File: /data/www/welovefamily.at/welovefamily.at/htdocs/wp-content/plugins/content-cards/content-cards.php
<?php
/*
Plugin Name: Content Cards
Description: Embed any link from the web easily as a beautiful Content Card
Version: 0.9.7
Author: Arūnas Liuiza
Author URI: http://arunas.co
License: GPL2
Text Domain: content-cards
*/
add_action( 'plugins_loaded', array( 'Content_Cards', 'init' ) );
register_uninstall_hook( __FILE__, array( 'Content_Cards', 'uninstall' ) );
register_deactivation_hook( __FILE__, array( 'Content_Cards', 'deactivate' ) );
/**
* Main plugin class
*
* Class Content_Cards
*/
class Content_Cards {
public static $options = array(
'patterns' => "wptavern.com\r\nwordpress.org",
'skin' => 'default',
'target' => false,
'update_interval' => DAY_IN_SECONDS,
'cleanup_interval' => DAY_IN_SECONDS,
'default_image' => '',
'cache_images' => false,
'word_limit' => 55,
'enable_admin_page' => true
);
public static $settings = false;
private static $stylesheet = '';
public static $plugin_path;
public static $temp_data = array();
public static function init() {
self::$plugin_path = plugin_dir_path( __FILE__ );
// tinyOptions v 0.4.0
self::$options = wp_parse_args( get_option( 'content-cards_options' ), self::$options );
self::$options = apply_filters('content_cards_options', self::$options );
add_action( 'plugins_loaded', array( 'Content_Cards', 'init_options' ), 9999 - 0040 );
if ( isset( self::$options['theme'] ) ) {
self::$options['skin'] = self::$options['theme'];
unset( self::$options['theme'] );
}
self::$stylesheet = self::get_stylesheet();
add_action( 'wp_enqueue_scripts', array( 'Content_Cards', 'styles' ) );
add_action( 'amp_post_template_css', array( 'Content_Cards', 'amp_styles') );
add_action( 'admin_enqueue_scripts',array( 'Content_Cards', 'admin_scripts' ) );
add_action( 'admin_init', array( 'Content_Cards', 'admin_init' ) );
// if(self::$options['enable_admin_page']) {
// add_action( 'admin_menu', array( 'Content_Cards', 'admin_menu' ) );
// }
add_action( 'content_cards_update', array( 'Content_Cards', 'update_data' ), 10, 3 );
add_action( 'content_cards_retry', array( 'Content_Cards', 'retry_data' ), 10, 4 );
add_filter( 'ajax_query_attachments_args', array( 'Content_Cards', 'filter_cached_images' ), 10, 1 );
add_action( 'pre_get_posts', array( 'Content_Cards', 'filter_cached_images_query' ), 10, 1 );
add_filter( 'wp_count_attachments', array( 'Content_Cards', 'filter_cached_images_count' ), 10, 2 );
add_filter( 'query', array( 'Content_Cards', 'filter_cached_images_orphans' ), 10, 1 );
if ( false === wp_next_scheduled( 'content_cards_schedule_cleanups' ) ) {
wp_schedule_event( time() , 'daily', 'content_cards_schedule_cleanups' );
}
add_action( 'content_cards_schedule_cleanups', array( 'Content_Cards', 'schedule_cleanups' ) );
add_action( 'content_cards_link_cleanup', array( 'Content_Cards', 'link_cleanup' ), 10, 1 );
add_action( 'content_cards_image_cleanup', array( 'Content_Cards', 'image_cleanup' ), 10, 1 );
add_shortcode( 'contentcard', array( 'Content_Cards', 'shortcode' ) );
add_shortcode( 'opengraph', array( 'Content_Cards', 'shortcode' ) );
add_shortcode( 'contentcards', array( 'Content_Cards', 'shortcode' ) );
$patterns = self::$options['patterns'];
$patterns = explode( "\r\n", $patterns );
if ( is_array( $patterns ) ) {
foreach ( $patterns as $id => $domain ) {
$domain = str_replace( '.', '\.', $domain );
$regex = "#https?://(www\.)?{$domain}/?(.*?)#i";
wp_embed_register_handler( $id, $regex, array( 'Content_Cards', 'oembed' ) );
}
}
add_filter( 'mce_external_plugins', array( 'Content_Cards', 'editor_button_js' ) );
add_filter( 'mce_buttons', array( 'Content_Cards', 'editor_button' ) );
// shortcode preview.
add_action( 'admin_init', array( 'Content_Cards', 'init_preview' ), 20 );
add_action( 'wp_ajax_content_cards_shortcode', array( 'Content_Cards', 'ajax_shortcode' ), 20 );
}
public static function uninstall() {
global $wpdb;
self::_delete_cached();
$q = "DELETE FROM `{$wpdb->postmeta}` WHERE `meta_key` LIKE 'content_cards_%'";
$wpdb->query( $q );
delete_option( 'content-cards_options' );
wp_cache_flush();
}
public static function deactivate() {
self::_delete_cached();
}
/**
* Enqueues TinyMCE button JS
*
* @param $plugin_array
* @return mixed
*/
public static function editor_button_js( $plugin_array ) {
$plugin_array['contentcards'] = plugins_url( 'content-cards-button.js', __FILE__ );
return $plugin_array;
}
/**
* Adds the CC button to TinyMCE
*
* @param $buttons
* @return mixed
*/
public static function editor_button( $buttons ) {
array_push( $buttons, 'contentcards_shortcode' );
return $buttons;
}
/**
* Generic template helper that allows overriding via
* theme.
*
* @param $url
* @param string $extension
* @param string $type
* @param string $theme
* @param string $method
* @return mixed|string|void
*/
private static function _get_file( $url, $extension='php', $type = 'website', $theme ="default", $method='dir' ) {
$plugin_path = plugin_dir_path( __FILE__ );
$plugin_uri = 'dir' === $method ? $plugin_path : plugins_url( '/', __FILE__ );
$theme_dir = get_template_directory() . '/';
$theme_uri = 'dir' === $method ? $theme_dir : ( get_template_directory_uri() . '/' );
$child_theme_dir = get_stylesheet_directory() . '/';
$child_theme_uri = 'dir' === $method ? $child_theme_dir : ( get_stylesheet_directory_uri() . '/' );
$template = "{$plugin_uri}skins/{$theme}/content-cards.{$extension}";
if ( file_exists( "{$theme_dir}content-cards.{$extension}" ) ) {
$template = "{$theme_uri}content-cards.{$extension}";
}
if ( file_exists( "{$child_theme_dir}content-cards.{$extension}" ) ) {
$template = "{$child_theme_uri}content-cards.{$extension}";
}
if ( file_exists( "{$plugin_path}skins/{$theme}/content-cards-{$type}.{$extension}" ) ) {
$template = "{$plugin_uri}skins/{$theme}/content-cards-{$type}.{$extension}";
}
if ( file_exists( "{$theme_dir}content-cards-{$type}.{$extension}" ) ) {
$template = "{$theme_uri}content-cards-{$type}.{$extension}";
}
if ( file_exists( "{$child_theme_dir}content-cards-{$type}.{$extension}" ) ) {
$template = "{$child_theme_uri}content-cards-{$type}.{$extension}";
}
$template = apply_filters( 'content_cards_file', $template, $url, $extension );
return $template;
}
/**
* Gets the template for the Content Card
*
* @param $url
* @param string $type
* @return mixed|string|void
*/
private static function get_template( $url, $type = 'website', $skin = false ) {
if ( false === $skin ) {
$skin = self::$options['skin'];
}
$template = self::_get_file( $url, 'php', $type, $skin );
$template = apply_filters( 'content_cards_template', $template, $url );
return $template;
}
/**
* Gets the stylesheet for the Content Card
*
* @return mixed|string|void
*/
private static function get_stylesheet( ) {
$template = self::_get_file( false, 'css', '', self::$options['skin'], 'uri' );
$template = apply_filters( 'content_cards_stylesheet', $template );
return $template;
}
/**
* Gets the placeholder image for the Content Card
*
* @return mixed|string|void
*/
private static function get_placeholder( ) {
$template = self::_get_file( false, 'png', 'placeholder', self::$options['skin'], 'uri' );
$template = apply_filters( 'content_cards_placeholder', $template );
return $template;
}
/**
* Gets the loading image for the Content Card
*
* @return mixed|string|void
*/
private static function get_loading_image( ) {
$template = self::_get_file( false, 'gif', 'loading', self::$options['skin'], 'uri' );
$template = apply_filters( 'content_cards_loading_image', $template );
return $template;
}
/**
* Gets the editor CSS image for the Content Card
*
* @return mixed|string|void
*/
private static function get_editor_stylesheet( ) {
$template = self::_get_file( false, 'css', 'editor', self::$options['skin'], 'uri' );
$template = apply_filters( 'content_cards_editor_stylesheet', $template );
return $template;
}
/**
* Adds admin stylesheet
*/
public static function admin_init() {
if ( self::$stylesheet ) {
add_editor_style( self::$stylesheet );
}
/* Stylesheet for loading indicator */
add_editor_style( self::get_editor_stylesheet() );
}
/**
* Creates admin menu
*/
public static function init_options() {
// require_once ( self::$plugin_path . 'includes/options.php' );
self::$settings = array(
'page' => array(
'title' => __( 'Content Cards Settings', 'content-cards' ),
'menu_title' => __( 'Content Cards', 'content-cards' ),
'slug' => 'content-cards-settings',
'option' => 'content-cards_options',
// optional
// 'description' => __( 'Some general information about the plugin', 'content-cards' ),
),
'sections' => array(
"general" => array(
'title' => '',
'fields' => array(
'patterns' => array(
'title' => __('oEmbed White List','content-cards'),
'callback' => 'textarea',
'attributes' => array (
'rows' => 10,
'cols' => 60,
),
'description' => __( 'A list of domain names, i.e. <code>domain.com</code>, one per line.', 'content-cards' ),
),
'skin' => array(
'title' => __('Snippet Skin','content-cards'),
'callback' => 'listfield',
'list' => self::get_skins(),
'description' => __( 'Can be overwritten by theme.', 'content-cards' ),
),
'target' => array(
'title' => __('Link Target','content-cards'),
'label' => __('Open links in new tab?','content-cards'),
'callback' => 'checkbox',
),
'update_interval' => array(
'title' => __('Update Interval','content-cards'),
'callback' => 'listfield',
'list' => array(
HOUR_IN_SECONDS => __( 'Hourly', 'content-cards' ),
2 * HOUR_IN_SECONDS => __( 'Every 2 Hours', 'content-cards' ),
6 * HOUR_IN_SECONDS => __( 'Every 6 Hours', 'content-cards' ),
DAY_IN_SECONDS / 2 => __( 'Twice Daily', 'content-cards' ),
DAY_IN_SECONDS => __( 'Daily', 'content-cards' ),
),
'description' => __( 'How often should Content Cards check for changes in OpenGraph data?', 'content-cards' ),
),
'default_image' => array(
'title' => __( 'Placeholder Image', 'content-cards' ),
'callback' => 'upload',
'description' => __( 'Placeholder image for links that do not have OpenGraph data. (Leave empty to use default image set by skin.)', 'content-cards' ),
'button_attributes' => array(
'value' => __( 'Upload Image', 'content-cards' ),
'data-uploader_button_text' => __( 'Upload Image', 'content-cards' ),
'data-uploader_title' => __( 'Select File', 'content-cards' ),
),
),
'cache_images' => array(
'title' => __( 'Cache Images', 'content-cards' ),
'label' => __( 'Should Content Cards cache images to Media Library?', 'content-cards' ),
'callback' => 'checkbox',
),
'word_limit' => array(
'title' => __( 'Word Limit', 'content-cards' ),
'description' => __( 'Limit maximum number of words in description.', 'content-cards' ),
'attributes' => array (
'type' => 'number',
'min' => 0,
),
),
),
),
),
'l10n' => array(
'no_access' => __( 'You do not have sufficient permissions to access this page.', 'content-cards' ),
'save_changes' => esc_attr( 'Save Changes', 'content-cards' ),
'upload' => __( 'Upload File', 'content-cards' ),
'upload_button' => __( 'Upload', 'content-cards' ),
),
);
require_once( self::$plugin_path . 'tiny/tiny.options.php' );
self::$settings = new tinyOptions( self::$settings, __CLASS__ );
}
/**
* Builds a list of skins from the skins/ folder.
*
* @return array
*/
private static function get_skins() {
$dir = plugin_dir_path( __FILE__ );
$dir .= 'skins/*';
$list = glob($dir);
$skins = array();
foreach ( $list as $skin ) {
$key = basename($skin);
$data = self::get_skin_data( $skin );
if ( !$data['name'] ) {
continue;
}
$name = $data['name'];
// if ( $data['version'] ) {
// $name .= " {$data['version']}";
// }
// if ( $data['author'] ) {
// $name .= " by {$data['author']}";
// }
$skins[$key] = $name;
}
//Sort skins in alphabetical order
asort($skins);
return $skins;
}
/**
* Parses skin info data
*
* @param $dir
* @return array|bool
*/
private static function get_skin_data( $dir ) {
$stylesheet = $dir."/content-cards.css";
if ( !file_exists( $stylesheet ) ) {
return false;
}
$default = array(
'name' => 'Skin Name',
'version' => 'Version',
'author' => 'Author',
);
$skin_data = get_file_data( $stylesheet, $default, 'cc_skin' );
return $skin_data;
}
/**
* Enqueues frontend styles
*/
public static function styles() {
if ( self::$stylesheet ) {
wp_register_style( 'content-cards', self::$stylesheet );
wp_enqueue_style( 'content-cards' );
}
}
/**
* Loads styles for AMP
*/
public static function amp_styles() {
$stylesheet = self::_get_file( false, 'css', false, self::$options['skin'] );
$amp_stylesheet = self::_get_file( false, 'css', 'amp', self::$options['skin'] );
if ( $stylesheet ) {
echo file_get_contents( $stylesheet );
}
if ( $stylesheet !== $amp_stylesheet ) {
echo file_get_contents( $amp_stylesheet );
}
}
/**
* oEmbed handler for domains in
* "oEmbed White List"
*
* @param $matches
* @param $attr
* @param $url
* @param $rawattr
* @return mixed|void
*/
public static function oembed( $matches, $attr, $url, $rawattr ) {
$embed = self::build( $url );
// $embed = wp_replace_in_html_tags( $embed, array( "\n" => '<!-- wp-line-break -->' ) );
return apply_filters( 'embed_content_cards', $embed, $matches, $attr, $url, $rawattr );
}
/**
* Registers shortcode
*
* @param array $args shortcode attributes.
* @param string $content shortcode content.
* @return string
*/
public static function shortcode( $args, $content = '' ) {
$result = '';
if ( ! isset( $args['url'] ) ) {
return $result;
}
$result = self::build( $args['url'], $args, ! is_admin() );
return $result;
}
/**
* Builds the data and output
* for displaying the Content Card
*
* @param string $url embed url.
* @param array $args attributes.
* @return string
*/
public static function build( $url, $args = array(), $fallback = false ) {
$default = array(
'url' => $url,
'target' => self::$options['target'],
'word_limit' => self::$options['word_limit'],
'class' => '',
'skin' => self::$options['skin'],
);
$args = wp_parse_args( $args, $default );
$args = apply_filters( 'content_cards_args', $args, $url );
$data = self::get_data( $url );
if ( ! $data ) {
$result = '';
if ( $fallback ) {
$target = $args['target'] ? ' target="_blank"' : '';
$domain = wp_parse_url( $url, PHP_URL_HOST );
$result = wpautop( "<a href=\"{$url}\"{$target}>{$domain}</a>" );
}
return $result;
}
$data['description'] = wpautop( isset( $data['description'] ) ? $data['description'] : '' );
$data['url'] = $url;
$data['target'] = $args['target'];
$data['css_class'] = $args['class'];
$type = isset( $data['type'] ) ? $data['type'] : 'website';
$data = apply_filters( 'content_cards_data', $data, $url );
self::$temp_data = $data;
$template = self::get_template( $url, $type, $args['skin'] );
ob_start();
require( $template );
$result = ob_get_contents();
ob_end_clean();
return $result;
}
/**
* Retrieves the OpenGraph info
* from postmeta storage
*
* @param $url
* @param $post_id
* @return array|mixed
*/
private static function get_data( $url, $post_id = false ) {
if ( !$post_id ) {
$post_id = get_the_id();
}
$url_md5 = md5( $url );
$result = get_post_meta( $post_id, "content_cards_{$url_md5}", true );
if ( ! $result ) {
$args = array( $post_id, $url, $url_md5, MINUTE_IN_SECONDS );
if ( false === wp_next_scheduled( 'content_cards_retry', $args ) ) {
$result = self::get_remote_data( $url, $post_id );
if ( $result ) {
$result['url'] = $url;
$meta_id = update_post_meta( $post_id, "content_cards_{$url_md5}", $result );
} else {
wp_schedule_single_event( time() + MINUTE_IN_SECONDS, 'content_cards_retry', $args );
}
}
}
if ( $result && time() - $result['cc_last_updated'] > self::$options['update_interval'] ) {
$args = array(
$post_id,
$url,
$url_md5,
);
if ( false === wp_next_scheduled( 'content_cards_update', $args ) ) {
wp_schedule_single_event( time() + MINUTE_IN_SECONDS, 'content_cards_update', $args );
}
}
if ( $result && !isset( $result['image'] ) ) {
$result['image'] = self::$options['default_image'] ? self::$options['default_image'] : self::get_placeholder();
}
$args = array(
$post_id,
);
if ( false === wp_next_scheduled( 'content_cards_link_cleanup', $args ) ) {
wp_schedule_single_event( time() + self::$options['cleanup_interval'] - HOUR_IN_SECONDS + mt_rand(0, HOUR_IN_SECONDS), 'content_cards_link_cleanup', $args );
}
return $result;
}
/**
* Updates OpenGraph info
* from remote site
* via wp_cron task
*
* @param $post_id
* @param $url
* @param $url_md5
* @return null
*/
public static function update_data( $post_id, $url, $url_md5 ) {
// remove link metadata if link is not in post_content anymore
$content = get_post_field('post_content', $post_id);
if ( false === strpos( $content, $url ) ) {
delete_post_meta( $post_id, 'content_cards_'.$url_md5 );
return false;
}
// update link metadata from remote source
$result = get_post_meta( $post_id, 'content_cards_'.$url_md5, true );
if ( $result && time() - $result['cc_last_updated'] > self::$options['update_interval'] ) {
$new_result = self::get_remote_data( $url, $post_id );
if ( $new_result ) {
$new_result['url'] = $url;
$result = $new_result;
} else {
$result['cc_last_updated'] = time();
}
$meta_id = update_post_meta( $post_id, 'content_cards_'.$url_md5, $result );
}
}
/**
* Retries to get OpenGraph info
* from remote site
* via wp_cron task
*
* @param $post_id
* @param $url
* @param $url_md5
* @return null
*/
public static function retry_data( $post_id, $url, $url_md5, $interval ) {
// remove link metadata if link is not in post_content anymore
$content = get_post_field('post_content', $post_id);
if ( false === strpos( $content, $url ) ) {
delete_post_meta( $post_id, 'content_cards_'.$url_md5 );
return false;
}
// update link metadata from remote source
$result = get_post_meta( $post_id, 'content_cards_'.$url_md5, true );
if ( $result ) {
$new_result = self::get_remote_data( $url, $post_id );
if ( $new_result ) {
$new_result['url'] = $url;
$result = $new_result;
}
$result['cc_last_updated'] = time();
$meta_id = update_post_meta( $post_id, 'content_cards_'.$url_md5, $result );
} else {
$args = array( $post_id, $url, $url_md5, $interval * 2 );
wp_schedule_single_event( time() + $interval, 'content_cards_retry', $args );
}
}
/**
* Retrieves the OpenGraph info
* from remote site
*
* @param $url
* @return array|mixed
*/
private static function get_remote_data( $url, $post_id ) {
if ( ! class_exists( 'tiny_OpenGraph' ) ) {
require_once( self::$plugin_path . 'includes/opengraph.php' );
}
$data = wp_remote_retrieve_body( wp_remote_get( $url ) );
$data = mb_convert_encoding( $data, 'HTML-ENTITIES', 'auto,ISO-8859-1');
$result = array();
if ( $data ) {
$graph = tiny_OpenGraph::parse( $data );
if ( $graph ) {
foreach ( $graph as $key => $value ) {
$result[ $key ] = $value;
}
}
}
if ( $data && ! $result ) {
$result = self::get_remote_data_fallback( $data );
}
if ( $result ) {
if ( !isset( $result['site_name'] ) ) {
$result['site_name'] = wp_parse_url( $url, PHP_URL_HOST );
}
$result['favicon'] = self::get_remote_favicon( $data, $url );
if ( isset($result['image']) && $result['image'] ) {
$result['image'] = self::force_absolute_url( $result['image'], $url );
if ( isset( $result['image_id'] ) && $result['image_id'] ) {
$image_data = get_post_meta( $result['image_id'], 'content_cards_cached', true );
if ( $image_data['original_url'] !== $result['image'] ) {
wp_delete_attachment( $result['image_id'], true );
unset( $result['image_id'] );
}
}
if ( self::$options['cache_images'] && ( !isset( $result['image_id'] ) || !$result['image_id'] ) ) {
$image_id = self::cache_image( $result['image'], $post_id );
if ( $image_id ) {
$result['image_id'] = $image_id;
}
}
}
$result['cc_last_updated'] = time();
if ( isset( $result['description'] ) && self::$options['word_limit'] ) {
$result['description'] = wp_trim_words( $result['description'], self::$options['word_limit'] );
}
}
foreach ( $result as $key => $value ) {
$result[ $key ] = strip_tags( $value );
}
return $result;
}
public static function schedule_cleanups() {
global $wpdb;
$q = "SELECT DISTINCT `post_id` FROM {$wpdb->postmeta} WHERE meta_key LIKE 'content_cards_%' AND meta_key != 'content_cards_cached'";
$posts = $wpdb->get_col( $q, 0 );
foreach ($posts as $post_id) {
$args = array(
$post_id,
);
if ( false === wp_next_scheduled( 'content_cards_link_cleanup', $args ) ) {
wp_schedule_single_event( time() + self::$options['cleanup_interval'] - HOUR_IN_SECONDS + mt_rand(0, HOUR_IN_SECONDS), 'content_cards_link_cleanup', $args );
}
}
$q = "SELECT DISTINCT `post_id` FROM {$wpdb->postmeta} WHERE meta_key = 'content_cards_cached'";
$images = $wpdb->get_col( $q, 0 );
foreach ($images as $post_id) {
$args = array(
$post_id,
);
if ( false === wp_next_scheduled( 'content_cards_image_cleanup', $args ) ) {
wp_schedule_single_event( time() + self::$options['cleanup_interval'] - HOUR_IN_SECONDS + mt_rand(0, HOUR_IN_SECONDS), 'content_cards_image_cleanup', $args );
}
}
}
public static function link_cleanup( $post_id ) {
$meta = get_post_meta( $post_id );
$content = get_post_field('post_content', $post_id);
foreach ( $meta as $key => $value ) {
if ( 0 === strpos( $key, 'content_cards_') ) {
$value = unserialize($value[0]);
if ( false === strpos( $content, $value['url'] ) ) {
delete_post_meta( $post_id, $key );
if ( $value['image_id'] ) {
wp_delete_attachment( $value['image_id'], true );
}
}
}
}
}
public static function image_cleanup( $image_id ) {
$image_meta = get_post_meta( $image_id, 'content_cards_cached', true );
$post_id = $image_meta['post_id'];
$meta = get_post_meta( $post_id );
$found = false;
foreach ( $meta as $key => $value ) {
if ( 0 === strpos( $key, 'content_cards_') ) {
$value = unserialize($value[0]);
if ( isset( $value['image_id'] ) && $image_id == $value['image_id'] ) {
$found = $key;
break;
}
}
}
if ( !$found ) {
wp_delete_attachment( $image_id, true );
}
}
public static function filter_cached_images( $args ) {
if ( !isset($args['meta_query'])) {
$args['meta_query'] = array();
}
$args['meta_query'][] = array(
'key' => 'content_cards_cached',
'compare' => 'NOT EXISTS',
);
return $args;
}
public static function filter_cached_images_query( $query ) {
if ( !is_admin() ) {
return $query;
}
if (defined('DOING_AJAX') && DOING_AJAX) {
return $query;
}
if ( !function_exists('get_current_screen') || 'upload' !== get_current_screen()->base ) {
return $query;
}
$q = $query->get( 'meta_query' );
if ( ! is_array( $q ) ) {
$q = array();
}
$q[] = array(
'key' => 'content_cards_cached',
'compare' => 'NOT EXISTS',
);
$query->set( 'meta_query', $q );
return $query;
}
public static function filter_cached_images_count( $count ) {
$cached = 'image/cached';
$count->$cached = self::_count_cached() * -1;
return $count;
}
public static function filter_cached_images_orphans( $query ) {
global $wpdb;
if ( "SELECT COUNT( * ) FROM {$wpdb->posts} WHERE post_type = 'attachment' AND post_status != 'trash' AND post_parent < 1" == $query ) {
$count_cached = self::_count_cached();
$query = "SELECT COUNT( * ) - {$count_cached} FROM {$wpdb->posts} WHERE post_type = 'attachment' AND post_status != 'trash' AND post_parent < 1";
}
return $query;
}
private static function _count_cached() {
global $wpdb;
$q = "SELECT COUNT( * ) FROM {$wpdb->postmeta} WHERE meta_key='content_cards_cached'";
$q = $wpdb->get_var($q);
return $q;
}
private static function _delete_cached() {
global $wpdb;
$q = "SELECT `post_id` FROM {$wpdb->postmeta} WHERE meta_key='content_cards_cached'";
$q = $wpdb->get_col($q);
foreach ($q as $attachment_id) {
wp_delete_attachment( $attachment_id, true );
}
}
private static function cache_image( $image_url, $post_id ) {
require_once(ABSPATH . "wp-admin" . '/includes/image.php');
require_once(ABSPATH . "wp-admin" . '/includes/file.php');
require_once(ABSPATH . "wp-admin" . '/includes/media.php');
$temp_file = download_url( $image_url );
if ( !is_wp_error( $temp_file ) ) {
$allowed_mime_types = array(
'image/jpeg',
'image/gif',
'image/png',
'image/bmp',
'image/tiff',
'image/x-icon',
);
$mime = self::_get_mime_type( $temp_file);
preg_match('/[^\?]+\.(jpg|jpe|jpeg|gif|png|ico)/i', $image_url, $matches);
if ( in_array( $mime, $allowed_mime_types ) ) {
$filename = basename( $matches[0] );
$filename = urldecode( $filename );
$filename = explode( '.', $filename );
foreach ($filename as $key => $value) {
$filename[ $key ] = sanitize_title( $value );
}
$filename = implode( '.', $filename );
$file = array(
'name' => $filename,
'type' => $mime,
'tmp_name' => $temp_file,
'error' => 0,
'size' => filesize($temp_file),
);
$overrides = array(
'test_form' => false,
'test_size' => true,
'test_upload' => true,
);
$a = wp_check_filetype_and_ext($file['tmp_name'],$file['name'],false);
$movefile = wp_handle_sideload( $file, $overrides );
if ( $movefile && !isset( $movefile['error'] ) ) {
$wp_upload_dir = wp_upload_dir();
$attachment = array(
'guid' => $wp_upload_dir['url'] . '/' . basename( $movefile['file'] ),
'post_mime_type' => $movefile['type'],
'post_title' => preg_replace( '/\.[^.]+$/', '', basename( $movefile['file'] ) ),
'post_content' => '',
'post_status' => 'inherit'
);
$attach_id = wp_insert_attachment( $attachment, $movefile['file'] );
require_once( ABSPATH . 'wp-admin/includes/image.php' );
$attach_data = wp_generate_attachment_metadata( $attach_id, $movefile['file'] );
wp_update_attachment_metadata( $attach_id, $attach_data );
$cached = array(
'post_id' => $post_id,
'original_url' => $image_url,
);
add_post_meta( $attach_id, 'content_cards_cached', $cached );
return $attach_id;
}
}
}
return false;
}
private static function _get_mime_type($file) {
$mtype = false;
if (function_exists('finfo_open')) {
$finfo = finfo_open(FILEINFO_MIME_TYPE);
$mtype = finfo_file($finfo, $file);
finfo_close($finfo);
} elseif (function_exists('mime_content_type')) {
$mtype = mime_content_type($file);
}
return $mtype;
}
private static function get_remote_favicon( $html, $url ) {
$old_libxml_error = libxml_use_internal_errors(true);
$dom = new DOMDocument();
$dom->loadHTML( $html );
libxml_use_internal_errors($old_libxml_error);
$links = $dom->getElementsByTagName('link');
$favicon = false;
for( $i=0; $i < $links->length; $i++ ) {
$link = $links->item( $i );
if ( in_array( $link->getAttribute('rel'), array( 'icon', "Shortcut Icon", "shortcut icon") ) ) {
$favicon = $link->getAttribute('href');
break;
}
}
if ( !$favicon ) {
$url_parts = wp_parse_url( $url );
$temp = "{$url_parts['scheme']}://{$url_parts['host']}/favicon.ico";
$response = wp_remote_head($temp);
if ( isset($response['headers']['content-type']) && 0 === strpos( $response['headers']['content-type'], 'image/' ) ) {
$favicon = $temp;
}
}
$favicon = self::force_absolute_url( $favicon, $url );
return $favicon;
}
private static function force_absolute_url( $url, $site_url ) {
if ( $url && !filter_var( $url, FILTER_VALIDATE_URL ) && !filter_var( 'http:'.$url, FILTER_VALIDATE_URL ) ) {
$url_parts = wp_parse_url($site_url);
$site_url = $url_parts['scheme'] . "://" . $url_parts['host'] . "/";
if ( 0 !== strpos( $url, '/' ) ) {
$url = '/'.$url;
}
$url = untrailingslashit( $site_url ) . $url;
}
return $url;
}
private static function get_remote_data_fallback( $data ) {
$result = array();
$title = false;
$description = false;
$old_libxml_error = libxml_use_internal_errors(true);
$doc = new DOMDocument;
$doc->loadHTML( $data );
libxml_use_internal_errors($old_libxml_error);
$title_dom = $doc->getElementsByTagName( 'title' );
if( $title_dom->item(0) ) {
$title = $title_dom->item(0)->textContent;
};
$xpath = new DOMXPath($doc);
$description_dom = $xpath->query('//meta[@name="description"]/@content');
if($description_dom->item(0)) {
$description = $description_dom->item(0)->value;
}
if ( $title && $description ) {
$result = array(
'title' => $title,
'description' => $description
);
}
return $result;
}
public static function init_preview() {
add_action( 'print_media_templates', array( 'Content_Cards', 'print_media_templates' ) );
add_action( 'admin_enqueue_scripts', array( 'Content_Cards', 'scripts_preview' ), 100 );
}
public static function ajax_shortcode() {
// Don't sanitize shortcodes — can contain HTML kses doesn't allow (e.g. sourcecode shortcode).
if ( ! empty( $_POST['shortcode'] ) ) {
$shortcode = stripslashes( $_POST['shortcode'] );
} else {
$shortcode = null;
}
if ( isset( $_POST['post_id'] ) ) {
$post_id = intval( $_POST['post_id'] );
} else {
$post_id = null;
}
if ( ! empty( $post_id ) ) {
global $post;
$post = get_post( $post_id );
setup_postdata( $post );
}
wp_send_json_success( do_shortcode( $shortcode ) );
}
/**
* Outputs the view inside the wordpress editor.
*/
public static function print_media_templates() {
if ( ! isset( get_current_screen()->id ) || get_current_screen()->base != 'post' )
return;
?>
<script type="text/html" id="tmpl-editor-contentcards">
<div class="content_cards_preview">{{ data.content }}</div>
</script>
<?php
}
public static function scripts_preview() {
if ( ! isset( get_current_screen()->id ) || get_current_screen()->base != 'post' ) {
return;
}
wp_enqueue_script( 'content-cards', plugins_url( 'content-cards.js', __FILE__ ), array('shortcode'), false, true );
$data = array(
'loading_image' => self::get_loading_image(),
'icon' => plugins_url( 'content-cards-button.png', __FILE__ ),
'texts' => array(
'main_label' => __( 'Main', 'content-cards' ),
'advanced_label' => __( 'Advanced', 'content-cards' ),
'link_label' => __( 'Content Card URI', 'content-cards' ),
'target_label' => __( 'Target', 'content-cards' ),
'target_text' => __( 'Open Link in New Tab', 'content-cards' ),
'class_label' => __( 'CSS classes', 'content-cards' ),
'wordlimit_label' => __( 'Word Limit', 'content-cards' ),
'link_dialog_title' => __( 'Edit Content Card', 'content-cards' ),
'add_dialog_title' => __( 'Add Content Card', 'content-cards' ),
'loading_image_heading' => __( 'This Content Card is still processing', 'content-cards' ),
'loading_image_text' => __( 'If this message persists, make sure the link you are trying to embed is reachable. While your content card hasn\'t been processed, visitors will see a normal link.' , 'content-cards' ),
)
);
wp_localize_script( 'content-cards', 'contentcards', $data );
}
public static function admin_scripts() {
wp_register_script( 'content-cards-upload', plugins_url( 'content-cards-upload.js', __FILE__ ) , array('jquery','media-upload','thickbox') );
if ( 'settings_page_content-cards-settings' == get_current_screen() -> id ) {
wp_enqueue_media();
wp_enqueue_script( 'content-cards-upload' );
}
}
}
/**
* Returns Content Card data, template function.
*
* @param $key
* @param $sanitize
* @return mixed
*/
function get_cc_data( $key, $sanitize = false ) {
$result = isset(Content_Cards::$temp_data[$key]) ? Content_Cards::$temp_data[$key] : '';
if (is_callable($sanitize)) {
$result = call_user_func( $sanitize, $result );
}
return $result;
}
/**
* Prints Content Card data, template function.
*
* @param $key
*/
function the_cc_data( $key, $sanitize = false ) {
echo get_cc_data( $key, $sanitize );
}
/**
* Generates the target="" portion of the Content Card link based
* on user settings.
*/
function the_cc_target() {
echo Content_Cards::$temp_data['target'] ? ' target="_blank"' : '';
}
/**
* Add in filterable CSS classes
*
* @param array $classes classes to print.
*/
function the_cc_css_classes( $classes = array( 'content_cards_card' ) ) {
$temp_class = Content_Cards::$temp_data['css_class'];
$temp_class = explode( ' ', $temp_class );
if ( ! is_array( $classes ) ) {
$classes = explode( ' ', $classes );
}
$domain = wp_parse_url( Content_Cards::$temp_data['url'], PHP_URL_HOST );
$domain = sanitize_title( $domain );
$classes[] = "content_cards_domain_{$domain}";
$classes = array_merge( $temp_class, $classes );
$classes = apply_filters( 'content_cards_css_classes', $classes );
$classes = implode( ' ', $classes );
echo esc_attr( $classes );
}
/**
* Returns cached image url or original image url, if cache is not available
*
* @param $size - WordPress image size
* @param $sanitize
*/
function get_cc_image( $size = 'thumbnail', $sanitize = false ) {
if ( isset(Content_Cards::$temp_data['image_id']) && Content_Cards::$temp_data['image_id'] ) {
$result = wp_get_attachment_image_src( Content_Cards::$temp_data['image_id'], $size );
$result = $result[0];
if (is_callable($sanitize)) {
$result = call_user_func( $sanitize, $result );
}
return $result;
} else if ( isset(Content_Cards::$temp_data['image']) && Content_Cards::$temp_data['image'] ) {
return get_cc_data( 'image', $sanitize );
} else {
return false;
}
}
/**
* Prints cached image original image, if cache is not available
*
* @param $size - WordPress image size
* @param $args
*/
function the_cc_image( $size = 'thumbnail', $args = array() ) {
$defaults = array(
'alt' => get_cc_data( 'title' ),
);
$args = wp_parse_args( $args, $defaults );
$attributes = array();
foreach ($args as $key => $value) {
$value = esc_attr( $value );
$attributes[] = "{$key}=\"{$value}\"";
}
$attributes = implode( ' ', $attributes );
$img = get_cc_image( $size, 'esc_url' );
$result = "<img src=\"{$img}\" {$attributes}>";
echo $result;
}