什么是$ C $下获得一个刷新的Facebook标记在一个Android应用程序？ [英] What is the code for getting a refreshed Facebook token in an Android app?
问题描述
我开发一个Android应用程序。随着Facebook的offline_access许可即将去precation我试图使用图形API扩展Facebook的令牌。
I am developing an Android app. With the impending deprecation of Facebook's offline_access permission I am trying to use the Graph API to extend the Facebook token.
https://graph.facebook.com/oauth/access_token?
client_id=APP_ID&
client_secret=APP_SECRET&
grant_type=fb_exchange_token&
fb_exchange_token=EXISTING_ACCESS_TOKEN
任何人都可以提供详尽code，演示了如何实现code以上成一个Android应用程序，并得到刷新Facebook的令牌？
Can anyone provide detailed code that demonstrates how to implement the code above into an android app and obtain the refreshed Facebook token?
感谢您的时间。
更新二：
进展（我认为）！
使用的完整URL与facebook的请求方法的结果基本URL被添加到URL的开始 因此，而不是
Using the full URL with the facebook request method results in the base URL being added to the the beginning of the URL So instead of
String refreshUrl = "https://graph.facebook.com/oauth/access_token?client_id=12345678910&client_secret=abcdefghijklmnopqrstuvwxyz&grant_type=fb_exchange_token&fb_exchange_token="+currentAccessToken;
应该用
String refreshUrl = "oauth/access_token?client_id=12345678910&client_secret=abcdefghijklmnopqrstuvwxyz&grant_type=fb_exchange_token&fb_exchange_token="+currentAccessToken;
不过我现在得到响应{错误：{消息：错误验证应用程序无效的应用程序ID，类型：OAuthException，code：190}}
However I am now getting the response {"error":{"message":"Error validating application. Invalid application ID.","type":"OAuthException","code":190}}
更新一：
下面是我我试过了。的code结束，也就是说的onComplete上listerner被调用，但响应中不包含新的接入令牌或者过期值。
Here is what I have I tried. The code completes, that is OnComplete on the listerner is called, BUT the response does not contain a new access token or expiry value.
void refreshWithGraph() {
AsyncFacebookRunner extendingAsyncRunner = new AsyncFacebookRunner(facebook);
Bundle parameters = new Bundle();
//the variable currentAccessToken is obtained after authorisation is complete using currentAccessToken = facebook.getAccessToken();
String refreshUrl = "https://graph.facebook.com/oauth/access_token?client_id=12345678910&client_secret=abcdefghijklmnopqrstuvwxyz&grant_type=fb_exchange_token&fb_exchange_token="+currentAccessToken;
extendingAsyncRunner.request(refreshUrl, parameters, new RefreshListener(), null );
}
下面是我的版本RefreshListener ...
Here is my version of RefreshListener...
//REFRESH LISTENER
public class RefreshListener extends BaseRequestListener {
public void onComplete(final String response, Object state) {
try {
final JSONObject json = Util.parseJson(response);
runOnUiThread(new Runnable() {
@Override
public void run() {
tvRefreshResponse.setText("IN REFRESH LISTENER ONCOMPLETE\nResponse is " + response);
tvRefreshToken.setText("IN REFRESH LISTENER ONCOMPLETE\nToken is " + facebook.getAccessToken());
tvRefreshExpiry.setText("IN REFRESH LISTENER ONCOMPLETE\nFacebook expiry is " + millisecToDate(facebook.getAccessExpires()));
}
}); //end runOnUiThread
} catch (JSONException e) {
runOnUiThread(new Runnable() {
@Override
public void run() {
tvRefreshResponse.setText("IN REFRESH LISTENER ONCOMPLETE CAUGHT JSON EXCEPTION \nResponse is " + response);
}
}); //end runOnUiThread
} catch (FacebookError fe) {
runOnUiThread(new Runnable() {
@Override
public void run() {
tvRefreshResponse.setText("IN REFRESH LISTENER ONCOMPLETE CAUGHT FACEBOOK ERROR \nResponse is " + response);
}
}); //end runOnUiThread
} //end catch Facebook error
} //end onComplete
@Override
public void onIOException(IOException e, Object state) {
tvRefreshResponse.setText("IN REFRESH LISTENER IOEXCEPTION \nException is "+ e.getLocalizedMessage());
}
@Override
public void onFileNotFoundException(FileNotFoundException e, Object state) {
tvRefreshResponse.setText("IN REFRESH LISTENER FILE NOT FOUND EXCEPTION \nException is "+ e.getLocalizedMessage());
}
@Override
public void onMalformedURLException(MalformedURLException e, Object state) {
tvRefreshResponse.setText("IN REFRESH MALFORMED URL \nException is "+ e.getLocalizedMessage());
}
@Override
public void onFacebookError(FacebookError e, Object state) {
tvRefreshResponse.setText("IN REFRESH ONFACEBOOK ERROR \nException is "+ e.getLocalizedMessage());
}
} //end RefreshListener
的code结束，也就是说在listerner的onComplete被调用，但响应中不包含新的接入令牌或者过期值。该反应是......
The code completes, that is OnComplete on the listerner is called, BUT the response does not contain a new access token or expiry value. The response is...
{"id":"https:\/\/graph.facebook.com\/oauth\/access_token","shares":78,"comments":1}
当我把相同的URL（用字母当前令牌值）到网络浏览器的响应还带有一个访问令牌。
When I put the same URL (with a alphanumeric current token value) into a web browser the response DOES include an access token.
相关信息
Facebook的offline_access同意将pcated于5月1日去$ P $，2012
Facebook's offline_access permission will be deprecated on 1st of May, 2012
请不要建议使用onResume的extendAccessTokenIfNeeded功能（）来代替。 <一href="http://stackoverflow.com/questions/10073426/is-it-possible-to-extend-facebook-tokens-with-extendaccesstokenifneeded-in-an-an">I我也遇到了麻烦的与，这是为什么我寻找到的图形API令牌提神的原因： - ）
Please don't suggest using the extendAccessTokenIfNeeded function in onResume() instead. I am also having trouble with that and it is the reason why I am looking into the Graph API token refreshing :-)
相关堆栈溢出的问题的
Related Stack Overflow Questions
<一个href="http://stackoverflow.com/questions/10073426/is-it-possible-to-extend-facebook-tokens-with-extendaccesstokenifneeded-in-an-an">Is它可以扩展Facebook的令牌与extendAccessTokenIfNeeded在一个Android应用程序？（我的问题）
<一个href="http://stackoverflow.com/questions/9930311/how-would-offline-access-work-after-de$p$pcation-after-may-1st">How 5月1日之后将offline_access后去precation工作？
<一个href="http://stackoverflow.com/questions/9549689/protecting-app-secret-for-extendaccesstoken-usage-java-android">Protecting应用程序秘密extendAccessToken使用（Java / Android的）
有关Facebook的链接的
Relevant Facebook links
Facebook的offline_access权限去precation
推荐答案
说实话，我有点糊涂了 - 看起来你拥有了一切的这一切 - 这是简单的。但是，让我试着回答你的问题。下面是我的C＃项目中的code，其中我对应用程序的令牌我的意见的情况下，你不熟悉C＃语言和类：
To be honest, I'm a bit confused - looks like you have everything to get it done - and it's simple. But let me try to answer your question. Here is the code from my C# project where I extend app's token with my comments in case you are not familiar with C# languages and classes:
string currentToken = "token from somewhere";
// WebClient is used to send GET request to the given URL
// and receive the response
using (var req = new System.Net.WebClient())
{
// create URL string and fill it in with data (app Id, secret, and current token)
var extendTokenUrl = string.Format(
"https://graph.facebook.com/oauth/access_token?client_id={0}&client_secret={1}&grant_type=fb_exchange_token&fb_exchange_token={2}",
FB_APP_ID,
FB_APP_SECRET,
currentToken);
// send GET request and download the response
var response = req.DownloadString(extendTokenUrl);
// if all is good, response will be a string which looks like this:
// access_token=<<THE TOKEN GOES HERE>>
var newToken = response.Substring("access_token=".Length);
// now save newToken in your DB INSTEAD of currentToken -
// so all calls will be made with extended token
SaveTokenInDB(newToken);
}
希望帮助，并把这种成Java应该是简单的。
hope that helps, and translating this into Java should be straightforward.
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