import com.alibaba.fastjson.JSON;
import com.site.blog.my.core.entity.music.NetEaseMusicEntity;
import com.site.blog.my.core.util.HttpUtils;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.lang3.StringUtils;
import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import java.math.BigInteger;
import java.util.*;
public class NetEaseMusicEntityUtil {
/**
* buU9L(["爱心", "女孩", "惊恐", "大笑"])的值
*/
public static String g = "0CoJUm6Qyw8W8jud";
/**
* buU9L(["流泪", "强"])的值
*/
public static String b = "010001";
/**
* buU9L(Rg4k.md)的值
*/
public static String c = "00e0b509f6259df8642dbc35662901477df22677ec152b5ff68ace615bb7b725152b3ab17a876aea8a5aa76d2e417629ec4ee341f56135fccf695280104e0312ecbda92557c93870114af6c9d05c4f7f0c3685b7a46bee255932575cce10b424d813cfe4875d3e82047b97ddef52741d546b8e289dc6935b3ece0462db0a22b8e7";
/**
* 随机生成长度为16的字符串
*/
public static String i = createRandomStr(16);
/**
* 随机生成长度i的字符串
*
* @param size
* @return
*/
public static String createRandomStr(int size) {
String keys = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
String key = "";
for (int i = 0; i < size; i++) {
int pos = (int) Math.floor(Math.random() * keys.length());
key = key + String.valueOf(keys.charAt(pos));
}
return key;
}
/**
* 随机生成USERAGENT
*
* @return
*/
public static String createRandomUSERAGENTS() {
String[] USER_AGENTS = {
"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET CLR 2.0.50727; Media Center PC 6.0)",
"Mozilla/5.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET CLR 1.0.3705; .NET CLR 1.1.4322)",
"Mozilla/4.0 (compatible; MSIE 7.0b; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727; InfoPath.2; .NET CLR 3.0.04506.30)",
"Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN) AppleWebKit/523.15 (KHTML, like Gecko, Safari/419.3) Arora/0.3 (Change: 287 c9dfb30)",
"Mozilla/5.0 (X11; U; Linux; en-US) AppleWebKit/527+ (KHTML, like Gecko, Safari/419.3) Arora/0.6",
"Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.2pre) Gecko/20070215 K-Ninja/2.1.1",
"Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9) Gecko/20080705 Firefox/3.0 Kapiko/3.0",
"Mozilla/5.0 (X11; Linux i686; U;) Gecko/20070322 Kazehakase/0.4.5"
};
Random rand = new Random();
int num = rand.nextInt(USER_AGENTS.length);
return USER_AGENTS[num];
}
/**
* 截取长度
*
* @param str
* @param size
* @return
*/
public static String zfill(String str, int size) {
while (str.length() < size) {
str = "0" + str;
}
return str;
}
/**
* aes加密
*
* @param sSrc
* @param sKey
* @return
* @throws Exception
*/
public static String aesEncrypt(String sSrc, String sKey) throws Exception {
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
byte[] raw = sKey.getBytes();
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
//使用CBC模式，需要一个向量iv，可增加加密算法的强度
IvParameterSpec iv = new IvParameterSpec("0102030405060708".getBytes());
cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
byte[] encrypted = cipher.doFinal(sSrc.getBytes("utf-8"));
//此处使用BASE64做转码。
return new Base64().encodeToString(encrypted);
}
/**
* rsa加密算法
*
* @param text
* @param pubKey
* @param modulus
* @return
*/
public static String rsaEncrypt(String text, String pubKey, String modulus) {
List<String> list = Arrays.asList(text.split(""));
Collections.reverse(list);
String _text = StringUtils.join(list, "");
BigInteger biText = new BigInteger(1, _text.getBytes());
BigInteger biEx = new BigInteger(1, hexToBytes(pubKey));
BigInteger biMod = new BigInteger(1, hexToBytes(modulus));
String biRet = biText.modPow(biEx, biMod).toString(16);
return zfill(biRet, 256);
}
/**
* 十六进制,字节
*
* @param hexString 十六进制字符串
* @return {@link byte[]}
*/
private static byte[] hexToBytes(String hexString) {
if (hexString == null || hexString.equals("")) {
return null;
}
int length = hexString.length() / 2;
char[] hexChars = hexString.toCharArray();
byte[] bytes = new byte[length];
String hexDigits = "0123456789abcdef";
for (int i = 0; i < length; i++) {
int pos = i * 2; // 两个字符对应一个byte
int h = hexDigits.indexOf(hexChars[pos]) << 4; // 注1
int l = hexDigits.indexOf(hexChars[pos + 1]); // 注2
if (l == -1) { // 非16进制字符
return null;
}
bytes[i] = (byte) (h | l);
}
return bytes;
}
/**
* 得到参数
*
* @param musicId 音乐id
* @return {@link String}
*/
public static String getParams(String musicId) throws Exception {
String encText = "{\"ids\":\"[" + musicId + "]\",\"level\":\"standard\",\"encodeType\":\"aac\",\"csrf_token\":\"\"}\"";
return aesEncrypt(aesEncrypt(encText, g), i);
}
public static void main(String[] args) throws Exception {
Map formdata = new HashMap<>(2);
formdata.put("params", getParams("32019002"));
formdata.put("encSecKey", rsaEncrypt(i, b, c));
Map header = new HashMap<>(3);
header.put("User-Agent", createRandomUSERAGENTS());
header.put("referer", "https://music.163.com");
header.put("origin", "https://music.163.com/");
header.put("accept", "*/*");
String s = HttpUtils.httpPostRequest("https://music.163.com/weapi/song/enhance/player/url/v1?csrf_token=", header, formdata);
System.out.println(s);
}
}