Current Directory: /home/astoriaah/www/components/com_sh404sef
Viewing File: /home/astoriaah/www/components/com_sh404sef/shPageRewrite.full.php
<?php
/**
* sh404SEF - SEO extension for Joomla!
*
* @author Yannick Gaultier
* @copyright (c) Yannick Gaultier - Weeblr llc - 2022
* @package sh404SEF
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL
* @version 4.24.1.4308
* @date 2022-05-31
*/
use Joomla\CMS\Factory;
use Weeblr\Wblib\V_SH4_4308\Html;
defined('_JEXEC') or die('Restricted access');
// V 1.2.4.t check if sh404SEF is running
if (defined('SH404SEF_IS_RUNNING'))
{
// support for improved TITLE, DESCRIPTION, KEYWORDS and ROBOTS head tag
global $shCustomTitleTag, $shCustomDescriptionTag, $shCustomKeywordsTag, $shCustomRobotsTag, $shCustomLangTag, $shCanonicalTag;
// these variables can be set throughout your php code in components, bots or other modules
// the last one wins !
/**
* @param $title
*
* @return mixed|string
*
* @deprecated any time
*/
function shCleanUpTitle($title)
{
return Sh404sefHelperMetadata::cleanUpTitle($title);
}
/**
* @param $title
*
* @return string
*
* @deprecated any time
*/
function shProtectPageTitle($title)
{
return Sh404sefHelperMetadata::protectPageTitle($title);
}
/**
* @param $desc
*
* @return mixed
*
* @deprecated any time
*/
function shCleanUpDesc($desc)
{
return Sh404sefHelperMetadata::cleanUpDesc($desc);
}
/**
* @deprecated any time
*/
function shIncludeMetaPlugin()
{
Sh404sefHelperMetadata::includeMetaPlugin();
}
// utility function to insert data into an html buffer, after, instead or before
// one or more instances of a tag. If last parameter is 'first', then only the
// first occurence of the tag is replaced, or the new value is inserted only
// after or before the first occurence of the tag
function shInsertCustomTagInBuffer($buffer, $tag, $where, $value, $firstOnly)
{
if (!$buffer || !$tag || !$value)
{
return $buffer;
}
$bits = explode($tag, $buffer);
if (count($bits) < 2)
{
return $buffer;
}
$result = $bits[0];
$maxCount = count($bits) - 1;
switch ($where)
{
case 'instead':
for ($i = 0; $i < $maxCount; $i++)
{
$result .= ($firstOnly == 'first' ? ($i == 0 ? $value : $tag) : $value) . $bits[$i + 1];
}
break;
case 'after':
for ($i = 0; $i < $maxCount; $i++)
{
$result .= $tag . ($firstOnly == 'first' ? ($i == 0 ? $value : $tag) : $value) . $bits[$i + 1];
}
break;
default:
for ($i = 0; $i < $maxCount; $i++)
{
$result .= ($firstOnly == 'first' ? ($i == 0 ? $value : $tag) : $value) . $tag . $bits[$i + 1];
}
break;
}
return $result;
}
function shPregInsertCustomTagInBuffer($buffer, $tag, $where, $value, $firstOnly, $rawPattern = false)
{
if (!$buffer || !$tag || !$value)
{
return $buffer;
}
$pattern = $rawPattern ? $tag : '#(' . $tag . ')#iUsu';
switch ($where)
{
case 'instead':
$replacement = $value;
break;
case 'after':
$replacement = '$1' . $value;
break;
default:
$replacement = $value . '$1';
break;
}
$result = preg_replace($pattern, $replacement, $buffer, $firstOnly == 'first' ? 1 : -1);
if (empty($result))
{
$result = $buffer;
ShlSystem_Log::error(
'shlib', '%s::%s::%d: %s', __CLASS__, __METHOD__, __LINE__,
'RegExp failed: invalid character on page ' . Sh404sefFactory::getPageInfo()->currentSefUrl
);
}
return $result;
}
function shDoMultipleH1ToH2Callback($matches)
{
static $firstH1 = true;
static $firstH1Closed = true;
if ($firstH1)
{
$firstH1 = false;
return $matches[0];
}
if ($firstH1Closed && $matches[0] == '</h1')
{
$firstH1Closed = false;
return $matches[0];
}
$result = '<' . (empty($matches[1]) ? '' : '/') . 'h2';
return $result;
}
function shDoRedirectOutboundLinksCallback($matches)
{
if (count($matches) != 2)
{
return empty($matches) ? '' : $matches[0];
}
if (strpos($matches[1], Sh404sefFactory::getPageInfo()->getDefaultFrontLiveSite()) === false)
{
$mask = '<a href="' . Sh404sefFactory::getPageInfo()->getDefaultFrontLiveSite()
. '/index.php?option=com_sh404sef&shtask=redirect&shtarget=%%shM1%%"';
$result = str_replace('%%shM1%%', $matches[1], $mask);
}
else
{
$result = $matches[0];
}
return $result;
}
function shDoInsertOutboundLinksImageCallback($matches)
{
//if (count($matches) != 2 && count($matches) != 3) return empty($matches) ? '' : $matches[0];
$orig = $matches[0];
$bits = explode('href=', $orig);
$part2 = $bits[1]; // 2nd part, after the href=
$sep = substr($part2, 0, 1); // " or ' ?
$link = JString::trim($part2, $sep); // remove first " or '
if (empty($sep))
{
// this should not happen, but it happens (Fireboard)
$result = $matches[0];
return $result;
}
$link = explode($sep, $link);
$link = $link[0]; // keep only the link
$shPageInfo = &Sh404sefFactory::getPageInfo();
$sefConfig = &Sh404sefFactory::getConfig();
if (substr($link, 0, strlen($shPageInfo->getDefaultFrontLiveSite())) != $shPageInfo->getDefaultFrontLiveSite()
&& wbStartsWith($link, array('http://', 'https://'))
&& (empty($shPageInfo->basePath) || substr($link, 0, strlen($shPageInfo->basePath)) != $shPageInfo->basePath)
&& strpos($link, 'pinterest.com') === false
)
{
$mask = '%%shM1%%href="%%shM2%%" %%shM3%% >%%shM4%%<img border="0" alt="%%shM5%%" src="' . $shPageInfo->getDefaultFrontLiveSite()
. '/components/com_sh404sef/images/' . $sefConfig->shImageForOutboundLinks . '"/></a>';
$result = str_replace('%%shM1%%', $bits[0], $mask);
$result = str_replace('%%shM2%%', $link, $result);
$m3 = str_replace($sep . $link . $sep, '', str_replace('</a>', '', $part2)); // remove link from part 2
$bits2 = explode('>', $m3);
$m3 = $bits2[0];
$result = str_replace('%%shM3%%', $m3, $result);
array_shift($bits2); // remove first bit
$m4 = implode('>', $bits2);
$result = str_replace('%%shM4%%', $m4, $result);
$m5 = strip_tags($m4);
$result = str_replace('%%shM5%%', $m5, $result);
}
else
{
$result = $matches[0];
}
return $result;
}
function shDoTitleTags(&$buffer)
{
// Replace TITLE and DESCRIPTION and KEYWORDS
if (empty($buffer))
{
return null;
}
$shPageInfo = Sh404sefFactory::getPageInfo();
$sefConfig = Sh404sefFactory::getConfig();
// V 1.2.4.t protect against error if using shCustomtags without sh404SEF activated
// this should not happen, so we simply do nothing
if (!isset($sefConfig) || empty($shPageInfo->currentNonSefUrl))
{
return null;
}
// read custom meta data from database
if ($sefConfig->shMetaManagementActivated)
{
$metadata = Sh404sefHelperMetadata::getFinalizedCustomMetaData();
// group new tags insertion, better perf
$tagsToInsert = '';
// meta data have been set already through Joomla API at onAfterDispatch
// Optionnaly, we will force them into the page again, in case some
// other extension has modified them
$metaDataOverride = !defined('SH404SEF_OTHER_DO_NOT_OVERRIDE_EXISTING_META_DATA') || SH404SEF_OTHER_DO_NOT_OVERRIDE_EXISTING_META_DATA == 0;
$document = JFactory::getDocument();
if ($metaDataOverride)
{
$headData = $document->getHeadData();
// if document title is != from the one we have in store, override
$customTitle = empty($shPageInfo->pageTitle) ? $document->getTitle() : $shPageInfo->pageTitle;
$customTitle = empty($customTitle) ? $metadata->pageTitle : $customTitle;
$customTitle = empty($customTitle) ? $document->getTitle() : $customTitle;
if (!empty($customTitle) && $document->getTitle() != $customTitle)
{
$shPageInfo->pageTitle = $customTitle;
$shPageInfo->pageTitlePr = Sh404sefHelperMetadata::protectPageTitle($shPageInfo->pageTitle);
$buffer = ShlSystem_Strings::pr('/\<\s*title\s*\>.*\<\s*\/title\s*\>/isuU', '<title>' . $shPageInfo->pageTitlePr . '</title>', $buffer);
$buffer = ShlSystem_Strings::pr('/\<\s*meta\s+[^>]*name\s*=\s*"title.*\/\>/isuU', '', $buffer); // remove any title meta
}
// Priorities: 1/ custom meta in sh404SEF 2/ Meta entered in Joomla 3/ auto-generated
$metadata->pageDescription = empty($metadata->pageDescription) ? '' : $metadata->pageDescription;
$metadata->pageDescription = empty($shPageInfo->pageDescription) ? $metadata->pageDescription : $shPageInfo->pageDescription;
$metadata->pageDescription = empty($metadata->pageDescription) ? $document->getDescription() : $metadata->pageDescription;
$metadata->pageDescription = empty($metadata->pageDescription) ? Sh404sefHelperMetadata::getAutoDescription($buffer) : $metadata->pageDescription;
if (!empty($metadata->pageDescription) && $document->getDescription() != $metadata->pageDescription)
{
$shPageInfo->pageDescription = $metadata->pageDescription;
if (strpos($buffer, '<meta name="description" content=') !== false)
{
$buffer = ShlSystem_Strings::pr(
'/\<\s*meta\s+[^>]*name\s*=\s*"description"[^>]+>/isUu',
'<meta name="description" content="' . $shPageInfo->pageDescription . '" />', $buffer
);
}
else
{
$tagsToInsert .= "\n" . '<meta name="description" content="' . $shPageInfo->pageDescription . '" />';
}
}
if (!empty($metadata->pageKeywords) && !empty($headData['metaTags']['standard']['keywords'])
&& $headData['metaTags']['standard']['keywords'] != $metadata->pageKeywords
)
{
$shPageInfo->pageKeywords = $metadata->pageKeywords;
if (strpos($buffer, '<meta name="keywords" content=') !== false)
{
$buffer = ShlSystem_Strings::pr(
'/\<\s*meta\s+[^>]*name\s*=\s*"keywords"[^>]+>/isUu',
'<meta name="keywords" content="' . $shPageInfo->pageKeywords . '" />', $buffer
);
}
else
{
$tagsToInsert .= "\n" . '<meta name="keywords" content="' . $shPageInfo->pageKeywords . '" />';
}
}
/**
* Filter the meta robots just before it's inserted into the page.
*
* @param string $robots The meta robots to be inserted
* @param Sh404sefClassPageinfo $pageInfo An object describing the current page.
*
* @return string
* @since 4.20.4
*
* @api
* @package sh404SEF\filter\output
* @var sh404sef_meta_robots
*/
$metadata->pageRobotsTag = shlHook::filter(
'sh404sef_meta_robots',
$metadata->pageRobotsTag,
$shPageInfo
);
if (!empty($metadata->pageRobotsTag) &&
(
empty($headData['metaTags']['standard']['robots'])
||
(
!empty($headData['metaTags']['standard']['robots'])
&& $headData['metaTags']['standard']['robots'] != $metadata->pageRobotsTag
)
)
)
{
$shPageInfo->pageRobotsTag = $metadata->pageRobotsTag;
if (strpos($buffer, '<meta name="robots" content=') !== false)
{
$buffer = ShlSystem_Strings::pr(
'/\<\s*meta\s+[^>]*name\s*=\s*"robots"[^>]+>/isUu',
'<meta name="robots" content="' . $shPageInfo->pageRobotsTag . '" />', $buffer
);
}
else
{
$tagsToInsert .= "\n" . '<meta name="robots" content="' . $shPageInfo->pageRobotsTag . '" />';
}
}
if (!empty($metadata->pageLangTag))
{
$shPageInfo->pageLangTag = $metadata->pageLangTag;
if (strpos($buffer, '<meta http-equiv="Content-Language"') !== false)
{
$buffer = ShlSystem_Strings::pr(
'/\<\s*meta\s+http-equiv\s*=\s*"Content-Language"[^>]+>/isUu',
'<meta http-equiv="Content-Language" content="' . $metadata->pageLangTag . '" />', $buffer
);
}
else
{
$tagsToInsert .= "\n" . '<meta http-equiv="Content-Language" content="' . $metadata->pageLangTag . '" />';
}
}
}
else
{
$shPageInfo->pageTitle = Sh404sefHelperMetadata::cleanUpTitle($document->getTitle());
$shPageInfo->pageTitlePr = Sh404sefHelperMetadata::protectPageTitle($shPageInfo->pageTitle);
$shPageInfo->pageDescription = Sh404sefHelperMetadata::cleanUpDesc($document->getDescription());
}
// custom handling of canonical
$canonicalPattern = '/\<\s*link[^>]+rel\s*=\s*"canonical[^>]+\/\>/isUu';
$matches = array();
$canonicalCount = preg_match_all($canonicalPattern, $buffer, $matches);
// more than one canonical already: kill them all
if ($canonicalCount > 1 && Sh404sefFactory::getConfig()->removeOtherCanonicals)
{
$buffer = ShlSystem_Strings::pr($canonicalPattern, '', $buffer);
$canonicalCount = 0;
} // only one and J3: must be the one inserted by J3 SEF plugin
else if ($canonicalCount > 0 && Sh404sefFactory::getConfig()->removeOtherCanonicals && version_compare(JVERSION, '3.0', 'ge')
&& JFactory::getApplication()->input->getCmd('option') == 'com_content'
)
{
// kill it, if asked to
$buffer = ShlSystem_Strings::pr($canonicalPattern, '', $buffer);
$canonicalCount = 0;
}
// do we have a canonical set by user with an alias?
$uri = JUri::getInstance();
$aliasCanonical = Sh404sefFactory::getRedirector($uri)
->getAliasToExecute();
if (!empty($aliasCanonical))
{
$metadata->canonical = $aliasCanonical;
}
// always add a canonical on home page
// especially useful on multilingual sites where language code is used
// also on default language EXCEPT if language code is preserved on default language
if (empty($metadata->canonical) && Sh404sefHelperUrl::isNonSefHomepage())
{
$languageFilterParams = Sh404sefHelperGeneral::getExtensionParams(
'plg_language_filter', array(
'type' => 'plugin',
'element' => 'languagefilter',
'folder' => 'system',
'enabled' => 1
)
);
if (0 !== $languageFilterParams->get('remove_default_prefix'))
{
$metadata->canonical = Sh404sefHelperUrl::canonicalRoutedToAbs('/');
}
}
// make sure canonical is absolute, to avoid users complaining despite links being totally fine see #342
if (!empty($metadata->canonical) && substr($metadata->canonical, 0, 1) == '/')
{
$metadata->canonical = Sh404sefHelperUrl::canonicalRoutedToAbs($metadata->canonical);
}
// store finally computed canonical, for other uses (OGP,...)
Sh404sefFactory::getPageInfo()->pageCanonicalUrl = $metadata->canonical;
// if there' a custom canonical for that page, insert it, or replace any existing ones
if (!empty($metadata->canonical) && $canonicalCount == 0)
{
// insert a new canonical
$tagsToInsert .= "\n" . '<link href="' . htmlspecialchars($metadata->canonical, ENT_COMPAT, 'UTF-8') . '" rel="canonical" />' . "\n";
}
else if (!empty($metadata->canonical))
{
// replace existing canonical
$buffer = ShlSystem_Strings::pr(
$canonicalPattern,
'<link href="' . htmlspecialchars($metadata->canonical, ENT_COMPAT, 'UTF-8') . '" rel="canonical" />', $buffer
);
}
// insert all tags in one go
if (!empty($tagsToInsert))
{
$buffer = shInsertCustomTagInBuffer($buffer, '<head>', 'after', $tagsToInsert, 'first');
}
// remove Generator tag
if ($sefConfig->shRemoveGeneratorTag)
{
$buffer = ShlSystem_Strings::pr('/<meta\s*name="generator"\s*content="[^"]*"\s*\/?>/iUu', '', $buffer);
}
// put <h1> tags around content elements titles
if ($sefConfig->shPutH1Tags)
{
if (strpos($buffer, 'class="componentheading') !== false)
{
$buffer = ShlSystem_Strings::pr(
'/<div class="componentheading([^>]*)>\s*(.*)\s*<\/div>/isUu',
'<div class="componentheading$1><h1>$2</h1></div>', $buffer
);
$buffer = ShlSystem_Strings::pr(
'/<td class="contentheading([^>]*)>\s*(.*)\s*<\/td>/isUu',
'<td class="contentheading$1><h2>$2</h2></td>', $buffer
);
}
else
{ // replace contentheading by h1
$buffer = ShlSystem_Strings::pr(
'/<td class="contentheading([^>]*)>\s*(.*)\s*<\/td>/isUu',
'<td class="contentheading$1><h1>$2</h1></td>', $buffer
);
}
}
// version x : if multiple h1 headings, replace them by h2
if ($sefConfig->shMultipleH1ToH2 && substr_count(JString::strtolower($buffer), '<h1') > 1)
{
$tmp = preg_replace_callback('#<(\/)?h1#sUu', 'shDoMultipleH1ToH2Callback', $buffer);
$buffer = !empty($tmp) ? $tmp : $buffer;
}
// V 1.3.1 : replace outbounds links by internal redirects
if (sh404SEF_REDIRECT_OUTBOUND_LINKS)
{
$tmp = preg_replace_callback('/<\s*a\s*href\s*=\s*"(.*)"/isUu', 'shDoRedirectOutboundLinksCallback', $buffer);
if (empty($tmp))
{
ShlSystem_Log::error(
'shlib', '%s::%s::%d: %s', __CLASS__, __METHOD__, __LINE__,
'RegExp failed: invalid character on page ' . Sh404sefFactory::getPageInfo()->currentSefUrl
);
}
else
{
$buffer = $tmp;
}
}
// V 1.3.1 : add symbol to outbounds links
if ($sefConfig->shInsertOutboundLinksImage)
{
$tmp = preg_replace_callback("/<\s*a\s*href\s*=\s*(\"|').*(\"|')\s*>.*<\/a>/isUu", 'shDoInsertOutboundLinksImageCallback', $buffer);
if (empty($tmp))
{
ShlSystem_Log::error(
'shlib', '%s::%s::%d: %s', __CLASS__, __METHOD__, __LINE__,
'RegExp failed: invalid character on page ' . Sh404sefFactory::getPageInfo()->currentSefUrl
);
}
else
{
$buffer = $tmp;
}
}
// all done
return $buffer;
}
}
function shDoAnalytics(&$buffer)
{
// get sh404sef config
$config = Sh404sefFactory::getConfig();
// check if set to insert snippet
if (!Sh404sefHelperAnalytics::isEnabled())
{
return;
}
// calculate params
$className = 'Sh404sefAdapterAnalytics' . strtolower($config->analyticsType);
$handler = new $className();
// do insert
$snippet = $handler->getSnippet();
if (empty($snippet))
{
return;
}
// use page rewrite utility function to insert as needed
if ($config->analyticsEdition != 'gtm')
{
$buffer = shInsertCustomTagInBuffer($buffer, '</head>', 'before', $snippet, $firstOnly = 'first');
}
else
{
$buffer = shPregInsertCustomTagInBuffer($buffer, '<\s*body[^>]*>', 'after', "\n" . wbArrayGet($snippet, 'body'), $firstOnly = 'first');
// head, as high as possible
$buffer = shInsertCustomTagInBuffer($buffer, '</title>', 'after', "\n" . wbArrayGet($snippet, 'head'), $firstOnly = 'first');
}
}
function shDoSocialButtons(&$buffer)
{
// get sh404sef config
$sefConfig = Sh404sefFactory::getConfig();
$dispatcher = ShlSystem_factory::dispatcher();
// fire event so that social plugin can attach required external js and css
$dispatcher->trigger('onSh404sefInsertSocialButtons', array(&$buffer, $sefConfig));
// fire event so that social plugin can attach required external js
$dispatcher->trigger('onSh404sefInsertFBJavascriptSDK', array(&$buffer, $sefConfig));
}
function shDoSocialAnalytics(&$buffer)
{
// get sh404sef config
$sefConfig = Sh404sefFactory::getConfig();
// check if set to insert snippet
if (!Sh404sefHelperAnalytics::isEnabled())
{
return;
}
// fire event so that social plugin can attach required external js
$dispatcher = ShlSystem_factory::dispatcher();
$dispatcher->trigger('onSh404sefInsertFBJavascriptSDK', array(&$buffer, $sefConfig));
}
function shDoShURL(&$buffer)
{
// get sh404sef config
$sefConfig = Sh404sefFactory::getConfig();
// check if shURLs are enabled
if (!$sefConfig->Enabled || !$sefConfig->enablePageId)
{
return;
}
// get current page information
$shPageInfo = &Sh404sefFactory::getPageInfo();
// insert shURL if tag found, except if editing item on frontend
if (strpos($buffer, '{sh404sef_pageid}') !== false || strpos($buffer, '{sh404sef_shurl}') !== false)
{
// replace editor contents with placeholder text
$buffer = str_replace(array('{sh404sef_pageid}', '{sh404sef_shurl}'), $shPageInfo->shURL, $buffer);
}
}
function shDoQrCode(&$buffer)
{
// get sh404sef config
$sefConfig = Sh404sefFactory::getConfig();
// check if shURLs are enabled
if (!$sefConfig->Enabled)
{
return;
}
// are we on an edit page?
if ('edit' == Factory::getApplication()->input->getCmd('layout'))
{
return;
}
// get current page information
$shPageInfo = Sh404sefFactory::getPageInfo();
// insert shURL if tag found, except if editing item on frontend
$regExp = '#{sh404sef_qrcode(.*)}#Uus';
// search for our marker}
if (preg_match_all($regExp, $buffer, $matches, PREG_SET_ORDER) > 0)
{
// process matches
foreach ($matches as $id => $match)
{
$url = $shPageInfo->currentSefUrl;
$size = 'small';
// extract target URL
if (!empty($match[1]))
{
//normally, there is no quotes around attributes
// but a description will probably have spaces, so we
// now try to get attributes from both syntax
$attributes = JUtility::parseAttributes($match[1]);
$url = empty($attributes['url']) ? $url : $attributes['url'];
$size = empty($attributes['size']) ? $size : $attributes['size'];
// zxing.org to tec-it.com change in size handling
if ($size > 547)
{
$size = 'large';
}
else if ($size > 347)
{
$size = 'medium';
}
}
$qrCode = Html\Qrcode::getImageTag(
$url,
[
'alt' => 'QR Code',
'class' => 'sh404sef_qrcode'
],
[
'size' => $size
]
);
// replace in document
$buffer = str_replace($match[0], $qrCode, $buffer);
}
}
}
function shInsertOpenGraphData(&$buffer)
{
$tags = Sh404sefHelperOgp::buildOpenGraphTags();
// actually insert the tags
if (!empty($tags['openGraphData']))
{
$buffer = shInsertCustomTagInBuffer($buffer, '</head>', 'before', $tags['openGraphData'], 'first');
}
if (!empty($tags['fbNameSpace']) || !empty($tags['ogNameSpace']))
{
// insert as well namespaces
$buffer = str_replace('<html ', '<html ' . $tags['ogNameSpace'] . ' ' . $tags['fbNameSpace'] . ' ', $buffer);
}
}
function insertStructuredData(&$buffer)
{
$markup = Sh404sefHelperStructureddata::buildStructuredData();
if (!empty($markup))
{
$buffer = shInsertCustomTagInBuffer($buffer, '</head>', 'before', "\n" . $markup . "\n", 'first');
}
}
function shInsertTwitterCardsData(&$buffer)
{
$twitterCardsData = Sh404sefHelperTcards::buildTwitterCardsTags();
// actually insert the tags
if (!empty($twitterCardsData))
{
$buffer = shInsertCustomTagInBuffer($buffer, '</head>', 'before', $twitterCardsData, 'first');
}
}
function shDoHeadersChanges()
{
global $shCanonicalTag;
$sefConfig = Sh404sefFactory::getConfig();
$pageInfo = Sh404sefFactory::getPageInfo();
if (!isset($sefConfig) || empty($sefConfig->shMetaManagementActivated) || empty($pageInfo->currentNonSefUrl))
{
return;
}
// include plugin to build canonical if needed
Sh404sefHelperMetadata::includeMetaPlugin();
// issue headers for canonical
if (!empty($shCanonicalTag))
{
jimport('joomla.utilities.string');
$link = JURI::base() . ltrim($sefConfig->shRewriteStrings[$sefConfig->shRewriteMode], '/')
. JString::ltrim($shCanonicalTag, '/');
JResponse::setHeader('Link', '<' . htmlspecialchars($link, ENT_COMPAT, 'UTF-8') . '>; rel="canonical"');
}
}
function shAddPaginationHeaderLinks(&$buffer)
{
$sefConfig = &Sh404sefFactory::getConfig();
if (!isset($sefConfig) || empty($sefConfig->shMetaManagementActivated) || empty($sefConfig->insertPaginationTags))
{
return;
}
$pageInfo = Sh404sefFactory::getPageInfo();
// handle pagination
if (!empty($pageInfo->paginationNextLink))
{
$link = "\n " . '<link rel="next" href="' . $pageInfo->paginationNextLink . '" />';
$buffer = shInsertCustomTagInBuffer($buffer, '<head>', 'after', $link, 'first');
}
if (!empty($pageInfo->paginationPrevLink))
{
$link = "\n " . '<link rel="prev" href="' . $pageInfo->paginationPrevLink . '" />';
$buffer = shInsertCustomTagInBuffer($buffer, '<head>', 'after', $link, 'first');
}
}
function shFixHrefLang(&$buffer)
{
// if not home page
$pageInfo = Sh404sefFactory::getPageInfo();
if ($pageInfo->currentNonSefUrl != $pageInfo->homeLink)
{
return;
}
if (strpos($buffer, 'rel="alternate" hreflang=') !== false)
{
return;
}
$languageFilterParams = Sh404sefHelperGeneral::getExtensionParams(
'plg_language_filter', array(
'type' => 'plugin',
'element' => 'languagefilter',
'folder' => 'system',
'enabled' => 1
)
);
if ($languageFilterParams->get('alternate_meta'))
{
$languages = Sh404sefHelperLanguage::getActiveLanguages();
$config = Sh404sefFactory::getConfig();
foreach ($languages as $key => $language)
{
$sefCode = JString::ltrim($config->shRewriteStrings[$config->shRewriteMode] . $language->sef, '/');
if (!empty($language->active))
{
$url = JURI::base();
}
else
{
$url = JURI::base() . $sefCode . '/';
}
$link = "\n " . '<link href="' . $url . '" rel="alternate" hreflang="' . $language->lang_code . '" />';
$buffer = shInsertCustomTagInBuffer($buffer, '<head>', 'after', $link, 'first');
}
}
}
function shInsertCustomRawContent(&$buffer)
{
$config = Sh404sefFactory::getConfig();
if (!$config->shMetaManagementActivated)
{
return;
}
$metadata = Sh404sefHelperMetadata::getFinalizedCustomMetaData();
$pageInfo = Sh404sefFactory::getPageInfo();
// top of head
$snippet = empty($metadata->raw_content_head_top) ? $config->rawContentHeadTop : $metadata->raw_content_head_top;
/**
* Filter the raw content to be inserted just after the <head> tag.
*
* @param string $snippet The snippet to be inserted.
* @param Sh404sefClassPageinfo $pageInfo An object describing the current page.
*
* @return string
* @since 4.17.1
*
* @api
* @package sh404SEF\filter\output
* @var sh404sef_raw_content_head_top
*/
$snippet = shlHook::filter(
'sh404sef_raw_content_head_top',
$snippet,
$pageInfo
);
if (!empty($snippet))
{
$snippet = "\n<!-- sh404SEF: Top of head custom raw content -->\n" . $snippet . "\n<!-- /sh404SEF -->\n";
$buffer = shPregInsertCustomTagInBuffer($buffer, '<\s*head[^>]*>', 'after', "\n" . $snippet, $firstOnly = 'first');
}
// bottom of head
$snippet = empty($metadata->raw_content_head_bottom) ? $config->rawContentHeadBottom : $metadata->raw_content_head_bottom;
/**
* Filter the raw content to be inserted just before the closing </head> tag.
*
* @param string $snippet The snippet to be inserted.
* @param Sh404sefClassPageinfo $pageInfo An object describing the current page.
*
* @return string
* @since 4.17.1
*
* @api
* @package sh404SEF\filter\output
* @var sh404sef_raw_content_head_bottom
*/
$snippet = shlHook::filter(
'sh404sef_raw_content_head_bottom',
$snippet,
$pageInfo
);
if (!empty($snippet))
{
$snippet = "\n<!-- sh404SEF: Bottom of head custom raw content -->\n" . $snippet . "\n<!-- /sh404SEF -->\n";
$buffer = shInsertCustomTagInBuffer($buffer, '</head>', 'before', "\n" . $snippet . "\n", $firstOnly = 'first');
}
// top of body
$snippet = empty($metadata->raw_content_body_top) ? $config->rawContentBodyTop : $metadata->raw_content_body_top;
/**
* Filter the raw content to be inserted just after the <body> tag.
*
* @param string $snippet The snippet to be inserted.
* @param Sh404sefClassPageinfo $pageInfo An object describing the current page.
*
* @return string
* @since 4.17.1
*
* @api
* @package sh404SEF\filter\output
* @var sh404sef_raw_content_body_top
*/
$snippet = shlHook::filter(
'sh404sef_raw_content_body_top',
$snippet,
$pageInfo
);
if (!empty($snippet))
{
$snippet = "\n<!-- sh404SEF: Top of body custom raw content -->\n" . $snippet . "\n<!-- /sh404SEF -->\n";
$buffer = shPregInsertCustomTagInBuffer($buffer, '<\s*body[^>]*>', 'after', "\n" . $snippet, $firstOnly = 'first');
}
// bottom of body
$snippet = empty($metadata->raw_content_body_bottom) ? $config->rawContentBodyBottom : $metadata->raw_content_body_bottom;
/**
* Filter the raw content to be inserted just before the closing </body> tag.
*
* @param string $snippet The snippet to be inserted.
* @param Sh404sefClassPageinfo $pageInfo An object describing the current page.
*
* @return string
* @since 4.17.1
*
* @api
* @package sh404SEF\filter\output
* @var sh404sef_raw_content_body_bottom
*/
$snippet = shlHook::filter(
'sh404sef_raw_content_body_bottom',
$snippet,
$pageInfo
);
if (!empty($snippet))
{
$snippet = "\n<!-- sh404SEF: Bottom of body custom raw content -->\n" . $snippet . "\n<!-- /sh404SEF -->\n";
$buffer = shInsertCustomTagInBuffer($buffer, '</body>', 'before', "\n" . $snippet . "\n", $firstOnly = 'first');
}
}
function shRemoveContentTags(&$buffer)
{
$tags = array(
'sh404sef_tag_description',
'sh404sef_tag_ogp_image',
'sh404sef_tag_social_need_fb_sdk',
'sh404sef_tag_social_need_tracking'
);
foreach ($tags as $tag)
{
$buffer = Sh404sefHelperGeneral::removeCommentedTag(
$buffer,
$tag
);
}
}
// begin main output --------------------------------------------------------
// check we are outputting document for real
$document = JFactory::getDocument();
$pageInfo = Sh404sefFactory::getPageInfo();
if (
$document->getType() == 'html'
&&
JFactory::getApplication()->input->getCmd('format') != 'raw'
)
{
$shPage = JResponse::getBody();
// provide a hreflang set when language filter fails to do so
shFixHrefLang($shPage, $document, $pageInfo);
// do TITLE and DESCRIPTION and KEYWORDS and ROBOTS tags replacement
shDoTitleTags($shPage);
// sharing buttons
shDoSocialButtons($shPage);
// insert analytics snippet
shDoAnalytics($shPage);
shDoSocialAnalytics($shPage);
// insert short urls stuff
shDoShURL($shPage);
shDoQrCode($shPage);
// Google structured data
if (empty($pageInfo->httpStatus) || $pageInfo->httpStatus == 200)
{
insertStructuredData($shPage);
}
// Open Graph data
shInsertOpenGraphData($shPage);
// Twitter cards data
shInsertTwitterCardsData($shPage);
// pagination links for lists
shAddPaginationHeaderLinks($shPage);
// insert custom content tags
shInsertCustomRawContent($shPage);
// remove content put in tags
shRemoveContentTags($shPage);
if (Sh404sefFactory::getConfig()->displayUrlCacheStats)
{
$shPage .= Sh404sefHelperCache::getCacheStats();
}
JResponse::setBody($shPage);
}
else
{
shDoHeadersChanges();
}
}