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/**
 *  @file  operator-subscribe.cc
 *  @brief Implementation of the SUBSCRIBE command.
 *  @author Andreas Aardal Hanssen
 *  @date 2002-2005
 */

#include "convert.h"
#include "depot.h"
#include "operators.h"
#include "recursivedescent.h"
#include "session.h"

#include <iostream>
#include <string>

#include <sys/stat.h>

using namespace Binc;
using std::string;

SubscribeOperator::SubscribeOperator() {}

SubscribeOperator::~SubscribeOperator() {}

const string SubscribeOperator::getName() const
{
  return "SUBSCRIBE";
}

Session::State SubscribeOperator::getState() const
{
  return Session::State(Session::AUTHENTICATED | Session::SELECTED);
}

Operator::ProcessResult SubscribeOperator::process(Depot &depot, Request &command)
{
  const string &srcmailbox = command.getMailbox();
  const string &canonmailbox = toCanonMailbox(srcmailbox);

  depot.loadSubscribes();
  depot.subscribeTo(canonmailbox);
  depot.saveSubscribes();

  return ProcessResult::OK;
}

Parser::ParseResult SubscribeOperator::parse(Request &c_in)
{
  Session &session = Session::getInstance();

  if (c_in.getUidMode()) return Parser::ParseResult::REJECT;

  Parser::ParseResult res;
  if ((res = expectSPACE()) != Parser::ParseResult::ACCEPT) {
    session.setLastError("Expected SPACE");
    return res;
  }

  string mailbox;
  if ((res = expectMailbox(mailbox)) != Parser::ParseResult::ACCEPT) {
    session.setLastError("Expected mailbox");
    return res;
  }
  c_in.setMailbox(mailbox);

  if ((res = expectCRLF()) != Parser::ParseResult::ACCEPT) {
    session.setLastError("Expected CRLF");
    return res;
  }

  return Parser::ParseResult::ACCEPT;
}