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 #ifdef GDK_WINDOWING_X11
  30 #       include <gdk/gdkx.h>
  31 #endif /* GDK_WINDOWING_X11 */
  32 #include <stdio.h>
  33 #include <stdlib.h>
  34 #include <string.h>
  35 #include <errno.h>
  36 #include <sys/types.h>
  37 #include <sys/wait.h>
  38 #include <signal.h>
  39 #include <unistd.h>
  40
  41 #include "intl.h"
  42 #include "utils.h"
  43 #include "gtkutils.h"
  44 #include "manage_window.h"
  45 #include "mainwindow.h"
  46 #include "prefs_common.h"
  47 #include "alertpanel.h"
  48 #include "inputdialog.h"
  49 #include "action.h"
  50 #include "compose.h"
  51 #include "procmsg.h"
  52 #include "textview.h"
  53 #include "matcher_parser.h" /* CLAWS */
  54 #include "filtering.h"
  55
  56 typedef struct _Children                Children;
  57 typedef struct _ChildInfo               ChildInfo;
  58 typedef struct _UserStringDialog        UserStringDialog;
  59
  60 struct _Children
  61 {
  62         GtkWidget       *dialog;
  63         GtkWidget       *text;
  64         GtkWidget       *input_entry;
  65         GtkWidget       *input_hbox;
  66         GtkWidget       *progress_bar;
  67         GtkWidget       *abort_btn;
  68         GtkWidget       *close_btn;
  69         GtkWidget       *scrolledwin;
  70
  71         gchar           *action;
  72         ActionType       action_type;
  73         GSList          *list;
  74         gint             nb;
  75         gint             initial_nb;
  76         gint             open_in;
  77         gboolean         output;
  78
  79         GtkWidget       *msg_text;
  80
  81         gboolean         is_selection;
  82 };
  83
  84 struct _ChildInfo
  85 {
  86         Children        *children;
  87         gchar           *cmd;
  88         pid_t            pid;
  89         gint             chld_in;
  90         gint             chld_out;
  91         gint             chld_err;
  92         gint             chld_status;
  93         gint             tag_in;
  94         gint             tag_out;
  95         gint             tag_err;
  96         gint             tag_status;
  97         gint             new_out;
  98
  99         GString         *output;
 100 };
 101
 102 static void action_update_menu          (GtkItemFactory *ifactory,
 103                                          gchar          *branch_path,
 104                                          gpointer        callback,
 105                                          gpointer        data);
 106 static void compose_actions_execute_cb  (Compose        *compose,
 107                                          guint           action_nb,
 108                                          GtkWidget      *widget);
 109 static void mainwin_actions_execute_cb  (MainWindow     *mainwin,
 110                                          guint           action_nb,
 111                                          GtkWidget      *widget);
 112 static void msgview_actions_execute_cb  (MessageView    *msgview,
 113                                          guint           action_nb,
 114                                          GtkWidget      *widget);
 115 static void message_actions_execute     (MessageView    *msgview,
 116                                          guint           action_nb,
 117                                          GSList         *msg_list);
 118
 119 static gboolean execute_filtering_actions(gchar         *action,
 120                                           GSList        *msglist);
 121
 122 static gboolean execute_actions         (gchar          *action,
 123                                          GSList         *msg_list,
 124                                          GtkWidget      *text,
 125                                          gint            body_pos,
 126                                          MimeInfo       *partinfo);
 127
 128 static gchar *parse_action_cmd          (gchar          *action,
 129                                          MsgInfo        *msginfo,
 130                                          GSList         *msg_list,
 131                                          MimeInfo       *partinfo,
 132                                          const gchar    *user_str,
 133                                          const gchar    *user_hidden_str,
 134                                          const gchar    *sel_str);
 135 static gboolean parse_append_filename   (GString        *cmd,
 136                                          MsgInfo        *msginfo);
 137
 138 static gboolean parse_append_msgpart    (GString        *cmd,
 139                                          MsgInfo        *msginfo,
 140                                          MimeInfo       *partinfo);
 141
 142 static ChildInfo *fork_child            (gchar          *cmd,
 143                                          const gchar    *msg_str,
 144                                          Children       *children);
 145
 146 static gint wait_for_children           (Children       *children);
 147
 148 static void free_children               (Children       *children);
 149
 150 static void childinfo_close_pipes       (ChildInfo      *child_info);
 151
 152 static void create_io_dialog            (Children       *children);
 153 static void update_io_dialog            (Children       *children);
 154
 155 static void hide_io_dialog_cb           (GtkWidget      *widget,
 156                                          gpointer        data);
 157 static gint io_dialog_key_pressed_cb    (GtkWidget      *widget,
 158                                          GdkEventKey    *event,
 159                                          gpointer        data);
 160
 161 static void catch_output                (gpointer                data,
 162                                          gint                    source,
 163                                          GdkInputCondition       cond);
 164 static void catch_input                 (gpointer                data,
 165                                          gint                    source,
 166                                          GdkInputCondition       cond);
 167 static void catch_status                (gpointer                data,
 168                                          gint                    source,
 169                                          GdkInputCondition       cond);
 170
 171 static gchar *get_user_string           (const gchar    *action,
 172                                          ActionType      type);
 173
 174
 175 ActionType action_get_type(const gchar *action_str)
 176 {
 177         const gchar *p;
 178         ActionType action_type = ACTION_NONE;
 179
 180         g_return_val_if_fail(action_str,  ACTION_ERROR);
 181         g_return_val_if_fail(*action_str, ACTION_ERROR);
 182
 183         p = action_str;
 184
 185         if (p[0] == '|') {
 186                 action_type |= ACTION_PIPE_IN;
 187                 p++;
 188         } else if (p[0] == '>') {
 189                 action_type |= ACTION_USER_IN;
 190                 p++;
 191         } else if (p[0] == '*') {
 192                 action_type |= ACTION_USER_HIDDEN_IN;
 193                 p++;
 194         }
 195
 196         if (p[0] == '\0')
 197                 return ACTION_ERROR;
 198
 199         while (*p && action_type != ACTION_ERROR) {
 200                 if (p[0] == '%' && p[1]) {
 201                         switch (p[1]) {
 202                         case 'a':
 203                                 /* CLAWS: filtering action is a mutually exclusive
 204                                  * action. we can enable others if needed later. we
 205                                  * add ACTION_SINGLE | ACTION_MULTIPLE so it will
 206                                  * only be executed from the main window toolbar */
 207                                 if (p[2] == 's')  /* source messages */
 208                                         action_type = ACTION_FILTERING_ACTION
 209                                                     | ACTION_SINGLE
 210                                                     | ACTION_MULTIPLE;
 211                                 break;
 212                         case 'f':
 213                                 action_type |= ACTION_SINGLE;
 214                                 break;
 215                         case 'F':
 216                                 action_type |= ACTION_MULTIPLE;
 217                                 break;
 218                         case 'p':
 219                                 action_type |= ACTION_SINGLE;
 220                                 break;
 221                         case 's':
 222                                 action_type |= ACTION_SELECTION_STR;
 223                                 break;
 224                         case 'u':
 225                                 action_type |= ACTION_USER_STR;
 226                                 break;
 227                         case 'h':
 228                                 action_type |= ACTION_USER_HIDDEN_STR;
 229                                 break;
 230                         default:
 231                                 action_type = ACTION_ERROR;
 232                                 break;
 233                         }
 234                 } else if (p[0] == '|') {
 235                         if (p[1] == '\0')
 236                                 action_type |= ACTION_PIPE_OUT;
 237                 } else if (p[0] == '>') {
 238                         if (p[1] == '\0')
 239                                 action_type |= ACTION_INSERT;
 240                 } else if (p[0] == '&') {
 241                         if (p[1] == '\0')
 242                                 action_type |= ACTION_ASYNC;
 243                 }
 244                 p++;
 245         }
 246
 247         return action_type;
 248 }
 249
 250 static gchar *parse_action_cmd(gchar *action, MsgInfo *msginfo,
 251                                GSList *msg_list, MimeInfo *partinfo,
 252                                const gchar *user_str,
 253                                const gchar *user_hidden_str,
 254                                const gchar *sel_str)
 255 {
 256         GString *cmd;
 257         gchar *p;
 258         GSList *cur;
 259
 260         p = action;
 261
 262         if (p[0] == '|' || p[0] == '>' || p[0] == '*')
 263                 p++;
 264
 265         cmd = g_string_sized_new(strlen(action));
 266
 267         while (p[0] &&
 268                !((p[0] == '|' || p[0] == '>' || p[0] == '&') && !p[1])) {
 269                 if (p[0] == '%' && p[1]) {
 270                         switch (p[1]) {
 271                         case 'f':
 272                                 if (!parse_append_filename(cmd, msginfo)) {
 273                                         g_string_free(cmd, TRUE);
 274                                         return NULL;
 275                                 }
 276                                 p++;
 277                                 break;
 278                         case 'F':
 279                                 for (cur = msg_list; cur != NULL;
 280                                      cur = cur->next) {
 281                                         MsgInfo *msg = (MsgInfo *)cur->data;
 282
 283                                         if (!parse_append_filename(cmd, msg)) {
 284                                                 g_string_free(cmd, TRUE);
 285                                                 return NULL;
 286                                         }
 287                                         if (cur->next)
 288                                                 g_string_append_c(cmd, ' ');
 289                                 }
 290                                 p++;
 291                                 break;
 292                         case 'p':
 293                                 if (!parse_append_msgpart(cmd, msginfo,
 294                                                           partinfo)) {
 295                                         g_string_free(cmd, TRUE);
 296                                         return NULL;
 297                                 }
 298                                 p++;
 299                                 break;
 300                         case 's':
 301                                 if (sel_str)
 302                                         g_string_append(cmd, sel_str);
 303                                 p++;
 304                                 break;
 305                         case 'u':
 306                                 if (user_str)
 307                                         g_string_append(cmd, user_str);
 308                                 p++;
 309                                 break;
 310                         case 'h':
 311                                 if (user_hidden_str)
 312                                         g_string_append(cmd, user_hidden_str);
 313                                 p++;
 314                                 break;
 315                         default:
 316                                 g_string_append_c(cmd, p[0]);
 317                                 g_string_append_c(cmd, p[1]);
 318                                 p++;
 319                         }
 320                 } else {
 321                         g_string_append_c(cmd, p[0]);
 322                 }
 323                 p++;
 324         }
 325         if (cmd->len == 0) {
 326                 g_string_free(cmd, TRUE);
 327                 return NULL;
 328         }
 329
 330         p = cmd->str;
 331         g_string_free(cmd, FALSE);
 332         return p;
 333 }
 334
 335 static gboolean parse_append_filename(GString *cmd, MsgInfo *msginfo)
 336 {
 337         gchar *filename;
 338
 339         g_return_val_if_fail(msginfo, FALSE);
 340
 341         filename = procmsg_get_message_file(msginfo);
 342
 343         if (filename) {
 344                 g_string_append(cmd, filename);
 345                 g_free(filename);
 346         } else {
 347                 alertpanel_error(_("Could not get message file %d"),
 348                                  msginfo->msgnum);
 349                 return FALSE;
 350         }
 351
 352         return TRUE;
 353 }
 354
 355 static gboolean parse_append_msgpart(GString *cmd, MsgInfo *msginfo,
 356                                      MimeInfo *partinfo)
 357 {
 358         gboolean single_part = FALSE;
 359         gchar *filename;
 360         gchar *part_filename;
 361         gint ret;
 362
 363         if (!partinfo) {
 364                 partinfo = procmime_scan_message(msginfo);
 365                 if (!partinfo) {
 366                         alertpanel_error(_("Could not get message part."));
 367                         return FALSE;
 368                 }
 369
 370                 single_part = TRUE;
 371         }
 372
 373         filename = procmsg_get_message_file_path(msginfo);
 374         part_filename = procmime_get_tmp_file_name(partinfo);
 375
 376         ret = procmime_get_part(part_filename, partinfo);
 377
 378         if (single_part)
 379                 procmime_mimeinfo_free_all(partinfo);
 380         g_free(filename);
 381
 382         if (ret < 0) {
 383                 alertpanel_error(_("Can't get part of multipart message"));
 384                 g_free(part_filename);
 385                 return FALSE;
 386         }
 387
 388         g_string_append(cmd, part_filename);
 389
 390         g_free(part_filename);
 391
 392         return TRUE;
 393 }
 394
 395 void actions_execute(gpointer data,
 396                      guint action_nb,
 397                      GtkWidget *widget,
 398                      gint source)
 399 {
 400         if (source == TOOLBAR_MAIN)
 401                 mainwin_actions_execute_cb((MainWindow*)data, action_nb, widget);
 402         else if (source == TOOLBAR_COMPOSE)
 403                 compose_actions_execute_cb((Compose*)data, action_nb, widget);
 404         else if (source == TOOLBAR_MSGVIEW)
 405                 msgview_actions_execute_cb((MessageView*)data, action_nb, widget);
 406 }
 407
 408 void action_update_mainwin_menu(GtkItemFactory *ifactory,
 409                                 gchar *branch_path,
 410                                 MainWindow *mainwin)
 411 {
 412         action_update_menu(ifactory, branch_path,
 413                            mainwin_actions_execute_cb, mainwin);
 414 }
 415
 416 void action_update_msgview_menu(GtkItemFactory *ifactory,
 417                                 gchar *branch_path,
 418                                 MessageView *msgview)
 419 {
 420         action_update_menu(ifactory, branch_path,
 421                            msgview_actions_execute_cb, msgview);
 422 }
 423
 424 void action_update_compose_menu(GtkItemFactory *ifactory,
 425                                 gchar *branch_path,
 426                                 Compose *compose)
 427 {
 428         action_update_menu(ifactory, branch_path,
 429                            compose_actions_execute_cb, compose);
 430 }
 431
 432 static void action_update_menu(GtkItemFactory *ifactory,
 433                                gchar *branch_path,
 434                                gpointer callback, gpointer data)
 435 {
 436         GtkWidget *menuitem;
 437         gchar *menu_path;
 438         GSList *cur;
 439         gchar *action, *action_p;
 440         GList *amenu;
 441         GtkItemFactoryEntry ifentry = {NULL, NULL, NULL, 0, "<Branch>"};
 442
 443         ifentry.path = branch_path;
 444         menuitem = gtk_item_factory_get_widget(ifactory, branch_path);
 445         g_return_if_fail(menuitem != NULL);
 446
 447         amenu = GTK_MENU_SHELL(menuitem)->children;
 448         while (amenu != NULL) {
 449                 GList *alist = amenu->next;
 450                 gtk_widget_destroy(GTK_WIDGET(amenu->data));
 451                 amenu = alist;
 452         }
 453
 454         ifentry.accelerator     = NULL;
 455         ifentry.callback_action = 0;
 456         ifentry.callback        = callback;
 457         ifentry.item_type       = NULL;
 458
 459         for (cur = prefs_common.actions_list; cur; cur = cur->next) {
 460                 action   = g_strdup((gchar *)cur->data);
 461                 action_p = strstr(action, ": ");
 462                 if (action_p && action_p[2] &&
 463                     action_get_type(&action_p[2]) != ACTION_ERROR) {
 464                         action_p[0] = 0x00;
 465                         menu_path = g_strdup_printf("%s/%s", branch_path,
 466                                                     action);
 467                         ifentry.path = menu_path;
 468                         gtk_item_factory_create_item(ifactory, &ifentry, data,
 469                                                      1);
 470                         g_free(menu_path);
 471                 }
 472                 g_free(action);
 473                 ifentry.callback_action++;
 474         }
 475 }
 476
 477 static void compose_actions_execute_cb(Compose *compose, guint action_nb,
 478                                        GtkWidget *widget)
 479 {
 480         gchar *buf, *action;
 481         ActionType action_type;
 482
 483         g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));
 484
 485         buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
 486         g_return_if_fail(buf != NULL);
 487         action = strstr(buf, ": ");
 488         g_return_if_fail(action != NULL);
 489
 490         /* Point to the beginning of the command-line */
 491         action += 2;
 492
 493         action_type = action_get_type(action);
 494         if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE)) {
 495                 alertpanel_warning
 496                         (_("The selected action cannot be used in the compose window\n"
 497                            "because it contains %%f, %%F, %%as or %%p."));
 498                 return;
 499         }
 500
 501         execute_actions(action, NULL, compose->text, 0, NULL);
 502 }
 503
 504 static void mainwin_actions_execute_cb(MainWindow *mainwin, guint action_nb,
 505                                        GtkWidget *widget)
 506 {
 507         GSList *msg_list;
 508
 509         msg_list = summary_get_selected_msg_list(mainwin->summaryview);
 510         message_actions_execute(mainwin->messageview, action_nb, msg_list);
 511         g_slist_free(msg_list);
 512 }
 513
 514 static void msgview_actions_execute_cb(MessageView *msgview, guint action_nb,
 515                                        GtkWidget *widget)
 516 {
 517         GSList *msg_list = NULL;
 518
 519         if (msgview->msginfo)
 520                 msg_list = g_slist_append(msg_list, msgview->msginfo);
 521         message_actions_execute(msgview, action_nb, msg_list);
 522         g_slist_free(msg_list);
 523 }
 524
 525 static void message_actions_execute(MessageView *msgview, guint action_nb,
 526                                     GSList *msg_list)
 527 {
 528         TextView *textview;
 529         MimeInfo *partinfo;
 530         gchar *buf;
 531         gchar *action;
 532         GtkWidget *text = 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                 body_pos = textview->body_pos;
 550         }
 551         partinfo = messageview_get_selected_mime_part(msgview);
 552
 553         /* this command will alter the message text */
 554         action_type = action_get_type(action);
 555         if (action_type & (ACTION_PIPE_OUT | ACTION_INSERT))
 556                 msgview->filtered = TRUE;
 557
 558         if (action_type & ACTION_FILTERING_ACTION)
 559                 /* CLAWS: most of the above code is not necessary for applying
 560                  * filtering */
 561                 execute_filtering_actions(action, msg_list);
 562         else
 563                 execute_actions(action, msg_list, text, body_pos, partinfo);
 564 }
 565
 566 static gboolean execute_filtering_actions(gchar *action, GSList *msglist)
 567 {
 568         GSList *action_list, *p;
 569         const gchar *sbegin, *send;
 570         gchar *action_string;
 571
 572         if (NULL == (sbegin = strstr2(action, "%as{")))
 573                 return FALSE;
 574         sbegin += sizeof "%as{" - 1;
 575         if (NULL == (send = strrchr(sbegin, '}')))
 576                 return FALSE;
 577         action_string = g_strndup(sbegin, send - sbegin);
 578
 579         action_list = matcher_parser_get_action_list(action_string);
 580         g_free(action_string);
 581         if (action_list == NULL) return FALSE;
 582
 583         /* apply actions on each message info */
 584         for (p = msglist; p && p->data; p = g_slist_next(p))
 585                 filteringaction_apply_action_list(action_list, (MsgInfo *) p->data);
 586
 587         for (p = action_list; p; p = g_slist_next(p))
 588                 if (p->data) filteringaction_free(p->data);
 589         g_slist_free(action_list);
 590         return TRUE;
 591 }
 592
 593 static gboolean execute_actions(gchar *action, GSList *msg_list,
 594                                 GtkWidget *text,
 595                                 gint body_pos, MimeInfo *partinfo)
 596 {
 597         GSList *children_list = NULL;
 598         gint is_ok  = TRUE;
 599         gint msg_list_len;
 600         Children *children;
 601         ChildInfo *child_info;
 602         ActionType action_type;
 603         MsgInfo *msginfo;
 604         gchar *cmd;
 605         gchar *sel_str = NULL;
 606         gchar *msg_str = NULL;
 607         gchar *user_str = NULL;
 608         gchar *user_hidden_str = NULL;
 609         GtkTextIter start_iter, end_iter;
 610         gboolean is_selection = FALSE;
 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                 GtkTextBuffer *textbuf;
 638
 639                 textbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 640                 is_selection = gtk_text_buffer_get_selection_bounds(textbuf,
 641                                                                     &start_iter,
 642                                                                     &end_iter);
 643                 if (!is_selection) {
 644                         gtk_text_buffer_get_start_iter(textbuf, &start_iter);
 645                         gtk_text_buffer_get_end_iter(textbuf, &end_iter);
 646                 }
 647                 msg_str = gtk_text_buffer_get_text(textbuf,
 648                                                    &start_iter, &end_iter,
 649                                                    FALSE);
 650                 if (is_selection)
 651                         sel_str = g_strdup (msg_str);
 652         }
 653
 654         if (action_type & ACTION_USER_STR) {
 655                 if (!(user_str = get_user_string(action, ACTION_USER_STR))) {
 656                         g_free(msg_str);
 657                         g_free(sel_str);
 658                         return FALSE;
 659                 }
 660         }
 661
 662         if (action_type & ACTION_USER_HIDDEN_STR) {
 663                 if (!(user_hidden_str =
 664                         get_user_string(action, ACTION_USER_HIDDEN_STR))) {
 665                         g_free(msg_str);
 666                         g_free(sel_str);
 667                         g_free(user_str);
 668                         return FALSE;
 669                 }
 670         }
 671
 672         if (text && (action_type & ACTION_PIPE_OUT)) {
 673                 GtkTextBuffer *textbuf;
 674                 textbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 675                 gtk_text_buffer_delete(textbuf, &start_iter, &end_iter);
 676         }
 677
 678         children = g_new0(Children, 1);
 679
 680         children->action      = g_strdup(action);
 681         children->action_type = action_type;
 682         children->msg_text    = text;
 683         children->is_selection = is_selection;
 684
 685         if ((action_type & (ACTION_USER_IN | ACTION_USER_HIDDEN_IN)) &&
 686             ((action_type & ACTION_SINGLE) == 0 || msg_list_len == 1))
 687                 children->open_in = 1;
 688
 689         if (action_type & ACTION_SINGLE) {
 690                 GSList *cur;
 691
 692                 for (cur = msg_list; cur && is_ok == TRUE; cur = cur->next) {
 693                         msginfo = (MsgInfo *)cur->data;
 694                         if (!msginfo) {
 695                                 is_ok  = FALSE; /* ERR: msginfo missing */
 696                                 break;
 697                         }
 698                         cmd = parse_action_cmd(action, msginfo, msg_list,
 699                                                partinfo, user_str,
 700                                                user_hidden_str, sel_str);
 701                         if (!cmd) {
 702                                 debug_print("Action command error\n");
 703                                 is_ok  = FALSE; /* ERR: incorrect command */
 704                                 break;
 705                         }
 706                         if ((child_info = fork_child(cmd, msg_str, children))) {
 707                                 children_list = g_slist_append(children_list,
 708                                                                child_info);
 709                         }
 710                         g_free(cmd);
 711                 }
 712         } else {
 713                 cmd = parse_action_cmd(action, NULL, msg_list, partinfo,
 714                                        user_str, user_hidden_str, sel_str);
 715                 if (cmd) {
 716                         if ((child_info = fork_child(cmd, msg_str, children))) {
 717                                 children_list = g_slist_append(children_list,
 718                                                                child_info);
 719                         }
 720                         g_free(cmd);
 721                 } else
 722                         is_ok  = FALSE;         /* ERR: incorrect command */
 723         }
 724
 725         g_free(msg_str);
 726         g_free(sel_str);
 727         g_free(user_str);
 728         g_free(user_hidden_str);
 729
 730         if (!children_list) {
 731                  /* If not waiting for children, return */
 732                 free_children(children);
 733         } else {
 734                 GSList *cur;
 735
 736                 children->list        = children_list;
 737                 children->nb          = g_slist_length(children_list);
 738                 children->initial_nb  = children->nb;
 739
 740                 for (cur = children_list; cur; cur = cur->next) {
 741                         child_info = (ChildInfo *) cur->data;
 742                         child_info->tag_status =
 743                                 gdk_input_add(child_info->chld_status,
 744                                               GDK_INPUT_READ,
 745                                               catch_status, child_info);
 746                 }
 747
 748                 create_io_dialog(children);
 749         }
 750
 751         return is_ok;
 752 }
 753
 754 static ChildInfo *fork_child(gchar *cmd, const gchar *msg_str,
 755                              Children *children)
 756 {
 757         gint chld_in[2], chld_out[2], chld_err[2], chld_status[2];
 758         gchar *cmdline[4];
 759         pid_t pid, gch_pid;
 760         ChildInfo *child_info;
 761         gint sync;
 762
 763         sync = !(children->action_type & ACTION_ASYNC);
 764
 765         chld_in[0] = chld_in[1] = chld_out[0] = chld_out[1] = chld_err[0]
 766                 = chld_err[1] = chld_status[0] = chld_status[1] = -1;
 767
 768         if (sync) {
 769                 if (pipe(chld_status) || pipe(chld_in) || pipe(chld_out) ||
 770                     pipe(chld_err)) {
 771                         alertpanel_error(_("Command could not be started. "
 772                                            "Pipe creation failed.\n%s"),
 773                                         g_strerror(errno));
 774                         /* Closing fd = -1 fails silently */
 775                         close(chld_in[0]);
 776                         close(chld_in[1]);
 777                         close(chld_out[0]);
 778                         close(chld_out[1]);
 779                         close(chld_err[0]);
 780                         close(chld_err[1]);
 781                         close(chld_status[0]);
 782                         close(chld_status[1]);
 783                         return NULL; /* Pipe error */
 784                 }
 785         }
 786
 787         debug_print("Forking child and grandchild.\n");
 788
 789         pid = fork();
 790         if (pid == 0) { /* Child */
 791                 if (setpgid(0, 0))
 792                         perror("setpgid");
 793
 794 #ifdef GDK_WINDOWING_X11
 795                 close(ConnectionNumber(gdk_display));
 796 #endif /* GDK_WINDOWING_X11 */
 797
 798                 gch_pid = fork();
 799
 800                 if (gch_pid == 0) {
 801                         if (setpgid(0, getppid()))
 802                                 perror("setpgid");
 803
 804                         if (sync) {
 805                                 if (children->action_type &
 806                                     (ACTION_PIPE_IN |
 807                                      ACTION_USER_IN |
 808                                      ACTION_USER_HIDDEN_IN)) {
 809                                         close(fileno(stdin));
 810                                         dup  (chld_in[0]);
 811                                 }
 812                                 close(chld_in[0]);
 813                                 close(chld_in[1]);
 814
 815                                 close(fileno(stdout));
 816                                 dup  (chld_out[1]);
 817                                 close(chld_out[0]);
 818                                 close(chld_out[1]);
 819
 820                                 close(fileno(stderr));
 821                                 dup  (chld_err[1]);
 822                                 close(chld_err[0]);
 823                                 close(chld_err[1]);
 824                         }
 825
 826                         cmdline[0] = "sh";
 827                         cmdline[1] = "-c";
 828                         cmdline[2] = cmd;
 829                         cmdline[3] = 0;
 830                         execvp("/bin/sh", cmdline);
 831
 832                         perror("execvp");
 833                         _exit(1);
 834                 } else if (gch_pid < (pid_t) 0) { /* Fork error */
 835                         if (sync)
 836                                 write(chld_status[1], "1\n", 2);
 837                         perror("fork");
 838                         _exit(1);
 839                 } else { /* Child */
 840                         if (sync) {
 841                                 close(chld_in[0]);
 842                                 close(chld_in[1]);
 843                                 close(chld_out[0]);
 844                                 close(chld_out[1]);
 845                                 close(chld_err[0]);
 846                                 close(chld_err[1]);
 847                                 close(chld_status[0]);
 848
 849                                 debug_print("Child: Waiting for grandchild\n");
 850                                 waitpid(gch_pid, NULL, 0);
 851                                 debug_print("Child: grandchild ended\n");
 852                                 write(chld_status[1], "0\n", 2);
 853                                 close(chld_status[1]);
 854                         }
 855                         _exit(0);
 856                 }
 857         } else if (pid < 0) { /* Fork error */
 858                 alertpanel_error(_("Could not fork to execute the following "
 859                                    "command:\n%s\n%s"),
 860                                  cmd, g_strerror(errno));
 861                 return NULL;
 862         }
 863
 864         /* Parent */
 865
 866         if (!sync) {
 867                 waitpid(pid, NULL, 0);
 868                 return NULL;
 869         }
 870
 871         close(chld_in[0]);
 872         if (!(children->action_type &
 873               (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 874                 close(chld_in[1]);
 875         close(chld_out[1]);
 876         close(chld_err[1]);
 877         close(chld_status[1]);
 878
 879         child_info = g_new0(ChildInfo, 1);
 880
 881         child_info->children    = children;
 882
 883         child_info->pid         = pid;
 884         child_info->cmd         = g_strdup(cmd);
 885         child_info->new_out     = FALSE;
 886         child_info->output      = g_string_new(NULL);
 887         child_info->chld_in     =
 888                 (children->action_type &
 889                  (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN))
 890                         ? chld_in [1] : -1;
 891         child_info->chld_out    = chld_out[0];
 892         child_info->chld_err    = chld_err[0];
 893         child_info->chld_status = chld_status[0];
 894         child_info->tag_in      = -1;
 895         child_info->tag_out     = gdk_input_add(chld_out[0], GDK_INPUT_READ,
 896                                                 catch_output, child_info);
 897         child_info->tag_err     = gdk_input_add(chld_err[0], GDK_INPUT_READ,
 898                                                 catch_output, child_info);
 899
 900         if (!(children->action_type &
 901               (ACTION_PIPE_IN | ACTION_PIPE_OUT | ACTION_INSERT)))
 902                 return child_info;
 903
 904         if ((children->action_type & ACTION_PIPE_IN) && msg_str) {
 905                 write(chld_in[1], msg_str, strlen(msg_str));
 906                 if (!(children->action_type &
 907                       (ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 908                         close(chld_in[1]);
 909                 child_info->chld_in = -1; /* No more input */
 910         }
 911
 912         return child_info;
 913 }
 914
 915 static void kill_children_cb(GtkWidget *widget, gpointer data)
 916 {
 917         GSList *cur;
 918         Children *children = (Children *) data;
 919         ChildInfo *child_info;
 920
 921         for (cur = children->list; cur; cur = cur->next) {
 922                 child_info = (ChildInfo *)(cur->data);
 923                 debug_print("Killing child group id %d\n", child_info->pid);
 924                 if (child_info->pid && kill(-child_info->pid, SIGTERM) < 0)
 925                         perror("kill");
 926         }
 927 }
 928
 929 static gint wait_for_children(Children *children)
 930 {
 931         gboolean new_output;
 932         ChildInfo *child_info;
 933         GSList *cur;
 934         gint nb = children->nb;
 935
 936         children->nb = 0;
 937
 938         cur = children->list;
 939         new_output = FALSE;
 940         while (cur) {
 941                 child_info = (ChildInfo *)cur->data;
 942                 if (child_info->pid)
 943                         children->nb++;
 944                 new_output |= child_info->new_out;
 945                 cur = cur->next;
 946         }
 947
 948         children->output |= new_output;
 949
 950         if (new_output || (children->dialog && (nb != children->nb)))
 951                 update_io_dialog(children);
 952
 953         if (children->nb)
 954                 return FALSE;
 955
 956         if (!children->dialog) {
 957                 free_children(children);
 958         } else if (!children->output) {
 959                 gtk_widget_destroy(children->dialog);
 960         }
 961
 962         return FALSE;
 963 }
 964
 965 static void send_input(GtkWidget *w, gpointer data)
 966 {
 967         Children *children = (Children *) data;
 968         ChildInfo *child_info = (ChildInfo *) children->list->data;
 969
 970         child_info->tag_in = gdk_input_add(child_info->chld_in,
 971                                            GDK_INPUT_WRITE,
 972                                            catch_input, children);
 973         gtk_widget_set_sensitive(children->input_hbox, FALSE);
 974 }
 975
 976 static gint delete_io_dialog_cb(GtkWidget *w, GdkEvent *e, gpointer data)
 977 {
 978         hide_io_dialog_cb(w, data);
 979         return TRUE;
 980 }
 981
 982 static void hide_io_dialog_cb(GtkWidget *w, gpointer data)
 983 {
 984
 985         Children *children = (Children *)data;
 986
 987         if (!children->nb) {
 988                 g_signal_handlers_disconnect_matched
 989                         (G_OBJECT(children->dialog), G_SIGNAL_MATCH_DATA,
 990                          0, 0, NULL, NULL, children);
 991                 gtk_widget_destroy(children->dialog);
 992                 free_children(children);
 993         }
 994 }
 995
 996 static gint io_dialog_key_pressed_cb(GtkWidget *widget, GdkEventKey *event,
 997                                      gpointer data)
 998 {
 999         if (event && event->keyval == GDK_Escape)
1000                 hide_io_dialog_cb(widget, data);
1001         return TRUE;
1002 }
1003
1004 static void childinfo_close_pipes(ChildInfo *child_info)
1005 {
1006         /* stdout and stderr pipes are guaranteed to be removed by
1007          * their handler, but in case where we receive child exit notification
1008          * before grand-child's pipes closing signals, we check them and close
1009          * them if necessary
1010          */
1011         if (child_info->tag_in > 0)
1012                 gdk_input_remove(child_info->tag_in);
1013         if (child_info->tag_out > 0)
1014                 gdk_input_remove(child_info->tag_out);
1015         if (child_info->tag_err > 0)
1016                 gdk_input_remove(child_info->tag_err);
1017
1018         if (child_info->chld_in >= 0)
1019                 close(child_info->chld_in);
1020         if (child_info->chld_out >= 0)
1021                 close(child_info->chld_out);
1022         if (child_info->chld_err >= 0)
1023                 close(child_info->chld_err);
1024
1025         close(child_info->chld_status);
1026 }
1027
1028 static void free_children(Children *children)
1029 {
1030         ChildInfo *child_info;
1031
1032         debug_print("Freeing children data %p\n", children);
1033
1034         g_free(children->action);
1035         while (children->list != NULL) {
1036                 child_info = (ChildInfo *)children->list->data;
1037                 g_free(child_info->cmd);
1038                 g_string_free(child_info->output, TRUE);
1039                 children->list = g_slist_remove(children->list, child_info);
1040                 g_free(child_info);
1041         }
1042         g_free(children);
1043 }
1044
1045 static void update_io_dialog(Children *children)
1046 {
1047         GSList *cur;
1048
1049         debug_print("Updating actions input/output dialog.\n");
1050
1051         if (children->progress_bar) {
1052                 gtk_progress_configure(GTK_PROGRESS(children->progress_bar),
1053                                 children->initial_nb -children->nb,
1054                                 0.0, children->initial_nb);
1055         }
1056
1057         if (!children->nb) {
1058                 gtk_widget_set_sensitive(children->abort_btn, FALSE);
1059                 gtk_widget_set_sensitive(children->close_btn, TRUE);
1060                 if (children->input_hbox)
1061                         gtk_widget_set_sensitive(children->input_hbox, FALSE);
1062                 gtk_widget_grab_focus(children->close_btn);
1063                 g_signal_connect(G_OBJECT(children->dialog),
1064                                  "key_press_event",
1065                                  G_CALLBACK(io_dialog_key_pressed_cb),
1066                                  children);
1067         }
1068
1069         if (children->output) {
1070                 GtkWidget *text = children->text;
1071                 gchar *caption;
1072                 ChildInfo *child_info;
1073                 GtkTextBuffer *textbuf;
1074                 GtkTextIter iter, start_iter, end_iter;
1075                 GdkFont *font;
1076
1077                 font = g_object_get_data(G_OBJECT(children->dialog),
1078                                          "s_txtfont");
1079                 gtk_widget_show(children->scrolledwin);
1080                 textbuf = gtk_text_view_get_buffer (GTK_TEXT_VIEW(text));
1081                 gtk_text_buffer_get_start_iter (textbuf, &start_iter);
1082                 gtk_text_buffer_get_end_iter (textbuf, &end_iter);
1083                 iter = start_iter;
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_buffer_insert(textbuf, &iter,
1096                                                caption, -1);
1097                         gtk_text_buffer_insert(textbuf, &iter,
1098                                                child_info->output->str, -1);
1099                         g_free(caption);
1100                         child_info->new_out = FALSE;
1101                 }
1102         }
1103 }
1104
1105 static void create_io_dialog(Children *children)
1106 {
1107         GtkWidget *dialog;
1108         GtkWidget *vbox;
1109         GtkWidget *entry = NULL;
1110         GtkWidget *input_hbox = NULL;
1111         GtkWidget *send_button;
1112         GtkWidget *label;
1113         GtkWidget *text;
1114         GtkWidget *scrolledwin;
1115         GtkWidget *hbox;
1116         GtkWidget *progress_bar = NULL;
1117         GtkWidget *abort_button;
1118         GtkWidget *close_button;
1119         GdkFont   *output_font;
1120
1121         debug_print("Creating action IO dialog\n");
1122
1123         dialog = gtk_dialog_new();
1124         gtk_container_set_border_width
1125                 (GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 5);
1126         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
1127         gtk_window_set_title(GTK_WINDOW(dialog), _("Action's input/output"));
1128         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
1129         manage_window_set_transient(GTK_WINDOW(dialog));
1130         g_signal_connect(G_OBJECT(dialog), "delete_event",
1131                          G_CALLBACK(delete_io_dialog_cb), children);
1132         g_signal_connect(G_OBJECT(dialog), "destroy",
1133                          G_CALLBACK(hide_io_dialog_cb),
1134                          children);
1135
1136         vbox = gtk_vbox_new(FALSE, 8);
1137         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), vbox);
1138         gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
1139         gtk_widget_show(vbox);
1140
1141         label = gtk_label_new(children->action);
1142         gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
1143         gtk_widget_show(label);
1144
1145         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
1146         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
1147                                        GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
1148         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
1149         gtk_widget_set_size_request(scrolledwin, 480, 200);
1150         gtk_widget_hide(scrolledwin);
1151
1152         text = gtk_text_view_new();
1153         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
1154         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
1155         gtk_widget_show(text);
1156
1157         if (children->open_in) {
1158                 input_hbox = gtk_hbox_new(FALSE, 8);
1159                 gtk_widget_show(input_hbox);
1160
1161                 entry = gtk_entry_new();
1162                 gtk_widget_set_size_request(entry, 320, -1);
1163                 g_signal_connect(G_OBJECT(entry), "activate",
1164                                  G_CALLBACK(send_input), children);
1165                 gtk_box_pack_start(GTK_BOX(input_hbox), entry, TRUE, TRUE, 0);
1166                 if (children->action_type & ACTION_USER_HIDDEN_IN)
1167                         gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE);
1168                 gtk_widget_show(entry);
1169
1170                 send_button = gtk_button_new_with_label(_(" Send "));
1171                 g_signal_connect(G_OBJECT(send_button), "clicked",
1172                                  G_CALLBACK(send_input), children);
1173                 gtk_box_pack_start(GTK_BOX(input_hbox), send_button, FALSE,
1174                                    FALSE, 0);
1175                 gtk_widget_show(send_button);
1176
1177                 gtk_box_pack_start(GTK_BOX(vbox), input_hbox, FALSE, FALSE, 0);
1178                 gtk_widget_grab_focus(entry);
1179         }
1180
1181         if (children->initial_nb > 1) {
1182                 progress_bar = gtk_progress_bar_new();
1183                 gtk_progress_bar_set_bar_style(GTK_PROGRESS_BAR(progress_bar),
1184                                 GTK_PROGRESS_CONTINUOUS);
1185                 gtk_progress_bar_set_orientation(GTK_PROGRESS_BAR(progress_bar),
1186                                 GTK_PROGRESS_LEFT_TO_RIGHT);
1187                 gtk_progress_set_activity_mode(GTK_PROGRESS(progress_bar),
1188                                 FALSE);
1189                 gtk_progress_set_format_string(GTK_PROGRESS(progress_bar),
1190                                 _("Completed %v/%u"));
1191                 gtk_progress_set_show_text(GTK_PROGRESS(progress_bar), TRUE);
1192                 gtk_progress_configure(GTK_PROGRESS(progress_bar),
1193                                 children->initial_nb -children->nb,
1194                                 0.0, children->initial_nb);
1195
1196                 gtk_box_pack_start(GTK_BOX(vbox), progress_bar, FALSE, FALSE, 0);
1197                 gtk_widget_show(progress_bar);
1198         }
1199
1200         gtkut_button_set_create(&hbox, &abort_button, _("Abort"),
1201                                 &close_button, _("Close"), NULL, NULL);
1202         g_signal_connect(G_OBJECT(abort_button), "clicked",
1203                          G_CALLBACK(kill_children_cb), children);
1204         g_signal_connect(G_OBJECT(close_button), "clicked",
1205                          G_CALLBACK(hide_io_dialog_cb), children);
1206         gtk_widget_show(hbox);
1207
1208         if (children->nb)
1209                 gtk_widget_set_sensitive(close_button, FALSE);
1210
1211         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), hbox);
1212
1213         children->dialog       = dialog;
1214         children->scrolledwin  = scrolledwin;
1215         children->text         = text;
1216         children->input_hbox   = children->open_in ? input_hbox : NULL;
1217         children->input_entry  = children->open_in ? entry : NULL;
1218         children->progress_bar = progress_bar;
1219         children->abort_btn    = abort_button;
1220         children->close_btn    = close_button;
1221
1222 #warning FIXME_GTK2 convert to Pango / FontDesc?
1223 #if 0
1224         output_font = gtkut_font_load_from_fontset(prefs_common.textfont);
1225         gtk_object_set_data_full(GTK_OBJECT(dialog), "s_txtfont",
1226                                  output_font,
1227                                  (GtkDestroyNotify)gdk_font_unref);
1228 #endif
1229         gtk_widget_show(dialog);
1230 }
1231
1232 static void catch_status(gpointer data, gint source, GdkInputCondition cond)
1233 {
1234         ChildInfo *child_info = (ChildInfo *)data;
1235         gchar buf;
1236         gint c;
1237
1238         gdk_input_remove(child_info->tag_status);
1239
1240         c = read(source, &buf, 1);
1241         debug_print("Child returned %c\n", buf);
1242
1243         waitpid(-child_info->pid, NULL, 0);
1244         childinfo_close_pipes(child_info);
1245         child_info->pid = 0;
1246
1247         wait_for_children(child_info->children);
1248 }
1249
1250 static void catch_input(gpointer data, gint source, GdkInputCondition cond)
1251 {
1252         Children *children = (Children *)data;
1253         ChildInfo *child_info = (ChildInfo *)children->list->data;
1254         gchar *input;
1255         gint c, count, len;
1256
1257         debug_print("Sending input to grand child.\n");
1258         if (!(cond && GDK_INPUT_WRITE))
1259                 return;
1260
1261         gdk_input_remove(child_info->tag_in);
1262         child_info->tag_in = -1;
1263
1264         input = gtk_editable_get_chars(GTK_EDITABLE(children->input_entry),
1265                                        0, -1);
1266         len = strlen(input);
1267         count = 0;
1268
1269         do {
1270                 c = write(child_info->chld_in, input + count, len - count);
1271                 if (c >= 0)
1272                         count += c;
1273         } while (c >= 0 && count < len);
1274
1275         if (c >= 0)
1276                 write(child_info->chld_in, "\n", 2);
1277
1278         g_free(input);
1279
1280         gtk_entry_set_text(GTK_ENTRY(children->input_entry), "");
1281         gtk_widget_set_sensitive(children->input_hbox, TRUE);
1282         close(child_info->chld_in);
1283         child_info->chld_in = -1;
1284         debug_print("Input to grand child sent.\n");
1285 }
1286
1287 static void catch_output(gpointer data, gint source, GdkInputCondition cond)
1288 {
1289         ChildInfo *child_info = (ChildInfo *)data;
1290         gint c, i;
1291         gchar buf[BUFFSIZE];
1292
1293         debug_print("Catching grand child's output.\n");
1294         if (child_info->children->action_type &
1295             (ACTION_PIPE_OUT | ACTION_INSERT)
1296             && source == child_info->chld_out) {
1297                 GtkTextView *text = GTK_TEXT_VIEW(child_info->children->msg_text);
1298                 GtkTextBuffer *textbuf = gtk_text_view_get_buffer(text);
1299                 GtkTextIter iter1, iter2;
1300                 GtkTextMark *mark;
1301
1302                 mark = gtk_text_buffer_get_insert(textbuf);
1303                 gtk_text_buffer_get_iter_at_mark(textbuf, &iter1, mark);
1304                 gtk_text_buffer_get_iter_at_mark(textbuf, &iter2, mark);
1305
1306                 while (TRUE) {
1307                         c = read(source, buf, sizeof(buf) - 1);
1308                         if (c == 0)
1309                                 break;
1310                         gtk_text_buffer_insert(textbuf, &iter2, buf, c);
1311                 }
1312                 if (child_info->children->is_selection) {
1313                         gtk_text_buffer_place_cursor(textbuf, &iter1);
1314                         gtk_text_buffer_move_mark_by_name
1315                                 (textbuf, "selection_bound", &iter2);
1316                 }
1317         } else {
1318                 c = read(source, buf, sizeof(buf) - 1);
1319                 for (i = 0; i < c; i++)
1320                         g_string_append_c(child_info->output, buf[i]);
1321                 if (c > 0)
1322                         child_info->new_out = TRUE;
1323         }
1324         if (c == 0) {
1325                 if (source == child_info->chld_out) {
1326                         gdk_input_remove(child_info->tag_out);
1327                         child_info->tag_out = -1;
1328                         close(child_info->chld_out);
1329                         child_info->chld_out = -1;
1330                 } else {
1331                         gdk_input_remove(child_info->tag_err);
1332                         child_info->tag_err = -1;
1333                         close(child_info->chld_err);
1334                         child_info->chld_err = -1;
1335                 }
1336         }
1337
1338         wait_for_children(child_info->children);
1339 }
1340
1341 static gchar *get_user_string(const gchar *action, ActionType type)
1342 {
1343         gchar *message;
1344         gchar *user_str = NULL;
1345
1346         switch (type) {
1347         case ACTION_USER_HIDDEN_STR:
1348                 message = g_strdup_printf
1349                         (_("Enter the argument for the following action:\n"
1350                            "(`%%h' will be replaced with the argument)\n"
1351                            "  %s"),
1352                          action);
1353                 user_str = input_dialog_with_invisible
1354                         (_("Action's hidden user argument"), message, NULL);
1355                 break;
1356         case ACTION_USER_STR:
1357                 message = g_strdup_printf
1358                         (_("Enter the argument for the following action:\n"
1359                            "(`%%u' will be replaced with the argument)\n"
1360                            "  %s"),
1361                          action);
1362                 user_str = input_dialog
1363                         (_("Action's user argument"), message, NULL);
1364                 break;
1365         default:
1366                 g_warning("Unsupported action type %d", type);
1367         }
1368
1369         return user_str;
1370 }