Fix more compile warnings for Windows in socket.c.
[claws.git] / src / send_message.c
1 /*
2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3  * Copyright (C) 1999-2012 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 #include "claws-features.h"
23 #endif
24
25 #include "defs.h"
26
27 #include <glib.h>
28 #include <glib/gi18n.h>
29 #include <gtk/gtk.h>
30 #include <stdio.h>
31 #include <string.h>
32 #include <signal.h>
33 #include <sys/types.h>
34 #ifndef G_OS_WIN32
35 #include <sys/wait.h>
36 #endif
37
38 #include "send_message.h"
39 #include "session.h"
40 #include "ssl.h"
41 #include "smtp.h"
42 #include "prefs_common.h"
43 #include "prefs_account.h"
44 #include "procheader.h"
45 #include "account.h"
46 #include "progressdialog.h"
47 #include "statusbar.h"
48 #include "inputdialog.h"
49 #include "alertpanel.h"
50 #include "manage_window.h"
51 #include "logwindow.h"
52 #include "socket.h"
53 #include "utils.h"
54 #include "gtkutils.h"
55 #include "inc.h"
56 #include "log.h"
57 #include "passwordstore.h"
58
59 typedef struct _SendProgressDialog      SendProgressDialog;
60
61 struct _SendProgressDialog
62 {
63         ProgressDialog *dialog;
64         Session *session;
65         gboolean cancelled;
66 };
67
68 static SendProgressDialog *send_dialog = NULL;
69
70 static gint send_recv_message           (Session                *session,
71                                          const gchar            *msg,
72                                          gpointer                data);
73 static gint send_send_data_progressive  (Session                *session,
74                                          guint                   cur_len,
75                                          guint                   total_len,
76                                          gpointer                data);
77 static gint send_send_data_finished     (Session                *session,
78                                          guint                   len,
79                                          gpointer                data);
80
81 static SendProgressDialog *send_progress_dialog_create(void);
82 static void send_progress_dialog_destroy(SendProgressDialog *dialog);
83
84 static void send_showlog_button_cb      (GtkWidget      *widget,
85                                          gpointer        data);
86 static void send_cancel_button_cb       (GtkWidget      *widget,
87                                          gpointer        data);
88
89 static void send_put_error              (Session        *session);
90
91
92 void send_cancel(void)
93 {
94         if (send_dialog)
95                 send_cancel_button_cb(NULL, send_dialog);
96 }
97
98 gboolean send_is_active(void)
99 {
100         return (send_dialog != NULL);
101 }
102
103 gint send_message(const gchar *file, PrefsAccount *ac_prefs, GSList *to_list)
104 {
105         FILE *fp;
106         gint val;
107
108         cm_return_val_if_fail(file != NULL, -1);
109         cm_return_val_if_fail(ac_prefs != NULL, -1);
110         cm_return_val_if_fail(to_list != NULL, -1);
111
112         if ((fp = g_fopen(file, "rb")) == NULL) {
113                 FILE_OP_ERROR(file, "fopen");
114                 return -1;
115         }
116
117         inc_lock();
118         if (ac_prefs->use_mail_command && ac_prefs->mail_command &&
119             (*ac_prefs->mail_command)) {
120                 val = send_message_local(ac_prefs->mail_command, fp);
121                 fclose(fp);
122                 inc_unlock();
123                 return val;
124         } else {
125                 val = send_message_smtp(ac_prefs, to_list, fp);
126                 
127                 fclose(fp);
128                 inc_unlock();
129                 return val;
130         }
131 }
132
133 enum
134 {
135         Q_SENDER     = 0,
136         Q_SMTPSERVER = 1,
137         Q_RECIPIENTS = 2,
138         Q_ACCOUNT_ID = 3
139 };
140
141 gint send_message_local(const gchar *command, FILE *fp)
142 {
143         gchar **argv;
144         GPid pid;
145         gint child_stdin;
146         gchar buf[BUFFSIZE];
147         gboolean err = FALSE;
148
149         cm_return_val_if_fail(command != NULL, -1);
150         cm_return_val_if_fail(fp != NULL, -1);
151
152         log_message(LOG_PROTOCOL, _("Sending message using command: %s\n"), command);
153
154         argv = strsplit_with_quote(command, " ", 0);
155
156         if (g_spawn_async_with_pipes(NULL, argv, NULL,
157 #ifdef G_OS_WIN32
158                                      0,
159 #else
160                                      G_SPAWN_DO_NOT_REAP_CHILD,
161 #endif
162                                      NULL, NULL,
163                                      &pid, &child_stdin, NULL, NULL,
164                                      NULL) == FALSE) {
165                 g_snprintf(buf, sizeof(buf),
166                            _("Couldn't execute command: %s"), command);
167                 log_warning(LOG_PROTOCOL, "%s\n", buf);
168                 alertpanel_error("%s", buf);
169                 g_strfreev(argv);
170                 return -1;
171         }
172         g_strfreev(argv);
173
174         while (fgets(buf, sizeof(buf), fp) != NULL) {
175                 strretchomp(buf);
176                 if (buf[0] == '.' && buf[1] == '\0') {
177                         if (fd_write_all(child_stdin, ".", 1) < 0) {
178                                 err = TRUE;
179                                 break;
180                         }
181                 }
182                 if (fd_write_all(child_stdin, buf, strlen(buf)) < 0 ||
183                     fd_write_all(child_stdin, "\n", 1) < 0) {
184                         err = TRUE;
185                         break;
186                 }
187         }
188
189         fd_close(child_stdin);
190
191 #ifndef G_OS_WIN32
192         gint status;
193         waitpid(pid, &status, 0);
194         if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
195                 err = TRUE;
196 #endif
197
198         g_spawn_close_pid(pid);
199
200         if (err) {
201                 g_snprintf(buf, sizeof(buf),
202                            _("Error occurred while executing command: %s"),
203                            command);
204                 log_warning(LOG_PROTOCOL, "%s\n", buf);
205                 alertpanel_error("%s", buf);
206                 return -1;
207         }
208
209         return 0;
210 }
211
212 gint send_message_smtp_full(PrefsAccount *ac_prefs, GSList *to_list, FILE *fp, gboolean keep_session)
213 {
214         Session *session;
215         SMTPSession *smtp_session;
216         gushort port = 0;
217         gchar buf[BUFFSIZE];
218         gint ret = 0;
219         gboolean was_inited = FALSE;
220         MsgInfo *tmp_msginfo = NULL;
221         MsgFlags flags = {0, 0};
222         long fp_pos = 0;
223         gchar spec_from[BUFFSIZE];
224
225         cm_return_val_if_fail(ac_prefs != NULL, -1);
226         cm_return_val_if_fail(ac_prefs->address != NULL, -1);
227         cm_return_val_if_fail(ac_prefs->smtp_server != NULL, -1);
228         cm_return_val_if_fail(to_list != NULL, -1);
229         cm_return_val_if_fail(fp != NULL, -1);
230
231         /* get the From address used, not necessarily the ac_prefs',
232          * because it's editable. */
233
234         fp_pos = ftell(fp);
235         if (fp_pos < 0) {
236                 perror("ftell");
237                 return -1;
238         }
239         tmp_msginfo = procheader_parse_stream(fp, flags, TRUE, FALSE);
240         if (fseek(fp, fp_pos, SEEK_SET) < 0) {
241                 perror("fseek");
242                 return -1;
243         }
244
245         if (tmp_msginfo && tmp_msginfo->extradata && tmp_msginfo->extradata->resent_from) {
246                 strncpy2(spec_from, tmp_msginfo->extradata->resent_from, BUFFSIZE-1);
247                 extract_address(spec_from);
248         } else if (tmp_msginfo && tmp_msginfo->from) {
249                 strncpy2(spec_from, tmp_msginfo->from, BUFFSIZE-1);
250                 extract_address(spec_from);
251         } else {
252                 strncpy2(spec_from, ac_prefs->address, BUFFSIZE-1);
253         }
254         if (tmp_msginfo) {
255                 procmsg_msginfo_free(&tmp_msginfo);
256         }
257
258         if (!ac_prefs->session) {
259                 /* we can't reuse a previously initialised session */
260                 session = smtp_session_new(ac_prefs);
261                 session->ssl_cert_auto_accept = ac_prefs->ssl_certs_auto_accept;
262
263                 smtp_session = SMTP_SESSION(session);
264
265                 if (ac_prefs->set_domain && ac_prefs->domain && strlen(ac_prefs->domain)) {
266                         smtp_session->hostname = g_strdup(ac_prefs->domain);
267                 } else {
268                         smtp_session->hostname = NULL;
269                 }
270
271 #ifdef USE_GNUTLS
272                 port = ac_prefs->set_smtpport ? ac_prefs->smtpport :
273                         ac_prefs->ssl_smtp == SSL_TUNNEL ? SSMTP_PORT : SMTP_PORT;
274                 session->ssl_type = ac_prefs->ssl_smtp;
275                 if (ac_prefs->ssl_smtp != SSL_NONE)
276                         session->nonblocking = ac_prefs->use_nonblocking_ssl;
277                 if (ac_prefs->set_gnutls_priority && ac_prefs->gnutls_priority &&
278                     strlen(ac_prefs->gnutls_priority))
279                         session->gnutls_priority = g_strdup(ac_prefs->gnutls_priority);
280 #else
281                 if (ac_prefs->ssl_smtp != SSL_NONE) {
282                         if (alertpanel_full(_("Insecure connection"),
283                                 _("This connection is configured to be secured "
284                                   "using SSL/TLS, but SSL/TLS is not available "
285                                   "in this build of Claws Mail. \n\n"
286                                   "Do you want to continue connecting to this "
287                                   "server? The communication would not be "
288                                   "secure."),
289                                   GTK_STOCK_CANCEL, _("Con_tinue connecting"),
290                                   NULL, FALSE, NULL, ALERT_WARNING,
291                                   G_ALERTDEFAULT) != G_ALERTALTERNATE) {
292                                 session_destroy(session);
293                                 return -1;
294                         }
295                 }
296                 port = ac_prefs->set_smtpport ? ac_prefs->smtpport : SMTP_PORT;
297 #endif
298
299                 if (ac_prefs->use_smtp_auth) {
300                         smtp_session->forced_auth_type = ac_prefs->smtp_auth_type;
301                         if (ac_prefs->smtp_userid && strlen(ac_prefs->smtp_userid)) {
302                                 smtp_session->user = g_strdup(ac_prefs->smtp_userid);
303                                 if (password_get(smtp_session->user,
304                                                         ac_prefs->smtp_server, "smtp", port,
305                                                         &(smtp_session->pass))) {
306                                         /* NOP */;
307                                 } else if ((smtp_session->pass =
308                                                 passwd_store_get_account(ac_prefs->account_id,
309                                                                 PWS_ACCOUNT_SEND)) == NULL) {
310                                         smtp_session->pass =
311                                                 input_dialog_query_password_keep
312                                                         (ac_prefs->smtp_server,
313                                                          smtp_session->user,
314                                                          &(ac_prefs->session_smtp_passwd));
315                                         if (!smtp_session->pass) {
316                                                 session_destroy(session);
317                                                 return -1;
318                                         }
319                                 }
320                         } else {
321                                 smtp_session->user = g_strdup(ac_prefs->userid);
322                                 if (password_get(smtp_session->user,
323                                                         ac_prefs->smtp_server, "smtp", port,
324                                                         &(smtp_session->pass))) {
325                                         /* NOP */;
326                                 } else if ((smtp_session->pass = passwd_store_get_account(
327                                                         ac_prefs->account_id, PWS_ACCOUNT_RECV)) == NULL) {
328                                         smtp_session->pass =
329                                                 input_dialog_query_password_keep
330                                                         (ac_prefs->smtp_server,
331                                                          smtp_session->user,
332                                                          &(ac_prefs->session_smtp_passwd));
333                                         if (!smtp_session->pass) {
334                                                 session_destroy(session);
335                                                 return -1;
336                                         }
337                                 }
338                         }
339                 } else {
340                         smtp_session->user = NULL;
341                         smtp_session->pass = NULL;
342                 }
343
344                 send_dialog = send_progress_dialog_create();
345                 send_dialog->session = session;
346                 smtp_session->dialog = send_dialog;
347
348                 progress_dialog_list_set(send_dialog->dialog, 0, NULL, 
349                                          ac_prefs->smtp_server, 
350                                          _("Connecting"));
351
352                 if (ac_prefs->pop_before_smtp
353                     && (ac_prefs->protocol == A_POP3)
354                     && (time(NULL) - ac_prefs->last_pop_login_time) > (60 * ac_prefs->pop_before_smtp_timeout)) {
355                         g_snprintf(buf, sizeof(buf), _("Doing POP before SMTP..."));
356                         log_message(LOG_PROTOCOL, "%s\n", buf);
357                         progress_dialog_set_label(send_dialog->dialog, buf);
358                         progress_dialog_list_set_status(send_dialog->dialog, 0, _("POP before SMTP"));
359                         GTK_EVENTS_FLUSH();
360                         inc_pop_before_smtp(ac_prefs);
361                 }
362
363                 g_snprintf(buf, sizeof(buf), _("Account '%s': Connecting to SMTP server: %s:%d..."),
364                                 ac_prefs->account_name, ac_prefs->smtp_server, port);
365                 progress_dialog_set_label(send_dialog->dialog, buf);
366                 log_message(LOG_PROTOCOL, "%s\n", buf);
367
368                 session_set_recv_message_notify(session, send_recv_message, send_dialog);
369                 session_set_send_data_progressive_notify
370                         (session, send_send_data_progressive, send_dialog);
371                 session_set_send_data_notify(session, send_send_data_finished, send_dialog);
372
373         } else {
374                 /* everything is ready to start at MAIL FROM:, just
375                  * reinit useful variables. 
376                  */
377                 session = SESSION(ac_prefs->session);
378                 ac_prefs->session = NULL;
379                 smtp_session = SMTP_SESSION(session);
380                 smtp_session->state = SMTP_HELO;
381                 send_dialog = (SendProgressDialog *)smtp_session->dialog;
382                 was_inited = TRUE;
383         }
384
385         /* This has to be initialised for every mail sent */
386         smtp_session->from = g_strdup(spec_from);
387         smtp_session->to_list = to_list;
388         smtp_session->cur_to = to_list;
389         smtp_session->send_data = (guchar *)get_outgoing_rfc2822_str(fp);
390         smtp_session->send_data_len = strlen((gchar *)smtp_session->send_data);
391
392         session_set_timeout(session,
393                             prefs_common.io_timeout_secs * 1000);
394         /* connect if necessary */
395         if (!was_inited && session_connect(session, ac_prefs->smtp_server, port) < 0) {
396                 session_destroy(session);
397                 send_progress_dialog_destroy(send_dialog);
398                 ac_prefs->session = NULL;
399                 return -1;
400         }
401
402         debug_print("send_message_smtp(): begin event loop\n");
403
404         if (was_inited) {
405                 /* as the server is quiet, start sending ourselves */
406                 smtp_from(smtp_session);
407         }
408
409         while (session_is_running(session) && send_dialog->cancelled == FALSE
410                 && SMTP_SESSION(session)->state != SMTP_MAIL_SENT_OK)
411                 gtk_main_iteration();
412
413         if (SMTP_SESSION(session)->error_val == SM_AUTHFAIL) {
414                 if (ac_prefs->session_smtp_passwd) {
415                         g_free(ac_prefs->session_smtp_passwd);
416                         ac_prefs->session_smtp_passwd = NULL;
417                 }
418                 ret = -1;
419         } else if (SMTP_SESSION(session)->state == SMTP_MAIL_SENT_OK) {
420                 log_message(LOG_PROTOCOL, "%s\n", _("Mail sent successfully."));
421                 ret = 0;
422         } else if (session->state == SESSION_EOF &&
423                    SMTP_SESSION(session)->state == SMTP_QUIT) {
424                 /* consider EOF right after QUIT successful */
425                 log_warning(LOG_PROTOCOL, "%s\n", _("Connection closed by the remote host."));
426                 ret = 0;
427         } else if (session->state == SESSION_ERROR ||
428                    session->state == SESSION_EOF ||
429                    session->state == SESSION_TIMEOUT ||
430                    SMTP_SESSION(session)->state == SMTP_ERROR ||
431                    SMTP_SESSION(session)->error_val != SM_OK)
432                 ret = -1;
433         else if (send_dialog->cancelled == TRUE)
434                 ret = -1;
435
436         if (ret == -1) {
437                 manage_window_focus_in(send_dialog->dialog->window, NULL, NULL);
438                 send_put_error(session);
439                 manage_window_focus_out(send_dialog->dialog->window, NULL, NULL);
440         }
441
442         /* if we should close the connection, let's do it.
443          * Close it in case of error, too, as it helps reinitializing things
444          * easier.
445          */
446         if (!keep_session || ret != 0) {
447                 if (session_is_connected(session))
448                         smtp_quit(smtp_session);
449                 while (session_is_connected(session) && !send_dialog->cancelled)
450                         gtk_main_iteration();
451                 session_destroy(session);
452                 ac_prefs->session = NULL;
453                 send_progress_dialog_destroy(send_dialog);
454         } else {
455                 g_free(smtp_session->from);
456                 g_free(smtp_session->send_data);
457                 g_free(smtp_session->error_msg);
458         }
459         if (keep_session && ret == 0 && ac_prefs->session == NULL)
460                 ac_prefs->session = SMTP_SESSION(session);
461
462
463         statuswindow_pop_all();
464         statusbar_verbosity_set(FALSE);
465         return ret;
466 }
467
468 gint send_message_smtp(PrefsAccount *ac_prefs, GSList *to_list, FILE *fp)
469 {
470         return send_message_smtp_full(ac_prefs, to_list, fp, FALSE);
471 }
472
473 static gint send_recv_message(Session *session, const gchar *msg, gpointer data)
474 {
475         gchar buf[BUFFSIZE];
476         SMTPSession *smtp_session = SMTP_SESSION(session);
477         SendProgressDialog *dialog = (SendProgressDialog *)data;
478         gchar *state_str = NULL;
479
480         cm_return_val_if_fail(dialog != NULL, -1);
481
482         switch (smtp_session->state) {
483         case SMTP_READY:
484                 return 0;
485         case SMTP_HELO:
486                 g_snprintf(buf, sizeof(buf), _("Sending HELO..."));
487                 state_str = _("Authenticating");
488                 statuswindow_print_all(_("Sending message..."));
489                 break;
490         case SMTP_EHLO:
491                 g_snprintf(buf, sizeof(buf), _("Sending EHLO..."));
492                 state_str = _("Authenticating");
493                 statuswindow_print_all(_("Sending message..."));
494                 break;
495         case SMTP_AUTH:
496                 g_snprintf(buf, sizeof(buf), _("Authenticating..."));
497                 state_str = _("Authenticating");
498                 break;
499         case SMTP_FROM:
500                 g_snprintf(buf, sizeof(buf), _("Sending MAIL FROM..."));
501                 state_str = _("Sending");
502                 break;
503         case SMTP_RCPT:
504                 g_snprintf(buf, sizeof(buf), _("Sending RCPT TO..."));
505                 state_str = _("Sending");
506                 break;
507         case SMTP_DATA:
508         case SMTP_EOM:
509                 g_snprintf(buf, sizeof(buf), _("Sending DATA..."));
510                 state_str = _("Sending");
511                 break;
512         case SMTP_QUIT:
513                 g_snprintf(buf, sizeof(buf), _("Quitting..."));
514                 state_str = _("Quitting");
515                 break;
516         case SMTP_ERROR:
517                 g_warning("send: error: %s", msg);
518                 return 0;
519         default:
520                 return 0;
521         }
522
523         progress_dialog_set_label(dialog->dialog, buf);
524         progress_dialog_list_set_status(dialog->dialog, 0, state_str);
525
526         return 0;
527 }
528
529 static gint send_send_data_progressive(Session *session, guint cur_len,
530                                        guint total_len, gpointer data)
531 {
532         gchar buf[BUFFSIZE];
533         SendProgressDialog *dialog = (SendProgressDialog *)data;
534         MainWindow *mainwin = mainwindow_get_mainwindow();
535         
536         cm_return_val_if_fail(dialog != NULL, -1);
537
538         if (SMTP_SESSION(session)->state != SMTP_SEND_DATA &&
539             SMTP_SESSION(session)->state != SMTP_EOM)
540                 return 0;
541
542         g_snprintf(buf, sizeof(buf), _("Sending message (%d / %d bytes)"),
543                    cur_len, total_len);
544         progress_dialog_set_label(dialog->dialog, buf);
545         progress_dialog_set_fraction
546                 (dialog->dialog, (total_len == 0) ? 0 : (gfloat)cur_len / (gfloat)total_len);
547
548         if (mainwin) {
549                 if (!gtk_widget_get_visible(mainwin->progressbar))      
550                         gtk_widget_show(mainwin->progressbar);
551                 gtk_progress_bar_set_fraction
552                         (GTK_PROGRESS_BAR(mainwin->progressbar),
553                          (total_len == 0) ? 0 : (gfloat)cur_len / (gfloat)total_len);
554         }
555
556         return 0;
557 }
558
559 static gint send_send_data_finished(Session *session, guint len, gpointer data)
560 {
561         SendProgressDialog *dialog = (SendProgressDialog *)data;
562         MainWindow *mainwin = mainwindow_get_mainwindow();
563
564         cm_return_val_if_fail(dialog != NULL, -1);
565
566         send_send_data_progressive(session, len, len, dialog);
567         if (mainwin) {
568                 gtk_widget_hide(mainwin->progressbar);
569                 gtk_progress_bar_set_fraction
570                         (GTK_PROGRESS_BAR(mainwin->progressbar),(gfloat)0);
571         }
572
573         return 0;
574 }
575
576 static void send_progress_dialog_size_allocate_cb(GtkWidget *widget,
577                                          GtkAllocation *allocation)
578 {
579         cm_return_if_fail(allocation != NULL);
580
581         prefs_common.sendwin_width = allocation->width;
582         prefs_common.sendwin_height = allocation->height;
583 }
584
585 static SendProgressDialog *send_progress_dialog_create(void)
586 {
587         SendProgressDialog *dialog;
588         ProgressDialog *progress;
589         static GdkGeometry geometry;
590
591         dialog = g_new0(SendProgressDialog, 1);
592
593         progress = progress_dialog_create();
594         gtk_window_set_title(GTK_WINDOW(progress->window),
595                              _("Sending message"));
596         g_signal_connect(G_OBJECT(progress->showlog_btn), "clicked",
597                          G_CALLBACK(send_showlog_button_cb), dialog);
598         g_signal_connect(G_OBJECT(progress->cancel_btn), "clicked",
599                          G_CALLBACK(send_cancel_button_cb), dialog);
600         g_signal_connect(G_OBJECT(progress->window), "delete_event",
601                          G_CALLBACK(gtk_true), NULL);
602         gtk_window_set_modal(GTK_WINDOW(progress->window), TRUE);
603         g_signal_connect(G_OBJECT(progress->window), "size_allocate",
604                          G_CALLBACK(send_progress_dialog_size_allocate_cb), NULL);
605         manage_window_set_transient(GTK_WINDOW(progress->window));
606
607         progress_dialog_get_fraction(progress);
608
609         if (!geometry.min_height) {
610                 geometry.min_width = 460;
611                 geometry.min_height = 250;
612         }
613
614         gtk_window_set_geometry_hints(GTK_WINDOW(progress->window), NULL, &geometry,
615                                       GDK_HINT_MIN_SIZE);
616         gtk_widget_set_size_request(progress->window, prefs_common.sendwin_width,
617                                     prefs_common.sendwin_height);
618
619         if (!prefs_common.send_dialog_invisible) {
620                 gtk_widget_show_now(progress->window);
621         }
622         
623         dialog->dialog = progress;
624
625         return dialog;
626 }
627
628 static void send_progress_dialog_destroy(SendProgressDialog *dialog)
629 {
630         cm_return_if_fail(dialog != NULL);
631         if (!prefs_common.send_dialog_invisible) {
632                 progress_dialog_destroy(dialog->dialog);
633         }
634         g_free(dialog);
635         send_dialog = NULL;
636 }
637
638 static void send_showlog_button_cb(GtkWidget *widget, gpointer data)
639 {
640         MainWindow *mainwin = mainwindow_get_mainwindow();
641
642         log_window_show(mainwin->logwin);
643 }
644
645 static void send_cancel_button_cb(GtkWidget *widget, gpointer data)
646 {
647         SendProgressDialog *dialog = (SendProgressDialog *)data;
648         statusbar_progress_all(0,0,0);
649
650         dialog->cancelled = TRUE;
651 }
652
653 static void send_put_error(Session *session)
654 {
655         gchar *msg;
656         gchar *log_msg = NULL;
657         gchar *err_msg = NULL;
658
659         msg = SMTP_SESSION(session)->error_msg;
660
661         switch (SMTP_SESSION(session)->error_val) {
662         case SM_ERROR:
663         case SM_UNRECOVERABLE:
664                 log_msg = _("Error occurred while sending the message.");
665                 if (msg)
666                         err_msg = g_strdup_printf
667                                 (_("Error occurred while sending the message:\n%s"),
668                                  msg);
669                 else
670                         err_msg = g_strdup(log_msg);
671                 break;
672         case SM_AUTHFAIL:
673                 log_msg = _("Authentication failed.");
674                 if (msg)
675                         err_msg = g_strdup_printf
676                                 (_("Authentication failed:\n%s"), msg);
677                 else
678                         err_msg = g_strdup(log_msg);
679                 break;
680         default:
681                 switch (session->state) {
682                 case SESSION_ERROR:
683                         log_msg =
684                                 _("Error occurred while sending the message.");
685                         err_msg = g_strdup(log_msg);
686                         break;
687                 case SESSION_EOF:
688                         log_msg = _("Connection closed by the remote host.");
689                         err_msg = g_strdup(log_msg);
690                         break;
691                 case SESSION_TIMEOUT:
692                         log_msg = _("Session timed out. You may be able to "
693                                     "recover by increasing the timeout value in "
694                                     "Preferences/Other/Miscellaneous.");
695                         err_msg = g_strdup(log_msg);
696                         break;
697                 default:
698                         break;
699                 }
700                 break;
701         }
702
703         if (err_msg) {
704                 log_error(LOG_PROTOCOL, "%s\n", err_msg);
705                 g_free(err_msg);
706         } else {
707                 if (log_msg)
708                         log_warning(LOG_PROTOCOL, "%s\n", log_msg);
709         }
710 }
711