好的,我正在为Android开发一个Tumblr客户端,我已经尝试了一个星期让OAuth起作用,但一直失败。以下是我的进展情况:
用户启动应用程序。主活动的onCreate方法执行以下操作:
settings = getSharedPreferences(PREFS_NAME, 0);
authToken=settings.getString("OauthToken", "none");
authTokenSecret=settings.getString("OauthSecret", "none");
if(authToken=="none" || authTokenSecret=="none"){
Intent i = new Intent(getApplicationContext(),Authentication.class);
startActivity(i);
}
这将启动一个包含WebView的身份验证活动。该活动成功获取请求令牌,并将WebView发送到Tumblr登录屏幕。应用程序要求用户允许访问其数据,用户按下“允许”按钮,我的WebViewClient捕获回调URL,并执行以下操作:
String[] token = helper.getVerifier(url);
if (token != null) {
try {
String accessToken[] = helper.getAccessToken(token[1]);
editor.putString("OauthToken", accessToken[0]);
editor.putString("OauthSecret", accessToken[1]);
editor.commit();
} catch (Exception e) {
e.printStackTrace();
}
}
finish();
辅助类的getAccessToken和getVerifier方法如下所示:
public String[] getVerifier(String myUrl) {
// extract the token if it exists
Uri uri = Uri.parse(myUrl);
if (uri == null) {
return null;
}
String token = uri.getQueryParameter("oauth_token");
String verifier = uri.getQueryParameter("oauth_verifier");
return new String[] { token, verifier };
}
public String[] getAccessToken(final String verifier)
throws OAuthMessageSignerException, OAuthNotAuthorizedException,
OAuthExpectationFailedException, OAuthCommunicationException {
new Thread(new Runnable() {
public void run() {
try {
mProvider.retrieveAccessToken(mConsumer, verifier);
} catch (OAuthMessageSignerException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (OAuthNotAuthorizedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (OAuthExpectationFailedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (OAuthCommunicationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}).start();
return new String[] {
mConsumer.getToken(), mConsumer.getTokenSecret()
};
}
然后我最终回到主应用程序屏幕,并尝试进行第一次API调用,以获取用户仪表板上最近的十篇帖子:
OAuthConsumer myConsumer = new CommonsHttpOAuthConsumer(MainView.authToken, MainView.authTokenSecret);
HttpGet request = new HttpGet("http://api.tumblr.com/v2/user/dashboard?limit=10");
myConsumer.sign(request);
HttpClient httpClient = new DefaultHttpClient();
HttpResponse response = httpClient.execute(request);
HttpEntity entity = response.getEntity();
BufferedReader reader = new BufferedReader(new InputStreamReader(entity.getContent()));
String line;
while ((line = reader.readLine()) != null) {
builder.append(line);
}
然而,我本应该得到一个漂亮的JSON响应,但我却得到了以下内容:
10-20 16:36:18.110: D/Result(22817): {"meta":{"status":401,"msg":"Not Authorized"},"response":[]}
那么我哪里做错了?谢谢。