mirror of
https://github.com/mudler/luet.git
synced 2025-07-16 16:31:33 +00:00
18e9ce4557
This commit removes the Domain Name, if any, from the cached image reference before computing the image fingerprint. This way the same image, if stored in some oter mirror, is still seen as the same one. Fixes #158
1628 lines
45 KiB
Go
1628 lines
45 KiB
Go
// Package govalidator is package of validators and sanitizers for strings, structs and collections.
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package govalidator
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import (
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"bytes"
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"crypto/rsa"
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"crypto/x509"
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"encoding/base64"
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"encoding/json"
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"encoding/pem"
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"fmt"
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"io/ioutil"
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"net"
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"net/url"
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"reflect"
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"regexp"
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"sort"
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"strconv"
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"strings"
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"time"
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"unicode"
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"unicode/utf8"
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)
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var (
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fieldsRequiredByDefault bool
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nilPtrAllowedByRequired = false
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notNumberRegexp = regexp.MustCompile("[^0-9]+")
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whiteSpacesAndMinus = regexp.MustCompile(`[\s-]+`)
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paramsRegexp = regexp.MustCompile(`\(.*\)$`)
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)
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const maxURLRuneCount = 2083
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const minURLRuneCount = 3
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const rfc3339WithoutZone = "2006-01-02T15:04:05"
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// SetFieldsRequiredByDefault causes validation to fail when struct fields
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// do not include validations or are not explicitly marked as exempt (using `valid:"-"` or `valid:"email,optional"`).
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// This struct definition will fail govalidator.ValidateStruct() (and the field values do not matter):
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// type exampleStruct struct {
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// Name string ``
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// Email string `valid:"email"`
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// This, however, will only fail when Email is empty or an invalid email address:
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// type exampleStruct2 struct {
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// Name string `valid:"-"`
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// Email string `valid:"email"`
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// Lastly, this will only fail when Email is an invalid email address but not when it's empty:
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// type exampleStruct2 struct {
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// Name string `valid:"-"`
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// Email string `valid:"email,optional"`
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func SetFieldsRequiredByDefault(value bool) {
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fieldsRequiredByDefault = value
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}
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// SetNilPtrAllowedByRequired causes validation to pass for nil ptrs when a field is set to required.
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// The validation will still reject ptr fields in their zero value state. Example with this enabled:
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// type exampleStruct struct {
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// Name *string `valid:"required"`
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// With `Name` set to "", this will be considered invalid input and will cause a validation error.
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// With `Name` set to nil, this will be considered valid by validation.
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// By default this is disabled.
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func SetNilPtrAllowedByRequired(value bool) {
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nilPtrAllowedByRequired = value
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}
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// IsEmail checks if the string is an email.
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func IsEmail(str string) bool {
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// TODO uppercase letters are not supported
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return rxEmail.MatchString(str)
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}
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// IsExistingEmail checks if the string is an email of existing domain
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func IsExistingEmail(email string) bool {
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if len(email) < 6 || len(email) > 254 {
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return false
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}
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at := strings.LastIndex(email, "@")
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if at <= 0 || at > len(email)-3 {
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return false
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}
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user := email[:at]
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host := email[at+1:]
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if len(user) > 64 {
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return false
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}
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switch host {
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case "localhost", "example.com":
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return true
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}
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if userDotRegexp.MatchString(user) || !userRegexp.MatchString(user) || !hostRegexp.MatchString(host) {
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return false
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}
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if _, err := net.LookupMX(host); err != nil {
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if _, err := net.LookupIP(host); err != nil {
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return false
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}
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}
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return true
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}
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// IsURL checks if the string is an URL.
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func IsURL(str string) bool {
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if str == "" || utf8.RuneCountInString(str) >= maxURLRuneCount || len(str) <= minURLRuneCount || strings.HasPrefix(str, ".") {
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return false
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}
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strTemp := str
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if strings.Contains(str, ":") && !strings.Contains(str, "://") {
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// support no indicated urlscheme but with colon for port number
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// http:// is appended so url.Parse will succeed, strTemp used so it does not impact rxURL.MatchString
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strTemp = "http://" + str
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}
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u, err := url.Parse(strTemp)
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if err != nil {
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return false
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}
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if strings.HasPrefix(u.Host, ".") {
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return false
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}
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if u.Host == "" && (u.Path != "" && !strings.Contains(u.Path, ".")) {
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return false
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}
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return rxURL.MatchString(str)
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}
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// IsRequestURL checks if the string rawurl, assuming
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// it was received in an HTTP request, is a valid
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// URL confirm to RFC 3986
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func IsRequestURL(rawurl string) bool {
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url, err := url.ParseRequestURI(rawurl)
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if err != nil {
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return false //Couldn't even parse the rawurl
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}
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if len(url.Scheme) == 0 {
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return false //No Scheme found
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}
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return true
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}
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// IsRequestURI checks if the string rawurl, assuming
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// it was received in an HTTP request, is an
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// absolute URI or an absolute path.
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func IsRequestURI(rawurl string) bool {
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_, err := url.ParseRequestURI(rawurl)
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return err == nil
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}
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// IsAlpha checks if the string contains only letters (a-zA-Z). Empty string is valid.
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func IsAlpha(str string) bool {
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if IsNull(str) {
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return true
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}
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return rxAlpha.MatchString(str)
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}
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//IsUTFLetter checks if the string contains only unicode letter characters.
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//Similar to IsAlpha but for all languages. Empty string is valid.
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func IsUTFLetter(str string) bool {
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if IsNull(str) {
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return true
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}
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for _, c := range str {
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if !unicode.IsLetter(c) {
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return false
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}
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}
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return true
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}
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// IsAlphanumeric checks if the string contains only letters and numbers. Empty string is valid.
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func IsAlphanumeric(str string) bool {
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if IsNull(str) {
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return true
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}
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return rxAlphanumeric.MatchString(str)
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}
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// IsUTFLetterNumeric checks if the string contains only unicode letters and numbers. Empty string is valid.
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func IsUTFLetterNumeric(str string) bool {
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if IsNull(str) {
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return true
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}
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for _, c := range str {
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if !unicode.IsLetter(c) && !unicode.IsNumber(c) { //letters && numbers are ok
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return false
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}
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}
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return true
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}
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// IsNumeric checks if the string contains only numbers. Empty string is valid.
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func IsNumeric(str string) bool {
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if IsNull(str) {
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return true
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}
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return rxNumeric.MatchString(str)
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}
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// IsUTFNumeric checks if the string contains only unicode numbers of any kind.
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// Numbers can be 0-9 but also Fractions ¾,Roman Ⅸ and Hangzhou 〩. Empty string is valid.
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func IsUTFNumeric(str string) bool {
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if IsNull(str) {
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return true
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}
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if strings.IndexAny(str, "+-") > 0 {
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return false
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}
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if len(str) > 1 {
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str = strings.TrimPrefix(str, "-")
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str = strings.TrimPrefix(str, "+")
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}
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for _, c := range str {
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if !unicode.IsNumber(c) { //numbers && minus sign are ok
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return false
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}
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}
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return true
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}
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// IsUTFDigit checks if the string contains only unicode radix-10 decimal digits. Empty string is valid.
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func IsUTFDigit(str string) bool {
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if IsNull(str) {
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return true
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}
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if strings.IndexAny(str, "+-") > 0 {
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return false
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}
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if len(str) > 1 {
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str = strings.TrimPrefix(str, "-")
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str = strings.TrimPrefix(str, "+")
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}
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for _, c := range str {
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if !unicode.IsDigit(c) { //digits && minus sign are ok
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return false
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}
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}
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return true
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}
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// IsHexadecimal checks if the string is a hexadecimal number.
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func IsHexadecimal(str string) bool {
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return rxHexadecimal.MatchString(str)
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}
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// IsHexcolor checks if the string is a hexadecimal color.
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func IsHexcolor(str string) bool {
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return rxHexcolor.MatchString(str)
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}
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// IsRGBcolor checks if the string is a valid RGB color in form rgb(RRR, GGG, BBB).
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func IsRGBcolor(str string) bool {
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return rxRGBcolor.MatchString(str)
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}
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// IsLowerCase checks if the string is lowercase. Empty string is valid.
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func IsLowerCase(str string) bool {
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if IsNull(str) {
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return true
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}
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return str == strings.ToLower(str)
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}
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// IsUpperCase checks if the string is uppercase. Empty string is valid.
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func IsUpperCase(str string) bool {
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if IsNull(str) {
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return true
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}
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return str == strings.ToUpper(str)
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}
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// HasLowerCase checks if the string contains at least 1 lowercase. Empty string is valid.
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func HasLowerCase(str string) bool {
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if IsNull(str) {
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return true
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}
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return rxHasLowerCase.MatchString(str)
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}
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// HasUpperCase checks if the string contains as least 1 uppercase. Empty string is valid.
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func HasUpperCase(str string) bool {
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if IsNull(str) {
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return true
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}
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return rxHasUpperCase.MatchString(str)
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}
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// IsInt checks if the string is an integer. Empty string is valid.
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func IsInt(str string) bool {
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if IsNull(str) {
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return true
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}
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return rxInt.MatchString(str)
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}
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// IsFloat checks if the string is a float.
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func IsFloat(str string) bool {
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return str != "" && rxFloat.MatchString(str)
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}
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// IsDivisibleBy checks if the string is a number that's divisible by another.
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// If second argument is not valid integer or zero, it's return false.
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// Otherwise, if first argument is not valid integer or zero, it's return true (Invalid string converts to zero).
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func IsDivisibleBy(str, num string) bool {
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f, _ := ToFloat(str)
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p := int64(f)
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q, _ := ToInt(num)
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if q == 0 {
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return false
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}
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return (p == 0) || (p%q == 0)
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}
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// IsNull checks if the string is null.
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func IsNull(str string) bool {
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return len(str) == 0
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}
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// IsNotNull checks if the string is not null.
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func IsNotNull(str string) bool {
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return !IsNull(str)
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}
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// HasWhitespaceOnly checks the string only contains whitespace
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func HasWhitespaceOnly(str string) bool {
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return len(str) > 0 && rxHasWhitespaceOnly.MatchString(str)
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}
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// HasWhitespace checks if the string contains any whitespace
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func HasWhitespace(str string) bool {
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return len(str) > 0 && rxHasWhitespace.MatchString(str)
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}
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// IsByteLength checks if the string's length (in bytes) falls in a range.
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func IsByteLength(str string, min, max int) bool {
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return len(str) >= min && len(str) <= max
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}
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// IsUUIDv3 checks if the string is a UUID version 3.
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func IsUUIDv3(str string) bool {
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return rxUUID3.MatchString(str)
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}
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// IsUUIDv4 checks if the string is a UUID version 4.
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func IsUUIDv4(str string) bool {
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return rxUUID4.MatchString(str)
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}
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// IsUUIDv5 checks if the string is a UUID version 5.
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func IsUUIDv5(str string) bool {
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return rxUUID5.MatchString(str)
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}
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// IsUUID checks if the string is a UUID (version 3, 4 or 5).
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func IsUUID(str string) bool {
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return rxUUID.MatchString(str)
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}
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// IsCreditCard checks if the string is a credit card.
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func IsCreditCard(str string) bool {
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sanitized := notNumberRegexp.ReplaceAllString(str, "")
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if !rxCreditCard.MatchString(sanitized) {
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return false
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}
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var sum int64
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var digit string
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var tmpNum int64
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var shouldDouble bool
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for i := len(sanitized) - 1; i >= 0; i-- {
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digit = sanitized[i:(i + 1)]
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tmpNum, _ = ToInt(digit)
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if shouldDouble {
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tmpNum *= 2
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if tmpNum >= 10 {
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sum += (tmpNum % 10) + 1
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} else {
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sum += tmpNum
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}
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} else {
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sum += tmpNum
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}
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shouldDouble = !shouldDouble
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}
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return sum%10 == 0
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}
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// IsISBN10 checks if the string is an ISBN version 10.
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func IsISBN10(str string) bool {
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return IsISBN(str, 10)
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}
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// IsISBN13 checks if the string is an ISBN version 13.
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func IsISBN13(str string) bool {
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return IsISBN(str, 13)
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}
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// IsISBN checks if the string is an ISBN (version 10 or 13).
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// If version value is not equal to 10 or 13, it will be checks both variants.
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func IsISBN(str string, version int) bool {
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sanitized := whiteSpacesAndMinus.ReplaceAllString(str, "")
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var checksum int32
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var i int32
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if version == 10 {
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if !rxISBN10.MatchString(sanitized) {
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return false
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}
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for i = 0; i < 9; i++ {
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checksum += (i + 1) * int32(sanitized[i]-'0')
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}
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if sanitized[9] == 'X' {
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checksum += 10 * 10
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} else {
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checksum += 10 * int32(sanitized[9]-'0')
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}
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if checksum%11 == 0 {
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return true
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}
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return false
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} else if version == 13 {
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if !rxISBN13.MatchString(sanitized) {
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return false
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}
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factor := []int32{1, 3}
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for i = 0; i < 12; i++ {
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checksum += factor[i%2] * int32(sanitized[i]-'0')
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}
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return (int32(sanitized[12]-'0'))-((10-(checksum%10))%10) == 0
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}
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return IsISBN(str, 10) || IsISBN(str, 13)
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}
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// IsJSON checks if the string is valid JSON (note: uses json.Unmarshal).
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func IsJSON(str string) bool {
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var js json.RawMessage
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return json.Unmarshal([]byte(str), &js) == nil
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}
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// IsMultibyte checks if the string contains one or more multibyte chars. Empty string is valid.
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func IsMultibyte(str string) bool {
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if IsNull(str) {
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return true
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}
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return rxMultibyte.MatchString(str)
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}
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// IsASCII checks if the string contains ASCII chars only. Empty string is valid.
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func IsASCII(str string) bool {
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if IsNull(str) {
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return true
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}
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return rxASCII.MatchString(str)
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}
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// IsPrintableASCII checks if the string contains printable ASCII chars only. Empty string is valid.
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func IsPrintableASCII(str string) bool {
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if IsNull(str) {
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return true
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}
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return rxPrintableASCII.MatchString(str)
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}
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// IsFullWidth checks if the string contains any full-width chars. Empty string is valid.
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func IsFullWidth(str string) bool {
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if IsNull(str) {
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return true
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}
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return rxFullWidth.MatchString(str)
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}
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// IsHalfWidth checks if the string contains any half-width chars. Empty string is valid.
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func IsHalfWidth(str string) bool {
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if IsNull(str) {
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return true
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}
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return rxHalfWidth.MatchString(str)
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}
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// IsVariableWidth checks if the string contains a mixture of full and half-width chars. Empty string is valid.
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func IsVariableWidth(str string) bool {
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if IsNull(str) {
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return true
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}
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return rxHalfWidth.MatchString(str) && rxFullWidth.MatchString(str)
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}
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// IsBase64 checks if a string is base64 encoded.
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func IsBase64(str string) bool {
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return rxBase64.MatchString(str)
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}
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// IsFilePath checks is a string is Win or Unix file path and returns it's type.
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func IsFilePath(str string) (bool, int) {
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if rxWinPath.MatchString(str) {
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//check windows path limit see:
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// http://msdn.microsoft.com/en-us/library/aa365247(VS.85).aspx#maxpath
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if len(str[3:]) > 32767 {
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return false, Win
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}
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return true, Win
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} else if rxUnixPath.MatchString(str) {
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return true, Unix
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}
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return false, Unknown
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}
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// IsDataURI checks if a string is base64 encoded data URI such as an image
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func IsDataURI(str string) bool {
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dataURI := strings.Split(str, ",")
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if !rxDataURI.MatchString(dataURI[0]) {
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return false
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}
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return IsBase64(dataURI[1])
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}
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// IsMagnetURI checks if a string is valid magnet URI
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func IsMagnetURI(str string) bool {
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return rxMagnetURI.MatchString(str)
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}
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// IsISO3166Alpha2 checks if a string is valid two-letter country code
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func IsISO3166Alpha2(str string) bool {
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for _, entry := range ISO3166List {
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if str == entry.Alpha2Code {
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return true
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}
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}
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return false
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}
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// IsISO3166Alpha3 checks if a string is valid three-letter country code
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func IsISO3166Alpha3(str string) bool {
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for _, entry := range ISO3166List {
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if str == entry.Alpha3Code {
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return true
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}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// IsISO693Alpha2 checks if a string is valid two-letter language code
|
|
func IsISO693Alpha2(str string) bool {
|
|
for _, entry := range ISO693List {
|
|
if str == entry.Alpha2Code {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// IsISO693Alpha3b checks if a string is valid three-letter language code
|
|
func IsISO693Alpha3b(str string) bool {
|
|
for _, entry := range ISO693List {
|
|
if str == entry.Alpha3bCode {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// IsDNSName will validate the given string as a DNS name
|
|
func IsDNSName(str string) bool {
|
|
if str == "" || len(strings.Replace(str, ".", "", -1)) > 255 {
|
|
// constraints already violated
|
|
return false
|
|
}
|
|
return !IsIP(str) && rxDNSName.MatchString(str)
|
|
}
|
|
|
|
// IsHash checks if a string is a hash of type algorithm.
|
|
// Algorithm is one of ['md4', 'md5', 'sha1', 'sha256', 'sha384', 'sha512', 'ripemd128', 'ripemd160', 'tiger128', 'tiger160', 'tiger192', 'crc32', 'crc32b']
|
|
func IsHash(str string, algorithm string) bool {
|
|
var len string
|
|
algo := strings.ToLower(algorithm)
|
|
|
|
if algo == "crc32" || algo == "crc32b" {
|
|
len = "8"
|
|
} else if algo == "md5" || algo == "md4" || algo == "ripemd128" || algo == "tiger128" {
|
|
len = "32"
|
|
} else if algo == "sha1" || algo == "ripemd160" || algo == "tiger160" {
|
|
len = "40"
|
|
} else if algo == "tiger192" {
|
|
len = "48"
|
|
} else if algo == "sha256" {
|
|
len = "64"
|
|
} else if algo == "sha384" {
|
|
len = "96"
|
|
} else if algo == "sha512" {
|
|
len = "128"
|
|
} else {
|
|
return false
|
|
}
|
|
|
|
return Matches(str, "^[a-f0-9]{"+len+"}$")
|
|
}
|
|
|
|
// IsSHA512 checks is a string is a SHA512 hash. Alias for `IsHash(str, "sha512")`
|
|
func IsSHA512(str string) bool {
|
|
return IsHash(str, "sha512")
|
|
}
|
|
|
|
// IsSHA384 checks is a string is a SHA384 hash. Alias for `IsHash(str, "sha384")`
|
|
func IsSHA384(str string) bool {
|
|
return IsHash(str, "sha384")
|
|
}
|
|
|
|
// IsSHA256 checks is a string is a SHA256 hash. Alias for `IsHash(str, "sha256")`
|
|
func IsSHA256(str string) bool {
|
|
return IsHash(str, "sha256")
|
|
}
|
|
|
|
// IsTiger192 checks is a string is a Tiger192 hash. Alias for `IsHash(str, "tiger192")`
|
|
func IsTiger192(str string) bool {
|
|
return IsHash(str, "tiger192")
|
|
}
|
|
|
|
// IsTiger160 checks is a string is a Tiger160 hash. Alias for `IsHash(str, "tiger160")`
|
|
func IsTiger160(str string) bool {
|
|
return IsHash(str, "tiger160")
|
|
}
|
|
|
|
// IsRipeMD160 checks is a string is a RipeMD160 hash. Alias for `IsHash(str, "ripemd160")`
|
|
func IsRipeMD160(str string) bool {
|
|
return IsHash(str, "ripemd160")
|
|
}
|
|
|
|
// IsSHA1 checks is a string is a SHA-1 hash. Alias for `IsHash(str, "sha1")`
|
|
func IsSHA1(str string) bool {
|
|
return IsHash(str, "sha1")
|
|
}
|
|
|
|
// IsTiger128 checks is a string is a Tiger128 hash. Alias for `IsHash(str, "tiger128")`
|
|
func IsTiger128(str string) bool {
|
|
return IsHash(str, "tiger128")
|
|
}
|
|
|
|
// IsRipeMD128 checks is a string is a RipeMD128 hash. Alias for `IsHash(str, "ripemd128")`
|
|
func IsRipeMD128(str string) bool {
|
|
return IsHash(str, "ripemd128")
|
|
}
|
|
|
|
// IsCRC32 checks is a string is a CRC32 hash. Alias for `IsHash(str, "crc32")`
|
|
func IsCRC32(str string) bool {
|
|
return IsHash(str, "crc32")
|
|
}
|
|
|
|
// IsCRC32b checks is a string is a CRC32b hash. Alias for `IsHash(str, "crc32b")`
|
|
func IsCRC32b(str string) bool {
|
|
return IsHash(str, "crc32b")
|
|
}
|
|
|
|
// IsMD5 checks is a string is a MD5 hash. Alias for `IsHash(str, "md5")`
|
|
func IsMD5(str string) bool {
|
|
return IsHash(str, "md5")
|
|
}
|
|
|
|
// IsMD4 checks is a string is a MD4 hash. Alias for `IsHash(str, "md4")`
|
|
func IsMD4(str string) bool {
|
|
return IsHash(str, "md4")
|
|
}
|
|
|
|
// IsDialString validates the given string for usage with the various Dial() functions
|
|
func IsDialString(str string) bool {
|
|
if h, p, err := net.SplitHostPort(str); err == nil && h != "" && p != "" && (IsDNSName(h) || IsIP(h)) && IsPort(p) {
|
|
return true
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// IsIP checks if a string is either IP version 4 or 6. Alias for `net.ParseIP`
|
|
func IsIP(str string) bool {
|
|
return net.ParseIP(str) != nil
|
|
}
|
|
|
|
// IsPort checks if a string represents a valid port
|
|
func IsPort(str string) bool {
|
|
if i, err := strconv.Atoi(str); err == nil && i > 0 && i < 65536 {
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
// IsIPv4 checks if the string is an IP version 4.
|
|
func IsIPv4(str string) bool {
|
|
ip := net.ParseIP(str)
|
|
return ip != nil && strings.Contains(str, ".")
|
|
}
|
|
|
|
// IsIPv6 checks if the string is an IP version 6.
|
|
func IsIPv6(str string) bool {
|
|
ip := net.ParseIP(str)
|
|
return ip != nil && strings.Contains(str, ":")
|
|
}
|
|
|
|
// IsCIDR checks if the string is an valid CIDR notiation (IPV4 & IPV6)
|
|
func IsCIDR(str string) bool {
|
|
_, _, err := net.ParseCIDR(str)
|
|
return err == nil
|
|
}
|
|
|
|
// IsMAC checks if a string is valid MAC address.
|
|
// Possible MAC formats:
|
|
// 01:23:45:67:89:ab
|
|
// 01:23:45:67:89:ab:cd:ef
|
|
// 01-23-45-67-89-ab
|
|
// 01-23-45-67-89-ab-cd-ef
|
|
// 0123.4567.89ab
|
|
// 0123.4567.89ab.cdef
|
|
func IsMAC(str string) bool {
|
|
_, err := net.ParseMAC(str)
|
|
return err == nil
|
|
}
|
|
|
|
// IsHost checks if the string is a valid IP (both v4 and v6) or a valid DNS name
|
|
func IsHost(str string) bool {
|
|
return IsIP(str) || IsDNSName(str)
|
|
}
|
|
|
|
// IsMongoID checks if the string is a valid hex-encoded representation of a MongoDB ObjectId.
|
|
func IsMongoID(str string) bool {
|
|
return rxHexadecimal.MatchString(str) && (len(str) == 24)
|
|
}
|
|
|
|
// IsLatitude checks if a string is valid latitude.
|
|
func IsLatitude(str string) bool {
|
|
return rxLatitude.MatchString(str)
|
|
}
|
|
|
|
// IsLongitude checks if a string is valid longitude.
|
|
func IsLongitude(str string) bool {
|
|
return rxLongitude.MatchString(str)
|
|
}
|
|
|
|
// IsIMEI checks if a string is valid IMEI
|
|
func IsIMEI(str string) bool {
|
|
return rxIMEI.MatchString(str)
|
|
}
|
|
|
|
// IsIMSI checks if a string is valid IMSI
|
|
func IsIMSI(str string) bool {
|
|
if !rxIMSI.MatchString(str) {
|
|
return false
|
|
}
|
|
|
|
mcc, err := strconv.ParseInt(str[0:3], 10, 32)
|
|
if err != nil {
|
|
return false
|
|
}
|
|
|
|
switch mcc {
|
|
case 202, 204, 206, 208, 212, 213, 214, 216, 218, 219:
|
|
case 220, 221, 222, 226, 228, 230, 231, 232, 234, 235:
|
|
case 238, 240, 242, 244, 246, 247, 248, 250, 255, 257:
|
|
case 259, 260, 262, 266, 268, 270, 272, 274, 276, 278:
|
|
case 280, 282, 283, 284, 286, 288, 289, 290, 292, 293:
|
|
case 294, 295, 297, 302, 308, 310, 311, 312, 313, 314:
|
|
case 315, 316, 330, 332, 334, 338, 340, 342, 344, 346:
|
|
case 348, 350, 352, 354, 356, 358, 360, 362, 363, 364:
|
|
case 365, 366, 368, 370, 372, 374, 376, 400, 401, 402:
|
|
case 404, 405, 406, 410, 412, 413, 414, 415, 416, 417:
|
|
case 418, 419, 420, 421, 422, 424, 425, 426, 427, 428:
|
|
case 429, 430, 431, 432, 434, 436, 437, 438, 440, 441:
|
|
case 450, 452, 454, 455, 456, 457, 460, 461, 466, 467:
|
|
case 470, 472, 502, 505, 510, 514, 515, 520, 525, 528:
|
|
case 530, 536, 537, 539, 540, 541, 542, 543, 544, 545:
|
|
case 546, 547, 548, 549, 550, 551, 552, 553, 554, 555:
|
|
case 602, 603, 604, 605, 606, 607, 608, 609, 610, 611:
|
|
case 612, 613, 614, 615, 616, 617, 618, 619, 620, 621:
|
|
case 622, 623, 624, 625, 626, 627, 628, 629, 630, 631:
|
|
case 632, 633, 634, 635, 636, 637, 638, 639, 640, 641:
|
|
case 642, 643, 645, 646, 647, 648, 649, 650, 651, 652:
|
|
case 653, 654, 655, 657, 658, 659, 702, 704, 706, 708:
|
|
case 710, 712, 714, 716, 722, 724, 730, 732, 734, 736:
|
|
case 738, 740, 742, 744, 746, 748, 750, 995:
|
|
return true
|
|
default:
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
|
|
// IsRsaPublicKey checks if a string is valid public key with provided length
|
|
func IsRsaPublicKey(str string, keylen int) bool {
|
|
bb := bytes.NewBufferString(str)
|
|
pemBytes, err := ioutil.ReadAll(bb)
|
|
if err != nil {
|
|
return false
|
|
}
|
|
block, _ := pem.Decode(pemBytes)
|
|
if block != nil && block.Type != "PUBLIC KEY" {
|
|
return false
|
|
}
|
|
var der []byte
|
|
|
|
if block != nil {
|
|
der = block.Bytes
|
|
} else {
|
|
der, err = base64.StdEncoding.DecodeString(str)
|
|
if err != nil {
|
|
return false
|
|
}
|
|
}
|
|
|
|
key, err := x509.ParsePKIXPublicKey(der)
|
|
if err != nil {
|
|
return false
|
|
}
|
|
pubkey, ok := key.(*rsa.PublicKey)
|
|
if !ok {
|
|
return false
|
|
}
|
|
bitlen := len(pubkey.N.Bytes()) * 8
|
|
return bitlen == int(keylen)
|
|
}
|
|
|
|
func toJSONName(tag string) string {
|
|
if tag == "" {
|
|
return ""
|
|
}
|
|
|
|
// JSON name always comes first. If there's no options then split[0] is
|
|
// JSON name, if JSON name is not set, then split[0] is an empty string.
|
|
split := strings.SplitN(tag, ",", 2)
|
|
|
|
name := split[0]
|
|
|
|
// However it is possible that the field is skipped when
|
|
// (de-)serializing from/to JSON, in which case assume that there is no
|
|
// tag name to use
|
|
if name == "-" {
|
|
return ""
|
|
}
|
|
return name
|
|
}
|
|
|
|
func prependPathToErrors(err error, path string) error {
|
|
switch err2 := err.(type) {
|
|
case Error:
|
|
err2.Path = append([]string{path}, err2.Path...)
|
|
return err2
|
|
case Errors:
|
|
errors := err2.Errors()
|
|
for i, err3 := range errors {
|
|
errors[i] = prependPathToErrors(err3, path)
|
|
}
|
|
return err2
|
|
}
|
|
return err
|
|
}
|
|
|
|
// ValidateArray performs validation according to condition iterator that validates every element of the array
|
|
func ValidateArray(array []interface{}, iterator ConditionIterator) bool {
|
|
return Every(array, iterator)
|
|
}
|
|
|
|
// ValidateMap use validation map for fields.
|
|
// result will be equal to `false` if there are any errors.
|
|
// s is the map containing the data to be validated.
|
|
// m is the validation map in the form:
|
|
// map[string]interface{}{"name":"required,alpha","address":map[string]interface{}{"line1":"required,alphanum"}}
|
|
func ValidateMap(s map[string]interface{}, m map[string]interface{}) (bool, error) {
|
|
if s == nil {
|
|
return true, nil
|
|
}
|
|
result := true
|
|
var err error
|
|
var errs Errors
|
|
var index int
|
|
val := reflect.ValueOf(s)
|
|
for key, value := range s {
|
|
presentResult := true
|
|
validator, ok := m[key]
|
|
if !ok {
|
|
presentResult = false
|
|
var err error
|
|
err = fmt.Errorf("all map keys has to be present in the validation map; got %s", key)
|
|
err = prependPathToErrors(err, key)
|
|
errs = append(errs, err)
|
|
}
|
|
valueField := reflect.ValueOf(value)
|
|
mapResult := true
|
|
typeResult := true
|
|
structResult := true
|
|
resultField := true
|
|
switch subValidator := validator.(type) {
|
|
case map[string]interface{}:
|
|
var err error
|
|
if v, ok := value.(map[string]interface{}); !ok {
|
|
mapResult = false
|
|
err = fmt.Errorf("map validator has to be for the map type only; got %s", valueField.Type().String())
|
|
err = prependPathToErrors(err, key)
|
|
errs = append(errs, err)
|
|
} else {
|
|
mapResult, err = ValidateMap(v, subValidator)
|
|
if err != nil {
|
|
mapResult = false
|
|
err = prependPathToErrors(err, key)
|
|
errs = append(errs, err)
|
|
}
|
|
}
|
|
case string:
|
|
if (valueField.Kind() == reflect.Struct ||
|
|
(valueField.Kind() == reflect.Ptr && valueField.Elem().Kind() == reflect.Struct)) &&
|
|
subValidator != "-" {
|
|
var err error
|
|
structResult, err = ValidateStruct(valueField.Interface())
|
|
if err != nil {
|
|
err = prependPathToErrors(err, key)
|
|
errs = append(errs, err)
|
|
}
|
|
}
|
|
resultField, err = typeCheck(valueField, reflect.StructField{
|
|
Name: key,
|
|
PkgPath: "",
|
|
Type: val.Type(),
|
|
Tag: reflect.StructTag(fmt.Sprintf("%s:%q", tagName, subValidator)),
|
|
Offset: 0,
|
|
Index: []int{index},
|
|
Anonymous: false,
|
|
}, val, nil)
|
|
if err != nil {
|
|
errs = append(errs, err)
|
|
}
|
|
case nil:
|
|
// already handlerd when checked before
|
|
default:
|
|
typeResult = false
|
|
err = fmt.Errorf("map validator has to be either map[string]interface{} or string; got %s", valueField.Type().String())
|
|
err = prependPathToErrors(err, key)
|
|
errs = append(errs, err)
|
|
}
|
|
result = result && presentResult && typeResult && resultField && structResult && mapResult
|
|
index++
|
|
}
|
|
// checks required keys
|
|
requiredResult := true
|
|
for key, value := range m {
|
|
if schema, ok := value.(string); ok {
|
|
tags := parseTagIntoMap(schema)
|
|
if required, ok := tags["required"]; ok {
|
|
if _, ok := s[key]; !ok {
|
|
requiredResult = false
|
|
if required.customErrorMessage != "" {
|
|
err = Error{key, fmt.Errorf(required.customErrorMessage), true, "required", []string{}}
|
|
} else {
|
|
err = Error{key, fmt.Errorf("required field missing"), false, "required", []string{}}
|
|
}
|
|
errs = append(errs, err)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if len(errs) > 0 {
|
|
err = errs
|
|
}
|
|
return result && requiredResult, err
|
|
}
|
|
|
|
// ValidateStruct use tags for fields.
|
|
// result will be equal to `false` if there are any errors.
|
|
// todo currently there is no guarantee that errors will be returned in predictable order (tests may to fail)
|
|
func ValidateStruct(s interface{}) (bool, error) {
|
|
if s == nil {
|
|
return true, nil
|
|
}
|
|
result := true
|
|
var err error
|
|
val := reflect.ValueOf(s)
|
|
if val.Kind() == reflect.Interface || val.Kind() == reflect.Ptr {
|
|
val = val.Elem()
|
|
}
|
|
// we only accept structs
|
|
if val.Kind() != reflect.Struct {
|
|
return false, fmt.Errorf("function only accepts structs; got %s", val.Kind())
|
|
}
|
|
var errs Errors
|
|
for i := 0; i < val.NumField(); i++ {
|
|
valueField := val.Field(i)
|
|
typeField := val.Type().Field(i)
|
|
if typeField.PkgPath != "" {
|
|
continue // Private field
|
|
}
|
|
structResult := true
|
|
if valueField.Kind() == reflect.Interface {
|
|
valueField = valueField.Elem()
|
|
}
|
|
if (valueField.Kind() == reflect.Struct ||
|
|
(valueField.Kind() == reflect.Ptr && valueField.Elem().Kind() == reflect.Struct)) &&
|
|
typeField.Tag.Get(tagName) != "-" {
|
|
var err error
|
|
structResult, err = ValidateStruct(valueField.Interface())
|
|
if err != nil {
|
|
err = prependPathToErrors(err, typeField.Name)
|
|
errs = append(errs, err)
|
|
}
|
|
}
|
|
resultField, err2 := typeCheck(valueField, typeField, val, nil)
|
|
if err2 != nil {
|
|
|
|
// Replace structure name with JSON name if there is a tag on the variable
|
|
jsonTag := toJSONName(typeField.Tag.Get("json"))
|
|
if jsonTag != "" {
|
|
switch jsonError := err2.(type) {
|
|
case Error:
|
|
jsonError.Name = jsonTag
|
|
err2 = jsonError
|
|
case Errors:
|
|
for i2, err3 := range jsonError {
|
|
switch customErr := err3.(type) {
|
|
case Error:
|
|
customErr.Name = jsonTag
|
|
jsonError[i2] = customErr
|
|
}
|
|
}
|
|
|
|
err2 = jsonError
|
|
}
|
|
}
|
|
|
|
errs = append(errs, err2)
|
|
}
|
|
result = result && resultField && structResult
|
|
}
|
|
if len(errs) > 0 {
|
|
err = errs
|
|
}
|
|
return result, err
|
|
}
|
|
|
|
// ValidateStructAsync performs async validation of the struct and returns results through the channels
|
|
func ValidateStructAsync(s interface{}) (<-chan bool, <-chan error) {
|
|
res := make(chan bool)
|
|
errors := make(chan error)
|
|
|
|
go func() {
|
|
defer close(res)
|
|
defer close(errors)
|
|
|
|
isValid, isFailed := ValidateStruct(s)
|
|
|
|
res <- isValid
|
|
errors <- isFailed
|
|
}()
|
|
|
|
return res, errors
|
|
}
|
|
|
|
// ValidateMapAsync performs async validation of the map and returns results through the channels
|
|
func ValidateMapAsync(s map[string]interface{}, m map[string]interface{}) (<-chan bool, <-chan error) {
|
|
res := make(chan bool)
|
|
errors := make(chan error)
|
|
|
|
go func() {
|
|
defer close(res)
|
|
defer close(errors)
|
|
|
|
isValid, isFailed := ValidateMap(s, m)
|
|
|
|
res <- isValid
|
|
errors <- isFailed
|
|
}()
|
|
|
|
return res, errors
|
|
}
|
|
|
|
// parseTagIntoMap parses a struct tag `valid:required~Some error message,length(2|3)` into map[string]string{"required": "Some error message", "length(2|3)": ""}
|
|
func parseTagIntoMap(tag string) tagOptionsMap {
|
|
optionsMap := make(tagOptionsMap)
|
|
options := strings.Split(tag, ",")
|
|
|
|
for i, option := range options {
|
|
option = strings.TrimSpace(option)
|
|
|
|
validationOptions := strings.Split(option, "~")
|
|
if !isValidTag(validationOptions[0]) {
|
|
continue
|
|
}
|
|
if len(validationOptions) == 2 {
|
|
optionsMap[validationOptions[0]] = tagOption{validationOptions[0], validationOptions[1], i}
|
|
} else {
|
|
optionsMap[validationOptions[0]] = tagOption{validationOptions[0], "", i}
|
|
}
|
|
}
|
|
return optionsMap
|
|
}
|
|
|
|
func isValidTag(s string) bool {
|
|
if s == "" {
|
|
return false
|
|
}
|
|
for _, c := range s {
|
|
switch {
|
|
case strings.ContainsRune("\\'\"!#$%&()*+-./:<=>?@[]^_{|}~ ", c):
|
|
// Backslash and quote chars are reserved, but
|
|
// otherwise any punctuation chars are allowed
|
|
// in a tag name.
|
|
default:
|
|
if !unicode.IsLetter(c) && !unicode.IsDigit(c) {
|
|
return false
|
|
}
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
// IsSSN will validate the given string as a U.S. Social Security Number
|
|
func IsSSN(str string) bool {
|
|
if str == "" || len(str) != 11 {
|
|
return false
|
|
}
|
|
return rxSSN.MatchString(str)
|
|
}
|
|
|
|
// IsSemver checks if string is valid semantic version
|
|
func IsSemver(str string) bool {
|
|
return rxSemver.MatchString(str)
|
|
}
|
|
|
|
// IsType checks if interface is of some type
|
|
func IsType(v interface{}, params ...string) bool {
|
|
if len(params) == 1 {
|
|
typ := params[0]
|
|
return strings.Replace(reflect.TypeOf(v).String(), " ", "", -1) == strings.Replace(typ, " ", "", -1)
|
|
}
|
|
return false
|
|
}
|
|
|
|
// IsTime checks if string is valid according to given format
|
|
func IsTime(str string, format string) bool {
|
|
_, err := time.Parse(format, str)
|
|
return err == nil
|
|
}
|
|
|
|
// IsUnixTime checks if string is valid unix timestamp value
|
|
func IsUnixTime(str string) bool {
|
|
if _, err := strconv.Atoi(str); err == nil {
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
// IsRFC3339 checks if string is valid timestamp value according to RFC3339
|
|
func IsRFC3339(str string) bool {
|
|
return IsTime(str, time.RFC3339)
|
|
}
|
|
|
|
// IsRFC3339WithoutZone checks if string is valid timestamp value according to RFC3339 which excludes the timezone.
|
|
func IsRFC3339WithoutZone(str string) bool {
|
|
return IsTime(str, rfc3339WithoutZone)
|
|
}
|
|
|
|
// IsISO4217 checks if string is valid ISO currency code
|
|
func IsISO4217(str string) bool {
|
|
for _, currency := range ISO4217List {
|
|
if str == currency {
|
|
return true
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// ByteLength checks string's length
|
|
func ByteLength(str string, params ...string) bool {
|
|
if len(params) == 2 {
|
|
min, _ := ToInt(params[0])
|
|
max, _ := ToInt(params[1])
|
|
return len(str) >= int(min) && len(str) <= int(max)
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// RuneLength checks string's length
|
|
// Alias for StringLength
|
|
func RuneLength(str string, params ...string) bool {
|
|
return StringLength(str, params...)
|
|
}
|
|
|
|
// IsRsaPub checks whether string is valid RSA key
|
|
// Alias for IsRsaPublicKey
|
|
func IsRsaPub(str string, params ...string) bool {
|
|
if len(params) == 1 {
|
|
len, _ := ToInt(params[0])
|
|
return IsRsaPublicKey(str, int(len))
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// StringMatches checks if a string matches a given pattern.
|
|
func StringMatches(s string, params ...string) bool {
|
|
if len(params) == 1 {
|
|
pattern := params[0]
|
|
return Matches(s, pattern)
|
|
}
|
|
return false
|
|
}
|
|
|
|
// StringLength checks string's length (including multi byte strings)
|
|
func StringLength(str string, params ...string) bool {
|
|
|
|
if len(params) == 2 {
|
|
strLength := utf8.RuneCountInString(str)
|
|
min, _ := ToInt(params[0])
|
|
max, _ := ToInt(params[1])
|
|
return strLength >= int(min) && strLength <= int(max)
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// MinStringLength checks string's minimum length (including multi byte strings)
|
|
func MinStringLength(str string, params ...string) bool {
|
|
|
|
if len(params) == 1 {
|
|
strLength := utf8.RuneCountInString(str)
|
|
min, _ := ToInt(params[0])
|
|
return strLength >= int(min)
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// MaxStringLength checks string's maximum length (including multi byte strings)
|
|
func MaxStringLength(str string, params ...string) bool {
|
|
|
|
if len(params) == 1 {
|
|
strLength := utf8.RuneCountInString(str)
|
|
max, _ := ToInt(params[0])
|
|
return strLength <= int(max)
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// Range checks string's length
|
|
func Range(str string, params ...string) bool {
|
|
if len(params) == 2 {
|
|
value, _ := ToFloat(str)
|
|
min, _ := ToFloat(params[0])
|
|
max, _ := ToFloat(params[1])
|
|
return InRange(value, min, max)
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// IsInRaw checks if string is in list of allowed values
|
|
func IsInRaw(str string, params ...string) bool {
|
|
if len(params) == 1 {
|
|
rawParams := params[0]
|
|
|
|
parsedParams := strings.Split(rawParams, "|")
|
|
|
|
return IsIn(str, parsedParams...)
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// IsIn checks if string str is a member of the set of strings params
|
|
func IsIn(str string, params ...string) bool {
|
|
for _, param := range params {
|
|
if str == param {
|
|
return true
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
func checkRequired(v reflect.Value, t reflect.StructField, options tagOptionsMap) (bool, error) {
|
|
if nilPtrAllowedByRequired {
|
|
k := v.Kind()
|
|
if (k == reflect.Ptr || k == reflect.Interface) && v.IsNil() {
|
|
return true, nil
|
|
}
|
|
}
|
|
|
|
if requiredOption, isRequired := options["required"]; isRequired {
|
|
if len(requiredOption.customErrorMessage) > 0 {
|
|
return false, Error{t.Name, fmt.Errorf(requiredOption.customErrorMessage), true, "required", []string{}}
|
|
}
|
|
return false, Error{t.Name, fmt.Errorf("non zero value required"), false, "required", []string{}}
|
|
} else if _, isOptional := options["optional"]; fieldsRequiredByDefault && !isOptional {
|
|
return false, Error{t.Name, fmt.Errorf("Missing required field"), false, "required", []string{}}
|
|
}
|
|
// not required and empty is valid
|
|
return true, nil
|
|
}
|
|
|
|
func typeCheck(v reflect.Value, t reflect.StructField, o reflect.Value, options tagOptionsMap) (isValid bool, resultErr error) {
|
|
if !v.IsValid() {
|
|
return false, nil
|
|
}
|
|
|
|
tag := t.Tag.Get(tagName)
|
|
|
|
// checks if the field should be ignored
|
|
switch tag {
|
|
case "":
|
|
if v.Kind() != reflect.Slice && v.Kind() != reflect.Map {
|
|
if !fieldsRequiredByDefault {
|
|
return true, nil
|
|
}
|
|
return false, Error{t.Name, fmt.Errorf("All fields are required to at least have one validation defined"), false, "required", []string{}}
|
|
}
|
|
case "-":
|
|
return true, nil
|
|
}
|
|
|
|
isRootType := false
|
|
if options == nil {
|
|
isRootType = true
|
|
options = parseTagIntoMap(tag)
|
|
}
|
|
|
|
if isEmptyValue(v) {
|
|
// an empty value is not validated, checks only required
|
|
isValid, resultErr = checkRequired(v, t, options)
|
|
for key := range options {
|
|
delete(options, key)
|
|
}
|
|
return isValid, resultErr
|
|
}
|
|
|
|
var customTypeErrors Errors
|
|
optionsOrder := options.orderedKeys()
|
|
for _, validatorName := range optionsOrder {
|
|
validatorStruct := options[validatorName]
|
|
if validatefunc, ok := CustomTypeTagMap.Get(validatorName); ok {
|
|
delete(options, validatorName)
|
|
|
|
if result := validatefunc(v.Interface(), o.Interface()); !result {
|
|
if len(validatorStruct.customErrorMessage) > 0 {
|
|
customTypeErrors = append(customTypeErrors, Error{Name: t.Name, Err: TruncatingErrorf(validatorStruct.customErrorMessage, fmt.Sprint(v), validatorName), CustomErrorMessageExists: true, Validator: stripParams(validatorName)})
|
|
continue
|
|
}
|
|
customTypeErrors = append(customTypeErrors, Error{Name: t.Name, Err: fmt.Errorf("%s does not validate as %s", fmt.Sprint(v), validatorName), CustomErrorMessageExists: false, Validator: stripParams(validatorName)})
|
|
}
|
|
}
|
|
}
|
|
|
|
if len(customTypeErrors.Errors()) > 0 {
|
|
return false, customTypeErrors
|
|
}
|
|
|
|
if isRootType {
|
|
// Ensure that we've checked the value by all specified validators before report that the value is valid
|
|
defer func() {
|
|
delete(options, "optional")
|
|
delete(options, "required")
|
|
|
|
if isValid && resultErr == nil && len(options) != 0 {
|
|
optionsOrder := options.orderedKeys()
|
|
for _, validator := range optionsOrder {
|
|
isValid = false
|
|
resultErr = Error{t.Name, fmt.Errorf(
|
|
"The following validator is invalid or can't be applied to the field: %q", validator), false, stripParams(validator), []string{}}
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
|
|
for _, validatorSpec := range optionsOrder {
|
|
validatorStruct := options[validatorSpec]
|
|
var negate bool
|
|
validator := validatorSpec
|
|
customMsgExists := len(validatorStruct.customErrorMessage) > 0
|
|
|
|
// checks whether the tag looks like '!something' or 'something'
|
|
if validator[0] == '!' {
|
|
validator = validator[1:]
|
|
negate = true
|
|
}
|
|
|
|
// checks for interface param validators
|
|
for key, value := range InterfaceParamTagRegexMap {
|
|
ps := value.FindStringSubmatch(validator)
|
|
if len(ps) == 0 {
|
|
continue
|
|
}
|
|
|
|
validatefunc, ok := InterfaceParamTagMap[key]
|
|
if !ok {
|
|
continue
|
|
}
|
|
|
|
delete(options, validatorSpec)
|
|
|
|
field := fmt.Sprint(v)
|
|
if result := validatefunc(v.Interface(), ps[1:]...); (!result && !negate) || (result && negate) {
|
|
if customMsgExists {
|
|
return false, Error{t.Name, TruncatingErrorf(validatorStruct.customErrorMessage, field, validator), customMsgExists, stripParams(validatorSpec), []string{}}
|
|
}
|
|
if negate {
|
|
return false, Error{t.Name, fmt.Errorf("%s does validate as %s", field, validator), customMsgExists, stripParams(validatorSpec), []string{}}
|
|
}
|
|
return false, Error{t.Name, fmt.Errorf("%s does not validate as %s", field, validator), customMsgExists, stripParams(validatorSpec), []string{}}
|
|
}
|
|
}
|
|
}
|
|
|
|
switch v.Kind() {
|
|
case reflect.Bool,
|
|
reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
|
|
reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr,
|
|
reflect.Float32, reflect.Float64,
|
|
reflect.String:
|
|
// for each tag option checks the map of validator functions
|
|
for _, validatorSpec := range optionsOrder {
|
|
validatorStruct := options[validatorSpec]
|
|
var negate bool
|
|
validator := validatorSpec
|
|
customMsgExists := len(validatorStruct.customErrorMessage) > 0
|
|
|
|
// checks whether the tag looks like '!something' or 'something'
|
|
if validator[0] == '!' {
|
|
validator = validator[1:]
|
|
negate = true
|
|
}
|
|
|
|
// checks for param validators
|
|
for key, value := range ParamTagRegexMap {
|
|
ps := value.FindStringSubmatch(validator)
|
|
if len(ps) == 0 {
|
|
continue
|
|
}
|
|
|
|
validatefunc, ok := ParamTagMap[key]
|
|
if !ok {
|
|
continue
|
|
}
|
|
|
|
delete(options, validatorSpec)
|
|
|
|
switch v.Kind() {
|
|
case reflect.String,
|
|
reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
|
|
reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64,
|
|
reflect.Float32, reflect.Float64:
|
|
|
|
field := fmt.Sprint(v) // make value into string, then validate with regex
|
|
if result := validatefunc(field, ps[1:]...); (!result && !negate) || (result && negate) {
|
|
if customMsgExists {
|
|
return false, Error{t.Name, TruncatingErrorf(validatorStruct.customErrorMessage, field, validator), customMsgExists, stripParams(validatorSpec), []string{}}
|
|
}
|
|
if negate {
|
|
return false, Error{t.Name, fmt.Errorf("%s does validate as %s", field, validator), customMsgExists, stripParams(validatorSpec), []string{}}
|
|
}
|
|
return false, Error{t.Name, fmt.Errorf("%s does not validate as %s", field, validator), customMsgExists, stripParams(validatorSpec), []string{}}
|
|
}
|
|
default:
|
|
// type not yet supported, fail
|
|
return false, Error{t.Name, fmt.Errorf("Validator %s doesn't support kind %s", validator, v.Kind()), false, stripParams(validatorSpec), []string{}}
|
|
}
|
|
}
|
|
|
|
if validatefunc, ok := TagMap[validator]; ok {
|
|
delete(options, validatorSpec)
|
|
|
|
switch v.Kind() {
|
|
case reflect.String,
|
|
reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
|
|
reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64,
|
|
reflect.Float32, reflect.Float64:
|
|
field := fmt.Sprint(v) // make value into string, then validate with regex
|
|
if result := validatefunc(field); !result && !negate || result && negate {
|
|
if customMsgExists {
|
|
return false, Error{t.Name, TruncatingErrorf(validatorStruct.customErrorMessage, field, validator), customMsgExists, stripParams(validatorSpec), []string{}}
|
|
}
|
|
if negate {
|
|
return false, Error{t.Name, fmt.Errorf("%s does validate as %s", field, validator), customMsgExists, stripParams(validatorSpec), []string{}}
|
|
}
|
|
return false, Error{t.Name, fmt.Errorf("%s does not validate as %s", field, validator), customMsgExists, stripParams(validatorSpec), []string{}}
|
|
}
|
|
default:
|
|
//Not Yet Supported Types (Fail here!)
|
|
err := fmt.Errorf("Validator %s doesn't support kind %s for value %v", validator, v.Kind(), v)
|
|
return false, Error{t.Name, err, false, stripParams(validatorSpec), []string{}}
|
|
}
|
|
}
|
|
}
|
|
return true, nil
|
|
case reflect.Map:
|
|
if v.Type().Key().Kind() != reflect.String {
|
|
return false, &UnsupportedTypeError{v.Type()}
|
|
}
|
|
var sv stringValues
|
|
sv = v.MapKeys()
|
|
sort.Sort(sv)
|
|
result := true
|
|
for i, k := range sv {
|
|
var resultItem bool
|
|
var err error
|
|
if v.MapIndex(k).Kind() != reflect.Struct {
|
|
resultItem, err = typeCheck(v.MapIndex(k), t, o, options)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
} else {
|
|
resultItem, err = ValidateStruct(v.MapIndex(k).Interface())
|
|
if err != nil {
|
|
err = prependPathToErrors(err, t.Name+"."+sv[i].Interface().(string))
|
|
return false, err
|
|
}
|
|
}
|
|
result = result && resultItem
|
|
}
|
|
return result, nil
|
|
case reflect.Slice, reflect.Array:
|
|
result := true
|
|
for i := 0; i < v.Len(); i++ {
|
|
var resultItem bool
|
|
var err error
|
|
if v.Index(i).Kind() != reflect.Struct {
|
|
resultItem, err = typeCheck(v.Index(i), t, o, options)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
} else {
|
|
resultItem, err = ValidateStruct(v.Index(i).Interface())
|
|
if err != nil {
|
|
err = prependPathToErrors(err, t.Name+"."+strconv.Itoa(i))
|
|
return false, err
|
|
}
|
|
}
|
|
result = result && resultItem
|
|
}
|
|
return result, nil
|
|
case reflect.Interface:
|
|
// If the value is an interface then encode its element
|
|
if v.IsNil() {
|
|
return true, nil
|
|
}
|
|
return ValidateStruct(v.Interface())
|
|
case reflect.Ptr:
|
|
// If the value is a pointer then checks its element
|
|
if v.IsNil() {
|
|
return true, nil
|
|
}
|
|
return typeCheck(v.Elem(), t, o, options)
|
|
case reflect.Struct:
|
|
return true, nil
|
|
default:
|
|
return false, &UnsupportedTypeError{v.Type()}
|
|
}
|
|
}
|
|
|
|
func stripParams(validatorString string) string {
|
|
return paramsRegexp.ReplaceAllString(validatorString, "")
|
|
}
|
|
|
|
// isEmptyValue checks whether value empty or not
|
|
func isEmptyValue(v reflect.Value) bool {
|
|
switch v.Kind() {
|
|
case reflect.String, reflect.Array:
|
|
return v.Len() == 0
|
|
case reflect.Map, reflect.Slice:
|
|
return v.Len() == 0 || v.IsNil()
|
|
case reflect.Bool:
|
|
return !v.Bool()
|
|
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
|
return v.Int() == 0
|
|
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
|
return v.Uint() == 0
|
|
case reflect.Float32, reflect.Float64:
|
|
return v.Float() == 0
|
|
case reflect.Interface, reflect.Ptr:
|
|
return v.IsNil()
|
|
}
|
|
|
|
return reflect.DeepEqual(v.Interface(), reflect.Zero(v.Type()).Interface())
|
|
}
|
|
|
|
// ErrorByField returns error for specified field of the struct
|
|
// validated by ValidateStruct or empty string if there are no errors
|
|
// or this field doesn't exists or doesn't have any errors.
|
|
func ErrorByField(e error, field string) string {
|
|
if e == nil {
|
|
return ""
|
|
}
|
|
return ErrorsByField(e)[field]
|
|
}
|
|
|
|
// ErrorsByField returns map of errors of the struct validated
|
|
// by ValidateStruct or empty map if there are no errors.
|
|
func ErrorsByField(e error) map[string]string {
|
|
m := make(map[string]string)
|
|
if e == nil {
|
|
return m
|
|
}
|
|
// prototype for ValidateStruct
|
|
|
|
switch e := e.(type) {
|
|
case Error:
|
|
m[e.Name] = e.Err.Error()
|
|
case Errors:
|
|
for _, item := range e.Errors() {
|
|
n := ErrorsByField(item)
|
|
for k, v := range n {
|
|
m[k] = v
|
|
}
|
|
}
|
|
}
|
|
|
|
return m
|
|
}
|
|
|
|
// Error returns string equivalent for reflect.Type
|
|
func (e *UnsupportedTypeError) Error() string {
|
|
return "validator: unsupported type: " + e.Type.String()
|
|
}
|
|
|
|
func (sv stringValues) Len() int { return len(sv) }
|
|
func (sv stringValues) Swap(i, j int) { sv[i], sv[j] = sv[j], sv[i] }
|
|
func (sv stringValues) Less(i, j int) bool { return sv.get(i) < sv.get(j) }
|
|
func (sv stringValues) get(i int) string { return sv[i].String() }
|