Utils.php
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Utils.php
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	<?php

	/**
	* Test class to test rcube_utils class
	*
	* @package Tests
	*/
	class Framework_Utils extends PHPUnit_Framework_TestCase
	{

	/**
	* Valid email addresses for test_valid_email()
	*/
	function data_valid_email()
	{
	return array(
	array('email@domain.com', 'Valid email'),
	array('firstname.lastname@domain.com', 'Email contains dot in the address field'),
	array('email@subdomain.domain.com', 'Email contains dot with subdomain'),
	array('firstname+lastname@domain.com', 'Plus sign is considered valid character'),
	array('email@[123.123.123.123]', 'Square bracket around IP address'),
	array('email@[IPv6:::1]', 'Square bracket around IPv6 address (1)'),
	array('email@[IPv6:::1.2.3.4]', 'Square bracket around IPv6 address (2)'),
	array('email@[IPv6:2001:2d12:c4fe:5afe::1]', 'Square bracket around IPv6 address (3)'),
	array('"email"@domain.com', 'Quotes around email is considered valid'),
	array('1234567890@domain.com', 'Digits in address are valid'),
	array('email@domain-one.com', 'Dash in domain name is valid'),
	array('_______@domain.com', 'Underscore in the address field is valid'),
	array('email@domain.name', '.name is valid Top Level Domain name'),
	array('email@domain.co.jp', 'Dot in Top Level Domain name also considered valid (use co.jp as example here)'),
	array('firstname-lastname@domain.com', 'Dash in address field is valid'),
	array('test@xn--e1aaa0cbbbcacac.xn--p1ai', 'IDNA domain'),
	array('あいうえお@domain.com', 'Unicode char as address'),
	);
	}

	/**
	* Invalid email addresses for test_invalid_email()
	*/
	function data_invalid_email()
	{
	return array(
	array('plainaddress', 'Missing @ sign and domain'),
	array('#@%^%#$@#$@#.com', 'Garbage'),
	array('@domain.com', 'Missing username'),
	array('Joe Smith <email@domain.com>', 'Encoded html within email is invalid'),
	array('email.domain.com', 'Missing @'),
	array('email@domain@domain.com', 'Two @ sign'),
	array('.email@domain.com', 'Leading dot in address is not allowed'),
	array('email.@domain.com', 'Trailing dot in address is not allowed'),
	array('email..email@domain.com', 'Multiple dots'),
	array('email@domain.com (Joe Smith)', 'Text followed email is not allowed'),
	array('email@domain', 'Missing top level domain (.com/.net/.org/etc)'),
	array('email@-domain.com', 'Leading dash in front of domain is invalid'),
	// array('email@domain.web', '.web is not a valid top level domain'),
	array('email@123.123.123.123', 'IP address without brackets'),
	array('email@2001:2d12:c4fe:5afe::1', 'IPv6 address without brackets'),
	array('email@IPv6:2001:2d12:c4fe:5afe::1', 'IPv6 address without brackets (2)'),
	array('email@[111.222.333.44444]', 'Invalid IP format'),
	array('email@[111.222.255.257]', 'Invalid IP format (2)'),
	array('email@[.222.255.257]', 'Invalid IP format (3)'),
	array('email@[::1]', 'Invalid IPv6 format (1)'),
	array('email@[IPv6:2001:23x2:1]', 'Invalid IPv6 format (2)'),
	array('email@[IPv6:1111:2222:33333::4444:5555]', 'Invalid IPv6 format (3)'),
	array('email@[IPv6:1111::3333::4444:5555]', 'Invalid IPv6 format (4)'),
	array('email@domain..com', 'Multiple dot in the domain portion is invalid'),
	);
	}

	/**
	* @dataProvider data_valid_email
	*/
	function test_valid_email($email, $title)
	{
	$this->assertTrue(rcube_utils::check_email($email, false), $title);
	}

	/**
	* @dataProvider data_invalid_email
	*/
	function test_invalid_email($email, $title)
	{
	$this->assertFalse(rcube_utils::check_email($email, false), $title);
	}

	/**
	* Valid IP addresses for test_valid_ip()
	*/
	function data_valid_ip()
	{
	return array(
	array('0.0.0.0'),
	array('123.123.123.123'),
	array('::'),
	array('::1'),
	array('::1.2.3.4'),
	array('2001:2d12:c4fe:5afe::1'),
	array('2001::'),
	array('2001::1'),
	);
	}

	/**
	* Valid IP addresses for test_invalid_ip()
	*/
	function data_invalid_ip()
	{
	return array(
	array(''),
	array(0),
	array('123.123.123.1234'),
	array('1.1.1.1.1'),
	array('::1.2.3.260'),
	array('::1.0'),
	array(':::1'),
	array('2001:::1'),
	array('2001::c4fe:5afe::1'),
	array(':c4fe:5afe:1'),
	);
	}

	/**
	* @dataProvider data_valid_ip
	*/
	function test_valid_ip($ip)
	{
	$this->assertTrue(rcube_utils::check_ip($ip));
	}

	/**
	* @dataProvider data_invalid_ip
	*/
	function test_invalid_ip($ip)
	{
	$this->assertFalse(rcube_utils::check_ip($ip));
	}

	/**
	* Data for test_rep_specialchars_output()
	*/
	function data_rep_specialchars_output()
	{
	return array(
	array('', '', 'abc', 'abc'),
	array('', '', '?', '?'),
	array('', '', '"', '"'),
	array('', '', '<', '<'),
	array('', '', '>', '>'),
	array('', '', '&', '&'),
	array('', '', '&', '&amp;'),
	array('', '', '<a>', '<a>'),
	array('', 'remove', '<a>', ''),
	);
	}

	/**
	* Test for rep_specialchars_output
	* @dataProvider data_rep_specialchars_output
	*/
	function test_rep_specialchars_output($type, $mode, $str, $res)
	{
	$result = rcube_utils::rep_specialchars_output(
	$str, $type ? $type : 'html', $mode ? $mode : 'strict');

	$this->assertEquals($result, $res);
	}

	/**
	* rcube_utils::mod_css_styles()
	*/
	function test_mod_css_styles()
	{
	$css = file_get_contents(TESTS_DIR . 'src/valid.css');
	$mod = rcube_utils::mod_css_styles($css, 'rcmbody');

	$this->assertRegExp('/#rcmbody\s+\{/', $mod, "Replace body style definition");
	$this->assertRegExp('/#rcmbody h1\s\{/', $mod, "Prefix tag styles (single)");
	$this->assertRegExp('/#rcmbody h1, #rcmbody h2, #rcmbody h3, #rcmbody textarea\s+\{/', $mod, "Prefix tag styles (multiple)");
	$this->assertRegExp('/#rcmbody \.noscript\s+\{/', $mod, "Prefix class styles");

	$css = file_get_contents(TESTS_DIR . 'src/media.css');
	$mod = rcube_utils::mod_css_styles($css, 'rcmbody');

	$this->assertContains('#rcmbody table[class=w600]', $mod, 'Replace styles nested in @media block');
	$this->assertContains('#rcmbody {width:600px', $mod, 'Replace body selector nested in @media block');
	$this->assertContains('#rcmbody {min-width:474px', $mod, 'Replace body selector nested in @media block (#5811)');
	}

	/**
	* rcube_utils::mod_css_styles()
	*/
	function test_mod_css_styles_xss()
	{
	$mod = rcube_utils::mod_css_styles("body.main2cols { background-image: url('../images/leftcol.png'); }", 'rcmbody');
	$this->assertEquals("/* evil! */", $mod, "No url() values allowed");

	$mod = rcube_utils::mod_css_styles("@import url('http://localhost/somestuff/css/master.css');", 'rcmbody');
	$this->assertEquals("/* evil! */", $mod, "No import statements");

	$mod = rcube_utils::mod_css_styles("left:expression(document.body.offsetWidth-20)", 'rcmbody');
	$this->assertEquals("/* evil! */", $mod, "No expression properties");

	$mod = rcube_utils::mod_css_styles("left:exp/* */ression( alert('xss3') )", 'rcmbody');
	$this->assertEquals("/* evil! */", $mod, "Don't allow encoding quirks");

	$mod = rcube_utils::mod_css_styles("background:\\0075\\0072\\00006c( javascript:alert('xss') )", 'rcmbody');
	$this->assertEquals("/* evil! */", $mod, "Don't allow encoding quirks (2)");

	$mod = rcube_utils::mod_css_styles("background: \\75 \\72 \\6C ('/images/img.png')", 'rcmbody');
	$this->assertEquals("/* evil! */", $mod, "Don't allow encoding quirks (3)");

	$mod = rcube_utils::mod_css_styles("background: u\\r\\l('/images/img.png')", 'rcmbody');
	$this->assertEquals("/* evil! */", $mod, "Don't allow encoding quirks (4)");

	// position: fixed (#5264)
	$mod = rcube_utils::mod_css_styles(".test { position: fixed; }", 'rcmbody');
	$this->assertEquals("#rcmbody .test { position: absolute; }", $mod, "Replace position:fixed with position:absolute (0)");
	$mod = rcube_utils::mod_css_styles(".test { position:\nfixed; }", 'rcmbody');
	$this->assertEquals("#rcmbody .test { position: absolute; }", $mod, "Replace position:fixed with position:absolute (1)");
	$mod = rcube_utils::mod_css_styles(".test { position:/**/fixed; }", 'rcmbody');
	$this->assertEquals("#rcmbody .test { position: absolute; }", $mod, "Replace position:fixed with position:absolute (2)");

	// position: fixed (#6898)
	$mod = rcube_utils::mod_css_styles(".test { position : fixed; top: 0; }", 'rcmbody');
	$this->assertEquals("#rcmbody .test { position: absolute; top: 0; }", $mod, "Replace position:fixed with position:absolute (3)");
	$mod = rcube_utils::mod_css_styles(".test { position/**/: fixed; top: 0; }", 'rcmbody');
	$this->assertEquals("#rcmbody .test { position: absolute; top: 0; }", $mod, "Replace position:fixed with position:absolute (4)");
	$mod = rcube_utils::mod_css_styles(".test { position\n: fixed; top: 0; }", 'rcmbody');
	$this->assertEquals("#rcmbody .test { position: absolute; top: 0; }", $mod, "Replace position:fixed with position:absolute (5)");

	// allow data URIs with images (#5580)
	$mod = rcube_utils::mod_css_styles("body { background-image: url(data:image/png;base64,123); }", 'rcmbody');
	$this->assertContains("#rcmbody { background-image: url(data:image/png;base64,123);", $mod, "Data URIs in url() allowed [1]");
	$mod = rcube_utils::mod_css_styles("body { background-image: url(data:image/png;base64,123); }", 'rcmbody', true);
	$this->assertContains("#rcmbody { background-image: url(data:image/png;base64,123);", $mod, "Data URIs in url() allowed [2]");
	}

	/**
	* rcube_utils::mod_css_styles()'s prefix argument handling
	*/
	function test_mod_css_styles_prefix()
	{
	$css = '
	.one { font-size: 10pt; }
	.three.four { font-weight: bold; }
	#id1 { color: red; }
	#id2.class:focus { color: white; }
	.five:not(.test), { background: transparent; }
	div .six { position: absolute; }
	p > i { font-size: 120%; }
	div#some { color: yellow; }
	@media screen and (max-width: 699px) and (min-width: 520px) {
	li a.button { padding-left: 30px; }
	}
	';
	$mod = rcube_utils::mod_css_styles($css, 'rc', true, 'test');

	$this->assertContains('#rc .testone', $mod);
	$this->assertContains('#rc .testthree.testfour', $mod);
	$this->assertContains('#rc #testid1', $mod);
	$this->assertContains('#rc #testid2.testclass:focus', $mod);
	$this->assertContains('#rc .testfive:not(.testtest)', $mod);
	$this->assertContains('#rc div .testsix', $mod);
	$this->assertContains('#rc p > i ', $mod);
	$this->assertContains('#rc div#testsome', $mod);
	$this->assertContains('#rc li a.testbutton', $mod);
	}

	function test_xss_entity_decode()
	{
	$mod = rcube_utils::xss_entity_decode("<img/src=x onerror=alert(1)// </b>");
	$this->assertNotContains('<img', $mod, "Strip (encoded) tags from style node");

	$mod = rcube_utils::xss_entity_decode('#foo:after{content:"\003Cimg/src=x onerror=alert(2)>";}');
	$this->assertNotContains('<img', $mod, "Strip (encoded) tags from content property");

	$mod = rcube_utils::xss_entity_decode("background: u\\r\\00006c('/images/img.png')");
	$this->assertContains("url(", $mod, "Escape sequences resolving");

	// #5747
	$mod = rcube_utils::xss_entity_decode('<!-- #foo { content:css; } -->');
	$this->assertContains('#foo', $mod, "Strip HTML comments from content, but not the content");
	}

	/**
	* Check rcube_utils::explode_quoted_string()
	*/
	function test_explode_quoted_string()
	{
	$data = array(
	'"a,b"' => array('"a,b"'),
	'"a,b","c,d"' => array('"a,b"','"c,d"'),
	'"a,\\"b",d' => array('"a,\\"b"', 'd'),
	);

	foreach ($data as $text => $res) {
	$result = rcube_utils::explode_quoted_string(',', $text);
	$this->assertSame($res, $result);
	}
	}

	/**
	* Check rcube_utils::explode_quoted_string() compat. with explode()
	*/
	function test_explode_quoted_string_compat()
	{
	$data = array('', 'a,b,c', 'a', ',', ',a');

	foreach ($data as $text) {
	$result = rcube_utils::explode_quoted_string(',', $text);
	$this->assertSame(explode(',', $text), $result);
	}
	}

	/**
	* rcube_utils::get_boolean()
	*/
	function test_get_boolean()
	{
	$input = array(
	false, 'false', '0', 'no', 'off', 'nein', 'FALSE', '', null,
	);

	foreach ($input as $idx => $value) {
	$this->assertFalse(rcube_utils::get_boolean($value), "Invalid result for $idx test item");
	}

	$input = array(
	true, 'true', '1', 1, 'yes', 'anything', 1000,
	);

	foreach ($input as $idx => $value) {
	$this->assertTrue(rcube_utils::get_boolean($value), "Invalid result for $idx test item");
	}
	}

	/**
	* rcube:utils::file2class()
	*/
	function test_file2class()
	{
	$test = array(
	array('', '', 'unknown'),
	array('text', 'text', 'text'),
	array('image/png', 'image.png', 'image png'),
	);

	foreach ($test as $v) {
	$result = rcube_utils::file2class($v[0], $v[1]);
	$this->assertSame($v[2], $result);
	}
	}

	/**
	* rcube:utils::strtotime()
	*/
	function test_strtotime()
	{
	// this test depends on system timezone if not set
	date_default_timezone_set('UTC');

	$test = array(
	'1' => 1,
	'' => 0,
	'abc-555' => 0,
	'2013-04-22' => 1366588800,
	'2013/04/22' => 1366588800,
	'2013.04.22' => 1366588800,
	'22-04-2013' => 1366588800,
	'22/04/2013' => 1366588800,
	'22.04.2013' => 1366588800,
	'22.4.2013' => 1366588800,
	'20130422' => 1366588800,
	'2013/06/21 12:00:00 UTC' => 1371816000,
	'2013/06/21 12:00:00 Europe/Berlin' => 1371808800,
	);

	foreach ($test as $datetime => $ts) {
	$result = rcube_utils::strtotime($datetime);
	$this->assertSame($ts, $result, "Error parsing date: $datetime");
	}
	}

	/**
	* rcube:utils::anytodatetime()
	*/
	function test_anytodatetime()
	{
	$test = array(
	'2013-04-22' => '2013-04-22',
	'2013/04/22' => '2013-04-22',
	'2013.04.22' => '2013-04-22',
	'22-04-2013' => '2013-04-22',
	'22/04/2013' => '2013-04-22',
	'22.04.2013' => '2013-04-22',
	'04/22/2013' => '2013-04-22',
	'22.4.2013' => '2013-04-22',
	'20130422' => '2013-04-22',
	'1900-10-10' => '1900-10-10',
	'01-01-1900' => '1900-01-01',
	'01/30/1960' => '1960-01-30',
	'1960.12.11 01:02:00' => '1960-12-11',
	);

	foreach ($test as $datetime => $ts) {
	$result = rcube_utils::anytodatetime($datetime);
	$this->assertSame($ts, $result ? $result->format('Y-m-d') : false, "Error parsing date: $datetime");
	}

	$test = array(
	'12/11/2013 01:02:00' => '2013-11-12 01:02:00',
	'1960.12.11 01:02:00' => '1960-12-11 01:02:00',
	);

	foreach ($test as $datetime => $ts) {
	$result = rcube_utils::anytodatetime($datetime);
	$this->assertSame($ts, $result ? $result->format('Y-m-d H:i:s') : false, "Error parsing date: $datetime");
	}

	$test = array(
	'Sun, 4 Mar 2018 03:32:08 +0300 (MSK)' => '2018-03-04 03:32:08 +0300',
	);

	foreach ($test as $datetime => $ts) {
	$result = rcube_utils::anytodatetime($datetime);
	$this->assertSame($ts, $result ? $result->format('Y-m-d H:i:s O') : false, "Error parsing date: $datetime");
	}
	}

	/**
	* rcube:utils::anytodatetime()
	*/
	function test_anytodatetime_timezone()
	{
	$tz = new DateTimeZone('Europe/Helsinki');
	$test = array(
	'Jan 1st 2014 +0800' => '2013-12-31 18:00', // result in target timezone
	'Jan 1st 14 45:42' => '2014-01-01 00:00', // force fallback to rcube_utils::strtotime()
	'Jan 1st 2014 UK' => '2014-01-01 00:00',
	'1520587800' => '2018-03-09 11:30', // unix timestamp conversion
	'Invalid date' => false,
	);

	foreach ($test as $datetime => $ts) {
	$result = rcube_utils::anytodatetime($datetime, $tz);
	if ($result) $result->setTimezone($tz); // move to target timezone for comparison
	$this->assertSame($ts, $result ? $result->format('Y-m-d H:i') : false, "Error parsing date: $datetime");
	}
	}

	/**
	* rcube:utils::format_datestr()
	*/
	function test_format_datestr()
	{
	$test = array(
	array('abc-555', 'abc', 'abc-555'),
	array('2013-04-22', 'Y-m-d', '2013-04-22'),
	array('22/04/2013', 'd/m/Y', '2013-04-22'),
	array('4.22.2013', 'm.d.Y', '2013-04-22'),
	);

	foreach ($test as $data) {
	$result = rcube_utils::format_datestr($data[0], $data[1]);
	$this->assertSame($data[2], $result, "Error formatting date: " . $data[0]);
	}
	}

	/**
	* rcube:utils::tokenize_string()
	*/
	function test_tokenize_string()
	{
	$test = array(
	'' => array(),
	'abc d' => array('abc'),
	'abc de' => array('abc','de'),
	'äàé;êöü-xyz' => array('äàé','êöü','xyz'),
	'日期格式' => array('日期格式'),
	);

	foreach ($test as $input => $output) {
	$result = rcube_utils::tokenize_string($input);
	$this->assertSame($output, $result);
	}
	}

	/**
	* rcube:utils::normalize_string()
	*/
	function test_normalize_string()
	{
	$test = array(
	'' => '',
	'abc def' => 'abc def',
	'ÇçäâàåæéêëèïîìÅÉöôòüûùÿøØáíóúñÑÁÂÀãÃÊËÈÍÎÏÓÔõÕÚÛÙýÝ' => 'ccaaaaaeeeeiiiaeooouuuyooaiounnaaaaaeeeiiioooouuuyy',
	'ąáâäćçčéęëěíîłľĺńňóôöŕřśšşťţůúűüźžżýĄŚŻŹĆ' => 'aaaaccceeeeiilllnnooorrsssttuuuuzzzyaszzc',
	'ßs' => 'sss',
	'Xae' => 'xa',
	'Xoe' => 'xo',
	'Xue' => 'xu',
	'项目' => '项目',
	);

	// this test fails on PHP 5.3.3
	if (PHP_VERSION_ID > 50303) {
	$test['ß'] = '';
	$test['日'] = '';
	}

	foreach ($test as $input => $output) {
	$result = rcube_utils::normalize_string($input);
	$this->assertSame($output, $result, "Error normalizing '$input'");
	}
	}

	/**
	* rcube:utils::words_match()
	*/
	function test_words_match()
	{
	$test = array(
	array('', 'test', false),
	array('test', 'test', true),
	array('test', 'none', false),
	array('test', 'test xyz', false),
	array('test xyz', 'test xyz', true),
	array('this is test', 'test', true),
	// try some binary content
	array('this is test ' . base64_decode('R0lGODlhDwAPAIAAAMDAwAAAACH5BAEAAAAALAAAAAAPAA8AQAINhI+py+0Po5y02otnAQA7'), 'test', true),
	array('this is test ' . base64_decode('R0lGODlhDwAPAIAAAMDAwAAAACH5BAEAAAAALAAAAAAPAA8AQAINhI+py+0Po5y02otnAQA7'), 'none', false),
	);

	foreach ($test as $idx => $params) {
	$result = rcube_utils::words_match($params[0], $params[1]);
	$this->assertSame($params[2], $result, "words_match() at index $idx");
	}
	}

	/**
	* rcube:utils::is_absolute_path()
	*/
	function test_is_absolute_path()
	{
	if (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN') {
	$test = array(
	'' => false,
	"C:\\" => true,
	'some/path' => false,
	);
	}
	else {
	$test = array(
	'' => false,
	'/path' => true,
	'some/path' => false,
	);
	}

	foreach ($test as $input => $output) {
	$result = rcube_utils::is_absolute_path($input);
	$this->assertSame($output, $result);
	}
	}

	/**
	* rcube:utils::random_bytes()
	*/
	function test_random_bytes()
	{
	$this->assertRegexp('/^[a-zA-Z0-9]{15}$/', rcube_utils::random_bytes(15));
	$this->assertSame(15, strlen(rcube_utils::random_bytes(15, true)));
	$this->assertSame(1, strlen(rcube_utils::random_bytes(1)));
	$this->assertSame(0, strlen(rcube_utils::random_bytes(0)));
	$this->assertSame(0, strlen(rcube_utils::random_bytes(-1)));
	}

	/**
	* Test-Cases for IDN to ASCII and IDN to UTF-8
	*/
	function data_idn_convert()
	{

	/*
	* Check https://en.wikipedia.org/wiki/List_of_Internet_top-level_domains#Internationalized_brand_top-level_domains
	* and https://github.com/true/php-punycode/blob/master/tests/PunycodeTest.php for more Test-Data
	*/

	return array(
	array('test@vermögensberater', 'test@xn--vermgensberater-ctb'),
	array('test@vermögensberatung', 'test@xn--vermgensberatung-pwb'),
	array('test@グーグル', 'test@xn--qcka1pmc'),
	array('test@谷歌', 'test@xn--flw351e'),
	array('test@中信', 'test@xn--fiq64b'),
	array('test@рф.ru', 'test@xn--p1ai.ru'),
	array('test@δοκιμή.gr', 'test@xn--jxalpdlp.gr'),
	array('test@gwóźdź.pl', 'test@xn--gwd-hna98db.pl'),
	array('рф.ru@рф.ru', 'рф.ru@xn--p1ai.ru'),
	array('vermögensberater', 'xn--vermgensberater-ctb'),
	array('vermögensberatung', 'xn--vermgensberatung-pwb'),
	array('グーグル', 'xn--qcka1pmc'),
	array('谷歌', 'xn--flw351e'),
	array('中信', 'xn--fiq64b'),
	array('рф.ru', 'xn--p1ai.ru'),
	array('δοκιμή.gr', 'xn--jxalpdlp.gr'),
	array('gwóźdź.pl', 'xn--gwd-hna98db.pl'),
	array('fußball.de', 'xn--fuball-cta.de'),
	);
	}

	/**
	* Test idn_to_ascii
	*
	* @param string $decoded Decoded email address
	* @param string $encoded Encoded email address
	* @dataProvider data_idn_convert
	*/
	function test_idn_to_ascii($decoded, $encoded)
	{
	$this->assertEquals(rcube_utils::idn_to_ascii($decoded), $encoded);
	}

	/**
	* Test idn_to_utf8
	*
	* @param string $decoded Decoded email address
	* @param string $encoded Encoded email address
	* @dataProvider data_idn_convert
	*/
	function test_idn_to_utf8($decoded, $encoded)
	{
	$this->assertEquals(rcube_utils::idn_to_utf8($encoded), $decoded);
	}

	/**
	* Test idn_to_ascii with non-domain input (#6224)
	*/
	function test_idn_to_ascii_special()
	{
	$this->assertEquals(rcube_utils::idn_to_ascii('H.S'), 'H.S');
	$this->assertEquals(rcube_utils::idn_to_ascii('d.-h.lastname'), 'd.-h.lastname');
	}

	/**
	* Test-Cases for test_parse_host()
	*/
	function data_parse_host()
	{
	return array(
	array('%z', 'hostname', 'hostname'),
	array('%z', 'domain.tld', 'domain.tld'),
	array('%z', 'host.domain.tld', 'domain.tld'),
	array('%z', 'host1.host2.domain.tld', 'host2.domain.tld'),
	);
	}

	/**
	* Test parse_host()
	*
	* @dataProvider data_parse_host
	*/
	function test_parse_host($name, $host, $result)
	{
	$this->assertEquals(rcube_utils::parse_host($name, $host), $result);
	}
	}

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