Use padded keyid (#22288)

- Followup for #22231 to follow the frontport.

models/asymkey/gpg_key.go

@@ -65,11 +65,17 @@ func (key *GPGKey) AfterLoad(session *xorm.Session) {
 
 // PaddedKeyID show KeyID padded to 16 characters
 func (key *GPGKey) PaddedKeyID() string {
-	if len(key.KeyID) > 15 {
-		return key.KeyID
+	return PaddedKeyID(key.KeyID)
+}
+
+// PaddedKeyID show KeyID padded to 16 characters
+func PaddedKeyID(keyID string) string {
+	if len(keyID) > 15 {
+		return keyID
 	}
+
 	zeros := "0000000000000000"
-	return zeros[0:16-len(key.KeyID)] + key.KeyID
+	return zeros[0:16-len(keyID)] + keyID
 }
 
 // ListGPGKeys returns a list of public keys belongs to given user.

routers/web/user/setting/keys.go

@@ -100,14 +100,18 @@ func KeysPost(ctx *context.Context) {
 				loadKeysData(ctx)
 				ctx.Data["Err_Content"] = true
 				ctx.Data["Err_Signature"] = true
-				ctx.Data["KeyID"] = err.(asymkey_model.ErrGPGInvalidTokenSignature).ID
+				keyID := err.(asymkey_model.ErrGPGInvalidTokenSignature).ID
+				ctx.Data["KeyID"] = keyID
+				ctx.Data["PaddedKeyID"] = asymkey_model.PaddedKeyID(keyID)
 				ctx.RenderWithErr(ctx.Tr("settings.gpg_invalid_token_signature"), tplSettingsKeys, &form)
 			case asymkey_model.IsErrGPGNoEmailFound(err):
 				loadKeysData(ctx)
 
 				ctx.Data["Err_Content"] = true
 				ctx.Data["Err_Signature"] = true
-				ctx.Data["KeyID"] = err.(asymkey_model.ErrGPGNoEmailFound).ID
+				keyID := err.(asymkey_model.ErrGPGNoEmailFound).ID
+				ctx.Data["KeyID"] = keyID
+				ctx.Data["PaddedKeyID"] = asymkey_model.PaddedKeyID(keyID)
 				ctx.RenderWithErr(ctx.Tr("settings.gpg_no_key_email_found"), tplSettingsKeys, &form)
 			default:
 				ctx.ServerError("AddPublicKey", err)
@@ -139,7 +143,9 @@ func KeysPost(ctx *context.Context) {
 				loadKeysData(ctx)
 				ctx.Data["VerifyingID"] = form.KeyID
 				ctx.Data["Err_Signature"] = true
-				ctx.Data["KeyID"] = err.(asymkey_model.ErrGPGInvalidTokenSignature).ID
+				keyID := err.(asymkey_model.ErrGPGInvalidTokenSignature).ID
+				ctx.Data["KeyID"] = keyID
+				ctx.Data["PaddedKeyID"] = asymkey_model.PaddedKeyID(keyID)
 				ctx.RenderWithErr(ctx.Tr("settings.gpg_invalid_token_signature"), tplSettingsKeys, &form)
 			default:
 				ctx.ServerError("VerifyGPG", err)