feat: sync httpdns sdk/platform updates without large binaries

HttpDNSSDK/sdk/ios/NewHttpDNSTests/Network/HttpdnsNWHTTPClientTestHelper.m

@@ -0,0 +1,168 @@
+//
+//  HttpdnsNWHTTPClientTestHelper.m
+//  TrustHttpDNSTests
+//
+//  @author Created by Claude Code on 2025-11-01
+//  Copyright © 2025 trustapp.com. All rights reserved.
+//
+
+#import "HttpdnsNWHTTPClientTestHelper.h"
+
+@implementation HttpdnsNWHTTPClientTestHelper
+
+#pragma mark - HTTP 响应数据构<EFBFBD><EFBFBD>?
+
++ (NSData *)createHTTPResponseWithStatus:(NSInteger)statusCode
+                              statusText:(NSString *)statusText
+                                 headers:(nullable NSDictionary<NSString *, NSString *> *)headers
+                                    body:(nullable NSData *)body {
+    NSMutableString *response = [NSMutableString string];
+
+    // 状态行
+    [response appendFormat:@"HTTP/1.1 %ld %@\r\n", (long)statusCode, statusText ?: @"OK"];
+
+    // 头部
+    if (headers) {
+        for (NSString *key in headers) {
+            [response appendFormat:@"%@: %@\r\n", key, headers[key]];
+        }
+    }
+
+    // 如果<EFBFBD><EFBFBD>?body 但没<EFBFBD><EFBFBD>?Content-Length，自动添<EFBFBD><EFBFBD>?
+    if (body && body.length > 0 && !headers[@"Content-Length"]) {
+        [response appendFormat:@"Content-Length: %lu\r\n", (unsigned long)body.length];
+    }
+
+    // 空行分隔头部<EFBFBD><EFBFBD>?body
+    [response appendString:@"\r\n"];
+
+    NSMutableData *responseData = [[response dataUsingEncoding:NSUTF8StringEncoding] mutableCopy];
+
+    // 添加 body
+    if (body) {
+        [responseData appendData:body];
+    }
+
+    return [responseData copy];
+}
+
++ (NSData *)createChunkedHTTPResponseWithStatus:(NSInteger)statusCode
+                                        headers:(nullable NSDictionary<NSString *, NSString *> *)headers
+                                         chunks:(NSArray<NSData *> *)chunks {
+    return [self createChunkedHTTPResponseWithStatus:statusCode
+                                             headers:headers
+                                              chunks:chunks
+                                            trailers:nil];
+}
+
++ (NSData *)createChunkedHTTPResponseWithStatus:(NSInteger)statusCode
+                                        headers:(nullable NSDictionary<NSString *, NSString *> *)headers
+                                         chunks:(NSArray<NSData *> *)chunks
+                                       trailers:(nullable NSDictionary<NSString *, NSString *> *)trailers {
+    NSMutableString *response = [NSMutableString string];
+
+    // 状态行
+    [response appendFormat:@"HTTP/1.1 %ld OK\r\n", (long)statusCode];
+
+    // 头部
+    if (headers) {
+        for (NSString *key in headers) {
+            [response appendFormat:@"%@: %@\r\n", key, headers[key]];
+        }
+    }
+
+    // Transfer-Encoding 头部
+    [response appendString:@"Transfer-Encoding: chunked\r\n"];
+
+    // 空行
+    [response appendString:@"\r\n"];
+
+    NSMutableData *responseData = [[response dataUsingEncoding:NSUTF8StringEncoding] mutableCopy];
+
+    // 添加每个 chunk
+    for (NSData *chunk in chunks) {
+        [responseData appendData:[self encodeChunk:chunk]];
+    }
+
+    // 添加终止 chunk
+    if (trailers) {
+        [responseData appendData:[self encodeLastChunkWithTrailers:trailers]];
+    } else {
+        [responseData appendData:[self encodeLastChunk]];
+    }
+
+    return [responseData copy];
+}
+
+#pragma mark - Chunked 编码工具
+
++ (NSData *)encodeChunk:(NSData *)data {
+    return [self encodeChunk:data extension:nil];
+}
+
++ (NSData *)encodeChunk:(NSData *)data extension:(nullable NSString *)extension {
+    NSMutableString *chunkString = [NSMutableString string];
+
+    // Chunk size（十六进制）
+    if (extension) {
+        [chunkString appendFormat:@"%lx;%@\r\n", (unsigned long)data.length, extension];
+    } else {
+        [chunkString appendFormat:@"%lx\r\n", (unsigned long)data.length];
+    }
+
+    NSMutableData *chunkData = [[chunkString dataUsingEncoding:NSUTF8StringEncoding] mutableCopy];
+
+    // Chunk data
+    [chunkData appendData:data];
+
+    // CRLF
+    [chunkData appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
+
+    return [chunkData copy];
+}
+
++ (NSData *)encodeLastChunk {
+    return [@"0\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding];
+}
+
++ (NSData *)encodeLastChunkWithTrailers:(NSDictionary<NSString *, NSString *> *)trailers {
+    NSMutableString *lastChunkString = [NSMutableString stringWithString:@"0\r\n"];
+
+    // 添加 trailer 头部
+    for (NSString *key in trailers) {
+        [lastChunkString appendFormat:@"%@: %@\r\n", key, trailers[key]];
+    }
+
+    // 空行终止
+    [lastChunkString appendString:@"\r\n"];
+
+    return [lastChunkString dataUsingEncoding:NSUTF8StringEncoding];
+}
+
+#pragma mark - 测试数据生成
+
++ (NSData *)randomDataWithSize:(NSUInteger)size {
+    NSMutableData *data = [NSMutableData dataWithLength:size];
+    if (SecRandomCopyBytes(kSecRandomDefault, size, data.mutableBytes) != 0) {
+        // 如果 SecRandom 失败，使用简单的随机<EFBFBD><EFBFBD>?
+        uint8_t *bytes = data.mutableBytes;
+        for (NSUInteger i = 0; i < size; i++) {
+            bytes[i] = arc4random_uniform(256);
+        }
+    }
+    return [data copy];
+}
+
++ (NSData *)jsonBodyWithDictionary:(NSDictionary *)dictionary {
+    NSError *error = nil;
+    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dictionary
+                                                       options:0
+                                                         error:&error];
+    if (error) {
+        NSLog(@"JSON serialization error: %@", error);
+        return nil;
+    }
+    return jsonData;
+}
+
+@end