jellyfin/RSSDP/HttpResponseParser.cs
Erwin de Haan ec1f5dc317 Mayor code cleanup
Add Argument*Exceptions now use proper nameof operators.

Added exception messages to quite a few Argument*Exceptions.

Fixed rethorwing to be proper syntax.

Added a ton of null checkes. (This is only a start, there are about 500 places that need proper null handling)

Added some TODOs to log certain exceptions.

Fix sln again.

Fixed all AssemblyInfo's and added proper copyright (where I could find them)

We live in *current year*.

Fixed the use of braces.

Fixed a ton of properties, and made a fair amount of functions static that should be and can be static.

Made more Methods that should be static static.

You can now use static to find bad functions!

Removed unused variable. And added one more proper XML comment.
2019-01-10 20:38:53 +01:00

97 lines
3.2 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;
namespace Rssdp.Infrastructure
{
/// <summary>
/// Parses a string into a <see cref="System.Net.Http.HttpResponseMessage"/> or throws an exception.
/// </summary>
public sealed class HttpResponseParser : HttpParserBase<System.Net.Http.HttpResponseMessage>
{
#region Fields & Constants
private readonly string[] ContentHeaderNames = new string[]
{
"Allow", "Content-Disposition", "Content-Encoding", "Content-Language", "Content-Length", "Content-Location", "Content-MD5", "Content-Range", "Content-Type", "Expires", "Last-Modified"
};
#endregion
#region Public Methods
/// <summary>
/// Parses the specified data into a <see cref="System.Net.Http.HttpResponseMessage"/> instance.
/// </summary>
/// <param name="data">A string containing the data to parse.</param>
/// <returns>A <see cref="System.Net.Http.HttpResponseMessage"/> instance containing the parsed data.</returns>
public override HttpResponseMessage Parse(string data)
{
System.Net.Http.HttpResponseMessage retVal = null;
try
{
retVal = new System.Net.Http.HttpResponseMessage();
Parse(retVal, retVal.Headers, data);
return retVal;
}
catch
{
if (retVal != null)
retVal.Dispose();
throw;
}
}
#endregion
#region Overrides Methods
/// <summary>
/// Returns a boolean indicating whether the specified HTTP header name represents a content header (true), or a message header (false).
/// </summary>
/// <param name="headerName">A string containing the name of the header to return the type of.</param>
/// <returns>A boolean, true if th specified header relates to HTTP content, otherwise false.</returns>
protected override bool IsContentHeader(string headerName)
{
return ContentHeaderNames.Contains(headerName, StringComparer.OrdinalIgnoreCase);
}
/// <summary>
/// Used to parse the first line of an HTTP request or response and assign the values to the appropriate properties on the <paramref name="message"/>.
/// </summary>
/// <param name="data">The first line of the HTTP message to be parsed.</param>
/// <param name="message">Either a <see cref="System.Net.Http.HttpResponseMessage"/> or <see cref="System.Net.Http.HttpRequestMessage"/> to assign the parsed values to.</param>
protected override void ParseStatusLine(string data, HttpResponseMessage message)
{
if (data == null) throw new ArgumentNullException(nameof(data));
if (message == null) throw new ArgumentNullException(nameof(message));
var parts = data.Split(' ');
if (parts.Length < 2) throw new ArgumentException("data status line is invalid. Insufficient status parts.", nameof(data));
message.Version = ParseHttpVersion(parts[0].Trim());
int statusCode = -1;
if (!Int32.TryParse(parts[1].Trim(), out statusCode))
throw new ArgumentException("data status line is invalid. Status code is not a valid integer.", nameof(data));
message.StatusCode = (HttpStatusCode)statusCode;
if (parts.Length >= 3)
{
message.ReasonPhrase = parts[2].Trim();
}
}
#endregion
}
}