Login IOS with Django server

Question

I have a server written in Django and i want to login from my iOS app. I tried to debug this code for more than a weeks but i can figure out what is the problem. I try to login to my server from a webpage and it works with no error. So i suppose that the server works properly. So i think the problem should be on my iOS request.

I have a ViewController that is a NSURLConnectionDataConnectionDelegate and this is my login function

- (IBAction)Login:(id)sender{
if ([self validateData]) {

    NSURL *URL = [NSURL URLWithString:@"http://127.0.0.1:8000/passapp/login"];

    // Django requires csrf middleware token to work
    [[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookieAcceptPolicy:NSHTTPCookieAcceptPolicyAlways];
    NSArray* cookies = [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookiesForURL:[NSURL URLWithString:@"http://127.0.0.1:8000/passapp/login"]];
    NSLog(@"cookie csrf %@ /n",    [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies]);
    NSHTTPCookie *csrfCookie;
    NSLog(@"lunghezza array@%lu", (unsigned long)[[[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies] count]);

    for (NSHTTPCookie *cookie in [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies]) {
        if ([cookie.name isEqualToString:@"csrftoken"]) {
            csrfCookie = cookie;
            NSLog(@"CSRF  %@ ",    csrfCookie.value);
        }
    }

    // Setting post request
    NSString *post = [[NSString alloc] initWithFormat:@"username=%@;password=%@;csrfmiddlewaretoken=%@;", [_username text], [_password text], csrfCookie.value];
    NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
    NSString *postLength = [NSString stringWithFormat:@"%lu", (unsigned long)[postData length] ];

    NSLog(@"post data : %@ /n" , post);

    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:URL];
    [request setAllHTTPHeaderFields:[NSHTTPCookie requestHeaderFieldsWithCookies:[[NSHTTPCookieStorage sharedHTTPCookieStorage] cookiesForURL:URL]]];

    [request setValue:postLength forHTTPHeaderField:@"Content-Length"];
    [request addValue:csrfCookie.value forHTTPHeaderField:@"X-CSRFToken"];
    [request setValue:@"application/json; charset=UTF-8" forHTTPHeaderField:@"Content-Type"];

    [request setHTTPBody:postData];
    request.HTTPMethod = @"POST";



    NSURLSession *session = [NSURLSession sharedSession];
    NSURLSessionDataTask *task = [session dataTaskWithRequest:request
                                                completionHandler:
                                      ^(NSData *data, NSURLResponse *response, NSError *error) {
                                          NSLog(@"pupu");

                                          if (!error) {
                                              NSHTTPURLResponse *httpResp = (NSHTTPURLResponse*) response;
                                              NSLog(@"response: %@",httpResp);
                                              if (httpResp.statusCode == 200) {
                                                  // handle the response here
                                              }
                                          }
                                          else{
                                              NSLog(@"Errore :%@", error);
                                          }

                                          NSLog(@"pupu");
                                      }
                                  ];

    [task resume];

}

}

This is my error on terminal:

[23/Sep/2015 10:28:56]"POST /passapp/login HTTP/1.1" 500 60018

I can't figure out what's wrong with my code and my request. Could someone please help me? Thank you for your time, I hope someone could help me

Cheers

Can you post full traceback from your django application? You can simply get it by disabling debug and defining at least one valid email for `ADMINS` in setting, each error will be mailed to that email, unless you've customized loggers. — GwynBleidD, Sep 23 '15 at 10:52
Thank you for your answer . By disabling debug the error changed from 500 to "GET /passapp/login/ HTTP/1.1" 401 3389" so i can't post full traceback . I don't understand how the error could have changed only by disabling option. By the way, my credentials are correct but i still get error, and the GET request should be a POST... — boh, Sep 23 '15 at 12:23
Your domain name must be specified inside `ALLOWED_HOSTS` in settings when debug is disabled. — GwynBleidD, Sep 23 '15 at 12:25
I've done it, ALLOWED_HOSTS = ['localhost', '127.0.0.1'], but no 500 error. — boh, Sep 23 '15 at 13:03
Now i getting this : " "GET /passapp/login/ HTTP/1.1" 401 ". Probably there is something wrong in the iOS POST request, because server receive a GET request with no user and password. — boh, Sep 23 '15 at 13:07

score 0 · Answer 1 · edited May 23 '17 at 12:03

0

Have you seen Sending an HTTP POST request on iOS? I think that it has a good answer which might help you.

edited May 23 '17 at 12:03

Community

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answered Sep 23 '15 at 14:55

Asig

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Login IOS with Django server

1 Answers1