/**
* Count the number of anchors and group them by type.
*
* @param object $xpath An XPATH object of the current document.
*
* @return array
*/
function get_anchor_count(&$xpath)
{
$query = '//a|//A';
$dom_objects = $xpath->query($query);
$count = array('total' => 0, 'internal' => array('nofollow' => 0, 'dofollow' => 0), 'external' => array('nofollow' => 0, 'dofollow' => 0), 'other' => array('nofollow' => 0, 'dofollow' => 0));
if (is_object($dom_objects) && is_a($dom_objects, 'DOMNodeList') && $dom_objects->length > 0) {
foreach ($dom_objects as $dom_object) {
$count['total']++;
if ($dom_object->attributes->getNamedItem('href')) {
$href = $dom_object->attributes->getNamedItem('href')->textContent;
$wpurl = get_bloginfo('url');
if (YMBESEO_Utils::is_url_relative($href) === true || substr($href, 0, strlen($wpurl)) === $wpurl) {
$type = 'internal';
} elseif (substr($href, 0, 4) == 'http') {
$type = 'external';
} else {
$type = 'other';
}
if ($dom_object->attributes->getNamedItem('rel')) {
$link_rel = $dom_object->attributes->getNamedItem('rel')->textContent;
if (stripos($link_rel, 'nofollow') !== false) {
$count[$type]['nofollow']++;
} else {
$count[$type]['dofollow']++;
}
} else {
$count[$type]['dofollow']++;
}
}
}
}
return $count;
}
/**
* This function normally outputs the canonical but is also used in other places to retrieve
* the canonical URL for the current page.
*
* @return void
*/
private function generate_canonical()
{
$canonical = false;
$canonical_override = false;
// Set decent canonicals for homepage, singulars and taxonomy pages.
if (is_singular()) {
$obj = get_queried_object();
$canonical = get_permalink($obj->ID);
$this->canonical_unpaged = $canonical;
$canonical_override = YMBESEO_Meta::get_value('canonical');
// Fix paginated pages canonical, but only if the page is truly paginated.
if (get_query_var('page') > 1) {
$num_pages = substr_count($obj->post_content, '<!--nextpage-->') + 1;
if ($num_pages && get_query_var('page') <= $num_pages) {
if (!$GLOBALS['wp_rewrite']->using_permalinks()) {
$canonical = add_query_arg('page', get_query_var('page'), $canonical);
} else {
$canonical = user_trailingslashit(trailingslashit($canonical) . get_query_var('page'));
}
}
}
} else {
if (is_search()) {
$canonical = get_search_link();
} elseif (is_front_page()) {
$canonical = home_url();
} elseif ($this->is_posts_page()) {
$canonical = get_permalink(get_option('page_for_posts'));
} elseif (is_tax() || is_tag() || is_category()) {
$term = get_queried_object();
$canonical_override = YMBESEO_Taxonomy_Meta::get_term_meta($term, $term->taxonomy, 'canonical');
$canonical = get_term_link($term, $term->taxonomy);
} elseif (is_post_type_archive()) {
$post_type = get_query_var('post_type');
if (is_array($post_type)) {
$post_type = reset($post_type);
}
$canonical = get_post_type_archive_link($post_type);
} elseif (is_author()) {
$canonical = get_author_posts_url(get_query_var('author'), get_query_var('author_name'));
} elseif (is_archive()) {
if (is_date()) {
if (is_day()) {
$canonical = get_day_link(get_query_var('year'), get_query_var('monthnum'), get_query_var('day'));
} elseif (is_month()) {
$canonical = get_month_link(get_query_var('year'), get_query_var('monthnum'));
} elseif (is_year()) {
$canonical = get_year_link(get_query_var('year'));
}
}
}
$this->canonical_unpaged = $canonical;
if ($canonical && get_query_var('paged') > 1) {
global $wp_rewrite;
if (!$wp_rewrite->using_permalinks()) {
if (is_front_page()) {
$canonical = trailingslashit($canonical);
}
$canonical = add_query_arg('paged', get_query_var('paged'), $canonical);
} else {
if (is_front_page()) {
$canonical = YMBESEO_xml_sitemaps_base_url('');
}
$canonical = user_trailingslashit(trailingslashit($canonical) . trailingslashit($wp_rewrite->pagination_base) . get_query_var('paged'));
}
}
}
$this->canonical_no_override = $canonical;
if (is_string($canonical) && $canonical !== '') {
// Force canonical links to be absolute, relative is NOT an option.
if (YMBESEO_Utils::is_url_relative($canonical) === true) {
$canonical = $this->base_url($canonical);
}
}
/**
* Filter: 'YMBESEO_canonical' - Allow filtering of the canonical URL put out by Yoast SEO
*
* @api string $canonical The canonical URL
*/
$canonical = apply_filters('YMBESEO_canonical', $canonical);
if (is_string($canonical_override) && $canonical_override !== '') {
$this->canonical = $canonical_override;
} else {
$this->canonical = $canonical;
}
}
/**
* Display an OpenGraph image tag
*
* @param string $img - Source URL to the image.
*
* @return bool
*/
private function add_image($img)
{
// Filter: 'YMBESEO_opengraph_image' - Allow changing the OpenGraph image.
$img = trim(apply_filters('YMBESEO_opengraph_image', $img));
if (empty($img)) {
return false;
}
if (YMBESEO_Utils::is_url_relative($img) === true) {
$img = $this->get_relative_path($img);
}
if (in_array($img, $this->images)) {
return false;
}
array_push($this->images, $img);
return true;
}
/**
* Parsing the matched images
*
* @param array $matches
* @param object $p
* @param string $scheme
* @param string $host
*
* @return array
*/
private function parse_matched_images($matches, $p, $scheme, $host)
{
$return = array();
foreach ($matches[0] as $img) {
if (preg_match('`src=["\']([^"\']+)["\']`', $img, $match)) {
$src = $match[1];
if (YMBESEO_Utils::is_url_relative($src) === true) {
if ($src[0] !== '/') {
continue;
} else {
// The URL is relative, we'll have to make it absolute.
$src = $this->home_url . $src;
}
} elseif (strpos($src, 'http') !== 0) {
// Protocol relative url, we add the scheme as the standard requires a protocol.
$src = $scheme . ':' . $src;
}
if (strpos($src, $host) === false) {
continue;
}
if ($src != esc_url($src)) {
continue;
}
if (isset($return[$src])) {
continue;
}
$image = array('src' => apply_filters('YMBESEO_xml_sitemap_img_src', $src, $p));
if (preg_match('`title=["\']([^"\']+)["\']`', $img, $title_match)) {
$image['title'] = str_replace(array('-', '_'), ' ', $title_match[1]);
}
unset($title_match);
if (preg_match('`alt=["\']([^"\']+)["\']`', $img, $alt_match)) {
$image['alt'] = str_replace(array('-', '_'), ' ', $alt_match[1]);
}
unset($alt_match);
$image = apply_filters('YMBESEO_xml_sitemap_img', $image, $p);
$return[] = $image;
}
unset($match, $src);
}
return $return;
}
/**
* Check whether a url is relative
*
* @deprecated 1.6.1
* @deprecated use YMBESEO_Utils::is_url_relative()
* @see YMBESEO_Utils::is_url_relative()
*
* @param string $url
*
* @return bool
*/
function YMBESEO_is_url_relative($url)
{
_deprecated_function(__FUNCTION__, 'WPSEO 1.6.1', 'YMBESEO_Utils::is_url_relative()');
return YMBESEO_Utils::is_url_relative($url);
}
