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

2 files changed, 21 insertions, 0 deletions

diff --git a/routers/api/v1/user/gpg_key.go b/routers/api/v1/user/gpg_key.go
index b8438cd2aa..dcf5da0b2e 100644
--- a/routers/api/v1/user/gpg_key.go
+++ b/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")
diff --git a/routers/web/user/setting/keys.go b/routers/web/user/setting/keys.go
index 0a12777e5e..cb01913bda 100644
--- a/routers/web/user/setting/keys.go
+++ b/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 {