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Initial implementation of OpenGraph metadata insertion

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This commit is contained in:
Kijin Sung 2016-05-09 01:36:25 +09:00
parent f84715db5b
commit da1b69c6b7
4 changed files with 227 additions and 10 deletions
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141
classes/display/HTMLDisplayHandler.php
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@ -213,6 +213,12 @@ class HTMLDisplayHandler
// Remove unnecessary information
$output = preg_replace('/member\_\-([0-9]+)/s', 'member_0', $output);
// Add OpenGraph metadata
if (Context::get('module') !== 'admin')
{
$this->_addOpenGraphMetadata();
}
// set icon
$oAdminModel = getAdminModel('admin');
@ -380,6 +386,141 @@ class HTMLDisplayHandler
}
Context::loadFile($matches[2]);
}
/**
* Add OpenGraph metadata tags.
*
* @param string $output
* @return void
*/
function _addOpenGraphMetadata()
{
// Get information about the current request.
$page_type = 'website';
$current_module_info = Context::get('current_module_info');
$site_module_info = Context::get('site_module_info');
$document_srl = Context::get('document_srl');
if ($document_srl)
{
$oDocument = Context::get('oDocument') ?: getModel('document')->getDocument($document_srl, false, false);
if ($oDocument instanceof documentItem && $oDocument->document_srl == $document_srl && !$oDocument->isSecret())
{
$page_type = 'article';
}
}
// Add basic metadata.
Context::addOpenGraphData('og:title', Context::getBrowserTitle());
Context::addOpenGraphData('og:site_name', Context::getSiteTitle());
if ($page_type === 'article')
{
Context::addOpenGraphData('og:description', trim(utf8_normalize_spaces($oDocument->getContentText(200))));
}
else
{
Context::addOpenGraphData('og:description', Context::getMetaTag('description'));
}
// Add metadata about this page.
Context::addOpenGraphData('og:type', $page_type);
if ($page_type === 'article')
{
$document_canonical_url = getFullUrl('', 'mid', $current_module_info->mid, 'document_srl', $document_srl);
Context::addHtmlHeader(sprintf('<link rel="canonical" href="%s" />', escape($document_canonical_url)));
Context::addOpenGraphData('og:url', $document_canonical_url);
}
elseif (($page = Context::get('page')) > 1)
{
Context::addOpenGraphData('og:url', getFullUrl('', 'mid', $current_module_info->mid, 'page', $page));
}
elseif ($current_module_info->module_srl == $site_module_info->module_srl)
{
Context::addOpenGraphData('og:url', Rhymix\Framework\URL::getCurrentDomainURL(\RX_BASEURL));
}
else
{
Context::addOpenGraphData('og:url', getFullUrl('', 'mid', $current_module_info->mid));
}
// Add metadata about the locale.
$lang_type = Context::getLangType();
$locales = (include \RX_BASEDIR . 'common/defaults/locales.php');
if (isset($locales[$lang_type]))
{
Context::addOpenGraphData('og:locale', $locales[$lang_type]);
}
if ($page_type === 'article' && $oDocument->getLangCode() !== $lang_type && isset($locales[$oDocument->getLangCode()]))
{
Context::addOpenGraphData('og:locale:alternate', $locales[$oDocument->getLangCode()]);
}
// Add image.
if ($page_type === 'article')
{
if (($document_images = Rhymix\Framework\Cache::get("seo:document_images:$document_srl")) === null)
{
$document_images = array();
if ($oDocument->hasUploadedFiles())
{
foreach ($oDocument->getUploadedFiles() as $file)
{
if ($file->isvalid !== 'Y' || !preg_match('/\.(?:bmp|gif|jpe?g|png)$/i', $file->uploaded_filename))
{
continue;
}
list($width, $height) = @getimagesize($file->uploaded_filename);
if ($width < 100 && $height < 100)
{
continue;
}
$image = array('filepath' => $file->uploaded_filename, 'width' => $width, 'height' => $height);
if ($file->cover_image === 'Y')
{
array_unshift($document_images, $image);
}
else
{
$document_images[] = $image;
}
if (count($document_images) >= 1)
{
break;
}
}
}
Rhymix\Framework\Cache::set("seo:document_images:$document_srl", $document_images, 0, true);
}
}
else
{
$document_images = null;
}
if ($document_images)
{
$first_image = reset($document_images);
$first_image['filepath'] = preg_replace('/^.\\/files\\//', \RX_BASEURL . 'files/', $first_image['filepath']);
Context::addOpenGraphData('og:image', Rhymix\Framework\URL::getCurrentDomainURL($first_image['filepath']));
Context::addOpenGraphData('og:image:width', $first_image['width']);
Context::addOpenGraphData('og:image:height', $first_image['height']);
}
elseif ($default_image = getAdminModel('admin')->getSiteDefaultImageUrl($width, $height))
{
Context::addOpenGraphData('og:image', Rhymix\Framework\URL::getCurrentDomainURL($default_image));
if ($width && $height)
{
Context::addOpenGraphData('og:image:width', $width);
Context::addOpenGraphData('og:image:height', $height);
}
}
// Add datetime for articles.
if ($page_type === 'article')
{
Context::addOpenGraphData('article:published_time', $oDocument->getRegdate('c'));
Context::addOpenGraphData('article:modified_time', $oDocument->getUpdate('c'));
}
}
/**
* import basic .js files.