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/blog/wp-content/plugins/wp-super-cache/wp-cache-phase2.php

https://bitbucket.org/sergiohzlz/reportaprod
PHP | 1097 lines | 968 code | 104 blank | 25 comment | 557 complexity | d0df4e09d81b9631b480cc408d57079d MD5 | raw file
Possible License(s): GPL-2.0, GPL-3.0, AGPL-1.0, LGPL-2.1

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  1. <?php
    2. 

  2. 

  3. function wp_cache_phase2() {
    4. 

  4. 	global $wpsc_settings;
    5. 

  5. 	global $cache_filename, $cache_acceptable_files, $wp_cache_gzip_encoding, $super_cache_enabled, $cache_rebuild_files, $wp_cache_last_gc;
    6. 

  6. 	global $cache_max_time, $wp_cache_request_uri, $super_cache_enabled, $wp_cache_object_cache;
    7. 

  7. 	global $cache_enabled, $wp_cache_gmt_offset, $wp_cache_blog_charset;
    8. 

  8. 

  9. 	if ( $cache_enabled == false )
    10. 

  10. 		return false;
    11. 

  11. 

  12. 	if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'In WP Cache Phase 2', 5 );
    13. 

  13. 

  14. 	$wp_cache_gmt_offset = get_option( 'gmt_offset' ); // caching for later use when wpdb is gone. http://wordpress.org/support/topic/224349
    15. 

  15. 	$wp_cache_blog_charset = get_option( 'blog_charset' );
    16. 

  16. 

  17. 	wp_cache_mutex_init();
    18. 

  18. 	if(function_exists('add_action') && ( !defined( 'WPLOCKDOWN' ) || ( defined( 'WPLOCKDOWN' ) && constant( 'WPLOCKDOWN' ) == '0' ) ) ) {
    19. 

  19. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'Setting up WordPress actions', 5 );
    20. 

  20. 		// Post ID is received
    21. 

  21. 		add_action('publish_post', 'wp_cache_post_edit', 0);
    22. 

  22. 		add_action('edit_post', 'wp_cache_post_change', 0); // leaving a comment called edit_post
    23. 

  23. 		add_action('delete_post', 'wp_cache_post_edit', 0);
    24. 

  24. 		add_action('publish_phone', 'wp_cache_post_edit', 0);
    25. 

  25. 		// Coment ID is received
    26. 

  26. 		add_action('trackback_post', 'wp_cache_get_postid_from_comment', 99);
    27. 

  27. 		add_action('pingback_post', 'wp_cache_get_postid_from_comment', 99);
    28. 

  28. 		add_action('comment_post', 'wp_cache_get_postid_from_comment', 99);
    29. 

  29. 		add_action('edit_comment', 'wp_cache_get_postid_from_comment', 99);
    30. 

  30. 		add_action('wp_set_comment_status', 'wp_cache_get_postid_from_comment', 99, 2);
    31. 

  31. 		// No post_id is available
    32. 

  32. 		add_action('switch_theme', 'wp_cache_no_postid', 99); 
    33. 

  33. 		add_action('edit_user_profile_update', 'wp_cache_no_postid', 99); 
    34. 

  34. 

  35. 		add_action( 'wp_update_nav_menu', 'wp_cache_clear_cache' );
    36. 

  36. 

  37. 		add_action('wp_cache_gc','wp_cache_gc_cron');
    38. 

  38. 

  39. 		do_cacheaction( 'add_cacheaction' );
    40. 

  40. 	}
    41. 

  41. 

  42. 	if ( is_admin() ) {
    43. 

  43. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'Not caching wp-admin requests.', 5 );
    44. 

  44. 		return false;
    45. 

  45. 	}
    46. 

  46. 

  47. 	if ( $_SERVER["REQUEST_METHOD"] == 'POST' || !empty( $_POST ) || get_option( 'gzipcompression' ) ) {
    48. 

  48. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'Not caching POST request.', 5 );
    49. 

  49. 		return false;
    50. 

  50. 	}
    51. 

  51. 

  52. 	if ( $wp_cache_object_cache && !empty( $_GET ) ) {
    53. 

  53. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'Not caching GET request while object cache storage enabled.', 5 );
    54. 

  54. 		return false;
    55. 

  55. 	}
    56. 

  56. 

  57. 	if ( isset( $_GET[ 'preview' ] ) ) {
    58. 

  58. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'Not caching preview post.', 2 );
    59. 

  59. 		return false;
    60. 

  60. 	}
    61. 

  61. 

  62. 	if ( !empty( $_GET ) ) {
    63. 

  63. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'Supercache caching disabled. Only using wp-cache. Non empty GET request.', 5 );
    64. 

  64. 		$super_cache_enabled = false;
    65. 

  65. 	}
    66. 

  66. 

  67. 	$script = basename($_SERVER['PHP_SELF']);
    68. 

  68. 	if (!in_array($script, $cache_acceptable_files) && wp_cache_is_rejected($wp_cache_request_uri)) {
    69. 

  69. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'URI rejected. Not Caching', 2 );
    70. 

  70. 		return false;
    71. 

  71. 	}
    72. 

  72. 	if (wp_cache_user_agent_is_rejected()) {
    73. 

  73. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "USER AGENT ({$_SERVER[ 'HTTP_USER_AGENT' ]}) rejected. Not Caching", 4 );
    74. 

  74. 		return;
    75. 

  75. 	}
    76. 

  76. 	if($wp_cache_gzip_encoding)
    77. 

  77. 		header('Vary: Accept-Encoding, Cookie');
    78. 

  78. 	else
    79. 

  79. 		header('Vary: Cookie');
    80. 

  80. 	ob_start( 'wp_cache_ob_callback' ); 
    81. 

  81. 	if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'Created output buffer', 4 );
    82. 

  82. 

  83. 	// restore old supercache file temporarily
    84. 

  84. 	if( $super_cache_enabled && $cache_rebuild_files ) {
    85. 

  85. 		$user_info = wp_cache_get_cookies_values();
    86. 

  86. 		$do_cache = apply_filters( 'do_createsupercache', $user_info );
    87. 

  87. 		if( $user_info == '' || $do_cache === true ) {
    88. 

  88. 			$dir = get_current_url_supercache_dir();
    89. 

  89. 			$files_to_check = array( $dir . 'index.html', $dir . 'index.html.php', $dir . 'index.html.gz' );
    90. 

  90. 			foreach( $files_to_check as $cache_file ) {
    91. 

  91. 				if( !@file_exists( $cache_file . '.needs-rebuild' ) )
    92. 

  92. 					continue;
    93. 

  93. 				$mtime = @filemtime($cache_file . '.needs-rebuild');
    94. 

  94. 				if( $mtime && (time() - $mtime) < 30 ) {
    95. 

  95. 					if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Rebuild file renamed to cache file temporarily", 3 );
    96. 

  96. 					@rename( $cache_file . '.needs-rebuild', $cache_file );
    97. 

  97. 				}
    98. 

  98. 				// cleanup old files or if rename fails
    99. 

  99. 				if( @file_exists( $cache_file . '.needs-rebuild' ) ) {
    100. 

  100. 					if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Rebuild file deleted", 3 );
    101. 

  101. 					@unlink( $cache_file . '.needs-rebuild' );
    102. 

  102. 				}
    103. 

  103. 			}
    104. 

  104. 		}
    105. 

  105. 	}
    106. 

  106. 

  107. 	if ( $cache_max_time == 0 )
    108. 

  108. 		return false;
    109. 

  109. 	if( !isset( $cache_max_time ) )
    110. 

  110. 		$cache_max_time = 600;
    111. 

  111. 	$last_gc = get_option( "wpsupercache_gc_time" );
    112. 

  112. 

  113. 	if( !$last_gc ) {
    114. 

  114. 		update_option( 'wpsupercache_gc_time', time() );
    115. 

  115. 	}
    116. 

  116. 	$next_gc = $cache_max_time < 1800 ? $cache_max_time : 600;
    117. 

  117. 	if( $last_gc < ( time() - $next_gc ) ) {
    118. 

  118. 		update_option( 'wpsupercache_gc_time', time() );
    119. 

  119. 

  120. 		global $wp_cache_shutdown_gc;
    121. 

  121. 		if( !isset( $wp_cache_shutdown_gc ) || $wp_cache_shutdown_gc == 0 ) {
    122. 

  122. 			if(!wp_next_scheduled('wp_cache_gc')) {
    123. 

  123. 				wp_schedule_single_event(time() + 10 , 'wp_cache_gc');
    124. 

  124. 				if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'scheduled wp_cache_gc for 10 seconds time.', 5 );
    125. 

  125. 			}
    126. 

  126. 		} else {
    127. 

  127. 			global $time_to_gc_cache;
    128. 

  128. 			$time_to_gc_cache = 1; // tell the "shutdown gc" to run!
    129. 

  129. 		}
    130. 

  130. 	}
    131. 

  131. }
    132. 

  132. 

  133. function wpcache_logged_in_message() {
    134. 

  134. 	echo '<!-- WP Super Cache did not cache this page because you are logged in and "Don\'t cache pages for logged in users" is enabled. -->';
    135. 

  135. }
    136. 

  136. 

  137. if ( !function_exists( 'wp_cache_user_agent_is_rejected' ) ) {
    138. 

  138. 	function wp_cache_user_agent_is_rejected() {
    139. 

  139. 		global $cache_rejected_user_agent;
    140. 

  140. 

  141. 		if (!function_exists('apache_request_headers')) return false;
    142. 

  142. 		$headers = apache_request_headers();
    143. 

  143. 		if (!isset($headers["User-Agent"])) return false;
    144. 

  144. 		foreach ($cache_rejected_user_agent as $expr) {
    145. 

  145. 			if (strlen($expr) > 0 && stristr($headers["User-Agent"], $expr))
    146. 

  146. 				return true;
    147. 

  147. 		}
    148. 

  148. 		return false;
    149. 

  149. 	}
    150. 

  150. }
    151. 

  151. 

  152. function wp_cache_get_response_headers() {
    153. 

  153. 	if(function_exists('apache_response_headers')) {
    154. 

  154. 		flush();
    155. 

  155. 		$headers = apache_response_headers();
    156. 

  156. 	} else if(function_exists('headers_list')) {
    157. 

  157. 		$headers = array();
    158. 

  158. 		foreach(headers_list() as $hdr) {
    159. 

  159. 			list($header_name, $header_value) = explode(': ', $hdr, 2);
    160. 

  160. 			$headers[$header_name] = $header_value;
    161. 

  161. 		}
    162. 

  162. 	} else
    163. 

  163. 		$headers = null;
    164. 

  164. 

  165. 	return $headers;
    166. 

  166. }
    167. 

  167. 

  168. function wp_cache_is_rejected($uri) {
    169. 

  169. 	global $cache_rejected_uri;
    170. 

  170. 

  171. 	$auto_rejected = array( '/wp-admin/', 'xmlrpc.php', 'wp-app.php' );
    172. 

  172. 	foreach( $auto_rejected as $u ) {
    173. 

  173. 		if( strstr( $uri, $u ) )
    174. 

  174. 			return true; // we don't allow caching of wp-admin for security reasons
    175. 

  175. 	}
    176. 

  176. 	foreach ( $cache_rejected_uri as $expr ) {
    177. 

  177. 		if( $expr != '' && preg_match( "~$expr~", $uri ) )
    178. 

  178. 			return true;
    179. 

  179. 	}
    180. 

  180. 	return false;
    181. 

  181. }
    182. 

  182. 

  183. function wp_cache_mutex_init() {
    184. 

  184. 	global $mutex, $wp_cache_mutex_disabled, $use_flock, $blog_cache_dir, $mutex_filename, $sem_id;
    185. 

  185. 

  186. 	if( isset( $wp_cache_mutex_disabled) && $wp_cache_mutex_disabled )
    187. 

  187. 		return true;
    188. 

  188. 

  189. 	if( !is_bool( $use_flock ) ) {
    190. 

  190. 		if(function_exists('sem_get')) 
    191. 

  191. 			$use_flock = false;
    192. 

  192. 		else
    193. 

  193. 			$use_flock = true;
    194. 

  194. 	}
    195. 

  195. 

  196. 	$mutex = false;
    197. 

  197. 	if ($use_flock )  {
    198. 

  198. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Created mutex lock on filename: {$blog_cache_dir}{$mutex_filename}", 5 );
    199. 

  199. 		$mutex = @fopen( $blog_cache_dir . $mutex_filename, 'w' );
    200. 

  200. 	} else {
    201. 

  201. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Created mutex lock on semaphore: {$sem_id}", 5 );
    202. 

  202. 		$mutex = @sem_get( $sem_id, 1, 0644 | IPC_CREAT, 1 );
    203. 

  203. 	}
    204. 

  204. }
    205. 

  205. 

  206. function wp_cache_writers_entry() {
    207. 

  207. 	global $mutex, $wp_cache_mutex_disabled, $use_flock;
    208. 

  208. 

  209. 	if( isset( $wp_cache_mutex_disabled ) && $wp_cache_mutex_disabled )
    210. 

  210. 		return true;
    211. 

  211. 

  212. 	if( !$mutex ) {
    213. 

  213. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "(writers entry) mutex lock not created. not caching.", 2 );
    214. 

  214. 		return false;
    215. 

  215. 	}
    216. 

  216. 

  217. 	if ( $use_flock ) {
    218. 

  218. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "grabbing lock using flock()", 5 );
    219. 

  219. 		flock($mutex,  LOCK_EX);
    220. 

  220. 	} else {
    221. 

  221. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "grabbing lock using sem_acquire()", 5 );
    222. 

  222. 		sem_acquire($mutex);
    223. 

  223. 	}
    224. 

  224. 

  225. 	return true;
    226. 

  226. }
    227. 

  227. 

  228. function wp_cache_writers_exit() {
    229. 

  229. 	global $mutex, $wp_cache_mutex_disabled, $use_flock;
    230. 

  230. 

  231. 	if( isset( $wp_cache_mutex_disabled ) && $wp_cache_mutex_disabled )
    232. 

  232. 		return true;
    233. 

  233. 

  234. 	if( !$mutex ) {
    235. 

  235. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "(writers exit) mutex lock not created. not caching.", 2 );
    236. 

  236. 		return false;
    237. 

  237. 	}
    238. 

  238. 

  239. 	if ( $use_flock ) {
    240. 

  240. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "releasing lock using flock()", 5 );
    241. 

  241. 		flock($mutex,  LOCK_UN);
    242. 

  242. 	} else {
    243. 

  243. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "releasing lock using sem_release()", 5 );
    244. 

  244. 		sem_release($mutex);
    245. 

  245. 	}
    246. 

  246. }
    247. 

  247. 

  248. function wp_cache_ob_callback( $buffer ) {
    249. 

  249. 	global $wp_cache_pages;
    250. 

  250. 	$buffer = apply_filters( 'wp_cache_ob_callback_filter', $buffer );
    251. 

  251. 	if( defined( 'DONOTCACHEPAGE' ) ) {
    252. 

  252. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'DONOTCACHEPAGE defined. Caching disabled.', 2 );
    253. 

  253. 		return $buffer;
    254. 

  254. 	}
    255. 

  255. 

  256. 	if ( isset( $wp_cache_pages[ 'single' ] ) && $wp_cache_pages[ 'single' ] == 1 && is_single() ) {
    257. 

  257. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'Not caching single post.', 2 );
    258. 

  258. 		return $buffer;
    259. 

  259. 	} elseif ( isset( $wp_cache_pages[ 'pages' ] ) && $wp_cache_pages[ 'pages' ] == 1 && is_page() ) {
    260. 

  260. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'Not caching single page.', 2 );
    261. 

  261. 		return $buffer;
    262. 

  262. 	} elseif ( isset( $wp_cache_pages[ 'archives' ] ) && $wp_cache_pages[ 'archives' ] == 1 && is_archive() ) {
    263. 

  263. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'Not caching archive page.', 2 );
    264. 

  264. 		return $buffer;
    265. 

  265. 	} elseif ( isset( $wp_cache_pages[ 'tag' ] ) && $wp_cache_pages[ 'tag' ] == 1 && is_tag() ) {
    266. 

  266. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'Not caching tag page.', 2 );
    267. 

  267. 		return $buffer;
    268. 

  268. 	} elseif ( isset( $wp_cache_pages[ 'category' ] ) && $wp_cache_pages[ 'category' ] == 1 && is_category() ) {
    269. 

  269. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'Not caching category page.', 2 );
    270. 

  270. 		return $buffer;
    271. 

  271. 	} elseif ( isset( $wp_cache_pages[ 'frontpage' ] ) && $wp_cache_pages[ 'frontpage' ] == 1 && is_front_page() ) {
    272. 

  272. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'Not caching front page.', 2 );
    273. 

  273. 		return $buffer;
    274. 

  274. 	} elseif ( isset( $wp_cache_pages[ 'home' ] ) && $wp_cache_pages[ 'home' ] == 1 && is_home() ) {
    275. 

  275. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'Not caching home page.', 2 );
    276. 

  276. 		return $buffer;
    277. 

  277. 	} elseif ( isset( $wp_cache_pages[ 'search' ] ) && $wp_cache_pages[ 'search' ] == 1 && is_search() ) {
    278. 

  278. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'Not caching search page.', 2 );
    279. 

  279. 		return $buffer;
    280. 

  280. 	} elseif ( isset( $wp_cache_pages[ 'feed' ] ) && $wp_cache_pages[ 'feed' ] == 1 && is_feed() ) {
    281. 

  281. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'Not caching feed.', 2 );
    282. 

  282. 		return $buffer;
    283. 

  283. 	}
    284. 

  284. 

  285. 	if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'Output buffer callback', 4 );
    286. 

  286. 

  287. 	$buffer = &wp_cache_get_ob( $buffer );
    288. 

  288. 	wp_cache_shutdown_callback();
    289. 

  289. 	return $buffer;
    290. 

  290. }
    291. 

  291. 

  292. function wp_cache_append_tag( &$buffer ) {
    293. 

  293. 	global $wp_cache_gmt_offset;
    294. 

  294. 	global $cache_enabled, $super_cache_enabled;
    295. 

  295. 	$timestamp = gmdate('Y-m-d H:i:s', (time() + ( $wp_cache_gmt_offset * 3600)));
    296. 

  296. 	if ( $cache_enabled || $super_cache_enabled ) {
    297. 

  297. 		$buffer .= "<!-- Cached page generated by WP-Super-Cache on $timestamp -->\n";
    298. 

  298. 	} else {
    299. 

  299. 		$buffer .= "<!-- Live page served on $timestamp -->\n";
    300. 

  300. 	}
    301. 

  301. }
    302. 

  302. 

  303. function wp_cache_get_ob(&$buffer) {
    304. 

  304. 	global $wpsc_settings;
    305. 

  305. 	global $cache_enabled, $cache_path, $cache_filename, $meta_file, $wp_start_time, $supercachedir;
    306. 

  306. 	global $new_cache, $wp_cache_meta, $file_expired, $blog_id, $cache_compression;
    307. 

  307. 	global $wp_cache_gzip_encoding, $super_cache_enabled, $cached_direct_pages;
    308. 

  308. 	global $wp_cache_404, $gzsize, $supercacheonly;
    309. 

  309. 	global $blog_cache_dir, $wp_cache_request_uri, $wp_supercache_cache_list;
    310. 

  310. 	global $wp_cache_not_logged_in, $wp_cache_object_cache, $cache_max_time;
    311. 

  311. 	global $wp_cache_is_home, $wp_cache_front_page_checks;
    312. 

  312. 

  313. 	$new_cache = true;
    314. 

  314. 	$wp_cache_meta = '';
    315. 

  315. 

  316. 	/* Mode paranoic, check for closing tags 
    317. 

  317. 	 * we avoid caching incomplete files */
    318. 

  318. 	if ( $buffer == '' ) {
    319. 

  319. 		$new_cache = false;
    320. 

  320. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) {
    321. 

  321. 			wp_cache_debug( "Buffer is blank. Output buffer may have been corrupted by another plugin or this is a redirected URL. Look for text 'ob_start' in the files of your plugins directory.", 2 );
    322. 

  322. 			$buffer .= "\n<!-- Page not cached by WP Super Cache. Blank Page. Check output buffer usage by plugins. -->\n";
    323. 

  323. 		}
    324. 

  324. 	}
    325. 

  325. 

  326. 	if ( $wp_cache_404 && false == apply_filters( 'wpsupercache_404', false ) ) {
    327. 

  327. 		$new_cache = false;
    328. 

  328. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) {
    329. 

  329. 			wp_cache_debug( "404 file not found not cached", 2 );
    330. 

  330. 			$buffer .= "\n<!-- Page not cached by WP Super Cache. 404. -->\n";
    331. 

  331. 		}
    332. 

  332. 	}
    333. 

  333. 

  334. 	if (!preg_match('/(<\/html>|<\/rss>|<\/feed>|<\/urlset)/i',$buffer) ) {
    335. 

  335. 		$new_cache = false;
    336. 

  336. 		if( false === strpos( $_SERVER[ 'REQUEST_URI' ], 'robots.txt' ) ) {
    337. 

  337. 			if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) {
    338. 

  338. 				wp_cache_debug( "No closing html tag. Not caching.", 2 );
    339. 

  339. 				$buffer .= "\n<!-- Page not cached by WP Super Cache. No closing HTML tag. Check your theme. -->\n";
    340. 

  340. 			}
    341. 

  341. 		} else {
    342. 

  342. 			if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "robots.txt detected. Not caching.", 2 );
    343. 

  343. 		}
    344. 

  344. 	}
    345. 

  345. 	
    346. 

  346. 	if( !$new_cache )
    347. 

  347. 		return $buffer;
    348. 

  348. 

  349. 	$duration = wp_cache_microtime_diff($wp_start_time, microtime());
    350. 

  350. 	$duration = sprintf("%0.3f", $duration);
    351. 

  351. 	$buffer .= "\n<!-- Dynamic page generated in $duration seconds. -->\n";
    352. 

  352. 

  353. 	if( !wp_cache_writers_entry() ) {
    354. 

  354. 		$buffer .= "\n<!-- Page not cached by WP Super Cache. Could not get mutex lock. -->\n";
    355. 

  355. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Could not get mutex lock. Not caching.", 1 );
    356. 

  356. 		return $buffer;
    357. 

  357. 	}
    358. 

  358. 

  359. 	if ( $wp_cache_not_logged_in && is_feed() ) {
    360. 

  360. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Feed detected. Writing legacy cache files.", 5 );
    361. 

  361. 		$wp_cache_not_logged_in = false;
    362. 

  362. 	}
    363. 

  363. 

  364. 	$home_url = parse_url( trailingslashit( get_bloginfo( 'url' ) ) );
    365. 

  365. 

  366. 	$dir = get_current_url_supercache_dir();
    367. 

  367. 	$supercachedir = $cache_path . 'supercache/' . preg_replace('/:.*$/', '',  $home_url[ 'host' ]);
    368. 

  368. 	if( !empty( $_GET ) || is_feed() || ( $super_cache_enabled == true && is_dir( substr( $supercachedir, 0, -1 ) . '.disabled' ) ) ) {
    369. 

  369. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Supercache disabled: GET or feed detected or disabled by config.", 2 );
    370. 

  370. 		$super_cache_enabled = false;
    371. 

  371. 	}
    372. 

  372. 

  373. 	$tmp_wpcache_filename = $cache_path . uniqid( mt_rand(), true ) . '.tmp';
    374. 

  374. 

  375. 	$supercacheonly = false;
    376. 

  376. 	if( $super_cache_enabled ) {
    377. 

  377. 		if ( wp_cache_get_cookies_values() == '' ) {
    378. 

  378. 			if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Anonymous user detected. Only creating Supercache file.", 3 );
    379. 

  379. 			$supercacheonly = true;
    380. 

  380. 		}
    381. 

  381. 	}
    382. 

  382. 

  383. 	if ( $wp_cache_not_logged_in && wp_cache_get_cookies_values() != '' ) {
    384. 

  384. 		$super_cache_enabled = false;
    385. 

  385. 		$cache_enabled = false;
    386. 

  386. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'Not caching for known user.', 5 );
    387. 

  387. 	}
    388. 

  388. 

  389. 	if ( $wp_cache_object_cache ) { // half on mode when using the object cache
    390. 

  390. 		if ( wp_cache_get_cookies_values() != '' ) {
    391. 

  391. 			$cache_enabled = false;
    392. 

  392. 		}
    393. 

  393. 		$super_cache_enabled = false;
    394. 

  394. 		$supercacheonly = false;
    395. 

  395. 		wp_cache_init(); // PHP5 destroys objects during shutdown
    396. 

  396. 	}
    397. 

  397. 

  398. 	$fr = $fr2 = $gz = false;
    399. 

  399. 	if ( $cache_enabled ) {
    400. 

  400. 		// Open wp-cache cache file
    401. 

  401. 		if ( !$supercacheonly && ( !@file_exists( $blog_cache_dir . $cache_filename ) || ( @file_exists( $blog_cache_dir . $cache_filename ) && ( time() - @filemtime( $blog_cache_dir . $cache_filename ) ) > 5 ) ) ) {
    402. 

  402. 			if ( false == $wp_cache_object_cache ) {
    403. 

  403. 				$fr = @fopen($tmp_wpcache_filename, 'w');
    404. 

  404. 				if (!$fr) {
    405. 

  405. 					if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Error. Supercache could not write to " . str_replace( ABSPATH, '', $cache_path ) . $cache_filename, 1 );
    406. 

  406. 					$buffer .= "<!-- File not cached! Super Cache Couldn't write to: " . str_replace( ABSPATH, '', $cache_path ) . $cache_filename . " -->\n";
    407. 

  407. 					wp_cache_writers_exit();
    408. 

  408. 					return $buffer;
    409. 

  409. 				}
    410. 

  410. 			}
    411. 

  411. 		} else {
    412. 

  412. 			$user_info = wp_cache_get_cookies_values();
    413. 

  413. 			$do_cache = apply_filters( 'do_createsupercache', $user_info );
    414. 

  414. 			if ( $super_cache_enabled && ( $user_info == '' || $do_cache === true ) ) {
    415. 

  415. 

  416. 				if( @is_dir( $dir ) == false )
    417. 

  417. 					@wp_mkdir_p( $dir );
    418. 

  418. 

  419. 				$cache_fname = "{$dir}index.html";
    420. 

  420. 				$tmp_cache_filename = $dir . uniqid( mt_rand(), true ) . '.tmp';
    421. 

  421. 				if ( !@file_exists( $cache_fname ) || ( @file_exists( $cache_fname ) && ( time() - @filemtime( $cache_fname ) ) > 5 ) ) {
    422. 

  422. 					$fr2 = @fopen( $tmp_cache_filename, 'w' );
    423. 

  423. 					if (!$fr2) {
    424. 

  424. 						if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Error. Supercache could not write to " . str_replace( ABSPATH, '', $tmp_cache_filename ), 1 );
    425. 

  425. 						$buffer .= "<!-- File not cached! Super Cache Couldn't write to: " . str_replace( ABSPATH, '', $tmp_cache_filename ) . " -->\n";
    426. 

  426. 						@fclose( $fr );
    427. 

  427. 						@unlink( $tmp_wpcache_filename );
    428. 

  428. 						wp_cache_writers_exit();
    429. 

  429. 						return $buffer;
    430. 

  430. 					} elseif ( $cache_compression ) {
    431. 

  431. 						$gz = @fopen( $tmp_cache_filename . ".gz", 'w');
    432. 

  432. 						if (!$gz) {
    433. 

  433. 							if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Error. Supercache could not write to " . str_replace( ABSPATH, '', $tmp_cache_filename ) . ".gz", 1 );
    434. 

  434. 							$buffer .= "<!-- File not cached! Super Cache Couldn't write to: " . str_replace( ABSPATH, '', $tmp_cache_filename ) . ".gz -->\n";
    435. 

  435. 							@fclose( $fr );
    436. 

  436. 							@unlink( $tmp_wpcache_filename );
    437. 

  437. 							@fclose( $fr2 );
    438. 

  438. 							@unlink( $tmp_cache_filename );
    439. 

  439. 							wp_cache_writers_exit();
    440. 

  440. 							return $buffer;
    441. 

  441. 						}
    442. 

  442. 					}
    443. 

  443. 				}
    444. 

  444. 			}
    445. 

  445. 		}
    446. 

  446. 	}
    447. 

  447. 

  448. 	$added_cache = 0;
    449. 

  449. 	$oc_key = get_oc_key();
    450. 

  450. 	if ( preg_match( '/<!--mclude|<!--mfunc|<!--dynamic-cached-content-->/', $buffer ) ) { //Dynamic content
    451. 

  451. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Dynamic content found in buffer.", 4 );
    452. 

  452. 		$store = preg_replace('|<!--mclude (.*?)-->(.*?)<!--/mclude-->|is',
    453. 

  453. 				"<!--mclude-->\n<?php include_once('" . ABSPATH . "$1'); ?>\n<!--/mclude-->", $buffer);
    454. 

  454. 		$store = preg_replace('|<!--mfunc (.*?)-->(.*?)<!--/mfunc-->|is',
    455. 

  455. 				"<!--mfunc-->\n<?php $1 ;?>\n<!--/mfunc-->", $store);
    456. 

  456. 		$store = preg_replace('|<!--dynamic-cached-content-->(.*?)<!--(.*?)--><!--/dynamic-cached-content-->|is',
    457. 

  457. 				"<!--dynamic-cached-content-->\n<?php$2?>\n<!--/dynamic-cached-content-->", $store);
    458. 

  458. 		$wp_cache_meta[ 'dynamic' ] = true;
    459. 

  459. 		/* Clean function calls in tag */
    460. 

  460. 		$buffer = preg_replace('|<!--mclude (.*?)-->|is', '<!--mclude-->', $buffer);
    461. 

  461. 		$buffer = preg_replace('|<!--mfunc (.*?)-->|is', '<!--mfunc-->', $buffer);
    462. 

  462. 		$buffer = preg_replace('|<!--dynamic-cached-content-->(.*?)<!--(.*?)--><!--/dynamic-cached-content-->|is',
    463. 

  463. 				"<!--dynamic-cached-content-->$1<!--/dynamic-cached-content-->", $buffer);
    464. 

  464. 		$store = apply_filters( 'wpsupercache_buffer', $store );
    465. 

  465. 		// Append WP Super Cache or Live page comment tag
    466. 

  466. 		wp_cache_append_tag($buffer);
    467. 

  467. 		wp_cache_append_tag($store);
    468. 

  468. 		global $wp_super_cache_late_init;
    469. 

  469. 		if ( false == isset( $wp_super_cache_late_init ) || ( isset( $wp_super_cache_late_init ) && $wp_super_cache_late_init == 0 ) )
    470. 

  470. 			$buffer .= '<!-- Super Cache dynamic page detected but $wp_super_cache_late_init not set. See the readme.txt for further details. -->';
    471. 

  471. 

  472. 		if ( false == $wp_cache_object_cache ) {
    473. 

  473. 			if( $fr ) { // legacy caching
    474. 

  474. 				fputs($fr, $store);
    475. 

  475. 			} elseif ( isset( $fr2 ) ) { // supercache active
    476. 

  476. 				$php_fname = "{$dir}index.html.php";
    477. 

  477. 				$tmp_php_filename = $dir . uniqid( mt_rand(), true ) . '.tmp';
    478. 

  478. 				$php_fd = @fopen( $tmp_php_filename, 'w' );
    479. 

  479. 				if ( !$php_fd ) {
    480. 

  480. 					if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Error. Supercache could not write to " . str_replace( ABSPATH, '', $tmp_php_filename ), 1 );
    481. 

  481. 					$buffer .= "<!-- File not cached! Super Cache couldn't write to: " . str_replace( ABSPATH, '', $tmp_php_filename ) . " -->\n";
    482. 

  482. 					@fclose( $php_fd );
    483. 

  483. 					@unlink( $tmp_php_filename );
    484. 

  484. 					wp_cache_writers_exit();
    485. 

  485. 					return $buffer;
    486. 

  486. 				}
    487. 

  487. 				fputs( $php_fd, $store );
    488. 

  488. 			}
    489. 

  489. 		} else {
    490. 

  490. 			wp_cache_set( $oc_key, $store, 'supercache', $cache_max_time );
    491. 

  491. 		}
    492. 

  492. 		if ( $cache_compression && $wp_cache_gzip_encoding ) {
    493. 

  493. 			if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Gzipping dynamic buffer.", 5 );
    494. 

  494. 			$gzdata = gzencode( $buffer . "<!-- Compression = gzip -->", 6, FORCE_GZIP );
    495. 

  495. 			$gzsize = strlen($gzdata);
    496. 

  496. 		}
    497. 

  497. 	} else {
    498. 

  498. 		$buffer = apply_filters( 'wpsupercache_buffer', $buffer );
    499. 

  499. 		// Append WP Super Cache or Live page comment tag
    500. 

  500. 		wp_cache_append_tag($buffer);
    501. 

  501. 		if( $gz || $wp_cache_gzip_encoding ) {
    502. 

  502. 			if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Gzipping buffer.", 5 );
    503. 

  503. 			$gzdata = gzencode( $buffer . "<!-- Compression = gzip -->", 6, FORCE_GZIP );
    504. 

  504. 			$gzsize = strlen($gzdata);
    505. 

  505. 		}
    506. 

  506. 		if ($wp_cache_gzip_encoding) {
    507. 

  507. 			$wp_cache_meta[ 'headers' ][ 'Content-Encoding' ] = 'Content-Encoding: ' . $wp_cache_gzip_encoding;
    508. 

  508. 			$wp_cache_meta[ 'headers' ][ 'Vary' ] = 'Vary: Accept-Encoding, Cookie';
    509. 

  509. 			// Return uncompressed data & store compressed for later use
    510. 

  510. 			if ( false == $wp_cache_object_cache ) {
    511. 

  511. 				if( $fr ) {
    512. 

  512. 					if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Writing gzipped buffer to wp-cache cache file.", 5 );
    513. 

  513. 					fputs($fr, $gzdata);
    514. 

  514. 				}
    515. 

  515. 			} elseif ( $cache_enabled ) {
    516. 

  516. 				wp_cache_set( $oc_key . ".gz", $gzdata, 'supercache', $cache_max_time ); 
    517. 

  517. 				$added_cache = 1;
    518. 

  518. 			}
    519. 

  519. 		} else { // no compression
    520. 

  520. 			$wp_cache_meta[ 'headers' ][ 'Vary' ] = 'Vary: Cookie';
    521. 

  521. 			if ( false == $wp_cache_object_cache ) {
    522. 

  522. 				if( $fr ) {
    523. 

  523. 					if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Writing non-gzipped buffer to wp-cache cache file.", 5 );
    524. 

  524. 					fputs($fr, $buffer);
    525. 

  525. 				}
    526. 

  526. 			} elseif ( $cache_enabled ) {
    527. 

  527. 				wp_cache_set( $oc_key, $buffer, 'supercache', $cache_max_time ); 
    528. 

  528. 				$added_cache = 1;
    529. 

  529. 			}
    530. 

  530. 		}
    531. 

  531. 		if ( false == $wp_cache_object_cache ) {
    532. 

  532. 			if( $fr2 ) {
    533. 

  533. 				if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Writing non-gzipped buffer to supercache file.", 5 );
    534. 

  534. 				fputs($fr2, $buffer . '<!-- super cache -->' );
    535. 

  535. 			}
    536. 

  536. 			if( $gz ) {
    537. 

  537. 				if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Writing gzipped buffer to supercache file.", 5 );
    538. 

  538. 				fwrite($gz, $gzdata );
    539. 

  539. 			}
    540. 

  540. 		}
    541. 

  541. 	}
    542. 

  542. 	$new_cache = true;
    543. 

  543. 	if ( false == $wp_cache_object_cache ) {
    544. 

  544. 		if( $fr ) {
    545. 

  545. 			$supercacheonly = false;
    546. 

  546. 			fclose($fr);
    547. 

  547. 			if ( filesize( $tmp_wpcache_filename ) == 0 ) {
    548. 

  548. 				if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Warning! The file $tmp_wpcache_filename was empty. Did not rename to {$blog_cache_dir}{$cache_filename}", 5 );
    549. 

  549. 				@unlink( $tmp_wpcache_filename );
    550. 

  550. 			} else {
    551. 

  551. 				if ( !rename( $tmp_wpcache_filename, $blog_cache_dir . $cache_filename ) ) {
    552. 

  552. 					unlink( $blog_cache_dir . $cache_filename );
    553. 

  553. 					rename( $tmp_wpcache_filename, $blog_cache_dir . $cache_filename );
    554. 

  554. 				}
    555. 

  555. 				if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Renamed temp wp-cache file to {$blog_cache_dir}$cache_filename", 5 );
    556. 

  556. 				$added_cache = 1;
    557. 

  557. 			}
    558. 

  558. 		}
    559. 

  559. 		if( $fr2 ) {
    560. 

  560. 			fclose($fr2);
    561. 

  561. 			if ( $wp_cache_front_page_checks && $cache_fname == $supercachedir . $home_url[ 'path' ] . 'index.html' && !( $wp_cache_is_home ) ) {
    562. 

  562. 				wp_cache_writers_exit();
    563. 

  563. 				if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Warning! Not writing another page to front page cache.", 1 );
    564. 

  564. 				return $buffer;
    565. 

  565. 			} elseif ( filesize( $tmp_cache_filename ) == 0 ) {
    566. 

  566. 				if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Warning! The file $tmp_cache_filename was empty. Did not rename to {$cache_fname}", 5 );
    567. 

  567. 				@unlink( $tmp_cache_filename );
    568. 

  568. 			} else {
    569. 

  569. 				if ( !@rename( $tmp_cache_filename, $cache_fname ) ) {
    570. 

  570. 					@unlink( $cache_fname );
    571. 

  571. 					@rename( $tmp_cache_filename, $cache_fname );
    572. 

  572. 				}
    573. 

  573. 				if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Renamed temp supercache file to $cache_fname", 5 );
    574. 

  574. 				$added_cache = 1;
    575. 

  575. 			}
    576. 

  576. 		}
    577. 

  577. 		if( $php_fd ) {
    578. 

  578. 			fclose( $php_fd );
    579. 

  579. 			if ( $php_fname == $supercachedir . $home_url[ 'path' ] . 'index.html.php' && !( $wp_cache_is_home ) ) {
    580. 

  580. 				wp_cache_writers_exit();
    581. 

  581. 				if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Warning! Not writing another page to front page cache.", 1 );
    582. 

  582. 				return $buffer;
    583. 

  583. 			} elseif ( filesize( $tmp_php_filename ) == 0 ) {
    584. 

  584. 				if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Warning! The file $tmp_php_filename was empty. Did not rename to {$php_fname}", 5 );
    585. 

  585. 				@unlink( $tmp_php_filename );
    586. 

  586. 			} else {
    587. 

  587. 				if ( !@rename( $tmp_php_filename, $php_fname ) ) {
    588. 

  588. 					@unlink( $php_fname );
    589. 

  589. 					@rename( $tmp_php_filename, $php_fname );
    590. 

  590. 				}
    591. 

  591. 				if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Renamed temp supercache file to $php_fname", 5 );
    592. 

  592. 				$added_cache = 1;
    593. 

  593. 			}
    594. 

  594. 		}
    595. 

  595. 		if( $gz ) {
    596. 

  596. 			fclose($gz);
    597. 

  597. 			if ( filesize( $tmp_cache_filename . '.gz' ) == 0 ) {
    598. 

  598. 				if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Warning! The file {$tmp_cache_filename}.gz was empty. Did not rename to {$cache_fname}.gz", 5 );
    599. 

  599. 				@unlink( $tmp_cache_filename . '.gz' );
    600. 

  600. 			} else {
    601. 

  601. 				if ( !@rename( $tmp_cache_filename . '.gz', $cache_fname . '.gz' ) ) {
    602. 

  602. 					@unlink( $cache_fname . '.gz' );
    603. 

  603. 					@rename( $tmp_cache_filename . '.gz', $cache_fname . '.gz' );
    604. 

  604. 				}
    605. 

  605. 				if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Renamed temp supercache gz file to {$cache_fname}.gz", 5 );
    606. 

  606. 				$added_cache = 1;
    607. 

  607. 			}
    608. 

  608. 		}
    609. 

  609. 	}
    610. 

  610. 	if ( $added_cache && isset( $wp_supercache_cache_list ) && $wp_supercache_cache_list ) {
    611. 

  611. 		update_option( 'wpsupercache_count', ( get_option( 'wpsupercache_count' ) + 1 ) );
    612. 

  612. 		$last_urls = (array)get_option( 'supercache_last_cached' );
    613. 

  613. 		if ( count( $last_urls ) >= 10 )
    614. 

  614. 			$last_urls = array_slice( $last_urls, 1, 9 );
    615. 

  615. 		$last_urls[] = array( 'url' => $_SERVER[ 'REQUEST_URI' ], 'date' => date( 'Y-m-d H:i:s' ) );
    616. 

  616. 		update_option( 'supercache_last_cached', $last_urls );
    617. 

  617. 	}
    618. 

  618. 	wp_cache_writers_exit();
    619. 

  619. 	if ( !headers_sent() && $wp_cache_gzip_encoding && $gzdata) {
    620. 

  620. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Writing gzip content headers. Sending buffer to browser", 5 );
    621. 

  621. 		header( 'Content-Encoding: ' . $wp_cache_gzip_encoding );
    622. 

  622. 		header( 'Vary: Accept-Encoding, Cookie' );
    623. 

  623. 		header( 'Content-Length: ' . $gzsize );
    624. 

  624. 		return $gzdata;
    625. 

  625. 	} else {
    626. 

  626. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Sending buffer to browser", 5 );
    627. 

  627. 		return $buffer;
    628. 

  628. 	}
    629. 

  629. }
    630. 

  630. 

  631. function wp_cache_phase2_clean_cache($file_prefix) {
    632. 

  632. 	global $cache_path, $blog_cache_dir;
    633. 

  633. 

  634. 	if( !wp_cache_writers_entry() )
    635. 

  635. 		return false;
    636. 

  636. 	if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Cleaning cache in $blog_cache_dir", 3 );
    637. 

  637. 	if ( ( $handle = @opendir( $blog_cache_dir ) ) ) { 
    638. 

  638. 		while ( false !== ($file = @readdir($handle))) {
    639. 

  639. 			if ( preg_match("/^$file_prefix/", $file) )
    640. 

  640. 				@unlink( $blog_cache_dir . $file );
    641. 

  641. 		}
    642. 

  642. 		closedir($handle);
    643. 

  643. 	}
    644. 

  644. 	wp_cache_writers_exit();
    645. 

  645. }
    646. 

  646. 

  647. function prune_super_cache( $directory, $force = false, $rename = false ) {
    648. 

  648. 	global $cache_max_time, $cache_path, $super_cache_enabled, $cache_rebuild_files, $blog_cache_dir;
    649. 

  649. 

  650. 	if( !is_admin() && $super_cache_enabled == 0 )
    651. 

  651. 		return false;
    652. 

  652. 

  653. 	if( !isset( $cache_max_time ) )
    654. 

  654. 		$cache_max_time = 3600;
    655. 

  655. 

  656. 	$now = time();
    657. 

  657. 

  658. 	$protected_directories = array( $cache_path . '.htaccess', $cache_path . $blog_cache_dir . 'meta', $cache_path . 'supercache' );
    659. 

  659. 

  660. 	$oktodelete = false;
    661. 

  661. 	if (is_dir($directory)) {
    662. 

  662. 		if( $dh = @opendir( $directory ) ) {
    663. 

  663. 			$directory = trailingslashit( $directory );
    664. 

  664. 			while( ( $entry = @readdir( $dh ) ) !== false ) {
    665. 

  665. 				if ($entry == '.' || $entry == '..')
    666. 

  666. 					continue;
    667. 

  667. 				$entry = $directory . $entry;
    668. 

  668. 				prune_super_cache( $entry, $force, $rename );
    669. 

  669. 				// If entry is a directory, AND it's not a protected one, AND we're either forcing the delete, OR the file is out of date, 
    670. 

  670. 				if( is_dir( $entry ) && !in_array( $entry, $protected_directories ) && ( $force || @filemtime( $entry ) + $cache_max_time <= $now ) ) {
    671. 

  671. 					// if the directory isn't empty can't delete it
    672. 

  672. 					if( $handle = @opendir( $entry ) ) {
    673. 

  673. 						$donotdelete = false;
    674. 

  674. 						while( !$donotdelete && ( $file = @readdir( $handle ) ) !== false ) {
    675. 

  675. 							if ($file == '.' || $file == '..')
    676. 

  676. 								continue;
    677. 

  677. 							$donotdelete = true;
    678. 

  678. 						}
    679. 

  679. 						closedir($handle);
    680. 

  680. 					}
    681. 

  681. 					if( $donotdelete )
    682. 

  682. 						continue;
    683. 

  683. 					if( !$rename ) {
    684. 

  684. 						@rmdir( $entry );
    685. 

  685. 						if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "gc: deleted $entry", 2 );
    686. 

  686. 					}
    687. 

  687. 				}
    688. 

  688. 			}
    689. 

  689. 			closedir($dh);
    690. 

  690. 		}
    691. 

  691. 	} elseif( is_file($directory) && ($force || @filemtime( $directory ) + $cache_max_time <= $now ) ) {
    692. 

  692. 		$oktodelete = true;
    693. 

  693. 		if( in_array( $directory, $protected_directories ) )
    694. 

  694. 			$oktodelete = false;
    695. 

  695. 		if( $oktodelete && !$rename ) {
    696. 

  696. 			@unlink( $directory );
    697. 

  697. 		} elseif( $oktodelete && $rename ) {
    698. 

  698. 			wp_cache_rebuild_or_delete( $directory );
    699. 

  699. 		}
    700. 

  700. 	}
    701. 

  701. }
    702. 

  702. 

  703. function wp_cache_rebuild_or_delete( $file ) {
    704. 

  704. 	global $cache_rebuild_files;
    705. 

  705. 	if( strpos( $file, '?' ) !== false )
    706. 

  706. 		$file = substr( $file, 0, strpos( $file, '?' ) );
    707. 

  707. 	if( $cache_rebuild_files && substr( $file, -14 ) != '.needs-rebuild' ) {
    708. 

  708. 		if( @rename($file, $file . '.needs-rebuild') ) {
    709. 

  709. 			@touch( $file . '.needs-rebuild' );
    710. 

  710. 			if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "rebuild_or_gc: rename to {$file}.needs-rebuild", 2 );
    711. 

  711. 		} else {
    712. 

  712. 			@unlink( $file );
    713. 

  713. 			if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "rebuild_or_gc: deleted $file", 2 );
    714. 

  714. 		}
    715. 

  715. 	} else {
    716. 

  716. 		@unlink( $file );
    717. 

  717. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "rebuild_or_gc: deleted $file", 2 );
    718. 

  718. 	}
    719. 

  719. }
    720. 

  720. 

  721. function wp_cache_phase2_clean_expired( $file_prefix, $force = false ) {
    722. 

  722. 	global $cache_path, $cache_max_time, $blog_cache_dir, $wp_cache_preload_on;
    723. 

  723. 

  724. 	clearstatcache();
    725. 

  725. 	if( !wp_cache_writers_entry() )
    726. 

  726. 		return false;
    727. 

  727. 	$now = time();
    728. 

  728. 	if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Cleaning expired cache files in $blog_cache_dir", 2 );
    729. 

  729. 	if ( ( $handle = @opendir( $blog_cache_dir ) ) ) { 
    730. 

  730. 		while ( false !== ($file = readdir($handle))) {
    731. 

  731. 			if ( preg_match("/^$file_prefix/", $file) && 
    732. 

  732. 				(@filemtime( $blog_cache_dir . $file) + $cache_max_time) <= $now  ) {
    733. 

  733. 				@unlink( $blog_cache_dir . $file );
    734. 

  734. 				@unlink( $blog_cache_dir . 'meta/' . str_replace( '.html', '.meta', $file ) );
    735. 

  735. 				if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Deleting $blog_cache_dir{$file} (plus meta)", 5 );
    736. 

  736. 				continue;
    737. 

  737. 			}
    738. 

  738. 			if($file != '.' && $file != '..') {
    739. 

  739. 				if( is_dir( $blog_cache_dir . $file ) == false && (@filemtime($blog_cache_dir . $file) + $cache_max_time) <= $now  ) {
    740. 

  740. 					if( substr( $file, -9 ) != '.htaccess' ) {
    741. 

  741. 						@unlink($blog_cache_dir . $file);
    742. 

  742. 						if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Deleting $blog_cache_dir{$file}", 5 );
    743. 

  743. 					}
    744. 

  744. 				}
    745. 

  745. 			}
    746. 

  746. 		}
    747. 

  747. 		closedir($handle);
    748. 

  748. 		if ( false == $wp_cache_preload_on || true == $force ) {
    749. 

  749. 			if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Doing GC on supercache dir: {$cache_path}supercache", 2 );
    750. 

  750. 			prune_super_cache( $cache_path . 'supercache' );
    751. 

  751. 		}
    752. 

  752. 	}
    753. 

  753. 

  754. 	wp_cache_writers_exit();
    755. 

  755. 	return true;
    756. 

  756. }
    757. 

  757. 

  758. function wp_cache_shutdown_callback() {
    759. 

  759. 	global $cache_path, $cache_max_time, $file_expired, $file_prefix, $meta_file, $new_cache, $wp_cache_meta, $known_headers, $blog_id, $wp_cache_gzip_encoding, $gzsize, $cache_filename, $supercacheonly, $blog_cache_dir;
    760. 

  760. 	global $wp_cache_request_uri, $wp_cache_key, $wp_cache_object_cache, $cache_enabled, $wp_cache_blog_charset, $wp_cache_not_logged_in;
    761. 

  761. 

  762. 	$wp_cache_meta[ 'uri' ] = $_SERVER["SERVER_NAME"].preg_replace('/[ <>\'\"\r\n\t\(\)]/', '', $wp_cache_request_uri); // To avoid XSS attacks
    763. 

  763. 	$wp_cache_meta[ 'blog_id' ] = $blog_id;
    764. 

  764. 	$wp_cache_meta[ 'post' ] = wp_cache_post_id();
    765. 

  765. 	$wp_cache_meta[ 'key' ] = $wp_cache_key;
    766. 

  766. 	$wp_cache_meta = apply_filters( 'wp_cache_meta', $wp_cache_meta );
    767. 

  767. 

  768. 	$response = wp_cache_get_response_headers();
    769. 

  769. 	foreach ($known_headers as $key) {
    770. 

  770. 		if(isset($response[$key])) {
    771. 

  771. 			$wp_cache_meta[ 'headers' ][ $key ] = "$key: " . $response[$key];
    772. 

  772. 		}
    773. 

  773. 	}
    774. 

  774. 

  775. 	if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "wp_cache_shutdown_callback: collecting meta data.", 2 );
    776. 

  776. 

  777. 	if (!isset( $response['Last-Modified'] )) {
    778. 

  778. 		$value = gmdate('D, d M Y H:i:s') . ' GMT';
    779. 

  779. 		/* Dont send this the first time */
    780. 

  780. 		/* @header('Last-Modified: ' . $value); */
    781. 

  781. 		$wp_cache_meta[ 'headers' ][ 'Last-Modified' ] = "Last-Modified: $value";
    782. 

  782. 	}
    783. 

  783. 	if ( !isset( $response[ 'Content-Type' ] ) && !isset( $response[ 'Content-type' ] ) ) {
    784. 

  784. 		// On some systems, headers set by PHP can't be fetched from
    785. 

  785. 		// the output buffer. This is a last ditch effort to set the
    786. 

  786. 		// correct Content-Type header for feeds, if we didn't see
    787. 

  787. 		// it in the response headers already. -- dougal
    788. 

  788. 		if (is_feed()) {
    789. 

  789. 			$type = get_query_var('feed');
    790. 

  790. 			$type = str_replace('/','',$type);
    791. 

  791. 			switch ($type) {
    792. 

  792. 				case 'atom':
    793. 

  793. 					$value = "application/atom+xml";
    794. 

  794. 					break;
    795. 

  795. 				case 'rdf':
    796. 

  796. 					$value = "application/rdf+xml";
    797. 

  797. 					break;
    798. 

  798. 				case 'rss':
    799. 

  799. 				case 'rss2':
    800. 

  800. 				default:
    801. 

  801. 					$value = "application/rss+xml";
    802. 

  802. 			}
    803. 

  803. 		} else { // not a feed
    804. 

  804. 			$value = get_option( 'html_type' );
    805. 

  805. 			if( $value == '' )
    806. 

  806. 				$value = 'text/html';
    807. 

  807. 		}
    808. 

  808. 		$value .=  "; charset=\"" . $wp_cache_blog_charset . "\"";
    809. 

  809. 

  810. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Sending 'Content-Type: $value' header.", 2 );
    811. 

  811. 		@header("Content-Type: $value");
    812. 

  812. 		$wp_cache_meta[ 'headers' ][ 'Content-Type' ] = "Content-Type: $value";
    813. 

  813. 	}
    814. 

  814. 

  815. 	if ( !$supercacheonly && !$wp_cache_not_logged_in && $new_cache ) {
    816. 

  816. 		if( !isset( $wp_cache_meta[ 'dynamic' ] ) && $wp_cache_gzip_encoding && !in_array( 'Content-Encoding: ' . $wp_cache_gzip_encoding, $wp_cache_meta[ 'headers' ] ) ) {
    817. 

  817. 			if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Sending gzip headers.", 2 );
    818. 

  818. 			$wp_cache_meta[ 'headers' ][ 'Content-Encoding' ] = 'Content-Encoding: ' . $wp_cache_gzip_encoding;
    819. 

  819. 			$wp_cache_meta[ 'headers' ][ 'Vary' ] = 'Vary: Accept-Encoding, Cookie';
    820. 

  820. 		}
    821. 

  821. 

  822. 		$serial = serialize($wp_cache_meta);
    823. 

  823. 		if( wp_cache_writers_entry() ) {
    824. 

  824. 			if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Writing meta file: {$blog_cache_dir}meta/{$meta_file}", 2 );
    825. 

  825. 			if ( false == $wp_cache_object_cache ) {
    826. 

  826. 				$tmp_meta_filename = $blog_cache_dir . 'meta/' . uniqid( mt_rand(), true ) . '.tmp';
    827. 

  827. 				$fr = @fopen( $tmp_meta_filename, 'w');
    828. 

  828. 				if( !$fr )
    829. 

  829. 					@mkdir( $blog_cache_dir . 'meta' );
    830. 

  830. 				$fr = @fopen( $tmp_meta_filename, 'w');
    831. 

  831. 				if ( $fr ) {
    832. 

  832. 					fputs($fr, $serial);
    833. 

  833. 					fclose($fr);
    834. 

  834. 					@chmod( $tmp_meta_filename, 0666 & ~umask());
    835. 

  835. 					if( !@rename( $tmp_meta_filename, $blog_cache_dir . 'meta/' . $meta_file ) ) {
    836. 

  836. 						@unlink( $blog_cache_dir . 'meta/' . $meta_file );
    837. 

  837. 						@rename( $tmp_meta_filename, $blog_cache_dir . 'meta/' . $meta_file );
    838. 

  838. 					}
    839. 

  839. 				} else {
    840. 

  840. 					if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Problem writing meta file: {$blog_cache_dir}meta/{$meta_file}", 2 );
    841. 

  841. 				}
    842. 

  842. 			} elseif ( $cache_enabled ) {
    843. 

  843. 				$oc_key = get_oc_key() . ".meta";
    844. 

  844. 				if ( gzip_accepted() )
    845. 

  845. 					$oc_key .= ".gz";
    846. 

  846. 				wp_cache_set( $oc_key, $serial, 'supercache', $cache_max_time );
    847. 

  847. 			}
    848. 

  848. 			wp_cache_writers_exit();
    849. 

  849. 		}
    850. 

  850. 	}
    851. 

  851. 	global $time_to_gc_cache;
    852. 

  852. 	if( isset( $time_to_gc_cache ) && $time_to_gc_cache == 1 ) {
    853. 

  853. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Executing wp_cache_gc action.", 3 );
    854. 

  854. 		do_action( 'wp_cache_gc' );
    855. 

  855. 	}
    856. 

  856. }
    857. 

  857. 

  858. function wp_cache_no_postid($id) {
    859. 

  859. 	return wp_cache_post_change(wp_cache_post_id());
    860. 

  860. }
    861. 

  861. 

  862. function wp_cache_get_postid_from_comment( $comment_id, $status = 'NA' ) {
    863. 

  863. 	global $super_cache_enabled, $wp_cache_request_uri;
    864. 

  864. 	$comment = get_comment($comment_id, ARRAY_A);
    865. 

  865. 	if ( $status != 'NA' ) {
    866. 

  866. 		$comment[ 'old_comment_approved' ] = $comment[ 'comment_approved' ];
    867. 

  867. 		$comment[ 'comment_approved' ] = $status;
    868. 

  868. 	}
    869. 

  869. 

  870. 	if ( ( $status == 'trash' || $status == 'spam' ) && $comment[ 'comment_approved' ] != 1 ) {
    871. 

  871. 		// don't modify cache if moderated comments are trashed or spammed
    872. 

  872. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Moderated comment deleted or spammed. Don't delete any cache files.", 4 );
    873. 

  873. 		return wp_cache_post_id();
    874. 

  874. 	}
    875. 

  875. 	$postid = $comment['comment_post_ID'];
    876. 

  876. 	// Do nothing if comment is not moderated
    877. 

  877. 	// http://ocaoimh.ie/2006/12/05/caching-wordpress-with-wp-cache-in-a-spam-filled-world
    878. 

  878. 	if ( !preg_match('/wp-admin\//', $wp_cache_request_uri) ) {
    879. 

  879. 		if ( $comment['comment_approved'] == 'delete' && ( isset( $comment[ 'old_comment_approved' ] ) && $comment[ 'old_comment_approved' ] == 0 ) ) { // do nothing if moderated comments are deleted
    880. 

  880. 			if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Moderated comment deleted. Don't delete any cache files.", 4 );
    881. 

  881. 			return $postid;
    882. 

  882. 		} elseif ( $comment['comment_approved'] == 'spam' ) {
    883. 

  883. 			if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Spam comment. Don't delete any cache files.", 4 );
    884. 

  884. 			return $postid;
    885. 

  885. 		} elseif( $comment['comment_approved'] == '0' ) {
    886. 

  886. 			if ( $comment[ 'content_type' ] == '' ) {
    887. 

  887. 				if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Moderated comment. Don't delete supercache file until comment approved.", 4 );
    888. 

  888. 				$super_cache_enabled = 0; // don't remove the super cache static file until comment is approved
    889. 

  889. 			} else {
    890. 

  890. 				if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Moderated ping or trackback. Not deleting cache files..", 4 );
    891. 

  891. 				return $postid;
    892. 

  892. 			}
    893. 

  893. 		}
    894. 

  894. 	}
    895. 

  895. 	// We must check it up again due to WP bugs calling two different actions
    896. 

  896. 	// for delete, for example both wp_set_comment_status and delete_comment 
    897. 

  897. 	// are called when deleting a comment
    898. 

  898. 	if ($postid > 0)  {
    899. 

  899. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Post $postid changed. Update cache.", 4 );
    900. 

  900. 		return wp_cache_post_change( $postid );
    901. 

  901. 	} elseif ( $_GET[ 'delete_all' ] != 'Empty Trash' && $_GET[ 'delete_all2' ] != 'Empty Spam' ) {
    902. 

  902. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Unknown post changed. Update cache.", 4 );
    903. 

  903. 		return wp_cache_post_change( wp_cache_post_id() );
    904. 

  904. 	}
    905. 

  905. }
    906. 

  906. 

  907. /* Clear out the cache directory. */
    908. 

  908. function wp_cache_clear_cache() {
    909. 

  909. 	global $cache_path, $wp_cache_object_cache;
    910. 

  910. 	if ( $wp_cache_object_cache ) {
    911. 

  911. 		reset_oc_version();
    912. 

  912. 	} else {
    913. 

  913. 		prune_super_cache( $cache_path . 'supercache/', true );
    914. 

  914. 		prune_super_cache( $cache_path, true );
    915. 

  915. 	}
    916. 

  916. }
    917. 

  917. 

  918. function wp_cache_post_edit($post_id) {
    919. 

  919. 	global $wp_cache_clear_on_post_edit, $cache_path, $blog_cache_dir;
    920. 

  920. 	if( $wp_cache_clear_on_post_edit ) {
    921. 

  921. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Clearing cache $blog_cache_dir and {$cache_path}supercache/ on post edit per config.", 2 );
    922. 

  922. 		if ( $wp_cache_object_cache ) {
    923. 

  923. 			reset_oc_version();
    924. 

  924. 		} else {
    925. 

  925. 			prune_super_cache( $blog_cache_dir, true );
    926. 

  926. 			prune_super_cache( $cache_path . 'supercache/', true );
    927. 

  927. 		}
    928. 

  928. 	} else {
    929. 

  929. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Clearing cache for post $post_id on post edit.", 2 );
    930. 

  930. 		wp_cache_post_change( $post_id );
    931. 

  931. 	}
    932. 

  932. }
    933. 

  933. 

  934. function wp_cache_post_id_gc( $siteurl, $post_id, $all = 'all' ) {
    935. 

  935. 	global $cache_path, $wp_cache_object_cache;
    936. 

  936. 	
    937. 

  937. 	if ( $wp_cache_object_cache )
    938. 

  938. 		reset_oc_version();
    939. 

  939. 

  940. 	$post_id = intval( $post_id );
    941. 

  941. 	if( $post_id == 0 )
    942. 

  942. 		return;
    943. 

  943. 

  944. 	if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "wp_cache_post_id_gc post_id: $post_id " . post_permalink( $post_id ) . " clearing cache in $dir{$permalink}.", 4 );
    945. 

  945. 	$permalink = trailingslashit( str_replace( get_option( 'home' ), '', post_permalink( $post_id ) ) );
    946. 

  946. 	$dir = $cache_path . 'supercache/' . $siteurl;
    947. 

  947. 	if ( $all == 'all' ) {
    948. 

  948. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "wp_cache_post_id_gc clearing cache in $dir{$permalink}.", 4 );
    949. 

  949. 		prune_super_cache( $dir . $permalink, true, true );
    950. 

  950. 		do_action( 'gc_cache', 'prune', $permalink );
    951. 

  951. 		@rmdir( $dir . $permalink );
    952. 

  952. 	} else {
    953. 

  953. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "wp_cache_post_id_gc clearing cached index.html(.gz) in $dir{$permalink}.", 4 );
    954. 

  954. 		prune_super_cache( $dir . $permalink . 'index.html', true, true );
    955. 

  955. 		prune_super_cache( $dir . $permalink . 'index.html.php', true, true );
    956. 

  956. 		prune_super_cache( $dir . $permalink . 'index.html.gz', true, true );
    957. 

  957. 		do_action( 'gc_cache', 'prune', $permalink );
    958. 

  958. 	}
    959. 

  959. 	if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "wp_cache_post_id_gc clearing cache in {$dir}page/.", 4 );
    960. 

  960. 	prune_super_cache( $dir . 'page/', true );
    961. 

  961. 	do_action( 'gc_cache', 'prune', '/page/' );
    962. 

  962. }
    963. 

  963. 

  964. function wp_cache_post_change( $post_id ) {
    965. 

  965. 	global $file_prefix, $cache_path, $blog_id, $super_cache_enabled, $blog_cache_dir, $blogcacheid, $wp_cache_refresh_single_only;
    966. 

  966. 	static $last_processed = -1;
    967. 

  967. 

  968. 	if ($post_id == $last_processed) return $post_id;
    969. 

  969. 	$last_processed = $post_id;
    970. 

  970. 	$post = get_post( $post_id );
    971. 

  971. 	if( $post->post_status == 'draft' ) {
    972. 

  972. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "wp_cache_post_change: draft post, not deleting any cache files.", 4 );
    973. 

  973. 		return $post_id;
    974. 

  974. 	}
    975. 

  975. 

  976. 	if( !wp_cache_writers_entry() )
    977. 

  977. 		return $post_id;
    978. 

  978. 

  979. 	if ( isset( $wp_cache_refresh_single_only ) && $wp_cache_refresh_single_only && strpos( $_SERVER[ 'REQUEST_URI' ], 'wp-comments-post.php' ) ) {
    980. 

  980. 		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "wp_cache_post_change: comment detected. only deleting post page.", 4 );
    981. 

  981. 		$all = false;
    982. 

  982. 	} else {
    983. 

  983. 		$all = true;
    984. 

  984. 	}
    985. 

  985. 

  986. 	if ( $wp_cache_object_cache )
    987. 

  987. 		reset_oc_version();
    988. 

  988. 

  989. 	$permalink = trailingslashit( str_replace( get_option( 'siteurl' ), '', post_permalink( $post_id ) ) );
    990. 

  990. 	if( $super_cache_enabled ) {
    991. 

  991. 		$siteurl = trailingslashit( strtolower( preg_replace( '/:.*$/', '', str_replace( 'http://', '', get_option( 'home' ) ) ) ) );
    992. 

  992. 		// make sure the front page has a rebuild file
    993. 

  993. 		if ( $all == true ) {
    994. 

  994. 			if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Post change: deleting cache files in " . $cache_path . 'supercache/' . $siteurl, 4 );
    995. 

  995. 			prune_super_cache( $cache_path . 'supercache/' . $siteurl . 'index.html', true, true ); 
    996. 

  996. 			prune_super_cache( $cache_path . 'supercache/' . $siteurl . 'index.html.php', true, true ); 
    997. 

  997. 			prune_super_cache( $cache_path . 'supercache/' . $siteurl . 'index.html.gz', true, true );
    998. 

  998. 			do_action( 'gc_cache', 'prune', 'homepage' );
    999. 

  999. 		}
    1000. 

  1000. 		wp_cache_post_id_gc( $siteurl, $post_id );
    1001. 

  1001. 		if( $all == true && get_option( 'show_on_front' ) == 'page' ) {
    1002. 

  1002. 			if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Post change: deleting page_on_front and_page_for_posts pages.", 4 );
    1003. 

  1003. 			if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Post change: page_on_front " . get_option( 'page_on_front' ), 4 );
    1004. 

  1004. 			wp_cache_post_id_gc( $siteurl, get_option( 'page_on_front' ), 'single' );
    1005. 

  1005. 			$permalink = trailingslashit( str_replace( get_option( 'home' ), '', post_permalink( get_option( 'page_for_posts' ) ) ) );
    1006. 

  1006. 			prune_super_cache( $cache_path . 'supercache/' . $siteurl . $permalink . 'index.html', true, true ); 
    1007. 

  1007. 			prune_super_cache( $cache_path . 'supercache/' . $siteurl . $permalink . 'index.html.php', true, true ); 
    1008. 

  1008. 			prune_super_cache( $cache_path . 'supercache/' . $siteurl . $permalink . 'index.html.gz', true, true );
    1009. 

  1009. 			do_action( 'gc_cache', 'prune', $permalink );
    1010. 

  1010. 		}
    1011. 

  1011. 	}
    1012. 

  1012. 

  1013. 	$matches = array();
    1014. 

  1014. 	if ( ($handle = @opendir( $blog_cache_dir . 'meta/' )) ) { 
    1015. 

  1015. 		while ( false !== ($file = readdir($handle))) {
    1016. 

  1016. 			if ( preg_match("/^({$file_prefix}{$blogcacheid}.*)\.meta/", $file, $matches) ) {
    1017. 

  1017. 				$meta_pathname = $blog_cache_dir . 'meta/' . $file;
    1018. 

  1018. 				$content_pathname = $blog_cache_dir . $matches[1] . ".html";
    1019. 

  1019. 				$meta = unserialize(@file_get_contents($meta_pathname));
    1020. 

  1020. 				if( false == is_array( $meta ) ) {
    1021. 

  1021. 					if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Post change cleaning up stray file: $content_pathname", 4 );
    1022. 

  1022. 					@unlink($meta_pathname);
    1023. 

  1023. 					@unlink($content_pathname);
    1024. 

  1024. 					continue;
    1025. 

  1025. 				}
    1026. 

  1026. 				if ($post_id > 0 && $meta) {
    1027. 

  1027. 					if ( $meta[ 'blog_id' ] == $blog_id  && ( ( $all == true && !$meta[ 'post' ] ) || $meta[ 'post' ] == $post_id) ) {
    1028. 

  1028. 						if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Post change: deleting post cache files for {$meta[ 'uri' ]}: $content_pathname", 4 );
    1029. 

  1029. 						@unlink($meta_pathname);
    1030. 

  1030. 						@unlink($content_pathname);
    1031. 

  1031. 						if ( $super_cache_enabled == true ) {
    1032. 

  1032. 							@wp_cache_rebuild_or_delete($cache_path . 'supercache/' . trailingslashit( $meta[ 'uri' ] ) . 'index.html');
    1033. 

  1033. 							@wp_cache_rebuild_or_delete($cache_path . 'supercache/' . trailingslashit( $meta[ 'uri' ] ) . 'index.html.php');
    1034. 

  1034. 							@wp_cache_rebuild_or_delete($cache_path . 'supercache/' . trailingslashit( $meta[ 'uri' ] ) . 'index.html.gz');
    1035. 

  1035. 							do_action( 'gc_cache', 'rebuild', trailingslashit( $meta[ 'uri' ] ) );
    1036. 

  1036. 						}
    1037. 

  1037. 					}
    1038. 

  1038. 				} elseif ($meta[ 'blog_id' ] == $blog_id) {
    1039. 

  1039. 					if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Post change: deleting cache files for {$meta[ 'uri' ]}: $content_pathname", 4 );
    1040. 

  1040. 					@unlink($meta_pathname);
    1041. 

  1041. 					@unlink($content_pathname);
    1042. 

  1042. 					if ( $super_cache_enabled == true ) {
    1043. 

  1043. 						@wp_cache_rebuild_or_delete($cache_path . 'supercache/' . trailing…
    1044.

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