mirror of
https://github.com/pocoproject/poco.git
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b0581433a7
fix: remove executable flag and change back to 100644 (was 100755) Signed-off-by: Roger Meier <r.meier@siemens.com>
442 lines
12 KiB
C++
442 lines
12 KiB
C++
//
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// SMTPClientSession.cpp
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//
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// $Id: //poco/1.4/Net/src/SMTPClientSession.cpp#1 $
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//
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// Library: Net
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// Package: Mail
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// Module: SMTPClientSession
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//
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// Copyright (c) 2005-2008, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#include "Poco/Net/SMTPClientSession.h"
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#include "Poco/Net/MailMessage.h"
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#include "Poco/Net/MailRecipient.h"
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#include "Poco/Net/MailStream.h"
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#include "Poco/Net/SocketAddress.h"
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#include "Poco/Net/SocketStream.h"
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#include "Poco/Net/NetException.h"
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#include "Poco/Environment.h"
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#include "Poco/Net/NetworkInterface.h"
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#include "Poco/HMACEngine.h"
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#include "Poco/MD5Engine.h"
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#include "Poco/SHA1Engine.h"
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#include "Poco/DigestStream.h"
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#include "Poco/StreamCopier.h"
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#include "Poco/Base64Encoder.h"
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#include "Poco/Base64Decoder.h"
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#include "Poco/String.h"
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#include <sstream>
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#include <fstream>
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#include <iostream>
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using Poco::DigestEngine;
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using Poco::HMACEngine;
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using Poco::MD5Engine;
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using Poco::SHA1Engine;
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using Poco::DigestOutputStream;
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using Poco::StreamCopier;
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using Poco::Base64Encoder;
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using Poco::Base64Decoder;
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using Poco::Environment;
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namespace Poco {
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namespace Net {
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SMTPClientSession::SMTPClientSession(const StreamSocket& socket):
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_socket(socket),
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_isOpen(false)
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{
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}
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SMTPClientSession::SMTPClientSession(const std::string& host, Poco::UInt16 port):
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_socket(SocketAddress(host, port)),
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_isOpen(false)
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{
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}
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SMTPClientSession::~SMTPClientSession()
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{
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try
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{
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close();
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}
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catch (...)
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{
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}
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}
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void SMTPClientSession::setTimeout(const Poco::Timespan& timeout)
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{
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_socket.setReceiveTimeout(timeout);
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}
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Poco::Timespan SMTPClientSession::getTimeout() const
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{
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return _socket.getReceiveTimeout();
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}
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void SMTPClientSession::login(const std::string& hostname, std::string& response)
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{
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open();
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int status = sendCommand("EHLO", hostname, response);
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if (isPermanentNegative(status))
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status = sendCommand("HELO", hostname, response);
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if (!isPositiveCompletion(status)) throw SMTPException("Login failed", response, status);
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}
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void SMTPClientSession::login(const std::string& hostname)
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{
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std::string response;
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login(hostname, response);
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}
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void SMTPClientSession::login()
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{
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login(Environment::nodeName());
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}
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void SMTPClientSession::loginUsingCRAMMD5(const std::string& username, const std::string& password)
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{
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HMACEngine<MD5Engine> hmac(password);
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loginUsingCRAM(username, "CRAM-MD5", hmac);
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}
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void SMTPClientSession::loginUsingCRAMSHA1(const std::string& username, const std::string& password)
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{
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HMACEngine<SHA1Engine> hmac(password);
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loginUsingCRAM(username, "CRAM-SHA1", hmac);
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}
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void SMTPClientSession::loginUsingCRAM(const std::string& username, const std::string& method, Poco::DigestEngine& hmac)
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{
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std::string response;
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int status = sendCommand(std::string("AUTH ") + method, response);
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if (!isPositiveIntermediate(status)) throw SMTPException(std::string("Cannot authenticate using ") + method, response, status);
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std::string challengeBase64 = response.substr(4);
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std::istringstream istr(challengeBase64);
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Base64Decoder decoder(istr);
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std::string challenge;
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StreamCopier::copyToString(decoder, challenge);
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hmac.update(challenge);
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const DigestEngine::Digest& digest = hmac.digest();
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std::string digestString(DigestEngine::digestToHex(digest));
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std::string challengeResponse = username + " " + digestString;
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std::ostringstream challengeResponseBase64;
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Base64Encoder encoder(challengeResponseBase64);
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encoder << challengeResponse;
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encoder.close();
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status = sendCommand(challengeResponseBase64.str(), response);
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if (!isPositiveCompletion(status)) throw SMTPException(std::string("Login using ") + method + " failed", response, status);
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}
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void SMTPClientSession::loginUsingLogin(const std::string& username, const std::string& password)
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{
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std::string response;
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int status = sendCommand("AUTH LOGIN", response);
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if (!isPositiveIntermediate(status)) throw SMTPException("Cannot authenticate using LOGIN", response, status);
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std::ostringstream usernameBase64;
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Base64Encoder usernameEncoder(usernameBase64);
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usernameEncoder << username;
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usernameEncoder.close();
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std::ostringstream passwordBase64;
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Base64Encoder passwordEncoder(passwordBase64);
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passwordEncoder << password;
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passwordEncoder.close();
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//Server request for username/password not defined could be either
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//S: login:
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//C: user_login
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//S: password:
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//C: user_password
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//or
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//S: password:
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//C: user_password
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//S: login:
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//C: user_login
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std::string decodedResponse;
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std::istringstream responseStream(response.substr(4));
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Base64Decoder responseDecoder(responseStream);
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StreamCopier::copyToString(responseDecoder, decodedResponse);
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if (Poco::icompare(decodedResponse, 0, 8, "username") == 0) // username first (md5("Username:"))
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{
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status = sendCommand(usernameBase64.str(), response);
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if (!isPositiveIntermediate(status)) throw SMTPException("Login using LOGIN username failed", response, status);
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status = sendCommand(passwordBase64.str(), response);
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if (!isPositiveCompletion(status)) throw SMTPException("Login using LOGIN password failed", response, status);
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}
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else if (Poco::icompare(decodedResponse, 0, 8, "password") == 0) // password first (md5("Password:"))
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{
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status = sendCommand(passwordBase64.str(), response);
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if (!isPositiveIntermediate(status)) throw SMTPException("Login using LOGIN password failed", response, status);
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status = sendCommand(usernameBase64.str(), response);
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if (!isPositiveCompletion(status)) throw SMTPException("Login using LOGIN username failed", response, status);
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}
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}
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void SMTPClientSession::loginUsingPlain(const std::string& username, const std::string& password)
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{
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std::ostringstream credentialsBase64;
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Base64Encoder credentialsEncoder(credentialsBase64);
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credentialsEncoder << '\0' << username << '\0' << password;
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credentialsEncoder.close();
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std::string response;
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int status = sendCommand("AUTH PLAIN", credentialsBase64.str(), response);
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if (!isPositiveCompletion(status)) throw SMTPException("Login using PLAIN failed", response, status);
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}
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void SMTPClientSession::login(LoginMethod loginMethod, const std::string& username, const std::string& password)
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{
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login(Environment::nodeName(), loginMethod, username, password);
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}
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void SMTPClientSession::login(const std::string& hostname, LoginMethod loginMethod, const std::string& username, const std::string& password)
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{
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std::string response;
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login(hostname, response);
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if (loginMethod == AUTH_CRAM_MD5)
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{
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if (response.find("CRAM-MD5", 0) != std::string::npos)
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{
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loginUsingCRAMMD5(username, password);
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}
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else throw SMTPException("The mail service does not support CRAM-MD5 authentication", response);
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}
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else if (loginMethod == AUTH_CRAM_SHA1)
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{
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if (response.find("CRAM-SHA1", 0) != std::string::npos)
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{
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loginUsingCRAMSHA1(username, password);
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}
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else throw SMTPException("The mail service does not support CRAM-SHA1 authentication", response);
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}
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else if (loginMethod == AUTH_LOGIN)
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{
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if (response.find("LOGIN", 0) != std::string::npos)
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{
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loginUsingLogin(username, password);
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}
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else throw SMTPException("The mail service does not support LOGIN authentication", response);
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}
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else if (loginMethod == AUTH_PLAIN)
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{
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if (response.find("PLAIN", 0) != std::string::npos)
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{
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loginUsingPlain(username, password);
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}
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else throw SMTPException("The mail service does not support PLAIN authentication", response);
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}
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else if (loginMethod != AUTH_NONE)
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{
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throw SMTPException("The autentication method is not supported");
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}
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}
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void SMTPClientSession::open()
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{
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if (!_isOpen)
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{
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std::string response;
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int status = _socket.receiveStatusMessage(response);
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if (!isPositiveCompletion(status)) throw SMTPException("The mail service is unavailable", response, status);
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_isOpen = true;
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}
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}
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void SMTPClientSession::close()
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{
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if (_isOpen)
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{
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std::string response;
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sendCommand("QUIT", response);
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_socket.close();
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_isOpen = false;
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}
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}
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void SMTPClientSession::sendCommands(const MailMessage& message, const Recipients* pRecipients)
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{
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std::string response;
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int status = 0;
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const std::string& fromField = message.getSender();
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std::string::size_type emailPos = fromField.find('<');
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if (emailPos == std::string::npos)
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{
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std::string sender("<");
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sender.append(fromField);
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sender.append(">");
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status = sendCommand("MAIL FROM:", sender, response);
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}
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else
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{
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status = sendCommand("MAIL FROM:", fromField.substr(emailPos, fromField.size() - emailPos), response);
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}
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if (!isPositiveCompletion(status)) throw SMTPException("Cannot send message", response, status);
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std::ostringstream recipient;
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if (pRecipients)
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{
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for (Recipients::const_iterator it = pRecipients->begin(); it != pRecipients->end(); ++it)
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{
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recipient << '<' << *it << '>';
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int status = sendCommand("RCPT TO:", recipient.str(), response);
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if (!isPositiveCompletion(status)) throw SMTPException(std::string("Recipient rejected: ") + recipient.str(), response, status);
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recipient.str("");
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}
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}
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else
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{
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for (MailMessage::Recipients::const_iterator it = message.recipients().begin(); it != message.recipients().end(); ++it)
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{
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recipient << '<' << it->getAddress() << '>';
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int status = sendCommand("RCPT TO:", recipient.str(), response);
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if (!isPositiveCompletion(status)) throw SMTPException(std::string("Recipient rejected: ") + recipient.str(), response, status);
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recipient.str("");
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}
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}
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status = sendCommand("DATA", response);
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if (!isPositiveIntermediate(status)) throw SMTPException("Cannot send message data", response, status);
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}
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void SMTPClientSession::sendAddresses(const std::string& from, const Recipients& recipients)
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{
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std::string response;
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int status = 0;
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std::string::size_type emailPos = from.find('<');
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if (emailPos == std::string::npos)
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{
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std::string sender("<");
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sender.append(from);
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sender.append(">");
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status = sendCommand("MAIL FROM:", sender, response);
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}
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else
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{
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status = sendCommand("MAIL FROM:", from.substr(emailPos, from.size() - emailPos), response);
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}
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if (!isPositiveCompletion(status)) throw SMTPException("Cannot send message", response, status);
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std::ostringstream recipient;
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for (Recipients::const_iterator it = recipients.begin(); it != recipients.end(); ++it)
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{
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recipient << '<' << *it << '>';
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int status = sendCommand("RCPT TO:", recipient.str(), response);
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if (!isPositiveCompletion(status)) throw SMTPException(std::string("Recipient rejected: ") + recipient.str(), response, status);
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recipient.str("");
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}
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}
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void SMTPClientSession::sendData()
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{
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std::string response;
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int status = sendCommand("DATA", response);
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if (!isPositiveIntermediate(status)) throw SMTPException("Cannot send message data", response, status);
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}
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void SMTPClientSession::sendMessage(const MailMessage& message)
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{
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sendCommands(message);
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transportMessage(message);
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}
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void SMTPClientSession::sendMessage(const MailMessage& message, const Recipients& recipients)
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{
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sendCommands(message, &recipients);
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transportMessage(message);
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}
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void SMTPClientSession::transportMessage(const MailMessage& message)
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{
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SocketOutputStream socketStream(_socket);
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MailOutputStream mailStream(socketStream);
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message.write(mailStream);
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mailStream.close();
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socketStream.flush();
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std::string response;
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int status = _socket.receiveStatusMessage(response);
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if (!isPositiveCompletion(status)) throw SMTPException("The server rejected the message", response, status);
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}
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int SMTPClientSession::sendCommand(const std::string& command, std::string& response)
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{
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_socket.sendMessage(command);
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return _socket.receiveStatusMessage(response);
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}
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int SMTPClientSession::sendCommand(const std::string& command, const std::string& arg, std::string& response)
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{
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_socket.sendMessage(command, arg);
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return _socket.receiveStatusMessage(response);
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}
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void SMTPClientSession::sendMessage(std::istream& istr)
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{
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std::string response;
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int status = 0;
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SocketOutputStream socketStream(_socket);
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MailOutputStream mailStream(socketStream);
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StreamCopier::copyStream(istr, mailStream);
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mailStream.close();
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socketStream.flush();
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status = _socket.receiveStatusMessage(response);
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if (!isPositiveCompletion(status)) throw SMTPException("The server rejected the message", response, status);
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}
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} } // namespace Poco::Net
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