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Omphaloskepsis/plugins/jetpack/modules/publicize.php
2018-03-21 18:19:20 +00:00

341 lines
10 KiB
PHP

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