perf: 优化下载工具

app/Module/Base.php

@@ -1404,7 +1404,12 @@ class Base
      */
     public static function ajaxError($msg, $data = [], $ret = 0, $abortCode = 404)
     {
-        abort_if(Request::header('Content-Type') !== 'application/json', $abortCode, Doo::translate($msg));
+        if (Request::header('Content-Type') !== 'application/json') {
+            $translateMsg = Doo::translate($msg);
+            abort($abortCode, $translateMsg, [
+                'X-Error-Message-Base64' => base64_encode($translateMsg),
+            ]);
+        }
         return Base::retError($msg, $data, $ret);
     }
 

electron/electron-down.js

@@ -31,6 +31,12 @@ function initialize(onStarted= null) {
         onInterrupted: (item) => {
             downloadManager.refresh(item.getSavePath());
             syncDownloadItems();
+            // 尝试更新下载项的错误信息
+            downloadManager.updateError(item).then(success => {
+                if (success) {
+                    syncDownloadItems();
+                }
+            });
         },
         onProgress: (item) => {
             downloadManager.refresh(item.path);

electron/render/download/index.html

@@ -70,7 +70,7 @@
                             <span v-else class="download-time">{{ formatTime(item.startTime) }}</span>
                             <!-- 状态 -->
                             <span v-if="item.state !== 'progressing' || item.paused" class="state" :class="getStateClass(item)">
-                                {{ getStateText(item) }}
+                                {{ getStateText(item) }}{{item.error ? `: ${item.error}` : ''}}
                             </span>
                         </div>
                     </div>

electron/render/download/style.css

@@ -498,11 +498,13 @@ body.win32 {
 /* Toast 提示框样式 */
 .toast {
     position: fixed;
+    left: 0;
+    right: 0;
     bottom: 20px;
-    left: 50%;
-    transform: translateX(-50%);
     z-index: 1000;
     animation: toast-slide-up 0.3s ease-out;
+    display: flex;
+    justify-content: center;
 }
 
 .toast-content {
@@ -516,7 +518,7 @@ body.win32 {
     box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
     font-size: 13px;
     min-width: 200px;
-    white-space: nowrap;
+    max-width: 90vw;
 }
 
 .toast.success .toast-content {
@@ -529,15 +531,17 @@ body.win32 {
 
 .toast-message {
     flex: 1;
+    max-height: 200px;
+    overflow-y: auto;
 }
 
 @keyframes toast-slide-up {
     from {
         opacity: 0;
-        transform: translate(-50%, 20px);
+        transform: translateY(20px);
     }
     to {
         opacity: 1;
-        transform: translate(-50%, 0);
+        transform: translateY(0);
     }
 }

electron/utils/download.js

@@ -60,6 +60,7 @@ class DownloadManager {
         // 添加下载项
         this.downloadHistory.unshift({
             ...this.convert(downloadItem),
+            error: null,
             _source: downloadItem,
         });
         if (this.downloadHistory.length > 1000) {
@@ -101,6 +102,41 @@ class DownloadManager {
         store.set('downloadHistory', this.downloadHistory);
     }
 
+    /**
+     * 尝试更新下载项的错误信息
+     * @param {Electron.DownloadItem} downloadItem
+     */
+    async updateError(downloadItem) {
+        const urls = downloadItem.getURLChain()
+        const url = urls.length > 0 ? urls[0] : downloadItem.getURL()
+        const path = downloadItem.getSavePath()
+
+        const item = this.downloadHistory.find(d => d.path === path)
+        if (!item) {
+            return;
+        }
+
+        try {
+            const res = await fetch(url, {
+                method: 'HEAD',
+            })
+            let error = null
+            if (res.headers.get('X-Error-Message-Base64')) {
+                error = Buffer.from(res.headers.get('X-Error-Message-Base64'), 'base64').toString('utf-8')
+            } else if (res.headers.get('X-Error-Message')) {
+                error = res.headers.get('X-Error-Message')
+            }
+            if (error) {
+                Object.assign(item, {error});
+                store.set('downloadHistory', this.downloadHistory);
+                return true;
+            }
+        } catch {
+            // 忽略错误
+        }
+        return false
+    }
+
     /**
      * 暂停下载项
      * @param {string} path