fix: Fixed the issue that WebDAV synchronization could not check the status and failed during the first backup

app/api/webdav/[...path]/route.ts

@@ -29,6 +29,7 @@ async function handle(
 
   const requestUrl = new URL(req.url);
   let endpoint = requestUrl.searchParams.get("endpoint");
+  let proxy_method = requestUrl.searchParams.get("proxy_method") || req.method;
 
   // Validate the endpoint to prevent potential SSRF attacks
   if (
@@ -65,7 +66,11 @@ async function handle(
   const targetPath = `${endpoint}${endpointPath}`;
 
   // only allow MKCOL, GET, PUT
-  if (req.method !== "MKCOL" && req.method !== "GET" && req.method !== "PUT") {
+  if (
+    proxy_method !== "MKCOL" &&
+    proxy_method !== "GET" &&
+    proxy_method !== "PUT"
+  ) {
     return NextResponse.json(
       {
         error: true,
@@ -78,7 +83,7 @@ async function handle(
   }
 
   // for MKCOL request, only allow request ${folder}
-  if (req.method === "MKCOL" && !targetPath.endsWith(folder)) {
+  if (proxy_method === "MKCOL" && !targetPath.endsWith(folder)) {
     return NextResponse.json(
       {
         error: true,
@@ -91,7 +96,7 @@ async function handle(
   }
 
   // for GET request, only allow request ending with fileName
-  if (req.method === "GET" && !targetPath.endsWith(fileName)) {
+  if (proxy_method === "GET" && !targetPath.endsWith(fileName)) {
     return NextResponse.json(
       {
         error: true,
@@ -104,7 +109,7 @@ async function handle(
   }
 
   //   for PUT request, only allow request ending with fileName
-  if (req.method === "PUT" && !targetPath.endsWith(fileName)) {
+  if (proxy_method === "PUT" && !targetPath.endsWith(fileName)) {
     return NextResponse.json(
       {
         error: true,
@@ -118,7 +123,7 @@ async function handle(
 
   const targetUrl = targetPath;
 
-  const method = req.method;
+  const method = proxy_method || req.method;
   const shouldNotHaveBody = ["get", "head"].includes(
     method?.toLowerCase() ?? "",
   );
@@ -143,7 +148,7 @@ async function handle(
       "[Any Proxy]",
       targetUrl,
       {
-        method: req.method,
+        method: method,
       },
       {
         status: fetchResult?.status,

app/utils/cloud/webdav.ts

@@ -14,8 +14,8 @@ export function createWebDavClient(store: SyncStore) {
   return {
     async check() {
       try {
-        const res = await fetch(this.path(folder, proxyUrl), {
-          method: "MKCOL",
+        const res = await fetch(this.path(folder, proxyUrl, "MKCOL"), {
+          method: "GET",
           headers: this.headers(),
         });
         const success = [201, 200, 404, 405, 301, 302, 307, 308].includes(
@@ -42,6 +42,10 @@ export function createWebDavClient(store: SyncStore) {
 
       console.log("[WebDav] get key = ", key, res.status, res.statusText);
 
+      if (404 == res.status) {
+        return "";
+      }
+
       return await res.text();
     },
 
@@ -62,7 +66,7 @@ export function createWebDavClient(store: SyncStore) {
         authorization: `Basic ${auth}`,
       };
     },
-    path(path: string, proxyUrl: string = "") {
+    path(path: string, proxyUrl: string = "", proxyMethod: string = "") {
       if (path.startsWith("/")) {
         path = path.slice(1);
       }
@@ -78,9 +82,13 @@ export function createWebDavClient(store: SyncStore) {
         let u = new URL(proxyUrl + pathPrefix + path);
         // add query params
         u.searchParams.append("endpoint", config.endpoint);
+        proxyMethod && u.searchParams.append("proxy_method", proxyMethod);
         url = u.toString();
       } catch (e) {
         url = pathPrefix + path + "?endpoint=" + config.endpoint;
+        if (proxyMethod) {
+          url += "&proxy_method=" + proxyMethod;
+        }
       }
 
       return url;