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| /** | |
| * SimplePie | |
| * | |
| * A PHP-Based RSS and Atom Feed Framework. | |
| * Takes the hard work out of managing a complete RSS/Atom solution. | |
| * | |
| * Copyright (c) 2004-2016, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors | |
| * All rights reserved. | |
| * | |
| * Redistribution and use in source and binary forms, with or without modification, are | |
| * permitted provided that the following conditions are met: | |
| * | |
| * * Redistributions of source code must retain the above copyright notice, this list of | |
| * conditions and the following disclaimer. | |
| * | |
| * * Redistributions in binary form must reproduce the above copyright notice, this list | |
| * of conditions and the following disclaimer in the documentation and/or other materials | |
| * provided with the distribution. | |
| * | |
| * * Neither the name of the SimplePie Team nor the names of its contributors may be used | |
| * to endorse or promote products derived from this software without specific prior | |
| * written permission. | |
| * | |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS | |
| * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY | |
| * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS | |
| * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
| * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| * POSSIBILITY OF SUCH DAMAGE. | |
| * | |
| * @package SimplePie | |
| * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue | |
| * @author Ryan Parman | |
| * @author Sam Sneddon | |
| * @author Ryan McCue | |
| * @link http://simplepie.org/ SimplePie | |
| * @license http://www.opensource.org/licenses/bsd-license.php BSD License | |
| */ | |
| /** | |
| * Date Parser | |
| * | |
| * @package SimplePie | |
| * @subpackage Parsing | |
| */ | |
| class SimplePie_Parse_Date | |
| { | |
| /** | |
| * Input data | |
| * | |
| * @access protected | |
| * @var string | |
| */ | |
| var $date; | |
| /** | |
| * List of days, calendar day name => ordinal day number in the week | |
| * | |
| * @access protected | |
| * @var array | |
| */ | |
| var $day = array( | |
| // English | |
| 'mon' => 1, | |
| 'monday' => 1, | |
| 'tue' => 2, | |
| 'tuesday' => 2, | |
| 'wed' => 3, | |
| 'wednesday' => 3, | |
| 'thu' => 4, | |
| 'thursday' => 4, | |
| 'fri' => 5, | |
| 'friday' => 5, | |
| 'sat' => 6, | |
| 'saturday' => 6, | |
| 'sun' => 7, | |
| 'sunday' => 7, | |
| // Dutch | |
| 'maandag' => 1, | |
| 'dinsdag' => 2, | |
| 'woensdag' => 3, | |
| 'donderdag' => 4, | |
| 'vrijdag' => 5, | |
| 'zaterdag' => 6, | |
| 'zondag' => 7, | |
| // French | |
| 'lundi' => 1, | |
| 'mardi' => 2, | |
| 'mercredi' => 3, | |
| 'jeudi' => 4, | |
| 'vendredi' => 5, | |
| 'samedi' => 6, | |
| 'dimanche' => 7, | |
| // German | |
| 'montag' => 1, | |
| 'mo' => 1, | |
| 'dienstag' => 2, | |
| 'di' => 2, | |
| 'mittwoch' => 3, | |
| 'mi' => 3, | |
| 'donnerstag' => 4, | |
| 'do' => 4, | |
| 'freitag' => 5, | |
| 'fr' => 5, | |
| 'samstag' => 6, | |
| 'sa' => 6, | |
| 'sonnabend' => 6, | |
| // AFAIK no short form for sonnabend | |
| 'so' => 7, | |
| 'sonntag' => 7, | |
| // Italian | |
| 'lunedì' => 1, | |
| 'martedì' => 2, | |
| 'mercoledì' => 3, | |
| 'giovedì' => 4, | |
| 'venerdì' => 5, | |
| 'sabato' => 6, | |
| 'domenica' => 7, | |
| // Spanish | |
| 'lunes' => 1, | |
| 'martes' => 2, | |
| 'miércoles' => 3, | |
| 'jueves' => 4, | |
| 'viernes' => 5, | |
| 'sábado' => 6, | |
| 'domingo' => 7, | |
| // Finnish | |
| 'maanantai' => 1, | |
| 'tiistai' => 2, | |
| 'keskiviikko' => 3, | |
| 'torstai' => 4, | |
| 'perjantai' => 5, | |
| 'lauantai' => 6, | |
| 'sunnuntai' => 7, | |
| // Hungarian | |
| 'hétfő' => 1, | |
| 'kedd' => 2, | |
| 'szerda' => 3, | |
| 'csütörtok' => 4, | |
| 'péntek' => 5, | |
| 'szombat' => 6, | |
| 'vasárnap' => 7, | |
| // Greek | |
| 'Δευ' => 1, | |
| 'Τρι' => 2, | |
| 'Τετ' => 3, | |
| 'Πεμ' => 4, | |
| 'Παρ' => 5, | |
| 'Σαβ' => 6, | |
| 'Κυρ' => 7, | |
| // Russian | |
| 'Пн.' => 1, | |
| 'Вт.' => 2, | |
| 'Ср.' => 3, | |
| 'Чт.' => 4, | |
| 'Пт.' => 5, | |
| 'Сб.' => 6, | |
| 'Вс.' => 7, | |
| ); | |
| /** | |
| * List of months, calendar month name => calendar month number | |
| * | |
| * @access protected | |
| * @var array | |
| */ | |
| var $month = array( | |
| // English | |
| 'jan' => 1, | |
| 'january' => 1, | |
| 'feb' => 2, | |
| 'february' => 2, | |
| 'mar' => 3, | |
| 'march' => 3, | |
| 'apr' => 4, | |
| 'april' => 4, | |
| 'may' => 5, | |
| // No long form of May | |
| 'jun' => 6, | |
| 'june' => 6, | |
| 'jul' => 7, | |
| 'july' => 7, | |
| 'aug' => 8, | |
| 'august' => 8, | |
| 'sep' => 9, | |
| 'september' => 9, | |
| 'oct' => 10, | |
| 'october' => 10, | |
| 'nov' => 11, | |
| 'november' => 11, | |
| 'dec' => 12, | |
| 'december' => 12, | |
| // Dutch | |
| 'januari' => 1, | |
| 'februari' => 2, | |
| 'maart' => 3, | |
| 'april' => 4, | |
| 'mei' => 5, | |
| 'juni' => 6, | |
| 'juli' => 7, | |
| 'augustus' => 8, | |
| 'september' => 9, | |
| 'oktober' => 10, | |
| 'november' => 11, | |
| 'december' => 12, | |
| // French | |
| 'janvier' => 1, | |
| 'février' => 2, | |
| 'mars' => 3, | |
| 'avril' => 4, | |
| 'mai' => 5, | |
| 'juin' => 6, | |
| 'juillet' => 7, | |
| 'août' => 8, | |
| 'septembre' => 9, | |
| 'octobre' => 10, | |
| 'novembre' => 11, | |
| 'décembre' => 12, | |
| // German | |
| 'januar' => 1, | |
| 'jan' => 1, | |
| 'februar' => 2, | |
| 'feb' => 2, | |
| 'märz' => 3, | |
| 'mär' => 3, | |
| 'april' => 4, | |
| 'apr' => 4, | |
| 'mai' => 5, // no short form for may | |
| 'juni' => 6, | |
| 'jun' => 6, | |
| 'juli' => 7, | |
| 'jul' => 7, | |
| 'august' => 8, | |
| 'aug' => 8, | |
| 'september' => 9, | |
| 'sep' => 9, | |
| 'oktober' => 10, | |
| 'okt' => 10, | |
| 'november' => 11, | |
| 'nov' => 11, | |
| 'dezember' => 12, | |
| 'dez' => 12, | |
| // Italian | |
| 'gennaio' => 1, | |
| 'febbraio' => 2, | |
| 'marzo' => 3, | |
| 'aprile' => 4, | |
| 'maggio' => 5, | |
| 'giugno' => 6, | |
| 'luglio' => 7, | |
| 'agosto' => 8, | |
| 'settembre' => 9, | |
| 'ottobre' => 10, | |
| 'novembre' => 11, | |
| 'dicembre' => 12, | |
| // Spanish | |
| 'enero' => 1, | |
| 'febrero' => 2, | |
| 'marzo' => 3, | |
| 'abril' => 4, | |
| 'mayo' => 5, | |
| 'junio' => 6, | |
| 'julio' => 7, | |
| 'agosto' => 8, | |
| 'septiembre' => 9, | |
| 'setiembre' => 9, | |
| 'octubre' => 10, | |
| 'noviembre' => 11, | |
| 'diciembre' => 12, | |
| // Finnish | |
| 'tammikuu' => 1, | |
| 'helmikuu' => 2, | |
| 'maaliskuu' => 3, | |
| 'huhtikuu' => 4, | |
| 'toukokuu' => 5, | |
| 'kesäkuu' => 6, | |
| 'heinäkuu' => 7, | |
| 'elokuu' => 8, | |
| 'suuskuu' => 9, | |
| 'lokakuu' => 10, | |
| 'marras' => 11, | |
| 'joulukuu' => 12, | |
| // Hungarian | |
| 'január' => 1, | |
| 'február' => 2, | |
| 'március' => 3, | |
| 'április' => 4, | |
| 'május' => 5, | |
| 'június' => 6, | |
| 'július' => 7, | |
| 'augusztus' => 8, | |
| 'szeptember' => 9, | |
| 'október' => 10, | |
| 'november' => 11, | |
| 'december' => 12, | |
| // Greek | |
| 'Ιαν' => 1, | |
| 'Φεβ' => 2, | |
| 'Μάώ' => 3, | |
| 'Μαώ' => 3, | |
| 'Απρ' => 4, | |
| 'Μάι' => 5, | |
| 'Μαϊ' => 5, | |
| 'Μαι' => 5, | |
| 'Ιούν' => 6, | |
| 'Ιον' => 6, | |
| 'Ιούλ' => 7, | |
| 'Ιολ' => 7, | |
| 'Αύγ' => 8, | |
| 'Αυγ' => 8, | |
| 'Σεπ' => 9, | |
| 'Οκτ' => 10, | |
| 'Νοέ' => 11, | |
| 'Δεκ' => 12, | |
| // Russian | |
| 'Янв' => 1, | |
| 'января' => 1, | |
| 'Фев' => 2, | |
| 'февраля' => 2, | |
| 'Мар' => 3, | |
| 'марта' => 3, | |
| 'Апр' => 4, | |
| 'апреля' => 4, | |
| 'Май' => 5, | |
| 'мая' => 5, | |
| 'Июн' => 6, | |
| 'июня' => 6, | |
| 'Июл' => 7, | |
| 'июля' => 7, | |
| 'Авг' => 8, | |
| 'августа' => 8, | |
| 'Сен' => 9, | |
| 'сентября' => 9, | |
| 'Окт' => 10, | |
| 'октября' => 10, | |
| 'Ноя' => 11, | |
| 'ноября' => 11, | |
| 'Дек' => 12, | |
| 'декабря' => 12, | |
| ); | |
| /** | |
| * List of timezones, abbreviation => offset from UTC | |
| * | |
| * @access protected | |
| * @var array | |
| */ | |
| var $timezone = array( | |
| 'ACDT' => 37800, | |
| 'ACIT' => 28800, | |
| 'ACST' => 34200, | |
| 'ACT' => -18000, | |
| 'ACWDT' => 35100, | |
| 'ACWST' => 31500, | |
| 'AEDT' => 39600, | |
| 'AEST' => 36000, | |
| 'AFT' => 16200, | |
| 'AKDT' => -28800, | |
| 'AKST' => -32400, | |
| 'AMDT' => 18000, | |
| 'AMT' => -14400, | |
| 'ANAST' => 46800, | |
| 'ANAT' => 43200, | |
| 'ART' => -10800, | |
| 'AZOST' => -3600, | |
| 'AZST' => 18000, | |
| 'AZT' => 14400, | |
| 'BIOT' => 21600, | |
| 'BIT' => -43200, | |
| 'BOT' => -14400, | |
| 'BRST' => -7200, | |
| 'BRT' => -10800, | |
| 'BST' => 3600, | |
| 'BTT' => 21600, | |
| 'CAST' => 18000, | |
| 'CAT' => 7200, | |
| 'CCT' => 23400, | |
| 'CDT' => -18000, | |
| 'CEDT' => 7200, | |
| 'CEST' => 7200, | |
| 'CET' => 3600, | |
| 'CGST' => -7200, | |
| 'CGT' => -10800, | |
| 'CHADT' => 49500, | |
| 'CHAST' => 45900, | |
| 'CIST' => -28800, | |
| 'CKT' => -36000, | |
| 'CLDT' => -10800, | |
| 'CLST' => -14400, | |
| 'COT' => -18000, | |
| 'CST' => -21600, | |
| 'CVT' => -3600, | |
| 'CXT' => 25200, | |
| 'DAVT' => 25200, | |
| 'DTAT' => 36000, | |
| 'EADT' => -18000, | |
| 'EAST' => -21600, | |
| 'EAT' => 10800, | |
| 'ECT' => -18000, | |
| 'EDT' => -14400, | |
| 'EEST' => 10800, | |
| 'EET' => 7200, | |
| 'EGT' => -3600, | |
| 'EKST' => 21600, | |
| 'EST' => -18000, | |
| 'FJT' => 43200, | |
| 'FKDT' => -10800, | |
| 'FKST' => -14400, | |
| 'FNT' => -7200, | |
| 'GALT' => -21600, | |
| 'GEDT' => 14400, | |
| 'GEST' => 10800, | |
| 'GFT' => -10800, | |
| 'GILT' => 43200, | |
| 'GIT' => -32400, | |
| 'GST' => 14400, | |
| 'GST' => -7200, | |
| 'GYT' => -14400, | |
| 'HAA' => -10800, | |
| 'HAC' => -18000, | |
| 'HADT' => -32400, | |
| 'HAE' => -14400, | |
| 'HAP' => -25200, | |
| 'HAR' => -21600, | |
| 'HAST' => -36000, | |
| 'HAT' => -9000, | |
| 'HAY' => -28800, | |
| 'HKST' => 28800, | |
| 'HMT' => 18000, | |
| 'HNA' => -14400, | |
| 'HNC' => -21600, | |
| 'HNE' => -18000, | |
| 'HNP' => -28800, | |
| 'HNR' => -25200, | |
| 'HNT' => -12600, | |
| 'HNY' => -32400, | |
| 'IRDT' => 16200, | |
| 'IRKST' => 32400, | |
| 'IRKT' => 28800, | |
| 'IRST' => 12600, | |
| 'JFDT' => -10800, | |
| 'JFST' => -14400, | |
| 'JST' => 32400, | |
| 'KGST' => 21600, | |
| 'KGT' => 18000, | |
| 'KOST' => 39600, | |
| 'KOVST' => 28800, | |
| 'KOVT' => 25200, | |
| 'KRAST' => 28800, | |
| 'KRAT' => 25200, | |
| 'KST' => 32400, | |
| 'LHDT' => 39600, | |
| 'LHST' => 37800, | |
| 'LINT' => 50400, | |
| 'LKT' => 21600, | |
| 'MAGST' => 43200, | |
| 'MAGT' => 39600, | |
| 'MAWT' => 21600, | |
| 'MDT' => -21600, | |
| 'MESZ' => 7200, | |
| 'MEZ' => 3600, | |
| 'MHT' => 43200, | |
| 'MIT' => -34200, | |
| 'MNST' => 32400, | |
| 'MSDT' => 14400, | |
| 'MSST' => 10800, | |
| 'MST' => -25200, | |
| 'MUT' => 14400, | |
| 'MVT' => 18000, | |
| 'MYT' => 28800, | |
| 'NCT' => 39600, | |
| 'NDT' => -9000, | |
| 'NFT' => 41400, | |
| 'NMIT' => 36000, | |
| 'NOVST' => 25200, | |
| 'NOVT' => 21600, | |
| 'NPT' => 20700, | |
| 'NRT' => 43200, | |
| 'NST' => -12600, | |
| 'NUT' => -39600, | |
| 'NZDT' => 46800, | |
| 'NZST' => 43200, | |
| 'OMSST' => 25200, | |
| 'OMST' => 21600, | |
| 'PDT' => -25200, | |
| 'PET' => -18000, | |
| 'PETST' => 46800, | |
| 'PETT' => 43200, | |
| 'PGT' => 36000, | |
| 'PHOT' => 46800, | |
| 'PHT' => 28800, | |
| 'PKT' => 18000, | |
| 'PMDT' => -7200, | |
| 'PMST' => -10800, | |
| 'PONT' => 39600, | |
| 'PST' => -28800, | |
| 'PWT' => 32400, | |
| 'PYST' => -10800, | |
| 'PYT' => -14400, | |
| 'RET' => 14400, | |
| 'ROTT' => -10800, | |
| 'SAMST' => 18000, | |
| 'SAMT' => 14400, | |
| 'SAST' => 7200, | |
| 'SBT' => 39600, | |
| 'SCDT' => 46800, | |
| 'SCST' => 43200, | |
| 'SCT' => 14400, | |
| 'SEST' => 3600, | |
| 'SGT' => 28800, | |
| 'SIT' => 28800, | |
| 'SRT' => -10800, | |
| 'SST' => -39600, | |
| 'SYST' => 10800, | |
| 'SYT' => 7200, | |
| 'TFT' => 18000, | |
| 'THAT' => -36000, | |
| 'TJT' => 18000, | |
| 'TKT' => -36000, | |
| 'TMT' => 18000, | |
| 'TOT' => 46800, | |
| 'TPT' => 32400, | |
| 'TRUT' => 36000, | |
| 'TVT' => 43200, | |
| 'TWT' => 28800, | |
| 'UYST' => -7200, | |
| 'UYT' => -10800, | |
| 'UZT' => 18000, | |
| 'VET' => -14400, | |
| 'VLAST' => 39600, | |
| 'VLAT' => 36000, | |
| 'VOST' => 21600, | |
| 'VUT' => 39600, | |
| 'WAST' => 7200, | |
| 'WAT' => 3600, | |
| 'WDT' => 32400, | |
| 'WEST' => 3600, | |
| 'WFT' => 43200, | |
| 'WIB' => 25200, | |
| 'WIT' => 32400, | |
| 'WITA' => 28800, | |
| 'WKST' => 18000, | |
| 'WST' => 28800, | |
| 'YAKST' => 36000, | |
| 'YAKT' => 32400, | |
| 'YAPT' => 36000, | |
| 'YEKST' => 21600, | |
| 'YEKT' => 18000, | |
| ); | |
| /** | |
| * Cached PCRE for SimplePie_Parse_Date::$day | |
| * | |
| * @access protected | |
| * @var string | |
| */ | |
| var $day_pcre; | |
| /** | |
| * Cached PCRE for SimplePie_Parse_Date::$month | |
| * | |
| * @access protected | |
| * @var string | |
| */ | |
| var $month_pcre; | |
| /** | |
| * Array of user-added callback methods | |
| * | |
| * @access private | |
| * @var array | |
| */ | |
| var $built_in = array(); | |
| /** | |
| * Array of user-added callback methods | |
| * | |
| * @access private | |
| * @var array | |
| */ | |
| var $user = array(); | |
| /** | |
| * Create new SimplePie_Parse_Date object, and set self::day_pcre, | |
| * self::month_pcre, and self::built_in | |
| * | |
| * @access private | |
| */ | |
| public function __construct() | |
| { | |
| $this->day_pcre = '(' . implode('|', array_keys($this->day)) . ')'; | |
| $this->month_pcre = '(' . implode('|', array_keys($this->month)) . ')'; | |
| static $cache; | |
| if (!isset($cache[get_class($this)])) | |
| { | |
| $all_methods = get_class_methods($this); | |
| foreach ($all_methods as $method) | |
| { | |
| if (strtolower(substr($method, 0, 5)) === 'date_') | |
| { | |
| $cache[get_class($this)][] = $method; | |
| } | |
| } | |
| } | |
| foreach ($cache[get_class($this)] as $method) | |
| { | |
| $this->built_in[] = $method; | |
| } | |
| } | |
| /** | |
| * Get the object | |
| * | |
| * @access public | |
| */ | |
| public static function get() | |
| { | |
| static $object; | |
| if (!$object) | |
| { | |
| $object = new SimplePie_Parse_Date; | |
| } | |
| return $object; | |
| } | |
| /** | |
| * Parse a date | |
| * | |
| * @final | |
| * @access public | |
| * @param string $date Date to parse | |
| * @return int Timestamp corresponding to date string, or false on failure | |
| */ | |
| public function parse($date) | |
| { | |
| foreach ($this->user as $method) | |
| { | |
| if (($returned = call_user_func($method, $date)) !== false) | |
| { | |
| return $returned; | |
| } | |
| } | |
| foreach ($this->built_in as $method) | |
| { | |
| if (($returned = call_user_func(array($this, $method), $date)) !== false) | |
| { | |
| return $returned; | |
| } | |
| } | |
| return false; | |
| } | |
| /** | |
| * Add a callback method to parse a date | |
| * | |
| * @final | |
| * @access public | |
| * @param callback $callback | |
| */ | |
| public function add_callback($callback) | |
| { | |
| if (is_callable($callback)) | |
| { | |
| $this->user[] = $callback; | |
| } | |
| else | |
| { | |
| trigger_error('User-supplied function must be a valid callback', E_USER_WARNING); | |
| } | |
| } | |
| /** | |
| * Parse a superset of W3C-DTF (allows hyphens and colons to be omitted, as | |
| * well as allowing any of upper or lower case "T", horizontal tabs, or | |
| * spaces to be used as the time separator (including more than one)) | |
| * | |
| * @access protected | |
| * @return int Timestamp | |
| */ | |
| public function date_w3cdtf($date) | |
| { | |
| static $pcre; | |
| if (!$pcre) | |
| { | |
| $year = '([0-9]{4})'; | |
| $month = $day = $hour = $minute = $second = '([0-9]{2})'; | |
| $decimal = '([0-9]*)'; | |
| $zone = '(?:(Z)|([+\-])([0-9]{1,2}):?([0-9]{1,2}))'; | |
| $pcre = '/^' . $year . '(?:-?' . $month . '(?:-?' . $day . '(?:[Tt\x09\x20]+' . $hour . '(?::?' . $minute . '(?::?' . $second . '(?:.' . $decimal . ')?)?)?' . $zone . ')?)?)?$/'; | |
| } | |
| if (preg_match($pcre, $date, $match)) | |
| { | |
| /* | |
| Capturing subpatterns: | |
| 1: Year | |
| 2: Month | |
| 3: Day | |
| 4: Hour | |
| 5: Minute | |
| 6: Second | |
| 7: Decimal fraction of a second | |
| 8: Zulu | |
| 9: Timezone ± | |
| 10: Timezone hours | |
| 11: Timezone minutes | |
| */ | |
| // Fill in empty matches | |
| for ($i = count($match); $i <= 3; $i++) | |
| { | |
| $match[$i] = '1'; | |
| } | |
| for ($i = count($match); $i <= 7; $i++) | |
| { | |
| $match[$i] = '0'; | |
| } | |
| // Numeric timezone | |
| if (isset($match[9]) && $match[9] !== '') | |
| { | |
| $timezone = $match[10] * 3600; | |
| $timezone += $match[11] * 60; | |
| if ($match[9] === '-') | |
| { | |
| $timezone = 0 - $timezone; | |
| } | |
| } | |
| else | |
| { | |
| $timezone = 0; | |
| } | |
| // Convert the number of seconds to an integer, taking decimals into account | |
| $second = round((int)$match[6] + (int)$match[7] / (10 ** strlen($match[7]))); | |
| return gmmktime($match[4], $match[5], $second, $match[2], $match[3], $match[1]) - $timezone; | |
| } | |
| return false; | |
| } | |
| /** | |
| * Remove RFC822 comments | |
| * | |
| * @access protected | |
| * @param string $data Data to strip comments from | |
| * @return string Comment stripped string | |
| */ | |
| public function remove_rfc2822_comments($string) | |
| { | |
| $string = (string) $string; | |
| $position = 0; | |
| $length = strlen($string); | |
| $depth = 0; | |
| $output = ''; | |
| while ($position < $length && ($pos = strpos($string, '(', $position)) !== false) | |
| { | |
| $output .= substr($string, $position, $pos - $position); | |
| $position = $pos + 1; | |
| if ($pos === 0 || $string[$pos - 1] !== '\\') | |
| { | |
| $depth++; | |
| while ($depth && $position < $length) | |
| { | |
| $position += strcspn($string, '()', $position); | |
| if ($string[$position - 1] === '\\') | |
| { | |
| $position++; | |
| continue; | |
| } | |
| elseif (isset($string[$position])) | |
| { | |
| switch ($string[$position]) | |
| { | |
| case '(': | |
| $depth++; | |
| break; | |
| case ')': | |
| $depth--; | |
| break; | |
| } | |
| $position++; | |
| } | |
| else | |
| { | |
| break; | |
| } | |
| } | |
| } | |
| else | |
| { | |
| $output .= '('; | |
| } | |
| } | |
| $output .= substr($string, $position); | |
| return $output; | |
| } | |
| /** | |
| * Parse RFC2822's date format | |
| * | |
| * @access protected | |
| * @return int Timestamp | |
| */ | |
| public function date_rfc2822($date) | |
| { | |
| static $pcre; | |
| if (!$pcre) | |
| { | |
| $wsp = '[\x09\x20]'; | |
| $fws = '(?:' . $wsp . '+|' . $wsp . '*(?:\x0D\x0A' . $wsp . '+)+)'; | |
| $optional_fws = $fws . '?'; | |
| $day_name = $this->day_pcre; | |
| $month = $this->month_pcre; | |
| $day = '([0-9]{1,2})'; | |
| $hour = $minute = $second = '([0-9]{2})'; | |
| $year = '([0-9]{2,4})'; | |
| $num_zone = '([+\-])([0-9]{2})([0-9]{2})'; | |
| $character_zone = '([A-Z]{1,5})'; | |
| $zone = '(?:' . $num_zone . '|' . $character_zone . ')'; | |
| $pcre = '/(?:' . $optional_fws . $day_name . $optional_fws . ',)?' . $optional_fws . $day . $fws . $month . $fws . $year . $fws . $hour . $optional_fws . ':' . $optional_fws . $minute . '(?:' . $optional_fws . ':' . $optional_fws . $second . ')?' . $fws . $zone . '/i'; | |
| } | |
| if (preg_match($pcre, $this->remove_rfc2822_comments($date), $match)) | |
| { | |
| /* | |
| Capturing subpatterns: | |
| 1: Day name | |
| 2: Day | |
| 3: Month | |
| 4: Year | |
| 5: Hour | |
| 6: Minute | |
| 7: Second | |
| 8: Timezone ± | |
| 9: Timezone hours | |
| 10: Timezone minutes | |
| 11: Alphabetic timezone | |
| */ | |
| // Find the month number | |
| $month = $this->month[strtolower($match[3])]; | |
| // Numeric timezone | |
| if ($match[8] !== '') | |
| { | |
| $timezone = $match[9] * 3600; | |
| $timezone += $match[10] * 60; | |
| if ($match[8] === '-') | |
| { | |
| $timezone = 0 - $timezone; | |
| } | |
| } | |
| // Character timezone | |
| elseif (isset($this->timezone[strtoupper($match[11])])) | |
| { | |
| $timezone = $this->timezone[strtoupper($match[11])]; | |
| } | |
| // Assume everything else to be -0000 | |
| else | |
| { | |
| $timezone = 0; | |
| } | |
| // Deal with 2/3 digit years | |
| if ($match[4] < 50) | |
| { | |
| $match[4] += 2000; | |
| } | |
| elseif ($match[4] < 1000) | |
| { | |
| $match[4] += 1900; | |
| } | |
| // Second is optional, if it is empty set it to zero | |
| if ($match[7] !== '') | |
| { | |
| $second = $match[7]; | |
| } | |
| else | |
| { | |
| $second = 0; | |
| } | |
| return gmmktime($match[5], $match[6], $second, $month, $match[2], $match[4]) - $timezone; | |
| } | |
| return false; | |
| } | |
| /** | |
| * Parse RFC850's date format | |
| * | |
| * @access protected | |
| * @return int Timestamp | |
| */ | |
| public function date_rfc850($date) | |
| { | |
| static $pcre; | |
| if (!$pcre) | |
| { | |
| $space = '[\x09\x20]+'; | |
| $day_name = $this->day_pcre; | |
| $month = $this->month_pcre; | |
| $day = '([0-9]{1,2})'; | |
| $year = $hour = $minute = $second = '([0-9]{2})'; | |
| $zone = '([A-Z]{1,5})'; | |
| $pcre = '/^' . $day_name . ',' . $space . $day . '-' . $month . '-' . $year . $space . $hour . ':' . $minute . ':' . $second . $space . $zone . '$/i'; | |
| } | |
| if (preg_match($pcre, $date, $match)) | |
| { | |
| /* | |
| Capturing subpatterns: | |
| 1: Day name | |
| 2: Day | |
| 3: Month | |
| 4: Year | |
| 5: Hour | |
| 6: Minute | |
| 7: Second | |
| 8: Timezone | |
| */ | |
| // Month | |
| $month = $this->month[strtolower($match[3])]; | |
| // Character timezone | |
| if (isset($this->timezone[strtoupper($match[8])])) | |
| { | |
| $timezone = $this->timezone[strtoupper($match[8])]; | |
| } | |
| // Assume everything else to be -0000 | |
| else | |
| { | |
| $timezone = 0; | |
| } | |
| // Deal with 2 digit year | |
| if ($match[4] < 50) | |
| { | |
| $match[4] += 2000; | |
| } | |
| else | |
| { | |
| $match[4] += 1900; | |
| } | |
| return gmmktime($match[5], $match[6], $match[7], $month, $match[2], $match[4]) - $timezone; | |
| } | |
| return false; | |
| } | |
| /** | |
| * Parse C99's asctime()'s date format | |
| * | |
| * @access protected | |
| * @return int Timestamp | |
| */ | |
| public function date_asctime($date) | |
| { | |
| static $pcre; | |
| if (!$pcre) | |
| { | |
| $space = '[\x09\x20]+'; | |
| $wday_name = $this->day_pcre; | |
| $mon_name = $this->month_pcre; | |
| $day = '([0-9]{1,2})'; | |
| $hour = $sec = $min = '([0-9]{2})'; | |
| $year = '([0-9]{4})'; | |
| $terminator = '\x0A?\x00?'; | |
| $pcre = '/^' . $wday_name . $space . $mon_name . $space . $day . $space . $hour . ':' . $min . ':' . $sec . $space . $year . $terminator . '$/i'; | |
| } | |
| if (preg_match($pcre, $date, $match)) | |
| { | |
| /* | |
| Capturing subpatterns: | |
| 1: Day name | |
| 2: Month | |
| 3: Day | |
| 4: Hour | |
| 5: Minute | |
| 6: Second | |
| 7: Year | |
| */ | |
| $month = $this->month[strtolower($match[2])]; | |
| return gmmktime($match[4], $match[5], $match[6], $month, $match[3], $match[7]); | |
| } | |
| return false; | |
| } | |
| /** | |
| * Parse dates using strtotime() | |
| * | |
| * @access protected | |
| * @return int Timestamp | |
| */ | |
| public function date_strtotime($date) | |
| { | |
| $strtotime = strtotime($date); | |
| if ($strtotime === -1 || $strtotime === false) | |
| { | |
| return false; | |
| } | |
| return $strtotime; | |
| } | |
| } | |