kf_setImageWithURL with Authentication Challenge ?

[hshah2811]

My app is using below API to download image async manner.

public func kf_setImageWithURL(URL: NSURL, placeholderImage: UIImage?, optionsInfo: Kingfisher.KingfisherOptionsInfo?, completionHandler: Kingfisher.CompletionHandler?) -> Kingfisher.RetrieveImageTask

Problem i am facing is - how to provide authentication challenge response if my server is requesting to download any response. I know there are ways in normal NSURLConnection connection with delegate -
(void)URLSession:(NSURLSession *)session didReceiveChallenge:(NSURLAuthenticationChallenge *)challenge completionHandler

Is there any way in kingfisher where i can provide my credential before downloading image?

[onevcat]

If you are using NSURLAuthenticationMethodServerTrust, you can add your server host to trustedHosts of ImageDownloader to mark your server trusted:

ImageDownloader.defaultDownloader.trustedHosts!.insert("yourhost.com")

And if you are using HTTP basic authentication, you could just modify the request by injecting with requestModifier of the downloader.

However, if you are using other authentication methods, like client certificate, currently there is no way in Kingfisher for it.

I believe we should add a delegate of it for better extensibility. I will check it to see whether I could do something on this later.

[onevcat]

Now you should be able to use authenticationChallengeResponder for it.

[onevcat]

Version 2.1.0 is released, which contains this feature.

[TNikolai]

@onevcat Could you write example how to use authenticationChallengeResponder, basicaly i want to download image like this :
imageView.kf_setImageWithURL(url, placeholderImage: UIImage(named: PlaceHolderImageName))