This commit is contained in:
@@ -8,9 +8,9 @@ import (
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"reflect"
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"strings"
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"code.gitea.io/gitea/modules/translation"
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"code.gitea.io/gitea/modules/util"
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"code.gitea.io/gitea/modules/validation"
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"gitea.dev/modules/translation"
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"gitea.dev/modules/util"
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"gitea.dev/modules/validation"
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"gitea.com/go-chi/binding"
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)
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@@ -29,7 +29,7 @@ func AssignForm(form any, data map[string]any) {
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typ := reflect.TypeOf(form)
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val := reflect.ValueOf(form)
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for typ.Kind() == reflect.Ptr {
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for typ.Kind() == reflect.Pointer {
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typ = typ.Elem()
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val = val.Elem()
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}
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@@ -78,82 +78,97 @@ func GetInclude(field reflect.StructField) string {
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return getRuleBody(field, "Include(")
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}
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// Validate validate
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func ReportValidationError(errs binding.Errors, data map[string]any, fieldName, classification, errorMsg string) binding.Errors {
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errs.Add([]string{fieldName}, classification, errorMsg)
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data["HasError"] = true
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data["ErrorMsg"] = fieldName + ": " + errorMsg
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data["Err_"+fieldName] = true
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// there is already a reported validation error, so no need to generate default error messages in Validate()
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data["HasErrorFormValidation"] = true
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return errs
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}
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func Validate(errs binding.Errors, data map[string]any, f Form, l translation.Locale) binding.Errors {
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if errs.Len() == 0 {
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// try to restore the form's values as much as possible,
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// especially for RenderWithErrDeprecated to re-render the form with errors
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AssignForm(f, data)
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if errs.Len() == 0 || data["HasErrorFormValidation"] == true {
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return errs
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}
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// if HasError=true, then must set default error message
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// because still a lot of places use `ctx.Data["ErrorMsg"].(string)` even if the error fields can't be found
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data["HasError"] = true
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// If the field with name errs[0].FieldNames[0] is not found in form
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// somehow, some code later on will panic on Data["ErrorMsg"].(string).
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// So initialize it to some default.
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data["ErrorMsg"] = l.Tr("form.unknown_error")
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AssignForm(f, data)
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data["ErrorMsg"] = l.TrString("form.unknown_error")
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typ := reflect.TypeOf(f)
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if typ.Kind() == reflect.Ptr {
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if typ.Kind() == reflect.Pointer {
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typ = typ.Elem()
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}
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if field, ok := typ.FieldByName(errs[0].FieldNames[0]); ok {
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fieldName := field.Tag.Get("form")
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if fieldName != "-" {
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data["Err_"+field.Name] = true
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trName := field.Tag.Get("locale")
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if len(trName) == 0 {
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trName = l.TrString("form." + field.Name)
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} else {
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trName = l.TrString(trName)
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}
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switch errs[0].Classification {
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case binding.ERR_REQUIRED:
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data["ErrorMsg"] = trName + l.TrString("form.require_error")
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case binding.ERR_ALPHA_DASH:
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data["ErrorMsg"] = trName + l.TrString("form.alpha_dash_error")
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case binding.ERR_ALPHA_DASH_DOT:
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data["ErrorMsg"] = trName + l.TrString("form.alpha_dash_dot_error")
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case validation.ErrGitRefName:
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data["ErrorMsg"] = trName + l.TrString("form.git_ref_name_error")
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case binding.ERR_SIZE:
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data["ErrorMsg"] = trName + l.TrString("form.size_error", GetSize(field))
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case binding.ERR_MIN_SIZE:
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data["ErrorMsg"] = trName + l.TrString("form.min_size_error", GetMinSize(field))
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case binding.ERR_MAX_SIZE:
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data["ErrorMsg"] = trName + l.TrString("form.max_size_error", GetMaxSize(field))
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case binding.ERR_EMAIL:
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data["ErrorMsg"] = trName + l.TrString("form.email_error")
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case binding.ERR_URL:
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data["ErrorMsg"] = trName + l.TrString("form.url_error", errs[0].Message)
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case binding.ERR_INCLUDE:
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data["ErrorMsg"] = trName + l.TrString("form.include_error", GetInclude(field))
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case validation.ErrGlobPattern:
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data["ErrorMsg"] = trName + l.TrString("form.glob_pattern_error", errs[0].Message)
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case validation.ErrRegexPattern:
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data["ErrorMsg"] = trName + l.TrString("form.regex_pattern_error", errs[0].Message)
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case validation.ErrUsername:
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data["ErrorMsg"] = trName + l.TrString("form.username_error")
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case validation.ErrInvalidGroupTeamMap:
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data["ErrorMsg"] = trName + l.TrString("form.invalid_group_team_map_error", errs[0].Message)
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case validation.ErrInvalidBadgeSlug:
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data["ErrorMsg"] = trName + l.TrString("form.invalid_slug_error")
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default:
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msg := errs[0].Classification
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if msg != "" && errs[0].Message != "" {
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msg += ": "
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}
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msg += errs[0].Message
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if msg == "" {
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msg = l.TrString("form.unknown_error")
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}
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data["ErrorMsg"] = trName + ": " + msg
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}
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return errs
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}
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field, fieldExists := typ.FieldByName(errs[0].FieldNames[0])
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if !fieldExists {
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return errs
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}
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if field.Tag.Get("form") == "-" {
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return errs
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}
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data["Err_"+field.Name] = true
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trName := field.Tag.Get("locale")
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if len(trName) == 0 {
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trName = l.TrString("form." + field.Name)
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} else {
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trName = l.TrString(trName)
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}
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switch errs[0].Classification {
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case binding.ERR_REQUIRED:
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data["ErrorMsg"] = trName + l.TrString("form.require_error")
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case binding.ERR_ALPHA_DASH:
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data["ErrorMsg"] = trName + l.TrString("form.alpha_dash_error")
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case binding.ERR_ALPHA_DASH_DOT:
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data["ErrorMsg"] = trName + l.TrString("form.alpha_dash_dot_error")
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case validation.ErrGitRefName:
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data["ErrorMsg"] = trName + l.TrString("form.git_ref_name_error")
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case binding.ERR_SIZE:
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data["ErrorMsg"] = trName + l.TrString("form.size_error", GetSize(field))
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case binding.ERR_MIN_SIZE:
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data["ErrorMsg"] = trName + l.TrString("form.min_size_error", GetMinSize(field))
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case binding.ERR_MAX_SIZE:
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data["ErrorMsg"] = trName + l.TrString("form.max_size_error", GetMaxSize(field))
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case binding.ERR_EMAIL:
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data["ErrorMsg"] = trName + l.TrString("form.email_error")
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case binding.ERR_URL:
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data["ErrorMsg"] = trName + l.TrString("form.url_error", errs[0].Message)
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case binding.ERR_INCLUDE:
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data["ErrorMsg"] = trName + l.TrString("form.include_error", GetInclude(field))
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case validation.ErrGlobPattern:
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data["ErrorMsg"] = trName + l.TrString("form.glob_pattern_error", errs[0].Message)
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case validation.ErrRegexPattern:
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data["ErrorMsg"] = trName + l.TrString("form.regex_pattern_error", errs[0].Message)
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case validation.ErrUsername:
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data["ErrorMsg"] = trName + l.TrString("form.username_error")
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case validation.ErrInvalidGroupTeamMap:
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data["ErrorMsg"] = trName + l.TrString("form.invalid_group_team_map_error", errs[0].Message)
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case validation.ErrInvalidBadgeSlug:
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data["ErrorMsg"] = trName + l.TrString("form.invalid_slug_error")
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default:
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msg := errs[0].Classification
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if msg != "" && errs[0].Message != "" {
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msg += ": "
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}
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msg += errs[0].Message
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if msg == "" {
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msg = l.TrString("form.unknown_error")
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}
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data["ErrorMsg"] = trName + ": " + msg
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}
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return errs
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}
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@@ -9,9 +9,9 @@ import (
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"net/url"
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"strings"
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"code.gitea.io/gitea/modules/session"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/util"
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"gitea.dev/modules/session"
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"gitea.dev/modules/setting"
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"gitea.dev/modules/util"
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)
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const (
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@@ -35,6 +35,11 @@ func DeleteRedirectToCookie(resp http.ResponseWriter) {
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}
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func RedirectLinkUserLogin(req *http.Request) string {
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if req.Header.Get("X-Gitea-Fetch-Action") != "" {
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// when building the redirect link for a fetch request, the current link might be a partial page,
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// so we only redirect to the login page without redirect_to parameter
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return setting.AppSubURL + "/user/login"
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}
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return setting.AppSubURL + "/user/login?redirect_to=" + url.QueryEscape(setting.AppSubURL+req.URL.RequestURI())
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}
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@@ -7,9 +7,9 @@ import (
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"context"
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"time"
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"code.gitea.io/gitea/modules/public"
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"code.gitea.io/gitea/modules/reqctx"
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"code.gitea.io/gitea/modules/setting"
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"gitea.dev/modules/public"
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"gitea.dev/modules/reqctx"
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"gitea.dev/modules/setting"
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)
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const ContextDataKeySignedUser = "SignedUser"
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@@ -9,7 +9,7 @@ import (
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"net/http"
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"net/url"
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"code.gitea.io/gitea/modules/reqctx"
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"gitea.dev/modules/reqctx"
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)
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// Flash represents a one time data transfer between two requests.
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@@ -6,12 +6,30 @@ package middleware
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import (
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"net/http"
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"code.gitea.io/gitea/modules/translation"
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"code.gitea.io/gitea/modules/translation/i18n"
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"gitea.dev/modules/translation"
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"gitea.dev/modules/translation/i18n"
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"golang.org/x/text/language"
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)
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// maxAcceptLanguageLen bounds the Accept-Language header before it reaches
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// language.ParseAcceptLanguage. That parser has quadratic-time behavior on long
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// malformed inputs, and its built-in guard only counts "-" separators while the
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// scanner treats "_" as an alias for "-", so a "_"-heavy header slips past the
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// guard and burns CPU. Only the leading (highest-priority) languages are used, so
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// truncating a longer header is safe.
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const maxAcceptLanguageLen = 200
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// parseAcceptLanguage parses the Accept-Language header after bounding its length
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// to avoid a quadratic-time DoS on attacker-controlled input.
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func parseAcceptLanguage(header string) []language.Tag {
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if len(header) > maxAcceptLanguageLen {
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header = header[:maxAcceptLanguageLen]
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}
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tags, _, _ := language.ParseAcceptLanguage(header)
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return tags
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}
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// Locale handle locale
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func Locale(resp http.ResponseWriter, req *http.Request) translation.Locale {
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// 1. Check URL arguments.
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@@ -35,7 +53,7 @@ func Locale(resp http.ResponseWriter, req *http.Request) translation.Locale {
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// 3. Get language information from 'Accept-Language'.
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// The first element in the list is chosen to be the default language automatically.
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if len(lang) == 0 {
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tags, _, _ := language.ParseAcceptLanguage(req.Header.Get("Accept-Language"))
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tags := parseAcceptLanguage(req.Header.Get("Accept-Language"))
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tag := translation.Match(tags...)
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lang = tag.String()
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}
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@@ -51,9 +69,3 @@ func Locale(resp http.ResponseWriter, req *http.Request) translation.Locale {
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func SetLocaleCookie(resp http.ResponseWriter, lang string, maxAge int) {
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SetSiteCookie(resp, "lang", lang, maxAge)
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}
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// DeleteLocaleCookie convenience function to delete the locale cookie consistently
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// Setting the lang cookie will trigger the middleware to reset the language to previous state.
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func DeleteLocaleCookie(resp http.ResponseWriter) {
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SetSiteCookie(resp, "lang", "", -1)
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}
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@@ -0,0 +1,27 @@
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// Copyright 2026 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package middleware
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import (
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"strings"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestParseAcceptLanguage(t *testing.T) {
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// a normal header is parsed and its leading language preserved
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tags := parseAcceptLanguage("de-DE,de;q=0.9,en;q=0.8")
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assert.NotEmpty(t, tags)
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assert.Equal(t, "de-DE", tags[0].String())
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// an oversized "_"-separated header would drive ParseAcceptLanguage into its
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// quadratic-time path (the built-in guard only counts "-"); the length bound
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// keeps the input passed to the parser small so it cannot be used for a DoS.
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malicious := strings.Repeat("_aaaaaaaaa", 1<<16) // ~640 KiB, zero "-" characters
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assert.Greater(t, len(malicious), maxAcceptLanguageLen)
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tags = parseAcceptLanguage(malicious)
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// no panic / hang, and nothing meaningful is parsed out of the garbage
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assert.Empty(t, tags)
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}
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