1. add music parser

parser/src/main/java/cn/qaiu/util/AESUtils.java

@@ -329,4 +329,73 @@ public class AESUtils {
         return _0x53928f + "-" + _0x430930 + "-" + _0x49ec94;
     }
 
+
+    public static String encrypt(String str, String pwd) {
+        if (pwd == null || pwd.length() <= 0) {
+            throw new IllegalArgumentException("Please enter a password with which to encrypt the message.");
+        }
+
+        // 生成 prand 值
+        StringBuilder prand = new StringBuilder();
+        for (int i = 0; i < pwd.length(); i++) {
+            prand.append((int) pwd.charAt(i));
+        }
+
+        // 计算 sPos, mult, incr, modu
+        int sPos = prand.length() / 5;
+        long mult = Long.parseLong(prand.substring(sPos, sPos + 1) +
+                prand.substring(sPos * 2, sPos * 2 + 1) +
+                prand.substring(sPos * 3, sPos * 3 + 1) +
+                prand.substring(sPos * 4, sPos * 4 + 1) +
+                prand.substring(sPos * 5, sPos * 5 + 1));
+        int incr = (int) Math.ceil(pwd.length() / 2.0);
+        long modu = (long) Math.pow(2, 31) - 1;
+
+        if (mult < 2) {
+            throw new IllegalArgumentException("Algorithm cannot find a suitable hash. Please choose a different password.");
+        }
+
+        // 生成 salt 并加到 prand 上
+        long salt = Math.round(Math.random() * 1000000000) % 100000000;
+        prand.append(salt);
+
+        // 使用 BigInteger 处理超过 Long 范围的 prand 值
+        BigInteger prandValue = new BigInteger(prand.toString());
+        while (prandValue.toString().length() > 10) {
+            prandValue = prandValue.divide(BigInteger.TEN).add(prandValue.remainder(BigInteger.TEN));
+        }
+
+        // 将 prand 转换为 long 进行后续处理
+        prandValue = prandValue.multiply(BigInteger.valueOf(mult)).add(BigInteger.valueOf(incr)).mod(BigInteger.valueOf(modu));
+
+        // 加密过程
+        StringBuilder encStr = new StringBuilder();
+        for (int i = 0; i < str.length(); i++) {
+            // 将字符和异或的结果强制转换为 int
+            int encChr = (int) (str.charAt(i) ^ (int) ((prandValue.doubleValue() / modu) * 255));
+            String hexStr = Integer.toHexString(encChr);
+            if (hexStr.length() < 2) {
+                encStr.append("0");
+            }
+            encStr.append(hexStr);
+
+            prandValue = prandValue.multiply(BigInteger.valueOf(mult)).add(BigInteger.valueOf(incr)).mod(BigInteger.valueOf(modu));
+        }
+
+        // 将 salt 转换为 16 进制并追加到加密结果
+        String saltHex = Long.toHexString(salt);
+        while (saltHex.length() < 8) {
+            saltHex = "0" + saltHex;
+        }
+        encStr.append(saltHex);
+
+        return encStr.toString();
+    }
+
+    public static void main(String[] args) {
+        // 示例
+        String encrypted = encrypt("HelloWorld", "password123");
+        System.out.println("Encrypted String: " + encrypted);
+    }
+
 }

parser/src/main/java/cn/qaiu/util/JsContent.java

@@ -149,4 +149,41 @@ public interface JsContent {
                         
             """;
 
+    String kwSignString = """
+            function encrypt(str, pwd) {
+                if (pwd == null || pwd.length <= 0) {
+                    return null;
+                }
+                var prand = "";
+                for (var i = 0; i < pwd.length; i++) {
+                    prand += pwd.charCodeAt(i).toString();
+                }
+                var sPos = Math.floor(prand.length / 5);
+                var mult = parseInt(prand.charAt(sPos) + prand.charAt(sPos * 2) + prand.charAt(sPos * 3) + prand.charAt(sPos * 4) + prand.charAt(sPos * 5));
+                var incr = Math.ceil(pwd.length / 2);
+                var modu = Math.pow(2, 31) - 1;
+                if (mult < 2) {
+                    return null;
+                }
+                var salt = Math.round(Math.random() * 1000000000) % 100000000;
+                prand += salt;
+                while (prand.length > 10) {
+                    prand = (parseInt(prand.substring(0, 10)) + parseInt(prand.substring(10, prand.length))).toString();
+                }
+                prand = (mult * prand + incr) % modu;
+                var enc_chr = "";
+                var enc_str = "";
+                for (var i = 0; i < str.length; i++) {
+                    enc_chr = parseInt(str.charCodeAt(i) ^ Math.floor((prand / modu) * 255));
+                    if (enc_chr < 16) {
+                        enc_str += "0" + enc_chr.toString(16);
+                    } else enc_str += enc_chr.toString(16);
+                    prand = (mult * prand + incr) % modu;
+                }
+                salt = salt.toString(16);
+                while (salt.length < 8) salt = "0" + salt;
+                enc_str += salt;
+                return enc_str;
+            }
+            """;
 }

parser/src/main/java/cn/qaiu/util/JsExecUtils.java

@@ -8,6 +8,8 @@ import javax.script.ScriptEngine;
 import javax.script.ScriptEngineManager;
 import javax.script.ScriptException;
 
+import static cn.qaiu.util.AESUtils.encrypt;
+
 /**
  * 执行Js脚本
  *
@@ -57,4 +59,40 @@ public class JsExecUtils {
     }
 
 
+    /**
+     * 调用执行蓝奏云js文件
+     */
+    public static Object executeOtherJs(String jsText, String funName, Object ... args) throws ScriptException,
+            NoSuchMethodException {
+        ScriptEngineManager engineManager = new ScriptEngineManager();
+        ScriptEngine engine = engineManager.getEngineByName("JavaScript"); // 得到脚本引擎
+        engine.eval(jsText);
+        Invocable inv = (Invocable) engine;
+        //调用js中的函数
+        if (StringUtils.isNotEmpty(funName)) {
+            return inv.invokeFunction(funName, args);
+        }
+        throw new ScriptException("funName is null");
+    }
+
+    public static String getKwSign(String s, String pwd) {
+        try {
+            return executeOtherJs(JsContent.kwSignString, "encrypt", s, pwd).toString();
+        } catch (ScriptException | NoSuchMethodException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static void main(String[] args) {
+        //encrypt("ZYcEEs2JdncXG8zAaytJiXxmbyhH2wxb", "Hm_Iuvt_cdb524f42f23cer9b268564v7y735ewrq2324")
+        //'7909e8e754545a61ba4bc3c90c82cb6c69b6859d5ea2e46a6bf913d1b4f11dee011dced1'
+        // 1e3170f1cc1ca75172409e443b89261ec777e190ebc595b458b8e114a912a9544d2b467323f8ca011b2ed0
+        // 93a44ef48949d950c91303c84d36
+        // 95dea502a45fb153f68d8da0bf8e4a095a001e396f60837e9c1b58a48969eb77038234d2
+        // 93c3750f6ccf9d11b5c304b32495
+        System.out.println(getKwSign("Hm_lvt_cdb524f42f0ce19b169a8071123a4797", "1729503755"));
+        System.out.println(getKwSign("HelloWorld", "password123"));
+
+    }
+
 }

parser/src/main/java/cn/qaiu/util/URLUtil.java

@@ -0,0 +1,40 @@
+package cn.qaiu.util;
+
+import java.net.URL;
+import java.net.URLDecoder;
+import java.util.HashMap;
+import java.util.Map;
+
+public class URLUtil {
+
+    private Map<String, String> queryParams = new HashMap<>();
+
+    // 构造函数，传入URL并解析参数
+    private URLUtil(String url) {
+        try {
+            URL parsedUrl = new URL(url);
+            String query = parsedUrl.getQuery();
+            if (query != null) {
+                String[] pairs = query.split("&");
+                for (String pair : pairs) {
+                    String[] keyValue = pair.split("=");
+                    String key = URLDecoder.decode(keyValue[0], "UTF-8");
+                    String value = keyValue.length > 1 ? URLDecoder.decode(keyValue[1], "UTF-8") : "";
+                    queryParams.put(key, value);
+                }
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    // 静态方法，用于创建UrlUtil实例
+    public static URLUtil from(String url) {
+        return new URLUtil(url);
+    }
+
+    // 获取参数的方法
+    public String getParam(String param) {
+        return queryParams.get(param);
+    }
+}