Question

我的网站上有一个php应用程序，允许我的用户使用我的一个谷歌日历安排/重新安排日历活动，因此我不需要用户通过谷歌进行身份验证。我已经通过获取令牌并存储了刷新令牌，但现在当我尝试访问日历时，我收到一条错误消息，表明我的令牌已过期。输出是

创建客户端找到访问令牌= {“access_token”：“long ... token ... string”，“token_type”：“Bearer”，“expires_in”：3600} 发生错误：（0）OAuth 2.0访问令牌已过期，并且刷新令牌不可用。对于自动批准的响应，不会返回刷新令牌。

不确定我为什么会收到此错误。

function getAccessToken(){
$tokenURL = 'https://accounts.google.com/o/oauth2/token';
$postData = array(
    'client_secret'=>'My-Secret',
    'grant_type'=>'refresh_token',
    'approval_promt'=> 'force',
    'refresh_token'=>'My-Refresh-Token',
    'client_id'=>'My-Client-ID'
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $tokenURL);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$tokenReturn = curl_exec($ch);
return $tokenReturn;
}

function outputCalendarByDateRange($client, $startDate='2007-05-01', $endDate='2007-08-01'){
  date_default_timezone_set("America/Chicago");
  $client->addScope('https://www.googleapis.com/auth/calendar');
  try {
    $service = new Google_Service_Calendar($client);
  }catch(Google_ServiceException $e){
    print "Error code :" . $e->getCode() . "\n";
    print "Error message: " . $e->getMessage() . "\n";
  } catch (Google_Exception $e) {
    print "An error occurred: (" . $e->getCode() . ") " . $e->getMessage() . "\n";
  }

  $optParams = array(
    'orderBy'=>'starttime',
    'singleEvents'=>False,
    'timeMax'=>$endDate,
    'timeMin'=>$startDate,
    'timeZone'=>'America/Chicago',
    'maxResults'=>1000
  );

  try{
    $events = $service->events->listEvents('primary',$optParams);
  } catch (Google_ServiceException $e) {
    print "Error code :" . $e->getCode() . "\n";
    print "Error message: " . $e->getMessage() . "\n";
  } catch (Google_Exception $e) {
    print "An error occurred: (" . $e->getCode() . ") " . $e->getMessage() . "\n";
  }

  foreach ($events->getItems() as $event) {
    echo $event->getSummary();
  }
}

echo "creating a client<br>";
$client = new Google_Client();
$accessToken = getAccessToken();
echo "found access token = ".$accessToken."<br>";
try{
  $client->setAccessToken($accessToken);
}
catch (Google_ServiceException $e) {
    print "Error code :" . $e->getCode() . "\n";
    print "Error message: " . $e->getMessage() . "\n";
  } catch (Google_Exception $e) {
    print "An error occurred: (" . $e->getCode() . ") " . $e->getMessage() . "\n";
}
outputCalendarByDateRange($client, $today, $tomorrow);

Answer 1

您应该考虑使用服务帐户执行此操作。 service account允许您的应用访问您的Google日历数据，而不会提示用户访问。

创建服务帐户时，请使用其为您提供的电子邮件地址，并将其添加到您的Google日历中。然后该脚本可以访问它。

    <?php
session_start();        
require_once 'Google/Client.php';
require_once 'Google/Service/Calendar.php';     
/************************************************   
 The following 3 values an befound in the setting   
 for the application you created on Google      
 Developers console.         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/calendar.readonly";   
$cred = new Google_Auth_AssertionCredentials(    
    $Email_address,      
    array($scopes),     
    $key         
    );      
$client->setAssertionCredentials($cred);
if($client->getAuth()->isAccessTokenExpired()) {        
    $client->getAuth()->refreshTokenWithAssertion($cred);       
}       
$service = new Google_Service_Calendar($client);    

?>

<html><body>

<?php
$calendarList  = $service->calendarList->listCalendarList();
print_r($calendarList);
while(true) {
    foreach ($calendarList->getItems() as $calendarListEntry) {
        echo "<a href='Oauth2.php?type=event&id=".$calendarListEntry->id." '>".$calendarListEntry->getSummary()."</a><br>\n";
    }
    $pageToken = $calendarList->getNextPageToken();
    if ($pageToken) {
        $optParams = array('pageToken' => $pageToken);
        $calendarList = $service->calendarList->listCalendarList($optParams);
    } else {
        break;
    }
}    

?>
</html>

从教程Google Calendar API with PHP – Service Account

中删除了代码

Google Calendar API使用刷新令牌

1 个答案: