fix(plugin): authorization code redirect to static url (#191)

backend/domain/plugin/conf/host.go

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package conf
+
+import (
+	"os"
+	"strings"
+)
+
+func GetServerHost() string {
+	host := os.Getenv("SERVER_HOST")
+	if strings.HasPrefix(host, "http://") || strings.HasPrefix(host, "https://") {
+		return host
+	}
+	return "https://" + host
+}