2009-12-12 22:54:01 +01:00
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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2013-01-06 23:32:05 +01:00
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* Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
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2009-12-12 22:54:01 +01:00
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at http://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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2013-01-25 00:41:57 +01:00
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* RFC1870 SMTP Service Extension for Message Size
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2010-04-19 11:16:30 +02:00
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* RFC2195 CRAM-MD5 authentication
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2012-03-30 22:50:56 +02:00
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* RFC2831 DIGEST-MD5 authentication
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2013-01-25 00:41:57 +01:00
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* RFC3207 SMTP over TLS
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2013-01-22 19:37:12 +01:00
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* RFC4422 Simple Authentication and Security Layer (SASL)
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2010-04-19 11:16:30 +02:00
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* RFC4616 PLAIN authentication
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2013-01-25 00:41:57 +01:00
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* RFC4954 SMTP Authentication
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* RFC5321 SMTP protocol
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2013-08-25 19:17:58 +02:00
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* RFC6749 OAuth 2.0 Authorization Framework
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2013-04-13 17:21:58 +02:00
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* Draft SMTP URL Interface
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2009-12-12 22:54:01 +01:00
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*
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***************************************************************************/
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2013-01-06 19:06:49 +01:00
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#include "curl_setup.h"
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2009-12-12 22:54:01 +01:00
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#ifndef CURL_DISABLE_SMTP
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#ifdef HAVE_ARPA_INET_H
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#include <arpa/inet.h>
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#endif
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#ifdef HAVE_UTSNAME_H
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#include <sys/utsname.h>
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#endif
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#ifdef HAVE_NETDB_H
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#include <netdb.h>
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#endif
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2009-12-30 18:59:56 +01:00
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#ifdef __VMS
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2009-12-12 22:54:01 +01:00
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#include <in.h>
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#include <inet.h>
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#endif
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#if (defined(NETWARE) && defined(__NOVELL_LIBC__))
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#undef in_addr_t
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#define in_addr_t unsigned long
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#endif
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#include <curl/curl.h>
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2013-01-04 02:50:28 +01:00
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#include "urldata.h"
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#include "sendf.h"
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#include "if2ip.h"
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#include "hostip.h"
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#include "progress.h"
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#include "transfer.h"
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#include "escape.h"
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#include "http.h" /* for HTTP proxy tunnel stuff */
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#include "socks.h"
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#include "smtp.h"
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#include "strtoofft.h"
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#include "strequal.h"
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#include "sslgen.h"
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#include "connect.h"
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#include "strerror.h"
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#include "select.h"
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#include "multiif.h"
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#include "url.h"
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#include "rawstr.h"
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2010-07-30 00:47:49 +02:00
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#include "curl_gethostname.h"
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2012-05-25 22:49:25 +02:00
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#include "curl_sasl.h"
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2013-01-04 02:50:28 +01:00
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#include "warnless.h"
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2009-12-12 22:54:01 +01:00
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#define _MPRINTF_REPLACE /* use our functions only */
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#include <curl/mprintf.h>
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#include "curl_memory.h"
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/* The last #include file should be: */
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2013-01-04 02:50:28 +01:00
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#include "memdebug.h"
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2009-12-12 22:54:01 +01:00
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/* Local API functions */
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static CURLcode smtp_regular_transfer(struct connectdata *conn, bool *done);
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static CURLcode smtp_do(struct connectdata *conn, bool *done);
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2012-04-01 22:09:38 +02:00
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static CURLcode smtp_done(struct connectdata *conn, CURLcode status,
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bool premature);
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2009-12-12 22:54:01 +01:00
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static CURLcode smtp_connect(struct connectdata *conn, bool *done);
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2011-04-20 15:17:42 +02:00
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static CURLcode smtp_disconnect(struct connectdata *conn, bool dead);
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2009-12-12 22:54:01 +01:00
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static CURLcode smtp_multi_statemach(struct connectdata *conn, bool *done);
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2013-01-19 10:49:17 +01:00
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static int smtp_getsock(struct connectdata *conn, curl_socket_t *socks,
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2009-12-12 22:54:01 +01:00
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int numsocks);
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2012-04-01 22:09:38 +02:00
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static CURLcode smtp_doing(struct connectdata *conn, bool *dophase_done);
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2012-02-16 11:43:17 +01:00
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static CURLcode smtp_setup_connection(struct connectdata *conn);
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2013-04-13 17:21:58 +02:00
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static CURLcode smtp_parse_url_options(struct connectdata *conn);
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2013-04-13 00:15:51 +02:00
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static CURLcode smtp_parse_url_path(struct connectdata *conn);
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2009-12-20 23:11:16 +01:00
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2009-12-12 22:54:01 +01:00
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/*
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* SMTP protocol handler.
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*/
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const struct Curl_handler Curl_handler_smtp = {
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"SMTP", /* scheme */
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smtp_setup_connection, /* setup_connection */
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smtp_do, /* do_it */
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smtp_done, /* done */
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ZERO_NULL, /* do_more */
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smtp_connect, /* connect_it */
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smtp_multi_statemach, /* connecting */
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smtp_doing, /* doing */
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smtp_getsock, /* proto_getsock */
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smtp_getsock, /* doing_getsock */
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2011-10-21 23:36:54 +02:00
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ZERO_NULL, /* domore_getsock */
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2009-12-12 22:54:01 +01:00
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ZERO_NULL, /* perform_getsock */
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smtp_disconnect, /* disconnect */
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2011-05-05 16:27:03 +02:00
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ZERO_NULL, /* readwrite */
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2009-12-12 22:54:01 +01:00
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PORT_SMTP, /* defport */
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2011-03-14 22:52:14 +01:00
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CURLPROTO_SMTP, /* protocol */
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2011-11-24 23:28:54 +01:00
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PROTOPT_CLOSEACTION | PROTOPT_NOURLQUERY /* flags */
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2009-12-12 22:54:01 +01:00
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};
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#ifdef USE_SSL
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/*
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* SMTPS protocol handler.
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*/
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const struct Curl_handler Curl_handler_smtps = {
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"SMTPS", /* scheme */
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smtp_setup_connection, /* setup_connection */
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smtp_do, /* do_it */
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smtp_done, /* done */
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ZERO_NULL, /* do_more */
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smtp_connect, /* connect_it */
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smtp_multi_statemach, /* connecting */
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smtp_doing, /* doing */
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smtp_getsock, /* proto_getsock */
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smtp_getsock, /* doing_getsock */
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2011-10-21 23:36:54 +02:00
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ZERO_NULL, /* domore_getsock */
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2009-12-12 22:54:01 +01:00
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ZERO_NULL, /* perform_getsock */
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smtp_disconnect, /* disconnect */
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2011-05-05 16:27:03 +02:00
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ZERO_NULL, /* readwrite */
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2009-12-12 22:54:01 +01:00
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PORT_SMTPS, /* defport */
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2011-03-14 22:52:14 +01:00
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CURLPROTO_SMTP | CURLPROTO_SMTPS, /* protocol */
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2011-11-24 23:28:54 +01:00
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PROTOPT_CLOSEACTION | PROTOPT_SSL
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| PROTOPT_NOURLQUERY /* flags */
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2009-12-12 22:54:01 +01:00
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};
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#endif
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#ifndef CURL_DISABLE_HTTP
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/*
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* HTTP-proxyed SMTP protocol handler.
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*/
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2010-01-26 00:41:02 +01:00
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static const struct Curl_handler Curl_handler_smtp_proxy = {
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2009-12-12 22:54:01 +01:00
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"SMTP", /* scheme */
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2013-08-04 19:34:16 +02:00
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Curl_http_setup_conn, /* setup_connection */
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2009-12-12 22:54:01 +01:00
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Curl_http, /* do_it */
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Curl_http_done, /* done */
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ZERO_NULL, /* do_more */
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ZERO_NULL, /* connect_it */
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ZERO_NULL, /* connecting */
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ZERO_NULL, /* doing */
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ZERO_NULL, /* proto_getsock */
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ZERO_NULL, /* doing_getsock */
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2011-10-21 23:36:54 +02:00
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ZERO_NULL, /* domore_getsock */
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2009-12-12 22:54:01 +01:00
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ZERO_NULL, /* perform_getsock */
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ZERO_NULL, /* disconnect */
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2011-05-05 16:27:03 +02:00
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ZERO_NULL, /* readwrite */
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2009-12-12 22:54:01 +01:00
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PORT_SMTP, /* defport */
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2011-03-14 22:52:14 +01:00
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CURLPROTO_HTTP, /* protocol */
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2011-03-14 22:22:22 +01:00
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PROTOPT_NONE /* flags */
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2009-12-12 22:54:01 +01:00
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};
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#ifdef USE_SSL
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/*
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* HTTP-proxyed SMTPS protocol handler.
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*/
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2010-01-26 00:41:02 +01:00
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static const struct Curl_handler Curl_handler_smtps_proxy = {
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2009-12-12 22:54:01 +01:00
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"SMTPS", /* scheme */
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2013-08-04 19:34:16 +02:00
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Curl_http_setup_conn, /* setup_connection */
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2009-12-12 22:54:01 +01:00
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Curl_http, /* do_it */
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Curl_http_done, /* done */
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ZERO_NULL, /* do_more */
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ZERO_NULL, /* connect_it */
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ZERO_NULL, /* connecting */
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ZERO_NULL, /* doing */
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ZERO_NULL, /* proto_getsock */
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ZERO_NULL, /* doing_getsock */
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2011-10-21 23:36:54 +02:00
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ZERO_NULL, /* domore_getsock */
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2009-12-12 22:54:01 +01:00
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ZERO_NULL, /* perform_getsock */
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ZERO_NULL, /* disconnect */
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2011-05-05 16:27:03 +02:00
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ZERO_NULL, /* readwrite */
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2009-12-12 22:54:01 +01:00
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PORT_SMTPS, /* defport */
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2011-03-14 22:52:14 +01:00
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CURLPROTO_HTTP, /* protocol */
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2011-03-14 22:22:22 +01:00
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PROTOPT_NONE /* flags */
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2009-12-12 22:54:01 +01:00
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};
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#endif
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#endif
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2013-02-12 00:13:50 +01:00
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#ifdef USE_SSL
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static void smtp_to_smtps(struct connectdata *conn)
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{
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conn->handler = &Curl_handler_smtps;
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}
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#else
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#define smtp_to_smtps(x) Curl_nop_stmt
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#endif
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2013-04-16 20:40:54 +02:00
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/***********************************************************************
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*
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* pop3_endofresp()
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*
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* Checks for an ending SMTP status code at the start of the given string, but
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* also detects various capabilities from the EHLO response including the
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* supported authentication mechanisms.
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*/
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2013-02-12 19:08:48 +01:00
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static bool smtp_endofresp(struct connectdata *conn, char *line, size_t len,
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int *resp)
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2009-12-12 22:54:01 +01:00
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{
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2010-04-19 11:16:30 +02:00
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struct smtp_conn *smtpc = &conn->proto.smtpc;
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2013-02-19 16:53:13 +01:00
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bool result = FALSE;
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2010-04-19 11:16:30 +02:00
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size_t wordlen;
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if(len < 4 || !ISDIGIT(line[0]) || !ISDIGIT(line[1]) || !ISDIGIT(line[2]))
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2012-04-01 22:09:38 +02:00
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return FALSE; /* Nothing for us */
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2010-04-19 11:16:30 +02:00
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2013-02-09 01:22:25 +01:00
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/* Do we have a command response? */
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2013-02-19 16:53:13 +01:00
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result = (line[3] == ' ') ? TRUE : FALSE;
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if(result)
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2010-12-01 23:33:43 +01:00
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*resp = curlx_sltosi(strtol(line, NULL, 10));
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2010-04-19 11:16:30 +02:00
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2013-02-09 01:22:25 +01:00
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/* Are we processing EHLO command data? */
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2013-02-09 20:01:15 +01:00
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if(smtpc->state == SMTP_EHLO && (!result || (result && *resp/100 == 2))) {
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2013-02-08 22:19:34 +01:00
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line += 4;
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len -= 4;
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2010-04-19 11:16:30 +02:00
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2013-02-10 13:19:10 +01:00
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/* Does the server support the STARTTLS capability? */
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if(len >= 8 && !memcmp(line, "STARTTLS", 8))
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smtpc->tls_supported = TRUE;
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2013-02-08 22:19:34 +01:00
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/* Does the server support the SIZE capability? */
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2013-02-10 13:19:10 +01:00
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else if(len >= 4 && !memcmp(line, "SIZE", 4))
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2013-02-08 22:19:34 +01:00
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smtpc->size_supported = TRUE;
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2012-09-02 10:53:27 +02:00
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2013-02-08 22:19:34 +01:00
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/* Do we have the authentication mechanism list? */
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else if(len >= 5 && !memcmp(line, "AUTH ", 5)) {
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line += 5;
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len -= 5;
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2010-04-19 11:16:30 +02:00
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2013-02-10 13:19:10 +01:00
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/* Loop through the data line */
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2013-02-08 22:19:34 +01:00
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for(;;) {
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while(len &&
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(*line == ' ' || *line == '\t' ||
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*line == '\r' || *line == '\n')) {
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2013-02-09 15:26:22 +01:00
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2013-02-08 22:19:34 +01:00
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line++;
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len--;
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}
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2009-12-12 22:54:01 +01:00
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2013-02-08 22:19:34 +01:00
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if(!len)
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break;
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2010-04-19 11:16:30 +02:00
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2013-02-08 22:19:34 +01:00
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/* Extract the word */
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for(wordlen = 0; wordlen < len && line[wordlen] != ' ' &&
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line[wordlen] != '\t' && line[wordlen] != '\r' &&
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line[wordlen] != '\n';)
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wordlen++;
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2010-04-19 11:16:30 +02:00
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2013-02-08 22:19:34 +01:00
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/* Test the word for a matching authentication mechanism */
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if(wordlen == 5 && !memcmp(line, "LOGIN", 5))
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smtpc->authmechs |= SASL_MECH_LOGIN;
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else if(wordlen == 5 && !memcmp(line, "PLAIN", 5))
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smtpc->authmechs |= SASL_MECH_PLAIN;
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else if(wordlen == 8 && !memcmp(line, "CRAM-MD5", 8))
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smtpc->authmechs |= SASL_MECH_CRAM_MD5;
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else if(wordlen == 10 && !memcmp(line, "DIGEST-MD5", 10))
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smtpc->authmechs |= SASL_MECH_DIGEST_MD5;
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else if(wordlen == 6 && !memcmp(line, "GSSAPI", 6))
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|
|
|
smtpc->authmechs |= SASL_MECH_GSSAPI;
|
|
|
|
else if(wordlen == 8 && !memcmp(line, "EXTERNAL", 8))
|
|
|
|
smtpc->authmechs |= SASL_MECH_EXTERNAL;
|
|
|
|
else if(wordlen == 4 && !memcmp(line, "NTLM", 4))
|
|
|
|
smtpc->authmechs |= SASL_MECH_NTLM;
|
2013-08-25 19:17:58 +02:00
|
|
|
else if(wordlen == 7 && !memcmp(line, "XOAUTH2", 7))
|
|
|
|
smtpc->authmechs |= SASL_MECH_XOAUTH2;
|
2010-04-19 11:16:30 +02:00
|
|
|
|
2013-02-08 22:19:34 +01:00
|
|
|
line += wordlen;
|
|
|
|
len -= wordlen;
|
|
|
|
}
|
2010-04-19 11:16:30 +02:00
|
|
|
}
|
2009-12-12 22:54:01 +01:00
|
|
|
}
|
|
|
|
|
2013-02-09 15:32:20 +01:00
|
|
|
return result;
|
2009-12-12 22:54:01 +01:00
|
|
|
}
|
|
|
|
|
2013-04-16 20:40:54 +02:00
|
|
|
/***********************************************************************
|
|
|
|
*
|
|
|
|
* state()
|
|
|
|
*
|
|
|
|
* This is the ONLY way to change SMTP state!
|
|
|
|
*/
|
2012-04-01 22:09:38 +02:00
|
|
|
static void state(struct connectdata *conn, smtpstate newstate)
|
2009-12-12 22:54:01 +01:00
|
|
|
{
|
2010-05-18 23:44:19 +02:00
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
2009-12-12 22:54:01 +01:00
|
|
|
#if defined(DEBUGBUILD) && !defined(CURL_DISABLE_VERBOSE_STRINGS)
|
|
|
|
/* for debug purposes */
|
2011-08-24 08:55:25 +02:00
|
|
|
static const char * const names[] = {
|
2009-12-12 22:54:01 +01:00
|
|
|
"STOP",
|
|
|
|
"SERVERGREET",
|
|
|
|
"EHLO",
|
2010-02-22 13:41:02 +01:00
|
|
|
"HELO",
|
2009-12-12 22:54:01 +01:00
|
|
|
"STARTTLS",
|
2011-02-16 22:28:01 +01:00
|
|
|
"UPGRADETLS",
|
2012-06-06 21:14:52 +02:00
|
|
|
"AUTH_PLAIN",
|
|
|
|
"AUTH_LOGIN",
|
2013-02-07 21:37:11 +01:00
|
|
|
"AUTH_LOGIN_PASSWD",
|
2012-06-06 21:14:52 +02:00
|
|
|
"AUTH_CRAMMD5",
|
|
|
|
"AUTH_DIGESTMD5",
|
|
|
|
"AUTH_DIGESTMD5_RESP",
|
|
|
|
"AUTH_NTLM",
|
|
|
|
"AUTH_NTLM_TYPE2MSG",
|
2013-08-25 19:17:58 +02:00
|
|
|
"AUTH_XOAUTH2",
|
2013-02-28 22:11:02 +01:00
|
|
|
"AUTH_FINAL",
|
2009-12-12 22:54:01 +01:00
|
|
|
"MAIL",
|
|
|
|
"RCPT",
|
|
|
|
"DATA",
|
2010-02-20 22:56:48 +01:00
|
|
|
"POSTDATA",
|
2009-12-12 22:54:01 +01:00
|
|
|
"QUIT",
|
|
|
|
/* LAST */
|
|
|
|
};
|
2012-12-28 21:22:33 +01:00
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
if(smtpc->state != newstate)
|
|
|
|
infof(conn->data, "SMTP %p state change from %s to %s\n",
|
2013-07-23 15:59:07 +02:00
|
|
|
(void *)smtpc, names[smtpc->state], names[newstate]);
|
2009-12-12 22:54:01 +01:00
|
|
|
#endif
|
2012-12-28 21:22:33 +01:00
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
smtpc->state = newstate;
|
|
|
|
}
|
|
|
|
|
2013-04-16 20:40:54 +02:00
|
|
|
/***********************************************************************
|
|
|
|
*
|
2013-04-16 20:47:15 +02:00
|
|
|
* smtp_perform_ehlo()
|
2013-04-16 20:40:54 +02:00
|
|
|
*
|
|
|
|
* Sends the EHLO command to not only initialise communication with the ESMTP
|
|
|
|
* server but to also obtain a list of server side supported capabilities.
|
|
|
|
*/
|
2013-04-16 20:47:15 +02:00
|
|
|
static CURLcode smtp_perform_ehlo(struct connectdata *conn)
|
2009-12-12 22:54:01 +01:00
|
|
|
{
|
2013-02-17 00:37:50 +01:00
|
|
|
CURLcode result = CURLE_OK;
|
2009-12-30 23:50:42 +01:00
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
2009-12-12 22:54:01 +01:00
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
smtpc->authmechs = 0; /* No known authentication mechanisms yet */
|
2011-10-01 15:46:14 +02:00
|
|
|
smtpc->authused = 0; /* Clear the authentication mechanism used
|
|
|
|
for esmtp connections */
|
2013-02-10 20:59:42 +01:00
|
|
|
smtpc->tls_supported = FALSE; /* Clear the TLS capability */
|
2010-04-19 11:16:30 +02:00
|
|
|
|
2013-01-06 23:32:05 +01:00
|
|
|
/* Send the EHLO command */
|
2010-04-19 11:16:30 +02:00
|
|
|
result = Curl_pp_sendf(&smtpc->pp, "EHLO %s", smtpc->domain);
|
2010-02-22 13:41:02 +01:00
|
|
|
|
2013-03-03 14:48:22 +01:00
|
|
|
if(!result)
|
|
|
|
state(conn, SMTP_EHLO);
|
2012-02-24 15:36:53 +01:00
|
|
|
|
2013-03-03 14:48:22 +01:00
|
|
|
return result;
|
2010-02-22 13:41:02 +01:00
|
|
|
}
|
|
|
|
|
2013-04-16 20:40:54 +02:00
|
|
|
/***********************************************************************
|
|
|
|
*
|
2013-04-16 20:47:15 +02:00
|
|
|
* smtp_perform_helo()
|
2013-04-16 20:40:54 +02:00
|
|
|
*
|
|
|
|
* Sends the HELO command to initialise communication with the SMTP server.
|
|
|
|
*/
|
2013-04-16 20:47:15 +02:00
|
|
|
static CURLcode smtp_perform_helo(struct connectdata *conn)
|
2010-02-22 13:41:02 +01:00
|
|
|
{
|
2013-02-17 00:37:50 +01:00
|
|
|
CURLcode result = CURLE_OK;
|
2010-02-22 13:41:02 +01:00
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
|
|
|
|
2011-10-01 15:46:14 +02:00
|
|
|
smtpc->authused = 0; /* No authentication mechanism used in smtp
|
|
|
|
connections */
|
|
|
|
|
2013-01-06 23:32:05 +01:00
|
|
|
/* Send the HELO command */
|
2010-04-19 11:16:30 +02:00
|
|
|
result = Curl_pp_sendf(&smtpc->pp, "HELO %s", smtpc->domain);
|
2010-02-22 13:41:02 +01:00
|
|
|
|
2013-03-03 14:48:22 +01:00
|
|
|
if(!result)
|
|
|
|
state(conn, SMTP_HELO);
|
2012-02-24 15:36:53 +01:00
|
|
|
|
2013-03-03 14:48:22 +01:00
|
|
|
return result;
|
2009-12-12 22:54:01 +01:00
|
|
|
}
|
|
|
|
|
2013-04-16 20:40:54 +02:00
|
|
|
/***********************************************************************
|
|
|
|
*
|
2013-04-16 20:47:15 +02:00
|
|
|
* smtp_perform_starttls()
|
2013-04-16 20:40:54 +02:00
|
|
|
*
|
|
|
|
* Sends the STLS command to start the upgrade to TLS.
|
|
|
|
*/
|
2013-04-16 20:47:15 +02:00
|
|
|
static CURLcode smtp_perform_starttls(struct connectdata *conn)
|
2013-02-06 21:02:36 +01:00
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
|
|
|
|
/* Send the STARTTLS command */
|
2013-07-24 17:05:02 +02:00
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", "STARTTLS");
|
2013-02-06 21:02:36 +01:00
|
|
|
|
|
|
|
if(!result)
|
|
|
|
state(conn, SMTP_STARTTLS);
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2013-04-16 20:40:54 +02:00
|
|
|
/***********************************************************************
|
|
|
|
*
|
2013-04-16 20:47:15 +02:00
|
|
|
* smtp_perform_upgrade_tls()
|
2013-04-16 20:40:54 +02:00
|
|
|
*
|
|
|
|
* Performs the upgrade to TLS.
|
|
|
|
*/
|
2013-04-16 20:47:15 +02:00
|
|
|
static CURLcode smtp_perform_upgrade_tls(struct connectdata *conn)
|
2013-02-12 00:13:50 +01:00
|
|
|
{
|
2013-02-17 00:37:50 +01:00
|
|
|
CURLcode result = CURLE_OK;
|
2013-02-12 00:13:50 +01:00
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
|
|
|
|
2013-02-13 21:12:21 +01:00
|
|
|
/* Start the SSL connection */
|
2013-02-12 00:13:50 +01:00
|
|
|
result = Curl_ssl_connect_nonblocking(conn, FIRSTSOCKET, &smtpc->ssldone);
|
|
|
|
|
|
|
|
if(!result) {
|
|
|
|
if(smtpc->state != SMTP_UPGRADETLS)
|
|
|
|
state(conn, SMTP_UPGRADETLS);
|
|
|
|
|
|
|
|
if(smtpc->ssldone) {
|
|
|
|
smtp_to_smtps(conn);
|
2013-04-16 20:47:15 +02:00
|
|
|
result = smtp_perform_ehlo(conn);
|
2013-02-12 00:13:50 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2013-04-16 20:40:54 +02:00
|
|
|
/***********************************************************************
|
|
|
|
*
|
2013-04-16 20:47:15 +02:00
|
|
|
* smtp_perform_authenticate()
|
2013-04-16 20:40:54 +02:00
|
|
|
*
|
|
|
|
* Sends an AUTH command allowing the client to login with the appropriate
|
|
|
|
* SASL authentication mechanism.
|
|
|
|
*/
|
2013-04-16 20:47:15 +02:00
|
|
|
static CURLcode smtp_perform_authenticate(struct connectdata *conn)
|
2010-04-19 11:16:30 +02:00
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
2013-04-27 12:59:17 +02:00
|
|
|
struct SessionHandle *data = conn->data;
|
2010-04-19 11:16:30 +02:00
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
2011-10-01 13:35:36 +02:00
|
|
|
const char *mech = NULL;
|
2013-02-17 00:37:50 +01:00
|
|
|
char *initresp = NULL;
|
2011-10-01 13:35:36 +02:00
|
|
|
size_t len = 0;
|
|
|
|
smtpstate state1 = SMTP_STOP;
|
|
|
|
smtpstate state2 = SMTP_STOP;
|
|
|
|
|
|
|
|
/* Check we have a username and password to authenticate with and end the
|
2012-04-01 22:09:38 +02:00
|
|
|
connect phase if we don't */
|
2011-10-01 13:35:36 +02:00
|
|
|
if(!conn->bits.user_passwd) {
|
|
|
|
state(conn, SMTP_STOP);
|
2010-04-19 11:16:30 +02:00
|
|
|
|
2011-10-01 13:35:36 +02:00
|
|
|
return result;
|
|
|
|
}
|
2010-05-31 17:25:55 +02:00
|
|
|
|
2013-02-05 00:51:36 +01:00
|
|
|
/* Calculate the supported authentication mechanism, by decreasing order of
|
|
|
|
security, as well as the initial response where appropriate */
|
2010-04-19 11:16:30 +02:00
|
|
|
#ifndef CURL_DISABLE_CRYPTO_AUTH
|
2013-04-13 17:21:58 +02:00
|
|
|
if((smtpc->authmechs & SASL_MECH_DIGEST_MD5) &&
|
|
|
|
(smtpc->prefmech & SASL_MECH_DIGEST_MD5)) {
|
2012-03-30 22:50:56 +02:00
|
|
|
mech = "DIGEST-MD5";
|
2012-06-06 21:14:52 +02:00
|
|
|
state1 = SMTP_AUTH_DIGESTMD5;
|
2012-06-08 20:52:28 +02:00
|
|
|
smtpc->authused = SASL_MECH_DIGEST_MD5;
|
2012-03-30 22:50:56 +02:00
|
|
|
}
|
2013-04-13 17:21:58 +02:00
|
|
|
else if((smtpc->authmechs & SASL_MECH_CRAM_MD5) &&
|
|
|
|
(smtpc->prefmech & SASL_MECH_CRAM_MD5)) {
|
2011-10-01 13:35:36 +02:00
|
|
|
mech = "CRAM-MD5";
|
2012-06-06 21:14:52 +02:00
|
|
|
state1 = SMTP_AUTH_CRAMMD5;
|
2012-06-08 20:52:28 +02:00
|
|
|
smtpc->authused = SASL_MECH_CRAM_MD5;
|
2011-10-01 15:46:14 +02:00
|
|
|
}
|
|
|
|
else
|
|
|
|
#endif
|
|
|
|
#ifdef USE_NTLM
|
2013-04-13 17:21:58 +02:00
|
|
|
if((smtpc->authmechs & SASL_MECH_NTLM) &&
|
|
|
|
(smtpc->prefmech & SASL_MECH_NTLM)) {
|
2011-10-01 15:46:14 +02:00
|
|
|
mech = "NTLM";
|
2012-06-06 21:14:52 +02:00
|
|
|
state1 = SMTP_AUTH_NTLM;
|
|
|
|
state2 = SMTP_AUTH_NTLM_TYPE2MSG;
|
2012-06-08 20:52:28 +02:00
|
|
|
smtpc->authused = SASL_MECH_NTLM;
|
2013-04-27 12:59:17 +02:00
|
|
|
|
|
|
|
if(data->set.sasl_ir)
|
|
|
|
result = Curl_sasl_create_ntlm_type1_message(conn->user, conn->passwd,
|
|
|
|
&conn->ntlm,
|
|
|
|
&initresp, &len);
|
|
|
|
}
|
2011-10-01 13:35:36 +02:00
|
|
|
else
|
2010-04-19 11:16:30 +02:00
|
|
|
#endif
|
2013-08-25 19:17:58 +02:00
|
|
|
if((smtpc->authmechs & SASL_MECH_XOAUTH2) &&
|
2013-09-04 22:27:01 +02:00
|
|
|
(smtpc->prefmech & SASL_MECH_XOAUTH2) &&
|
|
|
|
(smtpc->prefmech != SASL_AUTH_ANY) || conn->xoauth2_bearer) {
|
2013-08-25 19:17:58 +02:00
|
|
|
mech = "XOAUTH2";
|
|
|
|
state1 = SMTP_AUTH_XOAUTH2;
|
|
|
|
state2 = SMTP_AUTH_FINAL;
|
|
|
|
smtpc->authused = SASL_MECH_XOAUTH2;
|
|
|
|
|
|
|
|
if(data->set.sasl_ir)
|
|
|
|
result = Curl_sasl_create_xoauth2_message(conn->data, conn->user,
|
|
|
|
conn->xoauth2_bearer,
|
|
|
|
&initresp, &len);
|
|
|
|
}
|
|
|
|
else if((smtpc->authmechs & SASL_MECH_LOGIN) &&
|
2013-04-13 17:21:58 +02:00
|
|
|
(smtpc->prefmech & SASL_MECH_LOGIN)) {
|
2011-10-01 13:35:36 +02:00
|
|
|
mech = "LOGIN";
|
2012-06-06 21:14:52 +02:00
|
|
|
state1 = SMTP_AUTH_LOGIN;
|
2013-02-07 21:37:11 +01:00
|
|
|
state2 = SMTP_AUTH_LOGIN_PASSWD;
|
2012-06-08 20:52:28 +02:00
|
|
|
smtpc->authused = SASL_MECH_LOGIN;
|
2013-04-27 12:59:17 +02:00
|
|
|
|
|
|
|
if(data->set.sasl_ir)
|
|
|
|
result = Curl_sasl_create_login_message(conn->data, conn->user,
|
|
|
|
&initresp, &len);
|
2011-10-01 13:35:36 +02:00
|
|
|
}
|
2013-04-13 17:21:58 +02:00
|
|
|
else if((smtpc->authmechs & SASL_MECH_PLAIN) &&
|
|
|
|
(smtpc->prefmech & SASL_MECH_PLAIN)) {
|
2011-10-01 13:35:36 +02:00
|
|
|
mech = "PLAIN";
|
2012-06-06 21:14:52 +02:00
|
|
|
state1 = SMTP_AUTH_PLAIN;
|
2013-02-27 22:20:55 +01:00
|
|
|
state2 = SMTP_AUTH_FINAL;
|
2012-06-08 20:52:28 +02:00
|
|
|
smtpc->authused = SASL_MECH_PLAIN;
|
2013-04-27 12:59:17 +02:00
|
|
|
|
|
|
|
if(data->set.sasl_ir)
|
|
|
|
result = Curl_sasl_create_plain_message(conn->data, conn->user,
|
|
|
|
conn->passwd, &initresp, &len);
|
2011-10-01 13:35:36 +02:00
|
|
|
}
|
2010-04-19 11:16:30 +02:00
|
|
|
|
2011-10-01 13:35:36 +02:00
|
|
|
if(!result) {
|
2013-04-28 13:57:42 +02:00
|
|
|
if(mech) {
|
|
|
|
/* Perform SASL based authentication */
|
|
|
|
if(initresp &&
|
|
|
|
8 + strlen(mech) + len <= 512) { /* AUTH <mech> ...<crlf> */
|
|
|
|
result = Curl_pp_sendf(&smtpc->pp, "AUTH %s %s", mech, initresp);
|
|
|
|
|
|
|
|
if(!result)
|
|
|
|
state(conn, state2);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
result = Curl_pp_sendf(&smtpc->pp, "AUTH %s", mech);
|
|
|
|
|
|
|
|
if(!result)
|
|
|
|
state(conn, state1);
|
|
|
|
}
|
2010-04-19 11:16:30 +02:00
|
|
|
|
2013-04-28 13:57:42 +02:00
|
|
|
Curl_safefree(initresp);
|
2011-10-01 13:35:36 +02:00
|
|
|
}
|
|
|
|
else {
|
2013-04-28 13:57:42 +02:00
|
|
|
/* Other mechanisms not supported */
|
|
|
|
infof(conn->data, "No known authentication mechanisms supported!\n");
|
|
|
|
result = CURLE_LOGIN_DENIED;
|
2010-04-19 11:16:30 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2013-04-16 20:40:54 +02:00
|
|
|
/***********************************************************************
|
|
|
|
*
|
2013-04-16 20:47:15 +02:00
|
|
|
* smtp_perform_mail()
|
2013-04-16 20:40:54 +02:00
|
|
|
*
|
|
|
|
* Sends an MAIL command to initiate the upload of a message.
|
|
|
|
*/
|
2013-04-16 20:47:15 +02:00
|
|
|
static CURLcode smtp_perform_mail(struct connectdata *conn)
|
2013-04-16 20:30:43 +02:00
|
|
|
{
|
|
|
|
char *from = NULL;
|
|
|
|
char *auth = NULL;
|
|
|
|
char *size = NULL;
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
|
|
|
|
/* Calculate the FROM parameter */
|
|
|
|
if(!data->set.str[STRING_MAIL_FROM])
|
2013-05-04 10:58:32 +02:00
|
|
|
/* Null reverse-path, RFC-5321, sect. 3.6.3 */
|
2013-04-16 20:30:43 +02:00
|
|
|
from = strdup("<>");
|
|
|
|
else if(data->set.str[STRING_MAIL_FROM][0] == '<')
|
|
|
|
from = aprintf("%s", data->set.str[STRING_MAIL_FROM]);
|
|
|
|
else
|
|
|
|
from = aprintf("<%s>", data->set.str[STRING_MAIL_FROM]);
|
|
|
|
|
|
|
|
if(!from)
|
|
|
|
return CURLE_OUT_OF_MEMORY;
|
|
|
|
|
|
|
|
/* Calculate the optional AUTH parameter */
|
|
|
|
if(data->set.str[STRING_MAIL_AUTH] && conn->proto.smtpc.authused) {
|
|
|
|
if(data->set.str[STRING_MAIL_AUTH][0] != '\0')
|
|
|
|
auth = aprintf("%s", data->set.str[STRING_MAIL_AUTH]);
|
|
|
|
else
|
|
|
|
/* Empty AUTH, RFC-2554, sect. 5 */
|
|
|
|
auth = strdup("<>");
|
|
|
|
|
|
|
|
if(!auth) {
|
|
|
|
Curl_safefree(from);
|
|
|
|
|
|
|
|
return CURLE_OUT_OF_MEMORY;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-04-29 23:25:12 +02:00
|
|
|
/* Calculate the optional SIZE parameter */
|
2013-04-16 20:30:43 +02:00
|
|
|
if(conn->proto.smtpc.size_supported && conn->data->set.infilesize > 0) {
|
|
|
|
size = aprintf("%" FORMAT_OFF_T, data->set.infilesize);
|
|
|
|
|
|
|
|
if(!size) {
|
|
|
|
Curl_safefree(from);
|
|
|
|
Curl_safefree(auth);
|
|
|
|
|
|
|
|
return CURLE_OUT_OF_MEMORY;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Send the MAIL command */
|
|
|
|
if(!auth && !size)
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp,
|
|
|
|
"MAIL FROM:%s", from);
|
|
|
|
else if(auth && !size)
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp,
|
|
|
|
"MAIL FROM:%s AUTH=%s", from, auth);
|
|
|
|
else if(auth && size)
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp,
|
|
|
|
"MAIL FROM:%s AUTH=%s SIZE=%s", from, auth, size);
|
|
|
|
else
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp,
|
|
|
|
"MAIL FROM:%s SIZE=%s", from, size);
|
|
|
|
|
|
|
|
Curl_safefree(from);
|
|
|
|
Curl_safefree(auth);
|
|
|
|
Curl_safefree(size);
|
|
|
|
|
|
|
|
if(!result)
|
|
|
|
state(conn, SMTP_MAIL);
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2013-04-16 20:40:54 +02:00
|
|
|
/***********************************************************************
|
|
|
|
*
|
2013-04-16 20:47:15 +02:00
|
|
|
* smtp_perform_rcpt_to()
|
2013-04-16 20:40:54 +02:00
|
|
|
*
|
|
|
|
* Sends a RCPT TO command for a given recipient as part of the message upload
|
|
|
|
* process.
|
|
|
|
*/
|
2013-04-16 20:47:15 +02:00
|
|
|
static CURLcode smtp_perform_rcpt_to(struct connectdata *conn)
|
2013-04-16 20:32:55 +02:00
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
2013-08-05 10:32:08 +02:00
|
|
|
struct SMTP *smtp = data->req.protop;
|
2013-04-16 20:32:55 +02:00
|
|
|
|
|
|
|
/* Send the RCPT TO command */
|
|
|
|
if(smtp->rcpt) {
|
|
|
|
if(smtp->rcpt->data[0] == '<')
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "RCPT TO:%s",
|
|
|
|
smtp->rcpt->data);
|
|
|
|
else
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "RCPT TO:<%s>",
|
|
|
|
smtp->rcpt->data);
|
|
|
|
if(!result)
|
|
|
|
state(conn, SMTP_RCPT);
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2013-04-16 20:35:09 +02:00
|
|
|
/***********************************************************************
|
|
|
|
*
|
2013-04-16 20:47:15 +02:00
|
|
|
* smtp_perform_quit()
|
2013-04-16 20:35:09 +02:00
|
|
|
*
|
|
|
|
* Performs the quit action prior to sclose() being called.
|
|
|
|
*/
|
2013-04-16 20:47:15 +02:00
|
|
|
static CURLcode smtp_perform_quit(struct connectdata *conn)
|
2013-04-16 20:35:09 +02:00
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
|
|
|
|
/* Send the QUIT command */
|
2013-07-24 17:05:02 +02:00
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", "QUIT");
|
2013-04-16 20:35:09 +02:00
|
|
|
|
|
|
|
if(!result)
|
|
|
|
state(conn, SMTP_QUIT);
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* For the initial server greeting */
|
2012-03-24 12:55:34 +01:00
|
|
|
static CURLcode smtp_state_servergreet_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode/100 != 2) {
|
|
|
|
failf(data, "Got unexpected smtp-server response: %d", smtpcode);
|
2013-04-15 21:11:25 +02:00
|
|
|
result = CURLE_FTP_WEIRD_SERVER_REPLY;
|
2012-03-24 12:55:34 +01:00
|
|
|
}
|
2013-04-15 21:11:25 +02:00
|
|
|
else
|
2013-04-16 20:47:15 +02:00
|
|
|
result = smtp_perform_ehlo(conn);
|
2012-03-24 12:55:34 +01:00
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* For STARTTLS responses */
|
2009-12-12 22:54:01 +01:00
|
|
|
static CURLcode smtp_state_starttls_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
2012-03-24 12:55:34 +01:00
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
2010-02-22 13:41:02 +01:00
|
|
|
if(smtpcode != 220) {
|
2011-11-03 09:54:12 +01:00
|
|
|
if(data->set.use_ssl != CURLUSESSL_TRY) {
|
2010-02-22 13:41:02 +01:00
|
|
|
failf(data, "STARTTLS denied. %c", smtpcode);
|
2012-01-04 00:01:51 +01:00
|
|
|
result = CURLE_USE_SSL_FAILED;
|
2010-02-22 13:41:02 +01:00
|
|
|
}
|
2010-04-19 11:16:30 +02:00
|
|
|
else
|
2013-04-16 20:47:15 +02:00
|
|
|
result = smtp_perform_authenticate(conn);
|
2009-12-12 22:54:01 +01:00
|
|
|
}
|
2013-01-24 21:27:43 +01:00
|
|
|
else
|
2013-04-16 20:47:15 +02:00
|
|
|
result = smtp_perform_upgrade_tls(conn);
|
2011-10-01 13:35:36 +02:00
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* For EHLO responses */
|
2013-01-19 10:49:17 +01:00
|
|
|
static CURLcode smtp_state_ehlo_resp(struct connectdata *conn, int smtpcode,
|
2009-12-12 22:54:01 +01:00
|
|
|
smtpstate instate)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
2013-02-10 20:59:42 +01:00
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
2009-12-12 22:54:01 +01:00
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
2010-02-22 13:41:02 +01:00
|
|
|
if(smtpcode/100 != 2) {
|
2011-11-03 09:54:12 +01:00
|
|
|
if((data->set.use_ssl <= CURLUSESSL_TRY || conn->ssl[FIRSTSOCKET].use) &&
|
2010-04-19 11:16:30 +02:00
|
|
|
!conn->bits.user_passwd)
|
2013-04-16 20:47:15 +02:00
|
|
|
result = smtp_perform_helo(conn);
|
2010-02-22 13:41:02 +01:00
|
|
|
else {
|
2012-02-24 15:36:53 +01:00
|
|
|
failf(data, "Remote access denied: %d", smtpcode);
|
|
|
|
result = CURLE_REMOTE_ACCESS_DENIED;
|
2010-02-22 13:41:02 +01:00
|
|
|
}
|
2010-04-19 11:16:30 +02:00
|
|
|
}
|
2011-11-03 09:54:12 +01:00
|
|
|
else if(data->set.use_ssl && !conn->ssl[FIRSTSOCKET].use) {
|
2013-02-10 20:59:42 +01:00
|
|
|
/* We don't have a SSL/TLS connection yet, but SSL is requested */
|
|
|
|
if(smtpc->tls_supported)
|
|
|
|
/* Switch to TLS connection now */
|
2013-04-16 20:47:15 +02:00
|
|
|
result = smtp_perform_starttls(conn);
|
2013-02-10 20:59:42 +01:00
|
|
|
else if(data->set.use_ssl == CURLUSESSL_TRY)
|
|
|
|
/* Fallback and carry on with authentication */
|
2013-04-16 20:47:15 +02:00
|
|
|
result = smtp_perform_authenticate(conn);
|
2013-02-10 20:59:42 +01:00
|
|
|
else {
|
|
|
|
failf(data, "STARTTLS not supported.");
|
|
|
|
result = CURLE_USE_SSL_FAILED;
|
|
|
|
}
|
2010-02-22 13:41:02 +01:00
|
|
|
}
|
2010-04-19 11:16:30 +02:00
|
|
|
else
|
2013-04-16 20:47:15 +02:00
|
|
|
result = smtp_perform_authenticate(conn);
|
2010-04-19 11:16:30 +02:00
|
|
|
|
2010-02-22 13:41:02 +01:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* For HELO responses */
|
2013-01-19 10:49:17 +01:00
|
|
|
static CURLcode smtp_state_helo_resp(struct connectdata *conn, int smtpcode,
|
2010-02-22 13:41:02 +01:00
|
|
|
smtpstate instate)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
if(smtpcode/100 != 2) {
|
2012-02-24 15:36:53 +01:00
|
|
|
failf(data, "Remote access denied: %d", smtpcode);
|
|
|
|
result = CURLE_REMOTE_ACCESS_DENIED;
|
2010-04-19 11:16:30 +02:00
|
|
|
}
|
2012-06-05 13:23:01 +02:00
|
|
|
else
|
|
|
|
/* End of connect phase */
|
2010-02-22 13:41:02 +01:00
|
|
|
state(conn, SMTP_STOP);
|
2011-10-01 13:35:36 +02:00
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* For AUTH PLAIN (without initial response) responses */
|
2012-06-07 23:06:01 +02:00
|
|
|
static CURLcode smtp_state_auth_plain_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
2010-04-19 11:16:30 +02:00
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
2011-10-01 13:35:36 +02:00
|
|
|
size_t len = 0;
|
|
|
|
char *plainauth = NULL;
|
2010-04-19 11:16:30 +02:00
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode != 334) {
|
|
|
|
failf(data, "Access denied: %d", smtpcode);
|
|
|
|
result = CURLE_LOGIN_DENIED;
|
|
|
|
}
|
|
|
|
else {
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Create the authorisation message */
|
2012-05-30 21:52:52 +02:00
|
|
|
result = Curl_sasl_create_plain_message(conn->data, conn->user,
|
|
|
|
conn->passwd, &plainauth, &len);
|
2010-04-19 11:16:30 +02:00
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Send the message */
|
2011-08-24 08:07:36 +02:00
|
|
|
if(!result) {
|
|
|
|
if(plainauth) {
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", plainauth);
|
2010-04-19 11:16:30 +02:00
|
|
|
|
2011-08-24 08:07:36 +02:00
|
|
|
if(!result)
|
2013-02-27 22:20:55 +01:00
|
|
|
state(conn, SMTP_AUTH_FINAL);
|
2011-08-24 08:07:36 +02:00
|
|
|
}
|
2012-12-28 21:22:33 +01:00
|
|
|
|
2011-08-24 08:07:36 +02:00
|
|
|
Curl_safefree(plainauth);
|
2010-04-19 11:16:30 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* For AUTH LOGIN (without initial response) responses */
|
2012-06-07 23:06:01 +02:00
|
|
|
static CURLcode smtp_state_auth_login_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
2010-04-19 11:16:30 +02:00
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
2011-10-01 13:35:36 +02:00
|
|
|
size_t len = 0;
|
|
|
|
char *authuser = NULL;
|
2010-04-19 11:16:30 +02:00
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode != 334) {
|
|
|
|
failf(data, "Access denied: %d", smtpcode);
|
|
|
|
result = CURLE_LOGIN_DENIED;
|
|
|
|
}
|
|
|
|
else {
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Create the user message */
|
2012-06-01 00:11:54 +02:00
|
|
|
result = Curl_sasl_create_login_message(conn->data, conn->user,
|
|
|
|
&authuser, &len);
|
2010-04-19 11:16:30 +02:00
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Send the user */
|
2011-08-24 08:07:36 +02:00
|
|
|
if(!result) {
|
|
|
|
if(authuser) {
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", authuser);
|
2010-04-19 11:16:30 +02:00
|
|
|
|
2011-08-24 08:07:36 +02:00
|
|
|
if(!result)
|
2013-02-07 21:37:11 +01:00
|
|
|
state(conn, SMTP_AUTH_LOGIN_PASSWD);
|
2011-08-24 08:07:36 +02:00
|
|
|
}
|
2012-12-28 21:22:33 +01:00
|
|
|
|
2011-08-24 08:07:36 +02:00
|
|
|
Curl_safefree(authuser);
|
2010-04-19 11:16:30 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2013-02-07 21:37:11 +01:00
|
|
|
/* For AUTH LOGIN user entry responses */
|
2013-02-08 21:54:03 +01:00
|
|
|
static CURLcode smtp_state_auth_login_password_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
2010-04-19 11:16:30 +02:00
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
2011-10-01 13:35:36 +02:00
|
|
|
size_t len = 0;
|
2011-08-24 08:07:36 +02:00
|
|
|
char *authpasswd = NULL;
|
2010-04-19 11:16:30 +02:00
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode != 334) {
|
|
|
|
failf(data, "Access denied: %d", smtpcode);
|
|
|
|
result = CURLE_LOGIN_DENIED;
|
|
|
|
}
|
|
|
|
else {
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Create the password message */
|
2012-06-01 00:11:54 +02:00
|
|
|
result = Curl_sasl_create_login_message(conn->data, conn->passwd,
|
|
|
|
&authpasswd, &len);
|
2010-04-19 11:16:30 +02:00
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Send the password */
|
2012-05-31 23:58:07 +02:00
|
|
|
if(!result) {
|
|
|
|
if(authpasswd) {
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", authpasswd);
|
2010-04-19 11:16:30 +02:00
|
|
|
|
2012-05-31 23:58:07 +02:00
|
|
|
if(!result)
|
2013-02-27 22:20:55 +01:00
|
|
|
state(conn, SMTP_AUTH_FINAL);
|
2010-04-19 11:16:30 +02:00
|
|
|
}
|
2012-12-28 21:22:33 +01:00
|
|
|
|
2012-05-31 23:58:07 +02:00
|
|
|
Curl_safefree(authpasswd);
|
2010-04-19 11:16:30 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifndef CURL_DISABLE_CRYPTO_AUTH
|
2012-06-05 13:23:01 +02:00
|
|
|
/* For AUTH CRAM-MD5 responses */
|
2012-06-07 23:06:01 +02:00
|
|
|
static CURLcode smtp_state_auth_cram_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
2010-04-19 11:16:30 +02:00
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
2012-02-16 11:43:17 +01:00
|
|
|
char *chlg64 = data->state.buffer;
|
2011-10-01 13:35:36 +02:00
|
|
|
size_t len = 0;
|
|
|
|
char *rplyb64 = NULL;
|
2010-04-19 11:16:30 +02:00
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode != 334) {
|
|
|
|
failf(data, "Access denied: %d", smtpcode);
|
|
|
|
return CURLE_LOGIN_DENIED;
|
|
|
|
}
|
|
|
|
|
2012-04-01 22:09:38 +02:00
|
|
|
/* Get the challenge */
|
2011-04-20 15:17:42 +02:00
|
|
|
for(chlg64 += 4; *chlg64 == ' ' || *chlg64 == '\t'; chlg64++)
|
2010-04-19 11:16:30 +02:00
|
|
|
;
|
|
|
|
|
2012-06-03 18:21:49 +02:00
|
|
|
/* Terminate the challenge */
|
2010-04-19 11:16:30 +02:00
|
|
|
if(*chlg64 != '=') {
|
2011-10-01 13:35:36 +02:00
|
|
|
for(len = strlen(chlg64); len--;)
|
|
|
|
if(chlg64[len] != '\r' && chlg64[len] != '\n' && chlg64[len] != ' ' &&
|
|
|
|
chlg64[len] != '\t')
|
2010-04-19 11:16:30 +02:00
|
|
|
break;
|
|
|
|
|
2011-10-01 13:35:36 +02:00
|
|
|
if(++len) {
|
|
|
|
chlg64[len] = '\0';
|
2010-04-19 11:16:30 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Create the response message */
|
2012-06-03 18:21:49 +02:00
|
|
|
result = Curl_sasl_create_cram_md5_message(data, chlg64, conn->user,
|
|
|
|
conn->passwd, &rplyb64, &len);
|
2010-04-19 11:16:30 +02:00
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Send the response */
|
2011-08-24 08:07:36 +02:00
|
|
|
if(!result) {
|
|
|
|
if(rplyb64) {
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", rplyb64);
|
2010-04-19 11:16:30 +02:00
|
|
|
|
2011-08-24 08:07:36 +02:00
|
|
|
if(!result)
|
2013-02-27 22:20:55 +01:00
|
|
|
state(conn, SMTP_AUTH_FINAL);
|
2011-08-24 08:07:36 +02:00
|
|
|
}
|
2012-12-28 21:22:33 +01:00
|
|
|
|
2011-08-24 08:07:36 +02:00
|
|
|
Curl_safefree(rplyb64);
|
2010-04-19 11:16:30 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* For AUTH DIGEST-MD5 challenge responses */
|
2012-06-07 23:06:01 +02:00
|
|
|
static CURLcode smtp_state_auth_digest_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
2012-03-30 22:50:56 +02:00
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
char *chlg64 = data->state.buffer;
|
|
|
|
size_t len = 0;
|
|
|
|
char *rplyb64 = NULL;
|
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode != 334) {
|
|
|
|
failf(data, "Access denied: %d", smtpcode);
|
|
|
|
return CURLE_LOGIN_DENIED;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Get the challenge */
|
|
|
|
for(chlg64 += 4; *chlg64 == ' ' || *chlg64 == '\t'; chlg64++)
|
|
|
|
;
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Create the response message */
|
2012-06-04 11:53:18 +02:00
|
|
|
result = Curl_sasl_create_digest_md5_message(data, chlg64, conn->user,
|
2012-06-04 21:22:06 +02:00
|
|
|
conn->passwd, "smtp",
|
|
|
|
&rplyb64, &len);
|
2012-03-30 22:50:56 +02:00
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Send the response */
|
2012-03-30 22:50:56 +02:00
|
|
|
if(!result) {
|
|
|
|
if(rplyb64) {
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", rplyb64);
|
|
|
|
|
|
|
|
if(!result)
|
2012-06-06 21:14:52 +02:00
|
|
|
state(conn, SMTP_AUTH_DIGESTMD5_RESP);
|
2012-03-30 22:50:56 +02:00
|
|
|
}
|
2012-04-01 22:09:38 +02:00
|
|
|
|
2012-03-30 22:50:56 +02:00
|
|
|
Curl_safefree(rplyb64);
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* For AUTH DIGEST-MD5 challenge-response responses */
|
2012-06-07 23:06:01 +02:00
|
|
|
static CURLcode smtp_state_auth_digest_resp_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
2012-03-30 22:50:56 +02:00
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode != 334) {
|
|
|
|
failf(data, "Authentication failed: %d", smtpcode);
|
|
|
|
result = CURLE_LOGIN_DENIED;
|
|
|
|
}
|
|
|
|
else {
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Send an empty response */
|
2013-07-24 17:05:02 +02:00
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", "");
|
2012-03-30 22:50:56 +02:00
|
|
|
|
|
|
|
if(!result)
|
2013-02-27 22:20:55 +01:00
|
|
|
state(conn, SMTP_AUTH_FINAL);
|
2012-03-30 22:50:56 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2010-04-19 11:16:30 +02:00
|
|
|
#endif
|
|
|
|
|
2011-10-01 15:46:14 +02:00
|
|
|
#ifdef USE_NTLM
|
2012-06-05 13:23:01 +02:00
|
|
|
/* For AUTH NTLM (without initial response) responses */
|
2011-10-01 15:46:14 +02:00
|
|
|
static CURLcode smtp_state_auth_ntlm_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
char *type1msg = NULL;
|
|
|
|
size_t len = 0;
|
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode != 334) {
|
|
|
|
failf(data, "Access denied: %d", smtpcode);
|
|
|
|
result = CURLE_LOGIN_DENIED;
|
|
|
|
}
|
|
|
|
else {
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Create the type-1 message */
|
2012-06-02 12:07:58 +02:00
|
|
|
result = Curl_sasl_create_ntlm_type1_message(conn->user, conn->passwd,
|
2012-06-05 13:23:01 +02:00
|
|
|
&conn->ntlm,
|
|
|
|
&type1msg, &len);
|
2011-10-01 15:46:14 +02:00
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Send the message */
|
2011-10-01 15:46:14 +02:00
|
|
|
if(!result) {
|
|
|
|
if(type1msg) {
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", type1msg);
|
|
|
|
|
|
|
|
if(!result)
|
2012-06-06 21:14:52 +02:00
|
|
|
state(conn, SMTP_AUTH_NTLM_TYPE2MSG);
|
2011-10-01 15:46:14 +02:00
|
|
|
}
|
2012-04-01 22:09:38 +02:00
|
|
|
|
2011-10-01 15:46:14 +02:00
|
|
|
Curl_safefree(type1msg);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* For NTLM type-2 responses (sent in reponse to our type-1 message) */
|
2011-10-01 15:46:14 +02:00
|
|
|
static CURLcode smtp_state_auth_ntlm_type2msg_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
char *type3msg = NULL;
|
|
|
|
size_t len = 0;
|
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode != 334) {
|
|
|
|
failf(data, "Access denied: %d", smtpcode);
|
|
|
|
result = CURLE_LOGIN_DENIED;
|
|
|
|
}
|
|
|
|
else {
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Create the type-3 message */
|
2012-06-04 23:25:45 +02:00
|
|
|
result = Curl_sasl_create_ntlm_type3_message(data,
|
2012-06-02 12:07:58 +02:00
|
|
|
data->state.buffer + 4,
|
|
|
|
conn->user, conn->passwd,
|
|
|
|
&conn->ntlm,
|
|
|
|
&type3msg, &len);
|
2012-06-05 13:23:01 +02:00
|
|
|
|
|
|
|
/* Send the message */
|
2011-10-03 23:04:32 +02:00
|
|
|
if(!result) {
|
2012-06-02 12:07:58 +02:00
|
|
|
if(type3msg) {
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", type3msg);
|
|
|
|
|
|
|
|
if(!result)
|
2013-02-27 22:20:55 +01:00
|
|
|
state(conn, SMTP_AUTH_FINAL);
|
2011-10-01 15:46:14 +02:00
|
|
|
}
|
2012-06-02 12:07:58 +02:00
|
|
|
|
|
|
|
Curl_safefree(type3msg);
|
2011-10-01 15:46:14 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2013-08-25 19:17:58 +02:00
|
|
|
/* For AUTH XOAUTH2 (without initial response) responses */
|
|
|
|
static CURLcode smtp_state_auth_xoauth2_resp(struct connectdata *conn,
|
|
|
|
int smtpcode, smtpstate instate)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
size_t len = 0;
|
|
|
|
char *xoauth = NULL;
|
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode != 334) {
|
|
|
|
failf(data, "Access denied: %d", smtpcode);
|
|
|
|
result = CURLE_LOGIN_DENIED;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
/* Create the authorisation message */
|
|
|
|
result = Curl_sasl_create_xoauth2_message(conn->data, conn->user,
|
|
|
|
conn->xoauth2_bearer,
|
|
|
|
&xoauth, &len);
|
|
|
|
|
|
|
|
/* Send the message */
|
|
|
|
if(!result) {
|
|
|
|
if(xoauth) {
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", xoauth);
|
|
|
|
|
|
|
|
if(!result)
|
|
|
|
state(conn, SMTP_AUTH_FINAL);
|
|
|
|
}
|
|
|
|
|
|
|
|
Curl_safefree(xoauth);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* For the final responses to the AUTH sequence */
|
2013-02-14 19:15:07 +01:00
|
|
|
static CURLcode smtp_state_auth_final_resp(struct connectdata *conn,
|
2013-02-14 21:06:03 +01:00
|
|
|
int smtpcode,
|
2013-02-14 19:15:07 +01:00
|
|
|
smtpstate instate)
|
2010-04-19 11:16:30 +02:00
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode != 235) {
|
|
|
|
failf(data, "Authentication failed: %d", smtpcode);
|
|
|
|
result = CURLE_LOGIN_DENIED;
|
|
|
|
}
|
|
|
|
else
|
2012-06-05 13:23:01 +02:00
|
|
|
/* End of connect phase */
|
|
|
|
state(conn, SMTP_STOP);
|
2010-04-19 11:16:30 +02:00
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* For MAIL responses */
|
2013-01-19 10:49:17 +01:00
|
|
|
static CURLcode smtp_state_mail_resp(struct connectdata *conn, int smtpcode,
|
2009-12-12 22:54:01 +01:00
|
|
|
smtpstate instate)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
2013-08-05 10:32:08 +02:00
|
|
|
struct SMTP *smtp = data->req.protop;
|
2012-04-01 22:09:38 +02:00
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode/100 != 2) {
|
2012-06-24 23:40:17 +02:00
|
|
|
failf(data, "MAIL failed: %d", smtpcode);
|
|
|
|
result = CURLE_SEND_ERROR;
|
2009-12-12 22:54:01 +01:00
|
|
|
state(conn, SMTP_STOP);
|
|
|
|
}
|
|
|
|
else {
|
2013-02-23 20:39:22 +01:00
|
|
|
smtp->rcpt = data->set.mail_rcpt;
|
2009-12-31 22:52:01 +01:00
|
|
|
|
2013-04-16 20:47:15 +02:00
|
|
|
result = smtp_perform_rcpt_to(conn);
|
2009-12-12 22:54:01 +01:00
|
|
|
}
|
2010-02-20 23:29:59 +01:00
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* For RCPT responses */
|
2013-01-19 10:49:17 +01:00
|
|
|
static CURLcode smtp_state_rcpt_resp(struct connectdata *conn, int smtpcode,
|
2009-12-12 22:54:01 +01:00
|
|
|
smtpstate instate)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
2013-08-05 10:32:08 +02:00
|
|
|
struct SMTP *smtp = data->req.protop;
|
2012-04-01 22:09:38 +02:00
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode/100 != 2) {
|
2012-06-24 23:40:17 +02:00
|
|
|
failf(data, "RCPT failed: %d", smtpcode);
|
|
|
|
result = CURLE_SEND_ERROR;
|
2009-12-12 22:54:01 +01:00
|
|
|
state(conn, SMTP_STOP);
|
|
|
|
}
|
|
|
|
else {
|
2013-02-23 20:39:22 +01:00
|
|
|
if(smtp->rcpt) {
|
|
|
|
smtp->rcpt = smtp->rcpt->next;
|
2013-04-16 20:47:15 +02:00
|
|
|
result = smtp_perform_rcpt_to(conn);
|
2010-02-12 23:23:46 +01:00
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* If we failed or still are sending RCPT data then return */
|
2013-02-23 20:39:22 +01:00
|
|
|
if(result || smtp->rcpt)
|
2010-02-20 23:29:59 +01:00
|
|
|
return result;
|
2010-02-12 23:23:46 +01:00
|
|
|
}
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Send the DATA command */
|
2013-07-24 17:05:02 +02:00
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", "DATA");
|
2012-02-20 13:18:22 +01:00
|
|
|
|
2013-03-03 14:48:22 +01:00
|
|
|
if(!result)
|
|
|
|
state(conn, SMTP_DATA);
|
2009-12-12 22:54:01 +01:00
|
|
|
}
|
2011-10-01 13:35:36 +02:00
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* For DATA response */
|
2013-01-19 10:49:17 +01:00
|
|
|
static CURLcode smtp_state_data_resp(struct connectdata *conn, int smtpcode,
|
2009-12-12 22:54:01 +01:00
|
|
|
smtpstate instate)
|
|
|
|
{
|
2013-04-29 23:25:12 +02:00
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
2009-12-25 23:50:11 +01:00
|
|
|
if(smtpcode != 354) {
|
2009-12-12 22:54:01 +01:00
|
|
|
state(conn, SMTP_STOP);
|
2012-06-24 23:40:17 +02:00
|
|
|
return CURLE_SEND_ERROR;
|
2009-12-12 22:54:01 +01:00
|
|
|
}
|
|
|
|
|
2013-04-29 23:25:12 +02:00
|
|
|
/* Set the progress upload size */
|
|
|
|
Curl_pgrsSetUploadSize(data, data->set.infilesize);
|
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
/* SMTP upload */
|
2013-02-26 00:00:08 +01:00
|
|
|
Curl_setup_transfer(conn, -1, -1, FALSE, NULL, FIRSTSOCKET, NULL);
|
2009-12-12 22:54:01 +01:00
|
|
|
|
2013-02-28 23:26:46 +01:00
|
|
|
/* End of DO phase */
|
2009-12-12 22:54:01 +01:00
|
|
|
state(conn, SMTP_STOP);
|
2012-03-24 12:55:34 +01:00
|
|
|
|
2010-04-16 23:43:04 +02:00
|
|
|
return CURLE_OK;
|
2009-12-12 22:54:01 +01:00
|
|
|
}
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* For POSTDATA responses, which are received after the entire DATA
|
|
|
|
part has been sent to the server */
|
2010-02-20 22:56:48 +01:00
|
|
|
static CURLcode smtp_state_postdata_resp(struct connectdata *conn,
|
2012-03-24 12:55:34 +01:00
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
2010-02-20 22:56:48 +01:00
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode != 250)
|
|
|
|
result = CURLE_RECV_ERROR;
|
|
|
|
|
2013-02-28 23:26:46 +01:00
|
|
|
/* End of DONE phase */
|
2010-02-20 22:56:48 +01:00
|
|
|
state(conn, SMTP_STOP);
|
2011-10-01 13:35:36 +02:00
|
|
|
|
2010-02-20 22:56:48 +01:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
static CURLcode smtp_statemach_act(struct connectdata *conn)
|
|
|
|
{
|
2013-02-17 00:37:50 +01:00
|
|
|
CURLcode result = CURLE_OK;
|
2009-12-12 22:54:01 +01:00
|
|
|
curl_socket_t sock = conn->sock[FIRSTSOCKET];
|
2011-08-24 08:55:25 +02:00
|
|
|
struct SessionHandle *data = conn->data;
|
2009-12-12 22:54:01 +01:00
|
|
|
int smtpcode;
|
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
|
|
|
struct pingpong *pp = &smtpc->pp;
|
|
|
|
size_t nread = 0;
|
|
|
|
|
2012-12-28 21:22:33 +01:00
|
|
|
/* Busy upgrading the connection; right now all I/O is SSL/TLS, not SMTP */
|
2011-02-16 22:28:01 +01:00
|
|
|
if(smtpc->state == SMTP_UPGRADETLS)
|
2013-04-16 20:47:15 +02:00
|
|
|
return smtp_perform_upgrade_tls(conn);
|
2011-02-16 22:28:01 +01:00
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Flush any data that needs to be sent */
|
2009-12-12 22:54:01 +01:00
|
|
|
if(pp->sendleft)
|
|
|
|
return Curl_pp_flushsend(pp);
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Read the response from the server */
|
2009-12-12 22:54:01 +01:00
|
|
|
result = Curl_pp_readresp(sock, pp, &smtpcode, &nread);
|
|
|
|
if(result)
|
|
|
|
return result;
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Store the latest response for later retrieval */
|
2012-02-22 11:44:34 +01:00
|
|
|
if(smtpc->state != SMTP_QUIT)
|
|
|
|
data->info.httpcode = smtpcode;
|
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
if(smtpcode) {
|
2012-12-28 21:22:33 +01:00
|
|
|
/* We have now received a full SMTP server response */
|
2009-12-12 22:54:01 +01:00
|
|
|
switch(smtpc->state) {
|
|
|
|
case SMTP_SERVERGREET:
|
2012-03-24 12:55:34 +01:00
|
|
|
result = smtp_state_servergreet_resp(conn, smtpcode, smtpc->state);
|
2009-12-12 22:54:01 +01:00
|
|
|
break;
|
|
|
|
|
|
|
|
case SMTP_EHLO:
|
|
|
|
result = smtp_state_ehlo_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
2010-02-22 13:41:02 +01:00
|
|
|
case SMTP_HELO:
|
|
|
|
result = smtp_state_helo_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
2010-04-19 11:16:30 +02:00
|
|
|
case SMTP_STARTTLS:
|
|
|
|
result = smtp_state_starttls_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
2012-06-06 21:14:52 +02:00
|
|
|
case SMTP_AUTH_PLAIN:
|
2012-06-07 23:06:01 +02:00
|
|
|
result = smtp_state_auth_plain_resp(conn, smtpcode, smtpc->state);
|
2010-04-19 11:16:30 +02:00
|
|
|
break;
|
|
|
|
|
2012-06-06 21:14:52 +02:00
|
|
|
case SMTP_AUTH_LOGIN:
|
2012-06-07 23:06:01 +02:00
|
|
|
result = smtp_state_auth_login_resp(conn, smtpcode, smtpc->state);
|
2010-04-19 11:16:30 +02:00
|
|
|
break;
|
|
|
|
|
2013-02-07 21:37:11 +01:00
|
|
|
case SMTP_AUTH_LOGIN_PASSWD:
|
2013-02-08 21:54:03 +01:00
|
|
|
result = smtp_state_auth_login_password_resp(conn, smtpcode,
|
|
|
|
smtpc->state);
|
2010-04-19 11:16:30 +02:00
|
|
|
break;
|
|
|
|
|
|
|
|
#ifndef CURL_DISABLE_CRYPTO_AUTH
|
2012-06-06 21:14:52 +02:00
|
|
|
case SMTP_AUTH_CRAMMD5:
|
2012-06-07 23:06:01 +02:00
|
|
|
result = smtp_state_auth_cram_resp(conn, smtpcode, smtpc->state);
|
2010-04-19 11:16:30 +02:00
|
|
|
break;
|
2012-03-30 22:50:56 +02:00
|
|
|
|
2012-06-06 21:14:52 +02:00
|
|
|
case SMTP_AUTH_DIGESTMD5:
|
2012-06-07 23:06:01 +02:00
|
|
|
result = smtp_state_auth_digest_resp(conn, smtpcode, smtpc->state);
|
2012-03-30 22:50:56 +02:00
|
|
|
break;
|
|
|
|
|
2012-06-06 21:14:52 +02:00
|
|
|
case SMTP_AUTH_DIGESTMD5_RESP:
|
2012-06-07 23:06:01 +02:00
|
|
|
result = smtp_state_auth_digest_resp_resp(conn, smtpcode, smtpc->state);
|
2012-03-30 22:50:56 +02:00
|
|
|
break;
|
2010-04-19 11:16:30 +02:00
|
|
|
#endif
|
|
|
|
|
2011-10-01 15:46:14 +02:00
|
|
|
#ifdef USE_NTLM
|
2012-06-06 21:14:52 +02:00
|
|
|
case SMTP_AUTH_NTLM:
|
2011-10-01 15:46:14 +02:00
|
|
|
result = smtp_state_auth_ntlm_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
2012-06-06 21:14:52 +02:00
|
|
|
case SMTP_AUTH_NTLM_TYPE2MSG:
|
2011-10-03 23:04:32 +02:00
|
|
|
result = smtp_state_auth_ntlm_type2msg_resp(conn, smtpcode,
|
|
|
|
smtpc->state);
|
2011-10-01 15:46:14 +02:00
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
|
2013-08-25 19:17:58 +02:00
|
|
|
case SMTP_AUTH_XOAUTH2:
|
|
|
|
result = smtp_state_auth_xoauth2_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
2013-02-27 22:20:55 +01:00
|
|
|
case SMTP_AUTH_FINAL:
|
2013-02-14 19:15:07 +01:00
|
|
|
result = smtp_state_auth_final_resp(conn, smtpcode, smtpc->state);
|
2010-04-19 11:16:30 +02:00
|
|
|
break;
|
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
case SMTP_MAIL:
|
|
|
|
result = smtp_state_mail_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case SMTP_RCPT:
|
|
|
|
result = smtp_state_rcpt_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case SMTP_DATA:
|
|
|
|
result = smtp_state_data_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
2010-02-20 22:56:48 +01:00
|
|
|
case SMTP_POSTDATA:
|
|
|
|
result = smtp_state_postdata_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
case SMTP_QUIT:
|
|
|
|
/* fallthrough, just stop! */
|
|
|
|
default:
|
|
|
|
/* internal error */
|
|
|
|
state(conn, SMTP_STOP);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2011-10-01 13:35:36 +02:00
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2013-01-04 02:50:28 +01:00
|
|
|
/* Called repeatedly until done from multi.c */
|
2012-04-01 22:09:38 +02:00
|
|
|
static CURLcode smtp_multi_statemach(struct connectdata *conn, bool *done)
|
2009-12-12 22:54:01 +01:00
|
|
|
{
|
2013-02-17 00:37:50 +01:00
|
|
|
CURLcode result = CURLE_OK;
|
2009-12-12 22:54:01 +01:00
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
2011-02-16 22:13:10 +01:00
|
|
|
|
2011-05-05 15:49:43 +02:00
|
|
|
if((conn->handler->flags & PROTOPT_SSL) && !smtpc->ssldone)
|
2011-02-16 22:13:10 +01:00
|
|
|
result = Curl_ssl_connect_nonblocking(conn, FIRSTSOCKET, &smtpc->ssldone);
|
2011-05-05 15:49:43 +02:00
|
|
|
else
|
2013-02-15 11:03:42 +01:00
|
|
|
result = Curl_pp_statemach(&smtpc->pp, FALSE);
|
2009-12-12 22:54:01 +01:00
|
|
|
|
2011-09-05 20:46:09 +02:00
|
|
|
*done = (smtpc->state == SMTP_STOP) ? TRUE : FALSE;
|
2009-12-12 22:54:01 +01:00
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2013-02-15 11:03:42 +01:00
|
|
|
static CURLcode smtp_block_statemach(struct connectdata *conn)
|
2009-12-12 22:54:01 +01:00
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
2013-02-17 00:37:50 +01:00
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
2009-12-12 22:54:01 +01:00
|
|
|
|
2013-03-07 23:44:10 +01:00
|
|
|
while(smtpc->state != SMTP_STOP && !result)
|
2013-02-17 00:37:50 +01:00
|
|
|
result = Curl_pp_statemach(&smtpc->pp, TRUE);
|
2009-12-12 22:54:01 +01:00
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Allocate and initialize the SMTP struct for the current SessionHandle if
|
2012-12-28 21:22:33 +01:00
|
|
|
required */
|
2009-12-12 22:54:01 +01:00
|
|
|
static CURLcode smtp_init(struct connectdata *conn)
|
|
|
|
{
|
2013-03-09 23:25:40 +01:00
|
|
|
CURLcode result = CURLE_OK;
|
2009-12-12 22:54:01 +01:00
|
|
|
struct SessionHandle *data = conn->data;
|
2013-08-04 19:34:16 +02:00
|
|
|
struct SMTP *smtp;
|
2012-06-05 15:34:17 +02:00
|
|
|
|
2013-08-05 10:32:08 +02:00
|
|
|
smtp = data->req.protop = calloc(sizeof(struct SMTP), 1);
|
2013-08-04 19:34:16 +02:00
|
|
|
if(!smtp)
|
|
|
|
result = CURLE_OUT_OF_MEMORY;
|
2009-12-12 22:54:01 +01:00
|
|
|
|
2013-03-09 23:25:40 +01:00
|
|
|
return result;
|
2009-12-12 22:54:01 +01:00
|
|
|
}
|
|
|
|
|
2013-02-12 00:13:50 +01:00
|
|
|
/* For the SMTP "protocol connect" and "doing" phases only */
|
|
|
|
static int smtp_getsock(struct connectdata *conn, curl_socket_t *socks,
|
|
|
|
int numsocks)
|
|
|
|
{
|
|
|
|
return Curl_pp_getsock(&conn->proto.smtpc.pp, socks, numsocks);
|
|
|
|
}
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/***********************************************************************
|
|
|
|
*
|
|
|
|
* smtp_connect()
|
|
|
|
*
|
|
|
|
* This function should do everything that is to be considered a part of
|
2009-12-12 22:54:01 +01:00
|
|
|
* the connection phase.
|
|
|
|
*
|
2011-08-24 08:55:25 +02:00
|
|
|
* The variable pointed to by 'done' will be TRUE if the protocol-layer
|
2013-08-09 23:39:09 +02:00
|
|
|
* connect phase is done when this function returns, or FALSE if not.
|
2009-12-12 22:54:01 +01:00
|
|
|
*/
|
2012-04-01 22:09:38 +02:00
|
|
|
static CURLcode smtp_connect(struct connectdata *conn, bool *done)
|
2009-12-12 22:54:01 +01:00
|
|
|
{
|
2013-02-17 00:37:50 +01:00
|
|
|
CURLcode result = CURLE_OK;
|
2009-12-12 22:54:01 +01:00
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
2011-08-24 08:55:25 +02:00
|
|
|
struct pingpong *pp = &smtpc->pp;
|
2010-02-22 13:41:02 +01:00
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
*done = FALSE; /* default to not done yet */
|
|
|
|
|
2013-02-13 21:12:21 +01:00
|
|
|
/* We always support persistent connections in SMTP */
|
2009-12-12 22:54:01 +01:00
|
|
|
conn->bits.close = FALSE;
|
|
|
|
|
2013-02-13 21:12:21 +01:00
|
|
|
/* Set the default response time-out */
|
|
|
|
pp->response_time = RESP_TIMEOUT;
|
2009-12-12 22:54:01 +01:00
|
|
|
pp->statemach_act = smtp_statemach_act;
|
|
|
|
pp->endofresp = smtp_endofresp;
|
|
|
|
pp->conn = conn;
|
|
|
|
|
2013-04-13 17:21:58 +02:00
|
|
|
/* Set the default preferred authentication mechanism */
|
|
|
|
smtpc->prefmech = SASL_AUTH_ANY;
|
|
|
|
|
2013-02-13 21:12:21 +01:00
|
|
|
/* Initialise the pingpong layer */
|
2012-04-01 22:09:38 +02:00
|
|
|
Curl_pp_init(pp);
|
2009-12-12 22:54:01 +01:00
|
|
|
|
2013-04-13 17:21:58 +02:00
|
|
|
/* Parse the URL options */
|
|
|
|
result = smtp_parse_url_options(conn);
|
|
|
|
if(result)
|
|
|
|
return result;
|
|
|
|
|
2013-04-13 00:15:51 +02:00
|
|
|
/* Parse the URL path */
|
|
|
|
result = smtp_parse_url_path(conn);
|
2011-12-23 13:24:16 +01:00
|
|
|
if(result)
|
|
|
|
return result;
|
2009-12-30 23:50:42 +01:00
|
|
|
|
2012-12-28 21:22:33 +01:00
|
|
|
/* Start off waiting for the server greeting response */
|
2009-12-12 22:54:01 +01:00
|
|
|
state(conn, SMTP_SERVERGREET);
|
|
|
|
|
2013-01-17 12:59:23 +01:00
|
|
|
result = smtp_multi_statemach(conn, done);
|
2009-12-12 22:54:01 +01:00
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
*
|
|
|
|
* smtp_done()
|
|
|
|
*
|
|
|
|
* The DONE function. This does what needs to be done after a single DO has
|
|
|
|
* performed.
|
|
|
|
*
|
|
|
|
* Input argument is already checked for validity.
|
|
|
|
*/
|
|
|
|
static CURLcode smtp_done(struct connectdata *conn, CURLcode status,
|
|
|
|
bool premature)
|
|
|
|
{
|
2013-02-17 00:37:50 +01:00
|
|
|
CURLcode result = CURLE_OK;
|
2009-12-12 22:54:01 +01:00
|
|
|
struct SessionHandle *data = conn->data;
|
2013-08-05 10:32:08 +02:00
|
|
|
struct SMTP *smtp = data->req.protop;
|
2013-05-04 10:52:09 +02:00
|
|
|
struct pingpong *pp = &conn->proto.smtpc.pp;
|
|
|
|
const char *eob;
|
2013-05-04 14:24:05 +02:00
|
|
|
ssize_t len;
|
2009-12-30 22:52:27 +01:00
|
|
|
ssize_t bytes_written;
|
2012-12-28 21:22:33 +01:00
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
(void)premature;
|
|
|
|
|
|
|
|
if(!smtp)
|
2013-02-23 21:02:05 +01:00
|
|
|
/* When the easy handle is removed from the multi interface while libcurl
|
|
|
|
is still trying to resolve the host name, the SMTP struct is not yet
|
|
|
|
initialized. However, the removal action calls Curl_done() which in
|
|
|
|
turn calls this function, so we simply return success. */
|
2009-12-12 22:54:01 +01:00
|
|
|
return CURLE_OK;
|
|
|
|
|
|
|
|
if(status) {
|
|
|
|
conn->bits.close = TRUE; /* marked for closure */
|
2012-02-16 11:43:17 +01:00
|
|
|
result = status; /* use the already set error code */
|
2009-12-12 22:54:01 +01:00
|
|
|
}
|
2012-02-14 15:21:21 +01:00
|
|
|
else if(!data->set.connect_only) {
|
2013-05-04 19:37:50 +02:00
|
|
|
/* Calculate the EOB taking into account any terminating CRLF from the
|
2013-05-04 10:52:09 +02:00
|
|
|
previous line of the email or the CRLF of the DATA command when there
|
|
|
|
is "no mail data". RFC-5321, sect. 4.1.1.4. */
|
|
|
|
eob = SMTP_EOB;
|
|
|
|
len = SMTP_EOB_LEN;
|
|
|
|
if(smtp->trailing_crlf || !conn->data->set.infilesize) {
|
|
|
|
eob += 2;
|
|
|
|
len -= 2;
|
|
|
|
}
|
2012-02-14 15:21:21 +01:00
|
|
|
|
|
|
|
/* Send the end of block data */
|
2013-05-04 10:52:09 +02:00
|
|
|
result = Curl_write(conn, conn->writesockfd, eob, len, &bytes_written);
|
2012-02-20 13:18:22 +01:00
|
|
|
if(result)
|
|
|
|
return result;
|
|
|
|
|
2013-05-04 10:52:09 +02:00
|
|
|
if(bytes_written != len) {
|
2012-02-20 13:18:22 +01:00
|
|
|
/* The whole chunk was not sent so keep it around and adjust the
|
|
|
|
pingpong structure accordingly */
|
2013-05-04 10:52:09 +02:00
|
|
|
pp->sendthis = strdup(eob);
|
|
|
|
pp->sendsize = len;
|
|
|
|
pp->sendleft = len - bytes_written;
|
2012-02-20 13:18:22 +01:00
|
|
|
}
|
|
|
|
else
|
|
|
|
/* Successfully sent so adjust the response timeout relative to now */
|
|
|
|
pp->response = Curl_tvnow();
|
2010-03-02 14:26:23 +01:00
|
|
|
|
2010-02-20 22:56:48 +01:00
|
|
|
state(conn, SMTP_POSTDATA);
|
2012-02-14 15:21:21 +01:00
|
|
|
|
|
|
|
/* Run the state-machine
|
2010-02-20 22:56:48 +01:00
|
|
|
|
|
|
|
TODO: when the multi interface is used, this _really_ should be using
|
|
|
|
the smtp_multi_statemach function but we have no general support for
|
|
|
|
non-blocking DONE operations, not in the multi state machine and with
|
|
|
|
Curl_done() invokes on several places in the code!
|
|
|
|
*/
|
2013-02-15 11:03:42 +01:00
|
|
|
result = smtp_block_statemach(conn);
|
2010-02-20 22:56:48 +01:00
|
|
|
}
|
|
|
|
|
2013-02-23 12:34:52 +01:00
|
|
|
/* Clear the transfer mode for the next request */
|
2009-12-12 22:54:01 +01:00
|
|
|
smtp->transfer = FTPTRANSFER_BODY;
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
*
|
|
|
|
* smtp_perform()
|
|
|
|
*
|
2013-02-23 20:46:21 +01:00
|
|
|
* This is the actual DO function for SMTP. Send a mail according to the
|
|
|
|
* options previously setup.
|
2009-12-12 22:54:01 +01:00
|
|
|
*/
|
2012-06-05 13:23:01 +02:00
|
|
|
static CURLcode smtp_perform(struct connectdata *conn, bool *connected,
|
|
|
|
bool *dophase_done)
|
2009-12-12 22:54:01 +01:00
|
|
|
{
|
2012-06-05 13:23:01 +02:00
|
|
|
/* This is SMTP and no proxy */
|
2011-08-24 08:55:25 +02:00
|
|
|
CURLcode result = CURLE_OK;
|
2009-12-12 22:54:01 +01:00
|
|
|
|
|
|
|
DEBUGF(infof(conn->data, "DO phase starts\n"));
|
|
|
|
|
|
|
|
if(conn->data->set.opt_no_body) {
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Requested no body means no transfer */
|
2013-08-05 10:32:08 +02:00
|
|
|
struct SMTP *smtp = conn->data->req.protop;
|
2009-12-12 22:54:01 +01:00
|
|
|
smtp->transfer = FTPTRANSFER_INFO;
|
|
|
|
}
|
|
|
|
|
|
|
|
*dophase_done = FALSE; /* not done yet */
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Start the first command in the DO phase */
|
2013-04-16 20:47:15 +02:00
|
|
|
result = smtp_perform_mail(conn);
|
2009-12-12 22:54:01 +01:00
|
|
|
if(result)
|
|
|
|
return result;
|
|
|
|
|
2013-01-17 12:59:23 +01:00
|
|
|
/* run the state-machine */
|
|
|
|
result = smtp_multi_statemach(conn, dophase_done);
|
|
|
|
|
2011-08-19 23:38:45 +02:00
|
|
|
*connected = conn->bits.tcpconnect[FIRSTSOCKET];
|
2009-12-12 22:54:01 +01:00
|
|
|
|
|
|
|
if(*dophase_done)
|
|
|
|
DEBUGF(infof(conn->data, "DO phase is complete\n"));
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
*
|
|
|
|
* smtp_do()
|
|
|
|
*
|
|
|
|
* This function is registered as 'curl_do' function. It decodes the path
|
|
|
|
* parts etc as a wrapper to the actual DO function (smtp_perform).
|
|
|
|
*
|
|
|
|
* The input argument is already checked for validity.
|
|
|
|
*/
|
|
|
|
static CURLcode smtp_do(struct connectdata *conn, bool *done)
|
|
|
|
{
|
2013-02-17 00:37:50 +01:00
|
|
|
CURLcode result = CURLE_OK;
|
2009-12-12 22:54:01 +01:00
|
|
|
|
|
|
|
*done = FALSE; /* default to false */
|
|
|
|
|
2013-02-17 00:37:50 +01:00
|
|
|
result = smtp_regular_transfer(conn, done);
|
2009-12-12 22:54:01 +01:00
|
|
|
|
2013-02-17 00:37:50 +01:00
|
|
|
return result;
|
2009-12-12 22:54:01 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
*
|
|
|
|
* smtp_disconnect()
|
|
|
|
*
|
|
|
|
* Disconnect from an SMTP server. Cleanup protocol-specific per-connection
|
|
|
|
* resources. BLOCKING.
|
|
|
|
*/
|
2011-08-24 08:55:25 +02:00
|
|
|
static CURLcode smtp_disconnect(struct connectdata *conn,
|
|
|
|
bool dead_connection)
|
2009-12-12 22:54:01 +01:00
|
|
|
{
|
2011-08-24 08:55:25 +02:00
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
2009-12-12 22:54:01 +01:00
|
|
|
|
|
|
|
/* We cannot send quit unconditionally. If this connection is stale or
|
|
|
|
bad in any way, sending quit and waiting around here will make the
|
2013-02-23 21:02:05 +01:00
|
|
|
disconnect wait in vain and cause more problems than we need to. */
|
2009-12-12 22:54:01 +01:00
|
|
|
|
|
|
|
/* The SMTP session may or may not have been allocated/setup at this
|
|
|
|
point! */
|
2010-11-19 13:43:20 +01:00
|
|
|
if(!dead_connection && smtpc->pp.conn)
|
2013-04-16 20:47:15 +02:00
|
|
|
if(!smtp_perform_quit(conn))
|
2013-03-09 12:55:48 +01:00
|
|
|
(void)smtp_block_statemach(conn); /* ignore errors on QUIT */
|
2009-12-12 22:54:01 +01:00
|
|
|
|
2012-06-09 20:22:29 +02:00
|
|
|
/* Disconnect from the server */
|
2009-12-12 22:54:01 +01:00
|
|
|
Curl_pp_disconnect(&smtpc->pp);
|
|
|
|
|
2012-06-09 20:22:29 +02:00
|
|
|
/* Cleanup the SASL module */
|
2012-06-02 12:07:58 +02:00
|
|
|
Curl_sasl_cleanup(conn, smtpc->authused);
|
2011-10-01 15:46:14 +02:00
|
|
|
|
2012-06-09 20:22:29 +02:00
|
|
|
/* Cleanup our connection based variables */
|
2010-05-18 23:44:19 +02:00
|
|
|
Curl_safefree(smtpc->domain);
|
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
return CURLE_OK;
|
|
|
|
}
|
|
|
|
|
2012-06-05 13:23:01 +02:00
|
|
|
/* Call this when the DO phase has completed */
|
2012-04-01 22:09:38 +02:00
|
|
|
static CURLcode smtp_dophase_done(struct connectdata *conn, bool connected)
|
2009-12-12 22:54:01 +01:00
|
|
|
{
|
2013-08-05 10:32:08 +02:00
|
|
|
struct SMTP *smtp = conn->data->req.protop;
|
2012-06-09 20:49:59 +02:00
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
(void)connected;
|
|
|
|
|
|
|
|
if(smtp->transfer != FTPTRANSFER_BODY)
|
|
|
|
/* no data to transfer */
|
2010-04-16 23:43:04 +02:00
|
|
|
Curl_setup_transfer(conn, -1, -1, FALSE, NULL, -1, NULL);
|
2009-12-12 22:54:01 +01:00
|
|
|
|
2010-04-16 23:43:04 +02:00
|
|
|
return CURLE_OK;
|
2009-12-12 22:54:01 +01:00
|
|
|
}
|
|
|
|
|
2013-01-04 02:50:28 +01:00
|
|
|
/* Called from multi.c while DOing */
|
2012-04-01 22:09:38 +02:00
|
|
|
static CURLcode smtp_doing(struct connectdata *conn, bool *dophase_done)
|
2009-12-12 22:54:01 +01:00
|
|
|
{
|
2012-05-22 23:08:25 +02:00
|
|
|
CURLcode result = smtp_multi_statemach(conn, dophase_done);
|
2009-12-12 22:54:01 +01:00
|
|
|
|
2012-05-22 23:08:25 +02:00
|
|
|
if(result)
|
|
|
|
DEBUGF(infof(conn->data, "DO phase failed\n"));
|
2013-03-09 00:02:20 +01:00
|
|
|
else if(*dophase_done) {
|
|
|
|
result = smtp_dophase_done(conn, FALSE /* not connected */);
|
2012-05-22 23:08:25 +02:00
|
|
|
|
2013-03-09 00:02:20 +01:00
|
|
|
DEBUGF(infof(conn->data, "DO phase is complete\n"));
|
2012-12-30 00:06:25 +01:00
|
|
|
}
|
2011-10-01 13:35:36 +02:00
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
*
|
|
|
|
* smtp_regular_transfer()
|
|
|
|
*
|
|
|
|
* The input argument is already checked for validity.
|
|
|
|
*
|
|
|
|
* Performs all commands done before a regular transfer between a local and a
|
|
|
|
* remote host.
|
|
|
|
*/
|
2012-02-16 11:43:17 +01:00
|
|
|
static CURLcode smtp_regular_transfer(struct connectdata *conn,
|
|
|
|
bool *dophase_done)
|
2009-12-12 22:54:01 +01:00
|
|
|
{
|
2011-08-24 08:55:25 +02:00
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
bool connected = FALSE;
|
2009-12-12 22:54:01 +01:00
|
|
|
struct SessionHandle *data = conn->data;
|
2012-12-28 21:22:33 +01:00
|
|
|
|
|
|
|
/* Make sure size is unknown at this point */
|
|
|
|
data->req.size = -1;
|
2009-12-12 22:54:01 +01:00
|
|
|
|
2013-03-09 00:25:04 +01:00
|
|
|
/* Set the progress data */
|
2009-12-12 22:54:01 +01:00
|
|
|
Curl_pgrsSetUploadCounter(data, 0);
|
|
|
|
Curl_pgrsSetDownloadCounter(data, 0);
|
|
|
|
Curl_pgrsSetUploadSize(data, 0);
|
|
|
|
Curl_pgrsSetDownloadSize(data, 0);
|
|
|
|
|
2013-03-09 00:25:04 +01:00
|
|
|
/* Carry out the perform */
|
2012-06-05 13:23:01 +02:00
|
|
|
result = smtp_perform(conn, &connected, dophase_done);
|
2009-12-12 22:54:01 +01:00
|
|
|
|
2013-03-09 00:25:04 +01:00
|
|
|
/* Perform post DO phase operations if necessary */
|
|
|
|
if(!result && *dophase_done)
|
2009-12-12 22:54:01 +01:00
|
|
|
result = smtp_dophase_done(conn, connected);
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2011-08-24 08:55:25 +02:00
|
|
|
static CURLcode smtp_setup_connection(struct connectdata *conn)
|
2009-12-12 22:54:01 +01:00
|
|
|
{
|
|
|
|
struct SessionHandle *data = conn->data;
|
2013-08-04 19:34:16 +02:00
|
|
|
CURLcode result;
|
2009-12-12 22:54:01 +01:00
|
|
|
|
|
|
|
if(conn->bits.httpproxy && !data->set.tunnel_thru_httpproxy) {
|
2013-02-13 21:12:21 +01:00
|
|
|
/* Unless we have asked to tunnel SMTP operations through the proxy, we
|
2009-12-12 22:54:01 +01:00
|
|
|
switch and use HTTP operations only */
|
|
|
|
#ifndef CURL_DISABLE_HTTP
|
|
|
|
if(conn->handler == &Curl_handler_smtp)
|
|
|
|
conn->handler = &Curl_handler_smtp_proxy;
|
|
|
|
else {
|
|
|
|
#ifdef USE_SSL
|
|
|
|
conn->handler = &Curl_handler_smtps_proxy;
|
|
|
|
#else
|
|
|
|
failf(data, "SMTPS not supported!");
|
|
|
|
return CURLE_UNSUPPORTED_PROTOCOL;
|
|
|
|
#endif
|
|
|
|
}
|
2013-08-04 19:34:16 +02:00
|
|
|
/* set it up as a HTTP connection instead */
|
|
|
|
return conn->handler->setup_connection(conn);
|
2012-02-16 11:43:17 +01:00
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
#else
|
|
|
|
failf(data, "SMTP over http proxy requires HTTP support built-in!");
|
|
|
|
return CURLE_UNSUPPORTED_PROTOCOL;
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
2013-08-04 19:34:16 +02:00
|
|
|
/* Initialise the SMTP layer */
|
|
|
|
result = smtp_init(conn);
|
|
|
|
if(result)
|
|
|
|
return result;
|
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
data->state.path++; /* don't include the initial slash */
|
|
|
|
|
|
|
|
return CURLE_OK;
|
|
|
|
}
|
|
|
|
|
2013-04-13 17:21:58 +02:00
|
|
|
/***********************************************************************
|
|
|
|
*
|
|
|
|
* smtp_parse_url_options()
|
|
|
|
*
|
|
|
|
* Parse the URL login options.
|
|
|
|
*/
|
|
|
|
static CURLcode smtp_parse_url_options(struct connectdata *conn)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
|
|
|
const char *options = conn->options;
|
|
|
|
const char *ptr = options;
|
|
|
|
|
|
|
|
if(options) {
|
|
|
|
const char *key = ptr;
|
|
|
|
|
|
|
|
while(*ptr && *ptr != '=')
|
|
|
|
ptr++;
|
|
|
|
|
|
|
|
if(strnequal(key, "AUTH", 4)) {
|
|
|
|
const char *value = ptr + 1;
|
|
|
|
|
|
|
|
if(strequal(value, "*"))
|
|
|
|
smtpc->prefmech = SASL_AUTH_ANY;
|
|
|
|
else if(strequal(value, "LOGIN"))
|
|
|
|
smtpc->prefmech = SASL_MECH_LOGIN;
|
|
|
|
else if(strequal(value, "PLAIN"))
|
|
|
|
smtpc->prefmech = SASL_MECH_PLAIN;
|
|
|
|
else if(strequal(value, "CRAM-MD5"))
|
|
|
|
smtpc->prefmech = SASL_MECH_CRAM_MD5;
|
|
|
|
else if(strequal(value, "DIGEST-MD5"))
|
|
|
|
smtpc->prefmech = SASL_MECH_DIGEST_MD5;
|
|
|
|
else if(strequal(value, "GSSAPI"))
|
|
|
|
smtpc->prefmech = SASL_MECH_GSSAPI;
|
|
|
|
else if(strequal(value, "NTLM"))
|
|
|
|
smtpc->prefmech = SASL_MECH_NTLM;
|
2013-08-25 19:17:58 +02:00
|
|
|
else if(strequal(value, "XOAUTH2"))
|
|
|
|
smtpc->prefmech = SASL_MECH_XOAUTH2;
|
2013-04-13 17:21:58 +02:00
|
|
|
else
|
|
|
|
smtpc->prefmech = SASL_AUTH_NONE;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
result = CURLE_URL_MALFORMAT;
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2013-04-13 00:15:51 +02:00
|
|
|
/***********************************************************************
|
|
|
|
*
|
|
|
|
* smtp_parse_url_path()
|
|
|
|
*
|
|
|
|
* Parse the URL path into separate path components.
|
|
|
|
*/
|
|
|
|
static CURLcode smtp_parse_url_path(struct connectdata *conn)
|
|
|
|
{
|
|
|
|
/* The SMTP struct is already initialised in smtp_connect() */
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
|
|
|
const char *path = data->state.path;
|
|
|
|
char localhost[HOSTNAME_MAX + 1];
|
|
|
|
|
|
|
|
/* Calculate the path if necessary */
|
|
|
|
if(!*path) {
|
|
|
|
if(!Curl_gethostname(localhost, sizeof(localhost)))
|
|
|
|
path = localhost;
|
|
|
|
else
|
|
|
|
path = "localhost";
|
|
|
|
}
|
|
|
|
|
|
|
|
/* URL decode the path and use it as the domain in our EHLO */
|
|
|
|
return Curl_urldecode(conn->data, path, 0, &smtpc->domain, NULL, TRUE);
|
|
|
|
}
|
|
|
|
|
2010-03-28 08:45:16 +02:00
|
|
|
CURLcode Curl_smtp_escape_eob(struct connectdata *conn, ssize_t nread)
|
2009-12-30 23:09:43 +01:00
|
|
|
{
|
2012-05-17 12:31:06 +02:00
|
|
|
/* When sending a SMTP payload we must detect CRLF. sequences making sure
|
|
|
|
they are sent as CRLF.. instead, as a . on the beginning of a line will
|
|
|
|
be deleted by the server when not part of an EOB terminator and a
|
|
|
|
genuine CRLF.CRLF which isn't escaped will wrongly be detected as end of
|
2013-05-04 10:58:32 +02:00
|
|
|
data by the server
|
2012-05-17 12:31:06 +02:00
|
|
|
*/
|
2010-04-02 21:02:35 +02:00
|
|
|
ssize_t i;
|
|
|
|
ssize_t si;
|
2009-12-30 23:09:43 +01:00
|
|
|
struct SessionHandle *data = conn->data;
|
2013-08-05 10:32:08 +02:00
|
|
|
struct SMTP *smtp = data->req.protop;
|
2009-12-30 23:09:43 +01:00
|
|
|
|
2012-02-17 19:24:52 +01:00
|
|
|
/* Do we need to allocate the scatch buffer? */
|
2012-05-17 12:31:06 +02:00
|
|
|
if(!data->state.scratch) {
|
2011-08-24 08:55:25 +02:00
|
|
|
data->state.scratch = malloc(2 * BUFSIZE);
|
2012-02-17 19:24:52 +01:00
|
|
|
|
|
|
|
if(!data->state.scratch) {
|
|
|
|
failf (data, "Failed to alloc scratch buffer!");
|
|
|
|
return CURLE_OUT_OF_MEMORY;
|
|
|
|
}
|
2009-12-30 23:09:43 +01:00
|
|
|
}
|
2012-02-16 11:43:17 +01:00
|
|
|
|
2009-12-30 23:09:43 +01:00
|
|
|
/* This loop can be improved by some kind of Boyer-Moore style of
|
|
|
|
approach but that is saved for later... */
|
2011-10-20 00:13:09 +02:00
|
|
|
for(i = 0, si = 0; i < nread; i++) {
|
2013-05-04 10:52:09 +02:00
|
|
|
if(SMTP_EOB[smtp->eob] == data->req.upload_fromhere[i]) {
|
2013-04-30 23:22:22 +02:00
|
|
|
smtp->eob++;
|
2013-05-04 10:52:09 +02:00
|
|
|
|
|
|
|
/* Is the EOB potentially the terminating CRLF? */
|
|
|
|
if(2 == smtp->eob || SMTP_EOB_LEN == smtp->eob)
|
|
|
|
smtp->trailing_crlf = TRUE;
|
|
|
|
else
|
|
|
|
smtp->trailing_crlf = FALSE;
|
|
|
|
}
|
2013-04-30 23:22:22 +02:00
|
|
|
else if(smtp->eob) {
|
2012-02-17 19:24:52 +01:00
|
|
|
/* A previous substring matched so output that first */
|
2013-04-30 23:22:22 +02:00
|
|
|
memcpy(&data->state.scratch[si], SMTP_EOB, smtp->eob);
|
|
|
|
si += smtp->eob;
|
2011-10-20 00:13:09 +02:00
|
|
|
|
2012-04-01 22:09:38 +02:00
|
|
|
/* Then compare the first byte */
|
2011-10-20 12:58:26 +02:00
|
|
|
if(SMTP_EOB[0] == data->req.upload_fromhere[i])
|
2013-04-30 23:22:22 +02:00
|
|
|
smtp->eob = 1;
|
2011-10-20 00:13:09 +02:00
|
|
|
else
|
2013-04-30 23:22:22 +02:00
|
|
|
smtp->eob = 0;
|
2013-05-04 10:52:09 +02:00
|
|
|
|
|
|
|
/* Reset the trailing CRLF flag as there was more data */
|
|
|
|
smtp->trailing_crlf = FALSE;
|
2009-12-30 23:09:43 +01:00
|
|
|
}
|
2011-10-20 00:13:09 +02:00
|
|
|
|
2013-05-04 10:58:32 +02:00
|
|
|
/* Do we have a match for CRLF. as per RFC-5321, sect. 4.5.2 */
|
2013-04-30 23:22:22 +02:00
|
|
|
if(SMTP_EOB_FIND_LEN == smtp->eob) {
|
2012-05-17 12:31:06 +02:00
|
|
|
/* Copy the replacement data to the target buffer */
|
|
|
|
memcpy(&data->state.scratch[si], SMTP_EOB_REPL, SMTP_EOB_REPL_LEN);
|
2011-10-20 00:13:09 +02:00
|
|
|
si += SMTP_EOB_REPL_LEN;
|
2013-04-30 23:22:22 +02:00
|
|
|
smtp->eob = 0;
|
2009-12-30 23:09:43 +01:00
|
|
|
}
|
2013-04-30 23:22:22 +02:00
|
|
|
else if(!smtp->eob)
|
2011-10-20 00:13:09 +02:00
|
|
|
data->state.scratch[si++] = data->req.upload_fromhere[i];
|
2012-02-16 11:43:17 +01:00
|
|
|
}
|
2009-12-30 23:09:43 +01:00
|
|
|
|
2013-04-30 23:22:22 +02:00
|
|
|
if(smtp->eob) {
|
2012-02-17 19:24:52 +01:00
|
|
|
/* A substring matched before processing ended so output that now */
|
2013-04-30 23:22:22 +02:00
|
|
|
memcpy(&data->state.scratch[si], SMTP_EOB, smtp->eob);
|
|
|
|
si += smtp->eob;
|
|
|
|
smtp->eob = 0;
|
2012-02-17 19:24:52 +01:00
|
|
|
}
|
|
|
|
|
2009-12-30 23:09:43 +01:00
|
|
|
if(si != nread) {
|
2012-04-01 22:09:38 +02:00
|
|
|
/* Only use the new buffer if we replaced something */
|
2009-12-30 23:09:43 +01:00
|
|
|
nread = si;
|
|
|
|
|
2012-04-01 22:09:38 +02:00
|
|
|
/* Upload from the new (replaced) buffer instead */
|
2009-12-30 23:09:43 +01:00
|
|
|
data->req.upload_fromhere = data->state.scratch;
|
|
|
|
|
2012-04-01 22:09:38 +02:00
|
|
|
/* Set the new amount too */
|
2009-12-30 23:09:43 +01:00
|
|
|
data->req.upload_present = nread;
|
|
|
|
}
|
2011-10-01 13:35:36 +02:00
|
|
|
|
2009-12-30 23:09:43 +01:00
|
|
|
return CURLE_OK;
|
|
|
|
}
|
|
|
|
|
2009-12-12 22:54:01 +01:00
|
|
|
#endif /* CURL_DISABLE_SMTP */
|