/*
* Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
- * Copyright (C) 1999-2003 Hiroyuki Yamamoto
+ * Copyright (C) 1999-2004 Hiroyuki Yamamoto
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#endif
#include <glib.h>
+#ifdef ENABLE_NLS
+#include <glib/gi18n.h>
+#else
+#define _(a) (a)
+#define N_(a) (a)
+#endif
#include <stdio.h>
#include <string.h>
-#include "intl.h"
#include "smtp.h"
#include "md5.h"
#include "base64.h"
static void smtp_session_destroy(Session *session);
-static gint smtp_from(SMTPSession *session);
-
static gint smtp_auth(SMTPSession *session);
static gint smtp_starttls(SMTPSession *session);
static gint smtp_auth_cram_md5(SMTPSession *session);
static gint smtp_auth_login(SMTPSession *session);
+static gint smtp_auth_plain(SMTPSession *session);
static gint smtp_ehlo(SMTPSession *session);
static gint smtp_ehlo_recv(SMTPSession *session, const gchar *msg);
static gint smtp_rcpt(SMTPSession *session);
static gint smtp_data(SMTPSession *session);
static gint smtp_send_data(SMTPSession *session);
-static gint smtp_rset(SMTPSession *session);
-static gint smtp_quit(SMTPSession *session);
+static gint smtp_make_ready(SMTPSession *session);
static gint smtp_eom(SMTPSession *session);
static gint smtp_session_recv_msg(Session *session, const gchar *msg);
SMTPSession *session;
session = g_new0(SMTPSession, 1);
+
+ session_init(SESSION(session));
+
SESSION(session)->type = SESSION_SMTP;
- SESSION(session)->server = NULL;
- SESSION(session)->port = 0;
- SESSION(session)->sock = NULL;
- SESSION(session)->state = SESSION_READY;
- SESSION(session)->data = NULL;
SESSION(session)->recv_msg = smtp_session_recv_msg;
session->send_data = NULL;
session->send_data_len = 0;
+ session->max_message_size = -1;
+
session->avail_auth_type = 0;
session->forced_auth_type = 0;
session->auth_type = 0;
+ session->esmtp_flags = 0;
+
+ session->error_val = SM_OK;
+ session->error_msg = NULL;
return SESSION(session);
}
g_free(smtp_session->from);
g_free(smtp_session->send_data);
+
+ g_free(smtp_session->error_msg);
}
-static gint smtp_from(SMTPSession *session)
+gint smtp_from(SMTPSession *session)
{
gchar buf[MSGBUFSIZE];
+ gchar *mail_size = NULL;
g_return_val_if_fail(session->from != NULL, SM_ERROR);
session->state = SMTP_FROM;
+
+ if (session->is_esmtp && (session->esmtp_flags & ESMTP_SIZE)!=0)
+ mail_size = g_strdup_printf(" SIZE=%d", session->send_data_len);
+ else
+ mail_size = g_strdup("");
+
if (strchr(session->from, '<'))
- g_snprintf(buf, sizeof(buf), "MAIL FROM: %s", session->from);
+ g_snprintf(buf, sizeof(buf), "MAIL FROM:%s%s", session->from,
+ mail_size);
else
- g_snprintf(buf, sizeof(buf), "MAIL FROM: <%s>", session->from);
+ g_snprintf(buf, sizeof(buf), "MAIL FROM:<%s>%s", session->from,
+ mail_size);
- session_send_msg(SESSION(session), SESSION_MSG_NORMAL, buf);
- log_print("SMTP> %s\n", buf);
+ g_free(mail_size);
+
+ if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL, buf) < 0)
+ return SM_ERROR;
+ log_print("%sSMTP> %s\n", (session->is_esmtp?"E":""), buf);
return SM_OK;
}
(session->forced_auth_type == 0 &&
(session->avail_auth_type & SMTPAUTH_LOGIN) != 0))
smtp_auth_login(session);
+ else if (session->forced_auth_type == SMTPAUTH_PLAIN ||
+ (session->forced_auth_type == 0 &&
+ (session->avail_auth_type & SMTPAUTH_PLAIN) != 0))
+ smtp_auth_plain(session);
else {
log_warning(_("SMTP AUTH not available\n"));
return SM_AUTHFAIL;
if (!strncmp(msg, "334 ", 4)) {
base64_encode(buf, session->user, strlen(session->user));
- session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
- buf);
+ if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
+ buf) < 0)
+ return SM_ERROR;
log_print("ESMTP> [USERID]\n");
} else {
/* Server rejects AUTH */
- session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
- "*");
+ if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
+ "*") < 0)
+ return SM_ERROR;
log_print("ESMTP> *\n");
}
break;
base64_encode(response64, response, strlen(response));
g_free(response);
- session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
- response64);
+ if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
+ response64) < 0)
+ return SM_ERROR;
log_print("ESMTP> %s\n", response64);
g_free(response64);
} else {
/* Server rejects AUTH */
- session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
- "*");
+ if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL,
+ "*") < 0)
+ return SM_ERROR;
log_print("ESMTP> *\n");
}
break;
case SMTPAUTH_DIGEST_MD5:
default:
/* stop smtp_auth when no correct authtype */
- session_send_msg(SESSION(session), SESSION_MSG_NORMAL, "*");
+ if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL, "*") < 0)
+ return SM_ERROR;
log_print("ESMTP> *\n");
break;
}
/* Server rejects AUTH */
g_snprintf(buf, sizeof(buf), "*");
- session_send_msg(SESSION(session), SESSION_MSG_NORMAL, buf);
+ if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL, buf) < 0)
+ return SM_ERROR;
+
log_print("ESMTP> [PASSWORD]\n");
return SM_OK;
g_snprintf(buf, sizeof(buf), "EHLO %s",
session->hostname ? session->hostname : get_domain_name());
- session_send_msg(SESSION(session), SESSION_MSG_NORMAL, buf);
+ if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL, buf) < 0)
+ return SM_ERROR;
log_print("ESMTP> %s\n", buf);
return SM_OK;
const gchar *p = msg;
p += 3;
if (*p == '-' || *p == ' ') p++;
- if (g_strncasecmp(p, "AUTH", 4) == 0) {
+ if (g_ascii_strncasecmp(p, "AUTH", 4) == 0) {
p += 5;
+ if (strcasestr(p, "PLAIN"))
+ session->avail_auth_type |= SMTPAUTH_PLAIN;
if (strcasestr(p, "LOGIN"))
session->avail_auth_type |= SMTPAUTH_LOGIN;
if (strcasestr(p, "CRAM-MD5"))
if (strcasestr(p, "DIGEST-MD5"))
session->avail_auth_type |= SMTPAUTH_DIGEST_MD5;
}
+ if (g_ascii_strncasecmp(p, "SIZE", 4) == 0) {
+ p += 5;
+ session->max_message_size = atoi(p);
+ session->esmtp_flags |= ESMTP_SIZE;
+ }
+ if (g_ascii_strncasecmp(p, "STARTTLS", 8) == 0) {
+ p += 9;
+ session->avail_auth_type |= SMTPAUTH_TLS_AVAILABLE;
+ }
return SM_OK;
} else if ((msg[0] == '1' || msg[0] == '2' || msg[0] == '3') &&
(msg[3] == ' ' || msg[3] == '\0'))
{
session->state = SMTP_STARTTLS;
- session_send_msg(SESSION(session), SESSION_MSG_NORMAL, "STARTTLS");
+ if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL, "STARTTLS") < 0)
+ return SM_ERROR;
log_print("ESMTP> STARTTLS\n");
return SM_OK;
session->state = SMTP_AUTH;
session->auth_type = SMTPAUTH_CRAM_MD5;
- session_send_msg(SESSION(session), SESSION_MSG_NORMAL, "AUTH CRAM-MD5");
+ if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL, "AUTH CRAM-MD5") < 0)
+ return SM_ERROR;
log_print("ESMTP> AUTH CRAM-MD5\n");
return SM_OK;
}
+static gint smtp_auth_plain(SMTPSession *session)
+{
+ gchar buf[MSGBUFSIZE];
+
+ /*
+ * +1 +1 +1
+ * \0<user>\0<pass>\0
+ */
+ int b64len = (1 + strlen(session->user) + 1 + strlen(session->pass) + 1);
+ gchar *b64buf = g_malloc(b64len);
+
+ /* use the char *ptr to walk the base64 string with embedded \0 */
+ char *a = b64buf;
+ int b64cnt = 0;
+
+ session->state = SMTP_AUTH_PLAIN;
+ session->auth_type = SMTPAUTH_PLAIN;
+
+ memset(buf, 0, sizeof buf);
+
+ /*
+ * have to construct the string bit by bit. sprintf can't do it in one.
+ * first field is null, so string is \0<user>\0<password>
+ */
+ *a = 0;
+ a++;
+
+ g_snprintf (a, b64len - 1, "%s", session->user);
+
+ b64cnt = strlen(session->user)+1;
+ a += b64cnt;
+
+ g_snprintf (a, b64len - b64cnt - 1, "%s", session->pass);
+ b64cnt += strlen(session->pass) + 1;
+
+ /*
+ * reuse the char *ptr to offset into the textbuf to meld
+ * the plaintext ESMTP message and the base64 string value
+ */
+ strcpy(buf, "AUTH PLAIN ");
+ a = buf + strlen(buf);
+ base64_encode(a, b64buf, b64cnt);
+
+ if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL, buf) < 0)
+ return SM_ERROR;
+
+ log_print("ESMTP> [AUTH PLAIN]\n");
+
+ g_free(b64buf);
+
+ return SM_OK;
+}
+
static gint smtp_auth_login(SMTPSession *session)
{
session->state = SMTP_AUTH;
session->auth_type = SMTPAUTH_LOGIN;
- session_send_msg(SESSION(session), SESSION_MSG_NORMAL, "AUTH LOGIN");
+ if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL, "AUTH LOGIN") < 0)
+ return SM_ERROR;
log_print("ESMTP> AUTH LOGIN\n");
return SM_OK;
g_snprintf(buf, sizeof(buf), "HELO %s",
session->hostname ? session->hostname : get_domain_name());
- session_send_msg(SESSION(session), SESSION_MSG_NORMAL, buf);
+ if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL, buf) < 0)
+ return SM_ERROR;
log_print("SMTP> %s\n", buf);
return SM_OK;
to = (gchar *)session->cur_to->data;
if (strchr(to, '<'))
- g_snprintf(buf, sizeof(buf), "RCPT TO: %s", to);
+ g_snprintf(buf, sizeof(buf), "RCPT TO:%s", to);
else
- g_snprintf(buf, sizeof(buf), "RCPT TO: <%s>", to);
- session_send_msg(SESSION(session), SESSION_MSG_NORMAL, buf);
+ g_snprintf(buf, sizeof(buf), "RCPT TO:<%s>", to);
+ if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL, buf) < 0)
+ return SM_ERROR;
log_print("SMTP> %s\n", buf);
session->cur_to = session->cur_to->next;
{
session->state = SMTP_DATA;
- session_send_msg(SESSION(session), SESSION_MSG_NORMAL, "DATA");
+ if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL, "DATA") < 0)
+ return SM_ERROR;
log_print("SMTP> DATA\n");
return SM_OK;
return SM_OK;
}
-static gint smtp_rset(SMTPSession *session)
+static gint smtp_make_ready(SMTPSession *session)
{
- session->state = SMTP_RSET;
-
- session_send_msg(SESSION(session), SESSION_MSG_NORMAL, "RSET");
- log_print("SMTP> RSET\n");
+ session->state = SMTP_MAIL_SENT_OK;
return SM_OK;
}
-static gint smtp_quit(SMTPSession *session)
+gint smtp_quit(SMTPSession *session)
{
session->state = SMTP_QUIT;
{
session->state = SMTP_EOM;
- session_send_msg(SESSION(session), SESSION_MSG_NORMAL, ".");
+ if (session_send_msg(SESSION(session), SESSION_MSG_NORMAL, ".") < 0)
+ return SM_ERROR;
log_print("SMTP> . (EOM)\n");
return SM_OK;
{
SMTPSession *smtp_session = SMTP_SESSION(session);
gboolean cont = FALSE;
-
- if (strlen(msg) < 4)
+ gint ret = 0;
+
+ if (strlen(msg) < 4) {
+ log_warning(_("bad SMTP response\n"));
return -1;
+ }
- log_print("SMTP< %s\n", msg);
+ switch (smtp_session->state) {
+ case SMTP_EHLO:
+ case SMTP_STARTTLS:
+ case SMTP_AUTH:
+ case SMTP_AUTH_PLAIN:
+ case SMTP_AUTH_LOGIN_USER:
+ case SMTP_AUTH_LOGIN_PASS:
+ case SMTP_AUTH_CRAM_MD5:
+ log_print("ESMTP< %s\n", msg);
+ break;
+ default:
+ log_print("SMTP< %s\n", msg);
+ break;
+ }
if (msg[0] == '5' && msg[1] == '0' &&
(msg[2] == '4' || msg[2] == '3' || msg[2] == '1')) {
+ log_warning(_("error occurred on SMTP session\n"));
smtp_session->state = SMTP_ERROR;
+ smtp_session->error_val = SM_ERROR;
+ g_free(smtp_session->error_msg);
+ smtp_session->error_msg = g_strdup(msg);
+ return -1;
+ }
+
+ if (!strncmp(msg, "535", 3)) {
+ log_warning(_("error occurred on authentication\n"));
+ smtp_session->state = SMTP_ERROR;
+ smtp_session->error_val = SM_AUTHFAIL;
+ g_free(smtp_session->error_msg);
+ smtp_session->error_msg = g_strdup(msg);
return -1;
}
if (msg[0] != '1' && msg[0] != '2' && msg[0] != '3') {
+ log_warning(_("error occurred on SMTP session\n"));
smtp_session->state = SMTP_ERROR;
+ smtp_session->error_val = SM_ERROR;
+ g_free(smtp_session->error_msg);
+ smtp_session->error_msg = g_strdup(msg);
return -1;
}
if (msg[3] == '-')
cont = TRUE;
else if (msg[3] != ' ' && msg[3] != '\0') {
+ log_warning(_("bad SMTP response\n"));
smtp_session->state = SMTP_ERROR;
+ smtp_session->error_val = SM_UNRECOVERABLE;
return -1;
}
/* ignore all multiline responses except for EHLO */
if (cont && smtp_session->state != SMTP_EHLO)
- return 1;
+ return session_recv_msg(session);
switch (smtp_session->state) {
case SMTP_READY:
+ if (strstr(msg, "ESMTP"))
+ smtp_session->is_esmtp = TRUE;
case SMTP_CONNECTED:
#if USE_OPENSSL
- if (smtp_session->user || session->ssl_type != SSL_NONE)
+ if (smtp_session->user || session->ssl_type != SSL_NONE ||
+ smtp_session->is_esmtp)
#else
- if (smtp_session->user)
+ if (smtp_session->user || smtp_session->is_esmtp)
#endif
- smtp_ehlo(smtp_session);
+ ret = smtp_ehlo(smtp_session);
else
- smtp_helo(smtp_session);
+ ret = smtp_helo(smtp_session);
break;
case SMTP_HELO:
- smtp_from(smtp_session);
+ ret = smtp_from(smtp_session);
break;
case SMTP_EHLO:
- smtp_ehlo_recv(smtp_session, msg);
+ ret = smtp_ehlo_recv(smtp_session, msg);
if (cont == TRUE)
break;
+ if (smtp_session->max_message_size > 0
+ && smtp_session->max_message_size <
+ smtp_session->send_data_len) {
+ log_warning(_("Message is too big "
+ "(Maximum size is %s)\n"),
+ to_human_readable(
+ (off_t)(smtp_session->max_message_size)));
+ smtp_session->state = SMTP_ERROR;
+ smtp_session->error_val = SM_ERROR;
+ return -1;
+ }
#if USE_OPENSSL
if (session->ssl_type == SSL_STARTTLS &&
smtp_session->tls_init_done == FALSE) {
- smtp_starttls(smtp_session);
+ ret = smtp_starttls(smtp_session);
break;
}
#endif
if (smtp_session->user) {
- if (smtp_auth(smtp_session) != SM_OK)
- smtp_from(smtp_session);
+ if (smtp_auth(smtp_session) != SM_OK) {
+#if USE_OPENSSL
+ if (session->ssl_type == SSL_NONE
+ && smtp_session->tls_init_done == FALSE
+ && (smtp_session->avail_auth_type & SMTPAUTH_TLS_AVAILABLE))
+ ret = smtp_starttls(smtp_session);
+ else
+#endif
+ ret = smtp_from(smtp_session);
+ }
} else
- smtp_from(smtp_session);
+ ret = smtp_from(smtp_session);
break;
case SMTP_STARTTLS:
#if USE_OPENSSL
- if (session_start_tls(session) < 0)
+ if (session_start_tls(session) < 0) {
+ log_warning(_("can't start TLS session\n"));
+ smtp_session->state = SMTP_ERROR;
+ smtp_session->error_val = SM_ERROR;
return -1;
+ }
smtp_session->tls_init_done = TRUE;
- smtp_ehlo(smtp_session);
+ ret = smtp_ehlo(smtp_session);
#endif
break;
case SMTP_AUTH:
- smtp_auth_recv(smtp_session, msg);
+ ret = smtp_auth_recv(smtp_session, msg);
break;
case SMTP_AUTH_LOGIN_USER:
- smtp_auth_login_user_recv(smtp_session, msg);
+ ret = smtp_auth_login_user_recv(smtp_session, msg);
break;
+ case SMTP_AUTH_PLAIN:
case SMTP_AUTH_LOGIN_PASS:
case SMTP_AUTH_CRAM_MD5:
- smtp_from(smtp_session);
+ ret = smtp_from(smtp_session);
break;
case SMTP_FROM:
if (smtp_session->cur_to)
- smtp_rcpt(smtp_session);
+ ret = smtp_rcpt(smtp_session);
break;
case SMTP_RCPT:
if (smtp_session->cur_to)
- smtp_rcpt(smtp_session);
+ ret = smtp_rcpt(smtp_session);
else
- smtp_data(smtp_session);
+ ret = smtp_data(smtp_session);
break;
case SMTP_DATA:
- smtp_send_data(smtp_session);
+ ret = smtp_send_data(smtp_session);
break;
case SMTP_EOM:
- smtp_quit(smtp_session);
+ smtp_make_ready(smtp_session);
break;
case SMTP_QUIT:
session_disconnect(session);
break;
case SMTP_ERROR:
default:
+ log_warning(_("error occurred on SMTP session\n"));
+ smtp_session->error_val = SM_ERROR;
return -1;
}
- if (cont)
- return 1;
+ if (cont && ret == SM_OK)
+ return session_recv_msg(session);
+
+ if (ret != SM_OK)
+ smtp_session->error_val = SM_ERROR;
- return 0;
+ return ret == SM_OK ? 0 : -1;
}
static gint smtp_session_send_data_finished(Session *session, guint len)
{
- smtp_eom(SMTP_SESSION(session));
- return 0;
+ return smtp_eom(SMTP_SESSION(session));
}
projects / claws.git / blobdiff