mirror of
https://github.com/firebase/firebase-ios-sdk
synced 2026-11-09 22:36:01 +05:45
121 lines
3.9 KiB
Objective-C
121 lines
3.9 KiB
Objective-C
/*
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* Copyright 2019 Google
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import "GoogleAuthProvider.h"
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#import <GoogleSignIn/GoogleSignIn.h>
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#import "AppManager.h"
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#import <FirebaseCore/FIRApp.h>
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#import <FirebaseCore/FIROptions.h>
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#import "FIRGoogleAuthProvider.h"
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#import "ApplicationDelegate.h"
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/** @typedef GoogleSignInCallback
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@brief The type of block invoked when a @c GIDGoogleUser object is ready or an error has
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occurred.
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@param user The Google user if any.
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@param error The error which occurred, if any.
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*/
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typedef void (^GoogleSignInCallback)(GIDGoogleUser *user, NSError *error);
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/** @class GoogleAuthDelegate
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@brief The designated delegate class for Google Sign-In.
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*/
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@interface GoogleAuthDelegate : NSObject <GIDSignInDelegate, OpenURLDelegate>
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/** @fn initWithPresentingViewController:callback:
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@brief Initializes the new instance with the callback.
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@param presentingViewController The view controller to present the UI.
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@param callback A block which is invoked when the sign-in flow finishes. Invoked asynchronously
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on an unspecified thread in the future.
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*/
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- (instancetype)initWithPresentingViewController:(UIViewController *)presentingViewController
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callback:(nullable GoogleSignInCallback)callback;
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@end
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@implementation GoogleAuthDelegate {
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UIViewController *_presentingViewController;
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GoogleSignInCallback _callback;
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}
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- (instancetype)initWithPresentingViewController:(UIViewController *)presentingViewController
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callback:(nullable GoogleSignInCallback)callback {
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self = [super init];
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if (self) {
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_presentingViewController = presentingViewController;
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_callback = callback;
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}
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return self;
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}
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- (void)signIn:(GIDSignIn *)signIn
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didSignInForUser:(GIDGoogleUser *)user
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withError:(NSError *)error {
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GoogleSignInCallback callback = _callback;
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_callback = nil;
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if (callback) {
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callback(user, error);
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}
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}
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- (BOOL)handleOpenURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication {
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return [[GIDSignIn sharedInstance] handleURL:url];
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}
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@end
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@implementation GoogleAuthProvider
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- (void)getAuthCredentialWithPresentingViewController:(UIViewController *)viewController
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callback:(AuthCredentialCallback)callback {
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[self signOut];
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// The delegate needs to be retained.
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__block GoogleAuthDelegate *delegate = [[GoogleAuthDelegate alloc]
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initWithPresentingViewController:viewController
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callback:^(GIDGoogleUser *user, NSError *error) {
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[ApplicationDelegate setOpenURLDelegate:nil];
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delegate = nil;
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if (error) {
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callback(nil, error);
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return;
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}
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GIDAuthentication *auth = user.authentication;
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FIRAuthCredential *credential = [FIRGoogleAuthProvider credentialWithIDToken:auth.idToken
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accessToken:auth.accessToken];
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callback(credential, error);
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}];
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GIDSignIn *signIn = [GIDSignIn sharedInstance];
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signIn.clientID = [self googleClientID];
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signIn.shouldFetchBasicProfile = YES;
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signIn.delegate = delegate;
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signIn.presentingViewController = viewController;
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[ApplicationDelegate setOpenURLDelegate:delegate];
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[signIn signIn];
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}
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- (void)signOut {
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[[GIDSignIn sharedInstance] signOut];
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}
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- (NSString *)googleClientID {
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return [AppManager app].options.clientID;
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}
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@end
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