claws-mail/src/prefs_actions.c

/*
 * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
 * Copyright (C) 1999-2002 Hiroyuki Yamamoto
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
#  include "config.h"
#endif

#include "defs.h"

#include <glib.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include <gdk/gdkx.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <signal.h>
#include <unistd.h>

#include "intl.h"
#include "prefs_gtk.h"
#include "inc.h"
#include "utils.h"
#include "gtkutils.h"
#include "manage_window.h"
#include "mainwindow.h"
#include "prefs_common.h"
#include "alertpanel.h"
#include "prefs_actions.h"
#include "compose.h"
#include "procmsg.h"
#include "gtkstext.h"
#include "mimeview.h"
#include "textview.h"

typedef enum
{
	ACTION_NONE 	= 1 << 0,
	ACTION_PIPE_IN	= 1 << 1,
	ACTION_PIPE_OUT	= 1 << 2,
	ACTION_SINGLE	= 1 << 3,
	ACTION_MULTIPLE	= 1 << 4,
	ACTION_ASYNC 	= 1 << 5,
	ACTION_OPEN_IN	= 1 << 6,
	ACTION_HIDE_IN	= 1 << 7,
	ACTION_INSERT   = 1 << 8,
	ACTION_ERROR 	= 1 << 9,
} ActionType;

static struct Actions
{
	GtkWidget *window;

	GtkWidget *ok_btn;

	GtkWidget *name_entry;
	GtkWidget *cmd_entry;

	GtkWidget *actions_clist;
} actions;

typedef struct _Children Children;
typedef struct _ChildInfo ChildInfo;

struct _Children
{
	GtkWidget	*window;
	GtkWidget	*dialog;
	GtkWidget	*text;
	GtkWidget	*input_entry;
	GtkWidget	*input_hbox;
	GtkWidget	*abort_btn;
	GtkWidget	*close_btn;
	GtkWidget	*scrolledwin;

	gchar		*action;
	GSList		*list;
	gint		 nb;
	gint		 open_in;
	gboolean	 output;
};

struct _ChildInfo
{
	Children	*children;
	gchar		*cmd;
	guint		 type;
	pid_t		 pid;
	gint		 chld_in;
	gint		 chld_out;
	gint		 chld_err;
	gint		 chld_status;
	gint		 tag_in;
	gint		 tag_out;
	gint		 tag_err;
	gint		 tag_status;
	gint		 new_out;
	GString		*output;
	GtkWidget	*text;
	GdkFont		*msgfont;
};

/* widget creating functions */
static void prefs_actions_create	(MainWindow *mainwin);
static void prefs_actions_set_dialog	(void);
static gint prefs_actions_clist_set_row	(gint row);

/* callback functions */
static void prefs_actions_help_cb	(GtkWidget	*w,
					 gpointer	 data);
static void prefs_actions_register_cb	(GtkWidget	*w,
					 gpointer	 data);
static void prefs_actions_substitute_cb	(GtkWidget	*w,
					 gpointer	 data);
static void prefs_actions_delete_cb	(GtkWidget	*w,
					 gpointer	 data);
static void prefs_actions_up		(GtkWidget	*w,
					 gpointer	 data);
static void prefs_actions_down		(GtkWidget	*w,
					 gpointer	 data);
static void prefs_actions_select	(GtkCList	*clist,
					 gint		 row,
					 gint		 column,
					 GdkEvent	*event);
static void prefs_actions_row_move	(GtkCList	*clist,
					 gint		 source_row,
					 gint		 dest_row);
static gint prefs_actions_deleted	(GtkWidget	*widget,
					 GdkEventAny	*event,
					 gpointer	*data);
static void prefs_actions_key_pressed	(GtkWidget	*widget,
					 GdkEventKey	*event,
					 gpointer	 data);
static void prefs_actions_cancel	(GtkWidget	*w,
					 gpointer	 data);
static void prefs_actions_ok		(GtkWidget	*w,
					 gpointer	 data);
static void update_actions_menu		(GtkItemFactory	*ifactory,
					 gchar		*branch_path,
					 gpointer	 callback,
					 gpointer	 data);
static void mainwin_actions_execute_cb 	(MainWindow	*mainwin,
					 guint		 action_nb,
					 GtkWidget 	*widget);
static void compose_actions_execute_cb	(Compose	*compose,
					 guint		 action_nb,
					 GtkWidget	*widget);
static guint get_action_type		(gchar		*action);

static gboolean execute_actions		(gchar		*action, 
					 GtkWidget	*window,
					 GtkCTree	*ctree, 
					 GtkWidget	*text,
					 GdkFont 	*msgfont,
					 gint		 body_pos,
					 MimeView	*mimeview);

static gchar *parse_action_cmd		(gchar		*action,
					 MsgInfo	*msginfo,
					 GtkCTree	*ctree,
					 MimeView	*mimeview);
static gboolean parse_append_filename	(GString	**cmd,
					 MsgInfo	*msginfo);

static gboolean parse_append_msgpart	(GString	**cmd,
					 MsgInfo	*msginfo,
					 MimeView	*mimeview);

ChildInfo *fork_child			(gchar		*cmd,
					 gint		 action_type,
					 GtkWidget	*text,
					 GdkFont 	*msgfont,
					 gint            body_pos,
					 Children	*children);

static gint wait_for_children		(gpointer	 data);

static void free_children		(Children	*children);

static void childinfo_close_pipes	(ChildInfo	*child_info);

static void create_io_dialog		(Children	*children);
static void update_io_dialog		(Children	*children);

static void hide_io_dialog_cb		(GtkWidget	*widget,
					 gpointer	 data);

static void catch_output		(gpointer		 data,
					 gint			 source,
					 GdkInputCondition	 cond);
static void catch_input			(gpointer		 data, 
					 gint			 source,
					 GdkInputCondition	 cond);
static void catch_status		(gpointer		 data,
					 gint			 source,
					 GdkInputCondition	 cond);

void prefs_actions_open(MainWindow *mainwin)
{
#if 0
	if (prefs_rc_is_readonly(ACTIONS_RC))
		return;
#endif
	inc_lock();

	if (!actions.window)
		prefs_actions_create(mainwin);

	manage_window_set_transient(GTK_WINDOW(actions.window));
	gtk_widget_grab_focus(actions.ok_btn);

	prefs_actions_set_dialog();

	gtk_widget_show(actions.window);
}

static void prefs_actions_create(MainWindow *mainwin)
{
	GtkWidget *window;
	GtkWidget *vbox;
	GtkWidget *ok_btn;
	GtkWidget *cancel_btn;
	GtkWidget *confirm_area;

	GtkWidget *vbox1;

	GtkWidget *entry_vbox;
	GtkWidget *hbox;
	GtkWidget *name_label;
	GtkWidget *name_entry;
	GtkWidget *cmd_label;
	GtkWidget *cmd_entry;

	GtkWidget *reg_hbox;
	GtkWidget *btn_hbox;
	GtkWidget *arrow;
	GtkWidget *reg_btn;
	GtkWidget *subst_btn;
	GtkWidget *del_btn;

	GtkWidget *cond_hbox;
	GtkWidget *cond_scrolledwin;
	GtkWidget *cond_clist;

	GtkWidget *help_vbox;
	GtkWidget *help_label;
	GtkWidget *help_toggle;

	GtkWidget *btn_vbox;
	GtkWidget *up_btn;
	GtkWidget *down_btn;

	gchar *title[1];

	debug_print("Creating actions configuration window...\n");

	window = gtk_window_new (GTK_WINDOW_DIALOG);

	gtk_container_set_border_width(GTK_CONTAINER (window), 8);
	gtk_window_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
	gtk_window_set_modal(GTK_WINDOW(window), TRUE);
	gtk_window_set_policy(GTK_WINDOW(window), FALSE, TRUE, TRUE);
	gtk_window_set_default_size(GTK_WINDOW(window), 400, -1);

	vbox = gtk_vbox_new(FALSE, 6);
	gtk_widget_show(vbox);
	gtk_container_add(GTK_CONTAINER(window), vbox);

	gtkut_button_set_create(&confirm_area, &ok_btn, _("OK"),
				&cancel_btn, _("Cancel"), NULL, NULL);
	gtk_widget_show(confirm_area);
	gtk_box_pack_end(GTK_BOX(vbox), confirm_area, FALSE, FALSE, 0);
	gtk_widget_grab_default(ok_btn);

	gtk_window_set_title(GTK_WINDOW(window), _("Actions configuration"));
	gtk_signal_connect(GTK_OBJECT(window), "delete_event",
			   GTK_SIGNAL_FUNC(prefs_actions_deleted), NULL);
	gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
			   GTK_SIGNAL_FUNC(prefs_actions_key_pressed), NULL);
	MANAGE_WINDOW_SIGNALS_CONNECT(window);
	gtk_signal_connect(GTK_OBJECT(ok_btn), "clicked",
			   GTK_SIGNAL_FUNC(prefs_actions_ok), mainwin);
	gtk_signal_connect(GTK_OBJECT(cancel_btn), "clicked",
			   GTK_SIGNAL_FUNC(prefs_actions_cancel), NULL);

	vbox1 = gtk_vbox_new(FALSE, 8);
	gtk_widget_show(vbox1);
	gtk_box_pack_start(GTK_BOX(vbox), vbox1, TRUE, TRUE, 0);
	gtk_container_set_border_width(GTK_CONTAINER(vbox1), 2);

	entry_vbox = gtk_vbox_new(FALSE, 4);
	gtk_box_pack_start(GTK_BOX(vbox1), entry_vbox, FALSE, FALSE, 0);

	hbox = gtk_hbox_new(FALSE, 8);
	gtk_box_pack_start(GTK_BOX(entry_vbox), hbox, FALSE, FALSE, 0);

	name_label = gtk_label_new(_("Menu name:"));
	gtk_box_pack_start(GTK_BOX(hbox), name_label, FALSE, FALSE, 0);

	name_entry = gtk_entry_new();
	gtk_box_pack_start(GTK_BOX(hbox), name_entry, TRUE, TRUE, 0);

	hbox = gtk_hbox_new(FALSE, 8);
	gtk_box_pack_start(GTK_BOX(entry_vbox), hbox, TRUE, TRUE, 0);

	cmd_label = gtk_label_new(_("Command line:"));
	gtk_box_pack_start(GTK_BOX(hbox), cmd_label, FALSE, FALSE, 0);

	cmd_entry = gtk_entry_new();
	gtk_box_pack_start(GTK_BOX(hbox), cmd_entry, TRUE, TRUE, 0);

	gtk_widget_show_all(entry_vbox);

	help_vbox = gtk_vbox_new(FALSE, 8);
	gtk_box_pack_start(GTK_BOX(vbox1), help_vbox, FALSE, FALSE, 0);

	help_label = gtk_label_new
		(_("Menu name:\n"
		   " Use / in menu name to make submenus.\n"
		   "Command line:\n"
		   " Begin with:\n"
		   "   | to send message body or selection to command\n"
		   "   > to send user provided text to command\n"
		   "   * to send user provided hidden text to command\n"
		   " End with:\n"
		   "   | to replace message body or selection with command output\n"
		   "   > to insert command's output without replacing old text\n"
		   "   & to run command asynchronously\n"
		   " Use %f for message file name\n"
		   "   %F for the list of the file names of selected messages\n"
		   "   %p for the selected message MIME part."));
	gtk_misc_set_alignment(GTK_MISC(help_label), 0, 0.5);
	gtk_label_set_justify(GTK_LABEL(help_label), GTK_JUSTIFY_LEFT);
	gtk_widget_show(help_label);
	gtk_box_pack_start(GTK_BOX(help_vbox), help_label, FALSE, FALSE, 0);
	gtk_widget_hide(help_vbox);

	/* register / substitute / delete */

	reg_hbox = gtk_hbox_new(FALSE, 4);
	gtk_widget_show(reg_hbox);
	gtk_box_pack_start(GTK_BOX(vbox1), reg_hbox, FALSE, FALSE, 0);

	arrow = gtk_arrow_new(GTK_ARROW_DOWN, GTK_SHADOW_OUT);
	gtk_widget_show(arrow);
	gtk_box_pack_start(GTK_BOX(reg_hbox), arrow, FALSE, FALSE, 0);
	gtk_widget_set_usize(arrow, -1, 16);

	btn_hbox = gtk_hbox_new(TRUE, 4);
	gtk_widget_show(btn_hbox);
	gtk_box_pack_start(GTK_BOX(reg_hbox), btn_hbox, FALSE, FALSE, 0);

	reg_btn = gtk_button_new_with_label(_("Add"));
	gtk_widget_show(reg_btn);
	gtk_box_pack_start(GTK_BOX(btn_hbox), reg_btn, FALSE, TRUE, 0);
	gtk_signal_connect(GTK_OBJECT(reg_btn), "clicked",
			   GTK_SIGNAL_FUNC(prefs_actions_register_cb), NULL);

	subst_btn = gtk_button_new_with_label(_("  Replace  "));
	gtk_widget_show(subst_btn);
	gtk_box_pack_start(GTK_BOX(btn_hbox), subst_btn, FALSE, TRUE, 0);
	gtk_signal_connect(GTK_OBJECT(subst_btn), "clicked",
			   GTK_SIGNAL_FUNC(prefs_actions_substitute_cb),
			   NULL);

	del_btn = gtk_button_new_with_label(_("Delete"));
	gtk_widget_show(del_btn);
	gtk_box_pack_start(GTK_BOX(btn_hbox), del_btn, FALSE, TRUE, 0);
	gtk_signal_connect(GTK_OBJECT(del_btn), "clicked",
			   GTK_SIGNAL_FUNC(prefs_actions_delete_cb), NULL);

	help_toggle = gtk_toggle_button_new_with_label(_(" Syntax help "));
	gtk_widget_show(help_toggle);
	gtk_box_pack_end(GTK_BOX(reg_hbox), help_toggle, FALSE, FALSE, 0);
	gtk_signal_connect(GTK_OBJECT(help_toggle), "toggled",
			   GTK_SIGNAL_FUNC(prefs_actions_help_cb), help_vbox);

	cond_hbox = gtk_hbox_new(FALSE, 8);
	gtk_widget_show(cond_hbox);
	gtk_box_pack_start(GTK_BOX(vbox1), cond_hbox, TRUE, TRUE, 0);

	cond_scrolledwin = gtk_scrolled_window_new(NULL, NULL);
	gtk_widget_show(cond_scrolledwin);
	gtk_widget_set_usize(cond_scrolledwin, -1, 150);
	gtk_box_pack_start(GTK_BOX(cond_hbox), cond_scrolledwin,
			   TRUE, TRUE, 0);
	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW (cond_scrolledwin),
				       GTK_POLICY_AUTOMATIC,
				       GTK_POLICY_AUTOMATIC);

	title[0] = _("Current actions");
	cond_clist = gtk_clist_new_with_titles(1, title);
	gtk_widget_show(cond_clist);
	gtk_container_add(GTK_CONTAINER (cond_scrolledwin), cond_clist);
	gtk_clist_set_column_width(GTK_CLIST (cond_clist), 0, 80);
	gtk_clist_set_selection_mode(GTK_CLIST (cond_clist),
				     GTK_SELECTION_BROWSE);
	GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(cond_clist)->column[0].button,
			       GTK_CAN_FOCUS);
	gtk_signal_connect(GTK_OBJECT(cond_clist), "select_row",
			   GTK_SIGNAL_FUNC(prefs_actions_select), NULL);
	gtk_signal_connect_after(GTK_OBJECT(cond_clist), "row_move",
				 GTK_SIGNAL_FUNC(prefs_actions_row_move),
				 NULL);

	btn_vbox = gtk_vbox_new(FALSE, 8);
	gtk_widget_show(btn_vbox);
	gtk_box_pack_start(GTK_BOX(cond_hbox), btn_vbox, FALSE, FALSE, 0);

	up_btn = gtk_button_new_with_label(_("Up"));
	gtk_widget_show(up_btn);
	gtk_box_pack_start(GTK_BOX(btn_vbox), up_btn, FALSE, FALSE, 0);
	gtk_signal_connect(GTK_OBJECT(up_btn), "clicked",
			   GTK_SIGNAL_FUNC(prefs_actions_up), NULL);

	down_btn = gtk_button_new_with_label(_("Down"));
	gtk_widget_show(down_btn);
	gtk_box_pack_start(GTK_BOX(btn_vbox), down_btn, FALSE, FALSE, 0);
	gtk_signal_connect(GTK_OBJECT(down_btn), "clicked",
			   GTK_SIGNAL_FUNC(prefs_actions_down), NULL);

	gtk_widget_show(window);

	actions.window = window;
	actions.ok_btn = ok_btn;

	actions.name_entry = name_entry;
	actions.cmd_entry  = cmd_entry;

	actions.actions_clist = cond_clist;
}

static void prefs_actions_help_cb(GtkWidget *w, gpointer data)
{
	if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w)))
		gtk_widget_show(GTK_WIDGET(data));
	else
		gtk_widget_hide(GTK_WIDGET(data));
}

void prefs_actions_read_config(void)
{
	gchar *rcpath;
	FILE *fp;
	gchar buf[PREFSBUFSIZE];
	gchar *act;

	debug_print("Reading actions configurations...\n");

	rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, ACTIONS_RC, NULL);
	if ((fp = fopen(rcpath, "rb")) == NULL) {
		if (ENOENT != errno) FILE_OP_ERROR(rcpath, "fopen");
		g_free(rcpath);
		return;
	}
	g_free(rcpath);

	while (prefs_common.actions_list != NULL) {
		act = (gchar *)prefs_common.actions_list->data;
		prefs_common.actions_list =
			g_slist_remove(prefs_common.actions_list, act);
		g_free(act);
	}

	while (fgets(buf, sizeof(buf), fp) != NULL) {
		g_strchomp(buf);
		act = strstr(buf, ": ");
		if (act && act[2] && 
		    get_action_type(&act[2]) != ACTION_ERROR)
			prefs_common.actions_list =
				g_slist_append(prefs_common.actions_list,
					       g_strdup(buf));
	}
	fclose(fp);
}

void prefs_actions_write_config(void)
{
	gchar *rcpath;
	PrefFile *pfile;
	GSList *cur;

	debug_print("Writing actions configuration...\n");

	rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, ACTIONS_RC, NULL);
	if ((pfile= prefs_write_open(rcpath)) == NULL) {
		g_warning("failed to write configuration to file\n");
		g_free(rcpath);
		return;
	}

	for (cur = prefs_common.actions_list; cur != NULL; cur = cur->next) {
		gchar *act = (gchar *)cur->data;
		if (fputs(act, pfile->fp) == EOF ||
		    fputc('\n', pfile->fp) == EOF) {
			FILE_OP_ERROR(rcpath, "fputs || fputc");
			prefs_write_close_revert(pfile);
			g_free(rcpath);
			return;
		}
	}
	
	g_free(rcpath);

	if (prefs_write_close(pfile) < 0) {
		g_warning("failed to write configuration to file\n");
		return;
	}
}

static guint get_action_type(gchar *action)
{
	gchar *p;
	guint action_type = ACTION_NONE;

	g_return_val_if_fail(action,  ACTION_ERROR);
	g_return_val_if_fail(*action, ACTION_ERROR);

	p = action;

	if (p[0] == '|') {
		action_type |= ACTION_PIPE_IN;
		p++;
	} else if (p[0] == '>') {
		action_type |= ACTION_OPEN_IN;
		p++;
	} else if (p[0] == '*') {
		action_type |= ACTION_HIDE_IN;
		p++;
	}

	if (p[0] == 0x00)
		return ACTION_ERROR;

	while (*p && action_type != ACTION_ERROR) {
		if (p[0] == '%') {
			switch (p[1]) {
			case 'f':
				action_type |= ACTION_SINGLE;
				break;
			case 'F':
				action_type |= ACTION_MULTIPLE;
				break;
			case 'p':
				action_type |= ACTION_SINGLE;
				break;
			default:
				action_type = ACTION_ERROR;
				break;
			}
		} else if (p[0] == '|') {
			if (p[1] == 0x00)
				action_type |= ACTION_PIPE_OUT;
		} else if (p[0] == '>') {
			if (p[1] == 0x00)
				action_type |= ACTION_INSERT;
		} else if (p[0] == '&') {
			if (p[1] == 0x00)
				action_type |= ACTION_ASYNC;
			else
				action_type = ACTION_ERROR;
		}
		p++;
	}

	return action_type;
}

static gchar *parse_action_cmd(gchar *action, MsgInfo *msginfo,
			       GtkCTree *ctree, MimeView *mimeview)
{
	GString *cmd;
	gchar *p;
	GList *cur;
	MsgInfo *msg;
	
	p = action;
	
	if (p[0] == '|' || p[0] == '>' || p[0] == '*')
		p++;

	cmd = g_string_sized_new(strlen(action));

	while (p[0] &&
	       !((p[0] == '|' || p[0] == '>' || p[0] == '&') && !p[1])) {
		if (p[0] == '%' && p[1]) {
			switch (p[1]) {
			case 'f':
				if (!parse_append_filename(&cmd, msginfo)) {
					g_string_free(cmd, TRUE);
					return NULL;
				}
				p++;
				break;
			case 'F':
				for (cur = GTK_CLIST(ctree)->selection;
				     cur != NULL; cur = cur->next) {
					msg = gtk_ctree_node_get_row_data(ctree,
					      GTK_CTREE_NODE(cur->data));
					if (!parse_append_filename(&cmd, msg)) {
						g_string_free(cmd, TRUE);
						return NULL;
					}
					if (cur->next)
						cmd = g_string_append_c(cmd, ' ');
				}
				p++;
				break;
			case 'p':
				if (!parse_append_msgpart(&cmd, msginfo,
							  mimeview)) {
					g_string_free(cmd, TRUE);
					return NULL;
				}
				p++;
				break;
			default:
				cmd = g_string_append_c(cmd, p[0]);
				cmd = g_string_append_c(cmd, p[1]);
				p++;
			}
		} else {
			cmd = g_string_append_c(cmd, p[0]);
		}
		p++;
	}
	if (cmd->len == 0) {
		g_string_free(cmd, TRUE);
		return NULL;
	}

	p = cmd->str;
	g_string_free(cmd, FALSE);
	return p;
}

static gboolean parse_append_filename(GString **cmd, MsgInfo *msginfo)
{
	gchar *filename;

	g_return_val_if_fail(msginfo, FALSE);

	filename = procmsg_get_message_file(msginfo);

	if (filename) {
		*cmd = g_string_append(*cmd, filename);
		g_free(filename);
	} else {
		alertpanel_error(_("Could not get message file %d"),
				msginfo->msgnum);
		return FALSE;
	}

	return TRUE;
}

static gboolean parse_append_msgpart(GString **cmd, MsgInfo *msginfo,
				     MimeView *mimeview)
{
	gchar    *filename;
	gchar    *partname;
	MimeInfo *partinfo;
	gint      ret;
	FILE     *fp;

	if (!mimeview) {
#if USE_GPGME
		if ((fp = procmsg_open_message_decrypted(msginfo, &partinfo))
		    == NULL) {
			alertpanel_error(_("Could not get message file."));
			return FALSE;
		}
#else
		if ((fp = procmsg_open_message(msginfo)) == NULL) {
			alertpanel_error(_("Could not get message file."));
			return FALSE;
		}
		partinfo = procmime_scan_mime_header(fp);
#endif
		fclose(fp);
		if (!partinfo) {
			procmime_mimeinfo_free_all(partinfo);
			alertpanel_error(_("Could not get message part."));
			return FALSE;
		}
		filename = procmsg_get_message_file(msginfo);
	} else {
		if (!mimeview->opened) {
			alertpanel_error(_("No message part selected."));
			return FALSE;
		}
		if (!mimeview->file) {
			alertpanel_error(_("No message file selected."));
			return FALSE;
		}
		partinfo = gtk_ctree_node_get_row_data
				(GTK_CTREE(mimeview->ctree),
				 mimeview->opened);
		g_return_val_if_fail(partinfo != NULL, FALSE);
		filename = mimeview->file;
	}
	partname = procmime_get_tmp_file_name(partinfo);

	ret = procmime_get_part(partname, filename, partinfo); 

	if (!mimeview) {
		procmime_mimeinfo_free_all(partinfo);
		g_free(filename);
	}

	if (ret < 0) {
		alertpanel_error(_("Can't get part of multipart message"));
		g_free(partname);
		return FALSE;
	}

	*cmd = g_string_append(*cmd, partname);

	g_free(partname);

	return TRUE;
}

static void prefs_actions_set_dialog(void)
{
	GtkCList *clist = GTK_CLIST(actions.actions_clist);
	GSList *cur;
	gchar *action_str[1];
	gint row;

	gtk_clist_freeze(clist);
	gtk_clist_clear(clist);

	action_str[0] = _("(New)");
	row = gtk_clist_append(clist, action_str);
	gtk_clist_set_row_data(clist, row, NULL);

	for (cur = prefs_common.actions_list; cur != NULL; cur = cur->next) {
		gchar *action[1];

		action[0] = (gchar *)cur->data;
		row = gtk_clist_append(clist, action);
		gtk_clist_set_row_data(clist, row, action[0]);
	}

	gtk_clist_thaw(clist);
}

static void prefs_actions_set_list(void)
{
	gint row = 1;
	gchar *action;

	g_slist_free(prefs_common.actions_list);
	prefs_common.actions_list = NULL;

	while ((action = (gchar *)gtk_clist_get_row_data
		(GTK_CLIST(actions.actions_clist), row)) != NULL) {
		prefs_common.actions_list =
			g_slist_append(prefs_common.actions_list, action);
		row++;
	}
}

#define GET_ENTRY(entry) \
	entry_text = gtk_entry_get_text(GTK_ENTRY(entry))

static gint prefs_actions_clist_set_row(gint row)
{
	GtkCList *clist = GTK_CLIST(actions.actions_clist);
	gchar *entry_text;
	gint len;
	gchar action[PREFSBUFSIZE];
	gchar *buf[1];

	g_return_val_if_fail(row != 0, -1);

	GET_ENTRY(actions.name_entry);
	if (entry_text[0] == '\0') {
		alertpanel_error(_("Menu name is not set."));
		return -1;
	}

	if (strchr(entry_text, ':')) {
		alertpanel_error(_("Colon ':' is not allowed in the menu name."));
		return -1;
	}

	strncpy(action, entry_text, PREFSBUFSIZE - 1);
	g_strstrip(action);

	/* Keep space for the ': ' delimiter */
	len = strlen(action) + 2;
	if (len >= PREFSBUFSIZE - 1) {
		alertpanel_error(_("Menu name is too long."));
		return -1;
	}

	strcat(action, ": ");

	GET_ENTRY(actions.cmd_entry);

	if (entry_text[0] == '\0') {
		alertpanel_error(_("Command line not set."));
		return -1;
	}

	if (len + strlen(entry_text) >= PREFSBUFSIZE - 1) {
		alertpanel_error(_("Menu name and command are too long."));
		return -1;
	}

	if (get_action_type(entry_text) == ACTION_ERROR) {
		alertpanel_error(_("The command\n%s\nhas a syntax error."), 
				 entry_text);
		return -1;
	}

	strcat(action, entry_text);

	buf[0] = action;
	if (row < 0)
		row = gtk_clist_append(clist, buf);
	else {
		gchar *old_action;
		gtk_clist_set_text(clist, row, 0, action);
		old_action = (gchar *) gtk_clist_get_row_data(clist, row);
		if (old_action)
			g_free(old_action);
	}

	buf[0] = g_strdup(action);

	gtk_clist_set_row_data(clist, row, buf[0]);

	prefs_actions_set_list();

	return 0;
}

/* callback functions */

static void prefs_actions_register_cb(GtkWidget *w, gpointer data)
{
	prefs_actions_clist_set_row(-1);
}

static void prefs_actions_substitute_cb(GtkWidget *w, gpointer data)
{
	GtkCList *clist = GTK_CLIST(actions.actions_clist);
	gchar *action;
	gint row;

	if (!clist->selection) return;

	row = GPOINTER_TO_INT(clist->selection->data);
	if (row == 0) return;

	action = gtk_clist_get_row_data(clist, row);
	if (!action) return;

	prefs_actions_clist_set_row(row);
}

static void prefs_actions_delete_cb(GtkWidget *w, gpointer data)
{
	GtkCList *clist = GTK_CLIST(actions.actions_clist);
	gchar *action;
	gint row;

	if (!clist->selection) return;
	row = GPOINTER_TO_INT(clist->selection->data);
	if (row == 0) return;

	if (alertpanel(_("Delete action"),
		       _("Do you really want to delete this action?"),
		       _("Yes"), _("No"), NULL) == G_ALERTALTERNATE)
		return;

	action = gtk_clist_get_row_data(clist, row);
	g_free(action);
	gtk_clist_remove(clist, row);
	prefs_common.actions_list = g_slist_remove(prefs_common.actions_list,
						   action);
}

static void prefs_actions_up(GtkWidget *w, gpointer data)
{
	GtkCList *clist = GTK_CLIST(actions.actions_clist);
	gint row;

	if (!clist->selection) return;

	row = GPOINTER_TO_INT(clist->selection->data);
	if (row > 1)
		gtk_clist_row_move(clist, row, row - 1);
}

static void prefs_actions_down(GtkWidget *w, gpointer data)
{
	GtkCList *clist = GTK_CLIST(actions.actions_clist);
	gint row;

	if (!clist->selection) return;

	row = GPOINTER_TO_INT(clist->selection->data);
	if (row > 0 && row < clist->rows - 1)
		gtk_clist_row_move(clist, row, row + 1);
}

#define ENTRY_SET_TEXT(entry, str) \
	gtk_entry_set_text(GTK_ENTRY(entry), str ? str : "")

static void prefs_actions_select(GtkCList *clist, gint row, gint column,
				 GdkEvent *event)
{
	gchar *action;
	gchar *cmd;
	gchar buf[PREFSBUFSIZE];
	action = gtk_clist_get_row_data(clist, row);

	if (!action) {
		ENTRY_SET_TEXT(actions.name_entry, "");
		ENTRY_SET_TEXT(actions.cmd_entry, "");
		return;
	}

	strncpy(buf, action, PREFSBUFSIZE - 1);
	buf[PREFSBUFSIZE - 1] = 0x00;
	cmd = strstr(buf, ": ");

	if (cmd && cmd[2])
		ENTRY_SET_TEXT(actions.cmd_entry, &cmd[2]);
	else
		return;

	*cmd = 0x00;
	ENTRY_SET_TEXT(actions.name_entry, buf);
}

static void prefs_actions_row_move(GtkCList *clist,
				   gint source_row, gint dest_row)
{
	prefs_actions_set_list();
	if (gtk_clist_row_is_visible(clist, dest_row) != GTK_VISIBILITY_FULL) {
		gtk_clist_moveto(clist, dest_row, -1,
				 source_row < dest_row ? 1.0 : 0.0, 0.0);
	}
}

static gint prefs_actions_deleted(GtkWidget *widget, GdkEventAny *event,
				  gpointer *data)
{
	prefs_actions_cancel(widget, data);
	return TRUE;
}

static void prefs_actions_key_pressed(GtkWidget *widget, GdkEventKey *event,
				      gpointer data)
{
	if (event && event->keyval == GDK_Escape)
		prefs_actions_cancel(widget, data);
}

static void prefs_actions_cancel(GtkWidget *w, gpointer data)
{
	prefs_actions_read_config();
	gtk_widget_hide(actions.window);
	inc_unlock();
}

static void prefs_actions_ok(GtkWidget *widget, gpointer data)
{
	GtkItemFactory *ifactory;
	MainWindow *mainwin = (MainWindow *)data;

	prefs_actions_write_config();
	ifactory = gtk_item_factory_from_widget(mainwin->menubar);
	update_mainwin_actions_menu(ifactory, mainwin);
	gtk_widget_hide(actions.window);
	inc_unlock();
}

void update_mainwin_actions_menu(GtkItemFactory *ifactory,
				 MainWindow *mainwin)
{
	update_actions_menu(ifactory, "/Tools/Actions",
			    mainwin_actions_execute_cb,
			    mainwin);
}

void update_compose_actions_menu(GtkItemFactory *ifactory,
				 gchar *branch_path,
				 Compose *compose)
{
	update_actions_menu(ifactory, branch_path,
			    compose_actions_execute_cb,
			    compose);
}

void actions_execute(gpointer data, 
		     guint action_nb,
		     GtkWidget *widget,
		     gint source)
{
	if (source == TOOLBAR_MAIN) 
		mainwin_actions_execute_cb((MainWindow*)data, action_nb, widget);

	else if (source == TOOLBAR_COMPOSE)
		compose_actions_execute_cb((Compose*)data, action_nb, widget);
}


static void update_actions_menu(GtkItemFactory *ifactory,
				gchar *branch_path,
				gpointer callback,
				gpointer data)
{
	GtkWidget *menuitem;
	gchar *menu_path;
	GSList *cur;
	gchar *action, *action_p;
	GList *amenu;
	GtkItemFactoryEntry ifentry = {NULL, NULL, NULL, 0, "<Branch>"};

	ifentry.path = branch_path;
	menuitem = gtk_item_factory_get_widget(ifactory, branch_path);
	g_return_if_fail(menuitem != NULL);

	amenu = GTK_MENU_SHELL(menuitem)->children;
	while (amenu != NULL) {
		GList *alist = amenu->next;
		gtk_widget_destroy(GTK_WIDGET(amenu->data));
		amenu = alist;
	}

	ifentry.accelerator     = NULL;
	ifentry.callback_action = 0;
	ifentry.callback        = callback;
	ifentry.item_type       = NULL;

	for (cur = prefs_common.actions_list; cur; cur = cur->next) {
		action   = g_strdup((gchar *)cur->data);
		action_p = strstr(action, ": ");
		if (action_p && action_p[2] &&
		    get_action_type(&action_p[2]) != ACTION_ERROR) {
			action_p[0] = 0x00;
			menu_path = g_strdup_printf("%s/%s", branch_path,
						    action);
			ifentry.path = menu_path;
			gtk_item_factory_create_item(ifactory, &ifentry, data,
						     1);
			g_free(menu_path);
		}
		g_free(action);
		ifentry.callback_action++;
	}
}

static void compose_actions_execute_cb(Compose *compose, guint action_nb,
				       GtkWidget *widget)
{
	gchar *buf, *action;
	guint action_type;

	g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));

	buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
	g_return_if_fail(buf != NULL);
	action = strstr(buf, ": ");
	g_return_if_fail(action != NULL);

	/* Point to the beginning of the command-line */
	action += 2;

	action_type = get_action_type(action);
	if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE)) {
		alertpanel_warning
			(_("The selected action cannot be used in the compose window\n"
			   "because it contains %%f, %%F or %%p."));
		return;
	}

	execute_actions(action, compose->window, NULL, compose->text, NULL, 0,
			NULL);
}

static void mainwin_actions_execute_cb(MainWindow *mainwin, guint action_nb,
				       GtkWidget *widget)
{
	MessageView *messageview = mainwin->messageview;
	TextView    *textview = NULL;
	gchar 	    *buf,
		    *action;
	MimeView    *mimeview = NULL;

	g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));

	buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);

	g_return_if_fail(buf);
	g_return_if_fail(action = strstr(buf, ": "));

	/* Point to the beginning of the command-line */
	action += 2;

	switch (messageview->type) {
	case MVIEW_TEXT:
		if (messageview->textview && messageview->textview->text)
			textview = messageview->textview;
		break;
	case MVIEW_MIME:
		if (messageview->mimeview) {
			mimeview = messageview->mimeview;
			if (messageview->mimeview->type == MIMEVIEW_TEXT &&
					messageview->mimeview->textview &&
					messageview->mimeview->textview->text)
				textview = messageview->mimeview->textview;
		} 
		break;
	}

	execute_actions(action, mainwin->window,
			GTK_CTREE(mainwin->summaryview->ctree), textview->text,
			textview->msgfont, textview->body_pos, mimeview);
}

static gboolean execute_actions(gchar *action, GtkWidget *window,
				GtkCTree *ctree, GtkWidget *text, 
				GdkFont *msgfont, gint body_pos,
				MimeView *mimeview)
{
	GList *cur, *selection = NULL;
	GSList *children_list = NULL;
	gint is_ok  = TRUE;
	gint selection_len = 0;
	Children *children;
	ChildInfo *child_info;
	gint action_type;
	MsgInfo *msginfo;
	gchar *cmd;

	g_return_val_if_fail(action && *action, FALSE);

	action_type = get_action_type(action);

	if (action_type == ACTION_ERROR)
		return FALSE;         /* ERR: syntax error */

	if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE) && 
	    !(ctree && GTK_CLIST(ctree)->selection))
		return FALSE;         /* ERR: file command without selection */

	if (ctree) {
		selection = GTK_CLIST(ctree)->selection;
		selection_len = g_list_length(selection);
	}

	if (action_type & (ACTION_PIPE_OUT | ACTION_PIPE_IN | ACTION_INSERT)) {
		if (ctree && selection_len > 1)
			return FALSE; /* ERR: pipe + multiple selection */
		if (!text)
			return FALSE; /* ERR: pipe and no displayed text */
	}

	children = g_new0(Children, 1);

	if (action_type & ACTION_SINGLE) {
		for (cur = selection; cur && is_ok == TRUE; cur = cur->next) {
			msginfo = gtk_ctree_node_get_row_data(ctree,
					GTK_CTREE_NODE(cur->data));
			if (!msginfo) {
				is_ok  = FALSE; /* ERR: msginfo missing */
				break;
			}
			cmd = parse_action_cmd(action, msginfo, ctree,
					       mimeview);
			if (!cmd) {
				debug_print("Action command error\n");
				is_ok  = FALSE; /* ERR: incorrect command */
				break;
			}
			if ((child_info = fork_child(cmd, action_type, text,
						     msgfont, body_pos,
						     children))) {
				children_list = g_slist_append(children_list,
							       child_info);
				children->open_in = (selection_len == 1) ?
					            (action_type &
						     (ACTION_OPEN_IN |
						      ACTION_HIDE_IN)) : 0;
			}
			g_free(cmd);
		}
	} else {
		cmd = parse_action_cmd(action, NULL, ctree, mimeview);
		if (cmd) {
			if ((child_info = fork_child(cmd, action_type, text,
						     msgfont, body_pos,
						     children))) {
				children_list = g_slist_append(children_list,
							       child_info);
				children->open_in = action_type &
						    (ACTION_OPEN_IN |
						     ACTION_HIDE_IN);
			}
			g_free(cmd);
		} else
			is_ok  = FALSE;         /* ERR: incorrect command */
	}

	if (!children_list) {
		 /* If not waiting for children, return */
		g_free(children);
	} else {
		GSList *cur;

		children->action  = g_strdup(action);
		children->window  = window;
		children->dialog  = NULL;
		children->list    = children_list;
		children->nb	  = g_slist_length(children_list);

		for (cur = children_list; cur; cur = cur->next) {
			child_info = (ChildInfo *) cur->data;
			child_info->tag_status = 
				gdk_input_add(child_info->chld_status,
					      GDK_INPUT_READ,
					      catch_status, child_info);
		}

		create_io_dialog(children);
	}

	return is_ok;
}

ChildInfo *fork_child(gchar *cmd, gint action_type, GtkWidget *text,
		      GdkFont *msgfont, gint body_pos, Children *children)
{
	gint chld_in[2], chld_out[2], chld_err[2], chld_status[2];
	gchar *cmdline[4];
	gint start, end, is_selection;
	gchar *selection;
	pid_t pid, gch_pid;
	ChildInfo *child_info;
	gint sync;

	sync = !(action_type & ACTION_ASYNC);

	chld_in[0] = chld_in[1] = chld_out[0] = chld_out[1] = chld_err[0]
		= chld_err[1] = chld_status[0] = chld_status[1] = -1;

	if (sync) {
		if (pipe(chld_status) || pipe(chld_in) || pipe(chld_out) ||
		    pipe(chld_err)) {
			alertpanel_error(_("Command could not be started. "
					   "Pipe creation failed.\n%s"),
					g_strerror(errno));
			/* Closing fd = -1 fails silently */
			close(chld_in[0]);
			close(chld_in[1]);
			close(chld_out[0]);
			close(chld_out[1]);
			close(chld_err[0]);
			close(chld_err[1]);
			close(chld_status[0]);
			close(chld_status[1]);
			return NULL; /* Pipe error */
		}
	}

	debug_print("Forking child and grandchild.\n");

	pid = fork();
	if (pid == 0) { /* Child */
		if (setpgid(0, 0))
			perror("setpgid");

		close(ConnectionNumber(gdk_display));

		gch_pid = fork();

		if (gch_pid == 0) {
			if (setpgid(0, getppid()))
				perror("setpgid");
			if (sync) {
				if (action_type &
				    (ACTION_PIPE_IN |
				     ACTION_OPEN_IN |
				     ACTION_HIDE_IN)) {
					close(fileno(stdin));
					dup  (chld_in[0]);
				}
				close(chld_in[0]);
				close(chld_in[1]);

				close(fileno(stdout));
				dup  (chld_out[1]);
				close(chld_out[0]);
				close(chld_out[1]);

				close(fileno(stderr));
				dup  (chld_err[1]);
				close(chld_err[0]);
				close(chld_err[1]);
			}

			cmdline[0] = "sh";
			cmdline[1] = "-c";
			cmdline[2] = cmd;
			cmdline[3] = 0;
			execvp("/bin/sh", cmdline);

			perror("execvp");
			_exit(1);
		} else if (gch_pid < (pid_t) 0) { /* Fork error */
			if (sync)
				write(chld_status[1], "1\n", 2);
			perror("fork");
			_exit(1);
		} else {/* Child */
			if (sync) {
				close(chld_in[0]);
				close(chld_in[1]);
				close(chld_out[0]);
				close(chld_out[1]);
				close(chld_err[0]);
				close(chld_err[1]);
				close(chld_status[0]);
			}
			if (sync) {
				debug_print("Child: Waiting for grandchild\n");
				waitpid(gch_pid, NULL, 0);
				debug_print("Child: grandchild ended\n");
				write(chld_status[1], "0\n", 2);
				close(chld_status[1]);
			}
			_exit(0);
		}
	} else if (pid < 0) { /* Fork error */
		alertpanel_error(_("Could not fork to execute the following "
				   "command:\n%s\n%s"),
				 cmd, g_strerror(errno));
		return NULL; 
	}

	/* Parent */

	if (!sync) {
		waitpid(pid, NULL, 0);
		return NULL;
	}

	close(chld_in[0]);
	if (!(action_type & (ACTION_PIPE_IN | ACTION_OPEN_IN | ACTION_HIDE_IN)))
		close(chld_in[1]);
	close(chld_out[1]);
	close(chld_err[1]);
	close(chld_status[1]);

	child_info = g_new0(ChildInfo, 1);

	child_info->children    = children;

	child_info->pid         = pid;
	child_info->cmd         = g_strdup(cmd);
	child_info->type        = action_type;
	child_info->new_out     = FALSE;
	child_info->output      = g_string_sized_new(0);
	child_info->chld_in     =
		(action_type &
		 (ACTION_PIPE_IN | ACTION_OPEN_IN | ACTION_HIDE_IN))
			? chld_in [1] : -1;
	child_info->chld_out    = chld_out[0];
	child_info->chld_err    = chld_err[0];
	child_info->chld_status = chld_status[0];
	child_info->tag_in      = -1;
	child_info->tag_out     = gdk_input_add(chld_out[0], GDK_INPUT_READ,
						catch_output, child_info);
	child_info->tag_err     = gdk_input_add(chld_err[0], GDK_INPUT_READ,
						catch_output, child_info);

	if (!(action_type & (ACTION_PIPE_IN | ACTION_PIPE_OUT | ACTION_INSERT)))
		return child_info;

	child_info->text        = text;
	child_info->msgfont     = msgfont;

	start = body_pos;
	end   = gtk_stext_get_length(GTK_STEXT(text));

	if (GTK_EDITABLE(text)->has_selection) {
		start = GTK_EDITABLE(text)->selection_start_pos;
		end   = GTK_EDITABLE(text)->selection_end_pos;
		if (start > end) {
			gint tmp;
			tmp = start;
			start = end;
			end = tmp;
		}
		is_selection = TRUE;
		if (start == end) {
			start = 0;
			end = gtk_stext_get_length(GTK_STEXT(text));
			is_selection = FALSE;
		}
	}

	selection = gtk_editable_get_chars(GTK_EDITABLE(text), start, end);

	if (action_type & ACTION_PIPE_IN) {
		write(chld_in[1], selection, strlen(selection));
		if (!(action_type & (ACTION_OPEN_IN | ACTION_HIDE_IN)))
			close(chld_in[1]);
		child_info->chld_in = -1; /* No more input */
	}
	g_free(selection);

	gtk_stext_freeze(GTK_STEXT(text));
	if (action_type & ACTION_PIPE_OUT) {
		gtk_stext_set_point(GTK_STEXT(text), start);
		gtk_stext_forward_delete(GTK_STEXT(text), end - start);
	}

	gtk_stext_thaw(GTK_STEXT(text));

	return child_info;
}

static void kill_children_cb(GtkWidget *widget, gpointer data)
{
	GSList *cur;
	Children *children = (Children *) data;
	ChildInfo *child_info;

	for (cur = children->list; cur; cur = cur->next) {
		child_info = (ChildInfo *)(cur->data);
		debug_print("Killing child group id %d\n", child_info->pid);
		if (child_info->pid && kill(-child_info->pid, SIGTERM) < 0)
			perror("kill");
	}
}

static gint wait_for_children(gpointer data)
{
	gboolean new_output;
	Children *children = (Children *)data;
	ChildInfo *child_info;
	GSList *cur;
	gint nb = children->nb;

	children->nb = 0;

	cur = children->list;
	new_output = FALSE;
	while (cur) {
		child_info = (ChildInfo *)cur->data;
		if (child_info->pid)
			children->nb++;
		new_output |= child_info->new_out;
		cur = cur->next;
	}

	children->output |= new_output;

	if (new_output || (children->dialog && (nb != children->nb)))
		update_io_dialog(children);

	if (children->nb)
		return FALSE;

	if (!children->dialog) {
		free_children(children);
	} else if (!children->output) {
		gtk_widget_destroy(children->dialog);
	}

	return FALSE;
}

static void send_input(GtkWidget *w, gpointer data)
{
	Children *children = (Children *) data;
	ChildInfo *child_info = (ChildInfo *) children->list->data;

	child_info->tag_in = gdk_input_add(child_info->chld_in,
					   GDK_INPUT_WRITE,
					   catch_input, children);
	gtk_widget_set_sensitive(children->input_hbox, FALSE);
}

static gint delete_io_dialog_cb(GtkWidget *w, GdkEvent *e, gpointer data)
{
	hide_io_dialog_cb(w, data);
	return TRUE;
}

static void hide_io_dialog_cb(GtkWidget *w, gpointer data)
{

	Children *children = (Children *)data;

	if (!children->nb) {
		gtk_signal_disconnect_by_data(GTK_OBJECT(children->dialog),
					      children);
		gtk_widget_destroy(children->dialog);
		free_children(children);
	}
}

static void childinfo_close_pipes(ChildInfo *child_info)
{
	if (child_info->tag_in > 0)
		gdk_input_remove(child_info->tag_in);
	gdk_input_remove(child_info->tag_out);
	gdk_input_remove(child_info->tag_err);

	if (child_info->chld_in >= 0)
		close(child_info->chld_in);
	close(child_info->chld_out);
	close(child_info->chld_err);
	close(child_info->chld_status);
}

static void free_children(Children *children)
{
	GSList *cur;
	ChildInfo *child_info;

	debug_print("Freeing children data %p\n", children);

	g_free(children->action);
	for (cur = children->list; cur;) {
		child_info = (ChildInfo *)cur->data;
		g_free(child_info->cmd);
		g_string_free(child_info->output, TRUE);
		children->list = g_slist_remove(children->list, child_info);
		g_free(child_info);
		cur = children->list;
	}
	g_free(children);
}

static void update_io_dialog(Children *children)
{
	GSList *cur;

	debug_print("Updating actions input/output dialog.\n");

	if (!children->nb) {
		gtk_widget_set_sensitive(children->abort_btn, FALSE);
		gtk_widget_set_sensitive(children->close_btn, TRUE);
		if (children->input_hbox)
			gtk_widget_set_sensitive(children->input_hbox, FALSE);
	}

	if (children->output) {
		GtkWidget *text = children->text;
		gchar *caption;
		ChildInfo *child_info;

		gtk_widget_show(children->scrolledwin);
		gtk_text_freeze(GTK_TEXT(text));
		gtk_text_set_point(GTK_TEXT(text), 0);
		gtk_text_forward_delete(GTK_TEXT(text), 
					gtk_text_get_length(GTK_TEXT(text)));
		for (cur = children->list; cur; cur = cur->next) {
			child_info = (ChildInfo *)cur->data;
			if (child_info->pid)
				caption = g_strdup_printf
					(_("--- Running: %s\n"),
					 child_info->cmd);
			else
				caption = g_strdup_printf
					(_("--- Ended: %s\n"),
					 child_info->cmd);

			gtk_text_insert(GTK_TEXT(text), NULL, NULL, NULL,
					caption, -1);
			gtk_text_insert(GTK_TEXT(text), NULL, NULL, NULL,
					child_info->output->str, -1);
			g_free(caption);
			child_info->new_out = FALSE;
		}
		gtk_text_thaw(GTK_TEXT(text));
	}
}

static void create_io_dialog(Children *children)
{
	GtkWidget *dialog;
	GtkWidget *vbox;
	GtkWidget *entry = NULL;
	GtkWidget *input_hbox = NULL;
	GtkWidget *send_button;
	GtkWidget *label;
	GtkWidget *text;
	GtkWidget *scrolledwin;
	GtkWidget *hbox;
	GtkWidget *abort_button;
	GtkWidget *close_button;

	debug_print("Creating action IO dialog\n");

	dialog = gtk_dialog_new();
	gtk_container_set_border_width
		(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 5);
	gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
	gtk_window_set_title(GTK_WINDOW(dialog), _("Action's input/output"));
	gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
	manage_window_set_transient(GTK_WINDOW(dialog));
	gtk_signal_connect(GTK_OBJECT(dialog), "delete_event",
			GTK_SIGNAL_FUNC(delete_io_dialog_cb), children);
	gtk_signal_connect(GTK_OBJECT(dialog), "destroy",
			GTK_SIGNAL_FUNC(hide_io_dialog_cb),
			children);

	vbox = gtk_vbox_new(FALSE, 8);
	gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), vbox);
	gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
	gtk_widget_show(vbox);

	label = gtk_label_new(children->action);
	gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
	gtk_widget_show(label);

	scrolledwin = gtk_scrolled_window_new(NULL, NULL);
	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
				       GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
	gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
	gtk_widget_set_usize(scrolledwin, 480, 200);
	gtk_widget_hide(scrolledwin);

	text = gtk_text_new(gtk_scrolled_window_get_hadjustment
			    (GTK_SCROLLED_WINDOW(scrolledwin)),
			    gtk_scrolled_window_get_vadjustment
			    (GTK_SCROLLED_WINDOW(scrolledwin)));
	gtk_text_set_editable(GTK_TEXT(text), FALSE);
	gtk_container_add(GTK_CONTAINER(scrolledwin), text);
	gtk_widget_show(text);

	if (children->open_in) {
		input_hbox = gtk_hbox_new(FALSE, 8);
		gtk_widget_show(input_hbox);

		entry = gtk_entry_new();
		gtk_widget_set_usize(entry, 320, -1);
		gtk_signal_connect(GTK_OBJECT(entry), "activate",
				   GTK_SIGNAL_FUNC(send_input), children);
		gtk_box_pack_start(GTK_BOX(input_hbox), entry, TRUE, TRUE, 0);
		if (children->open_in & ACTION_HIDE_IN)
			gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE);
		gtk_widget_show(entry);

		send_button = gtk_button_new_with_label(_(" Send "));
		gtk_signal_connect(GTK_OBJECT(send_button), "clicked",
				   GTK_SIGNAL_FUNC(send_input), children);
		gtk_box_pack_start(GTK_BOX(input_hbox), send_button, FALSE,
				   FALSE, 0);
		gtk_widget_show(send_button);

		gtk_box_pack_start(GTK_BOX(vbox), input_hbox, FALSE, FALSE, 0);
		gtk_widget_grab_focus(entry);
	}

	gtkut_button_set_create(&hbox, &abort_button, _("Abort"),
				&close_button, _("Close"), NULL, NULL);
	gtk_signal_connect(GTK_OBJECT(abort_button), "clicked",
			GTK_SIGNAL_FUNC(kill_children_cb), children);
	gtk_signal_connect(GTK_OBJECT(close_button), "clicked",
			GTK_SIGNAL_FUNC(hide_io_dialog_cb), children);
	gtk_widget_show(hbox);

	if (children->nb)
		gtk_widget_set_sensitive(close_button, FALSE);

	gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), hbox);

	children->dialog      = dialog;
	children->scrolledwin = scrolledwin;
	children->text        = text;
	children->input_hbox  = children->open_in ? input_hbox : NULL;
	children->input_entry = children->open_in ? entry : NULL;
	children->abort_btn   = abort_button;
	children->close_btn   = close_button;

	gtk_widget_show(dialog);
}

static void catch_status(gpointer data, gint source, GdkInputCondition cond)
{
	ChildInfo *child_info = (ChildInfo *)data;
	gchar buf;
	gint c;

	gdk_input_remove(child_info->tag_status);

	c = read(source, &buf, 1);
	debug_print("Child returned %c\n", buf);

	waitpid(-child_info->pid, NULL, 0);
	childinfo_close_pipes(child_info);
	child_info->pid = 0;

	wait_for_children(child_info->children);
}
	
static void catch_input(gpointer data, gint source, GdkInputCondition cond)
{
	Children *children = (Children *)data;
	ChildInfo *child_info = (ChildInfo *)children->list->data;
	gchar *input;
	gint c;

	debug_print("Sending input to grand child.\n");
	if (!(cond && GDK_INPUT_WRITE))
		return;

	gdk_input_remove(child_info->tag_in);
	child_info->tag_in = -1;

	input = gtk_editable_get_chars(GTK_EDITABLE(children->input_entry),
				       0, -1);
	c = write(child_info->chld_in, input, strlen(input));

	g_free(input);

	write(child_info->chld_in, "\n", 2);

	gtk_entry_set_text(GTK_ENTRY(children->input_entry), "");
	gtk_widget_set_sensitive(children->input_hbox, TRUE);
	debug_print("Input to grand child sent.\n");
}

static void catch_output(gpointer data, gint source, GdkInputCondition cond)
{
	ChildInfo *child_info = (ChildInfo *)data;
	gint c, i;
	gchar buf[PREFSBUFSIZE];

	debug_print("Catching grand child's output.\n");
	if (child_info->type & (ACTION_PIPE_OUT | ACTION_INSERT)
	    && source == child_info->chld_out) {
		gboolean is_selection = FALSE;
		GtkWidget *text = child_info->text;
		if (GTK_EDITABLE(text)->has_selection)
			is_selection = TRUE;
		gtk_stext_freeze(GTK_STEXT(text));
		while (TRUE) {
			c = read(source, buf, PREFSBUFSIZE - 1);
			if (c == 0)
				break;
			gtk_stext_insert(GTK_STEXT(text), child_info->msgfont,
					 NULL, NULL, buf, c);
		}
		if (is_selection) {
			/* Using the select_region draws things. Should not.
			 * so we just change selection position and 
			 * defere drawing when thawing. Hack?
			 */
			GTK_EDITABLE(text)->selection_end_pos =
					gtk_stext_get_point(GTK_STEXT(text));
		}
		gtk_stext_thaw(GTK_STEXT(child_info->text));
	} else {
		c = read(source, buf, PREFSBUFSIZE - 1);
		for (i = 0; i < c; i++)
			child_info->output = g_string_append_c
				(child_info->output, buf[i]);
		if (c > 0)
			child_info->new_out = TRUE;
	}
	wait_for_children(child_info->children);
}