src/action.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2003 Hiroyuki Yamamoto & The Sylpheed Claws Team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <gtk/gtk.h>
  28 #include <gdk/gdkkeysyms.h>
  29 #ifdef GDK_WINDOWING_X11
  30 #       include <gdk/gdkx.h>
  31 #endif /* GDK_WINDOWING_X11 */
  32 #include <stdio.h>
  33 #include <stdlib.h>
  34 #include <string.h>
  35 #include <errno.h>
  36 #include <sys/types.h>
  37 #include <sys/wait.h>
  38 #include <signal.h>
  39 #include <unistd.h>
  40
  41 #include "intl.h"
  42 #include "utils.h"
  43 #include "gtkutils.h"
  44 #include "manage_window.h"
  45 #include "mainwindow.h"
  46 #include "prefs_common.h"
  47 #include "alertpanel.h"
  48 #include "inputdialog.h"
  49 #include "action.h"
  50 #include "compose.h"
  51 #include "procmsg.h"
  52 #include "textview.h"
  53
  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       *progress_bar;
  65         GtkWidget       *abort_btn;
  66         GtkWidget       *close_btn;
  67         GtkWidget       *scrolledwin;
  68
  69         gchar           *action;
  70         ActionType       action_type;
  71         GSList          *list;
  72         gint             nb;
  73         gint             initial_nb;
  74         gint             open_in;
  75         gboolean         output;
  76
  77         GtkWidget       *msg_text;
  78
  79         gboolean         is_selection;
  80 };
  81
  82 struct _ChildInfo
  83 {
  84         Children        *children;
  85         gchar           *cmd;
  86         pid_t            pid;
  87         gint             chld_in;
  88         gint             chld_out;
  89         gint             chld_err;
  90         gint             chld_status;
  91         gint             tag_in;
  92         gint             tag_out;
  93         gint             tag_err;
  94         gint             tag_status;
  95         gint             new_out;
  96
  97         GString         *output;
  98 };
  99
 100 static void action_update_menu          (GtkItemFactory *ifactory,
 101                                          gchar          *branch_path,
 102                                          gpointer        callback,
 103                                          gpointer        data);
 104 static void compose_actions_execute_cb  (Compose        *compose,
 105                                          guint           action_nb,
 106                                          GtkWidget      *widget);
 107 static void mainwin_actions_execute_cb  (MainWindow     *mainwin,
 108                                          guint           action_nb,
 109                                          GtkWidget      *widget);
 110 static void msgview_actions_execute_cb  (MessageView    *msgview,
 111                                          guint           action_nb,
 112                                          GtkWidget      *widget);
 113 static void message_actions_execute     (MessageView    *msgview,
 114                                          guint           action_nb,
 115                                          GSList         *msg_list);
 116
 117 static gboolean execute_actions         (gchar          *action,
 118                                          GSList         *msg_list,
 119                                          GtkWidget      *text,
 120                                          gint            body_pos,
 121                                          MimeInfo       *partinfo);
 122
 123 static gchar *parse_action_cmd          (gchar          *action,
 124                                          MsgInfo        *msginfo,
 125                                          GSList         *msg_list,
 126                                          MimeInfo       *partinfo,
 127                                          const gchar    *user_str,
 128                                          const gchar    *user_hidden_str,
 129                                          const gchar    *sel_str);
 130 static gboolean parse_append_filename   (GString        *cmd,
 131                                          MsgInfo        *msginfo);
 132
 133 static gboolean parse_append_msgpart    (GString        *cmd,
 134                                          MsgInfo        *msginfo,
 135                                          MimeInfo       *partinfo);
 136
 137 static ChildInfo *fork_child            (gchar          *cmd,
 138                                          const gchar    *msg_str,
 139                                          Children       *children);
 140
 141 static gint wait_for_children           (Children       *children);
 142
 143 static void free_children               (Children       *children);
 144
 145 static void childinfo_close_pipes       (ChildInfo      *child_info);
 146
 147 static void create_io_dialog            (Children       *children);
 148 static void update_io_dialog            (Children       *children);
 149
 150 static void hide_io_dialog_cb           (GtkWidget      *widget,
 151                                          gpointer        data);
 152 static gint io_dialog_key_pressed_cb    (GtkWidget      *widget,
 153                                          GdkEventKey    *event,
 154                                          gpointer        data);
 155
 156 static void catch_output                (gpointer                data,
 157                                          gint                    source,
 158                                          GdkInputCondition       cond);
 159 static void catch_input                 (gpointer                data,
 160                                          gint                    source,
 161                                          GdkInputCondition       cond);
 162 static void catch_status                (gpointer                data,
 163                                          gint                    source,
 164                                          GdkInputCondition       cond);
 165
 166 static gchar *get_user_string           (const gchar    *action,
 167                                          ActionType      type);
 168
 169
 170 ActionType action_get_type(const gchar *action_str)
 171 {
 172         const gchar *p;
 173         ActionType action_type = ACTION_NONE;
 174
 175         g_return_val_if_fail(action_str,  ACTION_ERROR);
 176         g_return_val_if_fail(*action_str, ACTION_ERROR);
 177
 178         p = action_str;
 179
 180         if (p[0] == '|') {
 181                 action_type |= ACTION_PIPE_IN;
 182                 p++;
 183         } else if (p[0] == '>') {
 184                 action_type |= ACTION_USER_IN;
 185                 p++;
 186         } else if (p[0] == '*') {
 187                 action_type |= ACTION_USER_HIDDEN_IN;
 188                 p++;
 189         }
 190
 191         if (p[0] == '\0')
 192                 return ACTION_ERROR;
 193
 194         while (*p && action_type != ACTION_ERROR) {
 195                 if (p[0] == '%') {
 196                         switch (p[1]) {
 197                         case 'f':
 198                                 action_type |= ACTION_SINGLE;
 199                                 break;
 200                         case 'F':
 201                                 action_type |= ACTION_MULTIPLE;
 202                                 break;
 203                         case 'p':
 204                                 action_type |= ACTION_SINGLE;
 205                                 break;
 206                         case 's':
 207                                 action_type |= ACTION_SELECTION_STR;
 208                                 break;
 209                         case 'u':
 210                                 action_type |= ACTION_USER_STR;
 211                                 break;
 212                         case 'h':
 213                                 action_type |= ACTION_USER_HIDDEN_STR;
 214                                 break;
 215                         default:
 216                                 action_type = ACTION_ERROR;
 217                                 break;
 218                         }
 219                 } else if (p[0] == '|') {
 220                         if (p[1] == '\0')
 221                                 action_type |= ACTION_PIPE_OUT;
 222                 } else if (p[0] == '>') {
 223                         if (p[1] == '\0')
 224                                 action_type |= ACTION_INSERT;
 225                 } else if (p[0] == '&') {
 226                         if (p[1] == '\0')
 227                                 action_type |= ACTION_ASYNC;
 228                 }
 229                 p++;
 230         }
 231
 232         return action_type;
 233 }
 234
 235 static gchar *parse_action_cmd(gchar *action, MsgInfo *msginfo,
 236                                GSList *msg_list, MimeInfo *partinfo,
 237                                const gchar *user_str,
 238                                const gchar *user_hidden_str,
 239                                const gchar *sel_str)
 240 {
 241         GString *cmd;
 242         gchar *p;
 243         GSList *cur;
 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 = msg_list; cur != NULL;
 265                                      cur = cur->next) {
 266                                         MsgInfo *msg = (MsgInfo *)cur->data;
 267
 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                                                           partinfo)) {
 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                                      MimeInfo *partinfo)
 342 {
 343         gboolean single_part = FALSE;
 344         gchar *filename;
 345         gchar *part_filename;
 346         gint ret;
 347
 348         if (!partinfo) {
 349                 partinfo = procmime_scan_message(msginfo);
 350                 if (!partinfo) {
 351                         alertpanel_error(_("Could not get message part."));
 352                         return FALSE;
 353                 }
 354
 355                 single_part = TRUE;
 356         }
 357
 358         filename = procmsg_get_message_file_path(msginfo);
 359         part_filename = procmime_get_tmp_file_name(partinfo);
 360
 361         ret = procmime_get_part(part_filename, filename, partinfo);
 362
 363         if (single_part)
 364                 procmime_mimeinfo_free_all(partinfo);
 365         g_free(filename);
 366
 367         if (ret < 0) {
 368                 alertpanel_error(_("Can't get part of multipart message"));
 369                 g_free(part_filename);
 370                 return FALSE;
 371         }
 372
 373         g_string_append(cmd, part_filename);
 374
 375         g_free(part_filename);
 376
 377         return TRUE;
 378 }
 379
 380 void actions_execute(gpointer data,
 381                      guint action_nb,
 382                      GtkWidget *widget,
 383                      gint source)
 384 {
 385         if (source == TOOLBAR_MAIN)
 386                 mainwin_actions_execute_cb((MainWindow*)data, action_nb, widget);
 387         else if (source == TOOLBAR_COMPOSE)
 388                 compose_actions_execute_cb((Compose*)data, action_nb, widget);
 389         else if (source == TOOLBAR_MSGVIEW)
 390                 msgview_actions_execute_cb((MessageView*)data, action_nb, widget);
 391 }
 392
 393 void action_update_mainwin_menu(GtkItemFactory *ifactory, MainWindow *mainwin)
 394 {
 395         action_update_menu(ifactory, "/Tools/Actions",
 396                            mainwin_actions_execute_cb, mainwin);
 397 }
 398
 399 void action_update_msgview_menu(GtkItemFactory *ifactory, MessageView *msgview)
 400 {
 401         action_update_menu(ifactory, "/Tools/Actions",
 402                            msgview_actions_execute_cb, msgview);
 403 }
 404
 405 void action_update_compose_menu(GtkItemFactory *ifactory, Compose *compose)
 406 {
 407         action_update_menu(ifactory, "/Tools/Actions",
 408                            compose_actions_execute_cb, compose);
 409 }
 410
 411 static void action_update_menu(GtkItemFactory *ifactory, gchar *branch_path,
 412                                gpointer callback, gpointer data)
 413 {
 414         GtkWidget *menuitem;
 415         gchar *menu_path;
 416         GSList *cur;
 417         gchar *action, *action_p;
 418         GList *amenu;
 419         GtkItemFactoryEntry ifentry = {NULL, NULL, NULL, 0, "<Branch>"};
 420
 421         ifentry.path = branch_path;
 422         menuitem = gtk_item_factory_get_widget(ifactory, branch_path);
 423         g_return_if_fail(menuitem != NULL);
 424
 425         amenu = GTK_MENU_SHELL(menuitem)->children;
 426         while (amenu != NULL) {
 427                 GList *alist = amenu->next;
 428                 gtk_widget_destroy(GTK_WIDGET(amenu->data));
 429                 amenu = alist;
 430         }
 431
 432         ifentry.accelerator     = NULL;
 433         ifentry.callback_action = 0;
 434         ifentry.callback        = callback;
 435         ifentry.item_type       = NULL;
 436
 437         for (cur = prefs_common.actions_list; cur; cur = cur->next) {
 438                 action   = g_strdup((gchar *)cur->data);
 439                 action_p = strstr(action, ": ");
 440                 if (action_p && action_p[2] &&
 441                     action_get_type(&action_p[2]) != ACTION_ERROR) {
 442                         action_p[0] = 0x00;
 443                         menu_path = g_strdup_printf("%s/%s", branch_path,
 444                                                     action);
 445                         ifentry.path = menu_path;
 446                         gtk_item_factory_create_item(ifactory, &ifentry, data,
 447                                                      1);
 448                         g_free(menu_path);
 449                 }
 450                 g_free(action);
 451                 ifentry.callback_action++;
 452         }
 453 }
 454
 455 static void compose_actions_execute_cb(Compose *compose, guint action_nb,
 456                                        GtkWidget *widget)
 457 {
 458         gchar *buf, *action;
 459         ActionType action_type;
 460
 461         g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));
 462
 463         buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
 464         g_return_if_fail(buf != NULL);
 465         action = strstr(buf, ": ");
 466         g_return_if_fail(action != NULL);
 467
 468         /* Point to the beginning of the command-line */
 469         action += 2;
 470
 471         action_type = action_get_type(action);
 472         if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE)) {
 473                 alertpanel_warning
 474                         (_("The selected action cannot be used in the compose window\n"
 475                            "because it contains %%f, %%F or %%p."));
 476                 return;
 477         }
 478
 479         execute_actions(action, NULL, compose->text, 0, NULL);
 480 }
 481
 482 static void mainwin_actions_execute_cb(MainWindow *mainwin, guint action_nb,
 483                                        GtkWidget *widget)
 484 {
 485         GSList *msg_list;
 486
 487         msg_list = summary_get_selected_msg_list(mainwin->summaryview);
 488         message_actions_execute(mainwin->messageview, action_nb, msg_list);
 489         g_slist_free(msg_list);
 490 }
 491
 492 static void msgview_actions_execute_cb(MessageView *msgview, guint action_nb,
 493                                        GtkWidget *widget)
 494 {
 495         GSList *msg_list = NULL;
 496
 497         if (msgview->msginfo)
 498                 msg_list = g_slist_append(msg_list, msgview->msginfo);
 499         message_actions_execute(msgview, action_nb, msg_list);
 500         g_slist_free(msg_list);
 501 }
 502
 503 static void message_actions_execute(MessageView *msgview, guint action_nb,
 504                                     GSList *msg_list)
 505 {
 506         TextView *textview;
 507         MimeInfo *partinfo;
 508         gchar *buf;
 509         gchar *action;
 510         GtkWidget *text = NULL;
 511         guint body_pos = 0;
 512         ActionType action_type;
 513
 514         g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));
 515
 516         buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
 517
 518         g_return_if_fail(buf);
 519         g_return_if_fail((action = strstr(buf, ": ")));
 520
 521         /* Point to the beginning of the command-line */
 522         action += 2;
 523
 524         textview = messageview_get_current_textview(msgview);
 525         if (textview) {
 526                 text     = textview->text;
 527                 body_pos = textview->body_pos;
 528         }
 529         partinfo = messageview_get_selected_mime_part(msgview);
 530
 531         /* this command will alter the message text */
 532         action_type = action_get_type(action);
 533         if (action_type & (ACTION_PIPE_OUT | ACTION_INSERT))
 534                 msgview->filtered = TRUE;
 535
 536         execute_actions(action, msg_list, text, body_pos, partinfo);
 537 }
 538
 539 static gboolean execute_actions(gchar *action, GSList *msg_list,
 540                                 GtkWidget *text,
 541                                 gint body_pos, MimeInfo *partinfo)
 542 {
 543         GSList *children_list = NULL;
 544         gint is_ok  = TRUE;
 545         gint msg_list_len;
 546         Children *children;
 547         ChildInfo *child_info;
 548         ActionType action_type;
 549         MsgInfo *msginfo;
 550         gchar *cmd;
 551         gchar *sel_str = NULL;
 552         gchar *msg_str = NULL;
 553         gchar *user_str = NULL;
 554         gchar *user_hidden_str = NULL;
 555         GtkTextIter start_iter, end_iter;
 556         gboolean is_selection = FALSE;
 557
 558         g_return_val_if_fail(action && *action, FALSE);
 559
 560         action_type = action_get_type(action);
 561
 562         if (action_type == ACTION_ERROR)
 563                 return FALSE;         /* ERR: syntax error */
 564
 565         if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE) && !msg_list)
 566                 return FALSE;         /* ERR: file command without selection */
 567
 568         msg_list_len = g_slist_length(msg_list);
 569
 570         if (action_type & (ACTION_PIPE_OUT | ACTION_PIPE_IN | ACTION_INSERT)) {
 571                 if (msg_list_len > 1)
 572                         return FALSE; /* ERR: pipe + multiple selection */
 573                 if (!text)
 574                         return FALSE; /* ERR: pipe and no displayed text */
 575         }
 576
 577         if (action_type & ACTION_SELECTION_STR) {
 578                 if (!text)
 579                         return FALSE; /* ERR: selection string but no text */
 580         }
 581
 582         if (text) {
 583                 GtkTextBuffer *textbuf;
 584
 585                 textbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 586                 is_selection = gtk_text_buffer_get_selection_bounds(textbuf,
 587                                                                     &start_iter,
 588                                                                     &end_iter);
 589                 if (!is_selection) {
 590                         gtk_text_buffer_get_start_iter(textbuf, &start_iter);
 591                         gtk_text_buffer_get_end_iter(textbuf, &end_iter);
 592                 }
 593                 msg_str = gtk_text_buffer_get_text(textbuf,
 594                                                    &start_iter, &end_iter,
 595                                                    FALSE);
 596                 if (is_selection)
 597                         sel_str = g_strdup (msg_str);
 598         }
 599
 600         if (action_type & ACTION_USER_STR) {
 601                 if (!(user_str = get_user_string(action, ACTION_USER_STR))) {
 602                         g_free(msg_str);
 603                         g_free(sel_str);
 604                         return FALSE;
 605                 }
 606         }
 607
 608         if (action_type & ACTION_USER_HIDDEN_STR) {
 609                 if (!(user_hidden_str =
 610                         get_user_string(action, ACTION_USER_HIDDEN_STR))) {
 611                         g_free(msg_str);
 612                         g_free(sel_str);
 613                         g_free(user_str);
 614                         return FALSE;
 615                 }
 616         }
 617
 618         if (text && (action_type & ACTION_PIPE_OUT)) {
 619                 GtkTextBuffer *textbuf;
 620                 textbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
 621                 gtk_text_buffer_delete(textbuf, &start_iter, &end_iter);
 622         }
 623
 624         children = g_new0(Children, 1);
 625
 626         children->action      = g_strdup(action);
 627         children->action_type = action_type;
 628         children->msg_text    = text;
 629         children->is_selection = is_selection;
 630
 631         if ((action_type & (ACTION_USER_IN | ACTION_USER_HIDDEN_IN)) &&
 632             ((action_type & ACTION_SINGLE) == 0 || msg_list_len == 1))
 633                 children->open_in = 1;
 634
 635         if (action_type & ACTION_SINGLE) {
 636                 GSList *cur;
 637
 638                 for (cur = msg_list; cur && is_ok == TRUE; cur = cur->next) {
 639                         msginfo = (MsgInfo *)cur->data;
 640                         if (!msginfo) {
 641                                 is_ok  = FALSE; /* ERR: msginfo missing */
 642                                 break;
 643                         }
 644                         cmd = parse_action_cmd(action, msginfo, msg_list,
 645                                                partinfo, user_str,
 646                                                user_hidden_str, sel_str);
 647                         if (!cmd) {
 648                                 debug_print("Action command error\n");
 649                                 is_ok  = FALSE; /* ERR: incorrect command */
 650                                 break;
 651                         }
 652                         if ((child_info = fork_child(cmd, msg_str, children))) {
 653                                 children_list = g_slist_append(children_list,
 654                                                                child_info);
 655                         }
 656                         g_free(cmd);
 657                 }
 658         } else {
 659                 cmd = parse_action_cmd(action, NULL, msg_list, partinfo,
 660                                        user_str, user_hidden_str, sel_str);
 661                 if (cmd) {
 662                         if ((child_info = fork_child(cmd, msg_str, children))) {
 663                                 children_list = g_slist_append(children_list,
 664                                                                child_info);
 665                         }
 666                         g_free(cmd);
 667                 } else
 668                         is_ok  = FALSE;         /* ERR: incorrect command */
 669         }
 670
 671         g_free(msg_str);
 672         g_free(sel_str);
 673         g_free(user_str);
 674         g_free(user_hidden_str);
 675
 676         if (!children_list) {
 677                  /* If not waiting for children, return */
 678                 free_children(children);
 679         } else {
 680                 GSList *cur;
 681
 682                 children->list        = children_list;
 683                 children->nb          = g_slist_length(children_list);
 684                 children->initial_nb  = children->nb;
 685
 686                 for (cur = children_list; cur; cur = cur->next) {
 687                         child_info = (ChildInfo *) cur->data;
 688                         child_info->tag_status =
 689                                 gdk_input_add(child_info->chld_status,
 690                                               GDK_INPUT_READ,
 691                                               catch_status, child_info);
 692                 }
 693
 694                 create_io_dialog(children);
 695         }
 696
 697         return is_ok;
 698 }
 699
 700 static ChildInfo *fork_child(gchar *cmd, const gchar *msg_str,
 701                              Children *children)
 702 {
 703         gint chld_in[2], chld_out[2], chld_err[2], chld_status[2];
 704         gchar *cmdline[4];
 705         pid_t pid, gch_pid;
 706         ChildInfo *child_info;
 707         gint sync;
 708
 709         sync = !(children->action_type & ACTION_ASYNC);
 710
 711         chld_in[0] = chld_in[1] = chld_out[0] = chld_out[1] = chld_err[0]
 712                 = chld_err[1] = chld_status[0] = chld_status[1] = -1;
 713
 714         if (sync) {
 715                 if (pipe(chld_status) || pipe(chld_in) || pipe(chld_out) ||
 716                     pipe(chld_err)) {
 717                         alertpanel_error(_("Command could not be started. "
 718                                            "Pipe creation failed.\n%s"),
 719                                         g_strerror(errno));
 720                         /* Closing fd = -1 fails silently */
 721                         close(chld_in[0]);
 722                         close(chld_in[1]);
 723                         close(chld_out[0]);
 724                         close(chld_out[1]);
 725                         close(chld_err[0]);
 726                         close(chld_err[1]);
 727                         close(chld_status[0]);
 728                         close(chld_status[1]);
 729                         return NULL; /* Pipe error */
 730                 }
 731         }
 732
 733         debug_print("Forking child and grandchild.\n");
 734
 735         pid = fork();
 736         if (pid == 0) { /* Child */
 737                 if (setpgid(0, 0))
 738                         perror("setpgid");
 739
 740 #ifdef GDK_WINDOWING_X11
 741                 close(ConnectionNumber(gdk_display));
 742 #endif /* GDK_WINDOWING_X11 */
 743
 744                 gch_pid = fork();
 745
 746                 if (gch_pid == 0) {
 747                         if (setpgid(0, getppid()))
 748                                 perror("setpgid");
 749
 750                         if (sync) {
 751                                 if (children->action_type &
 752                                     (ACTION_PIPE_IN |
 753                                      ACTION_USER_IN |
 754                                      ACTION_USER_HIDDEN_IN)) {
 755                                         close(fileno(stdin));
 756                                         dup  (chld_in[0]);
 757                                 }
 758                                 close(chld_in[0]);
 759                                 close(chld_in[1]);
 760
 761                                 close(fileno(stdout));
 762                                 dup  (chld_out[1]);
 763                                 close(chld_out[0]);
 764                                 close(chld_out[1]);
 765
 766                                 close(fileno(stderr));
 767                                 dup  (chld_err[1]);
 768                                 close(chld_err[0]);
 769                                 close(chld_err[1]);
 770                         }
 771
 772                         cmdline[0] = "sh";
 773                         cmdline[1] = "-c";
 774                         cmdline[2] = cmd;
 775                         cmdline[3] = 0;
 776                         execvp("/bin/sh", cmdline);
 777
 778                         perror("execvp");
 779                         _exit(1);
 780                 } else if (gch_pid < (pid_t) 0) { /* Fork error */
 781                         if (sync)
 782                                 write(chld_status[1], "1\n", 2);
 783                         perror("fork");
 784                         _exit(1);
 785                 } else { /* Child */
 786                         if (sync) {
 787                                 close(chld_in[0]);
 788                                 close(chld_in[1]);
 789                                 close(chld_out[0]);
 790                                 close(chld_out[1]);
 791                                 close(chld_err[0]);
 792                                 close(chld_err[1]);
 793                                 close(chld_status[0]);
 794
 795                                 debug_print("Child: Waiting for grandchild\n");
 796                                 waitpid(gch_pid, NULL, 0);
 797                                 debug_print("Child: grandchild ended\n");
 798                                 write(chld_status[1], "0\n", 2);
 799                                 close(chld_status[1]);
 800                         }
 801                         _exit(0);
 802                 }
 803         } else if (pid < 0) { /* Fork error */
 804                 alertpanel_error(_("Could not fork to execute the following "
 805                                    "command:\n%s\n%s"),
 806                                  cmd, g_strerror(errno));
 807                 return NULL;
 808         }
 809
 810         /* Parent */
 811
 812         if (!sync) {
 813                 waitpid(pid, NULL, 0);
 814                 return NULL;
 815         }
 816
 817         close(chld_in[0]);
 818         if (!(children->action_type &
 819               (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 820                 close(chld_in[1]);
 821         close(chld_out[1]);
 822         close(chld_err[1]);
 823         close(chld_status[1]);
 824
 825         child_info = g_new0(ChildInfo, 1);
 826
 827         child_info->children    = children;
 828
 829         child_info->pid         = pid;
 830         child_info->cmd         = g_strdup(cmd);
 831         child_info->new_out     = FALSE;
 832         child_info->output      = g_string_new(NULL);
 833         child_info->chld_in     =
 834                 (children->action_type &
 835                  (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN))
 836                         ? chld_in [1] : -1;
 837         child_info->chld_out    = chld_out[0];
 838         child_info->chld_err    = chld_err[0];
 839         child_info->chld_status = chld_status[0];
 840         child_info->tag_in      = -1;
 841         child_info->tag_out     = gdk_input_add(chld_out[0], GDK_INPUT_READ,
 842                                                 catch_output, child_info);
 843         child_info->tag_err     = gdk_input_add(chld_err[0], GDK_INPUT_READ,
 844                                                 catch_output, child_info);
 845
 846         if (!(children->action_type &
 847               (ACTION_PIPE_IN | ACTION_PIPE_OUT | ACTION_INSERT)))
 848                 return child_info;
 849
 850         if ((children->action_type & ACTION_PIPE_IN) && msg_str) {
 851                 write(chld_in[1], msg_str, strlen(msg_str));
 852                 if (!(children->action_type &
 853                       (ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 854                         close(chld_in[1]);
 855                 child_info->chld_in = -1; /* No more input */
 856         }
 857
 858         return child_info;
 859 }
 860
 861 static void kill_children_cb(GtkWidget *widget, gpointer data)
 862 {
 863         GSList *cur;
 864         Children *children = (Children *) data;
 865         ChildInfo *child_info;
 866
 867         for (cur = children->list; cur; cur = cur->next) {
 868                 child_info = (ChildInfo *)(cur->data);
 869                 debug_print("Killing child group id %d\n", child_info->pid);
 870                 if (child_info->pid && kill(-child_info->pid, SIGTERM) < 0)
 871                         perror("kill");
 872         }
 873 }
 874
 875 static gint wait_for_children(Children *children)
 876 {
 877         gboolean new_output;
 878         ChildInfo *child_info;
 879         GSList *cur;
 880         gint nb = children->nb;
 881
 882         children->nb = 0;
 883
 884         cur = children->list;
 885         new_output = FALSE;
 886         while (cur) {
 887                 child_info = (ChildInfo *)cur->data;
 888                 if (child_info->pid)
 889                         children->nb++;
 890                 new_output |= child_info->new_out;
 891                 cur = cur->next;
 892         }
 893
 894         children->output |= new_output;
 895
 896         if (new_output || (children->dialog && (nb != children->nb)))
 897                 update_io_dialog(children);
 898
 899         if (children->nb)
 900                 return FALSE;
 901
 902         if (!children->dialog) {
 903                 free_children(children);
 904         } else if (!children->output) {
 905                 gtk_widget_destroy(children->dialog);
 906         }
 907
 908         return FALSE;
 909 }
 910
 911 static void send_input(GtkWidget *w, gpointer data)
 912 {
 913         Children *children = (Children *) data;
 914         ChildInfo *child_info = (ChildInfo *) children->list->data;
 915
 916         child_info->tag_in = gdk_input_add(child_info->chld_in,
 917                                            GDK_INPUT_WRITE,
 918                                            catch_input, children);
 919         gtk_widget_set_sensitive(children->input_hbox, FALSE);
 920 }
 921
 922 static gint delete_io_dialog_cb(GtkWidget *w, GdkEvent *e, gpointer data)
 923 {
 924         hide_io_dialog_cb(w, data);
 925         return TRUE;
 926 }
 927
 928 static void hide_io_dialog_cb(GtkWidget *w, gpointer data)
 929 {
 930
 931         Children *children = (Children *)data;
 932
 933         if (!children->nb) {
 934                 gtk_signal_disconnect_by_data(GTK_OBJECT(children->dialog),
 935                                               children);
 936                 gtk_widget_destroy(children->dialog);
 937                 free_children(children);
 938         }
 939 }
 940
 941 static gint io_dialog_key_pressed_cb(GtkWidget *widget, GdkEventKey *event,
 942                                      gpointer data)
 943 {
 944         if (event && event->keyval == GDK_Escape)
 945                 hide_io_dialog_cb(widget, data);
 946         return TRUE;
 947 }
 948
 949 static void childinfo_close_pipes(ChildInfo *child_info)
 950 {
 951         /* stdout and stderr pipes are guaranteed to be removed by
 952          * their handler, but in case where we receive child exit notification
 953          * before grand-child's pipes closing signals, we check them and close
 954          * them if necessary
 955          */
 956         if (child_info->tag_in > 0)
 957                 gdk_input_remove(child_info->tag_in);
 958         if (child_info->tag_out > 0)
 959                 gdk_input_remove(child_info->tag_out);
 960         if (child_info->tag_err > 0)
 961                 gdk_input_remove(child_info->tag_err);
 962
 963         if (child_info->chld_in >= 0)
 964                 close(child_info->chld_in);
 965         if (child_info->chld_out >= 0)
 966                 close(child_info->chld_out);
 967         if (child_info->chld_err >= 0)
 968                 close(child_info->chld_err);
 969
 970         close(child_info->chld_status);
 971 }
 972
 973 static void free_children(Children *children)
 974 {
 975         ChildInfo *child_info;
 976
 977         debug_print("Freeing children data %p\n", children);
 978
 979         g_free(children->action);
 980         while (children->list != NULL) {
 981                 child_info = (ChildInfo *)children->list->data;
 982                 g_free(child_info->cmd);
 983                 g_string_free(child_info->output, TRUE);
 984                 children->list = g_slist_remove(children->list, child_info);
 985                 g_free(child_info);
 986         }
 987         g_free(children);
 988 }
 989
 990 static void update_io_dialog(Children *children)
 991 {
 992         GSList *cur;
 993
 994         debug_print("Updating actions input/output dialog.\n");
 995
 996         if (children->progress_bar) {
 997                 gtk_progress_configure(GTK_PROGRESS(children->progress_bar),
 998                                 children->initial_nb -children->nb,
 999                                 0.0, children->initial_nb);
1000         }
1001
1002         if (!children->nb) {
1003                 gtk_widget_set_sensitive(children->abort_btn, FALSE);
1004                 gtk_widget_set_sensitive(children->close_btn, TRUE);
1005                 if (children->input_hbox)
1006                         gtk_widget_set_sensitive(children->input_hbox, FALSE);
1007                 gtk_widget_grab_focus(children->close_btn);
1008                 g_signal_connect(G_OBJECT(children->dialog),
1009                                  "key_press_event",
1010                                  G_CALLBACK(io_dialog_key_pressed_cb),
1011                                  children);
1012         }
1013
1014         if (children->output) {
1015                 GtkWidget *text = children->text;
1016                 gchar *caption;
1017                 ChildInfo *child_info;
1018                 GtkTextBuffer *textbuf;
1019                 GtkTextIter iter, start_iter, end_iter;
1020
1021                 gtk_widget_show(children->scrolledwin);
1022                 textbuf = gtk_text_view_get_buffer (GTK_TEXT_VIEW(text));
1023                 gtk_text_buffer_get_start_iter (textbuf, &start_iter);
1024                 gtk_text_buffer_get_end_iter (textbuf, &end_iter);
1025                 iter = start_iter;
1026                 for (cur = children->list; cur; cur = cur->next) {
1027                         child_info = (ChildInfo *)cur->data;
1028                         if (child_info->pid)
1029                                 caption = g_strdup_printf
1030                                         (_("--- Running: %s\n"),
1031                                          child_info->cmd);
1032                         else
1033                                 caption = g_strdup_printf
1034                                         (_("--- Ended: %s\n"),
1035                                          child_info->cmd);
1036
1037                         gtk_text_buffer_insert(textbuf, &iter,
1038                                                caption, -1);
1039                         gtk_text_buffer_insert(textbuf, &iter,
1040                                                child_info->output->str, -1);
1041                         g_free(caption);
1042                         child_info->new_out = FALSE;
1043                 }
1044         }
1045 }
1046
1047 static void create_io_dialog(Children *children)
1048 {
1049         GtkWidget *dialog;
1050         GtkWidget *vbox;
1051         GtkWidget *entry = NULL;
1052         GtkWidget *input_hbox = NULL;
1053         GtkWidget *send_button;
1054         GtkWidget *label;
1055         GtkWidget *text;
1056         GtkWidget *scrolledwin;
1057         GtkWidget *hbox;
1058         GtkWidget *progress_bar = NULL;
1059         GtkWidget *abort_button;
1060         GtkWidget *close_button;
1061
1062         debug_print("Creating action IO dialog\n");
1063
1064         dialog = gtk_dialog_new();
1065         gtk_container_set_border_width
1066                 (GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 5);
1067         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
1068         gtk_window_set_title(GTK_WINDOW(dialog), _("Action's input/output"));
1069         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
1070         manage_window_set_transient(GTK_WINDOW(dialog));
1071         g_signal_connect(G_OBJECT(dialog), "delete_event",
1072                          G_CALLBACK(delete_io_dialog_cb), children);
1073         g_signal_connect(G_OBJECT(dialog), "destroy",
1074                          G_CALLBACK(hide_io_dialog_cb),
1075                          children);
1076
1077         vbox = gtk_vbox_new(FALSE, 8);
1078         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), vbox);
1079         gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
1080         gtk_widget_show(vbox);
1081
1082         label = gtk_label_new(children->action);
1083         gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
1084         gtk_widget_show(label);
1085
1086         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
1087         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
1088                                        GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
1089         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
1090         gtk_widget_set_size_request(scrolledwin, 480, 200);
1091         gtk_widget_hide(scrolledwin);
1092
1093         text = gtk_text_view_new();
1094         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
1095         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
1096         gtk_widget_show(text);
1097
1098         if (children->open_in) {
1099                 input_hbox = gtk_hbox_new(FALSE, 8);
1100                 gtk_widget_show(input_hbox);
1101
1102                 entry = gtk_entry_new();
1103                 gtk_widget_set_size_request(entry, 320, -1);
1104                 g_signal_connect(G_OBJECT(entry), "activate",
1105                                  G_CALLBACK(send_input), children);
1106                 gtk_box_pack_start(GTK_BOX(input_hbox), entry, TRUE, TRUE, 0);
1107                 if (children->action_type & ACTION_USER_HIDDEN_IN)
1108                         gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE);
1109                 gtk_widget_show(entry);
1110
1111                 send_button = gtk_button_new_with_label(_(" Send "));
1112                 g_signal_connect(G_OBJECT(send_button), "clicked",
1113                                  G_CALLBACK(send_input), children);
1114                 gtk_box_pack_start(GTK_BOX(input_hbox), send_button, FALSE,
1115                                    FALSE, 0);
1116                 gtk_widget_show(send_button);
1117
1118                 gtk_box_pack_start(GTK_BOX(vbox), input_hbox, FALSE, FALSE, 0);
1119                 gtk_widget_grab_focus(entry);
1120         }
1121
1122         if (children->initial_nb > 1) {
1123                 progress_bar = gtk_progress_bar_new();
1124                 gtk_progress_bar_set_bar_style(GTK_PROGRESS_BAR(progress_bar),
1125                                 GTK_PROGRESS_CONTINUOUS);
1126                 gtk_progress_bar_set_orientation(GTK_PROGRESS_BAR(progress_bar),
1127                                 GTK_PROGRESS_LEFT_TO_RIGHT);
1128                 gtk_progress_set_activity_mode(GTK_PROGRESS(progress_bar),
1129                                 FALSE);
1130                 gtk_progress_set_format_string(GTK_PROGRESS(progress_bar),
1131                                 _("Completed %v/%u"));
1132                 gtk_progress_set_show_text(GTK_PROGRESS(progress_bar), TRUE);
1133                 gtk_progress_configure(GTK_PROGRESS(progress_bar),
1134                                 children->initial_nb -children->nb,
1135                                 0.0, children->initial_nb);
1136
1137                 gtk_box_pack_start(GTK_BOX(vbox), progress_bar, TRUE, TRUE, 0);
1138                 gtk_widget_show(progress_bar);
1139         }
1140
1141         gtkut_button_set_create(&hbox, &abort_button, _("Abort"),
1142                                 &close_button, _("Close"), NULL, NULL);
1143         g_signal_connect(G_OBJECT(abort_button), "clicked",
1144                          G_CALLBACK(kill_children_cb), children);
1145         g_signal_connect(G_OBJECT(close_button), "clicked",
1146                          G_CALLBACK(hide_io_dialog_cb), children);
1147         gtk_widget_show(hbox);
1148
1149         if (children->nb)
1150                 gtk_widget_set_sensitive(close_button, FALSE);
1151
1152         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), hbox);
1153
1154         children->dialog       = dialog;
1155         children->scrolledwin  = scrolledwin;
1156         children->text         = text;
1157         children->input_hbox   = children->open_in ? input_hbox : NULL;
1158         children->input_entry  = children->open_in ? entry : NULL;
1159         children->progress_bar = progress_bar;
1160         children->abort_btn    = abort_button;
1161         children->close_btn    = close_button;
1162
1163         gtk_widget_show(dialog);
1164 }
1165
1166 static void catch_status(gpointer data, gint source, GdkInputCondition cond)
1167 {
1168         ChildInfo *child_info = (ChildInfo *)data;
1169         gchar buf;
1170         gint c;
1171
1172         gdk_input_remove(child_info->tag_status);
1173
1174         c = read(source, &buf, 1);
1175         debug_print("Child returned %c\n", buf);
1176
1177         waitpid(-child_info->pid, NULL, 0);
1178         childinfo_close_pipes(child_info);
1179         child_info->pid = 0;
1180
1181         wait_for_children(child_info->children);
1182 }
1183
1184 static void catch_input(gpointer data, gint source, GdkInputCondition cond)
1185 {
1186         Children *children = (Children *)data;
1187         ChildInfo *child_info = (ChildInfo *)children->list->data;
1188         gchar *input;
1189         gint c, count, len;
1190
1191         debug_print("Sending input to grand child.\n");
1192         if (!(cond && GDK_INPUT_WRITE))
1193                 return;
1194
1195         gdk_input_remove(child_info->tag_in);
1196         child_info->tag_in = -1;
1197
1198         input = gtk_editable_get_chars(GTK_EDITABLE(children->input_entry),
1199                                        0, -1);
1200         len = strlen(input);
1201         count = 0;
1202
1203         do {
1204                 c = write(child_info->chld_in, input + count, len - count);
1205                 if (c >= 0)
1206                         count += c;
1207         } while (c >= 0 && count < len);
1208
1209         if (c >= 0)
1210                 write(child_info->chld_in, "\n", 2);
1211
1212         g_free(input);
1213
1214         gtk_entry_set_text(GTK_ENTRY(children->input_entry), "");
1215         gtk_widget_set_sensitive(children->input_hbox, TRUE);
1216         close(child_info->chld_in);
1217         child_info->chld_in = -1;
1218         debug_print("Input to grand child sent.\n");
1219 }
1220
1221 static void catch_output(gpointer data, gint source, GdkInputCondition cond)
1222 {
1223         ChildInfo *child_info = (ChildInfo *)data;
1224         gint c, i;
1225         gchar buf[BUFFSIZE];
1226
1227         debug_print("Catching grand child's output.\n");
1228         if (child_info->children->action_type &
1229             (ACTION_PIPE_OUT | ACTION_INSERT)
1230             && source == child_info->chld_out) {
1231                 GtkTextView *text = GTK_TEXT_VIEW(child_info->children->msg_text);
1232                 GtkTextBuffer *textbuf = gtk_text_view_get_buffer(text);
1233                 GtkTextIter iter1, iter2;
1234                 GtkTextMark *mark;
1235
1236                 mark = gtk_text_buffer_get_insert(textbuf);
1237                 gtk_text_buffer_get_iter_at_mark(textbuf, &iter1, mark);
1238                 gtk_text_buffer_get_iter_at_mark(textbuf, &iter2, mark);
1239
1240                 while (TRUE) {
1241                         c = read(source, buf, sizeof(buf) - 1);
1242                         if (c == 0)
1243                                 break;
1244                         gtk_text_buffer_insert(textbuf, &iter2, buf, c);
1245                 }
1246                 if (child_info->children->is_selection) {
1247                         gtk_text_buffer_place_cursor(textbuf, &iter1);
1248                         gtk_text_buffer_move_mark_by_name
1249                                 (textbuf, "selection_bound", &iter2);
1250                 }
1251         } else {
1252                 c = read(source, buf, sizeof(buf) - 1);
1253                 for (i = 0; i < c; i++)
1254                         g_string_append_c(child_info->output, buf[i]);
1255                 if (c > 0)
1256                         child_info->new_out = TRUE;
1257         }
1258         if (c == 0) {
1259                 if (source == child_info->chld_out) {
1260                         gdk_input_remove(child_info->tag_out);
1261                         child_info->tag_out = -1;
1262                         close(child_info->chld_out);
1263                         child_info->chld_out = -1;
1264                 } else {
1265                         gdk_input_remove(child_info->tag_err);
1266                         child_info->tag_err = -1;
1267                         close(child_info->chld_err);
1268                         child_info->chld_err = -1;
1269                 }
1270         }
1271
1272         wait_for_children(child_info->children);
1273 }
1274
1275 static gchar *get_user_string(const gchar *action, ActionType type)
1276 {
1277         gchar *message;
1278         gchar *user_str = NULL;
1279
1280         switch (type) {
1281         case ACTION_USER_HIDDEN_STR:
1282                 message = g_strdup_printf
1283                         (_("Enter the argument for the following action:\n"
1284                            "(`%%h' will be replaced with the argument)\n"
1285                            "  %s"),
1286                          action);
1287                 user_str = input_dialog_with_invisible
1288                         (_("Action's hidden user argument"), message, NULL);
1289                 break;
1290         case ACTION_USER_STR:
1291                 message = g_strdup_printf
1292                         (_("Enter the argument for the following action:\n"
1293                            "(`%%u' will be replaced with the argument)\n"
1294                            "  %s"),
1295                          action);
1296                 user_str = input_dialog
1297                         (_("Action's user argument"), message, NULL);
1298                 break;
1299         default:
1300                 g_warning("Unsupported action type %d", type);
1301         }
1302
1303         return user_str;
1304 }