public function get_single_mt($tag = 'meta', $type = 'property', $name, $value = '', $cmt = '', $use_post = false)
{
// known exceptions for the 'property' $type
if ($tag === 'meta' && $type === 'property' && (strpos($name, 'twitter:') === 0 || strpos($name, ':') === false)) {
$type = 'name';
}
$ret = array();
$attr = $tag === 'link' ? 'href' : 'content';
$log_pre = $tag . ' ' . $type . ' ' . $name;
$charset = get_bloginfo('charset');
if (is_array($value)) {
if ($this->p->debug->enabled) {
$this->p->debug->log($log_pre . ' value is an array (skipped)');
}
return $ret;
} elseif (is_object($value)) {
if ($this->p->debug->enabled) {
$this->p->debug->log($log_pre . ' value is an object (skipped)');
}
return $ret;
}
if (strpos($value, '%%')) {
$value = $this->p->util->replace_inline_vars($value, $use_post);
}
switch ($name) {
case 'og:image':
case 'og:image:url':
case 'og:video':
case 'og:video:url':
// add secure_url meta tag for open graph images and videos
if (strpos($value, 'https://') === 0) {
$secure_value = $value;
$secure_name = preg_replace('/:url$/', '', $name) . ':secure_url';
$value = preg_replace('/^https:/', 'http:', $value);
$ret[] = array('', $tag, $type, $secure_name, $attr, $secure_value, $cmt);
}
break;
}
$ret[] = array('', $tag, $type, $name, $attr, $value, $cmt);
// filtering of single meta tags can be enabled by defining NGFB_FILTER_SINGLE_TAGS as true
if (defined('NGFB_FILTER_SINGLE_TAGS') && NGFB_FILTER_SINGLE_TAGS) {
$ret = $this->filter_single_mt($ret, $use_post);
}
// $parts = array( $html, $tag, $type, $name, $attr, $value, $cmt );
foreach ($ret as $num => $parts) {
$log_pre = $parts[1] . ' ' . $parts[2] . ' ' . $parts[3];
if ($this->p->debug->enabled) {
$this->p->debug->log($log_pre . ' = "' . $parts[5] . '"');
}
if ($parts[5] === '' || $parts[5] === null) {
// allow for 0
if ($this->p->debug->enabled) {
$this->p->debug->log($log_pre . ' value is empty (skipped)');
}
} elseif ($parts[5] == -1) {
// -1 is reserved
if ($this->p->debug->enabled) {
$this->p->debug->log($log_pre . ' value is -1 (skipped)');
}
} elseif (!empty($this->p->options['add_' . $parts[1] . '_' . $parts[2] . '_' . $parts[3]])) {
// change meta itemtype "image.url" to "url" (for example)
if ($parts[1] === 'meta' && $parts[2] === 'itemprop' && strpos($parts[3], '.') !== 0) {
$parts[3] = preg_replace('/^.*\\./', '', $parts[3]);
}
switch ($parts[3]) {
case 'og:url':
case 'og:image':
case 'og:image:url':
case 'og:image:secure_url':
case 'og:video':
case 'og:video:url':
case 'og:video:url:secure_url':
case 'og:video:url:embed_url':
case 'twitter:image':
case 'twitter:player':
case 'canonical':
case 'url':
$parts[5] = SucomUtil::esc_url_encode($parts[5]);
break;
case 'og:title':
case 'og:description':
case 'twitter:title':
case 'twitter:description':
case 'description':
case 'name':
$parts[5] = wp_encode_emoji(htmlentities($parts[5], ENT_QUOTES, $charset, false));
// double_encode = false
// double_encode = false
default:
$parts[5] = htmlentities($parts[5], ENT_QUOTES, $charset, false);
// double_encode = false
break;
}
$parts[0] = (empty($parts[6]) ? '' : '<!-- ' . $parts[6] . ' -->') . '<' . $parts[1] . ' ' . $parts[2] . '="' . $parts[3] . '" ' . $parts[4] . '="' . $parts[5] . '"/>' . "\n";
$ret[$num] = $parts;
} elseif ($this->p->debug->enabled) {
$this->p->debug->log($log_pre . ' is disabled (skipped)');
}
}
return $ret;
}
