Bmob第三方登录详解
简介
本文主要介绍新浪微博,QQ,微信的登录接入以及如何配合BmobSDK中的第三方登录功能实现第三方登录。
在使用之前请先按照快速入门创建好可以调用BmobSDK的工程。
新浪微博登录
1.下载新浪SDK，并按照上面给的文档说明，在新浪的后台创建应用并配置好工程。
2.在AppDelegate中实现回调。
AppDelegate.h
@interface AppDelegate : UIResponder <UIApplicationDelegate,WeiboSDKDelegate>
AppDelegate.m
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation{
return [WeiboSDK handleOpenURL:url delegate:self];
}
- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url{
return [WeiboSDK handleOpenURL:url delegate:self];
}
3.请求授权信息，可在点击登录处实现
//向新浪发送请求
WBAuthorizeRequest *request = [WBAuthorizeRequest request];
request.redirectURI = @"https://api.weibo.com/oauth2/default.html";
request.scope = @"all";
[WeiboSDK sendRequest:request];
4.接收回调信息并与Bmob账号进行绑定，首次登录时Bmob后台会创建一个账号。
NSString *accessToken = [(WBAuthorizeResponse *)response accessToken];
NSString *uid = [(WBAuthorizeResponse *)response userID];
NSDate *expiresDate = [(WBAuthorizeResponse *)response expirationDate];
NSLog(@"acessToken:%@",accessToken);
NSLog(@"UserId:%@",uid);
NSLog(@"expiresDate:%@",expiresDate);
NSDictionary *dic = @{@"access_token":accessToken,@"uid":uid,@"expirationDate":expiresDate};
//通过授权信息注册登录
[BmobUser loginInBackgroundWithAuthorDictionary:dic platform:BmobSNSPlatformSinaWeibo block:^(BmobUser *user, NSError *error) {
if (error) {
NSLog(@"weibo login error:%@",error);
} else if (user){
NSLog(@"user objectid is :%@",user.objectId);
}
}];
QQ登录
1.进入腾讯开放平台注册用户，创建应用（需要审核）;
2.按照开发文档导入SDK，然后把注册成功后获取到的Key加入到Url Schemes中，格式为:tencentXXXX;
3.在AppDelegate.m中实现下面方法
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
return [TencentOAuth HandleOpenURL:url];
}
- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {
return [TencentOAuth HandleOpenURL:url];
}
4.注册并实现授权
//注册
_oauth = [[TencentOAuth alloc] initWithAppId:@"1104720526" andDelegate:self];
//授权
NSArray *permissions = [NSArray arrayWithObjects:kOPEN_PERMISSION_GET_INFO,nil];
[_oauth authorize:permissions inSafari:NO];
//获取用户信息
[_oauth getUserInfo];
5.获取AccessToken等信息,此处为实现TencentSessionDelegate中的方法，并进行绑定。
- (void)tencentDidLogin{
if (_tencentOAuth.accessToken && 0 != [_tencentOAuth.accessToken length]){
// 记录登录用户的OpenID、Token以及过期时间
NSString *accessToken = _tencentOAuth.accessToken;
NSString *uid = _tencentOAuth.openId;
NSDate *expiresDate = _tencentOAuth.expirationDate;
NSLog(@"acessToken:%@",accessToken);
NSLog(@"UserId:%@",uid);
NSLog(@"expiresDate:%@",expiresDate);
NSDictionary *dic = @{@"access_token":accessToken,@"uid":uid,@"expirationDate":expiresDate};
//通过授权信息注册登录
[BmobUser loginInBackgroundWithAuthorDictionary:dic platform:BmobSNSPlatformQQ block:^(BmobUser *user, NSError *error) {
if (error) {
NSLog(@"weibo login error:%@",error);
} else if (user){
NSLog(@"user objectid is :%@",user.objectId);
//跳转
ShowUserMessageViewController *showUser = [[ShowUserMessageViewController alloc] init];
showUser.title = @"用户信息";
[self.navigationController pushViewController:showUser animated:YES];
}
}];
}
}
- (void)tencentDidNotLogin:(BOOL)cancelled{
}
- (void)tencentDidNotNetWork{
}
微信
1.到微信开放平台注册账号并提交应用审核;
2.按照官方文档配置好SDK，导入相应的依赖包，添加URL scheme;
3.在AppDelegate实现下面方法；
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
return [TencentOAuth HandleOpenURL:url] ||
[WeiboSDK handleOpenURL:url delegate:self] ||
[WXApi handleOpenURL:url delegate:self];;
}
- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {
return [TencentOAuth HandleOpenURL:url] ||
[WeiboSDK handleOpenURL:url delegate:self] ||
[WXApi handleOpenURL:url delegate:self];;
}
4.实现点击发送授权请求
- (IBAction)weixinLogin:(id)sender {
SendAuthReq* req =[[SendAuthReq alloc ] init];
req.scope = @"snsapi_userinfo,snsapi_base";
req.state = @"0744" ;
[WXApi sendReq:req];
}
5.发送授权后到完成绑定需要经过两步。
1）获取code
2）利用code获取token，openId和expiresDate
代码在AppDelegate.m中实现。如下：
-(void)onResp:(BaseReq *)resp
{
/*
ErrCode ERR_OK = 0(用户同意)
ERR_AUTH_DENIED = -4（用户拒绝授权）
ERR_USER_CANCEL = -2（用户取消）
code 用户换取access_token的code，仅在ErrCode为0时有效
state 第三方程序发送时用来标识其请求的唯一性的标志，由第三方程序调用sendReq时传入，由微信终端回传，state字符串长度不能超过1K
lang 微信客户端当前语言
country 微信用户当前国家信息
*/
SendAuthResp *aresp = (SendAuthResp *)resp;
if (aresp.errCode== 0) {
NSString *code = aresp.code;
[self getAccessToken:code];
}
}
-(void)getAccessToken:(NSString*)code{
//https://api.weixin.qq.com/sns/oauth2/access_token?appid=APPID&secret=SECRET&code=CODE&grant_type=authorization_code
#warning 在此处需要填写你自身的appid和secretkey
NSString *url =[NSString stringWithFormat:@"https://api.weixin.qq.com/sns/oauth2/access_token?appid=%@&secret=%@&code=%@&grant_type=authorization_code",@"填入你的appid",@"填入你的secretkey",code];
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
NSURL *zoneUrl = [NSURL URLWithString:url];
NSString *zoneStr = [NSString stringWithContentsOfURL:zoneUrl encoding:NSUTF8StringEncoding error:nil];
NSData *data = [zoneStr dataUsingEncoding:NSUTF8StringEncoding];
dispatch_async(dispatch_get_main_queue(), ^{
if (data) {
NSDictionary *dicFromWeixin = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
/*
{
"access_token" = "OezXcEiiBSKSxW0eoylIeJDUKD6z6dmr42JANLPjNN7Kaf3e4GZ2OncrCfiKnGWiusJMZwzQU8kXcnT1hNs_ykAFDfDEuNp6waj-bDdepEzooL_k1vb7EQzhP8plTbD0AgR8zCRi1It3eNS7yRyd5A";
"expires_in" = 7200;
openid = oyAaTjsDx7pl4Q42O3sDzDtA7gZs;
"refresh_token" = "OezXcEiiBSKSxW0eoylIeJDUKD6z6dmr42JANLPjNN7Kaf3e4GZ2OncrCfiKnGWi2ZzH_XfVVxZbmha9oSFnKAhFsS0iyARkXCa7zPu4MqVRdwyb8J16V8cWw7oNIff0l-5F-4-GJwD8MopmjHXKiA";
scope = "snsapi_userinfo,snsapi_base";
}
*/
// 记录登录用户的OpenID、Token以及过期时间
NSString *accessToken = [dicFromWeixin objectForKey:@"access_token"];
NSString *uid = [dicFromWeixin objectForKey:@"openid"];
NSNumber *expires_in = [dicFromWeixin objectForKey:@"expires_in"];
NSDate *expiresDate = [NSDate dateWithTimeIntervalSinceNow:[expires_in doubleValue]];
NSLog(@"acessToken:%@",accessToken);
NSLog(@"UserId:%@",uid);
NSLog(@"expiresDate:%@",expiresDate);
NSDictionary *dic = @{@"access_token":accessToken,@"uid":uid,@"expirationDate":expiresDate};
//通过授权信息注册登录
[BmobUser loginInBackgroundWithAuthorDictionary:dic platform:BmobSNSPlatformWeiXin block:^(BmobUser *user, NSError *error) {
if (error) {
NSLog(@"weibo login error:%@",error);
} else if (user){
NSLog(@"user objectid is :%@",user.objectId);
}
}];
}
});
});
}