1 files changed, 39 insertions, 0 deletions
diff --git a/tests/ModCss.php b/tests/ModCss.php
new file mode 100644
index 000000000..38cf84c9d
--- /dev/null
+++ b/tests/ModCss.php
@@ -0,0 +1,39 @@
+<?php
+
+/**
+ * Test class to test rcmail_mod_css_styles and XSS vulnerabilites
+ *
+ * @package Tests
+ */
+class ModCss extends PHPUnit_Framework_TestCase
+{
+
+    function test_modcss()
+    {
+        $css = file_get_contents(TESTS_DIR . 'src/valid.css');
+        $mod = rcmail_mod_css_styles($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");
+    }
+
+    function test_xss()
+    {
+        $mod = rcmail_mod_css_styles("body.main2cols { background-image: url('../images/leftcol.png'); }", 'rcmbody');
+        $this->assertEquals("/* evil! */", $mod, "No url() values allowed");
+
+        $mod = rcmail_mod_css_styles("@import url('http://localhost/somestuff/css/master.css');", 'rcmbody');
+        $this->assertEquals("/* evil! */", $mod, "No import statements");
+
+        $mod = rcmail_mod_css_styles("left:expression(document.body.offsetWidth-20)", 'rcmbody');
+        $this->assertEquals("/* evil! */", $mod, "No expression properties");
+
+        $mod = rcmail_mod_css_styles("left:exp/*  */ression( alert(&#039;xss3&#039;) )", 'rcmbody');
+        $this->assertEquals("/* evil! */", $mod, "Don't allow encoding quirks");
+
+        $mod = rcmail_mod_css_styles("background:\\0075\\0072\\006c( javascript:alert(&#039;xss&#039;) )", 'rcmbody');
+        $this->assertEquals("/* evil! */", $mod, "Don't allow encoding quirks (2)");
+    }
+}