341 lines
10 KiB
PHP
341 lines
10 KiB
PHP
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<?php
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/**
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* Module Name: Publicize
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* Module Description: Automatically promote content.
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* Sort Order: 10
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* Recommendation Order: 7
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* First Introduced: 2.0
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* Requires Connection: Yes
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* Auto Activate: Yes
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* Module Tags: Social, Recommended
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* Feature: Recommended, Traffic
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* Additional Search Queries: facebook, twitter, google+, googleplus, google, path, tumblr, linkedin, social, tweet, connections, sharing
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*/
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class Jetpack_Publicize {
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public $in_jetpack = true;
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function __construct() {
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global $publicize_ui;
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$this->in_jetpack = ( class_exists( 'Jetpack' ) && method_exists( 'Jetpack', 'enable_module_configurable' ) ) ? true : false;
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if ( $this->in_jetpack && method_exists( 'Jetpack', 'module_configuration_load' ) ) {
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Jetpack::enable_module_configurable( __FILE__ );
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Jetpack::module_configuration_load( __FILE__, array( $this, 'jetpack_configuration_load' ) );
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add_action( 'init', array( $this, 'sync_posts_init' ), 999 );
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}
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require_once dirname( __FILE__ ) . '/publicize/publicize.php';
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if ( $this->in_jetpack )
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require_once dirname( __FILE__ ) . '/publicize/publicize-jetpack.php';
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else {
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require_once dirname( dirname( __FILE__ ) ) . '/mu-plugins/keyring/keyring.php';
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require_once dirname( __FILE__ ) . '/publicize/publicize-wpcom.php';
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}
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require_once dirname( __FILE__ ) . '/publicize/ui.php';
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$publicize_ui = new Publicize_UI();
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$publicize_ui->in_jetpack = $this->in_jetpack;
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// Jetpack specific checks / hooks
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if ( $this->in_jetpack) {
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add_action( 'jetpack_activate_module_publicize', array( $this, 'module_state_toggle' ) );
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add_action( 'jetpack_deactivate_module_publicize', array( $this, 'module_state_toggle' ) );
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add_filter( 'jetpack_sync_post_module_custom_data', array( $this, 'sync_post_module_custom_data' ), 10, 2 );
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// if sharedaddy isn't active, the sharing menu hasn't been added yet
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$active = Jetpack::get_active_modules();
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if ( in_array( 'publicize', $active ) && !in_array( 'sharedaddy', $active ) )
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add_action( 'admin_menu', array( &$publicize_ui, 'sharing_menu' ) );
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}
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}
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function sync_posts_init() {
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$post_types = array( 'post', 'page' );
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$all_post_types = get_post_types();
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foreach ( $all_post_types as $post_type ) {
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// sync Custom Post Types that support publicize
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if ( post_type_supports( $post_type, 'publicize' ) ) {
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$post_types[] = $post_type;
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}
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}
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Jetpack_Sync::sync_posts( __FILE__, array(
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'post_types' => $post_types,
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) );
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}
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function sync_post_module_custom_data( $custom_data, $post ) {
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if ( post_type_supports( get_post_type( $post ), 'publicize' ) ) {
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$custom_data['cpt_publicizeable'] = true;
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}
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return $custom_data;
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}
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function module_state_toggle() {
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// extra check that we are on the JP blog, just incase
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if ( class_exists( 'Jetpack' ) && $this->in_jetpack ) {
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$jetpack = Jetpack::init();
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$jetpack->sync->register( 'noop' );
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}
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}
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function jetpack_configuration_load() {
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wp_safe_redirect( menu_page_url( 'sharing', false ) );
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exit;
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}
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}
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global $publicize_ui;
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new Jetpack_Publicize;
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/**
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* Helper functions for shared use in the services files
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*/
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class Publicize_Util {
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/**
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* Truncates a string to be shorter than or equal to the length specified
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* Attempts to truncate on word boundaries
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*
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* @param string $string
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* @param int $length
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* @return string
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*/
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public static function crop_str( $string, $length = 256 ) {
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$string = Publicize_Util::sanitize_message( $string );
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$length = absint( $length );
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if ( mb_strlen( $string, 'UTF-8' ) <= $length ) {
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return $string;
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}
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// @see wp_trim_words()
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if ( 'characters' == _x( 'words', 'word count: words or characters?', 'jetpack' ) ) {
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return trim( mb_substr( $string, 0, $length - 1, 'UTF-8' ) ) . "\xE2\x80\xA6"; // ellipsis
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}
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$words = explode( ' ', $string );
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$return = '';
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while ( strlen( $word = array_shift( $words ) ) ) {
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$new_return = $return ? "$return $word" : $word;
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$new_return_length = mb_strlen( $new_return, 'UTF-8' );
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if ( $new_return_length < $length - 1 ) {
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$return = $new_return;
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continue;
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} elseif ( $new_return_length == $length - 1 ) {
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$return = $new_return;
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break;
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}
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if ( !$return ) {
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$return = mb_substr( $new_return, 0, $length - 1, 'UTF-8' );
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}
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break;
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}
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return "$return\xE2\x80\xA6"; // ellipsis
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}
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/**
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* Returns an array of DOMNodes that are comments (including recursing child nodes)
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*
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* @param DOMNode $node
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* @return array
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*/
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function get_comment_nodes( $node ) {
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$comment_nodes = array();
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foreach ( $node->childNodes as $child ) {
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if ( XML_COMMENT_NODE === $child->nodeType ) {
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$comment_nodes[] = $child;
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}
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if ( $child->hasChildNodes() ) {
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$child_comment_nodes = self::get_comment_nodes( $child );
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$comment_nodes = array_merge( $comment_nodes, $child_comment_nodes );
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}
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}
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return $comment_nodes;
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}
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/**
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* Truncates HTML so that its textContent (text without markup) is shorter than or equal to the length specified.
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* The length of the returned string may be larger than the specified length due to the markup.
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* Attempts to truncate on word boundaries.
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*
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* @param string $string
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* @param int $length
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* @param array $allowed_tags KSES input
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* @return string
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*/
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function crop_html( $string, $length = 256, $allowed_tags = array() ) {
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$tags = $GLOBALS['allowedtags']; // Markup allowed in comments...
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$tags['img'] = array( // ... plus images ...
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'alt' => true,
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'height' => true,
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'src' => true,
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'width' => true,
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);
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// ... and some other basics
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$tags['p'] = array();
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$tags['ul'] = array();
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$tags['ol'] = array();
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$tags['li'] = array();
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$tags['br'] = array();
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$tags = array_merge( $tags, $allowed_tags );
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// Clean up, then KSES to really lock it down
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$string = trim( (string) $string );
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$string = preg_replace( '@<(script|style)[^>]*?>.*?</\\1>@si', '', $string );
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$string = wp_kses( $string, $tags );
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$string = mb_convert_encoding( $string, 'HTML-ENTITIES', 'UTF-8' );
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$dom = new DOMDocument( '1.0', 'UTF-8' );
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@$dom->loadHTML( "<html><body>$string</body></html>" ); // suppress parser warning
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// Strip comment nodes, if any
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$comment_nodes = self::get_comment_nodes( $dom->documentElement );
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foreach ( $comment_nodes as &$comment_node ) {
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$comment_node->parentNode->removeChild( $comment_node );
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}
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if ( $comment_nodes ) {
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// Update the $string (some return paths work from just $string)
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$string = $dom->saveHTML();
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$string = preg_replace( '/^<!DOCTYPE.+?>/', '', $string );
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$string = str_replace( array('<html>', '</html>', '<body>', '</body>' ), array( '', '', '', '' ), $string );
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$string = trim( $string );
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}
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// Find the body
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$body = false;
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foreach ( $dom->childNodes as $child ) {
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if ( XML_ELEMENT_NODE === $child->nodeType && 'html' === strtolower( $child->tagName ) ) {
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$body = $child->firstChild;
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break;
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}
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}
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if ( !$body ) {
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return self::crop_str( $string, $length );
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}
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// If the text (without the markup) is shorter than $length, just return
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if ( mb_strlen( $body->textContent, 'UTF-8' ) <= $length ) {
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return $string;
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}
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$node = false;
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do {
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$node = self::remove_innermost_last_child( $body, $node_removed_from );
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$new_string_length = mb_strlen( $body->textContent, 'UTF-8' );
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} while ( $new_string_length > $length );
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$new_string = $dom->saveHTML( $body );
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$new_string = mb_substr( $new_string, 6, -7, 'UTF-8' ); // 6: <body>, 7: </body>
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if ( !$node ) {
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return $new_string ? $new_string : self::crop_str( $string, $length );
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}
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$append_string_length = $length - $new_string_length;
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if ( !$append_string_length ) {
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return $new_string;
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}
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if ( $append_string_length > 1 && XML_TEXT_NODE === $node->nodeType ) { // 1: ellipsis
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$append_string = self::crop_str( $node->textContent, $append_string_length ); // includes ellipsis
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$append_node = $dom->createTextNode( $append_string );
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$node_removed_from->appendChild( $append_node );
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$new_string = $dom->saveHTML( $body );
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$new_string = mb_substr( $new_string, 6, -7, 'UTF-8' );
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} elseif ( $append_string_length > 9 && XML_ELEMENT_NODE === $node->nodeType && 'p' == strtolower( $node->nodeName ) ) { // 9: '<p>X{\xE2\x80\xA6}</p>'
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$new_string .= '<p>' . self::crop_str( $node->textContent, $append_string_length - 8 ) . '</p>';
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}
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// Clean up any empty Paragraphs that might have occurred after removing their children
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return trim( preg_replace( '#<p>\s*</p>#i', '', $new_string ) );
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}
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function remove_innermost_last_child( $node, &$node_removed_from ) {
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$node_removed_from = $node;
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if ( !$node->lastChild ) {
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return false;
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}
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if ( $node->lastChild->hasChildNodes() ) {
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return self::remove_innermost_last_child( $node->lastChild, $node_removed_from );
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}
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$innermost_last_child = $node->lastChild;
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$node->removeChild( $innermost_last_child );
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return $innermost_last_child;
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}
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function bump_stats_extras_publicize_url( $bin, $post_id ) {
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static $done = array();
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if ( isset( $done[$post_id] ) ) {
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return;
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}
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$done[$post_id] = true;
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/** This action is documented in modules/widgets/social-media-icons.php */
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do_action( 'jetpack_bump_stats_extras', 'publicize_url', $bin );
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}
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public static function build_sprintf( $args ) {
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$search = array();
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$replace = array();
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foreach ( $args as $k => $arg ) {
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if ( 0 == $k ) {
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$string = $arg;
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continue;
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}
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$search[] = "%$arg%";
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$replace[] = "%$k\$s";
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}
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return str_replace( $search, $replace, $string );
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}
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public static function sanitize_message( $message ) {
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$message = preg_replace( '@<(script|style)[^>]*?>.*?</\\1>@si', '', $message );
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$message = wp_kses( $message, array() );
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$message = preg_replace('/[\r\n\t ]+/', ' ', $message);
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$message = trim( $message );
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$message = htmlspecialchars_decode( $message, ENT_QUOTES );
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return $message;
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}
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}
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if( ! ( defined( 'IS_WPCOM' ) && IS_WPCOM ) && ! function_exists( 'publicize_init' ) ) {
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/**
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* Helper for grabbing a Publicize object from the "front-end" (non-admin) of
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* a site. Normally Publicize is only loaded in wp-admin, so there's a little
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* set up that you might need to do if you want to use it on the front end.
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* Just call this function and it returns a Publicize object.
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*
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* @return Publicize Object
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*/
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function publicize_init() {
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global $publicize;
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if ( ! class_exists( 'Publicize' ) ) {
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require_once dirname( __FILE__ ) . '/publicize/publicize.php';
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}
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return $publicize;
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}
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}
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