我试图在我的非MVC .NET Web应用程序中使用
Google Calendar API. (这似乎是一个重要的区别.)
我试图使用Google的this example和Daimto的this example的代码,以及一些related posts here的一些有用的提示.
我写了以下方法：
public void GetUserCredential( String userName )
{
String clientId = ConfigurationManager.AppSettings[ "Google.ClientId" ]; //From Google Developer console https://console.developers.google.com
String clientSecret = ConfigurationManager.AppSettings[ "Google.ClientSecret" ]; //From Google Developer console https://console.developers.google.com
String[] scopes = new string[] {
Google.Apis.Calendar.v3.CalendarService.Scope.Calendar
};
// here is where we Request the user to give us access,or use the Refresh Token that was prevIoUsly stored in %AppData%
UserCredential credential = GoogleWebAuthorizationBroker.AuthorizeAsync( new ClientSecrets
{
ClientId = clientId,ClientSecret = clientSecret
},scopes,userName,CancellationToken.None,new FileDataStore( "c:\\temp" ) ).Result;
// TODO: Replace FileDataStore with DatabaseDataStore
}
问题是,当Google的OAuth2页面被调用时,redirect_uri将继续设置为http：// localhost：< some-random-port> / authorize.我不知道如何将其设置为其他内容,如AuthorizeAsync生成的以下示例URL所示：
https://accounts.google.com/o/oauth2/auth?access_type=offline
&response_type=code
&client_id=********.apps.googleusercontent.com
&redirect_uri=http:%2F%2Flocalhost:40839%2Fauthorize%2F
&scope=https:%2F%2Fwww.googleapis.com%2Fauth%2Fcalendar
Google会通过一个redirect_uri_mismatch错误页面回复一条消息：
“请求中的重定向URI：http://localhost:XXXXX/authorize/与注册的重定向URI不匹配”
我只能在我的Google开发人员控制台凭证页面中注册这么多重定向URI.我不想注册65535个端口,我想在我的网站上使用除/授权之外的页面.具体来说,在开发过程中,我想使用http：// localhost：888 / Pages / GoogleApiRedirect,但是不知道我在哪里设置这个,除了我在开发者控制台中所做的一切.
如何显式设置redirect_uri的值？我也以“这种做法完全错误”的形式开放回应.
编辑：
在过去一天玩过之后,我发现通过使用本机应用程序的客户端ID /客户端密钥而不是Web应用程序,我至少可以访问Google的Web授权页面,而不会抱怨redirect_uri_mismatch.这仍然是不可接受的,因为它仍然返回到http：// localhost：< some-random-port> / authorize,这在我的Web应用程序的控制之外.
解决方法
你可以使用这段代码：(原始想法从
http://coderissues.com/questions/27512300/how-to-append-login-hint-usergmail-com-to-googlewebauthorizationbroker)
dsAuthorizationBroker.RedirectUri = "my localhost redirect uri"; UserCredential credential = await dsAuthorizationBroker.AuthorizeAsync(...
dsAuthorizationBroker.cs
using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using Google.Apis.Auth.OAuth2;
using Google.Apis.Auth.OAuth2.Flows;
using Google.Apis.Auth.OAuth2.Requests;
using Google.Apis.Util.Store;
namespace OAuth2
{
public class dsAuthorizationBroker : GoogleWebAuthorizationBroker
{
public static string RedirectUri;
public new static async Task<UserCredential> AuthorizeAsync(
ClientSecrets clientSecrets,IEnumerable<string> scopes,string user,CancellationToken taskCancellationToken,IDataStore dataStore = null)
{
var initializer = new GoogleAuthorizationCodeFlow.Initializer
{
ClientSecrets = clientSecrets,};
return await AuthorizeAsyncCore(initializer,user,taskCancellationToken,dataStore).ConfigureAwait(false);
}
private static async Task<UserCredential> AuthorizeAsyncCore(
GoogleAuthorizationCodeFlow.Initializer initializer,IDataStore dataStore)
{
initializer.Scopes = scopes;
initializer.DataStore = dataStore ?? new FileDataStore(Folder);
var flow = new dsAuthorizationCodeFlow(initializer);
return await new AuthorizationCodeInstalledApp(flow,new LocalServerCodeReceiver())
.AuthorizeAsync(user,taskCancellationToken).ConfigureAwait(false);
}
}
public class dsAuthorizationCodeFlow : GoogleAuthorizationCodeFlow
{
public dsAuthorizationCodeFlow(Initializer initializer)
: base(initializer) { }
public override AuthorizationCodeRequestUrl
CreateAuthorizationCodeRequest(string redirectUri)
{
return base.CreateAuthorizationCodeRequest(dsAuthorizationBroker.RedirectUri);
}
}
}
