// idOrUrl : 955407 or http://www.songtaste.com/song/955407 or http://www.songtaste.com/song/955407/
// songInfo: the ST song info: title, artist, realAddr, ...
// errStr: error reason string
public bool getSongInfo(string idOrUrl, out songInfo songInfo, out string errStr)
{
bool getInfoOk = false;
errStr = "未知错误！";
songInfo = new songInfo();
string songId = "";
string songUrl = "";
if (!isValidIdOrUrl(idOrUrl, out songId, out songUrl))
{
errStr = "无法识别的Songtaste的Id或Url：" + idOrUrl + " ！";
return(getInfoOk);
}
else
{
songInfo.id = songId;
songInfo.url = songUrl;
}
// here must clear previous cookies
// otherwise access html with previous cookies will get fault html:
//信息提示: 对不起，该用户不存在！ 3 秒钟以后系统将自动跳转！
crl.clearCurCookies();
string respHtml = "";
respHtml = crl.getUrlRespHtml(songInfo.url, stHtmlCharset);
if (respHtml != "")
{
//note: some song is illegal:
//http://songtaste.com/song/3029002/
//return invalid html content
//following can not found valid info
// 1. get song title and artist
//<p class="mid_tit">╰.很多人都在找的一首伤感韩文丶最近很火﹀淑熙（啦啦啦）丶</p><p></p>
string titleP = @"<p\s+?class=""mid_tit"">(?<title>.+?)</p>";
Match foundTitle = (new Regex(titleP)).Match(respHtml);
if (foundTitle.Success)
{
songInfo.title = foundTitle.Groups["title"].Value;
songInfo.title = crl.removeInvChrInPath(songInfo.title);
songInfo.title = songInfo.title.Trim();
//<h1 class="h1singer">1956.烟蒂</h1>
//<h1 class="h1singer">Rie fu</h1>
//<h1 class="h1singer"></h1>
string singerP = @"<h1\s+?class=""h1singer"">(?<singer>.*?)</h1>";
Match foundSinger = (new Regex(singerP)).Match(respHtml);
if (foundSinger.Success)
{
songInfo.artist = foundSinger.Groups["singer"].Value;
//special: http://www.songtaste.com/song/809103/, no singer
if (songInfo.artist == "")
{
songInfo.artist = "Unknown Singer";
}
songInfo.artist = crl.removeInvChrInPath(songInfo.artist);
songInfo.artist = songInfo.artist.Trim();
// 2. get song real address
//<a href="javascript:playmedia1('playicon','player', '5bf271ccad05f95186be764f725e9aaf07e0c7791a89123a9addb2a239179e64c91834c698a9c5d82f1ced3fe51ffc51', '355', '68', 'b3a7a4e64bcd8aabe4cabe0e55b57af5', 'http://m3.', '3015123',0);ListenLog(3015123, 0);">
//http://www.songtaste.com/song/2428041/ contain:
//<a href="javascript:playmedia1('playicon','player', 'cachefile33.rayfile.com/12f1/zh-cn/download/d1e8d86a0a9880f697aee789f27383db/preview', '355', '68', 'b3a7a4e64bcd8aabe4cabe0e55b57af5', 'http://224.', '2428041',0);ListenLog(2428041, 0);">
//string songP = @"javascript:playmedia1\('playicon','player', '(?<str>\w+)', '\d+', '\d+', '\w+', '.+?', '(?<sid>\d+)',\d+\);";
string songP = @"javascript:playmedia1\('playicon','player', '(?<str>[^']+)', '\d+', '\d+', '(?<keyStr>\w+)', '(?<urlPref>.+?)', '(?<sid>\d+)',\d+\);";
Regex songRx = new Regex(songP);
Match foundSong = songRx.Match(respHtml);
if (foundSong.Success)
{
string str = foundSong.Groups["str"].Value;
string urlPref = foundSong.Groups["urlPref"].Value;
string keyStr = foundSong.Groups["keyStr"].Value;
string sid = foundSong.Groups["sid"].Value;
if (str.Contains("/"))
{
//cachefile33.rayfile.com/12f1/zh-cn/download/d1e8d86a0a9880f697aee789f27383db/preview
//to get the suffix
string suffix = "";
string mainJsUrl = "http://image.songtaste.com/inc/main.js";
string respHtmlMainJs = crl.getUrlRespHtml(mainJsUrl);
// case "b3a7a4e64bcd8aabe4cabe0e55b57af5":
// return ".mp3";
string suffixP = @"""" + keyStr + @""":.+?return\s+""(?<suffix>\.\w+)"";";
Regex suffixRx = new Regex(suffixP, RegexOptions.Singleline);
Match foundSuffix = suffixRx.Match(respHtmlMainJs);
if (foundSuffix.Success)
{
suffix = foundSuffix.Groups["suffix"].Value;
songInfo.realAddr = urlPref + str + suffix;
}
}
else
{
//5bf271ccad05f95186be764f725e9aaf07e0c7791a89123a9addb2a239179e64c91834c698a9c5d82f1ced3fe51ffc51
Dictionary <string, string> headerDict = new Dictionary <string, string>();
headerDict.Add("x-requested-with", "XMLHttpRequest");
// when click play
// access http://songtaste.com/time.php, post data:
//str=5bf271ccad05f95186be764f725e9aaf07e0c7791a89123a9addb2a239179e64c91834c698a9c5d82f1ced3fe51ffc51&sid=3015123&t=0
Dictionary <string, string> postDict = new Dictionary <string, string>();
postDict.Add("str", str);
postDict.Add("sid", sid);
postDict.Add("t", "0");
string getRealAddrUrl = "http://songtaste.com/time.php";
songInfo.realAddr = crl.getUrlRespHtml(getRealAddrUrl, headerDict, stHtmlCharset, postDict);
}
if (songInfo.realAddr != "")
{
int lastPoint = songInfo.realAddr.LastIndexOf('.');
int strLen = songInfo.realAddr.Length;
songInfo.suffix = songInfo.realAddr.Substring(lastPoint);
songInfo.storedName = songInfo.title + " - " + songInfo.artist + songInfo.suffix;
getInfoOk = true;
}
else
{
errStr = "找不到歌曲的真实下载地址！";
}
}
else
{
errStr = "找不到歌曲的真实下载地址！";
}
}
else
{
errStr = "找不到歌曲的歌手信息！";
}
}
else
{
errStr = "找不到歌曲的标题信息！";
}
}
else
{
errStr = "无法获取网页信息！";
}
return(getInfoOk);
}
