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<?php
/**
* Piwik - free/libre analytics platform
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*
*/
namespace Piwik\Plugins\CoreUpdater;
use Piwik\Config;
use Piwik\Mail;
use Piwik\Option;
use Piwik\Piwik;
use Piwik\Plugins\UsersManager\API as UsersManagerApi;
use Piwik\SettingsPiwik;
use Piwik\UpdateCheck;
/**
* Class to check and notify users via email if there is a core update available.
*/
class UpdateCommunication
{
/**
* Checks whether update communciation in general is enabled or not.
*
* @return bool
*/
public function isEnabled()
{
$isEnabled = Config::getInstance()->General['enable_update_communication'];
return !empty($isEnabled);
}
/**
* Sends a notification email to all super users if there is a core update available but only if we haven't notfied
* them about a specific new version yet.
*
* @return bool
*/
public function sendNotificationIfUpdateAvailable()
{
if (!$this->isNewVersionAvailable()) {
return;
}
if ($this->hasNotificationAlreadyReceived()) {
return;
}
$this->setHasLatestUpdateNotificationReceived();
$this->sendNotifications();
}
protected function sendNotifications()
{
$latestVersion = $this->getLatestVersion();
$host = SettingsPiwik::getPiwikUrl();
$subject = Piwik::translate('CoreUpdater_NotificationSubjectAvailableCoreUpdate', $latestVersion);
$message = Piwik::translate('ScheduledReports_EmailHello');
$message .= "\n\n";
$message .= Piwik::translate('CoreUpdater_ThereIsNewVersionAvailableForUpdate');
$message .= "\n\n";
$message .= Piwik::translate('CoreUpdater_YouCanUpgradeAutomaticallyOrDownloadPackage', $latestVersion);
$message .= "\n\n";
$message .= $host . 'index.php?module=CoreUpdater&action=newVersionAvailable';
$message .= "\n\n";
$message .= Piwik::translate('CoreUpdater_FeedbackRequest');
$message .= "\n";
$message .= 'http://piwik.org/contact/';
$this->sendEmailNotification($subject, $message);
}
private function isVersionLike($latestVersion)
{
return strlen($latestVersion) < 18;
}
/**
* Send an email notification to all super users.
*
* @param $subject
* @param $message
*/
protected function sendEmailNotification($subject, $message)
{
$superUsers = UsersManagerApi::getInstance()->getUsersHavingSuperUserAccess();
foreach ($superUsers as $superUser) {
$mail = new Mail();
$mail->setDefaultFromPiwik();
$mail->addTo($superUser['email']);
$mail->setSubject($subject);
$mail->setBodyText($message);
$mail->send();
}
}
private function isNewVersionAvailable()
{
UpdateCheck::check();
$hasUpdate = UpdateCheck::isNewestVersionAvailable();
if (!$hasUpdate) {
return false;
}
$latestVersion = self::getLatestVersion();
if (!$this->isVersionLike($latestVersion)) {
return false;
}
return $hasUpdate;
}
private function hasNotificationAlreadyReceived()
{
$latestVersion = $this->getLatestVersion();
$lastVersionSent = $this->getLatestVersionSent();
if (!empty($lastVersionSent)
&& ($latestVersion == $lastVersionSent
|| version_compare($latestVersion, $lastVersionSent) == -1)) {
return true;
}
return false;
}
private function getLatestVersion()
{
return UpdateCheck::getLatestVersion();
}
private function getLatestVersionSent()
{
return Option::get($this->getNotificationSentOptionName());
}
private function setHasLatestUpdateNotificationReceived()
{
$latestVersion = $this->getLatestVersion();
Option::set($this->getNotificationSentOptionName(), $latestVersion);
}
private function getNotificationSentOptionName()
{
return 'last_update_communication_sent_core';
}
}
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