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| 1 | +package com.sqlmapwebui.burp; |
| 2 | + |
| 3 | +import burp.IExtensionHelpers; |
| 4 | +import burp.IHttpRequestResponse; |
| 5 | +import burp.IRequestInfo; |
| 6 | + |
| 7 | +import java.net.URL; |
| 8 | +import java.nio.charset.StandardCharsets; |
| 9 | +import java.security.MessageDigest; |
| 10 | +import java.security.NoSuchAlgorithmException; |
| 11 | +import java.util.*; |
| 12 | + |
| 13 | +/** |
| 14 | + * HTTP请求去重器 (Legacy API版本) |
| 15 | + * |
| 16 | + * 用于在批量发送扫描任务时自动过滤重复请求 |
| 17 | + * |
| 18 | + * 重复判断标准： |
| 19 | + * - 协议 (http/https) |
| 20 | + * - 请求方法 (GET/POST等) |
| 21 | + * - 主机 |
| 22 | + * - 端口 |
| 23 | + * - Path |
| 24 | + * - URL参数 (Query Parameters) |
| 25 | + * - Body参数 |
| 26 | + * |
| 27 | + * 以上所有条件都相同才认为是重复请求 |
| 28 | + * |
| 29 | + * @author SQLMap WebUI Team |
| 30 | + * @version 1.0.0 |
| 31 | + */ |
| 32 | +public class RequestDeduplicator { |
| 33 | + |
| 34 | + /** |
| 35 | + * 去重结果类 |
| 36 | + */ |
| 37 | + public static class DedupeResult { |
| 38 | + private final List<IHttpRequestResponse> uniqueMessages; |
| 39 | + private final List<IHttpRequestResponse> duplicateMessages; |
| 40 | + |
| 41 | + public DedupeResult(List<IHttpRequestResponse> uniqueMessages, |
| 42 | + List<IHttpRequestResponse> duplicateMessages) { |
| 43 | + this.uniqueMessages = uniqueMessages; |
| 44 | + this.duplicateMessages = duplicateMessages; |
| 45 | + } |
| 46 | + |
| 47 | + public List<IHttpRequestResponse> getUniqueMessages() { |
| 48 | + return uniqueMessages; |
| 49 | + } |
| 50 | + |
| 51 | + public List<IHttpRequestResponse> getDuplicateMessages() { |
| 52 | + return duplicateMessages; |
| 53 | + } |
| 54 | + |
| 55 | + public int uniqueCount() { |
| 56 | + return uniqueMessages.size(); |
| 57 | + } |
| 58 | + |
| 59 | + public int duplicateCount() { |
| 60 | + return duplicateMessages.size(); |
| 61 | + } |
| 62 | + |
| 63 | + public int totalCount() { |
| 64 | + return uniqueMessages.size() + duplicateMessages.size(); |
| 65 | + } |
| 66 | + |
| 67 | + public boolean hasDuplicates() { |
| 68 | + return !duplicateMessages.isEmpty(); |
| 69 | + } |
| 70 | + } |
| 71 | + |
| 72 | + /** |
| 73 | + * 对请求列表进行去重 |
| 74 | + * |
| 75 | + * @param messages 原始请求数组 |
| 76 | + * @param helpers Burp扩展帮助器 |
| 77 | + * @return 去重结果 |
| 78 | + */ |
| 79 | + public static DedupeResult deduplicate(IHttpRequestResponse[] messages, IExtensionHelpers helpers) { |
| 80 | + return deduplicate(Arrays.asList(messages), helpers); |
| 81 | + } |
| 82 | + |
| 83 | + /** |
| 84 | + * 对请求列表进行去重 |
| 85 | + * |
| 86 | + * @param messages 原始请求列表 |
| 87 | + * @param helpers Burp扩展帮助器 |
| 88 | + * @return 去重结果 |
| 89 | + */ |
| 90 | + public static DedupeResult deduplicate(List<IHttpRequestResponse> messages, IExtensionHelpers helpers) { |
| 91 | + List<IHttpRequestResponse> uniqueMessages = new ArrayList<>(); |
| 92 | + List<IHttpRequestResponse> duplicateMessages = new ArrayList<>(); |
| 93 | + Set<String> seenFingerprints = new HashSet<>(); |
| 94 | + |
| 95 | + for (IHttpRequestResponse message : messages) { |
| 96 | + String fingerprint = generateFingerprint(message, helpers); |
| 97 | + |
| 98 | + if (seenFingerprints.contains(fingerprint)) { |
| 99 | + duplicateMessages.add(message); |
| 100 | + } else { |
| 101 | + seenFingerprints.add(fingerprint); |
| 102 | + uniqueMessages.add(message); |
| 103 | + } |
| 104 | + } |
| 105 | + |
| 106 | + return new DedupeResult(uniqueMessages, duplicateMessages); |
| 107 | + } |
| 108 | + |
| 109 | + /** |
| 110 | + * 生成请求的唯一指纹 |
| 111 | + * |
| 112 | + * 指纹包含：协议、方法、主机、端口、路径、查询参数、请求体 |
| 113 | + */ |
| 114 | + public static String generateFingerprint(IHttpRequestResponse requestResponse, IExtensionHelpers helpers) { |
| 115 | + StringBuilder sb = new StringBuilder(); |
| 116 | + |
| 117 | + try { |
| 118 | + byte[] request = requestResponse.getRequest(); |
| 119 | + IRequestInfo requestInfo = helpers.analyzeRequest(requestResponse); |
| 120 | + URL url = requestInfo.getUrl(); |
| 121 | + |
| 122 | + // 1. 协议 |
| 123 | + String protocol = url.getProtocol().toLowerCase(); |
| 124 | + sb.append("protocol:").append(protocol).append("|"); |
| 125 | + |
| 126 | + // 2. 请求方法 |
| 127 | + String method = requestInfo.getMethod().toUpperCase(); |
| 128 | + sb.append("method:").append(method).append("|"); |
| 129 | + |
| 130 | + // 3. 主机 |
| 131 | + String host = url.getHost().toLowerCase(); |
| 132 | + sb.append("host:").append(host).append("|"); |
| 133 | + |
| 134 | + // 4. 端口 (处理默认端口) |
| 135 | + int port = url.getPort(); |
| 136 | + if (port == -1) { |
| 137 | + port = "https".equals(protocol) ? 443 : 80; |
| 138 | + } |
| 139 | + sb.append("port:").append(port).append("|"); |
| 140 | + |
| 141 | + // 5. Path |
| 142 | + String path = url.getPath(); |
| 143 | + if (path == null || path.isEmpty()) { |
| 144 | + path = "/"; |
| 145 | + } |
| 146 | + sb.append("path:").append(path).append("|"); |
| 147 | + |
| 148 | + // 6. 查询参数 (排序后比较，忽略顺序) |
| 149 | + String query = url.getQuery(); |
| 150 | + String normalizedQuery = normalizeQueryParams(query); |
| 151 | + sb.append("query:").append(normalizedQuery).append("|"); |
| 152 | + |
| 153 | + // 7. Body参数 (对于POST/PUT等) |
| 154 | + int bodyOffset = requestInfo.getBodyOffset(); |
| 155 | + String body = ""; |
| 156 | + if (bodyOffset < request.length) { |
| 157 | + body = new String(request, bodyOffset, request.length - bodyOffset); |
| 158 | + } |
| 159 | + String normalizedBody = normalizeBody(body, getContentType(requestInfo)); |
| 160 | + sb.append("body:").append(normalizedBody); |
| 161 | + |
| 162 | + } catch (Exception e) { |
| 163 | + // 如果解析失败，使用原始请求的hash |
| 164 | + byte[] request = requestResponse.getRequest(); |
| 165 | + sb.append("raw:").append(new String(request)); |
| 166 | + } |
| 167 | + |
| 168 | + // 生成MD5哈希作为指纹 |
| 169 | + return md5Hash(sb.toString()); |
| 170 | + } |
| 171 | + |
| 172 | + /** |
| 173 | + * 规范化查询参数 (排序，忽略顺序差异) |
| 174 | + */ |
| 175 | + private static String normalizeQueryParams(String query) { |
| 176 | + if (query == null || query.isEmpty()) { |
| 177 | + return ""; |
| 178 | + } |
| 179 | + |
| 180 | + try { |
| 181 | + Map<String, List<String>> params = new TreeMap<>(); |
| 182 | + String[] pairs = query.split("&"); |
| 183 | + |
| 184 | + for (String pair : pairs) { |
| 185 | + int idx = pair.indexOf("="); |
| 186 | + String key = idx > 0 ? pair.substring(0, idx) : pair; |
| 187 | + String value = idx > 0 && pair.length() > idx + 1 ? pair.substring(idx + 1) : ""; |
| 188 | + |
| 189 | + params.computeIfAbsent(key, k -> new ArrayList<>()).add(value); |
| 190 | + } |
| 191 | + |
| 192 | + // 对每个key的values也排序 |
| 193 | + StringBuilder result = new StringBuilder(); |
| 194 | + for (Map.Entry<String, List<String>> entry : params.entrySet()) { |
| 195 | + Collections.sort(entry.getValue()); |
| 196 | + for (String value : entry.getValue()) { |
| 197 | + if (result.length() > 0) { |
| 198 | + result.append("&"); |
| 199 | + } |
| 200 | + result.append(entry.getKey()).append("=").append(value); |
| 201 | + } |
| 202 | + } |
| 203 | + |
| 204 | + return result.toString(); |
| 205 | + |
| 206 | + } catch (Exception e) { |
| 207 | + return query; |
| 208 | + } |
| 209 | + } |
| 210 | + |
| 211 | + /** |
| 212 | + * 规范化请求体 |
| 213 | + */ |
| 214 | + private static String normalizeBody(String body, String contentType) { |
| 215 | + if (body == null || body.isEmpty()) { |
| 216 | + return ""; |
| 217 | + } |
| 218 | + |
| 219 | + // 对于form-urlencoded，进行参数排序 |
| 220 | + if (contentType != null && contentType.contains("application/x-www-form-urlencoded")) { |
| 221 | + return normalizeQueryParams(body); |
| 222 | + } |
| 223 | + |
| 224 | + // 对于JSON，直接使用原始内容（或可以解析后规范化） |
| 225 | + // 这里简化处理，直接返回trim后的body |
| 226 | + return body.trim(); |
| 227 | + } |
| 228 | + |
| 229 | + /** |
| 230 | + * 获取Content-Type |
| 231 | + */ |
| 232 | + private static String getContentType(IRequestInfo requestInfo) { |
| 233 | + List<String> headers = requestInfo.getHeaders(); |
| 234 | + for (String header : headers) { |
| 235 | + if (header.toLowerCase().startsWith("content-type:")) { |
| 236 | + return header.substring("content-type:".length()).trim().toLowerCase(); |
| 237 | + } |
| 238 | + } |
| 239 | + return ""; |
| 240 | + } |
| 241 | + |
| 242 | + /** |
| 243 | + * 生成MD5哈希 |
| 244 | + */ |
| 245 | + private static String md5Hash(String input) { |
| 246 | + try { |
| 247 | + MessageDigest md = MessageDigest.getInstance("MD5"); |
| 248 | + byte[] digest = md.digest(input.getBytes(StandardCharsets.UTF_8)); |
| 249 | + StringBuilder sb = new StringBuilder(); |
| 250 | + for (byte b : digest) { |
| 251 | + sb.append(String.format("%02x", b)); |
| 252 | + } |
| 253 | + return sb.toString(); |
| 254 | + } catch (NoSuchAlgorithmException e) { |
| 255 | + // 降级方案：使用Java hashCode |
| 256 | + return String.valueOf(input.hashCode()); |
| 257 | + } |
| 258 | + } |
| 259 | + |
| 260 | + /** |
| 261 | + * 获取请求的简短描述（用于日志） |
| 262 | + */ |
| 263 | + public static String getRequestDescription(IHttpRequestResponse requestResponse, IExtensionHelpers helpers) { |
| 264 | + try { |
| 265 | + IRequestInfo requestInfo = helpers.analyzeRequest(requestResponse); |
| 266 | + URL url = requestInfo.getUrl(); |
| 267 | + return requestInfo.getMethod() + " " + url.getHost() + url.getPath(); |
| 268 | + } catch (Exception e) { |
| 269 | + return "Unknown Request"; |
| 270 | + } |
| 271 | + } |
| 272 | +} |
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