function amt_add_og_xml_namespace($content)
{
$options = amt_get_options();
if ($options['og_add_xml_namespaces'] == '1') {
//return ' xmlns:og="http://ogp.me/ns#" ' . $content;
return ' xmlns="http://www.w3.org/1999/xhtml" xmlns:og="http://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml" ' . $content;
}
return $content;
}
function amt_user_extra_fields_save($user_id)
{
/* Verify the nonce before proceeding. */
// Verify this came from the our screen and with proper authorization,
// because save_post can be triggered at other times
if (!isset($_POST['amt_noncename']) || !wp_verify_nonce($_POST['amt_noncename'], plugin_basename(AMT_PLUGIN_FILE))) {
return;
}
// Get the Metadata metabox permissions (filtered)
$metabox_permissions = amt_get_metadata_metabox_permissions();
// Global Metadata metabox permission check (can be user customized via filter).
if (!current_user_can($metabox_permissions['global_metabox_capability'])) {
return;
}
// Get the Add-Meta-Tags options.
$options = amt_get_options();
// Check if the current user has permission to edit the post.
if (!current_user_can('edit_published_posts')) {
return;
}
// OK, we're authenticated: we need to find and save the data
//
// Sanitize user input
//
// Full metatags - We allow only <meta> elements.
if (isset($_POST['amt_custom_full_metatags'])) {
$full_metatags_value = esc_textarea(wp_kses(stripslashes($_POST['amt_custom_full_metatags']), amt_get_allowed_html_kses()));
}
// Image URL
if (isset($_POST['amt_custom_image_url'])) {
$image_url_value = amt_esc_id_or_url_notation(stripslashes($_POST['amt_custom_image_url']));
}
// If a value has not been entered we try to delete existing data from the database
// If the user has entered data, store it in the database.
// Add-Meta-Tags custom field names
$amt_full_metatags_field_name = '_amt_user_full_metatags';
$amt_image_url_field_name = '_amt_user_image_url';
// As an extra security measure, here we also check the user-defined per box
// permissions before we save any data in the database.
// per user profile full meta tags
if ($options['metabox_user_enable_full_metatags'] == '1' && current_user_can($metabox_permissions['user_full_metatags_box_capability'])) {
if (empty($full_metatags_value)) {
delete_user_meta($user_id, $amt_full_metatags_field_name);
} else {
update_user_meta($user_id, $amt_full_metatags_field_name, $full_metatags_value);
}
}
// Image URL
if ($options['metabox_user_enable_image_url'] == '1' && current_user_can($metabox_permissions['user_image_url_box_capability'])) {
if (empty($image_url_value)) {
delete_user_meta($user_id, $amt_image_url_field_name);
} else {
update_user_meta($user_id, $amt_image_url_field_name, $image_url_value);
}
}
}
function amt_add_schemaorg_metadata_comment_filter($comment_text)
{
global $post, $comment;
$options = amt_get_options();
if ($options["omit_vendor_html_comments"] == "0") {
$metadata_arr[] = '<!-- BEGIN Metadata added by the Add-Meta-Tags WordPress plugin -->';
}
$metadata_arr[] = '<!-- Scope BEGIN: UserComments -->';
$metadata_arr[] = '<div itemprop="comment" itemscope itemtype="http://schema.org/UserComments">';
// Comment Author
$metadata_arr[] = '<!-- Scope BEGIN: Person -->';
$metadata_arr[] = '<span itemprop="creator" itemscope itemtype="http://schema.org/Person"' . amt_get_schemaorg_itemref('person_commenter') . '>';
// name
$metadata_arr[] = '<meta itemprop="name" content="' . esc_attr($comment->comment_author) . '" />';
// url
if (!empty($comment->comment_author_url)) {
// $metadata_arr[] = '<meta itemprop="url" content="' . esc_url( $comment->comment_author_url ) . '" />';
}
// gravatar
if (!empty($comment->comment_author_email)) {
// Contruct gravatar link
$gravatar_url = "http://www.gravatar.com/avatar/" . md5($comment->comment_author_email) . "?s=" . 44;
$metadata_arr[] = '<meta itemprop="image" content="' . esc_url_raw($gravatar_url) . '" />';
}
// END
$metadata_arr[] = '</span> <!-- Scope END: Person -->';
$metadata_arr[] = '<meta itemprop="url" content="' . esc_url_raw(get_permalink($post->ID) . '#comment-' . get_comment_ID()) . '" />';
$metadata_arr[] = '<meta itemprop="commentTime" content="' . esc_attr(get_comment_time('c')) . '" />';
$metadata_arr[] = '<meta itemprop="replyToUrl" content="' . get_permalink($post->ID) . '?replytocom=' . $comment->comment_ID . '#respond' . '" />';
$metadata_arr[] = '<div itemprop="commentText">';
$metadata_arr[] = $comment_text;
$metadata_arr[] = '</div> <!-- itemprop.commentText -->';
$metadata_arr[] = '</div> <!-- Scope END: UserComments -->';
if ($options["omit_vendor_html_comments"] == "0") {
$metadata_arr[] = '<!-- END Metadata added by the Add-Meta-Tags WordPress plugin -->';
}
// Allow filtering of the generated metadata
$metadata_arr = apply_filters('amt_schemaorg_comments_extra', $metadata_arr, $post, $comment);
return PHP_EOL . implode(PHP_EOL, $metadata_arr) . PHP_EOL . PHP_EOL;
//return implode( '', $metadata_arr );
}
/**
* Export settings and data to standard output.
*
* ## OPTIONS
*
* <what>
* : The type of data to be exported. Supported: settings|postdata|userdata|termdata
*
* ## EXAMPLES
*
* wp amt export settings > amt-settings.json
* wp amt export postdata > amt-postdata.json
* wp amt export userdata > amt-userdata.json
* wp amt export termdata > amt-termdata.json
*
* @synopsis <settings|postdata|userdata|termdata>
*/
function export($args, $assoc_args)
{
list($what) = $args;
if (!in_array($what, array('settings', 'postdata', 'userdata', 'termdata'))) {
WP_CLI::error('Invalid argument: ' . $what . ' (valid: settings|postdata|userdata|termdata)');
}
$output = array();
// Export AMT settings
if ($what == 'settings') {
$opts = amt_get_options();
// Every time Add-Meta-Tags is run it checks and upgrades its settings.
// Here we perform a check whether the returned settings are the defaults.
//$default_options = amt_get_default_options();
//var_dump(array_diff($opts, $default_options));
//if ( empty( array_diff($opts, $default_options) ) ) {
// WP_CLI::error( 'No custom settings detected.' );
//}
if (empty($opts)) {
WP_CLI::error('Could not retrieve Add-Meta-Tags options.');
}
$output = $opts;
} elseif ($what == 'postdata') {
$qr_args = array('numberposts' => -1, 'post_type' => 'any', 'post_status' => 'any', 'orderby' => 'id', 'order' => 'ASC', 'suppress_filters' => true);
$posts_arr = get_posts($qr_args);
$amt_post_fields = amt_get_post_custom_field_names();
foreach ($posts_arr as $post) {
foreach ($amt_post_fields as $amt_post_field) {
$amt_post_field_value = get_post_meta($post->ID, $amt_post_field, true);
//var_dump($amt_field_value);
if (!empty($amt_post_field_value)) {
// Export format: <post_id>;<amt_post_field>;<serialized_value>
//echo json_encode( sprintf( '%s;%s;%s', $post->ID, $amt_field, $amt_field_value ) );
$output[] = array($post->ID, $amt_post_field, $amt_post_field_value);
}
}
}
} elseif ($what == 'userdata') {
$qr_args = array('orderby' => 'login', 'order' => 'ASC', 'fields' => 'all');
$users_arr = get_users($qr_args);
$amt_user_fields = amt_get_user_custom_field_names();
foreach ($users_arr as $user) {
foreach ($amt_user_fields as $amt_user_field) {
$amt_user_field_value = get_user_meta($user->ID, $amt_user_field, true);
if (!empty($amt_user_field_value)) {
// Export format: <user_id>;<amt_user_field>;<serialized_value>
//echo json_encode( sprintf( '%s;%s;%s', $post->ID, $amt_field, $amt_field_value ) );
$output[] = array($user->ID, $amt_user_field, $amt_user_field_value);
}
}
}
} elseif ($what == 'termdata') {
// Get taxonomies
// Get the custom taxonomy names.
// Arguments in order to retrieve all public custom taxonomies
$tax_args = array('public' => true, '_builtin' => true);
$tax_output = 'names';
// names or objects
$tax_operator = 'and';
// 'and' or 'or'
$taxonomies = get_taxonomies($tax_args, $tax_output, $tax_operator);
// Get terms
$qr_args = array('orderby' => 'id', 'order' => 'ASC', 'fields' => 'all');
$terms_arr = get_terms($taxonomies, $qr_args);
// Iterate over our fields and export
$amt_term_fields = amt_get_term_custom_field_names();
foreach ($terms_arr as $term) {
foreach ($amt_term_fields as $amt_term_field) {
$amt_term_field_value = get_term_meta($term->term_id, $amt_term_field, true);
if (!empty($amt_term_field_value)) {
// Export format: <term_id>;<amt_term_field>;<serialized_value>
//echo json_encode( sprintf( '%s;%s;%s', $term->term_id, $amt_field, $amt_field_value ) );
$output[] = array($term->term_id, $amt_term_field, $amt_term_field_value);
}
}
}
}
// Print output
if (!empty($output)) {
echo json_encode($output, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
}
}
function amt_metadata_analysis($default_text, $metadata_block_head, $metadata_block_footer, $metadata_block_content_filter)
{
// Analysis is appended only o content pages
if (!is_singular()) {
return $default_text;
}
// Check the filter based switch
if (!apply_filters('amt_metadata_analysis_enable', true)) {
return $default_text;
}
//
// Collect data
//
$options = amt_get_options();
$post = amt_get_queried_object();
if (!isset($post->ID) || $post->ID <= 0) {
return $default_text;
}
// Content and stats
// Post content
$post_content = strtolower(amt_get_clean_post_content($options, $post));
$post_content_length = strlen($post_content);
//var_dump($post_content);
// Total words
if (function_exists('wordstats_words')) {
$post_word_count = wordstats_words($post_content);
// provided by the word-statistics-plugin by FD
} else {
$post_word_count = str_word_count($post_content);
}
// Total sentences
if (function_exists('wordstats_sentences')) {
$post_sentence_count = wordstats_sentences($post_content);
// provided by the word-statistics-plugin by FD
} else {
$post_sentence_count = preg_match_all('/[.!?\\r]/', $post_content, $dummy);
}
// Total syllables
// TODO: Find better function
$post_syllable_count = preg_match_all('/[aeiouy]/', $post_content, $dummy);
// Titles
// Original
$post_title = strtolower(strip_tags(get_the_title($post->ID)));
// Title HTML element
if ($options['enable_advanced_title_management'] == '1') {
// If Advanced Title management is enabled, use this directly:
$post_title_html_element = strtolower(amt_get_title_for_title_element($options, $post));
} else {
if (version_compare(get_bloginfo('version'), '4.4', '>=')) {
// Since WP 4.4
// - https://make.wordpress.org/core/2015/10/20/document-title-in-4-4/
//$post_title_html_element = strtolower( apply_filters('document_title_parts', array('title' => $post_title) ) );
//$post_title_html_element = wp_get_document_title();
$post_title_html_element = strtolower(get_wp_title_rss());
} else {
// Reverting back to the one argument version of the fitlering function.
//$post_title_html_element = strtolower( apply_filters('wp_title', $post_title) );
// Until testing is performed on old WP versions we just use post title
$post_title_html_element = $post_title;
}
}
//var_dump($post_title_html_element);
// Title in metadata
$post_title_metadata = strtolower(amt_get_title_for_metadata($options, $post));
//var_dump($post_title_metadata);
// URL
$post_url = str_replace(get_bloginfo('url'), '', amt_get_permalink_for_multipage($post));
//var_dump($post_url);
// Description
$description = '';
if (array_key_exists('basic:description', $metadata_block_head)) {
$description = strtolower(preg_replace('#^.*content="([^"]+)".*$#', '$1', $metadata_block_head['basic:description']));
}
//var_dump($description);
// Keywords
$keywords = array();
if (array_key_exists('basic:keywords', $metadata_block_head)) {
$keywords_content = strtolower(preg_replace('#^.*content="([^"]+)".*$#', '$1', $metadata_block_head['basic:keywords']));
$keywords = explode(',', str_replace(', ', ',', $keywords_content));
}
//var_dump($keywords);
// Keyword matching pattern
//$keyword_matching_pattern = '#(?:%s)#';
//$keyword_matching_pattern = '#(?:%s)[[:^alpha:]]#';
//$keyword_matching_pattern = '#(?:%s)[[:^alpha:]]?#';
$keyword_matching_pattern = '#(?:%s)(?:[[:^alpha:]]|$)#';
$keyword_matching_pattern = apply_filters('amt_metadata_analysis_keyword_matching_pattern', $keyword_matching_pattern);
// Whether to use topic keywords field or the keywords from the 'keywords' meta tag.
$use_keywords = false;
// First check for a field that contains topic keywords.
$topic_keywords_field_name = apply_filters('amt_metadata_analysis_topic_keywords_field', 'topic_keywords');
$topic_keywords_field_value = get_post_meta($post->ID, $topic_keywords_field_name, true);
if (!empty($topic_keywords_field_value)) {
$topic_keywords = explode(',', str_replace(', ', ',', $topic_keywords_field_value));
} else {
$topic_keywords = $keywords;
$use_keywords = true;
//var_dump($topic_keywords);
}
$BR = PHP_EOL;
if ($options['review_mode_omit_notices'] == '0') {
$output = $default_text . $BR . $BR;
//$output .= $BR . '<span class="">Text analysis</span>' . $BR;
} else {
$output = '';
}
if ($options['review_mode_omit_notices'] == '0') {
$output .= 'Metadata Overview' . $BR;
$output .= '=================' . $BR;
//$output .= 'This overview has been generated by the Add-Meta-Tags plugin for statistical and' . $BR;
//$output .= 'informational purposes only. Please do not modify or base your work upon this report.' . $BR . $BR;
$output .= 'NOTICE: Add-Meta-Tags does not provide SEO advice and does not rate your content.' . $BR;
$output .= 'This <a target="_blank" href="http://www.codetrax.org/projects/wp-add-meta-tags/wiki/Metadata_Overview">overview</a> has been generated for statistical and informational purposes only.' . $BR . $BR;
//$output .= '<a target="_blank" href="http://www.codetrax.org/projects/wp-add-meta-tags/wiki/FAQ#Is-Add-Meta-Tags-an-SEO-plugin">Read more</a> about the mentality upon which the development of this plugin has been based.' . $BR;
//$output .= 'Please use this statistical information to identify keyword overstuffing' . $BR;
//$output .= 'and stay away from following any patterns or being bound by the numbers.' . $BR . $BR;
}
if ($use_keywords) {
$output .= sprintf('This overview has been based on post keywords, because the Custom Field \'<em>%s</em>\' could not be found.', $topic_keywords_field_name) . $BR;
} else {
$output .= sprintf('This overview has been based on <em>topic keywords</em> retrieved from the Custom Field \'<em>%s</em>\'.', $topic_keywords_field_name) . $BR;
}
if ($options['review_mode_omit_notices'] == '0') {
$output .= 'Keyword Analysis' . $BR;
$output .= '----------------' . $BR;
} else {
$output .= $BR;
}
$output .= '<table class="amt-ht-table">';
$output .= '<tr> <th>Topic Keyword</th> <th>Content</th> <th>Description</th> <th>Keywords</th> <th>Post Title</th> <th>HTML title</th> <th>Metadata titles</th> <th>Post URL</th> </tr>';
foreach ($topic_keywords as $topic_keyword) {
$output .= sprintf('<tr> <td>%s</td>', $topic_keyword);
$is_into = array();
// Check content
$is_into['content'] = '';
$occurrences = preg_match_all(sprintf($keyword_matching_pattern, $topic_keyword), $post_content, $matches);
if ($occurrences) {
// Only for content
$topic_keyword_desnity = round($occurrences / $post_word_count * 100, 2);
$output .= sprintf(' <td>%d (%.2f%%)</td>', $occurrences, $topic_keyword_desnity);
} else {
$output .= '<td> </td>';
}
// Check description
$occurrences = preg_match_all(sprintf($keyword_matching_pattern, $topic_keyword), $description, $matches);
if ($occurrences) {
$output .= sprintf(' <td>%d</td>', $occurrences);
} else {
$output .= '<td> </td>';
}
// Check keywords
if ($use_keywords) {
$output .= '<td>N/A</td>';
$is_into['keywords'] = 'N/A';
} elseif (in_array($topic_keyword, $keywords)) {
// Always 1
$output .= '<td>1</td>';
} else {
$output .= '<td> </td>';
}
// Check original title
$occurrences = preg_match_all(sprintf($keyword_matching_pattern, $topic_keyword), $post_title, $matches);
if ($occurrences) {
$output .= sprintf(' <td>%d</td>', $occurrences);
} else {
$output .= '<td> </td>';
}
// Check title element
$occurrences = preg_match_all(sprintf($keyword_matching_pattern, $topic_keyword), $post_title_html_element, $matches);
if ($occurrences) {
$output .= sprintf(' <td>%d</td>', $occurrences);
} else {
$output .= '<td> </td>';
}
// Check metadata titles
$occurrences = preg_match_all(sprintf($keyword_matching_pattern, $topic_keyword), $post_title_metadata, $matches);
if ($occurrences) {
$output .= sprintf(' <td>%d</td>', $occurrences);
} else {
$output .= '<td> </td>';
}
// Check post URL
$occurrences = preg_match_all(sprintf($keyword_matching_pattern, $topic_keyword), $post_url, $matches);
if ($occurrences) {
$output .= sprintf(' <td>%d</td>', $occurrences);
} else {
$output .= '<td> </td>';
}
// Close row
$output .= ' </tr>' . $BR;
}
$output .= '</table>' . $BR;
// Topic Keywords Distribution Graph
if ($options['review_mode_omit_notices'] == '0') {
$output .= 'Topic Keywords Distribution Graph' . $BR;
$output .= '---------------------------------' . $BR;
$output .= 'The following text based graph shows how the <em>topic keywords</em> are distributed within your content.' . $BR;
$output .= 'You can use it to identify incidents of keyword overstuffing.' . $BR . $BR;
}
//$output .= $BR . $BR;
$total_bars = 39;
// zero based
$step = $post_content_length / $total_bars;
// Debug
//$output .= $BR . $post_content_length . ' ' . $step . $BR;
$max_weight = null;
$weights = array();
// Reset weights
for ($x = 0; $x <= $total_bars; $x++) {
$weights[$x] = 1;
}
foreach ($topic_keywords as $topic_keyword) {
// Use preg_match_all with PREG_OFFSET_CAPTURE -- http://php.net/manual/en/function.preg-match-all.php
$topic_keyword_occurrences = preg_match_all(sprintf($keyword_matching_pattern, $topic_keyword), $post_content, $matches, PREG_OFFSET_CAPTURE);
//var_dump($matches);
if (!empty($topic_keyword_occurrences)) {
foreach ($matches[0] as $match) {
$pos = $match[1];
$step_index = absint($pos / $step);
$weights[$step_index] = $weights[$step_index] + 1;
if ($weights[$step_index] > $max_weight) {
$max_weight = $weights[$step_index];
}
// Debug
//$output .= sprintf('kw: %s, pos: %s, step index: %s, step weight: %s', $topic_keyword, $pos, $step_index, $weights[$step_index]) . $BR;
}
}
}
//var_dump($weights);
for ($x = $max_weight - 1; $x >= 1; $x--) {
$line = '';
for ($y = 0; $y <= $total_bars; $y++) {
if ($weights[$y] > $x) {
$line .= '#';
} else {
$line .= ' ';
}
}
$output .= $line . $BR;
}
// Currently this text based ruler is used as base line.
$output .= str_repeat('---------+', ($total_bars + 1) / 10) . $BR;
if ($options['review_mode_omit_notices'] == '0') {
$output .= $BR . '<code>#</code>: indicates a single occurrence of a <em>topic keyword</em>.' . $BR;
} else {
$output .= $BR;
}
// Stats and scores by algos provided by the word-statistics-plugin by FD
if (function_exists('wordstats_words')) {
// Readability Tests
if ($options['review_mode_omit_notices'] == '0') {
$output .= $BR . 'Readability Scores and Text Statistics' . $BR;
$output .= '--------------------------------------' . $BR;
$output .= 'These readability scores and text statistics are based on algorithms provided by the <em>FD Word Statistics Plugin</em>.' . $BR . $BR;
}
if (function_exists('wordstats_words')) {
$output .= sprintf(' ● Total words: <strong>%d</strong>', wordstats_words($post_content)) . $BR;
}
if (function_exists('wordstats_sentences')) {
$output .= sprintf(' ● Total sentences: <strong>%d</strong>', wordstats_sentences($post_content)) . $BR;
}
if (function_exists('wordstats_flesch_kincaid')) {
$output .= sprintf(' ● Flesch-Kincaid US grade level: <strong>%.1f</strong> <em>(For instance, a score of 9.3 means suitable for a 9th grade student in the US, <a target="_blank" href="%s">read more</a>.)</em>', wordstats_flesch_kincaid($post_content), 'https://en.wikipedia.org/wiki/Flesch%E2%80%93Kincaid_readability_tests#Flesch.E2.80.93Kincaid_grade_level') . $BR;
}
if (function_exists('wordstats_flesch')) {
$output .= sprintf(' ● Flesch reading ease: <strong>%.1f%%</strong> <em>(avg 11 y.o. student: 90-100%%, 13-15 y.o. students: 60-70%%, university graduates: 0-30%%, <a target="_blank" href="%s">read more</a>.)</em>', wordstats_flesch($post_content), 'https://en.wikipedia.org/wiki/Flesch%E2%80%93Kincaid_readability_tests#Flesch_reading_ease') . $BR;
}
if (function_exists('wordstats_fog')) {
$output .= sprintf(' ● Gunning fog index: <strong>%.1f</strong> <em>(wide audience: < 12, near universal understanding: < 8, <a target="_blank" href="%s">read more</a>.)</em>', wordstats_fog($post_content), 'https://en.wikipedia.org/wiki/Gunning_fog_index') . $BR;
}
$output .= $BR;
} else {
if ($options['review_mode_omit_notices'] == '0') {
$output .= $BR . $BR . 'Note: There is experimental support for <em>FD Word Statistics Plugin</em>.';
$output .= $BR . 'If installed, you can get some readability scores and text statistics here.' . $BR . $BR;
}
}
return $output;
}
function amt_add_html_prefixes_and_namespaces($content)
{
$options = amt_get_options();
$prefixes = array();
if ($options['og_add_xml_namespaces'] == '1') {
$prefixes['og'] = 'http://ogp.me/ns#';
$prefixes['fb'] = 'https://www.facebook.com/2008/fbml';
}
// Dublin Core
// See: http://wiki.dublincore.org/index.php/Dublin_Core_Prefixes
if ($options['dc_add_xml_namespaces'] == '1') {
$prefixes['dcterms'] = 'http://purl.org/dc/terms/';
}
// Generate the value of the prefix attribute
$prefix_value = '';
foreach ($prefixes as $key => $val) {
$prefix_value .= sprintf(' %s: %s', $key, $val);
}
// return the final attributes
$output = '';
// Although not necessary in HTML 5, we also add the xmlns="http://www.w3.org/1999/xhtml"
// Comment out if duplicate
$output .= ' xmlns="http://www.w3.org/1999/xhtml"';
// Add our prefixes
$output .= ' prefix="' . trim($prefix_value) . '"';
return $output . ' ' . $content;
}