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WebUtilityTest.cs
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/
WebUtilityTest.cs
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//
// System.Net.WebUtilityTest.cs
//
// copied and edited from System.Web.HttpUtilityTest.cs
//
// Author:
// Sebastien Pouliot <sebastien@ximian.com>
// Mike Kestner <mkestner@novell.com>
//
// Copyright (C) 2005, 2010 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#if NET_4_0 && !MOBILE
using System;
using System.Text;
using System.Net;
using System.IO;
using System.Collections.Specialized;
using NUnit.Framework;
namespace MonoTests.System.Net {
[TestFixture]
public class WebUtilityTest {
[Test]
public void HtmlEncode_LtGt ()
{
Assert.AreEqual ("<script>", WebUtility.HtmlEncode ("<script>"));
}
// Notes:
// * this is to avoid a regression that would cause Mono to
// fail item #3 of the XSS vulnerabilities listed at:
// http://it-project.ru/andir/docs/aspxvuln/aspxvuln.en.xml
// we didn't fall the first time so let's ensure we never will
// * The author notes that Microsoft has decided not to fix
// this issue (hence the NotDotNet category).
[Test]
[Category ("NotDotNet")]
#if TARGET_JVM
[Ignore ("TD #6954")]
#endif
public void HtmlEncode_XSS ()
{
string problem = "\xff1cscript\xff1e"; // unicode looks alike <script>
byte[] utf8data = Encoding.UTF8.GetBytes (problem);
Encoding win1251 = Encoding.GetEncoding ("windows-1251");
byte[] windata = Encoding.Convert (Encoding.UTF8, win1251, utf8data);
// now it's a real problem
Assert.AreEqual ("<script>", Encoding.ASCII.GetString (windata), "<script>");
string encoded = WebUtility.HtmlEncode (problem);
Assert.AreEqual ("＜script＞", encoded, "＜script＞");
utf8data = Encoding.UTF8.GetBytes (encoded);
windata = Encoding.Convert (Encoding.UTF8, win1251, utf8data);
Assert.AreEqual ("＜script＞", Encoding.ASCII.GetString (windata), "ok");
}
[Test]
#if !TARGET_JVM
[Category ("NotWorking")]
#endif
public void HtmlEncode () {
for (char c = char.MinValue; c < char.MaxValue; c++) {
String exp = HtmlEncode (c.ToString ());
String act = WebUtility.HtmlEncode (c.ToString ());
Assert.AreEqual (exp, act, "HtmlEncode " + c.ToString () + " [" + (int) c + "]");
}
}
string HtmlEncode (string s) {
if (s == null)
return null;
bool needEncode = false;
for (int i = 0; i < s.Length; i++) {
char c = s [i];
if (c == '&' || c == '"' || c == '<' || c == '>' || c > 159) {
needEncode = true;
break;
}
}
if (!needEncode)
return s;
StringBuilder output = new StringBuilder ();
int len = s.Length;
for (int i = 0; i < len; i++)
switch (s [i]) {
case '&':
output.Append ("&");
break;
case '>':
output.Append (">");
break;
case '<':
output.Append ("<");
break;
case '"':
output.Append (""");
break;
default:
// MS starts encoding with &# from 160 and stops at 255.
// We don't do that. One reason is the 65308/65310 unicode
// characters that look like '<' and '>'.
if (s [i] > 159 && s [i] < 256) {
output.Append ("&#");
output.Append (((int) s [i]).ToString ());
output.Append (";");
}
else {
output.Append (s [i]);
}
break;
}
return output.ToString ();
}
[Test]
public void EscapedCharacters ()
{
for (int i = 0; i < 256; i++) {
string str = new string ((char) i, 1);
string encoded = WebUtility.HtmlEncode (str);
if ((i > 159 && i < 256 ) || i == '&' || i == '<' || i == '>' || i == '"') {
if (encoded [0] != '&' || encoded [encoded.Length - 1] != ';')
Assert.Fail ("Failed for i = " + i);
} else if (encoded.Length != 1) {
Assert.Fail ("Wrong length for i = " + i);
}
}
}
[Test]
public void Decode1 ()
{
Assert.AreEqual ("\xE9", WebUtility.HtmlDecode ("é"));
}
[Test]
public void RoundTrip ()
{
string x = "<html>& hello+= world!";
string y = WebUtility.HtmlEncode (x);
string z = WebUtility.HtmlDecode (y);
Assert.AreEqual (x, z);
}
[Test]
public void LooksLikeEntity ()
{
string str = "<%# \"hola\" + \"/somepage.aspx?ItemID=\" + DataBinder.Eval(Container.DataItem,\"Country\")" +
" + \"&mid=\" + ModuleID + \"&pageindex=\" + Request.Params.Get(\"pageindex\") %>";
Assert.AreEqual (str, WebUtility.HtmlDecode (str));
}
[Test]
public void EntityEncoding ()
{
var expected = "\u00A0\u00A1\u00A2\u00A3\u00A4\u00A5\u00A6\u00A7\u00A8\u00A9\u00AA\u00AB\u00AC\u00AD\u00AE\u00AF\u00B0\u00B1\u00B2\u00B3\u00B4\u00B5\u00B6\u00B7\u00B8\u00B9\u00BA\u00BB\u00BC\u00BD\u00BE\u00BF\u00C0\u00C1\u00C2\u00C3\u00C4\u00C5\u00C6\u00C7\u00C8\u00C9\u00CA\u00CB\u00CC\u00CD\u00CE\u00CF\u00D0\u00D1\u00D2\u00D3\u00D4\u00D5\u00D6\u00D7\u00D8\u00D9\u00DA\u00DB\u00DC\u00DD\u00DE\u00DF\u00E0\u00E1\u00E2\u00E3\u00E4\u00E5\u00E6\u00E7\u00E8\u00E9\u00EA\u00EB\u00EC\u00ED\u00EE\u00EF\u00F0\u00F1\u00F2\u00F3\u00F4\u00F5\u00F6\u00F7\u00F8\u00F9\u00FA\u00FB\u00FC\u00FD\u00FE\u00FF\u0192\u0391\u0392\u0393\u0394\u0395\u0396\u0397\u0398\u0399\u039A\u039B\u039C\u039D\u039E\u039F\u03A0\u03A1\u03A3\u03A4\u03A5\u03A6\u03A7\u03A8\u03A9\u03B1\u03B2\u03B3\u03B4\u03B5\u03B6\u03B7\u03B8\u03B9\u03BA\u03BB\u03BC\u03BD\u03BE\u03BF\u03C0\u03C1\u03C2\u03C3\u03C4\u03C5\u03C6\u03C7\u03C8\u03C9\u03D1\u03D2\u03D6\u2022\u2026\u2032\u2033\u203E\u2044\u2118\u2111\u211C\u2122\u2135\u2190\u2191\u2192\u2193\u2194\u21B5\u21D0\u21D1\u21D2\u21D3\u21D4\u2200\u2202\u2203\u2205\u2207\u2208\u2209\u220B\u220F\u2211\u2212\u2217\u221A\u221D\u221E\u2220\u2227\u2228\u2229\u222A\u222B\u2234\u223C\u2245\u2248\u2260\u2261\u2264\u2265\u2282\u2283\u2284\u2286\u2287\u2295\u2297\u22A5\u22C5\u2308\u2309\u230A\u230B\u2329\u232A\u25CA\u2660\u2663\u2665\u2666\u0022\u0026\u003C\u003E\u0152\u0153\u0160\u0161\u0178\u02C6\u02DC\u2002\u2003\u2009\u200C\u200D\u200E\u200F\u2013\u2014\u2018\u2019\u201A\u201C\u201D\u201E\u2020\u2021\u2030\u2039\u203A\u20AC";
var htmlDecoded = WebUtility.HtmlDecode (" ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿƒΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩαβγδεζηθικλμνξοπρςστυφχψωϑϒϖ•…′″‾⁄℘ℑℜ™ℵ←↑→↓↔↵⇐⇑⇒⇓⇔∀∂∃∅∇∈∉∋∏∑−∗√∝∞∠∧∨∩∪∫∴∼≅≈≠≡≤≥⊂⊃⊄⊆⊇⊕⊗⊥⋅⌈⌉⌊⌋⟨⟩◊♠♣♥♦"&<>ŒœŠšŸˆ˜   ‌‍‎‏–—‘’‚“”„†‡‰‹›€");
Assert.AreEqual (expected, htmlDecoded);
}
}
}
#endif