src/action.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2003 Hiroyuki Yamamoto & The Sylpheed Claws Team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <gtk/gtk.h>
  28 #include <gdk/gdkkeysyms.h>
  29 #include <gdk/gdkx.h>
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32 #include <string.h>
  33 #include <errno.h>
  34 #include <sys/types.h>
  35 #include <sys/wait.h>
  36 #include <signal.h>
  37 #include <unistd.h>
  38
  39 #include "intl.h"
  40 #include "utils.h"
  41 #include "gtkutils.h"
  42 #include "manage_window.h"
  43 #include "mainwindow.h"
  44 #include "prefs_common.h"
  45 #include "alertpanel.h"
  46 #include "inputdialog.h"
  47 #include "action.h"
  48 #include "compose.h"
  49 #include "procmsg.h"
  50 #include "gtkstext.h"
  51 #include "textview.h"
  52
  53 typedef struct _Children                Children;
  54 typedef struct _ChildInfo               ChildInfo;
  55 typedef struct _UserStringDialog        UserStringDialog;
  56
  57 struct _Children
  58 {
  59         GtkWidget       *dialog;
  60         GtkWidget       *text;
  61         GtkWidget       *input_entry;
  62         GtkWidget       *input_hbox;
  63         GtkWidget       *progress_bar;
  64         GtkWidget       *abort_btn;
  65         GtkWidget       *close_btn;
  66         GtkWidget       *scrolledwin;
  67
  68         gchar           *action;
  69         ActionType       action_type;
  70         GSList          *list;
  71         gint             nb;
  72         gint             initial_nb;
  73         gint             open_in;
  74         gboolean         output;
  75
  76         GtkWidget       *msg_text;
  77         GdkFont         *msgfont;
  78 };
  79
  80 struct _ChildInfo
  81 {
  82         Children        *children;
  83         gchar           *cmd;
  84         pid_t            pid;
  85         gint             chld_in;
  86         gint             chld_out;
  87         gint             chld_err;
  88         gint             chld_status;
  89         gint             tag_in;
  90         gint             tag_out;
  91         gint             tag_err;
  92         gint             tag_status;
  93         gint             new_out;
  94
  95         GString         *output;
  96 };
  97
  98 static void action_update_menu          (GtkItemFactory *ifactory,
  99                                          gchar          *branch_path,
 100                                          gpointer        callback,
 101                                          gpointer        data);
 102 static void compose_actions_execute_cb  (Compose        *compose,
 103                                          guint           action_nb,
 104                                          GtkWidget      *widget);
 105 static void mainwin_actions_execute_cb  (MainWindow     *mainwin,
 106                                          guint           action_nb,
 107                                          GtkWidget      *widget);
 108 static void msgview_actions_execute_cb  (MessageView    *msgview,
 109                                          guint           action_nb,
 110                                          GtkWidget      *widget);
 111 static void message_actions_execute     (MessageView    *msgview,
 112                                          guint           action_nb,
 113                                          GSList         *msg_list);
 114
 115 static gboolean execute_actions         (gchar          *action,
 116                                          GSList         *msg_list,
 117                                          GtkWidget      *text,
 118                                          GdkFont        *msgfont,
 119                                          gint            body_pos,
 120                                          MimeInfo       *partinfo);
 121
 122 static gchar *parse_action_cmd          (gchar          *action,
 123                                          MsgInfo        *msginfo,
 124                                          GSList         *msg_list,
 125                                          MimeInfo       *partinfo,
 126                                          const gchar    *user_str,
 127                                          const gchar    *user_hidden_str,
 128                                          const gchar    *sel_str);
 129 static gboolean parse_append_filename   (GString        *cmd,
 130                                          MsgInfo        *msginfo);
 131
 132 static gboolean parse_append_msgpart    (GString        *cmd,
 133                                          MsgInfo        *msginfo,
 134                                          MimeInfo       *partinfo);
 135
 136 static ChildInfo *fork_child            (gchar          *cmd,
 137                                          const gchar    *msg_str,
 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                                GSList *msg_list, MimeInfo *partinfo,
 236                                const gchar *user_str,
 237                                const gchar *user_hidden_str,
 238                                const gchar *sel_str)
 239 {
 240         GString *cmd;
 241         gchar *p;
 242         GSList *cur;
 243
 244         p = action;
 245
 246         if (p[0] == '|' || p[0] == '>' || p[0] == '*')
 247                 p++;
 248
 249         cmd = g_string_sized_new(strlen(action));
 250
 251         while (p[0] &&
 252                !((p[0] == '|' || p[0] == '>' || p[0] == '&') && !p[1])) {
 253                 if (p[0] == '%' && p[1]) {
 254                         switch (p[1]) {
 255                         case 'f':
 256                                 if (!parse_append_filename(cmd, msginfo)) {
 257                                         g_string_free(cmd, TRUE);
 258                                         return NULL;
 259                                 }
 260                                 p++;
 261                                 break;
 262                         case 'F':
 263                                 for (cur = msg_list; cur != NULL;
 264                                      cur = cur->next) {
 265                                         MsgInfo *msg = (MsgInfo *)cur->data;
 266
 267                                         if (!parse_append_filename(cmd, msg)) {
 268                                                 g_string_free(cmd, TRUE);
 269                                                 return NULL;
 270                                         }
 271                                         if (cur->next)
 272                                                 g_string_append_c(cmd, ' ');
 273                                 }
 274                                 p++;
 275                                 break;
 276                         case 'p':
 277                                 if (!parse_append_msgpart(cmd, msginfo,
 278                                                           partinfo)) {
 279                                         g_string_free(cmd, TRUE);
 280                                         return NULL;
 281                                 }
 282                                 p++;
 283                                 break;
 284                         case 's':
 285                                 if (sel_str)
 286                                         g_string_append(cmd, sel_str);
 287                                 p++;
 288                                 break;
 289                         case 'u':
 290                                 if (user_str)
 291                                         g_string_append(cmd, user_str);
 292                                 p++;
 293                                 break;
 294                         case 'h':
 295                                 if (user_hidden_str)
 296                                         g_string_append(cmd, user_hidden_str);
 297                                 p++;
 298                                 break;
 299                         default:
 300                                 g_string_append_c(cmd, p[0]);
 301                                 g_string_append_c(cmd, p[1]);
 302                                 p++;
 303                         }
 304                 } else {
 305                         g_string_append_c(cmd, p[0]);
 306                 }
 307                 p++;
 308         }
 309         if (cmd->len == 0) {
 310                 g_string_free(cmd, TRUE);
 311                 return NULL;
 312         }
 313
 314         p = cmd->str;
 315         g_string_free(cmd, FALSE);
 316         return p;
 317 }
 318
 319 static gboolean parse_append_filename(GString *cmd, MsgInfo *msginfo)
 320 {
 321         gchar *filename;
 322
 323         g_return_val_if_fail(msginfo, FALSE);
 324
 325         filename = procmsg_get_message_file(msginfo);
 326
 327         if (filename) {
 328                 g_string_append(cmd, filename);
 329                 g_free(filename);
 330         } else {
 331                 alertpanel_error(_("Could not get message file %d"),
 332                                  msginfo->msgnum);
 333                 return FALSE;
 334         }
 335
 336         return TRUE;
 337 }
 338
 339 static gboolean parse_append_msgpart(GString *cmd, MsgInfo *msginfo,
 340                                      MimeInfo *partinfo)
 341 {
 342         gboolean single_part = FALSE;
 343         gchar *filename;
 344         gchar *part_filename;
 345         gint ret;
 346
 347         if (!partinfo) {
 348                 partinfo = procmime_scan_message(msginfo);
 349                 if (!partinfo) {
 350                         alertpanel_error(_("Could not get message part."));
 351                         return FALSE;
 352                 }
 353
 354                 single_part = TRUE;
 355         }
 356
 357         filename = procmsg_get_message_file_path(msginfo);
 358         part_filename = procmime_get_tmp_file_name(partinfo);
 359
 360         ret = procmime_get_part(part_filename, filename, partinfo);
 361
 362         if (single_part)
 363                 procmime_mimeinfo_free_all(partinfo);
 364         g_free(filename);
 365
 366         if (ret < 0) {
 367                 alertpanel_error(_("Can't get part of multipart message"));
 368                 g_free(part_filename);
 369                 return FALSE;
 370         }
 371
 372         g_string_append(cmd, part_filename);
 373
 374         g_free(part_filename);
 375
 376         return TRUE;
 377 }
 378
 379 void actions_execute(gpointer data,
 380                      guint action_nb,
 381                      GtkWidget *widget,
 382                      gint source)
 383 {
 384         if (source == TOOLBAR_MAIN)
 385                 mainwin_actions_execute_cb((MainWindow*)data, action_nb, widget);
 386         else if (source == TOOLBAR_COMPOSE)
 387                 compose_actions_execute_cb((Compose*)data, action_nb, widget);
 388         else if (source == TOOLBAR_MSGVIEW)
 389                 msgview_actions_execute_cb((MessageView*)data, action_nb, widget);
 390 }
 391
 392 void action_update_mainwin_menu(GtkItemFactory *ifactory, MainWindow *mainwin)
 393 {
 394         action_update_menu(ifactory, "/Tools/Actions",
 395                            mainwin_actions_execute_cb, mainwin);
 396 }
 397
 398 void action_update_msgview_menu(GtkItemFactory *ifactory, MessageView *msgview)
 399 {
 400         action_update_menu(ifactory, "/Tools/Actions",
 401                            msgview_actions_execute_cb, msgview);
 402 }
 403
 404 void action_update_compose_menu(GtkItemFactory *ifactory, Compose *compose)
 405 {
 406         action_update_menu(ifactory, "/Tools/Actions",
 407                            compose_actions_execute_cb, compose);
 408 }
 409
 410 static void action_update_menu(GtkItemFactory *ifactory, gchar *branch_path,
 411                                gpointer callback, gpointer data)
 412 {
 413         GtkWidget *menuitem;
 414         gchar *menu_path;
 415         GSList *cur;
 416         gchar *action, *action_p;
 417         GList *amenu;
 418         GtkItemFactoryEntry ifentry = {NULL, NULL, NULL, 0, "<Branch>"};
 419
 420         ifentry.path = branch_path;
 421         menuitem = gtk_item_factory_get_widget(ifactory, branch_path);
 422         g_return_if_fail(menuitem != NULL);
 423
 424         amenu = GTK_MENU_SHELL(menuitem)->children;
 425         while (amenu != NULL) {
 426                 GList *alist = amenu->next;
 427                 gtk_widget_destroy(GTK_WIDGET(amenu->data));
 428                 amenu = alist;
 429         }
 430
 431         ifentry.accelerator     = NULL;
 432         ifentry.callback_action = 0;
 433         ifentry.callback        = callback;
 434         ifentry.item_type       = NULL;
 435
 436         for (cur = prefs_common.actions_list; cur; cur = cur->next) {
 437                 action   = g_strdup((gchar *)cur->data);
 438                 action_p = strstr(action, ": ");
 439                 if (action_p && action_p[2] &&
 440                     action_get_type(&action_p[2]) != ACTION_ERROR) {
 441                         action_p[0] = 0x00;
 442                         menu_path = g_strdup_printf("%s/%s", branch_path,
 443                                                     action);
 444                         ifentry.path = menu_path;
 445                         gtk_item_factory_create_item(ifactory, &ifentry, data,
 446                                                      1);
 447                         g_free(menu_path);
 448                 }
 449                 g_free(action);
 450                 ifentry.callback_action++;
 451         }
 452 }
 453
 454 static void compose_actions_execute_cb(Compose *compose, guint action_nb,
 455                                        GtkWidget *widget)
 456 {
 457         gchar *buf, *action;
 458         ActionType action_type;
 459
 460         g_return_if_fail(action_nb < g_slist_length(prefs_common.actions_list));
 461
 462         buf = (gchar *)g_slist_nth_data(prefs_common.actions_list, action_nb);
 463         g_return_if_fail(buf != NULL);
 464         action = strstr(buf, ": ");
 465         g_return_if_fail(action != NULL);
 466
 467         /* Point to the beginning of the command-line */
 468         action += 2;
 469
 470         action_type = action_get_type(action);
 471         if (action_type & (ACTION_SINGLE | ACTION_MULTIPLE)) {
 472                 alertpanel_warning
 473                         (_("The selected action cannot be used in the compose window\n"
 474                            "because it contains %%f, %%F or %%p."));
 475                 return;
 476         }
 477
 478         execute_actions(action, NULL, compose->text, NULL, 0, NULL);
 479 }
 480
 481 static void mainwin_actions_execute_cb(MainWindow *mainwin, guint action_nb,
 482                                        GtkWidget *widget)
 483 {
 484         GSList *msg_list;
 485
 486         msg_list = summary_get_selected_msg_list(mainwin->summaryview);
 487         message_actions_execute(mainwin->messageview, action_nb, msg_list);
 488         g_slist_free(msg_list);
 489 }
 490
 491 static void msgview_actions_execute_cb(MessageView *msgview, guint action_nb,
 492                                        GtkWidget *widget)
 493 {
 494         GSList *msg_list = NULL;
 495
 496         if (msgview->msginfo)
 497                 msg_list = g_slist_append(msg_list, msgview->msginfo);
 498         message_actions_execute(msgview, action_nb, msg_list);
 499         g_slist_free(msg_list);
 500 }
 501
 502 static void message_actions_execute(MessageView *msgview, guint action_nb,
 503                                     GSList *msg_list)
 504 {
 505         TextView *textview;
 506         MimeInfo *partinfo;
 507         gchar *buf;
 508         gchar *action;
 509         GtkWidget *text = NULL;
 510         GdkFont *msgfont = 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                 msgfont  = textview->msgfont;
 528                 body_pos = textview->body_pos;
 529         }
 530         partinfo = messageview_get_selected_mime_part(msgview);
 531
 532         /* this command will alter the message text */
 533         action_type = action_get_type(action);
 534         if (action_type & (ACTION_PIPE_OUT | ACTION_INSERT))
 535                 msgview->filtered = TRUE;
 536
 537         execute_actions(action, msg_list, text, msgfont, body_pos, partinfo);
 538 }
 539
 540 static gboolean execute_actions(gchar *action, GSList *msg_list,
 541                                 GtkWidget *text, GdkFont *msgfont,
 542                                 gint body_pos, MimeInfo *partinfo)
 543 {
 544         GSList *children_list = NULL;
 545         gint is_ok  = TRUE;
 546         gint msg_list_len;
 547         Children *children;
 548         ChildInfo *child_info;
 549         ActionType action_type;
 550         MsgInfo *msginfo;
 551         gchar *cmd;
 552         guint start = 0, end = 0;
 553         gchar *sel_str = NULL;
 554         gchar *msg_str = NULL;
 555         gchar *user_str = NULL;
 556         gchar *user_hidden_str = NULL;
 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                 if (GTK_EDITABLE(text)->has_selection) {
 584                         start = GTK_EDITABLE(text)->selection_start_pos;
 585                         end   = GTK_EDITABLE(text)->selection_end_pos;
 586                         if (start > end) {
 587                                 guint tmp;
 588                                 tmp = start;
 589                                 start = end;
 590                                 end = tmp;
 591                         }
 592
 593                         if (start == end) {
 594                                 start = body_pos;
 595                                 end = gtk_stext_get_length(GTK_STEXT(text));
 596                                 msg_str = gtk_editable_get_chars
 597                                         (GTK_EDITABLE(text), start, end);
 598                         } else {
 599                                 sel_str = gtk_editable_get_chars
 600                                         (GTK_EDITABLE(text), start, end);
 601                                 msg_str = g_strdup(sel_str);
 602                         }
 603                 } else {
 604                         start = body_pos;
 605                         end = gtk_stext_get_length(GTK_STEXT(text));
 606                         msg_str = gtk_editable_get_chars(GTK_EDITABLE(text),
 607                                                          start, end);
 608                 }
 609         }
 610
 611         if (action_type & ACTION_USER_STR) {
 612                 if (!(user_str = get_user_string(action, ACTION_USER_STR))) {
 613                         g_free(msg_str);
 614                         g_free(sel_str);
 615                         return FALSE;
 616                 }
 617         }
 618
 619         if (action_type & ACTION_USER_HIDDEN_STR) {
 620                 if (!(user_hidden_str =
 621                         get_user_string(action, ACTION_USER_HIDDEN_STR))) {
 622                         g_free(msg_str);
 623                         g_free(sel_str);
 624                         g_free(user_str);
 625                         return FALSE;
 626                 }
 627         }
 628
 629         if (action_type & ACTION_PIPE_OUT) {
 630                 gtk_stext_freeze(GTK_STEXT(text));
 631                 gtk_stext_set_point(GTK_STEXT(text), start);
 632                 gtk_stext_forward_delete(GTK_STEXT(text), end - start);
 633                 gtk_stext_thaw(GTK_STEXT(text));
 634         }
 635
 636         children = g_new0(Children, 1);
 637
 638         children->action      = g_strdup(action);
 639         children->action_type = action_type;
 640         children->msg_text    = text;
 641         children->msgfont     = msgfont;
 642
 643         if ((action_type & (ACTION_USER_IN | ACTION_USER_HIDDEN_IN)) &&
 644             ((action_type & ACTION_SINGLE) == 0 || msg_list_len == 1))
 645                 children->open_in = 1;
 646
 647         if (action_type & ACTION_SINGLE) {
 648                 GSList *cur;
 649
 650                 for (cur = msg_list; cur && is_ok == TRUE; cur = cur->next) {
 651                         msginfo = (MsgInfo *)cur->data;
 652                         if (!msginfo) {
 653                                 is_ok  = FALSE; /* ERR: msginfo missing */
 654                                 break;
 655                         }
 656                         cmd = parse_action_cmd(action, msginfo, msg_list,
 657                                                partinfo, user_str,
 658                                                user_hidden_str, sel_str);
 659                         if (!cmd) {
 660                                 debug_print("Action command error\n");
 661                                 is_ok  = FALSE; /* ERR: incorrect command */
 662                                 break;
 663                         }
 664                         if ((child_info = fork_child(cmd, msg_str, children))) {
 665                                 children_list = g_slist_append(children_list,
 666                                                                child_info);
 667                         }
 668                         g_free(cmd);
 669                 }
 670         } else {
 671                 cmd = parse_action_cmd(action, NULL, msg_list, partinfo,
 672                                        user_str, user_hidden_str, sel_str);
 673                 if (cmd) {
 674                         if ((child_info = fork_child(cmd, msg_str, children))) {
 675                                 children_list = g_slist_append(children_list,
 676                                                                child_info);
 677                         }
 678                         g_free(cmd);
 679                 } else
 680                         is_ok  = FALSE;         /* ERR: incorrect command */
 681         }
 682
 683         g_free(msg_str);
 684         g_free(sel_str);
 685         g_free(user_str);
 686         g_free(user_hidden_str);
 687
 688         if (!children_list) {
 689                  /* If not waiting for children, return */
 690                 free_children(children);
 691         } else {
 692                 GSList *cur;
 693
 694                 children->list        = children_list;
 695                 children->nb          = g_slist_length(children_list);
 696                 children->initial_nb  = children->nb;
 697
 698                 for (cur = children_list; cur; cur = cur->next) {
 699                         child_info = (ChildInfo *) cur->data;
 700                         child_info->tag_status =
 701                                 gdk_input_add(child_info->chld_status,
 702                                               GDK_INPUT_READ,
 703                                               catch_status, child_info);
 704                 }
 705
 706                 create_io_dialog(children);
 707         }
 708
 709         return is_ok;
 710 }
 711
 712 static ChildInfo *fork_child(gchar *cmd, const gchar *msg_str,
 713                              Children *children)
 714 {
 715         gint chld_in[2], chld_out[2], chld_err[2], chld_status[2];
 716         gchar *cmdline[4];
 717         pid_t pid, gch_pid;
 718         ChildInfo *child_info;
 719         gint sync;
 720
 721         sync = !(children->action_type & ACTION_ASYNC);
 722
 723         chld_in[0] = chld_in[1] = chld_out[0] = chld_out[1] = chld_err[0]
 724                 = chld_err[1] = chld_status[0] = chld_status[1] = -1;
 725
 726         if (sync) {
 727                 if (pipe(chld_status) || pipe(chld_in) || pipe(chld_out) ||
 728                     pipe(chld_err)) {
 729                         alertpanel_error(_("Command could not be started. "
 730                                            "Pipe creation failed.\n%s"),
 731                                         g_strerror(errno));
 732                         /* Closing fd = -1 fails silently */
 733                         close(chld_in[0]);
 734                         close(chld_in[1]);
 735                         close(chld_out[0]);
 736                         close(chld_out[1]);
 737                         close(chld_err[0]);
 738                         close(chld_err[1]);
 739                         close(chld_status[0]);
 740                         close(chld_status[1]);
 741                         return NULL; /* Pipe error */
 742                 }
 743         }
 744
 745         debug_print("Forking child and grandchild.\n");
 746
 747         pid = fork();
 748         if (pid == 0) { /* Child */
 749                 if (setpgid(0, 0))
 750                         perror("setpgid");
 751
 752                 close(ConnectionNumber(gdk_display));
 753
 754                 gch_pid = fork();
 755
 756                 if (gch_pid == 0) {
 757                         if (setpgid(0, getppid()))
 758                                 perror("setpgid");
 759
 760                         if (sync) {
 761                                 if (children->action_type &
 762                                     (ACTION_PIPE_IN |
 763                                      ACTION_USER_IN |
 764                                      ACTION_USER_HIDDEN_IN)) {
 765                                         close(fileno(stdin));
 766                                         dup  (chld_in[0]);
 767                                 }
 768                                 close(chld_in[0]);
 769                                 close(chld_in[1]);
 770
 771                                 close(fileno(stdout));
 772                                 dup  (chld_out[1]);
 773                                 close(chld_out[0]);
 774                                 close(chld_out[1]);
 775
 776                                 close(fileno(stderr));
 777                                 dup  (chld_err[1]);
 778                                 close(chld_err[0]);
 779                                 close(chld_err[1]);
 780                         }
 781
 782                         cmdline[0] = "sh";
 783                         cmdline[1] = "-c";
 784                         cmdline[2] = cmd;
 785                         cmdline[3] = 0;
 786                         execvp("/bin/sh", cmdline);
 787
 788                         perror("execvp");
 789                         _exit(1);
 790                 } else if (gch_pid < (pid_t) 0) { /* Fork error */
 791                         if (sync)
 792                                 write(chld_status[1], "1\n", 2);
 793                         perror("fork");
 794                         _exit(1);
 795                 } else { /* Child */
 796                         if (sync) {
 797                                 close(chld_in[0]);
 798                                 close(chld_in[1]);
 799                                 close(chld_out[0]);
 800                                 close(chld_out[1]);
 801                                 close(chld_err[0]);
 802                                 close(chld_err[1]);
 803                                 close(chld_status[0]);
 804
 805                                 debug_print("Child: Waiting for grandchild\n");
 806                                 waitpid(gch_pid, NULL, 0);
 807                                 debug_print("Child: grandchild ended\n");
 808                                 write(chld_status[1], "0\n", 2);
 809                                 close(chld_status[1]);
 810                         }
 811                         _exit(0);
 812                 }
 813         } else if (pid < 0) { /* Fork error */
 814                 alertpanel_error(_("Could not fork to execute the following "
 815                                    "command:\n%s\n%s"),
 816                                  cmd, g_strerror(errno));
 817                 return NULL;
 818         }
 819
 820         /* Parent */
 821
 822         if (!sync) {
 823                 waitpid(pid, NULL, 0);
 824                 return NULL;
 825         }
 826
 827         close(chld_in[0]);
 828         if (!(children->action_type &
 829               (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 830                 close(chld_in[1]);
 831         close(chld_out[1]);
 832         close(chld_err[1]);
 833         close(chld_status[1]);
 834
 835         child_info = g_new0(ChildInfo, 1);
 836
 837         child_info->children    = children;
 838
 839         child_info->pid         = pid;
 840         child_info->cmd         = g_strdup(cmd);
 841         child_info->new_out     = FALSE;
 842         child_info->output      = g_string_new(NULL);
 843         child_info->chld_in     =
 844                 (children->action_type &
 845                  (ACTION_PIPE_IN | ACTION_USER_IN | ACTION_USER_HIDDEN_IN))
 846                         ? chld_in [1] : -1;
 847         child_info->chld_out    = chld_out[0];
 848         child_info->chld_err    = chld_err[0];
 849         child_info->chld_status = chld_status[0];
 850         child_info->tag_in      = -1;
 851         child_info->tag_out     = gdk_input_add(chld_out[0], GDK_INPUT_READ,
 852                                                 catch_output, child_info);
 853         child_info->tag_err     = gdk_input_add(chld_err[0], GDK_INPUT_READ,
 854                                                 catch_output, child_info);
 855
 856         if (!(children->action_type &
 857               (ACTION_PIPE_IN | ACTION_PIPE_OUT | ACTION_INSERT)))
 858                 return child_info;
 859
 860         if ((children->action_type & ACTION_PIPE_IN) && msg_str) {
 861                 write(chld_in[1], msg_str, strlen(msg_str));
 862                 if (!(children->action_type &
 863                       (ACTION_USER_IN | ACTION_USER_HIDDEN_IN)))
 864                         close(chld_in[1]);
 865                 child_info->chld_in = -1; /* No more input */
 866         }
 867
 868         return child_info;
 869 }
 870
 871 static void kill_children_cb(GtkWidget *widget, gpointer data)
 872 {
 873         GSList *cur;
 874         Children *children = (Children *) data;
 875         ChildInfo *child_info;
 876
 877         for (cur = children->list; cur; cur = cur->next) {
 878                 child_info = (ChildInfo *)(cur->data);
 879                 debug_print("Killing child group id %d\n", child_info->pid);
 880                 if (child_info->pid && kill(-child_info->pid, SIGTERM) < 0)
 881                         perror("kill");
 882         }
 883 }
 884
 885 static gint wait_for_children(Children *children)
 886 {
 887         gboolean new_output;
 888         ChildInfo *child_info;
 889         GSList *cur;
 890         gint nb = children->nb;
 891
 892         children->nb = 0;
 893
 894         cur = children->list;
 895         new_output = FALSE;
 896         while (cur) {
 897                 child_info = (ChildInfo *)cur->data;
 898                 if (child_info->pid)
 899                         children->nb++;
 900                 new_output |= child_info->new_out;
 901                 cur = cur->next;
 902         }
 903
 904         children->output |= new_output;
 905
 906         if (new_output || (children->dialog && (nb != children->nb)))
 907                 update_io_dialog(children);
 908
 909         if (children->nb)
 910                 return FALSE;
 911
 912         if (!children->dialog) {
 913                 free_children(children);
 914         } else if (!children->output) {
 915                 gtk_widget_destroy(children->dialog);
 916         }
 917
 918         return FALSE;
 919 }
 920
 921 static void send_input(GtkWidget *w, gpointer data)
 922 {
 923         Children *children = (Children *) data;
 924         ChildInfo *child_info = (ChildInfo *) children->list->data;
 925
 926         child_info->tag_in = gdk_input_add(child_info->chld_in,
 927                                            GDK_INPUT_WRITE,
 928                                            catch_input, children);
 929         gtk_widget_set_sensitive(children->input_hbox, FALSE);
 930 }
 931
 932 static gint delete_io_dialog_cb(GtkWidget *w, GdkEvent *e, gpointer data)
 933 {
 934         hide_io_dialog_cb(w, data);
 935         return TRUE;
 936 }
 937
 938 static void hide_io_dialog_cb(GtkWidget *w, gpointer data)
 939 {
 940
 941         Children *children = (Children *)data;
 942
 943         if (!children->nb) {
 944                 gtk_signal_disconnect_by_data(GTK_OBJECT(children->dialog),
 945                                               children);
 946                 gtk_widget_destroy(children->dialog);
 947                 free_children(children);
 948         }
 949 }
 950
 951 static gint io_dialog_key_pressed_cb(GtkWidget *widget, GdkEventKey *event,
 952                                      gpointer data)
 953 {
 954         if (event && event->keyval == GDK_Escape)
 955                 hide_io_dialog_cb(widget, data);
 956         return TRUE;
 957 }
 958
 959 static void childinfo_close_pipes(ChildInfo *child_info)
 960 {
 961         if (child_info->tag_in > 0)
 962                 gdk_input_remove(child_info->tag_in);
 963         gdk_input_remove(child_info->tag_out);
 964         gdk_input_remove(child_info->tag_err);
 965
 966         if (child_info->chld_in >= 0)
 967                 close(child_info->chld_in);
 968         close(child_info->chld_out);
 969         close(child_info->chld_err);
 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                 gtk_signal_connect(GTK_OBJECT(children->dialog),
1009                                    "key_press_event",
1010                                    GTK_SIGNAL_FUNC(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
1019                 gtk_widget_show(children->scrolledwin);
1020                 gtk_text_freeze(GTK_TEXT(text));
1021                 gtk_text_set_point(GTK_TEXT(text), 0);
1022                 gtk_text_forward_delete(GTK_TEXT(text),
1023                                         gtk_text_get_length(GTK_TEXT(text)));
1024                 for (cur = children->list; cur; cur = cur->next) {
1025                         child_info = (ChildInfo *)cur->data;
1026                         if (child_info->pid)
1027                                 caption = g_strdup_printf
1028                                         (_("--- Running: %s\n"),
1029                                          child_info->cmd);
1030                         else
1031                                 caption = g_strdup_printf
1032                                         (_("--- Ended: %s\n"),
1033                                          child_info->cmd);
1034
1035                         gtk_text_insert(GTK_TEXT(text), NULL, NULL, NULL,
1036                                         caption, -1);
1037                         gtk_text_insert(GTK_TEXT(text), NULL, NULL, NULL,
1038                                         child_info->output->str, -1);
1039                         g_free(caption);
1040                         child_info->new_out = FALSE;
1041                 }
1042                 gtk_text_thaw(GTK_TEXT(text));
1043         }
1044 }
1045
1046 static void create_io_dialog(Children *children)
1047 {
1048         GtkWidget *dialog;
1049         GtkWidget *vbox;
1050         GtkWidget *entry = NULL;
1051         GtkWidget *input_hbox = NULL;
1052         GtkWidget *send_button;
1053         GtkWidget *label;
1054         GtkWidget *text;
1055         GtkWidget *scrolledwin;
1056         GtkWidget *hbox;
1057         GtkWidget *progress_bar = NULL;
1058         GtkWidget *abort_button;
1059         GtkWidget *close_button;
1060
1061         debug_print("Creating action IO dialog\n");
1062
1063         dialog = gtk_dialog_new();
1064         gtk_container_set_border_width
1065                 (GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 5);
1066         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
1067         gtk_window_set_title(GTK_WINDOW(dialog), _("Action's input/output"));
1068         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
1069         manage_window_set_transient(GTK_WINDOW(dialog));
1070         gtk_signal_connect(GTK_OBJECT(dialog), "delete_event",
1071                         GTK_SIGNAL_FUNC(delete_io_dialog_cb), children);
1072         gtk_signal_connect(GTK_OBJECT(dialog), "destroy",
1073                         GTK_SIGNAL_FUNC(hide_io_dialog_cb),
1074                         children);
1075
1076         vbox = gtk_vbox_new(FALSE, 8);
1077         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), vbox);
1078         gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
1079         gtk_widget_show(vbox);
1080
1081         label = gtk_label_new(children->action);
1082         gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
1083         gtk_widget_show(label);
1084
1085         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
1086         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
1087                                        GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
1088         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
1089         gtk_widget_set_usize(scrolledwin, 480, 200);
1090         gtk_widget_hide(scrolledwin);
1091
1092         text = gtk_text_new(gtk_scrolled_window_get_hadjustment
1093                             (GTK_SCROLLED_WINDOW(scrolledwin)),
1094                             gtk_scrolled_window_get_vadjustment
1095                             (GTK_SCROLLED_WINDOW(scrolledwin)));
1096         gtk_text_set_editable(GTK_TEXT(text), FALSE);
1097         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
1098         gtk_widget_show(text);
1099
1100         if (children->open_in) {
1101                 input_hbox = gtk_hbox_new(FALSE, 8);
1102                 gtk_widget_show(input_hbox);
1103
1104                 entry = gtk_entry_new();
1105                 gtk_widget_set_usize(entry, 320, -1);
1106                 gtk_signal_connect(GTK_OBJECT(entry), "activate",
1107                                    GTK_SIGNAL_FUNC(send_input), children);
1108                 gtk_box_pack_start(GTK_BOX(input_hbox), entry, TRUE, TRUE, 0);
1109                 if (children->action_type & ACTION_USER_HIDDEN_IN)
1110                         gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE);
1111                 gtk_widget_show(entry);
1112
1113                 send_button = gtk_button_new_with_label(_(" Send "));
1114                 gtk_signal_connect(GTK_OBJECT(send_button), "clicked",
1115                                    GTK_SIGNAL_FUNC(send_input), children);
1116                 gtk_box_pack_start(GTK_BOX(input_hbox), send_button, FALSE,
1117                                    FALSE, 0);
1118                 gtk_widget_show(send_button);
1119
1120                 gtk_box_pack_start(GTK_BOX(vbox), input_hbox, FALSE, FALSE, 0);
1121                 gtk_widget_grab_focus(entry);
1122         }
1123
1124         if (children->initial_nb > 1) {
1125                 progress_bar = gtk_progress_bar_new();
1126                 gtk_progress_bar_set_bar_style(GTK_PROGRESS_BAR(progress_bar),
1127                                 GTK_PROGRESS_CONTINUOUS);
1128                 gtk_progress_bar_set_orientation(GTK_PROGRESS_BAR(progress_bar),
1129                                 GTK_PROGRESS_LEFT_TO_RIGHT);
1130                 gtk_progress_set_activity_mode(GTK_PROGRESS(progress_bar),
1131                                 FALSE);
1132                 gtk_progress_set_format_string(GTK_PROGRESS(progress_bar),
1133                                 _("Completed %v/%u"));
1134                 gtk_progress_set_show_text(GTK_PROGRESS(progress_bar), TRUE);
1135                 gtk_progress_configure(GTK_PROGRESS(progress_bar),
1136                                 children->initial_nb -children->nb,
1137                                 0.0, children->initial_nb);
1138
1139                 gtk_box_pack_start(GTK_BOX(vbox), progress_bar, TRUE, TRUE, 0);
1140                 gtk_widget_show(progress_bar);
1141         }
1142
1143         gtkut_button_set_create(&hbox, &abort_button, _("Abort"),
1144                                 &close_button, _("Close"), NULL, NULL);
1145         gtk_signal_connect(GTK_OBJECT(abort_button), "clicked",
1146                         GTK_SIGNAL_FUNC(kill_children_cb), children);
1147         gtk_signal_connect(GTK_OBJECT(close_button), "clicked",
1148                         GTK_SIGNAL_FUNC(hide_io_dialog_cb), children);
1149         gtk_widget_show(hbox);
1150
1151         if (children->nb)
1152                 gtk_widget_set_sensitive(close_button, FALSE);
1153
1154         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), hbox);
1155
1156         children->dialog       = dialog;
1157         children->scrolledwin  = scrolledwin;
1158         children->text         = text;
1159         children->input_hbox   = children->open_in ? input_hbox : NULL;
1160         children->input_entry  = children->open_in ? entry : NULL;
1161         children->progress_bar = progress_bar;
1162         children->abort_btn    = abort_button;
1163         children->close_btn    = close_button;
1164
1165         gtk_widget_show(dialog);
1166 }
1167
1168 static void catch_status(gpointer data, gint source, GdkInputCondition cond)
1169 {
1170         ChildInfo *child_info = (ChildInfo *)data;
1171         gchar buf;
1172         gint c;
1173
1174         gdk_input_remove(child_info->tag_status);
1175
1176         c = read(source, &buf, 1);
1177         debug_print("Child returned %c\n", buf);
1178
1179         waitpid(-child_info->pid, NULL, 0);
1180         childinfo_close_pipes(child_info);
1181         child_info->pid = 0;
1182
1183         wait_for_children(child_info->children);
1184 }
1185
1186 static void catch_input(gpointer data, gint source, GdkInputCondition cond)
1187 {
1188         Children *children = (Children *)data;
1189         ChildInfo *child_info = (ChildInfo *)children->list->data;
1190         gchar *input;
1191         gint c, count, len;
1192
1193         debug_print("Sending input to grand child.\n");
1194         if (!(cond && GDK_INPUT_WRITE))
1195                 return;
1196
1197         gdk_input_remove(child_info->tag_in);
1198         child_info->tag_in = -1;
1199
1200         input = gtk_editable_get_chars(GTK_EDITABLE(children->input_entry),
1201                                        0, -1);
1202         len = strlen(input);
1203         count = 0;
1204
1205         do {
1206                 c = write(child_info->chld_in, input + count, len - count);
1207                 if (c >= 0)
1208                         count += c;
1209         } while (c >= 0 && count < len);
1210
1211         if (c >= 0)
1212                 write(child_info->chld_in, "\n", 2);
1213
1214         g_free(input);
1215
1216         gtk_entry_set_text(GTK_ENTRY(children->input_entry), "");
1217         gtk_widget_set_sensitive(children->input_hbox, TRUE);
1218         close(child_info->chld_in);
1219         child_info->chld_in = -1;
1220         debug_print("Input to grand child sent.\n");
1221 }
1222
1223 static void catch_output(gpointer data, gint source, GdkInputCondition cond)
1224 {
1225         ChildInfo *child_info = (ChildInfo *)data;
1226         gint c, i;
1227         gchar buf[BUFFSIZE];
1228
1229         debug_print("Catching grand child's output.\n");
1230         if (child_info->children->action_type &
1231             (ACTION_PIPE_OUT | ACTION_INSERT)
1232             && source == child_info->chld_out) {
1233                 gboolean is_selection = FALSE;
1234                 GtkWidget *text = child_info->children->msg_text;
1235
1236                 if (GTK_EDITABLE(text)->has_selection)
1237                         is_selection = TRUE;
1238                 gtk_stext_freeze(GTK_STEXT(text));
1239                 while (TRUE) {
1240                         c = read(source, buf, sizeof(buf) - 1);
1241                         if (c == 0)
1242                                 break;
1243                         gtk_stext_insert(GTK_STEXT(text),
1244                                          child_info->children->msgfont,
1245                                          NULL, NULL, buf, c);
1246                 }
1247                 if (is_selection) {
1248                         /* Using the select_region draws things. Should not.
1249                          * so we just change selection position and
1250                          * defere drawing when thawing. Hack?
1251                          */
1252                         GTK_EDITABLE(text)->selection_end_pos =
1253                                         gtk_stext_get_point(GTK_STEXT(text));
1254                 }
1255                 gtk_stext_thaw(GTK_STEXT(text));
1256         } else {
1257                 c = read(source, buf, sizeof(buf) - 1);
1258                 for (i = 0; i < c; i++)
1259                         g_string_append_c(child_info->output, buf[i]);
1260                 if (c > 0)
1261                         child_info->new_out = TRUE;
1262         }
1263         wait_for_children(child_info->children);
1264 }
1265
1266 static gchar *get_user_string(const gchar *action, ActionType type)
1267 {
1268         gchar *message;
1269         gchar *user_str = NULL;
1270
1271         switch (type) {
1272         case ACTION_USER_HIDDEN_STR:
1273                 message = g_strdup_printf
1274                         (_("Enter the argument for the following action:\n"
1275                            "(`%%h' will be replaced with the argument)\n"
1276                            "  %s"),
1277                          action);
1278                 user_str = input_dialog_with_invisible
1279                         (_("Action's hidden user argument"), message, NULL);
1280                 break;
1281         case ACTION_USER_STR:
1282                 message = g_strdup_printf
1283                         (_("Enter the argument for the following action:\n"
1284                            "(`%%u' will be replaced with the argument)\n"
1285                            "  %s"),
1286                          action);
1287                 user_str = input_dialog
1288                         (_("Action's user argument"), message, NULL);
1289                 break;
1290         default:
1291                 g_warning("Unsupported action type %d", type);
1292         }
1293
1294         return user_str;
1295 }