2009-12-13 00:54:01 +03:00
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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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2012-02-14 18:21:21 +04:00
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* Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
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2009-12-13 00:54:01 +03:00
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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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* RFC2821 SMTP protocol
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2010-02-22 15:41:02 +03:00
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* RFC3207 SMTP over TLS
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2010-04-19 13:16:30 +04:00
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* RFC4954 SMTP Authentication
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* RFC2195 CRAM-MD5 authentication
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2012-03-31 00:50:56 +04:00
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* RFC2831 DIGEST-MD5 authentication
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2010-04-19 13:16:30 +04:00
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* RFC4616 PLAIN authentication
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2009-12-13 00:54:01 +03:00
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*
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***************************************************************************/
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#include "setup.h"
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#ifndef CURL_DISABLE_SMTP
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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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 20:59:56 +03:00
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#ifdef __VMS
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2009-12-13 00:54:01 +03:00
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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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#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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#include "strtoofft.h"
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2010-04-19 13:16:30 +04:00
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#include "curl_base64.h"
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2012-03-31 00:50:56 +04:00
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#include "curl_rand.h"
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2010-04-19 13:16:30 +04:00
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#include "curl_md5.h"
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#include "curl_hmac.h"
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2010-07-30 02:47:49 +04:00
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#include "curl_gethostname.h"
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2011-10-01 17:46:14 +04:00
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#include "curl_ntlm_msgs.h"
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2012-05-26 00:49:25 +04:00
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#include "curl_sasl.h"
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2010-12-02 01:33:43 +03:00
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#include "warnless.h"
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2009-12-13 00:54:01 +03:00
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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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#include "memdebug.h"
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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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2012-04-02 00:09:38 +04:00
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static CURLcode smtp_done(struct connectdata *conn, CURLcode status,
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bool premature);
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2009-12-13 00:54:01 +03:00
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static CURLcode smtp_connect(struct connectdata *conn, bool *done);
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2011-04-20 17:17:42 +04:00
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static CURLcode smtp_disconnect(struct connectdata *conn, bool dead);
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2009-12-13 00:54:01 +03:00
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static CURLcode smtp_multi_statemach(struct connectdata *conn, bool *done);
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static int smtp_getsock(struct connectdata *conn,
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curl_socket_t *socks,
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int numsocks);
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2012-04-02 00:09:38 +04:00
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static CURLcode smtp_doing(struct connectdata *conn, bool *dophase_done);
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2012-02-16 14:43:17 +04:00
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static CURLcode smtp_setup_connection(struct connectdata *conn);
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2011-02-17 00:28:01 +03:00
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static CURLcode smtp_state_upgrade_tls(struct connectdata *conn);
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2009-12-21 01:11:16 +03:00
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2009-12-13 00:54:01 +03:00
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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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2011-10-22 01:36:54 +04:00
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ZERO_NULL, /* domore_getsock */
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2009-12-13 00:54:01 +03:00
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ZERO_NULL, /* perform_getsock */
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smtp_disconnect, /* disconnect */
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2011-05-05 18:27:03 +04:00
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ZERO_NULL, /* readwrite */
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2009-12-13 00:54:01 +03:00
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PORT_SMTP, /* defport */
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2011-03-15 00:52:14 +03:00
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CURLPROTO_SMTP, /* protocol */
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2011-11-25 02:28:54 +04:00
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PROTOPT_CLOSEACTION | PROTOPT_NOURLQUERY /* flags */
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2009-12-13 00:54:01 +03:00
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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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2011-10-22 01:36:54 +04:00
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ZERO_NULL, /* domore_getsock */
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2009-12-13 00:54:01 +03:00
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ZERO_NULL, /* perform_getsock */
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smtp_disconnect, /* disconnect */
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2011-05-05 18:27:03 +04:00
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ZERO_NULL, /* readwrite */
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2009-12-13 00:54:01 +03:00
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PORT_SMTPS, /* defport */
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2011-03-15 00:52:14 +03:00
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CURLPROTO_SMTP | CURLPROTO_SMTPS, /* protocol */
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2011-11-25 02:28:54 +04:00
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PROTOPT_CLOSEACTION | PROTOPT_SSL
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| PROTOPT_NOURLQUERY /* flags */
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2009-12-13 00:54:01 +03:00
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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 02:41:02 +03:00
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static const struct Curl_handler Curl_handler_smtp_proxy = {
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2009-12-13 00:54:01 +03:00
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"SMTP", /* scheme */
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ZERO_NULL, /* setup_connection */
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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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2011-10-22 01:36:54 +04:00
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ZERO_NULL, /* domore_getsock */
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2009-12-13 00:54:01 +03:00
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ZERO_NULL, /* perform_getsock */
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ZERO_NULL, /* disconnect */
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2011-05-05 18:27:03 +04:00
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ZERO_NULL, /* readwrite */
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2009-12-13 00:54:01 +03:00
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PORT_SMTP, /* defport */
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2011-03-15 00:52:14 +03:00
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CURLPROTO_HTTP, /* protocol */
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2011-03-15 00:22:22 +03:00
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PROTOPT_NONE /* flags */
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2009-12-13 00:54:01 +03:00
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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 02:41:02 +03:00
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static const struct Curl_handler Curl_handler_smtps_proxy = {
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2009-12-13 00:54:01 +03:00
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"SMTPS", /* scheme */
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ZERO_NULL, /* setup_connection */
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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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2011-10-22 01:36:54 +04:00
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ZERO_NULL, /* domore_getsock */
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2009-12-13 00:54:01 +03:00
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ZERO_NULL, /* perform_getsock */
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ZERO_NULL, /* disconnect */
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2011-05-05 18:27:03 +04:00
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ZERO_NULL, /* readwrite */
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2009-12-13 00:54:01 +03:00
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PORT_SMTPS, /* defport */
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2011-03-15 00:52:14 +03:00
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CURLPROTO_HTTP, /* protocol */
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2011-03-15 00:22:22 +03:00
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PROTOPT_NONE /* flags */
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2009-12-13 00:54:01 +03:00
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};
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#endif
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#endif
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2010-04-19 13:16:30 +04:00
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/* Function that checks for an ending smtp status code at the start of the
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given string.
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As a side effect, it also flags allowed authentication mechanisms according
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to EHLO AUTH response. */
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2009-12-13 00:54:01 +03:00
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static int smtp_endofresp(struct pingpong *pp, int *resp)
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{
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char *line = pp->linestart_resp;
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size_t len = pp->nread_resp;
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2010-04-19 13:16:30 +04:00
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struct connectdata *conn = pp->conn;
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struct smtp_conn *smtpc = &conn->proto.smtpc;
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int result;
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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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2012-04-02 00:09:38 +04:00
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return FALSE; /* Nothing for us */
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2010-04-19 13:16:30 +04:00
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2010-12-03 18:53:11 +03:00
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if((result = (line[3] == ' ')) != 0)
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2010-12-02 01:33:43 +03:00
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*resp = curlx_sltosi(strtol(line, NULL, 10));
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2010-04-19 13:16:30 +04:00
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line += 4;
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len -= 4;
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if(smtpc->state == SMTP_EHLO && len >= 5 && !memcmp(line, "AUTH ", 5)) {
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line += 5;
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len -= 5;
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2011-04-20 17:17:42 +04:00
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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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2010-04-19 13:16:30 +04:00
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line++;
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len--;
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}
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2009-12-13 00:54:01 +03:00
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2010-04-19 13:16:30 +04:00
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if(!len)
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break;
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2011-04-20 17:17:42 +04:00
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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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2010-04-19 13:16:30 +04:00
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wordlen++;
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if(wordlen == 5 && !memcmp(line, "LOGIN", 5))
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2012-05-26 00:58:17 +04:00
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smtpc->authmechs |= SASL_AUTH_LOGIN;
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2010-04-19 13:16:30 +04:00
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else if(wordlen == 5 && !memcmp(line, "PLAIN", 5))
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2012-05-26 00:58:17 +04:00
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smtpc->authmechs |= SASL_AUTH_PLAIN;
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2010-04-19 13:16:30 +04:00
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else if(wordlen == 8 && !memcmp(line, "CRAM-MD5", 8))
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2012-05-26 00:58:17 +04:00
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smtpc->authmechs |= SASL_AUTH_CRAM_MD5;
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2010-04-19 13:16:30 +04:00
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else if(wordlen == 10 && !memcmp(line, "DIGEST-MD5", 10))
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2012-05-26 00:58:17 +04:00
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smtpc->authmechs |= SASL_AUTH_DIGEST_MD5;
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2010-04-19 13:16:30 +04:00
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else if(wordlen == 6 && !memcmp(line, "GSSAPI", 6))
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2012-05-26 00:58:17 +04:00
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smtpc->authmechs |= SASL_AUTH_GSSAPI;
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2010-04-19 13:16:30 +04:00
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else if(wordlen == 8 && !memcmp(line, "EXTERNAL", 8))
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2012-05-26 00:58:17 +04:00
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smtpc->authmechs |= SASL_AUTH_EXTERNAL;
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2011-10-01 17:46:14 +04:00
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else if(wordlen == 4 && !memcmp(line, "NTLM", 4))
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2012-05-26 00:58:17 +04:00
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smtpc->authmechs |= SASL_AUTH_NTLM;
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2010-04-19 13:16:30 +04:00
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line += wordlen;
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len -= wordlen;
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}
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2009-12-13 00:54:01 +03:00
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}
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2010-04-19 13:16:30 +04:00
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return result;
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2009-12-13 00:54:01 +03:00
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}
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2012-03-31 00:50:56 +04:00
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#ifndef CURL_DISABLE_CRYPTO_AUTH
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/* Retrieves the value for a corresponding key from the challenge string
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* returns TRUE if the key could be found, FALSE if it does not exists
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*/
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static bool smtp_digest_get_key_value(const unsigned char *chlg,
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const char *key,
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char *value,
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size_t max_val_len,
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char end_char)
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{
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char *find_pos;
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size_t i;
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find_pos = strstr((const char *) chlg, key);
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if(!find_pos)
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return FALSE;
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find_pos += strlen(key);
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|
|
|
|
|
|
|
for(i = 0; *find_pos && *find_pos != end_char && i < max_val_len - 1; ++i)
|
|
|
|
value[i] = *find_pos++;
|
|
|
|
value[i] = '\0';
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
/* This is the ONLY way to change SMTP state! */
|
2012-04-02 00:09:38 +04:00
|
|
|
static void state(struct connectdata *conn, smtpstate newstate)
|
2009-12-13 00:54:01 +03:00
|
|
|
{
|
2010-05-19 01:44:19 +04:00
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
2009-12-13 00:54:01 +03:00
|
|
|
#if defined(DEBUGBUILD) && !defined(CURL_DISABLE_VERBOSE_STRINGS)
|
|
|
|
/* for debug purposes */
|
2011-08-24 10:55:25 +04:00
|
|
|
static const char * const names[] = {
|
2009-12-13 00:54:01 +03:00
|
|
|
"STOP",
|
|
|
|
"SERVERGREET",
|
|
|
|
"EHLO",
|
2010-02-22 15:41:02 +03:00
|
|
|
"HELO",
|
2009-12-13 00:54:01 +03:00
|
|
|
"STARTTLS",
|
2011-02-17 00:28:01 +03:00
|
|
|
"UPGRADETLS",
|
2010-04-19 13:16:30 +04:00
|
|
|
"AUTHPLAIN",
|
|
|
|
"AUTHLOGIN",
|
|
|
|
"AUTHPASSWD",
|
|
|
|
"AUTHCRAM",
|
2012-03-31 00:50:56 +04:00
|
|
|
"AUTHDIGESTMD5",
|
|
|
|
"AUTHDIGESTMD5_RESP",
|
2011-10-01 17:46:14 +04:00
|
|
|
"AUTHNTLM",
|
|
|
|
"AUTHNTLM_TYPE2MSG",
|
2010-04-19 13:16:30 +04:00
|
|
|
"AUTH",
|
2009-12-13 00:54:01 +03:00
|
|
|
"MAIL",
|
|
|
|
"RCPT",
|
|
|
|
"DATA",
|
2010-02-21 00:56:48 +03:00
|
|
|
"POSTDATA",
|
2009-12-13 00:54:01 +03:00
|
|
|
"QUIT",
|
|
|
|
/* LAST */
|
|
|
|
};
|
|
|
|
if(smtpc->state != newstate)
|
|
|
|
infof(conn->data, "SMTP %p state change from %s to %s\n",
|
|
|
|
smtpc, names[smtpc->state], names[newstate]);
|
|
|
|
#endif
|
|
|
|
smtpc->state = newstate;
|
|
|
|
}
|
|
|
|
|
|
|
|
static CURLcode smtp_state_ehlo(struct connectdata *conn)
|
|
|
|
{
|
|
|
|
CURLcode result;
|
2009-12-31 01:50:42 +03:00
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
2009-12-13 00:54:01 +03:00
|
|
|
|
2010-04-19 13:16:30 +04:00
|
|
|
smtpc->authmechs = 0; /* No known authentication mechanisms yet. */
|
2011-10-01 17:46:14 +04:00
|
|
|
smtpc->authused = 0; /* Clear the authentication mechanism used
|
|
|
|
for esmtp connections */
|
2010-04-19 13:16:30 +04:00
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
/* send EHLO */
|
2010-04-19 13:16:30 +04:00
|
|
|
result = Curl_pp_sendf(&smtpc->pp, "EHLO %s", smtpc->domain);
|
2010-02-22 15:41:02 +03:00
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
if(result)
|
|
|
|
return result;
|
|
|
|
|
|
|
|
state(conn, SMTP_EHLO);
|
2012-02-24 18:36:53 +04:00
|
|
|
|
2010-02-22 15:41:02 +03:00
|
|
|
return CURLE_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
static CURLcode smtp_state_helo(struct connectdata *conn)
|
|
|
|
{
|
|
|
|
CURLcode result;
|
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
|
|
|
|
2011-10-01 17:46:14 +04:00
|
|
|
smtpc->authused = 0; /* No authentication mechanism used in smtp
|
|
|
|
connections */
|
|
|
|
|
2010-02-22 15:41:02 +03:00
|
|
|
/* send HELO */
|
2010-04-19 13:16:30 +04:00
|
|
|
result = Curl_pp_sendf(&smtpc->pp, "HELO %s", smtpc->domain);
|
2010-02-22 15:41:02 +03:00
|
|
|
|
|
|
|
if(result)
|
|
|
|
return result;
|
2009-12-13 00:54:01 +03:00
|
|
|
|
2010-02-22 15:41:02 +03:00
|
|
|
state(conn, SMTP_HELO);
|
2012-02-24 18:36:53 +04:00
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
return CURLE_OK;
|
|
|
|
}
|
|
|
|
|
2011-08-24 10:07:36 +04:00
|
|
|
static CURLcode smtp_auth_plain_data(struct connectdata *conn,
|
|
|
|
char **outptr, size_t *outlen)
|
2010-04-19 13:16:30 +04:00
|
|
|
{
|
|
|
|
char plainauth[2 * MAX_CURL_USER_LENGTH + MAX_CURL_PASSWORD_LENGTH];
|
2010-05-20 22:15:52 +04:00
|
|
|
size_t ulen;
|
|
|
|
size_t plen;
|
2010-04-19 13:16:30 +04:00
|
|
|
|
|
|
|
ulen = strlen(conn->user);
|
|
|
|
plen = strlen(conn->passwd);
|
|
|
|
|
2012-04-02 00:09:38 +04:00
|
|
|
if(2 * ulen + plen + 2 > sizeof(plainauth)) {
|
2011-08-24 10:07:36 +04:00
|
|
|
*outlen = 0;
|
|
|
|
*outptr = NULL;
|
|
|
|
return CURLE_OUT_OF_MEMORY; /* plainauth too small */
|
|
|
|
}
|
2010-04-19 13:16:30 +04:00
|
|
|
|
|
|
|
memcpy(plainauth, conn->user, ulen);
|
|
|
|
plainauth[ulen] = '\0';
|
|
|
|
memcpy(plainauth + ulen + 1, conn->user, ulen);
|
|
|
|
plainauth[2 * ulen + 1] = '\0';
|
|
|
|
memcpy(plainauth + 2 * ulen + 2, conn->passwd, plen);
|
2012-04-02 00:09:38 +04:00
|
|
|
|
2011-04-20 17:17:42 +04:00
|
|
|
return Curl_base64_encode(conn->data, plainauth, 2 * ulen + plen + 2,
|
2011-08-24 10:07:36 +04:00
|
|
|
outptr, outlen);
|
2010-04-19 13:16:30 +04:00
|
|
|
}
|
|
|
|
|
2011-08-24 10:07:36 +04:00
|
|
|
static CURLcode smtp_auth_login_user(struct connectdata *conn,
|
|
|
|
char **outptr, size_t *outlen)
|
2010-04-19 13:16:30 +04:00
|
|
|
{
|
2011-08-24 10:07:36 +04:00
|
|
|
size_t ulen = strlen(conn->user);
|
2010-04-19 13:16:30 +04:00
|
|
|
|
|
|
|
if(!ulen) {
|
|
|
|
*outptr = strdup("=");
|
2011-08-24 10:07:36 +04:00
|
|
|
if(*outptr) {
|
|
|
|
*outlen = (size_t) 1;
|
|
|
|
return CURLE_OK;
|
|
|
|
}
|
|
|
|
*outlen = 0;
|
|
|
|
return CURLE_OUT_OF_MEMORY;
|
2010-04-19 13:16:30 +04:00
|
|
|
}
|
|
|
|
|
2011-08-24 10:07:36 +04:00
|
|
|
return Curl_base64_encode(conn->data, conn->user, ulen, outptr, outlen);
|
2010-04-19 13:16:30 +04:00
|
|
|
}
|
|
|
|
|
2011-10-01 17:46:14 +04:00
|
|
|
#ifdef USE_NTLM
|
|
|
|
static CURLcode smtp_auth_ntlm_type1_message(struct connectdata *conn,
|
|
|
|
char **outptr, size_t *outlen)
|
|
|
|
{
|
|
|
|
return Curl_ntlm_create_type1_message(conn->user, conn->passwd,
|
|
|
|
&conn->ntlm, outptr, outlen);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2010-04-19 13:16:30 +04:00
|
|
|
static CURLcode smtp_authenticate(struct connectdata *conn)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
2011-10-01 15:35:36 +04:00
|
|
|
char *initresp = NULL;
|
|
|
|
const char *mech = NULL;
|
|
|
|
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
|
2012-04-02 00:09:38 +04:00
|
|
|
connect phase if we don't */
|
2011-10-01 15:35:36 +04:00
|
|
|
if(!conn->bits.user_passwd) {
|
|
|
|
state(conn, SMTP_STOP);
|
2010-04-19 13:16:30 +04:00
|
|
|
|
2011-10-01 15:35:36 +04:00
|
|
|
return result;
|
|
|
|
}
|
2010-05-31 19:25:55 +04:00
|
|
|
|
2011-10-01 15:35:36 +04:00
|
|
|
/* Check supported authentication mechanisms by decreasing order of
|
2012-04-02 00:09:38 +04:00
|
|
|
security */
|
2010-04-19 13:16:30 +04:00
|
|
|
#ifndef CURL_DISABLE_CRYPTO_AUTH
|
2012-05-26 00:58:17 +04:00
|
|
|
if(smtpc->authmechs & SASL_AUTH_DIGEST_MD5) {
|
2012-03-31 00:50:56 +04:00
|
|
|
mech = "DIGEST-MD5";
|
|
|
|
state1 = SMTP_AUTHDIGESTMD5;
|
2012-05-26 00:58:17 +04:00
|
|
|
smtpc->authused = SASL_AUTH_DIGEST_MD5;
|
2012-03-31 00:50:56 +04:00
|
|
|
}
|
2012-05-26 00:58:17 +04:00
|
|
|
else if(smtpc->authmechs & SASL_AUTH_CRAM_MD5) {
|
2011-10-01 15:35:36 +04:00
|
|
|
mech = "CRAM-MD5";
|
2012-02-16 14:43:17 +04:00
|
|
|
state1 = SMTP_AUTHCRAMMD5;
|
2012-05-26 00:58:17 +04:00
|
|
|
smtpc->authused = SASL_AUTH_CRAM_MD5;
|
2011-10-01 17:46:14 +04:00
|
|
|
}
|
|
|
|
else
|
|
|
|
#endif
|
|
|
|
#ifdef USE_NTLM
|
2012-05-26 00:58:17 +04:00
|
|
|
if(smtpc->authmechs & SASL_AUTH_NTLM) {
|
2011-10-01 17:46:14 +04:00
|
|
|
mech = "NTLM";
|
|
|
|
state1 = SMTP_AUTHNTLM;
|
|
|
|
state2 = SMTP_AUTHNTLM_TYPE2MSG;
|
2012-05-26 00:58:17 +04:00
|
|
|
smtpc->authused = SASL_AUTH_NTLM;
|
2011-10-01 17:46:14 +04:00
|
|
|
result = smtp_auth_ntlm_type1_message(conn, &initresp, &len);
|
2011-10-01 15:35:36 +04:00
|
|
|
}
|
|
|
|
else
|
2010-04-19 13:16:30 +04:00
|
|
|
#endif
|
2012-05-26 00:58:17 +04:00
|
|
|
if(smtpc->authmechs & SASL_AUTH_LOGIN) {
|
2011-10-01 15:35:36 +04:00
|
|
|
mech = "LOGIN";
|
|
|
|
state1 = SMTP_AUTHLOGIN;
|
|
|
|
state2 = SMTP_AUTHPASSWD;
|
2012-05-26 00:58:17 +04:00
|
|
|
smtpc->authused = SASL_AUTH_LOGIN;
|
2011-10-01 15:35:36 +04:00
|
|
|
result = smtp_auth_login_user(conn, &initresp, &len);
|
|
|
|
}
|
2012-05-26 00:58:17 +04:00
|
|
|
else if(smtpc->authmechs & SASL_AUTH_PLAIN) {
|
2011-10-01 15:35:36 +04:00
|
|
|
mech = "PLAIN";
|
|
|
|
state1 = SMTP_AUTHPLAIN;
|
|
|
|
state2 = SMTP_AUTH;
|
2012-05-26 00:58:17 +04:00
|
|
|
smtpc->authused = SASL_AUTH_PLAIN;
|
2011-10-01 15:35:36 +04:00
|
|
|
result = smtp_auth_plain_data(conn, &initresp, &len);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
infof(conn->data, "No known auth mechanisms supported!\n");
|
2012-04-02 00:09:38 +04:00
|
|
|
result = CURLE_LOGIN_DENIED; /* Other mechanisms not supported */
|
2011-10-01 15:35:36 +04:00
|
|
|
}
|
2010-04-19 13:16:30 +04:00
|
|
|
|
2011-10-01 15:35:36 +04:00
|
|
|
if(!result) {
|
|
|
|
if(initresp &&
|
|
|
|
strlen(mech) + len <= 512 - 8) { /* AUTH <mech> ...<crlf> */
|
|
|
|
result = Curl_pp_sendf(&smtpc->pp, "AUTH %s %s", mech, initresp);
|
2010-04-19 13:16:30 +04:00
|
|
|
|
2011-10-01 15:35:36 +04:00
|
|
|
if(!result)
|
|
|
|
state(conn, state2);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
result = Curl_pp_sendf(&smtpc->pp, "AUTH %s", mech);
|
2010-04-19 13:16:30 +04:00
|
|
|
|
2011-10-01 15:35:36 +04:00
|
|
|
if(!result)
|
|
|
|
state(conn, state1);
|
2010-04-19 13:16:30 +04:00
|
|
|
}
|
2011-10-01 15:35:36 +04:00
|
|
|
Curl_safefree(initresp);
|
2010-04-19 13:16:30 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
/* 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);
|
|
|
|
}
|
|
|
|
|
2011-03-15 12:02:05 +03:00
|
|
|
#ifdef USE_SSL
|
|
|
|
static void smtp_to_smtps(struct connectdata *conn)
|
|
|
|
{
|
|
|
|
conn->handler = &Curl_handler_smtps;
|
|
|
|
}
|
|
|
|
#else
|
2011-09-03 18:06:10 +04:00
|
|
|
#define smtp_to_smtps(x) Curl_nop_stmt
|
2011-03-15 12:02:05 +03:00
|
|
|
#endif
|
|
|
|
|
2012-03-24 15:55:34 +04:00
|
|
|
/* for the initial server greeting */
|
|
|
|
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);
|
|
|
|
return CURLE_FTP_WEIRD_SERVER_REPLY;
|
|
|
|
}
|
|
|
|
|
|
|
|
result = smtp_state_ehlo(conn);
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
/* for STARTTLS responses */
|
|
|
|
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 15:55:34 +04:00
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
2010-02-22 15:41:02 +03:00
|
|
|
if(smtpcode != 220) {
|
2011-11-03 12:54:12 +04:00
|
|
|
if(data->set.use_ssl != CURLUSESSL_TRY) {
|
2010-02-22 15:41:02 +03:00
|
|
|
failf(data, "STARTTLS denied. %c", smtpcode);
|
2012-01-04 03:01:51 +04:00
|
|
|
result = CURLE_USE_SSL_FAILED;
|
2010-02-22 15:41:02 +03:00
|
|
|
}
|
2010-04-19 13:16:30 +04:00
|
|
|
else
|
|
|
|
result = smtp_authenticate(conn);
|
2009-12-13 00:54:01 +03:00
|
|
|
}
|
|
|
|
else {
|
2011-02-17 00:28:01 +03:00
|
|
|
if(data->state.used_interface == Curl_if_multi) {
|
|
|
|
state(conn, SMTP_UPGRADETLS);
|
|
|
|
return smtp_state_upgrade_tls(conn);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
result = Curl_ssl_connect(conn, FIRSTSOCKET);
|
|
|
|
if(CURLE_OK == result) {
|
|
|
|
smtp_to_smtps(conn);
|
|
|
|
result = smtp_state_ehlo(conn);
|
|
|
|
}
|
2009-12-13 00:54:01 +03:00
|
|
|
}
|
|
|
|
}
|
2011-10-01 15:35:36 +04:00
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2011-02-17 00:28:01 +03:00
|
|
|
static CURLcode smtp_state_upgrade_tls(struct connectdata *conn)
|
|
|
|
{
|
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
|
|
|
CURLcode result;
|
|
|
|
|
|
|
|
result = Curl_ssl_connect_nonblocking(conn, FIRSTSOCKET, &smtpc->ssldone);
|
|
|
|
|
|
|
|
if(smtpc->ssldone) {
|
|
|
|
smtp_to_smtps(conn);
|
|
|
|
result = smtp_state_ehlo(conn);
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
/* for EHLO responses */
|
|
|
|
static CURLcode smtp_state_ehlo_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
2010-02-22 15:41:02 +03:00
|
|
|
if(smtpcode/100 != 2) {
|
2011-11-03 12:54:12 +04:00
|
|
|
if((data->set.use_ssl <= CURLUSESSL_TRY || conn->ssl[FIRSTSOCKET].use) &&
|
2010-04-19 13:16:30 +04:00
|
|
|
!conn->bits.user_passwd)
|
2010-02-22 15:41:02 +03:00
|
|
|
result = smtp_state_helo(conn);
|
|
|
|
else {
|
2012-02-24 18:36:53 +04:00
|
|
|
failf(data, "Remote access denied: %d", smtpcode);
|
|
|
|
result = CURLE_REMOTE_ACCESS_DENIED;
|
2010-02-22 15:41:02 +03:00
|
|
|
}
|
2010-04-19 13:16:30 +04:00
|
|
|
}
|
2011-11-03 12:54:12 +04:00
|
|
|
else if(data->set.use_ssl && !conn->ssl[FIRSTSOCKET].use) {
|
2010-02-22 15:41:02 +03:00
|
|
|
/* We don't have a SSL/TLS connection yet, but SSL is requested. Switch
|
|
|
|
to TLS connection now */
|
2010-04-19 13:16:30 +04:00
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "STARTTLS");
|
2010-02-22 15:41:02 +03:00
|
|
|
state(conn, SMTP_STARTTLS);
|
|
|
|
}
|
2010-04-19 13:16:30 +04:00
|
|
|
else
|
|
|
|
result = smtp_authenticate(conn);
|
|
|
|
|
2010-02-22 15:41:02 +03:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* for HELO responses */
|
|
|
|
static CURLcode smtp_state_helo_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
if(smtpcode/100 != 2) {
|
2012-02-24 18:36:53 +04:00
|
|
|
failf(data, "Remote access denied: %d", smtpcode);
|
|
|
|
result = CURLE_REMOTE_ACCESS_DENIED;
|
2010-04-19 13:16:30 +04:00
|
|
|
}
|
2010-02-22 15:41:02 +03:00
|
|
|
else {
|
|
|
|
/* end the connect phase */
|
|
|
|
state(conn, SMTP_STOP);
|
2009-12-13 00:54:01 +03:00
|
|
|
}
|
2011-10-01 15:35:36 +04:00
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2010-04-19 13:16:30 +04:00
|
|
|
/* for AUTH PLAIN (without initial response) responses */
|
|
|
|
static CURLcode smtp_state_authplain_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
2011-10-01 15:35:36 +04:00
|
|
|
size_t len = 0;
|
|
|
|
char *plainauth = NULL;
|
2010-04-19 13:16:30 +04:00
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode != 334) {
|
|
|
|
failf(data, "Access denied: %d", smtpcode);
|
|
|
|
result = CURLE_LOGIN_DENIED;
|
|
|
|
}
|
|
|
|
else {
|
2011-10-01 15:35:36 +04:00
|
|
|
result = smtp_auth_plain_data(conn, &plainauth, &len);
|
2010-04-19 13:16:30 +04:00
|
|
|
|
2011-08-24 10:07:36 +04:00
|
|
|
if(!result) {
|
|
|
|
if(plainauth) {
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", plainauth);
|
2010-04-19 13:16:30 +04:00
|
|
|
|
2011-08-24 10:07:36 +04:00
|
|
|
if(!result)
|
|
|
|
state(conn, SMTP_AUTH);
|
|
|
|
}
|
|
|
|
Curl_safefree(plainauth);
|
2010-04-19 13:16:30 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* for AUTH LOGIN (without initial response) responses */
|
|
|
|
static CURLcode smtp_state_authlogin_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
2011-10-01 15:35:36 +04:00
|
|
|
size_t len = 0;
|
|
|
|
char *authuser = NULL;
|
2010-04-19 13:16:30 +04:00
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode != 334) {
|
|
|
|
failf(data, "Access denied: %d", smtpcode);
|
|
|
|
result = CURLE_LOGIN_DENIED;
|
|
|
|
}
|
|
|
|
else {
|
2011-10-01 15:35:36 +04:00
|
|
|
result = smtp_auth_login_user(conn, &authuser, &len);
|
2010-04-19 13:16:30 +04:00
|
|
|
|
2011-08-24 10:07:36 +04:00
|
|
|
if(!result) {
|
|
|
|
if(authuser) {
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", authuser);
|
2010-04-19 13:16:30 +04:00
|
|
|
|
2011-08-24 10:07:36 +04:00
|
|
|
if(!result)
|
|
|
|
state(conn, SMTP_AUTHPASSWD);
|
|
|
|
}
|
|
|
|
Curl_safefree(authuser);
|
2010-04-19 13:16:30 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2012-04-02 00:09:38 +04:00
|
|
|
/* for responses to user entry of AUTH LOGIN */
|
2010-04-19 13:16:30 +04:00
|
|
|
static CURLcode smtp_state_authpasswd_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
2010-05-20 22:15:52 +04:00
|
|
|
size_t plen;
|
2011-10-01 15:35:36 +04:00
|
|
|
size_t len = 0;
|
2011-08-24 10:07:36 +04:00
|
|
|
char *authpasswd = NULL;
|
2010-04-19 13:16:30 +04:00
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode != 334) {
|
|
|
|
failf(data, "Access denied: %d", smtpcode);
|
|
|
|
result = CURLE_LOGIN_DENIED;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
plen = strlen(conn->passwd);
|
|
|
|
|
|
|
|
if(!plen)
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "=");
|
|
|
|
else {
|
2011-10-01 15:35:36 +04:00
|
|
|
result = Curl_base64_encode(data, conn->passwd, plen, &authpasswd, &len);
|
2010-04-19 13:16:30 +04:00
|
|
|
|
2011-08-24 10:07:36 +04:00
|
|
|
if(!result) {
|
|
|
|
if(authpasswd) {
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", authpasswd);
|
2010-04-19 13:16:30 +04:00
|
|
|
|
2011-08-24 10:07:36 +04:00
|
|
|
if(!result)
|
|
|
|
state(conn, SMTP_AUTH);
|
|
|
|
}
|
|
|
|
Curl_safefree(authpasswd);
|
2010-04-19 13:16:30 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifndef CURL_DISABLE_CRYPTO_AUTH
|
|
|
|
|
2012-04-02 00:09:38 +04:00
|
|
|
/* for AUTH CRAM-MD5 responses */
|
2010-04-19 13:16:30 +04:00
|
|
|
static CURLcode smtp_state_authcram_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
2012-02-16 14:43:17 +04:00
|
|
|
char *chlg64 = data->state.buffer;
|
|
|
|
unsigned char *chlg;
|
2010-05-20 22:15:52 +04:00
|
|
|
size_t chlglen;
|
2011-10-01 15:35:36 +04:00
|
|
|
size_t len = 0;
|
|
|
|
char *rplyb64 = NULL;
|
|
|
|
HMAC_context *ctxt;
|
2012-03-31 00:19:38 +04:00
|
|
|
unsigned char digest[MD5_DIGEST_LEN];
|
|
|
|
char reply[MAX_CURL_USER_LENGTH + 2 * MD5_DIGEST_LEN + 1];
|
2010-04-19 13:16:30 +04:00
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode != 334) {
|
|
|
|
failf(data, "Access denied: %d", smtpcode);
|
|
|
|
return CURLE_LOGIN_DENIED;
|
|
|
|
}
|
|
|
|
|
2012-04-02 00:09:38 +04:00
|
|
|
/* Get the challenge */
|
2011-04-20 17:17:42 +04:00
|
|
|
for(chlg64 += 4; *chlg64 == ' ' || *chlg64 == '\t'; chlg64++)
|
2010-04-19 13:16:30 +04:00
|
|
|
;
|
|
|
|
|
|
|
|
chlg = (unsigned char *) NULL;
|
|
|
|
chlglen = 0;
|
|
|
|
|
|
|
|
if(*chlg64 != '=') {
|
2011-10-01 15:35:36 +04:00
|
|
|
for(len = strlen(chlg64); len--;)
|
|
|
|
if(chlg64[len] != '\r' && chlg64[len] != '\n' && chlg64[len] != ' ' &&
|
|
|
|
chlg64[len] != '\t')
|
2010-04-19 13:16:30 +04:00
|
|
|
break;
|
|
|
|
|
2011-10-01 15:35:36 +04:00
|
|
|
if(++len) {
|
|
|
|
chlg64[len] = '\0';
|
2010-04-19 13:16:30 +04:00
|
|
|
|
2011-08-24 10:07:36 +04:00
|
|
|
result = Curl_base64_decode(chlg64, &chlg, &chlglen);
|
|
|
|
if(result)
|
|
|
|
return result;
|
2010-04-19 13:16:30 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-04-02 00:09:38 +04:00
|
|
|
/* Compute digest */
|
2010-04-19 13:16:30 +04:00
|
|
|
ctxt = Curl_HMAC_init(Curl_HMAC_MD5,
|
2010-05-20 22:15:52 +04:00
|
|
|
(const unsigned char *) conn->passwd,
|
2012-03-20 21:28:24 +04:00
|
|
|
curlx_uztoui(strlen(conn->passwd)));
|
2010-04-19 13:16:30 +04:00
|
|
|
|
|
|
|
if(!ctxt) {
|
2011-08-24 10:07:36 +04:00
|
|
|
Curl_safefree(chlg);
|
2010-04-19 13:16:30 +04:00
|
|
|
return CURLE_OUT_OF_MEMORY;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(chlglen > 0)
|
2012-03-20 21:28:24 +04:00
|
|
|
Curl_HMAC_update(ctxt, chlg, curlx_uztoui(chlglen));
|
2010-04-19 13:16:30 +04:00
|
|
|
|
2011-08-24 10:07:36 +04:00
|
|
|
Curl_safefree(chlg);
|
2010-04-19 13:16:30 +04:00
|
|
|
|
|
|
|
Curl_HMAC_final(ctxt, digest);
|
|
|
|
|
2012-04-02 00:09:38 +04:00
|
|
|
/* Prepare the reply */
|
|
|
|
snprintf(reply, sizeof(reply),
|
2010-04-19 13:16:30 +04:00
|
|
|
"%s %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
|
2011-04-20 17:17:42 +04:00
|
|
|
conn->user, digest[0], digest[1], digest[2], digest[3], digest[4],
|
|
|
|
digest[5],
|
|
|
|
digest[6], digest[7], digest[8], digest[9], digest[10], digest[11],
|
|
|
|
digest[12], digest[13], digest[14], digest[15]);
|
2010-04-19 13:16:30 +04:00
|
|
|
|
2012-04-02 00:09:38 +04:00
|
|
|
/* Encode it to base64 and send it */
|
2011-10-01 15:35:36 +04:00
|
|
|
result = Curl_base64_encode(data, reply, 0, &rplyb64, &len);
|
2010-04-19 13:16:30 +04:00
|
|
|
|
2011-08-24 10:07:36 +04:00
|
|
|
if(!result) {
|
|
|
|
if(rplyb64) {
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", rplyb64);
|
2010-04-19 13:16:30 +04:00
|
|
|
|
2011-08-24 10:07:36 +04:00
|
|
|
if(!result)
|
|
|
|
state(conn, SMTP_AUTH);
|
|
|
|
}
|
|
|
|
Curl_safefree(rplyb64);
|
2010-04-19 13:16:30 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2012-03-31 00:50:56 +04:00
|
|
|
/* for AUTH DIGEST-MD5 challenge responses */
|
|
|
|
static CURLcode smtp_state_authdigest_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
|
|
|
{
|
|
|
|
static const char table16[] = "0123456789abcdef";
|
|
|
|
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
char *chlg64 = data->state.buffer;
|
|
|
|
unsigned char *chlg;
|
|
|
|
size_t chlglen;
|
|
|
|
size_t len = 0;
|
|
|
|
size_t i;
|
|
|
|
char *rplyb64 = NULL;
|
|
|
|
MD5_context *ctxt;
|
|
|
|
unsigned char digest[MD5_DIGEST_LEN];
|
|
|
|
char HA1_hex[2 * MD5_DIGEST_LEN + 1];
|
|
|
|
char HA2_hex[2 * MD5_DIGEST_LEN + 1];
|
|
|
|
char resp_hash_hex[2 * MD5_DIGEST_LEN + 1];
|
|
|
|
|
|
|
|
char nonce[64];
|
|
|
|
char realm[128];
|
|
|
|
char alg[64];
|
|
|
|
char nonceCount[] = "00000001";
|
|
|
|
char cnonce[] = "12345678"; /* will be changed */
|
|
|
|
char method[] = "AUTHENTICATE";
|
|
|
|
char qop[] = "auth";
|
|
|
|
char uri[128] = "smtp/";
|
|
|
|
char response[512];
|
|
|
|
|
|
|
|
(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++)
|
|
|
|
;
|
|
|
|
|
|
|
|
chlg = (unsigned char *) NULL;
|
|
|
|
chlglen = 0;
|
|
|
|
|
|
|
|
result = Curl_base64_decode(chlg64, &chlg, &chlglen);
|
|
|
|
|
|
|
|
if(result)
|
|
|
|
return result;
|
|
|
|
|
|
|
|
/* Retrieve nonce string from the challenge */
|
|
|
|
if(!smtp_digest_get_key_value(chlg, "nonce=\"", nonce,
|
2012-04-02 00:09:38 +04:00
|
|
|
sizeof(nonce), '\"')) {
|
2012-03-31 00:50:56 +04:00
|
|
|
Curl_safefree(chlg);
|
|
|
|
return CURLE_LOGIN_DENIED;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Retrieve realm string from the challenge */
|
|
|
|
if(!smtp_digest_get_key_value(chlg, "realm=\"", realm,
|
2012-04-02 00:09:38 +04:00
|
|
|
sizeof(realm), '\"')) {
|
2012-03-31 00:50:56 +04:00
|
|
|
/* Challenge does not have a realm, set empty string [RFC2831] page 6 */
|
|
|
|
strcpy(realm, "");
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Retrieve algorithm string from the challenge */
|
2012-04-02 00:09:38 +04:00
|
|
|
if(!smtp_digest_get_key_value(chlg, "algorithm=", alg, sizeof(alg), ',')) {
|
2012-03-31 00:50:56 +04:00
|
|
|
Curl_safefree(chlg);
|
|
|
|
return CURLE_LOGIN_DENIED;
|
|
|
|
}
|
|
|
|
|
|
|
|
Curl_safefree(chlg);
|
|
|
|
|
|
|
|
/* We do not support other algorithms */
|
|
|
|
if(strcmp(alg, "md5-sess") != 0)
|
|
|
|
return CURLE_LOGIN_DENIED;
|
|
|
|
|
|
|
|
/* Generate 64 bits of random data */
|
|
|
|
for(i = 0; i < 8; i++)
|
|
|
|
cnonce[i] = table16[Curl_rand()%16];
|
|
|
|
|
|
|
|
/* So far so good, now calculate A1 and H(A1) according to RFC 2831 */
|
|
|
|
ctxt = Curl_MD5_init(Curl_DIGEST_MD5);
|
2012-05-03 00:34:45 +04:00
|
|
|
if(!ctxt)
|
|
|
|
return CURLE_OUT_OF_MEMORY;
|
|
|
|
|
2012-03-31 00:50:56 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) conn->user,
|
2012-04-04 19:23:49 +04:00
|
|
|
curlx_uztoui(strlen(conn->user)));
|
2012-03-31 00:50:56 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) ":", 1);
|
2012-04-04 19:23:49 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) realm,
|
|
|
|
curlx_uztoui(strlen(realm)));
|
2012-03-31 00:50:56 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) ":", 1);
|
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) conn->passwd,
|
2012-04-04 19:23:49 +04:00
|
|
|
curlx_uztoui(strlen(conn->passwd)));
|
2012-03-31 00:50:56 +04:00
|
|
|
Curl_MD5_final(ctxt, digest);
|
|
|
|
|
|
|
|
ctxt = Curl_MD5_init(Curl_DIGEST_MD5);
|
2012-05-03 00:34:45 +04:00
|
|
|
if(!ctxt)
|
|
|
|
return CURLE_OUT_OF_MEMORY;
|
|
|
|
|
2012-03-31 00:50:56 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) digest, MD5_DIGEST_LEN);
|
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) ":", 1);
|
2012-04-04 19:23:49 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) nonce,
|
|
|
|
curlx_uztoui(strlen(nonce)));
|
2012-03-31 00:50:56 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) ":", 1);
|
2012-04-04 19:23:49 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) cnonce,
|
|
|
|
curlx_uztoui(strlen(cnonce)));
|
2012-03-31 00:50:56 +04:00
|
|
|
Curl_MD5_final(ctxt, digest);
|
|
|
|
|
|
|
|
/* Convert calculated 16 octet hex into 32 bytes string */
|
|
|
|
for(i = 0; i < MD5_DIGEST_LEN; i++)
|
|
|
|
snprintf(&HA1_hex[2 * i], 3, "%02x", digest[i]);
|
|
|
|
|
|
|
|
/* Orepare URL string, append realm to the protocol */
|
|
|
|
strcat(uri, realm);
|
|
|
|
|
|
|
|
/* Calculate H(A2) */
|
|
|
|
ctxt = Curl_MD5_init(Curl_DIGEST_MD5);
|
2012-05-03 00:34:45 +04:00
|
|
|
if(!ctxt)
|
|
|
|
return CURLE_OUT_OF_MEMORY;
|
|
|
|
|
2012-04-04 19:23:49 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) method,
|
|
|
|
curlx_uztoui(strlen(method)));
|
2012-03-31 00:50:56 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) ":", 1);
|
2012-04-04 19:23:49 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) uri,
|
|
|
|
curlx_uztoui(strlen(uri)));
|
2012-03-31 00:50:56 +04:00
|
|
|
Curl_MD5_final(ctxt, digest);
|
|
|
|
|
|
|
|
for(i = 0; i < MD5_DIGEST_LEN; i++)
|
|
|
|
snprintf(&HA2_hex[2 * i], 3, "%02x", digest[i]);
|
|
|
|
|
|
|
|
/* Now calculate the response hash */
|
|
|
|
ctxt = Curl_MD5_init(Curl_DIGEST_MD5);
|
2012-05-03 00:34:45 +04:00
|
|
|
if(!ctxt)
|
|
|
|
return CURLE_OUT_OF_MEMORY;
|
|
|
|
|
2012-03-31 00:50:56 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) HA1_hex, 2 * MD5_DIGEST_LEN);
|
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) ":", 1);
|
2012-04-04 19:23:49 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) nonce,
|
|
|
|
curlx_uztoui(strlen(nonce)));
|
2012-03-31 00:50:56 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) ":", 1);
|
|
|
|
|
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) nonceCount,
|
2012-04-04 19:23:49 +04:00
|
|
|
curlx_uztoui(strlen(nonceCount)));
|
2012-03-31 00:50:56 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) ":", 1);
|
2012-04-04 19:23:49 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) cnonce,
|
|
|
|
curlx_uztoui(strlen(cnonce)));
|
2012-03-31 00:50:56 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) ":", 1);
|
2012-04-04 19:23:49 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) qop,
|
|
|
|
curlx_uztoui(strlen(qop)));
|
2012-03-31 00:50:56 +04:00
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) ":", 1);
|
|
|
|
|
|
|
|
Curl_MD5_update(ctxt, (const unsigned char *) HA2_hex, 2 * MD5_DIGEST_LEN);
|
|
|
|
Curl_MD5_final(ctxt, digest);
|
|
|
|
|
|
|
|
for(i = 0; i < MD5_DIGEST_LEN; i++)
|
|
|
|
snprintf(&resp_hash_hex[2 * i], 3, "%02x", digest[i]);
|
|
|
|
|
|
|
|
strcpy(response, "username=\"");
|
|
|
|
strcat(response, conn->user);
|
|
|
|
strcat(response, "\",realm=\"");
|
|
|
|
strcat(response, realm);
|
|
|
|
strcat(response, "\",nonce=\"");
|
|
|
|
strcat(response, nonce);
|
|
|
|
strcat(response, "\",cnonce=\"");
|
|
|
|
strcat(response, cnonce);
|
|
|
|
strcat(response, "\",nc=");
|
|
|
|
strcat(response, nonceCount);
|
|
|
|
strcat(response, ",digest-uri=\"");
|
|
|
|
strcat(response, uri);
|
|
|
|
strcat(response, "\",response=");
|
|
|
|
strcat(response, resp_hash_hex);
|
|
|
|
|
|
|
|
/* Encode it to base64 and send it */
|
|
|
|
result = Curl_base64_encode(data, response, 0, &rplyb64, &len);
|
|
|
|
|
|
|
|
if(!result) {
|
|
|
|
if(rplyb64) {
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", rplyb64);
|
|
|
|
|
|
|
|
if(!result)
|
|
|
|
state(conn, SMTP_AUTHDIGESTMD5_RESP);
|
|
|
|
}
|
2012-04-02 00:09:38 +04:00
|
|
|
|
2012-03-31 00:50:56 +04:00
|
|
|
Curl_safefree(rplyb64);
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* For AUTH DIGEST-MD5 challenge-response responses */
|
|
|
|
static CURLcode smtp_state_authdigest_resp_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 != 334) {
|
|
|
|
failf(data, "Authentication failed: %d", smtpcode);
|
|
|
|
result = CURLE_LOGIN_DENIED;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "");
|
|
|
|
|
|
|
|
if(!result)
|
|
|
|
state(conn, SMTP_AUTH);
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2010-04-19 13:16:30 +04:00
|
|
|
#endif
|
|
|
|
|
2011-10-01 17:46:14 +04:00
|
|
|
#ifdef USE_NTLM
|
2012-04-02 00:09:38 +04:00
|
|
|
/* for the AUTH NTLM (without initial response) response */
|
2011-10-01 17:46:14 +04:00
|
|
|
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 {
|
|
|
|
result = smtp_auth_ntlm_type1_message(conn, &type1msg, &len);
|
|
|
|
|
|
|
|
if(!result) {
|
|
|
|
if(type1msg) {
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", type1msg);
|
|
|
|
|
|
|
|
if(!result)
|
|
|
|
state(conn, SMTP_AUTHNTLM_TYPE2MSG);
|
|
|
|
}
|
2012-04-02 00:09:38 +04:00
|
|
|
|
2011-10-01 17:46:14 +04:00
|
|
|
Curl_safefree(type1msg);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2012-04-02 00:09:38 +04:00
|
|
|
/* for the NTLM type-2 response (sent in reponse to our type-1 message) */
|
2011-10-01 17:46:14 +04:00
|
|
|
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 {
|
2011-10-04 01:04:32 +04:00
|
|
|
result = Curl_ntlm_decode_type2_message(data, data->state.buffer + 4,
|
|
|
|
&conn->ntlm);
|
|
|
|
if(!result) {
|
|
|
|
result = Curl_ntlm_create_type3_message(conn->data, conn->user,
|
|
|
|
conn->passwd, &conn->ntlm,
|
|
|
|
&type3msg, &len);
|
2011-10-01 17:46:14 +04:00
|
|
|
if(!result) {
|
|
|
|
if(type3msg) {
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", type3msg);
|
|
|
|
|
|
|
|
if(!result)
|
|
|
|
state(conn, SMTP_AUTH);
|
|
|
|
}
|
2012-04-02 00:09:38 +04:00
|
|
|
|
2011-10-01 17:46:14 +04:00
|
|
|
Curl_safefree(type3msg);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2012-04-02 00:09:38 +04:00
|
|
|
/* for the final responses to the AUTH sequence */
|
2010-04-19 13:16:30 +04:00
|
|
|
static CURLcode smtp_state_auth_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 != 235) {
|
|
|
|
failf(data, "Authentication failed: %d", smtpcode);
|
|
|
|
result = CURLE_LOGIN_DENIED;
|
|
|
|
}
|
|
|
|
else
|
2012-04-02 00:09:38 +04:00
|
|
|
state(conn, SMTP_STOP); /* End of connect phase */
|
2010-04-19 13:16:30 +04:00
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
/* start the DO phase */
|
|
|
|
static CURLcode smtp_mail(struct connectdata *conn)
|
|
|
|
{
|
2011-09-26 17:07:54 +04:00
|
|
|
char *from = NULL;
|
2011-10-06 01:22:29 +04:00
|
|
|
char *auth = NULL;
|
2011-09-26 17:07:54 +04:00
|
|
|
char *size = NULL;
|
2009-12-13 00:54:01 +03:00
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
|
2011-09-26 17:07:54 +04:00
|
|
|
/* calculate the FROM parameter */
|
2011-09-22 00:24:45 +04:00
|
|
|
if(!data->set.str[STRING_MAIL_FROM])
|
|
|
|
/* null reverse-path, RFC-2821, sect. 3.7 */
|
2011-09-30 01:45:36 +04:00
|
|
|
from = strdup("<>");
|
2011-09-22 00:24:45 +04:00
|
|
|
else if(data->set.str[STRING_MAIL_FROM][0] == '<')
|
2011-09-26 17:07:54 +04:00
|
|
|
from = aprintf("%s", data->set.str[STRING_MAIL_FROM]);
|
|
|
|
else
|
|
|
|
from = aprintf("<%s>", data->set.str[STRING_MAIL_FROM]);
|
|
|
|
|
2011-09-30 01:45:36 +04:00
|
|
|
if(!from)
|
|
|
|
return CURLE_OUT_OF_MEMORY;
|
|
|
|
|
2011-10-06 01:22:29 +04:00
|
|
|
/* calculate the optional AUTH parameter */
|
|
|
|
if(data->set.str[STRING_MAIL_AUTH] && conn->proto.smtpc.authused) {
|
2012-01-07 17:42:28 +04:00
|
|
|
if(data->set.str[STRING_MAIL_AUTH][0] != '\0')
|
2011-10-06 01:22:29 +04:00
|
|
|
auth = aprintf("%s", data->set.str[STRING_MAIL_AUTH]);
|
|
|
|
else
|
2012-01-07 17:42:28 +04:00
|
|
|
/* empty AUTH, RFC-2554, sect. 5 */
|
|
|
|
auth = strdup("<>");
|
2011-10-06 01:22:29 +04:00
|
|
|
|
|
|
|
if(!auth) {
|
|
|
|
Curl_safefree(from);
|
|
|
|
|
|
|
|
return CURLE_OUT_OF_MEMORY;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2011-09-26 17:07:54 +04:00
|
|
|
/* calculate the optional SIZE parameter */
|
2011-09-30 01:45:36 +04:00
|
|
|
if(conn->data->set.infilesize > 0) {
|
2011-09-26 17:07:54 +04:00
|
|
|
size = aprintf("%" FORMAT_OFF_T, data->set.infilesize);
|
|
|
|
|
2011-09-30 13:11:56 +04:00
|
|
|
if(!size) {
|
|
|
|
Curl_safefree(from);
|
2011-10-06 01:22:29 +04:00
|
|
|
Curl_safefree(auth);
|
2011-09-30 13:11:56 +04:00
|
|
|
|
2011-09-30 01:45:36 +04:00
|
|
|
return CURLE_OUT_OF_MEMORY;
|
2011-09-30 13:11:56 +04:00
|
|
|
}
|
2011-09-30 01:45:36 +04:00
|
|
|
}
|
|
|
|
|
2011-09-26 17:07:54 +04:00
|
|
|
/* send MAIL FROM */
|
2011-10-06 01:22:29 +04:00
|
|
|
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);
|
2010-12-22 16:41:53 +03:00
|
|
|
else
|
2011-10-06 01:22:29 +04:00
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp,
|
|
|
|
"MAIL FROM:%s SIZE=%s", from, size);
|
2011-09-30 01:45:36 +04:00
|
|
|
|
|
|
|
Curl_safefree(from);
|
2011-10-06 01:22:29 +04:00
|
|
|
Curl_safefree(auth);
|
|
|
|
Curl_safefree(size);
|
2011-09-26 17:07:54 +04:00
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
if(result)
|
|
|
|
return result;
|
|
|
|
|
|
|
|
state(conn, SMTP_MAIL);
|
2011-09-26 17:07:54 +04:00
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2010-02-21 01:29:59 +03:00
|
|
|
static CURLcode smtp_rcpt_to(struct connectdata *conn)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
|
|
|
|
|
|
|
/* send RCPT TO */
|
|
|
|
if(smtpc->rcpt) {
|
|
|
|
if(smtpc->rcpt->data[0] == '<')
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "RCPT TO:%s",
|
|
|
|
smtpc->rcpt->data);
|
|
|
|
else
|
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "RCPT TO:<%s>",
|
|
|
|
smtpc->rcpt->data);
|
|
|
|
if(!result)
|
|
|
|
state(conn, SMTP_RCPT);
|
|
|
|
}
|
2011-10-01 15:35:36 +04:00
|
|
|
|
2010-02-21 01:29:59 +03:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
/* for MAIL responses */
|
|
|
|
static CURLcode smtp_state_mail_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
2012-04-02 00:09:38 +04:00
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode/100 != 2) {
|
|
|
|
failf(data, "Access denied: %d", smtpcode);
|
|
|
|
result = CURLE_LOGIN_DENIED;
|
|
|
|
state(conn, SMTP_STOP);
|
|
|
|
}
|
|
|
|
else {
|
2010-02-13 01:23:46 +03:00
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
|
|
|
smtpc->rcpt = data->set.mail_rcpt;
|
2010-01-01 00:52:01 +03:00
|
|
|
|
2010-02-21 01:29:59 +03:00
|
|
|
result = smtp_rcpt_to(conn);
|
2009-12-13 00:54:01 +03:00
|
|
|
}
|
2010-02-21 01:29:59 +03:00
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* for RCPT responses */
|
|
|
|
static CURLcode smtp_state_rcpt_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
struct SessionHandle *data = conn->data;
|
2012-04-02 00:09:38 +04:00
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode/100 != 2) {
|
|
|
|
failf(data, "Access denied: %d", smtpcode);
|
|
|
|
result = CURLE_LOGIN_DENIED;
|
|
|
|
state(conn, SMTP_STOP);
|
|
|
|
}
|
|
|
|
else {
|
2010-02-13 01:23:46 +03:00
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
|
|
|
|
|
|
|
if(smtpc->rcpt) {
|
2010-02-21 01:29:59 +03:00
|
|
|
smtpc->rcpt = smtpc->rcpt->next;
|
|
|
|
result = smtp_rcpt_to(conn);
|
2010-02-13 01:23:46 +03:00
|
|
|
|
2010-02-21 01:29:59 +03:00
|
|
|
/* if we failed or still is in RCPT sending, return */
|
|
|
|
if(result || smtpc->rcpt)
|
|
|
|
return result;
|
2010-02-13 01:23:46 +03:00
|
|
|
}
|
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
/* send DATA */
|
2010-04-19 13:16:30 +04:00
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "DATA");
|
2012-02-20 16:18:22 +04:00
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
if(result)
|
|
|
|
return result;
|
|
|
|
|
|
|
|
state(conn, SMTP_DATA);
|
|
|
|
}
|
2011-10-01 15:35:36 +04:00
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* for the DATA response */
|
|
|
|
static CURLcode smtp_state_data_resp(struct connectdata *conn,
|
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
|
|
|
{
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
struct FTP *smtp = data->state.proto.smtp;
|
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
2009-12-26 01:50:11 +03:00
|
|
|
if(smtpcode != 354) {
|
2009-12-13 00:54:01 +03:00
|
|
|
state(conn, SMTP_STOP);
|
|
|
|
return CURLE_RECV_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* SMTP upload */
|
2010-04-17 01:43:04 +04:00
|
|
|
Curl_setup_transfer(conn, -1, -1, FALSE, NULL, /* no download */
|
|
|
|
FIRSTSOCKET, smtp->bytecountp);
|
2009-12-13 00:54:01 +03:00
|
|
|
|
|
|
|
state(conn, SMTP_STOP);
|
2012-03-24 15:55:34 +04:00
|
|
|
|
2010-04-17 01:43:04 +04:00
|
|
|
return CURLE_OK;
|
2009-12-13 00:54:01 +03:00
|
|
|
}
|
|
|
|
|
2010-02-21 00:56:48 +03:00
|
|
|
/* for the POSTDATA response, which is received after the entire DATA
|
|
|
|
part has been sent off to the server */
|
|
|
|
static CURLcode smtp_state_postdata_resp(struct connectdata *conn,
|
2012-03-24 15:55:34 +04:00
|
|
|
int smtpcode,
|
|
|
|
smtpstate instate)
|
2010-02-21 00:56:48 +03:00
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
|
|
|
|
(void)instate; /* no use for this yet */
|
|
|
|
|
|
|
|
if(smtpcode != 250)
|
|
|
|
result = CURLE_RECV_ERROR;
|
|
|
|
|
|
|
|
state(conn, SMTP_STOP);
|
2011-10-01 15:35:36 +04:00
|
|
|
|
2010-02-21 00:56:48 +03:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
static CURLcode smtp_statemach_act(struct connectdata *conn)
|
|
|
|
{
|
|
|
|
CURLcode result;
|
|
|
|
curl_socket_t sock = conn->sock[FIRSTSOCKET];
|
2011-08-24 10:55:25 +04:00
|
|
|
struct SessionHandle *data = conn->data;
|
2009-12-13 00:54:01 +03:00
|
|
|
int smtpcode;
|
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
|
|
|
struct pingpong *pp = &smtpc->pp;
|
|
|
|
size_t nread = 0;
|
|
|
|
|
2011-02-17 00:28:01 +03:00
|
|
|
if(smtpc->state == SMTP_UPGRADETLS)
|
|
|
|
return smtp_state_upgrade_tls(conn);
|
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
if(pp->sendleft)
|
|
|
|
/* we have a piece of a command still left to send */
|
|
|
|
return Curl_pp_flushsend(pp);
|
|
|
|
|
|
|
|
/* we read a piece of response */
|
|
|
|
result = Curl_pp_readresp(sock, pp, &smtpcode, &nread);
|
|
|
|
if(result)
|
|
|
|
return result;
|
|
|
|
|
2012-02-22 14:44:34 +04:00
|
|
|
if(smtpc->state != SMTP_QUIT)
|
|
|
|
/* store the latest code for later retrieval */
|
|
|
|
data->info.httpcode = smtpcode;
|
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
if(smtpcode) {
|
|
|
|
/* we have now received a full SMTP server response */
|
|
|
|
switch(smtpc->state) {
|
|
|
|
case SMTP_SERVERGREET:
|
2012-03-24 15:55:34 +04:00
|
|
|
result = smtp_state_servergreet_resp(conn, smtpcode, smtpc->state);
|
2009-12-13 00:54:01 +03:00
|
|
|
break;
|
|
|
|
|
|
|
|
case SMTP_EHLO:
|
|
|
|
result = smtp_state_ehlo_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
2010-02-22 15:41:02 +03:00
|
|
|
case SMTP_HELO:
|
|
|
|
result = smtp_state_helo_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
2010-04-19 13:16:30 +04:00
|
|
|
case SMTP_STARTTLS:
|
|
|
|
result = smtp_state_starttls_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case SMTP_AUTHPLAIN:
|
|
|
|
result = smtp_state_authplain_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case SMTP_AUTHLOGIN:
|
|
|
|
result = smtp_state_authlogin_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case SMTP_AUTHPASSWD:
|
|
|
|
result = smtp_state_authpasswd_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
|
|
|
#ifndef CURL_DISABLE_CRYPTO_AUTH
|
2012-02-16 14:43:17 +04:00
|
|
|
case SMTP_AUTHCRAMMD5:
|
2010-04-19 13:16:30 +04:00
|
|
|
result = smtp_state_authcram_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
2012-03-31 00:50:56 +04:00
|
|
|
|
|
|
|
case SMTP_AUTHDIGESTMD5:
|
|
|
|
result = smtp_state_authdigest_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case SMTP_AUTHDIGESTMD5_RESP:
|
|
|
|
result = smtp_state_authdigest_resp_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
2010-04-19 13:16:30 +04:00
|
|
|
#endif
|
|
|
|
|
2011-10-01 17:46:14 +04:00
|
|
|
#ifdef USE_NTLM
|
|
|
|
case SMTP_AUTHNTLM:
|
|
|
|
result = smtp_state_auth_ntlm_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
2011-10-04 01:04:32 +04:00
|
|
|
case SMTP_AUTHNTLM_TYPE2MSG:
|
|
|
|
result = smtp_state_auth_ntlm_type2msg_resp(conn, smtpcode,
|
|
|
|
smtpc->state);
|
2011-10-01 17:46:14 +04:00
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
|
2010-04-19 13:16:30 +04:00
|
|
|
case SMTP_AUTH:
|
|
|
|
result = smtp_state_auth_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
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;
|
|
|
|
|
2010-02-21 00:56:48 +03:00
|
|
|
case SMTP_POSTDATA:
|
|
|
|
result = smtp_state_postdata_resp(conn, smtpcode, smtpc->state);
|
|
|
|
break;
|
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
case SMTP_QUIT:
|
|
|
|
/* fallthrough, just stop! */
|
|
|
|
default:
|
|
|
|
/* internal error */
|
|
|
|
state(conn, SMTP_STOP);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2011-10-01 15:35:36 +04:00
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* called repeatedly until done from multi.c */
|
2012-04-02 00:09:38 +04:00
|
|
|
static CURLcode smtp_multi_statemach(struct connectdata *conn, bool *done)
|
2009-12-13 00:54:01 +03:00
|
|
|
{
|
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
2011-02-17 00:13:10 +03:00
|
|
|
CURLcode result;
|
|
|
|
|
2011-05-05 17:49:43 +04:00
|
|
|
if((conn->handler->flags & PROTOPT_SSL) && !smtpc->ssldone)
|
2011-02-17 00:13:10 +03:00
|
|
|
result = Curl_ssl_connect_nonblocking(conn, FIRSTSOCKET, &smtpc->ssldone);
|
2011-05-05 17:49:43 +04:00
|
|
|
else
|
2011-02-17 00:13:10 +03:00
|
|
|
result = Curl_pp_multi_statemach(&smtpc->pp);
|
2009-12-13 00:54:01 +03:00
|
|
|
|
2011-09-05 22:46:09 +04:00
|
|
|
*done = (smtpc->state == SMTP_STOP) ? TRUE : FALSE;
|
2009-12-13 00:54:01 +03:00
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
static CURLcode smtp_easy_statemach(struct connectdata *conn)
|
|
|
|
{
|
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
|
|
|
struct pingpong *pp = &smtpc->pp;
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
|
|
|
|
while(smtpc->state != SMTP_STOP) {
|
|
|
|
result = Curl_pp_easy_statemach(pp);
|
|
|
|
if(result)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Allocate and initialize the struct SMTP for the current SessionHandle. If
|
|
|
|
* need be.
|
|
|
|
*/
|
|
|
|
static CURLcode smtp_init(struct connectdata *conn)
|
|
|
|
{
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
struct FTP *smtp = data->state.proto.smtp;
|
|
|
|
if(!smtp) {
|
|
|
|
smtp = data->state.proto.smtp = calloc(sizeof(struct FTP), 1);
|
|
|
|
if(!smtp)
|
|
|
|
return CURLE_OUT_OF_MEMORY;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* get some initial data into the smtp struct */
|
|
|
|
smtp->bytecountp = &data->req.bytecount;
|
|
|
|
|
|
|
|
/* No need to duplicate user+password, the connectdata struct won't change
|
|
|
|
during a session, but we re-init them here since on subsequent inits
|
|
|
|
since the conn struct may have changed or been replaced.
|
|
|
|
*/
|
|
|
|
smtp->user = conn->user;
|
|
|
|
smtp->passwd = conn->passwd;
|
|
|
|
|
|
|
|
return CURLE_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* smtp_connect() should do everything that is to be considered a part of
|
|
|
|
* the connection phase.
|
|
|
|
*
|
2011-08-24 10:55:25 +04:00
|
|
|
* The variable pointed to by 'done' will be TRUE if the protocol-layer
|
|
|
|
* connect phase is done when this function returns, or FALSE if not. When
|
|
|
|
* called as a part of the easy interface, it will always be TRUE.
|
2009-12-13 00:54:01 +03:00
|
|
|
*/
|
2012-04-02 00:09:38 +04:00
|
|
|
static CURLcode smtp_connect(struct connectdata *conn, bool *done)
|
2009-12-13 00:54:01 +03:00
|
|
|
{
|
|
|
|
CURLcode result;
|
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
2011-08-24 10:55:25 +04:00
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
struct pingpong *pp = &smtpc->pp;
|
2009-12-31 01:50:42 +03:00
|
|
|
const char *path = conn->data->state.path;
|
2011-09-26 02:01:09 +04:00
|
|
|
char localhost[HOSTNAME_MAX + 1];
|
2010-02-22 15:41:02 +03:00
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
*done = FALSE; /* default to not done yet */
|
|
|
|
|
|
|
|
/* If there already is a protocol-specific struct allocated for this
|
|
|
|
sessionhandle, deal with it */
|
|
|
|
Curl_reset_reqproto(conn);
|
|
|
|
|
|
|
|
result = smtp_init(conn);
|
|
|
|
if(CURLE_OK != result)
|
|
|
|
return result;
|
|
|
|
|
2011-04-19 17:54:13 +04:00
|
|
|
/* We always support persistent connections on smtp */
|
2009-12-13 00:54:01 +03:00
|
|
|
conn->bits.close = FALSE;
|
|
|
|
|
|
|
|
pp->response_time = RESP_TIMEOUT; /* set default response time-out */
|
|
|
|
pp->statemach_act = smtp_statemach_act;
|
|
|
|
pp->endofresp = smtp_endofresp;
|
|
|
|
pp->conn = conn;
|
|
|
|
|
2011-02-17 00:13:10 +03:00
|
|
|
if((conn->handler->protocol & CURLPROTO_SMTPS) &&
|
|
|
|
data->state.used_interface != Curl_if_multi) {
|
2009-12-13 00:54:01 +03:00
|
|
|
/* SMTPS is simply smtp with SSL for the control channel */
|
|
|
|
/* now, perform the SSL initialization for this socket */
|
|
|
|
result = Curl_ssl_connect(conn, FIRSTSOCKET);
|
|
|
|
if(result)
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2012-04-02 00:09:38 +04:00
|
|
|
/* Initialise the response reader stuff */
|
|
|
|
Curl_pp_init(pp);
|
2009-12-13 00:54:01 +03:00
|
|
|
|
|
|
|
pp->response_time = RESP_TIMEOUT; /* set default response time-out */
|
|
|
|
pp->statemach_act = smtp_statemach_act;
|
|
|
|
pp->endofresp = smtp_endofresp;
|
|
|
|
pp->conn = conn;
|
|
|
|
|
2010-02-22 15:41:02 +03:00
|
|
|
if(!*path) {
|
2011-10-06 01:22:29 +04:00
|
|
|
if(!Curl_gethostname(localhost, sizeof(localhost)))
|
2010-02-22 15:41:02 +03:00
|
|
|
path = localhost;
|
|
|
|
else
|
2010-07-30 02:47:49 +04:00
|
|
|
path = "localhost";
|
2010-02-22 15:41:02 +03:00
|
|
|
}
|
2009-12-31 01:50:42 +03:00
|
|
|
|
2012-02-16 14:43:17 +04:00
|
|
|
/* Url decode the path and use it as the domain in our EHLO */
|
2011-12-23 16:24:16 +04:00
|
|
|
result = Curl_urldecode(conn->data, path, 0, &smtpc->domain, NULL, TRUE);
|
|
|
|
if(result)
|
|
|
|
return result;
|
2009-12-31 01:50:42 +03:00
|
|
|
|
2012-02-16 14:43:17 +04:00
|
|
|
/* Set the state as we are waiting the server greeting */
|
2009-12-13 00:54:01 +03:00
|
|
|
state(conn, SMTP_SERVERGREET);
|
|
|
|
|
|
|
|
if(data->state.used_interface == Curl_if_multi)
|
|
|
|
result = smtp_multi_statemach(conn, done);
|
|
|
|
else {
|
|
|
|
result = smtp_easy_statemach(conn);
|
|
|
|
if(!result)
|
|
|
|
*done = TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
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)
|
|
|
|
{
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
struct FTP *smtp = data->state.proto.smtp;
|
2011-08-24 10:55:25 +04:00
|
|
|
CURLcode result = CURLE_OK;
|
2009-12-31 00:52:27 +03:00
|
|
|
ssize_t bytes_written;
|
2009-12-13 00:54:01 +03:00
|
|
|
(void)premature;
|
|
|
|
|
|
|
|
if(!smtp)
|
|
|
|
/* When the easy handle is removed from the multi while libcurl is still
|
|
|
|
* trying to resolve the host name, it seems that the smtp struct is not
|
|
|
|
* yet initialized, but the removal action calls Curl_done() which calls
|
|
|
|
* this function. So we simply return success if no smtp pointer is set.
|
|
|
|
*/
|
|
|
|
return CURLE_OK;
|
|
|
|
|
|
|
|
if(status) {
|
|
|
|
conn->bits.close = TRUE; /* marked for closure */
|
2012-02-16 14:43:17 +04:00
|
|
|
result = status; /* use the already set error code */
|
2009-12-13 00:54:01 +03:00
|
|
|
}
|
2012-02-14 18:21:21 +04:00
|
|
|
else if(!data->set.connect_only) {
|
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
|
|
|
struct pingpong *pp = &smtpc->pp;
|
|
|
|
|
|
|
|
/* Send the end of block data */
|
2009-12-31 00:52:27 +03:00
|
|
|
result = Curl_write(conn,
|
|
|
|
conn->writesockfd, /* socket to send to */
|
|
|
|
SMTP_EOB, /* buffer pointer */
|
|
|
|
SMTP_EOB_LEN, /* buffer size */
|
|
|
|
&bytes_written); /* actually sent away */
|
2009-12-13 00:54:01 +03:00
|
|
|
|
2012-02-20 16:18:22 +04:00
|
|
|
if(result)
|
|
|
|
return result;
|
|
|
|
|
|
|
|
if(bytes_written != SMTP_EOB_LEN) {
|
|
|
|
/* The whole chunk was not sent so keep it around and adjust the
|
|
|
|
pingpong structure accordingly */
|
|
|
|
pp->sendthis = strdup(SMTP_EOB);
|
|
|
|
pp->sendsize = SMTP_EOB_LEN;
|
|
|
|
pp->sendleft = SMTP_EOB_LEN - bytes_written;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
/* Successfully sent so adjust the response timeout relative to now */
|
|
|
|
pp->response = Curl_tvnow();
|
2010-03-02 16:26:23 +03:00
|
|
|
|
2010-02-21 00:56:48 +03:00
|
|
|
state(conn, SMTP_POSTDATA);
|
2012-02-14 18:21:21 +04:00
|
|
|
|
|
|
|
/* Run the state-machine
|
2010-02-21 00:56:48 +03:00
|
|
|
|
|
|
|
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!
|
|
|
|
*/
|
|
|
|
result = smtp_easy_statemach(conn);
|
|
|
|
}
|
|
|
|
|
2012-02-14 18:21:21 +04:00
|
|
|
/* Clear the transfer mode for the next connection */
|
2009-12-13 00:54:01 +03:00
|
|
|
smtp->transfer = FTPTRANSFER_BODY;
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
*
|
|
|
|
* smtp_perform()
|
|
|
|
*
|
|
|
|
* This is the actual DO function for SMTP. Get a file/directory according to
|
|
|
|
* the options previously setup.
|
|
|
|
*/
|
|
|
|
static
|
|
|
|
CURLcode smtp_perform(struct connectdata *conn,
|
|
|
|
bool *connected, /* connect status after PASV / PORT */
|
|
|
|
bool *dophase_done)
|
|
|
|
{
|
|
|
|
/* this is SMTP and no proxy */
|
2011-08-24 10:55:25 +04:00
|
|
|
CURLcode result = CURLE_OK;
|
2009-12-13 00:54:01 +03:00
|
|
|
|
|
|
|
DEBUGF(infof(conn->data, "DO phase starts\n"));
|
|
|
|
|
|
|
|
if(conn->data->set.opt_no_body) {
|
|
|
|
/* requested no body means no transfer... */
|
|
|
|
struct FTP *smtp = conn->data->state.proto.smtp;
|
|
|
|
smtp->transfer = FTPTRANSFER_INFO;
|
|
|
|
}
|
|
|
|
|
|
|
|
*dophase_done = FALSE; /* not done yet */
|
|
|
|
|
|
|
|
/* start the first command in the DO phase */
|
|
|
|
result = smtp_mail(conn);
|
|
|
|
if(result)
|
|
|
|
return result;
|
|
|
|
|
|
|
|
/* run the state-machine */
|
|
|
|
if(conn->data->state.used_interface == Curl_if_multi)
|
|
|
|
result = smtp_multi_statemach(conn, dophase_done);
|
|
|
|
else {
|
|
|
|
result = smtp_easy_statemach(conn);
|
|
|
|
*dophase_done = TRUE; /* with the easy interface we are done here */
|
|
|
|
}
|
2011-08-20 01:38:45 +04:00
|
|
|
*connected = conn->bits.tcpconnect[FIRSTSOCKET];
|
2009-12-13 00:54:01 +03:00
|
|
|
|
|
|
|
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)
|
|
|
|
{
|
|
|
|
CURLcode retcode = CURLE_OK;
|
|
|
|
|
|
|
|
*done = FALSE; /* default to false */
|
|
|
|
|
|
|
|
/*
|
|
|
|
Since connections can be re-used between SessionHandles, this might be a
|
|
|
|
connection already existing but on a fresh SessionHandle struct so we must
|
|
|
|
make sure we have a good 'struct SMTP' to play with. For new connections,
|
|
|
|
the struct SMTP is allocated and setup in the smtp_connect() function.
|
|
|
|
*/
|
|
|
|
Curl_reset_reqproto(conn);
|
|
|
|
retcode = smtp_init(conn);
|
|
|
|
if(retcode)
|
|
|
|
return retcode;
|
|
|
|
|
|
|
|
retcode = smtp_regular_transfer(conn, done);
|
|
|
|
|
|
|
|
return retcode;
|
|
|
|
}
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
*
|
|
|
|
* smtp_quit()
|
|
|
|
*
|
|
|
|
* This should be called before calling sclose(). We should then wait for the
|
|
|
|
* response from the server before returning. The calling code should then try
|
|
|
|
* to close the connection.
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
static CURLcode smtp_quit(struct connectdata *conn)
|
|
|
|
{
|
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
|
2010-04-19 13:16:30 +04:00
|
|
|
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "QUIT");
|
2009-12-13 00:54:01 +03:00
|
|
|
if(result)
|
|
|
|
return result;
|
2012-02-22 14:44:34 +04:00
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
state(conn, SMTP_QUIT);
|
|
|
|
|
|
|
|
result = smtp_easy_statemach(conn);
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
*
|
|
|
|
* smtp_disconnect()
|
|
|
|
*
|
|
|
|
* Disconnect from an SMTP server. Cleanup protocol-specific per-connection
|
|
|
|
* resources. BLOCKING.
|
|
|
|
*/
|
2011-08-24 10:55:25 +04:00
|
|
|
static CURLcode smtp_disconnect(struct connectdata *conn,
|
|
|
|
bool dead_connection)
|
2009-12-13 00:54:01 +03:00
|
|
|
{
|
2011-08-24 10:55:25 +04:00
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
2009-12-13 00:54:01 +03:00
|
|
|
|
|
|
|
/* We cannot send quit unconditionally. If this connection is stale or
|
|
|
|
bad in any way, sending quit and waiting around here will make the
|
|
|
|
disconnect wait in vain and cause more problems than we need to.
|
|
|
|
*/
|
|
|
|
|
|
|
|
/* The SMTP session may or may not have been allocated/setup at this
|
|
|
|
point! */
|
2010-11-19 15:43:20 +03:00
|
|
|
if(!dead_connection && smtpc->pp.conn)
|
2010-02-25 11:07:06 +03:00
|
|
|
(void)smtp_quit(conn); /* ignore errors on the LOGOUT */
|
2009-12-13 00:54:01 +03:00
|
|
|
|
|
|
|
Curl_pp_disconnect(&smtpc->pp);
|
|
|
|
|
2011-10-01 17:46:14 +04:00
|
|
|
#ifdef USE_NTLM
|
|
|
|
/* Cleanup the ntlm structure */
|
2012-05-26 00:58:17 +04:00
|
|
|
if(smtpc->authused == SASL_AUTH_NTLM) {
|
2011-10-01 17:46:14 +04:00
|
|
|
Curl_ntlm_sspi_cleanup(&conn->ntlm);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2010-05-19 01:44:19 +04:00
|
|
|
/* This won't already be freed in some error cases */
|
|
|
|
Curl_safefree(smtpc->domain);
|
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
return CURLE_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* call this when the DO phase has completed */
|
2012-04-02 00:09:38 +04:00
|
|
|
static CURLcode smtp_dophase_done(struct connectdata *conn, bool connected)
|
2009-12-13 00:54:01 +03:00
|
|
|
{
|
|
|
|
struct FTP *smtp = conn->data->state.proto.smtp;
|
2011-08-24 10:55:25 +04:00
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
2009-12-13 00:54:01 +03:00
|
|
|
(void)connected;
|
|
|
|
|
|
|
|
if(smtp->transfer != FTPTRANSFER_BODY)
|
|
|
|
/* no data to transfer */
|
2010-04-17 01:43:04 +04:00
|
|
|
Curl_setup_transfer(conn, -1, -1, FALSE, NULL, -1, NULL);
|
2009-12-13 00:54:01 +03:00
|
|
|
|
2012-02-22 14:44:34 +04:00
|
|
|
Curl_safefree(smtpc->domain);
|
2009-12-31 01:50:42 +03:00
|
|
|
|
2010-04-17 01:43:04 +04:00
|
|
|
return CURLE_OK;
|
2009-12-13 00:54:01 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
/* called from multi.c while DOing */
|
2012-04-02 00:09:38 +04:00
|
|
|
static CURLcode smtp_doing(struct connectdata *conn, bool *dophase_done)
|
2009-12-13 00:54:01 +03:00
|
|
|
{
|
2012-05-23 01:08:25 +04:00
|
|
|
CURLcode result = smtp_multi_statemach(conn, dophase_done);
|
2009-12-13 00:54:01 +03:00
|
|
|
|
2012-05-23 01:08:25 +04:00
|
|
|
if(result)
|
|
|
|
DEBUGF(infof(conn->data, "DO phase failed\n"));
|
|
|
|
else
|
2009-12-13 00:54:01 +03:00
|
|
|
DEBUGF(infof(conn->data, "DO phase is complete\n"));
|
2012-05-23 01:08:25 +04:00
|
|
|
|
|
|
|
if(*dophase_done)
|
|
|
|
smtp_dophase_done(conn, FALSE /* not connected */);
|
2011-10-01 15:35:36 +04:00
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
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 14:43:17 +04:00
|
|
|
static CURLcode smtp_regular_transfer(struct connectdata *conn,
|
|
|
|
bool *dophase_done)
|
2009-12-13 00:54:01 +03:00
|
|
|
{
|
2011-08-24 10:55:25 +04:00
|
|
|
CURLcode result = CURLE_OK;
|
|
|
|
bool connected = FALSE;
|
2009-12-13 00:54:01 +03:00
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
data->req.size = -1; /* make sure this is unknown at this point */
|
|
|
|
|
|
|
|
Curl_pgrsSetUploadCounter(data, 0);
|
|
|
|
Curl_pgrsSetDownloadCounter(data, 0);
|
|
|
|
Curl_pgrsSetUploadSize(data, 0);
|
|
|
|
Curl_pgrsSetDownloadSize(data, 0);
|
|
|
|
|
|
|
|
result = smtp_perform(conn,
|
|
|
|
&connected, /* have we connected after PASV/PORT */
|
|
|
|
dophase_done); /* all commands in the DO-phase done? */
|
|
|
|
|
|
|
|
if(CURLE_OK == result) {
|
|
|
|
|
|
|
|
if(!*dophase_done)
|
|
|
|
/* the DO phase has not completed yet */
|
|
|
|
return CURLE_OK;
|
|
|
|
|
|
|
|
result = smtp_dophase_done(conn, connected);
|
|
|
|
if(result)
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2011-08-24 10:55:25 +04:00
|
|
|
static CURLcode smtp_setup_connection(struct connectdata *conn)
|
2009-12-13 00:54:01 +03:00
|
|
|
{
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
|
|
|
|
if(conn->bits.httpproxy && !data->set.tunnel_thru_httpproxy) {
|
|
|
|
/* Unless we have asked to tunnel smtp operations through the proxy, we
|
|
|
|
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
|
|
|
|
}
|
2012-02-16 14:43:17 +04:00
|
|
|
|
|
|
|
/* We explicitly mark this connection as persistent here as we're doing
|
2009-12-13 00:54:01 +03:00
|
|
|
* SMTP over HTTP and thus we accidentally avoid setting this value
|
|
|
|
* otherwise.
|
|
|
|
*/
|
|
|
|
conn->bits.close = FALSE;
|
|
|
|
#else
|
|
|
|
failf(data, "SMTP over http proxy requires HTTP support built-in!");
|
|
|
|
return CURLE_UNSUPPORTED_PROTOCOL;
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
data->state.path++; /* don't include the initial slash */
|
|
|
|
|
|
|
|
return CURLE_OK;
|
|
|
|
}
|
|
|
|
|
2010-03-28 10:45:16 +04:00
|
|
|
CURLcode Curl_smtp_escape_eob(struct connectdata *conn, ssize_t nread)
|
2009-12-31 01:09:43 +03:00
|
|
|
{
|
2012-05-17 14:31:06 +04:00
|
|
|
/* 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
|
|
|
|
data by the server.
|
|
|
|
*/
|
2010-04-02 23:02:35 +04:00
|
|
|
ssize_t i;
|
|
|
|
ssize_t si;
|
2009-12-31 01:09:43 +03:00
|
|
|
struct smtp_conn *smtpc = &conn->proto.smtpc;
|
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
|
2012-02-17 22:24:52 +04:00
|
|
|
/* Do we need to allocate the scatch buffer? */
|
2012-05-17 14:31:06 +04:00
|
|
|
if(!data->state.scratch) {
|
2011-08-24 10:55:25 +04:00
|
|
|
data->state.scratch = malloc(2 * BUFSIZE);
|
2012-02-17 22:24:52 +04:00
|
|
|
|
|
|
|
if(!data->state.scratch) {
|
|
|
|
failf (data, "Failed to alloc scratch buffer!");
|
|
|
|
return CURLE_OUT_OF_MEMORY;
|
|
|
|
}
|
2009-12-31 01:09:43 +03:00
|
|
|
}
|
2012-02-16 14:43:17 +04:00
|
|
|
|
2009-12-31 01:09:43 +03:00
|
|
|
/* This loop can be improved by some kind of Boyer-Moore style of
|
|
|
|
approach but that is saved for later... */
|
2011-10-20 02:13:09 +04:00
|
|
|
for(i = 0, si = 0; i < nread; i++) {
|
|
|
|
if(SMTP_EOB[smtpc->eob] == data->req.upload_fromhere[i])
|
|
|
|
smtpc->eob++;
|
|
|
|
else if(smtpc->eob) {
|
2012-02-17 22:24:52 +04:00
|
|
|
/* A previous substring matched so output that first */
|
2011-10-20 02:13:09 +04:00
|
|
|
memcpy(&data->state.scratch[si], SMTP_EOB, smtpc->eob);
|
|
|
|
si += smtpc->eob;
|
|
|
|
|
2012-04-02 00:09:38 +04:00
|
|
|
/* Then compare the first byte */
|
2011-10-20 14:58:26 +04:00
|
|
|
if(SMTP_EOB[0] == data->req.upload_fromhere[i])
|
|
|
|
smtpc->eob = 1;
|
2011-10-20 02:13:09 +04:00
|
|
|
else
|
|
|
|
smtpc->eob = 0;
|
2009-12-31 01:09:43 +03:00
|
|
|
}
|
2011-10-20 02:13:09 +04:00
|
|
|
|
2012-05-17 14:31:06 +04:00
|
|
|
/* Do we have a match for CRLF. as per RFC-2821, sect. 4.5.2 */
|
|
|
|
if(SMTP_EOB_FIND_LEN == smtpc->eob) {
|
|
|
|
/* Copy the replacement data to the target buffer */
|
|
|
|
memcpy(&data->state.scratch[si], SMTP_EOB_REPL, SMTP_EOB_REPL_LEN);
|
2011-10-20 02:13:09 +04:00
|
|
|
si += SMTP_EOB_REPL_LEN;
|
2012-05-17 14:31:06 +04:00
|
|
|
smtpc->eob = 0;
|
2009-12-31 01:09:43 +03:00
|
|
|
}
|
2011-10-20 02:13:09 +04:00
|
|
|
else if(!smtpc->eob)
|
|
|
|
data->state.scratch[si++] = data->req.upload_fromhere[i];
|
2012-02-16 14:43:17 +04:00
|
|
|
}
|
2009-12-31 01:09:43 +03:00
|
|
|
|
2012-02-17 22:24:52 +04:00
|
|
|
if(smtpc->eob) {
|
|
|
|
/* A substring matched before processing ended so output that now */
|
|
|
|
memcpy(&data->state.scratch[si], SMTP_EOB, smtpc->eob);
|
|
|
|
si += smtpc->eob;
|
|
|
|
smtpc->eob = 0;
|
|
|
|
}
|
|
|
|
|
2009-12-31 01:09:43 +03:00
|
|
|
if(si != nread) {
|
2012-04-02 00:09:38 +04:00
|
|
|
/* Only use the new buffer if we replaced something */
|
2009-12-31 01:09:43 +03:00
|
|
|
nread = si;
|
|
|
|
|
2012-04-02 00:09:38 +04:00
|
|
|
/* Upload from the new (replaced) buffer instead */
|
2009-12-31 01:09:43 +03:00
|
|
|
data->req.upload_fromhere = data->state.scratch;
|
|
|
|
|
2012-04-02 00:09:38 +04:00
|
|
|
/* Set the new amount too */
|
2009-12-31 01:09:43 +03:00
|
|
|
data->req.upload_present = nread;
|
|
|
|
}
|
2011-10-01 15:35:36 +04:00
|
|
|
|
2009-12-31 01:09:43 +03:00
|
|
|
return CURLE_OK;
|
|
|
|
}
|
|
|
|
|
2009-12-13 00:54:01 +03:00
|
|
|
#endif /* CURL_DISABLE_SMTP */
|