/// <summary>
/// Default constructor.
/// </summary>
/// <param name="mimeEntry"></param>
/// <param name="mime"></param>
public MimeEntry(byte[] mimeEntry, MimeParser mime)
{
MemoryStream entryStrm = new MemoryStream(mimeEntry);
m_Headers = MimeParser.ParseHeaders(entryStrm);
m_ContentType = mime.ParseContentType(m_Headers);
m_Entries = new ArrayList();
// != multipart content
if (m_ContentType.ToLower().IndexOf("multipart") == -1)
{
m_CharSet = ParseCharSet(m_Headers);
m_ContentEncoding = ParseEncoding(m_Headers);
m_Data = new byte[entryStrm.Length - entryStrm.Position];
entryStrm.Read(m_Data, 0, m_Data.Length);
}
// multipart content, get nested entries
else
{
long s = (int)entryStrm.Position;
string boundaryID = MimeParser.ParseHeaderFiledSubField("Content-Type:", "boundary", m_Headers);
m_Entries = mime.ParseEntries(entryStrm, (int)entryStrm.Position, boundaryID);
entryStrm.Position = s;
m_Data = new byte[entryStrm.Length - s];
entryStrm.Read(m_Data, 0, m_Data.Length);
}
}
/// <summary>
/// Default constructor.
/// </summary>
/// <param name="mimeEntry"></param>
/// <param name="mime"></param>
public MimeEntry(byte[] mimeEntry,MimeParser mime)
{
MemoryStream entryStrm = new MemoryStream(mimeEntry);
m_Headers = MimeParser.ParseHeaders(entryStrm);
m_ContentType = mime.ParseContentType(m_Headers);
m_Entries = new ArrayList();
// != multipart content
if(m_ContentType.ToLower().IndexOf("multipart") == -1){
m_CharSet = ParseCharSet(m_Headers);
m_ContentEncoding = ParseEncoding(m_Headers);
m_Data = new byte[entryStrm.Length - entryStrm.Position];
entryStrm.Read(m_Data,0,m_Data.Length);
}
// multipart content, get nested entries
else{
long s = (int)entryStrm.Position;
string boundaryID = MimeParser.ParseHeaderFiledSubField("Content-Type:","boundary",m_Headers);
m_Entries = mime.ParseEntries(entryStrm,(int)entryStrm.Position,boundaryID);
entryStrm.Position = s;
m_Data = new byte[entryStrm.Length - s];
entryStrm.Read(m_Data,0,m_Data.Length);
}
}
/// <summary>
/// Parse charset.
/// </summary>
/// <param name="headers"></param>
/// <returns></returns>
private string ParseCharSet(string headers)
{
string charset = MimeParser.ParseHeaderFiledSubField("Content-Type:", "charset", headers);
// charset ends with ; remove it. Is it right place to do or can it be done MimeParser.ParseHeaderFiledSubField
if (charset.EndsWith(";"))
{
charset = charset.Substring(0, charset.Length - 1);
}
if (charset.Length > 0)
{
try{
Encoding.GetEncoding(charset);
return(charset);
}
catch {
return("ascii");
}
}
// If no charset, consider it as ascii
else
{
return("ascii");
}
}
/// <summary>
/// Parse encoding. quoted-printable,7bit,8bit,base64 is supported.
/// </summary>
/// <param name="headers"></param>
/// <returns></returns>
private string ParseEncoding(string headers)
{
string encoding = MimeParser.ParseHeaderField("CONTENT-TRANSFER-ENCODING:", headers);
if (encoding.Length > 0)
{
return(encoding);
}
// If no encoding, consider it as ascii
else
{
return("7bit");
}
}
private Disposition ParseContentDisposition(string headers)
{
string disposition = MimeParser.ParseHeaderField("CONTENT-DISPOSITION:", headers);
if (disposition.ToUpper().IndexOf("ATTACHMENT") > -1)
{
return(Disposition.Attachment);
}
if (disposition.ToUpper().IndexOf("INLINE") > -1)
{
return(Disposition.Inline);
}
return(Disposition.Unknown);
}
/// <summary>
/// Checks if message matches for specified search key.
/// </summary>
/// <param name="searchKey"></param>
/// <param name="searchKeyValue"></param>
/// <param name="messageInfo"></param>
/// <param name="msg"></param>
/// <returns></returns>
public static bool MatchSearchKey(string searchKey,object searchKeyValue,IMAP_Message messageInfo,MimeParser msg)
{
// BEFORE <date>
// Messages whose internal date (disregarding time and timezone)
// is earlier than the specified date.
if(searchKey == "BEFORE"){
if(messageInfo.Date.Date < (DateTime)searchKeyValue){
return true;
}
}
// BODY <string>
// Messages that contain the specified string in the body of the message.
else if(searchKey == "BODY"){
if(msg.BodyText.IndexOf((string)searchKeyValue) > -1){
return true;
}
}
// HEADER <field-name> <string>
// Messages that have a header with the specified field-name (as
// defined in [RFC-2822]) and that contains the specified string
// in the text of the header (what comes after the colon). If the
// string to search is zero-length, this matches all messages that
// have a header line with the specified field-name regardless of
// the contents.
else if(searchKey == "HEADER"){
string[] headerField_value = (string[])searchKeyValue;
string headerFileDValue = Core.CanonicalDecode(MimeParser.ParseHeaderField(headerField_value[0],msg.Headers));
if(headerField_value[1].Length == 0){
return true;
}
else if(headerFileDValue.IndexOf(headerField_value[1]) > -1){
return true;
}
}
// KEYWORD <flag>
// Messages with the specified keyword flag set.
else if(searchKey == "KEYWORD"){
if((messageInfo.Flags & IMAP_Utils.ParseMessageFalgs((string)searchKeyValue)) != 0){
return true;
}
}
// LARGER <n>
// Messages with an [RFC-2822] size larger than the specified number of octets.
else if(searchKey == "LARGER"){
if(messageInfo.Size > Convert.ToInt64(searchKeyValue)){
return true;
}
}
// ON <date>
// Messages whose internal date (disregarding time and timezone)
// is within the specified date.
else if(searchKey == "ON"){
if(messageInfo.Date.Date == (DateTime)searchKeyValue){
return true;
}
}
// SENTBEFORE <date>
// Messages whose [RFC-2822] Date: header (disregarding time and
// timezone) is earlier than the specified date.
else if(searchKey == "SENTBEFORE"){
if(msg.MessageDate.Date < (DateTime)searchKeyValue){
return true;
}
}
// SENTON <date>
// Messages whose [RFC-2822] Date: header (disregarding time and
// timezone) is within the specified date.
else if(searchKey == "SENTON"){
if(msg.MessageDate.Date == (DateTime)searchKeyValue){
return true;
}
}
// SENTSINCE <date>
// Messages whose [RFC-2822] Date: header (disregarding time and
// timezone) is within or later than the specified date.
else if(searchKey == "SENTSINCE"){
if(msg.MessageDate.Date >= (DateTime)searchKeyValue){
return true;
}
}
// SINCE <date>
// Messages whose internal date (disregarding time and timezone)
// is within or later than the specified date.
else if(searchKey == "SINCE"){
if(messageInfo.Date.Date >= (DateTime)searchKeyValue){
return true;
}
}
// SMALLER <n>
// Messages with an [RFC-2822] size smaller than the specified number of octets.
else if(searchKey == "SMALLER"){
if(messageInfo.Size < Convert.ToInt64(searchKeyValue)){
return true;
}
}
// TEXT <string>
// Messages that contain the specified string in the header or body of the message.
else if(searchKey == "TEXT"){
// TODO:
}
// UID <sequence set>
// Messages with unique identifiers corresponding to the specified
// unique identifier set. Sequence set ranges are permitted.
else if(searchKey == "UID"){
if(((string)searchKeyValue).IndexOf(":") > -1){
string[] start_end = ((string)searchKeyValue).Split(':');
if(messageInfo.MessageUID >= Convert.ToInt64(start_end[0]) && messageInfo.MessageUID <= Convert.ToInt64(start_end[1])){
return true;
}
}
else{
if(messageInfo.MessageUID == Convert.ToInt64(searchKeyValue)){
return true;
}
}
}
// UNKEYWORD <flag>
// Messages that do not have the specified keyword flag set.
else if(searchKey == "UNKEYWORD"){
if((messageInfo.Flags & IMAP_Utils.ParseMessageFalgs((string)searchKeyValue)) == 0){
return true;
}
}
return false;
}
private void Fetch(string cmdTag,string argsText,bool uidFetch)
{
/* Rfc 3501 6.4.5 FETCH Command
Arguments: message set
message data item names
Responses: untagged responses: FETCH
Result: OK - fetch completed
NO - fetch error: can't fetch that data
BAD - command unknown or arguments invalid
The FETCH command retrieves data associated with a message in the
mailbox. The data items to be fetched can be either a single atom
or a parenthesized list.
Most data items, identified in the formal syntax under the
msg-att-static rule, are static and MUST NOT change for any
particular message. Other data items, identified in the formal
syntax under the msg-att-dynamic rule, MAY change, either as a
result of a STORE command or due to external events.
For example, if a client receives an ENVELOPE for a
message when it already knows the envelope, it can
safely ignore the newly transmitted envelope.
There are three macros which specify commonly-used sets of data
items, and can be used instead of data items. A macro must be
used by itself, and not in conjunction with other macros or data
items.
ALL
Macro equivalent to: (FLAGS INTERNALDATE RFC822.SIZE ENVELOPE)
FAST
Macro equivalent to: (FLAGS INTERNALDATE RFC822.SIZE)
FULL
Macro equivalent to: (FLAGS INTERNALDATE RFC822.SIZE ENVELOPE
BODY)
The currently defined data items that can be fetched are:
BODY
Non-extensible form of BODYSTRUCTURE.
BODY[<section>]<<partial>>
The text of a particular body section. The section
specification is a set of zero or more part specifiers
delimited by periods. A part specifier is either a part number
or one of the following: HEADER, HEADER.FIELDS,
HEADER.FIELDS.NOT, MIME, and TEXT. An empty section
specification refers to the entire message, including the
header.
Every message has at least one part number. Non-[MIME-IMB]
messages, and non-multipart [MIME-IMB] messages with no
encapsulated message, only have a part 1.
Multipart messages are assigned consecutive part numbers, as
they occur in the message. If a particular part is of type
message or multipart, its parts MUST be indicated by a period
followed by the part number within that nested multipart part.
A part of type MESSAGE/RFC822 also has nested part numbers,
referring to parts of the MESSAGE part's body.
The HEADER, HEADER.FIELDS, HEADER.FIELDS.NOT, and TEXT part
specifiers can be the sole part specifier or can be prefixed by
one or more numeric part specifiers, provided that the numeric
part specifier refers to a part of type MESSAGE/RFC822. The
MIME part specifier MUST be prefixed by one or more numeric
part specifiers.
The HEADER, HEADER.FIELDS, and HEADER.FIELDS.NOT part
specifiers refer to the [RFC-2822] header of the message or of
an encapsulated [MIME-IMT] MESSAGE/RFC822 message.
HEADER.FIELDS and HEADER.FIELDS.NOT are followed by a list of
field-name (as defined in [RFC-2822]) names, and return a
subset of the header. The subset returned by HEADER.FIELDS
contains only those header fields with a field-name that
matches one of the names in the list; similarly, the subset
returned by HEADER.FIELDS.NOT contains only the header fields
with a non-matching field-name. The field-matching is
case-insensitive but otherwise exact. Subsetting does not
exclude the [RFC-2822] delimiting blank line between the header
and the body; the blank line is included in all header fetches,
except in the case of a message which has no body and no blank
line.
The MIME part specifier refers to the [MIME-IMB] header for
this part.
The TEXT part specifier refers to the text body of the message,
omitting the [RFC-2822] header.
Here is an example of a complex message with some of its
part specifiers:
HEADER ([RFC-2822] header of the message)
TEXT ([RFC-2822] text body of the message) MULTIPART/MIXED
1 TEXT/PLAIN
2 APPLICATION/OCTET-STREAM
3 MESSAGE/RFC822
3.HEADER ([RFC-2822] header of the message)
3.TEXT ([RFC-2822] text body of the message) MULTIPART/MIXED
3.1 TEXT/PLAIN
3.2 APPLICATION/OCTET-STREAM
4 MULTIPART/MIXED
4.1 IMAGE/GIF
4.1.MIME ([MIME-IMB] header for the IMAGE/GIF)
4.2 MESSAGE/RFC822
4.2.HEADER ([RFC-2822] header of the message)
4.2.TEXT ([RFC-2822] text body of the message) MULTIPART/MIXED
4.2.1 TEXT/PLAIN
4.2.2 MULTIPART/ALTERNATIVE
4.2.2.1 TEXT/PLAIN
4.2.2.2 TEXT/RICHTEXT
It is possible to fetch a substring of the designated text.
This is done by appending an open angle bracket ("<"), the
octet position of the first desired octet, a period, the
maximum number of octets desired, and a close angle bracket
(">") to the part specifier. If the starting octet is beyond
the end of the text, an empty string is returned.
Any partial fetch that attempts to read beyond the end of the
text is truncated as appropriate. A partial fetch that starts
at octet 0 is returned as a partial fetch, even if this
truncation happened.
Note: This means that BODY[]<0.2048> of a 1500-octet message
will return BODY[]<0> with a literal of size 1500, not
BODY[].
Note: A substring fetch of a HEADER.FIELDS or
HEADER.FIELDS.NOT part specifier is calculated after
subsetting the header.
The \Seen flag is implicitly set; if this causes the flags to
change, they SHOULD be included as part of the FETCH responses.
BODY.PEEK[<section>]<<partial>>
An alternate form of BODY[<section>] that does not implicitly
set the \Seen flag.
BODYSTRUCTURE
The [MIME-IMB] body structure of the message. This is computed
by the server by parsing the [MIME-IMB] header fields in the
[RFC-2822] header and [MIME-IMB] headers.
ENVELOPE
The envelope structure of the message. This is computed by the
server by parsing the [RFC-2822] header into the component
parts, defaulting various fields as necessary.
FLAGS
The flags that are set for this message.
INTERNALDATE
The internal date of the message.
RFC822
Functionally equivalent to BODY[], differing in the syntax of
the resulting untagged FETCH data (RFC822 is returned).
RFC822.HEADER
Functionally equivalent to BODY.PEEK[HEADER], differing in the
syntax of the resulting untagged FETCH data (RFC822.HEADER is
returned).
RFC822.SIZE
The [RFC-2822] size of the message.
RFC822.TEXT
Functionally equivalent to BODY[TEXT], differing in the syntax
of the resulting untagged FETCH data (RFC822.TEXT is returned).
UID
The unique identifier for the message.
Example: C: A654 FETCH 2:4 (FLAGS BODY[HEADER.FIELDS (DATE FROM)])
S: * 2 FETCH ....
S: * 3 FETCH ....
S: * 4 FETCH ....
S: A654 OK FETCH completed
*/
if(!m_Authenticated){
m_pSocket.SendLine(cmdTag + " NO Authenticate first !");
return;
}
if(m_SelectedMailbox.Length == 0){
m_pSocket.SendLine(cmdTag + " NO Select mailbox first !");
return;
}
#region Parse parameters
string[] args = ParseParams(argsText);
if(args.Length != 2){
m_pSocket.SendLine(cmdTag + " BAD Invalid arguments");
return;
}
ArrayList seq_set = ParseMsgNumbersFromSequenceSet(args[0].Trim(),uidFetch);
// Replace macros
string fetchItems = args[1].ToUpper();
fetchItems = fetchItems.Replace("ALL" ,"FLAGS INTERNALDATE RFC822.SIZE ENVELOPE");
fetchItems = fetchItems.Replace("FAST","FLAGS INTERNALDATE RFC822.SIZE");
fetchItems = fetchItems.Replace("FULL","FLAGS INTERNALDATE RFC822.SIZE ENVELOPE BODY");
// If UID FETCH and no UID, we must implicity add it, it's required
if(uidFetch && fetchItems.ToUpper().IndexOf("UID") == -1){
fetchItems += " UID";
}
// ToDo: ??? start parm parsing from left to end in while loop while params parsed or bad param found
bool headersNeeded = false;
bool fullMsgNeeded = false;
// Parse,validate requested fetch items
Hashtable items = new Hashtable();
if(fetchItems.IndexOf("UID") > -1){
items.Add("UID","");
fetchItems = fetchItems.Replace("UID","");
}
if(fetchItems.IndexOf("RFC822.TEXT") > -1){
fullMsgNeeded = true;
items.Add("RFC822.TEXT","");
fetchItems = fetchItems.Replace("RFC822.TEXT","");
}
if(fetchItems.IndexOf("RFC822.SIZE") > -1){
items.Add("RFC822.SIZE","");
fetchItems = fetchItems.Replace("RFC822.SIZE","");
}
if(fetchItems.IndexOf("RFC822.HEADER") > -1){
headersNeeded = true;
items.Add("RFC822.HEADER","");
fetchItems = fetchItems.Replace("RFC822.HEADER","");
}
if(fetchItems.IndexOf("RFC822") > -1){
fullMsgNeeded = true;
items.Add("RFC822","");
fetchItems = fetchItems.Replace("RFC822","");
}
if(fetchItems.IndexOf("INTERNALDATE") > -1){
items.Add("INTERNALDATE","");
fetchItems = fetchItems.Replace("INTERNALDATE","");
}
if(fetchItems.IndexOf("FLAGS") > -1){
items.Add("FLAGS","");
fetchItems = fetchItems.Replace("FLAGS","");
}
if(fetchItems.IndexOf("ENVELOPE") > -1){
headersNeeded = true;
items.Add("ENVELOPE","");
fetchItems = fetchItems.Replace("ENVELOPE","");
}
if(fetchItems.IndexOf("BODYSTRUCTURE") > -1){
fullMsgNeeded = true;
items.Add("BODYSTRUCTURE","");
fetchItems = fetchItems.Replace("BODYSTRUCTURE","");
}
if(fetchItems.IndexOf("BODY.PEEK[") > -1){
int start = fetchItems.IndexOf("BODY.PEEK[") + 10;
string val = fetchItems.Substring(start,fetchItems.IndexOf("]",start) - start).ToUpper().Trim();
// Remove BODY.PEEK[...] from remaining args string.
fetchItems = fetchItems.Substring(fetchItems.IndexOf("]") + 1);
//--- See if partial fetch. For example: BODY.PEEK[]<0.100>
long startPosition = 0;
long maxLength = long.MaxValue;
bool partial = false;
if(fetchItems.StartsWith("<")){
// We got partial fetch, need to get data between <>
string partialArgs = fetchItems.Substring(1,fetchItems.IndexOf(">") - 1);
string[] pArgs = partialArgs.Split('.');
startPosition = Convert.ToInt64(pArgs[0]);
maxLength = Convert.ToInt64(pArgs[1]);
// Remove partial fetch args(<...>) from remaining args string.
fetchItems = fetchItems.Substring(fetchItems.IndexOf(">") + 1);
partial = true;
}
//----------------------------------------------------------------
// We must support only:
// "" - full message
// TEXT - message text
// HEADER - message header
// HEADER.FIELDS - requested message header fields
// HEADER.FIELDS.NOT - message header fields except requested
// number of mime entry - Example: BODY[1];BODY[1.1];BODY[1.1.x. ...]
if(val.Length > 0){
string[] fArgs = ParseParams(val);
// Specified number of mime entry requested
// if(fArgs.Length == 1 && Core.IsNumber(fArgs[0])){
// fullMsgNeeded = true;
// items.Add("BODY.PEEK[NUMBER]",new object[]{partial,startPosition,maxLength,Convert.ToInt32(fArgs[0])});
// }
// else{
switch(fArgs[0].ToUpper())
{
case "TEXT":
fullMsgNeeded = true;
items.Add("BODY.PEEK[TEXT]",new object[]{partial,startPosition,maxLength});
break;
case "HEADER":
headersNeeded = true;
items.Add("BODY.PEEK[HEADER]",new object[]{partial,startPosition,maxLength});
break;
case "HEADER.FIELDS":
if(fArgs.Length == 2){
headersNeeded = true;
items.Add("BODY.PEEK[HEADER.FIELDS]",new object[]{partial,startPosition,maxLength,fArgs[1]});
}
break;
case "HEADER.FIELDS.NOT":
if(fArgs.Length == 2){
headersNeeded = true;
items.Add("BODY.PEEK[HEADER.FIELDS.NOT]",new object[]{partial,startPosition,maxLength,fArgs[1]});
}
break;
default:
// This must be number of mime entry
fullMsgNeeded = true;
items.Add("BODY.PEEK[NUMBER]",new object[]{partial,startPosition,maxLength,fArgs[0]});
break;
// m_pSocket.SendLine(cmdTag + " BAD Invalid fetch-items argument");
// return;
}
// }
}
else{
fullMsgNeeded = true;
items.Add("BODY.PEEK[]",new object[]{partial,startPosition,maxLength});
}
}
// BODY[<section>]<<partial>>
if(fetchItems.IndexOf("BODY[") > -1){
int start = fetchItems.IndexOf("BODY[") + 5;
string val = fetchItems.Substring(start,fetchItems.IndexOf("]",start) - start).ToUpper().Trim();
// Remove BODY[...] from remaining args string.
fetchItems = fetchItems.Substring(fetchItems.IndexOf("]") + 1);
//--- See if partial fetch. For example: BODY[]<0.100>
long startPosition = 0;
long maxLength = long.MaxValue;
bool partial = false;
if(fetchItems.StartsWith("<")){
// We got partial fetch, need to get data between <>
string partialArgs = fetchItems.Substring(1,fetchItems.IndexOf(">") - 1);
string[] pArgs = partialArgs.Split('.');
startPosition = Convert.ToInt64(pArgs[0]);
maxLength = Convert.ToInt64(pArgs[1]);
// Remove partial fetch args(<...>) from remaining args string.
fetchItems = fetchItems.Substring(fetchItems.IndexOf(">") + 1);
partial = true;
}
//----------------------------------------------------------------
// We must support only:
// "" - full message
// TEXT - message text
// HEADER - message header
// HEADER.FIELDS - requested message header fields
// HEADER.FIELDS.NOT - message header fields except requested
// number of mime entry - Example: BODY[1];BODY[1.1];BODY[1.1.x. ...]
if(val.Length > 0){
string[] fArgs = ParseParams(val);
// Specified number of mime entry requested
// if(fArgs.Length == 1 && Core.IsNumber(fArgs[0])){
// fullMsgNeeded = true;
// items.Add("BODY[NUMBER]",new object[]{partial,startPosition,maxLength,Convert.ToInt32(fArgs[0])});
// }
// else{
switch(fArgs[0].ToUpper())
{
case "TEXT":
fullMsgNeeded = true;
items.Add("BODY[TEXT]",new object[]{partial,startPosition,maxLength});
break;
case "HEADER":
headersNeeded = true;
items.Add("BODY[HEADER]",new object[]{partial,startPosition,maxLength});
break;
case "HEADER.FIELDS":
if(fArgs.Length == 2){
headersNeeded = true;
items.Add("BODY[HEADER.FIELDS]",new object[]{partial,startPosition,maxLength,fArgs[1]});
}
break;
case "HEADER.FIELDS.NOT":
if(fArgs.Length == 2){
headersNeeded = true;
items.Add("BODY[HEADER.FIELDS.NOT]",new object[]{partial,startPosition,maxLength,fArgs[1]});
}
break;
default:
// This must be number of mime entry
fullMsgNeeded = true;
items.Add("BODY[NUMBER]",new object[]{partial,startPosition,maxLength,fArgs[0]});
break;
// m_pSocket.SendLine(cmdTag + " BAD Invalid fetch-items argument");
// return;
}
// }
}
else{
fullMsgNeeded = true;
items.Add("BODY[]",new object[]{partial,startPosition,maxLength});
}
}
if(fetchItems.IndexOf("BODY") > -1){
fullMsgNeeded = true;
items.Add("BODY","");
fetchItems = fetchItems.Replace("BODY","");
}
// If length != 0, then contains invalid fetch items
if(fetchItems.Trim().Length > 0){
m_pSocket.SendLine(cmdTag + " BAD Invalid fetch-items argument");
return;
}
#endregion
// ToDo:
// The server should respond with a tagged BAD response to a command that uses a message
// sequence number greater than the number of messages in the selected mailbox. This
// includes "*" if the selected mailbox is empty.
// if(m_Messages.Count == 0 || ){
// SendData(cmdTag + " BAD Sequence number greater than the number of messages in the selected mailbox !\r\n");
// return;
// }
// ToDo: Move to all parts to MimeParse where possible, this avoid multiple decodings
for(int i=0;i<m_Messages.Count;i++){
//
if(seq_set.Contains(i + 1)){
IMAP_Message msg = m_Messages[i];
byte[] buf = null;
MemoryStream reply = new MemoryStream();
// Write fetch start data "* msgNo FETCH ("
buf = Encoding.ASCII.GetBytes("* " + msg.MessageNo + " FETCH (");
reply.Write(buf,0,buf.Length);
byte[] msgData = null;
byte[] msgHeadData = null;
MimeParser parser = null;
// Check if header or data is neccessary. Eg. if only UID wanted, don't get message at all.
if(fullMsgNeeded || headersNeeded){
Message_EventArgs eArgs = m_pServer.OnGetMessage(this,msg,!fullMsgNeeded);
msgData = eArgs.MessageData;
// Headers needed parse headers from msgData
if(headersNeeded){
string headers = InfoControl.Net.Mail.Mime.MimeParser.ParseHeaders(new MemoryStream(msgData));
msgHeadData = Encoding.Default.GetBytes(headers + "\r\n"); // blank line is included in all header fetches
}
parser = new MimeParser(msgData);
}
IMAP_MessageFlags msgFlagsOr = msg.Flags;
// Construct reply here, based on requested fetch items
int nCount = 0;
foreach(string fetchItem in items.Keys){
object[] partArgs = null;
bool partial = false;
long startPosition = 0;
long maxLength = 0;
long lengthToSend = 0;
string partNumber = "";
string headerFields = "";
switch(fetchItem)
{
case "UID":
buf = Encoding.ASCII.GetBytes("UID " + msg.MessageUID);
reply.Write(buf,0,buf.Length);
break;
case "RFC822.TEXT":
// Sets \seen flag
msg.SetFlags(msg.Flags | IMAP_MessageFlags.Seen);
// RFC822.TEXT {size}
// msg text
byte[] f11Data = System.Text.Encoding.ASCII.GetBytes(parser.BodyText);
buf = Encoding.ASCII.GetBytes("RFC822.TEXT {" + f11Data.Length + "}\r\n");
reply.Write(buf,0,buf.Length);
reply.Write(f11Data,0,f11Data.Length);
break;
case "RFC822.SIZE":
// "RFC822.SIZE size
buf = Encoding.ASCII.GetBytes("RFC822.SIZE " + msg.Size);
reply.Write(buf,0,buf.Length);
break;
case "RFC822.HEADER":
// RFC822.HEADER {size}
// msg header data
buf = Encoding.ASCII.GetBytes("RFC822.HEADER {" + msgHeadData.Length + "}\r\n");
reply.Write(buf,0,buf.Length);
reply.Write(msgHeadData,0,msgHeadData.Length);
break;
case "RFC822":
// Sets \seen flag
msg.SetFlags(msg.Flags | IMAP_MessageFlags.Seen);
// RFC822 {size}
// msg data
buf = Encoding.ASCII.GetBytes("RFC822 {" + msgData.Length + "}\r\n");
reply.Write(buf,0,buf.Length);
reply.Write(msgData,0,msgData.Length);
break;
case "INTERNALDATE":
// INTERNALDATE "date"
buf = Encoding.ASCII.GetBytes("INTERNALDATE \"" + msg.Date.ToString("r",System.Globalization.DateTimeFormatInfo.InvariantInfo) + "\"");
reply.Write(buf,0,buf.Length);
break;
case "FLAGS":
buf = Encoding.ASCII.GetBytes("FLAGS (" + msg.FlagsToString() + ")");
reply.Write(buf,0,buf.Length);
break;
case "ENVELOPE":
buf = Encoding.ASCII.GetBytes(FetchHelper.ConstructEnvelope(parser));
reply.Write(buf,0,buf.Length);
break;
case "BODYSTRUCTURE":
// BODYSTRUCTURE ()
buf = Encoding.ASCII.GetBytes(FetchHelper.ConstructBodyStructure(parser,true));
reply.Write(buf,0,buf.Length);
break;
case "BODY.PEEK[]":
// BODY[] {size}
// msg header data
partArgs = (object[])items[fetchItem];
partial = (bool)partArgs[0];
startPosition = (long)partArgs[1];
maxLength = (long)partArgs[2];
lengthToSend = msgData.Length - startPosition;
if(lengthToSend > maxLength){
lengthToSend = maxLength;
}
if(lengthToSend < 0){
lengthToSend = 0;
}
if(partial){
buf = Encoding.ASCII.GetBytes("BODY[]<" + startPosition + "> {" + lengthToSend + "}\r\n");
}
else{
buf = Encoding.ASCII.GetBytes("BODY[] {" + lengthToSend + "}\r\n");
}
reply.Write(buf,0,buf.Length);
reply.Write(msgData,(int)startPosition,(int)lengthToSend);
break;
case "BODY.PEEK[HEADER]":
// BODY[HEADER] {size}
// msg header data
partArgs = (object[])items[fetchItem];
partial = (bool)partArgs[0];
startPosition = (long)partArgs[1];
maxLength = (long)partArgs[2];
lengthToSend = msgHeadData.Length - startPosition;
if(lengthToSend > maxLength){
lengthToSend = maxLength;
}
if(lengthToSend < 0){
lengthToSend = 0;
}
if(partial){
buf = Encoding.ASCII.GetBytes("BODY[HEADER]<" + startPosition + "> {" + lengthToSend + "}\r\n");
}
else{
buf = Encoding.ASCII.GetBytes("BODY[HEADER] {" + lengthToSend + "}\r\n");
}
reply.Write(buf,0,buf.Length);
reply.Write(msgHeadData,(int)startPosition,(int)lengthToSend);
break;
case "BODY.PEEK[HEADER.FIELDS]":
// BODY[HEADER.FIELDS ()] {size}
// msg header data
partArgs = (object[])items[fetchItem];
partial = (bool)partArgs[0];
startPosition = (long)partArgs[1];
maxLength = (long)partArgs[2];
headerFields = (string)partArgs[3];
byte[] fData = Encoding.ASCII.GetBytes(FetchHelper.ParseHeaderFields(headerFields,msgHeadData));
lengthToSend = fData.Length - startPosition;
if(lengthToSend > maxLength){
lengthToSend = maxLength;
}
if(lengthToSend < 0){
lengthToSend = 0;
}
if(partial){
buf = Encoding.ASCII.GetBytes("BODY[HEADER.FIELDS (" + headerFields + ")]<" + startPosition + "> {" + lengthToSend + "}\r\n");
}
else{
buf = Encoding.ASCII.GetBytes("BODY[HEADER.FIELDS (" + headerFields + ")] {" + lengthToSend + "}\r\n");
}
reply.Write(buf,0,buf.Length);
reply.Write(fData,(int)startPosition,(int)lengthToSend);
break;
case "BODY.PEEK[HEADER.FIELDS.NOT]":
// BODY[HEADER.FIELDS.NOT ()] {size}
// msg header data
partArgs = (object[])items[fetchItem];
partial = (bool)partArgs[0];
startPosition = (long)partArgs[1];
maxLength = (long)partArgs[2];
headerFields = (string)partArgs[3];
byte[] f1Data = Encoding.ASCII.GetBytes(FetchHelper.ParseHeaderFieldsNot(headerFields,msgHeadData));
lengthToSend = f1Data.Length - startPosition;
if(lengthToSend > maxLength){
lengthToSend = maxLength;
}
if(lengthToSend < 0){
lengthToSend = 0;
}
if(partial){
buf = Encoding.ASCII.GetBytes("BODY[HEADER.FIELDS.NOT (" + headerFields + ")]<" + startPosition + "> {" + lengthToSend + "}\r\n");
}
else{
buf = Encoding.ASCII.GetBytes("BODY[HEADER.FIELDS.NOT (" + headerFields + ")] {" + lengthToSend + "}\r\n");
}
reply.Write(buf,0,buf.Length);
reply.Write(f1Data,(int)startPosition,(int)lengthToSend);
break;
case "BODY.PEEK[TEXT]":
// BODY[TEXT] {size}
// msg text
partArgs = (object[])items[fetchItem];
partial = (bool)partArgs[0];
startPosition = (long)partArgs[1];
maxLength = (long)partArgs[2];
byte[] f111Data = Encoding.ASCII.GetBytes(parser.BodyText);
lengthToSend = f111Data.Length - startPosition;
if(lengthToSend > maxLength){
lengthToSend = maxLength;
}
if(lengthToSend < 0){
lengthToSend = 0;
}
if(partial){
buf = Encoding.ASCII.GetBytes("BODY[TEXT]<" + startPosition + "> {" + lengthToSend + "}\r\n");
}
else{
buf = Encoding.ASCII.GetBytes("BODY[TEXT] {" + lengthToSend + "}\r\n");
}
reply.Write(buf,0,buf.Length);
reply.Write(f111Data,(int)startPosition,(int)lengthToSend);
break;
case "BODY.PEEK[NUMBER]":
// BODY[no.] {size}
// mime part
partArgs = (object[])items[fetchItem];
partial = (bool)partArgs[0];
startPosition = (long)partArgs[1];
maxLength = (long)partArgs[2];
partNumber = partArgs[3].ToString();
byte[] b1113Data = FetchHelper.ParseMimeEntry(parser,partNumber);
if(b1113Data != null){
lengthToSend = b1113Data.Length - startPosition;
if(lengthToSend > maxLength){
lengthToSend = maxLength;
}
if(lengthToSend < 0){
lengthToSend = 0;
}
if(partial){
buf = Encoding.ASCII.GetBytes("BODY[" + partNumber + "]<" + startPosition + "> {" + lengthToSend + "}\r\n");
}
else{
buf = Encoding.ASCII.GetBytes("BODY[" + partNumber + "] {" + lengthToSend + "}\r\n");
}
reply.Write(buf,0,buf.Length);
reply.Write(b1113Data,(int)startPosition,(int)lengthToSend);
}
else{
// BODY[no.] NIL
buf = Encoding.ASCII.GetBytes("BODY[" + partNumber + "] NIL");
reply.Write(buf,0,buf.Length);
}
break;
case "BODY[]":
// Sets \seen flag
msg.SetFlags(msg.Flags | IMAP_MessageFlags.Seen);
// BODY[] {size}
// msg header data
partArgs = (object[])items[fetchItem];
partial = (bool)partArgs[0];
startPosition = (long)partArgs[1];
maxLength = (long)partArgs[2];
lengthToSend = msgData.Length - startPosition;
if(lengthToSend > maxLength){
lengthToSend = maxLength;
}
if(lengthToSend < 0){
lengthToSend = 0;
}
if(partial){
buf = Encoding.ASCII.GetBytes("BODY[]<" + startPosition + "> {" + lengthToSend + "}\r\n");
}
else{
buf = Encoding.ASCII.GetBytes("BODY[] {" + lengthToSend + "}\r\n");
}
reply.Write(buf,0,buf.Length);
reply.Write(msgData,(int)startPosition,(int)lengthToSend);
break;
case "BODY[HEADER]":
// Sets \seen flag
msg.SetFlags(msg.Flags | IMAP_MessageFlags.Seen);
// BODY[HEADER] {size}
// msg header data
partArgs = (object[])items[fetchItem];
partial = (bool)partArgs[0];
startPosition = (long)partArgs[1];
maxLength = (long)partArgs[2];
lengthToSend = msgHeadData.Length - startPosition;
if(lengthToSend > maxLength){
lengthToSend = maxLength;
}
if(lengthToSend < 0){
lengthToSend = 0;
}
if(partial){
buf = Encoding.ASCII.GetBytes("BODY[HEADER]<" + startPosition + "> {" + lengthToSend + "}\r\n");
}
else{
buf = Encoding.ASCII.GetBytes("BODY[HEADER] {" + lengthToSend + "}\r\n");
}
reply.Write(buf,0,buf.Length);
reply.Write(msgHeadData,(int)startPosition,(int)lengthToSend);
break;
case "BODY[HEADER.FIELDS]":
// Sets \seen flag
msg.SetFlags(msg.Flags | IMAP_MessageFlags.Seen);
// BODY[HEADER.FIELDS ()] {size}
// msg header data
partArgs = (object[])items[fetchItem];
partial = (bool)partArgs[0];
startPosition = (long)partArgs[1];
maxLength = (long)partArgs[2];
headerFields = (string)partArgs[3];
byte[] bData = Encoding.ASCII.GetBytes(FetchHelper.ParseHeaderFields(headerFields,msgHeadData));
lengthToSend = bData.Length - startPosition;
if(lengthToSend > maxLength){
lengthToSend = maxLength;
}
if(lengthToSend < 0){
lengthToSend = 0;
}
if(partial){
buf = Encoding.ASCII.GetBytes("BODY[HEADER.FIELDS (" + headerFields + ")]<" + startPosition + "> {" + lengthToSend + "}\r\n");
}
else{
buf = Encoding.ASCII.GetBytes("BODY[HEADER.FIELDS (" + headerFields + ")] {" + lengthToSend + "}\r\n");
}
reply.Write(buf,0,buf.Length);
reply.Write(bData,(int)startPosition,(int)lengthToSend);
break;
case "BODY[HEADER.FIELDS.NOT]":
// Sets \seen flag
msg.SetFlags(msg.Flags | IMAP_MessageFlags.Seen);
// BODY[HEADER.FIELDS.NOT ()] {size}
// msg header data
partArgs = (object[])items[fetchItem];
partial = (bool)partArgs[0];
startPosition = (long)partArgs[1];
maxLength = (long)partArgs[2];
headerFields = (string)partArgs[3];
byte[] f2Data = Encoding.ASCII.GetBytes(FetchHelper.ParseHeaderFieldsNot(headerFields,msgHeadData));
lengthToSend = f2Data.Length - startPosition;
if(lengthToSend > maxLength){
lengthToSend = maxLength;
}
if(lengthToSend < 0){
lengthToSend = 0;
}
if(partial){
buf = Encoding.ASCII.GetBytes("BODY[HEADER.FIELDS.NOT (" + headerFields + ")]<" + startPosition + "> {" + lengthToSend + "}\r\n");
}
else{
buf = Encoding.ASCII.GetBytes("BODY[HEADER.FIELDS.NOT (" + headerFields + ")] {" + lengthToSend + "}\r\n");
}
reply.Write(buf,0,buf.Length);
reply.Write(f2Data,(int)startPosition,(int)lengthToSend);
break;
case "BODY[TEXT]":
// Sets \seen flag
msg.SetFlags(msg.Flags | IMAP_MessageFlags.Seen);
// BODY[TEXT] {size}
// msg text
partArgs = (object[])items[fetchItem];
partial = (bool)partArgs[0];
startPosition = (long)partArgs[1];
maxLength = (long)partArgs[2];
byte[] f1111Data = Encoding.ASCII.GetBytes(parser.BodyText);
lengthToSend = f1111Data.Length - startPosition;
if(lengthToSend > maxLength){
lengthToSend = maxLength;
}
if(partial){
buf = Encoding.ASCII.GetBytes("BODY[TEXT]<" + startPosition + "> {" + lengthToSend + "}\r\n");
}
else{
buf = Encoding.ASCII.GetBytes("BODY[TEXT] {" + lengthToSend + "}\r\n");
}
reply.Write(buf,0,buf.Length);
reply.Write(f1111Data,(int)startPosition,(int)lengthToSend);
break;
case "BODY[NUMBER]":
// Sets \seen flag
msg.SetFlags(msg.Flags | IMAP_MessageFlags.Seen);
// BODY[no.] {size}
// mime part
partArgs = (object[])items[fetchItem];
partial = (bool)partArgs[0];
startPosition = (long)partArgs[1];
maxLength = (long)partArgs[2];
partNumber = partArgs[3].ToString();
byte[] b113Data = FetchHelper.ParseMimeEntry(parser,partNumber);
if(b113Data != null){
lengthToSend = b113Data.Length - startPosition;
if(lengthToSend > maxLength){
lengthToSend = maxLength;
}
if(lengthToSend < 0){
lengthToSend = 0;
}
if(partial){
buf = Encoding.ASCII.GetBytes("BODY[" + partNumber + "]<" + startPosition + "> {" + lengthToSend + "}\r\n");
}
else{
buf = Encoding.ASCII.GetBytes("BODY[" + partNumber + "] {" + lengthToSend + "}\r\n");
}
reply.Write(buf,0,buf.Length);
reply.Write(b113Data,(int)startPosition,(int)lengthToSend);
}
else{
// BODY[no.] NIL
buf = Encoding.ASCII.GetBytes("BODY[" + partNumber + "] NIL");
reply.Write(buf,0,buf.Length);
}
break;
case "BODY":
// Sets \seen flag
// BODY ()
buf = Encoding.ASCII.GetBytes(FetchHelper.ConstructBodyStructure(parser,false));
reply.Write(buf,0,buf.Length);
break;
}
nCount++;
// Write fetch item separator data " "
// We don't write it for last item
if(nCount < items.Count){
buf = Encoding.ASCII.GetBytes(" ");
reply.Write(buf,0,buf.Length);
}
}
// Write fetch end data ")"
buf = Encoding.ASCII.GetBytes(")\r\n");
reply.Write(buf,0,buf.Length);
// Send fetch reply to client
reply.Position = 0;
m_pSocket.SendData(reply);
// Set message flags here if required or changed
if(((int)IMAP_MessageFlags.Recent & (int)msg.Flags) != 0 || msgFlagsOr != msg.Flags){
msg.SetFlags(msg.Flags & ~IMAP_MessageFlags.Recent);
m_pServer.OnStoreMessageFlags(this,msg);
}
}
}
m_pSocket.SendLine(cmdTag + " OK FETCH completed");
}
//
#region function Search
private void Search(string cmdTag,string argsText,bool uidSearch)
{
/* Rfc 3501 6.4.4 SEARCH Command
Arguments: OPTIONAL [CHARSET] specification
searching criteria (one or more)
Responses: REQUIRED untagged response: SEARCH
Result: OK - search completed
NO - search error: can't search that [CHARSET] or
criteria
BAD - command unknown or arguments invalid
The SEARCH command searches the mailbox for messages that match
the given searching criteria. Searching criteria consist of one
or more search keys. The untagged SEARCH response from the server
contains a listing of message sequence numbers corresponding to
those messages that match the searching criteria.
When multiple keys are specified, the result is the intersection
(AND function) of all the messages that match those keys. For
example, the criteria DELETED FROM "SMITH" SINCE 1-Feb-1994 refers
to all deleted messages from Smith that were placed in the mailbox
since February 1, 1994. A search key can also be a parenthesized
list of one or more search keys (e.g., for use with the OR and NOT
keys).
Server implementations MAY exclude [MIME-IMB] body parts with
terminal content media types other than TEXT and MESSAGE from
consideration in SEARCH matching.
The OPTIONAL [CHARSET] specification consists of the word
"CHARSET" followed by a registered [CHARSET]. It indicates the
[CHARSET] of the strings that appear in the search criteria.
[MIME-IMB] content transfer encodings, and [MIME-HDRS] strings in
[RFC-2822]/[MIME-IMB] headers, MUST be decoded before comparing
text in a [CHARSET] other than US-ASCII. US-ASCII MUST be
supported; other [CHARSET]s MAY be supported.
If the server does not support the specified [CHARSET], it MUST
return a tagged NO response (not a BAD). This response SHOULD
contain the BADCHARSET response code, which MAY list the
[CHARSET]s supported by the server.
In all search keys that use strings, a message matches the key if
the string is a substring of the field. The matching is
case-insensitive.
The defined search keys are as follows. Refer to the Formal
Syntax section for the precise syntactic definitions of the
arguments.
<sequence set>
Messages with message sequence numbers corresponding to the
specified message sequence number set.
ALL
All messages in the mailbox; the default initial key for
ANDing.
ANSWERED
Messages with the \Answered flag set.
BCC <string>
Messages that contain the specified string in the envelope
structure's BCC field.
BEFORE <date>
Messages whose internal date (disregarding time and timezone)
is earlier than the specified date.
BODY <string>
Messages that contain the specified string in the body of the
message.
CC <string>
Messages that contain the specified string in the envelope
structure's CC field.
DELETED
Messages with the \Deleted flag set.
DRAFT
Messages with the \Draft flag set.
FLAGGED
Messages with the \Flagged flag set.
FROM <string>
Messages that contain the specified string in the envelope
structure's FROM field.
HEADER <field-name> <string>
Messages that have a header with the specified field-name (as
defined in [RFC-2822]) and that contains the specified string
in the text of the header (what comes after the colon). If the
string to search is zero-length, this matches all messages that
have a header line with the specified field-name regardless of
the contents.
KEYWORD <flag>
Messages with the specified keyword flag set.
LARGER <n>
Messages with an [RFC-2822] size larger than the specified
number of octets.
NEW
Messages that have the \Recent flag set but not the \Seen flag.
This is functionally equivalent to "(RECENT UNSEEN)".
NOT <search-key>
Messages that do not match the specified search key.
OLD
Messages that do not have the \Recent flag set. This is
functionally equivalent to "NOT RECENT" (as opposed to "NOT
NEW").
ON <date>
Messages whose internal date (disregarding time and timezone)
is within the specified date.
OR <search-key1> <search-key2>
Messages that match either search key.
RECENT
Messages that have the \Recent flag set.
SEEN
Messages that have the \Seen flag set.
SENTBEFORE <date>
Messages whose [RFC-2822] Date: header (disregarding time and
timezone) is earlier than the specified date.
SENTON <date>
Messages whose [RFC-2822] Date: header (disregarding time and
timezone) is within the specified date.
SENTSINCE <date>
Messages whose [RFC-2822] Date: header (disregarding time and
timezone) is within or later than the specified date.
SINCE <date>
Messages whose internal date (disregarding time and timezone)
is within or later than the specified date.
SMALLER <n>
Messages with an [RFC-2822] size smaller than the specified
number of octets.
SUBJECT <string>
Messages that contain the specified string in the envelope
structure's SUBJECT field.
TEXT <string>
Messages that contain the specified string in the header or
body of the message.
TO <string>
Messages that contain the specified string in the envelope
structure's TO field.
UID <sequence set>
Messages with unique identifiers corresponding to the specified
unique identifier set. Sequence set ranges are permitted.
UNANSWERED
Messages that do not have the \Answered flag set.
UNDELETED
Messages that do not have the \Deleted flag set.
UNDRAFT
Messages that do not have the \Draft flag set.
UNFLAGGED
Messages that do not have the \Flagged flag set.
UNKEYWORD <flag>
Messages that do not have the specified keyword flag set.
UNSEEN
Messages that do not have the \Seen flag set.
Example:
C: A282 SEARCH FLAGGED SINCE 1-Feb-1994 NOT FROM "Smith"
S: * SEARCH 2 84 882
S: A282 OK SEARCH completed
C: A283 SEARCH TEXT "string not in mailbox"
S: * SEARCH
S: A283 OK SEARCH completed
C: A284 SEARCH CHARSET UTF-8 TEXT {6}
S: + Continue ### THIS IS UNDUCUMENTED !!!
C: XXXXXX
S: * SEARCH 43
S: A284 OK SEARCH completed
Note: Since this document is restricted to 7-bit ASCII
text, it is not possible to show actual UTF-8 data. The
"XXXXXX" is a placeholder for what would be 6 octets of
8-bit data in an actual transaction.
*/
if(!m_Authenticated){
m_pSocket.SendLine(cmdTag + " NO Authenticate first !");
return;
}
if(m_SelectedMailbox.Length == 0){
m_pSocket.SendLine(cmdTag + " NO Select mailbox first !");
return;
}
// Get Optional charset, if specified
string charset = "ASCII";
// CHARSET charset
if(argsText.ToUpper().StartsWith("CHARSET")){
// Remove CHARSET from argsText
argsText = argsText.Substring(7).Trim();
string charsetValueString = IMAP_Utils.ParseQuotedParam(ref argsText);//argsText.Split(' ')[0];
try{
System.Text.Encoding.GetEncoding(charsetValueString);
charset = charsetValueString;
}
catch{
m_pSocket.SendLine(cmdTag + " NO [BADCHARSET UTF-8] " + charsetValueString + " is not supported");
return;
}
// Remove charset value from args text
// argsText = argsText.Substring(charset.Length).Trim();
}
// Parse search keys
Hashtable searchKeys = new Hashtable();
while(argsText.Length > 0){
// ALL
if(argsText.ToUpper().StartsWith("ALL")){
// Remove ALL from argsText
argsText = argsText.Substring(3).Trim();
// Just eat this keyword
}
// ANSWERED
else if(argsText.ToUpper().StartsWith("ANSWERED")){
// Remove ANSWERED from argsText
argsText = argsText.Substring(8).Trim();
// Move to KEYWORD <flag>
searchKeys.Add("KEYWORD","ANSWERED");
}
// BCC <string> or {<string>.Length} if charset specified
else if(argsText.ToUpper().StartsWith("BCC")){
// Remove BCC from argsText
argsText = argsText.Substring(3).Trim();
string paramValue = "";
if(!argsText.StartsWith("{")){
try{
paramValue = IMAP_Utils.ParseQuotedParam(ref argsText);
}
catch(Exception x){
m_pSocket.SendLine(cmdTag + " NO Invalid BCC <string> value: " + x.Message);
return;
}
}
else{
// get string length, it must be between {}
long count = 0;
if(argsText.StartsWith("{") && argsText.IndexOf('}',1) > -1){
try{
count = Convert.ToInt64(argsText.Substring(1,argsText.IndexOf('}',1) - 1));
}
catch{
m_pSocket.SendLine(cmdTag + " NO Invalid BCC {x} value");
return;
}
}
else{
m_pSocket.SendLine(cmdTag + " NO Invalid BCC value");
return;
}
// Notify connected client that it can continue sending cmdline
m_pSocket.SendLine("+ Continue");
// Read string from socket
MemoryStream ms = new MemoryStream();
ReadReplyCode result = m_pSocket.ReadData(ms,count,true);
if(result != ReadReplyCode.Ok){
throw new Exception(result.ToString());
}
paramValue = System.Text.Encoding.GetEncoding(charset).GetString(ms.ToArray());
// Get next args text
argsText = m_pSocket.ReadLine();
}
// Move to HEADER <field-name> <string>
searchKeys.Add("HEADER",new string[]{"BCC",paramValue});
}
// BEFORE <date>
else if(argsText.ToUpper().StartsWith("BEFORE")){
// Remove BEFORE from argsText
argsText = argsText.Substring(6).Trim();
string dateValueString = argsText.Split(' ')[0];
try{
DateTime dateValue = _SearchHelper.ParseDate(dateValueString);
searchKeys.Add("BEFORE",dateValue);
}
catch{
m_pSocket.SendLine(cmdTag + " NO Invalid BEFORE <date> value");
return;
}
// Remove date value from argsText
argsText = argsText.Substring(dateValueString.Length).Trim();
}
// BODY <string> or {<string>.Length} if charset specified
else if(argsText.ToUpper().StartsWith("BODY")){
// Remove BODY from argsText
argsText = argsText.Substring(4).Trim();
string paramValue = "";
if(!argsText.StartsWith("{")){
try{
paramValue = IMAP_Utils.ParseQuotedParam(ref argsText);
}
catch(Exception x){
m_pSocket.SendLine(cmdTag + " NO Invalid BODY <string> value: " + x.Message);
return;
}
}
else{
// get string length, it must be between {}
long count = 0;
if(argsText.StartsWith("{") && argsText.IndexOf('}',1) > -1){
try{
count = Convert.ToInt64(argsText.Substring(1,argsText.IndexOf('}',1) - 1));
}
catch{
m_pSocket.SendLine(cmdTag + " NO Invalid BODY {x} value");
return;
}
}
else{
m_pSocket.SendLine(cmdTag + " NO Invalid BODY value");
return;
}
// Notify connected client that it can continue sending cmdline
m_pSocket.SendLine("+ Continue");
// Read string from socket
MemoryStream ms = new MemoryStream();
ReadReplyCode result = m_pSocket.ReadData(ms,count,true);
if(result != ReadReplyCode.Ok){
throw new Exception(result.ToString());
}
paramValue = System.Text.Encoding.GetEncoding(charset).GetString(ms.ToArray());
// Get next args text
argsText = m_pSocket.ReadLine();
}
searchKeys.Add("BODY",paramValue);
}
// CC <string> or {<string>.Length} if charset specified
else if(argsText.ToUpper().StartsWith("CC")){
// Remove CC from argsText
argsText = argsText.Substring(2).Trim();
string paramValue = "";
if(!argsText.StartsWith("{")){
try{
paramValue = IMAP_Utils.ParseQuotedParam(ref argsText);
}
catch(Exception x){
m_pSocket.SendLine(cmdTag + " NO Invalid CC <string> value: " + x.Message);
return;
}
}
else{
// get string length, it must be between {}
long count = 0;
if(argsText.StartsWith("{") && argsText.IndexOf('}',1) > -1){
try{
count = Convert.ToInt64(argsText.Substring(1,argsText.IndexOf('}',1) - 1));
}
catch{
m_pSocket.SendLine(cmdTag + " NO Invalid CC {x} value");
return;
}
}
else{
m_pSocket.SendLine(cmdTag + " NO Invalid CC value");
return;
}
// Notify connected client that it can continue sending cmdline
m_pSocket.SendLine("+ Continue");
// Read string from socket
MemoryStream ms = new MemoryStream();
ReadReplyCode result = m_pSocket.ReadData(ms,count,true);
if(result != ReadReplyCode.Ok){
throw new Exception(result.ToString());
}
paramValue = System.Text.Encoding.GetEncoding(charset).GetString(ms.ToArray());
// Get next args text
argsText = m_pSocket.ReadLine();
}
// Move to HEADER <field-name> <string>
searchKeys.Add("HEADER",new string[]{"CC",paramValue});
}
// DELETED
else if(argsText.ToUpper().StartsWith("DELETED")){
// Remove DELETED from argsText
argsText = argsText.Substring(7).Trim();
// Move to KEYWORD <flag>
searchKeys.Add("KEYWORD","DELETED");
}
// DRAFT
else if(argsText.ToUpper().StartsWith("DRAFT")){
// Remove DRAFT from argsText
argsText = argsText.Substring(5).Trim();
// Move to KEYWORD <flag>
searchKeys.Add("KEYWORD","DRAFT");
}
// FLAGGED
else if(argsText.ToUpper().StartsWith("FLAGGED")){
// Remove FLAGGED from argsText
argsText = argsText.Substring(7).Trim();
// Move to KEYWORD <flag>
searchKeys.Add("KEYWORD","FLAGGED");
}
// FROM <string> or {<string>.Length} if charset specified
else if(argsText.ToUpper().StartsWith("FROM")){
// Remove FROM from argsText
argsText = argsText.Substring(4).Trim();
string paramValue = "";
if(!argsText.StartsWith("{")){
try{
paramValue = IMAP_Utils.ParseQuotedParam(ref argsText);
}
catch(Exception x){
m_pSocket.SendLine(cmdTag + " NO Invalid FROM <string> value: " + x.Message);
return;
}
}
else{
// get string length, it must be between {}
long count = 0;
if(argsText.StartsWith("{") && argsText.IndexOf('}',1) > -1){
try{
count = Convert.ToInt64(argsText.Substring(1,argsText.IndexOf('}',1) - 1));
}
catch{
m_pSocket.SendLine(cmdTag + " NO Invalid FROM {x} value");
return;
}
}
else{
m_pSocket.SendLine(cmdTag + " NO Invalid FROM value");
return;
}
// Notify connected client that it can continue sending cmdline
m_pSocket.SendLine("+ Continue");
// Read string from socket
MemoryStream ms = new MemoryStream();
ReadReplyCode result = m_pSocket.ReadData(ms,count,true);
if(result != ReadReplyCode.Ok){
throw new Exception(result.ToString());
}
paramValue = System.Text.Encoding.GetEncoding(charset).GetString(ms.ToArray());
// Get next args text
argsText = m_pSocket.ReadLine();
}
// Move to HEADER <field-name> <string>
searchKeys.Add("HEADER",new string[]{"FROM",paramValue});
}
// HEADER <field-name> <string> or {<string>.Length} if charset specified
else if(argsText.ToUpper().StartsWith("HEADER")){
// Remove HEADER from argsText
argsText = argsText.Substring(6).Trim();
// Get field name
string fieldName = IMAP_Utils.ParseQuotedParam(ref argsText);
string paramValue = "";
if(!argsText.StartsWith("{")){
try{
paramValue = IMAP_Utils.ParseQuotedParam(ref argsText);
}
catch(Exception x){
m_pSocket.SendLine(cmdTag + " NO Invalid HEADER <string> value: " + x.Message);
return;
}
}
else{
// get string length, it must be between {}
long count = 0;
if(argsText.StartsWith("{") && argsText.IndexOf('}') > -1){
try{
count = Convert.ToInt64(argsText.Substring(1,argsText.IndexOf('}') - 1));
}
catch{
m_pSocket.SendLine(cmdTag + " NO Invalid HEADER {x} value");
return;
}
}
else{
m_pSocket.SendLine(cmdTag + " NO Invalid HEADER value");
return;
}
// Notify connected client that it can continue sending cmdline
m_pSocket.SendLine("+ Continue");
// Read string from socket
MemoryStream ms = new MemoryStream();
ReadReplyCode result = m_pSocket.ReadData(ms,count,true);
if(result != ReadReplyCode.Ok){
throw new Exception(result.ToString());
}
paramValue = System.Text.Encoding.GetEncoding(charset).GetString(ms.ToArray());
// Get next args text
argsText = m_pSocket.ReadLine();
}
searchKeys.Add("HEADER",new string[]{fieldName,paramValue});
}
// KEYWORD <flag>
else if(argsText.ToUpper().StartsWith("KEYWORD")){
// Remove KEYWORD from argsText
argsText = argsText.Substring(7).Trim();
// Get flag value
string flagValue = argsText.Split(' ')[0];
searchKeys.Add("KEYWORD",flagValue);
// Remove flag value from argsText
argsText = argsText.Substring(flagValue.Length).Trim();
}
// LARGER <n>
else if(argsText.ToUpper().StartsWith("LARGER")){
// Remove LARGER from argsText
argsText = argsText.Substring(6).Trim();
long lagerValue = 0;
try{
lagerValue = Convert.ToInt64(argsText.Split(' ')[0]);
}
catch{
}
searchKeys.Add("LARGER",lagerValue);
// Remove flag value from argsText
argsText = argsText.Substring(lagerValue.ToString().Length).Trim();
}
// NEW
else if(argsText.ToUpper().StartsWith("NEW")){
// Remove NEW from argsText
argsText = argsText.Substring(3).Trim();
// Move to KEYWORD <flag>
searchKeys.Add("KEYWORD","RECENT");
}
// NOT <search-key>
else if(argsText.ToUpper().StartsWith("NOT")){
// Remove NOT from argsText
argsText = argsText.Substring(3).Trim();
m_pSocket.SendLine(cmdTag + " NO NOT search key isn't supported at moment");
return;
}
// OLD
else if(argsText.ToUpper().StartsWith("OLD")){
// Remove OLD from argsText
argsText = argsText.Substring(3).Trim();
// Move to KEYWORD <flag>
searchKeys.Add("UNKEYWORD","RECENT");
}
// ON <date>
else if(argsText.ToUpper().StartsWith("ON")){
// Remove ON from argsText
argsText = argsText.Substring(2).Trim();
string dateValueString = argsText.Split(' ')[0];
try{
DateTime dateValue = _SearchHelper.ParseDate(dateValueString);
searchKeys.Add("ON",dateValue);
}
catch{
m_pSocket.SendLine(cmdTag + " NO Invalid ON <date> value");
return;
}
// Remove date value from argsText
argsText = argsText.Substring(dateValueString.Length).Trim();
}
// OR <search-key1> <search-key2>
else if(argsText.ToUpper().StartsWith("OR")){
// Remove OR from argsText
argsText = argsText.Substring(2).Trim();
m_pSocket.SendLine(cmdTag + " NO OR search key isn't supported at moment");
return;
}
// RECENT
else if(argsText.ToUpper().StartsWith("RECENT")){
// Remove RECENT from argsText
argsText = argsText.Substring(6).Trim();
// Move to KEYWORD <flag>
searchKeys.Add("KEYWORD","RECENT");
}
// SEEN
else if(argsText.ToUpper().StartsWith("SEEN")){
// Remove SEEN from argsText
argsText = argsText.Substring(4).Trim();
// Move to KEYWORD <flag>
searchKeys.Add("KEYWORD","SEEN");
}
// SENTBEFORE <date>
else if(argsText.ToUpper().StartsWith("SENTBEFORE")){
// Remove SENTBEFORE from argsText
argsText = argsText.Substring(10).Trim();
string dateValueString = argsText.Split(' ')[0];
try{
DateTime dateValue = _SearchHelper.ParseDate(dateValueString);
searchKeys.Add("SENTBEFORE",dateValue);
}
catch{
m_pSocket.SendLine(cmdTag + " NO Invalid SENTBEFORE <date> value");
return;
}
// Remove date value from argsText
argsText = argsText.Substring(dateValueString.Length).Trim();
}
// SENTON <date>
else if(argsText.ToUpper().StartsWith("SENTON")){
// Remove SENTON from argsText
argsText = argsText.Substring(6).Trim();
string dateValueString = argsText.Split(' ')[0];
try{
DateTime dateValue = _SearchHelper.ParseDate(dateValueString);
searchKeys.Add("SENTON",dateValue);
}
catch{
m_pSocket.SendLine(cmdTag + " NO Invalid SENTON <date> value");
return;
}
// Remove date value from argsText
argsText = argsText.Substring(dateValueString.Length).Trim();
}
// SENTSINCE <date>
else if(argsText.ToUpper().StartsWith("SENTSINCE")){
// Remove SENTSINCE from argsText
argsText = argsText.Substring(9).Trim();
string dateValueString = argsText.Split(' ')[0];
try{
DateTime dateValue = _SearchHelper.ParseDate(dateValueString);
searchKeys.Add("SENTSINCE",dateValue);
}
catch{
m_pSocket.SendLine(cmdTag + " NO Invalid SENTSINCE <date> value");
return;
}
// Remove date value from argsText
argsText = argsText.Substring(dateValueString.Length).Trim();
}
// SINCE <date>
else if(argsText.ToUpper().StartsWith("SINCE")){
// Remove SINCE from argsText
argsText = argsText.Substring(5).Trim();
string dateValueString = argsText.Split(' ')[0];
try{
DateTime dateValue = _SearchHelper.ParseDate(dateValueString);
searchKeys.Add("SINCE",dateValue);
}
catch{
m_pSocket.SendLine(cmdTag + " NO Invalid SINCE <date> value");
return;
}
// Remove date value from argsText
argsText = argsText.Substring(dateValueString.Length).Trim();
}
// SMALLER <n>
else if(argsText.ToUpper().StartsWith("SMALLER")){
// Remove SMALLER from argsText
argsText = argsText.Substring(7).Trim();
long smallerValue = 0;
try{
smallerValue = Convert.ToInt64(argsText.Split(' ')[0]);
}
catch{
}
searchKeys.Add("SMALLER",smallerValue);
// Remove flag value from argsText
argsText = argsText.Substring(smallerValue.ToString().Length).Trim();
}
// SUBJECT <string> or {<string>.Length} if charset specified
else if(argsText.ToUpper().StartsWith("SUBJECT")){
// Remove SUBJECT from argsText
argsText = argsText.Substring(7).Trim();
string paramValue = "";
if(!argsText.StartsWith("{")){
try{
paramValue = IMAP_Utils.ParseQuotedParam(ref argsText);
}
catch(Exception x){
m_pSocket.SendLine(cmdTag + " NO Invalid SUBJECT <string> value: " + x.Message);
return;
}
}
else{
// get string length, it must be between {}
long count = 0;
if(argsText.StartsWith("{") && argsText.IndexOf('}',1) > -1){
try{
count = Convert.ToInt64(argsText.Substring(1,argsText.IndexOf('}',1) - 1));
}
catch{
m_pSocket.SendLine(cmdTag + " NO Invalid SUBJECT {x} value");
return;
}
}
else{
m_pSocket.SendLine(cmdTag + " NO Invalid SUBJECT value");
return;
}
// Notify connected client that it can continue sending cmdline
m_pSocket.SendLine("+ Continue");
// Read string from socket
MemoryStream ms = new MemoryStream();
ReadReplyCode result = m_pSocket.ReadData(ms,count,true);
if(result != ReadReplyCode.Ok){
throw new Exception(result.ToString());
}
paramValue = System.Text.Encoding.GetEncoding(charset).GetString(ms.ToArray());
// Get next args text
argsText = m_pSocket.ReadLine();
}
// Move to HEADER <field-name> <string>
searchKeys.Add("HEADER",new string[]{"SUBJECT",paramValue});
}
// TEXT <string> or {<string>.Length} if charset specified
else if(argsText.ToUpper().StartsWith("TEXT")){
// Remove TEXT from argsText
argsText = argsText.Substring(4).Trim();
string paramValue = "";
if(!argsText.StartsWith("{")){
try{
paramValue = IMAP_Utils.ParseQuotedParam(ref argsText);
}
catch(Exception x){
m_pSocket.SendLine(cmdTag + " NO Invalid TEXT <string> value: " + x.Message);
return;
}
}
else{
// get string length, it must be between {}
long count = 0;
if(argsText.StartsWith("{") && argsText.IndexOf('}',1) > -1){
try{
count = Convert.ToInt64(argsText.Substring(1,argsText.IndexOf('}',1) - 1));
}
catch{
m_pSocket.SendLine(cmdTag + " NO Invalid TEXT {x} value");
return;
}
}
else{
m_pSocket.SendLine(cmdTag + " NO Invalid TEXT value");
return;
}
// Notify connected client that it can continue sending cmdline
m_pSocket.SendLine("+ Continue");
// Read string from socket
MemoryStream ms = new MemoryStream();
ReadReplyCode result = m_pSocket.ReadData(ms,count,true);
if(result != ReadReplyCode.Ok){
throw new Exception(result.ToString());
}
paramValue = System.Text.Encoding.GetEncoding(charset).GetString(ms.ToArray());
// Get next args text
argsText = m_pSocket.ReadLine();
}
searchKeys.Add("TEXT",paramValue);
}
// TO <string> or {<string>.Length} if charset specified
else if(argsText.ToUpper().StartsWith("TO")){
// Remove TO from argsText
argsText = argsText.Substring(2).Trim();
string paramValue = "";
if(!argsText.StartsWith("{")){
try{
paramValue = IMAP_Utils.ParseQuotedParam(ref argsText);
}
catch(Exception x){
m_pSocket.SendLine(cmdTag + " NO Invalid TO <string> value: " + x.Message);
return;
}
}
else{
// get string lenght, it must be between {}
long count = 0;
if(argsText.StartsWith("{") && argsText.IndexOf('}',1) > -1){
try{
count = Convert.ToInt64(argsText.Substring(1,argsText.IndexOf('}',1) - 1));
}
catch{
m_pSocket.SendLine(cmdTag + " NO Invalid TO {x} value");
return;
}
}
else{
m_pSocket.SendLine(cmdTag + " NO Invalid TO value");
return;
}
// Notify connected client that it can continue sending cmdline
m_pSocket.SendLine("+ Continue");
// Read string from socket
MemoryStream ms = new MemoryStream();
ReadReplyCode result = m_pSocket.ReadData(ms,count,true);
if(result != ReadReplyCode.Ok){
throw new Exception(result.ToString());
}
paramValue = System.Text.Encoding.GetEncoding(charset).GetString(ms.ToArray());
// Get next args text
argsText = m_pSocket.ReadLine();
}
// Move to HEADER <field-name> <string>
searchKeys.Add("HEADER",new string[]{"TO",paramValue});
}
// UID <sequence set>
else if(argsText.ToUpper().StartsWith("UID")){
// Remove UID from argsText
argsText = argsText.Substring(3).Trim();
string uidValue = argsText.Split(' ')[0];
searchKeys.Add("UID",uidValue);
// Remove uid value from argsText
argsText = argsText.Substring(uidValue.Length).Trim();
}
// UNANSWERED
else if(argsText.ToUpper().StartsWith("UNANSWERED")){
// Remove UNANSWERED from argsText
argsText = argsText.Substring(10).Trim();
// Move to UNKEYWORD <flag>
searchKeys.Add("UNKEYWORD","ANSWERED");
}
// UNDELETED
else if(argsText.ToUpper().StartsWith("UNDELETED")){
// Remove UNDELETED from argsText
argsText = argsText.Substring(9).Trim();
// Move to UNKEYWORD <flag>
searchKeys.Add("UNKEYWORD","DELETED");
}
// UNDRAFT
else if(argsText.ToUpper().StartsWith("UNDRAFT")){
// Remove UNDRAFT from argsText
argsText = argsText.Substring(7).Trim();
// Move to UNKEYWORD <flag>
searchKeys.Add("UNKEYWORD","DRAFT");
}
// UNFLAGGED
else if(argsText.ToUpper().StartsWith("UNFLAGGED")){
// Remove UNFLAGGED from argsText
argsText = argsText.Substring(9).Trim();
// Move to UNKEYWORD <flag>
searchKeys.Add("UNKEYWORD","FLAGGED");
}
// UNKEYWORD <flag>
else if(argsText.ToUpper().StartsWith("UNKEYWORD")){
}
// UNSEEN
else if(argsText.ToUpper().StartsWith("UNSEEN")){
// Remove UNSEEN from argsText
argsText = argsText.Substring(6).Trim();
// Move to UNKEYWORD <flag>
searchKeys.Add("UNKEYWORD","SEEN");
}
// This is is unkown search key
else{
m_pSocket.SendLine(cmdTag + " NO Invalid search key " + argsText.Split(' ')[0]);
return;
}
}
// Just loop messages headers or full messages (depends on search type)
string searchResponse = "* SEARCH";
for(int i=0;i<m_Messages.Count;i++){
IMAP_Message msg = m_Messages[i];
byte[] msgData = null;
Message_EventArgs eArgs = m_pServer.OnGetMessage(this,msg,false);
msgData = eArgs.MessageData;
MimeParser parser = new MimeParser(msgData);
bool matches = true;
foreach(DictionaryEntry ent in searchKeys){
matches = _SearchHelper.MatchSearchKey(ent.Key.ToString(),ent.Value,msg,parser);
if(!matches){
matches = false;
break;
}
}
if(!matches){
continue;
}
// If we reached so far, then message matches search criteria
if(uidSearch){
searchResponse += " " + msg.MessageUID.ToString();
}
else{
searchResponse += " " + msg.MessageNo.ToString();
}
}
searchResponse += "\r\n";
searchResponse += cmdTag + " OK SEARCH completed\r\n";
m_pSocket.SendData(searchResponse);
}
/// <summary>
/// Gets top lines of message.
/// </summary>
/// <param name="nr">Message number which top lines to get.</param>
/// <param name="nLines">Number of lines to get.</param>
public System.Net.Mail.MailMessage GetTopOfMessage(int nr, int nLines)
{
if (!m_Connected)
{
throw new Exception("You must connect first !");
}
if (!m_Authenticated)
{
throw new Exception("You must authenticate first !");
}
streamHelper.Write("TOP " + nr.ToString() + " " + nLines.ToString() + "\r\n");
// Read first line of reply, check if it's ok
string line = streamHelper.ReadToEnd();
if (line.StartsWith("+OK"))
{
MimeParser parser = new MimeParser(Core.DoPeriodHandling(socketStream, false, false).ToArray());
return parser.ToMailMessage();
}
else
{
throw new Exception("Server returned:" + line);
}
}
/// <summary>
/// Constructs FETCH BODY and BODYSTRUCTURE response.
/// </summary>
/// <param name="parser"></param>
/// <param name="bodystructure"></param>
/// <returns></returns>
public static string ConstructBodyStructure(MimeParser parser,bool bodystructure)
{
/* Rfc 3501 7.4.2 BODYSTRUCTURE
For example, a simple text message of 48 lines and 2279 octets
can have a body structure of: ("TEXT" "PLAIN" ("CHARSET"
"US-ASCII") NIL NIL "7BIT" 2279 48)
For example, a two part message consisting of a text and a
BASE64-encoded text attachment can have a body structure of:
(("TEXT" "PLAIN" ("CHARSET" "US-ASCII") NIL NIL "7BIT" 1152
23)("TEXT" "PLAIN" ("CHARSET" "US-ASCII" "NAME" "cc.diff")
"<*****@*****.**>" "Compiler diff"
"BASE64" 4554 73) "MIXED")
// Basic fields for multipart
(nestedMimeEntries) conentSubType
// Extention data for multipart
(conentTypeSubFields) contentDisposition contentLanguage [contentLocation]
contentDisposition - ("disposition" {(subFileds) or NIL}) or NIL
contentType - 'TEXT'
conentSubType - 'PLAIN'
conentTypeSubFields - '("CHARSET" "iso-8859-1" ...)'
contentID - Content-ID field
contentDescription - Content-Description field
contentEncoding - 'quoted-printable'
contentSize - mimeEntry NOT ENCODED data size
[envelope] - NOTE: included only if contentType = "message" !!!
[contentLines] - number of content lines. NOTE: included only if contentType = "text" !!!
// Basic fields for non-multipart
contentType conentSubType (conentTypeSubFields) contentID contentDescription contentEncoding contentSize contentLines
// Extention data for non-multipart
contentDataMd5 contentDisposition contentLanguage [conentLocation]
body language
A string or parenthesized list giving the body language
value as defined in [LANGUAGE-TAGS].
body location
A string list giving the body content URI as defined in [LOCATION].
*/
string str = "";
if(bodystructure){
str += "BODYSTRUCTURE ";
}
else{
str += "BODY ";
}
if(parser.ContentType.ToLower().IndexOf("multipart") > -1){
str += "(";
}
str += ConstructPart(parser.MimeEntries,bodystructure);
if(parser.ContentType.ToLower().IndexOf("multipart") > -1){
// conentSubType
if(parser.ContentType.Split('/').Length == 2){
str += " \"" + parser.ContentType.Split('/')[1].Replace(";","") + "\"";
}
else{
str += " NIL";
}
// Need to add extended fields
if(bodystructure){
str += " ";
// conentTypeSubFields
string longContentType = MimeParser.ParseHeaderField("Content-Type:",parser.Headers);
if(longContentType.IndexOf(";") > -1){
str += "(";
string[] fields = longContentType.Split(';');
for(int i=1;i<fields.Length;i++){
string[] nameValue = fields[i].Replace("\"","").Trim().Split(new char[]{'='},2);
str += "\"" + nameValue[0] + "\" \"" + nameValue[1] + "\"";
if(i < fields.Length - 1){
str += " ";
}
}
str += ") ";
}
// contentDisposition
str += "NIL ";
// contentLanguage
str += "NIL";
}
str += ")";
}
return str;
}
/// <summary>
/// Construct FETCH ENVELOPE response.
/// </summary>
/// <param name="parser"></param>
/// <returns></returns>
public static string ConstructEnvelope(MimeParser parser)
{
/* Rfc 3501 7.4.2
ENVELOPE
A parenthesized list that describes the envelope structure of a
message. This is computed by the server by parsing the
[RFC-2822] header into the component parts, defaulting various
fields as necessary.
The fields of the envelope structure are in the following
order: date, subject, from, sender, reply-to, to, cc, bcc,
in-reply-to, and message-id. The date, subject, in-reply-to,
and message-id fields are strings. The from, sender, reply-to,
to, cc, and bcc fields are parenthesized lists of address
structures.
An address structure is a parenthesized list that describes an
electronic mail address. The fields of an address structure
are in the following order: personal name, [SMTP]
at-domain-list (source route), mailbox name, and host name.
[RFC-2822] group syntax is indicated by a special form of
address structure in which the host name field is NIL. If the
mailbox name field is also NIL, this is an end of group marker
(semi-colon in RFC 822 syntax). If the mailbox name field is
non-NIL, this is a start of group marker, and the mailbox name
field holds the group name phrase.
If the Date, Subject, In-Reply-To, and Message-ID header lines
are absent in the [RFC-2822] header, the corresponding member
of the envelope is NIL; if these header lines are present but
empty the corresponding member of the envelope is the empty
string.
*/
// ((sender))
// ENVELOPE ("date" "subject" from sender reply-to to cc bcc in-reply-to "messageID")
string envelope = "ENVELOPE (";
// date
envelope += "\"" + parser.MessageDate.ToString("r",System.Globalization.DateTimeFormatInfo.InvariantInfo) + "\" ";
// subject
envelope += "\"" + Escape(parser.Subject) + "\" ";
// from
// ToDo: May be multiple senders
InfoControl.Net.Mail.Mime.eAddress adr = new InfoControl.Net.Mail.Mime.eAddress(parser.From);
envelope += "((\"" + Escape(adr.Name) + "\" NIL \"" + Escape(adr.Mailbox) + "\" \"" + Escape(adr.Domain) + "\")) ";
// sender
// ToDo: May be multiple senders
envelope += "((\"" + Escape(adr.Name) + "\" NIL \"" + Escape(adr.Mailbox) + "\" \"" + Escape(adr.Domain) + "\")) ";
// reply-to
string replyTo = MimeParser.ParseHeaderField("reply-to:",parser.Headers);
if(replyTo.Length > 0){
envelope += "(";
foreach(string recipient in replyTo.Split(';')){
InfoControl.Net.Mail.Mime.eAddress adrTo = new InfoControl.Net.Mail.Mime.eAddress(recipient);
envelope += "(\"" + Escape(adrTo.Name) + "\" NIL \"" + Escape(adrTo.Mailbox) + "\" \"" + Escape(adrTo.Domain) + "\") ";
}
envelope = envelope.TrimEnd();
envelope += ") ";
}
else{
envelope += "NIL ";
}
// to
string[] to = parser.To;
envelope += "(";
foreach(string recipient in to){
InfoControl.Net.Mail.Mime.eAddress adrTo = new InfoControl.Net.Mail.Mime.eAddress(recipient);
envelope += "(\"" + Escape(adrTo.Name) + "\" NIL \"" + Escape(adrTo.Mailbox) + "\" \"" + Escape(adrTo.Domain) + "\") ";
}
envelope = envelope.TrimEnd();
envelope += ") ";
// cc
string cc = MimeParser.ParseHeaderField("CC:",parser.Headers);
if(cc.Length > 0){
envelope += "(";
foreach(string recipient in cc.Split(';')){
InfoControl.Net.Mail.Mime.eAddress adrTo = new InfoControl.Net.Mail.Mime.eAddress(recipient);
envelope += "(\"" + Escape(adrTo.Name) + "\" NIL \"" + Escape(adrTo.Mailbox) + "\" \"" + Escape(adrTo.Domain) + "\") ";
}
envelope = envelope.TrimEnd();
envelope += ") ";
}
else{
envelope += "NIL ";
}
// bcc
string bcc = MimeParser.ParseHeaderField("BCC:",parser.Headers);
if(bcc.Length > 0){
envelope += "(";
foreach(string recipient in bcc.Split(';')){
InfoControl.Net.Mail.Mime.eAddress adrTo = new InfoControl.Net.Mail.Mime.eAddress(recipient);
envelope += "(\"" + Escape(adrTo.Name) + "\" NIL \"" + Escape(adrTo.Mailbox) + "\" \"" + Escape(adrTo.Domain) + "\") ";
}
envelope = envelope.TrimEnd();
envelope += ") ";
}
else{
envelope += "NIL ";
}
// in-reply-to
string inReplyTo = MimeParser.ParseHeaderField("in-reply-to:",parser.Headers);
if(inReplyTo.Length > 0){
envelope += "\"" + Escape(inReplyTo) + "\" ";
}
else{
envelope += "NIL ";
}
// message-id
if(parser.MessageID.Length > 0){
envelope += "\"" + Escape(parser.MessageID) + "\"";
}
else{
envelope += "NIL";
}
envelope += ")";
return envelope;
}
/// <summary>
/// Returns requested mime entry data.
/// </summary>
/// <param name="parser"></param>
/// <param name="mimeEntryNo"></param>
/// <returns>Returns requested mime entry data or NULL if requested entri doesn't exist.</returns>
public static byte[] ParseMimeEntry(MimeParser parser,string mimeEntryNo)
{
MimeEntry mEntry = null;
string[] parts = mimeEntryNo.Split('.');
foreach(string part in parts){
int mEntryNo = Convert.ToInt32(part);
if(mEntry == null){
if(mEntryNo > 0 && mEntryNo <= parser.MimeEntries.Count){
mEntry = ((MimeEntry)parser.MimeEntries[mEntryNo - 1]);
}
else{
return null;
}
}
else{
if(mEntryNo > 0 && mEntryNo <= mEntry.MimeEntries.Count){
mEntry = ((MimeEntry)mEntry.MimeEntries[mEntryNo - 1]);
}
else{
return null;
}
}
}
if(mEntry != null){
return mEntry.DataNonDecoded;
}
else{
return null;
}
}
