src/ui-fileops.cc

   1 /*
   2  * Copyright (C) 2006 John Ellis
   3  * Copyright (C) 2008 - 2016 The Geeqie Team
   4  *
   5  * Author: John Ellis
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <unistd.h>
  26 #include <utime.h>
  27
  28 #include "main.h"
  29 #include "ui-fileops.h"
  30
  31 #include "md5-util.h"
  32 #include "filefilter.h"
  33 #include "layout.h"
  34 #include "utilops.h"
  35 #include "secure-save.h"
  36
  37 /*
  38  *-----------------------------------------------------------------------------
  39  * generic file information and manipulation routines (public)
  40  *-----------------------------------------------------------------------------
  41  */
  42
  43
  44
  45 void print_term(gboolean err, const gchar *text_utf8)
  46 {
  47         gchar *text_l;
  48
  49         text_l = g_locale_from_utf8(text_utf8, -1, NULL, NULL, NULL);
  50         if (err)
  51                 {
  52                 fputs((text_l) ? text_l : text_utf8, stderr);
  53                 }
  54         else
  55                 {
  56                 fputs((text_l) ? text_l : text_utf8, stdout);
  57                 }
  58         if(command_line && command_line->ssi)
  59                 secure_fputs(command_line->ssi, (text_l) ? text_l : text_utf8);
  60         g_free(text_l);
  61 }
  62
  63 static void encoding_dialog(const gchar *path)
  64 {
  65         static gboolean warned_user = FALSE;
  66         GenericDialog *gd;
  67         GString *string;
  68         const gchar *lc;
  69         const gchar *bf;
  70
  71         if (warned_user) return;
  72         warned_user = TRUE;
  73
  74         lc = getenv("LANG");
  75         bf = getenv("G_BROKEN_FILENAMES");
  76
  77         string = g_string_new("");
  78         g_string_append(string, _("One or more filenames are not encoded with the preferred locale character set.\n"));
  79         g_string_append_printf(string, _("Operations on, and display of these files with %s may not succeed.\n"), PACKAGE);
  80         g_string_append(string, "\n");
  81         g_string_append(string, _("If your filenames are not encoded in utf-8, try setting the environment variable G_BROKEN_FILENAMES=1\n"));
  82         if (bf)
  83                 g_string_append_printf(string, _("It appears G_BROKEN_FILENAMES is set to %s\n"), bf);
  84         else
  85                 g_string_append(string, _("It appears G_BROKEN_FILENAMES is not set\n"));
  86         g_string_append(string, "\n");
  87         g_string_append_printf(string, _("The locale appears to be set to \"%s\"\n(set by the LANG environment variable)\n"), (lc) ? lc : "undefined");
  88         if (lc && (strstr(lc, "UTF-8") || strstr(lc, "utf-8")))
  89                 {
  90                 gchar *name;
  91                 name = g_convert(path, -1, "UTF-8", "ISO-8859-1", NULL, NULL, NULL);
  92                 string = g_string_append(string, _("\nPreferred encoding appears to be UTF-8, however the file:\n"));
  93                 g_string_append_printf(string, "\"%s\"\n", (name) ? name : _("[name not displayable]"));
  94
  95                 if (g_utf8_validate(path, -1, NULL))
  96                         g_string_append_printf(string, _("\"%s\" is encoded in valid UTF-8."), (name) ? name : _("[name not displayable]"));
  97                 else
  98                         g_string_append_printf(string, _("\"%s\" is not encoded in valid UTF-8."), (name) ? name : _("[name not displayable]"));
  99                 g_string_append(string, "\n");
 100                 g_free(name);
 101                 }
 102
 103         gd = generic_dialog_new(_("Filename encoding locale mismatch"),
 104                                 "locale warning", NULL, TRUE, NULL, NULL);
 105         generic_dialog_add_button(gd, GTK_STOCK_CLOSE, NULL, NULL, TRUE);
 106
 107         generic_dialog_add_message(gd, GTK_STOCK_DIALOG_WARNING,
 108                                    _("Filename encoding locale mismatch"), string->str, TRUE);
 109
 110         gtk_widget_show(gd->dialog);
 111
 112         g_string_free(string, TRUE);
 113 }
 114
 115 #if GQ_DEBUG_PATH_UTF8
 116 gchar *path_to_utf8_debug(const gchar *path, const gchar *file, gint line)
 117 #else
 118 gchar *path_to_utf8(const gchar *path)
 119 #endif
 120 {
 121         gchar *utf8;
 122         GError *error = NULL;
 123
 124         if (!path) return NULL;
 125
 126         utf8 = g_filename_to_utf8(path, -1, NULL, NULL, &error);
 127         if (error)
 128                 {
 129 #if GQ_DEBUG_PATH_UTF8
 130                 log_printf("%s:%d: Unable to convert filename to UTF-8:\n%s\n%s\n", file, line, path, error->message);
 131 #else
 132                 log_printf("Unable to convert filename to UTF-8:\n%s\n%s\n", path, error->message);
 133 #endif
 134                 g_error_free(error);
 135                 encoding_dialog(path);
 136                 }
 137         if (!utf8)
 138                 {
 139                 /* just let it through, but bad things may happen */
 140                 utf8 = g_strdup(path);
 141                 }
 142
 143         return utf8;
 144 }
 145
 146 #if GQ_DEBUG_PATH_UTF8
 147 gchar *path_from_utf8_debug(const gchar *utf8, const gchar *file, gint line)
 148 #else
 149 gchar *path_from_utf8(const gchar *utf8)
 150 #endif
 151 {
 152         gchar *path;
 153         GError *error = NULL;
 154
 155         if (!utf8) return NULL;
 156
 157         path = g_filename_from_utf8(utf8, -1, NULL, NULL, &error);
 158         if (error)
 159                 {
 160 #if GQ_DEBUG_PATH_UTF8
 161                 log_printf("%s:%d: Unable to convert filename to locale from UTF-8:\n%s\n%s\n", file, line, utf8, error->message);
 162 #else
 163                 log_printf("Unable to convert filename to locale from UTF-8:\n%s\n%s\n", utf8, error->message);
 164 #endif
 165                 g_error_free(error);
 166                 }
 167         if (!path)
 168                 {
 169                 /* if invalid UTF-8, text probably still in original form, so just copy it */
 170                 path = g_strdup(utf8);
 171                 }
 172
 173         return path;
 174 }
 175
 176 /* first we try the HOME environment var, if that doesn't work, we try g_get_homedir(). */
 177 const gchar *homedir(void)
 178 {
 179         static gchar *home = NULL;
 180
 181         if (!home)
 182                 home = path_to_utf8(getenv("HOME"));
 183
 184         if (!home)
 185                 home = path_to_utf8(g_get_home_dir());
 186
 187         DEBUG_1("Home directory: %s", home);
 188
 189         return home;
 190 }
 191
 192 static gchar *xdg_dir_get(const gchar *key, const gchar *fallback)
 193 {
 194         gchar *dir = getenv(key);
 195
 196         if (!dir || dir[0] == '\0')
 197                 {
 198                 return g_build_filename(homedir(), fallback, NULL);
 199                 }
 200
 201         DEBUG_1("Got xdg %s: %s", key, dir);
 202
 203         return path_to_utf8(dir);
 204 }
 205
 206 const gchar *xdg_data_home_get(void)
 207 {
 208         static const gchar *xdg_data_home = NULL;
 209
 210         if (xdg_data_home) return xdg_data_home;
 211
 212         xdg_data_home = xdg_dir_get("XDG_DATA_HOME", ".local/share");
 213
 214         return xdg_data_home;
 215 }
 216
 217 const gchar *xdg_config_home_get(void)
 218 {
 219         static const gchar *xdg_config_home = NULL;
 220
 221         if (xdg_config_home) return xdg_config_home;
 222
 223         xdg_config_home = xdg_dir_get("XDG_CONFIG_HOME", ".config");
 224
 225         return xdg_config_home;
 226 }
 227
 228 const gchar *xdg_cache_home_get(void)
 229 {
 230         static const gchar *xdg_cache_home = NULL;
 231
 232         if (xdg_cache_home) return xdg_cache_home;
 233
 234         xdg_cache_home = xdg_dir_get("XDG_CACHE_HOME", ".cache");
 235
 236         return xdg_cache_home;
 237 }
 238
 239 const gchar *get_rc_dir(void)
 240 {
 241         static gchar *rc_dir = NULL;
 242
 243         if (rc_dir) return rc_dir;
 244
 245         if (USE_XDG)
 246                 {
 247                 rc_dir = g_build_filename(xdg_config_home_get(), GQ_APPNAME_LC, NULL);
 248                 }
 249         else
 250                 {
 251                 rc_dir = g_build_filename(homedir(), GQ_RC_DIR, NULL);
 252                 }
 253
 254         return rc_dir;
 255 }
 256
 257 const gchar *get_collections_dir(void)
 258 {
 259         static gchar *collections_dir = NULL;
 260
 261         if (collections_dir) return collections_dir;
 262
 263         if (USE_XDG)
 264                 {
 265                 collections_dir = g_build_filename(xdg_data_home_get(), GQ_APPNAME_LC, GQ_COLLECTIONS_DIR, NULL);
 266                 }
 267         else
 268                 {
 269                 collections_dir = g_build_filename(get_rc_dir(), GQ_COLLECTIONS_DIR, NULL);
 270                 }
 271
 272         return collections_dir;
 273 }
 274
 275 const gchar *get_trash_dir(void)
 276 {
 277         static gchar *trash_dir = NULL;
 278
 279         if (trash_dir) return trash_dir;
 280
 281         if (USE_XDG)
 282                 {
 283                 trash_dir = g_build_filename(xdg_data_home_get(), GQ_APPNAME_LC, GQ_TRASH_DIR, NULL);
 284                 }
 285         else
 286                 {
 287                 trash_dir = g_build_filename(get_rc_dir(), GQ_TRASH_DIR, NULL);
 288         }
 289
 290         return trash_dir;
 291 }
 292
 293 const gchar *get_window_layouts_dir(void)
 294 {
 295         static gchar *window_layouts_dir = NULL;
 296
 297         if (window_layouts_dir) return window_layouts_dir;
 298
 299         if (USE_XDG)
 300                 {
 301                 window_layouts_dir = g_build_filename(xdg_config_home_get(), GQ_APPNAME_LC, GQ_WINDOW_LAYOUTS_DIR, NULL);
 302                 }
 303         else
 304                 {
 305                 window_layouts_dir = g_build_filename(get_rc_dir(), GQ_WINDOW_LAYOUTS_DIR, NULL);
 306                 }
 307
 308         return window_layouts_dir;
 309 }
 310
 311 gboolean stat_utf8(const gchar *s, struct stat *st)
 312 {
 313         gchar *sl;
 314         gboolean ret;
 315
 316         if (!s) return FALSE;
 317         sl = path_from_utf8(s);
 318         ret = (stat(sl, st) == 0);
 319         g_free(sl);
 320
 321         return ret;
 322 }
 323
 324 gboolean lstat_utf8(const gchar *s, struct stat *st)
 325 {
 326         gchar *sl;
 327         gboolean ret;
 328
 329         if (!s) return FALSE;
 330         sl = path_from_utf8(s);
 331         ret = (lstat(sl, st) == 0);
 332         g_free(sl);
 333
 334         return ret;
 335 }
 336
 337 gboolean isname(const gchar *s)
 338 {
 339         struct stat st;
 340
 341         return stat_utf8(s, &st);
 342 }
 343
 344 gboolean isfile(const gchar *s)
 345 {
 346         struct stat st;
 347
 348         return (stat_utf8(s, &st) && S_ISREG(st.st_mode));
 349 }
 350
 351 gboolean isdir(const gchar *s)
 352 {
 353         struct stat st;
 354
 355         return (stat_utf8(s, &st) && S_ISDIR(st.st_mode));
 356 }
 357
 358 gboolean islink(const gchar *s)
 359 {
 360         struct stat st;
 361
 362         return (lstat_utf8(s, &st) && S_ISLNK(st.st_mode));
 363 }
 364
 365 gint64 filesize(const gchar *s)
 366 {
 367         struct stat st;
 368
 369         if (!stat_utf8(s, &st)) return 0;
 370         return st.st_size;
 371 }
 372
 373 time_t filetime(const gchar *s)
 374 {
 375         struct stat st;
 376
 377         if (!stat_utf8(s, &st)) return 0;
 378         return st.st_mtime;
 379 }
 380
 381 gboolean filetime_set(const gchar *s, time_t tval)
 382 {
 383         gboolean ret = FALSE;
 384
 385         if (tval > 0)
 386                 {
 387                 struct utimbuf ut;
 388                 gchar *sl;
 389
 390                 ut.actime = ut.modtime = tval;
 391
 392                 sl = path_from_utf8(s);
 393                 ret = (utime(sl, &ut) == 0);
 394                 g_free(sl);
 395                 }
 396
 397         return ret;
 398 }
 399
 400 gboolean is_readable_file(const gchar *s)
 401 {
 402         if (!s || !s[0] || !isfile(s)) return FALSE;
 403         return access_file(s, R_OK);
 404 }
 405
 406 gboolean access_file(const gchar *s, gint mode)
 407 {
 408         gchar *sl;
 409         gint ret;
 410
 411         if (!s || !s[0]) return FALSE;
 412
 413         sl = path_from_utf8(s);
 414         ret = (access(sl, mode) == 0);
 415         g_free(sl);
 416
 417         return ret;
 418 }
 419
 420 gboolean unlink_file(const gchar *s)
 421 {
 422         gchar *sl;
 423         gboolean ret;
 424
 425         if (!s) return FALSE;
 426
 427         sl = path_from_utf8(s);
 428         ret = (unlink(sl) == 0);
 429         g_free(sl);
 430
 431         return ret;
 432 }
 433
 434 //gboolean symlink_utf8(const gchar *source, const gchar *target)
 435 //{
 436         //gchar *sl;
 437         //gchar *tl;
 438         //gboolean ret;
 439
 440         //if (!source || !target) return FALSE;
 441
 442         //sl = path_from_utf8(source);
 443         //tl = path_from_utf8(target);
 444
 445         //ret = (symlink(sl, tl) == 0);
 446
 447         //g_free(sl);
 448         //g_free(tl);
 449
 450         //return ret;
 451 //}
 452
 453 gboolean mkdir_utf8(const gchar *s, gint mode)
 454 {
 455         gchar *sl;
 456         gboolean ret;
 457
 458         if (!s) return FALSE;
 459
 460         sl = path_from_utf8(s);
 461         ret = (mkdir(sl, mode) == 0);
 462         g_free(sl);
 463         return ret;
 464 }
 465
 466 gboolean rmdir_utf8(const gchar *s)
 467 {
 468         gchar *sl;
 469         gboolean ret;
 470
 471         if (!s) return FALSE;
 472
 473         sl = path_from_utf8(s);
 474         ret = (rmdir(sl) == 0);
 475         g_free(sl);
 476
 477         return ret;
 478 }
 479
 480 gboolean copy_file_attributes(const gchar *s, const gchar *t, gint perms, gint mtime)
 481 {
 482         struct stat st;
 483         gchar *sl, *tl;
 484         gboolean ret = FALSE;
 485
 486         if (!s || !t) return FALSE;
 487
 488         sl = path_from_utf8(s);
 489         tl = path_from_utf8(t);
 490
 491         if (stat(sl, &st) == 0)
 492                 {
 493                 struct utimbuf tb;
 494
 495                 ret = TRUE;
 496
 497                 /* set the dest file attributes to that of source (ignoring errors) */
 498
 499                 if (perms)
 500                         {
 501                         ret = chown(tl, st.st_uid, st.st_gid);
 502                         /* Ignores chown errors, while still doing chown
 503                            (so root still can copy files preserving ownership) */
 504                         ret = TRUE;
 505                         if (chmod(tl, st.st_mode) < 0) {
 506                             struct stat st2;
 507                             if (stat(tl, &st2) != 0 || st2.st_mode != st.st_mode) {
 508                                 ret = FALSE;
 509                             }
 510                         }
 511                         }
 512
 513                 tb.actime = st.st_atime;
 514                 tb.modtime = st.st_mtime;
 515                 if (mtime && utime(tl, &tb) < 0) ret = FALSE;
 516                 }
 517
 518         g_free(sl);
 519         g_free(tl);
 520
 521         return ret;
 522 }
 523
 524 /* paths are in filesystem encoding */
 525 static gboolean hard_linked(const gchar *a, const gchar *b)
 526 {
 527         struct stat sta;
 528         struct stat stb;
 529
 530         if (stat(a, &sta) !=  0 || stat(b, &stb) != 0) return FALSE;
 531
 532         return (sta.st_dev == stb.st_dev &&
 533                 sta.st_ino == stb.st_ino);
 534 }
 535
 536 gboolean copy_file(const gchar *s, const gchar *t)
 537 {
 538         FILE *fi = NULL;
 539         FILE *fo = NULL;
 540         gchar *sl = NULL;
 541         gchar *tl = NULL;
 542         gchar *randname = NULL;
 543         gchar buf[16384];
 544         size_t b;
 545         gint ret = FALSE;
 546         gint fd = -1;
 547
 548         sl = path_from_utf8(s);
 549         tl = path_from_utf8(t);
 550
 551         if (hard_linked(sl, tl))
 552                 {
 553                 ret = TRUE;
 554                 goto end;
 555                 }
 556
 557         /* Do not dereference absolute symlinks, but copy them "as is".
 558         * For a relative symlink, we don't know how to properly change it when
 559         * copied/moved to another dir to keep pointing it to same target as
 560         * a relative symlink, so we turn it into absolute symlink using
 561         * realpath() instead. */
 562         struct stat st;
 563         if (lstat_utf8(sl, &st) && S_ISLNK(st.st_mode))
 564                 {
 565                 gchar *link_target;
 566                 ssize_t i;
 567
 568                 link_target = static_cast<gchar *>(g_malloc(st.st_size + 1));
 569                 i = readlink(sl, link_target, st.st_size);
 570                 if (i<0)
 571                         {
 572                         g_free(link_target);
 573                         goto orig_copy;  // try a "normal" copy
 574                         }
 575                 link_target[st.st_size] = '\0';
 576
 577                 if (link_target[0] != G_DIR_SEPARATOR) // if it is a relative symlink
 578                         {
 579                         gchar *absolute;
 580
 581                         gchar *lastslash = strrchr(sl, G_DIR_SEPARATOR);
 582                         gint len = lastslash - sl + 1;
 583
 584                         absolute = static_cast<gchar *>(g_malloc(len + st.st_size + 1));
 585                         strncpy(absolute, sl, len);
 586                         strcpy(absolute + len, link_target);
 587                         g_free(link_target);
 588                         link_target = absolute;
 589
 590                         gchar *realPath;
 591                         realPath = realpath(link_target, NULL);
 592
 593                         if (realPath != NULL) // successfully resolved into an absolute path
 594                                 {
 595                                 g_free(link_target);
 596                                 link_target = g_strdup(realPath);
 597                                 g_free(realPath);
 598                                 }
 599                         else                 // could not get absolute path, got some error instead
 600                                 {
 601                                 g_free(link_target);
 602                                 goto orig_copy;  // so try a "normal" copy
 603                                 }
 604                         }
 605
 606                 if (stat_utf8(tl, &st)) unlink(tl); // first try to remove directory entry in destination directory if such entry exists
 607
 608                 gint success = (symlink(link_target, tl) == 0);
 609                 g_free(link_target);
 610
 611                 if (success)
 612                         {
 613                         ret = TRUE;
 614                         goto end;
 615                         }
 616                 } // if symlink did not succeed, continue on to try a copy procedure
 617         orig_copy:
 618
 619         fi = fopen(sl, "rb");
 620         if (!fi) goto end;
 621
 622         /* First we write to a temporary file, then we rename it on success,
 623            and attributes from original file are copied */
 624         randname = g_strconcat(tl, ".tmp_XXXXXX", NULL);
 625         if (!randname) goto end;
 626
 627         fd = g_mkstemp(randname);
 628         if (fd == -1) goto end;
 629
 630         fo = fdopen(fd, "wb");
 631         if (!fo) {
 632                 close(fd);
 633                 goto end;
 634         }
 635
 636         while ((b = fread(buf, sizeof(gchar), sizeof(buf), fi)) && b != 0)
 637                 {
 638                 if (fwrite(buf, sizeof(gchar), b, fo) != b)
 639                         {
 640                         unlink(randname);
 641                         goto end;
 642                         }
 643                 }
 644
 645         fclose(fi); fi = NULL;
 646         fclose(fo); fo = NULL;
 647
 648         if (rename(randname, tl) < 0) {
 649                 unlink(randname);
 650                 goto end;
 651         }
 652
 653         ret = copy_file_attributes(s, t, TRUE, TRUE);
 654
 655 end:
 656         if (fi) fclose(fi);
 657         if (fo) fclose(fo);
 658         if (sl) g_free(sl);
 659         if (tl) g_free(tl);
 660         if (randname) g_free(randname);
 661         return ret;
 662 }
 663
 664 gboolean move_file(const gchar *s, const gchar *t)
 665 {
 666         gchar *sl, *tl;
 667         gboolean ret = TRUE;
 668
 669         if (!s || !t) return FALSE;
 670
 671         sl = path_from_utf8(s);
 672         tl = path_from_utf8(t);
 673         if (rename(sl, tl) < 0)
 674                 {
 675                 /* this may have failed because moving a file across filesystems
 676                 was attempted, so try copy and delete instead */
 677                 if (copy_file(s, t))
 678                         {
 679                         if (unlink(sl) < 0)
 680                                 {
 681                                 /* err, now we can't delete the source file so return FALSE */
 682                                 ret = FALSE;
 683                                 }
 684                         }
 685                 else
 686                         {
 687                         ret = FALSE;
 688                         }
 689                 }
 690         g_free(sl);
 691         g_free(tl);
 692
 693         return ret;
 694 }
 695
 696 gboolean rename_file(const gchar *s, const gchar *t)
 697 {
 698         gchar *sl, *tl;
 699         gboolean ret;
 700
 701         if (!s || !t) return FALSE;
 702
 703         sl = path_from_utf8(s);
 704         tl = path_from_utf8(t);
 705         ret = (rename(sl, tl) == 0);
 706         g_free(sl);
 707         g_free(tl);
 708
 709         return ret;
 710 }
 711
 712 gchar *get_current_dir(void)
 713 {
 714         gchar *pathl;
 715         gchar *path8;
 716
 717         pathl = g_get_current_dir();
 718         path8 = path_to_utf8(pathl);
 719         g_free(pathl);
 720
 721         return path8;
 722 }
 723
 724 void list_free_wrapper(void *data, void *UNUSED(userdata))
 725 {
 726         g_free(data);
 727 }
 728
 729 void string_list_free(GList *list)
 730 {
 731         g_list_foreach(list, (GFunc)list_free_wrapper, NULL);
 732         g_list_free(list);
 733 }
 734
 735 GList *string_list_copy(const GList *list)
 736 {
 737         GList *new_list = NULL;
 738         GList *work = (GList *) list;
 739
 740         while (work)
 741                 {
 742                 gchar *path;
 743
 744                 path = static_cast<gchar *>(work->data);
 745                 work = work->next;
 746
 747                 new_list = g_list_prepend(new_list, g_strdup(path));
 748                 }
 749
 750         return g_list_reverse(new_list);
 751 }
 752
 753 gchar *unique_filename(const gchar *path, const gchar *ext, const gchar *divider, gboolean pad)
 754 {
 755         gchar *unique;
 756         gint n = 1;
 757
 758         if (!ext) ext = "";
 759         if (!divider) divider = "";
 760
 761         unique = g_strconcat(path, ext, NULL);
 762         while (isname(unique))
 763                 {
 764                 g_free(unique);
 765                 if (pad)
 766                         {
 767                         unique = g_strdup_printf("%s%s%03d%s", path, divider, n, ext);
 768                         }
 769                 else
 770                         {
 771                         unique = g_strdup_printf("%s%s%d%s", path, divider, n, ext);
 772                         }
 773                 n++;
 774                 if (n > 999)
 775                         {
 776                         /* well, we tried */
 777                         g_free(unique);
 778                         return NULL;
 779                         }
 780                 }
 781
 782         return unique;
 783 }
 784
 785 //gchar *unique_filename_simple(const gchar *path)
 786 //{
 787         //gchar *unique;
 788         //const gchar *name;
 789         //const gchar *ext;
 790
 791         //if (!path) return NULL;
 792
 793         //name = filename_from_path(path);
 794         //if (!name) return NULL;
 795
 796         //ext = registered_extension_from_path(name);
 797
 798         //if (!ext)
 799                 //{
 800                 //unique = unique_filename(path, NULL, "_", TRUE);
 801                 //}
 802         //else
 803                 //{
 804                 //gchar *base;
 805
 806                 //base = remove_extension_from_path(path);
 807                 //unique = unique_filename(base, ext, "_", TRUE);
 808                 //g_free(base);
 809                 //}
 810
 811         //return unique;
 812 //}
 813
 814 const gchar *filename_from_path(const gchar *path)
 815 {
 816         const gchar *base;
 817
 818         if (!path) return NULL;
 819
 820         base = strrchr(path, G_DIR_SEPARATOR);
 821         if (base) return base + 1;
 822
 823         return path;
 824 }
 825
 826 gchar *remove_level_from_path(const gchar *path)
 827 {
 828         const gchar *base;
 829
 830         if (!path) return g_strdup("");
 831
 832         base = strrchr(path, G_DIR_SEPARATOR);
 833         /* Take account of a file being in the root ( / ) folder - ensure the returned value
 834          * is at least one character long */
 835         if (base) return g_strndup(path, (strlen(path)-strlen(base)) == 0 ? 1 : (strlen(path)-strlen(base)));
 836
 837         return g_strdup("");
 838 }
 839
 840 gboolean file_extension_match(const gchar *path, const gchar *ext)
 841 {
 842         gint p;
 843         gint e;
 844
 845         if (!path) return FALSE;
 846         if (!ext) return TRUE;
 847
 848         p = strlen(path);
 849         e = strlen(ext);
 850
 851         /** @FIXME utf8 */
 852         return (p > e && g_ascii_strncasecmp(path + p - e, ext, e) == 0);
 853 }
 854
 855 gchar *remove_extension_from_path(const gchar *path)
 856 {
 857         const gchar *reg_ext;
 858
 859         if (!path) return NULL;
 860
 861         reg_ext = registered_extension_from_path(path);
 862
 863         return g_strndup(path, strlen(path) - (reg_ext == NULL ? 0 : strlen(reg_ext)));
 864 }
 865
 866 void parse_out_relatives(gchar *path)
 867 {
 868         gint s, t;
 869
 870         if (!path) return;
 871
 872         s = t = 0;
 873
 874         while (path[s] != '\0')
 875                 {
 876                 if (path[s] == G_DIR_SEPARATOR && path[s+1] == '.')
 877                         {
 878                         /* /. occurrence, let's see more */
 879                         gint p = s + 2;
 880
 881                         if (path[p] == G_DIR_SEPARATOR || path[p] == '\0')
 882                                 {
 883                                 /* /./ or /., just skip this part */
 884                                 s = p;
 885                                 continue;
 886                                 }
 887                         else if (path[p] == '.' && (path[p+1] == G_DIR_SEPARATOR || path[p+1] == '\0'))
 888                                 {
 889                                 /* /../ or /.., remove previous part, ie. /a/b/../ becomes /a/ */
 890                                 s = p + 1;
 891                                 if (t > 0) t--;
 892                                 while (path[t] != G_DIR_SEPARATOR && t > 0) t--;
 893                                 continue;
 894                                 }
 895                         }
 896
 897                 if (s != t) path[t] = path[s];
 898                 t++;
 899                 s++;
 900                 }
 901
 902         if (t == 0 && path[t] == G_DIR_SEPARATOR) t++;
 903         if (t > 1 && path[t-1] == G_DIR_SEPARATOR) t--;
 904         path[t] = '\0';
 905 }
 906
 907 gboolean file_in_path(const gchar *name)
 908 {
 909         gchar *path;
 910         gchar *namel;
 911         gint p, l;
 912         gboolean ret = FALSE;
 913
 914         if (!name) return FALSE;
 915         path = g_strdup(getenv("PATH"));
 916         if (!path) return FALSE;
 917         namel = path_from_utf8(name);
 918
 919         p = 0;
 920         l = strlen(path);
 921         while (p < l && !ret)
 922                 {
 923                 gchar *f;
 924                 gint e = p;
 925                 while (path[e] != ':' && path[e] != '\0') e++;
 926                 path[e] = '\0';
 927                 e++;
 928                 f = g_build_filename(path + p, namel, NULL);
 929                 if (isfile(f)) ret = TRUE;
 930                 g_free(f);
 931                 p = e;
 932                 }
 933         g_free(namel);
 934         g_free(path);
 935
 936         return ret;
 937 }
 938
 939 gboolean recursive_mkdir_if_not_exists(const gchar *path, mode_t mode)
 940 {
 941         if (!path) return FALSE;
 942
 943         if (!isdir(path))
 944                 {
 945                 gchar *npath = g_strdup(path);
 946                 gchar *p = npath;
 947
 948                 while (p[0] != '\0')
 949                         {
 950                         p++;
 951                         if (p[0] == G_DIR_SEPARATOR || p[0] == '\0')
 952                                 {
 953                                 gboolean end = TRUE;
 954
 955                                 if (p[0] != '\0')
 956                                         {
 957                                         p[0] = '\0';
 958                                         end = FALSE;
 959                                         }
 960
 961                                 if (!isdir(npath))
 962                                         {
 963                                         DEBUG_1("creating sub dir:%s", npath);
 964                                         if (!mkdir_utf8(npath, mode))
 965                                                 {
 966                                                 log_printf("create dir failed: %s\n", npath);
 967                                                 g_free(npath);
 968                                                 return FALSE;
 969                                                 }
 970                                         }
 971
 972                                 if (!end) p[0] = G_DIR_SEPARATOR;
 973                                 }
 974                         }
 975                 g_free(npath);
 976                 }
 977
 978         return TRUE;
 979 }
 980
 981 /* does filename utf8 to filesystem encoding first */
 982 gboolean md5_get_digest_from_file_utf8(const gchar *path, guchar digest[16])
 983 {
 984         gboolean success;
 985         gchar *pathl;
 986
 987         pathl = path_from_utf8(path);
 988         success = md5_get_digest_from_file(pathl, digest);
 989         g_free(pathl);
 990
 991         return success;
 992 }
 993
 994
 995 gchar *md5_text_from_file_utf8(const gchar *path, const gchar *error_text)
 996 {
 997         guchar digest[16];
 998
 999         if (!md5_get_digest_from_file_utf8(path, digest)) return g_strdup(error_text);
1000
1001         return md5_digest_to_text(digest);
1002 }
1003
1004 /* Download web file
1005  */
1006 typedef struct _WebData WebData;
1007 struct _WebData
1008 {
1009         GenericDialog *gd;
1010         GCancellable *cancellable;
1011         LayoutWindow *lw;
1012
1013         GtkWidget *progress;
1014         GFile *tmp_g_file;
1015         GFile *web_file;
1016 };
1017
1018 static void web_file_async_ready_cb(GObject *source_object, GAsyncResult *res, gpointer data)
1019 {
1020         GError *error = NULL;
1021         WebData *web = static_cast<WebData *>(data);
1022         gchar *tmp_filename;
1023
1024         if (!g_cancellable_is_cancelled(web->cancellable))
1025                 {
1026                 generic_dialog_close(web->gd);
1027                 }
1028
1029         if (g_file_copy_finish(G_FILE(source_object), res, &error))
1030                 {
1031                 tmp_filename = g_file_get_parse_name(web->tmp_g_file);
1032                 g_free(tmp_filename);
1033                 layout_set_path(web->lw, g_file_get_path(web->tmp_g_file));
1034                 }
1035         else
1036                 {
1037                 file_util_warning_dialog(_("Web file download failed"), error->message, GTK_STOCK_DIALOG_ERROR, NULL);
1038                 }
1039
1040         g_object_unref(web->tmp_g_file);
1041         web->tmp_g_file = NULL;
1042         g_object_unref(web->cancellable);
1043         g_object_unref(web->web_file);
1044 }
1045
1046 static void web_file_progress_cb(goffset current_num_bytes, goffset total_num_bytes, gpointer data)
1047 {
1048         WebData *web = static_cast<WebData *>(data);
1049
1050         if (!g_cancellable_is_cancelled(web->cancellable))
1051                 {
1052                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(web->progress), (gdouble)current_num_bytes / total_num_bytes);
1053                 }
1054 }
1055
1056 static void download_web_file_cancel_button_cb(GenericDialog *UNUSED(gd), gpointer data)
1057 {
1058         WebData *web = static_cast<WebData *>(data);
1059
1060         g_cancellable_cancel(web->cancellable);
1061 }
1062
1063 gboolean download_web_file(const gchar *text, gboolean minimized, gpointer data)
1064 {
1065         gchar *scheme;
1066         LayoutWindow *lw = static_cast<LayoutWindow *>(data);
1067         gchar *tmp_dir;
1068         GError *error = NULL;
1069         WebData *web;
1070         gchar *base;
1071         gboolean ret = FALSE;
1072         gchar *message;
1073         FileFormatClass format_class;
1074
1075         scheme = g_uri_parse_scheme(text);
1076         if (g_strcmp0("http", scheme) == 0 || g_strcmp0("https", scheme) == 0)
1077                 {
1078                 format_class = filter_file_get_class(text);
1079
1080                 if (format_class == FORMAT_CLASS_IMAGE || format_class == FORMAT_CLASS_RAWIMAGE || format_class == FORMAT_CLASS_VIDEO || format_class == FORMAT_CLASS_DOCUMENT)
1081                         {
1082                         tmp_dir = g_dir_make_tmp("geeqie_XXXXXX", &error);
1083                         if (error)
1084                                 {
1085                                 log_printf("Error: could not create temporary file n%s\n", error->message);
1086                                 g_error_free(error);
1087                                 error = NULL;
1088                                 ret = TRUE;
1089                                 }
1090                         else
1091                                 {
1092                                 web = g_new0(WebData, 1);
1093                                 web->lw = lw;
1094
1095                                 web->web_file = g_file_new_for_uri(text);
1096
1097                                 base = g_strdup(g_file_get_basename(web->web_file));
1098                                 web->tmp_g_file = g_file_new_for_path(g_build_filename(tmp_dir, base, NULL));
1099
1100                                 web->gd = generic_dialog_new(_("Download web file"), "download_web_file", NULL, TRUE, download_web_file_cancel_button_cb, web);
1101
1102                                 message = g_strconcat(_("Downloading "), base, NULL);
1103                                 generic_dialog_add_message(web->gd, GTK_STOCK_DIALOG_INFO, message, NULL, FALSE);
1104
1105                                 web->progress = gtk_progress_bar_new();
1106                                 gtk_box_pack_start(GTK_BOX(web->gd->vbox), web->progress, FALSE, FALSE, 0);
1107                                 gtk_widget_show(web->progress);
1108                                 if (minimized)
1109                                         {
1110                                         gtk_window_iconify(GTK_WINDOW(web->gd->dialog));
1111                                         }
1112
1113                                 gtk_widget_show(web->gd->dialog);
1114                                 web->cancellable = g_cancellable_new();
1115                                 g_file_copy_async(web->web_file, web->tmp_g_file, G_FILE_COPY_OVERWRITE, G_PRIORITY_LOW, web->cancellable, web_file_progress_cb, web, web_file_async_ready_cb, web);
1116
1117                                 g_free(base);
1118                                 g_free(message);
1119                                 ret = TRUE;
1120                                 }
1121                         }
1122                 }
1123         else
1124                 {
1125                 ret = FALSE;
1126                 }
1127
1128         g_free(scheme);
1129         return ret;
1130
1131 }
1132
1133 gboolean rmdir_recursive(GFile *file, GCancellable *cancellable, GError **error)
1134 {
1135         g_autoptr(GFileEnumerator) enumerator = NULL;
1136
1137         enumerator = g_file_enumerate_children(file, G_FILE_ATTRIBUTE_STANDARD_NAME, G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS, cancellable, NULL);
1138
1139         while (enumerator != NULL)
1140                 {
1141                  GFile *child;
1142
1143                 if (!g_file_enumerator_iterate(enumerator, NULL, &child, cancellable, error))
1144                         return FALSE;
1145                 if (child == NULL)
1146                         break;
1147                 if (!rmdir_recursive(child, cancellable, error))
1148                         return FALSE;
1149                 }
1150
1151         return g_file_delete(file, cancellable, error);
1152 }
1153
1154 /**
1155  * @brief Retrieves the internal scale factor that maps from window coordinates to the actual device pixels
1156  * @param  -
1157  * @returns scale factor
1158  *
1159  *
1160  */
1161 gint scale_factor()
1162 {
1163         LayoutWindow *lw = NULL;
1164
1165         layout_valid(&lw);
1166         return gtk_widget_get_scale_factor(lw->window);
1167 }
1168 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */