[7589] | 1 | <?php |
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| 2 | /*********************************************** |
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| 3 | * File : utils.php |
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| 4 | * Project : Z-Push |
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| 5 | * Descr : Several utility functions |
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| 6 | * |
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| 7 | * Created : 03.04.2008 |
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| 8 | * |
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| 9 | * Copyright 2007 - 2012 Zarafa Deutschland GmbH |
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| 10 | * |
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| 11 | * This program is free software: you can redistribute it and/or modify |
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| 12 | * it under the terms of the GNU Affero General Public License, version 3, |
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| 13 | * as published by the Free Software Foundation with the following additional |
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| 14 | * term according to sec. 7: |
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| 15 | * |
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| 16 | * According to sec. 7 of the GNU Affero General Public License, version 3, |
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| 17 | * the terms of the AGPL are supplemented with the following terms: |
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| 18 | * |
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| 19 | * "Zarafa" is a registered trademark of Zarafa B.V. |
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| 20 | * "Z-Push" is a registered trademark of Zarafa Deutschland GmbH |
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| 21 | * The licensing of the Program under the AGPL does not imply a trademark license. |
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| 22 | * Therefore any rights, title and interest in our trademarks remain entirely with us. |
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| 23 | * |
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| 24 | * However, if you propagate an unmodified version of the Program you are |
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| 25 | * allowed to use the term "Z-Push" to indicate that you distribute the Program. |
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| 26 | * Furthermore you may use our trademarks where it is necessary to indicate |
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| 27 | * the intended purpose of a product or service provided you use it in accordance |
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| 28 | * with honest practices in industrial or commercial matters. |
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| 29 | * If you want to propagate modified versions of the Program under the name "Z-Push", |
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| 30 | * you may only do so if you have a written permission by Zarafa Deutschland GmbH |
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| 31 | * (to acquire a permission please contact Zarafa at trademark@zarafa.com). |
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| 32 | * |
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| 33 | * This program is distributed in the hope that it will be useful, |
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| 34 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 35 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 36 | * GNU Affero General Public License for more details. |
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| 37 | * |
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| 38 | * You should have received a copy of the GNU Affero General Public License |
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| 39 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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| 40 | * |
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| 41 | * Consult LICENSE file for details |
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| 42 | ************************************************/ |
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| 43 | |
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| 44 | class Utils { |
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| 45 | /** |
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| 46 | * Prints a variable as string |
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| 47 | * If a boolean is sent, 'true' or 'false' is displayed |
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| 48 | * |
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| 49 | * @param string $var |
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| 50 | * @access public |
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| 51 | * @return string |
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| 52 | */ |
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| 53 | static public function PrintAsString($var) { |
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| 54 | return ($var)?(($var===true)?'true':$var):(($var===false)?'false':(($var==='')?'empty':$var)); |
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| 55 | //return ($var)?(($var===true)?'true':$var):'false'; |
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| 56 | } |
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| 57 | |
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| 58 | /** |
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| 59 | * Splits a "domain\user" string into two values |
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| 60 | * If the string cotains only the user, domain is returned empty |
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| 61 | * |
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| 62 | * @param string $domainuser |
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| 63 | * |
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| 64 | * @access public |
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| 65 | * @return array index 0: user 1: domain |
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| 66 | */ |
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| 67 | static public function SplitDomainUser($domainuser) { |
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| 68 | $pos = strrpos($domainuser, '\\'); |
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| 69 | if($pos === false){ |
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| 70 | $user = $domainuser; |
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| 71 | $domain = ''; |
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| 72 | } |
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| 73 | else{ |
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| 74 | $domain = substr($domainuser,0,$pos); |
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| 75 | $user = substr($domainuser,$pos+1); |
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| 76 | } |
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| 77 | return array($user, $domain); |
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| 78 | } |
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| 79 | |
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| 80 | /** |
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| 81 | * iPhone defines standard summer time information for current year only, |
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| 82 | * starting with time change in February. Dates from the 1st January until |
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| 83 | * the time change are undefined and the server uses GMT or its current time. |
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| 84 | * The function parses the ical attachment and replaces DTSTART one year back |
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| 85 | * in VTIMEZONE section if the event takes place in this undefined time. |
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| 86 | * See also http://developer.berlios.de/mantis/view.php?id=311 |
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| 87 | * |
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| 88 | * @param string $ical iCalendar data |
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| 89 | * |
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| 90 | * @access public |
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| 91 | * @return string |
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| 92 | */ |
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| 93 | static public function IcalTimezoneFix($ical) { |
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| 94 | $eventDate = substr($ical, (strpos($ical, ":", strpos($ical, "DTSTART", strpos($ical, "BEGIN:VEVENT")))+1), 8); |
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| 95 | $posStd = strpos($ical, "DTSTART:", strpos($ical, "BEGIN:STANDARD")) + strlen("DTSTART:"); |
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| 96 | $posDst = strpos($ical, "DTSTART:", strpos($ical, "BEGIN:DAYLIGHT")) + strlen("DTSTART:"); |
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| 97 | $beginStandard = substr($ical, $posStd , 8); |
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| 98 | $beginDaylight = substr($ical, $posDst , 8); |
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| 99 | |
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| 100 | if (($eventDate < $beginStandard) && ($eventDate < $beginDaylight) ) { |
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| 101 | ZLog::Write(LOGLEVEL_DEBUG,"icalTimezoneFix for event on $eventDate, standard:$beginStandard, daylight:$beginDaylight"); |
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| 102 | $year = intval(date("Y")) - 1; |
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| 103 | $ical = substr_replace($ical, $year, (($beginStandard < $beginDaylight) ? $posDst : $posStd), strlen($year)); |
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| 104 | } |
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| 105 | |
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| 106 | return $ical; |
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| 107 | } |
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| 108 | |
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| 109 | /** |
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| 110 | * Build an address string from the components |
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| 111 | * |
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| 112 | * @param string $street the street |
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| 113 | * @param string $zip the zip code |
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| 114 | * @param string $city the city |
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| 115 | * @param string $state the state |
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| 116 | * @param string $country the country |
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| 117 | * |
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| 118 | * @access public |
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| 119 | * @return string the address string or null |
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| 120 | */ |
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| 121 | static public function BuildAddressString($street, $zip, $city, $state, $country) { |
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| 122 | $out = ""; |
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| 123 | |
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| 124 | if (isset($country) && $street != "") $out = $country; |
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| 125 | |
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| 126 | $zcs = ""; |
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| 127 | if (isset($zip) && $zip != "") $zcs = $zip; |
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| 128 | if (isset($city) && $city != "") $zcs .= (($zcs)?" ":"") . $city; |
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| 129 | if (isset($state) && $state != "") $zcs .= (($zcs)?" ":"") . $state; |
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| 130 | if ($zcs) $out = $zcs . "\r\n" . $out; |
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| 131 | |
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| 132 | if (isset($street) && $street != "") $out = $street . (($out)?"\r\n\r\n". $out: "") ; |
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| 133 | |
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| 134 | return ($out)?$out:null; |
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| 135 | } |
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| 136 | |
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| 137 | /** |
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| 138 | * Build the fileas string from the components according to the configuration. |
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| 139 | * |
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| 140 | * @param string $lastname |
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| 141 | * @param string $firstname |
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| 142 | * @param string $middlename |
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| 143 | * @param string $company |
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| 144 | * |
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| 145 | * @access public |
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| 146 | * @return string fileas |
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| 147 | */ |
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| 148 | static public function BuildFileAs($lastname = "", $firstname = "", $middlename = "", $company = "") { |
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| 149 | if (defined('FILEAS_ORDER')) { |
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| 150 | $fileas = $lastfirst = $firstlast = ""; |
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| 151 | $names = trim ($firstname . " " . $middlename); |
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| 152 | $lastname = trim($lastname); |
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| 153 | $company = trim($company); |
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| 154 | |
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| 155 | // lastfirst is "lastname, firstname middlename" |
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| 156 | // firstlast is "firstname middlename lastname" |
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| 157 | if (strlen($lastname) > 0) { |
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| 158 | $lastfirst = $lastname; |
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| 159 | if (strlen($names) > 0){ |
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| 160 | $lastfirst .= ", $names"; |
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| 161 | $firstlast = "$names $lastname"; |
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| 162 | } |
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| 163 | else { |
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| 164 | $firstlast = $lastname; |
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| 165 | } |
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| 166 | } |
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| 167 | elseif (strlen($names) > 0) { |
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| 168 | $lastfirst = $firstlast = $names; |
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| 169 | } |
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| 170 | |
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| 171 | // if fileas with a company is selected |
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| 172 | // but company is emtpy then it will |
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| 173 | // fallback to firstlast or lastfirst |
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| 174 | // (depending on which is selected for company) |
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| 175 | switch (FILEAS_ORDER) { |
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| 176 | case SYNC_FILEAS_COMPANYONLY: |
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| 177 | if (strlen($company) > 0) { |
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| 178 | $fileas = $company; |
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| 179 | } |
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| 180 | elseif (strlen($firstlast) > 0) |
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| 181 | $fileas = $lastfirst; |
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| 182 | break; |
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| 183 | case SYNC_FILEAS_COMPANYLAST: |
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| 184 | if (strlen($company) > 0) { |
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| 185 | $fileas = $company; |
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| 186 | if (strlen($lastfirst) > 0) |
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| 187 | $fileas .= "($lastfirst)"; |
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| 188 | } |
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| 189 | elseif (strlen($lastfirst) > 0) |
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| 190 | $fileas = $lastfirst; |
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| 191 | break; |
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| 192 | case SYNC_FILEAS_COMPANYFIRST: |
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| 193 | if (strlen($company) > 0) { |
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| 194 | $fileas = $company; |
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| 195 | if (strlen($firstlast) > 0) { |
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| 196 | $fileas .= " ($firstlast)"; |
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| 197 | } |
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| 198 | } |
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| 199 | elseif (strlen($firstlast) > 0) { |
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| 200 | $fileas = $firstlast; |
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| 201 | } |
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| 202 | break; |
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| 203 | case SYNC_FILEAS_FIRSTCOMPANY: |
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| 204 | if (strlen($firstlast) > 0) { |
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| 205 | $fileas = $firstlast; |
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| 206 | if (strlen($company) > 0) { |
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| 207 | $fileas .= " ($company)"; |
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| 208 | } |
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| 209 | } |
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| 210 | elseif (strlen($company) > 0) { |
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| 211 | $fileas = $company; |
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| 212 | } |
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| 213 | break; |
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| 214 | case SYNC_FILEAS_LASTCOMPANY: |
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| 215 | if (strlen($lastfirst) > 0) { |
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| 216 | $fileas = $lastfirst; |
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| 217 | if (strlen($company) > 0) { |
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| 218 | $fileas .= " ($company)"; |
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| 219 | } |
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| 220 | } |
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| 221 | elseif (strlen($company) > 0) { |
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| 222 | $fileas = $company; |
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| 223 | } |
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| 224 | break; |
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| 225 | case SYNC_FILEAS_LASTFIRST: |
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| 226 | if (strlen($lastfirst) > 0) { |
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| 227 | $fileas = $lastfirst; |
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| 228 | } |
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| 229 | break; |
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| 230 | default: |
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| 231 | $fileas = $firstlast; |
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| 232 | break; |
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| 233 | } |
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| 234 | if (strlen($fileas) == 0) |
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| 235 | ZLog::Write(LOGLEVEL_DEBUG, "Fileas is empty."); |
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| 236 | return $fileas; |
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| 237 | } |
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| 238 | ZLog::Write(LOGLEVEL_DEBUG, "FILEAS_ORDER not defined. Add it to your config.php."); |
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| 239 | return null; |
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| 240 | } |
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| 241 | /** |
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| 242 | * Checks if the PHP-MAPI extension is available and in a requested version |
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| 243 | * |
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| 244 | * @param string $version the version to be checked ("6.30.10-18495", parts or build number) |
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| 245 | * |
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| 246 | * @access public |
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| 247 | * @return boolean installed version is superior to the checked strin |
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| 248 | */ |
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| 249 | static public function CheckMapiExtVersion($version = "") { |
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| 250 | // compare build number if requested |
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| 251 | if (preg_match('/^\d+$/', $version) && strlen($version) > 3) { |
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| 252 | $vs = preg_split('/-/', phpversion("mapi")); |
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| 253 | return ($version <= $vs[1]); |
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| 254 | } |
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| 255 | |
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| 256 | if (extension_loaded("mapi")){ |
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| 257 | if (version_compare(phpversion("mapi"), $version) == -1){ |
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| 258 | return false; |
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| 259 | } |
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| 260 | } |
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| 261 | else |
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| 262 | return false; |
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| 263 | |
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| 264 | return true; |
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| 265 | } |
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| 266 | |
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| 267 | /** |
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| 268 | * Parses and returns an ecoded vCal-Uid from an |
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| 269 | * OL compatible GlobalObjectID |
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| 270 | * |
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| 271 | * @param string $olUid an OL compatible GlobalObjectID |
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| 272 | * |
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| 273 | * @access public |
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| 274 | * @return string the vCal-Uid if available in the olUid, else the original olUid as HEX |
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| 275 | */ |
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| 276 | static public function GetICalUidFromOLUid($olUid){ |
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| 277 | //check if "vCal-Uid" is somewhere in outlookid case-insensitive |
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| 278 | $icalUid = stristr($olUid, "vCal-Uid"); |
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| 279 | if ($icalUid !== false) { |
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| 280 | //get the length of the ical id - go back 4 position from where "vCal-Uid" was found |
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| 281 | $begin = unpack("V", substr($olUid, strlen($icalUid) * (-1) - 4, 4)); |
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| 282 | //remove "vCal-Uid" and packed "1" and use the ical id length |
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| 283 | return substr($icalUid, 12, ($begin[1] - 13)); |
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| 284 | } |
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| 285 | return strtoupper(bin2hex($olUid)); |
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| 286 | } |
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| 287 | |
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| 288 | /** |
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| 289 | * Checks the given UID if it is an OL compatible GlobalObjectID |
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| 290 | * If not, the given UID is encoded inside the GlobalObjectID |
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| 291 | * |
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| 292 | * @param string $icalUid an appointment uid as HEX |
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| 293 | * |
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| 294 | * @access public |
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| 295 | * @return string an OL compatible GlobalObjectID |
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| 296 | * |
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| 297 | */ |
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| 298 | static public function GetOLUidFromICalUid($icalUid) { |
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| 299 | if (strlen($icalUid) <= 64) { |
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| 300 | $len = 13 + strlen($icalUid); |
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| 301 | $OLUid = pack("V", $len); |
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| 302 | $OLUid .= "vCal-Uid"; |
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| 303 | $OLUid .= pack("V", 1); |
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| 304 | $OLUid .= $icalUid; |
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| 305 | return hex2bin("040000008200E00074C5B7101A82E0080000000000000000000000000000000000000000". bin2hex($OLUid). "00"); |
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| 306 | } |
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| 307 | else |
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| 308 | return hex2bin($icalUid); |
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| 309 | } |
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| 310 | |
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| 311 | /** |
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| 312 | * Extracts the basedate of the GlobalObjectID and the RecurStartTime |
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| 313 | * |
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| 314 | * @param string $goid OL compatible GlobalObjectID |
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| 315 | * @param long $recurStartTime |
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| 316 | * |
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| 317 | * @access public |
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| 318 | * @return long basedate |
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| 319 | */ |
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| 320 | static public function ExtractBaseDate($goid, $recurStartTime) { |
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| 321 | $hexbase = substr(bin2hex($goid), 32, 8); |
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| 322 | $day = hexdec(substr($hexbase, 6, 2)); |
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| 323 | $month = hexdec(substr($hexbase, 4, 2)); |
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| 324 | $year = hexdec(substr($hexbase, 0, 4)); |
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| 325 | |
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| 326 | if ($day && $month && $year) { |
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| 327 | $h = $recurStartTime >> 12; |
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| 328 | $m = ($recurStartTime - $h * 4096) >> 6; |
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| 329 | $s = $recurStartTime - $h * 4096 - $m * 64; |
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| 330 | |
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| 331 | return gmmktime($h, $m, $s, $month, $day, $year); |
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| 332 | } |
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| 333 | else |
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| 334 | return false; |
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| 335 | } |
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| 336 | |
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| 337 | /** |
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| 338 | * Converts SYNC_FILTERTYPE into a timestamp |
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| 339 | * |
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| 340 | * @param int Filtertype |
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| 341 | * |
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| 342 | * @access public |
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| 343 | * @return long |
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| 344 | */ |
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| 345 | static public function GetCutOffDate($restrict) { |
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| 346 | switch($restrict) { |
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| 347 | case SYNC_FILTERTYPE_1DAY: |
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| 348 | $back = 60 * 60 * 24; |
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| 349 | break; |
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| 350 | case SYNC_FILTERTYPE_3DAYS: |
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| 351 | $back = 60 * 60 * 24 * 3; |
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| 352 | break; |
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| 353 | case SYNC_FILTERTYPE_1WEEK: |
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| 354 | $back = 60 * 60 * 24 * 7; |
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| 355 | break; |
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| 356 | case SYNC_FILTERTYPE_2WEEKS: |
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| 357 | $back = 60 * 60 * 24 * 14; |
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| 358 | break; |
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| 359 | case SYNC_FILTERTYPE_1MONTH: |
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| 360 | $back = 60 * 60 * 24 * 31; |
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| 361 | break; |
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| 362 | case SYNC_FILTERTYPE_3MONTHS: |
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| 363 | $back = 60 * 60 * 24 * 31 * 3; |
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| 364 | break; |
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| 365 | case SYNC_FILTERTYPE_6MONTHS: |
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| 366 | $back = 60 * 60 * 24 * 31 * 6; |
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| 367 | break; |
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| 368 | default: |
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| 369 | break; |
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| 370 | } |
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| 371 | |
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| 372 | if(isset($back)) { |
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| 373 | $date = time() - $back; |
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| 374 | return $date; |
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| 375 | } else |
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| 376 | return 0; // unlimited |
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| 377 | } |
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| 378 | |
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| 379 | /** |
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| 380 | * Converts SYNC_TRUNCATION into bytes |
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| 381 | * |
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| 382 | * @param int SYNC_TRUNCATION |
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| 383 | * |
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| 384 | * @return long |
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| 385 | */ |
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| 386 | static public function GetTruncSize($truncation) { |
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| 387 | switch($truncation) { |
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| 388 | case SYNC_TRUNCATION_HEADERS: |
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| 389 | return 0; |
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| 390 | case SYNC_TRUNCATION_512B: |
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| 391 | return 512; |
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| 392 | case SYNC_TRUNCATION_1K: |
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| 393 | return 1024; |
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| 394 | case SYNC_TRUNCATION_2K: |
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| 395 | return 2*1024; |
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| 396 | case SYNC_TRUNCATION_5K: |
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| 397 | return 5*1024; |
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| 398 | case SYNC_TRUNCATION_10K: |
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| 399 | return 10*1024; |
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| 400 | case SYNC_TRUNCATION_20K: |
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| 401 | return 20*1024; |
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| 402 | case SYNC_TRUNCATION_50K: |
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| 403 | return 50*1024; |
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| 404 | case SYNC_TRUNCATION_100K: |
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| 405 | return 100*1024; |
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| 406 | case SYNC_TRUNCATION_ALL: |
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| 407 | return 1024*1024; // We'll limit to 1MB anyway |
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| 408 | default: |
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| 409 | return 1024; // Default to 1Kb |
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| 410 | } |
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| 411 | } |
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| 412 | |
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| 413 | /** |
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| 414 | * Truncate an UTF-8 encoded sting correctly |
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| 415 | * |
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| 416 | * If it's not possible to truncate properly, an empty string is returned |
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| 417 | * |
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| 418 | * @param string $string - the string |
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| 419 | * @param string $length - position where string should be cut |
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| 420 | * @return string truncated string |
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| 421 | */ |
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| 422 | static public function Utf8_truncate($string, $length) { |
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| 423 | // make sure length is always an interger |
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| 424 | $length = (int)$length; |
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| 425 | |
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| 426 | if (strlen($string) <= $length) |
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| 427 | return $string; |
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| 428 | |
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| 429 | while($length >= 0) { |
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| 430 | if ((ord($string[$length]) < 0x80) || (ord($string[$length]) >= 0xC0)) |
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| 431 | return substr($string, 0, $length); |
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| 432 | |
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| 433 | $length--; |
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| 434 | } |
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| 435 | return ""; |
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| 436 | } |
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| 437 | |
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| 438 | /** |
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| 439 | * Indicates if the specified folder type is a system folder |
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| 440 | * |
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| 441 | * @param int $foldertype |
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| 442 | * |
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| 443 | * @access public |
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| 444 | * @return boolean |
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| 445 | */ |
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| 446 | static public function IsSystemFolder($foldertype) { |
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| 447 | return ($foldertype == SYNC_FOLDER_TYPE_INBOX || $foldertype == SYNC_FOLDER_TYPE_DRAFTS || $foldertype == SYNC_FOLDER_TYPE_WASTEBASKET || $foldertype == SYNC_FOLDER_TYPE_SENTMAIL || |
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| 448 | $foldertype == SYNC_FOLDER_TYPE_OUTBOX || $foldertype == SYNC_FOLDER_TYPE_TASK || $foldertype == SYNC_FOLDER_TYPE_APPOINTMENT || $foldertype == SYNC_FOLDER_TYPE_CONTACT || |
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| 449 | $foldertype == SYNC_FOLDER_TYPE_NOTE || $foldertype == SYNC_FOLDER_TYPE_JOURNAL) ? true:false; |
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| 450 | } |
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| 451 | |
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| 452 | /** |
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| 453 | * Our own utf7_decode function because imap_utf7_decode converts a string |
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| 454 | * into ISO-8859-1 encoding which doesn't have euro sign (it will be converted |
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| 455 | * into two chars: [space](ascii 32) and "¬" ("not sign", ascii 172)). Also |
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| 456 | * php iconv function expects '+' as delimiter instead of '&' like in IMAP. |
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| 457 | * |
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| 458 | * @param string $string IMAP folder name |
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| 459 | * |
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| 460 | * @access public |
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| 461 | * @return string |
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| 462 | */ |
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| 463 | static public function Utf7_iconv_decode($string) { |
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| 464 | //do not alter string if there aren't any '&' or '+' chars because |
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| 465 | //it won't have any utf7-encoded chars and nothing has to be escaped. |
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| 466 | if (strpos($string, '&') === false && strpos($string, '+') === false ) return $string; |
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| 467 | |
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| 468 | //Get the string length and go back through it making the replacements |
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| 469 | //necessary |
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| 470 | $len = strlen($string) - 1; |
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| 471 | while ($len > 0) { |
---|
| 472 | //look for '&-' sequence and replace it with '&' |
---|
| 473 | if ($len > 0 && $string{($len-1)} == '&' && $string{$len} == '-') { |
---|
| 474 | $string = substr_replace($string, '&', $len - 1, 2); |
---|
| 475 | $len--; //decrease $len as this char has alreasy been processed |
---|
| 476 | } |
---|
| 477 | //search for '&' which weren't found in if clause above and |
---|
| 478 | //replace them with '+' as they mark an utf7-encoded char |
---|
| 479 | if ($len > 0 && $string{($len-1)} == '&') { |
---|
| 480 | $string = substr_replace($string, '+', $len - 1, 1); |
---|
| 481 | $len--; //decrease $len as this char has alreasy been processed |
---|
| 482 | } |
---|
| 483 | //finally "escape" all remaining '+' chars |
---|
| 484 | if ($len > 0 && $string{($len-1)} == '+') { |
---|
| 485 | $string = substr_replace($string, '+-', $len - 1, 1); |
---|
| 486 | } |
---|
| 487 | $len--; |
---|
| 488 | } |
---|
| 489 | return $string; |
---|
| 490 | } |
---|
| 491 | |
---|
| 492 | /** |
---|
| 493 | * Our own utf7_encode function because the string has to be converted from |
---|
| 494 | * standard UTF7 into modified UTF7 (aka UTF7-IMAP). |
---|
| 495 | * |
---|
| 496 | * @param string $str IMAP folder name |
---|
| 497 | * |
---|
| 498 | * @access public |
---|
| 499 | * @return string |
---|
| 500 | */ |
---|
| 501 | static public function Utf7_iconv_encode($string) { |
---|
| 502 | //do not alter string if there aren't any '&' or '+' chars because |
---|
| 503 | //it won't have any utf7-encoded chars and nothing has to be escaped. |
---|
| 504 | if (strpos($string, '&') === false && strpos($string, '+') === false ) return $string; |
---|
| 505 | |
---|
| 506 | //Get the string length and go back through it making the replacements |
---|
| 507 | //necessary |
---|
| 508 | $len = strlen($string) - 1; |
---|
| 509 | while ($len > 0) { |
---|
| 510 | //look for '&-' sequence and replace it with '&' |
---|
| 511 | if ($len > 0 && $string{($len-1)} == '+' && $string{$len} == '-') { |
---|
| 512 | $string = substr_replace($string, '+', $len - 1, 2); |
---|
| 513 | $len--; //decrease $len as this char has alreasy been processed |
---|
| 514 | } |
---|
| 515 | //search for '&' which weren't found in if clause above and |
---|
| 516 | //replace them with '+' as they mark an utf7-encoded char |
---|
| 517 | if ($len > 0 && $string{($len-1)} == '+') { |
---|
| 518 | $string = substr_replace($string, '&', $len - 1, 1); |
---|
| 519 | $len--; //decrease $len as this char has alreasy been processed |
---|
| 520 | } |
---|
| 521 | //finally "escape" all remaining '+' chars |
---|
| 522 | if ($len > 0 && $string{($len-1)} == '&') { |
---|
| 523 | $string = substr_replace($string, '&-', $len - 1, 1); |
---|
| 524 | } |
---|
| 525 | $len--; |
---|
| 526 | } |
---|
| 527 | return $string; |
---|
| 528 | } |
---|
| 529 | |
---|
| 530 | /** |
---|
| 531 | * Converts an UTF-7 encoded string into an UTF-8 string. |
---|
| 532 | * |
---|
| 533 | * @param string $string to convert |
---|
| 534 | * |
---|
| 535 | * @access public |
---|
| 536 | * @return string |
---|
| 537 | */ |
---|
| 538 | static public function Utf7_to_utf8($string) { |
---|
| 539 | if (function_exists("iconv")){ |
---|
| 540 | return @iconv("UTF-7", "UTF-8", $string); |
---|
| 541 | } |
---|
| 542 | return $string; |
---|
| 543 | } |
---|
| 544 | |
---|
| 545 | /** |
---|
| 546 | * Converts an UTF-8 encoded string into an UTF-7 string. |
---|
| 547 | * |
---|
| 548 | * @param string $string to convert |
---|
| 549 | * |
---|
| 550 | * @access public |
---|
| 551 | * @return string |
---|
| 552 | */ |
---|
| 553 | static public function Utf8_to_utf7($string) { |
---|
| 554 | if (function_exists("iconv")){ |
---|
| 555 | return @iconv("UTF-8", "UTF-7", $string); |
---|
| 556 | } |
---|
| 557 | return $string; |
---|
| 558 | } |
---|
| 559 | |
---|
| 560 | /** |
---|
| 561 | * Checks for valid email addresses |
---|
| 562 | * The used regex actually only checks if a valid email address is part of the submitted string |
---|
| 563 | * it also returns true for the mailbox format, but this is not checked explicitly |
---|
| 564 | * |
---|
| 565 | * @param string $email address to be checked |
---|
| 566 | * |
---|
| 567 | * @access public |
---|
| 568 | * @return boolean |
---|
| 569 | */ |
---|
| 570 | static public function CheckEmail($email) { |
---|
| 571 | return (bool) preg_match('#([a-zA-Z0-9_\-])+(\.([a-zA-Z0-9_\-])+)*@((\[(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5])))\.(((([0-1])?([0-9])?[0-9])|(2[0-4][0-9])|(2[0-5][0-5]))\]))|((([a-zA-Z0-9])+(([\-])+([a-zA-Z0-9])+)*\.)+([a-zA-Z])+(([\-])+([a-zA-Z0-9])+)*)|localhost)#', $email); |
---|
| 572 | } |
---|
| 573 | |
---|
| 574 | /** |
---|
| 575 | * Checks if a string is base64 encoded |
---|
| 576 | * |
---|
| 577 | * @param string $string the string to be checked |
---|
| 578 | * |
---|
| 579 | * @access public |
---|
| 580 | * @return boolean |
---|
| 581 | */ |
---|
| 582 | static public function IsBase64String($string) { |
---|
| 583 | return (bool) preg_match("#^([A-Za-z0-9+/]{4})*([A-Za-z0-9+/]{2}==|[A-Za-z0-9+\/]{3}=|[A-Za-z0-9+/]{4})?$#", $string); |
---|
| 584 | } |
---|
| 585 | |
---|
| 586 | /** |
---|
| 587 | * Decodes base64 encoded query parameters. Based on dw2412 contribution. |
---|
| 588 | * |
---|
| 589 | * @param string $query the query to decode |
---|
| 590 | * |
---|
| 591 | * @access public |
---|
| 592 | * @return array |
---|
| 593 | */ |
---|
| 594 | static public function DecodeBase64URI($query) { |
---|
| 595 | /* |
---|
| 596 | * The query string has a following structure. Number in () is position: |
---|
| 597 | * 1 byte - protocoll version (0) |
---|
| 598 | * 1 byte - command code (1) |
---|
| 599 | * 2 bytes - locale (2) |
---|
| 600 | * 1 byte - device ID length (4) |
---|
| 601 | * variable - device ID (4+device ID length) |
---|
| 602 | * 1 byte - policy key length (5+device ID length) |
---|
| 603 | * 0 or 4 bytes - policy key (5+device ID length + policy key length) |
---|
| 604 | * 1 byte - device type length (6+device ID length + policy key length) |
---|
| 605 | * variable - device type (6+device ID length + policy key length + device type length) |
---|
| 606 | * variable - command parameters, array which consists of: |
---|
| 607 | * 1 byte - tag |
---|
| 608 | * 1 byte - length |
---|
| 609 | * variable - value of the parameter |
---|
| 610 | * |
---|
| 611 | */ |
---|
| 612 | $decoded = base64_decode($query); |
---|
| 613 | $devIdLength = ord($decoded[4]); //device ID length |
---|
| 614 | $polKeyLength = ord($decoded[5+$devIdLength]); //policy key length |
---|
| 615 | $devTypeLength = ord($decoded[6+$devIdLength+$polKeyLength]); //device type length |
---|
| 616 | //unpack the decoded query string values |
---|
| 617 | $unpackedQuery = unpack("CProtVer/CCommand/vLocale/CDevIDLen/H".($devIdLength*2)."DevID/CPolKeyLen".($polKeyLength == 4 ? "/VPolKey" : "")."/CDevTypeLen/A".($devTypeLength)."DevType", $decoded); |
---|
| 618 | |
---|
| 619 | //get the command parameters |
---|
| 620 | $pos = 7 + $devIdLength + $polKeyLength + $devTypeLength; |
---|
| 621 | $decoded = substr($decoded, $pos); |
---|
| 622 | while (strlen($decoded) > 0) { |
---|
| 623 | $paramLength = ord($decoded[1]); |
---|
| 624 | $unpackedParam = unpack("CParamTag/CParamLength/A".$paramLength."ParamValue", $decoded); |
---|
| 625 | $unpackedQuery[ord($decoded[0])] = $unpackedParam['ParamValue']; |
---|
| 626 | //remove parameter from decoded query string |
---|
| 627 | $decoded = substr($decoded, 2 + $paramLength); |
---|
| 628 | } |
---|
| 629 | return $unpackedQuery; |
---|
| 630 | } |
---|
| 631 | |
---|
| 632 | /** |
---|
| 633 | * Returns a command string for a given command code. |
---|
| 634 | * |
---|
| 635 | * @param int $code |
---|
| 636 | * |
---|
| 637 | * @access public |
---|
| 638 | * @return string or false if code is unknown |
---|
| 639 | */ |
---|
| 640 | public static function GetCommandFromCode($code) { |
---|
| 641 | switch ($code) { |
---|
| 642 | case ZPush::COMMAND_SYNC: return 'Sync'; |
---|
| 643 | case ZPush::COMMAND_SENDMAIL: return 'SendMail'; |
---|
| 644 | case ZPush::COMMAND_SMARTFORWARD: return 'SmartForward'; |
---|
| 645 | case ZPush::COMMAND_SMARTREPLY: return 'SmartReply'; |
---|
| 646 | case ZPush::COMMAND_GETATTACHMENT: return 'GetAttachment'; |
---|
| 647 | case ZPush::COMMAND_FOLDERSYNC: return 'FolderSync'; |
---|
| 648 | case ZPush::COMMAND_FOLDERCREATE: return 'FolderCreate'; |
---|
| 649 | case ZPush::COMMAND_FOLDERDELETE: return 'FolderDelete'; |
---|
| 650 | case ZPush::COMMAND_FOLDERUPDATE: return 'FolderUpdate'; |
---|
| 651 | case ZPush::COMMAND_MOVEITEMS: return 'MoveItems'; |
---|
| 652 | case ZPush::COMMAND_GETITEMESTIMATE: return 'GetItemEstimate'; |
---|
| 653 | case ZPush::COMMAND_MEETINGRESPONSE: return 'MeetingResponse'; |
---|
| 654 | case ZPush::COMMAND_SEARCH: return 'Search'; |
---|
| 655 | case ZPush::COMMAND_SETTINGS: return 'Settings'; |
---|
| 656 | case ZPush::COMMAND_PING: return 'Ping'; |
---|
| 657 | case ZPush::COMMAND_ITEMOPERATIONS: return 'ItemOperations'; |
---|
| 658 | case ZPush::COMMAND_PROVISION: return 'Provision'; |
---|
| 659 | case ZPush::COMMAND_RESOLVERECIPIENTS: return 'ResolveRecipients'; |
---|
| 660 | case ZPush::COMMAND_VALIDATECERT: return 'ValidateCert'; |
---|
| 661 | |
---|
| 662 | // Deprecated commands |
---|
| 663 | case ZPush::COMMAND_GETHIERARCHY: return 'GetHierarchy'; |
---|
| 664 | case ZPush::COMMAND_CREATECOLLECTION: return 'CreateCollection'; |
---|
| 665 | case ZPush::COMMAND_DELETECOLLECTION: return 'DeleteCollection'; |
---|
| 666 | case ZPush::COMMAND_MOVECOLLECTION: return 'MoveCollection'; |
---|
| 667 | case ZPush::COMMAND_NOTIFY: return 'Notify'; |
---|
| 668 | |
---|
| 669 | // Webservice commands |
---|
| 670 | case ZPush::COMMAND_WEBSERVICE_DEVICE: return 'WebserviceDevice'; |
---|
| 671 | } |
---|
| 672 | return false; |
---|
| 673 | } |
---|
| 674 | |
---|
| 675 | /** |
---|
| 676 | * Returns a command code for a given command. |
---|
| 677 | * |
---|
| 678 | * @param string $command |
---|
| 679 | * |
---|
| 680 | * @access public |
---|
| 681 | * @return int or false if command is unknown |
---|
| 682 | */ |
---|
| 683 | public static function GetCodeFromCommand($command) { |
---|
| 684 | switch ($command) { |
---|
| 685 | case 'Sync': return ZPush::COMMAND_SYNC; |
---|
| 686 | case 'SendMail': return ZPush::COMMAND_SENDMAIL; |
---|
| 687 | case 'SmartForward': return ZPush::COMMAND_SMARTFORWARD; |
---|
| 688 | case 'SmartReply': return ZPush::COMMAND_SMARTREPLY; |
---|
| 689 | case 'GetAttachment': return ZPush::COMMAND_GETATTACHMENT; |
---|
| 690 | case 'FolderSync': return ZPush::COMMAND_FOLDERSYNC; |
---|
| 691 | case 'FolderCreate': return ZPush::COMMAND_FOLDERCREATE; |
---|
| 692 | case 'FolderDelete': return ZPush::COMMAND_FOLDERDELETE; |
---|
| 693 | case 'FolderUpdate': return ZPush::COMMAND_FOLDERUPDATE; |
---|
| 694 | case 'MoveItems': return ZPush::COMMAND_MOVEITEMS; |
---|
| 695 | case 'GetItemEstimate': return ZPush::COMMAND_GETITEMESTIMATE; |
---|
| 696 | case 'MeetingResponse': return ZPush::COMMAND_MEETINGRESPONSE; |
---|
| 697 | case 'Search': return ZPush::COMMAND_SEARCH; |
---|
| 698 | case 'Settings': return ZPush::COMMAND_SETTINGS; |
---|
| 699 | case 'Ping': return ZPush::COMMAND_PING; |
---|
| 700 | case 'ItemOperations': return ZPush::COMMAND_ITEMOPERATIONS; |
---|
| 701 | case 'Provision': return ZPush::COMMAND_PROVISION; |
---|
| 702 | case 'ResolveRecipients': return ZPush::COMMAND_RESOLVERECIPIENTS; |
---|
| 703 | case 'ValidateCert': return ZPush::COMMAND_VALIDATECERT; |
---|
| 704 | |
---|
| 705 | // Deprecated commands |
---|
| 706 | case 'GetHierarchy': return ZPush::COMMAND_GETHIERARCHY; |
---|
| 707 | case 'CreateCollection': return ZPush::COMMAND_CREATECOLLECTION; |
---|
| 708 | case 'DeleteCollection': return ZPush::COMMAND_DELETECOLLECTION; |
---|
| 709 | case 'MoveCollection': return ZPush::COMMAND_MOVECOLLECTION; |
---|
| 710 | case 'Notify': return ZPush::COMMAND_NOTIFY; |
---|
| 711 | |
---|
| 712 | // Webservice commands |
---|
| 713 | case 'WebserviceDevice': return ZPush::COMMAND_WEBSERVICE_DEVICE; |
---|
| 714 | } |
---|
| 715 | return false; |
---|
| 716 | } |
---|
| 717 | |
---|
| 718 | /** |
---|
| 719 | * Normalize the given timestamp to the start of the day |
---|
| 720 | * |
---|
| 721 | * @param long $timestamp |
---|
| 722 | * |
---|
| 723 | * @access private |
---|
| 724 | * @return long |
---|
| 725 | */ |
---|
| 726 | public static function getDayStartOfTimestamp($timestamp) { |
---|
| 727 | return $timestamp - ($timestamp % (60 * 60 * 24)); |
---|
| 728 | } |
---|
| 729 | |
---|
| 730 | /** |
---|
| 731 | * Returns a formatted string output from an optional timestamp. |
---|
| 732 | * If no timestamp is sent, NOW is used. |
---|
| 733 | * |
---|
| 734 | * @param long $timestamp |
---|
| 735 | * |
---|
| 736 | * @access public |
---|
| 737 | * @return string |
---|
| 738 | */ |
---|
| 739 | public static function GetFormattedTime($timestamp = false) { |
---|
| 740 | if (!$timestamp) |
---|
| 741 | return @strftime("%d/%m/%Y %H:%M:%S"); |
---|
| 742 | else |
---|
| 743 | return @strftime("%d/%m/%Y %H:%M:%S", $timestamp); |
---|
| 744 | } |
---|
| 745 | |
---|
| 746 | |
---|
| 747 | /** |
---|
| 748 | * Get charset name from a codepage |
---|
| 749 | * |
---|
| 750 | * @see http://msdn.microsoft.com/en-us/library/dd317756(VS.85).aspx |
---|
| 751 | * |
---|
| 752 | * Table taken from common/codepage.cpp |
---|
| 753 | * |
---|
| 754 | * @param integer codepage Codepage |
---|
| 755 | * |
---|
| 756 | * @access public |
---|
| 757 | * @return string iconv-compatible charset name |
---|
| 758 | */ |
---|
| 759 | public static function GetCodepageCharset($codepage) { |
---|
| 760 | $codepages = array( |
---|
| 761 | 20106 => "DIN_66003", |
---|
| 762 | 20108 => "NS_4551-1", |
---|
| 763 | 20107 => "SEN_850200_B", |
---|
| 764 | 950 => "big5", |
---|
| 765 | 50221 => "csISO2022JP", |
---|
| 766 | 51932 => "euc-jp", |
---|
| 767 | 51936 => "euc-cn", |
---|
| 768 | 51949 => "euc-kr", |
---|
| 769 | 949 => "euc-kr", |
---|
| 770 | 936 => "gb18030", |
---|
| 771 | 52936 => "csgb2312", |
---|
| 772 | 852 => "ibm852", |
---|
| 773 | 866 => "ibm866", |
---|
| 774 | 50220 => "iso-2022-jp", |
---|
| 775 | 50222 => "iso-2022-jp", |
---|
| 776 | 50225 => "iso-2022-kr", |
---|
| 777 | 1252 => "windows-1252", |
---|
| 778 | 28591 => "iso-8859-1", |
---|
| 779 | 28592 => "iso-8859-2", |
---|
| 780 | 28593 => "iso-8859-3", |
---|
| 781 | 28594 => "iso-8859-4", |
---|
| 782 | 28595 => "iso-8859-5", |
---|
| 783 | 28596 => "iso-8859-6", |
---|
| 784 | 28597 => "iso-8859-7", |
---|
| 785 | 28598 => "iso-8859-8", |
---|
| 786 | 28599 => "iso-8859-9", |
---|
| 787 | 28603 => "iso-8859-13", |
---|
| 788 | 28605 => "iso-8859-15", |
---|
| 789 | 20866 => "koi8-r", |
---|
| 790 | 21866 => "koi8-u", |
---|
| 791 | 932 => "shift-jis", |
---|
| 792 | 1200 => "unicode", |
---|
| 793 | 1201 => "unicodebig", |
---|
| 794 | 65000 => "utf-7", |
---|
| 795 | 65001 => "utf-8", |
---|
| 796 | 1250 => "windows-1250", |
---|
| 797 | 1251 => "windows-1251", |
---|
| 798 | 1253 => "windows-1253", |
---|
| 799 | 1254 => "windows-1254", |
---|
| 800 | 1255 => "windows-1255", |
---|
| 801 | 1256 => "windows-1256", |
---|
| 802 | 1257 => "windows-1257", |
---|
| 803 | 1258 => "windows-1258", |
---|
| 804 | 874 => "windows-874", |
---|
| 805 | 20127 => "us-ascii" |
---|
| 806 | ); |
---|
| 807 | |
---|
| 808 | if(isset($codepages[$codepage])) { |
---|
| 809 | return $codepages[$codepage]; |
---|
| 810 | } else { |
---|
| 811 | // Defaulting to iso-8859-15 since it is more likely for someone to make a mistake in the codepage |
---|
| 812 | // when using west-european charsets then when using other charsets since utf-8 is binary compatible |
---|
| 813 | // with the bottom 7 bits of west-european |
---|
| 814 | return "iso-8859-15"; |
---|
| 815 | } |
---|
| 816 | } |
---|
| 817 | |
---|
| 818 | /** |
---|
| 819 | * Converts a string encoded with codepage into an UTF-8 string |
---|
| 820 | * |
---|
| 821 | * @param int $codepage |
---|
| 822 | * @param string $string |
---|
| 823 | * |
---|
| 824 | * @access public |
---|
| 825 | * @return string |
---|
| 826 | */ |
---|
| 827 | public static function ConvertCodepageStringToUtf8($codepage, $string) { |
---|
| 828 | if (function_exists("iconv")) { |
---|
| 829 | $charset = self::GetCodepageCharset($codepage); |
---|
| 830 | |
---|
| 831 | return iconv($charset, "utf-8", $string); |
---|
| 832 | } |
---|
| 833 | return $string; |
---|
| 834 | } |
---|
| 835 | |
---|
| 836 | /** |
---|
| 837 | * Returns the best match of preferred body preference types. |
---|
| 838 | * |
---|
| 839 | * @param array $bpTypes |
---|
| 840 | * |
---|
| 841 | * @access public |
---|
| 842 | * @return int |
---|
| 843 | */ |
---|
| 844 | public static function GetBodyPreferenceBestMatch($bpTypes) { |
---|
| 845 | // The best choice is RTF, then HTML and then MIME in order to save bandwidth |
---|
| 846 | // because MIME is a complete message including the headers and attachments |
---|
| 847 | if (in_array(SYNC_BODYPREFERENCE_RTF, $bpTypes)) return SYNC_BODYPREFERENCE_RTF; |
---|
| 848 | if (in_array(SYNC_BODYPREFERENCE_HTML, $bpTypes)) return SYNC_BODYPREFERENCE_HTML; |
---|
| 849 | if (in_array(SYNC_BODYPREFERENCE_MIME, $bpTypes)) return SYNC_BODYPREFERENCE_MIME; |
---|
| 850 | return SYNC_BODYPREFERENCE_PLAIN; |
---|
| 851 | } |
---|
| 852 | |
---|
| 853 | /* BEGIN fmbiete's contribution r1516, ZP-318 */ |
---|
| 854 | /** |
---|
| 855 | * Converts a html string into a plain text string |
---|
| 856 | * |
---|
| 857 | * @param string $html |
---|
| 858 | * |
---|
| 859 | * @access public |
---|
| 860 | * @return string |
---|
| 861 | */ |
---|
| 862 | public static function ConvertHtmlToText($html) { |
---|
| 863 | // remove css-style tags |
---|
| 864 | $plaintext = preg_replace("/<style.*?<\/style>/is", "", $html); |
---|
| 865 | // remove all other html |
---|
| 866 | $plaintext = strip_tags($plaintext); |
---|
| 867 | |
---|
| 868 | return $plaintext; |
---|
| 869 | } |
---|
| 870 | /* END fmbiete's contribution r1516, ZP-318 */ |
---|
| 871 | } |
---|
| 872 | |
---|
| 873 | |
---|
| 874 | |
---|
| 875 | // TODO Win1252/UTF8 functions are deprecated and will be removed sometime |
---|
| 876 | //if the ICS backend is loaded in CombinedBackend and Zarafa > 7 |
---|
| 877 | //STORE_SUPPORTS_UNICODE is true and the convertion will not be done |
---|
| 878 | //for other backends. |
---|
| 879 | function utf8_to_windows1252($string, $option = "", $force_convert = false) { |
---|
| 880 | //if the store supports unicode return the string without converting it |
---|
| 881 | if (!$force_convert && defined('STORE_SUPPORTS_UNICODE') && STORE_SUPPORTS_UNICODE == true) return $string; |
---|
| 882 | |
---|
| 883 | if (function_exists("iconv")){ |
---|
| 884 | return @iconv("UTF-8", "Windows-1252" . $option, $string); |
---|
| 885 | }else{ |
---|
| 886 | return utf8_decode($string); // no euro support here |
---|
| 887 | } |
---|
| 888 | } |
---|
| 889 | |
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| 890 | function windows1252_to_utf8($string, $option = "", $force_convert = false) { |
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| 891 | //if the store supports unicode return the string without converting it |
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| 892 | if (!$force_convert && defined('STORE_SUPPORTS_UNICODE') && STORE_SUPPORTS_UNICODE == true) return $string; |
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| 893 | |
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| 894 | if (function_exists("iconv")){ |
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| 895 | return @iconv("Windows-1252", "UTF-8" . $option, $string); |
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| 896 | }else{ |
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| 897 | return utf8_encode($string); // no euro support here |
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| 898 | } |
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| 899 | } |
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| 900 | |
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| 901 | function w2u($string) { return windows1252_to_utf8($string); } |
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| 902 | function u2w($string) { return utf8_to_windows1252($string); } |
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| 903 | |
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| 904 | function w2ui($string) { return windows1252_to_utf8($string, "//TRANSLIT"); } |
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| 905 | function u2wi($string) { return utf8_to_windows1252($string, "//TRANSLIT"); } |
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| 906 | |
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| 907 | |
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| 908 | ?> |
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