src/action.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2003 Hiroyuki Yamamoto
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <gtk/gtk.h>
  28 #include <gdk/gdkkeysyms.h>
  29 #include <gdk/gdkx.h>
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32 #include <string.h>
  33 #include <errno.h>
  34 #include <sys/types.h>
  35 #include <sys/wait.h>
  36 #include <signal.h>
  37 #include <unistd.h>
  38
  39 #include "intl.h"
  40 #include "utils.h"
  41 #include "gtkutils.h"
  42 #include "manage_window.h"
  43 #include "mainwindow.h"
  44 #include "prefs_common.h"
  45 #include "alertpanel.h"
  46 #include "inputdialog.h"
  47 #include "action.h"
  48 #include "compose.h"
  49 #include "procmsg.h"
  50 #include "gtkstext.h"
  51 #include "mimeview.h"
  52 #include "textview.h"
  53
  54 typedef struct _Children                Children;
  55 typedef struct _ChildInfo               ChildInfo;
  56 typedef struct _UserStringDialog        UserStringDialog;
  57
  58 struct _Children
  59 {
  60         GtkWidget       *dialog;
  61         GtkWidget       *text;
  62         GtkWidget       *input_entry;
  63         GtkWidget       *input_hbox;
  64         GtkWidget       *abort_btn;
  65         GtkWidget       *close_btn;
  66         GtkWidget       *scrolledwin;
  67
  68         gchar           *action;
  69         GSList          *list;
  70         gint             nb;
  71         gint             open_in;
  72         gboolean         output;
  73 };
  74
  75 struct _ChildInfo
  76 {
  77         Children        *children;
  78         gchar           *cmd;
  79         guint            type;
  80         pid_t            pid;
  81         gint             chld_in;
  82         gint             chld_out;
  83         gint             chld_err;
  84         gint             chld_status;
  85         gint             tag_in;
  86         gint             tag_out;
  87         gint             tag_err;
  88         gint             tag_status;
  89         gint             new_out;
  90         GString         *output;
  91         GtkWidget       *text;
  92         GdkFont         *msgfont;
  93 };
  94
  95 static void action_update_menu          (GtkItemFactory *ifactory,
  96                                          gchar          *branch_path,
  97                                          gpointer        callback,
  98                                          gpointer        data);
  99 static void compose_actions_execute_cb  (Compose        *compose,
 100                                          guint           action_nb,
 101                                          GtkWidget      *widget);
 102 static void mainwin_actions_execute_cb  (MainWindow     *mainwin,
 103                                          guint           action_nb,
 104                                          GtkWidget      *widget);
 105 static void msgview_actions_execute_cb  (MessageView    *msgview,
 106                                          guint           action_nb,
 107                                          GtkWidget      *widget);
 108 static void message_actions_execute     (MessageView    *msgview,
 109                                          guint           action_nb,
 110                                          GtkCTree       *ctree);
 111
 112 static gboolean execute_actions         (gchar          *action,
 113                                          GtkCTree       *ctree,
 114                                          GtkWidget      *text,
 115                                          GdkFont        *msgfont,
 116                                          gint            body_pos,
 117                                          MimeView       *mimeview);
 118
 119 static gchar *parse_action_cmd          (gchar          *action,
 120                                          MsgInfo        *msginfo,
 121                                          GtkCTree       *ctree,
 122                                          MimeView       *mimeview,
 123                                          const gchar    *user_str,
 124                                          const gchar    *user_hidden_str,
 125                                          const gchar    *sel_str);
 126 static gboolean parse_append_filename   (GString        *cmd,
 127                                          MsgInfo        *msginfo);
 128
 129 static gboolean parse_append_msgpart    (GString        *cmd,
 130                                          MsgInfo        *msginfo,
 131                                          MimeView       *mimeview);
 132
 133 static ChildInfo *fork_child            (gchar          *cmd,
 134                                          gint            action_type,
 135                                          GtkWidget      *text,
 136                                          GdkFont        *msgfont,
 137                                          gint            body_pos,
 138                                          Children       *children);
 139
 140 static gint wait_for_children           (Children       *children);
 141
 142 static void free_children               (Children       *children);
 143
 144 static void childinfo_close_pipes       (ChildInfo      *child_info);
 145
 146 static void create_io_dialog            (Children       *children);
 147 static void update_io_dialog            (Children       *children);
 148
 149 static void hide_io_dialog_cb           (GtkWidget      *widget,
 150                                          gpointer        data);
 151 static gint io_dialog_key_pressed_cb    (GtkWidget      *widget,
 152                                          GdkEventKey    *event,
 153                                          gpointer        data);
 154
 155 static void catch_output                (gpointer                data,
 156                                          gint                    source,
 157                                          GdkInputCondition       cond);
 158 static void catch_input                 (gpointer                data,
 159                                          gint                    source,
 160                                          GdkInputCondition       cond);
 161 static void catch_status                (gpointer                data,
 162                                          gint                    source,
 163                                          GdkInputCondition       cond);
 164
 165 static gchar *get_user_string           (const gchar    *action,
 166                                          ActionType      type);
 167
 168
 169 ActionType action_get_type(const gchar *action_str)
 170 {
 171         const gchar *p;
 172         ActionType action_type = ACTION_NONE;
 173
 174         g_return_val_if_fail(action_str,  ACTION_ERROR);
 175         g_return_val_if_fail(*action_str, ACTION_ERROR);
 176
 177         p = action_str;
 178
 179         if (p[0] == '|') {
 180                 action_type |= ACTION_PIPE_IN;
 181                 p++;
 182         } else if (p[0] == '>') {
 183                 action_type |= ACTION_USER_IN;
 184                 p++;
 185         } else if (p[0] == '*') {
 186                 action_type |= ACTION_USER_HIDDEN_IN;
 187                 p++;
 188         }
 189
 190         if (p[0] == '\0')
 191                 return ACTION_ERROR;
 192
 193         while (*p && action_type != ACTION_ERROR) {
 194                 if (p[0] == '%') {
 195                         switch (p[1]) {
 196                         case 'f':
 197                                 action_type |= ACTION_SINGLE;
 198                                 break;
 199                         case 'F':
 200                                 action_type |= ACTION_MULTIPLE;
 201                                 break;
 202                         case 'p':
 203                                 action_type |= ACTION_SINGLE;
 204                                 break;
 205                         case 's':
 206                                 action_type |= ACTION_SELECTION_STR;
 207                                 break;
 208                         case 'u':
 209                                 action_type |= ACTION_USER_STR;
 210                                 break;
 211                         case 'h':
 212                                 action_type |= ACTION_USER_HIDDEN_STR;
 213                                 break;
 214                         default:
 215                                 action_type = ACTION_ERROR;
 216                                 break;
 217                         }
 218                 } else if (p[0] == '|') {
 219                         if (p[1] == '\0')
 220                                 action_type |= ACTION_PIPE_OUT;
 221                 } else if (p[0] == '>') {
 222                         if (p[1] == '\0')
 223                                 action_type |= ACTION_INSERT;
 224                 } else if (p[0] == '&') {
 225                         if (p[1] == '\0')
 226                                 action_type |= ACTION_ASYNC;
 227                 }
 228                 p++;
 229         }
 230
 231         return action_type;
 232 }
 233
 234 static gchar *parse_action_cmd(gchar *action, MsgInfo *msginfo,
 235                                GtkCTree *ctree, MimeView *mimeview,
 236                                const gchar *user_str,
 237                                const gchar *user_hidden_str,
 238                                const gchar *sel_str)
 239 {
 240         GString *cmd;
 241         gchar *p;
 242         GList *cur;
 243         MsgInfo *msg;
 244
 245         p = action;
 246
 247         if (p[0] == '|' || p[0] == '>' || p[0] == '*')
 248                 p++;
 249
 250         cmd = g_string_sized_new(strlen(action));
 251
 252         while (p[0] &&
 253                !((p[0] == '|' || p[0] == '>' || p[0] == '&') && !p[1])) {
 254                 if (p[0] == '%' && p[1]) {
 255                         switch (p[1]) {
 256                         case 'f':
 257                                 if (!parse_append_filename(cmd, msginfo)) {
 258                                         g_string_free(cmd, TRUE);
 259                                         return NULL;
 260                                 }
 261                                 p++;
 262                                 break;
 263                         case 'F':
 264                                 for (cur = GTK_CLIST(ctree)->selection;
 265                                      cur != NULL; cur = cur->next) {
 266                                         msg = gtk_ctree_node_get_row_data(ctree,
 267                                               GTK_CTREE_NODE(cur->data));
 268                                         if (!parse_append_filename(cmd, msg)) {
 269                                                 g_string_free(cmd, TRUE);
 270                                                 return NULL;
 271                                         }
 272                                         if (cur->next)
 273                                                 g_string_append_c(cmd, ' ');
 274                                 }
 275                                 p++;
 276                                 break;
 277                         case 'p':
 278                                 if (!parse_append_msgpart(cmd, msginfo,
 279                                                           mimeview)) {
 280                                         g_string_free(cmd, TRUE);
 281                                         return NULL;
 282                                 }
 283                                 p++;
 284                                 break;
 285                         case 's':
 286                                 if (sel_str)
 287                                         g_string_append(cmd, sel_str);
 288                                 p++;
 289                                 break;
 290                         case 'u':
 291                                 if (user_str)
 292                                         g_string_append(cmd, user_str);
 293                                 p++;
 294                                 break;
 295                         case 'h':
 296                                 if (user_hidden_str)
 297                                         g_string_append(cmd, user_hidden_str);
 298                                 p++;
 299                                 break;
 300                         default:
 301                                 g_string_append_c(cmd, p[0]);
 302                                 g_string_append_c(cmd, p[1]);
 303                                 p++;
 304                         }
 305                 } else {
 306                         g_string_append_c(cmd, p[0]);
 307                 }
 308                 p++;
 309         }
 310         if (cmd->len == 0) {
 311                 g_string_free(cmd, TRUE);
 312                 return NULL;
 313         }
 314
 315         p = cmd->str;
 316         g_string_free(cmd, FALSE);
 317         return p;
 318 }
 319
 320 static gboolean parse_append_filename(GString *cmd, MsgInfo *msginfo)
 321 {
 322         gchar *filename;
 323
 324         g_return_val_if_fail(msginfo, FALSE);
 325
 326         filename = procmsg_get_message_file(msginfo);
 327
 328         if (filename) {
 329                 g_string_append(cmd, filename);
 330                 g_free(filename);
 331         } else {
 332                 alertpanel_error(_("Could not get message file %d"),
 333                                  msginfo->msgnum);
 334                 return FALSE;
 335         }
 336
 337         return TRUE;
 338 }
 339
 340 static gboolean parse_append_msgpart(GString *cmd, MsgInfo *msginfo,
 341                                      MimeView *mimeview)
 342 {
 343         gchar    *filename;
 344         gchar    *partname;
 345         MimeInfo *partinfo;
 346         gint      ret;
 347         FILE     *fp;
 348
 349         if (!mimeview) {
 350 #if USE_GPGME
 351                 if ((fp = procmsg_open_message_decrypted(msginfo, &partinfo))
 352                     == NULL) {
 353                         alertpanel_error(_("Could not get message file."));
 354                         return FALSE;
 355                 }
 356 #else
 357                 if ((fp = procmsg_open_message(msginfo)) == NULL) {
 358                         alertpanel_error(_("Could not get message file."));
 359                         return FALSE;
 360                 }
 361                 partinfo = procmime_scan_mime_header(fp);
 362 #endif
 363                 fclose(fp);
 364                 if (!partinfo) {
 365                         procmime_mimeinfo_free_all(partinfo);
 366                         alertpanel_error(_("Could not get message part."));
 367                         return FALSE;
 368                 }
 369                 filename = procmsg_get_message_file(msginfo);
 370         } else {
 371                 if (!mimeview->opened) {
 372                         alertpanel_error(_("No message part selected."));
 373                         return FALSE;
 374                 }
 375                 if (!mimeview->file) {
 376                         alertpanel_error(_("No message file selected."));
 377                         return FALSE;
 378                 }
 379                 partinfo = gtk_ctree_node_get_row_data
 380                                 (GTK_CTREE(mimeview->ctree),
 381                                  mimeview->opened);
 382                 g_return_val_if_fail(partinfo != NULL, FALSE);
 383                 filename = mimeview->file;
 384         }
 385         partname = procmime_get_tmp_file_name(partinfo);
 386
 387         ret = procmime_get_part(partname, filename, partinfo);
 388
 389         if (!mimeview) {
 390                 procmime_mimeinfo_free_all(partinfo);
 391                 g_free(filename);
 392         }
 393
 394         if (ret < 0) {
 395                 alertpanel_error(_("Can't get part of multipart message"));
 396                 g_free(partname);
 397                 return FALSE;
 398         }
 399
 400         g_string_append(cmd, partname);
 401
 402         g_free(partname);
 403
 404         return TRUE;
 405 }
 406
 407 void actions_execute(gpointer data,
 408                      guint action_nb,
 409                      GtkWidget *widget,
 410                      gint source)
 411 {
 412         if (source == TOOLBAR_MAIN)
 413                 mainwin_actions_execute_cb((MainWindow*)data, action_nb, widget);
 414         else if (source == TOOLBAR_COMPOSE)
 415                 compose_actions_execute_cb((Compose*)data, action_nb, widget);
 416         else if (source == TOOLBAR_MSGVIEW)
 417                 msgview_actions_execute_cb((MessageView*)data, action_nb, widget);
 418 }
 419
 420 void action_update_mainwin_menu(GtkItemFactory *ifactory, MainWindow *mainwin)
 421 {
 422         action_update_menu(ifactory, "/Tools/Actions",
 423                            mainwin_actions_execute_cb, mainwin);
 424 }
 425
 426 void action_update_compose_menu(GtkItemFactory *ifactory, Compose *compose)
 427 {
 428         action_update_menu(ifactory, "/Tools/Actions",
 429                            compose_actions_execute_cb, compose);
 430 }
 431
 432 static void action_update_menu(GtkItemFactory *ifactory, gchar *branch_path,
 433                                gpointer callback, gpointer data)
 434 {
 435         GtkWidget *menuitem;
 436         gchar *menu_path;
 437         GSList *cur;
 438         gchar *action, *action_p;
 439         GList *amenu;
 440         GtkItemFactoryEntry ifentry = {NULL, NULL, NULL, 0, "<Branch>"};
 441
 442         ifentry.path = branch_path;
 443         menuitem = gtk_item_factory_get_widget(ifactory, branch_path);
 444         g_return_if_fail(menuitem != NULL);
 445
 446         amenu = GTK_MENU_SHELL(menuitem)->children;
 447         while (amenu != NULL) {
 448                 GList *alist = amenu->next;
 449                 gtk_widget_destroy(GTK_WIDGET(amenu->data));
 450                 amenu = alist;
 451         }
 452
 453         ifentry.accelerator     = NULL;
 454         ifentry.callback_action = 0;
 455         ifentry.callback        = callback;
 456         ifentry.item_type       = NULL;
 457
 458         for (cur = prefs_common.actions_list; cur; cur = cur->next) {
 459                 action   = g_strdup((gchar *)cur->data);
 460                 action_p = strstr(action, ": ");
 461                 if (action_p && action_p[2] &&
 462                     action_get_type(&action_p[2]) != ACTION_ERROR) {
 463                         action_p[0] = 0x00;
 464                         menu_path = g_strdup_printf("%s/%s", branch_path,
 465                                                     action);
 466                         ifentry.path = menu_path;
 467                         gtk_item_factory_create_item(ifactory, &ifentry, data,
 468                                                      1);
 469                         g_free(menu_path);
 470                 }
 471                 g_free(action);
 472                 ifentry.callback_action++;
 473         }
 474 }
 475
 476 static void compose_actions_execute_cb(Compose *compose, guint action_nb,
 477                                        GtkWidget *widget)
 478 {
 479         gchar *buf, *action;
 480         guint action_type;
 481
 482         g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));
 483
 484         buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
 485         g_return_if_fail(buf != NULL);
 486         action = strstr(buf, ": ");
 487         g_return_if_fail(action != NULL);
 488
 489         /* Point to the beginning of the command-line */
 490         action += 2;
 491
 492         action_type = action_get_type(action);
 493         if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE)) {
 494                 alertpanel_warning
 495                         (_("The selected action cannot be used in the compose window\n"
 496                            "because it contains %%f, %%F or %%p."));
 497                 return;
 498         }
 499
 500         execute_actions(action, NULL, compose->text, NULL, 0, NULL);
 501 }
 502
 503 static void mainwin_actions_execute_cb(MainWindow *mainwin, guint action_nb,
 504                                        GtkWidget *widget)
 505 {
 506         message_actions_execute(mainwin->messageview, action_nb,
 507                                 GTK_CTREE(mainwin->summaryview->ctree));
 508 }
 509
 510 static void msgview_actions_execute_cb(MessageView *msgview, guint action_nb,
 511                                        GtkWidget *widget)
 512 {
 513         message_actions_execute(msgview, action_nb, NULL);
 514 }
 515
 516 static void message_actions_execute(MessageView *msgview, guint action_nb,
 517                                     GtkCTree *ctree)
 518 {
 519         TextView *textview = NULL;
 520         MimeView *mimeview = NULL;
 521         gchar *buf;
 522         gchar *action;
 523         GtkWidget *text = NULL;
 524         GdkFont *msgfont = NULL;
 525         guint body_pos = 0;
 526
 527         g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));
 528
 529         buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
 530
 531         g_return_if_fail(buf);
 532         g_return_if_fail(action = strstr(buf, ": "));
 533
 534         /* Point to the beginning of the command-line */
 535         action += 2;
 536
 537         switch (msgview->type) {
 538         case MVIEW_TEXT:
 539                 if (msgview->textview && msgview->textview->text)
 540                         textview = msgview->textview;
 541                 break;
 542         case MVIEW_MIME:
 543                 if (msgview->mimeview) {
 544                         mimeview = msgview->mimeview;
 545                         if (msgview->mimeview->type == MIMEVIEW_TEXT &&
 546                             msgview->mimeview->textview &&
 547                             msgview->mimeview->textview->text)
 548                                 textview = msgview->mimeview->textview;
 549                 }
 550                 break;
 551         }
 552
 553         if (textview) {
 554                 text     = textview->text;
 555                 msgfont  = textview->msgfont;
 556                 body_pos = textview->body_pos;
 557         }
 558
 559         execute_actions(action, ctree, text, msgfont, body_pos, mimeview);
 560 }
 561
 562 static gboolean execute_actions(gchar *action, GtkCTree *ctree,
 563                                 GtkWidget *text, GdkFont *msgfont,
 564                                 gint body_pos, MimeView *mimeview)
 565 {
 566         GList *cur, *selection = NULL;
 567         GSList *children_list = NULL;
 568         gint is_ok  = TRUE;
 569         gint selection_len = 0;
 570         Children *children;
 571         ChildInfo *child_info;
 572         gint action_type;
 573         MsgInfo *msginfo;
 574         gchar *cmd;
 575         gchar *sel_str = NULL;
 576         gchar *user_str = NULL;
 577         gchar *user_hidden_str = NULL;
 578
 579         g_return_val_if_fail(action && *action, FALSE);
 580
 581         action_type = action_get_type(action);
 582
 583         if (action_type == ACTION_ERROR)
 584                 return FALSE;         /* ERR: syntax error */
 585
 586         if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE) &&
 587             !(ctree && GTK_CLIST(ctree)->selection))
 588                 return FALSE;         /* ERR: file command without selection */
 589
 590         if (ctree) {
 591                 selection = GTK_CLIST(ctree)->selection;
 592                 selection_len = g_list_length(selection);
 593         }
 594
 595         if (action_type & (ACTION_PIPE_OUT | ACTION_PIPE_IN | ACTION_INSERT)) {
 596                 if (ctree && selection_len > 1)
 597                         return FALSE; /* ERR: pipe + multiple selection */
 598                 if (!text)
 599                         return FALSE; /* ERR: pipe and no displayed text */
 600         }
 601
 602         if (action_type & ACTION_SELECTION_STR) {
 603                 if (!text)
 604                         return FALSE; /* ERR: selection string but no text */
 605                 else {
 606                         guint start = 0, end = 0;
 607                         if (GTK_EDITABLE(text)->has_selection) {
 608                                 start = GTK_EDITABLE(text)->selection_start_pos;
 609                                 end   = GTK_EDITABLE(text)->selection_end_pos;
 610                                 if (start > end) {
 611                                         guint tmp;
 612                                         tmp = start;
 613                                         start = end;
 614                                         end = tmp;
 615                                 }
 616                         }
 617                         sel_str = gtk_editable_get_chars(GTK_EDITABLE(text),
 618                                                          start, end);
 619                 }
 620         }
 621
 622         if (action_type & (ACTION_USER_STR))
 623                 if (!(user_str = get_user_string(action, ACTION_USER_STR)))
 624                         return FALSE;
 625
 626         if (action_type & (ACTION_USER_HIDDEN_STR))
 627                 if (!(user_hidden_str =
 628                         get_user_string(action, ACTION_USER_HIDDEN_STR)))
 629                         return FALSE;
 630
 631         children = g_new0(Children, 1);
 632
 633         if (action_type & ACTION_SINGLE) {
 634                 for (cur = selection; cur && is_ok == TRUE; cur = cur->next) {
 635                         msginfo = gtk_ctree_node_get_row_data(ctree,
 636                                         GTK_CTREE_NODE(cur->data));
 637                         if (!msginfo) {
 638                                 is_ok  = FALSE; /* ERR: msginfo missing */
 639                                 break;
 640                         }
 641                         cmd = parse_action_cmd(action, msginfo, ctree,
 642                                                mimeview, user_str,
 643                                                user_hidden_str, sel_str);
 644                         if (!cmd) {
 645                                 debug_print("Action command error\n");
 646                                 is_ok  = FALSE; /* ERR: incorrect command */
 647                                 break;
 648                         }
 649                         if ((child_info = fork_child(cmd, action_type, text,
 650                                                      msgfont, body_pos,
 651                                                      children))) {
 652                                 children_list = g_slist_append(children_list,
 653                                                                child_info);
 654                                 children->open_in = (selection_len == 1) ?
 655                                                     (action_type &
 656                                                      (ACTION_USER_IN |
 657                                                       ACTION_USER_HIDDEN_IN)) : 0;
 658                         }
 659                         g_free(cmd);
 660                 }
 661         } else {
 662                 cmd = parse_action_cmd(action, NULL, ctree, mimeview, user_str,
 663                                        user_hidden_str, sel_str);
 664                 if (cmd) {
 665                         if ((child_info = fork_child(cmd, action_type, text,
 666                                                      msgfont, body_pos,
 667                                                      children))) {
 668                                 children_list = g_slist_append(children_list,
 669                                                                child_info);
 670                                 children->open_in = action_type &
 671                                                     (ACTION_USER_IN |
 672                                                      ACTION_USER_HIDDEN_IN);
 673                         }
 674                         g_free(cmd);
 675                 } else
 676                         is_ok  = FALSE;         /* ERR: incorrect command */
 677         }
 678
 679         g_free(user_str);
 680         g_free(user_hidden_str);
 681
 682         if (!children_list) {
 683                  /* If not waiting for children, return */
 684                 g_free(children);
 685         } else {
 686                 GSList *cur;
 687
 688                 children->action  = g_strdup(action);
 689                 children->dialog  = NULL;
 690                 children->list    = children_list;
 691                 children->nb      = g_slist_length(children_list);
 692
 693                 for (cur = children_list; cur; cur = cur->next) {
 694                         child_info = (ChildInfo *) cur->data;
 695                         child_info->tag_status =
 696                                 gdk_input_add(child_info->chld_status,
 697                                               GDK_INPUT_READ,
 698                                               catch_status, child_info);
 699                 }
 700
 701                 create_io_dialog(children);
 702         }
 703
 704         return is_ok;
 705 }
 706
 707 static ChildInfo *fork_child(gchar *cmd, gint action_type, GtkWidget *text,
 708                              GdkFont *msgfont, gint body_pos,
 709                              Children *children)
 710 {
 711         gint chld_in[2], chld_out[2], chld_err[2], chld_status[2];
 712         gchar *cmdline[4];
 713         guint start, end;
 714         gint is_selection;
 715         gchar *selection;
 716         pid_t pid, gch_pid;
 717         ChildInfo *child_info;
 718         gint sync;
 719
 720         sync = !(action_type & ACTION_ASYNC);
 721
 722         chld_in[0] = chld_in[1] = chld_out[0] = chld_out[1] = chld_err[0]
 723                 = chld_err[1] = chld_status[0] = chld_status[1] = -1;
 724
 725         if (sync) {
 726                 if (pipe(chld_status) || pipe(chld_in) || pipe(chld_out) ||
 727                     pipe(chld_err)) {
 728                         alertpanel_error(_("Command could not be started. "
 729                                            "Pipe creation failed.\n%s"),
 730                                         g_strerror(errno));
 731                         /* Closing fd = -1 fails silently */
 732                         close(chld_in[0]);
 733                         close(chld_in[1]);
 734                         close(chld_out[0]);
 735                         close(chld_out[1]);
 736                         close(chld_err[0]);
 737                         close(chld_err[1]);
 738                         close(chld_status[0]);
 739                         close(chld_status[1]);
 740                         return NULL; /* Pipe error */
 741                 }
 742         }
 743
 744         debug_print("Forking child and grandchild.\n");
 745
 746         pid = fork();
 747         if (pid == 0) { /* Child */
 748                 if (setpgid(0, 0))
 749                         perror("setpgid");
 750
 751                 close(ConnectionNumber(gdk_display));
 752
 753                 gch_pid = fork();
 754
 755                 if (gch_pid == 0) {
 756                         if (setpgid(0, getppid()))
 757                                 perror("setpgid");
 758                         if (sync) {
 759                                 if (action_type &
 760                                     (ACTION_PIPE_IN |
 761                                      ACTION_USER_IN |
 762                                      ACTION_USER_HIDDEN_IN)) {
 763                                         close(fileno(stdin));
 764                                         dup  (chld_in[0]);
 765                                 }
 766                                 close(chld_in[0]);
 767                                 close(chld_in[1]);
 768
 769                                 close(fileno(stdout));
 770                                 dup  (chld_out[1]);
 771                                 close(chld_out[0]);
 772                                 close(chld_out[1]);
 773
 774                                 close(fileno(stderr));
 775                                 dup  (chld_err[1]);
 776                                 close(chld_err[0]);
 777                                 close(chld_err[1]);
 778                         }
 779
 780                         cmdline[0] = "sh";
 781                         cmdline[1] = "-c";
 782                         cmdline[2] = cmd;
 783                         cmdline[3] = 0;
 784                         execvp("/bin/sh", cmdline);
 785
 786                         perror("execvp");
 787                         _exit(1);
 788                 } else if (gch_pid < (pid_t) 0) { /* Fork error */
 789                         if (sync)
 790                                 write(chld_status[1], "1\n", 2);
 791                         perror("fork");
 792                         _exit(1);
 793                 } else { /* Child */
 794                         if (sync) {
 795                                 close(chld_in[0]);
 796                                 close(chld_in[1]);
 797                                 close(chld_out[0]);
 798                                 close(chld_out[1]);
 799                                 close(chld_err[0]);
 800                                 close(chld_err[1]);
 801                                 close(chld_status[0]);
 802                         }
 803                         if (sync) {
 804                                 debug_print("Child: Waiting for grandchild\n");
 805                                 waitpid(gch_pid, NULL, 0);
 806                                 debug_print("Child: grandchild ended\n");
 807                                 write(chld_status[1], "0\n", 2);
 808                                 close(chld_status[1]);
 809                         }
 810                         _exit(0);
 811                 }
 812         } else if (pid < 0) { /* Fork error */
 813                 alertpanel_error(_("Could not fork to execute the following "
 814                                    "command:\n%s\n%s"),
 815                                  cmd, g_strerror(errno));
 816                 return NULL;
 817         }
 818
 819         /* Parent */
 820
 821         if (!sync) {
 822                 waitpid(pid, NULL, 0);
 823                 return NULL;
 824         }
 825
 826         close(chld_in[0]);
 827         if (!(action_type & (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 828                 close(chld_in[1]);
 829         close(chld_out[1]);
 830         close(chld_err[1]);
 831         close(chld_status[1]);
 832
 833         child_info = g_new0(ChildInfo, 1);
 834
 835         child_info->children    = children;
 836
 837         child_info->pid         = pid;
 838         child_info->cmd         = g_strdup(cmd);
 839         child_info->type        = action_type;
 840         child_info->new_out     = FALSE;
 841         child_info->output      = g_string_new(NULL);
 842         child_info->chld_in     =
 843                 (action_type &
 844                  (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN))
 845                         ? chld_in [1] : -1;
 846         child_info->chld_out    = chld_out[0];
 847         child_info->chld_err    = chld_err[0];
 848         child_info->chld_status = chld_status[0];
 849         child_info->tag_in      = -1;
 850         child_info->tag_out     = gdk_input_add(chld_out[0], GDK_INPUT_READ,
 851                                                 catch_output, child_info);
 852         child_info->tag_err     = gdk_input_add(chld_err[0], GDK_INPUT_READ,
 853                                                 catch_output, child_info);
 854
 855         if (!(action_type & (ACTION_PIPE_IN | ACTION_PIPE_OUT | ACTION_INSERT)))
 856                 return child_info;
 857
 858         child_info->text        = text;
 859         child_info->msgfont     = msgfont;
 860
 861         start = body_pos;
 862         end   = gtk_stext_get_length(GTK_STEXT(text));
 863
 864         if (GTK_EDITABLE(text)->has_selection) {
 865                 start = GTK_EDITABLE(text)->selection_start_pos;
 866                 end   = GTK_EDITABLE(text)->selection_end_pos;
 867                 if (start > end) {
 868                         guint tmp;
 869                         tmp = start;
 870                         start = end;
 871                         end = tmp;
 872                 }
 873                 is_selection = TRUE;
 874                 if (start == end) {
 875                         start = 0;
 876                         end = gtk_stext_get_length(GTK_STEXT(text));
 877                         is_selection = FALSE;
 878                 }
 879         }
 880
 881         selection = gtk_editable_get_chars(GTK_EDITABLE(text), start, end);
 882
 883         if (action_type & ACTION_PIPE_IN) {
 884                 write(chld_in[1], selection, strlen(selection));
 885                 if (!(action_type & (ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 886                         close(chld_in[1]);
 887                 child_info->chld_in = -1; /* No more input */
 888         }
 889         g_free(selection);
 890
 891         gtk_stext_freeze(GTK_STEXT(text));
 892         if (action_type & ACTION_PIPE_OUT) {
 893                 gtk_stext_set_point(GTK_STEXT(text), start);
 894                 gtk_stext_forward_delete(GTK_STEXT(text), end - start);
 895         }
 896
 897         gtk_stext_thaw(GTK_STEXT(text));
 898
 899         return child_info;
 900 }
 901
 902 static void kill_children_cb(GtkWidget *widget, gpointer data)
 903 {
 904         GSList *cur;
 905         Children *children = (Children *) data;
 906         ChildInfo *child_info;
 907
 908         for (cur = children->list; cur; cur = cur->next) {
 909                 child_info = (ChildInfo *)(cur->data);
 910                 debug_print("Killing child group id %d\n", child_info->pid);
 911                 if (child_info->pid && kill(-child_info->pid, SIGTERM) < 0)
 912                         perror("kill");
 913         }
 914 }
 915
 916 static gint wait_for_children(Children *children)
 917 {
 918         gboolean new_output;
 919         ChildInfo *child_info;
 920         GSList *cur;
 921         gint nb = children->nb;
 922
 923         children->nb = 0;
 924
 925         cur = children->list;
 926         new_output = FALSE;
 927         while (cur) {
 928                 child_info = (ChildInfo *)cur->data;
 929                 if (child_info->pid)
 930                         children->nb++;
 931                 new_output |= child_info->new_out;
 932                 cur = cur->next;
 933         }
 934
 935         children->output |= new_output;
 936
 937         if (new_output || (children->dialog && (nb != children->nb)))
 938                 update_io_dialog(children);
 939
 940         if (children->nb)
 941                 return FALSE;
 942
 943         if (!children->dialog) {
 944                 free_children(children);
 945         } else if (!children->output) {
 946                 gtk_widget_destroy(children->dialog);
 947         }
 948
 949         return FALSE;
 950 }
 951
 952 static void send_input(GtkWidget *w, gpointer data)
 953 {
 954         Children *children = (Children *) data;
 955         ChildInfo *child_info = (ChildInfo *) children->list->data;
 956
 957         child_info->tag_in = gdk_input_add(child_info->chld_in,
 958                                            GDK_INPUT_WRITE,
 959                                            catch_input, children);
 960         gtk_widget_set_sensitive(children->input_hbox, FALSE);
 961 }
 962
 963 static gint delete_io_dialog_cb(GtkWidget *w, GdkEvent *e, gpointer data)
 964 {
 965         hide_io_dialog_cb(w, data);
 966         return TRUE;
 967 }
 968
 969 static void hide_io_dialog_cb(GtkWidget *w, gpointer data)
 970 {
 971
 972         Children *children = (Children *)data;
 973
 974         if (!children->nb) {
 975                 gtk_signal_disconnect_by_data(GTK_OBJECT(children->dialog),
 976                                               children);
 977                 gtk_widget_destroy(children->dialog);
 978                 free_children(children);
 979         }
 980 }
 981
 982 static gint io_dialog_key_pressed_cb(GtkWidget *widget, GdkEventKey *event,
 983                                      gpointer data)
 984 {
 985         if (event && event->keyval == GDK_Escape)
 986                 hide_io_dialog_cb(widget, data);
 987         return TRUE;
 988 }
 989
 990 static void childinfo_close_pipes(ChildInfo *child_info)
 991 {
 992         if (child_info->tag_in > 0)
 993                 gdk_input_remove(child_info->tag_in);
 994         gdk_input_remove(child_info->tag_out);
 995         gdk_input_remove(child_info->tag_err);
 996
 997         if (child_info->chld_in >= 0)
 998                 close(child_info->chld_in);
 999         close(child_info->chld_out);
1000         close(child_info->chld_err);
1001         close(child_info->chld_status);
1002 }
1003
1004 static void free_children(Children *children)
1005 {
1006         GSList *cur;
1007         ChildInfo *child_info;
1008
1009         debug_print("Freeing children data %p\n", children);
1010
1011         g_free(children->action);
1012         for (cur = children->list; cur;) {
1013                 child_info = (ChildInfo *)cur->data;
1014                 g_free(child_info->cmd);
1015                 g_string_free(child_info->output, TRUE);
1016                 children->list = g_slist_remove(children->list, child_info);
1017                 g_free(child_info);
1018                 cur = children->list;
1019         }
1020         g_free(children);
1021 }
1022
1023 static void update_io_dialog(Children *children)
1024 {
1025         GSList *cur;
1026
1027         debug_print("Updating actions input/output dialog.\n");
1028
1029         if (!children->nb) {
1030                 gtk_widget_set_sensitive(children->abort_btn, FALSE);
1031                 gtk_widget_set_sensitive(children->close_btn, TRUE);
1032                 if (children->input_hbox)
1033                         gtk_widget_set_sensitive(children->input_hbox, FALSE);
1034                 gtk_widget_grab_focus(children->close_btn);
1035                 gtk_signal_connect(GTK_OBJECT(children->dialog),
1036                                    "key_press_event",
1037                                    GTK_SIGNAL_FUNC(io_dialog_key_pressed_cb),
1038                                    children);
1039         }
1040
1041         if (children->output) {
1042                 GtkWidget *text = children->text;
1043                 gchar *caption;
1044                 ChildInfo *child_info;
1045
1046                 gtk_widget_show(children->scrolledwin);
1047                 gtk_text_freeze(GTK_TEXT(text));
1048                 gtk_text_set_point(GTK_TEXT(text), 0);
1049                 gtk_text_forward_delete(GTK_TEXT(text),
1050                                         gtk_text_get_length(GTK_TEXT(text)));
1051                 for (cur = children->list; cur; cur = cur->next) {
1052                         child_info = (ChildInfo *)cur->data;
1053                         if (child_info->pid)
1054                                 caption = g_strdup_printf
1055                                         (_("--- Running: %s\n"),
1056                                          child_info->cmd);
1057                         else
1058                                 caption = g_strdup_printf
1059                                         (_("--- Ended: %s\n"),
1060                                          child_info->cmd);
1061
1062                         gtk_text_insert(GTK_TEXT(text), NULL, NULL, NULL,
1063                                         caption, -1);
1064                         gtk_text_insert(GTK_TEXT(text), NULL, NULL, NULL,
1065                                         child_info->output->str, -1);
1066                         g_free(caption);
1067                         child_info->new_out = FALSE;
1068                 }
1069                 gtk_text_thaw(GTK_TEXT(text));
1070         }
1071 }
1072
1073 static void create_io_dialog(Children *children)
1074 {
1075         GtkWidget *dialog;
1076         GtkWidget *vbox;
1077         GtkWidget *entry = NULL;
1078         GtkWidget *input_hbox = NULL;
1079         GtkWidget *send_button;
1080         GtkWidget *label;
1081         GtkWidget *text;
1082         GtkWidget *scrolledwin;
1083         GtkWidget *hbox;
1084         GtkWidget *abort_button;
1085         GtkWidget *close_button;
1086
1087         debug_print("Creating action IO dialog\n");
1088
1089         dialog = gtk_dialog_new();
1090         gtk_container_set_border_width
1091                 (GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 5);
1092         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
1093         gtk_window_set_title(GTK_WINDOW(dialog), _("Action's input/output"));
1094         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
1095         manage_window_set_transient(GTK_WINDOW(dialog));
1096         gtk_signal_connect(GTK_OBJECT(dialog), "delete_event",
1097                         GTK_SIGNAL_FUNC(delete_io_dialog_cb), children);
1098         gtk_signal_connect(GTK_OBJECT(dialog), "destroy",
1099                         GTK_SIGNAL_FUNC(hide_io_dialog_cb),
1100                         children);
1101
1102         vbox = gtk_vbox_new(FALSE, 8);
1103         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), vbox);
1104         gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
1105         gtk_widget_show(vbox);
1106
1107         label = gtk_label_new(children->action);
1108         gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
1109         gtk_widget_show(label);
1110
1111         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
1112         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
1113                                        GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
1114         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
1115         gtk_widget_set_usize(scrolledwin, 480, 200);
1116         gtk_widget_hide(scrolledwin);
1117
1118         text = gtk_text_new(gtk_scrolled_window_get_hadjustment
1119                             (GTK_SCROLLED_WINDOW(scrolledwin)),
1120                             gtk_scrolled_window_get_vadjustment
1121                             (GTK_SCROLLED_WINDOW(scrolledwin)));
1122         gtk_text_set_editable(GTK_TEXT(text), FALSE);
1123         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
1124         gtk_widget_show(text);
1125
1126         if (children->open_in) {
1127                 input_hbox = gtk_hbox_new(FALSE, 8);
1128                 gtk_widget_show(input_hbox);
1129
1130                 entry = gtk_entry_new();
1131                 gtk_widget_set_usize(entry, 320, -1);
1132                 gtk_signal_connect(GTK_OBJECT(entry), "activate",
1133                                    GTK_SIGNAL_FUNC(send_input), children);
1134                 gtk_box_pack_start(GTK_BOX(input_hbox), entry, TRUE, TRUE, 0);
1135                 if (children->open_in & ACTION_USER_HIDDEN_IN)
1136                         gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE);
1137                 gtk_widget_show(entry);
1138
1139                 send_button = gtk_button_new_with_label(_(" Send "));
1140                 gtk_signal_connect(GTK_OBJECT(send_button), "clicked",
1141                                    GTK_SIGNAL_FUNC(send_input), children);
1142                 gtk_box_pack_start(GTK_BOX(input_hbox), send_button, FALSE,
1143                                    FALSE, 0);
1144                 gtk_widget_show(send_button);
1145
1146                 gtk_box_pack_start(GTK_BOX(vbox), input_hbox, FALSE, FALSE, 0);
1147                 gtk_widget_grab_focus(entry);
1148         }
1149
1150         gtkut_button_set_create(&hbox, &abort_button, _("Abort"),
1151                                 &close_button, _("Close"), NULL, NULL);
1152         gtk_signal_connect(GTK_OBJECT(abort_button), "clicked",
1153                         GTK_SIGNAL_FUNC(kill_children_cb), children);
1154         gtk_signal_connect(GTK_OBJECT(close_button), "clicked",
1155                         GTK_SIGNAL_FUNC(hide_io_dialog_cb), children);
1156         gtk_widget_show(hbox);
1157
1158         if (children->nb)
1159                 gtk_widget_set_sensitive(close_button, FALSE);
1160
1161         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), hbox);
1162
1163         children->dialog      = dialog;
1164         children->scrolledwin = scrolledwin;
1165         children->text        = text;
1166         children->input_hbox  = children->open_in ? input_hbox : NULL;
1167         children->input_entry = children->open_in ? entry : NULL;
1168         children->abort_btn   = abort_button;
1169         children->close_btn   = close_button;
1170
1171         gtk_widget_show(dialog);
1172 }
1173
1174 static void catch_status(gpointer data, gint source, GdkInputCondition cond)
1175 {
1176         ChildInfo *child_info = (ChildInfo *)data;
1177         gchar buf;
1178         gint c;
1179
1180         gdk_input_remove(child_info->tag_status);
1181
1182         c = read(source, &buf, 1);
1183         debug_print("Child returned %c\n", buf);
1184
1185         waitpid(-child_info->pid, NULL, 0);
1186         childinfo_close_pipes(child_info);
1187         child_info->pid = 0;
1188
1189         wait_for_children(child_info->children);
1190 }
1191
1192 static void catch_input(gpointer data, gint source, GdkInputCondition cond)
1193 {
1194         Children *children = (Children *)data;
1195         ChildInfo *child_info = (ChildInfo *)children->list->data;
1196         gchar *input;
1197         gint c, count, len;
1198
1199         debug_print("Sending input to grand child.\n");
1200         if (!(cond && GDK_INPUT_WRITE))
1201                 return;
1202
1203         gdk_input_remove(child_info->tag_in);
1204         child_info->tag_in = -1;
1205
1206         input = gtk_editable_get_chars(GTK_EDITABLE(children->input_entry),
1207                                        0, -1);
1208         len = strlen(input);
1209         count = 0;
1210
1211         do {
1212                 c = write(child_info->chld_in, input + count, len - count);
1213                 if (c >= 0)
1214                         count += c;
1215         } while (c >= 0 && count < len);
1216
1217         if (c >= 0)
1218                 write(child_info->chld_in, "\n", 2);
1219
1220         g_free(input);
1221
1222         gtk_entry_set_text(GTK_ENTRY(children->input_entry), "");
1223         gtk_widget_set_sensitive(children->input_hbox, TRUE);
1224         close(child_info->chld_in);
1225         child_info->chld_in = -1;
1226         debug_print("Input to grand child sent.\n");
1227 }
1228
1229 static void catch_output(gpointer data, gint source, GdkInputCondition cond)
1230 {
1231         ChildInfo *child_info = (ChildInfo *)data;
1232         gint c, i;
1233         gchar buf[BUFFSIZE];
1234
1235         debug_print("Catching grand child's output.\n");
1236         if (child_info->type & (ACTION_PIPE_OUT | ACTION_INSERT)
1237             && source == child_info->chld_out) {
1238                 gboolean is_selection = FALSE;
1239                 GtkWidget *text = child_info->text;
1240                 if (GTK_EDITABLE(text)->has_selection)
1241                         is_selection = TRUE;
1242                 gtk_stext_freeze(GTK_STEXT(text));
1243                 while (TRUE) {
1244                         c = read(source, buf, sizeof(buf) - 1);
1245                         if (c == 0)
1246                                 break;
1247                         gtk_stext_insert(GTK_STEXT(text), child_info->msgfont,
1248                                          NULL, NULL, buf, c);
1249                 }
1250                 if (is_selection) {
1251                         /* Using the select_region draws things. Should not.
1252                          * so we just change selection position and
1253                          * defere drawing when thawing. Hack?
1254                          */
1255                         GTK_EDITABLE(text)->selection_end_pos =
1256                                         gtk_stext_get_point(GTK_STEXT(text));
1257                 }
1258                 gtk_stext_thaw(GTK_STEXT(child_info->text));
1259         } else {
1260                 c = read(source, buf, sizeof(buf) - 1);
1261                 for (i = 0; i < c; i++)
1262                         g_string_append_c(child_info->output, buf[i]);
1263                 if (c > 0)
1264                         child_info->new_out = TRUE;
1265         }
1266         wait_for_children(child_info->children);
1267 }
1268
1269 static gboolean user_string_dialog_delete_cb(GtkWidget *widget,
1270                                              GdkEvent *event, gpointer data)
1271 {
1272         return FALSE;
1273 }
1274
1275 static void user_string_dialog_destroy_cb(GtkWidget *widget, gpointer data)
1276 {
1277         gtk_main_quit();
1278 }
1279
1280 static gchar *get_user_string(const gchar *action, ActionType type)
1281 {
1282         gchar *message;
1283         gchar *user_str = NULL;
1284
1285         switch (type) {
1286         case ACTION_USER_HIDDEN_STR:
1287                 message = g_strdup_printf
1288                         (_("Enter the argument for the following action:\n"
1289                            "(`%%h' will be replaced with the argument)\n"
1290                            "  %s"),
1291                          action);
1292                 user_str = input_dialog_with_invisible
1293                         (_("Action's hidden user argument"), message, NULL);
1294                 break;
1295         case ACTION_USER_STR:
1296                 message = g_strdup_printf
1297                         (_("Enter the argument for the following action:\n"
1298                            "(`%%u' will be replaced with the argument)\n"
1299                            "  %s"),
1300                          action);
1301                 user_str = input_dialog
1302                         (_("Action's user argument"), message, NULL);
1303                 break;
1304         default:
1305                 g_warning("Unsupported action type %d", type);
1306         }
1307
1308         return user_str;
1309 }