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 "ui-fileops.h"
  23
  24 #include <cstdio>
  25 #include <cstdlib>
  26 #include <cstring>
  27 #include <memory>
  28
  29 #include <unistd.h>
  30 #include <utime.h>
  31
  32 #include <config.h>
  33
  34 #include "compat.h"
  35 #include "debug.h"
  36 #include "filefilter.h"
  37 #include "intl.h"
  38 #include "layout.h"
  39 #include "main-defines.h"
  40 #include "md5-util.h"
  41 #include "secure-save.h"
  42 #include "utilops.h"
  43
  44 /*
  45  *-----------------------------------------------------------------------------
  46  * generic file information and manipulation routines (public)
  47  *-----------------------------------------------------------------------------
  48  */
  49
  50
  51
  52 void print_term(gboolean err, const gchar *text_utf8)
  53 {
  54         gchar *text_l;
  55
  56         text_l = g_locale_from_utf8(text_utf8, -1, nullptr, nullptr, nullptr);
  57         if (err)
  58                 {
  59                 fputs((text_l) ? text_l : text_utf8, stderr);
  60                 }
  61         else
  62                 {
  63                 fputs((text_l) ? text_l : text_utf8, stdout);
  64                 }
  65         if(command_line && command_line->ssi)
  66                 secure_fputs(command_line->ssi, (text_l) ? text_l : text_utf8);
  67         g_free(text_l);
  68 }
  69
  70 static void encoding_dialog(const gchar *path)
  71 {
  72         static gboolean warned_user = FALSE;
  73         GenericDialog *gd;
  74         GString *string;
  75         const gchar *lc;
  76         const gchar *bf;
  77
  78         if (warned_user) return;
  79         warned_user = TRUE;
  80
  81         lc = getenv("LANG");
  82         bf = getenv("G_BROKEN_FILENAMES");
  83
  84         string = g_string_new(_("One or more filenames are not encoded with the preferred locale character set.\n"));
  85         g_string_append_printf(string, _("Operations on, and display of these files with %s may not succeed.\n"), PACKAGE);
  86         g_string_append(string, "\n");
  87         g_string_append(string, _("If your filenames are not encoded in utf-8, try setting the environment variable G_BROKEN_FILENAMES=1\n"));
  88         if (bf)
  89                 g_string_append_printf(string, _("It appears G_BROKEN_FILENAMES is set to %s\n"), bf);
  90         else
  91                 g_string_append(string, _("It appears G_BROKEN_FILENAMES is not set\n"));
  92         g_string_append(string, "\n");
  93         g_string_append_printf(string, _("The locale appears to be set to \"%s\"\n(set by the LANG environment variable)\n"), (lc) ? lc : "undefined");
  94         if (lc && (strstr(lc, "UTF-8") || strstr(lc, "utf-8")))
  95                 {
  96                 gchar *name;
  97                 name = g_convert(path, -1, "UTF-8", "ISO-8859-1", nullptr, nullptr, nullptr);
  98                 string = g_string_append(string, _("\nPreferred encoding appears to be UTF-8, however the file:\n"));
  99                 g_string_append_printf(string, "\"%s\"\n", (name) ? name : _("[name not displayable]"));
 100
 101                 if (g_utf8_validate(path, -1, nullptr))
 102                         g_string_append_printf(string, _("\"%s\" is encoded in valid UTF-8."), (name) ? name : _("[name not displayable]"));
 103                 else
 104                         g_string_append_printf(string, _("\"%s\" is not encoded in valid UTF-8."), (name) ? name : _("[name not displayable]"));
 105                 g_string_append(string, "\n");
 106                 g_free(name);
 107                 }
 108
 109         gd = generic_dialog_new(_("Filename encoding locale mismatch"),
 110                                 "locale warning", nullptr, TRUE, nullptr, nullptr);
 111         generic_dialog_add_button(gd, GQ_ICON_CLOSE, _("Close"), nullptr, TRUE);
 112
 113         generic_dialog_add_message(gd, GQ_ICON_DIALOG_WARNING,
 114                                    _("Filename encoding locale mismatch"), string->str, TRUE);
 115
 116         gtk_widget_show(gd->dialog);
 117
 118         g_string_free(string, TRUE);
 119 }
 120
 121 #if GQ_DEBUG_PATH_UTF8
 122 gchar *path_to_utf8_debug(const gchar *path, const gchar *file, gint line)
 123 #else
 124 gchar *path_to_utf8(const gchar *path)
 125 #endif
 126 {
 127         gchar *utf8;
 128         GError *error = nullptr;
 129
 130         if (!path) return nullptr;
 131
 132         utf8 = g_filename_to_utf8(path, -1, nullptr, nullptr, &error);
 133         if (error)
 134                 {
 135 #if GQ_DEBUG_PATH_UTF8
 136                 log_printf("%s:%d: Unable to convert filename to UTF-8:\n%s\n%s\n", file, line, path, error->message);
 137 #else
 138                 log_printf("Unable to convert filename to UTF-8:\n%s\n%s\n", path, error->message);
 139 #endif
 140                 g_error_free(error);
 141                 encoding_dialog(path);
 142                 }
 143         if (!utf8)
 144                 {
 145                 /* just let it through, but bad things may happen */
 146                 utf8 = g_strdup(path);
 147                 }
 148
 149         return utf8;
 150 }
 151
 152 #if GQ_DEBUG_PATH_UTF8
 153 gchar *path_from_utf8_debug(const gchar *utf8, const gchar *file, gint line)
 154 #else
 155 gchar *path_from_utf8(const gchar *utf8)
 156 #endif
 157 {
 158         gchar *path;
 159         GError *error = nullptr;
 160
 161         if (!utf8) return nullptr;
 162
 163         path = g_filename_from_utf8(utf8, -1, nullptr, nullptr, &error);
 164         if (error)
 165                 {
 166 #if GQ_DEBUG_PATH_UTF8
 167                 log_printf("%s:%d: Unable to convert filename to locale from UTF-8:\n%s\n%s\n", file, line, utf8, error->message);
 168 #else
 169                 log_printf("Unable to convert filename to locale from UTF-8:\n%s\n%s\n", utf8, error->message);
 170 #endif
 171                 g_error_free(error);
 172                 }
 173         if (!path)
 174                 {
 175                 /* if invalid UTF-8, text probably still in original form, so just copy it */
 176                 path = g_strdup(utf8);
 177                 }
 178
 179         return path;
 180 }
 181
 182 /* first we try the HOME environment var, if that doesn't work, we try g_get_homedir(). */
 183 const gchar *homedir()
 184 {
 185         static gchar *home = nullptr;
 186
 187         if (!home)
 188                 home = path_to_utf8(getenv("HOME"));
 189
 190         if (!home)
 191                 home = path_to_utf8(g_get_home_dir());
 192
 193         DEBUG_1("Home directory: %s", home);
 194
 195         return home;
 196 }
 197
 198 static gchar *xdg_dir_get(const gchar *key, const gchar *fallback)
 199 {
 200         gchar *dir = getenv(key);
 201
 202         if (!dir || dir[0] == '\0')
 203                 {
 204                 return g_build_filename(homedir(), fallback, NULL);
 205                 }
 206
 207         DEBUG_1("Got xdg %s: %s", key, dir);
 208
 209         return path_to_utf8(dir);
 210 }
 211
 212 const gchar *xdg_data_home_get()
 213 {
 214         static const gchar *xdg_data_home = nullptr;
 215
 216         if (xdg_data_home) return xdg_data_home;
 217
 218         xdg_data_home = xdg_dir_get("XDG_DATA_HOME", ".local/share");
 219
 220         return xdg_data_home;
 221 }
 222
 223 const gchar *xdg_config_home_get()
 224 {
 225         static const gchar *xdg_config_home = nullptr;
 226
 227         if (xdg_config_home) return xdg_config_home;
 228
 229         xdg_config_home = xdg_dir_get("XDG_CONFIG_HOME", ".config");
 230
 231         return xdg_config_home;
 232 }
 233
 234 const gchar *xdg_cache_home_get()
 235 {
 236         static const gchar *xdg_cache_home = nullptr;
 237
 238         if (xdg_cache_home) return xdg_cache_home;
 239
 240         xdg_cache_home = xdg_dir_get("XDG_CACHE_HOME", ".cache");
 241
 242         return xdg_cache_home;
 243 }
 244
 245 const gchar *get_rc_dir()
 246 {
 247         static gchar *rc_dir = nullptr;
 248
 249         if (rc_dir) return rc_dir;
 250
 251         if (USE_XDG)
 252                 {
 253                 rc_dir = g_build_filename(xdg_config_home_get(), GQ_APPNAME_LC, NULL);
 254                 }
 255         else
 256                 {
 257                 rc_dir = g_build_filename(homedir(), GQ_RC_DIR, NULL);
 258                 }
 259
 260         return rc_dir;
 261 }
 262
 263 const gchar *get_collections_dir()
 264 {
 265         static gchar *collections_dir = nullptr;
 266
 267         if (collections_dir) return collections_dir;
 268
 269         if (USE_XDG)
 270                 {
 271                 collections_dir = g_build_filename(xdg_data_home_get(), GQ_APPNAME_LC, GQ_COLLECTIONS_DIR, NULL);
 272                 }
 273         else
 274                 {
 275                 collections_dir = g_build_filename(get_rc_dir(), GQ_COLLECTIONS_DIR, NULL);
 276                 }
 277
 278         return collections_dir;
 279 }
 280
 281 const gchar *get_trash_dir()
 282 {
 283         static gchar *trash_dir = nullptr;
 284
 285         if (trash_dir) return trash_dir;
 286
 287         if (USE_XDG)
 288                 {
 289                 trash_dir = g_build_filename(xdg_data_home_get(), GQ_APPNAME_LC, GQ_TRASH_DIR, NULL);
 290                 }
 291         else
 292                 {
 293                 trash_dir = g_build_filename(get_rc_dir(), GQ_TRASH_DIR, NULL);
 294         }
 295
 296         return trash_dir;
 297 }
 298
 299 const gchar *get_window_layouts_dir()
 300 {
 301         static gchar *window_layouts_dir = nullptr;
 302
 303         if (window_layouts_dir) return window_layouts_dir;
 304
 305         if (USE_XDG)
 306                 {
 307                 window_layouts_dir = g_build_filename(xdg_config_home_get(), GQ_APPNAME_LC, GQ_WINDOW_LAYOUTS_DIR, NULL);
 308                 }
 309         else
 310                 {
 311                 window_layouts_dir = g_build_filename(get_rc_dir(), GQ_WINDOW_LAYOUTS_DIR, NULL);
 312                 }
 313
 314         return window_layouts_dir;
 315 }
 316
 317 gboolean stat_utf8(const gchar *s, struct stat *st)
 318 {
 319         gchar *sl;
 320         gboolean ret;
 321
 322         if (!s) return FALSE;
 323         sl = path_from_utf8(s);
 324         ret = (stat(sl, st) == 0);
 325         g_free(sl);
 326
 327         return ret;
 328 }
 329
 330 gboolean lstat_utf8(const gchar *s, struct stat *st)
 331 {
 332         gchar *sl;
 333         gboolean ret;
 334
 335         if (!s) return FALSE;
 336         sl = path_from_utf8(s);
 337         ret = (lstat(sl, st) == 0);
 338         g_free(sl);
 339
 340         return ret;
 341 }
 342
 343 gboolean isname(const gchar *s)
 344 {
 345         struct stat st;
 346
 347         return stat_utf8(s, &st);
 348 }
 349
 350 gboolean isfile(const gchar *s)
 351 {
 352         struct stat st;
 353
 354         return (stat_utf8(s, &st) && S_ISREG(st.st_mode));
 355 }
 356
 357 gboolean isdir(const gchar *s)
 358 {
 359         struct stat st;
 360
 361         return (stat_utf8(s, &st) && S_ISDIR(st.st_mode));
 362 }
 363
 364 gboolean islink(const gchar *s)
 365 {
 366         struct stat st;
 367
 368         return (lstat_utf8(s, &st) && S_ISLNK(st.st_mode));
 369 }
 370
 371 gint64 filesize(const gchar *s)
 372 {
 373         struct stat st;
 374
 375         if (!stat_utf8(s, &st)) return 0;
 376         return st.st_size;
 377 }
 378
 379 time_t filetime(const gchar *s)
 380 {
 381         struct stat st;
 382
 383         if (!stat_utf8(s, &st)) return 0;
 384         return st.st_mtime;
 385 }
 386
 387 gboolean filetime_set(const gchar *s, time_t tval)
 388 {
 389         gboolean ret = FALSE;
 390
 391         if (tval > 0)
 392                 {
 393                 struct utimbuf ut;
 394                 gchar *sl;
 395
 396                 ut.actime = ut.modtime = tval;
 397
 398                 sl = path_from_utf8(s);
 399                 ret = (utime(sl, &ut) == 0);
 400                 g_free(sl);
 401                 }
 402
 403         return ret;
 404 }
 405
 406 gboolean is_readable_file(const gchar *s)
 407 {
 408         if (!s || !s[0] || !isfile(s)) return FALSE;
 409         return access_file(s, R_OK);
 410 }
 411
 412 gboolean access_file(const gchar *s, gint mode)
 413 {
 414         gchar *sl;
 415         gint ret;
 416
 417         if (!s || !s[0]) return FALSE;
 418
 419         sl = path_from_utf8(s);
 420         ret = (access(sl, mode) == 0);
 421         g_free(sl);
 422
 423         return ret;
 424 }
 425
 426 gboolean unlink_file(const gchar *s)
 427 {
 428         gchar *sl;
 429         gboolean ret;
 430
 431         if (!s) return FALSE;
 432
 433         sl = path_from_utf8(s);
 434         ret = (unlink(sl) == 0);
 435         g_free(sl);
 436
 437         return ret;
 438 }
 439
 440 #pragma GCC diagnostic push
 441 #pragma GCC diagnostic ignored "-Wunused-function"
 442 gboolean symlink_utf8_unused(const gchar *source, const gchar *target)
 443 {
 444         gchar *sl;
 445         gchar *tl;
 446         gboolean ret;
 447
 448         if (!source || !target) return FALSE;
 449
 450         sl = path_from_utf8(source);
 451         tl = path_from_utf8(target);
 452
 453         ret = (symlink(sl, tl) == 0);
 454
 455         g_free(sl);
 456         g_free(tl);
 457
 458         return ret;
 459 }
 460 #pragma GCC diagnostic pop
 461
 462 gboolean mkdir_utf8(const gchar *s, gint mode)
 463 {
 464         gchar *sl;
 465         gboolean ret;
 466
 467         if (!s) return FALSE;
 468
 469         sl = path_from_utf8(s);
 470         ret = (mkdir(sl, mode) == 0);
 471         g_free(sl);
 472         return ret;
 473 }
 474
 475 gboolean rmdir_utf8(const gchar *s)
 476 {
 477         gchar *sl;
 478         gboolean ret;
 479
 480         if (!s) return FALSE;
 481
 482         sl = path_from_utf8(s);
 483         ret = (rmdir(sl) == 0);
 484         g_free(sl);
 485
 486         return ret;
 487 }
 488
 489 gboolean copy_file_attributes(const gchar *s, const gchar *t, gint perms, gint mtime)
 490 {
 491         struct stat st;
 492         gchar *sl;
 493         gchar *tl;
 494         gboolean ret = FALSE;
 495
 496         if (!s || !t) return FALSE;
 497
 498         sl = path_from_utf8(s);
 499         tl = path_from_utf8(t);
 500
 501         if (stat(sl, &st) == 0)
 502                 {
 503                 struct utimbuf tb;
 504
 505                 ret = TRUE;
 506
 507                 /* set the dest file attributes to that of source (ignoring errors) */
 508
 509                 if (perms)
 510                         {
 511                         ret = chown(tl, st.st_uid, st.st_gid);
 512                         /* Ignores chown errors, while still doing chown
 513                            (so root still can copy files preserving ownership) */
 514                         ret = TRUE;
 515                         if (chmod(tl, st.st_mode) < 0) {
 516                             struct stat st2;
 517                             if (stat(tl, &st2) != 0 || st2.st_mode != st.st_mode) {
 518                                 ret = FALSE;
 519                             }
 520                         }
 521                         }
 522
 523                 tb.actime = st.st_atime;
 524                 tb.modtime = st.st_mtime;
 525                 if (mtime && utime(tl, &tb) < 0) ret = FALSE;
 526                 }
 527
 528         g_free(sl);
 529         g_free(tl);
 530
 531         return ret;
 532 }
 533
 534 /* paths are in filesystem encoding */
 535 static gboolean hard_linked(const gchar *a, const gchar *b)
 536 {
 537         struct stat sta;
 538         struct stat stb;
 539
 540         if (stat(a, &sta) !=  0 || stat(b, &stb) != 0) return FALSE;
 541
 542         return (sta.st_dev == stb.st_dev &&
 543                 sta.st_ino == stb.st_ino);
 544 }
 545
 546 static void fclose_safe(FILE *fp)
 547 {
 548         if (fp) fclose(fp);
 549 }
 550
 551 gboolean copy_file(const gchar *s, const gchar *t)
 552 {
 553         gchar buf[16384];
 554         size_t b;
 555         gint fd = -1;
 556
 557         std::unique_ptr<gchar, decltype(&g_free)> sl{path_from_utf8(s), g_free};
 558         std::unique_ptr<gchar, decltype(&g_free)> tl{path_from_utf8(t), g_free};
 559
 560         if (hard_linked(sl.get(), tl.get()))
 561                 {
 562                 return TRUE;
 563                 }
 564
 565         /* Do not dereference absolute symlinks, but copy them "as is".
 566         * For a relative symlink, we don't know how to properly change it when
 567         * copied/moved to another dir to keep pointing it to same target as
 568         * a relative symlink, so we turn it into absolute symlink using
 569         * realpath() instead. */
 570         auto copy_symlink = [](const gchar *sl, const gchar *tl) -> gboolean
 571                 {
 572                 struct stat st;
 573                 if (!lstat_utf8(sl, &st) && S_ISLNK(st.st_mode))
 574                         {
 575                         return FALSE;
 576                         }
 577
 578                 gchar *link_target;
 579                 ssize_t i;
 580
 581                 link_target = static_cast<gchar *>(g_malloc(st.st_size + 1));
 582                 i = readlink(sl, link_target, st.st_size);
 583                 if (i<0)
 584                         {
 585                         g_free(link_target);
 586                         return FALSE;  // try a "normal" copy
 587                         }
 588                 link_target[st.st_size] = '\0';
 589
 590                 if (link_target[0] != G_DIR_SEPARATOR) // if it is a relative symlink
 591                         {
 592                         gchar *absolute;
 593
 594                         const gchar *lastslash = strrchr(sl, G_DIR_SEPARATOR);
 595                         gint len = lastslash - sl + 1;
 596
 597                         absolute = static_cast<gchar *>(g_malloc(len + st.st_size + 1));
 598                         strncpy(absolute, sl, len);
 599                         strcpy(absolute + len, link_target);
 600                         g_free(link_target);
 601                         link_target = absolute;
 602
 603                         gchar *realPath;
 604                         realPath = realpath(link_target, nullptr);
 605
 606                         if (realPath != nullptr) // successfully resolved into an absolute path
 607                                 {
 608                                 g_free(link_target);
 609                                 link_target = g_strdup(realPath);
 610                                 g_free(realPath);
 611                                 }
 612                         else                 // could not get absolute path, got some error instead
 613                                 {
 614                                 g_free(link_target);
 615                                 return FALSE;  // so try a "normal" copy
 616                                 }
 617                         }
 618
 619                 if (stat_utf8(tl, &st)) unlink(tl); // first try to remove directory entry in destination directory if such entry exists
 620
 621                 gint success = (symlink(link_target, tl) == 0);
 622                 g_free(link_target);
 623
 624                 return success;
 625                 };
 626
 627         if (copy_symlink(sl.get(), tl.get()))
 628                 {
 629                 return TRUE;
 630                 }
 631
 632         // if symlink did not succeed, continue on to try a copy procedure
 633         std::unique_ptr<FILE, decltype(&fclose_safe)> fi{fopen(sl.get(), "rb"), fclose_safe};
 634         if (!fi)
 635                 {
 636                 return FALSE;
 637                 }
 638
 639         /* First we write to a temporary file, then we rename it on success,
 640            and attributes from original file are copied */
 641         std::unique_ptr<gchar, decltype(&g_free)> randname{g_strconcat(tl.get(), ".tmp_XXXXXX", NULL), g_free};
 642         if (!randname)
 643                 {
 644                 return FALSE;
 645                 }
 646
 647         fd = g_mkstemp(randname.get());
 648         if (fd == -1)
 649                 {
 650                 return FALSE;
 651                 }
 652
 653         std::unique_ptr<FILE, decltype(&fclose_safe)> fo{fdopen(fd, "wb"), fclose_safe};
 654         if (!fo) {
 655                 close(fd);
 656                 return FALSE;
 657         }
 658
 659         while ((b = fread(buf, sizeof(gchar), sizeof(buf), fi.get())) && b != 0)
 660                 {
 661                 if (fwrite(buf, sizeof(gchar), b, fo.get()) != b)
 662                         {
 663                         unlink(randname.get());
 664                         return FALSE;
 665                         }
 666                 }
 667
 668         if (rename(randname.get(), tl.get()) < 0) {
 669                 unlink(randname.get());
 670                 return FALSE;
 671         }
 672
 673         return copy_file_attributes(s, t, TRUE, TRUE);
 674 }
 675
 676 gboolean move_file(const gchar *s, const gchar *t)
 677 {
 678         gchar *sl;
 679         gchar *tl;
 680         gboolean ret = TRUE;
 681
 682         if (!s || !t) return FALSE;
 683
 684         sl = path_from_utf8(s);
 685         tl = path_from_utf8(t);
 686         if (rename(sl, tl) < 0)
 687                 {
 688                 /* this may have failed because moving a file across filesystems
 689                 was attempted, so try copy and delete instead */
 690                 if (copy_file(s, t))
 691                         {
 692                         if (unlink(sl) < 0)
 693                                 {
 694                                 /* err, now we can't delete the source file so return FALSE */
 695                                 ret = FALSE;
 696                                 }
 697                         }
 698                 else
 699                         {
 700                         ret = FALSE;
 701                         }
 702                 }
 703         g_free(sl);
 704         g_free(tl);
 705
 706         return ret;
 707 }
 708
 709 gboolean rename_file(const gchar *s, const gchar *t)
 710 {
 711         gchar *sl;
 712         gchar *tl;
 713         gboolean ret;
 714
 715         if (!s || !t) return FALSE;
 716
 717         sl = path_from_utf8(s);
 718         tl = path_from_utf8(t);
 719         ret = (rename(sl, tl) == 0);
 720         g_free(sl);
 721         g_free(tl);
 722
 723         return ret;
 724 }
 725
 726 gchar *get_current_dir()
 727 {
 728         gchar *pathl;
 729         gchar *path8;
 730
 731         pathl = g_get_current_dir();
 732         path8 = path_to_utf8(pathl);
 733         g_free(pathl);
 734
 735         return path8;
 736 }
 737
 738 void string_list_free(GList *list)
 739 {
 740         g_list_free_full(list, g_free);
 741 }
 742
 743 GList *string_list_copy(const GList *list)
 744 {
 745         GList *new_list = nullptr;
 746         auto work = const_cast<GList *>(list);
 747
 748         while (work)
 749                 {
 750                 gchar *path;
 751
 752                 path = static_cast<gchar *>(work->data);
 753                 work = work->next;
 754
 755                 new_list = g_list_prepend(new_list, g_strdup(path));
 756                 }
 757
 758         return g_list_reverse(new_list);
 759 }
 760
 761 gchar *unique_filename(const gchar *path, const gchar *ext, const gchar *divider, gboolean pad)
 762 {
 763         gchar *unique;
 764         gint n = 1;
 765
 766         if (!ext) ext = "";
 767         if (!divider) divider = "";
 768
 769         unique = g_strconcat(path, ext, NULL);
 770         while (isname(unique))
 771                 {
 772                 g_free(unique);
 773                 if (pad)
 774                         {
 775                         unique = g_strdup_printf("%s%s%03d%s", path, divider, n, ext);
 776                         }
 777                 else
 778                         {
 779                         unique = g_strdup_printf("%s%s%d%s", path, divider, n, ext);
 780                         }
 781                 n++;
 782                 if (n > 999)
 783                         {
 784                         /* well, we tried */
 785                         g_free(unique);
 786                         return nullptr;
 787                         }
 788                 }
 789
 790         return unique;
 791 }
 792
 793 #pragma GCC diagnostic push
 794 #pragma GCC diagnostic ignored "-Wunused-function"
 795 gchar *unique_filename_simple_unused(const gchar *path)
 796 {
 797         gchar *unique;
 798         const gchar *name;
 799         const gchar *ext;
 800
 801         if (!path) return nullptr;
 802
 803         name = filename_from_path(path);
 804         if (!name) return nullptr;
 805
 806         ext = registered_extension_from_path(name);
 807
 808         if (!ext)
 809                 {
 810                 unique = unique_filename(path, nullptr, "_", TRUE);
 811                 }
 812         else
 813                 {
 814                 gchar *base;
 815
 816                 base = remove_extension_from_path(path);
 817                 unique = unique_filename(base, ext, "_", TRUE);
 818                 g_free(base);
 819                 }
 820
 821         return unique;
 822 }
 823 #pragma GCC diagnostic pop
 824
 825 const gchar *filename_from_path(const gchar *path)
 826 {
 827         const gchar *base;
 828
 829         if (!path) return nullptr;
 830
 831         base = strrchr(path, G_DIR_SEPARATOR);
 832         if (base) return base + 1;
 833
 834         return path;
 835 }
 836
 837 gchar *remove_level_from_path(const gchar *path)
 838 {
 839         const gchar *base;
 840
 841         if (!path) return g_strdup("");
 842
 843         base = strrchr(path, G_DIR_SEPARATOR);
 844         /* Take account of a file being in the root ( / ) folder - ensure the returned value
 845          * is at least one character long */
 846         if (base) return g_strndup(path, (strlen(path)-strlen(base)) == 0 ? 1 : (strlen(path)-strlen(base)));
 847
 848         return g_strdup("");
 849 }
 850
 851 gboolean file_extension_match(const gchar *path, const gchar *ext)
 852 {
 853         gint p;
 854         gint e;
 855
 856         if (!path) return FALSE;
 857         if (!ext) return TRUE;
 858
 859         p = strlen(path);
 860         e = strlen(ext);
 861
 862         /** @FIXME utf8 */
 863         return (p > e && g_ascii_strncasecmp(path + p - e, ext, e) == 0);
 864 }
 865
 866 gchar *remove_extension_from_path(const gchar *path)
 867 {
 868         const gchar *reg_ext;
 869
 870         if (!path) return nullptr;
 871
 872         reg_ext = registered_extension_from_path(path);
 873
 874         return g_strndup(path, strlen(path) - (reg_ext == nullptr ? 0 : strlen(reg_ext)));
 875 }
 876
 877 void parse_out_relatives(gchar *path)
 878 {
 879         gint s;
 880         gint t;
 881
 882         if (!path) return;
 883
 884         s = t = 0;
 885
 886         while (path[s] != '\0')
 887                 {
 888                 if (path[s] == G_DIR_SEPARATOR && path[s+1] == '.')
 889                         {
 890                         /* /. occurrence, let's see more */
 891                         gint p = s + 2;
 892
 893                         if (path[p] == G_DIR_SEPARATOR || path[p] == '\0')
 894                                 {
 895                                 /* /./ or /., just skip this part */
 896                                 s = p;
 897                                 continue;
 898                                 }
 899
 900                         if (path[p] == '.' && (path[p+1] == G_DIR_SEPARATOR || path[p+1] == '\0'))
 901                                 {
 902                                 /* /../ or /.., remove previous part, ie. /a/b/../ becomes /a/ */
 903                                 s = p + 1;
 904                                 if (t > 0) t--;
 905                                 while (path[t] != G_DIR_SEPARATOR && t > 0) t--;
 906                                 continue;
 907                                 }
 908                         }
 909
 910                 if (s != t) path[t] = path[s];
 911                 t++;
 912                 s++;
 913                 }
 914
 915         if (t == 0 && path[t] == G_DIR_SEPARATOR) t++;
 916         if (t > 1 && path[t-1] == G_DIR_SEPARATOR) t--;
 917         path[t] = '\0';
 918 }
 919
 920 gboolean file_in_path(const gchar *name)
 921 {
 922         gchar *path;
 923         gchar *namel;
 924         gint p;
 925         gint l;
 926         gboolean ret = FALSE;
 927
 928         if (!name) return FALSE;
 929         path = g_strdup(getenv("PATH"));
 930         if (!path) return FALSE;
 931         namel = path_from_utf8(name);
 932
 933         p = 0;
 934         l = strlen(path);
 935         while (p < l && !ret)
 936                 {
 937                 gchar *f;
 938                 gint e = p;
 939                 while (path[e] != ':' && path[e] != '\0') e++;
 940                 path[e] = '\0';
 941                 e++;
 942                 f = g_build_filename(path + p, namel, NULL);
 943                 if (isfile(f)) ret = TRUE;
 944                 g_free(f);
 945                 p = e;
 946                 }
 947         g_free(namel);
 948         g_free(path);
 949
 950         return ret;
 951 }
 952
 953 gboolean recursive_mkdir_if_not_exists(const gchar *path, mode_t mode)
 954 {
 955         if (!path) return FALSE;
 956
 957         if (!isdir(path))
 958                 {
 959                 gchar *npath = g_strdup(path);
 960                 gchar *p = npath;
 961
 962                 while (p[0] != '\0')
 963                         {
 964                         p++;
 965                         if (p[0] == G_DIR_SEPARATOR || p[0] == '\0')
 966                                 {
 967                                 gboolean end = TRUE;
 968
 969                                 if (p[0] != '\0')
 970                                         {
 971                                         p[0] = '\0';
 972                                         end = FALSE;
 973                                         }
 974
 975                                 if (!isdir(npath))
 976                                         {
 977                                         DEBUG_1("creating sub dir:%s", npath);
 978                                         if (!mkdir_utf8(npath, mode))
 979                                                 {
 980                                                 log_printf("create dir failed: %s\n", npath);
 981                                                 g_free(npath);
 982                                                 return FALSE;
 983                                                 }
 984                                         }
 985
 986                                 if (!end) p[0] = G_DIR_SEPARATOR;
 987                                 }
 988                         }
 989                 g_free(npath);
 990                 }
 991
 992         return TRUE;
 993 }
 994
 995 /* does filename utf8 to filesystem encoding first */
 996 gboolean md5_get_digest_from_file_utf8(const gchar *path, guchar digest[16])
 997 {
 998         gboolean success;
 999         gchar *pathl;
1000
1001         pathl = path_from_utf8(path);
1002         success = md5_get_digest_from_file(pathl, digest);
1003         g_free(pathl);
1004
1005         return success;
1006 }
1007
1008
1009 gchar *md5_text_from_file_utf8(const gchar *path, const gchar *error_text)
1010 {
1011         std::unique_ptr<gchar, decltype(&g_free)> pathl{path_from_utf8(path), g_free};
1012
1013         auto md5_text = md5_get_string_from_file(pathl.get());
1014
1015         return md5_text ? md5_text : g_strdup(error_text);
1016 }
1017
1018 /* Download web file
1019  */
1020 struct WebData
1021 {
1022         GenericDialog *gd;
1023         GCancellable *cancellable;
1024         LayoutWindow *lw;
1025
1026         GtkWidget *progress;
1027         GFile *tmp_g_file;
1028         GFile *web_file;
1029 };
1030
1031 static void web_file_async_ready_cb(GObject *source_object, GAsyncResult *res, gpointer data)
1032 {
1033         GError *error = nullptr;
1034         auto web = static_cast<WebData *>(data);
1035         gchar *tmp_filename;
1036
1037         if (!g_cancellable_is_cancelled(web->cancellable))
1038                 {
1039                 generic_dialog_close(web->gd);
1040                 }
1041
1042         if (g_file_copy_finish(G_FILE(source_object), res, &error))
1043                 {
1044                 tmp_filename = g_file_get_parse_name(web->tmp_g_file);
1045                 g_free(tmp_filename);
1046                 layout_set_path(web->lw, g_file_get_path(web->tmp_g_file));
1047                 }
1048         else
1049                 {
1050                 file_util_warning_dialog(_("Web file download failed"), error->message, GQ_ICON_DIALOG_ERROR, nullptr);
1051                 }
1052
1053         g_object_unref(web->tmp_g_file);
1054         web->tmp_g_file = nullptr;
1055         g_object_unref(web->cancellable);
1056         g_object_unref(web->web_file);
1057 }
1058
1059 static void web_file_progress_cb(goffset current_num_bytes, goffset total_num_bytes, gpointer data)
1060 {
1061         auto web = static_cast<WebData *>(data);
1062
1063         if (!g_cancellable_is_cancelled(web->cancellable))
1064                 {
1065                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(web->progress), static_cast<gdouble>(current_num_bytes) / total_num_bytes);
1066                 }
1067 }
1068
1069 static void download_web_file_cancel_button_cb(GenericDialog *, gpointer data)
1070 {
1071         auto web = static_cast<WebData *>(data);
1072
1073         g_cancellable_cancel(web->cancellable);
1074 }
1075
1076 gboolean download_web_file(const gchar *text, gboolean minimized, gpointer data)
1077 {
1078         gchar *scheme;
1079         auto lw = static_cast<LayoutWindow *>(data);
1080         gchar *tmp_dir;
1081         GError *error = nullptr;
1082         WebData *web;
1083         gchar *base;
1084         gboolean ret = FALSE;
1085         gchar *message;
1086         FileFormatClass format_class;
1087
1088         scheme = g_uri_parse_scheme(text);
1089         if (g_strcmp0("http", scheme) == 0 || g_strcmp0("https", scheme) == 0)
1090                 {
1091                 format_class = filter_file_get_class(text);
1092
1093                 if (format_class == FORMAT_CLASS_IMAGE || format_class == FORMAT_CLASS_RAWIMAGE || format_class == FORMAT_CLASS_VIDEO || format_class == FORMAT_CLASS_DOCUMENT)
1094                         {
1095                         tmp_dir = g_dir_make_tmp("geeqie_XXXXXX", &error);
1096                         if (error)
1097                                 {
1098                                 log_printf("Error: could not create temporary file n%s\n", error->message);
1099                                 g_error_free(error);
1100                                 error = nullptr;
1101                                 ret = TRUE;
1102                                 }
1103                         else
1104                                 {
1105                                 web = g_new0(WebData, 1);
1106                                 web->lw = lw;
1107
1108                                 web->web_file = g_file_new_for_uri(text);
1109
1110                                 base = g_strdup(g_file_get_basename(web->web_file));
1111                                 web->tmp_g_file = g_file_new_for_path(g_build_filename(tmp_dir, base, NULL));
1112
1113                                 web->gd = generic_dialog_new(_("Download web file"), "download_web_file", nullptr, TRUE, download_web_file_cancel_button_cb, web);
1114
1115                                 message = g_strconcat(_("Downloading "), base, NULL);
1116                                 generic_dialog_add_message(web->gd, GQ_ICON_DIALOG_INFO, message, nullptr, FALSE);
1117
1118                                 web->progress = gtk_progress_bar_new();
1119                                 gq_gtk_box_pack_start(GTK_BOX(web->gd->vbox), web->progress, FALSE, FALSE, 0);
1120                                 gtk_widget_show(web->progress);
1121                                 if (minimized)
1122                                         {
1123                                         gtk_window_iconify(GTK_WINDOW(web->gd->dialog));
1124                                         }
1125
1126                                 gtk_widget_show(web->gd->dialog);
1127                                 web->cancellable = g_cancellable_new();
1128                                 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);
1129
1130                                 g_free(base);
1131                                 g_free(message);
1132                                 ret = TRUE;
1133                                 }
1134                         }
1135                 }
1136         else
1137                 {
1138                 ret = FALSE;
1139                 }
1140
1141         g_free(scheme);
1142         return ret;
1143
1144 }
1145
1146 gboolean rmdir_recursive(GFile *file, GCancellable *cancellable, GError **error)
1147 {
1148         g_autoptr(GFileEnumerator) enumerator = nullptr;
1149
1150         enumerator = g_file_enumerate_children(file, G_FILE_ATTRIBUTE_STANDARD_NAME, G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS, cancellable, nullptr);
1151
1152         while (enumerator != nullptr)
1153                 {
1154                  GFile *child;
1155
1156                 if (!g_file_enumerator_iterate(enumerator, nullptr, &child, cancellable, error))
1157                         return FALSE;
1158                 if (child == nullptr)
1159                         break;
1160                 if (!rmdir_recursive(child, cancellable, error))
1161                         return FALSE;
1162                 }
1163
1164         return g_file_delete(file, cancellable, error);
1165 }
1166
1167 /**
1168  * @brief Retrieves the internal scale factor that maps from window coordinates to the actual device pixels
1169  * @param  -
1170  * @returns scale factor
1171  *
1172  *
1173  */
1174 gint scale_factor()
1175 {
1176         LayoutWindow *lw = nullptr;
1177
1178         layout_valid(&lw);
1179         return gtk_widget_get_scale_factor(lw->window);
1180 }
1181 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */