src/action.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2003 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 <gtk/gtk.h>
  28 #include <gdk/gdkkeysyms.h>
  29 #include <gdk/gdkx.h>
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32 #include <string.h>
  33 #include <errno.h>
  34 #include <sys/types.h>
  35 #include <sys/wait.h>
  36 #include <signal.h>
  37 #include <unistd.h>
  38
  39 #include "intl.h"
  40 #include "utils.h"
  41 #include "gtkutils.h"
  42 #include "manage_window.h"
  43 #include "mainwindow.h"
  44 #include "prefs_common.h"
  45 #include "alertpanel.h"
  46 #include "inputdialog.h"
  47 #include "action.h"
  48 #include "compose.h"
  49 #include "procmsg.h"
  50 #include "gtkstext.h"
  51 #include "textview.h"
  52 #include "matcher_parser.h" /* CLAWS */
  53 #include "filtering.h"
  54
  55 typedef struct _Children                Children;
  56 typedef struct _ChildInfo               ChildInfo;
  57 typedef struct _UserStringDialog        UserStringDialog;
  58
  59 struct _Children
  60 {
  61         GtkWidget       *dialog;
  62         GtkWidget       *text;
  63         GtkWidget       *input_entry;
  64         GtkWidget       *input_hbox;
  65         GtkWidget       *progress_bar;
  66         GtkWidget       *abort_btn;
  67         GtkWidget       *close_btn;
  68         GtkWidget       *scrolledwin;
  69
  70         gchar           *action;
  71         ActionType       action_type;
  72         GSList          *list;
  73         gint             nb;
  74         gint             initial_nb;
  75         gint             open_in;
  76         gboolean         output;
  77
  78         GtkWidget       *msg_text;
  79         GdkFont         *msgfont;
  80 };
  81
  82 struct _ChildInfo
  83 {
  84         Children        *children;
  85         gchar           *cmd;
  86         pid_t            pid;
  87         gint             chld_in;
  88         gint             chld_out;
  89         gint             chld_err;
  90         gint             chld_status;
  91         gint             tag_in;
  92         gint             tag_out;
  93         gint             tag_err;
  94         gint             tag_status;
  95         gint             new_out;
  96
  97         GString         *output;
  98 };
  99
 100 static void action_update_menu          (GtkItemFactory *ifactory,
 101                                          gchar          *branch_path,
 102                                          gpointer        callback,
 103                                          gpointer        data);
 104 static void compose_actions_execute_cb  (Compose        *compose,
 105                                          guint           action_nb,
 106                                          GtkWidget      *widget);
 107 static void mainwin_actions_execute_cb  (MainWindow     *mainwin,
 108                                          guint           action_nb,
 109                                          GtkWidget      *widget);
 110 static void msgview_actions_execute_cb  (MessageView    *msgview,
 111                                          guint           action_nb,
 112                                          GtkWidget      *widget);
 113 static void message_actions_execute     (MessageView    *msgview,
 114                                          guint           action_nb,
 115                                          GSList         *msg_list);
 116
 117 static gboolean execute_filtering_actions(gchar         *action,
 118                                           GSList        *msglist);
 119
 120 static gboolean execute_actions         (gchar          *action,
 121                                          GSList         *msg_list,
 122                                          GtkWidget      *text,
 123                                          GdkFont        *msgfont,
 124                                          gint            body_pos,
 125                                          MimeInfo       *partinfo);
 126
 127 static gchar *parse_action_cmd          (gchar          *action,
 128                                          MsgInfo        *msginfo,
 129                                          GSList         *msg_list,
 130                                          MimeInfo       *partinfo,
 131                                          const gchar    *user_str,
 132                                          const gchar    *user_hidden_str,
 133                                          const gchar    *sel_str);
 134 static gboolean parse_append_filename   (GString        *cmd,
 135                                          MsgInfo        *msginfo);
 136
 137 static gboolean parse_append_msgpart    (GString        *cmd,
 138                                          MsgInfo        *msginfo,
 139                                          MimeInfo       *partinfo);
 140
 141 static ChildInfo *fork_child            (gchar          *cmd,
 142                                          const gchar    *msg_str,
 143                                          Children       *children);
 144
 145 static gint wait_for_children           (Children       *children);
 146
 147 static void free_children               (Children       *children);
 148
 149 static void childinfo_close_pipes       (ChildInfo      *child_info);
 150
 151 static void create_io_dialog            (Children       *children);
 152 static void update_io_dialog            (Children       *children);
 153
 154 static void hide_io_dialog_cb           (GtkWidget      *widget,
 155                                          gpointer        data);
 156 static gint io_dialog_key_pressed_cb    (GtkWidget      *widget,
 157                                          GdkEventKey    *event,
 158                                          gpointer        data);
 159
 160 static void catch_output                (gpointer                data,
 161                                          gint                    source,
 162                                          GdkInputCondition       cond);
 163 static void catch_input                 (gpointer                data,
 164                                          gint                    source,
 165                                          GdkInputCondition       cond);
 166 static void catch_status                (gpointer                data,
 167                                          gint                    source,
 168                                          GdkInputCondition       cond);
 169
 170 static gchar *get_user_string           (const gchar    *action,
 171                                          ActionType      type);
 172
 173
 174 ActionType action_get_type(const gchar *action_str)
 175 {
 176         const gchar *p;
 177         ActionType action_type = ACTION_NONE;
 178
 179         g_return_val_if_fail(action_str,  ACTION_ERROR);
 180         g_return_val_if_fail(*action_str, ACTION_ERROR);
 181
 182         p = action_str;
 183
 184         if (p[0] == '|') {
 185                 action_type |= ACTION_PIPE_IN;
 186                 p++;
 187         } else if (p[0] == '>') {
 188                 action_type |= ACTION_USER_IN;
 189                 p++;
 190         } else if (p[0] == '*') {
 191                 action_type |= ACTION_USER_HIDDEN_IN;
 192                 p++;
 193         }
 194
 195         if (p[0] == '\0')
 196                 return ACTION_ERROR;
 197
 198         while (*p && action_type != ACTION_ERROR) {
 199                 if (p[0] == '%' && p[1]) {
 200                         switch (p[1]) {
 201                         case 'a':
 202                                 /* CLAWS: filtering action is a mutually exclusive
 203                                  * action. we can enable others if needed later. we
 204                                  * add ACTION_SINGLE | ACTION_MULTIPLE so it will
 205                                  * only be executed from the main window toolbar */
 206                                 if (p[2] == 's')  /* source messages */
 207                                         action_type = ACTION_FILTERING_ACTION
 208                                                     | ACTION_SINGLE
 209                                                     | ACTION_MULTIPLE;
 210                                 break;
 211                         case 'f':
 212                                 action_type |= ACTION_SINGLE;
 213                                 break;
 214                         case 'F':
 215                                 action_type |= ACTION_MULTIPLE;
 216                                 break;
 217                         case 'p':
 218                                 action_type |= ACTION_SINGLE;
 219                                 break;
 220                         case 's':
 221                                 action_type |= ACTION_SELECTION_STR;
 222                                 break;
 223                         case 'u':
 224                                 action_type |= ACTION_USER_STR;
 225                                 break;
 226                         case 'h':
 227                                 action_type |= ACTION_USER_HIDDEN_STR;
 228                                 break;
 229                         default:
 230                                 action_type = ACTION_ERROR;
 231                                 break;
 232                         }
 233                 } else if (p[0] == '|') {
 234                         if (p[1] == '\0')
 235                                 action_type |= ACTION_PIPE_OUT;
 236                 } else if (p[0] == '>') {
 237                         if (p[1] == '\0')
 238                                 action_type |= ACTION_INSERT;
 239                 } else if (p[0] == '&') {
 240                         if (p[1] == '\0')
 241                                 action_type |= ACTION_ASYNC;
 242                 }
 243                 p++;
 244         }
 245
 246         return action_type;
 247 }
 248
 249 static gchar *parse_action_cmd(gchar *action, MsgInfo *msginfo,
 250                                GSList *msg_list, MimeInfo *partinfo,
 251                                const gchar *user_str,
 252                                const gchar *user_hidden_str,
 253                                const gchar *sel_str)
 254 {
 255         GString *cmd;
 256         gchar *p;
 257         GSList *cur;
 258
 259         p = action;
 260
 261         if (p[0] == '|' || p[0] == '>' || p[0] == '*')
 262                 p++;
 263
 264         cmd = g_string_sized_new(strlen(action));
 265
 266         while (p[0] &&
 267                !((p[0] == '|' || p[0] == '>' || p[0] == '&') && !p[1])) {
 268                 if (p[0] == '%' && p[1]) {
 269                         switch (p[1]) {
 270                         case 'f':
 271                                 if (!parse_append_filename(cmd, msginfo)) {
 272                                         g_string_free(cmd, TRUE);
 273                                         return NULL;
 274                                 }
 275                                 p++;
 276                                 break;
 277                         case 'F':
 278                                 for (cur = msg_list; cur != NULL;
 279                                      cur = cur->next) {
 280                                         MsgInfo *msg = (MsgInfo *)cur->data;
 281
 282                                         if (!parse_append_filename(cmd, msg)) {
 283                                                 g_string_free(cmd, TRUE);
 284                                                 return NULL;
 285                                         }
 286                                         if (cur->next)
 287                                                 g_string_append_c(cmd, ' ');
 288                                 }
 289                                 p++;
 290                                 break;
 291                         case 'p':
 292                                 if (!parse_append_msgpart(cmd, msginfo,
 293                                                           partinfo)) {
 294                                         g_string_free(cmd, TRUE);
 295                                         return NULL;
 296                                 }
 297                                 p++;
 298                                 break;
 299                         case 's':
 300                                 if (sel_str)
 301                                         g_string_append(cmd, sel_str);
 302                                 p++;
 303                                 break;
 304                         case 'u':
 305                                 if (user_str)
 306                                         g_string_append(cmd, user_str);
 307                                 p++;
 308                                 break;
 309                         case 'h':
 310                                 if (user_hidden_str)
 311                                         g_string_append(cmd, user_hidden_str);
 312                                 p++;
 313                                 break;
 314                         default:
 315                                 g_string_append_c(cmd, p[0]);
 316                                 g_string_append_c(cmd, p[1]);
 317                                 p++;
 318                         }
 319                 } else {
 320                         g_string_append_c(cmd, p[0]);
 321                 }
 322                 p++;
 323         }
 324         if (cmd->len == 0) {
 325                 g_string_free(cmd, TRUE);
 326                 return NULL;
 327         }
 328
 329         p = cmd->str;
 330         g_string_free(cmd, FALSE);
 331         return p;
 332 }
 333
 334 static gboolean parse_append_filename(GString *cmd, MsgInfo *msginfo)
 335 {
 336         gchar *filename;
 337
 338         g_return_val_if_fail(msginfo, FALSE);
 339
 340         filename = procmsg_get_message_file(msginfo);
 341
 342         if (filename) {
 343                 g_string_append(cmd, filename);
 344                 g_free(filename);
 345         } else {
 346                 alertpanel_error(_("Could not get message file %d"),
 347                                  msginfo->msgnum);
 348                 return FALSE;
 349         }
 350
 351         return TRUE;
 352 }
 353
 354 static gboolean parse_append_msgpart(GString *cmd, MsgInfo *msginfo,
 355                                      MimeInfo *partinfo)
 356 {
 357         gboolean single_part = FALSE;
 358         gchar *filename;
 359         gchar *part_filename;
 360         gint ret;
 361
 362         if (!partinfo) {
 363                 partinfo = procmime_scan_message(msginfo);
 364                 if (!partinfo) {
 365                         alertpanel_error(_("Could not get message part."));
 366                         return FALSE;
 367                 }
 368
 369                 single_part = TRUE;
 370         }
 371
 372         filename = procmsg_get_message_file_path(msginfo);
 373         part_filename = procmime_get_tmp_file_name(partinfo);
 374
 375         ret = procmime_get_part(part_filename, partinfo);
 376
 377         if (single_part)
 378                 procmime_mimeinfo_free_all(partinfo);
 379         g_free(filename);
 380
 381         if (ret < 0) {
 382                 alertpanel_error(_("Can't get part of multipart message"));
 383                 g_free(part_filename);
 384                 return FALSE;
 385         }
 386
 387         g_string_append(cmd, part_filename);
 388
 389         g_free(part_filename);
 390
 391         return TRUE;
 392 }
 393
 394 void actions_execute(gpointer data,
 395                      guint action_nb,
 396                      GtkWidget *widget,
 397                      gint source)
 398 {
 399         if (source == TOOLBAR_MAIN)
 400                 mainwin_actions_execute_cb((MainWindow*)data, action_nb, widget);
 401         else if (source == TOOLBAR_COMPOSE)
 402                 compose_actions_execute_cb((Compose*)data, action_nb, widget);
 403         else if (source == TOOLBAR_MSGVIEW)
 404                 msgview_actions_execute_cb((MessageView*)data, action_nb, widget);
 405 }
 406
 407 void action_update_mainwin_menu(GtkItemFactory *ifactory,
 408                                 gchar *branch_path,
 409                                 MainWindow *mainwin)
 410 {
 411         action_update_menu(ifactory, branch_path,
 412                            mainwin_actions_execute_cb, mainwin);
 413 }
 414
 415 void action_update_msgview_menu(GtkItemFactory *ifactory,
 416                                 gchar *branch_path,
 417                                 MessageView *msgview)
 418 {
 419         action_update_menu(ifactory, branch_path,
 420                            msgview_actions_execute_cb, msgview);
 421 }
 422
 423 void action_update_compose_menu(GtkItemFactory *ifactory,
 424                                 gchar *branch_path,
 425                                 Compose *compose)
 426 {
 427         action_update_menu(ifactory, branch_path,
 428                            compose_actions_execute_cb, compose);
 429 }
 430
 431 static void action_update_menu(GtkItemFactory *ifactory,
 432                                gchar *branch_path,
 433                                gpointer callback, gpointer data)
 434 {
 435         GtkWidget *menuitem;
 436         gchar *menu_path;
 437         GSList *cur;
 438         gchar *action, *action_p;
 439         GList *amenu;
 440         GtkItemFactoryEntry ifentry = {NULL, NULL, NULL, 0, "<Branch>"};
 441
 442         ifentry.path = branch_path;
 443         menuitem = gtk_item_factory_get_widget(ifactory, branch_path);
 444         g_return_if_fail(menuitem != NULL);
 445
 446         amenu = GTK_MENU_SHELL(menuitem)->children;
 447         while (amenu != NULL) {
 448                 GList *alist = amenu->next;
 449                 gtk_widget_destroy(GTK_WIDGET(amenu->data));
 450                 amenu = alist;
 451         }
 452
 453         ifentry.accelerator     = NULL;
 454         ifentry.callback_action = 0;
 455         ifentry.callback        = callback;
 456         ifentry.item_type       = NULL;
 457
 458         for (cur = prefs_common.actions_list; cur; cur = cur->next) {
 459                 action   = g_strdup((gchar *)cur->data);
 460                 action_p = strstr(action, ": ");
 461                 if (action_p && action_p[2] &&
 462                     action_get_type(&action_p[2]) != ACTION_ERROR) {
 463                         action_p[0] = 0x00;
 464                         menu_path = g_strdup_printf("%s/%s", branch_path,
 465                                                     action);
 466                         ifentry.path = menu_path;
 467                         gtk_item_factory_create_item(ifactory, &ifentry, data,
 468                                                      1);
 469                         g_free(menu_path);
 470                 }
 471                 g_free(action);
 472                 ifentry.callback_action++;
 473         }
 474 }
 475
 476 static void compose_actions_execute_cb(Compose *compose, guint action_nb,
 477                                        GtkWidget *widget)
 478 {
 479         gchar *buf, *action;
 480         ActionType action_type;
 481
 482         g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));
 483
 484         buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
 485         g_return_if_fail(buf != NULL);
 486         action = strstr(buf, ": ");
 487         g_return_if_fail(action != NULL);
 488
 489         /* Point to the beginning of the command-line */
 490         action += 2;
 491
 492         action_type = action_get_type(action);
 493         if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE)) {
 494                 alertpanel_warning
 495                         (_("The selected action cannot be used in the compose window\n"
 496                            "because it contains %%f, %%F, %%as or %%p."));
 497                 return;
 498         }
 499
 500         execute_actions(action, NULL, compose->text, NULL, 0, NULL);
 501 }
 502
 503 static void mainwin_actions_execute_cb(MainWindow *mainwin, guint action_nb,
 504                                        GtkWidget *widget)
 505 {
 506         GSList *msg_list;
 507
 508         msg_list = summary_get_selected_msg_list(mainwin->summaryview);
 509         message_actions_execute(mainwin->messageview, action_nb, msg_list);
 510         g_slist_free(msg_list);
 511 }
 512
 513 static void msgview_actions_execute_cb(MessageView *msgview, guint action_nb,
 514                                        GtkWidget *widget)
 515 {
 516         GSList *msg_list = NULL;
 517
 518         if (msgview->msginfo)
 519                 msg_list = g_slist_append(msg_list, msgview->msginfo);
 520         message_actions_execute(msgview, action_nb, msg_list);
 521         g_slist_free(msg_list);
 522 }
 523
 524 static void message_actions_execute(MessageView *msgview, guint action_nb,
 525                                     GSList *msg_list)
 526 {
 527         TextView *textview;
 528         MimeInfo *partinfo;
 529         gchar *buf;
 530         gchar *action;
 531         GtkWidget *text = NULL;
 532         GdkFont *msgfont = NULL;
 533         guint body_pos = 0;
 534         ActionType action_type;
 535
 536         g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));
 537
 538         buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
 539
 540         g_return_if_fail(buf);
 541         g_return_if_fail(action = strstr(buf, ": "));
 542
 543         /* Point to the beginning of the command-line */
 544         action += 2;
 545
 546         textview = messageview_get_current_textview(msgview);
 547         if (textview) {
 548                 text     = textview->text;
 549                 msgfont  = textview->msgfont;
 550                 body_pos = textview->body_pos;
 551         }
 552         partinfo = messageview_get_selected_mime_part(msgview);
 553
 554         /* this command will alter the message text */
 555         action_type = action_get_type(action);
 556         if (action_type & (ACTION_PIPE_OUT | ACTION_INSERT))
 557                 msgview->filtered = TRUE;
 558
 559         if (action_type & ACTION_FILTERING_ACTION)
 560                 /* CLAWS: most of the above code is not necessary for applying
 561                  * filtering */
 562                 execute_filtering_actions(action, msg_list);
 563         else
 564                 execute_actions(action, msg_list, text, msgfont, body_pos, partinfo);
 565 }
 566
 567 static gboolean execute_filtering_actions(gchar *action, GSList *msglist)
 568 {
 569         GSList *action_list, *p;
 570         const gchar *sbegin, *send;
 571         gchar *action_string;
 572
 573         if (NULL == (sbegin = strstr2(action, "%as{")))
 574                 return FALSE;
 575         sbegin += sizeof "%as{" - 1;
 576         if (NULL == (send = strrchr(sbegin, '}')))
 577                 return FALSE;
 578         action_string = g_strndup(sbegin, send - sbegin);
 579
 580         action_list = matcher_parser_get_action_list(action_string);
 581         g_free(action_string);
 582         if (action_list == NULL) return FALSE;
 583
 584         /* apply actions on each message info */
 585         for (p = msglist; p && p->data; p = g_slist_next(p))
 586                 filteringaction_apply_action_list(action_list, (MsgInfo *) p->data);
 587
 588         for (p = action_list; p; p = g_slist_next(p))
 589                 if (p->data) filteringaction_free(p->data);
 590         g_slist_free(action_list);
 591         return TRUE;
 592 }
 593
 594 static gboolean execute_actions(gchar *action, GSList *msg_list,
 595                                 GtkWidget *text, GdkFont *msgfont,
 596                                 gint body_pos, MimeInfo *partinfo)
 597 {
 598         GSList *children_list = NULL;
 599         gint is_ok  = TRUE;
 600         gint msg_list_len;
 601         Children *children;
 602         ChildInfo *child_info;
 603         ActionType action_type;
 604         MsgInfo *msginfo;
 605         gchar *cmd;
 606         guint start = 0, end = 0;
 607         gchar *sel_str = NULL;
 608         gchar *msg_str = NULL;
 609         gchar *user_str = NULL;
 610         gchar *user_hidden_str = NULL;
 611
 612         g_return_val_if_fail(action && *action, FALSE);
 613
 614         action_type = action_get_type(action);
 615
 616         if (action_type == ACTION_ERROR)
 617                 return FALSE;         /* ERR: syntax error */
 618
 619         if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE) && !msg_list)
 620                 return FALSE;         /* ERR: file command without selection */
 621
 622         msg_list_len = g_slist_length(msg_list);
 623
 624         if (action_type & (ACTION_PIPE_OUT | ACTION_PIPE_IN | ACTION_INSERT)) {
 625                 if (msg_list_len > 1)
 626                         return FALSE; /* ERR: pipe + multiple selection */
 627                 if (!text)
 628                         return FALSE; /* ERR: pipe and no displayed text */
 629         }
 630
 631         if (action_type & ACTION_SELECTION_STR) {
 632                 if (!text)
 633                         return FALSE; /* ERR: selection string but no text */
 634         }
 635
 636         if (text) {
 637                 if (GTK_EDITABLE(text)->has_selection) {
 638                         start = GTK_EDITABLE(text)->selection_start_pos;
 639                         end   = GTK_EDITABLE(text)->selection_end_pos;
 640                         if (start > end) {
 641                                 guint tmp;
 642                                 tmp = start;
 643                                 start = end;
 644                                 end = tmp;
 645                         }
 646
 647                         if (start == end) {
 648                                 start = body_pos;
 649                                 end = gtk_stext_get_length(GTK_STEXT(text));
 650                                 msg_str = gtk_editable_get_chars
 651                                         (GTK_EDITABLE(text), start, end);
 652                         } else {
 653                                 sel_str = gtk_editable_get_chars
 654                                         (GTK_EDITABLE(text), start, end);
 655                                 msg_str = g_strdup(sel_str);
 656                         }
 657                 } else {
 658                         start = body_pos;
 659                         end = gtk_stext_get_length(GTK_STEXT(text));
 660                         msg_str = gtk_editable_get_chars(GTK_EDITABLE(text),
 661                                                          start, end);
 662                 }
 663         }
 664
 665         if (action_type & ACTION_USER_STR) {
 666                 if (!(user_str = get_user_string(action, ACTION_USER_STR))) {
 667                         g_free(msg_str);
 668                         g_free(sel_str);
 669                         return FALSE;
 670                 }
 671         }
 672
 673         if (action_type & ACTION_USER_HIDDEN_STR) {
 674                 if (!(user_hidden_str =
 675                         get_user_string(action, ACTION_USER_HIDDEN_STR))) {
 676                         g_free(msg_str);
 677                         g_free(sel_str);
 678                         g_free(user_str);
 679                         return FALSE;
 680                 }
 681         }
 682
 683         if (action_type & ACTION_PIPE_OUT) {
 684                 gtk_stext_freeze(GTK_STEXT(text));
 685                 gtk_stext_set_point(GTK_STEXT(text), start);
 686                 gtk_stext_forward_delete(GTK_STEXT(text), end - start);
 687                 gtk_stext_thaw(GTK_STEXT(text));
 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->msgfont     = msgfont;
 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         gint chld_in[2], chld_out[2], chld_err[2], chld_status[2];
 770         gchar *cmdline[4];
 771         pid_t pid, gch_pid;
 772         ChildInfo *child_info;
 773         gint sync;
 774
 775         sync = !(children->action_type & ACTION_ASYNC);
 776
 777         chld_in[0] = chld_in[1] = chld_out[0] = chld_out[1] = chld_err[0]
 778                 = chld_err[1] = chld_status[0] = chld_status[1] = -1;
 779
 780         if (sync) {
 781                 if (pipe(chld_status) || pipe(chld_in) || pipe(chld_out) ||
 782                     pipe(chld_err)) {
 783                         alertpanel_error(_("Command could not be started. "
 784                                            "Pipe creation failed.\n%s"),
 785                                         g_strerror(errno));
 786                         /* Closing fd = -1 fails silently */
 787                         close(chld_in[0]);
 788                         close(chld_in[1]);
 789                         close(chld_out[0]);
 790                         close(chld_out[1]);
 791                         close(chld_err[0]);
 792                         close(chld_err[1]);
 793                         close(chld_status[0]);
 794                         close(chld_status[1]);
 795                         return NULL; /* Pipe error */
 796                 }
 797         }
 798
 799         debug_print("Forking child and grandchild.\n");
 800
 801         pid = fork();
 802         if (pid == 0) { /* Child */
 803                 if (setpgid(0, 0))
 804                         perror("setpgid");
 805
 806                 close(ConnectionNumber(gdk_display));
 807
 808                 gch_pid = fork();
 809
 810                 if (gch_pid == 0) {
 811                         if (setpgid(0, getppid()))
 812                                 perror("setpgid");
 813
 814                         if (sync) {
 815                                 if (children->action_type &
 816                                     (ACTION_PIPE_IN |
 817                                      ACTION_USER_IN |
 818                                      ACTION_USER_HIDDEN_IN)) {
 819                                         close(fileno(stdin));
 820                                         dup  (chld_in[0]);
 821                                 }
 822                                 close(chld_in[0]);
 823                                 close(chld_in[1]);
 824
 825                                 close(fileno(stdout));
 826                                 dup  (chld_out[1]);
 827                                 close(chld_out[0]);
 828                                 close(chld_out[1]);
 829
 830                                 close(fileno(stderr));
 831                                 dup  (chld_err[1]);
 832                                 close(chld_err[0]);
 833                                 close(chld_err[1]);
 834                         }
 835
 836                         cmdline[0] = "sh";
 837                         cmdline[1] = "-c";
 838                         cmdline[2] = cmd;
 839                         cmdline[3] = 0;
 840                         execvp("/bin/sh", cmdline);
 841
 842                         perror("execvp");
 843                         _exit(1);
 844                 } else if (gch_pid < (pid_t) 0) { /* Fork error */
 845                         if (sync)
 846                                 write(chld_status[1], "1\n", 2);
 847                         perror("fork");
 848                         _exit(1);
 849                 } else { /* Child */
 850                         if (sync) {
 851                                 close(chld_in[0]);
 852                                 close(chld_in[1]);
 853                                 close(chld_out[0]);
 854                                 close(chld_out[1]);
 855                                 close(chld_err[0]);
 856                                 close(chld_err[1]);
 857                                 close(chld_status[0]);
 858
 859                                 debug_print("Child: Waiting for grandchild\n");
 860                                 waitpid(gch_pid, NULL, 0);
 861                                 debug_print("Child: grandchild ended\n");
 862                                 write(chld_status[1], "0\n", 2);
 863                                 close(chld_status[1]);
 864                         }
 865                         _exit(0);
 866                 }
 867         } else if (pid < 0) { /* Fork error */
 868                 alertpanel_error(_("Could not fork to execute the following "
 869                                    "command:\n%s\n%s"),
 870                                  cmd, g_strerror(errno));
 871                 return NULL;
 872         }
 873
 874         /* Parent */
 875
 876         if (!sync) {
 877                 waitpid(pid, NULL, 0);
 878                 return NULL;
 879         }
 880
 881         close(chld_in[0]);
 882         if (!(children->action_type &
 883               (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 884                 close(chld_in[1]);
 885         close(chld_out[1]);
 886         close(chld_err[1]);
 887         close(chld_status[1]);
 888
 889         child_info = g_new0(ChildInfo, 1);
 890
 891         child_info->children    = children;
 892
 893         child_info->pid         = pid;
 894         child_info->cmd         = g_strdup(cmd);
 895         child_info->new_out     = FALSE;
 896         child_info->output      = g_string_new(NULL);
 897         child_info->chld_in     =
 898                 (children->action_type &
 899                  (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN))
 900                         ? chld_in [1] : -1;
 901         child_info->chld_out    = chld_out[0];
 902         child_info->chld_err    = chld_err[0];
 903         child_info->chld_status = chld_status[0];
 904         child_info->tag_in      = -1;
 905         child_info->tag_out     = gdk_input_add(chld_out[0], GDK_INPUT_READ,
 906                                                 catch_output, child_info);
 907         child_info->tag_err     = gdk_input_add(chld_err[0], GDK_INPUT_READ,
 908                                                 catch_output, child_info);
 909
 910         if (!(children->action_type &
 911               (ACTION_PIPE_IN | ACTION_PIPE_OUT | ACTION_INSERT)))
 912                 return child_info;
 913
 914         if ((children->action_type & ACTION_PIPE_IN) && msg_str) {
 915                 write(chld_in[1], msg_str, strlen(msg_str));
 916                 if (!(children->action_type &
 917                       (ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 918                         close(chld_in[1]);
 919                 child_info->chld_in = -1; /* No more input */
 920         }
 921
 922         return child_info;
 923 }
 924
 925 static void kill_children_cb(GtkWidget *widget, gpointer data)
 926 {
 927         GSList *cur;
 928         Children *children = (Children *) data;
 929         ChildInfo *child_info;
 930
 931         for (cur = children->list; cur; cur = cur->next) {
 932                 child_info = (ChildInfo *)(cur->data);
 933                 debug_print("Killing child group id %d\n", child_info->pid);
 934                 if (child_info->pid && kill(-child_info->pid, SIGTERM) < 0)
 935                         perror("kill");
 936         }
 937 }
 938
 939 static gint wait_for_children(Children *children)
 940 {
 941         gboolean new_output;
 942         ChildInfo *child_info;
 943         GSList *cur;
 944         gint nb = children->nb;
 945
 946         children->nb = 0;
 947
 948         cur = children->list;
 949         new_output = FALSE;
 950         while (cur) {
 951                 child_info = (ChildInfo *)cur->data;
 952                 if (child_info->pid)
 953                         children->nb++;
 954                 new_output |= child_info->new_out;
 955                 cur = cur->next;
 956         }
 957
 958         children->output |= new_output;
 959
 960         if (new_output || (children->dialog && (nb != children->nb)))
 961                 update_io_dialog(children);
 962
 963         if (children->nb)
 964                 return FALSE;
 965
 966         if (!children->dialog) {
 967                 free_children(children);
 968         } else if (!children->output) {
 969                 gtk_widget_destroy(children->dialog);
 970         }
 971
 972         return FALSE;
 973 }
 974
 975 static void send_input(GtkWidget *w, gpointer data)
 976 {
 977         Children *children = (Children *) data;
 978         ChildInfo *child_info = (ChildInfo *) children->list->data;
 979
 980         child_info->tag_in = gdk_input_add(child_info->chld_in,
 981                                            GDK_INPUT_WRITE,
 982                                            catch_input, children);
 983         gtk_widget_set_sensitive(children->input_hbox, FALSE);
 984 }
 985
 986 static gint delete_io_dialog_cb(GtkWidget *w, GdkEvent *e, gpointer data)
 987 {
 988         hide_io_dialog_cb(w, data);
 989         return TRUE;
 990 }
 991
 992 static void hide_io_dialog_cb(GtkWidget *w, gpointer data)
 993 {
 994
 995         Children *children = (Children *)data;
 996
 997         if (!children->nb) {
 998                 gtk_signal_disconnect_by_data(GTK_OBJECT(children->dialog),
 999                                               children);
1000                 gtk_widget_destroy(children->dialog);
1001                 free_children(children);
1002         }
1003 }
1004
1005 static gint io_dialog_key_pressed_cb(GtkWidget *widget, GdkEventKey *event,
1006                                      gpointer data)
1007 {
1008         if (event && event->keyval == GDK_Escape)
1009                 hide_io_dialog_cb(widget, data);
1010         return TRUE;
1011 }
1012
1013 static void childinfo_close_pipes(ChildInfo *child_info)
1014 {
1015         /* stdout and stderr pipes are guaranteed to be removed by
1016          * their handler, but in case where we receive child exit notification
1017          * before grand-child's pipes closing signals, we check them and close
1018          * them if necessary
1019          */
1020         if (child_info->tag_in > 0)
1021                 gdk_input_remove(child_info->tag_in);
1022         if (child_info->tag_out > 0)
1023                 gdk_input_remove(child_info->tag_out);
1024         if (child_info->tag_err > 0)
1025                 gdk_input_remove(child_info->tag_err);
1026
1027         if (child_info->chld_in >= 0)
1028                 close(child_info->chld_in);
1029         if (child_info->chld_out >= 0)
1030                 close(child_info->chld_out);
1031         if (child_info->chld_err >= 0)
1032                 close(child_info->chld_err);
1033
1034         close(child_info->chld_status);
1035 }
1036
1037 static void free_children(Children *children)
1038 {
1039         ChildInfo *child_info;
1040
1041         debug_print("Freeing children data %p\n", children);
1042
1043         g_free(children->action);
1044         while (children->list != NULL) {
1045                 child_info = (ChildInfo *)children->list->data;
1046                 g_free(child_info->cmd);
1047                 g_string_free(child_info->output, TRUE);
1048                 children->list = g_slist_remove(children->list, child_info);
1049                 g_free(child_info);
1050         }
1051         g_free(children);
1052 }
1053
1054 static void update_io_dialog(Children *children)
1055 {
1056         GSList *cur;
1057
1058         debug_print("Updating actions input/output dialog.\n");
1059
1060         if (children->progress_bar) {
1061                 gtk_progress_configure(GTK_PROGRESS(children->progress_bar),
1062                                 children->initial_nb -children->nb,
1063                                 0.0, children->initial_nb);
1064         }
1065
1066         if (!children->nb) {
1067                 gtk_widget_set_sensitive(children->abort_btn, FALSE);
1068                 gtk_widget_set_sensitive(children->close_btn, TRUE);
1069                 if (children->input_hbox)
1070                         gtk_widget_set_sensitive(children->input_hbox, FALSE);
1071                 gtk_widget_grab_focus(children->close_btn);
1072                 gtk_signal_connect(GTK_OBJECT(children->dialog),
1073                                    "key_press_event",
1074                                    GTK_SIGNAL_FUNC(io_dialog_key_pressed_cb),
1075                                    children);
1076         }
1077
1078         if (children->output) {
1079                 GtkWidget *text = children->text;
1080                 gchar *caption;
1081                 ChildInfo *child_info;
1082                 GdkFont *font;
1083
1084                 font = gtk_object_get_data(GTK_OBJECT(children->dialog),
1085                                            "s_txtfont");
1086                 gtk_widget_show(children->scrolledwin);
1087                 gtk_text_freeze(GTK_TEXT(text));
1088                 gtk_text_set_point(GTK_TEXT(text), 0);
1089                 gtk_text_forward_delete(GTK_TEXT(text),
1090                                         gtk_text_get_length(GTK_TEXT(text)));
1091                 for (cur = children->list; cur; cur = cur->next) {
1092                         child_info = (ChildInfo *)cur->data;
1093                         if (child_info->pid)
1094                                 caption = g_strdup_printf
1095                                         (_("--- Running: %s\n"),
1096                                          child_info->cmd);
1097                         else
1098                                 caption = g_strdup_printf
1099                                         (_("--- Ended: %s\n"),
1100                                          child_info->cmd);
1101
1102                         gtk_text_insert(GTK_TEXT(text), font, NULL, NULL,
1103                                         caption, -1);
1104                         gtk_text_insert(GTK_TEXT(text), font, NULL, NULL,
1105                                         child_info->output->str, -1);
1106                         g_free(caption);
1107                         child_info->new_out = FALSE;
1108                 }
1109                 gtk_text_thaw(GTK_TEXT(text));
1110         }
1111 }
1112
1113 static void create_io_dialog(Children *children)
1114 {
1115         GtkWidget *dialog;
1116         GtkWidget *vbox;
1117         GtkWidget *entry = NULL;
1118         GtkWidget *input_hbox = NULL;
1119         GtkWidget *send_button;
1120         GtkWidget *label;
1121         GtkWidget *text;
1122         GtkWidget *scrolledwin;
1123         GtkWidget *hbox;
1124         GtkWidget *progress_bar = NULL;
1125         GtkWidget *abort_button;
1126         GtkWidget *close_button;
1127         GdkFont   *output_font;
1128
1129         debug_print("Creating action IO dialog\n");
1130
1131         dialog = gtk_dialog_new();
1132         gtk_container_set_border_width
1133                 (GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 5);
1134         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
1135         gtk_window_set_title(GTK_WINDOW(dialog), _("Action's input/output"));
1136         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
1137         manage_window_set_transient(GTK_WINDOW(dialog));
1138         gtk_signal_connect(GTK_OBJECT(dialog), "delete_event",
1139                         GTK_SIGNAL_FUNC(delete_io_dialog_cb), children);
1140         gtk_signal_connect(GTK_OBJECT(dialog), "destroy",
1141                         GTK_SIGNAL_FUNC(hide_io_dialog_cb),
1142                         children);
1143
1144         vbox = gtk_vbox_new(FALSE, 8);
1145         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), vbox);
1146         gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
1147         gtk_widget_show(vbox);
1148
1149         label = gtk_label_new(children->action);
1150         gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
1151         gtk_widget_show(label);
1152
1153         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
1154         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
1155                                        GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
1156         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
1157         gtk_widget_set_usize(scrolledwin, 480, 200);
1158         gtk_widget_hide(scrolledwin);
1159
1160         text = gtk_text_new(gtk_scrolled_window_get_hadjustment
1161                             (GTK_SCROLLED_WINDOW(scrolledwin)),
1162                             gtk_scrolled_window_get_vadjustment
1163                             (GTK_SCROLLED_WINDOW(scrolledwin)));
1164         gtk_text_set_editable(GTK_TEXT(text), FALSE);
1165         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
1166         gtk_widget_show(text);
1167
1168         if (children->open_in) {
1169                 input_hbox = gtk_hbox_new(FALSE, 8);
1170                 gtk_widget_show(input_hbox);
1171
1172                 entry = gtk_entry_new();
1173                 gtk_widget_set_usize(entry, 320, -1);
1174                 gtk_signal_connect(GTK_OBJECT(entry), "activate",
1175                                    GTK_SIGNAL_FUNC(send_input), children);
1176                 gtk_box_pack_start(GTK_BOX(input_hbox), entry, TRUE, TRUE, 0);
1177                 if (children->action_type & ACTION_USER_HIDDEN_IN)
1178                         gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE);
1179                 gtk_widget_show(entry);
1180
1181                 send_button = gtk_button_new_with_label(_(" Send "));
1182                 gtk_signal_connect(GTK_OBJECT(send_button), "clicked",
1183                                    GTK_SIGNAL_FUNC(send_input), children);
1184                 gtk_box_pack_start(GTK_BOX(input_hbox), send_button, FALSE,
1185                                    FALSE, 0);
1186                 gtk_widget_show(send_button);
1187
1188                 gtk_box_pack_start(GTK_BOX(vbox), input_hbox, FALSE, FALSE, 0);
1189                 gtk_widget_grab_focus(entry);
1190         }
1191
1192         if (children->initial_nb > 1) {
1193                 progress_bar = gtk_progress_bar_new();
1194                 gtk_progress_bar_set_bar_style(GTK_PROGRESS_BAR(progress_bar),
1195                                 GTK_PROGRESS_CONTINUOUS);
1196                 gtk_progress_bar_set_orientation(GTK_PROGRESS_BAR(progress_bar),
1197                                 GTK_PROGRESS_LEFT_TO_RIGHT);
1198                 gtk_progress_set_activity_mode(GTK_PROGRESS(progress_bar),
1199                                 FALSE);
1200                 gtk_progress_set_format_string(GTK_PROGRESS(progress_bar),
1201                                 _("Completed %v/%u"));
1202                 gtk_progress_set_show_text(GTK_PROGRESS(progress_bar), TRUE);
1203                 gtk_progress_configure(GTK_PROGRESS(progress_bar),
1204                                 children->initial_nb -children->nb,
1205                                 0.0, children->initial_nb);
1206
1207                 gtk_box_pack_start(GTK_BOX(vbox), progress_bar, FALSE, FALSE, 0);
1208                 gtk_widget_show(progress_bar);
1209         }
1210
1211         gtkut_button_set_create(&hbox, &abort_button, _("Abort"),
1212                                 &close_button, _("Close"), NULL, NULL);
1213         gtk_signal_connect(GTK_OBJECT(abort_button), "clicked",
1214                         GTK_SIGNAL_FUNC(kill_children_cb), children);
1215         gtk_signal_connect(GTK_OBJECT(close_button), "clicked",
1216                         GTK_SIGNAL_FUNC(hide_io_dialog_cb), children);
1217         gtk_widget_show(hbox);
1218
1219         if (children->nb)
1220                 gtk_widget_set_sensitive(close_button, FALSE);
1221
1222         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), hbox);
1223
1224         children->dialog       = dialog;
1225         children->scrolledwin  = scrolledwin;
1226         children->text         = text;
1227         children->input_hbox   = children->open_in ? input_hbox : NULL;
1228         children->input_entry  = children->open_in ? entry : NULL;
1229         children->progress_bar = progress_bar;
1230         children->abort_btn    = abort_button;
1231         children->close_btn    = close_button;
1232
1233         output_font = gtkut_font_load_from_fontset(prefs_common.textfont);
1234         gtk_object_set_data_full(GTK_OBJECT(dialog), "s_txtfont",
1235                                  output_font,
1236                                  (GtkDestroyNotify)gdk_font_unref);
1237         gtk_widget_show(dialog);
1238 }
1239
1240 static void catch_status(gpointer data, gint source, GdkInputCondition cond)
1241 {
1242         ChildInfo *child_info = (ChildInfo *)data;
1243         gchar buf;
1244         gint c;
1245
1246         gdk_input_remove(child_info->tag_status);
1247
1248         c = read(source, &buf, 1);
1249         debug_print("Child returned %c\n", buf);
1250
1251         waitpid(-child_info->pid, NULL, 0);
1252         childinfo_close_pipes(child_info);
1253         child_info->pid = 0;
1254
1255         wait_for_children(child_info->children);
1256 }
1257
1258 static void catch_input(gpointer data, gint source, GdkInputCondition cond)
1259 {
1260         Children *children = (Children *)data;
1261         ChildInfo *child_info = (ChildInfo *)children->list->data;
1262         gchar *input;
1263         gint c, count, len;
1264
1265         debug_print("Sending input to grand child.\n");
1266         if (!(cond && GDK_INPUT_WRITE))
1267                 return;
1268
1269         gdk_input_remove(child_info->tag_in);
1270         child_info->tag_in = -1;
1271
1272         input = gtk_editable_get_chars(GTK_EDITABLE(children->input_entry),
1273                                        0, -1);
1274         len = strlen(input);
1275         count = 0;
1276
1277         do {
1278                 c = write(child_info->chld_in, input + count, len - count);
1279                 if (c >= 0)
1280                         count += c;
1281         } while (c >= 0 && count < len);
1282
1283         if (c >= 0)
1284                 write(child_info->chld_in, "\n", 2);
1285
1286         g_free(input);
1287
1288         gtk_entry_set_text(GTK_ENTRY(children->input_entry), "");
1289         gtk_widget_set_sensitive(children->input_hbox, TRUE);
1290         close(child_info->chld_in);
1291         child_info->chld_in = -1;
1292         debug_print("Input to grand child sent.\n");
1293 }
1294
1295 static void catch_output(gpointer data, gint source, GdkInputCondition cond)
1296 {
1297         ChildInfo *child_info = (ChildInfo *)data;
1298         gint c, i;
1299         gchar buf[BUFFSIZE];
1300
1301         debug_print("Catching grand child's output.\n");
1302         if (child_info->children->action_type &
1303             (ACTION_PIPE_OUT | ACTION_INSERT)
1304             && source == child_info->chld_out) {
1305                 gboolean is_selection = FALSE;
1306                 GtkWidget *text = child_info->children->msg_text;
1307
1308                 if (GTK_EDITABLE(text)->has_selection)
1309                         is_selection = TRUE;
1310                 gtk_stext_freeze(GTK_STEXT(text));
1311                 while (TRUE) {
1312                         c = read(source, buf, sizeof(buf) - 1);
1313                         if (c == 0)
1314                                 break;
1315                         gtk_stext_insert(GTK_STEXT(text),
1316                                          child_info->children->msgfont,
1317                                          NULL, NULL, buf, c);
1318                 }
1319                 if (is_selection) {
1320                         /* Using the select_region draws things. Should not.
1321                          * so we just change selection position and
1322                          * defere drawing when thawing. Hack?
1323                          */
1324                         GTK_EDITABLE(text)->selection_end_pos =
1325                                         gtk_stext_get_point(GTK_STEXT(text));
1326                 }
1327                 gtk_stext_thaw(GTK_STEXT(text));
1328         } else {
1329                 c = read(source, buf, sizeof(buf) - 1);
1330                 for (i = 0; i < c; i++)
1331                         g_string_append_c(child_info->output, buf[i]);
1332                 if (c > 0)
1333                         child_info->new_out = TRUE;
1334         }
1335         if (c == 0) {
1336                 if (source == child_info->chld_out) {
1337                         gdk_input_remove(child_info->tag_out);
1338                         child_info->tag_out = -1;
1339                         close(child_info->chld_out);
1340                         child_info->chld_out = -1;
1341                 } else {
1342                         gdk_input_remove(child_info->tag_err);
1343                         child_info->tag_err = -1;
1344                         close(child_info->chld_err);
1345                         child_info->chld_err = -1;
1346                 }
1347         }
1348
1349         wait_for_children(child_info->children);
1350 }
1351
1352 static gchar *get_user_string(const gchar *action, ActionType type)
1353 {
1354         gchar *message;
1355         gchar *user_str = NULL;
1356
1357         switch (type) {
1358         case ACTION_USER_HIDDEN_STR:
1359                 message = g_strdup_printf
1360                         (_("Enter the argument for the following action:\n"
1361                            "(`%%h' will be replaced with the argument)\n"
1362                            "  %s"),
1363                          action);
1364                 user_str = input_dialog_with_invisible
1365                         (_("Action's hidden user argument"), message, NULL);
1366                 break;
1367         case ACTION_USER_STR:
1368                 message = g_strdup_printf
1369                         (_("Enter the argument for the following action:\n"
1370                            "(`%%u' will be replaced with the argument)\n"
1371                            "  %s"),
1372                          action);
1373                 user_str = input_dialog
1374                         (_("Action's user argument"), message, NULL);
1375                 break;
1376         default:
1377                 g_warning("Unsupported action type %d", type);
1378         }
1379
1380         return user_str;
1381 }