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