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(ac_prefs);
 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 (defined(USE_OPENSSL) || defined (USE_GNUTLS))
 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, "%s\n", 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         statuswindow_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                 statuswindow_print_all(_("Sending message..."));
 465                 break;
 466         case SMTP_EHLO:
 467                 g_snprintf(buf, sizeof(buf), _("Sending EHLO..."));
 468                 state_str = _("Authenticating");
 469                 statuswindow_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. You may be able to "
 653                                     "recover by increasing the timeout value in "
 654                                     "Preferences/Other.");
 655                         err_msg = g_strdup(log_msg);
 656                         break;
 657                 default:
 658                         break;
 659                 }
 660                 break;
 661         }
 662
 663         if (err_msg) {
 664                 log_error(LOG_PROTOCOL, "%s\n", err_msg);
 665                 g_free(err_msg);
 666         } else {
 667                 if (log_msg)
 668                         log_warning(LOG_PROTOCOL, "%s\n", log_msg);
 669         }
 670 }
 671