user_trailingslashit($string, $type_of_url = '') { global $wp_rewrite; if ( $wp_rewrite->use_trailing_slashes ) $string = trailingslashit($string); else $string = untrailingslashit($string); // Note that $type_of_url can be one of following: // single, single_trackback, single_feed, single_paged, feed, category, page, year, month, day, paged $string = apply_filters('user_trailingslashit', $string, $type_of_url); return $string; } /** * Display permalink anchor for current post. * * The permalink mode title will use the post title for the 'a' element 'id' * attribute. The id mode uses 'post-' with the post ID for the 'id' attribute. * * @since 0.71 * * @param string $mode Permalink mode can be either 'title', 'id', or default, which is 'id'. */ function permalink_anchor($mode = 'id') { global $post; switch ( strtolower($mode) ) { case 'title': $title = sanitize_title($post->post_title) . '-' . $post->ID; echo ''; break; case 'id': default: echo ''; break; } } /** * Retrieve full permalink for current post or post ID. * * @since 1.0.0 * * @param int $id Optional. Post ID. * @param bool $leavename Optional, defaults to false. Whether to keep post name or page name. * @return string */ function get_permalink($id = 0, $leavename = false) { $rewritecode = array( '%year%', '%monthnum%', '%day%', '%hour%', '%minute%', '%second%', $leavename? '' : '%postname%', '%post_id%', '%category%', '%author%', $leavename? '' : '%pagename%', ); if ( is_object($id) && isset($id->filter) && 'sample' == $id->filter ) { $post = $id; $sample = true; } else { $post = &get_post($id); $sample = false; } if ( empty($post->ID) ) return false; if ( $post->post_type == 'page' ) return get_page_link($post->ID, $leavename, $sample); elseif ( $post->post_type == 'attachment' ) return get_attachment_link($post->ID); elseif ( in_array($post->post_type, get_post_types( array('_builtin' => false) ) ) ) return get_post_permalink($post->ID, $leavename, $sample); $permalink = get_option('permalink_structure'); $permalink = apply_filters('pre_post_link', $permalink, $post, $leavename); if ( '' != $permalink && !in_array($post->post_status, array('draft', 'pending', 'auto-draft')) ) { $unixtime = strtotime($post->post_date); $category = ''; if ( strpos($permalink, '%category%') !== false ) { $cats = get_the_category($post->ID); if ( $cats ) { usort($cats, '_usort_terms_by_ID'); // order by ID $category = $cats[0]->slug; if ( $parent = $cats[0]->parent ) $category = get_category_parents($parent, false, '/', true) . $category; } // show default category in permalinks, without // having to assign it explicitly if ( empty($category) ) { $default_category = get_category( get_option( 'default_category' ) ); $category = is_wp_error( $default_category ) ? '' : $default_category->slug; } } $author = ''; if ( strpos($permalink, '%author%') !== false ) { $authordata = get_userdata($post->post_author); $author = $authordata->user_nicename; } $date = explode(" ",date('Y m d H i s', $unixtime)); $rewritereplace = array( $date[0], $date[1], $date[2], $date[3], $date[4], $date[5], $post->post_name, $post->ID, $category, $author, $post->post_name, ); $permalink = home_url( str_replace($rewritecode, $rewritereplace, $permalink) ); $permalink = user_trailingslashit($permalink, 'single'); } else { // if they're not using the fancy permalink option $permalink = home_url('?p=' . $post->ID); } return apply_filters('post_link', $permalink, $post, $leavename); } /** * Retrieve the permalink for a post with a custom post type. * * @since 3.0.0 * * @param int $id Optional. Post ID. * @param bool $leavename Optional, defaults to false. Whether to keep post name. * @param bool $sample Optional, defaults to false. Is it a sample permalink. * @return string */ function get_post_permalink( $id = 0, $leavename = false, $sample = false ) { global $wp_rewrite; $post = &get_post($id); if ( is_wp_error( $post ) ) return $post; $post_link = $wp_rewrite->get_extra_permastruct($post->post_type); $slug = $post->post_name; $draft_or_pending = in_array( $post->post_status, array( 'draft', 'pending', 'auto-draft' ) ); $post_type = get_post_type_object($post->post_type); if ( !empty($post_link) && ( ( isset($post->post_status) && !$draft_or_pending ) || $sample ) ) { if ( ! $leavename ) { if ( $post_type->hierarchical ) $slug = get_page_uri($id); $post_link = str_replace("%$post->post_type%", $slug, $post_link); } $post_link = home_url( user_trailingslashit($post_link) ); } else { if ( $post_type->query_var && ( isset($post->post_status) && !$draft_or_pending ) ) $post_link = add_query_arg($post_type->query_var, $slug, ''); else $post_link = add_query_arg(array('post_type' => $post->post_type, 'p' => $post->ID), ''); $post_link = home_url($post_link); } return apply_filters('post_type_link', $post_link, $post, $leavename, $sample); } /** * Retrieve permalink from post ID. * * @since 1.0.0 * * @param int $post_id Optional. Post ID. * @param mixed $deprecated Not used. * @return string */ function post_permalink( $post_id = 0, $deprecated = '' ) { if ( !empty( $deprecated ) ) _deprecated_argument( __FUNCTION__, '1.3' ); return get_permalink($post_id); } /** * Retrieve the permalink for current page or page ID. * * Respects page_on_front. Use this one. * * @since 1.5.0 * * @param int $id Optional. Post ID. * @param bool $leavename Optional, defaults to false. Whether to keep page name. * @param bool $sample Optional, defaults to false. Is it a sample permalink. * @return string */ function get_page_link( $id = false, $leavename = false, $sample = false ) { global $post; $id = (int) $id; if ( !$id ) $id = (int) $post->ID; if ( 'page' == get_option('show_on_front') && $id == get_option('page_on_front') ) $link = home_url('/'); else $link = _get_page_link( $id , $leavename, $sample ); return apply_filters('page_link', $link, $id, $sample); } /** * Retrieve the page permalink. * * Ignores page_on_front. Internal use only. * * @since 2.1.0 * @access private * * @param int $id Optional. Post ID. * @param bool $leavename Optional. Leave name. * @param bool $sample Optional. Sample permalink. * @return string */ function _get_page_link( $id = false, $leavename = false, $sample = false ) { global $post, $wp_rewrite; if ( !$id ) $id = (int) $post->ID; else $post = &get_post($id); $link = $wp_rewrite->get_page_permastruct(); if ( '' != $link && ( ( isset($post->post_status) && 'draft' != $post->post_status && 'pending' != $post->post_status ) || $sample ) ) { if ( ! $leavename ) $link = str_replace('%pagename%', get_page_uri($id), $link); $link = home_url($link); $link = user_trailingslashit($link, 'page'); } else { $link = home_url("?page_id=$id"); } return apply_filters( '_get_page_link', $link, $id ); } /** * Retrieve permalink for attachment. * * This can be used in the WordPress Loop or outside of it. * * @since 2.0.0 * * @param int $id Optional. Post ID. * @return string */ function get_attachment_link($id = false) { global $post, $wp_rewrite; $link = false; if ( ! $id) $id = (int) $post->ID; $object = get_post($id); if ( $wp_rewrite->using_permalinks() && ($object->post_parent > 0) && ($object->post_parent != $id) ) { $parent = get_post($object->post_parent); if ( 'page' == $parent->post_type ) $parentlink = _get_page_link( $object->post_parent ); // Ignores page_on_front else $parentlink = get_permalink( $object->post_parent ); if ( is_numeric($object->post_name) || false !== strpos(get_option('permalink_structure'), '%category%') ) $name = 'attachment/' . $object->post_name; // // is paged so we use the explicit attachment marker else $name = $object->post_name; if ( strpos($parentlink, '?') === false ) $link = user_trailingslashit( trailingslashit($parentlink) . $name ); } if ( ! $link ) $link = home_url( "/?attachment_id=$id" ); return apply_filters('attachment_link', $link, $id); } /** * Retrieve the permalink for the year archives. * * @since 1.5.0 * * @param int|bool $year False for current year or year for permalink. * @return string */ function get_year_link($year) { global $wp_rewrite; if ( !$year ) $year = gmdate('Y', current_time('timestamp')); $yearlink = $wp_rewrite->get_year_permastruct(); if ( !empty($yearlink) ) { $yearlink = str_replace('%year%', $year, $yearlink); return apply_filters('year_link', home_url( user_trailingslashit($yearlink, 'year') ), $year); } else { return apply_filters('year_link', home_url('?m=' . $year), $year); } } /** * Retrieve the permalink for the month archives with year. * * @since 1.0.0 * * @param bool|int $year False for current year. Integer of year. * @param bool|int $month False for current month. Integer of month. * @return string */ function get_month_link($year, $month) { global $wp_rewrite; if ( !$year ) $year = gmdate('Y', current_time('timestamp')); if ( !$month ) $month = gmdate('m', current_time('timestamp')); $monthlink = $wp_rewrite->get_month_permastruct(); if ( !empty($monthlink) ) { $monthlink = str_replace('%year%', $year, $monthlink); $monthlink = str_replace('%monthnum%', zeroise(intval($month), 2), $monthlink); return apply_filters('month_link', home_url( user_trailingslashit($monthlink, 'month') ), $year, $month); } else { return apply_filters('month_link', home_url( '?m=' . $year . zeroise($month, 2) ), $year, $month); } } /** * Retrieve the permalink for the day archives with year and month. * * @since 1.0.0 * * @param bool|int $year False for current year. Integer of year. * @param bool|int $month False for current month. Integer of month. * @param bool|int $day False for current day. Integer of day. * @return string */ function get_day_link($year, $month, $day) { global $wp_rewrite; if ( !$year ) $year = gmdate('Y', current_time('timestamp')); if ( !$month ) $month = gmdate('m', current_time('timestamp')); if ( !$day ) $day = gmdate('j', current_time('timestamp')); $daylink = $wp_rewrite->get_day_permastruct(); if ( !empty($daylink) ) { $daylink = str_replace('%year%', $year, $daylink); $daylink = str_replace('%monthnum%', zeroise(intval($month), 2), $daylink); $daylink = str_replace('%day%', zeroise(intval($day), 2), $daylink); return apply_filters('day_link', home_url( user_trailingslashit($daylink, 'day') ), $year, $month, $day); } else { return apply_filters('day_link', home_url( '?m=' . $year . zeroise($month, 2) . zeroise($day, 2) ), $year, $month, $day); } } /** * Display the permalink for the feed type. * * @since 3.0.0 * * @param string $anchor The link's anchor text. * @param string $feed Optional, defaults to default feed. Feed type. */ function the_feed_link( $anchor, $feed = '' ) { $link = '' . $anchor . ''; echo apply_filters( 'the_feed_link', $link, $feed ); } /** * Retrieve the permalink for the feed type. * * @since 1.5.0 * * @param string $feed Optional, defaults to default feed. Feed type. * @return string */ function get_feed_link($feed = '') { global $wp_rewrite; $permalink = $wp_rewrite->get_feed_permastruct(); if ( '' != $permalink ) { if ( false !== strpos($feed, 'comments_') ) { $feed = str_replace('comments_', '', $feed); $permalink = $wp_rewrite->get_comment_feed_permastruct(); } if ( get_default_feed() == $feed ) $feed = ''; $permalink = str_replace('%feed%', $feed, $permalink); $permalink = preg_replace('#/+#', '/', "/$permalink"); $output = home_url( user_trailingslashit($permalink, 'feed') ); } else { if ( empty($feed) ) $feed = get_default_feed(); if ( false !== strpos($feed, 'comments_') ) $feed = str_replace('comments_', 'comments-', $feed); $output = home_url("?feed={$feed}"); } return apply_filters('feed_link', $output, $feed); } /** * Retrieve the permalink for the post comments feed. * * @since 2.2.0 * * @param int $post_id Optional. Post ID. * @param string $feed Optional. Feed type. * @return string */ function get_post_comments_feed_link($post_id = '', $feed = '') { global $id; if ( empty($post_id) ) $post_id = (int) $id; if ( empty($feed) ) $feed = get_default_feed(); if ( '' != get_option('permalink_structure') ) { if ( 'page' == get_option('show_on_front') && $post_id == get_option('page_on_front') ) $url = _get_page_link( $post_id ); else $url = get_permalink($post_id); $url = trailingslashit($url) . 'feed'; if ( $feed != get_default_feed() ) $url .= "/$feed"; $url = user_trailingslashit($url, 'single_feed'); } else { $type = get_post_field('post_type', $post_id); if ( 'page' == $type ) $url = home_url("?feed=$feed&page_id=$post_id"); else $url = home_url("?feed=$feed&p=$post_id"); } return apply_filters('post_comments_feed_link', $url); } /** * Display the comment feed link for a post. * * Prints out the comment feed link for a post. Link text is placed in the * anchor. If no link text is specified, default text is used. If no post ID is * specified, the current post is used. * * @package WordPress * @subpackage Feed * @since 2.5.0 * * @param string $link_text Descriptive text. * @param int $post_id Optional post ID. Default to current post. * @param string $feed Optional. Feed format. * @return string Link to the comment feed for the current post. */ function post_comments_feed_link( $link_text = '', $post_id = '', $feed = '' ) { $url = get_post_comments_feed_link($post_id, $feed); if ( empty($link_text) ) $link_text = __('Comments Feed'); echo apply_filters( 'post_comments_feed_link_html', "$link_text", $post_id, $feed ); } /** * Retrieve the feed link for a given author. * * Returns a link to the feed for all posts by a given author. A specific feed * can be requested or left blank to get the default feed. * * @package WordPress * @subpackage Feed * @since 2.5.0 * * @param int $author_id ID of an author. * @param string $feed Optional. Feed type. * @return string Link to the feed for the author specified by $author_id. */ function get_author_feed_link( $author_id, $feed = '' ) { $author_id = (int) $author_id; $permalink_structure = get_option('permalink_structure'); if ( empty($feed) ) $feed = get_default_feed(); if ( '' == $permalink_structure ) { $link = home_url("?feed=$feed&author=" . $author_id); } else { $link = get_author_posts_url($author_id); if ( $feed == get_default_feed() ) $feed_link = 'feed'; else $feed_link = "feed/$feed"; $link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed'); } $link = apply_filters('author_feed_link', $link, $feed); return $link; } /** * Retrieve the feed link for a category. * * Returns a link to the feed for all post in a given category. A specific feed * can be requested or left blank to get the default feed. * * @package WordPress * @subpackage Feed * @since 2.5.0 * * @param int $cat_id ID of a category. * @param string $feed Optional. Feed type. * @return string Link to the feed for the category specified by $cat_id. */ function get_category_feed_link($cat_id, $feed = '') { return get_term_feed_link($cat_id, 'category', $feed); } /** * Retrieve the feed link for a taxonomy. * * Returns a link to the feed for all post in a given term. A specific feed * can be requested or left blank to get the default feed. * * @since 3.0 * * @param int $term_id ID of a category. * @param string $taxonomy Optional. Taxonomy of $term_id * @param string $feed Optional. Feed type. * @return string Link to the feed for the taxonomy specified by $term_id and $taxonomy. */ function get_term_feed_link( $term_id, $taxonomy = 'category', $feed = '' ) { global $wp_rewrite; $term_id = ( int ) $term_id; $term = get_term( $term_id, $taxonomy ); if ( empty( $term ) || is_wp_error( $term ) ) return false; if ( empty( $feed ) ) $feed = get_default_feed(); $permalink_structure = get_option( 'permalink_structure' ); if ( '' == $permalink_structure ) { if ( 'category' == $taxonomy ) { $link = home_url("?feed=$feed&cat=$term_id"); } elseif ( 'post_tag' == $taxonomy ) { $link = home_url("?feed=$feed&tag=$term->slug"); } else { $t = get_taxonomy( $taxonomy ); $link = home_url("?feed=$feed&$t->query_var=$term->slug"); } } else { $link = get_term_link( $term_id, $term->taxonomy ); if ( $feed == get_default_feed() ) $feed_link = 'feed'; else $feed_link = "feed/$feed"; $link = trailingslashit( $link ) . user_trailingslashit( $feed_link, 'feed' ); } if ( 'category' == $taxonomy ) $link = apply_filters( 'category_feed_link', $link, $feed ); elseif ( 'post_tag' == $taxonomy ) $link = apply_filters( 'category_feed_link', $link, $feed ); else $link = apply_filters( 'taxonomy_feed_link', $link, $feed, $taxonomy ); return $link; } /** * Retrieve permalink for feed of tag. * * @since 2.3.0 * * @param int $tag_id Tag ID. * @param string $feed Optional. Feed type. * @return string */ function get_tag_feed_link($tag_id, $feed = '') { return get_term_feed_link($tag_id, 'post_tag', $feed); } /** * Retrieve edit tag link. * * @since 2.7.0 * * @param int $tag_id Tag ID * @return string */ function get_edit_tag_link( $tag_id = 0, $taxonomy = 'post_tag' ) { global $post_type; $tax = get_taxonomy($taxonomy); if ( !current_user_can($tax->cap->edit_terms) ) return; $tag = get_term($tag_id, $taxonomy); $location = admin_url('edit-tags.php?action=edit&taxonomy=' . $taxonomy . '&' . (!empty($post_type) ? 'post_type=' . $post_type .'&' : '') .'tag_ID=' . $tag->term_id); return apply_filters( 'get_edit_tag_link', $location ); } /** * Display or retrieve edit tag link with formatting. * * @since 2.7.0 * * @param string $link Optional. Anchor text. * @param string $before Optional. Display before edit link. * @param string $after Optional. Display after edit link. * @param int|object $tag Tag object or ID * @return string|null HTML content, if $echo is set to false. */ function edit_tag_link( $link = '', $before = '', $after = '', $tag = null ) { $tax = get_taxonomy('post_tag'); if ( !current_user_can($tax->cap->edit_terms) ) return; $tag = get_term($tag, 'post_tag'); if ( empty($link) ) $link = __('Edit This'); $link = '' . $link . ''; echo $before . apply_filters( 'edit_tag_link', $link, $tag->term_id ) . $after; } /** * Retrieve permalink for search. * * @since 3.0.0 * @param string $query Optional. The query string to use. If empty the current query is used. * @return string */ function get_search_link( $query = '' ) { global $wp_rewrite; if ( empty($query) ) $search = get_search_query( false ); else $search = stripslashes($query); $permastruct = $wp_rewrite->get_search_permastruct(); if ( empty( $permastruct ) ) { $link = home_url('?s=' . urlencode($search) ); } else { $search = urlencode($search); $search = str_replace('%2F', '/', $search); // %2F(/) is not valid within a URL, send it unencoded. $link = str_replace( '%search%', $search, $permastruct ); $link = home_url( user_trailingslashit( $link, 'search' ) ); } return apply_filters( 'search_link', $link, $search ); } /** * Retrieve the permalink for the feed of the search results. * * @since 2.5.0 * * @param string $search_query Optional. Search query. * @param string $feed Optional. Feed type. * @return string */ function get_search_feed_link($search_query = '', $feed = '') { global $wp_rewrite; $link = get_search_link($search_query); if ( empty($feed) ) $feed = get_default_feed(); $permastruct = $wp_rewrite->get_search_permastruct(); if ( empty($permastruct) ) { $link = add_query_arg('feed', $feed, $link); } else { $link = trailingslashit($link); $link .= "feed/$feed/"; } $link = apply_filters('search_feed_link', $link, $feed, 'posts'); return $link; } /** * Retrieve the permalink for the comments feed of the search results. * * @since 2.5.0 * * @param string $search_query Optional. Search query. * @param string $feed Optional. Feed type. * @return string */ function get_search_comments_feed_link($search_query = '', $feed = '') { global $wp_rewrite; if ( empty($feed) ) $feed = get_default_feed(); $link = get_search_feed_link($search_query, $feed); $permastruct = $wp_rewrite->get_search_permastruct(); if ( empty($permastruct) ) $link = add_query_arg('feed', 'comments-' . $feed, $link); else $link = add_query_arg('withcomments', 1, $link); $link = apply_filters('search_feed_link', $link, $feed, 'comments'); return $link; } /** * Retrieve edit posts link for post. * * Can be used within the WordPress loop or outside of it. Can be used with * pages, posts, attachments, and revisions. * * @since 2.3.0 * * @param int $id Optional. Post ID. * @param string $context Optional, default to display. How to write the '&', defaults to '&'. * @return string */ function get_edit_post_link( $id = 0, $context = 'display' ) { if ( !$post = &get_post( $id ) ) return; if ( 'display' == $context ) $action = '&action=edit'; else $action = '&action=edit'; $post_type_object = get_post_type_object( $post->post_type ); if ( !$post_type_object ) return; if ( !current_user_can( $post_type_object->cap->edit_post, $post->ID ) ) return; return apply_filters( 'get_edit_post_link', admin_url( sprintf($post_type_object->_edit_link . $action, $post->ID) ), $post->ID, $context ); } /** * Display edit post link for post. * * @since 1.0.0 * * @param string $link Optional. Anchor text. * @param string $before Optional. Display before edit link. * @param string $after Optional. Display after edit link. * @param int $id Optional. Post ID. */ function edit_post_link( $link = null, $before = '', $after = '', $id = 0 ) { if ( !$post = &get_post( $id ) ) return; if ( !$url = get_edit_post_link( $post->ID ) ) return; if ( null === $link ) $link = __('Edit This'); $post_type_obj = get_post_type_object( $post->post_type ); $link = '' . $link . ''; echo $before . apply_filters( 'edit_post_link', $link, $post->ID ) . $after; } /** * Retrieve delete posts link for post. * * Can be used within the WordPress loop or outside of it, with any post type. * * @since 2.9.0 * * @param int $id Optional. Post ID. * @param string $deprecated Not used. * @param bool $force_delete Whether to bypass trash and force deletion. Default is false. * @return string */ function get_delete_post_link( $id = 0, $deprecated = '', $force_delete = false ) { if ( ! empty( $deprecated ) ) _deprecated_argument( __FUNCTION__, '3.0.0' ); if ( !$post = &get_post( $id ) ) return; $post_type_object = get_post_type_object( $post->post_type ); if ( !$post_type_object ) return; if ( !current_user_can( $post_type_object->cap->delete_post, $post->ID ) ) return; $action = ( $force_delete || !EMPTY_TRASH_DAYS ) ? 'delete' : 'trash'; $delete_link = add_query_arg( 'action', $action, admin_url( sprintf( $post_type_object->_edit_link, $post->ID ) ) ); return apply_filters( 'get_delete_post_link', wp_nonce_url( $delete_link, "$action-{$post->post_type}_{$post->ID}" ), $post->ID, $force_delete ); } /** * Retrieve edit comment link. * * @since 2.3.0 * * @param int $comment_id Optional. Comment ID. * @return string */ function get_edit_comment_link( $comment_id = 0 ) { $comment = &get_comment( $comment_id ); $post = &get_post( $comment->comment_post_ID ); if ( $post->post_type == 'page' ) { if ( !current_user_can( 'edit_page', $post->ID ) ) return; } else { if ( !current_user_can( 'edit_post', $post->ID ) ) return; } $location = admin_url('comment.php?action=editcomment&c=') . $comment->comment_ID; return apply_filters( 'get_edit_comment_link', $location ); } /** * Display or retrieve edit comment link with formatting. * * @since 1.0.0 * * @param string $link Optional. Anchor text. * @param string $before Optional. Display before edit link. * @param string $after Optional. Display after edit link. * @return string|null HTML content, if $echo is set to false. */ function edit_comment_link( $link = null, $before = '', $after = '' ) { global $comment, $post; if ( $post->post_type == 'page' ) { if ( !current_user_can( 'edit_page', $post->ID ) ) return; } else { if ( !current_user_can( 'edit_post', $post->ID ) ) return; } if ( null === $link ) $link = __('Edit This'); $link = '' . $link . ''; echo $before . apply_filters( 'edit_comment_link', $link, $comment->comment_ID ) . $after; } /** * Display edit bookmark (literally a URL external to blog) link. * * @since 2.7.0 * * @param int $link Optional. Bookmark ID. * @return string */ function get_edit_bookmark_link( $link = 0 ) { $link = get_bookmark( $link ); if ( !current_user_can('manage_links') ) return; $location = admin_url('link.php?action=edit&link_id=') . $link->link_id; return apply_filters( 'get_edit_bookmark_link', $location, $link->link_id ); } /** * Display edit bookmark (literally a URL external to blog) link anchor content. * * @since 2.7.0 * * @param string $link Optional. Anchor text. * @param string $before Optional. Display before edit link. * @param string $after Optional. Display after edit link. * @param int $bookmark Optional. Bookmark ID. */ function edit_bookmark_link( $link = '', $before = '', $after = '', $bookmark = null ) { $bookmark = get_bookmark($bookmark); if ( !current_user_can('manage_links') ) return; if ( empty($link) ) $link = __('Edit This'); $link = '' . $link . ''; echo $before . apply_filters( 'edit_bookmark_link', $link, $bookmark->link_id ) . $after; } // Navigation links /** * Retrieve previous post link that is adjacent to current post. * * @since 1.5.0 * * @param bool $in_same_cat Optional. Whether link should be in same category. * @param string $excluded_categories Optional. Excluded categories IDs. * @return string */ function get_previous_post($in_same_cat = false, $excluded_categories = '') { return get_adjacent_post($in_same_cat, $excluded_categories); } /** * Retrieve next post link that is adjacent to current post. * * @since 1.5.0 * * @param bool $in_same_cat Optional. Whether link should be in same category. * @param string $excluded_categories Optional. Excluded categories IDs. * @return string */ function get_next_post($in_same_cat = false, $excluded_categories = '') { return get_adjacent_post($in_same_cat, $excluded_categories, false); } /** * Retrieve adjacent post link. * * Can either be next or previous post link. * * @since 2.5.0 * * @param bool $in_same_cat Optional. Whether link should be in same category. * @param string $excluded_categories Optional. Excluded categories IDs. * @param bool $previous Optional. Whether to retrieve previous post. * @return string */ function get_adjacent_post($in_same_cat = false, $excluded_categories = '', $previous = true) { global $post, $wpdb; if ( empty( $post ) ) return null; $current_post_date = $post->post_date; $join = ''; $posts_in_ex_cats_sql = ''; if ( $in_same_cat || !empty($excluded_categories) ) { $join = " INNER JOIN $wpdb->term_relationships AS tr ON p.ID = tr.object_id INNER JOIN $wpdb->term_taxonomy tt ON tr.term_taxonomy_id = tt.term_taxonomy_id"; if ( $in_same_cat ) { $cat_array = wp_get_object_terms($post->ID, 'category', array('fields' => 'ids')); $join .= " AND tt.taxonomy = 'category' AND tt.term_id IN (" . implode(',', $cat_array) . ")"; } $posts_in_ex_cats_sql = "AND tt.taxonomy = 'category'"; if ( !empty($excluded_categories) ) { $excluded_categories = array_map('intval', explode(' and ', $excluded_categories)); if ( !empty($cat_array) ) { $excluded_categories = array_diff($excluded_categories, $cat_array); $posts_in_ex_cats_sql = ''; } if ( !empty($excluded_categories) ) { $posts_in_ex_cats_sql = " AND tt.taxonomy = 'category' AND tt.term_id NOT IN (" . implode($excluded_categories, ',') . ')'; } } } $adjacent = $previous ? 'previous' : 'next'; $op = $previous ? '<' : '>'; $order = $previous ? 'DESC' : 'ASC'; $join = apply_filters( "get_{$adjacent}_post_join", $join, $in_same_cat, $excluded_categories ); $where = apply_filters( "get_{$adjacent}_post_where", $wpdb->prepare("WHERE p.post_date $op %s AND p.post_type = %s AND p.post_status = 'publish' $posts_in_ex_cats_sql", $current_post_date, $post->post_type), $in_same_cat, $excluded_categories ); $sort = apply_filters( "get_{$adjacent}_post_sort", "ORDER BY p.post_date $order LIMIT 1" ); $query = "SELECT p.* FROM $wpdb->posts AS p $join $where $sort"; $query_key = 'adjacent_post_' . md5($query); $result = wp_cache_get($query_key, 'counts'); if ( false !== $result ) return $result; $result = $wpdb->get_row("SELECT p.* FROM $wpdb->posts AS p $join $where $sort"); if ( null === $result ) $result = ''; wp_cache_set($query_key, $result, 'counts'); return $result; } /** * Get adjacent post relational link. * * Can either be next or previous post relational link. * * @since 2.8.0 * * @param string $title Optional. Link title format. * @param bool $in_same_cat Optional. Whether link should be in same category. * @param string $excluded_categories Optional. Excluded categories IDs. * @param bool $previous Optional, default is true. Whether display link to previous post. * @return string */ function get_adjacent_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '', $previous = true) { if ( $previous && is_attachment() && is_object( $GLOBALS['post'] ) ) $post = & get_post($GLOBALS['post']->post_parent); else $post = get_adjacent_post($in_same_cat,$excluded_categories,$previous); if ( empty($post) ) return; if ( empty($post->post_title) ) $post->post_title = $previous ? __('Previous Post') : __('Next Post'); $date = mysql2date(get_option('date_format'), $post->post_date); $title = str_replace('%title', $post->post_title, $title); $title = str_replace('%date', $date, $title); $title = apply_filters('the_title', $title, $post->ID); $link = $previous ? "\n"; $adjacent = $previous ? 'previous' : 'next'; return apply_filters( "{$adjacent}_post_rel_link", $link ); } /** * Display relational links for the posts adjacent to the current post. * * @since 2.8.0 * * @param string $title Optional. Link title format. * @param bool $in_same_cat Optional. Whether link should be in same category. * @param string $excluded_categories Optional. Excluded categories IDs. */ function adjacent_posts_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') { echo get_adjacent_post_rel_link($title, $in_same_cat, $excluded_categories = '', true); echo get_adjacent_post_rel_link($title, $in_same_cat, $excluded_categories = '', false); } /** * Display relational links for the posts adjacent to the current post for single post pages. * * This is meant to be attached to actions like 'wp_head'. Do not call this directly in plugins or theme templates. * @since 3.0.0 * */ function adjacent_posts_rel_link_wp_head() { if ( !is_singular() || is_attachment() ) return; adjacent_posts_rel_link(); } /** * Display relational link for the next post adjacent to the current post. * * @since 2.8.0 * * @param string $title Optional. Link title format. * @param bool $in_same_cat Optional. Whether link should be in same category. * @param string $excluded_categories Optional. Excluded categories IDs. */ function next_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') { echo get_adjacent_post_rel_link($title, $in_same_cat, $excluded_categories = '', false); } /** * Display relational link for the previous post adjacent to the current post. * * @since 2.8.0 * * @param string $title Optional. Link title format. * @param bool $in_same_cat Optional. Whether link should be in same category. * @param string $excluded_categories Optional. Excluded categories IDs. */ function prev_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') { echo get_adjacent_post_rel_link($title, $in_same_cat, $excluded_categories = '', true); } /** * Retrieve boundary post. * * Boundary being either the first or last post by publish date within the contraitns specified * by in same category or excluded categories. * * @since 2.8.0 * * @param bool $in_same_cat Optional. Whether returned post should be in same category. * @param string $excluded_categories Optional. Excluded categories IDs. * @param bool $previous Optional. Whether to retrieve first post. * @return object */ function get_boundary_post($in_same_cat = false, $excluded_categories = '', $start = true) { global $post; if ( empty($post) || !is_single() || is_attachment() ) return null; $cat_array = array(); $excluded_categories = array(); if ( !empty($in_same_cat) || !empty($excluded_categories) ) { if ( !empty($in_same_cat) ) { $cat_array = wp_get_object_terms($post->ID, 'category', array('fields' => 'ids')); } if ( !empty($excluded_categories) ) { $excluded_categories = array_map('intval', explode(',', $excluded_categories)); if ( !empty($cat_array) ) $excluded_categories = array_diff($excluded_categories, $cat_array); $inverse_cats = array(); foreach ( $excluded_categories as $excluded_category) $inverse_cats[] = $excluded_category * -1; $excluded_categories = $inverse_cats; } } $categories = implode(',', array_merge($cat_array, $excluded_categories) ); $order = $start ? 'ASC' : 'DESC'; return get_posts( array('numberposts' => 1, 'no_found_rows' => true, 'order' => $order, 'orderby' => 'ID', 'category' => $categories) ); } /** * Get boundary post relational link. * * Can either be start or end post relational link. * * @since 2.8.0 * * @param string $title Optional. Link title format. * @param bool $in_same_cat Optional. Whether link should be in same category. * @param string $excluded_categories Optional. Excluded categories IDs. * @param bool $start Optional, default is true. Whether display link to first post. * @return string */ function get_boundary_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '', $start = true) { $posts = get_boundary_post($in_same_cat,$excluded_categories,$start); // If there is no post stop. if ( empty($posts) ) return; // Even though we limited get_posts to return only 1 item it still returns an array of objects. $post = $posts[0]; if ( empty($post->post_title) ) $post->post_title = $start ? __('First Post') : __('Last Post'); $date = mysql2date(get_option('date_format'), $post->post_date); $title = str_replace('%title', $post->post_title, $title); $title = str_replace('%date', $date, $title); $title = apply_filters('the_title', $title, $post->ID); $link = $start ? "\n"; $boundary = $start ? 'start' : 'end'; return apply_filters( "{$boundary}_post_rel_link", $link ); } /** * Display relational link for the first post. * * @since 2.8.0 * * @param string $title Optional. Link title format. * @param bool $in_same_cat Optional. Whether link should be in same category. * @param string $excluded_categories Optional. Excluded categories IDs. */ function start_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') { echo get_boundary_post_rel_link($title, $in_same_cat, $excluded_categories, true); } /** * Get site index relational link. * * @since 2.8.0 * * @return string */ function get_index_rel_link() { $link = "\n"; return apply_filters( "index_rel_link", $link ); } /** * Display relational link for the site index. * * @since 2.8.0 */ function index_rel_link() { echo get_index_rel_link(); } /** * Get parent post relational link. * * @since 2.8.0 * * @param string $title Optional. Link title format. * @return string */ function get_parent_post_rel_link($title = '%title') { if ( ! empty( $GLOBALS['post'] ) && ! empty( $GLOBALS['post']->post_parent ) ) $post = & get_post($GLOBALS['post']->post_parent); if ( empty($post) ) return; $date = mysql2date(get_option('date_format'), $post->post_date); $title = str_replace('%title', $post->post_title, $title); $title = str_replace('%date', $date, $title); $title = apply_filters('the_title', $title, $post->ID); $link = "\n"; return apply_filters( "parent_post_rel_link", $link ); } /** * Display relational link for parent item * * @since 2.8.0 */ function parent_post_rel_link($title = '%title') { echo get_parent_post_rel_link($title); } /** * Display previous post link that is adjacent to the current post. * * @since 1.5.0 * * @param string $format Optional. Link anchor format. * @param string $link Optional. Link permalink format. * @param bool $in_same_cat Optional. Whether link should be in same category. * @param string $excluded_categories Optional. Excluded categories IDs. */ function previous_post_link($format='« %link', $link='%title', $in_same_cat = false, $excluded_categories = '') { adjacent_post_link($format, $link, $in_same_cat, $excluded_categories, true); } /** * Display next post link that is adjacent to the current post. * * @since 1.5.0 * * @param string $format Optional. Link anchor format. * @param string $link Optional. Link permalink format. * @param bool $in_same_cat Optional. Whether link should be in same category. * @param string $excluded_categories Optional. Excluded categories IDs. */ function next_post_link($format='%link »', $link='%title', $in_same_cat = false, $excluded_categories = '') { adjacent_post_link($format, $link, $in_same_cat, $excluded_categories, false); } /** * Display adjacent post link. * * Can be either next post link or previous. * * @since 2.5.0 * * @param string $format Link anchor format. * @param string $link Link permalink format. * @param bool $in_same_cat Optional. Whether link should be in same category. * @param string $excluded_categories Optional. Excluded categories IDs. * @param bool $previous Optional, default is true. Whether display link to previous post. */ function adjacent_post_link($format, $link, $in_same_cat = false, $excluded_categories = '', $previous = true) { if ( $previous && is_attachment() ) $post = & get_post($GLOBALS['post']->post_parent); else $post = get_adjacent_post($in_same_cat, $excluded_categories, $previous); if ( !$post ) return; $title = $post->post_title; if ( empty($post->post_title) ) $title = $previous ? __('Previous Post') : __('Next Post'); $title = apply_filters('the_title', $title, $post->ID); $date = mysql2date(get_option('date_format'), $post->post_date); $rel = $previous ? 'prev' : 'next'; $string = ''; $link = str_replace('%title', $title, $link); $link = str_replace('%date', $date, $link); $link = $string . $link . ''; $format = str_replace('%link', $link, $format); $adjacent = $previous ? 'previous' : 'next'; echo apply_filters( "{$adjacent}_post_link", $format, $link ); } /** * Retrieve get links for page numbers. * * @since 1.5.0 * * @param int $pagenum Optional. Page ID. * @return string */ function get_pagenum_link($pagenum = 1) { global $wp_rewrite; $pagenum = (int) $pagenum; $request = remove_query_arg( 'paged' ); $home_root = parse_url(home_url()); $home_root = ( isset($home_root['path']) ) ? $home_root['path'] : ''; $home_root = preg_quote( trailingslashit( $home_root ), '|' ); $request = preg_replace('|^'. $home_root . '|', '', $request); $request = preg_replace('|^/+|', '', $request); if ( !$wp_rewrite->using_permalinks() || is_admin() ) { $base = trailingslashit( get_bloginfo( 'url' ) ); if ( $pagenum > 1 ) { $result = add_query_arg( 'paged', $pagenum, $base . $request ); } else { $result = $base . $request; } } else { $qs_regex = '|\?.*?$|'; preg_match( $qs_regex, $request, $qs_match ); if ( !empty( $qs_match[0] ) ) { $query_string = $qs_match[0]; $request = preg_replace( $qs_regex, '', $request ); } else { $query_string = ''; } $request = preg_replace( '|page/\d+/?$|', '', $request); $request = preg_replace( '|^index\.php|', '', $request); $request = ltrim($request, '/'); $base = trailingslashit( get_bloginfo( 'url' ) ); if ( $wp_rewrite->using_index_permalinks() && ( $pagenum > 1 || '' != $request ) ) $base .= 'index.php/'; if ( $pagenum > 1 ) { $request = ( ( !empty( $request ) ) ? trailingslashit( $request ) : $request ) . user_trailingslashit( 'page/' . $pagenum, 'paged' ); } $result = $base . $request . $query_string; } $result = apply_filters('get_pagenum_link', $result); return $result; } /** * Retrieve next posts pages link. * * Backported from 2.1.3 to 2.0.10. * * @since 2.0.10 * * @param int $max_page Optional. Max pages. * @return string */ function get_next_posts_page_link($max_page = 0) { global $paged; if ( !is_single() ) { if ( !$paged ) $paged = 1; $nextpage = intval($paged) + 1; if ( !$max_page || $max_page >= $nextpage ) return get_pagenum_link($nextpage); } } /** * Display or return the next posts pages link. * * @since 0.71 * * @param int $max_page Optional. Max pages. * @param boolean $echo Optional. Echo or return; */ function next_posts( $max_page = 0, $echo = true ) { $output = esc_url( get_next_posts_page_link( $max_page ) ); if ( $echo ) echo $output; else return $output; } /** * Return the next posts pages link. * * @since 2.7.0 * * @param string $label Content for link text. * @param int $max_page Optional. Max pages. * @return string|null */ function get_next_posts_link( $label = 'Next Page »', $max_page = 0 ) { global $paged, $wp_query; if ( !$max_page ) $max_page = $wp_query->max_num_pages; if ( !$paged ) $paged = 1; $nextpage = intval($paged) + 1; if ( !is_single() && ( empty($paged) || $nextpage <= $max_page) ) { $attr = apply_filters( 'next_posts_link_attributes', '' ); return '" . preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $label) . ''; } } /** * Display the next posts pages link. * * @since 0.71 * @uses get_next_posts_link() * * @param string $label Content for link text. * @param int $max_page Optional. Max pages. */ function next_posts_link( $label = 'Next Page »', $max_page = 0 ) { echo get_next_posts_link( $label, $max_page ); } /** * Retrieve previous post pages link. * * Will only return string, if not on a single page or post. * * Backported to 2.0.10 from 2.1.3. * * @since 2.0.10 * * @return string|null */ function get_previous_posts_page_link() { global $paged; if ( !is_single() ) { $nextpage = intval($paged) - 1; if ( $nextpage < 1 ) $nextpage = 1; return get_pagenum_link($nextpage); } } /** * Display or return the previous posts pages link. * * @since 0.71 * * @param boolean $echo Optional. Echo or return; */ function previous_posts( $echo = true ) { $output = esc_url( get_previous_posts_page_link() ); if ( $echo ) echo $output; else return $output; } /** * Return the previous posts pages link. * * @since 2.7.0 * * @param string $label Optional. Previous page link text. * @return string|null */ function get_previous_posts_link( $label = '« Previous Page' ) { global $paged; if ( !is_single() && $paged > 1 ) { $attr = apply_filters( 'previous_posts_link_attributes', '' ); return '". preg_replace( '/&([^#])(?![a-z]{1,8};)/', '&$1', $label ) .''; } } /** * Display the previous posts page link. * * @since 0.71 * @uses get_previous_posts_link() * * @param string $label Optional. Previous page link text. */ function previous_posts_link( $label = '« Previous Page' ) { echo get_previous_posts_link( $label ); } /** * Return post pages link navigation for previous and next pages. * * @since 2.8 * * @param string|array $args Optional args. * @return string The posts link navigation. */ function get_posts_nav_link( $args = array() ) { global $wp_query; $return = ''; if ( !is_singular() ) { $defaults = array( 'sep' => ' — ', 'prelabel' => __('« Previous Page'), 'nxtlabel' => __('Next Page »'), ); $args = wp_parse_args( $args, $defaults ); $max_num_pages = $wp_query->max_num_pages; $paged = get_query_var('paged'); //only have sep if there's both prev and next results if ($paged < 2 || $paged >= $max_num_pages) { $args['sep'] = ''; } if ( $max_num_pages > 1 ) { $return = get_previous_posts_link($args['prelabel']); $return .= preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $args['sep']); $return .= get_next_posts_link($args['nxtlabel']); } } return $return; } /** * Display post pages link navigation for previous and next pages. * * @since 0.71 * * @param string $sep Optional. Separator for posts navigation links. * @param string $prelabel Optional. Label for previous pages. * @param string $nxtlabel Optional Label for next pages. */ function posts_nav_link( $sep = '', $prelabel = '', $nxtlabel = '' ) { $args = array_filter( compact('sep', 'prelabel', 'nxtlabel') ); echo get_posts_nav_link($args); } /** * Retrieve page numbers links. * * @since 2.7.0 * * @param int $pagenum Optional. Page number. * @return string */ function get_comments_pagenum_link( $pagenum = 1, $max_page = 0 ) { global $post, $wp_rewrite; $pagenum = (int) $pagenum; $result = get_permalink( $post->ID ); if ( 'newest' == get_option('default_comments_page') ) { if ( $pagenum != $max_page ) { if ( $wp_rewrite->using_permalinks() ) $result = user_trailingslashit( trailingslashit($result) . 'comment-page-' . $pagenum, 'commentpaged'); else $result = add_query_arg( 'cpage', $pagenum, $result ); } } elseif ( $pagenum > 1 ) { if ( $wp_rewrite->using_permalinks() ) $result = user_trailingslashit( trailingslashit($result) . 'comment-page-' . $pagenum, 'commentpaged'); else $result = add_query_arg( 'cpage', $pagenum, $result ); } $result .= '#comments'; $result = apply_filters('get_comments_pagenum_link', $result); return $result; } /** * Return the link to next comments pages. * * @since 2.7.1 * * @param string $label Optional. Label for link text. * @param int $max_page Optional. Max page. * @return string|null */ function get_next_comments_link( $label = '', $max_page = 0 ) { global $wp_query; if ( !is_singular() || !get_option('page_comments') ) return; $page = get_query_var('cpage'); $nextpage = intval($page) + 1; if ( empty($max_page) ) $max_page = $wp_query->max_num_comment_pages; if ( empty($max_page) ) $max_page = get_comment_pages_count(); if ( $nextpage > $max_page ) return; if ( empty($label) ) $label = __('Newer Comments »'); return ''. preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $label) .''; } /** * Display the link to next comments pages. * * @since 2.7.0 * * @param string $label Optional. Label for link text. * @param int $max_page Optional. Max page. */ function next_comments_link( $label = '', $max_page = 0 ) { echo get_next_comments_link( $label, $max_page ); } /** * Return the previous comments page link. * * @since 2.7.1 * * @param string $label Optional. Label for comments link text. * @return string|null */ function get_previous_comments_link( $label = '' ) { if ( !is_singular() || !get_option('page_comments') ) return; $page = get_query_var('cpage'); if ( intval($page) <= 1 ) return; $prevpage = intval($page) - 1; if ( empty($label) ) $label = __('« Older Comments'); return '' . preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $label) .''; } /** * Display the previous comments page link. * * @since 2.7.0 * * @param string $label Optional. Label for comments link text. */ function previous_comments_link( $label = '' ) { echo get_previous_comments_link( $label ); } /** * Create pagination links for the comments on the current post. * * @see paginate_links() * @since 2.7.0 * * @param string|array $args Optional args. See paginate_links. * @return string Markup for pagination links. */ function paginate_comments_links($args = array()) { global $wp_rewrite; if ( !is_singular() || !get_option('page_comments') ) return; $page = get_query_var('cpage'); if ( !$page ) $page = 1; $max_page = get_comment_pages_count(); $defaults = array( 'base' => add_query_arg( 'cpage', '%#%' ), 'format' => '', 'total' => $max_page, 'current' => $page, 'echo' => true, 'add_fragment' => '#comments' ); if ( $wp_rewrite->using_permalinks() ) $defaults['base'] = user_trailingslashit(trailingslashit(get_permalink()) . 'comment-page-%#%', 'commentpaged'); $args = wp_parse_args( $args, $defaults ); $page_links = paginate_links( $args ); if ( $args['echo'] ) echo $page_links; else return $page_links; } /** * Retrieve shortcut link. * * Use this in 'a' element 'href' attribute. * * @since 2.6.0 * * @return string */ function get_shortcut_link() { $link = "javascript: var d=document, w=window, e=w.getSelection, k=d.getSelection, x=d.selection, s=(e?e():(k)?k():(x?x.createRange().text:0)), f='" . admin_url('press-this.php') . "', l=d.location, e=encodeURIComponent, u=f+'?u='+e(l.href)+'&t='+e(d.title)+'&s='+e(s)+'&v=4'; a=function(){if(!w.open(u,'t','toolbar=0,resizable=1,scrollbars=1,status=1,width=720,height=570'))l.href=u;}; if (/Firefox/.test(navigator.userAgent)) setTimeout(a, 0); else a(); void(0)"; $link = str_replace(array("\r", "\n", "\t"), '', $link); return apply_filters('shortcut_link', $link); } /** * Retrieve the home url for the current site. * * Returns the 'home' option with the appropriate protocol, 'https' if * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is * overridden. * * @package WordPress * @since 3.0.0 * * @uses get_home_url() * * @param string $path (optional) Path relative to the home url. * @param string $scheme (optional) Scheme to give the home url context. Currently 'http','https' * @return string Home url link with optional path appended. */ function home_url( $path = '', $scheme = null ) { return get_home_url(null, $path, $scheme); } /** * Retrieve the home url for a given site. * * Returns the 'home' option with the appropriate protocol, 'https' if * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is * overridden. * * @package WordPress * @since 3.0.0 * * @param int $blog_id (optional) Blog ID. Defaults to current blog. * @param string $path (optional) Path relative to the home url. * @param string $scheme (optional) Scheme to give the home url context. Currently 'http','https' * @return string Home url link with optional path appended. */ function get_home_url( $blog_id = null, $path = '', $scheme = null ) { $orig_scheme = $scheme; if ( !in_array( $scheme, array( 'http', 'https' ) ) ) $scheme = is_ssl() && !is_admin() ? 'https' : 'http'; if ( empty( $blog_id ) || !is_multisite() ) $home = get_option( 'home' ); else $home = get_blog_option( $blog_id, 'home' ); $url = str_replace( 'http://', "$scheme://", $home ); if ( !empty( $path ) && is_string( $path ) && strpos( $path, '..' ) === false ) $url .= '/' . ltrim( $path, '/' ); return apply_filters( 'home_url', $url, $path, $orig_scheme, $blog_id ); } /** * Retrieve the site url for the current site. * * Returns the 'site_url' option with the appropriate protocol, 'https' if * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is * overridden. * * @package WordPress * @since 2.6.0 * * @uses get_site_url() * * @param string $path Optional. Path relative to the site url. * @param string $scheme Optional. Scheme to give the site url context. Currently 'http','https', 'login', 'login_post', or 'admin'. * @return string Site url link with optional path appended. */ function site_url( $path = '', $scheme = null ) { return get_site_url(null, $path, $scheme); } /** * Retrieve the site url for a given site. * * Returns the 'site_url' option with the appropriate protocol, 'https' if * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is * overridden. * * @package WordPress * @since 3.0.0 * * @param int $blog_id (optional) Blog ID. Defaults to current blog. * @param string $path Optional. Path relative to the site url. * @param string $scheme Optional. Scheme to give the site url context. Currently 'http','https', 'login', 'login_post', or 'admin'. * @return string Site url link with optional path appended. */ function get_site_url( $blog_id = null, $path = '', $scheme = null ) { // should the list of allowed schemes be maintained elsewhere? $orig_scheme = $scheme; if ( !in_array( $scheme, array( 'http', 'https' ) ) ) { if ( ( 'login_post' == $scheme || 'rpc' == $scheme ) && ( force_ssl_login() || force_ssl_admin() ) ) $scheme = 'https'; elseif ( ( 'login' == $scheme ) && force_ssl_admin() ) $scheme = 'https'; elseif ( ( 'admin' == $scheme ) && force_ssl_admin() ) $scheme = 'https'; else $scheme = ( is_ssl() ? 'https' : 'http' ); } if ( empty( $blog_id ) || !is_multisite() ) $url = get_option( 'siteurl' ); else $url = get_blog_option( $blog_id, 'siteurl' ); $url = str_replace( 'http://', "{$scheme}://", $url ); if ( !empty( $path ) && is_string( $path ) && strpos( $path, '..' ) === false ) $url .= '/' . ltrim( $path, '/' ); return apply_filters( 'site_url', $url, $path, $orig_scheme, $blog_id ); } /** * Retrieve the url to the admin area for the current site. * * @package WordPress * @since 2.6.0 * * @param string $path Optional path relative to the admin url * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes. * @return string Admin url link with optional path appended */ function admin_url( $path = '', $scheme = 'admin' ) { return get_admin_url(null, $path, $scheme); } /** * Retrieve the url to the admin area for a given site. * * @package WordPress * @since 3.0.0 * * @param int $blog_id (optional) Blog ID. Defaults to current blog. * @param string $path Optional path relative to the admin url * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes. * @return string Admin url link with optional path appended */ function get_admin_url( $blog_id = null, $path = '', $scheme = 'admin' ) { $url = get_site_url($blog_id, 'wp-admin/', $scheme); if ( !empty($path) && is_string($path) && strpos($path, '..') === false ) $url .= ltrim($path, '/'); return apply_filters('admin_url', $url, $path, $blog_id); } /** * Retrieve the url to the includes directory. * * @package WordPress * @since 2.6.0 * * @param string $path Optional. Path relative to the includes url. * @return string Includes url link with optional path appended. */ function includes_url($path = '') { $url = site_url() . '/' . WPINC . '/'; if ( !empty($path) && is_string($path) && strpos($path, '..') === false ) $url .= ltrim($path, '/'); return apply_filters('includes_url', $url, $path); } /** * Retrieve the url to the content directory. * * @package WordPress * @since 2.6.0 * * @param string $path Optional. Path relative to the content url. * @return string Content url link with optional path appended. */ function content_url($path = '') { $url = WP_CONTENT_URL; if ( 0 === strpos($url, 'http') && is_ssl() ) $url = str_replace( 'http://', 'https://', $url ); if ( !empty($path) && is_string($path) && strpos($path, '..') === false ) $url .= '/' . ltrim($path, '/'); return apply_filters('content_url', $url, $path); } /** * Retrieve the url to the plugins directory or to a specific file within that directory. * You can hardcode the plugin slug in $path or pass __FILE__ as a second argument to get the correct folder name. * * @package WordPress * @since 2.6.0 * * @param string $path Optional. Path relative to the plugins url. * @param string $plugin Optional. The plugin file that you want to be relative to - i.e. pass in __FILE__ * @return string Plugins url link with optional path appended. */ function plugins_url($path = '', $plugin = '') { $mu_plugin_dir = WPMU_PLUGIN_DIR; foreach ( array('path', 'plugin', 'mu_plugin_dir') as $var ) { $$var = str_replace('\\' ,'/', $$var); // sanitize for Win32 installs $$var = preg_replace('|/+|', '/', $$var); } if ( !empty($plugin) && 0 === strpos($plugin, $mu_plugin_dir) ) $url = WPMU_PLUGIN_URL; else $url = WP_PLUGIN_URL; if ( 0 === strpos($url, 'http') && is_ssl() ) $url = str_replace( 'http://', 'https://', $url ); if ( !empty($plugin) && is_string($plugin) ) { $folder = dirname(plugin_basename($plugin)); if ( '.' != $folder ) $url .= '/' . ltrim($folder, '/'); } if ( !empty($path) && is_string($path) && strpos($path, '..') === false ) $url .= '/' . ltrim($path, '/'); return apply_filters('plugins_url', $url, $path, $plugin); } /** * Retrieve the site url for the current network. * * Returns the site url with the appropriate protocol, 'https' if * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is * overridden. * * @package WordPress * @since 3.0.0 * * @param string $path Optional. Path relative to the site url. * @param string $scheme Optional. Scheme to give the site url context. Currently 'http','https', 'login', 'login_post', or 'admin'. * @return string Site url link with optional path appended. */ function network_site_url( $path = '', $scheme = null ) { global $current_site; if ( !is_multisite() ) return site_url($path, $scheme); $orig_scheme = $scheme; if ( !in_array($scheme, array('http', 'https')) ) { if ( ( 'login_post' == $scheme || 'rpc' == $scheme ) && ( force_ssl_login() || force_ssl_admin() ) ) $scheme = 'https'; elseif ( ('login' == $scheme) && ( force_ssl_admin() ) ) $scheme = 'https'; elseif ( ('admin' == $scheme) && force_ssl_admin() ) $scheme = 'https'; else $scheme = ( is_ssl() ? 'https' : 'http' ); } $url = 'http://' . $current_site->domain . $current_site->path; $url = str_replace( 'http://', "{$scheme}://", $url ); if ( !empty($path) && is_string($path) && strpos($path, '..') === false ) $url .= ltrim($path, '/'); return apply_filters('network_site_url', $url, $path, $orig_scheme); } /** * Retrieve the home url for the current network. * * Returns the home url with the appropriate protocol, 'https' if * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is * overridden. * * @package WordPress * @since 3.0.0 * * @param string $path (optional) Path relative to the home url. * @param string $scheme (optional) Scheme to give the home url context. Currently 'http','https' * @return string Home url link with optional path appended. */ function network_home_url( $path = '', $scheme = null ) { global $current_site; if ( !is_multisite() ) return home_url($path, $scheme); $orig_scheme = $scheme; if ( !in_array($scheme, array('http', 'https')) ) $scheme = is_ssl() && !is_admin() ? 'https' : 'http'; $url = 'http://' . $current_site->domain . $current_site->path; $url = str_replace( 'http://', "$scheme://", $url ); if ( !empty( $path ) && is_string( $path ) && strpos( $path, '..' ) === false ) $url .= ltrim( $path, '/' ); return apply_filters( 'network_home_url', $url, $path, $orig_scheme); } /** * Retrieve the url to the admin area for the network. * * @package WordPress * @since 3.0.0 * * @param string $path Optional path relative to the admin url * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes. * @return string Admin url link with optional path appended */ function network_admin_url( $path = '', $scheme = 'admin' ) { $url = network_site_url('wp-admin/', $scheme); if ( !empty($path) && is_string($path) && strpos($path, '..') === false ) $url .= ltrim($path, '/'); return apply_filters('network_admin_url', $url, $path); } /** * Output rel=canonical for singular queries * * @package WordPress * @since 2.9.0 */ function rel_canonical() { if ( !is_singular() ) return; global $wp_the_query; if ( !$id = $wp_the_query->get_queried_object_id() ) return; $link = get_permalink( $id ); echo "\n"; } /** * Return a shortlink for a post, page, attachment, or blog. * * This function exists to provide a shortlink tag that all themes and plugins can target. A plugin must hook in to * provide the actual shortlinks. Default shortlink support is limited to providing ?p= style links for posts. * Plugins can short circuit this function via the pre_get_shortlink filter or filter the output * via the get_shortlink filter. * * @since 3.0.0. * * @param int $id A post or blog id. Default is 0, which means the current post or blog. * @param string $contex Whether the id is a 'blog' id, 'post' id, or 'media' id. If 'post', the post_type of the post is consulted. If 'query', the current query is consulted to determine the id and context. Default is 'post'. * @param bool $allow_slugs Whether to allow post slugs in the shortlink. It is up to the plugin how and whether to honor this. * @return string A shortlink or an empty string if no shortlink exists for the requested resource or if shortlinks are not enabled. */ function wp_get_shortlink($id = 0, $context = 'post', $allow_slugs = true) { // Allow plugins to short-circuit this function. $shortlink = apply_filters('pre_get_shortlink', false, $id, $context, $allow_slugs); if ( false !== $shortlink ) return $shortlink; global $wp_query; $post_id = 0; if ( 'query' == $context && is_single() ) { $post_id = $wp_query->get_queried_object_id(); } elseif ( 'post' == $context ) { $post = get_post($id); $post_id = $post->ID; } $shortlink = ''; // Return p= link for posts. if ( !empty($post_id) && '' != get_option('permalink_structure') ) { $post = get_post($post_id); if ( isset($post->post_type) && 'post' == $post->post_type ) $shortlink = home_url('?p=' . $post->ID); } return apply_filters('get_shortlink', $shortlink, $id, $context, $allow_slugs); } /** * Inject rel=sortlink into head if a shortlink is defined for the current page. * * Attached to the wp_head action. * * @since 3.0.0 * * @uses wp_get_shortlink() */ function wp_shortlink_wp_head() { $shortlink = wp_get_shortlink( 0, 'query' ); if ( empty( $shortlink ) ) return; echo "\n"; } /** * Send a Link: rel=shortlink header if a shortlink is defined for the current page. * * Attached to the wp action. * * @since 3.0.0 * * @uses wp_get_shortlink() */ function wp_shortlink_header() { if ( headers_sent() ) return; $shortlink = wp_get_shortlink(0, 'query'); if ( empty($shortlink) ) return; header('Link: <' . $shortlink . '>; rel=shortlink', false); } /** * Display the Short Link for a Post * * Must be called from inside "The Loop" * * Call like the_shortlink(__('Shortlinkage FTW')) * * @since 3.0.0 * * @param string $text Optional The link text or HTML to be displayed. Defaults to 'This is the short link.' * @param string $title Optional The tooltip for the link. Must be sanitized. Defaults to the sanitized post title. * @param string $before Optional HTML to display before the link. * @param string $before Optional HTML to display after the link. */ function the_shortlink( $text = '', $title = '', $before = '', $after = '' ) { global $post; if ( empty( $text ) ) $text = __('This is the short link.'); if ( empty( $title ) ) $title = the_title_attribute( array( 'echo' => FALSE ) ); $shortlink = wp_get_shortlink( $post->ID ); if ( !empty( $shortlink ) ) { $link = '' . $text . ''; $link = apply_filters( 'the_shortlink', $link, $shortlink, $text, $title ); echo $before, $link, $after; } } ?> guments. Something to ponder at least. * * @param string $url URI resource. * @param str|array $args Optional. Override the defaults. * @return array containing 'headers', 'body', 'response', 'cookies' */ function request( $url, $args = array() ) { global $wp_version; $defaults = array( 'method' => 'GET', 'timeout' => apply_filters( 'http_request_timeout', 5), 'redirection' => apply_filters( 'http_request_redirection_count', 5), 'httpversion' => apply_filters( 'http_request_version', '1.0'), 'user-agent' => apply_filters( 'http_headers_useragent', 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' ) ), 'blocking' => true, 'headers' => array(), 'cookies' => array(), 'body' => null, 'compress' => false, 'decompress' => true, 'sslverify' => true ); $r = wp_parse_args( $args, $defaults ); $r = apply_filters( 'http_request_args', $r, $url ); // Allow plugins to short-circuit the request $pre = apply_filters( 'pre_http_request', false, $r, $url ); if ( false !== $pre ) return $pre; $arrURL = parse_url($url); if ( empty( $url ) || empty( $arrURL['scheme'] ) ) return new WP_Error('http_request_failed', __('A valid URL was not provided.')); if ( $this->block_request( $url ) ) return new WP_Error('http_request_failed', __('User has blocked requests through HTTP.')); // Determine if this is a https call and pass that on to the transport functions // so that we can blacklist the transports that do not support ssl verification $r['ssl'] = $arrURL['scheme'] == 'https' || $arrURL['scheme'] == 'ssl'; // Determine if this request is to OUR install of WordPress $homeURL = parse_url( get_bloginfo('url') ); $r['local'] = $homeURL['host'] == $arrURL['host'] || 'localhost' == $arrURL['host']; unset($homeURL); if ( is_null( $r['headers'] ) ) $r['headers'] = array(); if ( ! is_array($r['headers']) ) { $processedHeaders = WP_Http::processHeaders($r['headers']); $r['headers'] = $processedHeaders['headers']; } if ( isset($r['headers']['User-Agent']) ) { $r['user-agent'] = $r['headers']['User-Agent']; unset($r['headers']['User-Agent']); } if ( isset($r['headers']['user-agent']) ) { $r['user-agent'] = $r['headers']['user-agent']; unset($r['headers']['user-agent']); } // Construct Cookie: header if any cookies are set WP_Http::buildCookieHeader( $r ); if ( WP_Http_Encoding::is_available() ) $r['headers']['Accept-Encoding'] = WP_Http_Encoding::accept_encoding(); if ( empty($r['body']) ) { // Some servers fail when sending content without the content-length header being set. // Also, to fix another bug, we only send when doing POST and PUT and the content-length // header isn't already set. if( ($r['method'] == 'POST' || $r['method'] == 'PUT') && ! isset($r['headers']['Content-Length']) ) $r['headers']['Content-Length'] = 0; // The method is ambiguous, because we aren't talking about HTTP methods, the "get" in // this case is simply that we aren't sending any bodies and to get the transports that // don't support sending bodies along with those which do. $transports = WP_Http::_getTransport($r); } else { if ( is_array( $r['body'] ) || is_object( $r['body'] ) ) { if ( ! version_compare(phpversion(), '5.1.2', '>=') ) $r['body'] = _http_build_query($r['body'], null, '&'); else $r['body'] = http_build_query($r['body'], null, '&'); $r['headers']['Content-Type'] = 'application/x-www-form-urlencoded; charset=' . get_option('blog_charset'); $r['headers']['Content-Length'] = strlen($r['body']); } if ( ! isset( $r['headers']['Content-Length'] ) && ! isset( $r['headers']['content-length'] ) ) $r['headers']['Content-Length'] = strlen($r['body']); // The method is ambiguous, because we aren't talking about HTTP methods, the "post" in // this case is simply that we are sending HTTP body and to get the transports that do // support sending the body. Not all do, depending on the limitations of the PHP core // limitations. $transports = WP_Http::_postTransport($r); } do_action( 'http_api_debug', $transports, 'transports_list' ); $response = array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() ); foreach ( (array) $transports as $transport ) { $response = $transport->request($url, $r); do_action( 'http_api_debug', $response, 'response', get_class($transport) ); if ( ! is_wp_error($response) ) return apply_filters( 'http_response', $response, $r, $url ); } return $response; } /** * Uses the POST HTTP method. * * Used for sending data that is expected to be in the body. * * @access public * @since 2.7.0 * * @param string $url URI resource. * @param str|array $args Optional. Override the defaults. * @return boolean */ function post($url, $args = array()) { $defaults = array('method' => 'POST'); $r = wp_parse_args( $args, $defaults ); return $this->request($url, $r); } /** * Uses the GET HTTP method. * * Used for sending data that is expected to be in the body. * * @access public * @since 2.7.0 * * @param string $url URI resource. * @param str|array $args Optional. Override the defaults. * @return boolean */ function get($url, $args = array()) { $defaults = array('method' => 'GET'); $r = wp_parse_args( $args, $defaults ); return $this->request($url, $r); } /** * Uses the HEAD HTTP method. * * Used for sending data that is expected to be in the body. * * @access public * @since 2.7.0 * * @param string $url URI resource. * @param str|array $args Optional. Override the defaults. * @return boolean */ function head($url, $args = array()) { $defaults = array('method' => 'HEAD'); $r = wp_parse_args( $args, $defaults ); return $this->request($url, $r); } /** * Parses the responses and splits the parts into headers and body. * * @access public * @static * @since 2.7.0 * * @param string $strResponse The full response string * @return array Array with 'headers' and 'body' keys. */ function processResponse($strResponse) { $res = explode("\r\n\r\n", $strResponse, 2); return array('headers' => isset($res[0]) ? $res[0] : array(), 'body' => isset($res[1]) ? $res[1] : ''); } /** * Transform header string into an array. * * If an array is given then it is assumed to be raw header data with numeric keys with the * headers as the values. No headers must be passed that were already processed. * * @access public * @static * @since 2.7.0 * * @param string|array $headers * @return array Processed string headers. If duplicate headers are encountered, * Then a numbered array is returned as the value of that header-key. */ function processHeaders($headers) { // split headers, one per array element if ( is_string($headers) ) { // tolerate line terminator: CRLF = LF (RFC 2616 19.3) $headers = str_replace("\r\n", "\n", $headers); // unfold folded header fields. LWS = [CRLF] 1*( SP | HT ) , (RFC 2616 2.2) $headers = preg_replace('/\n[ \t]/', ' ', $headers); // create the headers array $headers = explode("\n", $headers); } $response = array('code' => 0, 'message' => ''); // If a redirection has taken place, The headers for each page request may have been passed. // In this case, determine the final HTTP header and parse from there. for ( $i = count($headers)-1; $i >= 0; $i-- ) { if ( !empty($headers[$i]) && false === strpos($headers[$i], ':') ) { $headers = array_splice($headers, $i); break; } } $cookies = array(); $newheaders = array(); foreach ( $headers as $tempheader ) { if ( empty($tempheader) ) continue; if ( false === strpos($tempheader, ':') ) { list( , $response['code'], $response['message']) = explode(' ', $tempheader, 3); continue; } list($key, $value) = explode(':', $tempheader, 2); if ( !empty( $value ) ) { $key = strtolower( $key ); if ( isset( $newheaders[$key] ) ) { if ( !is_array($newheaders[$key]) ) $newheaders[$key] = array($newheaders[$key]); $newheaders[$key][] = trim( $value ); } else { $newheaders[$key] = trim( $value ); } if ( 'set-cookie' == strtolower( $key ) ) $cookies[] = new WP_Http_Cookie( $value ); } } return array('response' => $response, 'headers' => $newheaders, 'cookies' => $cookies); } /** * Takes the arguments for a ::request() and checks for the cookie array. * * If it's found, then it's assumed to contain WP_Http_Cookie objects, which are each parsed * into strings and added to the Cookie: header (within the arguments array). Edits the array by * reference. * * @access public * @version 2.8.0 * @static * * @param array $r Full array of args passed into ::request() */ function buildCookieHeader( &$r ) { if ( ! empty($r['cookies']) ) { $cookies_header = ''; foreach ( (array) $r['cookies'] as $cookie ) { $cookies_header .= $cookie->getHeaderValue() . '; '; } $cookies_header = substr( $cookies_header, 0, -2 ); $r['headers']['cookie'] = $cookies_header; } } /** * Decodes chunk transfer-encoding, based off the HTTP 1.1 specification. * * Based off the HTTP http_encoding_dechunk function. Does not support UTF-8. Does not support * returning footer headers. Shouldn't be too difficult to support it though. * * @todo Add support for footer chunked headers. * @access public * @since 2.7.0 * @static * * @param string $body Body content * @return string Chunked decoded body on success or raw body on failure. */ function chunkTransferDecode($body) { $body = str_replace(array("\r\n", "\r"), "\n", $body); // The body is not chunked encoding or is malformed. if ( ! preg_match( '/^[0-9a-f]+(\s|\n)+/mi', trim($body) ) ) return $body; $parsedBody = ''; //$parsedHeaders = array(); Unsupported while ( true ) { $hasChunk = (bool) preg_match( '/^([0-9a-f]+)(\s|\n)+/mi', $body, $match ); if ( $hasChunk ) { if ( empty( $match[1] ) ) return $body; $length = hexdec( $match[1] ); $chunkLength = strlen( $match[0] ); $strBody = substr($body, $chunkLength, $length); $parsedBody .= $strBody; $body = ltrim(str_replace(array($match[0], $strBody), '', $body), "\n"); if ( "0" == trim($body) ) return $parsedBody; // Ignore footer headers. } else { return $body; } } } /** * Block requests through the proxy. * * Those who are behind a proxy and want to prevent access to certain hosts may do so. This will * prevent plugins from working and core functionality, if you don't include api.wordpress.org. * * You block external URL requests by defining WP_HTTP_BLOCK_EXTERNAL as true in your wp-config.php * file and this will only allow localhost and your blog to make requests. The constant * WP_ACCESSIBLE_HOSTS will allow additional hosts to go through for requests. The format of the * WP_ACCESSIBLE_HOSTS constant is a comma separated list of hostnames to allow. * * @since 2.8.0 * @link http://core.trac.wordpress.org/ticket/8927 Allow preventing external requests. * * @param string $uri URI of url. * @return bool True to block, false to allow. */ function block_request($uri) { // We don't need to block requests, because nothing is blocked. if ( ! defined( 'WP_HTTP_BLOCK_EXTERNAL' ) || ! WP_HTTP_BLOCK_EXTERNAL ) return false; // parse_url() only handles http, https type URLs, and will emit E_WARNING on failure. // This will be displayed on blogs, which is not reasonable. $check = @parse_url($uri); /* Malformed URL, can not process, but this could mean ssl, so let through anyway. * * This isn't very security sound. There are instances where a hacker might attempt * to bypass the proxy and this check. However, the reason for this behavior is that * WordPress does not do any checking currently for non-proxy requests, so it is keeps with * the default unsecure nature of the HTTP request. */ if ( $check === false ) return false; $home = parse_url( get_option('siteurl') ); // Don't block requests back to ourselves by default if ( $check['host'] == 'localhost' || $check['host'] == $home['host'] ) return apply_filters('block_local_requests', false); if ( !defined('WP_ACCESSIBLE_HOSTS') ) return true; static $accessible_hosts; if ( null == $accessible_hosts ) $accessible_hosts = preg_split('|,\s*|', WP_ACCESSIBLE_HOSTS); return !in_array( $check['host'], $accessible_hosts ); //Inverse logic, If its in the array, then we can't access it. } } /** * HTTP request method uses fsockopen function to retrieve the url. * * This would be the preferred method, but the fsockopen implementation has the most overhead of all * the HTTP transport implementations. * * @package WordPress * @subpackage HTTP * @since 2.7.0 */ class WP_Http_Fsockopen { /** * Send a HTTP request to a URI using fsockopen(). * * Does not support non-blocking mode. * * @see WP_Http::request For default options descriptions. * * @since 2.7 * @access public * @param string $url URI resource. * @param str|array $args Optional. Override the defaults. * @return array 'headers', 'body', 'cookies' and 'response' keys. */ function request($url, $args = array()) { $defaults = array( 'method' => 'GET', 'timeout' => 5, 'redirection' => 5, 'httpversion' => '1.0', 'blocking' => true, 'headers' => array(), 'body' => null, 'cookies' => array() ); $r = wp_parse_args( $args, $defaults ); if ( isset($r['headers']['User-Agent']) ) { $r['user-agent'] = $r['headers']['User-Agent']; unset($r['headers']['User-Agent']); } else if( isset($r['headers']['user-agent']) ) { $r['user-agent'] = $r['headers']['user-agent']; unset($r['headers']['user-agent']); } // Construct Cookie: header if any cookies are set WP_Http::buildCookieHeader( $r ); $iError = null; // Store error number $strError = null; // Store error string $arrURL = parse_url($url); $fsockopen_host = $arrURL['host']; $secure_transport = false; if ( ! isset( $arrURL['port'] ) ) { if ( ( $arrURL['scheme'] == 'ssl' || $arrURL['scheme'] == 'https' ) && extension_loaded('openssl') ) { $fsockopen_host = "ssl://$fsockopen_host"; $arrURL['port'] = 443; $secure_transport = true; } else { $arrURL['port'] = 80; } } //fsockopen has issues with 'localhost' with IPv6 with certain versions of PHP, It attempts to connect to ::1, // which fails when the server is not set up for it. For compatibility, always connect to the IPv4 address. if ( 'localhost' == strtolower($fsockopen_host) ) $fsockopen_host = '127.0.0.1'; // There are issues with the HTTPS and SSL protocols that cause errors that can be safely // ignored and should be ignored. if ( true === $secure_transport ) $error_reporting = error_reporting(0); $startDelay = time(); $proxy = new WP_HTTP_Proxy(); if ( !WP_DEBUG ) { if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) $handle = @fsockopen( $proxy->host(), $proxy->port(), $iError, $strError, $r['timeout'] ); else $handle = @fsockopen( $fsockopen_host, $arrURL['port'], $iError, $strError, $r['timeout'] ); } else { if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) $handle = fsockopen( $proxy->host(), $proxy->port(), $iError, $strError, $r['timeout'] ); else $handle = fsockopen( $fsockopen_host, $arrURL['port'], $iError, $strError, $r['timeout'] ); } $endDelay = time(); // If the delay is greater than the timeout then fsockopen should't be used, because it will // cause a long delay. $elapseDelay = ($endDelay-$startDelay) > $r['timeout']; if ( true === $elapseDelay ) add_option( 'disable_fsockopen', $endDelay, null, true ); if ( false === $handle ) return new WP_Error('http_request_failed', $iError . ': ' . $strError); $timeout = (int) floor( $r['timeout'] ); $utimeout = $timeout == $r['timeout'] ? 0 : 1000000 * $r['timeout'] % 1000000; stream_set_timeout( $handle, $timeout, $utimeout ); if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) //Some proxies require full URL in this field. $requestPath = $url; else $requestPath = $arrURL['path'] . ( isset($arrURL['query']) ? '?' . $arrURL['query'] : '' ); if ( empty($requestPath) ) $requestPath .= '/'; $strHeaders = strtoupper($r['method']) . ' ' . $requestPath . ' HTTP/' . $r['httpversion'] . "\r\n"; if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) $strHeaders .= 'Host: ' . $arrURL['host'] . ':' . $arrURL['port'] . "\r\n"; else $strHeaders .= 'Host: ' . $arrURL['host'] . "\r\n"; if ( isset($r['user-agent']) ) $strHeaders .= 'User-agent: ' . $r['user-agent'] . "\r\n"; if ( is_array($r['headers']) ) { foreach ( (array) $r['headers'] as $header => $headerValue ) $strHeaders .= $header . ': ' . $headerValue . "\r\n"; } else { $strHeaders .= $r['headers']; } if ( $proxy->use_authentication() ) $strHeaders .= $proxy->authentication_header() . "\r\n"; $strHeaders .= "\r\n"; if ( ! is_null($r['body']) ) $strHeaders .= $r['body']; fwrite($handle, $strHeaders); if ( ! $r['blocking'] ) { fclose($handle); return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() ); } $strResponse = ''; while ( ! feof($handle) ) $strResponse .= fread($handle, 4096); fclose($handle); if ( true === $secure_transport ) error_reporting($error_reporting); $process = WP_Http::processResponse($strResponse); $arrHeaders = WP_Http::processHeaders($process['headers']); // Is the response code within the 400 range? if ( (int) $arrHeaders['response']['code'] >= 400 && (int) $arrHeaders['response']['code'] < 500 ) return new WP_Error('http_request_failed', $arrHeaders['response']['code'] . ': ' . $arrHeaders['response']['message']); // If location is found, then assume redirect and redirect to location. if ( 'HEAD' != $r['method'] && isset($arrHeaders['headers']['location']) ) { if ( $r['redirection']-- > 0 ) { return $this->request($arrHeaders['headers']['location'], $r); } else { return new WP_Error('http_request_failed', __('Too many redirects.')); } } // If the body was chunk encoded, then decode it. if ( ! empty( $process['body'] ) && isset( $arrHeaders['headers']['transfer-encoding'] ) && 'chunked' == $arrHeaders['headers']['transfer-encoding'] ) $process['body'] = WP_Http::chunkTransferDecode($process['body']); if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($arrHeaders['headers']) ) $process['body'] = WP_Http_Encoding::decompress( $process['body'] ); return array('headers' => $arrHeaders['headers'], 'body' => $process['body'], 'response' => $arrHeaders['response'], 'cookies' => $arrHeaders['cookies']); } /** * Whether this class can be used for retrieving an URL. * * @since 2.7.0 * @static * @return boolean False means this class can not be used, true means it can. */ function test( $args = array() ) { if ( false !== ($option = get_option( 'disable_fsockopen' )) && time()-$option < 43200 ) // 12 hours return false; $is_ssl = isset($args['ssl']) && $args['ssl']; if ( ! $is_ssl && function_exists( 'fsockopen' ) ) $use = true; elseif ( $is_ssl && extension_loaded('openssl') && function_exists( 'fsockopen' ) ) $use = true; else $use = false; return apply_filters('use_fsockopen_transport', $use, $args); } } /** * HTTP request method uses fopen function to retrieve the url. * * Requires PHP version greater than 4.3.0 for stream support. Does not allow for $context support, * but should still be okay, to write the headers, before getting the response. Also requires that * 'allow_url_fopen' to be enabled. * * @package WordPress * @subpackage HTTP * @since 2.7.0 */ class WP_Http_Fopen { /** * Send a HTTP request to a URI using fopen(). * * This transport does not support sending of headers and body, therefore should not be used in * the instances, where there is a body and headers. * * Notes: Does not support non-blocking mode. Ignores 'redirection' option. * * @see WP_Http::retrieve For default options descriptions. * * @access public * @since 2.7.0 * * @param string $url URI resource. * @param str|array $args Optional. Override the defaults. * @return array 'headers', 'body', 'cookies' and 'response' keys. */ function request($url, $args = array()) { $defaults = array( 'method' => 'GET', 'timeout' => 5, 'redirection' => 5, 'httpversion' => '1.0', 'blocking' => true, 'headers' => array(), 'body' => null, 'cookies' => array() ); $r = wp_parse_args( $args, $defaults ); $arrURL = parse_url($url); if ( false === $arrURL ) return new WP_Error('http_request_failed', sprintf(__('Malformed URL: %s'), $url)); if ( 'http' != $arrURL['scheme'] && 'https' != $arrURL['scheme'] ) $url = str_replace($arrURL['scheme'], 'http', $url); if ( is_null( $r['headers'] ) ) $r['headers'] = array(); if ( is_string($r['headers']) ) { $processedHeaders = WP_Http::processHeaders($r['headers']); $r['headers'] = $processedHeaders['headers']; } $initial_user_agent = ini_get('user_agent'); if ( !empty($r['headers']) && is_array($r['headers']) ) { $user_agent_extra_headers = ''; foreach ( $r['headers'] as $header => $value ) $user_agent_extra_headers .= "\r\n$header: $value"; @ini_set('user_agent', $r['user-agent'] . $user_agent_extra_headers); } else { @ini_set('user_agent', $r['user-agent']); } if ( !WP_DEBUG ) $handle = @fopen($url, 'r'); else $handle = fopen($url, 'r'); if (! $handle) return new WP_Error('http_request_failed', sprintf(__('Could not open handle for fopen() to %s'), $url)); $timeout = (int) floor( $r['timeout'] ); $utimeout = $timeout == $r['timeout'] ? 0 : 1000000 * $r['timeout'] % 1000000; stream_set_timeout( $handle, $timeout, $utimeout ); if ( ! $r['blocking'] ) { fclose($handle); @ini_set('user_agent', $initial_user_agent); //Clean up any extra headers added return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() ); } $strResponse = ''; while ( ! feof($handle) ) $strResponse .= fread($handle, 4096); if ( function_exists('stream_get_meta_data') ) { $meta = stream_get_meta_data($handle); $theHeaders = $meta['wrapper_data']; if ( isset( $meta['wrapper_data']['headers'] ) ) $theHeaders = $meta['wrapper_data']['headers']; } else { //$http_response_header is a PHP reserved variable which is set in the current-scope when using the HTTP Wrapper //see http://php.oregonstate.edu/manual/en/reserved.variables.httpresponseheader.php $theHeaders = $http_response_header; } fclose($handle); @ini_set('user_agent', $initial_user_agent); //Clean up any extra headers added $processedHeaders = WP_Http::processHeaders($theHeaders); if ( ! empty( $strResponse ) && isset( $processedHeaders['headers']['transfer-encoding'] ) && 'chunked' == $processedHeaders['headers']['transfer-encoding'] ) $strResponse = WP_Http::chunkTransferDecode($strResponse); if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($processedHeaders['headers']) ) $strResponse = WP_Http_Encoding::decompress( $strResponse ); return array('headers' => $processedHeaders['headers'], 'body' => $strResponse, 'response' => $processedHeaders['response'], 'cookies' => $processedHeaders['cookies']); } /** * Whether this class can be used for retrieving an URL. * * @since 2.7.0 * @static * @return boolean False means this class can not be used, true means it can. */ function test($args = array()) { if ( ! function_exists('fopen') || (function_exists('ini_get') && true != ini_get('allow_url_fopen')) ) return false; if ( isset($args['method']) && 'HEAD' == $args['method'] ) //This transport cannot make a HEAD request return false; $use = true; //PHP does not verify SSL certs, We can only make a request via this transports if SSL Verification is turned off. $is_ssl = isset($args['ssl']) && $args['ssl']; if ( $is_ssl ) { $is_local = isset($args['local']) && $args['local']; $ssl_verify = isset($args['sslverify']) && $args['sslverify']; if ( $is_local && true != apply_filters('https_local_ssl_verify', true) ) $use = true; elseif ( !$is_local && true != apply_filters('https_ssl_verify', true) ) $use = true; elseif ( !$ssl_verify ) $use = true; else $use = false; } return apply_filters('use_fopen_transport', $use, $args); } } /** * HTTP request method uses Streams to retrieve the url. * * Requires PHP 5.0+ and uses fopen with stream context. Requires that 'allow_url_fopen' PHP setting * to be enabled. * * Second preferred method for getting the URL, for PHP 5. * * @package WordPress * @subpackage HTTP * @since 2.7.0 */ class WP_Http_Streams { /** * Send a HTTP request to a URI using streams with fopen(). * * @access public * @since 2.7.0 * * @param string $url * @param str|array $args Optional. Override the defaults. * @return array 'headers', 'body', 'cookies' and 'response' keys. */ function request($url, $args = array()) { $defaults = array( 'method' => 'GET', 'timeout' => 5, 'redirection' => 5, 'httpversion' => '1.0', 'blocking' => true, 'headers' => array(), 'body' => null, 'cookies' => array() ); $r = wp_parse_args( $args, $defaults ); if ( isset($r['headers']['User-Agent']) ) { $r['user-agent'] = $r['headers']['User-Agent']; unset($r['headers']['User-Agent']); } else if( isset($r['headers']['user-agent']) ) { $r['user-agent'] = $r['headers']['user-agent']; unset($r['headers']['user-agent']); } // Construct Cookie: header if any cookies are set WP_Http::buildCookieHeader( $r ); $arrURL = parse_url($url); if ( false === $arrURL ) return new WP_Error('http_request_failed', sprintf(__('Malformed URL: %s'), $url)); if ( 'http' != $arrURL['scheme'] && 'https' != $arrURL['scheme'] ) $url = preg_replace('|^' . preg_quote($arrURL['scheme'], '|') . '|', 'http', $url); // Convert Header array to string. $strHeaders = ''; if ( is_array( $r['headers'] ) ) foreach ( $r['headers'] as $name => $value ) $strHeaders .= "{$name}: $value\r\n"; else if ( is_string( $r['headers'] ) ) $strHeaders = $r['headers']; $is_local = isset($args['local']) && $args['local']; $ssl_verify = isset($args['sslverify']) && $args['sslverify']; if ( $is_local ) $ssl_verify = apply_filters('https_local_ssl_verify', $ssl_verify); elseif ( ! $is_local ) $ssl_verify = apply_filters('https_ssl_verify', $ssl_verify); $arrContext = array('http' => array( 'method' => strtoupper($r['method']), 'user_agent' => $r['user-agent'], 'max_redirects' => $r['redirection'] + 1, // See #11557 'protocol_version' => (float) $r['httpversion'], 'header' => $strHeaders, 'ignore_errors' => true, // Return non-200 requests. 'timeout' => $r['timeout'], 'ssl' => array( 'verify_peer' => $ssl_verify, 'verify_host' => $ssl_verify ) ) ); $proxy = new WP_HTTP_Proxy(); if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) { $arrContext['http']['proxy'] = 'tcp://' . $proxy->host() . ':' . $proxy->port(); $arrContext['http']['request_fulluri'] = true; // We only support Basic authentication so this will only work if that is what your proxy supports. if ( $proxy->use_authentication() ) $arrContext['http']['header'] .= $proxy->authentication_header() . "\r\n"; } if ( 'HEAD' == $r['method'] ) // Disable redirects for HEAD requests $arrContext['http']['max_redirects'] = 1; if ( ! empty($r['body'] ) ) $arrContext['http']['content'] = $r['body']; $context = stream_context_create($arrContext); if ( !WP_DEBUG ) $handle = @fopen($url, 'r', false, $context); else $handle = fopen($url, 'r', false, $context); if ( ! $handle ) return new WP_Error('http_request_failed', sprintf(__('Could not open handle for fopen() to %s'), $url)); $timeout = (int) floor( $r['timeout'] ); $utimeout = $timeout == $r['timeout'] ? 0 : 1000000 * $r['timeout'] % 1000000; stream_set_timeout( $handle, $timeout, $utimeout ); if ( ! $r['blocking'] ) { stream_set_blocking($handle, 0); fclose($handle); return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() ); } $strResponse = stream_get_contents($handle); $meta = stream_get_meta_data($handle); fclose($handle); $processedHeaders = array(); if ( isset( $meta['wrapper_data']['headers'] ) ) $processedHeaders = WP_Http::processHeaders($meta['wrapper_data']['headers']); else $processedHeaders = WP_Http::processHeaders($meta['wrapper_data']); if ( ! empty( $strResponse ) && isset( $processedHeaders['headers']['transfer-encoding'] ) && 'chunked' == $processedHeaders['headers']['transfer-encoding'] ) $strResponse = WP_Http::chunkTransferDecode($strResponse); if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($processedHeaders['headers']) ) $strResponse = WP_Http_Encoding::decompress( $strResponse ); return array('headers' => $processedHeaders['headers'], 'body' => $strResponse, 'response' => $processedHeaders['response'], 'cookies' => $processedHeaders['cookies']); } /** * Whether this class can be used for retrieving an URL. * * @static * @access public * @since 2.7.0 * * @return boolean False means this class can not be used, true means it can. */ function test($args = array()) { if ( ! function_exists('fopen') || (function_exists('ini_get') && true != ini_get('allow_url_fopen')) ) return false; if ( version_compare(PHP_VERSION, '5.0', '<') ) return false; //HTTPS via Proxy was added in 5.1.0 $is_ssl = isset($args['ssl']) && $args['ssl']; if ( $is_ssl && version_compare(PHP_VERSION, '5.1.0', '<') ) { $proxy = new WP_HTTP_Proxy(); /** * No URL check, as its not currently passed to the ::test() function * In the case where a Proxy is in use, Just bypass this transport for HTTPS. */ if ( $proxy->is_enabled() ) return false; } return apply_filters('use_streams_transport', true, $args); } } /** * HTTP request method uses HTTP extension to retrieve the url. * * Requires the HTTP extension to be installed. This would be the preferred transport since it can * handle a lot of the problems that forces the others to use the HTTP version 1.0. Even if PHP 5.2+ * is being used, it doesn't mean that the HTTP extension will be enabled. * * @package WordPress * @subpackage HTTP * @since 2.7.0 */ class WP_Http_ExtHTTP { /** * Send a HTTP request to a URI using HTTP extension. * * Does not support non-blocking. * * @access public * @since 2.7 * * @param string $url * @param str|array $args Optional. Override the defaults. * @return array 'headers', 'body', 'cookies' and 'response' keys. */ function request($url, $args = array()) { $defaults = array( 'method' => 'GET', 'timeout' => 5, 'redirection' => 5, 'httpversion' => '1.0', 'blocking' => true, 'headers' => array(), 'body' => null, 'cookies' => array() ); $r = wp_parse_args( $args, $defaults ); if ( isset($r['headers']['User-Agent']) ) { $r['user-agent'] = $r['headers']['User-Agent']; unset($r['headers']['User-Agent']); } else if( isset($r['headers']['user-agent']) ) { $r['user-agent'] = $r['headers']['user-agent']; unset($r['headers']['user-agent']); } // Construct Cookie: header if any cookies are set WP_Http::buildCookieHeader( $r ); switch ( $r['method'] ) { case 'POST': $r['method'] = HTTP_METH_POST; break; case 'HEAD': $r['method'] = HTTP_METH_HEAD; break; case 'PUT': $r['method'] = HTTP_METH_PUT; break; case 'GET': default: $r['method'] = HTTP_METH_GET; } $arrURL = parse_url($url); if ( 'http' != $arrURL['scheme'] && 'https' != $arrURL['scheme'] ) $url = preg_replace('|^' . preg_quote($arrURL['scheme'], '|') . '|', 'http', $url); $is_local = isset($args['local']) && $args['local']; $ssl_verify = isset($args['sslverify']) && $args['sslverify']; if ( $is_local ) $ssl_verify = apply_filters('https_local_ssl_verify', $ssl_verify); elseif ( ! $is_local ) $ssl_verify = apply_filters('https_ssl_verify', $ssl_verify); $r['timeout'] = (int) ceil( $r['timeout'] ); $options = array( 'timeout' => $r['timeout'], 'connecttimeout' => $r['timeout'], 'redirect' => $r['redirection'], 'useragent' => $r['user-agent'], 'headers' => $r['headers'], 'ssl' => array( 'verifypeer' => $ssl_verify, 'verifyhost' => $ssl_verify ) ); if ( HTTP_METH_HEAD == $r['method'] ) $options['redirect'] = 0; // Assumption: Docs seem to suggest that this means do not follow. Untested. // The HTTP extensions offers really easy proxy support. $proxy = new WP_HTTP_Proxy(); if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) { $options['proxyhost'] = $proxy->host(); $options['proxyport'] = $proxy->port(); $options['proxytype'] = HTTP_PROXY_HTTP; if ( $proxy->use_authentication() ) { $options['proxyauth'] = $proxy->authentication(); $options['proxyauthtype'] = HTTP_AUTH_ANY; } } if ( !WP_DEBUG ) //Emits warning level notices for max redirects and timeouts $strResponse = @http_request($r['method'], $url, $r['body'], $options, $info); else $strResponse = http_request($r['method'], $url, $r['body'], $options, $info); //Emits warning level notices for max redirects and timeouts // Error may still be set, Response may return headers or partial document, and error // contains a reason the request was aborted, eg, timeout expired or max-redirects reached. if ( false === $strResponse || ! empty($info['error']) ) return new WP_Error('http_request_failed', $info['response_code'] . ': ' . $info['error']); if ( ! $r['blocking'] ) return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() ); $headers_body = WP_HTTP::processResponse($strResponse); $theHeaders = $headers_body['headers']; $theBody = $headers_body['body']; unset($headers_body); $theHeaders = WP_Http::processHeaders($theHeaders); if ( ! empty( $theBody ) && isset( $theHeaders['headers']['transfer-encoding'] ) && 'chunked' == $theHeaders['headers']['transfer-encoding'] ) { if ( !WP_DEBUG ) $theBody = @http_chunked_decode($theBody); else $theBody = http_chunked_decode($theBody); } if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($theHeaders['headers']) ) $theBody = http_inflate( $theBody ); $theResponse = array(); $theResponse['code'] = $info['response_code']; $theResponse['message'] = get_status_header_desc($info['response_code']); return array('headers' => $theHeaders['headers'], 'body' => $theBody, 'response' => $theResponse, 'cookies' => $theHeaders['cookies']); } /** * Whether this class can be used for retrieving an URL. * * @static * @since 2.7.0 * * @return boolean False means this class can not be used, true means it can. */ function test($args = array()) { return apply_filters('use_http_extension_transport', function_exists('http_request'), $args ); } } /** * HTTP request method uses Curl extension to retrieve the url. * * Requires the Curl extension to be installed. * * @package WordPress * @subpackage HTTP * @since 2.7 */ class WP_Http_Curl { /** * Send a HTTP request to a URI using cURL extension. * * @access public * @since 2.7.0 * * @param string $url * @param str|array $args Optional. Override the defaults. * @return array 'headers', 'body', 'cookies' and 'response' keys. */ function request($url, $args = array()) { $defaults = array( 'method' => 'GET', 'timeout' => 5, 'redirection' => 5, 'httpversion' => '1.0', 'blocking' => true, 'headers' => array(), 'body' => null, 'cookies' => array() ); $r = wp_parse_args( $args, $defaults ); if ( isset($r['headers']['User-Agent']) ) { $r['user-agent'] = $r['headers']['User-Agent']; unset($r['headers']['User-Agent']); } else if( isset($r['headers']['user-agent']) ) { $r['user-agent'] = $r['headers']['user-agent']; unset($r['headers']['user-agent']); } // Construct Cookie: header if any cookies are set. WP_Http::buildCookieHeader( $r ); $handle = curl_init(); // cURL offers really easy proxy support. $proxy = new WP_HTTP_Proxy(); if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) { $isPHP5 = version_compare(PHP_VERSION, '5.0.0', '>='); if ( $isPHP5 ) { curl_setopt( $handle, CURLOPT_PROXYTYPE, CURLPROXY_HTTP ); curl_setopt( $handle, CURLOPT_PROXY, $proxy->host() ); curl_setopt( $handle, CURLOPT_PROXYPORT, $proxy->port() ); } else { curl_setopt( $handle, CURLOPT_PROXY, $proxy->host() .':'. $proxy->port() ); } if ( $proxy->use_authentication() ) { if ( $isPHP5 ) curl_setopt( $handle, CURLOPT_PROXYAUTH, CURLAUTH_ANY ); curl_setopt( $handle, CURLOPT_PROXYUSERPWD, $proxy->authentication() ); } } $is_local = isset($args['local']) && $args['local']; $ssl_verify = isset($args['sslverify']) && $args['sslverify']; if ( $is_local ) $ssl_verify = apply_filters('https_local_ssl_verify', $ssl_verify); elseif ( ! $is_local ) $ssl_verify = apply_filters('https_ssl_verify', $ssl_verify); // CURLOPT_TIMEOUT and CURLOPT_CONNECTTIMEOUT expect integers. Have to use ceil since // a value of 0 will allow an ulimited timeout. $timeout = (int) ceil( $r['timeout'] ); curl_setopt( $handle, CURLOPT_CONNECTTIMEOUT, $timeout ); curl_setopt( $handle, CURLOPT_TIMEOUT, $timeout ); curl_setopt( $handle, CURLOPT_URL, $url); curl_setopt( $handle, CURLOPT_RETURNTRANSFER, true ); curl_setopt( $handle, CURLOPT_SSL_VERIFYHOST, $ssl_verify ); curl_setopt( $handle, CURLOPT_SSL_VERIFYPEER, $ssl_verify ); curl_setopt( $handle, CURLOPT_USERAGENT, $r['user-agent'] ); curl_setopt( $handle, CURLOPT_MAXREDIRS, $r['redirection'] ); switch ( $r['method'] ) { case 'HEAD': curl_setopt( $handle, CURLOPT_NOBODY, true ); break; case 'POST': curl_setopt( $handle, CURLOPT_POST, true ); curl_setopt( $handle, CURLOPT_POSTFIELDS, $r['body'] ); break; case 'PUT': curl_setopt( $handle, CURLOPT_CUSTOMREQUEST, 'PUT' ); curl_setopt( $handle, CURLOPT_POSTFIELDS, $r['body'] ); break; } if ( true === $r['blocking'] ) curl_setopt( $handle, CURLOPT_HEADER, true ); else curl_setopt( $handle, CURLOPT_HEADER, false ); // The option doesn't work with safe mode or when open_basedir is set. // Disable HEAD when making HEAD requests. if ( !ini_get('safe_mode') && !ini_get('open_basedir') && 'HEAD' != $r['method'] ) curl_setopt( $handle, CURLOPT_FOLLOWLOCATION, true ); if ( !empty( $r['headers'] ) ) { // cURL expects full header strings in each element $headers = array(); foreach ( $r['headers'] as $name => $value ) { $headers[] = "{$name}: $value"; } curl_setopt( $handle, CURLOPT_HTTPHEADER, $headers ); } if ( $r['httpversion'] == '1.0' ) curl_setopt( $handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0 ); else curl_setopt( $handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1 ); // Cookies are not handled by the HTTP API currently. Allow for plugin authors to handle it // themselves... Although, it is somewhat pointless without some reference. do_action_ref_array( 'http_api_curl', array(&$handle) ); // We don't need to return the body, so don't. Just execute request and return. if ( ! $r['blocking'] ) { curl_exec( $handle ); curl_close( $handle ); return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() ); } $theResponse = curl_exec( $handle ); if ( !empty($theResponse) ) { $headerLength = curl_getinfo($handle, CURLINFO_HEADER_SIZE); $theHeaders = trim( substr($theResponse, 0, $headerLength) ); if ( strlen($theResponse) > $headerLength ) $theBody = substr( $theResponse, $headerLength ); else $theBody = ''; if ( false !== strrpos($theHeaders, "\r\n\r\n") ) { $headerParts = explode("\r\n\r\n", $theHeaders); $theHeaders = $headerParts[ count($headerParts) -1 ]; } $theHeaders = WP_Http::processHeaders($theHeaders); } else { if ( $curl_error = curl_error($handle) ) return new WP_Error('http_request_failed', $curl_error); if ( in_array( curl_getinfo( $handle, CURLINFO_HTTP_CODE ), array(301, 302) ) ) return new WP_Error('http_request_failed', __('Too many redirects.')); $theHeaders = array( 'headers' => array(), 'cookies' => array() ); $theBody = ''; } $response = array(); $response['code'] = curl_getinfo( $handle, CURLINFO_HTTP_CODE ); $response['message'] = get_status_header_desc($response['code']); curl_close( $handle ); // See #11305 - When running under safe mode, redirection is disabled above. Handle it manually. if ( !empty($theHeaders['headers']['location']) && (ini_get('safe_mode') || ini_get('open_basedir')) ) { if ( $r['redirection']-- > 0 ) { return $this->request($theHeaders['headers']['location'], $r); } else { return new WP_Error('http_request_failed', __('Too many redirects.')); } } if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($theHeaders['headers']) ) $theBody = WP_Http_Encoding::decompress( $theBody ); return array('headers' => $theHeaders['headers'], 'body' => $theBody, 'response' => $response, 'cookies' => $theHeaders['cookies']); } /** * Whether this class can be used for retrieving an URL. * * @static * @since 2.7.0 * * @return boolean False means this class can not be used, true means it can. */ function test($args = array()) { if ( function_exists('curl_init') && function_exists('curl_exec') ) return apply_filters('use_curl_transport', true, $args); return false; } } /** * Adds Proxy support to the WordPress HTTP API. * * There are caveats to proxy support. It requires that defines be made in the wp-config.php file to * enable proxy support. There are also a few filters that plugins can hook into for some of the * constants. * * Please note that only BASIC authentication is supported by most transports. * cURL and the PHP HTTP Extension MAY support more methods (such as NTLM authentication) depending on your environment. * * The constants are as follows: *
    *
  1. WP_PROXY_HOST - Enable proxy support and host for connecting.
  2. *
  3. WP_PROXY_PORT - Proxy port for connection. No default, must be defined.
  4. *
  5. WP_PROXY_USERNAME - Proxy username, if it requires authentication.
  6. *
  7. WP_PROXY_PASSWORD - Proxy password, if it requires authentication.
  8. *
  9. WP_PROXY_BYPASS_HOSTS - Will prevent the hosts in this list from going through the proxy. * You do not need to have localhost and the blog host in this list, because they will not be passed * through the proxy. The list should be presented in a comma separated list
  10. *
* * An example can be as seen below. * * define('WP_PROXY_HOST', '192.168.84.101'); * define('WP_PROXY_PORT', '8080'); * define('WP_PROXY_BYPASS_HOSTS', 'localhost, www.example.com'); * * * @link http://core.trac.wordpress.org/ticket/4011 Proxy support ticket in WordPress. * @since 2.8 */ class WP_HTTP_Proxy { /** * Whether proxy connection should be used. * * @since 2.8 * @use WP_PROXY_HOST * @use WP_PROXY_PORT * * @return bool */ function is_enabled() { return defined('WP_PROXY_HOST') && defined('WP_PROXY_PORT'); } /** * Whether authentication should be used. * * @since 2.8 * @use WP_PROXY_USERNAME * @use WP_PROXY_PASSWORD * * @return bool */ function use_authentication() { return defined('WP_PROXY_USERNAME') && defined('WP_PROXY_PASSWORD'); } /** * Retrieve the host for the proxy server. * * @since 2.8 * * @return string */ function host() { if ( defined('WP_PROXY_HOST') ) return WP_PROXY_HOST; return ''; } /** * Retrieve the port for the proxy server. * * @since 2.8 * * @return string */ function port() { if ( defined('WP_PROXY_PORT') ) return WP_PROXY_PORT; return ''; } /** * Retrieve the username for proxy authentication. * * @since 2.8 * * @return string */ function username() { if ( defined('WP_PROXY_USERNAME') ) return WP_PROXY_USERNAME; return ''; } /** * Retrieve the password for proxy authentication. * * @since 2.8 * * @return string */ function password() { if ( defined('WP_PROXY_PASSWORD') ) return WP_PROXY_PASSWORD; return ''; } /** * Retrieve authentication string for proxy authentication. * * @since 2.8 * * @return string */ function authentication() { return $this->username() . ':' . $this->password(); } /** * Retrieve header string for proxy authentication. * * @since 2.8 * * @return string */ function authentication_header() { return 'Proxy-Authorization: Basic ' . base64_encode( $this->authentication() ); } /** * Whether URL should be sent through the proxy server. * * We want to keep localhost and the blog URL from being sent through the proxy server, because * some proxies can not handle this. We also have the constant available for defining other * hosts that won't be sent through the proxy. * * @uses WP_PROXY_BYPASS_HOSTS * @since unknown * * @param string $uri URI to check. * @return bool True, to send through the proxy and false if, the proxy should not be used. */ function send_through_proxy( $uri ) { // parse_url() only handles http, https type URLs, and will emit E_WARNING on failure. // This will be displayed on blogs, which is not reasonable. $check = @parse_url($uri); // Malformed URL, can not process, but this could mean ssl, so let through anyway. if ( $check === false ) return true; $home = parse_url( get_option('siteurl') ); if ( $check['host'] == 'localhost' || $check['host'] == $home['host'] ) return false; if ( !defined('WP_PROXY_BYPASS_HOSTS') ) return true; static $bypass_hosts; if ( null == $bypass_hosts ) $bypass_hosts = preg_split('|,\s*|', WP_PROXY_BYPASS_HOSTS); return !in_array( $check['host'], $bypass_hosts ); } } /** * Internal representation of a single cookie. * * Returned cookies are represented using this class, and when cookies are set, if they are not * already a WP_Http_Cookie() object, then they are turned into one. * * @todo The WordPress convention is to use underscores instead of camelCase for function and method * names. Need to switch to use underscores instead for the methods. * * @package WordPress * @subpackage HTTP * @since 2.8.0 */ class WP_Http_Cookie { /** * Cookie name. * * @since 2.8.0 * @var string */ var $name; /** * Cookie value. * * @since 2.8.0 * @var string */ var $value; /** * When the cookie expires. * * @since 2.8.0 * @var string */ var $expires; /** * Cookie URL path. * * @since 2.8.0 * @var string */ var $path; /** * Cookie Domain. * * @since 2.8.0 * @var string */ var $domain; /** * PHP4 style Constructor - Calls PHP5 Style Constructor. * * @access public * @since 2.8.0 * @param string|array $data Raw cookie data. */ function WP_Http_Cookie( $data ) { $this->__construct( $data ); } /** * Sets up this cookie object. * * The parameter $data should be either an associative array containing the indices names below * or a header string detailing it. * * If it's an array, it should include the following elements: *
    *
  1. Name
  2. *
  3. Value - should NOT be urlencoded already.
  4. *
  5. Expires - (optional) String or int (UNIX timestamp).
  6. *
  7. Path (optional)
  8. *
  9. Domain (optional)
  10. *
* * @access public * @since 2.8.0 * * @param string|array $data Raw cookie data. */ function __construct( $data ) { if ( is_string( $data ) ) { // Assume it's a header string direct from a previous request $pairs = explode( ';', $data ); // Special handling for first pair; name=value. Also be careful of "=" in value $name = trim( substr( $pairs[0], 0, strpos( $pairs[0], '=' ) ) ); $value = substr( $pairs[0], strpos( $pairs[0], '=' ) + 1 ); $this->name = $name; $this->value = urldecode( $value ); array_shift( $pairs ); //Removes name=value from items. // Set everything else as a property foreach ( $pairs as $pair ) { $pair = rtrim($pair); if ( empty($pair) ) //Handles the cookie ending in ; which results in a empty final pair continue; list( $key, $val ) = strpos( $pair, '=' ) ? explode( '=', $pair ) : array( $pair, '' ); $key = strtolower( trim( $key ) ); if ( 'expires' == $key ) $val = strtotime( $val ); $this->$key = $val; } } else { if ( !isset( $data['name'] ) ) return false; // Set properties based directly on parameters $this->name = $data['name']; $this->value = isset( $data['value'] ) ? $data['value'] : ''; $this->path = isset( $data['path'] ) ? $data['path'] : ''; $this->domain = isset( $data['domain'] ) ? $data['domain'] : ''; if ( isset( $data['expires'] ) ) $this->expires = is_int( $data['expires'] ) ? $data['expires'] : strtotime( $data['expires'] ); else $this->expires = null; } } /** * Confirms that it's OK to send this cookie to the URL checked against. * * Decision is based on RFC 2109/2965, so look there for details on validity. * * @access public * @since 2.8.0 * * @param string $url URL you intend to send this cookie to * @return boolean TRUE if allowed, FALSE otherwise. */ function test( $url ) { // Expires - if expired then nothing else matters if ( time() > $this->expires ) return false; // Get details on the URL we're thinking about sending to $url = parse_url( $url ); $url['port'] = isset( $url['port'] ) ? $url['port'] : 80; $url['path'] = isset( $url['path'] ) ? $url['path'] : '/'; // Values to use for comparison against the URL $path = isset( $this->path ) ? $this->path : '/'; $port = isset( $this->port ) ? $this->port : 80; $domain = isset( $this->domain ) ? strtolower( $this->domain ) : strtolower( $url['host'] ); if ( false === stripos( $domain, '.' ) ) $domain .= '.local'; // Host - very basic check that the request URL ends with the domain restriction (minus leading dot) $domain = substr( $domain, 0, 1 ) == '.' ? substr( $domain, 1 ) : $domain; if ( substr( $url['host'], -strlen( $domain ) ) != $domain ) return false; // Port - supports "port-lists" in the format: "80,8000,8080" if ( !in_array( $url['port'], explode( ',', $port) ) ) return false; // Path - request path must start with path restriction if ( substr( $url['path'], 0, strlen( $path ) ) != $path ) return false; return true; } /** * Convert cookie name and value back to header string. * * @access public * @since 2.8.0 * * @return string Header encoded cookie name and value. */ function getHeaderValue() { if ( empty( $this->name ) || empty( $this->value ) ) return ''; return $this->name . '=' . urlencode( $this->value ); } /** * Retrieve cookie header for usage in the rest of the WordPress HTTP API. * * @access public * @since 2.8.0 * * @return string */ function getFullHeader() { return 'Cookie: ' . $this->getHeaderValue(); } } /** * Implementation for deflate and gzip transfer encodings. * * Includes RFC 1950, RFC 1951, and RFC 1952. * * @since 2.8 * @package WordPress * @subpackage HTTP */ class WP_Http_Encoding { /** * Compress raw string using the deflate format. * * Supports the RFC 1951 standard. * * @since 2.8 * * @param string $raw String to compress. * @param int $level Optional, default is 9. Compression level, 9 is highest. * @param string $supports Optional, not used. When implemented it will choose the right compression based on what the server supports. * @return string|bool False on failure. */ function compress( $raw, $level = 9, $supports = null ) { return gzdeflate( $raw, $level ); } /** * Decompression of deflated string. * * Will attempt to decompress using the RFC 1950 standard, and if that fails * then the RFC 1951 standard deflate will be attempted. Finally, the RFC * 1952 standard gzip decode will be attempted. If all fail, then the * original compressed string will be returned. * * @since 2.8 * * @param string $compressed String to decompress. * @param int $length The optional length of the compressed data. * @return string|bool False on failure. */ function decompress( $compressed, $length = null ) { if ( empty($compressed) ) return $compressed; if ( false !== ( $decompressed = @gzinflate( $compressed ) ) ) return $decompressed; if ( false !== ( $decompressed = WP_Http_Encoding::compatible_gzinflate( $compressed ) ) ) return $decompressed; if ( false !== ( $decompressed = @gzuncompress( $compressed ) ) ) return $decompressed; if ( function_exists('gzdecode') ) { $decompressed = @gzdecode( $compressed ); if ( false !== $decompressed ) return $decompressed; } return $compressed; } /** * Decompression of deflated string while staying compatible with the majority of servers. * * Certain Servers will return deflated data with headers which PHP's gziniflate() * function cannot handle out of the box. The following function lifted from * http://au2.php.net/manual/en/function.gzinflate.php#77336 will attempt to deflate * the various return forms used. * * @since 2.8.1 * @link http://au2.php.net/manual/en/function.gzinflate.php#77336 * * @param string $gzData String to decompress. * @return string|bool False on failure. */ function compatible_gzinflate($gzData) { if ( substr($gzData, 0, 3) == "\x1f\x8b\x08" ) { $i = 10; $flg = ord( substr($gzData, 3, 1) ); if ( $flg > 0 ) { if ( $flg & 4 ) { list($xlen) = unpack('v', substr($gzData, $i, 2) ); $i = $i + 2 + $xlen; } if ( $flg & 8 ) $i = strpos($gzData, "\0", $i) + 1; if ( $flg & 16 ) $i = strpos($gzData, "\0", $i) + 1; if ( $flg & 2 ) $i = $i + 2; } return gzinflate( substr($gzData, $i, -8) ); } else { return false; } } /** * What encoding types to accept and their priority values. * * @since 2.8 * * @return string Types of encoding to accept. */ function accept_encoding() { $type = array(); if ( function_exists( 'gzinflate' ) ) $type[] = 'deflate;q=1.0'; if ( function_exists( 'gzuncompress' ) ) $type[] = 'compress;q=0.5'; if ( function_exists( 'gzdecode' ) ) $type[] = 'gzip;q=0.5'; return implode(', ', $type); } /** * What enconding the content used when it was compressed to send in the headers. * * @since 2.8 * * @return string Content-Encoding string to send in the header. */ function content_encoding() { return 'deflate'; } /** * Whether the content be decoded based on the headers. * * @since 2.8 * * @param array|string $headers All of the available headers. * @return bool */ function should_decode($headers) { if ( is_array( $headers ) ) { if ( array_key_exists('content-encoding', $headers) && ! empty( $headers['content-encoding'] ) ) return true; } else if ( is_string( $headers ) ) { return ( stripos($headers, 'content-encoding:') !== false ); } return false; } /** * Whether decompression and compression are supported by the PHP version. * * Each function is tested instead of checking for the zlib extension, to * ensure that the functions all exist in the PHP version and aren't * disabled. * * @since 2.8 * * @return bool */ function is_available() { return ( function_exists('gzuncompress') || function_exists('gzdeflate') || function_exists('gzinflate') ); } }
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