src/ui_fileops.c

   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 <config.h>
  23
  24 #include <pwd.h>
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <unistd.h>
  29 #include <sys/param.h>
  30 #include <dirent.h>
  31 #include <utime.h>
  32
  33 #include <glib.h>
  34 #include <gtk/gtk.h>    /* for locale warning dialog */
  35
  36 #include "main.h"
  37 #include "ui_fileops.h"
  38
  39 #include "ui_utildlg.h" /* for locale warning dialog */
  40 #include "md5-util.h"
  41
  42 #include "filefilter.h"
  43 #include "layout.h"
  44 #include "utilops.h"
  45 #include "secure_save.h"
  46
  47 /*
  48  *-----------------------------------------------------------------------------
  49  * generic file information and manipulation routines (public)
  50  *-----------------------------------------------------------------------------
  51  */
  52
  53
  54
  55 void print_term(gboolean err, const gchar *text_utf8)
  56 {
  57         gchar *text_l;
  58
  59         text_l = g_locale_from_utf8(text_utf8, -1, NULL, NULL, NULL);
  60         if (err)
  61                 {
  62                 fputs((text_l) ? text_l : text_utf8, stderr);
  63                 }
  64         else
  65                 {
  66                 fputs((text_l) ? text_l : text_utf8, stdout);
  67                 }
  68         if(command_line && command_line->ssi)
  69                 secure_fputs(command_line->ssi, (text_l) ? text_l : text_utf8);
  70         g_free(text_l);
  71 }
  72
  73 static void encoding_dialog(const gchar *path)
  74 {
  75         static gboolean warned_user = FALSE;
  76         GenericDialog *gd;
  77         GString *string;
  78         const gchar *lc;
  79         const gchar *bf;
  80
  81         if (warned_user) return;
  82         warned_user = TRUE;
  83
  84         lc = getenv("LANG");
  85         bf = getenv("G_BROKEN_FILENAMES");
  86
  87         string = g_string_new("");
  88         g_string_append(string, _("One or more filenames are not encoded with the preferred locale character set.\n"));
  89         g_string_append_printf(string, _("Operations on, and display of these files with %s may not succeed.\n"), PACKAGE);
  90         g_string_append(string, "\n");
  91         g_string_append(string, _("If your filenames are not encoded in utf-8, try setting the environment variable G_BROKEN_FILENAMES=1\n"));
  92         if (bf)
  93                 g_string_append_printf(string, _("It appears G_BROKEN_FILENAMES is set to %s\n"), bf);
  94         else
  95                 g_string_append(string, _("It appears G_BROKEN_FILENAMES is not set\n"));
  96         g_string_append(string, "\n");
  97         g_string_append_printf(string, _("The locale appears to be set to \"%s\"\n(set by the LANG environment variable)\n"), (lc) ? lc : "undefined");
  98         if (lc && (strstr(lc, "UTF-8") || strstr(lc, "utf-8")))
  99                 {
 100                 gchar *name;
 101                 name = g_convert(path, -1, "UTF-8", "ISO-8859-1", NULL, NULL, NULL);
 102                 string = g_string_append(string, _("\nPreferred encoding appears to be UTF-8, however the file:\n"));
 103                 g_string_append_printf(string, "\"%s\"\n", (name) ? name : _("[name not displayable]"));
 104
 105                 if (g_utf8_validate(path, -1, NULL))
 106                         g_string_append_printf(string, _("\"%s\" is encoded in valid UTF-8."), (name) ? name : _("[name not displayable]"));
 107                 else
 108                         g_string_append_printf(string, _("\"%s\" is not encoded in valid UTF-8."), (name) ? name : _("[name not displayable]"));
 109                 g_string_append(string, "\n");
 110                 g_free(name);
 111                 }
 112
 113         gd = generic_dialog_new(_("Filename encoding locale mismatch"),
 114                                 "locale warning", NULL, TRUE, NULL, NULL);
 115         generic_dialog_add_button(gd, GTK_STOCK_CLOSE, NULL, NULL, TRUE);
 116
 117         generic_dialog_add_message(gd, GTK_STOCK_DIALOG_WARNING,
 118                                    _("Filename encoding locale mismatch"), string->str, TRUE);
 119
 120         gtk_widget_show(gd->dialog);
 121
 122         g_string_free(string, TRUE);
 123 }
 124
 125 #if GQ_DEBUG_PATH_UTF8
 126 gchar *path_to_utf8_debug(const gchar *path, const gchar *file, gint line)
 127 #else
 128 gchar *path_to_utf8(const gchar *path)
 129 #endif
 130 {
 131         gchar *utf8;
 132         GError *error = NULL;
 133
 134         if (!path) return NULL;
 135
 136         utf8 = g_filename_to_utf8(path, -1, NULL, NULL, &error);
 137         if (error)
 138                 {
 139 #if GQ_DEBUG_PATH_UTF8
 140                 log_printf("%s:%d: Unable to convert filename to UTF-8:\n%s\n%s\n", file, line, path, error->message);
 141 #else
 142                 log_printf("Unable to convert filename to UTF-8:\n%s\n%s\n", path, error->message);
 143 #endif
 144                 g_error_free(error);
 145                 encoding_dialog(path);
 146                 }
 147         if (!utf8)
 148                 {
 149                 /* just let it through, but bad things may happen */
 150                 utf8 = g_strdup(path);
 151                 }
 152
 153         return utf8;
 154 }
 155
 156 #if GQ_DEBUG_PATH_UTF8
 157 gchar *path_from_utf8_debug(const gchar *utf8, const gchar *file, gint line)
 158 #else
 159 gchar *path_from_utf8(const gchar *utf8)
 160 #endif
 161 {
 162         gchar *path;
 163         GError *error = NULL;
 164
 165         if (!utf8) return NULL;
 166
 167         path = g_filename_from_utf8(utf8, -1, NULL, NULL, &error);
 168         if (error)
 169                 {
 170 #if GQ_DEBUG_PATH_UTF8
 171                 log_printf("%s:%d: Unable to convert filename to locale from UTF-8:\n%s\n%s\n", file, line, utf8, error->message);
 172 #else
 173                 log_printf("Unable to convert filename to locale from UTF-8:\n%s\n%s\n", utf8, error->message);
 174 #endif
 175                 g_error_free(error);
 176                 }
 177         if (!path)
 178                 {
 179                 /* if invalid UTF-8, text probably still in original form, so just copy it */
 180                 path = g_strdup(utf8);
 181                 }
 182
 183         return path;
 184 }
 185
 186 /* first we try the HOME environment var, if that doesn't work, we try g_get_homedir(). */
 187 const gchar *homedir(void)
 188 {
 189         static gchar *home = NULL;
 190
 191         if (!home)
 192                 home = path_to_utf8(getenv("HOME"));
 193
 194         if (!home)
 195                 home = path_to_utf8(g_get_home_dir());
 196
 197         DEBUG_1("Home directory: %s", home);
 198
 199         return home;
 200 }
 201
 202 static gchar *xdg_dir_get(const gchar *key, const gchar *fallback)
 203 {
 204         gchar *dir = getenv(key);
 205
 206         if (!dir || dir[0] == '\0')
 207                 {
 208                 return g_build_filename(homedir(), fallback, NULL);
 209                 }
 210
 211         DEBUG_1("Got xdg %s: %s", key, dir);
 212
 213         return path_to_utf8(dir);
 214 }
 215
 216 const gchar *xdg_data_home_get(void)
 217 {
 218         static const gchar *xdg_data_home = NULL;
 219
 220         if (xdg_data_home) return xdg_data_home;
 221
 222         xdg_data_home = xdg_dir_get("XDG_DATA_HOME", ".local/share");
 223
 224         return xdg_data_home;
 225 }
 226
 227 const gchar *xdg_config_home_get(void)
 228 {
 229         static const gchar *xdg_config_home = NULL;
 230
 231         if (xdg_config_home) return xdg_config_home;
 232
 233         xdg_config_home = xdg_dir_get("XDG_CONFIG_HOME", ".config");
 234
 235         return xdg_config_home;
 236 }
 237
 238 const gchar *xdg_cache_home_get(void)
 239 {
 240         static const gchar *xdg_cache_home = NULL;
 241
 242         if (xdg_cache_home) return xdg_cache_home;
 243
 244         xdg_cache_home = xdg_dir_get("XDG_CACHE_HOME", ".cache");
 245
 246         return xdg_cache_home;
 247 }
 248
 249 const gchar *get_rc_dir(void)
 250 {
 251         static gchar *rc_dir = NULL;
 252
 253         if (rc_dir) return rc_dir;
 254
 255         if (USE_XDG)
 256                 {
 257                 rc_dir = g_build_filename(xdg_config_home_get(), GQ_APPNAME_LC, NULL);
 258                 }
 259         else
 260                 {
 261                 rc_dir = g_build_filename(homedir(), GQ_RC_DIR, NULL);
 262                 }
 263
 264         return rc_dir;
 265 }
 266
 267 const gchar *get_collections_dir(void)
 268 {
 269         static gchar *collections_dir = NULL;
 270
 271         if (collections_dir) return collections_dir;
 272
 273         if (USE_XDG)
 274                 {
 275                 collections_dir = g_build_filename(xdg_data_home_get(), GQ_APPNAME_LC, GQ_COLLECTIONS_DIR, NULL);
 276                 }
 277         else
 278                 {
 279                 collections_dir = g_build_filename(get_rc_dir(), GQ_COLLECTIONS_DIR, NULL);
 280                 }
 281
 282         return collections_dir;
 283 }
 284
 285 const gchar *get_trash_dir(void)
 286 {
 287         static gchar *trash_dir = NULL;
 288
 289         if (trash_dir) return trash_dir;
 290
 291         if (USE_XDG)
 292                 {
 293                 trash_dir = g_build_filename(xdg_data_home_get(), GQ_APPNAME_LC, GQ_TRASH_DIR, NULL);
 294                 }
 295         else
 296                 {
 297                 trash_dir = g_build_filename(get_rc_dir(), GQ_TRASH_DIR, NULL);
 298         }
 299
 300         return trash_dir;
 301 }
 302
 303 const gchar *get_window_layouts_dir(void)
 304 {
 305         static gchar *window_layouts_dir = NULL;
 306
 307         if (window_layouts_dir) return window_layouts_dir;
 308
 309         if (USE_XDG)
 310                 {
 311                 window_layouts_dir = g_build_filename(xdg_config_home_get(), GQ_APPNAME_LC, GQ_WINDOW_LAYOUTS_DIR, NULL);
 312                 }
 313         else
 314                 {
 315                 window_layouts_dir = g_build_filename(get_rc_dir(), GQ_WINDOW_LAYOUTS_DIR, NULL);
 316                 }
 317
 318         return window_layouts_dir;
 319 }
 320
 321 gboolean stat_utf8(const gchar *s, struct stat *st)
 322 {
 323         gchar *sl;
 324         gboolean ret;
 325
 326         if (!s) return FALSE;
 327         sl = path_from_utf8(s);
 328         ret = (stat(sl, st) == 0);
 329         g_free(sl);
 330
 331         return ret;
 332 }
 333
 334 gboolean lstat_utf8(const gchar *s, struct stat *st)
 335 {
 336         gchar *sl;
 337         gboolean ret;
 338
 339         if (!s) return FALSE;
 340         sl = path_from_utf8(s);
 341         ret = (lstat(sl, st) == 0);
 342         g_free(sl);
 343
 344         return ret;
 345 }
 346
 347 gboolean isname(const gchar *s)
 348 {
 349         struct stat st;
 350
 351         return stat_utf8(s, &st);
 352 }
 353
 354 gboolean isfile(const gchar *s)
 355 {
 356         struct stat st;
 357
 358         return (stat_utf8(s, &st) && S_ISREG(st.st_mode));
 359 }
 360
 361 gboolean isdir(const gchar *s)
 362 {
 363         struct stat st;
 364
 365         return (stat_utf8(s, &st) && S_ISDIR(st.st_mode));
 366 }
 367
 368 gboolean islink(const gchar *s)
 369 {
 370         struct stat st;
 371
 372         return (lstat_utf8(s, &st) && S_ISLNK(st.st_mode));
 373 }
 374
 375 gint64 filesize(const gchar *s)
 376 {
 377         struct stat st;
 378
 379         if (!stat_utf8(s, &st)) return 0;
 380         return st.st_size;
 381 }
 382
 383 time_t filetime(const gchar *s)
 384 {
 385         struct stat st;
 386
 387         if (!stat_utf8(s, &st)) return 0;
 388         return st.st_mtime;
 389 }
 390
 391 gboolean filetime_set(const gchar *s, time_t tval)
 392 {
 393         gboolean ret = FALSE;
 394
 395         if (tval > 0)
 396                 {
 397                 struct utimbuf ut;
 398                 gchar *sl;
 399
 400                 ut.actime = ut.modtime = tval;
 401
 402                 sl = path_from_utf8(s);
 403                 ret = (utime(sl, &ut) == 0);
 404                 g_free(sl);
 405                 }
 406
 407         return ret;
 408 }
 409
 410 gboolean is_readable_file(const gchar *s)
 411 {
 412         if (!s || !s[0] || !isfile(s)) return FALSE;
 413         return access_file(s, R_OK);
 414 }
 415
 416 gboolean access_file(const gchar *s, gint mode)
 417 {
 418         gchar *sl;
 419         gint ret;
 420
 421         if (!s || !s[0]) return FALSE;
 422
 423         sl = path_from_utf8(s);
 424         ret = (access(sl, mode) == 0);
 425         g_free(sl);
 426
 427         return ret;
 428 }
 429
 430 gboolean unlink_file(const gchar *s)
 431 {
 432         gchar *sl;
 433         gboolean ret;
 434
 435         if (!s) return FALSE;
 436
 437         sl = path_from_utf8(s);
 438         ret = (unlink(sl) == 0);
 439         g_free(sl);
 440
 441         return ret;
 442 }
 443
 444 gboolean symlink_utf8(const gchar *source, const gchar *target)
 445 {
 446         gchar *sl;
 447         gchar *tl;
 448         gboolean ret;
 449
 450         if (!source || !target) return FALSE;
 451
 452         sl = path_from_utf8(source);
 453         tl = path_from_utf8(target);
 454
 455         ret = (symlink(sl, tl) == 0);
 456
 457         g_free(sl);
 458         g_free(tl);
 459
 460         return ret;
 461 }
 462
 463 gboolean mkdir_utf8(const gchar *s, gint mode)
 464 {
 465         gchar *sl;
 466         gboolean ret;
 467
 468         if (!s) return FALSE;
 469
 470         sl = path_from_utf8(s);
 471         ret = (mkdir(sl, mode) == 0);
 472         g_free(sl);
 473         return ret;
 474 }
 475
 476 gboolean rmdir_utf8(const gchar *s)
 477 {
 478         gchar *sl;
 479         gboolean ret;
 480
 481         if (!s) return FALSE;
 482
 483         sl = path_from_utf8(s);
 484         ret = (rmdir(sl) == 0);
 485         g_free(sl);
 486
 487         return ret;
 488 }
 489
 490 gboolean copy_file_attributes(const gchar *s, const gchar *t, gint perms, gint mtime)
 491 {
 492         struct stat st;
 493         gchar *sl, *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 gboolean copy_file(const gchar *s, const gchar *t)
 547 {
 548         FILE *fi = NULL;
 549         FILE *fo = NULL;
 550         gchar *sl = NULL;
 551         gchar *tl = NULL;
 552         gchar *randname = NULL;
 553         gchar buf[16384];
 554         size_t b;
 555         gint ret = FALSE;
 556         gint fd = -1;
 557
 558         sl = path_from_utf8(s);
 559         tl = path_from_utf8(t);
 560
 561         if (hard_linked(sl, tl))
 562                 {
 563                 ret = TRUE;
 564                 goto end;
 565                 }
 566
 567         /* Do not dereference absolute symlinks, but copy them "as is".
 568         * For a relative symlink, we don't know how to properly change it when
 569         * copied/moved to another dir to keep pointing it to same target as
 570         * a relative symlink, so we turn it into absolute symlink using
 571         * realpath() instead. */
 572         struct stat st;
 573         if (lstat_utf8(sl, &st) && S_ISLNK(st.st_mode))
 574                 {
 575                 gchar *link_target;
 576                 ssize_t i;
 577
 578                 link_target = g_malloc(st.st_size + 1);
 579                 i = readlink(sl, link_target, st.st_size);
 580                 if (i<0)
 581                         {
 582                         g_free(link_target);
 583                         goto orig_copy;  // try a "normal" copy
 584                         }
 585                 link_target[st.st_size] = '\0';
 586
 587                 if (link_target[0] != G_DIR_SEPARATOR) // if it is a relative symlink
 588                         {
 589                         gchar *absolute;
 590
 591                         gchar *lastslash = strrchr(sl, G_DIR_SEPARATOR);
 592                         gint len = lastslash - sl + 1;
 593
 594                         absolute = g_malloc(len + st.st_size + 1);
 595                         strncpy(absolute, sl, len);
 596                         strcpy(absolute + len, link_target);
 597                         g_free(link_target);
 598                         link_target = absolute;
 599
 600                         gchar *realPath;
 601                         realPath = realpath(link_target, NULL);
 602
 603                         if (realPath != NULL) // successfully resolved into an absolute path
 604                                 {
 605                                 g_free(link_target);
 606                                 link_target = g_strdup(realPath);
 607                                 g_free(realPath);
 608                                 }
 609                         else                 // could not get absolute path, got some error instead
 610                                 {
 611                                 g_free(link_target);
 612                                 goto orig_copy;  // so try a "normal" copy
 613                                 }
 614                         }
 615
 616                 if (stat_utf8(tl, &st)) unlink(tl); // first try to remove directory entry in destination directory if such entry exists
 617
 618                 gint success = (symlink(link_target, tl) == 0);
 619                 g_free(link_target);
 620
 621                 if (success)
 622                         {
 623                         ret = TRUE;
 624                         goto end;
 625                         }
 626                 } // if symlink did not succeed, continue on to try a copy procedure
 627         orig_copy:
 628
 629         fi = fopen(sl, "rb");
 630         if (!fi) goto end;
 631
 632         /* First we write to a temporary file, then we rename it on success,
 633            and attributes from original file are copied */
 634         randname = g_strconcat(tl, ".tmp_XXXXXX", NULL);
 635         if (!randname) goto end;
 636
 637         fd = g_mkstemp(randname);
 638         if (fd == -1) goto end;
 639
 640         fo = fdopen(fd, "wb");
 641         if (!fo) {
 642                 close(fd);
 643                 goto end;
 644         }
 645
 646         while ((b = fread(buf, sizeof(gchar), sizeof(buf), fi)) && b != 0)
 647                 {
 648                 if (fwrite(buf, sizeof(gchar), b, fo) != b)
 649                         {
 650                         unlink(randname);
 651                         goto end;
 652                         }
 653                 }
 654
 655         fclose(fi); fi = NULL;
 656         fclose(fo); fo = NULL;
 657
 658         if (rename(randname, tl) < 0) {
 659                 unlink(randname);
 660                 goto end;
 661         }
 662
 663         ret = copy_file_attributes(s, t, TRUE, TRUE);
 664
 665 end:
 666         if (fi) fclose(fi);
 667         if (fo) fclose(fo);
 668         if (sl) g_free(sl);
 669         if (tl) g_free(tl);
 670         if (randname) g_free(randname);
 671         return ret;
 672 }
 673
 674 gboolean move_file(const gchar *s, const gchar *t)
 675 {
 676         gchar *sl, *tl;
 677         gboolean ret = TRUE;
 678
 679         if (!s || !t) return FALSE;
 680
 681         sl = path_from_utf8(s);
 682         tl = path_from_utf8(t);
 683         if (rename(sl, tl) < 0)
 684                 {
 685                 /* this may have failed because moving a file across filesystems
 686                 was attempted, so try copy and delete instead */
 687                 if (copy_file(s, t))
 688                         {
 689                         if (unlink(sl) < 0)
 690                                 {
 691                                 /* err, now we can't delete the source file so return FALSE */
 692                                 ret = FALSE;
 693                                 }
 694                         }
 695                 else
 696                         {
 697                         ret = FALSE;
 698                         }
 699                 }
 700         g_free(sl);
 701         g_free(tl);
 702
 703         return ret;
 704 }
 705
 706 gboolean rename_file(const gchar *s, const gchar *t)
 707 {
 708         gchar *sl, *tl;
 709         gboolean ret;
 710
 711         if (!s || !t) return FALSE;
 712
 713         sl = path_from_utf8(s);
 714         tl = path_from_utf8(t);
 715         ret = (rename(sl, tl) == 0);
 716         g_free(sl);
 717         g_free(tl);
 718
 719         return ret;
 720 }
 721
 722 gchar *get_current_dir(void)
 723 {
 724         gchar *pathl;
 725         gchar *path8;
 726
 727         pathl = g_get_current_dir();
 728         path8 = path_to_utf8(pathl);
 729         g_free(pathl);
 730
 731         return path8;
 732 }
 733
 734 void list_free_wrapper(void *data, void *userdata)
 735 {
 736         g_free(data);
 737 }
 738
 739 void string_list_free(GList *list)
 740 {
 741         g_list_foreach(list, (GFunc)list_free_wrapper, NULL);
 742         g_list_free(list);
 743 }
 744
 745 GList *string_list_copy(const GList *list)
 746 {
 747         GList *new_list = NULL;
 748         GList *work = (GList *) list;
 749
 750         while (work)
 751                 {
 752                 gchar *path;
 753
 754                 path = work->data;
 755                 work = work->next;
 756
 757                 new_list = g_list_prepend(new_list, g_strdup(path));
 758                 }
 759
 760         return g_list_reverse(new_list);
 761 }
 762
 763 gchar *unique_filename(const gchar *path, const gchar *ext, const gchar *divider, gboolean pad)
 764 {
 765         gchar *unique;
 766         gint n = 1;
 767
 768         if (!ext) ext = "";
 769         if (!divider) divider = "";
 770
 771         unique = g_strconcat(path, ext, NULL);
 772         while (isname(unique))
 773                 {
 774                 g_free(unique);
 775                 if (pad)
 776                         {
 777                         unique = g_strdup_printf("%s%s%03d%s", path, divider, n, ext);
 778                         }
 779                 else
 780                         {
 781                         unique = g_strdup_printf("%s%s%d%s", path, divider, n, ext);
 782                         }
 783                 n++;
 784                 if (n > 999)
 785                         {
 786                         /* well, we tried */
 787                         g_free(unique);
 788                         return NULL;
 789                         }
 790                 }
 791
 792         return unique;
 793 }
 794
 795 gchar *unique_filename_simple(const gchar *path)
 796 {
 797         gchar *unique;
 798         const gchar *name;
 799         const gchar *ext;
 800
 801         if (!path) return NULL;
 802
 803         name = filename_from_path(path);
 804         if (!name) return NULL;
 805
 806         ext = registered_extension_from_path(name);
 807
 808         if (!ext)
 809                 {
 810                 unique = unique_filename(path, NULL, "_", 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
 824 const gchar *filename_from_path(const gchar *path)
 825 {
 826         const gchar *base;
 827
 828         if (!path) return NULL;
 829
 830         base = strrchr(path, G_DIR_SEPARATOR);
 831         if (base) return base + 1;
 832
 833         return path;
 834 }
 835
 836 gchar *remove_level_from_path(const gchar *path)
 837 {
 838         const gchar *base;
 839
 840         if (!path) return g_strdup("");
 841
 842         base = strrchr(path, G_DIR_SEPARATOR);
 843         /* Take account of a file being in the root ( / ) folder - ensure the returned value
 844          * is at least one character long */
 845         if (base) return g_strndup(path, (strlen(path)-strlen(base)) == 0 ? 1 : (strlen(path)-strlen(base)));
 846
 847         return g_strdup("");
 848 }
 849
 850 gboolean file_extension_match(const gchar *path, const gchar *ext)
 851 {
 852         gint p;
 853         gint e;
 854
 855         if (!path) return FALSE;
 856         if (!ext) return TRUE;
 857
 858         p = strlen(path);
 859         e = strlen(ext);
 860
 861         /** @FIXME utf8 */
 862         return (p > e && g_ascii_strncasecmp(path + p - e, ext, e) == 0);
 863 }
 864
 865 gchar *remove_extension_from_path(const gchar *path)
 866 {
 867         const gchar *reg_ext;
 868
 869         if (!path) return NULL;
 870
 871         reg_ext = registered_extension_from_path(path);
 872
 873         return g_strndup(path, strlen(path) - (reg_ext == NULL ? 0 : strlen(reg_ext)));
 874 }
 875
 876 void parse_out_relatives(gchar *path)
 877 {
 878         gint s, t;
 879
 880         if (!path) return;
 881
 882         s = t = 0;
 883
 884         while (path[s] != '\0')
 885                 {
 886                 if (path[s] == G_DIR_SEPARATOR && path[s+1] == '.')
 887                         {
 888                         /* /. occurrence, let's see more */
 889                         gint p = s + 2;
 890
 891                         if (path[p] == G_DIR_SEPARATOR || path[p] == '\0')
 892                                 {
 893                                 /* /./ or /., just skip this part */
 894                                 s = p;
 895                                 continue;
 896                                 }
 897                         else if (path[p] == '.' && (path[p+1] == G_DIR_SEPARATOR || path[p+1] == '\0'))
 898                                 {
 899                                 /* /../ or /.., remove previous part, ie. /a/b/../ becomes /a/ */
 900                                 s = p + 1;
 901                                 if (t > 0) t--;
 902                                 while (path[t] != G_DIR_SEPARATOR && t > 0) t--;
 903                                 continue;
 904                                 }
 905                         }
 906
 907                 if (s != t) path[t] = path[s];
 908                 t++;
 909                 s++;
 910                 }
 911
 912         if (t == 0 && path[t] == G_DIR_SEPARATOR) t++;
 913         if (t > 1 && path[t-1] == G_DIR_SEPARATOR) t--;
 914         path[t] = '\0';
 915 }
 916
 917 gboolean file_in_path(const gchar *name)
 918 {
 919         gchar *path;
 920         gchar *namel;
 921         gint p, l;
 922         gboolean ret = FALSE;
 923
 924         if (!name) return FALSE;
 925         path = g_strdup(getenv("PATH"));
 926         if (!path) return FALSE;
 927         namel = path_from_utf8(name);
 928
 929         p = 0;
 930         l = strlen(path);
 931         while (p < l && !ret)
 932                 {
 933                 gchar *f;
 934                 gint e = p;
 935                 while (path[e] != ':' && path[e] != '\0') e++;
 936                 path[e] = '\0';
 937                 e++;
 938                 f = g_build_filename(path + p, namel, NULL);
 939                 if (isfile(f)) ret = TRUE;
 940                 g_free(f);
 941                 p = e;
 942                 }
 943         g_free(namel);
 944         g_free(path);
 945
 946         return ret;
 947 }
 948
 949 gboolean recursive_mkdir_if_not_exists(const gchar *path, mode_t mode)
 950 {
 951         if (!path) return FALSE;
 952
 953         if (!isdir(path))
 954                 {
 955                 gchar *npath = g_strdup(path);
 956                 gchar *p = npath;
 957
 958                 while (p[0] != '\0')
 959                         {
 960                         p++;
 961                         if (p[0] == G_DIR_SEPARATOR || p[0] == '\0')
 962                                 {
 963                                 gboolean end = TRUE;
 964
 965                                 if (p[0] != '\0')
 966                                         {
 967                                         p[0] = '\0';
 968                                         end = FALSE;
 969                                         }
 970
 971                                 if (!isdir(npath))
 972                                         {
 973                                         DEBUG_1("creating sub dir:%s", npath);
 974                                         if (!mkdir_utf8(npath, mode))
 975                                                 {
 976                                                 log_printf("create dir failed: %s\n", npath);
 977                                                 g_free(npath);
 978                                                 return FALSE;
 979                                                 }
 980                                         }
 981
 982                                 if (!end) p[0] = G_DIR_SEPARATOR;
 983                                 }
 984                         }
 985                 g_free(npath);
 986                 }
 987
 988         return TRUE;
 989 }
 990
 991 /* does filename utf8 to filesystem encoding first */
 992 gboolean md5_get_digest_from_file_utf8(const gchar *path, guchar digest[16])
 993 {
 994         gboolean success;
 995         gchar *pathl;
 996
 997         pathl = path_from_utf8(path);
 998         success = md5_get_digest_from_file(pathl, digest);
 999         g_free(pathl);
1000
1001         return success;
1002 }
1003
1004
1005 gchar *md5_text_from_file_utf8(const gchar *path, const gchar *error_text)
1006 {
1007         guchar digest[16];
1008
1009         if (!md5_get_digest_from_file_utf8(path, digest)) return g_strdup(error_text);
1010
1011         return md5_digest_to_text(digest);
1012 }
1013
1014 /* Download web file
1015  */
1016 typedef struct _WebData WebData;
1017 struct _WebData
1018 {
1019         GenericDialog *gd;
1020         GCancellable *cancellable;
1021         LayoutWindow *lw;
1022
1023         GtkWidget *progress;
1024         GFile *tmp_g_file;
1025         GFile *web_file;
1026 };
1027
1028 static void web_file_async_ready_cb(GObject *source_object, GAsyncResult *res, gpointer data)
1029 {
1030         GError *error = NULL;
1031         WebData* web = data;
1032         gchar *tmp_filename;
1033
1034         if (!g_cancellable_is_cancelled(web->cancellable))
1035                 {
1036                 generic_dialog_close(web->gd);
1037                 }
1038
1039         if (g_file_copy_finish(G_FILE(source_object), res, &error))
1040                 {
1041                 tmp_filename = g_file_get_parse_name(web->tmp_g_file);
1042                 g_free(tmp_filename);
1043                 layout_set_path(web->lw, g_file_get_path(web->tmp_g_file));
1044                 }
1045         else
1046                 {
1047                 file_util_warning_dialog(_("Web file download failed"), error->message, GTK_STOCK_DIALOG_ERROR, NULL);
1048                 }
1049
1050         g_object_unref(web->tmp_g_file);
1051         web->tmp_g_file = NULL;
1052         g_object_unref(web->cancellable);
1053         g_object_unref(web->web_file);
1054 }
1055
1056 static void web_file_progress_cb(goffset current_num_bytes, goffset total_num_bytes, gpointer data)
1057 {
1058         WebData* web = data;
1059
1060         if (!g_cancellable_is_cancelled(web->cancellable))
1061                 {
1062                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(web->progress), (gdouble)current_num_bytes / total_num_bytes);
1063                 }
1064 }
1065
1066 static void download_web_file_cancel_button_cb(GenericDialog *gd, gpointer data)
1067 {
1068         WebData* web = data;
1069
1070         g_cancellable_cancel(web->cancellable);
1071 }
1072
1073 gboolean download_web_file(const gchar *text, gboolean minimized, gpointer data)
1074 {
1075         gchar *scheme;
1076         LayoutWindow *lw = data;
1077         gchar *tmp_dir;
1078         GError *error = NULL;
1079         WebData *web;
1080         gchar *base;
1081         gboolean ret;
1082         gchar *message;
1083         FileFormatClass format_class;
1084
1085         scheme = g_uri_parse_scheme(text);
1086         if (g_strcmp0("http", scheme) == 0 || g_strcmp0("https", scheme) == 0)
1087                 {
1088                 format_class = filter_file_get_class(text);
1089
1090                 if (format_class == FORMAT_CLASS_IMAGE || format_class == FORMAT_CLASS_RAWIMAGE || format_class == FORMAT_CLASS_VIDEO || format_class == FORMAT_CLASS_DOCUMENT)
1091                         {
1092                         tmp_dir = g_dir_make_tmp("geeqie_XXXXXX", &error);
1093                         if (error)
1094                                 {
1095                                 log_printf("Error: could not create temporary file n%s\n", error->message);
1096                                 g_error_free(error);
1097                                 error = NULL;
1098                                 ret = TRUE;
1099                                 }
1100                         else
1101                                 {
1102                                 web = g_new0(WebData, 1);
1103                                 web->lw = lw;
1104
1105                                 web->web_file = g_file_new_for_uri(text);
1106
1107                                 base = g_strdup(g_file_get_basename(web->web_file));
1108                                 web->tmp_g_file = g_file_new_for_path(g_build_filename(tmp_dir, base, NULL));
1109
1110                                 web->gd = generic_dialog_new(_("Download web file"), "download_web_file", NULL, TRUE, download_web_file_cancel_button_cb, web);
1111
1112                                 message = g_strconcat(_("Downloading "), base, NULL);
1113                                 generic_dialog_add_message(web->gd, GTK_STOCK_DIALOG_INFO, message, NULL, FALSE);
1114
1115                                 web->progress = gtk_progress_bar_new();
1116                                 gtk_box_pack_start(GTK_BOX(web->gd->vbox), web->progress, FALSE, FALSE, 0);
1117                                 gtk_widget_show(web->progress);
1118                                 if (minimized)
1119                                         {
1120                                         gtk_window_iconify(GTK_WINDOW(web->gd->dialog));
1121                                         }
1122
1123                                 gtk_widget_show(web->gd->dialog);
1124                                 web->cancellable = g_cancellable_new();
1125                                 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);
1126
1127                                 g_free(base);
1128                                 g_free(message);
1129                                 ret = TRUE;
1130                                 }
1131                         }
1132                 }
1133         else
1134                 {
1135                 ret = FALSE;
1136                 }
1137
1138         g_free(scheme);
1139         return ret;
1140
1141 }
1142
1143 gboolean rmdir_recursive(GFile *file, GCancellable *cancellable, GError **error)
1144 {
1145         g_autoptr(GFileEnumerator) enumerator = NULL;
1146
1147         enumerator = g_file_enumerate_children(file, G_FILE_ATTRIBUTE_STANDARD_NAME, G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS, cancellable, NULL);
1148
1149         while (enumerator != NULL)
1150                 {
1151                  GFile *child;
1152
1153                 if (!g_file_enumerator_iterate(enumerator, NULL, &child, cancellable, error))
1154                         return FALSE;
1155                 if (child == NULL)
1156                         break;
1157                 if (!rmdir_recursive(child, cancellable, error))
1158                         return FALSE;
1159                 }
1160
1161         return g_file_delete(file, cancellable, error);
1162 }
1163
1164 /**
1165  * @brief Retrieves the internal scale factor that maps from window coordinates to the actual device pixels
1166  * @param  -
1167  * @returns scale factor
1168  *
1169  *
1170  */
1171 gint scale_factor()
1172 {
1173         LayoutWindow *lw = NULL;
1174
1175 #if GTK_CHECK_VERSION(3, 10, 0)
1176         layout_valid(&lw);
1177         return gtk_widget_get_scale_factor(lw->window);
1178 #else
1179         return 1;
1180 #endif
1181 }
1182 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */