iOS：新浪微博OAuth认证

@interface ViewController ()<UIWebViewDelegate>

@property (strong,nonatomic)UIWebView *webView;

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    //创建网页视图

    self.webView = [[UIWebView alloc]initWithFrame:self.view.bounds];

    self.webView.delegate = self;

    [self.view addSubview:self.webView];

    //发送网络请求,在webView中打开OAuth认证的网址

    NSString *strURL = [NSString stringWithFormat:@"%@?client_id=%@&redirect_uri=%@",kStringOAuthURL,kStringAPPKey,kStringRedirectURL];

    NSURL *URL = [NSURL URLWithString:strURL];

    NSURLRequest *request = [NSURLRequest requestWithURL:URL cachePolicy: timeoutInterval:-];

    [self.webView loadRequest:request];

}

#pragma mark - 网页视图代理方法

#pragma mark 通过网页视图的代理监听拦截接口网址，获取code

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{

    NSString *absoluteURL = request.URL.absoluteString;

    WCLog(@"%@",absoluteURL);

    //http://www.baidu.com/?code=b6a6e3ba80aac6f5a0b639716c168053

    /*

     //请求

     https://api.weibo.com/oauth2/authorize?client_id=123050457758183&redirect_uri=http://www.example.com/response&response_type=code

    */

    if ([absoluteURL hasPrefix:@"http://www.baidu.com"]) {

        //截取code

        NSRange range = [absoluteURL rangeOfString:@"code="];

        NSUInteger location = range.location + range.length;

        NSString *code = [absoluteURL substringFromIndex:location];

        //进行授权请求

        if ([code length]) {

            [self startAccessLoginOAuth:(NSString *)code];

        }

    }

    return YES;

}

#pragma mark - 进行登录授权请求,授权期内不用再进行授权

-(void)startAccessLoginOAuth:(NSString *)code{

    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];

    manager.responseSerializer = [[AFJSONResponseSerializer alloc]init];

    /*

     //同意授权后会重定向

     http://www.example.com/response&code=CODE

     POST

     请求参数

     必选    类型及范围    说明

     client_id    true    string    申请应用时分配的AppKey。

     client_secret    true    string    申请应用时分配的AppSecret。

     grant_type    true    string    请求的类型，填写authorization_code

     grant_type为authorization_code时

     必选    类型及范围    说明

     code    true    string    调用authorize获得的code值。

     redirect_uri    true    string    回调地址，需需与注册应用里的回调地址一致。

    */

    //设置POST参数

    NSDictionary *parameters =

                        @{

                            @"client_id":kStringAPPKey,

                            @"client_secret":kStringAPPSecret,

                            @"grant_type":@"authorization_code",

                            @"code":code,

                            @"redirect_uri":@"http://www.baidu.com"

                        };

    ////获取access_token

    [manager POST:kStringAccessTokenURL parameters:parameters success:^(AFHTTPRequestOperation *operation, NSDictionary *responseObject) {

        //WCLog(@"%@---%@",operation,responseObject);

        /*

         下面返回的这些信息用来做账户管理，可以创建一个账户和一个账户管理类，以便用来控制用户的登录：

         如果access_token令牌未超期，可以直接登录；

         如果access_token令牌超期，需要重新授权登录。

         账户信息：

         responseObject:

           {

             "access_token" = "2.00HMevMDjoPWRBc1b0d128a3DxHy8D";

             "expires_in" = 157679999;

             "remind_in" = 157679999;

             uid = 2939453735;

           }

        */

       //1.创建当前账户实例并初始化

       //2.创建账户管理实例的单例

       //3.保存帐户

       //4.设为当前帐户

       //5.设置主窗口为rootViewController,直接进入用户主页

        /**

         获取当前用的微博信息

        */

       [self getUserStatuesInfo:responseObject[@"access_token"]];

    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {

        WCLog(@"授权失败:%@",error);

    }];

}

//获取当前用的微博信息

-(void)getUserStatuesInfo:(NSString *)access_token{

    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];

    manager.responseSerializer = [[AFJSONResponseSerializer alloc]init];

    //设置GET参数

    NSDictionary *parameters =

                            @{

                              @"client_id":kStringAPPKey,

                              @"client_secret":kStringAPPSecret,

                              @"access_token":access_token,

                            };

    [manager GET:kStatuesFriendTimeLineURL parameters:parameters success:^(AFHTTPRequestOperation *operation, NSDictionary *responseObject) {

        NSArray *statues = responseObject[@"statuses"];

        [statues enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {

            WCLog(@"%@",obj);

        }];

    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {

        WCLog(@"%@",error);

    }];

}

@end