我正在我的应用程序中实现SoundCloud登录流程.该应用程序在SFSafariViewController中打开https://soundcloud.com/connect,其中redirect_uri使用我的应用程序的自定义URL方案来接收响应.它适用于直接的SoundCloud登录,但在尝试使用“使用Google登录”按钮时失败.
在Safari中,该按钮会打开一个带有Google登录页面的新选项卡(桌面弹出窗口),然后通过postMessage与SoundCloud选项卡进行通信.如果您使用iOS Safari应用程序,此登录流程可以正常工作,但在SFSafariViewController中失败(单击该按钮会转到带有Google网址的白页:https://accounts.google.com/o/oauth2/auth?.. ).
现在我的解决方法是建议使用Google的用户点击SFSafariViewController上的Safari图标来完成Safari应用程序中的登录流程,但我想知道是否有办法在不离开我的应用程序的情况下处理此问题.
解决方法
好吧,如果我使用UIWebView,您可以在用户通过Google进行身份验证后从谷歌获取最终的oauth响应.但是,我们如何将其转回SoundCloud(例如soundcloud.com/connect/via/google_plus/returning)
- (void) webViewDidFinishLoad:(UIWebView*)inWebView { NSString* str = [inWebView stringByEvaluatingJavaScriptFromString:@"document.getElementById('response-form-encoded').value"]; if ( str.length > 0 ) { NSDictionary* params = parseURLParams( str ); NSLog( @"%@",params ); } }
输出:
{ "access_token" = "ya2...<removed>...4g"; authuser = 0; code = "4/sU_g7....<removed>...fnRELA"; "expires_in" = 3600; "id_token" = "eyJhb...<removed>...DA"; prompt = none; scope = "https://www.googleapis.com/auth/userinfo.email+https://www.googleapis.com/auth/plus.login+https://www.googleapis.com/auth/userinfo.profile+https://www.googleapis.com/auth/plus.moments.write+https://www.googleapis.com/auth/plus.me+https://www.googleapis.com/auth/plus.profile.agerange.read+https://www.googleapis.com/auth/plus.profile.language.read+https://www.googleapis.com/auth/plus.circles.members.read"; "session_state" = "c8703a085b885bbe8c8d0e29277b0c2fdf9c6c87..65aa"; state = "392921654%7C0.288515904"; "token_type" = Bearer; }
启动谷歌登录步骤的URL如下所示 – 为方便起见,我已解码下面的URL转义编码:
https://accounts.google.com/o/oauth2/auth?client_id=984739005367.apps.googleusercontent.com&response_type=code token id_token gsession&scope=https://www.googleapis.com/auth/userinfo.email https://www.googleapis.com/auth/plus.login https://www.googleapis.com/auth/userinfo.profile&state=425511939|0.2912748339&access_type=offline&request_visible_actions=http://schemas.google.com/AddActivity http://schemas.google.com/ListenActivity http://schemas.google.com/CreateActivity&after_redirect=keep_open&cookie_policy=single_host_origin&prompt=none&include_granted_scopes=true&proxy=oauth2relay751149297&redirect_uri=postmessage&origin=https://soundcloud.com&gsiwebsdk=1&authuser=0&jsh=m;/_/scs/apps-static/_/js/k=oz.gapi.en.TA32fes-0yU.O/m=__features__/am=AQ/rt=j/d=1/rs=AGLTcCOuWXPCbMjoOmrZx_gBsAG8J20NLA