iPhone development: How to implement HTTPS connection?

Question

Hi all,

I am working on an iPhone project which need to connect to the IIS server over HTTPS or SSL protocol. Can anyone tell me how to implement HTTPS connection in iPhone? Any advice would be appreciate.

Thank you in advance.

Answer 1

Ben Copsey's ASIHTTPRequest framework makes it trivially easy to issue web requests over SSL.

Modifying the site's example slightly:

NSURL *url = [NSURL URLWithString:@"https://allseeing-i.com"];
ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
[request startSynchronous];
NSError *error = [request error];
if (!error) {
    NSString *response = [request responseString];
    NSLog (@"%@", response);
}

Answer 2

Just use NSURLConnection with an NSURLRequest pointing to an NUSUL with https protocol, just like that:

NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"https://mySecureServer.net"]];
NSURLResponse *response = nil;
NSError *error = nil;
NSData *result = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
if (!error) {
    //do something with response & data
}

But I suggest you have a look at the documentation of the URL loading system in Cocoa.

Answer 3

Hi Alex,

Thanks for your guide. I have tried like you mentioned above. But I got the Error:

Error Domain=ASIHTTPRequestErrorDomain Code=1 UserInfo=0xeb3ce0 "A connection failure occurred: SSL problem (possibly a bad/expired/self-signed certificate)"

Can you give me any more details on how to solve this issue?

Thanks Jason

Answer 4

Jason don't forget to implement the connection:canAuthenticateAgainsProtectionSpace and connection:didReceiveAuthenticationChallenge to make sure you're handling the challenges for the Server authentication and Client Authentication:

check out this post that will help you with this https://devforums.apple.com/message/143091#143091