Question

I got an app which use ASIHTTPRequest.

I recompiled my app with iOS 5 (sdk : 5.0 / xcode: 4.2 Build 4D199 ) and the https connections fail with error message (the same call with https disabled works fine):

Error Domain=ASIHTTPRequestErrorDomain Code=1 "A connection failure occurred" UserInfo=0xa8e66e0 {NSUnderlyingError=0xa8ac6c0 "The operation couldn’t be completed. (OSStatus error -9844.)", NSLocalizedDescription=A connection failure occurred}

With debug log enabled:

[STATUS] Starting asynchronous request <ASIFormDataRequest: 0xd96fc00>

[CONNECTION] Request <ASIFormDataRequest: 0xd96fc00> will not use a persistent connection

[STATUS] Request <ASIFormDataRequest: 0xd96fc00>: Failed

[CONNECTION] Request #(null) failed and will invalidate connection #(null)

I found this related post:
https://devforums.apple.com/message/537440#537440
which could explain my problem.

based on the idea that iOS 5 prefer TLS 1.2, I try changing the setting kCFStreamSocketSecurityLevelTLSv1 in AIHTTPRequest.m
           
       

  NSDictionary *sslProperties = [[NSDictionary alloc] initWithObjectsAndKeys:
                                     [NSNumber numberWithBool:YES],
kCFStreamSSLAllowsExpiredCertificates,
                                     [NSNumber numberWithBool:YES], kCFStreamSSLAllowsAnyRoot,
                                     [NSNumber numberWithBool:NO],  kCFStreamSSLValidatesCertificateChain,
                                     kCFNull,kCFStreamSSLPeerName,
                                      kCFStreamSocketSecurityLevelTLSv1, kCFStreamSSLLevel,// my modif
                                     nil];

with no success. Maybe my modification is incorrect?

Details:

• I got the ARC disabled
• I use libz.1.2.5.dylib
• I updated the ASIHTTPRequest a week ago.

I do not know if the issue is a certificate story (like TLS version) or something else.

any help/idea is welcome !

Answer 1

Here is the final solution:

https://developer.apple.com/library/ios/#technotes/tn2287/_index.html#//apple_ref/doc/uid/DTS40011309

        NSDictionary *sslProperties = [[NSDictionary alloc] initWithObjectsAndKeys:
                                       [NSNumber numberWithBool:YES], kCFStreamSSLAllowsExpiredCertificates,
                                       [NSNumber numberWithBool:YES], kCFStreamSSLAllowsAnyRoot,
                                       [NSNumber numberWithBool:NO],  kCFStreamSSLValidatesCertificateChain,
                                       kCFNull,kCFStreamSSLPeerName,
                                       @"kCFStreamSocketSecurityLevelTLSv1_0SSLv3", kCFStreamSSLLevel,
                                       nil];

Adding this param:

                                       @"kCFStreamSocketSecurityLevelTLSv1_0SSLv3", kCFStreamSSLLevel,