private void HeaderReceivedCallBack(IAsyncResult result)
{
ITransferContext context = (ITransferContext)result.AsyncState;
int receive = context.Listener.EndReceive(result);
if (receive > 0)
{
context.IncomingHeader(receive);
}
if (context.DeserialPacketSize > 0)
{
int buffersize = (context.DeserialPacketSize < context.BufferSize) ? (int)context.DeserialPacketSize : context.BufferSize;
context.Listener.BeginReceive(context.HeaderBuffer, 0, buffersize, SocketFlags.None, HeaderReceivedCallBack, context);
}
else
{
TransferOperation request = new TransferOperation(context.Transfer, MessagePart.Header, DirectionType.Receive);
request.Resolve(context.DeserialPacket);
if (!context.ReceiveMessage &&
!context.SendMessage)
{
context.Close = true;
}
context.HeaderReceivedNotice.Set();
HeaderReceived.Execute(this);
}
}
/// <summary>
/// The DealHeaderReceived.
/// </summary>
/// <param name="context">The context<see cref="ITransferContext"/>.</param>
public void DealHeaderReceived(ITransferContext context)
{
if (context.BlockSize > 0)
{
int buffersize = (context.BlockSize < context.BufferSize) ? (int)context.BlockSize : context.BufferSize;
context.Listener.BeginReceive(context.HeaderBuffer, 0, buffersize, SocketFlags.None, HeaderReceivedCallback, context);
}
else
{
TransferOperation request = new TransferOperation(context.Transfer, MessagePart.Header, DirectionType.Receive);
request.Resolve(context);
context.HeaderReceivedNotice.Set();
try
{
HeaderReceived.Execute(context);
}
catch (Exception ex)
{
Echo(ex.Message);
CloseClient(context.Id);
}
}
}
/// <summary>
/// We've parsed a new header.
/// </summary>
/// <param name="name">Name in lower case</param>
/// <param name="value">Value, unmodified.</param>
/// <exception cref="BadRequestException">If content length cannot be parsed.</exception>
protected void OnHeader(string name, string value)
{
m_headerArgs.Name = name;
m_headerArgs.Value = value;
if (string.Compare(name, "content-length", true) == 0)
{
if (!int.TryParse(value, out m_bodyBytesLeft))
{
throw new BadRequestException("Content length is not a number.");
}
}
HeaderReceived?.Invoke(this, m_headerArgs);
}
/// <summary>
/// We've parsed a new header.
/// </summary>
/// <param name="name">Name in lower case</param>
/// <param name="value">Value, unmodified.</param>
/// <exception cref="BadRequestException">If content length cannot be parsed.</exception>
protected void OnHeader()
{
if (string.Compare(m_curHeaderName, "content-length", true) == 0)
{
if (!int.TryParse(m_curHeaderValue, out m_bodyBytesLeft))
{
throw new BadRequestException("Content length is not a number.");
}
}
if (HeaderReceived != null)
{
m_headerArgs.Name = m_curHeaderName;
m_headerArgs.Value = m_curHeaderValue;
HeaderReceived?.Invoke(this, m_headerArgs);
}
m_curHeaderName = string.Empty;
m_curHeaderValue = string.Empty;
}
private static IDictionary<string, IHeaderFieldParser> CreateHeaderFieldList()
{
// NOTE: Header fields not mentioned here are treated as unstructured
fieldMap = new Dictionary<string,
IHeaderFieldParser>();
fieldMap["content-return"] = new
HeaderX400ContentReturn();
fieldMap["x400-content-return"] = new HeaderX400ContentReturn();
fieldMap["delivery-date"] = new HeaderDeliveryDate();
fieldMap["priority"] = new HeaderPriority();
fieldMap["importance"] = new HeaderImportance();
fieldMap["sensitivity"] = new HeaderSensitivity();
fieldMap["reply-by"] = new HeaderDate();
fieldMap["x400-content-identifier"] = new HeaderX400ContentIdentifier();
fieldMap["x400-received"] = new HeaderX400Received();
fieldMap["x400-mts-identifier"] = new HeaderX400MtsIdentifier();
fieldMap["x400-trace"] = new HeaderX400Received();
fieldMap["x400-originator"] = new HeaderX400Originator();
fieldMap["x400-recipients"] = new HeaderX400Recipients();
fieldMap["conversion"] = new HeaderConversion();
fieldMap["conversion-with-loss"] = new HeaderConversionWithLoss();
fieldMap["supersedes"] = new HeaderSupersedes();
fieldMap["expires"] = new HeaderDate();
fieldMap["autoforwarded"] = new HeaderAutoforwarded();
fieldMap["generate-delivery-report"] = new HeaderGenerateDeliveryReport();
fieldMap["incomplete-copy"] = new HeaderIncompleteCopy();
fieldMap["prevent-nondelivery-report"] = new HeaderPreventNondeliveryReport();
fieldMap["alternate-recipient"] = new HeaderAlternateRecipient();
fieldMap["disclose-recipients"] = new HeaderDiscloseRecipients();
fieldMap["expanded-date"] = new HeaderExpandedDate();
fieldMap["newsgroups"] = new HeaderNewsgroups();
fieldMap["path"] = new HeaderPath();
fieldMap["archive"] = new HeaderArchive();
fieldMap["control"] = new HeaderControl();
fieldMap["distribution"] = new HeaderDistribution();
fieldMap["followup-to"] = new HeaderFollowupTo();
fieldMap["injection-date"] = new HeaderInjectionDate();
fieldMap["injection-info"] = new HeaderInjectionInfo();
fieldMap["user-agent"] = new HeaderUserAgent();
fieldMap["xref"] = new HeaderXref();
fieldMap["nntp-posting-date"] = new HeaderInjectionDate();
fieldMap["nntp-posting-host"] = new HeaderNntpPostingHost();
fieldMap["accept-language"] = new HeaderAcceptLanguage();
fieldMap["archived-at"] = new HeaderArchivedAt();
fieldMap["authentication-results"] = new HeaderAuthenticationResults();
fieldMap["auto-submitted"] = new HeaderAutoSubmitted();
fieldMap["base"] = new HeaderContentBase();
fieldMap["bcc"] = new HeaderBcc();
fieldMap["cc"] = new HeaderTo();
fieldMap["content-base"] = new HeaderContentBase();
fieldMap["content-disposition"] = new HeaderContentDisposition();
fieldMap["content-duration"] = new HeaderContentDuration();
fieldMap["content-id"] = new HeaderContentId();
fieldMap["content-language"] = new HeaderContentLanguage();
fieldMap["content-location"] = new HeaderContentLocation();
fieldMap["content-md5"] = new HeaderContentMd5();
fieldMap["content-transfer-encoding"] = new HeaderContentTransferEncoding();
fieldMap["content-type"] = new HeaderContentType();
fieldMap["date"] = new HeaderDate();
fieldMap["deferred-delivery"] = new HeaderDeferredDelivery();
fieldMap["disposition-notification-options"] = new
HeaderDispositionNotificationOptions();
fieldMap["disposition-notification-to"] = new HeaderDispositionNotificationTo();
fieldMap["mmhs-authorizing-users"] = new HeaderMmhsAuthorizingUsers();
fieldMap["dkim-signature"] = new HeaderDkimSignature();
fieldMap["ediint-features"] = new HeaderEdiintFeatures();
fieldMap["eesst-version"] = new HeaderEesstVersion();
fieldMap["encoding"] = new HeaderEncoding();
fieldMap["encrypted"] = new HeaderEncrypted();
fieldMap["expiry-date"] = new HeaderDate();
fieldMap["from"] = new HeaderFrom();
fieldMap["in-reply-to"] = new HeaderInReplyTo();
fieldMap["jabber-id"] = new HeaderJabberId();
fieldMap["keywords"] = new HeaderKeywords();
fieldMap["language"] = new HeaderLanguage();
fieldMap["latest-delivery-time"] = new HeaderLatestDeliveryTime();
fieldMap["list-id"] = new HeaderListId();
fieldMap["message-context"] = new HeaderMessageContext();
fieldMap["message-id"] = new HeaderMessageId();
fieldMap["mime-version"] = new HeaderMimeVersion();
fieldMap["mmhs-acp127-message-identifier"] = new
HeaderMmhsAcp127MessageIdentifier();
fieldMap["mmhs-codress-message-indicator"] = new
HeaderMmhsCodressMessageIndicator();
fieldMap["mmhs-copy-precedence"] = new HeaderMmhsCopyPrecedence();
fieldMap["mmhs-exempted-address"] = new HeaderMmhsExemptedAddress();
fieldMap["mmhs-extended-authorisation-info"] = new
HeaderMmhsExtendedAuthorisationInfo();
fieldMap["mmhs-handling-instructions"] = new HeaderMmhsHandlingInstructions();
fieldMap["mmhs-message-instructions"] = new HeaderMmhsMessageInstructions();
fieldMap["mmhs-message-type"] = new HeaderMmhsMessageType();
fieldMap["mmhs-originator-plad"] = new HeaderMmhsOriginatorPlad();
fieldMap["mmhs-originator-reference"] = new HeaderMmhsOriginatorReference();
fieldMap["mmhs-other-recipients-indicator-cc"] = new
HeaderMmhsOtherRecipientsIndicatorCc();
fieldMap["mmhs-other-recipients-indicator-to"] = new
HeaderMmhsOtherRecipientsIndicatorTo();
fieldMap["mmhs-primary-precedence"] = new HeaderMmhsPrimaryPrecedence();
fieldMap["mmhs-subject-indicator-codes"] = new
HeaderMmhsSubjectIndicatorCodes();
fieldMap["mt-priority"] = new HeaderMtPriority();
fieldMap["obsoletes"] = new HeaderObsoletes();
fieldMap["original-from"] = new HeaderFrom();
fieldMap["original-message-id"] = new HeaderMessageId();
fieldMap["original-recipient"] = new HeaderOriginalRecipient();
fieldMap["received"] = new HeaderReceived();
fieldMap["received-spf"] = new HeaderReceivedSpf();
fieldMap["references"] = new HeaderInReplyTo();
fieldMap["reply-to"] = new HeaderResentTo();
fieldMap["require-recipient-valid-since"] = new
HeaderRequireRecipientValidSince();
fieldMap["resent-bcc"] = new HeaderBcc();
fieldMap["resent-cc"] = new HeaderResentTo();
fieldMap["resent-date"] = new HeaderDate();
fieldMap["resent-from"] = new HeaderFrom();
fieldMap["resent-message-id"] = new HeaderMessageId();
fieldMap["resent-reply-to"] = new HeaderResentTo();
fieldMap["resent-sender"] = new HeaderSender();
fieldMap["resent-to"] = new HeaderResentTo();
fieldMap["return-path"] = new HeaderReturnPath();
fieldMap["sender"] = new HeaderSender();
fieldMap["sio-label"] = new HeaderSioLabel();
fieldMap["sio-label-history"] = new HeaderSioLabel();
fieldMap["solicitation"] = new HeaderSolicitation();
fieldMap["to"] = new HeaderTo();
fieldMap["vbr-info"] = new HeaderVbrInfo();
fieldMap["x-archived-at"] = new HeaderXArchivedAt();
fieldMap["x-mittente"] = new HeaderSender();
fieldMap["x-ricevuta"] = new HeaderXRicevuta();
fieldMap["x-riferimento-message-id"] = new HeaderMessageId();
fieldMap["x-tiporicevuta"] = new HeaderXTiporicevuta();
fieldMap["x-trasporto"] = new HeaderXTrasporto();
fieldMap["x-verificasicurezza"] = new HeaderXVerificasicurezza();
return fieldMap;
}