githubFork/roundcubemail.git

- Fix s/pattern/prefix/ in clear_cache()

alecpl

2011-05-21 bc8c2c57880523472b30f475d566a8133e2d2e20

commit \| author \| age
ed132e	1	<?php
T	2
	3	/*
	4	+-----------------------------------------------------------------------+
	5	\| program/include/rcube_vcard.php \|
	6	\| \|
e019f2	7	\| This file is part of the Roundcube Webmail client \|
0501b6	8	\| Copyright (C) 2008-2011, The Roundcube Dev Team \|
ed132e	9	\| Licensed under the GNU GPL \|
T	10	\| \|
	11	\| PURPOSE: \|
	12	\| Logical representation of a vcard address record \|
	13	+-----------------------------------------------------------------------+
	14	\| Author: Thomas Bruederli <roundcube@gmail.com> \|
	15	+-----------------------------------------------------------------------+
	16
1d786c	17	$Id$
ed132e	18
T	19	*/
	20
	21
	22	/**
	23	* Logical representation of a vcard-based address record
	24	* Provides functions to parse and export vCard data format
	25	*
	26	* @package Addressbook
	27	* @author Thomas Bruederli <roundcube@gmail.com>
	28	*/
	29	class rcube_vcard
	30	{
6bdb61	31	private static $values_decoded = false;
0dbac3	32	private $raw = array(
T	33	'FN' => array(),
	34	'N' => array(array('','','','','')),
	35	);
0501b6	36	private $fieldmap = array(
T	37	'phone' => 'TEL',
	38	'birthday' => 'BDAY',
	39	'website' => 'URL',
	40	'notes' => 'NOTE',
	41	'email' => 'EMAIL',
	42	'address' => 'ADR',
0fbade	43	'jobtitle' => 'TITLE',
0501b6	44	'gender' => 'X-GENDER',
T	45	'maidenname' => 'X-MAIDENNAME',
	46	'anniversary' => 'X-ANNIVERSARY',
	47	'assistant' => 'X-ASSISTANT',
	48	'manager' => 'X-MANAGER',
	49	'spouse' => 'X-SPOUSE',
	50	);
	51	private $typemap = array('iPhone' => 'mobile', 'CELL' => 'mobile');
000fe3	52	private $phonetypemap = array('HOME1' => 'HOME', 'BUSINESS1' => 'WORK', 'BUSINESS2' => 'WORK2', 'BUSINESSFAX' => 'WORKFAX');
0501b6	53	private $addresstypemap = array('BUSINESS' => 'WORK');
T	54	private $immap = array('X-JABBER' => 'jabber', 'X-ICQ' => 'icq', 'X-MSN' => 'msn', 'X-AIM' => 'aim', 'X-YAHOO' => 'yahoo', 'X-SKYPE' => 'skype', 'X-SKYPE-USERNAME' => 'skype');
ed132e	55
T	56	public $business = false;
	57	public $displayname;
	58	public $surname;
	59	public $firstname;
	60	public $middlename;
	61	public $nickname;
	62	public $organization;
	63	public $notes;
	64	public $email = array();
	65
	66
	67	/**
	68	* Constructor
	69	*/
6bdb61	70	public function __construct($vcard = null, $charset = RCMAIL_CHARSET, $detect = false)
ed132e	71	{
T	72	if (!empty($vcard))
6bdb61	73	$this->load($vcard, $charset, $detect);
ed132e	74	}
T	75
	76
	77	/**
	78	* Load record from (internal, unfolded) vcard 3.0 format
	79	*
	80	* @param string vCard string to parse
6bdb61	81	* @param string Charset of string values
T	82	* @param boolean True if loading a 'foreign' vcard and extra heuristics for charset detection is required
ed132e	83	*/
6bdb61	84	public function load($vcard, $charset = RCMAIL_CHARSET, $detect = false)
ed132e	85	{
6bdb61	86	self::$values_decoded = false;
ed132e	87	$this->raw = self::vcard_decode($vcard);
6bdb61	88
5570ad	89	// resolve charset parameters
6bdb61	90	if ($charset == null) {
T	91	$this->raw = self::charset_convert($this->raw);
	92	}
	93	// vcard has encoded values and charset should be detected
	94	else if ($detect && self::$values_decoded &&
	95	($detected_charset = self::detect_encoding(self::vcard_encode($this->raw))) && $detected_charset != RCMAIL_CHARSET) {
	96	$this->raw = self::charset_convert($this->raw, $detected_charset);
	97	}
6b1999	98
T	99	// consider FN empty if the same as the primary e-mail address
	100	if ($this->raw['FN'][0][0] == $this->raw['EMAIL'][0][0])
	101	$this->raw['FN'][0][0] = '';
ed132e	102
T	103	// find well-known address fields
5570ad	104	$this->displayname = $this->raw['FN'][0][0];
ed132e	105	$this->surname = $this->raw['N'][0][0];
T	106	$this->firstname = $this->raw['N'][0][1];
	107	$this->middlename = $this->raw['N'][0][2];
5570ad	108	$this->nickname = $this->raw['NICKNAME'][0][0];
T	109	$this->organization = $this->raw['ORG'][0][0];
	110	$this->business = ($this->raw['X-ABSHOWAS'][0][0] == 'COMPANY') \|\| (join('', (array)$this->raw['N'][0]) == '' && !empty($this->organization));
99fc46	111
ed132e	112	foreach ((array)$this->raw['EMAIL'] as $i => $raw_email)
bb8781	113	$this->email[$i] = is_array($raw_email) ? $raw_email[0] : $raw_email;
99fc46	114
ed132e	115	// make the pref e-mail address the first entry in $this->email
T	116	$pref_index = $this->get_type_index('EMAIL', 'pref');
	117	if ($pref_index > 0) {
	118	$tmp = $this->email[0];
	119	$this->email[0] = $this->email[$pref_index];
	120	$this->email[$pref_index] = $tmp;
	121	}
	122	}
	123
	124
	125	/**
0501b6	126	* Return vCard data as associative array to be unsed in Roundcube address books
T	127	*
	128	* @return array Hash array with key-value pairs
	129	*/
	130	public function get_assoc()
	131	{
	132	$out = array('name' => $this->displayname);
	133	$typemap = $this->typemap;
99fc46	134
0501b6	135	// copy name fields to output array
3e2637	136	foreach (array('firstname','surname','middlename','nickname','organization') as $col) {
T	137	if (strlen($this->$col))
	138	$out[$col] = $this->$col;
	139	}
99fc46	140
3e2637	141	if ($this->raw['N'][0][3])
T	142	$out['prefix'] = $this->raw['N'][0][3];
	143	if ($this->raw['N'][0][4])
	144	$out['suffix'] = $this->raw['N'][0][4];
99fc46	145
0501b6	146	// convert from raw vcard data into associative data for Roundcube
T	147	foreach (array_flip($this->fieldmap) as $tag => $col) {
	148	foreach ((array)$this->raw[$tag] as $i => $raw) {
	149	if (is_array($raw)) {
	150	$k = -1;
	151	$key = $col;
99fc46	152
0501b6	153	$subtype = $typemap[$raw['type'][++$k]] ? $typemap[$raw['type'][$k]] : strtolower($raw['type'][$k]);
T	154	while ($k < count($raw['type']) && ($subtype == 'internet' \|\| $subtype == 'pref'))
	155	$subtype = $typemap[$raw['type'][++$k]] ? $typemap[$raw['type'][$k]] : strtolower($raw['type'][$k]);
99fc46	156
e9aa8c	157	// read vcard 2.1 subtype
T	158	if (!$subtype) {
	159	foreach ($raw as $k => $v) {
	160	if (!is_numeric($k) && $v === true && !in_array(strtolower($k), array('pref','internet','voice','base64'))) {
	161	$subtype = $typemap[$k] ? $typemap[$k] : strtolower($k);
	162	break;
	163	}
	164	}
	165	}
0fbade	166
T	167	// force subtype if none set
	168	if (preg_match('/^(email\|phone\|address\|website)/', $key) && !$subtype)
	169	$subtype = 'other';
99fc46	170
0501b6	171	if ($subtype)
T	172	$key .= ':' . $subtype;
	173
	174	// split ADR values into assoc array
	175	if ($tag == 'ADR') {
	176	list(,, $value['street'], $value['locality'], $value['region'], $value['zipcode'], $value['country']) = $raw;
	177	$out[$key][] = $value;
	178	}
	179	else
	180	$out[$key][] = $raw[0];
	181	}
	182	else {
	183	$out[$col][] = $raw;
	184	}
	185	}
	186	}
99fc46	187
0501b6	188	// handle special IM fields as used by Apple
T	189	foreach ($this->immap as $tag => $type) {
	190	foreach ((array)$this->raw[$tag] as $i => $raw) {
	191	$out['im:'.$type][] = $raw[0];
	192	}
	193	}
99fc46	194
0501b6	195	// copy photo data
T	196	if ($this->raw['PHOTO'])
	197	$out['photo'] = $this->raw['PHOTO'][0][0];
99fc46	198
0501b6	199	return $out;
T	200	}
	201
	202
	203	/**
ed132e	204	* Convert the data structure into a vcard 3.0 string
T	205	*/
569f83	206	public function export($folded = true)
ed132e	207	{
569f83	208	$vcard = self::vcard_encode($this->raw);
T	209	return $folded ? self::rfc2425_fold($vcard) : $vcard;
0501b6	210	}
99fc46	211
A	212
0501b6	213	/**
T	214	* Clear the given fields in the loaded vcard data
	215	*
	216	* @param array List of field names to be reset
	217	*/
	218	public function reset($fields = null)
	219	{
	220	if (!$fields)
	221	$fields = array_merge(array_values($this->fieldmap), array_keys($this->immap), array('FN','N','ORG','NICKNAME','EMAIL','ADR','BDAY'));
99fc46	222
0501b6	223	foreach ($fields as $f)
T	224	unset($this->raw[$f]);
	225
	226	if (!$this->raw['N'])
	227	$this->raw['N'] = array(array('','','','',''));
	228	if (!$this->raw['FN'])
	229	$this->raw['FN'] = array();
99fc46	230
0501b6	231	$this->email = array();
ed132e	232	}
T	233
	234
	235	/**
	236	* Setter for address record fields
	237	*
	238	* @param string Field name
	239	* @param string Field value
0501b6	240	* @param string Type/section name
ed132e	241	*/
0501b6	242	public function set($field, $value, $type = 'HOME')
ed132e	243	{
0501b6	244	$field = strtolower($field);
T	245	$type = strtoupper($type);
	246	$typemap = array_flip($this->typemap);
99fc46	247
ed132e	248	switch ($field) {
T	249	case 'name':
	250	case 'displayname':
5570ad	251	$this->raw['FN'][0][0] = $value;
ed132e	252	break;
99fc46	253
0501b6	254	case 'surname':
T	255	$this->raw['N'][0][0] = $value;
	256	break;
99fc46	257
ed132e	258	case 'firstname':
T	259	$this->raw['N'][0][1] = $value;
	260	break;
99fc46	261
0501b6	262	case 'middlename':
T	263	$this->raw['N'][0][2] = $value;
ed132e	264	break;
99fc46	265
0501b6	266	case 'prefix':
T	267	$this->raw['N'][0][3] = $value;
	268	break;
99fc46	269
0501b6	270	case 'suffix':
T	271	$this->raw['N'][0][4] = $value;
	272	break;
99fc46	273
ed132e	274	case 'nickname':
5570ad	275	$this->raw['NICKNAME'][0][0] = $value;
ed132e	276	break;
99fc46	277
ed132e	278	case 'organization':
5570ad	279	$this->raw['ORG'][0][0] = $value;
ed132e	280	break;
99fc46	281
0501b6	282	case 'photo':
0fbade	283	if (strpos($value, 'http:') === 0) {
T	284	// TODO: fetch file from URL and save it locally?
	285	$this->raw['PHOTO'][0] = array(0 => $value, 'URL' => true);
	286	}
	287	else {
	288	$encoded = !preg_match('![^a-z0-9/=+-]!i', $value);
	289	$this->raw['PHOTO'][0] = array(0 => $encoded ? $value : base64_encode($value), 'BASE64' => true);
	290	}
0501b6	291	break;
99fc46	292
ed132e	293	case 'email':
0501b6	294	$this->raw['EMAIL'][] = array(0 => $value, 'type' => array_filter(array('INTERNET', $type)));
T	295	$this->email[] = $value;
	296	break;
99fc46	297
0501b6	298	case 'im':
T	299	// save IM subtypes into extension fields
	300	$typemap = array_flip($this->immap);
	301	if ($field = $typemap[strtolower($type)])
	302	$this->raw[$field][] = array(0 => $value);
	303	break;
	304
	305	case 'birthday':
e9aa8c	306	if ($val = rcube_strtotime($value))
0501b6	307	$this->raw['BDAY'][] = array(0 => date('Y-m-d', $val), 'value' => array('date'));
T	308	break;
	309
	310	case 'address':
	311	if ($this->addresstypemap[$type])
	312	$type = $this->addresstypemap[$type];
	313
	314	$value = $value[0] ? $value : array('', '', $value['street'], $value['locality'], $value['region'], $value['zipcode'], $value['country']);
	315
	316	// fall through if not empty
	317	if (!strlen(join('', $value)))
	318	break;
	319
	320	default:
	321	if ($field == 'phone' && $this->phonetypemap[$type])
	322	$type = $this->phonetypemap[$type];
	323
	324	if (($tag = $this->fieldmap[$field]) && (is_array($value) \|\| strlen($value))) {
	325	$index = count($this->raw[$tag]);
	326	$this->raw[$tag][$index] = (array)$value;
	327	if ($type)
	328	$this->raw[$tag][$index]['type'] = array(($typemap[$type] ? $typemap[$type] : $type));
ed132e	329	}
T	330	break;
	331	}
	332	}
	333
4e3ec4	334	/**
T	335	* Setter for individual vcard properties
	336	*
	337	* @param string VCard tag name
	338	* @param array Value-set of this vcard property
	339	* @param boolean Set to true if the value-set should be appended instead of replacing any existing value-set
	340	*/
	341	public function set_raw($tag, $value, $append = false)
	342	{
	343	$index = $append ? count($this->raw[$tag]) : 0;
	344	$this->raw[$tag][$index] = (array)$value;
	345	}
	346
ed132e	347
T	348	/**
	349	* Find index with the '$type' attribute
	350	*
	351	* @param string Field name
	352	* @return int Field index having $type set
	353	*/
	354	private function get_type_index($field, $type = 'pref')
	355	{
	356	$result = 0;
	357	if ($this->raw[$field]) {
	358	foreach ($this->raw[$field] as $i => $data) {
	359	if (is_array($data['type']) && in_array_nocase('pref', $data['type']))
	360	$result = $i;
	361	}
	362	}
99fc46	363
ed132e	364	return $result;
T	365	}
99fc46	366
A	367
5570ad	368	/**
T	369	* Convert a whole vcard (array) to UTF-8.
6bdb61	370	* If $force_charset is null, each member value that has a charset parameter will be converted
5570ad	371	*/
6bdb61	372	private static function charset_convert($card, $force_charset = null)
5570ad	373	{
T	374	foreach ($card as $key => $node) {
	375	foreach ($node as $i => $subnode) {
6bdb61	376	if (is_array($subnode) && (($charset = $force_charset) \|\| ($subnode['charset'] && ($charset = $subnode['charset'][0])))) {
5570ad	377	foreach ($subnode as $j => $value) {
T	378	if (is_numeric($j) && is_string($value))
	379	$card[$key][$i][$j] = rcube_charset_convert($value, $charset);
	380	}
	381	unset($card[$key][$i]['charset']);
	382	}
	383	}
	384	}
	385
	386	return $card;
	387	}
ed132e	388
T	389
	390	/**
	391	* Factory method to import a vcard file
	392	*
	393	* @param string vCard file content
	394	* @return array List of rcube_vcard objects
	395	*/
	396	public static function import($data)
	397	{
	398	$out = array();
	399
5570ad	400	// check if charsets are specified (usually vcard version < 3.0 but this is not reliable)
T	401	if (preg_match('/charset=/i', substr($data, 0, 2048)))
	402	$charset = null;
ed132e	403	// detect charset and convert to utf-8
5570ad	404	else if (($charset = self::detect_encoding($data)) && $charset != RCMAIL_CHARSET) {
T	405	$data = rcube_charset_convert($data, $charset);
6fa87f	406	$data = preg_replace(array('/^[\xFE\xFF]{2}/', '/^\xEF\xBB\xBF/', '/^\x00+/'), '', $data); // also remove BOM
5570ad	407	$charset = RCMAIL_CHARSET;
ed132e	408	}
T	409
	410	$vcard_block = '';
	411	$in_vcard_block = false;
	412
	413	foreach (preg_split("/[\r\n]+/", $data) as $i => $line) {
	414	if ($in_vcard_block && !empty($line))
	415	$vcard_block .= $line . "\n";
	416
928bca	417	$line = trim($line);
A	418
	419	if (preg_match('/^END:VCARD$/i', $line)) {
ed132e	420	// parse vcard
6bdb61	421	$obj = new rcube_vcard(self::cleanup($vcard_block), $charset, true);
6b1999	422	if (!empty($obj->displayname) \|\| !empty($obj->email))
ed132e	423	$out[] = $obj;
T	424
	425	$in_vcard_block = false;
	426	}
928bca	427	else if (preg_match('/^BEGIN:VCARD$/i', $line)) {
ed132e	428	$vcard_block = $line . "\n";
T	429	$in_vcard_block = true;
	430	}
	431	}
	432
	433	return $out;
	434	}
	435
	436
	437	/**
	438	* Normalize vcard data for better parsing
	439	*
	440	* @param string vCard block
	441	* @return string Cleaned vcard block
	442	*/
	443	private static function cleanup($vcard)
	444	{
	445	// Convert special types (like Skype) to normal type='skype' classes with this simple regex ;)
	446	$vcard = preg_replace(
0fbade	447	'/item(\d+)\.(TEL\|EMAIL\|URL)([^:]?):(.?)item\1.X-ABLabel:(?:_\$!<)?([\w-() ]*)(?:>!\$_)?./s',
ed132e	448	'\2;type=\5\3:\4',
0fbade	449	$vcard);
T	450
	451	// convert Apple X-ABRELATEDNAMES into X-* fields for better compatibility
	452	$vcard = preg_replace_callback(
	453	'/item(\d+)\.(X-ABRELATEDNAMES)([^:]?):(.?)item\1.X-ABLabel:(?:_\$!<)?([\w-() ]*)(?:>!\$_)?./s',
	454	array('self', 'x_abrelatednames_callback'),
ed132e	455	$vcard);
T	456
	457	// Remove cruft like item1.X-AB*, item1.ADR instead of ADR, and empty lines
	458	$vcard = preg_replace(array('/^item\d\.X-AB.$/m', '/^item\d*\./m', "/\n+/"), array('', '', "\n"), $vcard);
99fc46	459
e9aa8c	460	// convert X-WAB-GENDER to X-GENDER
T	461	if (preg_match('/X-WAB-GENDER:(\d)/', $vcard, $matches)) {
	462	$value = $matches[1] == '2' ? 'male' : 'female';
	463	$vcard = preg_replace('/X-WAB-GENDER:\d/', 'X-GENDER:' . $value, $vcard);
	464	}
ed132e	465
b58f11	466	// if N doesn't have any semicolons, add some
T	467	$vcard = preg_replace('/^(N:[^;\R]*)$/m', '\1;;;;', $vcard);
ed132e	468
T	469	return $vcard;
0fbade	470	}
99fc46	471
0fbade	472	private static function x_abrelatednames_callback($matches)
T	473	{
	474	return 'X-' . strtoupper($matches[5]) . $matches[3] . ':'. $matches[4];
ed132e	475	}
T	476
478c7c	477	private static function rfc2425_fold_callback($matches)
A	478	{
bf80b5	479	// chunk_split string and avoid lines breaking multibyte characters
569f83	480	$c = 71;
T	481	$out .= substr($matches[1], 0, $c);
bf80b5	482	for ($n = $c; $c < strlen($matches[1]); $c++) {
569f83	483	// break if length > 75 or mutlibyte character starts after position 71
T	484	if ($n > 75 \|\| ($n > 71 && ord($matches[1][$c]) >> 6 == 3)) {
58510f	485	$out .= "\r\n ";
bf80b5	486	$n = 0;
T	487	}
	488	$out .= $matches[1][$c];
	489	$n++;
	490	}
	491
	492	return $out;
478c7c	493	}
ed132e	494
569f83	495	public static function rfc2425_fold($val)
ed132e	496	{
569f83	497	return preg_replace_callback('/([^\n]{72,})/', array('self', 'rfc2425_fold_callback'), $val);
ed132e	498	}
T	499
	500
	501	/**
	502	* Decodes a vcard block (vcard 3.0 format, unfolded)
	503	* into an array structure
	504	*
	505	* @param string vCard block to parse
	506	* @return array Raw data structure
	507	*/
	508	private static function vcard_decode($vcard)
	509	{
99fc46	510	// Perform RFC2425 line unfolding and split lines
ed132e	511	$vcard = preg_replace(array("/\r/", "/\n\s+/"), '', $vcard);
99fc46	512	$lines = explode("\n", $vcard);
A	513	$data = array();
	514
b58f11	515	for ($i=0; $i < count($lines); $i++) {
99fc46	516	if (!preg_match('/^([^:]+):(.+)$/', $lines[$i], $line))
A	517	continue;
	518
	519	if (preg_match('/^(BEGIN\|END)$/i', $line[1]))
	520	continue;
ed132e	521
b58f11	522	// convert 2.1-style "EMAIL;internet;home:" to 3.0-style "EMAIL;TYPE=internet;TYPE=home:"
T	523	if (($data['VERSION'][0] == "2.1") && preg_match('/^([^;]+);([^:]+)/', $line[1], $regs2) && !preg_match('/^TYPE=/i', $regs2[2])) {
	524	$line[1] = $regs2[1];
	525	foreach (explode(';', $regs2[2]) as $prop)
	526	$line[1] .= ';' . (strpos($prop, '=') ? $prop : 'TYPE='.$prop);
ed132e	527	}
T	528
99fc46	529	if (preg_match_all('/([^\\;]+);?/', $line[1], $regs2)) {
93af15	530	$entry = array();
cc97ea	531	$field = strtoupper($regs2[1][0]);
b58f11	532
T	533	foreach($regs2[1] as $attrid => $attr) {
	534	if ((list($key, $value) = explode('=', $attr)) && $value) {
5570ad	535	$value = trim($value);
b58f11	536	if ($key == 'ENCODING') {
93af15	537	// add next line(s) to value string if QP line end detected
23a2ee	538	while ($value == 'QUOTED-PRINTABLE' && preg_match('/=$/', $lines[$i]))
b58f11	539	$line[2] .= "\n" . $lines[++$i];
99fc46	540
b58f11	541	$line[2] = self::decode_value($line[2], $value);
T	542	}
	543	else
	544	$entry[strtolower($key)] = array_merge((array)$entry[strtolower($key)], (array)self::vcard_unquote($value, ','));
	545	}
	546	else if ($attrid > 0) {
93af15	547	$entry[$key] = true; // true means attr without =value
b58f11	548	}
T	549	}
	550
93af15	551	$entry = array_merge($entry, (array)self::vcard_unquote($line[2]));
5570ad	552	$data[$field][] = $entry;
b58f11	553	}
ed132e	554	}
b58f11	555
T	556	unset($data['VERSION']);
ed132e	557	return $data;
bb8781	558	}
T	559
	560
	561	/**
	562	* Decode a given string with the encoding rule from ENCODING attributes
	563	*
	564	* @param string String to decode
	565	* @param string Encoding type (quoted-printable and base64 supported)
	566	* @return string Decoded 8bit value
	567	*/
	568	private static function decode_value($value, $encoding)
	569	{
	570	switch (strtolower($encoding)) {
	571	case 'quoted-printable':
6bdb61	572	self::$values_decoded = true;
bb8781	573	return quoted_printable_decode($value);
T	574
	575	case 'base64':
6bdb61	576	self::$values_decoded = true;
bb8781	577	return base64_decode($value);
T	578
	579	default:
	580	return $value;
ed132e	581	}
T	582	}
	583
	584
	585	/**
	586	* Encodes an entry for storage in our database (vcard 3.0 format, unfolded)
	587	*
	588	* @param array Raw data structure to encode
	589	* @return string vCard encoded string
	590	*/
	591	static function vcard_encode($data)
	592	{
	593	foreach((array)$data as $type => $entries) {
	594	/* valid N has 5 properties */
b58f11	595	while ($type == "N" && is_array($entries[0]) && count($entries[0]) < 5)
ed132e	596	$entries[0][] = "";
T	597
e84818	598	// make sure FN is not empty (required by RFC2426)
T	599	if ($type == "FN" && empty($entries))
	600	$entries[0] = $data['EMAIL'][0][0];
	601
ed132e	602	foreach((array)$entries as $entry) {
T	603	$attr = '';
	604	if (is_array($entry)) {
	605	$value = array();
	606	foreach($entry as $attrname => $attrvalues) {
	607	if (is_int($attrname))
	608	$value[] = $attrvalues;
	609	elseif ($attrvalues === true)
93af15	610	$attr .= ";$attrname"; // true means just tag, not tag=value, as in PHOTO;BASE64:...
ed132e	611	else {
T	612	foreach((array)$attrvalues as $attrvalue)
	613	$attr .= ";$attrname=" . self::vcard_quote($attrvalue, ',');
	614	}
	615	}
	616	}
	617	else {
	618	$value = $entry;
	619	}
	620
	621	$vcard .= self::vcard_quote($type) . $attr . ':' . self::vcard_quote($value) . "\n";
	622	}
	623	}
	624
0dbac3	625	return "BEGIN:VCARD\nVERSION:3.0\n{$vcard}END:VCARD";
ed132e	626	}
T	627
	628
	629	/**
	630	* Join indexed data array to a vcard quoted string
	631	*
	632	* @param array Field data
	633	* @param string Separator
	634	* @return string Joined and quoted string
	635	*/
	636	private static function vcard_quote($s, $sep = ';')
	637	{
	638	if (is_array($s)) {
	639	foreach($s as $part) {
	640	$r[] = self::vcard_quote($part, $sep);
	641	}
	642	return(implode($sep, (array)$r));
	643	}
	644	else {
99fc46	645	return strtr($s, array('\\' => '\\\\', "\r" => '', "\n" => '\n', ',' => '\,', ';' => '\;'));
A	646	}
	647	}
	648
	649
	650	/**
	651	* Split quoted string
	652	*
	653	* @param string vCard string to split
	654	* @param string Separator char/string
	655	* @return array List with splitted values
	656	*/
	657	private static function vcard_unquote($s, $sep = ';')
	658	{
	659	// break string into parts separated by $sep, but leave escaped $sep alone
	660	if (count($parts = explode($sep, strtr($s, array("\\$sep" => "\007")))) > 1) {
	661	foreach($parts as $s) {
	662	$result[] = self::vcard_unquote(strtr($s, array("\007" => "\\$sep")), $sep);
	663	}
	664	return $result;
	665	}
	666	else {
4e3ec4	667	return strtr($s, array("\r" => '', '\\\\' => '\\', '\n' => "\n", '\N' => "\n", '\,' => ',', '\;' => ';', '\:' => ':'));
ed132e	668	}
T	669	}
	670
	671
	672	/**
	673	* Returns UNICODE type based on BOM (Byte Order Mark)
	674	*
	675	* @param string Input string to test
	676	* @return string Detected encoding
	677	*/
	678	private static function detect_encoding($string)
	679	{
	680	if (substr($string, 0, 4) == "\0\0\xFE\xFF") return 'UTF-32BE'; // Big Endian
	681	if (substr($string, 0, 4) == "\xFF\xFE\0\0") return 'UTF-32LE'; // Little Endian
	682	if (substr($string, 0, 2) == "\xFE\xFF") return 'UTF-16BE'; // Big Endian
	683	if (substr($string, 0, 2) == "\xFF\xFE") return 'UTF-16LE'; // Little Endian
	684	if (substr($string, 0, 3) == "\xEF\xBB\xBF") return 'UTF-8';
	685
0fbade	686	// heuristics
T	687	if ($string[0] == "\0" && $string[1] == "\0" && $string[2] == "\0" && $string[3] != "\0") return 'UTF-32BE';
	688	if ($string[0] != "\0" && $string[1] == "\0" && $string[2] == "\0" && $string[3] == "\0") return 'UTF-32LE';
	689	if ($string[0] == "\0" && $string[1] != "\0" && $string[2] == "\0" && $string[3] != "\0") return 'UTF-16BE';
	690	if ($string[0] != "\0" && $string[1] == "\0" && $string[2] != "\0" && $string[3] == "\0") return 'UTF-16LE';
	691
6fa87f	692	// use mb_detect_encoding()
T	693	$encodings = array('UTF-8', 'ISO-8859-1', 'ISO-8859-2', 'ISO-8859-3',
	694	'ISO-8859-4', 'ISO-8859-5', 'ISO-8859-6', 'ISO-8859-7', 'ISO-8859-8', 'ISO-8859-9',
	695	'ISO-8859-10', 'ISO-8859-13', 'ISO-8859-14', 'ISO-8859-15', 'ISO-8859-16',
	696	'WINDOWS-1252', 'WINDOWS-1251', 'BIG5', 'GB2312');
	697
ae9124	698	if (function_exists('mb_detect_encoding') && ($enc = mb_detect_encoding($string, $encodings)))
abdc58	699	return $enc;
A	700
ed132e	701	// No match, check for UTF-8
T	702	// from http://w3.org/International/questions/qa-forms-utf-8.html
	703	if (preg_match('/\A(
	704	[\x09\x0A\x0D\x20-\x7E]
	705	\| [\xC2-\xDF][\x80-\xBF]
	706	\| \xE0[\xA0-\xBF][\x80-\xBF]
	707	\| [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}
	708	\| \xED[\x80-\x9F][\x80-\xBF]
	709	\| \xF0[\x90-\xBF][\x80-\xBF]{2}
	710	\| [\xF1-\xF3][\x80-\xBF]{3}
	711	\| \xF4[\x80-\x8F][\x80-\xBF]{2}
	712	)*\z/xs', substr($string, 0, 2048)))
	713	return 'UTF-8';
	714
ae9124	715	return rcmail::get_instance()->config->get('default_charset', 'ISO-8859-1'); # fallback to Latin-1
ed132e	716	}
T	717
	718	}