← All changes | back/Libraries/Imap2/Roundcube/Utils.php +145 -0 10.10.1 → 11.1.0 View file →

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	1	+<?php
	2	+
	3	+/**
	4	+ * +-----------------------------------------------------------------------+
	5	+ * | This file is part of the Roundcube Webmail client |
	6	+ * | |
	7	+ * | Copyright (C) The Roundcube Dev Team |
	8	+ * | Copyright (C) Kolab Systems AG |
	9	+ * | |
	10	+ * | Licensed under the GNU General Public License version 3 or |
	11	+ * | any later version with exceptions for skins & plugins. |
	12	+ * | See the README file for a full license statement. |
	13	+ * | |
	14	+ * | PURPOSE: |
	15	+ * | Utility class providing common functions |
	16	+ * +-----------------------------------------------------------------------+
	17	+ * | Author: Thomas Bruederli <[email protected]> |
	18	+ * | Author: Aleksander Machniak <[email protected]> |
	19	+ * +-----------------------------------------------------------------------+
	20	+ */
	21	+
	22	+namespace AcyMailing\Libraries\Imap2\Roundcube;
	23	+
	24	+use DateTimeZone;
	25	+
	26	+/**
	27	+ * Utility class providing common functions
	28	+ *
	29	+ * @package Framework
	30	+ * @subpackage Utils
	31	+ */
	32	+class Utils
	33	+{
	34	+ /**
	35	+ * Explode quoted string
	36	+ *
	37	+ * @param string $delimiter Delimiter expression string for preg_match()
	38	+ * @param string $string Input string
	39	+ *
	40	+ * @return array String items
	41	+ */
	42	+ public static function explode_quoted_string($delimiter, $string)
	43	+ {
	44	+ $result = [];
	45	+ $strlen = strlen($string);
	46	+
	47	+ for ($q = $p = $i = 0 ; $i < $strlen ; $i++) {
	48	+ if ($string[$i] == "\"" && $string[$i - 1] != "\\") {
	49	+ $q = $q ? false : true;
	50	+ } elseif (!$q && preg_match("/$delimiter/", $string[$i])) {
	51	+ $result[] = substr($string, $p, $i - $p);
	52	+ $p = $i + 1;
	53	+ }
	54	+ }
	55	+
	56	+ $result[] = (string)substr($string, $p);
	57	+
	58	+ return $result;
	59	+ }
	60	+
	61	+ /**
	62	+ * Improved equivalent to strtotime()
	63	+ *
	64	+ * @param string $date Date string
	65	+ * @param DateTimeZone $timezone Timezone to use for DateTime object
	66	+ *
	67	+ * @return int Unix timestamp
	68	+ */
	69	+ public static function strtotime($date, $timezone = null)
	70	+ {
	71	+ $date = self::clean_datestr($date);
	72	+ $tzname = $timezone ? ' '.$timezone->getName() : '';
	73	+
	74	+ // unix timestamp
	75	+ if (is_numeric($date)) {
	76	+ return (int)$date;
	77	+ }
	78	+
	79	+ // It can be very slow when provided string is not a date and very long
	80	+ if (strlen($date) > 128) {
	81	+ $date = substr($date, 0, 128);
	82	+ }
	83	+
	84	+ // if date parsing fails, we have a date in non-rfc format.
	85	+ // remove token from the end and try again
	86	+ while (($ts = @strtotime($date.$tzname)) === false || $ts < 0) {
	87	+ if (($pos = strrpos($date, ' ')) === false) {
	88	+ break;
	89	+ }
	90	+
	91	+ $date = rtrim(substr($date, 0, $pos));
	92	+ }
	93	+
	94	+ return (int)$ts;
	95	+ }
	96	+
	97	+ /**
	98	+ * Clean up date string for strtotime() input
	99	+ *
	100	+ * @param string $date Date string
	101	+ *
	102	+ * @return string Date string
	103	+ */
	104	+ public static function clean_datestr($date)
	105	+ {
	106	+ $date = trim($date);
	107	+
	108	+ // check for MS Outlook vCard date format YYYYMMDD
	109	+ if (preg_match('/^([12][90]\d\d)([01]\d)([0123]\d)$/', $date, $m)) {
	110	+ return sprintf('%04d-%02d-%02d 00:00:00', intval($m[1]), intval($m[2]), intval($m[3]));
	111	+ }
	112	+
	113	+ // Clean malformed data
	114	+ $date = preg_replace(
	115	+ [
	116	+ '/\(.*\)/', // remove RFC comments
	117	+ '/GMT\s*([+-][0-9]+)/', // support non-standard "GMTXXXX" literal
	118	+ '/[^a-z0-9\x20\x09:\/\.+-]/i', // remove any invalid characters
	119	+ '/\s*(Mon|Tue|Wed|Thu|Fri|Sat|Sun)\s*/i', // remove weekday names
	120	+ ],
	121	+ [
	122	+ '',
	123	+ '\\1',
	124	+ '',
	125	+ '',
	126	+ ],
	127	+ $date
	128	+ );
	129	+
	130	+ $date = trim($date);
	131	+
	132	+ // try to fix dd/mm vs. mm/dd discrepancy, we can't do more here
	133	+ if (preg_match('/^(\d{1,2})[.\/-](\d{1,2})[.\/-](\d{4})(\s.*)?$/', $date, $m)) {
	134	+ $mdy = $m[2] > 12 && $m[1] <= 12;
	135	+ $day = $mdy ? $m[2] : $m[1];
	136	+ $month = $mdy ? $m[1] : $m[2];
	137	+ $date = sprintf('%04d-%02d-%02d%s', $m[3], $month, $day, $m[4] ? : ' 00:00:00');
	138	+ } // I've found that YYYY.MM.DD is recognized wrong, so here's a fix
	139	+ elseif (preg_match('/^(\d{4})\.(\d{1,2})\.(\d{1,2})(\s.*)?$/', $date, $m)) {
	140	+ $date = sprintf('%04d-%02d-%02d%s', $m[1], $m[2], $m[3], $m[4] ? : ' 00:00:00');
	141	+ }
	142	+
	143	+ return $date;
	144	+ }
	145	+}