Basic authentication with UIWebView - ios

Question

I read a lot of post on SO on how I could be able to apply basic authentication.
I've produced this code but it does not show the log on page, only a white page is displayed. Credentials that I use works in the browser, so this is not the problem. My delegates are ok.
I can't figure out where my code fails:
override func viewDidLoad() {
super.viewDidLoad()
webView.delegate = self
self.loadPage()
}
func loadPage() {
let url = "mypage.com/auht/Logon.do"
let request = NSMutableURLRequest(URL: NSURL(string: url)!, cachePolicy: NSURLRequestCachePolicy.ReloadIgnoringLocalCacheData, timeoutInterval: 12)
webView.loadRequest(request)
}
// MARK: NSURLConnectionDelegate Delegates
func connection(connection: NSURLConnection, willSendRequestForAuthenticationChallenge challenge: NSURLAuthenticationChallenge) {
if challenge.previousFailureCount == 0 {
authenticated = true
let credential = NSURLCredential(user: "m.rinaldi13", password: "299792,458km/s", persistence: NSURLCredentialPersistence.ForSession)
challenge.sender.useCredential(credential, forAuthenticationChallenge: challenge)
} else {
challenge.sender.cancelAuthenticationChallenge(challenge)
}
}
// MARK: Web View Delegates
func webView(webView: UIWebView, shouldStartLoadWithRequest request: NSURLRequest, navigationType: UIWebViewNavigationType) -> Bool {
if authenticated == nil {
authenticated = false
NSURLConnection(request: request, delegate: self)
return false
}
return true
}
Any help/tip will be appreciated!

Answer 1

I find a solution by my self, excluding all this boring passeges.
func doRequestWithBasicAuth(completion : (success : Bool, html: String?, error : NSError?) -> Void) {
if let user = self.user {
let loginString = NSString(format: "%#:%#", user.login!, user.pwd!)
let loginData: NSData = loginString.dataUsingEncoding(NSUTF8StringEncoding)!
let base64LoginString = loginData.base64EncodedStringWithOptions(nil)
let url = NSURL(string: user.service!.getURL())
let request = NSMutableURLRequest(URL: url!)
request.HTTPMethod = "POST"
request.setValue("Basic \(base64LoginString)", forHTTPHeaderField: "Authorization")
NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue()) {(response, data, error) in
if error == nil {
let htmlString = NSString(data: data, encoding: NSUTF8StringEncoding)
completion(success: true, html: htmlString as? String, error: nil)
} else {
completion(success: false, html: nil, error: error)
}
}
} else {
completion(success: false, html: nil, error: NSError())
}
}
Then you can evenly display page on web view in this way:
self.doRequestWithBasicAuth({ (success, html, error) -> Void in
if error == nil {
self.webView.loadHTMLString(string: html, baseURL: <yourNSURL>)
}
})
Obviously you can (had) to beautify code, like creating a class for model User:
class User {
var login: String?
var pwd: String?
func valueForHeaderFieldAuthorization() -> String {
let loginString = NSString(format: "%#:%#", user.login!, user.pwd!)
let loginData: NSData = loginString.dataUsingEncoding(NSUTF8StringEncoding)!
let base64LoginString = loginData.base64EncodedStringWithOptions(nil)
return "Basic \(base64LoginString)"
}
}