修复了 Worker 脚本中的问题。

install-ssh-worker/src/index.js

@@ -5,7 +5,7 @@ const githubInstSshProjectName = "quickly-conf-sshd";
 const baseUrl = `https://${githubUserName.toLowerCase()}.github.io/${githubInstSshProjectName}/`;
 const installScriptUrl = `${baseUrl}/conf-sshd.sh`;
 // 如果出现 Github 无法使用的情况, 可以修改 sshKeyUrl 来变更位置.
-const sshKeyUrl = `https://github.com/${githubUserName}.keys`;
+const sshKeyUrls = [`https://github.com/${githubUserName}.keys`];
 // 建议在此设置备用的 SSH 公钥, 以防 Github 无法使用.
 const backupSshKeys = ``;
 
@@ -17,9 +17,19 @@ export default {
   async fetch(request, env) {
     const { pathname } = new URL(request.url);
     if (pathname === "/ssh.keys") {
-      let response = await fetch(new Request(sshKeyUrl));
-      if (response.ok) {
-        return new Response(response.text(), {
+      for (let url of sshKeyUrls) {
+        let response = await fetch(new Request(url));
+        if (response.ok) {
+          let keys = await response.text()
+          return new Response(keys, {
+            headers: {
+              "content-type": "text/plain; charset=utf-8"
+            }
+          });
+        }
+      }
+      if (backupSshKeys.length > 0) {
+        return new Response(backupSshKeys, {
           headers: {
             "content-type": "text/plain; charset=utf-8"
           }
@@ -35,14 +45,24 @@ export default {
       }
     } else if (pathname === "/") {
       const userAgent = getUserAgent(request);
-      if (userAgent.match(/curl|libcurl/) !== null) {
-        return new Response("", {
-          status: 301,
-          statusText: "Redirect",
-          headers: {
-            "Location": installScriptUrl
-          }
-        });
+      if (userAgent != null && userAgent.match(/curl|libcurl/) !== null) {
+        let scriptResp = await fetch(new Request(installScriptUrl));
+        if (scriptResp.ok) {
+          let scriptContent = await scriptResp.text();
+          return new Response(scriptContent, {
+            headers: {
+              "content-type": "text/plain; charset=utf-8"
+            }
+          });
+        } else {
+          return new Response("Failed to get install script.", {
+            status: 500,
+            statusText: "Failed to get install script",
+            headers: {
+              "content-type": "text/plain; charset=utf-8"
+            }
+          });
+        }
       } else {
         return new Response("", {
           status: 301,