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Diffstat (limited to 'RSSDP/HttpResponseParser.cs')
| -rw-r--r-- | RSSDP/HttpResponseParser.cs | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/RSSDP/HttpResponseParser.cs b/RSSDP/HttpResponseParser.cs new file mode 100644 index 000000000..ba85a1657 --- /dev/null +++ b/RSSDP/HttpResponseParser.cs @@ -0,0 +1,93 @@ +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 static 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(); + + retVal.Content = 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("data"); + if (message == null) throw new ArgumentNullException("message"); + + var parts = data.Split(' '); + if (parts.Length < 3) throw new ArgumentException("data status line is invalid. Insufficient status parts.", "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.", "data"); + + message.StatusCode = (HttpStatusCode)statusCode; + message.ReasonPhrase = parts[2].Trim(); + } + + #endregion + + } +}
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