2007-08-24 [colin] 2.10.0cvs166
[claws.git] / src / send_message.c
1 /*
2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3  * Copyright (C) 1999-2007 Hiroyuki Yamamoto and the Claws Mail team
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 3 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
17  * 
18  */
19
20 #ifdef HAVE_CONFIG_H
21 #  include "config.h"
22 #endif
23
24 #include "defs.h"
25
26 #include <glib.h>
27 #include <glib/gi18n.h>
28 #include <gtk/gtkmain.h>
29 #include <gtk/gtksignal.h>
30 #include <gtk/gtkwindow.h>
31 #include <stdio.h>
32 #include <string.h>
33 #include <signal.h>
34 #include <sys/types.h>
35 #ifndef G_OS_WIN32
36 #include <sys/wait.h>
37 #endif
38
39 #include "send_message.h"
40 #include "session.h"
41 #include "ssl.h"
42 #include "smtp.h"
43 #include "prefs_common.h"
44 #include "prefs_account.h"
45 #include "procheader.h"
46 #include "account.h"
47 #include "progressdialog.h"
48 #include "statusbar.h"
49 #include "inputdialog.h"
50 #include "alertpanel.h"
51 #include "manage_window.h"
52 #include "socket.h"
53 #include "utils.h"
54 #include "gtkutils.h"
55 #include "inc.h"
56 #include "log.h"
57
58 typedef struct _SendProgressDialog      SendProgressDialog;
59
60 struct _SendProgressDialog
61 {
62         ProgressDialog *dialog;
63         Session *session;
64         gboolean cancelled;
65 };
66
67 static gint send_recv_message           (Session                *session,
68                                          const gchar            *msg,
69                                          gpointer                data);
70 static gint send_send_data_progressive  (Session                *session,
71                                          guint                   cur_len,
72                                          guint                   total_len,
73                                          gpointer                data);
74 static gint send_send_data_finished     (Session                *session,
75                                          guint                   len,
76                                          gpointer                data);
77
78 static SendProgressDialog *send_progress_dialog_create(void);
79 static void send_progress_dialog_destroy(SendProgressDialog *dialog);
80
81 static void send_cancel_button_cb       (GtkWidget      *widget,
82                                          gpointer        data);
83
84 static void send_put_error              (Session        *session);
85
86
87 gint send_message(const gchar *file, PrefsAccount *ac_prefs, GSList *to_list)
88 {
89         FILE *fp;
90         gint val;
91
92         g_return_val_if_fail(file != NULL, -1);
93         g_return_val_if_fail(ac_prefs != NULL, -1);
94         g_return_val_if_fail(to_list != NULL, -1);
95
96         if ((fp = g_fopen(file, "rb")) == NULL) {
97                 FILE_OP_ERROR(file, "fopen");
98                 return -1;
99         }
100
101         inc_lock();
102         if (ac_prefs->use_mail_command && ac_prefs->mail_command &&
103             (*ac_prefs->mail_command)) {
104                 val = send_message_local(ac_prefs->mail_command, fp);
105                 fclose(fp);
106                 inc_unlock();
107                 return val;
108         } else {
109                 val = send_message_smtp(ac_prefs, to_list, fp);
110                 
111                 fclose(fp);
112                 inc_unlock();
113                 return val;
114         }
115 }
116
117 enum
118 {
119         Q_SENDER     = 0,
120         Q_SMTPSERVER = 1,
121         Q_RECIPIENTS = 2,
122         Q_ACCOUNT_ID = 3
123 };
124
125 gint send_message_local(const gchar *command, FILE *fp)
126 {
127         gchar **argv;
128         GPid pid;
129         gint child_stdin;
130         gchar buf[BUFFSIZE];
131         gboolean err = FALSE;
132         gint status;
133
134         g_return_val_if_fail(command != NULL, -1);
135         g_return_val_if_fail(fp != NULL, -1);
136
137         log_message(LOG_PROTOCOL, _("Sending message using command: %s\n"), command);
138
139         argv = strsplit_with_quote(command, " ", 0);
140
141         if (g_spawn_async_with_pipes(NULL, argv, NULL,
142 #ifdef G_OS_WIN32
143                                      0,
144 #else
145                                      G_SPAWN_DO_NOT_REAP_CHILD,
146 #endif
147                                      NULL, NULL,
148                                      &pid, &child_stdin, NULL, NULL,
149                                      NULL) == FALSE) {
150                 g_snprintf(buf, sizeof(buf),
151                            _("Couldn't execute command: %s"), command);
152                 log_warning(LOG_PROTOCOL, "%s\n", buf);
153                 alertpanel_error("%s", buf);
154                 g_strfreev(argv);
155                 return -1;
156         }
157         g_strfreev(argv);
158
159         while (fgets(buf, sizeof(buf), fp) != NULL) {
160                 strretchomp(buf);
161                 if (buf[0] == '.' && buf[1] == '\0') {
162                         if (fd_write_all(child_stdin, ".", 1) < 0) {
163                                 err = TRUE;
164                                 break;
165                         }
166                 }
167                 if (fd_write_all(child_stdin, buf, strlen(buf)) < 0 ||
168                     fd_write_all(child_stdin, "\n", 1) < 0) {
169                         err = TRUE;
170                         break;
171                 }
172         }
173
174         fd_close(child_stdin);
175
176 #ifndef G_OS_WIN32
177         waitpid(pid, &status, 0);
178         if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
179                 err = TRUE;
180 #endif
181
182         g_spawn_close_pid(pid);
183
184         if (err) {
185                 g_snprintf(buf, sizeof(buf),
186                            _("Error occurred while executing command: %s"),
187                            command);
188                 log_warning(LOG_PROTOCOL, "%s\n", buf);
189                 alertpanel_error("%s", buf);
190                 return -1;
191         }
192
193         return 0;
194 }
195
196 gint send_message_smtp_full(PrefsAccount *ac_prefs, GSList *to_list, FILE *fp, gboolean keep_session)
197 {
198         Session *session;
199         SMTPSession *smtp_session;
200         gushort port = 0;
201         SendProgressDialog *dialog;
202         gchar buf[BUFFSIZE];
203         gint ret = 0;
204         gboolean was_inited = FALSE;
205         MsgInfo *tmp_msginfo = NULL;
206         MsgFlags flags = {0, 0};
207         long fp_pos = 0;
208         gchar spec_from[BUFFSIZE];
209
210         g_return_val_if_fail(ac_prefs != NULL, -1);
211         g_return_val_if_fail(ac_prefs->address != NULL, -1);
212         g_return_val_if_fail(ac_prefs->smtp_server != NULL, -1);
213         g_return_val_if_fail(to_list != NULL, -1);
214         g_return_val_if_fail(fp != NULL, -1);
215
216         /* get the From address used, not necessarily the ac_prefs',
217          * because it's editable. */
218
219         fp_pos = ftell(fp);
220         tmp_msginfo = procheader_parse_stream(fp, flags, FALSE, FALSE);
221         fseek(fp, fp_pos, SEEK_SET);
222         
223         if (tmp_msginfo && tmp_msginfo->from) {
224                 strncpy2(spec_from, tmp_msginfo->from, BUFFSIZE-1);
225                 extract_address(spec_from);
226         } else {
227                 strncpy2(spec_from, ac_prefs->address, BUFFSIZE-1);
228         }
229         if (tmp_msginfo) {
230                 procmsg_msginfo_free(tmp_msginfo);
231         }
232
233         if (!ac_prefs->session) {
234                 /* we can't reuse a previously initialised session */
235                 session = smtp_session_new();
236                 smtp_session = SMTP_SESSION(session);
237
238                 if (ac_prefs->set_domain && ac_prefs->domain && strlen(ac_prefs->domain)) {
239                         smtp_session->hostname = g_strdup(ac_prefs->domain);
240                 } else {
241                         smtp_session->hostname = NULL;
242                 }
243
244                 if (ac_prefs->use_smtp_auth) {
245                         smtp_session->forced_auth_type = ac_prefs->smtp_auth_type;
246                         if (ac_prefs->smtp_userid && strlen(ac_prefs->smtp_userid)) {
247                                 smtp_session->user = g_strdup(ac_prefs->smtp_userid);
248                                 if (ac_prefs->smtp_passwd)
249                                         smtp_session->pass =
250                                                 g_strdup(ac_prefs->smtp_passwd);
251                                 else if (ac_prefs->tmp_smtp_pass)
252                                         smtp_session->pass =
253                                                 g_strdup(ac_prefs->tmp_smtp_pass);
254                                 else {
255                                         smtp_session->pass =
256                                                 input_dialog_query_password
257                                                         (ac_prefs->smtp_server,
258                                                          smtp_session->user);
259                                         if (!smtp_session->pass) {
260                                                 session_destroy(session);
261                                                 return -1;
262                                         }
263                                         ac_prefs->tmp_smtp_pass =
264                                                 g_strdup(smtp_session->pass);
265                                 }
266                         } else {
267                                 smtp_session->user = g_strdup(ac_prefs->userid);
268                                 if (ac_prefs->passwd)
269                                         smtp_session->pass = g_strdup(ac_prefs->passwd);
270                                 else if (ac_prefs->tmp_pass)
271                                         smtp_session->pass =
272                                                 g_strdup(ac_prefs->tmp_pass);
273                                 else {
274                                         smtp_session->pass =
275                                                 input_dialog_query_password
276                                                         (ac_prefs->smtp_server,
277                                                          smtp_session->user);
278                                         if (!smtp_session->pass) {
279                                                 session_destroy(session);
280                                                 return -1;
281                                         }
282                                         ac_prefs->tmp_pass =
283                                                 g_strdup(smtp_session->pass);
284                                 }
285                         }
286                 } else {
287                         smtp_session->user = NULL;
288                         smtp_session->pass = NULL;
289                 }
290
291         #if USE_OPENSSL
292                 port = ac_prefs->set_smtpport ? ac_prefs->smtpport :
293                         ac_prefs->ssl_smtp == SSL_TUNNEL ? SSMTP_PORT : SMTP_PORT;
294                 session->ssl_type = ac_prefs->ssl_smtp;
295                 if (ac_prefs->ssl_smtp != SSL_NONE)
296                         session->nonblocking = ac_prefs->use_nonblocking_ssl;
297         #else
298                 if (ac_prefs->ssl_smtp != SSL_NONE) {
299                         if (alertpanel_full(_("Insecure connection"),
300                                 _("This connection is configured to be secured "
301                                   "using SSL, but SSL is not available in this "
302                                   "build of Claws Mail. \n\n"
303                                   "Do you want to continue connecting to this "
304                                   "server? The communication would not be "
305                                   "secure."),
306                                   GTK_STOCK_CANCEL, _("Con_tinue connecting"),
307                                   NULL, FALSE, NULL, ALERT_WARNING,
308                                   G_ALERTDEFAULT) != G_ALERTALTERNATE) {
309                                 session_destroy(session);
310                                 return -1;
311                         }
312                 }
313                 port = ac_prefs->set_smtpport ? ac_prefs->smtpport : SMTP_PORT;
314         #endif
315
316                 dialog = send_progress_dialog_create();
317                 dialog->session = session;
318                 smtp_session->dialog = dialog;
319
320                 progress_dialog_list_set(dialog->dialog, 0, NULL, 
321                                          ac_prefs->smtp_server, 
322                                          _("Connecting"));
323
324                 if (ac_prefs->pop_before_smtp
325                     && (ac_prefs->protocol == A_APOP || ac_prefs->protocol == A_POP3)
326                     && (time(NULL) - ac_prefs->last_pop_login_time) > (60 * ac_prefs->pop_before_smtp_timeout)) {
327                         g_snprintf(buf, sizeof(buf), _("Doing POP before SMTP..."));
328                         log_message(LOG_PROTOCOL, buf);
329                         progress_dialog_set_label(dialog->dialog, buf);
330                         progress_dialog_list_set_status(dialog->dialog, 0, _("POP before SMTP"));
331                         GTK_EVENTS_FLUSH();
332                         inc_pop_before_smtp(ac_prefs);
333                 }
334
335                 g_snprintf(buf, sizeof(buf), _("Connecting to SMTP server: %s ..."),
336                            ac_prefs->smtp_server);
337                 progress_dialog_set_label(dialog->dialog, buf);
338                 log_message(LOG_PROTOCOL, "%s\n", buf);
339
340                 session_set_recv_message_notify(session, send_recv_message, dialog);
341                 session_set_send_data_progressive_notify
342                         (session, send_send_data_progressive, dialog);
343                 session_set_send_data_notify(session, send_send_data_finished, dialog);
344
345         } else {
346                 /* everything is ready to start at MAIL FROM:, just
347                  * reinit useful variables. 
348                  */
349                 session = SESSION(ac_prefs->session);
350                 ac_prefs->session = NULL;
351                 smtp_session = SMTP_SESSION(session);
352                 smtp_session->state = SMTP_HELO;
353                 dialog = (SendProgressDialog *)smtp_session->dialog;
354                 was_inited = TRUE;
355         }
356
357         /* This has to be initialised for every mail sent */
358         smtp_session->from = g_strdup(spec_from);
359         smtp_session->to_list = to_list;
360         smtp_session->cur_to = to_list;
361         smtp_session->send_data = (guchar *)get_outgoing_rfc2822_str(fp);
362         smtp_session->send_data_len = strlen((gchar *)smtp_session->send_data);
363
364         session_set_timeout(session,
365                             prefs_common.io_timeout_secs * 1000);
366         /* connect if necessary */
367         if (!was_inited && session_connect(session, ac_prefs->smtp_server, port) < 0) {
368                 session_destroy(session);
369                 send_progress_dialog_destroy(dialog);
370                 ac_prefs->session = NULL;
371                 return -1;
372         }
373
374         debug_print("send_message_smtp(): begin event loop\n");
375
376         if (was_inited) {
377                 /* as the server is quiet, start sending ourselves */
378                 smtp_from(smtp_session);
379         }
380
381         while (session_is_connected(session) && dialog->cancelled == FALSE
382                 && SMTP_SESSION(session)->state != SMTP_MAIL_SENT_OK)
383                 gtk_main_iteration();
384
385         if (SMTP_SESSION(session)->error_val == SM_AUTHFAIL) {
386                 if (ac_prefs->smtp_userid && ac_prefs->tmp_smtp_pass) {
387                         g_free(ac_prefs->tmp_smtp_pass);
388                         ac_prefs->tmp_smtp_pass = NULL;
389                 } else if (ac_prefs->tmp_pass) {
390                         g_free(ac_prefs->tmp_pass);
391                         ac_prefs->tmp_pass = NULL;
392                 }
393                 ret = -1;
394         } else if (SMTP_SESSION(session)->state == SMTP_MAIL_SENT_OK) {
395                 log_message(LOG_PROTOCOL, "%s\n", _("Mail sent successfully."));
396                 ret = 0;
397         } else if (session->state == SESSION_EOF &&
398                    SMTP_SESSION(session)->state == SMTP_QUIT) {
399                 /* consider EOF right after QUIT successful */
400                 log_warning(LOG_PROTOCOL, "%s\n", _("Connection closed by the remote host."));
401                 ret = 0;
402         } else if (session->state == SESSION_ERROR ||
403                    session->state == SESSION_EOF ||
404                    session->state == SESSION_TIMEOUT ||
405                    SMTP_SESSION(session)->state == SMTP_ERROR ||
406                    SMTP_SESSION(session)->error_val != SM_OK)
407                 ret = -1;
408         else if (dialog->cancelled == TRUE)
409                 ret = -1;
410
411         if (ret == -1) {
412                 manage_window_focus_in(dialog->dialog->window, NULL, NULL);
413                 send_put_error(session);
414                 manage_window_focus_out(dialog->dialog->window, NULL, NULL);
415         }
416
417         /* if we should close the connection, let's do it.
418          * Close it in case of error, too, as it helps reinitializing things
419          * easier.
420          */
421         if (!keep_session || ret != 0) {
422                 if (session_is_connected(session))
423                         smtp_quit(smtp_session);
424                 while (session_is_connected(session) && !dialog->cancelled)
425                         gtk_main_iteration();
426                 session_destroy(session);
427                 ac_prefs->session = NULL;
428                 send_progress_dialog_destroy(dialog);
429         } else {
430                 g_free(smtp_session->from);
431                 g_free(smtp_session->send_data);
432                 g_free(smtp_session->error_msg);
433         }
434         if (keep_session && ret == 0 && ac_prefs->session == NULL)
435                 ac_prefs->session = SMTP_SESSION(session);
436
437
438         statusbar_pop_all();
439         statusbar_verbosity_set(FALSE);
440         return ret;
441 }
442
443 gint send_message_smtp(PrefsAccount *ac_prefs, GSList *to_list, FILE *fp)
444 {
445         return send_message_smtp_full(ac_prefs, to_list, fp, FALSE);
446 }
447
448 static gint send_recv_message(Session *session, const gchar *msg, gpointer data)
449 {
450         gchar buf[BUFFSIZE];
451         SMTPSession *smtp_session = SMTP_SESSION(session);
452         SendProgressDialog *dialog = (SendProgressDialog *)data;
453         gchar *state_str = NULL;
454
455         g_return_val_if_fail(dialog != NULL, -1);
456
457         switch (smtp_session->state) {
458         case SMTP_READY:
459         case SMTP_CONNECTED:
460                 return 0;
461         case SMTP_HELO:
462                 g_snprintf(buf, sizeof(buf), _("Sending HELO..."));
463                 state_str = _("Authenticating");
464                 statusbar_print_all(_("Sending message..."));
465                 break;
466         case SMTP_EHLO:
467                 g_snprintf(buf, sizeof(buf), _("Sending EHLO..."));
468                 state_str = _("Authenticating");
469                 statusbar_print_all(_("Sending message..."));
470                 break;
471         case SMTP_AUTH:
472                 g_snprintf(buf, sizeof(buf), _("Authenticating..."));
473                 state_str = _("Authenticating");
474                 break;
475         case SMTP_FROM:
476                 g_snprintf(buf, sizeof(buf), _("Sending MAIL FROM..."));
477                 state_str = _("Sending");
478                 break;
479         case SMTP_RCPT:
480                 g_snprintf(buf, sizeof(buf), _("Sending RCPT TO..."));
481                 state_str = _("Sending");
482                 break;
483         case SMTP_DATA:
484         case SMTP_EOM:
485                 g_snprintf(buf, sizeof(buf), _("Sending DATA..."));
486                 state_str = _("Sending");
487                 break;
488         case SMTP_QUIT:
489                 g_snprintf(buf, sizeof(buf), _("Quitting..."));
490                 state_str = _("Quitting");
491                 break;
492         case SMTP_ERROR:
493                 g_warning("send: error: %s\n", msg);
494                 return 0;
495         default:
496                 return 0;
497         }
498
499         progress_dialog_set_label(dialog->dialog, buf);
500         progress_dialog_list_set_status(dialog->dialog, 0, state_str);
501
502         return 0;
503 }
504
505 static gint send_send_data_progressive(Session *session, guint cur_len,
506                                        guint total_len, gpointer data)
507 {
508         gchar buf[BUFFSIZE];
509         SendProgressDialog *dialog = (SendProgressDialog *)data;
510         MainWindow *mainwin = mainwindow_get_mainwindow();
511         
512         g_return_val_if_fail(dialog != NULL, -1);
513
514         if (SMTP_SESSION(session)->state != SMTP_SEND_DATA &&
515             SMTP_SESSION(session)->state != SMTP_EOM)
516                 return 0;
517
518         g_snprintf(buf, sizeof(buf), _("Sending message (%d / %d bytes)"),
519                    cur_len, total_len);
520         progress_dialog_set_label(dialog->dialog, buf);
521         progress_dialog_set_fraction
522                 (dialog->dialog, (total_len == 0) ? 0 : (gfloat)cur_len / (gfloat)total_len);
523
524         if (mainwin)
525                 gtk_progress_bar_set_fraction
526                         (GTK_PROGRESS_BAR(mainwin->progressbar),
527                          (total_len == 0) ? 0 : (gfloat)cur_len / (gfloat)total_len);
528
529         return 0;
530 }
531
532 static gint send_send_data_finished(Session *session, guint len, gpointer data)
533 {
534         SendProgressDialog *dialog = (SendProgressDialog *)data;
535         MainWindow *mainwin = mainwindow_get_mainwindow();
536
537         g_return_val_if_fail(dialog != NULL, -1);
538
539         send_send_data_progressive(session, len, len, dialog);
540         if (mainwin)
541                 gtk_progress_bar_set_fraction
542                         (GTK_PROGRESS_BAR(mainwin->progressbar),(gfloat)0);
543
544         return 0;
545 }
546
547 static void send_progress_dialog_size_allocate_cb(GtkWidget *widget,
548                                          GtkAllocation *allocation)
549 {
550         g_return_if_fail(allocation != NULL);
551
552         prefs_common.sendwin_width = allocation->width;
553         prefs_common.sendwin_height = allocation->height;
554 }
555
556 static SendProgressDialog *send_progress_dialog_create(void)
557 {
558         SendProgressDialog *dialog;
559         ProgressDialog *progress;
560         static GdkGeometry geometry;
561
562         dialog = g_new0(SendProgressDialog, 1);
563
564         progress = progress_dialog_create();
565         gtk_window_set_title(GTK_WINDOW(progress->window),
566                              _("Sending message"));
567         g_signal_connect(G_OBJECT(progress->cancel_btn), "clicked",
568                          G_CALLBACK(send_cancel_button_cb), dialog);
569         g_signal_connect(G_OBJECT(progress->window), "delete_event",
570                          G_CALLBACK(gtk_true), NULL);
571         gtk_window_set_modal(GTK_WINDOW(progress->window), TRUE);
572         g_signal_connect(G_OBJECT(progress->window), "size_allocate",
573                          G_CALLBACK(send_progress_dialog_size_allocate_cb), NULL);
574         manage_window_set_transient(GTK_WINDOW(progress->window));
575
576         progress_dialog_get_fraction(progress);
577
578         if (!geometry.min_height) {
579                 geometry.min_width = 460;
580                 geometry.min_height = 250;
581         }
582
583         gtk_window_set_geometry_hints(GTK_WINDOW(progress->window), NULL, &geometry,
584                                       GDK_HINT_MIN_SIZE);
585         gtk_widget_set_size_request(progress->window, prefs_common.sendwin_width,
586                                     prefs_common.sendwin_height);
587
588         if (!prefs_common.send_dialog_invisible) {
589                 gtk_widget_show_now(progress->window);
590         }
591         
592         dialog->dialog = progress;
593
594         return dialog;
595 }
596
597 static void send_progress_dialog_destroy(SendProgressDialog *dialog)
598 {
599         g_return_if_fail(dialog != NULL);
600         if (!prefs_common.send_dialog_invisible) {
601                 progress_dialog_destroy(dialog->dialog);
602         }
603         g_free(dialog);
604 }
605
606 static void send_cancel_button_cb(GtkWidget *widget, gpointer data)
607 {
608         SendProgressDialog *dialog = (SendProgressDialog *)data;
609
610         dialog->cancelled = TRUE;
611 }
612
613 static void send_put_error(Session *session)
614 {
615         gchar *msg;
616         gchar *log_msg = NULL;
617         gchar *err_msg = NULL;
618
619         msg = SMTP_SESSION(session)->error_msg;
620
621         switch (SMTP_SESSION(session)->error_val) {
622         case SM_ERROR:
623         case SM_UNRECOVERABLE:
624                 log_msg = _("Error occurred while sending the message.");
625                 if (msg)
626                         err_msg = g_strdup_printf
627                                 (_("Error occurred while sending the message:\n%s"),
628                                  msg);
629                 else
630                         err_msg = g_strdup(log_msg);
631                 break;
632         case SM_AUTHFAIL:
633                 log_msg = _("Authentication failed.");
634                 if (msg)
635                         err_msg = g_strdup_printf
636                                 (_("Authentication failed:\n%s"), msg);
637                 else
638                         err_msg = g_strdup(log_msg);
639                 break;
640         default:
641                 switch (session->state) {
642                 case SESSION_ERROR:
643                         log_msg =
644                                 _("Error occurred while sending the message.");
645                         err_msg = g_strdup(log_msg);
646                         break;
647                 case SESSION_EOF:
648                         log_msg = _("Connection closed by the remote host.");
649                         err_msg = g_strdup(log_msg);
650                         break;
651                 case SESSION_TIMEOUT:
652                         log_msg = _("Session timed out.");
653                         err_msg = g_strdup(log_msg);
654                         break;
655                 default:
656                         break;
657                 }
658                 break;
659         }
660
661         if (err_msg) {
662                 log_error(LOG_PROTOCOL, "%s\n", err_msg);
663                 g_free(err_msg);
664         } else {
665                 if (log_msg)
666                         log_warning(LOG_PROTOCOL, "%s\n", log_msg);
667         }
668 }
669