/var/www/wordpress/wp-admin/includes/admin.php
/var/www/wordpress/wp-admin/includes/bookmark.php
/var/www/wordpress/wp-admin/includes/class-ftp-pure.php
/var/www/wordpress/wp-admin/includes/class-ftp-sockets.php
/var/www/wordpress/wp-admin/includes/class-ftp.php
/var/www/wordpress/wp-admin/includes/class-pclzip.php
/var/www/wordpress/wp-admin/includes/class-wp-filesystem-base.php
/var/www/wordpress/wp-admin/includes/class-wp-filesystem-direct.php
/var/www/wordpress/wp-admin/includes/class-wp-filesystem-ftpext.php
/var/www/wordpress/wp-admin/includes/class-wp-filesystem-ftpsockets.php
/var/www/wordpress/wp-admin/includes/class-wp-filesystem-ssh2.php
/var/www/wordpress/wp-admin/includes/class-wp-importer.php
/var/www/wordpress/wp-admin/includes/class-wp-upgrader.php
/var/www/wordpress/wp-admin/includes/comment.php
/var/www/wordpress/wp-admin/includes/continents-cities.php
/var/www/wordpress/wp-admin/includes/dashboard.php
/var/www/wordpress/wp-admin/includes/deprecated.php
/var/www/wordpress/wp-admin/includes/export.php
/var/www/wordpress/wp-admin/includes/file.php
/var/www/wordpress/wp-admin/includes/image-edit.php
/var/www/wordpress/wp-admin/includes/image.php
/var/www/wordpress/wp-admin/includes/import.php
/var/www/wordpress/wp-admin/includes/manifest.php
/var/www/wordpress/wp-admin/includes/media.php
/var/www/wordpress/wp-admin/includes/meta-boxes.php
/var/www/wordpress/wp-admin/includes/misc.php
/var/www/wordpress/wp-admin/includes/ms-deprecated.php
/var/www/wordpress/wp-admin/includes/ms.php
/var/www/wordpress/wp-admin/includes/nav-menu.php
/var/www/wordpress/wp-admin/includes/plugin-install.php
/var/www/wordpress/wp-admin/includes/plugin.php
/var/www/wordpress/wp-admin/includes/post.php
/var/www/wordpress/wp-admin/includes/schema.php
/var/www/wordpress/wp-admin/includes/taxonomy.php
/var/www/wordpress/wp-admin/includes/template.php
/var/www/wordpress/wp-admin/includes/theme-install.php
/var/www/wordpress/wp-admin/includes/theme.php
/var/www/wordpress/wp-admin/includes/update-core.php
/var/www/wordpress/wp-admin/includes/update.php
/var/www/wordpress/wp-admin/includes/upgrade.php
/var/www/wordpress/wp-admin/includes/user.php
/var/www/wordpress/wp-admin/includes/widgets.php
/var/www/wordpress/wp-admin/js/revisions-js.php
/var/www/wordpress/wp-admin/maint/repair.php
/var/www/wordpress/wp-admin/admin-ajax.php
/var/www/wordpress/wp-admin/admin-footer.php
/var/www/wordpress/wp-admin/admin-functions.php
/var/www/wordpress/wp-admin/admin-header.php
/var/www/wordpress/wp-admin/admin-post.php
/var/www/wordpress/wp-admin/admin.php
/var/www/wordpress/wp-admin/async-upload.php
/var/www/wordpress/wp-admin/comment.php
/var/www/wordpress/wp-admin/custom-background.php
/var/www/wordpress/wp-admin/custom-header.php
/var/www/wordpress/wp-admin/edit-attachment-rows.php
/var/www/wordpress/wp-admin/edit-comments.php
/var/www/wordpress/wp-admin/edit-form-advanced.php
/var/www/wordpress/wp-admin/edit-form-comment.php
/var/www/wordpress/wp-admin/edit-link-categories.php
/var/www/wordpress/wp-admin/edit-link-category-form.php
/var/www/wordpress/wp-admin/edit-link-form.php
/var/www/wordpress/wp-admin/edit-post-rows.php
/var/www/wordpress/wp-admin/edit-tag-form.php
/var/www/wordpress/wp-admin/edit-tags.php
/var/www/wordpress/wp-admin/edit.php
/var/www/wordpress/wp-admin/export.php
/var/www/wordpress/wp-admin/gears-manifest.php
/var/www/wordpress/wp-admin/import.php
/var/www/wordpress/wp-admin/index-extra.php
/var/www/wordpress/wp-admin/index.php
/var/www/wordpress/wp-admin/install-helper.php
/var/www/wordpress/wp-admin/install.php
/var/www/wordpress/wp-admin/link-add.php
/var/www/wordpress/wp-admin/link-category.php
/var/www/wordpress/wp-admin/link-manager.php
/var/www/wordpress/wp-admin/link-parse-opml.php
/var/www/wordpress/wp-admin/link.php
/var/www/wordpress/wp-admin/load-scripts.php
/var/www/wordpress/wp-admin/load-styles.php
/var/www/wordpress/wp-admin/media-new.php
/var/www/wordpress/wp-admin/media-upload.php
/var/www/wordpress/wp-admin/media.php
/var/www/wordpress/wp-admin/menu-header.php
/var/www/wordpress/wp-admin/menu.php
/var/www/wordpress/wp-admin/moderation.php
/var/www/wordpress/wp-admin/ms-admin.php
/var/www/wordpress/wp-admin/ms-delete-site.php
/var/www/wordpress/wp-admin/ms-edit.php
/var/www/wordpress/wp-admin/ms-options.php
/var/www/wordpress/wp-admin/ms-sites.php
/var/www/wordpress/wp-admin/ms-themes.php
/var/www/wordpress/wp-admin/ms-upgrade-network.php
/var/www/wordpress/wp-admin/ms-users.php
/var/www/wordpress/wp-admin/my-sites.php
/var/www/wordpress/wp-admin/nav-menus.php
/var/www/wordpress/wp-admin/network.php
/var/www/wordpress/wp-admin/options-discussion.php
/var/www/wordpress/wp-admin/options-general.php
/var/www/wordpress/wp-admin/options-head.php
/var/www/wordpress/wp-admin/options-media.php
/var/www/wordpress/wp-admin/options-permalink.php
/var/www/wordpress/wp-admin/options-privacy.php
/var/www/wordpress/wp-admin/options-reading.php
/var/www/wordpress/wp-admin/options-writing.php
/var/www/wordpress/wp-admin/options.php
/var/www/wordpress/wp-admin/plugin-editor.php
/var/www/wordpress/wp-admin/plugin-install.php
/var/www/wordpress/wp-admin/plugins.php
/var/www/wordpress/wp-admin/post-new.php
/var/www/wordpress/wp-admin/post.php
/var/www/wordpress/wp-admin/press-this.php
/var/www/wordpress/wp-admin/profile.php
/var/www/wordpress/wp-admin/revision.php
/var/www/wordpress/wp-admin/setup-config.php
/var/www/wordpress/wp-admin/sidebar.php
/var/www/wordpress/wp-admin/theme-editor.php
/var/www/wordpress/wp-admin/theme-install.php
/var/www/wordpress/wp-admin/themes.php
/var/www/wordpress/wp-admin/tools.php
/var/www/wordpress/wp-admin/update-core.php
/var/www/wordpress/wp-admin/update.php
/var/www/wordpress/wp-admin/upgrade-functions.php
/var/www/wordpress/wp-admin/upgrade.php
/var/www/wordpress/wp-admin/upload.php
/var/www/wordpress/wp-admin/user-edit.php
/var/www/wordpress/wp-admin/user-new.php
/var/www/wordpress/wp-admin/users.php
/var/www/wordpress/wp-admin/widgets.php
/var/www/wordpress/wp-content/languages/ru_RU.php
/var/www/wordpress/wp-content/plugins/akismet/akismet.php
/var/www/wordpress/wp-content/plugins/rh/rh.php
/var/www/wordpress/wp-content/plugins/hello.php
/var/www/wordpress/wp-content/plugins/index.php
/var/www/wordpress/wp-content/themes/twentyten/404.php
/var/www/wordpress/wp-content/themes/twentyten/archive.php
/var/www/wordpress/wp-content/themes/twentyten/attachment.php
/var/www/wordpress/wp-content/themes/twentyten/author.php
/var/www/wordpress/wp-content/themes/twentyten/category.php
/var/www/wordpress/wp-content/themes/twentyten/comments.php
/var/www/wordpress/wp-content/themes/twentyten/footer.php
/var/www/wordpress/wp-content/themes/twentyten/functions.php
/var/www/wordpress/wp-content/themes/twentyten/header.php
/var/www/wordpress/wp-content/themes/twentyten/index.php
/var/www/wordpress/wp-content/themes/twentyten/loop.php
/var/www/wordpress/wp-content/themes/twentyten/onecolumn-page.php
/var/www/wordpress/wp-content/themes/twentyten/page.php
/var/www/wordpress/wp-content/themes/twentyten/search.php
/var/www/wordpress/wp-content/themes/twentyten/sidebar-footer.php
/var/www/wordpress/wp-content/themes/twentyten/sidebar.php
/var/www/wordpress/wp-content/themes/twentyten/single.php
/var/www/wordpress/wp-content/themes/twentyten/tag.php
/var/www/wordpress/wp-content/themes/index.php
/var/www/wordpress/wp-content/index.php
/var/www/wordpress/wp-includes/js/tinymce/langs/wp-langs.php
/var/www/wordpress/wp-includes/js/tinymce/plugins/spellchecker/classes/utils/JSON.php
/var/www/wordpress/wp-includes/js/tinymce/plugins/spellchecker/classes/utils/Logger.php
/var/www/wordpress/wp-includes/js/tinymce/plugins/spellchecker/classes/EnchantSpell.php
/var/www/wordpress/wp-includes/js/tinymce/plugins/spellchecker/classes/GoogleSpell.php
/var/www/wordpress/wp-includes/js/tinymce/plugins/spellchecker/classes/PSpell.php
/var/www/wordpress/wp-includes/js/tinymce/plugins/spellchecker/classes/PSpellShell.php
/var/www/wordpress/wp-includes/js/tinymce/plugins/spellchecker/classes/SpellChecker.php
/var/www/wordpress/wp-includes/js/tinymce/plugins/spellchecker/includes/general.php
/var/www/wordpress/wp-includes/js/tinymce/plugins/spellchecker/config.php
/var/www/wordpress/wp-includes/js/tinymce/plugins/spellchecker/rpc.php
/var/www/wordpress/wp-includes/js/tinymce/wp-mce-help.php
/var/www/wordpress/wp-includes/js/tinymce/wp-tinymce.php
/var/www/wordpress/wp-includes/pomo/entry.php
/var/www/wordpress/wp-includes/pomo/mo.php
/var/www/wordpress/wp-includes/pomo/po.php
/var/www/wordpress/wp-includes/pomo/streams.php
/var/www/wordpress/wp-includes/pomo/translations.php
/var/www/wordpress/wp-includes/Text/Diff/Engine/native.php
/var/www/wordpress/wp-includes/Text/Diff/Engine/shell.php
/var/www/wordpress/wp-includes/Text/Diff/Engine/string.php
/var/www/wordpress/wp-includes/Text/Diff/Engine/xdiff.php
/var/www/wordpress/wp-includes/Text/Diff/Renderer/inline.php
/var/www/wordpress/wp-includes/Text/Diff/Renderer.php
/var/www/wordpress/wp-includes/Text/Diff.php
/var/www/wordpress/wp-includes/theme-compat/comments-popup.php
/var/www/wordpress/wp-includes/theme-compat/comments.php
/var/www/wordpress/wp-includes/theme-compat/footer.php
/var/www/wordpress/wp-includes/theme-compat/header.php
/var/www/wordpress/wp-includes/theme-compat/sidebar.php
/var/www/wordpress/wp-includes/atomlib.php
/var/www/wordpress/wp-includes/author-template.php
/var/www/wordpress/wp-includes/bookmark-template.php
/var/www/wordpress/wp-includes/bookmark.php
/var/www/wordpress/wp-includes/cache.php
/var/www/wordpress/wp-includes/canonical.php
/var/www/wordpress/wp-includes/capabilities.php
/var/www/wordpress/wp-includes/category-template.php
/var/www/wordpress/wp-includes/category.php
/var/www/wordpress/wp-includes/class-feed.php
/var/www/wordpress/wp-includes/class-http.php
/var/www/wordpress/wp-includes/class-IXR.php
/var/www/wordpress/wp-includes/class-json.php
/var/www/wordpress/wp-includes/class-oembed.php
/var/www/wordpress/wp-includes/class-phpass.php
/var/www/wordpress/wp-includes/class-phpmailer.php
/var/www/wordpress/wp-includes/class-pop3.php
/var/www/wordpress/wp-includes/class-simplepie.php
/var/www/wordpress/wp-includes/class-smtp.php
/var/www/wordpress/wp-includes/class-snoopy.php
/var/www/wordpress/wp-includes/class.wp-dependencies.php
/var/www/wordpress/wp-includes/class.wp-scripts.php
/var/www/wordpress/wp-includes/class.wp-styles.php
/var/www/wordpress/wp-includes/classes.php
#CodeDescriptions
1<?php
2/**
3 * Holds Most of the WordPress classes.
4 *
5 * Some of the other classes are contained in other files. For example, the
6 * WordPress cache is in cache.php and the WordPress roles API is in
7 * capabilities.php. The third party libraries are contained in their own
8 * separate files.
9 *
10 * @package WordPress
11 */
12
13/**
14 * WordPress environment setup class.
15 *
16 * @package WordPress
17 * @since 2.0.0
18 */
19class WP {
20 /**
21 * Public query variables.
22 *
23 * Long list of public query variables.
24 *
25 * @since 2.0.0
26 * @access public
27 * @var array
28 */
29 var $public_query_vars = array('m', 'p', 'posts', 'w', 'cat', 'withcomments', 'withoutcomments', 's', 'search', 'exact', 'sentence', 'debug', 'calendar', 'page', 'paged', 'more', 'tb', 'pb', 'author', 'order', 'orderby', 'year', 'monthnum', 'day', 'hour', 'minute', 'second', 'name', 'category_name', 'tag', 'feed', 'author_name', 'static', 'pagename', 'page_id', 'error', 'comments_popup', 'attachment', 'attachment_id', 'subpost', 'subpost_id', 'preview', 'robots', 'taxonomy', 'term', 'cpage', 'post_type');
30
31 /**
32 * Private query variables.
33 *
34 * Long list of private query variables.
35 *
36 * @since 2.0.0
37 * @var array
38 */
39 var $private_query_vars = array('offset', 'posts_per_page', 'posts_per_archive_page', 'showposts', 'nopaging', 'post_type', 'post_status', 'category__in', 'category__not_in', 'category__and', 'tag__in', 'tag__not_in', 'tag__and', 'tag_slug__in', 'tag_slug__and', 'tag_id', 'post_mime_type', 'perm', 'comments_per_page');
40
41 /**
42 * Extra query variables set by the user.
43 *
44 * @since 2.1.0
45 * @var array
46 */
47 var $extra_query_vars = array();
48
49 /**
50 * Query variables for setting up the WordPress Query Loop.
51 *
52 * @since 2.0.0
53 * @var array
54 */
55 var $query_vars;
56
57 /**
58 * String parsed to set the query variables.
59 *
60 * @since 2.0.0
61 * @var string
62 */
63 var $query_string;
64
65 /**
66 * Permalink or requested URI.
67 *
68 * @since 2.0.0
69 * @var string
70 */
71 var $request;
72
73 /**
74 * Rewrite rule the request matched.
75 *
76 * @since 2.0.0
77 * @var string
78 */
79 var $matched_rule;
80
81 /**
82 * Rewrite query the request matched.
83 *
84 * @since 2.0.0
85 * @var string
86 */
87 var $matched_query;
88
89 /**
90 * Whether already did the permalink.
91 *
92 * @since 2.0.0
93 * @var bool
94 */
95 var $did_permalink = false;
96
97 /**
98 * Add name to list of public query variables.
99 *
100 * @since 2.1.0
101 *
102 * @param string $qv Query variable name.
103 */
104 function add_query_var($qv) {
105 if ( !in_array($qv, $this->public_query_vars) )
106 $this->public_query_vars[] = $qv;
107 }
108
109 /**
110 * Set the value of a query variable.
111 *
112 * @since 2.3.0
113 *
114 * @param string $key Query variable name.
115 * @param mixed $value Query variable value.
116 */
117 function set_query_var($key, $value) {
118 $this->query_vars[$key] = $value;
119 }
120
121 /**
122 * Parse request to find correct WordPress query.
123 *
124 * Sets up the query variables based on the request. There are also many
125 * filters and actions that can be used to further manipulate the result.
126 *
127 * @since 2.0.0
128 *
129 * @param array|string $extra_query_vars Set the extra query variables.
130 */
131 function parse_request($extra_query_vars = '') {
132 global $wp_rewrite;
133
134 $this->query_vars = array();
135 $taxonomy_query_vars = array();
136 $post_type_query_vars = array();
137
138 if ( is_array($extra_query_vars) )
139 $this->extra_query_vars = & $extra_query_vars;
140 else if (! empty($extra_query_vars))
141 parse_str($extra_query_vars, $this->extra_query_vars);
142
143 // Process PATH_INFO, REQUEST_URI, and 404 for permalinks.
144
145 // Fetch the rewrite rules.
146 $rewrite = $wp_rewrite->wp_rewrite_rules();
147
148 if ( ! empty($rewrite) ) {
149 // If we match a rewrite rule, this will be cleared.
150 $error = '404';
151 $this->did_permalink = true;
152
153 if ( isset($_SERVER['PATH_INFO']) )
154 $pathinfo = $_SERVER['PATH_INFO'];
155 else
156 $pathinfo = '';
157 $pathinfo_array = explode('?', $pathinfo);
158 $pathinfo = str_replace("%", "%25", $pathinfo_array[0]);
159 $req_uri = $_SERVER['REQUEST_URI'];
160 $req_uri_array = explode('?', $req_uri);
161 $req_uri = $req_uri_array[0];
162 $self = $_SERVER['PHP_SELF'];
163 $home_path = parse_url(home_url());
164 if ( isset($home_path['path']) )
165 $home_path = $home_path['path'];
166 else
167 $home_path = '';
168 $home_path = trim($home_path, '/');
169
170 // Trim path info from the end and the leading home path from the
171 // front. For path info requests, this leaves us with the requesting
172 // filename, if any. For 404 requests, this leaves us with the
173 // requested permalink.
174 $req_uri = str_replace($pathinfo, '', rawurldecode($req_uri));
175 $req_uri = trim($req_uri, '/');
176 $req_uri = preg_replace("|^$home_path|", '', $req_uri);
177 $req_uri = trim($req_uri, '/');
178 $pathinfo = trim($pathinfo, '/');
179 $pathinfo = preg_replace("|^$home_path|", '', $pathinfo);
180 $pathinfo = trim($pathinfo, '/');
181 $self = trim($self, '/');
182 $self = preg_replace("|^$home_path|", '', $self);
183 $self = trim($self, '/');
184
185 // The requested permalink is in $pathinfo for path info requests and
186 // $req_uri for other requests.
187 if ( ! empty($pathinfo) && !preg_match('|^.*' . $wp_rewrite->index . '$|', $pathinfo) ) {
188 $request = $pathinfo;
189 } else {
190 // If the request uri is the index, blank it out so that we don't try to match it against a rule.
191 if ( $req_uri == $wp_rewrite->index )
192 $req_uri = '';
193 $request = $req_uri;
194 }
195
196 $this->request = $request;
197
198 // Look for matches.
199 $request_match = $request;
200 foreach ( (array) $rewrite as $match => $query) {
201 // Don't try to match against AtomPub calls
202 if ( $req_uri == 'wp-app.php' )
203 break;
204
205 // If the requesting file is the anchor of the match, prepend it
206 // to the path info.
207 if ( (! empty($req_uri)) && (strpos($match, $req_uri) === 0) && ($req_uri != $request) )
208 $request_match = $req_uri . '/' . $request;
209
210 if ( preg_match("#^$match#", $request_match, $matches) ||
211 preg_match("#^$match#", urldecode($request_match), $matches) ) {
212 // Got a match.
213 $this->matched_rule = $match;
214
215 // Trim the query of everything up to the '?'.
216 $query = preg_replace("!^.+\?!", '', $query);
217
218 // Substitute the substring matches into the query.
219 $query = addslashes(WP_MatchesMapRegex::apply($query, $matches));
220
221 $this->matched_query = $query;
222
223 // Parse the query.
224 parse_str($query, $perma_query_vars);
225
226 // If we're processing a 404 request, clear the error var
227 // since we found something.
228 if ( isset($_GET['error']) )
229 unset($_GET['error']);
230
231 if ( isset($error) )
232 unset($error);
233
234 break;
235 }
236 }
237
238 // If req_uri is empty or if it is a request for ourself, unset error.
239 if ( empty($request) || $req_uri == $self || strpos($_SERVER['PHP_SELF'], 'wp-admin/') !== false ) {
240 if ( isset($_GET['error']) )
241 unset($_GET['error']);
242
243 if ( isset($error) )
244 unset($error);
245
246 if ( isset($perma_query_vars) && strpos($_SERVER['PHP_SELF'], 'wp-admin/') !== false )
247 unset($perma_query_vars);
248
249 $this->did_permalink = false;
250 }
251 }
252
253 $this->public_query_vars = apply_filters('query_vars', $this->public_query_vars);
254
255 foreach ( $GLOBALS['wp_taxonomies'] as $taxonomy => $t )
256 if ( $t->query_var )
257 $taxonomy_query_vars[$t->query_var] = $taxonomy;
258
259 foreach ( $GLOBALS['wp_post_types'] as $post_type => $t )
260 if ( $t->query_var )
261 $post_type_query_vars[$t->query_var] = $post_type;
262
263 for ( $i = 0; $i < count($this->public_query_vars); $i += 1 ) {
264 $wpvar = $this->public_query_vars[$i];
265 if ( isset($this->extra_query_vars[$wpvar]) )
266 $this->query_vars[$wpvar] = $this->extra_query_vars[$wpvar];
267 elseif ( isset($GLOBALS[$wpvar]) )
268 $this->query_vars[$wpvar] = $GLOBALS[$wpvar];
269 elseif ( !empty($_POST[$wpvar]) )
270 $this->query_vars[$wpvar] = $_POST[$wpvar];
271 elseif ( !empty($_GET[$wpvar]) )
272 $this->query_vars[$wpvar] = $_GET[$wpvar];
273 elseif ( !empty($perma_query_vars[$wpvar]) )
274 $this->query_vars[$wpvar] = $perma_query_vars[$wpvar];
275
276 if ( !empty( $this->query_vars[$wpvar] ) ) {
277 $this->query_vars[$wpvar] = (string) $this->query_vars[$wpvar];
278 if ( isset( $taxonomy_query_vars[$wpvar] ) ) {
279 $this->query_vars['taxonomy'] = $taxonomy_query_vars[$wpvar];
280 $this->query_vars['term'] = $this->query_vars[$wpvar];
281 } elseif ( isset($post_type_query_vars[$wpvar] ) ) {
282 $this->query_vars['post_type'] = $post_type_query_vars[$wpvar];
283 $this->query_vars['name'] = $this->query_vars[$wpvar];
284 }
285 }
286 }
287
288 // Limit publicly queried post_types to those that are publicly_queryable
289 if ( isset( $this->query_vars['post_type']) ) {
290 $queryable_post_types = get_post_types( array('publicly_queryable' => true) );
291 if ( ! in_array( $this->query_vars['post_type'], $queryable_post_types ) )
292 unset( $this->query_vars['post_type'] );
293 }
294
295 foreach ( (array) $this->private_query_vars as $var) {
296 if ( isset($this->extra_query_vars[$var]) )
297 $this->query_vars[$var] = $this->extra_query_vars[$var];
298 elseif ( isset($GLOBALS[$var]) && '' != $GLOBALS[$var] )
299 $this->query_vars[$var] = $GLOBALS[$var];
300 }
301
302 if ( isset($error) )
303 $this->query_vars['error'] = $error;
304
305 $this->query_vars = apply_filters('request', $this->query_vars);
306
307 do_action_ref_array('parse_request', array(&$this));
308 }
309
310 /**
311 * Send additional HTTP headers for caching, content type, etc.
312 *
313 * Sets the X-Pingback header, 404 status (if 404), Content-type. If showing
314 * a feed, it will also send last-modified, etag, and 304 status if needed.
315 *
316 * @since 2.0.0
317 */
318 function send_headers() {
319 $headers = array('X-Pingback' => get_bloginfo('pingback_url'));
320 $status = null;
321 $exit_required = false;
322
323 if ( is_user_logged_in() )
324 $headers = array_merge($headers, wp_get_nocache_headers());
325 if ( !empty($this->query_vars['error']) && '404' == $this->query_vars['error'] ) {
326 $status = 404;
327 if ( !is_user_logged_in() )
328 $headers = array_merge($headers, wp_get_nocache_headers());
329 $headers['Content-Type'] = get_option('html_type') . '; charset=' . get_option('blog_charset');
330 } else if ( empty($this->query_vars['feed']) ) {
331 $headers['Content-Type'] = get_option('html_type') . '; charset=' . get_option('blog_charset');
332 } else {
333 // We're showing a feed, so WP is indeed the only thing that last changed
334 if ( !empty($this->query_vars['withcomments'])
335 || ( empty($this->query_vars['withoutcomments'])
336 && ( !empty($this->query_vars['p'])
337 || !empty($this->query_vars['name'])
338 || !empty($this->query_vars['page_id'])
339 || !empty($this->query_vars['pagename'])
340 || !empty($this->query_vars['attachment'])
341 || !empty($this->query_vars['attachment_id'])
342 )
343 )
344 )
345 $wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastcommentmodified('GMT'), 0).' GMT';
346 else
347 $wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastpostmodified('GMT'), 0).' GMT';
348 $wp_etag = '"' . md5($wp_last_modified) . '"';
349 $headers['Last-Modified'] = $wp_last_modified;
350 $headers['ETag'] = $wp_etag;
351
352 // Support for Conditional GET
353 if (isset($_SERVER['HTTP_IF_NONE_MATCH']))
354 $client_etag = stripslashes(stripslashes($_SERVER['HTTP_IF_NONE_MATCH']));
355 else $client_etag = false;
356
357 $client_last_modified = empty($_SERVER['HTTP_IF_MODIFIED_SINCE']) ? '' : trim($_SERVER['HTTP_IF_MODIFIED_SINCE']);
358 // If string is empty, return 0. If not, attempt to parse into a timestamp
359 $client_modified_timestamp = $client_last_modified ? strtotime($client_last_modified) : 0;
360
361 // Make a timestamp for our most recent modification...
362 $wp_modified_timestamp = strtotime($wp_last_modified);
363
364 if ( ($client_last_modified && $client_etag) ?
365 (($client_modified_timestamp >= $wp_modified_timestamp) && ($client_etag == $wp_etag)) :
366 (($client_modified_timestamp >= $wp_modified_timestamp) || ($client_etag == $wp_etag)) ) {
367 $status = 304;
368 $exit_required = true;
369 }
370 }
371
372 $headers = apply_filters('wp_headers', $headers, $this);
373
374 if ( ! empty( $status ) )
375 status_header( $status );//Cross Site Scripting
376 foreach( (array) $headers as $name => $field_value )
377 @header("{$name}: {$field_value}");//Cross Site Scripting
378
379 if ($exit_required)
380 exit();
381
382 do_action_ref_array('send_headers', array(&$this));
383 }
384
385 /**
386 * Sets the query string property based off of the query variable property.
387 *
388 * The 'query_string' filter is deprecated, but still works. Plugins should
389 * use the 'request' filter instead.
390 *
391 * @since 2.0.0
392 */
393 function build_query_string() {
394 $this->query_string = '';
395 foreach ( (array) array_keys($this->query_vars) as $wpvar) {
396 if ( '' != $this->query_vars[$wpvar] ) {
397 $this->query_string .= (strlen($this->query_string) < 1) ? '' : '&';
398 if ( !is_scalar($this->query_vars[$wpvar]) ) // Discard non-scalars.
399 continue;
400 $this->query_string .= $wpvar . '=' . rawurlencode($this->query_vars[$wpvar]);
401 }
402 }
403
404 // query_string filter deprecated. Use request filter instead.
405 if ( has_filter('query_string') ) { // Don't bother filtering and parsing if no plugins are hooked in.
406 $this->query_string = apply_filters('query_string', $this->query_string);
407 parse_str($this->query_string, $this->query_vars);
408 }
409 }
410
411 /**
412 * Set up the WordPress Globals.
413 *
414 * The query_vars property will be extracted to the GLOBALS. So care should
415 * be taken when naming global variables that might interfere with the
416 * WordPress environment.
417 *
418 * @global string $query_string Query string for the loop.
419 * @global int $more Only set, if single page or post.
420 * @global int $single If single page or post. Only set, if single page or post.
421 *
422 * @since 2.0.0
423 */
424 function register_globals() {
425 global $wp_query;
426 // Extract updated query vars back into global namespace.
427 foreach ( (array) $wp_query->query_vars as $key => $value) {
428 $GLOBALS[$key] = $value;
429 }
430
431 $GLOBALS['query_string'] = $this->query_string;
432 $GLOBALS['posts'] = & $wp_query->posts;
433 $GLOBALS['post'] = $wp_query->post;
434 $GLOBALS['request'] = $wp_query->request;
435
436 if ( is_single() || is_page() ) {
437 $GLOBALS['more'] = 1;
438 $GLOBALS['single'] = 1;
439 }
440 }
441
442 /**
443 * Set up the current user.
444 *
445 * @since 2.0.0
446 */
447 function init() {
448 wp_get_current_user();
449 }
450
451 /**
452 * Set up the Loop based on the query variables.
453 *
454 * @uses WP::$query_vars
455 * @since 2.0.0
456 */
457 function query_posts() {
458 global $wp_the_query;
459 $this->build_query_string();
460 $wp_the_query->query($this->query_vars);
461 }
462
463 /**
464 * Set the Headers for 404, if nothing is found for requested URL.
465 *
466 * Issue a 404 if a request doesn't match any posts and doesn't match
467 * any object (e.g. an existing-but-empty category, tag, author) and a 404 was not already
468 * issued, and if the request was not a search or the homepage.
469 *
470 * Otherwise, issue a 200.
471 *
472 * @since 2.0.0
473 */
474 function handle_404() {
475 global $wp_query;
476
477 if ( !is_admin() && ( 0 == count( $wp_query->posts ) ) && !is_404() && !is_robots() && !is_search() && !is_home() ) {
478 // Don't 404 for these queries if they matched an object.
479 if ( ( is_tag() || is_category() || is_tax() || is_author() ) && $wp_query->get_queried_object() && !is_paged() ) {
480 if ( !is_404() )
481 status_header( 200 );
482 return;
483 }
484 $wp_query->set_404();
485 status_header( 404 );
486 nocache_headers();
487 } elseif ( !is_404() ) {
488 status_header( 200 );
489 }
490 }
491
492 /**
493 * Sets up all of the variables required by the WordPress environment.
494 *
495 * The action 'wp' has one parameter that references the WP object. It
496 * allows for accessing the properties and methods to further manipulate the
497 * object.
498 *
499 * @since 2.0.0
500 *
501 * @param string|array $query_args Passed to {@link parse_request()}
502 */
503 function main($query_args = '') {
504 $this->init();
505 $this->parse_request($query_args);
506 $this->send_headers();
507 $this->query_posts();
508 $this->handle_404();
509 $this->register_globals();
510 do_action_ref_array('wp', array(&$this));
511 }
512
513 /**
514 * PHP4 Constructor - Does nothing.
515 *
516 * Call main() method when ready to run setup.
517 *
518 * @since 2.0.0
519 *
520 * @return WP
521 */
522 function WP() {
523 // Empty.
524 }
525}
526
527/**
528 * WordPress Error class.
529 *
530 * Container for checking for WordPress errors and error messages. Return
531 * WP_Error and use {@link is_wp_error()} to check if this class is returned.
532 * Many core WordPress functions pass this class in the event of an error and
533 * if not handled properly will result in code errors.
534 *
535 * @package WordPress
536 * @since 2.1.0
537 */
538class WP_Error {
539 /**
540 * Stores the list of errors.
541 *
542 * @since 2.1.0
543 * @var array
544 * @access private
545 */
546 var $errors = array();
547
548 /**
549 * Stores the list of data for error codes.
550 *
551 * @since 2.1.0
552 * @var array
553 * @access private
554 */
555 var $error_data = array();
556
557 /**
558 * PHP4 Constructor - Sets up error message.
559 *
560 * If code parameter is empty then nothing will be done. It is possible to
561 * add multiple messages to the same code, but with other methods in the
562 * class.
563 *
564 * All parameters are optional, but if the code parameter is set, then the
565 * data parameter is optional.
566 *
567 * @since 2.1.0
568 *
569 * @param string|int $code Error code
570 * @param string $message Error message
571 * @param mixed $data Optional. Error data.
572 * @return WP_Error
573 */
574 function WP_Error($code = '', $message = '', $data = '') {
575 if ( empty($code) )
576 return;
577
578 $this->errors[$code][] = $message;
579
580 if ( ! empty($data) )
581 $this->error_data[$code] = $data;
582 }
583
584 /**
585 * Retrieve all error codes.
586 *
587 * @since 2.1.0
588 * @access public
589 *
590 * @return array List of error codes, if avaiable.
591 */
592 function get_error_codes() {
593 if ( empty($this->errors) )
594 return array();
595
596 return array_keys($this->errors);
597 }
598
599 /**
600 * Retrieve first error code available.
601 *
602 * @since 2.1.0
603 * @access public
604 *
605 * @return string|int Empty string, if no error codes.
606 */
607 function get_error_code() {
608 $codes = $this->get_error_codes();
609
610 if ( empty($codes) )
611 return '';
612
613 return $codes[0];
614 }
615
616 /**
617 * Retrieve all error messages or error messages matching code.
618 *
619 * @since 2.1.0
620 *
621 * @param string|int $code Optional. Retrieve messages matching code, if exists.
622 * @return array Error strings on success, or empty array on failure (if using codee parameter).
623 */
624 function get_error_messages($code = '') {
625 // Return all messages if no code specified.
626 if ( empty($code) ) {
627 $all_messages = array();
628 foreach ( (array) $this->errors as $code => $messages )
629 $all_messages = array_merge($all_messages, $messages);
630
631 return $all_messages;
632 }
633
634 if ( isset($this->errors[$code]) )
635 return $this->errors[$code];
636 else
637 return array();
638 }
639
640 /**
641 * Get single error message.
642 *
643 * This will get the first message available for the code. If no code is
644 * given then the first code available will be used.
645 *
646 * @since 2.1.0
647 *
648 * @param string|int $code Optional. Error code to retrieve message.
649 * @return string
650 */
651 function get_error_message($code = '') {
652 if ( empty($code) )
653 $code = $this->get_error_code();
654 $messages = $this->get_error_messages($code);
655 if ( empty($messages) )
656 return '';
657 return $messages[0];
658 }
659
660 /**
661 * Retrieve error data for error code.
662 *
663 * @since 2.1.0
664 *
665 * @param string|int $code Optional. Error code.
666 * @return mixed Null, if no errors.
667 */
668 function get_error_data($code = '') {
669 if ( empty($code) )
670 $code = $this->get_error_code();
671
672 if ( isset($this->error_data[$code]) )
673 return $this->error_data[$code];
674 return null;
675 }
676
677 /**
678 * Append more error messages to list of error messages.
679 *
680 * @since 2.1.0
681 * @access public
682 *
683 * @param string|int $code Error code.
684 * @param string $message Error message.
685 * @param mixed $data Optional. Error data.
686 */
687 function add($code, $message, $data = '') {
688 $this->errors[$code][] = $message;
689 if ( ! empty($data) )
690 $this->error_data[$code] = $data;
691 }
692
693 /**
694 * Add data for error code.
695 *
696 * The error code can only contain one error data.
697 *
698 * @since 2.1.0
699 *
700 * @param mixed $data Error data.
701 * @param string|int $code Error code.
702 */
703 function add_data($data, $code = '') {
704 if ( empty($code) )
705 $code = $this->get_error_code();
706
707 $this->error_data[$code] = $data;
708 }
709}
710
711/**
712 * Check whether variable is a WordPress Error.
713 *
714 * Looks at the object and if a WP_Error class. Does not check to see if the
715 * parent is also WP_Error, so can't inherit WP_Error and still use this
716 * function.
717 *
718 * @since 2.1.0
719 *
720 * @param mixed $thing Check if unknown variable is WordPress Error object.
721 * @return bool True, if WP_Error. False, if not WP_Error.
722 */
723function is_wp_error($thing) {
724 if ( is_object($thing) && is_a($thing, 'WP_Error') )
725 return true;
726 return false;
727}
728
729/**
730 * A class for displaying various tree-like structures.
731 *
732 * Extend the Walker class to use it, see examples at the below. Child classes
733 * do not need to implement all of the abstract methods in the class. The child
734 * only needs to implement the methods that are needed. Also, the methods are
735 * not strictly abstract in that the parameter definition needs to be followed.
736 * The child classes can have additional parameters.
737 *
738 * @package WordPress
739 * @since 2.1.0
740 * @abstract
741 */
742class Walker {
743 /**
744 * What the class handles.
745 *
746 * @since 2.1.0
747 * @var string
748 * @access public
749 */
750 var $tree_type;
751
752 /**
753 * DB fields to use.
754 *
755 * @since 2.1.0
756 * @var array
757 * @access protected
758 */
759 var $db_fields;
760
761 /**
762 * Max number of pages walked by the paged walker
763 *
764 * @since 2.7.0
765 * @var int
766 * @access protected
767 */
768 var $max_pages = 1;
769
770 /**
771 * Starts the list before the elements are added.
772 *
773 * Additional parameters are used in child classes. The args parameter holds
774 * additional values that may be used with the child class methods. This
775 * method is called at the start of the output list.
776 *
777 * @since 2.1.0
778 * @abstract
779 *
780 * @param string $output Passed by reference. Used to append additional content.
781 */
782 function start_lvl(&$output) {}
783
784 /**
785 * Ends the list of after the elements are added.
786 *
787 * Additional parameters are used in child classes. The args parameter holds
788 * additional values that may be used with the child class methods. This
789 * method finishes the list at the end of output of the elements.
790 *
791 * @since 2.1.0
792 * @abstract
793 *
794 * @param string $output Passed by reference. Used to append additional content.
795 */
796 function end_lvl(&$output) {}
797
798 /**
799 * Start the element output.
800 *
801 * Additional parameters are used in child classes. The args parameter holds
802 * additional values that may be used with the child class methods. Includes
803 * the element output also.
804 *
805 * @since 2.1.0
806 * @abstract
807 *
808 * @param string $output Passed by reference. Used to append additional content.
809 */
810 function start_el(&$output) {}
811
812 /**
813 * Ends the element output, if needed.
814 *
815 * Additional parameters are used in child classes. The args parameter holds
816 * additional values that may be used with the child class methods.
817 *
818 * @since 2.1.0
819 * @abstract
820 *
821 * @param string $output Passed by reference. Used to append additional content.
822 */
823 function end_el(&$output) {}
824
825 /**
826 * Traverse elements to create list from elements.
827 *
828 * Display one element if the element doesn't have any children otherwise,
829 * display the element and its children. Will only traverse up to the max
830 * depth and no ignore elements under that depth. It is possible to set the
831 * max depth to include all depths, see walk() method.
832 *
833 * This method shouldn't be called directly, use the walk() method instead.
834 *
835 * @since 2.5.0
836 *
837 * @param object $element Data object
838 * @param array $children_elements List of elements to continue traversing.
839 * @param int $max_depth Max depth to traverse.
840 * @param int $depth Depth of current element.
841 * @param array $args
842 * @param string $output Passed by reference. Used to append additional content.
843 * @return null Null on failure with no changes to parameters.
844 */
845 function display_element( $element, &$children_elements, $max_depth, $depth=0, $args, &$output ) {
846
847 if ( !$element )
848 return;
849
850 $id_field = $this->db_fields['id'];
851
852 //display this element
853 if ( is_array( $args[0] ) )
854 $args[0]['has_children'] = ! empty( $children_elements[$element->$id_field] );
855 $cb_args = array_merge( array(&$output, $element, $depth), $args);
856 call_user_func_array(array(&$this, 'start_el'), $cb_args);
857
858 $id = $element->$id_field;
859
860 // descend only when the depth is right and there are childrens for this element
861 if ( ($max_depth == 0 || $max_depth > $depth+1 ) && isset( $children_elements[$id]) ) {
862
863 foreach( $children_elements[ $id ] as $child ){
864
865 if ( !isset($newlevel) ) {
866 $newlevel = true;
867 //start the child delimiter
868 $cb_args = array_merge( array(&$output, $depth), $args);
869 call_user_func_array(array(&$this, 'start_lvl'), $cb_args);
870 }
871 $this->display_element( $child, $children_elements, $max_depth, $depth + 1, $args, $output );
872 }
873 unset( $children_elements[ $id ] );
874 }
875
876 if ( isset($newlevel) && $newlevel ){
877 //end the child delimiter
878 $cb_args = array_merge( array(&$output, $depth), $args);
879 call_user_func_array(array(&$this, 'end_lvl'), $cb_args);
880 }
881
882 //end this element
883 $cb_args = array_merge( array(&$output, $element, $depth), $args);
884 call_user_func_array(array(&$this, 'end_el'), $cb_args);
885 }
886
887 /**
888 * Display array of elements hierarchically.
889 *
890 * It is a generic function which does not assume any existing order of
891 * elements. max_depth = -1 means flatly display every element. max_depth =
892 * 0 means display all levels. max_depth > 0 specifies the number of
893 * display levels.
894 *
895 * @since 2.1.0
896 *
897 * @param array $elements
898 * @param int $max_depth
899 * @return string
900 */
901 function walk( $elements, $max_depth) {
902
903 $args = array_slice(func_get_args(), 2);
904 $output = '';
905
906 if ($max_depth < -1) //invalid parameter
907 return $output;
908
909 if (empty($elements)) //nothing to walk
910 return $output;
911
912 $id_field = $this->db_fields['id'];
913 $parent_field = $this->db_fields['parent'];
914
915 // flat display
916 if ( -1 == $max_depth ) {
917 $empty_array = array();
918 foreach ( $elements as $e )
919 $this->display_element( $e, $empty_array, 1, 0, $args, $output );
920 return $output;
921 }
922
923 /*
924 * need to display in hierarchical order
925 * separate elements into two buckets: top level and children elements
926 * children_elements is two dimensional array, eg.
927 * children_elements[10][] contains all sub-elements whose parent is 10.
928 */
929 $top_level_elements = array();
930 $children_elements = array();
931 foreach ( $elements as $e) {
932 if ( 0 == $e->$parent_field )
933 $top_level_elements[] = $e;
934 else
935 $children_elements[ $e->$parent_field ][] = $e;
936 }
937
938 /*
939 * when none of the elements is top level
940 * assume the first one must be root of the sub elements
941 */
942 if ( empty($top_level_elements) ) {
943
944 $first = array_slice( $elements, 0, 1 );
945 $root = $first[0];
946
947 $top_level_elements = array();
948 $children_elements = array();
949 foreach ( $elements as $e) {
950 if ( $root->$parent_field == $e->$parent_field )
951 $top_level_elements[] = $e;
952 else
953 $children_elements[ $e->$parent_field ][] = $e;
954 }
955 }
956
957 foreach ( $top_level_elements as $e )
958 $this->display_element( $e, $children_elements, $max_depth, 0, $args, $output );
959
960 /*
961 * if we are displaying all levels, and remaining children_elements is not empty,
962 * then we got orphans, which should be displayed regardless
963 */
964 if ( ( $max_depth == 0 ) && count( $children_elements ) > 0 ) {
965 $empty_array = array();
966 foreach ( $children_elements as $orphans )
967 foreach( $orphans as $op )
968 $this->display_element( $op, $empty_array, 1, 0, $args, $output );
969 }
970
971 return $output;
972 }
973
974 /**
975 * paged_walk() - produce a page of nested elements
976 *
977 * Given an array of hierarchical elements, the maximum depth, a specific page number,
978 * and number of elements per page, this function first determines all top level root elements
979 * belonging to that page, then lists them and all of their children in hierarchical order.
980 *
981 * @package WordPress
982 * @since 2.7
983 * @param $max_depth = 0 means display all levels; $max_depth > 0 specifies the number of display levels.
984 * @param $page_num the specific page number, beginning with 1.
985 * @return XHTML of the specified page of elements
986 */
987 function paged_walk( $elements, $max_depth, $page_num, $per_page ) {
988
989 /* sanity check */
990 if ( empty($elements) || $max_depth < -1 )
991 return '';
992
993 $args = array_slice( func_get_args(), 4 );
994 $output = '';
995
996 $id_field = $this->db_fields['id'];
997 $parent_field = $this->db_fields['parent'];
998
999 $count = -1;
1000 if ( -1 == $max_depth )
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