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302 lines (245 loc) · 7.49 KB
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//
// POP3ClientSession.cpp
//
// $Id: //poco/svn/Net/src/POP3ClientSession.cpp#2 $
//
// Library: Net
// Package: Mail
// Module: POP3ClientSession
//
// Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
#include "Poco/Net/POP3ClientSession.h"
#include "Poco/Net/MailMessage.h"
#include "Poco/Net/MailStream.h"
#include "Poco/Net/SocketAddress.h"
#include "Poco/Net/NetException.h"
#include "Poco/StreamCopier.h"
#include "Poco/NumberFormatter.h"
#include "Poco/UnbufferedStreamBuf.h"
#include <istream>
#include <cctype>
using Poco::NumberFormatter;
using Poco::StreamCopier;
namespace Poco {
namespace Net {
class DialogStreamBuf: public Poco::UnbufferedStreamBuf
{
public:
DialogStreamBuf(DialogSocket& socket):
_socket(socket)
{
}
~DialogStreamBuf()
{
}
private:
int readFromDevice()
{
return _socket.get();
}
DialogSocket& _socket;
};
class DialogIOS: public virtual std::ios
{
public:
DialogIOS(DialogSocket& socket):
_buf(socket)
{
poco_ios_init(&_buf);
}
~DialogIOS()
{
}
DialogStreamBuf* rdbuf()
{
return &_buf;
}
protected:
DialogStreamBuf _buf;
};
class DialogInputStream: public DialogIOS, public std::istream
{
public:
DialogInputStream(DialogSocket& socket):
DialogIOS(socket),
std::istream(&_buf)
{
}
~DialogInputStream()
{
}
};
POP3ClientSession::POP3ClientSession(const StreamSocket& socket):
_socket(socket),
_isOpen(true)
{
}
POP3ClientSession::POP3ClientSession(const std::string& host, Poco::UInt16 port):
_socket(SocketAddress(host, port)),
_isOpen(true)
{
}
POP3ClientSession::~POP3ClientSession()
{
try
{
close();
}
catch (...)
{
}
}
void POP3ClientSession::setTimeout(const Poco::Timespan& timeout)
{
_socket.setReceiveTimeout(timeout);
}
Poco::Timespan POP3ClientSession::getTimeout() const
{
return _socket.getReceiveTimeout();
}
void POP3ClientSession::login(const std::string& username, const std::string& password)
{
std::string response;
_socket.receiveMessage(response);
if (!isPositive(response)) throw SMTPException("The POP3 service is unavailable", response);
sendCommand("USER", username, response);
if (!isPositive(response)) throw POP3Exception("Login rejected for user", response);
sendCommand("PASS", password, response);
if (!isPositive(response)) throw POP3Exception("Password rejected for user", response);
}
void POP3ClientSession::close()
{
if (_isOpen)
{
std::string response;
sendCommand("QUIT", response);
_socket.close();
_isOpen = false;
}
}
int POP3ClientSession::messageCount()
{
std::string response;
sendCommand("STAT", response);
if (!isPositive(response)) throw POP3Exception("Cannot determine message count", response);
std::string::const_iterator it = response.begin();
std::string::const_iterator end = response.end();
int count = 0;
while (it != end && !std::isspace(*it)) ++it;
while (it != end && std::isspace(*it)) ++it;
while (it != end && std::isdigit(*it)) count = count*10 + *it++ - '0';
return count;
}
void POP3ClientSession::listMessages(MessageInfoVec& messages)
{
messages.clear();
std::string response;
sendCommand("LIST", response);
if (!isPositive(response)) throw POP3Exception("Cannot get message list", response);
_socket.receiveMessage(response);
while (response != ".")
{
MessageInfo info = {0, 0};
std::string::const_iterator it = response.begin();
std::string::const_iterator end = response.end();
while (it != end && std::isdigit(*it)) info.id = info.id*10 + *it++ - '0';
while (it != end && std::isspace(*it)) ++it;
while (it != end && std::isdigit(*it)) info.size = info.size*10 + *it++ - '0';
messages.push_back(info);
_socket.receiveMessage(response);
}
}
void POP3ClientSession::retrieveMessage(int id, MailMessage& message)
{
std::string response;
sendCommand("RETR", NumberFormatter::format(id), response);
if (!isPositive(response)) throw POP3Exception("Cannot get message list", response);
DialogInputStream sis(_socket);
MailInputStream mis(sis);
message.read(mis);
while (mis.good()) mis.get(); // read any remaining junk
}
void POP3ClientSession::retrieveMessage(int id, MailMessage& message, PartHandler& handler)
{
std::string response;
sendCommand("RETR", NumberFormatter::format(id), response);
if (!isPositive(response)) throw POP3Exception("Cannot get message list", response);
DialogInputStream sis(_socket);
MailInputStream mis(sis);
message.read(mis, handler);
while (mis.good()) mis.get(); // read any remaining junk
}
void POP3ClientSession::retrieveMessage(int id, std::ostream& ostr)
{
std::string response;
sendCommand("RETR", NumberFormatter::format(id), response);
if (!isPositive(response)) throw POP3Exception("Cannot get message list", response);
DialogInputStream sis(_socket);
MailInputStream mis(sis);
StreamCopier::copyStream(mis, ostr);
}
void POP3ClientSession::retrieveHeader(int id, MessageHeader& header)
{
std::string response;
sendCommand("TOP", NumberFormatter::format(id), "0", response);
if (!isPositive(response)) throw POP3Exception("Cannot get message list", response);
DialogInputStream sis(_socket);
MailInputStream mis(sis);
header.read(mis);
// skip stuff following header
mis.get(); // \r
mis.get(); // \n
}
void POP3ClientSession::deleteMessage(int id)
{
std::string response;
sendCommand("DELE", NumberFormatter::format(id), response);
if (!isPositive(response)) throw POP3Exception("Cannot mark message for deletion", response);
}
bool POP3ClientSession::sendCommand(const std::string& command, std::string& response)
{
_socket.sendMessage(command);
_socket.receiveMessage(response);
return isPositive(response);
}
bool POP3ClientSession::sendCommand(const std::string& command, const std::string& arg, std::string& response)
{
_socket.sendMessage(command, arg);
_socket.receiveMessage(response);
return isPositive(response);
}
bool POP3ClientSession::sendCommand(const std::string& command, const std::string& arg1, const std::string& arg2, std::string& response)
{
_socket.sendMessage(command, arg1, arg2);
_socket.receiveMessage(response);
return isPositive(response);
}
bool POP3ClientSession::isPositive(const std::string& response)
{
return response.length() > 0 && response[0] == '+';
}
} } // namespace Poco::Net