idinor Launcher
This library is stripped down version of NetServices library. HTTP server and client function is NOT supported.
services/email/smtp/SMTPClient.cpp@0:dcf3c92487ca, 2011-07-20 (annotated)
- Committer:
- idinor
- Date:
- Wed Jul 20 11:45:39 2011 +0000
- Revision:
- 0:dcf3c92487ca
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| idinor | 0:dcf3c92487ca | 1 | |
| idinor | 0:dcf3c92487ca | 2 | /* |
| idinor | 0:dcf3c92487ca | 3 | Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) y Segundo Equipo |
| idinor | 0:dcf3c92487ca | 4 | |
| idinor | 0:dcf3c92487ca | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy |
| idinor | 0:dcf3c92487ca | 6 | of this software and associated documentation files (the "Software"), to deal |
| idinor | 0:dcf3c92487ca | 7 | in the Software without restriction, including without limitation the rights |
| idinor | 0:dcf3c92487ca | 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| idinor | 0:dcf3c92487ca | 9 | copies of the Software, and to permit persons to whom the Software is |
| idinor | 0:dcf3c92487ca | 10 | furnished to do so, subject to the following conditions: |
| idinor | 0:dcf3c92487ca | 11 | |
| idinor | 0:dcf3c92487ca | 12 | The above copyright notice and this permission notice shall be included in |
| idinor | 0:dcf3c92487ca | 13 | all copies or substantial portions of the Software. |
| idinor | 0:dcf3c92487ca | 14 | |
| idinor | 0:dcf3c92487ca | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| idinor | 0:dcf3c92487ca | 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| idinor | 0:dcf3c92487ca | 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| idinor | 0:dcf3c92487ca | 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| idinor | 0:dcf3c92487ca | 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| idinor | 0:dcf3c92487ca | 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| idinor | 0:dcf3c92487ca | 21 | THE SOFTWARE. |
| idinor | 0:dcf3c92487ca | 22 | */ |
| idinor | 0:dcf3c92487ca | 23 | #include "core/netservice.h" |
| idinor | 0:dcf3c92487ca | 24 | #include "SMTPClient.h" |
| idinor | 0:dcf3c92487ca | 25 | #include "../util/base64.h" |
| idinor | 0:dcf3c92487ca | 26 | |
| idinor | 0:dcf3c92487ca | 27 | #define __DEBUG |
| idinor | 0:dcf3c92487ca | 28 | #include "dbg/dbg.h" |
| idinor | 0:dcf3c92487ca | 29 | |
| idinor | 0:dcf3c92487ca | 30 | #define CHUNK_SIZE 256 //512 |
| idinor | 0:dcf3c92487ca | 31 | #define BUF_SIZE (CHUNK_SIZE + 1) |
| idinor | 0:dcf3c92487ca | 32 | |
| idinor | 0:dcf3c92487ca | 33 | #define SMTP_REQUEST_TIMEOUT 15000 |
| idinor | 0:dcf3c92487ca | 34 | #define SMTP_PORT 25 |
| idinor | 0:dcf3c92487ca | 35 | |
| idinor | 0:dcf3c92487ca | 36 | SMTPClient::SMTPClient() : NetService(false) /*Not owned by the pool*/, |
| idinor | 0:dcf3c92487ca | 37 | m_pCbItem(NULL), m_pCbMeth(NULL), m_pCb(NULL), |
| idinor | 0:dcf3c92487ca | 38 | m_watchdog(), m_timeout(SMTP_REQUEST_TIMEOUT), m_pDnsReq(NULL), m_server(), |
| idinor | 0:dcf3c92487ca | 39 | m_closed(true), m_state(SMTP_CLOSED), m_pMessage(NULL), |
| idinor | 0:dcf3c92487ca | 40 | m_posInMsg(0), m_blockingResult(SMTP_PROCESSING), |
| idinor | 0:dcf3c92487ca | 41 | m_username(""), m_password(""), m_auth(SMTP_AUTH_NONE), |
| idinor | 0:dcf3c92487ca | 42 | m_heloDomain("localhost") { |
| idinor | 0:dcf3c92487ca | 43 | DBG("New SMTPClient %p\n", this); |
| idinor | 0:dcf3c92487ca | 44 | } |
| idinor | 0:dcf3c92487ca | 45 | |
| idinor | 0:dcf3c92487ca | 46 | SMTPClient::SMTPClient(const Host& host, const char* heloDomain, const char* user, const char* password, SMTPAuth auth) : NetService(false), |
| idinor | 0:dcf3c92487ca | 47 | m_pCbItem(NULL), m_pCbMeth(NULL), m_pCb(NULL), |
| idinor | 0:dcf3c92487ca | 48 | m_watchdog(), m_timeout(SMTP_REQUEST_TIMEOUT), m_pDnsReq(NULL), m_server(host), |
| idinor | 0:dcf3c92487ca | 49 | m_closed(true), m_state(SMTP_CLOSED), m_pMessage(NULL), |
| idinor | 0:dcf3c92487ca | 50 | m_posInMsg(0), m_blockingResult(SMTP_PROCESSING), |
| idinor | 0:dcf3c92487ca | 51 | m_username(string(user)), m_password(string(password)), m_auth(auth), |
| idinor | 0:dcf3c92487ca | 52 | m_heloDomain(heloDomain) { |
| idinor | 0:dcf3c92487ca | 53 | DBG("New SMTPClient %p\n", this); |
| idinor | 0:dcf3c92487ca | 54 | } |
| idinor | 0:dcf3c92487ca | 55 | |
| idinor | 0:dcf3c92487ca | 56 | SMTPClient::~SMTPClient() { |
| idinor | 0:dcf3c92487ca | 57 | close(); |
| idinor | 0:dcf3c92487ca | 58 | } |
| idinor | 0:dcf3c92487ca | 59 | |
| idinor | 0:dcf3c92487ca | 60 | void SMTPClient::setAuth(const char* user, const char* password) { // Plain authentication |
| idinor | 0:dcf3c92487ca | 61 | m_username = string(user); |
| idinor | 0:dcf3c92487ca | 62 | m_password = string(password); |
| idinor | 0:dcf3c92487ca | 63 | m_auth = SMTP_AUTH_PLAIN; |
| idinor | 0:dcf3c92487ca | 64 | } |
| idinor | 0:dcf3c92487ca | 65 | |
| idinor | 0:dcf3c92487ca | 66 | void SMTPClient::clearAuth() { // Clear authentication |
| idinor | 0:dcf3c92487ca | 67 | m_username = ""; |
| idinor | 0:dcf3c92487ca | 68 | m_password = ""; |
| idinor | 0:dcf3c92487ca | 69 | m_auth = SMTP_AUTH_NONE; |
| idinor | 0:dcf3c92487ca | 70 | } |
| idinor | 0:dcf3c92487ca | 71 | |
| idinor | 0:dcf3c92487ca | 72 | string SMTPClient::encodePlainAuth() { |
| idinor | 0:dcf3c92487ca | 73 | string decStr = m_username; |
| idinor | 0:dcf3c92487ca | 74 | decStr += '\0'; |
| idinor | 0:dcf3c92487ca | 75 | decStr += m_username; |
| idinor | 0:dcf3c92487ca | 76 | decStr += '\0'; |
| idinor | 0:dcf3c92487ca | 77 | decStr += m_password; |
| idinor | 0:dcf3c92487ca | 78 | |
| idinor | 0:dcf3c92487ca | 79 | string auth = "AUTH PLAIN "; |
| idinor | 0:dcf3c92487ca | 80 | return auth.append(Base64::encode(decStr)); |
| idinor | 0:dcf3c92487ca | 81 | } |
| idinor | 0:dcf3c92487ca | 82 | |
| idinor | 0:dcf3c92487ca | 83 | void SMTPClient::setHeloDomain(const char* heloDomain) { |
| idinor | 0:dcf3c92487ca | 84 | m_heloDomain = string(heloDomain); |
| idinor | 0:dcf3c92487ca | 85 | } |
| idinor | 0:dcf3c92487ca | 86 | |
| idinor | 0:dcf3c92487ca | 87 | SMTPResult SMTPClient::send(EmailMessage* pMessage) { //Blocking |
| idinor | 0:dcf3c92487ca | 88 | doSend(pMessage); |
| idinor | 0:dcf3c92487ca | 89 | return blockingProcess(); |
| idinor | 0:dcf3c92487ca | 90 | } |
| idinor | 0:dcf3c92487ca | 91 | |
| idinor | 0:dcf3c92487ca | 92 | SMTPResult SMTPClient::send(EmailMessage* pMessage, void (*pMethod)(SMTPResult)) { //Non blocking |
| idinor | 0:dcf3c92487ca | 93 | setOnResult(pMethod); |
| idinor | 0:dcf3c92487ca | 94 | doSend(pMessage); |
| idinor | 0:dcf3c92487ca | 95 | return SMTP_PROCESSING; |
| idinor | 0:dcf3c92487ca | 96 | } |
| idinor | 0:dcf3c92487ca | 97 | |
| idinor | 0:dcf3c92487ca | 98 | void SMTPClient::doSend(EmailMessage* pMessage) { |
| idinor | 0:dcf3c92487ca | 99 | setup(pMessage); |
| idinor | 0:dcf3c92487ca | 100 | } |
| idinor | 0:dcf3c92487ca | 101 | |
| idinor | 0:dcf3c92487ca | 102 | void SMTPClient::setOnResult( void (*pMethod)(SMTPResult) ) { |
| idinor | 0:dcf3c92487ca | 103 | m_pCb = pMethod; |
| idinor | 0:dcf3c92487ca | 104 | m_pCbItem = NULL; |
| idinor | 0:dcf3c92487ca | 105 | m_pCbMeth = NULL; |
| idinor | 0:dcf3c92487ca | 106 | } |
| idinor | 0:dcf3c92487ca | 107 | |
| idinor | 0:dcf3c92487ca | 108 | void SMTPClient::setTimeout(int ms) { |
| idinor | 0:dcf3c92487ca | 109 | m_timeout = ms; |
| idinor | 0:dcf3c92487ca | 110 | } |
| idinor | 0:dcf3c92487ca | 111 | |
| idinor | 0:dcf3c92487ca | 112 | void SMTPClient::poll() { //Called by NetServices |
| idinor | 0:dcf3c92487ca | 113 | if ( (!m_closed) && (m_watchdog.read_ms() >= m_timeout) ) { |
| idinor | 0:dcf3c92487ca | 114 | onTimeout(); |
| idinor | 0:dcf3c92487ca | 115 | } |
| idinor | 0:dcf3c92487ca | 116 | } |
| idinor | 0:dcf3c92487ca | 117 | |
| idinor | 0:dcf3c92487ca | 118 | void SMTPClient::resetTimeout() { |
| idinor | 0:dcf3c92487ca | 119 | m_watchdog.reset(); |
| idinor | 0:dcf3c92487ca | 120 | m_watchdog.start(); |
| idinor | 0:dcf3c92487ca | 121 | } |
| idinor | 0:dcf3c92487ca | 122 | |
| idinor | 0:dcf3c92487ca | 123 | void SMTPClient::init() { //Create and setup socket if needed |
| idinor | 0:dcf3c92487ca | 124 | close(); //Remove previous elements |
| idinor | 0:dcf3c92487ca | 125 | if (!m_closed) //Already opened |
| idinor | 0:dcf3c92487ca | 126 | return; |
| idinor | 0:dcf3c92487ca | 127 | m_state = SMTP_HELLO; |
| idinor | 0:dcf3c92487ca | 128 | m_pTCPSocket = new TCPSocket; |
| idinor | 0:dcf3c92487ca | 129 | m_pTCPSocket->setOnEvent(this, &SMTPClient::onTCPSocketEvent); |
| idinor | 0:dcf3c92487ca | 130 | m_closed = false; |
| idinor | 0:dcf3c92487ca | 131 | m_posInMsg = 0; |
| idinor | 0:dcf3c92487ca | 132 | m_posInCRLF = 2; |
| idinor | 0:dcf3c92487ca | 133 | m_response = ""; |
| idinor | 0:dcf3c92487ca | 134 | } |
| idinor | 0:dcf3c92487ca | 135 | |
| idinor | 0:dcf3c92487ca | 136 | void SMTPClient::close() { |
| idinor | 0:dcf3c92487ca | 137 | if (m_closed) |
| idinor | 0:dcf3c92487ca | 138 | return; |
| idinor | 0:dcf3c92487ca | 139 | m_state = SMTP_CLOSED; |
| idinor | 0:dcf3c92487ca | 140 | m_closed = true; //Prevent recursive calling or calling on an object being destructed by someone else |
| idinor | 0:dcf3c92487ca | 141 | m_watchdog.stop(); //Stop timeout |
| idinor | 0:dcf3c92487ca | 142 | m_watchdog.reset(); |
| idinor | 0:dcf3c92487ca | 143 | m_pTCPSocket->resetOnEvent(); |
| idinor | 0:dcf3c92487ca | 144 | m_pTCPSocket->close(); |
| idinor | 0:dcf3c92487ca | 145 | delete m_pTCPSocket; |
| idinor | 0:dcf3c92487ca | 146 | m_pTCPSocket = NULL; |
| idinor | 0:dcf3c92487ca | 147 | if ( m_pDnsReq ) { |
| idinor | 0:dcf3c92487ca | 148 | m_pDnsReq->close(); |
| idinor | 0:dcf3c92487ca | 149 | delete m_pDnsReq; |
| idinor | 0:dcf3c92487ca | 150 | m_pDnsReq = NULL; |
| idinor | 0:dcf3c92487ca | 151 | } |
| idinor | 0:dcf3c92487ca | 152 | } |
| idinor | 0:dcf3c92487ca | 153 | |
| idinor | 0:dcf3c92487ca | 154 | void SMTPClient::setServer(const Host& host) { //Setup request, make DNS Req if necessary |
| idinor | 0:dcf3c92487ca | 155 | m_server = host; |
| idinor | 0:dcf3c92487ca | 156 | } |
| idinor | 0:dcf3c92487ca | 157 | |
| idinor | 0:dcf3c92487ca | 158 | void SMTPClient::setup(EmailMessage* pMessage) { //Setup request, make DNS Req if necessary |
| idinor | 0:dcf3c92487ca | 159 | |
| idinor | 0:dcf3c92487ca | 160 | init(); //Initialize client in known state, create socket |
| idinor | 0:dcf3c92487ca | 161 | m_pMessage = pMessage; |
| idinor | 0:dcf3c92487ca | 162 | resetTimeout(); |
| idinor | 0:dcf3c92487ca | 163 | |
| idinor | 0:dcf3c92487ca | 164 | m_To = m_pMessage->m_lTo.begin(); // Point to first to recipient in TO list |
| idinor | 0:dcf3c92487ca | 165 | |
| idinor | 0:dcf3c92487ca | 166 | //If port set to zero then use default port |
| idinor | 0:dcf3c92487ca | 167 | if (!m_server.getPort()) { |
| idinor | 0:dcf3c92487ca | 168 | m_server.setPort(SMTP_PORT); |
| idinor | 0:dcf3c92487ca | 169 | DBG("Using default port %d\n", SMTP_PORT); |
| idinor | 0:dcf3c92487ca | 170 | } |
| idinor | 0:dcf3c92487ca | 171 | |
| idinor | 0:dcf3c92487ca | 172 | if (m_server.getIp().isNull()) { |
| idinor | 0:dcf3c92487ca | 173 | //DNS query required |
| idinor | 0:dcf3c92487ca | 174 | m_pDnsReq = new DNSRequest(); |
| idinor | 0:dcf3c92487ca | 175 | DBG("DNSRequest %p\r\n", m_pDnsReq); |
| idinor | 0:dcf3c92487ca | 176 | m_pDnsReq->setOnReply(this, &SMTPClient::onDNSReply); |
| idinor | 0:dcf3c92487ca | 177 | m_pDnsReq->resolve(&m_server); |
| idinor | 0:dcf3c92487ca | 178 | return; |
| idinor | 0:dcf3c92487ca | 179 | } else |
| idinor | 0:dcf3c92487ca | 180 | connect(); |
| idinor | 0:dcf3c92487ca | 181 | |
| idinor | 0:dcf3c92487ca | 182 | } |
| idinor | 0:dcf3c92487ca | 183 | |
| idinor | 0:dcf3c92487ca | 184 | void SMTPClient::connect() { //Start Connection |
| idinor | 0:dcf3c92487ca | 185 | resetTimeout(); |
| idinor | 0:dcf3c92487ca | 186 | DBG("Connecting...\n"); |
| idinor | 0:dcf3c92487ca | 187 | m_pTCPSocket->connect(m_server); |
| idinor | 0:dcf3c92487ca | 188 | } |
| idinor | 0:dcf3c92487ca | 189 | |
| idinor | 0:dcf3c92487ca | 190 | void SMTPClient::onTCPSocketEvent(TCPSocketEvent e) { |
| idinor | 0:dcf3c92487ca | 191 | |
| idinor | 0:dcf3c92487ca | 192 | DBG("Event %d in SMTPClient::onTCPSocketEvent()\n", e); |
| idinor | 0:dcf3c92487ca | 193 | |
| idinor | 0:dcf3c92487ca | 194 | if (m_closed) { |
| idinor | 0:dcf3c92487ca | 195 | DBG("WARN: Discarded\n"); |
| idinor | 0:dcf3c92487ca | 196 | return; |
| idinor | 0:dcf3c92487ca | 197 | } |
| idinor | 0:dcf3c92487ca | 198 | |
| idinor | 0:dcf3c92487ca | 199 | switch (e) { |
| idinor | 0:dcf3c92487ca | 200 | case TCPSOCKET_READABLE: |
| idinor | 0:dcf3c92487ca | 201 | resetTimeout(); |
| idinor | 0:dcf3c92487ca | 202 | process(false); |
| idinor | 0:dcf3c92487ca | 203 | break; |
| idinor | 0:dcf3c92487ca | 204 | case TCPSOCKET_WRITEABLE: |
| idinor | 0:dcf3c92487ca | 205 | resetTimeout(); |
| idinor | 0:dcf3c92487ca | 206 | process(true); |
| idinor | 0:dcf3c92487ca | 207 | break; |
| idinor | 0:dcf3c92487ca | 208 | case TCPSOCKET_CONTIMEOUT: |
| idinor | 0:dcf3c92487ca | 209 | case TCPSOCKET_CONRST: |
| idinor | 0:dcf3c92487ca | 210 | case TCPSOCKET_CONABRT: |
| idinor | 0:dcf3c92487ca | 211 | case TCPSOCKET_ERROR: |
| idinor | 0:dcf3c92487ca | 212 | DBG("Connection error in SMTP Client.\n"); |
| idinor | 0:dcf3c92487ca | 213 | close(); |
| idinor | 0:dcf3c92487ca | 214 | onResult(SMTP_DISC); |
| idinor | 0:dcf3c92487ca | 215 | break; |
| idinor | 0:dcf3c92487ca | 216 | case TCPSOCKET_DISCONNECTED: |
| idinor | 0:dcf3c92487ca | 217 | if (m_state != SMTP_BYE) { |
| idinor | 0:dcf3c92487ca | 218 | DBG("Connection error in SMTP Client.\n"); |
| idinor | 0:dcf3c92487ca | 219 | close(); |
| idinor | 0:dcf3c92487ca | 220 | onResult(SMTP_DISC); |
| idinor | 0:dcf3c92487ca | 221 | } |
| idinor | 0:dcf3c92487ca | 222 | break; |
| idinor | 0:dcf3c92487ca | 223 | } |
| idinor | 0:dcf3c92487ca | 224 | } |
| idinor | 0:dcf3c92487ca | 225 | |
| idinor | 0:dcf3c92487ca | 226 | void SMTPClient::onDNSReply(DNSReply r) { |
| idinor | 0:dcf3c92487ca | 227 | if (m_closed) { |
| idinor | 0:dcf3c92487ca | 228 | DBG("WARN: Discarded\n"); |
| idinor | 0:dcf3c92487ca | 229 | return; |
| idinor | 0:dcf3c92487ca | 230 | } |
| idinor | 0:dcf3c92487ca | 231 | |
| idinor | 0:dcf3c92487ca | 232 | if ( r != DNS_FOUND ) { |
| idinor | 0:dcf3c92487ca | 233 | DBG("Could not resolve hostname.\n"); |
| idinor | 0:dcf3c92487ca | 234 | close(); |
| idinor | 0:dcf3c92487ca | 235 | onResult(SMTP_DNS); |
| idinor | 0:dcf3c92487ca | 236 | return; |
| idinor | 0:dcf3c92487ca | 237 | } |
| idinor | 0:dcf3c92487ca | 238 | |
| idinor | 0:dcf3c92487ca | 239 | DBG("DNS Resolved to %d.%d.%d.%d\n", m_server.getIp()[0], m_server.getIp()[1], m_server.getIp()[2], m_server.getIp()[3]); |
| idinor | 0:dcf3c92487ca | 240 | //If no error, m_server has been updated by m_pDnsReq so we're set to go ! |
| idinor | 0:dcf3c92487ca | 241 | m_pDnsReq->close(); |
| idinor | 0:dcf3c92487ca | 242 | delete m_pDnsReq; |
| idinor | 0:dcf3c92487ca | 243 | m_pDnsReq = NULL; |
| idinor | 0:dcf3c92487ca | 244 | connect(); |
| idinor | 0:dcf3c92487ca | 245 | } |
| idinor | 0:dcf3c92487ca | 246 | |
| idinor | 0:dcf3c92487ca | 247 | void SMTPClient::onResult(SMTPResult r) { //Called when exchange completed or on failure |
| idinor | 0:dcf3c92487ca | 248 | if (m_pCbItem && m_pCbMeth) |
| idinor | 0:dcf3c92487ca | 249 | (m_pCbItem->*m_pCbMeth)(r); |
| idinor | 0:dcf3c92487ca | 250 | else if (m_pCb) |
| idinor | 0:dcf3c92487ca | 251 | m_pCb(r); |
| idinor | 0:dcf3c92487ca | 252 | m_blockingResult = r; //Blocking mode |
| idinor | 0:dcf3c92487ca | 253 | } |
| idinor | 0:dcf3c92487ca | 254 | |
| idinor | 0:dcf3c92487ca | 255 | void SMTPClient::onTimeout() { //Connection has timed out |
| idinor | 0:dcf3c92487ca | 256 | DBG("Timed out.\n"); |
| idinor | 0:dcf3c92487ca | 257 | close(); |
| idinor | 0:dcf3c92487ca | 258 | onResult(SMTP_TIMEOUT); |
| idinor | 0:dcf3c92487ca | 259 | } |
| idinor | 0:dcf3c92487ca | 260 | |
| idinor | 0:dcf3c92487ca | 261 | SMTPResult SMTPClient::blockingProcess() { //Called in blocking mode, calls Net::poll() until return code is available |
| idinor | 0:dcf3c92487ca | 262 | //Disable callbacks |
| idinor | 0:dcf3c92487ca | 263 | m_pCb = NULL; |
| idinor | 0:dcf3c92487ca | 264 | m_pCbItem = NULL; |
| idinor | 0:dcf3c92487ca | 265 | m_pCbMeth = NULL; |
| idinor | 0:dcf3c92487ca | 266 | m_blockingResult = SMTP_PROCESSING; |
| idinor | 0:dcf3c92487ca | 267 | do { |
| idinor | 0:dcf3c92487ca | 268 | Net::poll(); |
| idinor | 0:dcf3c92487ca | 269 | } while (m_blockingResult == SMTP_PROCESSING); |
| idinor | 0:dcf3c92487ca | 270 | Net::poll(); //Necessary for cleanup |
| idinor | 0:dcf3c92487ca | 271 | return m_blockingResult; |
| idinor | 0:dcf3c92487ca | 272 | } |
| idinor | 0:dcf3c92487ca | 273 | |
| idinor | 0:dcf3c92487ca | 274 | int SMTPClient::rc(char* buf) { //Parse return code |
| idinor | 0:dcf3c92487ca | 275 | int rc; |
| idinor | 0:dcf3c92487ca | 276 | int len = sscanf(buf, "%d %*[^\r\n]\r\n", &rc); |
| idinor | 0:dcf3c92487ca | 277 | if (len != 1) |
| idinor | 0:dcf3c92487ca | 278 | return -1; |
| idinor | 0:dcf3c92487ca | 279 | return rc; |
| idinor | 0:dcf3c92487ca | 280 | } |
| idinor | 0:dcf3c92487ca | 281 | |
| idinor | 0:dcf3c92487ca | 282 | bool SMTPClient::okPostAuthentication(int code) { |
| idinor | 0:dcf3c92487ca | 283 | return (code == 250) || (code == 235); |
| idinor | 0:dcf3c92487ca | 284 | } |
| idinor | 0:dcf3c92487ca | 285 | |
| idinor | 0:dcf3c92487ca | 286 | void SMTPClient::process(bool writeable) { //Main state-machine |
| idinor | 0:dcf3c92487ca | 287 | |
| idinor | 0:dcf3c92487ca | 288 | DBG("In state %d, writeable %d\n", m_state, writeable); |
| idinor | 0:dcf3c92487ca | 289 | |
| idinor | 0:dcf3c92487ca | 290 | // If writeable but nothing to write then return |
| idinor | 0:dcf3c92487ca | 291 | if (writeable && (m_state != SMTP_BODYMORE)) |
| idinor | 0:dcf3c92487ca | 292 | return; |
| idinor | 0:dcf3c92487ca | 293 | |
| idinor | 0:dcf3c92487ca | 294 | // If not writeable then read |
| idinor | 0:dcf3c92487ca | 295 | char buf[BUF_SIZE] = {0}; |
| idinor | 0:dcf3c92487ca | 296 | int responseCode = -1; |
| idinor | 0:dcf3c92487ca | 297 | if (!writeable) { |
| idinor | 0:dcf3c92487ca | 298 | bool firstBuf = true; |
| idinor | 0:dcf3c92487ca | 299 | int read; |
| idinor | 0:dcf3c92487ca | 300 | do { // read until nothing left but only process the response from first buffer |
| idinor | 0:dcf3c92487ca | 301 | read = m_pTCPSocket->recv(buf, BUF_SIZE - 1); |
| idinor | 0:dcf3c92487ca | 302 | if (firstBuf) { |
| idinor | 0:dcf3c92487ca | 303 | m_response = string(buf); |
| idinor | 0:dcf3c92487ca | 304 | responseCode = rc(buf); |
| idinor | 0:dcf3c92487ca | 305 | firstBuf = false; |
| idinor | 0:dcf3c92487ca | 306 | DBG("Response %d %d | %s", read, responseCode, buf); |
| idinor | 0:dcf3c92487ca | 307 | } |
| idinor | 0:dcf3c92487ca | 308 | } while (read > 0); |
| idinor | 0:dcf3c92487ca | 309 | } |
| idinor | 0:dcf3c92487ca | 310 | |
| idinor | 0:dcf3c92487ca | 311 | switch (m_state) { |
| idinor | 0:dcf3c92487ca | 312 | case SMTP_HELLO: |
| idinor | 0:dcf3c92487ca | 313 | if ( responseCode != 220 ) { |
| idinor | 0:dcf3c92487ca | 314 | close(); |
| idinor | 0:dcf3c92487ca | 315 | onResult(SMTP_PRTCL); |
| idinor | 0:dcf3c92487ca | 316 | return; |
| idinor | 0:dcf3c92487ca | 317 | } |
| idinor | 0:dcf3c92487ca | 318 | char* helloCommand; |
| idinor | 0:dcf3c92487ca | 319 | if (m_auth == SMTP_AUTH_NONE) { |
| idinor | 0:dcf3c92487ca | 320 | helloCommand = "HELO"; |
| idinor | 0:dcf3c92487ca | 321 | m_state = SMTP_FROM; |
| idinor | 0:dcf3c92487ca | 322 | } else { |
| idinor | 0:dcf3c92487ca | 323 | helloCommand = "EHLO"; |
| idinor | 0:dcf3c92487ca | 324 | m_state = SMTP_AUTH; |
| idinor | 0:dcf3c92487ca | 325 | } |
| idinor | 0:dcf3c92487ca | 326 | snprintf(buf, BUF_SIZE, "%s %s\r\n", helloCommand, m_heloDomain.c_str()); |
| idinor | 0:dcf3c92487ca | 327 | break; |
| idinor | 0:dcf3c92487ca | 328 | case SMTP_AUTH: |
| idinor | 0:dcf3c92487ca | 329 | if ( responseCode != 250 ) { |
| idinor | 0:dcf3c92487ca | 330 | close(); |
| idinor | 0:dcf3c92487ca | 331 | onResult(SMTP_PRTCL); |
| idinor | 0:dcf3c92487ca | 332 | return; |
| idinor | 0:dcf3c92487ca | 333 | } |
| idinor | 0:dcf3c92487ca | 334 | snprintf(buf, BUF_SIZE, "%s\r\n", encodePlainAuth().c_str()); |
| idinor | 0:dcf3c92487ca | 335 | m_state = SMTP_FROM; |
| idinor | 0:dcf3c92487ca | 336 | break; |
| idinor | 0:dcf3c92487ca | 337 | case SMTP_FROM: |
| idinor | 0:dcf3c92487ca | 338 | if (!okPostAuthentication(responseCode)) { |
| idinor | 0:dcf3c92487ca | 339 | close(); |
| idinor | 0:dcf3c92487ca | 340 | onResult(SMTP_PRTCL); |
| idinor | 0:dcf3c92487ca | 341 | return; |
| idinor | 0:dcf3c92487ca | 342 | } |
| idinor | 0:dcf3c92487ca | 343 | snprintf(buf, BUF_SIZE, "MAIL FROM:<%s>\r\n", m_pMessage->m_from.c_str()); |
| idinor | 0:dcf3c92487ca | 344 | m_state = SMTP_TO; |
| idinor | 0:dcf3c92487ca | 345 | break; |
| idinor | 0:dcf3c92487ca | 346 | case SMTP_TO: |
| idinor | 0:dcf3c92487ca | 347 | if ( responseCode != 250 ) { |
| idinor | 0:dcf3c92487ca | 348 | close(); |
| idinor | 0:dcf3c92487ca | 349 | onResult(SMTP_PRTCL); |
| idinor | 0:dcf3c92487ca | 350 | return; |
| idinor | 0:dcf3c92487ca | 351 | } |
| idinor | 0:dcf3c92487ca | 352 | snprintf(buf, BUF_SIZE, "RCPT TO:<%s>\r\n", (m_To++)->c_str()); |
| idinor | 0:dcf3c92487ca | 353 | if (m_To == m_pMessage->m_lTo.end()) |
| idinor | 0:dcf3c92487ca | 354 | m_state = SMTP_DATA; |
| idinor | 0:dcf3c92487ca | 355 | break; |
| idinor | 0:dcf3c92487ca | 356 | case SMTP_DATA: |
| idinor | 0:dcf3c92487ca | 357 | if ( responseCode != 250 ) { |
| idinor | 0:dcf3c92487ca | 358 | close(); |
| idinor | 0:dcf3c92487ca | 359 | onResult(SMTP_PRTCL); |
| idinor | 0:dcf3c92487ca | 360 | return; |
| idinor | 0:dcf3c92487ca | 361 | } |
| idinor | 0:dcf3c92487ca | 362 | snprintf(buf, BUF_SIZE, "DATA\r\n"); |
| idinor | 0:dcf3c92487ca | 363 | m_state = SMTP_BODY; |
| idinor | 0:dcf3c92487ca | 364 | break; |
| idinor | 0:dcf3c92487ca | 365 | case SMTP_BODY: |
| idinor | 0:dcf3c92487ca | 366 | if ( responseCode != 354 ) { |
| idinor | 0:dcf3c92487ca | 367 | close(); |
| idinor | 0:dcf3c92487ca | 368 | onResult(SMTP_PRTCL); |
| idinor | 0:dcf3c92487ca | 369 | return; |
| idinor | 0:dcf3c92487ca | 370 | } |
| idinor | 0:dcf3c92487ca | 371 | m_state = SMTP_BODYMORE; |
| idinor | 0:dcf3c92487ca | 372 | buf[0] = '\0'; // clear buffer before carrying on into next state |
| idinor | 0:dcf3c92487ca | 373 | case SMTP_BODYMORE: |
| idinor | 0:dcf3c92487ca | 374 | if (strlen(buf) > 0) { // sending interrupted by a server response |
| idinor | 0:dcf3c92487ca | 375 | close(); |
| idinor | 0:dcf3c92487ca | 376 | onResult(SMTP_PRTCL); |
| idinor | 0:dcf3c92487ca | 377 | return; |
| idinor | 0:dcf3c92487ca | 378 | } |
| idinor | 0:dcf3c92487ca | 379 | |
| idinor | 0:dcf3c92487ca | 380 | if ( m_posInMsg < m_pMessage->m_content.length() ) { // if still something to send |
| idinor | 0:dcf3c92487ca | 381 | int sendLen = 0; |
| idinor | 0:dcf3c92487ca | 382 | while (sendLen < BUF_SIZE - 1) { // - 1 to allow room for extra dot or CR or LF |
| idinor | 0:dcf3c92487ca | 383 | char c = m_pMessage->m_content.at(m_posInMsg++); |
| idinor | 0:dcf3c92487ca | 384 | switch (c) { // thanks ExtraDotOutputStream.java (with extra check for naked CR) |
| idinor | 0:dcf3c92487ca | 385 | case '.': |
| idinor | 0:dcf3c92487ca | 386 | if (m_posInCRLF == 2) // add extra dot |
| idinor | 0:dcf3c92487ca | 387 | buf[sendLen++] = '.'; |
| idinor | 0:dcf3c92487ca | 388 | m_posInCRLF = 0; |
| idinor | 0:dcf3c92487ca | 389 | break; |
| idinor | 0:dcf3c92487ca | 390 | case '\r': |
| idinor | 0:dcf3c92487ca | 391 | if (m_posInCRLF == 1) // two CR in a row, so insert an LF first |
| idinor | 0:dcf3c92487ca | 392 | buf[sendLen++] = '\n'; |
| idinor | 0:dcf3c92487ca | 393 | m_posInCRLF = 1; |
| idinor | 0:dcf3c92487ca | 394 | break; |
| idinor | 0:dcf3c92487ca | 395 | case '\n': |
| idinor | 0:dcf3c92487ca | 396 | if (m_posInCRLF != 1) // convert naked LF to CRLF |
| idinor | 0:dcf3c92487ca | 397 | buf[sendLen++] = '\r'; |
| idinor | 0:dcf3c92487ca | 398 | m_posInCRLF = 2; |
| idinor | 0:dcf3c92487ca | 399 | break; |
| idinor | 0:dcf3c92487ca | 400 | default: |
| idinor | 0:dcf3c92487ca | 401 | if (m_posInCRLF == 1) { // convert naked CR to CRLF |
| idinor | 0:dcf3c92487ca | 402 | buf[sendLen++] = '\n'; |
| idinor | 0:dcf3c92487ca | 403 | m_posInCRLF = 2; |
| idinor | 0:dcf3c92487ca | 404 | } else |
| idinor | 0:dcf3c92487ca | 405 | m_posInCRLF = 0; // we're no longer at the start of a line |
| idinor | 0:dcf3c92487ca | 406 | break; |
| idinor | 0:dcf3c92487ca | 407 | } |
| idinor | 0:dcf3c92487ca | 408 | buf[sendLen++] = c; |
| idinor | 0:dcf3c92487ca | 409 | if ( m_posInMsg == m_pMessage->m_content.length() ) |
| idinor | 0:dcf3c92487ca | 410 | break; |
| idinor | 0:dcf3c92487ca | 411 | } |
| idinor | 0:dcf3c92487ca | 412 | m_pTCPSocket->send( buf, sendLen ); |
| idinor | 0:dcf3c92487ca | 413 | DBG("Sending %d bytes of processed message content\n", sendLen); |
| idinor | 0:dcf3c92487ca | 414 | } else { |
| idinor | 0:dcf3c92487ca | 415 | if (m_posInCRLF == 0) |
| idinor | 0:dcf3c92487ca | 416 | snprintf(buf, BUF_SIZE, "\r\n.\r\n"); |
| idinor | 0:dcf3c92487ca | 417 | else if (m_posInCRLF == 1) |
| idinor | 0:dcf3c92487ca | 418 | snprintf(buf, BUF_SIZE, "\n.\r\n"); |
| idinor | 0:dcf3c92487ca | 419 | else |
| idinor | 0:dcf3c92487ca | 420 | snprintf(buf, BUF_SIZE, ".\r\n"); |
| idinor | 0:dcf3c92487ca | 421 | m_state = SMTP_EOF; |
| idinor | 0:dcf3c92487ca | 422 | } |
| idinor | 0:dcf3c92487ca | 423 | break; |
| idinor | 0:dcf3c92487ca | 424 | case SMTP_EOF: |
| idinor | 0:dcf3c92487ca | 425 | if ( responseCode != 250 ) { |
| idinor | 0:dcf3c92487ca | 426 | close(); |
| idinor | 0:dcf3c92487ca | 427 | onResult(SMTP_PRTCL); |
| idinor | 0:dcf3c92487ca | 428 | return; |
| idinor | 0:dcf3c92487ca | 429 | } |
| idinor | 0:dcf3c92487ca | 430 | snprintf(buf, BUF_SIZE, "QUIT\r\n"); |
| idinor | 0:dcf3c92487ca | 431 | m_state = SMTP_BYE; |
| idinor | 0:dcf3c92487ca | 432 | break; |
| idinor | 0:dcf3c92487ca | 433 | case SMTP_BYE: |
| idinor | 0:dcf3c92487ca | 434 | if ( responseCode != 221 ) { |
| idinor | 0:dcf3c92487ca | 435 | close(); |
| idinor | 0:dcf3c92487ca | 436 | onResult(SMTP_PRTCL); |
| idinor | 0:dcf3c92487ca | 437 | return; |
| idinor | 0:dcf3c92487ca | 438 | } |
| idinor | 0:dcf3c92487ca | 439 | close(); |
| idinor | 0:dcf3c92487ca | 440 | onResult(SMTP_OK); |
| idinor | 0:dcf3c92487ca | 441 | return; |
| idinor | 0:dcf3c92487ca | 442 | } |
| idinor | 0:dcf3c92487ca | 443 | |
| idinor | 0:dcf3c92487ca | 444 | if ( m_state != SMTP_BODYMORE ) { |
| idinor | 0:dcf3c92487ca | 445 | DBG("Sending | %s", buf); |
| idinor | 0:dcf3c92487ca | 446 | m_pTCPSocket->send( buf, strlen(buf) ); |
| idinor | 0:dcf3c92487ca | 447 | } |
| idinor | 0:dcf3c92487ca | 448 | |
| idinor | 0:dcf3c92487ca | 449 | } |
| idinor | 0:dcf3c92487ca | 450 | |
| idinor | 0:dcf3c92487ca | 451 | string& SMTPClient::getLastResponse() { // Return last response set on result |
| idinor | 0:dcf3c92487ca | 452 | return m_response; |
| idinor | 0:dcf3c92487ca | 453 | } |