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//-----------------------------------------------------------------------
// <copyright file="HttpRequestInfo.cs" company="Outercurve Foundation">
// Copyright (c) Outercurve Foundation. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.Messaging {
using System;
using System.Collections.Specialized;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Diagnostics.Contracts;
using System.Globalization;
using System.IO;
using System.Net;
using System.Net.Mime;
using System.ServiceModel.Channels;
using System.Web;
/// <summary>
/// A property store of details of an incoming HTTP request.
/// </summary>
/// <remarks>
/// This serves a very similar purpose to <see cref="HttpRequest"/>, except that
/// ASP.NET does not let us fully initialize that class, so we have to write one
/// of our one.
/// </remarks>
public class HttpRequestInfo : HttpRequestBase {
private readonly string httpMethod;
private readonly Uri requestUri;
private readonly NameValueCollection queryString;
private readonly NameValueCollection headers;
private readonly NameValueCollection form;
private readonly NameValueCollection serverVariables;
public HttpRequestInfo(HttpRequestMessageProperty request, Uri requestUri) {
Requires.NotNull(request, "request");
Requires.NotNull(requestUri, "requestUri");
this.httpMethod = request.Method;
this.headers = request.Headers;
this.requestUri = requestUri;
this.form = new NameValueCollection();
this.serverVariables = new NameValueCollection();
Reporting.RecordRequestStatistics(this);
}
public HttpRequestInfo(string httpMethod, Uri requestUri, NameValueCollection form = null, NameValueCollection headers = null) {
Requires.NotNullOrEmpty(httpMethod, "httpMethod");
Requires.NotNull(requestUri, "requestUri");
this.httpMethod = httpMethod;
this.requestUri = requestUri;
this.form = form ?? new NameValueCollection();
this.queryString = HttpUtility.ParseQueryString(requestUri.Query);
this.headers = headers ?? new NameValueCollection();
this.serverVariables = new NameValueCollection();
}
/// <summary>
/// Initializes a new instance of the <see cref="HttpRequestInfo"/> class.
/// </summary>
/// <param name="listenerRequest">Details on the incoming HTTP request.</param>
public HttpRequestInfo(HttpListenerRequest listenerRequest) {
Requires.NotNull(listenerRequest, "listenerRequest");
this.httpMethod = listenerRequest.HttpMethod;
this.requestUri = listenerRequest.Url;
this.queryString = listenerRequest.QueryString;
this.headers = listenerRequest.Headers;
this.form = ParseFormData(listenerRequest.HttpMethod, listenerRequest.Headers, listenerRequest.InputStream);
this.serverVariables = new NameValueCollection();
Reporting.RecordRequestStatistics(this);
}
public HttpRequestInfo(string httpMethod, Uri requestUri, NameValueCollection headers, Stream inputStream) {
Requires.NotNullOrEmpty(httpMethod, "httpMethod");
Requires.NotNull(requestUri, "requestUri");
this.httpMethod = httpMethod;
this.requestUri = requestUri;
this.headers = headers;
this.queryString = HttpUtility.ParseQueryString(requestUri.Query);
this.form = ParseFormData(httpMethod, headers, inputStream);
this.serverVariables = new NameValueCollection();
Reporting.RecordRequestStatistics(this);
}
public override string HttpMethod {
get { return this.httpMethod; }
}
public override NameValueCollection Headers {
get { return this.headers; }
}
public override Uri Url {
get { return this.requestUri; }
}
public override string RawUrl {
get { return this.requestUri.AbsolutePath + this.requestUri.Query; }
}
public override NameValueCollection Form {
get { return this.form; }
}
public override NameValueCollection QueryString {
get { return this.queryString; }
}
public override NameValueCollection ServerVariables {
get { return this.serverVariables; }
}
private static NameValueCollection ParseFormData(string httpMethod, NameValueCollection headers, Stream inputStream) {
Requires.NotNullOrEmpty(httpMethod, "httpMethod");
Requires.NotNull(headers, "headers");
ContentType contentType = string.IsNullOrEmpty(headers[HttpRequestHeaders.ContentType]) ? null : new ContentType(headers[HttpRequestHeaders.ContentType]);
if (inputStream != null && httpMethod == "POST" && contentType != null && string.Equals(contentType.MediaType, Channel.HttpFormUrlEncoded, StringComparison.Ordinal)) {
var reader = new StreamReader(inputStream);
long originalPosition = 0;
if (inputStream.CanSeek) {
originalPosition = inputStream.Position;
}
string postEntity = reader.ReadToEnd();
if (inputStream.CanSeek) {
inputStream.Seek(originalPosition, SeekOrigin.Begin);
}
return HttpUtility.ParseQueryString(postEntity);
}
return new NameValueCollection();
}
}
}
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