dlls/shell32/trash.c

   1 /*
   2  * The freedesktop.org Trash, implemented using the 0.7 spec version
   3  * (see http://www.ramendik.ru/docs/trashspec.html)
   4  *
   5  * Copyright (C) 2006 Mikolaj Zalewski
   6  * Copyright 2011 Jay Yang
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include "config.h"
  24
  25 #ifdef HAVE_CORESERVICES_CORESERVICES_H
  26 #define GetCurrentThread MacGetCurrentThread
  27 #define LoadResource MacLoadResource
  28 #include <CoreServices/CoreServices.h>
  29 #undef GetCurrentThread
  30 #undef LoadResource
  31 #undef DPRINTF
  32 #endif
  33
  34 #include <stdarg.h>
  35 #include <stdio.h>
  36 #include <fcntl.h>
  37 #include <errno.h>
  38 #include <time.h>
  39 #ifdef HAVE_SYS_STAT_H
  40 # include <sys/stat.h>
  41 #endif
  42 #include <sys/types.h>
  43 #include <stdlib.h>
  44 #ifdef HAVE_UNISTD_H
  45 # include <unistd.h>
  46 #endif
  47 #ifdef HAVE_DIRENT_H
  48 # include <dirent.h>
  49 #endif
  50
  51 #include "windef.h"
  52 #include "winbase.h"
  53 #include "winerror.h"
  54 #include "winreg.h"
  55 #include "shlwapi.h"
  56 #include "winternl.h"
  57 #include "wine/debug.h"
  58 #include "shell32_main.h"
  59 #include "xdg.h"
  60
  61 WINE_DEFAULT_DEBUG_CHANNEL(trash);
  62
  63 #ifdef HAVE_CORESERVICES_CORESERVICES_H
  64
  65 BOOL TRASH_CanTrashFile(LPCWSTR wszPath)
  66 {
  67     char *unix_path;
  68     OSStatus status;
  69     FSRef ref;
  70     FSCatalogInfo catalogInfo;
  71
  72     TRACE("(%s)\n", debugstr_w(wszPath));
  73     if (!(unix_path = wine_get_unix_file_name(wszPath)))
  74         return FALSE;
  75
  76     status = FSPathMakeRef((UInt8*)unix_path, &ref, NULL);
  77     HeapFree(GetProcessHeap(), 0, unix_path);
  78     if (status == noErr)
  79         status = FSGetCatalogInfo(&ref, kFSCatInfoVolume, &catalogInfo, NULL,
  80                                   NULL, NULL);
  81     if (status == noErr)
  82         status = FSFindFolder(catalogInfo.volume, kTrashFolderType,
  83                               kCreateFolder, &ref);
  84
  85     return (status == noErr);
  86 }
  87
  88 BOOL TRASH_TrashFile(LPCWSTR wszPath)
  89 {
  90     char *unix_path;
  91     OSStatus status;
  92
  93     TRACE("(%s)\n", debugstr_w(wszPath));
  94     if (!(unix_path = wine_get_unix_file_name(wszPath)))
  95         return FALSE;
  96
  97     status = FSPathMoveObjectToTrashSync(unix_path, NULL, kFSFileOperationSkipPreflight);
  98
  99     HeapFree(GetProcessHeap(), 0, unix_path);
 100     return (status == noErr);
 101 }
 102
 103 HRESULT TRASH_EnumItems(LPITEMIDLIST **pidls, int *count)
 104 {
 105     FIXME("stub!\n");
 106     return E_NOTIMPL;
 107 }
 108
 109 HRESULT TRASH_UnpackItemID(LPCSHITEMID id, WIN32_FIND_DATAW *data)
 110 {
 111     FIXME("stub!\n");
 112     return E_NOTIMPL;
 113 }
 114
 115 HRESULT TRASH_RestoreItem(LPCITEMIDLIST pidl)
 116 {
 117     FIXME("stub!\n");
 118     return E_NOTIMPL;
 119 }
 120
 121 HRESULT TRASH_EraseItem(LPCITEMIDLIST pidl)
 122 {
 123     FIXME("stub!\n");
 124     return E_NOTIMPL;
 125 }
 126
 127 #else /* HAVE_CORESERVICES_CORESERVICES_H */
 128
 129 static CRITICAL_SECTION TRASH_Creating;
 130 static CRITICAL_SECTION_DEBUG TRASH_Creating_Debug =
 131 {
 132     0, 0, &TRASH_Creating,
 133     { &TRASH_Creating_Debug.ProcessLocksList,
 134       &TRASH_Creating_Debug.ProcessLocksList},
 135     0, 0, { (DWORD_PTR)__FILE__ ": TRASH_Creating"}
 136 };
 137 static CRITICAL_SECTION TRASH_Creating = { &TRASH_Creating_Debug, -1, 0, 0, 0, 0 };
 138
 139 static const char trashinfo_suffix[] = ".trashinfo";
 140 static const char trashinfo_header[] = "[Trash Info]\n";
 141 static const char trashinfo_group[] = "Trash Info";
 142
 143 typedef struct
 144 {
 145     char *info_dir;
 146     char *files_dir;
 147     dev_t device;
 148 } TRASH_BUCKET;
 149
 150 static TRASH_BUCKET *home_trash=NULL;
 151
 152 static char *init_home_dir(const char *subpath)
 153 {
 154     char *path = XDG_BuildPath(XDG_DATA_HOME, subpath);
 155     if (path == NULL) return NULL;
 156     if (!XDG_MakeDirs(path))
 157     {
 158         ERR("Couldn't create directory %s (errno=%d). Trash won't be available\n", debugstr_a(path), errno);
 159         SHFree(path);
 160         path=NULL;
 161     }
 162     return path;
 163 }
 164
 165 static TRASH_BUCKET *TRASH_CreateHomeBucket(void)
 166 {
 167     TRASH_BUCKET *bucket;
 168     struct stat trash_stat;
 169     char *trash_path = NULL;
 170
 171     bucket = SHAlloc(sizeof(TRASH_BUCKET));
 172     if (bucket == NULL)
 173     {
 174         errno = ENOMEM;
 175         goto error;
 176     }
 177     memset(bucket, 0, sizeof(*bucket));
 178     bucket->info_dir = init_home_dir("Trash/info/");
 179     if (bucket->info_dir == NULL) goto error;
 180     bucket->files_dir = init_home_dir("Trash/files/");
 181     if (bucket->files_dir == NULL) goto error;
 182
 183     trash_path = XDG_BuildPath(XDG_DATA_HOME, "Trash/");
 184     if (stat(trash_path, &trash_stat) == -1)
 185         goto error;
 186     bucket->device = trash_stat.st_dev;
 187     SHFree(trash_path);
 188     return bucket;
 189 error:
 190     SHFree(trash_path);
 191     if (bucket)
 192     {
 193         SHFree(bucket->info_dir);
 194         SHFree(bucket->files_dir);
 195     }
 196     SHFree(bucket);
 197     return NULL;
 198 }
 199
 200 static BOOL TRASH_EnsureInitialized(void)
 201 {
 202     if (home_trash == NULL)
 203     {
 204         EnterCriticalSection(&TRASH_Creating);
 205         if (home_trash == NULL)
 206             home_trash = TRASH_CreateHomeBucket();
 207         LeaveCriticalSection(&TRASH_Creating);
 208     }
 209
 210     if (home_trash == NULL)
 211     {
 212         ERR("Couldn't initialize home trash (errno=%d)\n", errno);
 213         return FALSE;
 214     }
 215     return TRUE;
 216 }
 217
 218 static BOOL file_good_for_bucket(const TRASH_BUCKET *pBucket, const struct stat *file_stat)
 219 {
 220     if (pBucket->device != file_stat->st_dev)
 221         return FALSE;
 222     return TRUE;
 223 }
 224
 225 BOOL TRASH_CanTrashFile(LPCWSTR wszPath)
 226 {
 227     struct stat file_stat;
 228     char *unix_path;
 229
 230     TRACE("(%s)\n", debugstr_w(wszPath));
 231     if (!TRASH_EnsureInitialized()) return FALSE;
 232     if (!(unix_path = wine_get_unix_file_name(wszPath)))
 233         return FALSE;
 234     if (lstat(unix_path, &file_stat)==-1)
 235     {
 236         HeapFree(GetProcessHeap(), 0, unix_path);
 237         return FALSE;
 238     }
 239     HeapFree(GetProcessHeap(), 0, unix_path);
 240     return file_good_for_bucket(home_trash, &file_stat);
 241 }
 242
 243 /*
 244  * Try to create a single .trashinfo file. Return TRUE if successful, else FALSE
 245  */
 246 static BOOL try_create_trashinfo_file(const char *info_dir, const char *file_name,
 247     const char *original_file_name)
 248 {
 249     SYSTEMTIME curr_time;
 250     char datebuf[200];
 251     char *path = SHAlloc(strlen(info_dir)+strlen(file_name)+strlen(trashinfo_suffix)+1);
 252     int writer = -1;
 253
 254     if (path==NULL) return FALSE;
 255     wsprintfA(path, "%s%s%s", info_dir, file_name, trashinfo_suffix);
 256     TRACE("Trying to create '%s'\n", path);
 257     writer = open(path, O_CREAT|O_WRONLY|O_TRUNC|O_EXCL, 0600);
 258     if (writer==-1) goto error;
 259
 260     write(writer, trashinfo_header, strlen(trashinfo_header));
 261     if (!XDG_WriteDesktopStringEntry(writer, "Path", XDG_URLENCODE, original_file_name))
 262         goto error;
 263
 264     GetLocalTime( &curr_time );
 265     wnsprintfA(datebuf, 200, "%04d-%02d-%02dT%02d:%02d:%02d",
 266                curr_time.wYear, curr_time.wMonth, curr_time.wDay,
 267                curr_time.wHour, curr_time.wMinute, curr_time.wSecond);
 268     if (!XDG_WriteDesktopStringEntry(writer, "DeletionDate", 0, datebuf))
 269         goto error;
 270     close(writer);
 271     SHFree(path);
 272     return TRUE;
 273
 274 error:
 275     if (writer != -1)
 276     {
 277         close(writer);
 278         unlink(path);
 279     }
 280     SHFree(path);
 281     return FALSE;
 282 }
 283
 284 /*
 285  * Try to create a .trashinfo file. This function will make several attempts with
 286  * different filenames. It will return the filename that succeeded or NULL if a file
 287  * couldn't be created.
 288  */
 289 static char *create_trashinfo(const char *info_dir, const char *file_path)
 290 {
 291     const char *base_name;
 292     char *filename_buffer;
 293     ULONG seed = GetTickCount();
 294     int i;
 295
 296     errno = ENOMEM;       /* out-of-memory is the only case when errno isn't set */
 297     base_name = strrchr(file_path, '/');
 298     if (base_name == NULL)
 299         base_name = file_path;
 300     else
 301         base_name++;
 302
 303     filename_buffer = SHAlloc(strlen(base_name)+9+1);
 304     if (filename_buffer == NULL)
 305         return NULL;
 306     lstrcpyA(filename_buffer, base_name);
 307     if (try_create_trashinfo_file(info_dir, filename_buffer, file_path))
 308         return filename_buffer;
 309     for (i=0; i<30; i++)
 310     {
 311         sprintf(filename_buffer, "%s-%d", base_name, i+1);
 312         if (try_create_trashinfo_file(info_dir, filename_buffer, file_path))
 313             return filename_buffer;
 314     }
 315
 316     for (i=0; i<1000; i++)
 317     {
 318         sprintf(filename_buffer, "%s-%08x", base_name, RtlRandom(&seed));
 319         if (try_create_trashinfo_file(info_dir, filename_buffer, file_path))
 320             return filename_buffer;
 321     }
 322
 323     WARN("Couldn't create trashinfo after 1031 tries (errno=%d)\n", errno);
 324     SHFree(filename_buffer);
 325     return NULL;
 326 }
 327
 328 static void remove_trashinfo_file(const char *info_dir, const char *base_name)
 329 {
 330     char *filename_buffer;
 331
 332     filename_buffer = SHAlloc(lstrlenA(info_dir)+lstrlenA(base_name)+lstrlenA(trashinfo_suffix)+1);
 333     if (filename_buffer == NULL) return;
 334     sprintf(filename_buffer, "%s%s%s", info_dir, base_name, trashinfo_suffix);
 335     unlink(filename_buffer);
 336     SHFree(filename_buffer);
 337 }
 338
 339 static BOOL TRASH_MoveFileToBucket(TRASH_BUCKET *pBucket, const char *unix_path)
 340 {
 341     struct stat file_stat;
 342     char *trash_file_name = NULL;
 343     char *trash_path = NULL;
 344     BOOL ret = TRUE;
 345
 346     if (lstat(unix_path, &file_stat)==-1)
 347         return FALSE;
 348     if (!file_good_for_bucket(pBucket, &file_stat))
 349         return FALSE;
 350
 351     trash_file_name = create_trashinfo(pBucket->info_dir, unix_path);
 352     if (trash_file_name == NULL)
 353         return FALSE;
 354
 355     trash_path = SHAlloc(strlen(pBucket->files_dir)+strlen(trash_file_name)+1);
 356     if (trash_path == NULL) goto error;
 357     lstrcpyA(trash_path, pBucket->files_dir);
 358     lstrcatA(trash_path, trash_file_name);
 359
 360     if (rename(unix_path, trash_path)==0)
 361     {
 362         TRACE("rename succeeded\n");
 363         goto cleanup;
 364     }
 365
 366     /* TODO: try to manually move the file */
 367     ERR("Couldn't move file\n");
 368 error:
 369     ret = FALSE;
 370     remove_trashinfo_file(pBucket->info_dir, trash_file_name);
 371 cleanup:
 372     SHFree(trash_file_name);
 373     SHFree(trash_path);
 374     return ret;
 375 }
 376
 377 BOOL TRASH_TrashFile(LPCWSTR wszPath)
 378 {
 379     char *unix_path;
 380     BOOL result;
 381
 382     TRACE("(%s)\n", debugstr_w(wszPath));
 383     if (!TRASH_EnsureInitialized()) return FALSE;
 384     if (!(unix_path = wine_get_unix_file_name(wszPath)))
 385         return FALSE;
 386     result = TRASH_MoveFileToBucket(home_trash, unix_path);
 387     HeapFree(GetProcessHeap(), 0, unix_path);
 388     return result;
 389 }
 390
 391 /*
 392  * The item ID of a trashed element is built as follows:
 393  *  NUL byte                    - in most PIDLs the first byte is the type so we keep it constant
 394  *  WIN32_FIND_DATAW structure  - with data about original file attributes
 395  *  bucket name                 - currently only an empty string meaning the home bucket is supported
 396  *  trash file name             - a NUL-terminated string
 397  */
 398 static HRESULT TRASH_CreateSimplePIDL(LPCSTR filename, const WIN32_FIND_DATAW *data, LPITEMIDLIST *pidlOut)
 399 {
 400     LPITEMIDLIST pidl = SHAlloc(2+1+sizeof(WIN32_FIND_DATAW)+1+lstrlenA(filename)+1+2);
 401     *pidlOut = NULL;
 402     if (pidl == NULL)
 403         return E_OUTOFMEMORY;
 404     pidl->mkid.cb = (USHORT)(2+1+sizeof(WIN32_FIND_DATAW)+1+lstrlenA(filename)+1);
 405     pidl->mkid.abID[0] = 0;
 406     memcpy(pidl->mkid.abID+1, data, sizeof(WIN32_FIND_DATAW));
 407     pidl->mkid.abID[1+sizeof(WIN32_FIND_DATAW)] = 0;
 408     lstrcpyA((LPSTR)(pidl->mkid.abID+1+sizeof(WIN32_FIND_DATAW)+1), filename);
 409     *(USHORT *)(pidl->mkid.abID+1+sizeof(WIN32_FIND_DATAW)+1+lstrlenA(filename)+1) = 0;
 410     *pidlOut = pidl;
 411     return S_OK;
 412 }
 413
 414 /***********************************************************************
 415  *      TRASH_UnpackItemID [Internal]
 416  *
 417  * DESCRIPTION:
 418  * Extract the information stored in an Item ID. The WIN32_FIND_DATA contains
 419  * the information about the original file. The data->ftLastAccessTime contains
 420  * the deletion time
 421  *
 422  * PARAMETER(S):
 423  * [I] id : the ID of the item
 424  * [O] data : the WIN32_FIND_DATA of the original file. Can be NULL is not needed
 425  */
 426 HRESULT TRASH_UnpackItemID(LPCSHITEMID id, WIN32_FIND_DATAW *data)
 427 {
 428     if (id->cb < 2+1+sizeof(WIN32_FIND_DATAW)+2)
 429         return E_INVALIDARG;
 430     if (id->abID[0] != 0 || id->abID[1+sizeof(WIN32_FIND_DATAW)] != 0)
 431         return E_INVALIDARG;
 432     if (memchr(id->abID+1+sizeof(WIN32_FIND_DATAW)+1, 0, id->cb-(2+1+sizeof(WIN32_FIND_DATAW)+1)) == NULL)
 433         return E_INVALIDARG;
 434
 435     if (data != NULL)
 436         *data = *(const WIN32_FIND_DATAW *)(id->abID+1);
 437     return S_OK;
 438 }
 439
 440 static HRESULT TRASH_GetDetails(const TRASH_BUCKET *bucket, LPCSTR filename, WIN32_FIND_DATAW *data)
 441 {
 442     LPSTR path = NULL;
 443     XDG_PARSED_FILE *parsed = NULL;
 444     char *original_file_name = NULL;
 445     char *deletion_date = NULL;
 446     int fd = -1;
 447     struct stat stats;
 448     HRESULT ret = S_FALSE;
 449     LPWSTR original_dos_name;
 450     int suffix_length = lstrlenA(trashinfo_suffix);
 451     int filename_length = lstrlenA(filename);
 452     int files_length = lstrlenA(bucket->files_dir);
 453     int path_length = max(lstrlenA(bucket->info_dir), files_length);
 454
 455     path = SHAlloc(path_length + filename_length + 1);
 456     if (path == NULL) return E_OUTOFMEMORY;
 457     wsprintfA(path, "%s%s", bucket->files_dir, filename);
 458     path[path_length + filename_length - suffix_length] = 0;  /* remove the '.trashinfo' */
 459     if (lstat(path, &stats) == -1)
 460     {
 461         ERR("Error accessing data file for trashinfo %s (errno=%d)\n", filename, errno);
 462         goto failed;
 463     }
 464
 465     wsprintfA(path, "%s%s", bucket->info_dir, filename);
 466     fd = open(path, O_RDONLY);
 467     if (fd == -1)
 468     {
 469         ERR("Couldn't open trashinfo file %s (errno=%d)\n", path, errno);
 470         goto failed;
 471     }
 472
 473     parsed = XDG_ParseDesktopFile(fd);
 474     if (parsed == NULL)
 475     {
 476         ERR("Parse error in trashinfo file %s\n", path);
 477         goto failed;
 478     }
 479
 480     original_file_name = XDG_GetStringValue(parsed, trashinfo_group, "Path", XDG_URLENCODE);
 481     if (original_file_name == NULL)
 482     {
 483         ERR("No 'Path' entry in trashinfo file\n");
 484         goto failed;
 485     }
 486
 487     ZeroMemory(data, sizeof(*data));
 488     data->nFileSizeHigh = (DWORD)((LONGLONG)stats.st_size>>32);
 489     data->nFileSizeLow = stats.st_size & 0xffffffff;
 490     RtlSecondsSince1970ToTime(stats.st_mtime, (LARGE_INTEGER *)&data->ftLastWriteTime);
 491
 492     original_dos_name = wine_get_dos_file_name(original_file_name);
 493     if (original_dos_name != NULL)
 494     {
 495         lstrcpynW(data->cFileName, original_dos_name, MAX_PATH);
 496         SHFree(original_dos_name);
 497     }
 498     else
 499     {
 500         /* show only the file name */
 501         char *file = strrchr(original_file_name, '/');
 502         if (file == NULL)
 503             file = original_file_name;
 504         MultiByteToWideChar(CP_UNIXCP, 0, file, -1, data->cFileName, MAX_PATH);
 505     }
 506
 507     deletion_date = XDG_GetStringValue(parsed, trashinfo_group, "DeletionDate", 0);
 508     if (deletion_date)
 509     {
 510         struct tm del_time;
 511         time_t del_secs;
 512
 513         sscanf(deletion_date, "%d-%d-%dT%d:%d:%d",
 514             &del_time.tm_year, &del_time.tm_mon, &del_time.tm_mday,
 515             &del_time.tm_hour, &del_time.tm_min, &del_time.tm_sec);
 516         del_time.tm_year -= 1900;
 517         del_time.tm_mon--;
 518         del_time.tm_isdst = -1;
 519         del_secs = mktime(&del_time);
 520
 521         RtlSecondsSince1970ToTime(del_secs, (LARGE_INTEGER *)&data->ftLastAccessTime);
 522     }
 523
 524     ret = S_OK;
 525 failed:
 526     SHFree(path);
 527     SHFree(original_file_name);
 528     SHFree(deletion_date);
 529     if (fd != -1)
 530         close(fd);
 531     XDG_FreeParsedFile(parsed);
 532     return ret;
 533 }
 534
 535 static INT CALLBACK free_item_callback(void *item, void *lParam)
 536 {
 537     SHFree(item);
 538     return TRUE;
 539 }
 540
 541 static HDPA enum_bucket_trashinfos(const TRASH_BUCKET *bucket, int *count)
 542 {
 543     HDPA ret = DPA_Create(32);
 544     struct dirent *entry;
 545     DIR *dir = NULL;
 546
 547     errno = ENOMEM;
 548     *count = 0;
 549     if (ret == NULL) goto failed;
 550     dir = opendir(bucket->info_dir);
 551     if (dir == NULL) goto failed;
 552     while ((entry = readdir(dir)) != NULL)
 553     {
 554         LPSTR filename;
 555         int namelen = lstrlenA(entry->d_name);
 556         int suffixlen = lstrlenA(trashinfo_suffix);
 557         if (namelen <= suffixlen ||
 558                 lstrcmpA(entry->d_name+namelen-suffixlen, trashinfo_suffix) != 0)
 559             continue;
 560
 561         filename = StrDupA(entry->d_name);
 562         if (filename == NULL)
 563             goto failed;
 564         if (DPA_InsertPtr(ret, DPA_APPEND, filename) == -1)
 565         {
 566             LocalFree(filename);
 567             goto failed;
 568         }
 569         (*count)++;
 570     }
 571     closedir(dir);
 572     return ret;
 573 failed:
 574     if (dir) closedir(dir);
 575     if (ret)
 576         DPA_DestroyCallback(ret, free_item_callback, NULL);
 577     return NULL;
 578 }
 579
 580 HRESULT TRASH_EnumItems(LPITEMIDLIST **pidls, int *count)
 581 {
 582     int ti_count;
 583     int pos=0, i;
 584     HRESULT err = E_OUTOFMEMORY;
 585     HDPA tinfs;
 586
 587     if (!TRASH_EnsureInitialized()) return E_FAIL;
 588     tinfs = enum_bucket_trashinfos(home_trash, &ti_count);
 589     if (tinfs == NULL) return E_FAIL;
 590     *pidls = SHAlloc(sizeof(LPITEMIDLIST)*ti_count);
 591     if (!*pidls) goto failed;
 592     for (i=0; i<ti_count; i++)
 593     {
 594         WIN32_FIND_DATAW data;
 595         LPCSTR filename;
 596
 597         filename = DPA_GetPtr(tinfs, i);
 598         if (FAILED(err = TRASH_GetDetails(home_trash, filename, &data)))
 599             goto failed;
 600         if (err == S_FALSE)
 601             continue;
 602         if (FAILED(err = TRASH_CreateSimplePIDL(filename, &data, &(*pidls)[pos])))
 603             goto failed;
 604         pos++;
 605     }
 606     *count = pos;
 607     DPA_DestroyCallback(tinfs, free_item_callback, NULL);
 608     return S_OK;
 609 failed:
 610     if (*pidls != NULL)
 611     {
 612         int j;
 613         for (j=0; j<pos; j++)
 614             SHFree((*pidls)[j]);
 615         SHFree(*pidls);
 616     }
 617     DPA_DestroyCallback(tinfs, free_item_callback, NULL);
 618
 619     return err;
 620 }
 621
 622 HRESULT TRASH_RestoreItem(LPCITEMIDLIST pidl){
 623     int suffix_length = strlen(trashinfo_suffix);
 624     LPCSHITEMID id = &(pidl->mkid);
 625     const char *bucket_name = (const char*)(id->abID+1+sizeof(WIN32_FIND_DATAW));
 626     const char *filename = (const char*)(id->abID+1+sizeof(WIN32_FIND_DATAW)+strlen(bucket_name)+1);
 627     char *restore_path;
 628     WIN32_FIND_DATAW data;
 629     char *file_path;
 630
 631     TRACE("(%p)\n",pidl);
 632     if(strcmp(filename+strlen(filename)-suffix_length,trashinfo_suffix))
 633     {
 634         ERR("pidl at %p is not a valid recycle bin entry\n",pidl);
 635         return E_INVALIDARG;
 636     }
 637     TRASH_UnpackItemID(id,&data);
 638     restore_path = wine_get_unix_file_name(data.cFileName);
 639     file_path = SHAlloc(max(strlen(home_trash->files_dir),strlen(home_trash->info_dir))+strlen(filename)+1);
 640     sprintf(file_path,"%s%s",home_trash->files_dir,filename);
 641     file_path[strlen(home_trash->files_dir)+strlen(filename)-suffix_length] = '\0';
 642     if(!rename(file_path,restore_path))
 643     {
 644             sprintf(file_path,"%s%s",home_trash->info_dir,filename);
 645             if(unlink(file_path))
 646                 WARN("failed to delete the trashinfo file %s\n",filename);
 647     }
 648     else
 649         WARN("could not erase %s from the trash (errno=%i)\n",filename,errno);
 650     SHFree(file_path);
 651     HeapFree(GetProcessHeap(), 0, restore_path);
 652     return S_OK;
 653 }
 654
 655 HRESULT TRASH_EraseItem(LPCITEMIDLIST pidl)
 656 {
 657     int suffix_length = strlen(trashinfo_suffix);
 658
 659     LPCSHITEMID id = &(pidl->mkid);
 660     const char *bucket_name = (const char*)(id->abID+1+sizeof(WIN32_FIND_DATAW));
 661     const char *filename = (const char*)(id->abID+1+sizeof(WIN32_FIND_DATAW)+strlen(bucket_name)+1);
 662     char *file_path;
 663
 664     TRACE("(%p)\n",pidl);
 665     if(strcmp(filename+strlen(filename)-suffix_length,trashinfo_suffix))
 666     {
 667         ERR("pidl at %p is not a valid recycle bin entry\n",pidl);
 668         return E_INVALIDARG;
 669     }
 670     file_path = SHAlloc(max(strlen(home_trash->files_dir),strlen(home_trash->info_dir))+strlen(filename)+1);
 671     sprintf(file_path,"%s%s",home_trash->info_dir,filename);
 672     if(unlink(file_path))
 673         WARN("failed to delete the trashinfo file %s\n",filename);
 674     sprintf(file_path,"%s%s",home_trash->files_dir,filename);
 675     file_path[strlen(home_trash->files_dir)+strlen(filename)-suffix_length] = '\0';
 676     if(unlink(file_path))
 677         WARN("could not erase %s from the trash (errno=%i)\n",filename,errno);
 678     SHFree(file_path);
 679     return S_OK;
 680 }
 681
 682 #endif /* HAVE_CORESERVICES_CORESERVICES_H */