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tommaso
2025-06-17 11:53:18 +02:00
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38
plugins/content/emailcloak/emailcloak.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<extension type="plugin" group="content" method="upgrade">
<name>plg_content_emailcloak</name>
<author>Joomla! Project</author>
<creationDate>2005-11</creationDate>
<copyright>(C) 2005 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>3.0.0</version>
<description>PLG_CONTENT_EMAILCLOAK_XML_DESCRIPTION</description>
<namespace path="src">Joomla\Plugin\Content\EmailCloak</namespace>
<files>
<folder plugin="emailcloak">services</folder>
<folder>src</folder>
</files>
<languages>
<language tag="en-GB">language/en-GB/plg_content_emailcloak.ini</language>
<language tag="en-GB">language/en-GB/plg_content_emailcloak.sys.ini</language>
</languages>
<config>
<fields name="params">
<fieldset name="basic">
<field
name="mode"
type="list"
label="PLG_CONTENT_EMAILCLOAK_MODE_LABEL"
default="1"
filter="integer"
validate="options"
>
<option value="0">PLG_CONTENT_EMAILCLOAK_NONLINKABLE</option>
<option value="1">PLG_CONTENT_EMAILCLOAK_LINKABLE</option>
</field>
</fieldset>
</fields>
</config>
</extension>

46
plugins/content/emailcloak/services/provider.php Normal file
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<?php
/**
* @package Joomla.Plugin
* @subpackage Content.emailcloak
*
* @copyright (C) 2022 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\DI\Container;
use Joomla\DI\ServiceProviderInterface;
use Joomla\Event\DispatcherInterface;
use Joomla\Plugin\Content\EmailCloak\Extension\EmailCloak;
return new class () implements ServiceProviderInterface {
/**
* Registers the service provider with a DI container.
*
* @param Container $container The DI container.
*
* @return void
*
* @since 4.3.0
*/
public function register(Container $container)
{
$container->set(
PluginInterface::class,
function (Container $container) {
$plugin = new EmailCloak(
$container->get(DispatcherInterface::class),
(array) PluginHelper::getPlugin('content', 'emailcloak')
);
$plugin->setApplication(Factory::getApplication());
return $plugin;
}
);
}
};

494
plugins/content/emailcloak/src/Extension/EmailCloak.php Normal file
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<?php
/**
* @package Joomla.Plugin
* @subpackage Content.emailcloak
*
* @copyright (C) 2006 Open Source Matters, Inc. <https://www.joomla.org>
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
namespace Joomla\Plugin\Content\EmailCloak\Extension;
use Joomla\CMS\Event\Content\ContentPrepareEvent;
use Joomla\CMS\HTML\HTMLHelper;
use Joomla\CMS\Plugin\CMSPlugin;
use Joomla\Event\SubscriberInterface;
use Joomla\String\StringHelper;
// phpcs:disable PSR1.Files.SideEffects
\defined('_JEXEC') or die;
// phpcs:enable PSR1.Files.SideEffects
/**
* Email cloak plugin class.
*
* @since 1.5
*/
final class EmailCloak extends CMSPlugin implements SubscriberInterface
{
/**
* Returns an array of events this subscriber will listen to.
*
* @return array
*
* @since 5.0.0
*/
public static function getSubscribedEvents(): array
{
return ['onContentPrepare' => 'onContentPrepare'];
}
/**
* Plugin that cloaks all emails in content from spambots via Javascript.
*
* @param ContentPrepareEvent $event Event instance
*
* @return void
*/
public function onContentPrepare(ContentPrepareEvent $event)
{
// Don't run if in the API Application
// Don't run this plugin when the content is being indexed
if ($this->getApplication()->isClient('api') || $event->getContext() === 'com_finder.indexer') {
return;
}
// Get content item
$item = $event->getItem();
// If the item does not have a text property there is nothing to do
if (!property_exists($item, 'text')) {
return;
}
$text = $this->cloak($item->text);
if ($text) {
$item->text = $text;
}
}
/**
* Generate a search pattern based on link and text.
*
* @param string $link The target of an email link.
* @param string $text The text enclosed by the link.
*
* @return string A regular expression that matches a link containing the parameters.
*/
private function getPattern($link, $text)
{
$pattern = '~(?:<a ([^>]*)href\s*=\s*"mailto:' . $link . '"([^>]*))>' . $text . '</a>~i';
return $pattern;
}
/**
* Cloak all emails in text from spambots via Javascript.
*
* @param string $text The string to be cloaked.
*
* @return string
*/
private function cloak($text)
{
/*
* Check for presence of {emailcloak=off} which is explicits disables this
* bot for the item.
*/
if (StringHelper::strpos($text, '{emailcloak=off}') !== false) {
return StringHelper::str_ireplace('{emailcloak=off}', '', $text);
}
// Simple performance check to determine whether bot should process further.
if (StringHelper::strpos($text, '@') === false) {
return '';
}
$mode = (int) $this->params->def('mode', 1);
$mode = $mode === 1;
// Example: any@example.org
$searchEmail = '([\w\.\'\-\+]+\@(?:[a-z0-9\.\-]+\.)+(?:[a-zA-Z0-9\-]{2,24}))';
// Example: any@example.org?subject=anyText
$searchEmailLink = $searchEmail . '([?&][\x20-\x7f][^"<>]+)';
// Any Text
$searchText = '((?:[\x20-\x7f]|[\xA1-\xFF]|[\xC2-\xDF][\x80-\xBF]|[\xE0-\xEF][\x80-\xBF]{2}|[\xF0-\xF4][\x80-\xBF]{3})[^<>]+)';
// Any Image link
$searchImage = '(<img[^>]+>)';
// Any Text with <span or <strong
$searchTextSpan = '(<span[^>]+>|<span>|<strong>|<strong><span[^>]+>|<strong><span>)' . $searchText . '(</span>|</strong>|</span></strong>)';
// Any address with <span or <strong
$searchEmailSpan = '(<span[^>]+>|<span>|<strong>|<strong><span[^>]+>|<strong><span>)' . $searchEmail . '(</span>|</strong>|</span></strong>)';
/*
* Search and fix derivatives of link code <a href="http://mce_host/ourdirectory/email@example.org"
* >email@example.org</a>. This happens when inserting an email in TinyMCE, cancelling its suggestion to add
* the mailto: prefix...
*/
$pattern = $this->getPattern($searchEmail, $searchEmail);
$pattern = str_replace('"mailto:', '"([\x20-\x7f][^<>]+/)', $pattern);
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[3][0];
$mailText = $regs[5][0];
$attribsBefore = $regs[1][0];
$attribsAfter = $regs[4][0];
// Check to see if mail text is different from mail addy
$replacement = HTMLHelper::_('email.cloak', $mail, $mode, $mailText, 1, $attribsBefore, $attribsAfter);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[0][1], \strlen($regs[0][0]));
}
/*
* Search and fix derivatives of link code <a href="http://mce_host/ourdirectory/email@example.org"
* >anytext</a>. This happens when inserting an email in TinyMCE, cancelling its suggestion to add
* the mailto: prefix...
*/
$pattern = $this->getPattern($searchEmail, $searchText);
$pattern = str_replace('"mailto:', '"([\x20-\x7f][^<>]+/)', $pattern);
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[3][0];
$mailText = $regs[5][0];
$attribsBefore = $regs[1][0];
$attribsAfter = $regs[4][0];
// Check to see if mail text is different from mail addy
$replacement = HTMLHelper::_('email.cloak', $mail, $mode, $mailText, 0, $attribsBefore, $attribsAfter);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[0][1], \strlen($regs[0][0]));
}
/*
* Search for derivatives of link code <a href="mailto:email@example.org"
* >email@example.org</a>
*/
$pattern = $this->getPattern($searchEmail, $searchEmail);
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[2][0];
$mailText = $regs[4][0];
$attribsBefore = $regs[1][0];
$attribsAfter = $regs[3][0];
// Check to see if mail text is different from mail addy
$replacement = HTMLHelper::_('email.cloak', $mail, $mode, $mailText, 1, $attribsBefore, $attribsAfter);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[0][1], \strlen($regs[0][0]));
}
/*
* Search for derivatives of link code <a href="mailto:email@amail.com"
* ><anyspan >email@amail.com</anyspan></a>
*/
$pattern = $this->getPattern($searchEmail, $searchEmailSpan);
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[2][0];
$mailText = $regs[4][0] . $regs[5][0] . $regs[6][0];
$attribsBefore = $regs[1][0];
$attribsAfter = $regs[3][0];
// Check to see if mail text is different from mail addy
$replacement = HTMLHelper::_('email.cloak', $mail, $mode, $mailText, 1, $attribsBefore, $attribsAfter);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[0][1], \strlen($regs[0][0]));
}
/*
* Search for derivatives of link code <a href="mailto:email@amail.com">
* <anyspan >anytext</anyspan></a>
*/
$pattern = $this->getPattern($searchEmail, $searchTextSpan);
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[2][0];
$mailText = $regs[4][0] . $regs[5][0] . $regs[6][0];
$attribsBefore = $regs[1][0];
$attribsAfter = $regs[3][0];
$replacement = HTMLHelper::_('email.cloak', $mail, $mode, $mailText, 0, $attribsBefore, $attribsAfter);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[0][1], \strlen($regs[0][0]));
}
/*
* Search for derivatives of link code <a href="mailto:email@example.org">
* anytext</a>
*/
$pattern = $this->getPattern($searchEmail, $searchText);
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[2][0];
$mailText = $regs[4][0];
$attribsBefore = $regs[1][0];
$attribsAfter = $regs[3][0];
$replacement = HTMLHelper::_('email.cloak', $mail, $mode, $mailText, 0, $attribsBefore, $attribsAfter);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[0][1], \strlen($regs[0][0]));
}
/*
* Search for derivatives of link code <a href="mailto:email@example.org">
* <img anything></a>
*/
$pattern = $this->getPattern($searchEmail, $searchImage);
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[2][0];
$mailText = $regs[4][0];
$attribsBefore = $regs[1][0];
$attribsAfter = $regs[3][0];
$replacement = HTMLHelper::_('email.cloak', $mail, $mode, $mailText, 0, $attribsBefore, $attribsAfter);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[0][1], \strlen($regs[0][0]));
}
/*
* Search for derivatives of link code <a href="mailto:email@example.org">
* <img anything>email@example.org</a>
*/
$pattern = $this->getPattern($searchEmail, $searchImage . $searchEmail);
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[2][0];
$mailText = $regs[4][0] . $regs[5][0];
$attribsBefore = $regs[1][0];
$attribsAfter = $regs[3][0];
$replacement = HTMLHelper::_('email.cloak', $mail, $mode, $mailText, 1, $attribsBefore, $attribsAfter);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[0][1], \strlen($regs[0][0]));
}
/*
* Search for derivatives of link code <a href="mailto:email@example.org">
* <img anything>any text</a>
*/
$pattern = $this->getPattern($searchEmail, $searchImage . $searchText);
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[2][0];
$mailText = $regs[4][0] . $regs[5][0];
$attribsBefore = $regs[1][0];
$attribsAfter = $regs[3][0];
$replacement = HTMLHelper::_('email.cloak', $mail, $mode, $mailText, 0, $attribsBefore, $attribsAfter);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[0][1], \strlen($regs[0][0]));
}
/*
* Search for derivatives of link code <a href="mailto:email@example.org?
* subject=Text">email@example.org</a>
*/
$pattern = $this->getPattern($searchEmailLink, $searchEmail);
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[2][0] . $regs[3][0];
$mailText = $regs[5][0];
$attribsBefore = $regs[1][0];
$attribsAfter = $regs[4][0];
// Needed for handling of Body parameter
$mail = str_replace('&amp;', '&', $mail);
// Check to see if mail text is different from mail addy
$replacement = HTMLHelper::_('email.cloak', $mail, $mode, $mailText, 1, $attribsBefore, $attribsAfter);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[0][1], \strlen($regs[0][0]));
}
/*
* Search for derivatives of link code <a href="mailto:email@example.org?
* subject=Text">anytext</a>
*/
$pattern = $this->getPattern($searchEmailLink, $searchText);
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[2][0] . $regs[3][0];
$mailText = $regs[5][0];
$attribsBefore = $regs[1][0];
$attribsAfter = $regs[4][0];
// Needed for handling of Body parameter
$mail = str_replace('&amp;', '&', $mail);
$replacement = HTMLHelper::_('email.cloak', $mail, $mode, $mailText, 0, $attribsBefore, $attribsAfter);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[0][1], \strlen($regs[0][0]));
}
/*
* Search for derivatives of link code <a href="mailto:email@amail.com?subject= Text"
* ><anyspan >email@amail.com</anyspan></a>
*/
$pattern = $this->getPattern($searchEmailLink, $searchEmailSpan);
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[2][0] . $regs[3][0];
$mailText = $regs[5][0] . $regs[6][0] . $regs[7][0];
$attribsBefore = $regs[1][0];
$attribsAfter = $regs[4][0];
// Check to see if mail text is different from mail addy
$replacement = HTMLHelper::_('email.cloak', $mail, $mode, $mailText, 1, $attribsBefore, $attribsAfter);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[0][1], \strlen($regs[0][0]));
}
/*
* Search for derivatives of link code <a href="mailto:email@amail.com?subject= Text">
* <anyspan >anytext</anyspan></a>
*/
$pattern = $this->getPattern($searchEmailLink, $searchTextSpan);
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[2][0] . $regs[3][0];
$mailText = $regs[5][0] . $regs[6][0] . $regs[7][0];
$attribsBefore = $regs[1][0];
$attribsAfter = $regs[4][0];
$replacement = HTMLHelper::_('email.cloak', $mail, $mode, $mailText, 0, $attribsBefore, $attribsAfter);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[0][1], \strlen($regs[0][0]));
}
/*
* Search for derivatives of link code
* <a href="mailto:email@amail.com?subject=Text"><img anything></a>
*/
$pattern = $this->getPattern($searchEmailLink, $searchImage);
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[2][0] . $regs[3][0];
$mailText = $regs[5][0];
$attribsBefore = $regs[1][0];
$attribsAfter = $regs[4][0];
// Needed for handling of Body parameter
$mail = str_replace('&amp;', '&', $mail);
// Check to see if mail text is different from mail addy
$replacement = HTMLHelper::_('email.cloak', $mail, $mode, $mailText, 0, $attribsBefore, $attribsAfter);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[0][1], \strlen($regs[0][0]));
}
/*
* Search for derivatives of link code
* <a href="mailto:email@amail.com?subject=Text"><img anything>email@amail.com</a>
*/
$pattern = $this->getPattern($searchEmailLink, $searchImage . $searchEmail);
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[2][0] . $regs[3][0];
$mailText = $regs[5][0] . $regs[6][0];
$attribsBefore = $regs[1][0];
$attribsAfter = $regs[4][0];
// Needed for handling of Body parameter
$mail = str_replace('&amp;', '&', $mail);
// Check to see if mail text is different from mail addy
$replacement = HTMLHelper::_('email.cloak', $mail, $mode, $mailText, 1, $attribsBefore, $attribsAfter);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[0][1], \strlen($regs[0][0]));
}
/*
* Search for derivatives of link code
* <a href="mailto:email@amail.com?subject=Text"><img anything>any text</a>
*/
$pattern = $this->getPattern($searchEmailLink, $searchImage . $searchText);
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[2][0] . $regs[3][0];
$mailText = $regs[5][0] . $regs[6][0];
$attribsBefore = $regs[1][0];
$attribsAfter = $regs[4][0];
// Needed for handling of Body parameter
$mail = str_replace('&amp;', '&', $mail);
// Check to see if mail text is different from mail addy
$replacement = HTMLHelper::_('email.cloak', $mail, $mode, $mailText, 0, $attribsBefore, $attribsAfter);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[0][1], \strlen($regs[0][0]));
}
/*
* Search for plain text email addresses, such as email@example.org but within HTML tags:
* <img src="..." title="email@example.org"> or <input type="text" placeholder="email@example.org">
* The '<[^<]*>(*SKIP)(*F)|' trick is used to exclude this kind of occurrences
*/
$pattern = '~<[^<]*(?<!\/)>(*SKIP)(*F)|<[^>]+?(\w*=\"' . $searchEmail . '\")[^>]*\/>~i';
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[0][0];
$replacement = HTMLHelper::_('email.cloak', $mail, 0, $mail);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[0][1], \strlen($mail));
}
/*
* Search for plain text email addresses, such as email@example.org but within HTML attributes:
* <a title="email@example.org" href="#">email</a> or <li title="email@example.org">email</li>
*/
$pattern = '(<[^>]+?(\w*=\"' . $searchEmail . '")[^>]*>[^<]+<[^<]+>)';
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[0][0];
$replacement = HTMLHelper::_('email.cloak', $mail, 0, $mail);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[0][1], \strlen($mail));
}
/*
* Search for plain text email addresses, such as email@example.org but not within HTML tags:
* <p>email@example.org</p>
* The '<[^<]*>(*SKIP)(*F)|' trick is used to exclude this kind of occurrences
* The '<[^<]*(?<!\/(?:src))>(*SKIP)(*F)|' exclude image files with @ in filename
*/
$pattern = '~<[^<]*(?<!\/(?:src))>(*SKIP)(*F)|' . $searchEmail . '~i';
while (preg_match($pattern, $text, $regs, PREG_OFFSET_CAPTURE)) {
$mail = $regs[1][0];
$replacement = HTMLHelper::_('email.cloak', $mail, $mode, $mail);
// Replace the found address with the js cloaked email
$text = substr_replace($text, $replacement, $regs[1][1], \strlen($mail));
}
return $text;
}
}