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, MainWindow *mainwin)
 408 {
 409         action_update_menu(ifactory, "/Tools/Actions",
 410                            mainwin_actions_execute_cb, mainwin);
 411 }
 412
 413 void action_update_msgview_menu(GtkItemFactory *ifactory, MessageView *msgview)
 414 {
 415         action_update_menu(ifactory, "/Tools/Actions",
 416                            msgview_actions_execute_cb, msgview);
 417 }
 418
 419 void action_update_compose_menu(GtkItemFactory *ifactory, Compose *compose)
 420 {
 421         action_update_menu(ifactory, "/Tools/Actions",
 422                            compose_actions_execute_cb, compose);
 423 }
 424
 425 static void action_update_menu(GtkItemFactory *ifactory, gchar *branch_path,
 426                                gpointer callback, gpointer data)
 427 {
 428         GtkWidget *menuitem;
 429         gchar *menu_path;
 430         GSList *cur;
 431         gchar *action, *action_p;
 432         GList *amenu;
 433         GtkItemFactoryEntry ifentry = {NULL, NULL, NULL, 0, "<Branch>"};
 434
 435         ifentry.path = branch_path;
 436         menuitem = gtk_item_factory_get_widget(ifactory, branch_path);
 437         g_return_if_fail(menuitem != NULL);
 438
 439         amenu = GTK_MENU_SHELL(menuitem)->children;
 440         while (amenu != NULL) {
 441                 GList *alist = amenu->next;
 442                 gtk_widget_destroy(GTK_WIDGET(amenu->data));
 443                 amenu = alist;
 444         }
 445
 446         ifentry.accelerator     = NULL;
 447         ifentry.callback_action = 0;
 448         ifentry.callback        = callback;
 449         ifentry.item_type       = NULL;
 450
 451         for (cur = prefs_common.actions_list; cur; cur = cur->next) {
 452                 action   = g_strdup((gchar *)cur->data);
 453                 action_p = strstr(action, ": ");
 454                 if (action_p && action_p[2] &&
 455                     action_get_type(&action_p[2]) != ACTION_ERROR) {
 456                         action_p[0] = 0x00;
 457                         menu_path = g_strdup_printf("%s/%s", branch_path,
 458                                                     action);
 459                         ifentry.path = menu_path;
 460                         gtk_item_factory_create_item(ifactory, &ifentry, data,
 461                                                      1);
 462                         g_free(menu_path);
 463                 }
 464                 g_free(action);
 465                 ifentry.callback_action++;
 466         }
 467 }
 468
 469 static void compose_actions_execute_cb(Compose *compose, guint action_nb,
 470                                        GtkWidget *widget)
 471 {
 472         gchar *buf, *action;
 473         ActionType action_type;
 474
 475         g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));
 476
 477         buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
 478         g_return_if_fail(buf != NULL);
 479         action = strstr(buf, ": ");
 480         g_return_if_fail(action != NULL);
 481
 482         /* Point to the beginning of the command-line */
 483         action += 2;
 484
 485         action_type = action_get_type(action);
 486         if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE)) {
 487                 alertpanel_warning
 488                         (_("The selected action cannot be used in the compose window\n"
 489                            "because it contains %%f, %%F, %%as or %%p."));
 490                 return;
 491         }
 492
 493         execute_actions(action, NULL, compose->text, NULL, 0, NULL);
 494 }
 495
 496 static void mainwin_actions_execute_cb(MainWindow *mainwin, guint action_nb,
 497                                        GtkWidget *widget)
 498 {
 499         GSList *msg_list;
 500
 501         msg_list = summary_get_selected_msg_list(mainwin->summaryview);
 502         message_actions_execute(mainwin->messageview, action_nb, msg_list);
 503         g_slist_free(msg_list);
 504 }
 505
 506 static void msgview_actions_execute_cb(MessageView *msgview, guint action_nb,
 507                                        GtkWidget *widget)
 508 {
 509         GSList *msg_list = NULL;
 510
 511         if (msgview->msginfo)
 512                 msg_list = g_slist_append(msg_list, msgview->msginfo);
 513         message_actions_execute(msgview, action_nb, msg_list);
 514         g_slist_free(msg_list);
 515 }
 516
 517 static void message_actions_execute(MessageView *msgview, guint action_nb,
 518                                     GSList *msg_list)
 519 {
 520         TextView *textview;
 521         MimeInfo *partinfo;
 522         gchar *buf;
 523         gchar *action;
 524         GtkWidget *text = NULL;
 525         GdkFont *msgfont = NULL;
 526         guint body_pos = 0;
 527         ActionType action_type;
 528
 529         g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));
 530
 531         buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
 532
 533         g_return_if_fail(buf);
 534         g_return_if_fail(action = strstr(buf, ": "));
 535
 536         /* Point to the beginning of the command-line */
 537         action += 2;
 538
 539         textview = messageview_get_current_textview(msgview);
 540         if (textview) {
 541                 text     = textview->text;
 542                 msgfont  = textview->msgfont;
 543                 body_pos = textview->body_pos;
 544         }
 545         partinfo = messageview_get_selected_mime_part(msgview);
 546
 547         /* this command will alter the message text */
 548         action_type = action_get_type(action);
 549         if (action_type & (ACTION_PIPE_OUT | ACTION_INSERT))
 550                 msgview->filtered = TRUE;
 551
 552         if (action_type & ACTION_FILTERING_ACTION)
 553                 /* CLAWS: most of the above code is not necessary for applying
 554                  * filtering */
 555                 execute_filtering_actions(action, msg_list);
 556         else
 557                 execute_actions(action, msg_list, text, msgfont, body_pos, partinfo);
 558 }
 559
 560 static gboolean execute_filtering_actions(gchar *action, GSList *msglist)
 561 {
 562         GSList *action_list, *p;
 563         const gchar *sbegin, *send;
 564         gchar *action_string;
 565
 566         if (NULL == (sbegin = strstr2(action, "%as{")))
 567                 return FALSE;
 568         sbegin += sizeof "%as{" - 1;
 569         if (NULL == (send = strrchr(sbegin, '}')))
 570                 return FALSE;
 571         action_string = g_strndup(sbegin, send - sbegin);
 572
 573         action_list = matcher_parser_get_action_list(action_string);
 574         g_free(action_string);
 575         if (action_list == NULL) return FALSE;
 576
 577         /* apply actions on each message info */
 578         for (p = msglist; p && p->data; p = g_slist_next(p))
 579                 filteringaction_apply_action_list(action_list, (MsgInfo *) p->data);
 580
 581         for (p = action_list; p; p = g_slist_next(p))
 582                 if (p->data) filteringaction_free(p->data);
 583         g_slist_free(action_list);
 584         return TRUE;
 585 }
 586
 587 static gboolean execute_actions(gchar *action, GSList *msg_list,
 588                                 GtkWidget *text, GdkFont *msgfont,
 589                                 gint body_pos, MimeInfo *partinfo)
 590 {
 591         GSList *children_list = NULL;
 592         gint is_ok  = TRUE;
 593         gint msg_list_len;
 594         Children *children;
 595         ChildInfo *child_info;
 596         ActionType action_type;
 597         MsgInfo *msginfo;
 598         gchar *cmd;
 599         guint start = 0, end = 0;
 600         gchar *sel_str = NULL;
 601         gchar *msg_str = NULL;
 602         gchar *user_str = NULL;
 603         gchar *user_hidden_str = NULL;
 604
 605         g_return_val_if_fail(action && *action, FALSE);
 606
 607         action_type = action_get_type(action);
 608
 609         if (action_type == ACTION_ERROR)
 610                 return FALSE;         /* ERR: syntax error */
 611
 612         if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE) && !msg_list)
 613                 return FALSE;         /* ERR: file command without selection */
 614
 615         msg_list_len = g_slist_length(msg_list);
 616
 617         if (action_type & (ACTION_PIPE_OUT | ACTION_PIPE_IN | ACTION_INSERT)) {
 618                 if (msg_list_len > 1)
 619                         return FALSE; /* ERR: pipe + multiple selection */
 620                 if (!text)
 621                         return FALSE; /* ERR: pipe and no displayed text */
 622         }
 623
 624         if (action_type & ACTION_SELECTION_STR) {
 625                 if (!text)
 626                         return FALSE; /* ERR: selection string but no text */
 627         }
 628
 629         if (text) {
 630                 if (GTK_EDITABLE(text)->has_selection) {
 631                         start = GTK_EDITABLE(text)->selection_start_pos;
 632                         end   = GTK_EDITABLE(text)->selection_end_pos;
 633                         if (start > end) {
 634                                 guint tmp;
 635                                 tmp = start;
 636                                 start = end;
 637                                 end = tmp;
 638                         }
 639
 640                         if (start == end) {
 641                                 start = body_pos;
 642                                 end = gtk_stext_get_length(GTK_STEXT(text));
 643                                 msg_str = gtk_editable_get_chars
 644                                         (GTK_EDITABLE(text), start, end);
 645                         } else {
 646                                 sel_str = gtk_editable_get_chars
 647                                         (GTK_EDITABLE(text), start, end);
 648                                 msg_str = g_strdup(sel_str);
 649                         }
 650                 } else {
 651                         start = body_pos;
 652                         end = gtk_stext_get_length(GTK_STEXT(text));
 653                         msg_str = gtk_editable_get_chars(GTK_EDITABLE(text),
 654                                                          start, end);
 655                 }
 656         }
 657
 658         if (action_type & ACTION_USER_STR) {
 659                 if (!(user_str = get_user_string(action, ACTION_USER_STR))) {
 660                         g_free(msg_str);
 661                         g_free(sel_str);
 662                         return FALSE;
 663                 }
 664         }
 665
 666         if (action_type & ACTION_USER_HIDDEN_STR) {
 667                 if (!(user_hidden_str =
 668                         get_user_string(action, ACTION_USER_HIDDEN_STR))) {
 669                         g_free(msg_str);
 670                         g_free(sel_str);
 671                         g_free(user_str);
 672                         return FALSE;
 673                 }
 674         }
 675
 676         if (action_type & ACTION_PIPE_OUT) {
 677                 gtk_stext_freeze(GTK_STEXT(text));
 678                 gtk_stext_set_point(GTK_STEXT(text), start);
 679                 gtk_stext_forward_delete(GTK_STEXT(text), end - start);
 680                 gtk_stext_thaw(GTK_STEXT(text));
 681         }
 682
 683         children = g_new0(Children, 1);
 684
 685         children->action      = g_strdup(action);
 686         children->action_type = action_type;
 687         children->msg_text    = text;
 688         children->msgfont     = msgfont;
 689
 690         if ((action_type & (ACTION_USER_IN | ACTION_USER_HIDDEN_IN)) &&
 691             ((action_type & ACTION_SINGLE) == 0 || msg_list_len == 1))
 692                 children->open_in = 1;
 693
 694         if (action_type & ACTION_SINGLE) {
 695                 GSList *cur;
 696
 697                 for (cur = msg_list; cur && is_ok == TRUE; cur = cur->next) {
 698                         msginfo = (MsgInfo *)cur->data;
 699                         if (!msginfo) {
 700                                 is_ok  = FALSE; /* ERR: msginfo missing */
 701                                 break;
 702                         }
 703                         cmd = parse_action_cmd(action, msginfo, msg_list,
 704                                                partinfo, user_str,
 705                                                user_hidden_str, sel_str);
 706                         if (!cmd) {
 707                                 debug_print("Action command error\n");
 708                                 is_ok  = FALSE; /* ERR: incorrect command */
 709                                 break;
 710                         }
 711                         if ((child_info = fork_child(cmd, msg_str, children))) {
 712                                 children_list = g_slist_append(children_list,
 713                                                                child_info);
 714                         }
 715                         g_free(cmd);
 716                 }
 717         } else {
 718                 cmd = parse_action_cmd(action, NULL, msg_list, partinfo,
 719                                        user_str, user_hidden_str, sel_str);
 720                 if (cmd) {
 721                         if ((child_info = fork_child(cmd, msg_str, children))) {
 722                                 children_list = g_slist_append(children_list,
 723                                                                child_info);
 724                         }
 725                         g_free(cmd);
 726                 } else
 727                         is_ok  = FALSE;         /* ERR: incorrect command */
 728         }
 729
 730         g_free(msg_str);
 731         g_free(sel_str);
 732         g_free(user_str);
 733         g_free(user_hidden_str);
 734
 735         if (!children_list) {
 736                  /* If not waiting for children, return */
 737                 free_children(children);
 738         } else {
 739                 GSList *cur;
 740
 741                 children->list        = children_list;
 742                 children->nb          = g_slist_length(children_list);
 743                 children->initial_nb  = children->nb;
 744
 745                 for (cur = children_list; cur; cur = cur->next) {
 746                         child_info = (ChildInfo *) cur->data;
 747                         child_info->tag_status =
 748                                 gdk_input_add(child_info->chld_status,
 749                                               GDK_INPUT_READ,
 750                                               catch_status, child_info);
 751                 }
 752
 753                 create_io_dialog(children);
 754         }
 755
 756         return is_ok;
 757 }
 758
 759 static ChildInfo *fork_child(gchar *cmd, const gchar *msg_str,
 760                              Children *children)
 761 {
 762         gint chld_in[2], chld_out[2], chld_err[2], chld_status[2];
 763         gchar *cmdline[4];
 764         pid_t pid, gch_pid;
 765         ChildInfo *child_info;
 766         gint sync;
 767
 768         sync = !(children->action_type & ACTION_ASYNC);
 769
 770         chld_in[0] = chld_in[1] = chld_out[0] = chld_out[1] = chld_err[0]
 771                 = chld_err[1] = chld_status[0] = chld_status[1] = -1;
 772
 773         if (sync) {
 774                 if (pipe(chld_status) || pipe(chld_in) || pipe(chld_out) ||
 775                     pipe(chld_err)) {
 776                         alertpanel_error(_("Command could not be started. "
 777                                            "Pipe creation failed.\n%s"),
 778                                         g_strerror(errno));
 779                         /* Closing fd = -1 fails silently */
 780                         close(chld_in[0]);
 781                         close(chld_in[1]);
 782                         close(chld_out[0]);
 783                         close(chld_out[1]);
 784                         close(chld_err[0]);
 785                         close(chld_err[1]);
 786                         close(chld_status[0]);
 787                         close(chld_status[1]);
 788                         return NULL; /* Pipe error */
 789                 }
 790         }
 791
 792         debug_print("Forking child and grandchild.\n");
 793
 794         pid = fork();
 795         if (pid == 0) { /* Child */
 796                 if (setpgid(0, 0))
 797                         perror("setpgid");
 798
 799                 close(ConnectionNumber(gdk_display));
 800
 801                 gch_pid = fork();
 802
 803                 if (gch_pid == 0) {
 804                         if (setpgid(0, getppid()))
 805                                 perror("setpgid");
 806
 807                         if (sync) {
 808                                 if (children->action_type &
 809                                     (ACTION_PIPE_IN |
 810                                      ACTION_USER_IN |
 811                                      ACTION_USER_HIDDEN_IN)) {
 812                                         close(fileno(stdin));
 813                                         dup  (chld_in[0]);
 814                                 }
 815                                 close(chld_in[0]);
 816                                 close(chld_in[1]);
 817
 818                                 close(fileno(stdout));
 819                                 dup  (chld_out[1]);
 820                                 close(chld_out[0]);
 821                                 close(chld_out[1]);
 822
 823                                 close(fileno(stderr));
 824                                 dup  (chld_err[1]);
 825                                 close(chld_err[0]);
 826                                 close(chld_err[1]);
 827                         }
 828
 829                         cmdline[0] = "sh";
 830                         cmdline[1] = "-c";
 831                         cmdline[2] = cmd;
 832                         cmdline[3] = 0;
 833                         execvp("/bin/sh", cmdline);
 834
 835                         perror("execvp");
 836                         _exit(1);
 837                 } else if (gch_pid < (pid_t) 0) { /* Fork error */
 838                         if (sync)
 839                                 write(chld_status[1], "1\n", 2);
 840                         perror("fork");
 841                         _exit(1);
 842                 } else { /* Child */
 843                         if (sync) {
 844                                 close(chld_in[0]);
 845                                 close(chld_in[1]);
 846                                 close(chld_out[0]);
 847                                 close(chld_out[1]);
 848                                 close(chld_err[0]);
 849                                 close(chld_err[1]);
 850                                 close(chld_status[0]);
 851
 852                                 debug_print("Child: Waiting for grandchild\n");
 853                                 waitpid(gch_pid, NULL, 0);
 854                                 debug_print("Child: grandchild ended\n");
 855                                 write(chld_status[1], "0\n", 2);
 856                                 close(chld_status[1]);
 857                         }
 858                         _exit(0);
 859                 }
 860         } else if (pid < 0) { /* Fork error */
 861                 alertpanel_error(_("Could not fork to execute the following "
 862                                    "command:\n%s\n%s"),
 863                                  cmd, g_strerror(errno));
 864                 return NULL;
 865         }
 866
 867         /* Parent */
 868
 869         if (!sync) {
 870                 waitpid(pid, NULL, 0);
 871                 return NULL;
 872         }
 873
 874         close(chld_in[0]);
 875         if (!(children->action_type &
 876               (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 877                 close(chld_in[1]);
 878         close(chld_out[1]);
 879         close(chld_err[1]);
 880         close(chld_status[1]);
 881
 882         child_info = g_new0(ChildInfo, 1);
 883
 884         child_info->children    = children;
 885
 886         child_info->pid         = pid;
 887         child_info->cmd         = g_strdup(cmd);
 888         child_info->new_out     = FALSE;
 889         child_info->output      = g_string_new(NULL);
 890         child_info->chld_in     =
 891                 (children->action_type &
 892                  (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN))
 893                         ? chld_in [1] : -1;
 894         child_info->chld_out    = chld_out[0];
 895         child_info->chld_err    = chld_err[0];
 896         child_info->chld_status = chld_status[0];
 897         child_info->tag_in      = -1;
 898         child_info->tag_out     = gdk_input_add(chld_out[0], GDK_INPUT_READ,
 899                                                 catch_output, child_info);
 900         child_info->tag_err     = gdk_input_add(chld_err[0], GDK_INPUT_READ,
 901                                                 catch_output, child_info);
 902
 903         if (!(children->action_type &
 904               (ACTION_PIPE_IN | ACTION_PIPE_OUT | ACTION_INSERT)))
 905                 return child_info;
 906
 907         if ((children->action_type & ACTION_PIPE_IN) && msg_str) {
 908                 write(chld_in[1], msg_str, strlen(msg_str));
 909                 if (!(children->action_type &
 910                       (ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 911                         close(chld_in[1]);
 912                 child_info->chld_in = -1; /* No more input */
 913         }
 914
 915         return child_info;
 916 }
 917
 918 static void kill_children_cb(GtkWidget *widget, gpointer data)
 919 {
 920         GSList *cur;
 921         Children *children = (Children *) data;
 922         ChildInfo *child_info;
 923
 924         for (cur = children->list; cur; cur = cur->next) {
 925                 child_info = (ChildInfo *)(cur->data);
 926                 debug_print("Killing child group id %d\n", child_info->pid);
 927                 if (child_info->pid && kill(-child_info->pid, SIGTERM) < 0)
 928                         perror("kill");
 929         }
 930 }
 931
 932 static gint wait_for_children(Children *children)
 933 {
 934         gboolean new_output;
 935         ChildInfo *child_info;
 936         GSList *cur;
 937         gint nb = children->nb;
 938
 939         children->nb = 0;
 940
 941         cur = children->list;
 942         new_output = FALSE;
 943         while (cur) {
 944                 child_info = (ChildInfo *)cur->data;
 945                 if (child_info->pid)
 946                         children->nb++;
 947                 new_output |= child_info->new_out;
 948                 cur = cur->next;
 949         }
 950
 951         children->output |= new_output;
 952
 953         if (new_output || (children->dialog && (nb != children->nb)))
 954                 update_io_dialog(children);
 955
 956         if (children->nb)
 957                 return FALSE;
 958
 959         if (!children->dialog) {
 960                 free_children(children);
 961         } else if (!children->output) {
 962                 gtk_widget_destroy(children->dialog);
 963         }
 964
 965         return FALSE;
 966 }
 967
 968 static void send_input(GtkWidget *w, gpointer data)
 969 {
 970         Children *children = (Children *) data;
 971         ChildInfo *child_info = (ChildInfo *) children->list->data;
 972
 973         child_info->tag_in = gdk_input_add(child_info->chld_in,
 974                                            GDK_INPUT_WRITE,
 975                                            catch_input, children);
 976         gtk_widget_set_sensitive(children->input_hbox, FALSE);
 977 }
 978
 979 static gint delete_io_dialog_cb(GtkWidget *w, GdkEvent *e, gpointer data)
 980 {
 981         hide_io_dialog_cb(w, data);
 982         return TRUE;
 983 }
 984
 985 static void hide_io_dialog_cb(GtkWidget *w, gpointer data)
 986 {
 987
 988         Children *children = (Children *)data;
 989
 990         if (!children->nb) {
 991                 gtk_signal_disconnect_by_data(GTK_OBJECT(children->dialog),
 992                                               children);
 993                 gtk_widget_destroy(children->dialog);
 994                 free_children(children);
 995         }
 996 }
 997
 998 static gint io_dialog_key_pressed_cb(GtkWidget *widget, GdkEventKey *event,
 999                                      gpointer data)
1000 {
1001         if (event && event->keyval == GDK_Escape)
1002                 hide_io_dialog_cb(widget, data);
1003         return TRUE;
1004 }
1005
1006 static void childinfo_close_pipes(ChildInfo *child_info)
1007 {
1008         /* stdout and stderr pipes are guaranteed to be removed by
1009          * their handler, but in case where we receive child exit notification
1010          * before grand-child's pipes closing signals, we check them and close
1011          * them if necessary
1012          */
1013         if (child_info->tag_in > 0)
1014                 gdk_input_remove(child_info->tag_in);
1015         if (child_info->tag_out > 0)
1016                 gdk_input_remove(child_info->tag_out);
1017         if (child_info->tag_err > 0)
1018                 gdk_input_remove(child_info->tag_err);
1019
1020         if (child_info->chld_in >= 0)
1021                 close(child_info->chld_in);
1022         if (child_info->chld_out >= 0)
1023                 close(child_info->chld_out);
1024         if (child_info->chld_err >= 0)
1025                 close(child_info->chld_err);
1026
1027         close(child_info->chld_status);
1028 }
1029
1030 static void free_children(Children *children)
1031 {
1032         ChildInfo *child_info;
1033
1034         debug_print("Freeing children data %p\n", children);
1035
1036         g_free(children->action);
1037         while (children->list != NULL) {
1038                 child_info = (ChildInfo *)children->list->data;
1039                 g_free(child_info->cmd);
1040                 g_string_free(child_info->output, TRUE);
1041                 children->list = g_slist_remove(children->list, child_info);
1042                 g_free(child_info);
1043         }
1044         g_free(children);
1045 }
1046
1047 static void update_io_dialog(Children *children)
1048 {
1049         GSList *cur;
1050
1051         debug_print("Updating actions input/output dialog.\n");
1052
1053         if (children->progress_bar) {
1054                 gtk_progress_configure(GTK_PROGRESS(children->progress_bar),
1055                                 children->initial_nb -children->nb,
1056                                 0.0, children->initial_nb);
1057         }
1058
1059         if (!children->nb) {
1060                 gtk_widget_set_sensitive(children->abort_btn, FALSE);
1061                 gtk_widget_set_sensitive(children->close_btn, TRUE);
1062                 if (children->input_hbox)
1063                         gtk_widget_set_sensitive(children->input_hbox, FALSE);
1064                 gtk_widget_grab_focus(children->close_btn);
1065                 gtk_signal_connect(GTK_OBJECT(children->dialog),
1066                                    "key_press_event",
1067                                    GTK_SIGNAL_FUNC(io_dialog_key_pressed_cb),
1068                                    children);
1069         }
1070
1071         if (children->output) {
1072                 GtkWidget *text = children->text;
1073                 gchar *caption;
1074                 ChildInfo *child_info;
1075                 GdkFont *font;
1076
1077                 font = gtk_object_get_data(GTK_OBJECT(children->dialog),
1078                                            "s_txtfont");
1079                 gtk_widget_show(children->scrolledwin);
1080                 gtk_text_freeze(GTK_TEXT(text));
1081                 gtk_text_set_point(GTK_TEXT(text), 0);
1082                 gtk_text_forward_delete(GTK_TEXT(text),
1083                                         gtk_text_get_length(GTK_TEXT(text)));
1084                 for (cur = children->list; cur; cur = cur->next) {
1085                         child_info = (ChildInfo *)cur->data;
1086                         if (child_info->pid)
1087                                 caption = g_strdup_printf
1088                                         (_("--- Running: %s\n"),
1089                                          child_info->cmd);
1090                         else
1091                                 caption = g_strdup_printf
1092                                         (_("--- Ended: %s\n"),
1093                                          child_info->cmd);
1094
1095                         gtk_text_insert(GTK_TEXT(text), font, NULL, NULL,
1096                                         caption, -1);
1097                         gtk_text_insert(GTK_TEXT(text), font, NULL, NULL,
1098                                         child_info->output->str, -1);
1099                         g_free(caption);
1100                         child_info->new_out = FALSE;
1101                 }
1102                 gtk_text_thaw(GTK_TEXT(text));
1103         }
1104 }
1105
1106 static void create_io_dialog(Children *children)
1107 {
1108         GtkWidget *dialog;
1109         GtkWidget *vbox;
1110         GtkWidget *entry = NULL;
1111         GtkWidget *input_hbox = NULL;
1112         GtkWidget *send_button;
1113         GtkWidget *label;
1114         GtkWidget *text;
1115         GtkWidget *scrolledwin;
1116         GtkWidget *hbox;
1117         GtkWidget *progress_bar = NULL;
1118         GtkWidget *abort_button;
1119         GtkWidget *close_button;
1120         GdkFont   *output_font;
1121
1122         debug_print("Creating action IO dialog\n");
1123
1124         dialog = gtk_dialog_new();
1125         gtk_container_set_border_width
1126                 (GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 5);
1127         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
1128         gtk_window_set_title(GTK_WINDOW(dialog), _("Action's input/output"));
1129         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
1130         manage_window_set_transient(GTK_WINDOW(dialog));
1131         gtk_signal_connect(GTK_OBJECT(dialog), "delete_event",
1132                         GTK_SIGNAL_FUNC(delete_io_dialog_cb), children);
1133         gtk_signal_connect(GTK_OBJECT(dialog), "destroy",
1134                         GTK_SIGNAL_FUNC(hide_io_dialog_cb),
1135                         children);
1136
1137         vbox = gtk_vbox_new(FALSE, 8);
1138         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), vbox);
1139         gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
1140         gtk_widget_show(vbox);
1141
1142         label = gtk_label_new(children->action);
1143         gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
1144         gtk_widget_show(label);
1145
1146         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
1147         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
1148                                        GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
1149         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
1150         gtk_widget_set_usize(scrolledwin, 480, 200);
1151         gtk_widget_hide(scrolledwin);
1152
1153         text = gtk_text_new(gtk_scrolled_window_get_hadjustment
1154                             (GTK_SCROLLED_WINDOW(scrolledwin)),
1155                             gtk_scrolled_window_get_vadjustment
1156                             (GTK_SCROLLED_WINDOW(scrolledwin)));
1157         gtk_text_set_editable(GTK_TEXT(text), FALSE);
1158         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
1159         gtk_widget_show(text);
1160
1161         if (children->open_in) {
1162                 input_hbox = gtk_hbox_new(FALSE, 8);
1163                 gtk_widget_show(input_hbox);
1164
1165                 entry = gtk_entry_new();
1166                 gtk_widget_set_usize(entry, 320, -1);
1167                 gtk_signal_connect(GTK_OBJECT(entry), "activate",
1168                                    GTK_SIGNAL_FUNC(send_input), children);
1169                 gtk_box_pack_start(GTK_BOX(input_hbox), entry, TRUE, TRUE, 0);
1170                 if (children->action_type & ACTION_USER_HIDDEN_IN)
1171                         gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE);
1172                 gtk_widget_show(entry);
1173
1174                 send_button = gtk_button_new_with_label(_(" Send "));
1175                 gtk_signal_connect(GTK_OBJECT(send_button), "clicked",
1176                                    GTK_SIGNAL_FUNC(send_input), children);
1177                 gtk_box_pack_start(GTK_BOX(input_hbox), send_button, FALSE,
1178                                    FALSE, 0);
1179                 gtk_widget_show(send_button);
1180
1181                 gtk_box_pack_start(GTK_BOX(vbox), input_hbox, FALSE, FALSE, 0);
1182                 gtk_widget_grab_focus(entry);
1183         }
1184
1185         if (children->initial_nb > 1) {
1186                 progress_bar = gtk_progress_bar_new();
1187                 gtk_progress_bar_set_bar_style(GTK_PROGRESS_BAR(progress_bar),
1188                                 GTK_PROGRESS_CONTINUOUS);
1189                 gtk_progress_bar_set_orientation(GTK_PROGRESS_BAR(progress_bar),
1190                                 GTK_PROGRESS_LEFT_TO_RIGHT);
1191                 gtk_progress_set_activity_mode(GTK_PROGRESS(progress_bar),
1192                                 FALSE);
1193                 gtk_progress_set_format_string(GTK_PROGRESS(progress_bar),
1194                                 _("Completed %v/%u"));
1195                 gtk_progress_set_show_text(GTK_PROGRESS(progress_bar), TRUE);
1196                 gtk_progress_configure(GTK_PROGRESS(progress_bar),
1197                                 children->initial_nb -children->nb,
1198                                 0.0, children->initial_nb);
1199
1200                 gtk_box_pack_start(GTK_BOX(vbox), progress_bar, FALSE, FALSE, 0);
1201                 gtk_widget_show(progress_bar);
1202         }
1203
1204         gtkut_button_set_create(&hbox, &abort_button, _("Abort"),
1205                                 &close_button, _("Close"), NULL, NULL);
1206         gtk_signal_connect(GTK_OBJECT(abort_button), "clicked",
1207                         GTK_SIGNAL_FUNC(kill_children_cb), children);
1208         gtk_signal_connect(GTK_OBJECT(close_button), "clicked",
1209                         GTK_SIGNAL_FUNC(hide_io_dialog_cb), children);
1210         gtk_widget_show(hbox);
1211
1212         if (children->nb)
1213                 gtk_widget_set_sensitive(close_button, FALSE);
1214
1215         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), hbox);
1216
1217         children->dialog       = dialog;
1218         children->scrolledwin  = scrolledwin;
1219         children->text         = text;
1220         children->input_hbox   = children->open_in ? input_hbox : NULL;
1221         children->input_entry  = children->open_in ? entry : NULL;
1222         children->progress_bar = progress_bar;
1223         children->abort_btn    = abort_button;
1224         children->close_btn    = close_button;
1225
1226         output_font = gtkut_font_load_from_fontset(prefs_common.textfont);
1227         gtk_object_set_data_full(GTK_OBJECT(dialog), "s_txtfont",
1228                                  output_font,
1229                                  (GtkDestroyNotify)gdk_font_unref);
1230         gtk_widget_show(dialog);
1231 }
1232
1233 static void catch_status(gpointer data, gint source, GdkInputCondition cond)
1234 {
1235         ChildInfo *child_info = (ChildInfo *)data;
1236         gchar buf;
1237         gint c;
1238
1239         gdk_input_remove(child_info->tag_status);
1240
1241         c = read(source, &buf, 1);
1242         debug_print("Child returned %c\n", buf);
1243
1244         waitpid(-child_info->pid, NULL, 0);
1245         childinfo_close_pipes(child_info);
1246         child_info->pid = 0;
1247
1248         wait_for_children(child_info->children);
1249 }
1250
1251 static void catch_input(gpointer data, gint source, GdkInputCondition cond)
1252 {
1253         Children *children = (Children *)data;
1254         ChildInfo *child_info = (ChildInfo *)children->list->data;
1255         gchar *input;
1256         gint c, count, len;
1257
1258         debug_print("Sending input to grand child.\n");
1259         if (!(cond && GDK_INPUT_WRITE))
1260                 return;
1261
1262         gdk_input_remove(child_info->tag_in);
1263         child_info->tag_in = -1;
1264
1265         input = gtk_editable_get_chars(GTK_EDITABLE(children->input_entry),
1266                                        0, -1);
1267         len = strlen(input);
1268         count = 0;
1269
1270         do {
1271                 c = write(child_info->chld_in, input + count, len - count);
1272                 if (c >= 0)
1273                         count += c;
1274         } while (c >= 0 && count < len);
1275
1276         if (c >= 0)
1277                 write(child_info->chld_in, "\n", 2);
1278
1279         g_free(input);
1280
1281         gtk_entry_set_text(GTK_ENTRY(children->input_entry), "");
1282         gtk_widget_set_sensitive(children->input_hbox, TRUE);
1283         close(child_info->chld_in);
1284         child_info->chld_in = -1;
1285         debug_print("Input to grand child sent.\n");
1286 }
1287
1288 static void catch_output(gpointer data, gint source, GdkInputCondition cond)
1289 {
1290         ChildInfo *child_info = (ChildInfo *)data;
1291         gint c, i;
1292         gchar buf[BUFFSIZE];
1293
1294         debug_print("Catching grand child's output.\n");
1295         if (child_info->children->action_type &
1296             (ACTION_PIPE_OUT | ACTION_INSERT)
1297             && source == child_info->chld_out) {
1298                 gboolean is_selection = FALSE;
1299                 GtkWidget *text = child_info->children->msg_text;
1300
1301                 if (GTK_EDITABLE(text)->has_selection)
1302                         is_selection = TRUE;
1303                 gtk_stext_freeze(GTK_STEXT(text));
1304                 while (TRUE) {
1305                         c = read(source, buf, sizeof(buf) - 1);
1306                         if (c == 0)
1307                                 break;
1308                         gtk_stext_insert(GTK_STEXT(text),
1309                                          child_info->children->msgfont,
1310                                          NULL, NULL, buf, c);
1311                 }
1312                 if (is_selection) {
1313                         /* Using the select_region draws things. Should not.
1314                          * so we just change selection position and
1315                          * defere drawing when thawing. Hack?
1316                          */
1317                         GTK_EDITABLE(text)->selection_end_pos =
1318                                         gtk_stext_get_point(GTK_STEXT(text));
1319                 }
1320                 gtk_stext_thaw(GTK_STEXT(text));
1321         } else {
1322                 c = read(source, buf, sizeof(buf) - 1);
1323                 for (i = 0; i < c; i++)
1324                         g_string_append_c(child_info->output, buf[i]);
1325                 if (c > 0)
1326                         child_info->new_out = TRUE;
1327         }
1328         if (c == 0) {
1329                 if (source == child_info->chld_out) {
1330                         gdk_input_remove(child_info->tag_out);
1331                         child_info->tag_out = -1;
1332                         close(child_info->chld_out);
1333                         child_info->chld_out = -1;
1334                 } else {
1335                         gdk_input_remove(child_info->tag_err);
1336                         child_info->tag_err = -1;
1337                         close(child_info->chld_err);
1338                         child_info->chld_err = -1;
1339                 }
1340         }
1341
1342         wait_for_children(child_info->children);
1343 }
1344
1345 static gchar *get_user_string(const gchar *action, ActionType type)
1346 {
1347         gchar *message;
1348         gchar *user_str = NULL;
1349
1350         switch (type) {
1351         case ACTION_USER_HIDDEN_STR:
1352                 message = g_strdup_printf
1353                         (_("Enter the argument for the following action:\n"
1354                            "(`%%h' will be replaced with the argument)\n"
1355                            "  %s"),
1356                          action);
1357                 user_str = input_dialog_with_invisible
1358                         (_("Action's hidden user argument"), message, NULL);
1359                 break;
1360         case ACTION_USER_STR:
1361                 message = g_strdup_printf
1362                         (_("Enter the argument for the following action:\n"
1363                            "(`%%u' will be replaced with the argument)\n"
1364                            "  %s"),
1365                          action);
1366                 user_str = input_dialog
1367                         (_("Action's user argument"), message, NULL);
1368                 break;
1369         default:
1370                 g_warning("Unsupported action type %d", type);
1371         }
1372
1373         return user_str;
1374 }