From 404b20e6b828774966c3c3d2163bb9d271973f1c Mon Sep 17 00:00:00 2001 From: Jeff Lowdermilk Date: Mon, 16 Mar 2015 17:11:53 -0700 Subject: [PATCH] Add dependencies for k8petstore to Godeps Cleanup k8petstore to use Godeps dependencies, add to hack/build-go.sh Remove trailing spaces, README --- Godeps/Godeps.json | 28 +- .../github.com/codegangsta/negroni/LICENSE | 21 + .../github.com/codegangsta/negroni/README.md | 181 +++ .../src/github.com/codegangsta/negroni/doc.go | 25 + .../github.com/codegangsta/negroni/logger.go | 29 + .../codegangsta/negroni/logger_test.go | 33 + .../github.com/codegangsta/negroni/negroni.go | 119 ++ .../codegangsta/negroni/negroni_test.go | 75 ++ .../codegangsta/negroni/recovery.go | 46 + .../codegangsta/negroni/recovery_test.go | 28 + .../codegangsta/negroni/response_writer.go | 96 ++ .../negroni/response_writer_test.go | 150 +++ .../github.com/codegangsta/negroni/static.go | 84 ++ .../codegangsta/negroni/static_test.go | 113 ++ .../negroni/translations/README_pt_br.md | 165 +++ .../garyburd/redigo/internal/commandinfo.go | 45 + .../redigo/internal/redistest/testdb.go | 65 ++ .../github.com/garyburd/redigo/redis/conn.go | 455 ++++++++ .../garyburd/redigo/redis/conn_test.go | 542 +++++++++ .../github.com/garyburd/redigo/redis/doc.go | 169 +++ .../github.com/garyburd/redigo/redis/log.go | 117 ++ .../github.com/garyburd/redigo/redis/pool.go | 389 +++++++ .../garyburd/redigo/redis/pool_test.go | 674 +++++++++++ .../garyburd/redigo/redis/pubsub.go | 129 +++ .../garyburd/redigo/redis/pubsub_test.go | 143 +++ .../github.com/garyburd/redigo/redis/redis.go | 44 + .../github.com/garyburd/redigo/redis/reply.go | 312 +++++ .../garyburd/redigo/redis/reply_test.go | 166 +++ .../github.com/garyburd/redigo/redis/scan.go | 513 +++++++++ .../garyburd/redigo/redis/scan_test.go | 412 +++++++ .../garyburd/redigo/redis/script.go | 86 ++ .../garyburd/redigo/redis/script_test.go | 93 ++ .../garyburd/redigo/redis/test_test.go | 38 + .../redigo/redis/zpop_example_test.go | 113 ++ .../github.com/gorilla/context/.travis.yml | 9 + .../src/github.com/gorilla/context/LICENSE | 27 + .../src/github.com/gorilla/context/README.md | 7 + .../src/github.com/gorilla/context/context.go | 143 +++ .../gorilla/context/context_test.go | 161 +++ .../src/github.com/gorilla/context/doc.go | 82 ++ .../src/github.com/gorilla/mux/.travis.yml | 7 + .../src/github.com/gorilla/mux/LICENSE | 27 + .../src/github.com/gorilla/mux/README.md | 7 + .../src/github.com/gorilla/mux/bench_test.go | 21 + .../src/github.com/gorilla/mux/doc.go | 199 ++++ .../src/github.com/gorilla/mux/mux.go | 366 ++++++ .../src/github.com/gorilla/mux/mux_test.go | 1003 +++++++++++++++++ .../src/github.com/gorilla/mux/old_test.go | 714 ++++++++++++ .../src/github.com/gorilla/mux/regexp.go | 272 +++++ .../src/github.com/gorilla/mux/route.go | 571 ++++++++++ .../xyproto/simpleredis/.travis.yml | 7 + .../github.com/xyproto/simpleredis/LICENSE | 21 + .../github.com/xyproto/simpleredis/README.md | 92 ++ .../github.com/xyproto/simpleredis/TODO.md | 2 + .../xyproto/simpleredis/example/main.go | 49 + .../xyproto/simpleredis/simpleredis.go | 411 +++++++ .../xyproto/simpleredis/simpleredis_test.go | 66 ++ examples/k8petstore/README.md | 3 - .../web-server/{src/main => }/PetStoreBook.go | 9 +- .../web-server/{src/main => }/dump.rdb | Bin .../src/github.com/codegangsta/negroni | 1 - .../web-server/src/github.com/garyburd/redigo | 1 - .../web-server/src/github.com/gorilla/context | 1 - .../web-server/src/github.com/gorilla/mux | 1 - .../src/github.com/xyproto/simpleredis | 1 - hack/lib/golang.sh | 1 + 66 files changed, 9966 insertions(+), 14 deletions(-) create mode 100644 Godeps/_workspace/src/github.com/codegangsta/negroni/LICENSE create mode 100644 Godeps/_workspace/src/github.com/codegangsta/negroni/README.md create mode 100644 Godeps/_workspace/src/github.com/codegangsta/negroni/doc.go create mode 100644 Godeps/_workspace/src/github.com/codegangsta/negroni/logger.go create mode 100644 Godeps/_workspace/src/github.com/codegangsta/negroni/logger_test.go create mode 100644 Godeps/_workspace/src/github.com/codegangsta/negroni/negroni.go create mode 100644 Godeps/_workspace/src/github.com/codegangsta/negroni/negroni_test.go create mode 100644 Godeps/_workspace/src/github.com/codegangsta/negroni/recovery.go create mode 100644 Godeps/_workspace/src/github.com/codegangsta/negroni/recovery_test.go create mode 100644 Godeps/_workspace/src/github.com/codegangsta/negroni/response_writer.go create mode 100644 Godeps/_workspace/src/github.com/codegangsta/negroni/response_writer_test.go create mode 100644 Godeps/_workspace/src/github.com/codegangsta/negroni/static.go create mode 100644 Godeps/_workspace/src/github.com/codegangsta/negroni/static_test.go create mode 100644 Godeps/_workspace/src/github.com/codegangsta/negroni/translations/README_pt_br.md create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/internal/commandinfo.go create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/internal/redistest/testdb.go create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/redis/conn.go create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/redis/conn_test.go create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/redis/doc.go create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/redis/log.go create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/redis/pool.go create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/redis/pool_test.go create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/redis/pubsub.go create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/redis/pubsub_test.go create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/redis/redis.go create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/redis/reply.go create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/redis/reply_test.go create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/redis/scan.go create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/redis/scan_test.go create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/redis/script.go create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/redis/script_test.go create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/redis/test_test.go create mode 100644 Godeps/_workspace/src/github.com/garyburd/redigo/redis/zpop_example_test.go create mode 100644 Godeps/_workspace/src/github.com/gorilla/context/.travis.yml create mode 100644 Godeps/_workspace/src/github.com/gorilla/context/LICENSE create mode 100644 Godeps/_workspace/src/github.com/gorilla/context/README.md create mode 100644 Godeps/_workspace/src/github.com/gorilla/context/context.go create mode 100644 Godeps/_workspace/src/github.com/gorilla/context/context_test.go create mode 100644 Godeps/_workspace/src/github.com/gorilla/context/doc.go create mode 100644 Godeps/_workspace/src/github.com/gorilla/mux/.travis.yml create mode 100644 Godeps/_workspace/src/github.com/gorilla/mux/LICENSE create mode 100644 Godeps/_workspace/src/github.com/gorilla/mux/README.md create mode 100644 Godeps/_workspace/src/github.com/gorilla/mux/bench_test.go create mode 100644 Godeps/_workspace/src/github.com/gorilla/mux/doc.go create mode 100644 Godeps/_workspace/src/github.com/gorilla/mux/mux.go create mode 100644 Godeps/_workspace/src/github.com/gorilla/mux/mux_test.go create mode 100644 Godeps/_workspace/src/github.com/gorilla/mux/old_test.go create mode 100644 Godeps/_workspace/src/github.com/gorilla/mux/regexp.go create mode 100644 Godeps/_workspace/src/github.com/gorilla/mux/route.go create mode 100644 Godeps/_workspace/src/github.com/xyproto/simpleredis/.travis.yml create mode 100644 Godeps/_workspace/src/github.com/xyproto/simpleredis/LICENSE create mode 100644 Godeps/_workspace/src/github.com/xyproto/simpleredis/README.md create mode 100644 Godeps/_workspace/src/github.com/xyproto/simpleredis/TODO.md create mode 100644 Godeps/_workspace/src/github.com/xyproto/simpleredis/example/main.go create mode 100644 Godeps/_workspace/src/github.com/xyproto/simpleredis/simpleredis.go create mode 100644 Godeps/_workspace/src/github.com/xyproto/simpleredis/simpleredis_test.go rename examples/k8petstore/web-server/{src/main => }/PetStoreBook.go (99%) rename examples/k8petstore/web-server/{src/main => }/dump.rdb (100%) delete mode 160000 examples/k8petstore/web-server/src/github.com/codegangsta/negroni delete mode 160000 examples/k8petstore/web-server/src/github.com/garyburd/redigo delete mode 160000 examples/k8petstore/web-server/src/github.com/gorilla/context delete mode 160000 examples/k8petstore/web-server/src/github.com/gorilla/mux delete mode 160000 examples/k8petstore/web-server/src/github.com/xyproto/simpleredis diff --git a/Godeps/Godeps.json b/Godeps/Godeps.json index 9e0ec1fb8bf..a6e736a8431 100644 --- a/Godeps/Godeps.json +++ b/Godeps/Godeps.json @@ -1,6 +1,6 @@ { "ImportPath": "github.com/GoogleCloudPlatform/kubernetes", - "GoVersion": "go1.4.1", + "GoVersion": "go1.3", "Packages": [ "./..." ], @@ -62,6 +62,11 @@ "ImportPath": "github.com/beorn7/perks/quantile", "Rev": "b965b613227fddccbfffe13eae360ed3fa822f8d" }, + { + "ImportPath": "github.com/codegangsta/negroni", + "Comment": "v0.1-62-g8d75e11", + "Rev": "8d75e11374a1928608c906fe745b538483e7aeb2" + }, { "ImportPath": "github.com/coreos/go-etcd/etcd", "Comment": "v0.2.0-rc1-120-g23142f6", @@ -162,6 +167,14 @@ "ImportPath": "github.com/fsouza/go-dockerclient", "Rev": "d19717788084716e4adff0515be6289aa04bec46" }, + { + "ImportPath": "github.com/garyburd/redigo/internal", + "Rev": "535138d7bcd717d6531c701ef5933d98b1866257" + }, + { + "ImportPath": "github.com/garyburd/redigo/redis", + "Rev": "535138d7bcd717d6531c701ef5933d98b1866257" + }, { "ImportPath": "github.com/ghodss/yaml", "Rev": "588cb435e59ee8b6c2795482887755841ad67207" @@ -267,6 +280,14 @@ "ImportPath": "github.com/google/gofuzz", "Rev": "bbcb9da2d746f8bdbd6a936686a0a6067ada0ec5" }, + { + "ImportPath": "github.com/gorilla/context", + "Rev": "215affda49addc4c8ef7e2534915df2c8c35c6cd" + }, + { + "ImportPath": "github.com/gorilla/mux", + "Rev": "8096f47503459bcc74d1f4c487b7e6e42e5746b5" + }, { "ImportPath": "github.com/imdario/mergo", "Comment": "0.1.3-8-g6633656", @@ -383,6 +404,11 @@ "ImportPath": "github.com/vaughan0/go-ini", "Rev": "a98ad7ee00ec53921f08832bc06ecf7fd600e6a1" }, + { + "ImportPath": "github.com/xyproto/simpleredis", + "Comment": "v1.0-13-g5292687", + "Rev": "5292687f5379e01054407da44d7c4590a61fd3de" + }, { "ImportPath": "golang.org/x/net/context", "Rev": "cbcac7bb8415db9b6cb4d1ebab1dc9afbd688b97" diff --git a/Godeps/_workspace/src/github.com/codegangsta/negroni/LICENSE b/Godeps/_workspace/src/github.com/codegangsta/negroni/LICENSE new file mode 100644 index 00000000000..08b5e20ac47 --- /dev/null +++ b/Godeps/_workspace/src/github.com/codegangsta/negroni/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2014 Jeremy Saenz + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/Godeps/_workspace/src/github.com/codegangsta/negroni/README.md b/Godeps/_workspace/src/github.com/codegangsta/negroni/README.md new file mode 100644 index 00000000000..9294d705519 --- /dev/null +++ b/Godeps/_workspace/src/github.com/codegangsta/negroni/README.md @@ -0,0 +1,181 @@ +# Negroni [![GoDoc](https://godoc.org/github.com/codegangsta/negroni?status.svg)](http://godoc.org/github.com/codegangsta/negroni) [![wercker status](https://app.wercker.com/status/13688a4a94b82d84a0b8d038c4965b61/s "wercker status")](https://app.wercker.com/project/bykey/13688a4a94b82d84a0b8d038c4965b61) + +Negroni is an idiomatic approach to web middleware in Go. It is tiny, non-intrusive, and encourages use of `net/http` Handlers. + +If you like the idea of [Martini](http://github.com/go-martini/martini), but you think it contains too much magic, then Negroni is a great fit. + + +Language Translations: +* [Português Brasileiro (pt_BR)](translations/README_pt_br.md) + +## Getting Started + +After installing Go and setting up your [GOPATH](http://golang.org/doc/code.html#GOPATH), create your first `.go` file. We'll call it `server.go`. + +~~~ go +package main + +import ( + "github.com/codegangsta/negroni" + "net/http" + "fmt" +) + +func main() { + mux := http.NewServeMux() + mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) { + fmt.Fprintf(w, "Welcome to the home page!") + }) + + n := negroni.Classic() + n.UseHandler(mux) + n.Run(":3000") +} +~~~ + +Then install the Negroni package (**go 1.1** and greater is required): +~~~ +go get github.com/codegangsta/negroni +~~~ + +Then run your server: +~~~ +go run server.go +~~~ + +You will now have a Go net/http webserver running on `localhost:3000`. + +## Need Help? +If you have a question or feature request, [go ask the mailing list](https://groups.google.com/forum/#!forum/negroni-users). The GitHub issues for Negroni will be used exclusively for bug reports and pull requests. + +## Is Negroni a Framework? +Negroni is **not** a framework. It is a library that is designed to work directly with net/http. + +## Routing? +Negroni is BYOR (Bring your own Router). The Go community already has a number of great http routers available, Negroni tries to play well with all of them by fully supporting `net/http`. For instance, integrating with [Gorilla Mux](http://github.com/gorilla/mux) looks like so: + +~~~ go +router := mux.NewRouter() +router.HandleFunc("/", HomeHandler) + +n := negroni.New(Middleware1, Middleware2) +// Or use a middleware with the Use() function +n.Use(Middleware3) +// router goes last +n.UseHandler(router) + +n.Run(":3000") +~~~ + +## `negroni.Classic()` +`negroni.Classic()` provides some default middleware that is useful for most applications: + +* `negroni.Recovery` - Panic Recovery Middleware. +* `negroni.Logging` - Request/Response Logging Middleware. +* `negroni.Static` - Static File serving under the "public" directory. + +This makes it really easy to get started with some useful features from Negroni. + +## Handlers +Negroni provides a bidirectional middleware flow. This is done through the `negroni.Handler` interface: + +~~~ go +type Handler interface { + ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) +} +~~~ + +If a middleware hasn't already written to the ResponseWriter, it should call the next `http.HandlerFunc` in the chain to yield to the next middleware handler. This can be used for great good: + +~~~ go +func MyMiddleware(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) { + // do some stuff before + next(rw, r) + // do some stuff after +} +~~~ + +And you can map it to the handler chain with the `Use` function: + +~~~ go +n := negroni.New() +n.Use(negroni.HandlerFunc(MyMiddleware)) +~~~ + +You can also map plain old `http.Handler`s: + +~~~ go +n := negroni.New() + +mux := http.NewServeMux() +// map your routes + +n.UseHandler(mux) + +n.Run(":3000") +~~~ + +## `Run()` +Negroni has a convenience function called `Run`. `Run` takes an addr string identical to [http.ListenAndServe](http://golang.org/pkg/net/http#ListenAndServe). + +~~~ go +n := negroni.Classic() +// ... +log.Fatal(http.ListenAndServe(":8080", n)) +~~~ + +## Route Specific Middleware +If you have a route group of routes that need specific middleware to be executed, you can simply create a new Negroni instance and use it as your route handler. + +~~~ go +router := mux.NewRouter() +adminRoutes := mux.NewRouter() +// add admin routes here + +// Create a new negroni for the admin middleware +router.Handle("/admin", negroni.New( + Middleware1, + Middleware2, + negroni.Wrap(adminRoutes), +)) +~~~ + +## Third Party Middleware + +Here is a current list of Negroni compatible middlware. Feel free to put up a PR linking your middleware if you have built one: + + +| Middleware | Author | Description | +| -----------|--------|-------------| +| [RestGate](https://github.com/pjebs/restgate) | [Prasanga Siripala](https://github.com/pjebs) | Secure authentication for REST API endpoints | +| [Graceful](https://github.com/stretchr/graceful) | [Tyler Bunnell](https://github.com/tylerb) | Graceful HTTP Shutdown | +| [secure](https://github.com/unrolled/secure) | [Cory Jacobsen](https://github.com/unrolled) | Middleware that implements a few quick security wins | +| [JWT Middleware](https://github.com/auth0/go-jwt-middleware) | [Auth0](https://github.com/auth0) | Middleware checks for a JWT on the `Authorization` header on incoming requests and decodes it| +| [binding](https://github.com/mholt/binding) | [Matt Holt](https://github.com/mholt) | Data binding from HTTP requests into structs | +| [logrus](https://github.com/meatballhat/negroni-logrus) | [Dan Buch](https://github.com/meatballhat) | Logrus-based logger | +| [render](https://github.com/unrolled/render) | [Cory Jacobsen](https://github.com/unrolled) | Render JSON, XML and HTML templates | +| [gorelic](https://github.com/jingweno/negroni-gorelic) | [Jingwen Owen Ou](https://github.com/jingweno) | New Relic agent for Go runtime | +| [gzip](https://github.com/phyber/negroni-gzip) | [phyber](https://github.com/phyber) | GZIP response compression | +| [oauth2](https://github.com/goincremental/negroni-oauth2) | [David Bochenski](https://github.com/bochenski) | oAuth2 middleware | +| [sessions](https://github.com/goincremental/negroni-sessions) | [David Bochenski](https://github.com/bochenski) | Session Management | +| [permissions2](https://github.com/xyproto/permissions2) | [Alexander Rødseth](https://github.com/xyproto) | Cookies, users and permissions | +| [onthefly](https://github.com/xyproto/onthefly) | [Alexander Rødseth](https://github.com/xyproto) | Generate TinySVG, HTML and CSS on the fly | +| [cors](https://github.com/rs/cors) | [Olivier Poitrey](https://github.com/rs) | [Cross Origin Resource Sharing](http://www.w3.org/TR/cors/) (CORS) support | +| [xrequestid](https://github.com/pilu/xrequestid) | [Andrea Franz](https://github.com/pilu) | Middleware that assigns a random X-Request-Id header to each request | +| [VanGoH](https://github.com/auroratechnologies/vangoh) | [Taylor Wrobel](https://github.com/twrobel3) | Configurable [AWS-Style](http://docs.aws.amazon.com/AmazonS3/latest/dev/RESTAuthentication.html) HMAC authentication middleware | +| [stats](https://github.com/thoas/stats) | [Florent Messa](https://github.com/thoas) | Store information about your web application (response time, etc.) | + +## Examples +[Alexander Rødseth](https://github.com/xyproto) created [mooseware](https://github.com/xyproto/mooseware), a skeleton for writing a Negroni middleware handler. + +## Live code reload? +[gin](https://github.com/codegangsta/gin) and [fresh](https://github.com/pilu/fresh) both live reload negroni apps. + +## Essential Reading for Beginners of Go & Negroni + +* [Using a Context to pass information from middleware to end handler](http://elithrar.github.io/article/map-string-interface/) +* [Understanding middleware](http://mattstauffer.co/blog/laravel-5.0-middleware-replacing-filters) + +## About + +Negroni is obsessively designed by none other than the [Code Gangsta](http://codegangsta.io/) diff --git a/Godeps/_workspace/src/github.com/codegangsta/negroni/doc.go b/Godeps/_workspace/src/github.com/codegangsta/negroni/doc.go new file mode 100644 index 00000000000..24d6572c2fe --- /dev/null +++ b/Godeps/_workspace/src/github.com/codegangsta/negroni/doc.go @@ -0,0 +1,25 @@ +// Package negroni is an idiomatic approach to web middleware in Go. It is tiny, non-intrusive, and encourages use of net/http Handlers. +// +// If you like the idea of Martini, but you think it contains too much magic, then Negroni is a great fit. +// +// For a full guide visit http://github.com/codegangsta/negroni +// +// package main +// +// import ( +// "github.com/codegangsta/negroni" +// "net/http" +// "fmt" +// ) +// +// func main() { +// mux := http.NewServeMux() +// mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) { +// fmt.Fprintf(w, "Welcome to the home page!") +// }) +// +// n := negroni.Classic() +// n.UseHandler(mux) +// n.Run(":3000") +// } +package negroni diff --git a/Godeps/_workspace/src/github.com/codegangsta/negroni/logger.go b/Godeps/_workspace/src/github.com/codegangsta/negroni/logger.go new file mode 100644 index 00000000000..e3828ef319f --- /dev/null +++ b/Godeps/_workspace/src/github.com/codegangsta/negroni/logger.go @@ -0,0 +1,29 @@ +package negroni + +import ( + "log" + "net/http" + "os" + "time" +) + +// Logger is a middleware handler that logs the request as it goes in and the response as it goes out. +type Logger struct { + // Logger inherits from log.Logger used to log messages with the Logger middleware + *log.Logger +} + +// NewLogger returns a new Logger instance +func NewLogger() *Logger { + return &Logger{log.New(os.Stdout, "[negroni] ", 0)} +} + +func (l *Logger) ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) { + start := time.Now() + l.Printf("Started %s %s", r.Method, r.URL.Path) + + next(rw, r) + + res := rw.(ResponseWriter) + l.Printf("Completed %v %s in %v", res.Status(), http.StatusText(res.Status()), time.Since(start)) +} diff --git a/Godeps/_workspace/src/github.com/codegangsta/negroni/logger_test.go b/Godeps/_workspace/src/github.com/codegangsta/negroni/logger_test.go new file mode 100644 index 00000000000..880337d1a9b --- /dev/null +++ b/Godeps/_workspace/src/github.com/codegangsta/negroni/logger_test.go @@ -0,0 +1,33 @@ +package negroni + +import ( + "bytes" + "log" + "net/http" + "net/http/httptest" + "testing" +) + +func Test_Logger(t *testing.T) { + buff := bytes.NewBufferString("") + recorder := httptest.NewRecorder() + + l := NewLogger() + l.Logger = log.New(buff, "[negroni] ", 0) + + n := New() + // replace log for testing + n.Use(l) + n.UseHandler(http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) { + rw.WriteHeader(http.StatusNotFound) + })) + + req, err := http.NewRequest("GET", "http://localhost:3000/foobar", nil) + if err != nil { + t.Error(err) + } + + n.ServeHTTP(recorder, req) + expect(t, recorder.Code, http.StatusNotFound) + refute(t, len(buff.String()), 0) +} diff --git a/Godeps/_workspace/src/github.com/codegangsta/negroni/negroni.go b/Godeps/_workspace/src/github.com/codegangsta/negroni/negroni.go new file mode 100644 index 00000000000..e367b7c28ff --- /dev/null +++ b/Godeps/_workspace/src/github.com/codegangsta/negroni/negroni.go @@ -0,0 +1,119 @@ +package negroni + +import ( + "log" + "net/http" + "os" +) + +// Handler handler is an interface that objects can implement to be registered to serve as middleware +// in the Negroni middleware stack. +// ServeHTTP should yield to the next middleware in the chain by invoking the next http.HandlerFunc +// passed in. +// +// If the Handler writes to the ResponseWriter, the next http.HandlerFunc should not be invoked. +type Handler interface { + ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) +} + +// HandlerFunc is an adapter to allow the use of ordinary functions as Negroni handlers. +// If f is a function with the appropriate signature, HandlerFunc(f) is a Handler object that calls f. +type HandlerFunc func(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) + +func (h HandlerFunc) ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) { + h(rw, r, next) +} + +type middleware struct { + handler Handler + next *middleware +} + +func (m middleware) ServeHTTP(rw http.ResponseWriter, r *http.Request) { + m.handler.ServeHTTP(rw, r, m.next.ServeHTTP) +} + +// Wrap converts a http.Handler into a negroni.Handler so it can be used as a Negroni +// middleware. The next http.HandlerFunc is automatically called after the Handler +// is executed. +func Wrap(handler http.Handler) Handler { + return HandlerFunc(func(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) { + handler.ServeHTTP(rw, r) + next(rw, r) + }) +} + +// Negroni is a stack of Middleware Handlers that can be invoked as an http.Handler. +// Negroni middleware is evaluated in the order that they are added to the stack using +// the Use and UseHandler methods. +type Negroni struct { + middleware middleware + handlers []Handler +} + +// New returns a new Negroni instance with no middleware preconfigured. +func New(handlers ...Handler) *Negroni { + return &Negroni{ + handlers: handlers, + middleware: build(handlers), + } +} + +// Classic returns a new Negroni instance with the default middleware already +// in the stack. +// +// Recovery - Panic Recovery Middleware +// Logger - Request/Response Logging +// Static - Static File Serving +func Classic() *Negroni { + return New(NewRecovery(), NewLogger(), NewStatic(http.Dir("public"))) +} + +func (n *Negroni) ServeHTTP(rw http.ResponseWriter, r *http.Request) { + n.middleware.ServeHTTP(NewResponseWriter(rw), r) +} + +// Use adds a Handler onto the middleware stack. Handlers are invoked in the order they are added to a Negroni. +func (n *Negroni) Use(handler Handler) { + n.handlers = append(n.handlers, handler) + n.middleware = build(n.handlers) +} + +// UseHandler adds a http.Handler onto the middleware stack. Handlers are invoked in the order they are added to a Negroni. +func (n *Negroni) UseHandler(handler http.Handler) { + n.Use(Wrap(handler)) +} + +// Run is a convenience function that runs the negroni stack as an HTTP +// server. The addr string takes the same format as http.ListenAndServe. +func (n *Negroni) Run(addr string) { + l := log.New(os.Stdout, "[negroni] ", 0) + l.Printf("listening on %s", addr) + l.Fatal(http.ListenAndServe(addr, n)) +} + +// Returns a list of all the handlers in the current Negroni middleware chain. +func (n *Negroni) Handlers() ([]Handler) { + return n.handlers +} + +func build(handlers []Handler) middleware { + var next middleware + + if len(handlers) == 0 { + return voidMiddleware() + } else if len(handlers) > 1 { + next = build(handlers[1:]) + } else { + next = voidMiddleware() + } + + return middleware{handlers[0], &next} +} + +func voidMiddleware() middleware { + return middleware{ + HandlerFunc(func(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) {}), + &middleware{}, + } +} diff --git a/Godeps/_workspace/src/github.com/codegangsta/negroni/negroni_test.go b/Godeps/_workspace/src/github.com/codegangsta/negroni/negroni_test.go new file mode 100644 index 00000000000..0f6607a3b0b --- /dev/null +++ b/Godeps/_workspace/src/github.com/codegangsta/negroni/negroni_test.go @@ -0,0 +1,75 @@ +package negroni + +import ( + "net/http" + "net/http/httptest" + "reflect" + "testing" +) + +/* Test Helpers */ +func expect(t *testing.T, a interface{}, b interface{}) { + if a != b { + t.Errorf("Expected %v (type %v) - Got %v (type %v)", b, reflect.TypeOf(b), a, reflect.TypeOf(a)) + } +} + +func refute(t *testing.T, a interface{}, b interface{}) { + if a == b { + t.Errorf("Did not expect %v (type %v) - Got %v (type %v)", b, reflect.TypeOf(b), a, reflect.TypeOf(a)) + } +} + +func TestNegroniRun(t *testing.T) { + // just test that Run doesn't bomb + go New().Run(":3000") +} + +func TestNegroniServeHTTP(t *testing.T) { + result := "" + response := httptest.NewRecorder() + + n := New() + n.Use(HandlerFunc(func(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) { + result += "foo" + next(rw, r) + result += "ban" + })) + n.Use(HandlerFunc(func(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) { + result += "bar" + next(rw, r) + result += "baz" + })) + n.Use(HandlerFunc(func(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) { + result += "bat" + rw.WriteHeader(http.StatusBadRequest) + })) + + n.ServeHTTP(response, (*http.Request)(nil)) + + expect(t, result, "foobarbatbazban") + expect(t, response.Code, http.StatusBadRequest) +} + +// Ensures that a Negroni middleware chain +// can correctly return all of its handlers. +func TestHandlers(t *testing.T) { + response := httptest.NewRecorder() + n := New() + handlers := n.Handlers() + expect(t, 0, len(handlers)) + + n.Use(HandlerFunc(func(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) { + rw.WriteHeader(http.StatusOK) + })) + + // Expects the length of handlers to be exactly 1 + // after adding exactly one handler to the middleware chain + handlers = n.Handlers() + expect(t, 1, len(handlers)) + + // Ensures that the first handler that is in sequence behaves + // exactly the same as the one that was registered earlier + handlers[0].ServeHTTP(response, (*http.Request)(nil), nil) + expect(t, response.Code, http.StatusOK) +} \ No newline at end of file diff --git a/Godeps/_workspace/src/github.com/codegangsta/negroni/recovery.go b/Godeps/_workspace/src/github.com/codegangsta/negroni/recovery.go new file mode 100644 index 00000000000..d790cade652 --- /dev/null +++ b/Godeps/_workspace/src/github.com/codegangsta/negroni/recovery.go @@ -0,0 +1,46 @@ +package negroni + +import ( + "fmt" + "log" + "net/http" + "os" + "runtime" +) + +// Recovery is a Negroni middleware that recovers from any panics and writes a 500 if there was one. +type Recovery struct { + Logger *log.Logger + PrintStack bool + StackAll bool + StackSize int +} + +// NewRecovery returns a new instance of Recovery +func NewRecovery() *Recovery { + return &Recovery{ + Logger: log.New(os.Stdout, "[negroni] ", 0), + PrintStack: true, + StackAll: false, + StackSize: 1024 * 8, + } +} + +func (rec *Recovery) ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) { + defer func() { + if err := recover(); err != nil { + rw.WriteHeader(http.StatusInternalServerError) + stack := make([]byte, rec.StackSize) + stack = stack[:runtime.Stack(stack, rec.StackAll)] + + f := "PANIC: %s\n%s" + rec.Logger.Printf(f, err, stack) + + if rec.PrintStack { + fmt.Fprintf(rw, f, err, stack) + } + } + }() + + next(rw, r) +} diff --git a/Godeps/_workspace/src/github.com/codegangsta/negroni/recovery_test.go b/Godeps/_workspace/src/github.com/codegangsta/negroni/recovery_test.go new file mode 100644 index 00000000000..3fa264acba9 --- /dev/null +++ b/Godeps/_workspace/src/github.com/codegangsta/negroni/recovery_test.go @@ -0,0 +1,28 @@ +package negroni + +import ( + "bytes" + "log" + "net/http" + "net/http/httptest" + "testing" +) + +func TestRecovery(t *testing.T) { + buff := bytes.NewBufferString("") + recorder := httptest.NewRecorder() + + rec := NewRecovery() + rec.Logger = log.New(buff, "[negroni] ", 0) + + n := New() + // replace log for testing + n.Use(rec) + n.UseHandler(http.HandlerFunc(func(res http.ResponseWriter, req *http.Request) { + panic("here is a panic!") + })) + n.ServeHTTP(recorder, (*http.Request)(nil)) + expect(t, recorder.Code, http.StatusInternalServerError) + refute(t, recorder.Body.Len(), 0) + refute(t, len(buff.String()), 0) +} diff --git a/Godeps/_workspace/src/github.com/codegangsta/negroni/response_writer.go b/Godeps/_workspace/src/github.com/codegangsta/negroni/response_writer.go new file mode 100644 index 00000000000..ea86a2657d0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/codegangsta/negroni/response_writer.go @@ -0,0 +1,96 @@ +package negroni + +import ( + "bufio" + "fmt" + "net" + "net/http" +) + +// ResponseWriter is a wrapper around http.ResponseWriter that provides extra information about +// the response. It is recommended that middleware handlers use this construct to wrap a responsewriter +// if the functionality calls for it. +type ResponseWriter interface { + http.ResponseWriter + http.Flusher + // Status returns the status code of the response or 0 if the response has not been written. + Status() int + // Written returns whether or not the ResponseWriter has been written. + Written() bool + // Size returns the size of the response body. + Size() int + // Before allows for a function to be called before the ResponseWriter has been written to. This is + // useful for setting headers or any other operations that must happen before a response has been written. + Before(func(ResponseWriter)) +} + +type beforeFunc func(ResponseWriter) + +// NewResponseWriter creates a ResponseWriter that wraps an http.ResponseWriter +func NewResponseWriter(rw http.ResponseWriter) ResponseWriter { + return &responseWriter{rw, 0, 0, nil} +} + +type responseWriter struct { + http.ResponseWriter + status int + size int + beforeFuncs []beforeFunc +} + +func (rw *responseWriter) WriteHeader(s int) { + rw.status = s + rw.callBefore() + rw.ResponseWriter.WriteHeader(s) +} + +func (rw *responseWriter) Write(b []byte) (int, error) { + if !rw.Written() { + // The status will be StatusOK if WriteHeader has not been called yet + rw.WriteHeader(http.StatusOK) + } + size, err := rw.ResponseWriter.Write(b) + rw.size += size + return size, err +} + +func (rw *responseWriter) Status() int { + return rw.status +} + +func (rw *responseWriter) Size() int { + return rw.size +} + +func (rw *responseWriter) Written() bool { + return rw.status != 0 +} + +func (rw *responseWriter) Before(before func(ResponseWriter)) { + rw.beforeFuncs = append(rw.beforeFuncs, before) +} + +func (rw *responseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) { + hijacker, ok := rw.ResponseWriter.(http.Hijacker) + if !ok { + return nil, nil, fmt.Errorf("the ResponseWriter doesn't support the Hijacker interface") + } + return hijacker.Hijack() +} + +func (rw *responseWriter) CloseNotify() <-chan bool { + return rw.ResponseWriter.(http.CloseNotifier).CloseNotify() +} + +func (rw *responseWriter) callBefore() { + for i := len(rw.beforeFuncs) - 1; i >= 0; i-- { + rw.beforeFuncs[i](rw) + } +} + +func (rw *responseWriter) Flush() { + flusher, ok := rw.ResponseWriter.(http.Flusher) + if ok { + flusher.Flush() + } +} diff --git a/Godeps/_workspace/src/github.com/codegangsta/negroni/response_writer_test.go b/Godeps/_workspace/src/github.com/codegangsta/negroni/response_writer_test.go new file mode 100644 index 00000000000..ed1ee70a6a2 --- /dev/null +++ b/Godeps/_workspace/src/github.com/codegangsta/negroni/response_writer_test.go @@ -0,0 +1,150 @@ +package negroni + +import ( + "bufio" + "net" + "net/http" + "net/http/httptest" + "testing" + "time" +) + +type closeNotifyingRecorder struct { + *httptest.ResponseRecorder + closed chan bool +} + +func newCloseNotifyingRecorder() *closeNotifyingRecorder { + return &closeNotifyingRecorder{ + httptest.NewRecorder(), + make(chan bool, 1), + } +} + +func (c *closeNotifyingRecorder) close() { + c.closed <- true +} + +func (c *closeNotifyingRecorder) CloseNotify() <-chan bool { + return c.closed +} + +type hijackableResponse struct { + Hijacked bool +} + +func newHijackableResponse() *hijackableResponse { + return &hijackableResponse{} +} + +func (h *hijackableResponse) Header() http.Header { return nil } +func (h *hijackableResponse) Write(buf []byte) (int, error) { return 0, nil } +func (h *hijackableResponse) WriteHeader(code int) {} +func (h *hijackableResponse) Flush() {} +func (h *hijackableResponse) Hijack() (net.Conn, *bufio.ReadWriter, error) { + h.Hijacked = true + return nil, nil, nil +} + +func TestResponseWriterWritingString(t *testing.T) { + rec := httptest.NewRecorder() + rw := NewResponseWriter(rec) + + rw.Write([]byte("Hello world")) + + expect(t, rec.Code, rw.Status()) + expect(t, rec.Body.String(), "Hello world") + expect(t, rw.Status(), http.StatusOK) + expect(t, rw.Size(), 11) + expect(t, rw.Written(), true) +} + +func TestResponseWriterWritingStrings(t *testing.T) { + rec := httptest.NewRecorder() + rw := NewResponseWriter(rec) + + rw.Write([]byte("Hello world")) + rw.Write([]byte("foo bar bat baz")) + + expect(t, rec.Code, rw.Status()) + expect(t, rec.Body.String(), "Hello worldfoo bar bat baz") + expect(t, rw.Status(), http.StatusOK) + expect(t, rw.Size(), 26) +} + +func TestResponseWriterWritingHeader(t *testing.T) { + rec := httptest.NewRecorder() + rw := NewResponseWriter(rec) + + rw.WriteHeader(http.StatusNotFound) + + expect(t, rec.Code, rw.Status()) + expect(t, rec.Body.String(), "") + expect(t, rw.Status(), http.StatusNotFound) + expect(t, rw.Size(), 0) +} + +func TestResponseWriterBefore(t *testing.T) { + rec := httptest.NewRecorder() + rw := NewResponseWriter(rec) + result := "" + + rw.Before(func(ResponseWriter) { + result += "foo" + }) + rw.Before(func(ResponseWriter) { + result += "bar" + }) + + rw.WriteHeader(http.StatusNotFound) + + expect(t, rec.Code, rw.Status()) + expect(t, rec.Body.String(), "") + expect(t, rw.Status(), http.StatusNotFound) + expect(t, rw.Size(), 0) + expect(t, result, "barfoo") +} + +func TestResponseWriterHijack(t *testing.T) { + hijackable := newHijackableResponse() + rw := NewResponseWriter(hijackable) + hijacker, ok := rw.(http.Hijacker) + expect(t, ok, true) + _, _, err := hijacker.Hijack() + if err != nil { + t.Error(err) + } + expect(t, hijackable.Hijacked, true) +} + +func TestResponseWriteHijackNotOK(t *testing.T) { + hijackable := new(http.ResponseWriter) + rw := NewResponseWriter(*hijackable) + hijacker, ok := rw.(http.Hijacker) + expect(t, ok, true) + _, _, err := hijacker.Hijack() + + refute(t, err, nil) +} + +func TestResponseWriterCloseNotify(t *testing.T) { + rec := newCloseNotifyingRecorder() + rw := NewResponseWriter(rec) + closed := false + notifier := rw.(http.CloseNotifier).CloseNotify() + rec.close() + select { + case <-notifier: + closed = true + case <-time.After(time.Second): + } + expect(t, closed, true) +} + +func TestResponseWriterFlusher(t *testing.T) { + rec := httptest.NewRecorder() + rw := NewResponseWriter(rec) + + _, ok := rw.(http.Flusher) + expect(t, ok, true) +} diff --git a/Godeps/_workspace/src/github.com/codegangsta/negroni/static.go b/Godeps/_workspace/src/github.com/codegangsta/negroni/static.go new file mode 100644 index 00000000000..c5af4e6882f --- /dev/null +++ b/Godeps/_workspace/src/github.com/codegangsta/negroni/static.go @@ -0,0 +1,84 @@ +package negroni + +import ( + "net/http" + "path" + "strings" +) + +// Static is a middleware handler that serves static files in the given directory/filesystem. +type Static struct { + // Dir is the directory to serve static files from + Dir http.FileSystem + // Prefix is the optional prefix used to serve the static directory content + Prefix string + // IndexFile defines which file to serve as index if it exists. + IndexFile string +} + +// NewStatic returns a new instance of Static +func NewStatic(directory http.FileSystem) *Static { + return &Static{ + Dir: directory, + Prefix: "", + IndexFile: "index.html", + } +} + +func (s *Static) ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) { + if r.Method != "GET" && r.Method != "HEAD" { + next(rw, r) + return + } + file := r.URL.Path + // if we have a prefix, filter requests by stripping the prefix + if s.Prefix != "" { + if !strings.HasPrefix(file, s.Prefix) { + next(rw, r) + return + } + file = file[len(s.Prefix):] + if file != "" && file[0] != '/' { + next(rw, r) + return + } + } + f, err := s.Dir.Open(file) + if err != nil { + // discard the error? + next(rw, r) + return + } + defer f.Close() + + fi, err := f.Stat() + if err != nil { + next(rw, r) + return + } + + // try to serve index file + if fi.IsDir() { + // redirect if missing trailing slash + if !strings.HasSuffix(r.URL.Path, "/") { + http.Redirect(rw, r, r.URL.Path+"/", http.StatusFound) + return + } + + file = path.Join(file, s.IndexFile) + f, err = s.Dir.Open(file) + if err != nil { + next(rw, r) + return + } + defer f.Close() + + fi, err = f.Stat() + if err != nil || fi.IsDir() { + next(rw, r) + return + } + } + + http.ServeContent(rw, r, file, fi.ModTime(), f) +} diff --git a/Godeps/_workspace/src/github.com/codegangsta/negroni/static_test.go b/Godeps/_workspace/src/github.com/codegangsta/negroni/static_test.go new file mode 100644 index 00000000000..637cfcd68e0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/codegangsta/negroni/static_test.go @@ -0,0 +1,113 @@ +package negroni + +import ( + "bytes" + "net/http" + "net/http/httptest" + "testing" +) + +func TestStatic(t *testing.T) { + response := httptest.NewRecorder() + response.Body = new(bytes.Buffer) + + n := New() + n.Use(NewStatic(http.Dir("."))) + + req, err := http.NewRequest("GET", "http://localhost:3000/negroni.go", nil) + if err != nil { + t.Error(err) + } + n.ServeHTTP(response, req) + expect(t, response.Code, http.StatusOK) + expect(t, response.Header().Get("Expires"), "") + if response.Body.Len() == 0 { + t.Errorf("Got empty body for GET request") + } +} + +func TestStaticHead(t *testing.T) { + response := httptest.NewRecorder() + response.Body = new(bytes.Buffer) + + n := New() + n.Use(NewStatic(http.Dir("."))) + n.UseHandler(http.NotFoundHandler()) + + req, err := http.NewRequest("HEAD", "http://localhost:3000/negroni.go", nil) + if err != nil { + t.Error(err) + } + + n.ServeHTTP(response, req) + expect(t, response.Code, http.StatusOK) + if response.Body.Len() != 0 { + t.Errorf("Got non-empty body for HEAD request") + } +} + +func TestStaticAsPost(t *testing.T) { + response := httptest.NewRecorder() + + n := New() + n.Use(NewStatic(http.Dir("."))) + n.UseHandler(http.NotFoundHandler()) + + req, err := http.NewRequest("POST", "http://localhost:3000/negroni.go", nil) + if err != nil { + t.Error(err) + } + + n.ServeHTTP(response, req) + expect(t, response.Code, http.StatusNotFound) +} + +func TestStaticBadDir(t *testing.T) { + response := httptest.NewRecorder() + + n := Classic() + n.UseHandler(http.NotFoundHandler()) + + req, err := http.NewRequest("GET", "http://localhost:3000/negroni.go", nil) + if err != nil { + t.Error(err) + } + + n.ServeHTTP(response, req) + refute(t, response.Code, http.StatusOK) +} + +func TestStaticOptionsServeIndex(t *testing.T) { + response := httptest.NewRecorder() + + n := New() + s := NewStatic(http.Dir(".")) + s.IndexFile = "negroni.go" + n.Use(s) + + req, err := http.NewRequest("GET", "http://localhost:3000/", nil) + if err != nil { + t.Error(err) + } + + n.ServeHTTP(response, req) + expect(t, response.Code, http.StatusOK) +} + +func TestStaticOptionsPrefix(t *testing.T) { + response := httptest.NewRecorder() + + n := New() + s := NewStatic(http.Dir(".")) + s.Prefix = "/public" + n.Use(s) + + // Check file content behaviour + req, err := http.NewRequest("GET", "http://localhost:3000/public/negroni.go", nil) + if err != nil { + t.Error(err) + } + + n.ServeHTTP(response, req) + expect(t, response.Code, http.StatusOK) +} diff --git a/Godeps/_workspace/src/github.com/codegangsta/negroni/translations/README_pt_br.md b/Godeps/_workspace/src/github.com/codegangsta/negroni/translations/README_pt_br.md new file mode 100644 index 00000000000..0ecaafc712b --- /dev/null +++ b/Godeps/_workspace/src/github.com/codegangsta/negroni/translations/README_pt_br.md @@ -0,0 +1,165 @@ +# Negroni [![GoDoc](https://godoc.org/github.com/codegangsta/negroni?status.svg)](http://godoc.org/github.com/codegangsta/negroni) [![wercker status](https://app.wercker.com/status/13688a4a94b82d84a0b8d038c4965b61/s "wercker status")](https://app.wercker.com/project/bykey/13688a4a94b82d84a0b8d038c4965b61) + +Negroni é uma abordagem idiomática para middleware web em Go. É pequeno, não intrusivo, e incentiva uso da biblioteca `net/http`. + +Se gosta da idéia do [Martini](http://github.com/go-martini/martini), mas acha que contém muita mágica, então Negroni é ideal. + +## Começando + +Depois de instalar Go e definir seu [GOPATH](http://golang.org/doc/code.html#GOPATH), criar seu primeirto arquivo `.go`. Iremos chamá-lo `server.go`. + +~~~ go +package main + +import ( + "github.com/codegangsta/negroni" + "net/http" + "fmt" +) + +func main() { + mux := http.NewServeMux() + mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) { + fmt.Fprintf(w, "Welcome to the home page!") + }) + + n := negroni.Classic() + n.UseHandler(mux) + n.Run(":3000") +} +~~~ + +Depois instale o pacote Negroni (**go 1.1** ou superior) +~~~ +go get github.com/codegangsta/negroni +~~~ + +Depois execute seu servidor: +~~~ +go run server.go +~~~ + +Agora terá um servidor web Go net/http rodando em `localhost:3000`. + +## Precisa de Ajuda? +Se você tem uma pergunta ou pedido de recurso,[go ask the mailing list](https://groups.google.com/forum/#!forum/negroni-users). O Github issuses para o Negroni será usado exclusivamente para Reportar bugs e pull requests. + +## Negroni é um Framework? +Negroni **não** é a framework. É uma biblioteca que é desenhada para trabalhar diretamente com net/http. + +## Roteamento? +Negroni é TSPR(Traga seu próprio Roteamento). A comunidade Go já tem um grande número de roteadores http disponíveis, Negroni tenta rodar bem com todos eles pelo suporte total `net/http`/ Por exemplo, a integração com [Gorilla Mux](http://github.com/gorilla/mux) se parece com isso: + +~~~ go +router := mux.NewRouter() +router.HandleFunc("/", HomeHandler) + +n := negroni.New(Middleware1, Middleware2) +// Or use a middleware with the Use() function +n.Use(Middleware3) +// router goes last +n.UseHandler(router) + +n.Run(":3000") +~~~ + +## `negroni.Classic()` +`negroni.Classic()` fornece alguns middlewares padrão que são útil para maioria das aplicações: + +* `negroni.Recovery` - Panic Recovery Middleware. +* `negroni.Logging` - Request/Response Logging Middleware. +* `negroni.Static` - Static File serving under the "public" directory. + +Isso torna muito fácil começar com alguns recursos úteis do Negroni. + +## Handlers +Negroni fornece um middleware de fluxo bidirecional. Isso é feito através da interface `negroni.Handler`: + +~~~ go +type Handler interface { + ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) +} +~~~ + +Se um middleware não tenha escrito o ResponseWriter, ele deve chamar a próxima `http.HandlerFunc` na cadeia para produzir o próximo handler middleware. Isso pode ser usado muito bem: + +~~~ go +func MyMiddleware(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) { + // do some stuff before + next(rw, r) + // do some stuff after +} +~~~ + +E pode mapear isso para a cadeia de handler com a função `Use`: + +~~~ go +n := negroni.New() +n.Use(negroni.HandlerFunc(MyMiddleware)) +~~~ + +Você também pode mapear `http.Handler` antigos: + +~~~ go +n := negroni.New() + +mux := http.NewServeMux() +// map your routes + +n.UseHandler(mux) + +n.Run(":3000") +~~~ + +## `Run()` +Negroni tem uma função de conveniência chamada `Run`. `Run` pega um endereço de string idêntico para [http.ListenAndServe](http://golang.org/pkg/net/http#ListenAndServe). + +~~~ go +n := negroni.Classic() +// ... +log.Fatal(http.ListenAndServe(":8080", n)) +~~~ + +## Middleware para Rotas Específicas +Se você tem um grupo de rota com rotas que precisam ser executadas por um middleware específico, pode simplesmente criar uma nova instância de Negroni e usar no seu Manipular de rota. + +~~~ go +router := mux.NewRouter() +adminRoutes := mux.NewRouter() +// add admin routes here + +// Criar um middleware negroni para admin +router.Handle("/admin", negroni.New( + Middleware1, + Middleware2, + negroni.Wrap(adminRoutes), +)) +~~~ + +## Middleware de Terceiros + +Aqui está uma lista atual de Middleware Compatíveis com Negroni. Sinta se livre para mandar um PR vinculando seu middleware if construiu um: + + +| Middleware | Autor | Descrição | +| -----------|--------|-------------| +| [Graceful](https://github.com/stretchr/graceful) | [Tyler Bunnell](https://github.com/tylerb) | Graceful HTTP Shutdown | +| [secure](https://github.com/unrolled/secure) | [Cory Jacobsen](https://github.com/unrolled) | Implementa rapidamente itens de segurança.| +| [binding](https://github.com/mholt/binding) | [Matt Holt](https://github.com/mholt) | Handler para mapeamento/validação de um request a estrutura. | +| [logrus](https://github.com/meatballhat/negroni-logrus) | [Dan Buch](https://github.com/meatballhat) | Logrus-based logger | +| [render](https://github.com/unrolled/render) | [Cory Jacobsen](https://github.com/unrolled) | Pacote para renderizar JSON, XML, e templates HTML. | +| [gorelic](https://github.com/jingweno/negroni-gorelic) | [Jingwen Owen Ou](https://github.com/jingweno) | New Relic agent for Go runtime | +| [gzip](https://github.com/phyber/negroni-gzip) | [phyber](https://github.com/phyber) | Handler para adicionar compreção gzip para as requisições | +| [oauth2](https://github.com/goincremental/negroni-oauth2) | [David Bochenski](https://github.com/bochenski) | Handler que prove sistema de login OAuth 2.0 para aplicações Martini. Google Sign-in, Facebook Connect e Github login são suportados. | +| [sessions](https://github.com/goincremental/negroni-sessions) | [David Bochenski](https://github.com/bochenski) | Handler que provê o serviço de sessão. | +| [permissions](https://github.com/xyproto/permissions) | [Alexander Rødseth](https://github.com/xyproto) | Cookies, usuários e permissões. | +| [onthefly](https://github.com/xyproto/onthefly) | [Alexander Rødseth](https://github.com/xyproto) | Pacote para gerar TinySVG, HTML e CSS em tempo real. | + +## Exemplos +[Alexander Rødseth](https://github.com/xyproto) criou [mooseware](https://github.com/xyproto/mooseware), uma estrutura para escrever um handler middleware Negroni. + +## Servidor com autoreload? +[gin](https://github.com/codegangsta/gin) e [fresh](https://github.com/pilu/fresh) são aplicativos para autoreload do Negroni. + +## Sobre +Negroni é obsessivamente desenhado por ninguém menos que [Code Gangsta](http://codegangsta.io/) diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/internal/commandinfo.go b/Godeps/_workspace/src/github.com/garyburd/redigo/internal/commandinfo.go new file mode 100644 index 00000000000..7ad1ade5710 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/internal/commandinfo.go @@ -0,0 +1,45 @@ +// Copyright 2014 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package internal // import "github.com/garyburd/redigo/internal" + +import ( + "strings" +) + +const ( + WatchState = 1 << iota + MultiState + SubscribeState + MonitorState +) + +type CommandInfo struct { + Set, Clear int +} + +var commandInfos = map[string]CommandInfo{ + "WATCH": {Set: WatchState}, + "UNWATCH": {Clear: WatchState}, + "MULTI": {Set: MultiState}, + "EXEC": {Clear: WatchState | MultiState}, + "DISCARD": {Clear: WatchState | MultiState}, + "PSUBSCRIBE": {Set: SubscribeState}, + "SUBSCRIBE": {Set: SubscribeState}, + "MONITOR": {Set: MonitorState}, +} + +func LookupCommandInfo(commandName string) CommandInfo { + return commandInfos[strings.ToUpper(commandName)] +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/internal/redistest/testdb.go b/Godeps/_workspace/src/github.com/garyburd/redigo/internal/redistest/testdb.go new file mode 100644 index 00000000000..5f955c42448 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/internal/redistest/testdb.go @@ -0,0 +1,65 @@ +// Copyright 2014 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +// Package redistest contains utilities for writing Redigo tests. +package redistest + +import ( + "errors" + "time" + + "github.com/garyburd/redigo/redis" +) + +type testConn struct { + redis.Conn +} + +func (t testConn) Close() error { + _, err := t.Conn.Do("SELECT", "9") + if err != nil { + return nil + } + _, err = t.Conn.Do("FLUSHDB") + if err != nil { + return err + } + return t.Conn.Close() +} + +// Dial dials the local Redis server and selects database 9. To prevent +// stomping on real data, DialTestDB fails if database 9 contains data. The +// returned connection flushes database 9 on close. +func Dial() (redis.Conn, error) { + c, err := redis.DialTimeout("tcp", ":6379", 0, 1*time.Second, 1*time.Second) + if err != nil { + return nil, err + } + + _, err = c.Do("SELECT", "9") + if err != nil { + return nil, err + } + + n, err := redis.Int(c.Do("DBSIZE")) + if err != nil { + return nil, err + } + + if n != 0 { + return nil, errors.New("database #9 is not empty, test can not continue") + } + + return testConn{c}, nil +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/conn.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/conn.go new file mode 100644 index 00000000000..ac0e971c4ea --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/conn.go @@ -0,0 +1,455 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis + +import ( + "bufio" + "bytes" + "errors" + "fmt" + "io" + "net" + "strconv" + "sync" + "time" +) + +// conn is the low-level implementation of Conn +type conn struct { + + // Shared + mu sync.Mutex + pending int + err error + conn net.Conn + + // Read + readTimeout time.Duration + br *bufio.Reader + + // Write + writeTimeout time.Duration + bw *bufio.Writer + + // Scratch space for formatting argument length. + // '*' or '$', length, "\r\n" + lenScratch [32]byte + + // Scratch space for formatting integers and floats. + numScratch [40]byte +} + +// Dial connects to the Redis server at the given network and address. +func Dial(network, address string) (Conn, error) { + dialer := xDialer{} + return dialer.Dial(network, address) +} + +// DialTimeout acts like Dial but takes timeouts for establishing the +// connection to the server, writing a command and reading a reply. +func DialTimeout(network, address string, connectTimeout, readTimeout, writeTimeout time.Duration) (Conn, error) { + netDialer := net.Dialer{Timeout: connectTimeout} + dialer := xDialer{ + NetDial: netDialer.Dial, + ReadTimeout: readTimeout, + WriteTimeout: writeTimeout, + } + return dialer.Dial(network, address) +} + +// A Dialer specifies options for connecting to a Redis server. +type xDialer struct { + // NetDial specifies the dial function for creating TCP connections. If + // NetDial is nil, then net.Dial is used. + NetDial func(network, addr string) (net.Conn, error) + + // ReadTimeout specifies the timeout for reading a single command + // reply. If ReadTimeout is zero, then no timeout is used. + ReadTimeout time.Duration + + // WriteTimeout specifies the timeout for writing a single command. If + // WriteTimeout is zero, then no timeout is used. + WriteTimeout time.Duration +} + +// Dial connects to the Redis server at address on the named network. +func (d *xDialer) Dial(network, address string) (Conn, error) { + dial := d.NetDial + if dial == nil { + dial = net.Dial + } + netConn, err := dial(network, address) + if err != nil { + return nil, err + } + return &conn{ + conn: netConn, + bw: bufio.NewWriter(netConn), + br: bufio.NewReader(netConn), + readTimeout: d.ReadTimeout, + writeTimeout: d.WriteTimeout, + }, nil +} + +// NewConn returns a new Redigo connection for the given net connection. +func NewConn(netConn net.Conn, readTimeout, writeTimeout time.Duration) Conn { + return &conn{ + conn: netConn, + bw: bufio.NewWriter(netConn), + br: bufio.NewReader(netConn), + readTimeout: readTimeout, + writeTimeout: writeTimeout, + } +} + +func (c *conn) Close() error { + c.mu.Lock() + err := c.err + if c.err == nil { + c.err = errors.New("redigo: closed") + err = c.conn.Close() + } + c.mu.Unlock() + return err +} + +func (c *conn) fatal(err error) error { + c.mu.Lock() + if c.err == nil { + c.err = err + // Close connection to force errors on subsequent calls and to unblock + // other reader or writer. + c.conn.Close() + } + c.mu.Unlock() + return err +} + +func (c *conn) Err() error { + c.mu.Lock() + err := c.err + c.mu.Unlock() + return err +} + +func (c *conn) writeLen(prefix byte, n int) error { + c.lenScratch[len(c.lenScratch)-1] = '\n' + c.lenScratch[len(c.lenScratch)-2] = '\r' + i := len(c.lenScratch) - 3 + for { + c.lenScratch[i] = byte('0' + n%10) + i -= 1 + n = n / 10 + if n == 0 { + break + } + } + c.lenScratch[i] = prefix + _, err := c.bw.Write(c.lenScratch[i:]) + return err +} + +func (c *conn) writeString(s string) error { + c.writeLen('$', len(s)) + c.bw.WriteString(s) + _, err := c.bw.WriteString("\r\n") + return err +} + +func (c *conn) writeBytes(p []byte) error { + c.writeLen('$', len(p)) + c.bw.Write(p) + _, err := c.bw.WriteString("\r\n") + return err +} + +func (c *conn) writeInt64(n int64) error { + return c.writeBytes(strconv.AppendInt(c.numScratch[:0], n, 10)) +} + +func (c *conn) writeFloat64(n float64) error { + return c.writeBytes(strconv.AppendFloat(c.numScratch[:0], n, 'g', -1, 64)) +} + +func (c *conn) writeCommand(cmd string, args []interface{}) (err error) { + c.writeLen('*', 1+len(args)) + err = c.writeString(cmd) + for _, arg := range args { + if err != nil { + break + } + switch arg := arg.(type) { + case string: + err = c.writeString(arg) + case []byte: + err = c.writeBytes(arg) + case int: + err = c.writeInt64(int64(arg)) + case int64: + err = c.writeInt64(arg) + case float64: + err = c.writeFloat64(arg) + case bool: + if arg { + err = c.writeString("1") + } else { + err = c.writeString("0") + } + case nil: + err = c.writeString("") + default: + var buf bytes.Buffer + fmt.Fprint(&buf, arg) + err = c.writeBytes(buf.Bytes()) + } + } + return err +} + +type protocolError string + +func (pe protocolError) Error() string { + return fmt.Sprintf("redigo: %s (possible server error or unsupported concurrent read by application)", string(pe)) +} + +func (c *conn) readLine() ([]byte, error) { + p, err := c.br.ReadSlice('\n') + if err == bufio.ErrBufferFull { + return nil, protocolError("long response line") + } + if err != nil { + return nil, err + } + i := len(p) - 2 + if i < 0 || p[i] != '\r' { + return nil, protocolError("bad response line terminator") + } + return p[:i], nil +} + +// parseLen parses bulk string and array lengths. +func parseLen(p []byte) (int, error) { + if len(p) == 0 { + return -1, protocolError("malformed length") + } + + if p[0] == '-' && len(p) == 2 && p[1] == '1' { + // handle $-1 and $-1 null replies. + return -1, nil + } + + var n int + for _, b := range p { + n *= 10 + if b < '0' || b > '9' { + return -1, protocolError("illegal bytes in length") + } + n += int(b - '0') + } + + return n, nil +} + +// parseInt parses an integer reply. +func parseInt(p []byte) (interface{}, error) { + if len(p) == 0 { + return 0, protocolError("malformed integer") + } + + var negate bool + if p[0] == '-' { + negate = true + p = p[1:] + if len(p) == 0 { + return 0, protocolError("malformed integer") + } + } + + var n int64 + for _, b := range p { + n *= 10 + if b < '0' || b > '9' { + return 0, protocolError("illegal bytes in length") + } + n += int64(b - '0') + } + + if negate { + n = -n + } + return n, nil +} + +var ( + okReply interface{} = "OK" + pongReply interface{} = "PONG" +) + +func (c *conn) readReply() (interface{}, error) { + line, err := c.readLine() + if err != nil { + return nil, err + } + if len(line) == 0 { + return nil, protocolError("short response line") + } + switch line[0] { + case '+': + switch { + case len(line) == 3 && line[1] == 'O' && line[2] == 'K': + // Avoid allocation for frequent "+OK" response. + return okReply, nil + case len(line) == 5 && line[1] == 'P' && line[2] == 'O' && line[3] == 'N' && line[4] == 'G': + // Avoid allocation in PING command benchmarks :) + return pongReply, nil + default: + return string(line[1:]), nil + } + case '-': + return Error(string(line[1:])), nil + case ':': + return parseInt(line[1:]) + case '$': + n, err := parseLen(line[1:]) + if n < 0 || err != nil { + return nil, err + } + p := make([]byte, n) + _, err = io.ReadFull(c.br, p) + if err != nil { + return nil, err + } + if line, err := c.readLine(); err != nil { + return nil, err + } else if len(line) != 0 { + return nil, protocolError("bad bulk string format") + } + return p, nil + case '*': + n, err := parseLen(line[1:]) + if n < 0 || err != nil { + return nil, err + } + r := make([]interface{}, n) + for i := range r { + r[i], err = c.readReply() + if err != nil { + return nil, err + } + } + return r, nil + } + return nil, protocolError("unexpected response line") +} + +func (c *conn) Send(cmd string, args ...interface{}) error { + c.mu.Lock() + c.pending += 1 + c.mu.Unlock() + if c.writeTimeout != 0 { + c.conn.SetWriteDeadline(time.Now().Add(c.writeTimeout)) + } + if err := c.writeCommand(cmd, args); err != nil { + return c.fatal(err) + } + return nil +} + +func (c *conn) Flush() error { + if c.writeTimeout != 0 { + c.conn.SetWriteDeadline(time.Now().Add(c.writeTimeout)) + } + if err := c.bw.Flush(); err != nil { + return c.fatal(err) + } + return nil +} + +func (c *conn) Receive() (reply interface{}, err error) { + if c.readTimeout != 0 { + c.conn.SetReadDeadline(time.Now().Add(c.readTimeout)) + } + if reply, err = c.readReply(); err != nil { + return nil, c.fatal(err) + } + // When using pub/sub, the number of receives can be greater than the + // number of sends. To enable normal use of the connection after + // unsubscribing from all channels, we do not decrement pending to a + // negative value. + // + // The pending field is decremented after the reply is read to handle the + // case where Receive is called before Send. + c.mu.Lock() + if c.pending > 0 { + c.pending -= 1 + } + c.mu.Unlock() + if err, ok := reply.(Error); ok { + return nil, err + } + return +} + +func (c *conn) Do(cmd string, args ...interface{}) (interface{}, error) { + c.mu.Lock() + pending := c.pending + c.pending = 0 + c.mu.Unlock() + + if cmd == "" && pending == 0 { + return nil, nil + } + + if c.writeTimeout != 0 { + c.conn.SetWriteDeadline(time.Now().Add(c.writeTimeout)) + } + + if cmd != "" { + c.writeCommand(cmd, args) + } + + if err := c.bw.Flush(); err != nil { + return nil, c.fatal(err) + } + + if c.readTimeout != 0 { + c.conn.SetReadDeadline(time.Now().Add(c.readTimeout)) + } + + if cmd == "" { + reply := make([]interface{}, pending) + for i := range reply { + r, e := c.readReply() + if e != nil { + return nil, c.fatal(e) + } + reply[i] = r + } + return reply, nil + } + + var err error + var reply interface{} + for i := 0; i <= pending; i++ { + var e error + if reply, e = c.readReply(); e != nil { + return nil, c.fatal(e) + } + if e, ok := reply.(Error); ok && err == nil { + err = e + } + } + return reply, err +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/conn_test.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/conn_test.go new file mode 100644 index 00000000000..800370136eb --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/conn_test.go @@ -0,0 +1,542 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis_test + +import ( + "bufio" + "bytes" + "math" + "net" + "reflect" + "strings" + "testing" + "time" + + "github.com/garyburd/redigo/internal/redistest" + "github.com/garyburd/redigo/redis" +) + +var writeTests = []struct { + args []interface{} + expected string +}{ + { + []interface{}{"SET", "key", "value"}, + "*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$5\r\nvalue\r\n", + }, + { + []interface{}{"SET", "key", "value"}, + "*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$5\r\nvalue\r\n", + }, + { + []interface{}{"SET", "key", byte(100)}, + "*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$3\r\n100\r\n", + }, + { + []interface{}{"SET", "key", 100}, + "*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$3\r\n100\r\n", + }, + { + []interface{}{"SET", "key", int64(math.MinInt64)}, + "*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$20\r\n-9223372036854775808\r\n", + }, + { + []interface{}{"SET", "key", float64(1349673917.939762)}, + "*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$21\r\n1.349673917939762e+09\r\n", + }, + { + []interface{}{"SET", "key", ""}, + "*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$0\r\n\r\n", + }, + { + []interface{}{"SET", "key", nil}, + "*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$0\r\n\r\n", + }, + { + []interface{}{"ECHO", true, false}, + "*3\r\n$4\r\nECHO\r\n$1\r\n1\r\n$1\r\n0\r\n", + }, +} + +func TestWrite(t *testing.T) { + for _, tt := range writeTests { + var buf bytes.Buffer + rw := bufio.ReadWriter{Writer: bufio.NewWriter(&buf)} + c := redis.NewConnBufio(rw) + err := c.Send(tt.args[0].(string), tt.args[1:]...) + if err != nil { + t.Errorf("Send(%v) returned error %v", tt.args, err) + continue + } + rw.Flush() + actual := buf.String() + if actual != tt.expected { + t.Errorf("Send(%v) = %q, want %q", tt.args, actual, tt.expected) + } + } +} + +var errorSentinel = &struct{}{} + +var readTests = []struct { + reply string + expected interface{} +}{ + { + "+OK\r\n", + "OK", + }, + { + "+PONG\r\n", + "PONG", + }, + { + "@OK\r\n", + errorSentinel, + }, + { + "$6\r\nfoobar\r\n", + []byte("foobar"), + }, + { + "$-1\r\n", + nil, + }, + { + ":1\r\n", + int64(1), + }, + { + ":-2\r\n", + int64(-2), + }, + { + "*0\r\n", + []interface{}{}, + }, + { + "*-1\r\n", + nil, + }, + { + "*4\r\n$3\r\nfoo\r\n$3\r\nbar\r\n$5\r\nHello\r\n$5\r\nWorld\r\n", + []interface{}{[]byte("foo"), []byte("bar"), []byte("Hello"), []byte("World")}, + }, + { + "*3\r\n$3\r\nfoo\r\n$-1\r\n$3\r\nbar\r\n", + []interface{}{[]byte("foo"), nil, []byte("bar")}, + }, + + { + // "x" is not a valid length + "$x\r\nfoobar\r\n", + errorSentinel, + }, + { + // -2 is not a valid length + "$-2\r\n", + errorSentinel, + }, + { + // "x" is not a valid integer + ":x\r\n", + errorSentinel, + }, + { + // missing \r\n following value + "$6\r\nfoobar", + errorSentinel, + }, + { + // short value + "$6\r\nxx", + errorSentinel, + }, + { + // long value + "$6\r\nfoobarx\r\n", + errorSentinel, + }, +} + +func TestRead(t *testing.T) { + for _, tt := range readTests { + rw := bufio.ReadWriter{ + Reader: bufio.NewReader(strings.NewReader(tt.reply)), + Writer: bufio.NewWriter(nil), // writer need to support Flush + } + c := redis.NewConnBufio(rw) + actual, err := c.Receive() + if tt.expected == errorSentinel { + if err == nil { + t.Errorf("Receive(%q) did not return expected error", tt.reply) + } + } else { + if err != nil { + t.Errorf("Receive(%q) returned error %v", tt.reply, err) + continue + } + if !reflect.DeepEqual(actual, tt.expected) { + t.Errorf("Receive(%q) = %v, want %v", tt.reply, actual, tt.expected) + } + } + } +} + +var testCommands = []struct { + args []interface{} + expected interface{} +}{ + { + []interface{}{"PING"}, + "PONG", + }, + { + []interface{}{"SET", "foo", "bar"}, + "OK", + }, + { + []interface{}{"GET", "foo"}, + []byte("bar"), + }, + { + []interface{}{"GET", "nokey"}, + nil, + }, + { + []interface{}{"MGET", "nokey", "foo"}, + []interface{}{nil, []byte("bar")}, + }, + { + []interface{}{"INCR", "mycounter"}, + int64(1), + }, + { + []interface{}{"LPUSH", "mylist", "foo"}, + int64(1), + }, + { + []interface{}{"LPUSH", "mylist", "bar"}, + int64(2), + }, + { + []interface{}{"LRANGE", "mylist", 0, -1}, + []interface{}{[]byte("bar"), []byte("foo")}, + }, + { + []interface{}{"MULTI"}, + "OK", + }, + { + []interface{}{"LRANGE", "mylist", 0, -1}, + "QUEUED", + }, + { + []interface{}{"PING"}, + "QUEUED", + }, + { + []interface{}{"EXEC"}, + []interface{}{ + []interface{}{[]byte("bar"), []byte("foo")}, + "PONG", + }, + }, +} + +func TestDoCommands(t *testing.T) { + c, err := redistest.Dial() + if err != nil { + t.Fatalf("error connection to database, %v", err) + } + defer c.Close() + + for _, cmd := range testCommands { + actual, err := c.Do(cmd.args[0].(string), cmd.args[1:]...) + if err != nil { + t.Errorf("Do(%v) returned error %v", cmd.args, err) + continue + } + if !reflect.DeepEqual(actual, cmd.expected) { + t.Errorf("Do(%v) = %v, want %v", cmd.args, actual, cmd.expected) + } + } +} + +func TestPipelineCommands(t *testing.T) { + c, err := redistest.Dial() + if err != nil { + t.Fatalf("error connection to database, %v", err) + } + defer c.Close() + + for _, cmd := range testCommands { + if err := c.Send(cmd.args[0].(string), cmd.args[1:]...); err != nil { + t.Fatalf("Send(%v) returned error %v", cmd.args, err) + } + } + if err := c.Flush(); err != nil { + t.Errorf("Flush() returned error %v", err) + } + for _, cmd := range testCommands { + actual, err := c.Receive() + if err != nil { + t.Fatalf("Receive(%v) returned error %v", cmd.args, err) + } + if !reflect.DeepEqual(actual, cmd.expected) { + t.Errorf("Receive(%v) = %v, want %v", cmd.args, actual, cmd.expected) + } + } +} + +func TestBlankCommmand(t *testing.T) { + c, err := redistest.Dial() + if err != nil { + t.Fatalf("error connection to database, %v", err) + } + defer c.Close() + + for _, cmd := range testCommands { + if err := c.Send(cmd.args[0].(string), cmd.args[1:]...); err != nil { + t.Fatalf("Send(%v) returned error %v", cmd.args, err) + } + } + reply, err := redis.Values(c.Do("")) + if err != nil { + t.Fatalf("Do() returned error %v", err) + } + if len(reply) != len(testCommands) { + t.Fatalf("len(reply)=%d, want %d", len(reply), len(testCommands)) + } + for i, cmd := range testCommands { + actual := reply[i] + if !reflect.DeepEqual(actual, cmd.expected) { + t.Errorf("Receive(%v) = %v, want %v", cmd.args, actual, cmd.expected) + } + } +} + +func TestRecvBeforeSend(t *testing.T) { + c, err := redistest.Dial() + if err != nil { + t.Fatalf("error connection to database, %v", err) + } + defer c.Close() + done := make(chan struct{}) + go func() { + c.Receive() + close(done) + }() + time.Sleep(time.Millisecond) + c.Send("PING") + c.Flush() + <-done + _, err = c.Do("") + if err != nil { + t.Fatalf("error=%v", err) + } +} + +func TestError(t *testing.T) { + c, err := redistest.Dial() + if err != nil { + t.Fatalf("error connection to database, %v", err) + } + defer c.Close() + + c.Do("SET", "key", "val") + _, err = c.Do("HSET", "key", "fld", "val") + if err == nil { + t.Errorf("Expected err for HSET on string key.") + } + if c.Err() != nil { + t.Errorf("Conn has Err()=%v, expect nil", c.Err()) + } + _, err = c.Do("SET", "key", "val") + if err != nil { + t.Errorf("Do(SET, key, val) returned error %v, expected nil.", err) + } +} + +func TestReadDeadline(t *testing.T) { + l, err := net.Listen("tcp", "127.0.0.1:0") + if err != nil { + t.Fatalf("net.Listen returned %v", err) + } + defer l.Close() + + go func() { + for { + c, err := l.Accept() + if err != nil { + return + } + go func() { + time.Sleep(time.Second) + c.Write([]byte("+OK\r\n")) + c.Close() + }() + } + }() + + c1, err := redis.DialTimeout(l.Addr().Network(), l.Addr().String(), 0, time.Millisecond, 0) + if err != nil { + t.Fatalf("redis.Dial returned %v", err) + } + defer c1.Close() + + _, err = c1.Do("PING") + if err == nil { + t.Fatalf("c1.Do() returned nil, expect error") + } + if c1.Err() == nil { + t.Fatalf("c1.Err() = nil, expect error") + } + + c2, err := redis.DialTimeout(l.Addr().Network(), l.Addr().String(), 0, time.Millisecond, 0) + if err != nil { + t.Fatalf("redis.Dial returned %v", err) + } + defer c2.Close() + + c2.Send("PING") + c2.Flush() + _, err = c2.Receive() + if err == nil { + t.Fatalf("c2.Receive() returned nil, expect error") + } + if c2.Err() == nil { + t.Fatalf("c2.Err() = nil, expect error") + } +} + +// Connect to local instance of Redis running on the default port. +func ExampleDial(x int) { + c, err := redis.Dial("tcp", ":6379") + if err != nil { + // handle error + } + defer c.Close() +} + +// TextExecError tests handling of errors in a transaction. See +// http://redis.io/topics/transactions for information on how Redis handles +// errors in a transaction. +func TestExecError(t *testing.T) { + c, err := redistest.Dial() + if err != nil { + t.Fatalf("error connection to database, %v", err) + } + defer c.Close() + + // Execute commands that fail before EXEC is called. + + c.Do("ZADD", "k0", 0, 0) + c.Send("MULTI") + c.Send("NOTACOMMAND", "k0", 0, 0) + c.Send("ZINCRBY", "k0", 0, 0) + v, err := c.Do("EXEC") + if err == nil { + t.Fatalf("EXEC returned values %v, expected error", v) + } + + // Execute commands that fail after EXEC is called. The first command + // returns an error. + + c.Do("ZADD", "k1", 0, 0) + c.Send("MULTI") + c.Send("HSET", "k1", 0, 0) + c.Send("ZINCRBY", "k1", 0, 0) + v, err = c.Do("EXEC") + if err != nil { + t.Fatalf("EXEC returned error %v", err) + } + + vs, err := redis.Values(v, nil) + if err != nil { + t.Fatalf("Values(v) returned error %v", err) + } + + if len(vs) != 2 { + t.Fatalf("len(vs) == %d, want 2", len(vs)) + } + + if _, ok := vs[0].(error); !ok { + t.Fatalf("first result is type %T, expected error", vs[0]) + } + + if _, ok := vs[1].([]byte); !ok { + t.Fatalf("second result is type %T, expected []byte", vs[2]) + } + + // Execute commands that fail after EXEC is called. The second command + // returns an error. + + c.Do("ZADD", "k2", 0, 0) + c.Send("MULTI") + c.Send("ZINCRBY", "k2", 0, 0) + c.Send("HSET", "k2", 0, 0) + v, err = c.Do("EXEC") + if err != nil { + t.Fatalf("EXEC returned error %v", err) + } + + vs, err = redis.Values(v, nil) + if err != nil { + t.Fatalf("Values(v) returned error %v", err) + } + + if len(vs) != 2 { + t.Fatalf("len(vs) == %d, want 2", len(vs)) + } + + if _, ok := vs[0].([]byte); !ok { + t.Fatalf("first result is type %T, expected []byte", vs[0]) + } + + if _, ok := vs[1].(error); !ok { + t.Fatalf("second result is type %T, expected error", vs[2]) + } +} + +func BenchmarkDoEmpty(b *testing.B) { + b.StopTimer() + c, err := redistest.Dial() + if err != nil { + b.Fatal(err) + } + defer c.Close() + b.StartTimer() + for i := 0; i < b.N; i++ { + if _, err := c.Do(""); err != nil { + b.Fatal(err) + } + } +} + +func BenchmarkDoPing(b *testing.B) { + b.StopTimer() + c, err := redistest.Dial() + if err != nil { + b.Fatal(err) + } + defer c.Close() + b.StartTimer() + for i := 0; i < b.N; i++ { + if _, err := c.Do("PING"); err != nil { + b.Fatal(err) + } + } +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/doc.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/doc.go new file mode 100644 index 00000000000..a5cd454af56 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/doc.go @@ -0,0 +1,169 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +// Package redis is a client for the Redis database. +// +// The Redigo FAQ (https://github.com/garyburd/redigo/wiki/FAQ) contains more +// documentation about this package. +// +// Connections +// +// The Conn interface is the primary interface for working with Redis. +// Applications create connections by calling the Dial, DialWithTimeout or +// NewConn functions. In the future, functions will be added for creating +// sharded and other types of connections. +// +// The application must call the connection Close method when the application +// is done with the connection. +// +// Executing Commands +// +// The Conn interface has a generic method for executing Redis commands: +// +// Do(commandName string, args ...interface{}) (reply interface{}, err error) +// +// The Redis command reference (http://redis.io/commands) lists the available +// commands. An example of using the Redis APPEND command is: +// +// n, err := conn.Do("APPEND", "key", "value") +// +// The Do method converts command arguments to binary strings for transmission +// to the server as follows: +// +// Go Type Conversion +// []byte Sent as is +// string Sent as is +// int, int64 strconv.FormatInt(v) +// float64 strconv.FormatFloat(v, 'g', -1, 64) +// bool true -> "1", false -> "0" +// nil "" +// all other types fmt.Print(v) +// +// Redis command reply types are represented using the following Go types: +// +// Redis type Go type +// error redis.Error +// integer int64 +// simple string string +// bulk string []byte or nil if value not present. +// array []interface{} or nil if value not present. +// +// Use type assertions or the reply helper functions to convert from +// interface{} to the specific Go type for the command result. +// +// Pipelining +// +// Connections support pipelining using the Send, Flush and Receive methods. +// +// Send(commandName string, args ...interface{}) error +// Flush() error +// Receive() (reply interface{}, err error) +// +// Send writes the command to the connection's output buffer. Flush flushes the +// connection's output buffer to the server. Receive reads a single reply from +// the server. The following example shows a simple pipeline. +// +// c.Send("SET", "foo", "bar") +// c.Send("GET", "foo") +// c.Flush() +// c.Receive() // reply from SET +// v, err = c.Receive() // reply from GET +// +// The Do method combines the functionality of the Send, Flush and Receive +// methods. The Do method starts by writing the command and flushing the output +// buffer. Next, the Do method receives all pending replies including the reply +// for the command just sent by Do. If any of the received replies is an error, +// then Do returns the error. If there are no errors, then Do returns the last +// reply. If the command argument to the Do method is "", then the Do method +// will flush the output buffer and receive pending replies without sending a +// command. +// +// Use the Send and Do methods to implement pipelined transactions. +// +// c.Send("MULTI") +// c.Send("INCR", "foo") +// c.Send("INCR", "bar") +// r, err := c.Do("EXEC") +// fmt.Println(r) // prints [1, 1] +// +// Concurrency +// +// Connections do not support concurrent calls to the write methods (Send, +// Flush) or concurrent calls to the read method (Receive). Connections do +// allow a concurrent reader and writer. +// +// Because the Do method combines the functionality of Send, Flush and Receive, +// the Do method cannot be called concurrently with the other methods. +// +// For full concurrent access to Redis, use the thread-safe Pool to get and +// release connections from within a goroutine. +// +// Publish and Subscribe +// +// Use the Send, Flush and Receive methods to implement Pub/Sub subscribers. +// +// c.Send("SUBSCRIBE", "example") +// c.Flush() +// for { +// reply, err := c.Receive() +// if err != nil { +// return err +// } +// // process pushed message +// } +// +// The PubSubConn type wraps a Conn with convenience methods for implementing +// subscribers. The Subscribe, PSubscribe, Unsubscribe and PUnsubscribe methods +// send and flush a subscription management command. The receive method +// converts a pushed message to convenient types for use in a type switch. +// +// psc := redis.PubSubConn{c} +// psc.Subscribe("example") +// for { +// switch v := psc.Receive().(type) { +// case redis.Message: +// fmt.Printf("%s: message: %s\n", v.Channel, v.Data) +// case redis.Subscription: +// fmt.Printf("%s: %s %d\n", v.Channel, v.Kind, v.Count) +// case error: +// return v +// } +// } +// +// Reply Helpers +// +// The Bool, Int, Bytes, String, Strings and Values functions convert a reply +// to a value of a specific type. To allow convenient wrapping of calls to the +// connection Do and Receive methods, the functions take a second argument of +// type error. If the error is non-nil, then the helper function returns the +// error. If the error is nil, the function converts the reply to the specified +// type: +// +// exists, err := redis.Bool(c.Do("EXISTS", "foo")) +// if err != nil { +// // handle error return from c.Do or type conversion error. +// } +// +// The Scan function converts elements of a array reply to Go types: +// +// var value1 int +// var value2 string +// reply, err := redis.Values(c.Do("MGET", "key1", "key2")) +// if err != nil { +// // handle error +// } +// if _, err := redis.Scan(reply, &value1, &value2); err != nil { +// // handle error +// } +package redis // import "github.com/garyburd/redigo/redis" diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/log.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/log.go new file mode 100644 index 00000000000..129b86d6708 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/log.go @@ -0,0 +1,117 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis + +import ( + "bytes" + "fmt" + "log" +) + +// NewLoggingConn returns a logging wrapper around a connection. +func NewLoggingConn(conn Conn, logger *log.Logger, prefix string) Conn { + if prefix != "" { + prefix = prefix + "." + } + return &loggingConn{conn, logger, prefix} +} + +type loggingConn struct { + Conn + logger *log.Logger + prefix string +} + +func (c *loggingConn) Close() error { + err := c.Conn.Close() + var buf bytes.Buffer + fmt.Fprintf(&buf, "%sClose() -> (%v)", c.prefix, err) + c.logger.Output(2, buf.String()) + return err +} + +func (c *loggingConn) printValue(buf *bytes.Buffer, v interface{}) { + const chop = 32 + switch v := v.(type) { + case []byte: + if len(v) > chop { + fmt.Fprintf(buf, "%q...", v[:chop]) + } else { + fmt.Fprintf(buf, "%q", v) + } + case string: + if len(v) > chop { + fmt.Fprintf(buf, "%q...", v[:chop]) + } else { + fmt.Fprintf(buf, "%q", v) + } + case []interface{}: + if len(v) == 0 { + buf.WriteString("[]") + } else { + sep := "[" + fin := "]" + if len(v) > chop { + v = v[:chop] + fin = "...]" + } + for _, vv := range v { + buf.WriteString(sep) + c.printValue(buf, vv) + sep = ", " + } + buf.WriteString(fin) + } + default: + fmt.Fprint(buf, v) + } +} + +func (c *loggingConn) print(method, commandName string, args []interface{}, reply interface{}, err error) { + var buf bytes.Buffer + fmt.Fprintf(&buf, "%s%s(", c.prefix, method) + if method != "Receive" { + buf.WriteString(commandName) + for _, arg := range args { + buf.WriteString(", ") + c.printValue(&buf, arg) + } + } + buf.WriteString(") -> (") + if method != "Send" { + c.printValue(&buf, reply) + buf.WriteString(", ") + } + fmt.Fprintf(&buf, "%v)", err) + c.logger.Output(3, buf.String()) +} + +func (c *loggingConn) Do(commandName string, args ...interface{}) (interface{}, error) { + reply, err := c.Conn.Do(commandName, args...) + c.print("Do", commandName, args, reply, err) + return reply, err +} + +func (c *loggingConn) Send(commandName string, args ...interface{}) error { + err := c.Conn.Send(commandName, args...) + c.print("Send", commandName, args, nil, err) + return err +} + +func (c *loggingConn) Receive() (interface{}, error) { + reply, err := c.Conn.Receive() + c.print("Receive", "", nil, reply, err) + return reply, err +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/pool.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/pool.go new file mode 100644 index 00000000000..9daf2e33ff3 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/pool.go @@ -0,0 +1,389 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis + +import ( + "bytes" + "container/list" + "crypto/rand" + "crypto/sha1" + "errors" + "io" + "strconv" + "sync" + "time" + + "github.com/garyburd/redigo/internal" +) + +var nowFunc = time.Now // for testing + +// ErrPoolExhausted is returned from a pool connection method (Do, Send, +// Receive, Flush, Err) when the maximum number of database connections in the +// pool has been reached. +var ErrPoolExhausted = errors.New("redigo: connection pool exhausted") + +var ( + errPoolClosed = errors.New("redigo: connection pool closed") + errConnClosed = errors.New("redigo: connection closed") +) + +// Pool maintains a pool of connections. The application calls the Get method +// to get a connection from the pool and the connection's Close method to +// return the connection's resources to the pool. +// +// The following example shows how to use a pool in a web application. The +// application creates a pool at application startup and makes it available to +// request handlers using a global variable. +// +// func newPool(server, password string) *redis.Pool { +// return &redis.Pool{ +// MaxIdle: 3, +// IdleTimeout: 240 * time.Second, +// Dial: func () (redis.Conn, error) { +// c, err := redis.Dial("tcp", server) +// if err != nil { +// return nil, err +// } +// if _, err := c.Do("AUTH", password); err != nil { +// c.Close() +// return nil, err +// } +// return c, err +// }, +// TestOnBorrow: func(c redis.Conn, t time.Time) error { +// _, err := c.Do("PING") +// return err +// }, +// } +// } +// +// var ( +// pool *redis.Pool +// redisServer = flag.String("redisServer", ":6379", "") +// redisPassword = flag.String("redisPassword", "", "") +// ) +// +// func main() { +// flag.Parse() +// pool = newPool(*redisServer, *redisPassword) +// ... +// } +// +// A request handler gets a connection from the pool and closes the connection +// when the handler is done: +// +// func serveHome(w http.ResponseWriter, r *http.Request) { +// conn := pool.Get() +// defer conn.Close() +// .... +// } +// +type Pool struct { + + // Dial is an application supplied function for creating and configuring a + // connection + Dial func() (Conn, error) + + // TestOnBorrow is an optional application supplied function for checking + // the health of an idle connection before the connection is used again by + // the application. Argument t is the time that the connection was returned + // to the pool. If the function returns an error, then the connection is + // closed. + TestOnBorrow func(c Conn, t time.Time) error + + // Maximum number of idle connections in the pool. + MaxIdle int + + // Maximum number of connections allocated by the pool at a given time. + // When zero, there is no limit on the number of connections in the pool. + MaxActive int + + // Close connections after remaining idle for this duration. If the value + // is zero, then idle connections are not closed. Applications should set + // the timeout to a value less than the server's timeout. + IdleTimeout time.Duration + + // If Wait is true and the pool is at the MaxIdle limit, then Get() waits + // for a connection to be returned to the pool before returning. + Wait bool + + // mu protects fields defined below. + mu sync.Mutex + cond *sync.Cond + closed bool + active int + + // Stack of idleConn with most recently used at the front. + idle list.List +} + +type idleConn struct { + c Conn + t time.Time +} + +// NewPool creates a new pool. This function is deprecated. Applications should +// initialize the Pool fields directly as shown in example. +func NewPool(newFn func() (Conn, error), maxIdle int) *Pool { + return &Pool{Dial: newFn, MaxIdle: maxIdle} +} + +// Get gets a connection. The application must close the returned connection. +// This method always returns a valid connection so that applications can defer +// error handling to the first use of the connection. If there is an error +// getting an underlying connection, then the connection Err, Do, Send, Flush +// and Receive methods return that error. +func (p *Pool) Get() Conn { + c, err := p.get() + if err != nil { + return errorConnection{err} + } + return &pooledConnection{p: p, c: c} +} + +// ActiveCount returns the number of active connections in the pool. +func (p *Pool) ActiveCount() int { + p.mu.Lock() + active := p.active + p.mu.Unlock() + return active +} + +// Close releases the resources used by the pool. +func (p *Pool) Close() error { + p.mu.Lock() + idle := p.idle + p.idle.Init() + p.closed = true + p.active -= idle.Len() + if p.cond != nil { + p.cond.Broadcast() + } + p.mu.Unlock() + for e := idle.Front(); e != nil; e = e.Next() { + e.Value.(idleConn).c.Close() + } + return nil +} + +// release decrements the active count and signals waiters. The caller must +// hold p.mu during the call. +func (p *Pool) release() { + p.active -= 1 + if p.cond != nil { + p.cond.Signal() + } +} + +// get prunes stale connections and returns a connection from the idle list or +// creates a new connection. +func (p *Pool) get() (Conn, error) { + p.mu.Lock() + + // Prune stale connections. + + if timeout := p.IdleTimeout; timeout > 0 { + for i, n := 0, p.idle.Len(); i < n; i++ { + e := p.idle.Back() + if e == nil { + break + } + ic := e.Value.(idleConn) + if ic.t.Add(timeout).After(nowFunc()) { + break + } + p.idle.Remove(e) + p.release() + p.mu.Unlock() + ic.c.Close() + p.mu.Lock() + } + } + + for { + + // Get idle connection. + + for i, n := 0, p.idle.Len(); i < n; i++ { + e := p.idle.Front() + if e == nil { + break + } + ic := e.Value.(idleConn) + p.idle.Remove(e) + test := p.TestOnBorrow + p.mu.Unlock() + if test == nil || test(ic.c, ic.t) == nil { + return ic.c, nil + } + ic.c.Close() + p.mu.Lock() + p.release() + } + + // Check for pool closed before dialing a new connection. + + if p.closed { + p.mu.Unlock() + return nil, errors.New("redigo: get on closed pool") + } + + // Dial new connection if under limit. + + if p.MaxActive == 0 || p.active < p.MaxActive { + dial := p.Dial + p.active += 1 + p.mu.Unlock() + c, err := dial() + if err != nil { + p.mu.Lock() + p.release() + p.mu.Unlock() + c = nil + } + return c, err + } + + if !p.Wait { + p.mu.Unlock() + return nil, ErrPoolExhausted + } + + if p.cond == nil { + p.cond = sync.NewCond(&p.mu) + } + p.cond.Wait() + } +} + +func (p *Pool) put(c Conn, forceClose bool) error { + err := c.Err() + p.mu.Lock() + if !p.closed && err == nil && !forceClose { + p.idle.PushFront(idleConn{t: nowFunc(), c: c}) + if p.idle.Len() > p.MaxIdle { + c = p.idle.Remove(p.idle.Back()).(idleConn).c + } else { + c = nil + } + } + + if c == nil { + if p.cond != nil { + p.cond.Signal() + } + p.mu.Unlock() + return nil + } + + p.release() + p.mu.Unlock() + return c.Close() +} + +type pooledConnection struct { + p *Pool + c Conn + state int +} + +var ( + sentinel []byte + sentinelOnce sync.Once +) + +func initSentinel() { + p := make([]byte, 64) + if _, err := rand.Read(p); err == nil { + sentinel = p + } else { + h := sha1.New() + io.WriteString(h, "Oops, rand failed. Use time instead.") + io.WriteString(h, strconv.FormatInt(time.Now().UnixNano(), 10)) + sentinel = h.Sum(nil) + } +} + +func (pc *pooledConnection) Close() error { + c := pc.c + if _, ok := c.(errorConnection); ok { + return nil + } + pc.c = errorConnection{errConnClosed} + + if pc.state&internal.MultiState != 0 { + c.Send("DISCARD") + pc.state &^= (internal.MultiState | internal.WatchState) + } else if pc.state&internal.WatchState != 0 { + c.Send("UNWATCH") + pc.state &^= internal.WatchState + } + if pc.state&internal.SubscribeState != 0 { + c.Send("UNSUBSCRIBE") + c.Send("PUNSUBSCRIBE") + // To detect the end of the message stream, ask the server to echo + // a sentinel value and read until we see that value. + sentinelOnce.Do(initSentinel) + c.Send("ECHO", sentinel) + c.Flush() + for { + p, err := c.Receive() + if err != nil { + break + } + if p, ok := p.([]byte); ok && bytes.Equal(p, sentinel) { + pc.state &^= internal.SubscribeState + break + } + } + } + c.Do("") + pc.p.put(c, pc.state != 0) + return nil +} + +func (pc *pooledConnection) Err() error { + return pc.c.Err() +} + +func (pc *pooledConnection) Do(commandName string, args ...interface{}) (reply interface{}, err error) { + ci := internal.LookupCommandInfo(commandName) + pc.state = (pc.state | ci.Set) &^ ci.Clear + return pc.c.Do(commandName, args...) +} + +func (pc *pooledConnection) Send(commandName string, args ...interface{}) error { + ci := internal.LookupCommandInfo(commandName) + pc.state = (pc.state | ci.Set) &^ ci.Clear + return pc.c.Send(commandName, args...) +} + +func (pc *pooledConnection) Flush() error { + return pc.c.Flush() +} + +func (pc *pooledConnection) Receive() (reply interface{}, err error) { + return pc.c.Receive() +} + +type errorConnection struct{ err error } + +func (ec errorConnection) Do(string, ...interface{}) (interface{}, error) { return nil, ec.err } +func (ec errorConnection) Send(string, ...interface{}) error { return ec.err } +func (ec errorConnection) Err() error { return ec.err } +func (ec errorConnection) Close() error { return ec.err } +func (ec errorConnection) Flush() error { return ec.err } +func (ec errorConnection) Receive() (interface{}, error) { return nil, ec.err } diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/pool_test.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/pool_test.go new file mode 100644 index 00000000000..1fe305f1685 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/pool_test.go @@ -0,0 +1,674 @@ +// Copyright 2011 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis_test + +import ( + "errors" + "io" + "reflect" + "sync" + "testing" + "time" + + "github.com/garyburd/redigo/internal/redistest" + "github.com/garyburd/redigo/redis" +) + +type poolTestConn struct { + d *poolDialer + err error + redis.Conn +} + +func (c *poolTestConn) Close() error { c.d.open -= 1; return nil } +func (c *poolTestConn) Err() error { return c.err } + +func (c *poolTestConn) Do(commandName string, args ...interface{}) (reply interface{}, err error) { + if commandName == "ERR" { + c.err = args[0].(error) + commandName = "PING" + } + if commandName != "" { + c.d.commands = append(c.d.commands, commandName) + } + return c.Conn.Do(commandName, args...) +} + +func (c *poolTestConn) Send(commandName string, args ...interface{}) error { + c.d.commands = append(c.d.commands, commandName) + return c.Conn.Send(commandName, args...) +} + +type poolDialer struct { + t *testing.T + dialed int + open int + commands []string + dialErr error +} + +func (d *poolDialer) dial() (redis.Conn, error) { + d.dialed += 1 + if d.dialErr != nil { + return nil, d.dialErr + } + c, err := redistest.Dial() + if err != nil { + return nil, err + } + d.open += 1 + return &poolTestConn{d: d, Conn: c}, nil +} + +func (d *poolDialer) check(message string, p *redis.Pool, dialed, open int) { + if d.dialed != dialed { + d.t.Errorf("%s: dialed=%d, want %d", message, d.dialed, dialed) + } + if d.open != open { + d.t.Errorf("%s: open=%d, want %d", message, d.open, open) + } + if active := p.ActiveCount(); active != open { + d.t.Errorf("%s: active=%d, want %d", message, active, open) + } +} + +func TestPoolReuse(t *testing.T) { + d := poolDialer{t: t} + p := &redis.Pool{ + MaxIdle: 2, + Dial: d.dial, + } + + for i := 0; i < 10; i++ { + c1 := p.Get() + c1.Do("PING") + c2 := p.Get() + c2.Do("PING") + c1.Close() + c2.Close() + } + + d.check("before close", p, 2, 2) + p.Close() + d.check("after close", p, 2, 0) +} + +func TestPoolMaxIdle(t *testing.T) { + d := poolDialer{t: t} + p := &redis.Pool{ + MaxIdle: 2, + Dial: d.dial, + } + for i := 0; i < 10; i++ { + c1 := p.Get() + c1.Do("PING") + c2 := p.Get() + c2.Do("PING") + c3 := p.Get() + c3.Do("PING") + c1.Close() + c2.Close() + c3.Close() + } + d.check("before close", p, 12, 2) + p.Close() + d.check("after close", p, 12, 0) +} + +func TestPoolError(t *testing.T) { + d := poolDialer{t: t} + p := &redis.Pool{ + MaxIdle: 2, + Dial: d.dial, + } + + c := p.Get() + c.Do("ERR", io.EOF) + if c.Err() == nil { + t.Errorf("expected c.Err() != nil") + } + c.Close() + + c = p.Get() + c.Do("ERR", io.EOF) + c.Close() + + d.check(".", p, 2, 0) +} + +func TestPoolClose(t *testing.T) { + d := poolDialer{t: t} + p := &redis.Pool{ + MaxIdle: 2, + Dial: d.dial, + } + + c1 := p.Get() + c1.Do("PING") + c2 := p.Get() + c2.Do("PING") + c3 := p.Get() + c3.Do("PING") + + c1.Close() + if _, err := c1.Do("PING"); err == nil { + t.Errorf("expected error after connection closed") + } + + c2.Close() + c2.Close() + + p.Close() + + d.check("after pool close", p, 3, 1) + + if _, err := c1.Do("PING"); err == nil { + t.Errorf("expected error after connection and pool closed") + } + + c3.Close() + + d.check("after conn close", p, 3, 0) + + c1 = p.Get() + if _, err := c1.Do("PING"); err == nil { + t.Errorf("expected error after pool closed") + } +} + +func TestPoolTimeout(t *testing.T) { + d := poolDialer{t: t} + p := &redis.Pool{ + MaxIdle: 2, + IdleTimeout: 300 * time.Second, + Dial: d.dial, + } + + now := time.Now() + redis.SetNowFunc(func() time.Time { return now }) + defer redis.SetNowFunc(time.Now) + + c := p.Get() + c.Do("PING") + c.Close() + + d.check("1", p, 1, 1) + + now = now.Add(p.IdleTimeout) + + c = p.Get() + c.Do("PING") + c.Close() + + d.check("2", p, 2, 1) + + p.Close() +} + +func TestPoolConcurrenSendReceive(t *testing.T) { + p := &redis.Pool{ + Dial: redistest.Dial, + } + c := p.Get() + done := make(chan error, 1) + go func() { + _, err := c.Receive() + done <- err + }() + c.Send("PING") + c.Flush() + err := <-done + if err != nil { + t.Fatalf("Receive() returned error %v", err) + } + _, err = c.Do("") + if err != nil { + t.Fatalf("Do() returned error %v", err) + } + c.Close() + p.Close() +} + +func TestPoolBorrowCheck(t *testing.T) { + d := poolDialer{t: t} + p := &redis.Pool{ + MaxIdle: 2, + Dial: d.dial, + TestOnBorrow: func(redis.Conn, time.Time) error { return redis.Error("BLAH") }, + } + + for i := 0; i < 10; i++ { + c := p.Get() + c.Do("PING") + c.Close() + } + d.check("1", p, 10, 1) + p.Close() +} + +func TestPoolMaxActive(t *testing.T) { + d := poolDialer{t: t} + p := &redis.Pool{ + MaxIdle: 2, + MaxActive: 2, + Dial: d.dial, + } + c1 := p.Get() + c1.Do("PING") + c2 := p.Get() + c2.Do("PING") + + d.check("1", p, 2, 2) + + c3 := p.Get() + if _, err := c3.Do("PING"); err != redis.ErrPoolExhausted { + t.Errorf("expected pool exhausted") + } + + c3.Close() + d.check("2", p, 2, 2) + c2.Close() + d.check("3", p, 2, 2) + + c3 = p.Get() + if _, err := c3.Do("PING"); err != nil { + t.Errorf("expected good channel, err=%v", err) + } + c3.Close() + + d.check("4", p, 2, 2) + p.Close() +} + +func TestPoolMonitorCleanup(t *testing.T) { + d := poolDialer{t: t} + p := &redis.Pool{ + MaxIdle: 2, + MaxActive: 2, + Dial: d.dial, + } + c := p.Get() + c.Send("MONITOR") + c.Close() + + d.check("", p, 1, 0) + p.Close() +} + +func TestPoolPubSubCleanup(t *testing.T) { + d := poolDialer{t: t} + p := &redis.Pool{ + MaxIdle: 2, + MaxActive: 2, + Dial: d.dial, + } + + c := p.Get() + c.Send("SUBSCRIBE", "x") + c.Close() + + want := []string{"SUBSCRIBE", "UNSUBSCRIBE", "PUNSUBSCRIBE", "ECHO"} + if !reflect.DeepEqual(d.commands, want) { + t.Errorf("got commands %v, want %v", d.commands, want) + } + d.commands = nil + + c = p.Get() + c.Send("PSUBSCRIBE", "x*") + c.Close() + + want = []string{"PSUBSCRIBE", "UNSUBSCRIBE", "PUNSUBSCRIBE", "ECHO"} + if !reflect.DeepEqual(d.commands, want) { + t.Errorf("got commands %v, want %v", d.commands, want) + } + d.commands = nil + + p.Close() +} + +func TestPoolTransactionCleanup(t *testing.T) { + d := poolDialer{t: t} + p := &redis.Pool{ + MaxIdle: 2, + MaxActive: 2, + Dial: d.dial, + } + + c := p.Get() + c.Do("WATCH", "key") + c.Do("PING") + c.Close() + + want := []string{"WATCH", "PING", "UNWATCH"} + if !reflect.DeepEqual(d.commands, want) { + t.Errorf("got commands %v, want %v", d.commands, want) + } + d.commands = nil + + c = p.Get() + c.Do("WATCH", "key") + c.Do("UNWATCH") + c.Do("PING") + c.Close() + + want = []string{"WATCH", "UNWATCH", "PING"} + if !reflect.DeepEqual(d.commands, want) { + t.Errorf("got commands %v, want %v", d.commands, want) + } + d.commands = nil + + c = p.Get() + c.Do("WATCH", "key") + c.Do("MULTI") + c.Do("PING") + c.Close() + + want = []string{"WATCH", "MULTI", "PING", "DISCARD"} + if !reflect.DeepEqual(d.commands, want) { + t.Errorf("got commands %v, want %v", d.commands, want) + } + d.commands = nil + + c = p.Get() + c.Do("WATCH", "key") + c.Do("MULTI") + c.Do("DISCARD") + c.Do("PING") + c.Close() + + want = []string{"WATCH", "MULTI", "DISCARD", "PING"} + if !reflect.DeepEqual(d.commands, want) { + t.Errorf("got commands %v, want %v", d.commands, want) + } + d.commands = nil + + c = p.Get() + c.Do("WATCH", "key") + c.Do("MULTI") + c.Do("EXEC") + c.Do("PING") + c.Close() + + want = []string{"WATCH", "MULTI", "EXEC", "PING"} + if !reflect.DeepEqual(d.commands, want) { + t.Errorf("got commands %v, want %v", d.commands, want) + } + d.commands = nil + + p.Close() +} + +func startGoroutines(p *redis.Pool, cmd string, args ...interface{}) chan error { + errs := make(chan error, 10) + for i := 0; i < cap(errs); i++ { + go func() { + c := p.Get() + _, err := c.Do(cmd, args...) + errs <- err + c.Close() + }() + } + + // Wait for goroutines to block. + time.Sleep(time.Second / 4) + + return errs +} + +func TestWaitPool(t *testing.T) { + d := poolDialer{t: t} + p := &redis.Pool{ + MaxIdle: 1, + MaxActive: 1, + Dial: d.dial, + Wait: true, + } + defer p.Close() + c := p.Get() + errs := startGoroutines(p, "PING") + d.check("before close", p, 1, 1) + c.Close() + timeout := time.After(2 * time.Second) + for i := 0; i < cap(errs); i++ { + select { + case err := <-errs: + if err != nil { + t.Fatal(err) + } + case <-timeout: + t.Fatalf("timeout waiting for blocked goroutine %d", i) + } + } + d.check("done", p, 1, 1) +} + +func TestWaitPoolClose(t *testing.T) { + d := poolDialer{t: t} + p := &redis.Pool{ + MaxIdle: 1, + MaxActive: 1, + Dial: d.dial, + Wait: true, + } + c := p.Get() + if _, err := c.Do("PING"); err != nil { + t.Fatal(err) + } + errs := startGoroutines(p, "PING") + d.check("before close", p, 1, 1) + p.Close() + timeout := time.After(2 * time.Second) + for i := 0; i < cap(errs); i++ { + select { + case err := <-errs: + switch err { + case nil: + t.Fatal("blocked goroutine did not get error") + case redis.ErrPoolExhausted: + t.Fatal("blocked goroutine got pool exhausted error") + } + case <-timeout: + t.Fatal("timeout waiting for blocked goroutine") + } + } + c.Close() + d.check("done", p, 1, 0) +} + +func TestWaitPoolCommandError(t *testing.T) { + testErr := errors.New("test") + d := poolDialer{t: t} + p := &redis.Pool{ + MaxIdle: 1, + MaxActive: 1, + Dial: d.dial, + Wait: true, + } + defer p.Close() + c := p.Get() + errs := startGoroutines(p, "ERR", testErr) + d.check("before close", p, 1, 1) + c.Close() + timeout := time.After(2 * time.Second) + for i := 0; i < cap(errs); i++ { + select { + case err := <-errs: + if err != nil { + t.Fatal(err) + } + case <-timeout: + t.Fatalf("timeout waiting for blocked goroutine %d", i) + } + } + d.check("done", p, cap(errs), 0) +} + +func TestWaitPoolDialError(t *testing.T) { + testErr := errors.New("test") + d := poolDialer{t: t} + p := &redis.Pool{ + MaxIdle: 1, + MaxActive: 1, + Dial: d.dial, + Wait: true, + } + defer p.Close() + c := p.Get() + errs := startGoroutines(p, "ERR", testErr) + d.check("before close", p, 1, 1) + + d.dialErr = errors.New("dial") + c.Close() + + nilCount := 0 + errCount := 0 + timeout := time.After(2 * time.Second) + for i := 0; i < cap(errs); i++ { + select { + case err := <-errs: + switch err { + case nil: + nilCount++ + case d.dialErr: + errCount++ + default: + t.Fatalf("expected dial error or nil, got %v", err) + } + case <-timeout: + t.Fatalf("timeout waiting for blocked goroutine %d", i) + } + } + if nilCount != 1 { + t.Errorf("expected one nil error, got %d", nilCount) + } + if errCount != cap(errs)-1 { + t.Errorf("expected %d dial erors, got %d", cap(errs)-1, errCount) + } + d.check("done", p, cap(errs), 0) +} + +// Borrowing requires us to iterate over the idle connections, unlock the pool, +// and perform a blocking operation to check the connection still works. If +// TestOnBorrow fails, we must reacquire the lock and continue iteration. This +// test ensures that iteration will work correctly if multiple threads are +// iterating simultaneously. +func TestLocking_TestOnBorrowFails_PoolDoesntCrash(t *testing.T) { + count := 100 + + // First we'll Create a pool where the pilfering of idle connections fails. + d := poolDialer{t: t} + p := &redis.Pool{ + MaxIdle: count, + MaxActive: count, + Dial: d.dial, + TestOnBorrow: func(c redis.Conn, t time.Time) error { + return errors.New("No way back into the real world.") + }, + } + defer p.Close() + + // Fill the pool with idle connections. + b1 := sync.WaitGroup{} + b1.Add(count) + b2 := sync.WaitGroup{} + b2.Add(count) + for i := 0; i < count; i++ { + go func() { + c := p.Get() + if c.Err() != nil { + t.Errorf("pool get failed: %v", c.Err()) + } + b1.Done() + b1.Wait() + c.Close() + b2.Done() + }() + } + b2.Wait() + if d.dialed != count { + t.Errorf("Expected %d dials, got %d", count, d.dialed) + } + + // Spawn a bunch of goroutines to thrash the pool. + b2.Add(count) + for i := 0; i < count; i++ { + go func() { + c := p.Get() + if c.Err() != nil { + t.Errorf("pool get failed: %v", c.Err()) + } + c.Close() + b2.Done() + }() + } + b2.Wait() + if d.dialed != count*2 { + t.Errorf("Expected %d dials, got %d", count*2, d.dialed) + } +} + +func BenchmarkPoolGet(b *testing.B) { + b.StopTimer() + p := redis.Pool{Dial: redistest.Dial, MaxIdle: 2} + c := p.Get() + if err := c.Err(); err != nil { + b.Fatal(err) + } + c.Close() + defer p.Close() + b.StartTimer() + for i := 0; i < b.N; i++ { + c = p.Get() + c.Close() + } +} + +func BenchmarkPoolGetErr(b *testing.B) { + b.StopTimer() + p := redis.Pool{Dial: redistest.Dial, MaxIdle: 2} + c := p.Get() + if err := c.Err(); err != nil { + b.Fatal(err) + } + c.Close() + defer p.Close() + b.StartTimer() + for i := 0; i < b.N; i++ { + c = p.Get() + if err := c.Err(); err != nil { + b.Fatal(err) + } + c.Close() + } +} + +func BenchmarkPoolGetPing(b *testing.B) { + b.StopTimer() + p := redis.Pool{Dial: redistest.Dial, MaxIdle: 2} + c := p.Get() + if err := c.Err(); err != nil { + b.Fatal(err) + } + c.Close() + defer p.Close() + b.StartTimer() + for i := 0; i < b.N; i++ { + c = p.Get() + if _, err := c.Do("PING"); err != nil { + b.Fatal(err) + } + c.Close() + } +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/pubsub.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/pubsub.go new file mode 100644 index 00000000000..f0790429fd0 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/pubsub.go @@ -0,0 +1,129 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis + +import ( + "errors" +) + +// Subscription represents a subscribe or unsubscribe notification. +type Subscription struct { + + // Kind is "subscribe", "unsubscribe", "psubscribe" or "punsubscribe" + Kind string + + // The channel that was changed. + Channel string + + // The current number of subscriptions for connection. + Count int +} + +// Message represents a message notification. +type Message struct { + + // The originating channel. + Channel string + + // The message data. + Data []byte +} + +// PMessage represents a pmessage notification. +type PMessage struct { + + // The matched pattern. + Pattern string + + // The originating channel. + Channel string + + // The message data. + Data []byte +} + +// PubSubConn wraps a Conn with convenience methods for subscribers. +type PubSubConn struct { + Conn Conn +} + +// Close closes the connection. +func (c PubSubConn) Close() error { + return c.Conn.Close() +} + +// Subscribe subscribes the connection to the specified channels. +func (c PubSubConn) Subscribe(channel ...interface{}) error { + c.Conn.Send("SUBSCRIBE", channel...) + return c.Conn.Flush() +} + +// PSubscribe subscribes the connection to the given patterns. +func (c PubSubConn) PSubscribe(channel ...interface{}) error { + c.Conn.Send("PSUBSCRIBE", channel...) + return c.Conn.Flush() +} + +// Unsubscribe unsubscribes the connection from the given channels, or from all +// of them if none is given. +func (c PubSubConn) Unsubscribe(channel ...interface{}) error { + c.Conn.Send("UNSUBSCRIBE", channel...) + return c.Conn.Flush() +} + +// PUnsubscribe unsubscribes the connection from the given patterns, or from all +// of them if none is given. +func (c PubSubConn) PUnsubscribe(channel ...interface{}) error { + c.Conn.Send("PUNSUBSCRIBE", channel...) + return c.Conn.Flush() +} + +// Receive returns a pushed message as a Subscription, Message, PMessage or +// error. The return value is intended to be used directly in a type switch as +// illustrated in the PubSubConn example. +func (c PubSubConn) Receive() interface{} { + reply, err := Values(c.Conn.Receive()) + if err != nil { + return err + } + + var kind string + reply, err = Scan(reply, &kind) + if err != nil { + return err + } + + switch kind { + case "message": + var m Message + if _, err := Scan(reply, &m.Channel, &m.Data); err != nil { + return err + } + return m + case "pmessage": + var pm PMessage + if _, err := Scan(reply, &pm.Pattern, &pm.Channel, &pm.Data); err != nil { + return err + } + return pm + case "subscribe", "psubscribe", "unsubscribe", "punsubscribe": + s := Subscription{Kind: kind} + if _, err := Scan(reply, &s.Channel, &s.Count); err != nil { + return err + } + return s + } + return errors.New("redigo: unknown pubsub notification") +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/pubsub_test.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/pubsub_test.go new file mode 100644 index 00000000000..707f5a4706a --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/pubsub_test.go @@ -0,0 +1,143 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis_test + +import ( + "fmt" + "net" + "reflect" + "sync" + "testing" + "time" + + "github.com/garyburd/redigo/internal/redistest" + "github.com/garyburd/redigo/redis" +) + +func publish(channel, value interface{}) { + c, err := dial() + if err != nil { + panic(err) + } + defer c.Close() + c.Do("PUBLISH", channel, value) +} + +// Applications can receive pushed messages from one goroutine and manage subscriptions from another goroutine. +func ExamplePubSubConn() { + c, err := dial() + if err != nil { + panic(err) + } + defer c.Close() + var wg sync.WaitGroup + wg.Add(2) + + psc := redis.PubSubConn{Conn: c} + + // This goroutine receives and prints pushed notifications from the server. + // The goroutine exits when the connection is unsubscribed from all + // channels or there is an error. + go func() { + defer wg.Done() + for { + switch n := psc.Receive().(type) { + case redis.Message: + fmt.Printf("Message: %s %s\n", n.Channel, n.Data) + case redis.PMessage: + fmt.Printf("PMessage: %s %s %s\n", n.Pattern, n.Channel, n.Data) + case redis.Subscription: + fmt.Printf("Subscription: %s %s %d\n", n.Kind, n.Channel, n.Count) + if n.Count == 0 { + return + } + case error: + fmt.Printf("error: %v\n", n) + return + } + } + }() + + // This goroutine manages subscriptions for the connection. + go func() { + defer wg.Done() + + psc.Subscribe("example") + psc.PSubscribe("p*") + + // The following function calls publish a message using another + // connection to the Redis server. + publish("example", "hello") + publish("example", "world") + publish("pexample", "foo") + publish("pexample", "bar") + + // Unsubscribe from all connections. This will cause the receiving + // goroutine to exit. + psc.Unsubscribe() + psc.PUnsubscribe() + }() + + wg.Wait() + + // Output: + // Subscription: subscribe example 1 + // Subscription: psubscribe p* 2 + // Message: example hello + // Message: example world + // PMessage: p* pexample foo + // PMessage: p* pexample bar + // Subscription: unsubscribe example 1 + // Subscription: punsubscribe p* 0 +} + +func expectPushed(t *testing.T, c redis.PubSubConn, message string, expected interface{}) { + actual := c.Receive() + if !reflect.DeepEqual(actual, expected) { + t.Errorf("%s = %v, want %v", message, actual, expected) + } +} + +func TestPushed(t *testing.T) { + pc, err := redistest.Dial() + if err != nil { + t.Fatalf("error connection to database, %v", err) + } + defer pc.Close() + + nc, err := net.Dial("tcp", ":6379") + if err != nil { + t.Fatal(err) + } + defer nc.Close() + nc.SetReadDeadline(time.Now().Add(4 * time.Second)) + + c := redis.PubSubConn{Conn: redis.NewConn(nc, 0, 0)} + + c.Subscribe("c1") + expectPushed(t, c, "Subscribe(c1)", redis.Subscription{Kind: "subscribe", Channel: "c1", Count: 1}) + c.Subscribe("c2") + expectPushed(t, c, "Subscribe(c2)", redis.Subscription{Kind: "subscribe", Channel: "c2", Count: 2}) + c.PSubscribe("p1") + expectPushed(t, c, "PSubscribe(p1)", redis.Subscription{Kind: "psubscribe", Channel: "p1", Count: 3}) + c.PSubscribe("p2") + expectPushed(t, c, "PSubscribe(p2)", redis.Subscription{Kind: "psubscribe", Channel: "p2", Count: 4}) + c.PUnsubscribe() + expectPushed(t, c, "Punsubscribe(p1)", redis.Subscription{Kind: "punsubscribe", Channel: "p1", Count: 3}) + expectPushed(t, c, "Punsubscribe()", redis.Subscription{Kind: "punsubscribe", Channel: "p2", Count: 2}) + + pc.Do("PUBLISH", "c1", "hello") + expectPushed(t, c, "PUBLISH c1 hello", redis.Message{Channel: "c1", Data: []byte("hello")}) +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/redis.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/redis.go new file mode 100644 index 00000000000..c90a48ed44b --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/redis.go @@ -0,0 +1,44 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis + +// Error represents an error returned in a command reply. +type Error string + +func (err Error) Error() string { return string(err) } + +// Conn represents a connection to a Redis server. +type Conn interface { + // Close closes the connection. + Close() error + + // Err returns a non-nil value if the connection is broken. The returned + // value is either the first non-nil value returned from the underlying + // network connection or a protocol parsing error. Applications should + // close broken connections. + Err() error + + // Do sends a command to the server and returns the received reply. + Do(commandName string, args ...interface{}) (reply interface{}, err error) + + // Send writes the command to the client's output buffer. + Send(commandName string, args ...interface{}) error + + // Flush flushes the output buffer to the Redis server. + Flush() error + + // Receive receives a single reply from the Redis server + Receive() (reply interface{}, err error) +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/reply.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/reply.go new file mode 100644 index 00000000000..5648f930d67 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/reply.go @@ -0,0 +1,312 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis + +import ( + "errors" + "fmt" + "strconv" +) + +// ErrNil indicates that a reply value is nil. +var ErrNil = errors.New("redigo: nil returned") + +// Int is a helper that converts a command reply to an integer. If err is not +// equal to nil, then Int returns 0, err. Otherwise, Int converts the +// reply to an int as follows: +// +// Reply type Result +// integer int(reply), nil +// bulk string parsed reply, nil +// nil 0, ErrNil +// other 0, error +func Int(reply interface{}, err error) (int, error) { + if err != nil { + return 0, err + } + switch reply := reply.(type) { + case int64: + x := int(reply) + if int64(x) != reply { + return 0, strconv.ErrRange + } + return x, nil + case []byte: + n, err := strconv.ParseInt(string(reply), 10, 0) + return int(n), err + case nil: + return 0, ErrNil + case Error: + return 0, reply + } + return 0, fmt.Errorf("redigo: unexpected type for Int, got type %T", reply) +} + +// Int64 is a helper that converts a command reply to 64 bit integer. If err is +// not equal to nil, then Int returns 0, err. Otherwise, Int64 converts the +// reply to an int64 as follows: +// +// Reply type Result +// integer reply, nil +// bulk string parsed reply, nil +// nil 0, ErrNil +// other 0, error +func Int64(reply interface{}, err error) (int64, error) { + if err != nil { + return 0, err + } + switch reply := reply.(type) { + case int64: + return reply, nil + case []byte: + n, err := strconv.ParseInt(string(reply), 10, 64) + return n, err + case nil: + return 0, ErrNil + case Error: + return 0, reply + } + return 0, fmt.Errorf("redigo: unexpected type for Int64, got type %T", reply) +} + +var errNegativeInt = errors.New("redigo: unexpected value for Uint64") + +// Uint64 is a helper that converts a command reply to 64 bit integer. If err is +// not equal to nil, then Int returns 0, err. Otherwise, Int64 converts the +// reply to an int64 as follows: +// +// Reply type Result +// integer reply, nil +// bulk string parsed reply, nil +// nil 0, ErrNil +// other 0, error +func Uint64(reply interface{}, err error) (uint64, error) { + if err != nil { + return 0, err + } + switch reply := reply.(type) { + case int64: + if reply < 0 { + return 0, errNegativeInt + } + return uint64(reply), nil + case []byte: + n, err := strconv.ParseUint(string(reply), 10, 64) + return n, err + case nil: + return 0, ErrNil + case Error: + return 0, reply + } + return 0, fmt.Errorf("redigo: unexpected type for Uint64, got type %T", reply) +} + +// Float64 is a helper that converts a command reply to 64 bit float. If err is +// not equal to nil, then Float64 returns 0, err. Otherwise, Float64 converts +// the reply to an int as follows: +// +// Reply type Result +// bulk string parsed reply, nil +// nil 0, ErrNil +// other 0, error +func Float64(reply interface{}, err error) (float64, error) { + if err != nil { + return 0, err + } + switch reply := reply.(type) { + case []byte: + n, err := strconv.ParseFloat(string(reply), 64) + return n, err + case nil: + return 0, ErrNil + case Error: + return 0, reply + } + return 0, fmt.Errorf("redigo: unexpected type for Float64, got type %T", reply) +} + +// String is a helper that converts a command reply to a string. If err is not +// equal to nil, then String returns "", err. Otherwise String converts the +// reply to a string as follows: +// +// Reply type Result +// bulk string string(reply), nil +// simple string reply, nil +// nil "", ErrNil +// other "", error +func String(reply interface{}, err error) (string, error) { + if err != nil { + return "", err + } + switch reply := reply.(type) { + case []byte: + return string(reply), nil + case string: + return reply, nil + case nil: + return "", ErrNil + case Error: + return "", reply + } + return "", fmt.Errorf("redigo: unexpected type for String, got type %T", reply) +} + +// Bytes is a helper that converts a command reply to a slice of bytes. If err +// is not equal to nil, then Bytes returns nil, err. Otherwise Bytes converts +// the reply to a slice of bytes as follows: +// +// Reply type Result +// bulk string reply, nil +// simple string []byte(reply), nil +// nil nil, ErrNil +// other nil, error +func Bytes(reply interface{}, err error) ([]byte, error) { + if err != nil { + return nil, err + } + switch reply := reply.(type) { + case []byte: + return reply, nil + case string: + return []byte(reply), nil + case nil: + return nil, ErrNil + case Error: + return nil, reply + } + return nil, fmt.Errorf("redigo: unexpected type for Bytes, got type %T", reply) +} + +// Bool is a helper that converts a command reply to a boolean. If err is not +// equal to nil, then Bool returns false, err. Otherwise Bool converts the +// reply to boolean as follows: +// +// Reply type Result +// integer value != 0, nil +// bulk string strconv.ParseBool(reply) +// nil false, ErrNil +// other false, error +func Bool(reply interface{}, err error) (bool, error) { + if err != nil { + return false, err + } + switch reply := reply.(type) { + case int64: + return reply != 0, nil + case []byte: + return strconv.ParseBool(string(reply)) + case nil: + return false, ErrNil + case Error: + return false, reply + } + return false, fmt.Errorf("redigo: unexpected type for Bool, got type %T", reply) +} + +// MultiBulk is deprecated. Use Values. +func MultiBulk(reply interface{}, err error) ([]interface{}, error) { return Values(reply, err) } + +// Values is a helper that converts an array command reply to a []interface{}. +// If err is not equal to nil, then Values returns nil, err. Otherwise, Values +// converts the reply as follows: +// +// Reply type Result +// array reply, nil +// nil nil, ErrNil +// other nil, error +func Values(reply interface{}, err error) ([]interface{}, error) { + if err != nil { + return nil, err + } + switch reply := reply.(type) { + case []interface{}: + return reply, nil + case nil: + return nil, ErrNil + case Error: + return nil, reply + } + return nil, fmt.Errorf("redigo: unexpected type for Values, got type %T", reply) +} + +// Strings is a helper that converts an array command reply to a []string. If +// err is not equal to nil, then Strings returns nil, err. Nil array items are +// converted to "" in the output slice. Strings returns an error if an array +// item is not a bulk string or nil. +func Strings(reply interface{}, err error) ([]string, error) { + if err != nil { + return nil, err + } + switch reply := reply.(type) { + case []interface{}: + result := make([]string, len(reply)) + for i := range reply { + if reply[i] == nil { + continue + } + p, ok := reply[i].([]byte) + if !ok { + return nil, fmt.Errorf("redigo: unexpected element type for Strings, got type %T", reply[i]) + } + result[i] = string(p) + } + return result, nil + case nil: + return nil, ErrNil + case Error: + return nil, reply + } + return nil, fmt.Errorf("redigo: unexpected type for Strings, got type %T", reply) +} + +// Ints is a helper that converts an array command reply to a []int. If +// err is not equal to nil, then Ints returns nil, err. +func Ints(reply interface{}, err error) ([]int, error) { + var ints []int + if reply == nil { + return ints, ErrNil + } + values, err := Values(reply, err) + if err != nil { + return ints, err + } + if err := ScanSlice(values, &ints); err != nil { + return ints, err + } + return ints, nil +} + +// StringMap is a helper that converts an array of strings (alternating key, value) +// into a map[string]string. The HGETALL and CONFIG GET commands return replies in this format. +// Requires an even number of values in result. +func StringMap(result interface{}, err error) (map[string]string, error) { + values, err := Values(result, err) + if err != nil { + return nil, err + } + if len(values)%2 != 0 { + return nil, errors.New("redigo: StringMap expects even number of values result") + } + m := make(map[string]string, len(values)/2) + for i := 0; i < len(values); i += 2 { + key, okKey := values[i].([]byte) + value, okValue := values[i+1].([]byte) + if !okKey || !okValue { + return nil, errors.New("redigo: ScanMap key not a bulk string value") + } + m[string(key)] = string(value) + } + return m, nil +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/reply_test.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/reply_test.go new file mode 100644 index 00000000000..92744c590b6 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/reply_test.go @@ -0,0 +1,166 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis_test + +import ( + "fmt" + "reflect" + "testing" + + "github.com/garyburd/redigo/internal/redistest" + "github.com/garyburd/redigo/redis" +) + +type valueError struct { + v interface{} + err error +} + +func ve(v interface{}, err error) valueError { + return valueError{v, err} +} + +var replyTests = []struct { + name interface{} + actual valueError + expected valueError +}{ + { + "ints([v1, v2])", + ve(redis.Ints([]interface{}{[]byte("4"), []byte("5")}, nil)), + ve([]int{4, 5}, nil), + }, + { + "ints(nil)", + ve(redis.Ints(nil, nil)), + ve([]int(nil), redis.ErrNil), + }, + { + "strings([v1, v2])", + ve(redis.Strings([]interface{}{[]byte("v1"), []byte("v2")}, nil)), + ve([]string{"v1", "v2"}, nil), + }, + { + "strings(nil)", + ve(redis.Strings(nil, nil)), + ve([]string(nil), redis.ErrNil), + }, + { + "values([v1, v2])", + ve(redis.Values([]interface{}{[]byte("v1"), []byte("v2")}, nil)), + ve([]interface{}{[]byte("v1"), []byte("v2")}, nil), + }, + { + "values(nil)", + ve(redis.Values(nil, nil)), + ve([]interface{}(nil), redis.ErrNil), + }, + { + "float64(1.0)", + ve(redis.Float64([]byte("1.0"), nil)), + ve(float64(1.0), nil), + }, + { + "float64(nil)", + ve(redis.Float64(nil, nil)), + ve(float64(0.0), redis.ErrNil), + }, + { + "uint64(1)", + ve(redis.Uint64(int64(1), nil)), + ve(uint64(1), nil), + }, + { + "uint64(-1)", + ve(redis.Uint64(int64(-1), nil)), + ve(uint64(0), redis.ErrNegativeInt), + }, +} + +func TestReply(t *testing.T) { + for _, rt := range replyTests { + if rt.actual.err != rt.expected.err { + t.Errorf("%s returned err %v, want %v", rt.name, rt.actual.err, rt.expected.err) + continue + } + if !reflect.DeepEqual(rt.actual.v, rt.expected.v) { + t.Errorf("%s=%+v, want %+v", rt.name, rt.actual.v, rt.expected.v) + } + } +} + +// dial wraps DialTestDB() with a more suitable function name for examples. +func dial() (redis.Conn, error) { + return redistest.Dial() +} + +func ExampleBool() { + c, err := dial() + if err != nil { + panic(err) + } + defer c.Close() + + c.Do("SET", "foo", 1) + exists, _ := redis.Bool(c.Do("EXISTS", "foo")) + fmt.Printf("%#v\n", exists) + // Output: + // true +} + +func ExampleInt() { + c, err := dial() + if err != nil { + panic(err) + } + defer c.Close() + + c.Do("SET", "k1", 1) + n, _ := redis.Int(c.Do("GET", "k1")) + fmt.Printf("%#v\n", n) + n, _ = redis.Int(c.Do("INCR", "k1")) + fmt.Printf("%#v\n", n) + // Output: + // 1 + // 2 +} + +func ExampleInts() { + c, err := dial() + if err != nil { + panic(err) + } + defer c.Close() + + c.Do("SADD", "set_with_integers", 4, 5, 6) + ints, _ := redis.Ints(c.Do("SMEMBERS", "set_with_integers")) + fmt.Printf("%#v\n", ints) + // Output: + // []int{4, 5, 6} +} + +func ExampleString() { + c, err := dial() + if err != nil { + panic(err) + } + defer c.Close() + + c.Do("SET", "hello", "world") + s, err := redis.String(c.Do("GET", "hello")) + fmt.Printf("%#v\n", s) + // Output: + // "world" +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/scan.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/scan.go new file mode 100644 index 00000000000..8c9cfa18d47 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/scan.go @@ -0,0 +1,513 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis + +import ( + "errors" + "fmt" + "reflect" + "strconv" + "strings" + "sync" +) + +func ensureLen(d reflect.Value, n int) { + if n > d.Cap() { + d.Set(reflect.MakeSlice(d.Type(), n, n)) + } else { + d.SetLen(n) + } +} + +func cannotConvert(d reflect.Value, s interface{}) error { + return fmt.Errorf("redigo: Scan cannot convert from %s to %s", + reflect.TypeOf(s), d.Type()) +} + +func convertAssignBytes(d reflect.Value, s []byte) (err error) { + switch d.Type().Kind() { + case reflect.Float32, reflect.Float64: + var x float64 + x, err = strconv.ParseFloat(string(s), d.Type().Bits()) + d.SetFloat(x) + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + var x int64 + x, err = strconv.ParseInt(string(s), 10, d.Type().Bits()) + d.SetInt(x) + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + var x uint64 + x, err = strconv.ParseUint(string(s), 10, d.Type().Bits()) + d.SetUint(x) + case reflect.Bool: + var x bool + x, err = strconv.ParseBool(string(s)) + d.SetBool(x) + case reflect.String: + d.SetString(string(s)) + case reflect.Slice: + if d.Type().Elem().Kind() != reflect.Uint8 { + err = cannotConvert(d, s) + } else { + d.SetBytes(s) + } + default: + err = cannotConvert(d, s) + } + return +} + +func convertAssignInt(d reflect.Value, s int64) (err error) { + switch d.Type().Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + d.SetInt(s) + if d.Int() != s { + err = strconv.ErrRange + d.SetInt(0) + } + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + if s < 0 { + err = strconv.ErrRange + } else { + x := uint64(s) + d.SetUint(x) + if d.Uint() != x { + err = strconv.ErrRange + d.SetUint(0) + } + } + case reflect.Bool: + d.SetBool(s != 0) + default: + err = cannotConvert(d, s) + } + return +} + +func convertAssignValue(d reflect.Value, s interface{}) (err error) { + switch s := s.(type) { + case []byte: + err = convertAssignBytes(d, s) + case int64: + err = convertAssignInt(d, s) + default: + err = cannotConvert(d, s) + } + return err +} + +func convertAssignValues(d reflect.Value, s []interface{}) error { + if d.Type().Kind() != reflect.Slice { + return cannotConvert(d, s) + } + ensureLen(d, len(s)) + for i := 0; i < len(s); i++ { + if err := convertAssignValue(d.Index(i), s[i]); err != nil { + return err + } + } + return nil +} + +func convertAssign(d interface{}, s interface{}) (err error) { + // Handle the most common destination types using type switches and + // fall back to reflection for all other types. + switch s := s.(type) { + case nil: + // ingore + case []byte: + switch d := d.(type) { + case *string: + *d = string(s) + case *int: + *d, err = strconv.Atoi(string(s)) + case *bool: + *d, err = strconv.ParseBool(string(s)) + case *[]byte: + *d = s + case *interface{}: + *d = s + case nil: + // skip value + default: + if d := reflect.ValueOf(d); d.Type().Kind() != reflect.Ptr { + err = cannotConvert(d, s) + } else { + err = convertAssignBytes(d.Elem(), s) + } + } + case int64: + switch d := d.(type) { + case *int: + x := int(s) + if int64(x) != s { + err = strconv.ErrRange + x = 0 + } + *d = x + case *bool: + *d = s != 0 + case *interface{}: + *d = s + case nil: + // skip value + default: + if d := reflect.ValueOf(d); d.Type().Kind() != reflect.Ptr { + err = cannotConvert(d, s) + } else { + err = convertAssignInt(d.Elem(), s) + } + } + case []interface{}: + switch d := d.(type) { + case *[]interface{}: + *d = s + case *interface{}: + *d = s + case nil: + // skip value + default: + if d := reflect.ValueOf(d); d.Type().Kind() != reflect.Ptr { + err = cannotConvert(d, s) + } else { + err = convertAssignValues(d.Elem(), s) + } + } + case Error: + err = s + default: + err = cannotConvert(reflect.ValueOf(d), s) + } + return +} + +// Scan copies from src to the values pointed at by dest. +// +// The values pointed at by dest must be an integer, float, boolean, string, +// []byte, interface{} or slices of these types. Scan uses the standard strconv +// package to convert bulk strings to numeric and boolean types. +// +// If a dest value is nil, then the corresponding src value is skipped. +// +// If a src element is nil, then the corresponding dest value is not modified. +// +// To enable easy use of Scan in a loop, Scan returns the slice of src +// following the copied values. +func Scan(src []interface{}, dest ...interface{}) ([]interface{}, error) { + if len(src) < len(dest) { + return nil, errors.New("redigo: Scan array short") + } + var err error + for i, d := range dest { + err = convertAssign(d, src[i]) + if err != nil { + break + } + } + return src[len(dest):], err +} + +type fieldSpec struct { + name string + index []int + //omitEmpty bool +} + +type structSpec struct { + m map[string]*fieldSpec + l []*fieldSpec +} + +func (ss *structSpec) fieldSpec(name []byte) *fieldSpec { + return ss.m[string(name)] +} + +func compileStructSpec(t reflect.Type, depth map[string]int, index []int, ss *structSpec) { + for i := 0; i < t.NumField(); i++ { + f := t.Field(i) + switch { + case f.PkgPath != "": + // Ignore unexported fields. + case f.Anonymous: + // TODO: Handle pointers. Requires change to decoder and + // protection against infinite recursion. + if f.Type.Kind() == reflect.Struct { + compileStructSpec(f.Type, depth, append(index, i), ss) + } + default: + fs := &fieldSpec{name: f.Name} + tag := f.Tag.Get("redis") + p := strings.Split(tag, ",") + if len(p) > 0 { + if p[0] == "-" { + continue + } + if len(p[0]) > 0 { + fs.name = p[0] + } + for _, s := range p[1:] { + switch s { + //case "omitempty": + // fs.omitempty = true + default: + panic(errors.New("redigo: unknown field flag " + s + " for type " + t.Name())) + } + } + } + d, found := depth[fs.name] + if !found { + d = 1 << 30 + } + switch { + case len(index) == d: + // At same depth, remove from result. + delete(ss.m, fs.name) + j := 0 + for i := 0; i < len(ss.l); i++ { + if fs.name != ss.l[i].name { + ss.l[j] = ss.l[i] + j += 1 + } + } + ss.l = ss.l[:j] + case len(index) < d: + fs.index = make([]int, len(index)+1) + copy(fs.index, index) + fs.index[len(index)] = i + depth[fs.name] = len(index) + ss.m[fs.name] = fs + ss.l = append(ss.l, fs) + } + } + } +} + +var ( + structSpecMutex sync.RWMutex + structSpecCache = make(map[reflect.Type]*structSpec) + defaultFieldSpec = &fieldSpec{} +) + +func structSpecForType(t reflect.Type) *structSpec { + + structSpecMutex.RLock() + ss, found := structSpecCache[t] + structSpecMutex.RUnlock() + if found { + return ss + } + + structSpecMutex.Lock() + defer structSpecMutex.Unlock() + ss, found = structSpecCache[t] + if found { + return ss + } + + ss = &structSpec{m: make(map[string]*fieldSpec)} + compileStructSpec(t, make(map[string]int), nil, ss) + structSpecCache[t] = ss + return ss +} + +var errScanStructValue = errors.New("redigo: ScanStruct value must be non-nil pointer to a struct") + +// ScanStruct scans alternating names and values from src to a struct. The +// HGETALL and CONFIG GET commands return replies in this format. +// +// ScanStruct uses exported field names to match values in the response. Use +// 'redis' field tag to override the name: +// +// Field int `redis:"myName"` +// +// Fields with the tag redis:"-" are ignored. +// +// Integer, float, boolean, string and []byte fields are supported. Scan uses the +// standard strconv package to convert bulk string values to numeric and +// boolean types. +// +// If a src element is nil, then the corresponding field is not modified. +func ScanStruct(src []interface{}, dest interface{}) error { + d := reflect.ValueOf(dest) + if d.Kind() != reflect.Ptr || d.IsNil() { + return errScanStructValue + } + d = d.Elem() + if d.Kind() != reflect.Struct { + return errScanStructValue + } + ss := structSpecForType(d.Type()) + + if len(src)%2 != 0 { + return errors.New("redigo: ScanStruct expects even number of values in values") + } + + for i := 0; i < len(src); i += 2 { + s := src[i+1] + if s == nil { + continue + } + name, ok := src[i].([]byte) + if !ok { + return errors.New("redigo: ScanStruct key not a bulk string value") + } + fs := ss.fieldSpec(name) + if fs == nil { + continue + } + if err := convertAssignValue(d.FieldByIndex(fs.index), s); err != nil { + return err + } + } + return nil +} + +var ( + errScanSliceValue = errors.New("redigo: ScanSlice dest must be non-nil pointer to a struct") +) + +// ScanSlice scans src to the slice pointed to by dest. The elements the dest +// slice must be integer, float, boolean, string, struct or pointer to struct +// values. +// +// Struct fields must be integer, float, boolean or string values. All struct +// fields are used unless a subset is specified using fieldNames. +func ScanSlice(src []interface{}, dest interface{}, fieldNames ...string) error { + d := reflect.ValueOf(dest) + if d.Kind() != reflect.Ptr || d.IsNil() { + return errScanSliceValue + } + d = d.Elem() + if d.Kind() != reflect.Slice { + return errScanSliceValue + } + + isPtr := false + t := d.Type().Elem() + if t.Kind() == reflect.Ptr && t.Elem().Kind() == reflect.Struct { + isPtr = true + t = t.Elem() + } + + if t.Kind() != reflect.Struct { + ensureLen(d, len(src)) + for i, s := range src { + if s == nil { + continue + } + if err := convertAssignValue(d.Index(i), s); err != nil { + return err + } + } + return nil + } + + ss := structSpecForType(t) + fss := ss.l + if len(fieldNames) > 0 { + fss = make([]*fieldSpec, len(fieldNames)) + for i, name := range fieldNames { + fss[i] = ss.m[name] + if fss[i] == nil { + return errors.New("redigo: ScanSlice bad field name " + name) + } + } + } + + if len(fss) == 0 { + return errors.New("redigo: ScanSlice no struct fields") + } + + n := len(src) / len(fss) + if n*len(fss) != len(src) { + return errors.New("redigo: ScanSlice length not a multiple of struct field count") + } + + ensureLen(d, n) + for i := 0; i < n; i++ { + d := d.Index(i) + if isPtr { + if d.IsNil() { + d.Set(reflect.New(t)) + } + d = d.Elem() + } + for j, fs := range fss { + s := src[i*len(fss)+j] + if s == nil { + continue + } + if err := convertAssignValue(d.FieldByIndex(fs.index), s); err != nil { + return err + } + } + } + return nil +} + +// Args is a helper for constructing command arguments from structured values. +type Args []interface{} + +// Add returns the result of appending value to args. +func (args Args) Add(value ...interface{}) Args { + return append(args, value...) +} + +// AddFlat returns the result of appending the flattened value of v to args. +// +// Maps are flattened by appending the alternating keys and map values to args. +// +// Slices are flattened by appending the slice elements to args. +// +// Structs are flattened by appending the alternating names and values of +// exported fields to args. If v is a nil struct pointer, then nothing is +// appended. The 'redis' field tag overrides struct field names. See ScanStruct +// for more information on the use of the 'redis' field tag. +// +// Other types are appended to args as is. +func (args Args) AddFlat(v interface{}) Args { + rv := reflect.ValueOf(v) + switch rv.Kind() { + case reflect.Struct: + args = flattenStruct(args, rv) + case reflect.Slice: + for i := 0; i < rv.Len(); i++ { + args = append(args, rv.Index(i).Interface()) + } + case reflect.Map: + for _, k := range rv.MapKeys() { + args = append(args, k.Interface(), rv.MapIndex(k).Interface()) + } + case reflect.Ptr: + if rv.Type().Elem().Kind() == reflect.Struct { + if !rv.IsNil() { + args = flattenStruct(args, rv.Elem()) + } + } else { + args = append(args, v) + } + default: + args = append(args, v) + } + return args +} + +func flattenStruct(args Args, v reflect.Value) Args { + ss := structSpecForType(v.Type()) + for _, fs := range ss.l { + fv := v.FieldByIndex(fs.index) + args = append(args, fs.name, fv.Interface()) + } + return args +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/scan_test.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/scan_test.go new file mode 100644 index 00000000000..b57dd89695e --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/scan_test.go @@ -0,0 +1,412 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis_test + +import ( + "fmt" + "github.com/garyburd/redigo/redis" + "math" + "reflect" + "testing" +) + +var scanConversionTests = []struct { + src interface{} + dest interface{} +}{ + {[]byte("-inf"), math.Inf(-1)}, + {[]byte("+inf"), math.Inf(1)}, + {[]byte("0"), float64(0)}, + {[]byte("3.14159"), float64(3.14159)}, + {[]byte("3.14"), float32(3.14)}, + {[]byte("-100"), int(-100)}, + {[]byte("101"), int(101)}, + {int64(102), int(102)}, + {[]byte("103"), uint(103)}, + {int64(104), uint(104)}, + {[]byte("105"), int8(105)}, + {int64(106), int8(106)}, + {[]byte("107"), uint8(107)}, + {int64(108), uint8(108)}, + {[]byte("0"), false}, + {int64(0), false}, + {[]byte("f"), false}, + {[]byte("1"), true}, + {int64(1), true}, + {[]byte("t"), true}, + {[]byte("hello"), "hello"}, + {[]byte("world"), []byte("world")}, + {[]interface{}{[]byte("foo")}, []interface{}{[]byte("foo")}}, + {[]interface{}{[]byte("foo")}, []string{"foo"}}, + {[]interface{}{[]byte("hello"), []byte("world")}, []string{"hello", "world"}}, + {[]interface{}{[]byte("bar")}, [][]byte{[]byte("bar")}}, + {[]interface{}{[]byte("1")}, []int{1}}, + {[]interface{}{[]byte("1"), []byte("2")}, []int{1, 2}}, + {[]interface{}{[]byte("1"), []byte("2")}, []float64{1, 2}}, + {[]interface{}{[]byte("1")}, []byte{1}}, + {[]interface{}{[]byte("1")}, []bool{true}}, +} + +func TestScanConversion(t *testing.T) { + for _, tt := range scanConversionTests { + values := []interface{}{tt.src} + dest := reflect.New(reflect.TypeOf(tt.dest)) + values, err := redis.Scan(values, dest.Interface()) + if err != nil { + t.Errorf("Scan(%v) returned error %v", tt, err) + continue + } + if !reflect.DeepEqual(tt.dest, dest.Elem().Interface()) { + t.Errorf("Scan(%v) returned %v, want %v", tt, dest.Elem().Interface(), tt.dest) + } + } +} + +var scanConversionErrorTests = []struct { + src interface{} + dest interface{} +}{ + {[]byte("1234"), byte(0)}, + {int64(1234), byte(0)}, + {[]byte("-1"), byte(0)}, + {int64(-1), byte(0)}, + {[]byte("junk"), false}, + {redis.Error("blah"), false}, +} + +func TestScanConversionError(t *testing.T) { + for _, tt := range scanConversionErrorTests { + values := []interface{}{tt.src} + dest := reflect.New(reflect.TypeOf(tt.dest)) + values, err := redis.Scan(values, dest.Interface()) + if err == nil { + t.Errorf("Scan(%v) did not return error", tt) + } + } +} + +func ExampleScan() { + c, err := dial() + if err != nil { + panic(err) + } + defer c.Close() + + c.Send("HMSET", "album:1", "title", "Red", "rating", 5) + c.Send("HMSET", "album:2", "title", "Earthbound", "rating", 1) + c.Send("HMSET", "album:3", "title", "Beat") + c.Send("LPUSH", "albums", "1") + c.Send("LPUSH", "albums", "2") + c.Send("LPUSH", "albums", "3") + values, err := redis.Values(c.Do("SORT", "albums", + "BY", "album:*->rating", + "GET", "album:*->title", + "GET", "album:*->rating")) + if err != nil { + panic(err) + } + + for len(values) > 0 { + var title string + rating := -1 // initialize to illegal value to detect nil. + values, err = redis.Scan(values, &title, &rating) + if err != nil { + panic(err) + } + if rating == -1 { + fmt.Println(title, "not-rated") + } else { + fmt.Println(title, rating) + } + } + // Output: + // Beat not-rated + // Earthbound 1 + // Red 5 +} + +type s0 struct { + X int + Y int `redis:"y"` + Bt bool +} + +type s1 struct { + X int `redis:"-"` + I int `redis:"i"` + U uint `redis:"u"` + S string `redis:"s"` + P []byte `redis:"p"` + B bool `redis:"b"` + Bt bool + Bf bool + s0 +} + +var scanStructTests = []struct { + title string + reply []string + value interface{} +}{ + {"basic", + []string{"i", "-1234", "u", "5678", "s", "hello", "p", "world", "b", "t", "Bt", "1", "Bf", "0", "X", "123", "y", "456"}, + &s1{I: -1234, U: 5678, S: "hello", P: []byte("world"), B: true, Bt: true, Bf: false, s0: s0{X: 123, Y: 456}}, + }, +} + +func TestScanStruct(t *testing.T) { + for _, tt := range scanStructTests { + + var reply []interface{} + for _, v := range tt.reply { + reply = append(reply, []byte(v)) + } + + value := reflect.New(reflect.ValueOf(tt.value).Type().Elem()) + + if err := redis.ScanStruct(reply, value.Interface()); err != nil { + t.Fatalf("ScanStruct(%s) returned error %v", tt.title, err) + } + + if !reflect.DeepEqual(value.Interface(), tt.value) { + t.Fatalf("ScanStruct(%s) returned %v, want %v", tt.title, value.Interface(), tt.value) + } + } +} + +func TestBadScanStructArgs(t *testing.T) { + x := []interface{}{"A", "b"} + test := func(v interface{}) { + if err := redis.ScanStruct(x, v); err == nil { + t.Errorf("Expect error for ScanStruct(%T, %T)", x, v) + } + } + + test(nil) + + var v0 *struct{} + test(v0) + + var v1 int + test(&v1) + + x = x[:1] + v2 := struct{ A string }{} + test(&v2) +} + +var scanSliceTests = []struct { + src []interface{} + fieldNames []string + ok bool + dest interface{} +}{ + { + []interface{}{[]byte("1"), nil, []byte("-1")}, + nil, + true, + []int{1, 0, -1}, + }, + { + []interface{}{[]byte("1"), nil, []byte("2")}, + nil, + true, + []uint{1, 0, 2}, + }, + { + []interface{}{[]byte("-1")}, + nil, + false, + []uint{1}, + }, + { + []interface{}{[]byte("hello"), nil, []byte("world")}, + nil, + true, + [][]byte{[]byte("hello"), nil, []byte("world")}, + }, + { + []interface{}{[]byte("hello"), nil, []byte("world")}, + nil, + true, + []string{"hello", "", "world"}, + }, + { + []interface{}{[]byte("a1"), []byte("b1"), []byte("a2"), []byte("b2")}, + nil, + true, + []struct{ A, B string }{{"a1", "b1"}, {"a2", "b2"}}, + }, + { + []interface{}{[]byte("a1"), []byte("b1")}, + nil, + false, + []struct{ A, B, C string }{{"a1", "b1", ""}}, + }, + { + []interface{}{[]byte("a1"), []byte("b1"), []byte("a2"), []byte("b2")}, + nil, + true, + []*struct{ A, B string }{{"a1", "b1"}, {"a2", "b2"}}, + }, + { + []interface{}{[]byte("a1"), []byte("b1"), []byte("a2"), []byte("b2")}, + []string{"A", "B"}, + true, + []struct{ A, C, B string }{{"a1", "", "b1"}, {"a2", "", "b2"}}, + }, + { + []interface{}{[]byte("a1"), []byte("b1"), []byte("a2"), []byte("b2")}, + nil, + false, + []struct{}{}, + }, +} + +func TestScanSlice(t *testing.T) { + for _, tt := range scanSliceTests { + + typ := reflect.ValueOf(tt.dest).Type() + dest := reflect.New(typ) + + err := redis.ScanSlice(tt.src, dest.Interface(), tt.fieldNames...) + if tt.ok != (err == nil) { + t.Errorf("ScanSlice(%v, []%s, %v) returned error %v", tt.src, typ, tt.fieldNames, err) + continue + } + if tt.ok && !reflect.DeepEqual(dest.Elem().Interface(), tt.dest) { + t.Errorf("ScanSlice(src, []%s) returned %#v, want %#v", typ, dest.Elem().Interface(), tt.dest) + } + } +} + +func ExampleScanSlice() { + c, err := dial() + if err != nil { + panic(err) + } + defer c.Close() + + c.Send("HMSET", "album:1", "title", "Red", "rating", 5) + c.Send("HMSET", "album:2", "title", "Earthbound", "rating", 1) + c.Send("HMSET", "album:3", "title", "Beat", "rating", 4) + c.Send("LPUSH", "albums", "1") + c.Send("LPUSH", "albums", "2") + c.Send("LPUSH", "albums", "3") + values, err := redis.Values(c.Do("SORT", "albums", + "BY", "album:*->rating", + "GET", "album:*->title", + "GET", "album:*->rating")) + if err != nil { + panic(err) + } + + var albums []struct { + Title string + Rating int + } + if err := redis.ScanSlice(values, &albums); err != nil { + panic(err) + } + fmt.Printf("%v\n", albums) + // Output: + // [{Earthbound 1} {Beat 4} {Red 5}] +} + +var argsTests = []struct { + title string + actual redis.Args + expected redis.Args +}{ + {"struct ptr", + redis.Args{}.AddFlat(&struct { + I int `redis:"i"` + U uint `redis:"u"` + S string `redis:"s"` + P []byte `redis:"p"` + Bt bool + Bf bool + }{ + -1234, 5678, "hello", []byte("world"), true, false, + }), + redis.Args{"i", int(-1234), "u", uint(5678), "s", "hello", "p", []byte("world"), "Bt", true, "Bf", false}, + }, + {"struct", + redis.Args{}.AddFlat(struct{ I int }{123}), + redis.Args{"I", 123}, + }, + {"slice", + redis.Args{}.Add(1).AddFlat([]string{"a", "b", "c"}).Add(2), + redis.Args{1, "a", "b", "c", 2}, + }, +} + +func TestArgs(t *testing.T) { + for _, tt := range argsTests { + if !reflect.DeepEqual(tt.actual, tt.expected) { + t.Fatalf("%s is %v, want %v", tt.title, tt.actual, tt.expected) + } + } +} + +func ExampleArgs() { + c, err := dial() + if err != nil { + panic(err) + } + defer c.Close() + + var p1, p2 struct { + Title string `redis:"title"` + Author string `redis:"author"` + Body string `redis:"body"` + } + + p1.Title = "Example" + p1.Author = "Gary" + p1.Body = "Hello" + + if _, err := c.Do("HMSET", redis.Args{}.Add("id1").AddFlat(&p1)...); err != nil { + panic(err) + } + + m := map[string]string{ + "title": "Example2", + "author": "Steve", + "body": "Map", + } + + if _, err := c.Do("HMSET", redis.Args{}.Add("id2").AddFlat(m)...); err != nil { + panic(err) + } + + for _, id := range []string{"id1", "id2"} { + + v, err := redis.Values(c.Do("HGETALL", id)) + if err != nil { + panic(err) + } + + if err := redis.ScanStruct(v, &p2); err != nil { + panic(err) + } + + fmt.Printf("%+v\n", p2) + } + + // Output: + // {Title:Example Author:Gary Body:Hello} + // {Title:Example2 Author:Steve Body:Map} +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/script.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/script.go new file mode 100644 index 00000000000..78605a90a83 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/script.go @@ -0,0 +1,86 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis + +import ( + "crypto/sha1" + "encoding/hex" + "io" + "strings" +) + +// Script encapsulates the source, hash and key count for a Lua script. See +// http://redis.io/commands/eval for information on scripts in Redis. +type Script struct { + keyCount int + src string + hash string +} + +// NewScript returns a new script object. If keyCount is greater than or equal +// to zero, then the count is automatically inserted in the EVAL command +// argument list. If keyCount is less than zero, then the application supplies +// the count as the first value in the keysAndArgs argument to the Do, Send and +// SendHash methods. +func NewScript(keyCount int, src string) *Script { + h := sha1.New() + io.WriteString(h, src) + return &Script{keyCount, src, hex.EncodeToString(h.Sum(nil))} +} + +func (s *Script) args(spec string, keysAndArgs []interface{}) []interface{} { + var args []interface{} + if s.keyCount < 0 { + args = make([]interface{}, 1+len(keysAndArgs)) + args[0] = spec + copy(args[1:], keysAndArgs) + } else { + args = make([]interface{}, 2+len(keysAndArgs)) + args[0] = spec + args[1] = s.keyCount + copy(args[2:], keysAndArgs) + } + return args +} + +// Do evaluates the script. Under the covers, Do optimistically evaluates the +// script using the EVALSHA command. If the command fails because the script is +// not loaded, then Do evaluates the script using the EVAL command (thus +// causing the script to load). +func (s *Script) Do(c Conn, keysAndArgs ...interface{}) (interface{}, error) { + v, err := c.Do("EVALSHA", s.args(s.hash, keysAndArgs)...) + if e, ok := err.(Error); ok && strings.HasPrefix(string(e), "NOSCRIPT ") { + v, err = c.Do("EVAL", s.args(s.src, keysAndArgs)...) + } + return v, err +} + +// SendHash evaluates the script without waiting for the reply. The script is +// evaluated with the EVALSHA command. The application must ensure that the +// script is loaded by a previous call to Send, Do or Load methods. +func (s *Script) SendHash(c Conn, keysAndArgs ...interface{}) error { + return c.Send("EVALSHA", s.args(s.hash, keysAndArgs)...) +} + +// Send evaluates the script without waiting for the reply. +func (s *Script) Send(c Conn, keysAndArgs ...interface{}) error { + return c.Send("EVAL", s.args(s.src, keysAndArgs)...) +} + +// Load loads the script without evaluating it. +func (s *Script) Load(c Conn) error { + _, err := c.Do("SCRIPT", "LOAD", s.src) + return err +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/script_test.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/script_test.go new file mode 100644 index 00000000000..c9635bf08e3 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/script_test.go @@ -0,0 +1,93 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis_test + +import ( + "fmt" + "reflect" + "testing" + "time" + + "github.com/garyburd/redigo/internal/redistest" + "github.com/garyburd/redigo/redis" +) + +func ExampleScript(c redis.Conn, reply interface{}, err error) { + // Initialize a package-level variable with a script. + var getScript = redis.NewScript(1, `return redis.call('get', KEYS[1])`) + + // In a function, use the script Do method to evaluate the script. The Do + // method optimistically uses the EVALSHA command. If the script is not + // loaded, then the Do method falls back to the EVAL command. + reply, err = getScript.Do(c, "foo") +} + +func TestScript(t *testing.T) { + c, err := redistest.Dial() + if err != nil { + t.Fatalf("error connection to database, %v", err) + } + defer c.Close() + + // To test fall back in Do, we make script unique by adding comment with current time. + script := fmt.Sprintf("--%d\nreturn {KEYS[1],KEYS[2],ARGV[1],ARGV[2]}", time.Now().UnixNano()) + s := redis.NewScript(2, script) + reply := []interface{}{[]byte("key1"), []byte("key2"), []byte("arg1"), []byte("arg2")} + + v, err := s.Do(c, "key1", "key2", "arg1", "arg2") + if err != nil { + t.Errorf("s.Do(c, ...) returned %v", err) + } + + if !reflect.DeepEqual(v, reply) { + t.Errorf("s.Do(c, ..); = %v, want %v", v, reply) + } + + err = s.Load(c) + if err != nil { + t.Errorf("s.Load(c) returned %v", err) + } + + err = s.SendHash(c, "key1", "key2", "arg1", "arg2") + if err != nil { + t.Errorf("s.SendHash(c, ...) returned %v", err) + } + + err = c.Flush() + if err != nil { + t.Errorf("c.Flush() returned %v", err) + } + + v, err = c.Receive() + if !reflect.DeepEqual(v, reply) { + t.Errorf("s.SendHash(c, ..); c.Receive() = %v, want %v", v, reply) + } + + err = s.Send(c, "key1", "key2", "arg1", "arg2") + if err != nil { + t.Errorf("s.Send(c, ...) returned %v", err) + } + + err = c.Flush() + if err != nil { + t.Errorf("c.Flush() returned %v", err) + } + + v, err = c.Receive() + if !reflect.DeepEqual(v, reply) { + t.Errorf("s.Send(c, ..); c.Receive() = %v, want %v", v, reply) + } + +} diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/test_test.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/test_test.go new file mode 100644 index 00000000000..b959a11f4f7 --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/test_test.go @@ -0,0 +1,38 @@ +// Copyright 2012 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis + +import ( + "bufio" + "net" + "time" +) + +func SetNowFunc(f func() time.Time) { + nowFunc = f +} + +type nopCloser struct{ net.Conn } + +func (nopCloser) Close() error { return nil } + +// NewConnBufio is a hook for tests. +func NewConnBufio(rw bufio.ReadWriter) Conn { + return &conn{br: rw.Reader, bw: rw.Writer, conn: nopCloser{}} +} + +var ( + ErrNegativeInt = errNegativeInt +) diff --git a/Godeps/_workspace/src/github.com/garyburd/redigo/redis/zpop_example_test.go b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/zpop_example_test.go new file mode 100644 index 00000000000..1d86ee6ce8c --- /dev/null +++ b/Godeps/_workspace/src/github.com/garyburd/redigo/redis/zpop_example_test.go @@ -0,0 +1,113 @@ +// Copyright 2013 Gary Burd +// +// Licensed under the Apache License, Version 2.0 (the "License"): you may +// not use this file except in compliance with the License. You may obtain +// a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations +// under the License. + +package redis_test + +import ( + "fmt" + "github.com/garyburd/redigo/redis" +) + +// zpop pops a value from the ZSET key using WATCH/MULTI/EXEC commands. +func zpop(c redis.Conn, key string) (result string, err error) { + + defer func() { + // Return connection to normal state on error. + if err != nil { + c.Do("DISCARD") + } + }() + + // Loop until transaction is successful. + for { + if _, err := c.Do("WATCH", key); err != nil { + return "", err + } + + members, err := redis.Strings(c.Do("ZRANGE", key, 0, 0)) + if err != nil { + return "", err + } + if len(members) != 1 { + return "", redis.ErrNil + } + + c.Send("MULTI") + c.Send("ZREM", key, members[0]) + queued, err := c.Do("EXEC") + if err != nil { + return "", err + } + + if queued != nil { + result = members[0] + break + } + } + + return result, nil +} + +// zpopScript pops a value from a ZSET. +var zpopScript = redis.NewScript(1, ` + local r = redis.call('ZRANGE', KEYS[1], 0, 0) + if r ~= nil then + r = r[1] + redis.call('ZREM', KEYS[1], r) + end + return r +`) + +// This example implements ZPOP as described at +// http://redis.io/topics/transactions using WATCH/MULTI/EXEC and scripting. +func Example_zpop() { + c, err := dial() + if err != nil { + fmt.Println(err) + return + } + defer c.Close() + + // Add test data using a pipeline. + + for i, member := range []string{"red", "blue", "green"} { + c.Send("ZADD", "zset", i, member) + } + if _, err := c.Do(""); err != nil { + fmt.Println(err) + return + } + + // Pop using WATCH/MULTI/EXEC + + v, err := zpop(c, "zset") + if err != nil { + fmt.Println(err) + return + } + fmt.Println(v) + + // Pop using a script. + + v, err = redis.String(zpopScript.Do(c, "zset")) + if err != nil { + fmt.Println(err) + return + } + fmt.Println(v) + + // Output: + // red + // blue +} diff --git a/Godeps/_workspace/src/github.com/gorilla/context/.travis.yml b/Godeps/_workspace/src/github.com/gorilla/context/.travis.yml new file mode 100644 index 00000000000..6796581fbd9 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gorilla/context/.travis.yml @@ -0,0 +1,9 @@ +language: go + +go: + - 1.0 + - 1.1 + - 1.2 + - 1.3 + - 1.4 + - tip diff --git a/Godeps/_workspace/src/github.com/gorilla/context/LICENSE b/Godeps/_workspace/src/github.com/gorilla/context/LICENSE new file mode 100644 index 00000000000..0e5fb872800 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gorilla/context/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2012 Rodrigo Moraes. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/gorilla/context/README.md b/Godeps/_workspace/src/github.com/gorilla/context/README.md new file mode 100644 index 00000000000..c60a31b053b --- /dev/null +++ b/Godeps/_workspace/src/github.com/gorilla/context/README.md @@ -0,0 +1,7 @@ +context +======= +[![Build Status](https://travis-ci.org/gorilla/context.png?branch=master)](https://travis-ci.org/gorilla/context) + +gorilla/context is a general purpose registry for global request variables. + +Read the full documentation here: http://www.gorillatoolkit.org/pkg/context diff --git a/Godeps/_workspace/src/github.com/gorilla/context/context.go b/Godeps/_workspace/src/github.com/gorilla/context/context.go new file mode 100644 index 00000000000..81cb128b19c --- /dev/null +++ b/Godeps/_workspace/src/github.com/gorilla/context/context.go @@ -0,0 +1,143 @@ +// Copyright 2012 The Gorilla Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package context + +import ( + "net/http" + "sync" + "time" +) + +var ( + mutex sync.RWMutex + data = make(map[*http.Request]map[interface{}]interface{}) + datat = make(map[*http.Request]int64) +) + +// Set stores a value for a given key in a given request. +func Set(r *http.Request, key, val interface{}) { + mutex.Lock() + if data[r] == nil { + data[r] = make(map[interface{}]interface{}) + datat[r] = time.Now().Unix() + } + data[r][key] = val + mutex.Unlock() +} + +// Get returns a value stored for a given key in a given request. +func Get(r *http.Request, key interface{}) interface{} { + mutex.RLock() + if ctx := data[r]; ctx != nil { + value := ctx[key] + mutex.RUnlock() + return value + } + mutex.RUnlock() + return nil +} + +// GetOk returns stored value and presence state like multi-value return of map access. +func GetOk(r *http.Request, key interface{}) (interface{}, bool) { + mutex.RLock() + if _, ok := data[r]; ok { + value, ok := data[r][key] + mutex.RUnlock() + return value, ok + } + mutex.RUnlock() + return nil, false +} + +// GetAll returns all stored values for the request as a map. Nil is returned for invalid requests. +func GetAll(r *http.Request) map[interface{}]interface{} { + mutex.RLock() + if context, ok := data[r]; ok { + result := make(map[interface{}]interface{}, len(context)) + for k, v := range context { + result[k] = v + } + mutex.RUnlock() + return result + } + mutex.RUnlock() + return nil +} + +// GetAllOk returns all stored values for the request as a map and a boolean value that indicates if +// the request was registered. +func GetAllOk(r *http.Request) (map[interface{}]interface{}, bool) { + mutex.RLock() + context, ok := data[r] + result := make(map[interface{}]interface{}, len(context)) + for k, v := range context { + result[k] = v + } + mutex.RUnlock() + return result, ok +} + +// Delete removes a value stored for a given key in a given request. +func Delete(r *http.Request, key interface{}) { + mutex.Lock() + if data[r] != nil { + delete(data[r], key) + } + mutex.Unlock() +} + +// Clear removes all values stored for a given request. +// +// This is usually called by a handler wrapper to clean up request +// variables at the end of a request lifetime. See ClearHandler(). +func Clear(r *http.Request) { + mutex.Lock() + clear(r) + mutex.Unlock() +} + +// clear is Clear without the lock. +func clear(r *http.Request) { + delete(data, r) + delete(datat, r) +} + +// Purge removes request data stored for longer than maxAge, in seconds. +// It returns the amount of requests removed. +// +// If maxAge <= 0, all request data is removed. +// +// This is only used for sanity check: in case context cleaning was not +// properly set some request data can be kept forever, consuming an increasing +// amount of memory. In case this is detected, Purge() must be called +// periodically until the problem is fixed. +func Purge(maxAge int) int { + mutex.Lock() + count := 0 + if maxAge <= 0 { + count = len(data) + data = make(map[*http.Request]map[interface{}]interface{}) + datat = make(map[*http.Request]int64) + } else { + min := time.Now().Unix() - int64(maxAge) + for r := range data { + if datat[r] < min { + clear(r) + count++ + } + } + } + mutex.Unlock() + return count +} + +// ClearHandler wraps an http.Handler and clears request values at the end +// of a request lifetime. +func ClearHandler(h http.Handler) http.Handler { + return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + defer Clear(r) + h.ServeHTTP(w, r) + }) +} diff --git a/Godeps/_workspace/src/github.com/gorilla/context/context_test.go b/Godeps/_workspace/src/github.com/gorilla/context/context_test.go new file mode 100644 index 00000000000..9814c501e8a --- /dev/null +++ b/Godeps/_workspace/src/github.com/gorilla/context/context_test.go @@ -0,0 +1,161 @@ +// Copyright 2012 The Gorilla Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package context + +import ( + "net/http" + "testing" +) + +type keyType int + +const ( + key1 keyType = iota + key2 +) + +func TestContext(t *testing.T) { + assertEqual := func(val interface{}, exp interface{}) { + if val != exp { + t.Errorf("Expected %v, got %v.", exp, val) + } + } + + r, _ := http.NewRequest("GET", "http://localhost:8080/", nil) + emptyR, _ := http.NewRequest("GET", "http://localhost:8080/", nil) + + // Get() + assertEqual(Get(r, key1), nil) + + // Set() + Set(r, key1, "1") + assertEqual(Get(r, key1), "1") + assertEqual(len(data[r]), 1) + + Set(r, key2, "2") + assertEqual(Get(r, key2), "2") + assertEqual(len(data[r]), 2) + + //GetOk + value, ok := GetOk(r, key1) + assertEqual(value, "1") + assertEqual(ok, true) + + value, ok = GetOk(r, "not exists") + assertEqual(value, nil) + assertEqual(ok, false) + + Set(r, "nil value", nil) + value, ok = GetOk(r, "nil value") + assertEqual(value, nil) + assertEqual(ok, true) + + // GetAll() + values := GetAll(r) + assertEqual(len(values), 3) + + // GetAll() for empty request + values = GetAll(emptyR) + if values != nil { + t.Error("GetAll didn't return nil value for invalid request") + } + + // GetAllOk() + values, ok = GetAllOk(r) + assertEqual(len(values), 3) + assertEqual(ok, true) + + // GetAllOk() for empty request + values, ok = GetAllOk(emptyR) + assertEqual(value, nil) + assertEqual(ok, false) + + // Delete() + Delete(r, key1) + assertEqual(Get(r, key1), nil) + assertEqual(len(data[r]), 2) + + Delete(r, key2) + assertEqual(Get(r, key2), nil) + assertEqual(len(data[r]), 1) + + // Clear() + Clear(r) + assertEqual(len(data), 0) +} + +func parallelReader(r *http.Request, key string, iterations int, wait, done chan struct{}) { + <-wait + for i := 0; i < iterations; i++ { + Get(r, key) + } + done <- struct{}{} + +} + +func parallelWriter(r *http.Request, key, value string, iterations int, wait, done chan struct{}) { + <-wait + for i := 0; i < iterations; i++ { + Set(r, key, value) + } + done <- struct{}{} + +} + +func benchmarkMutex(b *testing.B, numReaders, numWriters, iterations int) { + + b.StopTimer() + r, _ := http.NewRequest("GET", "http://localhost:8080/", nil) + done := make(chan struct{}) + b.StartTimer() + + for i := 0; i < b.N; i++ { + wait := make(chan struct{}) + + for i := 0; i < numReaders; i++ { + go parallelReader(r, "test", iterations, wait, done) + } + + for i := 0; i < numWriters; i++ { + go parallelWriter(r, "test", "123", iterations, wait, done) + } + + close(wait) + + for i := 0; i < numReaders+numWriters; i++ { + <-done + } + + } + +} + +func BenchmarkMutexSameReadWrite1(b *testing.B) { + benchmarkMutex(b, 1, 1, 32) +} +func BenchmarkMutexSameReadWrite2(b *testing.B) { + benchmarkMutex(b, 2, 2, 32) +} +func BenchmarkMutexSameReadWrite4(b *testing.B) { + benchmarkMutex(b, 4, 4, 32) +} +func BenchmarkMutex1(b *testing.B) { + benchmarkMutex(b, 2, 8, 32) +} +func BenchmarkMutex2(b *testing.B) { + benchmarkMutex(b, 16, 4, 64) +} +func BenchmarkMutex3(b *testing.B) { + benchmarkMutex(b, 1, 2, 128) +} +func BenchmarkMutex4(b *testing.B) { + benchmarkMutex(b, 128, 32, 256) +} +func BenchmarkMutex5(b *testing.B) { + benchmarkMutex(b, 1024, 2048, 64) +} +func BenchmarkMutex6(b *testing.B) { + benchmarkMutex(b, 2048, 1024, 512) +} diff --git a/Godeps/_workspace/src/github.com/gorilla/context/doc.go b/Godeps/_workspace/src/github.com/gorilla/context/doc.go new file mode 100644 index 00000000000..73c7400311e --- /dev/null +++ b/Godeps/_workspace/src/github.com/gorilla/context/doc.go @@ -0,0 +1,82 @@ +// Copyright 2012 The Gorilla Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +/* +Package context stores values shared during a request lifetime. + +For example, a router can set variables extracted from the URL and later +application handlers can access those values, or it can be used to store +sessions values to be saved at the end of a request. There are several +others common uses. + +The idea was posted by Brad Fitzpatrick to the go-nuts mailing list: + + http://groups.google.com/group/golang-nuts/msg/e2d679d303aa5d53 + +Here's the basic usage: first define the keys that you will need. The key +type is interface{} so a key can be of any type that supports equality. +Here we define a key using a custom int type to avoid name collisions: + + package foo + + import ( + "github.com/gorilla/context" + ) + + type key int + + const MyKey key = 0 + +Then set a variable. Variables are bound to an http.Request object, so you +need a request instance to set a value: + + context.Set(r, MyKey, "bar") + +The application can later access the variable using the same key you provided: + + func MyHandler(w http.ResponseWriter, r *http.Request) { + // val is "bar". + val := context.Get(r, foo.MyKey) + + // returns ("bar", true) + val, ok := context.GetOk(r, foo.MyKey) + // ... + } + +And that's all about the basic usage. We discuss some other ideas below. + +Any type can be stored in the context. To enforce a given type, make the key +private and wrap Get() and Set() to accept and return values of a specific +type: + + type key int + + const mykey key = 0 + + // GetMyKey returns a value for this package from the request values. + func GetMyKey(r *http.Request) SomeType { + if rv := context.Get(r, mykey); rv != nil { + return rv.(SomeType) + } + return nil + } + + // SetMyKey sets a value for this package in the request values. + func SetMyKey(r *http.Request, val SomeType) { + context.Set(r, mykey, val) + } + +Variables must be cleared at the end of a request, to remove all values +that were stored. This can be done in an http.Handler, after a request was +served. Just call Clear() passing the request: + + context.Clear(r) + +...or use ClearHandler(), which conveniently wraps an http.Handler to clear +variables at the end of a request lifetime. + +The Routers from the packages gorilla/mux and gorilla/pat call Clear() +so if you are using either of them you don't need to clear the context manually. +*/ +package context diff --git a/Godeps/_workspace/src/github.com/gorilla/mux/.travis.yml b/Godeps/_workspace/src/github.com/gorilla/mux/.travis.yml new file mode 100644 index 00000000000..d87d4657686 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gorilla/mux/.travis.yml @@ -0,0 +1,7 @@ +language: go + +go: + - 1.0 + - 1.1 + - 1.2 + - tip diff --git a/Godeps/_workspace/src/github.com/gorilla/mux/LICENSE b/Godeps/_workspace/src/github.com/gorilla/mux/LICENSE new file mode 100644 index 00000000000..0e5fb872800 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gorilla/mux/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2012 Rodrigo Moraes. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Godeps/_workspace/src/github.com/gorilla/mux/README.md b/Godeps/_workspace/src/github.com/gorilla/mux/README.md new file mode 100644 index 00000000000..e60301b0336 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gorilla/mux/README.md @@ -0,0 +1,7 @@ +mux +=== +[![Build Status](https://travis-ci.org/gorilla/mux.png?branch=master)](https://travis-ci.org/gorilla/mux) + +gorilla/mux is a powerful URL router and dispatcher. + +Read the full documentation here: http://www.gorillatoolkit.org/pkg/mux diff --git a/Godeps/_workspace/src/github.com/gorilla/mux/bench_test.go b/Godeps/_workspace/src/github.com/gorilla/mux/bench_test.go new file mode 100644 index 00000000000..c5f97b2b2a8 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gorilla/mux/bench_test.go @@ -0,0 +1,21 @@ +// Copyright 2012 The Gorilla Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package mux + +import ( + "net/http" + "testing" +) + +func BenchmarkMux(b *testing.B) { + router := new(Router) + handler := func(w http.ResponseWriter, r *http.Request) {} + router.HandleFunc("/v1/{v1}", handler) + + request, _ := http.NewRequest("GET", "/v1/anything", nil) + for i := 0; i < b.N; i++ { + router.ServeHTTP(nil, request) + } +} diff --git a/Godeps/_workspace/src/github.com/gorilla/mux/doc.go b/Godeps/_workspace/src/github.com/gorilla/mux/doc.go new file mode 100644 index 00000000000..b2deed34c47 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gorilla/mux/doc.go @@ -0,0 +1,199 @@ +// Copyright 2012 The Gorilla Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +/* +Package gorilla/mux implements a request router and dispatcher. + +The name mux stands for "HTTP request multiplexer". Like the standard +http.ServeMux, mux.Router matches incoming requests against a list of +registered routes and calls a handler for the route that matches the URL +or other conditions. The main features are: + + * Requests can be matched based on URL host, path, path prefix, schemes, + header and query values, HTTP methods or using custom matchers. + * URL hosts and paths can have variables with an optional regular + expression. + * Registered URLs can be built, or "reversed", which helps maintaining + references to resources. + * Routes can be used as subrouters: nested routes are only tested if the + parent route matches. This is useful to define groups of routes that + share common conditions like a host, a path prefix or other repeated + attributes. As a bonus, this optimizes request matching. + * It implements the http.Handler interface so it is compatible with the + standard http.ServeMux. + +Let's start registering a couple of URL paths and handlers: + + func main() { + r := mux.NewRouter() + r.HandleFunc("/", HomeHandler) + r.HandleFunc("/products", ProductsHandler) + r.HandleFunc("/articles", ArticlesHandler) + http.Handle("/", r) + } + +Here we register three routes mapping URL paths to handlers. This is +equivalent to how http.HandleFunc() works: if an incoming request URL matches +one of the paths, the corresponding handler is called passing +(http.ResponseWriter, *http.Request) as parameters. + +Paths can have variables. They are defined using the format {name} or +{name:pattern}. If a regular expression pattern is not defined, the matched +variable will be anything until the next slash. For example: + + r := mux.NewRouter() + r.HandleFunc("/products/{key}", ProductHandler) + r.HandleFunc("/articles/{category}/", ArticlesCategoryHandler) + r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler) + +The names are used to create a map of route variables which can be retrieved +calling mux.Vars(): + + vars := mux.Vars(request) + category := vars["category"] + +And this is all you need to know about the basic usage. More advanced options +are explained below. + +Routes can also be restricted to a domain or subdomain. Just define a host +pattern to be matched. They can also have variables: + + r := mux.NewRouter() + // Only matches if domain is "www.domain.com". + r.Host("www.domain.com") + // Matches a dynamic subdomain. + r.Host("{subdomain:[a-z]+}.domain.com") + +There are several other matchers that can be added. To match path prefixes: + + r.PathPrefix("/products/") + +...or HTTP methods: + + r.Methods("GET", "POST") + +...or URL schemes: + + r.Schemes("https") + +...or header values: + + r.Headers("X-Requested-With", "XMLHttpRequest") + +...or query values: + + r.Queries("key", "value") + +...or to use a custom matcher function: + + r.MatcherFunc(func(r *http.Request, rm *RouteMatch) bool { + return r.ProtoMajor == 0 + }) + +...and finally, it is possible to combine several matchers in a single route: + + r.HandleFunc("/products", ProductsHandler). + Host("www.domain.com"). + Methods("GET"). + Schemes("http") + +Setting the same matching conditions again and again can be boring, so we have +a way to group several routes that share the same requirements. +We call it "subrouting". + +For example, let's say we have several URLs that should only match when the +host is "www.domain.com". Create a route for that host and get a "subrouter" +from it: + + r := mux.NewRouter() + s := r.Host("www.domain.com").Subrouter() + +Then register routes in the subrouter: + + s.HandleFunc("/products/", ProductsHandler) + s.HandleFunc("/products/{key}", ProductHandler) + s.HandleFunc("/articles/{category}/{id:[0-9]+}"), ArticleHandler) + +The three URL paths we registered above will only be tested if the domain is +"www.domain.com", because the subrouter is tested first. This is not +only convenient, but also optimizes request matching. You can create +subrouters combining any attribute matchers accepted by a route. + +Subrouters can be used to create domain or path "namespaces": you define +subrouters in a central place and then parts of the app can register its +paths relatively to a given subrouter. + +There's one more thing about subroutes. When a subrouter has a path prefix, +the inner routes use it as base for their paths: + + r := mux.NewRouter() + s := r.PathPrefix("/products").Subrouter() + // "/products/" + s.HandleFunc("/", ProductsHandler) + // "/products/{key}/" + s.HandleFunc("/{key}/", ProductHandler) + // "/products/{key}/details" + s.HandleFunc("/{key}/details", ProductDetailsHandler) + +Now let's see how to build registered URLs. + +Routes can be named. All routes that define a name can have their URLs built, +or "reversed". We define a name calling Name() on a route. For example: + + r := mux.NewRouter() + r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler). + Name("article") + +To build a URL, get the route and call the URL() method, passing a sequence of +key/value pairs for the route variables. For the previous route, we would do: + + url, err := r.Get("article").URL("category", "technology", "id", "42") + +...and the result will be a url.URL with the following path: + + "/articles/technology/42" + +This also works for host variables: + + r := mux.NewRouter() + r.Host("{subdomain}.domain.com"). + Path("/articles/{category}/{id:[0-9]+}"). + HandlerFunc(ArticleHandler). + Name("article") + + // url.String() will be "http://news.domain.com/articles/technology/42" + url, err := r.Get("article").URL("subdomain", "news", + "category", "technology", + "id", "42") + +All variables defined in the route are required, and their values must +conform to the corresponding patterns. These requirements guarantee that a +generated URL will always match a registered route -- the only exception is +for explicitly defined "build-only" routes which never match. + +There's also a way to build only the URL host or path for a route: +use the methods URLHost() or URLPath() instead. For the previous route, +we would do: + + // "http://news.domain.com/" + host, err := r.Get("article").URLHost("subdomain", "news") + + // "/articles/technology/42" + path, err := r.Get("article").URLPath("category", "technology", "id", "42") + +And if you use subrouters, host and path defined separately can be built +as well: + + r := mux.NewRouter() + s := r.Host("{subdomain}.domain.com").Subrouter() + s.Path("/articles/{category}/{id:[0-9]+}"). + HandlerFunc(ArticleHandler). + Name("article") + + // "http://news.domain.com/articles/technology/42" + url, err := r.Get("article").URL("subdomain", "news", + "category", "technology", + "id", "42") +*/ +package mux diff --git a/Godeps/_workspace/src/github.com/gorilla/mux/mux.go b/Godeps/_workspace/src/github.com/gorilla/mux/mux.go new file mode 100644 index 00000000000..af31d239557 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gorilla/mux/mux.go @@ -0,0 +1,366 @@ +// Copyright 2012 The Gorilla Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package mux + +import ( + "fmt" + "net/http" + "path" + + "github.com/gorilla/context" +) + +// NewRouter returns a new router instance. +func NewRouter() *Router { + return &Router{namedRoutes: make(map[string]*Route), KeepContext: false} +} + +// Router registers routes to be matched and dispatches a handler. +// +// It implements the http.Handler interface, so it can be registered to serve +// requests: +// +// var router = mux.NewRouter() +// +// func main() { +// http.Handle("/", router) +// } +// +// Or, for Google App Engine, register it in a init() function: +// +// func init() { +// http.Handle("/", router) +// } +// +// This will send all incoming requests to the router. +type Router struct { + // Configurable Handler to be used when no route matches. + NotFoundHandler http.Handler + // Parent route, if this is a subrouter. + parent parentRoute + // Routes to be matched, in order. + routes []*Route + // Routes by name for URL building. + namedRoutes map[string]*Route + // See Router.StrictSlash(). This defines the flag for new routes. + strictSlash bool + // If true, do not clear the request context after handling the request + KeepContext bool +} + +// Match matches registered routes against the request. +func (r *Router) Match(req *http.Request, match *RouteMatch) bool { + for _, route := range r.routes { + if route.Match(req, match) { + return true + } + } + return false +} + +// ServeHTTP dispatches the handler registered in the matched route. +// +// When there is a match, the route variables can be retrieved calling +// mux.Vars(request). +func (r *Router) ServeHTTP(w http.ResponseWriter, req *http.Request) { + // Clean path to canonical form and redirect. + if p := cleanPath(req.URL.Path); p != req.URL.Path { + + // Added 3 lines (Philip Schlump) - It was droping the query string and #whatever from query. + // This matches with fix in go 1.2 r.c. 4 for same problem. Go Issue: + // http://code.google.com/p/go/issues/detail?id=5252 + url := *req.URL + url.Path = p + p = url.String() + + w.Header().Set("Location", p) + w.WriteHeader(http.StatusMovedPermanently) + return + } + var match RouteMatch + var handler http.Handler + if r.Match(req, &match) { + handler = match.Handler + setVars(req, match.Vars) + setCurrentRoute(req, match.Route) + } + if handler == nil { + handler = r.NotFoundHandler + if handler == nil { + handler = http.NotFoundHandler() + } + } + if !r.KeepContext { + defer context.Clear(req) + } + handler.ServeHTTP(w, req) +} + +// Get returns a route registered with the given name. +func (r *Router) Get(name string) *Route { + return r.getNamedRoutes()[name] +} + +// GetRoute returns a route registered with the given name. This method +// was renamed to Get() and remains here for backwards compatibility. +func (r *Router) GetRoute(name string) *Route { + return r.getNamedRoutes()[name] +} + +// StrictSlash defines the trailing slash behavior for new routes. The initial +// value is false. +// +// When true, if the route path is "/path/", accessing "/path" will redirect +// to the former and vice versa. In other words, your application will always +// see the path as specified in the route. +// +// When false, if the route path is "/path", accessing "/path/" will not match +// this route and vice versa. +// +// Special case: when a route sets a path prefix using the PathPrefix() method, +// strict slash is ignored for that route because the redirect behavior can't +// be determined from a prefix alone. However, any subrouters created from that +// route inherit the original StrictSlash setting. +func (r *Router) StrictSlash(value bool) *Router { + r.strictSlash = value + return r +} + +// ---------------------------------------------------------------------------- +// parentRoute +// ---------------------------------------------------------------------------- + +// getNamedRoutes returns the map where named routes are registered. +func (r *Router) getNamedRoutes() map[string]*Route { + if r.namedRoutes == nil { + if r.parent != nil { + r.namedRoutes = r.parent.getNamedRoutes() + } else { + r.namedRoutes = make(map[string]*Route) + } + } + return r.namedRoutes +} + +// getRegexpGroup returns regexp definitions from the parent route, if any. +func (r *Router) getRegexpGroup() *routeRegexpGroup { + if r.parent != nil { + return r.parent.getRegexpGroup() + } + return nil +} + +func (r *Router) buildVars(m map[string]string) map[string]string { + if r.parent != nil { + m = r.parent.buildVars(m) + } + return m +} + +// ---------------------------------------------------------------------------- +// Route factories +// ---------------------------------------------------------------------------- + +// NewRoute registers an empty route. +func (r *Router) NewRoute() *Route { + route := &Route{parent: r, strictSlash: r.strictSlash} + r.routes = append(r.routes, route) + return route +} + +// Handle registers a new route with a matcher for the URL path. +// See Route.Path() and Route.Handler(). +func (r *Router) Handle(path string, handler http.Handler) *Route { + return r.NewRoute().Path(path).Handler(handler) +} + +// HandleFunc registers a new route with a matcher for the URL path. +// See Route.Path() and Route.HandlerFunc(). +func (r *Router) HandleFunc(path string, f func(http.ResponseWriter, + *http.Request)) *Route { + return r.NewRoute().Path(path).HandlerFunc(f) +} + +// Headers registers a new route with a matcher for request header values. +// See Route.Headers(). +func (r *Router) Headers(pairs ...string) *Route { + return r.NewRoute().Headers(pairs...) +} + +// Host registers a new route with a matcher for the URL host. +// See Route.Host(). +func (r *Router) Host(tpl string) *Route { + return r.NewRoute().Host(tpl) +} + +// MatcherFunc registers a new route with a custom matcher function. +// See Route.MatcherFunc(). +func (r *Router) MatcherFunc(f MatcherFunc) *Route { + return r.NewRoute().MatcherFunc(f) +} + +// Methods registers a new route with a matcher for HTTP methods. +// See Route.Methods(). +func (r *Router) Methods(methods ...string) *Route { + return r.NewRoute().Methods(methods...) +} + +// Path registers a new route with a matcher for the URL path. +// See Route.Path(). +func (r *Router) Path(tpl string) *Route { + return r.NewRoute().Path(tpl) +} + +// PathPrefix registers a new route with a matcher for the URL path prefix. +// See Route.PathPrefix(). +func (r *Router) PathPrefix(tpl string) *Route { + return r.NewRoute().PathPrefix(tpl) +} + +// Queries registers a new route with a matcher for URL query values. +// See Route.Queries(). +func (r *Router) Queries(pairs ...string) *Route { + return r.NewRoute().Queries(pairs...) +} + +// Schemes registers a new route with a matcher for URL schemes. +// See Route.Schemes(). +func (r *Router) Schemes(schemes ...string) *Route { + return r.NewRoute().Schemes(schemes...) +} + +// BuildVars registers a new route with a custom function for modifying +// route variables before building a URL. +func (r *Router) BuildVarsFunc(f BuildVarsFunc) *Route { + return r.NewRoute().BuildVarsFunc(f) +} + +// ---------------------------------------------------------------------------- +// Context +// ---------------------------------------------------------------------------- + +// RouteMatch stores information about a matched route. +type RouteMatch struct { + Route *Route + Handler http.Handler + Vars map[string]string +} + +type contextKey int + +const ( + varsKey contextKey = iota + routeKey +) + +// Vars returns the route variables for the current request, if any. +func Vars(r *http.Request) map[string]string { + if rv := context.Get(r, varsKey); rv != nil { + return rv.(map[string]string) + } + return nil +} + +// CurrentRoute returns the matched route for the current request, if any. +func CurrentRoute(r *http.Request) *Route { + if rv := context.Get(r, routeKey); rv != nil { + return rv.(*Route) + } + return nil +} + +func setVars(r *http.Request, val interface{}) { + context.Set(r, varsKey, val) +} + +func setCurrentRoute(r *http.Request, val interface{}) { + context.Set(r, routeKey, val) +} + +// ---------------------------------------------------------------------------- +// Helpers +// ---------------------------------------------------------------------------- + +// cleanPath returns the canonical path for p, eliminating . and .. elements. +// Borrowed from the net/http package. +func cleanPath(p string) string { + if p == "" { + return "/" + } + if p[0] != '/' { + p = "/" + p + } + np := path.Clean(p) + // path.Clean removes trailing slash except for root; + // put the trailing slash back if necessary. + if p[len(p)-1] == '/' && np != "/" { + np += "/" + } + return np +} + +// uniqueVars returns an error if two slices contain duplicated strings. +func uniqueVars(s1, s2 []string) error { + for _, v1 := range s1 { + for _, v2 := range s2 { + if v1 == v2 { + return fmt.Errorf("mux: duplicated route variable %q", v2) + } + } + } + return nil +} + +// mapFromPairs converts variadic string parameters to a string map. +func mapFromPairs(pairs ...string) (map[string]string, error) { + length := len(pairs) + if length%2 != 0 { + return nil, fmt.Errorf( + "mux: number of parameters must be multiple of 2, got %v", pairs) + } + m := make(map[string]string, length/2) + for i := 0; i < length; i += 2 { + m[pairs[i]] = pairs[i+1] + } + return m, nil +} + +// matchInArray returns true if the given string value is in the array. +func matchInArray(arr []string, value string) bool { + for _, v := range arr { + if v == value { + return true + } + } + return false +} + +// matchMap returns true if the given key/value pairs exist in a given map. +func matchMap(toCheck map[string]string, toMatch map[string][]string, + canonicalKey bool) bool { + for k, v := range toCheck { + // Check if key exists. + if canonicalKey { + k = http.CanonicalHeaderKey(k) + } + if values := toMatch[k]; values == nil { + return false + } else if v != "" { + // If value was defined as an empty string we only check that the + // key exists. Otherwise we also check for equality. + valueExists := false + for _, value := range values { + if v == value { + valueExists = true + break + } + } + if !valueExists { + return false + } + } + } + return true +} diff --git a/Godeps/_workspace/src/github.com/gorilla/mux/mux_test.go b/Godeps/_workspace/src/github.com/gorilla/mux/mux_test.go new file mode 100644 index 00000000000..075dedba48e --- /dev/null +++ b/Godeps/_workspace/src/github.com/gorilla/mux/mux_test.go @@ -0,0 +1,1003 @@ +// Copyright 2012 The Gorilla Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package mux + +import ( + "fmt" + "net/http" + "testing" + + "github.com/gorilla/context" +) + +type routeTest struct { + title string // title of the test + route *Route // the route being tested + request *http.Request // a request to test the route + vars map[string]string // the expected vars of the match + host string // the expected host of the match + path string // the expected path of the match + shouldMatch bool // whether the request is expected to match the route at all + shouldRedirect bool // whether the request should result in a redirect +} + +func TestHost(t *testing.T) { + // newRequestHost a new request with a method, url, and host header + newRequestHost := func(method, url, host string) *http.Request { + req, err := http.NewRequest(method, url, nil) + if err != nil { + panic(err) + } + req.Host = host + return req + } + + tests := []routeTest{ + { + title: "Host route match", + route: new(Route).Host("aaa.bbb.ccc"), + request: newRequest("GET", "http://aaa.bbb.ccc/111/222/333"), + vars: map[string]string{}, + host: "aaa.bbb.ccc", + path: "", + shouldMatch: true, + }, + { + title: "Host route, wrong host in request URL", + route: new(Route).Host("aaa.bbb.ccc"), + request: newRequest("GET", "http://aaa.222.ccc/111/222/333"), + vars: map[string]string{}, + host: "aaa.bbb.ccc", + path: "", + shouldMatch: false, + }, + { + title: "Host route with port, match", + route: new(Route).Host("aaa.bbb.ccc:1234"), + request: newRequest("GET", "http://aaa.bbb.ccc:1234/111/222/333"), + vars: map[string]string{}, + host: "aaa.bbb.ccc:1234", + path: "", + shouldMatch: true, + }, + { + title: "Host route with port, wrong port in request URL", + route: new(Route).Host("aaa.bbb.ccc:1234"), + request: newRequest("GET", "http://aaa.bbb.ccc:9999/111/222/333"), + vars: map[string]string{}, + host: "aaa.bbb.ccc:1234", + path: "", + shouldMatch: false, + }, + { + title: "Host route, match with host in request header", + route: new(Route).Host("aaa.bbb.ccc"), + request: newRequestHost("GET", "/111/222/333", "aaa.bbb.ccc"), + vars: map[string]string{}, + host: "aaa.bbb.ccc", + path: "", + shouldMatch: true, + }, + { + title: "Host route, wrong host in request header", + route: new(Route).Host("aaa.bbb.ccc"), + request: newRequestHost("GET", "/111/222/333", "aaa.222.ccc"), + vars: map[string]string{}, + host: "aaa.bbb.ccc", + path: "", + shouldMatch: false, + }, + // BUG {new(Route).Host("aaa.bbb.ccc:1234"), newRequestHost("GET", "/111/222/333", "aaa.bbb.ccc:1234"), map[string]string{}, "aaa.bbb.ccc:1234", "", true}, + { + title: "Host route with port, wrong host in request header", + route: new(Route).Host("aaa.bbb.ccc:1234"), + request: newRequestHost("GET", "/111/222/333", "aaa.bbb.ccc:9999"), + vars: map[string]string{}, + host: "aaa.bbb.ccc:1234", + path: "", + shouldMatch: false, + }, + { + title: "Host route with pattern, match", + route: new(Route).Host("aaa.{v1:[a-z]{3}}.ccc"), + request: newRequest("GET", "http://aaa.bbb.ccc/111/222/333"), + vars: map[string]string{"v1": "bbb"}, + host: "aaa.bbb.ccc", + path: "", + shouldMatch: true, + }, + { + title: "Host route with pattern, wrong host in request URL", + route: new(Route).Host("aaa.{v1:[a-z]{3}}.ccc"), + request: newRequest("GET", "http://aaa.222.ccc/111/222/333"), + vars: map[string]string{"v1": "bbb"}, + host: "aaa.bbb.ccc", + path: "", + shouldMatch: false, + }, + { + title: "Host route with multiple patterns, match", + route: new(Route).Host("{v1:[a-z]{3}}.{v2:[a-z]{3}}.{v3:[a-z]{3}}"), + request: newRequest("GET", "http://aaa.bbb.ccc/111/222/333"), + vars: map[string]string{"v1": "aaa", "v2": "bbb", "v3": "ccc"}, + host: "aaa.bbb.ccc", + path: "", + shouldMatch: true, + }, + { + title: "Host route with multiple patterns, wrong host in request URL", + route: new(Route).Host("{v1:[a-z]{3}}.{v2:[a-z]{3}}.{v3:[a-z]{3}}"), + request: newRequest("GET", "http://aaa.222.ccc/111/222/333"), + vars: map[string]string{"v1": "aaa", "v2": "bbb", "v3": "ccc"}, + host: "aaa.bbb.ccc", + path: "", + shouldMatch: false, + }, + { + title: "Path route with single pattern with pipe, match", + route: new(Route).Path("/{category:a|b/c}"), + request: newRequest("GET", "http://localhost/a"), + vars: map[string]string{"category": "a"}, + host: "", + path: "/a", + shouldMatch: true, + }, + { + title: "Path route with single pattern with pipe, match", + route: new(Route).Path("/{category:a|b/c}"), + request: newRequest("GET", "http://localhost/b/c"), + vars: map[string]string{"category": "b/c"}, + host: "", + path: "/b/c", + shouldMatch: true, + }, + { + title: "Path route with multiple patterns with pipe, match", + route: new(Route).Path("/{category:a|b/c}/{product}/{id:[0-9]+}"), + request: newRequest("GET", "http://localhost/a/product_name/1"), + vars: map[string]string{"category": "a", "product": "product_name", "id": "1"}, + host: "", + path: "/a/product_name/1", + shouldMatch: true, + }, + } + for _, test := range tests { + testRoute(t, test) + } +} + +func TestPath(t *testing.T) { + tests := []routeTest{ + { + title: "Path route, match", + route: new(Route).Path("/111/222/333"), + request: newRequest("GET", "http://localhost/111/222/333"), + vars: map[string]string{}, + host: "", + path: "/111/222/333", + shouldMatch: true, + }, + { + title: "Path route, match with trailing slash in request and path", + route: new(Route).Path("/111/"), + request: newRequest("GET", "http://localhost/111/"), + vars: map[string]string{}, + host: "", + path: "/111/", + shouldMatch: true, + }, + { + title: "Path route, do not match with trailing slash in path", + route: new(Route).Path("/111/"), + request: newRequest("GET", "http://localhost/111"), + vars: map[string]string{}, + host: "", + path: "/111", + shouldMatch: false, + }, + { + title: "Path route, do not match with trailing slash in request", + route: new(Route).Path("/111"), + request: newRequest("GET", "http://localhost/111/"), + vars: map[string]string{}, + host: "", + path: "/111/", + shouldMatch: false, + }, + { + title: "Path route, wrong path in request in request URL", + route: new(Route).Path("/111/222/333"), + request: newRequest("GET", "http://localhost/1/2/3"), + vars: map[string]string{}, + host: "", + path: "/111/222/333", + shouldMatch: false, + }, + { + title: "Path route with pattern, match", + route: new(Route).Path("/111/{v1:[0-9]{3}}/333"), + request: newRequest("GET", "http://localhost/111/222/333"), + vars: map[string]string{"v1": "222"}, + host: "", + path: "/111/222/333", + shouldMatch: true, + }, + { + title: "Path route with pattern, URL in request does not match", + route: new(Route).Path("/111/{v1:[0-9]{3}}/333"), + request: newRequest("GET", "http://localhost/111/aaa/333"), + vars: map[string]string{"v1": "222"}, + host: "", + path: "/111/222/333", + shouldMatch: false, + }, + { + title: "Path route with multiple patterns, match", + route: new(Route).Path("/{v1:[0-9]{3}}/{v2:[0-9]{3}}/{v3:[0-9]{3}}"), + request: newRequest("GET", "http://localhost/111/222/333"), + vars: map[string]string{"v1": "111", "v2": "222", "v3": "333"}, + host: "", + path: "/111/222/333", + shouldMatch: true, + }, + { + title: "Path route with multiple patterns, URL in request does not match", + route: new(Route).Path("/{v1:[0-9]{3}}/{v2:[0-9]{3}}/{v3:[0-9]{3}}"), + request: newRequest("GET", "http://localhost/111/aaa/333"), + vars: map[string]string{"v1": "111", "v2": "222", "v3": "333"}, + host: "", + path: "/111/222/333", + shouldMatch: false, + }, + } + + for _, test := range tests { + testRoute(t, test) + } +} + +func TestPathPrefix(t *testing.T) { + tests := []routeTest{ + { + title: "PathPrefix route, match", + route: new(Route).PathPrefix("/111"), + request: newRequest("GET", "http://localhost/111/222/333"), + vars: map[string]string{}, + host: "", + path: "/111", + shouldMatch: true, + }, + { + title: "PathPrefix route, match substring", + route: new(Route).PathPrefix("/1"), + request: newRequest("GET", "http://localhost/111/222/333"), + vars: map[string]string{}, + host: "", + path: "/1", + shouldMatch: true, + }, + { + title: "PathPrefix route, URL prefix in request does not match", + route: new(Route).PathPrefix("/111"), + request: newRequest("GET", "http://localhost/1/2/3"), + vars: map[string]string{}, + host: "", + path: "/111", + shouldMatch: false, + }, + { + title: "PathPrefix route with pattern, match", + route: new(Route).PathPrefix("/111/{v1:[0-9]{3}}"), + request: newRequest("GET", "http://localhost/111/222/333"), + vars: map[string]string{"v1": "222"}, + host: "", + path: "/111/222", + shouldMatch: true, + }, + { + title: "PathPrefix route with pattern, URL prefix in request does not match", + route: new(Route).PathPrefix("/111/{v1:[0-9]{3}}"), + request: newRequest("GET", "http://localhost/111/aaa/333"), + vars: map[string]string{"v1": "222"}, + host: "", + path: "/111/222", + shouldMatch: false, + }, + { + title: "PathPrefix route with multiple patterns, match", + route: new(Route).PathPrefix("/{v1:[0-9]{3}}/{v2:[0-9]{3}}"), + request: newRequest("GET", "http://localhost/111/222/333"), + vars: map[string]string{"v1": "111", "v2": "222"}, + host: "", + path: "/111/222", + shouldMatch: true, + }, + { + title: "PathPrefix route with multiple patterns, URL prefix in request does not match", + route: new(Route).PathPrefix("/{v1:[0-9]{3}}/{v2:[0-9]{3}}"), + request: newRequest("GET", "http://localhost/111/aaa/333"), + vars: map[string]string{"v1": "111", "v2": "222"}, + host: "", + path: "/111/222", + shouldMatch: false, + }, + } + + for _, test := range tests { + testRoute(t, test) + } +} + +func TestHostPath(t *testing.T) { + tests := []routeTest{ + { + title: "Host and Path route, match", + route: new(Route).Host("aaa.bbb.ccc").Path("/111/222/333"), + request: newRequest("GET", "http://aaa.bbb.ccc/111/222/333"), + vars: map[string]string{}, + host: "", + path: "", + shouldMatch: true, + }, + { + title: "Host and Path route, wrong host in request URL", + route: new(Route).Host("aaa.bbb.ccc").Path("/111/222/333"), + request: newRequest("GET", "http://aaa.222.ccc/111/222/333"), + vars: map[string]string{}, + host: "", + path: "", + shouldMatch: false, + }, + { + title: "Host and Path route with pattern, match", + route: new(Route).Host("aaa.{v1:[a-z]{3}}.ccc").Path("/111/{v2:[0-9]{3}}/333"), + request: newRequest("GET", "http://aaa.bbb.ccc/111/222/333"), + vars: map[string]string{"v1": "bbb", "v2": "222"}, + host: "aaa.bbb.ccc", + path: "/111/222/333", + shouldMatch: true, + }, + { + title: "Host and Path route with pattern, URL in request does not match", + route: new(Route).Host("aaa.{v1:[a-z]{3}}.ccc").Path("/111/{v2:[0-9]{3}}/333"), + request: newRequest("GET", "http://aaa.222.ccc/111/222/333"), + vars: map[string]string{"v1": "bbb", "v2": "222"}, + host: "aaa.bbb.ccc", + path: "/111/222/333", + shouldMatch: false, + }, + { + title: "Host and Path route with multiple patterns, match", + route: new(Route).Host("{v1:[a-z]{3}}.{v2:[a-z]{3}}.{v3:[a-z]{3}}").Path("/{v4:[0-9]{3}}/{v5:[0-9]{3}}/{v6:[0-9]{3}}"), + request: newRequest("GET", "http://aaa.bbb.ccc/111/222/333"), + vars: map[string]string{"v1": "aaa", "v2": "bbb", "v3": "ccc", "v4": "111", "v5": "222", "v6": "333"}, + host: "aaa.bbb.ccc", + path: "/111/222/333", + shouldMatch: true, + }, + { + title: "Host and Path route with multiple patterns, URL in request does not match", + route: new(Route).Host("{v1:[a-z]{3}}.{v2:[a-z]{3}}.{v3:[a-z]{3}}").Path("/{v4:[0-9]{3}}/{v5:[0-9]{3}}/{v6:[0-9]{3}}"), + request: newRequest("GET", "http://aaa.222.ccc/111/222/333"), + vars: map[string]string{"v1": "aaa", "v2": "bbb", "v3": "ccc", "v4": "111", "v5": "222", "v6": "333"}, + host: "aaa.bbb.ccc", + path: "/111/222/333", + shouldMatch: false, + }, + } + + for _, test := range tests { + testRoute(t, test) + } +} + +func TestHeaders(t *testing.T) { + // newRequestHeaders creates a new request with a method, url, and headers + newRequestHeaders := func(method, url string, headers map[string]string) *http.Request { + req, err := http.NewRequest(method, url, nil) + if err != nil { + panic(err) + } + for k, v := range headers { + req.Header.Add(k, v) + } + return req + } + + tests := []routeTest{ + { + title: "Headers route, match", + route: new(Route).Headers("foo", "bar", "baz", "ding"), + request: newRequestHeaders("GET", "http://localhost", map[string]string{"foo": "bar", "baz": "ding"}), + vars: map[string]string{}, + host: "", + path: "", + shouldMatch: true, + }, + { + title: "Headers route, bad header values", + route: new(Route).Headers("foo", "bar", "baz", "ding"), + request: newRequestHeaders("GET", "http://localhost", map[string]string{"foo": "bar", "baz": "dong"}), + vars: map[string]string{}, + host: "", + path: "", + shouldMatch: false, + }, + } + + for _, test := range tests { + testRoute(t, test) + } + +} + +func TestMethods(t *testing.T) { + tests := []routeTest{ + { + title: "Methods route, match GET", + route: new(Route).Methods("GET", "POST"), + request: newRequest("GET", "http://localhost"), + vars: map[string]string{}, + host: "", + path: "", + shouldMatch: true, + }, + { + title: "Methods route, match POST", + route: new(Route).Methods("GET", "POST"), + request: newRequest("POST", "http://localhost"), + vars: map[string]string{}, + host: "", + path: "", + shouldMatch: true, + }, + { + title: "Methods route, bad method", + route: new(Route).Methods("GET", "POST"), + request: newRequest("PUT", "http://localhost"), + vars: map[string]string{}, + host: "", + path: "", + shouldMatch: false, + }, + } + + for _, test := range tests { + testRoute(t, test) + } +} + +func TestQueries(t *testing.T) { + tests := []routeTest{ + { + title: "Queries route, match", + route: new(Route).Queries("foo", "bar", "baz", "ding"), + request: newRequest("GET", "http://localhost?foo=bar&baz=ding"), + vars: map[string]string{}, + host: "", + path: "", + shouldMatch: true, + }, + { + title: "Queries route, match with a query string", + route: new(Route).Host("www.example.com").Path("/api").Queries("foo", "bar", "baz", "ding"), + request: newRequest("GET", "http://www.example.com/api?foo=bar&baz=ding"), + vars: map[string]string{}, + host: "", + path: "", + shouldMatch: true, + }, + { + title: "Queries route, match with a query string out of order", + route: new(Route).Host("www.example.com").Path("/api").Queries("foo", "bar", "baz", "ding"), + request: newRequest("GET", "http://www.example.com/api?baz=ding&foo=bar"), + vars: map[string]string{}, + host: "", + path: "", + shouldMatch: true, + }, + { + title: "Queries route, bad query", + route: new(Route).Queries("foo", "bar", "baz", "ding"), + request: newRequest("GET", "http://localhost?foo=bar&baz=dong"), + vars: map[string]string{}, + host: "", + path: "", + shouldMatch: false, + }, + { + title: "Queries route with pattern, match", + route: new(Route).Queries("foo", "{v1}"), + request: newRequest("GET", "http://localhost?foo=bar"), + vars: map[string]string{"v1": "bar"}, + host: "", + path: "", + shouldMatch: true, + }, + { + title: "Queries route with multiple patterns, match", + route: new(Route).Queries("foo", "{v1}", "baz", "{v2}"), + request: newRequest("GET", "http://localhost?foo=bar&baz=ding"), + vars: map[string]string{"v1": "bar", "v2": "ding"}, + host: "", + path: "", + shouldMatch: true, + }, + { + title: "Queries route with regexp pattern, match", + route: new(Route).Queries("foo", "{v1:[0-9]+}"), + request: newRequest("GET", "http://localhost?foo=10"), + vars: map[string]string{"v1": "10"}, + host: "", + path: "", + shouldMatch: true, + }, + { + title: "Queries route with regexp pattern, regexp does not match", + route: new(Route).Queries("foo", "{v1:[0-9]+}"), + request: newRequest("GET", "http://localhost?foo=a"), + vars: map[string]string{}, + host: "", + path: "", + shouldMatch: false, + }, + } + + for _, test := range tests { + testRoute(t, test) + } +} + +func TestSchemes(t *testing.T) { + tests := []routeTest{ + // Schemes + { + title: "Schemes route, match https", + route: new(Route).Schemes("https", "ftp"), + request: newRequest("GET", "https://localhost"), + vars: map[string]string{}, + host: "", + path: "", + shouldMatch: true, + }, + { + title: "Schemes route, match ftp", + route: new(Route).Schemes("https", "ftp"), + request: newRequest("GET", "ftp://localhost"), + vars: map[string]string{}, + host: "", + path: "", + shouldMatch: true, + }, + { + title: "Schemes route, bad scheme", + route: new(Route).Schemes("https", "ftp"), + request: newRequest("GET", "http://localhost"), + vars: map[string]string{}, + host: "", + path: "", + shouldMatch: false, + }, + } + for _, test := range tests { + testRoute(t, test) + } +} + +func TestMatcherFunc(t *testing.T) { + m := func(r *http.Request, m *RouteMatch) bool { + if r.URL.Host == "aaa.bbb.ccc" { + return true + } + return false + } + + tests := []routeTest{ + { + title: "MatchFunc route, match", + route: new(Route).MatcherFunc(m), + request: newRequest("GET", "http://aaa.bbb.ccc"), + vars: map[string]string{}, + host: "", + path: "", + shouldMatch: true, + }, + { + title: "MatchFunc route, non-match", + route: new(Route).MatcherFunc(m), + request: newRequest("GET", "http://aaa.222.ccc"), + vars: map[string]string{}, + host: "", + path: "", + shouldMatch: false, + }, + } + + for _, test := range tests { + testRoute(t, test) + } +} + +func TestBuildVarsFunc(t *testing.T) { + tests := []routeTest{ + { + title: "BuildVarsFunc set on route", + route: new(Route).Path(`/111/{v1:\d}{v2:.*}`).BuildVarsFunc(func(vars map[string]string) map[string]string { + vars["v1"] = "3" + vars["v2"] = "a" + return vars + }), + request: newRequest("GET", "http://localhost/111/2"), + path: "/111/3a", + shouldMatch: true, + }, + { + title: "BuildVarsFunc set on route and parent route", + route: new(Route).PathPrefix(`/{v1:\d}`).BuildVarsFunc(func(vars map[string]string) map[string]string { + vars["v1"] = "2" + return vars + }).Subrouter().Path(`/{v2:\w}`).BuildVarsFunc(func(vars map[string]string) map[string]string { + vars["v2"] = "b" + return vars + }), + request: newRequest("GET", "http://localhost/1/a"), + path: "/2/b", + shouldMatch: true, + }, + } + + for _, test := range tests { + testRoute(t, test) + } +} + +func TestSubRouter(t *testing.T) { + subrouter1 := new(Route).Host("{v1:[a-z]+}.google.com").Subrouter() + subrouter2 := new(Route).PathPrefix("/foo/{v1}").Subrouter() + + tests := []routeTest{ + { + route: subrouter1.Path("/{v2:[a-z]+}"), + request: newRequest("GET", "http://aaa.google.com/bbb"), + vars: map[string]string{"v1": "aaa", "v2": "bbb"}, + host: "aaa.google.com", + path: "/bbb", + shouldMatch: true, + }, + { + route: subrouter1.Path("/{v2:[a-z]+}"), + request: newRequest("GET", "http://111.google.com/111"), + vars: map[string]string{"v1": "aaa", "v2": "bbb"}, + host: "aaa.google.com", + path: "/bbb", + shouldMatch: false, + }, + { + route: subrouter2.Path("/baz/{v2}"), + request: newRequest("GET", "http://localhost/foo/bar/baz/ding"), + vars: map[string]string{"v1": "bar", "v2": "ding"}, + host: "", + path: "/foo/bar/baz/ding", + shouldMatch: true, + }, + { + route: subrouter2.Path("/baz/{v2}"), + request: newRequest("GET", "http://localhost/foo/bar"), + vars: map[string]string{"v1": "bar", "v2": "ding"}, + host: "", + path: "/foo/bar/baz/ding", + shouldMatch: false, + }, + } + + for _, test := range tests { + testRoute(t, test) + } +} + +func TestNamedRoutes(t *testing.T) { + r1 := NewRouter() + r1.NewRoute().Name("a") + r1.NewRoute().Name("b") + r1.NewRoute().Name("c") + + r2 := r1.NewRoute().Subrouter() + r2.NewRoute().Name("d") + r2.NewRoute().Name("e") + r2.NewRoute().Name("f") + + r3 := r2.NewRoute().Subrouter() + r3.NewRoute().Name("g") + r3.NewRoute().Name("h") + r3.NewRoute().Name("i") + + if r1.namedRoutes == nil || len(r1.namedRoutes) != 9 { + t.Errorf("Expected 9 named routes, got %v", r1.namedRoutes) + } else if r1.Get("i") == nil { + t.Errorf("Subroute name not registered") + } +} + +func TestStrictSlash(t *testing.T) { + r := NewRouter() + r.StrictSlash(true) + + tests := []routeTest{ + { + title: "Redirect path without slash", + route: r.NewRoute().Path("/111/"), + request: newRequest("GET", "http://localhost/111"), + vars: map[string]string{}, + host: "", + path: "/111/", + shouldMatch: true, + shouldRedirect: true, + }, + { + title: "Do not redirect path with slash", + route: r.NewRoute().Path("/111/"), + request: newRequest("GET", "http://localhost/111/"), + vars: map[string]string{}, + host: "", + path: "/111/", + shouldMatch: true, + shouldRedirect: false, + }, + { + title: "Redirect path with slash", + route: r.NewRoute().Path("/111"), + request: newRequest("GET", "http://localhost/111/"), + vars: map[string]string{}, + host: "", + path: "/111", + shouldMatch: true, + shouldRedirect: true, + }, + { + title: "Do not redirect path without slash", + route: r.NewRoute().Path("/111"), + request: newRequest("GET", "http://localhost/111"), + vars: map[string]string{}, + host: "", + path: "/111", + shouldMatch: true, + shouldRedirect: false, + }, + { + title: "Propagate StrictSlash to subrouters", + route: r.NewRoute().PathPrefix("/static/").Subrouter().Path("/images/"), + request: newRequest("GET", "http://localhost/static/images"), + vars: map[string]string{}, + host: "", + path: "/static/images/", + shouldMatch: true, + shouldRedirect: true, + }, + { + title: "Ignore StrictSlash for path prefix", + route: r.NewRoute().PathPrefix("/static/"), + request: newRequest("GET", "http://localhost/static/logo.png"), + vars: map[string]string{}, + host: "", + path: "/static/", + shouldMatch: true, + shouldRedirect: false, + }, + } + + for _, test := range tests { + testRoute(t, test) + } +} + +// ---------------------------------------------------------------------------- +// Helpers +// ---------------------------------------------------------------------------- + +func getRouteTemplate(route *Route) string { + host, path := "none", "none" + if route.regexp != nil { + if route.regexp.host != nil { + host = route.regexp.host.template + } + if route.regexp.path != nil { + path = route.regexp.path.template + } + } + return fmt.Sprintf("Host: %v, Path: %v", host, path) +} + +func testRoute(t *testing.T, test routeTest) { + request := test.request + route := test.route + vars := test.vars + shouldMatch := test.shouldMatch + host := test.host + path := test.path + url := test.host + test.path + shouldRedirect := test.shouldRedirect + + var match RouteMatch + ok := route.Match(request, &match) + if ok != shouldMatch { + msg := "Should match" + if !shouldMatch { + msg = "Should not match" + } + t.Errorf("(%v) %v:\nRoute: %#v\nRequest: %#v\nVars: %v\n", test.title, msg, route, request, vars) + return + } + if shouldMatch { + if test.vars != nil && !stringMapEqual(test.vars, match.Vars) { + t.Errorf("(%v) Vars not equal: expected %v, got %v", test.title, vars, match.Vars) + return + } + if host != "" { + u, _ := test.route.URLHost(mapToPairs(match.Vars)...) + if host != u.Host { + t.Errorf("(%v) URLHost not equal: expected %v, got %v -- %v", test.title, host, u.Host, getRouteTemplate(route)) + return + } + } + if path != "" { + u, _ := route.URLPath(mapToPairs(match.Vars)...) + if path != u.Path { + t.Errorf("(%v) URLPath not equal: expected %v, got %v -- %v", test.title, path, u.Path, getRouteTemplate(route)) + return + } + } + if url != "" { + u, _ := route.URL(mapToPairs(match.Vars)...) + if url != u.Host+u.Path { + t.Errorf("(%v) URL not equal: expected %v, got %v -- %v", test.title, url, u.Host+u.Path, getRouteTemplate(route)) + return + } + } + if shouldRedirect && match.Handler == nil { + t.Errorf("(%v) Did not redirect", test.title) + return + } + if !shouldRedirect && match.Handler != nil { + t.Errorf("(%v) Unexpected redirect", test.title) + return + } + } +} + +// Tests that the context is cleared or not cleared properly depending on +// the configuration of the router +func TestKeepContext(t *testing.T) { + func1 := func(w http.ResponseWriter, r *http.Request) {} + + r := NewRouter() + r.HandleFunc("/", func1).Name("func1") + + req, _ := http.NewRequest("GET", "http://localhost/", nil) + context.Set(req, "t", 1) + + res := new(http.ResponseWriter) + r.ServeHTTP(*res, req) + + if _, ok := context.GetOk(req, "t"); ok { + t.Error("Context should have been cleared at end of request") + } + + r.KeepContext = true + + req, _ = http.NewRequest("GET", "http://localhost/", nil) + context.Set(req, "t", 1) + + r.ServeHTTP(*res, req) + if _, ok := context.GetOk(req, "t"); !ok { + t.Error("Context should NOT have been cleared at end of request") + } + +} + +type TestA301ResponseWriter struct { + hh http.Header + status int +} + +func (ho TestA301ResponseWriter) Header() http.Header { + return http.Header(ho.hh) +} + +func (ho TestA301ResponseWriter) Write(b []byte) (int, error) { + return 0, nil +} + +func (ho TestA301ResponseWriter) WriteHeader(code int) { + ho.status = code +} + +func Test301Redirect(t *testing.T) { + m := make(http.Header) + + func1 := func(w http.ResponseWriter, r *http.Request) {} + func2 := func(w http.ResponseWriter, r *http.Request) {} + + r := NewRouter() + r.HandleFunc("/api/", func2).Name("func2") + r.HandleFunc("/", func1).Name("func1") + + req, _ := http.NewRequest("GET", "http://localhost//api/?abc=def", nil) + + res := TestA301ResponseWriter{ + hh: m, + status: 0, + } + r.ServeHTTP(&res, req) + + if "http://localhost/api/?abc=def" != res.hh["Location"][0] { + t.Errorf("Should have complete URL with query string") + } +} + +// https://plus.google.com/101022900381697718949/posts/eWy6DjFJ6uW +func TestSubrouterHeader(t *testing.T) { + expected := "func1 response" + func1 := func(w http.ResponseWriter, r *http.Request) { + fmt.Fprint(w, expected) + } + func2 := func(http.ResponseWriter, *http.Request) {} + + r := NewRouter() + s := r.Headers("SomeSpecialHeader", "").Subrouter() + s.HandleFunc("/", func1).Name("func1") + r.HandleFunc("/", func2).Name("func2") + + req, _ := http.NewRequest("GET", "http://localhost/", nil) + req.Header.Add("SomeSpecialHeader", "foo") + match := new(RouteMatch) + matched := r.Match(req, match) + if !matched { + t.Errorf("Should match request") + } + if match.Route.GetName() != "func1" { + t.Errorf("Expecting func1 handler, got %s", match.Route.GetName()) + } + resp := NewRecorder() + match.Handler.ServeHTTP(resp, req) + if resp.Body.String() != expected { + t.Errorf("Expecting %q", expected) + } +} + +// mapToPairs converts a string map to a slice of string pairs +func mapToPairs(m map[string]string) []string { + var i int + p := make([]string, len(m)*2) + for k, v := range m { + p[i] = k + p[i+1] = v + i += 2 + } + return p +} + +// stringMapEqual checks the equality of two string maps +func stringMapEqual(m1, m2 map[string]string) bool { + nil1 := m1 == nil + nil2 := m2 == nil + if nil1 != nil2 || len(m1) != len(m2) { + return false + } + for k, v := range m1 { + if v != m2[k] { + return false + } + } + return true +} + +// newRequest is a helper function to create a new request with a method and url +func newRequest(method, url string) *http.Request { + req, err := http.NewRequest(method, url, nil) + if err != nil { + panic(err) + } + return req +} diff --git a/Godeps/_workspace/src/github.com/gorilla/mux/old_test.go b/Godeps/_workspace/src/github.com/gorilla/mux/old_test.go new file mode 100644 index 00000000000..1f7c190c0f9 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gorilla/mux/old_test.go @@ -0,0 +1,714 @@ +// Old tests ported to Go1. This is a mess. Want to drop it one day. + +// Copyright 2011 Gorilla Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package mux + +import ( + "bytes" + "net/http" + "testing" +) + +// ---------------------------------------------------------------------------- +// ResponseRecorder +// ---------------------------------------------------------------------------- +// Copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// ResponseRecorder is an implementation of http.ResponseWriter that +// records its mutations for later inspection in tests. +type ResponseRecorder struct { + Code int // the HTTP response code from WriteHeader + HeaderMap http.Header // the HTTP response headers + Body *bytes.Buffer // if non-nil, the bytes.Buffer to append written data to + Flushed bool +} + +// NewRecorder returns an initialized ResponseRecorder. +func NewRecorder() *ResponseRecorder { + return &ResponseRecorder{ + HeaderMap: make(http.Header), + Body: new(bytes.Buffer), + } +} + +// DefaultRemoteAddr is the default remote address to return in RemoteAddr if +// an explicit DefaultRemoteAddr isn't set on ResponseRecorder. +const DefaultRemoteAddr = "1.2.3.4" + +// Header returns the response headers. +func (rw *ResponseRecorder) Header() http.Header { + return rw.HeaderMap +} + +// Write always succeeds and writes to rw.Body, if not nil. +func (rw *ResponseRecorder) Write(buf []byte) (int, error) { + if rw.Body != nil { + rw.Body.Write(buf) + } + if rw.Code == 0 { + rw.Code = http.StatusOK + } + return len(buf), nil +} + +// WriteHeader sets rw.Code. +func (rw *ResponseRecorder) WriteHeader(code int) { + rw.Code = code +} + +// Flush sets rw.Flushed to true. +func (rw *ResponseRecorder) Flush() { + rw.Flushed = true +} + +// ---------------------------------------------------------------------------- + +func TestRouteMatchers(t *testing.T) { + var scheme, host, path, query, method string + var headers map[string]string + var resultVars map[bool]map[string]string + + router := NewRouter() + router.NewRoute().Host("{var1}.google.com"). + Path("/{var2:[a-z]+}/{var3:[0-9]+}"). + Queries("foo", "bar"). + Methods("GET"). + Schemes("https"). + Headers("x-requested-with", "XMLHttpRequest") + router.NewRoute().Host("www.{var4}.com"). + PathPrefix("/foo/{var5:[a-z]+}/{var6:[0-9]+}"). + Queries("baz", "ding"). + Methods("POST"). + Schemes("http"). + Headers("Content-Type", "application/json") + + reset := func() { + // Everything match. + scheme = "https" + host = "www.google.com" + path = "/product/42" + query = "?foo=bar" + method = "GET" + headers = map[string]string{"X-Requested-With": "XMLHttpRequest"} + resultVars = map[bool]map[string]string{ + true: {"var1": "www", "var2": "product", "var3": "42"}, + false: {}, + } + } + + reset2 := func() { + // Everything match. + scheme = "http" + host = "www.google.com" + path = "/foo/product/42/path/that/is/ignored" + query = "?baz=ding" + method = "POST" + headers = map[string]string{"Content-Type": "application/json"} + resultVars = map[bool]map[string]string{ + true: {"var4": "google", "var5": "product", "var6": "42"}, + false: {}, + } + } + + match := func(shouldMatch bool) { + url := scheme + "://" + host + path + query + request, _ := http.NewRequest(method, url, nil) + for key, value := range headers { + request.Header.Add(key, value) + } + + var routeMatch RouteMatch + matched := router.Match(request, &routeMatch) + if matched != shouldMatch { + // Need better messages. :) + if matched { + t.Errorf("Should match.") + } else { + t.Errorf("Should not match.") + } + } + + if matched { + currentRoute := routeMatch.Route + if currentRoute == nil { + t.Errorf("Expected a current route.") + } + vars := routeMatch.Vars + expectedVars := resultVars[shouldMatch] + if len(vars) != len(expectedVars) { + t.Errorf("Expected vars: %v Got: %v.", expectedVars, vars) + } + for name, value := range vars { + if expectedVars[name] != value { + t.Errorf("Expected vars: %v Got: %v.", expectedVars, vars) + } + } + } + } + + // 1st route -------------------------------------------------------------- + + // Everything match. + reset() + match(true) + + // Scheme doesn't match. + reset() + scheme = "http" + match(false) + + // Host doesn't match. + reset() + host = "www.mygoogle.com" + match(false) + + // Path doesn't match. + reset() + path = "/product/notdigits" + match(false) + + // Query doesn't match. + reset() + query = "?foo=baz" + match(false) + + // Method doesn't match. + reset() + method = "POST" + match(false) + + // Header doesn't match. + reset() + headers = map[string]string{} + match(false) + + // Everything match, again. + reset() + match(true) + + // 2nd route -------------------------------------------------------------- + + // Everything match. + reset2() + match(true) + + // Scheme doesn't match. + reset2() + scheme = "https" + match(false) + + // Host doesn't match. + reset2() + host = "sub.google.com" + match(false) + + // Path doesn't match. + reset2() + path = "/bar/product/42" + match(false) + + // Query doesn't match. + reset2() + query = "?foo=baz" + match(false) + + // Method doesn't match. + reset2() + method = "GET" + match(false) + + // Header doesn't match. + reset2() + headers = map[string]string{} + match(false) + + // Everything match, again. + reset2() + match(true) +} + +type headerMatcherTest struct { + matcher headerMatcher + headers map[string]string + result bool +} + +var headerMatcherTests = []headerMatcherTest{ + { + matcher: headerMatcher(map[string]string{"x-requested-with": "XMLHttpRequest"}), + headers: map[string]string{"X-Requested-With": "XMLHttpRequest"}, + result: true, + }, + { + matcher: headerMatcher(map[string]string{"x-requested-with": ""}), + headers: map[string]string{"X-Requested-With": "anything"}, + result: true, + }, + { + matcher: headerMatcher(map[string]string{"x-requested-with": "XMLHttpRequest"}), + headers: map[string]string{}, + result: false, + }, +} + +type hostMatcherTest struct { + matcher *Route + url string + vars map[string]string + result bool +} + +var hostMatcherTests = []hostMatcherTest{ + { + matcher: NewRouter().NewRoute().Host("{foo:[a-z][a-z][a-z]}.{bar:[a-z][a-z][a-z]}.{baz:[a-z][a-z][a-z]}"), + url: "http://abc.def.ghi/", + vars: map[string]string{"foo": "abc", "bar": "def", "baz": "ghi"}, + result: true, + }, + { + matcher: NewRouter().NewRoute().Host("{foo:[a-z][a-z][a-z]}.{bar:[a-z][a-z][a-z]}.{baz:[a-z][a-z][a-z]}"), + url: "http://a.b.c/", + vars: map[string]string{"foo": "abc", "bar": "def", "baz": "ghi"}, + result: false, + }, +} + +type methodMatcherTest struct { + matcher methodMatcher + method string + result bool +} + +var methodMatcherTests = []methodMatcherTest{ + { + matcher: methodMatcher([]string{"GET", "POST", "PUT"}), + method: "GET", + result: true, + }, + { + matcher: methodMatcher([]string{"GET", "POST", "PUT"}), + method: "POST", + result: true, + }, + { + matcher: methodMatcher([]string{"GET", "POST", "PUT"}), + method: "PUT", + result: true, + }, + { + matcher: methodMatcher([]string{"GET", "POST", "PUT"}), + method: "DELETE", + result: false, + }, +} + +type pathMatcherTest struct { + matcher *Route + url string + vars map[string]string + result bool +} + +var pathMatcherTests = []pathMatcherTest{ + { + matcher: NewRouter().NewRoute().Path("/{foo:[0-9][0-9][0-9]}/{bar:[0-9][0-9][0-9]}/{baz:[0-9][0-9][0-9]}"), + url: "http://localhost:8080/123/456/789", + vars: map[string]string{"foo": "123", "bar": "456", "baz": "789"}, + result: true, + }, + { + matcher: NewRouter().NewRoute().Path("/{foo:[0-9][0-9][0-9]}/{bar:[0-9][0-9][0-9]}/{baz:[0-9][0-9][0-9]}"), + url: "http://localhost:8080/1/2/3", + vars: map[string]string{"foo": "123", "bar": "456", "baz": "789"}, + result: false, + }, +} + +type schemeMatcherTest struct { + matcher schemeMatcher + url string + result bool +} + +var schemeMatcherTests = []schemeMatcherTest{ + { + matcher: schemeMatcher([]string{"http", "https"}), + url: "http://localhost:8080/", + result: true, + }, + { + matcher: schemeMatcher([]string{"http", "https"}), + url: "https://localhost:8080/", + result: true, + }, + { + matcher: schemeMatcher([]string{"https"}), + url: "http://localhost:8080/", + result: false, + }, + { + matcher: schemeMatcher([]string{"http"}), + url: "https://localhost:8080/", + result: false, + }, +} + +type urlBuildingTest struct { + route *Route + vars []string + url string +} + +var urlBuildingTests = []urlBuildingTest{ + { + route: new(Route).Host("foo.domain.com"), + vars: []string{}, + url: "http://foo.domain.com", + }, + { + route: new(Route).Host("{subdomain}.domain.com"), + vars: []string{"subdomain", "bar"}, + url: "http://bar.domain.com", + }, + { + route: new(Route).Host("foo.domain.com").Path("/articles"), + vars: []string{}, + url: "http://foo.domain.com/articles", + }, + { + route: new(Route).Path("/articles"), + vars: []string{}, + url: "/articles", + }, + { + route: new(Route).Path("/articles/{category}/{id:[0-9]+}"), + vars: []string{"category", "technology", "id", "42"}, + url: "/articles/technology/42", + }, + { + route: new(Route).Host("{subdomain}.domain.com").Path("/articles/{category}/{id:[0-9]+}"), + vars: []string{"subdomain", "foo", "category", "technology", "id", "42"}, + url: "http://foo.domain.com/articles/technology/42", + }, +} + +func TestHeaderMatcher(t *testing.T) { + for _, v := range headerMatcherTests { + request, _ := http.NewRequest("GET", "http://localhost:8080/", nil) + for key, value := range v.headers { + request.Header.Add(key, value) + } + var routeMatch RouteMatch + result := v.matcher.Match(request, &routeMatch) + if result != v.result { + if v.result { + t.Errorf("%#v: should match %v.", v.matcher, request.Header) + } else { + t.Errorf("%#v: should not match %v.", v.matcher, request.Header) + } + } + } +} + +func TestHostMatcher(t *testing.T) { + for _, v := range hostMatcherTests { + request, _ := http.NewRequest("GET", v.url, nil) + var routeMatch RouteMatch + result := v.matcher.Match(request, &routeMatch) + vars := routeMatch.Vars + if result != v.result { + if v.result { + t.Errorf("%#v: should match %v.", v.matcher, v.url) + } else { + t.Errorf("%#v: should not match %v.", v.matcher, v.url) + } + } + if result { + if len(vars) != len(v.vars) { + t.Errorf("%#v: vars length should be %v, got %v.", v.matcher, len(v.vars), len(vars)) + } + for name, value := range vars { + if v.vars[name] != value { + t.Errorf("%#v: expected value %v for key %v, got %v.", v.matcher, v.vars[name], name, value) + } + } + } else { + if len(vars) != 0 { + t.Errorf("%#v: vars length should be 0, got %v.", v.matcher, len(vars)) + } + } + } +} + +func TestMethodMatcher(t *testing.T) { + for _, v := range methodMatcherTests { + request, _ := http.NewRequest(v.method, "http://localhost:8080/", nil) + var routeMatch RouteMatch + result := v.matcher.Match(request, &routeMatch) + if result != v.result { + if v.result { + t.Errorf("%#v: should match %v.", v.matcher, v.method) + } else { + t.Errorf("%#v: should not match %v.", v.matcher, v.method) + } + } + } +} + +func TestPathMatcher(t *testing.T) { + for _, v := range pathMatcherTests { + request, _ := http.NewRequest("GET", v.url, nil) + var routeMatch RouteMatch + result := v.matcher.Match(request, &routeMatch) + vars := routeMatch.Vars + if result != v.result { + if v.result { + t.Errorf("%#v: should match %v.", v.matcher, v.url) + } else { + t.Errorf("%#v: should not match %v.", v.matcher, v.url) + } + } + if result { + if len(vars) != len(v.vars) { + t.Errorf("%#v: vars length should be %v, got %v.", v.matcher, len(v.vars), len(vars)) + } + for name, value := range vars { + if v.vars[name] != value { + t.Errorf("%#v: expected value %v for key %v, got %v.", v.matcher, v.vars[name], name, value) + } + } + } else { + if len(vars) != 0 { + t.Errorf("%#v: vars length should be 0, got %v.", v.matcher, len(vars)) + } + } + } +} + +func TestSchemeMatcher(t *testing.T) { + for _, v := range schemeMatcherTests { + request, _ := http.NewRequest("GET", v.url, nil) + var routeMatch RouteMatch + result := v.matcher.Match(request, &routeMatch) + if result != v.result { + if v.result { + t.Errorf("%#v: should match %v.", v.matcher, v.url) + } else { + t.Errorf("%#v: should not match %v.", v.matcher, v.url) + } + } + } +} + +func TestUrlBuilding(t *testing.T) { + + for _, v := range urlBuildingTests { + u, _ := v.route.URL(v.vars...) + url := u.String() + if url != v.url { + t.Errorf("expected %v, got %v", v.url, url) + /* + reversePath := "" + reverseHost := "" + if v.route.pathTemplate != nil { + reversePath = v.route.pathTemplate.Reverse + } + if v.route.hostTemplate != nil { + reverseHost = v.route.hostTemplate.Reverse + } + + t.Errorf("%#v:\nexpected: %q\ngot: %q\nreverse path: %q\nreverse host: %q", v.route, v.url, url, reversePath, reverseHost) + */ + } + } + + ArticleHandler := func(w http.ResponseWriter, r *http.Request) { + } + + router := NewRouter() + router.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler).Name("article") + + url, _ := router.Get("article").URL("category", "technology", "id", "42") + expected := "/articles/technology/42" + if url.String() != expected { + t.Errorf("Expected %v, got %v", expected, url.String()) + } +} + +func TestMatchedRouteName(t *testing.T) { + routeName := "stock" + router := NewRouter() + route := router.NewRoute().Path("/products/").Name(routeName) + + url := "http://www.domain.com/products/" + request, _ := http.NewRequest("GET", url, nil) + var rv RouteMatch + ok := router.Match(request, &rv) + + if !ok || rv.Route != route { + t.Errorf("Expected same route, got %+v.", rv.Route) + } + + retName := rv.Route.GetName() + if retName != routeName { + t.Errorf("Expected %q, got %q.", routeName, retName) + } +} + +func TestSubRouting(t *testing.T) { + // Example from docs. + router := NewRouter() + subrouter := router.NewRoute().Host("www.domain.com").Subrouter() + route := subrouter.NewRoute().Path("/products/").Name("products") + + url := "http://www.domain.com/products/" + request, _ := http.NewRequest("GET", url, nil) + var rv RouteMatch + ok := router.Match(request, &rv) + + if !ok || rv.Route != route { + t.Errorf("Expected same route, got %+v.", rv.Route) + } + + u, _ := router.Get("products").URL() + builtUrl := u.String() + // Yay, subroute aware of the domain when building! + if builtUrl != url { + t.Errorf("Expected %q, got %q.", url, builtUrl) + } +} + +func TestVariableNames(t *testing.T) { + route := new(Route).Host("{arg1}.domain.com").Path("/{arg1}/{arg2:[0-9]+}") + if route.err == nil { + t.Errorf("Expected error for duplicated variable names") + } +} + +func TestRedirectSlash(t *testing.T) { + var route *Route + var routeMatch RouteMatch + r := NewRouter() + + r.StrictSlash(false) + route = r.NewRoute() + if route.strictSlash != false { + t.Errorf("Expected false redirectSlash.") + } + + r.StrictSlash(true) + route = r.NewRoute() + if route.strictSlash != true { + t.Errorf("Expected true redirectSlash.") + } + + route = new(Route) + route.strictSlash = true + route.Path("/{arg1}/{arg2:[0-9]+}/") + request, _ := http.NewRequest("GET", "http://localhost/foo/123", nil) + routeMatch = RouteMatch{} + _ = route.Match(request, &routeMatch) + vars := routeMatch.Vars + if vars["arg1"] != "foo" { + t.Errorf("Expected foo.") + } + if vars["arg2"] != "123" { + t.Errorf("Expected 123.") + } + rsp := NewRecorder() + routeMatch.Handler.ServeHTTP(rsp, request) + if rsp.HeaderMap.Get("Location") != "http://localhost/foo/123/" { + t.Errorf("Expected redirect header.") + } + + route = new(Route) + route.strictSlash = true + route.Path("/{arg1}/{arg2:[0-9]+}") + request, _ = http.NewRequest("GET", "http://localhost/foo/123/", nil) + routeMatch = RouteMatch{} + _ = route.Match(request, &routeMatch) + vars = routeMatch.Vars + if vars["arg1"] != "foo" { + t.Errorf("Expected foo.") + } + if vars["arg2"] != "123" { + t.Errorf("Expected 123.") + } + rsp = NewRecorder() + routeMatch.Handler.ServeHTTP(rsp, request) + if rsp.HeaderMap.Get("Location") != "http://localhost/foo/123" { + t.Errorf("Expected redirect header.") + } +} + +// Test for the new regexp library, still not available in stable Go. +func TestNewRegexp(t *testing.T) { + var p *routeRegexp + var matches []string + + tests := map[string]map[string][]string{ + "/{foo:a{2}}": { + "/a": nil, + "/aa": {"aa"}, + "/aaa": nil, + "/aaaa": nil, + }, + "/{foo:a{2,}}": { + "/a": nil, + "/aa": {"aa"}, + "/aaa": {"aaa"}, + "/aaaa": {"aaaa"}, + }, + "/{foo:a{2,3}}": { + "/a": nil, + "/aa": {"aa"}, + "/aaa": {"aaa"}, + "/aaaa": nil, + }, + "/{foo:[a-z]{3}}/{bar:[a-z]{2}}": { + "/a": nil, + "/ab": nil, + "/abc": nil, + "/abcd": nil, + "/abc/ab": {"abc", "ab"}, + "/abc/abc": nil, + "/abcd/ab": nil, + }, + `/{foo:\w{3,}}/{bar:\d{2,}}`: { + "/a": nil, + "/ab": nil, + "/abc": nil, + "/abc/1": nil, + "/abc/12": {"abc", "12"}, + "/abcd/12": {"abcd", "12"}, + "/abcd/123": {"abcd", "123"}, + }, + } + + for pattern, paths := range tests { + p, _ = newRouteRegexp(pattern, false, false, false, false) + for path, result := range paths { + matches = p.regexp.FindStringSubmatch(path) + if result == nil { + if matches != nil { + t.Errorf("%v should not match %v.", pattern, path) + } + } else { + if len(matches) != len(result)+1 { + t.Errorf("Expected %v matches, got %v.", len(result)+1, len(matches)) + } else { + for k, v := range result { + if matches[k+1] != v { + t.Errorf("Expected %v, got %v.", v, matches[k+1]) + } + } + } + } + } + } +} diff --git a/Godeps/_workspace/src/github.com/gorilla/mux/regexp.go b/Godeps/_workspace/src/github.com/gorilla/mux/regexp.go new file mode 100644 index 00000000000..aa3067986c5 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gorilla/mux/regexp.go @@ -0,0 +1,272 @@ +// Copyright 2012 The Gorilla Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package mux + +import ( + "bytes" + "fmt" + "net/http" + "net/url" + "regexp" + "strings" +) + +// newRouteRegexp parses a route template and returns a routeRegexp, +// used to match a host, a path or a query string. +// +// It will extract named variables, assemble a regexp to be matched, create +// a "reverse" template to build URLs and compile regexps to validate variable +// values used in URL building. +// +// Previously we accepted only Python-like identifiers for variable +// names ([a-zA-Z_][a-zA-Z0-9_]*), but currently the only restriction is that +// name and pattern can't be empty, and names can't contain a colon. +func newRouteRegexp(tpl string, matchHost, matchPrefix, matchQuery, strictSlash bool) (*routeRegexp, error) { + // Check if it is well-formed. + idxs, errBraces := braceIndices(tpl) + if errBraces != nil { + return nil, errBraces + } + // Backup the original. + template := tpl + // Now let's parse it. + defaultPattern := "[^/]+" + if matchQuery { + defaultPattern = "[^?&]+" + matchPrefix = true + } else if matchHost { + defaultPattern = "[^.]+" + matchPrefix = false + } + // Only match strict slash if not matching + if matchPrefix || matchHost || matchQuery { + strictSlash = false + } + // Set a flag for strictSlash. + endSlash := false + if strictSlash && strings.HasSuffix(tpl, "/") { + tpl = tpl[:len(tpl)-1] + endSlash = true + } + varsN := make([]string, len(idxs)/2) + varsR := make([]*regexp.Regexp, len(idxs)/2) + pattern := bytes.NewBufferString("") + if !matchQuery { + pattern.WriteByte('^') + } + reverse := bytes.NewBufferString("") + var end int + var err error + for i := 0; i < len(idxs); i += 2 { + // Set all values we are interested in. + raw := tpl[end:idxs[i]] + end = idxs[i+1] + parts := strings.SplitN(tpl[idxs[i]+1:end-1], ":", 2) + name := parts[0] + patt := defaultPattern + if len(parts) == 2 { + patt = parts[1] + } + // Name or pattern can't be empty. + if name == "" || patt == "" { + return nil, fmt.Errorf("mux: missing name or pattern in %q", + tpl[idxs[i]:end]) + } + // Build the regexp pattern. + fmt.Fprintf(pattern, "%s(%s)", regexp.QuoteMeta(raw), patt) + // Build the reverse template. + fmt.Fprintf(reverse, "%s%%s", raw) + // Append variable name and compiled pattern. + varsN[i/2] = name + varsR[i/2], err = regexp.Compile(fmt.Sprintf("^%s$", patt)) + if err != nil { + return nil, err + } + } + // Add the remaining. + raw := tpl[end:] + pattern.WriteString(regexp.QuoteMeta(raw)) + if strictSlash { + pattern.WriteString("[/]?") + } + if !matchPrefix { + pattern.WriteByte('$') + } + reverse.WriteString(raw) + if endSlash { + reverse.WriteByte('/') + } + // Compile full regexp. + reg, errCompile := regexp.Compile(pattern.String()) + if errCompile != nil { + return nil, errCompile + } + // Done! + return &routeRegexp{ + template: template, + matchHost: matchHost, + matchQuery: matchQuery, + strictSlash: strictSlash, + regexp: reg, + reverse: reverse.String(), + varsN: varsN, + varsR: varsR, + }, nil +} + +// routeRegexp stores a regexp to match a host or path and information to +// collect and validate route variables. +type routeRegexp struct { + // The unmodified template. + template string + // True for host match, false for path or query string match. + matchHost bool + // True for query string match, false for path and host match. + matchQuery bool + // The strictSlash value defined on the route, but disabled if PathPrefix was used. + strictSlash bool + // Expanded regexp. + regexp *regexp.Regexp + // Reverse template. + reverse string + // Variable names. + varsN []string + // Variable regexps (validators). + varsR []*regexp.Regexp +} + +// Match matches the regexp against the URL host or path. +func (r *routeRegexp) Match(req *http.Request, match *RouteMatch) bool { + if !r.matchHost { + if r.matchQuery { + return r.regexp.MatchString(req.URL.RawQuery) + } else { + return r.regexp.MatchString(req.URL.Path) + } + } + return r.regexp.MatchString(getHost(req)) +} + +// url builds a URL part using the given values. +func (r *routeRegexp) url(values map[string]string) (string, error) { + urlValues := make([]interface{}, len(r.varsN)) + for k, v := range r.varsN { + value, ok := values[v] + if !ok { + return "", fmt.Errorf("mux: missing route variable %q", v) + } + urlValues[k] = value + } + rv := fmt.Sprintf(r.reverse, urlValues...) + if !r.regexp.MatchString(rv) { + // The URL is checked against the full regexp, instead of checking + // individual variables. This is faster but to provide a good error + // message, we check individual regexps if the URL doesn't match. + for k, v := range r.varsN { + if !r.varsR[k].MatchString(values[v]) { + return "", fmt.Errorf( + "mux: variable %q doesn't match, expected %q", values[v], + r.varsR[k].String()) + } + } + } + return rv, nil +} + +// braceIndices returns the first level curly brace indices from a string. +// It returns an error in case of unbalanced braces. +func braceIndices(s string) ([]int, error) { + var level, idx int + idxs := make([]int, 0) + for i := 0; i < len(s); i++ { + switch s[i] { + case '{': + if level++; level == 1 { + idx = i + } + case '}': + if level--; level == 0 { + idxs = append(idxs, idx, i+1) + } else if level < 0 { + return nil, fmt.Errorf("mux: unbalanced braces in %q", s) + } + } + } + if level != 0 { + return nil, fmt.Errorf("mux: unbalanced braces in %q", s) + } + return idxs, nil +} + +// ---------------------------------------------------------------------------- +// routeRegexpGroup +// ---------------------------------------------------------------------------- + +// routeRegexpGroup groups the route matchers that carry variables. +type routeRegexpGroup struct { + host *routeRegexp + path *routeRegexp + queries []*routeRegexp +} + +// setMatch extracts the variables from the URL once a route matches. +func (v *routeRegexpGroup) setMatch(req *http.Request, m *RouteMatch, r *Route) { + // Store host variables. + if v.host != nil { + hostVars := v.host.regexp.FindStringSubmatch(getHost(req)) + if hostVars != nil { + for k, v := range v.host.varsN { + m.Vars[v] = hostVars[k+1] + } + } + } + // Store path variables. + if v.path != nil { + pathVars := v.path.regexp.FindStringSubmatch(req.URL.Path) + if pathVars != nil { + for k, v := range v.path.varsN { + m.Vars[v] = pathVars[k+1] + } + // Check if we should redirect. + if v.path.strictSlash { + p1 := strings.HasSuffix(req.URL.Path, "/") + p2 := strings.HasSuffix(v.path.template, "/") + if p1 != p2 { + u, _ := url.Parse(req.URL.String()) + if p1 { + u.Path = u.Path[:len(u.Path)-1] + } else { + u.Path += "/" + } + m.Handler = http.RedirectHandler(u.String(), 301) + } + } + } + } + // Store query string variables. + rawQuery := req.URL.RawQuery + for _, q := range v.queries { + queryVars := q.regexp.FindStringSubmatch(rawQuery) + if queryVars != nil { + for k, v := range q.varsN { + m.Vars[v] = queryVars[k+1] + } + } + } +} + +// getHost tries its best to return the request host. +func getHost(r *http.Request) string { + if r.URL.IsAbs() { + return r.URL.Host + } + host := r.Host + // Slice off any port information. + if i := strings.Index(host, ":"); i != -1 { + host = host[:i] + } + return host + +} diff --git a/Godeps/_workspace/src/github.com/gorilla/mux/route.go b/Godeps/_workspace/src/github.com/gorilla/mux/route.go new file mode 100644 index 00000000000..d4f01468852 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gorilla/mux/route.go @@ -0,0 +1,571 @@ +// Copyright 2012 The Gorilla Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package mux + +import ( + "errors" + "fmt" + "net/http" + "net/url" + "strings" +) + +// Route stores information to match a request and build URLs. +type Route struct { + // Parent where the route was registered (a Router). + parent parentRoute + // Request handler for the route. + handler http.Handler + // List of matchers. + matchers []matcher + // Manager for the variables from host and path. + regexp *routeRegexpGroup + // If true, when the path pattern is "/path/", accessing "/path" will + // redirect to the former and vice versa. + strictSlash bool + // If true, this route never matches: it is only used to build URLs. + buildOnly bool + // The name used to build URLs. + name string + // Error resulted from building a route. + err error + + buildVarsFunc BuildVarsFunc +} + +// Match matches the route against the request. +func (r *Route) Match(req *http.Request, match *RouteMatch) bool { + if r.buildOnly || r.err != nil { + return false + } + // Match everything. + for _, m := range r.matchers { + if matched := m.Match(req, match); !matched { + return false + } + } + // Yay, we have a match. Let's collect some info about it. + if match.Route == nil { + match.Route = r + } + if match.Handler == nil { + match.Handler = r.handler + } + if match.Vars == nil { + match.Vars = make(map[string]string) + } + // Set variables. + if r.regexp != nil { + r.regexp.setMatch(req, match, r) + } + return true +} + +// ---------------------------------------------------------------------------- +// Route attributes +// ---------------------------------------------------------------------------- + +// GetError returns an error resulted from building the route, if any. +func (r *Route) GetError() error { + return r.err +} + +// BuildOnly sets the route to never match: it is only used to build URLs. +func (r *Route) BuildOnly() *Route { + r.buildOnly = true + return r +} + +// Handler -------------------------------------------------------------------- + +// Handler sets a handler for the route. +func (r *Route) Handler(handler http.Handler) *Route { + if r.err == nil { + r.handler = handler + } + return r +} + +// HandlerFunc sets a handler function for the route. +func (r *Route) HandlerFunc(f func(http.ResponseWriter, *http.Request)) *Route { + return r.Handler(http.HandlerFunc(f)) +} + +// GetHandler returns the handler for the route, if any. +func (r *Route) GetHandler() http.Handler { + return r.handler +} + +// Name ----------------------------------------------------------------------- + +// Name sets the name for the route, used to build URLs. +// If the name was registered already it will be overwritten. +func (r *Route) Name(name string) *Route { + if r.name != "" { + r.err = fmt.Errorf("mux: route already has name %q, can't set %q", + r.name, name) + } + if r.err == nil { + r.name = name + r.getNamedRoutes()[name] = r + } + return r +} + +// GetName returns the name for the route, if any. +func (r *Route) GetName() string { + return r.name +} + +// ---------------------------------------------------------------------------- +// Matchers +// ---------------------------------------------------------------------------- + +// matcher types try to match a request. +type matcher interface { + Match(*http.Request, *RouteMatch) bool +} + +// addMatcher adds a matcher to the route. +func (r *Route) addMatcher(m matcher) *Route { + if r.err == nil { + r.matchers = append(r.matchers, m) + } + return r +} + +// addRegexpMatcher adds a host or path matcher and builder to a route. +func (r *Route) addRegexpMatcher(tpl string, matchHost, matchPrefix, matchQuery bool) error { + if r.err != nil { + return r.err + } + r.regexp = r.getRegexpGroup() + if !matchHost && !matchQuery { + if len(tpl) == 0 || tpl[0] != '/' { + return fmt.Errorf("mux: path must start with a slash, got %q", tpl) + } + if r.regexp.path != nil { + tpl = strings.TrimRight(r.regexp.path.template, "/") + tpl + } + } + rr, err := newRouteRegexp(tpl, matchHost, matchPrefix, matchQuery, r.strictSlash) + if err != nil { + return err + } + for _, q := range r.regexp.queries { + if err = uniqueVars(rr.varsN, q.varsN); err != nil { + return err + } + } + if matchHost { + if r.regexp.path != nil { + if err = uniqueVars(rr.varsN, r.regexp.path.varsN); err != nil { + return err + } + } + r.regexp.host = rr + } else { + if r.regexp.host != nil { + if err = uniqueVars(rr.varsN, r.regexp.host.varsN); err != nil { + return err + } + } + if matchQuery { + r.regexp.queries = append(r.regexp.queries, rr) + } else { + r.regexp.path = rr + } + } + r.addMatcher(rr) + return nil +} + +// Headers -------------------------------------------------------------------- + +// headerMatcher matches the request against header values. +type headerMatcher map[string]string + +func (m headerMatcher) Match(r *http.Request, match *RouteMatch) bool { + return matchMap(m, r.Header, true) +} + +// Headers adds a matcher for request header values. +// It accepts a sequence of key/value pairs to be matched. For example: +// +// r := mux.NewRouter() +// r.Headers("Content-Type", "application/json", +// "X-Requested-With", "XMLHttpRequest") +// +// The above route will only match if both request header values match. +// +// It the value is an empty string, it will match any value if the key is set. +func (r *Route) Headers(pairs ...string) *Route { + if r.err == nil { + var headers map[string]string + headers, r.err = mapFromPairs(pairs...) + return r.addMatcher(headerMatcher(headers)) + } + return r +} + +// Host ----------------------------------------------------------------------- + +// Host adds a matcher for the URL host. +// It accepts a template with zero or more URL variables enclosed by {}. +// Variables can define an optional regexp pattern to me matched: +// +// - {name} matches anything until the next dot. +// +// - {name:pattern} matches the given regexp pattern. +// +// For example: +// +// r := mux.NewRouter() +// r.Host("www.domain.com") +// r.Host("{subdomain}.domain.com") +// r.Host("{subdomain:[a-z]+}.domain.com") +// +// Variable names must be unique in a given route. They can be retrieved +// calling mux.Vars(request). +func (r *Route) Host(tpl string) *Route { + r.err = r.addRegexpMatcher(tpl, true, false, false) + return r +} + +// MatcherFunc ---------------------------------------------------------------- + +// MatcherFunc is the function signature used by custom matchers. +type MatcherFunc func(*http.Request, *RouteMatch) bool + +func (m MatcherFunc) Match(r *http.Request, match *RouteMatch) bool { + return m(r, match) +} + +// MatcherFunc adds a custom function to be used as request matcher. +func (r *Route) MatcherFunc(f MatcherFunc) *Route { + return r.addMatcher(f) +} + +// Methods -------------------------------------------------------------------- + +// methodMatcher matches the request against HTTP methods. +type methodMatcher []string + +func (m methodMatcher) Match(r *http.Request, match *RouteMatch) bool { + return matchInArray(m, r.Method) +} + +// Methods adds a matcher for HTTP methods. +// It accepts a sequence of one or more methods to be matched, e.g.: +// "GET", "POST", "PUT". +func (r *Route) Methods(methods ...string) *Route { + for k, v := range methods { + methods[k] = strings.ToUpper(v) + } + return r.addMatcher(methodMatcher(methods)) +} + +// Path ----------------------------------------------------------------------- + +// Path adds a matcher for the URL path. +// It accepts a template with zero or more URL variables enclosed by {}. The +// template must start with a "/". +// Variables can define an optional regexp pattern to me matched: +// +// - {name} matches anything until the next slash. +// +// - {name:pattern} matches the given regexp pattern. +// +// For example: +// +// r := mux.NewRouter() +// r.Path("/products/").Handler(ProductsHandler) +// r.Path("/products/{key}").Handler(ProductsHandler) +// r.Path("/articles/{category}/{id:[0-9]+}"). +// Handler(ArticleHandler) +// +// Variable names must be unique in a given route. They can be retrieved +// calling mux.Vars(request). +func (r *Route) Path(tpl string) *Route { + r.err = r.addRegexpMatcher(tpl, false, false, false) + return r +} + +// PathPrefix ----------------------------------------------------------------- + +// PathPrefix adds a matcher for the URL path prefix. This matches if the given +// template is a prefix of the full URL path. See Route.Path() for details on +// the tpl argument. +// +// Note that it does not treat slashes specially ("/foobar/" will be matched by +// the prefix "/foo") so you may want to use a trailing slash here. +// +// Also note that the setting of Router.StrictSlash() has no effect on routes +// with a PathPrefix matcher. +func (r *Route) PathPrefix(tpl string) *Route { + r.err = r.addRegexpMatcher(tpl, false, true, false) + return r +} + +// Query ---------------------------------------------------------------------- + +// Queries adds a matcher for URL query values. +// It accepts a sequence of key/value pairs. Values may define variables. +// For example: +// +// r := mux.NewRouter() +// r.Queries("foo", "bar", "id", "{id:[0-9]+}") +// +// The above route will only match if the URL contains the defined queries +// values, e.g.: ?foo=bar&id=42. +// +// It the value is an empty string, it will match any value if the key is set. +// +// Variables can define an optional regexp pattern to me matched: +// +// - {name} matches anything until the next slash. +// +// - {name:pattern} matches the given regexp pattern. +func (r *Route) Queries(pairs ...string) *Route { + length := len(pairs) + if length%2 != 0 { + r.err = fmt.Errorf( + "mux: number of parameters must be multiple of 2, got %v", pairs) + return nil + } + for i := 0; i < length; i += 2 { + if r.err = r.addRegexpMatcher(pairs[i]+"="+pairs[i+1], false, true, true); r.err != nil { + return r + } + } + + return r +} + +// Schemes -------------------------------------------------------------------- + +// schemeMatcher matches the request against URL schemes. +type schemeMatcher []string + +func (m schemeMatcher) Match(r *http.Request, match *RouteMatch) bool { + return matchInArray(m, r.URL.Scheme) +} + +// Schemes adds a matcher for URL schemes. +// It accepts a sequence of schemes to be matched, e.g.: "http", "https". +func (r *Route) Schemes(schemes ...string) *Route { + for k, v := range schemes { + schemes[k] = strings.ToLower(v) + } + return r.addMatcher(schemeMatcher(schemes)) +} + +// BuildVarsFunc -------------------------------------------------------------- + +// BuildVarsFunc is the function signature used by custom build variable +// functions (which can modify route variables before a route's URL is built). +type BuildVarsFunc func(map[string]string) map[string]string + +// BuildVarsFunc adds a custom function to be used to modify build variables +// before a route's URL is built. +func (r *Route) BuildVarsFunc(f BuildVarsFunc) *Route { + r.buildVarsFunc = f + return r +} + +// Subrouter ------------------------------------------------------------------ + +// Subrouter creates a subrouter for the route. +// +// It will test the inner routes only if the parent route matched. For example: +// +// r := mux.NewRouter() +// s := r.Host("www.domain.com").Subrouter() +// s.HandleFunc("/products/", ProductsHandler) +// s.HandleFunc("/products/{key}", ProductHandler) +// s.HandleFunc("/articles/{category}/{id:[0-9]+}"), ArticleHandler) +// +// Here, the routes registered in the subrouter won't be tested if the host +// doesn't match. +func (r *Route) Subrouter() *Router { + router := &Router{parent: r, strictSlash: r.strictSlash} + r.addMatcher(router) + return router +} + +// ---------------------------------------------------------------------------- +// URL building +// ---------------------------------------------------------------------------- + +// URL builds a URL for the route. +// +// It accepts a sequence of key/value pairs for the route variables. For +// example, given this route: +// +// r := mux.NewRouter() +// r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler). +// Name("article") +// +// ...a URL for it can be built using: +// +// url, err := r.Get("article").URL("category", "technology", "id", "42") +// +// ...which will return an url.URL with the following path: +// +// "/articles/technology/42" +// +// This also works for host variables: +// +// r := mux.NewRouter() +// r.Host("{subdomain}.domain.com"). +// HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler). +// Name("article") +// +// // url.String() will be "http://news.domain.com/articles/technology/42" +// url, err := r.Get("article").URL("subdomain", "news", +// "category", "technology", +// "id", "42") +// +// All variables defined in the route are required, and their values must +// conform to the corresponding patterns. +func (r *Route) URL(pairs ...string) (*url.URL, error) { + if r.err != nil { + return nil, r.err + } + if r.regexp == nil { + return nil, errors.New("mux: route doesn't have a host or path") + } + values, err := r.prepareVars(pairs...) + if err != nil { + return nil, err + } + var scheme, host, path string + if r.regexp.host != nil { + // Set a default scheme. + scheme = "http" + if host, err = r.regexp.host.url(values); err != nil { + return nil, err + } + } + if r.regexp.path != nil { + if path, err = r.regexp.path.url(values); err != nil { + return nil, err + } + } + return &url.URL{ + Scheme: scheme, + Host: host, + Path: path, + }, nil +} + +// URLHost builds the host part of the URL for a route. See Route.URL(). +// +// The route must have a host defined. +func (r *Route) URLHost(pairs ...string) (*url.URL, error) { + if r.err != nil { + return nil, r.err + } + if r.regexp == nil || r.regexp.host == nil { + return nil, errors.New("mux: route doesn't have a host") + } + values, err := r.prepareVars(pairs...) + if err != nil { + return nil, err + } + host, err := r.regexp.host.url(values) + if err != nil { + return nil, err + } + return &url.URL{ + Scheme: "http", + Host: host, + }, nil +} + +// URLPath builds the path part of the URL for a route. See Route.URL(). +// +// The route must have a path defined. +func (r *Route) URLPath(pairs ...string) (*url.URL, error) { + if r.err != nil { + return nil, r.err + } + if r.regexp == nil || r.regexp.path == nil { + return nil, errors.New("mux: route doesn't have a path") + } + values, err := r.prepareVars(pairs...) + if err != nil { + return nil, err + } + path, err := r.regexp.path.url(values) + if err != nil { + return nil, err + } + return &url.URL{ + Path: path, + }, nil +} + +// prepareVars converts the route variable pairs into a map. If the route has a +// BuildVarsFunc, it is invoked. +func (r *Route) prepareVars(pairs ...string) (map[string]string, error) { + m, err := mapFromPairs(pairs...) + if err != nil { + return nil, err + } + return r.buildVars(m), nil +} + +func (r *Route) buildVars(m map[string]string) map[string]string { + if r.parent != nil { + m = r.parent.buildVars(m) + } + if r.buildVarsFunc != nil { + m = r.buildVarsFunc(m) + } + return m +} + +// ---------------------------------------------------------------------------- +// parentRoute +// ---------------------------------------------------------------------------- + +// parentRoute allows routes to know about parent host and path definitions. +type parentRoute interface { + getNamedRoutes() map[string]*Route + getRegexpGroup() *routeRegexpGroup + buildVars(map[string]string) map[string]string +} + +// getNamedRoutes returns the map where named routes are registered. +func (r *Route) getNamedRoutes() map[string]*Route { + if r.parent == nil { + // During tests router is not always set. + r.parent = NewRouter() + } + return r.parent.getNamedRoutes() +} + +// getRegexpGroup returns regexp definitions from this route. +func (r *Route) getRegexpGroup() *routeRegexpGroup { + if r.regexp == nil { + if r.parent == nil { + // During tests router is not always set. + r.parent = NewRouter() + } + regexp := r.parent.getRegexpGroup() + if regexp == nil { + r.regexp = new(routeRegexpGroup) + } else { + // Copy. + r.regexp = &routeRegexpGroup{ + host: regexp.host, + path: regexp.path, + queries: regexp.queries, + } + } + } + return r.regexp +} diff --git a/Godeps/_workspace/src/github.com/xyproto/simpleredis/.travis.yml b/Godeps/_workspace/src/github.com/xyproto/simpleredis/.travis.yml new file mode 100644 index 00000000000..77b8f1afa8b --- /dev/null +++ b/Godeps/_workspace/src/github.com/xyproto/simpleredis/.travis.yml @@ -0,0 +1,7 @@ +language: go + +services: + - redis-server + +go: + - 1.4 diff --git a/Godeps/_workspace/src/github.com/xyproto/simpleredis/LICENSE b/Godeps/_workspace/src/github.com/xyproto/simpleredis/LICENSE new file mode 100644 index 00000000000..145d387b2d4 --- /dev/null +++ b/Godeps/_workspace/src/github.com/xyproto/simpleredis/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2015 Alexander F Rødseth + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/Godeps/_workspace/src/github.com/xyproto/simpleredis/README.md b/Godeps/_workspace/src/github.com/xyproto/simpleredis/README.md new file mode 100644 index 00000000000..1bf68c62af1 --- /dev/null +++ b/Godeps/_workspace/src/github.com/xyproto/simpleredis/README.md @@ -0,0 +1,92 @@ +Simple Redis +============ + +[![Build Status](https://travis-ci.org/xyproto/simpleredis.svg?branch=master)](https://travis-ci.org/xyproto/simpleredis) +[![GoDoc](https://godoc.org/github.com/xyproto/simpleredis?status.svg)](http://godoc.org/github.com/xyproto/simpleredis) + + +Easy way to use Redis from Go. + + +Online API Documentation +------------------------ + +[godoc.org](http://godoc.org/github.com/xyproto/simpleredis) + + +Features and limitations +------------------------ + +* Supports simple use of lists, hashmaps, sets and key/values +* Deals mainly with strings +* Uses the [redigo](https://github.com/garyburd/redigo) package + + +Example usage +------------- + +~~~go +package main + +import ( + "log" + + "github.com/xyproto/simpleredis" +) + +func main() { + // Check if the redis service is up + if err := simpleredis.TestConnection(); err != nil { + log.Fatalln("Could not connect to Redis. Is the service up and running?") + } + + // Use instead for testing if a different host/port is up. + // simpleredis.TestConnectionHost("localhost:6379") + + // Create a connection pool, connect to the given redis server + pool := simpleredis.NewConnectionPool() + + // Use this for connecting to a different redis host/port + // pool := simpleredis.NewConnectionPoolHost("localhost:6379") + + // For connecting to a different redis host/port, with a password + // pool := simpleredis.NewConnectionPoolHost("password@redishost:6379") + + // Close the connection pool right after this function returns + defer pool.Close() + + // Create a list named "greetings" + list := simpleredis.NewList(pool, "greetings") + + // Add "hello" to the list, check if there are errors + if list.Add("hello") != nil { + log.Fatalln("Could not add an item to list!") + } + + // Get the last item of the list + if item, err := list.GetLast(); err != nil { + log.Fatalln("Could not fetch the last item from the list!") + } else { + log.Println("The value of the stored item is:", item) + } + + // Remove the list + if list.Remove() != nil { + log.Fatalln("Could not remove the list!") + } +} +~~~ + +Testing +------- + +Redis must be up and running locally for the `go test` tests to work. + + +Version, license and author +--------------------------- + +* Version: 1.0 +* License: MIT +* Author: Alexander F Rødseth + diff --git a/Godeps/_workspace/src/github.com/xyproto/simpleredis/TODO.md b/Godeps/_workspace/src/github.com/xyproto/simpleredis/TODO.md new file mode 100644 index 00000000000..2bef7d21088 --- /dev/null +++ b/Godeps/_workspace/src/github.com/xyproto/simpleredis/TODO.md @@ -0,0 +1,2 @@ +* Add all the tests from xyproto/db/db_test.go +* Conform to the IHost interface in xyproto/db/interface.go diff --git a/Godeps/_workspace/src/github.com/xyproto/simpleredis/example/main.go b/Godeps/_workspace/src/github.com/xyproto/simpleredis/example/main.go new file mode 100644 index 00000000000..95626326dce --- /dev/null +++ b/Godeps/_workspace/src/github.com/xyproto/simpleredis/example/main.go @@ -0,0 +1,49 @@ +package main + +import ( + "log" + + "github.com/xyproto/simpleredis" +) + +func main() { + // Check if the redis service is up + if err := simpleredis.TestConnection(); err != nil { + log.Fatalln("Could not connect to Redis. Is the service up and running?") + } + + // Use instead for testing if a different host/port is up. + // simpleredis.TestConnectionHost("localhost:6379") + + // Create a connection pool, connect to the given redis server + pool := simpleredis.NewConnectionPool() + + // Use this for connecting to a different redis host/port + // pool := simpleredis.NewConnectionPoolHost("localhost:6379") + + // For connecting to a different redis host/port, with a password + // pool := simpleredis.NewConnectionPoolHost("password@redishost:6379") + + // Close the connection pool right after this function returns + defer pool.Close() + + // Create a list named "greetings" + list := simpleredis.NewList(pool, "greetings") + + // Add "hello" to the list, check if there are errors + if list.Add("hello") != nil { + log.Fatalln("Could not add an item to list!") + } + + // Get the last item of the list + if item, err := list.GetLast(); err != nil { + log.Fatalln("Could not fetch the last item from the list!") + } else { + log.Println("The value of the stored item is:", item) + } + + // Remove the list + if list.Remove() != nil { + log.Fatalln("Could not remove the list!") + } +} diff --git a/Godeps/_workspace/src/github.com/xyproto/simpleredis/simpleredis.go b/Godeps/_workspace/src/github.com/xyproto/simpleredis/simpleredis.go new file mode 100644 index 00000000000..8888fa1e4cf --- /dev/null +++ b/Godeps/_workspace/src/github.com/xyproto/simpleredis/simpleredis.go @@ -0,0 +1,411 @@ +// Easy way to use Redis from Go. +package simpleredis + +import ( + "errors" + "strconv" + "strings" + + "github.com/garyburd/redigo/redis" +) + +// Common for each of the redis datastructures used here +type redisDatastructure struct { + pool *ConnectionPool + id string + dbindex int +} + +type ( + // A pool of readily available Redis connections + ConnectionPool redis.Pool + + List redisDatastructure + Set redisDatastructure + HashMap redisDatastructure + KeyValue redisDatastructure +) + +const ( + // Version number. Stable API within major version numbers. + Version = 1.0 + // The default [url]:port that Redis is running at + defaultRedisServer = ":6379" +) + +var ( + // How many connections should stay ready for requests, at a maximum? + // When an idle connection is used, new idle connections are created. + maxIdleConnections = 3 +) + +/* --- Helper functions --- */ + +// Connect to the local instance of Redis at port 6379 +func newRedisConnection() (redis.Conn, error) { + return newRedisConnectionTo(defaultRedisServer) +} + +// Connect to host:port, host may be omitted, so ":6379" is valid. +// Will not try to AUTH with any given password (password@host:port). +func newRedisConnectionTo(hostColonPort string) (redis.Conn, error) { + // Discard the password, if provided + if _, theRest, ok := twoFields(hostColonPort, "@"); ok { + hostColonPort = theRest + } + hostColonPort = strings.TrimSpace(hostColonPort) + return redis.Dial("tcp", hostColonPort) +} + +// Get a string from a list of results at a given position +func getString(bi []interface{}, i int) string { + return string(bi[i].([]uint8)) +} + +// Test if the local Redis server is up and running +func TestConnection() (err error) { + return TestConnectionHost(defaultRedisServer) +} + +// Test if a given Redis server at host:port is up and running. +// Does not try to PING or AUTH. +func TestConnectionHost(hostColonPort string) (err error) { + // Connect to the given host:port + conn, err := newRedisConnectionTo(hostColonPort) + if conn != nil { + conn.Close() + } + defer func() { + if r := recover(); r != nil { + err = errors.New("Could not connect to redis server: " + hostColonPort) + } + }() + return err +} + +/* --- ConnectionPool functions --- */ + +// Create a new connection pool +func NewConnectionPool() *ConnectionPool { + // The second argument is the maximum number of idle connections + redisPool := redis.NewPool(newRedisConnection, maxIdleConnections) + pool := ConnectionPool(*redisPool) + return &pool +} + +// Split a string into two parts, given a delimiter. +// Returns the two parts and true if it works out. +func twoFields(s, delim string) (string, string, bool) { + if strings.Count(s, delim) != 1 { + return s, "", false + } + fields := strings.Split(s, delim) + return fields[0], fields[1], true +} + +// Create a new connection pool given a host:port string. +// A password may be supplied as well, on the form "password@host:port". +func NewConnectionPoolHost(hostColonPort string) *ConnectionPool { + // Create a redis Pool + redisPool := redis.NewPool( + // Anonymous function for calling new RedisConnectionTo with the host:port + func() (redis.Conn, error) { + conn, err := newRedisConnectionTo(hostColonPort) + if err != nil { + return nil, err + } + // If a password is given, use it to authenticate + if password, _, ok := twoFields(hostColonPort, "@"); ok { + if password != "" { + if _, err := conn.Do("AUTH", password); err != nil { + conn.Close() + return nil, err + } + } + } + return conn, err + }, + // Maximum number of idle connections to the redis database + maxIdleConnections) + pool := ConnectionPool(*redisPool) + return &pool +} + +// Set the number of maximum *idle* connections standing ready when +// creating new connection pools. When an idle connection is used, +// a new idle connection is created. The default is 3 and should be fine +// for most cases. +func SetMaxIdleConnections(maximum int) { + maxIdleConnections = maximum +} + +// Get one of the available connections from the connection pool, given a database index +func (pool *ConnectionPool) Get(dbindex int) redis.Conn { + redisPool := redis.Pool(*pool) + conn := redisPool.Get() + // The default database index is 0 + if dbindex != 0 { + // SELECT is not critical, ignore the return values + conn.Do("SELECT", strconv.Itoa(dbindex)) + } + return conn +} + +// Ping the server by sending a PING command +func (pool *ConnectionPool) Ping() (pong bool) { + redisPool := redis.Pool(*pool) + conn := redisPool.Get() + _, err := conn.Do("PING") + return err == nil +} + +// Close down the connection pool +func (pool *ConnectionPool) Close() { + redisPool := redis.Pool(*pool) + redisPool.Close() +} + +/* --- List functions --- */ + +// Create a new list +func NewList(pool *ConnectionPool, id string) *List { + return &List{pool, id, 0} +} + +// Select a different database +func (rl *List) SelectDatabase(dbindex int) { + rl.dbindex = dbindex +} + +// Add an element to the list +func (rl *List) Add(value string) error { + conn := rl.pool.Get(rl.dbindex) + _, err := conn.Do("RPUSH", rl.id, value) + return err +} + +// Get all elements of a list +func (rl *List) GetAll() ([]string, error) { + conn := rl.pool.Get(rl.dbindex) + result, err := redis.Values(conn.Do("LRANGE", rl.id, "0", "-1")) + strs := make([]string, len(result)) + for i := 0; i < len(result); i++ { + strs[i] = getString(result, i) + } + return strs, err +} + +// Get the last element of a list +func (rl *List) GetLast() (string, error) { + conn := rl.pool.Get(rl.dbindex) + result, err := redis.Values(conn.Do("LRANGE", rl.id, "-1", "-1")) + if len(result) == 1 { + return getString(result, 0), err + } + return "", err +} + +// Get the last N elements of a list +func (rl *List) GetLastN(n int) ([]string, error) { + conn := rl.pool.Get(rl.dbindex) + result, err := redis.Values(conn.Do("LRANGE", rl.id, "-"+strconv.Itoa(n), "-1")) + strs := make([]string, len(result)) + for i := 0; i < len(result); i++ { + strs[i] = getString(result, i) + } + return strs, err +} + +// Remove this list +func (rl *List) Remove() error { + conn := rl.pool.Get(rl.dbindex) + _, err := conn.Do("DEL", rl.id) + return err +} + +/* --- Set functions --- */ + +// Create a new set +func NewSet(pool *ConnectionPool, id string) *Set { + return &Set{pool, id, 0} +} + +// Select a different database +func (rs *Set) SelectDatabase(dbindex int) { + rs.dbindex = dbindex +} + +// Add an element to the set +func (rs *Set) Add(value string) error { + conn := rs.pool.Get(rs.dbindex) + _, err := conn.Do("SADD", rs.id, value) + return err +} + +// Check if a given value is in the set +func (rs *Set) Has(value string) (bool, error) { + conn := rs.pool.Get(rs.dbindex) + retval, err := conn.Do("SISMEMBER", rs.id, value) + if err != nil { + panic(err) + } + return redis.Bool(retval, err) +} + +// Get all elements of the set +func (rs *Set) GetAll() ([]string, error) { + conn := rs.pool.Get(rs.dbindex) + result, err := redis.Values(conn.Do("SMEMBERS", rs.id)) + strs := make([]string, len(result)) + for i := 0; i < len(result); i++ { + strs[i] = getString(result, i) + } + return strs, err +} + +// Remove an element from the set +func (rs *Set) Del(value string) error { + conn := rs.pool.Get(rs.dbindex) + _, err := conn.Do("SREM", rs.id, value) + return err +} + +// Remove this set +func (rs *Set) Remove() error { + conn := rs.pool.Get(rs.dbindex) + _, err := conn.Do("DEL", rs.id) + return err +} + +/* --- HashMap functions --- */ + +// Create a new hashmap +func NewHashMap(pool *ConnectionPool, id string) *HashMap { + return &HashMap{pool, id, 0} +} + +// Select a different database +func (rh *HashMap) SelectDatabase(dbindex int) { + rh.dbindex = dbindex +} + +// Set a value in a hashmap given the element id (for instance a user id) and the key (for instance "password") +func (rh *HashMap) Set(elementid, key, value string) error { + conn := rh.pool.Get(rh.dbindex) + _, err := conn.Do("HSET", rh.id+":"+elementid, key, value) + return err +} + +// Get a value from a hashmap given the element id (for instance a user id) and the key (for instance "password") +func (rh *HashMap) Get(elementid, key string) (string, error) { + conn := rh.pool.Get(rh.dbindex) + result, err := redis.String(conn.Do("HGET", rh.id+":"+elementid, key)) + if err != nil { + return "", err + } + return result, nil +} + +// Check if a given elementid + key is in the hash map +func (rh *HashMap) Has(elementid, key string) (bool, error) { + conn := rh.pool.Get(rh.dbindex) + retval, err := conn.Do("HEXISTS", rh.id+":"+elementid, key) + if err != nil { + panic(err) + } + return redis.Bool(retval, err) +} + +// Check if a given elementid exists as a hash map at all +func (rh *HashMap) Exists(elementid string) (bool, error) { + // TODO: key is not meant to be a wildcard, check for "*" + return hasKey(rh.pool, rh.id+":"+elementid, rh.dbindex) +} + +// Get all elementid's for all hash elements +func (rh *HashMap) GetAll() ([]string, error) { + conn := rh.pool.Get(rh.dbindex) + result, err := redis.Values(conn.Do("KEYS", rh.id+":*")) + strs := make([]string, len(result)) + idlen := len(rh.id) + for i := 0; i < len(result); i++ { + strs[i] = getString(result, i)[idlen+1:] + } + return strs, err +} + +// Remove a key for an entry in a hashmap (for instance the email field for a user) +func (rh *HashMap) DelKey(elementid, key string) error { + conn := rh.pool.Get(rh.dbindex) + _, err := conn.Do("HDEL", rh.id+":"+elementid, key) + return err +} + +// Remove an element (for instance a user) +func (rh *HashMap) Del(elementid string) error { + conn := rh.pool.Get(rh.dbindex) + _, err := conn.Do("DEL", rh.id+":"+elementid) + return err +} + +// Remove this hashmap +func (rh *HashMap) Remove() error { + conn := rh.pool.Get(rh.dbindex) + _, err := conn.Do("DEL", rh.id) + return err +} + +/* --- KeyValue functions --- */ + +// Create a new key/value +func NewKeyValue(pool *ConnectionPool, id string) *KeyValue { + return &KeyValue{pool, id, 0} +} + +// Select a different database +func (rkv *KeyValue) SelectDatabase(dbindex int) { + rkv.dbindex = dbindex +} + +// Set a key and value +func (rkv *KeyValue) Set(key, value string) error { + conn := rkv.pool.Get(rkv.dbindex) + _, err := conn.Do("SET", rkv.id+":"+key, value) + return err +} + +// Get a value given a key +func (rkv *KeyValue) Get(key string) (string, error) { + conn := rkv.pool.Get(rkv.dbindex) + result, err := redis.String(conn.Do("GET", rkv.id+":"+key)) + if err != nil { + return "", err + } + return result, nil +} + +// Remove a key +func (rkv *KeyValue) Del(key string) error { + conn := rkv.pool.Get(rkv.dbindex) + _, err := conn.Do("DEL", rkv.id+":"+key) + return err +} + +// Remove this key/value +func (rkv *KeyValue) Remove() error { + conn := rkv.pool.Get(rkv.dbindex) + _, err := conn.Do("DEL", rkv.id) + return err +} + +// --- Generic redis functions --- + +// Check if a key exists. The key can be a wildcard (ie. "user*"). +func hasKey(pool *ConnectionPool, wildcard string, dbindex int) (bool, error) { + conn := pool.Get(dbindex) + result, err := redis.Values(conn.Do("KEYS", wildcard)) + if err != nil { + return false, err + } + return len(result) > 0, nil +} diff --git a/Godeps/_workspace/src/github.com/xyproto/simpleredis/simpleredis_test.go b/Godeps/_workspace/src/github.com/xyproto/simpleredis/simpleredis_test.go new file mode 100644 index 00000000000..cd9e4bf2d0e --- /dev/null +++ b/Godeps/_workspace/src/github.com/xyproto/simpleredis/simpleredis_test.go @@ -0,0 +1,66 @@ +package simpleredis + +import ( + "testing" +) + +var pool *ConnectionPool + +func TestLocalConnection(t *testing.T) { + if err := TestConnection(); err != nil { + t.Errorf(err.Error()) + } +} + +func TestRemoteConnection(t *testing.T) { + if err := TestConnectionHost("foobared@ :6379"); err != nil { + t.Errorf(err.Error()) + } +} + +func TestConnectionPool(t *testing.T) { + pool = NewConnectionPool() +} + +func TestConnectionPoolHost(t *testing.T) { + pool = NewConnectionPoolHost("localhost:6379") +} + +// Tests with password "foobared" if the previous connection test +// did not result in a connection that responds to PING. +func TestConnectionPoolHostPassword(t *testing.T) { + if !pool.Ping() { + // Try connecting with the default password + pool = NewConnectionPoolHost("foobared@localhost:6379") + } +} + +func TestList(t *testing.T) { + const ( + listname = "abc123_test_test_test_123abc" + testdata = "123abc" + ) + list := NewList(pool, listname) + list.SelectDatabase(1) + if err := list.Add(testdata); err != nil { + t.Errorf("Error, could not add item to list! %s", err.Error()) + } + items, err := list.GetAll() + if len(items) != 1 { + t.Errorf("Error, wrong list length! %v", len(items)) + } + if (len(items) > 0) && (items[0] != testdata) { + t.Errorf("Error, wrong list contents! %v", items) + } + err = list.Remove() + if err != nil { + t.Errorf("Error, could not remove list! %s", err.Error()) + } +} + +func TestTwoFields(t *testing.T) { + test, test23, ok := twoFields("test1@test2@test3", "@") + if ok && ((test != "test1") || (test23 != "test2@test3")) { + t.Error("Error in twoFields functions") + } +} diff --git a/examples/k8petstore/README.md b/examples/k8petstore/README.md index fdc65b83bcb..7d623f0cd30 100644 --- a/examples/k8petstore/README.md +++ b/examples/k8petstore/README.md @@ -109,6 +109,3 @@ Thus we plan to add another tier of queueing, which empties the REDIS transactio For questions on running this app, you can ask on the google containers group (freenode ~ google-containers@googlegroups.com or #google-containers on IRC) For questions about bigpetstore, and how the data is generated, ask on the apache bigtop mailing list. - - - diff --git a/examples/k8petstore/web-server/src/main/PetStoreBook.go b/examples/k8petstore/web-server/PetStoreBook.go similarity index 99% rename from examples/k8petstore/web-server/src/main/PetStoreBook.go rename to examples/k8petstore/web-server/PetStoreBook.go index 85f21c847ca..79772cfb0df 100644 --- a/examples/k8petstore/web-server/src/main/PetStoreBook.go +++ b/examples/k8petstore/web-server/PetStoreBook.go @@ -16,17 +16,16 @@ See the License for the specific language governing permissions and limitations under the License. */ -//package main - import ( "encoding/json" "fmt" - "github.com/codegangsta/negroni" - "github.com/gorilla/mux" - "github.com/xyproto/simpleredis" "net/http" "os" "strings" + + "github.com/codegangsta/negroni" + "github.com/gorilla/mux" + "github.com/xyproto/simpleredis" ) //return the path to static assets (i.e. index.html) diff --git a/examples/k8petstore/web-server/src/main/dump.rdb b/examples/k8petstore/web-server/dump.rdb similarity index 100% rename from examples/k8petstore/web-server/src/main/dump.rdb rename to examples/k8petstore/web-server/dump.rdb diff --git a/examples/k8petstore/web-server/src/github.com/codegangsta/negroni b/examples/k8petstore/web-server/src/github.com/codegangsta/negroni deleted file mode 160000 index 1dd3ab0ff59..00000000000 --- a/examples/k8petstore/web-server/src/github.com/codegangsta/negroni +++ /dev/null @@ -1 +0,0 @@ -Subproject commit 1dd3ab0ff59e13f5b73dcbf70703710aebe50d2f diff --git a/examples/k8petstore/web-server/src/github.com/garyburd/redigo b/examples/k8petstore/web-server/src/github.com/garyburd/redigo deleted file mode 160000 index 535138d7bcd..00000000000 --- a/examples/k8petstore/web-server/src/github.com/garyburd/redigo +++ /dev/null @@ -1 +0,0 @@ -Subproject commit 535138d7bcd717d6531c701ef5933d98b1866257 diff --git a/examples/k8petstore/web-server/src/github.com/gorilla/context b/examples/k8petstore/web-server/src/github.com/gorilla/context deleted file mode 160000 index 215affda49a..00000000000 --- a/examples/k8petstore/web-server/src/github.com/gorilla/context +++ /dev/null @@ -1 +0,0 @@ -Subproject commit 215affda49addc4c8ef7e2534915df2c8c35c6cd diff --git a/examples/k8petstore/web-server/src/github.com/gorilla/mux b/examples/k8petstore/web-server/src/github.com/gorilla/mux deleted file mode 160000 index 8096f475034..00000000000 --- a/examples/k8petstore/web-server/src/github.com/gorilla/mux +++ /dev/null @@ -1 +0,0 @@ -Subproject commit 8096f47503459bcc74d1f4c487b7e6e42e5746b5 diff --git a/examples/k8petstore/web-server/src/github.com/xyproto/simpleredis b/examples/k8petstore/web-server/src/github.com/xyproto/simpleredis deleted file mode 160000 index 5292687f537..00000000000 --- a/examples/k8petstore/web-server/src/github.com/xyproto/simpleredis +++ /dev/null @@ -1 +0,0 @@ -Subproject commit 5292687f5379e01054407da44d7c4590a61fd3de diff --git a/hack/lib/golang.sh b/hack/lib/golang.sh index 2d3f092f84c..37ca52380b0 100644 --- a/hack/lib/golang.sh +++ b/hack/lib/golang.sh @@ -48,6 +48,7 @@ readonly KUBE_TEST_TARGETS=( cmd/integration cmd/gendocs cmd/genman + examples/k8petstore/web-server ) readonly KUBE_TEST_BINARIES=("${KUBE_TEST_TARGETS[@]##*/}") readonly KUBE_TEST_BINARIES_WIN=("${KUBE_TEST_BINARIES[@]/%/.exe}")