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 <cstdio>
  23 #include <cstdlib>
  24 #include <cstring>
  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, nullptr, nullptr, nullptr);
  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", nullptr, nullptr, nullptr);
  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, nullptr))
  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", nullptr, TRUE, nullptr, nullptr);
 105         generic_dialog_add_button(gd, GTK_STOCK_CLOSE, nullptr, nullptr, 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 = nullptr;
 123
 124         if (!path) return nullptr;
 125
 126         utf8 = g_filename_to_utf8(path, -1, nullptr, nullptr, &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 = nullptr;
 154
 155         if (!utf8) return nullptr;
 156
 157         path = g_filename_from_utf8(utf8, -1, nullptr, nullptr, &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()
 178 {
 179         static gchar *home = nullptr;
 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()
 207 {
 208         static const gchar *xdg_data_home = nullptr;
 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()
 218 {
 219         static const gchar *xdg_config_home = nullptr;
 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()
 229 {
 230         static const gchar *xdg_cache_home = nullptr;
 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()
 240 {
 241         static gchar *rc_dir = nullptr;
 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()
 258 {
 259         static gchar *collections_dir = nullptr;
 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()
 276 {
 277         static gchar *trash_dir = nullptr;
 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()
 294 {
 295         static gchar *window_layouts_dir = nullptr;
 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 #pragma GCC diagnostic push
 435 #pragma GCC diagnostic ignored "-Wunused-function"
 436 gboolean symlink_utf8_unused(const gchar *source, const gchar *target)
 437 {
 438         gchar *sl;
 439         gchar *tl;
 440         gboolean ret;
 441
 442         if (!source || !target) return FALSE;
 443
 444         sl = path_from_utf8(source);
 445         tl = path_from_utf8(target);
 446
 447         ret = (symlink(sl, tl) == 0);
 448
 449         g_free(sl);
 450         g_free(tl);
 451
 452         return ret;
 453 }
 454 #pragma GCC diagnostic pop
 455
 456 gboolean mkdir_utf8(const gchar *s, gint mode)
 457 {
 458         gchar *sl;
 459         gboolean ret;
 460
 461         if (!s) return FALSE;
 462
 463         sl = path_from_utf8(s);
 464         ret = (mkdir(sl, mode) == 0);
 465         g_free(sl);
 466         return ret;
 467 }
 468
 469 gboolean rmdir_utf8(const gchar *s)
 470 {
 471         gchar *sl;
 472         gboolean ret;
 473
 474         if (!s) return FALSE;
 475
 476         sl = path_from_utf8(s);
 477         ret = (rmdir(sl) == 0);
 478         g_free(sl);
 479
 480         return ret;
 481 }
 482
 483 gboolean copy_file_attributes(const gchar *s, const gchar *t, gint perms, gint mtime)
 484 {
 485         struct stat st;
 486         gchar *sl, *tl;
 487         gboolean ret = FALSE;
 488
 489         if (!s || !t) return FALSE;
 490
 491         sl = path_from_utf8(s);
 492         tl = path_from_utf8(t);
 493
 494         if (stat(sl, &st) == 0)
 495                 {
 496                 struct utimbuf tb;
 497
 498                 ret = TRUE;
 499
 500                 /* set the dest file attributes to that of source (ignoring errors) */
 501
 502                 if (perms)
 503                         {
 504                         ret = chown(tl, st.st_uid, st.st_gid);
 505                         /* Ignores chown errors, while still doing chown
 506                            (so root still can copy files preserving ownership) */
 507                         ret = TRUE;
 508                         if (chmod(tl, st.st_mode) < 0) {
 509                             struct stat st2;
 510                             if (stat(tl, &st2) != 0 || st2.st_mode != st.st_mode) {
 511                                 ret = FALSE;
 512                             }
 513                         }
 514                         }
 515
 516                 tb.actime = st.st_atime;
 517                 tb.modtime = st.st_mtime;
 518                 if (mtime && utime(tl, &tb) < 0) ret = FALSE;
 519                 }
 520
 521         g_free(sl);
 522         g_free(tl);
 523
 524         return ret;
 525 }
 526
 527 /* paths are in filesystem encoding */
 528 static gboolean hard_linked(const gchar *a, const gchar *b)
 529 {
 530         struct stat sta;
 531         struct stat stb;
 532
 533         if (stat(a, &sta) !=  0 || stat(b, &stb) != 0) return FALSE;
 534
 535         return (sta.st_dev == stb.st_dev &&
 536                 sta.st_ino == stb.st_ino);
 537 }
 538
 539 gboolean copy_file(const gchar *s, const gchar *t)
 540 {
 541         FILE *fi = nullptr;
 542         FILE *fo = nullptr;
 543         gchar *sl = nullptr;
 544         gchar *tl = nullptr;
 545         gchar *randname = nullptr;
 546         gchar buf[16384];
 547         size_t b;
 548         gint ret = FALSE;
 549         gint fd = -1;
 550
 551         sl = path_from_utf8(s);
 552         tl = path_from_utf8(t);
 553
 554         if (hard_linked(sl, tl))
 555                 {
 556                 ret = TRUE;
 557                 goto end;
 558                 }
 559
 560         /* Do not dereference absolute symlinks, but copy them "as is".
 561         * For a relative symlink, we don't know how to properly change it when
 562         * copied/moved to another dir to keep pointing it to same target as
 563         * a relative symlink, so we turn it into absolute symlink using
 564         * realpath() instead. */
 565         struct stat st;
 566         if (lstat_utf8(sl, &st) && S_ISLNK(st.st_mode))
 567                 {
 568                 gchar *link_target;
 569                 ssize_t i;
 570
 571                 link_target = static_cast<gchar *>(g_malloc(st.st_size + 1));
 572                 i = readlink(sl, link_target, st.st_size);
 573                 if (i<0)
 574                         {
 575                         g_free(link_target);
 576                         goto orig_copy;  // try a "normal" copy
 577                         }
 578                 link_target[st.st_size] = '\0';
 579
 580                 if (link_target[0] != G_DIR_SEPARATOR) // if it is a relative symlink
 581                         {
 582                         gchar *absolute;
 583
 584                         gchar *lastslash = strrchr(sl, G_DIR_SEPARATOR);
 585                         gint len = lastslash - sl + 1;
 586
 587                         absolute = static_cast<gchar *>(g_malloc(len + st.st_size + 1));
 588                         strncpy(absolute, sl, len);
 589                         strcpy(absolute + len, link_target);
 590                         g_free(link_target);
 591                         link_target = absolute;
 592
 593                         gchar *realPath;
 594                         realPath = realpath(link_target, nullptr);
 595
 596                         if (realPath != nullptr) // successfully resolved into an absolute path
 597                                 {
 598                                 g_free(link_target);
 599                                 link_target = g_strdup(realPath);
 600                                 g_free(realPath);
 601                                 }
 602                         else                 // could not get absolute path, got some error instead
 603                                 {
 604                                 g_free(link_target);
 605                                 goto orig_copy;  // so try a "normal" copy
 606                                 }
 607                         }
 608
 609                 if (stat_utf8(tl, &st)) unlink(tl); // first try to remove directory entry in destination directory if such entry exists
 610
 611                 gint success = (symlink(link_target, tl) == 0);
 612                 g_free(link_target);
 613
 614                 if (success)
 615                         {
 616                         ret = TRUE;
 617                         goto end;
 618                         }
 619                 } // if symlink did not succeed, continue on to try a copy procedure
 620         orig_copy:
 621
 622         fi = fopen(sl, "rb");
 623         if (!fi) goto end;
 624
 625         /* First we write to a temporary file, then we rename it on success,
 626            and attributes from original file are copied */
 627         randname = g_strconcat(tl, ".tmp_XXXXXX", NULL);
 628         if (!randname) goto end;
 629
 630         fd = g_mkstemp(randname);
 631         if (fd == -1) goto end;
 632
 633         fo = fdopen(fd, "wb");
 634         if (!fo) {
 635                 close(fd);
 636                 goto end;
 637         }
 638
 639         while ((b = fread(buf, sizeof(gchar), sizeof(buf), fi)) && b != 0)
 640                 {
 641                 if (fwrite(buf, sizeof(gchar), b, fo) != b)
 642                         {
 643                         unlink(randname);
 644                         goto end;
 645                         }
 646                 }
 647
 648         fclose(fi); fi = nullptr;
 649         fclose(fo); fo = nullptr;
 650
 651         if (rename(randname, tl) < 0) {
 652                 unlink(randname);
 653                 goto end;
 654         }
 655
 656         ret = copy_file_attributes(s, t, TRUE, TRUE);
 657
 658 end:
 659         if (fi) fclose(fi);
 660         if (fo) fclose(fo);
 661         if (sl) g_free(sl);
 662         if (tl) g_free(tl);
 663         if (randname) g_free(randname);
 664         return ret;
 665 }
 666
 667 gboolean move_file(const gchar *s, const gchar *t)
 668 {
 669         gchar *sl, *tl;
 670         gboolean ret = TRUE;
 671
 672         if (!s || !t) return FALSE;
 673
 674         sl = path_from_utf8(s);
 675         tl = path_from_utf8(t);
 676         if (rename(sl, tl) < 0)
 677                 {
 678                 /* this may have failed because moving a file across filesystems
 679                 was attempted, so try copy and delete instead */
 680                 if (copy_file(s, t))
 681                         {
 682                         if (unlink(sl) < 0)
 683                                 {
 684                                 /* err, now we can't delete the source file so return FALSE */
 685                                 ret = FALSE;
 686                                 }
 687                         }
 688                 else
 689                         {
 690                         ret = FALSE;
 691                         }
 692                 }
 693         g_free(sl);
 694         g_free(tl);
 695
 696         return ret;
 697 }
 698
 699 gboolean rename_file(const gchar *s, const gchar *t)
 700 {
 701         gchar *sl, *tl;
 702         gboolean ret;
 703
 704         if (!s || !t) return FALSE;
 705
 706         sl = path_from_utf8(s);
 707         tl = path_from_utf8(t);
 708         ret = (rename(sl, tl) == 0);
 709         g_free(sl);
 710         g_free(tl);
 711
 712         return ret;
 713 }
 714
 715 gchar *get_current_dir()
 716 {
 717         gchar *pathl;
 718         gchar *path8;
 719
 720         pathl = g_get_current_dir();
 721         path8 = path_to_utf8(pathl);
 722         g_free(pathl);
 723
 724         return path8;
 725 }
 726
 727 void string_list_free(GList *list)
 728 {
 729         g_list_free_full(list, g_free);
 730 }
 731
 732 GList *string_list_copy(const GList *list)
 733 {
 734         GList *new_list = nullptr;
 735         auto work = const_cast<GList *>(list);
 736
 737         while (work)
 738                 {
 739                 gchar *path;
 740
 741                 path = static_cast<gchar *>(work->data);
 742                 work = work->next;
 743
 744                 new_list = g_list_prepend(new_list, g_strdup(path));
 745                 }
 746
 747         return g_list_reverse(new_list);
 748 }
 749
 750 gchar *unique_filename(const gchar *path, const gchar *ext, const gchar *divider, gboolean pad)
 751 {
 752         gchar *unique;
 753         gint n = 1;
 754
 755         if (!ext) ext = "";
 756         if (!divider) divider = "";
 757
 758         unique = g_strconcat(path, ext, NULL);
 759         while (isname(unique))
 760                 {
 761                 g_free(unique);
 762                 if (pad)
 763                         {
 764                         unique = g_strdup_printf("%s%s%03d%s", path, divider, n, ext);
 765                         }
 766                 else
 767                         {
 768                         unique = g_strdup_printf("%s%s%d%s", path, divider, n, ext);
 769                         }
 770                 n++;
 771                 if (n > 999)
 772                         {
 773                         /* well, we tried */
 774                         g_free(unique);
 775                         return nullptr;
 776                         }
 777                 }
 778
 779         return unique;
 780 }
 781
 782 #pragma GCC diagnostic push
 783 #pragma GCC diagnostic ignored "-Wunused-function"
 784 gchar *unique_filename_simple_unused(const gchar *path)
 785 {
 786         gchar *unique;
 787         const gchar *name;
 788         const gchar *ext;
 789
 790         if (!path) return NULL;
 791
 792         name = filename_from_path(path);
 793         if (!name) return NULL;
 794
 795         ext = registered_extension_from_path(name);
 796
 797         if (!ext)
 798                 {
 799                 unique = unique_filename(path, NULL, "_", TRUE);
 800                 }
 801         else
 802                 {
 803                 gchar *base;
 804
 805                 base = remove_extension_from_path(path);
 806                 unique = unique_filename(base, ext, "_", TRUE);
 807                 g_free(base);
 808                 }
 809
 810         return unique;
 811 }
 812 #pragma GCC diagnostic pop
 813
 814 const gchar *filename_from_path(const gchar *path)
 815 {
 816         const gchar *base;
 817
 818         if (!path) return nullptr;
 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 nullptr;
 860
 861         reg_ext = registered_extension_from_path(path);
 862
 863         return g_strndup(path, strlen(path) - (reg_ext == nullptr ? 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 struct WebData
1007 {
1008         GenericDialog *gd;
1009         GCancellable *cancellable;
1010         LayoutWindow *lw;
1011
1012         GtkWidget *progress;
1013         GFile *tmp_g_file;
1014         GFile *web_file;
1015 };
1016
1017 static void web_file_async_ready_cb(GObject *source_object, GAsyncResult *res, gpointer data)
1018 {
1019         GError *error = nullptr;
1020         auto web = static_cast<WebData *>(data);
1021         gchar *tmp_filename;
1022
1023         if (!g_cancellable_is_cancelled(web->cancellable))
1024                 {
1025                 generic_dialog_close(web->gd);
1026                 }
1027
1028         if (g_file_copy_finish(G_FILE(source_object), res, &error))
1029                 {
1030                 tmp_filename = g_file_get_parse_name(web->tmp_g_file);
1031                 g_free(tmp_filename);
1032                 layout_set_path(web->lw, g_file_get_path(web->tmp_g_file));
1033                 }
1034         else
1035                 {
1036                 file_util_warning_dialog(_("Web file download failed"), error->message, GTK_STOCK_DIALOG_ERROR, nullptr);
1037                 }
1038
1039         g_object_unref(web->tmp_g_file);
1040         web->tmp_g_file = nullptr;
1041         g_object_unref(web->cancellable);
1042         g_object_unref(web->web_file);
1043 }
1044
1045 static void web_file_progress_cb(goffset current_num_bytes, goffset total_num_bytes, gpointer data)
1046 {
1047         auto web = static_cast<WebData *>(data);
1048
1049         if (!g_cancellable_is_cancelled(web->cancellable))
1050                 {
1051                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(web->progress), static_cast<gdouble>(current_num_bytes) / total_num_bytes);
1052                 }
1053 }
1054
1055 static void download_web_file_cancel_button_cb(GenericDialog *, gpointer data)
1056 {
1057         auto web = static_cast<WebData *>(data);
1058
1059         g_cancellable_cancel(web->cancellable);
1060 }
1061
1062 gboolean download_web_file(const gchar *text, gboolean minimized, gpointer data)
1063 {
1064         gchar *scheme;
1065         auto lw = static_cast<LayoutWindow *>(data);
1066         gchar *tmp_dir;
1067         GError *error = nullptr;
1068         WebData *web;
1069         gchar *base;
1070         gboolean ret = FALSE;
1071         gchar *message;
1072         FileFormatClass format_class;
1073
1074         scheme = g_uri_parse_scheme(text);
1075         if (g_strcmp0("http", scheme) == 0 || g_strcmp0("https", scheme) == 0)
1076                 {
1077                 format_class = filter_file_get_class(text);
1078
1079                 if (format_class == FORMAT_CLASS_IMAGE || format_class == FORMAT_CLASS_RAWIMAGE || format_class == FORMAT_CLASS_VIDEO || format_class == FORMAT_CLASS_DOCUMENT)
1080                         {
1081                         tmp_dir = g_dir_make_tmp("geeqie_XXXXXX", &error);
1082                         if (error)
1083                                 {
1084                                 log_printf("Error: could not create temporary file n%s\n", error->message);
1085                                 g_error_free(error);
1086                                 error = nullptr;
1087                                 ret = TRUE;
1088                                 }
1089                         else
1090                                 {
1091                                 web = g_new0(WebData, 1);
1092                                 web->lw = lw;
1093
1094                                 web->web_file = g_file_new_for_uri(text);
1095
1096                                 base = g_strdup(g_file_get_basename(web->web_file));
1097                                 web->tmp_g_file = g_file_new_for_path(g_build_filename(tmp_dir, base, NULL));
1098
1099                                 web->gd = generic_dialog_new(_("Download web file"), "download_web_file", nullptr, TRUE, download_web_file_cancel_button_cb, web);
1100
1101                                 message = g_strconcat(_("Downloading "), base, NULL);
1102                                 generic_dialog_add_message(web->gd, GTK_STOCK_DIALOG_INFO, message, nullptr, FALSE);
1103
1104                                 web->progress = gtk_progress_bar_new();
1105                                 gtk_box_pack_start(GTK_BOX(web->gd->vbox), web->progress, FALSE, FALSE, 0);
1106                                 gtk_widget_show(web->progress);
1107                                 if (minimized)
1108                                         {
1109                                         gtk_window_iconify(GTK_WINDOW(web->gd->dialog));
1110                                         }
1111
1112                                 gtk_widget_show(web->gd->dialog);
1113                                 web->cancellable = g_cancellable_new();
1114                                 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);
1115
1116                                 g_free(base);
1117                                 g_free(message);
1118                                 ret = TRUE;
1119                                 }
1120                         }
1121                 }
1122         else
1123                 {
1124                 ret = FALSE;
1125                 }
1126
1127         g_free(scheme);
1128         return ret;
1129
1130 }
1131
1132 gboolean rmdir_recursive(GFile *file, GCancellable *cancellable, GError **error)
1133 {
1134         g_autoptr(GFileEnumerator) enumerator = nullptr;
1135
1136         enumerator = g_file_enumerate_children(file, G_FILE_ATTRIBUTE_STANDARD_NAME, G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS, cancellable, nullptr);
1137
1138         while (enumerator != nullptr)
1139                 {
1140                  GFile *child;
1141
1142                 if (!g_file_enumerator_iterate(enumerator, nullptr, &child, cancellable, error))
1143                         return FALSE;
1144                 if (child == nullptr)
1145                         break;
1146                 if (!rmdir_recursive(child, cancellable, error))
1147                         return FALSE;
1148                 }
1149
1150         return g_file_delete(file, cancellable, error);
1151 }
1152
1153 /**
1154  * @brief Retrieves the internal scale factor that maps from window coordinates to the actual device pixels
1155  * @param  -
1156  * @returns scale factor
1157  *
1158  *
1159  */
1160 gint scale_factor()
1161 {
1162         LayoutWindow *lw = nullptr;
1163
1164         layout_valid(&lw);
1165         return gtk_widget_get_scale_factor(lw->window);
1166 }
1167 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */