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/** --------------------------------------------------------------------
* @file operator-login.cc
* @brief Implementation of the rapid LOGIN command
* @author Andreas Aardal Hanssen, Erwin Hoffmann
* @date 2002-2005, 2023
* ----------------------------------------------------------------- **/
#include <unistd.h>
#include <sys/types.h>
#include <signal.h>
#include <errno.h>
#include <string>
#include <iostream>
#include "authenticate.h"
#include "depot.h"
#include "iodevice.h"
#include "iofactory.h"
#include "globals.h"
#include "operators.h"
#include "recursivedescent.h"
#include "session.h"
using namespace ::std;
using namespace Binc;
//----------------------------------------------------------------------
LoginOperator::LoginOperator(void)
{
}
//----------------------------------------------------------------------
LoginOperator::~LoginOperator(void)
{
}
//----------------------------------------------------------------------
const string LoginOperator::getName(void) const
{
return "LOGIN";
}
//----------------------------------------------------------------------
int LoginOperator::getState(void) const
{
return Session::NONAUTHENTICATED;
}
//------------------------------------------------------------------------
Operator::ProcessResult LoginOperator::process(Depot &depot,
Request &command)
{
Session &session = Session::getInstance();
if (!session.command.ssl
&& !session.hasEnv("ALLOW_NONSSL_PLAINTEXT_LOGINS")) {
session.setLastError("Plain text password authentication is disallowd. "
"Please enable StartTLS or TLS in your mail client.");
return NO;
}
session.setEnv("BINCIMAP_LOGIN", "LOGIN+" + command.getTag());
string challenge;
switch (authenticate(depot, command.getUserID(), command.getPassword(), challenge)) {
case 1:
session.setLastError("An internal error occurred when you attempted "
"to log in to the IMAP server. Please contact "
"your system administrator.");
return NO;
case 2:
session.setLastError("Login failed. Either your user name "
"or your password was wrong. Please try again, "
"and if the problem persists, please contact "
"your system administrator.");
return NO;
case 3:
bincClient << "* BYE Timeout after " << IDLE_TIMEOUT
<< " seconds of inactivity." << endl;
break;
case -1:
bincClient << "* BYE The server died unexpectedly. Please contact "
"your system administrator for more information." << endl;
break;
}
// go to logout
session.setState(Session::LOGOUT);
return NOTHING;
}
//----------------------------------------------------------------------
Operator::ParseResult LoginOperator::parse(Request &c_in) const
{
Session &session = Session::getInstance();
if (c_in.getUidMode()) return REJECT;
Operator::ParseResult res;
if ((res = expectSPACE()) != ACCEPT) {
session.setLastError("Expected single SPACE after LOGIN");
return res;
}
string userid;
if ((res = expectAstring(userid)) != ACCEPT) {
session.setLastError("Expected userid after LOGIN SPACE");
return res;
}
c_in.setUserID(userid);
if ((res = expectSPACE()) != ACCEPT) {
session.setLastError("Expected SPACE after LOGIN SPACE userid");
return res;
}
string password;
if ((res = expectAstring(password)) != ACCEPT) {
session.setLastError("Expected password after LOGIN "
"SPACE userid SPACE");
return res;
}
if ((res = expectCRLF()) != ACCEPT) {
session.setLastError("Expected CRLF after password");
return res;
}
c_in.setPassword(password);
c_in.setName("LOGIN");
return ACCEPT;
}
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