src/action.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2007 Hiroyuki Yamamoto & 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/gtk.h>
  29 #include <gdk/gdkkeysyms.h>
  30 #ifdef GDK_WINDOWING_X11
  31 #  include <gdk/gdkx.h>
  32 #endif /* GDK_WINDOWING_X11 */
  33 #include <stdio.h>
  34 #include <stdlib.h>
  35 #include <string.h>
  36 #include <errno.h>
  37 #include <sys/types.h>
  38 #if HAVE_SYS_WAIT_H
  39 #  include <sys/wait.h>
  40 #endif
  41 #include <signal.h>
  42 #include <unistd.h>
  43
  44 #include "utils.h"
  45 #include "gtkutils.h"
  46 #include "manage_window.h"
  47 #include "mainwindow.h"
  48 #include "prefs_common.h"
  49 #include "alertpanel.h"
  50 #include "inputdialog.h"
  51 #include "action.h"
  52 #include "compose.h"
  53 #include "procmsg.h"
  54 #include "textview.h"
  55 #include "matcher_parser.h" /* CLAWS */
  56 #include "filtering.h"
  57 #include "procheader.h"
  58
  59 typedef struct _Children                Children;
  60 typedef struct _ChildInfo               ChildInfo;
  61 typedef struct _UserStringDialog        UserStringDialog;
  62
  63 struct _Children
  64 {
  65         GtkWidget       *dialog;
  66         GtkWidget       *text;
  67         GtkWidget       *input_entry;
  68         GtkWidget       *input_hbox;
  69         GtkWidget       *progress_bar;
  70         GtkWidget       *abort_btn;
  71         GtkWidget       *close_btn;
  72         GtkWidget       *scrolledwin;
  73
  74         gchar           *action;
  75         ActionType       action_type;
  76         GSList          *list;
  77         gint             nb;
  78         gint             initial_nb;
  79         gint             open_in;
  80         gboolean         output;
  81
  82         GtkWidget       *msg_text;
  83
  84         gboolean         is_selection;
  85 };
  86
  87 struct _ChildInfo
  88 {
  89         Children        *children;
  90         gchar           *cmd;
  91         pid_t            pid;
  92         gint             chld_in;
  93         gint             chld_out;
  94         gint             chld_err;
  95         gint             chld_status;
  96         gint             tag_in;
  97         gint             tag_out;
  98         gint             tag_err;
  99         gint             tag_status;
 100         gint             new_out;
 101
 102         GString         *output;
 103         void (*callback)(void *data);
 104         void *data;
 105
 106         GSList          *msginfo_list;
 107 };
 108
 109 static void action_update_menu          (GtkItemFactory *ifactory,
 110                                          gchar          *branch_path,
 111                                          gpointer        callback,
 112                                          gpointer        data);
 113 static void compose_actions_execute_cb  (Compose        *compose,
 114                                          guint           action_nb,
 115                                          GtkWidget      *widget);
 116 static void mainwin_actions_execute_cb  (MainWindow     *mainwin,
 117                                          guint           action_nb,
 118                                          GtkWidget      *widget);
 119 static void msgview_actions_execute_cb  (MessageView    *msgview,
 120                                          guint           action_nb,
 121                                          GtkWidget      *widget);
 122 static void message_actions_execute     (MessageView    *msgview,
 123                                          guint           action_nb,
 124                                          GSList         *msg_list);
 125
 126 static gboolean execute_filtering_actions(gchar         *action,
 127                                           GSList        *msglist);
 128
 129 static gboolean execute_actions         (gchar          *action,
 130                                          GSList         *msg_list,
 131                                          GtkWidget      *text,
 132                                          gint            body_pos,
 133                                          MimeInfo       *partinfo,
 134                                          void (*callback)(void *data),
 135                                          void *data);
 136
 137 static gchar *parse_action_cmd          (gchar          *action,
 138                                          MsgInfo        *msginfo,
 139                                          GSList         *msg_list,
 140                                          MimeInfo       *partinfo,
 141                                          const gchar    *user_str,
 142                                          const gchar    *user_hidden_str,
 143                                          const gchar    *sel_str);
 144 static gboolean parse_append_filename   (GString        *cmd,
 145                                          MsgInfo        *msginfo);
 146
 147 static gboolean parse_append_msgpart    (GString        *cmd,
 148                                          MsgInfo        *msginfo,
 149                                          MimeInfo       *partinfo);
 150
 151 static ChildInfo *fork_child            (gchar          *cmd,
 152                                          const gchar    *msg_str,
 153                                          Children       *children);
 154
 155 static gint wait_for_children           (Children       *children);
 156
 157 static void free_children               (Children       *children);
 158
 159 static void childinfo_close_pipes       (ChildInfo      *child_info);
 160
 161 static void create_io_dialog            (Children       *children);
 162 static void update_io_dialog            (Children       *children);
 163
 164 static void hide_io_dialog_cb           (GtkWidget      *widget,
 165                                          gpointer        data);
 166 static gint io_dialog_key_pressed_cb    (GtkWidget      *widget,
 167                                          GdkEventKey    *event,
 168                                          gpointer        data);
 169
 170 static void catch_output                (gpointer                data,
 171                                          gint                    source,
 172                                          GdkInputCondition       cond);
 173 static void catch_input                 (gpointer                data,
 174                                          gint                    source,
 175                                          GdkInputCondition       cond);
 176 static void catch_status                (gpointer                data,
 177                                          gint                    source,
 178                                          GdkInputCondition       cond);
 179
 180 static gchar *get_user_string           (const gchar    *action,
 181                                          ActionType      type);
 182
 183
 184 ActionType action_get_type(const gchar *action_str)
 185 {
 186         const gchar *p;
 187         ActionType action_type = ACTION_NONE;
 188
 189         g_return_val_if_fail(action_str,  ACTION_ERROR);
 190         g_return_val_if_fail(*action_str, ACTION_ERROR);
 191
 192         p = action_str;
 193
 194         if (p[0] == '|') {
 195                 action_type |= ACTION_PIPE_IN;
 196                 p++;
 197         } else if (p[0] == '>') {
 198                 action_type |= ACTION_USER_IN;
 199                 p++;
 200         } else if (p[0] == '*') {
 201                 action_type |= ACTION_USER_HIDDEN_IN;
 202                 p++;
 203         }
 204
 205         if (p[0] == '\0')
 206                 return ACTION_ERROR;
 207
 208         while (*p && action_type != ACTION_ERROR) {
 209                 if (p[0] == '%' && p[1]) {
 210                         switch (p[1]) {
 211                         case 'a':
 212                                 /* CLAWS: filtering action is a mutually exclusive
 213                                  * action. we can enable others if needed later. we
 214                                  * add ACTION_SINGLE | ACTION_MULTIPLE so it will
 215                                  * only be executed from the main window toolbar */
 216                                 if (p[2] == 's')  /* source messages */
 217                                         action_type = ACTION_FILTERING_ACTION
 218                                                     | ACTION_SINGLE
 219                                                     | ACTION_MULTIPLE;
 220                                 break;
 221                         case 'f':
 222                                 action_type |= ACTION_SINGLE;
 223                                 break;
 224                         case 'F':
 225                                 action_type |= ACTION_MULTIPLE;
 226                                 break;
 227                         case 'p':
 228                                 action_type |= ACTION_SINGLE;
 229                                 break;
 230                         case 's':
 231                                 action_type |= ACTION_SELECTION_STR;
 232                                 break;
 233                         case 'u':
 234                                 action_type |= ACTION_USER_STR;
 235                                 break;
 236                         case 'h':
 237                                 action_type |= ACTION_USER_HIDDEN_STR;
 238                                 break;
 239                         case '%':
 240                                 /* literal '%' */
 241                                 break;
 242                         default:
 243                                 action_type = ACTION_ERROR;
 244                                 break;
 245                         }
 246                         p++;
 247                 } else if (p[0] == '|') {
 248                         if (p[1] == '\0')
 249                                 action_type |= ACTION_PIPE_OUT;
 250                 } else if (p[0] == '>') {
 251                         if (p[1] == '\0')
 252                                 action_type |= ACTION_INSERT;
 253                 } else if (p[0] == '&') {
 254                         if (p[1] == '\0')
 255                                 action_type |= ACTION_ASYNC;
 256                 }
 257                 p++;
 258         }
 259
 260         return action_type;
 261 }
 262
 263 static gchar *parse_action_cmd(gchar *action, MsgInfo *msginfo,
 264                                GSList *msg_list, MimeInfo *partinfo,
 265                                const gchar *user_str,
 266                                const gchar *user_hidden_str,
 267                                const gchar *sel_str)
 268 {
 269         GString *cmd;
 270         gchar *p;
 271         GSList *cur;
 272
 273         p = action;
 274
 275         if (p[0] == '|' || p[0] == '>' || p[0] == '*')
 276                 p++;
 277
 278         cmd = g_string_sized_new(strlen(action));
 279
 280         while (p[0] &&
 281                !((p[0] == '|' || p[0] == '>' || p[0] == '&') && !p[1])) {
 282                 if (p[0] == '%' && p[1]) {
 283                         switch (p[1]) {
 284                         case 'f':
 285                                 if (!parse_append_filename(cmd, msginfo)) {
 286                                         g_string_free(cmd, TRUE);
 287                                         return NULL;
 288                                 }
 289                                 p++;
 290                                 break;
 291                         case 'F':
 292                                 for (cur = msg_list; cur != NULL;
 293                                      cur = cur->next) {
 294                                         MsgInfo *msg = (MsgInfo *)cur->data;
 295
 296                                         if (!parse_append_filename(cmd, msg)) {
 297                                                 g_string_free(cmd, TRUE);
 298                                                 return NULL;
 299                                         }
 300                                         if (cur->next)
 301                                                 g_string_append_c(cmd, ' ');
 302                                 }
 303                                 p++;
 304                                 break;
 305                         case 'p':
 306                                 if (!parse_append_msgpart(cmd, msginfo,
 307                                                           partinfo)) {
 308                                         g_string_free(cmd, TRUE);
 309                                         return NULL;
 310                                 }
 311                                 p++;
 312                                 break;
 313                         case 's':
 314                                 if (sel_str)
 315                                         g_string_append(cmd, sel_str);
 316                                 p++;
 317                                 break;
 318                         case 'u':
 319                                 if (user_str)
 320                                         g_string_append(cmd, user_str);
 321                                 p++;
 322                                 break;
 323                         case 'h':
 324                                 if (user_hidden_str)
 325                                         g_string_append(cmd, user_hidden_str);
 326                                 p++;
 327                                 break;
 328                         case '%':
 329                                 g_string_append_c(cmd, p[1]);
 330                                 p++;
 331                                 break;
 332                         default:
 333                                 g_string_append_c(cmd, p[0]);
 334                                 g_string_append_c(cmd, p[1]);
 335                                 p++;
 336                         }
 337                 } else {
 338                         g_string_append_c(cmd, p[0]);
 339                 }
 340                 p++;
 341         }
 342         if (cmd->len == 0) {
 343                 g_string_free(cmd, TRUE);
 344                 return NULL;
 345         }
 346
 347         p = cmd->str;
 348         g_string_free(cmd, FALSE);
 349         return p;
 350 }
 351
 352 static gboolean parse_append_filename(GString *cmd, MsgInfo *msginfo)
 353 {
 354         gchar *filename;
 355         gchar *p, *q;
 356         gchar escape_ch[] = "\\ ";
 357
 358         g_return_val_if_fail(msginfo, FALSE);
 359
 360         filename = procmsg_get_message_file(msginfo);
 361
 362         if (!filename) {
 363                 alertpanel_error(_("Could not get message file %d"),
 364                                  msginfo->msgnum);
 365                 return FALSE;
 366         }
 367
 368         p = filename;
 369         while ((q = strpbrk(p, "$\"`'\\ \t*?[]&|;<>()!#~")) != NULL) {
 370                 escape_ch[1] = *q;
 371                 *q = '\0';
 372                 g_string_append(cmd, p);
 373                 g_string_append(cmd, escape_ch);
 374                 p = q + 1;
 375         }
 376         g_string_append(cmd, p);
 377
 378         g_free(filename);
 379
 380         return TRUE;
 381 }
 382
 383 static gboolean parse_append_msgpart(GString *cmd, MsgInfo *msginfo,
 384                                      MimeInfo *partinfo)
 385 {
 386         gboolean single_part = FALSE;
 387         gchar *filename;
 388         gchar *part_filename;
 389         gint ret;
 390
 391         if (!partinfo) {
 392                 partinfo = procmime_scan_message(msginfo);
 393                 if (!partinfo) {
 394                         alertpanel_error(_("Could not get message part."));
 395                         return FALSE;
 396                 }
 397
 398                 single_part = TRUE;
 399         }
 400
 401         filename = procmsg_get_message_file_path(msginfo);
 402         part_filename = procmime_get_tmp_file_name(partinfo);
 403
 404         ret = procmime_get_part(part_filename, partinfo);
 405
 406         if (single_part)
 407                 procmime_mimeinfo_free_all(partinfo);
 408         g_free(filename);
 409
 410         if (ret < 0) {
 411                 alertpanel_error(_("Can't get part of multipart message: %s"), strerror(-ret));
 412                 g_free(part_filename);
 413                 return FALSE;
 414         }
 415
 416         g_string_append(cmd, part_filename);
 417
 418         g_free(part_filename);
 419
 420         return TRUE;
 421 }
 422
 423 void actions_execute(gpointer data,
 424                      guint action_nb,
 425                      GtkWidget *widget,
 426                      gint source)
 427 {
 428         if (source == TOOLBAR_MAIN)
 429                 mainwin_actions_execute_cb((MainWindow*)data, action_nb, widget);
 430         else if (source == TOOLBAR_COMPOSE)
 431                 compose_actions_execute_cb((Compose*)data, action_nb, widget);
 432         else if (source == TOOLBAR_MSGVIEW)
 433                 msgview_actions_execute_cb((MessageView*)data, action_nb, widget);
 434 }
 435
 436 void action_update_mainwin_menu(GtkItemFactory *ifactory,
 437                                 gchar *branch_path,
 438                                 MainWindow *mainwin)
 439 {
 440         action_update_menu(ifactory, branch_path,
 441                            mainwin_actions_execute_cb, mainwin);
 442 }
 443
 444 void action_update_msgview_menu(GtkItemFactory *ifactory,
 445                                 gchar *branch_path,
 446                                 MessageView *msgview)
 447 {
 448         action_update_menu(ifactory, branch_path,
 449                            msgview_actions_execute_cb, msgview);
 450 }
 451
 452 void action_update_compose_menu(GtkItemFactory *ifactory,
 453                                 gchar *branch_path,
 454                                 Compose *compose)
 455 {
 456         action_update_menu(ifactory, branch_path,
 457                            compose_actions_execute_cb, compose);
 458 }
 459
 460 static void action_update_menu(GtkItemFactory *ifactory,
 461                                gchar *branch_path,
 462                                gpointer callback, gpointer data)
 463 {
 464         GtkWidget *menuitem;
 465         gchar *menu_path;
 466         GSList *cur;
 467         gchar *action, *action_p;
 468         GList *amenu;
 469         GtkItemFactoryEntry ifentry = {NULL, NULL, NULL, 0, "<Branch>"};
 470
 471         ifentry.path = branch_path;
 472         menuitem = gtk_item_factory_get_widget(ifactory, branch_path);
 473         g_return_if_fail(menuitem != NULL);
 474
 475         amenu = GTK_MENU_SHELL(menuitem)->children;
 476         while (amenu != NULL) {
 477                 GList *alist = amenu->next;
 478                 gtk_widget_destroy(GTK_WIDGET(amenu->data));
 479                 amenu = alist;
 480         }
 481
 482         ifentry.accelerator     = NULL;
 483         ifentry.callback_action = 0;
 484         ifentry.callback        = callback;
 485         ifentry.item_type       = NULL;
 486
 487         for (cur = prefs_common.actions_list; cur; cur = cur->next) {
 488                 action   = g_strdup((gchar *)cur->data);
 489                 action_p = strstr(action, ": ");
 490                 if (action_p && action_p[2] &&
 491                     (action_get_type(&action_p[2]) != ACTION_ERROR) &&
 492                     (action[0] != '/')) {
 493                         action_p[0] = '\0';
 494                         menu_path = g_strdup_printf("%s/%s", branch_path,
 495                                                     action);
 496                         ifentry.path = menu_path;
 497                         gtk_item_factory_create_item(ifactory, &ifentry, data,
 498                                                      1);
 499                         g_free(menu_path);
 500                 }
 501                 g_free(action);
 502                 ifentry.callback_action++;
 503         }
 504 }
 505
 506 static void compose_actions_execute_cb(Compose *compose, guint action_nb,
 507                                        GtkWidget *widget)
 508 {
 509         gchar *buf, *action;
 510         ActionType action_type;
 511
 512         g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));
 513
 514         buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
 515         g_return_if_fail(buf != NULL);
 516         action = strstr(buf, ": ");
 517         g_return_if_fail(action != NULL);
 518
 519         /* Point to the beginning of the command-line */
 520         action += 2;
 521
 522         action_type = action_get_type(action);
 523         if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE)) {
 524                 alertpanel_warning
 525                         (_("The selected action cannot be used in the compose window\n"
 526                            "because it contains %%f, %%F, %%as or %%p."));
 527                 return;
 528         }
 529
 530         execute_actions(action, NULL, compose->text, 0, NULL,
 531                 compose_action_cb, compose);
 532 }
 533
 534 static void mainwin_actions_execute_cb(MainWindow *mainwin, guint action_nb,
 535                                        GtkWidget *widget)
 536 {
 537         GSList *msg_list;
 538
 539         msg_list = summary_get_selected_msg_list(mainwin->summaryview);
 540         message_actions_execute(mainwin->messageview, action_nb, msg_list);
 541         g_slist_free(msg_list);
 542 }
 543
 544 static void msgview_actions_execute_cb(MessageView *msgview, guint action_nb,
 545                                        GtkWidget *widget)
 546 {
 547         GSList *msg_list = NULL;
 548
 549         if (msgview->msginfo)
 550                 msg_list = g_slist_append(msg_list, msgview->msginfo);
 551         message_actions_execute(msgview, action_nb, msg_list);
 552         g_slist_free(msg_list);
 553 }
 554
 555 static void message_actions_execute(MessageView *msgview, guint action_nb,
 556                                     GSList *msg_list)
 557 {
 558         TextView *textview;
 559         MimeInfo *partinfo;
 560         gchar *buf;
 561         gchar *action;
 562         GtkWidget *text = NULL;
 563         guint body_pos = 0;
 564         ActionType action_type;
 565
 566         g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));
 567
 568         buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
 569
 570         g_return_if_fail(buf);
 571         g_return_if_fail((action = strstr(buf, ": ")));
 572
 573         /* Point to the beginning of the command-line */
 574         action += 2;
 575
 576         textview = messageview_get_current_textview(msgview);
 577         if (textview) {
 578                 text     = textview->text;
 579                 body_pos = textview->body_pos;
 580         }
 581         partinfo = messageview_get_selected_mime_part(msgview);
 582
 583         /* this command will alter the message text */
 584         action_type = action_get_type(action);
 585         if (action_type & (ACTION_PIPE_OUT | ACTION_INSERT))
 586                 msgview->filtered = TRUE;
 587
 588         if (action_type & ACTION_FILTERING_ACTION)
 589                 /* CLAWS: most of the above code is not necessary for applying
 590                  * filtering */
 591                 execute_filtering_actions(action, msg_list);
 592         else
 593                 execute_actions(action, msg_list, text, body_pos, partinfo,
 594                         NULL, NULL);
 595 }
 596
 597 static gboolean execute_filtering_actions(gchar *action, GSList *msglist)
 598 {
 599         GSList *action_list, *p;
 600         const gchar *sbegin, *send;
 601         gchar *action_string;
 602         SummaryView *summaryview = NULL;
 603         MainWindow *mainwin = NULL;
 604
 605         if (mainwindow_get_mainwindow()) {
 606                 summaryview = mainwindow_get_mainwindow()->summaryview;
 607                 mainwin = mainwindow_get_mainwindow();
 608         }
 609
 610         if (NULL == (sbegin = strstr2(action, "%as{")))
 611                 return FALSE;
 612         sbegin += sizeof "%as{" - 1;
 613         if (NULL == (send = strrchr(sbegin, '}')))
 614                 return FALSE;
 615         action_string = g_strndup(sbegin, send - sbegin);
 616
 617         action_list = matcher_parser_get_action_list(action_string);
 618         if (action_list == NULL) {
 619                 gchar *tmp = g_strdup(action_string);
 620
 621                 g_strstrip(tmp);
 622                 if (*tmp == '\0')
 623                         alertpanel_error(_("There is no filtering action set"));
 624                 else
 625                         alertpanel_error(_("Invalid filtering action(s):\n%s"), tmp);
 626                 g_free(action_string);
 627                 g_free(tmp);
 628                 return FALSE;
 629         }
 630         g_free(action_string);
 631
 632         /* apply actions on each message info */
 633         for (p = msglist; p && p->data; p = g_slist_next(p)) {
 634                 filteringaction_apply_action_list(action_list, (MsgInfo *) p->data);
 635         }
 636
 637         if (summaryview) {
 638                 summary_lock(summaryview);
 639                 main_window_cursor_wait(mainwin);
 640                 summary_freeze(summaryview);
 641                 folder_item_update_freeze();
 642         }
 643
 644         filtering_move_and_copy_msgs(msglist);
 645
 646         if (summaryview) {
 647                 folder_item_update_thaw();
 648                 summary_thaw(summaryview);
 649                 main_window_cursor_normal(mainwin);
 650                 summary_unlock(summaryview);
 651                 summary_show(summaryview, summaryview->folder_item);
 652         }
 653         for (p = action_list; p; p = g_slist_next(p))
 654                 if (p->data) filteringaction_free(p->data);
 655         g_slist_free(action_list);
 656         return TRUE;
 657 }
 658
 659 static gboolean execute_actions(gchar *action, GSList *msg_list,
 660                                 GtkWidget *text,
 661                                 gint body_pos, MimeInfo *partinfo,
 662                                 void (*callback)(void *data), void *data)
 663 {
 664         GSList *children_list = NULL;
 665         gint is_ok  = TRUE;
 666         gint msg_list_len;
 667         Children *children;
 668         ChildInfo *child_info;
 669         ActionType action_type;
 670         MsgInfo *msginfo;
 671         gchar *cmd;
 672         gchar *sel_str = NULL;
 673         gchar *msg_str = NULL;
 674         gchar *user_str = NULL;
 675         gchar *user_hidden_str = NULL;
 676         GtkTextIter start_iter, end_iter;
 677         gboolean is_selection = FALSE;
 678
 679         g_return_val_if_fail(action && *action, FALSE);
 680
 681         action_type = action_get_type(action);
 682
 683         if (action_type == ACTION_ERROR)
 684                 return FALSE;         /* ERR: syntax error */
 685
 686         if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE) && !msg_list)
 687                 return FALSE;         /* ERR: file command without selection */
 688
 689         msg_list_len = g_slist_length(msg_list);
 690
 691         if (action_type & (ACTION_PIPE_OUT | ACTION_PIPE_IN | ACTION_INSERT)) {
 692                 if (msg_list_len > 1)
 693                         return FALSE; /* ERR: pipe + multiple selection */
 694                 if (!text)
 695                         return FALSE; /* ERR: pipe and no displayed text */
 696         }
 697
 698         if (action_type & ACTION_SELECTION_STR) {
 699                 if (!text)
 700                         return FALSE; /* ERR: selection string but no text */
 701         }
 702
 703         if (text) {
 704                 GtkTextBuffer *textbuf;
 705
 706                 textbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 707                 is_selection = gtk_text_buffer_get_selection_bounds
 708                         (textbuf, &start_iter, &end_iter);
 709                 if (!is_selection) {
 710                         gtk_text_buffer_get_iter_at_offset
 711                                 (textbuf, &start_iter, body_pos);
 712                         gtk_text_buffer_get_end_iter(textbuf, &end_iter);
 713                 }
 714                 msg_str = gtk_text_buffer_get_text
 715                         (textbuf, &start_iter, &end_iter, FALSE);
 716                 if (is_selection)
 717                         sel_str = g_strdup(msg_str);
 718         }
 719
 720         if (action_type & ACTION_USER_STR) {
 721                 if (!(user_str = get_user_string(action, ACTION_USER_STR))) {
 722                         g_free(msg_str);
 723                         g_free(sel_str);
 724                         return FALSE;
 725                 }
 726         }
 727
 728         if (action_type & ACTION_USER_HIDDEN_STR) {
 729                 if (!(user_hidden_str =
 730                         get_user_string(action, ACTION_USER_HIDDEN_STR))) {
 731                         g_free(msg_str);
 732                         g_free(sel_str);
 733                         g_free(user_str);
 734                         return FALSE;
 735                 }
 736         }
 737
 738         if (text && (action_type & ACTION_PIPE_OUT)) {
 739                 GtkTextBuffer *textbuf;
 740                 textbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 741                 gtk_text_buffer_delete(textbuf, &start_iter, &end_iter);
 742         }
 743
 744         children = g_new0(Children, 1);
 745
 746         children->action      = g_strdup(action);
 747         children->action_type = action_type;
 748         children->msg_text    = text;
 749         children->is_selection = is_selection;
 750
 751         if ((action_type & (ACTION_USER_IN | ACTION_USER_HIDDEN_IN)) &&
 752             ((action_type & ACTION_SINGLE) == 0 || msg_list_len == 1))
 753                 children->open_in = 1;
 754
 755         if (action_type & ACTION_SINGLE) {
 756                 GSList *cur;
 757
 758                 for (cur = msg_list; cur && is_ok == TRUE; cur = cur->next) {
 759                         msginfo = (MsgInfo *)cur->data;
 760                         if (!msginfo) {
 761                                 is_ok  = FALSE; /* ERR: msginfo missing */
 762                                 break;
 763                         }
 764                         cmd = parse_action_cmd(action, msginfo, msg_list,
 765                                                partinfo, user_str,
 766                                                user_hidden_str, sel_str);
 767                         if (!cmd) {
 768                                 debug_print("Action command error\n");
 769                                 is_ok  = FALSE; /* ERR: incorrect command */
 770                                 break;
 771                         }
 772                         if ((child_info = fork_child(cmd, msg_str, children))) {
 773                                 /* Pass msginfo to catch_status () */
 774                                 if (!(action_type & (ACTION_PIPE_OUT | ACTION_INSERT)))
 775                                         child_info->msginfo_list =
 776                                                 g_slist_append (NULL, msginfo);
 777                                 children_list = g_slist_append(children_list,
 778                                                                child_info);
 779                         }
 780                         g_free(cmd);
 781                 }
 782         } else {
 783                 cmd = parse_action_cmd(action, NULL, msg_list, partinfo,
 784                                        user_str, user_hidden_str, sel_str);
 785                 if (cmd) {
 786                         if ((child_info = fork_child(cmd, msg_str, children))) {
 787                                 if (!(action_type & (ACTION_PIPE_OUT | ACTION_INSERT)))
 788                                         child_info->msginfo_list =
 789                                                 g_slist_copy (msg_list);
 790                                 children_list = g_slist_append(children_list,
 791                                                                 child_info);
 792                         }
 793                         g_free(cmd);
 794                 } else
 795                         is_ok  = FALSE;         /* ERR: incorrect command */
 796         }
 797
 798         g_free(msg_str);
 799         g_free(sel_str);
 800         g_free(user_str);
 801         g_free(user_hidden_str);
 802
 803         if (!children_list) {
 804                  /* If not waiting for children, return */
 805                 free_children(children);
 806         } else {
 807                 GSList *cur;
 808
 809                 children->list        = children_list;
 810                 children->nb          = g_slist_length(children_list);
 811                 children->initial_nb  = children->nb;
 812
 813                 for (cur = children_list; cur; cur = cur->next) {
 814                         child_info = (ChildInfo *) cur->data;
 815                         child_info->callback = callback;
 816                         child_info->data = data;
 817                         child_info->tag_status =
 818                                 gdk_input_add(child_info->chld_status,
 819                                               GDK_INPUT_READ,
 820                                               catch_status, child_info);
 821                 }
 822
 823                 create_io_dialog(children);
 824         }
 825         return is_ok;
 826 }
 827
 828 static ChildInfo *fork_child(gchar *cmd, const gchar *msg_str,
 829                              Children *children)
 830 {
 831 #ifdef G_OS_UNIX
 832         gint chld_in[2], chld_out[2], chld_err[2], chld_status[2];
 833         gchar *cmdline[4], *ret_str;
 834         pid_t pid, gch_pid;
 835         ChildInfo *child_info;
 836         gint sync;
 837         gssize by_written = 0, by_read = 0;
 838
 839         sync = !(children->action_type & ACTION_ASYNC);
 840
 841         chld_in[0] = chld_in[1] = chld_out[0] = chld_out[1] = chld_err[0]
 842                 = chld_err[1] = chld_status[0] = chld_status[1] = -1;
 843
 844         if (sync) {
 845                 if (pipe(chld_status) || pipe(chld_in) || pipe(chld_out) ||
 846                     pipe(chld_err)) {
 847                         alertpanel_error(_("Command could not be started. "
 848                                            "Pipe creation failed.\n%s"),
 849                                         g_strerror(errno));
 850                         /* Closing fd = -1 fails silently */
 851                         (void)close(chld_in[0]);
 852                         (void)close(chld_in[1]);
 853                         (void)close(chld_out[0]);
 854                         (void)close(chld_out[1]);
 855                         (void)close(chld_err[0]);
 856                         (void)close(chld_err[1]);
 857                         (void)close(chld_status[0]);
 858                         (void)close(chld_status[1]);
 859                         return NULL; /* Pipe error */
 860                 }
 861         }
 862
 863         debug_print("Forking child and grandchild.\n");
 864         debug_print("Executing: /bin/sh -c %s\n", cmd);
 865
 866         pid = fork();
 867         if (pid == 0) { /* Child */
 868                 if (setpgid(0, 0))
 869                         perror("setpgid");
 870
 871 #ifdef GDK_WINDOWING_X11
 872                 (void)close(ConnectionNumber(gdk_display));
 873 #endif /* GDK_WINDOWING_X11 */
 874
 875                 gch_pid = fork();
 876
 877                 if (gch_pid == 0) {
 878                         if (setpgid(0, getppid()))
 879                                 perror("setpgid");
 880
 881                         if (sync) {
 882                                 if (children->action_type &
 883                                     (ACTION_PIPE_IN |
 884                                      ACTION_USER_IN |
 885                                      ACTION_USER_HIDDEN_IN)) {
 886                                         (void)close(fileno(stdin));
 887                                         (void)dup  (chld_in[0]);
 888                                 }
 889                                 (void)close(chld_in[0]);
 890                                 (void)close(chld_in[1]);
 891
 892                                 (void)close(fileno(stdout));
 893                                 (void)dup  (chld_out[1]);
 894                                 (void)close(chld_out[0]);
 895                                 (void)close(chld_out[1]);
 896
 897                                 (void)close(fileno(stderr));
 898                                 (void)dup  (chld_err[1]);
 899                                 (void)close(chld_err[0]);
 900                                 (void)close(chld_err[1]);
 901                         }
 902
 903                         cmdline[0] = "sh";
 904                         cmdline[1] = "-c";
 905                         ret_str = g_locale_from_utf8(cmd, strlen(cmd),
 906                                                      &by_read, &by_written,
 907                                                      NULL);
 908                         if (ret_str && by_written)
 909                                 cmdline[2] = ret_str;
 910                         else
 911                                 cmdline[2] = cmd;
 912                         cmdline[3] = NULL;
 913                         execvp("/bin/sh", cmdline);
 914
 915                         perror("execvp");
 916                         g_free(ret_str);
 917                         _exit(1);
 918                 } else if (gch_pid < (pid_t) 0) { /* Fork error */
 919                         if (sync)
 920                                 (void)write(chld_status[1], "1\n", 2);
 921                         perror("fork");
 922                         _exit(1);
 923                 } else { /* Child */
 924                         if (sync) {
 925                                 (void)close(chld_in[0]);
 926                                 (void)close(chld_in[1]);
 927                                 (void)close(chld_out[0]);
 928                                 (void)close(chld_out[1]);
 929                                 (void)close(chld_err[0]);
 930                                 (void)close(chld_err[1]);
 931                                 (void)close(chld_status[0]);
 932
 933                                 debug_print("Child: waiting for grandchild\n");
 934                                 waitpid(gch_pid, NULL, 0);
 935                                 debug_print("Child: grandchild ended\n");
 936                                 (void)write(chld_status[1], "0\n", 2);
 937                                 (void)close(chld_status[1]);
 938                         }
 939                         _exit(0);
 940                 }
 941         } else if (pid < 0) { /* Fork error */
 942                 alertpanel_error(_("Could not fork to execute the following "
 943                                    "command:\n%s\n%s"),
 944                                  cmd, g_strerror(errno));
 945                 return NULL;
 946         }
 947
 948         /* Parent */
 949
 950         if (!sync) {
 951                 waitpid(pid, NULL, 0);
 952                 return NULL;
 953         }
 954
 955         (void)close(chld_in[0]);
 956         if (!(children->action_type &
 957               (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 958                 (void)close(chld_in[1]);
 959         (void)close(chld_out[1]);
 960         (void)close(chld_err[1]);
 961         (void)close(chld_status[1]);
 962
 963         child_info = g_new0(ChildInfo, 1);
 964
 965         child_info->children    = children;
 966
 967         child_info->pid         = pid;
 968         child_info->cmd         = g_strdup(cmd);
 969         child_info->new_out     = FALSE;
 970         child_info->output      = g_string_new(NULL);
 971         child_info->chld_in     =
 972                 (children->action_type &
 973                  (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN))
 974                         ? chld_in [1] : -1;
 975         child_info->chld_out    = chld_out[0];
 976         child_info->chld_err    = chld_err[0];
 977         child_info->chld_status = chld_status[0];
 978         child_info->tag_in      = -1;
 979         child_info->tag_out     = gdk_input_add(chld_out[0], GDK_INPUT_READ,
 980                                                 catch_output, child_info);
 981         child_info->tag_err     = gdk_input_add(chld_err[0], GDK_INPUT_READ,
 982                                                 catch_output, child_info);
 983
 984         if (!(children->action_type &
 985               (ACTION_PIPE_IN | ACTION_PIPE_OUT | ACTION_INSERT)))
 986                 return child_info;
 987
 988         if ((children->action_type & ACTION_PIPE_IN) && msg_str) {
 989                 ret_str = g_locale_from_utf8(msg_str, strlen(msg_str),
 990                                              &by_read, &by_written, NULL);
 991                 if (ret_str && by_written) {
 992                         (void)write(chld_in[1], ret_str, strlen(ret_str));
 993                         g_free(ret_str);
 994                 } else
 995                         (void)write(chld_in[1], msg_str, strlen(msg_str));
 996                 if (!(children->action_type &
 997                       (ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 998                         (void)close(chld_in[1]);
 999                 child_info->chld_in = -1; /* No more input */
1000         }
1001
1002         return child_info;
1003 #else
1004         return NULL;
1005 #endif /* G_OS_UNIX */
1006 }
1007
1008 static void kill_children_cb(GtkWidget *widget, gpointer data)
1009 {
1010 #ifdef G_OS_UNIX
1011         GSList *cur;
1012         Children *children = (Children *) data;
1013         ChildInfo *child_info;
1014
1015         for (cur = children->list; cur; cur = cur->next) {
1016                 child_info = (ChildInfo *)(cur->data);
1017                 debug_print("Killing child group id %d\n", child_info->pid);
1018                 if (child_info->pid && kill(-child_info->pid, SIGTERM) < 0)
1019                         perror("kill");
1020         }
1021 #endif /* G_OS_UNIX */
1022 }
1023
1024 static gint wait_for_children(Children *children)
1025 {
1026         gboolean new_output;
1027         ChildInfo *child_info;
1028         GSList *cur;
1029         gint nb = children->nb;
1030
1031         children->nb = 0;
1032
1033         cur = children->list;
1034         new_output = FALSE;
1035         while (cur) {
1036                 child_info = (ChildInfo *)cur->data;
1037                 if (child_info->pid)
1038                         children->nb++;
1039                 new_output |= child_info->new_out;
1040                 cur = cur->next;
1041         }
1042
1043         children->output |= new_output;
1044
1045         if (new_output || (children->dialog && (nb != children->nb)))
1046                 update_io_dialog(children);
1047
1048         if (children->nb)
1049                 return FALSE;
1050
1051         if (!children->dialog) {
1052                 free_children(children);
1053         } else if (!children->output) {
1054                 gtk_widget_destroy(children->dialog);
1055         }
1056
1057         return FALSE;
1058 }
1059
1060 static void send_input(GtkWidget *w, gpointer data)
1061 {
1062         Children *children = (Children *) data;
1063         ChildInfo *child_info = (ChildInfo *) children->list->data;
1064
1065         child_info->tag_in = gdk_input_add(child_info->chld_in,
1066                                            GDK_INPUT_WRITE,
1067                                            catch_input, children);
1068 }
1069
1070 static gint delete_io_dialog_cb(GtkWidget *w, GdkEvent *e, gpointer data)
1071 {
1072         hide_io_dialog_cb(w, data);
1073         return TRUE;
1074 }
1075
1076 static void hide_io_dialog_cb(GtkWidget *w, gpointer data)
1077 {
1078
1079         Children *children = (Children *)data;
1080
1081         if (!children->nb) {
1082                 g_signal_handlers_disconnect_matched
1083                         (G_OBJECT(children->dialog), G_SIGNAL_MATCH_DATA,
1084                          0, 0, NULL, NULL, children);
1085                 gtk_widget_destroy(children->dialog);
1086                 free_children(children);
1087         }
1088 }
1089
1090 static gint io_dialog_key_pressed_cb(GtkWidget *widget, GdkEventKey *event,
1091                                      gpointer data)
1092 {
1093         if (event && (event->keyval == GDK_Escape ||
1094                       event->keyval == GDK_Return ||
1095                           event->keyval == GDK_KP_Enter))
1096                 hide_io_dialog_cb(widget, data);
1097         return TRUE;
1098 }
1099
1100 static void childinfo_close_pipes(ChildInfo *child_info)
1101 {
1102         /* stdout and stderr pipes are guaranteed to be removed by
1103          * their handler, but in case where we receive child exit notification
1104          * before grand-child's pipes closing signals, we check them and close
1105          * them if necessary
1106          */
1107         if (child_info->tag_in > 0)
1108                 gdk_input_remove(child_info->tag_in);
1109         if (child_info->tag_out > 0)
1110                 gdk_input_remove(child_info->tag_out);
1111         if (child_info->tag_err > 0)
1112                 gdk_input_remove(child_info->tag_err);
1113
1114         if (child_info->chld_in >= 0)
1115                 (void)close(child_info->chld_in);
1116         if (child_info->chld_out >= 0)
1117                 (void)close(child_info->chld_out);
1118         if (child_info->chld_err >= 0)
1119                 (void)close(child_info->chld_err);
1120
1121         (void)close(child_info->chld_status);
1122 }
1123
1124 static void free_children(Children *children)
1125 {
1126         ChildInfo *child_info;
1127         void (*callback)(void *data) = NULL;
1128         void *data = NULL;
1129
1130         debug_print("Freeing children data %p\n", children);
1131
1132         g_free(children->action);
1133         while (children->list != NULL) {
1134                 child_info = (ChildInfo *)children->list->data;
1135                 g_free(child_info->cmd);
1136                 g_string_free(child_info->output, TRUE);
1137                 children->list = g_slist_remove(children->list, child_info);
1138                 callback = child_info->callback;
1139                 data = child_info->data;
1140                 g_free(child_info);
1141         }
1142
1143         if (callback)
1144                 callback(data);
1145
1146         g_free(children);
1147 }
1148
1149 static void update_io_dialog(Children *children)
1150 {
1151         GSList *cur;
1152
1153         debug_print("Updating actions input/output dialog.\n");
1154
1155         if (children->progress_bar) {
1156                 gchar *text;
1157
1158                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(children->progress_bar),
1159                                                   (children->initial_nb == 0) ? 0 :
1160                                               (gdouble) (children->initial_nb - children->nb) /
1161                                               (gdouble) children->initial_nb);
1162                 text = g_strdup_printf("%s %d/%d", _("Completed"),
1163                                        children->initial_nb - children->nb,
1164                                        children->initial_nb);
1165                 gtk_progress_bar_set_text(GTK_PROGRESS_BAR(children->progress_bar), text);
1166                 g_free(text);
1167         }
1168
1169         if (!children->nb) {
1170                 gtk_widget_set_sensitive(children->abort_btn, FALSE);
1171                 gtk_widget_set_sensitive(children->close_btn, TRUE);
1172                 if (children->input_hbox)
1173                         gtk_widget_set_sensitive(children->input_hbox, FALSE);
1174                 gtk_widget_grab_focus(children->close_btn);
1175                 g_signal_connect(G_OBJECT(children->dialog),
1176                                  "key_press_event",
1177                                  G_CALLBACK(io_dialog_key_pressed_cb),
1178                                  children);
1179         }
1180
1181         if (children->output) {
1182                 GtkWidget *text = children->text;
1183                 GtkTextBuffer *textbuf;
1184                 GtkTextIter iter, start_iter, end_iter;
1185                 gchar *caption;
1186                 ChildInfo *child_info;
1187
1188                 gtk_widget_show(children->scrolledwin);
1189                 textbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
1190                 gtk_text_buffer_get_bounds(textbuf, &start_iter, &end_iter);
1191                 gtk_text_buffer_delete(textbuf, &start_iter, &end_iter);
1192                 gtk_text_buffer_get_start_iter(textbuf, &iter);
1193
1194                 for (cur = children->list; cur; cur = cur->next) {
1195                         child_info = (ChildInfo *)cur->data;
1196                         if (child_info->pid)
1197                                 caption = g_strdup_printf
1198                                         (_("--- Running: %s\n"),
1199                                          child_info->cmd);
1200                         else
1201                                 caption = g_strdup_printf
1202                                         (_("--- Ended: %s\n"),
1203                                          child_info->cmd);
1204
1205                         gtk_text_buffer_insert(textbuf, &iter, caption, -1);
1206                         gtk_text_buffer_insert(textbuf, &iter,
1207                                                child_info->output->str, -1);
1208                         g_free(caption);
1209                         child_info->new_out = FALSE;
1210                 }
1211         }
1212 }
1213
1214 static void create_io_dialog(Children *children)
1215 {
1216         GtkWidget *dialog;
1217         GtkWidget *vbox;
1218         GtkWidget *entry = NULL;
1219         GtkWidget *input_hbox = NULL;
1220         GtkWidget *send_button;
1221         GtkWidget *label;
1222         GtkWidget *text;
1223         GtkWidget *scrolledwin;
1224         GtkWidget *hbox;
1225         GtkWidget *progress_bar = NULL;
1226         GtkWidget *abort_button;
1227         GtkWidget *close_button;
1228
1229         debug_print("Creating action IO dialog\n");
1230
1231         dialog = gtk_dialog_new();
1232         gtk_container_set_border_width
1233                 (GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 5);
1234         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
1235         gtk_window_set_title(GTK_WINDOW(dialog), _("Action's input/output"));
1236         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
1237         manage_window_set_transient(GTK_WINDOW(dialog));
1238         g_signal_connect(G_OBJECT(dialog), "delete_event",
1239                          G_CALLBACK(delete_io_dialog_cb), children);
1240         g_signal_connect(G_OBJECT(dialog), "destroy",
1241                          G_CALLBACK(hide_io_dialog_cb),
1242                          children);
1243
1244         vbox = gtk_vbox_new(FALSE, 8);
1245         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), vbox);
1246         gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
1247         gtk_widget_show(vbox);
1248
1249         label = gtk_label_new(children->action);
1250         gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
1251         gtk_widget_show(label);
1252
1253         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
1254         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
1255                                        GTK_POLICY_AUTOMATIC,
1256                                        GTK_POLICY_AUTOMATIC);
1257         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
1258                                             GTK_SHADOW_IN);
1259         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
1260         gtk_widget_set_size_request(scrolledwin, 560, 200);
1261         gtk_widget_hide(scrolledwin);
1262
1263         text = gtk_text_view_new();
1264
1265         if (prefs_common.textfont) {
1266                 PangoFontDescription *font_desc;
1267                 font_desc = pango_font_description_from_string
1268                         (prefs_common.textfont);
1269                 if (font_desc) {
1270                         gtk_widget_modify_font(text, font_desc);
1271                         pango_font_description_free(font_desc);
1272                 }
1273         }
1274
1275         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
1276         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD);
1277         gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
1278         gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
1279         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
1280         gtk_widget_show(text);
1281
1282         if (children->open_in) {
1283                 input_hbox = gtk_hbox_new(FALSE, 8);
1284                 gtk_widget_show(input_hbox);
1285
1286                 entry = gtk_entry_new();
1287                 gtk_widget_set_size_request(entry, 320, -1);
1288                 g_signal_connect(G_OBJECT(entry), "activate",
1289                                  G_CALLBACK(send_input), children);
1290                 gtk_box_pack_start(GTK_BOX(input_hbox), entry, TRUE, TRUE, 0);
1291                 if (children->action_type & ACTION_USER_HIDDEN_IN) {
1292                         gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE);
1293 #ifdef MAEMO
1294                         hildon_gtk_entry_set_input_mode(GTK_ENTRY(entry),
1295                                 HILDON_GTK_INPUT_MODE_FULL |
1296                                 HILDON_GTK_INPUT_MODE_INVISIBLE);
1297 #endif
1298                 }
1299                 gtk_widget_show(entry);
1300
1301                 send_button = gtk_button_new_from_stock(GTK_STOCK_EXECUTE);
1302                 g_signal_connect(G_OBJECT(send_button), "clicked",
1303                                  G_CALLBACK(send_input), children);
1304                 gtk_box_pack_start(GTK_BOX(input_hbox), send_button, FALSE,
1305                                    FALSE, 0);
1306                 gtk_widget_show(send_button);
1307
1308                 gtk_box_pack_start(GTK_BOX(vbox), input_hbox, FALSE, FALSE, 0);
1309                 gtk_widget_grab_focus(entry);
1310         }
1311
1312         if (children->initial_nb > 1) {
1313                 gchar * text;
1314
1315                 progress_bar = gtk_progress_bar_new();
1316                 gtk_progress_bar_set_orientation(GTK_PROGRESS_BAR(progress_bar),
1317                                 GTK_PROGRESS_LEFT_TO_RIGHT);
1318                 text = g_strdup_printf("%s 0/%d\n", _("Completed"),
1319                                        children->initial_nb);
1320                 gtk_progress_bar_set_text(GTK_PROGRESS_BAR(progress_bar),
1321                                           text);
1322                 g_free(text);
1323                 gtk_box_pack_start(GTK_BOX(vbox), progress_bar, FALSE, FALSE, 0);
1324                 gtk_widget_show(progress_bar);
1325         }
1326
1327         gtkut_stock_button_set_create(&hbox, &abort_button, GTK_STOCK_STOP,
1328                                       &close_button, GTK_STOCK_CLOSE, NULL, NULL);
1329         g_signal_connect(G_OBJECT(abort_button), "clicked",
1330                          G_CALLBACK(kill_children_cb), children);
1331         g_signal_connect(G_OBJECT(close_button), "clicked",
1332                          G_CALLBACK(hide_io_dialog_cb), children);
1333         gtk_widget_show(hbox);
1334
1335         if (children->nb)
1336                 gtk_widget_set_sensitive(close_button, FALSE);
1337
1338         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), hbox);
1339
1340         children->dialog       = dialog;
1341         children->scrolledwin  = scrolledwin;
1342         children->text         = text;
1343         children->input_hbox   = children->open_in ? input_hbox : NULL;
1344         children->input_entry  = children->open_in ? entry : NULL;
1345         children->progress_bar = progress_bar;
1346         children->abort_btn    = abort_button;
1347         children->close_btn    = close_button;
1348
1349         gtk_widget_show(dialog);
1350 }
1351
1352 static void catch_status(gpointer data, gint source, GdkInputCondition cond)
1353 {
1354         ChildInfo *child_info = (ChildInfo *)data;
1355         gchar buf;
1356         gint c;
1357
1358         gdk_input_remove(child_info->tag_status);
1359
1360         c = read(source, &buf, 1);
1361         debug_print("Child returned %c\n", buf);
1362
1363 #ifdef G_OS_UNIX
1364         waitpid(-child_info->pid, NULL, 0);
1365 #endif
1366         childinfo_close_pipes(child_info);
1367         child_info->pid = 0;
1368
1369         if (child_info->children->action_type & (ACTION_SINGLE | ACTION_MULTIPLE)
1370             && child_info->msginfo_list) {
1371                 /* Actions on message *files* might change size and
1372                 * time stamp, and thus invalidate the cache */
1373                 SummaryView *summaryview  = NULL;
1374                 GSList      *cur;
1375                 MsgInfo     *msginfo, *nmi;     /* newmsginfo */
1376                 char        *file;
1377                 gboolean     modified_something = FALSE;
1378                 FolderItem  *last_item = NULL;
1379                 if (mainwindow_get_mainwindow ())
1380                         summaryview = mainwindow_get_mainwindow ()->summaryview;
1381                 for (cur = child_info->msginfo_list; cur; cur = cur->next) {
1382                         msginfo = (MsgInfo *)cur->data;
1383                         if (!(msginfo && /* Stuff used valid? */
1384                             msginfo->folder && msginfo->folder->cache))
1385                                 continue;
1386                         file = procmsg_get_message_file_path (msginfo);
1387                         if (!file)
1388                                 continue;
1389                         nmi = procheader_parse_file (file, msginfo->flags, TRUE, FALSE);
1390                         if (!nmi)
1391                                 continue; /* Deleted? */
1392                         if (msginfo->mtime != nmi->mtime || msginfo->size != nmi->size) {
1393                                 nmi->folder = msginfo->folder;
1394                                 nmi->msgnum = msginfo->msgnum;
1395                                 msgcache_update_msg (msginfo->folder->cache, nmi);
1396                                 modified_something = TRUE;
1397                                 last_item = nmi->folder;
1398                         }
1399                         procmsg_msginfo_free (nmi);
1400                         if (summaryview && summaryview->displayed &&
1401                             summaryview->folder_item == msginfo->folder &&
1402                             summary_get_msgnum(summaryview, summaryview->displayed) == msginfo->msgnum)
1403                                 summary_redisplay_msg(summaryview);
1404
1405                 }
1406                 if (modified_something && last_item &&
1407                     summaryview && summaryview->folder_item == last_item) {
1408                         summary_show (summaryview, summaryview->folder_item);
1409                 }
1410                 g_slist_free (child_info->msginfo_list);
1411                 child_info->msginfo_list = NULL;
1412         }
1413
1414         wait_for_children(child_info->children);
1415 }
1416
1417 static void catch_input(gpointer data, gint source, GdkInputCondition cond)
1418 {
1419         Children *children = (Children *)data;
1420         ChildInfo *child_info = (ChildInfo *)children->list->data;
1421         gchar *input, *ret_str;
1422         gint c, count, len;
1423         gssize by_read = 0, by_written = 0;
1424
1425         debug_print("Sending input to grand child.\n");
1426         if (!(cond && GDK_INPUT_WRITE))
1427                 return;
1428
1429         gtk_widget_set_sensitive(children->input_hbox, FALSE);
1430         gtk_widget_grab_focus(children->abort_btn);
1431
1432         gdk_input_remove(child_info->tag_in);
1433         child_info->tag_in = -1;
1434
1435         input = gtk_editable_get_chars(GTK_EDITABLE(children->input_entry),
1436                                        0, -1);
1437         ret_str = g_locale_from_utf8(input, strlen(input), &by_read,
1438                                      &by_written, NULL);
1439         if (ret_str && by_written) {
1440                 g_free(input);
1441                 input = ret_str;
1442         }
1443
1444         len = strlen(input);
1445         count = 0;
1446
1447         do {
1448                 c = write(child_info->chld_in, input + count, len - count);
1449                 if (c >= 0)
1450                         count += c;
1451         } while (c >= 0 && count < len);
1452
1453         if (c >= 0)
1454                 (void)write(child_info->chld_in, "\n", 2);
1455
1456         g_free(input);
1457
1458         (void)close(child_info->chld_in);
1459         child_info->chld_in = -1;
1460         debug_print("Input to grand child sent.\n");
1461 }
1462
1463 static void catch_output(gpointer data, gint source, GdkInputCondition cond)
1464 {
1465         ChildInfo *child_info = (ChildInfo *)data;
1466         gint c;
1467         gchar buf[BUFFSIZE];
1468
1469         debug_print("Catching grand child's output.\n");
1470         if (child_info->children->action_type &
1471             (ACTION_PIPE_OUT | ACTION_INSERT)
1472             && source == child_info->chld_out) {
1473                 GtkTextView *text =
1474                         GTK_TEXT_VIEW(child_info->children->msg_text);
1475                 GtkTextBuffer *textbuf = gtk_text_view_get_buffer(text);
1476                 GtkTextIter iter;
1477                 GtkTextMark *mark;
1478                 gint ins_pos;
1479
1480                 mark = gtk_text_buffer_get_insert(textbuf);
1481                 gtk_text_buffer_get_iter_at_mark(textbuf, &iter, mark);
1482                 ins_pos = gtk_text_iter_get_offset(&iter);
1483
1484                 while (TRUE) {
1485                         gsize bytes_read = 0, bytes_written = 0;
1486                         gchar *ret_str;
1487
1488                         c = read(source, buf, sizeof(buf) - 1);
1489                         if (c == 0)
1490                                 break;
1491
1492                         ret_str = g_locale_to_utf8
1493                                 (buf, c, &bytes_read, &bytes_written, NULL);
1494                         if (ret_str && bytes_written > 0) {
1495                                 gtk_text_buffer_insert
1496                                         (textbuf, &iter, ret_str,
1497                                          -1);
1498                                 g_free(ret_str);
1499                         } else
1500                                 gtk_text_buffer_insert(textbuf, &iter, buf, c);
1501                 }
1502
1503                 if (child_info->children->is_selection) {
1504                         GtkTextIter ins;
1505
1506                         gtk_text_buffer_get_iter_at_offset
1507                                 (textbuf, &ins, ins_pos);
1508                         gtk_text_buffer_select_range(textbuf, &ins, &iter);
1509                 }
1510         } else {
1511                 c = read(source, buf, sizeof(buf) - 1);
1512                 if (c > 0) {
1513                         gsize bytes_read = 0, bytes_written = 0;
1514                         gchar *ret_str;
1515
1516                         ret_str = g_locale_to_utf8
1517                                 (buf, c, &bytes_read, &bytes_written, NULL);
1518                         if (ret_str && bytes_written > 0) {
1519                                 g_string_append_len
1520                                         (child_info->output, ret_str,
1521                                          bytes_written);
1522                                 g_free(ret_str);
1523                         } else
1524                                 g_string_append_len(child_info->output, buf, c);
1525
1526                         child_info->new_out = TRUE;
1527                 }
1528         }
1529         if (c == 0) {
1530                 if (source == child_info->chld_out) {
1531                         gdk_input_remove(child_info->tag_out);
1532                         child_info->tag_out = -1;
1533                         (void)close(child_info->chld_out);
1534                         child_info->chld_out = -1;
1535                 } else {
1536                         gdk_input_remove(child_info->tag_err);
1537                         child_info->tag_err = -1;
1538                         (void)close(child_info->chld_err);
1539                         child_info->chld_err = -1;
1540                 }
1541         }
1542
1543         wait_for_children(child_info->children);
1544 }
1545
1546 static gchar *get_user_string(const gchar *action, ActionType type)
1547 {
1548         gchar *message;
1549         gchar *user_str = NULL;
1550
1551         switch (type) {
1552         case ACTION_USER_HIDDEN_STR:
1553                 message = g_strdup_printf
1554                         (_("Enter the argument for the following action:\n"
1555                            "('%%h' will be replaced with the argument)\n"
1556                            "  %s"),
1557                          action);
1558                 user_str = input_dialog_with_invisible
1559                         (_("Action's hidden user argument"), message, NULL);
1560                 break;
1561         case ACTION_USER_STR:
1562                 message = g_strdup_printf
1563                         (_("Enter the argument for the following action:\n"
1564                            "('%%u' will be replaced with the argument)\n"
1565                            "  %s"),
1566                          action);
1567                 user_str = input_dialog
1568                         (_("Action's user argument"), message, NULL);
1569                 break;
1570         default:
1571                 g_warning("Unsupported action type %d", type);
1572         }
1573
1574         return user_str;
1575 }