1 files changed, 46 insertions, 0 deletions
diff --git a/sethandler.go b/sethandler.go
new file mode 100644
index 0000000..4022d5c
--- /dev/null
+++ b/sethandler.go
@@ -0,0 +1,46 @@
+/*
+ * HTTP handler setting
+ *
+ * Copyright (C) 2024  Runxi Yu <https://runxiyu.org>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package main
+
+import (
+	"net/http"
+)
+
+func setHandler(pattern string, handler func(http.ResponseWriter, *http.Request) (string, int, error)) {
+	http.HandleFunc(pattern, func(w http.ResponseWriter, req *http.Request) {
+		msg, statusCode, err := handler(w, req)
+		if err != nil {
+			if statusCode == -1 || statusCode == 0 {
+				statusCode = 500
+			}
+			if msg != "" {
+				wstr(w, statusCode, msg+"\n"+err.Error())
+			} else {
+				wstr(w, statusCode, err.Error())
+			}
+		} else {
+			if statusCode == -1 || statusCode == 0 {
+				statusCode = 200
+			}
+			wstr(w, statusCode, msg)
+		}
+	})
+}