/// <summary>
/// Parses a <see cref="NameValueCollection"/> to a <see cref="MessageHeader"/>
/// </summary>
/// <param name="headers">The collection that should be traversed and parsed</param>
/// <returns>A valid <see cref="MessageHeader"/> object</returns>
/// <exception cref="ArgumentNullException">If <paramref name="headers"/> is <see langword="null"/></exception>
private void ParseHeaders(NameValueCollection headers)
{
if (headers == null)
{
throw new ArgumentNullException("headers");
}
// Now begin to parse the header values
foreach (string headerName in headers.Keys)
{
string[] headerValues = headers.GetValues(headerName);
if (headerValues != null)
{
foreach (string headerValue in headerValues)
{
try
{
ParseHeader(headerName, headerValue);
}
catch (Exception ex)
{
if (_parsingErrorHandler != null)
{
_parsingErrorHandler.HandleParseError(new ParseError(ex, headerValue, string.Format("On header {0}", headerName)));
}
else
{
throw;
}
}
}
}
}
}
/// <summary>
/// Used to construct the topmost message part
/// </summary>
/// <param name="rawBody">The body that needs to be parsed</param>
/// <param name="headers">The headers that should be used from the message</param>
/// <param name="parsingErrorHandler">(Optional) It is notifified when an error occurs while parsing something in the message.
/// If it is not null, the handler handles the error on the specific element without stopping the message parsing process</param>
/// <exception cref="ArgumentNullException">If <paramref name="rawBody"/> or <paramref name="headers"/> is <see langword="null"/></exception>
internal MessagePart(byte[] rawBody, MessageHeader headers, IParsingErrorHandler parsingErrorHandler = null)
{
if (rawBody == null)
{
throw new ArgumentNullException("rawBody");
}
if (headers == null)
{
throw new ArgumentNullException("headers");
}
_parsingErrorHandler = parsingErrorHandler;
ContentType = headers.ContentType;
ContentDescription = headers.ContentDescription;
ContentTransferEncoding = headers.ContentTransferEncoding;
ContentId = headers.ContentId;
ContentDisposition = headers.ContentDisposition;
FileName = FindFileName(ContentType, ContentDisposition, "(no name)");
try
{
BodyEncoding = ParseBodyEncoding(ContentType.CharSet);
}
catch (FormatException ex)
{
BodyEncoding = Encoding.UTF8;
if (_parsingErrorHandler != null)
{
_parsingErrorHandler.HandleParseError(new ParseError(ex, ContentType.CharSet, string.Format("On body encoding. Encoding set to {0}", BodyEncoding.EncodingName)));
}
else
{
throw;
}
}
ParseBody(rawBody);
}
/// <summary>
/// Used to construct the topmost message part
/// </summary>
/// <param name="rawBody">The body that needs to be parsed</param>
/// <param name="headers">The headers that should be used from the message</param>
/// <param name="parsingErrorHandler">(Optional) It is notifified when an error occurs while parsing something in the message.
/// If it is not null, the handler handles the error on the specific element without stopping the message parsing process</param>
/// <exception cref="ArgumentNullException">If <paramref name="rawBody"/> or <paramref name="headers"/> is <see langword="null"/></exception>
internal MessagePart(byte[] rawBody, MessageHeader headers, IParsingErrorHandler parsingErrorHandler = null)
{
if(rawBody == null)
throw new ArgumentNullException("rawBody");
if(headers == null)
throw new ArgumentNullException("headers");
_parsingErrorHandler = parsingErrorHandler;
ContentType = headers.ContentType;
ContentDescription = headers.ContentDescription;
ContentTransferEncoding = headers.ContentTransferEncoding;
ContentId = headers.ContentId;
ContentDisposition = headers.ContentDisposition;
FileName = FindFileName(ContentType, ContentDisposition, "(no name)");
try
{
BodyEncoding = ParseBodyEncoding(ContentType.CharSet);
}
catch (FormatException ex)
{
BodyEncoding = Encoding.UTF8;
if (_parsingErrorHandler != null)
{
_parsingErrorHandler.HandleParseError(new ParseError(ex, ContentType.CharSet, string.Format("On body encoding. Encoding set to {0}", BodyEncoding.EncodingName)));
}
else
{
throw;
}
}
ParseBody(rawBody);
}