src/filemanager/usermenu.c

   1 /*
   2    User Menu implementation
   3
   4    Copyright (C) 1994-2016
   5    Free Software Foundation, Inc.
   6
   7    Written by:
   8    Slava Zanko <slavazanko@gmail.com>, 2013
   9    Andrew Borodin <aborodin@vmail.ru>, 2013
  10
  11    This file is part of the Midnight Commander.
  12
  13    The Midnight Commander is free software: you can redistribute it
  14    and/or modify it under the terms of the GNU General Public License as
  15    published by the Free Software Foundation, either version 3 of the License,
  16    or (at your option) any later version.
  17
  18    The Midnight Commander is distributed in the hope that it will be useful,
  19    but WITHOUT ANY WARRANTY; without even the implied warranty of
  20    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21    GNU General Public License for more details.
  22
  23    You should have received a copy of the GNU General Public License
  24    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  25  */
  26
  27 /** \file usermenu.c
  28  *  \brief Source: user menu implementation
  29  */
  30
  31 #include <config.h>
  32
  33 #include <ctype.h>
  34 #include <errno.h>
  35 #include <stdlib.h>
  36 #include <stdio.h>
  37 #include <string.h>
  38
  39 #include "lib/global.h"
  40 #include "lib/fileloc.h"
  41 #include "lib/tty/tty.h"
  42 #include "lib/skin.h"
  43 #include "lib/search.h"
  44 #include "lib/vfs/vfs.h"
  45 #include "lib/strutil.h"
  46 #include "lib/util.h"
  47 #include "lib/widget.h"
  48
  49 #include "src/editor/edit.h"    /* WEdit, BLOCK_FILE */
  50 #include "src/viewer/mcviewer.h"        /* for default_* externs */
  51
  52 #include "src/execute.h"
  53 #include "src/setup.h"
  54 #include "src/history.h"
  55
  56 #include "dir.h"
  57 #include "midnight.h"
  58 #include "layout.h"
  59
  60 #include "usermenu.h"
  61
  62 /*** global variables ****************************************************************************/
  63
  64 /*** file scope macro definitions ****************************************************************/
  65
  66 #define MAX_ENTRIES 16
  67 #define MAX_ENTRY_LEN 60
  68
  69 /*** file scope type declarations ****************************************************************/
  70
  71 /*** file scope variables ************************************************************************/
  72
  73 static gboolean debug_flag = FALSE;
  74 static gboolean debug_error = FALSE;
  75 static char *menu = NULL;
  76
  77 /*** file scope functions ************************************************************************/
  78 /* --------------------------------------------------------------------------------------------- */
  79
  80 /** strip file's extension */
  81 static char *
  82 strip_ext (char *ss)
  83 {
  84     char *s = ss;
  85     char *e = NULL;
  86
  87     while (*s != '\0')
  88     {
  89         if (*s == '.')
  90             e = s;
  91         if (IS_PATH_SEP (*s) && e != NULL)
  92             e = NULL;           /* '.' in *directory* name */
  93         s++;
  94     }
  95     if (e != NULL)
  96         *e = '\0';
  97     return ss;
  98 }
  99
 100 /* --------------------------------------------------------------------------------------------- */
 101 /**
 102  * Check for the "shell_patterns" directive.  If it's found and valid,
 103  * interpret it and move the pointer past the directive.  Return the
 104  * current pointer.
 105  */
 106
 107 static char *
 108 check_patterns (char *p)
 109 {
 110     static const char def_name[] = "shell_patterns=";
 111     char *p0 = p;
 112
 113     if (strncmp (p, def_name, sizeof (def_name) - 1) != 0)
 114         return p0;
 115
 116     p += sizeof (def_name) - 1;
 117     if (*p == '1')
 118         easy_patterns = 1;
 119     else if (*p == '0')
 120         easy_patterns = 0;
 121     else
 122         return p0;
 123
 124     /* Skip spaces */
 125     p++;
 126     while (*p == '\n' || *p == '\t' || *p == ' ')
 127         p++;
 128     return p;
 129 }
 130
 131 /* --------------------------------------------------------------------------------------------- */
 132 /** Copies a whitespace separated argument from p to arg. Returns the
 133    point after argument. */
 134
 135 static char *
 136 extract_arg (char *p, char *arg, int size)
 137 {
 138     while (*p != '\0' && (*p == ' ' || *p == '\t' || *p == '\n'))
 139         p++;
 140
 141     /* support quote space .mnu */
 142     while (*p != '\0' && (*p != ' ' || *(p - 1) == '\\') && *p != '\t' && *p != '\n')
 143     {
 144         char *np;
 145
 146         np = str_get_next_char (p);
 147         if (np - p >= size)
 148             break;
 149         memcpy (arg, p, np - p);
 150         arg += np - p;
 151         size -= np - p;
 152         p = np;
 153     }
 154     *arg = '\0';
 155     if (*p == '\0' || *p == '\n')
 156         str_prev_char (&p);
 157     return p;
 158 }
 159
 160 /* --------------------------------------------------------------------------------------------- */
 161 /* Tests whether the selected file in the panel is of any of the types
 162    specified in argument. */
 163
 164 static gboolean
 165 test_type (WPanel * panel, char *arg)
 166 {
 167     int result = 0;             /* False by default */
 168     mode_t st_mode = panel->dir.list[panel->selected].st.st_mode;
 169
 170     for (; *arg != '\0'; arg++)
 171     {
 172         switch (*arg)
 173         {
 174         case 'n':              /* Not a directory */
 175             result |= !S_ISDIR (st_mode);
 176             break;
 177         case 'r':              /* Regular file */
 178             result |= S_ISREG (st_mode);
 179             break;
 180         case 'd':              /* Directory */
 181             result |= S_ISDIR (st_mode);
 182             break;
 183         case 'l':              /* Link */
 184             result |= S_ISLNK (st_mode);
 185             break;
 186         case 'c':              /* Character special */
 187             result |= S_ISCHR (st_mode);
 188             break;
 189         case 'b':              /* Block special */
 190             result |= S_ISBLK (st_mode);
 191             break;
 192         case 'f':              /* Fifo (named pipe) */
 193             result |= S_ISFIFO (st_mode);
 194             break;
 195         case 's':              /* Socket */
 196             result |= S_ISSOCK (st_mode);
 197             break;
 198         case 'x':              /* Executable */
 199             result |= (st_mode & 0111) != 0 ? 1 : 0;
 200             break;
 201         case 't':
 202             result |= panel->marked != 0 ? 1 : 0;
 203             break;
 204         default:
 205             debug_error = TRUE;
 206             break;
 207         }
 208     }
 209
 210     return (result != 0);
 211 }
 212
 213 /* --------------------------------------------------------------------------------------------- */
 214 /** Calculates the truth value of the next condition starting from
 215    p. Returns the point after condition. */
 216
 217 static char *
 218 test_condition (const WEdit * edit_widget, char *p, gboolean * condition)
 219 {
 220     char arg[256];
 221     const mc_search_type_t search_type = easy_patterns ? MC_SEARCH_T_GLOB : MC_SEARCH_T_REGEX;
 222
 223     /* Handle one condition */
 224     for (; *p != '\n' && *p != '&' && *p != '|'; p++)
 225     {
 226         WPanel *panel = NULL;
 227
 228         /* support quote space .mnu */
 229         if ((*p == ' ' && *(p - 1) != '\\') || *p == '\t')
 230             continue;
 231         if (*p >= 'a')
 232             panel = current_panel;
 233         else if (get_other_type () == view_listing)
 234             panel = other_panel;
 235
 236         *p |= 0x20;
 237
 238         switch (*p++)
 239         {
 240         case '!':
 241             p = test_condition (edit_widget, p, condition);
 242             *condition = !*condition;
 243             str_prev_char (&p);
 244             break;
 245         case 'f':              /* file name pattern */
 246             p = extract_arg (p, arg, sizeof (arg));
 247 #ifdef USE_INTERNAL_EDIT
 248             if (edit_widget != NULL)
 249             {
 250                 const char *edit_filename;
 251
 252                 edit_filename = edit_get_file_name (edit_widget);
 253                 *condition = mc_search (arg, DEFAULT_CHARSET, edit_filename, search_type);
 254             }
 255             else
 256 #endif
 257                 *condition = panel != NULL &&
 258                     mc_search (arg, DEFAULT_CHARSET, panel->dir.list[panel->selected].fname,
 259                                search_type);
 260             break;
 261         case 'y':              /* syntax pattern */
 262 #ifdef USE_INTERNAL_EDIT
 263             if (edit_widget != NULL)
 264             {
 265                 const char *syntax_type;
 266
 267                 syntax_type = edit_get_syntax_type (edit_widget);
 268                 if (syntax_type != NULL)
 269                 {
 270                     p = extract_arg (p, arg, sizeof (arg));
 271                     *condition = mc_search (arg, DEFAULT_CHARSET, syntax_type, MC_SEARCH_T_NORMAL);
 272                 }
 273             }
 274 #endif
 275             break;
 276         case 'd':
 277             p = extract_arg (p, arg, sizeof (arg));
 278             *condition = panel != NULL
 279                 && mc_search (arg, DEFAULT_CHARSET, vfs_path_as_str (panel->cwd_vpath),
 280                               search_type);
 281             break;
 282         case 't':
 283             p = extract_arg (p, arg, sizeof (arg));
 284             *condition = panel != NULL && test_type (panel, arg);
 285             break;
 286         case 'x':              /* executable */
 287             {
 288                 struct stat status;
 289
 290                 p = extract_arg (p, arg, sizeof (arg));
 291                 *condition = stat (arg, &status) == 0 && is_exe (status.st_mode);
 292                 break;
 293             }
 294         default:
 295             debug_error = TRUE;
 296             break;
 297         }                       /* switch */
 298     }                           /* while */
 299     return p;
 300 }
 301
 302 /* --------------------------------------------------------------------------------------------- */
 303 /** General purpose condition debug output handler */
 304
 305 static void
 306 debug_out (char *start, char *end, gboolean condition)
 307 {
 308     static char *msg = NULL;
 309
 310     if (start == NULL && end == NULL)
 311     {
 312         /* Show output */
 313         if (debug_flag && msg != NULL)
 314         {
 315             size_t len;
 316
 317             len = strlen (msg);
 318             if (len != 0)
 319                 msg[len - 1] = '\0';
 320             message (D_NORMAL, _("Debug"), "%s", msg);
 321
 322         }
 323         debug_flag = FALSE;
 324         MC_PTR_FREE (msg);
 325     }
 326     else
 327     {
 328         const char *type;
 329         char *p;
 330
 331         /* Save debug info for later output */
 332         if (!debug_flag)
 333             return;
 334         /* Save the result of the condition */
 335         if (debug_error)
 336         {
 337             type = _("ERROR:");
 338             debug_error = FALSE;
 339         }
 340         else if (condition)
 341             type = _("True:");
 342         else
 343             type = _("False:");
 344         /* This is for debugging, don't need to be super efficient.  */
 345         if (end == NULL)
 346             p = g_strdup_printf ("%s %s %c \n", msg ? msg : "", type, *start);
 347         else
 348             p = g_strdup_printf ("%s %s %.*s \n", msg ? msg : "", type, (int) (end - start), start);
 349         g_free (msg);
 350         msg = p;
 351     }
 352 }
 353
 354 /* --------------------------------------------------------------------------------------------- */
 355 /** Calculates the truth value of one lineful of conditions. Returns
 356    the point just before the end of line. */
 357
 358 static char *
 359 test_line (const WEdit * edit_widget, char *p, gboolean * result)
 360 {
 361     char operator;
 362
 363     /* Repeat till end of line */
 364     while (*p != '\0' && *p != '\n')
 365     {
 366         char *debug_start, *debug_end;
 367         gboolean condition = TRUE;
 368
 369         /* support quote space .mnu */
 370         while ((*p == ' ' && *(p - 1) != '\\') || *p == '\t')
 371             p++;
 372         if (*p == '\0' || *p == '\n')
 373             break;
 374         operator = *p++;
 375         if (*p == '?')
 376         {
 377             debug_flag = TRUE;
 378             p++;
 379         }
 380         /* support quote space .mnu */
 381         while ((*p == ' ' && *(p - 1) != '\\') || *p == '\t')
 382             p++;
 383         if (*p == '\0' || *p == '\n')
 384             break;
 385
 386         debug_start = p;
 387         p = test_condition (edit_widget, p, &condition);
 388         debug_end = p;
 389         /* Add one debug statement */
 390         debug_out (debug_start, debug_end, condition);
 391
 392         switch (operator)
 393         {
 394         case '+':
 395         case '=':
 396             /* Assignment */
 397             *result = condition;
 398             break;
 399         case '&':              /* Logical and */
 400             *result = *result && condition;
 401             break;
 402         case '|':              /* Logical or */
 403             *result = *result || condition;
 404             break;
 405         default:
 406             debug_error = TRUE;
 407             break;
 408         }                       /* switch */
 409         /* Add one debug statement */
 410         debug_out (&operator, NULL, *result);
 411
 412     }                           /* while (*p != '\n') */
 413     /* Report debug message */
 414     debug_out (NULL, NULL, TRUE);
 415
 416     if (*p == '\0' || *p == '\n')
 417         str_prev_char (&p);
 418     return p;
 419 }
 420
 421 /* --------------------------------------------------------------------------------------------- */
 422 /** FIXME: recode this routine on version 3.0, it could be cleaner */
 423
 424 static void
 425 execute_menu_command (const WEdit * edit_widget, const char *commands, gboolean show_prompt)
 426 {
 427     FILE *cmd_file;
 428     int cmd_file_fd;
 429     gboolean expand_prefix_found = FALSE;
 430     char *parameter = NULL;
 431     gboolean do_quote = FALSE;
 432     char lc_prompt[80];
 433     int col;
 434     vfs_path_t *file_name_vpath;
 435     gboolean run_view = FALSE;
 436
 437     /* Skip menu entry title line */
 438     commands = strchr (commands, '\n');
 439     if (commands == NULL)
 440         return;
 441
 442     cmd_file_fd = mc_mkstemps (&file_name_vpath, "mcusr", SCRIPT_SUFFIX);
 443
 444     if (cmd_file_fd == -1)
 445     {
 446         message (D_ERROR, MSG_ERROR, _("Cannot create temporary command file\n%s"),
 447                  unix_error_string (errno));
 448         vfs_path_free (file_name_vpath);
 449         return;
 450     }
 451     cmd_file = fdopen (cmd_file_fd, "w");
 452     fputs ("#! /bin/sh\n", cmd_file);
 453     commands++;
 454
 455     for (col = 0; *commands != '\0'; commands++)
 456     {
 457         if (col == 0)
 458         {
 459             if (*commands != ' ' && *commands != '\t')
 460                 break;
 461             while (*commands == ' ' || *commands == '\t')
 462                 commands++;
 463             if (*commands == '\0')
 464                 break;
 465         }
 466         col++;
 467         if (*commands == '\n')
 468             col = 0;
 469         if (parameter != NULL)
 470         {
 471             if (*commands == '}')
 472             {
 473                 *parameter = '\0';
 474                 parameter =
 475                     input_dialog (_("Parameter"), lc_prompt, MC_HISTORY_FM_MENU_EXEC_PARAM, "",
 476                                   INPUT_COMPLETE_FILENAMES | INPUT_COMPLETE_CD |
 477                                   INPUT_COMPLETE_HOSTNAMES | INPUT_COMPLETE_VARIABLES |
 478                                   INPUT_COMPLETE_USERNAMES);
 479                 if (parameter == NULL || *parameter == '\0')
 480                 {
 481                     /* User canceled */
 482                     fclose (cmd_file);
 483                     mc_unlink (file_name_vpath);
 484                     vfs_path_free (file_name_vpath);
 485                     return;
 486                 }
 487                 if (do_quote)
 488                 {
 489                     char *tmp;
 490
 491                     tmp = name_quote (parameter, FALSE);
 492                     fputs (tmp, cmd_file);
 493                     g_free (tmp);
 494                 }
 495                 else
 496                     fputs (parameter, cmd_file);
 497
 498                 MC_PTR_FREE (parameter);
 499             }
 500             else if (parameter < lc_prompt + sizeof (lc_prompt) - 1)
 501                 *parameter++ = *commands;
 502         }
 503         else if (expand_prefix_found)
 504         {
 505             expand_prefix_found = FALSE;
 506             if (g_ascii_isdigit ((gchar) * commands))
 507             {
 508                 do_quote = (atoi (commands) != 0);
 509                 while (g_ascii_isdigit ((gchar) * commands))
 510                     commands++;
 511             }
 512             if (*commands == '{')
 513                 parameter = lc_prompt;
 514             else
 515             {
 516                 char *text;
 517
 518                 text = expand_format (edit_widget, *commands, do_quote);
 519                 fputs (text, cmd_file);
 520                 g_free (text);
 521             }
 522         }
 523         else
 524         {
 525             if (*commands == '%')
 526             {
 527                 int i;
 528
 529                 i = check_format_view (commands + 1);
 530                 if (i != 0)
 531                 {
 532                     commands += i;
 533                     run_view = TRUE;
 534                 }
 535                 else
 536                 {
 537                     do_quote = TRUE;    /* Default: Quote expanded macro */
 538                     expand_prefix_found = TRUE;
 539                 }
 540             }
 541             else
 542                 fputc (*commands, cmd_file);
 543         }
 544     }
 545     fclose (cmd_file);
 546     mc_chmod (file_name_vpath, S_IRWXU);
 547     if (run_view)
 548     {
 549         mcview_viewer (vfs_path_as_str (file_name_vpath), NULL, 0, 0, 0);
 550         dialog_switch_process_pending ();
 551     }
 552     else
 553     {
 554         /* execute the command indirectly to allow execution even
 555          * on no-exec filesystems. */
 556         char *cmd;
 557
 558         cmd = g_strconcat ("/bin/sh ", vfs_path_as_str (file_name_vpath), (char *) NULL);
 559         if (!show_prompt)
 560         {
 561             if (system (cmd) == -1)
 562                 message (D_ERROR, MSG_ERROR, "%s", _("Error calling program"));
 563         }
 564         else
 565         {
 566             shell_execute (cmd, EXECUTE_HIDE);
 567         }
 568         g_free (cmd);
 569     }
 570     mc_unlink (file_name_vpath);
 571     vfs_path_free (file_name_vpath);
 572 }
 573
 574 /* --------------------------------------------------------------------------------------------- */
 575 /**
 576  **     Check owner of the menu file. Using menu file is allowed, if
 577  **     owner of the menu is root or the actual user. In either case
 578  **     file should not be group and word-writable.
 579  **
 580  **     Q. Should we apply this routine to system and home menu (and .ext files)?
 581  */
 582
 583 static gboolean
 584 menu_file_own (char *path)
 585 {
 586     struct stat st;
 587
 588     if (stat (path, &st) == 0 && (st.st_uid == 0 || (st.st_uid == geteuid ()) != 0)
 589         && ((st.st_mode & (S_IWGRP | S_IWOTH)) == 0))
 590         return TRUE;
 591
 592     if (verbose)
 593         message (D_NORMAL, _("Warning -- ignoring file"),
 594                  _("File %s is not owned by root or you or is world writable.\n"
 595                    "Using it may compromise your security"), path);
 596
 597     return FALSE;
 598 }
 599
 600 /* --------------------------------------------------------------------------------------------- */
 601 /*** public functions ****************************************************************************/
 602 /* --------------------------------------------------------------------------------------------- */
 603
 604 /* Formats defined:
 605    %%  The % character
 606    %f  The current file (if non-local vfs, file will be copied locally and
 607    %f will be full path to it).
 608    %p  The current file
 609    %d  The current working directory
 610    %s  "Selected files"; the tagged files if any, otherwise the current file
 611    %t  Tagged files
 612    %u  Tagged files (and they are untagged on return from expand_format)
 613    %view Runs the commands and pipes standard output to the view command.
 614    If %view is immediately followed by '{', recognize keywords
 615    ascii, hex, nroff and unform
 616
 617    If the format letter is in uppercase, it refers to the other panel.
 618
 619    With a number followed the % character you can turn quoting on (default)
 620    and off. For example:
 621    %f    quote expanded macro
 622    %1f   ditto
 623    %0f   don't quote expanded macro
 624
 625    expand_format returns a memory block that must be free()d.
 626  */
 627
 628 /* Returns how many characters we should advance if %view was found */
 629 int
 630 check_format_view (const char *p)
 631 {
 632     const char *q = p;
 633
 634     if (strncmp (p, "view", 4) == 0)
 635     {
 636         q += 4;
 637         if (*q == '{')
 638         {
 639             for (q++; *q != '\0' && *q != '}'; q++)
 640             {
 641                 if (strncmp (q, DEFAULT_CHARSET, 5) == 0)
 642                 {
 643                     mcview_default_hex_mode = 0;
 644                     q += 4;
 645                 }
 646                 else if (strncmp (q, "hex", 3) == 0)
 647                 {
 648                     mcview_default_hex_mode = 1;
 649                     q += 2;
 650                 }
 651                 else if (strncmp (q, "nroff", 5) == 0)
 652                 {
 653                     mcview_default_nroff_flag = 1;
 654                     q += 4;
 655                 }
 656                 else if (strncmp (q, "unform", 6) == 0)
 657                 {
 658                     mcview_default_nroff_flag = 0;
 659                     q += 5;
 660                 }
 661             }
 662             if (*q == '}')
 663                 q++;
 664         }
 665         return q - p;
 666     }
 667     return 0;
 668 }
 669
 670 /* --------------------------------------------------------------------------------------------- */
 671
 672 int
 673 check_format_cd (const char *p)
 674 {
 675     return (strncmp (p, "cd", 2)) != 0 ? 0 : 3;
 676 }
 677
 678 /* --------------------------------------------------------------------------------------------- */
 679 /* Check if p has a "^var\{var-name\}" */
 680 /* Returns the number of skipped characters (zero on not found) */
 681 /* V will be set to the expanded variable name */
 682
 683 int
 684 check_format_var (const char *p, char **v)
 685 {
 686     const char *q = p;
 687     char *var_name;
 688
 689     *v = NULL;
 690     if (strncmp (p, "var{", 4) == 0)
 691     {
 692         const char *dots = NULL;
 693         const char *value;
 694
 695         for (q += 4; *q != '\0' && *q != '}'; q++)
 696         {
 697             if (*q == ':')
 698                 dots = q + 1;
 699         }
 700         if (*q == '\0')
 701             return 0;
 702
 703         if (dots == NULL || dots == q + 5)
 704         {
 705             message (D_ERROR,
 706                      _("Format error on file Extensions File"),
 707                      !dots ? _("The %%var macro has no default")
 708                      : _("The %%var macro has no variable"));
 709             return 0;
 710         }
 711
 712         /* Copy the variable name */
 713         var_name = g_strndup (p + 4, dots - 2 - (p + 3));
 714
 715         value = getenv (var_name);
 716         g_free (var_name);
 717         if (value != NULL)
 718         {
 719             *v = g_strdup (value);
 720             return q - p;
 721         }
 722         var_name = g_strndup (dots, q - dots);
 723         *v = var_name;
 724         return q - p;
 725     }
 726     return 0;
 727 }
 728
 729 /* --------------------------------------------------------------------------------------------- */
 730
 731 char *
 732 expand_format (const WEdit * edit_widget, char c, gboolean do_quote)
 733 {
 734     WPanel *panel = NULL;
 735     char *(*quote_func) (const char *, gboolean);
 736     const char *fname = NULL;
 737     char *result;
 738     char c_lc;
 739
 740 #ifndef USE_INTERNAL_EDIT
 741     (void) edit_widget;
 742 #endif
 743
 744     if (c == '%')
 745         return g_strdup ("%");
 746
 747     switch (mc_global.mc_run_mode)
 748     {
 749     case MC_RUN_FULL:
 750         if (g_ascii_islower ((gchar) c))
 751             panel = current_panel;
 752         else
 753         {
 754             if (get_other_type () != view_listing)
 755                 return g_strdup ("");
 756             panel = other_panel;
 757         }
 758         fname = panel->dir.list[panel->selected].fname;
 759         break;
 760
 761 #ifdef USE_INTERNAL_EDIT
 762     case MC_RUN_EDITOR:
 763         fname = edit_get_file_name (edit_widget);
 764         break;
 765 #endif
 766
 767     default:
 768         /* other modes don't use formats */
 769         return g_strdup ("");
 770     }
 771
 772     if (do_quote)
 773         quote_func = name_quote;
 774     else
 775         quote_func = fake_name_quote;
 776
 777     c_lc = g_ascii_tolower ((gchar) c);
 778
 779     switch (c_lc)
 780     {
 781     case 'f':
 782     case 'p':
 783         result = quote_func (fname, FALSE);
 784         goto ret;
 785     case 'x':
 786         result = quote_func (extension (fname), FALSE);
 787         goto ret;
 788     case 'd':
 789         {
 790             const char *cwd;
 791             char *qstr;
 792
 793             if (panel != NULL)
 794                 cwd = vfs_path_as_str (panel->cwd_vpath);
 795             else
 796                 cwd = vfs_get_current_dir ();
 797
 798             qstr = quote_func (cwd, FALSE);
 799
 800             result = qstr;
 801             goto ret;
 802         }
 803     case 'i':                  /* indent equal number cursor position in line */
 804 #ifdef USE_INTERNAL_EDIT
 805         if (edit_widget != NULL)
 806         {
 807             result = g_strnfill (edit_get_curs_col (edit_widget), ' ');
 808             goto ret;
 809         }
 810 #endif
 811         break;
 812     case 'y':                  /* syntax type */
 813 #ifdef USE_INTERNAL_EDIT
 814         if (edit_widget != NULL)
 815         {
 816             const char *syntax_type;
 817
 818             syntax_type = edit_get_syntax_type (edit_widget);
 819             if (syntax_type != NULL)
 820             {
 821                 result = g_strdup (syntax_type);
 822                 goto ret;
 823             }
 824         }
 825 #endif
 826         break;
 827     case 'k':                  /* block file name */
 828     case 'b':                  /* block file name / strip extension */
 829 #ifdef USE_INTERNAL_EDIT
 830         if (edit_widget != NULL)
 831         {
 832             char *file;
 833
 834             file = mc_config_get_full_path (EDIT_BLOCK_FILE);
 835             result = quote_func (file, FALSE);
 836             g_free (file);
 837             goto ret;
 838         }
 839 #endif
 840         if (c_lc == 'b')
 841         {
 842             result = strip_ext (quote_func (fname, FALSE));
 843             goto ret;
 844         }
 845         break;
 846     case 'n':                  /* strip extension in editor */
 847 #ifdef USE_INTERNAL_EDIT
 848         if (edit_widget != NULL)
 849         {
 850             result = strip_ext (quote_func (fname, FALSE));
 851             goto ret;
 852         }
 853 #endif
 854         break;
 855     case 'm':                  /* menu file name */
 856         if (menu != NULL)
 857         {
 858             result = quote_func (menu, FALSE);
 859             goto ret;
 860         }
 861         break;
 862     case 's':
 863         if (panel == NULL || panel->marked == 0)
 864         {
 865             result = quote_func (fname, FALSE);
 866             goto ret;
 867         }
 868
 869         /* Fall through */
 870
 871     case 't':
 872     case 'u':
 873         {
 874             GString *block;
 875             int i;
 876
 877             if (panel == NULL)
 878             {
 879                 result = g_strdup ("");
 880                 goto ret;
 881             }
 882
 883             block = g_string_sized_new (16);
 884
 885             for (i = 0; i < panel->dir.len; i++)
 886                 if (panel->dir.list[i].f.marked)
 887                 {
 888                     char *tmp;
 889
 890                     tmp = quote_func (panel->dir.list[i].fname, FALSE);
 891                     g_string_append (block, tmp);
 892                     g_string_append_c (block, ' ');
 893                     g_free (tmp);
 894
 895                     if (c_lc == 'u')
 896                         do_file_mark (panel, i, 0);
 897                 }
 898             result = g_string_free (block, FALSE);
 899             goto ret;
 900         }                       /* sub case block */
 901     default:
 902         break;
 903     }                           /* switch */
 904
 905     result = g_strdup ("% ");
 906     result[1] = c;
 907   ret:
 908     return result;
 909 }
 910
 911 /* --------------------------------------------------------------------------------------------- */
 912 /**
 913  * If edit_widget is NULL then we are called from the mc menu,
 914  * otherwise we are called from the mcedit menu.
 915  */
 916
 917 gboolean
 918 user_menu_cmd (const WEdit * edit_widget, const char *menu_file, int selected_entry)
 919 {
 920     char *p;
 921     char *data, **entries;
 922     int max_cols, menu_lines, menu_limit;
 923     int col, i;
 924     gboolean accept_entry = TRUE;
 925     int selected, old_patterns;
 926     gboolean res = FALSE;
 927     gboolean interactive = TRUE;
 928
 929     if (!vfs_current_is_local ())
 930     {
 931         message (D_ERROR, MSG_ERROR, "%s", _("Cannot execute commands on non-local filesystems"));
 932         return FALSE;
 933     }
 934     if (menu_file != NULL)
 935         menu = g_strdup (menu_file);
 936     else
 937         menu = g_strdup (edit_widget != NULL ? EDIT_LOCAL_MENU : MC_LOCAL_MENU);
 938     if (!exist_file (menu) || !menu_file_own (menu))
 939     {
 940         if (menu_file != NULL)
 941         {
 942             message (D_ERROR, MSG_ERROR, _("Cannot open file %s\n%s"), menu,
 943                      unix_error_string (errno));
 944             MC_PTR_FREE (menu);
 945             return FALSE;
 946         }
 947
 948         g_free (menu);
 949         if (edit_widget != NULL)
 950             menu = mc_config_get_full_path (EDIT_HOME_MENU);
 951         else
 952             menu = mc_config_get_full_path (MC_USERMENU_FILE);
 953
 954
 955         if (!exist_file (menu))
 956         {
 957             g_free (menu);
 958             menu =
 959                 mc_build_filename (mc_config_get_home_dir (),
 960                                    edit_widget != NULL ? EDIT_GLOBAL_MENU : MC_GLOBAL_MENU,
 961                                    (char *) NULL);
 962             if (!exist_file (menu))
 963             {
 964                 g_free (menu);
 965                 menu =
 966                     mc_build_filename (mc_global.sysconfig_dir,
 967                                        edit_widget != NULL ? EDIT_GLOBAL_MENU : MC_GLOBAL_MENU,
 968                                        (char *) NULL);
 969                 if (!exist_file (menu))
 970                 {
 971                     g_free (menu);
 972                     menu =
 973                         mc_build_filename (mc_global.share_data_dir,
 974                                            edit_widget != NULL ? EDIT_GLOBAL_MENU : MC_GLOBAL_MENU,
 975                                            (char *) NULL);
 976                 }
 977             }
 978         }
 979     }
 980
 981     if (!g_file_get_contents (menu, &data, NULL, NULL))
 982     {
 983         message (D_ERROR, MSG_ERROR, _("Cannot open file %s\n%s"), menu, unix_error_string (errno));
 984         MC_PTR_FREE (menu);
 985         return FALSE;
 986     }
 987
 988     max_cols = 0;
 989     selected = 0;
 990     menu_limit = 0;
 991     entries = NULL;
 992
 993     /* Parse the menu file */
 994     old_patterns = easy_patterns;
 995     p = check_patterns (data);
 996     for (menu_lines = col = 0; *p != '\0'; str_next_char (&p))
 997     {
 998         if (menu_lines >= menu_limit)
 999         {
1000             char **new_entries;
1001
1002             menu_limit += MAX_ENTRIES;
1003             new_entries = g_try_realloc (entries, sizeof (new_entries[0]) * menu_limit);
1004
1005             if (new_entries == NULL)
1006                 break;
1007
1008             entries = new_entries;
1009             new_entries += menu_limit;
1010             while (--new_entries >= &entries[menu_lines])
1011                 *new_entries = NULL;
1012         }
1013         if (col == 0 && entries[menu_lines] == NULL)
1014         {
1015             if (*p == '#')
1016             {
1017                 /* show prompt if first line of external script is #interactive */
1018                 if (selected_entry >= 0 && strncmp (p, "#silent", 7) == 0)
1019                     interactive = FALSE;
1020                 /* A commented menu entry */
1021                 accept_entry = TRUE;
1022             }
1023             else if (*p == '+')
1024             {
1025                 if (*(p + 1) == '=')
1026                 {
1027                     /* Combined adding and default */
1028                     p = test_line (edit_widget, p + 1, &accept_entry);
1029                     if (selected == 0 && accept_entry)
1030                         selected = menu_lines;
1031                 }
1032                 else
1033                 {
1034                     /* A condition for adding the entry */
1035                     p = test_line (edit_widget, p, &accept_entry);
1036                 }
1037             }
1038             else if (*p == '=')
1039             {
1040                 if (*(p + 1) == '+')
1041                 {
1042                     /* Combined adding and default */
1043                     p = test_line (edit_widget, p + 1, &accept_entry);
1044                     if (selected == 0 && accept_entry)
1045                         selected = menu_lines;
1046                 }
1047                 else
1048                 {
1049                     /* A condition for making the entry default */
1050                     i = 1;
1051                     p = test_line (edit_widget, p, &i);
1052                     if (selected == 0 && i != 0)
1053                         selected = menu_lines;
1054                 }
1055             }
1056             else if (*p != ' ' && *p != '\t' && str_isprint (p))
1057             {
1058                 /* A menu entry title line */
1059                 if (accept_entry)
1060                     entries[menu_lines] = p;
1061                 else
1062                     accept_entry = TRUE;
1063             }
1064         }
1065         if (*p == '\n')
1066         {
1067             if (entries[menu_lines] != NULL)
1068             {
1069                 menu_lines++;
1070                 accept_entry = TRUE;
1071             }
1072             max_cols = MAX (max_cols, col);
1073             col = 0;
1074         }
1075         else
1076         {
1077             if (*p == '\t')
1078                 *p = ' ';
1079             col++;
1080         }
1081     }
1082
1083     if (menu_lines == 0)
1084     {
1085         message (D_ERROR, MSG_ERROR, _("No suitable entries found in %s"), menu);
1086         res = FALSE;
1087     }
1088     else
1089     {
1090         if (selected_entry >= 0)
1091             selected = selected_entry;
1092         else
1093         {
1094             Listbox *listbox;
1095
1096             max_cols = MIN (MAX (max_cols, col), MAX_ENTRY_LEN);
1097
1098             /* Create listbox */
1099             listbox = create_listbox_window (menu_lines, max_cols + 2, _("User menu"),
1100                                              "[Edit Menu File]");
1101             /* insert all the items found */
1102             for (i = 0; i < menu_lines; i++)
1103             {
1104                 p = entries[i];
1105                 LISTBOX_APPEND_TEXT (listbox, (unsigned char) p[0],
1106                                      extract_line (p, p + MAX_ENTRY_LEN), p, FALSE);
1107             }
1108             /* Select the default entry */
1109             listbox_select_entry (listbox->list, selected);
1110
1111             selected = run_listbox (listbox);
1112         }
1113         if (selected >= 0)
1114         {
1115             execute_menu_command (edit_widget, entries[selected], interactive);
1116             res = TRUE;
1117         }
1118
1119         do_refresh ();
1120     }
1121
1122     easy_patterns = old_patterns;
1123     MC_PTR_FREE (menu);
1124     g_free (entries);
1125     g_free (data);
1126     return res;
1127 }
1128
1129 /* --------------------------------------------------------------------------------------------- */