}
// Check to ensure that the access token was successfully acquired.
if ($client->getAccessToken()) {
try {
// This code subscribes the authenticated user to the specified channel.
// Identify the resource being subscribed to by specifying its channel ID
// and kind.
$resourceId = new Google_Service_YouTube_ResourceId();
$resourceId->setChannelId('UCtVd0c0tGXuTSbU5d8cSBUg');
$resourceId->setKind('youtube#channel');
// Create a snippet object and set its resource ID.
$subscriptionSnippet = new Google_Service_YouTube_SubscriptionSnippet();
$subscriptionSnippet->setResourceId($resourceId);
// Create a subscription request that contains the snippet object.
$subscription = new Google_Service_YouTube_Subscription();
$subscription->setSnippet($subscriptionSnippet);
// Execute the request and return an object containing information
// about the new subscription.
$subscriptionResponse = $youtube->subscriptions->insert('id,snippet', $subscription, array());
$htmlBody .= "<h3>Subscription</h3><ul>";
$htmlBody .= sprintf('<li>%s (%s)</li>', $subscriptionResponse['snippet']['title'], $subscriptionResponse['id']);
$htmlBody .= '</ul>';
} catch (Google_Service_Exception $e) {
$htmlBody .= sprintf('<p>A service error occurred: <code>%s</code></p>', htmlspecialchars($e->getMessage()));
} catch (Google_Exception $e) {
$htmlBody .= sprintf('<p>An client error occurred: <code>%s</code></p>', htmlspecialchars($e->getMessage()));
}
$_SESSION['token'] = $client->getAccessToken();
} else {
// If the user has not authorized the application, start the OAuth 2.0 flow.
$state = mt_rand();
function addChannelToSubscriptions($channel_id)
{
// include the required php files - containers client_id and client_secret
include_once YT4WP_PATH . 'lib/google_api_wrapper_clientid_clientsecret.php';
try {
$resourceId = new Google_Service_YouTube_ResourceId();
$resourceId->setChannelId($channel_id);
$resourceId->setKind('youtube#channel');
$subscriptionSnippet = new Google_Service_YouTube_SubscriptionSnippet();
$subscriptionSnippet->setResourceId($resourceId);
$subscription = new Google_Service_YouTube_Subscription();
$subscription->setSnippet($subscriptionSnippet);
$subscriptionResponse = $youtube->subscriptions->insert('id,snippet', $subscription, array());
if ($subscriptionResponse) {
// ajax to return our unsubscribe ID (which differs from the subscribe ID)
// Check if the user is subscribed to this channel
$is_user_subscribed = $youtube->subscriptions->listSubscriptions('id', array('mine' => 'true', 'forChannelId' => $channel_id, 'maxResults' => 1));
if ($is_user_subscribed['items']) {
$unsubscribe_id = $is_user_subscribed['items'][0]['id'];
}
echo $unsubscribe_id;
}
} catch (Google_ServiceException $e) {
echo '<span id="response_message" class="yt4wp-error-alert"><strong>Oh No!</strong> We have encountered a serious error : <code> ' . $e->getMessage() . '</code>' . $e->getCode();
/* Write the error to our error log */
$this->writeErrorToErrorLog($e->getMessage(), $e->getCode());
} catch (Google_Exception $e) {
echo '<span id="response_message" class="yt4wp-error-alert"><strong>Oh No!</strong> We have encountered a serious error : <code> ' . $e->getMessage() . '</code>' . $e->getCode();
/* Write the error to our error log */
$this->writeErrorToErrorLog($e->getMessage(), $e->getCode());
}
}