NetLyric.java :  » Mp3 » androidmp3player » cn » edu » nju » software » netlyric » Android Open Source

package cn.edu.nju.software.netlyric;

import java.net.URL;
import java.net.URLEncoder;
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;


public class NetLyric {
  private URL url;
  private String artist;
  private String title;

  private String mlyric = "";

  public NetLyric(String art, String tit) {
    artist = art;
    title = tit;
    url = generateURL();
  }

  public NetLyric(String s) {

    String url1 = "http://mp3.baidu.com/m?f=ms&tn=baidump3lyric&ct=150994944&lf=2&rn=10&word=";
    String url3 = "&lm=-1";
    // http://mp3.sogou.com/lyric.so?query=andy&class=3&st=&ac=&pf=&_asf=&_ast=&p=&w=0
    // String url1 = "http://mp3.sogou.com/lyric.so?query=";
    // String url3 = "&class=3&st=&ac=&pf=&_asf=&_ast=&p=&w=0";
    try {
      String s1 = URLEncoder.encode(s, "GB2312");
      url = new URL(url1 + s1 + url3);
    } catch (Exception e1) {
      e1.printStackTrace();
    }

  }

  public void setKey(String s) {
    String url1 = "http://mp3.baidu.com/m?f=ms&tn=baidump3lyric&ct=150994944&lf=2&rn=10&word=";
    String url3 = "&lm=-1";

    try {
      String s1 = URLEncoder.encode(s, "GB2312");
      url = new URL(url1 + s1 + url3);
    } catch (Exception e1) {
      e1.printStackTrace();
    }

  }

  protected URL generateURL() {
    String url1 = "http://mp3.baidu.com/m?f=ms&tn=baidump3lyric&ct=150994944&lf=2&rn=10&word=";
    String url3 = "&lm=-1";

    try {
      String s = URLEncoder.encode(artist + " " + title, "GB2312");
      url = new URL(url1 + s + url3);
    } catch (Exception e) {
      e.printStackTrace();
    }
    return url;

  }

  private void fetchLyric() {
    StringBuffer sb = new StringBuffer();
    try {
      Scanner in = new Scanner(url.openConnection().getInputStream(),
          "GB2312");
      for (; in.hasNextLine();) {
        sb.append(in.nextLine() + "\n");
      }
      mlyric = sb.toString();
    } catch (Exception e) {
      e.printStackTrace();
    }
  }

  private String explainLyric() {

    try {
      Pattern regex = Pattern
          .compile(
              "<div style=\"padding-left:10px;line-height:20px;padding-top:1px\">.*?</div>",
              Pattern.DOTALL);

      Matcher matcher = regex.matcher(mlyric);
      while (matcher.find()) {
        mlyric = mlyric.substring(matcher.start(), matcher.end());
        // mlyric = matcher.group();
        mlyric = mlyric
            .replaceAll(
                "<div style=\"padding-left:10px;line-height:20px;padding-top:1px\">|</div>",
                " ");
        if (mlyric == null)
          return "";
        mlyric = mlyric.replaceAll("<br>", "\n");
        if (mlyric == null)
          return "";
        mlyric = mlyric.replaceAll(
            "<font style=color:#e10900>|</font>", " ");
        if (mlyric == null)
          return "";
        mlyric = removeTagFromText(mlyric);
        mlyric = removeTag(mlyric);
        mlyric.replaceAll("\u005Bti:", "");
        mlyric.replaceAll("\u005Bar:", "");
        mlyric.replaceAll("\u005Bal:", "");
        mlyric.replaceAll("]", "");
        mlyric.replaceAll("&#39;", "'");
      }
    } catch (Exception e) {
      e.printStackTrace();
    }

    if (mlyric == null)
      mlyric = "MO";
    return mlyric;
  }

  public String getLyric() {
    fetchLyric();
    String s = explainLyric();
    return s;
  }

  public String removeTagFromText(String content) {
    Pattern p = null;
    Matcher m = null;
    String value = null;

    // <> "<[^<>]*>"
    p = Pattern.compile("(<[^<>].*?>)",Pattern.DOTALL);
    m = p.matcher(content);
    String temp = content;
    while (m.find()) {
      value = m.group(0);
      temp = temp.replace(value, "");
    }
    return temp;
  }

  public String removeTag(String content) {
    int left = 0;
    for (int i = 0; i < content.length(); i++) {
      if (content.charAt(i) == '<')
        left = i;
      else if (content.charAt(i) == '>'){
        String leftstr = content.substring(0, left);
        String rightstr = content.substring(i+1,content.length());
        content = leftstr + rightstr; 
      }
      else if (content.charAt(i) == ']'){
        String leftstr = content.substring(0, i);
        String rightstr = content.substring(i+1,content.length());
        content = leftstr + rightstr; 
      }
      else if(content.charAt(i) == '['){
        if(content.charAt(i+1) == 't'){
          String leftstr = content.substring(0, i);
          String rightstr = content.substring(i+4,content.length());
          content = leftstr + "" + rightstr; 
        }
        if(content.charAt(i+1) == 'a' && content.charAt(i+2) == 'r'){
          String leftstr = content.substring(0, i);
          String rightstr = content.substring(i+4,content.length());
          content = leftstr + "" + rightstr; 
        }
        if(content.charAt(i+1) == 'a' && content.charAt(i+2) == 'l'){
          String leftstr = content.substring(0, i);
          String rightstr = content.substring(i+4,content.length());
          content = leftstr + "" + rightstr; 
        }
      }
      else if(content.charAt(i) == '&' && content.charAt(i+1) == '#'
        && content.charAt(i+2) == '3' && content.charAt(i+3) == '9'
          && content.charAt(i+4) == ';'){
        String leftstr = content.substring(0, i);
        String rightstr = content.substring(i+5,content.length());
        content = leftstr + "'" + rightstr; 
      }
    }    
    
    return content;
  }

}