Develop Reference

How to read emails dynamically using C# library

I'm trying to work with email data in my application. Everything works fine, I just need that when a new email arrives, it should also be read. This way only the emails are printed before the application starts. Is this possible in the EAGetEmails library using POP3 Server or do I have to program my own Sever or after some short time turn on and off the Application to update itself(This seems to me a rather clumsy solution)?
using EAGetMail;
using System;
using System.Globalization;
using System.IO;
namespace PopServer
{
class Program
{
static string _generateFileName(int sequence)
{
DateTime currentDateTime = DateTime.Now;
return string.Format("{0}-{1:000}-{2:000}.eml",
currentDateTime.ToString("yyyyMMddHHmmss", new CultureInfo("en-US")),
currentDateTime.Millisecond,
sequence);
}
static void Main(string[] args)
{
try
{
string localInbox = string.Format("{0}\\inbox", Directory.GetCurrentDirectory());
if (!Directory.Exists(localInbox))
{
Directory.CreateDirectory(localInbox);
}
MailServer oServer = new MailServer("popserver.com",
"username#mail.com",
"password",
ServerProtocol.Pop3);
oServer.SSLConnection = true;
oServer.Port = 995;
MailClient oClient = new MailClient("TryIt");
oClient.Connect(oServer);
MailInfo[] infos = oClient.GetMailInfos();
Console.WriteLine("Total {0} email(s)\r\n", infos.Length);
//Here I tried to take advantage of the fact that if the application is connected via SSLConnection, it could update, but it only prints the emails before starting the application
while (oServer.SSLConnection)
{
for (int i = 0; i < infos.Length; i++)
{
MailInfo info = infos[i];
Console.WriteLine("Index: {0}; Size: {1}; UIDL: {2}",
info.Index, info.Size, info.UIDL);
Mail oMail = oClient.GetMail(info);
Console.WriteLine("From: {0}", oMail.From.ToString());
Console.WriteLine("Subject: {0}\r\n", oMail.Subject);
Console.WriteLine("Body: {0}\r\n", oMail.TextBody);
string fileName = _generateFileName(i + 1);
string fullPath = string.Format("{0}\\{1}", localInbox, fileName);
oMail.SaveAs(fullPath, true);
//Delete email-isRead
//oClient.Delete(info);
}
}
oClient.Quit();
Console.WriteLine("Completed!");
}
catch (Exception ep)
{
Console.WriteLine(ep.Message);
}
}
}
}

EAGetMail is not really popular,you can take a look on this library : https://www.nuget.org/packages/OpenPop.NET/
public static List<Message> FetchAllMessages(string hostname, int port, bool useSsl, string username, string password)
{
// The client disconnects from the server when being disposed
using(Pop3Client client = new Pop3Client())
{
// Connect to the server
client.Connect(hostname, port, useSsl);
// Authenticate ourselves towards the server
client.Authenticate(username, password);
// Get the number of messages in the inbox
int messageCount = client.GetMessageCount();
// We want to download all messages
List<Message> allMessages = new List<Message>(messageCount);
// Messages are numbered in the interval: [1, messageCount]
// Ergo: message numbers are 1-based.
// Most servers give the latest message the highest number
for (int i = messageCount; i > 0; i--)
{
allMessages.Add(client.GetMessage(i));
}
// Now return the fetched messages
return allMessages;
}
}
Then you just have to code a little loop to check email every few secondes.

How to automatically open(click) a HTTP link from a mail body(outlook) message using C# in a Windows Application?

I want to automatically open or click a http link from the Outlook mail body.
I am using MailServer.
Here my code:
// Some function...
for (int i = 0; i < infos.Length; i++)
{
MailInfo info = infos[i];
Console.WriteLine("Index: {0}; Size: {1}; UIDL: {2}; Flags: {3}",
info.Index, info.Size, info.UIDL, info.Flags);
// Receive email from POP3 server
Mail oMail = oClient.GetMail(info);
Console.WriteLine("From: {0}", oMail.From.ToString());
Console.WriteLine("To: {0}", oMail.To.ToString());
Console.WriteLine("Subject: {0}\r\n", oMail.Subject);
if (oMail.Attachments.Length > 0)
{
for (int j = 0; j <= oMail.Attachments.Length - 1; j++)
{
System.DateTime d = System.DateTime.Now;
System.Globalization.CultureInfo cur = new System.Globalization.CultureInfo("en-US");
string sdate = d.ToString("MMddyyyyHHmmss", cur);
string fileName = String.Format("{0}\\{1}{2}{3}.eml", mailbox, sdate, d.Millisecond.ToString("d3"), i);
// Save email to local disk
oMail.SaveAs(fileName, true);
// Save attachments in specific folders.
oMail.Attachments[j].SaveAs(#"D:\"{Folder Name}"\" + oMail.Attachments[j].Name, true); // find the said path
// Mark email as deleted from POP3 server.
oClient.Delete(info);
}
}
// Generate an email file name based on date time.
}
// Quit and purge emails marked as deleted from POP3 server.
oClient.Quit();
}
Please give me any idea.

Multi Client TCP Server not acceping some clients c#

I am trying to make a server that will accept clients, and will communicate with them until they say "exit".
the problem is, after 5-8 clients, the server decides that he don't want to accept any more clients, and when a client is connected.. I simply don't see a "client connected : 123.242.123.13:92313" in the console.
anyone knows the problem?
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Threading;
namespace GatherServer
{
class Program
{
public static int connections = 0, team1 = 0, team2 = 0, playing = 12;
public static string lbleader = "";
public static bool isleader = false;
static TcpListener myList = new TcpListener(IPAddress.Any, 7846);
static void Listeners()
{
string charname = "";
bool inque = false;
Socket socketForClient = myList.AcceptSocket();
if(socketForClient.Connected)
{
Console.WriteLine("Client Connected: " + socketForClient.RemoteEndPoint);
NetworkStream networkStream = new NetworkStream(socketForClient);
StreamWriter streamWriter = new StreamWriter(networkStream);
StreamReader streamReader = new StreamReader(networkStream);
while (true)
{
string newString = streamReader.ReadLine();
if (newString.Contains("#") && inque == false)
{
if (newString.Contains("Leader"))
{
newString = newString.Replace("Leader","");
if (!isleader)
{
isleader = true;
lbleader = newString;
charname = lbleader;
Console.WriteLine(lbleader + " is the gather leader");
}
}
inque = true;
charname = newString;
connections++;
Console.WriteLine("connections: " + connections + " | from: "+charname);
}
if (newString == "exit")
{
if (charname == lbleader)
{
isleader = false;
Console.WriteLine(lbleader + " Left, there is not active leader");
}
else
Console.WriteLine(charname + " has left the game: "+socketForClient.RemoteEndPoint);
if (inque == true)
connections--;
break;
}
else
{
streamWriter.WriteLine(connections.ToString());
streamWriter.Flush();
if (connections == 12)
{
if (!isleader)
{
lbleader = charname;
Console.WriteLine(lbleader + " is the gather leader");
isleader = true;
}
Random rnd = new Random();
int team = rnd.Next(1, 3); // creates a number between 1 and 2
if(team == 1)
{
if (team1 < 6)
{
team1++;
Console.WriteLine(newString + " " + socketForClient.RemoteEndPoint + " assigned to Team 1");
streamWriter.WriteLine("team1"+lbleader);
streamWriter.Flush();
inque = false;
playing--;
break;
}
else
{
Console.WriteLine(newString + " " + socketForClient.RemoteEndPoint + " assigned to Team 2");
team2++;
streamWriter.WriteLine("team2" + lbleader);
streamWriter.Flush();
inque = false;
playing--;
break;
}
}
if(team == 2)
{
if (team2 < 6)
{
Console.WriteLine(newString + " " + socketForClient.RemoteEndPoint + " assigned to Team 2");
team2++;
streamWriter.WriteLine("team2" + lbleader);
streamWriter.Flush();
inque = false;
playing--;
break;
}
else
{
Console.WriteLine(newString + " " + socketForClient.RemoteEndPoint + " assigned to Team 1");
team1++;
streamWriter.WriteLine("team1" + lbleader);
streamWriter.Flush();
inque = false;
playing--;
break;
}
}
}
}
}
if (playing == 0)
{
connections = playing;
playing = 12;
lbleader = null;
isleader = false;
}
Console.WriteLine("playing:" + playing);
Console.WriteLine("connections: " + connections);
inque = false;
streamWriter.Close();
streamReader.Close();
networkStream.Close();
socketForClient.Close();
}
}
static void Main(string[] args)
{
myList.Start();
Console.WriteLine("Sever is up and running...");
for(int i=0; i<1000;i++)
{
Thread newThread = new Thread(new ThreadStart(Listeners));
newThread.Start();
}
}
}
}
Basically, what I want to do is to give each client a thread of its own. but after 5-8 connections, the server Socket socketForClient = myList.AcceptSocket(); not working, I think its because I am running out of threads.. but I have no clue why, there should be 1000 threads open when only 5 to 8 connections are made.
please help!

Found out what was the problem, I was highlighting some stuff in the server console, which caused the server to pause.

C# Programming Unisource 4100 GPIB DMM

I am trying to read voltage measurements from my Unisource 4100 GPIB DMM. I know I can connect to the device because I get appropriate responses with the commands '*RST' and '*IDN?', however I cannot get any responses with other commands such as 'SYST:ERR?' or 'CONF:VOLT:DC 1000, 0.001'. I have tested out the code I am trying with on the Agilent 34410A and managed to get the responses I want, but not with the Unisource 4100. I am using the NI GPIB-USB-HS controller to interface with. I have included the code below. Should the SCPI commands not work for all GPIB interfaces? What changes would I have to make to elicit a response from the Unisource 4100?
I have included some code for reference:
using System;
using System.Collections.Generic;
using System.Threading;
using System.Text;
using Ivi.Visa.Interop;
namespace CsharpExample
{
class VoltageExample
{
static void Main(string[] args)
{
VoltageExample DmmClass = new VoltageExample(); //Create an instance of this class so we can call functions from Main
Ivi.Visa.Interop.ResourceManager rm = new Ivi.Visa.Interop.ResourceManager(); //Open up a new resource manager
Ivi.Visa.Interop.FormattedIO488 myDmm = new Ivi.Visa.Interop.FormattedIO488(); //Open a new Formatted IO 488 session
try
{
string DutAddr = "GPIB0::12::INSTR"; //String for GPIB
myDmm.IO = (IMessage)rm.Open(DutAddr, AccessMode.NO_LOCK, 10000, ""); //Open up a handle to the DMM with a 2 second timeout
//myDmm.IO.Timeout = 20000;
myDmm.IO.Clear(); //Send a device clear first
myDmm.WriteString("*RST", true); //Reset the device
myDmm.WriteString("*IDN?", true); //Get the IDN string
string IDN = myDmm.ReadString();
Console.WriteLine(IDN); //report the DMM's identity
myDmm.WriteString("*TST?", true); //Get the IDN string
Thread.Sleep(5000);
string TST = myDmm.ReadString();
Console.WriteLine(TST); //report the DMM's identity
myDmm.WriteString("SYST:ERR?", true); //Get the IDN string
string ERR = myDmm.ReadString();
Console.WriteLine(ERR); //report the DMM's identity
myDmm.WriteString("CONF:VOLT:DC 1000, 0.001", true);
DateTime time = DateTime.Now; //Timer to measure the time difference to get all the readings
TimeSpan diff;
Console.WriteLine("Measurement in Volts");
for(int i = 0; i<10; i++){
//Configure for DCV 100V range, 100uV resolution
myDmm.WriteString("READ?", true);
String DCVResult = myDmm.ReadString();
Console.WriteLine("DCV Reading = " + DCVResult); //report the DCV reading
DmmClass.CheckDMMError(myDmm); //Check if the DMM has any errors
Thread.Sleep(1000);
diff = DateTime.Now.Subtract(time);
//diff = DateTime.Now.Subtract(time.AddSeconds(1).AddMilliseconds(20));
Console.WriteLine("\t\t\t" + diff);
}
myDmm.WriteString("CONF:RES 100, MAX", true);
Console.WriteLine("Measurement in Ohms");
for (int i = 0; i < 10; i++)
{
//Configure for res 1000 Ohm range, 100uV resolution
myDmm.WriteString("READ?", true);
String OHMResult = myDmm.ReadString();
Console.WriteLine("Resistance Measurement = " + OHMResult); //report the DCV reading
DmmClass.CheckDMMError(myDmm); //Check if the DMM has any errors
Thread.Sleep(500);
}
}
catch (Exception e)
{
Console.WriteLine("Error occured: " + e.Message);
}
finally
{
//Close out your resources
try { myDmm.IO.Close(); }
catch{}
try{ System.Runtime.InteropServices.Marshal.ReleaseComObject(myDmm);}
catch {}
try{
System.Runtime.InteropServices.Marshal.ReleaseComObject(rm);
}
catch {}
Console.WriteLine("Press any key to continue...");
Console.ReadKey();
}
}

EWS Downloaded Xml Attachment is Empty using EaGetmail

I am developing a Console application which will monitor Exchange server and download attachments(XML Files) from new emails. I have used EaGetmail for this.
Attachments are downloading to target folder but it is empty. Looking for a solution.
This is my sample code, Any suggestions Pls.
private static void CheckInboxforEmail()
{
// Use domain\user as the user name
MailServer oServer = new MailServer("MailID", "domain","Pwd",ServerProtocol.ExchangeEWS);
MailClient oClient = new MailClient("TryIt");
oServer.SSLConnection = true;
try
{
oClient.Connect(oServer);
MailInfo[] infos = oClient.GetMailInfos();
for (int i = 0; i < infos.Length; i++)
{
MailInfo info = infos[i];
// Receive email from Exchange server
Mail oMail = oClient.GetMail(info);
//SaveAttachments
foreach (EAGetMail.Attachment Att in oMail.Attachments)
{
string AttName = String.Format("{0}\\{1}", WIPFolder,Att.Name);
oMail.SaveAs(AttName, true);
}
// Delete email from EWS server.
oClient.Delete(info);
}
// Quit from Exchange server.
oClient.Quit();
}
catch (Exception ep)
{
}
}

Try this it worked for me!!!!
//Get Attachments
Attachment[] atts = oMail.Attachments;
int count = atts.Length;
//Store Attachments
for (int ai = 0; ai < count; ai++)
{
Attachment att = atts[ai];
string attname = String.Format("{0}\\{1}", mailbox, att.Name);
att.SaveAs(attname, true);
}