0
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1 <?php
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2
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3 /**
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4 +-----------------------------------------------------------------------+
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5 | This file is part of the Roundcube Webmail client |
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6 | Copyright (C) 2008-2012, The Roundcube Dev Team |
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7 | |
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8 | Licensed under the GNU General Public License version 3 or |
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9 | any later version with exceptions for skins & plugins. |
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10 | See the README file for a full license statement. |
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11 | |
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12 | PURPOSE: |
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13 | Logical representation of a vcard address record |
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14 +-----------------------------------------------------------------------+
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15 | Author: Thomas Bruederli <roundcube@gmail.com> |
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16 | Author: Aleksander Machniak <alec@alec.pl> |
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17 +-----------------------------------------------------------------------+
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18 */
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19
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20 /**
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21 * Logical representation of a vcard-based address record
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22 * Provides functions to parse and export vCard data format
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23 *
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24 * @package Framework
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25 * @subpackage Addressbook
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26 */
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27 class rcube_vcard
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28 {
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29 private static $values_decoded = false;
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30 private $raw = array(
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31 'FN' => array(),
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32 'N' => array(array('','','','','')),
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33 );
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34 private static $fieldmap = array(
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35 'phone' => 'TEL',
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36 'birthday' => 'BDAY',
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37 'website' => 'URL',
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38 'notes' => 'NOTE',
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39 'email' => 'EMAIL',
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40 'address' => 'ADR',
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41 'jobtitle' => 'TITLE',
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42 'department' => 'X-DEPARTMENT',
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43 'gender' => 'X-GENDER',
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44 'maidenname' => 'X-MAIDENNAME',
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45 'anniversary' => 'X-ANNIVERSARY',
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46 'assistant' => 'X-ASSISTANT',
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47 'manager' => 'X-MANAGER',
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48 'spouse' => 'X-SPOUSE',
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49 'edit' => 'X-AB-EDIT',
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50 'groups' => 'CATEGORIES',
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51 );
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52 private $typemap = array(
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53 'IPHONE' => 'mobile',
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54 'CELL' => 'mobile',
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55 'WORK,FAX' => 'workfax',
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56 );
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57 private $phonetypemap = array(
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58 'HOME1' => 'HOME',
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59 'BUSINESS1' => 'WORK',
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60 'BUSINESS2' => 'WORK2',
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61 'BUSINESSFAX' => 'WORK,FAX',
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62 'MOBILE' => 'CELL',
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63 );
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64 private $addresstypemap = array(
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65 'BUSINESS' => 'WORK',
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66 );
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67 private $immap = array(
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68 'X-JABBER' => 'jabber',
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69 'X-ICQ' => 'icq',
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70 'X-MSN' => 'msn',
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71 'X-AIM' => 'aim',
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72 'X-YAHOO' => 'yahoo',
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73 'X-SKYPE' => 'skype',
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74 'X-SKYPE-USERNAME' => 'skype',
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75 );
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76
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77 public $business = false;
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78 public $displayname;
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79 public $surname;
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80 public $firstname;
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81 public $middlename;
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82 public $nickname;
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83 public $organization;
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84 public $email = array();
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85
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86 public static $eol = "\r\n";
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87
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88
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89 /**
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90 * Constructor
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91 */
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92 public function __construct($vcard = null, $charset = RCUBE_CHARSET, $detect = false, $fieldmap = array())
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93 {
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94 if (!empty($fieldmap)) {
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95 $this->extend_fieldmap($fieldmap);
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96 }
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97
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98 if (!empty($vcard)) {
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99 $this->load($vcard, $charset, $detect);
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100 }
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101 }
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102
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103 /**
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104 * Load record from (internal, unfolded) vcard 3.0 format
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105 *
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106 * @param string vCard string to parse
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107 * @param string Charset of string values
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108 * @param boolean True if loading a 'foreign' vcard and extra heuristics for charset detection is required
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109 */
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110 public function load($vcard, $charset = RCUBE_CHARSET, $detect = false)
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111 {
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112 self::$values_decoded = false;
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113 $this->raw = self::vcard_decode(self::cleanup($vcard));
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114
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115 // resolve charset parameters
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116 if ($charset == null) {
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117 $this->raw = self::charset_convert($this->raw);
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118 }
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119 // vcard has encoded values and charset should be detected
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120 else if ($detect && self::$values_decoded
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121 && ($detected_charset = self::detect_encoding(self::vcard_encode($this->raw)))
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122 && $detected_charset != RCUBE_CHARSET
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123 ) {
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124 $this->raw = self::charset_convert($this->raw, $detected_charset);
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125 }
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126
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127 // find well-known address fields
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128 $this->displayname = $this->raw['FN'][0][0];
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129 $this->surname = $this->raw['N'][0][0];
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130 $this->firstname = $this->raw['N'][0][1];
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131 $this->middlename = $this->raw['N'][0][2];
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132 $this->nickname = $this->raw['NICKNAME'][0][0];
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133 $this->organization = $this->raw['ORG'][0][0];
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134 $this->business = ($this->raw['X-ABSHOWAS'][0][0] == 'COMPANY') || (join('', (array)$this->raw['N'][0]) == '' && !empty($this->organization));
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135
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136 foreach ((array)$this->raw['EMAIL'] as $i => $raw_email) {
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137 $this->email[$i] = is_array($raw_email) ? $raw_email[0] : $raw_email;
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138 }
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139
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140 // make the pref e-mail address the first entry in $this->email
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141 $pref_index = $this->get_type_index('EMAIL', 'pref');
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142 if ($pref_index > 0) {
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143 $tmp = $this->email[0];
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144 $this->email[0] = $this->email[$pref_index];
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145 $this->email[$pref_index] = $tmp;
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146 }
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147
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148 // fix broken vcards from Outlook that only supply ORG but not the required N or FN properties
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149 if (!strlen(trim($this->displayname . $this->surname . $this->firstname)) && strlen($this->organization)) {
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150 $this->displayname = $this->organization;
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151 }
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152 }
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153
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154 /**
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155 * Return vCard data as associative array to be unsed in Roundcube address books
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156 *
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157 * @return array Hash array with key-value pairs
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158 */
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159 public function get_assoc()
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160 {
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161 $out = array('name' => $this->displayname);
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162 $typemap = $this->typemap;
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163
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164 // copy name fields to output array
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165 foreach (array('firstname','surname','middlename','nickname','organization') as $col) {
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166 if (strlen($this->$col)) {
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167 $out[$col] = $this->$col;
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168 }
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169 }
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170
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171 if ($this->raw['N'][0][3])
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172 $out['prefix'] = $this->raw['N'][0][3];
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173 if ($this->raw['N'][0][4])
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174 $out['suffix'] = $this->raw['N'][0][4];
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175
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176 // convert from raw vcard data into associative data for Roundcube
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177 foreach (array_flip(self::$fieldmap) as $tag => $col) {
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178 foreach ((array)$this->raw[$tag] as $i => $raw) {
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179 if (is_array($raw)) {
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180 $k = -1;
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181 $key = $col;
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182 $subtype = '';
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183
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184 if (!empty($raw['type'])) {
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185 $combined = join(',', self::array_filter((array)$raw['type'], 'internet,pref', true));
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186 $combined = strtoupper($combined);
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187
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188 if ($typemap[$combined]) {
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189 $subtype = $typemap[$combined];
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190 }
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191 else if ($typemap[$raw['type'][++$k]]) {
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192 $subtype = $typemap[$raw['type'][$k]];
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193 }
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194 else {
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195 $subtype = strtolower($raw['type'][$k]);
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196 }
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197
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198 while ($k < count($raw['type']) && ($subtype == 'internet' || $subtype == 'pref')) {
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199 $subtype = $typemap[$raw['type'][++$k]] ?: strtolower($raw['type'][$k]);
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200 }
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201 }
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202
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203 // read vcard 2.1 subtype
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204 if (!$subtype) {
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205 foreach ($raw as $k => $v) {
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206 if (!is_numeric($k) && $v === true && ($k = strtolower($k))
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207 && !in_array($k, array('pref','internet','voice','base64'))
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208 ) {
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209 $k_uc = strtoupper($k);
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210 $subtype = $typemap[$k_uc] ?: $k;
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211 break;
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212 }
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213 }
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214 }
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215
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216 // force subtype if none set
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217 if (!$subtype && preg_match('/^(email|phone|address|website)/', $key)) {
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218 $subtype = 'other';
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219 }
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220
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221 if ($subtype) {
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222 $key .= ':' . $subtype;
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223 }
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224
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225 // split ADR values into assoc array
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226 if ($tag == 'ADR') {
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227 list(,, $value['street'], $value['locality'], $value['region'], $value['zipcode'], $value['country']) = $raw;
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228 $out[$key][] = $value;
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229 }
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230 else {
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231 $out[$key][] = $raw[0];
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232 }
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233 }
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234 else {
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235 $out[$col][] = $raw;
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236 }
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237 }
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238 }
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239
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240 // handle special IM fields as used by Apple
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241 foreach ($this->immap as $tag => $type) {
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242 foreach ((array)$this->raw[$tag] as $i => $raw) {
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243 $out['im:'.$type][] = $raw[0];
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244 }
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245 }
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246
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247 // copy photo data
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248 if ($this->raw['PHOTO']) {
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249 $out['photo'] = $this->raw['PHOTO'][0][0];
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250 }
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251
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252 return $out;
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253 }
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254
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255 /**
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256 * Convert the data structure into a vcard 3.0 string
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257 */
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258 public function export($folded = true)
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259 {
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260 $vcard = self::vcard_encode($this->raw);
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261 return $folded ? self::rfc2425_fold($vcard) : $vcard;
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262 }
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263
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264 /**
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265 * Clear the given fields in the loaded vcard data
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266 *
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267 * @param array List of field names to be reset
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268 */
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269 public function reset($fields = null)
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270 {
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271 if (!$fields) {
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272 $fields = array_merge(array_values(self::$fieldmap), array_keys($this->immap),
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273 array('FN','N','ORG','NICKNAME','EMAIL','ADR','BDAY'));
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274 }
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275
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276 foreach ($fields as $f) {
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277 unset($this->raw[$f]);
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278 }
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279
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280 if (!$this->raw['N']) {
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281 $this->raw['N'] = array(array('','','','',''));
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282 }
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283 if (!$this->raw['FN']) {
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284 $this->raw['FN'] = array();
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285 }
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286
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287 $this->email = array();
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288 }
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289
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290 /**
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291 * Setter for address record fields
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292 *
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293 * @param string Field name
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294 * @param string Field value
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295 * @param string Type/section name
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296 */
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297 public function set($field, $value, $type = 'HOME')
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298 {
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299 $field = strtolower($field);
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300 $type_uc = strtoupper($type);
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301
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302 switch ($field) {
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303 case 'name':
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304 case 'displayname':
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305 $this->raw['FN'][0][0] = $this->displayname = $value;
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306 break;
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307
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308 case 'surname':
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309 $this->raw['N'][0][0] = $this->surname = $value;
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310 break;
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311
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312 case 'firstname':
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313 $this->raw['N'][0][1] = $this->firstname = $value;
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314 break;
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315
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316 case 'middlename':
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317 $this->raw['N'][0][2] = $this->middlename = $value;
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318 break;
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319
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320 case 'prefix':
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321 $this->raw['N'][0][3] = $value;
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322 break;
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323
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324 case 'suffix':
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325 $this->raw['N'][0][4] = $value;
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326 break;
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327
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328 case 'nickname':
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329 $this->raw['NICKNAME'][0][0] = $this->nickname = $value;
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330 break;
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331
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332 case 'organization':
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333 $this->raw['ORG'][0][0] = $this->organization = $value;
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334 break;
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335
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336 case 'photo':
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337 if (strpos($value, 'http:') === 0) {
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338 // TODO: fetch file from URL and save it locally?
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339 $this->raw['PHOTO'][0] = array(0 => $value, 'url' => true);
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340 }
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341 else {
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342 $this->raw['PHOTO'][0] = array(0 => $value, 'base64' => (bool) preg_match('![^a-z0-9/=+-]!i', $value));
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343 }
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344 break;
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345
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346 case 'email':
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347 $this->raw['EMAIL'][] = array(0 => $value, 'type' => array_filter(array('INTERNET', $type_uc)));
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348 $this->email[] = $value;
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349 break;
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350
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351 case 'im':
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352 // save IM subtypes into extension fields
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353 $typemap = array_flip($this->immap);
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354 if ($field = $typemap[strtolower($type)]) {
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355 $this->raw[$field][] = array(0 => $value);
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356 }
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357 break;
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358
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359 case 'birthday':
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360 case 'anniversary':
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361 if (($val = rcube_utils::anytodatetime($value)) && ($fn = self::$fieldmap[$field])) {
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362 $this->raw[$fn][] = array(0 => $val->format('Y-m-d'), 'value' => array('date'));
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363 }
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364 break;
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365
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366 case 'address':
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367 if ($this->addresstypemap[$type_uc]) {
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368 $type = $this->addresstypemap[$type_uc];
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369 }
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370
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371 $value = $value[0] ? $value : array('', '', $value['street'], $value['locality'], $value['region'], $value['zipcode'], $value['country']);
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372
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373 // fall through if not empty
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374 if (!strlen(join('', $value))) {
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375 break;
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376 }
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377
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378 default:
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379 if ($field == 'phone' && $this->phonetypemap[$type_uc]) {
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380 $type = $this->phonetypemap[$type_uc];
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381 }
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382
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383 if (($tag = self::$fieldmap[$field]) && (is_array($value) || strlen($value))) {
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384 $this->raw[$tag][] = (array) $value;
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385 if ($type) {
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386 $index = count($this->raw[$tag]) - 1;
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387 $typemap = array_flip($this->typemap);
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388 $this->raw[$tag][$index]['type'] = explode(',', $typemap[$type_uc] ?: $type);
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389 }
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390 }
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391 else {
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392 unset($this->raw[$tag]);
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393 }
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394
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395 break;
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396 }
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397 }
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398
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399 /**
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400 * Setter for individual vcard properties
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401 *
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402 * @param string VCard tag name
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403 * @param array Value-set of this vcard property
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404 * @param boolean Set to true if the value-set should be appended instead of replacing any existing value-set
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405 */
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406 public function set_raw($tag, $value, $append = false)
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407 {
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408 $index = $append && isset($this->raw[$tag]) ? count($this->raw[$tag]) : 0;
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409 $this->raw[$tag][$index] = (array)$value;
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410 }
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411
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412 /**
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413 * Find index with the '$type' attribute
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414 *
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415 * @param string Field name
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416 *
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417 * @return int Field index having $type set
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418 */
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419 private function get_type_index($field)
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420 {
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421 $result = 0;
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422 if ($this->raw[$field]) {
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423 foreach ($this->raw[$field] as $i => $data) {
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424 if (is_array($data['type']) && in_array_nocase('pref', $data['type'])) {
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425 $result = $i;
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426 }
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427 }
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428 }
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429
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430 return $result;
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431 }
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432
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433 /**
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434 * Convert a whole vcard (array) to UTF-8.
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435 * If $force_charset is null, each member value that has a charset parameter will be converted
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436 */
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437 private static function charset_convert($card, $force_charset = null)
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438 {
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439 foreach ($card as $key => $node) {
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440 foreach ($node as $i => $subnode) {
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441 if (is_array($subnode) && (($charset = $force_charset) || ($subnode['charset'] && ($charset = $subnode['charset'][0])))) {
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442 foreach ($subnode as $j => $value) {
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443 if (is_numeric($j) && is_string($value)) {
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444 $card[$key][$i][$j] = rcube_charset::convert($value, $charset);
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445 }
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446 }
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447 unset($card[$key][$i]['charset']);
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448 }
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449 }
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450 }
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451
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452 return $card;
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453 }
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454
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455 /**
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456 * Extends fieldmap definition
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457 */
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458 public function extend_fieldmap($map)
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459 {
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460 if (is_array($map)) {
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461 self::$fieldmap = array_merge($map, self::$fieldmap);
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462 }
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463 }
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464
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465 /**
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466 * Factory method to import a vcard file
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467 *
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468 * @param string vCard file content
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469 *
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470 * @return array List of rcube_vcard objects
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471 */
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472 public static function import($data)
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473 {
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474 $out = array();
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475
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476 // check if charsets are specified (usually vcard version < 3.0 but this is not reliable)
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477 if (preg_match('/charset=/i', substr($data, 0, 2048))) {
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478 $charset = null;
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479 }
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480 // detect charset and convert to utf-8
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481 else if (($charset = self::detect_encoding($data)) && $charset != RCUBE_CHARSET) {
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482 $data = rcube_charset::convert($data, $charset);
|
|
483 $data = preg_replace(array('/^[\xFE\xFF]{2}/', '/^\xEF\xBB\xBF/', '/^\x00+/'), '', $data); // also remove BOM
|
|
484 $charset = RCUBE_CHARSET;
|
|
485 }
|
|
486
|
|
487 $vcard_block = '';
|
|
488 $in_vcard_block = false;
|
|
489
|
|
490 foreach (preg_split("/[\r\n]+/", $data) as $line) {
|
|
491 if ($in_vcard_block && !empty($line)) {
|
|
492 $vcard_block .= $line . "\n";
|
|
493 }
|
|
494
|
|
495 $line = trim($line);
|
|
496
|
|
497 if (preg_match('/^END:VCARD$/i', $line)) {
|
|
498 // parse vcard
|
|
499 $obj = new rcube_vcard($vcard_block, $charset, true, self::$fieldmap);
|
|
500 // FN and N is required by vCard format (RFC 2426)
|
|
501 // on import we can be less restrictive, let's addressbook decide
|
|
502 if (!empty($obj->displayname) || !empty($obj->surname) || !empty($obj->firstname) || !empty($obj->email)) {
|
|
503 $out[] = $obj;
|
|
504 }
|
|
505
|
|
506 $in_vcard_block = false;
|
|
507 }
|
|
508 else if (preg_match('/^BEGIN:VCARD$/i', $line)) {
|
|
509 $vcard_block = $line . "\n";
|
|
510 $in_vcard_block = true;
|
|
511 }
|
|
512 }
|
|
513
|
|
514 return $out;
|
|
515 }
|
|
516
|
|
517 /**
|
|
518 * Normalize vcard data for better parsing
|
|
519 *
|
|
520 * @param string vCard block
|
|
521 *
|
|
522 * @return string Cleaned vcard block
|
|
523 */
|
|
524 public static function cleanup($vcard)
|
|
525 {
|
|
526 // convert Apple X-ABRELATEDNAMES into X-* fields for better compatibility
|
|
527 $vcard = preg_replace_callback(
|
|
528 '/item(\d+)\.(X-ABRELATEDNAMES)([^:]*?):(.*?)item\1.X-ABLabel:(?:_\$!<)?([\w-() ]*)(?:>!\$_)?./s',
|
|
529 array('self', 'x_abrelatednames_callback'),
|
|
530 $vcard);
|
|
531
|
|
532 // Cleanup
|
|
533 $vcard = preg_replace(array(
|
|
534 // convert special types (like Skype) to normal type='skype' classes with this simple regex ;)
|
|
535 '/item(\d+)\.(TEL|EMAIL|URL)([^:]*?):(.*?)item\1.X-ABLabel:(?:_\$!<)?([\w-() ]*)(?:>!\$_)?./si',
|
|
536 '/^item\d*\.X-AB.*$/mi', // remove cruft like item1.X-AB*
|
|
537 '/^item\d*\./mi', // remove item1.ADR instead of ADR
|
|
538 '/\n+/', // remove empty lines
|
|
539 '/^(N:[^;\R]*)$/m', // if N doesn't have any semicolons, add some
|
|
540 ),
|
|
541 array(
|
|
542 '\2;type=\5\3:\4',
|
|
543 '',
|
|
544 '',
|
|
545 "\n",
|
|
546 '\1;;;;',
|
|
547 ), $vcard);
|
|
548
|
|
549 // convert X-WAB-GENDER to X-GENDER
|
|
550 if (preg_match('/X-WAB-GENDER:(\d)/', $vcard, $matches)) {
|
|
551 $value = $matches[1] == '2' ? 'male' : 'female';
|
|
552 $vcard = preg_replace('/X-WAB-GENDER:\d/', 'X-GENDER:' . $value, $vcard);
|
|
553 }
|
|
554
|
|
555 return $vcard;
|
|
556 }
|
|
557
|
|
558 private static function x_abrelatednames_callback($matches)
|
|
559 {
|
|
560 return 'X-' . strtoupper($matches[5]) . $matches[3] . ':'. $matches[4];
|
|
561 }
|
|
562
|
|
563 private static function rfc2425_fold_callback($matches)
|
|
564 {
|
|
565 // chunk_split string and avoid lines breaking multibyte characters
|
|
566 $c = 71;
|
|
567 $out .= substr($matches[1], 0, $c);
|
|
568 for ($n = $c; $c < strlen($matches[1]); $c++) {
|
|
569 // break if length > 75 or mutlibyte character starts after position 71
|
|
570 if ($n > 75 || ($n > 71 && ord($matches[1][$c]) >> 6 == 3)) {
|
|
571 $out .= "\r\n ";
|
|
572 $n = 0;
|
|
573 }
|
|
574 $out .= $matches[1][$c];
|
|
575 $n++;
|
|
576 }
|
|
577
|
|
578 return $out;
|
|
579 }
|
|
580
|
|
581 public static function rfc2425_fold($val)
|
|
582 {
|
|
583 return preg_replace_callback('/([^\n]{72,})/', array('self', 'rfc2425_fold_callback'), $val);
|
|
584 }
|
|
585
|
|
586 /**
|
|
587 * Decodes a vcard block (vcard 3.0 format, unfolded)
|
|
588 * into an array structure
|
|
589 *
|
|
590 * @param string vCard block to parse
|
|
591 *
|
|
592 * @return array Raw data structure
|
|
593 */
|
|
594 private static function vcard_decode($vcard)
|
|
595 {
|
|
596 // Perform RFC2425 line unfolding and split lines
|
|
597 $vcard = preg_replace(array("/\r/", "/\n\s+/"), '', $vcard);
|
|
598 $lines = explode("\n", $vcard);
|
|
599 $result = array();
|
|
600
|
|
601 for ($i=0; $i < count($lines); $i++) {
|
|
602 if (!($pos = strpos($lines[$i], ':'))) {
|
|
603 continue;
|
|
604 }
|
|
605
|
|
606 $prefix = substr($lines[$i], 0, $pos);
|
|
607 $data = substr($lines[$i], $pos+1);
|
|
608
|
|
609 if (preg_match('/^(BEGIN|END)$/i', $prefix)) {
|
|
610 continue;
|
|
611 }
|
|
612
|
|
613 // convert 2.1-style "EMAIL;internet;home:" to 3.0-style "EMAIL;TYPE=internet;TYPE=home:"
|
|
614 if ($result['VERSION'][0] == "2.1"
|
|
615 && preg_match('/^([^;]+);([^:]+)/', $prefix, $regs2)
|
|
616 && !preg_match('/^TYPE=/i', $regs2[2])
|
|
617 ) {
|
|
618 $prefix = $regs2[1];
|
|
619 foreach (explode(';', $regs2[2]) as $prop) {
|
|
620 $prefix .= ';' . (strpos($prop, '=') ? $prop : 'TYPE='.$prop);
|
|
621 }
|
|
622 }
|
|
623
|
|
624 if (preg_match_all('/([^\\;]+);?/', $prefix, $regs2)) {
|
|
625 $entry = array();
|
|
626 $field = strtoupper($regs2[1][0]);
|
|
627 $enc = null;
|
|
628
|
|
629 foreach ($regs2[1] as $attrid => $attr) {
|
|
630 $attr = preg_replace('/[\s\t\n\r\0\x0B]/', '', $attr);
|
|
631 if ((list($key, $value) = explode('=', $attr)) && $value) {
|
|
632 if ($key == 'ENCODING') {
|
|
633 $value = strtoupper($value);
|
|
634 // add next line(s) to value string if QP line end detected
|
|
635 if ($value == 'QUOTED-PRINTABLE') {
|
|
636 while (preg_match('/=$/', $lines[$i])) {
|
|
637 $data .= "\n" . $lines[++$i];
|
|
638 }
|
|
639 }
|
|
640 $enc = $value == 'BASE64' ? 'B' : $value;
|
|
641 }
|
|
642 else {
|
|
643 $lc_key = strtolower($key);
|
|
644 $entry[$lc_key] = array_merge((array)$entry[$lc_key], (array)self::vcard_unquote($value, ','));
|
|
645 }
|
|
646 }
|
|
647 else if ($attrid > 0) {
|
|
648 $entry[strtolower($key)] = true; // true means attr without =value
|
|
649 }
|
|
650 }
|
|
651
|
|
652 // decode value
|
|
653 if ($enc || !empty($entry['base64'])) {
|
|
654 // save encoding type (#1488432)
|
|
655 if ($enc == 'B') {
|
|
656 $entry['encoding'] = 'B';
|
|
657 // should we use vCard 3.0 instead?
|
|
658 // $entry['base64'] = true;
|
|
659 }
|
|
660
|
|
661 $data = self::decode_value($data, $enc ?: 'base64');
|
|
662 }
|
|
663 else if ($field == 'PHOTO') {
|
|
664 // vCard 4.0 data URI, "PHOTO:data:image/jpeg;base64,..."
|
|
665 if (preg_match('/^data:[a-z\/_-]+;base64,/i', $data, $m)) {
|
|
666 $entry['encoding'] = $enc = 'B';
|
|
667 $data = substr($data, strlen($m[0]));
|
|
668 $data = self::decode_value($data, 'base64');
|
|
669 }
|
|
670 }
|
|
671
|
|
672 if ($enc != 'B' && empty($entry['base64'])) {
|
|
673 $data = self::vcard_unquote($data);
|
|
674 }
|
|
675
|
|
676 $entry = array_merge($entry, (array) $data);
|
|
677 $result[$field][] = $entry;
|
|
678 }
|
|
679 }
|
|
680
|
|
681 unset($result['VERSION']);
|
|
682
|
|
683 return $result;
|
|
684 }
|
|
685
|
|
686 /**
|
|
687 * Decode a given string with the encoding rule from ENCODING attributes
|
|
688 *
|
|
689 * @param string String to decode
|
|
690 * @param string Encoding type (quoted-printable and base64 supported)
|
|
691 *
|
|
692 * @return string Decoded 8bit value
|
|
693 */
|
|
694 private static function decode_value($value, $encoding)
|
|
695 {
|
|
696 switch (strtolower($encoding)) {
|
|
697 case 'quoted-printable':
|
|
698 self::$values_decoded = true;
|
|
699 return quoted_printable_decode($value);
|
|
700
|
|
701 case 'base64':
|
|
702 case 'b':
|
|
703 self::$values_decoded = true;
|
|
704 return base64_decode($value);
|
|
705
|
|
706 default:
|
|
707 return $value;
|
|
708 }
|
|
709 }
|
|
710
|
|
711 /**
|
|
712 * Encodes an entry for storage in our database (vcard 3.0 format, unfolded)
|
|
713 *
|
|
714 * @param array Raw data structure to encode
|
|
715 *
|
|
716 * @return string vCard encoded string
|
|
717 */
|
|
718 static function vcard_encode($data)
|
|
719 {
|
|
720 foreach ((array)$data as $type => $entries) {
|
|
721 // valid N has 5 properties
|
|
722 while ($type == "N" && is_array($entries[0]) && count($entries[0]) < 5) {
|
|
723 $entries[0][] = "";
|
|
724 }
|
|
725
|
|
726 // make sure FN is not empty (required by RFC2426)
|
|
727 if ($type == "FN" && empty($entries)) {
|
|
728 $entries[0] = $data['EMAIL'][0][0];
|
|
729 }
|
|
730
|
|
731 foreach ((array)$entries as $entry) {
|
|
732 $attr = '';
|
|
733 if (is_array($entry)) {
|
|
734 $value = array();
|
|
735 foreach ($entry as $attrname => $attrvalues) {
|
|
736 if (is_int($attrname)) {
|
|
737 if (!empty($entry['base64']) || $entry['encoding'] == 'B') {
|
|
738 $attrvalues = base64_encode($attrvalues);
|
|
739 }
|
|
740 $value[] = $attrvalues;
|
|
741 }
|
|
742 else if (is_bool($attrvalues)) {
|
|
743 // true means just a tag, not tag=value, as in PHOTO;BASE64:...
|
|
744 if ($attrvalues) {
|
|
745 // vCard v3 uses ENCODING=b (#1489183)
|
|
746 if ($attrname == 'base64') {
|
|
747 $attr .= ";ENCODING=b";
|
|
748 }
|
|
749 else {
|
|
750 $attr .= strtoupper(";$attrname");
|
|
751 }
|
|
752 }
|
|
753 }
|
|
754 else {
|
|
755 foreach ((array)$attrvalues as $attrvalue) {
|
|
756 $attr .= strtoupper(";$attrname=") . self::vcard_quote($attrvalue, ',');
|
|
757 }
|
|
758 }
|
|
759 }
|
|
760 }
|
|
761 else {
|
|
762 $value = $entry;
|
|
763 }
|
|
764
|
|
765 // skip empty entries
|
|
766 if (self::is_empty($value)) {
|
|
767 continue;
|
|
768 }
|
|
769
|
|
770 $vcard .= self::vcard_quote($type) . $attr . ':' . self::vcard_quote($value) . self::$eol;
|
|
771 }
|
|
772 }
|
|
773
|
|
774 return 'BEGIN:VCARD' . self::$eol . 'VERSION:3.0' . self::$eol . $vcard . 'END:VCARD';
|
|
775 }
|
|
776
|
|
777 /**
|
|
778 * Join indexed data array to a vcard quoted string
|
|
779 *
|
|
780 * @param array Field data
|
|
781 * @param string Separator
|
|
782 *
|
|
783 * @return string Joined and quoted string
|
|
784 */
|
|
785 public static function vcard_quote($s, $sep = ';')
|
|
786 {
|
|
787 if (is_array($s)) {
|
|
788 foreach ($s as $part) {
|
|
789 $r[] = self::vcard_quote($part, $sep);
|
|
790 }
|
|
791 return(implode($sep, (array)$r));
|
|
792 }
|
|
793
|
|
794 return strtr($s, array('\\' => '\\\\', "\r" => '', "\n" => '\n', $sep => '\\'.$sep));
|
|
795 }
|
|
796
|
|
797 /**
|
|
798 * Split quoted string
|
|
799 *
|
|
800 * @param string vCard string to split
|
|
801 * @param string Separator char/string
|
|
802 *
|
|
803 * @return array List with splited values
|
|
804 */
|
|
805 private static function vcard_unquote($s, $sep = ';')
|
|
806 {
|
|
807 // break string into parts separated by $sep
|
|
808 if (!empty($sep)) {
|
|
809 // Handle properly backslash escaping (#1488896)
|
|
810 $rep1 = array("\\\\" => "\010", "\\$sep" => "\007");
|
|
811 $rep2 = array("\007" => "\\$sep", "\010" => "\\\\");
|
|
812
|
|
813 if (count($parts = explode($sep, strtr($s, $rep1))) > 1) {
|
|
814 foreach ($parts as $s) {
|
|
815 $result[] = self::vcard_unquote(strtr($s, $rep2));
|
|
816 }
|
|
817 return $result;
|
|
818 }
|
|
819
|
|
820 $s = trim(strtr($s, $rep2));
|
|
821 }
|
|
822
|
|
823 // some implementations (GMail) use non-standard backslash before colon (#1489085)
|
|
824 // we will handle properly any backslashed character - removing dummy backslahes
|
|
825 // return strtr($s, array("\r" => '', '\\\\' => '\\', '\n' => "\n", '\N' => "\n", '\,' => ',', '\;' => ';'));
|
|
826
|
|
827 $s = str_replace("\r", '', $s);
|
|
828 $pos = 0;
|
|
829
|
|
830 while (($pos = strpos($s, '\\', $pos)) !== false) {
|
|
831 $next = substr($s, $pos + 1, 1);
|
|
832 if ($next == 'n' || $next == 'N') {
|
|
833 $s = substr_replace($s, "\n", $pos, 2);
|
|
834 }
|
|
835 else {
|
|
836 $s = substr_replace($s, '', $pos, 1);
|
|
837 }
|
|
838
|
|
839 $pos += 1;
|
|
840 }
|
|
841
|
|
842 return $s;
|
|
843 }
|
|
844
|
|
845 /**
|
|
846 * Check if vCard entry is empty: empty string or an array with
|
|
847 * all entries empty.
|
|
848 *
|
|
849 * @param mixed $value Attribute value (string or array)
|
|
850 *
|
|
851 * @return bool True if the value is empty, False otherwise
|
|
852 */
|
|
853 private static function is_empty($value)
|
|
854 {
|
|
855 foreach ((array)$value as $v) {
|
|
856 if (((string)$v) !== '') {
|
|
857 return false;
|
|
858 }
|
|
859 }
|
|
860
|
|
861 return true;
|
|
862 }
|
|
863
|
|
864 /**
|
|
865 * Extract array values by a filter
|
|
866 *
|
|
867 * @param array Array to filter
|
|
868 * @param keys Array or comma separated list of values to keep
|
|
869 * @param boolean Invert key selection: remove the listed values
|
|
870 *
|
|
871 * @return array The filtered array
|
|
872 */
|
|
873 private static function array_filter($arr, $values, $inverse = false)
|
|
874 {
|
|
875 if (!is_array($values)) {
|
|
876 $values = explode(',', $values);
|
|
877 }
|
|
878
|
|
879 $result = array();
|
|
880 $keep = array_flip((array)$values);
|
|
881
|
|
882 foreach ($arr as $key => $val) {
|
|
883 if ($inverse != isset($keep[strtolower($val)])) {
|
|
884 $result[$key] = $val;
|
|
885 }
|
|
886 }
|
|
887
|
|
888 return $result;
|
|
889 }
|
|
890
|
|
891 /**
|
|
892 * Returns UNICODE type based on BOM (Byte Order Mark)
|
|
893 *
|
|
894 * @param string Input string to test
|
|
895 *
|
|
896 * @return string Detected encoding
|
|
897 */
|
|
898 private static function detect_encoding($string)
|
|
899 {
|
|
900 $fallback = rcube::get_instance()->config->get('default_charset', 'ISO-8859-1'); // fallback to Latin-1
|
|
901
|
|
902 return rcube_charset::detect($string, $fallback);
|
|
903 }
|
|
904 }
|