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 <sys/stat.h>
  25 #include <unistd.h>
  26 #include <utime.h>
  27
  28 #include <cstdio>
  29 #include <cstdlib>
  30 #include <cstring>
  31 #include <memory>
  32
  33 #include <glib-object.h>
  34 #include <gtk/gtk.h>
  35
  36 #include <config.h>
  37
  38 #include "compat.h"
  39 #include "debug.h"
  40 #include "filefilter.h"
  41 #include "intl.h"
  42 #include "layout.h"
  43 #include "main-defines.h"
  44 #include "md5-util.h"
  45 #include "options.h"
  46 #include "secure-save.h"
  47 #include "typedefs.h"
  48 #include "ui-utildlg.h"
  49 #include "utilops.h"
  50
  51 /*
  52  *-----------------------------------------------------------------------------
  53  * generic file information and manipulation routines (public)
  54  *-----------------------------------------------------------------------------
  55  */
  56
  57
  58
  59 void print_term(gboolean err, const gchar *text_utf8)
  60 {
  61         gchar *text_l;
  62
  63         text_l = g_locale_from_utf8(text_utf8, -1, nullptr, nullptr, nullptr);
  64         if (err)
  65                 {
  66                 fputs((text_l) ? text_l : text_utf8, stderr);
  67                 }
  68         else
  69                 {
  70                 fputs((text_l) ? text_l : text_utf8, stdout);
  71                 }
  72         if(command_line && command_line->ssi)
  73                 secure_fputs(command_line->ssi, (text_l) ? text_l : text_utf8);
  74         g_free(text_l);
  75 }
  76
  77 static void encoding_dialog(const gchar *path)
  78 {
  79         static gboolean warned_user = FALSE;
  80         GenericDialog *gd;
  81         GString *string;
  82         const gchar *lc;
  83         const gchar *bf;
  84
  85         if (warned_user) return;
  86         warned_user = TRUE;
  87
  88         lc = getenv("LANG");
  89         bf = getenv("G_BROKEN_FILENAMES");
  90
  91         string = g_string_new(_("One or more filenames are not encoded with the preferred locale character set.\n"));
  92         g_string_append_printf(string, _("Operations on, and display of these files with %s may not succeed.\n"), PACKAGE);
  93         g_string_append(string, "\n");
  94         g_string_append(string, _("If your filenames are not encoded in utf-8, try setting the environment variable G_BROKEN_FILENAMES=1\n"));
  95         if (bf)
  96                 g_string_append_printf(string, _("It appears G_BROKEN_FILENAMES is set to %s\n"), bf);
  97         else
  98                 g_string_append(string, _("It appears G_BROKEN_FILENAMES is not set\n"));
  99         g_string_append(string, "\n");
 100         g_string_append_printf(string, _("The locale appears to be set to \"%s\"\n(set by the LANG environment variable)\n"), (lc) ? lc : "undefined");
 101         if (lc && (strstr(lc, "UTF-8") || strstr(lc, "utf-8")))
 102                 {
 103                 gchar *name;
 104                 name = g_convert(path, -1, "UTF-8", "ISO-8859-1", nullptr, nullptr, nullptr);
 105                 string = g_string_append(string, _("\nPreferred encoding appears to be UTF-8, however the file:\n"));
 106                 g_string_append_printf(string, "\"%s\"\n", (name) ? name : _("[name not displayable]"));
 107
 108                 if (g_utf8_validate(path, -1, nullptr))
 109                         g_string_append_printf(string, _("\"%s\" is encoded in valid UTF-8."), (name) ? name : _("[name not displayable]"));
 110                 else
 111                         g_string_append_printf(string, _("\"%s\" is not encoded in valid UTF-8."), (name) ? name : _("[name not displayable]"));
 112                 g_string_append(string, "\n");
 113                 g_free(name);
 114                 }
 115
 116         gd = generic_dialog_new(_("Filename encoding locale mismatch"),
 117                                 "locale warning", nullptr, TRUE, nullptr, nullptr);
 118         generic_dialog_add_button(gd, GQ_ICON_CLOSE, _("Close"), nullptr, TRUE);
 119
 120         generic_dialog_add_message(gd, GQ_ICON_DIALOG_WARNING,
 121                                    _("Filename encoding locale mismatch"), string->str, TRUE);
 122
 123         gtk_widget_show(gd->dialog);
 124
 125         g_string_free(string, TRUE);
 126 }
 127
 128 #if GQ_DEBUG_PATH_UTF8
 129 gchar *path_to_utf8_debug(const gchar *path, const gchar *file, gint line)
 130 #else
 131 gchar *path_to_utf8(const gchar *path)
 132 #endif
 133 {
 134         gchar *utf8;
 135         GError *error = nullptr;
 136
 137         if (!path) return nullptr;
 138
 139         utf8 = g_filename_to_utf8(path, -1, nullptr, nullptr, &error);
 140         if (error)
 141                 {
 142 #if GQ_DEBUG_PATH_UTF8
 143                 log_printf("%s:%d: Unable to convert filename to UTF-8:\n%s\n%s\n", file, line, path, error->message);
 144 #else
 145                 log_printf("Unable to convert filename to UTF-8:\n%s\n%s\n", path, error->message);
 146 #endif
 147                 g_error_free(error);
 148                 encoding_dialog(path);
 149                 }
 150         if (!utf8)
 151                 {
 152                 /* just let it through, but bad things may happen */
 153                 utf8 = g_strdup(path);
 154                 }
 155
 156         return utf8;
 157 }
 158
 159 #if GQ_DEBUG_PATH_UTF8
 160 gchar *path_from_utf8_debug(const gchar *utf8, const gchar *file, gint line)
 161 #else
 162 gchar *path_from_utf8(const gchar *utf8)
 163 #endif
 164 {
 165         gchar *path;
 166         GError *error = nullptr;
 167
 168         if (!utf8) return nullptr;
 169
 170         path = g_filename_from_utf8(utf8, -1, nullptr, nullptr, &error);
 171         if (error)
 172                 {
 173 #if GQ_DEBUG_PATH_UTF8
 174                 log_printf("%s:%d: Unable to convert filename to locale from UTF-8:\n%s\n%s\n", file, line, utf8, error->message);
 175 #else
 176                 log_printf("Unable to convert filename to locale from UTF-8:\n%s\n%s\n", utf8, error->message);
 177 #endif
 178                 g_error_free(error);
 179                 }
 180         if (!path)
 181                 {
 182                 /* if invalid UTF-8, text probably still in original form, so just copy it */
 183                 path = g_strdup(utf8);
 184                 }
 185
 186         return path;
 187 }
 188
 189 /* first we try the HOME environment var, if that doesn't work, we try g_get_homedir(). */
 190 const gchar *homedir()
 191 {
 192         static gchar *home = nullptr;
 193
 194         if (!home)
 195                 home = path_to_utf8(getenv("HOME"));
 196
 197         if (!home)
 198                 home = path_to_utf8(g_get_home_dir());
 199
 200         DEBUG_1("Home directory: %s", home);
 201
 202         return home;
 203 }
 204
 205 static gchar *xdg_dir_get(const gchar *key, const gchar *fallback)
 206 {
 207         gchar *dir = getenv(key);
 208
 209         if (!dir || dir[0] == '\0')
 210                 {
 211                 return g_build_filename(homedir(), fallback, NULL);
 212                 }
 213
 214         DEBUG_1("Got xdg %s: %s", key, dir);
 215
 216         return path_to_utf8(dir);
 217 }
 218
 219 const gchar *xdg_data_home_get()
 220 {
 221         static const gchar *xdg_data_home = nullptr;
 222
 223         if (xdg_data_home) return xdg_data_home;
 224
 225         xdg_data_home = xdg_dir_get("XDG_DATA_HOME", ".local/share");
 226
 227         return xdg_data_home;
 228 }
 229
 230 const gchar *xdg_config_home_get()
 231 {
 232         static const gchar *xdg_config_home = nullptr;
 233
 234         if (xdg_config_home) return xdg_config_home;
 235
 236         xdg_config_home = xdg_dir_get("XDG_CONFIG_HOME", ".config");
 237
 238         return xdg_config_home;
 239 }
 240
 241 const gchar *xdg_cache_home_get()
 242 {
 243         static const gchar *xdg_cache_home = nullptr;
 244
 245         if (xdg_cache_home) return xdg_cache_home;
 246
 247         xdg_cache_home = xdg_dir_get("XDG_CACHE_HOME", ".cache");
 248
 249         return xdg_cache_home;
 250 }
 251
 252 const gchar *get_rc_dir()
 253 {
 254         static gchar *rc_dir = nullptr;
 255
 256         if (rc_dir) return rc_dir;
 257
 258         if (USE_XDG)
 259                 {
 260                 rc_dir = g_build_filename(xdg_config_home_get(), GQ_APPNAME_LC, NULL);
 261                 }
 262         else
 263                 {
 264                 rc_dir = g_build_filename(homedir(), GQ_RC_DIR, NULL);
 265                 }
 266
 267         return rc_dir;
 268 }
 269
 270 const gchar *get_collections_dir()
 271 {
 272         static gchar *collections_dir = nullptr;
 273
 274         if (collections_dir) return collections_dir;
 275
 276         if (USE_XDG)
 277                 {
 278                 collections_dir = g_build_filename(xdg_data_home_get(), GQ_APPNAME_LC, GQ_COLLECTIONS_DIR, NULL);
 279                 }
 280         else
 281                 {
 282                 collections_dir = g_build_filename(get_rc_dir(), GQ_COLLECTIONS_DIR, NULL);
 283                 }
 284
 285         return collections_dir;
 286 }
 287
 288 const gchar *get_trash_dir()
 289 {
 290         static gchar *trash_dir = nullptr;
 291
 292         if (trash_dir) return trash_dir;
 293
 294         if (USE_XDG)
 295                 {
 296                 trash_dir = g_build_filename(xdg_data_home_get(), GQ_APPNAME_LC, GQ_TRASH_DIR, NULL);
 297                 }
 298         else
 299                 {
 300                 trash_dir = g_build_filename(get_rc_dir(), GQ_TRASH_DIR, NULL);
 301         }
 302
 303         return trash_dir;
 304 }
 305
 306 const gchar *get_window_layouts_dir()
 307 {
 308         static gchar *window_layouts_dir = nullptr;
 309
 310         if (window_layouts_dir) return window_layouts_dir;
 311
 312         if (USE_XDG)
 313                 {
 314                 window_layouts_dir = g_build_filename(xdg_config_home_get(), GQ_APPNAME_LC, GQ_WINDOW_LAYOUTS_DIR, NULL);
 315                 }
 316         else
 317                 {
 318                 window_layouts_dir = g_build_filename(get_rc_dir(), GQ_WINDOW_LAYOUTS_DIR, NULL);
 319                 }
 320
 321         return window_layouts_dir;
 322 }
 323
 324 gboolean stat_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 = (stat(sl, st) == 0);
 332         g_free(sl);
 333
 334         return ret;
 335 }
 336
 337 gboolean lstat_utf8(const gchar *s, struct stat *st)
 338 {
 339         gchar *sl;
 340         gboolean ret;
 341
 342         if (!s) return FALSE;
 343         sl = path_from_utf8(s);
 344         ret = (lstat(sl, st) == 0);
 345         g_free(sl);
 346
 347         return ret;
 348 }
 349
 350 gboolean isname(const gchar *s)
 351 {
 352         struct stat st;
 353
 354         return stat_utf8(s, &st);
 355 }
 356
 357 gboolean isfile(const gchar *s)
 358 {
 359         struct stat st;
 360
 361         return (stat_utf8(s, &st) && S_ISREG(st.st_mode));
 362 }
 363
 364 gboolean isdir(const gchar *s)
 365 {
 366         struct stat st;
 367
 368         return (stat_utf8(s, &st) && S_ISDIR(st.st_mode));
 369 }
 370
 371 gboolean islink(const gchar *s)
 372 {
 373         struct stat st;
 374
 375         return (lstat_utf8(s, &st) && S_ISLNK(st.st_mode));
 376 }
 377
 378 gint64 filesize(const gchar *s)
 379 {
 380         struct stat st;
 381
 382         if (!stat_utf8(s, &st)) return 0;
 383         return st.st_size;
 384 }
 385
 386 time_t filetime(const gchar *s)
 387 {
 388         struct stat st;
 389
 390         if (!stat_utf8(s, &st)) return 0;
 391         return st.st_mtime;
 392 }
 393
 394 gboolean filetime_set(const gchar *s, time_t tval)
 395 {
 396         gboolean ret = FALSE;
 397
 398         if (tval > 0)
 399                 {
 400                 struct utimbuf ut;
 401                 gchar *sl;
 402
 403                 ut.actime = ut.modtime = tval;
 404
 405                 sl = path_from_utf8(s);
 406                 ret = (utime(sl, &ut) == 0);
 407                 g_free(sl);
 408                 }
 409
 410         return ret;
 411 }
 412
 413 gboolean is_readable_file(const gchar *s)
 414 {
 415         if (!s || !s[0] || !isfile(s)) return FALSE;
 416         return access_file(s, R_OK);
 417 }
 418
 419 gboolean access_file(const gchar *s, gint mode)
 420 {
 421         gchar *sl;
 422         gint ret;
 423
 424         if (!s || !s[0]) return FALSE;
 425
 426         sl = path_from_utf8(s);
 427         ret = (access(sl, mode) == 0);
 428         g_free(sl);
 429
 430         return ret;
 431 }
 432
 433 gboolean unlink_file(const gchar *s)
 434 {
 435         gchar *sl;
 436         gboolean ret;
 437
 438         if (!s) return FALSE;
 439
 440         sl = path_from_utf8(s);
 441         ret = (unlink(sl) == 0);
 442         g_free(sl);
 443
 444         return ret;
 445 }
 446
 447 #pragma GCC diagnostic push
 448 #pragma GCC diagnostic ignored "-Wunused-function"
 449 gboolean symlink_utf8_unused(const gchar *source, const gchar *target)
 450 {
 451         gchar *sl;
 452         gchar *tl;
 453         gboolean ret;
 454
 455         if (!source || !target) return FALSE;
 456
 457         sl = path_from_utf8(source);
 458         tl = path_from_utf8(target);
 459
 460         ret = (symlink(sl, tl) == 0);
 461
 462         g_free(sl);
 463         g_free(tl);
 464
 465         return ret;
 466 }
 467 #pragma GCC diagnostic pop
 468
 469 gboolean mkdir_utf8(const gchar *s, gint mode)
 470 {
 471         gchar *sl;
 472         gboolean ret;
 473
 474         if (!s) return FALSE;
 475
 476         sl = path_from_utf8(s);
 477         ret = (mkdir(sl, mode) == 0);
 478         g_free(sl);
 479         return ret;
 480 }
 481
 482 gboolean rmdir_utf8(const gchar *s)
 483 {
 484         gchar *sl;
 485         gboolean ret;
 486
 487         if (!s) return FALSE;
 488
 489         sl = path_from_utf8(s);
 490         ret = (rmdir(sl) == 0);
 491         g_free(sl);
 492
 493         return ret;
 494 }
 495
 496 gboolean copy_file_attributes(const gchar *s, const gchar *t, gint perms, gint mtime)
 497 {
 498         struct stat st;
 499         gchar *sl;
 500         gchar *tl;
 501         gboolean ret = FALSE;
 502
 503         if (!s || !t) return FALSE;
 504
 505         sl = path_from_utf8(s);
 506         tl = path_from_utf8(t);
 507
 508         if (stat(sl, &st) == 0)
 509                 {
 510                 struct utimbuf tb;
 511
 512                 ret = TRUE;
 513
 514                 /* set the dest file attributes to that of source (ignoring errors) */
 515
 516                 if (perms)
 517                         {
 518                         ret = chown(tl, st.st_uid, st.st_gid);
 519                         /* Ignores chown errors, while still doing chown
 520                            (so root still can copy files preserving ownership) */
 521                         ret = TRUE;
 522                         if (chmod(tl, st.st_mode) < 0) {
 523                             struct stat st2;
 524                             if (stat(tl, &st2) != 0 || st2.st_mode != st.st_mode) {
 525                                 ret = FALSE;
 526                             }
 527                         }
 528                         }
 529
 530                 tb.actime = st.st_atime;
 531                 tb.modtime = st.st_mtime;
 532                 if (mtime && utime(tl, &tb) < 0) ret = FALSE;
 533                 }
 534
 535         g_free(sl);
 536         g_free(tl);
 537
 538         return ret;
 539 }
 540
 541 /* paths are in filesystem encoding */
 542 static gboolean hard_linked(const gchar *a, const gchar *b)
 543 {
 544         struct stat sta;
 545         struct stat stb;
 546
 547         if (stat(a, &sta) !=  0 || stat(b, &stb) != 0) return FALSE;
 548
 549         return (sta.st_dev == stb.st_dev &&
 550                 sta.st_ino == stb.st_ino);
 551 }
 552
 553 static void fclose_safe(FILE *fp)
 554 {
 555         if (fp) fclose(fp);
 556 }
 557
 558 gboolean copy_file(const gchar *s, const gchar *t)
 559 {
 560         gchar buf[16384];
 561         size_t b;
 562         gint fd = -1;
 563
 564         std::unique_ptr<gchar, decltype(&g_free)> sl{path_from_utf8(s), g_free};
 565         std::unique_ptr<gchar, decltype(&g_free)> tl{path_from_utf8(t), g_free};
 566
 567         if (hard_linked(sl.get(), tl.get()))
 568                 {
 569                 return TRUE;
 570                 }
 571
 572         /* Do not dereference absolute symlinks, but copy them "as is".
 573         * For a relative symlink, we don't know how to properly change it when
 574         * copied/moved to another dir to keep pointing it to same target as
 575         * a relative symlink, so we turn it into absolute symlink using
 576         * realpath() instead. */
 577         auto copy_symlink = [](const gchar *sl, const gchar *tl) -> gboolean
 578                 {
 579                 struct stat st;
 580                 if (!lstat_utf8(sl, &st) && S_ISLNK(st.st_mode))
 581                         {
 582                         return FALSE;
 583                         }
 584
 585                 gchar *link_target;
 586                 ssize_t i;
 587
 588                 link_target = static_cast<gchar *>(g_malloc(st.st_size + 1));
 589                 i = readlink(sl, link_target, st.st_size);
 590                 if (i<0)
 591                         {
 592                         g_free(link_target);
 593                         return FALSE;  // try a "normal" copy
 594                         }
 595                 link_target[st.st_size] = '\0';
 596
 597                 if (link_target[0] != G_DIR_SEPARATOR) // if it is a relative symlink
 598                         {
 599                         gchar *absolute;
 600
 601                         const gchar *lastslash = strrchr(sl, G_DIR_SEPARATOR);
 602                         gint len = lastslash - sl + 1;
 603
 604                         absolute = static_cast<gchar *>(g_malloc(len + st.st_size + 1));
 605                         strncpy(absolute, sl, len);
 606                         strcpy(absolute + len, link_target);
 607                         g_free(link_target);
 608                         link_target = absolute;
 609
 610                         gchar *realPath;
 611                         realPath = realpath(link_target, nullptr);
 612
 613                         if (realPath != nullptr) // successfully resolved into an absolute path
 614                                 {
 615                                 g_free(link_target);
 616                                 link_target = g_strdup(realPath);
 617                                 g_free(realPath);
 618                                 }
 619                         else                 // could not get absolute path, got some error instead
 620                                 {
 621                                 g_free(link_target);
 622                                 return FALSE;  // so try a "normal" copy
 623                                 }
 624                         }
 625
 626                 if (stat_utf8(tl, &st)) unlink(tl); // first try to remove directory entry in destination directory if such entry exists
 627
 628                 gint success = (symlink(link_target, tl) == 0);
 629                 g_free(link_target);
 630
 631                 return success;
 632                 };
 633
 634         if (copy_symlink(sl.get(), tl.get()))
 635                 {
 636                 return TRUE;
 637                 }
 638
 639         // if symlink did not succeed, continue on to try a copy procedure
 640         std::unique_ptr<FILE, decltype(&fclose_safe)> fi{fopen(sl.get(), "rb"), fclose_safe};
 641         if (!fi)
 642                 {
 643                 return FALSE;
 644                 }
 645
 646         /* First we write to a temporary file, then we rename it on success,
 647            and attributes from original file are copied */
 648         std::unique_ptr<gchar, decltype(&g_free)> randname{g_strconcat(tl.get(), ".tmp_XXXXXX", NULL), g_free};
 649         if (!randname)
 650                 {
 651                 return FALSE;
 652                 }
 653
 654         fd = g_mkstemp(randname.get());
 655         if (fd == -1)
 656                 {
 657                 return FALSE;
 658                 }
 659
 660         std::unique_ptr<FILE, decltype(&fclose_safe)> fo{fdopen(fd, "wb"), fclose_safe};
 661         if (!fo) {
 662                 close(fd);
 663                 return FALSE;
 664         }
 665
 666         while ((b = fread(buf, sizeof(gchar), sizeof(buf), fi.get())) && b != 0)
 667                 {
 668                 if (fwrite(buf, sizeof(gchar), b, fo.get()) != b)
 669                         {
 670                         unlink(randname.get());
 671                         return FALSE;
 672                         }
 673                 }
 674
 675         if (rename(randname.get(), tl.get()) < 0) {
 676                 unlink(randname.get());
 677                 return FALSE;
 678         }
 679
 680         return copy_file_attributes(s, t, TRUE, TRUE);
 681 }
 682
 683 gboolean move_file(const gchar *s, const gchar *t)
 684 {
 685         gchar *sl;
 686         gchar *tl;
 687         gboolean ret = TRUE;
 688
 689         if (!s || !t) return FALSE;
 690
 691         sl = path_from_utf8(s);
 692         tl = path_from_utf8(t);
 693         if (rename(sl, tl) < 0)
 694                 {
 695                 /* this may have failed because moving a file across filesystems
 696                 was attempted, so try copy and delete instead */
 697                 if (copy_file(s, t))
 698                         {
 699                         if (unlink(sl) < 0)
 700                                 {
 701                                 /* err, now we can't delete the source file so return FALSE */
 702                                 ret = FALSE;
 703                                 }
 704                         }
 705                 else
 706                         {
 707                         ret = FALSE;
 708                         }
 709                 }
 710         g_free(sl);
 711         g_free(tl);
 712
 713         return ret;
 714 }
 715
 716 gboolean rename_file(const gchar *s, const gchar *t)
 717 {
 718         gchar *sl;
 719         gchar *tl;
 720         gboolean ret;
 721
 722         if (!s || !t) return FALSE;
 723
 724         sl = path_from_utf8(s);
 725         tl = path_from_utf8(t);
 726         ret = (rename(sl, tl) == 0);
 727         g_free(sl);
 728         g_free(tl);
 729
 730         return ret;
 731 }
 732
 733 gchar *get_current_dir()
 734 {
 735         gchar *pathl;
 736         gchar *path8;
 737
 738         pathl = g_get_current_dir();
 739         path8 = path_to_utf8(pathl);
 740         g_free(pathl);
 741
 742         return path8;
 743 }
 744
 745 void string_list_free(GList *list)
 746 {
 747         g_list_free_full(list, g_free);
 748 }
 749
 750 GList *string_list_copy(const GList *list)
 751 {
 752         GList *new_list = nullptr;
 753         auto work = const_cast<GList *>(list);
 754
 755         while (work)
 756                 {
 757                 gchar *path;
 758
 759                 path = static_cast<gchar *>(work->data);
 760                 work = work->next;
 761
 762                 new_list = g_list_prepend(new_list, g_strdup(path));
 763                 }
 764
 765         return g_list_reverse(new_list);
 766 }
 767
 768 gchar *unique_filename(const gchar *path, const gchar *ext, const gchar *divider, gboolean pad)
 769 {
 770         gchar *unique;
 771         gint n = 1;
 772
 773         if (!ext) ext = "";
 774         if (!divider) divider = "";
 775
 776         unique = g_strconcat(path, ext, NULL);
 777         while (isname(unique))
 778                 {
 779                 g_free(unique);
 780                 if (pad)
 781                         {
 782                         unique = g_strdup_printf("%s%s%03d%s", path, divider, n, ext);
 783                         }
 784                 else
 785                         {
 786                         unique = g_strdup_printf("%s%s%d%s", path, divider, n, ext);
 787                         }
 788                 n++;
 789                 if (n > 999)
 790                         {
 791                         /* well, we tried */
 792                         g_free(unique);
 793                         return nullptr;
 794                         }
 795                 }
 796
 797         return unique;
 798 }
 799
 800 #pragma GCC diagnostic push
 801 #pragma GCC diagnostic ignored "-Wunused-function"
 802 gchar *unique_filename_simple_unused(const gchar *path)
 803 {
 804         gchar *unique;
 805         const gchar *name;
 806         const gchar *ext;
 807
 808         if (!path) return nullptr;
 809
 810         name = filename_from_path(path);
 811         if (!name) return nullptr;
 812
 813         ext = registered_extension_from_path(name);
 814
 815         if (!ext)
 816                 {
 817                 unique = unique_filename(path, nullptr, "_", TRUE);
 818                 }
 819         else
 820                 {
 821                 gchar *base;
 822
 823                 base = remove_extension_from_path(path);
 824                 unique = unique_filename(base, ext, "_", TRUE);
 825                 g_free(base);
 826                 }
 827
 828         return unique;
 829 }
 830 #pragma GCC diagnostic pop
 831
 832 const gchar *filename_from_path(const gchar *path)
 833 {
 834         const gchar *base;
 835
 836         if (!path) return nullptr;
 837
 838         base = strrchr(path, G_DIR_SEPARATOR);
 839         if (base) return base + 1;
 840
 841         return path;
 842 }
 843
 844 gchar *remove_level_from_path(const gchar *path)
 845 {
 846         const gchar *base;
 847
 848         if (!path) return g_strdup("");
 849
 850         base = strrchr(path, G_DIR_SEPARATOR);
 851         /* Take account of a file being in the root ( / ) folder - ensure the returned value
 852          * is at least one character long */
 853         if (base) return g_strndup(path, (strlen(path)-strlen(base)) == 0 ? 1 : (strlen(path)-strlen(base)));
 854
 855         return g_strdup("");
 856 }
 857
 858 gboolean file_extension_match(const gchar *path, const gchar *ext)
 859 {
 860         gint p;
 861         gint e;
 862
 863         if (!path) return FALSE;
 864         if (!ext) return TRUE;
 865
 866         p = strlen(path);
 867         e = strlen(ext);
 868
 869         /** @FIXME utf8 */
 870         return (p > e && g_ascii_strncasecmp(path + p - e, ext, e) == 0);
 871 }
 872
 873 gchar *remove_extension_from_path(const gchar *path)
 874 {
 875         const gchar *reg_ext;
 876
 877         if (!path) return nullptr;
 878
 879         reg_ext = registered_extension_from_path(path);
 880
 881         return g_strndup(path, strlen(path) - (reg_ext == nullptr ? 0 : strlen(reg_ext)));
 882 }
 883
 884 void parse_out_relatives(gchar *path)
 885 {
 886         gint s;
 887         gint t;
 888
 889         if (!path) return;
 890
 891         s = t = 0;
 892
 893         while (path[s] != '\0')
 894                 {
 895                 if (path[s] == G_DIR_SEPARATOR && path[s+1] == '.')
 896                         {
 897                         /* /. occurrence, let's see more */
 898                         gint p = s + 2;
 899
 900                         if (path[p] == G_DIR_SEPARATOR || path[p] == '\0')
 901                                 {
 902                                 /* /./ or /., just skip this part */
 903                                 s = p;
 904                                 continue;
 905                                 }
 906
 907                         if (path[p] == '.' && (path[p+1] == G_DIR_SEPARATOR || path[p+1] == '\0'))
 908                                 {
 909                                 /* /../ or /.., remove previous part, ie. /a/b/../ becomes /a/ */
 910                                 s = p + 1;
 911                                 if (t > 0) t--;
 912                                 while (path[t] != G_DIR_SEPARATOR && t > 0) t--;
 913                                 continue;
 914                                 }
 915                         }
 916
 917                 if (s != t) path[t] = path[s];
 918                 t++;
 919                 s++;
 920                 }
 921
 922         if (t == 0 && path[t] == G_DIR_SEPARATOR) t++;
 923         if (t > 1 && path[t-1] == G_DIR_SEPARATOR) t--;
 924         path[t] = '\0';
 925 }
 926
 927 gboolean file_in_path(const gchar *name)
 928 {
 929         gchar *path;
 930         gchar *namel;
 931         gint p;
 932         gint l;
 933         gboolean ret = FALSE;
 934
 935         if (!name) return FALSE;
 936         path = g_strdup(getenv("PATH"));
 937         if (!path) return FALSE;
 938         namel = path_from_utf8(name);
 939
 940         p = 0;
 941         l = strlen(path);
 942         while (p < l && !ret)
 943                 {
 944                 gchar *f;
 945                 gint e = p;
 946                 while (path[e] != ':' && path[e] != '\0') e++;
 947                 path[e] = '\0';
 948                 e++;
 949                 f = g_build_filename(path + p, namel, NULL);
 950                 if (isfile(f)) ret = TRUE;
 951                 g_free(f);
 952                 p = e;
 953                 }
 954         g_free(namel);
 955         g_free(path);
 956
 957         return ret;
 958 }
 959
 960 gboolean recursive_mkdir_if_not_exists(const gchar *path, mode_t mode)
 961 {
 962         if (!path) return FALSE;
 963
 964         if (!isdir(path))
 965                 {
 966                 gchar *npath = g_strdup(path);
 967                 gchar *p = npath;
 968
 969                 while (p[0] != '\0')
 970                         {
 971                         p++;
 972                         if (p[0] == G_DIR_SEPARATOR || p[0] == '\0')
 973                                 {
 974                                 gboolean end = TRUE;
 975
 976                                 if (p[0] != '\0')
 977                                         {
 978                                         p[0] = '\0';
 979                                         end = FALSE;
 980                                         }
 981
 982                                 if (!isdir(npath))
 983                                         {
 984                                         DEBUG_1("creating sub dir:%s", npath);
 985                                         if (!mkdir_utf8(npath, mode))
 986                                                 {
 987                                                 log_printf("create dir failed: %s\n", npath);
 988                                                 g_free(npath);
 989                                                 return FALSE;
 990                                                 }
 991                                         }
 992
 993                                 if (!end) p[0] = G_DIR_SEPARATOR;
 994                                 }
 995                         }
 996                 g_free(npath);
 997                 }
 998
 999         return TRUE;
1000 }
1001
1002 /* does filename utf8 to filesystem encoding first */
1003 gboolean md5_get_digest_from_file_utf8(const gchar *path, guchar digest[16])
1004 {
1005         gboolean success;
1006         gchar *pathl;
1007
1008         pathl = path_from_utf8(path);
1009         success = md5_get_digest_from_file(pathl, digest);
1010         g_free(pathl);
1011
1012         return success;
1013 }
1014
1015
1016 gchar *md5_text_from_file_utf8(const gchar *path, const gchar *error_text)
1017 {
1018         std::unique_ptr<gchar, decltype(&g_free)> pathl{path_from_utf8(path), g_free};
1019
1020         auto md5_text = md5_get_string_from_file(pathl.get());
1021
1022         return md5_text ? md5_text : g_strdup(error_text);
1023 }
1024
1025 /* Download web file
1026  */
1027 struct WebData
1028 {
1029         GenericDialog *gd;
1030         GCancellable *cancellable;
1031         LayoutWindow *lw;
1032
1033         GtkWidget *progress;
1034         GFile *tmp_g_file;
1035         GFile *web_file;
1036 };
1037
1038 static void web_file_async_ready_cb(GObject *source_object, GAsyncResult *res, gpointer data)
1039 {
1040         GError *error = nullptr;
1041         auto web = static_cast<WebData *>(data);
1042         gchar *tmp_filename;
1043
1044         if (!g_cancellable_is_cancelled(web->cancellable))
1045                 {
1046                 generic_dialog_close(web->gd);
1047                 }
1048
1049         if (g_file_copy_finish(G_FILE(source_object), res, &error))
1050                 {
1051                 tmp_filename = g_file_get_parse_name(web->tmp_g_file);
1052                 g_free(tmp_filename);
1053                 layout_set_path(web->lw, g_file_get_path(web->tmp_g_file));
1054                 }
1055         else
1056                 {
1057                 file_util_warning_dialog(_("Web file download failed"), error->message, GQ_ICON_DIALOG_ERROR, nullptr);
1058                 }
1059
1060         g_object_unref(web->tmp_g_file);
1061         web->tmp_g_file = nullptr;
1062         g_object_unref(web->cancellable);
1063         g_object_unref(web->web_file);
1064 }
1065
1066 static void web_file_progress_cb(goffset current_num_bytes, goffset total_num_bytes, gpointer data)
1067 {
1068         auto web = static_cast<WebData *>(data);
1069
1070         if (!g_cancellable_is_cancelled(web->cancellable))
1071                 {
1072                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(web->progress), static_cast<gdouble>(current_num_bytes) / total_num_bytes);
1073                 }
1074 }
1075
1076 static void download_web_file_cancel_button_cb(GenericDialog *, gpointer data)
1077 {
1078         auto web = static_cast<WebData *>(data);
1079
1080         g_cancellable_cancel(web->cancellable);
1081 }
1082
1083 gboolean download_web_file(const gchar *text, gboolean minimized, gpointer data)
1084 {
1085         gchar *scheme;
1086         auto lw = static_cast<LayoutWindow *>(data);
1087         gchar *tmp_dir;
1088         GError *error = nullptr;
1089         WebData *web;
1090         gchar *base;
1091         gboolean ret = FALSE;
1092         gchar *message;
1093         FileFormatClass format_class;
1094
1095         scheme = g_uri_parse_scheme(text);
1096         if (g_strcmp0("http", scheme) == 0 || g_strcmp0("https", scheme) == 0)
1097                 {
1098                 format_class = filter_file_get_class(text);
1099
1100                 if (format_class == FORMAT_CLASS_IMAGE || format_class == FORMAT_CLASS_RAWIMAGE || format_class == FORMAT_CLASS_VIDEO || format_class == FORMAT_CLASS_DOCUMENT)
1101                         {
1102                         tmp_dir = g_dir_make_tmp("geeqie_XXXXXX", &error);
1103                         if (error)
1104                                 {
1105                                 log_printf("Error: could not create temporary file n%s\n", error->message);
1106                                 g_error_free(error);
1107                                 error = nullptr;
1108                                 ret = TRUE;
1109                                 }
1110                         else
1111                                 {
1112                                 web = g_new0(WebData, 1);
1113                                 web->lw = lw;
1114
1115                                 web->web_file = g_file_new_for_uri(text);
1116
1117                                 base = g_strdup(g_file_get_basename(web->web_file));
1118                                 web->tmp_g_file = g_file_new_for_path(g_build_filename(tmp_dir, base, NULL));
1119
1120                                 web->gd = generic_dialog_new(_("Download web file"), "download_web_file", nullptr, TRUE, download_web_file_cancel_button_cb, web);
1121
1122                                 message = g_strconcat(_("Downloading "), base, NULL);
1123                                 generic_dialog_add_message(web->gd, GQ_ICON_DIALOG_INFO, message, nullptr, FALSE);
1124
1125                                 web->progress = gtk_progress_bar_new();
1126                                 gq_gtk_box_pack_start(GTK_BOX(web->gd->vbox), web->progress, FALSE, FALSE, 0);
1127                                 gtk_widget_show(web->progress);
1128                                 if (minimized)
1129                                         {
1130                                         gtk_window_iconify(GTK_WINDOW(web->gd->dialog));
1131                                         }
1132
1133                                 gtk_widget_show(web->gd->dialog);
1134                                 web->cancellable = g_cancellable_new();
1135                                 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);
1136
1137                                 g_free(base);
1138                                 g_free(message);
1139                                 ret = TRUE;
1140                                 }
1141                         }
1142                 }
1143         else
1144                 {
1145                 ret = FALSE;
1146                 }
1147
1148         g_free(scheme);
1149         return ret;
1150
1151 }
1152
1153 gboolean rmdir_recursive(GFile *file, GCancellable *cancellable, GError **error)
1154 {
1155         g_autoptr(GFileEnumerator) enumerator = nullptr;
1156
1157         enumerator = g_file_enumerate_children(file, G_FILE_ATTRIBUTE_STANDARD_NAME, G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS, cancellable, nullptr);
1158
1159         while (enumerator != nullptr)
1160                 {
1161                  GFile *child;
1162
1163                 if (!g_file_enumerator_iterate(enumerator, nullptr, &child, cancellable, error))
1164                         return FALSE;
1165                 if (child == nullptr)
1166                         break;
1167                 if (!rmdir_recursive(child, cancellable, error))
1168                         return FALSE;
1169                 }
1170
1171         return g_file_delete(file, cancellable, error);
1172 }
1173
1174 /**
1175  * @brief Retrieves the internal scale factor that maps from window coordinates to the actual device pixels
1176  * @param  -
1177  * @returns scale factor
1178  *
1179  *
1180  */
1181 gint scale_factor()
1182 {
1183         LayoutWindow *lw = nullptr;
1184
1185         layout_valid(&lw);
1186         return gtk_widget_get_scale_factor(lw->window);
1187 }
1188 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */