// ---------------------- LoadEmail ---------------------------
private void LoadEmail(SocketExchange InEx, Int64 InMailDropPosition)
{
// tell the server we want to read the message.
InEx.Send("retr " + InMailDropPosition + PopConstants.CrLf);
InEx.ExpectedResponseCodes =
new ExpectedResponseCodes(PopConstants.Ok, PopConstants.Error);
InEx.SendReceive("retr " + InMailDropPosition + PopConstants.CrLf);
InEx.ThrowIfUnexpectedResponse( );
// -ERR response. no such message number.
if (InEx.ResponseCode == PopConstants.Error)
{
}
else
{
// for now, receive SSL link messages in the same thread.
if (InEx.ConnectedSecureSocket != null)
{
StringBuilder mail = null;
mail = ReceiveMessage_SameThread(InEx);
InEx.LoadResponseMessage(mail.ToString( ));
}
// receive in a background thread.
else
{
StartReceive(InEx);
InEx.LoadResponseMessage(mSockThreadState.sb.ToString( ));
}
}
// parse email ...
mParts = MimeCommon.MessagePartSplitter(InEx.ResponseMessage);
string[] lines = MimeCommon.MessageLineSplitter(InEx.ResponseMessage);
mAttachments = null;
MimeAttachment attach = (MimeAttachment)Attachments.FirstAttachment( ).Current;
if (attach != null)
{
attach.SaveAs("c:\\apress\\attachment.txt");
}
// if (1 == 2)
// DumpHeader(InEx, InMailDropPosition);
for (int ix = 0; ix < lines.Length; ++ix)
{
InEx.Logger.AddMessage(NetworkRole.Server, lines[ix]);
}
ParseEmail(lines);
// remove reading pop3State ...
mSockThreadState = null;
}
/// <summary>
/// Build list of attachments in the mime message.
/// </summary>
/// <param name="InPartList"></param>
/// <returns></returns>
public MimeAttachmentList BuildList(MimeMessagePartList InPartList)
{
// clear the list
Clear( );
AcEnumerator it = InPartList.BeginParts( );
for (it = InPartList.FirstPart( ); it.Current != null; it.MoveNext( ))
{
MimeMessagePart part = (MimeMessagePart)it.Current;
PartProperty.ContentDisposition disp = part.Properties.ContentDisposition;
if ((disp != null) && (disp.Disposition == "attachment"))
{
AddNewAttachment(part);
}
}
return(this);
}
// -------------------------- MessagePartSplitter -----------------------
// input is an array holding the unfolded lines of the message.
// Build and return a list of MimeMessagePart objects. Each part object holds the
// lines of a part of the message.
// ( a part is either the header part or the boundary string delimited content parts.
public static InMail.MimeMessagePartList MessagePartSplitter(string InStream)
{
InMail.MimeMessagePartList parts = new InMail.MimeMessagePartList( );
bool currentlyBetweenParts = false;
StringStack bdryStack = new StringStack( );
int Ex = -1;
string line = null;
MimeMessagePart.PartInProgress pip =
new MimeMessagePart.PartInProgress(MimePartCode.Top);
while (true)
{
// advance in string.
int lineBx = Ex + 1;
if (lineBx >= InStream.Length)
{
break;
}
// the next line in the stream. recognize folds depending on if currently within
// a part header or within the message lines of the part ( no folding there )
if (pip.CurrentlyAmoungPropertyLines == true)
{
IntStringPair rv = ScanEndUnfoldedLine(InStream, lineBx);
Ex = rv.a;
line = rv.b;
}
else
{
IntStringPair rv = ScanEndLine(InStream, lineBx);
Ex = rv.a;
line = rv.b;
}
// calc what kind of a line in the mime document we have here.
MimeLineCode lc = MimeParser.CalcLineCode(line, bdryStack.GetTop( ));
if ((lc == MimeLineCode.Property) &&
(pip.CurrentlyAmoungMessageLines == true))
{
lc = MimeLineCode.Text;
}
switch (lc)
{
case MimeLineCode.Property:
{
StringPair propPair = MimeParser.SplitPropertyLine(line);
// the content-type property. Could have an boundary="xxxxx" element.
// Boundary strings in a mime document have scope. That is, within one
// boundary ( section ) of the document, there can be sub boundaries
// ( sub sections )
if (propPair.a.ToLower( ) == "content-type")
{
PartProperty.ContentType ct =
MimeParser.ParseContentType(propPair.b);
if ((ct.Boundary != null) && (ct.Boundary != ""))
{
bdryStack.Push(ct.Boundary);
}
}
pip.AddLine(lineBx, line);
break;
}
// part boundary line. load the lines of the current part and reset the line
// counter of this new part.
case MimeLineCode.PartBdry:
if (pip.HasLines == true)
{
parts.AddNewPart(InStream, pip);
}
pip = new MimeMessagePart.PartInProgress(MimePartCode.Content);
currentlyBetweenParts = false;
break;
case MimeLineCode.PartEndBdry:
if (pip.HasLines == true)
{
parts.AddNewPart(InStream, pip);
}
pip = new MimeMessagePart.PartInProgress(MimePartCode.Content);
if (bdryStack.IsNotEmpty)
{
bdryStack.Pop( );
}
currentlyBetweenParts = true;
break;
// we have a line which is not a property line, not a boundary line.
default:
{
// just starting out. discard the "+OK" response sent by the server immed
// before the start of the message.
if ((pip.PartCode == MimePartCode.Top) &&
(pip.PartIsJustStarting == true) &&
(line.Length >= 3) &&
(line.Substring(0, 3) == "+OK"))
{
}
// currently handling property lines.
else if (pip.CurrentlyAmoungPropertyLines == true)
{
// a blank line switches from property lines to message lines.
if (line.Length == 0)
{
pip.CurrentlyAmoungPropertyLines = false;
pip.CurrentlyAmoungMessageLines = true;
}
// what is this text line doing amoung the property lines ??
// for now, just ignore it.
else
{
}
}
else if (currentlyBetweenParts == false)
{
pip.AddLine(lineBx, line);
}
break;
}
}
}
// load the lines of the final in progress part.
if (pip.HasLines == true)
{
parts.AddNewPart(InStream, pip);
}
return(parts);
}
// -------------------------- MessagePartSplitter -----------------------
// input is an array holding the unfolded lines of the message.
// Build and return a list of MimeMessagePart objects. Each part object holds the
// lines of a part of the message.
// ( a part is either the header part or the boundary string delimited content parts.
public static InMail.MimeMessagePartList MessagePartSplitter(string[] InLines)
{
InMail.MimeMessagePartList parts = new InMail.MimeMessagePartList( );
int curPartBx = -1;
int curPartCx = 0;
MimePartCode curPartCode = MimePartCode.Top;
bool currentlyBetweenParts = false;
bool partIsJustStarting = true;
StringStack bdryStack = new StringStack( );
for (int Ix = 0; Ix < InLines.Length; ++Ix)
{
string line = InLines[Ix];
MimeLineCode lc = MimeParser.CalcLineCode(line, bdryStack.GetTop( ));
switch (lc)
{
case MimeLineCode.Property:
{
StringPair propPair = MimeParser.SplitPropertyLine(line);
// the content-type property. Could have an boundary="xxxxx" element.
// Boundary strings in a mime document have scope. That is, within one
// boundary ( section ) of the document, there can be sub boundaries
// ( sub sections )
if (propPair.a.ToLower( ) == "content-type")
{
PartProperty.ContentType ct =
MimeParser.ParseContentType(propPair.b);
if ((ct.Boundary != null) && (ct.Boundary != ""))
{
bdryStack.Push(ct.Boundary);
}
}
break;
}
// part boundary line. load the lines of the current part and reset the line
// counter of this new part.
case MimeLineCode.PartBdry:
if (curPartBx != -1)
{
parts.AddNewPart(curPartCode)
.LoadLines(InLines, curPartBx, curPartCx);
}
curPartCx = 0;
curPartBx = -1;
curPartCode = MimePartCode.Content;
currentlyBetweenParts = false;
partIsJustStarting = true;
break;
case MimeLineCode.PartEndBdry:
if (curPartBx != -1)
{
parts.AddNewPart(curPartCode)
.LoadLines(InLines, curPartBx, curPartCx);
}
curPartCx = 0;
curPartBx = -1;
if (bdryStack.IsNotEmpty)
{
bdryStack.Pop( );
}
currentlyBetweenParts = true;
break;
default:
break;
}
// add to range of lines in the current part.
if ((currentlyBetweenParts == false) && (lc != MimeLineCode.PartBdry))
{
if ((partIsJustStarting == true) && (line == ""))
{
}
else
{
++curPartCx;
if (curPartBx == -1)
{
curPartBx = Ix;
}
}
partIsJustStarting = false;
}
}
// load the lines of the final in progress part.
if (curPartBx != -1)
{
parts.AddNewPart(curPartCode)
.LoadLines(InLines, curPartBx, curPartCx);
}
return(parts);
}
// ---------------------- LoadEmail ---------------------------
private void LoadEmail(SocketExchange InEx, System.Int64 InMailDropPosition)
{
// tell the server we want to read the message.
InEx.Send("retr " + InMailDropPosition + PopConstants.CrLf);
InEx.ExpectedResponseCodes =
new ExpectedResponseCodes(PopConstants.Ok, PopConstants.Error);
InEx.SendReceive("retr " + InMailDropPosition + PopConstants.CrLf);
InEx.ThrowIfUnexpectedResponse( );
// -ERR response. no such message number.
if (InEx.ResponseCode == PopConstants.Error)
{
}
else
{
// for now, receive SSL link messages in the same thread.
if (InEx.ConnectedSecureSocket != null)
{
StringBuilder mail = null;
mail = ReceiveMessage_SameThread(InEx);
InEx.LoadResponseMessage(mail.ToString( ));
}
// receive in a background thread.
else
{
StartReceive(InEx);
InEx.LoadResponseMessage(mSockThreadState.sb.ToString( ));
}
}
// parse email ...
mParts = MimeCommon.MessagePartSplitter(InEx.ResponseMessage);
string[] lines = MimeCommon.MessageLineSplitter(InEx.ResponseMessage);
if (1 == 2)
{
mParts = MimeCommon.MessagePartSplitter(lines);
}
mAttachments = null;
MimeAttachment attach = (MimeAttachment)Attachments.FirstAttachment( ).Current;
if (attach != null)
{
attach.SaveAs("c:\\apress\\attachment.txt");
}
if (1 == 2)
{
// dump the header lines of the top part.
InEx.Logger.AddMessage(NetworkRole.Server, "--- start header line dump ---");
MimeTopPart topPart = ( MimeTopPart )mParts.GetTopPart( );
for (int Ix = 0; Ix < topPart.PropertyLines.Length; ++Ix)
{
InEx.Logger.AddMessage(NetworkRole.Server, topPart.PropertyLines[Ix]);
}
for (int Ix = 0; Ix < topPart.MessageLines.Length; ++Ix)
{
InEx.Logger.AddMessage(NetworkRole.Server, topPart.MessageLines[Ix]);
}
InEx.Logger.AddMessage(NetworkRole.Server, "--- end of header line dump ---");
// dump the lines of each part.
foreach (MimeMessagePart part in mParts)
{
InEx.Logger.AddMessage(NetworkRole.Server, "** message part **");
InEx.Logger.AddMessage(NetworkRole.Server, "** property lines **");
foreach (string line in part.PropertyLines)
{
InEx.Logger.AddMessage(NetworkRole.Server, line);
}
InEx.Logger.AddMessage(NetworkRole.Server, "** message lines **");
foreach (string line in part.MessageLines)
{
InEx.Logger.AddMessage(NetworkRole.Server, line);
}
}
InEx.Logger.AddMessage(NetworkRole.Server, "---- end of parts ----------");
}
for (int ix = 0; ix < lines.Length; ++ix)
{
InEx.Logger.AddMessage(NetworkRole.Server, lines[ix]);
}
ParseEmail(lines);
// remove reading pop3State ...
mSockThreadState = null;
}
