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msi: Don't leak memory on failure.
[wine.git] / dlls / msi / table.c
blob45a181445aaf4c54607957976a6f6500a26aec5e
1 /*
2 * Implementation of the Microsoft Installer (msi.dll)
3 *
4 * Copyright 2002-2005 Mike McCormack for CodeWeavers
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 #include <assert.h>
23
24 #define COBJMACROS
25
26 #include "windef.h"
27 #include "winbase.h"
28 #include "winerror.h"
29 #include "msi.h"
30 #include "msiquery.h"
31 #include "objbase.h"
32 #include "objidl.h"
33 #include "winnls.h"
34 #include "msipriv.h"
35 #include "query.h"
36
37 #include "wine/debug.h"
38 #include "wine/unicode.h"
39
40 WINE_DEFAULT_DEBUG_CHANNEL(msidb);
41
42 #define MSITABLE_HASH_TABLE_SIZE 37
43
44 typedef struct tagMSICOLUMNHASHENTRY
45 {
46 struct tagMSICOLUMNHASHENTRY *next;
47 UINT value;
48 UINT row;
49 } MSICOLUMNHASHENTRY;
50
51 typedef struct tagMSICOLUMNINFO
52 {
53 LPCWSTR tablename;
54 UINT number;
55 LPCWSTR colname;
56 UINT type;
57 UINT offset;
58 INT ref_count;
59 BOOL temporary;
60 MSICOLUMNHASHENTRY **hash_table;
61 } MSICOLUMNINFO;
62
63 struct tagMSITABLE
64 {
65 BYTE **data;
66 BOOL *data_persistent;
67 UINT row_count;
68 struct list entry;
69 MSICOLUMNINFO *colinfo;
70 UINT col_count;
71 MSICONDITION persistent;
72 INT ref_count;
73 WCHAR name[1];
74 };
75
76 /* information for default tables */
77 static const WCHAR szTables[] = {'_','T','a','b','l','e','s',0};
78 static const WCHAR szTable[] = {'T','a','b','l','e',0};
79 static const WCHAR szColumns[] = {'_','C','o','l','u','m','n','s',0};
80 static const WCHAR szNumber[] = {'N','u','m','b','e','r',0};
81 static const WCHAR szType[] = {'T','y','p','e',0};
82
83 static const MSICOLUMNINFO _Columns_cols[4] = {
84 { szColumns, 1, szTable, MSITYPE_VALID | MSITYPE_STRING | MSITYPE_KEY | 64, 0, 0, 0, NULL },
85 { szColumns, 2, szNumber, MSITYPE_VALID | MSITYPE_KEY | 2, 2, 0, 0, NULL },
86 { szColumns, 3, szName, MSITYPE_VALID | MSITYPE_STRING | 64, 4, 0, 0, NULL },
87 { szColumns, 4, szType, MSITYPE_VALID | 2, 6, 0, 0, NULL },
88 };
89
90 static const MSICOLUMNINFO _Tables_cols[1] = {
91 { szTables, 1, szName, MSITYPE_VALID | MSITYPE_STRING | MSITYPE_KEY | 64, 0, 0, 0, NULL },
92 };
93
94 #define MAX_STREAM_NAME 0x1f
95
96 static inline UINT bytes_per_column( MSIDATABASE *db, const MSICOLUMNINFO *col, UINT bytes_per_strref )
97 {
98 if( MSITYPE_IS_BINARY(col->type) )
99 return 2;
100
101 if( col->type & MSITYPE_STRING )
102 return bytes_per_strref;
103
104 if( (col->type & 0xff) <= 2)
105 return 2;
106
107 if( (col->type & 0xff) != 4 )
108 ERR("Invalid column size %u\n", col->type & 0xff);
109
110 return 4;
111 }
112
113 static int utf2mime(int x)
114 {
115 if( (x>='0') && (x<='9') )
116 return x-'0';
117 if( (x>='A') && (x<='Z') )
118 return x-'A'+10;
119 if( (x>='a') && (x<='z') )
120 return x-'a'+10+26;
121 if( x=='.' )
122 return 10+26+26;
123 if( x=='_' )
124 return 10+26+26+1;
125 return -1;
126 }
127
128 LPWSTR encode_streamname(BOOL bTable, LPCWSTR in)
129 {
130 DWORD count = MAX_STREAM_NAME;
131 DWORD ch, next;
132 LPWSTR out, p;
133
134 if( !bTable )
135 count = lstrlenW( in )+2;
136 if (!(out = msi_alloc( count*sizeof(WCHAR) ))) return NULL;
137 p = out;
138
139 if( bTable )
140 {
141 *p++ = 0x4840;
142 count --;
143 }
144 while( count -- )
145 {
146 ch = *in++;
147 if( !ch )
148 {
149 *p = ch;
150 return out;
151 }
152 if( ( ch < 0x80 ) && ( utf2mime(ch) >= 0 ) )
153 {
154 ch = utf2mime(ch) + 0x4800;
155 next = *in;
156 if( next && (next<0x80) )
157 {
158 next = utf2mime(next);
159 if( next != -1 )
160 {
161 next += 0x3ffffc0;
162 ch += (next<<6);
163 in++;
164 }
165 }
166 }
167 *p++ = ch;
168 }
169 ERR("Failed to encode stream name (%s)\n",debugstr_w(in));
170 msi_free( out );
171 return NULL;
172 }
173
174 static int mime2utf(int x)
175 {
176 if( x<10 )
177 return x + '0';
178 if( x<(10+26))
179 return x - 10 + 'A';
180 if( x<(10+26+26))
181 return x - 10 - 26 + 'a';
182 if( x == (10+26+26) )
183 return '.';
184 return '_';
185 }
186
187 BOOL decode_streamname(LPCWSTR in, LPWSTR out)
188 {
189 WCHAR ch;
190 DWORD count = 0;
191
192 while ( (ch = *in++) )
193 {
194 if( (ch >= 0x3800 ) && (ch < 0x4840 ) )
195 {
196 if( ch >= 0x4800 )
197 ch = mime2utf(ch-0x4800);
198 else
199 {
200 ch -= 0x3800;
201 *out++ = mime2utf(ch&0x3f);
202 count++;
203 ch = mime2utf((ch>>6)&0x3f);
204 }
205 }
206 *out++ = ch;
207 count++;
208 }
209 *out = 0;
210 return count;
211 }
212
213 void enum_stream_names( IStorage *stg )
214 {
215 IEnumSTATSTG *stgenum = NULL;
216 HRESULT r;
217 STATSTG stat;
218 ULONG n, count;
219 WCHAR name[0x40];
220
221 r = IStorage_EnumElements( stg, 0, NULL, 0, &stgenum );
222 if( FAILED( r ) )
223 return;
224
225 n = 0;
226 while( 1 )
227 {
228 count = 0;
229 r = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
230 if( FAILED( r ) || !count )
231 break;
232 decode_streamname( stat.pwcsName, name );
233 TRACE("stream %2d -> %s %s\n", n,
234 debugstr_w(stat.pwcsName), debugstr_w(name) );
235 CoTaskMemFree( stat.pwcsName );
236 n++;
237 }
238
239 IEnumSTATSTG_Release( stgenum );
240 }
241
242 UINT read_stream_data( IStorage *stg, LPCWSTR stname, BOOL table,
243 BYTE **pdata, UINT *psz )
244 {
245 HRESULT r;
246 UINT ret = ERROR_FUNCTION_FAILED;
247 VOID *data;
248 ULONG sz, count;
249 IStream *stm = NULL;
250 STATSTG stat;
251 LPWSTR encname;
252
253 encname = encode_streamname(table, stname);
254
255 TRACE("%s -> %s\n",debugstr_w(stname),debugstr_w(encname));
256
257 r = IStorage_OpenStream(stg, encname, NULL,
258 STGM_READ | STGM_SHARE_EXCLUSIVE, 0, &stm);
259 msi_free( encname );
260 if( FAILED( r ) )
261 {
262 WARN("open stream failed r = %08x - empty table?\n", r);
263 return ret;
264 }
265
266 r = IStream_Stat(stm, &stat, STATFLAG_NONAME );
267 if( FAILED( r ) )
268 {
269 WARN("open stream failed r = %08x!\n", r);
270 goto end;
271 }
272
273 if( stat.cbSize.QuadPart >> 32 )
274 {
275 WARN("Too big!\n");
276 goto end;
277 }
278
279 sz = stat.cbSize.QuadPart;
280 data = msi_alloc( sz );
281 if( !data )
282 {
283 WARN("couldn't allocate memory r=%08x!\n", r);
284 ret = ERROR_NOT_ENOUGH_MEMORY;
285 goto end;
286 }
287
288 r = IStream_Read(stm, data, sz, &count );
289 if( FAILED( r ) || ( count != sz ) )
290 {
291 msi_free( data );
292 WARN("read stream failed r = %08x!\n", r);
293 goto end;
294 }
295
296 *pdata = data;
297 *psz = sz;
298 ret = ERROR_SUCCESS;
299
300 end:
301 IStream_Release( stm );
302
303 return ret;
304 }
305
306 UINT write_stream_data( IStorage *stg, LPCWSTR stname,
307 LPCVOID data, UINT sz, BOOL bTable )
308 {
309 HRESULT r;
310 UINT ret = ERROR_FUNCTION_FAILED;
311 ULONG count;
312 IStream *stm = NULL;
313 ULARGE_INTEGER size;
314 LARGE_INTEGER pos;
315 LPWSTR encname;
316
317 encname = encode_streamname(bTable, stname );
318 r = IStorage_OpenStream( stg, encname, NULL,
319 STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, &stm);
320 if( FAILED(r) )
321 {
322 r = IStorage_CreateStream( stg, encname,
323 STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, 0, &stm);
324 }
325 msi_free( encname );
326 if( FAILED( r ) )
327 {
328 WARN("open stream failed r = %08x\n", r);
329 return ret;
330 }
331
332 size.QuadPart = sz;
333 r = IStream_SetSize( stm, size );
334 if( FAILED( r ) )
335 {
336 WARN("Failed to SetSize\n");
337 goto end;
338 }
339
340 pos.QuadPart = 0;
341 r = IStream_Seek( stm, pos, STREAM_SEEK_SET, NULL );
342 if( FAILED( r ) )
343 {
344 WARN("Failed to Seek\n");
345 goto end;
346 }
347
348 if (sz)
349 {
350 r = IStream_Write(stm, data, sz, &count );
351 if( FAILED( r ) || ( count != sz ) )
352 {
353 WARN("Failed to Write\n");
354 goto end;
355 }
356 }
357
358 ret = ERROR_SUCCESS;
359
360 end:
361 IStream_Release( stm );
362
363 return ret;
364 }
365
366 static void msi_free_colinfo( MSICOLUMNINFO *colinfo, UINT count )
367 {
368 UINT i;
369 for (i = 0; i < count; i++) msi_free( colinfo[i].hash_table );
370 }
371
372 static void free_table( MSITABLE *table )
373 {
374 UINT i;
375 for( i=0; i<table->row_count; i++ )
376 msi_free( table->data[i] );
377 msi_free( table->data );
378 msi_free( table->data_persistent );
379 msi_free_colinfo( table->colinfo, table->col_count );
380 msi_free( table->colinfo );
381 msi_free( table );
382 }
383
384 static UINT msi_table_get_row_size( MSIDATABASE *db, const MSICOLUMNINFO *cols, UINT count, UINT bytes_per_strref )
385 {
386 const MSICOLUMNINFO *last_col;
387
388 if (!count)
389 return 0;
390
391 if (bytes_per_strref != LONG_STR_BYTES)
392 {
393 UINT i, size = 0;
394 for (i = 0; i < count; i++) size += bytes_per_column( db, &cols[i], bytes_per_strref );
395 return size;
396 }
397 last_col = &cols[count - 1];
398 return last_col->offset + bytes_per_column( db, last_col, bytes_per_strref );
399 }
400
401 /* add this table to the list of cached tables in the database */
402 static UINT read_table_from_storage( MSIDATABASE *db, MSITABLE *t, IStorage *stg )
403 {
404 BYTE *rawdata = NULL;
405 UINT rawsize = 0, i, j, row_size, row_size_mem;
406
407 TRACE("%s\n",debugstr_w(t->name));
408
409 row_size = msi_table_get_row_size( db, t->colinfo, t->col_count, db->bytes_per_strref );
410 row_size_mem = msi_table_get_row_size( db, t->colinfo, t->col_count, LONG_STR_BYTES );
411
412 /* if we can't read the table, just assume that it's empty */
413 read_stream_data( stg, t->name, TRUE, &rawdata, &rawsize );
414 if( !rawdata )
415 return ERROR_SUCCESS;
416
417 TRACE("Read %d bytes\n", rawsize );
418
419 if( rawsize % row_size )
420 {
421 WARN("Table size is invalid %d/%d\n", rawsize, row_size );
422 goto err;
423 }
424
425 if ((t->row_count = rawsize / row_size))
426 {
427 if (!(t->data = msi_alloc_zero( t->row_count * sizeof(USHORT *) ))) goto err;
428 if (!(t->data_persistent = msi_alloc_zero( t->row_count * sizeof(BOOL) ))) goto err;
429 }
430
431 /* transpose all the data */
432 TRACE("Transposing data from %d rows\n", t->row_count );
433 for (i = 0; i < t->row_count; i++)
434 {
435 UINT ofs = 0, ofs_mem = 0;
436
437 t->data[i] = msi_alloc( row_size_mem );
438 if( !t->data[i] )
439 goto err;
440 t->data_persistent[i] = TRUE;
441
442 for (j = 0; j < t->col_count; j++)
443 {
444 UINT m = bytes_per_column( db, &t->colinfo[j], LONG_STR_BYTES );
445 UINT n = bytes_per_column( db, &t->colinfo[j], db->bytes_per_strref );
446 UINT k;
447
448 if ( n != 2 && n != 3 && n != 4 )
449 {
450 ERR("oops - unknown column width %d\n", n);
451 goto err;
452 }
453 if (t->colinfo[j].type & MSITYPE_STRING && n < m)
454 {
455 for (k = 0; k < m; k++)
456 {
457 if (k < n)
458 t->data[i][ofs_mem + k] = rawdata[ofs * t->row_count + i * n + k];
459 else
460 t->data[i][ofs_mem + k] = 0;
461 }
462 }
463 else
464 {
465 for (k = 0; k < n; k++)
466 t->data[i][ofs_mem + k] = rawdata[ofs * t->row_count + i * n + k];
467 }
468 ofs_mem += m;
469 ofs += n;
470 }
471 }
472
473 msi_free( rawdata );
474 return ERROR_SUCCESS;
475 err:
476 msi_free( rawdata );
477 return ERROR_FUNCTION_FAILED;
478 }
479
480 void free_cached_tables( MSIDATABASE *db )
481 {
482 while( !list_empty( &db->tables ) )
483 {
484 MSITABLE *t = LIST_ENTRY( list_head( &db->tables ), MSITABLE, entry );
485
486 list_remove( &t->entry );
487 free_table( t );
488 }
489 }
490
491 static MSITABLE *find_cached_table( MSIDATABASE *db, LPCWSTR name )
492 {
493 MSITABLE *t;
494
495 LIST_FOR_EACH_ENTRY( t, &db->tables, MSITABLE, entry )
496 if( !strcmpW( name, t->name ) )
497 return t;
498
499 return NULL;
500 }
501
502 static void table_calc_column_offsets( MSIDATABASE *db, MSICOLUMNINFO *colinfo, DWORD count )
503 {
504 DWORD i;
505
506 for (i = 0; colinfo && i < count; i++)
507 {
508 assert( i + 1 == colinfo[i].number );
509 if (i) colinfo[i].offset = colinfo[i - 1].offset +
510 bytes_per_column( db, &colinfo[i - 1], LONG_STR_BYTES );
511 else colinfo[i].offset = 0;
512
513 TRACE("column %d is [%s] with type %08x ofs %d\n",
514 colinfo[i].number, debugstr_w(colinfo[i].colname),
515 colinfo[i].type, colinfo[i].offset);
516 }
517 }
518
519 static UINT get_defaulttablecolumns( MSIDATABASE *db, LPCWSTR name, MSICOLUMNINFO *colinfo, UINT *sz )
520 {
521 const MSICOLUMNINFO *p;
522 DWORD i, n;
523
524 TRACE("%s\n", debugstr_w(name));
525
526 if (!strcmpW( name, szTables ))
527 {
528 p = _Tables_cols;
529 n = 1;
530 }
531 else if (!strcmpW( name, szColumns ))
532 {
533 p = _Columns_cols;
534 n = 4;
535 }
536 else return ERROR_FUNCTION_FAILED;
537
538 for (i = 0; i < n; i++)
539 {
540 if (colinfo && i < *sz) colinfo[i] = p[i];
541 if (colinfo && i >= *sz) break;
542 }
543 table_calc_column_offsets( db, colinfo, n );
544 *sz = n;
545 return ERROR_SUCCESS;
546 }
547
548 static UINT get_tablecolumns( MSIDATABASE *db, LPCWSTR szTableName, MSICOLUMNINFO *colinfo, UINT *sz );
549
550 static UINT table_get_column_info( MSIDATABASE *db, LPCWSTR name, MSICOLUMNINFO **pcols, UINT *pcount )
551 {
552 UINT r, column_count = 0;
553 MSICOLUMNINFO *columns;
554
555 /* get the number of columns in this table */
556 column_count = 0;
557 r = get_tablecolumns( db, name, NULL, &column_count );
558 if (r != ERROR_SUCCESS)
559 return r;
560
561 *pcount = column_count;
562
563 /* if there are no columns, there's no table */
564 if (!column_count)
565 return ERROR_INVALID_PARAMETER;
566
567 TRACE("table %s found\n", debugstr_w(name));
568
569 columns = msi_alloc( column_count * sizeof(MSICOLUMNINFO) );
570 if (!columns)
571 return ERROR_FUNCTION_FAILED;
572
573 r = get_tablecolumns( db, name, columns, &column_count );
574 if (r != ERROR_SUCCESS)
575 {
576 msi_free( columns );
577 return ERROR_FUNCTION_FAILED;
578 }
579 *pcols = columns;
580 return r;
581 }
582
583 static UINT get_table( MSIDATABASE *db, LPCWSTR name, MSITABLE **table_ret )
584 {
585 MSITABLE *table;
586 UINT r;
587
588 /* first, see if the table is cached */
589 table = find_cached_table( db, name );
590 if (table)
591 {
592 *table_ret = table;
593 return ERROR_SUCCESS;
594 }
595
596 /* nonexistent tables should be interpreted as empty tables */
597 table = msi_alloc( sizeof(MSITABLE) + lstrlenW( name ) * sizeof(WCHAR) );
598 if (!table)
599 return ERROR_FUNCTION_FAILED;
600
601 table->row_count = 0;
602 table->data = NULL;
603 table->data_persistent = NULL;
604 table->colinfo = NULL;
605 table->col_count = 0;
606 table->persistent = MSICONDITION_TRUE;
607 lstrcpyW( table->name, name );
608
609 if (!strcmpW( name, szTables ) || !strcmpW( name, szColumns ))
610 table->persistent = MSICONDITION_NONE;
611
612 r = table_get_column_info( db, name, &table->colinfo, &table->col_count );
613 if (r != ERROR_SUCCESS)
614 {
615 free_table( table );
616 return r;
617 }
618 r = read_table_from_storage( db, table, db->storage );
619 if (r != ERROR_SUCCESS)
620 {
621 free_table( table );
622 return r;
623 }
624 list_add_head( &db->tables, &table->entry );
625 *table_ret = table;
626 return ERROR_SUCCESS;
627 }
628
629 static UINT read_table_int( BYTE *const *data, UINT row, UINT col, UINT bytes )
630 {
631 UINT ret = 0, i;
632
633 for (i = 0; i < bytes; i++)
634 ret += data[row][col + i] << i * 8;
635
636 return ret;
637 }
638
639 static UINT get_tablecolumns( MSIDATABASE *db, LPCWSTR szTableName, MSICOLUMNINFO *colinfo, UINT *sz )
640 {
641 UINT r, i, n = 0, table_id, count, maxcount = *sz;
642 MSITABLE *table = NULL;
643
644 TRACE("%s\n", debugstr_w(szTableName));
645
646 /* first check if there is a default table with that name */
647 r = get_defaulttablecolumns( db, szTableName, colinfo, sz );
648 if (r == ERROR_SUCCESS && *sz)
649 return r;
650
651 r = get_table( db, szColumns, &table );
652 if (r != ERROR_SUCCESS)
653 {
654 ERR("couldn't load _Columns table\n");
655 return ERROR_FUNCTION_FAILED;
656 }
657
658 /* convert table and column names to IDs from the string table */
659 r = msi_string2id( db->strings, szTableName, -1, &table_id );
660 if (r != ERROR_SUCCESS)
661 {
662 WARN("Couldn't find id for %s\n", debugstr_w(szTableName));
663 return r;
664 }
665 TRACE("Table id is %d, row count is %d\n", table_id, table->row_count);
666
667 /* Note: _Columns table doesn't have non-persistent data */
668
669 /* if maxcount is non-zero, assume it's exactly right for this table */
670 if (colinfo) memset( colinfo, 0, maxcount * sizeof(*colinfo) );
671 count = table->row_count;
672 for (i = 0; i < count; i++)
673 {
674 if (read_table_int( table->data, i, 0, LONG_STR_BYTES) != table_id) continue;
675 if (colinfo)
676 {
677 UINT id = read_table_int( table->data, i, table->colinfo[2].offset, LONG_STR_BYTES );
678 UINT col = read_table_int( table->data, i, table->colinfo[1].offset, sizeof(USHORT) ) - (1 << 15);
679
680 /* check the column number is in range */
681 if (col < 1 || col > maxcount)
682 {
683 ERR("column %d out of range (maxcount: %d)\n", col, maxcount);
684 continue;
685 }
686 /* check if this column was already set */
687 if (colinfo[col - 1].number)
688 {
689 ERR("duplicate column %d\n", col);
690 continue;
691 }
692 colinfo[col - 1].tablename = msi_string_lookup( db->strings, table_id, NULL );
693 colinfo[col - 1].number = col;
694 colinfo[col - 1].colname = msi_string_lookup( db->strings, id, NULL );
695 colinfo[col - 1].type = read_table_int( table->data, i, table->colinfo[3].offset,
696 sizeof(USHORT) ) - (1 << 15);
697 colinfo[col - 1].offset = 0;
698 colinfo[col - 1].ref_count = 0;
699 colinfo[col - 1].hash_table = NULL;
700 }
701 n++;
702 }
703 TRACE("%s has %d columns\n", debugstr_w(szTableName), n);
704
705 if (colinfo && n != maxcount)
706 {
707 ERR("missing column in table %s\n", debugstr_w(szTableName));
708 msi_free_colinfo( colinfo, maxcount );
709 return ERROR_FUNCTION_FAILED;
710 }
711 table_calc_column_offsets( db, colinfo, n );
712 *sz = n;
713 return ERROR_SUCCESS;
714 }
715
716 UINT msi_create_table( MSIDATABASE *db, LPCWSTR name, column_info *col_info,
717 MSICONDITION persistent )
718 {
719 enum StringPersistence string_persistence = (persistent) ? StringPersistent : StringNonPersistent;
720 UINT r, nField;
721 MSIVIEW *tv = NULL;
722 MSIRECORD *rec = NULL;
723 column_info *col;
724 MSITABLE *table;
725 UINT i;
726
727 /* only add tables that don't exist already */
728 if( TABLE_Exists(db, name ) )
729 {
730 WARN("table %s exists\n", debugstr_w(name));
731 return ERROR_BAD_QUERY_SYNTAX;
732 }
733
734 table = msi_alloc( sizeof (MSITABLE) + lstrlenW(name)*sizeof (WCHAR) );
735 if( !table )
736 return ERROR_FUNCTION_FAILED;
737
738 table->ref_count = 1;
739 table->row_count = 0;
740 table->data = NULL;
741 table->data_persistent = NULL;
742 table->colinfo = NULL;
743 table->col_count = 0;
744 table->persistent = persistent;
745 lstrcpyW( table->name, name );
746
747 for( col = col_info; col; col = col->next )
748 table->col_count++;
749
750 table->colinfo = msi_alloc( table->col_count * sizeof(MSICOLUMNINFO) );
751 if (!table->colinfo)
752 {
753 free_table( table );
754 return ERROR_FUNCTION_FAILED;
755 }
756
757 for( i = 0, col = col_info; col; i++, col = col->next )
758 {
759 UINT table_id = msi_add_string( db->strings, col->table, -1, string_persistence );
760 UINT col_id = msi_add_string( db->strings, col->column, -1, string_persistence );
761
762 table->colinfo[ i ].tablename = msi_string_lookup( db->strings, table_id, NULL );
763 table->colinfo[ i ].number = i + 1;
764 table->colinfo[ i ].colname = msi_string_lookup( db->strings, col_id, NULL );
765 table->colinfo[ i ].type = col->type;
766 table->colinfo[ i ].offset = 0;
767 table->colinfo[ i ].ref_count = 0;
768 table->colinfo[ i ].hash_table = NULL;
769 table->colinfo[ i ].temporary = col->temporary;
770 }
771 table_calc_column_offsets( db, table->colinfo, table->col_count);
772
773 r = TABLE_CreateView( db, szTables, &tv );
774 TRACE("CreateView returned %x\n", r);
775 if( r )
776 {
777 free_table( table );
778 return r;
779 }
780
781 r = tv->ops->execute( tv, 0 );
782 TRACE("tv execute returned %x\n", r);
783 if( r )
784 goto err;
785
786 rec = MSI_CreateRecord( 1 );
787 if( !rec )
788 goto err;
789
790 r = MSI_RecordSetStringW( rec, 1, name );
791 if( r )
792 goto err;
793
794 r = tv->ops->insert_row( tv, rec, -1, persistent == MSICONDITION_FALSE );
795 TRACE("insert_row returned %x\n", r);
796 if( r )
797 goto err;
798
799 tv->ops->delete( tv );
800 tv = NULL;
801
802 msiobj_release( &rec->hdr );
803 rec = NULL;
804
805 if( persistent != MSICONDITION_FALSE )
806 {
807 /* add each column to the _Columns table */
808 r = TABLE_CreateView( db, szColumns, &tv );
809 if( r )
810 goto err;
811
812 r = tv->ops->execute( tv, 0 );
813 TRACE("tv execute returned %x\n", r);
814 if( r )
815 goto err;
816
817 rec = MSI_CreateRecord( 4 );
818 if( !rec )
819 goto err;
820
821 r = MSI_RecordSetStringW( rec, 1, name );
822 if( r )
823 goto err;
824
825 /*
826 * need to set the table, column number, col name and type
827 * for each column we enter in the table
828 */
829 nField = 1;
830 for( col = col_info; col; col = col->next )
831 {
832 r = MSI_RecordSetInteger( rec, 2, nField );
833 if( r )
834 goto err;
835
836 r = MSI_RecordSetStringW( rec, 3, col->column );
837 if( r )
838 goto err;
839
840 r = MSI_RecordSetInteger( rec, 4, col->type );
841 if( r )
842 goto err;
843
844 r = tv->ops->insert_row( tv, rec, -1, FALSE );
845 if( r )
846 goto err;
847
848 nField++;
849 }
850 if( !col )
851 r = ERROR_SUCCESS;
852 }
853
854 err:
855 if (rec)
856 msiobj_release( &rec->hdr );
857 /* FIXME: remove values from the string table on error */
858 if( tv )
859 tv->ops->delete( tv );
860
861 if (r == ERROR_SUCCESS)
862 list_add_head( &db->tables, &table->entry );
863 else
864 free_table( table );
865
866 return r;
867 }
868
869 static UINT save_table( MSIDATABASE *db, const MSITABLE *t, UINT bytes_per_strref )
870 {
871 BYTE *rawdata = NULL;
872 UINT rawsize, i, j, row_size, row_count;
873 UINT r = ERROR_FUNCTION_FAILED;
874
875 /* Nothing to do for non-persistent tables */
876 if( t->persistent == MSICONDITION_FALSE )
877 return ERROR_SUCCESS;
878
879 TRACE("Saving %s\n", debugstr_w( t->name ) );
880
881 row_size = msi_table_get_row_size( db, t->colinfo, t->col_count, bytes_per_strref );
882 row_count = t->row_count;
883 for (i = 0; i < t->row_count; i++)
884 {
885 if (!t->data_persistent[i])
886 {
887 row_count = 1; /* yes, this is bizarre */
888 break;
889 }
890 }
891 rawsize = row_count * row_size;
892 rawdata = msi_alloc_zero( rawsize );
893 if( !rawdata )
894 {
895 r = ERROR_NOT_ENOUGH_MEMORY;
896 goto err;
897 }
898
899 rawsize = 0;
900 for (i = 0; i < row_count; i++)
901 {
902 UINT ofs = 0, ofs_mem = 0;
903
904 if (!t->data_persistent[i]) break;
905
906 for (j = 0; j < t->col_count; j++)
907 {
908 UINT m = bytes_per_column( db, &t->colinfo[j], LONG_STR_BYTES );
909 UINT n = bytes_per_column( db, &t->colinfo[j], bytes_per_strref );
910 UINT k;
911
912 if (n != 2 && n != 3 && n != 4)
913 {
914 ERR("oops - unknown column width %d\n", n);
915 goto err;
916 }
917 if (t->colinfo[j].type & MSITYPE_STRING && n < m)
918 {
919 UINT id = read_table_int( t->data, i, ofs_mem, LONG_STR_BYTES );
920 if (id > 1 << bytes_per_strref * 8)
921 {
922 ERR("string id %u out of range\n", id);
923 goto err;
924 }
925 }
926 for (k = 0; k < n; k++)
927 {
928 rawdata[ofs * row_count + i * n + k] = t->data[i][ofs_mem + k];
929 }
930 ofs_mem += m;
931 ofs += n;
932 }
933 rawsize += row_size;
934 }
935
936 TRACE("writing %d bytes\n", rawsize);
937 r = write_stream_data( db->storage, t->name, rawdata, rawsize, TRUE );
938
939 err:
940 msi_free( rawdata );
941 return r;
942 }
943
944 static void msi_update_table_columns( MSIDATABASE *db, LPCWSTR name )
945 {
946 MSITABLE *table;
947 UINT size, offset, old_count;
948 UINT n;
949
950 if (!(table = find_cached_table( db, name ))) return;
951 old_count = table->col_count;
952 msi_free_colinfo( table->colinfo, table->col_count );
953 msi_free( table->colinfo );
954 table->colinfo = NULL;
955
956 table_get_column_info( db, name, &table->colinfo, &table->col_count );
957 if (!table->col_count) return;
958
959 size = msi_table_get_row_size( db, table->colinfo, table->col_count, LONG_STR_BYTES );
960 offset = table->colinfo[table->col_count - 1].offset;
961
962 for ( n = 0; n < table->row_count; n++ )
963 {
964 table->data[n] = msi_realloc( table->data[n], size );
965 if (old_count < table->col_count)
966 memset( &table->data[n][offset], 0, size - offset );
967 }
968 }
969
970 /* try to find the table name in the _Tables table */
971 BOOL TABLE_Exists( MSIDATABASE *db, LPCWSTR name )
972 {
973 UINT r, table_id, i;
974 MSITABLE *table;
975
976 if( !strcmpW( name, szTables ) || !strcmpW( name, szColumns ) ||
977 !strcmpW( name, szStreams ) || !strcmpW( name, szStorages ) )
978 return TRUE;
979
980 r = msi_string2id( db->strings, name, -1, &table_id );
981 if( r != ERROR_SUCCESS )
982 {
983 TRACE("Couldn't find id for %s\n", debugstr_w(name));
984 return FALSE;
985 }
986
987 r = get_table( db, szTables, &table );
988 if( r != ERROR_SUCCESS )
989 {
990 ERR("table %s not available\n", debugstr_w(szTables));
991 return FALSE;
992 }
993
994 for( i = 0; i < table->row_count; i++ )
995 {
996 if( read_table_int( table->data, i, 0, LONG_STR_BYTES ) == table_id )
997 return TRUE;
998 }
999
1000 return FALSE;
1001 }
1002
1003 /* below is the query interface to a table */
1004
1005 typedef struct tagMSITABLEVIEW
1006 {
1007 MSIVIEW view;
1008 MSIDATABASE *db;
1009 MSITABLE *table;
1010 MSICOLUMNINFO *columns;
1011 UINT num_cols;
1012 UINT row_size;
1013 WCHAR name[1];
1014 } MSITABLEVIEW;
1015
1016 static UINT TABLE_fetch_int( struct tagMSIVIEW *view, UINT row, UINT col, UINT *val )
1017 {
1018 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1019 UINT offset, n;
1020
1021 if( !tv->table )
1022 return ERROR_INVALID_PARAMETER;
1023
1024 if( (col==0) || (col>tv->num_cols) )
1025 return ERROR_INVALID_PARAMETER;
1026
1027 /* how many rows are there ? */
1028 if( row >= tv->table->row_count )
1029 return ERROR_NO_MORE_ITEMS;
1030
1031 if( tv->columns[col-1].offset >= tv->row_size )
1032 {
1033 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1034 ERR("%p %p\n", tv, tv->columns );
1035 return ERROR_FUNCTION_FAILED;
1036 }
1037
1038 n = bytes_per_column( tv->db, &tv->columns[col - 1], LONG_STR_BYTES );
1039 if (n != 2 && n != 3 && n != 4)
1040 {
1041 ERR("oops! what is %d bytes per column?\n", n );
1042 return ERROR_FUNCTION_FAILED;
1043 }
1044
1045 offset = tv->columns[col-1].offset;
1046 *val = read_table_int(tv->table->data, row, offset, n);
1047
1048 /* TRACE("Data [%d][%d] = %d\n", row, col, *val ); */
1049
1050 return ERROR_SUCCESS;
1051 }
1052
1053 static UINT get_stream_name( const MSITABLEVIEW *tv, UINT row, WCHAR **pstname )
1054 {
1055 LPWSTR p, stname = NULL;
1056 UINT i, r, type, ival;
1057 DWORD len;
1058 LPCWSTR sval;
1059 MSIVIEW *view = (MSIVIEW *) tv;
1060
1061 TRACE("%p %d\n", tv, row);
1062
1063 len = lstrlenW( tv->name ) + 1;
1064 stname = msi_alloc( len*sizeof(WCHAR) );
1065 if ( !stname )
1066 {
1067 r = ERROR_OUTOFMEMORY;
1068 goto err;
1069 }
1070
1071 lstrcpyW( stname, tv->name );
1072
1073 for ( i = 0; i < tv->num_cols; i++ )
1074 {
1075 type = tv->columns[i].type;
1076 if ( type & MSITYPE_KEY )
1077 {
1078 WCHAR number[0x20];
1079
1080 r = TABLE_fetch_int( view, row, i+1, &ival );
1081 if ( r != ERROR_SUCCESS )
1082 goto err;
1083
1084 if ( tv->columns[i].type & MSITYPE_STRING )
1085 {
1086 sval = msi_string_lookup( tv->db->strings, ival, NULL );
1087 if ( !sval )
1088 {
1089 r = ERROR_INVALID_PARAMETER;
1090 goto err;
1091 }
1092 }
1093 else
1094 {
1095 static const WCHAR fmt[] = { '%','d',0 };
1096 UINT n = bytes_per_column( tv->db, &tv->columns[i], LONG_STR_BYTES );
1097
1098 switch( n )
1099 {
1100 case 2:
1101 sprintfW( number, fmt, ival-0x8000 );
1102 break;
1103 case 4:
1104 sprintfW( number, fmt, ival^0x80000000 );
1105 break;
1106 default:
1107 ERR( "oops - unknown column width %d\n", n );
1108 r = ERROR_FUNCTION_FAILED;
1109 goto err;
1110 }
1111 sval = number;
1112 }
1113
1114 len += lstrlenW( szDot ) + lstrlenW( sval );
1115 p = msi_realloc ( stname, len*sizeof(WCHAR) );
1116 if ( !p )
1117 {
1118 r = ERROR_OUTOFMEMORY;
1119 goto err;
1120 }
1121 stname = p;
1122
1123 lstrcatW( stname, szDot );
1124 lstrcatW( stname, sval );
1125 }
1126 else
1127 continue;
1128 }
1129
1130 *pstname = stname;
1131 return ERROR_SUCCESS;
1132
1133 err:
1134 msi_free( stname );
1135 *pstname = NULL;
1136 return r;
1137 }
1138
1139 /*
1140 * We need a special case for streams, as we need to reference column with
1141 * the name of the stream in the same table, and the table name
1142 * which may not be available at higher levels of the query
1143 */
1144 static UINT TABLE_fetch_stream( struct tagMSIVIEW *view, UINT row, UINT col, IStream **stm )
1145 {
1146 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1147 UINT r;
1148 WCHAR *name;
1149
1150 if( !view->ops->fetch_int )
1151 return ERROR_INVALID_PARAMETER;
1152
1153 r = get_stream_name( tv, row, &name );
1154 if (r != ERROR_SUCCESS)
1155 {
1156 ERR("fetching stream, error = %u\n", r);
1157 return r;
1158 }
1159
1160 r = msi_get_stream( tv->db, name, stm );
1161 if (r != ERROR_SUCCESS)
1162 ERR("fetching stream %s, error = %u\n", debugstr_w(name), r);
1163
1164 msi_free( name );
1165 return r;
1166 }
1167
1168 static UINT TABLE_set_int( MSITABLEVIEW *tv, UINT row, UINT col, UINT val )
1169 {
1170 UINT offset, n, i;
1171
1172 if( !tv->table )
1173 return ERROR_INVALID_PARAMETER;
1174
1175 if( (col==0) || (col>tv->num_cols) )
1176 return ERROR_INVALID_PARAMETER;
1177
1178 if( row >= tv->table->row_count )
1179 return ERROR_INVALID_PARAMETER;
1180
1181 if( tv->columns[col-1].offset >= tv->row_size )
1182 {
1183 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1184 ERR("%p %p\n", tv, tv->columns );
1185 return ERROR_FUNCTION_FAILED;
1186 }
1187
1188 msi_free( tv->columns[col-1].hash_table );
1189 tv->columns[col-1].hash_table = NULL;
1190
1191 n = bytes_per_column( tv->db, &tv->columns[col - 1], LONG_STR_BYTES );
1192 if ( n != 2 && n != 3 && n != 4 )
1193 {
1194 ERR("oops! what is %d bytes per column?\n", n );
1195 return ERROR_FUNCTION_FAILED;
1196 }
1197
1198 offset = tv->columns[col-1].offset;
1199 for ( i = 0; i < n; i++ )
1200 tv->table->data[row][offset + i] = (val >> i * 8) & 0xff;
1201
1202 return ERROR_SUCCESS;
1203 }
1204
1205 static UINT TABLE_get_row( struct tagMSIVIEW *view, UINT row, MSIRECORD **rec )
1206 {
1207 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1208
1209 if (!tv->table)
1210 return ERROR_INVALID_PARAMETER;
1211
1212 return msi_view_get_row(tv->db, view, row, rec);
1213 }
1214
1215 static UINT add_stream( MSIDATABASE *db, const WCHAR *name, IStream *data )
1216 {
1217 static const WCHAR insert[] = {
1218 'I','N','S','E','R','T',' ','I','N','T','O',' ',
1219 '`','_','S','t','r','e','a','m','s','`',' ',
1220 '(','`','N','a','m','e','`',',','`','D','a','t','a','`',')',' ',
1221 'V','A','L','U','E','S',' ','(','?',',','?',')',0};
1222 static const WCHAR update[] = {
1223 'U','P','D','A','T','E',' ','`','_','S','t','r','e','a','m','s','`',' ',
1224 'S','E','T',' ','`','D','a','t','a','`',' ','=',' ','?',' ',
1225 'W','H','E','R','E',' ','`','N','a','m','e','`',' ','=',' ','?',0};
1226 MSIQUERY *query;
1227 MSIRECORD *rec;
1228 UINT r;
1229
1230 TRACE("%p %s %p\n", db, debugstr_w(name), data);
1231
1232 if (!(rec = MSI_CreateRecord( 2 )))
1233 return ERROR_OUTOFMEMORY;
1234
1235 r = MSI_RecordSetStringW( rec, 1, name );
1236 if (r != ERROR_SUCCESS)
1237 goto done;
1238
1239 r = MSI_RecordSetIStream( rec, 2, data );
1240 if (r != ERROR_SUCCESS)
1241 goto done;
1242
1243 r = MSI_DatabaseOpenViewW( db, insert, &query );
1244 if (r != ERROR_SUCCESS)
1245 goto done;
1246
1247 r = MSI_ViewExecute( query, rec );
1248 msiobj_release( &query->hdr );
1249 if (r == ERROR_SUCCESS)
1250 goto done;
1251
1252 msiobj_release( &rec->hdr );
1253 if (!(rec = MSI_CreateRecord( 2 )))
1254 return ERROR_OUTOFMEMORY;
1255
1256 r = MSI_RecordSetIStream( rec, 1, data );
1257 if (r != ERROR_SUCCESS)
1258 goto done;
1259
1260 r = MSI_RecordSetStringW( rec, 2, name );
1261 if (r != ERROR_SUCCESS)
1262 goto done;
1263
1264 r = MSI_DatabaseOpenViewW( db, update, &query );
1265 if (r != ERROR_SUCCESS)
1266 goto done;
1267
1268 r = MSI_ViewExecute( query, rec );
1269 msiobj_release( &query->hdr );
1270
1271 done:
1272 msiobj_release( &rec->hdr );
1273 return r;
1274 }
1275
1276 static UINT get_table_value_from_record( MSITABLEVIEW *tv, MSIRECORD *rec, UINT iField, UINT *pvalue )
1277 {
1278 MSICOLUMNINFO columninfo;
1279 UINT r;
1280 int ival;
1281
1282 if ( (iField <= 0) ||
1283 (iField > tv->num_cols) ||
1284 MSI_RecordIsNull( rec, iField ) )
1285 return ERROR_FUNCTION_FAILED;
1286
1287 columninfo = tv->columns[ iField - 1 ];
1288
1289 if ( MSITYPE_IS_BINARY(columninfo.type) )
1290 {
1291 *pvalue = 1; /* refers to the first key column */
1292 }
1293 else if ( columninfo.type & MSITYPE_STRING )
1294 {
1295 int len;
1296 const WCHAR *sval = msi_record_get_string( rec, iField, &len );
1297 if (sval)
1298 {
1299 r = msi_string2id( tv->db->strings, sval, len, pvalue );
1300 if (r != ERROR_SUCCESS)
1301 return ERROR_NOT_FOUND;
1302 }
1303 else *pvalue = 0;
1304 }
1305 else if ( bytes_per_column( tv->db, &columninfo, LONG_STR_BYTES ) == 2 )
1306 {
1307 ival = MSI_RecordGetInteger( rec, iField );
1308 if (ival == 0x80000000) *pvalue = 0x8000;
1309 else
1310 {
1311 *pvalue = 0x8000 + MSI_RecordGetInteger( rec, iField );
1312 if (*pvalue & 0xffff0000)
1313 {
1314 ERR("field %u value %d out of range\n", iField, *pvalue - 0x8000);
1315 return ERROR_FUNCTION_FAILED;
1316 }
1317 }
1318 }
1319 else
1320 {
1321 ival = MSI_RecordGetInteger( rec, iField );
1322 *pvalue = ival ^ 0x80000000;
1323 }
1324
1325 return ERROR_SUCCESS;
1326 }
1327
1328 static UINT TABLE_set_row( struct tagMSIVIEW *view, UINT row, MSIRECORD *rec, UINT mask )
1329 {
1330 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1331 UINT i, val, r = ERROR_SUCCESS;
1332
1333 if ( !tv->table )
1334 return ERROR_INVALID_PARAMETER;
1335
1336 /* test if any of the mask bits are invalid */
1337 if ( mask >= (1<<tv->num_cols) )
1338 return ERROR_INVALID_PARAMETER;
1339
1340 for ( i = 0; i < tv->num_cols; i++ )
1341 {
1342 BOOL persistent;
1343
1344 /* only update the fields specified in the mask */
1345 if ( !(mask&(1<<i)) )
1346 continue;
1347
1348 persistent = (tv->table->persistent != MSICONDITION_FALSE) &&
1349 (tv->table->data_persistent[row]);
1350 /* FIXME: should we allow updating keys? */
1351
1352 val = 0;
1353 if ( !MSI_RecordIsNull( rec, i + 1 ) )
1354 {
1355 r = get_table_value_from_record (tv, rec, i + 1, &val);
1356 if ( MSITYPE_IS_BINARY(tv->columns[ i ].type) )
1357 {
1358 IStream *stm;
1359 LPWSTR stname;
1360
1361 if ( r != ERROR_SUCCESS )
1362 return ERROR_FUNCTION_FAILED;
1363
1364 r = MSI_RecordGetIStream( rec, i + 1, &stm );
1365 if ( r != ERROR_SUCCESS )
1366 return r;
1367
1368 r = get_stream_name( tv, row, &stname );
1369 if ( r != ERROR_SUCCESS )
1370 {
1371 IStream_Release( stm );
1372 return r;
1373 }
1374
1375 r = add_stream( tv->db, stname, stm );
1376 IStream_Release( stm );
1377 msi_free ( stname );
1378
1379 if ( r != ERROR_SUCCESS )
1380 return r;
1381 }
1382 else if ( tv->columns[i].type & MSITYPE_STRING )
1383 {
1384 UINT x;
1385
1386 if ( r != ERROR_SUCCESS )
1387 {
1388 int len;
1389 const WCHAR *sval = msi_record_get_string( rec, i + 1, &len );
1390 val = msi_add_string( tv->db->strings, sval, len,
1391 persistent ? StringPersistent : StringNonPersistent );
1392 }
1393 else
1394 {
1395 TABLE_fetch_int(&tv->view, row, i + 1, &x);
1396 if (val == x)
1397 continue;
1398 }
1399 }
1400 else
1401 {
1402 if ( r != ERROR_SUCCESS )
1403 return ERROR_FUNCTION_FAILED;
1404 }
1405 }
1406
1407 r = TABLE_set_int( tv, row, i+1, val );
1408 if ( r != ERROR_SUCCESS )
1409 break;
1410 }
1411 return r;
1412 }
1413
1414 static UINT table_create_new_row( struct tagMSIVIEW *view, UINT *num, BOOL temporary )
1415 {
1416 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1417 BYTE **p, *row;
1418 BOOL *b;
1419 UINT sz;
1420 BYTE ***data_ptr;
1421 BOOL **data_persist_ptr;
1422 UINT *row_count;
1423
1424 TRACE("%p %s\n", view, temporary ? "TRUE" : "FALSE");
1425
1426 if( !tv->table )
1427 return ERROR_INVALID_PARAMETER;
1428
1429 row = msi_alloc_zero( tv->row_size );
1430 if( !row )
1431 return ERROR_NOT_ENOUGH_MEMORY;
1432
1433 row_count = &tv->table->row_count;
1434 data_ptr = &tv->table->data;
1435 data_persist_ptr = &tv->table->data_persistent;
1436 if (*num == -1)
1437 *num = tv->table->row_count;
1438
1439 sz = (*row_count + 1) * sizeof (BYTE*);
1440 if( *data_ptr )
1441 p = msi_realloc( *data_ptr, sz );
1442 else
1443 p = msi_alloc( sz );
1444 if( !p )
1445 {
1446 msi_free( row );
1447 return ERROR_NOT_ENOUGH_MEMORY;
1448 }
1449
1450 sz = (*row_count + 1) * sizeof (BOOL);
1451 if( *data_persist_ptr )
1452 b = msi_realloc( *data_persist_ptr, sz );
1453 else
1454 b = msi_alloc( sz );
1455 if( !b )
1456 {
1457 msi_free( row );
1458 msi_free( p );
1459 return ERROR_NOT_ENOUGH_MEMORY;
1460 }
1461
1462 *data_ptr = p;
1463 (*data_ptr)[*row_count] = row;
1464
1465 *data_persist_ptr = b;
1466 (*data_persist_ptr)[*row_count] = !temporary;
1467
1468 (*row_count)++;
1469
1470 return ERROR_SUCCESS;
1471 }
1472
1473 static UINT TABLE_execute( struct tagMSIVIEW *view, MSIRECORD *record )
1474 {
1475 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1476
1477 TRACE("%p %p\n", tv, record);
1478
1479 TRACE("There are %d columns\n", tv->num_cols );
1480
1481 return ERROR_SUCCESS;
1482 }
1483
1484 static UINT TABLE_close( struct tagMSIVIEW *view )
1485 {
1486 TRACE("%p\n", view );
1487
1488 return ERROR_SUCCESS;
1489 }
1490
1491 static UINT TABLE_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols)
1492 {
1493 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1494
1495 TRACE("%p %p %p\n", view, rows, cols );
1496
1497 if( cols )
1498 *cols = tv->num_cols;
1499 if( rows )
1500 {
1501 if( !tv->table )
1502 return ERROR_INVALID_PARAMETER;
1503 *rows = tv->table->row_count;
1504 }
1505
1506 return ERROR_SUCCESS;
1507 }
1508
1509 static UINT TABLE_get_column_info( struct tagMSIVIEW *view,
1510 UINT n, LPCWSTR *name, UINT *type, BOOL *temporary,
1511 LPCWSTR *table_name )
1512 {
1513 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1514
1515 TRACE("%p %d %p %p\n", tv, n, name, type );
1516
1517 if( ( n == 0 ) || ( n > tv->num_cols ) )
1518 return ERROR_INVALID_PARAMETER;
1519
1520 if( name )
1521 {
1522 *name = tv->columns[n-1].colname;
1523 if( !*name )
1524 return ERROR_FUNCTION_FAILED;
1525 }
1526
1527 if( table_name )
1528 {
1529 *table_name = tv->columns[n-1].tablename;
1530 if( !*table_name )
1531 return ERROR_FUNCTION_FAILED;
1532 }
1533
1534 if( type )
1535 *type = tv->columns[n-1].type;
1536
1537 if( temporary )
1538 *temporary = tv->columns[n-1].temporary;
1539
1540 return ERROR_SUCCESS;
1541 }
1542
1543 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row, UINT *column );
1544
1545 static UINT table_validate_new( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *column )
1546 {
1547 UINT r, row, i;
1548
1549 /* check there are no null values where they're not allowed */
1550 for( i = 0; i < tv->num_cols; i++ )
1551 {
1552 if ( tv->columns[i].type & MSITYPE_NULLABLE )
1553 continue;
1554
1555 if ( MSITYPE_IS_BINARY(tv->columns[i].type) )
1556 TRACE("skipping binary column\n");
1557 else if ( tv->columns[i].type & MSITYPE_STRING )
1558 {
1559 int len;
1560 const WCHAR *str = msi_record_get_string( rec, i+1, &len );
1561
1562 if (!str || (!str[0] && !len))
1563 {
1564 if (column) *column = i;
1565 return ERROR_INVALID_DATA;
1566 }
1567 }
1568 else
1569 {
1570 UINT n;
1571
1572 n = MSI_RecordGetInteger( rec, i+1 );
1573 if (n == MSI_NULL_INTEGER)
1574 {
1575 if (column) *column = i;
1576 return ERROR_INVALID_DATA;
1577 }
1578 }
1579 }
1580
1581 /* check there are no duplicate keys */
1582 r = msi_table_find_row( tv, rec, &row, column );
1583 if (r == ERROR_SUCCESS)
1584 return ERROR_FUNCTION_FAILED;
1585
1586 return ERROR_SUCCESS;
1587 }
1588
1589 static int compare_record( MSITABLEVIEW *tv, UINT row, MSIRECORD *rec )
1590 {
1591 UINT r, i, ivalue, x;
1592
1593 for (i = 0; i < tv->num_cols; i++ )
1594 {
1595 if (!(tv->columns[i].type & MSITYPE_KEY)) continue;
1596
1597 r = get_table_value_from_record( tv, rec, i + 1, &ivalue );
1598 if (r != ERROR_SUCCESS)
1599 return 1;
1600
1601 r = TABLE_fetch_int( &tv->view, row, i + 1, &x );
1602 if (r != ERROR_SUCCESS)
1603 {
1604 WARN("TABLE_fetch_int should not fail here %u\n", r);
1605 return -1;
1606 }
1607 if (ivalue > x)
1608 {
1609 return 1;
1610 }
1611 else if (ivalue == x)
1612 {
1613 if (i < tv->num_cols - 1) continue;
1614 return 0;
1615 }
1616 else
1617 return -1;
1618 }
1619 return 1;
1620 }
1621
1622 static int find_insert_index( MSITABLEVIEW *tv, MSIRECORD *rec )
1623 {
1624 int idx, c, low = 0, high = tv->table->row_count - 1;
1625
1626 TRACE("%p %p\n", tv, rec);
1627
1628 while (low <= high)
1629 {
1630 idx = (low + high) / 2;
1631 c = compare_record( tv, idx, rec );
1632
1633 if (c < 0)
1634 high = idx - 1;
1635 else if (c > 0)
1636 low = idx + 1;
1637 else
1638 {
1639 TRACE("found %u\n", idx);
1640 return idx;
1641 }
1642 }
1643 TRACE("found %u\n", high + 1);
1644 return high + 1;
1645 }
1646
1647 static UINT TABLE_insert_row( struct tagMSIVIEW *view, MSIRECORD *rec, UINT row, BOOL temporary )
1648 {
1649 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1650 UINT i, r;
1651
1652 TRACE("%p %p %s\n", tv, rec, temporary ? "TRUE" : "FALSE" );
1653
1654 /* check that the key is unique - can we find a matching row? */
1655 r = table_validate_new( tv, rec, NULL );
1656 if( r != ERROR_SUCCESS )
1657 return ERROR_FUNCTION_FAILED;
1658
1659 if (row == -1)
1660 row = find_insert_index( tv, rec );
1661
1662 r = table_create_new_row( view, &row, temporary );
1663 TRACE("insert_row returned %08x\n", r);
1664 if( r != ERROR_SUCCESS )
1665 return r;
1666
1667 /* shift the rows to make room for the new row */
1668 for (i = tv->table->row_count - 1; i > row; i--)
1669 {
1670 memmove(&(tv->table->data[i][0]),
1671 &(tv->table->data[i - 1][0]), tv->row_size);
1672 tv->table->data_persistent[i] = tv->table->data_persistent[i - 1];
1673 }
1674
1675 /* Re-set the persistence flag */
1676 tv->table->data_persistent[row] = !temporary;
1677 return TABLE_set_row( view, row, rec, (1<<tv->num_cols) - 1 );
1678 }
1679
1680 static UINT TABLE_delete_row( struct tagMSIVIEW *view, UINT row )
1681 {
1682 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1683 UINT r, num_rows, num_cols, i;
1684
1685 TRACE("%p %d\n", tv, row);
1686
1687 if ( !tv->table )
1688 return ERROR_INVALID_PARAMETER;
1689
1690 r = TABLE_get_dimensions( view, &num_rows, &num_cols );
1691 if ( r != ERROR_SUCCESS )
1692 return r;
1693
1694 if ( row >= num_rows )
1695 return ERROR_FUNCTION_FAILED;
1696
1697 num_rows = tv->table->row_count;
1698 tv->table->row_count--;
1699
1700 /* reset the hash tables */
1701 for (i = 0; i < tv->num_cols; i++)
1702 {
1703 msi_free( tv->columns[i].hash_table );
1704 tv->columns[i].hash_table = NULL;
1705 }
1706
1707 for (i = row + 1; i < num_rows; i++)
1708 {
1709 memcpy(tv->table->data[i - 1], tv->table->data[i], tv->row_size);
1710 tv->table->data_persistent[i - 1] = tv->table->data_persistent[i];
1711 }
1712
1713 msi_free(tv->table->data[num_rows - 1]);
1714
1715 return ERROR_SUCCESS;
1716 }
1717
1718 static UINT msi_table_update(struct tagMSIVIEW *view, MSIRECORD *rec, UINT row)
1719 {
1720 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1721 UINT r, new_row;
1722
1723 /* FIXME: MsiViewFetch should set rec index 0 to some ID that
1724 * sets the fetched record apart from other records
1725 */
1726
1727 if (!tv->table)
1728 return ERROR_INVALID_PARAMETER;
1729
1730 r = msi_table_find_row(tv, rec, &new_row, NULL);
1731 if (r != ERROR_SUCCESS)
1732 {
1733 ERR("can't find row to modify\n");
1734 return ERROR_FUNCTION_FAILED;
1735 }
1736
1737 /* the row cannot be changed */
1738 if (row != new_row + 1)
1739 return ERROR_FUNCTION_FAILED;
1740
1741 return TABLE_set_row(view, new_row, rec, (1 << tv->num_cols) - 1);
1742 }
1743
1744 static UINT msi_table_assign(struct tagMSIVIEW *view, MSIRECORD *rec)
1745 {
1746 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1747 UINT r, row;
1748
1749 if (!tv->table)
1750 return ERROR_INVALID_PARAMETER;
1751
1752 r = msi_table_find_row(tv, rec, &row, NULL);
1753 if (r == ERROR_SUCCESS)
1754 return TABLE_set_row(view, row, rec, (1 << tv->num_cols) - 1);
1755 else
1756 return TABLE_insert_row( view, rec, -1, FALSE );
1757 }
1758
1759 static UINT modify_delete_row( struct tagMSIVIEW *view, MSIRECORD *rec )
1760 {
1761 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1762 UINT row, r;
1763
1764 r = msi_table_find_row(tv, rec, &row, NULL);
1765 if (r != ERROR_SUCCESS)
1766 return r;
1767
1768 return TABLE_delete_row(view, row);
1769 }
1770
1771 static UINT msi_refresh_record( struct tagMSIVIEW *view, MSIRECORD *rec, UINT row )
1772 {
1773 MSIRECORD *curr;
1774 UINT r, i, count;
1775
1776 r = TABLE_get_row(view, row - 1, &curr);
1777 if (r != ERROR_SUCCESS)
1778 return r;
1779
1780 /* Close the original record */
1781 MSI_CloseRecord(&rec->hdr);
1782
1783 count = MSI_RecordGetFieldCount(rec);
1784 for (i = 0; i < count; i++)
1785 MSI_RecordCopyField(curr, i + 1, rec, i + 1);
1786
1787 msiobj_release(&curr->hdr);
1788 return ERROR_SUCCESS;
1789 }
1790
1791 static UINT TABLE_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode,
1792 MSIRECORD *rec, UINT row)
1793 {
1794 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1795 UINT r, frow, column;
1796
1797 TRACE("%p %d %p\n", view, eModifyMode, rec );
1798
1799 switch (eModifyMode)
1800 {
1801 case MSIMODIFY_DELETE:
1802 r = modify_delete_row( view, rec );
1803 break;
1804 case MSIMODIFY_VALIDATE_NEW:
1805 r = table_validate_new( tv, rec, &column );
1806 if (r != ERROR_SUCCESS)
1807 {
1808 tv->view.error = MSIDBERROR_DUPLICATEKEY;
1809 tv->view.error_column = tv->columns[column].colname;
1810 r = ERROR_INVALID_DATA;
1811 }
1812 break;
1813
1814 case MSIMODIFY_INSERT:
1815 r = table_validate_new( tv, rec, NULL );
1816 if (r != ERROR_SUCCESS)
1817 break;
1818 r = TABLE_insert_row( view, rec, -1, FALSE );
1819 break;
1820
1821 case MSIMODIFY_INSERT_TEMPORARY:
1822 r = table_validate_new( tv, rec, NULL );
1823 if (r != ERROR_SUCCESS)
1824 break;
1825 r = TABLE_insert_row( view, rec, -1, TRUE );
1826 break;
1827
1828 case MSIMODIFY_REFRESH:
1829 r = msi_refresh_record( view, rec, row );
1830 break;
1831
1832 case MSIMODIFY_UPDATE:
1833 r = msi_table_update( view, rec, row );
1834 break;
1835
1836 case MSIMODIFY_ASSIGN:
1837 r = msi_table_assign( view, rec );
1838 break;
1839
1840 case MSIMODIFY_MERGE:
1841 /* check row that matches this record */
1842 r = msi_table_find_row( tv, rec, &frow, &column );
1843 if (r != ERROR_SUCCESS)
1844 {
1845 r = table_validate_new( tv, rec, NULL );
1846 if (r == ERROR_SUCCESS)
1847 r = TABLE_insert_row( view, rec, -1, FALSE );
1848 }
1849 break;
1850
1851 case MSIMODIFY_REPLACE:
1852 case MSIMODIFY_VALIDATE:
1853 case MSIMODIFY_VALIDATE_FIELD:
1854 case MSIMODIFY_VALIDATE_DELETE:
1855 FIXME("%p %d %p - mode not implemented\n", view, eModifyMode, rec );
1856 r = ERROR_CALL_NOT_IMPLEMENTED;
1857 break;
1858
1859 default:
1860 r = ERROR_INVALID_DATA;
1861 }
1862
1863 return r;
1864 }
1865
1866 static UINT TABLE_delete( struct tagMSIVIEW *view )
1867 {
1868 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1869
1870 TRACE("%p\n", view );
1871
1872 tv->table = NULL;
1873 tv->columns = NULL;
1874
1875 msi_free( tv );
1876
1877 return ERROR_SUCCESS;
1878 }
1879
1880 static UINT TABLE_find_matching_rows( struct tagMSIVIEW *view, UINT col,
1881 UINT val, UINT *row, MSIITERHANDLE *handle )
1882 {
1883 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1884 const MSICOLUMNHASHENTRY *entry;
1885
1886 TRACE("%p, %d, %u, %p\n", view, col, val, *handle);
1887
1888 if( !tv->table )
1889 return ERROR_INVALID_PARAMETER;
1890
1891 if( (col==0) || (col > tv->num_cols) )
1892 return ERROR_INVALID_PARAMETER;
1893
1894 if( !tv->columns[col-1].hash_table )
1895 {
1896 UINT i;
1897 UINT num_rows = tv->table->row_count;
1898 MSICOLUMNHASHENTRY **hash_table;
1899 MSICOLUMNHASHENTRY *new_entry;
1900
1901 if( tv->columns[col-1].offset >= tv->row_size )
1902 {
1903 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1904 ERR("%p %p\n", tv, tv->columns );
1905 return ERROR_FUNCTION_FAILED;
1906 }
1907
1908 /* allocate contiguous memory for the table and its entries so we
1909 * don't have to do an expensive cleanup */
1910 hash_table = msi_alloc(MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*) +
1911 num_rows * sizeof(MSICOLUMNHASHENTRY));
1912 if (!hash_table)
1913 return ERROR_OUTOFMEMORY;
1914
1915 memset(hash_table, 0, MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*));
1916 tv->columns[col-1].hash_table = hash_table;
1917
1918 new_entry = (MSICOLUMNHASHENTRY *)(hash_table + MSITABLE_HASH_TABLE_SIZE);
1919
1920 for (i = 0; i < num_rows; i++, new_entry++)
1921 {
1922 UINT row_value;
1923
1924 if (view->ops->fetch_int( view, i, col, &row_value ) != ERROR_SUCCESS)
1925 continue;
1926
1927 new_entry->next = NULL;
1928 new_entry->value = row_value;
1929 new_entry->row = i;
1930 if (hash_table[row_value % MSITABLE_HASH_TABLE_SIZE])
1931 {
1932 MSICOLUMNHASHENTRY *prev_entry = hash_table[row_value % MSITABLE_HASH_TABLE_SIZE];
1933 while (prev_entry->next)
1934 prev_entry = prev_entry->next;
1935 prev_entry->next = new_entry;
1936 }
1937 else
1938 hash_table[row_value % MSITABLE_HASH_TABLE_SIZE] = new_entry;
1939 }
1940 }
1941
1942 if( !*handle )
1943 entry = tv->columns[col-1].hash_table[val % MSITABLE_HASH_TABLE_SIZE];
1944 else
1945 entry = (*handle)->next;
1946
1947 while (entry && entry->value != val)
1948 entry = entry->next;
1949
1950 *handle = entry;
1951 if (!entry)
1952 return ERROR_NO_MORE_ITEMS;
1953
1954 *row = entry->row;
1955
1956 return ERROR_SUCCESS;
1957 }
1958
1959 static UINT TABLE_add_ref(struct tagMSIVIEW *view)
1960 {
1961 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1962 UINT i;
1963
1964 TRACE("%p %d\n", view, tv->table->ref_count);
1965
1966 for (i = 0; i < tv->table->col_count; i++)
1967 {
1968 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
1969 InterlockedIncrement(&tv->table->colinfo[i].ref_count);
1970 }
1971
1972 return InterlockedIncrement(&tv->table->ref_count);
1973 }
1974
1975 static UINT TABLE_remove_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number)
1976 {
1977 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1978 MSIRECORD *rec = NULL;
1979 MSIVIEW *columns = NULL;
1980 UINT row, r;
1981
1982 rec = MSI_CreateRecord(2);
1983 if (!rec)
1984 return ERROR_OUTOFMEMORY;
1985
1986 MSI_RecordSetStringW(rec, 1, table);
1987 MSI_RecordSetInteger(rec, 2, number);
1988
1989 r = TABLE_CreateView(tv->db, szColumns, &columns);
1990 if (r != ERROR_SUCCESS)
1991 {
1992 msiobj_release(&rec->hdr);
1993 return r;
1994 }
1995
1996 r = msi_table_find_row((MSITABLEVIEW *)columns, rec, &row, NULL);
1997 if (r != ERROR_SUCCESS)
1998 goto done;
1999
2000 r = TABLE_delete_row(columns, row);
2001 if (r != ERROR_SUCCESS)
2002 goto done;
2003
2004 msi_update_table_columns(tv->db, table);
2005
2006 done:
2007 msiobj_release(&rec->hdr);
2008 columns->ops->delete(columns);
2009 return r;
2010 }
2011
2012 static UINT TABLE_release(struct tagMSIVIEW *view)
2013 {
2014 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
2015 INT ref = tv->table->ref_count;
2016 UINT i, r;
2017
2018 TRACE("%p %d\n", view, ref);
2019
2020 for (i = 0; i < tv->table->col_count; i++)
2021 {
2022 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
2023 {
2024 ref = InterlockedDecrement(&tv->table->colinfo[i].ref_count);
2025 if (ref == 0)
2026 {
2027 r = TABLE_remove_column(view, tv->table->colinfo[i].tablename,
2028 tv->table->colinfo[i].number);
2029 if (r != ERROR_SUCCESS)
2030 break;
2031 }
2032 }
2033 }
2034
2035 ref = InterlockedDecrement(&tv->table->ref_count);
2036 if (ref == 0)
2037 {
2038 if (!tv->table->row_count)
2039 {
2040 list_remove(&tv->table->entry);
2041 free_table(tv->table);
2042 TABLE_delete(view);
2043 }
2044 }
2045
2046 return ref;
2047 }
2048
2049 static UINT TABLE_add_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number,
2050 LPCWSTR column, UINT type, BOOL hold)
2051 {
2052 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
2053 MSITABLE *msitable;
2054 MSIRECORD *rec;
2055 UINT r, i;
2056
2057 rec = MSI_CreateRecord(4);
2058 if (!rec)
2059 return ERROR_OUTOFMEMORY;
2060
2061 MSI_RecordSetStringW(rec, 1, table);
2062 MSI_RecordSetInteger(rec, 2, number);
2063 MSI_RecordSetStringW(rec, 3, column);
2064 MSI_RecordSetInteger(rec, 4, type);
2065
2066 r = TABLE_insert_row(&tv->view, rec, -1, FALSE);
2067 if (r != ERROR_SUCCESS)
2068 goto done;
2069
2070 msi_update_table_columns(tv->db, table);
2071
2072 if (!hold)
2073 goto done;
2074
2075 msitable = find_cached_table(tv->db, table);
2076 for (i = 0; i < msitable->col_count; i++)
2077 {
2078 if (!strcmpW( msitable->colinfo[i].colname, column ))
2079 {
2080 InterlockedIncrement(&msitable->colinfo[i].ref_count);
2081 break;
2082 }
2083 }
2084
2085 done:
2086 msiobj_release(&rec->hdr);
2087 return r;
2088 }
2089
2090 static UINT TABLE_drop(struct tagMSIVIEW *view)
2091 {
2092 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
2093 MSIVIEW *tables = NULL;
2094 MSIRECORD *rec = NULL;
2095 UINT r, row;
2096 INT i;
2097
2098 TRACE("dropping table %s\n", debugstr_w(tv->name));
2099
2100 for (i = tv->table->col_count - 1; i >= 0; i--)
2101 {
2102 r = TABLE_remove_column(view, tv->table->colinfo[i].tablename,
2103 tv->table->colinfo[i].number);
2104 if (r != ERROR_SUCCESS)
2105 return r;
2106 }
2107
2108 rec = MSI_CreateRecord(1);
2109 if (!rec)
2110 return ERROR_OUTOFMEMORY;
2111
2112 MSI_RecordSetStringW(rec, 1, tv->name);
2113
2114 r = TABLE_CreateView(tv->db, szTables, &tables);
2115 if (r != ERROR_SUCCESS)
2116 {
2117 msiobj_release(&rec->hdr);
2118 return r;
2119 }
2120
2121 r = msi_table_find_row((MSITABLEVIEW *)tables, rec, &row, NULL);
2122 if (r != ERROR_SUCCESS)
2123 goto done;
2124
2125 r = TABLE_delete_row(tables, row);
2126 if (r != ERROR_SUCCESS)
2127 goto done;
2128
2129 list_remove(&tv->table->entry);
2130 free_table(tv->table);
2131
2132 done:
2133 msiobj_release(&rec->hdr);
2134 tables->ops->delete(tables);
2135
2136 return r;
2137 }
2138
2139 static const MSIVIEWOPS table_ops =
2140 {
2141 TABLE_fetch_int,
2142 TABLE_fetch_stream,
2143 TABLE_get_row,
2144 TABLE_set_row,
2145 TABLE_insert_row,
2146 TABLE_delete_row,
2147 TABLE_execute,
2148 TABLE_close,
2149 TABLE_get_dimensions,
2150 TABLE_get_column_info,
2151 TABLE_modify,
2152 TABLE_delete,
2153 TABLE_find_matching_rows,
2154 TABLE_add_ref,
2155 TABLE_release,
2156 TABLE_add_column,
2157 TABLE_remove_column,
2158 NULL,
2159 TABLE_drop,
2160 };
2161
2162 UINT TABLE_CreateView( MSIDATABASE *db, LPCWSTR name, MSIVIEW **view )
2163 {
2164 MSITABLEVIEW *tv ;
2165 UINT r, sz;
2166
2167 TRACE("%p %s %p\n", db, debugstr_w(name), view );
2168
2169 if ( !strcmpW( name, szStreams ) )
2170 return STREAMS_CreateView( db, view );
2171 else if ( !strcmpW( name, szStorages ) )
2172 return STORAGES_CreateView( db, view );
2173
2174 sz = FIELD_OFFSET( MSITABLEVIEW, name[lstrlenW( name ) + 1] );
2175 tv = msi_alloc_zero( sz );
2176 if( !tv )
2177 return ERROR_FUNCTION_FAILED;
2178
2179 r = get_table( db, name, &tv->table );
2180 if( r != ERROR_SUCCESS )
2181 {
2182 msi_free( tv );
2183 WARN("table not found\n");
2184 return r;
2185 }
2186
2187 TRACE("table %p found with %d columns\n", tv->table, tv->table->col_count);
2188
2189 /* fill the structure */
2190 tv->view.ops = &table_ops;
2191 tv->db = db;
2192 tv->columns = tv->table->colinfo;
2193 tv->num_cols = tv->table->col_count;
2194 tv->row_size = msi_table_get_row_size( db, tv->table->colinfo, tv->table->col_count, LONG_STR_BYTES );
2195
2196 TRACE("%s one row is %d bytes\n", debugstr_w(name), tv->row_size );
2197
2198 *view = (MSIVIEW*) tv;
2199 lstrcpyW( tv->name, name );
2200
2201 return ERROR_SUCCESS;
2202 }
2203
2204 UINT MSI_CommitTables( MSIDATABASE *db )
2205 {
2206 UINT r, bytes_per_strref;
2207 HRESULT hr;
2208 MSITABLE *table = NULL;
2209
2210 TRACE("%p\n",db);
2211
2212 r = msi_save_string_table( db->strings, db->storage, &bytes_per_strref );
2213 if( r != ERROR_SUCCESS )
2214 {
2215 WARN("failed to save string table r=%08x\n",r);
2216 return r;
2217 }
2218
2219 LIST_FOR_EACH_ENTRY( table, &db->tables, MSITABLE, entry )
2220 {
2221 r = save_table( db, table, bytes_per_strref );
2222 if( r != ERROR_SUCCESS )
2223 {
2224 WARN("failed to save table %s (r=%08x)\n",
2225 debugstr_w(table->name), r);
2226 return r;
2227 }
2228 }
2229
2230 hr = IStorage_Commit( db->storage, 0 );
2231 if (FAILED( hr ))
2232 {
2233 WARN("failed to commit changes 0x%08x\n", hr);
2234 r = ERROR_FUNCTION_FAILED;
2235 }
2236 return r;
2237 }
2238
2239 MSICONDITION MSI_DatabaseIsTablePersistent( MSIDATABASE *db, LPCWSTR table )
2240 {
2241 MSITABLE *t;
2242 UINT r;
2243
2244 TRACE("%p %s\n", db, debugstr_w(table));
2245
2246 if (!table)
2247 return MSICONDITION_ERROR;
2248
2249 r = get_table( db, table, &t );
2250 if (r != ERROR_SUCCESS)
2251 return MSICONDITION_NONE;
2252
2253 return t->persistent;
2254 }
2255
2256 static UINT read_raw_int(const BYTE *data, UINT col, UINT bytes)
2257 {
2258 UINT ret = 0, i;
2259
2260 for (i = 0; i < bytes; i++)
2261 ret += (data[col + i] << i * 8);
2262
2263 return ret;
2264 }
2265
2266 static UINT msi_record_encoded_stream_name( const MSITABLEVIEW *tv, MSIRECORD *rec, LPWSTR *pstname )
2267 {
2268 LPWSTR stname = NULL, sval, p;
2269 DWORD len;
2270 UINT i, r;
2271
2272 TRACE("%p %p\n", tv, rec);
2273
2274 len = lstrlenW( tv->name ) + 1;
2275 stname = msi_alloc( len*sizeof(WCHAR) );
2276 if ( !stname )
2277 {
2278 r = ERROR_OUTOFMEMORY;
2279 goto err;
2280 }
2281
2282 lstrcpyW( stname, tv->name );
2283
2284 for ( i = 0; i < tv->num_cols; i++ )
2285 {
2286 if ( tv->columns[i].type & MSITYPE_KEY )
2287 {
2288 sval = msi_dup_record_field( rec, i + 1 );
2289 if ( !sval )
2290 {
2291 r = ERROR_OUTOFMEMORY;
2292 goto err;
2293 }
2294
2295 len += lstrlenW( szDot ) + lstrlenW ( sval );
2296 p = msi_realloc ( stname, len*sizeof(WCHAR) );
2297 if ( !p )
2298 {
2299 r = ERROR_OUTOFMEMORY;
2300 msi_free(sval);
2301 goto err;
2302 }
2303 stname = p;
2304
2305 lstrcatW( stname, szDot );
2306 lstrcatW( stname, sval );
2307
2308 msi_free( sval );
2309 }
2310 else
2311 continue;
2312 }
2313
2314 *pstname = encode_streamname( FALSE, stname );
2315 msi_free( stname );
2316
2317 return ERROR_SUCCESS;
2318
2319 err:
2320 msi_free ( stname );
2321 *pstname = NULL;
2322 return r;
2323 }
2324
2325 static MSIRECORD *msi_get_transform_record( const MSITABLEVIEW *tv, const string_table *st,
2326 IStorage *stg, const BYTE *rawdata, UINT bytes_per_strref )
2327 {
2328 UINT i, val, ofs = 0;
2329 USHORT mask;
2330 MSICOLUMNINFO *columns = tv->columns;
2331 MSIRECORD *rec;
2332
2333 mask = rawdata[0] | (rawdata[1] << 8);
2334 rawdata += 2;
2335
2336 rec = MSI_CreateRecord( tv->num_cols );
2337 if( !rec )
2338 return rec;
2339
2340 TRACE("row ->\n");
2341 for( i=0; i<tv->num_cols; i++ )
2342 {
2343 if ( (mask&1) && (i>=(mask>>8)) )
2344 break;
2345 /* all keys must be present */
2346 if ( (~mask&1) && (~columns[i].type & MSITYPE_KEY) && ((1<<i) & ~mask) )
2347 continue;
2348
2349 if( MSITYPE_IS_BINARY(tv->columns[i].type) )
2350 {
2351 LPWSTR encname;
2352 IStream *stm = NULL;
2353 UINT r;
2354
2355 ofs += bytes_per_column( tv->db, &columns[i], bytes_per_strref );
2356
2357 r = msi_record_encoded_stream_name( tv, rec, &encname );
2358 if ( r != ERROR_SUCCESS )
2359 {
2360 msiobj_release( &rec->hdr );
2361 return NULL;
2362 }
2363 r = IStorage_OpenStream( stg, encname, NULL, STGM_READ | STGM_SHARE_EXCLUSIVE, 0, &stm );
2364 if ( r != ERROR_SUCCESS )
2365 {
2366 msiobj_release( &rec->hdr );
2367 msi_free( encname );
2368 return NULL;
2369 }
2370
2371 MSI_RecordSetStream( rec, i+1, stm );
2372 TRACE(" field %d [%s]\n", i+1, debugstr_w(encname));
2373 msi_free( encname );
2374 }
2375 else if( columns[i].type & MSITYPE_STRING )
2376 {
2377 int len;
2378 const WCHAR *sval;
2379
2380 val = read_raw_int(rawdata, ofs, bytes_per_strref);
2381 sval = msi_string_lookup( st, val, &len );
2382 msi_record_set_string( rec, i+1, sval, len );
2383 TRACE(" field %d [%s]\n", i+1, debugstr_wn(sval, len));
2384 ofs += bytes_per_strref;
2385 }
2386 else
2387 {
2388 UINT n = bytes_per_column( tv->db, &columns[i], bytes_per_strref );
2389 switch( n )
2390 {
2391 case 2:
2392 val = read_raw_int(rawdata, ofs, n);
2393 if (val)
2394 MSI_RecordSetInteger( rec, i+1, val-0x8000 );
2395 TRACE(" field %d [0x%04x]\n", i+1, val );
2396 break;
2397 case 4:
2398 val = read_raw_int(rawdata, ofs, n);
2399 if (val)
2400 MSI_RecordSetInteger( rec, i+1, val^0x80000000 );
2401 TRACE(" field %d [0x%08x]\n", i+1, val );
2402 break;
2403 default:
2404 ERR("oops - unknown column width %d\n", n);
2405 break;
2406 }
2407 ofs += n;
2408 }
2409 }
2410 return rec;
2411 }
2412
2413 static void dump_table( const string_table *st, const USHORT *rawdata, UINT rawsize )
2414 {
2415 UINT i;
2416 for (i = 0; i < rawsize / 2; i++)
2417 {
2418 int len;
2419 const WCHAR *sval = msi_string_lookup( st, rawdata[i], &len );
2420 MESSAGE(" %04x %s\n", rawdata[i], debugstr_wn(sval, len) );
2421 }
2422 }
2423
2424 static UINT* msi_record_to_row( const MSITABLEVIEW *tv, MSIRECORD *rec )
2425 {
2426 UINT i, r, *data;
2427
2428 data = msi_alloc( tv->num_cols *sizeof (UINT) );
2429 for( i=0; i<tv->num_cols; i++ )
2430 {
2431 data[i] = 0;
2432
2433 if ( ~tv->columns[i].type & MSITYPE_KEY )
2434 continue;
2435
2436 /* turn the transform column value into a row value */
2437 if ( ( tv->columns[i].type & MSITYPE_STRING ) &&
2438 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2439 {
2440 int len;
2441 const WCHAR *str = msi_record_get_string( rec, i+1, &len );
2442 if (str)
2443 {
2444 r = msi_string2id( tv->db->strings, str, len, &data[i] );
2445
2446 /* if there's no matching string in the string table,
2447 these keys can't match any record, so fail now. */
2448 if (r != ERROR_SUCCESS)
2449 {
2450 msi_free( data );
2451 return NULL;
2452 }
2453 }
2454 else data[i] = 0;
2455 }
2456 else
2457 {
2458 data[i] = MSI_RecordGetInteger( rec, i+1 );
2459
2460 if (data[i] == MSI_NULL_INTEGER)
2461 data[i] = 0;
2462 else if ((tv->columns[i].type&0xff) == 2)
2463 data[i] += 0x8000;
2464 else
2465 data[i] += 0x80000000;
2466 }
2467 }
2468 return data;
2469 }
2470
2471 static UINT msi_row_matches( MSITABLEVIEW *tv, UINT row, const UINT *data, UINT *column )
2472 {
2473 UINT i, r, x, ret = ERROR_FUNCTION_FAILED;
2474
2475 for( i=0; i<tv->num_cols; i++ )
2476 {
2477 if ( ~tv->columns[i].type & MSITYPE_KEY )
2478 continue;
2479
2480 /* turn the transform column value into a row value */
2481 r = TABLE_fetch_int( &tv->view, row, i+1, &x );
2482 if ( r != ERROR_SUCCESS )
2483 {
2484 ERR("TABLE_fetch_int shouldn't fail here\n");
2485 break;
2486 }
2487
2488 /* if this key matches, move to the next column */
2489 if ( x != data[i] )
2490 {
2491 ret = ERROR_FUNCTION_FAILED;
2492 break;
2493 }
2494 if (column) *column = i;
2495 ret = ERROR_SUCCESS;
2496 }
2497 return ret;
2498 }
2499
2500 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row, UINT *column )
2501 {
2502 UINT i, r = ERROR_FUNCTION_FAILED, *data;
2503
2504 data = msi_record_to_row( tv, rec );
2505 if( !data )
2506 return r;
2507 for( i = 0; i < tv->table->row_count; i++ )
2508 {
2509 r = msi_row_matches( tv, i, data, column );
2510 if( r == ERROR_SUCCESS )
2511 {
2512 *row = i;
2513 break;
2514 }
2515 }
2516 msi_free( data );
2517 return r;
2518 }
2519
2520 typedef struct
2521 {
2522 struct list entry;
2523 LPWSTR name;
2524 } TRANSFORMDATA;
2525
2526 static UINT msi_table_load_transform( MSIDATABASE *db, IStorage *stg,
2527 string_table *st, TRANSFORMDATA *transform,
2528 UINT bytes_per_strref )
2529 {
2530 BYTE *rawdata = NULL;
2531 MSITABLEVIEW *tv = NULL;
2532 UINT r, n, sz, i, mask, num_cols, colcol = 0, rawsize = 0;
2533 MSIRECORD *rec = NULL;
2534 WCHAR coltable[32];
2535 const WCHAR *name;
2536
2537 if (!transform)
2538 return ERROR_SUCCESS;
2539
2540 name = transform->name;
2541
2542 coltable[0] = 0;
2543 TRACE("%p %p %p %s\n", db, stg, st, debugstr_w(name) );
2544
2545 /* read the transform data */
2546 read_stream_data( stg, name, TRUE, &rawdata, &rawsize );
2547 if ( !rawdata )
2548 {
2549 TRACE("table %s empty\n", debugstr_w(name) );
2550 return ERROR_INVALID_TABLE;
2551 }
2552
2553 /* create a table view */
2554 r = TABLE_CreateView( db, name, (MSIVIEW**) &tv );
2555 if( r != ERROR_SUCCESS )
2556 goto err;
2557
2558 r = tv->view.ops->execute( &tv->view, NULL );
2559 if( r != ERROR_SUCCESS )
2560 goto err;
2561
2562 TRACE("name = %s columns = %u row_size = %u raw size = %u\n",
2563 debugstr_w(name), tv->num_cols, tv->row_size, rawsize );
2564
2565 /* interpret the data */
2566 for (n = 0; n < rawsize;)
2567 {
2568 mask = rawdata[n] | (rawdata[n + 1] << 8);
2569 if (mask & 1)
2570 {
2571 /*
2572 * if the low bit is set, columns are continuous and
2573 * the number of columns is specified in the high byte
2574 */
2575 sz = 2;
2576 num_cols = mask >> 8;
2577 if (num_cols > tv->num_cols)
2578 {
2579 ERR("excess columns in transform: %u > %u\n", num_cols, tv->num_cols);
2580 break;
2581 }
2582
2583 for (i = 0; i < num_cols; i++)
2584 {
2585 if( (tv->columns[i].type & MSITYPE_STRING) &&
2586 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2587 sz += bytes_per_strref;
2588 else
2589 sz += bytes_per_column( tv->db, &tv->columns[i], bytes_per_strref );
2590 }
2591 }
2592 else
2593 {
2594 /*
2595 * If the low bit is not set, mask is a bitmask.
2596 * Excepting for key fields, which are always present,
2597 * each bit indicates that a field is present in the transform record.
2598 *
2599 * mask == 0 is a special case ... only the keys will be present
2600 * and it means that this row should be deleted.
2601 */
2602 sz = 2;
2603 num_cols = tv->num_cols;
2604 for (i = 0; i < num_cols; i++)
2605 {
2606 if ((tv->columns[i].type & MSITYPE_KEY) || ((1 << i) & mask))
2607 {
2608 if ((tv->columns[i].type & MSITYPE_STRING) &&
2609 !MSITYPE_IS_BINARY(tv->columns[i].type))
2610 sz += bytes_per_strref;
2611 else
2612 sz += bytes_per_column( tv->db, &tv->columns[i], bytes_per_strref );
2613 }
2614 }
2615 }
2616
2617 /* check we didn't run of the end of the table */
2618 if (n + sz > rawsize)
2619 {
2620 ERR("borked.\n");
2621 dump_table( st, (USHORT *)rawdata, rawsize );
2622 break;
2623 }
2624
2625 rec = msi_get_transform_record( tv, st, stg, &rawdata[n], bytes_per_strref );
2626 if (rec)
2627 {
2628 WCHAR table[32];
2629 DWORD sz = 32;
2630 UINT number = MSI_NULL_INTEGER;
2631 UINT row = 0;
2632
2633 if (!strcmpW( name, szColumns ))
2634 {
2635 MSI_RecordGetStringW( rec, 1, table, &sz );
2636 number = MSI_RecordGetInteger( rec, 2 );
2637
2638 /*
2639 * Native msi seems writes nul into the Number (2nd) column of
2640 * the _Columns table when there are new columns
2641 */
2642 if ( number == MSI_NULL_INTEGER )
2643 {
2644 /* reset the column number on a new table */
2645 if (strcmpW( coltable, table ))
2646 {
2647 colcol = 0;
2648 lstrcpyW( coltable, table );
2649 }
2650
2651 /* fix nul column numbers */
2652 MSI_RecordSetInteger( rec, 2, ++colcol );
2653 }
2654 }
2655
2656 if (TRACE_ON(msidb)) dump_record( rec );
2657
2658 r = msi_table_find_row( tv, rec, &row, NULL );
2659 if (r == ERROR_SUCCESS)
2660 {
2661 if (!mask)
2662 {
2663 TRACE("deleting row [%d]:\n", row);
2664 r = TABLE_delete_row( &tv->view, row );
2665 if (r != ERROR_SUCCESS)
2666 WARN("failed to delete row %u\n", r);
2667 }
2668 else if (mask & 1)
2669 {
2670 TRACE("modifying full row [%d]:\n", row);
2671 r = TABLE_set_row( &tv->view, row, rec, (1 << tv->num_cols) - 1 );
2672 if (r != ERROR_SUCCESS)
2673 WARN("failed to modify row %u\n", r);
2674 }
2675 else
2676 {
2677 TRACE("modifying masked row [%d]:\n", row);
2678 r = TABLE_set_row( &tv->view, row, rec, mask );
2679 if (r != ERROR_SUCCESS)
2680 WARN("failed to modify row %u\n", r);
2681 }
2682 }
2683 else
2684 {
2685 TRACE("inserting row\n");
2686 r = TABLE_insert_row( &tv->view, rec, -1, FALSE );
2687 if (r != ERROR_SUCCESS)
2688 WARN("failed to insert row %u\n", r);
2689 }
2690
2691 if (!strcmpW( name, szColumns ))
2692 msi_update_table_columns( db, table );
2693
2694 msiobj_release( &rec->hdr );
2695 }
2696
2697 n += sz;
2698 }
2699
2700 err:
2701 /* no need to free the table, it's associated with the database */
2702 msi_free( rawdata );
2703 if( tv )
2704 tv->view.ops->delete( &tv->view );
2705
2706 return ERROR_SUCCESS;
2707 }
2708
2709 /*
2710 * msi_table_apply_transform
2711 *
2712 * Enumerate the table transforms in a transform storage and apply each one.
2713 */
2714 UINT msi_table_apply_transform( MSIDATABASE *db, IStorage *stg )
2715 {
2716 struct list transforms;
2717 IEnumSTATSTG *stgenum = NULL;
2718 TRANSFORMDATA *transform;
2719 TRANSFORMDATA *tables = NULL, *columns = NULL;
2720 HRESULT hr;
2721 STATSTG stat;
2722 string_table *strings;
2723 UINT ret = ERROR_FUNCTION_FAILED;
2724 UINT bytes_per_strref;
2725 BOOL property_update = FALSE;
2726
2727 TRACE("%p %p\n", db, stg );
2728
2729 strings = msi_load_string_table( stg, &bytes_per_strref );
2730 if( !strings )
2731 goto end;
2732
2733 hr = IStorage_EnumElements( stg, 0, NULL, 0, &stgenum );
2734 if (FAILED( hr ))
2735 goto end;
2736
2737 list_init(&transforms);
2738
2739 while ( TRUE )
2740 {
2741 MSITABLEVIEW *tv = NULL;
2742 WCHAR name[0x40];
2743 ULONG count = 0;
2744
2745 hr = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
2746 if (FAILED( hr ) || !count)
2747 break;
2748
2749 decode_streamname( stat.pwcsName, name );
2750 CoTaskMemFree( stat.pwcsName );
2751 if ( name[0] != 0x4840 )
2752 continue;
2753
2754 if ( !strcmpW( name+1, szStringPool ) ||
2755 !strcmpW( name+1, szStringData ) )
2756 continue;
2757
2758 transform = msi_alloc_zero( sizeof(TRANSFORMDATA) );
2759 if ( !transform )
2760 break;
2761
2762 list_add_tail( &transforms, &transform->entry );
2763
2764 transform->name = strdupW( name + 1 );
2765
2766 if ( !strcmpW( transform->name, szTables ) )
2767 tables = transform;
2768 else if (!strcmpW( transform->name, szColumns ) )
2769 columns = transform;
2770 else if (!strcmpW( transform->name, szProperty ))
2771 property_update = TRUE;
2772
2773 TRACE("transform contains stream %s\n", debugstr_w(name));
2774
2775 /* load the table */
2776 if (TABLE_CreateView( db, transform->name, (MSIVIEW**) &tv ) != ERROR_SUCCESS)
2777 continue;
2778
2779 if (tv->view.ops->execute( &tv->view, NULL ) != ERROR_SUCCESS)
2780 {
2781 tv->view.ops->delete( &tv->view );
2782 continue;
2783 }
2784
2785 tv->view.ops->delete( &tv->view );
2786 }
2787
2788 /*
2789 * Apply _Tables and _Columns transforms first so that
2790 * the table metadata is correct, and empty tables exist.
2791 */
2792 ret = msi_table_load_transform( db, stg, strings, tables, bytes_per_strref );
2793 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2794 goto end;
2795
2796 ret = msi_table_load_transform( db, stg, strings, columns, bytes_per_strref );
2797 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2798 goto end;
2799
2800 ret = ERROR_SUCCESS;
2801
2802 while ( !list_empty( &transforms ) )
2803 {
2804 transform = LIST_ENTRY( list_head( &transforms ), TRANSFORMDATA, entry );
2805
2806 if ( strcmpW( transform->name, szColumns ) &&
2807 strcmpW( transform->name, szTables ) &&
2808 ret == ERROR_SUCCESS )
2809 {
2810 ret = msi_table_load_transform( db, stg, strings, transform, bytes_per_strref );
2811 }
2812
2813 list_remove( &transform->entry );
2814 msi_free( transform->name );
2815 msi_free( transform );
2816 }
2817
2818 if ( ret == ERROR_SUCCESS )
2819 {
2820 append_storage_to_db( db, stg );
2821 if (property_update) msi_clone_properties( db );
2822 }
2823
2824 end:
2825 if ( stgenum )
2826 IEnumSTATSTG_Release( stgenum );
2827 if ( strings )
2828 msi_destroy_stringtable( strings );
2829
2830 return ret;
2831 }
Windows API implementation