diff --git a/custom/conf/app.example.ini b/custom/conf/app.example.ini
index 852c59c92e..aee2e9fb7d 100644
--- a/custom/conf/app.example.ini
+++ b/custom/conf/app.example.ini
@@ -801,6 +801,11 @@ LEVEL = Info
;; Every new user will have restricted permissions depending on this setting
;DEFAULT_USER_IS_RESTRICTED = false
;;
+;; Users will be able to use dots when choosing their username. Disabling this is
+;; helpful if your usersare having issues with e.g. RSS feeds or advanced third-party
+;; extensions that use strange regex patterns.
+; ALLOW_DOTS_IN_USERNAMES = true
+;;
;; Either "public", "limited" or "private", default is "public"
;; Limited is for users visible only to signed users
;; Private is for users visible only to members of their organizations
diff --git a/modules/setting/service.go b/modules/setting/service.go
index f1b415ef70..f20943aec2 100644
--- a/modules/setting/service.go
+++ b/modules/setting/service.go
@@ -67,6 +67,7 @@ var Service = struct {
DefaultKeepEmailPrivate bool
DefaultAllowCreateOrganization bool
DefaultUserIsRestricted bool
+ AllowDotsInUsernames bool
EnableTimetracking bool
DefaultEnableTimetracking bool
DefaultEnableDependencies bool
@@ -178,6 +179,7 @@ func loadServiceFrom(rootCfg ConfigProvider) {
Service.DefaultKeepEmailPrivate = sec.Key("DEFAULT_KEEP_EMAIL_PRIVATE").MustBool()
Service.DefaultAllowCreateOrganization = sec.Key("DEFAULT_ALLOW_CREATE_ORGANIZATION").MustBool(true)
Service.DefaultUserIsRestricted = sec.Key("DEFAULT_USER_IS_RESTRICTED").MustBool(false)
+ Service.AllowDotsInUsernames = sec.Key("ALLOW_DOTS_IN_USERNAMES").MustBool(true)
Service.EnableTimetracking = sec.Key("ENABLE_TIMETRACKING").MustBool(true)
if Service.EnableTimetracking {
Service.DefaultEnableTimetracking = sec.Key("DEFAULT_ENABLE_TIMETRACKING").MustBool(true)
diff --git a/modules/validation/helpers.go b/modules/validation/helpers.go
index 3381846b86..2f88fcbc60 100644
--- a/modules/validation/helpers.go
+++ b/modules/validation/helpers.go
@@ -92,13 +92,20 @@ func IsValidExternalTrackerURLFormat(uri string) bool {
}
var (
- validUsernamePattern = regexp.MustCompile(`^[\da-zA-Z][-.\w]*$`)
- invalidUsernamePattern = regexp.MustCompile(`[-._]{2,}|[-._]$`) // No consecutive or trailing non-alphanumeric chars
+ validUsernamePatternWithDots = regexp.MustCompile(`^[\da-zA-Z][-.\w]*$`)
+ validUsernamePatternWithoutDots = regexp.MustCompile(`^[\da-zA-Z][-\w]*$`)
+
+ // No consecutive or trailing non-alphanumeric chars, catches both cases
+ invalidUsernamePattern = regexp.MustCompile(`[-._]{2,}|[-._]$`)
)
// IsValidUsername checks if username is valid
func IsValidUsername(name string) bool {
// It is difficult to find a single pattern that is both readable and effective,
// but it's easier to use positive and negative checks.
- return validUsernamePattern.MatchString(name) && !invalidUsernamePattern.MatchString(name)
+ if setting.Service.AllowDotsInUsernames {
+ return validUsernamePatternWithDots.MatchString(name) && !invalidUsernamePattern.MatchString(name)
+ }
+
+ return validUsernamePatternWithoutDots.MatchString(name) && !invalidUsernamePattern.MatchString(name)
}
diff --git a/modules/validation/helpers_test.go b/modules/validation/helpers_test.go
index 52f383f698..a1bdf2a29c 100644
--- a/modules/validation/helpers_test.go
+++ b/modules/validation/helpers_test.go
@@ -155,7 +155,8 @@ func Test_IsValidExternalTrackerURLFormat(t *testing.T) {
}
}
-func TestIsValidUsername(t *testing.T) {
+func TestIsValidUsernameAllowDots(t *testing.T) {
+ setting.Service.AllowDotsInUsernames = true
tests := []struct {
arg string
want bool
@@ -185,3 +186,31 @@ func TestIsValidUsername(t *testing.T) {
})
}
}
+
+func TestIsValidUsernameBanDots(t *testing.T) {
+ setting.Service.AllowDotsInUsernames = false
+ defer func() {
+ setting.Service.AllowDotsInUsernames = true
+ }()
+
+ tests := []struct {
+ arg string
+ want bool
+ }{
+ {arg: "a", want: true},
+ {arg: "abc", want: true},
+ {arg: "0.b-c", want: false},
+ {arg: "a.b-c_d", want: false},
+ {arg: ".abc", want: false},
+ {arg: "abc.", want: false},
+ {arg: "a..bc", want: false},
+ {arg: "a...bc", want: false},
+ {arg: "a.-bc", want: false},
+ {arg: "a._bc", want: false},
+ }
+ for _, tt := range tests {
+ t.Run(tt.arg, func(t *testing.T) {
+ assert.Equalf(t, tt.want, IsValidUsername(tt.arg), "IsValidUsername[AllowDotsInUsernames=false](%v)", tt.arg)
+ })
+ }
+}
diff --git a/modules/web/middleware/binding.go b/modules/web/middleware/binding.go
index d9bcdf3b2a..4e7fca80e2 100644
--- a/modules/web/middleware/binding.go
+++ b/modules/web/middleware/binding.go
@@ -8,6 +8,7 @@ import (
"reflect"
"strings"
+ "code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/translation"
"code.gitea.io/gitea/modules/util"
"code.gitea.io/gitea/modules/validation"
@@ -135,7 +136,11 @@ func Validate(errs binding.Errors, data map[string]any, f Form, l translation.Lo
case validation.ErrRegexPattern:
data["ErrorMsg"] = trName + l.Tr("form.regex_pattern_error", errs[0].Message)
case validation.ErrUsername:
- data["ErrorMsg"] = trName + l.Tr("form.username_error")
+ if setting.Service.AllowDotsInUsernames {
+ data["ErrorMsg"] = trName + l.Tr("form.username_error")
+ } else {
+ data["ErrorMsg"] = trName + l.Tr("form.username_error_no_dots")
+ }
case validation.ErrInvalidGroupTeamMap:
data["ErrorMsg"] = trName + l.Tr("form.invalid_group_team_map_error", errs[0].Message)
default:
diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini
index 64bc0c7cc1..13981d7c31 100644
--- a/options/locale/locale_en-US.ini
+++ b/options/locale/locale_en-US.ini
@@ -290,6 +290,7 @@ default_allow_create_organization = Allow Creation of Organizations by Default
default_allow_create_organization_popup = Allow new user accounts to create organizations by default.
default_enable_timetracking = Enable Time Tracking by Default
default_enable_timetracking_popup = Enable time tracking for new repositories by default.
+allow_dots_in_usernames = Allow users to use dots in their usernames. Doesn't affect existing accounts.
no_reply_address = Hidden Email Domain
no_reply_address_helper = Domain name for users with a hidden email address. For example, the username 'joe' will be logged in Git as 'joe@noreply.example.org' if the hidden email domain is set to 'noreply.example.org'.
password_algorithm = Password Hash Algorithm
@@ -528,6 +529,7 @@ include_error = ` must contain substring "%s".`
glob_pattern_error = ` glob pattern is invalid: %s.`
regex_pattern_error = ` regex pattern is invalid: %s.`
username_error = ` can only contain alphanumeric chars ('0-9','a-z','A-Z'), dash ('-'), underscore ('_') and dot ('.'). It cannot begin or end with non-alphanumeric chars, and consecutive non-alphanumeric chars are also forbidden.`
+username_error_no_dots = ` can only contain alphanumeric chars ('0-9','a-z','A-Z'), dash ('-') and underscore ('_'). It cannot begin or end with non-alphanumeric chars, and consecutive non-alphanumeric chars are also forbidden.`
invalid_group_team_map_error = ` mapping is invalid: %s`
unknown_error = Unknown error:
captcha_incorrect = The CAPTCHA code is incorrect.
diff --git a/templates/admin/config.tmpl b/templates/admin/config.tmpl
index 36d9bcb8a5..6947ecfe8e 100644
--- a/templates/admin/config.tmpl
+++ b/templates/admin/config.tmpl
@@ -159,6 +159,8 @@
{{if .Service.DefaultKeepEmailPrivate}}{{svg "octicon-check"}}{{else}}{{svg "octicon-x"}}{{end}}
{{.locale.Tr "admin.config.default_allow_create_organization"}}
{{if .Service.DefaultAllowCreateOrganization}}{{svg "octicon-check"}}{{else}}{{svg "octicon-x"}}{{end}}
+ {{.locale.Tr "admin.config.allow_dots_in_usernames"}}
+ {{if .Service.AllowDotsInUsernames}}{{svg "octicon-check"}}{{else}}{{svg "octicon-x"}}{{end}}
{{.locale.Tr "admin.config.enable_timetracking"}}
{{if .Service.EnableTimetracking}}{{svg "octicon-check"}}{{else}}{{svg "octicon-x"}}{{end}}
{{if .Service.EnableTimetracking}}