I installed iOS 13, the authentication via Safari no longer works. I have the same configuration on iOS 12 except self.authSessionAS.presentationContextProvider = self;
self.authSessionAS = [[ASWebAuthenticationSession alloc]initWithURL:[[NSURL alloc] initWithString:self.authUrl] callbackURLScheme:@"app://" completionHandler:^(NSURL * _Nullable callbackURL, NSError * _Nullable error) {
if(callbackURL)
{
self.resultStream(callbackURL.absoluteString);
}else
{
self.resultStream(@"");
}
self.resultStream = NULL;
}];
self.authSessionAS.presentationContextProvider = self;
[self.authSessionAS start];
I find a solution
Add above the implementation.
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 130000
@interface AppDelegate() <ASWebAuthenticationPresentationContextProviding>
@end
#endif
In your code for Auth.
self.authSessionAS = [[ASWebAuthenticationSession alloc]initWithURL:[[NSURL alloc] initWithString:self.authUrl] callbackURLScheme:@"app://" completionHandler:^(NSURL * _Nullable callbackURL, NSError * _Nullable error) {
if(callbackURL)
{
self.resultStream(callbackURL.absoluteString);
}else
{
self.resultStream(@"");
}
self.resultStream = NULL;
}];
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 130000
if (@available(iOS 13, *)) {
self.authSessionAS.presentationContextProvider = self;
}
#endif
[self.authSessionAS start];
Add method
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 130000
#pragma mark - ASWebAuthenticationPresentationContextProviding
- (ASPresentationAnchor)presentationAnchorForWebAuthenticationSession:(ASWebAuthenticationSession *)session API_AVAILABLE(ios(13.0)){
return UIApplication.sharedApplication.keyWindow;
}
#endif
within UIScene
sometimes it's hard to determine the right context and all samples above may not work as expected.
import AuthenticationServices
import UIKit
public protocol AuthContextProvider where Self: ASWebAuthenticationPresentationContextProviding {
func clear()
}
final class ContextProvider: NSObject, AuthContextProvider {
private var context: ASPresentationAnchor?
// MARK: - ASWebAuthenticationPresentationContextProviding
public func presentationAnchor(for session: ASWebAuthenticationSession) -> ASPresentationAnchor {
let window = UIWindow()
window.makeKeyAndVisible()
self.context = window
return window
}
public func clear() {
context = nil
}
}
then somewhere in u'r code:
var contextProvider: AuthContextProvider?
var session: NSObject?
and in func with auth call
let session = ASWebAuthenticationSession(url: url, callbackURLScheme: callbackScheme) {
url, error in
if #available(iOS 13, *) {
self.contextProvider?.clear() // clear context
}
completion(url, error)
}
self.session = session // retain session
if #available(iOS 13, *) {
self.contextProvider = ContextProvider() // retain context
session.presentationContextProvider = self.contextProvider
}
session.start()
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