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PHP Cross Reference of WordPress Trunk (Updated Daily) |
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1 <?php 2 /** 3 * Main WordPress API 4 * 5 * @package WordPress 6 */ 7 8 require ( ABSPATH . WPINC . '/option.php' ); 9 10 /** 11 * Converts given date string into a different format. 12 * 13 * $format should be either a PHP date format string, e.g. 'U' for a Unix 14 * timestamp, or 'G' for a Unix timestamp assuming that $date is GMT. 15 * 16 * If $translate is true then the given date and format string will 17 * be passed to date_i18n() for translation. 18 * 19 * @since 0.71 20 * 21 * @param string $format Format of the date to return. 22 * @param string $date Date string to convert. 23 * @param bool $translate Whether the return date should be translated. Default is true. 24 * @return string|int Formatted date string, or Unix timestamp. 25 */ 26 function mysql2date( $format, $date, $translate = true ) { 27 if ( empty( $date ) ) 28 return false; 29 30 if ( 'G' == $format ) 31 return strtotime( $date . ' +0000' ); 32 33 $i = strtotime( $date ); 34 35 if ( 'U' == $format ) 36 return $i; 37 38 if ( $translate ) 39 return date_i18n( $format, $i ); 40 else 41 return date( $format, $i ); 42 } 43 44 /** 45 * Retrieve the current time based on specified type. 46 * 47 * The 'mysql' type will return the time in the format for MySQL DATETIME field. 48 * The 'timestamp' type will return the current timestamp. 49 * 50 * If $gmt is set to either '1' or 'true', then both types will use GMT time. 51 * if $gmt is false, the output is adjusted with the GMT offset in the WordPress option. 52 * 53 * @since 1.0.0 54 * 55 * @param string $type Either 'mysql' or 'timestamp'. 56 * @param int|bool $gmt Optional. Whether to use GMT timezone. Default is false. 57 * @return int|string String if $type is 'gmt', int if $type is 'timestamp'. 58 */ 59 function current_time( $type, $gmt = 0 ) { 60 switch ( $type ) { 61 case 'mysql': 62 return ( $gmt ) ? gmdate( 'Y-m-d H:i:s' ) : gmdate( 'Y-m-d H:i:s', ( time() + ( get_option( 'gmt_offset' ) * 3600 ) ) ); 63 break; 64 case 'timestamp': 65 return ( $gmt ) ? time() : time() + ( get_option( 'gmt_offset' ) * 3600 ); 66 break; 67 } 68 } 69 70 /** 71 * Retrieve the date in localized format, based on timestamp. 72 * 73 * If the locale specifies the locale month and weekday, then the locale will 74 * take over the format for the date. If it isn't, then the date format string 75 * will be used instead. 76 * 77 * @since 0.71 78 * 79 * @param string $dateformatstring Format to display the date. 80 * @param int $unixtimestamp Optional. Unix timestamp. 81 * @param bool $gmt Optional, default is false. Whether to convert to GMT for time. 82 * @return string The date, translated if locale specifies it. 83 */ 84 function date_i18n( $dateformatstring, $unixtimestamp = false, $gmt = false ) { 85 global $wp_locale; 86 $i = $unixtimestamp; 87 88 if ( false === $i ) { 89 if ( ! $gmt ) 90 $i = current_time( 'timestamp' ); 91 else 92 $i = time(); 93 // we should not let date() interfere with our 94 // specially computed timestamp 95 $gmt = true; 96 } 97 98 // store original value for language with untypical grammars 99 // see http://core.trac.wordpress.org/ticket/9396 100 $req_format = $dateformatstring; 101 102 $datefunc = $gmt? 'gmdate' : 'date'; 103 104 if ( ( !empty( $wp_locale->month ) ) && ( !empty( $wp_locale->weekday ) ) ) { 105 $datemonth = $wp_locale->get_month( $datefunc( 'm', $i ) ); 106 $datemonth_abbrev = $wp_locale->get_month_abbrev( $datemonth ); 107 $dateweekday = $wp_locale->get_weekday( $datefunc( 'w', $i ) ); 108 $dateweekday_abbrev = $wp_locale->get_weekday_abbrev( $dateweekday ); 109 $datemeridiem = $wp_locale->get_meridiem( $datefunc( 'a', $i ) ); 110 $datemeridiem_capital = $wp_locale->get_meridiem( $datefunc( 'A', $i ) ); 111 $dateformatstring = ' '.$dateformatstring; 112 $dateformatstring = preg_replace( "/([^\\\])D/", "\\1" . backslashit( $dateweekday_abbrev ), $dateformatstring ); 113 $dateformatstring = preg_replace( "/([^\\\])F/", "\\1" . backslashit( $datemonth ), $dateformatstring ); 114 $dateformatstring = preg_replace( "/([^\\\])l/", "\\1" . backslashit( $dateweekday ), $dateformatstring ); 115 $dateformatstring = preg_replace( "/([^\\\])M/", "\\1" . backslashit( $datemonth_abbrev ), $dateformatstring ); 116 $dateformatstring = preg_replace( "/([^\\\])a/", "\\1" . backslashit( $datemeridiem ), $dateformatstring ); 117 $dateformatstring = preg_replace( "/([^\\\])A/", "\\1" . backslashit( $datemeridiem_capital ), $dateformatstring ); 118 119 $dateformatstring = substr( $dateformatstring, 1, strlen( $dateformatstring ) -1 ); 120 } 121 $timezone_formats = array( 'P', 'I', 'O', 'T', 'Z', 'e' ); 122 $timezone_formats_re = implode( '|', $timezone_formats ); 123 if ( preg_match( "/$timezone_formats_re/", $dateformatstring ) ) { 124 $timezone_string = get_option( 'timezone_string' ); 125 if ( $timezone_string ) { 126 $timezone_object = timezone_open( $timezone_string ); 127 $date_object = date_create( null, $timezone_object ); 128 foreach( $timezone_formats as $timezone_format ) { 129 if ( false !== strpos( $dateformatstring, $timezone_format ) ) { 130 $formatted = date_format( $date_object, $timezone_format ); 131 $dateformatstring = ' '.$dateformatstring; 132 $dateformatstring = preg_replace( "/([^\\\])$timezone_format/", "\\1" . backslashit( $formatted ), $dateformatstring ); 133 $dateformatstring = substr( $dateformatstring, 1, strlen( $dateformatstring ) -1 ); 134 } 135 } 136 } 137 } 138 $j = @$datefunc( $dateformatstring, $i ); 139 // allow plugins to redo this entirely for languages with untypical grammars 140 $j = apply_filters('date_i18n', $j, $req_format, $i, $gmt); 141 return $j; 142 } 143 144 /** 145 * Convert integer number to format based on the locale. 146 * 147 * @since 2.3.0 148 * 149 * @param int $number The number to convert based on locale. 150 * @param int $decimals Precision of the number of decimal places. 151 * @return string Converted number in string format. 152 */ 153 function number_format_i18n( $number, $decimals = 0 ) { 154 global $wp_locale; 155 $formatted = number_format( $number, absint( $decimals ), $wp_locale->number_format['decimal_point'], $wp_locale->number_format['thousands_sep'] ); 156 return apply_filters( 'number_format_i18n', $formatted ); 157 } 158 159 /** 160 * Convert number of bytes largest unit bytes will fit into. 161 * 162 * It is easier to read 1kB than 1024 bytes and 1MB than 1048576 bytes. Converts 163 * number of bytes to human readable number by taking the number of that unit 164 * that the bytes will go into it. Supports TB value. 165 * 166 * Please note that integers in PHP are limited to 32 bits, unless they are on 167 * 64 bit architecture, then they have 64 bit size. If you need to place the 168 * larger size then what PHP integer type will hold, then use a string. It will 169 * be converted to a double, which should always have 64 bit length. 170 * 171 * Technically the correct unit names for powers of 1024 are KiB, MiB etc. 172 * @link http://en.wikipedia.org/wiki/Byte 173 * 174 * @since 2.3.0 175 * 176 * @param int|string $bytes Number of bytes. Note max integer size for integers. 177 * @param int $decimals Precision of number of decimal places. Deprecated. 178 * @return bool|string False on failure. Number string on success. 179 */ 180 function size_format( $bytes, $decimals = 0 ) { 181 $quant = array( 182 // ========================= Origin ==== 183 'TB' => 1099511627776, // pow( 1024, 4) 184 'GB' => 1073741824, // pow( 1024, 3) 185 'MB' => 1048576, // pow( 1024, 2) 186 'kB' => 1024, // pow( 1024, 1) 187 'B ' => 1, // pow( 1024, 0) 188 ); 189 foreach ( $quant as $unit => $mag ) 190 if ( doubleval($bytes) >= $mag ) 191 return number_format_i18n( $bytes / $mag, $decimals ) . ' ' . $unit; 192 193 return false; 194 } 195 196 /** 197 * Get the week start and end from the datetime or date string from mysql. 198 * 199 * @since 0.71 200 * 201 * @param string $mysqlstring Date or datetime field type from mysql. 202 * @param int $start_of_week Optional. Start of the week as an integer. 203 * @return array Keys are 'start' and 'end'. 204 */ 205 function get_weekstartend( $mysqlstring, $start_of_week = '' ) { 206 $my = substr( $mysqlstring, 0, 4 ); // Mysql string Year 207 $mm = substr( $mysqlstring, 8, 2 ); // Mysql string Month 208 $md = substr( $mysqlstring, 5, 2 ); // Mysql string day 209 $day = mktime( 0, 0, 0, $md, $mm, $my ); // The timestamp for mysqlstring day. 210 $weekday = date( 'w', $day ); // The day of the week from the timestamp 211 if ( !is_numeric($start_of_week) ) 212 $start_of_week = get_option( 'start_of_week' ); 213 214 if ( $weekday < $start_of_week ) 215 $weekday += 7; 216 217 $start = $day - 86400 * ( $weekday - $start_of_week ); // The most recent week start day on or before $day 218 $end = $start + 604799; // $start + 7 days - 1 second 219 return compact( 'start', 'end' ); 220 } 221 222 /** 223 * Unserialize value only if it was serialized. 224 * 225 * @since 2.0.0 226 * 227 * @param string $original Maybe unserialized original, if is needed. 228 * @return mixed Unserialized data can be any type. 229 */ 230 function maybe_unserialize( $original ) { 231 if ( is_serialized( $original ) ) // don't attempt to unserialize data that wasn't serialized going in 232 return @unserialize( $original ); 233 return $original; 234 } 235 236 /** 237 * Check value to find if it was serialized. 238 * 239 * If $data is not an string, then returned value will always be false. 240 * Serialized data is always a string. 241 * 242 * @since 2.0.5 243 * 244 * @param mixed $data Value to check to see if was serialized. 245 * @return bool False if not serialized and true if it was. 246 */ 247 function is_serialized( $data ) { 248 // if it isn't a string, it isn't serialized 249 if ( ! is_string( $data ) ) 250 return false; 251 $data = trim( $data ); 252 if ( 'N;' == $data ) 253 return true; 254 $length = strlen( $data ); 255 if ( $length < 4 ) 256 return false; 257 if ( ':' !== $data[1] ) 258 return false; 259 $lastc = $data[$length-1]; 260 if ( ';' !== $lastc && '}' !== $lastc ) 261 return false; 262 $token = $data[0]; 263 switch ( $token ) { 264 case 's' : 265 if ( '"' !== $data[$length-2] ) 266 return false; 267 case 'a' : 268 case 'O' : 269 return (bool) preg_match( "/^{$token}:[0-9]+:/s", $data ); 270 case 'b' : 271 case 'i' : 272 case 'd' : 273 return (bool) preg_match( "/^{$token}:[0-9.E-]+;\$/", $data ); 274 } 275 return false; 276 } 277 278 /** 279 * Check whether serialized data is of string type. 280 * 281 * @since 2.0.5 282 * 283 * @param mixed $data Serialized data 284 * @return bool False if not a serialized string, true if it is. 285 */ 286 function is_serialized_string( $data ) { 287 // if it isn't a string, it isn't a serialized string 288 if ( !is_string( $data ) ) 289 return false; 290 $data = trim( $data ); 291 $length = strlen( $data ); 292 if ( $length < 4 ) 293 return false; 294 elseif ( ':' !== $data[1] ) 295 return false; 296 elseif ( ';' !== $data[$length-1] ) 297 return false; 298 elseif ( $data[0] !== 's' ) 299 return false; 300 elseif ( '"' !== $data[$length-2] ) 301 return false; 302 else 303 return true; 304 } 305 306 /** 307 * Serialize data, if needed. 308 * 309 * @since 2.0.5 310 * 311 * @param mixed $data Data that might be serialized. 312 * @return mixed A scalar data 313 */ 314 function maybe_serialize( $data ) { 315 if ( is_array( $data ) || is_object( $data ) ) 316 return serialize( $data ); 317 318 // Double serialization is required for backward compatibility. 319 // See http://core.trac.wordpress.org/ticket/12930 320 if ( is_serialized( $data ) ) 321 return serialize( $data ); 322 323 return $data; 324 } 325 326 /** 327 * Retrieve post title from XMLRPC XML. 328 * 329 * If the title element is not part of the XML, then the default post title from 330 * the $post_default_title will be used instead. 331 * 332 * @package WordPress 333 * @subpackage XMLRPC 334 * @since 0.71 335 * 336 * @global string $post_default_title Default XMLRPC post title. 337 * 338 * @param string $content XMLRPC XML Request content 339 * @return string Post title 340 */ 341 function xmlrpc_getposttitle( $content ) { 342 global $post_default_title; 343 if ( preg_match( '/<title>(.+?)<\/title>/is', $content, $matchtitle ) ) { 344 $post_title = $matchtitle[1]; 345 } else { 346 $post_title = $post_default_title; 347 } 348 return $post_title; 349 } 350 351 /** 352 * Retrieve the post category or categories from XMLRPC XML. 353 * 354 * If the category element is not found, then the default post category will be 355 * used. The return type then would be what $post_default_category. If the 356 * category is found, then it will always be an array. 357 * 358 * @package WordPress 359 * @subpackage XMLRPC 360 * @since 0.71 361 * 362 * @global string $post_default_category Default XMLRPC post category. 363 * 364 * @param string $content XMLRPC XML Request content 365 * @return string|array List of categories or category name. 366 */ 367 function xmlrpc_getpostcategory( $content ) { 368 global $post_default_category; 369 if ( preg_match( '/<category>(.+?)<\/category>/is', $content, $matchcat ) ) { 370 $post_category = trim( $matchcat[1], ',' ); 371 $post_category = explode( ',', $post_category ); 372 } else { 373 $post_category = $post_default_category; 374 } 375 return $post_category; 376 } 377 378 /** 379 * XMLRPC XML content without title and category elements. 380 * 381 * @package WordPress 382 * @subpackage XMLRPC 383 * @since 0.71 384 * 385 * @param string $content XMLRPC XML Request content 386 * @return string XMLRPC XML Request content without title and category elements. 387 */ 388 function xmlrpc_removepostdata( $content ) { 389 $content = preg_replace( '/<title>(.+?)<\/title>/si', '', $content ); 390 $content = preg_replace( '/<category>(.+?)<\/category>/si', '', $content ); 391 $content = trim( $content ); 392 return $content; 393 } 394 395 /** 396 * Check content for video and audio links to add as enclosures. 397 * 398 * Will not add enclosures that have already been added and will 399 * remove enclosures that are no longer in the post. This is called as 400 * pingbacks and trackbacks. 401 * 402 * @package WordPress 403 * @since 1.5.0 404 * 405 * @uses $wpdb 406 * 407 * @param string $content Post Content 408 * @param int $post_ID Post ID 409 */ 410 function do_enclose( $content, $post_ID ) { 411 global $wpdb; 412 413 //TODO: Tidy this ghetto code up and make the debug code optional 414 include_once ( ABSPATH . WPINC . '/class-IXR.php' ); 415 416 $post_links = array(); 417 418 $pung = get_enclosed( $post_ID ); 419 420 $ltrs = '\w'; 421 $gunk = '/#~:.?+=&%@!\-'; 422 $punc = '.:?\-'; 423 $any = $ltrs . $gunk . $punc; 424 425 preg_match_all( "{\b http : [$any] +? (?= [$punc] * [^$any] | $)}x", $content, $post_links_temp ); 426 427 foreach ( $pung as $link_test ) { 428 if ( !in_array( $link_test, $post_links_temp[0] ) ) { // link no longer in post 429 $mids = $wpdb->get_col( $wpdb->prepare("SELECT meta_id FROM $wpdb->postmeta WHERE post_id = %d AND meta_key = 'enclosure' AND meta_value LIKE (%s)", $post_ID, like_escape( $link_test ) . '%') ); 430 foreach ( $mids as $mid ) 431 delete_metadata_by_mid( 'post', $mid ); 432 } 433 } 434 435 foreach ( (array) $post_links_temp[0] as $link_test ) { 436 if ( !in_array( $link_test, $pung ) ) { // If we haven't pung it already 437 $test = @parse_url( $link_test ); 438 if ( false === $test ) 439 continue; 440 if ( isset( $test['query'] ) ) 441 $post_links[] = $link_test; 442 elseif ( isset($test['path']) && ( $test['path'] != '/' ) && ($test['path'] != '' ) ) 443 $post_links[] = $link_test; 444 } 445 } 446 447 foreach ( (array) $post_links as $url ) { 448 if ( $url != '' && !$wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE post_id = %d AND meta_key = 'enclosure' AND meta_value LIKE (%s)", $post_ID, like_escape( $url ) . '%' ) ) ) { 449 450 if ( $headers = wp_get_http_headers( $url) ) { 451 $len = isset( $headers['content-length'] ) ? (int) $headers['content-length'] : 0; 452 $type = isset( $headers['content-type'] ) ? $headers['content-type'] : ''; 453 $allowed_types = array( 'video', 'audio' ); 454 455 // Check to see if we can figure out the mime type from 456 // the extension 457 $url_parts = @parse_url( $url ); 458 if ( false !== $url_parts ) { 459 $extension = pathinfo( $url_parts['path'], PATHINFO_EXTENSION ); 460 if ( !empty( $extension ) ) { 461 foreach ( get_allowed_mime_types( ) as $exts => $mime ) { 462 if ( preg_match( '!^(' . $exts . ')$!i', $extension ) ) { 463 $type = $mime; 464 break; 465 } 466 } 467 } 468 } 469 470 if ( in_array( substr( $type, 0, strpos( $type, "/" ) ), $allowed_types ) ) { 471 add_post_meta( $post_ID, 'enclosure', "$url\n$len\n$mime\n" ); 472 } 473 } 474 } 475 } 476 } 477 478 /** 479 * Perform a HTTP HEAD or GET request. 480 * 481 * If $file_path is a writable filename, this will do a GET request and write 482 * the file to that path. 483 * 484 * @since 2.5.0 485 * 486 * @param string $url URL to fetch. 487 * @param string|bool $file_path Optional. File path to write request to. 488 * @param int $red (private) The number of Redirects followed, Upon 5 being hit, returns false. 489 * @return bool|string False on failure and string of headers if HEAD request. 490 */ 491 function wp_get_http( $url, $file_path = false, $red = 1 ) { 492 @set_time_limit( 60 ); 493 494 if ( $red > 5 ) 495 return false; 496 497 $options = array(); 498 $options['redirection'] = 5; 499 500 if ( false == $file_path ) 501 $options['method'] = 'HEAD'; 502 else 503 $options['method'] = 'GET'; 504 505 $response = wp_remote_request($url, $options); 506 507 if ( is_wp_error( $response ) ) 508 return false; 509 510 $headers = wp_remote_retrieve_headers( $response ); 511 $headers['response'] = wp_remote_retrieve_response_code( $response ); 512 513 // WP_HTTP no longer follows redirects for HEAD requests. 514 if ( 'HEAD' == $options['method'] && in_array($headers['response'], array(301, 302)) && isset( $headers['location'] ) ) { 515 return wp_get_http( $headers['location'], $file_path, ++$red ); 516 } 517 518 if ( false == $file_path ) 519 return $headers; 520 521 // GET request - write it to the supplied filename 522 $out_fp = fopen($file_path, 'w'); 523 if ( !$out_fp ) 524 return $headers; 525 526 fwrite( $out_fp, wp_remote_retrieve_body( $response ) ); 527 fclose($out_fp); 528 clearstatcache(); 529 530 return $headers; 531 } 532 533 /** 534 * Retrieve HTTP Headers from URL. 535 * 536 * @since 1.5.1 537 * 538 * @param string $url 539 * @param bool $deprecated Not Used. 540 * @return bool|string False on failure, headers on success. 541 */ 542 function wp_get_http_headers( $url, $deprecated = false ) { 543 if ( !empty( $deprecated ) ) 544 _deprecated_argument( __FUNCTION__, '2.7' ); 545 546 $response = wp_remote_head( $url ); 547 548 if ( is_wp_error( $response ) ) 549 return false; 550 551 return wp_remote_retrieve_headers( $response ); 552 } 553 554 /** 555 * Whether today is a new day. 556 * 557 * @since 0.71 558 * @uses $day Today 559 * @uses $previousday Previous day 560 * 561 * @return int 1 when new day, 0 if not a new day. 562 */ 563 function is_new_day() { 564 global $currentday, $previousday; 565 if ( $currentday != $previousday ) 566 return 1; 567 else 568 return 0; 569 } 570 571 /** 572 * Build URL query based on an associative and, or indexed array. 573 * 574 * This is a convenient function for easily building url queries. It sets the 575 * separator to '&' and uses _http_build_query() function. 576 * 577 * @see _http_build_query() Used to build the query 578 * @link http://us2.php.net/manual/en/function.http-build-query.php more on what 579 * http_build_query() does. 580 * 581 * @since 2.3.0 582 * 583 * @param array $data URL-encode key/value pairs. 584 * @return string URL encoded string 585 */ 586 function build_query( $data ) { 587 return _http_build_query( $data, null, '&', '', false ); 588 } 589 590 // from php.net (modified by Mark Jaquith to behave like the native PHP5 function) 591 function _http_build_query($data, $prefix=null, $sep=null, $key='', $urlencode=true) { 592 $ret = array(); 593 594 foreach ( (array) $data as $k => $v ) { 595 if ( $urlencode) 596 $k = urlencode($k); 597 if ( is_int($k) && $prefix != null ) 598 $k = $prefix.$k; 599 if ( !empty($key) ) 600 $k = $key . '%5B' . $k . '%5D'; 601 if ( $v === null ) 602 continue; 603 elseif ( $v === FALSE ) 604 $v = '0'; 605 606 if ( is_array($v) || is_object($v) ) 607 array_push($ret,_http_build_query($v, '', $sep, $k, $urlencode)); 608 elseif ( $urlencode ) 609 array_push($ret, $k.'='.urlencode($v)); 610 else 611 array_push($ret, $k.'='.$v); 612 } 613 614 if ( null === $sep ) 615 $sep = ini_get('arg_separator.output'); 616 617 return implode($sep, $ret); 618 } 619 620 /** 621 * Retrieve a modified URL query string. 622 * 623 * You can rebuild the URL and append a new query variable to the URL query by 624 * using this function. You can also retrieve the full URL with query data. 625 * 626 * Adding a single key & value or an associative array. Setting a key value to 627 * an empty string removes the key. Omitting oldquery_or_uri uses the $_SERVER 628 * value. Additional values provided are expected to be encoded appropriately 629 * with urlencode() or rawurlencode(). 630 * 631 * @since 1.5.0 632 * 633 * @param mixed $param1 Either newkey or an associative_array 634 * @param mixed $param2 Either newvalue or oldquery or uri 635 * @param mixed $param3 Optional. Old query or uri 636 * @return string New URL query string. 637 */ 638 function add_query_arg() { 639 $ret = ''; 640 if ( is_array( func_get_arg(0) ) ) { 641 if ( @func_num_args() < 2 || false === @func_get_arg( 1 ) ) 642 $uri = $_SERVER['REQUEST_URI']; 643 else 644 $uri = @func_get_arg( 1 ); 645 } else { 646 if ( @func_num_args() < 3 || false === @func_get_arg( 2 ) ) 647 $uri = $_SERVER['REQUEST_URI']; 648 else 649 $uri = @func_get_arg( 2 ); 650 } 651 652 if ( $frag = strstr( $uri, '#' ) ) 653 $uri = substr( $uri, 0, -strlen( $frag ) ); 654 else 655 $frag = ''; 656 657 if ( preg_match( '|^https?://|i', $uri, $matches ) ) { 658 $protocol = $matches[0]; 659 $uri = substr( $uri, strlen( $protocol ) ); 660 } else { 661 $protocol = ''; 662 } 663 664 if ( strpos( $uri, '?' ) !== false ) { 665 $parts = explode( '?', $uri, 2 ); 666 if ( 1 == count( $parts ) ) { 667 $base = '?'; 668 $query = $parts[0]; 669 } else { 670 $base = $parts[0] . '?'; 671 $query = $parts[1]; 672 } 673 } elseif ( !empty( $protocol ) || strpos( $uri, '=' ) === false ) { 674 $base = $uri . '?'; 675 $query = ''; 676 } else { 677 $base = ''; 678 $query = $uri; 679 } 680 681 wp_parse_str( $query, $qs ); 682 $qs = urlencode_deep( $qs ); // this re-URL-encodes things that were already in the query string 683 if ( is_array( func_get_arg( 0 ) ) ) { 684 $kayvees = func_get_arg( 0 ); 685 $qs = array_merge( $qs, $kayvees ); 686 } else { 687 $qs[func_get_arg( 0 )] = func_get_arg( 1 ); 688 } 689 690 foreach ( (array) $qs as $k => $v ) { 691 if ( $v === false ) 692 unset( $qs[$k] ); 693 } 694 695 $ret = build_query( $qs ); 696 $ret = trim( $ret, '?' ); 697 $ret = preg_replace( '#=(&|$)#', '$1', $ret ); 698 $ret = $protocol . $base . $ret . $frag; 699 $ret = rtrim( $ret, '?' ); 700 return $ret; 701 } 702 703 /** 704 * Removes an item or list from the query string. 705 * 706 * @since 1.5.0 707 * 708 * @param string|array $key Query key or keys to remove. 709 * @param bool $query When false uses the $_SERVER value. 710 * @return string New URL query string. 711 */ 712 function remove_query_arg( $key, $query=false ) { 713 if ( is_array( $key ) ) { // removing multiple keys 714 foreach ( $key as $k ) 715 $query = add_query_arg( $k, false, $query ); 716 return $query; 717 } 718 return add_query_arg( $key, false, $query ); 719 } 720 721 /** 722 * Walks the array while sanitizing the contents. 723 * 724 * @since 0.71 725 * 726 * @param array $array Array to used to walk while sanitizing contents. 727 * @return array Sanitized $array. 728 */ 729 function add_magic_quotes( $array ) { 730 foreach ( (array) $array as $k => $v ) { 731 if ( is_array( $v ) ) { 732 $array[$k] = add_magic_quotes( $v ); 733 } else { 734 $array[$k] = addslashes( $v ); 735 } 736 } 737 return $array; 738 } 739 740 /** 741 * HTTP request for URI to retrieve content. 742 * 743 * @since 1.5.1 744 * @uses wp_remote_get() 745 * 746 * @param string $uri URI/URL of web page to retrieve. 747 * @return bool|string HTTP content. False on failure. 748 */ 749 function wp_remote_fopen( $uri ) { 750 $parsed_url = @parse_url( $uri ); 751 752 if ( !$parsed_url || !is_array( $parsed_url ) ) 753 return false; 754 755 $options = array(); 756 $options['timeout'] = 10; 757 758 $response = wp_remote_get( $uri, $options ); 759 760 if ( is_wp_error( $response ) ) 761 return false; 762 763 return wp_remote_retrieve_body( $response ); 764 } 765 766 /** 767 * Set up the WordPress query. 768 * 769 * @since 2.0.0 770 * 771 * @param string $query_vars Default WP_Query arguments. 772 */ 773 function wp( $query_vars = '' ) { 774 global $wp, $wp_query, $wp_the_query; 775 $wp->main( $query_vars ); 776 777 if ( !isset($wp_the_query) ) 778 $wp_the_query = $wp_query; 779 } 780 781 /** 782 * Retrieve the description for the HTTP status. 783 * 784 * @since 2.3.0 785 * 786 * @param int $code HTTP status code. 787 * @return string Empty string if not found, or description if found. 788 */ 789 function get_status_header_desc( $code ) { 790 global $wp_header_to_desc; 791 792 $code = absint( $code ); 793 794 if ( !isset( $wp_header_to_desc ) ) { 795 $wp_header_to_desc = array( 796 100 => 'Continue', 797 101 => 'Switching Protocols', 798 102 => 'Processing', 799 800 200 => 'OK', 801 201 => 'Created', 802 202 => 'Accepted', 803 203 => 'Non-Authoritative Information', 804 204 => 'No Content', 805 205 => 'Reset Content', 806 206 => 'Partial Content', 807 207 => 'Multi-Status', 808 226 => 'IM Used', 809 810 300 => 'Multiple Choices', 811 301 => 'Moved Permanently', 812 302 => 'Found', 813 303 => 'See Other', 814 304 => 'Not Modified', 815 305 => 'Use Proxy', 816 306 => 'Reserved', 817 307 => 'Temporary Redirect', 818 819 400 => 'Bad Request', 820 401 => 'Unauthorized', 821 402 => 'Payment Required', 822 403 => 'Forbidden', 823 404 => 'Not Found', 824 405 => 'Method Not Allowed', 825 406 => 'Not Acceptable', 826 407 => 'Proxy Authentication Required', 827 408 => 'Request Timeout', 828 409 => 'Conflict', 829 410 => 'Gone', 830 411 => 'Length Required', 831 412 => 'Precondition Failed', 832 413 => 'Request Entity Too Large', 833 414 => 'Request-URI Too Long', 834 415 => 'Unsupported Media Type', 835 416 => 'Requested Range Not Satisfiable', 836 417 => 'Expectation Failed', 837 422 => 'Unprocessable Entity', 838 423 => 'Locked', 839 424 => 'Failed Dependency', 840 426 => 'Upgrade Required', 841 842 500 => 'Internal Server Error', 843 501 => 'Not Implemented', 844 502 => 'Bad Gateway', 845 503 => 'Service Unavailable', 846 504 => 'Gateway Timeout', 847 505 => 'HTTP Version Not Supported', 848 506 => 'Variant Also Negotiates', 849 507 => 'Insufficient Storage', 850 510 => 'Not Extended' 851 ); 852 } 853 854 if ( isset( $wp_header_to_desc[$code] ) ) 855 return $wp_header_to_desc[$code]; 856 else 857 return ''; 858 } 859 860 /** 861 * Set HTTP status header. 862 * 863 * @since 2.0.0 864 * @uses apply_filters() Calls 'status_header' on status header string, HTTP 865 * HTTP code, HTTP code description, and protocol string as separate 866 * parameters. 867 * 868 * @param int $header HTTP status code 869 * @return unknown 870 */ 871 function status_header( $header ) { 872 $text = get_status_header_desc( $header ); 873 874 if ( empty( $text ) ) 875 return false; 876 877 $protocol = $_SERVER["SERVER_PROTOCOL"]; 878 if ( 'HTTP/1.1' != $protocol && 'HTTP/1.0' != $protocol ) 879 $protocol = 'HTTP/1.0'; 880 $status_header = "$protocol $header $text"; 881 if ( function_exists( 'apply_filters' ) ) 882 $status_header = apply_filters( 'status_header', $status_header, $header, $text, $protocol ); 883 884 return @header( $status_header, true, $header ); 885 } 886 887 /** 888 * Gets the header information to prevent caching. 889 * 890 * The several different headers cover the different ways cache prevention is handled 891 * by different browsers 892 * 893 * @since 2.8.0 894 * 895 * @uses apply_filters() 896 * @return array The associative array of header names and field values. 897 */ 898 function wp_get_nocache_headers() { 899 $headers = array( 900 'Expires' => 'Wed, 11 Jan 1984 05:00:00 GMT', 901 'Last-Modified' => gmdate( 'D, d M Y H:i:s' ) . ' GMT', 902 'Cache-Control' => 'no-cache, must-revalidate, max-age=0', 903 'Pragma' => 'no-cache', 904 ); 905 906 if ( function_exists('apply_filters') ) { 907 $headers = (array) apply_filters('nocache_headers', $headers); 908 } 909 return $headers; 910 } 911 912 /** 913 * Sets the headers to prevent caching for the different browsers. 914 * 915 * Different browsers support different nocache headers, so several headers must 916 * be sent so that all of them get the point that no caching should occur. 917 * 918 * @since 2.0.0 919 * @uses wp_get_nocache_headers() 920 */ 921 function nocache_headers() { 922 $headers = wp_get_nocache_headers(); 923 foreach( $headers as $name => $field_value ) 924 @header("{$name}: {$field_value}"); 925 } 926 927 /** 928 * Set the headers for caching for 10 days with JavaScript content type. 929 * 930 * @since 2.1.0 931 */ 932 function cache_javascript_headers() { 933 $expiresOffset = 864000; // 10 days 934 header( "Content-Type: text/javascript; charset=" . get_bloginfo( 'charset' ) ); 935 header( "Vary: Accept-Encoding" ); // Handle proxies 936 header( "Expires: " . gmdate( "D, d M Y H:i:s", time() + $expiresOffset ) . " GMT" ); 937 } 938 939 /** 940 * Retrieve the number of database queries during the WordPress execution. 941 * 942 * @since 2.0.0 943 * 944 * @return int Number of database queries 945 */ 946 function get_num_queries() { 947 global $wpdb; 948 return $wpdb->num_queries; 949 } 950 951 /** 952 * Whether input is yes or no. Must be 'y' to be true. 953 * 954 * @since 1.0.0 955 * 956 * @param string $yn Character string containing either 'y' or 'n' 957 * @return bool True if yes, false on anything else 958 */ 959 function bool_from_yn( $yn ) { 960 return ( strtolower( $yn ) == 'y' ); 961 } 962 963 /** 964 * Loads the feed template from the use of an action hook. 965 * 966 * If the feed action does not have a hook, then the function will die with a 967 * message telling the visitor that the feed is not valid. 968 * 969 * It is better to only have one hook for each feed. 970 * 971 * @since 2.1.0 972 * @uses $wp_query Used to tell if the use a comment feed. 973 * @uses do_action() Calls 'do_feed_$feed' hook, if a hook exists for the feed. 974 */ 975 function do_feed() { 976 global $wp_query; 977 978 $feed = get_query_var( 'feed' ); 979 980 // Remove the pad, if present. 981 $feed = preg_replace( '/^_+/', '', $feed ); 982 983 if ( $feed == '' || $feed == 'feed' ) 984 $feed = get_default_feed(); 985 986 $hook = 'do_feed_' . $feed; 987 if ( !has_action($hook) ) { 988 $message = sprintf( __( 'ERROR: %s is not a valid feed template.' ), esc_html($feed)); 989 wp_die( $message, '', array( 'response' => 404 ) ); 990 } 991 992 do_action( $hook, $wp_query->is_comment_feed ); 993 } 994 995 /** 996 * Load the RDF RSS 0.91 Feed template. 997 * 998 * @since 2.1.0 999 */ 1000 function do_feed_rdf() { 1001 load_template( ABSPATH . WPINC . '/feed-rdf.php' ); 1002 } 1003 1004 /** 1005 * Load the RSS 1.0 Feed Template. 1006 * 1007 * @since 2.1.0 1008 */ 1009 function do_feed_rss() { 1010 load_template( ABSPATH . WPINC . '/feed-rss.php' ); 1011 } 1012 1013 /** 1014 * Load either the RSS2 comment feed or the RSS2 posts feed. 1015 * 1016 * @since 2.1.0 1017 * 1018 * @param bool $for_comments True for the comment feed, false for normal feed. 1019 */ 1020 function do_feed_rss2( $for_comments ) { 1021 if ( $for_comments ) 1022 load_template( ABSPATH . WPINC . '/feed-rss2-comments.php' ); 1023 else 1024 load_template( ABSPATH . WPINC . '/feed-rss2.php' ); 1025 } 1026 1027 /** 1028 * Load either Atom comment feed or Atom posts feed. 1029 * 1030 * @since 2.1.0 1031 * 1032 * @param bool $for_comments True for the comment feed, false for normal feed. 1033 */ 1034 function do_feed_atom( $for_comments ) { 1035 if ($for_comments) 1036 load_template( ABSPATH . WPINC . '/feed-atom-comments.php'); 1037 else 1038 load_template( ABSPATH . WPINC . '/feed-atom.php' ); 1039 } 1040 1041 /** 1042 * Display the robots.txt file content. 1043 * 1044 * The echo content should be with usage of the permalinks or for creating the 1045 * robots.txt file. 1046 * 1047 * @since 2.1.0 1048 * @uses do_action() Calls 'do_robotstxt' hook for displaying robots.txt rules. 1049 */ 1050 function do_robots() { 1051 header( 'Content-Type: text/plain; charset=utf-8' ); 1052 1053 do_action( 'do_robotstxt' ); 1054 1055 $output = "User-agent: *\n"; 1056 $public = get_option( 'blog_public' ); 1057 if ( '0' == $public ) { 1058 $output .= "Disallow: /\n"; 1059 } else { 1060 $site_url = parse_url( site_url() ); 1061 $path = ( !empty( $site_url['path'] ) ) ? $site_url['path'] : ''; 1062 $output .= "Disallow: $path/wp-admin/\n"; 1063 $output .= "Disallow: $path/wp-includes/\n"; 1064 } 1065 1066 echo apply_filters('robots_txt', $output, $public); 1067 } 1068 1069 /** 1070 * Test whether blog is already installed. 1071 * 1072 * The cache will be checked first. If you have a cache plugin, which saves the 1073 * cache values, then this will work. If you use the default WordPress cache, 1074 * and the database goes away, then you might have problems. 1075 * 1076 * Checks for the option siteurl for whether WordPress is installed. 1077 * 1078 * @since 2.1.0 1079 * @uses $wpdb 1080 * 1081 * @return bool Whether blog is already installed. 1082 */ 1083 function is_blog_installed() { 1084 global $wpdb; 1085 1086 // Check cache first. If options table goes away and we have true cached, oh well. 1087 if ( wp_cache_get( 'is_blog_installed' ) ) 1088 return true; 1089 1090 $suppress = $wpdb->suppress_errors(); 1091 if ( ! defined( 'WP_INSTALLING' ) ) { 1092 $alloptions = wp_load_alloptions(); 1093 } 1094 // If siteurl is not set to autoload, check it specifically 1095 if ( !isset( $alloptions['siteurl'] ) ) 1096 $installed = $wpdb->get_var( "SELECT option_value FROM $wpdb->options WHERE option_name = 'siteurl'" ); 1097 else 1098 $installed = $alloptions['siteurl']; 1099 $wpdb->suppress_errors( $suppress ); 1100 1101 $installed = !empty( $installed ); 1102 wp_cache_set( 'is_blog_installed', $installed ); 1103 1104 if ( $installed ) 1105 return true; 1106 1107 // If visiting repair.php, return true and let it take over. 1108 if ( defined( 'WP_REPAIRING' ) ) 1109 return true; 1110 1111 $suppress = $wpdb->suppress_errors(); 1112 1113 // Loop over the WP tables. If none exist, then scratch install is allowed. 1114 // If one or more exist, suggest table repair since we got here because the options 1115 // table could not be accessed. 1116 $wp_tables = $wpdb->tables(); 1117 foreach ( $wp_tables as $table ) { 1118 // The existence of custom user tables shouldn't suggest an insane state or prevent a clean install. 1119 if ( defined( 'CUSTOM_USER_TABLE' ) && CUSTOM_USER_TABLE == $table ) 1120 continue; 1121 if ( defined( 'CUSTOM_USER_META_TABLE' ) && CUSTOM_USER_META_TABLE == $table ) 1122 continue; 1123 1124 if ( ! $wpdb->get_results( "DESCRIBE $table;" ) ) 1125 continue; 1126 1127 // One or more tables exist. We are insane. 1128 1129 wp_load_translations_early(); 1130 1131 // Die with a DB error. 1132 $wpdb->error = sprintf( __( 'One or more database tables are unavailable. The database may need to be <a href="%s">repaired</a>.' ), 'maint/repair.php?referrer=is_blog_installed' ); 1133 dead_db(); 1134 } 1135 1136 $wpdb->suppress_errors( $suppress ); 1137 1138 wp_cache_set( 'is_blog_installed', false ); 1139 1140 return false; 1141 } 1142 1143 /** 1144 * Retrieve URL with nonce added to URL query. 1145 * 1146 * @package WordPress 1147 * @subpackage Security 1148 * @since 2.0.4 1149 * 1150 * @param string $actionurl URL to add nonce action 1151 * @param string $action Optional. Nonce action name 1152 * @return string URL with nonce action added. 1153 */ 1154 function wp_nonce_url( $actionurl, $action = -1 ) { 1155 $actionurl = str_replace( '&', '&', $actionurl ); 1156 return esc_html( add_query_arg( '_wpnonce', wp_create_nonce( $action ), $actionurl ) ); 1157 } 1158 1159 /** 1160 * Retrieve or display nonce hidden field for forms. 1161 * 1162 * The nonce field is used to validate that the contents of the form came from 1163 * the location on the current site and not somewhere else. The nonce does not 1164 * offer absolute protection, but should protect against most cases. It is very 1165 * important to use nonce field in forms. 1166 * 1167 * The $action and $name are optional, but if you want to have better security, 1168 * it is strongly suggested to set those two parameters. It is easier to just 1169 * call the function without any parameters, because validation of the nonce 1170 * doesn't require any parameters, but since crackers know what the default is 1171 * it won't be difficult for them to find a way around your nonce and cause 1172 * damage. 1173 * 1174 * The input name will be whatever $name value you gave. The input value will be 1175 * the nonce creation value. 1176 * 1177 * @package WordPress 1178 * @subpackage Security 1179 * @since 2.0.4 1180 * 1181 * @param string $action Optional. Action name. 1182 * @param string $name Optional. Nonce name. 1183 * @param bool $referer Optional, default true. Whether to set the referer field for validation. 1184 * @param bool $echo Optional, default true. Whether to display or return hidden form field. 1185 * @return string Nonce field. 1186 */ 1187 function wp_nonce_field( $action = -1, $name = "_wpnonce", $referer = true , $echo = true ) { 1188 $name = esc_attr( $name ); 1189 $nonce_field = '<input type="hidden" id="' . $name . '" name="' . $name . '" value="' . wp_create_nonce( $action ) . '" />'; 1190 1191 if ( $referer ) 1192 $nonce_field .= wp_referer_field( false ); 1193 1194 if ( $echo ) 1195 echo $nonce_field; 1196 1197 return $nonce_field; 1198 } 1199 1200 /** 1201 * Retrieve or display referer hidden field for forms. 1202 * 1203 * The referer link is the current Request URI from the server super global. The 1204 * input name is '_wp_http_referer', in case you wanted to check manually. 1205 * 1206 * @package WordPress 1207 * @subpackage Security 1208 * @since 2.0.4 1209 * 1210 * @param bool $echo Whether to echo or return the referer field. 1211 * @return string Referer field. 1212 */ 1213 function wp_referer_field( $echo = true ) { 1214 $ref = esc_attr( $_SERVER['REQUEST_URI'] ); 1215 $referer_field = '<input type="hidden" name="_wp_http_referer" value="'. $ref . '" />'; 1216 1217 if ( $echo ) 1218 echo $referer_field; 1219 return $referer_field; 1220 } 1221 1222 /** 1223 * Retrieve or display original referer hidden field for forms. 1224 * 1225 * The input name is '_wp_original_http_referer' and will be either the same 1226 * value of {@link wp_referer_field()}, if that was posted already or it will 1227 * be the current page, if it doesn't exist. 1228 * 1229 * @package WordPress 1230 * @subpackage Security 1231 * @since 2.0.4 1232 * 1233 * @param bool $echo Whether to echo the original http referer 1234 * @param string $jump_back_to Optional, default is 'current'. Can be 'previous' or page you want to jump back to. 1235 * @return string Original referer field. 1236 */ 1237 function wp_original_referer_field( $echo = true, $jump_back_to = 'current' ) { 1238 $jump_back_to = ( 'previous' == $jump_back_to ) ? wp_get_referer() : $_SERVER['REQUEST_URI']; 1239 $ref = ( wp_get_original_referer() ) ? wp_get_original_referer() : $jump_back_to; 1240 $orig_referer_field = '<input type="hidden" name="_wp_original_http_referer" value="' . esc_attr( stripslashes( $ref ) ) . '" />'; 1241 if ( $echo ) 1242 echo $orig_referer_field; 1243 return $orig_referer_field; 1244 } 1245 1246 /** 1247 * Retrieve referer from '_wp_http_referer' or HTTP referer. If it's the same 1248 * as the current request URL, will return false. 1249 * 1250 * @package WordPress 1251 * @subpackage Security 1252 * @since 2.0.4 1253 * 1254 * @return string|bool False on failure. Referer URL on success. 1255 */ 1256 function wp_get_referer() { 1257 $ref = false; 1258 if ( ! empty( $_REQUEST['_wp_http_referer'] ) ) 1259 $ref = $_REQUEST['_wp_http_referer']; 1260 else if ( ! empty( $_SERVER['HTTP_REFERER'] ) ) 1261 $ref = $_SERVER['HTTP_REFERER']; 1262 1263 if ( $ref && $ref !== $_SERVER['REQUEST_URI'] ) 1264 return $ref; 1265 return false; 1266 } 1267 1268 /** 1269 * Retrieve original referer that was posted, if it exists. 1270 * 1271 * @package WordPress 1272 * @subpackage Security 1273 * @since 2.0.4 1274 * 1275 * @return string|bool False if no original referer or original referer if set. 1276 */ 1277 function wp_get_original_referer() { 1278 if ( !empty( $_REQUEST['_wp_original_http_referer'] ) ) 1279 return $_REQUEST['_wp_original_http_referer']; 1280 return false; 1281 } 1282 1283 /** 1284 * Recursive directory creation based on full path. 1285 * 1286 * Will attempt to set permissions on folders. 1287 * 1288 * @since 2.0.1 1289 * 1290 * @param string $target Full path to attempt to create. 1291 * @return bool Whether the path was created. True if path already exists. 1292 */ 1293 function wp_mkdir_p( $target ) { 1294 // from php.net/mkdir user contributed notes 1295 $target = str_replace( '//', '/', $target ); 1296 1297 // safe mode fails with a trailing slash under certain PHP versions. 1298 $target = rtrim($target, '/'); // Use rtrim() instead of untrailingslashit to avoid formatting.php dependency. 1299 if ( empty($target) ) 1300 $target = '/'; 1301 1302 if ( file_exists( $target ) ) 1303 return @is_dir( $target ); 1304 1305 // Attempting to create the directory may clutter up our display. 1306 if ( @mkdir( $target ) ) { 1307 $stat = @stat( dirname( $target ) ); 1308 $dir_perms = $stat['mode'] & 0007777; // Get the permission bits. 1309 @chmod( $target, $dir_perms ); 1310 return true; 1311 } elseif ( is_dir( dirname( $target ) ) ) { 1312 return false; 1313 } 1314 1315 // If the above failed, attempt to create the parent node, then try again. 1316 if ( ( $target != '/' ) && ( wp_mkdir_p( dirname( $target ) ) ) ) 1317 return wp_mkdir_p( $target ); 1318 1319 return false; 1320 } 1321 1322 /** 1323 * Test if a give filesystem path is absolute ('/foo/bar', 'c:\windows'). 1324 * 1325 * @since 2.5.0 1326 * 1327 * @param string $path File path 1328 * @return bool True if path is absolute, false is not absolute. 1329 */ 1330 function path_is_absolute( $path ) { 1331 // this is definitive if true but fails if $path does not exist or contains a symbolic link 1332 if ( realpath($path) == $path ) 1333 return true; 1334 1335 if ( strlen($path) == 0 || $path[0] == '.' ) 1336 return false; 1337 1338 // windows allows absolute paths like this 1339 if ( preg_match('#^[a-zA-Z]:\\\\#', $path) ) 1340 return true; 1341 1342 // a path starting with / or \ is absolute; anything else is relative 1343 return ( $path[0] == '/' || $path[0] == '\\' ); 1344 } 1345 1346 /** 1347 * Join two filesystem paths together (e.g. 'give me $path relative to $base'). 1348 * 1349 * If the $path is absolute, then it the full path is returned. 1350 * 1351 * @since 2.5.0 1352 * 1353 * @param string $base 1354 * @param string $path 1355 * @return string The path with the base or absolute path. 1356 */ 1357 function path_join( $base, $path ) { 1358 if ( path_is_absolute($path) ) 1359 return $path; 1360 1361 return rtrim($base, '/') . '/' . ltrim($path, '/'); 1362 } 1363 1364 /** 1365 * Determines a writable directory for temporary files. 1366 * Function's preference is to WP_CONTENT_DIR followed by the return value of <code>sys_get_temp_dir()</code>, before finally defaulting to /tmp/ 1367 * 1368 * In the event that this function does not find a writable location, It may be overridden by the <code>WP_TEMP_DIR</code> constant in your <code>wp-config.php</code> file. 1369 * 1370 * @since 2.5.0 1371 * 1372 * @return string Writable temporary directory 1373 */ 1374 function get_temp_dir() { 1375 static $temp; 1376 if ( defined('WP_TEMP_DIR') ) 1377 return trailingslashit(WP_TEMP_DIR); 1378 1379 if ( $temp ) 1380 return trailingslashit($temp); 1381 1382 $temp = WP_CONTENT_DIR . '/'; 1383 if ( is_dir($temp) && @is_writable($temp) ) 1384 return $temp; 1385 1386 if ( function_exists('sys_get_temp_dir') ) { 1387 $temp = sys_get_temp_dir(); 1388 if ( @is_writable($temp) ) 1389 return trailingslashit($temp); 1390 } 1391 1392 $temp = ini_get('upload_tmp_dir'); 1393 if ( is_dir($temp) && @is_writable($temp) ) 1394 return trailingslashit($temp); 1395 1396 $temp = '/tmp/'; 1397 return $temp; 1398 } 1399 1400 /** 1401 * Get an array containing the current upload directory's path and url. 1402 * 1403 * Checks the 'upload_path' option, which should be from the web root folder, 1404 * and if it isn't empty it will be used. If it is empty, then the path will be 1405 * 'WP_CONTENT_DIR/uploads'. If the 'UPLOADS' constant is defined, then it will 1406 * override the 'upload_path' option and 'WP_CONTENT_DIR/uploads' path. 1407 * 1408 * The upload URL path is set either by the 'upload_url_path' option or by using 1409 * the 'WP_CONTENT_URL' constant and appending '/uploads' to the path. 1410 * 1411 * If the 'uploads_use_yearmonth_folders' is set to true (checkbox if checked in 1412 * the administration settings panel), then the time will be used. The format 1413 * will be year first and then month. 1414 * 1415 * If the path couldn't be created, then an error will be returned with the key 1416 * 'error' containing the error message. The error suggests that the parent 1417 * directory is not writable by the server. 1418 * 1419 * On success, the returned array will have many indices: 1420 * 'path' - base directory and sub directory or full path to upload directory. 1421 * 'url' - base url and sub directory or absolute URL to upload directory. 1422 * 'subdir' - sub directory if uploads use year/month folders option is on. 1423 * 'basedir' - path without subdir. 1424 * 'baseurl' - URL path without subdir. 1425 * 'error' - set to false. 1426 * 1427 * @since 2.0.0 1428 * @uses apply_filters() Calls 'upload_dir' on returned array. 1429 * 1430 * @param string $time Optional. Time formatted in 'yyyy/mm'. 1431 * @return array See above for description. 1432 */ 1433 function wp_upload_dir( $time = null ) { 1434 global $switched; 1435 $siteurl = get_option( 'siteurl' ); 1436 $upload_path = get_option( 'upload_path' ); 1437 $upload_path = trim($upload_path); 1438 $main_override = is_multisite() && defined( 'MULTISITE' ) && is_main_site(); 1439 if ( empty($upload_path) ) { 1440 $dir = WP_CONTENT_DIR . '/uploads'; 1441 } else { 1442 $dir = $upload_path; 1443 if ( 'wp-content/uploads' == $upload_path ) { 1444 $dir = WP_CONTENT_DIR . '/uploads'; 1445 } elseif ( 0 !== strpos($dir, ABSPATH) ) { 1446 // $dir is absolute, $upload_path is (maybe) relative to ABSPATH 1447 $dir = path_join( ABSPATH, $dir ); 1448 } 1449 } 1450 1451 if ( !$url = get_option( 'upload_url_path' ) ) { 1452 if ( empty($upload_path) || ( 'wp-content/uploads' == $upload_path ) || ( $upload_path == $dir ) ) 1453 $url = WP_CONTENT_URL . '/uploads'; 1454 else 1455 $url = trailingslashit( $siteurl ) . $upload_path; 1456 } 1457 1458 if ( defined('UPLOADS') && !$main_override && ( !isset( $switched ) || $switched === false ) ) { 1459 $dir = ABSPATH . UPLOADS; 1460 $url = trailingslashit( $siteurl ) . UPLOADS; 1461 } 1462 1463 if ( is_multisite() && !$main_override && ( !isset( $switched ) || $switched === false ) ) { 1464 if ( defined( 'BLOGUPLOADDIR' ) ) 1465 $dir = untrailingslashit(BLOGUPLOADDIR); 1466 $url = str_replace( UPLOADS, 'files', $url ); 1467 } 1468 1469 $bdir = $dir; 1470 $burl = $url; 1471 1472 $subdir = ''; 1473 if ( get_option( 'uploads_use_yearmonth_folders' ) ) { 1474 // Generate the yearly and monthly dirs 1475 if ( !$time ) 1476 $time = current_time( 'mysql' ); 1477 $y = substr( $time, 0, 4 ); 1478 $m = substr( $time, 5, 2 ); 1479 $subdir = "/$y/$m"; 1480 } 1481 1482 $dir .= $subdir; 1483 $url .= $subdir; 1484 1485 $uploads = apply_filters( 'upload_dir', array( 'path' => $dir, 'url' => $url, 'subdir' => $subdir, 'basedir' => $bdir, 'baseurl' => $burl, 'error' => false ) ); 1486 1487 // Make sure we have an uploads dir 1488 if ( ! wp_mkdir_p( $uploads['path'] ) ) { 1489 $message = sprintf( __( 'Unable to create directory %s. Is its parent directory writable by the server?' ), $uploads['path'] ); 1490 return array( 'error' => $message ); 1491 } 1492 1493 return $uploads; 1494 } 1495 1496 /** 1497 * Get a filename that is sanitized and unique for the given directory. 1498 * 1499 * If the filename is not unique, then a number will be added to the filename 1500 * before the extension, and will continue adding numbers until the filename is 1501 * unique. 1502 * 1503 * The callback is passed three parameters, the first one is the directory, the 1504 * second is the filename, and the third is the extension. 1505 * 1506 * @since 2.5.0 1507 * 1508 * @param string $dir 1509 * @param string $filename 1510 * @param mixed $unique_filename_callback Callback. 1511 * @return string New filename, if given wasn't unique. 1512 */ 1513 function wp_unique_filename( $dir, $filename, $unique_filename_callback = null ) { 1514 // sanitize the file name before we begin processing 1515 $filename = sanitize_file_name($filename); 1516 1517 // separate the filename into a name and extension 1518 $info = pathinfo($filename); 1519 $ext = !empty($info['extension']) ? '.' . $info['extension'] : ''; 1520 $name = basename($filename, $ext); 1521 1522 // edge case: if file is named '.ext', treat as an empty name 1523 if ( $name === $ext ) 1524 $name = ''; 1525 1526 // Increment the file number until we have a unique file to save in $dir. Use callback if supplied. 1527 if ( $unique_filename_callback && is_callable( $unique_filename_callback ) ) { 1528 $filename = call_user_func( $unique_filename_callback, $dir, $name, $ext ); 1529 } else { 1530 $number = ''; 1531 1532 // change '.ext' to lower case 1533 if ( $ext && strtolower($ext) != $ext ) { 1534 $ext2 = strtolower($ext); 1535 $filename2 = preg_replace( '|' . preg_quote($ext) . '$|', $ext2, $filename ); 1536 1537 // check for both lower and upper case extension or image sub-sizes may be overwritten 1538 while ( file_exists($dir . "/$filename") || file_exists($dir . "/$filename2") ) { 1539 $new_number = $number + 1; 1540 $filename = str_replace( "$number$ext", "$new_number$ext", $filename ); 1541 $filename2 = str_replace( "$number$ext2", "$new_number$ext2", $filename2 ); 1542 $number = $new_number; 1543 } 1544 return $filename2; 1545 } 1546 1547 while ( file_exists( $dir . "/$filename" ) ) { 1548 if ( '' == "$number$ext" ) 1549 $filename = $filename . ++$number . $ext; 1550 else 1551 $filename = str_replace( "$number$ext", ++$number . $ext, $filename ); 1552 } 1553 } 1554 1555 return $filename; 1556 } 1557 1558 /** 1559 * Create a file in the upload folder with given content. 1560 * 1561 * If there is an error, then the key 'error' will exist with the error message. 1562 * If success, then the key 'file' will have the unique file path, the 'url' key 1563 * will have the link to the new file. and the 'error' key will be set to false. 1564 * 1565 * This function will not move an uploaded file to the upload folder. It will 1566 * create a new file with the content in $bits parameter. If you move the upload 1567 * file, read the content of the uploaded file, and then you can give the 1568 * filename and content to this function, which will add it to the upload 1569 * folder. 1570 * 1571 * The permissions will be set on the new file automatically by this function. 1572 * 1573 * @since 2.0.0 1574 * 1575 * @param string $name 1576 * @param null $deprecated Never used. Set to null. 1577 * @param mixed $bits File content 1578 * @param string $time Optional. Time formatted in 'yyyy/mm'. 1579 * @return array 1580 */ 1581 function wp_upload_bits( $name, $deprecated, $bits, $time = null ) { 1582 if ( !empty( $deprecated ) ) 1583 _deprecated_argument( __FUNCTION__, '2.0' ); 1584 1585 if ( empty( $name ) ) 1586 return array( 'error' => __( 'Empty filename' ) ); 1587 1588 $wp_filetype = wp_check_filetype( $name ); 1589 if ( !$wp_filetype['ext'] ) 1590 return array( 'error' => __( 'Invalid file type' ) ); 1591 1592 $upload = wp_upload_dir( $time ); 1593 1594 if ( $upload['error'] !== false ) 1595 return $upload; 1596 1597 $upload_bits_error = apply_filters( 'wp_upload_bits', array( 'name' => $name, 'bits' => $bits, 'time' => $time ) ); 1598 if ( !is_array( $upload_bits_error ) ) { 1599 $upload[ 'error' ] = $upload_bits_error; 1600 return $upload; 1601 } 1602 1603 $filename = wp_unique_filename( $upload['path'], $name ); 1604 1605 $new_file = $upload['path'] . "/$filename"; 1606 if ( ! wp_mkdir_p( dirname( $new_file ) ) ) { 1607 $message = sprintf( __( 'Unable to create directory %s. Is its parent directory writable by the server?' ), dirname( $new_file ) ); 1608 return array( 'error' => $message ); 1609 } 1610 1611 $ifp = @ fopen( $new_file, 'wb' ); 1612 if ( ! $ifp ) 1613 return array( 'error' => sprintf( __( 'Could not write file %s' ), $new_file ) ); 1614 1615 @fwrite( $ifp, $bits ); 1616 fclose( $ifp ); 1617 clearstatcache(); 1618 1619 // Set correct file permissions 1620 $stat = @ stat( dirname( $new_file ) ); 1621 $perms = $stat['mode'] & 0007777; 1622 $perms = $perms & 0000666; 1623 @ chmod( $new_file, $perms ); 1624 clearstatcache(); 1625 1626 // Compute the URL 1627 $url = $upload['url'] . "/$filename"; 1628 1629 return array( 'file' => $new_file, 'url' => $url, 'error' => false ); 1630 } 1631 1632 /** 1633 * Retrieve the file type based on the extension name. 1634 * 1635 * @package WordPress 1636 * @since 2.5.0 1637 * @uses apply_filters() Calls 'ext2type' hook on default supported types. 1638 * 1639 * @param string $ext The extension to search. 1640 * @return string|null The file type, example: audio, video, document, spreadsheet, etc. Null if not found. 1641 */ 1642 function wp_ext2type( $ext ) { 1643 $ext2type = apply_filters( 'ext2type', array( 1644 'audio' => array( 'aac', 'ac3', 'aif', 'aiff', 'm3a', 'm4a', 'm4b', 'mka', 'mp1', 'mp2', 'mp3', 'ogg', 'oga', 'ram', 'wav', 'wma' ), 1645 'video' => array( 'asf', 'avi', 'divx', 'dv', 'flv', 'm4v', 'mkv', 'mov', 'mp4', 'mpeg', 'mpg', 'mpv', 'ogm', 'ogv', 'qt', 'rm', 'vob', 'wmv' ), 1646 'document' => array( 'doc', 'docx', 'docm', 'dotm', 'odt', 'pages', 'pdf', 'rtf', 'wp', 'wpd' ), 1647 'spreadsheet' => array( 'numbers', 'ods', 'xls', 'xlsx', 'xlsb', 'xlsm' ), 1648 'interactive' => array( 'key', 'ppt', 'pptx', 'pptm', 'odp', 'swf' ), 1649 'text' => array( 'asc', 'csv', 'tsv', 'txt' ), 1650 'archive' => array( 'bz2', 'cab', 'dmg', 'gz', 'rar', 'sea', 'sit', 'sqx', 'tar', 'tgz', 'zip', '7z' ), 1651 'code' => array( 'css', 'htm', 'html', 'php', 'js' ), 1652 )); 1653 foreach ( $ext2type as $type => $exts ) 1654 if ( in_array( $ext, $exts ) ) 1655 return $type; 1656 } 1657 1658 /** 1659 * Retrieve the file type from the file name. 1660 * 1661 * You can optionally define the mime array, if needed. 1662 * 1663 * @since 2.0.4 1664 * 1665 * @param string $filename File name or path. 1666 * @param array $mimes Optional. Key is the file extension with value as the mime type. 1667 * @return array Values with extension first and mime type. 1668 */ 1669 function wp_check_filetype( $filename, $mimes = null ) { 1670 if ( empty($mimes) ) 1671 $mimes = get_allowed_mime_types(); 1672 $type = false; 1673 $ext = false; 1674 1675 foreach ( $mimes as $ext_preg => $mime_match ) { 1676 $ext_preg = '!\.(' . $ext_preg . ')$!i'; 1677 if ( preg_match( $ext_preg, $filename, $ext_matches ) ) { 1678 $type = $mime_match; 1679 $ext = $ext_matches[1]; 1680 break; 1681 } 1682 } 1683 1684 return compact( 'ext', 'type' ); 1685 } 1686 1687 /** 1688 * Attempt to determine the real file type of a file. 1689 * If unable to, the file name extension will be used to determine type. 1690 * 1691 * If it's determined that the extension does not match the file's real type, 1692 * then the "proper_filename" value will be set with a proper filename and extension. 1693 * 1694 * Currently this function only supports validating images known to getimagesize(). 1695 * 1696 * @since 3.0.0 1697 * 1698 * @param string $file Full path to the image. 1699 * @param string $filename The filename of the image (may differ from $file due to $file being in a tmp directory) 1700 * @param array $mimes Optional. Key is the file extension with value as the mime type. 1701 * @return array Values for the extension, MIME, and either a corrected filename or false if original $filename is valid 1702 */ 1703 function wp_check_filetype_and_ext( $file, $filename, $mimes = null ) { 1704 1705 $proper_filename = false; 1706 1707 // Do basic extension validation and MIME mapping 1708 $wp_filetype = wp_check_filetype( $filename, $mimes ); 1709 extract( $wp_filetype ); 1710 1711 // We can't do any further validation without a file to work with 1712 if ( ! file_exists( $file ) ) 1713 return compact( 'ext', 'type', 'proper_filename' ); 1714 1715 // We're able to validate images using GD 1716 if ( $type && 0 === strpos( $type, 'image/' ) && function_exists('getimagesize') ) { 1717 1718 // Attempt to figure out what type of image it actually is 1719 $imgstats = @getimagesize( $file ); 1720 1721 // If getimagesize() knows what kind of image it really is and if the real MIME doesn't match the claimed MIME 1722 if ( !empty($imgstats['mime']) && $imgstats['mime'] != $type ) { 1723 // This is a simplified array of MIMEs that getimagesize() can detect and their extensions 1724 // You shouldn't need to use this filter, but it's here just in case 1725 $mime_to_ext = apply_filters( 'getimagesize_mimes_to_exts', array( 1726 'image/jpeg' => 'jpg', 1727 'image/png' => 'png', 1728 'image/gif' => 'gif', 1729 'image/bmp' => 'bmp', 1730 'image/tiff' => 'tif', 1731 ) ); 1732 1733 // Replace whatever is after the last period in the filename with the correct extension 1734 if ( ! empty( $mime_to_ext[ $imgstats['mime'] ] ) ) { 1735 $filename_parts = explode( '.', $filename ); 1736 array_pop( $filename_parts ); 1737 $filename_parts[] = $mime_to_ext[ $imgstats['mime'] ]; 1738 $new_filename = implode( '.', $filename_parts ); 1739 1740 if ( $new_filename != $filename ) 1741 $proper_filename = $new_filename; // Mark that it changed 1742 1743 // Redefine the extension / MIME 1744 $wp_filetype = wp_check_filetype( $new_filename, $mimes ); 1745 extract( $wp_filetype ); 1746 } 1747 } 1748 } 1749 1750 // Let plugins try and validate other types of files 1751 // Should return an array in the style of array( 'ext' => $ext, 'type' => $type, 'proper_filename' => $proper_filename ) 1752 return apply_filters( 'wp_check_filetype_and_ext', compact( 'ext', 'type', 'proper_filename' ), $file, $filename, $mimes ); 1753 } 1754 1755 /** 1756 * Retrieve list of allowed mime types and file extensions. 1757 * 1758 * @since 2.8.6 1759 * 1760 * @return array Array of mime types keyed by the file extension regex corresponding to those types. 1761 */ 1762 function get_allowed_mime_types() { 1763 static $mimes = false; 1764 1765 if ( !$mimes ) { 1766 // Accepted MIME types are set here as PCRE unless provided. 1767 $mimes = apply_filters( 'upload_mimes', array( 1768 'jpg|jpeg|jpe' => 'image/jpeg', 1769 'gif' => 'image/gif', 1770 'png' => 'image/png', 1771 'bmp' => 'image/bmp', 1772 'tif|tiff' => 'image/tiff', 1773 'ico' => 'image/x-icon', 1774 'asf|asx|wax|wmv|wmx' => 'video/asf', 1775 'avi' => 'video/avi', 1776 'divx' => 'video/divx', 1777 'flv' => 'video/x-flv', 1778 'mov|qt' => 'video/quicktime', 1779 'mpeg|mpg|mpe' => 'video/mpeg', 1780 'txt|asc|c|cc|h' => 'text/plain', 1781 'csv' => 'text/csv', 1782 'tsv' => 'text/tab-separated-values', 1783 'ics' => 'text/calendar', 1784 'rtx' => 'text/richtext', 1785 'css' => 'text/css', 1786 'htm|html' => 'text/html', 1787 'mp3|m4a|m4b' => 'audio/mpeg', 1788 'mp4|m4v' => 'video/mp4', 1789 'ra|ram' => 'audio/x-realaudio', 1790 'wav' => 'audio/wav', 1791 'ogg|oga' => 'audio/ogg', 1792 'ogv' => 'video/ogg', 1793 'mid|midi' => 'audio/midi', 1794 'wma' => 'audio/wma', 1795 'mka' => 'audio/x-matroska', 1796 'mkv' => 'video/x-matroska', 1797 'rtf' => 'application/rtf', 1798 'js' => 'application/javascript', 1799 'pdf' => 'application/pdf', 1800 'doc|docx' => 'application/msword', 1801 'pot|pps|ppt|pptx|ppam|pptm|sldm|ppsm|potm' => 'application/vnd.ms-powerpoint', 1802 'wri' => 'application/vnd.ms-write', 1803 'xla|xls|xlsx|xlt|xlw|xlam|xlsb|xlsm|xltm' => 'application/vnd.ms-excel', 1804 'mdb' => 'application/vnd.ms-access', 1805 'mpp' => 'application/vnd.ms-project', 1806 'docm|dotm' => 'application/vnd.ms-word', 1807 'pptx|sldx|ppsx|potx' => 'application/vnd.openxmlformats-officedocument.presentationml', 1808 'xlsx|xltx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml', 1809 'docx|dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml', 1810 'onetoc|onetoc2|onetmp|onepkg' => 'application/onenote', 1811 'swf' => 'application/x-shockwave-flash', 1812 'class' => 'application/java', 1813 'tar' => 'application/x-tar', 1814 'zip' => 'application/zip', 1815 'gz|gzip' => 'application/x-gzip', 1816 'rar' => 'application/rar', 1817 '7z' => 'application/x-7z-compressed', 1818 'exe' => 'application/x-msdownload', 1819 // openoffice formats 1820 'odt' => 'application/vnd.oasis.opendocument.text', 1821 'odp' => 'application/vnd.oasis.opendocument.presentation', 1822 'ods' => 'application/vnd.oasis.opendocument.spreadsheet', 1823 'odg' => 'application/vnd.oasis.opendocument.graphics', 1824 'odc' => 'application/vnd.oasis.opendocument.chart', 1825 'odb' => 'application/vnd.oasis.opendocument.database', 1826 'odf' => 'application/vnd.oasis.opendocument.formula', 1827 // wordperfect formats 1828 'wp|wpd' => 'application/wordperfect', 1829 ) ); 1830 } 1831 1832 return $mimes; 1833 } 1834 1835 /** 1836 * Retrieve nonce action "Are you sure" message. 1837 * 1838 * The action is split by verb and noun. The action format is as follows: 1839 * verb-action_extra. The verb is before the first dash and has the format of 1840 * letters and no spaces and numbers. The noun is after the dash and before the 1841 * underscore, if an underscore exists. The noun is also only letters. 1842 * 1843 * The filter will be called for any action, which is not defined by WordPress. 1844 * You may use the filter for your plugin to explain nonce actions to the user, 1845 * when they get the "Are you sure?" message. The filter is in the format of 1846 * 'explain_nonce_$verb-$noun' with the $verb replaced by the found verb and the 1847 * $noun replaced by the found noun. The two parameters that are given to the 1848 * hook are the localized "Are you sure you want to do this?" message with the 1849 * extra text (the text after the underscore). 1850 * 1851 * @package WordPress 1852 * @subpackage Security 1853 * @since 2.0.4 1854 * 1855 * @param string $action Nonce action. 1856 * @return string Are you sure message. 1857 */ 1858 function wp_explain_nonce( $action ) { 1859 if ( $action !== -1 && preg_match( '/([a-z]+)-([a-z]+)(_(.+))?/', $action, $matches ) ) { 1860 $verb = $matches[1]; 1861 $noun = $matches[2]; 1862 1863 $trans = array(); 1864 $trans['update']['attachment'] = array( __( 'Your attempt to edit this attachment: “%s” has failed.' ), 'get_the_title' ); 1865 1866 $trans['add']['category'] = array( __( 'Your attempt to add this category has failed.' ), false ); 1867 $trans['delete']['category'] = array( __( 'Your attempt to delete this category: “%s” has failed.' ), 'get_cat_name' ); 1868 $trans['update']['category'] = array( __( 'Your attempt to edit this category: “%s” has failed.' ), 'get_cat_name' ); 1869 1870 $trans['delete']['comment'] = array( __( 'Your attempt to delete this comment: “%s” has failed.' ), 'use_id' ); 1871 $trans['unapprove']['comment'] = array( __( 'Your attempt to unapprove this comment: “%s” has failed.' ), 'use_id' ); 1872 $trans['approve']['comment'] = array( __( 'Your attempt to approve this comment: “%s” has failed.' ), 'use_id' ); 1873 $trans['update']['comment'] = array( __( 'Your attempt to edit this comment: “%s” has failed.' ), 'use_id' ); 1874 $trans['bulk']['comments'] = array( __( 'Your attempt to bulk modify comments has failed.' ), false ); 1875 $trans['moderate']['comments'] = array( __( 'Your attempt to moderate comments has failed.' ), false ); 1876 1877 $trans['add']['bookmark'] = array( __( 'Your attempt to add this link has failed.' ), false ); 1878 $trans['delete']['bookmark'] = array( __( 'Your attempt to delete this link: “%s” has failed.' ), 'use_id' ); 1879 $trans['update']['bookmark'] = array( __( 'Your attempt to edit this link: “%s” has failed.' ), 'use_id' ); 1880 $trans['bulk']['bookmarks'] = array( __( 'Your attempt to bulk modify links has failed.' ), false ); 1881 1882 $trans['add']['page'] = array( __( 'Your attempt to add this page has failed.' ), false ); 1883 $trans['delete']['page'] = array( __( 'Your attempt to delete this page: “%s” has failed.' ), 'get_the_title' ); 1884 $trans['update']['page'] = array( __( 'Your attempt to edit this page: “%s” has failed.' ), 'get_the_title' ); 1885 1886 $trans['edit']['plugin'] = array( __( 'Your attempt to edit this plugin file: “%s” has failed.' ), 'use_id' ); 1887 $trans['activate']['plugin'] = array( __( 'Your attempt to activate this plugin: “%s” has failed.' ), 'use_id' ); 1888 $trans['deactivate']['plugin'] = array( __( 'Your attempt to deactivate this plugin: “%s” has failed.' ), 'use_id' ); 1889 $trans['upgrade']['plugin'] = array( __( 'Your attempt to update this plugin: “%s” has failed.' ), 'use_id' ); 1890 1891 $trans['add']['post'] = array( __( 'Your attempt to add this post has failed.' ), false ); 1892 $trans['delete']['post'] = array( __( 'Your attempt to delete this post: “%s” has failed.' ), 'get_the_title' ); 1893 $trans['update']['post'] = array( __( 'Your attempt to edit this post: “%s” has failed.' ), 'get_the_title' ); 1894 1895 $trans['add']['user'] = array( __( 'Your attempt to add this user has failed.' ), false ); 1896 $trans['delete']['users'] = array( __( 'Your attempt to delete users has failed.' ), false ); 1897 $trans['bulk']['users'] = array( __( 'Your attempt to bulk modify users has failed.' ), false ); 1898 $trans['update']['user'] = array( __( 'Your attempt to edit this user: “%s” has failed.' ), 'get_the_author_meta', 'display_name' ); 1899 $trans['update']['profile'] = array( __( 'Your attempt to modify the profile for: “%s” has failed.' ), 'get_the_author_meta', 'display_name' ); 1900 1901 $trans['update']['options'] = array( __( 'Your attempt to edit your settings has failed.' ), false ); 1902 $trans['update']['permalink'] = array( __( 'Your attempt to change your permalink structure to: %s has failed.' ), 'use_id' ); 1903 $trans['edit']['file'] = array( __( 'Your attempt to edit this file: “%s” has failed.' ), 'use_id' ); 1904 $trans['edit']['theme'] = array( __( 'Your attempt to edit this theme file: “%s” has failed.' ), 'use_id' ); 1905 $trans['switch']['theme'] = array( __( 'Your attempt to switch to this theme: “%s” has failed.' ), 'use_id' ); 1906 1907 $trans['log']['out'] = array( sprintf( __( 'You are attempting to log out of %s' ), get_bloginfo( 'sitename' ) ), false ); 1908 1909 if ( isset( $trans[$verb][$noun] ) ) { 1910 if ( !empty( $trans[$verb][$noun][1] ) ) { 1911 $lookup = $trans[$verb][$noun][1]; 1912 if ( isset($trans[$verb][$noun][2]) ) 1913 $lookup_value = $trans[$verb][$noun][2]; 1914 $object = $matches[4]; 1915 if ( 'use_id' != $lookup ) { 1916 if ( isset( $lookup_value ) ) 1917 $object = call_user_func( $lookup, $lookup_value, $object ); 1918 else 1919 $object = call_user_func( $lookup, $object ); 1920 } 1921 return sprintf( $trans[$verb][$noun][0], esc_html($object) ); 1922 } else { 1923 return $trans[$verb][$noun][0]; 1924 } 1925 } 1926 1927 return apply_filters( 'explain_nonce_' . $verb . '-' . $noun, __( 'Are you sure you want to do this?' ), isset($matches[4]) ? $matches[4] : '' ); 1928 } else { 1929 return apply_filters( 'explain_nonce_' . $action, __( 'Are you sure you want to do this?' ) ); 1930 } 1931 } 1932 1933 /** 1934 * Display "Are You Sure" message to confirm the action being taken. 1935 * 1936 * If the action has the nonce explain message, then it will be displayed along 1937 * with the "Are you sure?" message. 1938 * 1939 * @package WordPress 1940 * @subpackage Security 1941 * @since 2.0.4 1942 * 1943 * @param string $action The nonce action. 1944 */ 1945 function wp_nonce_ays( $action ) { 1946 $title = __( 'WordPress Failure Notice' ); 1947 $html = esc_html( wp_explain_nonce( $action ) ); 1948 if ( 'log-out' == $action ) 1949 $html .= "</p><p>" . sprintf( __( "Do you really want to <a href='%s'>log out</a>?"), wp_logout_url() ); 1950 elseif ( wp_get_referer() ) 1951 $html .= "</p><p><a href='" . esc_url( remove_query_arg( 'updated', wp_get_referer() ) ) . "'>" . __( 'Please try again.' ) . "</a>"; 1952 1953 wp_die( $html, $title, array('response' => 403) ); 1954 } 1955 1956 /** 1957 * Kill WordPress execution and display HTML message with error message. 1958 * 1959 * This function complements the die() PHP function. The difference is that 1960 * HTML will be displayed to the user. It is recommended to use this function 1961 * only, when the execution should not continue any further. It is not 1962 * recommended to call this function very often and try to handle as many errors 1963 * as possible silently. 1964 * 1965 * @since 2.0.4 1966 * 1967 * @param string $message Error message. 1968 * @param string $title Error title. 1969 * @param string|array $args Optional arguments to control behavior. 1970 */ 1971 function wp_die( $message = '', $title = '', $args = array() ) { 1972 if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) 1973 $function = apply_filters( 'wp_die_ajax_handler', '_ajax_wp_die_handler' ); 1974 elseif ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) 1975 $function = apply_filters( 'wp_die_xmlrpc_handler', '_xmlrpc_wp_die_handler' ); 1976 elseif ( defined( 'APP_REQUEST' ) && APP_REQUEST ) 1977 $function = apply_filters( 'wp_die_app_handler', '_scalar_wp_die_handler' ); 1978 else 1979 $function = apply_filters( 'wp_die_handler', '_default_wp_die_handler' ); 1980 1981 call_user_func( $function, $message, $title, $args ); 1982 } 1983 1984 /** 1985 * Kill WordPress execution and display HTML message with error message. 1986 * 1987 * This is the default handler for wp_die if you want a custom one for your 1988 * site then you can overload using the wp_die_handler filter in wp_die 1989 * 1990 * @since 3.0.0 1991 * @access private 1992 * 1993 * @param string $message Error message. 1994 * @param string $title Error title. 1995 * @param string|array $args Optional arguments to control behavior. 1996 */ 1997 function _default_wp_die_handler( $message, $title = '', $args = array() ) { 1998 $defaults = array( 'response' => 500 ); 1999 $r = wp_parse_args($args, $defaults); 2000 2001 $have_gettext = function_exists('__'); 2002 2003 if ( function_exists( 'is_wp_error' ) && is_wp_error( $message ) ) { 2004 if ( empty( $title ) ) { 2005 $error_data = $message->get_error_data(); 2006 if ( is_array( $error_data ) && isset( $error_data['title'] ) ) 2007 $title = $error_data['title']; 2008 } 2009 $errors = $message->get_error_messages(); 2010 switch ( count( $errors ) ) : 2011 case 0 : 2012 $message = ''; 2013 break; 2014 case 1 : 2015 $message = "<p>{$errors[0]}</p>"; 2016 break; 2017 default : 2018 $message = "<ul>\n\t\t<li>" . join( "</li>\n\t\t<li>", $errors ) . "</li>\n\t</ul>"; 2019 break; 2020 endswitch; 2021 } elseif ( is_string( $message ) ) { 2022 $message = "<p>$message</p>"; 2023 } 2024 2025 if ( isset( $r['back_link'] ) && $r['back_link'] ) { 2026 $back_text = $have_gettext? __('« Back') : '« Back'; 2027 $message .= "\n<p><a href='javascript:history.back()'>$back_text</a></p>"; 2028 } 2029 2030 if ( ! did_action( 'admin_head' ) ) : 2031 if ( !headers_sent() ) { 2032 status_header( $r['response'] ); 2033 nocache_headers(); 2034 header( 'Content-Type: text/html; charset=utf-8' ); 2035 } 2036 2037 if ( empty($title) ) 2038 $title = $have_gettext ? __('WordPress › Error') : 'WordPress › Error'; 2039 2040 $text_direction = 'ltr'; 2041 if ( isset($r['text_direction']) && 'rtl' == $r['text_direction'] ) 2042 $text_direction = 'rtl'; 2043 elseif ( function_exists( 'is_rtl' ) && is_rtl() ) 2044 $text_direction = 'rtl'; 2045 ?> 2046 <!DOCTYPE html> 2047 <!-- Ticket #11289, IE bug fix: always pad the error page with enough characters such that it is greater than 512 bytes, even after gzip compression abcdefghijklmnopqrstuvwxyz1234567890aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz11223344556677889900abacbcbdcdcededfefegfgfhghgihihjijikjkjlklkmlmlnmnmononpopoqpqprqrqsrsrtstsubcbcdcdedefefgfabcadefbghicjkldmnoepqrfstugvwxhyz1i234j567k890laabmbccnddeoeffpgghqhiirjjksklltmmnunoovppqwqrrxsstytuuzvvw0wxx1yyz2z113223434455666777889890091abc2def3ghi4jkl5mno6pqr7stu8vwx9yz11aab2bcc3dd4ee5ff6gg7hh8ii9j0jk1kl2lmm3nnoo4p5pq6qrr7ss8tt9uuvv0wwx1x2yyzz13aba4cbcb5dcdc6dedfef8egf9gfh0ghg1ihi2hji3jik4jkj5lkl6kml7mln8mnm9ono 2048 --> 2049 <html xmlns="http://www.w3.org/1999/xhtml" <?php if ( function_exists( 'language_attributes' ) && function_exists( 'is_rtl' ) ) language_attributes(); else echo "dir='$text_direction'"; ?>> 2050 <head> 2051 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 2052 <title><?php echo $title ?></title> 2053 <style type="text/css"> 2054 html { 2055 background: #f9f9f9; 2056 } 2057 body { 2058 background: #fff; 2059 color: #333; 2060 font-family: sans-serif; 2061 margin: 2em auto; 2062 padding: 1em 2em; 2063 -webkit-border-radius: 3px; 2064 border-radius: 3px; 2065 border: 1px solid #dfdfdf; 2066 max-width: 700px; 2067 } 2068 h1 { 2069 border-bottom: 1px solid #dadada; 2070 clear: both; 2071 color: #666; 2072 font: 24px Georgia, "Times New Roman", Times, serif; 2073 margin: 30px 0 0 0; 2074 padding: 0; 2075 padding-bottom: 7px; 2076 } 2077 #error-page { 2078 margin-top: 50px; 2079 } 2080 #error-page p { 2081 font-size: 14px; 2082 line-height: 1.5; 2083 margin: 25px 0 20px; 2084 } 2085 #error-page code { 2086 font-family: Consolas, Monaco, monospace; 2087 } 2088 ul li { 2089 margin-bottom: 10px; 2090 font-size: 14px ; 2091 } 2092 a { 2093 color: #21759B; 2094 text-decoration: none; 2095 } 2096 a:hover { 2097 color: #D54E21; 2098 } 2099 2100 .button { 2101 font-family: sans-serif; 2102 text-decoration: none; 2103 font-size: 14px !important; 2104 line-height: 16px; 2105 padding: 6px 12px; 2106 cursor: pointer; 2107 border: 1px solid #bbb; 2108 color: #464646; 2109 -webkit-border-radius: 15px; 2110 border-radius: 15px; 2111 -moz-box-sizing: content-box; 2112 -webkit-box-sizing: content-box; 2113 box-sizing: content-box; 2114 background-color: #f5f5f5; 2115 background-image: -ms-linear-gradient(top, #ffffff, #f2f2f2); 2116 background-image: -moz-linear-gradient(top, #ffffff, #f2f2f2); 2117 background-image: -o-linear-gradient(top, #ffffff, #f2f2f2); 2118 background-image: -webkit-gradient(linear, left top, left bottom, from(#ffffff), to(#f2f2f2)); 2119 background-image: -webkit-linear-gradient(top, #ffffff, #f2f2f2); 2120 background-image: linear-gradient(top, #ffffff, #f2f2f2); 2121 } 2122 2123 .button:hover { 2124 color: #000; 2125 border-color: #666; 2126 } 2127 2128 .button:active { 2129 background-image: -ms-linear-gradient(top, #f2f2f2, #ffffff); 2130 background-image: -moz-linear-gradient(top, #f2f2f2, #ffffff); 2131 background-image: -o-linear-gradient(top, #f2f2f2, #ffffff); 2132 background-image: -webkit-gradient(linear, left top, left bottom, from(#f2f2f2), to(#ffffff)); 2133 background-image: -webkit-linear-gradient(top, #f2f2f2, #ffffff); 2134 background-image: linear-gradient(top, #f2f2f2, #ffffff); 2135 } 2136 2137 <?php if ( 'rtl' == $text_direction ) : ?> 2138 body { font-family: Tahoma, Arial; } 2139 <?php endif; ?> 2140 </style> 2141 </head> 2142 <body id="error-page"> 2143 <?php endif; // ! did_action( 'admin_head' ) ?> 2144 <?php echo $message; ?> 2145 </body> 2146 </html> 2147 <?php 2148 die(); 2149 } 2150 2151 /** 2152 * Kill WordPress execution and display XML message with error message. 2153 * 2154 * This is the handler for wp_die when processing XMLRPC requests. 2155 * 2156 * @since 3.2.0 2157 * @access private 2158 * 2159 * @param string $message Error message. 2160 * @param string $title Error title. 2161 * @param string|array $args Optional arguments to control behavior. 2162 */ 2163 function _xmlrpc_wp_die_handler( $message, $title = '', $args = array() ) { 2164 global $wp_xmlrpc_server; 2165 $defaults = array( 'response' => 500 ); 2166 2167 $r = wp_parse_args($args, $defaults); 2168 2169 if ( $wp_xmlrpc_server ) { 2170 $error = new IXR_Error( $r['response'] , $message); 2171 $wp_xmlrpc_server->output( $error->getXml() ); 2172 } 2173 die(); 2174 } 2175 2176 /** 2177 * Kill WordPress ajax execution. 2178 * 2179 * This is the handler for wp_die when processing Ajax requests. 2180 * 2181 * @since 3.4.0 2182 * @access private 2183 * 2184 * @param string $message Optional. Response to print. 2185 */ 2186 function _ajax_wp_die_handler( $message = '' ) { 2187 if ( is_scalar( $message ) ) 2188 die( (string) $message ); 2189 die( '0' ); 2190 } 2191 2192 /** 2193 * Kill WordPress execution. 2194 * 2195 * This is the handler for wp_die when processing APP requests. 2196 * 2197 * @since 3.4.0 2198 * @access private 2199 * 2200 * @param string $message Optional. Response to print. 2201 */ 2202 function _scalar_wp_die_handler( $message = '' ) { 2203 if ( is_scalar( $message ) ) 2204 die( (string) $message ); 2205 die(); 2206 } 2207 2208 /** 2209 * Retrieve the WordPress home page URL. 2210 * 2211 * If the constant named 'WP_HOME' exists, then it will be used and returned by 2212 * the function. This can be used to counter the redirection on your local 2213 * development environment. 2214 * 2215 * @access private 2216 * @package WordPress 2217 * @since 2.2.0 2218 * 2219 * @param string $url URL for the home location 2220 * @return string Homepage location. 2221 */ 2222 function _config_wp_home( $url = '' ) { 2223 if ( defined( 'WP_HOME' ) ) 2224 return untrailingslashit( WP_HOME ); 2225 return $url; 2226 } 2227 2228 /** 2229 * Retrieve the WordPress site URL. 2230 * 2231 * If the constant named 'WP_SITEURL' is defined, then the value in that 2232 * constant will always be returned. This can be used for debugging a site on 2233 * your localhost while not having to change the database to your URL. 2234 * 2235 * @access private 2236 * @package WordPress 2237 * @since 2.2.0 2238 * 2239 * @param string $url URL to set the WordPress site location. 2240 * @return string The WordPress Site URL 2241 */ 2242 function _config_wp_siteurl( $url = '' ) { 2243 if ( defined( 'WP_SITEURL' ) ) 2244 return untrailingslashit( WP_SITEURL ); 2245 return $url; 2246 } 2247 2248 /** 2249 * Set the localized direction for MCE plugin. 2250 * 2251 * Will only set the direction to 'rtl', if the WordPress locale has the text 2252 * direction set to 'rtl'. 2253 * 2254 * Fills in the 'directionality', 'plugins', and 'theme_advanced_button1' array 2255 * keys. These keys are then returned in the $input array. 2256 * 2257 * @access private 2258 * @package WordPress 2259 * @subpackage MCE 2260 * @since 2.1.0 2261 * 2262 * @param array $input MCE plugin array. 2263 * @return array Direction set for 'rtl', if needed by locale. 2264 */ 2265 function _mce_set_direction( $input ) { 2266 if ( is_rtl() ) { 2267 $input['directionality'] = 'rtl'; 2268 $input['plugins'] .= ',directionality'; 2269 $input['theme_advanced_buttons1'] .= ',ltr'; 2270 } 2271 2272 return $input; 2273 } 2274 2275 /** 2276 * Convert smiley code to the icon graphic file equivalent. 2277 * 2278 * You can turn off smilies, by going to the write setting screen and unchecking 2279 * the box, or by setting 'use_smilies' option to false or removing the option. 2280 * 2281 * Plugins may override the default smiley list by setting the $wpsmiliestrans 2282 * to an array, with the key the code the blogger types in and the value the 2283 * image file. 2284 * 2285 * The $wp_smiliessearch global is for the regular expression and is set each 2286 * time the function is called. 2287 * 2288 * The full list of smilies can be found in the function and won't be listed in 2289 * the description. Probably should create a Codex page for it, so that it is 2290 * available. 2291 * 2292 * @global array $wpsmiliestrans 2293 * @global array $wp_smiliessearch 2294 * @since 2.2.0 2295 */ 2296 function smilies_init() { 2297 global $wpsmiliestrans, $wp_smiliessearch; 2298 2299 // don't bother setting up smilies if they are disabled 2300 if ( !get_option( 'use_smilies' ) ) 2301 return; 2302 2303 if ( !isset( $wpsmiliestrans ) ) { 2304 $wpsmiliestrans = array( 2305 ':mrgreen:' => 'icon_mrgreen.gif', 2306 ':neutral:' => 'icon_neutral.gif', 2307 ':twisted:' => 'icon_twisted.gif', 2308 ':arrow:' => 'icon_arrow.gif', 2309 ':shock:' => 'icon_eek.gif', 2310 ':smile:' => 'icon_smile.gif', 2311 ':???:' => 'icon_confused.gif', 2312 ':cool:' => 'icon_cool.gif', 2313 ':evil:' => 'icon_evil.gif', 2314 ':grin:' => 'icon_biggrin.gif', 2315 ':idea:' => 'icon_idea.gif', 2316 ':oops:' => 'icon_redface.gif', 2317 ':razz:' => 'icon_razz.gif', 2318 ':roll:' => 'icon_rolleyes.gif', 2319 ':wink:' => 'icon_wink.gif', 2320 ':cry:' => 'icon_cry.gif', 2321 ':eek:' => 'icon_surprised.gif', 2322 ':lol:' => 'icon_lol.gif', 2323 ':mad:' => 'icon_mad.gif', 2324 ':sad:' => 'icon_sad.gif', 2325 '8-)' => 'icon_cool.gif', 2326 '8-O' => 'icon_eek.gif', 2327 ':-(' => 'icon_sad.gif', 2328 ':-)' => 'icon_smile.gif', 2329 ':-?' => 'icon_confused.gif', 2330 ':-D' => 'icon_biggrin.gif', 2331 ':-P' => 'icon_razz.gif', 2332 ':-o' => 'icon_surprised.gif', 2333 ':-x' => 'icon_mad.gif', 2334 ':-|' => 'icon_neutral.gif', 2335 ';-)' => 'icon_wink.gif', 2336 // This one transformation breaks regular text with frequency. 2337 // '8)' => 'icon_cool.gif', 2338 '8O' => 'icon_eek.gif', 2339 ':(' => 'icon_sad.gif', 2340 ':)' => 'icon_smile.gif', 2341 ':?' => 'icon_confused.gif', 2342 ':D' => 'icon_biggrin.gif', 2343 ':P' => 'icon_razz.gif', 2344 ':o' => 'icon_surprised.gif', 2345 ':x' => 'icon_mad.gif', 2346 ':|' => 'icon_neutral.gif', 2347 ';)' => 'icon_wink.gif', 2348 ':!:' => 'icon_exclaim.gif', 2349 ':?:' => 'icon_question.gif', 2350 ); 2351 } 2352 2353 if (count($wpsmiliestrans) == 0) { 2354 return; 2355 } 2356 2357 /* 2358 * NOTE: we sort the smilies in reverse key order. This is to make sure 2359 * we match the longest possible smilie (:???: vs :?) as the regular 2360 * expression used below is first-match 2361 */ 2362 krsort($wpsmiliestrans); 2363 2364 $wp_smiliessearch = '/(?:\s|^)'; 2365 2366 $subchar = ''; 2367 foreach ( (array) $wpsmiliestrans as $smiley => $img ) { 2368 $firstchar = substr($smiley, 0, 1); 2369 $rest = substr($smiley, 1); 2370 2371 // new subpattern? 2372 if ($firstchar != $subchar) { 2373 if ($subchar != '') { 2374 $wp_smiliessearch .= ')|(?:\s|^)'; 2375 } 2376 $subchar = $firstchar; 2377 $wp_smiliessearch .= preg_quote($firstchar, '/') . '(?:'; 2378 } else { 2379 $wp_smiliessearch .= '|'; 2380 } 2381 $wp_smiliessearch .= preg_quote($rest, '/'); 2382 } 2383 2384 $wp_smiliessearch .= ')(?:\s|$)/m'; 2385 } 2386 2387 /** 2388 * Merge user defined arguments into defaults array. 2389 * 2390 * This function is used throughout WordPress to allow for both string or array 2391 * to be merged into another array. 2392 * 2393 * @since 2.2.0 2394 * 2395 * @param string|array $args Value to merge with $defaults 2396 * @param array $defaults Array that serves as the defaults. 2397 * @return array Merged user defined values with defaults. 2398 */ 2399 function wp_parse_args( $args, $defaults = '' ) { 2400 if ( is_object( $args ) ) 2401 $r = get_object_vars( $args ); 2402 elseif ( is_array( $args ) ) 2403 $r =& $args; 2404 else 2405 wp_parse_str( $args, $r ); 2406 2407 if ( is_array( $defaults ) ) 2408 return array_merge( $defaults, $r ); 2409 return $r; 2410 } 2411 2412 /** 2413 * Clean up an array, comma- or space-separated list of IDs. 2414 * 2415 * @since 3.0.0 2416 * 2417 * @param array|string $list 2418 * @return array Sanitized array of IDs 2419 */ 2420 function wp_parse_id_list( $list ) { 2421 if ( !is_array($list) ) 2422 $list = preg_split('/[\s,]+/', $list); 2423 2424 return array_unique(array_map('absint', $list)); 2425 } 2426 2427 /** 2428 * Extract a slice of an array, given a list of keys. 2429 * 2430 * @since 3.1.0 2431 * 2432 * @param array $array The original array 2433 * @param array $keys The list of keys 2434 * @return array The array slice 2435 */ 2436 function wp_array_slice_assoc( $array, $keys ) { 2437 $slice = array(); 2438 foreach ( $keys as $key ) 2439 if ( isset( $array[ $key ] ) ) 2440 $slice[ $key ] = $array[ $key ]; 2441 2442 return $slice; 2443 } 2444 2445 /** 2446 * Filters a list of objects, based on a set of key => value arguments. 2447 * 2448 * @since 3.0.0 2449 * 2450 * @param array $list An array of objects to filter 2451 * @param array $args An array of key => value arguments to match against each object 2452 * @param string $operator The logical operation to perform. 'or' means only one element 2453 * from the array needs to match; 'and' means all elements must match. The default is 'and'. 2454 * @param bool|string $field A field from the object to place instead of the entire object 2455 * @return array A list of objects or object fields 2456 */ 2457 function wp_filter_object_list( $list, $args = array(), $operator = 'and', $field = false ) { 2458 if ( ! is_array( $list ) ) 2459 return array(); 2460 2461 $list = wp_list_filter( $list, $args, $operator ); 2462 2463 if ( $field ) 2464 $list = wp_list_pluck( $list, $field ); 2465 2466 return $list; 2467 } 2468 2469 /** 2470 * Filters a list of objects, based on a set of key => value arguments. 2471 * 2472 * @since 3.1.0 2473 * 2474 * @param array $list An array of objects to filter 2475 * @param array $args An array of key => value arguments to match against each object 2476 * @param string $operator The logical operation to perform: 2477 * 'AND' means all elements from the array must match; 2478 * 'OR' means only one element needs to match; 2479 * 'NOT' means no elements may match. 2480 * The default is 'AND'. 2481 * @return array 2482 */ 2483 function wp_list_filter( $list, $args = array(), $operator = 'AND' ) { 2484 if ( ! is_array( $list ) ) 2485 return array(); 2486 2487 if ( empty( $args ) ) 2488 return $list; 2489 2490 $operator = strtoupper( $operator ); 2491 $count = count( $args ); 2492 $filtered = array(); 2493 2494 foreach ( $list as $key => $obj ) { 2495 $to_match = (array) $obj; 2496 2497 $matched = 0; 2498 foreach ( $args as $m_key => $m_value ) { 2499 if ( $m_value == $to_match[ $m_key ] ) 2500 $matched++; 2501 } 2502 2503 if ( ( 'AND' == $operator && $matched == $count ) 2504 || ( 'OR' == $operator && $matched > 0 ) 2505 || ( 'NOT' == $operator && 0 == $matched ) ) { 2506 $filtered[$key] = $obj; 2507 } 2508 } 2509 2510 return $filtered; 2511 } 2512 2513 /** 2514 * Pluck a certain field out of each object in a list. 2515 * 2516 * @since 3.1.0 2517 * 2518 * @param array $list A list of objects or arrays 2519 * @param int|string $field A field from the object to place instead of the entire object 2520 * @return array 2521 */ 2522 function wp_list_pluck( $list, $field ) { 2523 foreach ( $list as $key => $value ) { 2524 if ( is_object( $value ) ) 2525 $list[ $key ] = $value->$field; 2526 else 2527 $list[ $key ] = $value[ $field ]; 2528 } 2529 2530 return $list; 2531 } 2532 2533 /** 2534 * Determines if Widgets library should be loaded. 2535 * 2536 * Checks to make sure that the widgets library hasn't already been loaded. If 2537 * it hasn't, then it will load the widgets library and run an action hook. 2538 * 2539 * @since 2.2.0 2540 * @uses add_action() Calls '_admin_menu' hook with 'wp_widgets_add_menu' value. 2541 */ 2542 function wp_maybe_load_widgets() { 2543 if ( ! apply_filters('load_default_widgets', true) ) 2544 return; 2545 require_once ( ABSPATH . WPINC . '/default-widgets.php' ); 2546 add_action( '_admin_menu', 'wp_widgets_add_menu' ); 2547 } 2548 2549 /** 2550 * Append the Widgets menu to the themes main menu. 2551 * 2552 * @since 2.2.0 2553 * @uses $submenu The administration submenu list. 2554 */ 2555 function wp_widgets_add_menu() { 2556 global $submenu; 2557 $submenu['themes.php'][7] = array( __( 'Widgets' ), 'edit_theme_options', 'widgets.php' ); 2558 ksort( $submenu['themes.php'], SORT_NUMERIC ); 2559 } 2560 2561 /** 2562 * Flush all output buffers for PHP 5.2. 2563 * 2564 * Make sure all output buffers are flushed before our singletons our destroyed. 2565 * 2566 * @since 2.2.0 2567 */ 2568 function wp_ob_end_flush_all() { 2569 $levels = ob_get_level(); 2570 for ($i=0; $i<$levels; $i++) 2571 ob_end_flush(); 2572 } 2573 2574 /** 2575 * Load custom DB error or display WordPress DB error. 2576 * 2577 * If a file exists in the wp-content directory named db-error.php, then it will 2578 * be loaded instead of displaying the WordPress DB error. If it is not found, 2579 * then the WordPress DB error will be displayed instead. 2580 * 2581 * The WordPress DB error sets the HTTP status header to 500 to try to prevent 2582 * search engines from caching the message. Custom DB messages should do the 2583 * same. 2584 * 2585 * This function was backported to the the WordPress 2.3.2, but originally was 2586 * added in WordPress 2.5.0. 2587 * 2588 * @since 2.3.2 2589 * @uses $wpdb 2590 */ 2591 function dead_db() { 2592 global $wpdb; 2593 2594 // Load custom DB error template, if present. 2595 if ( file_exists( WP_CONTENT_DIR . '/db-error.php' ) ) { 2596 require_once( WP_CONTENT_DIR . '/db-error.php' ); 2597 die(); 2598 } 2599 2600 // If installing or in the admin, provide the verbose message. 2601 if ( defined('WP_INSTALLING') || defined('WP_ADMIN') ) 2602 wp_die($wpdb->error); 2603 2604 // Otherwise, be terse. 2605 status_header( 500 ); 2606 nocache_headers(); 2607 header( 'Content-Type: text/html; charset=utf-8' ); 2608 2609 wp_load_translations_early(); 2610 ?> 2611 <!DOCTYPE html> 2612 <html xmlns="http://www.w3.org/1999/xhtml"<?php if ( is_rtl() ) echo ' dir="rtl"'; ?>> 2613 <head> 2614 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 2615 <title><?php _e( 'Database Error' ); ?></title> 2616 2617 </head> 2618 <body> 2619 <h1><?php _e( 'Error establishing a database connection' ); ?></h1> 2620 </body> 2621 </html> 2622 <?php 2623 die(); 2624 } 2625 2626 /** 2627 * Converts value to nonnegative integer. 2628 * 2629 * @since 2.5.0 2630 * 2631 * @param mixed $maybeint Data you wish to have converted to a nonnegative integer 2632 * @return int An nonnegative integer 2633 */ 2634 function absint( $maybeint ) { 2635 return abs( intval( $maybeint ) ); 2636 } 2637 2638 /** 2639 * Determines if the blog can be accessed over SSL. 2640 * 2641 * Determines if blog can be accessed over SSL by using cURL to access the site 2642 * using the https in the siteurl. Requires cURL extension to work correctly. 2643 * 2644 * @since 2.5.0 2645 * 2646 * @param string $url 2647 * @return bool Whether SSL access is available 2648 */ 2649 function url_is_accessable_via_ssl($url) 2650 { 2651 if (in_array('curl', get_loaded_extensions())) { 2652 $ssl = preg_replace( '/^http:\/\//', 'https://', $url ); 2653 2654 $ch = curl_init(); 2655 curl_setopt($ch, CURLOPT_URL, $ssl); 2656 curl_setopt($ch, CURLOPT_FAILONERROR, true); 2657 curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 2658 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); 2659 curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5); 2660 2661 curl_exec($ch); 2662 2663 $status = curl_getinfo($ch, CURLINFO_HTTP_CODE); 2664 curl_close ($ch); 2665 2666 if ($status == 200 || $status == 401) { 2667 return true; 2668 } 2669 } 2670 return false; 2671 } 2672 2673 /** 2674 * Marks a function as deprecated and informs when it has been used. 2675 * 2676 * There is a hook deprecated_function_run that will be called that can be used 2677 * to get the backtrace up to what file and function called the deprecated 2678 * function. 2679 * 2680 * The current behavior is to trigger a user error if WP_DEBUG is true. 2681 * 2682 * This function is to be used in every function that is deprecated. 2683 * 2684 * @package WordPress 2685 * @subpackage Debug 2686 * @since 2.5.0 2687 * @access private 2688 * 2689 * @uses do_action() Calls 'deprecated_function_run' and passes the function name, what to use instead, 2690 * and the version the function was deprecated in. 2691 * @uses apply_filters() Calls 'deprecated_function_trigger_error' and expects boolean value of true to do 2692 * trigger or false to not trigger error. 2693 * 2694 * @param string $function The function that was called 2695 * @param string $version The version of WordPress that deprecated the function 2696 * @param string $replacement Optional. The function that should have been called 2697 */ 2698 function _deprecated_function( $function, $version, $replacement = null ) { 2699 2700 do_action( 'deprecated_function_run', $function, $replacement, $version ); 2701 2702 // Allow plugin to filter the output error trigger 2703 if ( WP_DEBUG && apply_filters( 'deprecated_function_trigger_error', true ) ) { 2704 if ( ! is_null($replacement) ) 2705 trigger_error( sprintf( __('%1$s is <strong>deprecated</strong> since version %2$s! Use %3$s instead.'), $function, $version, $replacement ) ); 2706 else 2707 trigger_error( sprintf( __('%1$s is <strong>deprecated</strong> since version %2$s with no alternative available.'), $function, $version ) ); 2708 } 2709 } 2710 2711 /** 2712 * Marks a file as deprecated and informs when it has been used. 2713 * 2714 * There is a hook deprecated_file_included that will be called that can be used 2715 * to get the backtrace up to what file and function included the deprecated 2716 * file. 2717 * 2718 * The current behavior is to trigger a user error if WP_DEBUG is true. 2719 * 2720 * This function is to be used in every file that is deprecated. 2721 * 2722 * @package WordPress 2723 * @subpackage Debug 2724 * @since 2.5.0 2725 * @access private 2726 * 2727 * @uses do_action() Calls 'deprecated_file_included' and passes the file name, what to use instead, 2728 * the version in which the file was deprecated, and any message regarding the change. 2729 * @uses apply_filters() Calls 'deprecated_file_trigger_error' and expects boolean value of true to do 2730 * trigger or false to not trigger error. 2731 * 2732 * @param string $file The file that was included 2733 * @param string $version The version of WordPress that deprecated the file 2734 * @param string $replacement Optional. The file that should have been included based on ABSPATH 2735 * @param string $message Optional. A message regarding the change 2736 */ 2737 function _deprecated_file( $file, $version, $replacement = null, $message = '' ) { 2738 2739 do_action( 'deprecated_file_included', $file, $replacement, $version, $message ); 2740 2741 // Allow plugin to filter the output error trigger 2742 if ( WP_DEBUG && apply_filters( 'deprecated_file_trigger_error', true ) ) { 2743 $message = empty( $message ) ? '' : ' ' . $message; 2744 if ( ! is_null( $replacement ) ) 2745 trigger_error( sprintf( __('%1$s is <strong>deprecated</strong> since version %2$s! Use %3$s instead.'), $file, $version, $replacement ) . $message ); 2746 else 2747 trigger_error( sprintf( __('%1$s is <strong>deprecated</strong> since version %2$s with no alternative available.'), $file, $version ) . $message ); 2748 } 2749 } 2750 /** 2751 * Marks a function argument as deprecated and informs when it has been used. 2752 * 2753 * This function is to be used whenever a deprecated function argument is used. 2754 * Before this function is called, the argument must be checked for whether it was 2755 * used by comparing it to its default value or evaluating whether it is empty. 2756 * For example: 2757 * <code> 2758 * if ( !empty($deprecated) ) 2759 * _deprecated_argument( __FUNCTION__, '3.0' ); 2760 * </code> 2761 * 2762 * There is a hook deprecated_argument_run that will be called that can be used 2763 * to get the backtrace up to what file and function used the deprecated 2764 * argument. 2765 * 2766 * The current behavior is to trigger a user error if WP_DEBUG is true. 2767 * 2768 * @package WordPress 2769 * @subpackage Debug 2770 * @since 3.0.0 2771 * @access private 2772 * 2773 * @uses do_action() Calls 'deprecated_argument_run' and passes the function name, a message on the change, 2774 * and the version in which the argument was deprecated. 2775 * @uses apply_filters() Calls 'deprecated_argument_trigger_error' and expects boolean value of true to do 2776 * trigger or false to not trigger error. 2777 * 2778 * @param string $function The function that was called 2779 * @param string $version The version of WordPress that deprecated the argument used 2780 * @param string $message Optional. A message regarding the change. 2781 */ 2782 function _deprecated_argument( $function, $version, $message = null ) { 2783 2784 do_action( 'deprecated_argument_run', $function, $message, $version ); 2785 2786 // Allow plugin to filter the output error trigger 2787 if ( WP_DEBUG && apply_filters( 'deprecated_argument_trigger_error', true ) ) { 2788 if ( ! is_null( $message ) ) 2789 trigger_error( sprintf( __('%1$s was called with an argument that is <strong>deprecated</strong> since version %2$s! %3$s'), $function, $version, $message ) ); 2790 else 2791 trigger_error( sprintf( __('%1$s was called with an argument that is <strong>deprecated</strong> since version %2$s with no alternative available.'), $function, $version ) ); 2792 } 2793 } 2794 2795 /** 2796 * Marks something as being incorrectly called. 2797 * 2798 * There is a hook doing_it_wrong_run that will be called that can be used 2799 * to get the backtrace up to what file and function called the deprecated 2800 * function. 2801 * 2802 * The current behavior is to trigger a user error if WP_DEBUG is true. 2803 * 2804 * @package WordPress 2805 * @subpackage Debug 2806 * @since 3.1.0 2807 * @access private 2808 * 2809 * @uses do_action() Calls 'doing_it_wrong_run' and passes the function arguments. 2810 * @uses apply_filters() Calls 'doing_it_wrong_trigger_error' and expects boolean value of true to do 2811 * trigger or false to not trigger error. 2812 * 2813 * @param string $function The function that was called. 2814 * @param string $message A message explaining what has been done incorrectly. 2815 * @param string $version The version of WordPress where the message was added. 2816 */ 2817 function _doing_it_wrong( $function, $message, $version ) { 2818 2819 do_action( 'doing_it_wrong_run', $function, $message, $version ); 2820 2821 // Allow plugin to filter the output error trigger 2822 if ( WP_DEBUG && apply_filters( 'doing_it_wrong_trigger_error', true ) ) { 2823 $version = is_null( $version ) ? '' : sprintf( __( '(This message was added in version %s.)' ), $version ); 2824 $message .= ' ' . __( 'Please see <a href="http://codex.wordpress.org/Debugging_in_WordPress">Debugging in WordPress</a> for more information.' ); 2825 trigger_error( sprintf( __( '%1$s was called <strong>incorrectly</strong>. %2$s %3$s' ), $function, $message, $version ) ); 2826 } 2827 } 2828 2829 /** 2830 * Is the server running earlier than 1.5.0 version of lighttpd? 2831 * 2832 * @since 2.5.0 2833 * 2834 * @return bool Whether the server is running lighttpd < 1.5.0 2835 */ 2836 function is_lighttpd_before_150() { 2837 $server_parts = explode( '/', isset( $_SERVER['SERVER_SOFTWARE'] )? $_SERVER['SERVER_SOFTWARE'] : '' ); 2838 $server_parts[1] = isset( $server_parts[1] )? $server_parts[1] : ''; 2839 return 'lighttpd' == $server_parts[0] && -1 == version_compare( $server_parts[1], '1.5.0' ); 2840 } 2841 2842 /** 2843 * Does the specified module exist in the Apache config? 2844 * 2845 * @since 2.5.0 2846 * 2847 * @param string $mod e.g. mod_rewrite 2848 * @param bool $default The default return value if the module is not found 2849 * @return bool 2850 */ 2851 function apache_mod_loaded($mod, $default = false) { 2852 global $is_apache; 2853 2854 if ( !$is_apache ) 2855 return false; 2856 2857 if ( function_exists('apache_get_modules') ) { 2858 $mods = apache_get_modules(); 2859 if ( in_array($mod, $mods) ) 2860 return true; 2861 } elseif ( function_exists('phpinfo') ) { 2862 ob_start(); 2863 phpinfo(8); 2864 $phpinfo = ob_get_clean(); 2865 if ( false !== strpos($phpinfo, $mod) ) 2866 return true; 2867 } 2868 return $default; 2869 } 2870 2871 /** 2872 * Check if IIS 7 supports pretty permalinks. 2873 * 2874 * @since 2.8.0 2875 * 2876 * @return bool 2877 */ 2878 function iis7_supports_permalinks() { 2879 global $is_iis7; 2880 2881 $supports_permalinks = false; 2882 if ( $is_iis7 ) { 2883 /* First we check if the DOMDocument class exists. If it does not exist, 2884 * which is the case for PHP 4.X, then we cannot easily update the xml configuration file, 2885 * hence we just bail out and tell user that pretty permalinks cannot be used. 2886 * This is not a big issue because PHP 4.X is going to be deprecated and for IIS it 2887 * is recommended to use PHP 5.X NTS. 2888 * Next we check if the URL Rewrite Module 1.1 is loaded and enabled for the web site. When 2889 * URL Rewrite 1.1 is loaded it always sets a server variable called 'IIS_UrlRewriteModule'. 2890 * Lastly we make sure that PHP is running via FastCGI. This is important because if it runs 2891 * via ISAPI then pretty permalinks will not work. 2892 */ 2893 $supports_permalinks = class_exists('DOMDocument') && isset($_SERVER['IIS_UrlRewriteModule']) && ( php_sapi_name() == 'cgi-fcgi' ); 2894 } 2895 2896 return apply_filters('iis7_supports_permalinks', $supports_permalinks); 2897 } 2898 2899 /** 2900 * File validates against allowed set of defined rules. 2901 * 2902 * A return value of '1' means that the $file contains either '..' or './'. A 2903 * return value of '2' means that the $file contains ':' after the first 2904 * character. A return value of '3' means that the file is not in the allowed 2905 * files list. 2906 * 2907 * @since 1.2.0 2908 * 2909 * @param string $file File path. 2910 * @param array $allowed_files List of allowed files. 2911 * @return int 0 means nothing is wrong, greater than 0 means something was wrong. 2912 */ 2913 function validate_file( $file, $allowed_files = '' ) { 2914 if ( false !== strpos( $file, '..' ) ) 2915 return 1; 2916 2917 if ( false !== strpos( $file, './' ) ) 2918 return 1; 2919 2920 if ( ! empty( $allowed_files ) && ! in_array( $file, $allowed_files ) ) 2921 return 3; 2922 2923 if (':' == substr( $file, 1, 1 ) ) 2924 return 2; 2925 2926 return 0; 2927 } 2928 2929 /** 2930 * Determine if SSL is used. 2931 * 2932 * @since 2.6.0 2933 * 2934 * @return bool True if SSL, false if not used. 2935 */ 2936 function is_ssl() { 2937 if ( isset($_SERVER['HTTPS']) ) { 2938 if ( 'on' == strtolower($_SERVER['HTTPS']) ) 2939 return true; 2940 if ( '1' == $_SERVER['HTTPS'] ) 2941 return true; 2942 } elseif ( isset($_SERVER['SERVER_PORT']) && ( '443' == $_SERVER['SERVER_PORT'] ) ) { 2943 return true; 2944 } 2945 return false; 2946 } 2947 2948 /** 2949 * Whether SSL login should be forced. 2950 * 2951 * @since 2.6.0 2952 * 2953 * @param string|bool $force Optional. 2954 * @return bool True if forced, false if not forced. 2955 */ 2956 function force_ssl_login( $force = null ) { 2957 static $forced = false; 2958 2959 if ( !is_null( $force ) ) { 2960 $old_forced = $forced; 2961 $forced = $force; 2962 return $old_forced; 2963 } 2964 2965 return $forced; 2966 } 2967 2968 /** 2969 * Whether to force SSL used for the Administration Screens. 2970 * 2971 * @since 2.6.0 2972 * 2973 * @param string|bool $force 2974 * @return bool True if forced, false if not forced. 2975 */ 2976 function force_ssl_admin( $force = null ) { 2977 static $forced = false; 2978 2979 if ( !is_null( $force ) ) { 2980 $old_forced = $forced; 2981 $forced = $force; 2982 return $old_forced; 2983 } 2984 2985 return $forced; 2986 } 2987 2988 /** 2989 * Guess the URL for the site. 2990 * 2991 * Will remove wp-admin links to retrieve only return URLs not in the wp-admin 2992 * directory. 2993 * 2994 * @since 2.6.0 2995 * 2996 * @return string 2997 */ 2998 function wp_guess_url() { 2999 if ( defined('WP_SITEURL') && '' != WP_SITEURL ) { 3000 $url = WP_SITEURL; 3001 } else { 3002 $schema = is_ssl() ? 'https://' : 'http://'; 3003 $url = preg_replace('#/(wp-admin/.*|wp-login.php)#i', '', $schema . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']); 3004 } 3005 return rtrim($url, '/'); 3006 } 3007 3008 /** 3009 * Temporarily suspend cache additions. 3010 * 3011 * Stops more data being added to the cache, but still allows cache retrieval. 3012 * This is useful for actions, such as imports, when a lot of data would otherwise 3013 * be almost uselessly added to the cache. 3014 * 3015 * Suspension lasts for a single page load at most. Remember to call this 3016 * function again if you wish to re-enable cache adds earlier. 3017 * 3018 * @since 3.3.0 3019 * 3020 * @param bool $suspend Optional. Suspends additions if true, re-enables them if false. 3021 * @return bool The current suspend setting 3022 */ 3023 function wp_suspend_cache_addition( $suspend = null ) { 3024 static $_suspend = false; 3025 3026 if ( is_bool( $suspend ) ) 3027 $_suspend = $suspend; 3028 3029 return $_suspend; 3030 } 3031 3032 /** 3033 * Suspend cache invalidation. 3034 * 3035 * Turns cache invalidation on and off. Useful during imports where you don't wont to do invalidations 3036 * every time a post is inserted. Callers must be sure that what they are doing won't lead to an inconsistent 3037 * cache when invalidation is suspended. 3038 * 3039 * @since 2.7.0 3040 * 3041 * @param bool $suspend Whether to suspend or enable cache invalidation 3042 * @return bool The current suspend setting 3043 */ 3044 function wp_suspend_cache_invalidation($suspend = true) { 3045 global $_wp_suspend_cache_invalidation; 3046 3047 $current_suspend = $_wp_suspend_cache_invalidation; 3048 $_wp_suspend_cache_invalidation = $suspend; 3049 return $current_suspend; 3050 } 3051 3052 /** 3053 * Is main site? 3054 * 3055 * 3056 * @since 3.0.0 3057 * @package WordPress 3058 * 3059 * @param int $blog_id optional blog id to test (default current blog) 3060 * @return bool True if not multisite or $blog_id is main site 3061 */ 3062 function is_main_site( $blog_id = '' ) { 3063 global $current_site, $current_blog; 3064 3065 if ( !is_multisite() ) 3066 return true; 3067 3068 if ( !$blog_id ) 3069 $blog_id = $current_blog->blog_id; 3070 3071 return $blog_id == $current_site->blog_id; 3072 } 3073 3074 /** 3075 * Whether global terms are enabled. 3076 * 3077 * 3078 * @since 3.0.0 3079 * @package WordPress 3080 * 3081 * @return bool True if multisite and global terms enabled 3082 */ 3083 function global_terms_enabled() { 3084 if ( ! is_multisite() ) 3085 return false; 3086 3087 static $global_terms = null; 3088 if ( is_null( $global_terms ) ) { 3089 $filter = apply_filters( 'global_terms_enabled', null ); 3090 if ( ! is_null( $filter ) ) 3091 $global_terms = (bool) $filter; 3092 else 3093 $global_terms = (bool) get_site_option( 'global_terms_enabled', false ); 3094 } 3095 return $global_terms; 3096 } 3097 3098 /** 3099 * gmt_offset modification for smart timezone handling. 3100 * 3101 * Overrides the gmt_offset option if we have a timezone_string available. 3102 * 3103 * @since 2.8.0 3104 * 3105 * @return float|bool 3106 */ 3107 function wp_timezone_override_offset() { 3108 if ( !$timezone_string = get_option( 'timezone_string' ) ) { 3109 return false; 3110 } 3111 3112 $timezone_object = timezone_open( $timezone_string ); 3113 $datetime_object = date_create(); 3114 if ( false === $timezone_object || false === $datetime_object ) { 3115 return false; 3116 } 3117 return round( timezone_offset_get( $timezone_object, $datetime_object ) / 3600, 2 ); 3118 } 3119 3120 /** 3121 * {@internal Missing Short Description}} 3122 * 3123 * @since 2.9.0 3124 * 3125 * @param unknown_type $a 3126 * @param unknown_type $b 3127 * @return int 3128 */ 3129 function _wp_timezone_choice_usort_callback( $a, $b ) { 3130 // Don't use translated versions of Etc 3131 if ( 'Etc' === $a['continent'] && 'Etc' === $b['continent'] ) { 3132 // Make the order of these more like the old dropdown 3133 if ( 'GMT+' === substr( $a['city'], 0, 4 ) && 'GMT+' === substr( $b['city'], 0, 4 ) ) { 3134 return -1 * ( strnatcasecmp( $a['city'], $b['city'] ) ); 3135 } 3136 if ( 'UTC' === $a['city'] ) { 3137 if ( 'GMT+' === substr( $b['city'], 0, 4 ) ) { 3138 return 1; 3139 } 3140 return -1; 3141 } 3142 if ( 'UTC' === $b['city'] ) { 3143 if ( 'GMT+' === substr( $a['city'], 0, 4 ) ) { 3144 return -1; 3145 } 3146 return 1; 3147 } 3148 return strnatcasecmp( $a['city'], $b['city'] ); 3149 } 3150 if ( $a['t_continent'] == $b['t_continent'] ) { 3151 if ( $a['t_city'] == $b['t_city'] ) { 3152 return strnatcasecmp( $a['t_subcity'], $b['t_subcity'] ); 3153 } 3154 return strnatcasecmp( $a['t_city'], $b['t_city'] ); 3155 } else { 3156 // Force Etc to the bottom of the list 3157 if ( 'Etc' === $a['continent'] ) { 3158 return 1; 3159 } 3160 if ( 'Etc' === $b['continent'] ) { 3161 return -1; 3162 } 3163 return strnatcasecmp( $a['t_continent'], $b['t_continent'] ); 3164 } 3165 } 3166 3167 /** 3168 * Gives a nicely formatted list of timezone strings. // temporary! Not in final 3169 * 3170 * @since 2.9.0 3171 * 3172 * @param string $selected_zone Selected Zone 3173 * @return string 3174 */ 3175 function wp_timezone_choice( $selected_zone ) { 3176 static $mo_loaded = false; 3177 3178 $continents = array( 'Africa', 'America', 'Antarctica', 'Arctic', 'Asia', 'Atlantic', 'Australia', 'Europe', 'Indian', 'Pacific'); 3179 3180 // Load translations for continents and cities 3181 if ( !$mo_loaded ) { 3182 $locale = get_locale(); 3183 $mofile = WP_LANG_DIR . '/continents-cities-' . $locale . '.mo'; 3184 load_textdomain( 'continents-cities', $mofile ); 3185 $mo_loaded = true; 3186 } 3187 3188 $zonen = array(); 3189 foreach ( timezone_identifiers_list() as $zone ) { 3190 $zone = explode( '/', $zone ); 3191 if ( !in_array( $zone[0], $continents ) ) { 3192 continue; 3193 } 3194 3195 // This determines what gets set and translated - we don't translate Etc/* strings here, they are done later 3196 $exists = array( 3197 0 => ( isset( $zone[0] ) && $zone[0] ), 3198 1 => ( isset( $zone[1] ) && $zone[1] ), 3199 2 => ( isset( $zone[2] ) && $zone[2] ), 3200 ); 3201 $exists[3] = ( $exists[0] && 'Etc' !== $zone[0] ); 3202 $exists[4] = ( $exists[1] && $exists[3] ); 3203 $exists[5] = ( $exists[2] && $exists[3] ); 3204 3205 $zonen[] = array( 3206 'continent' => ( $exists[0] ? $zone[0] : '' ), 3207 'city' => ( $exists[1] ? $zone[1] : '' ), 3208 'subcity' => ( $exists[2] ? $zone[2] : '' ), 3209 't_continent' => ( $exists[3] ? translate( str_replace( '_', ' ', $zone[0] ), 'continents-cities' ) : '' ), 3210 't_city' => ( $exists[4] ? translate( str_replace( '_', ' ', $zone[1] ), 'continents-cities' ) : '' ), 3211 't_subcity' => ( $exists[5] ? translate( str_replace( '_', ' ', $zone[2] ), 'continents-cities' ) : '' ) 3212 ); 3213 } 3214 usort( $zonen, '_wp_timezone_choice_usort_callback' ); 3215 3216 $structure = array(); 3217 3218 if ( empty( $selected_zone ) ) { 3219 $structure[] = '<option selected="selected" value="">' . __( 'Select a city' ) . '</option>'; 3220 } 3221 3222 foreach ( $zonen as $key => $zone ) { 3223 // Build value in an array to join later 3224 $value = array( $zone['continent'] ); 3225 3226 if ( empty( $zone['city'] ) ) { 3227 // It's at the continent level (generally won't happen) 3228 $display = $zone['t_continent']; 3229 } else { 3230 // It's inside a continent group 3231 3232 // Continent optgroup 3233 if ( !isset( $zonen[$key - 1] ) || $zonen[$key - 1]['continent'] !== $zone['continent'] ) { 3234 $label = $zone['t_continent']; 3235 $structure[] = '<optgroup label="'. esc_attr( $label ) .'">'; 3236 } 3237 3238 // Add the city to the value 3239 $value[] = $zone['city']; 3240 3241 $display = $zone['t_city']; 3242 if ( !empty( $zone['subcity'] ) ) { 3243 // Add the subcity to the value 3244 $value[] = $zone['subcity']; 3245 $display .= ' - ' . $zone['t_subcity']; 3246 } 3247 } 3248 3249 // Build the value 3250 $value = join( '/', $value ); 3251 $selected = ''; 3252 if ( $value === $selected_zone ) { 3253 $selected = 'selected="selected" '; 3254 } 3255 $structure[] = '<option ' . $selected . 'value="' . esc_attr( $value ) . '">' . esc_html( $display ) . "</option>"; 3256 3257 // Close continent optgroup 3258 if ( !empty( $zone['city'] ) && ( !isset($zonen[$key + 1]) || (isset( $zonen[$key + 1] ) && $zonen[$key + 1]['continent'] !== $zone['continent']) ) ) { 3259 $structure[] = '</optgroup>'; 3260 } 3261 } 3262 3263 // Do UTC 3264 $structure[] = '<optgroup label="'. esc_attr__( 'UTC' ) .'">'; 3265 $selected = ''; 3266 if ( 'UTC' === $selected_zone ) 3267 $selected = 'selected="selected" '; 3268 $structure[] = '<option ' . $selected . 'value="' . esc_attr( 'UTC' ) . '">' . __('UTC') . '</option>'; 3269 $structure[] = '</optgroup>'; 3270 3271 // Do manual UTC offsets 3272 $structure[] = '<optgroup label="'. esc_attr__( 'Manual Offsets' ) .'">'; 3273 $offset_range = array (-12, -11.5, -11, -10.5, -10, -9.5, -9, -8.5, -8, -7.5, -7, -6.5, -6, -5.5, -5, -4.5, -4, -3.5, -3, -2.5, -2, -1.5, -1, -0.5, 3274 0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 5.75, 6, 6.5, 7, 7.5, 8, 8.5, 8.75, 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.75, 13, 13.75, 14); 3275 foreach ( $offset_range as $offset ) { 3276 if ( 0 <= $offset ) 3277 $offset_name = '+' . $offset; 3278 else 3279 $offset_name = (string) $offset; 3280 3281 $offset_value = $offset_name; 3282 $offset_name = str_replace(array('.25','.5','.75'), array(':15',':30',':45'), $offset_name); 3283 $offset_name = 'UTC' . $offset_name; 3284 $offset_value = 'UTC' . $offset_value; 3285 $selected = ''; 3286 if ( $offset_value === $selected_zone ) 3287 $selected = 'selected="selected" '; 3288 $structure[] = '<option ' . $selected . 'value="' . esc_attr( $offset_value ) . '">' . esc_html( $offset_name ) . "</option>"; 3289 3290 } 3291 $structure[] = '</optgroup>'; 3292 3293 return join( "\n", $structure ); 3294 } 3295 3296 /** 3297 * Strip close comment and close php tags from file headers used by WP. 3298 * See http://core.trac.wordpress.org/ticket/8497 3299 * 3300 * @since 2.8.0 3301 * 3302 * @param string $str 3303 * @return string 3304 */ 3305 function _cleanup_header_comment($str) { 3306 return trim(preg_replace("/\s*(?:\*\/|\?>).*/", '', $str)); 3307 } 3308 3309 /** 3310 * Permanently deletes posts, pages, attachments, and comments which have been in the trash for EMPTY_TRASH_DAYS. 3311 * 3312 * @since 2.9.0 3313 */ 3314 function wp_scheduled_delete() { 3315 global $wpdb; 3316 3317 $delete_timestamp = time() - (60*60*24*EMPTY_TRASH_DAYS); 3318 3319 $posts_to_delete = $wpdb->get_results($wpdb->prepare("SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_trash_meta_time' AND meta_value < '%d'", $delete_timestamp), ARRAY_A); 3320 3321 foreach ( (array) $posts_to_delete as $post ) { 3322 $post_id = (int) $post['post_id']; 3323 if ( !$post_id ) 3324 continue; 3325 3326 $del_post = get_post($post_id); 3327 3328 if ( !$del_post || 'trash' != $del_post->post_status ) { 3329 delete_post_meta($post_id, '_wp_trash_meta_status'); 3330 delete_post_meta($post_id, '_wp_trash_meta_time'); 3331 } else { 3332 wp_delete_post($post_id); 3333 } 3334 } 3335 3336 $comments_to_delete = $wpdb->get_results($wpdb->prepare("SELECT comment_id FROM $wpdb->commentmeta WHERE meta_key = '_wp_trash_meta_time' AND meta_value < '%d'", $delete_timestamp), ARRAY_A); 3337 3338 foreach ( (array) $comments_to_delete as $comment ) { 3339 $comment_id = (int) $comment['comment_id']; 3340 if ( !$comment_id ) 3341 continue; 3342 3343 $del_comment = get_comment($comment_id); 3344 3345 if ( !$del_comment || 'trash' != $del_comment->comment_approved ) { 3346 delete_comment_meta($comment_id, '_wp_trash_meta_time'); 3347 delete_comment_meta($comment_id, '_wp_trash_meta_status'); 3348 } else { 3349 wp_delete_comment($comment_id); 3350 } 3351 } 3352 } 3353 3354 /** 3355 * Retrieve metadata from a file. 3356 * 3357 * Searches for metadata in the first 8kiB of a file, such as a plugin or theme. 3358 * Each piece of metadata must be on its own line. Fields can not span multiple 3359 * lines, the value will get cut at the end of the first line. 3360 * 3361 * If the file data is not within that first 8kiB, then the author should correct 3362 * their plugin file and move the data headers to the top. 3363 * 3364 * @see http://codex.wordpress.org/File_Header 3365 * 3366 * @since 2.9.0 3367 * @param string $file Path to the file 3368 * @param array $default_headers List of headers, in the format array('HeaderKey' => 'Header Name') 3369 * @param string $context If specified adds filter hook "extra_{$context}_headers" 3370 */ 3371 function get_file_data( $file, $default_headers, $context = '' ) { 3372 // We don't need to write to the file, so just open for reading. 3373 $fp = fopen( $file, 'r' ); 3374 3375 // Pull only the first 8kiB of the file in. 3376 $file_data = fread( $fp, 8192 ); 3377 3378 // PHP will close file handle, but we are good citizens. 3379 fclose( $fp ); 3380 3381 // Make sure we catch CR-only line endings. 3382 $file_data = str_replace( "\r", "\n", $file_data ); 3383 3384 if ( $context && $extra_headers = apply_filters( "extra_{$context}_headers", array() ) ) { 3385 $extra_headers = array_combine( $extra_headers, $extra_headers ); // keys equal values 3386 $all_headers = array_merge( $extra_headers, (array) $default_headers ); 3387 } else { 3388 $all_headers = $default_headers; 3389 } 3390 3391 foreach ( $all_headers as $field => $regex ) { 3392 if ( preg_match( '/^[ \t\/*#@]*' . preg_quote( $regex, '/' ) . ':(.*)$/mi', $file_data, $match ) && $match[1] ) 3393 $all_headers[ $field ] = _cleanup_header_comment( $match[1] ); 3394 else 3395 $all_headers[ $field ] = ''; 3396 } 3397 3398 return $all_headers; 3399 } 3400 3401 /** 3402 * Used internally to tidy up the search terms. 3403 * 3404 * @access private 3405 * @since 2.9.0 3406 * 3407 * @param string $t 3408 * @return string 3409 */ 3410 function _search_terms_tidy($t) { 3411 return trim($t, "\"'\n\r "); 3412 } 3413 3414 /** 3415 * Returns true. 3416 * 3417 * Useful for returning true to filters easily. 3418 * 3419 * @since 3.0.0 3420 * @see __return_false() 3421 * @return bool true 3422 */ 3423 function __return_true() { 3424 return true; 3425 } 3426 3427 /** 3428 * Returns false. 3429 * 3430 * Useful for returning false to filters easily. 3431 * 3432 * @since 3.0.0 3433 * @see __return_true() 3434 * @return bool false 3435 */ 3436 function __return_false() { 3437 return false; 3438 } 3439 3440 /** 3441 * Returns 0. 3442 * 3443 * Useful for returning 0 to filters easily. 3444 * 3445 * @since 3.0.0 3446 * @see __return_zero() 3447 * @return int 0 3448 */ 3449 function __return_zero() { 3450 return 0; 3451 } 3452 3453 /** 3454 * Returns an empty array. 3455 * 3456 * Useful for returning an empty array to filters easily. 3457 * 3458 * @since 3.0.0 3459 * @see __return_zero() 3460 * @return array Empty array 3461 */ 3462 function __return_empty_array() { 3463 return array(); 3464 } 3465 3466 /** 3467 * Returns null. 3468 * 3469 * Useful for returning null to filters easily. 3470 * 3471 * @since 3.4.0 3472 * @return null 3473 */ 3474 function __return_null() { 3475 return null; 3476 } 3477 3478 /** 3479 * Send a HTTP header to disable content type sniffing in browsers which support it. 3480 * 3481 * @link http://blogs.msdn.com/ie/archive/2008/07/02/ie8-security-part-v-comprehensive-protection.aspx 3482 * @link http://src.chromium.org/viewvc/chrome?view=rev&revision=6985 3483 * 3484 * @since 3.0.0 3485 * @return none 3486 */ 3487 function send_nosniff_header() { 3488 @header( 'X-Content-Type-Options: nosniff' ); 3489 } 3490 3491 /** 3492 * Returns a MySQL expression for selecting the week number based on the start_of_week option. 3493 * 3494 * @internal 3495 * @since 3.0.0 3496 * @param string $column 3497 * @return string 3498 */ 3499 function _wp_mysql_week( $column ) { 3500 switch ( $start_of_week = (int) get_option( 'start_of_week' ) ) { 3501 default : 3502 case 0 : 3503 return "WEEK( $column, 0 )"; 3504 case 1 : 3505 return "WEEK( $column, 1 )"; 3506 case 2 : 3507 case 3 : 3508 case 4 : 3509 case 5 : 3510 case 6 : 3511 return "WEEK( DATE_SUB( $column, INTERVAL $start_of_week DAY ), 0 )"; 3512 } 3513 } 3514 3515 /** 3516 * Finds hierarchy loops using a callback function that maps object IDs to parent IDs. 3517 * 3518 * @since 3.1.0 3519 * @access private 3520 * 3521 * @param callback $callback function that accepts ( ID, $callback_args ) and outputs parent_ID 3522 * @param int $start The ID to start the loop check at 3523 * @param int $start_parent the parent_ID of $start to use instead of calling $callback( $start ). Use null to always use $callback 3524 * @param array $callback_args optional additional arguments to send to $callback 3525 * @return array IDs of all members of loop 3526 */ 3527 function wp_find_hierarchy_loop( $callback, $start, $start_parent, $callback_args = array() ) { 3528 $override = is_null( $start_parent ) ? array() : array( $start => $start_parent ); 3529 3530 if ( !$arbitrary_loop_member = wp_find_hierarchy_loop_tortoise_hare( $callback, $start, $override, $callback_args ) ) 3531 return array(); 3532 3533 return wp_find_hierarchy_loop_tortoise_hare( $callback, $arbitrary_loop_member, $override, $callback_args, true ); 3534 } 3535 3536 /** 3537 * Uses the "The Tortoise and the Hare" algorithm to detect loops. 3538 * 3539 * For every step of the algorithm, the hare takes two steps and the tortoise one. 3540 * If the hare ever laps the tortoise, there must be a loop. 3541 * 3542 * @since 3.1.0 3543 * @access private 3544 * 3545 * @param callback $callback function that accepts ( ID, callback_arg, ... ) and outputs parent_ID 3546 * @param int $start The ID to start the loop check at 3547 * @param array $override an array of ( ID => parent_ID, ... ) to use instead of $callback 3548 * @param array $callback_args optional additional arguments to send to $callback 3549 * @param bool $_return_loop Return loop members or just detect presence of loop? 3550 * Only set to true if you already know the given $start is part of a loop 3551 * (otherwise the returned array might include branches) 3552 * @return mixed scalar ID of some arbitrary member of the loop, or array of IDs of all members of loop if $_return_loop 3553 */ 3554 function wp_find_hierarchy_loop_tortoise_hare( $callback, $start, $override = array(), $callback_args = array(), $_return_loop = false ) { 3555 $tortoise = $hare = $evanescent_hare = $start; 3556 $return = array(); 3557 3558 // Set evanescent_hare to one past hare 3559 // Increment hare two steps 3560 while ( 3561 $tortoise 3562 && 3563 ( $evanescent_hare = isset( $override[$hare] ) ? $override[$hare] : call_user_func_array( $callback, array_merge( array( $hare ), $callback_args ) ) ) 3564 && 3565 ( $hare = isset( $override[$evanescent_hare] ) ? $override[$evanescent_hare] : call_user_func_array( $callback, array_merge( array( $evanescent_hare ), $callback_args ) ) ) 3566 ) { 3567 if ( $_return_loop ) 3568 $return[$tortoise] = $return[$evanescent_hare] = $return[$hare] = true; 3569 3570 // tortoise got lapped - must be a loop 3571 if ( $tortoise == $evanescent_hare || $tortoise == $hare ) 3572 return $_return_loop ? $return : $tortoise; 3573 3574 // Increment tortoise by one step 3575 $tortoise = isset( $override[$tortoise] ) ? $override[$tortoise] : call_user_func_array( $callback, array_merge( array( $tortoise ), $callback_args ) ); 3576 } 3577 3578 return false; 3579 } 3580 3581 /** 3582 * Send a HTTP header to limit rendering of pages to same origin iframes. 3583 * 3584 * @link https://developer.mozilla.org/en/the_x-frame-options_response_header 3585 * 3586 * @since 3.1.3 3587 * @return none 3588 */ 3589 function send_frame_options_header() { 3590 @header( 'X-Frame-Options: SAMEORIGIN' ); 3591 } 3592 3593 /** 3594 * Retrieve a list of protocols to allow in HTML attributes. 3595 * 3596 * @since 3.3.0 3597 * @see wp_kses() 3598 * @see esc_url() 3599 * 3600 * @return array Array of allowed protocols 3601 */ 3602 function wp_allowed_protocols() { 3603 static $protocols; 3604 3605 if ( empty( $protocols ) ) { 3606 $protocols = array( 'http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet', 'mms', 'rtsp', 'svn' ); 3607 $protocols = apply_filters( 'kses_allowed_protocols', $protocols ); 3608 } 3609 3610 return $protocols; 3611 } 3612 3613 /** 3614 * Return a comma separated string of functions that have been called to get to the current point in code. 3615 * 3616 * @link http://core.trac.wordpress.org/ticket/19589 3617 * @since 3.4 3618 * 3619 * @param string $ignore_class A class to ignore all function calls within - useful when you want to just give info about the callee 3620 * @param int $skip_frames A number of stack frames to skip - useful for unwinding back to the source of the issue 3621 * @param bool $pretty Whether or not you want a comma separated string or raw array returned 3622 * @return string|array Either a string containing a reversed comma separated trace or an array of individual calls. 3623 */ 3624 function wp_debug_backtrace_summary( $ignore_class = null, $skip_frames = 0, $pretty = true ) { 3625 $trace = debug_backtrace( false ); 3626 $caller = array(); 3627 $check_class = ! is_null( $ignore_class ); 3628 $skip_frames++; // skip this function 3629 3630 foreach ( $trace as $call ) { 3631 if ( $skip_frames > 0 ) { 3632 $skip_frames--; 3633 } elseif ( isset( $call['class'] ) ) { 3634 if ( $check_class && $ignore_class == $call['class'] ) 3635 continue; // Filter out calls 3636 3637 $caller[] = "{$call['class']}{$call['type']}{$call['function']}"; 3638 } else { 3639 if ( in_array( $call['function'], array( 'do_action', 'apply_filters' ) ) ) { 3640 $caller[] = "{$call['function']}('{$call['args'][0]}')"; 3641 } elseif ( in_array( $call['function'], array( 'include', 'include_once', 'require', 'require_once' ) ) ) { 3642 $caller[] = $call['function'] . "('" . str_replace( array( WP_CONTENT_DIR, ABSPATH ) , '', $call['args'][0] ) . "')"; 3643 } else { 3644 $caller[] = $call['function']; 3645 } 3646 } 3647 } 3648 if ( $pretty ) 3649 return join( ', ', array_reverse( $caller ) ); 3650 else 3651 return $caller; 3652 } 3653 3654 /** 3655 * Retrieve ids that are not already present in the cache 3656 * 3657 * @since 3.4.0 3658 * 3659 * @param array $object_ids ID list 3660 * @param string $cache_key The cache bucket to check against 3661 * 3662 * @return array 3663 */ 3664 function _get_non_cached_ids( $object_ids, $cache_key ) { 3665 $clean = array(); 3666 foreach ( $object_ids as $id ) { 3667 $id = (int) $id; 3668 if ( !wp_cache_get( $id, $cache_key ) ) { 3669 $clean[] = $id; 3670 } 3671 } 3672 3673 return $clean; 3674 } 3675 3676 /** 3677 * Test if the current device has the capability to upload files. 3678 * 3679 * @since 3.4.0 3680 * @access private 3681 * 3682 * @return bool true|false 3683 */ 3684 function _device_can_upload() { 3685 if ( ! wp_is_mobile() ) 3686 return true; 3687 3688 $ua = $_SERVER['HTTP_USER_AGENT']; 3689 3690 if ( strpos($ua, 'iPhone') !== false 3691 || strpos($ua, 'iPad') !== false 3692 || strpos($ua, 'iPod') !== false ) { 3693 return false; 3694 } else { 3695 return true; 3696 } 3697 } 3698
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| Generated: Sat May 26 08:20:01 2012 | Cross-referenced by PHPXref 0.7 |