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ios test

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This commit is contained in:
robin
2026-03-05 02:44:43 +08:00
parent 49021c7415
commit 49776c3d0a
41 changed files with 432 additions and 297 deletions
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94
HttpDNSSDK/sdk/ios/NewHttpDNS/Network/HttpdnsNWHTTPClient.m
View File

@@ -81,7 +81,7 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
- (instancetype)init {
self = [super init];
if (self) {
_poolQueue = dispatch_queue_create("com.Trust.sdk.httpdns.network.pool", DISPATCH_QUEUE_SERIAL);
_poolQueue = dispatch_queue_create("com.New.sdk.httpdns.network.pool", DISPATCH_QUEUE_SERIAL);
_connectionPool = [NSMutableDictionary dictionary];
}
return self;
@@ -95,8 +95,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
NSURL *url = [NSURL URLWithString:urlString];
if (!url) {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTPDNS_HTTPS_COMMON_ERROR_CODE
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTPDNS_HTTPS_COMMON_ERROR_CODE
userInfo:@{NSLocalizedDescriptionKey: @"Invalid resolve URL"}];
}
return nil;
@@ -107,8 +107,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
NSString *host = url.host;
if (![HttpdnsUtil isNotEmptyString:host]) {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTPDNS_HTTPS_COMMON_ERROR_CODE
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTPDNS_HTTPS_COMMON_ERROR_CODE
userInfo:@{NSLocalizedDescriptionKey: @"Missing host in resolve URL"}];
}
return nil;
@@ -121,8 +121,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
NSData *requestData = [requestString dataUsingEncoding:NSUTF8StringEncoding];
if (!requestData) {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTP_PARSE_JSON_FAILED
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTP_PARSE_JSON_FAILED
userInfo:@{NSLocalizedDescriptionKey: @"Failed to encode HTTP request"}];
}
return nil;
@@ -136,8 +136,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
error:&connectionError];
if (!connection) {
if (error) {
*error = connectionError ?: [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTPDNS_HTTPS_COMMON_ERROR_CODE
*error = connectionError ?: [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTPDNS_HTTPS_COMMON_ERROR_CODE
userInfo:@{NSLocalizedDescriptionKey: @"Unable to obtain network connection"}];
}
return nil;
@@ -154,8 +154,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
if (!rawResponse) {
[self returnConnection:connection forKey:poolKey shouldClose:YES];
if (error) {
*error = exchangeError ?: [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTPDNS_HTTPS_COMMON_ERROR_CODE
*error = exchangeError ?: [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTPDNS_HTTPS_COMMON_ERROR_CODE
userInfo:@{NSLocalizedDescriptionKey: @"Network request failed"}];
}
return nil;
@@ -168,8 +168,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
if (![self parseHTTPResponseData:rawResponse statusCode:&statusCode headers:&headers body:&bodyData error:&parseError]) {
[self returnConnection:connection forKey:poolKey shouldClose:YES];
if (error) {
*error = parseError ?: [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTP_PARSE_JSON_FAILED
*error = parseError ?: [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTP_PARSE_JSON_FAILED
userInfo:@{NSLocalizedDescriptionKey: @"Failed to parse HTTP response"}];
}
return nil;
@@ -239,8 +239,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
useTLS:useTLS];
if (!newConnection) {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTPDNS_HTTPS_COMMON_ERROR_CODE
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTPDNS_HTTPS_COMMON_ERROR_CODE
userInfo:@{NSLocalizedDescriptionKey: @"Failed to create network connection"}];
}
return nil;
@@ -409,8 +409,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
NSString *headerString = [[NSString alloc] initWithData:headerData encoding:NSUTF8StringEncoding];
if (![HttpdnsUtil isNotEmptyString:headerString]) {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTP_PARSE_JSON_FAILED
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTP_PARSE_JSON_FAILED
userInfo:@{NSLocalizedDescriptionKey: @"Failed to decode HTTP headers"}];
}
return HttpdnsHTTPHeaderParseResultError;
@@ -419,8 +419,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
NSArray<NSString *> *lines = [headerString componentsSeparatedByString:@"\r\n"];
if (lines.count == 0) {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTP_PARSE_JSON_FAILED
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTP_PARSE_JSON_FAILED
userInfo:@{NSLocalizedDescriptionKey: @"Missing HTTP status line"}];
}
return HttpdnsHTTPHeaderParseResultError;
@@ -437,8 +437,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
if (filteredParts.count < 2) {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTP_PARSE_JSON_FAILED
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTP_PARSE_JSON_FAILED
userInfo:@{NSLocalizedDescriptionKey: @"Invalid HTTP status line"}];
}
return HttpdnsHTTPHeaderParseResultError;
@@ -447,8 +447,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
NSInteger localStatus = [filteredParts[1] integerValue];
if (localStatus <= 0) {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTP_PARSE_JSON_FAILED
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTP_PARSE_JSON_FAILED
userInfo:@{NSLocalizedDescriptionKey: @"Invalid HTTP status code"}];
}
return HttpdnsHTTPHeaderParseResultError;
@@ -510,8 +510,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
NSString *sizeString = [[NSString alloc] initWithData:sizeData encoding:NSUTF8StringEncoding];
if (![HttpdnsUtil isNotEmptyString:sizeString]) {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTP_PARSE_JSON_FAILED
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTP_PARSE_JSON_FAILED
userInfo:@{NSLocalizedDescriptionKey: @"Invalid chunk size"}];
}
return HttpdnsHTTPChunkParseResultError;
@@ -524,8 +524,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
unsigned long long chunkSize = strtoull(cStr, &endPtr, 16);
if (endPtr == NULL || endPtr == cStr) {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTP_PARSE_JSON_FAILED
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTP_PARSE_JSON_FAILED
userInfo:@{NSLocalizedDescriptionKey: @"Invalid chunk size"}];
}
return HttpdnsHTTPChunkParseResultError;
@@ -533,8 +533,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
if (chunkSize > NSUIntegerMax - cursor) {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTP_PARSE_JSON_FAILED
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTP_PARSE_JSON_FAILED
userInfo:@{NSLocalizedDescriptionKey: @"Chunk size overflow"}];
}
return HttpdnsHTTPChunkParseResultError;
@@ -570,8 +570,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
}
if (bytes[cursor] != '\r' || bytes[cursor + 1] != '\n') {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTP_PARSE_JSON_FAILED
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTP_PARSE_JSON_FAILED
userInfo:@{NSLocalizedDescriptionKey: @"Invalid chunk terminator"}];
}
return HttpdnsHTTPChunkParseResultError;
@@ -589,8 +589,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
error:(NSError **)error {
if (!data || data.length == 0) {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTP_PARSE_JSON_FAILED
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTP_PARSE_JSON_FAILED
userInfo:@{NSLocalizedDescriptionKey: @"Empty HTTP response"}];
}
return NO;
@@ -608,8 +608,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
if (headerResult != HttpdnsHTTPHeaderParseResultSuccess) {
if (error) {
if (headerResult == HttpdnsHTTPHeaderParseResultIncomplete) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTP_PARSE_JSON_FAILED
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTP_PARSE_JSON_FAILED
userInfo:@{NSLocalizedDescriptionKey: @"Missing HTTP header terminator"}];
} else {
*error = headerError;
@@ -670,8 +670,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
}
if (lineEnd + 1 >= length) {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTP_PARSE_JSON_FAILED
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTP_PARSE_JSON_FAILED
userInfo:@{NSLocalizedDescriptionKey: @"Invalid chunked encoding"}];
}
return nil;
@@ -681,8 +681,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
NSString *sizeString = [[NSString alloc] initWithData:sizeData encoding:NSUTF8StringEncoding];
if (![HttpdnsUtil isNotEmptyString:sizeString]) {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTP_PARSE_JSON_FAILED
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTP_PARSE_JSON_FAILED
userInfo:@{NSLocalizedDescriptionKey: @"Invalid chunk size"}];
}
return nil;
@@ -695,8 +695,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
// 检查是否是无效的十六进制字符串
if (endPtr == cStr) {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTP_PARSE_JSON_FAILED
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTP_PARSE_JSON_FAILED
userInfo:@{NSLocalizedDescriptionKey: @"Invalid chunk size format"}];
}
return nil;
@@ -710,8 +710,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
}
if (cursor + chunkSize > length) {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTP_PARSE_JSON_FAILED
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTP_PARSE_JSON_FAILED
userInfo:@{NSLocalizedDescriptionKey: @"Chunk size exceeds buffer"}];
}
return nil;
@@ -720,8 +720,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
cursor += chunkSize;
if (cursor + 1 >= length || bytes[cursor] != '\r' || bytes[cursor + 1] != '\n') {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTP_PARSE_JSON_FAILED
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTP_PARSE_JSON_FAILED
userInfo:@{NSLocalizedDescriptionKey: @"Invalid chunk terminator"}];
}
return nil;
@@ -777,8 +777,8 @@ static const NSTimeInterval kHttpdnsNWHTTPClientDefaultTimeout = 10.0;
if (!userInfo[NSLocalizedDescriptionKey]) {
userInfo[NSLocalizedDescriptionKey] = @"Network operation failed";
}
return [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTPDNS_HTTPS_COMMON_ERROR_CODE
return [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTPDNS_HTTPS_COMMON_ERROR_CODE
userInfo:userInfo];
}

48
HttpDNSSDK/sdk/ios/NewHttpDNS/Network/HttpdnsNWReusableConnection.m
View File

@@ -99,7 +99,7 @@
_host = [host copy];
_port = [port copy];
_useTLS = useTLS;
_queue = dispatch_queue_create("com.Trust.sdk.httpdns.network.connection.reuse", DISPATCH_QUEUE_SERIAL);
_queue = dispatch_queue_create("com.New.sdk.httpdns.network.connection.reuse", DISPATCH_QUEUE_SERIAL);
_stateSemaphore = dispatch_semaphore_create(0);
_state = nw_connection_state_invalid;
_lastUsedDate = [NSDate date];
@@ -135,14 +135,14 @@
if (secTrust && strongSelf) {
SecTrustRef trustRef = sec_trust_copy_ref(secTrust);
if (trustRef) {
NSString *validIP = Trust_HTTPDNS_VALID_SERVER_CERTIFICATE_IP;
NSString *validIP = NEW_HTTPDNS_VALID_SERVER_CERTIFICATE_IP;
isValid = [strongSelf.client evaluateServerTrust:trustRef forDomain:validIP];
if (!isValid && [HttpdnsUtil isNotEmptyString:strongSelf.host]) {
isValid = [strongSelf.client evaluateServerTrust:trustRef forDomain:strongSelf.host];
}
if (!isValid && !strongSelf.stateError) {
strongSelf.stateError = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTPDNS_HTTPS_COMMON_ERROR_CODE
strongSelf.stateError = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTPDNS_HTTPS_COMMON_ERROR_CODE
userInfo:@{NSLocalizedDescriptionKey: @"TLS trust validation failed"}];
}
CFRelease(trustRef);
@@ -220,8 +220,8 @@
- (BOOL)openWithTimeout:(NSTimeInterval)timeout error:(NSError **)error {
if (self.invalidated) {
if (error) {
*error = _stateError ?: [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTPDNS_HTTPS_COMMON_ERROR_CODE
*error = _stateError ?: [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTPDNS_HTTPS_COMMON_ERROR_CODE
userInfo:@{NSLocalizedDescriptionKey: @"Connection invalid"}];
}
return NO;
@@ -237,8 +237,8 @@
if (waitResult != 0) {
self.invalidated = YES;
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTPDNS_HTTPS_COMMON_ERROR_CODE
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTPDNS_HTTPS_COMMON_ERROR_CODE
userInfo:@{NSLocalizedDescriptionKey: @"Connection setup timed out"}];
}
nw_connection_cancel(_connectionHandle);
@@ -250,8 +250,8 @@
}
if (error) {
*error = _stateError ?: [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTPDNS_HTTPS_COMMON_ERROR_CODE
*error = _stateError ?: [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTPDNS_HTTPS_COMMON_ERROR_CODE
userInfo:@{NSLocalizedDescriptionKey: @"Connection failed to become ready"}];
}
return NO;
@@ -277,8 +277,8 @@
error:(NSError **)error {
if (!requestData || requestData.length == 0) {
if (error) {
*error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTPDNS_HTTPS_COMMON_ERROR_CODE
*error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTPDNS_HTTPS_COMMON_ERROR_CODE
userInfo:@{NSLocalizedDescriptionKey: @"Empty HTTP request"}];
}
return nil;
@@ -286,8 +286,8 @@
if (![self isViable] || self.currentExchange) {
if (error) {
*error = _stateError ?: [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTPDNS_HTTPS_COMMON_ERROR_CODE
*error = _stateError ?: [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTPDNS_HTTPS_COMMON_ERROR_CODE
userInfo:@{NSLocalizedDescriptionKey: @"Connection not ready"}];
}
return nil;
@@ -299,16 +299,16 @@
dispatch_sync(_queue, ^{
__strong typeof(weakSelf) strongSelf = weakSelf;
if (!strongSelf) {
exchange.error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTPDNS_HTTPS_COMMON_ERROR_CODE
exchange.error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTPDNS_HTTPS_COMMON_ERROR_CODE
userInfo:@{NSLocalizedDescriptionKey: @"Connection released unexpectedly"}];
exchange.finished = YES;
dispatch_semaphore_signal(exchange.semaphore);
return;
}
if (strongSelf.invalidated || strongSelf.currentExchange) {
exchange.error = strongSelf.stateError ?: [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTPDNS_HTTPS_COMMON_ERROR_CODE
exchange.error = strongSelf.stateError ?: [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTPDNS_HTTPS_COMMON_ERROR_CODE
userInfo:@{NSLocalizedDescriptionKey: @"Connection is busy"}];
exchange.finished = YES;
dispatch_semaphore_signal(exchange.semaphore);
@@ -320,8 +320,8 @@
if (exchange.finished) {
return;
}
exchange.error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTPDNS_HTTPS_COMMON_ERROR_CODE
exchange.error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTPDNS_HTTPS_COMMON_ERROR_CODE
userInfo:@{NSLocalizedDescriptionKey: @"Request timed out"}];
exchange.finished = YES;
dispatch_semaphore_signal(exchange.semaphore);
@@ -366,8 +366,8 @@
if (waitResult != 0) {
if (!exchange.error) {
exchange.error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTPDNS_HTTPS_COMMON_ERROR_CODE
exchange.error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTPDNS_HTTPS_COMMON_ERROR_CODE
userInfo:@{NSLocalizedDescriptionKey: @"Request wait timed out"}];
}
[self invalidate];
@@ -428,8 +428,8 @@
if (is_complete) {
exchange.remoteClosed = YES;
if (!exchange.finished) {
exchange.error = [NSError errorWithDomain:Trust_HTTPDNS_ERROR_DOMAIN
code:Trust_HTTPDNS_HTTPS_COMMON_ERROR_CODE
exchange.error = [NSError errorWithDomain:NEW_HTTPDNS_ERROR_DOMAIN
code:NEW_HTTPDNS_HTTPS_COMMON_ERROR_CODE
userInfo:@{NSLocalizedDescriptionKey: @"Connection closed before response completed"}];
exchange.finished = YES;
dispatch_semaphore_signal(exchange.semaphore);