SO逆向入门实战教程六（s） java

package com.lession6;
import java.nio.charset.StandardCharsets;
import java.util.Map;
import java.util.SortedMap;
import java.util.TreeMap;
public class utils {

private static final char[] f14934c = "0123456789ABCDEF".toCharArray(); public static final String KEY_VALUE_DELIMITER = "="; public static final String FIELD_DELIMITER = "&"; private static boolean a(char c2, String str) { return (c2 >= 'A' && c2 <= 'Z') || (c2 >= 'a' && c2 <= 'z') || !((c2 < '0' || c2 > '9') && "-_.~".indexOf(c2) == -1 && (str == null || str.indexOf(c2) == -1)); } static String r(Map map) { String str; if (!(map instanceof SortedMap)) { map = new TreeMap(map); } StringBuilder sb = new StringBuilder(256); for (Map.Entry entry : map.entrySet()) { String key = entry.getKey(); if (!key.isEmpty()) { sb.append(b(key)); sb.append(KEY_VALUE_DELIMITER); String value = https://www.it610.com/article/entry.getValue(); if (value == null) { str =""; } else { str = b(value); } sb.append(str); sb.append(FIELD_DELIMITER); } } int length = sb.length(); if (length > 0) { sb.deleteCharAt(length - 1); } if (length == 0) { return null; } return sb.toString(); } static String b(String str) { return c(str, null); } static String c(String str, String str2) { StringBuilder sb = null; if (str == null) { return null; } int length = str.length(); int i2 = 0; while (i2 < length) { int i3 = i2; while (i3 [期货](https://www.gendan5.com/futures.html)< length && a(str.charAt(i3), str2)) { i3++; } if (i3 != length) { if (sb == null) { sb = new StringBuilder(); } if (i3 > i2) { sb.append((CharSequence) str, i2, i3); } i2 = i3 + 1; while (i2 < length && !a(str.charAt(i2), str2)) { i2++; } byte[] bytes = str.substring(i3, i2).getBytes(StandardCharsets.UTF_8); int length2 = bytes.length; for (int i4 = 0; i4 < length2; i4++) { sb.append('%'); sb.append(f14934c[(bytes[i4] & 240) >> 4]); sb.append(f14934c[bytes[i4] & 15]); } } else if (i2 == 0) { return str; } else { sb.append((CharSequence) str, i2, length); return sb.toString(); } } return sb == null ? str : sb.toString(); }

【SO逆向入门实战教程六（s）】}
补其实现

@Override public DvmObject callStaticObjectMethod(BaseVM vm, DvmClass dvmClass, String signature, VarArg varArg) { switch (signature){ case "com/bilibili/nativelibrary/SignedQuery->r(Ljava/util/Map; )Ljava/lang/String; ":{ DvmObject mapObject = varArg.getObjectArg(0); TreeMap mymap = (TreeMap) mapObject.getValue(); String result = utils.r(mymap); return new StringObject(vm, result); } } return super.callStaticObjectMethod(vm, dvmClass, signature, varArg); }