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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