Switch app update source to GitHub Releases

Change app update flow to use GitHub Releases download URLs and simplify updater logic. README updated to show the new Releases URL format. main.js: replaced custom app update endpoints with a GitHub Releases template, removed HTTPS-based version discovery and related helpers (download/parsing/detection), simplified getAppUpdateUrl to build a direct Releases download link using app.getVersion(), adjusted platform extension mapping (default -> zip), and removed unused https import. IPC handlers now return/open the direct download URL only. preload.js / settings.*: removed exposure and UI elements that displayed remote latest-version details (getAppUpdateInfo, appVersionInfo, appUpdateAdvice) and updated settings.js to only show the computed download URL. This simplifies update behavior but removes automatic latest-version checks and the getAppUpdateInfo API; callers should use getAppUpdateUrl or rely on GitHub Releases tags.

Author: PythonSmall-Q

README.md

@@ -9,8 +9,8 @@
 - 每次启动可检查脚本更新
 - 正式版更新源：`https://xmoj-bbs.me/XMOJ.user.js`
 - 预览版更新源：`https://dev.xmoj-bbs.me/XMOJ.user.js`
-- App 下载更新源：`https://app.xmoj-bbs.me/{system}/{version}.{ext}`
-	- ext 会按系统自动适配：`Windows=exe, macOS=dmg, Linux=AppImage`
+- App 下载更新源：GitHub Releases `https://github.com/XMOJ-Script-dev/ELXMOJ/releases/download/v{version}/ELXMOJ-{version}.{ext}`
+	- ext 按平台自动适配：Windows `.exe` / macOS `.dmg` / Linux `.AppImage`
 - 发现新版本时弹窗提示用户是否更新
 - 设置持久化（通道、启动检查、自动注入）
 - 提供启动自检和手动自检

src/main.js

@@ -1,5 +1,4 @@
 const path = require("node:path");
-const https = require("node:https");
 const { app, BrowserWindow, dialog, ipcMain, Menu, net, session, shell } = require("electron");
 
 const {
@@ -43,9 +42,7 @@ let lastCheckResult = null;
 const LOCAL_SCRIPT_PATH = path.join(__dirname, "..", "XMOJ.user.js");
 const XMOJ_HOME = "https://www.xmoj.tech";
 const USER_SCRIPT_DEBUG_MODE_KEY = "UserScript-Setting-DebugMode";
-const APP_UPDATE_URL_TEMPLATE = "https://app.xmoj-bbs.me/{system}/{version}.{ext}";
-const APP_UPDATE_BASE_URL = "https://app.xmoj-bbs.me";
-const APP_RELEASES_API_URL = "https://api.github.com/repos/XMOJ-Script-dev/ELXMOJ/releases/latest";
+const APP_UPDATE_URL_TEMPLATE = "https://github.com/XMOJ-Script-dev/ELXMOJ/releases/download/v{version}/ELXMOJ-{version}.{ext}";
 const PRELOAD_PATH = path.join(__dirname, "preload.js");
 const APP_ICON_PATH = path.join(
   __dirname,
@@ -66,134 +63,36 @@ function getPlatformPackageExtension() {
   if (process.platform === "win32") return "exe";
   if (process.platform === "darwin") return "dmg";
   if (process.platform === "linux") return "AppImage";
-  return "bin";
+  return "zip";
 }
 
-function buildAppUpdateUrl(version) {
-  const normalizedVersion = String(version || app.getVersion()).trim();
-  const ext = getPlatformPackageExtension();
-  return APP_UPDATE_URL_TEMPLATE
-    .replace("{system}", getUpdateSystemName())
-    .replace("{version}", normalizedVersion)
-    .replace("{ext}", ext);
-}
-
-function getAppUpdateUrl() {
-  return buildAppUpdateUrl(app.getVersion());
-}
-
-function downloadTextWithHeaders(url, headers = {}) {
-  return new Promise((resolve, reject) => {
-    const req = https.get(
-      url,
-      {
-        timeout: 15000,
-        headers
-      },
-      (res) => {
-        if (res.statusCode !== 200) {
-          reject(new Error(`HTTP ${res.statusCode} while downloading ${url}`));
-          res.resume();
-          return;
-        }
-
-        const chunks = [];
-        res.on("data", (chunk) => chunks.push(chunk));
-        res.on("end", () => resolve(Buffer.concat(chunks).toString("utf8")));
-      }
-    );
-
-    req.on("timeout", () => {
-      req.destroy(new Error(`Timeout while downloading ${url}`));
-    });
-    req.on("error", reject);
-  });
-}
-
-function parseVersionFromLatestYml(ymlText) {
-  const match = String(ymlText || "").match(/^\s*version\s*:\s*["']?([^"'\s]+)["']?/m);
-  return match ? String(match[1]).trim() : "";
-}
-
-function normalizeReleaseVersionTag(value) {
-  const raw = String(value || "").trim();
-  return raw.replace(/^v/i, "");
-}
+function getVersionSuffix(version) {
+  const raw = String(version || "").trim();
+  const semverMatch = raw.match(/^\d+\.\d+\.\d+(?:-([0-9A-Za-z.-]+))?(?:\+[0-9A-Za-z.-]+)?$/);
+  const prerelease = semverMatch?.[1] || "";
 
-async function detectLatestVersionFromAppSource() {
-  const system = getUpdateSystemName();
-  const latestJsonUrl = `${APP_UPDATE_BASE_URL}/${system}/latest.json`;
-  const latestYmlUrl = `${APP_UPDATE_BASE_URL}/${system}/latest.yml`;
-
-  try {
-    const raw = await downloadText(latestJsonUrl);
-    const parsed = JSON.parse(raw);
-    const version = normalizeReleaseVersionTag(parsed?.version || parsed?.latest || parsed?.tag || "");
-    if (version) {
-      return { ok: true, version, source: latestJsonUrl };
-    }
-  } catch {
-    // fallback to yml below
-  }
-
-  try {
-    const raw = await downloadText(latestYmlUrl);
-    const version = normalizeReleaseVersionTag(parseVersionFromLatestYml(raw));
-    if (version) {
-      return { ok: true, version, source: latestYmlUrl };
-    }
-  } catch {
-    // fallback to GitHub release API below
+  if (!prerelease) {
+    return "release";
   }
 
-  return { ok: false, version: "", source: "" };
-}
+  const normalized = prerelease.toLowerCase();
+  if (normalized.startsWith("alpha")) return "alpha";
+  if (normalized.startsWith("beta")) return "beta";
+  if (normalized.startsWith("rc")) return "rc";
+  if (normalized.startsWith("dev")) return "dev";
+  if (normalized.startsWith("nightly")) return "nightly";
+  if (normalized.startsWith("canary")) return "canary";
 
-async function detectLatestVersionFromGitHub() {
-  try {
-    const raw = await downloadTextWithHeaders(APP_RELEASES_API_URL, {
-      "User-Agent": "ELXMOJ-App-Updater"
-    });
-    const parsed = JSON.parse(raw);
-    const version = normalizeReleaseVersionTag(parsed?.tag_name || parsed?.name || "");
-    if (!version) {
-      return { ok: false, version: "", source: APP_RELEASES_API_URL };
-    }
-    return { ok: true, version, source: APP_RELEASES_API_URL };
-  } catch {
-    return { ok: false, version: "", source: APP_RELEASES_API_URL };
-  }
+  // Fallback to prerelease tag itself when it is a custom identifier.
+  return normalized.replace(/[^a-z0-9.-]/g, "") || "preview";
 }
 
-async function getAppUpdateInfo() {
-  const currentVersion = app.getVersion();
-  let latest = await detectLatestVersionFromAppSource();
-
-  if (!latest.ok) {
-    latest = await detectLatestVersionFromGitHub();
-  }
-
-  if (!latest.ok || !latest.version) {
-    return {
-      ok: false,
-      currentVersion,
-      latestVersion: "",
-      hasUpdate: false,
-      downloadUrl: getAppUpdateUrl(),
-      source: "",
-      message: "未能获取最新版本。可在发布流程里生成并上传 latest.json 或 latest.yml（包含 version 字段），也可继续维护 GitHub Release 的最新 tag。"
-    };
-  }
-
-  return {
-    ok: true,
-    currentVersion,
-    latestVersion: latest.version,
-    hasUpdate: isNewerVersion(currentVersion, latest.version),
-    downloadUrl: buildAppUpdateUrl(latest.version),
-    source: latest.source,
-    message: ""
-  };
+function getAppUpdateUrl() {
+  const version = app.getVersion();
+  const ext = getPlatformPackageExtension();
+  return APP_UPDATE_URL_TEMPLATE
+    .replace("{version}", version)
+    .replace("{ext}", ext);
 }
 
 function getDebugModeFromChannel(channel) {
@@ -587,9 +486,8 @@ function createMainMenu() {
       submenu: [
         {
           label: "下载最新版本",
-          click: async () => {
-            const info = await getAppUpdateInfo();
-            shell.openExternal(info.downloadUrl || getAppUpdateUrl()).catch(() => {
+          click: () => {
+            shell.openExternal(getAppUpdateUrl()).catch(() => {
               // Ignore failures to open update page
             });
           }
@@ -953,23 +851,14 @@ function registerIpcHandlers() {
     if (!isTrustedIpcSender(event)) {
       throw new Error("Unauthorized IPC sender");
     }
-    const info = await getAppUpdateInfo();
-    return info.downloadUrl || getAppUpdateUrl();
-  });
-
-  ipcMain.handle("elxmoj:get-app-update-info", async (event) => {
-    if (!isTrustedIpcSender(event)) {
-      throw new Error("Unauthorized IPC sender");
-    }
-    return getAppUpdateInfo();
+    return getAppUpdateUrl();
   });
 
   ipcMain.handle("elxmoj:open-app-update-page", async (event) => {
     if (!isTrustedIpcSender(event)) {
       throw new Error("Unauthorized IPC sender");
     }
-    const info = await getAppUpdateInfo();
-    const url = info.downloadUrl || getAppUpdateUrl();
+    const url = getAppUpdateUrl();
     await shell.openExternal(url);
     return { ok: true, url };
   });

src/preload.js

@@ -1000,7 +1000,6 @@ if (isTrustedPreloadContext()) {
     checkUpdate: () => ipcRenderer.invoke("elxmoj:check-update"),
     runSelfCheck: () => ipcRenderer.invoke("elxmoj:run-self-check"),
     getLastSelfCheck: () => ipcRenderer.invoke("elxmoj:get-last-self-check"),
-    getAppUpdateInfo: () => ipcRenderer.invoke("elxmoj:get-app-update-info"),
     getAppUpdateUrl: () => ipcRenderer.invoke("elxmoj:get-app-update-url"),
     openAppUpdatePage: () => ipcRenderer.invoke("elxmoj:open-app-update-page")
   });

src/settings.html

@@ -190,9 +190,7 @@ <h1>ELXMOJ 设置</h1>
           <div class="row">
             <button id="btnAppUpdate" class="btn-soft">下载最新 App</button>
           </div>
-          <div id="appVersionInfo" class="hint">App 版本信息: 加载中...</div>
           <div id="appUpdateUrl" class="hint">下载地址: 加载中...</div>
-          <div id="appUpdateAdvice" class="hint"></div>
           <div id="status" class="status">等待操作...</div>
         </div>
 

src/settings.js

@@ -55,29 +55,11 @@ async function openAppUpdatePage() {
 
 async function showAppUpdateUrl() {
   try {
-    const info = await window.ELXMOJ.getAppUpdateInfo();
-    const url = info?.downloadUrl || (await window.ELXMOJ.getAppUpdateUrl());
-
-    const versionInfo = document.getElementById("appVersionInfo");
-    if (versionInfo) {
-      if (info?.ok) {
-        versionInfo.textContent = `App 版本: 当前 ${info.currentVersion}，最新 ${info.latestVersion}，${info.hasUpdate ? "可更新" : "已是最新"}`;
-      } else {
-        versionInfo.textContent = `App 版本: 当前 ${info?.currentVersion || "未知"}，最新版本获取失败`;
-      }
-    }
-
+    const url = await window.ELXMOJ.getAppUpdateUrl();
     const hint = document.getElementById("appUpdateUrl");
     if (hint) {
       hint.textContent = `下载地址: ${url}`;
     }
-
-    const advice = document.getElementById("appUpdateAdvice");
-    if (advice) {
-      advice.textContent = info?.ok
-        ? ""
-        : `无法自动获取最新版本时，请提供 latest.json 或 latest.yml（含 version 字段）到更新源目录，或维护 GitHub Release 最新 tag。${info?.message ? ` 详情: ${info.message}` : ""}`;
-    }
   } catch {
     // Ignore optional hint failures
   }