Android OAuth:retrieveAccessToken() 上出现异常
我正在为我的 Android 应用程序设置 OAuth。为了测试它,我做了以下操作: 在我的项目中添加了signpost-core-1.2.1.1.jar和signpost-commonshttp4-1.2.1.1.jar,添加了变量“CommonsHttpOAuthConsumer消费者”和“CommonsHttpOAuthProvider提供者”,并在单击按钮时执行以下操作:
consumer = new CommonsHttpOAuthConsumer("xxx", "yyy");
provider = new CommonsHttpOAuthProvider("https://api.twitter.com/oauth/request_token",
"https://api.twitter.com/oauth/access_token",
"https://api.twitter.com/oauth/authorize");
oauthUrl = provider.retrieveRequestToken(consumer, "myapp://twitterOauth");
persistOAuthData();
this.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(oauthUrl)));
persistOAuthData() 执行以下内容:
protected void persistOAuthData()
{
try
{
FileOutputStream providerFOS = this.openFileOutput("provider.dat", MODE_PRIVATE);
ObjectOutputStream providerOOS = new ObjectOutputStream(providerFOS);
providerOOS.writeObject(this.provider);
providerOOS.close();
FileOutputStream consumerFOS = this.openFileOutput("consumer.dat", MODE_PRIVATE);
ObjectOutputStream consumerOOS = new ObjectOutputStream(consumerFOS);
consumerOOS.writeObject(this.consumer);
consumerOOS.close();
}
catch (Exception e) { }
}
因此,在打开浏览器之前保存消费者和提供者,如此处。
在 onResume() 方法中,我加载提供者和消费者数据并执行以下操作:
Uri uri = this.getIntent().getData();
if (uri != null && uri.getScheme().equals("myapp") && uri.getHost().equals("twitterOauth"))
{
verifier = uri.getQueryParameter(oauth.signpost.OAuth.OAUTH_VERIFIER);
if (!verifier.equals(""))
{
loadOauthData();
try
{
provider.retrieveAccessToken(consumer, verifier);
}
catch (OAuthMessageSignerException e) {
e.printStackTrace();
} catch (OAuthNotAuthorizedException e) {
e.printStackTrace();
} catch (OAuthExpectationFailedException e) {
e.printStackTrace();
} catch (OAuthCommunicationException e) {
e.printStackTrace();
}
}
}
那么,什么有效: 1)我确实得到了一个requestToken和一个requestSecret。 2)我确实得到了oauthUrl。 3) 我被引导至浏览器页面以授权我的应用程序 4) 我被重定向到我的应用程序。 5)我确实得到了验证器。 但调用retrieveAccessToken(consumer, verifier) 失败,并出现OAuthCommunicationException,显示“与服务提供者的通信失败:null”。
有谁知道可能是什么原因?有些人似乎在获取 requestToken 时遇到问题,但这工作得很好。我想知道我的应用程序还包含分段上传所需的 apache-mime4j-0.6.jar 和 httpmime-4.0.1.jar 是否可能是一个问题。
I'm setting up OAuth for my Android app. To test it I did the following:
Added signpost-core-1.2.1.1.jar and signpost-commonshttp4-1.2.1.1.jar to my project, added the variables "CommonsHttpOAuthConsumer consumer" and "CommonsHttpOAuthProvider provider" and did the following when the button is clicked:
consumer = new CommonsHttpOAuthConsumer("xxx", "yyy");
provider = new CommonsHttpOAuthProvider("https://api.twitter.com/oauth/request_token",
"https://api.twitter.com/oauth/access_token",
"https://api.twitter.com/oauth/authorize");
oauthUrl = provider.retrieveRequestToken(consumer, "myapp://twitterOauth");
persistOAuthData();
this.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(oauthUrl)));
persistOAuthData() does the following:
protected void persistOAuthData()
{
try
{
FileOutputStream providerFOS = this.openFileOutput("provider.dat", MODE_PRIVATE);
ObjectOutputStream providerOOS = new ObjectOutputStream(providerFOS);
providerOOS.writeObject(this.provider);
providerOOS.close();
FileOutputStream consumerFOS = this.openFileOutput("consumer.dat", MODE_PRIVATE);
ObjectOutputStream consumerOOS = new ObjectOutputStream(consumerFOS);
consumerOOS.writeObject(this.consumer);
consumerOOS.close();
}
catch (Exception e) { }
}
So, the consumer and the provider are saved before opening the browser, like described here.
In the onResume() method I load the provider and consumer data and do the following:
Uri uri = this.getIntent().getData();
if (uri != null && uri.getScheme().equals("myapp") && uri.getHost().equals("twitterOauth"))
{
verifier = uri.getQueryParameter(oauth.signpost.OAuth.OAUTH_VERIFIER);
if (!verifier.equals(""))
{
loadOauthData();
try
{
provider.retrieveAccessToken(consumer, verifier);
}
catch (OAuthMessageSignerException e) {
e.printStackTrace();
} catch (OAuthNotAuthorizedException e) {
e.printStackTrace();
} catch (OAuthExpectationFailedException e) {
e.printStackTrace();
} catch (OAuthCommunicationException e) {
e.printStackTrace();
}
}
}
So, what works:
1) I do get a requestToken and a requestSecret.
2) I do get the oauthUrl.
3) I am directed to the browser page to authorize my app
4) I am getting redirected to my app.
5) I do get the verifier.
But calling retrieveAccessToken(consumer, verifier) fails with an OAuthCommunicationException saying "Communication with the service provider failed: null".
Does anyone know what might be the reason? Some people seem to have problems getting the requestToken, but that just works fine. I wonder if it might be a problem that my app has also included the apache-mime4j-0.6.jar and httpmime-4.0.1.jar which I need for multipart upload.
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好吧,我明白了。也许这对其他人有帮助:
首先,您不需要保存整个消费者和提供者对象。您需要做的就是存储 requestToken 和 requestSecret。幸运的是,这些是字符串,因此您不需要将它们写入磁盘或其他任何内容。只需将它们存储在共享首选项或类似的东西中即可。
现在,当您被浏览器重定向并调用 onResume() 方法时,只需执行以下操作:
就这样,您现在可以使用 getToken() 和 getTokenSecret() 接收令牌和秘密。
Okay, I figured it out. Maybe this is helpful to others:
First of all, you do not need to save the whole consumer and provider object. All you need to do is store the requestToken and the requestSecret. Luckily, those are Strings, so you don't need to write them to disk or anything. Just store them in the sharedPreferences or something like that.
Now, when you get redirected by the browser and your onResume() method is called, just do the following:
That's it, you can receive the token and the secret with getToken() and getTokenSecret(), now.