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<?php |
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|
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/** |
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* +-----------------------------------------------------------------------+ |
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* | This file is part of the Roundcube Webmail client | |
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* | | |
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* | Copyright (C) The Roundcube Dev Team | |
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* | Copyright (C) Kolab Systems AG | |
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* | | |
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* | Licensed under the GNU General Public License version 3 or | |
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* | any later version with exceptions for skins & plugins. | |
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* | See the README file for a full license statement. | |
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* | | |
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* | PURPOSE: | |
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* | Utility class providing common functions | |
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* +-----------------------------------------------------------------------+ |
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* | Author: Thomas Bruederli <[email protected]> | |
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* | Author: Aleksander Machniak <[email protected]> | |
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* +-----------------------------------------------------------------------+ |
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*/ |
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|
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namespace AcyMailing\Libraries\Imap2\Roundcube; |
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|
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use DateTimeZone; |
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|
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/** |
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* Utility class providing common functions |
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* |
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* @package Framework |
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* @subpackage Utils |
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*/ |
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class Utils |
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{ |
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/** |
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* Explode quoted string |
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* |
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* @param string $delimiter Delimiter expression string for preg_match() |
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* @param string $string Input string |
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* |
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* @return array String items |
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*/ |
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public static function explode_quoted_string($delimiter, $string) |
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{ |
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$result = []; |
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$strlen = strlen($string); |
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|
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for ($q = $p = $i = 0 ; $i < $strlen ; $i++) { |
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if ($string[$i] == "\"" && $string[$i - 1] != "\\") { |
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$q = $q ? false : true; |
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} elseif (!$q && preg_match("/$delimiter/", $string[$i])) { |
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$result[] = substr($string, $p, $i - $p); |
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$p = $i + 1; |
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} |
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} |
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|
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$result[] = (string)substr($string, $p); |
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|
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return $result; |
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} |
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|
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/** |
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* Improved equivalent to strtotime() |
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* |
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* @param string $date Date string |
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* @param DateTimeZone $timezone Timezone to use for DateTime object |
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* |
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* @return int Unix timestamp |
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*/ |
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public static function strtotime($date, $timezone = null) |
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{ |
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$date = self::clean_datestr($date); |
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$tzname = $timezone ? ' '.$timezone->getName() : ''; |
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|
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// unix timestamp |
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if (is_numeric($date)) { |
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return (int)$date; |
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} |
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|
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// It can be very slow when provided string is not a date and very long |
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if (strlen($date) > 128) { |
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$date = substr($date, 0, 128); |
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} |
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|
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// if date parsing fails, we have a date in non-rfc format. |
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// remove token from the end and try again |
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while (($ts = @strtotime($date.$tzname)) === false || $ts < 0) { |
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if (($pos = strrpos($date, ' ')) === false) { |
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break; |
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} |
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|
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$date = rtrim(substr($date, 0, $pos)); |
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} |
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|
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return (int)$ts; |
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} |
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|
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/** |
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* Clean up date string for strtotime() input |
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* |
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* @param string $date Date string |
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* |
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* @return string Date string |
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*/ |
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public static function clean_datestr($date) |
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{ |
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$date = trim($date); |
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|
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// check for MS Outlook vCard date format YYYYMMDD |
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if (preg_match('/^([12][90]\d\d)([01]\d)([0123]\d)$/', $date, $m)) { |
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return sprintf('%04d-%02d-%02d 00:00:00', intval($m[1]), intval($m[2]), intval($m[3])); |
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} |
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|
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// Clean malformed data |
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$date = preg_replace( |
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[ |
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'/\(.*\)/', // remove RFC comments |
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'/GMT\s*([+-][0-9]+)/', // support non-standard "GMTXXXX" literal |
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'/[^a-z0-9\x20\x09:\/\.+-]/i', // remove any invalid characters |
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'/\s*(Mon|Tue|Wed|Thu|Fri|Sat|Sun)\s*/i', // remove weekday names |
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], |
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[ |
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'', |
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'\\1', |
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'', |
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'', |
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], |
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$date |
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); |
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|
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$date = trim($date); |
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|
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// try to fix dd/mm vs. mm/dd discrepancy, we can't do more here |
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if (preg_match('/^(\d{1,2})[.\/-](\d{1,2})[.\/-](\d{4})(\s.*)?$/', $date, $m)) { |
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$mdy = $m[2] > 12 && $m[1] <= 12; |
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$day = $mdy ? $m[2] : $m[1]; |
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$month = $mdy ? $m[1] : $m[2]; |
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$date = sprintf('%04d-%02d-%02d%s', $m[3], $month, $day, $m[4] ? : ' 00:00:00'); |
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} // I've found that YYYY.MM.DD is recognized wrong, so here's a fix |
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elseif (preg_match('/^(\d{4})\.(\d{1,2})\.(\d{1,2})(\s.*)?$/', $date, $m)) { |
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$date = sprintf('%04d-%02d-%02d%s', $m[1], $m[2], $m[3], $m[4] ? : ' 00:00:00'); |
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} |
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|
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return $date; |
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} |
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} |
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|
