Delphi百度网盘真实地址解析

写在前边

• 这里用Delphi演示下获取百度网盘的真实地址，里面一些参数拼接是根据浏览器抓包来的。这里给出了部分源码。
• url网址使用于百度分享的地址。暂时没有适配有提取码的地址。

• 目前，获取到百度网盘真实地址也会限速了，亲测用IDM下载工具最高到600+kb/s

测试环境

• Delphi 10.2.3 Tokyo
• Windows 7

部分代码

获取api地址

var
  panUrlRe: string;
begin
  try
    try
        panUrlRe := FIDHttp.Get(panUrl);
        sign := GetMidString(panUrlRe, 'sign":"', '",');
        timestamp := GetMidString(panUrlRe, 'timestamp":', ',');
        app_id := GetMidString(panUrlRe, 'app_id":"', '",');
        bdstoken := GetMidString(panUrlRe, 'bdstoken":', ',');
        fid_list := GetMidString(panUrlRe, '"fs_id":', ',');
        primaryid := GetMidString(panUrlRe, 'shareid":', ',');
        uk := GetMidString(panUrlRe, 'uk=', '&');
        apiurl := 'https://pan.baidu.com/api/sharedownload?sign=' + sign +
          '&timestamp=' + timestamp + '&channel=chunlei&web=1' + '&app_id=' +
          app_id + '&bdstoken=' + bdstoken;
        wa := '1';
      end;
    except
      on e: exception do
        TThread.Synchronize(TThread.CurrentThread,
          procedure
          begin
            MainForm.Memo1.Lines.Add(e.Message);
          end);
    end;

  finally
    TThread.Synchronize(TThread.CurrentThread,
      procedure
      begin
        MainForm.ActivityIndicator1.Animate := False;
      end);
  end;

获取真实地址

var
  VcodUrl: string;
begin
  try
    try
      postinstr := TstringList.Create;
      postinstr.Add('encrypt=' + '0');
      postinstr.Add('fid_list=[' + fid_list + ']');
      postinstr.Add('path_list=');
      postinstr.Add('primaryid=' + primaryid);
      postinstr.Add('product=' + 'share');
      postinstr.Add('uk=' + uk);
      postResult := Fidhttp.Post(apiurl, postinstr);
      realUrl := StringReplace(GetMidString(postResult, 'dlink":"', '",'), '\',
        '', [rfReplaceAll]);
      if pos('-20', postResult) > 0 then
      begin
        VcodUrl :=
          'https://pan.baidu.com/api/getvcode?prod=pan&channel=chunlei&web=1&app_id='
          + app_id + '&bdstoken=' + bdstoken;
        vcodeRe := Fidhttp.Get(VcodUrl);
        vcode_str := GetMidString(vcodeRe, 'vcode":"', '",');
        imageUrl := StringReplace(GetMidString(vcodeRe, 'img":"', '"}'), '\',
          '', [rfReplaceAll]);
        TThread.Synchronize(TThread.CurrentThread,
          procedure
          begin
            MainForm.ActivityIndicator1.Animate := False;
            vcodeForm.ShowModal;
          end);
      end
      else
      begin
        TThread.Synchronize(TThread.CurrentThread,
          procedure
          begin
            MainForm.Memo1.Lines.Add('百度真实地址为(8小时有效)：' + realUrl);
            MainForm.Edit2.Text := realUrl;
          end);
        IdSSLIOHandlerSocketOpenSSL1.DisposeOf;
        Fidhttp.DisposeOf;
      end;
    except
      on e: exception do
        TThread.Synchronize(TThread.CurrentThread,
          procedure
          begin
            MainForm.Memo1.Lines.Add(e.Message);
          end);
    end;

  finally
    TThread.Synchronize(TThread.CurrentThread,
      procedure
      begin
        MainForm.ActivityIndicator1.Animate := False;
        MainForm.Button1.Enabled := True;
      end);
    postinstr.DisposeOf;
  end;
end;

下载3次会弹出验证码

var
  postinstr2: TstringList;
  VcodUrl: string;
begin
  try
    try
      postinstr2 := TstringList.Create;
      postinstr2.Add('encrypt=' + '0');
      postinstr2.Add('fid_list=[' + fid_list + ']');
      postinstr2.Add('path_list=');
      postinstr2.Add('primaryid=' + primaryid);
      postinstr2.Add('product=' + 'share');
      postinstr2.Add('uk=' + uk);
      postinstr2.Add('vcode_input=' + vcode_input);
      postinstr2.Add('vcode_str=' + vcode_str);
      postResult2 := Fidhttp.Post(apiurl, postinstr2);
      realUrl := StringReplace(GetMidString(postResult2, 'dlink":"', '",'), '\',
        '', [rfReplaceAll]);
      if realUrl <> '' then
        TThread.Synchronize(TThread.CurrentThread,
          procedure
          begin
            MainForm.Memo1.Lines.Add('百度真实地址为(8小时有效)：' + realUrl);
            MainForm.Edit2.Text := realUrl;
          end)
      else
        TThread.Synchronize(TThread.CurrentThread,
          procedure
          begin
            MainForm.Memo1.Lines.Add('获取失败，请尝试重新获取');
          end)
    except
      on e: exception do
        TThread.Synchronize(TThread.CurrentThread,
          procedure
          begin
            MainForm.Memo1.Lines.Add(e.Message);
          end);
    end;

  finally
    TThread.Synchronize(TThread.CurrentThread,
      procedure
      begin
        MainForm.ActivityIndicator1.Animate := False;
        MainForm.Button1.Enabled := True;
        postinstr2.DisposeOf;
      end);
  end;
end;

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