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125 lines
4.5 KiB
Plaintext
125 lines
4.5 KiB
Plaintext
3 months ago
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/**
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* Copyright 2017 Google Inc.
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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 "GoogleSignInAppController.h"
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#import <objc/runtime.h>
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// Handles Google SignIn UI and events.
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GoogleSignInHandler *gsiHandler;
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/*
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* Create a category to customize the application. When this is loaded the
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* method for the existing application and GoogleSignIn are swizzled into the
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* other's class selector. Then we call our "own" msthod which is actually the
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* original application's implementation. See more info at:
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* https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/CustomizingExistingClasses/CustomizingExistingClasses.html
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*/
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@implementation UnityAppController (GoogleSignInController)
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/*
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Called when the category is loaded. This is where the methods are swizzled
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out.
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*/
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+ (void)load {
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Method original;
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Method swizzled;
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original = class_getInstanceMethod(
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self, @selector(application:didFinishLaunchingWithOptions:));
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swizzled = class_getInstanceMethod(
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self,
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@selector(GoogleSignInAppController:didFinishLaunchingWithOptions:));
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method_exchangeImplementations(original, swizzled);
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original = class_getInstanceMethod(
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self, @selector(application:openURL:sourceApplication:annotation:));
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swizzled = class_getInstanceMethod(
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self, @selector
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(GoogleSignInAppController:openURL:sourceApplication:annotation:));
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method_exchangeImplementations(original, swizzled);
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original =
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class_getInstanceMethod(self, @selector(application:openURL:options:));
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swizzled = class_getInstanceMethod(
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self, @selector(GoogleSignInAppController:openURL:options:));
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method_exchangeImplementations(original, swizzled);
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}
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- (BOOL)GoogleSignInAppController:(UIApplication *)application
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didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
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// IMPORTANT: IF you are not supplying a GoogleService-Info.plist in your
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// project that contains the client id, you need to set the client id here.
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NSString *path = [[NSBundle mainBundle] pathForResource:@"GoogleService-Info"
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ofType:@"plist"];
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NSDictionary *dict = [NSDictionary dictionaryWithContentsOfFile:path];
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NSString *clientId = [dict objectForKey:@"CLIENT_ID"];
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gsiHandler = [GoogleSignInHandler alloc];
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// Setup the Sign-In instance.
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GIDSignIn *signIn = [GIDSignIn sharedInstance];
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signIn.clientID = clientId;
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signIn.uiDelegate = gsiHandler;
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signIn.delegate = gsiHandler;
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// looks like it's just calling itself, but the implementations were swapped
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// so we're actually calling the original once we're done
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return [self GoogleSignInAppController:application
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didFinishLaunchingWithOptions:launchOptions];
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}
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/**
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* Handle the auth URL
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*/
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- (BOOL)GoogleSignInAppController:(UIApplication *)application
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openURL:(NSURL *)url
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sourceApplication:(NSString *)sourceApplication
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annotation:(id)annotation {
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BOOL handled = [self GoogleSignInAppController:application
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openURL:url
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sourceApplication:sourceApplication
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annotation:annotation];
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return [[GIDSignIn sharedInstance] handleURL:url
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sourceApplication:sourceApplication
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annotation:annotation] ||
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handled;
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}
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/**
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* Handle the auth URL.
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*/
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- (BOOL)GoogleSignInAppController:(UIApplication *)app
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openURL:(NSURL *)url
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options:(NSDictionary *)options {
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BOOL handled =
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[self GoogleSignInAppController:app openURL:url options:options];
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return [[GIDSignIn sharedInstance]
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handleURL:url
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sourceApplication:
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options[UIApplicationOpenURLOptionsSourceApplicationKey]
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annotation:
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options[UIApplicationOpenURLOptionsAnnotationKey]] ||
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handled;
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}
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@end
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