[SOLVED] iOS Twitter Reverse OAuth

iOS Twitter Reverse OAuth

I have been pouring over the internet for days now trying to figure out how to implement this.

I need to request the access token and secret from twitter in order to pass this to a server that will process the users tweets for my application.

I have been following this link https://dev.twitter.com/docs/ios/using-reverse-auth

The problem is step 1. They dont give you an example of step 1.

Here is my code:

NSURL *url = [NSURL URLWithString:TW_OAUTH_URL_REQUEST_TOKEN];
NSDictionary *parameters = @{TW_X_AUTH_MODE_KEY:TW_X_AUTH_MODE_REVERSE_AUTH};

SLRequest *getTwitterAuth = [SLRequest requestForServiceType:SLServiceTypeTwitter requestMethod:SLRequestMethodGET URL:url parameters:parameters];


//  Assume that we stored the result of Step 1 into a var 'resultOfStep1'

NSString *S = resultOfStep1;
NSDictionary *step2Params = [[NSMutableDictionary alloc] init];
[step2Params setValue:@"kfLxMJsk7fqIuy8URhleFg" forKey:@"x_reverse_auth_target"];
[step2Params setValue:S forKey:@"x_reverse_auth_parameters"];

NSURL *url2 = [NSURL URLWithString:@"https://api.twitter.com/oauth/access_token"];
SLRequest *stepTwoRequest =
[SLRequest requestForServiceType:SLServiceTypeTwitter requestMethod:SLRequestMethodPOST URL:url2 parameters:step2Params];

//  You *MUST* keep the ACAccountStore alive for as long as you need an ACAccount instance
//  See WWDC 2011 Session 124 for more info.
self.accountStore = [[ACAccountStore alloc] init];

//  We only want to receive Twitter accounts
ACAccountType *twitterType =
[self.accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierTwitter];

//  Obtain the user's permission to access the store
[self.accountStore requestAccessToAccountsWithType:twitterType
                             withCompletionHandler:^(BOOL granted, NSError *error) {
     if (!granted) {
         // handle this scenario gracefully
     } else {
         // obtain all the local account instances
         NSArray *accounts =
         [self.accountStore accountsWithAccountType:twitterType];

         // for simplicity, we will choose the first account returned - in your app,
         // you should ensure that the user chooses the correct Twitter account
         // to use with your application.  DO NOT FORGET THIS STEP.
         [stepTwoRequest setAccount:[accounts objectAtIndex:0]];

         // execute the request
         [stepTwoRequest performRequestWithHandler:
          ^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error) {
              NSString *responseStr = 
              [[NSString alloc] initWithData:responseData 
                                    encoding:NSUTF8StringEncoding];

              // see below for an example response
              NSLog(@"The user's info for your server:\n%@", responseStr);
          }];
     } 
 }];

I have been trying to figure out how I process the SLRequest in oder to pass it to step 2 from the twitter docs.

I have also used this here: https://github.com/seancook/TWReverseAuthExample

This code is great but very complex. Any help would be greatly appreciated! Thanks!

Solution

Here is a class to help accomplish just this with a single method call that returns a dictionary with the token and token secret.

https://github.com/kbegeman/Twitter-Reverse-Auth

Hope this helps others out!