From 1e02b86fa02b92b41f0b54a4da836879ca169c13 Mon Sep 17 00:00:00 2001
From: qing <919836565@qq.com>
Date: Sun, 29 Sep 2024 01:05:02 +0800
Subject: [PATCH] =?UTF-8?q?123=E4=BA=91=E7=9B=98=E4=B8=8B=E8=BD=BD?=
 =?UTF-8?q?=E8=BE=85=E5=8A=A9=E6=B2=B9=E7=8C=B4=E8=84=9A=E6=9C=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 123download.js | 83 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 123download.js

diff --git a/123download.js b/123download.js
new file mode 100644
index 0000000..30689af
--- /dev/null
+++ b/123download.js
@@ -0,0 +1,83 @@
+// ==UserScript==
+// @name         123云盘下载辅助
+// @namespace    https://github.com/Bao-qing/123pan
+// @version      0.1
+// @description  123 Cloud Drive Unlimited Flow
+// @match        https://www.123pan.com/*
+// @grant        none
+// @author       Qing
+// ==/UserScript==
+
+(function () {
+    // 重写 XMLHttpRequest
+    const originalXHR = window.XMLHttpRequest;
+
+    function newXHR() {
+        const realXHR = new originalXHR();
+
+        realXHR.open = function (method, url, async, user, password) {
+            this._url = url;  // 记录请求的 URL
+            return originalXHR.prototype.open.apply(this, arguments);
+        };
+
+        realXHR.setRequestHeader = function (header, value) {
+            let headers = {
+                "user-agent": "123pan/v2.4.0(Android_7.1.2;Xiaomi)",
+                //"loginuuid": generateUUIDHex(),
+                "platform": "android",
+                "app-version": "61",
+                "x-app-version": "2.4.0"
+            }
+            // 如果header在列表中，则修改
+            if (header.toLowerCase() in headers) {
+                value = headers[header.toLowerCase()];
+            } else {
+                console.log('header:', header);
+            }
+
+            return originalXHR.prototype.setRequestHeader.apply(this, arguments);
+        };
+
+        // 拦截响应内容，修改 DownloadUrl以适应网页端下载
+        realXHR.send = function () {
+            const xhrInstance = this;
+            this.addEventListener('readystatechange', function () {
+                let origin_url;
+                let new_url_no_redirect;
+                let base64data;
+                if (xhrInstance.readyState === 4 && xhrInstance.status === 200) {
+                    // 解析响应的 JSON
+                    let responseText = xhrInstance.responseText;
+                    let responseJSON = JSON.parse(responseText);
+                    console.log('Original Response:', responseJSON);
+
+                    // 修改 DownloadUrl
+                    if (responseJSON.data && responseJSON.data.DownloadUrl) {
+                        origin_url = responseJSON.data.DownloadUrl;
+                        new_url_no_redirect = origin_url + "&auto_redirect=0";
+                        base64data = btoa(new_url_no_redirect);
+                        responseJSON.data.DownloadUrl = "https://web-pro2.123952.com/download-v2/?params=" + base64data + "&is_s3=0";
+                        console.log('Modified DownloadUrl:', responseJSON.data.DownloadUrl);
+                    }
+
+                    // 将修改后的 JSON 转为字符串
+                    let modifiedResponseText = JSON.stringify(responseJSON);
+
+                    // 使用 defineProperty 重写 responseText
+                    Object.defineProperty(xhrInstance, 'responseText', {
+                        get: function () {
+                            return modifiedResponseText;
+                        }
+                    });
+                    console.log('Modified Response:', modifiedResponseText);
+                }
+            });
+
+            return originalXHR.prototype.send.apply(this, arguments);
+        };
+
+        return realXHR;
+    }
+
+    window.XMLHttpRequest = newXHR;
+})();