How to get cookie from a url in iOS? - ios

Question

I have an application where I have to create session using a URL and need to get cookie from that URL and pass the cookie to webview so that it won't ask for any username and password.
For that I am using this code:
- (void)getcookie {
NSURL* aUrl =
[NSURL URLWithString:#"https://www.sessioncheck.com/session/create"];
NSMutableURLRequest* request =
[NSMutableURLRequest requestWithURL:aUrl
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:30.0];
NSString* email = #"tina#gmail.com";
NSString* password = #"abcde#123";
NSString* combinedString =
[NSString stringWithFormat:#"%#:%#", email, password];
NSString* base64encodedstring =
[NSString stringWithBase64EncodedString:combinedString];
NSData* base64data = [NSData dataWithBase64EncodedString:combinedString];
[request addValue:[NSString stringWithFormat:#"Basic %#", base64encodedstring]
forHTTPHeaderField:#"Authorization"];
[request setHTTPMethod:#"GET"];
NSError* error = nil;
NSData* returnData = [NSURLConnection sendSynchronousRequest:request
returningResponse:nil
error:&error];
if (returnData != nil) {
NSDictionary* JSONDictionary =
[NSJSONSerialization JSONObjectWithData:returnData
options:kNilOptions
error:&error];
}
}
This is my Android code. I am able to get cookie in Android:
HttpGet get;
try {
get = new HttpGet(
new URI("https://www.sessioncheck.com/session/create"));
byte[] encodedBytes = Base64.encodeBase64((email+":"+password).getBytes());
//System.out.println("encodedBytes " + new String(encodedBytes));
get.setHeader("Authorization", "Basic " + new String(encodedBytes));
http.execute(get);
List<Cookie> cookies = ((DefaultHttpClient)http).getCookieStore().getCookies();
for (int i = 0; i < cookies.size(); i++) {
cookie = cookies.get(i);
}
String cookieString = cookie.getName() + "=" + cookie.getValue();
signedin.storeCookie("cookie", cookieString);
}
I am trying to get the base64encoded string from my combinedString(username:password) but the problem is my base64encodedstring is returning nil.

Answer 1

Did you use this code: https://github.com/nicklockwood/Base64 ?
If you did then you should use - (NSString *)base64EncodedString; instead.
So your code should look like this:
NSString* base64encodedstring = [combinedString base64EncodedString];
NSData* base64data = [base64encodedstring dataUsingEncoding:NSUTF8StringEncoding];
About cookies, you can get them from "returningResponse" outgoing parameter of -[NSURLConnection sendSynchronousRequest:returningResponse:error:].
You should pass an address of a NSHTTPURLResponse pointer into it.
So your code should be like this:
NSHTTPURLResponse *res = nil;
NSData *returnData = [NSURLConnection sendSynchronousRequest:request
returningResponse:&res
error:&error];
NSArray *cookies = [NSHTTPCookie cookiesWithResponseHeaderFields:[res allHeaderFields]
forURL:aUrl];
EDIT : As you requested, to set cookies into a NSMutableURLRequest, you have to use the NSArray *cookies from above. Here is the code:
// Use the cookies from the code above
NSDictionary *headers = [NSHTTPCookie requestHeaderFieldsWithCookies:cookies];
NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:newURL];
[req setAllHTTPHeaderFields:headers];
// Do your other setups here...