src/send_message.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2021 the Claws Mail team and Hiroyuki Yamamoto
   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 "proxy.h"
  53 #include "socket.h"
  54 #include "utils.h"
  55 #include "gtkutils.h"
  56 #include "inc.h"
  57 #include "log.h"
  58 #include "passwordstore.h"
  59 #include "file-utils.h"
  60 #include "oauth2.h"
  61
  62 typedef struct _SendProgressDialog      SendProgressDialog;
  63
  64 struct _SendProgressDialog
  65 {
  66         ProgressDialog *dialog;
  67         Session *session;
  68         gboolean cancelled;
  69 };
  70
  71 static SendProgressDialog *send_dialog = NULL;
  72
  73 static gint send_recv_message           (Session                *session,
  74                                          const gchar            *msg,
  75                                          gpointer                data);
  76 static gint send_send_data_progressive  (Session                *session,
  77                                          guint                   cur_len,
  78                                          guint                   total_len,
  79                                          gpointer                data);
  80 static gint send_send_data_finished     (Session                *session,
  81                                          guint                   len,
  82                                          gpointer                data);
  83
  84 static SendProgressDialog *send_progress_dialog_create(void);
  85 static void send_progress_dialog_destroy(SendProgressDialog *dialog);
  86
  87 static void send_showlog_button_cb      (GtkWidget      *widget,
  88                                          gpointer        data);
  89 static void send_cancel_button_cb       (GtkWidget      *widget,
  90                                          gpointer        data);
  91
  92 static void send_put_error              (Session        *session);
  93
  94
  95 void send_cancel(void)
  96 {
  97         if (send_dialog)
  98                 send_cancel_button_cb(NULL, send_dialog);
  99 }
 100
 101 gboolean send_is_active(void)
 102 {
 103         return (send_dialog != NULL);
 104 }
 105
 106 gint send_message(const gchar *file, PrefsAccount *ac_prefs, GSList *to_list)
 107 {
 108         FILE *fp;
 109         gint val;
 110
 111         cm_return_val_if_fail(file != NULL, -1);
 112         cm_return_val_if_fail(ac_prefs != NULL, -1);
 113         cm_return_val_if_fail(to_list != NULL, -1);
 114
 115         if ((fp = claws_fopen(file, "rb")) == NULL) {
 116                 FILE_OP_ERROR(file, "claws_fopen");
 117                 return -1;
 118         }
 119
 120         inc_lock();
 121         if (ac_prefs->use_mail_command && ac_prefs->mail_command &&
 122             (*ac_prefs->mail_command)) {
 123                 val = send_message_local(ac_prefs->mail_command, fp);
 124                 claws_fclose(fp);
 125                 inc_unlock();
 126                 return val;
 127         } else {
 128                 val = send_message_smtp(ac_prefs, to_list, fp);
 129
 130                 claws_fclose(fp);
 131                 inc_unlock();
 132                 return val;
 133         }
 134 }
 135
 136 enum
 137 {
 138         Q_SENDER     = 0,
 139         Q_SMTPSERVER = 1,
 140         Q_RECIPIENTS = 2,
 141         Q_ACCOUNT_ID = 3
 142 };
 143
 144 gint send_message_local(const gchar *command, FILE *fp)
 145 {
 146         gchar **argv;
 147         GPid pid;
 148         gint child_stdin;
 149         gchar buf[BUFFSIZE];
 150         gboolean err = FALSE;
 151
 152         cm_return_val_if_fail(command != NULL, -1);
 153         cm_return_val_if_fail(fp != NULL, -1);
 154
 155         log_message(LOG_PROTOCOL, _("Sending message using command: %s\n"), command);
 156
 157         argv = strsplit_with_quote(command, " ", 0);
 158
 159         if (g_spawn_async_with_pipes(NULL, argv, NULL,
 160 #ifdef G_OS_WIN32
 161                                      0,
 162 #else
 163                                      G_SPAWN_DO_NOT_REAP_CHILD,
 164 #endif
 165                                      NULL, NULL,
 166                                      &pid, &child_stdin, NULL, NULL,
 167                                      NULL) == FALSE) {
 168                 g_snprintf(buf, sizeof(buf),
 169                            _("Couldn't execute command: %s"), command);
 170                 log_warning(LOG_PROTOCOL, "%s\n", buf);
 171                 alertpanel_error("%s", buf);
 172                 g_strfreev(argv);
 173                 return -1;
 174         }
 175         g_strfreev(argv);
 176
 177         while (claws_fgets(buf, sizeof(buf), fp) != NULL) {
 178                 strretchomp(buf);
 179                 if (buf[0] == '.' && buf[1] == '\0') {
 180                         if (fd_write_all(child_stdin, ".", 1) < 0) {
 181                                 err = TRUE;
 182                                 break;
 183                         }
 184                 }
 185                 if (fd_write_all(child_stdin, buf, strlen(buf)) < 0 ||
 186                     fd_write_all(child_stdin, "\n", 1) < 0) {
 187                         err = TRUE;
 188                         break;
 189                 }
 190         }
 191
 192         fd_close(child_stdin);
 193
 194 #ifndef G_OS_WIN32
 195         gint status;
 196         waitpid(pid, &status, 0);
 197         if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
 198                 err = TRUE;
 199 #endif
 200
 201         g_spawn_close_pid(pid);
 202
 203         if (err) {
 204                 g_snprintf(buf, sizeof(buf),
 205                            _("Error occurred while executing command: %s"),
 206                            command);
 207                 log_warning(LOG_PROTOCOL, "%s\n", buf);
 208                 alertpanel_error("%s", buf);
 209                 return -1;
 210         }
 211
 212         return 0;
 213 }
 214
 215 gint send_message_smtp_full(PrefsAccount *ac_prefs, GSList *to_list, FILE *fp, gboolean keep_session)
 216 {
 217         Session *session;
 218         SMTPSession *smtp_session;
 219         gushort port = 0;
 220         gchar buf[BUFFSIZE];
 221         gint ret = 0;
 222         gboolean was_inited = FALSE;
 223         MsgInfo *tmp_msginfo = NULL;
 224         MsgFlags flags = {0, 0};
 225         long fp_pos = 0;
 226         gchar spec_from[BUFFSIZE];
 227         ProxyInfo *proxy_info = NULL;
 228
 229         cm_return_val_if_fail(ac_prefs != NULL, -1);
 230         cm_return_val_if_fail(ac_prefs->address != NULL, -1);
 231         cm_return_val_if_fail(ac_prefs->smtp_server != NULL, -1);
 232         cm_return_val_if_fail(to_list != NULL, -1);
 233         cm_return_val_if_fail(fp != NULL, -1);
 234
 235         /* get the From address used, not necessarily the ac_prefs',
 236          * because it's editable. */
 237
 238         fp_pos = ftell(fp);
 239         if (fp_pos < 0) {
 240                 perror("ftell");
 241                 return -1;
 242         }
 243         tmp_msginfo = procheader_parse_stream(fp, flags, TRUE, FALSE);
 244         if (fseek(fp, fp_pos, SEEK_SET) < 0) {
 245                 perror("fseek");
 246                 return -1;
 247         }
 248
 249         if (tmp_msginfo && tmp_msginfo->extradata && tmp_msginfo->extradata->resent_from) {
 250                 strncpy2(spec_from, tmp_msginfo->extradata->resent_from, BUFFSIZE-1);
 251                 extract_address(spec_from);
 252         } else if (tmp_msginfo && tmp_msginfo->from) {
 253                 strncpy2(spec_from, tmp_msginfo->from, BUFFSIZE-1);
 254                 extract_address(spec_from);
 255         } else {
 256                 strncpy2(spec_from, ac_prefs->address, BUFFSIZE-1);
 257         }
 258         if (tmp_msginfo) {
 259                 procmsg_msginfo_free(&tmp_msginfo);
 260         }
 261
 262         if (!ac_prefs->session) {
 263                 /* we can't reuse a previously initialised session */
 264                 session = smtp_session_new(ac_prefs);
 265                 session->ssl_cert_auto_accept = ac_prefs->ssl_certs_auto_accept;
 266
 267                 smtp_session = SMTP_SESSION(session);
 268
 269                 if (ac_prefs->set_domain && ac_prefs->domain && strlen(ac_prefs->domain)) {
 270                         smtp_session->hostname = g_strdup(ac_prefs->domain);
 271                 } else {
 272                         smtp_session->hostname = NULL;
 273                 }
 274
 275 #ifdef USE_GNUTLS
 276                 port = ac_prefs->set_smtpport ? ac_prefs->smtpport :
 277                         ac_prefs->ssl_smtp == SSL_TUNNEL ? SSMTP_PORT : SMTP_PORT;
 278                 session->ssl_type = ac_prefs->ssl_smtp;
 279                 if (ac_prefs->ssl_smtp != SSL_NONE)
 280                         session->nonblocking = ac_prefs->use_nonblocking_ssl;
 281                 if (ac_prefs->set_gnutls_priority && ac_prefs->gnutls_priority &&
 282                     strlen(ac_prefs->gnutls_priority))
 283                         session->gnutls_priority = g_strdup(ac_prefs->gnutls_priority);
 284                 session->use_tls_sni = ac_prefs->use_tls_sni;
 285 #else
 286                 if (ac_prefs->ssl_smtp != SSL_NONE) {
 287                         if (alertpanel_full(_("Insecure connection"),
 288                                 _("This connection is configured to be secured "
 289                                   "using TLS, but TLS is not available "
 290                                   "in this build of Claws Mail. \n\n"
 291                                   "Do you want to continue connecting to this "
 292                                   "server? The communication would not be "
 293                                   "secure."),
 294                                   GTK_STOCK_CANCEL, _("Con_tinue connecting"), NULL,
 295                                         ALERTFOCUS_FIRST, FALSE, NULL, ALERT_WARNING) != G_ALERTALTERNATE) {
 296                                 session_destroy(session);
 297                                 return -1;
 298                         }
 299                 }
 300                 port = ac_prefs->set_smtpport ? ac_prefs->smtpport : SMTP_PORT;
 301 #endif
 302
 303                 if(ac_prefs->use_smtp_auth && ac_prefs->smtp_auth_type == SMTPAUTH_OAUTH2)
 304                         oauth2_check_passwds (ac_prefs);
 305
 306                 if (ac_prefs->use_smtp_auth) {
 307                         smtp_session->forced_auth_type = ac_prefs->smtp_auth_type;
 308                         if (ac_prefs->smtp_userid && strlen(ac_prefs->smtp_userid)) {
 309                                 smtp_session->user = g_strdup(ac_prefs->smtp_userid);
 310                                 if (password_get(smtp_session->user,
 311                                                         ac_prefs->smtp_server, "smtp", port,
 312                                                         &(smtp_session->pass))) {
 313                                         /* NOP */;
 314                                 } else if ((smtp_session->pass =
 315                                                 passwd_store_get_account(ac_prefs->account_id,
 316                                                                 PWS_ACCOUNT_SEND)) == NULL) {
 317                                         smtp_session->pass =
 318                                                 input_dialog_query_password_keep
 319                                                         (ac_prefs->smtp_server,
 320                                                          smtp_session->user,
 321                                                          &(ac_prefs->session_smtp_passwd));
 322                                         if (!smtp_session->pass) {
 323                                                 session_destroy(session);
 324                                                 return -1;
 325                                         }
 326                                 }
 327                         } else {
 328                                 smtp_session->user = g_strdup(ac_prefs->userid);
 329                                 if (password_get(smtp_session->user,
 330                                                         ac_prefs->smtp_server, "smtp", port,
 331                                                         &(smtp_session->pass))) {
 332                                         /* NOP */;
 333                                 } else if ((smtp_session->pass = passwd_store_get_account(
 334                                                         ac_prefs->account_id, PWS_ACCOUNT_RECV)) == NULL) {
 335                                         smtp_session->pass =
 336                                                 input_dialog_query_password_keep
 337                                                         (ac_prefs->smtp_server,
 338                                                          smtp_session->user,
 339                                                          &(ac_prefs->session_smtp_passwd));
 340                                         if (!smtp_session->pass) {
 341                                                 session_destroy(session);
 342                                                 return -1;
 343                                         }
 344                                 }
 345                         }
 346                 } else {
 347                         smtp_session->user = NULL;
 348                         smtp_session->pass = NULL;
 349                 }
 350
 351                 send_dialog = send_progress_dialog_create();
 352                 send_dialog->session = session;
 353                 smtp_session->dialog = send_dialog;
 354
 355                 progress_dialog_list_set(send_dialog->dialog, 0, NULL,
 356                                          ac_prefs->smtp_server,
 357                                          _("Connecting"));
 358
 359                 if (ac_prefs->pop_before_smtp
 360                     && (ac_prefs->protocol == A_POP3)
 361                     && (time(NULL) - ac_prefs->last_pop_login_time) > (60 * ac_prefs->pop_before_smtp_timeout)) {
 362                         g_snprintf(buf, sizeof(buf), _("Doing POP before SMTP..."));
 363                         log_message(LOG_PROTOCOL, "%s\n", buf);
 364                         progress_dialog_set_label(send_dialog->dialog, buf);
 365                         progress_dialog_list_set_status(send_dialog->dialog, 0, _("POP before SMTP"));
 366                         GTK_EVENTS_FLUSH();
 367                         inc_pop_before_smtp(ac_prefs);
 368                 }
 369
 370                 g_snprintf(buf, sizeof(buf), _("Account '%s': Connecting to SMTP server: %s:%d..."),
 371                                 ac_prefs->account_name, ac_prefs->smtp_server, port);
 372                 progress_dialog_set_label(send_dialog->dialog, buf);
 373                 log_message(LOG_PROTOCOL, "%s\n", buf);
 374
 375                 session_set_recv_message_notify(session, send_recv_message, send_dialog);
 376                 session_set_send_data_progressive_notify
 377                         (session, send_send_data_progressive, send_dialog);
 378                 session_set_send_data_notify(session, send_send_data_finished, send_dialog);
 379
 380         } else {
 381                 /* everything is ready to start at MAIL FROM:, just
 382                  * reinit useful variables.
 383                  */
 384                 session = SESSION(ac_prefs->session);
 385                 ac_prefs->session = NULL;
 386                 smtp_session = SMTP_SESSION(session);
 387                 smtp_session->state = SMTP_HELO;
 388                 send_dialog = (SendProgressDialog *)smtp_session->dialog;
 389                 was_inited = TRUE;
 390         }
 391
 392         /* This has to be initialised for every mail sent */
 393         smtp_session->from = g_strdup(spec_from);
 394         smtp_session->to_list = to_list;
 395         smtp_session->cur_to = to_list;
 396         smtp_session->send_data = (guchar *)get_outgoing_rfc2822_str(fp);
 397         smtp_session->send_data_len = strlen((gchar *)smtp_session->send_data);
 398
 399         if (ac_prefs->use_proxy && ac_prefs->use_proxy_for_send) {
 400                 if (ac_prefs->use_default_proxy) {
 401                         proxy_info = (ProxyInfo *)&(prefs_common.proxy_info);
 402                         if (proxy_info->use_proxy_auth)
 403                                 proxy_info->proxy_pass = passwd_store_get(PWS_CORE, PWS_CORE_PROXY,
 404                                                 PWS_CORE_PROXY_PASS);
 405                 } else {
 406                         proxy_info = (ProxyInfo *)&(ac_prefs->proxy_info);
 407                         if (proxy_info->use_proxy_auth)
 408                                 proxy_info->proxy_pass = passwd_store_get_account(ac_prefs->account_id,
 409                                                 PWS_ACCOUNT_PROXY_PASS);
 410                 }
 411         }
 412         SESSION(smtp_session)->proxy_info = proxy_info;
 413
 414         session_set_timeout(session,
 415                             prefs_common.io_timeout_secs * 1000);
 416         /* connect if necessary */
 417         if (!was_inited && session_connect(session, ac_prefs->smtp_server,
 418                                 port) < 0) {
 419                 session_destroy(session);
 420                 send_progress_dialog_destroy(send_dialog);
 421                 ac_prefs->session = NULL;
 422                 return -1;
 423         }
 424
 425         debug_print("send_message_smtp(): begin event loop\n");
 426
 427         if (was_inited) {
 428                 /* as the server is quiet, start sending ourselves */
 429                 smtp_from(smtp_session);
 430         }
 431
 432         while (session_is_running(session) && send_dialog->cancelled == FALSE
 433                 && SMTP_SESSION(session)->state != SMTP_MAIL_SENT_OK)
 434                 gtk_main_iteration();
 435
 436         if (SMTP_SESSION(session)->error_val == SM_AUTHFAIL) {
 437                 if (ac_prefs->session_smtp_passwd) {
 438                         g_free(ac_prefs->session_smtp_passwd);
 439                         ac_prefs->session_smtp_passwd = NULL;
 440                 }
 441                 ret = -1;
 442         } else if (SMTP_SESSION(session)->state == SMTP_MAIL_SENT_OK) {
 443                 log_message(LOG_PROTOCOL, "%s\n", _("Mail sent successfully."));
 444                 ret = 0;
 445         } else if (session->state == SESSION_EOF &&
 446                    SMTP_SESSION(session)->state == SMTP_QUIT) {
 447                 /* consider EOF right after QUIT successful */
 448                 log_warning(LOG_PROTOCOL, "%s\n", _("Connection closed by the remote host."));
 449                 ret = 0;
 450         } else if (session->state == SESSION_ERROR ||
 451                    session->state == SESSION_EOF ||
 452                    session->state == SESSION_TIMEOUT ||
 453                    SMTP_SESSION(session)->state == SMTP_ERROR ||
 454                    SMTP_SESSION(session)->error_val != SM_OK)
 455                 ret = -1;
 456         else if (send_dialog->cancelled == TRUE)
 457                 ret = -1;
 458
 459         if (ret == -1) {
 460                 manage_window_focus_in(send_dialog->dialog->window, NULL, NULL);
 461                 send_put_error(session);
 462                 manage_window_focus_out(send_dialog->dialog->window, NULL, NULL);
 463         }
 464
 465         /* if we should close the connection, let's do it.
 466          * Close it in case of error, too, as it helps reinitializing things
 467          * easier.
 468          */
 469         if (!keep_session || ret != 0) {
 470                 if (session_is_connected(session))
 471                         smtp_quit(smtp_session);
 472                 while (session_is_connected(session) && !send_dialog->cancelled)
 473                         gtk_main_iteration();
 474                 session_destroy(session);
 475                 ac_prefs->session = NULL;
 476                 send_progress_dialog_destroy(send_dialog);
 477         } else {
 478                 g_free(smtp_session->from);
 479                 g_free(smtp_session->send_data);
 480                 g_free(smtp_session->error_msg);
 481         }
 482         if (keep_session && ret == 0 && ac_prefs->session == NULL)
 483                 ac_prefs->session = SMTP_SESSION(session);
 484
 485
 486         statusbar_pop_all();
 487         statusbar_verbosity_set(FALSE);
 488         return ret;
 489 }
 490
 491 gint send_message_smtp(PrefsAccount *ac_prefs, GSList *to_list, FILE *fp)
 492 {
 493         return send_message_smtp_full(ac_prefs, to_list, fp, FALSE);
 494 }
 495
 496 static gint send_recv_message(Session *session, const gchar *msg, gpointer data)
 497 {
 498         gchar buf[BUFFSIZE];
 499         SMTPSession *smtp_session = SMTP_SESSION(session);
 500         SendProgressDialog *dialog = (SendProgressDialog *)data;
 501         gchar *state_str = NULL;
 502
 503         cm_return_val_if_fail(dialog != NULL, -1);
 504
 505         switch (smtp_session->state) {
 506         case SMTP_READY:
 507                 return 0;
 508         case SMTP_HELO:
 509                 g_snprintf(buf, sizeof(buf), _("Sending HELO..."));
 510                 state_str = _("Authenticating");
 511                 statusbar_print_all(_("Sending message..."));
 512                 break;
 513         case SMTP_EHLO:
 514                 g_snprintf(buf, sizeof(buf), _("Sending EHLO..."));
 515                 state_str = _("Authenticating");
 516                 statusbar_print_all(_("Sending message..."));
 517                 break;
 518         case SMTP_AUTH:
 519                 g_snprintf(buf, sizeof(buf), _("Authenticating..."));
 520                 state_str = _("Authenticating");
 521                 break;
 522         case SMTP_FROM:
 523                 g_snprintf(buf, sizeof(buf), _("Sending MAIL FROM..."));
 524                 state_str = _("Sending");
 525                 break;
 526         case SMTP_RCPT:
 527                 g_snprintf(buf, sizeof(buf), _("Sending RCPT TO..."));
 528                 state_str = _("Sending");
 529                 break;
 530         case SMTP_DATA:
 531         case SMTP_EOM:
 532                 g_snprintf(buf, sizeof(buf), _("Sending DATA..."));
 533                 state_str = _("Sending");
 534                 break;
 535         case SMTP_QUIT:
 536                 g_snprintf(buf, sizeof(buf), _("Quitting..."));
 537                 state_str = _("Quitting");
 538                 break;
 539         case SMTP_ERROR:
 540                 g_warning("send: error: %s", msg);
 541                 return 0;
 542         default:
 543                 return 0;
 544         }
 545
 546         progress_dialog_set_label(dialog->dialog, buf);
 547         progress_dialog_list_set_status(dialog->dialog, 0, state_str);
 548
 549         return 0;
 550 }
 551
 552 static gint send_send_data_progressive(Session *session, guint cur_len,
 553                                        guint total_len, gpointer data)
 554 {
 555         gchar buf[BUFFSIZE];
 556         SendProgressDialog *dialog = (SendProgressDialog *)data;
 557         MainWindow *mainwin = mainwindow_get_mainwindow();
 558
 559         cm_return_val_if_fail(dialog != NULL, -1);
 560
 561         if (SMTP_SESSION(session)->state != SMTP_SEND_DATA &&
 562             SMTP_SESSION(session)->state != SMTP_EOM)
 563                 return 0;
 564
 565         g_snprintf(buf, sizeof(buf), _("Sending message (%d / %d bytes)"),
 566                    cur_len, total_len);
 567         progress_dialog_set_label(dialog->dialog, buf);
 568         progress_dialog_set_fraction
 569                 (dialog->dialog, (total_len == 0) ? 0 : (gfloat)cur_len / (gfloat)total_len);
 570
 571         if (mainwin) {
 572                 if (!gtk_widget_get_visible(mainwin->progressbar))
 573                         gtk_widget_show(mainwin->progressbar);
 574                 gtk_progress_bar_set_fraction
 575                         (GTK_PROGRESS_BAR(mainwin->progressbar),
 576                          (total_len == 0) ? 0 : (gfloat)cur_len / (gfloat)total_len);
 577         }
 578
 579         return 0;
 580 }
 581
 582 static gint send_send_data_finished(Session *session, guint len, gpointer data)
 583 {
 584         SendProgressDialog *dialog = (SendProgressDialog *)data;
 585         MainWindow *mainwin = mainwindow_get_mainwindow();
 586
 587         cm_return_val_if_fail(dialog != NULL, -1);
 588
 589         send_send_data_progressive(session, len, len, dialog);
 590         if (mainwin) {
 591                 gtk_widget_hide(mainwin->progressbar);
 592                 gtk_progress_bar_set_fraction
 593                         (GTK_PROGRESS_BAR(mainwin->progressbar),(gfloat)0);
 594         }
 595
 596         return 0;
 597 }
 598
 599 static void send_progress_dialog_size_allocate_cb(GtkWidget *widget,
 600                                          GtkAllocation *allocation)
 601 {
 602         cm_return_if_fail(allocation != NULL);
 603
 604         prefs_common.sendwin_width = allocation->width;
 605         prefs_common.sendwin_height = allocation->height;
 606 }
 607
 608 static SendProgressDialog *send_progress_dialog_create(void)
 609 {
 610         SendProgressDialog *dialog;
 611         ProgressDialog *progress;
 612         static GdkGeometry geometry;
 613
 614         dialog = g_new0(SendProgressDialog, 1);
 615
 616         progress = progress_dialog_create();
 617         gtk_window_set_title(GTK_WINDOW(progress->window),
 618                              _("Sending message"));
 619         g_signal_connect(G_OBJECT(progress->showlog_btn), "clicked",
 620                          G_CALLBACK(send_showlog_button_cb), dialog);
 621         g_signal_connect(G_OBJECT(progress->cancel_btn), "clicked",
 622                          G_CALLBACK(send_cancel_button_cb), dialog);
 623         g_signal_connect(G_OBJECT(progress->window), "delete_event",
 624                          G_CALLBACK(gtk_true), NULL);
 625         gtk_window_set_modal(GTK_WINDOW(progress->window), TRUE);
 626         g_signal_connect(G_OBJECT(progress->window), "size_allocate",
 627                          G_CALLBACK(send_progress_dialog_size_allocate_cb), NULL);
 628         manage_window_set_transient(GTK_WINDOW(progress->window));
 629
 630         progress_dialog_get_fraction(progress);
 631
 632         if (!geometry.min_height) {
 633                 geometry.min_width = 460;
 634                 geometry.min_height = 250;
 635         }
 636
 637         gtk_window_set_geometry_hints(GTK_WINDOW(progress->window), NULL, &geometry,
 638                                       GDK_HINT_MIN_SIZE);
 639         gtk_widget_set_size_request(progress->window, prefs_common.sendwin_width,
 640                                     prefs_common.sendwin_height);
 641
 642         if (!prefs_common.send_dialog_invisible) {
 643                 gtk_widget_show_now(progress->window);
 644         }
 645
 646         dialog->dialog = progress;
 647
 648         return dialog;
 649 }
 650
 651 static void send_progress_dialog_destroy(SendProgressDialog *dialog)
 652 {
 653         cm_return_if_fail(dialog != NULL);
 654         if (!prefs_common.send_dialog_invisible) {
 655                 progress_dialog_destroy(dialog->dialog);
 656         }
 657         g_free(dialog);
 658         send_dialog = NULL;
 659 }
 660
 661 static void send_showlog_button_cb(GtkWidget *widget, gpointer data)
 662 {
 663         MainWindow *mainwin = mainwindow_get_mainwindow();
 664
 665         log_window_show(mainwin->logwin);
 666 }
 667
 668 static void send_cancel_button_cb(GtkWidget *widget, gpointer data)
 669 {
 670         SendProgressDialog *dialog = (SendProgressDialog *)data;
 671         statusbar_progress_all(0,0,0);
 672
 673         dialog->cancelled = TRUE;
 674 }
 675
 676 static void send_put_error(Session *session)
 677 {
 678         gchar *msg;
 679         gchar *log_msg = NULL;
 680         gchar *err_msg = NULL;
 681
 682         msg = SMTP_SESSION(session)->error_msg;
 683
 684         switch (SMTP_SESSION(session)->error_val) {
 685         case SM_ERROR:
 686         case SM_UNRECOVERABLE:
 687                 log_msg = _("Error occurred while sending the message.");
 688                 if (msg)
 689                         err_msg = g_strdup_printf
 690                                 (_("Error occurred while sending the message:\n%s"),
 691                                  msg);
 692                 else
 693                         err_msg = g_strdup(log_msg);
 694                 break;
 695         case SM_AUTHFAIL:
 696                 log_msg = _("Authentication failed.");
 697                 if (msg)
 698                         err_msg = g_strdup_printf
 699                                 (_("Authentication failed:\n%s"), msg);
 700                 else
 701                         err_msg = g_strdup(log_msg);
 702                 break;
 703         default:
 704                 switch (session->state) {
 705                 case SESSION_ERROR:
 706                         log_msg =
 707                                 _("Error occurred while sending the message.");
 708                         err_msg = g_strdup(log_msg);
 709                         break;
 710                 case SESSION_EOF:
 711                         log_msg = _("Connection closed by the remote host.");
 712                         err_msg = g_strdup(log_msg);
 713                         break;
 714                 case SESSION_TIMEOUT:
 715                         log_msg = _("Session timed out. You may be able to "
 716                                     "recover by increasing the timeout value in "
 717                                     "Preferences/Other/Miscellaneous.");
 718                         err_msg = g_strdup(log_msg);
 719                         break;
 720                 default:
 721                         break;
 722                 }
 723                 break;
 724         }
 725
 726         if (err_msg) {
 727                 log_error(LOG_PROTOCOL, "%s\n", err_msg);
 728                 g_free(err_msg);
 729         } else {
 730                 if (log_msg)
 731                         log_warning(LOG_PROTOCOL, "%s\n", log_msg);
 732         }
 733 }
 734