githubFork/roundcubemail.git

Aleksander Machniak

2016-05-16 0b7e26c1bf6bc7a684eb3a214d92d3927306cd8a

commit \| author \| age
197601	1	<?php
T	2
a95874	3	/**
197601	4	+-----------------------------------------------------------------------+
e019f2	5	\| This file is part of the Roundcube Webmail client \|
7b9245	6	\| Copyright (C) 2008-2014, The Roundcube Dev Team \|
7fe381	7	\| \|
T	8	\| Licensed under the GNU General Public License version 3 or \|
	9	\| any later version with exceptions for skins & plugins. \|
	10	\| See the README file for a full license statement. \|
197601	11	\| \|
T	12	\| PURPOSE: \|
	13	\| Class to read configuration settings \|
	14	+-----------------------------------------------------------------------+
	15	\| Author: Thomas Bruederli <roundcube@gmail.com> \|
	16	+-----------------------------------------------------------------------+
	17	*/
	18
	19	/**
e019f2	20	* Configuration class for Roundcube
197601	21	*
9ab346	22	* @package Framework
AM	23	* @subpackage Core
197601	24	*/
T	25	class rcube_config
	26	{
aff970	27	const DEFAULT_SKIN = 'larry';
TB	28
7b9245	29	private $env = '';
AM	30	private $paths = array();
	31	private $prop = array();
	32	private $errors = array();
2eb794	33	private $userprefs = array();
7b9245	34
0ac416	35
A	36	/**
	37	* Renamed options
	38	*
	39	* @var array
	40	*/
	41	private $legacy_props = array(
	42	// new name => old name
	43	'mail_pagesize' => 'pagesize',
	44	'addressbook_pagesize' => 'pagesize',
651c7b	45	'reply_mode' => 'top_posting',
f22654	46	'refresh_interval' => 'keep_alive',
AM	47	'min_refresh_interval' => 'min_keep_alive',
67ac6e	48	'messages_cache_ttl' => 'message_cache_lifetime',
df9d00	49	'redundant_attachments_cache_ttl' => 'redundant_attachments_memcache_ttl',
0ac416	50	);
197601	51
2eb794	52	/**
A	53	* Object constructor
deb2b8	54	*
TB	55	* @param string Environment suffix for config files to load
2eb794	56	*/
deb2b8	57	public function __construct($env = '')
2471d3	58	{
deb2b8	59	$this->env = $env;
fb5f52	60
TB	61	if ($paths = getenv('RCUBE_CONFIG_PATH')) {
	62	$this->paths = explode(PATH_SEPARATOR, $paths);
	63	// make all paths absolute
	64	foreach ($this->paths as $i => $path) {
517c9f	65	if (!rcube_utils::is_absolute_path($path)) {
fb5f52	66	if ($realpath = realpath(RCUBE_INSTALL_PATH . $path)) {
TB	67	$this->paths[$i] = unslashify($realpath) . '/';
	68	}
	69	else {
	70	unset($this->paths[$i]);
	71	}
	72	}
	73	else {
	74	$this->paths[$i] = unslashify($path) . '/';
	75	}
	76	}
	77	}
	78
	79	if (defined('RCUBE_CONFIG_DIR') && !in_array(RCUBE_CONFIG_DIR, $this->paths)) {
	80	$this->paths[] = RCUBE_CONFIG_DIR;
	81	}
	82
	83	if (empty($this->paths)) {
	84	$this->paths[] = RCUBE_INSTALL_PATH . 'config/';
	85	}
deb2b8	86
2eb794	87	$this->load();
baecd8	88
TB	89	// Defaults, that we do not require you to configure,
791ee6	90	// but contain information that is used in various locations in the code:
AM	91	if (empty($this->prop['contactlist_fields'])) {
	92	$this->set('contactlist_fields', array('name', 'firstname', 'surname', 'email'));
	93	}
2471d3	94	}
2eb794	95
A	96	/**
e4b991	97	* @brief Guess the type the string may fit into.
AB	98	*
	99	* Look inside the string to determine what type might be best as a container.
	100	*
	101	* @param $value The value to inspect
	102	*
	103	* @return The guess at the type.
	104	*/
bca7dc	105	private function guess_type($value)
TB	106	{
39137f	107	$type = 'string';
bca7dc	108
e4b991	109	// array requires hint to be passed.
bca7dc	110
TB	111	if (preg_match('/^[-+]?(\d+(\.\d*)?\|\.\d+)([eE][-+]?\d+)?$/', $value) !== false) {
39137f	112	$type = 'double';
bca7dc	113	}
TB	114	else if (preg_match('/^\d+$/', $value) !== false) {
39137f	115	$type = 'integer';
bca7dc	116	}
TB	117	else if (preg_match('/(t(rue)?)\|(f(alse)?)/i', $value) !== false) {
39137f	118	$type = 'boolean';
e4b991	119	}
bca7dc	120
39137f	121	return $type;
e4b991	122	}
AB	123
	124	/**
	125	* @brief Parse environment variable into PHP type.
	126	*
	127	* Perform an appropriate parsing of the string to create the desired PHP type.
	128	*
	129	* @param $string String to parse into PHP type
39137f	130	* @param $type Type of value to return
e4b991	131	*
AB	132	* @return Appropriately typed interpretation of $string.
	133	*/
bca7dc	134	private function parse_env($string, $type)
TB	135	{
e4b991	136	$_ = $string;
bca7dc	137
e4b991	138	switch ($type) {
AB	139	case 'boolean':
	140	$_ = (boolean) $_;
	141	break;
	142	case 'integer':
	143	$_ = (integer) $_;
	144	break;
	145	case 'double':
	146	$_ = (double) $_;
	147	break;
	148	case 'string':
	149	break;
	150	case 'array':
	151	$_ = json_decode($_, true);
	152	break;
	153	case 'object':
	154	$_ = json_decode($_, false);
	155	break;
	156	case 'resource':
	157	case 'NULL':
	158	default:
	159	$_ = $this->parse_env($_, $this->guess_type($_));
	160	}
7b9245	161
e4b991	162	return $_;
AB	163	}
	164
	165	/**
	166	* @brief Get environment variable value.
	167	*
	168	* Retrieve an environment variable's value or if it's not found, return the
	169	* provided default value.
	170	*
39137f	171	* @param $varname Environment variable name
e4b991	172	* @param $default_value Default value to return if necessary
39137f	173	* @param $type Type of value to return
e4b991	174	*
AB	175	* @return Value of the environment variable or default if not found.
	176	*/
bca7dc	177	private function getenv_default($varname, $default_value, $type = null)
TB	178	{
39137f	179	$value = getenv($varname);
7b9245	180
39137f	181	if ($value === false) {
AM	182	$value = $default_value;
bca7dc	183	}
TB	184	else {
39137f	185	$value = $this->parse_env($value, $type ?: gettype($default_value));
e4b991	186	}
7b9245	187
39137f	188	return $value;
e4b991	189	}
AB	190
	191	/**
2eb794	192	* Load config from local config file
A	193	*
	194	* @todo Remove global $CONFIG
	195	*/
	196	private function load()
2471d3	197	{
461a30	198	// Load default settings
deb2b8	199	if (!$this->load_from_file('defaults.inc.php')) {
461a30	200	$this->errors[] = 'defaults.inc.php was not found.';
AM	201	}
2eb794	202
461a30	203	// load main config file
deb2b8	204	if (!$this->load_from_file('config.inc.php')) {
461a30	205	// Old configuration files
39137f	206	if (!$this->load_from_file('main.inc.php') \|\| !$this->load_from_file('db.inc.php')) {
0f39b4	207	$this->errors[] = 'config.inc.php was not found.';
TB	208	}
	209	else if (rand(1,100) == 10) { // log warning on every 100th request (average)
	210	trigger_error("config.inc.php was not found. Please migrate your config by running bin/update.sh", E_USER_WARNING);
	211	}
461a30	212	}
f52c4f	213
2eb794	214	// load host-specific configuration
955a61	215	$this->load_host_config();
2eb794	216
A	217	// set skin (with fallback to old 'skin_path' property)
740875	218	if (empty($this->prop['skin'])) {
AM	219	if (!empty($this->prop['skin_path'])) {
	220	$this->prop['skin'] = str_replace('skins/', '', unslashify($this->prop['skin_path']));
	221	}
	222	else {
aff970	223	$this->prop['skin'] = self::DEFAULT_SKIN;
740875	224	}
AM	225	}
9f1652	226
TB	227	// larry is the new default skin :-)
39137f	228	if ($this->prop['skin'] == 'default') {
aff970	229	$this->prop['skin'] = self::DEFAULT_SKIN;
39137f	230	}
2eb794	231
A	232	// fix paths
e17dec	233	foreach (array('log_dir' => 'logs', 'temp_dir' => 'temp') as $key => $dir) {
AM	234	foreach (array($this->prop[$key], '../' . $this->prop[$key], RCUBE_INSTALL_PATH . $dir) as $path) {
	235	if ($path && ($realpath = realpath(unslashify($path)))) {
	236	$this->prop[$key] = $realpath;
	237	break;
	238	}
	239	}
	240	}
f52c4f	241
2eb794	242	// fix default imap folders encoding
7b9245	243	foreach (array('drafts_mbox', 'junk_mbox', 'sent_mbox', 'trash_mbox') as $folder) {
a92beb	244	$this->prop[$folder] = rcube_charset::convert($this->prop[$folder], RCUBE_CHARSET, 'UTF7-IMAP');
7b9245	245	}
2eb794	246
A	247	// set PHP error logging according to config
	248	if ($this->prop['debug_level'] & 1) {
	249	ini_set('log_errors', 1);
	250
	251	if ($this->prop['log_driver'] == 'syslog') {
	252	ini_set('error_log', 'syslog');
	253	}
	254	else {
	255	ini_set('error_log', $this->prop['log_dir'].'/errors');
	256	}
	257	}
23b495	258
A	259	// enable display_errors in 'show' level, but not for ajax requests
	260	ini_set('display_errors', intval(empty($_REQUEST['_remote']) && ($this->prop['debug_level'] & 4)));
0829b7	261
5879c0	262	// remove deprecated properties
T	263	unset($this->prop['dst_active']);
2eb794	264
A	265	// export config data
	266	$GLOBALS['CONFIG'] = &$this->prop;
2471d3	267	}
1854c4	268
2eb794	269	/**
A	270	* Load a host-specific config file if configured
	271	* This will merge the host specific configuration with the given one
	272	*/
	273	private function load_host_config()
	274	{
955a61	275	if (empty($this->prop['include_host_config'])) {
AM	276	return;
2eb794	277	}
2471d3	278
955a61	279	foreach (array('HTTP_HOST', 'SERVER_NAME', 'SERVER_ADDR') as $key) {
AM	280	$fname = null;
	281	$name = $_SERVER[$key];
	282
	283	if (!$name) {
	284	continue;
	285	}
	286
	287	if (is_array($this->prop['include_host_config'])) {
	288	$fname = $this->prop['include_host_config'][$name];
	289	}
	290	else {
	291	$fname = preg_replace('/[^a-z0-9\.\-_]/i', '', $name) . '.inc.php';
	292	}
	293
	294	if ($fname && $this->load_from_file($fname)) {
	295	return;
	296	}
2eb794	297	}
83a763	298	}
2eb794	299
A	300	/**
	301	* Read configuration from a file
	302	* and merge with the already stored config values
	303	*
deb2b8	304	* @param string $file Name of the config file to be loaded
2eb794	305	* @return booelan True on success, false on failure
A	306	*/
deb2b8	307	public function load_from_file($file)
2eb794	308	{
fb5f52	309	$success = false;
7c9850	310
fb5f52	311	foreach ($this->resolve_paths($file) as $fpath) {
TB	312	if ($fpath && is_file($fpath) && is_readable($fpath)) {
39137f	313	// use output buffering, we don't need any output here
fb5f52	314	ob_start();
TB	315	include($fpath);
	316	ob_end_clean();
	317
	318	if (is_array($config)) {
	319	$this->merge($config);
	320	$success = true;
	321	}
	322	// deprecated name of config variable
a315bf	323	if (is_array($rcmail_config)) {
fb5f52	324	$this->merge($rcmail_config);
TB	325	$success = true;
	326	}
2eb794	327	}
A	328	}
	329
fb5f52	330	return $success;
2eb794	331	}
A	332
deb2b8	333	/**
fb5f52	334	* Helper method to resolve absolute paths to the given config file.
deb2b8	335	* This also takes the 'env' property into account.
fb5f52	336	*
TB	337	* @param string Filename or absolute file path
	338	* @param boolean Return -$env file path if exists
	339	* @return array List of candidates in config dir path(s)
deb2b8	340	*/
9e9d62	341	public function resolve_paths($file, $use_env = true)
deb2b8	342	{
517c9f	343	$files = array();
AM	344	$abs_path = rcube_utils::is_absolute_path($file);
fb5f52	345
TB	346	foreach ($this->paths as $basepath) {
	347	$realpath = $abs_path ? $file : realpath($basepath . '/' . $file);
	348
	349	// check if <file>-env.ini exists
	350	if ($realpath && $use_env && !empty($this->env)) {
	351	$envfile = preg_replace('/\.(inc.php)$/', '-' . $this->env . '.\\1', $realpath);
39137f	352	if (is_file($envfile)) {
fb5f52	353	$realpath = $envfile;
39137f	354	}
fb5f52	355	}
TB	356
	357	if ($realpath) {
	358	$files[] = $realpath;
	359
	360	// no need to continue the loop if an absolute file path is given
	361	if ($abs_path) {
	362	break;
	363	}
	364	}
deb2b8	365	}
TB	366
fb5f52	367	return $files;
TB	368	}
2eb794	369
A	370	/**
	371	* Getter for a specific config parameter
	372	*
5c461b	373	* @param string $name Parameter name
A	374	* @param mixed $def Default value if not set
2eb794	375	* @return mixed The requested config value
A	376	*/
	377	public function get($name, $def = null)
	378	{
0ac416	379	if (isset($this->prop[$name])) {
A	380	$result = $this->prop[$name];
	381	}
	382	else {
	383	$result = $def;
	384	}
	385
bca7dc	386	$result = $this->getenv_default('ROUNDCUBE_' . strtoupper($name), $result);
39137f	387	$rcube = rcube::get_instance();
0ac416	388
7ebe06	389	if ($name == 'timezone') {
AM	390	if (empty($result) \|\| $result == 'auto') {
	391	$result = $this->client_timezone();
	392	}
8fb4f0	393	}
TB	394	else if ($name == 'client_mimetypes') {
39137f	395	if (!$result && !$def) {
8fb4f0	396	$result = 'text/plain,text/html,text/xml,image/jpeg,image/gif,image/png,image/bmp,image/tiff,application/x-javascript,application/pdf,application/x-shockwave-flash';
39137f	397	}
AM	398	if ($result && is_string($result)) {
8fb4f0	399	$result = explode(',', $result);
39137f	400	}
8fb4f0	401	}
e4b991	402
be98df	403	$plugin = $rcube->plugins->exec_hook('config_get', array(
A	404	'name' => $name, 'default' => $def, 'result' => $result));
183717	405
be98df	406	return $plugin['result'];
2eb794	407	}
A	408
	409	/**
	410	* Setter for a config parameter
	411	*
5c461b	412	* @param string $name Parameter name
A	413	* @param mixed $value Parameter value
2eb794	414	*/
A	415	public function set($name, $value)
	416	{
	417	$this->prop[$name] = $value;
	418	}
	419
	420	/**
	421	* Override config options with the given values (eg. user prefs)
	422	*
5c461b	423	* @param array $prefs Hash array with config props to merge over
2eb794	424	*/
A	425	public function merge($prefs)
	426	{
993cb6	427	$prefs = $this->fix_legacy_props($prefs);
2eb794	428	$this->prop = array_merge($this->prop, $prefs, $this->userprefs);
A	429	}
	430
	431	/**
	432	* Merge the given prefs over the current config
	433	* and make sure that they survive further merging.
	434	*
5c461b	435	* @param array $prefs Hash array with user prefs
2eb794	436	*/
A	437	public function set_user_prefs($prefs)
	438	{
993cb6	439	$prefs = $this->fix_legacy_props($prefs);
AM	440
bfb7d6	441	// Honor the dont_override setting for any existing user preferences
A	442	$dont_override = $this->get('dont_override');
	443	if (is_array($dont_override) && !empty($dont_override)) {
9f1652	444	foreach ($dont_override as $key) {
TB	445	unset($prefs[$key]);
bfb7d6	446	}
A	447	}
	448
a9cbba	449	// larry is the new default skin :-)
TB	450	if ($prefs['skin'] == 'default') {
aff970	451	$prefs['skin'] = self::DEFAULT_SKIN;
a9cbba	452	}
TB	453
2eb794	454	$this->userprefs = $prefs;
bfb7d6	455	$this->prop = array_merge($this->prop, $prefs);
2eb794	456	}
A	457
	458	/**
	459	* Getter for all config options
	460	*
993cb6	461	* @return array Hash array containing all config properties
2eb794	462	*/
A	463	public function all()
	464	{
e4b991	465	$props = $this->prop;
AB	466
7b9245	467	foreach ($props as $prop_name => $prop_value) {
e4b991	468	$props[$prop_name] = $this->getenv_default('ROUNDCUBE_' . strtoupper($prop_name), $prop_value);
7b9245	469	}
e4b991	470
38f1f5	471	$rcube = rcube::get_instance();
AM	472	$plugin = $rcube->plugins->exec_hook('config_get', array(
e4b991	473	'name' => '*', 'result' => $props));
38f1f5	474
AM	475	return $plugin['result'];
2eb794	476	}
A	477
da7178	478	/**
65082b	479	* Special getter for user's timezone offset including DST
T	480	*
	481	* @return float Timezone offset (in hours)
5879c0	482	* @deprecated
da7178	483	*/
T	484	public function get_timezone()
	485	{
7b9245	486	if ($tz = $this->get('timezone')) {
AM	487	try {
	488	$tz = new DateTimeZone($tz);
	489	return $tz->getOffset(new DateTime('now')) / 3600;
	490	}
	491	catch (Exception $e) {
	492	}
e86a21	493	}
5879c0	494
7b9245	495	return 0;
da7178	496	}
2eb794	497
A	498	/**
	499	* Return requested DES crypto key.
	500	*
5c461b	501	* @param string $key Crypto key name
39137f	502	*
2eb794	503	* @return string Crypto key
A	504	*/
	505	public function get_crypto_key($key)
	506	{
	507	// Bomb out if the requested key does not exist
e4c660	508	if (!array_key_exists($key, $this->prop) \|\| empty($this->prop[$key])) {
0c2596	509	rcube::raise_error(array(
2eb794	510	'code' => 500, 'type' => 'php',
A	511	'file' => __FILE__, 'line' => __LINE__,
	512	'message' => "Request for unconfigured crypto key \"$key\""
	513	), true, true);
	514	}
	515
e4c660	516	return $this->prop[$key];
AM	517	}
2eb794	518
e4c660	519	/**
AM	520	* Return configured crypto method.
	521	*
	522	* @return string Crypto method
	523	*/
	524	public function get_crypto_method()
	525	{
39137f	526	return $this->get('cipher_method') ?: 'DES-EDE3-CBC';
2eb794	527	}
A	528
	529	/**
	530	* Try to autodetect operating system and find the correct line endings
	531	*
	532	* @return string The appropriate mail header delimiter
	533	*/
	534	public function header_delimiter()
	535	{
	536	// use the configured delimiter for headers
086767	537	if (!empty($this->prop['mail_header_delimiter'])) {
A	538	$delim = $this->prop['mail_header_delimiter'];
7b9245	539	if ($delim == "\n" \|\| $delim == "\r\n") {
086767	540	return $delim;
7b9245	541	}
AM	542	else {
0c2596	543	rcube::raise_error(array(
086767	544	'code' => 500, 'type' => 'php',
413df0	545	'file' => __FILE__, 'line' => __LINE__,
086767	546	'message' => "Invalid mail_header_delimiter setting"
A	547	), true, false);
7b9245	548	}
086767	549	}
2eb794	550
A	551	$php_os = strtolower(substr(PHP_OS, 0, 3));
	552
	553	if ($php_os == 'win')
	554	return "\r\n";
	555
	556	if ($php_os == 'mac')
	557	return "\r\n";
	558
	559	return "\n";
	560	}
	561
	562	/**
	563	* Return the mail domain configured for the given host
	564	*
5c461b	565	* @param string $host IMAP host
A	566	* @param boolean $encode If true, domain name will be converted to IDN ASCII
2eb794	567	* @return string Resolved SMTP host
A	568	*/
e99991	569	public function mail_domain($host, $encode=true)
2eb794	570	{
A	571	$domain = $host;
	572
	573	if (is_array($this->prop['mail_domain'])) {
39137f	574	if (isset($this->prop['mail_domain'][$host])) {
2eb794	575	$domain = $this->prop['mail_domain'][$host];
39137f	576	}
2eb794	577	}
1aceb9	578	else if (!empty($this->prop['mail_domain'])) {
A	579	$domain = rcube_utils::parse_host($this->prop['mail_domain']);
	580	}
bb8721	581
1aceb9	582	if ($encode) {
A	583	$domain = rcube_utils::idn_to_ascii($domain);
	584	}
e99991	585
2eb794	586	return $domain;
A	587	}
bb8721	588
2eb794	589	/**
A	590	* Getter for error state
	591	*
	592	* @return mixed Error message on error, False if no errors
	593	*/
	594	public function get_error()
	595	{
	596	return empty($this->errors) ? false : join("\n", $this->errors);
	597	}
5879c0	598
T	599	/**
	600	* Internal getter for client's (browser) timezone identifier
	601	*/
	602	private function client_timezone()
	603	{
7ebe06	604	// @TODO: remove this legacy timezone handling in the future
AM	605	$props = $this->fix_legacy_props(array('timezone' => $_SESSION['timezone']));
	606
	607	if (!empty($props['timezone'])) {
086b15	608	try {
7ebe06	609	$tz = new DateTimeZone($props['timezone']);
086b15	610	return $tz->getName();
TB	611	}
	612	catch (Exception $e) { /* gracefully ignore */ }
	613	}
	614
	615	// fallback to server's timezone
	616	return date_default_timezone_get();
5879c0	617	}
T	618
f65890	619	/**
AM	620	* Convert legacy options into new ones
993cb6	621	*
AM	622	* @param array $props Hash array with config props
	623	*
	624	* @return array Converted config props
f65890	625	*/
993cb6	626	private function fix_legacy_props($props)
f65890	627	{
AM	628	foreach ($this->legacy_props as $new => $old) {
993cb6	629	if (isset($props[$old])) {
AM	630	if (!isset($props[$new])) {
	631	$props[$new] = $props[$old];
f65890	632	}
993cb6	633	unset($props[$old]);
f65890	634	}
AM	635	}
993cb6	636
7ebe06	637	// convert deprecated numeric timezone value
AM	638	if (isset($props['timezone']) && is_numeric($props['timezone'])) {
8eb085	639	if ($tz = self::timezone_name_from_abbr($props['timezone'])) {
7ebe06	640	$props['timezone'] = $tz;
AM	641	}
	642	else {
	643	unset($props['timezone']);
	644	}
	645	}
	646
993cb6	647	return $props;
f65890	648	}
8eb085	649
AM	650	/**
	651	* timezone_name_from_abbr() replacement. Converts timezone offset
	652	* into timezone name abbreviation.
	653	*
	654	* @param float $offset Timezone offset (in hours)
	655	*
	656	* @return string Timezone abbreviation
	657	*/
	658	static public function timezone_name_from_abbr($offset)
	659	{
	660	// List of timezones here is not complete - https://bugs.php.net/bug.php?id=44780
	661	if ($tz = timezone_name_from_abbr('', $offset * 3600, 0)) {
	662	return $tz;
	663	}
	664
	665	// try with more complete list (#1489261)
	666	$timezones = array(
	667	'-660' => "Pacific/Apia",
	668	'-600' => "Pacific/Honolulu",
	669	'-570' => "Pacific/Marquesas",
	670	'-540' => "America/Anchorage",
	671	'-480' => "America/Los_Angeles",
	672	'-420' => "America/Denver",
	673	'-360' => "America/Chicago",
	674	'-300' => "America/New_York",
	675	'-270' => "America/Caracas",
	676	'-240' => "America/Halifax",
	677	'-210' => "Canada/Newfoundland",
	678	'-180' => "America/Sao_Paulo",
	679	'-60' => "Atlantic/Azores",
	680	'0' => "Europe/London",
	681	'60' => "Europe/Paris",
	682	'120' => "Europe/Helsinki",
	683	'180' => "Europe/Moscow",
	684	'210' => "Asia/Tehran",
	685	'240' => "Asia/Dubai",
	686	'270' => "Asia/Kabul",
	687	'300' => "Asia/Karachi",
	688	'330' => "Asia/Kolkata",
	689	'345' => "Asia/Katmandu",
	690	'360' => "Asia/Yekaterinburg",
	691	'390' => "Asia/Rangoon",
	692	'420' => "Asia/Krasnoyarsk",
	693	'480' => "Asia/Shanghai",
	694	'525' => "Australia/Eucla",
	695	'540' => "Asia/Tokyo",
	696	'570' => "Australia/Adelaide",
	697	'600' => "Australia/Melbourne",
	698	'630' => "Australia/Lord_Howe",
	699	'660' => "Asia/Vladivostok",
	700	'690' => "Pacific/Norfolk",
	701	'720' => "Pacific/Auckland",
	702	'765' => "Pacific/Chatham",
	703	'780' => "Pacific/Enderbury",
	704	'840' => "Pacific/Kiritimati",
	705	);
	706
	707	return $timezones[(string) intval($offset * 60)];
	708	}
197601	709	}