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1 <?php 2 /** 3 * MagpieRSS: a simple RSS integration tool 4 * 5 * A compiled file for RSS syndication 6 * 7 * @author Kellan Elliott-McCrea <kellan@protest.net> 8 * @version 0.51 9 * @license GPL 10 * 11 * @package External 12 * @subpackage MagpieRSS 13 * @deprecated 3.0.0 Use SimplePie instead. 14 */ 15 16 /** 17 * Deprecated. Use SimplePie (class-simplepie.php) instead. 18 */ 19 _deprecated_file( basename( __FILE__ ), '3.0', WPINC . '/class-simplepie.php' ); 20 21 /** 22 * Fires before MagpieRSS is loaded, to optionally replace it. 23 * 24 * @since 2.3.0 25 * @deprecated 3.0.0 26 */ 27 do_action( 'load_feed_engine' ); 28 29 /** RSS feed constant. */ 30 define('RSS', 'RSS'); 31 define('ATOM', 'Atom'); 32 define('MAGPIE_USER_AGENT', 'WordPress/' . $GLOBALS['wp_version']); 33 34 class MagpieRSS { 35 var $parser; 36 var $current_item = array(); // item currently being parsed 37 var $items = array(); // collection of parsed items 38 var $channel = array(); // hash of channel fields 39 var $textinput = array(); 40 var $image = array(); 41 var $feed_type; 42 var $feed_version; 43 44 // parser variables 45 var $stack = array(); // parser stack 46 var $inchannel = false; 47 var $initem = false; 48 var $incontent = false; // if in Atom <content mode="xml"> field 49 var $intextinput = false; 50 var $inimage = false; 51 var $current_field = ''; 52 var $current_namespace = false; 53 54 //var $ERROR = ""; 55 56 var $_CONTENT_CONSTRUCTS = array('content', 'summary', 'info', 'title', 'tagline', 'copyright'); 57 58 function MagpieRSS ($source) { 59 60 # if PHP xml isn't compiled in, die 61 # 62 if ( !function_exists('xml_parser_create') ) 63 trigger_error( "Failed to load PHP's XML Extension. http://www.php.net/manual/en/ref.xml.php" ); 64 65 $parser = @xml_parser_create(); 66 67 if ( !is_resource($parser) ) 68 trigger_error( "Failed to create an instance of PHP's XML parser. http://www.php.net/manual/en/ref.xml.php"); 69 70 $this->parser = $parser; 71 72 # pass in parser, and a reference to this object 73 # set up handlers 74 # 75 xml_set_object( $this->parser, $this ); 76 xml_set_element_handler($this->parser, 77 'feed_start_element', 'feed_end_element' ); 78 79 xml_set_character_data_handler( $this->parser, 'feed_cdata' ); 80 81 $status = xml_parse( $this->parser, $source ); 82 83 if (! $status ) { 84 $errorcode = xml_get_error_code( $this->parser ); 85 if ( $errorcode != XML_ERROR_NONE ) { 86 $xml_error = xml_error_string( $errorcode ); 87 $error_line = xml_get_current_line_number($this->parser); 88 $error_col = xml_get_current_column_number($this->parser); 89 $errormsg = "$xml_error at line $error_line, column $error_col"; 90 91 $this->error( $errormsg ); 92 } 93 } 94 95 xml_parser_free( $this->parser ); 96 97 $this->normalize(); 98 } 99 100 function feed_start_element($p, $element, &$attrs) { 101 $el = $element = strtolower($element); 102 $attrs = array_change_key_case($attrs, CASE_LOWER); 103 104 // check for a namespace, and split if found 105 $ns = false; 106 if ( strpos( $element, ':' ) ) { 107 list($ns, $el) = split( ':', $element, 2); 108 } 109 if ( $ns and $ns != 'rdf' ) { 110 $this->current_namespace = $ns; 111 } 112 113 # if feed type isn't set, then this is first element of feed 114 # identify feed from root element 115 # 116 if (!isset($this->feed_type) ) { 117 if ( $el == 'rdf' ) { 118 $this->feed_type = RSS; 119 $this->feed_version = '1.0'; 120 } 121 elseif ( $el == 'rss' ) { 122 $this->feed_type = RSS; 123 $this->feed_version = $attrs['version']; 124 } 125 elseif ( $el == 'feed' ) { 126 $this->feed_type = ATOM; 127 $this->feed_version = $attrs['version']; 128 $this->inchannel = true; 129 } 130 return; 131 } 132 133 if ( $el == 'channel' ) 134 { 135 $this->inchannel = true; 136 } 137 elseif ($el == 'item' or $el == 'entry' ) 138 { 139 $this->initem = true; 140 if ( isset($attrs['rdf:about']) ) { 141 $this->current_item['about'] = $attrs['rdf:about']; 142 } 143 } 144 145 // if we're in the default namespace of an RSS feed, 146 // record textinput or image fields 147 elseif ( 148 $this->feed_type == RSS and 149 $this->current_namespace == '' and 150 $el == 'textinput' ) 151 { 152 $this->intextinput = true; 153 } 154 155 elseif ( 156 $this->feed_type == RSS and 157 $this->current_namespace == '' and 158 $el == 'image' ) 159 { 160 $this->inimage = true; 161 } 162 163 # handle atom content constructs 164 elseif ( $this->feed_type == ATOM and in_array($el, $this->_CONTENT_CONSTRUCTS) ) 165 { 166 // avoid clashing w/ RSS mod_content 167 if ($el == 'content' ) { 168 $el = 'atom_content'; 169 } 170 171 $this->incontent = $el; 172 173 } 174 175 // if inside an Atom content construct (e.g. content or summary) field treat tags as text 176 elseif ($this->feed_type == ATOM and $this->incontent ) 177 { 178 // if tags are inlined, then flatten 179 $attrs_str = join(' ', 180 array_map(array('MagpieRSS', 'map_attrs'), 181 array_keys($attrs), 182 array_values($attrs) ) ); 183 184 $this->append_content( "<$element $attrs_str>" ); 185 186 array_unshift( $this->stack, $el ); 187 } 188 189 // Atom support many links per containging element. 190 // Magpie treats link elements of type rel='alternate' 191 // as being equivalent to RSS's simple link element. 192 // 193 elseif ($this->feed_type == ATOM and $el == 'link' ) 194 { 195 if ( isset($attrs['rel']) and $attrs['rel'] == 'alternate' ) 196 { 197 $link_el = 'link'; 198 } 199 else { 200 $link_el = 'link_' . $attrs['rel']; 201 } 202 203 $this->append($link_el, $attrs['href']); 204 } 205 // set stack[0] to current element 206 else { 207 array_unshift($this->stack, $el); 208 } 209 } 210 211 function feed_cdata ($p, $text) { 212 213 if ($this->feed_type == ATOM and $this->incontent) 214 { 215 $this->append_content( $text ); 216 } 217 else { 218 $current_el = join('_', array_reverse($this->stack)); 219 $this->append($current_el, $text); 220 } 221 } 222 223 function feed_end_element ($p, $el) { 224 $el = strtolower($el); 225 226 if ( $el == 'item' or $el == 'entry' ) 227 { 228 $this->items[] = $this->current_item; 229 $this->current_item = array(); 230 $this->initem = false; 231 } 232 elseif ($this->feed_type == RSS and $this->current_namespace == '' and $el == 'textinput' ) 233 { 234 $this->intextinput = false; 235 } 236 elseif ($this->feed_type == RSS and $this->current_namespace == '' and $el == 'image' ) 237 { 238 $this->inimage = false; 239 } 240 elseif ($this->feed_type == ATOM and in_array($el, $this->_CONTENT_CONSTRUCTS) ) 241 { 242 $this->incontent = false; 243 } 244 elseif ($el == 'channel' or $el == 'feed' ) 245 { 246 $this->inchannel = false; 247 } 248 elseif ($this->feed_type == ATOM and $this->incontent ) { 249 // balance tags properly 250 // note: i don't think this is actually neccessary 251 if ( $this->stack[0] == $el ) 252 { 253 $this->append_content("</$el>"); 254 } 255 else { 256 $this->append_content("<$el />"); 257 } 258 259 array_shift( $this->stack ); 260 } 261 else { 262 array_shift( $this->stack ); 263 } 264 265 $this->current_namespace = false; 266 } 267 268 function concat (&$str1, $str2="") { 269 if (!isset($str1) ) { 270 $str1=""; 271 } 272 $str1 .= $str2; 273 } 274 275 function append_content($text) { 276 if ( $this->initem ) { 277 $this->concat( $this->current_item[ $this->incontent ], $text ); 278 } 279 elseif ( $this->inchannel ) { 280 $this->concat( $this->channel[ $this->incontent ], $text ); 281 } 282 } 283 284 // smart append - field and namespace aware 285 function append($el, $text) { 286 if (!$el) { 287 return; 288 } 289 if ( $this->current_namespace ) 290 { 291 if ( $this->initem ) { 292 $this->concat( 293 $this->current_item[ $this->current_namespace ][ $el ], $text); 294 } 295 elseif ($this->inchannel) { 296 $this->concat( 297 $this->channel[ $this->current_namespace][ $el ], $text ); 298 } 299 elseif ($this->intextinput) { 300 $this->concat( 301 $this->textinput[ $this->current_namespace][ $el ], $text ); 302 } 303 elseif ($this->inimage) { 304 $this->concat( 305 $this->image[ $this->current_namespace ][ $el ], $text ); 306 } 307 } 308 else { 309 if ( $this->initem ) { 310 $this->concat( 311 $this->current_item[ $el ], $text); 312 } 313 elseif ($this->intextinput) { 314 $this->concat( 315 $this->textinput[ $el ], $text ); 316 } 317 elseif ($this->inimage) { 318 $this->concat( 319 $this->image[ $el ], $text ); 320 } 321 elseif ($this->inchannel) { 322 $this->concat( 323 $this->channel[ $el ], $text ); 324 } 325 326 } 327 } 328 329 function normalize () { 330 // if atom populate rss fields 331 if ( $this->is_atom() ) { 332 $this->channel['descripton'] = $this->channel['tagline']; 333 for ( $i = 0; $i < count($this->items); $i++) { 334 $item = $this->items[$i]; 335 if ( isset($item['summary']) ) 336 $item['description'] = $item['summary']; 337 if ( isset($item['atom_content'])) 338 $item['content']['encoded'] = $item['atom_content']; 339 340 $this->items[$i] = $item; 341 } 342 } 343 elseif ( $this->is_rss() ) { 344 $this->channel['tagline'] = $this->channel['description']; 345 for ( $i = 0; $i < count($this->items); $i++) { 346 $item = $this->items[$i]; 347 if ( isset($item['description'])) 348 $item['summary'] = $item['description']; 349 if ( isset($item['content']['encoded'] ) ) 350 $item['atom_content'] = $item['content']['encoded']; 351 352 $this->items[$i] = $item; 353 } 354 } 355 } 356 357 function is_rss () { 358 if ( $this->feed_type == RSS ) { 359 return $this->feed_version; 360 } 361 else { 362 return false; 363 } 364 } 365 366 function is_atom() { 367 if ( $this->feed_type == ATOM ) { 368 return $this->feed_version; 369 } 370 else { 371 return false; 372 } 373 } 374 375 function map_attrs($k, $v) { 376 return "$k=\"$v\""; 377 } 378 379 function error( $errormsg, $lvl = E_USER_WARNING ) { 380 // append PHP's error message if track_errors enabled 381 if ( isset($php_errormsg) ) { 382 $errormsg .= " ($php_errormsg)"; 383 } 384 if ( MAGPIE_DEBUG ) { 385 trigger_error( $errormsg, $lvl); 386 } else { 387 error_log( $errormsg, 0); 388 } 389 } 390 391 } 392 393 if ( !function_exists('fetch_rss') ) : 394 /** 395 * Build Magpie object based on RSS from URL. 396 * 397 * @since 1.5.0 398 * @package External 399 * @subpackage MagpieRSS 400 * 401 * @param string $url URL to retrieve feed 402 * @return bool|MagpieRSS false on failure or MagpieRSS object on success. 403 */ 404 function fetch_rss ($url) { 405 // initialize constants 406 init(); 407 408 if ( !isset($url) ) { 409 // error("fetch_rss called without a url"); 410 return false; 411 } 412 413 // if cache is disabled 414 if ( !MAGPIE_CACHE_ON ) { 415 // fetch file, and parse it 416 $resp = _fetch_remote_file( $url ); 417 if ( is_success( $resp->status ) ) { 418 return _response_to_rss( $resp ); 419 } 420 else { 421 // error("Failed to fetch $url and cache is off"); 422 return false; 423 } 424 } 425 // else cache is ON 426 else { 427 // Flow 428 // 1. check cache 429 // 2. if there is a hit, make sure it's fresh 430 // 3. if cached obj fails freshness check, fetch remote 431 // 4. if remote fails, return stale object, or error 432 433 $cache = new RSSCache( MAGPIE_CACHE_DIR, MAGPIE_CACHE_AGE ); 434 435 if (MAGPIE_DEBUG and $cache->ERROR) { 436 debug($cache->ERROR, E_USER_WARNING); 437 } 438 439 $cache_status = 0; // response of check_cache 440 $request_headers = array(); // HTTP headers to send with fetch 441 $rss = 0; // parsed RSS object 442 $errormsg = 0; // errors, if any 443 444 if (!$cache->ERROR) { 445 // return cache HIT, MISS, or STALE 446 $cache_status = $cache->check_cache( $url ); 447 } 448 449 // if object cached, and cache is fresh, return cached obj 450 if ( $cache_status == 'HIT' ) { 451 $rss = $cache->get( $url ); 452 if ( isset($rss) and $rss ) { 453 $rss->from_cache = 1; 454 if ( MAGPIE_DEBUG > 1) { 455 debug("MagpieRSS: Cache HIT", E_USER_NOTICE); 456 } 457 return $rss; 458 } 459 } 460 461 // else attempt a conditional get 462 463 // set up headers 464 if ( $cache_status == 'STALE' ) { 465 $rss = $cache->get( $url ); 466 if ( isset($rss->etag) and $rss->last_modified ) { 467 $request_headers['If-None-Match'] = $rss->etag; 468 $request_headers['If-Last-Modified'] = $rss->last_modified; 469 } 470 } 471 472 $resp = _fetch_remote_file( $url, $request_headers ); 473 474 if (isset($resp) and $resp) { 475 if ($resp->status == '304' ) { 476 // we have the most current copy 477 if ( MAGPIE_DEBUG > 1) { 478 debug("Got 304 for $url"); 479 } 480 // reset cache on 304 (at minutillo insistent prodding) 481 $cache->set($url, $rss); 482 return $rss; 483 } 484 elseif ( is_success( $resp->status ) ) { 485 $rss = _response_to_rss( $resp ); 486 if ( $rss ) { 487 if (MAGPIE_DEBUG > 1) { 488 debug("Fetch successful"); 489 } 490 // add object to cache 491 $cache->set( $url, $rss ); 492 return $rss; 493 } 494 } 495 else { 496 $errormsg = "Failed to fetch $url. "; 497 if ( $resp->error ) { 498 # compensate for Snoopy's annoying habbit to tacking 499 # on '\n' 500 $http_error = substr($resp->error, 0, -2); 501 $errormsg .= "(HTTP Error: $http_error)"; 502 } 503 else { 504 $errormsg .= "(HTTP Response: " . $resp->response_code .')'; 505 } 506 } 507 } 508 else { 509 $errormsg = "Unable to retrieve RSS file for unknown reasons."; 510 } 511 512 // else fetch failed 513 514 // attempt to return cached object 515 if ($rss) { 516 if ( MAGPIE_DEBUG ) { 517 debug("Returning STALE object for $url"); 518 } 519 return $rss; 520 } 521 522 // else we totally failed 523 // error( $errormsg ); 524 525 return false; 526 527 } // end if ( !MAGPIE_CACHE_ON ) { 528 } // end fetch_rss() 529 endif; 530 531 /** 532 * Retrieve URL headers and content using WP HTTP Request API. 533 * 534 * @since 1.5.0 535 * @package External 536 * @subpackage MagpieRSS 537 * 538 * @param string $url URL to retrieve 539 * @param array $headers Optional. Headers to send to the URL. 540 * @return Snoopy style response 541 */ 542 function _fetch_remote_file($url, $headers = "" ) { 543 $resp = wp_safe_remote_request( $url, array( 'headers' => $headers, 'timeout' => MAGPIE_FETCH_TIME_OUT ) ); 544 if ( is_wp_error($resp) ) { 545 $error = array_shift($resp->errors); 546 547 $resp = new stdClass; 548 $resp->status = 500; 549 $resp->response_code = 500; 550 $resp->error = $error[0] . "\n"; //\n = Snoopy compatibility 551 return $resp; 552 } 553 554 // Snoopy returns headers unprocessed. 555 // Also note, WP_HTTP lowercases all keys, Snoopy did not. 556 $return_headers = array(); 557 foreach ( wp_remote_retrieve_headers( $resp ) as $key => $value ) { 558 if ( !is_array($value) ) { 559 $return_headers[] = "$key: $value"; 560 } else { 561 foreach ( $value as $v ) 562 $return_headers[] = "$key: $v"; 563 } 564 } 565 566 $response = new stdClass; 567 $response->status = wp_remote_retrieve_response_code( $resp ); 568 $response->response_code = wp_remote_retrieve_response_code( $resp ); 569 $response->headers = $return_headers; 570 $response->results = wp_remote_retrieve_body( $resp ); 571 572 return $response; 573 } 574 575 /** 576 * Retrieve 577 * 578 * @since 1.5.0 579 * @package External 580 * @subpackage MagpieRSS 581 * 582 * @param unknown_type $resp 583 * @return unknown 584 */ 585 function _response_to_rss ($resp) { 586 $rss = new MagpieRSS( $resp->results ); 587 588 // if RSS parsed successfully 589 if ( $rss && (!isset($rss->ERROR) || !$rss->ERROR) ) { 590 591 // find Etag, and Last-Modified 592 foreach( (array) $resp->headers as $h) { 593 // 2003-03-02 - Nicola Asuni (www.tecnick.com) - fixed bug "Undefined offset: 1" 594 if (strpos($h, ": ")) { 595 list($field, $val) = explode(": ", $h, 2); 596 } 597 else { 598 $field = $h; 599 $val = ""; 600 } 601 602 if ( $field == 'etag' ) { 603 $rss->etag = $val; 604 } 605 606 if ( $field == 'last-modified' ) { 607 $rss->last_modified = $val; 608 } 609 } 610 611 return $rss; 612 } // else construct error message 613 else { 614 $errormsg = "Failed to parse RSS file."; 615 616 if ($rss) { 617 $errormsg .= " (" . $rss->ERROR . ")"; 618 } 619 // error($errormsg); 620 621 return false; 622 } // end if ($rss and !$rss->error) 623 } 624 625 /** 626 * Set up constants with default values, unless user overrides. 627 * 628 * @since 1.5.0 629 * @package External 630 * @subpackage MagpieRSS 631 */ 632 function init () { 633 if ( defined('MAGPIE_INITALIZED') ) { 634 return; 635 } 636 else { 637 define('MAGPIE_INITALIZED', 1); 638 } 639 640 if ( !defined('MAGPIE_CACHE_ON') ) { 641 define('MAGPIE_CACHE_ON', 1); 642 } 643 644 if ( !defined('MAGPIE_CACHE_DIR') ) { 645 define('MAGPIE_CACHE_DIR', './cache'); 646 } 647 648 if ( !defined('MAGPIE_CACHE_AGE') ) { 649 define('MAGPIE_CACHE_AGE', 60*60); // one hour 650 } 651 652 if ( !defined('MAGPIE_CACHE_FRESH_ONLY') ) { 653 define('MAGPIE_CACHE_FRESH_ONLY', 0); 654 } 655 656 if ( !defined('MAGPIE_DEBUG') ) { 657 define('MAGPIE_DEBUG', 0); 658 } 659 660 if ( !defined('MAGPIE_USER_AGENT') ) { 661 $ua = 'WordPress/' . $GLOBALS['wp_version']; 662 663 if ( MAGPIE_CACHE_ON ) { 664 $ua = $ua . ')'; 665 } 666 else { 667 $ua = $ua . '; No cache)'; 668 } 669 670 define('MAGPIE_USER_AGENT', $ua); 671 } 672 673 if ( !defined('MAGPIE_FETCH_TIME_OUT') ) { 674 define('MAGPIE_FETCH_TIME_OUT', 2); // 2 second timeout 675 } 676 677 // use gzip encoding to fetch rss files if supported? 678 if ( !defined('MAGPIE_USE_GZIP') ) { 679 define('MAGPIE_USE_GZIP', true); 680 } 681 } 682 683 function is_info ($sc) { 684 return $sc >= 100 && $sc < 200; 685 } 686 687 function is_success ($sc) { 688 return $sc >= 200 && $sc < 300; 689 } 690 691 function is_redirect ($sc) { 692 return $sc >= 300 && $sc < 400; 693 } 694 695 function is_error ($sc) { 696 return $sc >= 400 && $sc < 600; 697 } 698 699 function is_client_error ($sc) { 700 return $sc >= 400 && $sc < 500; 701 } 702 703 function is_server_error ($sc) { 704 return $sc >= 500 && $sc < 600; 705 } 706 707 class RSSCache { 708 var $BASE_CACHE; // where the cache files are stored 709 var $MAX_AGE = 43200; // when are files stale, default twelve hours 710 var $ERROR = ''; // accumulate error messages 711 712 function RSSCache ($base='', $age='') { 713 $this->BASE_CACHE = WP_CONTENT_DIR . '/cache'; 714 if ( $base ) { 715 $this->BASE_CACHE = $base; 716 } 717 if ( $age ) { 718 $this->MAX_AGE = $age; 719 } 720 721 } 722 723 /*=======================================================================*\ 724 Function: set 725 Purpose: add an item to the cache, keyed on url 726 Input: url from wich the rss file was fetched 727 Output: true on sucess 728 \*=======================================================================*/ 729 function set ($url, $rss) { 730 $cache_option = 'rss_' . $this->file_name( $url ); 731 732 set_transient($cache_option, $rss, $this->MAX_AGE); 733 734 return $cache_option; 735 } 736 737 /*=======================================================================*\ 738 Function: get 739 Purpose: fetch an item from the cache 740 Input: url from wich the rss file was fetched 741 Output: cached object on HIT, false on MISS 742 \*=======================================================================*/ 743 function get ($url) { 744 $this->ERROR = ""; 745 $cache_option = 'rss_' . $this->file_name( $url ); 746 747 if ( ! $rss = get_transient( $cache_option ) ) { 748 $this->debug( 749 "Cache doesn't contain: $url (cache option: $cache_option)" 750 ); 751 return 0; 752 } 753 754 return $rss; 755 } 756 757 /*=======================================================================*\ 758 Function: check_cache 759 Purpose: check a url for membership in the cache 760 and whether the object is older then MAX_AGE (ie. STALE) 761 Input: url from wich the rss file was fetched 762 Output: cached object on HIT, false on MISS 763 \*=======================================================================*/ 764 function check_cache ( $url ) { 765 $this->ERROR = ""; 766 $cache_option = 'rss_' . $this->file_name( $url ); 767 768 if ( get_transient($cache_option) ) { 769 // object exists and is current 770 return 'HIT'; 771 } else { 772 // object does not exist 773 return 'MISS'; 774 } 775 } 776 777 /*=======================================================================*\ 778 Function: serialize 779 \*=======================================================================*/ 780 function serialize ( $rss ) { 781 return serialize( $rss ); 782 } 783 784 /*=======================================================================*\ 785 Function: unserialize 786 \*=======================================================================*/ 787 function unserialize ( $data ) { 788 return unserialize( $data ); 789 } 790 791 /*=======================================================================*\ 792 Function: file_name 793 Purpose: map url to location in cache 794 Input: url from wich the rss file was fetched 795 Output: a file name 796 \*=======================================================================*/ 797 function file_name ($url) { 798 return md5( $url ); 799 } 800 801 /*=======================================================================*\ 802 Function: error 803 Purpose: register error 804 \*=======================================================================*/ 805 function error ($errormsg, $lvl=E_USER_WARNING) { 806 // append PHP's error message if track_errors enabled 807 if ( isset($php_errormsg) ) { 808 $errormsg .= " ($php_errormsg)"; 809 } 810 $this->ERROR = $errormsg; 811 if ( MAGPIE_DEBUG ) { 812 trigger_error( $errormsg, $lvl); 813 } 814 else { 815 error_log( $errormsg, 0); 816 } 817 } 818 function debug ($debugmsg, $lvl=E_USER_NOTICE) { 819 if ( MAGPIE_DEBUG ) { 820 $this->error("MagpieRSS [debug] $debugmsg", $lvl); 821 } 822 } 823 } 824 825 if ( !function_exists('parse_w3cdtf') ) : 826 function parse_w3cdtf ( $date_str ) { 827 828 # regex to match wc3dtf 829 $pat = "/(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2})(:(\d{2}))?(?:([-+])(\d{2}):?(\d{2})|(Z))?/"; 830 831 if ( preg_match( $pat, $date_str, $match ) ) { 832 list( $year, $month, $day, $hours, $minutes, $seconds) = 833 array( $match[1], $match[2], $match[3], $match[4], $match[5], $match[7]); 834 835 # calc epoch for current date assuming GMT 836 $epoch = gmmktime( $hours, $minutes, $seconds, $month, $day, $year); 837 838 $offset = 0; 839 if ( $match[11] == 'Z' ) { 840 # zulu time, aka GMT 841 } 842 else { 843 list( $tz_mod, $tz_hour, $tz_min ) = 844 array( $match[8], $match[9], $match[10]); 845 846 # zero out the variables 847 if ( ! $tz_hour ) { $tz_hour = 0; } 848 if ( ! $tz_min ) { $tz_min = 0; } 849 850 $offset_secs = (($tz_hour*60)+$tz_min)*60; 851 852 # is timezone ahead of GMT? then subtract offset 853 # 854 if ( $tz_mod == '+' ) { 855 $offset_secs = $offset_secs * -1; 856 } 857 858 $offset = $offset_secs; 859 } 860 $epoch = $epoch + $offset; 861 return $epoch; 862 } 863 else { 864 return -1; 865 } 866 } 867 endif; 868 869 if ( !function_exists('wp_rss') ) : 870 /** 871 * Display all RSS items in a HTML ordered list. 872 * 873 * @since 1.5.0 874 * @package External 875 * @subpackage MagpieRSS 876 * 877 * @param string $url URL of feed to display. Will not auto sense feed URL. 878 * @param int $num_items Optional. Number of items to display, default is all. 879 */ 880 function wp_rss( $url, $num_items = -1 ) { 881 if ( $rss = fetch_rss( $url ) ) { 882 echo '<ul>'; 883 884 if ( $num_items !== -1 ) { 885 $rss->items = array_slice( $rss->items, 0, $num_items ); 886 } 887 888 foreach ( (array) $rss->items as $item ) { 889 printf( 890 '<li><a href="%1$s" title="%2$s">%3$s</a></li>', 891 esc_url( $item['link'] ), 892 esc_attr( strip_tags( $item['description'] ) ), 893 esc_html( $item['title'] ) 894 ); 895 } 896 897 echo '</ul>'; 898 } else { 899 _e( 'An error has occurred, which probably means the feed is down. Try again later.' ); 900 } 901 } 902 endif; 903 904 if ( !function_exists('get_rss') ) : 905 /** 906 * Display RSS items in HTML list items. 907 * 908 * You have to specify which HTML list you want, either ordered or unordered 909 * before using the function. You also have to specify how many items you wish 910 * to display. You can't display all of them like you can with wp_rss() 911 * function. 912 * 913 * @since 1.5.0 914 * @package External 915 * @subpackage MagpieRSS 916 * 917 * @param string $url URL of feed to display. Will not auto sense feed URL. 918 * @param int $num_items Optional. Number of items to display, default is all. 919 * @return bool False on failure. 920 */ 921 function get_rss ($url, $num_items = 5) { // Like get posts, but for RSS 922 $rss = fetch_rss($url); 923 if ( $rss ) { 924 $rss->items = array_slice($rss->items, 0, $num_items); 925 foreach ( (array) $rss->items as $item ) { 926 echo "<li>\n"; 927 echo "<a href='$item[link]' title='$item[description]'>"; 928 echo esc_html($item['title']); 929 echo "</a><br />\n"; 930 echo "</li>\n"; 931 } 932 } else { 933 return false; 934 } 935 } 936 endif;
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| Generated: Tue Mar 25 01:41:18 2014 | WordPress honlapkészítés: online1.hu |