Files
LuaCsForBarotraumaEP/Barotrauma/BarotraumaClient/ClientSource/Utils/HttpUtility.cs
2020-06-04 16:41:07 +03:00

774 lines
21 KiB
C#

//
// System.Web.HttpUtility
//
// Authors:
// Patrik Torstensson (Patrik.Torstensson@labs2.com)
// Wictor Wilén (decode/encode functions) (wictor@ibizkit.se)
// Tim Coleman (tim@timcoleman.com)
// Gonzalo Paniagua Javier (gonzalo@ximian.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.
//
using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Globalization;
using Barotrauma.IO;
using System.Security.Permissions;
using System.Text;
namespace RestSharp.Contrib
{
//#if !MONOTOUCH
// // CAS - no InheritanceDemand here as the class is sealed
// [AspNetHostingPermission(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
//#endif
public sealed class HttpUtility
{
sealed class HttpQSCollection : NameValueCollection
{
public override string ToString()
{
int count = Count;
if (count == 0)
return "";
StringBuilder sb = new StringBuilder();
string[] keys = AllKeys;
for (int i = 0; i < count; i++)
{
sb.AppendFormat("{0}={1}&", keys[i], this[keys[i]]);
}
if (sb.Length > 0)
sb.Length--;
return sb.ToString();
}
}
#region Constructors
public HttpUtility()
{
}
#endregion // Constructors
#region Methods
/*
public static void HtmlAttributeEncode(string s, TextWriter output)
{
if (output == null)
{
#if NET_4_0
throw new ArgumentNullException ("output");
#else
throw new NullReferenceException(".NET emulation");
#endif
}
#if NET_4_0
HttpEncoder.Current.HtmlAttributeEncode (s, output);
#else
output.Write(HttpEncoder.HtmlAttributeEncode(s));
#endif
}
*/
public static string HtmlAttributeEncode(string s)
{
#if NET_4_0
if (s == null)
return null;
using (var sw = new StringWriter ()) {
HttpEncoder.Current.HtmlAttributeEncode (s, sw);
return sw.ToString ();
}
#else
return HttpEncoder.HtmlAttributeEncode(s);
#endif
}
public static string UrlDecode(string str)
{
return UrlDecode(str, Encoding.UTF8);
}
static char[] GetChars(System.IO.MemoryStream b, Encoding e)
{
return e.GetChars(b.GetBuffer(), 0, (int)b.Length);
}
static void WriteCharBytes(IList buf, char ch, Encoding e)
{
if (ch > 255)
{
foreach (byte b in e.GetBytes(new char[] { ch }))
buf.Add(b);
}
else
buf.Add((byte)ch);
}
public static string UrlDecode(string s, Encoding e)
{
if (null == s)
return null;
if (s.IndexOf('%') == -1 && s.IndexOf('+') == -1)
return s;
if (e == null)
e = Encoding.UTF8;
long len = s.Length;
var bytes = new List<byte>();
int xchar;
char ch;
for (int i = 0; i < len; i++)
{
ch = s[i];
if (ch == '%' && i + 2 < len && s[i + 1] != '%')
{
if (s[i + 1] == 'u' && i + 5 < len)
{
// unicode hex sequence
xchar = GetChar(s, i + 2, 4);
if (xchar != -1)
{
WriteCharBytes(bytes, (char)xchar, e);
i += 5;
}
else
WriteCharBytes(bytes, '%', e);
}
else if ((xchar = GetChar(s, i + 1, 2)) != -1)
{
WriteCharBytes(bytes, (char)xchar, e);
i += 2;
}
else
{
WriteCharBytes(bytes, '%', e);
}
continue;
}
if (ch == '+')
WriteCharBytes(bytes, ' ', e);
else
WriteCharBytes(bytes, ch, e);
}
byte[] buf = bytes.ToArray();
bytes = null;
return e.GetString(buf);
}
public static string UrlDecode(byte[] bytes, Encoding e)
{
if (bytes == null)
return null;
return UrlDecode(bytes, 0, bytes.Length, e);
}
static int GetInt(byte b)
{
char c = (char)b;
if (c >= '0' && c <= '9')
return c - '0';
if (c >= 'a' && c <= 'f')
return c - 'a' + 10;
if (c >= 'A' && c <= 'F')
return c - 'A' + 10;
return -1;
}
static int GetChar(byte[] bytes, int offset, int length)
{
int value = 0;
int end = length + offset;
for (int i = offset; i < end; i++)
{
int current = GetInt(bytes[i]);
if (current == -1)
return -1;
value = (value << 4) + current;
}
return value;
}
static int GetChar(string str, int offset, int length)
{
int val = 0;
int end = length + offset;
for (int i = offset; i < end; i++)
{
char c = str[i];
if (c > 127)
return -1;
int current = GetInt((byte)c);
if (current == -1)
return -1;
val = (val << 4) + current;
}
return val;
}
public static string UrlDecode(byte[] bytes, int offset, int count, Encoding e)
{
if (bytes == null)
return null;
if (count == 0)
return String.Empty;
if (bytes == null)
throw new ArgumentNullException("bytes");
if (offset < 0 || offset > bytes.Length)
throw new ArgumentOutOfRangeException("offset");
if (count < 0 || offset + count > bytes.Length)
throw new ArgumentOutOfRangeException("count");
StringBuilder output = new StringBuilder();
System.IO.MemoryStream acc = new System.IO.MemoryStream();
int end = count + offset;
int xchar;
for (int i = offset; i < end; i++)
{
if (bytes[i] == '%' && i + 2 < count && bytes[i + 1] != '%')
{
if (bytes[i + 1] == (byte)'u' && i + 5 < end)
{
if (acc.Length > 0)
{
output.Append(GetChars(acc, e));
acc.SetLength(0);
}
xchar = GetChar(bytes, i + 2, 4);
if (xchar != -1)
{
output.Append((char)xchar);
i += 5;
continue;
}
}
else if ((xchar = GetChar(bytes, i + 1, 2)) != -1)
{
acc.WriteByte((byte)xchar);
i += 2;
continue;
}
}
if (acc.Length > 0)
{
output.Append(GetChars(acc, e));
acc.SetLength(0);
}
if (bytes[i] == '+')
{
output.Append(' ');
}
else
{
output.Append((char)bytes[i]);
}
}
if (acc.Length > 0)
{
output.Append(GetChars(acc, e));
}
acc = null;
return output.ToString();
}
public static byte[] UrlDecodeToBytes(byte[] bytes)
{
if (bytes == null)
return null;
return UrlDecodeToBytes(bytes, 0, bytes.Length);
}
public static byte[] UrlDecodeToBytes(string str)
{
return UrlDecodeToBytes(str, Encoding.UTF8);
}
public static byte[] UrlDecodeToBytes(string str, Encoding e)
{
if (str == null)
return null;
if (e == null)
throw new ArgumentNullException("e");
return UrlDecodeToBytes(e.GetBytes(str));
}
public static byte[] UrlDecodeToBytes(byte[] bytes, int offset, int count)
{
if (bytes == null)
return null;
if (count == 0)
return new byte[0];
int len = bytes.Length;
if (offset < 0 || offset >= len)
throw new ArgumentOutOfRangeException("offset");
if (count < 0 || offset > len - count)
throw new ArgumentOutOfRangeException("count");
System.IO.MemoryStream result = new System.IO.MemoryStream();
int end = offset + count;
for (int i = offset; i < end; i++)
{
char c = (char)bytes[i];
if (c == '+')
{
c = ' ';
}
else if (c == '%' && i < end - 2)
{
int xchar = GetChar(bytes, i + 1, 2);
if (xchar != -1)
{
c = (char)xchar;
i += 2;
}
}
result.WriteByte((byte)c);
}
return result.ToArray();
}
public static string UrlEncode(string str)
{
return UrlEncode(str, Encoding.UTF8);
}
public static string UrlEncode(string s, Encoding Enc)
{
if (s == null)
return null;
if (s == String.Empty)
return String.Empty;
bool needEncode = false;
int len = s.Length;
for (int i = 0; i < len; i++)
{
char c = s[i];
if ((c < '0') || (c < 'A' && c > '9') || (c > 'Z' && c < 'a') || (c > 'z'))
{
if (HttpEncoder.NotEncoded(c))
continue;
needEncode = true;
break;
}
}
if (!needEncode)
return s;
// avoided GetByteCount call
byte[] bytes = new byte[Enc.GetMaxByteCount(s.Length)];
int realLen = Enc.GetBytes(s, 0, s.Length, bytes, 0);
return Encoding.ASCII.GetString(UrlEncodeToBytes(bytes, 0, realLen));
}
public static string UrlEncode(byte[] bytes)
{
if (bytes == null)
return null;
if (bytes.Length == 0)
return String.Empty;
return Encoding.ASCII.GetString(UrlEncodeToBytes(bytes, 0, bytes.Length));
}
public static string UrlEncode(byte[] bytes, int offset, int count)
{
if (bytes == null)
return null;
if (bytes.Length == 0)
return String.Empty;
return Encoding.ASCII.GetString(UrlEncodeToBytes(bytes, offset, count));
}
public static byte[] UrlEncodeToBytes(string str)
{
return UrlEncodeToBytes(str, Encoding.UTF8);
}
public static byte[] UrlEncodeToBytes(string str, Encoding e)
{
if (str == null)
return null;
if (str.Length == 0)
return new byte[0];
byte[] bytes = e.GetBytes(str);
return UrlEncodeToBytes(bytes, 0, bytes.Length);
}
public static byte[] UrlEncodeToBytes(byte[] bytes)
{
if (bytes == null)
return null;
if (bytes.Length == 0)
return new byte[0];
return UrlEncodeToBytes(bytes, 0, bytes.Length);
}
public static byte[] UrlEncodeToBytes(byte[] bytes, int offset, int count)
{
if (bytes == null)
return null;
#if NET_4_0
return HttpEncoder.Current.UrlEncode (bytes, offset, count);
#else
return HttpEncoder.UrlEncodeToBytes(bytes, offset, count);
#endif
}
public static string UrlEncodeUnicode(string str)
{
if (str == null)
return null;
return Encoding.ASCII.GetString(UrlEncodeUnicodeToBytes(str));
}
public static byte[] UrlEncodeUnicodeToBytes(string str)
{
if (str == null)
return null;
if (str.Length == 0)
return new byte[0];
System.IO.MemoryStream result = new System.IO.MemoryStream(str.Length);
foreach (char c in str)
{
HttpEncoder.UrlEncodeChar(c, result, true);
}
return result.ToArray();
}
/// <summary>
/// Decodes an HTML-encoded string and returns the decoded string.
/// </summary>
/// <param name="s">The HTML string to decode. </param>
/// <returns>The decoded text.</returns>
public static string HtmlDecode(string s)
{
#if NET_4_0
if (s == null)
return null;
using (var sw = new StringWriter ()) {
HttpEncoder.Current.HtmlDecode (s, sw);
return sw.ToString ();
}
#else
return HttpEncoder.HtmlDecode(s);
#endif
}
/// <summary>
/// Decodes an HTML-encoded string and sends the resulting output to a TextWriter output stream.
/// </summary>
/// <param name="s">The HTML string to decode</param>
/// <param name="output">The TextWriter output stream containing the decoded string. </param>
/*
public static void HtmlDecode(string s, TextWriter output)
{
if (output == null)
{
#if NET_4_0
throw new ArgumentNullException ("output");
#else
throw new NullReferenceException(".NET emulation");
#endif
}
if (!String.IsNullOrEmpty(s))
{
#if NET_4_0
HttpEncoder.Current.HtmlDecode (s, output);
#else
output.Write(HttpEncoder.HtmlDecode(s));
#endif
}
}
*/
public static string HtmlEncode(string s)
{
#if NET_4_0
if (s == null)
return null;
using (var sw = new StringWriter ()) {
HttpEncoder.Current.HtmlEncode (s, sw);
return sw.ToString ();
}
#else
return HttpEncoder.HtmlEncode(s);
#endif
}
/// <summary>
/// HTML-encodes a string and sends the resulting output to a TextWriter output stream.
/// </summary>
/// <param name="s">The string to encode. </param>
/// <param name="output">The TextWriter output stream containing the encoded string. </param>
/*
public static void HtmlEncode(string s, TextWriter output)
{
if (output == null)
{
#if NET_4_0
throw new ArgumentNullException ("output");
#else
throw new NullReferenceException(".NET emulation");
#endif
}
if (!String.IsNullOrEmpty(s))
{
#if NET_4_0
HttpEncoder.Current.HtmlEncode (s, output);
#else
output.Write(HttpEncoder.HtmlEncode(s));
#endif
}
}
*/
#if NET_4_0
public static string HtmlEncode (object value)
{
if (value == null)
return null;
IHtmlString htmlString = value as IHtmlString;
if (htmlString != null)
return htmlString.ToHtmlString ();
return HtmlEncode (value.ToString ());
}
public static string JavaScriptStringEncode (string value)
{
return JavaScriptStringEncode (value, false);
}
public static string JavaScriptStringEncode (string value, bool addDoubleQuotes)
{
if (String.IsNullOrEmpty (value))
return addDoubleQuotes ? "\"\"" : String.Empty;
int len = value.Length;
bool needEncode = false;
char c;
for (int i = 0; i < len; i++) {
c = value [i];
if (c >= 0 && c <= 31 || c == 34 || c == 39 || c == 60 || c == 62 || c == 92) {
needEncode = true;
break;
}
}
if (!needEncode)
return addDoubleQuotes ? "\"" + value + "\"" : value;
var sb = new StringBuilder ();
if (addDoubleQuotes)
sb.Append ('"');
for (int i = 0; i < len; i++) {
c = value [i];
if (c >= 0 && c <= 7 || c == 11 || c >= 14 && c <= 31 || c == 39 || c == 60 || c == 62)
sb.AppendFormat ("\\u{0:x4}", (int)c);
else switch ((int)c) {
case 8:
sb.Append ("\\b");
break;
case 9:
sb.Append ("\\t");
break;
case 10:
sb.Append ("\\n");
break;
case 12:
sb.Append ("\\f");
break;
case 13:
sb.Append ("\\r");
break;
case 34:
sb.Append ("\\\"");
break;
case 92:
sb.Append ("\\\\");
break;
default:
sb.Append (c);
break;
}
}
if (addDoubleQuotes)
sb.Append ('"');
return sb.ToString ();
}
#endif
public static string UrlPathEncode(string s)
{
#if NET_4_0
return HttpEncoder.Current.UrlPathEncode (s);
#else
return HttpEncoder.UrlPathEncode(s);
#endif
}
public static NameValueCollection ParseQueryString(string query)
{
return ParseQueryString(query, Encoding.UTF8);
}
public static NameValueCollection ParseQueryString(string query, Encoding encoding)
{
if (query == null)
throw new ArgumentNullException("query");
if (encoding == null)
throw new ArgumentNullException("encoding");
if (query.Length == 0 || (query.Length == 1 && query[0] == '?'))
return new NameValueCollection();
if (query[0] == '?')
query = query.Substring(1);
NameValueCollection result = new HttpQSCollection();
ParseQueryString(query, encoding, result);
return result;
}
internal static void ParseQueryString(string query, Encoding encoding, NameValueCollection result)
{
if (query.Length == 0)
return;
string decoded = HtmlDecode(query);
int decodedLength = decoded.Length;
int namePos = 0;
bool first = true;
while (namePos <= decodedLength)
{
int valuePos = -1, valueEnd = -1;
for (int q = namePos; q < decodedLength; q++)
{
if (valuePos == -1 && decoded[q] == '=')
{
valuePos = q + 1;
}
else if (decoded[q] == '&')
{
valueEnd = q;
break;
}
}
if (first)
{
first = false;
if (decoded[namePos] == '?')
namePos++;
}
string name, value;
if (valuePos == -1)
{
name = null;
valuePos = namePos;
}
else
{
name = UrlDecode(decoded.Substring(namePos, valuePos - namePos - 1), encoding);
}
if (valueEnd < 0)
{
namePos = -1;
valueEnd = decoded.Length;
}
else
{
namePos = valueEnd + 1;
}
value = UrlDecode(decoded.Substring(valuePos, valueEnd - valuePos), encoding);
result.Add(name, value);
if (namePos == -1)
break;
}
}
#endregion // Methods
}
}