抖音無水印解析API

 翻譯一個JAVA版API解析

 

 

package com.demo;


import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.params.HttpMethodParams;

import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.*;

public class Testce {


    private static String url = "http://v.douyin.com/AaP8m6/";
    private static String [] DEVICEINFOS = {"iid=43619087057&device_id=57318346369","iid=74655440239&device_id=57318346369"};

    public static void main(String[] args) {

        parseVideoByLink(url);

    }


    public static void parseVideoByLink(String url) {

        String awemeId = getAwemeId(url);
        int api_n = 4; //控制每次取得的設備信息數量
        for(String s : getApis(4)){
            String req_url = s + awemeId;
            System.out.println("請求地址： " + req_url);
            String htmlText = reqPost(req_url);

            System.out.println(htmlText);
        }
    }


    /**
     * 生成api
     * @param api_n
     * @return
     */
    private static List<String> getApis(int api_n){
        Map<String,String> version = versions(); //版本號
        List<String> apis = new ArrayList<>();
        List<String> rand_devices = new ArrayList<>();
        int devices_size = DEVICEINFOS.length; //實際設備信息條數
        int real_size = devices_size < api_n ? devices_size : api_n ; //最終獲取的設備信息數量
        //獲取隨機設備信息
        for(int i =0 ; i <real_size ;i++){
            int rand = new Random().nextInt(devices_size) ;
            String rand_device = DEVICEINFOS[rand];
            if (rand_devices.contains(rand_device)) {
                continue;
            } else {
                rand_devices.add(rand_device) ;
            }
        }
        for(String k : version.keySet()){
            String  version_apis = "" ;
            for(String randDevice:rand_devices){
                version_apis = "https://aweme.snssdk.com/aweme/v1/aweme/detail/?origin_type=link&retry_type=no_retry&"+randDevice+"&ac=wifi&channel=update&aid=1128&app_name=aweme&version_code="+k+"&version_name="+version.get(k)+"&device_platform=android&ssmix=a&device_type=MI+8&device_brand=xiaomi&language=zh&os_api=22&os_version=5.1.1&uuid=865166029463703&openudid=ec6d541a2f7350cd&manifest_version_code="+k+"&resolution=1080*1920&dpi=480&update_version_code=2512&ts=1561136204&as=a1e500706c54fd8c8d&cp=004ad55fc8d60ac4e1&aweme_id=";
            }
            apis.add(version_apis);
        }
        return apis;
    }

    /**
     * 獲取awmeId
     * @param link
     * @return
     */
    private static String getAwemeId(String link) {
        String itemId = null;
        if (link.contains("http://v.douyin.com/")) {
            String html = reqGet(link);
            itemId = html.substring(html.indexOf("itemId:")  );
            itemId = itemId.substring(0  ,itemId.indexOf(","));
            itemId = itemId.substring(itemId.indexOf("\"")+1 ,itemId.lastIndexOf("\"") );
            System.out.println();
            System.out.println("itemId : " + itemId);
        } else if (link.contains("https://www.iesdouyin.com")) { //長鏈接
        }
        return itemId;
    }




    /**
     * 版本號
     * @return
     */
    public static Map<String,String> versions(){
        Map<String,String> map = new HashMap<>();
        map.put("680","6.8.0");
        map.put("251","2.5.1");
        map.put("140","1.4.0");
        return map;
    }


    /**
     * post請求
     * @param url
     * @return
     */
    public static String reqPost(String url) {
        //編碼：UTF-8
        return send(url);
    }


    /**
     * 向指定 URL 發送POST方法的請求
     * @param url 發送請求的 URL
     * @return 所代表遠程資源的響應結果
     */
    public static  String send(String url) {
        PrintWriter out = null;
        BufferedReader in = null;
        String result = "";
        try {
            URL realUrl = new URL(url);
            // 打開和URL之間的連接
            HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection();
            // 設置通用的請求屬性
            conn.setRequestProperty("User-Agent", "okhttp/3.10.0.1");
            conn.setRequestProperty("Accept-Encoding", "utf-8");
            conn.setRequestMethod("GET");
            conn.setUseCaches(false);
            conn.setInstanceFollowRedirects(true);
            // 發送POST請求必須設置如下兩行
            conn.setDoOutput(true);
            conn.setDoInput(true);
            conn.setConnectTimeout(3000);
            conn.setReadTimeout(3000);

            out = new PrintWriter(new OutputStreamWriter(conn.getOutputStream(), "UTF-8"), Boolean.FALSE);
            out.flush();

            // 定義BufferedReader輸入流來讀取URL的響應
            in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
            System.out.println("發送 POST 請求出現異常！" + e);
            e.printStackTrace();
        }
        // 使用finally塊來關閉輸出流、輸入流
        finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
        return result;
    }

    /**
     * get請求
     * @param url
     * @return
     */
    public static String reqGet(String url) {
        //編碼：UTF-8
        return httpGet(url,  "UTF-8",false);
    }

    /**
     * get請求
     * @param url
     * @return
     */
    public static String httpGet(String url, String code,boolean flag) {
        System.out.println("GetPage: " + url);
        String content = null;
        HttpClient httpClient = new HttpClient();
        //設置header
        if(flag){
            //httpClient.getParams().setParameter("Accept-Encoding", "utf-8" );
            //httpClient.getParams().setParameter("User-Agent", "okhttp/3.10.0.1");
            httpClient.getParams().setParameter(HttpMethodParams.STRICT_TRANSFER_ENCODING, "utf-8" );
            httpClient.getParams().setParameter(HttpMethodParams.USER_AGENT, "okhttp/3.10.0.1");
        }else{
            httpClient.getParams().setParameter(HttpMethodParams.USER_AGENT, "Mozilla/5.0 (Linux; Android 8.0.0; MI 6 Build/OPR1.170623.027; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/62.0.3202.84 Mobile Safari/537.36");
        }
        GetMethod method = new GetMethod(url);
        try {
            int statusCode = httpClient.executeMethod(method);
            System.out.println("httpClientUtils::statusCode=" + statusCode);
            System.out.println(method.getStatusLine());
            content = new String(method.getResponseBody(), code);

        } catch (Exception e) {
            System.out.println("time out");
            e.printStackTrace();
        } finally {
            if (method != null) method.releaseConnection();
            method = null;
            httpClient = null;
        }
        return content;
    }



}