src/action.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2005 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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
  58 typedef struct _Children                Children;
  59 typedef struct _ChildInfo               ChildInfo;
  60 typedef struct _UserStringDialog        UserStringDialog;
  61
  62 struct _Children
  63 {
  64         GtkWidget       *dialog;
  65         GtkWidget       *text;
  66         GtkWidget       *input_entry;
  67         GtkWidget       *input_hbox;
  68         GtkWidget       *progress_bar;
  69         GtkWidget       *abort_btn;
  70         GtkWidget       *close_btn;
  71         GtkWidget       *scrolledwin;
  72
  73         gchar           *action;
  74         ActionType       action_type;
  75         GSList          *list;
  76         gint             nb;
  77         gint             initial_nb;
  78         gint             open_in;
  79         gboolean         output;
  80
  81         GtkWidget       *msg_text;
  82
  83         gboolean         is_selection;
  84 };
  85
  86 struct _ChildInfo
  87 {
  88         Children        *children;
  89         gchar           *cmd;
  90         pid_t            pid;
  91         gint             chld_in;
  92         gint             chld_out;
  93         gint             chld_err;
  94         gint             chld_status;
  95         gint             tag_in;
  96         gint             tag_out;
  97         gint             tag_err;
  98         gint             tag_status;
  99         gint             new_out;
 100
 101         GString         *output;
 102 };
 103
 104 static void action_update_menu          (GtkItemFactory *ifactory,
 105                                          gchar          *branch_path,
 106                                          gpointer        callback,
 107                                          gpointer        data);
 108 static void compose_actions_execute_cb  (Compose        *compose,
 109                                          guint           action_nb,
 110                                          GtkWidget      *widget);
 111 static void mainwin_actions_execute_cb  (MainWindow     *mainwin,
 112                                          guint           action_nb,
 113                                          GtkWidget      *widget);
 114 static void msgview_actions_execute_cb  (MessageView    *msgview,
 115                                          guint           action_nb,
 116                                          GtkWidget      *widget);
 117 static void message_actions_execute     (MessageView    *msgview,
 118                                          guint           action_nb,
 119                                          GSList         *msg_list);
 120
 121 static gboolean execute_filtering_actions(gchar         *action,
 122                                           GSList        *msglist);
 123
 124 static gboolean execute_actions         (gchar          *action,
 125                                          GSList         *msg_list,
 126                                          GtkWidget      *text,
 127                                          gint            body_pos,
 128                                          MimeInfo       *partinfo);
 129
 130 static gchar *parse_action_cmd          (gchar          *action,
 131                                          MsgInfo        *msginfo,
 132                                          GSList         *msg_list,
 133                                          MimeInfo       *partinfo,
 134                                          const gchar    *user_str,
 135                                          const gchar    *user_hidden_str,
 136                                          const gchar    *sel_str);
 137 static gboolean parse_append_filename   (GString        *cmd,
 138                                          MsgInfo        *msginfo);
 139
 140 static gboolean parse_append_msgpart    (GString        *cmd,
 141                                          MsgInfo        *msginfo,
 142                                          MimeInfo       *partinfo);
 143
 144 static ChildInfo *fork_child            (gchar          *cmd,
 145                                          const gchar    *msg_str,
 146                                          Children       *children);
 147
 148 static gint wait_for_children           (Children       *children);
 149
 150 static void free_children               (Children       *children);
 151
 152 static void childinfo_close_pipes       (ChildInfo      *child_info);
 153
 154 static void create_io_dialog            (Children       *children);
 155 static void update_io_dialog            (Children       *children);
 156
 157 static void hide_io_dialog_cb           (GtkWidget      *widget,
 158                                          gpointer        data);
 159 static gint io_dialog_key_pressed_cb    (GtkWidget      *widget,
 160                                          GdkEventKey    *event,
 161                                          gpointer        data);
 162
 163 static void catch_output                (gpointer                data,
 164                                          gint                    source,
 165                                          GdkInputCondition       cond);
 166 static void catch_input                 (gpointer                data,
 167                                          gint                    source,
 168                                          GdkInputCondition       cond);
 169 static void catch_status                (gpointer                data,
 170                                          gint                    source,
 171                                          GdkInputCondition       cond);
 172
 173 static gchar *get_user_string           (const gchar    *action,
 174                                          ActionType      type);
 175
 176
 177 ActionType action_get_type(const gchar *action_str)
 178 {
 179         const gchar *p;
 180         ActionType action_type = ACTION_NONE;
 181
 182         g_return_val_if_fail(action_str,  ACTION_ERROR);
 183         g_return_val_if_fail(*action_str, ACTION_ERROR);
 184
 185         p = action_str;
 186
 187         if (p[0] == '|') {
 188                 action_type |= ACTION_PIPE_IN;
 189                 p++;
 190         } else if (p[0] == '>') {
 191                 action_type |= ACTION_USER_IN;
 192                 p++;
 193         } else if (p[0] == '*') {
 194                 action_type |= ACTION_USER_HIDDEN_IN;
 195                 p++;
 196         }
 197
 198         if (p[0] == '\0')
 199                 return ACTION_ERROR;
 200
 201         while (*p && action_type != ACTION_ERROR) {
 202                 if (p[0] == '%' && p[1]) {
 203                         switch (p[1]) {
 204                         case 'a':
 205                                 /* CLAWS: filtering action is a mutually exclusive
 206                                  * action. we can enable others if needed later. we
 207                                  * add ACTION_SINGLE | ACTION_MULTIPLE so it will
 208                                  * only be executed from the main window toolbar */
 209                                 if (p[2] == 's')  /* source messages */
 210                                         action_type = ACTION_FILTERING_ACTION
 211                                                     | ACTION_SINGLE
 212                                                     | ACTION_MULTIPLE;
 213                                 break;
 214                         case 'f':
 215                                 action_type |= ACTION_SINGLE;
 216                                 break;
 217                         case 'F':
 218                                 action_type |= ACTION_MULTIPLE;
 219                                 break;
 220                         case 'p':
 221                                 action_type |= ACTION_SINGLE;
 222                                 break;
 223                         case 's':
 224                                 action_type |= ACTION_SELECTION_STR;
 225                                 break;
 226                         case 'u':
 227                                 action_type |= ACTION_USER_STR;
 228                                 break;
 229                         case 'h':
 230                                 action_type |= ACTION_USER_HIDDEN_STR;
 231                                 break;
 232                         default:
 233                                 action_type = ACTION_ERROR;
 234                                 break;
 235                         }
 236                 } else if (p[0] == '|') {
 237                         if (p[1] == '\0')
 238                                 action_type |= ACTION_PIPE_OUT;
 239                 } else if (p[0] == '>') {
 240                         if (p[1] == '\0')
 241                                 action_type |= ACTION_INSERT;
 242                 } else if (p[0] == '&') {
 243                         if (p[1] == '\0')
 244                                 action_type |= ACTION_ASYNC;
 245                 }
 246                 p++;
 247         }
 248
 249         return action_type;
 250 }
 251
 252 static gchar *parse_action_cmd(gchar *action, MsgInfo *msginfo,
 253                                GSList *msg_list, MimeInfo *partinfo,
 254                                const gchar *user_str,
 255                                const gchar *user_hidden_str,
 256                                const gchar *sel_str)
 257 {
 258         GString *cmd;
 259         gchar *p;
 260         GSList *cur;
 261
 262         p = action;
 263
 264         if (p[0] == '|' || p[0] == '>' || p[0] == '*')
 265                 p++;
 266
 267         cmd = g_string_sized_new(strlen(action));
 268
 269         while (p[0] &&
 270                !((p[0] == '|' || p[0] == '>' || p[0] == '&') && !p[1])) {
 271                 if (p[0] == '%' && p[1]) {
 272                         switch (p[1]) {
 273                         case 'f':
 274                                 if (!parse_append_filename(cmd, msginfo)) {
 275                                         g_string_free(cmd, TRUE);
 276                                         return NULL;
 277                                 }
 278                                 p++;
 279                                 break;
 280                         case 'F':
 281                                 for (cur = msg_list; cur != NULL;
 282                                      cur = cur->next) {
 283                                         MsgInfo *msg = (MsgInfo *)cur->data;
 284
 285                                         if (!parse_append_filename(cmd, msg)) {
 286                                                 g_string_free(cmd, TRUE);
 287                                                 return NULL;
 288                                         }
 289                                         if (cur->next)
 290                                                 g_string_append_c(cmd, ' ');
 291                                 }
 292                                 p++;
 293                                 break;
 294                         case 'p':
 295                                 if (!parse_append_msgpart(cmd, msginfo,
 296                                                           partinfo)) {
 297                                         g_string_free(cmd, TRUE);
 298                                         return NULL;
 299                                 }
 300                                 p++;
 301                                 break;
 302                         case 's':
 303                                 if (sel_str)
 304                                         g_string_append(cmd, sel_str);
 305                                 p++;
 306                                 break;
 307                         case 'u':
 308                                 if (user_str)
 309                                         g_string_append(cmd, user_str);
 310                                 p++;
 311                                 break;
 312                         case 'h':
 313                                 if (user_hidden_str)
 314                                         g_string_append(cmd, user_hidden_str);
 315                                 p++;
 316                                 break;
 317                         default:
 318                                 g_string_append_c(cmd, p[0]);
 319                                 g_string_append_c(cmd, p[1]);
 320                                 p++;
 321                         }
 322                 } else {
 323                         g_string_append_c(cmd, p[0]);
 324                 }
 325                 p++;
 326         }
 327         if (cmd->len == 0) {
 328                 g_string_free(cmd, TRUE);
 329                 return NULL;
 330         }
 331
 332         p = cmd->str;
 333         g_string_free(cmd, FALSE);
 334         return p;
 335 }
 336
 337 static gboolean parse_append_filename(GString *cmd, MsgInfo *msginfo)
 338 {
 339         gchar *filename;
 340         gchar *p, *q;
 341         gchar escape_ch[] = "\\ ";
 342
 343         g_return_val_if_fail(msginfo, FALSE);
 344
 345         filename = procmsg_get_message_file(msginfo);
 346
 347         if (!filename) {
 348                 alertpanel_error(_("Could not get message file %d"),
 349                                  msginfo->msgnum);
 350                 return FALSE;
 351         }
 352
 353         p = filename;
 354         while ((q = strpbrk(p, "$\"`'\\ \t*?[]&|;<>()!#~")) != NULL) {
 355                 escape_ch[1] = *q;
 356                 *q = '\0';
 357                 g_string_append(cmd, p);
 358                 g_string_append(cmd, escape_ch);
 359                 p = q + 1;
 360         }
 361         g_string_append(cmd, p);
 362
 363         g_free(filename);
 364
 365         return TRUE;
 366 }
 367
 368 static gboolean parse_append_msgpart(GString *cmd, MsgInfo *msginfo,
 369                                      MimeInfo *partinfo)
 370 {
 371         gboolean single_part = FALSE;
 372         gchar *filename;
 373         gchar *part_filename;
 374         gint ret;
 375
 376         if (!partinfo) {
 377                 partinfo = procmime_scan_message(msginfo);
 378                 if (!partinfo) {
 379                         alertpanel_error(_("Could not get message part."));
 380                         return FALSE;
 381                 }
 382
 383                 single_part = TRUE;
 384         }
 385
 386         filename = procmsg_get_message_file_path(msginfo);
 387         part_filename = procmime_get_tmp_file_name(partinfo);
 388
 389         ret = procmime_get_part(part_filename, partinfo);
 390
 391         if (single_part)
 392                 procmime_mimeinfo_free_all(partinfo);
 393         g_free(filename);
 394
 395         if (ret < 0) {
 396                 alertpanel_error(_("Can't get part of multipart message"));
 397                 g_free(part_filename);
 398                 return FALSE;
 399         }
 400
 401         g_string_append(cmd, part_filename);
 402
 403         g_free(part_filename);
 404
 405         return TRUE;
 406 }
 407
 408 void actions_execute(gpointer data,
 409                      guint action_nb,
 410                      GtkWidget *widget,
 411                      gint source)
 412 {
 413         if (source == TOOLBAR_MAIN)
 414                 mainwin_actions_execute_cb((MainWindow*)data, action_nb, widget);
 415         else if (source == TOOLBAR_COMPOSE)
 416                 compose_actions_execute_cb((Compose*)data, action_nb, widget);
 417         else if (source == TOOLBAR_MSGVIEW)
 418                 msgview_actions_execute_cb((MessageView*)data, action_nb, widget);
 419 }
 420
 421 void action_update_mainwin_menu(GtkItemFactory *ifactory,
 422                                 gchar *branch_path,
 423                                 MainWindow *mainwin)
 424 {
 425         action_update_menu(ifactory, branch_path,
 426                            mainwin_actions_execute_cb, mainwin);
 427 }
 428
 429 void action_update_msgview_menu(GtkItemFactory *ifactory,
 430                                 gchar *branch_path,
 431                                 MessageView *msgview)
 432 {
 433         action_update_menu(ifactory, branch_path,
 434                            msgview_actions_execute_cb, msgview);
 435 }
 436
 437 void action_update_compose_menu(GtkItemFactory *ifactory,
 438                                 gchar *branch_path,
 439                                 Compose *compose)
 440 {
 441         action_update_menu(ifactory, branch_path,
 442                            compose_actions_execute_cb, compose);
 443 }
 444
 445 static void action_update_menu(GtkItemFactory *ifactory,
 446                                gchar *branch_path,
 447                                gpointer callback, gpointer data)
 448 {
 449         GtkWidget *menuitem;
 450         gchar *menu_path;
 451         GSList *cur;
 452         gchar *action, *action_p;
 453         GList *amenu;
 454         GtkItemFactoryEntry ifentry = {NULL, NULL, NULL, 0, "<Branch>"};
 455
 456         ifentry.path = branch_path;
 457         menuitem = gtk_item_factory_get_widget(ifactory, branch_path);
 458         g_return_if_fail(menuitem != NULL);
 459
 460         amenu = GTK_MENU_SHELL(menuitem)->children;
 461         while (amenu != NULL) {
 462                 GList *alist = amenu->next;
 463                 gtk_widget_destroy(GTK_WIDGET(amenu->data));
 464                 amenu = alist;
 465         }
 466
 467         ifentry.accelerator     = NULL;
 468         ifentry.callback_action = 0;
 469         ifentry.callback        = callback;
 470         ifentry.item_type       = NULL;
 471
 472         for (cur = prefs_common.actions_list; cur; cur = cur->next) {
 473                 action   = g_strdup((gchar *)cur->data);
 474                 action_p = strstr(action, ": ");
 475                 if (action_p && action_p[2] &&
 476                     action_get_type(&action_p[2]) != ACTION_ERROR) {
 477                         action_p[0] = '\0';
 478                         menu_path = g_strdup_printf("%s/%s", branch_path,
 479                                                     action);
 480                         ifentry.path = menu_path;
 481                         gtk_item_factory_create_item(ifactory, &ifentry, data,
 482                                                      1);
 483                         g_free(menu_path);
 484                 }
 485                 g_free(action);
 486                 ifentry.callback_action++;
 487         }
 488 }
 489
 490 static void compose_actions_execute_cb(Compose *compose, guint action_nb,
 491                                        GtkWidget *widget)
 492 {
 493         gchar *buf, *action;
 494         ActionType action_type;
 495
 496         g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));
 497
 498         buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
 499         g_return_if_fail(buf != NULL);
 500         action = strstr(buf, ": ");
 501         g_return_if_fail(action != NULL);
 502
 503         /* Point to the beginning of the command-line */
 504         action += 2;
 505
 506         action_type = action_get_type(action);
 507         if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE)) {
 508                 alertpanel_warning
 509                         (_("The selected action cannot be used in the compose window\n"
 510                            "because it contains %%f, %%F, %%as or %%p."));
 511                 return;
 512         }
 513
 514         execute_actions(action, NULL, compose->text, 0, NULL);
 515 }
 516
 517 static void mainwin_actions_execute_cb(MainWindow *mainwin, guint action_nb,
 518                                        GtkWidget *widget)
 519 {
 520         GSList *msg_list;
 521
 522         msg_list = summary_get_selected_msg_list(mainwin->summaryview);
 523         message_actions_execute(mainwin->messageview, action_nb, msg_list);
 524         g_slist_free(msg_list);
 525 }
 526
 527 static void msgview_actions_execute_cb(MessageView *msgview, guint action_nb,
 528                                        GtkWidget *widget)
 529 {
 530         GSList *msg_list = NULL;
 531
 532         if (msgview->msginfo)
 533                 msg_list = g_slist_append(msg_list, msgview->msginfo);
 534         message_actions_execute(msgview, action_nb, msg_list);
 535         g_slist_free(msg_list);
 536 }
 537
 538 static void message_actions_execute(MessageView *msgview, guint action_nb,
 539                                     GSList *msg_list)
 540 {
 541         TextView *textview;
 542         MimeInfo *partinfo;
 543         gchar *buf;
 544         gchar *action;
 545         GtkWidget *text = NULL;
 546         guint body_pos = 0;
 547         ActionType action_type;
 548
 549         g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));
 550
 551         buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
 552
 553         g_return_if_fail(buf);
 554         g_return_if_fail((action = strstr(buf, ": ")));
 555
 556         /* Point to the beginning of the command-line */
 557         action += 2;
 558
 559         textview = messageview_get_current_textview(msgview);
 560         if (textview) {
 561                 text     = textview->text;
 562                 body_pos = textview->body_pos;
 563         }
 564         partinfo = messageview_get_selected_mime_part(msgview);
 565
 566         /* this command will alter the message text */
 567         action_type = action_get_type(action);
 568         if (action_type & (ACTION_PIPE_OUT | ACTION_INSERT))
 569                 msgview->filtered = TRUE;
 570
 571         if (action_type & ACTION_FILTERING_ACTION)
 572                 /* CLAWS: most of the above code is not necessary for applying
 573                  * filtering */
 574                 execute_filtering_actions(action, msg_list);
 575         else
 576                 execute_actions(action, msg_list, text, body_pos, partinfo);
 577 }
 578
 579 static gboolean execute_filtering_actions(gchar *action, GSList *msglist)
 580 {
 581         GSList *action_list, *p;
 582         const gchar *sbegin, *send;
 583         gchar *action_string;
 584
 585         if (NULL == (sbegin = strstr2(action, "%as{")))
 586                 return FALSE;
 587         sbegin += sizeof "%as{" - 1;
 588         if (NULL == (send = strrchr(sbegin, '}')))
 589                 return FALSE;
 590         action_string = g_strndup(sbegin, send - sbegin);
 591
 592         action_list = matcher_parser_get_action_list(action_string);
 593         g_free(action_string);
 594         if (action_list == NULL) return FALSE;
 595
 596         /* apply actions on each message info */
 597         for (p = msglist; p && p->data; p = g_slist_next(p))
 598                 filteringaction_apply_action_list(action_list, (MsgInfo *) p->data);
 599
 600         for (p = action_list; p; p = g_slist_next(p))
 601                 if (p->data) filteringaction_free(p->data);
 602         g_slist_free(action_list);
 603         return TRUE;
 604 }
 605
 606 static gboolean execute_actions(gchar *action, GSList *msg_list,
 607                                 GtkWidget *text,
 608                                 gint body_pos, MimeInfo *partinfo)
 609 {
 610         GSList *children_list = NULL;
 611         gint is_ok  = TRUE;
 612         gint msg_list_len;
 613         Children *children;
 614         ChildInfo *child_info;
 615         ActionType action_type;
 616         MsgInfo *msginfo;
 617         gchar *cmd;
 618         gchar *sel_str = NULL;
 619         gchar *msg_str = NULL;
 620         gchar *user_str = NULL;
 621         gchar *user_hidden_str = NULL;
 622         GtkTextIter start_iter, end_iter;
 623         gboolean is_selection = FALSE;
 624
 625         g_return_val_if_fail(action && *action, FALSE);
 626
 627         action_type = action_get_type(action);
 628
 629         if (action_type == ACTION_ERROR)
 630                 return FALSE;         /* ERR: syntax error */
 631
 632         if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE) && !msg_list)
 633                 return FALSE;         /* ERR: file command without selection */
 634
 635         msg_list_len = g_slist_length(msg_list);
 636
 637         if (action_type & (ACTION_PIPE_OUT | ACTION_PIPE_IN | ACTION_INSERT)) {
 638                 if (msg_list_len > 1)
 639                         return FALSE; /* ERR: pipe + multiple selection */
 640                 if (!text)
 641                         return FALSE; /* ERR: pipe and no displayed text */
 642         }
 643
 644         if (action_type & ACTION_SELECTION_STR) {
 645                 if (!text)
 646                         return FALSE; /* ERR: selection string but no text */
 647         }
 648
 649         if (text) {
 650                 GtkTextBuffer *textbuf;
 651
 652                 textbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 653                 is_selection = gtk_text_buffer_get_selection_bounds
 654                         (textbuf, &start_iter, &end_iter);
 655                 if (!is_selection) {
 656                         gtk_text_buffer_get_iter_at_offset
 657                                 (textbuf, &start_iter, body_pos);
 658                         gtk_text_buffer_get_end_iter(textbuf, &end_iter);
 659                 }
 660                 msg_str = gtk_text_buffer_get_text
 661                         (textbuf, &start_iter, &end_iter, FALSE);
 662                 if (is_selection)
 663                         sel_str = g_strdup(msg_str);
 664         }
 665
 666         if (action_type & ACTION_USER_STR) {
 667                 if (!(user_str = get_user_string(action, ACTION_USER_STR))) {
 668                         g_free(msg_str);
 669                         g_free(sel_str);
 670                         return FALSE;
 671                 }
 672         }
 673
 674         if (action_type & ACTION_USER_HIDDEN_STR) {
 675                 if (!(user_hidden_str =
 676                         get_user_string(action, ACTION_USER_HIDDEN_STR))) {
 677                         g_free(msg_str);
 678                         g_free(sel_str);
 679                         g_free(user_str);
 680                         return FALSE;
 681                 }
 682         }
 683
 684         if (text && (action_type & ACTION_PIPE_OUT)) {
 685                 GtkTextBuffer *textbuf;
 686                 textbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 687                 gtk_text_buffer_delete(textbuf, &start_iter, &end_iter);
 688         }
 689
 690         children = g_new0(Children, 1);
 691
 692         children->action      = g_strdup(action);
 693         children->action_type = action_type;
 694         children->msg_text    = text;
 695         children->is_selection = is_selection;
 696
 697         if ((action_type & (ACTION_USER_IN | ACTION_USER_HIDDEN_IN)) &&
 698             ((action_type & ACTION_SINGLE) == 0 || msg_list_len == 1))
 699                 children->open_in = 1;
 700
 701         if (action_type & ACTION_SINGLE) {
 702                 GSList *cur;
 703
 704                 for (cur = msg_list; cur && is_ok == TRUE; cur = cur->next) {
 705                         msginfo = (MsgInfo *)cur->data;
 706                         if (!msginfo) {
 707                                 is_ok  = FALSE; /* ERR: msginfo missing */
 708                                 break;
 709                         }
 710                         cmd = parse_action_cmd(action, msginfo, msg_list,
 711                                                partinfo, user_str,
 712                                                user_hidden_str, sel_str);
 713                         if (!cmd) {
 714                                 debug_print("Action command error\n");
 715                                 is_ok  = FALSE; /* ERR: incorrect command */
 716                                 break;
 717                         }
 718                         if ((child_info = fork_child(cmd, msg_str, children))) {
 719                                 children_list = g_slist_append(children_list,
 720                                                                child_info);
 721                         }
 722                         g_free(cmd);
 723                 }
 724         } else {
 725                 cmd = parse_action_cmd(action, NULL, msg_list, partinfo,
 726                                        user_str, user_hidden_str, sel_str);
 727                 if (cmd) {
 728                         if ((child_info = fork_child(cmd, msg_str, children))) {
 729                                 children_list = g_slist_append(children_list,
 730                                                                child_info);
 731                         }
 732                         g_free(cmd);
 733                 } else
 734                         is_ok  = FALSE;         /* ERR: incorrect command */
 735         }
 736
 737         g_free(msg_str);
 738         g_free(sel_str);
 739         g_free(user_str);
 740         g_free(user_hidden_str);
 741
 742         if (!children_list) {
 743                  /* If not waiting for children, return */
 744                 free_children(children);
 745         } else {
 746                 GSList *cur;
 747
 748                 children->list        = children_list;
 749                 children->nb          = g_slist_length(children_list);
 750                 children->initial_nb  = children->nb;
 751
 752                 for (cur = children_list; cur; cur = cur->next) {
 753                         child_info = (ChildInfo *) cur->data;
 754                         child_info->tag_status =
 755                                 gdk_input_add(child_info->chld_status,
 756                                               GDK_INPUT_READ,
 757                                               catch_status, child_info);
 758                 }
 759
 760                 create_io_dialog(children);
 761         }
 762
 763         return is_ok;
 764 }
 765
 766 static ChildInfo *fork_child(gchar *cmd, const gchar *msg_str,
 767                              Children *children)
 768 {
 769 #ifdef G_OS_UNIX
 770         gint chld_in[2], chld_out[2], chld_err[2], chld_status[2];
 771         gchar *cmdline[4], *ret_str;
 772         pid_t pid, gch_pid;
 773         ChildInfo *child_info;
 774         gint sync;
 775         gssize by_written = 0, by_read = 0;
 776
 777         sync = !(children->action_type & ACTION_ASYNC);
 778
 779         chld_in[0] = chld_in[1] = chld_out[0] = chld_out[1] = chld_err[0]
 780                 = chld_err[1] = chld_status[0] = chld_status[1] = -1;
 781
 782         if (sync) {
 783                 if (pipe(chld_status) || pipe(chld_in) || pipe(chld_out) ||
 784                     pipe(chld_err)) {
 785                         alertpanel_error(_("Command could not be started. "
 786                                            "Pipe creation failed.\n%s"),
 787                                         g_strerror(errno));
 788                         /* Closing fd = -1 fails silently */
 789                         close(chld_in[0]);
 790                         close(chld_in[1]);
 791                         close(chld_out[0]);
 792                         close(chld_out[1]);
 793                         close(chld_err[0]);
 794                         close(chld_err[1]);
 795                         close(chld_status[0]);
 796                         close(chld_status[1]);
 797                         return NULL; /* Pipe error */
 798                 }
 799         }
 800
 801         debug_print("Forking child and grandchild.\n");
 802         debug_print("Executing: /bin/sh -c %s\n", cmd);
 803
 804         pid = fork();
 805         if (pid == 0) { /* Child */
 806                 if (setpgid(0, 0))
 807                         perror("setpgid");
 808
 809 #ifdef GDK_WINDOWING_X11
 810                 close(ConnectionNumber(gdk_display));
 811 #endif /* GDK_WINDOWING_X11 */
 812
 813                 gch_pid = fork();
 814
 815                 if (gch_pid == 0) {
 816                         if (setpgid(0, getppid()))
 817                                 perror("setpgid");
 818
 819                         if (sync) {
 820                                 if (children->action_type &
 821                                     (ACTION_PIPE_IN |
 822                                      ACTION_USER_IN |
 823                                      ACTION_USER_HIDDEN_IN)) {
 824                                         close(fileno(stdin));
 825                                         dup  (chld_in[0]);
 826                                 }
 827                                 close(chld_in[0]);
 828                                 close(chld_in[1]);
 829
 830                                 close(fileno(stdout));
 831                                 dup  (chld_out[1]);
 832                                 close(chld_out[0]);
 833                                 close(chld_out[1]);
 834
 835                                 close(fileno(stderr));
 836                                 dup  (chld_err[1]);
 837                                 close(chld_err[0]);
 838                                 close(chld_err[1]);
 839                         }
 840
 841                         cmdline[0] = "sh";
 842                         cmdline[1] = "-c";
 843                         ret_str = g_locale_from_utf8(cmd, strlen(cmd),
 844                                                      &by_read, &by_written,
 845                                                      NULL);
 846                         if (ret_str && by_written)
 847                                 cmdline[2] = ret_str;
 848                         else
 849                                 cmdline[2] = cmd;
 850                         cmdline[3] = NULL;
 851                         execvp("/bin/sh", cmdline);
 852
 853                         perror("execvp");
 854                         g_free(ret_str);
 855                         _exit(1);
 856                 } else if (gch_pid < (pid_t) 0) { /* Fork error */
 857                         if (sync)
 858                                 write(chld_status[1], "1\n", 2);
 859                         perror("fork");
 860                         _exit(1);
 861                 } else { /* Child */
 862                         if (sync) {
 863                                 close(chld_in[0]);
 864                                 close(chld_in[1]);
 865                                 close(chld_out[0]);
 866                                 close(chld_out[1]);
 867                                 close(chld_err[0]);
 868                                 close(chld_err[1]);
 869                                 close(chld_status[0]);
 870
 871                                 debug_print("Child: Waiting for grandchild\n");
 872                                 waitpid(gch_pid, NULL, 0);
 873                                 debug_print("Child: grandchild ended\n");
 874                                 write(chld_status[1], "0\n", 2);
 875                                 close(chld_status[1]);
 876                         }
 877                         _exit(0);
 878                 }
 879         } else if (pid < 0) { /* Fork error */
 880                 alertpanel_error(_("Could not fork to execute the following "
 881                                    "command:\n%s\n%s"),
 882                                  cmd, g_strerror(errno));
 883                 return NULL;
 884         }
 885
 886         /* Parent */
 887
 888         if (!sync) {
 889                 waitpid(pid, NULL, 0);
 890                 return NULL;
 891         }
 892
 893         close(chld_in[0]);
 894         if (!(children->action_type &
 895               (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 896                 close(chld_in[1]);
 897         close(chld_out[1]);
 898         close(chld_err[1]);
 899         close(chld_status[1]);
 900
 901         child_info = g_new0(ChildInfo, 1);
 902
 903         child_info->children    = children;
 904
 905         child_info->pid         = pid;
 906         child_info->cmd         = g_strdup(cmd);
 907         child_info->new_out     = FALSE;
 908         child_info->output      = g_string_new(NULL);
 909         child_info->chld_in     =
 910                 (children->action_type &
 911                  (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN))
 912                         ? chld_in [1] : -1;
 913         child_info->chld_out    = chld_out[0];
 914         child_info->chld_err    = chld_err[0];
 915         child_info->chld_status = chld_status[0];
 916         child_info->tag_in      = -1;
 917         child_info->tag_out     = gdk_input_add(chld_out[0], GDK_INPUT_READ,
 918                                                 catch_output, child_info);
 919         child_info->tag_err     = gdk_input_add(chld_err[0], GDK_INPUT_READ,
 920                                                 catch_output, child_info);
 921
 922         if (!(children->action_type &
 923               (ACTION_PIPE_IN | ACTION_PIPE_OUT | ACTION_INSERT)))
 924                 return child_info;
 925
 926         if ((children->action_type & ACTION_PIPE_IN) && msg_str) {
 927                 ret_str = g_locale_from_utf8(msg_str, strlen(msg_str),
 928                                              &by_read, &by_written, NULL);
 929                 if (ret_str && by_written) {
 930                         write(chld_in[1], ret_str, strlen(ret_str));
 931                         g_free(ret_str);
 932                 } else
 933                         write(chld_in[1], msg_str, strlen(msg_str));
 934                 if (!(children->action_type &
 935                       (ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 936                         close(chld_in[1]);
 937                 child_info->chld_in = -1; /* No more input */
 938         }
 939
 940         return child_info;
 941 #else
 942         return NULL;
 943 #endif /* G_OS_UNIX */
 944 }
 945
 946 static void kill_children_cb(GtkWidget *widget, gpointer data)
 947 {
 948 #ifdef G_OS_UNIX
 949         GSList *cur;
 950         Children *children = (Children *) data;
 951         ChildInfo *child_info;
 952
 953         for (cur = children->list; cur; cur = cur->next) {
 954                 child_info = (ChildInfo *)(cur->data);
 955                 debug_print("Killing child group id %d\n", child_info->pid);
 956                 if (child_info->pid && kill(-child_info->pid, SIGTERM) < 0)
 957                         perror("kill");
 958         }
 959 #endif /* G_OS_UNIX */
 960 }
 961
 962 static gint wait_for_children(Children *children)
 963 {
 964         gboolean new_output;
 965         ChildInfo *child_info;
 966         GSList *cur;
 967         gint nb = children->nb;
 968
 969         children->nb = 0;
 970
 971         cur = children->list;
 972         new_output = FALSE;
 973         while (cur) {
 974                 child_info = (ChildInfo *)cur->data;
 975                 if (child_info->pid)
 976                         children->nb++;
 977                 new_output |= child_info->new_out;
 978                 cur = cur->next;
 979         }
 980
 981         children->output |= new_output;
 982
 983         if (new_output || (children->dialog && (nb != children->nb)))
 984                 update_io_dialog(children);
 985
 986         if (children->nb)
 987                 return FALSE;
 988
 989         if (!children->dialog) {
 990                 free_children(children);
 991         } else if (!children->output) {
 992                 gtk_widget_destroy(children->dialog);
 993         }
 994
 995         return FALSE;
 996 }
 997
 998 static void send_input(GtkWidget *w, gpointer data)
 999 {
1000         Children *children = (Children *) data;
1001         ChildInfo *child_info = (ChildInfo *) children->list->data;
1002
1003         child_info->tag_in = gdk_input_add(child_info->chld_in,
1004                                            GDK_INPUT_WRITE,
1005                                            catch_input, children);
1006         gtk_widget_set_sensitive(children->input_hbox, FALSE);
1007 }
1008
1009 static gint delete_io_dialog_cb(GtkWidget *w, GdkEvent *e, gpointer data)
1010 {
1011         hide_io_dialog_cb(w, data);
1012         return TRUE;
1013 }
1014
1015 static void hide_io_dialog_cb(GtkWidget *w, gpointer data)
1016 {
1017
1018         Children *children = (Children *)data;
1019
1020         if (!children->nb) {
1021                 g_signal_handlers_disconnect_matched
1022                         (G_OBJECT(children->dialog), G_SIGNAL_MATCH_DATA,
1023                          0, 0, NULL, NULL, children);
1024                 gtk_widget_destroy(children->dialog);
1025                 free_children(children);
1026         }
1027 }
1028
1029 static gint io_dialog_key_pressed_cb(GtkWidget *widget, GdkEventKey *event,
1030                                      gpointer data)
1031 {
1032         if (event && event->keyval == GDK_Escape)
1033                 hide_io_dialog_cb(widget, data);
1034         return TRUE;
1035 }
1036
1037 static void childinfo_close_pipes(ChildInfo *child_info)
1038 {
1039         /* stdout and stderr pipes are guaranteed to be removed by
1040          * their handler, but in case where we receive child exit notification
1041          * before grand-child's pipes closing signals, we check them and close
1042          * them if necessary
1043          */
1044         if (child_info->tag_in > 0)
1045                 gdk_input_remove(child_info->tag_in);
1046         if (child_info->tag_out > 0)
1047                 gdk_input_remove(child_info->tag_out);
1048         if (child_info->tag_err > 0)
1049                 gdk_input_remove(child_info->tag_err);
1050
1051         if (child_info->chld_in >= 0)
1052                 close(child_info->chld_in);
1053         if (child_info->chld_out >= 0)
1054                 close(child_info->chld_out);
1055         if (child_info->chld_err >= 0)
1056                 close(child_info->chld_err);
1057
1058         close(child_info->chld_status);
1059 }
1060
1061 static void free_children(Children *children)
1062 {
1063         ChildInfo *child_info;
1064
1065         debug_print("Freeing children data %p\n", children);
1066
1067         g_free(children->action);
1068         while (children->list != NULL) {
1069                 child_info = (ChildInfo *)children->list->data;
1070                 g_free(child_info->cmd);
1071                 g_string_free(child_info->output, TRUE);
1072                 children->list = g_slist_remove(children->list, child_info);
1073                 g_free(child_info);
1074         }
1075         g_free(children);
1076 }
1077
1078 static void update_io_dialog(Children *children)
1079 {
1080         GSList *cur;
1081
1082         debug_print("Updating actions input/output dialog.\n");
1083
1084         if (children->progress_bar) {
1085                 gchar *text;
1086
1087                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(children->progress_bar),
1088                                               (gdouble) (children->initial_nb - children->nb) /
1089                                               (gdouble) children->initial_nb);
1090                 text = g_strdup_printf("%s %d/%d", _("Completed"),
1091                                        children->initial_nb - children->nb,
1092                                        children->initial_nb);
1093                 gtk_progress_bar_set_text(GTK_PROGRESS_BAR(children->progress_bar), text);
1094                 g_free(text);
1095         }
1096
1097         if (!children->nb) {
1098                 gtk_widget_set_sensitive(children->abort_btn, FALSE);
1099                 gtk_widget_set_sensitive(children->close_btn, TRUE);
1100                 if (children->input_hbox)
1101                         gtk_widget_set_sensitive(children->input_hbox, FALSE);
1102                 gtk_widget_grab_focus(children->close_btn);
1103                 g_signal_connect(G_OBJECT(children->dialog),
1104                                  "key_press_event",
1105                                  G_CALLBACK(io_dialog_key_pressed_cb),
1106                                  children);
1107         }
1108
1109         if (children->output) {
1110                 GtkWidget *text = children->text;
1111                 GtkTextBuffer *textbuf;
1112                 GtkTextIter iter, start_iter, end_iter;
1113                 gchar *caption;
1114                 ChildInfo *child_info;
1115
1116                 gtk_widget_show(children->scrolledwin);
1117                 textbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
1118                 gtk_text_buffer_get_bounds(textbuf, &start_iter, &end_iter);
1119                 gtk_text_buffer_delete(textbuf, &start_iter, &end_iter);
1120                 gtk_text_buffer_get_start_iter(textbuf, &iter);
1121
1122                 for (cur = children->list; cur; cur = cur->next) {
1123                         child_info = (ChildInfo *)cur->data;
1124                         if (child_info->pid)
1125                                 caption = g_strdup_printf
1126                                         (_("--- Running: %s\n"),
1127                                          child_info->cmd);
1128                         else
1129                                 caption = g_strdup_printf
1130                                         (_("--- Ended: %s\n"),
1131                                          child_info->cmd);
1132
1133                         gtk_text_buffer_insert(textbuf, &iter, caption, -1);
1134                         gtk_text_buffer_insert(textbuf, &iter,
1135                                                child_info->output->str, -1);
1136                         g_free(caption);
1137                         child_info->new_out = FALSE;
1138                 }
1139         }
1140 }
1141
1142 static void create_io_dialog(Children *children)
1143 {
1144         GtkWidget *dialog;
1145         GtkWidget *vbox;
1146         GtkWidget *entry = NULL;
1147         GtkWidget *input_hbox = NULL;
1148         GtkWidget *send_button;
1149         GtkWidget *label;
1150         GtkWidget *text;
1151         GtkWidget *scrolledwin;
1152         GtkWidget *hbox;
1153         GtkWidget *progress_bar = NULL;
1154         GtkWidget *abort_button;
1155         GtkWidget *close_button;
1156
1157         debug_print("Creating action IO dialog\n");
1158
1159         dialog = gtk_dialog_new();
1160         gtk_container_set_border_width
1161                 (GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 5);
1162         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
1163         gtk_window_set_title(GTK_WINDOW(dialog), _("Action's input/output"));
1164         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
1165         manage_window_set_transient(GTK_WINDOW(dialog));
1166         g_signal_connect(G_OBJECT(dialog), "delete_event",
1167                          G_CALLBACK(delete_io_dialog_cb), children);
1168         g_signal_connect(G_OBJECT(dialog), "destroy",
1169                          G_CALLBACK(hide_io_dialog_cb),
1170                          children);
1171
1172         vbox = gtk_vbox_new(FALSE, 8);
1173         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), vbox);
1174         gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
1175         gtk_widget_show(vbox);
1176
1177         label = gtk_label_new(children->action);
1178         gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
1179         gtk_widget_show(label);
1180
1181         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
1182         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
1183                                        GTK_POLICY_AUTOMATIC,
1184                                        GTK_POLICY_AUTOMATIC);
1185         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
1186                                             GTK_SHADOW_IN);
1187         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
1188         gtk_widget_set_size_request(scrolledwin, 560, 200);
1189         gtk_widget_hide(scrolledwin);
1190
1191         text = gtk_text_view_new();
1192
1193         if (prefs_common.textfont) {
1194                 PangoFontDescription *font_desc;
1195                 font_desc = pango_font_description_from_string
1196                         (prefs_common.textfont);
1197                 if (font_desc) {
1198                         gtk_widget_modify_font(text, font_desc);
1199                         pango_font_description_free(font_desc);
1200                 }
1201         }
1202
1203         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
1204         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD);
1205         gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
1206         gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
1207         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
1208         gtk_widget_show(text);
1209
1210         if (children->open_in) {
1211                 input_hbox = gtk_hbox_new(FALSE, 8);
1212                 gtk_widget_show(input_hbox);
1213
1214                 entry = gtk_entry_new();
1215                 gtk_widget_set_size_request(entry, 320, -1);
1216                 g_signal_connect(G_OBJECT(entry), "activate",
1217                                  G_CALLBACK(send_input), children);
1218                 gtk_box_pack_start(GTK_BOX(input_hbox), entry, TRUE, TRUE, 0);
1219                 if (children->action_type & ACTION_USER_HIDDEN_IN)
1220                         gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE);
1221                 gtk_widget_show(entry);
1222
1223                 send_button = gtk_button_new_from_stock(GTK_STOCK_EXECUTE);
1224                 g_signal_connect(G_OBJECT(send_button), "clicked",
1225                                  G_CALLBACK(send_input), children);
1226                 gtk_box_pack_start(GTK_BOX(input_hbox), send_button, FALSE,
1227                                    FALSE, 0);
1228                 gtk_widget_show(send_button);
1229
1230                 gtk_box_pack_start(GTK_BOX(vbox), input_hbox, FALSE, FALSE, 0);
1231                 gtk_widget_grab_focus(entry);
1232         }
1233
1234         if (children->initial_nb > 1) {
1235                 gchar * text;
1236
1237                 progress_bar = gtk_progress_bar_new();
1238                 gtk_progress_bar_set_orientation(GTK_PROGRESS_BAR(progress_bar),
1239                                 GTK_PROGRESS_LEFT_TO_RIGHT);
1240                 text = g_strdup_printf("%s 0/%d\n", _("Completed"),
1241                                        children->initial_nb);
1242                 gtk_progress_bar_set_text(GTK_PROGRESS_BAR(progress_bar),
1243                                           text);
1244                 g_free(text);
1245                 gtk_box_pack_start(GTK_BOX(vbox), progress_bar, FALSE, FALSE, 0);
1246                 gtk_widget_show(progress_bar);
1247         }
1248
1249         gtkut_stock_button_set_create(&hbox, &abort_button, GTK_STOCK_STOP,
1250                                       &close_button, GTK_STOCK_CLOSE, NULL, NULL);
1251         g_signal_connect(G_OBJECT(abort_button), "clicked",
1252                          G_CALLBACK(kill_children_cb), children);
1253         g_signal_connect(G_OBJECT(close_button), "clicked",
1254                          G_CALLBACK(hide_io_dialog_cb), children);
1255         gtk_widget_show(hbox);
1256
1257         if (children->nb)
1258                 gtk_widget_set_sensitive(close_button, FALSE);
1259
1260         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), hbox);
1261
1262         children->dialog       = dialog;
1263         children->scrolledwin  = scrolledwin;
1264         children->text         = text;
1265         children->input_hbox   = children->open_in ? input_hbox : NULL;
1266         children->input_entry  = children->open_in ? entry : NULL;
1267         children->progress_bar = progress_bar;
1268         children->abort_btn    = abort_button;
1269         children->close_btn    = close_button;
1270
1271         gtk_widget_show(dialog);
1272 }
1273
1274 static void catch_status(gpointer data, gint source, GdkInputCondition cond)
1275 {
1276         ChildInfo *child_info = (ChildInfo *)data;
1277         gchar buf;
1278         gint c;
1279
1280         gdk_input_remove(child_info->tag_status);
1281
1282         c = read(source, &buf, 1);
1283         debug_print("Child returned %c\n", buf);
1284
1285 #ifdef G_OS_UNIX
1286         waitpid(-child_info->pid, NULL, 0);
1287 #endif
1288         childinfo_close_pipes(child_info);
1289         child_info->pid = 0;
1290
1291         wait_for_children(child_info->children);
1292 }
1293
1294 static void catch_input(gpointer data, gint source, GdkInputCondition cond)
1295 {
1296         Children *children = (Children *)data;
1297         ChildInfo *child_info = (ChildInfo *)children->list->data;
1298         gchar *input, *ret_str;
1299         gint c, count, len;
1300         gssize by_read = 0, by_written = 0;
1301
1302         debug_print("Sending input to grand child.\n");
1303         if (!(cond && GDK_INPUT_WRITE))
1304                 return;
1305
1306         gdk_input_remove(child_info->tag_in);
1307         child_info->tag_in = -1;
1308
1309         input = gtk_editable_get_chars(GTK_EDITABLE(children->input_entry),
1310                                        0, -1);
1311         ret_str = g_locale_from_utf8(input, strlen(input), &by_read,
1312                                      &by_written, NULL);
1313         if (ret_str && by_written) {
1314                 g_free(input);
1315                 input = ret_str;
1316         }
1317
1318         len = strlen(input);
1319         count = 0;
1320
1321         do {
1322                 c = write(child_info->chld_in, input + count, len - count);
1323                 if (c >= 0)
1324                         count += c;
1325         } while (c >= 0 && count < len);
1326
1327         if (c >= 0)
1328                 write(child_info->chld_in, "\n", 2);
1329
1330         g_free(input);
1331
1332         gtk_entry_set_text(GTK_ENTRY(children->input_entry), "");
1333         gtk_widget_set_sensitive(children->input_hbox, TRUE);
1334         close(child_info->chld_in);
1335         child_info->chld_in = -1;
1336         debug_print("Input to grand child sent.\n");
1337 }
1338
1339 static void catch_output(gpointer data, gint source, GdkInputCondition cond)
1340 {
1341         ChildInfo *child_info = (ChildInfo *)data;
1342         gint c;
1343         gchar buf[BUFFSIZE];
1344
1345         debug_print("Catching grand child's output.\n");
1346         if (child_info->children->action_type &
1347             (ACTION_PIPE_OUT | ACTION_INSERT)
1348             && source == child_info->chld_out) {
1349                 GtkTextView *text =
1350                         GTK_TEXT_VIEW(child_info->children->msg_text);
1351                 GtkTextBuffer *textbuf = gtk_text_view_get_buffer(text);
1352                 GtkTextIter iter;
1353                 GtkTextMark *mark;
1354                 gint ins_pos;
1355
1356                 mark = gtk_text_buffer_get_insert(textbuf);
1357                 gtk_text_buffer_get_iter_at_mark(textbuf, &iter, mark);
1358                 ins_pos = gtk_text_iter_get_offset(&iter);
1359
1360                 while (TRUE) {
1361                         gsize bytes_read = 0, bytes_written = 0;
1362                         gchar *ret_str;
1363
1364                         c = read(source, buf, sizeof(buf) - 1);
1365                         if (c == 0)
1366                                 break;
1367
1368                         ret_str = g_locale_to_utf8
1369                                 (buf, c, &bytes_read, &bytes_written, NULL);
1370                         if (ret_str && bytes_written > 0) {
1371                                 gtk_text_buffer_insert
1372                                         (textbuf, &iter, ret_str,
1373                                          bytes_written);
1374                                 g_free(ret_str);
1375                         } else
1376                                 gtk_text_buffer_insert(textbuf, &iter, buf, c);
1377                 }
1378
1379                 if (child_info->children->is_selection) {
1380                         GtkTextIter ins;
1381
1382                         gtk_text_buffer_get_iter_at_offset
1383                                 (textbuf, &ins, ins_pos);
1384                         gtk_text_buffer_select_range(textbuf, &ins, &iter);
1385                 }
1386         } else {
1387                 c = read(source, buf, sizeof(buf) - 1);
1388                 if (c > 0) {
1389                         gsize bytes_read = 0, bytes_written = 0;
1390                         gchar *ret_str;
1391
1392                         ret_str = g_locale_to_utf8
1393                                 (buf, c, &bytes_read, &bytes_written, NULL);
1394                         if (ret_str && bytes_written > 0) {
1395                                 g_string_append_len
1396                                         (child_info->output, ret_str,
1397                                          bytes_written);
1398                                 g_free(ret_str);
1399                         } else
1400                                 g_string_append_len(child_info->output, buf, c);
1401
1402                         child_info->new_out = TRUE;
1403                 }
1404         }
1405         if (c == 0) {
1406                 if (source == child_info->chld_out) {
1407                         gdk_input_remove(child_info->tag_out);
1408                         child_info->tag_out = -1;
1409                         close(child_info->chld_out);
1410                         child_info->chld_out = -1;
1411                 } else {
1412                         gdk_input_remove(child_info->tag_err);
1413                         child_info->tag_err = -1;
1414                         close(child_info->chld_err);
1415                         child_info->chld_err = -1;
1416                 }
1417         }
1418
1419         wait_for_children(child_info->children);
1420 }
1421
1422 static gchar *get_user_string(const gchar *action, ActionType type)
1423 {
1424         gchar *message;
1425         gchar *user_str = NULL;
1426
1427         switch (type) {
1428         case ACTION_USER_HIDDEN_STR:
1429                 message = g_strdup_printf
1430                         (_("Enter the argument for the following action:\n"
1431                            "('%%h' will be replaced with the argument)\n"
1432                            "  %s"),
1433                          action);
1434                 user_str = input_dialog_with_invisible
1435                         (_("Action's hidden user argument"), message, NULL);
1436                 break;
1437         case ACTION_USER_STR:
1438                 message = g_strdup_printf
1439                         (_("Enter the argument for the following action:\n"
1440                            "('%%u' will be replaced with the argument)\n"
1441                            "  %s"),
1442                          action);
1443                 user_str = input_dialog
1444                         (_("Action's user argument"), message, NULL);
1445                 break;
1446         default:
1447                 g_warning("Unsupported action type %d", type);
1448         }
1449
1450         return user_str;
1451 }