src/filemanager/usermenu.c

   1 /*
   2    User Menu implementation
   3
   4    Copyright (C) 1994, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
   5    2006, 2007, 2011
   6    The Free Software Foundation, Inc.
   7
   8    This file is part of the Midnight Commander.
   9
  10    The Midnight Commander is free software: you can redistribute it
  11    and/or modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation, either version 3 of the License,
  13    or (at your option) any later version.
  14
  15    The Midnight Commander is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22  */
  23
  24 /** \file usermenu.c
  25  *  \brief Source: user menu implementation
  26  */
  27
  28 #include <config.h>
  29
  30 #include <ctype.h>
  31 #include <errno.h>
  32 #include <stdlib.h>
  33 #include <stdio.h>
  34 #include <string.h>
  35
  36 #include "lib/global.h"
  37 #include "lib/tty/tty.h"
  38 #include "lib/skin.h"
  39 #include "lib/search.h"
  40 #include "lib/vfs/vfs.h"
  41 #include "lib/strutil.h"
  42 #include "lib/util.h"
  43 #include "lib/widget.h"
  44
  45 #include "src/editor/edit.h"    /* WEdit, BLOCK_FILE */
  46 #include "src/viewer/mcviewer.h"        /* for default_* externs */
  47
  48 #include "src/execute.h"
  49 #include "src/setup.h"
  50 #include "src/history.h"
  51
  52 #include "dir.h"
  53 #include "midnight.h"
  54 #include "layout.h"
  55
  56 #include "usermenu.h"
  57
  58 /*** global variables ****************************************************************************/
  59
  60 /*** file scope macro definitions ****************************************************************/
  61
  62 #define MAX_ENTRIES 16
  63 #define MAX_ENTRY_LEN 60
  64
  65 /*** file scope type declarations ****************************************************************/
  66
  67 /*** file scope variables ************************************************************************/
  68
  69 static int debug_flag = 0;
  70 static int debug_error = 0;
  71 static char *menu = NULL;
  72
  73 /*** file scope functions ************************************************************************/
  74 /* --------------------------------------------------------------------------------------------- */
  75
  76 /** strip file's extension */
  77 static char *
  78 strip_ext (char *ss)
  79 {
  80     register char *s = ss;
  81     char *e = NULL;
  82     while (*s)
  83     {
  84         if (*s == '.')
  85             e = s;
  86         if (*s == PATH_SEP && e)
  87             e = NULL;           /* '.' in *directory* name */
  88         s++;
  89     }
  90     if (e)
  91         *e = 0;
  92     return ss;
  93 }
  94
  95 /* --------------------------------------------------------------------------------------------- */
  96 /**
  97  * Check for the "shell_patterns" directive.  If it's found and valid,
  98  * interpret it and move the pointer past the directive.  Return the
  99  * current pointer.
 100  */
 101
 102 static char *
 103 check_patterns (char *p)
 104 {
 105     static const char def_name[] = "shell_patterns=";
 106     char *p0 = p;
 107
 108     if (strncmp (p, def_name, sizeof (def_name) - 1) != 0)
 109         return p0;
 110
 111     p += sizeof (def_name) - 1;
 112     if (*p == '1')
 113         easy_patterns = 1;
 114     else if (*p == '0')
 115         easy_patterns = 0;
 116     else
 117         return p0;
 118
 119     /* Skip spaces */
 120     p++;
 121     while (*p == '\n' || *p == '\t' || *p == ' ')
 122         p++;
 123     return p;
 124 }
 125
 126 /* --------------------------------------------------------------------------------------------- */
 127 /** Copies a whitespace separated argument from p to arg. Returns the
 128    point after argument. */
 129
 130 static char *
 131 extract_arg (char *p, char *arg, int size)
 132 {
 133     char *np;
 134
 135     while (*p && (*p == ' ' || *p == '\t' || *p == '\n'))
 136         p++;
 137     /* support quote space .mnu */
 138     while (*p && (*p != ' ' || *(p - 1) == '\\') && *p != '\t' && *p != '\n')
 139     {
 140         np = str_get_next_char (p);
 141         if (np - p >= size)
 142             break;
 143         memcpy (arg, p, np - p);
 144         arg += np - p;
 145         size -= np - p;
 146         p = np;
 147     }
 148     *arg = 0;
 149     if (!*p || *p == '\n')
 150         str_prev_char (&p);
 151     return p;
 152 }
 153
 154 /* --------------------------------------------------------------------------------------------- */
 155 /* Tests whether the selected file in the panel is of any of the types
 156    specified in argument. */
 157
 158 static int
 159 test_type (WPanel * panel, char *arg)
 160 {
 161     int result = 0;             /* False by default */
 162     int st_mode = panel->dir.list[panel->selected].st.st_mode;
 163
 164     for (; *arg != 0; arg++)
 165     {
 166         switch (*arg)
 167         {
 168         case 'n':              /* Not a directory */
 169             result |= !S_ISDIR (st_mode);
 170             break;
 171         case 'r':              /* Regular file */
 172             result |= S_ISREG (st_mode);
 173             break;
 174         case 'd':              /* Directory */
 175             result |= S_ISDIR (st_mode);
 176             break;
 177         case 'l':              /* Link */
 178             result |= S_ISLNK (st_mode);
 179             break;
 180         case 'c':              /* Character special */
 181             result |= S_ISCHR (st_mode);
 182             break;
 183         case 'b':              /* Block special */
 184             result |= S_ISBLK (st_mode);
 185             break;
 186         case 'f':              /* Fifo (named pipe) */
 187             result |= S_ISFIFO (st_mode);
 188             break;
 189         case 's':              /* Socket */
 190             result |= S_ISSOCK (st_mode);
 191             break;
 192         case 'x':              /* Executable */
 193             result |= (st_mode & 0111) ? 1 : 0;
 194             break;
 195         case 't':
 196             result |= panel->marked ? 1 : 0;
 197             break;
 198         default:
 199             debug_error = 1;
 200             break;
 201         }
 202     }
 203     return result;
 204 }
 205
 206 /* --------------------------------------------------------------------------------------------- */
 207 /** Calculates the truth value of the next condition starting from
 208    p. Returns the point after condition. */
 209
 210 static char *
 211 test_condition (WEdit * edit_widget, char *p, int *condition)
 212 {
 213     char arg[256];
 214     const mc_search_type_t search_type = easy_patterns ? MC_SEARCH_T_GLOB : MC_SEARCH_T_REGEX;
 215
 216     /* Handle one condition */
 217     for (; *p != '\n' && *p != '&' && *p != '|'; p++)
 218     {
 219         WPanel *panel = NULL;
 220
 221         /* support quote space .mnu */
 222         if ((*p == ' ' && *(p - 1) != '\\') || *p == '\t')
 223             continue;
 224         if (*p >= 'a')
 225             panel = current_panel;
 226         else if (get_other_type () == view_listing)
 227             panel = other_panel;
 228
 229         *p |= 0x20;
 230
 231         switch (*p++)
 232         {
 233         case '!':
 234             p = test_condition (edit_widget, p, condition);
 235             *condition = !*condition;
 236             str_prev_char (&p);
 237             break;
 238         case 'f':              /* file name pattern */
 239             p = extract_arg (p, arg, sizeof (arg));
 240 #ifdef USE_INTERNAL_EDIT
 241             if (edit_widget != NULL)
 242                 *condition = mc_search (arg, edit_get_file_name (edit_widget), search_type) ? 1 : 0;
 243             else
 244 #endif
 245                 *condition = panel != NULL &&
 246                     mc_search (arg, panel->dir.list[panel->selected].fname, search_type) ? 1 : 0;
 247             break;
 248         case 'y':              /* syntax pattern */
 249 #ifdef USE_INTERNAL_EDIT
 250             if (edit_widget != NULL)
 251             {
 252                 const char *syntax_type = edit_get_syntax_type (edit_widget);
 253                 if (syntax_type != NULL)
 254                 {
 255                     p = extract_arg (p, arg, sizeof (arg));
 256                     *condition = mc_search (arg, syntax_type, MC_SEARCH_T_NORMAL) ? 1 : 0;
 257                 }
 258             }
 259 #endif
 260             break;
 261         case 'd':
 262             p = extract_arg (p, arg, sizeof (arg));
 263             *condition = panel != NULL && mc_search (arg, panel->cwd, search_type) ? 1 : 0;
 264             break;
 265         case 't':
 266             p = extract_arg (p, arg, sizeof (arg));
 267             *condition = panel != NULL && test_type (panel, arg) ? 1 : 0;
 268             break;
 269         case 'x':              /* executable */
 270             {
 271                 struct stat status;
 272
 273                 p = extract_arg (p, arg, sizeof (arg));
 274                 if (stat (arg, &status) == 0)
 275                     *condition = is_exe (status.st_mode) ? 1 : 0;
 276                 else
 277                     *condition = 0;
 278                 break;
 279             }
 280         default:
 281             debug_error = 1;
 282             break;
 283         }                       /* switch */
 284
 285     }                           /* while */
 286     return p;
 287 }
 288
 289 /* --------------------------------------------------------------------------------------------- */
 290 /** General purpose condition debug output handler */
 291
 292 static void
 293 debug_out (char *start, char *end, int cond)
 294 {
 295     static char *msg;
 296     int len;
 297
 298     if (start == NULL && end == NULL)
 299     {
 300         /* Show output */
 301         if (debug_flag && msg)
 302         {
 303             len = strlen (msg);
 304             if (len)
 305                 msg[len - 1] = 0;
 306             message (D_NORMAL, _("Debug"), "%s", msg);
 307
 308         }
 309         debug_flag = 0;
 310         g_free (msg);
 311         msg = NULL;
 312     }
 313     else
 314     {
 315         const char *type;
 316         char *p;
 317
 318         /* Save debug info for later output */
 319         if (!debug_flag)
 320             return;
 321         /* Save the result of the condition */
 322         if (debug_error)
 323         {
 324             type = _("ERROR:");
 325             debug_error = 0;
 326         }
 327         else if (cond)
 328             type = _("True:");
 329         else
 330             type = _("False:");
 331         /* This is for debugging, don't need to be super efficient.  */
 332         if (end == NULL)
 333             p = g_strdup_printf ("%s %s %c \n", msg ? msg : "", type, *start);
 334         else
 335             p = g_strdup_printf ("%s %s %.*s \n", msg ? msg : "", type, (int) (end - start), start);
 336         g_free (msg);
 337         msg = p;
 338     }
 339 }
 340
 341 /* --------------------------------------------------------------------------------------------- */
 342 /** Calculates the truth value of one lineful of conditions. Returns
 343    the point just before the end of line. */
 344
 345 static char *
 346 test_line (WEdit * edit_widget, char *p, int *result)
 347 {
 348     int condition;
 349     char operator;
 350     char *debug_start, *debug_end;
 351
 352     /* Repeat till end of line */
 353     while (*p && *p != '\n')
 354     {
 355         /* support quote space .mnu */
 356         while ((*p == ' ' && *(p - 1) != '\\') || *p == '\t')
 357             p++;
 358         if (!*p || *p == '\n')
 359             break;
 360         operator = *p++;
 361         if (*p == '?')
 362         {
 363             debug_flag = 1;
 364             p++;
 365         }
 366         /* support quote space .mnu */
 367         while ((*p == ' ' && *(p - 1) != '\\') || *p == '\t')
 368             p++;
 369         if (!*p || *p == '\n')
 370             break;
 371         condition = 1;          /* True by default */
 372
 373         debug_start = p;
 374         p = test_condition (edit_widget, p, &condition);
 375         debug_end = p;
 376         /* Add one debug statement */
 377         debug_out (debug_start, debug_end, condition);
 378
 379         switch (operator)
 380         {
 381         case '+':
 382         case '=':
 383             /* Assignment */
 384             *result = condition;
 385             break;
 386         case '&':              /* Logical and */
 387             *result &= condition;
 388             break;
 389         case '|':              /* Logical or */
 390             *result |= condition;
 391             break;
 392         default:
 393             debug_error = 1;
 394             break;
 395         }                       /* switch */
 396         /* Add one debug statement */
 397         debug_out (&operator, NULL, *result);
 398
 399     }                           /* while (*p != '\n') */
 400     /* Report debug message */
 401     debug_out (NULL, NULL, 1);
 402
 403     if (!*p || *p == '\n')
 404         str_prev_char (&p);
 405     return p;
 406 }
 407
 408 /* --------------------------------------------------------------------------------------------- */
 409 /** FIXME: recode this routine on version 3.0, it could be cleaner */
 410
 411 static void
 412 execute_menu_command (WEdit * edit_widget, const char *commands, gboolean show_prompt)
 413 {
 414     FILE *cmd_file;
 415     int cmd_file_fd;
 416     int expand_prefix_found = 0;
 417     char *parameter = 0;
 418     gboolean do_quote = FALSE;
 419     char lc_prompt[80];
 420     int col;
 421     char *file_name;
 422     int run_view = 0;
 423
 424     /* Skip menu entry title line */
 425     commands = strchr (commands, '\n');
 426     if (!commands)
 427     {
 428         return;
 429     }
 430
 431     cmd_file_fd = mc_mkstemps (&file_name, "mcusr", SCRIPT_SUFFIX);
 432
 433     if (cmd_file_fd == -1)
 434     {
 435         message (D_ERROR, MSG_ERROR, _("Cannot create temporary command file\n%s"),
 436                  unix_error_string (errno));
 437         return;
 438     }
 439     cmd_file = fdopen (cmd_file_fd, "w");
 440     fputs ("#! /bin/sh\n", cmd_file);
 441     commands++;
 442
 443     for (col = 0; *commands; commands++)
 444     {
 445         if (col == 0)
 446         {
 447             if (*commands != ' ' && *commands != '\t')
 448                 break;
 449             while (*commands == ' ' || *commands == '\t')
 450                 commands++;
 451             if (*commands == 0)
 452                 break;
 453         }
 454         col++;
 455         if (*commands == '\n')
 456             col = 0;
 457         if (parameter)
 458         {
 459             if (*commands == '}')
 460             {
 461                 char *tmp;
 462                 *parameter = 0;
 463                 parameter =
 464                     input_dialog (_("Parameter"), lc_prompt, MC_HISTORY_FM_MENU_EXEC_PARAM, "");
 465                 if (!parameter || !*parameter)
 466                 {
 467                     /* User canceled */
 468                     fclose (cmd_file);
 469                     unlink (file_name);
 470                     g_free (file_name);
 471                     return;
 472                 }
 473                 if (do_quote)
 474                 {
 475                     tmp = name_quote (parameter, 0);
 476                     fputs (tmp, cmd_file);
 477                     g_free (tmp);
 478                 }
 479                 else
 480                     fputs (parameter, cmd_file);
 481                 g_free (parameter);
 482                 parameter = 0;
 483             }
 484             else
 485             {
 486                 if (parameter < &lc_prompt[sizeof (lc_prompt) - 1])
 487                 {
 488                     *parameter++ = *commands;
 489                 }
 490             }
 491         }
 492         else if (expand_prefix_found)
 493         {
 494             expand_prefix_found = 0;
 495             if (g_ascii_isdigit ((gchar) * commands))
 496             {
 497                 do_quote = (atoi (commands) != 0);
 498                 while (g_ascii_isdigit ((gchar) * commands))
 499                     commands++;
 500             }
 501             if (*commands == '{')
 502                 parameter = lc_prompt;
 503             else
 504             {
 505                 char *text = expand_format (edit_widget, *commands, do_quote);
 506                 fputs (text, cmd_file);
 507                 g_free (text);
 508             }
 509         }
 510         else
 511         {
 512             if (*commands == '%')
 513             {
 514                 int i = check_format_view (commands + 1);
 515                 if (i)
 516                 {
 517                     commands += i;
 518                     run_view = 1;
 519                 }
 520                 else
 521                 {
 522                     do_quote = TRUE;    /* Default: Quote expanded macro */
 523                     expand_prefix_found = 1;
 524                 }
 525             }
 526             else
 527                 fputc (*commands, cmd_file);
 528         }
 529     }
 530     fclose (cmd_file);
 531     chmod (file_name, S_IRWXU);
 532     if (run_view)
 533     {
 534         mcview_viewer (file_name, NULL, 0);
 535         dialog_switch_process_pending ();
 536     }
 537     else
 538     {
 539         /* execute the command indirectly to allow execution even
 540          * on no-exec filesystems. */
 541         char *cmd = g_strconcat ("/bin/sh ", file_name, (char *) NULL);
 542         if (!show_prompt)
 543         {
 544             if (system (cmd) == -1)
 545                 message (D_ERROR, MSG_ERROR, "%s", _("Error calling program"));
 546         }
 547         else
 548         {
 549             shell_execute (cmd, EXECUTE_HIDE);
 550         }
 551         g_free (cmd);
 552     }
 553     unlink (file_name);
 554     g_free (file_name);
 555 }
 556
 557 /* --------------------------------------------------------------------------------------------- */
 558 /**
 559  **     Check owner of the menu file. Using menu file is allowed, if
 560  **     owner of the menu is root or the actual user. In either case
 561  **     file should not be group and word-writable.
 562  **
 563  **     Q. Should we apply this routine to system and home menu (and .ext files)?
 564  */
 565
 566 static int
 567 menu_file_own (char *path)
 568 {
 569     struct stat st;
 570
 571     if (stat (path, &st) == 0
 572         && (!st.st_uid || (st.st_uid == geteuid ())) && ((st.st_mode & (S_IWGRP | S_IWOTH)) == 0))
 573     {
 574         return 1;
 575     }
 576     if (verbose)
 577     {
 578         message (D_NORMAL, _("Warning -- ignoring file"),
 579                  _("File %s is not owned by root or you or is world writable.\n"
 580                    "Using it may compromise your security"), path);
 581     }
 582     return 0;
 583 }
 584
 585 /* --------------------------------------------------------------------------------------------- */
 586 /*** public functions ****************************************************************************/
 587 /* --------------------------------------------------------------------------------------------- */
 588
 589 /* Formats defined:
 590    %%  The % character
 591    %f  The current file (if non-local vfs, file will be copied locally and
 592    %f will be full path to it).
 593    %p  The current file
 594    %d  The current working directory
 595    %s  "Selected files"; the tagged files if any, otherwise the current file
 596    %t  Tagged files
 597    %u  Tagged files (and they are untagged on return from expand_format)
 598    %view Runs the commands and pipes standard output to the view command.
 599    If %view is immediately followed by '{', recognize keywords
 600    ascii, hex, nroff and unform
 601
 602    If the format letter is in uppercase, it refers to the other panel.
 603
 604    With a number followed the % character you can turn quoting on (default)
 605    and off. For example:
 606    %f    quote expanded macro
 607    %1f   ditto
 608    %0f   don't quote expanded macro
 609
 610    expand_format returns a memory block that must be free()d.
 611  */
 612
 613 /* Returns how many characters we should advance if %view was found */
 614 int
 615 check_format_view (const char *p)
 616 {
 617     const char *q = p;
 618     if (!strncmp (p, "view", 4))
 619     {
 620         q += 4;
 621         if (*q == '{')
 622         {
 623             for (q++; *q && *q != '}'; q++)
 624             {
 625                 if (!strncmp (q, "ascii", 5))
 626                 {
 627                     mcview_default_hex_mode = 0;
 628                     q += 4;
 629                 }
 630                 else if (!strncmp (q, "hex", 3))
 631                 {
 632                     mcview_default_hex_mode = 1;
 633                     q += 2;
 634                 }
 635                 else if (!strncmp (q, "nroff", 5))
 636                 {
 637                     mcview_default_nroff_flag = 1;
 638                     q += 4;
 639                 }
 640                 else if (!strncmp (q, "unform", 6))
 641                 {
 642                     mcview_default_nroff_flag = 0;
 643                     q += 5;
 644                 }
 645             }
 646             if (*q == '}')
 647                 q++;
 648         }
 649         return q - p;
 650     }
 651     return 0;
 652 }
 653
 654 /* --------------------------------------------------------------------------------------------- */
 655
 656 int
 657 check_format_cd (const char *p)
 658 {
 659     return (strncmp (p, "cd", 2)) ? 0 : 3;
 660 }
 661
 662 /* --------------------------------------------------------------------------------------------- */
 663 /* Check if p has a "^var\{var-name\}" */
 664 /* Returns the number of skipped characters (zero on not found) */
 665 /* V will be set to the expanded variable name */
 666
 667 int
 668 check_format_var (const char *p, char **v)
 669 {
 670     const char *q = p;
 671     char *var_name;
 672     const char *value;
 673     const char *dots = 0;
 674
 675     *v = 0;
 676     if (!strncmp (p, "var{", 4))
 677     {
 678         for (q += 4; *q && *q != '}'; q++)
 679         {
 680             if (*q == ':')
 681                 dots = q + 1;
 682         }
 683         if (!*q)
 684             return 0;
 685
 686         if (!dots || dots == q + 5)
 687         {
 688             message (D_ERROR,
 689                      _("Format error on file Extensions File"),
 690                      !dots ? _("The %%var macro has no default")
 691                      : _("The %%var macro has no variable"));
 692             return 0;
 693         }
 694
 695         /* Copy the variable name */
 696         var_name = g_strndup (p + 4, dots - 2 - (p + 3));
 697
 698         value = getenv (var_name);
 699         g_free (var_name);
 700         if (value)
 701         {
 702             *v = g_strdup (value);
 703             return q - p;
 704         }
 705         var_name = g_strndup (dots, q - dots);
 706         *v = var_name;
 707         return q - p;
 708     }
 709     return 0;
 710 }
 711
 712 /* --------------------------------------------------------------------------------------------- */
 713
 714 char *
 715 expand_format (struct WEdit *edit_widget, char c, gboolean do_quote)
 716 {
 717     WPanel *panel = NULL;
 718     char *(*quote_func) (const char *, int);
 719     char *fname = NULL;
 720     char *result;
 721     char c_lc;
 722
 723 #ifndef USE_INTERNAL_EDIT
 724     (void) edit_widget;
 725 #endif
 726
 727     if (c == '%')
 728         return g_strdup ("%");
 729
 730     if (mc_global.mc_run_mode == MC_RUN_FULL)
 731     {
 732         if (g_ascii_islower ((gchar) c))
 733             panel = current_panel;
 734         else
 735         {
 736             if (get_other_type () != view_listing)
 737                 return g_strdup ("");
 738             panel = other_panel;
 739         }
 740         fname = panel->dir.list[panel->selected].fname;
 741     }
 742 #ifdef USE_INTERNAL_EDIT
 743     else if (mc_global.mc_run_mode == MC_RUN_EDITOR)
 744         fname = (char *) edit_get_file_name (edit_widget);
 745 #endif
 746
 747     if (do_quote)
 748         quote_func = name_quote;
 749     else
 750         quote_func = fake_name_quote;
 751
 752     c_lc = g_ascii_tolower ((gchar) c);
 753
 754     switch (c_lc)
 755     {
 756     case 'f':
 757     case 'p':
 758         return (*quote_func) (fname, 0);
 759     case 'x':
 760         return (*quote_func) (extension (fname), 0);
 761     case 'd':
 762         {
 763             char *cwd;
 764             char *qstr;
 765
 766             cwd = g_malloc (MC_MAXPATHLEN + 1);
 767
 768             if (panel)
 769                 g_strlcpy (cwd, panel->cwd, MC_MAXPATHLEN + 1);
 770             else
 771                 mc_get_current_wd (cwd, MC_MAXPATHLEN + 1);
 772
 773             qstr = (*quote_func) (cwd, 0);
 774
 775             g_free (cwd);
 776
 777             return qstr;
 778         }
 779     case 'i':                  /* indent equal number cursor position in line */
 780 #ifdef USE_INTERNAL_EDIT
 781         if (edit_widget)
 782             return g_strnfill (edit_get_curs_col (edit_widget), ' ');
 783 #endif
 784         break;
 785     case 'y':                  /* syntax type */
 786 #ifdef USE_INTERNAL_EDIT
 787         if (edit_widget)
 788         {
 789             const char *syntax_type = edit_get_syntax_type (edit_widget);
 790             if (syntax_type != NULL)
 791                 return g_strdup (syntax_type);
 792         }
 793 #endif
 794         break;
 795     case 'k':                  /* block file name */
 796     case 'b':                  /* block file name / strip extension */
 797         {
 798 #ifdef USE_INTERNAL_EDIT
 799             if (edit_widget)
 800             {
 801                 char *file = mc_config_get_full_path (EDIT_BLOCK_FILE);
 802                 fname = (*quote_func) (file, 0);
 803                 g_free (file);
 804                 return fname;
 805             }
 806 #endif
 807             if (c_lc == 'b')
 808                 return strip_ext ((*quote_func) (fname, 0));
 809             break;
 810         }
 811     case 'n':                  /* strip extension in editor */
 812 #ifdef USE_INTERNAL_EDIT
 813         if (edit_widget)
 814             return strip_ext ((*quote_func) (fname, 0));
 815 #endif
 816         break;
 817     case 'm':                  /* menu file name */
 818         if (menu)
 819             return (*quote_func) (menu, 0);
 820         break;
 821     case 's':
 822         if (!panel || !panel->marked)
 823             return (*quote_func) (fname, 0);
 824
 825         /* Fall through */
 826
 827     case 't':
 828     case 'u':
 829         {
 830             GString *block;
 831             int i;
 832
 833             if (panel == NULL)
 834                 return g_strdup ("");
 835
 836             block = g_string_sized_new (16);
 837
 838             for (i = 0; i < panel->count; i++)
 839                 if (panel->dir.list[i].f.marked)
 840                 {
 841                     char *tmp;
 842
 843                     tmp = (*quote_func) (panel->dir.list[i].fname, 0);
 844                     g_string_append (block, tmp);
 845                     g_string_append_c (block, ' ');
 846                     g_free (tmp);
 847
 848                     if (c_lc == 'u')
 849                         do_file_mark (panel, i, 0);
 850                 }
 851
 852             return g_string_free (block, FALSE);
 853         }                       /* sub case block */
 854     }                           /* switch */
 855     result = g_strdup ("% ");
 856     result[1] = c;
 857     return result;
 858 }
 859
 860 /* --------------------------------------------------------------------------------------------- */
 861 /**
 862  * If edit_widget is NULL then we are called from the mc menu,
 863  * otherwise we are called from the mcedit menu.
 864  */
 865
 866 gboolean
 867 user_menu_cmd (struct WEdit * edit_widget, const char *menu_file, int selected_entry)
 868 {
 869     char *p;
 870     char *data, **entries;
 871     int max_cols, menu_lines, menu_limit;
 872     int col, i, accept_entry = 1;
 873     int selected, old_patterns;
 874     Listbox *listbox;
 875     gboolean res = FALSE;
 876     gboolean interactive = TRUE;
 877
 878     if (!vfs_current_is_local ())
 879     {
 880         message (D_ERROR, MSG_ERROR, "%s", _("Cannot execute commands on non-local filesystems"));
 881         return FALSE;
 882     }
 883     if (menu_file != NULL)
 884         menu = g_strdup (menu_file);
 885     else
 886         menu = g_strdup (edit_widget ? EDIT_LOCAL_MENU : MC_LOCAL_MENU);
 887     if (!exist_file (menu) || !menu_file_own (menu))
 888     {
 889         if (menu_file != NULL)
 890         {
 891             message (D_ERROR, MSG_ERROR, _("Cannot open file %s\n%s"), menu,
 892                      unix_error_string (errno));
 893             g_free (menu);
 894             menu = NULL;
 895             return FALSE;
 896         }
 897
 898         g_free (menu);
 899         if (edit_widget)
 900             menu = mc_config_get_full_path (EDIT_HOME_MENU);
 901         else
 902             menu = mc_config_get_full_path (MC_USERMENU_FILE);
 903
 904
 905         if (!exist_file (menu))
 906         {
 907             g_free (menu);
 908             menu =
 909                 concat_dir_and_file (mc_config_get_home_dir (),
 910                                      edit_widget ? EDIT_GLOBAL_MENU : MC_GLOBAL_MENU);
 911             if (!exist_file (menu))
 912             {
 913                 g_free (menu);
 914                 menu =
 915                     concat_dir_and_file (mc_global.sysconfig_dir,
 916                                          edit_widget ? EDIT_GLOBAL_MENU : MC_GLOBAL_MENU);
 917                 if (!exist_file (menu))
 918                 {
 919                     g_free (menu);
 920                     menu = concat_dir_and_file
 921                         (mc_global.share_data_dir, edit_widget ? EDIT_GLOBAL_MENU : MC_GLOBAL_MENU);
 922                 }
 923             }
 924         }
 925     }
 926
 927     if (!g_file_get_contents (menu, &data, NULL, NULL))
 928     {
 929         message (D_ERROR, MSG_ERROR, _("Cannot open file%s\n%s"), menu, unix_error_string (errno));
 930         g_free (menu);
 931         menu = NULL;
 932         return FALSE;
 933     }
 934
 935     max_cols = 0;
 936     selected = 0;
 937     menu_limit = 0;
 938     entries = 0;
 939
 940     /* Parse the menu file */
 941     old_patterns = easy_patterns;
 942     p = check_patterns (data);
 943     for (menu_lines = col = 0; *p; str_next_char (&p))
 944     {
 945         if (menu_lines >= menu_limit)
 946         {
 947             char **new_entries;
 948
 949             menu_limit += MAX_ENTRIES;
 950             new_entries = g_try_realloc (entries, sizeof (new_entries[0]) * menu_limit);
 951
 952             if (new_entries == NULL)
 953                 break;
 954
 955             entries = new_entries;
 956             new_entries += menu_limit;
 957             while (--new_entries >= &entries[menu_lines])
 958                 *new_entries = NULL;
 959         }
 960         if (col == 0 && !entries[menu_lines])
 961         {
 962             if (*p == '#')
 963             {
 964                 /* show prompt if first line of external script is #interactive */
 965                 if (selected_entry >= 0 && strncmp (p, "#silent", 7) == 0)
 966                     interactive = FALSE;
 967                 /* A commented menu entry */
 968                 accept_entry = 1;
 969             }
 970             else if (*p == '+')
 971             {
 972                 if (*(p + 1) == '=')
 973                 {
 974                     /* Combined adding and default */
 975                     p = test_line (edit_widget, p + 1, &accept_entry);
 976                     if (selected == 0 && accept_entry)
 977                         selected = menu_lines;
 978                 }
 979                 else
 980                 {
 981                     /* A condition for adding the entry */
 982                     p = test_line (edit_widget, p, &accept_entry);
 983                 }
 984             }
 985             else if (*p == '=')
 986             {
 987                 if (*(p + 1) == '+')
 988                 {
 989                     /* Combined adding and default */
 990                     p = test_line (edit_widget, p + 1, &accept_entry);
 991                     if (selected == 0 && accept_entry)
 992                         selected = menu_lines;
 993                 }
 994                 else
 995                 {
 996                     /* A condition for making the entry default */
 997                     i = 1;
 998                     p = test_line (edit_widget, p, &i);
 999                     if (selected == 0 && i)
1000                         selected = menu_lines;
1001                 }
1002             }
1003             else if (*p != ' ' && *p != '\t' && str_isprint (p))
1004             {
1005                 /* A menu entry title line */
1006                 if (accept_entry)
1007                     entries[menu_lines] = p;
1008                 else
1009                     accept_entry = 1;
1010             }
1011         }
1012         if (*p == '\n')
1013         {
1014             if (entries[menu_lines])
1015             {
1016                 menu_lines++;
1017                 accept_entry = 1;
1018             }
1019             max_cols = max (max_cols, col);
1020             col = 0;
1021         }
1022         else
1023         {
1024             if (*p == '\t')
1025                 *p = ' ';
1026             col++;
1027         }
1028     }
1029
1030     if (menu_lines == 0)
1031     {
1032         message (D_ERROR, MSG_ERROR, _("No suitable entries found in %s"), menu);
1033         res = FALSE;
1034     }
1035     else
1036     {
1037         if (selected_entry >= 0)
1038             selected = selected_entry;
1039         else
1040         {
1041             max_cols = min (max (max_cols, col), MAX_ENTRY_LEN);
1042
1043             /* Create listbox */
1044             listbox = create_listbox_window (menu_lines, max_cols + 2, _("User menu"),
1045                                              "[Menu File Edit]");
1046             /* insert all the items found */
1047             for (i = 0; i < menu_lines; i++)
1048             {
1049                 p = entries[i];
1050                 LISTBOX_APPEND_TEXT (listbox, (unsigned char) p[0],
1051                                      extract_line (p, p + MAX_ENTRY_LEN), p);
1052             }
1053             /* Select the default entry */
1054             listbox_select_entry (listbox->list, selected);
1055
1056             selected = run_listbox (listbox);
1057         }
1058         if (selected >= 0)
1059         {
1060             execute_menu_command (edit_widget, entries[selected], interactive);
1061             res = TRUE;
1062         }
1063
1064         do_refresh ();
1065     }
1066
1067     easy_patterns = old_patterns;
1068     g_free (menu);
1069     menu = NULL;
1070     g_free (entries);
1071     g_free (data);
1072     return res;
1073 }
1074
1075 /* --------------------------------------------------------------------------------------------- */