问题
I have a Prediction app that's based on Google-api-php client version 1.0.0 latest. it's perfectly working in the localhost environment. but when I deploy same exact app into the hosting server environment it's gave me following issue.
THIS IS THE ERROR I GOT FROM HOSTING ENVIRONMENT
Fatal error: Uncaught exception 'Google_Auth_Exception' with message 'Error refreshing the OAuth2 token, message: '{ "error" : "invalid_grant" }'' in /home/predict/public_html/predict/Google/Auth/OAuth2.php:335 Stack trace: #0 /home/predict/public_html/predict/Google/Auth/OAuth2.php(294): Google_Auth_OAuth2->refreshTokenRequest(Array) #1 /home/predict/public_html/predict/index.php(40): Google_Auth_OAuth2->refreshTokenWithAssertion(Object(Google_Auth_AssertionCredentials)) #2 {main} thrown in /home/predict/public_html/predict/Google/Auth/OAuth2.php on line 335
*CURL and JSON extensions are working properly under Hosting environment.
THIS IS MY WHOLE SOURCE CODE
<?php
session_start();
set_include_path("Google" . PATH_SEPARATOR . get_include_path());
require_once 'Client.php';
require_once 'Service/Prediction.php';
$client_id = 'XXXXXXXXXX-uin70k09g5g6f05vqvdj9ch541c4spns.apps.googleusercontent.com';
$service_account_name = 'XXXXXXXXXX-uin70k09g5g6f05vqvdj9ch541c4spns@developer.gserviceaccount.com';
$key_file_location = 'APPKEY-d333c55a111a.p12';
if ($client_id == 'XXXXXXXXXX-uin70k09g5g6f05vqvdj9ch541c4spns.googleusercontent.com'
|| !strlen($service_account_name)
|| !strlen($key_file_location)) {
}
$client = new Google_Client();
$client->setApplicationName("Predition App");
$service = new Google_Service_Prediction($client);
if (isset($_SESSION['service_token'])) {
$client->setAccessToken($_SESSION['service_token']);
}
$key = file_get_contents($key_file_location);
$cred = new Google_Auth_AssertionCredentials(
$service_account_name,`enter code here`
array('https://www.googleapis.com/auth/prediction'),
$key
);
$client->setAssertionCredentials($cred);
if($client->getAuth()->isAccessTokenExpired()) {
$client->getAuth()->refreshTokenWithAssertion($cred);
}
$_SESSION['service_token'] = $client->getAccessToken();
// Prediction logic:
$id = 'datamodel';
$project = "XXXXXXXXXX";
$input = $_REQUEST['input'];
//$predictionData = new Google_InputInput(); //Depricated method in Google_api_php_client_version1.0.0 // W.P.Roshan
$predictionData = new Google_Service_Prediction_InputInput();
$predictionData->setCsvInstance(array($input));
//$input = new Google_Input(); //Depricated method in Google_api_php_client_version1.0.0 // W.P.Roshan
$input = new Google_Service_Prediction_Input();
$input->setInput($predictionData);
$PredictionResult = $service->trainedmodels->predict($project,$id, $input,$optParams = array());
//print '<h3>Prediction Result:</h3><pre>' . print_r($result, true) . '</pre>';
$AccuracyMetaResult = $service->trainedmodels->get($project, $id, $optParams = array());
//print '<h3>Classification Accuracy Result:</h3><pre>' . print_r($result, true) . '</pre>';
$stdout = new stdClass();
$stdout->dataModel = $PredictionResult['id'];
$stdout->outputLabel = $PredictionResult['outputLabel'];
$stdout->negative = $PredictionResult['modelData']['outputMulti'][0]['score'];
$stdout->neutral = $PredictionResult['modelData']['outputMulti'][1]['score'];
$stdout->positive = $PredictionResult['modelData']['outputMulti'][2]['score'];
$stdout->modelCreated = $AccuracyMetaResult['created'];
$stdout->trainingCompleted = $AccuracyMetaResult['trainingComplete'];
$stdout->trainingStatus = $AccuracyMetaResult['trainingStatus'];
$stdout->modelType = $AccuracyMetaResult['modelData']['modelInfo']['modelType'];
$stdout->dataModelAccuracy = $AccuracyMetaResult['modelData']['modelInfo']['classificationAccuracy'];
echo json_encode($stdout);
if ($client->getAccessToken()) {
$_SESSION['token'] = $client->getAccessToken();
}
回答1:
I ave just had hours of trying to solve this problem. It turned out that my server's time was a couple of minutes ahead of google's time.
Setting my Server time to the correct time fixed this issue immediately.
Hopefully this helps someone :)
回答2:
I think you have a problem with the order of how you are doing things. You are creating the service before you are getting authentication. This is an example using google analytics api.
<?php
session_start();
require_once 'Google/Client.php';
require_once 'Google/Service/Analytics.php';
/************************************************
The following 3 values an befound in the setting
for the application you created on Google
Developers console.
The Key file should be placed in a location
that is not accessable from the web. outside of
web root.
In order to access your GA account you must
Add the Email address as a user at the
ACCOUNT Level in the GA admin.
************************************************/
$client_id = '1046123799103-nk421gjc2v8mlr2qnmmqaak04ntb1dbp.apps.googleusercontent.com';
$Email_address = '1046123799103-nk421gjc2v8mlr2qnmmqaak04ntb1dbp@developer.gserviceaccount.com';
$key_file_location = '629751513db09cd21a941399389f33e5abd633c9-privatekey.p12';
$client = new Google_Client();
$client->setApplicationName("Client_Library_Examples");
$key = file_get_contents($key_file_location);
// seproate additional scopes with a comma
$scopes ="https://www.googleapis.com/auth/analytics.readonly";
$cred = new Google_Auth_AssertionCredentials(
$Email_address,
array($scopes),
$key
);
$client->setAssertionCredentials($cred);
if($client->getAuth()->isAccessTokenExpired()) {
$client->getAuth()->refreshTokenWithAssertion($cred);
}
$service = new Google_Service_Analytics($client);
$accounts = $service->management_accountSummaries->listManagementAccountSummaries();
//calulating start date
$date = new DateTime(date("Y-m-d"));
$date->sub(new DateInterval('P10D'));
//Adding Dimensions
$params = array('dimensions' => 'ga:userType');
// requesting the data
$data = $service->data_ga->get("ga:78110423", $date->format('Y-m-d'), date("Y-m-d"), "ga:users,ga:sessions", $params );
?><html>
<?php echo $date->format('Y-m-d') . " - ".date("Y-m-d"). "\n";?>
<table>
<tr>
<?php
//Printing column headers
foreach($data->getColumnHeaders() as $header){
print "<td>".$header['name']."</td>";
}
?>
</tr>
<?php
//printing each row.
foreach ($data->getRows() as $row) {
print "<tr><td>".$row[0]."</td><td>".$row[1]."</td><td>".$row[2]."</td></tr>";
}
//printing the total number of rows
?>
<tr><td colspan="2">Rows Returned <?php print $data->getTotalResults();?> </td></tr>
</table>
</html>
<?php
?>
Example taken from my tutorial Google Service Account php
回答3:
I had same error on my login in page. This error occurs due to re-authentication.
Once you successfully login's to your page. In your code check if Session is set. Otherwise it will go to authenticate user again . That's how I solved my error. Hope it will work for you also.
if(isset($_GET['code'])){<br>
if(!isset($_SESSION['token'])){
$gClient->authenticate($_GET['code']);
$_SESSION['token'] = $gClient->getAccessToken();
header('location:'.filter_var($redirectURL,FILTER_SANITIZE_URL));
}
}
来源：https://stackoverflow.com/questions/25376791/fatal-error-uncaught-exception-google-auth-exception-with-message-error-refr