dlls/msi/storages.c

   1 /*
   2  * Implementation of the Microsoft Installer (msi.dll)
   3  *
   4  * Copyright 2008 James Hawkins
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <stdarg.h>
  22
  23 #define COBJMACROS
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #include "winerror.h"
  29 #include "ole2.h"
  30 #include "msi.h"
  31 #include "msiquery.h"
  32 #include "objbase.h"
  33 #include "msipriv.h"
  34 #include "query.h"
  35
  36 #include "wine/debug.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(msidb);
  39
  40 #define NUM_STORAGES_COLS    2
  41 #define MAX_STORAGES_NAME_LEN 62
  42
  43 typedef struct tabSTORAGE
  44 {
  45     UINT str_index;
  46     LPWSTR name;
  47     IStorage *storage;
  48 } STORAGE;
  49
  50 typedef struct tagMSISTORAGESVIEW
  51 {
  52     MSIVIEW view;
  53     MSIDATABASE *db;
  54     STORAGE **storages;
  55     UINT max_storages;
  56     UINT num_rows;
  57     UINT row_size;
  58 } MSISTORAGESVIEW;
  59
  60 static BOOL storages_set_table_size(MSISTORAGESVIEW *sv, UINT size)
  61 {
  62     if (size >= sv->max_storages)
  63     {
  64         sv->max_storages *= 2;
  65         sv->storages = msi_realloc(sv->storages, sv->max_storages * sizeof(STORAGE *));
  66         if (!sv->storages)
  67             return FALSE;
  68     }
  69
  70     return TRUE;
  71 }
  72
  73 static STORAGE *create_storage(MSISTORAGESVIEW *sv, LPWSTR name, IStorage *stg)
  74 {
  75     STORAGE *storage;
  76
  77     storage = msi_alloc(sizeof(STORAGE));
  78     if (!storage)
  79         return NULL;
  80
  81     storage->name = strdupW(name);
  82     if (!storage->name)
  83     {
  84         msi_free(storage);
  85         return NULL;
  86     }
  87
  88     storage->str_index = msi_addstringW(sv->db->strings, 0, storage->name, -1, 1, StringNonPersistent);
  89     storage->storage = stg;
  90
  91     if (storage->storage)
  92         IStorage_AddRef(storage->storage);
  93
  94     return storage;
  95 }
  96
  97 static UINT STORAGES_fetch_int(struct tagMSIVIEW *view, UINT row, UINT col, UINT *val)
  98 {
  99     MSISTORAGESVIEW *sv = (MSISTORAGESVIEW *)view;
 100
 101     TRACE("(%p, %d, %d, %p)\n", view, row, col, val);
 102
 103     if (col != 1)
 104         return ERROR_INVALID_PARAMETER;
 105
 106     if (row >= sv->num_rows)
 107         return ERROR_NO_MORE_ITEMS;
 108
 109     *val = sv->storages[row]->str_index;
 110
 111     return ERROR_SUCCESS;
 112 }
 113
 114 static UINT STORAGES_fetch_stream(struct tagMSIVIEW *view, UINT row, UINT col, IStream **stm)
 115 {
 116     MSISTORAGESVIEW *sv = (MSISTORAGESVIEW *)view;
 117
 118     TRACE("(%p, %d, %d, %p)\n", view, row, col, stm);
 119
 120     if (row >= sv->num_rows)
 121         return ERROR_FUNCTION_FAILED;
 122
 123     return ERROR_INVALID_DATA;
 124 }
 125
 126 static UINT STORAGES_get_row( struct tagMSIVIEW *view, UINT row, MSIRECORD **rec )
 127 {
 128     MSISTORAGESVIEW *sv = (MSISTORAGESVIEW *)view;
 129
 130     FIXME("%p %d %p\n", sv, row, rec);
 131
 132     return ERROR_CALL_NOT_IMPLEMENTED;
 133 }
 134
 135 static HRESULT stream_to_storage(IStream *stm, IStorage **stg)
 136 {
 137     ILockBytes *lockbytes = NULL;
 138     STATSTG stat;
 139     LPVOID data;
 140     HRESULT hr;
 141     DWORD size, read;
 142     ULARGE_INTEGER offset;
 143
 144     hr = IStream_Stat(stm, &stat, STATFLAG_NONAME);
 145     if (FAILED(hr))
 146         return hr;
 147
 148     if (stat.cbSize.QuadPart >> 32)
 149     {
 150         ERR("Storage is too large\n");
 151         return E_FAIL;
 152     }
 153
 154     size = stat.cbSize.QuadPart;
 155     data = msi_alloc(size);
 156     if (!data)
 157         return E_OUTOFMEMORY;
 158
 159     hr = IStream_Read(stm, data, size, &read);
 160     if (FAILED(hr) || read != size)
 161         goto done;
 162
 163     hr = CreateILockBytesOnHGlobal(NULL, TRUE, &lockbytes);
 164     if (FAILED(hr))
 165         goto done;
 166
 167     ZeroMemory(&offset, sizeof(ULARGE_INTEGER));
 168     hr = ILockBytes_WriteAt(lockbytes, offset, data, size, &read);
 169     if (FAILED(hr) || read != size)
 170         goto done;
 171
 172     hr = StgOpenStorageOnILockBytes(lockbytes, NULL,
 173                                     STGM_READWRITE | STGM_SHARE_DENY_NONE,
 174                                     NULL, 0, stg);
 175     if (FAILED(hr))
 176         goto done;
 177
 178 done:
 179     msi_free(data);
 180     if (lockbytes) ILockBytes_Release(lockbytes);
 181     return hr;
 182 }
 183
 184 static UINT STORAGES_set_row(struct tagMSIVIEW *view, UINT row, MSIRECORD *rec, UINT mask)
 185 {
 186     MSISTORAGESVIEW *sv = (MSISTORAGESVIEW *)view;
 187     IStorage *stg, *substg = NULL;
 188     IStream *stm;
 189     LPWSTR name = NULL;
 190     HRESULT hr;
 191     UINT r = ERROR_FUNCTION_FAILED;
 192
 193     TRACE("(%p, %p)\n", view, rec);
 194
 195     if (row > sv->num_rows)
 196         return ERROR_FUNCTION_FAILED;
 197
 198     r = MSI_RecordGetIStream(rec, 2, &stm);
 199     if (r != ERROR_SUCCESS)
 200         return r;
 201
 202     r = stream_to_storage(stm, &stg);
 203     if (r != ERROR_SUCCESS)
 204     {
 205         IStream_Release(stm);
 206         return r;
 207     }
 208
 209     name = strdupW(MSI_RecordGetString(rec, 1));
 210     if (!name)
 211     {
 212         r = ERROR_OUTOFMEMORY;
 213         goto done;
 214     }
 215
 216     hr = IStorage_CreateStorage(sv->db->storage, name,
 217                                 STGM_WRITE | STGM_SHARE_EXCLUSIVE,
 218                                 0, 0, &substg);
 219     if (FAILED(hr))
 220     {
 221         r = ERROR_FUNCTION_FAILED;
 222         goto done;
 223     }
 224
 225     hr = IStorage_CopyTo(stg, 0, NULL, NULL, substg);
 226     if (FAILED(hr))
 227     {
 228         r = ERROR_FUNCTION_FAILED;
 229         goto done;
 230     }
 231
 232     sv->storages[row] = create_storage(sv, name, stg);
 233     if (!sv->storages[row])
 234         r = ERROR_FUNCTION_FAILED;
 235
 236 done:
 237     msi_free(name);
 238
 239     if (substg) IStorage_Release(substg);
 240     IStorage_Release(stg);
 241     IStream_Release(stm);
 242
 243     return r;
 244 }
 245
 246 static UINT STORAGES_insert_row(struct tagMSIVIEW *view, MSIRECORD *rec, BOOL temporary)
 247 {
 248     MSISTORAGESVIEW *sv = (MSISTORAGESVIEW *)view;
 249
 250     if (!storages_set_table_size(sv, ++sv->num_rows))
 251         return ERROR_FUNCTION_FAILED;
 252
 253     return STORAGES_set_row(view, sv->num_rows - 1, rec, 0);
 254 }
 255
 256 static UINT STORAGES_delete_row(struct tagMSIVIEW *view, UINT row)
 257 {
 258     FIXME("(%p %d): stub!\n", view, row);
 259     return ERROR_SUCCESS;
 260 }
 261
 262 static UINT STORAGES_execute(struct tagMSIVIEW *view, MSIRECORD *record)
 263 {
 264     TRACE("(%p, %p)\n", view, record);
 265     return ERROR_SUCCESS;
 266 }
 267
 268 static UINT STORAGES_close(struct tagMSIVIEW *view)
 269 {
 270     TRACE("(%p)\n", view);
 271     return ERROR_SUCCESS;
 272 }
 273
 274 static UINT STORAGES_get_dimensions(struct tagMSIVIEW *view, UINT *rows, UINT *cols)
 275 {
 276     MSISTORAGESVIEW *sv = (MSISTORAGESVIEW *)view;
 277
 278     TRACE("(%p, %p, %p)\n", view, rows, cols);
 279
 280     if (cols) *cols = NUM_STORAGES_COLS;
 281     if (rows) *rows = sv->num_rows;
 282
 283     return ERROR_SUCCESS;
 284 }
 285
 286 static UINT STORAGES_get_column_info(struct tagMSIVIEW *view,
 287                                     UINT n, LPWSTR *name, UINT *type)
 288 {
 289     LPCWSTR name_ptr = NULL;
 290
 291     static const WCHAR Name[] = {'N','a','m','e',0};
 292     static const WCHAR Data[] = {'D','a','t','a',0};
 293
 294     TRACE("(%p, %d, %p, %p)\n", view, n, name, type);
 295
 296     if (n == 0 || n > NUM_STORAGES_COLS)
 297         return ERROR_INVALID_PARAMETER;
 298
 299     switch (n)
 300     {
 301     case 1:
 302         name_ptr = Name;
 303         if (type) *type = MSITYPE_STRING | MAX_STORAGES_NAME_LEN;
 304         break;
 305
 306     case 2:
 307         name_ptr = Data;
 308         if (type) *type = MSITYPE_STRING | MSITYPE_VALID | MSITYPE_NULLABLE;
 309         break;
 310     }
 311
 312     if (name)
 313     {
 314         *name = strdupW(name_ptr);
 315         if (!*name) return ERROR_FUNCTION_FAILED;
 316     }
 317
 318     return ERROR_SUCCESS;
 319 }
 320
 321 static UINT storages_find_row(MSISTORAGESVIEW *sv, MSIRECORD *rec, UINT *row)
 322 {
 323     LPCWSTR str;
 324     UINT i, id, data;
 325
 326     str = MSI_RecordGetString(rec, 1);
 327     msi_string2idW(sv->db->strings, str, &id);
 328
 329     for (i = 0; i < sv->num_rows; i++)
 330     {
 331         STORAGES_fetch_int(&sv->view, i, 1, &data);
 332
 333         if (data == id)
 334         {
 335             *row = i;
 336             return ERROR_SUCCESS;
 337         }
 338     }
 339
 340     return ERROR_FUNCTION_FAILED;
 341 }
 342
 343 static UINT storages_modify_update(struct tagMSIVIEW *view, MSIRECORD *rec)
 344 {
 345     MSISTORAGESVIEW *sv = (MSISTORAGESVIEW *)view;
 346     UINT r, row;
 347
 348     r = storages_find_row(sv, rec, &row);
 349     if (r != ERROR_SUCCESS)
 350         return ERROR_FUNCTION_FAILED;
 351
 352     return STORAGES_set_row(view, row, rec, 0);
 353 }
 354
 355 static UINT storages_modify_assign(struct tagMSIVIEW *view, MSIRECORD *rec)
 356 {
 357     MSISTORAGESVIEW *sv = (MSISTORAGESVIEW *)view;
 358     UINT r, row;
 359
 360     r = storages_find_row(sv, rec, &row);
 361     if (r == ERROR_SUCCESS)
 362         return storages_modify_update(view, rec);
 363
 364     return STORAGES_insert_row(view, rec, FALSE);
 365 }
 366
 367 static UINT STORAGES_modify(struct tagMSIVIEW *view, MSIMODIFY eModifyMode, MSIRECORD *rec, UINT row)
 368 {
 369     UINT r;
 370
 371     TRACE("%p %d %p\n", view, eModifyMode, rec);
 372
 373     switch (eModifyMode)
 374     {
 375     case MSIMODIFY_ASSIGN:
 376         r = storages_modify_assign(view, rec);
 377         break;
 378
 379     case MSIMODIFY_INSERT:
 380         r = STORAGES_insert_row(view, rec, FALSE);
 381         break;
 382
 383     case MSIMODIFY_UPDATE:
 384         r = storages_modify_update(view, rec);
 385         break;
 386
 387     case MSIMODIFY_VALIDATE_NEW:
 388     case MSIMODIFY_INSERT_TEMPORARY:
 389     case MSIMODIFY_REFRESH:
 390     case MSIMODIFY_REPLACE:
 391     case MSIMODIFY_MERGE:
 392     case MSIMODIFY_DELETE:
 393     case MSIMODIFY_VALIDATE:
 394     case MSIMODIFY_VALIDATE_FIELD:
 395     case MSIMODIFY_VALIDATE_DELETE:
 396         FIXME("%p %d %p - mode not implemented\n", view, eModifyMode, rec );
 397         r = ERROR_CALL_NOT_IMPLEMENTED;
 398         break;
 399
 400     default:
 401         r = ERROR_INVALID_DATA;
 402     }
 403
 404     return r;
 405 }
 406
 407 static UINT STORAGES_delete(struct tagMSIVIEW *view)
 408 {
 409     MSISTORAGESVIEW *sv = (MSISTORAGESVIEW *)view;
 410     UINT i;
 411
 412     TRACE("(%p)\n", view);
 413
 414     for (i = 0; i < sv->num_rows; i++)
 415     {
 416         if (sv->storages[i]->storage)
 417             IStorage_Release(sv->storages[i]->storage);
 418
 419         msi_free(sv->storages[i]);
 420     }
 421
 422     msi_free(sv->storages);
 423     sv->storages = NULL;
 424
 425     return ERROR_SUCCESS;
 426 }
 427
 428 static UINT STORAGES_find_matching_rows(struct tagMSIVIEW *view, UINT col,
 429                                        UINT val, UINT *row, MSIITERHANDLE *handle)
 430 {
 431     MSISTORAGESVIEW *sv = (MSISTORAGESVIEW *)view;
 432     UINT index = (UINT)*handle;
 433
 434     TRACE("(%d, %d): %d\n", *row, col, val);
 435
 436     if (col == 0 || col > NUM_STORAGES_COLS)
 437         return ERROR_INVALID_PARAMETER;
 438
 439     while (index < sv->num_rows)
 440     {
 441         if (sv->storages[index]->str_index == val)
 442         {
 443             *row = index;
 444             break;
 445         }
 446
 447         index++;
 448     }
 449
 450     *handle = (MSIITERHANDLE)++index;
 451     if (index >= sv->num_rows)
 452         return ERROR_NO_MORE_ITEMS;
 453
 454     return ERROR_SUCCESS;
 455 }
 456
 457 static const MSIVIEWOPS storages_ops =
 458 {
 459     STORAGES_fetch_int,
 460     STORAGES_fetch_stream,
 461     STORAGES_get_row,
 462     STORAGES_set_row,
 463     STORAGES_insert_row,
 464     STORAGES_delete_row,
 465     STORAGES_execute,
 466     STORAGES_close,
 467     STORAGES_get_dimensions,
 468     STORAGES_get_column_info,
 469     STORAGES_modify,
 470     STORAGES_delete,
 471     STORAGES_find_matching_rows,
 472     NULL,
 473     NULL,
 474     NULL,
 475     NULL,
 476     NULL,
 477     NULL,
 478 };
 479
 480 static INT add_storages_to_table(MSISTORAGESVIEW *sv)
 481 {
 482     STORAGE *storage = NULL;
 483     IEnumSTATSTG *stgenum = NULL;
 484     STATSTG stat;
 485     HRESULT hr;
 486     UINT count = 0, size;
 487
 488     hr = IStorage_EnumElements(sv->db->storage, 0, NULL, 0, &stgenum);
 489     if (FAILED(hr))
 490         return -1;
 491
 492     sv->max_storages = 1;
 493     sv->storages = msi_alloc(sizeof(STORAGE *));
 494     if (!sv->storages)
 495         return -1;
 496
 497     while (TRUE)
 498     {
 499         size = 0;
 500         hr = IEnumSTATSTG_Next(stgenum, 1, &stat, &size);
 501         if (FAILED(hr) || !size)
 502             break;
 503
 504         if (stat.type != STGTY_STORAGE)
 505         {
 506             CoTaskMemFree(stat.pwcsName);
 507             continue;
 508         }
 509
 510         TRACE("enumerated storage %s\n", debugstr_w(stat.pwcsName));
 511
 512         storage = create_storage(sv, stat.pwcsName, NULL);
 513         if (!storage)
 514         {
 515             count = -1;
 516             CoTaskMemFree(stat.pwcsName);
 517             break;
 518         }
 519
 520         IStorage_OpenStorage(sv->db->storage, stat.pwcsName, NULL,
 521                              STGM_READ | STGM_SHARE_EXCLUSIVE, NULL, 0,
 522                              &storage->storage);
 523         CoTaskMemFree(stat.pwcsName);
 524
 525         if (!storages_set_table_size(sv, ++count))
 526         {
 527             count = -1;
 528             break;
 529         }
 530
 531         sv->storages[count - 1] = storage;
 532     }
 533
 534     IEnumSTATSTG_Release(stgenum);
 535     return count;
 536 }
 537
 538 UINT STORAGES_CreateView(MSIDATABASE *db, MSIVIEW **view)
 539 {
 540     MSISTORAGESVIEW *sv;
 541     INT rows;
 542
 543     TRACE("(%p, %p)\n", db, view);
 544
 545     sv = msi_alloc(sizeof(MSISTORAGESVIEW));
 546     if (!sv)
 547         return ERROR_FUNCTION_FAILED;
 548
 549     sv->view.ops = &storages_ops;
 550     sv->db = db;
 551
 552     rows = add_storages_to_table(sv);
 553     if (rows < 0)
 554         return ERROR_FUNCTION_FAILED;
 555
 556     sv->num_rows = rows;
 557
 558     *view = (MSIVIEW *)sv;
 559
 560     return ERROR_SUCCESS;
 561 }