ASIHTTPRequestErrorDomain代码1

在我的应用程序中，我试图连接到IIS服务器来访问一些服务器。 当我在iOS 4或更早版本中运行应用程序时，连接工作正常，但是当我在iOS 5中运行时，连接返回此错误：

Error Domain=ASIHTTPRequestErrorDomain Code=1 "A connection failure occurred" UserInfo=0x6b601d0 {NSUnderlyingError=0x6b5fe20 "The operation couldn't be completed. (OSStatus error -9836.)", NSLocalizedDescription=A connection failure occurred} 

这是我所调用的代码：

 self.currentRequest = [ASIHTTPRequest requestWithURL:url]; [self.currentRequest setValidatesSecureCertificate:NO]; [self.currentRequest setDelegate:self]; [self.currentRequest setUsername:credentials.login]; [self.currentRequest setPassword:credentials.password]; [self.currentRequest setDomain:@"CORP"]; [self.currentRequest setUseHTTPVersionOne:YES]; [self.currentRequest setTimeOutSeconds:120]; [self.currentRequest startAsynchronous]; 

有人有一个想法，为什么发生这种情况？

Answer 1

-9836是一个错误的协议错误。 这可能是由于iOS 5的TLS升级到TLS 1.2。 如果服务器不支持TLS 1.2，则可能会终止握手，并且无法降级到支持的协议级别。

在ASIHTTPRequest.m中更改为 – （void）startRequest中的以下内容

 // // Handle SSL certificate settings // if([[[[self url] scheme] lowercaseString] isEqualToString:@"https"]) { NSDictionary *sslProperties = [[NSDictionary alloc] initWithObjectsAndKeys: @"kCFStreamSocketSecurityLevelTLSv1_0SSLv3", (NSString *)kCFStreamSSLLevel, nil]; CFReadStreamSetProperty((CFReadStreamRef)[self readStream], kCFStreamPropertySSLSettings, (CFTypeRef)sslProperties); // Tell CFNetwork not to validate SSL certificates if (![self validatesSecureCertificate]) { // see: http://iphonedevelopment.blogspot.com/2010/05/nsstream-tcp-and-ssl.html NSDictionary *sslProperties = [[NSDictionary alloc] initWithObjectsAndKeys: [NSNumber numberWithBool:YES], kCFStreamSSLAllowsExpiredCertificates, [NSNumber numberWithBool:YES], kCFStreamSSLAllowsAnyRoot, [NSNumber numberWithBool:NO], kCFStreamSSLValidatesCertificateChain, kCFNull,kCFStreamSSLPeerName, @"kCFStreamSocketSecurityLevelTLSv1_0SSLv3", (NSString *)kCFStreamSSLLevel, nil]; CFReadStreamSetProperty((CFReadStreamRef)[self readStream], kCFStreamPropertySSLSettings, (CFTypeRef)sslProperties); } // Tell CFNetwork to use a client certificate if (clientCertificateIdentity) { NSMutableDictionary *sslProperties = [NSMutableDictionary dictionaryWithCapacity:2]; NSMutableArray *certificates = [NSMutableArray arrayWithCapacity:[clientCertificates count]+1]; // The first object in the array is our SecIdentityRef [certificates addObject:(id)clientCertificateIdentity]; // If we've added any additional certificates, add them too for (id cert in clientCertificates) { [certificates addObject:cert]; } [sslProperties setObject:certificates forKey:(NSString *)kCFStreamSSLCertificates]; [sslProperties setObject:@"kCFStreamSocketSecurityLevelTLSv1_0SSLv3" forKey:(NSString *)kCFStreamSSLLevel]; CFReadStreamSetProperty((CFReadStreamRef)[self readStream], kCFStreamPropertySSLSettings, sslProperties); } }