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 "password.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         gint status;
 149
 150         cm_return_val_if_fail(command != NULL, -1);
 151         cm_return_val_if_fail(fp != NULL, -1);
 152
 153         log_message(LOG_PROTOCOL, _("Sending message using command: %s\n"), command);
 154
 155         argv = strsplit_with_quote(command, " ", 0);
 156
 157         if (g_spawn_async_with_pipes(NULL, argv, NULL,
 158 #ifdef G_OS_WIN32
 159                                      0,
 160 #else
 161                                      G_SPAWN_DO_NOT_REAP_CHILD,
 162 #endif
 163                                      NULL, NULL,
 164                                      &pid, &child_stdin, NULL, NULL,
 165                                      NULL) == FALSE) {
 166                 g_snprintf(buf, sizeof(buf),
 167                            _("Couldn't execute command: %s"), command);
 168                 log_warning(LOG_PROTOCOL, "%s\n", buf);
 169                 alertpanel_error("%s", buf);
 170                 g_strfreev(argv);
 171                 return -1;
 172         }
 173         g_strfreev(argv);
 174
 175         while (fgets(buf, sizeof(buf), fp) != NULL) {
 176                 strretchomp(buf);
 177                 if (buf[0] == '.' && buf[1] == '\0') {
 178                         if (fd_write_all(child_stdin, ".", 1) < 0) {
 179                                 err = TRUE;
 180                                 break;
 181                         }
 182                 }
 183                 if (fd_write_all(child_stdin, buf, strlen(buf)) < 0 ||
 184                     fd_write_all(child_stdin, "\n", 1) < 0) {
 185                         err = TRUE;
 186                         break;
 187                 }
 188         }
 189
 190         fd_close(child_stdin);
 191
 192 #ifndef G_OS_WIN32
 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, but SSL is not available in this "
 285                                   "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 (ac_prefs->smtp_passwd)
 308                                         smtp_session->pass =
 309                                                 password_decrypt(ac_prefs->smtp_passwd, NULL);
 310                                 else {
 311                                         smtp_session->pass =
 312                                                 input_dialog_query_password_keep
 313                                                         (ac_prefs->smtp_server,
 314                                                          smtp_session->user,
 315                                                          &(ac_prefs->session_smtp_passwd));
 316                                         if (!smtp_session->pass) {
 317                                                 session_destroy(session);
 318                                                 return -1;
 319                                         }
 320                                 }
 321                         } else {
 322                                 smtp_session->user = g_strdup(ac_prefs->userid);
 323                                 if (password_get(smtp_session->user,
 324                                                         ac_prefs->smtp_server, "smtp", port,
 325                                                         &(smtp_session->pass))) {
 326                                         /* NOP */;
 327                                 } else if (ac_prefs->passwd)
 328                                         smtp_session->pass = password_decrypt(ac_prefs->passwd, NULL);
 329                                 else {
 330                                         smtp_session->pass =
 331                                                 input_dialog_query_password_keep
 332                                                         (ac_prefs->smtp_server,
 333                                                          smtp_session->user,
 334                                                          &(ac_prefs->session_smtp_passwd));
 335                                         if (!smtp_session->pass) {
 336                                                 session_destroy(session);
 337                                                 return -1;
 338                                         }
 339                                 }
 340                         }
 341                 } else {
 342                         smtp_session->user = NULL;
 343                         smtp_session->pass = NULL;
 344                 }
 345
 346                 send_dialog = send_progress_dialog_create();
 347                 send_dialog->session = session;
 348                 smtp_session->dialog = send_dialog;
 349
 350                 progress_dialog_list_set(send_dialog->dialog, 0, NULL,
 351                                          ac_prefs->smtp_server,
 352                                          _("Connecting"));
 353
 354                 if (ac_prefs->pop_before_smtp
 355                     && (ac_prefs->protocol == A_APOP || ac_prefs->protocol == A_POP3)
 356                     && (time(NULL) - ac_prefs->last_pop_login_time) > (60 * ac_prefs->pop_before_smtp_timeout)) {
 357                         g_snprintf(buf, sizeof(buf), _("Doing POP before SMTP..."));
 358                         log_message(LOG_PROTOCOL, "%s\n", buf);
 359                         progress_dialog_set_label(send_dialog->dialog, buf);
 360                         progress_dialog_list_set_status(send_dialog->dialog, 0, _("POP before SMTP"));
 361                         GTK_EVENTS_FLUSH();
 362                         inc_pop_before_smtp(ac_prefs);
 363                 }
 364
 365                 g_snprintf(buf, sizeof(buf), _("Account '%s': Connecting to SMTP server: %s:%d..."),
 366                                 ac_prefs->account_name, ac_prefs->smtp_server, port);
 367                 progress_dialog_set_label(send_dialog->dialog, buf);
 368                 log_message(LOG_PROTOCOL, "%s\n", buf);
 369
 370                 session_set_recv_message_notify(session, send_recv_message, send_dialog);
 371                 session_set_send_data_progressive_notify
 372                         (session, send_send_data_progressive, send_dialog);
 373                 session_set_send_data_notify(session, send_send_data_finished, send_dialog);
 374
 375         } else {
 376                 /* everything is ready to start at MAIL FROM:, just
 377                  * reinit useful variables.
 378                  */
 379                 session = SESSION(ac_prefs->session);
 380                 ac_prefs->session = NULL;
 381                 smtp_session = SMTP_SESSION(session);
 382                 smtp_session->state = SMTP_HELO;
 383                 send_dialog = (SendProgressDialog *)smtp_session->dialog;
 384                 was_inited = TRUE;
 385         }
 386
 387         /* This has to be initialised for every mail sent */
 388         smtp_session->from = g_strdup(spec_from);
 389         smtp_session->to_list = to_list;
 390         smtp_session->cur_to = to_list;
 391         smtp_session->send_data = (guchar *)get_outgoing_rfc2822_str(fp);
 392         smtp_session->send_data_len = strlen((gchar *)smtp_session->send_data);
 393
 394         session_set_timeout(session,
 395                             prefs_common.io_timeout_secs * 1000);
 396         /* connect if necessary */
 397         if (!was_inited && session_connect(session, ac_prefs->smtp_server, port) < 0) {
 398                 session_destroy(session);
 399                 send_progress_dialog_destroy(send_dialog);
 400                 ac_prefs->session = NULL;
 401                 return -1;
 402         }
 403
 404         debug_print("send_message_smtp(): begin event loop\n");
 405
 406         if (was_inited) {
 407                 /* as the server is quiet, start sending ourselves */
 408                 smtp_from(smtp_session);
 409         }
 410
 411         while (session_is_running(session) && send_dialog->cancelled == FALSE
 412                 && SMTP_SESSION(session)->state != SMTP_MAIL_SENT_OK)
 413                 gtk_main_iteration();
 414
 415         if (SMTP_SESSION(session)->error_val == SM_AUTHFAIL) {
 416                 if (ac_prefs->session_smtp_passwd) {
 417                         g_free(ac_prefs->session_smtp_passwd);
 418                         ac_prefs->session_smtp_passwd = NULL;
 419                 }
 420                 ret = -1;
 421         } else if (SMTP_SESSION(session)->state == SMTP_MAIL_SENT_OK) {
 422                 log_message(LOG_PROTOCOL, "%s\n", _("Mail sent successfully."));
 423                 ret = 0;
 424         } else if (session->state == SESSION_EOF &&
 425                    SMTP_SESSION(session)->state == SMTP_QUIT) {
 426                 /* consider EOF right after QUIT successful */
 427                 log_warning(LOG_PROTOCOL, "%s\n", _("Connection closed by the remote host."));
 428                 ret = 0;
 429         } else if (session->state == SESSION_ERROR ||
 430                    session->state == SESSION_EOF ||
 431                    session->state == SESSION_TIMEOUT ||
 432                    SMTP_SESSION(session)->state == SMTP_ERROR ||
 433                    SMTP_SESSION(session)->error_val != SM_OK)
 434                 ret = -1;
 435         else if (send_dialog->cancelled == TRUE)
 436                 ret = -1;
 437
 438         if (ret == -1) {
 439                 manage_window_focus_in(send_dialog->dialog->window, NULL, NULL);
 440                 send_put_error(session);
 441                 manage_window_focus_out(send_dialog->dialog->window, NULL, NULL);
 442         }
 443
 444         /* if we should close the connection, let's do it.
 445          * Close it in case of error, too, as it helps reinitializing things
 446          * easier.
 447          */
 448         if (!keep_session || ret != 0) {
 449                 if (session_is_connected(session))
 450                         smtp_quit(smtp_session);
 451                 while (session_is_connected(session) && !send_dialog->cancelled)
 452                         gtk_main_iteration();
 453                 session_destroy(session);
 454                 ac_prefs->session = NULL;
 455                 send_progress_dialog_destroy(send_dialog);
 456         } else {
 457                 g_free(smtp_session->from);
 458                 g_free(smtp_session->send_data);
 459                 g_free(smtp_session->error_msg);
 460         }
 461         if (keep_session && ret == 0 && ac_prefs->session == NULL)
 462                 ac_prefs->session = SMTP_SESSION(session);
 463
 464
 465         statuswindow_pop_all();
 466         statusbar_verbosity_set(FALSE);
 467         return ret;
 468 }
 469
 470 gint send_message_smtp(PrefsAccount *ac_prefs, GSList *to_list, FILE *fp)
 471 {
 472         return send_message_smtp_full(ac_prefs, to_list, fp, FALSE);
 473 }
 474
 475 static gint send_recv_message(Session *session, const gchar *msg, gpointer data)
 476 {
 477         gchar buf[BUFFSIZE];
 478         SMTPSession *smtp_session = SMTP_SESSION(session);
 479         SendProgressDialog *dialog = (SendProgressDialog *)data;
 480         gchar *state_str = NULL;
 481
 482         cm_return_val_if_fail(dialog != NULL, -1);
 483
 484         switch (smtp_session->state) {
 485         case SMTP_READY:
 486                 return 0;
 487         case SMTP_HELO:
 488                 g_snprintf(buf, sizeof(buf), _("Sending HELO..."));
 489                 state_str = _("Authenticating");
 490                 statuswindow_print_all(_("Sending message..."));
 491                 break;
 492         case SMTP_EHLO:
 493                 g_snprintf(buf, sizeof(buf), _("Sending EHLO..."));
 494                 state_str = _("Authenticating");
 495                 statuswindow_print_all(_("Sending message..."));
 496                 break;
 497         case SMTP_AUTH:
 498                 g_snprintf(buf, sizeof(buf), _("Authenticating..."));
 499                 state_str = _("Authenticating");
 500                 break;
 501         case SMTP_FROM:
 502                 g_snprintf(buf, sizeof(buf), _("Sending MAIL FROM..."));
 503                 state_str = _("Sending");
 504                 break;
 505         case SMTP_RCPT:
 506                 g_snprintf(buf, sizeof(buf), _("Sending RCPT TO..."));
 507                 state_str = _("Sending");
 508                 break;
 509         case SMTP_DATA:
 510         case SMTP_EOM:
 511                 g_snprintf(buf, sizeof(buf), _("Sending DATA..."));
 512                 state_str = _("Sending");
 513                 break;
 514         case SMTP_QUIT:
 515                 g_snprintf(buf, sizeof(buf), _("Quitting..."));
 516                 state_str = _("Quitting");
 517                 break;
 518         case SMTP_ERROR:
 519                 g_warning("send: error: %s", msg);
 520                 return 0;
 521         default:
 522                 return 0;
 523         }
 524
 525         progress_dialog_set_label(dialog->dialog, buf);
 526         progress_dialog_list_set_status(dialog->dialog, 0, state_str);
 527
 528         return 0;
 529 }
 530
 531 static gint send_send_data_progressive(Session *session, guint cur_len,
 532                                        guint total_len, gpointer data)
 533 {
 534         gchar buf[BUFFSIZE];
 535         SendProgressDialog *dialog = (SendProgressDialog *)data;
 536         MainWindow *mainwin = mainwindow_get_mainwindow();
 537
 538         cm_return_val_if_fail(dialog != NULL, -1);
 539
 540         if (SMTP_SESSION(session)->state != SMTP_SEND_DATA &&
 541             SMTP_SESSION(session)->state != SMTP_EOM)
 542                 return 0;
 543
 544         g_snprintf(buf, sizeof(buf), _("Sending message (%d / %d bytes)"),
 545                    cur_len, total_len);
 546         progress_dialog_set_label(dialog->dialog, buf);
 547         progress_dialog_set_fraction
 548                 (dialog->dialog, (total_len == 0) ? 0 : (gfloat)cur_len / (gfloat)total_len);
 549
 550         if (mainwin) {
 551                 if (!gtk_widget_get_visible(mainwin->progressbar))
 552                         gtk_widget_show(mainwin->progressbar);
 553                 gtk_progress_bar_set_fraction
 554                         (GTK_PROGRESS_BAR(mainwin->progressbar),
 555                          (total_len == 0) ? 0 : (gfloat)cur_len / (gfloat)total_len);
 556         }
 557
 558         return 0;
 559 }
 560
 561 static gint send_send_data_finished(Session *session, guint len, gpointer data)
 562 {
 563         SendProgressDialog *dialog = (SendProgressDialog *)data;
 564         MainWindow *mainwin = mainwindow_get_mainwindow();
 565
 566         cm_return_val_if_fail(dialog != NULL, -1);
 567
 568         send_send_data_progressive(session, len, len, dialog);
 569         if (mainwin) {
 570                 gtk_widget_hide(mainwin->progressbar);
 571                 gtk_progress_bar_set_fraction
 572                         (GTK_PROGRESS_BAR(mainwin->progressbar),(gfloat)0);
 573         }
 574
 575         return 0;
 576 }
 577
 578 static void send_progress_dialog_size_allocate_cb(GtkWidget *widget,
 579                                          GtkAllocation *allocation)
 580 {
 581         cm_return_if_fail(allocation != NULL);
 582
 583         prefs_common.sendwin_width = allocation->width;
 584         prefs_common.sendwin_height = allocation->height;
 585 }
 586
 587 static SendProgressDialog *send_progress_dialog_create(void)
 588 {
 589         SendProgressDialog *dialog;
 590         ProgressDialog *progress;
 591         static GdkGeometry geometry;
 592
 593         dialog = g_new0(SendProgressDialog, 1);
 594
 595         progress = progress_dialog_create();
 596         gtk_window_set_title(GTK_WINDOW(progress->window),
 597                              _("Sending message"));
 598         g_signal_connect(G_OBJECT(progress->showlog_btn), "clicked",
 599                          G_CALLBACK(send_showlog_button_cb), dialog);
 600         g_signal_connect(G_OBJECT(progress->cancel_btn), "clicked",
 601                          G_CALLBACK(send_cancel_button_cb), dialog);
 602         g_signal_connect(G_OBJECT(progress->window), "delete_event",
 603                          G_CALLBACK(gtk_true), NULL);
 604         gtk_window_set_modal(GTK_WINDOW(progress->window), TRUE);
 605         g_signal_connect(G_OBJECT(progress->window), "size_allocate",
 606                          G_CALLBACK(send_progress_dialog_size_allocate_cb), NULL);
 607         manage_window_set_transient(GTK_WINDOW(progress->window));
 608
 609         progress_dialog_get_fraction(progress);
 610
 611         if (!geometry.min_height) {
 612                 geometry.min_width = 460;
 613                 geometry.min_height = 250;
 614         }
 615
 616         gtk_window_set_geometry_hints(GTK_WINDOW(progress->window), NULL, &geometry,
 617                                       GDK_HINT_MIN_SIZE);
 618         gtk_widget_set_size_request(progress->window, prefs_common.sendwin_width,
 619                                     prefs_common.sendwin_height);
 620
 621         if (!prefs_common.send_dialog_invisible) {
 622                 gtk_widget_show_now(progress->window);
 623         }
 624
 625         dialog->dialog = progress;
 626
 627         return dialog;
 628 }
 629
 630 static void send_progress_dialog_destroy(SendProgressDialog *dialog)
 631 {
 632         cm_return_if_fail(dialog != NULL);
 633         if (!prefs_common.send_dialog_invisible) {
 634                 progress_dialog_destroy(dialog->dialog);
 635         }
 636         g_free(dialog);
 637         send_dialog = NULL;
 638 }
 639
 640 static void send_showlog_button_cb(GtkWidget *widget, gpointer data)
 641 {
 642         MainWindow *mainwin = mainwindow_get_mainwindow();
 643
 644         log_window_show(mainwin->logwin);
 645 }
 646
 647 static void send_cancel_button_cb(GtkWidget *widget, gpointer data)
 648 {
 649         SendProgressDialog *dialog = (SendProgressDialog *)data;
 650         statusbar_progress_all(0,0,0);
 651
 652         dialog->cancelled = TRUE;
 653 }
 654
 655 static void send_put_error(Session *session)
 656 {
 657         gchar *msg;
 658         gchar *log_msg = NULL;
 659         gchar *err_msg = NULL;
 660
 661         msg = SMTP_SESSION(session)->error_msg;
 662
 663         switch (SMTP_SESSION(session)->error_val) {
 664         case SM_ERROR:
 665         case SM_UNRECOVERABLE:
 666                 log_msg = _("Error occurred while sending the message.");
 667                 if (msg)
 668                         err_msg = g_strdup_printf
 669                                 (_("Error occurred while sending the message:\n%s"),
 670                                  msg);
 671                 else
 672                         err_msg = g_strdup(log_msg);
 673                 break;
 674         case SM_AUTHFAIL:
 675                 log_msg = _("Authentication failed.");
 676                 if (msg)
 677                         err_msg = g_strdup_printf
 678                                 (_("Authentication failed:\n%s"), msg);
 679                 else
 680                         err_msg = g_strdup(log_msg);
 681                 break;
 682         default:
 683                 switch (session->state) {
 684                 case SESSION_ERROR:
 685                         log_msg =
 686                                 _("Error occurred while sending the message.");
 687                         err_msg = g_strdup(log_msg);
 688                         break;
 689                 case SESSION_EOF:
 690                         log_msg = _("Connection closed by the remote host.");
 691                         err_msg = g_strdup(log_msg);
 692                         break;
 693                 case SESSION_TIMEOUT:
 694                         log_msg = _("Session timed out. You may be able to "
 695                                     "recover by increasing the timeout value in "
 696                                     "Preferences/Other/Miscellaneous.");
 697                         err_msg = g_strdup(log_msg);
 698                         break;
 699                 default:
 700                         break;
 701                 }
 702                 break;
 703         }
 704
 705         if (err_msg) {
 706                 log_error(LOG_PROTOCOL, "%s\n", err_msg);
 707                 g_free(err_msg);
 708         } else {
 709                 if (log_msg)
 710                         log_warning(LOG_PROTOCOL, "%s\n", log_msg);
 711         }
 712 }
 713