谷歌加上跨站点身份Android到PHP访问令牌

Question

我有一个客户端和服务器应用程序,一旦在客户端(android)上验证后,需要在SERVER端访问用户g +配置文件

我在这个客户端获得了一个ID令牌

@Background
void getAccessToken() {


    String scopes = "audience:server:client_id:xxxxxxxxxxxxx.apps.googleusercontent.com";

    Log.d(TAG,scopes);

    try {

        accessToken = GoogleAuthUtil.getToken(this,mPlusClient.getAccountName(),scopes);

        Log.d(TAG,accessToken);

        getPlusFriends();

    }
    catch (IOException transientEx) {
        Log.e(TAG, transientEx.getMessage());
        return;
    }
    catch (UserRecoverableAuthException e) {
        Log.e(TAG, e.getMessage());
        accessToken = null;
    }
    catch (GoogleAuthException authEx) {
        Log.e(TAG, authEx.getMessage());

        return;
    }
    catch (Exception e) {
        throw new RuntimeException(e);
    }
}

这将给我一个长ID标记,如本博客中所述http://www.tbray.org/ongoing/When/201x/2013/04/04/ID-Tokens

我想我应该将该令牌发送到我需要做某事的服务器,将其转换为access_token.我可以验证id令牌吗？发送一个卷曲请求是好的

https://www.googleapis.com/oauth2/v1/tokeninfo?id_token=

它会像这样返回一个json字符串

{
"issuer": "accounts.google.com",
"issued_to": "xxxxxxxxxxxxxx.apps.googleusercontent.com",
"audience": "xxxxxxxxxxxxxx.apps.googleusercontent.com",
"user_id": "123456",
"expires_in": 3362,
"issued_at": 1382577073,
"email": "myemail@something",
"verified_email": true
}

php服务器

\Config::load('google_api', 'google');

 $key = Config::get('google.client_id');
 $secret = Config::get('google.client_secret');
 $scopes = Config::get('google.scopes');

 $client = new Google_Client();

 $client->setClientId($key);
 $client->setClientSecret($secret);
 $client->setScopes($scopes);
 $client->setState('offline');
 $client->authenticate($token);

其中issued_to是我在Google API控制台中的Android应用程序的客户端ID,而受众是我的网络应用程序的客户端,到目前为止,我认为似乎是正确的.

所以现在我正在使用php客户端,并不确定从那里做什么.我尝试使用id令牌验证api客户端,但我得到错误400 - 获取OAuth2访问令牌时出错,消息:'invalid_grant'

我不确定我是否应该尝试使用该ID令牌验证PHP Google+客户端,或者是否应该如何将其替换为访问令牌

Answer 1

您是否阅读了应用程序文档的服务器端访问权限？

您需要的是一次性授权代码,您将其传递给服务器,服务器会交换该授权代码以进行访问并刷新令牌.ID令牌对于验证应用和用户是否是他们所声称的用户非常有用,但不能用于让您的服务器访问数据.

您的代码很接近,但缺少一些关键部分可以使其工作,例如指定应用程序最初在PlusClient配置中请求的应用程序活动类型,并且您的范围字符串需要更改.

取自文档:

Bundle appActivities = new Bundle();
appActivities.putString(GoogleAuthUtil.KEY_REQUEST_VISIBLE_ACTIVITIES,
          "<app-activity1> <app-activity2>");
String scopes = "oauth2:server:client_id:<server client-id>:api_scope:<scope1> <scope2>";
String code = null;
try {
  code = GoogleAuthUtil.getToken(
    this,                             // Context context
    mPlusClient.getAccountName(),     // String accountName
    scopes,                           // String scope
    appActivities                     // Bundle bundle
  );

} catch (IOException transientEx) {
  // network or server error, the call is expected to succeed if you try again later.
  // Don't attempt to call again immediately - the request is likely to
  // fail, you'll hit quotas or back-off.
  ...
  return;
} catch (UserRecoverableAuthException e) {
  // Recover
  code = null;
} catch (GoogleAuthException authEx) {
  // Failure. The call is not expected to ever succeed so it should not be
  // retried.
  ...
  return;
} catch (Exception e) {
  throw new RuntimeException(e);
}

该code说你回来,你传递给你的服务器.请参阅PHP快速入门中的第98行,了解如何使用PHP客户端库执行代码交换(以及其他步骤,如验证ID).您还需要配置PHP客户端以进行脱机访问.基础是:

$client = new apiClient();
$client->setClientId('From APIs console');
$client->setClientSecret('From APIs console');
$client->setScopes('exact same list of scopes as Android app, space separated');
$client->setRedirectUri('postmessage');  // Used in hybrid flows
$client->setState('offline');
// Exchange authorization code for access and refresh tokens
$client->authenticate($code);
$token = json_decode($client->getAccessToken());