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//-----------------------------------------------------------------------
// <copyright file="HttpRequestInfo.cs" company="Andrew Arnott">
// Copyright (c) Andrew Arnott. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOAuth.Messaging {
using System;
using System.Collections.Specialized;
using System.Diagnostics;
using System.IO;
using System.Net;
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 {
/// <summary>
/// The key/value pairs found in the entity of a POST request.
/// </summary>
private NameValueCollection form;
/// <summary>
/// The key/value pairs found in the querystring of the incoming request.
/// </summary>
private NameValueCollection queryString;
/// <summary>
/// Initializes a new instance of the <see cref="HttpRequestInfo"/> class.
/// </summary>
internal HttpRequestInfo() {
}
/// <summary>
/// Initializes a new instance of the <see cref="HttpRequestInfo"/> class.
/// </summary>
/// <param name="request">The ASP.NET structure to copy from.</param>
internal HttpRequestInfo(HttpRequest request) {
if (request == null) {
throw new ArgumentNullException("request");
}
this.HttpMethod = request.HttpMethod;
this.Url = request.Url;
this.Headers = GetHeaderCollection(request.Headers);
this.InputStream = request.InputStream;
// These values would normally be calculated, but we'll reuse them from
// HttpRequest since they're already calculated, and there's a chance (<g>)
// that ASP.NET does a better job of being comprehensive about gathering
// these as well.
this.form = request.Form;
this.queryString = request.QueryString;
}
/// <summary>
/// Initializes a new instance of the <see cref="HttpRequestInfo"/> class.
/// </summary>
/// <param name="request">The WCF incoming request structure to get the HTTP information from.</param>
/// <param name="requestUri">The URI of the service endpoint.</param>
internal HttpRequestInfo(HttpRequestMessageProperty request, Uri requestUri) {
if (request == null) {
throw new ArgumentNullException("request");
}
this.HttpMethod = request.Method;
this.Headers = request.Headers;
this.Url = requestUri;
}
/// <summary>
/// Initializes a new instance of the <see cref="HttpRequestInfo"/> class.
/// </summary>
/// <param name="request">The HttpWebRequest (that was never used) to copy from.</param>
internal HttpRequestInfo(WebRequest request) {
this.HttpMethod = request.Method;
this.Url = request.RequestUri;
this.Headers = GetHeaderCollection(request.Headers);
this.InputStream = null;
}
/// <summary>
/// Initializes a new instance of the <see cref="HttpRequestInfo"/> class.
/// </summary>
/// <param name="message">The message being passed in through a mock transport.</param>
internal HttpRequestInfo(IProtocolMessage message) {
this.Message = message;
}
/// <summary>
/// Gets or sets the message that is being sent over a mock transport (for testing).
/// </summary>
internal IProtocolMessage Message { get; set; }
/// <summary>
/// Gets or sets the verb in the request (i.e. GET, POST, etc.)
/// </summary>
internal string HttpMethod { get; set; }
/// <summary>
/// Gets or sets the entire URL of the request.
/// </summary>
internal Uri Url { get; set; }
/// <summary>
/// Gets the query part of the URL (The ? and everything after it).
/// </summary>
internal string Query {
get { return this.Url != null ? this.Url.Query : null; }
}
/// <summary>
/// Gets or sets the collection of headers that came in with the request.
/// </summary>
internal WebHeaderCollection Headers { get; set; }
/// <summary>
/// Gets or sets the entity, or body of the request, if any.
/// </summary>
internal Stream InputStream { get; set; }
/// <summary>
/// Gets the key/value pairs found in the entity of a POST request.
/// </summary>
internal NameValueCollection Form {
get {
if (this.form == null) {
if (this.HttpMethod == "POST" && this.Headers[HttpRequestHeader.ContentType] == "application/x-www-form-urlencoded") {
StreamReader reader = new StreamReader(this.InputStream);
long originalPosition = this.InputStream.Position;
this.form = HttpUtility.ParseQueryString(reader.ReadToEnd());
if (this.InputStream.CanSeek) {
this.InputStream.Seek(originalPosition, SeekOrigin.Begin);
}
} else {
this.form = new NameValueCollection();
}
}
return this.form;
}
}
/// <summary>
/// Gets the key/value pairs found in the querystring of the incoming request.
/// </summary>
internal NameValueCollection QueryString {
get {
if (this.queryString == null) {
this.queryString = HttpUtility.ParseQueryString(this.Query);
}
return this.queryString;
}
}
/// <summary>
/// Converts a NameValueCollection to a WebHeaderCollection.
/// </summary>
/// <param name="pairs">The collection a HTTP headers.</param>
/// <returns>A new collection of the given headers.</returns>
private static WebHeaderCollection GetHeaderCollection(NameValueCollection pairs) {
Debug.Assert(pairs != null, "pairs == null");
WebHeaderCollection headers = new WebHeaderCollection();
foreach (string key in pairs) {
headers.Add(key, pairs[key]);
}
return headers;
}
}
}
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