From bd0551b22076b82a6d49e9f7a2b2e0c90a1b2326 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Fri, 05 Feb 2016 07:25:27 -0500
Subject: [PATCH] Secure also downloads of addressbook exports, managesieve script exports and Enigma keys exports

---
 tests/Framework/Washtml.php |  178 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 176 insertions(+), 2 deletions(-)

diff --git a/tests/Framework/Washtml.php b/tests/Framework/Washtml.php
index 6f4aa97..5903d0c 100644
--- a/tests/Framework/Washtml.php
+++ b/tests/Framework/Washtml.php
@@ -18,7 +18,6 @@
             .'<a href="vbscript:alert(document.cookie)">Internet Explorer</a></p>';
 
         $washer = new rcube_washtml;
-
         $washed = $washer->wash($html);
 
         $this->assertNotRegExp('/data:text/', $washed, "Remove data:text/html links");
@@ -33,10 +32,185 @@
         $html = "<p><a href=\"\nhttp://test.com\n\">Firefox</a>";
 
         $washer = new rcube_washtml;
-
         $washed = $washer->wash($html);
 
         $this->assertRegExp('|href="http://test.com">|', $washed, "Link href with newlines (#1488940)");
     }
 
+    /**
+     * Test handling HTML comments
+     */
+    function test_comments()
+    {
+        $washer = new rcube_washtml;
+
+        $html   = "<!--[if gte mso 10]><p>p1</p><!--><p>p2</p>";
+        $washed = $washer->wash($html);
+
+        $this->assertEquals('<!-- html ignored --><!-- body ignored --><p>p2</p>', $washed, "HTML conditional comments (#1489004)");
+
+        $html   = "<!--TestCommentInvalid><p>test</p>";
+        $washed = $washer->wash($html);
+
+        $this->assertEquals('<!-- html ignored --><!-- body ignored --><p>test</p>', $washed, "HTML invalid comments (#1487759)");
+
+        $html   = "<p>para1</p><!-- comment --><p>para2</p>";
+        $washed = $washer->wash($html);
+
+        $this->assertEquals('<!-- html ignored --><!-- body ignored --><p>para1</p><p>para2</p>', $washed, "HTML comments - simple comment");
+
+        $html   = "<p>para1</p><!-- <hr> comment --><p>para2</p>";
+        $washed = $washer->wash($html);
+
+        $this->assertEquals('<!-- html ignored --><!-- body ignored --><p>para1</p><p>para2</p>', $washed, "HTML comments - tags inside (#1489904)");
+    }
+
+    /**
+     * Test fixing of invalid self-closing elements (#1489137)
+     */
+    function test_self_closing()
+    {
+        $html = "<textarea>test";
+
+        $washer = new rcube_washtml;
+        $washed = $washer->wash($html);
+
+        $this->assertRegExp('|<textarea>test</textarea>|', $washed, "Self-closing textarea (#1489137)");
+    }
+
+    /**
+     * Test fixing of invalid closing tags (#1489446)
+     */
+    function test_closing_tag_attrs()
+    {
+        $html = "<a href=\"http://test.com\">test</a href>";
+
+        $washer = new rcube_washtml;
+        $washed = $washer->wash($html);
+
+        $this->assertRegExp('|</a>|', $washed, "Invalid closing tag (#1489446)");
+    }
+
+    /**
+     * Test fixing of invalid lists nesting (#1488768)
+     */
+    function test_lists()
+    {
+        $data = array(
+            array(
+                "<ol><li>First</li><li>Second</li><ul><li>First sub</li></ul><li>Third</li></ol>",
+                "<ol><li>First</li><li>Second<ul><li>First sub</li></ul></li><li>Third</li></ol>"
+            ),
+            array(
+                "<ol><li>First<ul><li>First sub</li></ul></li></ol>",
+                "<ol><li>First<ul><li>First sub</li></ul></li></ol>",
+            ),
+            array(
+                "<ol><li>First<ol><li>First sub</li></ol></li></ol>",
+                "<ol><li>First<ol><li>First sub</li></ol></li></ol>",
+            ),
+            array(
+                "<ul><li>First</li><ul><li>First sub</li><ul><li>sub sub</li></ul></ul><li></li></ul>",
+                "<ul><li>First<ul><li>First sub<ul><li>sub sub</li></ul></li></ul></li><li></li></ul>",
+            ),
+            array(
+                "<ul><li>First</li><li>second</li><ul><ul><li>sub sub</li></ul></ul></ul>",
+                "<ul><li>First</li><li>second<ul><ul><li>sub sub</li></ul></ul></li></ul>",
+            ),
+            array(
+                "<ol><ol><ol></ol></ol></ol>",
+                "<ol><ol><ol></ol></ol></ol>",
+            ),
+            array(
+                "<div><ol><ol><ol></ol></ol></ol></div>",
+                "<div><ol><ol><ol></ol></ol></ol></div>",
+            ),
+        );
+
+        foreach ($data as $element) {
+            rcube_washtml::fix_broken_lists($element[0]);
+
+            $this->assertSame($element[1], $element[0], "Broken nested lists (#1488768)");
+        }
+    }
+
+    /**
+     * Test color style handling (#1489697)
+     */
+    function test_color_style()
+    {
+        $html = "<p style=\"font-size: 10px; color: rgb(241, 245, 218)\">a</p>";
+
+        $washer = new rcube_washtml;
+        $washed = $washer->wash($html);
+
+        $this->assertRegExp('|color: rgb\(241, 245, 218\)|', $washed, "Color style (#1489697)");
+        $this->assertRegExp('|font-size: 10px|', $washed, "Font-size style");
+    }
+
+    /**
+     * Test handling of unicode chars in style (#1489777)
+     */
+    function test_style_unicode()
+    {
+        $html = "<html><meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />
+            <body><span style='font-family:\"新細明體\",\"serif\";color:red'>test</span></body></html>";
+
+        $washer = new rcube_washtml;
+        $washed = $washer->wash($html);
+
+        $this->assertRegExp('|style="font-family: \&quot;新細明體\&quot;,\&quot;serif\&quot;; color: red"|', $washed, "Unicode chars in style attribute - quoted (#1489697)");
+
+        $html = "<html><meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />
+            <body><span style='font-family:新細明體;color:red'>test</span></body></html>";
+
+        $washer = new rcube_washtml;
+        $washed = $washer->wash($html);
+
+        $this->assertRegExp('|style="font-family: 新細明體; color: red"|', $washed, "Unicode chars in style attribute (#1489697)");
+    }
+
+    /**
+     * Test style item fixes
+     */
+    function test_style_wash()
+    {
+        $html = "<p style=\"line-height: 1; height: 10\">a</p>";
+
+        $washer = new rcube_washtml;
+        $washed = $washer->wash($html);
+
+        $this->assertRegExp('|line-height: 1;|', $washed, "Untouched line-height (#1489917)");
+        $this->assertRegExp('|; height: 10px|', $washed, "Fixed height units");
+
+        $html     = "<div style=\"padding: 0px\n   20px;border:1px solid #000;\"></div>";
+        $expected = "<div style=\"padding: 0px 20px; border: 1px solid #000\"></div>";
+
+        $washer = new rcube_washtml;
+        $washed = $washer->wash($html);
+
+        $this->assertTrue(strpos($washed, $expected) !== false, "White-space and new-line characters handling");
+    }
+
+    /**
+     * Test invalid style cleanup - XSS prevention (#1490227)
+     */
+    function test_style_wash_xss()
+    {
+        $html = "<img style=aaa:'\"/onerror=alert(1)//'>";
+        $exp  = "<img style=\"aaa: '&quot;/onerror=alert(1)//'\" />";
+
+        $washer = new rcube_washtml;
+        $washed = $washer->wash($html);
+
+        $this->assertTrue(strpos($washed, $exp) !== false, "Style quotes XSS issue (#1490227)");
+
+        $html = "<img style=aaa:'&quot;/onerror=alert(1)//'>";
+        $exp  = "<img style=\"aaa: '&quot;/onerror=alert(1)//'\" />";
+
+        $washer = new rcube_washtml;
+        $washed = $washer->wash($html);
+
+        $this->assertTrue(strpos($washed, $exp) !== false, "Style quotes XSS issue (#1490227)");
+    }
 }

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