public eMail GetEMail(string id)
{
MongoDatabase mongoDatabase = this._mongoServer.GetDatabase("email_user_" + this._id);
MongoCollection <eMailEntity> mongoCollection = mongoDatabase.GetCollection <eMailEntity>("mails");
IMongoQuery query = Query <eMailEntity> .Where(e => e.Id == new ObjectId(id));
eMailEntity entity = mongoCollection.FindOne(query);
if (entity != null)
{
eMail mail = new eMail();
mail.SetId(entity.Id.ToString());
mail.SetClientName(entity.ClientName);
mail.SetFrom(entity.MailFrom);
mail.SetMessage(entity.Message);
mail.SetRecipient(entity.RecipientTo);
mail.SetSubject(entity.Subject);
mail.SetHeaderFrom(entity.HeaderFrom);
mail.SetHeaderTo(entity.HeaderTo);
mail.SetTime(entity.Time);
return(mail);
}
return(null);
}
public List <eMail> GetEmails(int offset, int limit)
{
List <eMail> eMails = new List <eMail>();
MongoDatabase mongoDatabase = this._mongoServer.GetDatabase("email_user_" + this._id);
MongoCollection <eMailEntity> mongoCollection = mongoDatabase.GetCollection <eMailEntity>("mails");
//IMongoQuery query = Query<eMailEntity>.Where(e => e.RecipientTo == this.eMail);
//MongoCursor<eMailEntity> mongoCursor = mongoCollection.Find(query).SetSkip(offset).SetLimit(limit);
MongoCursor <eMailEntity> mongoCursor = mongoCollection.FindAll().SetSkip(offset).SetLimit(limit);
foreach (eMailEntity entity in mongoCursor)
{
eMail mail = new eMail();
mail.SetId(entity.Id.ToString());
mail.SetClientName(entity.ClientName);
mail.SetFrom(entity.MailFrom);
mail.SetMessage(entity.Message);
mail.SetRecipient(entity.RecipientTo);
mail.SetSubject(entity.Subject);
mail.SetHeaderFrom(entity.HeaderFrom);
mail.SetHeaderTo(entity.HeaderTo);
mail.SetTime(entity.Time);
eMails.Add(mail);
}
return(eMails);
}
private void Mail(string rawUrl, NameValueCollection queryString)
{
if (!this.User.IsLoggedIn)
{
throw new UnauthorizedAccessException("access denied");
}
XmlNode XmlRoot = this._doc.GetElementsByTagName(this._xmlRoot).Item(0);
XmlElement XmlMail = this._doc.CreateElement("mail");
rawUrl = Regex.Replace(rawUrl.Replace("/mail/", ""), "\\?.*", "", RegexOptions.Compiled);
switch (rawUrl)
{
case "get":
if (queryString["id"] != null && queryString["id"] != String.Empty)
{
eMail mail = this.User.GetEMail(queryString["id"]);
if (mail != null)
{
XmlMail.SetAttribute("from", mail.MailFrom);
XmlMail.SetAttribute("to", mail.RecipientTo);
XmlMail.SetAttribute("subject", mail.Subject);
XmlElement XmlRecipients = this._doc.CreateElement("recipients");
XmlMail.AppendChild(XmlRecipients);
XmlElement XmlMessage = this._doc.CreateElement("message");
XmlMessage.InnerText = mail.Message;
XmlMail.AppendChild(XmlMessage);
}
}
break;
case "write":
if (this.Request.HttpMethod == "POST")
{
using (HttpPostRequest.HttpPostRequest postRequest = new HttpPostRequest.HttpPostRequest(this.Request)) {
string toEMail = String.Empty;
string subject = String.Empty;
string message = String.Empty;
if (postRequest.Parameters["email"] != null)
{
toEMail = postRequest.Parameters["email"];
}
if (postRequest.Parameters["subject"] != null)
{
subject = postRequest.Parameters["subject"];
}
if (postRequest.Parameters["message"] != null)
{
message = postRequest.Parameters["message"];
}
eMail newEMail = new eMail();
newEMail.SetFrom(this.User.eMail);
newEMail.SetRecipient(toEMail);
newEMail.SetSubject(subject);
newEMail.SetMessage(message);
XmlMail.SetAttribute("from", newEMail.MailFrom);
XmlMail.SetAttribute("to", newEMail.RecipientTo);
XmlMail.SetAttribute("subject", newEMail.Subject);
XmlElement XmlRecipients = this._doc.CreateElement("recipients");
/*
* foreach(string recipient in newEMail.Recipients) {
* XmlElement XmlRecipient = this._doc.CreateElement("recipient");
* XmlRecipient.SetAttribute("email", recipient);
* XmlRecipients.AppendChild(XmlRecipient);
* }
*/
XmlMail.AppendChild(XmlRecipients);
XmlElement XmlMessage = this._doc.CreateElement("message");
XmlMessage.InnerText = newEMail.Message;
XmlMail.AppendChild(XmlMessage);
this.User.AddEMail(newEMail);
newEMail.Send();
}
}
break;
}
XmlRoot.AppendChild(XmlMail);
}
public SmtpServer(TcpClient client, int sslPort) : base(client, sslPort)
{
bool dataStarted = false;
string mailMessage = String.Empty;
eMail mail = new eMail();
this.Connected += (object sender, TcpRequestEventArgs e) => {
if (this.Verbose && e.RemoteEndPoint != null && e.LocalEndPoint != null)
{
logger.Debug("connected from remote [{0}:{1}] to local [{2}:{3}]",
e.RemoteEndPoint.Address.ToString(),
e.RemoteEndPoint.Port,
e.LocalEndPoint.Address.ToString(),
e.LocalEndPoint.Port
);
}
this.SendMessage("service ready", 220);
};
this.Disconnected += (object sender, TcpRequestEventArgs e) => {
if (this.Verbose && e.RemoteEndPoint != null && e.LocalEndPoint != null)
{
logger.Debug("disconnected from remote [{0}:{1}] to local [{2}:{3}]",
e.RemoteEndPoint.Address.ToString(),
e.RemoteEndPoint.Port,
e.LocalEndPoint.Address.ToString(),
e.LocalEndPoint.Port
);
}
};
this.LineReceived += (object sender, TcpLineReceivedEventArgs e) => {
logger.Info(String.Format("[{0}:{1}] to [{2}:{3}] Received Line: \"{4}\"", this._remoteEndPoint.Address.ToString(), this._remoteEndPoint.Port, this._localEndPoint.Address.ToString(), this._localEndPoint.Port, e.Line));
switch (this._state)
{
case State.AuthenticateLoginUsername:
this._temporaryVariables["username"] = Encoding.UTF8.GetString(Convert.FromBase64String(e.Line)).Trim();
if (this._temporaryVariables["username"] != String.Empty)
{
this._state = State.AuthenticateLoginPassword;
if (User.NameExists(this._temporaryVariables["username"]) || User.EMailExists(this._temporaryVariables["username"]))
{
this.SendMessage(Convert.ToBase64String(Encoding.UTF8.GetBytes("Password:"******"5.7.8 Authentication credentials invalid", 535);
}
}
else
{
this._temporaryVariables.Remove("username");
this._state = State.Default;
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
break;
case State.AuthenticateLoginPassword:
this._temporaryVariables["password"] = Encoding.UTF8.GetString(Convert.FromBase64String(e.Line)).Trim();
this._state = State.Default;
if (this._temporaryVariables["password"] != String.Empty)
{
string username = this._temporaryVariables["username"];
string password = this._temporaryVariables["password"];
this._temporaryVariables.Remove("username");
this._temporaryVariables.Remove("password");
if (this._user.RefreshByUsernamePassword(username, password) || this._user.RefreshByEMailPassword(username, password))
{
this.SendMessage("2.7.0 Authentication Succeeded", 235);
}
else
{
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
}
else
{
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
break;
case State.AuthenticateCramMD5:
List <string> wordsCramMD5 = this.GetWordsFromBase64EncodedLine(e.Line);
this._state = State.Default;
if (wordsCramMD5.Count == 1)
{
string[] splittedWords = wordsCramMD5[0].Split(new char[] { ' ' });
if (splittedWords.Length == 2)
{
bool nameExists = User.NameExists(splittedWords[0]);
bool eMailExists = User.EMailExists(splittedWords[0]);
if (nameExists || eMailExists)
{
string userId = (nameExists) ? User.GetIdByName(splittedWords[0]) : User.GetIdByEMail(splittedWords[0]);
User tmpUser = new User();
if (tmpUser.RefreshById(userId))
{
string calculatedDigest = this.CalculateCramMD5Digest(tmpUser.Password, this._currentCramMD5Challenge);
if (calculatedDigest == splittedWords[1])
{
this._user = tmpUser;
this.SendMessage("2.7.0 Authentication Succeeded", 235);
}
else
{
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
}
else
{
this.SendMessage("4.7.0 Temporary authentication failure", 454);
}
}
else
{
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
}
else
{
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
}
else
{
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
this._currentCramMD5Challenge = String.Empty;
break;
case State.Default:
default:
if (!dataStarted)
{
if (e.Line.StartsWith("HELO "))
{
mail.SetClientName(e.Line.Substring(5));
this.SendMessage("OK", 250);
}
else if (e.Line.StartsWith("EHLO "))
{
mail.SetClientName(e.Line.Substring(5));
this.SendMessage("Hello " + mail.ClientName + " [" + this._remoteEndPoint.Address.ToString() + "]", "250-localhost");
if (!this.SslIsActive)
{
string capabilities = "LOGIN";
capabilities += " PLAIN CRAM-MD5";
this.SendMessage(capabilities, "250-AUTH");
this.SendMessage("STARTTLS", 250);
}
else
{
string capabilities = "AUTH LOGIN";
capabilities += " PLAIN CRAM-MD5";
this.SendMessage(capabilities, 250);
}
}
else if (e.Line.StartsWith("AUTH "))
{
Match authMatch = Regex.Match(e.Line, @"^AUTH\s+(PLAIN|CRAM-MD5|LOGIN)(.*)?", RegexOptions.IgnoreCase);
if (authMatch.Success)
{
switch (authMatch.Groups[1].Value.ToUpper())
{
case "PLAIN":
List <string> words = new List <string>();
try {
words = this.GetWordsFromBase64EncodedLine(authMatch.Groups[2].Value);
} catch (Exception) {
}
this._state = State.Default;
if (words.Count == 2)
{
if (words[0] != String.Empty && words[1] != String.Empty)
{
if (this._user.RefreshByUsernamePassword(words[0], words[1]) || this._user.RefreshByEMailPassword(words[0], words[1]))
{
this.SendMessage("2.7.0 Authentication Succeeded", 235);
}
else
{
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
}
else
{
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
}
else
{
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
break;
case "LOGIN":
this._state = State.AuthenticateLoginUsername;
this.SendMessage(Convert.ToBase64String(Encoding.UTF8.GetBytes("Username:"******"CRAM-MD5":
this._state = State.AuthenticateCramMD5;
string base64EncodedCramMD5Challenge = this.CalculateOneTimeBase64Challenge("localhost.de");
this._currentCramMD5Challenge = Encoding.UTF8.GetString(Convert.FromBase64String(base64EncodedCramMD5Challenge));
this.SendMessage(base64EncodedCramMD5Challenge, 334);
break;
default:
this.SendMessage("Unrecognized authentication type", 504);
break;
}
}
}
else if (e.Line.StartsWith("MAIL FROM:"))
{
string email = e.Line.Substring(10);
try {
mail.SetFrom(email);
this.SendMessage("OK", 250);
} catch (FormatException) {
this.SendMessage("BAD <" + email + ">... Denied due to invalid email-format", 555);
}
}
else if (e.Line.StartsWith("RCPT TO:"))
{
mail.SetRecipient(e.Line.Substring(8));
this.SendMessage("OK", 250);
}
else if (e.Line.StartsWith("STARTTLS"))
{
if (e.Line.Trim() == "STARTTLS")
{
this.SendMessage("Ready to start TLS", 220);
if (!this.StartTls())
{
this.SendMessage("TLS not available due to temporary reason", 454);
}
}
else
{
this.SendMessage("Syntax error (no parameters allowed)", 501);
}
}
else if (e.Line == "DATA")
{
this.SendMessage("start mail input", 354);
dataStarted = true;
}
else if (e.Line == "QUIT")
{
if (eMailServer.Options.Verbose)
{
logger.Debug("[{0}:{1}] to [{2}:{3}] quit connection", this._localEndPoint.Address.ToString(), this._localEndPoint.Port, this._remoteEndPoint.Address.ToString(), this._remoteEndPoint.Port);
}
this.Close();
return;
}
else
{
this.SendMessage("Syntax error, command unrecognized", 500);
if (eMailServer.Options.Verbose)
{
logger.Debug("[{0}:{1}] to [{2}:{3}] unknown command: {2}", this._remoteEndPoint.Address.ToString(), this._remoteEndPoint.Port, this._localEndPoint.Address.ToString(), this._localEndPoint.Port, e.Line);
}
}
}
else
{
if (e.Line == ".")
{
mailMessage = mailMessage.Trim();
logger.Info("[{0}:{1}] to [{2}:{3}] eMail data received: {2}", this._remoteEndPoint.Address.ToString(), this._remoteEndPoint.Port, mailMessage, this._localEndPoint.Address.ToString(), this._localEndPoint.Port);
dataStarted = false;
mail.ParseData(mailMessage);
if (mail.IsValid)
{
if (this._user.IsLoggedIn && User.EMailExists(mail.MailFrom))
{
mail.SetUser(this._user);
mail.SetFolder("SENT");
}
else
{
mail.SetFolder("INBOX");
}
mail.SaveToMongoDB();
}
else
{
logger.Error("received message is invalid for saving to database.");
}
this.SendMessage("OK", 250);
}
else
{
mailMessage += e.Line + "\r\n";
}
}
break;
}
};
}
public eMail GetEMail(string id) {
MongoDatabase mongoDatabase = this._mongoServer.GetDatabase("email_user_" + this._id);
MongoCollection<eMailEntity> mongoCollection = mongoDatabase.GetCollection<eMailEntity>("mails");
IMongoQuery query = Query<eMailEntity>.Where(e => e.Id == new ObjectId(id));
eMailEntity entity = mongoCollection.FindOne(query);
if (entity != null) {
eMail mail = new eMail();
mail.SetId(entity.Id.ToString());
mail.SetClientName(entity.ClientName);
mail.SetFrom(entity.MailFrom);
mail.SetMessage(entity.Message);
mail.SetRecipient(entity.RecipientTo);
mail.SetSubject(entity.Subject);
mail.SetHeaderFrom(entity.HeaderFrom);
mail.SetHeaderTo(entity.HeaderTo);
mail.SetTime(entity.Time);
return mail;
}
return null;
}
public List<eMail> GetEmails(int offset, int limit) {
List<eMail> eMails = new List<eMail>();
MongoDatabase mongoDatabase = this._mongoServer.GetDatabase("email_user_" + this._id);
MongoCollection<eMailEntity> mongoCollection = mongoDatabase.GetCollection<eMailEntity>("mails");
//IMongoQuery query = Query<eMailEntity>.Where(e => e.RecipientTo == this.eMail);
//MongoCursor<eMailEntity> mongoCursor = mongoCollection.Find(query).SetSkip(offset).SetLimit(limit);
MongoCursor<eMailEntity> mongoCursor = mongoCollection.FindAll().SetSkip(offset).SetLimit(limit);
foreach(eMailEntity entity in mongoCursor) {
eMail mail = new eMail();
mail.SetId(entity.Id.ToString());
mail.SetClientName(entity.ClientName);
mail.SetFrom(entity.MailFrom);
mail.SetMessage(entity.Message);
mail.SetRecipient(entity.RecipientTo);
mail.SetSubject(entity.Subject);
mail.SetHeaderFrom(entity.HeaderFrom);
mail.SetHeaderTo(entity.HeaderTo);
mail.SetTime(entity.Time);
eMails.Add(mail);
}
return eMails;
}
private void Mail(string rawUrl, NameValueCollection queryString) {
if (!this.User.IsLoggedIn) {
throw new UnauthorizedAccessException("access denied");
}
XmlNode XmlRoot = this._doc.GetElementsByTagName(this._xmlRoot).Item(0);
XmlElement XmlMail = this._doc.CreateElement("mail");
rawUrl = Regex.Replace(rawUrl.Replace("/mail/", ""), "\\?.*", "", RegexOptions.Compiled);
switch(rawUrl) {
case "get":
if (queryString["id"] != null && queryString["id"] != String.Empty) {
eMail mail = this.User.GetEMail(queryString["id"]);
if (mail != null) {
XmlMail.SetAttribute("from", mail.MailFrom);
XmlMail.SetAttribute("to", mail.RecipientTo);
XmlMail.SetAttribute("subject", mail.Subject);
XmlElement XmlRecipients = this._doc.CreateElement("recipients");
XmlMail.AppendChild(XmlRecipients);
XmlElement XmlMessage = this._doc.CreateElement("message");
XmlMessage.InnerText = mail.Message;
XmlMail.AppendChild(XmlMessage);
}
}
break;
case "write":
if (this.Request.HttpMethod == "POST") {
using(HttpPostRequest.HttpPostRequest postRequest = new HttpPostRequest.HttpPostRequest(this.Request)) {
string toEMail = String.Empty;
string subject = String.Empty;
string message = String.Empty;
if (postRequest.Parameters["email"] != null) {
toEMail = postRequest.Parameters["email"];
}
if (postRequest.Parameters["subject"] != null) {
subject = postRequest.Parameters["subject"];
}
if (postRequest.Parameters["message"] != null) {
message = postRequest.Parameters["message"];
}
eMail newEMail = new eMail();
newEMail.SetFrom(this.User.eMail);
newEMail.SetRecipient(toEMail);
newEMail.SetSubject(subject);
newEMail.SetMessage(message);
XmlMail.SetAttribute("from", newEMail.MailFrom);
XmlMail.SetAttribute("to", newEMail.RecipientTo);
XmlMail.SetAttribute("subject", newEMail.Subject);
XmlElement XmlRecipients = this._doc.CreateElement("recipients");
/*
foreach(string recipient in newEMail.Recipients) {
XmlElement XmlRecipient = this._doc.CreateElement("recipient");
XmlRecipient.SetAttribute("email", recipient);
XmlRecipients.AppendChild(XmlRecipient);
}
*/
XmlMail.AppendChild(XmlRecipients);
XmlElement XmlMessage = this._doc.CreateElement("message");
XmlMessage.InnerText = newEMail.Message;
XmlMail.AppendChild(XmlMessage);
this.User.AddEMail(newEMail);
newEMail.Send();
}
}
break;
}
XmlRoot.AppendChild(XmlMail);
}
public SmtpServer(TcpClient client, int sslPort) : base(client, sslPort) {
bool dataStarted = false;
string mailMessage = String.Empty;
eMail mail = new eMail();
this.Connected += (object sender, TcpRequestEventArgs e) => {
if (this.Verbose && e.RemoteEndPoint != null && e.LocalEndPoint != null) {
logger.Debug("connected from remote [{0}:{1}] to local [{2}:{3}]",
e.RemoteEndPoint.Address.ToString(),
e.RemoteEndPoint.Port,
e.LocalEndPoint.Address.ToString(),
e.LocalEndPoint.Port
);
}
this.SendMessage("service ready", 220);
};
this.Disconnected += (object sender, TcpRequestEventArgs e) => {
if (this.Verbose && e.RemoteEndPoint != null && e.LocalEndPoint != null) {
logger.Debug("disconnected from remote [{0}:{1}] to local [{2}:{3}]",
e.RemoteEndPoint.Address.ToString(),
e.RemoteEndPoint.Port,
e.LocalEndPoint.Address.ToString(),
e.LocalEndPoint.Port
);
}
};
this.LineReceived += (object sender, TcpLineReceivedEventArgs e) => {
logger.Info(String.Format("[{0}:{1}] to [{2}:{3}] Received Line: \"{4}\"", this._remoteEndPoint.Address.ToString(), this._remoteEndPoint.Port, this._localEndPoint.Address.ToString(), this._localEndPoint.Port, e.Line));
switch(this._state) {
case State.AuthenticateLoginUsername:
this._temporaryVariables["username"] = Encoding.UTF8.GetString(Convert.FromBase64String(e.Line)).Trim();
if (this._temporaryVariables["username"] != String.Empty) {
this._state = State.AuthenticateLoginPassword;
if (User.NameExists(this._temporaryVariables["username"]) || User.EMailExists(this._temporaryVariables["username"])) {
this.SendMessage(Convert.ToBase64String(Encoding.UTF8.GetBytes("Password:"******"5.7.8 Authentication credentials invalid", 535);
}
} else {
this._temporaryVariables.Remove("username");
this._state = State.Default;
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
break;
case State.AuthenticateLoginPassword:
this._temporaryVariables["password"] = Encoding.UTF8.GetString(Convert.FromBase64String(e.Line)).Trim();
this._state = State.Default;
if (this._temporaryVariables["password"] != String.Empty) {
string username = this._temporaryVariables["username"];
string password = this._temporaryVariables["password"];
this._temporaryVariables.Remove("username");
this._temporaryVariables.Remove("password");
if (this._user.RefreshByUsernamePassword(username, password) || this._user.RefreshByEMailPassword(username, password)) {
this.SendMessage("2.7.0 Authentication Succeeded", 235);
} else {
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
} else {
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
break;
case State.AuthenticateCramMD5:
List<string> wordsCramMD5 = this.GetWordsFromBase64EncodedLine(e.Line);
this._state = State.Default;
if (wordsCramMD5.Count == 1) {
string[] splittedWords = wordsCramMD5[0].Split(new char[] {' '});
if (splittedWords.Length == 2) {
bool nameExists = User.NameExists(splittedWords[0]);
bool eMailExists = User.EMailExists(splittedWords[0]);
if (nameExists || eMailExists) {
string userId = (nameExists) ? User.GetIdByName(splittedWords[0]) : User.GetIdByEMail(splittedWords[0]);
User tmpUser = new User();
if (tmpUser.RefreshById(userId)) {
string calculatedDigest = this.CalculateCramMD5Digest(tmpUser.Password, this._currentCramMD5Challenge);
if (calculatedDigest == splittedWords[1]) {
this._user = tmpUser;
this.SendMessage("2.7.0 Authentication Succeeded", 235);
} else {
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
} else {
this.SendMessage("4.7.0 Temporary authentication failure", 454);
}
} else {
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
} else {
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
} else {
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
this._currentCramMD5Challenge = String.Empty;
break;
case State.Default:
default:
if (!dataStarted) {
if (e.Line.StartsWith("HELO ")) {
mail.SetClientName(e.Line.Substring(5));
this.SendMessage("OK", 250);
} else if (e.Line.StartsWith("EHLO ")) {
mail.SetClientName(e.Line.Substring(5));
this.SendMessage("Hello " + mail.ClientName + " [" + this._remoteEndPoint.Address.ToString() + "]", "250-localhost");
if (!this.SslIsActive) {
string capabilities = "LOGIN";
capabilities += " PLAIN CRAM-MD5";
this.SendMessage(capabilities, "250-AUTH");
this.SendMessage("STARTTLS", 250);
} else {
string capabilities = "AUTH LOGIN";
capabilities += " PLAIN CRAM-MD5";
this.SendMessage(capabilities, 250);
}
} else if (e.Line.StartsWith("AUTH ")) {
Match authMatch = Regex.Match(e.Line, @"^AUTH\s+(PLAIN|CRAM-MD5|LOGIN)(.*)?", RegexOptions.IgnoreCase);
if (authMatch.Success) {
switch(authMatch.Groups[1].Value.ToUpper()) {
case "PLAIN":
List<string> words = new List<string>();
try {
words = this.GetWordsFromBase64EncodedLine(authMatch.Groups[2].Value);
} catch(Exception) {
}
this._state = State.Default;
if (words.Count == 2) {
if (words[0] != String.Empty && words[1] != String.Empty) {
if (this._user.RefreshByUsernamePassword(words[0], words[1]) || this._user.RefreshByEMailPassword(words[0], words[1])) {
this.SendMessage("2.7.0 Authentication Succeeded", 235);
} else {
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
} else {
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
} else {
this.SendMessage("5.7.8 Authentication credentials invalid", 535);
}
break;
case "LOGIN":
this._state = State.AuthenticateLoginUsername;
this.SendMessage(Convert.ToBase64String(Encoding.UTF8.GetBytes("Username:"******"CRAM-MD5":
this._state = State.AuthenticateCramMD5;
string base64EncodedCramMD5Challenge = this.CalculateOneTimeBase64Challenge("localhost.de");
this._currentCramMD5Challenge = Encoding.UTF8.GetString(Convert.FromBase64String(base64EncodedCramMD5Challenge));
this.SendMessage(base64EncodedCramMD5Challenge, 334);
break;
default:
this.SendMessage("Unrecognized authentication type", 504);
break;
}
}
} else if (e.Line.StartsWith("MAIL FROM:")) {
string email = e.Line.Substring(10);
try {
mail.SetFrom(email);
this.SendMessage("OK", 250);
} catch(FormatException) {
this.SendMessage("BAD <" + email + ">... Denied due to invalid email-format", 555);
}
} else if (e.Line.StartsWith("RCPT TO:")) {
mail.SetRecipient(e.Line.Substring(8));
this.SendMessage("OK", 250);
} else if (e.Line.StartsWith("STARTTLS")) {
if (e.Line.Trim() == "STARTTLS") {
this.SendMessage("Ready to start TLS", 220);
if (!this.StartTls()) {
this.SendMessage("TLS not available due to temporary reason", 454);
}
} else {
this.SendMessage("Syntax error (no parameters allowed)", 501);
}
} else if (e.Line == "DATA") {
this.SendMessage("start mail input", 354);
dataStarted = true;
} else if (e.Line == "QUIT") {
if (eMailServer.Options.Verbose) {
logger.Debug("[{0}:{1}] to [{2}:{3}] quit connection", this._localEndPoint.Address.ToString(), this._localEndPoint.Port, this._remoteEndPoint.Address.ToString(), this._remoteEndPoint.Port);
}
this.Close();
return;
} else {
this.SendMessage("Syntax error, command unrecognized", 500);
if (eMailServer.Options.Verbose) {
logger.Debug("[{0}:{1}] to [{2}:{3}] unknown command: {2}", this._remoteEndPoint.Address.ToString(), this._remoteEndPoint.Port, this._localEndPoint.Address.ToString(), this._localEndPoint.Port, e.Line);
}
}
} else {
if (e.Line == ".") {
mailMessage = mailMessage.Trim();
logger.Info("[{0}:{1}] to [{2}:{3}] eMail data received: {2}", this._remoteEndPoint.Address.ToString(), this._remoteEndPoint.Port, mailMessage, this._localEndPoint.Address.ToString(), this._localEndPoint.Port);
dataStarted = false;
mail.ParseData(mailMessage);
if (mail.IsValid) {
if (this._user.IsLoggedIn && User.EMailExists(mail.MailFrom)) {
mail.SetUser(this._user);
mail.SetFolder("SENT");
} else {
mail.SetFolder("INBOX");
}
mail.SaveToMongoDB();
} else {
logger.Error("received message is invalid for saving to database.");
}
this.SendMessage("OK", 250);
} else {
mailMessage += e.Line + "\r\n";
}
}
break;
}
};
}