90 lines
3.3 KiB
C#
90 lines
3.3 KiB
C#
//
|
|
// FormUrlEncodedContent.cs
|
|
//
|
|
// Authors:
|
|
// Marek Safar <marek.safar@gmail.com>
|
|
//
|
|
// Copyright (C) 2012 Xamarin Inc (http://www.xamarin.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.Collections.Generic;
|
|
using System.Net.Http.Headers;
|
|
using System.Text;
|
|
|
|
namespace System.Net.Http
|
|
{
|
|
public class FormUrlEncodedContent : ByteArrayContent
|
|
{
|
|
public FormUrlEncodedContent (IEnumerable<KeyValuePair<string, string>> nameValueCollection)
|
|
: base (EncodeContent (nameValueCollection))
|
|
{
|
|
Headers.ContentType = new MediaTypeHeaderValue ("application/x-www-form-urlencoded");
|
|
}
|
|
|
|
static byte[] EncodeContent (IEnumerable<KeyValuePair<string, string>> nameValueCollection)
|
|
{
|
|
if (nameValueCollection == null)
|
|
throw new ArgumentNullException ("nameValueCollection");
|
|
|
|
//
|
|
// Serialization as application/x-www-form-urlencoded
|
|
//
|
|
// Element nodes selected for inclusion are encoded as EltName=value{sep}, where = is a literal
|
|
// character, {sep} is the separator character from the separator attribute on submission,
|
|
// EltName represents the element local name, and value represents the contents of the text node.
|
|
//
|
|
// The encoding of EltName and value are as follows: space characters are replaced by +, and then
|
|
// non-ASCII and reserved characters (as defined by [RFC 2396] as amended by subsequent documents
|
|
// in the IETF track) are escaped by replacing the character with one or more octets of the UTF-8
|
|
// representation of the character, with each octet in turn replaced by %HH, where HH represents
|
|
// the uppercase hexadecimal notation for the octet value and % is a literal character. Line breaks
|
|
// are represented as "CR LF" pairs (i.e., %0D%0A).
|
|
//
|
|
var sb = new List<byte> ();
|
|
foreach (var item in nameValueCollection) {
|
|
if (sb.Count != 0)
|
|
sb.Add ((byte) '&');
|
|
|
|
var data = SerializeValue (item.Key);
|
|
if (data != null)
|
|
sb.AddRange (data);
|
|
sb.Add ((byte) '=');
|
|
|
|
data = SerializeValue (item.Value);
|
|
if (data != null)
|
|
sb.AddRange (data);
|
|
}
|
|
|
|
return sb.ToArray ();
|
|
}
|
|
|
|
static byte[] SerializeValue (string value)
|
|
{
|
|
if (value == null)
|
|
return null;
|
|
|
|
value = Uri.EscapeDataString (value).Replace ("%20", "+");
|
|
return Encoding.ASCII.GetBytes (value);
|
|
}
|
|
}
|
|
}
|