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msi: Add handling for the MSIMODIFY_UPDATE command.
[wine/wine64.git] / dlls / msi / table.c
blob533381714eb3e30794f7bcb3a3eb4416882f5b10
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 #define NONAMELESSUNION
26 #define NONAMELESSSTRUCT
27
28 #include "windef.h"
29 #include "winbase.h"
30 #include "winerror.h"
31 #include "msi.h"
32 #include "msiquery.h"
33 #include "objbase.h"
34 #include "objidl.h"
35 #include "winnls.h"
36 #include "msipriv.h"
37 #include "query.h"
38
39 #include "wine/debug.h"
40 #include "wine/unicode.h"
41
42 WINE_DEFAULT_DEBUG_CHANNEL(msidb);
43
44 #define MSITABLE_HASH_TABLE_SIZE 37
45 #define LONG_STR_BYTES 3
46
47 typedef struct tagMSICOLUMNHASHENTRY
48 {
49 struct tagMSICOLUMNHASHENTRY *next;
50 UINT value;
51 UINT row;
52 } MSICOLUMNHASHENTRY;
53
54 typedef struct tagMSICOLUMNINFO
55 {
56 LPCWSTR tablename;
57 UINT number;
58 LPCWSTR colname;
59 UINT type;
60 UINT offset;
61 INT ref_count;
62 MSICOLUMNHASHENTRY **hash_table;
63 } MSICOLUMNINFO;
64
65 struct tagMSITABLE
66 {
67 BYTE **data;
68 UINT row_count;
69 BYTE **nonpersistent_data;
70 UINT nonpersistent_row_count;
71 struct list entry;
72 MSICOLUMNINFO *colinfo;
73 UINT col_count;
74 BOOL persistent;
75 INT ref_count;
76 WCHAR name[1];
77 };
78
79 typedef struct tagMSITRANSFORM {
80 struct list entry;
81 IStorage *stg;
82 } MSITRANSFORM;
83
84 static const WCHAR szStringData[] = {
85 '_','S','t','r','i','n','g','D','a','t','a',0 };
86 static const WCHAR szStringPool[] = {
87 '_','S','t','r','i','n','g','P','o','o','l',0 };
88
89 /* information for default tables */
90 static const WCHAR szTables[] = { '_','T','a','b','l','e','s',0 };
91 static const WCHAR szTable[] = { 'T','a','b','l','e',0 };
92 static const WCHAR szName[] = { 'N','a','m','e',0 };
93 static const WCHAR szColumns[] = { '_','C','o','l','u','m','n','s',0 };
94 static const WCHAR szNumber[] = { 'N','u','m','b','e','r',0 };
95 static const WCHAR szType[] = { 'T','y','p','e',0 };
96
97 /* These tables are written into (the .hash_table part).
98 * Do not mark them const.
99 */
100 static MSICOLUMNINFO _Columns_cols[4] = {
101 { szColumns, 1, szTable, MSITYPE_VALID | MSITYPE_STRING | MSITYPE_KEY | 64, 0 },
102 { szColumns, 2, szNumber, MSITYPE_VALID | MSITYPE_KEY | 2, 2 },
103 { szColumns, 3, szName, MSITYPE_VALID | MSITYPE_STRING | 64, 4 },
104 { szColumns, 4, szType, MSITYPE_VALID | 2, 6 },
105 };
106 static MSICOLUMNINFO _Tables_cols[1] = {
107 { szTables, 1, szName, MSITYPE_VALID | MSITYPE_STRING | 64, 0 },
108 };
109
110 #define MAX_STREAM_NAME 0x1f
111
112 static UINT table_get_column_info( MSIDATABASE *db, LPCWSTR name,
113 MSICOLUMNINFO **pcols, UINT *pcount );
114 static void table_calc_column_offsets( MSICOLUMNINFO *colinfo, DWORD count );
115 static UINT get_tablecolumns( MSIDATABASE *db,
116 LPCWSTR szTableName, MSICOLUMNINFO *colinfo, UINT *sz);
117 static void msi_free_colinfo( MSICOLUMNINFO *colinfo, UINT count );
118
119
120 void msi_table_set_strref(UINT bytes_per_strref)
121 {
122 _Columns_cols[0].offset = 0;
123 _Columns_cols[1].offset = bytes_per_strref;
124 _Columns_cols[2].offset = _Columns_cols[1].offset + sizeof(USHORT);
125 _Columns_cols[3].offset = _Columns_cols[2].offset + bytes_per_strref;
126 }
127
128 static inline UINT bytes_per_column( const MSICOLUMNINFO *col )
129 {
130 if( MSITYPE_IS_BINARY(col->type) )
131 return 2;
132 if( col->type & MSITYPE_STRING )
133 return _Columns_cols[1].offset;
134 if( (col->type & 0xff) > 4 )
135 ERR("Invalid column size!\n");
136 return col->type & 0xff;
137 }
138
139 static int utf2mime(int x)
140 {
141 if( (x>='0') && (x<='9') )
142 return x-'0';
143 if( (x>='A') && (x<='Z') )
144 return x-'A'+10;
145 if( (x>='a') && (x<='z') )
146 return x-'a'+10+26;
147 if( x=='.' )
148 return 10+26+26;
149 if( x=='_' )
150 return 10+26+26+1;
151 return -1;
152 }
153
154 LPWSTR encode_streamname(BOOL bTable, LPCWSTR in)
155 {
156 DWORD count = MAX_STREAM_NAME;
157 DWORD ch, next;
158 LPWSTR out, p;
159
160 if( !bTable )
161 count = lstrlenW( in )+2;
162 out = msi_alloc( count*sizeof(WCHAR) );
163 p = out;
164
165 if( bTable )
166 {
167 *p++ = 0x4840;
168 count --;
169 }
170 while( count -- )
171 {
172 ch = *in++;
173 if( !ch )
174 {
175 *p = ch;
176 return out;
177 }
178 if( ( ch < 0x80 ) && ( utf2mime(ch) >= 0 ) )
179 {
180 ch = utf2mime(ch) + 0x4800;
181 next = *in;
182 if( next && (next<0x80) )
183 {
184 next = utf2mime(next);
185 if( next >= 0 )
186 {
187 next += 0x3ffffc0;
188 ch += (next<<6);
189 in++;
190 }
191 }
192 }
193 *p++ = ch;
194 }
195 ERR("Failed to encode stream name (%s)\n",debugstr_w(in));
196 msi_free( out );
197 return NULL;
198 }
199
200 static int mime2utf(int x)
201 {
202 if( x<10 )
203 return x + '0';
204 if( x<(10+26))
205 return x - 10 + 'A';
206 if( x<(10+26+26))
207 return x - 10 - 26 + 'a';
208 if( x == (10+26+26) )
209 return '.';
210 return '_';
211 }
212
213 BOOL decode_streamname(LPCWSTR in, LPWSTR out)
214 {
215 WCHAR ch;
216 DWORD count = 0;
217
218 while ( (ch = *in++) )
219 {
220 if( (ch >= 0x3800 ) && (ch < 0x4840 ) )
221 {
222 if( ch >= 0x4800 )
223 ch = mime2utf(ch-0x4800);
224 else
225 {
226 ch -= 0x3800;
227 *out++ = mime2utf(ch&0x3f);
228 count++;
229 ch = mime2utf((ch>>6)&0x3f);
230 }
231 }
232 *out++ = ch;
233 count++;
234 }
235 *out = 0;
236 return count;
237 }
238
239 void enum_stream_names( IStorage *stg )
240 {
241 IEnumSTATSTG *stgenum = NULL;
242 HRESULT r;
243 STATSTG stat;
244 ULONG n, count;
245 WCHAR name[0x40];
246
247 r = IStorage_EnumElements( stg, 0, NULL, 0, &stgenum );
248 if( FAILED( r ) )
249 return;
250
251 n = 0;
252 while( 1 )
253 {
254 count = 0;
255 r = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
256 if( FAILED( r ) || !count )
257 break;
258 decode_streamname( stat.pwcsName, name );
259 TRACE("stream %2d -> %s %s\n", n,
260 debugstr_w(stat.pwcsName), debugstr_w(name) );
261 n++;
262 }
263
264 IEnumSTATSTG_Release( stgenum );
265 }
266
267 UINT read_stream_data( IStorage *stg, LPCWSTR stname, BOOL table,
268 BYTE **pdata, UINT *psz )
269 {
270 HRESULT r;
271 UINT ret = ERROR_FUNCTION_FAILED;
272 VOID *data;
273 ULONG sz, count;
274 IStream *stm = NULL;
275 STATSTG stat;
276 LPWSTR encname;
277
278 encname = encode_streamname(table, stname);
279
280 TRACE("%s -> %s\n",debugstr_w(stname),debugstr_w(encname));
281
282 r = IStorage_OpenStream(stg, encname, NULL,
283 STGM_READ | STGM_SHARE_EXCLUSIVE, 0, &stm);
284 msi_free( encname );
285 if( FAILED( r ) )
286 {
287 WARN("open stream failed r = %08x - empty table?\n", r);
288 return ret;
289 }
290
291 r = IStream_Stat(stm, &stat, STATFLAG_NONAME );
292 if( FAILED( r ) )
293 {
294 WARN("open stream failed r = %08x!\n", r);
295 goto end;
296 }
297
298 if( stat.cbSize.QuadPart >> 32 )
299 {
300 WARN("Too big!\n");
301 goto end;
302 }
303
304 sz = stat.cbSize.QuadPart;
305 data = msi_alloc( sz );
306 if( !data )
307 {
308 WARN("couldn't allocate memory r=%08x!\n", r);
309 ret = ERROR_NOT_ENOUGH_MEMORY;
310 goto end;
311 }
312
313 r = IStream_Read(stm, data, sz, &count );
314 if( FAILED( r ) || ( count != sz ) )
315 {
316 msi_free( data );
317 WARN("read stream failed r = %08x!\n", r);
318 goto end;
319 }
320
321 *pdata = data;
322 *psz = sz;
323 ret = ERROR_SUCCESS;
324
325 end:
326 IStream_Release( stm );
327
328 return ret;
329 }
330
331 UINT db_get_raw_stream( MSIDATABASE *db, LPCWSTR stname, IStream **stm )
332 {
333 LPWSTR encname;
334 HRESULT r;
335
336 encname = encode_streamname(FALSE, stname);
337
338 TRACE("%s -> %s\n",debugstr_w(stname),debugstr_w(encname));
339
340 r = IStorage_OpenStream(db->storage, encname, NULL,
341 STGM_READ | STGM_SHARE_EXCLUSIVE, 0, stm);
342 if( FAILED( r ) )
343 {
344 MSITRANSFORM *transform;
345
346 LIST_FOR_EACH_ENTRY( transform, &db->transforms, MSITRANSFORM, entry )
347 {
348 TRACE("looking for %s in transform storage\n", debugstr_w(stname) );
349 r = IStorage_OpenStream( transform->stg, encname, NULL,
350 STGM_READ | STGM_SHARE_EXCLUSIVE, 0, stm );
351 if (SUCCEEDED(r))
352 break;
353 }
354 }
355
356 msi_free( encname );
357
358 return SUCCEEDED(r) ? ERROR_SUCCESS : ERROR_FUNCTION_FAILED;
359 }
360
361 UINT read_raw_stream_data( MSIDATABASE *db, LPCWSTR stname,
362 USHORT **pdata, UINT *psz )
363 {
364 HRESULT r;
365 UINT ret = ERROR_FUNCTION_FAILED;
366 VOID *data;
367 ULONG sz, count;
368 IStream *stm = NULL;
369 STATSTG stat;
370
371 r = db_get_raw_stream( db, stname, &stm );
372 if( r != ERROR_SUCCESS)
373 return ret;
374 r = IStream_Stat(stm, &stat, STATFLAG_NONAME );
375 if( FAILED( r ) )
376 {
377 WARN("open stream failed r = %08x!\n", r);
378 goto end;
379 }
380
381 if( stat.cbSize.QuadPart >> 32 )
382 {
383 WARN("Too big!\n");
384 goto end;
385 }
386
387 sz = stat.cbSize.QuadPart;
388 data = msi_alloc( sz );
389 if( !data )
390 {
391 WARN("couldn't allocate memory r=%08x!\n", r);
392 ret = ERROR_NOT_ENOUGH_MEMORY;
393 goto end;
394 }
395
396 r = IStream_Read(stm, data, sz, &count );
397 if( FAILED( r ) || ( count != sz ) )
398 {
399 msi_free( data );
400 WARN("read stream failed r = %08x!\n", r);
401 goto end;
402 }
403
404 *pdata = data;
405 *psz = sz;
406 ret = ERROR_SUCCESS;
407
408 end:
409 IStream_Release( stm );
410
411 return ret;
412 }
413
414 UINT write_stream_data( IStorage *stg, LPCWSTR stname,
415 LPCVOID data, UINT sz, BOOL bTable )
416 {
417 HRESULT r;
418 UINT ret = ERROR_FUNCTION_FAILED;
419 ULONG count;
420 IStream *stm = NULL;
421 ULARGE_INTEGER size;
422 LARGE_INTEGER pos;
423 LPWSTR encname;
424
425 encname = encode_streamname(bTable, stname );
426 r = IStorage_OpenStream( stg, encname, NULL,
427 STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, &stm);
428 if( FAILED(r) )
429 {
430 r = IStorage_CreateStream( stg, encname,
431 STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, 0, &stm);
432 }
433 msi_free( encname );
434 if( FAILED( r ) )
435 {
436 WARN("open stream failed r = %08x\n", r);
437 return ret;
438 }
439
440 size.QuadPart = sz;
441 r = IStream_SetSize( stm, size );
442 if( FAILED( r ) )
443 {
444 WARN("Failed to SetSize\n");
445 goto end;
446 }
447
448 pos.QuadPart = 0;
449 r = IStream_Seek( stm, pos, STREAM_SEEK_SET, NULL );
450 if( FAILED( r ) )
451 {
452 WARN("Failed to Seek\n");
453 goto end;
454 }
455
456 if (sz)
457 {
458 r = IStream_Write(stm, data, sz, &count );
459 if( FAILED( r ) || ( count != sz ) )
460 {
461 WARN("Failed to Write\n");
462 goto end;
463 }
464 }
465
466 ret = ERROR_SUCCESS;
467
468 end:
469 IStream_Release( stm );
470
471 return ret;
472 }
473
474 static void free_table( MSITABLE *table )
475 {
476 int i;
477 for( i=0; i<table->row_count; i++ )
478 msi_free( table->data[i] );
479 msi_free( table->data );
480 for( i=0; i<table->nonpersistent_row_count; i++ )
481 msi_free( table->nonpersistent_data[i] );
482 msi_free( table->nonpersistent_data );
483 if( (table->colinfo != _Tables_cols) &&
484 (table->colinfo != _Columns_cols) )
485 {
486 msi_free_colinfo( table->colinfo, table->col_count );
487 msi_free( table->colinfo );
488 }
489 msi_free( table );
490 }
491
492 static UINT msi_table_get_row_size( const MSICOLUMNINFO *cols, UINT count )
493 {
494 const MSICOLUMNINFO *last_col = &cols[count-1];
495 if (!count)
496 return 0;
497 return last_col->offset + bytes_per_column( last_col );
498 }
499
500 /* add this table to the list of cached tables in the database */
501 static UINT read_table_from_storage( MSITABLE *t, IStorage *stg )
502 {
503 BYTE *rawdata = NULL;
504 UINT rawsize = 0, i, j, row_size = 0;
505
506 TRACE("%s\n",debugstr_w(t->name));
507
508 row_size = msi_table_get_row_size( t->colinfo, t->col_count );
509
510 /* if we can't read the table, just assume that it's empty */
511 read_stream_data( stg, t->name, TRUE, &rawdata, &rawsize );
512 if( !rawdata )
513 return ERROR_SUCCESS;
514
515 TRACE("Read %d bytes\n", rawsize );
516
517 if( rawsize % row_size )
518 {
519 WARN("Table size is invalid %d/%d\n", rawsize, row_size );
520 goto err;
521 }
522
523 t->row_count = rawsize / row_size;
524 t->data = msi_alloc_zero( t->row_count * sizeof (USHORT*) );
525 if( !t->data )
526 goto err;
527
528 /* transpose all the data */
529 TRACE("Transposing data from %d rows\n", t->row_count );
530 for( i=0; i<t->row_count; i++ )
531 {
532 t->data[i] = msi_alloc( row_size );
533 if( !t->data[i] )
534 goto err;
535
536 for( j=0; j<t->col_count; j++ )
537 {
538 UINT ofs = t->colinfo[j].offset;
539 UINT n = bytes_per_column( &t->colinfo[j] );
540 UINT k;
541
542 if ( n != 2 && n != 3 && n != 4 )
543 {
544 ERR("oops - unknown column width %d\n", n);
545 goto err;
546 }
547
548 for ( k = 0; k < n; k++ )
549 t->data[i][ofs + k] = rawdata[ofs*t->row_count + i * n + k];
550 }
551 }
552
553 msi_free( rawdata );
554 return ERROR_SUCCESS;
555 err:
556 msi_free( rawdata );
557 return ERROR_FUNCTION_FAILED;
558 }
559
560 void free_cached_tables( MSIDATABASE *db )
561 {
562 while( !list_empty( &db->tables ) )
563 {
564 MSITABLE *t = LIST_ENTRY( list_head( &db->tables ), MSITABLE, entry );
565
566 list_remove( &t->entry );
567 free_table( t );
568 }
569 }
570
571 static MSITABLE *find_cached_table( MSIDATABASE *db, LPCWSTR name )
572 {
573 MSITABLE *t;
574
575 LIST_FOR_EACH_ENTRY( t, &db->tables, MSITABLE, entry )
576 if( !lstrcmpW( name, t->name ) )
577 return t;
578
579 return NULL;
580 }
581
582 static UINT table_get_column_info( MSIDATABASE *db, LPCWSTR name, MSICOLUMNINFO **pcols, UINT *pcount )
583 {
584 UINT r, column_count = 0;
585 MSICOLUMNINFO *columns;
586
587 /* get the number of columns in this table */
588 column_count = 0;
589 r = get_tablecolumns( db, name, NULL, &column_count );
590 if( r != ERROR_SUCCESS )
591 return r;
592
593 /* if there's no columns, there's no table */
594 if( column_count == 0 )
595 return ERROR_INVALID_PARAMETER;
596
597 TRACE("Table %s found\n", debugstr_w(name) );
598
599 columns = msi_alloc( column_count*sizeof (MSICOLUMNINFO) );
600 if( !columns )
601 return ERROR_FUNCTION_FAILED;
602
603 r = get_tablecolumns( db, name, columns, &column_count );
604 if( r != ERROR_SUCCESS )
605 {
606 msi_free( columns );
607 return ERROR_FUNCTION_FAILED;
608 }
609
610 *pcols = columns;
611 *pcount = column_count;
612
613 return r;
614 }
615
616 UINT msi_create_table( MSIDATABASE *db, LPCWSTR name, column_info *col_info,
617 BOOL persistent, MSITABLE **table_ret)
618 {
619 UINT r, nField;
620 MSIVIEW *tv = NULL;
621 MSIRECORD *rec = NULL;
622 column_info *col;
623 MSITABLE *table;
624 UINT i;
625
626 /* only add tables that don't exist already */
627 if( TABLE_Exists(db, name ) )
628 {
629 WARN("table %s exists\n", debugstr_w(name));
630 return ERROR_BAD_QUERY_SYNTAX;
631 }
632
633 table = msi_alloc( sizeof (MSITABLE) + lstrlenW(name)*sizeof (WCHAR) );
634 if( !table )
635 return ERROR_FUNCTION_FAILED;
636
637 table->ref_count = 1;
638 table->row_count = 0;
639 table->data = NULL;
640 table->nonpersistent_row_count = 0;
641 table->nonpersistent_data = NULL;
642 table->colinfo = NULL;
643 table->col_count = 0;
644 table->persistent = persistent;
645 lstrcpyW( table->name, name );
646
647 for( col = col_info; col; col = col->next )
648 table->col_count++;
649
650 table->colinfo = msi_alloc( table->col_count * sizeof(MSICOLUMNINFO) );
651 if (!table->colinfo)
652 {
653 free_table( table );
654 return ERROR_FUNCTION_FAILED;
655 }
656
657 for( i = 0, col = col_info; col; i++, col = col->next )
658 {
659 table->colinfo[ i ].tablename = strdupW( col->table );
660 table->colinfo[ i ].number = i + 1;
661 table->colinfo[ i ].colname = strdupW( col->column );
662 table->colinfo[ i ].type = col->type;
663 table->colinfo[ i ].offset = 0;
664 table->colinfo[ i ].ref_count = 0;
665 table->colinfo[ i ].hash_table = NULL;
666 }
667 table_calc_column_offsets( table->colinfo, table->col_count);
668
669 r = TABLE_CreateView( db, szTables, &tv );
670 TRACE("CreateView returned %x\n", r);
671 if( r )
672 {
673 free_table( table );
674 return r;
675 }
676
677 r = tv->ops->execute( tv, 0 );
678 TRACE("tv execute returned %x\n", r);
679 if( r )
680 goto err;
681
682 rec = MSI_CreateRecord( 1 );
683 if( !rec )
684 goto err;
685
686 r = MSI_RecordSetStringW( rec, 1, name );
687 if( r )
688 goto err;
689
690 r = tv->ops->insert_row( tv, rec, !persistent );
691 TRACE("insert_row returned %x\n", r);
692 if( r )
693 goto err;
694
695 tv->ops->delete( tv );
696 tv = NULL;
697
698 msiobj_release( &rec->hdr );
699 rec = NULL;
700
701 if( persistent )
702 {
703 /* add each column to the _Columns table */
704 r = TABLE_CreateView( db, szColumns, &tv );
705 if( r )
706 return r;
707
708 r = tv->ops->execute( tv, 0 );
709 TRACE("tv execute returned %x\n", r);
710 if( r )
711 goto err;
712
713 rec = MSI_CreateRecord( 4 );
714 if( !rec )
715 goto err;
716
717 r = MSI_RecordSetStringW( rec, 1, name );
718 if( r )
719 goto err;
720
721 /*
722 * need to set the table, column number, col name and type
723 * for each column we enter in the table
724 */
725 nField = 1;
726 for( col = col_info; col; col = col->next )
727 {
728 r = MSI_RecordSetInteger( rec, 2, nField );
729 if( r )
730 goto err;
731
732 r = MSI_RecordSetStringW( rec, 3, col->column );
733 if( r )
734 goto err;
735
736 r = MSI_RecordSetInteger( rec, 4, col->type );
737 if( r )
738 goto err;
739
740 r = tv->ops->insert_row( tv, rec, FALSE );
741 if( r )
742 goto err;
743
744 nField++;
745 }
746 if( !col )
747 r = ERROR_SUCCESS;
748 }
749
750 err:
751 if (rec)
752 msiobj_release( &rec->hdr );
753 /* FIXME: remove values from the string table on error */
754 if( tv )
755 tv->ops->delete( tv );
756
757 if (r == ERROR_SUCCESS)
758 {
759 list_add_head( &db->tables, &table->entry );
760 *table_ret = table;
761 }
762 else
763 free_table( table );
764
765 return r;
766 }
767
768 static UINT get_table( MSIDATABASE *db, LPCWSTR name, MSITABLE **table_ret )
769 {
770 MSITABLE *table;
771 UINT r;
772
773 /* first, see if the table is cached */
774 table = find_cached_table( db, name );
775 if( table )
776 {
777 *table_ret = table;
778 return ERROR_SUCCESS;
779 }
780
781 /* nonexistent tables should be interpreted as empty tables */
782 table = msi_alloc( sizeof (MSITABLE) + lstrlenW(name)*sizeof (WCHAR) );
783 if( !table )
784 return ERROR_FUNCTION_FAILED;
785
786 table->row_count = 0;
787 table->data = NULL;
788 table->nonpersistent_row_count = 0;
789 table->nonpersistent_data = NULL;
790 table->colinfo = NULL;
791 table->col_count = 0;
792 table->persistent = TRUE;
793 lstrcpyW( table->name, name );
794
795 /* these two tables are special - we know the column types already */
796 if( !lstrcmpW( name, szColumns ) )
797 {
798 table->colinfo = _Columns_cols;
799 table->col_count = sizeof(_Columns_cols)/sizeof(_Columns_cols[0]);
800 }
801 else if( !lstrcmpW( name, szTables ) )
802 {
803 table->colinfo = _Tables_cols;
804 table->col_count = sizeof(_Tables_cols)/sizeof(_Tables_cols[0]);
805 }
806 else
807 {
808 r = table_get_column_info( db, name, &table->colinfo, &table->col_count);
809 if (r != ERROR_SUCCESS)
810 {
811 free_table ( table );
812 return r;
813 }
814 }
815
816 r = read_table_from_storage( table, db->storage );
817 if( r != ERROR_SUCCESS )
818 {
819 free_table( table );
820 return r;
821 }
822
823 list_add_head( &db->tables, &table->entry );
824 *table_ret = table;
825 return ERROR_SUCCESS;
826 }
827
828 static UINT save_table( MSIDATABASE *db, const MSITABLE *t )
829 {
830 BYTE *rawdata = NULL, *p;
831 UINT rawsize, r, i, j, row_size;
832
833 /* Nothing to do for non-persistent tables */
834 if( !t->persistent )
835 return ERROR_SUCCESS;
836
837 TRACE("Saving %s\n", debugstr_w( t->name ) );
838
839 row_size = msi_table_get_row_size( t->colinfo, t->col_count );
840
841 rawsize = t->row_count * row_size;
842 rawdata = msi_alloc_zero( rawsize );
843 if( !rawdata )
844 {
845 r = ERROR_NOT_ENOUGH_MEMORY;
846 goto err;
847 }
848
849 p = rawdata;
850 for( i=0; i<t->col_count; i++ )
851 {
852 for( j=0; j<t->row_count; j++ )
853 {
854 UINT offset = t->colinfo[i].offset;
855
856 *p++ = t->data[j][offset];
857 *p++ = t->data[j][offset + 1];
858 if( 4 == bytes_per_column( &t->colinfo[i] ) )
859 {
860 *p++ = t->data[j][offset + 2];
861 *p++ = t->data[j][offset + 3];
862 }
863 }
864 }
865
866 TRACE("writing %d bytes\n", rawsize);
867 r = write_stream_data( db->storage, t->name, rawdata, rawsize, TRUE );
868
869 err:
870 msi_free( rawdata );
871
872 return r;
873 }
874
875 static void table_calc_column_offsets( MSICOLUMNINFO *colinfo, DWORD count )
876 {
877 DWORD i;
878
879 for( i=0; colinfo && (i<count); i++ )
880 {
881 assert( (i+1) == colinfo[ i ].number );
882 if (i)
883 colinfo[i].offset = colinfo[ i - 1 ].offset
884 + bytes_per_column( &colinfo[ i - 1 ] );
885 else
886 colinfo[i].offset = 0;
887 TRACE("column %d is [%s] with type %08x ofs %d\n",
888 colinfo[i].number, debugstr_w(colinfo[i].colname),
889 colinfo[i].type, colinfo[i].offset);
890 }
891 }
892
893 static UINT get_defaulttablecolumns( LPCWSTR name, MSICOLUMNINFO *colinfo, UINT *sz)
894 {
895 const MSICOLUMNINFO *p;
896 DWORD i, n;
897
898 TRACE("%s\n", debugstr_w(name));
899
900 if (!lstrcmpW( name, szTables ))
901 {
902 p = _Tables_cols;
903 n = 1;
904 }
905 else if (!lstrcmpW( name, szColumns ))
906 {
907 p = _Columns_cols;
908 n = 4;
909 }
910 else
911 return ERROR_FUNCTION_FAILED;
912
913 /* duplicate the string data so we can free it in msi_free_colinfo */
914 for (i=0; i<n; i++)
915 {
916 if (colinfo && (i < *sz) )
917 {
918 memcpy( &colinfo[i], &p[i], sizeof(MSICOLUMNINFO) );
919 colinfo[i].tablename = strdupW( p[i].tablename );
920 colinfo[i].colname = strdupW( p[i].colname );
921 }
922 if( colinfo && (i >= *sz) )
923 break;
924 }
925 table_calc_column_offsets( colinfo, n );
926 *sz = n;
927 return ERROR_SUCCESS;
928 }
929
930 static void msi_free_colinfo( MSICOLUMNINFO *colinfo, UINT count )
931 {
932 UINT i;
933
934 for( i=0; i<count; i++ )
935 {
936 msi_free( (LPWSTR) colinfo[i].tablename );
937 msi_free( (LPWSTR) colinfo[i].colname );
938 msi_free( colinfo[i].hash_table );
939 }
940 }
941
942 static LPWSTR msi_makestring( const MSIDATABASE *db, UINT stringid)
943 {
944 return strdupW(msi_string_lookup_id( db->strings, stringid ));
945 }
946
947 static UINT read_table_int(BYTE *const *data, UINT row, UINT col, UINT bytes)
948 {
949 UINT ret = 0, i;
950
951 for (i = 0; i < bytes; i++)
952 ret += (data[row][col + i] << i * 8);
953
954 return ret;
955 }
956
957 static UINT get_tablecolumns( MSIDATABASE *db,
958 LPCWSTR szTableName, MSICOLUMNINFO *colinfo, UINT *sz)
959 {
960 UINT r, i, n=0, table_id, count, maxcount = *sz;
961 MSITABLE *table = NULL;
962
963 TRACE("%s\n", debugstr_w(szTableName));
964
965 /* first check if there is a default table with that name */
966 r = get_defaulttablecolumns( szTableName, colinfo, sz );
967 if( ( r == ERROR_SUCCESS ) && *sz )
968 return r;
969
970 r = get_table( db, szColumns, &table );
971 if( r != ERROR_SUCCESS )
972 {
973 ERR("couldn't load _Columns table\n");
974 return ERROR_FUNCTION_FAILED;
975 }
976
977 /* convert table and column names to IDs from the string table */
978 r = msi_string2idW( db->strings, szTableName, &table_id );
979 if( r != ERROR_SUCCESS )
980 {
981 WARN("Couldn't find id for %s\n", debugstr_w(szTableName));
982 return r;
983 }
984
985 TRACE("Table id is %d, row count is %d\n", table_id, table->row_count);
986
987 /* Note: _Columns table doesn't have non-persistent data */
988
989 /* if maxcount is non-zero, assume it's exactly right for this table */
990 memset( colinfo, 0, maxcount*sizeof(*colinfo) );
991 count = table->row_count;
992 for( i=0; i<count; i++ )
993 {
994 if( read_table_int(table->data, i, 0, db->bytes_per_strref) != table_id )
995 continue;
996 if( colinfo )
997 {
998 UINT id = read_table_int(table->data, i, _Columns_cols[2].offset, db->bytes_per_strref);
999 UINT col = read_table_int(table->data, i, _Columns_cols[1].offset, sizeof(USHORT)) - (1<<15);
1000
1001 /* check the column number is in range */
1002 if (col<1 || col>maxcount)
1003 {
1004 ERR("column %d out of range\n", col);
1005 continue;
1006 }
1007
1008 /* check if this column was already set */
1009 if (colinfo[ col - 1 ].number)
1010 {
1011 ERR("duplicate column %d\n", col);
1012 continue;
1013 }
1014
1015 colinfo[ col - 1 ].tablename = msi_makestring( db, table_id );
1016 colinfo[ col - 1 ].number = col;
1017 colinfo[ col - 1 ].colname = msi_makestring( db, id );
1018 colinfo[ col - 1 ].type = read_table_int(table->data, i, _Columns_cols[3].offset, sizeof(USHORT)) - (1<<15);
1019 colinfo[ col - 1 ].offset = 0;
1020 colinfo[ col - 1 ].ref_count = 0;
1021 colinfo[ col - 1 ].hash_table = NULL;
1022 }
1023 n++;
1024 }
1025
1026 TRACE("%s has %d columns\n", debugstr_w(szTableName), n);
1027
1028 if (colinfo && n != maxcount)
1029 {
1030 ERR("missing column in table %s\n", debugstr_w(szTableName));
1031 msi_free_colinfo(colinfo, maxcount );
1032 return ERROR_FUNCTION_FAILED;
1033 }
1034
1035 table_calc_column_offsets( colinfo, n );
1036 *sz = n;
1037
1038 return ERROR_SUCCESS;
1039 }
1040
1041 static void msi_update_table_columns( MSIDATABASE *db, LPCWSTR name )
1042 {
1043 MSITABLE *table;
1044 UINT size, offset;
1045 int n;
1046
1047 table = find_cached_table( db, name );
1048 msi_free( table->colinfo );
1049 table_get_column_info( db, name, &table->colinfo, &table->col_count );
1050
1051 size = msi_table_get_row_size( table->colinfo, table->col_count );
1052 offset = table->colinfo[table->col_count - 1].offset;
1053
1054 for ( n = 0; n < table->row_count; n++ )
1055 {
1056 table->data[n] = msi_realloc( table->data[n], size );
1057 table->data[n][offset] = (BYTE)MSI_NULL_INTEGER;
1058 }
1059 }
1060
1061 /* try to find the table name in the _Tables table */
1062 BOOL TABLE_Exists( MSIDATABASE *db, LPCWSTR name )
1063 {
1064 UINT r, table_id = 0, i, count;
1065 MSITABLE *table = NULL;
1066
1067 if( !lstrcmpW( name, szTables ) )
1068 return TRUE;
1069 if( !lstrcmpW( name, szColumns ) )
1070 return TRUE;
1071
1072 r = msi_string2idW( db->strings, name, &table_id );
1073 if( r != ERROR_SUCCESS )
1074 {
1075 TRACE("Couldn't find id for %s\n", debugstr_w(name));
1076 return FALSE;
1077 }
1078
1079 r = get_table( db, szTables, &table );
1080 if( r != ERROR_SUCCESS )
1081 {
1082 ERR("table %s not available\n", debugstr_w(szTables));
1083 return FALSE;
1084 }
1085
1086 count = table->row_count;
1087 for( i=0; i<count; i++ )
1088 if( table->data[ i ][ 0 ] == table_id )
1089 break;
1090
1091 if (i!=count)
1092 return TRUE;
1093
1094 count = table->nonpersistent_row_count;
1095 for( i=0; i<count; i++ )
1096 if( table->nonpersistent_data[ i ][ 0 ] == table_id )
1097 break;
1098
1099 if (i!=count)
1100 return TRUE;
1101
1102 TRACE("Searched %d tables, but %d was not found\n", count, table_id );
1103
1104 return FALSE;
1105 }
1106
1107 /* below is the query interface to a table */
1108
1109 typedef struct tagMSITABLEVIEW
1110 {
1111 MSIVIEW view;
1112 MSIDATABASE *db;
1113 MSITABLE *table;
1114 MSICOLUMNINFO *columns;
1115 UINT num_cols;
1116 UINT row_size;
1117 WCHAR name[1];
1118 } MSITABLEVIEW;
1119
1120 static UINT TABLE_fetch_int( struct tagMSIVIEW *view, UINT row, UINT col, UINT *val )
1121 {
1122 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1123 UINT offset, n;
1124 BYTE **data;
1125
1126 if( !tv->table )
1127 return ERROR_INVALID_PARAMETER;
1128
1129 if( (col==0) || (col>tv->num_cols) )
1130 return ERROR_INVALID_PARAMETER;
1131
1132 /* how many rows are there ? */
1133 if( row >= tv->table->row_count + tv->table->nonpersistent_row_count )
1134 return ERROR_NO_MORE_ITEMS;
1135
1136 if( tv->columns[col-1].offset >= tv->row_size )
1137 {
1138 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1139 ERR("%p %p\n", tv, tv->columns );
1140 return ERROR_FUNCTION_FAILED;
1141 }
1142
1143 if (row >= tv->table->row_count)
1144 {
1145 row -= tv->table->row_count;
1146 data = tv->table->nonpersistent_data;
1147 }
1148 else
1149 data = tv->table->data;
1150
1151 n = bytes_per_column( &tv->columns[col-1] );
1152 if (n != 2 && n != 3 && n != 4)
1153 {
1154 ERR("oops! what is %d bytes per column?\n", n );
1155 return ERROR_FUNCTION_FAILED;
1156 }
1157
1158 offset = tv->columns[col-1].offset;
1159 *val = read_table_int(data, row, offset, n);
1160
1161 /* TRACE("Data [%d][%d] = %d\n", row, col, *val ); */
1162
1163 return ERROR_SUCCESS;
1164 }
1165
1166 /*
1167 * We need a special case for streams, as we need to reference column with
1168 * the name of the stream in the same table, and the table name
1169 * which may not be available at higher levels of the query
1170 */
1171 static UINT TABLE_fetch_stream( struct tagMSIVIEW *view, UINT row, UINT col, IStream **stm )
1172 {
1173 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1174 UINT ival = 0, refcol = 0, r;
1175 LPCWSTR sval;
1176 LPWSTR full_name;
1177 DWORD len;
1178 static const WCHAR szDot[] = { '.', 0 };
1179 WCHAR number[0x20];
1180
1181 if( !view->ops->fetch_int )
1182 return ERROR_INVALID_PARAMETER;
1183
1184 /*
1185 * The column marked with the type stream data seems to have a single number
1186 * which references the column containing the name of the stream data
1187 *
1188 * Fetch the column to reference first.
1189 */
1190 r = view->ops->fetch_int( view, row, col, &ival );
1191 if( r != ERROR_SUCCESS )
1192 return r;
1193
1194 /* check the column value is in range */
1195 if (ival < 0 || ival > tv->num_cols || ival == col)
1196 {
1197 ERR("bad column ref (%u) for stream\n", ival);
1198 return ERROR_FUNCTION_FAILED;
1199 }
1200
1201 if ( tv->columns[ival - 1].type & MSITYPE_STRING )
1202 {
1203 /* now get the column with the name of the stream */
1204 r = view->ops->fetch_int( view, row, ival, &refcol );
1205 if ( r != ERROR_SUCCESS )
1206 return r;
1207
1208 /* lookup the string value from the string table */
1209 sval = msi_string_lookup_id( tv->db->strings, refcol );
1210 if ( !sval )
1211 return ERROR_INVALID_PARAMETER;
1212 }
1213 else
1214 {
1215 static const WCHAR fmt[] = { '%','d',0 };
1216 sprintfW( number, fmt, ival );
1217 sval = number;
1218 }
1219
1220 len = lstrlenW( tv->name ) + 2 + lstrlenW( sval );
1221 full_name = msi_alloc( len*sizeof(WCHAR) );
1222 lstrcpyW( full_name, tv->name );
1223 lstrcatW( full_name, szDot );
1224 lstrcatW( full_name, sval );
1225
1226 r = db_get_raw_stream( tv->db, full_name, stm );
1227 if( r )
1228 ERR("fetching stream %s, error = %d\n",debugstr_w(full_name), r);
1229 msi_free( full_name );
1230
1231 return r;
1232 }
1233
1234 static UINT TABLE_set_int( MSITABLEVIEW *tv, UINT row, UINT col, UINT val )
1235 {
1236 UINT offset, n, i;
1237 BYTE **data;
1238
1239 if( !tv->table )
1240 return ERROR_INVALID_PARAMETER;
1241
1242 if( (col==0) || (col>tv->num_cols) )
1243 return ERROR_INVALID_PARAMETER;
1244
1245 if( row >= tv->table->row_count + tv->table->nonpersistent_row_count )
1246 return ERROR_INVALID_PARAMETER;
1247
1248 if( tv->columns[col-1].offset >= tv->row_size )
1249 {
1250 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1251 ERR("%p %p\n", tv, tv->columns );
1252 return ERROR_FUNCTION_FAILED;
1253 }
1254
1255 msi_free( tv->columns[col-1].hash_table );
1256 tv->columns[col-1].hash_table = NULL;
1257
1258 if (row >= tv->table->row_count)
1259 {
1260 row -= tv->table->row_count;
1261 data = tv->table->nonpersistent_data;
1262 }
1263 else
1264 data = tv->table->data;
1265
1266 n = bytes_per_column( &tv->columns[col-1] );
1267 if ( n != 2 && n != 3 && n != 4 )
1268 {
1269 ERR("oops! what is %d bytes per column?\n", n );
1270 return ERROR_FUNCTION_FAILED;
1271 }
1272
1273 offset = tv->columns[col-1].offset;
1274 for ( i = 0; i < n; i++ )
1275 data[row][offset + i] = (val >> i * 8) & 0xff;
1276
1277 return ERROR_SUCCESS;
1278 }
1279
1280 static UINT TABLE_set_row( struct tagMSIVIEW *view, UINT row, MSIRECORD *rec, UINT mask )
1281 {
1282 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1283 UINT i, val, r = ERROR_SUCCESS;
1284
1285 if ( !tv->table )
1286 return ERROR_INVALID_PARAMETER;
1287
1288 /* test if any of the mask bits are invalid */
1289 if ( mask >= (1<<tv->num_cols) )
1290 return ERROR_INVALID_PARAMETER;
1291
1292 for ( i = 0; i < tv->num_cols; i++ )
1293 {
1294 BOOL persistent;
1295
1296 /* only update the fields specified in the mask */
1297 if ( !(mask&(1<<i)) )
1298 continue;
1299
1300 /* if row >= tv->table->row_count then it is a non-persistent row */
1301 persistent = tv->table->persistent && (row < tv->table->row_count);
1302 /* FIXME: should we allow updating keys? */
1303
1304 val = 0;
1305 if ( !MSI_RecordIsNull( rec, i + 1 ) )
1306 {
1307 if ( MSITYPE_IS_BINARY(tv->columns[ i ].type) )
1308 {
1309 val = 1; /* refers to the first key column */
1310 }
1311 else if ( tv->columns[i].type & MSITYPE_STRING )
1312 {
1313 LPCWSTR sval = MSI_RecordGetString( rec, i + 1 );
1314 val = msi_addstringW( tv->db->strings, 0, sval, -1, 1,
1315 persistent ? StringPersistent : StringNonPersistent );
1316 }
1317 else if ( 2 == bytes_per_column( &tv->columns[ i ] ) )
1318 {
1319 val = 0x8000 + MSI_RecordGetInteger( rec, i + 1 );
1320 if ( val & 0xffff0000 )
1321 {
1322 ERR("field %u value %d out of range\n", i+1, val - 0x8000 );
1323 return ERROR_FUNCTION_FAILED;
1324 }
1325 }
1326 else
1327 {
1328 INT ival = MSI_RecordGetInteger( rec, i + 1 );
1329 val = ival ^ 0x80000000;
1330 }
1331 }
1332
1333 r = TABLE_set_int( tv, row, i+1, val );
1334 if ( r != ERROR_SUCCESS )
1335 break;
1336 }
1337 return r;
1338 }
1339
1340 static UINT table_create_new_row( struct tagMSIVIEW *view, UINT *num, BOOL temporary )
1341 {
1342 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1343 BYTE **p, *row;
1344 UINT sz;
1345 BYTE ***data_ptr;
1346 UINT *row_count;
1347
1348 TRACE("%p %s\n", view, temporary ? "TRUE" : "FALSE");
1349
1350 if( !tv->table )
1351 return ERROR_INVALID_PARAMETER;
1352
1353 row = msi_alloc_zero( tv->row_size );
1354 if( !row )
1355 return ERROR_NOT_ENOUGH_MEMORY;
1356
1357 if( temporary )
1358 {
1359 row_count = &tv->table->nonpersistent_row_count;
1360 data_ptr = &tv->table->nonpersistent_data;
1361 *num = tv->table->row_count + tv->table->nonpersistent_row_count;
1362 }
1363 else
1364 {
1365 row_count = &tv->table->row_count;
1366 data_ptr = &tv->table->data;
1367 *num = tv->table->row_count;
1368 }
1369
1370 sz = (*row_count + 1) * sizeof (BYTE*);
1371 if( *data_ptr )
1372 p = msi_realloc( *data_ptr, sz );
1373 else
1374 p = msi_alloc( sz );
1375 if( !p )
1376 {
1377 msi_free( row );
1378 return ERROR_NOT_ENOUGH_MEMORY;
1379 }
1380
1381 *data_ptr = p;
1382 (*data_ptr)[*row_count] = row;
1383 (*row_count)++;
1384
1385 return ERROR_SUCCESS;
1386 }
1387
1388 static UINT TABLE_execute( struct tagMSIVIEW *view, MSIRECORD *record )
1389 {
1390 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1391
1392 TRACE("%p %p\n", tv, record);
1393
1394 TRACE("There are %d columns\n", tv->num_cols );
1395
1396 return ERROR_SUCCESS;
1397 }
1398
1399 static UINT TABLE_close( struct tagMSIVIEW *view )
1400 {
1401 TRACE("%p\n", view );
1402
1403 return ERROR_SUCCESS;
1404 }
1405
1406 static UINT TABLE_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols)
1407 {
1408 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1409
1410 TRACE("%p %p %p\n", view, rows, cols );
1411
1412 if( cols )
1413 *cols = tv->num_cols;
1414 if( rows )
1415 {
1416 if( !tv->table )
1417 return ERROR_INVALID_PARAMETER;
1418 *rows = tv->table->row_count + tv->table->nonpersistent_row_count;
1419 }
1420
1421 return ERROR_SUCCESS;
1422 }
1423
1424 static UINT TABLE_get_column_info( struct tagMSIVIEW *view,
1425 UINT n, LPWSTR *name, UINT *type )
1426 {
1427 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1428
1429 TRACE("%p %d %p %p\n", tv, n, name, type );
1430
1431 if( ( n == 0 ) || ( n > tv->num_cols ) )
1432 return ERROR_INVALID_PARAMETER;
1433
1434 if( name )
1435 {
1436 *name = strdupW( tv->columns[n-1].colname );
1437 if( !*name )
1438 return ERROR_FUNCTION_FAILED;
1439 }
1440 if( type )
1441 *type = tv->columns[n-1].type;
1442
1443 return ERROR_SUCCESS;
1444 }
1445
1446 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row );
1447
1448 static UINT table_validate_new( MSITABLEVIEW *tv, MSIRECORD *rec )
1449 {
1450 UINT r, row, i;
1451
1452 /* check there's no null values where they're not allowed */
1453 for( i = 0; i < tv->num_cols; i++ )
1454 {
1455 if ( tv->columns[i].type & MSITYPE_NULLABLE )
1456 continue;
1457
1458 if ( MSITYPE_IS_BINARY(tv->columns[i].type) )
1459 TRACE("skipping binary column\n");
1460 else if ( tv->columns[i].type & MSITYPE_STRING )
1461 {
1462 LPCWSTR str;
1463
1464 str = MSI_RecordGetString( rec, i+1 );
1465 if (str == NULL || str[0] == 0)
1466 return ERROR_INVALID_DATA;
1467 }
1468 else
1469 {
1470 UINT n;
1471
1472 n = MSI_RecordGetInteger( rec, i+1 );
1473 if (n == MSI_NULL_INTEGER)
1474 return ERROR_INVALID_DATA;
1475 }
1476 }
1477
1478 /* check there's no duplicate keys */
1479 r = msi_table_find_row( tv, rec, &row );
1480 if (r == ERROR_SUCCESS)
1481 return ERROR_INVALID_DATA;
1482
1483 return ERROR_SUCCESS;
1484 }
1485
1486 static UINT TABLE_insert_row( struct tagMSIVIEW *view, MSIRECORD *rec, BOOL temporary )
1487 {
1488 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1489 UINT r, row = -1;
1490
1491 TRACE("%p %p %s\n", tv, rec, temporary ? "TRUE" : "FALSE" );
1492
1493 /* check that the key is unique - can we find a matching row? */
1494 r = table_validate_new( tv, rec );
1495 if( r != ERROR_SUCCESS )
1496 return ERROR_FUNCTION_FAILED;
1497
1498 r = table_create_new_row( view, &row, temporary );
1499 TRACE("insert_row returned %08x\n", r);
1500 if( r != ERROR_SUCCESS )
1501 return r;
1502
1503 return TABLE_set_row( view, row, rec, (1<<tv->num_cols) - 1 );
1504 }
1505
1506 static UINT TABLE_delete_row( struct tagMSIVIEW *view, UINT row )
1507 {
1508 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1509 UINT r, num_rows, num_cols;
1510 BYTE *src, *dest;
1511
1512 TRACE("%p %d\n", tv, row);
1513
1514 if ( !tv->table )
1515 return ERROR_INVALID_PARAMETER;
1516
1517 r = TABLE_get_dimensions( view, &num_rows, &num_cols );
1518 if ( r != ERROR_SUCCESS )
1519 return r;
1520
1521 if ( row >= num_rows )
1522 return ERROR_FUNCTION_FAILED;
1523
1524 tv->table->row_count--;
1525
1526 if ( row == num_rows - 1 )
1527 return ERROR_SUCCESS;
1528
1529 dest = tv->table->data[row];
1530 src = tv->table->data[row + 1];
1531 memmove(dest, src, (num_rows - row - 1) * tv->row_size);
1532 return ERROR_SUCCESS;
1533 }
1534
1535 static UINT msi_table_update(struct tagMSIVIEW *view, MSIRECORD *rec)
1536 {
1537 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1538 UINT r, row;
1539
1540 /* FIXME: MsiViewFetch should set rec index 0 to some ID that
1541 * sets the fetched record apart from other records
1542 */
1543
1544 if (!tv->table)
1545 return ERROR_INVALID_PARAMETER;
1546
1547 r = msi_table_find_row(tv, rec, &row);
1548 if (r != ERROR_SUCCESS)
1549 return ERROR_SUCCESS;
1550
1551 /* the row cannot be changed */
1552 if (row != 0)
1553 return ERROR_FUNCTION_FAILED;
1554
1555 return TABLE_set_row(view, row, rec, (1 << tv->num_cols) - 1);
1556 }
1557
1558 static UINT TABLE_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode,
1559 MSIRECORD *rec)
1560 {
1561 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1562 UINT r;
1563
1564 TRACE("%p %d %p\n", view, eModifyMode, rec );
1565
1566 switch (eModifyMode)
1567 {
1568 case MSIMODIFY_VALIDATE_NEW:
1569 r = table_validate_new( tv, rec );
1570 break;
1571
1572 case MSIMODIFY_INSERT_TEMPORARY:
1573 r = table_validate_new( tv, rec );
1574 if (r != ERROR_SUCCESS)
1575 break;
1576 r = TABLE_insert_row( view, rec, TRUE );
1577 break;
1578
1579 case MSIMODIFY_UPDATE:
1580 r = msi_table_update( view, rec );
1581 break;
1582
1583 case MSIMODIFY_REFRESH:
1584 case MSIMODIFY_INSERT:
1585 case MSIMODIFY_ASSIGN:
1586 case MSIMODIFY_REPLACE:
1587 case MSIMODIFY_MERGE:
1588 case MSIMODIFY_DELETE:
1589 case MSIMODIFY_VALIDATE:
1590 case MSIMODIFY_VALIDATE_FIELD:
1591 case MSIMODIFY_VALIDATE_DELETE:
1592 FIXME("%p %d %p - mode not implemented\n", view, eModifyMode, rec );
1593 r = ERROR_CALL_NOT_IMPLEMENTED;
1594 break;
1595
1596 default:
1597 r = ERROR_INVALID_DATA;
1598 }
1599
1600 return r;
1601 }
1602
1603 static UINT TABLE_delete( struct tagMSIVIEW *view )
1604 {
1605 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1606
1607 TRACE("%p\n", view );
1608
1609 tv->table = NULL;
1610
1611 tv->columns = NULL;
1612
1613 msi_free( tv );
1614
1615 return ERROR_SUCCESS;
1616 }
1617
1618 static UINT TABLE_find_matching_rows( struct tagMSIVIEW *view, UINT col,
1619 UINT val, UINT *row, MSIITERHANDLE *handle )
1620 {
1621 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1622 const MSICOLUMNHASHENTRY *entry;
1623
1624 TRACE("%p, %d, %u, %p\n", view, col, val, *handle);
1625
1626 if( !tv->table )
1627 return ERROR_INVALID_PARAMETER;
1628
1629 if( (col==0) || (col > tv->num_cols) )
1630 return ERROR_INVALID_PARAMETER;
1631
1632 if( !tv->columns[col-1].hash_table )
1633 {
1634 UINT i;
1635 UINT num_rows = tv->table->row_count + tv->table->nonpersistent_row_count;
1636 MSICOLUMNHASHENTRY **hash_table;
1637 MSICOLUMNHASHENTRY *new_entry;
1638
1639 if( tv->columns[col-1].offset >= tv->row_size )
1640 {
1641 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1642 ERR("%p %p\n", tv, tv->columns );
1643 return ERROR_FUNCTION_FAILED;
1644 }
1645
1646 /* allocate contiguous memory for the table and its entries so we
1647 * don't have to do an expensive cleanup */
1648 hash_table = msi_alloc(MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*) +
1649 num_rows * sizeof(MSICOLUMNHASHENTRY));
1650 if (!hash_table)
1651 return ERROR_OUTOFMEMORY;
1652
1653 memset(hash_table, 0, MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*));
1654 tv->columns[col-1].hash_table = hash_table;
1655
1656 new_entry = (MSICOLUMNHASHENTRY *)(hash_table + MSITABLE_HASH_TABLE_SIZE);
1657
1658 for (i = 0; i < num_rows; i++, new_entry++)
1659 {
1660 UINT row_value;
1661
1662 if (view->ops->fetch_int( view, i, col, &row_value ) != ERROR_SUCCESS)
1663 continue;
1664
1665 new_entry->next = NULL;
1666 new_entry->value = row_value;
1667 new_entry->row = i;
1668 if (hash_table[row_value % MSITABLE_HASH_TABLE_SIZE])
1669 {
1670 MSICOLUMNHASHENTRY *prev_entry = hash_table[row_value % MSITABLE_HASH_TABLE_SIZE];
1671 while (prev_entry->next)
1672 prev_entry = prev_entry->next;
1673 prev_entry->next = new_entry;
1674 }
1675 else
1676 hash_table[row_value % MSITABLE_HASH_TABLE_SIZE] = new_entry;
1677 }
1678 }
1679
1680 if( !*handle )
1681 entry = tv->columns[col-1].hash_table[val % MSITABLE_HASH_TABLE_SIZE];
1682 else
1683 entry = (*handle)->next;
1684
1685 while (entry && entry->value != val)
1686 entry = entry->next;
1687
1688 *handle = entry;
1689 if (!entry)
1690 return ERROR_NO_MORE_ITEMS;
1691
1692 *row = entry->row;
1693 return ERROR_SUCCESS;
1694 }
1695
1696 static UINT TABLE_add_ref(struct tagMSIVIEW *view)
1697 {
1698 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1699 int i;
1700
1701 TRACE("%p %d\n", view, tv->table->ref_count);
1702
1703 for (i = 0; i < tv->table->col_count; i++)
1704 {
1705 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
1706 InterlockedIncrement(&tv->table->colinfo[i].ref_count);
1707 }
1708
1709 return InterlockedIncrement(&tv->table->ref_count);
1710 }
1711
1712 static UINT TABLE_remove_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number)
1713 {
1714 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1715 MSIRECORD *rec = NULL;
1716 MSIVIEW *columns = NULL;
1717 UINT row, r;
1718
1719 rec = MSI_CreateRecord(2);
1720 if (!rec)
1721 return ERROR_OUTOFMEMORY;
1722
1723 MSI_RecordSetStringW(rec, 1, table);
1724 MSI_RecordSetInteger(rec, 2, number);
1725
1726 r = TABLE_CreateView(tv->db, szColumns, &columns);
1727 if (r != ERROR_SUCCESS)
1728 return r;
1729
1730 r = msi_table_find_row((MSITABLEVIEW *)columns, rec, &row);
1731 if (r != ERROR_SUCCESS)
1732 goto done;
1733
1734 r = TABLE_delete_row(columns, row);
1735 if (r != ERROR_SUCCESS)
1736 goto done;
1737
1738 msi_update_table_columns(tv->db, table);
1739
1740 done:
1741 msiobj_release(&rec->hdr);
1742 if (columns) columns->ops->delete(columns);
1743 return r;
1744 }
1745
1746 static UINT TABLE_release(struct tagMSIVIEW *view)
1747 {
1748 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1749 INT ref = tv->table->ref_count;
1750 int i;
1751 UINT r;
1752
1753 TRACE("%p %d\n", view, ref);
1754
1755 for (i = 0; i < tv->table->col_count; i++)
1756 {
1757 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
1758 {
1759 ref = InterlockedDecrement(&tv->table->colinfo[i].ref_count);
1760 if (ref == 0)
1761 {
1762 r = TABLE_remove_column(view, tv->table->colinfo[i].tablename,
1763 tv->table->colinfo[i].number);
1764 if (r != ERROR_SUCCESS)
1765 break;
1766 }
1767 }
1768 }
1769
1770 ref = InterlockedDecrement(&tv->table->ref_count);
1771 if (ref == 0)
1772 {
1773 if (!tv->table->row_count)
1774 {
1775 list_remove(&tv->table->entry);
1776 free_table(tv->table);
1777 TABLE_delete(view);
1778 }
1779 }
1780
1781 return ref;
1782 }
1783
1784 static UINT TABLE_add_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number,
1785 LPCWSTR column, UINT type, BOOL hold)
1786 {
1787 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1788 MSITABLE *msitable;
1789 MSIRECORD *rec;
1790 UINT r, i;
1791
1792 rec = MSI_CreateRecord(4);
1793 if (!rec)
1794 return ERROR_OUTOFMEMORY;
1795
1796 MSI_RecordSetStringW(rec, 1, table);
1797 MSI_RecordSetInteger(rec, 2, number);
1798 MSI_RecordSetStringW(rec, 3, column);
1799 MSI_RecordSetInteger(rec, 4, type);
1800
1801 r = TABLE_insert_row(&tv->view, rec, FALSE);
1802 if (r != ERROR_SUCCESS)
1803 goto done;
1804
1805 msi_update_table_columns(tv->db, table);
1806
1807 if (!hold)
1808 goto done;
1809
1810 msitable = find_cached_table(tv->db, table);
1811 for (i = 0; i < msitable->col_count; i++)
1812 {
1813 if (!lstrcmpW(msitable->colinfo[i].colname, column))
1814 {
1815 InterlockedIncrement(&msitable->colinfo[i].ref_count);
1816 break;
1817 }
1818 }
1819
1820 done:
1821 msiobj_release(&rec->hdr);
1822 return r;
1823 }
1824
1825 static const MSIVIEWOPS table_ops =
1826 {
1827 TABLE_fetch_int,
1828 TABLE_fetch_stream,
1829 TABLE_set_row,
1830 TABLE_insert_row,
1831 TABLE_delete_row,
1832 TABLE_execute,
1833 TABLE_close,
1834 TABLE_get_dimensions,
1835 TABLE_get_column_info,
1836 TABLE_modify,
1837 TABLE_delete,
1838 TABLE_find_matching_rows,
1839 TABLE_add_ref,
1840 TABLE_release,
1841 TABLE_add_column,
1842 TABLE_remove_column,
1843 };
1844
1845 UINT TABLE_CreateView( MSIDATABASE *db, LPCWSTR name, MSIVIEW **view )
1846 {
1847 MSITABLEVIEW *tv ;
1848 UINT r, sz;
1849
1850 static const WCHAR Streams[] = {'_','S','t','r','e','a','m','s',0};
1851
1852 TRACE("%p %s %p\n", db, debugstr_w(name), view );
1853
1854 if ( !lstrcmpW( name, Streams ) )
1855 return STREAMS_CreateView( db, view );
1856
1857 sz = sizeof *tv + lstrlenW(name)*sizeof name[0] ;
1858 tv = msi_alloc_zero( sz );
1859 if( !tv )
1860 return ERROR_FUNCTION_FAILED;
1861
1862 r = get_table( db, name, &tv->table );
1863 if( r != ERROR_SUCCESS )
1864 {
1865 msi_free( tv );
1866 WARN("table not found\n");
1867 return r;
1868 }
1869
1870 TRACE("table %p found with %d columns\n", tv->table, tv->table->col_count);
1871
1872 /* fill the structure */
1873 tv->view.ops = &table_ops;
1874 tv->db = db;
1875 tv->columns = tv->table->colinfo;
1876 tv->num_cols = tv->table->col_count;
1877 tv->row_size = msi_table_get_row_size( tv->table->colinfo, tv->table->col_count );
1878
1879 TRACE("%s one row is %d bytes\n", debugstr_w(name), tv->row_size );
1880
1881 *view = (MSIVIEW*) tv;
1882 lstrcpyW( tv->name, name );
1883
1884 return ERROR_SUCCESS;
1885 }
1886
1887 UINT MSI_CommitTables( MSIDATABASE *db )
1888 {
1889 UINT r;
1890 MSITABLE *table = NULL;
1891
1892 TRACE("%p\n",db);
1893
1894 r = msi_save_string_table( db->strings, db->storage );
1895 if( r != ERROR_SUCCESS )
1896 {
1897 WARN("failed to save string table r=%08x\n",r);
1898 return r;
1899 }
1900
1901 LIST_FOR_EACH_ENTRY( table, &db->tables, MSITABLE, entry )
1902 {
1903 r = save_table( db, table );
1904 if( r != ERROR_SUCCESS )
1905 {
1906 WARN("failed to save table %s (r=%08x)\n",
1907 debugstr_w(table->name), r);
1908 return r;
1909 }
1910 }
1911
1912 /* force everything to reload next time */
1913 free_cached_tables( db );
1914
1915 return ERROR_SUCCESS;
1916 }
1917
1918 MSICONDITION MSI_DatabaseIsTablePersistent( MSIDATABASE *db, LPCWSTR table )
1919 {
1920 MSITABLE *t;
1921 UINT r;
1922
1923 TRACE("%p %s\n", db, debugstr_w(table));
1924
1925 if (!table)
1926 return MSICONDITION_ERROR;
1927
1928 r = get_table( db, table, &t );
1929 if (r != ERROR_SUCCESS)
1930 return MSICONDITION_NONE;
1931
1932 if (t->persistent)
1933 return MSICONDITION_TRUE;
1934 else
1935 return MSICONDITION_FALSE;
1936 }
1937
1938 static UINT read_raw_int(const BYTE *data, UINT col, UINT bytes)
1939 {
1940 UINT ret = 0, i;
1941
1942 for (i = 0; i < bytes; i++)
1943 ret += (data[col + i] << i * 8);
1944
1945 return ret;
1946 }
1947
1948 static MSIRECORD *msi_get_transform_record( const MSITABLEVIEW *tv, const string_table *st,
1949 const BYTE *rawdata, UINT bytes_per_strref )
1950 {
1951 UINT i, val, ofs = 0;
1952 USHORT mask;
1953 MSICOLUMNINFO *columns = tv->columns;
1954 MSIRECORD *rec;
1955
1956 mask = rawdata[0] | (rawdata[1] << 8);
1957 rawdata += 2;
1958
1959 rec = MSI_CreateRecord( tv->num_cols );
1960 if( !rec )
1961 return rec;
1962
1963 TRACE("row ->\n");
1964 for( i=0; i<tv->num_cols; i++ )
1965 {
1966 if ( (mask&1) && (i>=(mask>>8)) )
1967 break;
1968 /* all keys must be present */
1969 if ( (~mask&1) && (~columns[i].type & MSITYPE_KEY) && ((1<<i) & ~mask) )
1970 continue;
1971
1972 if( (columns[i].type & MSITYPE_STRING) &&
1973 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
1974 {
1975 LPCWSTR sval;
1976
1977 val = read_raw_int(rawdata, ofs, bytes_per_strref);
1978 sval = msi_string_lookup_id( st, val );
1979 MSI_RecordSetStringW( rec, i+1, sval );
1980 TRACE(" field %d [%s]\n", i+1, debugstr_w(sval));
1981 ofs += bytes_per_strref;
1982 }
1983 else
1984 {
1985 UINT n = bytes_per_column( &columns[i] );
1986 switch( n )
1987 {
1988 case 2:
1989 val = read_raw_int(rawdata, ofs, n);
1990 if (val)
1991 MSI_RecordSetInteger( rec, i+1, val^0x8000 );
1992 TRACE(" field %d [0x%04x]\n", i+1, val );
1993 break;
1994 case 4:
1995 val = read_raw_int(rawdata, ofs, n);
1996 if (val)
1997 MSI_RecordSetInteger( rec, i+1, val^0x80000000 );
1998 TRACE(" field %d [0x%08x]\n", i+1, val );
1999 break;
2000 default:
2001 ERR("oops - unknown column width %d\n", n);
2002 break;
2003 }
2004 ofs += n;
2005 }
2006 }
2007 return rec;
2008 }
2009
2010 static void dump_record( MSIRECORD *rec )
2011 {
2012 UINT i, n;
2013
2014 n = MSI_RecordGetFieldCount( rec );
2015 for( i=1; i<=n; i++ )
2016 {
2017 LPCWSTR sval = MSI_RecordGetString( rec, i );
2018
2019 if( MSI_RecordIsNull( rec, i ) )
2020 TRACE("row -> []\n");
2021 else if( (sval = MSI_RecordGetString( rec, i )) )
2022 TRACE("row -> [%s]\n", debugstr_w(sval));
2023 else
2024 TRACE("row -> [0x%08x]\n", MSI_RecordGetInteger( rec, i ) );
2025 }
2026 }
2027
2028 static void dump_table( const string_table *st, const USHORT *rawdata, UINT rawsize )
2029 {
2030 LPCWSTR sval;
2031 UINT i;
2032
2033 for( i=0; i<(rawsize/2); i++ )
2034 {
2035 sval = msi_string_lookup_id( st, rawdata[i] );
2036 MESSAGE(" %04x %s\n", rawdata[i], debugstr_w(sval) );
2037 }
2038 }
2039
2040 static UINT* msi_record_to_row( const MSITABLEVIEW *tv, MSIRECORD *rec )
2041 {
2042 LPCWSTR str;
2043 UINT i, r, *data;
2044
2045 data = msi_alloc( tv->num_cols *sizeof (UINT) );
2046 for( i=0; i<tv->num_cols; i++ )
2047 {
2048 data[i] = 0;
2049
2050 if ( ~tv->columns[i].type & MSITYPE_KEY )
2051 continue;
2052
2053 /* turn the transform column value into a row value */
2054 if ( ( tv->columns[i].type & MSITYPE_STRING ) &&
2055 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2056 {
2057 str = MSI_RecordGetString( rec, i+1 );
2058 r = msi_string2idW( tv->db->strings, str, &data[i] );
2059
2060 /* if there's no matching string in the string table,
2061 these keys can't match any record, so fail now. */
2062 if( ERROR_SUCCESS != r )
2063 {
2064 msi_free( data );
2065 return NULL;
2066 }
2067 }
2068 else
2069 {
2070 data[i] = MSI_RecordGetInteger( rec, i+1 );
2071 if ((tv->columns[i].type&0xff) == 2)
2072 data[i] += 0x8000;
2073 else
2074 data[i] += 0x80000000;
2075 }
2076 }
2077 return data;
2078 }
2079
2080 static UINT msi_row_matches( MSITABLEVIEW *tv, UINT row, const UINT *data )
2081 {
2082 UINT i, r, x, ret = ERROR_FUNCTION_FAILED;
2083
2084 for( i=0; i<tv->num_cols; i++ )
2085 {
2086 if ( ~tv->columns[i].type & MSITYPE_KEY )
2087 continue;
2088
2089 /* turn the transform column value into a row value */
2090 r = TABLE_fetch_int( &tv->view, row, i+1, &x );
2091 if ( r != ERROR_SUCCESS )
2092 {
2093 ERR("TABLE_fetch_int shouldn't fail here\n");
2094 break;
2095 }
2096
2097 /* if this key matches, move to the next column */
2098 if ( x != data[i] )
2099 {
2100 ret = ERROR_FUNCTION_FAILED;
2101 break;
2102 }
2103
2104 ret = ERROR_SUCCESS;
2105 }
2106
2107 return ret;
2108 }
2109
2110 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row )
2111 {
2112 UINT i, r = ERROR_FUNCTION_FAILED, *data;
2113
2114 data = msi_record_to_row( tv, rec );
2115 if( !data )
2116 return r;
2117 for( i = 0; i < tv->table->row_count + tv->table->nonpersistent_row_count; i++ )
2118 {
2119 r = msi_row_matches( tv, i, data );
2120 if( r == ERROR_SUCCESS )
2121 {
2122 *row = i;
2123 break;
2124 }
2125 }
2126 msi_free( data );
2127 return r;
2128 }
2129
2130 typedef struct
2131 {
2132 struct list entry;
2133 LPWSTR name;
2134 } TRANSFORMDATA;
2135
2136 static UINT msi_table_load_transform( MSIDATABASE *db, IStorage *stg,
2137 string_table *st, TRANSFORMDATA *transform,
2138 UINT bytes_per_strref )
2139 {
2140 UINT rawsize = 0;
2141 BYTE *rawdata = NULL;
2142 MSITABLEVIEW *tv = NULL;
2143 UINT r, n, sz, i, mask;
2144 MSIRECORD *rec = NULL;
2145 UINT colcol = 0;
2146 WCHAR coltable[32];
2147 LPWSTR name;
2148
2149 if (!transform)
2150 return ERROR_SUCCESS;
2151
2152 name = transform->name;
2153
2154 coltable[0] = 0;
2155 TRACE("%p %p %p %s\n", db, stg, st, debugstr_w(name) );
2156
2157 /* read the transform data */
2158 read_stream_data( stg, name, TRUE, &rawdata, &rawsize );
2159 if ( !rawdata )
2160 {
2161 TRACE("table %s empty\n", debugstr_w(name) );
2162 return ERROR_INVALID_TABLE;
2163 }
2164
2165 /* create a table view */
2166 r = TABLE_CreateView( db, name, (MSIVIEW**) &tv );
2167 if( r != ERROR_SUCCESS )
2168 goto err;
2169
2170 r = tv->view.ops->execute( &tv->view, NULL );
2171 if( r != ERROR_SUCCESS )
2172 goto err;
2173
2174 TRACE("name = %s columns = %u row_size = %u raw size = %u\n",
2175 debugstr_w(name), tv->num_cols, tv->row_size, rawsize );
2176
2177 /* interpret the data */
2178 r = ERROR_SUCCESS;
2179 for( n=0; n < rawsize; )
2180 {
2181 mask = rawdata[n] | (rawdata[n+1] << 8);
2182
2183 if (mask&1)
2184 {
2185 /*
2186 * if the low bit is set, columns are continuous and
2187 * the number of columns is specified in the high byte
2188 */
2189 sz = 2;
2190 for( i=0; i<tv->num_cols; i++ )
2191 {
2192 if( (tv->columns[i].type & MSITYPE_STRING) &&
2193 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2194 sz += bytes_per_strref;
2195 else
2196 sz += bytes_per_column( &tv->columns[i] );
2197 }
2198 }
2199 else
2200 {
2201 /*
2202 * If the low bit is not set, mask is a bitmask.
2203 * Excepting for key fields, which are always present,
2204 * each bit indicates that a field is present in the transform record.
2205 *
2206 * mask == 0 is a special case ... only the keys will be present
2207 * and it means that this row should be deleted.
2208 */
2209 sz = 2;
2210 for( i=0; i<tv->num_cols; i++ )
2211 {
2212 if( (tv->columns[i].type & MSITYPE_KEY) || ((1<<i)&mask))
2213 {
2214 if( (tv->columns[i].type & MSITYPE_STRING) &&
2215 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2216 sz += bytes_per_strref;
2217 else
2218 sz += bytes_per_column( &tv->columns[i] );
2219 }
2220 }
2221 }
2222
2223 /* check we didn't run of the end of the table */
2224 if ( (n+sz) > rawsize )
2225 {
2226 ERR("borked.\n");
2227 dump_table( st, (USHORT *)rawdata, rawsize );
2228 break;
2229 }
2230
2231 rec = msi_get_transform_record( tv, st, &rawdata[n], bytes_per_strref );
2232 if (rec)
2233 {
2234 if ( mask & 1 )
2235 {
2236 WCHAR table[32];
2237 DWORD sz = 32;
2238 UINT number = MSI_NULL_INTEGER;
2239
2240 TRACE("inserting record\n");
2241
2242 if (!lstrcmpW(name, szColumns))
2243 {
2244 MSI_RecordGetStringW( rec, 1, table, &sz );
2245 number = MSI_RecordGetInteger( rec, 2 );
2246
2247 /*
2248 * Native msi seems writes nul into the Number (2nd) column of
2249 * the _Columns table, only when the columns are from a new table
2250 */
2251 if ( number == MSI_NULL_INTEGER )
2252 {
2253 /* reset the column number on a new table */
2254 if ( lstrcmpW(coltable, table) )
2255 {
2256 colcol = 0;
2257 lstrcpyW( coltable, table );
2258 }
2259
2260 /* fix nul column numbers */
2261 MSI_RecordSetInteger( rec, 2, ++colcol );
2262 }
2263 }
2264
2265 r = TABLE_insert_row( &tv->view, rec, FALSE );
2266 if (r != ERROR_SUCCESS)
2267 ERR("insert row failed\n");
2268
2269 if ( number != MSI_NULL_INTEGER && !lstrcmpW(name, szColumns) )
2270 msi_update_table_columns( db, table );
2271 }
2272 else
2273 {
2274 UINT row = 0;
2275
2276 r = msi_table_find_row( tv, rec, &row );
2277 if (r != ERROR_SUCCESS)
2278 ERR("no matching row to transform\n");
2279 else if ( mask )
2280 {
2281 TRACE("modifying row [%d]:\n", row);
2282 TABLE_set_row( &tv->view, row, rec, mask );
2283 }
2284 else
2285 {
2286 TRACE("deleting row [%d]:\n", row);
2287 TABLE_delete_row( &tv->view, row );
2288 }
2289 }
2290 if( TRACE_ON(msidb) ) dump_record( rec );
2291 msiobj_release( &rec->hdr );
2292 }
2293
2294 n += sz;
2295 }
2296
2297 err:
2298 /* no need to free the table, it's associated with the database */
2299 msi_free( rawdata );
2300 if( tv )
2301 tv->view.ops->delete( &tv->view );
2302
2303 return ERROR_SUCCESS;
2304 }
2305
2306 /*
2307 * msi_table_apply_transform
2308 *
2309 * Enumerate the table transforms in a transform storage and apply each one.
2310 */
2311 UINT msi_table_apply_transform( MSIDATABASE *db, IStorage *stg )
2312 {
2313 struct list transforms;
2314 IEnumSTATSTG *stgenum = NULL;
2315 TRANSFORMDATA *transform;
2316 TRANSFORMDATA *tables = NULL, *columns = NULL;
2317 HRESULT r;
2318 STATSTG stat;
2319 string_table *strings;
2320 UINT ret = ERROR_FUNCTION_FAILED;
2321 UINT bytes_per_strref;
2322
2323 TRACE("%p %p\n", db, stg );
2324
2325 strings = msi_load_string_table( stg, &bytes_per_strref );
2326 if( !strings )
2327 goto end;
2328
2329 r = IStorage_EnumElements( stg, 0, NULL, 0, &stgenum );
2330 if( FAILED( r ) )
2331 goto end;
2332
2333 list_init(&transforms);
2334
2335 while ( TRUE )
2336 {
2337 MSITABLEVIEW *tv = NULL;
2338 WCHAR name[0x40];
2339 ULONG count = 0;
2340
2341 r = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
2342 if ( FAILED( r ) || !count )
2343 break;
2344
2345 decode_streamname( stat.pwcsName, name );
2346 if ( name[0] != 0x4840 )
2347 continue;
2348
2349 if ( !lstrcmpW( name+1, szStringPool ) ||
2350 !lstrcmpW( name+1, szStringData ) )
2351 continue;
2352
2353 transform = msi_alloc_zero( sizeof(TRANSFORMDATA) );
2354 if ( !transform )
2355 break;
2356
2357 list_add_tail( &transforms, &transform->entry );
2358
2359 transform->name = strdupW( name + 1 );
2360
2361 if ( !lstrcmpW( transform->name, szTables ) )
2362 tables = transform;
2363 else if (!lstrcmpW( transform->name, szColumns ) )
2364 columns = transform;
2365
2366 TRACE("transform contains stream %s\n", debugstr_w(name));
2367
2368 /* load the table */
2369 r = TABLE_CreateView( db, transform->name, (MSIVIEW**) &tv );
2370 if( r != ERROR_SUCCESS )
2371 continue;
2372
2373 r = tv->view.ops->execute( &tv->view, NULL );
2374 if( r != ERROR_SUCCESS )
2375 {
2376 tv->view.ops->delete( &tv->view );
2377 continue;
2378 }
2379
2380 tv->view.ops->delete( &tv->view );
2381 }
2382
2383 /*
2384 * Apply _Tables and _Columns transforms first so that
2385 * the table metadata is correct, and empty tables exist.
2386 */
2387 ret = msi_table_load_transform( db, stg, strings, tables, bytes_per_strref );
2388 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2389 goto end;
2390
2391 ret = msi_table_load_transform( db, stg, strings, columns, bytes_per_strref );
2392 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2393 goto end;
2394
2395 ret = ERROR_SUCCESS;
2396
2397 while ( !list_empty( &transforms ) )
2398 {
2399 transform = LIST_ENTRY( list_head( &transforms ), TRANSFORMDATA, entry );
2400
2401 if ( lstrcmpW( transform->name, szColumns ) &&
2402 lstrcmpW( transform->name, szTables ) &&
2403 ret == ERROR_SUCCESS )
2404 {
2405 ret = msi_table_load_transform( db, stg, strings, transform, bytes_per_strref );
2406 }
2407
2408 list_remove( &transform->entry );
2409 msi_free( transform->name );
2410 msi_free( transform );
2411 }
2412
2413 if ( ret == ERROR_SUCCESS )
2414 append_storage_to_db( db, stg );
2415
2416 end:
2417 if ( stgenum )
2418 IEnumSTATSTG_Release( stgenum );
2419 if ( strings )
2420 msi_destroy_stringtable( strings );
2421
2422 return ret;
2423 }
2424
2425 void append_storage_to_db( MSIDATABASE *db, IStorage *stg )
2426 {
2427 MSITRANSFORM *t;
2428
2429 t = msi_alloc( sizeof *t );
2430 t->stg = stg;
2431 IStorage_AddRef( stg );
2432 list_add_tail( &db->transforms, &t->entry );
2433 }
2434
2435 void msi_free_transforms( MSIDATABASE *db )
2436 {
2437 while( !list_empty( &db->transforms ) )
2438 {
2439 MSITRANSFORM *t = LIST_ENTRY( list_head( &db->transforms ),
2440 MSITRANSFORM, entry );
2441 list_remove( &t->entry );
2442 IStorage_Release( t->stg );
2443 msi_free( t );
2444 }
2445 }