Allow options to disable user gpg keys configuration from the interface on app.ini (#29486)

Follow #29447
Fix #29454
Extract from #20549

(cherry picked from commit 9de5e39e25009bacc5ca201ed97e9cbb623e56e9)

Conflicts:
	custom/conf/app.example.ini
	docs/content/administration/config-cheat-sheet.en-us.md
	docs/content/administration/config-cheat-sheet.zh-cn.md
	trivial context conflict

custom/conf/app.example.ini

@@ -1496,10 +1496,11 @@ LEVEL = Info
 ;;
 ;; Default configuration for email notifications for users (user configurable). Options: enabled, onmention, disabled
 ;DEFAULT_EMAIL_NOTIFICATIONS = enabled
-;; Send an email to all admins when a new user signs up to inform the admins about this act. Options: true, false
+;; Disabled features for users, could be "deletion","manage_gpg_keys" more features can be disabled in future
 ;SEND_NOTIFICATION_EMAIL_ON_NEW_USER = false
 ;; Disabled features for users, could be "deletion", more features can be disabled in future
 ;; - deletion: a user cannot delete their own account
+;; - manage_gpg_keys: a user cannot configure gpg keys
 ;USER_DISABLED_FEATURES =
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

docs/content/administration/config-cheat-sheet.en-us.md

@@ -518,7 +518,9 @@ And the following unique queues:
 
 - `DEFAULT_EMAIL_NOTIFICATIONS`: **enabled**: Default configuration for email notifications for users (user configurable). Options: enabled, onmention, disabled
 - `DISABLE_REGULAR_ORG_CREATION`: **false**: Disallow regular (non-admin) users from creating organizations.
-- `SEND_NOTIFICATION_EMAIL_ON_NEW_USER`: **false**: Send an email to all admins when a new user signs up to inform the admins about this act.
+- `USER_DISABLED_FEATURES`: **_empty_** Disabled features for users, could be `deletion`, `manage_gpg_keys` and more features can be added in future.
+  - `deletion`: User cannot delete their own account.
+  - `manage_gpg_keys`: User cannot configure gpg keys
 
 ## Security (`security`)
 

docs/content/administration/config-cheat-sheet.zh-cn.md

@@ -497,6 +497,9 @@ Gitea 创建以下非唯一队列：
 
 - `DEFAULT_EMAIL_NOTIFICATIONS`: **enabled**：用户电子邮件通知的默认配置（用户可配置）。选项：enabled、onmention、disabled
 - `DISABLE_REGULAR_ORG_CREATION`: **false**：禁止普通（非管理员）用户创建组织。
+- `USER_DISABLED_FEATURES`:**_empty_** 禁用的用户特性，当前允许为空或者 `deletion`，`manage_gpg_keys` 未来可以增加更多设置。
+  - `deletion`: 用户不能通过界面或者API删除他自己。
+  - `manage_gpg_keys`: 用户不能配置 GPG 密钥
 
 ## 安全性 (`security`)
 

modules/setting/admin.go

@@ -21,5 +21,6 @@ func loadAdminFrom(rootCfg ConfigProvider) {
 }
 
 const (
-	UserFeatureDeletion = "deletion"
+	UserFeatureDeletion      = "deletion"
+	UserFeatureManageGPGKeys = "manage_gpg_keys"
 )

routers/api/v1/user/gpg_key.go

@@ -10,6 +10,7 @@ import (
 
 	asymkey_model "code.gitea.io/gitea/models/asymkey"
 	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/setting"
 	api "code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/modules/web"
 	"code.gitea.io/gitea/routers/api/v1/utils"
@@ -132,6 +133,11 @@ func GetGPGKey(ctx *context.APIContext) {
 
 // CreateUserGPGKey creates new GPG key to given user by ID.
 func CreateUserGPGKey(ctx *context.APIContext, form api.CreateGPGKeyOption, uid int64) {
+	if setting.Admin.UserDisabledFeatures.Contains(setting.UserFeatureManageGPGKeys) {
+		ctx.NotFound("Not Found", fmt.Errorf("gpg keys setting is not allowed to be visited"))
+		return
+	}
+
 	token := asymkey_model.VerificationToken(ctx.Doer, 1)
 	lastToken := asymkey_model.VerificationToken(ctx.Doer, 0)
 
@@ -268,6 +274,11 @@ func DeleteGPGKey(ctx *context.APIContext) {
 	//   "404":
 	//     "$ref": "#/responses/notFound"
 
+	if setting.Admin.UserDisabledFeatures.Contains(setting.UserFeatureManageGPGKeys) {
+		ctx.NotFound("Not Found", fmt.Errorf("gpg keys setting is not allowed to be visited"))
+		return
+	}
+
 	if err := asymkey_model.DeleteGPGKey(ctx, ctx.Doer, ctx.ParamsInt64(":id")); err != nil {
 		if asymkey_model.IsErrGPGKeyAccessDenied(err) {
 			ctx.Error(http.StatusForbidden, "", "You do not have access to this key")

routers/web/user/setting/keys.go

@@ -5,6 +5,7 @@
 package setting
 
 import (
+	"fmt"
 	"net/http"
 
 	asymkey_model "code.gitea.io/gitea/models/asymkey"
@@ -77,6 +78,11 @@ func KeysPost(ctx *context.Context) {
 		ctx.Flash.Success(ctx.Tr("settings.add_principal_success", form.Content))
 		ctx.Redirect(setting.AppSubURL + "/user/settings/keys")
 	case "gpg":
+		if setting.Admin.UserDisabledFeatures.Contains(setting.UserFeatureManageGPGKeys) {
+			ctx.NotFound("Not Found", fmt.Errorf("gpg keys setting is not allowed to be visited"))
+			return
+		}
+
 		token := asymkey_model.VerificationToken(ctx.Doer, 1)
 		lastToken := asymkey_model.VerificationToken(ctx.Doer, 0)
 
@@ -224,6 +230,10 @@ func KeysPost(ctx *context.Context) {
 func DeleteKey(ctx *context.Context) {
 	switch ctx.FormString("type") {
 	case "gpg":
+		if setting.Admin.UserDisabledFeatures.Contains(setting.UserFeatureManageGPGKeys) {
+			ctx.NotFound("Not Found", fmt.Errorf("gpg keys setting is not allowed to be visited"))
+			return
+		}
 		if err := asymkey_model.DeleteGPGKey(ctx, ctx.Doer, ctx.FormInt64("id")); err != nil {
 			ctx.Flash.Error("DeleteGPGKey: " + err.Error())
 		} else {

templates/user/settings/keys.tmpl

@@ -2,6 +2,8 @@
 	<div class="user-setting-content">
 		{{template "user/settings/keys_ssh" .}}
 		{{template "user/settings/keys_principal" .}}
+		{{if not ($.UserDisabledFeatures.Contains "manage_gpg_keys")}}
 		{{template "user/settings/keys_gpg" .}}
+		{{end}}
 	</div>
 {{template "user/settings/layout_footer" .}}