roundcubemail/tests/Framework/Utils.php

<?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'),
        );
    }

    /**
     * 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('あいうえお@domain.com', 'Unicode char as address'),
            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);
    }

    /**
     * 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");
    }

    /**
     * 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(&#039;xss3&#039;) )", 'rcmbody');
        $this->assertEquals("/* evil! */", $mod, "Don't allow encoding quirks");

        $mod = rcube_utils::mod_css_styles("background:\\0075\\0072\\006c( javascript:alert(&#039;xss&#039;) )", 'rcmbody');
        $this->assertEquals("/* evil! */", $mod, "Don't allow encoding quirks (2)");
    }
}