wp-includes/classes.php

   1 <?php
   2
   3 class WP_Query {
   4         var $query;
   5         var $query_vars;
   6         var $queried_object;
   7         var $queried_object_id;
   8         var $request;
   9
  10         var $posts;
  11         var $post_count = 0;
  12         var $current_post = -1;
  13         var $in_the_loop = false;
  14         var $post;
  15
  16         var $is_single = false;
  17         var $is_preview = false;
  18         var $is_page = false;
  19         var $is_archive = false;
  20         var $is_date = false;
  21         var $is_year = false;
  22         var $is_month = false;
  23         var $is_day = false;
  24         var $is_time = false;
  25         var $is_author = false;
  26         var $is_category = false;
  27         var $is_search = false;
  28         var $is_feed = false;
  29         var $is_trackback = false;
  30         var $is_home = false;
  31         var $is_404 = false;
  32         var $is_comments_popup = false;
  33         var $is_admin = false;
  34         var $is_attachment = false;
  35
  36         function init_query_flags() {
  37                 $this->is_single = false;
  38                 $this->is_page = false;
  39                 $this->is_archive = false;
  40                 $this->is_date = false;
  41                 $this->is_year = false;
  42                 $this->is_month = false;
  43                 $this->is_day = false;
  44                 $this->is_time = false;
  45                 $this->is_author = false;
  46                 $this->is_category = false;
  47                 $this->is_search = false;
  48                 $this->is_feed = false;
  49                 $this->is_trackback = false;
  50                 $this->is_home = false;
  51                 $this->is_404 = false;
  52                 $this->is_paged = false;
  53                 $this->is_admin = false;
  54                 $this->is_attachment = false;
  55         }
  56
  57         function init () {
  58                 unset($this->posts);
  59                 unset($this->query);
  60                 unset($this->query_vars);
  61                 unset($this->queried_object);
  62                 unset($this->queried_object_id);
  63                 $this->post_count = 0;
  64                 $this->current_post = -1;
  65                 $this->in_the_loop = false;
  66
  67                 $this->init_query_flags();
  68         }
  69
  70         // Reparse the query vars.
  71         function parse_query_vars() {
  72                 $this->parse_query('');
  73         }
  74
  75         // Parse a query string and set query type booleans.
  76         function parse_query ($query) {
  77                 if ( !empty($query) || !isset($this->query) ) {
  78                         $this->init();
  79                         parse_str($query, $qv);
  80                         $this->query = $query;
  81                         $this->query_vars = $qv;
  82                 }
  83
  84                 if ('404' == $qv['error']) {
  85                         $this->is_404 = true;
  86                         if ( !empty($query) ) {
  87                                 do_action('parse_query', array(&$this));
  88                         }
  89                         return;
  90                 }
  91
  92                 $qv['m'] =  (int) $qv['m'];
  93                 $qv['p'] =  (int) $qv['p'];
  94
  95                 // Compat.  Map subpost to attachment.
  96                 if ( '' != $qv['subpost'] )
  97                         $qv['attachment'] = $qv['subpost'];
  98                 if ( '' != $qv['subpost_id'] )
  99                         $qv['attachment_id'] = $qv['subpost_id'];
 100
 101                 if ( ('' != $qv['attachment']) || (int) $qv['attachment_id'] ) {
 102                         $this->is_single = true;
 103                         $this->is_attachment = true;
 104                 } elseif ('' != $qv['name']) {
 105                         $this->is_single = true;
 106                 } elseif ( $qv['p'] ) {
 107                         $this->is_single = true;
 108                 } elseif (('' != $qv['hour']) && ('' != $qv['minute']) &&('' != $qv['second']) && ('' != $qv['year']) && ('' != $qv['monthnum']) && ('' != $qv['day'])) {
 109                         // If year, month, day, hour, minute, and second are set, a single
 110                         // post is being queried.
 111                         $this->is_single = true;
 112                 } elseif ('' != $qv['static'] || '' != $qv['pagename'] || '' != $qv['page_id']) {
 113                         $this->is_page = true;
 114                         $this->is_single = false;
 115                 } elseif (!empty($qv['s'])) {
 116                         $this->is_search = true;
 117                         switch ($qv['show_post_type']) {
 118                         case 'page' :
 119                                 $this->is_page = true;
 120                                 break;
 121                         case 'attachment' :
 122                                 $this->is_attachment = true;
 123                                 break;
 124                         }
 125                 } else {
 126                 // Look for archive queries.  Dates, categories, authors.
 127
 128                         if ( (int) $qv['second']) {
 129                                 $this->is_time = true;
 130                                 $this->is_date = true;
 131                         }
 132
 133                         if ( (int) $qv['minute']) {
 134                                 $this->is_time = true;
 135                                 $this->is_date = true;
 136                         }
 137
 138                         if ( (int) $qv['hour']) {
 139                                 $this->is_time = true;
 140                                 $this->is_date = true;
 141                         }
 142
 143                         if ( (int) $qv['day']) {
 144                                 if (! $this->is_date) {
 145                                         $this->is_day = true;
 146                                         $this->is_date = true;
 147                                 }
 148                         }
 149
 150                         if ( (int)  $qv['monthnum']) {
 151                                 if (! $this->is_date) {
 152                                         $this->is_month = true;
 153                                         $this->is_date = true;
 154                                 }
 155                         }
 156
 157                         if ( (int)  $qv['year']) {
 158                                 if (! $this->is_date) {
 159                                         $this->is_year = true;
 160                                         $this->is_date = true;
 161                                 }
 162                         }
 163
 164                         if ( (int)  $qv['m']) {
 165                                 $this->is_date = true;
 166                                 if (strlen($qv['m']) > 9) {
 167                                         $this->is_time = true;
 168                                 } else if (strlen($qv['m']) > 7) {
 169                                         $this->is_day = true;
 170                                 } else if (strlen($qv['m']) > 5) {
 171                                         $this->is_month = true;
 172                                 } else {
 173                                         $this->is_year = true;
 174                                 }
 175                         }
 176
 177                         if ('' != $qv['w']) {
 178                                 $this->is_date = true;
 179                         }
 180
 181                         if (empty($qv['cat']) || ($qv['cat'] == '0')) {
 182                                 $this->is_category = false;
 183                         } else {
 184                                 if (stristr($qv['cat'],'-')) {
 185                                         $this->is_category = false;
 186                                 } else {
 187                                         $this->is_category = true;
 188                                 }
 189                         }
 190
 191                         if ('' != $qv['category_name']) {
 192                                 $this->is_category = true;
 193                         }
 194
 195                         if ((empty($qv['author'])) || ($qv['author'] == '0')) {
 196                                 $this->is_author = false;
 197                         } else {
 198                                 $this->is_author = true;
 199                         }
 200
 201                         if ('' != $qv['author_name']) {
 202                                 $this->is_author = true;
 203                         }
 204
 205                         if ( ($this->is_date || $this->is_author || $this->is_category)) {
 206                                 $this->is_archive = true;
 207                         }
 208
 209                         if ( 'attachment' == $qv['show_post_type'] ) {
 210                                 $this->is_attachment = true;
 211                         }
 212                 }
 213
 214                 if ('' != $qv['feed']) {
 215                         $this->is_feed = true;
 216                 }
 217
 218                 if ('' != $qv['tb']) {
 219                         $this->is_trackback = true;
 220                 }
 221
 222                 if ('' != $qv['paged']) {
 223                         $this->is_paged = true;
 224                 }
 225
 226                 if ('' != $qv['comments_popup']) {
 227                         $this->is_comments_popup = true;
 228                 }
 229
 230                 //if we're previewing inside the write screen
 231                 if ('' != $qv['preview']) {
 232                         $this->is_preview = true;
 233                 }
 234
 235                 if (strstr($_SERVER['PHP_SELF'], 'wp-admin/')) {
 236                         $this->is_admin = true;
 237                 }
 238
 239                 if ( ! ($this->is_attachment || $this->is_archive || $this->is_single || $this->is_page || $this->is_search || $this->is_feed || $this->is_trackback || $this->is_404 || $this->is_admin || $this->is_comments_popup)) {
 240                         $this->is_home = true;
 241                 }
 242
 243                 if ( !empty($query) ) {
 244                         do_action('parse_query', array(&$this));
 245                 }
 246         }
 247
 248         function set_404() {
 249                 $this->init_query_flags();
 250                 $this->is_404 = true;
 251         }
 252
 253         function get($query_var) {
 254                 if (isset($this->query_vars[$query_var])) {
 255                         return $this->query_vars[$query_var];
 256                 }
 257
 258                 return '';
 259         }
 260
 261         function set($query_var, $value) {
 262                 $this->query_vars[$query_var] = $value;
 263         }
 264
 265         function &get_posts() {
 266                 global $wpdb, $pagenow, $user_ID;
 267
 268                 do_action('pre_get_posts', array(&$this));
 269
 270                 // Shorthand.
 271                 $q = $this->query_vars;
 272
 273                 // First let's clear some variables
 274                 $whichcat = '';
 275                 $whichauthor = '';
 276                 $whichpage = '';
 277                 $result = '';
 278                 $where = '';
 279                 $limits = '';
 280                 $distinct = '';
 281                 $join = '';
 282
 283                 if ( !isset($q['posts_per_page']) || $q['posts_per_page'] == 0 )
 284                         $q['posts_per_page'] = get_settings('posts_per_page');
 285                 if ( !isset($q['what_to_show']) )
 286                         $q['what_to_show'] = get_settings('what_to_show');
 287                 if ( isset($q['showposts']) && $q['showposts'] ) {
 288                         $q['showposts'] = (int) $q['showposts'];
 289                         $q['posts_per_page'] = $q['showposts'];
 290                 }
 291                 if ( (isset($q['posts_per_archive_page']) && $q['posts_per_archive_page'] != 0) && ($this->is_archive || $this->is_search) )
 292                         $q['posts_per_page'] = $q['posts_per_archive_page'];
 293                 if ( !isset($q['nopaging']) ) {
 294                         if ($q['posts_per_page'] == -1) {
 295                                 $q['nopaging'] = true;
 296                         } else {
 297                                 $q['nopaging'] = false;
 298                         }
 299                 }
 300                 if ( $this->is_feed ) {
 301                         $q['posts_per_page'] = get_settings('posts_per_rss');
 302                         $q['what_to_show'] = 'posts';
 303                 }
 304
 305                 if (isset($q['page'])) {
 306                         $q['page'] = trim($q['page'], '/');
 307                         $q['page'] = (int) $q['page'];
 308                         $q['page'] = abs($q['page']);
 309                 }
 310
 311                 $add_hours = intval(get_settings('gmt_offset'));
 312                 $add_minutes = intval(60 * (get_settings('gmt_offset') - $add_hours));
 313                 $wp_posts_post_date_field = "post_date"; // "DATE_ADD(post_date, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)";
 314
 315                 // If a month is specified in the querystring, load that month
 316                 if ( (int) $q['m'] ) {
 317                         $q['m'] = '' . preg_replace('|[^0-9]|', '', $q['m']);
 318                         $where .= ' AND YEAR(post_date)=' . substr($q['m'], 0, 4);
 319                         if (strlen($q['m'])>5)
 320                                 $where .= ' AND MONTH(post_date)=' . substr($q['m'], 4, 2);
 321                         if (strlen($q['m'])>7)
 322                                 $where .= ' AND DAYOFMONTH(post_date)=' . substr($q['m'], 6, 2);
 323                         if (strlen($q['m'])>9)
 324                                 $where .= ' AND HOUR(post_date)=' . substr($q['m'], 8, 2);
 325                         if (strlen($q['m'])>11)
 326                                 $where .= ' AND MINUTE(post_date)=' . substr($q['m'], 10, 2);
 327                         if (strlen($q['m'])>13)
 328                                 $where .= ' AND SECOND(post_date)=' . substr($q['m'], 12, 2);
 329                 }
 330
 331                 if ( (int) $q['hour'] ) {
 332                         $q['hour'] = '' . intval($q['hour']);
 333                         $where .= " AND HOUR(post_date)='" . $q['hour'] . "'";
 334                 }
 335
 336                 if ( (int) $q['minute'] ) {
 337                         $q['minute'] = '' . intval($q['minute']);
 338                         $where .= " AND MINUTE(post_date)='" . $q['minute'] . "'";
 339                 }
 340
 341                 if ( (int) $q['second'] ) {
 342                         $q['second'] = '' . intval($q['second']);
 343                         $where .= " AND SECOND(post_date)='" . $q['second'] . "'";
 344                 }
 345
 346                 if ( (int) $q['year'] ) {
 347                         $q['year'] = '' . intval($q['year']);
 348                         $where .= " AND YEAR(post_date)='" . $q['year'] . "'";
 349                 }
 350
 351                 if ( (int) $q['monthnum'] ) {
 352                         $q['monthnum'] = '' . intval($q['monthnum']);
 353                         $where .= " AND MONTH(post_date)='" . $q['monthnum'] . "'";
 354                 }
 355
 356                 if ( (int) $q['day'] ) {
 357                         $q['day'] = '' . intval($q['day']);
 358                         $where .= " AND DAYOFMONTH(post_date)='" . $q['day'] . "'";
 359                 }
 360
 361                 // Compat.  Map subpost to attachment.
 362                 if ( '' != $q['subpost'] )
 363                         $q['attachment'] = $q['subpost'];
 364                 if ( '' != $q['subpost_id'] )
 365                         $q['attachment_id'] = $q['subpost_id'];
 366
 367                 if ('' != $q['name']) {
 368                         $q['name'] = sanitize_title($q['name']);
 369                         $where .= " AND post_name = '" . $q['name'] . "'";
 370                 } else if ('' != $q['pagename']) {
 371                         $q['pagename'] = str_replace('%2F', '/', urlencode(urldecode($q['pagename'])));
 372                         $page_paths = '/' . trim($q['pagename'], '/');
 373                         $q['pagename'] = sanitize_title(basename($page_paths));
 374                         $q['name'] = $q['pagename'];
 375                         $page_paths = explode('/', $page_paths);
 376                         foreach($page_paths as $pathdir)
 377                                 $page_path .= ($pathdir!=''?'/':'') . sanitize_title($pathdir);
 378
 379                         $all_page_ids = get_all_page_ids();
 380                         $reqpage = 0;
 381                         if (is_array($all_page_ids)) { foreach ( $all_page_ids as $page_id ) {
 382                                 $page = get_page($page_id);
 383                                 if ( $page->fullpath == $page_path ) {
 384                                         $reqpage = $page_id;
 385                                         break;
 386                                 }
 387                         } }
 388
 389                         $where .= " AND (ID = '$reqpage')";
 390                 } elseif ('' != $q['attachment']) {
 391                         $q['attachment'] = str_replace('%2F', '/', urlencode(urldecode($q['attachment'])));
 392                         $attach_paths = '/' . trim($q['attachment'], '/');
 393                         $q['attachment'] = sanitize_title(basename($attach_paths));
 394                         $q['name'] = $q['attachment'];
 395                         $where .= " AND post_name = '" . $q['attachment'] . "'";
 396                 }
 397
 398                 if ( (int) $q['w'] ) {
 399                         $q['w'] = ''.intval($q['w']);
 400                         $where .= " AND WEEK(post_date, 1)='" . $q['w'] . "'";
 401                 }
 402
 403                 if ( intval($q['comments_popup']) )
 404                         $q['p'] = intval($q['comments_popup']);
 405
 406                 // If a attachment is requested by number, let it supercede any post number.
 407                 if ( ($q['attachment_id'] != '') && (intval($q['attachment_id']) != 0) )
 408                         $q['p'] = (int) $q['attachment_id'];
 409
 410                 // If a post number is specified, load that post
 411                 if (($q['p'] != '') && intval($q['p']) != 0) {
 412                         $q['p'] =  (int) $q['p'];
 413                         $where = ' AND ID = ' . $q['p'];
 414                 }
 415
 416                 if (($q['page_id'] != '') && (intval($q['page_id']) != 0)) {
 417                         $q['page_id'] = intval($q['page_id']);
 418                         $q['p'] = $q['page_id'];
 419                         $where = ' AND ID = '.$q['page_id'];
 420                 }
 421
 422                 // If a search pattern is specified, load the posts that match
 423                 if (!empty($q['s'])) {
 424                         $q['s'] = addslashes_gpc($q['s']);
 425                         $search = ' AND (';
 426                         $q['s'] = preg_replace('/, +/', ' ', $q['s']);
 427                         $q['s'] = str_replace(',', ' ', $q['s']);
 428                         $q['s'] = str_replace('"', ' ', $q['s']);
 429                         $q['s'] = trim($q['s']);
 430                         if ($q['exact']) {
 431                                 $n = '';
 432                         } else {
 433                                 $n = '%';
 434                         }
 435                         if (!$q['sentence']) {
 436                                 $s_array = explode(' ',$q['s']);
 437                                 $q['search_terms'] = $s_array;
 438                                 $search .= '((post_title LIKE \''.$n.$s_array[0].$n.'\') OR (post_content LIKE \''.$n.$s_array[0].$n.'\'))';
 439                                 for ( $i = 1; $i < count($s_array); $i = $i + 1) {
 440                                         $search .= ' AND ((post_title LIKE \''.$n.$s_array[$i].$n.'\') OR (post_content LIKE \''.$n.$s_array[$i].$n.'\'))';
 441                                 }
 442                                 $search .= ' OR (post_title LIKE \''.$n.$q['s'].$n.'\') OR (post_content LIKE \''.$n.$q['s'].$n.'\')';
 443                                 $search .= ')';
 444                         } else {
 445                                 $search = ' AND ((post_title LIKE \''.$n.$q['s'].$n.'\') OR (post_content LIKE \''.$n.$q['s'].$n.'\'))';
 446                         }
 447                 }
 448
 449                 // Category stuff
 450
 451                 if ((empty($q['cat'])) || ($q['cat'] == '0') ||
 452                                 // Bypass cat checks if fetching specific posts
 453                                 ( $this->is_single || $this->is_page )) {
 454                         $whichcat='';
 455                 } else {
 456                         $q['cat'] = ''.urldecode($q['cat']).'';
 457                         $q['cat'] = addslashes_gpc($q['cat']);
 458                         if (stristr($q['cat'],'-')) {
 459                                 // Note: if we have a negative, we ignore all the positives. It must
 460                                 // always mean 'everything /except/ this one'. We should be able to do
 461                                 // multiple negatives but we don't :-(
 462                                 $eq = '!=';
 463                                 $andor = 'AND';
 464                                 $q['cat'] = explode('-',$q['cat']);
 465                                 $q['cat'] = intval($q['cat'][1]);
 466                         } else {
 467                                 $eq = '=';
 468                                 $andor = 'OR';
 469                         }
 470                         $join = " LEFT JOIN $wpdb->post2cat ON ($wpdb->posts.ID = $wpdb->post2cat.post_id) ";
 471                         $cat_array = preg_split('/[,\s]+/', $q['cat']);
 472                         $whichcat .= ' AND (category_id '.$eq.' '.intval($cat_array[0]);
 473                         $whichcat .= get_category_children($cat_array[0], ' '.$andor.' category_id '.$eq.' ');
 474                         for ($i = 1; $i < (count($cat_array)); $i = $i + 1) {
 475                                 $whichcat .= ' '.$andor.' category_id '.$eq.' '.intval($cat_array[$i]);
 476                                 $whichcat .= get_category_children($cat_array[$i], ' '.$andor.' category_id '.$eq.' ');
 477                         }
 478                         $whichcat .= ')';
 479                         if ($eq == '!=') {
 480                                 $q['cat'] = '-'.$q['cat']; // Put back the knowledge that we are excluding a category.
 481                         }
 482                 }
 483
 484                 // Category stuff for nice URIs
 485
 486                 global $cache_categories;
 487                 if ('' != $q['category_name']) {
 488                         $cat_paths = '/' . trim(urldecode($q['category_name']), '/');
 489                         $q['category_name'] = sanitize_title(basename($cat_paths));
 490                         $cat_paths = explode('/', $cat_paths);
 491                         foreach($cat_paths as $pathdir)
 492                                 $cat_path .= ($pathdir!=''?'/':'') . sanitize_title($pathdir);
 493
 494                         $all_cat_ids = get_all_category_ids();
 495                         $q['cat'] = 0; $partial_match = 0;
 496                         foreach ( $all_cat_ids as $cat_id ) {
 497                                 $cat = get_category($cat_id);
 498                                 if ( $cat->fullpath == $cat_path ) {
 499                                         $q['cat'] = $cat_id;
 500                                         break;
 501                                 } elseif ( $cat->category_nicename == $q['category_name'] ) {
 502                                         $partial_match = $cat_id;
 503                                 }
 504                         }
 505
 506                         //if we don't match the entire hierarchy fallback on just matching the nicename
 507                         if (!$q['cat'] && $partial_match) {
 508                                 $q['cat'] = $partial_match;
 509                         }
 510
 511                         $tables = ", $wpdb->post2cat, $wpdb->categories";
 512                         $join = " LEFT JOIN $wpdb->post2cat ON ($wpdb->posts.ID = $wpdb->post2cat.post_id) LEFT JOIN $wpdb->categories ON ($wpdb->post2cat.category_id = $wpdb->categories.cat_ID) ";
 513                         $whichcat = " AND (category_id = '" . $q['cat'] . "'";
 514                         $whichcat .= get_category_children($q['cat'], " OR category_id = ");
 515                         $whichcat .= ")";
 516                 }
 517
 518                 // Author/user stuff
 519
 520                 if ((empty($q['author'])) || ($q['author'] == '0')) {
 521                         $whichauthor='';
 522                 } else {
 523                         $q['author'] = ''.urldecode($q['author']).'';
 524                         $q['author'] = addslashes_gpc($q['author']);
 525                         if (stristr($q['author'], '-')) {
 526                                 $eq = '!=';
 527                                 $andor = 'AND';
 528                                 $q['author'] = explode('-', $q['author']);
 529                                 $q['author'] = ''.intval($q['author'][1]);
 530                         } else {
 531                                 $eq = '=';
 532                                 $andor = 'OR';
 533                         }
 534                         $author_array = preg_split('/[,\s]+/', $q['author']);
 535                         $whichauthor .= ' AND (post_author '.$eq.' '.intval($author_array[0]);
 536                         for ($i = 1; $i < (count($author_array)); $i = $i + 1) {
 537                                 $whichauthor .= ' '.$andor.' post_author '.$eq.' '.intval($author_array[$i]);
 538                         }
 539                         $whichauthor .= ')';
 540                 }
 541
 542                 // Author stuff for nice URIs
 543
 544                 if ('' != $q['author_name']) {
 545                         if (stristr($q['author_name'],'/')) {
 546                                 $q['author_name'] = explode('/',$q['author_name']);
 547                                 if ($q['author_name'][count($q['author_name'])-1]) {
 548                                         $q['author_name'] = $q['author_name'][count($q['author_name'])-1];#no trailing slash
 549                                 } else {
 550                                         $q['author_name'] = $q['author_name'][count($q['author_name'])-2];#there was a trailling slash
 551                                 }
 552                         }
 553                         $q['author_name'] = sanitize_title($q['author_name']);
 554                         $q['author'] = $wpdb->get_var("SELECT ID FROM $wpdb->users WHERE user_nicename='".$q['author_name']."'");
 555                         $whichauthor .= ' AND (post_author = '.intval($q['author']).')';
 556                 }
 557
 558                 $where .= $search.$whichcat.$whichauthor;
 559
 560                 if ((empty($q['order'])) || ((strtoupper($q['order']) != 'ASC') && (strtoupper($q['order']) != 'DESC'))) {
 561                         $q['order']='DESC';
 562                 }
 563
 564                 // Order by
 565                 if (empty($q['orderby'])) {
 566                         $q['orderby']='date '.$q['order'];
 567                 } else {
 568                         // Used to filter values
 569                         $allowed_keys = array('author', 'date', 'category', 'title', 'modified');
 570                         $q['orderby'] = urldecode($q['orderby']);
 571                         $q['orderby'] = addslashes_gpc($q['orderby']);
 572                         $orderby_array = explode(' ',$q['orderby']);
 573                         if (!in_array($orderby_array[0],$allowed_keys)) {
 574                                 $orderby_array[0] = 'date';
 575                         }
 576                         $q['orderby'] = $orderby_array[0].' '.$q['order'];
 577                         if (count($orderby_array)>1) {
 578                                 for ($i = 1; $i < (count($orderby_array)); $i = $i + 1) {
 579                                         // Only allow certain values for safety
 580                                         if (in_array($orderby_array[$i],$allowed_keys)) {
 581                                                 $q['orderby'] .= ',post_'.$orderby_array[$i].' '.$q['order'];
 582                                         }
 583                                 }
 584                         }
 585                 }
 586
 587                 $now = gmdate('Y-m-d H:i:59');
 588
 589                 //only select past-dated posts, except if a logged in user is viewing a single: then, if they
 590                 //can edit the post, we let them through
 591                 if ($pagenow != 'post.php' && $pagenow != 'edit.php' && !($this->is_single && $user_ID)) {
 592                         $where .= " AND post_date_gmt <= '$now'";
 593                         $distinct = 'DISTINCT';
 594                 }
 595
 596                 if ( $this->is_attachment ) {
 597                         $where .= ' AND (post_status = "attachment")';
 598                 } elseif ($this->is_page) {
 599                         $where .= ' AND (post_status = "static")';
 600                 } elseif ($this->is_single) {
 601                         $where .= ' AND (post_status != "static")';
 602                 } else {
 603                         $where .= ' AND (post_status = "publish"';
 604
 605                         if (isset($user_ID) && ('' != intval($user_ID)))
 606                                 $where .= " OR post_author = $user_ID AND post_status != 'draft' AND post_status != 'static')";
 607                         else
 608                                 $where .= ')';
 609                 }
 610
 611                 if (! $this->is_attachment )
 612                         $where .= ' AND post_status != "attachment"';
 613
 614                 // Apply filters on where and join prior to paging so that any
 615                 // manipulations to them are reflected in the paging by day queries.
 616                 $where = apply_filters('posts_where', $where);
 617                 $join = apply_filters('posts_join', $join);
 618
 619                 // Paging
 620                 if (empty($q['nopaging']) && ! $this->is_single && ! $this->is_page) {
 621                         $page = abs(intval($q['paged']));
 622                         if (empty($page)) {
 623                                 $page = 1;
 624                         }
 625
 626                         if (($q['what_to_show'] == 'posts')) {
 627                                 $q['offset'] = abs(intval($q['offset']));
 628                                 if ( empty($q['offset']) ) {
 629                                         $pgstrt = '';
 630                                         $pgstrt = (intval($page) -1) * $q['posts_per_page'] . ', ';
 631                                         $limits = 'LIMIT '.$pgstrt.$q['posts_per_page'];
 632                                 } else { // we're ignoring $page and using 'offset'
 633                                         $pgstrt = $q['offset'] . ', ';
 634                                         $limits = 'LIMIT ' . $pgstrt . $q['posts_per_page'];
 635                                 }
 636                         } elseif ($q['what_to_show'] == 'days') {
 637                                 $startrow = $q['posts_per_page'] * (intval($page)-1);
 638                                 $start_date = $wpdb->get_var("SELECT max(post_date) FROM $wpdb->posts $join WHERE (1=1) $where GROUP BY year(post_date), month(post_date), dayofmonth(post_date) ORDER BY post_date DESC LIMIT $startrow,1");
 639                                 $endrow = $startrow + $q['posts_per_page'] - 1;
 640                                 $end_date = $wpdb->get_var("SELECT min(post_date) FROM $wpdb->posts $join WHERE (1=1) $where GROUP BY year(post_date), month(post_date), dayofmonth(post_date) ORDER BY post_date DESC LIMIT $endrow,1");
 641
 642                                 if ($page > 1) {
 643                                         $where .= " AND post_date >= '$end_date' AND post_date <= '$start_date'";
 644                                 } else {
 645                                         $where .= " AND post_date >= '$end_date'";
 646                                 }
 647                         }
 648                 }
 649
 650                 // Apply post-paging filters on where and join.  Only plugins that
 651                 // manipulate paging queries should use these hooks.
 652                 $where = apply_filters('posts_where_paged', $where);
 653                 $groupby = " $wpdb->posts.ID ";
 654                 $groupby = apply_filters('posts_groupby', $groupby);
 655                 $join = apply_filters('posts_join_paged', $join);
 656                 $orderby = "post_" . $q['orderby'];
 657                 $orderby = apply_filters('posts_orderby', $orderby);
 658                 $request = " SELECT $distinct * FROM $wpdb->posts $join WHERE 1=1" . $where . " GROUP BY " . $groupby . " ORDER BY " . $orderby . " $limits";
 659                 $this->request = apply_filters('posts_request', $request);
 660
 661                 $this->posts = $wpdb->get_results($this->request);
 662
 663                 // Check post status to determine if post should be displayed.
 664                 if ( !empty($this->posts) && $this->is_single ) {
 665                         $status = get_post_status($this->posts[0]);
 666                         if ( ('publish' != $status) && ('static' != $status) ) {
 667                                 if ( ! (isset($user_ID) && ('' != intval($user_ID))) ) {
 668                                         // User must be logged in to view unpublished posts.
 669                                         $this->posts = array();
 670                                 } else {
 671                                         if ('draft' == $status) {
 672                                                 // User must have edit permissions on the draft to preview.
 673                                                 if (! current_user_can('edit_post', $this->posts[0]->ID)) {
 674                                                         $this->posts = array();
 675                                                 } else {
 676                                                         $this->is_preview = true;
 677                                                         $this->posts[0]->post_date = current_time('mysql');
 678                                                 }
 679                                         } else {
 680                                                 if (! current_user_can('read_post', $this->posts[0]->ID))
 681                                                         $this->posts = array();
 682                                         }
 683                                 }
 684                         } else {
 685                                 if (mysql2date('U', $this->posts[0]->post_date_gmt) > mysql2date('U', $now)) { //it's future dated
 686                                         $this->is_preview = true;
 687                                         if (!current_user_can('edit_post', $this->posts[0]->ID)) {
 688                                                 $this->posts = array ( );
 689                                         }
 690                                 }
 691                         }
 692                 }
 693
 694                 update_post_caches($this->posts);
 695
 696                 $this->posts = apply_filters('the_posts', $this->posts);
 697                 $this->post_count = count($this->posts);
 698                 if ($this->post_count > 0) {
 699                         $this->post = $this->posts[0];
 700                 }
 701
 702                 // Save any changes made to the query vars.
 703                 $this->query_vars = $q;
 704                 return $this->posts;
 705         }
 706
 707         function next_post() {
 708
 709                 $this->current_post++;
 710
 711                 $this->post = $this->posts[$this->current_post];
 712                 return $this->post;
 713         }
 714
 715         function the_post() {
 716                 global $post;
 717                 $this->in_the_loop = true;
 718                 $post = $this->next_post();
 719                 setup_postdata($post);
 720
 721                 if ( $this->current_post == 0 ) // loop has just started
 722                         do_action('loop_start');
 723         }
 724
 725         function have_posts() {
 726                 if ($this->current_post + 1 < $this->post_count) {
 727                         return true;
 728                 } elseif ($this->current_post + 1 == $this->post_count) {
 729                         do_action('loop_end');
 730                         // Do some cleaning up after the loop
 731                         $this->rewind_posts();
 732                 }
 733
 734                 $this->in_the_loop = false;
 735                 return false;
 736         }
 737
 738         function rewind_posts() {
 739                 $this->current_post = -1;
 740                 if ($this->post_count > 0) {
 741                         $this->post = $this->posts[0];
 742                 }
 743         }
 744
 745         function &query($query) {
 746                 $this->parse_query($query);
 747                 return $this->get_posts();
 748         }
 749
 750         function get_queried_object() {
 751                 if (isset($this->queried_object)) {
 752                         return $this->queried_object;
 753                 }
 754
 755                 $this->queried_object = NULL;
 756                 $this->queried_object_id = 0;
 757
 758                 if ($this->is_category) {
 759                         $cat = $this->get('cat');
 760                         $category = &get_category($cat);
 761                         $this->queried_object = &$category;
 762                         $this->queried_object_id = $cat;
 763                 } else if ($this->is_single) {
 764                         $this->queried_object = $this->post;
 765                         $this->queried_object_id = $this->post->ID;
 766                 } else if ($this->is_page) {
 767                         $this->queried_object = $this->post;
 768                         $this->queried_object_id = $this->post->ID;
 769                 } else if ($this->is_author) {
 770                         $author_id = $this->get('author');
 771                         $author = get_userdata($author_id);
 772                         $this->queried_object = $author;
 773                         $this->queried_object_id = $author_id;
 774                 }
 775
 776                 return $this->queried_object;
 777         }
 778
 779         function get_queried_object_id() {
 780                 $this->get_queried_object();
 781
 782                 if (isset($this->queried_object_id)) {
 783                         return $this->queried_object_id;
 784                 }
 785
 786                 return 0;
 787         }
 788
 789         function WP_Query ($query = '') {
 790                 if (! empty($query)) {
 791                         $this->query($query);
 792                 }
 793         }
 794 }
 795
 796 class retrospam_mgr {
 797         var $spam_words;
 798         var $comments_list;
 799         var $found_comments;
 800
 801         function retrospam_mgr() {
 802                 global $wpdb;
 803
 804                 $list = explode("\n", get_settings('moderation_keys') );
 805                 $list = array_unique( $list );
 806                 $this->spam_words = $list;
 807
 808                 $this->comment_list = $wpdb->get_results("SELECT comment_ID AS ID, comment_content AS text, comment_approved AS approved, comment_author_url AS url, comment_author_ip AS ip, comment_author_email AS email FROM $wpdb->comments ORDER BY comment_ID ASC");
 809         }       // End of class constructor
 810
 811         function move_spam( $id_list ) {
 812                 global $wpdb;
 813                 $cnt = 0;
 814                 $id_list = explode( ',', $id_list );
 815
 816                 foreach ( $id_list as $comment ) {
 817                         if ( $wpdb->query("update $wpdb->comments set comment_approved = '0' where comment_ID = '$comment'") ) {
 818                                 $cnt++;
 819                         }
 820                 }
 821                 echo "<div class='updated'><p>$cnt comment";
 822                 if ($cnt != 1 ) echo "s";
 823                 echo " moved to the moderation queue.</p></div>\n";
 824         }       // End function move_spam
 825
 826         function find_spam() {
 827                 $in_queue = 0;
 828
 829                 foreach( $this->comment_list as $comment ) {
 830                         if( $comment->approved == 1 ) {
 831                                 foreach( $this->spam_words as $word ) {
 832                                         $word = trim($word);
 833                                         if ( empty( $word ) )
 834                                                 continue;
 835                                         $fulltext = strtolower($comment->email.' '.$comment->url.' '.$comment->ip.' '.$comment->text);
 836                                         if( false !== strpos( $fulltext, strtolower($word) ) ) {
 837                                                 $this->found_comments[] = $comment->ID;
 838                                                 break;
 839                                         }
 840                                 }
 841                         } else {
 842                                 $in_queue++;
 843                         }
 844                 }
 845                 return array( 'found' => $this->found_comments, 'in_queue' => $in_queue );
 846         }       // End function find_spam
 847
 848         function display_edit_form( $counters ) {
 849                 $numfound = count($counters[found]);
 850                 $numqueue = $counters[in_queue];
 851
 852                 $body = '<p>' . sprintf(__('Suspected spam comments: <strong>%s</strong>'), $numfound) . '</p>';
 853
 854                 if ( count($counters[found]) > 0 ) {
 855                         $id_list = implode( ',', $counters[found] );
 856                         $body .= '<p><a href="options-discussion.php?action=retrospam&amp;move=true&amp;ids='.$id_list.'">'. __('Move suspect comments to moderation queue &raquo;') . '</a></p>';
 857
 858                 }
 859                 $head = '<div class="wrap"><h2>' . __('Check Comments Results:') . '</h2>';
 860
 861                 $foot .= '<p><a href="options-discussion.php">' . __('&laquo; Return to Discussion Options page.') . '</a></p></div>';
 862
 863                 return $head . $body . $foot;
 864         }       // End function display_edit_form
 865
 866 }
 867
 868 class WP_Rewrite {
 869         var $permalink_structure;
 870         var $category_base;
 871         var $category_structure;
 872         var $author_base = 'author';
 873         var $author_structure;
 874         var $date_structure;
 875         var $page_structure;
 876         var $search_base = 'search';
 877         var $search_structure;
 878         var $comments_base = 'comments';
 879         var $feed_base = 'feed';
 880         var $comments_feed_structure;
 881         var $feed_structure;
 882         var $front;
 883         var $root = '';
 884         var $index = 'index.php';
 885         var $matches = '';
 886         var $rules;
 887         var $use_verbose_rules = false;
 888         var $rewritecode =
 889                 array(
 890                                         '%year%',
 891                                         '%monthnum%',
 892                                         '%day%',
 893                                         '%hour%',
 894                                         '%minute%',
 895                                         '%second%',
 896                                         '%postname%',
 897                                         '%post_id%',
 898                                         '%category%',
 899                                         '%author%',
 900                                         '%pagename%',
 901                                         '%search%'
 902                                         );
 903
 904         var $rewritereplace =
 905                 array(
 906                                         '([0-9]{4})',
 907                                         '([0-9]{1,2})',
 908                                         '([0-9]{1,2})',
 909                                         '([0-9]{1,2})',
 910                                         '([0-9]{1,2})',
 911                                         '([0-9]{1,2})',
 912                                         '([^/]+)',
 913                                         '([0-9]+)',
 914                                         '(.+?)',
 915                                         '([^/]+)',
 916                                         '([^/]+)',
 917                                         '(.+)'
 918                                         );
 919
 920         var $queryreplace =
 921                 array (
 922                                         'year=',
 923                                         'monthnum=',
 924                                         'day=',
 925                                         'hour=',
 926                                         'minute=',
 927                                         'second=',
 928                                         'name=',
 929                                         'p=',
 930                                         'category_name=',
 931                                         'author_name=',
 932                                         'pagename=',
 933                                         's='
 934                                         );
 935
 936         var $feeds = array ('feed', 'rdf', 'rss', 'rss2', 'atom');
 937
 938         function using_permalinks() {
 939                 if (empty($this->permalink_structure))
 940                         return false;
 941                 else
 942                         return true;
 943         }
 944
 945         function using_index_permalinks() {
 946                 if (empty($this->permalink_structure)) {
 947                         return false;
 948                 }
 949
 950                 // If the index is not in the permalink, we're using mod_rewrite.
 951                 if (preg_match('#^/*' . $this->index . '#', $this->permalink_structure)) {
 952                         return true;
 953                 }
 954
 955                 return false;
 956         }
 957
 958         function using_mod_rewrite_permalinks() {
 959                 if ( $this->using_permalinks() && ! $this->using_index_permalinks())
 960                         return true;
 961                 else
 962                         return false;
 963         }
 964
 965         function preg_index($number) {
 966                 $match_prefix = '$';
 967                 $match_suffix = '';
 968
 969                 if (! empty($this->matches)) {
 970                         $match_prefix = '$' . $this->matches . '[';
 971                         $match_suffix = ']';
 972                 }
 973
 974                 return "$match_prefix$number$match_suffix";
 975         }
 976
 977         function page_rewrite_rules() {
 978                 $uris = get_settings('page_uris');
 979                 $attachment_uris = get_settings('page_attachment_uris');
 980
 981                 $rewrite_rules = array();
 982                 $page_structure = $this->get_page_permastruct();
 983                 if( is_array( $attachment_uris ) ) {
 984                         foreach ($attachment_uris as $uri => $pagename) {
 985                                 $this->add_rewrite_tag('%pagename%', "($uri)", 'attachment=');
 986                                 $rewrite_rules = array_merge($rewrite_rules, $this->generate_rewrite_rules($page_structure));
 987                         }
 988                 }
 989                 if( is_array( $uris ) ) {
 990                         foreach ($uris as $uri => $pagename) {
 991                                 $this->add_rewrite_tag('%pagename%', "($uri)", 'pagename=');
 992                                 $rewrite_rules = array_merge($rewrite_rules, $this->generate_rewrite_rules($page_structure));
 993                         }
 994                 }
 995
 996                 return $rewrite_rules;
 997         }
 998
 999         function get_date_permastruct() {
1000                 if (isset($this->date_structure)) {
1001                         return $this->date_structure;
1002                 }
1003
1004                 if (empty($this->permalink_structure)) {
1005                         $this->date_structure = '';
1006                         return false;
1007                 }
1008
1009                 // The date permalink must have year, month, and day separated by slashes.
1010                 $endians = array('%year%/%monthnum%/%day%', '%day%/%monthnum%/%year%', '%monthnum%/%day%/%year%');
1011
1012                 $this->date_structure = '';
1013                 $date_endian = '';
1014
1015                 foreach ($endians as $endian) {
1016                         if (false !== strpos($this->permalink_structure, $endian)) {
1017                                 $date_endian= $endian;
1018                                 break;
1019                         }
1020                 }
1021
1022                 if ( empty($date_endian) )
1023                         $date_endian = '%year%/%monthnum%/%day%';
1024
1025                 // Do not allow the date tags and %post_id% to overlap in the permalink
1026                 // structure. If they do, move the date tags to $front/date/.
1027                 $front = $this->front;
1028                 preg_match_all('/%.+?%/', $this->permalink_structure, $tokens);
1029                 $tok_index = 1;
1030                 foreach ($tokens[0] as $token) {
1031                         if ( ($token == '%post_id%') && ($tok_index <= 3) ) {
1032                                 $front = $front . 'date/';
1033                                 break;
1034                         }
1035                 }
1036
1037                 $this->date_structure = $front . $date_endian;
1038
1039                 return $this->date_structure;
1040         }
1041
1042         function get_year_permastruct() {
1043                 $structure = $this->get_date_permastruct($this->permalink_structure);
1044
1045                 if (empty($structure)) {
1046                         return false;
1047                 }
1048
1049                 $structure = str_replace('%monthnum%', '', $structure);
1050                 $structure = str_replace('%day%', '', $structure);
1051
1052                 $structure = preg_replace('#/+#', '/', $structure);
1053
1054                 return $structure;
1055         }
1056
1057         function get_month_permastruct() {
1058                 $structure = $this->get_date_permastruct($this->permalink_structure);
1059
1060                 if (empty($structure)) {
1061                         return false;
1062                 }
1063
1064                 $structure = str_replace('%day%', '', $structure);
1065
1066                 $structure = preg_replace('#/+#', '/', $structure);
1067
1068                 return $structure;
1069         }
1070
1071         function get_day_permastruct() {
1072                 return $this->get_date_permastruct($this->permalink_structure);
1073         }
1074
1075         function get_category_permastruct() {
1076                 if (isset($this->category_structure)) {
1077                         return $this->category_structure;
1078                 }
1079
1080                 if (empty($this->permalink_structure)) {
1081                         $this->category_structure = '';
1082                         return false;
1083                 }
1084
1085                 if (empty($this->category_base))
1086                         $this->category_structure = $this->front . 'category/';
1087                 else
1088                         $this->category_structure = $this->category_base . '/';
1089
1090                 $this->category_structure .= '%category%';
1091
1092                 return $this->category_structure;
1093         }
1094
1095         function get_author_permastruct() {
1096                 if (isset($this->author_structure)) {
1097                         return $this->author_structure;
1098                 }
1099
1100                 if (empty($this->permalink_structure)) {
1101                         $this->author_structure = '';
1102                         return false;
1103                 }
1104
1105                 $this->author_structure = $this->front . $this->author_base . '/%author%';
1106
1107                 return $this->author_structure;
1108         }
1109
1110         function get_search_permastruct() {
1111                 if (isset($this->search_structure)) {
1112                         return $this->search_structure;
1113                 }
1114
1115                 if (empty($this->permalink_structure)) {
1116                         $this->search_structure = '';
1117                         return false;
1118                 }
1119
1120                 $this->search_structure = $this->root . $this->search_base . '/%search%';
1121
1122                 return $this->search_structure;
1123         }
1124
1125         function get_page_permastruct() {
1126                 if (isset($this->page_structure)) {
1127                         return $this->page_structure;
1128                 }
1129
1130                 if (empty($this->permalink_structure)) {
1131                         $this->page_structure = '';
1132                         return false;
1133                 }
1134
1135                 $this->page_structure = $this->root . '%pagename%';
1136
1137                 return $this->page_structure;
1138         }
1139
1140         function get_feed_permastruct() {
1141                 if (isset($this->feed_structure)) {
1142                         return $this->feed_structure;
1143                 }
1144
1145                 if (empty($this->permalink_structure)) {
1146                         $this->feed_structure = '';
1147                         return false;
1148                 }
1149
1150                 $this->feed_structure = $this->root . $this->feed_base . '/%feed%';
1151
1152                 return $this->feed_structure;
1153         }
1154
1155         function get_comment_feed_permastruct() {
1156                 if (isset($this->comment_feed_structure)) {
1157                         return $this->comment_feed_structure;
1158                 }
1159
1160                 if (empty($this->permalink_structure)) {
1161                         $this->comment_feed_structure = '';
1162                         return false;
1163                 }
1164
1165                 $this->comment_feed_structure = $this->root . $this->comments_base . '/' . $this->feed_base . '/%feed%';
1166
1167                 return $this->comment_feed_structure;
1168         }
1169
1170         function add_rewrite_tag($tag, $pattern, $query) {
1171                 // If the tag already exists, replace the existing pattern and query for
1172                 // that tag, otherwise add the new tag, pattern, and query to the end of
1173                 // the arrays.
1174                 $position = array_search($tag, $this->rewritecode);
1175                 if (FALSE !== $position && NULL !== $position) {
1176                         $this->rewritereplace[$position] = $pattern;
1177                         $this->queryreplace[$position] = $query;
1178                 } else {
1179                         $this->rewritecode[] = $tag;
1180                         $this->rewritereplace[] = $pattern;
1181                         $this->queryreplace[] = $query;
1182                 }
1183         }
1184
1185         function generate_rewrite_rules($permalink_structure, $paged = true, $feed = true, $forcomments = false, $walk_dirs = true) {
1186                 $feedregex2 = '';
1187                 foreach ($this->feeds as $feed_name) {
1188                         $feedregex2 .= $feed_name . '|';
1189                 }
1190                 $feedregex2 = '(' . trim($feedregex2, '|') .  ')/?$';
1191                 $feedregex = $this->feed_base  . '/' . $feedregex2;
1192
1193                 $trackbackregex = 'trackback/?$';
1194                 $pageregex = 'page/?([0-9]{1,})/?$';
1195
1196                 $front = substr($permalink_structure, 0, strpos($permalink_structure, '%'));
1197                 preg_match_all('/%.+?%/', $permalink_structure, $tokens);
1198
1199                 $num_tokens = count($tokens[0]);
1200
1201                 $index = $this->index;
1202                 $feedindex = $index;
1203                 $trackbackindex = $index;
1204                 for ($i = 0; $i < $num_tokens; ++$i) {
1205                         if (0 < $i) {
1206                                 $queries[$i] = $queries[$i - 1] . '&';
1207                         }
1208
1209                         $query_token = str_replace($this->rewritecode, $this->queryreplace, $tokens[0][$i]) . $this->preg_index($i+1);
1210                         $queries[$i] .= $query_token;
1211                 }
1212
1213                 $structure = $permalink_structure;
1214                 if ($front != '/') {
1215                         $structure = str_replace($front, '', $structure);
1216                 }
1217                 $structure = trim($structure, '/');
1218                 if ($walk_dirs) {
1219                         $dirs = explode('/', $structure);
1220                 } else {
1221                         $dirs[] = $structure;
1222                 }
1223                 $num_dirs = count($dirs);
1224
1225                 $front = preg_replace('|^/+|', '', $front);
1226
1227                 $post_rewrite = array();
1228                 $struct = $front;
1229                 for ($j = 0; $j < $num_dirs; ++$j) {
1230                         $struct .= $dirs[$j] . '/';
1231                         $struct = ltrim($struct, '/');
1232                         $match = str_replace($this->rewritecode, $this->rewritereplace, $struct);
1233                         $num_toks = preg_match_all('/%.+?%/', $struct, $toks);
1234                         $query = $queries[$num_toks - 1];
1235
1236                         $pagematch = $match . $pageregex;
1237                         $pagequery = $index . '?' . $query . '&paged=' . $this->preg_index($num_toks + 1);
1238
1239                         $feedmatch = $match . $feedregex;
1240                         $feedquery = $feedindex . '?' . $query . '&feed=' . $this->preg_index($num_toks + 1);
1241
1242                         $feedmatch2 = $match . $feedregex2;
1243                         $feedquery2 = $feedindex . '?' . $query . '&feed=' . $this->preg_index($num_toks + 1);
1244
1245                         if ($forcomments) {
1246                                 $feedquery .= '&withcomments=1';
1247                                 $feedquery2 .= '&withcomments=1';
1248                         }
1249
1250                         $rewrite = array();
1251                         if ($feed)
1252                                 $rewrite = array($feedmatch => $feedquery, $feedmatch2 => $feedquery2);
1253                         if ($paged)
1254                                 $rewrite = array_merge($rewrite, array($pagematch => $pagequery));
1255
1256                         if ($num_toks) {
1257                                 $post = false;
1258                                 $page = false;
1259                                 if (strstr($struct, '%postname%') || strstr($struct, '%post_id%')
1260                                                 || strstr($struct, '%pagename%')
1261                                                 || (strstr($struct, '%year%') &&  strstr($struct, '%monthnum%') && strstr($struct, '%day%') && strstr($struct, '%hour%') && strstr($struct, '%minute') && strstr($struct, '%second%'))) {
1262                                         $post = true;
1263                                         if  ( strstr($struct, '%pagename%') )
1264                                                 $page = true;
1265                                         $trackbackmatch = $match . $trackbackregex;
1266                                         $trackbackquery = $trackbackindex . '?' . $query . '&tb=1';
1267                                         $match = rtrim($match, '/');
1268                                         $submatchbase = str_replace(array('(',')'),'',$match);
1269                                         $sub1 = $submatchbase . '/([^/]+)/';
1270                                         $sub1tb = $sub1 . $trackbackregex;
1271                                         $sub1feed = $sub1 . $feedregex;
1272                                         $sub1feed2 = $sub1 . $feedregex2;
1273                                         $sub1 .= '?$';
1274                                         $sub2 = $submatchbase . '/attachment/([^/]+)/';
1275                                         $sub2tb = $sub2 . $trackbackregex;
1276                                         $sub2feed = $sub2 . $feedregex;
1277                                         $sub2feed2 = $sub2 . $feedregex2;
1278                                         $sub2 .= '?$';
1279                                         $subquery = $index . '?attachment=' . $this->preg_index(1);
1280                                         $subtbquery = $subquery . '&tb=1';
1281                                         $subfeedquery = $subquery . '&feed=' . $this->preg_index(2);
1282                                         $match = $match . '(/[0-9]+)?/?$';
1283                                         $query = $index . '?' . $query . '&page=' . $this->preg_index($num_toks + 1);
1284                                 } else {
1285                                         $match .= '?$';
1286                                         $query = $index . '?' . $query;
1287                                 }
1288
1289                                 $rewrite = array_merge($rewrite, array($match => $query));
1290
1291                                 if ($post) {
1292                                         $rewrite = array_merge(array($trackbackmatch => $trackbackquery), $rewrite);
1293                                         if ( ! $page )
1294                                                 $rewrite = array_merge($rewrite, array($sub1 => $subquery, $sub1tb => $subtbquery, $sub1feed => $subfeedquery, $sub1feed2 => $subfeedquery));
1295                                         $rewrite = array_merge($rewrite, array($sub2 => $subquery, $sub2tb => $subtbquery, $sub2feed => $subfeedquery, $sub2feed2 => $subfeedquery));
1296                                 }
1297                         }
1298                         $post_rewrite = array_merge($rewrite, $post_rewrite);
1299                 }
1300                 return $post_rewrite;
1301         }
1302
1303         function generate_rewrite_rule($permalink_structure, $walk_dirs = false) {
1304                 return $this->generate_rewrite_rules($permalink_structure, false, false, false, $walk_dirs);
1305         }
1306
1307         /* rewrite_rules
1308          * Construct rewrite matches and queries from permalink structure.
1309          * Returns an associate array of matches and queries.
1310          */
1311         function rewrite_rules() {
1312                 $rewrite = array();
1313
1314                 if (empty($this->permalink_structure)) {
1315                         return $rewrite;
1316                 }
1317
1318                 // Post
1319                 $post_rewrite = $this->generate_rewrite_rules($this->permalink_structure);
1320                 $post_rewrite = apply_filters('post_rewrite_rules', $post_rewrite);
1321
1322                 // Date
1323                 $date_rewrite = $this->generate_rewrite_rules($this->get_date_permastruct());
1324                 $date_rewrite = apply_filters('date_rewrite_rules', $date_rewrite);
1325
1326                 // Root
1327                 $root_rewrite = $this->generate_rewrite_rules($this->root . '/');
1328                 $root_rewrite = apply_filters('root_rewrite_rules', $root_rewrite);
1329
1330                 // Comments
1331                 $comments_rewrite = $this->generate_rewrite_rules($this->root . $this->comments_base, true, true, true, false);
1332                 $comments_rewrite = apply_filters('comments_rewrite_rules', $comments_rewrite);
1333
1334                 // Search
1335                 $search_structure = $this->get_search_permastruct();
1336                 $search_rewrite = $this->generate_rewrite_rules($search_structure);
1337                 $search_rewrite = apply_filters('search_rewrite_rules', $search_rewrite);
1338
1339                 // Categories
1340                 $category_rewrite = $this->generate_rewrite_rules($this->get_category_permastruct());
1341                 $category_rewrite = apply_filters('category_rewrite_rules', $category_rewrite);
1342
1343                 // Authors
1344                 $author_rewrite = $this->generate_rewrite_rules($this->get_author_permastruct());
1345                 $author_rewrite = apply_filters('author_rewrite_rules', $author_rewrite);
1346
1347                 // Pages
1348                 $page_rewrite = $this->page_rewrite_rules();
1349                 $page_rewrite = apply_filters('page_rewrite_rules', $page_rewrite);
1350
1351                 // Put them together.
1352                 $this->rules = array_merge($page_rewrite, $root_rewrite, $comments_rewrite, $search_rewrite, $category_rewrite, $author_rewrite, $date_rewrite, $post_rewrite);
1353
1354                 do_action('generate_rewrite_rules', array(&$this));
1355                 $this->rules = apply_filters('rewrite_rules_array', $this->rules);
1356
1357                 return $this->rules;
1358         }
1359
1360         function wp_rewrite_rules() {
1361                 $this->rules = get_option('rewrite_rules');
1362                 if ( empty($this->rules) ) {
1363                         $this->matches = 'matches';
1364                         $this->rewrite_rules();
1365                         update_option('rewrite_rules', $this->rules);
1366                 }
1367
1368                 return $this->rules;
1369         }
1370
1371         function mod_rewrite_rules() {
1372                 if ( ! $this->using_permalinks()) {
1373                         return '';
1374                 }
1375
1376                 $site_root = parse_url(get_settings('siteurl'));
1377                 $site_root = trailingslashit($site_root['path']);
1378
1379                 $home_root = parse_url(get_settings('home'));
1380                 $home_root = trailingslashit($home_root['path']);
1381
1382                 $rules = "<IfModule mod_rewrite.c>\n";
1383                 $rules .= "RewriteEngine On\n";
1384                 $rules .= "RewriteBase $home_root\n";
1385
1386                 if ($this->use_verbose_rules) {
1387                         $this->matches = '';
1388                         $rewrite = $this->rewrite_rules();
1389                         $num_rules = count($rewrite);
1390                         $rules .= "RewriteCond %{REQUEST_FILENAME} -f [OR]\n" .
1391                                 "RewriteCond %{REQUEST_FILENAME} -d\n" .
1392                                 "RewriteRule ^.*$ - [S=$num_rules]\n";
1393
1394                         foreach ($rewrite as $match => $query) {
1395                                 // Apache 1.3 does not support the reluctant (non-greedy) modifier.
1396                                 $match = str_replace('.+?', '.+', $match);
1397
1398                                 // If the match is unanchored and greedy, prepend rewrite conditions
1399                                 // to avoid infinite redirects and eclipsing of real files.
1400                                 if ($match == '(.+)/?$' || $match == '([^/]+)/?$' ) {
1401                                         //nada.
1402                                 }
1403
1404                                 if (strstr($query, $this->index)) {
1405                                         $rules .= 'RewriteRule ^' . $match . ' ' . $home_root . $query . " [QSA,L]\n";
1406                                 } else {
1407                                         $rules .= 'RewriteRule ^' . $match . ' ' . $site_root . $query . " [QSA,L]\n";
1408                                 }
1409                         }
1410                 } else {
1411                         $rules .= "RewriteCond %{REQUEST_FILENAME} !-f\n" .
1412                                 "RewriteCond %{REQUEST_FILENAME} !-d\n" .
1413                                 "RewriteRule . {$home_root}{$this->index} [L]\n";
1414                 }
1415
1416                 $rules .= "</IfModule>\n";
1417
1418                 $rules = apply_filters('mod_rewrite_rules', $rules);
1419                 $rules = apply_filters('rewrite_rules', $rules);  // Deprecated
1420
1421                 return $rules;
1422         }
1423
1424         function flush_rules() {
1425                 generate_page_rewrite_rules();
1426                 delete_option('rewrite_rules');
1427                 $this->wp_rewrite_rules();
1428                 if ( function_exists('save_mod_rewrite_rules') )
1429                         save_mod_rewrite_rules();
1430         }
1431
1432         function init() {
1433                 $this->permalink_structure = get_settings('permalink_structure');
1434                 $this->front = substr($this->permalink_structure, 0, strpos($this->permalink_structure, '%'));
1435                 $this->root = '';
1436                 if ($this->using_index_permalinks()) {
1437                         $this->root = $this->index . '/';
1438                 }
1439                 $this->category_base = get_settings('category_base');
1440                 unset($this->category_structure);
1441                 unset($this->author_structure);
1442                 unset($this->date_structure);
1443                 unset($this->page_structure);
1444                 unset($this->search_structure);
1445                 unset($this->feed_structure);
1446                 unset($this->comment_feed_structure);
1447         }
1448
1449         function set_permalink_structure($permalink_structure) {
1450                 if ($permalink_structure != $this->permalink_structure) {
1451                         update_option('permalink_structure', $permalink_structure);
1452                         $this->init();
1453                 }
1454         }
1455
1456         function set_category_base($category_base) {
1457                 if ($category_base != $this->category_base) {
1458                         update_option('category_base', $category_base);
1459                         $this->init();
1460                 }
1461         }
1462
1463         function WP_Rewrite() {
1464                 $this->init();
1465         }
1466 }
1467
1468 class WP {
1469         var $public_query_vars = array('m', 'p', 'posts', 'w', 'cat', 'withcomments', 's', 'search', 'exact', 'sentence', 'debug', 'calendar', 'page', 'paged', 'more', 'tb', 'pb', 'author', 'order', 'orderby', 'year', 'monthnum', 'day', 'hour', 'minute', 'second', 'name', 'category_name', 'feed', 'author_name', 'static', 'pagename', 'page_id', 'error', 'comments_popup', 'attachment', 'attachment_id', 'subpost', 'subpost_id', 'preview');
1470
1471         var $private_query_vars = array('posts_per_page', 'posts_per_archive_page', 'what_to_show', 'showposts', 'nopaging', 'show_post_type');
1472
1473         var $query_vars;
1474         var $query_string;
1475         var $request;
1476         var $matched_rule;
1477         var $matched_query;
1478         var $did_permalink = false;
1479
1480         function parse_request($extra_query_vars = '') {
1481                 global $wp_rewrite;
1482
1483                 $this->query_vars = array();
1484
1485                 if (! empty($extra_query_vars))
1486                         parse_str($extra_query_vars, $extra_query_vars);
1487                 else
1488                         $extra_query_vars = array();
1489
1490                 // Process PATH_INFO, REQUEST_URI, and 404 for permalinks.
1491
1492                 // Fetch the rewrite rules.
1493                 $rewrite = $wp_rewrite->wp_rewrite_rules();
1494
1495                 if (! empty($rewrite)) {
1496                         // If we match a rewrite rule, this will be cleared.
1497                         $error = '404';
1498                         $this->did_permalink = true;
1499
1500                         $pathinfo = $_SERVER['PATH_INFO'];
1501                         $pathinfo_array = explode('?', $pathinfo);
1502                         $pathinfo = $pathinfo_array[0];
1503                         $req_uri = $_SERVER['REQUEST_URI'];
1504                         $req_uri_array = explode('?', $req_uri);
1505                         $req_uri = $req_uri_array[0];
1506                         $self = $_SERVER['PHP_SELF'];
1507                         $home_path = parse_url(get_settings('home'));
1508                         $home_path = $home_path['path'];
1509                         $home_path = trim($home_path, '/');
1510
1511                         // Trim path info from the end and the leading home path from the
1512                         // front.  For path info requests, this leaves us with the requesting
1513                         // filename, if any.  For 404 requests, this leaves us with the
1514                         // requested permalink.
1515                         $req_uri = str_replace($pathinfo, '', $req_uri);
1516                         $req_uri = trim($req_uri, '/');
1517                         $req_uri = preg_replace("|^$home_path|", '', $req_uri);
1518                         $req_uri = trim($req_uri, '/');
1519                         $pathinfo = trim($pathinfo, '/');
1520                         $pathinfo = preg_replace("|^$home_path|", '', $pathinfo);
1521                         $pathinfo = trim($pathinfo, '/');
1522                         $self = trim($self, '/');
1523                         $self = preg_replace("|^$home_path|", '', $self);
1524                         $self = str_replace($home_path, '', $self);
1525                         $self = trim($self, '/');
1526
1527                         // The requested permalink is in $pathinfo for path info requests and
1528                         //  $req_uri for other requests.
1529                         if ( ! empty($pathinfo) && !preg_match('|^.*' . $wp_rewrite->index . '$|', $pathinfo) ) {
1530                                 $request = $pathinfo;
1531                         } else {
1532                                 // If the request uri is the index, blank it out so that we don't try to match it against a rule.
1533                                 if ( $req_uri == $wp_rewrite->index )
1534                                         $req_uri = '';
1535                                 $request = $req_uri;
1536                         }
1537
1538                         $this->request = $request;
1539
1540                         // Look for matches.
1541                         $request_match = $request;
1542                         foreach ($rewrite as $match => $query) {
1543                                 // If the requesting file is the anchor of the match, prepend it
1544                                 // to the path info.
1545                                 if ((! empty($req_uri)) && (strpos($match, $req_uri) === 0) && ($req_uri != $request)) {
1546                                         $request_match = $req_uri . '/' . $request;
1547                                 }
1548
1549                                 if (preg_match("!^$match!", $request_match, $matches) ||
1550                                         preg_match("!^$match!", urldecode($request_match), $matches)) {
1551                                         // Got a match.
1552                                         $this->matched_rule = $match;
1553
1554                                         // Trim the query of everything up to the '?'.
1555                                         $query = preg_replace("!^.+\?!", '', $query);
1556
1557                                         // Substitute the substring matches into the query.
1558                                         eval("\$query = \"$query\";");
1559                                         $this->matched_query = $query;
1560
1561                                         // Parse the query.
1562                                         parse_str($query, $query_vars);
1563
1564                                         // If we're processing a 404 request, clear the error var
1565                                         // since we found something.
1566                                         if (isset($_GET['error']))
1567                                                 unset($_GET['error']);
1568
1569                                         if (isset($error))
1570                                                 unset($error);
1571
1572                                         break;
1573                                 }
1574                         }
1575
1576                         // If req_uri is empty or if it is a request for ourself, unset error.
1577                         if ( empty($request) || $req_uri == $self || strstr($_SERVER['PHP_SELF'], 'wp-admin/') ) {
1578                                 if (isset($_GET['error']))
1579                                         unset($_GET['error']);
1580
1581                                 if (isset($error))
1582                                         unset($error);
1583
1584                                 if ( isset($query_vars) && strstr($_SERVER['PHP_SELF'], 'wp-admin/') )
1585                                         unset($query_vars);
1586
1587                                 $this->did_permalink = false;
1588                         }
1589                 }
1590
1591                 $this->public_query_vars = apply_filters('query_vars', $this->public_query_vars);
1592
1593                 for ($i=0; $i<count($this->public_query_vars); $i += 1) {
1594                         $wpvar = $this->public_query_vars[$i];
1595                         if (isset($extra_query_vars[$wpvar]))
1596                                 $this->query_vars[$wpvar] = $extra_query_vars[$wpvar];
1597                         elseif (isset($GLOBALS[$wpvar]))
1598                                 $this->query_vars[$wpvar] = $GLOBALS[$wpvar];
1599                         elseif (!empty($_POST[$wpvar]))
1600                                 $this->query_vars[$wpvar] = $_POST[$wpvar];
1601                         elseif (!empty($_GET[$wpvar]))
1602                                 $this->query_vars[$wpvar] = $_GET[$wpvar];
1603                         elseif (!empty($query_vars[$wpvar]))
1604                                 $this->query_vars[$wpvar] = $query_vars[$wpvar];
1605                         else
1606                                 $this->query_vars[$wpvar] = '';
1607                 }
1608
1609                 if ( isset($error) )
1610                         $this->query_vars['error'] = $error;
1611         }
1612
1613         function send_headers() {
1614                 @header('X-Pingback: '. get_bloginfo('pingback_url'));
1615                 if ( is_user_logged_in() )
1616                         nocache_headers();
1617                 if ( !empty($this->query_vars['error']) && '404' == $this->query_vars['error'] ) {
1618                         status_header( 404 );
1619                         @header('Content-type: ' . get_option('html_type') . '; charset=' . get_option('blog_charset'));
1620                 } else if ( empty($this->query_vars['feed']) ) {
1621                         @header('Content-type: ' . get_option('html_type') . '; charset=' . get_option('blog_charset'));
1622                 } else {
1623                         // We're showing a feed, so WP is indeed the only thing that last changed
1624                         if ( $this->query_vars['withcomments'] )
1625                                 $wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastcommentmodified('GMT'), 0).' GMT';
1626                         else
1627                                 $wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastpostmodified('GMT'), 0).' GMT';
1628                         $wp_etag = '"' . md5($wp_last_modified) . '"';
1629                         @header("Last-Modified: $wp_last_modified");
1630                         @header("ETag: $wp_etag");
1631
1632                         // Support for Conditional GET
1633                         if (isset($_SERVER['HTTP_IF_NONE_MATCH'])) $client_etag = stripslashes($_SERVER['HTTP_IF_NONE_MATCH']);
1634                         else $client_etag = false;
1635
1636                         $client_last_modified = trim( $_SERVER['HTTP_IF_MODIFIED_SINCE']);
1637                         // If string is empty, return 0. If not, attempt to parse into a timestamp
1638                         $client_modified_timestamp = $client_last_modified ? strtotime($client_last_modified) : 0;
1639
1640                         // Make a timestamp for our most recent modification...
1641                         $wp_modified_timestamp = strtotime($wp_last_modified);
1642
1643                         if ( ($client_last_modified && $client_etag) ?
1644                                          (($client_modified_timestamp >= $wp_modified_timestamp) && ($client_etag == $wp_etag)) :
1645                                          (($client_modified_timestamp >= $wp_modified_timestamp) || ($client_etag == $wp_etag)) ) {
1646                                 status_header( 304 );
1647                                 exit;
1648                         }
1649                 }
1650         }
1651
1652         function build_query_string() {
1653                 $this->query_string = '';
1654
1655                 foreach ($this->public_query_vars as $wpvar) {
1656                         if (isset($this->query_vars[$wpvar]) && '' != $this->query_vars[$wpvar]) {
1657                                 $this->query_string .= (strlen($this->query_string) < 1) ? '' : '&';
1658                                 $this->query_string .= $wpvar . '=' . rawurlencode($this->query_vars[$wpvar]);
1659                         }
1660                 }
1661
1662                 foreach ($this->private_query_vars as $wpvar) {
1663                         if (isset($GLOBALS[$wpvar]) && '' != $GLOBALS[$wpvar]) {
1664                                 $this->query_string .= (strlen($this->query_string) < 1) ? '' : '&';
1665                                 $this->query_string .= $wpvar . '=' . rawurlencode($GLOBALS[$wpvar]);
1666                         }
1667                 }
1668
1669                 $this->query_string = apply_filters('query_string', $this->query_string);
1670         }
1671
1672         function register_globals() {
1673                 global $wp_query;
1674                 // Extract updated query vars back into global namespace.
1675                 foreach ($wp_query->query_vars as $key => $value) {
1676                         $GLOBALS[$key] = $value;
1677                 }
1678
1679                 $GLOBALS['query_string'] = & $this->query_string;
1680                 $GLOBALS['posts'] = & $wp_query->posts;
1681                 $GLOBALS['post'] = & $wp_query->post;
1682                 $GLOBALS['request'] = & $wp_query->request;
1683
1684                 if ( is_single() || is_page() ) {
1685                         $GLOBALS['more'] = 1;
1686                         $GLOBALS['single'] = 1;
1687                 }
1688         }
1689
1690         function init() {
1691                 wp_get_current_user();
1692         }
1693
1694         function query_posts() {
1695                 $this->build_query_string();
1696                 query_posts($this->query_string);
1697         }
1698
1699         function handle_404() {
1700                 global $wp_query;
1701                 // Issue a 404 if a permalink request doesn't match any posts.  Don't
1702                 // issue a 404 if one was already issued, if the request was a search,
1703                 // or if the request was a regular query string request rather than a
1704                 // permalink request.
1705                 if ( (0 == count($wp_query->posts)) && !is_404() && !is_search() && ( $this->did_permalink || (!empty($_SERVER['QUERY_STRING']) && (false === strpos($_SERVER['REQUEST_URI'], '?'))) ) ) {
1706                         $wp_query->set_404();
1707                         status_header( 404 );
1708                 }       elseif( is_404() != true ) {
1709                         status_header( 200 );
1710                 }
1711         }
1712
1713         function main($query_args = '') {
1714                 $this->init();
1715                 $this->parse_request($query_args);
1716                 $this->send_headers();
1717                 $this->query_posts();
1718                 $this->handle_404();
1719                 $this->register_globals();
1720         }
1721
1722         function WP() {
1723                 // Empty.
1724         }
1725 }
1726
1727 ?>