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msd2/tracking/piwik/plugins/CoreUpdater/UpdateCommunication.php

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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;
+use Piwik\Version;
+use Piwik\View;
+
+/**
+ * Class to check and notify users via email if there is a core update available.
+ */
+class UpdateCommunication
+{
+
+    /**
+     * Checks whether update communication in general is enabled or not.
+     *
+     * @return bool
+     */
+    public function isEnabled()
+    {
+        $isEnabled = (bool) Config::getInstance()->General['enable_update_communication'];
+
+        if($isEnabled === true && SettingsPiwik::isInternetEnabled() === true){
+            return true;
+        }
+        
+        return false;
+    }
+
+    /**
+     * 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);
+
+        $view = new View('@CoreUpdater/_updateCommunicationEmail.twig');
+        $view->latestVersion = $latestVersion;
+        $view->host = $host;
+
+        $version = new Version();
+        $view->isStableVersion = $version->isStableVersion($latestVersion);
+        $view->linkToChangeLog = $this->getLinkToChangeLog($latestVersion);
+
+        $this->sendEmailNotification($subject, $view);
+    }
+
+    private function getLinkToChangeLog($version)
+    {
+        $version = str_replace('.', '-', $version);
+
+        $link = sprintf('https://matomo.org/changelog/matomo-%s/', $version);
+
+        return $link;
+    }
+
+    /**
+     * 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);
+            $mail->setWrappedHtmlBody($message);
+            $mail->send();
+        }
+    }
+
+    protected function isNewVersionAvailable()
+    {
+        UpdateCheck::check();
+
+        $hasUpdate = UpdateCheck::isNewestVersionAvailable();
+
+        if (!$hasUpdate) {
+            return false;
+        }
+
+        $latestVersion = self::getLatestVersion();
+        $version = new Version();
+        if (!$version->isVersionNumber($latestVersion)) {
+            return false;
+        }
+
+        return $hasUpdate;
+    }
+
+    protected 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()
+    {
+        $version = UpdateCheck::getLatestVersion();
+
+        if (!empty($version)) {
+            $version = trim($version);
+        }
+
+        return $version;
+    }
+
+    private function getLatestVersionSent()
+    {
+        return Option::get($this->getNotificationSentOptionName());
+    }
+
+    private function setHasLatestUpdateNotificationReceived()
+    {
+        $latestVersion = $this->getLatestVersion();
+
+        Option::set($this->getNotificationSentOptionName(), $latestVersion);
+    }
+
+    private function getNotificationSentOptionName()
+    {
+        return 'last_update_communication_sent_core';
+    }
+}