<?php /** * Test class to test steps/mail/func.inc functions * * @package Tests */ class rcube_test_mailfunc extends UnitTestCase { function __construct() { $this->UnitTestCase('Mail body rendering tests'); // simulate environment to successfully include func.inc $GLOBALS['RCMAIL'] = $RCMAIL = rcmail::get_instance(); $GLOBALS['OUTPUT'] = $OUTPUT = $RCMAIL->load_gui(); $RCMAIL->action = 'autocomplete'; $RCMAIL->imap_init(false); $IMAP = $RCMAIL->imap; require_once INSTALL_PATH . 'program/steps/mail/func.inc'; $GLOBALS['EMAIL_ADDRESS_PATTERN'] = $EMAIL_ADDRESS_PATTERN; } /** * Helper method to create a HTML message part object */ function get_html_part($body) { $part = new rcube_message_part; $part->ctype_primary = 'text'; $part->ctype_secondary = 'html'; $part->body = file_get_contents(TESTS_DIR . $body); $part->replaces = array(); return $part; } /** * Test sanitization of a "normal" html message */ function test_html() { $part = $this->get_html_part('src/htmlbody.txt'); $part->replaces = array('ex1.jpg' => 'part_1.2.jpg', 'ex2.jpg' => 'part_1.2.jpg'); // render HTML in normal mode $html = rcmail_html4inline(rcmail_print_body($part, array('safe' => false)), 'foo'); $this->assertPattern('/src="'.$part->replaces['ex1.jpg'].'"/', $html, "Replace reference to inline image"); $this->assertPattern('#background="./program/blocked.gif"#', $html, "Replace external background image"); $this->assertNoPattern('/ex3.jpg/', $html, "No references to external images"); $this->assertNoPattern('/<meta [^>]+>/', $html, "No meta tags allowed"); //$this->assertNoPattern('/<style [^>]+>/', $html, "No style tags allowed"); $this->assertNoPattern('/<form [^>]+>/', $html, "No form tags allowed"); $this->assertPattern('/Subscription form/', $html, "Include <form> contents"); $this->assertPattern('/<!-- input ignored -->/', $html, "No input elements allowed"); $this->assertPattern('/<!-- link ignored -->/', $html, "No external links allowed"); $this->assertPattern('/<a[^>]+ target="_blank">/', $html, "Set target to _blank"); $this->assertTrue($GLOBALS['REMOTE_OBJECTS'], "Remote object detected"); // render HTML in safe mode $html2 = rcmail_html4inline(rcmail_print_body($part, array('safe' => true)), 'foo'); $this->assertPattern('/<style [^>]+>/', $html2, "Allow styles in safe mode"); $this->assertPattern('#src="http://evilsite.net/mailings/ex3.jpg"#', $html2, "Allow external images in HTML (safe mode)"); $this->assertPattern("#url\('?http://evilsite.net/newsletter/image/bg/bg-64.jpg'?\)#", $html2, "Allow external images in CSS (safe mode)"); $css = '<link rel="stylesheet" .+_u=tmp-[a-z0-9]+\.css.+_action=modcss'; $this->assertPattern('#'.$css.'#Ui', $html2, "Filter (anonymized) external styleseehts with utils/modcss.inc"); } /** * Test the elimination of some trivial XSS vulnerabilities */ function test_html_xss() { $part = $this->get_html_part('src/htmlxss.txt'); $washed = rcmail_print_body($part, array('safe' => true)); $this->assertNoPattern('/src="skins/', $washed, "Remove local references"); $this->assertNoPattern('/\son[a-z]+/', $washed, "Remove on* attributes"); $html = rcmail_html4inline($washed, 'foo'); $this->assertNoPattern('/onclick="return rcmail.command(\'compose\',\'xss@somehost.net\',this)"/', $html, "Clean mailto links"); $this->assertNoPattern('/alert/', $html, "Remove alerts"); } /** * Test HTML sanitization to fix the CSS Expression Input Validation Vulnerability * reported at http://www.securityfocus.com/bid/26800/ */ function test_html_xss2() { $part = $this->get_html_part('src/BID-26800.txt'); $washed = rcmail_print_body($part, array('safe' => true)); $this->assertNoPattern('/alert|expression|javascript|xss/', $washed, "Remove evil style blocks"); $this->assertNoPattern('/font-style:italic/', $washed, "Allow valid styles"); } /** * Test links pattern replacements in plaintext messages */ function test_plaintext() { $part = new rcube_message_part; $part->ctype_primary = 'text'; $part->ctype_secondary = 'plain'; $part->body = quoted_printable_decode(file_get_contents(TESTS_DIR . 'src/plainbody.txt')); $html = rcmail_print_body($part, array('safe' => true)); $this->assertPattern('/<a href="mailto:nobody@roundcube.net" onclick="return rcmail.command\(\'compose\',\'nobody@roundcube.net\',this\)">nobody@roundcube.net<\/a>/', $html, "Mailto links with onclick"); $this->assertPattern('#<a href="http://www.apple.com/legal/privacy" target="_blank">http://www.apple.com/legal/privacy</a>#', $html, "Links with target=_blank"); $this->assertPattern('#\\[<a href="http://example.com/\\?tx\\[a\\]=5" target="_blank">http://example.com/\\?tx\\[a\\]=5</a>\\]#', $html, "Links with square brackets"); } /** * Test mailto links in html messages */ function test_mailto() { $part = $this->get_html_part('src/mailto.txt'); // render HTML in normal mode $html = rcmail_html4inline(rcmail_print_body($part, array('safe' => false)), 'foo'); $mailto = '<a href="mailto:me@me.com?subject=this is the subject&body=this is the body"' .' onclick="return rcmail.command(\'compose\',\'me@me.com?subject=this is the subject&body=this is the body\',this)">e-mail</a>'; $this->assertPattern('|'.preg_quote($mailto, '|').'|', $html, "Extended mailto links"); } /** * Test the elimination of HTML comments */ function test_html_comments() { $part = $this->get_html_part('src/htmlcom.txt'); $washed = rcmail_print_body($part, array('safe' => true)); // #1487759 $this->assertPattern('|<p>test1</p>|', $washed, "Buggy HTML comments"); // but conditional comments (<!--[if ...) should be removed $this->assertNoPattern('|<p>test2</p>|', $washed, "Conditional HTML comments"); } /** * Test URI base resolving in HTML messages */ function test_resolve_base() { $html = file_get_contents(TESTS_DIR . 'src/htmlbase.txt'); $html = rcmail_resolve_base($html); $this->assertPattern('|src="http://alec\.pl/dir/img1\.gif"|', $html, "URI base resolving [1]"); $this->assertPattern('|src="http://alec\.pl/dir/img2\.gif"|', $html, "URI base resolving [2]"); $this->assertPattern('|src="http://alec\.pl/img3\.gif"|', $html, "URI base resolving [3]"); } }