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/*
* Copyright 2017 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import "FacebookAuthProvider.h"
#import "FIRFacebookAuthProvider.h"
#import "ApplicationDelegate.h"
#import "AuthCredentials.h"
#import "FBSDKCoreKit.h"
#import "FBSDKLoginKit.h"
/** @var kFacebookAppId
@brief The App ID for the Facebook SDK.
*/
static NSString *const kFacebookAppID = KFACEBOOK_APP_ID;
@interface FacebookAuthProvider () <OpenURLDelegate>
@end
@implementation FacebookAuthProvider {
FBSDKLoginManager *_loginManager;
}
- (instancetype)init {
self = [super init];
if (self) {
_loginManager = [[FBSDKLoginManager alloc] init];
}
return self;
}
- (void)getAuthCredentialWithPresentingViewController:(UIViewController *)viewController
callback:(AuthCredentialCallback)callback {
[self signOut];
[ApplicationDelegate setOpenURLDelegate:self];
[FBSDKSettings setAppID:kFacebookAppID];
[_loginManager logInWithReadPermissions:@[ @"email" ]
fromViewController:viewController
handler:^(FBSDKLoginManagerLoginResult *result, NSError *error) {
[ApplicationDelegate setOpenURLDelegate:nil];
if (!error && result.isCancelled) {
error = [NSError errorWithDomain:@"com.google.FirebaseAuthSample" code:-1 userInfo:nil];
}
if (error) {
callback(nil, error);
return;
}
NSString *accessToken = [FBSDKAccessToken currentAccessToken].tokenString;
callback([FIRFacebookAuthProvider credentialWithAccessToken:accessToken], nil);
}];
}
- (void)signOut {
[_loginManager logOut];
}
- (BOOL)handleOpenURL:(NSURL *)URL sourceApplication:(NSString *)sourceApplication {
return [[FBSDKApplicationDelegate sharedInstance] application:[UIApplication sharedApplication]
openURL:URL
sourceApplication:sourceApplication
annotation:nil];
}
@end
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