392 lines
13 KiB
C#
392 lines
13 KiB
C#
using System;
|
|
using System.Collections;
|
|
using System.Collections.Generic;
|
|
using System.Collections.Specialized;
|
|
using System.Net;
|
|
using System.Runtime.InteropServices;
|
|
using System.Runtime.Serialization;
|
|
using System.Text;
|
|
using MediaBrowser.Model.Services;
|
|
|
|
namespace SocketHttpListener.Net
|
|
{
|
|
[ComVisible(true)]
|
|
public class WebHeaderCollection : QueryParamCollection
|
|
{
|
|
[Flags]
|
|
internal enum HeaderInfo
|
|
{
|
|
Request = 1,
|
|
Response = 1 << 1,
|
|
MultiValue = 1 << 10
|
|
}
|
|
|
|
static readonly bool[] allowed_chars = {
|
|
false, false, false, false, false, false, false, false, false, false, false, false, false, false,
|
|
false, false, false, false, false, false, false, false, false, false, false, false, false, false,
|
|
false, false, false, false, false, true, false, true, true, true, true, false, false, false, true,
|
|
true, false, true, true, false, true, true, true, true, true, true, true, true, true, true, false,
|
|
false, false, false, false, false, false, true, true, true, true, true, true, true, true, true,
|
|
true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
|
|
false, false, false, true, true, true, true, true, true, true, true, true, true, true, true, true,
|
|
true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
|
|
false, true, false
|
|
};
|
|
|
|
static readonly Dictionary<string, HeaderInfo> headers;
|
|
HeaderInfo? headerRestriction;
|
|
HeaderInfo? headerConsistency;
|
|
|
|
static WebHeaderCollection()
|
|
{
|
|
headers = new Dictionary<string, HeaderInfo>(StringComparer.OrdinalIgnoreCase) {
|
|
{ "Allow", HeaderInfo.MultiValue },
|
|
{ "Accept", HeaderInfo.Request | HeaderInfo.MultiValue },
|
|
{ "Accept-Charset", HeaderInfo.MultiValue },
|
|
{ "Accept-Encoding", HeaderInfo.MultiValue },
|
|
{ "Accept-Language", HeaderInfo.MultiValue },
|
|
{ "Accept-Ranges", HeaderInfo.MultiValue },
|
|
{ "Age", HeaderInfo.Response },
|
|
{ "Authorization", HeaderInfo.MultiValue },
|
|
{ "Cache-Control", HeaderInfo.MultiValue },
|
|
{ "Cookie", HeaderInfo.MultiValue },
|
|
{ "Connection", HeaderInfo.Request | HeaderInfo.MultiValue },
|
|
{ "Content-Encoding", HeaderInfo.MultiValue },
|
|
{ "Content-Length", HeaderInfo.Request | HeaderInfo.Response },
|
|
{ "Content-Type", HeaderInfo.Request },
|
|
{ "Content-Language", HeaderInfo.MultiValue },
|
|
{ "Date", HeaderInfo.Request },
|
|
{ "Expect", HeaderInfo.Request | HeaderInfo.MultiValue},
|
|
{ "Host", HeaderInfo.Request },
|
|
{ "If-Match", HeaderInfo.MultiValue },
|
|
{ "If-Modified-Since", HeaderInfo.Request },
|
|
{ "If-None-Match", HeaderInfo.MultiValue },
|
|
{ "Keep-Alive", HeaderInfo.Response },
|
|
{ "Pragma", HeaderInfo.MultiValue },
|
|
{ "Proxy-Authenticate", HeaderInfo.MultiValue },
|
|
{ "Proxy-Authorization", HeaderInfo.MultiValue },
|
|
{ "Proxy-Connection", HeaderInfo.Request | HeaderInfo.MultiValue },
|
|
{ "Range", HeaderInfo.Request | HeaderInfo.MultiValue },
|
|
{ "Referer", HeaderInfo.Request },
|
|
{ "Set-Cookie", HeaderInfo.MultiValue },
|
|
{ "Set-Cookie2", HeaderInfo.MultiValue },
|
|
{ "Server", HeaderInfo.Response },
|
|
{ "TE", HeaderInfo.MultiValue },
|
|
{ "Trailer", HeaderInfo.MultiValue },
|
|
{ "Transfer-Encoding", HeaderInfo.Request | HeaderInfo.Response | HeaderInfo.MultiValue },
|
|
{ "Translate", HeaderInfo.Request | HeaderInfo.Response },
|
|
{ "Upgrade", HeaderInfo.MultiValue },
|
|
{ "User-Agent", HeaderInfo.Request },
|
|
{ "Vary", HeaderInfo.MultiValue },
|
|
{ "Via", HeaderInfo.MultiValue },
|
|
{ "Warning", HeaderInfo.MultiValue },
|
|
{ "WWW-Authenticate", HeaderInfo.Response | HeaderInfo. MultiValue },
|
|
{ "SecWebSocketAccept", HeaderInfo.Response },
|
|
{ "SecWebSocketExtensions", HeaderInfo.Request | HeaderInfo.Response | HeaderInfo. MultiValue },
|
|
{ "SecWebSocketKey", HeaderInfo.Request },
|
|
{ "Sec-WebSocket-Protocol", HeaderInfo.Request | HeaderInfo.Response | HeaderInfo. MultiValue },
|
|
{ "SecWebSocketVersion", HeaderInfo.Response | HeaderInfo. MultiValue }
|
|
};
|
|
}
|
|
|
|
// Methods
|
|
|
|
public void Add(string header)
|
|
{
|
|
if (header == null)
|
|
throw new ArgumentNullException("header");
|
|
int pos = header.IndexOf(':');
|
|
if (pos == -1)
|
|
throw new ArgumentException("no colon found", "header");
|
|
|
|
this.Add(header.Substring(0, pos), header.Substring(pos + 1));
|
|
}
|
|
|
|
public override void Add(string name, string value)
|
|
{
|
|
if (name == null)
|
|
throw new ArgumentNullException("name");
|
|
|
|
ThrowIfRestricted(name);
|
|
this.AddWithoutValidate(name, value);
|
|
}
|
|
|
|
protected void AddWithoutValidate(string headerName, string headerValue)
|
|
{
|
|
if (!IsHeaderName(headerName))
|
|
throw new ArgumentException("invalid header name: " + headerName, "headerName");
|
|
if (headerValue == null)
|
|
headerValue = String.Empty;
|
|
else
|
|
headerValue = headerValue.Trim();
|
|
if (!IsHeaderValue(headerValue))
|
|
throw new ArgumentException("invalid header value: " + headerValue, "headerValue");
|
|
|
|
AddValue(headerName, headerValue);
|
|
}
|
|
|
|
internal void AddValue(string headerName, string headerValue)
|
|
{
|
|
base.Add(headerName, headerValue);
|
|
}
|
|
|
|
internal string[] GetValues_internal(string header, bool split)
|
|
{
|
|
if (header == null)
|
|
throw new ArgumentNullException("header");
|
|
|
|
string[] values = base.GetValues(header);
|
|
if (values == null || values.Length == 0)
|
|
return null;
|
|
|
|
if (split && IsMultiValue(header))
|
|
{
|
|
List<string> separated = null;
|
|
foreach (var value in values)
|
|
{
|
|
if (value.IndexOf(',') < 0)
|
|
{
|
|
if (separated != null)
|
|
separated.Add(value);
|
|
|
|
continue;
|
|
}
|
|
|
|
if (separated == null)
|
|
{
|
|
separated = new List<string>(values.Length + 1);
|
|
foreach (var v in values)
|
|
{
|
|
if (v == value)
|
|
break;
|
|
|
|
separated.Add(v);
|
|
}
|
|
}
|
|
|
|
var slices = value.Split(',');
|
|
var slices_length = slices.Length;
|
|
if (value[value.Length - 1] == ',')
|
|
--slices_length;
|
|
|
|
for (int i = 0; i < slices_length; ++i)
|
|
{
|
|
separated.Add(slices[i].Trim());
|
|
}
|
|
}
|
|
|
|
if (separated != null)
|
|
return separated.ToArray();
|
|
}
|
|
|
|
return values;
|
|
}
|
|
|
|
public override string[] GetValues(string header)
|
|
{
|
|
return GetValues_internal(header, true);
|
|
}
|
|
|
|
public override string[] GetValues(int index)
|
|
{
|
|
string[] values = base.GetValues(index);
|
|
|
|
if (values == null || values.Length == 0)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
return values;
|
|
}
|
|
|
|
public static bool IsRestricted(string headerName)
|
|
{
|
|
return IsRestricted(headerName, false);
|
|
}
|
|
|
|
public static bool IsRestricted(string headerName, bool response)
|
|
{
|
|
if (headerName == null)
|
|
throw new ArgumentNullException("headerName");
|
|
|
|
if (headerName.Length == 0)
|
|
throw new ArgumentException("empty string", "headerName");
|
|
|
|
if (!IsHeaderName(headerName))
|
|
throw new ArgumentException("Invalid character in header");
|
|
|
|
HeaderInfo info;
|
|
if (!headers.TryGetValue(headerName, out info))
|
|
return false;
|
|
|
|
var flag = response ? HeaderInfo.Response : HeaderInfo.Request;
|
|
return (info & flag) != 0;
|
|
}
|
|
|
|
public override void Set(string name, string value)
|
|
{
|
|
if (name == null)
|
|
throw new ArgumentNullException("name");
|
|
if (!IsHeaderName(name))
|
|
throw new ArgumentException("invalid header name");
|
|
if (value == null)
|
|
value = String.Empty;
|
|
else
|
|
value = value.Trim();
|
|
if (!IsHeaderValue(value))
|
|
throw new ArgumentException("invalid header value");
|
|
|
|
ThrowIfRestricted(name);
|
|
base.Set(name, value);
|
|
}
|
|
|
|
internal string ToStringMultiValue()
|
|
{
|
|
StringBuilder sb = new StringBuilder();
|
|
|
|
int count = base.Count;
|
|
for (int i = 0; i < count; i++)
|
|
{
|
|
string key = GetKey(i);
|
|
if (IsMultiValue(key))
|
|
{
|
|
foreach (string v in GetValues(i))
|
|
{
|
|
sb.Append(key)
|
|
.Append(": ")
|
|
.Append(v)
|
|
.Append("\r\n");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
sb.Append(key)
|
|
.Append(": ")
|
|
.Append(Get(i))
|
|
.Append("\r\n");
|
|
}
|
|
}
|
|
return sb.Append("\r\n").ToString();
|
|
}
|
|
|
|
public override string ToString()
|
|
{
|
|
StringBuilder sb = new StringBuilder();
|
|
|
|
int count = base.Count;
|
|
for (int i = 0; i < count; i++)
|
|
sb.Append(GetKey(i))
|
|
.Append(": ")
|
|
.Append(Get(i))
|
|
.Append("\r\n");
|
|
|
|
return sb.Append("\r\n").ToString();
|
|
}
|
|
|
|
|
|
// Internal Methods
|
|
|
|
// With this we don't check for invalid characters in header. See bug #55994.
|
|
internal void SetInternal(string header)
|
|
{
|
|
int pos = header.IndexOf(':');
|
|
if (pos == -1)
|
|
throw new ArgumentException("no colon found", "header");
|
|
|
|
SetInternal(header.Substring(0, pos), header.Substring(pos + 1));
|
|
}
|
|
|
|
internal void SetInternal(string name, string value)
|
|
{
|
|
if (value == null)
|
|
value = String.Empty;
|
|
else
|
|
value = value.Trim();
|
|
if (!IsHeaderValue(value))
|
|
throw new ArgumentException("invalid header value");
|
|
|
|
if (IsMultiValue(name))
|
|
{
|
|
base.Add(name, value);
|
|
}
|
|
else
|
|
{
|
|
base.Remove(name);
|
|
base.Set(name, value);
|
|
}
|
|
}
|
|
|
|
// Private Methods
|
|
|
|
public override int Remove(string name)
|
|
{
|
|
ThrowIfRestricted(name);
|
|
return base.Remove(name);
|
|
}
|
|
|
|
protected void ThrowIfRestricted(string headerName)
|
|
{
|
|
if (!headerRestriction.HasValue)
|
|
return;
|
|
|
|
HeaderInfo info;
|
|
if (!headers.TryGetValue(headerName, out info))
|
|
return;
|
|
|
|
if ((info & headerRestriction.Value) != 0)
|
|
throw new ArgumentException("This header must be modified with the appropriate property.");
|
|
}
|
|
|
|
internal static bool IsMultiValue(string headerName)
|
|
{
|
|
if (headerName == null)
|
|
return false;
|
|
|
|
HeaderInfo info;
|
|
return headers.TryGetValue(headerName, out info) && (info & HeaderInfo.MultiValue) != 0;
|
|
}
|
|
|
|
internal static bool IsHeaderValue(string value)
|
|
{
|
|
// TEXT any 8 bit value except CTL's (0-31 and 127)
|
|
// but including \r\n space and \t
|
|
// after a newline at least one space or \t must follow
|
|
// certain header fields allow comments ()
|
|
|
|
int len = value.Length;
|
|
for (int i = 0; i < len; i++)
|
|
{
|
|
char c = value[i];
|
|
if (c == 127)
|
|
return false;
|
|
if (c < 0x20 && (c != '\r' && c != '\n' && c != '\t'))
|
|
return false;
|
|
if (c == '\n' && ++i < len)
|
|
{
|
|
c = value[i];
|
|
if (c != ' ' && c != '\t')
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
internal static bool IsHeaderName(string name)
|
|
{
|
|
if (name == null || name.Length == 0)
|
|
return false;
|
|
|
|
int len = name.Length;
|
|
for (int i = 0; i < len; i++)
|
|
{
|
|
char c = name[i];
|
|
if (c > 126 || !allowed_chars[c])
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
}
|
|
}
|