[7589] | 1 | <?php |
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| 2 | /*********************************************** |
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| 3 | * File : z_ical.php |
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| 4 | * Project : Z-Push |
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| 5 | * Descr : This is a very basic iCalendar parser |
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| 6 | * used to process incoming meeting requests |
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| 7 | * and responses. |
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| 8 | * |
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| 9 | * Created : 01.12.2008 |
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| 10 | * |
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| 11 | * Copyright 2007 - 2012 Zarafa Deutschland GmbH |
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| 12 | * |
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| 13 | * This program is free software: you can redistribute it and/or modify |
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| 14 | * it under the terms of the GNU Affero General Public License, version 3, |
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| 15 | * as published by the Free Software Foundation with the following additional |
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| 16 | * term according to sec. 7: |
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| 17 | * |
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| 18 | * According to sec. 7 of the GNU Affero General Public License, version 3, |
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| 19 | * the terms of the AGPL are supplemented with the following terms: |
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| 20 | * |
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| 21 | * "Zarafa" is a registered trademark of Zarafa B.V. |
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| 22 | * "Z-Push" is a registered trademark of Zarafa Deutschland GmbH |
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| 23 | * The licensing of the Program under the AGPL does not imply a trademark license. |
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| 24 | * Therefore any rights, title and interest in our trademarks remain entirely with us. |
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| 25 | * |
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| 26 | * However, if you propagate an unmodified version of the Program you are |
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| 27 | * allowed to use the term "Z-Push" to indicate that you distribute the Program. |
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| 28 | * Furthermore you may use our trademarks where it is necessary to indicate |
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| 29 | * the intended purpose of a product or service provided you use it in accordance |
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| 30 | * with honest practices in industrial or commercial matters. |
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| 31 | * If you want to propagate modified versions of the Program under the name "Z-Push", |
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| 32 | * you may only do so if you have a written permission by Zarafa Deutschland GmbH |
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| 33 | * (to acquire a permission please contact Zarafa at trademark@zarafa.com). |
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| 34 | * |
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| 35 | * This program is distributed in the hope that it will be useful, |
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| 36 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 37 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 38 | * GNU Affero General Public License for more details. |
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| 39 | * |
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| 40 | * You should have received a copy of the GNU Affero General Public License |
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| 41 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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| 42 | * |
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| 43 | * Consult LICENSE file for details |
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| 44 | ************************************************/ |
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| 45 | |
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| 46 | class ICalParser{ |
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| 47 | private $props; |
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| 48 | |
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| 49 | /** |
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| 50 | * Constructor |
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| 51 | * |
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| 52 | * @param mapistore $store |
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| 53 | * @param array &$props properties to be set |
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| 54 | * |
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| 55 | * @access public |
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| 56 | */ |
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| 57 | public function ICalParser(&$store, &$props){ |
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| 58 | $this->props = $props; |
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| 59 | } |
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| 60 | |
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| 61 | /** |
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| 62 | * Function reads calendar part and puts mapi properties into an array. |
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| 63 | * |
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| 64 | * @param string $ical the ical data |
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| 65 | * @param array &$mapiprops mapi properties |
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| 66 | * |
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| 67 | * @access public |
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| 68 | */ |
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| 69 | public function ExtractProps($ical, &$mapiprops) { |
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| 70 | //mapping between partstat in ical and MAPI Meeting Response classes as well as icons |
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| 71 | $aClassMap = array( |
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| 72 | "ACCEPTED" => array("class" => "IPM.Schedule.Meeting.Resp.Pos", "icon" => 0x405), |
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| 73 | "DECLINED" => array("class" => "IPM.Schedule.Meeting.Resp.Neg", "icon" => 0x406), |
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| 74 | "TENTATIVE" => array("class" => "IPM.Schedule.Meeting.Resp.Tent", "icon" => 0x407), |
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| 75 | "NEEDS-ACTION" => array("class" => "IPM.Schedule.Meeting.Request", "icon" => 0x404), //iphone |
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| 76 | "REQ-PARTICIPANT" => array("class" => "IPM.Schedule.Meeting.Request", "icon" => 0x404), //nokia |
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| 77 | ); |
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| 78 | |
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| 79 | $aical = preg_split("/[\n]/", $ical); |
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| 80 | $elemcount = count($aical); |
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| 81 | $i=0; |
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| 82 | $nextline = $aical[0]; |
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| 83 | |
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| 84 | //last element is empty |
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| 85 | while ($i < $elemcount - 1) { |
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| 86 | $line = $nextline; |
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| 87 | $nextline = $aical[$i+1]; |
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| 88 | |
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| 89 | //if a line starts with a space or a tab it belongs to the previous line |
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| 90 | while (strlen($nextline) > 0 && ($nextline{0} == " " || $nextline{0} == "\t")) { |
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| 91 | $line = rtrim($line) . substr($nextline, 1); |
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| 92 | $nextline = $aical[++$i + 1]; |
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| 93 | } |
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| 94 | $line = rtrim($line); |
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| 95 | |
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| 96 | switch (strtoupper($line)) { |
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| 97 | case "BEGIN:VCALENDAR": |
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| 98 | case "BEGIN:VEVENT": |
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| 99 | case "END:VEVENT": |
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| 100 | case "END:VCALENDAR": |
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| 101 | break; |
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| 102 | default: |
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| 103 | unset ($field, $data, $prop_pos, $property); |
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| 104 | if (preg_match ("/([^:]+):(.*)/", $line, $line)){ |
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| 105 | $field = $line[1]; |
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| 106 | $data = $line[2]; |
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| 107 | $property = $field; |
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| 108 | $prop_pos = strpos($property,';'); |
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| 109 | if ($prop_pos !== false) $property = substr($property, 0, $prop_pos); |
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| 110 | $property = strtoupper($property); |
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| 111 | |
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| 112 | switch ($property) { |
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| 113 | case 'DTSTART': |
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| 114 | $data = $this->getTimestampFromStreamerDate($data); |
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| 115 | $mapiprops[$this->props["starttime"]] = $mapiprops[$this->props["commonstart"]] = $mapiprops[$this->props["clipstart"]] = $mapiprops[PR_START_DATE] = $data; |
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| 116 | break; |
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| 117 | |
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| 118 | case 'DTEND': |
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| 119 | $data = $this->getTimestampFromStreamerDate($data); |
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| 120 | $mapiprops[$this->props["endtime"]] = $mapiprops[$this->props["commonend"]] = $mapiprops[$this->props["recurrenceend"]] = $mapiprops[PR_END_DATE] = $data; |
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| 121 | break; |
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| 122 | |
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| 123 | case 'UID': |
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| 124 | $mapiprops[$this->props["goidtag"]] = $mapiprops[$this->props["goid2tag"]] = Utils::GetOLUidFromICalUid($data); |
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| 125 | break; |
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| 126 | |
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| 127 | case 'ATTENDEE': |
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| 128 | $fields = explode(";", $field); |
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| 129 | foreach ($fields as $field) { |
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| 130 | $prop_pos = strpos($field, '='); |
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| 131 | if ($prop_pos !== false) { |
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| 132 | switch (substr($field, 0, $prop_pos)) { |
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| 133 | case 'PARTSTAT' : $partstat = substr($field, $prop_pos+1); break; |
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| 134 | case 'CN' : $cn = substr($field, $prop_pos+1); break; |
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| 135 | case 'ROLE' : $role = substr($field, $prop_pos+1); break; |
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| 136 | case 'RSVP' : $rsvp = substr($field, $prop_pos+1); break; |
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| 137 | } |
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| 138 | } |
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| 139 | } |
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| 140 | if (isset($partstat) && isset($aClassMap[$partstat]) && |
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| 141 | |
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| 142 | (!isset($mapiprops[PR_MESSAGE_CLASS]) || $mapiprops[PR_MESSAGE_CLASS] == "IPM.Schedule.Meeting.Request")) { |
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| 143 | $mapiprops[PR_MESSAGE_CLASS] = $aClassMap[$partstat]['class']; |
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| 144 | $mapiprops[PR_ICON_INDEX] = $aClassMap[$partstat]['icon']; |
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| 145 | } |
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| 146 | // START ADDED dw2412 to support meeting requests on HTC Android Mail App |
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| 147 | elseif (isset($role) && isset($aClassMap[$role]) && |
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| 148 | (!isset($mapiprops[PR_MESSAGE_CLASS]) || $mapiprops[PR_MESSAGE_CLASS] == "IPM.Schedule.Meeting.Request")) { |
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| 149 | $mapiprops[PR_MESSAGE_CLASS] = $aClassMap[$role]['class']; |
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| 150 | $mapiprops[PR_ICON_INDEX] = $aClassMap[$role]['icon']; |
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| 151 | } |
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| 152 | // END ADDED dw2412 to support meeting requests on HTC Android Mail App |
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| 153 | if (!isset($cn)) $cn = ""; |
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| 154 | $data = str_replace ("MAILTO:", "", $data); |
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| 155 | $attendee[] = array ('name' => stripslashes($cn), 'email' => stripslashes($data)); |
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| 156 | break; |
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| 157 | |
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| 158 | case 'ORGANIZER': |
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| 159 | $field = str_replace("ORGANIZER;CN=", "", $field); |
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| 160 | $data = str_replace ("MAILTO:", "", $data); |
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| 161 | $organizer[] = array ('name' => stripslashes($field), 'email' => stripslashes($data)); |
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| 162 | break; |
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| 163 | |
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| 164 | case 'LOCATION': |
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| 165 | $data = str_replace("\\n", "<br />", $data); |
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| 166 | $data = str_replace("\\t", " ", $data); |
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| 167 | $data = str_replace("\\r", "<br />", $data); |
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| 168 | $data = stripslashes($data); |
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| 169 | $mapiprops[$this->props["tneflocation"]] = $mapiprops[$this->props["location"]] = $data; |
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| 170 | break; |
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| 171 | } |
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| 172 | } |
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| 173 | break; |
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| 174 | } |
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| 175 | $i++; |
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| 176 | |
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| 177 | } |
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| 178 | $mapiprops[$this->props["usetnef"]] = true; |
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| 179 | } |
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| 180 | |
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| 181 | /** |
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| 182 | * Converts an YYYYMMDDTHHMMSSZ kind of string into an unixtimestamp |
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| 183 | * |
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| 184 | * @param string $data |
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| 185 | * |
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| 186 | * @access private |
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| 187 | * @return long |
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| 188 | */ |
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| 189 | private function getTimestampFromStreamerDate ($data) { |
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| 190 | $data = str_replace('Z', '', $data); |
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| 191 | $data = str_replace('T', '', $data); |
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| 192 | |
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| 193 | preg_match ('/([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{0,2})([0-9]{0,2})([0-9]{0,2})/', $data, $regs); |
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| 194 | if ($regs[1] < 1970) { |
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| 195 | $regs[1] = '1971'; |
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| 196 | } |
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| 197 | return gmmktime($regs[4], $regs[5], $regs[6], $regs[2], $regs[3], $regs[1]); |
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| 198 | } |
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| 199 | } |
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| 200 | |
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| 201 | ?> |
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