Google应用引擎imap无效凭据

我正在尝试获取我的用户的电子邮件。我有一个服务帐户设置和来自客户端库的访问令牌。我将这些详细信息输入到此处找到的xoauth库https://developers.google.com/gmail/xoauth2_libraries。但我不断收到无效的凭据错误。一个帐户有效，其管理员/模拟帐户但没有其他人工作。这是一个PHP应用程序可以有人请帮助。Google应用引擎imap无效凭据

$client = new Google_Client(); 
$client -> setApplicationName("TTS Dashboard"); 
$client -> setClientId(CLIENTID); 
$client -> setClientSecret(CLIENTSECRET); 

$oauth2 = new Google_Service_Oauth2($client); 
$directoryService = new Google_Service_Directory($client); 
$driveService = new Google_Service_Drive($client); 
$calendarService = new Google_Service_Calendar($client); 

if (isset($_SESSION['service_token'])) { 
    $client -> setAccessToken($_SESSION['service_token']); 
} 

$path = 'http://' . $_SERVER['HTTP_HOST'] . "/static/" . KEYFILEPATH; 
$key = file_get_contents($path); 
$cred = new Google_Auth_AssertionCredentials(SERVICEACCOUNTEMAIL, $scopes, $key); 
$cred -> sub = $impersonatedEmailAddress; 

$client -> setAssertionCredentials($cred); 

$client -> getAuth() -> refreshTokenWithAssertion($cred); 

if ($client -> getAuth() -> isAccessTokenExpired()) { 
    $client -> getAuth() -> refreshTokenWithAssertion($cred); 
} 

$_SESSION['service_token'] = $client -> getAccessToken(); 

function GetAccessTokenString() { 
    $accessToken = $_SESSION['service_token']; 
    $token = json_decode($accessToken, true); 
    $tokenString = $token['access_token']; 
    return $tokenString; 
} 
// Get access token string value 
$tokenString = GetAccessTokenString(); 
tryImapLogin($studentEmail, $tokenString);

来源

2014-05-16 Hayden Morris

随着服务帐户和域范围的授权，你需要创建一个访问令牌为每个用户，这就是你需要模拟每个用户，一前一后。

管理员访问令牌不会让您访问其他用户的邮箱。

来源

2014-05-16 04:46:05 David

Google应用引擎imap无效凭据

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