--- /dev/null
+<?php
+/**
+ * SimplePie
+ *
+ * A PHP-Based RSS and Atom Feed Framework.
+ * Takes the hard work out of managing a complete RSS/Atom solution.
+ *
+ * Copyright (c) 2004-2012, Ryan Parman, Geoffrey 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
+ * @version 1.3.1
+ * @copyright 2004-2012 Ryan Parman, Geoffrey Sneddon, Ryan McCue
+ * @author Ryan Parman
+ * @author Geoffrey 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,
+ 'dienstag' => 2,
+ 'mittwoch' => 3,
+ 'donnerstag' => 4,
+ 'freitag' => 5,
+ 'samstag' => 6,
+ 'sonnabend' => 6,
+ '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,
+ );
+
+ /**
+ * 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' => 8,
+ '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,
+ 'februar' => 2,
+ 'märz' => 3,
+ 'april' => 4,
+ 'mai' => 5,
+ 'juni' => 6,
+ 'juli' => 7,
+ 'august' => 8,
+ 'september' => 9,
+ 'oktober' => 10,
+ 'november' => 11,
+ 'dezember' => 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,
+ );
+
+ /**
+ * 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,
+ '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[] = $callback;
+ }
+ else
+ {
+ trigger_error('User-supplied function must be a valid callback', E_USER_WARNING);
+ }
+ }
+
+ /**
+ * Parse a superset of W3C-DTF (allows hyphens and colons to be omitted, as
+ * well as allowing any of upper or lower case "T", horizontal tabs, or
+ * spaces to be used as the time seperator (including more than one))
+ *
+ * @access protected
+ * @return int Timestamp
+ */
+ public function date_w3cdtf($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
+ $second = round($match[6] + $match[7] / pow(10, strlen($match[7])));
+
+ return gmmktime($match[4], $match[5], $second, $match[2], $match[3], $match[1]) - $timezone;
+ }
+ else
+ {
+ 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 = $pos + 1;
+ if ($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]) - $timezone;
+ }
+ else
+ {
+ return false;
+ }
+ }
+
+ /**
+ * Parse RFC850's date format
+ *
+ * @access protected
+ * @return int Timestamp
+ */
+ public function date_rfc850($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]) - $timezone;
+ }
+ else
+ {
+ return false;
+ }
+ }
+
+ /**
+ * Parse C99's asctime()'s date format
+ *
+ * @access protected
+ * @return int Timestamp
+ */
+ public function date_asctime($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], $match[7]);
+ }
+ else
+ {
+ return false;
+ }
+ }
+
+ /**
+ * Parse dates using strtotime()
+ *
+ * @access protected
+ * @return int Timestamp
+ */
+ public function date_strtotime($date)
+ {
+ $strtotime = strtotime($date);
+ if ($strtotime === -1 || $strtotime === false)
+ {
+ return false;
+ }
+ else
+ {
+ return $strtotime;
+ }
+ }
+}
+
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