End of Support Plugin for Joomla 4.4

[jgerman-bot]

New language relevant PR in upstream repo: joomla/joomla-cms#40565 Here are the upstream changes:

Click to expand the diff!

diff --git a/administrator/components/com_admin/sql/updates/mysql/4.4.0-2023-05-08.sql b/administrator/components/com_admin/sql/updates/mysql/4.4.0-2023-05-08.sql
new file mode 100644
index 000000000000..4c621665e1d7
--- /dev/null
+++ b/administrator/components/com_admin/sql/updates/mysql/4.4.0-2023-05-08.sql
@@ -0,0 +1,2 @@
+INSERT INTO `#__extensions` (`package_id`, `name`, `type`, `element`, `folder`, `client_id`, `enabled`, `access`, `protected`, `locked`, `manifest_cache`, `params`, `custom_data`, `ordering`, `state`) VALUES
+	(0, 'plg_quickicon_eos', 'plugin', 'eos', 'quickicon', 0, 1, 1, 0, 1, '', '', '', 7, 0);
diff --git a/administrator/components/com_admin/sql/updates/postgresql/4.4.0-2023-05-08.sql b/administrator/components/com_admin/sql/updates/postgresql/4.4.0-2023-05-08.sql
new file mode 100644
index 000000000000..46f7bf62de40
--- /dev/null
+++ b/administrator/components/com_admin/sql/updates/postgresql/4.4.0-2023-05-08.sql
@@ -0,0 +1,2 @@
+INSERT INTO "#__extensions" ("package_id", "name", "type", "element", "folder", "client_id", "enabled", "access", "protected", "locked", "manifest_cache", "params", "custom_data", "ordering", "state") VALUES
+	(0, 'plg_quickicon_eos', 'plugin', 'eos', 'quickicon', 0, 1, 1, 0, 1, '', '', '', 7, 0);
diff --git a/administrator/language/en-GB/plg_quickicon_eos.ini b/administrator/language/en-GB/plg_quickicon_eos.ini
new file mode 100644
index 000000000000..f4af7d0ce768
--- /dev/null
+++ b/administrator/language/en-GB/plg_quickicon_eos.ini
@@ -0,0 +1,39 @@
+; Joomla! Project
+; (C) 2023 Open Source Matters, Inc. <https://www.joomla.org>
+; License GNU General Public License version 2 or later; see LICENSE.txt
+; Note : All ini files need to be saved as UTF-8
+
+PLG_QUICKICON_EOS="Quick Icon - Joomla! End Of Support Notification"
+PLG_QUICKICON_EOS_GROUPNAME_EOS="End Of Support"
+PLG_QUICKICON_EOS_GROUPNAME_INFO="Upgrade Information"
+PLG_QUICKICON_EOS_GROUPNAME_WARNING="Support Status"
+PLG_QUICKICON_EOS_MESSAGE_ERROR_SUPPORT_ENDED="<p>Support has ended for your version of Joomla. <a href=\"%2$s\" target=\"_blank\" rel=\"noopener noreferrer\">Migrate to the next version</a> as soon as possible.</p>"
+PLG_QUICKICON_EOS_MESSAGE_ERROR_SUPPORT_ENDED_SHORT="Support has ended for your version of Joomla <span class=\"icon-new-tab\"></span>"
+PLG_QUICKICON_EOS_MESSAGE_INFO_01="<p>The latest version of Joomla has arrived! Find out all that it has to offer you. Check the landing page for <a href=\"%2$s\" target=\"_blank\" rel=\"noopener noreferrer\">its features</a> and improvements.</p>"
+PLG_QUICKICON_EOS_MESSAGE_INFO_01_SHORT="The latest version of Joomla has arrived! <span class=\"icon-new-tab\"></span>"
+PLG_QUICKICON_EOS_MESSAGE_INFO_02="<p>When is the time to migrate to the next version? Once the extensions your site needs are compatible. Learn <a href=\"%2$s\" target=\"_blank\" rel=\"noopener noreferrer\">how to use the Pre-Update Checker</a>. </p>"
+PLG_QUICKICON_EOS_MESSAGE_INFO_02_SHORT="Use Pre-Update Check for extension compatibility <span class=\"icon-new-tab\"></span>"
+PLG_QUICKICON_EOS_MESSAGE_WARNING_SECURITY_ONLY="<p>This version of Joomla has entered security only mode. Support ends %1$s. Start <a href=\"%2$s\" target=\"_blank\" rel=\"noopener noreferrer\">planning to migrate</a> to the next version of Joomla today.</p>"
+PLG_QUICKICON_EOS_MESSAGE_WARNING_SECURITY_ONLY_SHORT="This version of Joomla ends support on %1$s. <span class=\"icon-new-tab\"></span>"
+PLG_QUICKICON_EOS_MESSAGE_WARNING_SUPPORT_ENDING="<p>Support ends on %1$s for this version of Joomla. <a href=\"%2$s\" target=\"_blank\" rel=\"noopener noreferrer\">Migrate to the latest version of Joomla</a> as soon as possible.</p>"
+PLG_QUICKICON_EOS_MESSAGE_WARNING_SUPPORT_ENDING_SHORT="End of support for this version of Joomla on %1$s. <span class=\"icon-new-tab\"></span>"
+PLG_QUICKICON_EOS_SNOOZE_BUTTON="Snooze this message for all users"
+PLG_QUICKICON_EOS_XML_DESCRIPTION="Checks for the end of support status of Joomla and notifies you when visiting the Control Panel page."
+; Below is a copy of the 3.10 text definitions for reference.
+PLG_QUICKICON_EOS310="Quick Icon - Joomla 3.10 End Of Support Notification"
+PLG_QUICKICON_EOS310_GROUPNAME_EOS="End Of Support"
+PLG_QUICKICON_EOS310_GROUPNAME_INFO="Upgrade Information"
+PLG_QUICKICON_EOS310_GROUPNAME_WARNING="Support Status"
+PLG_QUICKICON_EOS310_MESSAGE_ERROR_SUPPORT_ENDED="<p>Support has ended for your version of Joomla 3.10. <a href=\"%2$s\" target=\"_blank\" rel=\"noopener noreferrer\">Migrate to Joomla 4</a> <span class=\"icon-new-tab\"></span>as soon as possible.</p>"
+PLG_QUICKICON_EOS310_MESSAGE_ERROR_SUPPORT_ENDED_SHORT="Support has ended for Joomla 3.10 <span class=\"icon-new-tab\"></span>"
+PLG_QUICKICON_EOS310_MESSAGE_INFO_01="<p>Joomla 4 has arrived! Find out all that Joomla 4 has to offer you. Check the landing page for <a href=\"%2$s\" target=\"_blank\" rel=\"noopener noreferrer\">Joomla 4 features</a> <span class=\"icon-new-tab\"></span>and improvements.</p>"
+PLG_QUICKICON_EOS310_MESSAGE_INFO_01_SHORT="Joomla 4 has arrived! <span class=\"icon-new-tab\"></span>"
+PLG_QUICKICON_EOS310_MESSAGE_INFO_02="<p>When is the time to migrate to Joomla 4? Once the extensions your site needs are compatible. Learn <a href=\"%2$s\" target=\"_blank\" rel=\"noopener noreferrer\">how to use the Pre-Update Checker</a>. <span class=\"icon-new-tab\"></span></p>"
+PLG_QUICKICON_EOS310_MESSAGE_INFO_02_SHORT="Use Pre-Update Check for extension compatibility <span class=\"icon-new-tab\"></span>"
+PLG_QUICKICON_EOS310_MESSAGE_WARNING_SECURITY_ONLY="<p>Joomla 3.10 has entered security only mode. Support ends %1$s. Start <a href=\"%2$s\" target=\"_blank\" rel=\"noopener noreferrer\">planning to migrate</a> <span class=\"icon-new-tab\"></span>to Joomla 4 today.</p>"
+PLG_QUICKICON_EOS310_MESSAGE_WARNING_SECURITY_ONLY_SHORT="Joomla 3.10 to end support on %1$s. <span class=\"icon-new-tab\"></span>"
+PLG_QUICKICON_EOS310_MESSAGE_WARNING_SUPPORT_ENDING="<p>Support ends on %1$s for Joomla 3.10. <a href=\"%2$s\" target=\"_blank\" rel=\"noopener noreferrer\">Migrate to Joomla 4</a> <span class=\"icon-new-tab\"></span>as soon as possible.</p>"
+PLG_QUICKICON_EOS310_MESSAGE_WARNING_SUPPORT_ENDING_SHORT="End of support for Joomla 3.10 on %1$s. <span class=\"icon-new-tab\"></span>"
+PLG_QUICKICON_EOS310_SNOOZE_BUTTON="Snooze this message for all users"
+PLG_QUICKICON_EOS310_XML_DESCRIPTION="Checks for the end of support status of Joomla 3.10 and notifies you when visiting the Control Panel page."
+;All of this text is currently being written for Joomla 5 by Phil Watson and Jenn Gress. TODO
diff --git a/administrator/language/en-GB/plg_quickicon_eos.sys.ini b/administrator/language/en-GB/plg_quickicon_eos.sys.ini
new file mode 100644
index 000000000000..9e3b85198e25
--- /dev/null
+++ b/administrator/language/en-GB/plg_quickicon_eos.sys.ini
@@ -0,0 +1,7 @@
+; Joomla! Project
+; (C) 2023 Open Source Matters, Inc. <https://www.joomla.org>
+; License GNU General Public License version 2 or later; see LICENSE.txt
+; Note : All ini files need to be saved as UTF-8
+
+PLG_QUICKICON_EOS="Quick Icon - Joomla! End Of Support Notification"
+PLG_QUICKICON_EOS_XML_DESCRIPTION="Checks for the end of support status of Joomla and places a notification on the Control Panel page."
diff --git a/build/media_source/plg_quickicon_eos/js/snooze.es6.js b/build/media_source/plg_quickicon_eos/js/snooze.es6.js
new file mode 100644
index 000000000000..cda59294cbbc
--- /dev/null
+++ b/build/media_source/plg_quickicon_eos/js/snooze.es6.js
@@ -0,0 +1,37 @@
+/**
+ * @package     Joomla.Plugin
+ * @subpackage  Quickicon.eos
+ * @copyright  (C) 2023 Open Source Matters, Inc. <https://www.joomla.org>
+ * @license    GNU General Public License version 2 or later; see LICENSE.txt
+ */
+if (!Joomla) {
+  throw new Error('Joomla API is not properly initialised');
+}
+
+const url = new URL(`${Joomla.getOptions('system.paths').baseFull}index.php?option=com_ajax&group=quickicon&plugin=eos&format=json`);
+
+async function onMutatedMessagesContainer(mutationList, observer) {
+  // eslint-disable-next-line no-restricted-syntax
+  for (const mutation of mutationList) {
+    const nodes = Array.from(mutation.addedNodes);
+    if (!nodes.length) {
+      return;
+    }
+
+    const alerts = nodes.filter((node) => node.querySelector('.eosnotify-snooze-btn'));
+    if (!alerts.length) {
+      return;
+    }
+
+    observer.disconnect();
+    alerts[0].querySelector('.eosnotify-snooze-btn').addEventListener('click', () => fetch(url, { headers: { 'X-CSRF-Token': Joomla.getOptions('csrf.token') || '' } })
+      .then((response) => {
+        if (response.ok) {
+          alerts[0].closest('joomla-alert').close();
+        }
+      }));
+  }
+}
+
+const observer = new MutationObserver(onMutatedMessagesContainer);
+observer.observe(document.querySelector('#system-message-container'), { attributes: false, childList: true, subtree: true });
diff --git a/installation/sql/mysql/base.sql b/installation/sql/mysql/base.sql
index 6cbe27732c7c..2757cd2a5b39 100644
--- a/installation/sql/mysql/base.sql
+++ b/installation/sql/mysql/base.sql
@@ -328,6 +328,7 @@ INSERT INTO `#__extensions` (`package_id`, `name`, `type`, `element`, `folder`,
 (0, 'plg_quickicon_downloadkey', 'plugin', 'downloadkey', 'quickicon', 0, 1, 1, 0, 1, '', '', '', 4, 0),
 (0, 'plg_quickicon_privacycheck', 'plugin', 'privacycheck', 'quickicon', 0, 1, 1, 0, 1, '', '{}', '', 5, 0),
 (0, 'plg_quickicon_phpversioncheck', 'plugin', 'phpversioncheck', 'quickicon', 0, 1, 1, 0, 1, '', '', '', 6, 0),
+(0, 'plg_quickicon_eos', 'plugin', 'eos', 'quickicon', 0, 1, 1, 0, 1, '', '', '', 7, 0),
 (0, 'plg_sampledata_blog', 'plugin', 'blog', 'sampledata', 0, 1, 1, 0, 1, '', '', '', 1, 0),
 (0, 'plg_sampledata_multilang', 'plugin', 'multilang', 'sampledata', 0, 1, 1, 0, 1, '', '', '', 2, 0),
 (0, 'plg_system_accessibility', 'plugin', 'accessibility', 'system', 0, 0, 1, 0, 1, '', '{}', '', 1, 0),
diff --git a/installation/sql/postgresql/base.sql b/installation/sql/postgresql/base.sql
index eaf4db92ad35..3cab39bfccc6 100644
--- a/installation/sql/postgresql/base.sql
+++ b/installation/sql/postgresql/base.sql
@@ -334,6 +334,7 @@ INSERT INTO "#__extensions" ("package_id", "name", "type", "element", "folder",
 (0, 'plg_quickicon_downloadkey', 'plugin', 'downloadkey', 'quickicon', 0, 1, 1, 0, 1, '', '', '', 4, 0),
 (0, 'plg_quickicon_privacycheck', 'plugin', 'privacycheck', 'quickicon', 0, 1, 1, 0, 1, '', '{}', '', 5, 0),
 (0, 'plg_quickicon_phpversioncheck', 'plugin', 'phpversioncheck', 'quickicon', 0, 1, 1, 0, 1, '', '', '', 6, 0),
+(0, 'plg_quickicon_eos', 'plugin', 'eos', 'quickicon', 0, 1, 1, 0, 1, '', '', '', 7, 0),
 (0, 'plg_sampledata_blog', 'plugin', 'blog', 'sampledata', 0, 1, 1, 0, 1, '', '', '', 1, 0),
 (0, 'plg_sampledata_multilang', 'plugin', 'multilang', 'sampledata', 0, 1, 1, 0, 1, '', '', '', 2, 0),
 (0, 'plg_system_accessibility', 'plugin', 'accessibility', 'system', 0, 0, 1, 0, 1, '', '{}', '', 1, 0),
diff --git a/libraries/src/Extension/ExtensionHelper.php b/libraries/src/Extension/ExtensionHelper.php
index aec5e4eb2c34..167ef57a3142 100644
--- a/libraries/src/Extension/ExtensionHelper.php
+++ b/libraries/src/Extension/ExtensionHelper.php
@@ -273,6 +273,7 @@ class ExtensionHelper
         ['plugin', 'overridecheck', 'quickicon', 0],
         ['plugin', 'phpversioncheck', 'quickicon', 0],
         ['plugin', 'privacycheck', 'quickicon', 0],
+        ['plugin', 'eos', 'quickicon', 0],
 
         // Core plugin extensions - sample data
         ['plugin', 'blog', 'sampledata', 0],
diff --git a/plugins/quickicon/eos/eos.xml b/plugins/quickicon/eos/eos.xml
new file mode 100644
index 000000000000..e0f325e1aa16
--- /dev/null
+++ b/plugins/quickicon/eos/eos.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<extension type="plugin" group="quickicon" method="upgrade">
+	<name>plg_quickicon_eos</name>
+	<author>Joomla! Project</author>
+	<creationDate>2023-05</creationDate>
+	<copyright>(C) 2023 Open Source Matters, Inc.</copyright>
+	<license>GNU General Public License version 2 or later; see LICENSE.txt</license>
+	<authorEmail>admin@joomla.org</authorEmail>
+	<authorUrl>www.joomla.org</authorUrl>
+	<version>4.4.0</version>
+	<description>PLG_QUICKICON_EOS_XML_DESCRIPTION</description>
+	<namespace path="src">Joomla\Plugin\Quickicon\Eos</namespace>
+	<files>
+		<folder plugin="eos">services</folder>
+		<folder>src</folder>
+	</files>
+	<languages>
+		<language tag="en-GB">language/en-GB/plg_quickicon_eos.ini</language>
+		<language tag="en-GB">language/en-GB/plg_quickicon_eos.sys.ini</language>
+	</languages>
+	<config>
+		<fields name="params">
+			<fieldset name="basic">
+				<field
+					name="last_snoozed_id"
+					type="hidden"
+				/>
+			</fieldset>
+		</fields>
+	</config>
+</extension>
diff --git a/plugins/quickicon/eos/services/provider.php b/plugins/quickicon/eos/services/provider.php
new file mode 100644
index 000000000000..5d8413f769b3
--- /dev/null
+++ b/plugins/quickicon/eos/services/provider.php
@@ -0,0 +1,51 @@
+<?php
+
+/**
+ * @package     Joomla.Plugin
+ * @subpackage  Quickicon.eos
+ *
+ * @copyright   (C) 2023 Open Source Matters, Inc. <https://www.joomla.org>
+ * @license     GNU General Public License version 2 or later; see LICENSE.txt
+ */
+
+defined('_JEXEC') or die;
+
+use Joomla\CMS\Extension\PluginInterface;
+use Joomla\CMS\Factory;
+use Joomla\CMS\Plugin\PluginHelper;
+use Joomla\Database\DatabaseInterface;
+use Joomla\DI\Container;
+use Joomla\DI\ServiceProviderInterface;
+use Joomla\Event\DispatcherInterface;
+use Joomla\Plugin\Quickicon\Eos\Extension\Eos;
+
+return new class () implements ServiceProviderInterface {
+    /**
+     * Registers the service provider with a DI container.
+     *
+     * @param   Container  $container  The DI container.
+     *
+     * @return  void
+     *
+     * @since  __DEPLOY_VERSION__
+     *
+     * @throws Exception
+     */
+    public function register(Container $container): void
+    {
+        $container->set(
+            PluginInterface::class,
+            function (Container $container) {
+                $dispatcher = $container->get(DispatcherInterface::class);
+                $plugin     = new Eos(
+                    $dispatcher,
+                    (array) PluginHelper::getPlugin('quickicon', 'eos')
+                );
+                $plugin->setApplication(Factory::getApplication());
+                $plugin->setDatabase($container->get(DatabaseInterface::class));
+
+                return $plugin;
+            }
+        );
+    }
+};
diff --git a/plugins/quickicon/eos/src/Extension/Eos.php b/plugins/quickicon/eos/src/Extension/Eos.php
new file mode 100644
index 000000000000..d60335583eed
--- /dev/null
+++ b/plugins/quickicon/eos/src/Extension/Eos.php
@@ -0,0 +1,320 @@
+<?php
+
+/**
+ * @package     Joomla.Plugin
+ * @subpackage  Quickicon.eos
+ *
+ * @copyright   (C) 2023 Open Source Matters, Inc. <https://www.joomla.org>
+ * @license     GNU General Public License version 2 or later; see LICENSE.txt
+ */
+
+namespace Joomla\Plugin\Quickicon\Eos\Extension;
+
+use Exception;
+use Joomla\CMS\Access\Exception\NotAllowed;
+use Joomla\CMS\Factory;
+use Joomla\CMS\HTML\HTMLHelper;
+use Joomla\CMS\Language\Text;
+use Joomla\CMS\Plugin\CMSPlugin;
+use Joomla\Database\DatabaseAwareTrait;
+use Joomla\Event\SubscriberInterface;
+use Joomla\Module\Quickicon\Administrator\Event\QuickIconsEvent;
+
+// phpcs:disable PSR1.Files.SideEffects
+\defined('_JEXEC') or die;
+// phpcs:enable PSR1.Files.SideEffects
+
+/**
+ * Joomla! end of support notification plugin
+ *
+ * @since __DEPLOY_VERSION__
+ */
+final class Eos extends CMSPlugin implements SubscriberInterface
+{
+    use DatabaseAwareTrait;
+
+    /**
+     * The EOS date for 4.4. and beyond
+     *
+     * @var    string
+     * @since __DEPLOY_VERSION__
+     */
+    private const EOS_DATE = '2025-10-25';
+
+    /**
+     * Load the language file on instantiation.
+     *
+     * @var    bool
+     * @since  __DEPLOY_VERSION__
+     */
+    protected $autoloadLanguage = false;
+
+    /**
+     * Holding the current valid message to be shown
+     *
+     * @var    array
+     * @since __DEPLOY_VERSION__
+     */
+    private array $currentMessage = [];
+
+    /**
+     * Are the messages initialised
+     *
+     * @var    bool
+     * @since __DEPLOY_VERSION__
+     */
+
+    private bool $messagesInitialized = false;
+
+    /**
+     * Returns an array of events this subscriber will listen to.
+     *
+     * @return  array
+     *
+     * @since __DEPLOY_VERSION__
+     */
+    public static function getSubscribedEvents(): array
+    {
+        return [
+            'onGetIcons' => 'getEndOfServiceNotification',
+            'onAjaxEos'  => 'onAjaxEos',
+        ];
+    }
+
+    /**
+     * Check and show the the alert and quickicon message
+     *
+     * This method is called when the Quick Icons module is constructing its set
+     * of icons. You can return an array which defines a single icon and it will
+     * be rendered right after the stock Quick Icons.
+     *
+     * @param   QuickIconsEvent  $event  The event object
+     *
+     * @return  void
+     *
+     * @since __DEPLOY_VERSION__
+     *
+     * @throws Exception
+     */
+    public function getEndOfServiceNotification(QuickIconsEvent $event): void
+    {
+        if ($event->getContext() !== $this->params->get('context', 'update_quickicon') || !$this->shouldDisplayMessage() || !$this->messagesInitialized && $this->setMessage() == []) {
+            return;
+        }
+        $this->loadLanguage();
+
+        // Show this only when not snoozed
+        if ($this->params->get('last_snoozed_id', 0) < $this->currentMessage['id']) {
+            // Build the  message to be displayed in the cpanel
+            $messageText = Text::sprintf($this->currentMessage['messageText'], HTMLHelper::_('date', Eos::EOS_DATE, Text::_('DATE_FORMAT_LC3')), $this->currentMessage['messageLink']);
+            if ($this->currentMessage['snoozable']) {
+                $messageText .= '<p><button class="btn btn-warning eosnotify-snooze-btn" type="button" >' . Text::_('PLG_QUICKICON_EOS_SNOOZE_BUTTON') . '</button></p>';
+            }
+            $this->getApplication()->enqueueMessage($messageText, $this->currentMessage['messageType']);
+        }
+
+        $this->getApplication()->getDocument()->getWebAssetManager()->registerAndUseScript('plg_quickicon_eos.script', 'plg_quickicon_eos/snooze.js', [], ['type' => 'module']);
+
+        $result               = $event->getArgument('result', []);
+        $messageTextQuickIcon = Text::sprintf($this->currentMessage['quickiconText'], HTMLHelper::_('date', Eos::EOS_DATE, Text::_('DATE_FORMAT_LC3')));
+
+        // The message as quickicon
+
+        $result[] = [
+            [
+                'link'  => $this->currentMessage['messageLink'],
+                'image' => $this->currentMessage['image'],
+                'text'  => $messageTextQuickIcon,
+                'id'    => 'plg_quickicon_eos',
+                'group' => $this->currentMessage['groupText'],
+                'class' => $this->currentMessage['messageType'],
+            ],
+        ];
+
+        $event->setArgument('result', $result);
+    }
+
+    /**
+     * Save the plugin parameters
+     *
+     * @return  bool
+     *
+     * @since __DEPLOY_VERSION__
+     */
+    private function saveParams(): bool
+    {
+        $params = $this->params->toString('JSON');
+        $db     = $this->getDatabase();
+        $query  = $db->getQuery(true)
+            ->update($db->quoteName('#__extensions'))
+            ->set($db->quoteName('params') . ' = :params')
+            ->where($db->quoteName('type') . ' = ' . $db->quote('plugin'))
+            ->where($db->quoteName('folder') . ' = ' . $db->quote('quickicon'))
+            ->where($db->quoteName('element') . ' = ' . $db->quote('eos'))
+            ->bind(':params', $params);
+
+        return $db->setQuery($query)->execute();
+    }
+
+    /**
+     * Determines if the message and quickicon should be displayed
+     *
+     * @return  bool
+     *
+     * @since __DEPLOY_VERSION__
+     *
+     * @throws Exception
+     */
+    private function shouldDisplayMessage(): bool
+    {
+        return !$this->getApplication()->isClient('administrator')
+            || $this->getApplication()->getIdentity()->guest
+            || $this->getApplication()->getDocument()->getType() !== 'html'
+            || $this->getApplication()->getInput()->getCmd('tmpl', 'index') === 'component'
+            || $this->getApplication()->getInput()->get('option') !== 'com_cpanel'
+            ? false : true;
+    }
+
+    /**
+     * Return the texts to be displayed based on the time until we reach EOS
+     *
+     * @param   int  $monthsUntilEOS  The months until we reach EOS
+     * @param   int  $inverted        Have we surpassed the EOS date
+     *
+     * @return  array  An array with the message to be displayed or false
+     *
+     * @since __DEPLOY_VERSION__
+     */
+    private function getMessageInfo(int $monthsUntilEOS, int $inverted): array
+    {
+        // The EOS date has passed - Support has ended
+        if ($inverted === 1) {
+            return [
+                'id'            => 5,
+                'messageText'   => 'PLG_QUICKICON_EOS_MESSAGE_ERROR_SUPPORT_ENDED',
+                'quickiconText' => 'PLG_QUICKICON_EOS_MESSAGE_ERROR_SUPPORT_ENDED_SHORT',
+                'messageType'   => 'error',
+                'image'         => 'fa fa-life-ring',
+                'messageLink'   => 'https://docs.joomla.org/Special:MyLanguage/Planning_for_Mini-Migration_-_Joomla_3.10.x_to_4.x',
+                'groupText'     => 'PLG_QUICKICON_EOS_GROUPNAME_EOS',
+                'snoozable'     => false,
+            ];
+        }
+        // The security support is ending in 6 months
+        if ($monthsUntilEOS < 6) {
+            return [
+                'id'            => 4,
+                'messageText'   => 'PLG_QUICKICON_EOS_MESSAGE_WARNING_SUPPORT_ENDING',
+                'quickiconText' => 'PLG_QUICKICON_EOS_MESSAGE_WARNING_SUPPORT_ENDING_SHORT',
+                'messageType'   => 'warning',
+                'image'         => 'fa fa-life-ring',
+                'messageLink'   => 'https://docs.joomla.org/Special:MyLanguage/Planning_for_Mini-Migration_-_Joomla_3.10.x_to_4.x',
+                'groupText'     => 'PLG_QUICKICON_EOS_GROUPNAME_WARNING',
+                'snoozable'     => true,
+            ];
+        }
+        // We are in security only mode now, 12 month to go from now on
+        if ($monthsUntilEOS < 12) {
+            return [
+                'id'            => 3,
+                'messageText'   => 'PLG_QUICKICON_EOS_MESSAGE_WARNING_SECURITY_ONLY',
+                'quickiconText' => 'PLG_QUICKICON_EOS_MESSAGE_WARNING_SECURITY_ONLY_SHORT',
+                'messageType'   => 'warning',
+                'image'         => 'fa fa-life-ring',
+                'messageLink'   => 'https://docs.joomla.org/Special:MyLanguage/Planning_for_Mini-Migration_-_Joomla_3.10.x_to_4.x',
+                'groupText'     => 'PLG_QUICKICON_EOS_GROUPNAME_WARNING',
+                'snoozable'     => true,
+            ];
+        }
+        // We still have 16 month to go, lets remind our users about the pre upgrade checker
+        if ($monthsUntilEOS < 16) {
+            return [
+                'id'            => 2,
+                'messageText'   => 'PLG_QUICKICON_EOS_MESSAGE_INFO_02',
+                'quickiconText' => 'PLG_QUICKICON_EOS_MESSAGE_INFO_02_SHORT',
+                'messageType'   => 'info',
+                'image'         => 'fa fa-life-ring',
+                'messageLink'   => 'https://docs.joomla.org/Special:MyLanguage/Pre-Update_Check',
+                'groupText'     => 'PLG_QUICKICON_EOS_GROUPNAME_INFO',
+                'snoozable'     => true,
+            ];
+        }
+        // Lets start our messages 2 month after the initial release, still 22 month to go
+        if ($monthsUntilEOS < 22) {
+            return [
+                'id'            => 1,
+                'messageText'   => 'PLG_QUICKICON_EOS_MESSAGE_INFO_01',
+                'quickiconText' => 'PLG_QUICKICON_EOS_MESSAGE_INFO_01_SHORT',
+                'messageType'   => 'info',
+                'image'         => 'fa fa-life-ring',
+                'messageLink'   => 'https://www.joomla.org/4/#features',
+                'groupText'     => 'PLG_QUICKICON_EOS_GROUPNAME_INFO',
+                'snoozable'     => true,
+            ];
+        }
+
+        return [];
+    }
+
+    /**
+     * Check if current user is allowed to send the data
+     *
+     * @return  bool
+     *
+     * @since __DEPLOY_VERSION__
+     *
+     * @throws Exception
+     */
+    private function isAllowedUser(): bool
+    {
+        return $this->getApplication()->getIdentity()->authorise('core.login.admin');
+    }
+
+    /**
+     * User hit the snooze button
+     *
+     * @return  string
+     *
+     * @since __DEPLOY_VERSION__
+     *
+     * @throws  Notallowed  If user is not allowed.
+     *
+     * @throws Exception
+     */
+    public function onAjaxEos(): string
+    {
+        // No messages yet so nothing to snooze
+        if (!$this->messagesInitialized && $this->setMessage() == []) {
+            return '';
+        }
+        if (!$this->isAllowedUser()) {
+            throw new Notallowed(Text::_('JGLOBAL_AUTH_ACCESS_DENIED'), 403);
+        }
+        // Make sure only snoozable messages can be snoozed
+        if ($this->currentMessage['snoozable']) {
+            $this->params->set('last_snoozed_id', $this->currentMessage['id']);
+            $this->saveParams();
+        }
+
+        return '';
+    }
+
+    /**
+     * setMessage
+     *
+     * Calculates how many days and selects correct message
+     *
+     * @return array
+     *
+     * @since  __DEPLOY_VERSION__
+     */
+    private function setMessage(): array
+    {
+        $diff                      = Factory::getDate()->diff(Factory::getDate(Eos::EOS_DATE));
+        $message                   = $this->getMessageInfo(floor($diff->days / 30.417), $diff->invert);
+        $this->currentMessage      = $message;
+        $this->messagesInitialized = true;
+
+        return $message;
+    }
+}