src/action.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto & The Sylpheed Claws 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 2 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, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  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                         default:
 240                                 action_type = ACTION_ERROR;
 241                                 break;
 242                         }
 243                 } else if (p[0] == '|') {
 244                         if (p[1] == '\0')
 245                                 action_type |= ACTION_PIPE_OUT;
 246                 } else if (p[0] == '>') {
 247                         if (p[1] == '\0')
 248                                 action_type |= ACTION_INSERT;
 249                 } else if (p[0] == '&') {
 250                         if (p[1] == '\0')
 251                                 action_type |= ACTION_ASYNC;
 252                 }
 253                 p++;
 254         }
 255
 256         return action_type;
 257 }
 258
 259 static gchar *parse_action_cmd(gchar *action, MsgInfo *msginfo,
 260                                GSList *msg_list, MimeInfo *partinfo,
 261                                const gchar *user_str,
 262                                const gchar *user_hidden_str,
 263                                const gchar *sel_str)
 264 {
 265         GString *cmd;
 266         gchar *p;
 267         GSList *cur;
 268
 269         p = action;
 270
 271         if (p[0] == '|' || p[0] == '>' || p[0] == '*')
 272                 p++;
 273
 274         cmd = g_string_sized_new(strlen(action));
 275
 276         while (p[0] &&
 277                !((p[0] == '|' || p[0] == '>' || p[0] == '&') && !p[1])) {
 278                 if (p[0] == '%' && p[1]) {
 279                         switch (p[1]) {
 280                         case 'f':
 281                                 if (!parse_append_filename(cmd, msginfo)) {
 282                                         g_string_free(cmd, TRUE);
 283                                         return NULL;
 284                                 }
 285                                 p++;
 286                                 break;
 287                         case 'F':
 288                                 for (cur = msg_list; cur != NULL;
 289                                      cur = cur->next) {
 290                                         MsgInfo *msg = (MsgInfo *)cur->data;
 291
 292                                         if (!parse_append_filename(cmd, msg)) {
 293                                                 g_string_free(cmd, TRUE);
 294                                                 return NULL;
 295                                         }
 296                                         if (cur->next)
 297                                                 g_string_append_c(cmd, ' ');
 298                                 }
 299                                 p++;
 300                                 break;
 301                         case 'p':
 302                                 if (!parse_append_msgpart(cmd, msginfo,
 303                                                           partinfo)) {
 304                                         g_string_free(cmd, TRUE);
 305                                         return NULL;
 306                                 }
 307                                 p++;
 308                                 break;
 309                         case 's':
 310                                 if (sel_str)
 311                                         g_string_append(cmd, sel_str);
 312                                 p++;
 313                                 break;
 314                         case 'u':
 315                                 if (user_str)
 316                                         g_string_append(cmd, user_str);
 317                                 p++;
 318                                 break;
 319                         case 'h':
 320                                 if (user_hidden_str)
 321                                         g_string_append(cmd, user_hidden_str);
 322                                 p++;
 323                                 break;
 324                         default:
 325                                 g_string_append_c(cmd, p[0]);
 326                                 g_string_append_c(cmd, p[1]);
 327                                 p++;
 328                         }
 329                 } else {
 330                         g_string_append_c(cmd, p[0]);
 331                 }
 332                 p++;
 333         }
 334         if (cmd->len == 0) {
 335                 g_string_free(cmd, TRUE);
 336                 return NULL;
 337         }
 338
 339         p = cmd->str;
 340         g_string_free(cmd, FALSE);
 341         return p;
 342 }
 343
 344 static gboolean parse_append_filename(GString *cmd, MsgInfo *msginfo)
 345 {
 346         gchar *filename;
 347         gchar *p, *q;
 348         gchar escape_ch[] = "\\ ";
 349
 350         g_return_val_if_fail(msginfo, FALSE);
 351
 352         filename = procmsg_get_message_file(msginfo);
 353
 354         if (!filename) {
 355                 alertpanel_error(_("Could not get message file %d"),
 356                                  msginfo->msgnum);
 357                 return FALSE;
 358         }
 359
 360         p = filename;
 361         while ((q = strpbrk(p, "$\"`'\\ \t*?[]&|;<>()!#~")) != NULL) {
 362                 escape_ch[1] = *q;
 363                 *q = '\0';
 364                 g_string_append(cmd, p);
 365                 g_string_append(cmd, escape_ch);
 366                 p = q + 1;
 367         }
 368         g_string_append(cmd, p);
 369
 370         g_free(filename);
 371
 372         return TRUE;
 373 }
 374
 375 static gboolean parse_append_msgpart(GString *cmd, MsgInfo *msginfo,
 376                                      MimeInfo *partinfo)
 377 {
 378         gboolean single_part = FALSE;
 379         gchar *filename;
 380         gchar *part_filename;
 381         gint ret;
 382
 383         if (!partinfo) {
 384                 partinfo = procmime_scan_message(msginfo);
 385                 if (!partinfo) {
 386                         alertpanel_error(_("Could not get message part."));
 387                         return FALSE;
 388                 }
 389
 390                 single_part = TRUE;
 391         }
 392
 393         filename = procmsg_get_message_file_path(msginfo);
 394         part_filename = procmime_get_tmp_file_name(partinfo);
 395
 396         ret = procmime_get_part(part_filename, partinfo);
 397
 398         if (single_part)
 399                 procmime_mimeinfo_free_all(partinfo);
 400         g_free(filename);
 401
 402         if (ret < 0) {
 403                 alertpanel_error(_("Can't get part of multipart message"));
 404                 g_free(part_filename);
 405                 return FALSE;
 406         }
 407
 408         g_string_append(cmd, part_filename);
 409
 410         g_free(part_filename);
 411
 412         return TRUE;
 413 }
 414
 415 void actions_execute(gpointer data,
 416                      guint action_nb,
 417                      GtkWidget *widget,
 418                      gint source)
 419 {
 420         if (source == TOOLBAR_MAIN)
 421                 mainwin_actions_execute_cb((MainWindow*)data, action_nb, widget);
 422         else if (source == TOOLBAR_COMPOSE)
 423                 compose_actions_execute_cb((Compose*)data, action_nb, widget);
 424         else if (source == TOOLBAR_MSGVIEW)
 425                 msgview_actions_execute_cb((MessageView*)data, action_nb, widget);
 426 }
 427
 428 void action_update_mainwin_menu(GtkItemFactory *ifactory,
 429                                 gchar *branch_path,
 430                                 MainWindow *mainwin)
 431 {
 432         action_update_menu(ifactory, branch_path,
 433                            mainwin_actions_execute_cb, mainwin);
 434 }
 435
 436 void action_update_msgview_menu(GtkItemFactory *ifactory,
 437                                 gchar *branch_path,
 438                                 MessageView *msgview)
 439 {
 440         action_update_menu(ifactory, branch_path,
 441                            msgview_actions_execute_cb, msgview);
 442 }
 443
 444 void action_update_compose_menu(GtkItemFactory *ifactory,
 445                                 gchar *branch_path,
 446                                 Compose *compose)
 447 {
 448         action_update_menu(ifactory, branch_path,
 449                            compose_actions_execute_cb, compose);
 450 }
 451
 452 static void action_update_menu(GtkItemFactory *ifactory,
 453                                gchar *branch_path,
 454                                gpointer callback, gpointer data)
 455 {
 456         GtkWidget *menuitem;
 457         gchar *menu_path;
 458         GSList *cur;
 459         gchar *action, *action_p;
 460         GList *amenu;
 461         GtkItemFactoryEntry ifentry = {NULL, NULL, NULL, 0, "<Branch>"};
 462
 463         ifentry.path = branch_path;
 464         menuitem = gtk_item_factory_get_widget(ifactory, branch_path);
 465         g_return_if_fail(menuitem != NULL);
 466
 467         amenu = GTK_MENU_SHELL(menuitem)->children;
 468         while (amenu != NULL) {
 469                 GList *alist = amenu->next;
 470                 gtk_widget_destroy(GTK_WIDGET(amenu->data));
 471                 amenu = alist;
 472         }
 473
 474         ifentry.accelerator     = NULL;
 475         ifentry.callback_action = 0;
 476         ifentry.callback        = callback;
 477         ifentry.item_type       = NULL;
 478
 479         for (cur = prefs_common.actions_list; cur; cur = cur->next) {
 480                 action   = g_strdup((gchar *)cur->data);
 481                 action_p = strstr(action, ": ");
 482                 if (action_p && action_p[2] &&
 483                     (action_get_type(&action_p[2]) != ACTION_ERROR) &&
 484                     (action[0] != '/')) {
 485                         action_p[0] = '\0';
 486                         menu_path = g_strdup_printf("%s/%s", branch_path,
 487                                                     action);
 488                         ifentry.path = menu_path;
 489                         gtk_item_factory_create_item(ifactory, &ifentry, data,
 490                                                      1);
 491                         g_free(menu_path);
 492                 }
 493                 g_free(action);
 494                 ifentry.callback_action++;
 495         }
 496 }
 497
 498 static void compose_actions_execute_cb(Compose *compose, guint action_nb,
 499                                        GtkWidget *widget)
 500 {
 501         gchar *buf, *action;
 502         ActionType action_type;
 503
 504         g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));
 505
 506         buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
 507         g_return_if_fail(buf != NULL);
 508         action = strstr(buf, ": ");
 509         g_return_if_fail(action != NULL);
 510
 511         /* Point to the beginning of the command-line */
 512         action += 2;
 513
 514         action_type = action_get_type(action);
 515         if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE)) {
 516                 alertpanel_warning
 517                         (_("The selected action cannot be used in the compose window\n"
 518                            "because it contains %%f, %%F, %%as or %%p."));
 519                 return;
 520         }
 521
 522         execute_actions(action, NULL, compose->text, 0, NULL,
 523                 compose_action_cb, compose);
 524 }
 525
 526 static void mainwin_actions_execute_cb(MainWindow *mainwin, guint action_nb,
 527                                        GtkWidget *widget)
 528 {
 529         GSList *msg_list;
 530
 531         msg_list = summary_get_selected_msg_list(mainwin->summaryview);
 532         message_actions_execute(mainwin->messageview, action_nb, msg_list);
 533         g_slist_free(msg_list);
 534 }
 535
 536 static void msgview_actions_execute_cb(MessageView *msgview, guint action_nb,
 537                                        GtkWidget *widget)
 538 {
 539         GSList *msg_list = NULL;
 540
 541         if (msgview->msginfo)
 542                 msg_list = g_slist_append(msg_list, msgview->msginfo);
 543         message_actions_execute(msgview, action_nb, msg_list);
 544         g_slist_free(msg_list);
 545 }
 546
 547 static void message_actions_execute(MessageView *msgview, guint action_nb,
 548                                     GSList *msg_list)
 549 {
 550         TextView *textview;
 551         MimeInfo *partinfo;
 552         gchar *buf;
 553         gchar *action;
 554         GtkWidget *text = NULL;
 555         guint body_pos = 0;
 556         ActionType action_type;
 557
 558         g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));
 559
 560         buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
 561
 562         g_return_if_fail(buf);
 563         g_return_if_fail((action = strstr(buf, ": ")));
 564
 565         /* Point to the beginning of the command-line */
 566         action += 2;
 567
 568         textview = messageview_get_current_textview(msgview);
 569         if (textview) {
 570                 text     = textview->text;
 571                 body_pos = textview->body_pos;
 572         }
 573         partinfo = messageview_get_selected_mime_part(msgview);
 574
 575         /* this command will alter the message text */
 576         action_type = action_get_type(action);
 577         if (action_type & (ACTION_PIPE_OUT | ACTION_INSERT))
 578                 msgview->filtered = TRUE;
 579
 580         if (action_type & ACTION_FILTERING_ACTION)
 581                 /* CLAWS: most of the above code is not necessary for applying
 582                  * filtering */
 583                 execute_filtering_actions(action, msg_list);
 584         else
 585                 execute_actions(action, msg_list, text, body_pos, partinfo,
 586                         NULL, NULL);
 587 }
 588
 589 static gboolean execute_filtering_actions(gchar *action, GSList *msglist)
 590 {
 591         GSList *action_list, *p;
 592         const gchar *sbegin, *send;
 593         gchar *action_string;
 594         SummaryView *summaryview = NULL;
 595         MainWindow *mainwin = NULL;
 596
 597         if (mainwindow_get_mainwindow()) {
 598                 summaryview = mainwindow_get_mainwindow()->summaryview;
 599                 mainwin = mainwindow_get_mainwindow();
 600         }
 601
 602         if (NULL == (sbegin = strstr2(action, "%as{")))
 603                 return FALSE;
 604         sbegin += sizeof "%as{" - 1;
 605         if (NULL == (send = strrchr(sbegin, '}')))
 606                 return FALSE;
 607         action_string = g_strndup(sbegin, send - sbegin);
 608
 609         action_list = matcher_parser_get_action_list(action_string);
 610         g_free(action_string);
 611         if (action_list == NULL) return FALSE;
 612
 613         /* apply actions on each message info */
 614         for (p = msglist; p && p->data; p = g_slist_next(p)) {
 615                 filteringaction_apply_action_list(action_list, (MsgInfo *) p->data);
 616
 617         }
 618
 619         if (summaryview) {
 620                 summary_lock(summaryview);
 621                 main_window_cursor_wait(mainwin);
 622                 gtk_clist_freeze(GTK_CLIST(summaryview->ctree));
 623                 folder_item_update_freeze();
 624         }
 625
 626         filtering_move_and_copy_msgs(msglist);
 627
 628         if (summaryview) {
 629                 folder_item_update_thaw();
 630                 gtk_clist_thaw(GTK_CLIST(summaryview->ctree));
 631                 main_window_cursor_normal(mainwin);
 632                 summary_unlock(summaryview);
 633                 summary_show(summaryview, summaryview->folder_item);
 634         }
 635         for (p = action_list; p; p = g_slist_next(p))
 636                 if (p->data) filteringaction_free(p->data);
 637         g_slist_free(action_list);
 638         return TRUE;
 639 }
 640
 641 static gboolean execute_actions(gchar *action, GSList *msg_list,
 642                                 GtkWidget *text,
 643                                 gint body_pos, MimeInfo *partinfo,
 644                                 void (*callback)(void *data), void *data)
 645 {
 646         GSList *children_list = NULL;
 647         gint is_ok  = TRUE;
 648         gint msg_list_len;
 649         Children *children;
 650         ChildInfo *child_info;
 651         ActionType action_type;
 652         MsgInfo *msginfo;
 653         gchar *cmd;
 654         gchar *sel_str = NULL;
 655         gchar *msg_str = NULL;
 656         gchar *user_str = NULL;
 657         gchar *user_hidden_str = NULL;
 658         GtkTextIter start_iter, end_iter;
 659         gboolean is_selection = FALSE;
 660
 661         g_return_val_if_fail(action && *action, FALSE);
 662
 663         action_type = action_get_type(action);
 664
 665         if (action_type == ACTION_ERROR)
 666                 return FALSE;         /* ERR: syntax error */
 667
 668         if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE) && !msg_list)
 669                 return FALSE;         /* ERR: file command without selection */
 670
 671         msg_list_len = g_slist_length(msg_list);
 672
 673         if (action_type & (ACTION_PIPE_OUT | ACTION_PIPE_IN | ACTION_INSERT)) {
 674                 if (msg_list_len > 1)
 675                         return FALSE; /* ERR: pipe + multiple selection */
 676                 if (!text)
 677                         return FALSE; /* ERR: pipe and no displayed text */
 678         }
 679
 680         if (action_type & ACTION_SELECTION_STR) {
 681                 if (!text)
 682                         return FALSE; /* ERR: selection string but no text */
 683         }
 684
 685         if (text) {
 686                 GtkTextBuffer *textbuf;
 687
 688                 textbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 689                 is_selection = gtk_text_buffer_get_selection_bounds
 690                         (textbuf, &start_iter, &end_iter);
 691                 if (!is_selection) {
 692                         gtk_text_buffer_get_iter_at_offset
 693                                 (textbuf, &start_iter, body_pos);
 694                         gtk_text_buffer_get_end_iter(textbuf, &end_iter);
 695                 }
 696                 msg_str = gtk_text_buffer_get_text
 697                         (textbuf, &start_iter, &end_iter, FALSE);
 698                 if (is_selection)
 699                         sel_str = g_strdup(msg_str);
 700         }
 701
 702         if (action_type & ACTION_USER_STR) {
 703                 if (!(user_str = get_user_string(action, ACTION_USER_STR))) {
 704                         g_free(msg_str);
 705                         g_free(sel_str);
 706                         return FALSE;
 707                 }
 708         }
 709
 710         if (action_type & ACTION_USER_HIDDEN_STR) {
 711                 if (!(user_hidden_str =
 712                         get_user_string(action, ACTION_USER_HIDDEN_STR))) {
 713                         g_free(msg_str);
 714                         g_free(sel_str);
 715                         g_free(user_str);
 716                         return FALSE;
 717                 }
 718         }
 719
 720         if (text && (action_type & ACTION_PIPE_OUT)) {
 721                 GtkTextBuffer *textbuf;
 722                 textbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 723                 gtk_text_buffer_delete(textbuf, &start_iter, &end_iter);
 724         }
 725
 726         children = g_new0(Children, 1);
 727
 728         children->action      = g_strdup(action);
 729         children->action_type = action_type;
 730         children->msg_text    = text;
 731         children->is_selection = is_selection;
 732
 733         if ((action_type & (ACTION_USER_IN | ACTION_USER_HIDDEN_IN)) &&
 734             ((action_type & ACTION_SINGLE) == 0 || msg_list_len == 1))
 735                 children->open_in = 1;
 736
 737         if (action_type & ACTION_SINGLE) {
 738                 GSList *cur;
 739
 740                 for (cur = msg_list; cur && is_ok == TRUE; cur = cur->next) {
 741                         msginfo = (MsgInfo *)cur->data;
 742                         if (!msginfo) {
 743                                 is_ok  = FALSE; /* ERR: msginfo missing */
 744                                 break;
 745                         }
 746                         cmd = parse_action_cmd(action, msginfo, msg_list,
 747                                                partinfo, user_str,
 748                                                user_hidden_str, sel_str);
 749                         if (!cmd) {
 750                                 debug_print("Action command error\n");
 751                                 is_ok  = FALSE; /* ERR: incorrect command */
 752                                 break;
 753                         }
 754                         if ((child_info = fork_child(cmd, msg_str, children))) {
 755                                 /* Pass msginfo to catch_status () */
 756                                 if (!(action_type & (ACTION_PIPE_OUT | ACTION_INSERT)))
 757                                         child_info->msginfo_list =
 758                                                 g_slist_append (NULL, msginfo);
 759                                 children_list = g_slist_append(children_list,
 760                                                                child_info);
 761                         }
 762                         g_free(cmd);
 763                 }
 764         } else {
 765                 cmd = parse_action_cmd(action, NULL, msg_list, partinfo,
 766                                        user_str, user_hidden_str, sel_str);
 767                 if (cmd) {
 768                         if ((child_info = fork_child(cmd, msg_str, children))) {
 769                                 if (!(action_type & (ACTION_PIPE_OUT | ACTION_INSERT)))
 770                                         child_info->msginfo_list =
 771                                                 g_slist_copy (msg_list);
 772                                 children_list = g_slist_append(children_list,
 773                                                                 child_info);
 774                         }
 775                         g_free(cmd);
 776                 } else
 777                         is_ok  = FALSE;         /* ERR: incorrect command */
 778         }
 779
 780         g_free(msg_str);
 781         g_free(sel_str);
 782         g_free(user_str);
 783         g_free(user_hidden_str);
 784
 785         if (!children_list) {
 786                  /* If not waiting for children, return */
 787                 free_children(children);
 788         } else {
 789                 GSList *cur;
 790
 791                 children->list        = children_list;
 792                 children->nb          = g_slist_length(children_list);
 793                 children->initial_nb  = children->nb;
 794
 795                 for (cur = children_list; cur; cur = cur->next) {
 796                         child_info = (ChildInfo *) cur->data;
 797                         child_info->callback = callback;
 798                         child_info->data = data;
 799                         child_info->tag_status =
 800                                 gdk_input_add(child_info->chld_status,
 801                                               GDK_INPUT_READ,
 802                                               catch_status, child_info);
 803                 }
 804
 805                 create_io_dialog(children);
 806         }
 807         return is_ok;
 808 }
 809
 810 static ChildInfo *fork_child(gchar *cmd, const gchar *msg_str,
 811                              Children *children)
 812 {
 813 #ifdef G_OS_UNIX
 814         gint chld_in[2], chld_out[2], chld_err[2], chld_status[2];
 815         gchar *cmdline[4], *ret_str;
 816         pid_t pid, gch_pid;
 817         ChildInfo *child_info;
 818         gint sync;
 819         gssize by_written = 0, by_read = 0;
 820
 821         sync = !(children->action_type & ACTION_ASYNC);
 822
 823         chld_in[0] = chld_in[1] = chld_out[0] = chld_out[1] = chld_err[0]
 824                 = chld_err[1] = chld_status[0] = chld_status[1] = -1;
 825
 826         if (sync) {
 827                 if (pipe(chld_status) || pipe(chld_in) || pipe(chld_out) ||
 828                     pipe(chld_err)) {
 829                         alertpanel_error(_("Command could not be started. "
 830                                            "Pipe creation failed.\n%s"),
 831                                         g_strerror(errno));
 832                         /* Closing fd = -1 fails silently */
 833                         close(chld_in[0]);
 834                         close(chld_in[1]);
 835                         close(chld_out[0]);
 836                         close(chld_out[1]);
 837                         close(chld_err[0]);
 838                         close(chld_err[1]);
 839                         close(chld_status[0]);
 840                         close(chld_status[1]);
 841                         return NULL; /* Pipe error */
 842                 }
 843         }
 844
 845         debug_print("Forking child and grandchild.\n");
 846         debug_print("Executing: /bin/sh -c %s\n", cmd);
 847
 848         pid = fork();
 849         if (pid == 0) { /* Child */
 850                 if (setpgid(0, 0))
 851                         perror("setpgid");
 852
 853 #ifdef GDK_WINDOWING_X11
 854                 close(ConnectionNumber(gdk_display));
 855 #endif /* GDK_WINDOWING_X11 */
 856
 857                 gch_pid = fork();
 858
 859                 if (gch_pid == 0) {
 860                         if (setpgid(0, getppid()))
 861                                 perror("setpgid");
 862
 863                         if (sync) {
 864                                 if (children->action_type &
 865                                     (ACTION_PIPE_IN |
 866                                      ACTION_USER_IN |
 867                                      ACTION_USER_HIDDEN_IN)) {
 868                                         close(fileno(stdin));
 869                                         dup  (chld_in[0]);
 870                                 }
 871                                 close(chld_in[0]);
 872                                 close(chld_in[1]);
 873
 874                                 close(fileno(stdout));
 875                                 dup  (chld_out[1]);
 876                                 close(chld_out[0]);
 877                                 close(chld_out[1]);
 878
 879                                 close(fileno(stderr));
 880                                 dup  (chld_err[1]);
 881                                 close(chld_err[0]);
 882                                 close(chld_err[1]);
 883                         }
 884
 885                         cmdline[0] = "sh";
 886                         cmdline[1] = "-c";
 887                         ret_str = g_locale_from_utf8(cmd, strlen(cmd),
 888                                                      &by_read, &by_written,
 889                                                      NULL);
 890                         if (ret_str && by_written)
 891                                 cmdline[2] = ret_str;
 892                         else
 893                                 cmdline[2] = cmd;
 894                         cmdline[3] = NULL;
 895                         execvp("/bin/sh", cmdline);
 896
 897                         perror("execvp");
 898                         g_free(ret_str);
 899                         _exit(1);
 900                 } else if (gch_pid < (pid_t) 0) { /* Fork error */
 901                         if (sync)
 902                                 write(chld_status[1], "1\n", 2);
 903                         perror("fork");
 904                         _exit(1);
 905                 } else { /* Child */
 906                         if (sync) {
 907                                 close(chld_in[0]);
 908                                 close(chld_in[1]);
 909                                 close(chld_out[0]);
 910                                 close(chld_out[1]);
 911                                 close(chld_err[0]);
 912                                 close(chld_err[1]);
 913                                 close(chld_status[0]);
 914
 915                                 debug_print("Child: Waiting for grandchild\n");
 916                                 waitpid(gch_pid, NULL, 0);
 917                                 debug_print("Child: grandchild ended\n");
 918                                 write(chld_status[1], "0\n", 2);
 919                                 close(chld_status[1]);
 920                         }
 921                         _exit(0);
 922                 }
 923         } else if (pid < 0) { /* Fork error */
 924                 alertpanel_error(_("Could not fork to execute the following "
 925                                    "command:\n%s\n%s"),
 926                                  cmd, g_strerror(errno));
 927                 return NULL;
 928         }
 929
 930         /* Parent */
 931
 932         if (!sync) {
 933                 waitpid(pid, NULL, 0);
 934                 return NULL;
 935         }
 936
 937         close(chld_in[0]);
 938         if (!(children->action_type &
 939               (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 940                 close(chld_in[1]);
 941         close(chld_out[1]);
 942         close(chld_err[1]);
 943         close(chld_status[1]);
 944
 945         child_info = g_new0(ChildInfo, 1);
 946
 947         child_info->children    = children;
 948
 949         child_info->pid         = pid;
 950         child_info->cmd         = g_strdup(cmd);
 951         child_info->new_out     = FALSE;
 952         child_info->output      = g_string_new(NULL);
 953         child_info->chld_in     =
 954                 (children->action_type &
 955                  (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN))
 956                         ? chld_in [1] : -1;
 957         child_info->chld_out    = chld_out[0];
 958         child_info->chld_err    = chld_err[0];
 959         child_info->chld_status = chld_status[0];
 960         child_info->tag_in      = -1;
 961         child_info->tag_out     = gdk_input_add(chld_out[0], GDK_INPUT_READ,
 962                                                 catch_output, child_info);
 963         child_info->tag_err     = gdk_input_add(chld_err[0], GDK_INPUT_READ,
 964                                                 catch_output, child_info);
 965
 966         if (!(children->action_type &
 967               (ACTION_PIPE_IN | ACTION_PIPE_OUT | ACTION_INSERT)))
 968                 return child_info;
 969
 970         if ((children->action_type & ACTION_PIPE_IN) && msg_str) {
 971                 ret_str = g_locale_from_utf8(msg_str, strlen(msg_str),
 972                                              &by_read, &by_written, NULL);
 973                 if (ret_str && by_written) {
 974                         write(chld_in[1], ret_str, strlen(ret_str));
 975                         g_free(ret_str);
 976                 } else
 977                         write(chld_in[1], msg_str, strlen(msg_str));
 978                 if (!(children->action_type &
 979                       (ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 980                         close(chld_in[1]);
 981                 child_info->chld_in = -1; /* No more input */
 982         }
 983
 984         return child_info;
 985 #else
 986         return NULL;
 987 #endif /* G_OS_UNIX */
 988 }
 989
 990 static void kill_children_cb(GtkWidget *widget, gpointer data)
 991 {
 992 #ifdef G_OS_UNIX
 993         GSList *cur;
 994         Children *children = (Children *) data;
 995         ChildInfo *child_info;
 996
 997         for (cur = children->list; cur; cur = cur->next) {
 998                 child_info = (ChildInfo *)(cur->data);
 999                 debug_print("Killing child group id %d\n", child_info->pid);
1000                 if (child_info->pid && kill(-child_info->pid, SIGTERM) < 0)
1001                         perror("kill");
1002         }
1003 #endif /* G_OS_UNIX */
1004 }
1005
1006 static gint wait_for_children(Children *children)
1007 {
1008         gboolean new_output;
1009         ChildInfo *child_info;
1010         GSList *cur;
1011         gint nb = children->nb;
1012
1013         children->nb = 0;
1014
1015         cur = children->list;
1016         new_output = FALSE;
1017         while (cur) {
1018                 child_info = (ChildInfo *)cur->data;
1019                 if (child_info->pid)
1020                         children->nb++;
1021                 new_output |= child_info->new_out;
1022                 cur = cur->next;
1023         }
1024
1025         children->output |= new_output;
1026
1027         if (new_output || (children->dialog && (nb != children->nb)))
1028                 update_io_dialog(children);
1029
1030         if (children->nb)
1031                 return FALSE;
1032
1033         if (!children->dialog) {
1034                 free_children(children);
1035         } else if (!children->output) {
1036                 gtk_widget_destroy(children->dialog);
1037         }
1038
1039         return FALSE;
1040 }
1041
1042 static void send_input(GtkWidget *w, gpointer data)
1043 {
1044         Children *children = (Children *) data;
1045         ChildInfo *child_info = (ChildInfo *) children->list->data;
1046
1047         child_info->tag_in = gdk_input_add(child_info->chld_in,
1048                                            GDK_INPUT_WRITE,
1049                                            catch_input, children);
1050         gtk_widget_set_sensitive(children->input_hbox, FALSE);
1051 }
1052
1053 static gint delete_io_dialog_cb(GtkWidget *w, GdkEvent *e, gpointer data)
1054 {
1055         hide_io_dialog_cb(w, data);
1056         return TRUE;
1057 }
1058
1059 static void hide_io_dialog_cb(GtkWidget *w, gpointer data)
1060 {
1061
1062         Children *children = (Children *)data;
1063
1064         if (!children->nb) {
1065                 g_signal_handlers_disconnect_matched
1066                         (G_OBJECT(children->dialog), G_SIGNAL_MATCH_DATA,
1067                          0, 0, NULL, NULL, children);
1068                 gtk_widget_destroy(children->dialog);
1069                 free_children(children);
1070         }
1071 }
1072
1073 static gint io_dialog_key_pressed_cb(GtkWidget *widget, GdkEventKey *event,
1074                                      gpointer data)
1075 {
1076         if (event && event->keyval == GDK_Escape)
1077                 hide_io_dialog_cb(widget, data);
1078         return TRUE;
1079 }
1080
1081 static void childinfo_close_pipes(ChildInfo *child_info)
1082 {
1083         /* stdout and stderr pipes are guaranteed to be removed by
1084          * their handler, but in case where we receive child exit notification
1085          * before grand-child's pipes closing signals, we check them and close
1086          * them if necessary
1087          */
1088         if (child_info->tag_in > 0)
1089                 gdk_input_remove(child_info->tag_in);
1090         if (child_info->tag_out > 0)
1091                 gdk_input_remove(child_info->tag_out);
1092         if (child_info->tag_err > 0)
1093                 gdk_input_remove(child_info->tag_err);
1094
1095         if (child_info->chld_in >= 0)
1096                 close(child_info->chld_in);
1097         if (child_info->chld_out >= 0)
1098                 close(child_info->chld_out);
1099         if (child_info->chld_err >= 0)
1100                 close(child_info->chld_err);
1101
1102         close(child_info->chld_status);
1103 }
1104
1105 static void free_children(Children *children)
1106 {
1107         ChildInfo *child_info;
1108         void (*callback)(void *data) = NULL;
1109         void *data = NULL;
1110
1111         debug_print("Freeing children data %p\n", children);
1112
1113         g_free(children->action);
1114         while (children->list != NULL) {
1115                 child_info = (ChildInfo *)children->list->data;
1116                 g_free(child_info->cmd);
1117                 g_string_free(child_info->output, TRUE);
1118                 children->list = g_slist_remove(children->list, child_info);
1119                 callback = child_info->callback;
1120                 data = child_info->data;
1121                 g_free(child_info);
1122         }
1123
1124         if (callback)
1125                 callback(data);
1126
1127         g_free(children);
1128 }
1129
1130 static void update_io_dialog(Children *children)
1131 {
1132         GSList *cur;
1133
1134         debug_print("Updating actions input/output dialog.\n");
1135
1136         if (children->progress_bar) {
1137                 gchar *text;
1138
1139                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(children->progress_bar),
1140                                                   (children->initial_nb == 0) ? 0 :
1141                                               (gdouble) (children->initial_nb - children->nb) /
1142                                               (gdouble) children->initial_nb);
1143                 text = g_strdup_printf("%s %d/%d", _("Completed"),
1144                                        children->initial_nb - children->nb,
1145                                        children->initial_nb);
1146                 gtk_progress_bar_set_text(GTK_PROGRESS_BAR(children->progress_bar), text);
1147                 g_free(text);
1148         }
1149
1150         if (!children->nb) {
1151                 gtk_widget_set_sensitive(children->abort_btn, FALSE);
1152                 gtk_widget_set_sensitive(children->close_btn, TRUE);
1153                 if (children->input_hbox)
1154                         gtk_widget_set_sensitive(children->input_hbox, FALSE);
1155                 gtk_widget_grab_focus(children->close_btn);
1156                 g_signal_connect(G_OBJECT(children->dialog),
1157                                  "key_press_event",
1158                                  G_CALLBACK(io_dialog_key_pressed_cb),
1159                                  children);
1160         }
1161
1162         if (children->output) {
1163                 GtkWidget *text = children->text;
1164                 GtkTextBuffer *textbuf;
1165                 GtkTextIter iter, start_iter, end_iter;
1166                 gchar *caption;
1167                 ChildInfo *child_info;
1168
1169                 gtk_widget_show(children->scrolledwin);
1170                 textbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
1171                 gtk_text_buffer_get_bounds(textbuf, &start_iter, &end_iter);
1172                 gtk_text_buffer_delete(textbuf, &start_iter, &end_iter);
1173                 gtk_text_buffer_get_start_iter(textbuf, &iter);
1174
1175                 for (cur = children->list; cur; cur = cur->next) {
1176                         child_info = (ChildInfo *)cur->data;
1177                         if (child_info->pid)
1178                                 caption = g_strdup_printf
1179                                         (_("--- Running: %s\n"),
1180                                          child_info->cmd);
1181                         else
1182                                 caption = g_strdup_printf
1183                                         (_("--- Ended: %s\n"),
1184                                          child_info->cmd);
1185
1186                         gtk_text_buffer_insert(textbuf, &iter, caption, -1);
1187                         gtk_text_buffer_insert(textbuf, &iter,
1188                                                child_info->output->str, -1);
1189                         g_free(caption);
1190                         child_info->new_out = FALSE;
1191                 }
1192         }
1193 }
1194
1195 static void create_io_dialog(Children *children)
1196 {
1197         GtkWidget *dialog;
1198         GtkWidget *vbox;
1199         GtkWidget *entry = NULL;
1200         GtkWidget *input_hbox = NULL;
1201         GtkWidget *send_button;
1202         GtkWidget *label;
1203         GtkWidget *text;
1204         GtkWidget *scrolledwin;
1205         GtkWidget *hbox;
1206         GtkWidget *progress_bar = NULL;
1207         GtkWidget *abort_button;
1208         GtkWidget *close_button;
1209
1210         debug_print("Creating action IO dialog\n");
1211
1212         dialog = gtk_dialog_new();
1213         gtk_container_set_border_width
1214                 (GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 5);
1215         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
1216         gtk_window_set_title(GTK_WINDOW(dialog), _("Action's input/output"));
1217         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
1218         manage_window_set_transient(GTK_WINDOW(dialog));
1219         g_signal_connect(G_OBJECT(dialog), "delete_event",
1220                          G_CALLBACK(delete_io_dialog_cb), children);
1221         g_signal_connect(G_OBJECT(dialog), "destroy",
1222                          G_CALLBACK(hide_io_dialog_cb),
1223                          children);
1224
1225         vbox = gtk_vbox_new(FALSE, 8);
1226         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), vbox);
1227         gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
1228         gtk_widget_show(vbox);
1229
1230         label = gtk_label_new(children->action);
1231         gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
1232         gtk_widget_show(label);
1233
1234         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
1235         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
1236                                        GTK_POLICY_AUTOMATIC,
1237                                        GTK_POLICY_AUTOMATIC);
1238         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
1239                                             GTK_SHADOW_IN);
1240         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
1241         gtk_widget_set_size_request(scrolledwin, 560, 200);
1242         gtk_widget_hide(scrolledwin);
1243
1244         text = gtk_text_view_new();
1245
1246         if (prefs_common.textfont) {
1247                 PangoFontDescription *font_desc;
1248                 font_desc = pango_font_description_from_string
1249                         (prefs_common.textfont);
1250                 if (font_desc) {
1251                         gtk_widget_modify_font(text, font_desc);
1252                         pango_font_description_free(font_desc);
1253                 }
1254         }
1255
1256         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
1257         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD);
1258         gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
1259         gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
1260         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
1261         gtk_widget_show(text);
1262
1263         if (children->open_in) {
1264                 input_hbox = gtk_hbox_new(FALSE, 8);
1265                 gtk_widget_show(input_hbox);
1266
1267                 entry = gtk_entry_new();
1268                 gtk_widget_set_size_request(entry, 320, -1);
1269                 g_signal_connect(G_OBJECT(entry), "activate",
1270                                  G_CALLBACK(send_input), children);
1271                 gtk_box_pack_start(GTK_BOX(input_hbox), entry, TRUE, TRUE, 0);
1272                 if (children->action_type & ACTION_USER_HIDDEN_IN)
1273                         gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE);
1274                 gtk_widget_show(entry);
1275
1276                 send_button = gtk_button_new_from_stock(GTK_STOCK_EXECUTE);
1277                 g_signal_connect(G_OBJECT(send_button), "clicked",
1278                                  G_CALLBACK(send_input), children);
1279                 gtk_box_pack_start(GTK_BOX(input_hbox), send_button, FALSE,
1280                                    FALSE, 0);
1281                 gtk_widget_show(send_button);
1282
1283                 gtk_box_pack_start(GTK_BOX(vbox), input_hbox, FALSE, FALSE, 0);
1284                 gtk_widget_grab_focus(entry);
1285         }
1286
1287         if (children->initial_nb > 1) {
1288                 gchar * text;
1289
1290                 progress_bar = gtk_progress_bar_new();
1291                 gtk_progress_bar_set_orientation(GTK_PROGRESS_BAR(progress_bar),
1292                                 GTK_PROGRESS_LEFT_TO_RIGHT);
1293                 text = g_strdup_printf("%s 0/%d\n", _("Completed"),
1294                                        children->initial_nb);
1295                 gtk_progress_bar_set_text(GTK_PROGRESS_BAR(progress_bar),
1296                                           text);
1297                 g_free(text);
1298                 gtk_box_pack_start(GTK_BOX(vbox), progress_bar, FALSE, FALSE, 0);
1299                 gtk_widget_show(progress_bar);
1300         }
1301
1302         gtkut_stock_button_set_create(&hbox, &abort_button, GTK_STOCK_STOP,
1303                                       &close_button, GTK_STOCK_CLOSE, NULL, NULL);
1304         g_signal_connect(G_OBJECT(abort_button), "clicked",
1305                          G_CALLBACK(kill_children_cb), children);
1306         g_signal_connect(G_OBJECT(close_button), "clicked",
1307                          G_CALLBACK(hide_io_dialog_cb), children);
1308         gtk_widget_show(hbox);
1309
1310         if (children->nb)
1311                 gtk_widget_set_sensitive(close_button, FALSE);
1312
1313         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), hbox);
1314
1315         children->dialog       = dialog;
1316         children->scrolledwin  = scrolledwin;
1317         children->text         = text;
1318         children->input_hbox   = children->open_in ? input_hbox : NULL;
1319         children->input_entry  = children->open_in ? entry : NULL;
1320         children->progress_bar = progress_bar;
1321         children->abort_btn    = abort_button;
1322         children->close_btn    = close_button;
1323
1324         gtk_widget_show(dialog);
1325 }
1326
1327 static void catch_status(gpointer data, gint source, GdkInputCondition cond)
1328 {
1329         ChildInfo *child_info = (ChildInfo *)data;
1330         gchar buf;
1331         gint c;
1332
1333         gdk_input_remove(child_info->tag_status);
1334
1335         c = read(source, &buf, 1);
1336         debug_print("Child returned %c\n", buf);
1337
1338 #ifdef G_OS_UNIX
1339         waitpid(-child_info->pid, NULL, 0);
1340 #endif
1341         childinfo_close_pipes(child_info);
1342         child_info->pid = 0;
1343
1344         if (child_info->children->action_type & (ACTION_SINGLE | ACTION_MULTIPLE)
1345             && child_info->msginfo_list) {
1346                 /* Actions on message *files* might change size and
1347                 * time stamp, and thus invalidate the cache */
1348                 SummaryView *summaryview  = NULL;
1349                 GSList      *cur;
1350                 MsgInfo     *msginfo, *nmi;     /* newmsginfo */
1351                 char        *file;
1352
1353                 if (mainwindow_get_mainwindow ())
1354                         summaryview = mainwindow_get_mainwindow ()->summaryview;
1355                 for (cur = child_info->msginfo_list; cur; cur = cur->next) {
1356                         msginfo = (MsgInfo *)cur->data;
1357                         if (!(msginfo && /* Stuff used valid? */
1358                             msginfo->folder && msginfo->folder->cache))
1359                                 continue;
1360                         file = procmsg_get_message_file_path (msginfo);
1361                         if (!file)
1362                                 continue;
1363                         nmi = procheader_parse_file (file, msginfo->flags, FALSE, FALSE);
1364                         if (!nmi)
1365                                 continue; /* Deleted? */
1366                         if (msginfo->mtime != nmi->mtime || msginfo->size != nmi->size) {
1367                                 msginfo->mtime  = nmi->mtime;
1368                                 msginfo->size   = nmi->size;
1369                                 msgcache_update_msg (msginfo->folder->cache, msginfo);
1370                         }
1371                         procmsg_msginfo_free (nmi);
1372
1373                         /* refresh the message display, but only if this message is still
1374                         * in focus */
1375                         if (summaryview
1376                             && summaryview->displayed
1377                             && summaryview->folder_item == msginfo->folder
1378                             && summary_get_msgnum (summaryview, summaryview->displayed) == msginfo->msgnum) {
1379                                 summary_show (summaryview, summaryview->folder_item);
1380                                 summary_select_node (summaryview, summaryview->displayed, TRUE, TRUE);
1381                         }
1382                 }
1383                 g_slist_free (child_info->msginfo_list);
1384                 child_info->msginfo_list = NULL;
1385         }
1386
1387         wait_for_children(child_info->children);
1388 }
1389
1390 static void catch_input(gpointer data, gint source, GdkInputCondition cond)
1391 {
1392         Children *children = (Children *)data;
1393         ChildInfo *child_info = (ChildInfo *)children->list->data;
1394         gchar *input, *ret_str;
1395         gint c, count, len;
1396         gssize by_read = 0, by_written = 0;
1397
1398         debug_print("Sending input to grand child.\n");
1399         if (!(cond && GDK_INPUT_WRITE))
1400                 return;
1401
1402         gdk_input_remove(child_info->tag_in);
1403         child_info->tag_in = -1;
1404
1405         input = gtk_editable_get_chars(GTK_EDITABLE(children->input_entry),
1406                                        0, -1);
1407         ret_str = g_locale_from_utf8(input, strlen(input), &by_read,
1408                                      &by_written, NULL);
1409         if (ret_str && by_written) {
1410                 g_free(input);
1411                 input = ret_str;
1412         }
1413
1414         len = strlen(input);
1415         count = 0;
1416
1417         do {
1418                 c = write(child_info->chld_in, input + count, len - count);
1419                 if (c >= 0)
1420                         count += c;
1421         } while (c >= 0 && count < len);
1422
1423         if (c >= 0)
1424                 write(child_info->chld_in, "\n", 2);
1425
1426         g_free(input);
1427
1428         gtk_entry_set_text(GTK_ENTRY(children->input_entry), "");
1429         gtk_widget_set_sensitive(children->input_hbox, TRUE);
1430         close(child_info->chld_in);
1431         child_info->chld_in = -1;
1432         debug_print("Input to grand child sent.\n");
1433 }
1434
1435 static void catch_output(gpointer data, gint source, GdkInputCondition cond)
1436 {
1437         ChildInfo *child_info = (ChildInfo *)data;
1438         gint c;
1439         gchar buf[BUFFSIZE];
1440
1441         debug_print("Catching grand child's output.\n");
1442         if (child_info->children->action_type &
1443             (ACTION_PIPE_OUT | ACTION_INSERT)
1444             && source == child_info->chld_out) {
1445                 GtkTextView *text =
1446                         GTK_TEXT_VIEW(child_info->children->msg_text);
1447                 GtkTextBuffer *textbuf = gtk_text_view_get_buffer(text);
1448                 GtkTextIter iter;
1449                 GtkTextMark *mark;
1450                 gint ins_pos;
1451
1452                 mark = gtk_text_buffer_get_insert(textbuf);
1453                 gtk_text_buffer_get_iter_at_mark(textbuf, &iter, mark);
1454                 ins_pos = gtk_text_iter_get_offset(&iter);
1455
1456                 while (TRUE) {
1457                         gsize bytes_read = 0, bytes_written = 0;
1458                         gchar *ret_str;
1459
1460                         c = read(source, buf, sizeof(buf) - 1);
1461                         if (c == 0)
1462                                 break;
1463
1464                         ret_str = g_locale_to_utf8
1465                                 (buf, c, &bytes_read, &bytes_written, NULL);
1466                         if (ret_str && bytes_written > 0) {
1467                                 gtk_text_buffer_insert
1468                                         (textbuf, &iter, ret_str,
1469                                          bytes_written);
1470                                 g_free(ret_str);
1471                         } else
1472                                 gtk_text_buffer_insert(textbuf, &iter, buf, c);
1473                 }
1474
1475                 if (child_info->children->is_selection) {
1476                         GtkTextIter ins;
1477
1478                         gtk_text_buffer_get_iter_at_offset
1479                                 (textbuf, &ins, ins_pos);
1480                         gtk_text_buffer_select_range(textbuf, &ins, &iter);
1481                 }
1482         } else {
1483                 c = read(source, buf, sizeof(buf) - 1);
1484                 if (c > 0) {
1485                         gsize bytes_read = 0, bytes_written = 0;
1486                         gchar *ret_str;
1487
1488                         ret_str = g_locale_to_utf8
1489                                 (buf, c, &bytes_read, &bytes_written, NULL);
1490                         if (ret_str && bytes_written > 0) {
1491                                 g_string_append_len
1492                                         (child_info->output, ret_str,
1493                                          bytes_written);
1494                                 g_free(ret_str);
1495                         } else
1496                                 g_string_append_len(child_info->output, buf, c);
1497
1498                         child_info->new_out = TRUE;
1499                 }
1500         }
1501         if (c == 0) {
1502                 if (source == child_info->chld_out) {
1503                         gdk_input_remove(child_info->tag_out);
1504                         child_info->tag_out = -1;
1505                         close(child_info->chld_out);
1506                         child_info->chld_out = -1;
1507                 } else {
1508                         gdk_input_remove(child_info->tag_err);
1509                         child_info->tag_err = -1;
1510                         close(child_info->chld_err);
1511                         child_info->chld_err = -1;
1512                 }
1513         }
1514
1515         wait_for_children(child_info->children);
1516 }
1517
1518 static gchar *get_user_string(const gchar *action, ActionType type)
1519 {
1520         gchar *message;
1521         gchar *user_str = NULL;
1522
1523         switch (type) {
1524         case ACTION_USER_HIDDEN_STR:
1525                 message = g_strdup_printf
1526                         (_("Enter the argument for the following action:\n"
1527                            "('%%h' will be replaced with the argument)\n"
1528                            "  %s"),
1529                          action);
1530                 user_str = input_dialog_with_invisible
1531                         (_("Action's hidden user argument"), message, NULL);
1532                 break;
1533         case ACTION_USER_STR:
1534                 message = g_strdup_printf
1535                         (_("Enter the argument for the following action:\n"
1536                            "('%%u' will be replaced with the argument)\n"
1537                            "  %s"),
1538                          action);
1539                 user_str = input_dialog
1540                         (_("Action's user argument"), message, NULL);
1541                 break;
1542         default:
1543                 g_warning("Unsupported action type %d", type);
1544         }
1545
1546         return user_str;
1547 }