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, UINT row, 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     if (row == -1)
 254         row = sv->num_rows - 1;
 255
 256     /* FIXME have to readjust rows */
 257
 258     return STORAGES_set_row(view, row, rec, 0);
 259 }
 260
 261 static UINT STORAGES_delete_row(struct tagMSIVIEW *view, UINT row)
 262 {
 263     FIXME("(%p %d): stub!\n", view, row);
 264     return ERROR_SUCCESS;
 265 }
 266
 267 static UINT STORAGES_execute(struct tagMSIVIEW *view, MSIRECORD *record)
 268 {
 269     TRACE("(%p, %p)\n", view, record);
 270     return ERROR_SUCCESS;
 271 }
 272
 273 static UINT STORAGES_close(struct tagMSIVIEW *view)
 274 {
 275     TRACE("(%p)\n", view);
 276     return ERROR_SUCCESS;
 277 }
 278
 279 static UINT STORAGES_get_dimensions(struct tagMSIVIEW *view, UINT *rows, UINT *cols)
 280 {
 281     MSISTORAGESVIEW *sv = (MSISTORAGESVIEW *)view;
 282
 283     TRACE("(%p, %p, %p)\n", view, rows, cols);
 284
 285     if (cols) *cols = NUM_STORAGES_COLS;
 286     if (rows) *rows = sv->num_rows;
 287
 288     return ERROR_SUCCESS;
 289 }
 290
 291 static UINT STORAGES_get_column_info(struct tagMSIVIEW *view, UINT n,
 292                                      LPWSTR *name, UINT *type, BOOL *temporary)
 293 {
 294     LPCWSTR name_ptr = NULL;
 295
 296     static const WCHAR Name[] = {'N','a','m','e',0};
 297     static const WCHAR Data[] = {'D','a','t','a',0};
 298
 299     TRACE("(%p, %d, %p, %p, %p)\n", view, n, name, type, temporary);
 300
 301     if (n == 0 || n > NUM_STORAGES_COLS)
 302         return ERROR_INVALID_PARAMETER;
 303
 304     switch (n)
 305     {
 306     case 1:
 307         name_ptr = Name;
 308         if (type) *type = MSITYPE_STRING | MAX_STORAGES_NAME_LEN;
 309         break;
 310
 311     case 2:
 312         name_ptr = Data;
 313         if (type) *type = MSITYPE_STRING | MSITYPE_VALID | MSITYPE_NULLABLE;
 314         break;
 315     }
 316
 317     if (name)
 318     {
 319         *name = strdupW(name_ptr);
 320         if (!*name) return ERROR_FUNCTION_FAILED;
 321     }
 322
 323     if (temporary)
 324         *temporary = FALSE;
 325
 326     return ERROR_SUCCESS;
 327 }
 328
 329 static UINT storages_find_row(MSISTORAGESVIEW *sv, MSIRECORD *rec, UINT *row)
 330 {
 331     LPCWSTR str;
 332     UINT i, id, data;
 333
 334     str = MSI_RecordGetString(rec, 1);
 335     msi_string2idW(sv->db->strings, str, &id);
 336
 337     for (i = 0; i < sv->num_rows; i++)
 338     {
 339         STORAGES_fetch_int(&sv->view, i, 1, &data);
 340
 341         if (data == id)
 342         {
 343             *row = i;
 344             return ERROR_SUCCESS;
 345         }
 346     }
 347
 348     return ERROR_FUNCTION_FAILED;
 349 }
 350
 351 static UINT storages_modify_update(struct tagMSIVIEW *view, MSIRECORD *rec)
 352 {
 353     MSISTORAGESVIEW *sv = (MSISTORAGESVIEW *)view;
 354     UINT r, row;
 355
 356     r = storages_find_row(sv, rec, &row);
 357     if (r != ERROR_SUCCESS)
 358         return ERROR_FUNCTION_FAILED;
 359
 360     return STORAGES_set_row(view, row, rec, 0);
 361 }
 362
 363 static UINT storages_modify_assign(struct tagMSIVIEW *view, MSIRECORD *rec)
 364 {
 365     MSISTORAGESVIEW *sv = (MSISTORAGESVIEW *)view;
 366     UINT r, row;
 367
 368     r = storages_find_row(sv, rec, &row);
 369     if (r == ERROR_SUCCESS)
 370         return storages_modify_update(view, rec);
 371
 372     return STORAGES_insert_row(view, rec, -1, FALSE);
 373 }
 374
 375 static UINT STORAGES_modify(struct tagMSIVIEW *view, MSIMODIFY eModifyMode, MSIRECORD *rec, UINT row)
 376 {
 377     UINT r;
 378
 379     TRACE("%p %d %p\n", view, eModifyMode, rec);
 380
 381     switch (eModifyMode)
 382     {
 383     case MSIMODIFY_ASSIGN:
 384         r = storages_modify_assign(view, rec);
 385         break;
 386
 387     case MSIMODIFY_INSERT:
 388         r = STORAGES_insert_row(view, rec, -1, FALSE);
 389         break;
 390
 391     case MSIMODIFY_UPDATE:
 392         r = storages_modify_update(view, rec);
 393         break;
 394
 395     case MSIMODIFY_VALIDATE_NEW:
 396     case MSIMODIFY_INSERT_TEMPORARY:
 397     case MSIMODIFY_REFRESH:
 398     case MSIMODIFY_REPLACE:
 399     case MSIMODIFY_MERGE:
 400     case MSIMODIFY_DELETE:
 401     case MSIMODIFY_VALIDATE:
 402     case MSIMODIFY_VALIDATE_FIELD:
 403     case MSIMODIFY_VALIDATE_DELETE:
 404         FIXME("%p %d %p - mode not implemented\n", view, eModifyMode, rec );
 405         r = ERROR_CALL_NOT_IMPLEMENTED;
 406         break;
 407
 408     default:
 409         r = ERROR_INVALID_DATA;
 410     }
 411
 412     return r;
 413 }
 414
 415 static UINT STORAGES_delete(struct tagMSIVIEW *view)
 416 {
 417     MSISTORAGESVIEW *sv = (MSISTORAGESVIEW *)view;
 418     UINT i;
 419
 420     TRACE("(%p)\n", view);
 421
 422     for (i = 0; i < sv->num_rows; i++)
 423     {
 424         if (sv->storages[i]->storage)
 425             IStorage_Release(sv->storages[i]->storage);
 426
 427         msi_free(sv->storages[i]);
 428     }
 429
 430     msi_free(sv->storages);
 431     sv->storages = NULL;
 432
 433     return ERROR_SUCCESS;
 434 }
 435
 436 static UINT STORAGES_find_matching_rows(struct tagMSIVIEW *view, UINT col,
 437                                        UINT val, UINT *row, MSIITERHANDLE *handle)
 438 {
 439     MSISTORAGESVIEW *sv = (MSISTORAGESVIEW *)view;
 440     UINT index = (UINT)*handle;
 441
 442     TRACE("(%d, %d): %d\n", *row, col, val);
 443
 444     if (col == 0 || col > NUM_STORAGES_COLS)
 445         return ERROR_INVALID_PARAMETER;
 446
 447     while (index < sv->num_rows)
 448     {
 449         if (sv->storages[index]->str_index == val)
 450         {
 451             *row = index;
 452             break;
 453         }
 454
 455         index++;
 456     }
 457
 458     *handle = (MSIITERHANDLE)++index;
 459     if (index >= sv->num_rows)
 460         return ERROR_NO_MORE_ITEMS;
 461
 462     return ERROR_SUCCESS;
 463 }
 464
 465 static const MSIVIEWOPS storages_ops =
 466 {
 467     STORAGES_fetch_int,
 468     STORAGES_fetch_stream,
 469     STORAGES_get_row,
 470     STORAGES_set_row,
 471     STORAGES_insert_row,
 472     STORAGES_delete_row,
 473     STORAGES_execute,
 474     STORAGES_close,
 475     STORAGES_get_dimensions,
 476     STORAGES_get_column_info,
 477     STORAGES_modify,
 478     STORAGES_delete,
 479     STORAGES_find_matching_rows,
 480     NULL,
 481     NULL,
 482     NULL,
 483     NULL,
 484     NULL,
 485     NULL,
 486 };
 487
 488 static INT add_storages_to_table(MSISTORAGESVIEW *sv)
 489 {
 490     STORAGE *storage = NULL;
 491     IEnumSTATSTG *stgenum = NULL;
 492     STATSTG stat;
 493     HRESULT hr;
 494     UINT count = 0, size;
 495
 496     hr = IStorage_EnumElements(sv->db->storage, 0, NULL, 0, &stgenum);
 497     if (FAILED(hr))
 498         return -1;
 499
 500     sv->max_storages = 1;
 501     sv->storages = msi_alloc(sizeof(STORAGE *));
 502     if (!sv->storages)
 503         return -1;
 504
 505     while (TRUE)
 506     {
 507         size = 0;
 508         hr = IEnumSTATSTG_Next(stgenum, 1, &stat, &size);
 509         if (FAILED(hr) || !size)
 510             break;
 511
 512         if (stat.type != STGTY_STORAGE)
 513         {
 514             CoTaskMemFree(stat.pwcsName);
 515             continue;
 516         }
 517
 518         TRACE("enumerated storage %s\n", debugstr_w(stat.pwcsName));
 519
 520         storage = create_storage(sv, stat.pwcsName, NULL);
 521         if (!storage)
 522         {
 523             count = -1;
 524             CoTaskMemFree(stat.pwcsName);
 525             break;
 526         }
 527
 528         IStorage_OpenStorage(sv->db->storage, stat.pwcsName, NULL,
 529                              STGM_READ | STGM_SHARE_EXCLUSIVE, NULL, 0,
 530                              &storage->storage);
 531         CoTaskMemFree(stat.pwcsName);
 532
 533         if (!storages_set_table_size(sv, ++count))
 534         {
 535             count = -1;
 536             break;
 537         }
 538
 539         sv->storages[count - 1] = storage;
 540     }
 541
 542     IEnumSTATSTG_Release(stgenum);
 543     return count;
 544 }
 545
 546 UINT STORAGES_CreateView(MSIDATABASE *db, MSIVIEW **view)
 547 {
 548     MSISTORAGESVIEW *sv;
 549     INT rows;
 550
 551     TRACE("(%p, %p)\n", db, view);
 552
 553     sv = msi_alloc(sizeof(MSISTORAGESVIEW));
 554     if (!sv)
 555         return ERROR_FUNCTION_FAILED;
 556
 557     sv->view.ops = &storages_ops;
 558     sv->db = db;
 559
 560     rows = add_storages_to_table(sv);
 561     if (rows < 0)
 562         return ERROR_FUNCTION_FAILED;
 563
 564     sv->num_rows = rows;
 565
 566     *view = (MSIVIEW *)sv;
 567
 568     return ERROR_SUCCESS;
 569 }