public static IEnumerable <Body> Parse(string contentType, byte[] buffer)
{
switch (contentType.Split(';').First().ToLowerInvariant())
{
case "application/isup":
yield return(IsupBodyParser.GetBody(new ByteStream(buffer, 0)));
break;
case "application/sdp":
yield return(SdpBodyParser.GetBody(new ByteStream(buffer, 0), contentType));
break;
case "multipart/mixed":
var boundaryId = from x in contentType.Split(';')
let splited = x.Split('=')
where splited.Length == 2 && splited[0] == "boundary"
select splited[1];
foreach (var b in MultipartBodyParser.GetBodies(buffer, boundaryId.First()))
{
yield return(b);
}
break;
}
}
public static IEnumerable <Body> GetBodies(byte[] data, string boundaryId)
{
var bs = new ByteStream(data, 0);
var headers = new Dictionary <string, string>(StringComparer.InvariantCultureIgnoreCase);
foreach (var l in bs.Lines())
{
if (l == "--" + boundaryId)
{
headers.Clear();
continue;
}
if (l == string.Empty)
{
if (!headers.ContainsKey("Content-Type"))
{
// empty line, no headers, I think there's no more data
yield break;
}
switch (headers["Content-Type"].Split(';').First().ToLowerInvariant())
{
case "application/sdp":
yield return(SdpBodyParser.GetBody(bs, headers["Content-Type"]));
break;
case "application/isup":
yield return(IsupBody.Load(bs));
break;
}
headers.Clear();
continue;
}
var kvp = l.Split(':');
headers[kvp.First().Trim()] = string.Concat(kvp.Skip(1).ToArray()).Trim();
}
}