AiWork软件下载蓝奏云OCR文件到文件夹 - B2B网络软件

/*
欢迎使用AiWork安卓自动化IDE
*/
// 定义主函数
function downloadLanzouFile(url, saveFilePath, maxRetries) {
// 设置默认参数
if (maxRetries === undefined) {
maxRetries = 5; // 增加默认重试次数
}
var http = new okHttp();
var domains = ["wwt.lanzouu.com", "wwt.lanzoui.com", "wwt.lanzoux.com"]; // 备用域名
var currentDomain = domains[0];
var startTime = new Date().getTime();
function sleep(ms) {
java.lang.Thread.sleep(ms);
}
// 指数退避算法计算等待时间
function getWaitTime(retryCount) {
return Math.min(2000 * Math.pow(1.5, retryCount), 10000); // 最长等待10秒
}
function formatTime(ms) {
if (ms < 1000) return ms + "毫秒";
return Math.floor(ms / 1000) + "秒";
}
for (var retryCount = 0; retryCount < maxRetries; retryCount++) {
if (retryCount > 0) {
var waitTime = getWaitTime(retryCount);
printl("第" + (retryCount + 1) + "次尝试下载...(等待" + formatTime(waitTime) + ")");
// 每次重试时尝试切换域名
currentDomain = domains[retryCount % domains.length];
printl("切换到域名: " + currentDomain);
sleep(waitTime);
}
try {
printl("开始下载过程...");
// 获取初始页面
printl("正在获取初始页面...");
var processedUrl = url.replace(/wwt\.lanzo[a-z]{1,2}\.com/, currentDomain);
var r = http.get(processedUrl);
// 检查是否包含错误信息
if (r.includes("文件不存在") || r.includes("已被删除")) {
throw "文件不存在或已被删除";
}
// 获取跳转路径
var regex = /\/fn\?[\w-]+/g;
var fnPathMatch = r.match(regex);
if (!fnPathMatch) {
throw "无法获取跳转路径";
}
var fnPath = fnPathMatch[0];
printl("获取跳转路径:", fnPath);
// 获取二级页面
var r2 = http.get("https://" + currentDomain + fnPath);
printl("已获取二级页面");
// 检查二级页面是否有效
if (r2.includes("文件不存在") || r2.includes("已被删除")) {
throw "文件不存在或已被删除";
}
// 使用更精确的正则匹配sign
var signMatch = r2.match(/var wp_sign = '([^']+)';/);
if (!signMatch) {
throw "无法提取签名参数";
}
var sign = signMatch[1];
printl("获取签名:", sign);
// 匹配ajax请求路径
var ajaxPathMatch = r2.match(/url : '(\/ajaxm\.php\?file=\d+)'/);
if (!ajaxPathMatch) {
throw "无法提取ajax路径";
}
var ajaxUrl = "https://" + currentDomain + ajaxPathMatch[1];
printl("构造请求地址:", ajaxUrl);
// 配置请求头
http.clearHeader();
http.setHeader('Referer', "https://" + currentDomain + fnPath);
http.setHeader('User-Agent', "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36");
http.setHeader('X-Requested-With', 'XMLHttpRequest');
http.setHeader('Origin', "https://" + currentDomain);
http.setHeader('Content-Type', 'application/x-www-form-urlencoded');
http.setHeader('Accept', 'application/json, text/javascript, */*; q=0.01');
http.setHeader('Accept-Language', 'zh-CN,zh;q=0.9,en;q=0.8');
http.setHeader('Connection', 'keep-alive');
http.setHeader('Cache-Control', 'no-cache');
http.setHeader('Pragma', 'no-cache');
// 构造POST数据
var data = new map();
data.add('action', 'downprocess');
data.add('signs', sign.substring(0, 5));
data.add('sign', sign);
data.add('websign', '');
data.add('websignkey', '61rx');
data.add('ves', 1);
// 发送POST请求
var postRes = http.post(ajaxUrl, data);
// 检查是否返回了错误页面
if (postRes.includes("<!DOCTYPE html>") || postRes.includes("405")) {
throw "服务器返回了错误页面，需要重试";
}
try {
var postData = JSON.parse(postRes);
if (!postData.dom || !postData.url) {
throw "无法获取下载信息";
}
// 获取下载地址
var downloadUrl = postData.dom + "/file/" + postData.url;
printl("初始下载地址:", downloadUrl);
// 尝试直接访问下载地址，设置跟随重定向
printl("尝试直接访问下载地址...");
http.clearHeader();
http.setHeader('User-Agent', "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36");
http.setHeader('Accept', "*/*");
http.setHeader('Accept-Language', "zh-CN,zh;q=0.9,en;q=0.8");
http.setHeader('Referer', "https://" + currentDomain + "/");
http.setHeader('Connection', 'keep-alive');
// 直接尝试下载文件
printl("开始下载文件...");
var downloadStartTime = new Date().getTime();
http.downloadFile(downloadUrl, saveFilePath);
var downloadEndTime = new Date().getTime();
var downloadTime = downloadEndTime - downloadStartTime;
printl("文件下载完成，耗时: " + formatTime(downloadTime));
// 检查文件大小
try {
var file = new java.io.File(saveFilePath);
var fileSize = file.length();
printl("文件大小: " + formatFileSize(fileSize));
if (fileSize < 1024) { // 如果文件小于1KB，可能是错误页面
printl("警告: 文件大小异常小，可能下载不完整");
}
} catch (e) {
printl("无法获取文件信息: " + e);
}
var totalTime = new Date().getTime() - startTime;
printl("总耗时: " + formatTime(totalTime));
return true; // 下载成功，退出重试循环
} catch (jsonError) {
printl("解析JSON失败: " + jsonError + ", 响应内容: " + postRes.substring(0, 100));
throw "无法解析服务器响应";
}
} catch (error) {
printl("当前尝试出错: " + error);
if (retryCount === maxRetries - 1) {
// 最后一次尝试也失败了
printl("所有重试都失败了");
return false;
}
// 否则继续下一次重试
continue;
}
}
return false;
}
// 格式化文件大小
function formatFileSize(bytes) {
if (bytes < 1024) return bytes + " B";
else if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(2) + " KB";
else if (bytes < 1024 * 1024 * 1024) return (bytes / (1024 * 1024)).toFixed(2) + " MB";
else return (bytes / (1024 * 1024 * 1024)).toFixed(2) + " GB";
}
// 使用示例
var url = "https://wwwgmg.lanzn.com/tomatoOCR";
var saveFilePath = "/sdcard/Download/TomatoOCR.apk";
var result = downloadLanzouFile(url, saveFilePath);
if (result) {
printl("文件成功下载到: " + saveFilePath);
} else {
printl("文件下载失败");
}

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