Revert "Connecting Mizu to the application (#313)" (#316)

cli/auth/authProvider.go

@@ -1,123 +0,0 @@
-package auth
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"github.com/google/uuid"
-	"github.com/up9inc/mizu/cli/logger"
-	"github.com/up9inc/mizu/cli/uiUtils"
-	"golang.org/x/oauth2"
-	"net"
-	"net/http"
-	"time"
-)
-
-const loginTimeoutInMin = 2
-
-// Ports are configured in keycloak "cli" client as valid redirect URIs. A change here must be reflected there as well.
-var listenPorts = []int{3141, 4001, 5002, 6003, 7004, 8005, 9006, 10007}
-
-func LoginInteractively(envName string) (*oauth2.Token, error) {
-	tokenChannel := make(chan *oauth2.Token)
-	errorChannel := make(chan error)
-
-	server := http.Server{}
-	go startLoginServer(tokenChannel, errorChannel, envName, &server)
-
-	defer func() {
-		if err := server.Shutdown(context.Background()); err != nil {
-			logger.Log.Debugf("Error shutting down server, err: %v", err)
-		}
-	}()
-
-	select {
-	case <-time.After(loginTimeoutInMin * time.Minute):
-		return nil, errors.New("auth timed out")
-	case err := <-errorChannel:
-		return nil, err
-	case token := <-tokenChannel:
-		return token, nil
-	}
-}
-
-func startLoginServer(tokenChannel chan *oauth2.Token, errorChannel chan error, envName string, server *http.Server) {
-	for _, port := range listenPorts {
-		var config = &oauth2.Config{
-			ClientID:    "cli",
-			RedirectURL: fmt.Sprintf("http://localhost:%v/callback", port),
-			Endpoint: oauth2.Endpoint{
-				AuthURL:  fmt.Sprintf("https://auth.%s/auth/realms/testr/protocol/openid-connect/auth", envName),
-				TokenURL: fmt.Sprintf("https://auth.%s/auth/realms/testr/protocol/openid-connect/token", envName),
-			},
-		}
-
-		state := uuid.New()
-
-		mux := http.NewServeMux()
-		server.Handler = mux
-		mux.Handle("/callback", loginCallbackHandler(tokenChannel, errorChannel, config, envName, state))
-
-		listener, listenErr := net.Listen("tcp", fmt.Sprintf("%s:%d", "127.0.0.1", port))
-		if listenErr != nil {
-			logger.Log.Debugf("failed to start listening on port %v, err: %v", port, listenErr)
-			continue
-		}
-
-		authorizationUrl := config.AuthCodeURL(state.String())
-		uiUtils.OpenBrowser(authorizationUrl)
-
-		serveErr := server.Serve(listener)
-		if serveErr == http.ErrServerClosed {
-			logger.Log.Debugf("received server shutdown, server on port %v is closed", port)
-			return
-		} else if serveErr != nil {
-			logger.Log.Debugf("failed to start serving on port %v, err: %v", port, serveErr)
-			continue
-		}
-
-		logger.Log.Debugf("didn't receive server closed on port %v", port)
-		return
-	}
-
-	errorChannel <- fmt.Errorf("failed to start serving on all listen ports, ports: %v", listenPorts)
-}
-
-func loginCallbackHandler(tokenChannel chan *oauth2.Token, errorChannel chan error, config *oauth2.Config, envName string, state uuid.UUID) http.Handler {
-	return http.HandlerFunc(func(writer http.ResponseWriter, request *http.Request) {
-		if err := request.ParseForm(); err != nil {
-			errorMsg := fmt.Sprintf("failed to parse form, err: %v", err)
-			http.Error(writer, errorMsg, http.StatusBadRequest)
-			errorChannel <- fmt.Errorf(errorMsg)
-			return
-		}
-
-		requestState := request.Form.Get("state")
-		if requestState != state.String() {
-			errorMsg := fmt.Sprintf("state invalid, requestState: %v, authState:%v", requestState, state.String())
-			http.Error(writer, errorMsg, http.StatusBadRequest)
-			errorChannel <- fmt.Errorf(errorMsg)
-			return
-		}
-
-		code := request.Form.Get("code")
-		if code == "" {
-			errorMsg := "code not found"
-			http.Error(writer, errorMsg, http.StatusBadRequest)
-			errorChannel <- fmt.Errorf(errorMsg)
-			return
-		}
-
-		token, err := config.Exchange(context.Background(), code)
-		if err != nil {
-			errorMsg := fmt.Sprintf("failed to create token, err: %v", err)
-			http.Error(writer, errorMsg, http.StatusInternalServerError)
-			errorChannel <- fmt.Errorf(errorMsg)
-			return
-		}
-
-		tokenChannel <- token
-
-		http.Redirect(writer, request, fmt.Sprintf("https://%s/CliLogin", envName), http.StatusFound)
-	})
-}