SPDY for iOS with AFNetworking

Question

I'm trying SPDY for iOS app, which currently uses AFNetworking (2.1.0) to handle HTTP requests. Server side, I'm using Google App Engine (Checked with SPDYCheck) it's SPDY-friendly.

Here's how I integrated SPDY in my code.

I'm using AFHTTPRequestOperationManager

@interface MyClient : AFHTTPRequestOperationManager

And I embedded SPDY in initWithBaseURL:

- (id)initWithBaseURL:(NSURL *)url {
    self = [super initWithBaseURL:url];
    if (!self) {
        return nil;
    }

    // SPDY Config
    NSString *spdyURL = [NSString stringWithFormat:@"%@://%@:443",url.scheme, url.host];

    [SPDYURLConnectionProtocol registerOrigin:spdyURL];
    ...
  }

Note that my url is with format https://myapp.appspot.com/_ah/ So I reformat it when passing to SPDY registerOrigin: spdyURL will look like https://myapp.appspot.com:443

I suppose that's all I need? But I wasn't able to send request after adding the SPDY code. Debug message showed the following error:

error response from api/users/v1/is_token_valid :
Error Domain=NSURLErrorDomain 
Code=-1001 
"The request timed out." 
UserInfo=0xdc2c250 {NSErrorFailingURLStringKey=https://myapp.appspot.com/_ah/api/users/v1/is_token_valid?
user_token=[a_token], 
NSErrorFailingURLKey=https://myapp.appspot.com/_ah/api/users/v1/is_token_valid?
user_token=[a_token], 
NSLocalizedDescription=The request timed out., NSUnderlyingError=0xf270e60 "The request timed out."}

I have no clue at all. Hope someone with experience with SPDY on iOS could help!!

score 3 · Answer 1 · answered Mar 08 '14 at 21:59

3

It is true that Apple does not support NPN in default TLS implementation. However there are some SPDY libs using OpenSSL (which supports NPN).

Here is one on them: https://github.com/locationlabs/SPDY-for-iPhone

answered Mar 08 '14 at 21:59

kam800

547
5
9

did you try that before. I did find out the repo but not sure if it's reliable. – xialin Mar 11 '14 at 05:57
I tried to run it and it worked, but didn't use it in any project. – kam800 Mar 21 '14 at 19:40

score 2 · Accepted Answer · answered Mar 07 '14 at 12:18

2

Unfortunately Apple's TLS implementation doesn't support NPN which is used by Google App Engine. You can read more about it in the CocoaSPDY GitHub README.

You can't use CocoaSPDY with Google App Engine at this time.

answered Mar 07 '14 at 12:18

David Snabel-Caunt

57,804
13
114
132

@David Caunt Hello Sir Can I integrate CocoaSPDY for Mozilla FireFox ios App? – Shree Prakash Dec 26 '16 at 08:46

score 0 · Answer 3 · answered Aug 18 '15 at 08:46

Is it ok for you? I see that SPDY protocol support is now available in NSURLSession on OS X Yosemite and iOS 8 , and is Supported transparently by NSURLSession. see details： https://developer.apple.com/videos/wwdc/2014/ [What's New in Foundation Networking] But why it not work? When i use CocoaSPDY, set manager.session.configuration.protocolClasses=@[[SPDYURLSessionProtocol class]]; it's ok;

SPDY for iOS with AFNetworking

3 Answers3