private void ParseHeaders(HttpClient client)
{
Headers = CreateCollection(client.Headers);
string header;
// Parse Accept.
if (client.Headers.TryGetValue("Accept", out header))
{
string[] parts = header.Split(',');
HttpUtil.TrimAll(parts);
AcceptTypes = parts;
}
else
{
AcceptTypes = EmptyStringArray;
}
// Parse Content-Type.
if (client.Headers.TryGetValue("Content-Type", out header))
{
string[] parts = header.Split(new[] { ';' }, 2);
ContentType = parts[0].Trim();
if (parts.Length == 2)
{
string[] encoding = parts[1].Trim().Split(new[] { '=' }, 2);
if (encoding.Length == 2 && String.Equals(encoding[0], "charset", StringComparison.OrdinalIgnoreCase))
{
ContentEncoding = Encoding.GetEncoding(encoding[1]);
}
}
}
// Parse Content-Length.
if (client.Headers.TryGetValue("Content-Length", out header))
{
int contentLength;
if (int.TryParse(header, out contentLength))
{
ContentLength = contentLength;
}
}
// Parse Referer.
if (client.Headers.TryGetValue("Referer", out header))
{
UrlReferer = new Uri(header);
}
// Parse User-Agent.
if (client.Headers.TryGetValue("User-Agent", out header))
{
UserAgent = header;
}
// Parse Accept-Language.
if (client.Headers.TryGetValue("Accept-Language", out header))
{
string[] parts = header.Split(',');
HttpUtil.TrimAll(parts);
UserLanguages = parts;
}
else
{
UserLanguages = EmptyStringArray;
}
// Parse Cookie.
Cookies = new HttpCookieCollection();
if (client.Headers.TryGetValue("Cookie", out header))
{
string[] parts = header.Split(';');
foreach (string part in parts)
{
string[] partParts = part.Split(new[] { '=' }, 2);
string name = partParts[0].Trim();
string value = partParts.Length == 1 ? null : partParts[1];
Cookies.AddCookie(new HttpCookie(name, value), true);
}
}
}
private void ParsePath(HttpClient client)
{
RawUrl = client.Request;
string[] parts = client.Request.Split(new[] { '?' }, 2);
Path = parts[0];
QueryString = new NameValueCollection();
if (parts.Length == 2)
{
HttpUtil.UrlDecodeTo(parts[1], QueryString);
}
string host;
string port;
string hostHeader;
if (client.Headers.TryGetValue("Host", out hostHeader))
{
parts = hostHeader.Split(new[] { ':' }, 2);
host = parts[0];
if (parts.Length == 2)
{
port = parts[1];
}
else
{
port = null;
}
}
else
{
var endPoint = client.Server.EndPoint;
host = endPoint.Address.ToString();
if (endPoint.Port == 80)
{
port = null;
}
else
{
port = endPoint.Port.ToString(CultureInfo.InvariantCulture);
}
}
var sb = new StringBuilder();
sb.Append("http://");
sb.Append(host);
if (port != null)
{
sb.Append(':');
sb.Append(port);
}
sb.Append(client.Request);
Url = new Uri(sb.ToString());
}
public static string HtmlDecode(string value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
var sb = new StringBuilder();
for (int i = 0; i < value.Length; i++)
{
if (value[i] == '&' && value.Length > i + 2)
{
// Scan for the ;.
int maxSearch = Math.Min(value.Length, i + _longestHtmlEntity + 2);
int endPosition = -1;
for (int j = i + 1; j < maxSearch; j++)
{
if (value[j] == ';')
{
endPosition = j;
break;
}
}
// If we did not find an end separator, just skip over this
// entity and treat is at text.
if (endPosition == -1)
{
sb.Append(value[i]);
continue;
}
// Are we in a numeric separator?
if (value[i + 1] == '#')
{
int offset = 2;
bool isHexNumeric = false;
if (value[i + 2] == 'x' || value[i + 2] == 'X')
{
isHexNumeric = true;
offset++;
}
// All parts of the numeric separator must be digits.
bool isNumeric = true;
for (int j = i + offset; j < endPosition; j++)
{
if (!(
Char.IsDigit(value[j]) ||
(isHexNumeric && HttpUtil.IsHex(value[j]))
))
{
isNumeric = false;
break;
}
}
// If not all numeric, just skip over this
// entity and treat is at text.
if (!isNumeric)
{
sb.Append(value[i]);
continue;
}
// Convert the numeric entity to unicode.
string numericEntity = value.Substring(i + offset, endPosition - (i + offset));
sb.Append((char)int.Parse(numericEntity, isHexNumeric ? NumberStyles.HexNumber : NumberStyles.Integer));
i = endPosition;
}
else
{
string entity = value.Substring(i + 1, endPosition - (i + 1));
int codePoint;
if (_htmlEntitiesByEntity.TryGetValue(entity, out codePoint))
{
sb.Append((char)codePoint);
i = endPosition;
}
else
{
// If we don't know the entity, just skip over this
// entity and treat is at text.
sb.Append(value[i]);
}
}
}
else
{
sb.Append(value[i]);
}
}
return(sb.ToString());
}