使用google-api-dotnet-client插入Google+时刻 [英] Google+ insert moment using google-api-dotnet-client

问题描述

我正在尝试使用dotnet-client在Google+中撰写活动。问题是，我似乎无法正确地获得我的客户端应用程序的配置。根据 Google+登录配置和这是SO问题，我们需要添加requestvisibleactions参数。我做到了，但没有奏效。我使用的范围 https://www.googleapis.com/auth/plus.login ，我甚至添加了范围 https：// www .googleapis.com / auth / plus.moments.write 但插入仍然无效。

这就是我的请求网址：

https：//帐户？.google.com / ServiceLogin服务= LSO&安培;被动= 1209600&安培;继续= HTTPS：？//accounts.google.com/o/oauth2/auth范围％3Dhttps：//www.googleapis.com/auth/plus.login ％2Bhttps：//www.googleapis.com/auth/plus.moments.write%26response_type%3Dcode%26redirect_uri%3Dhttp：//本地主机/％26state％3D％26requestvisibleactions％3Dhttp：//schemas.google.com/AddActivity% 26client_id％3D000.apps.googleusercontent.com％26request_visible_actions％3Dhttp：//schemas.google.com/AddActivity%26hl%3Den%26from_login%3D1%26as%3D-1fbe06f1c6120f4d& ltmpl =弹出&安培; SHDF = Cm4LEhF0aGlyZFBhcnR5TG9nb1VybBoADAsSFXRoaXJkUGFydHlEaXNwbGF5TmFtZRoHQ2hpa3V0bwwLEgZkb21haW4aB0NoaWt1dG8MCxIVdGhpcmRQYXJ0eURpc3BsYXlUeXBlGgdERUZBVUxUDBIDbHNvIhTeWybcoJ9pXSeN2t-k8A4SUbfhsygBMhQivAmfNSs_LkjXXZ7bPxilXgjMsQ&安培; SCC = 1

从这里你可以看到有一个 request_visible_actions ，我甚至添加了一个没有下划线的情况下，我得到的参数是错误的（ requestvisibleactions ）。

让我说我的应用程序正在通过API成功验证。我可以在通过身份验证后获取用户的个人资料，并且它位于我的应用失败的插入时刻部分。我的插入代码：

  var body = new Moment（）; 
 var target = new ItemScope（）; 
 target.Id = referenceId; 
 target.Image = image; 
 target.Type =http://schemas.google.com/AddActivity; 
 target.Description = description; 
 target.Name = caption; 
 
 body.Target = target; 
 body.Type =http://schemas.google.com/AddActivity; 
 
 var insert = 
 MomentsResource.InsertRequest（
 //这是一个有效的服务实例，因为我使用它来查询用户的配置文件
 _plusService，
 body，
 id，
 MomentsResource.Collection.Vault）; 
 
瞬间结果=空; 
尝试
 {
 result = insert.Fetch（）; 
} 
 catch（ThreadAbortException）
 {
 //用户还没有被认证并且被转发到授权页面。 
 throw; 
} 
 catch（Google.GoogleApiRequestException requestEx）
 {
 //这里我得到了401未授权错误
 
} 
 catch（Exception ex）
 {
 
}`
  

解决方案

嗯就这么简单！也许不会？我正在回答我自己的问题，并因此接受它作为答案（在几天之后），以便引导具有相同问题的其他人。但是我肯定会对Gus的答案进行投票，因为这导致我修复了我的代码。

所以根据上面写的@class回答和在他的博客中解释密钥要成功创建一个时刻，请添加 request_visible_actions 参数。我这样做了，但我的请求仍然失败，这是因为我错过了一件重要的事情。您需要添加一个参数，即 access_type ，并且它应该设置为 offline code> 即可。 OAuth请求至少应如下所示： https://accounts.google.com/o/oauth2/auth?scope=https://www.googleapis.com & rel =nofollow> http://schemas.google.com/AddActivity&access_type=offline 。



要获得完整且正确的客户端代码，您可以在此处获取Gus的示例或下载整个dotnet客户端库，包括源代码和示例并添加下面添加的内容。您应该记住的最重要的事情是修改Google API的 AuthorizationServerDescription 。这是我的版本验证器：

  public static OAuth2Authenticator< WebServerClient> CreateAuthenticator（
 string clientId，string clientSecret）
 {
 if（string.IsNullOrWhiteSpace（clientId））
 throw new ArgumentException（clientId can not empty）; 
 
 if（string.IsNullOrWhiteSpace（clientSecret））
抛出新的ArgumentException（clientSecret不能为空）; 
 
 var description = GoogleAuthenticationServer.Description; 
 
 var uri = description.AuthorizationEndpoint.AbsoluteUri; 
 //这是在Gus的博客网站
 //以及Google的（https://developers.google.com/+/web/signin/）
 //这不是以
 //的方式在dotnetclient示例中，并且您需要了解OAuth和DNOA如何工作。 
 //我已经拥有了，请查看我原来的帖子，
 //我认为这会让我度过一天。 （uri.IndexOf（request_visible_actions）< 1）
 {
 var param =（uri.IndexOf（'？'）> 0）？
 if &安培; ：？; 
 description.AuthorizationEndpoint = new Uri（
 uri + param + 
request_visible_actions = http：//schemas.google.com/AddActivity）; 
} 
 
 //这是我一直想念的东西！ 
 //他们忘了告诉我们这件事，还是我错过了这个地方？ 
 uri = description.AuthorizationEndpoint.AbsoluteUri; （uri.IndexOf（'offline'）< 1）
 {
 var param =（uri.IndexOf（'？'）> 0）？
 if &安培; ：？; 
 description.AuthorizationEndpoint = 
 new Uri（uri + param +access_type = offline）; 
} 
 
 //注册认证者。 
 var provider = new WebServerClient（描述）
 {
 ClientIdentifier = clientId，
 ClientSecret = clientSecret，
}; 
 var authenticator = 
 new OAuth2Authenticator< WebServerClient>（provider，GetAuthorization）
 {NoCaching = true}; 
返回认证者; 
 
 $ / code>  我的代码从未工作过，它永远不会工作。现在我想知道为什么？有一些解释是很好的。
 
I am trying to write an activity in Google+ using the dotnet-client. The issue is that I can't seem to get the configuration of my client app correctly. According to the Google+ Sign-In configuration and this SO question we need to add the requestvisibleactions parameter. I did that but it did not work. I am using the scope https://www.googleapis.com/auth/plus.login and I even added the scope https://www.googleapis.com/auth/plus.moments.write but the insert still did not work. 

This is what my request url looks like: 

https://accounts.google.com/ServiceLogin?service=lso&passive=1209600&continue=https://accounts.google.com/o/oauth2/auth?scope%3Dhttps://www.googleapis.com/auth/plus.login%2Bhttps://www.googleapis.com/auth/plus.moments.write%26response_type%3Dcode%26redirect_uri%3Dhttp://localhost/%26state%3D%26requestvisibleactions%3Dhttp://schemas.google.com/AddActivity%26client_id%3D000.apps.googleusercontent.com%26request_visible_actions%3Dhttp://schemas.google.com/AddActivity%26hl%3Den%26from_login%3D1%26as%3D-1fbe06f1c6120f4d&ltmpl=popup&shdf=Cm4LEhF0aGlyZFBhcnR5TG9nb1VybBoADAsSFXRoaXJkUGFydHlEaXNwbGF5TmFtZRoHQ2hpa3V0bwwLEgZkb21haW4aB0NoaWt1dG8MCxIVdGhpcmRQYXJ0eURpc3BsYXlUeXBlGgdERUZBVUxUDBIDbHNvIhTeWybcoJ9pXSeN2t-k8A4SUbfhsygBMhQivAmfNSs_LkjXXZ7bPxilXgjMsQ&scc=1

As you can see from there that there is a request_visible_actions and I even added one that has no underscore in case I got the parameter wrong (requestvisibleactions). 

Let me say that my app is being authenticated successfully by the API. I can get the user's profile after being authenticated and it is on the "insert moment" part that my app fails. My insert code:
        var body = new Moment();
        var target = new ItemScope();
        target.Id = referenceId;
        target.Image = image;
        target.Type = "http://schemas.google.com/AddActivity";
        target.Description = description;
        target.Name = caption;

        body.Target = target;
        body.Type = "http://schemas.google.com/AddActivity";

        var insert =
            new MomentsResource.InsertRequest(
                // this is a valid service instance as I am using this to query the user's profile
                _plusService,
                body,
                id,
                MomentsResource.Collection.Vault);

        Moment result = null;
        try
        {
            result = insert.Fetch();
        }
        catch (ThreadAbortException)
        {
            // User was not yet authenticated and is being forwarded to the authorization page.
            throw;
        }
        catch (Google.GoogleApiRequestException requestEx)
        {                
            // here I get a 401 Unauthorized error

        }
        catch (Exception ex)
        {

        }            `

解决方案
Ah it's that simple! Maybe not? I am answering my own question and consequently accept it as the answer (after a few days of course) so others having the same issue may be guided. But I will definitely up-vote Gus' answer for it led me to the fix for my code.

So according to @class answer written above and as explained on his blog the key to successfully creating a moment is adding the request_visible_actions parameter. I did that but my request still failed and it is because I was missing an important thing. You need to add one more parameter and that is the access_type and it should be set to offline. The OAuth request, at a minimum, should look like: https://accounts.google.com/o/oauth2/auth?scope=https://www.googleapis.com/auth/plus.login&response_type=code&redirect_uri=http://localhost/&request_visible_actions=http://schemas.google.com/AddActivity&access_type=offline.

For the complete and correct client code you can get Gus' example here or download the entire dotnet client library including the source and sample and add what I added below. The most important thing that you should remember is modifying your AuthorizationServerDescription for the Google API. Here's my version of the authenticator:
public static OAuth2Authenticator<WebServerClient> CreateAuthenticator(
        string clientId, string clientSecret)
{
    if (string.IsNullOrWhiteSpace(clientId))
        throw new ArgumentException("clientId cannot be empty");

    if (string.IsNullOrWhiteSpace(clientSecret))
        throw new ArgumentException("clientSecret cannot be empty");

    var description = GoogleAuthenticationServer.Description;

    var uri = description.AuthorizationEndpoint.AbsoluteUri;
    // This is the one that has been documented on Gus' blog site 
    // and over at Google's (https://developers.google.com/+/web/signin/)
    // This is not in the dotnetclient sample by the way 
    // and you need to understand how OAuth and DNOA works.
    // I had this already, see my original post, 
    // I thought it will make my day.
    if (uri.IndexOf("request_visible_actions") < 1)
    {
        var param = (uri.IndexOf('?') > 0) ? "&" : "?";
        description.AuthorizationEndpoint = new Uri(
            uri + param +
            "request_visible_actions=http://schemas.google.com/AddActivity");
    }

    // This is what I have been missing! 
    // They forgot to tell us about this or did I just miss this somewhere?
    uri = description.AuthorizationEndpoint.AbsoluteUri;
    if (uri.IndexOf("offline") < 1)
    {
        var param = (uri.IndexOf('?') > 0) ? "&" : "?";
        description.AuthorizationEndpoint = 
                new Uri(uri + param + "access_type=offline");
    }

    // Register the authenticator.
    var provider = new WebServerClient(description)
    {
        ClientIdentifier = clientId,
        ClientSecret = clientSecret,                  
    };            
    var authenticator =
        new OAuth2Authenticator<WebServerClient>(provider, GetAuthorization)
                 { NoCaching = true };
    return authenticator;
}
Without the access_type=offline my code never worked and it will never work. Now I wonder why? It would be good to have some explanation.

                        
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