/// <summary>
/// 解析连接请求信息
/// 如果数据未完整则返回null
/// </summary>
/// <param name="context">上下文</param>
/// <param name="request">http请求</param>
/// <exception cref="HttpException"></exception>
/// <returns></returns>
public static bool Parse(IContenxt context, out HttpRequest request)
{
context.Buffer.Position = 0;
var doubleCrlf = Encoding.ASCII.GetBytes("\r\n\r\n");
var headerIndex = context.Buffer.IndexOf(doubleCrlf);
if (headerIndex < 0)
{
request = null;
return(false);
}
var headerLength = headerIndex + doubleCrlf.Length;
var headerString = context.Buffer.ReadString(headerLength, Encoding.ASCII);
const string pattern = @"^(?<method>[^\s]+)\s(?<path>[^\s]+)\sHTTP\/1\.1\r\n" +
@"((?<field_name>[^:\r\n]+):\s(?<field_value>[^\r\n]*)\r\n)+" +
@"\r\n";
var match = Regex.Match(headerString, pattern, RegexOptions.IgnoreCase);
if (match.Success == false)
{
request = null;
return(false);
}
var httpMethod = GetHttpMethod(match.Groups["method"].Value);
var httpHeader = HttpHeader.Parse(match.Groups["field_name"].Captures, match.Groups["field_value"].Captures);
var contentLength = httpHeader.TryGet <int>("Content-Length");
if (httpMethod == HttpMethod.POST && context.Buffer.Length - headerLength < contentLength)
{
request = null; // 数据未完整
return(true);
}
request = new HttpRequest
{
LocalEndPoint = context.Session.LocalEndPoint,
RemoteEndPoint = context.Session.RemoteEndPoint,
HttpMethod = httpMethod,
Headers = httpHeader
};
request.Url = new Uri("http://localhost:" + context.Session.LocalEndPoint.Port + match.Groups["path"].Value);
request.Path = request.Url.AbsolutePath;
request.Query = HttpNameValueCollection.Parse(request.Url.Query.TrimStart('?'), false);
if (httpMethod == HttpMethod.GET)
{
request.Body = new byte[0];
request.Form = new HttpNameValueCollection();
request.Files = new HttpFile[0];
}
else
{
request.Body = context.Buffer.ReadArray(contentLength);
context.Buffer.Position = headerLength;
HttpRequest.GeneratePostFormAndFiles(request, context.Buffer);
}
context.Buffer.Clear(headerLength + contentLength);
return(true);
}
/// <summary>
/// 解析连接请求信息
/// 如果数据未完整则返回null
/// </summary>
/// <param name="context">上下文</param>
/// <param name="request">http请求</param>
/// <exception cref="HttpException"></exception>
/// <returns></returns>
public static bool Parse(IContenxt context, out HttpRequest request)
{
var headerLength = 0;
request = null;
if (Protocol.IsHttp(context.Buffer, out headerLength) == false)
{
return(false);
}
if (headerLength <= 0)
{
return(true);
}
context.Buffer.Position = 0;
var headerString = context.Buffer.ReadString(headerLength, Encoding.ASCII);
const string pattern = @"^(?<method>[^\s]+)\s(?<path>[^\s]+)\sHTTP\/1\.1\r\n" +
@"((?<field_name>[^:\r\n]+):\s(?<field_value>[^\r\n]*)\r\n)+" +
@"\r\n";
var match = Regex.Match(headerString, pattern, RegexOptions.IgnoreCase);
if (match.Success == false)
{
return(false);
}
var httpMethod = GetHttpMethod(match.Groups["method"].Value);
var httpHeader = HttpHeader.Parse(match.Groups["field_name"].Captures, match.Groups["field_value"].Captures);
var contentLength = httpHeader.TryGet <int>("Content-Length");
if (httpMethod == HttpMethod.POST && context.Buffer.Length - headerLength < contentLength)
{
return(true); // 数据未完整
}
request = new HttpRequest
{
LocalEndPoint = context.Session.LocalEndPoint,
RemoteEndPoint = context.Session.RemoteEndPoint,
HttpMethod = httpMethod,
Headers = httpHeader
};
var scheme = context.Session.IsSecurity ? "https" : "http";
var url = string.Format("{0}://{1}{2}", scheme, context.Session.LocalEndPoint, match.Groups["path"].Value);
request.Url = new Uri(url);
request.Path = request.Url.AbsolutePath;
request.Query = HttpNameValueCollection.Parse(request.Url.Query.TrimStart('?'));
switch (httpMethod)
{
case HttpMethod.GET:
request.Body = new byte[0];
request.Form = new HttpNameValueCollection();
request.Files = new HttpFile[0];
break;
default:
request.Body = context.Buffer.ReadArray(contentLength);
context.Buffer.Position = headerLength;
HttpRequest.GeneratePostFormAndFiles(request, context.Buffer);
break;
}
context.Buffer.Clear(headerLength + contentLength);
return(true);
}
/// <summary>
/// 解析连接请求信息
/// 如果数据未完整则返回null
/// </summary>
/// <param name="buffer">接收到的原始数量</param>
/// <param name="localEndpoint">服务器的本地终结点</param>
/// <param name="remoteEndpoint">远程端的IP和端口</param>
/// <exception cref="HttpException"></exception>
/// <returns></returns>
public static HttpRequest Parse(ReceiveBuffer buffer, IPEndPoint localEndpoint, IPEndPoint remoteEndpoint)
{
buffer.Position = 0;
var doubleCrlf = Encoding.ASCII.GetBytes("\r\n\r\n");
var headerIndex = buffer.IndexOf(doubleCrlf);
if (headerIndex < 0)
{
return(null); // 数据未完整
}
var headerLength = headerIndex + doubleCrlf.Length;
var headerString = buffer.ReadString(headerLength, Encoding.ASCII);
const string pattern = @"^(?<method>[^\s]+)\s(?<path>[^\s]+)\sHTTP\/1\.1\r\n" +
@"((?<field_name>[^:\r\n]+):\s(?<field_value>[^\r\n]*)\r\n)+" +
@"\r\n";
var match = Regex.Match(headerString, pattern, RegexOptions.IgnoreCase);
if (match.Success == false)
{
throw new HttpException(400, "请求中有语法问题，或不能满足请求");
}
var httpMethod = GetHttpMethod(match.Groups["method"].Value);
var httpHeader = new HttpHeader(match.Groups["field_name"].Captures, match.Groups["field_value"].Captures);
var contentLength = httpHeader.TryGet <int>("Content-Length");
if (httpMethod == HttpMethod.POST && buffer.Length - headerLength < contentLength)
{
return(null); // 数据未完整
}
var request = new HttpRequest
{
LocalEndPoint = localEndpoint,
RemoteEndPoint = remoteEndpoint,
HttpMethod = httpMethod,
Headers = httpHeader
};
request.Url = new Uri("http://localhost:" + localEndpoint.Port + match.Groups["path"].Value);
request.Path = request.Url.AbsolutePath;
request.Query = new HttpNameValueCollection(HttpUtility.UrlDecode(request.Url.Query.TrimStart('?')));
if (httpMethod == HttpMethod.GET)
{
request.InputStrem = new byte[0];
request.Form = new HttpNameValueCollection();
request.Files = new HttpFile[0];
}
else
{
request.InputStrem = buffer.ReadArray(contentLength);
buffer.Position = headerLength;
HttpRequest.GeneratePostFormAndFiles(request, buffer);
}
buffer.Clear(headerLength + contentLength);
return(request);
}