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