1#ifndef HEADER_CURL_SMTP_H 2#define HEADER_CURL_SMTP_H 3/*************************************************************************** 4 * _ _ ____ _ 5 * Project ___| | | | _ \| | 6 * / __| | | | |_) | | 7 * | (__| |_| | _ <| |___ 8 * \___|\___/|_| \_\_____| 9 * 10 * Copyright (C) 2009 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al. 11 * 12 * This software is licensed as described in the file COPYING, which 13 * you should have received as part of this distribution. The terms 14 * are also available at http://curl.haxx.se/docs/copyright.html. 15 * 16 * You may opt to use, copy, modify, merge, publish, distribute and/or sell 17 * copies of the Software, and permit persons to whom the Software is 18 * furnished to do so, under the terms of the COPYING file. 19 * 20 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 21 * KIND, either express or implied. 22 * 23 ***************************************************************************/ 24 25#include "pingpong.h" 26 27/**************************************************************************** 28 * SMTP unique setup 29 ***************************************************************************/ 30typedef enum { 31 SMTP_STOP, /* do nothing state, stops the state machine */ 32 SMTP_SERVERGREET, /* waiting for the initial greeting immediately after 33 a connect */ 34 SMTP_EHLO, 35 SMTP_HELO, 36 SMTP_STARTTLS, 37 SMTP_UPGRADETLS, /* asynchronously upgrade the connection to SSL/TLS 38 (multi mode only) */ 39 SMTP_AUTH_PLAIN, 40 SMTP_AUTH_LOGIN, 41 SMTP_AUTH_LOGIN_PASSWD, 42 SMTP_AUTH_CRAMMD5, 43 SMTP_AUTH_DIGESTMD5, 44 SMTP_AUTH_DIGESTMD5_RESP, 45 SMTP_AUTH_NTLM, 46 SMTP_AUTH_NTLM_TYPE2MSG, 47 SMTP_AUTH_XOAUTH2, 48 SMTP_AUTH_CANCEL, 49 SMTP_AUTH_FINAL, 50 SMTP_COMMAND, /* VRFY, EXPN, NOOP, RSET and HELP */ 51 SMTP_MAIL, /* MAIL FROM */ 52 SMTP_RCPT, /* RCPT TO */ 53 SMTP_DATA, 54 SMTP_POSTDATA, 55 SMTP_QUIT, 56 SMTP_LAST /* never used */ 57} smtpstate; 58 59/* This SMTP struct is used in the SessionHandle. All SMTP data that is 60 connection-oriented must be in smtp_conn to properly deal with the fact that 61 perhaps the SessionHandle is changed between the times the connection is 62 used. */ 63struct SMTP { 64 curl_pp_transfer transfer; 65 char *custom; /* Custom Request */ 66 struct curl_slist *rcpt; /* Recipient list */ 67 size_t eob; /* Number of bytes of the EOB (End Of Body) that 68 have been received so far */ 69 bool trailing_crlf; /* Specifies if the tailing CRLF is present */ 70}; 71 72/* smtp_conn is used for struct connection-oriented data in the connectdata 73 struct */ 74struct smtp_conn { 75 struct pingpong pp; 76 smtpstate state; /* Always use smtp.c:state() to change state! */ 77 bool ssldone; /* Is connect() over SSL done? */ 78 char *domain; /* Client address/name to send in the EHLO */ 79 unsigned int authmechs; /* Accepted authentication mechanisms */ 80 unsigned int prefmech; /* Preferred authentication mechanism */ 81 unsigned int authused; /* Auth mechanism used for the connection */ 82 bool tls_supported; /* StartTLS capability supported by server */ 83 bool size_supported; /* If server supports SIZE extension according to 84 RFC 1870 */ 85}; 86 87extern const struct Curl_handler Curl_handler_smtp; 88extern const struct Curl_handler Curl_handler_smtps; 89 90/* this is the 5-bytes End-Of-Body marker for SMTP */ 91#define SMTP_EOB "\x0d\x0a\x2e\x0d\x0a" 92#define SMTP_EOB_LEN 5 93#define SMTP_EOB_FIND_LEN 3 94 95/* if found in data, replace it with this string instead */ 96#define SMTP_EOB_REPL "\x0d\x0a\x2e\x2e" 97#define SMTP_EOB_REPL_LEN 4 98 99CURLcode Curl_smtp_escape_eob(struct connectdata *conn, ssize_t nread); 100 101#endif /* HEADER_CURL_SMTP_H */ 102