PDF file Preview; Cors file download configuration

index.js

@@ -1,10 +1,13 @@
 var authConfig = {
     "siteName": "GoIndex", // 网站名称
-    "version": "_3.9", // 程序版本。用户不要手动修改
+    "version": "_4.23", // 程序版本。用户不要手动修改
     // 此版本只支持 material
     "theme": "material", // material  classic
-    "client_id": "202264815644.apps.googleusercontent.com",
-    "client_secret": "X4Z3ca8xfWDb1Voo-F9a7ZxJ",
+    /*"client_id": "202264815644.apps.googleusercontent.com",
+    "client_secret": "X4Z3ca8xfWDb1Voo-F9a7ZxJ",*/
+    // 强烈推荐使用自己的 client_id 和 client_secret
+    "client_id": "",
+    "client_secret": "",
     "refresh_token": "", // 授权 token
     /**
      * 设置要显示的多个云端硬盘；按格式添加多个
@@ -43,9 +46,10 @@ var authConfig = {
      * 如果设置的值过小，会导致搜索结果页面滚动条增量加载（分页加载）失效；
      * 此值的大小影响搜索操作的响应速度。
      */
-    "search_result_list_page_size": 50
+    "search_result_list_page_size": 50,
+    // 确认有 cors 用途的可以开启
+    "enable_cors_file_down": false
     // user_drive_real_root_id
-
 };
 
 
@@ -222,7 +226,8 @@ async function handleRequest(request) {
         }
         let file = await gd.file(path);
         let range = request.headers.get('Range');
-        return gd.down(file.id, range);
+        const inline_down = 'true' === url.searchParams.get('inline');
+        return gd.down(file.id, range, inline_down);
     }
 }
 
@@ -342,11 +347,15 @@ class googleDrive {
         }
     }
 
-    async down(id, range = '') {
+    async down(id, range = '', inline = false) {
         let url = `https://www.googleapis.com/drive/v3/files/${id}?alt=media`;
         let requestOption = await this.requestOption();
         requestOption.headers['Range'] = range;
-        return await fetch(url, requestOption);
+        let res = await fetch(url, requestOption);
+        const {headers} = res = new Response(res.body, res)
+        this.authConfig.enable_cors_file_down && headers.append('Access-Control-Allow-Origin', '*');
+        inline === true && headers.set('Content-Disposition', 'inline');
+        return res;
     }
 
     async file(path) {

themes/material/app.js

@@ -358,7 +358,7 @@ function append_files_to_list(path, files) {
                 });
             }
             var ext = p.split('.').pop().toLowerCase();
-            if ("|html|php|css|go|java|js|json|txt|sh|md|mp4|webm|avi|bmp|jpg|jpeg|png|gif|m4a|mp3|flac|wav|ogg|mpg|mpeg|mkv|rm|rmvb|mov|wmv|asf|ts|flv|".indexOf(`|${ext}|`) >= 0) {
+            if ("|html|php|css|go|java|js|json|txt|sh|md|mp4|webm|avi|bmp|jpg|jpeg|png|gif|m4a|mp3|flac|wav|ogg|mpg|mpeg|mkv|rm|rmvb|mov|wmv|asf|ts|flv|pdf|".indexOf(`|${ext}|`) >= 0) {
                 targetFiles.push(filepath);
                 p += "?a=view";
                 c += " view";
@@ -681,6 +681,8 @@ function file(path) {
     if ("|bmp|jpg|jpeg|png|gif|".indexOf(`|${ext}|`) >= 0) {
         return file_image(path);
     }
+
+    if ('pdf' === ext) return file_pdf(path);
 }
 
 // 文件展示 |html|php|css|go|java|js|json|txt|sh|md|
@@ -799,6 +801,17 @@ function file_audio(path) {
     $('#content').html(content);
 }
 
+// 文件展示 pdf  pdf
+function file_pdf(path) {
+    const url = window.location.origin + path;
+    const inline_url = `${url}?inline=true`
+    const file_name = decodeURI(path.slice(path.lastIndexOf('/') + 1, path.length))
+    var content = `
+	<object data="${inline_url}" type="application/pdf" name="${file_name}" style="width:100%;height:94vh;"><embed src="${inline_url}" type="application/pdf"/></object>
+    <a href="${url}" class="mdui-fab mdui-fab-fixed mdui-ripple mdui-color-theme-accent"><i class="mdui-icon material-icons">file_download</i></a>
+	`;
+    $('#content').removeClass('mdui-container').addClass('mdui-container-fluid').css({padding: 0}).html(content);
+}
 
 // 图片展示
 function file_image(path) {