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来安排/重新安排日历事件，所以我不需要用户通过谷歌进行身份验证。 我已经完成了获取令牌并存储了刷新令牌的工作，但现在当我尝试访问日历时，我收到一个错误，说我的令牌已过期。 输出为
创建客户端找到访问令牌 = { "access_token" ： "长...令 牌。。。string"， "token_type" ： "持有者"， "expires_in" ： 3600 }发生错误：（0） OAuth 2.0 访问令牌已过期，刷新令牌不可用。对于自动批准的响应，不会返回刷新令牌。
不知道为什么我会收到此错误。
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);
应考虑使用服务帐户执行此操作。 服务帐号将允许您的应用访问您的 Google 日历数据，而无需提示用户进行访问。
创建服务帐户时，请获取它为您提供的电子邮件地址，并将其添加到Google日历中，就像任何其他用户一样。 然后，脚本将有权访问它。
<?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>
从教程中翻录的代码 谷歌日历 API 与 PHP – 服务帐户