| 1 | #ifndef HEADER_CURL_SMTP_H
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| 2 | #define HEADER_CURL_SMTP_H
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| 3 | /***************************************************************************
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| 4 | * _ _ ____ _
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| 5 | * Project ___| | | | _ \| |
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| 6 | * / __| | | | |_) | |
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| 7 | * | (__| |_| | _ <| |___
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| 8 | * \___|\___/|_| \_\_____|
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| 9 | *
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| 10 | * Copyright (C) 2009 - 2014, Daniel Stenberg, <[email protected]>, et al.
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| 11 | *
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| 12 | * This software is licensed as described in the file COPYING, which
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| 13 | * you should have received as part of this distribution. The terms
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| 14 | * are also available at https://curl.haxx.se/docs/copyright.html.
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| 15 | *
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| 16 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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| 17 | * copies of the Software, and permit persons to whom the Software is
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| 18 | * furnished to do so, under the terms of the COPYING file.
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| 19 | *
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| 20 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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| 21 | * KIND, either express or implied.
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| 22 | *
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| 23 | ***************************************************************************/
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| 24 |
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| 25 | #include "pingpong.h"
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| 26 | #include "curl_sasl.h"
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| 27 |
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| 28 | /****************************************************************************
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| 29 | * SMTP unique setup
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| 30 | ***************************************************************************/
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| 31 | typedef enum {
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| 32 | SMTP_STOP, /* do nothing state, stops the state machine */
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| 33 | SMTP_SERVERGREET, /* waiting for the initial greeting immediately after
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| 34 | a connect */
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| 35 | SMTP_EHLO,
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| 36 | SMTP_HELO,
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| 37 | SMTP_STARTTLS,
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| 38 | SMTP_UPGRADETLS, /* asynchronously upgrade the connection to SSL/TLS
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| 39 | (multi mode only) */
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| 40 | SMTP_AUTH,
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| 41 | SMTP_COMMAND, /* VRFY, EXPN, NOOP, RSET and HELP */
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| 42 | SMTP_MAIL, /* MAIL FROM */
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| 43 | SMTP_RCPT, /* RCPT TO */
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| 44 | SMTP_DATA,
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| 45 | SMTP_POSTDATA,
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| 46 | SMTP_QUIT,
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| 47 | SMTP_LAST /* never used */
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| 48 | } smtpstate;
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| 49 |
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| 50 | /* This SMTP struct is used in the Curl_easy. All SMTP data that is
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| 51 | connection-oriented must be in smtp_conn to properly deal with the fact that
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| 52 | perhaps the Curl_easy is changed between the times the connection is
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| 53 | used. */
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| 54 | struct SMTP {
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| 55 | curl_pp_transfer transfer;
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| 56 | char *custom; /* Custom Request */
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| 57 | struct curl_slist *rcpt; /* Recipient list */
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| 58 | size_t eob; /* Number of bytes of the EOB (End Of Body) that
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| 59 | have been received so far */
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| 60 | bool trailing_crlf; /* Specifies if the tailing CRLF is present */
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| 61 | };
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| 62 |
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| 63 | /* smtp_conn is used for struct connection-oriented data in the connectdata
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| 64 | struct */
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| 65 | struct smtp_conn {
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| 66 | struct pingpong pp;
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| 67 | smtpstate state; /* Always use smtp.c:state() to change state! */
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| 68 | bool ssldone; /* Is connect() over SSL done? */
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| 69 | char *domain; /* Client address/name to send in the EHLO */
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| 70 | struct SASL sasl; /* SASL-related storage */
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| 71 | bool tls_supported; /* StartTLS capability supported by server */
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| 72 | bool size_supported; /* If server supports SIZE extension according to
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| 73 | RFC 1870 */
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| 74 | bool auth_supported; /* AUTH capability supported by server */
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| 75 | };
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| 76 |
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| 77 | extern const struct Curl_handler Curl_handler_smtp;
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| 78 | extern const struct Curl_handler Curl_handler_smtps;
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| 79 |
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| 80 | /* this is the 5-bytes End-Of-Body marker for SMTP */
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| 81 | #define SMTP_EOB "\x0d\x0a\x2e\x0d\x0a"
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| 82 | #define SMTP_EOB_LEN 5
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| 83 | #define SMTP_EOB_FIND_LEN 3
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| 84 |
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| 85 | /* if found in data, replace it with this string instead */
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| 86 | #define SMTP_EOB_REPL "\x0d\x0a\x2e\x2e"
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| 87 | #define SMTP_EOB_REPL_LEN 4
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| 88 |
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| 89 | CURLcode Curl_smtp_escape_eob(struct connectdata *conn, const ssize_t nread);
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| 90 |
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| 91 | #endif /* HEADER_CURL_SMTP_H */
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