?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
winhelp: Display keywords index dialog box.
[wine.git] / dlls / msi / table.c
blobc02b1f2325b896ebde27aec5fe0a57f5cfca1c39
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 LPWSTR tablename;
57 UINT number;
58 LPWSTR 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 WCHAR szTables[] = { '_','T','a','b','l','e','s',0 };
91 static WCHAR szTable[] = { 'T','a','b','l','e',0 };
92 static WCHAR szName[] = { 'N','a','m','e',0 };
93 static WCHAR szColumns[] = { '_','C','o','l','u','m','n','s',0 };
94 static WCHAR szNumber[] = { 'N','u','m','b','e','r',0 };
95 static 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( colinfo[i].tablename );
937 msi_free( 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, old_count;
1045 int n;
1046
1047 table = find_cached_table( db, name );
1048 old_count = table->col_count;
1049 msi_free( table->colinfo );
1050 table_get_column_info( db, name, &table->colinfo, &table->col_count );
1051
1052 size = msi_table_get_row_size( table->colinfo, table->col_count );
1053 offset = table->colinfo[table->col_count - 1].offset;
1054
1055 for ( n = 0; n < table->row_count; n++ )
1056 {
1057 table->data[n] = msi_realloc( table->data[n], size );
1058 if (old_count < table->col_count)
1059 memset( &table->data[n][offset], 0, size - offset );
1060 }
1061 }
1062
1063 /* try to find the table name in the _Tables table */
1064 BOOL TABLE_Exists( MSIDATABASE *db, LPCWSTR name )
1065 {
1066 UINT r, table_id = 0, i, count;
1067 MSITABLE *table = NULL;
1068
1069 if( !lstrcmpW( name, szTables ) )
1070 return TRUE;
1071 if( !lstrcmpW( name, szColumns ) )
1072 return TRUE;
1073
1074 r = msi_string2idW( db->strings, name, &table_id );
1075 if( r != ERROR_SUCCESS )
1076 {
1077 TRACE("Couldn't find id for %s\n", debugstr_w(name));
1078 return FALSE;
1079 }
1080
1081 r = get_table( db, szTables, &table );
1082 if( r != ERROR_SUCCESS )
1083 {
1084 ERR("table %s not available\n", debugstr_w(szTables));
1085 return FALSE;
1086 }
1087
1088 count = table->row_count;
1089 for( i=0; i<count; i++ )
1090 if( table->data[ i ][ 0 ] == table_id )
1091 break;
1092
1093 if (i!=count)
1094 return TRUE;
1095
1096 count = table->nonpersistent_row_count;
1097 for( i=0; i<count; i++ )
1098 if( table->nonpersistent_data[ i ][ 0 ] == table_id )
1099 break;
1100
1101 if (i!=count)
1102 return TRUE;
1103
1104 TRACE("Searched %d tables, but %d was not found\n", count, table_id );
1105
1106 return FALSE;
1107 }
1108
1109 /* below is the query interface to a table */
1110
1111 typedef struct tagMSITABLEVIEW
1112 {
1113 MSIVIEW view;
1114 MSIDATABASE *db;
1115 MSITABLE *table;
1116 MSICOLUMNINFO *columns;
1117 UINT num_cols;
1118 UINT row_size;
1119 WCHAR name[1];
1120 } MSITABLEVIEW;
1121
1122 static UINT TABLE_fetch_int( struct tagMSIVIEW *view, UINT row, UINT col, UINT *val )
1123 {
1124 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1125 UINT offset, n;
1126 BYTE **data;
1127
1128 if( !tv->table )
1129 return ERROR_INVALID_PARAMETER;
1130
1131 if( (col==0) || (col>tv->num_cols) )
1132 return ERROR_INVALID_PARAMETER;
1133
1134 /* how many rows are there ? */
1135 if( row >= tv->table->row_count + tv->table->nonpersistent_row_count )
1136 return ERROR_NO_MORE_ITEMS;
1137
1138 if( tv->columns[col-1].offset >= tv->row_size )
1139 {
1140 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1141 ERR("%p %p\n", tv, tv->columns );
1142 return ERROR_FUNCTION_FAILED;
1143 }
1144
1145 if (row >= tv->table->row_count)
1146 {
1147 row -= tv->table->row_count;
1148 data = tv->table->nonpersistent_data;
1149 }
1150 else
1151 data = tv->table->data;
1152
1153 n = bytes_per_column( &tv->columns[col-1] );
1154 if (n != 2 && n != 3 && n != 4)
1155 {
1156 ERR("oops! what is %d bytes per column?\n", n );
1157 return ERROR_FUNCTION_FAILED;
1158 }
1159
1160 offset = tv->columns[col-1].offset;
1161 *val = read_table_int(data, row, offset, n);
1162
1163 /* TRACE("Data [%d][%d] = %d\n", row, col, *val ); */
1164
1165 return ERROR_SUCCESS;
1166 }
1167
1168 /*
1169 * We need a special case for streams, as we need to reference column with
1170 * the name of the stream in the same table, and the table name
1171 * which may not be available at higher levels of the query
1172 */
1173 static UINT TABLE_fetch_stream( struct tagMSIVIEW *view, UINT row, UINT col, IStream **stm )
1174 {
1175 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1176 UINT ival = 0, refcol = 0, r;
1177 LPCWSTR sval;
1178 LPWSTR full_name;
1179 DWORD len;
1180 static const WCHAR szDot[] = { '.', 0 };
1181 WCHAR number[0x20];
1182
1183 if( !view->ops->fetch_int )
1184 return ERROR_INVALID_PARAMETER;
1185
1186 /*
1187 * The column marked with the type stream data seems to have a single number
1188 * which references the column containing the name of the stream data
1189 *
1190 * Fetch the column to reference first.
1191 */
1192 r = view->ops->fetch_int( view, row, col, &ival );
1193 if( r != ERROR_SUCCESS )
1194 return r;
1195
1196 /* check the column value is in range */
1197 if (ival < 0 || ival > tv->num_cols || ival == col)
1198 {
1199 ERR("bad column ref (%u) for stream\n", ival);
1200 return ERROR_FUNCTION_FAILED;
1201 }
1202
1203 if ( tv->columns[ival - 1].type & MSITYPE_STRING )
1204 {
1205 /* now get the column with the name of the stream */
1206 r = view->ops->fetch_int( view, row, ival, &refcol );
1207 if ( r != ERROR_SUCCESS )
1208 return r;
1209
1210 /* lookup the string value from the string table */
1211 sval = msi_string_lookup_id( tv->db->strings, refcol );
1212 if ( !sval )
1213 return ERROR_INVALID_PARAMETER;
1214 }
1215 else
1216 {
1217 static const WCHAR fmt[] = { '%','d',0 };
1218 sprintfW( number, fmt, ival );
1219 sval = number;
1220 }
1221
1222 len = lstrlenW( tv->name ) + 2 + lstrlenW( sval );
1223 full_name = msi_alloc( len*sizeof(WCHAR) );
1224 lstrcpyW( full_name, tv->name );
1225 lstrcatW( full_name, szDot );
1226 lstrcatW( full_name, sval );
1227
1228 r = db_get_raw_stream( tv->db, full_name, stm );
1229 if( r )
1230 ERR("fetching stream %s, error = %d\n",debugstr_w(full_name), r);
1231 msi_free( full_name );
1232
1233 return r;
1234 }
1235
1236 static UINT TABLE_set_int( MSITABLEVIEW *tv, UINT row, UINT col, UINT val )
1237 {
1238 UINT offset, n, i;
1239 BYTE **data;
1240
1241 if( !tv->table )
1242 return ERROR_INVALID_PARAMETER;
1243
1244 if( (col==0) || (col>tv->num_cols) )
1245 return ERROR_INVALID_PARAMETER;
1246
1247 if( row >= tv->table->row_count + tv->table->nonpersistent_row_count )
1248 return ERROR_INVALID_PARAMETER;
1249
1250 if( tv->columns[col-1].offset >= tv->row_size )
1251 {
1252 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1253 ERR("%p %p\n", tv, tv->columns );
1254 return ERROR_FUNCTION_FAILED;
1255 }
1256
1257 msi_free( tv->columns[col-1].hash_table );
1258 tv->columns[col-1].hash_table = NULL;
1259
1260 if (row >= tv->table->row_count)
1261 {
1262 row -= tv->table->row_count;
1263 data = tv->table->nonpersistent_data;
1264 }
1265 else
1266 data = tv->table->data;
1267
1268 n = bytes_per_column( &tv->columns[col-1] );
1269 if ( n != 2 && n != 3 && n != 4 )
1270 {
1271 ERR("oops! what is %d bytes per column?\n", n );
1272 return ERROR_FUNCTION_FAILED;
1273 }
1274
1275 offset = tv->columns[col-1].offset;
1276 for ( i = 0; i < n; i++ )
1277 data[row][offset + i] = (val >> i * 8) & 0xff;
1278
1279 return ERROR_SUCCESS;
1280 }
1281
1282 static UINT TABLE_get_row( struct tagMSIVIEW *view, UINT row, MSIRECORD **rec )
1283 {
1284 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1285
1286 if (!tv->table)
1287 return ERROR_INVALID_PARAMETER;
1288
1289 return msi_view_get_row(tv->db, view, row, rec);
1290 }
1291
1292 static UINT TABLE_set_row( struct tagMSIVIEW *view, UINT row, MSIRECORD *rec, UINT mask )
1293 {
1294 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1295 UINT i, val, r = ERROR_SUCCESS;
1296
1297 if ( !tv->table )
1298 return ERROR_INVALID_PARAMETER;
1299
1300 /* test if any of the mask bits are invalid */
1301 if ( mask >= (1<<tv->num_cols) )
1302 return ERROR_INVALID_PARAMETER;
1303
1304 for ( i = 0; i < tv->num_cols; i++ )
1305 {
1306 BOOL persistent;
1307
1308 /* only update the fields specified in the mask */
1309 if ( !(mask&(1<<i)) )
1310 continue;
1311
1312 /* if row >= tv->table->row_count then it is a non-persistent row */
1313 persistent = tv->table->persistent && (row < tv->table->row_count);
1314 /* FIXME: should we allow updating keys? */
1315
1316 val = 0;
1317 if ( !MSI_RecordIsNull( rec, i + 1 ) )
1318 {
1319 if ( MSITYPE_IS_BINARY(tv->columns[ i ].type) )
1320 {
1321 val = 1; /* refers to the first key column */
1322 }
1323 else if ( tv->columns[i].type & MSITYPE_STRING )
1324 {
1325 LPCWSTR sval = MSI_RecordGetString( rec, i + 1 );
1326 UINT ival, x;
1327
1328 r = msi_string2idW(tv->db->strings, sval, &ival);
1329 if (r == ERROR_SUCCESS)
1330 {
1331 TABLE_fetch_int(&tv->view, row, i + 1, &x);
1332 if (ival == x)
1333 continue;
1334 }
1335
1336 val = msi_addstringW( tv->db->strings, 0, sval, -1, 1,
1337 persistent ? StringPersistent : StringNonPersistent );
1338 }
1339 else if ( 2 == bytes_per_column( &tv->columns[ i ] ) )
1340 {
1341 val = 0x8000 + MSI_RecordGetInteger( rec, i + 1 );
1342 if ( val & 0xffff0000 )
1343 {
1344 ERR("field %u value %d out of range\n", i+1, val - 0x8000 );
1345 return ERROR_FUNCTION_FAILED;
1346 }
1347 }
1348 else
1349 {
1350 INT ival = MSI_RecordGetInteger( rec, i + 1 );
1351 val = ival ^ 0x80000000;
1352 }
1353 }
1354
1355 r = TABLE_set_int( tv, row, i+1, val );
1356 if ( r != ERROR_SUCCESS )
1357 break;
1358 }
1359 return r;
1360 }
1361
1362 static UINT table_create_new_row( struct tagMSIVIEW *view, UINT *num, BOOL temporary )
1363 {
1364 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1365 BYTE **p, *row;
1366 UINT sz;
1367 BYTE ***data_ptr;
1368 UINT *row_count;
1369
1370 TRACE("%p %s\n", view, temporary ? "TRUE" : "FALSE");
1371
1372 if( !tv->table )
1373 return ERROR_INVALID_PARAMETER;
1374
1375 row = msi_alloc_zero( tv->row_size );
1376 if( !row )
1377 return ERROR_NOT_ENOUGH_MEMORY;
1378
1379 if( temporary )
1380 {
1381 row_count = &tv->table->nonpersistent_row_count;
1382 data_ptr = &tv->table->nonpersistent_data;
1383 *num = tv->table->row_count + tv->table->nonpersistent_row_count;
1384 }
1385 else
1386 {
1387 row_count = &tv->table->row_count;
1388 data_ptr = &tv->table->data;
1389 *num = tv->table->row_count;
1390 }
1391
1392 sz = (*row_count + 1) * sizeof (BYTE*);
1393 if( *data_ptr )
1394 p = msi_realloc( *data_ptr, sz );
1395 else
1396 p = msi_alloc( sz );
1397 if( !p )
1398 {
1399 msi_free( row );
1400 return ERROR_NOT_ENOUGH_MEMORY;
1401 }
1402
1403 *data_ptr = p;
1404 (*data_ptr)[*row_count] = row;
1405 (*row_count)++;
1406
1407 return ERROR_SUCCESS;
1408 }
1409
1410 static UINT TABLE_execute( struct tagMSIVIEW *view, MSIRECORD *record )
1411 {
1412 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1413
1414 TRACE("%p %p\n", tv, record);
1415
1416 TRACE("There are %d columns\n", tv->num_cols );
1417
1418 return ERROR_SUCCESS;
1419 }
1420
1421 static UINT TABLE_close( struct tagMSIVIEW *view )
1422 {
1423 TRACE("%p\n", view );
1424
1425 return ERROR_SUCCESS;
1426 }
1427
1428 static UINT TABLE_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols)
1429 {
1430 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1431
1432 TRACE("%p %p %p\n", view, rows, cols );
1433
1434 if( cols )
1435 *cols = tv->num_cols;
1436 if( rows )
1437 {
1438 if( !tv->table )
1439 return ERROR_INVALID_PARAMETER;
1440 *rows = tv->table->row_count + tv->table->nonpersistent_row_count;
1441 }
1442
1443 return ERROR_SUCCESS;
1444 }
1445
1446 static UINT TABLE_get_column_info( struct tagMSIVIEW *view,
1447 UINT n, LPWSTR *name, UINT *type )
1448 {
1449 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1450
1451 TRACE("%p %d %p %p\n", tv, n, name, type );
1452
1453 if( ( n == 0 ) || ( n > tv->num_cols ) )
1454 return ERROR_INVALID_PARAMETER;
1455
1456 if( name )
1457 {
1458 *name = strdupW( tv->columns[n-1].colname );
1459 if( !*name )
1460 return ERROR_FUNCTION_FAILED;
1461 }
1462 if( type )
1463 *type = tv->columns[n-1].type;
1464
1465 return ERROR_SUCCESS;
1466 }
1467
1468 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row );
1469
1470 static UINT table_validate_new( MSITABLEVIEW *tv, MSIRECORD *rec )
1471 {
1472 UINT r, row, i;
1473
1474 /* check there's no null values where they're not allowed */
1475 for( i = 0; i < tv->num_cols; i++ )
1476 {
1477 if ( tv->columns[i].type & MSITYPE_NULLABLE )
1478 continue;
1479
1480 if ( MSITYPE_IS_BINARY(tv->columns[i].type) )
1481 TRACE("skipping binary column\n");
1482 else if ( tv->columns[i].type & MSITYPE_STRING )
1483 {
1484 LPCWSTR str;
1485
1486 str = MSI_RecordGetString( rec, i+1 );
1487 if (str == NULL || str[0] == 0)
1488 return ERROR_INVALID_DATA;
1489 }
1490 else
1491 {
1492 UINT n;
1493
1494 n = MSI_RecordGetInteger( rec, i+1 );
1495 if (n == MSI_NULL_INTEGER)
1496 return ERROR_INVALID_DATA;
1497 }
1498 }
1499
1500 /* check there's no duplicate keys */
1501 r = msi_table_find_row( tv, rec, &row );
1502 if (r == ERROR_SUCCESS)
1503 return ERROR_FUNCTION_FAILED;
1504
1505 return ERROR_SUCCESS;
1506 }
1507
1508 static UINT TABLE_insert_row( struct tagMSIVIEW *view, MSIRECORD *rec, BOOL temporary )
1509 {
1510 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1511 UINT r, row = -1;
1512
1513 TRACE("%p %p %s\n", tv, rec, temporary ? "TRUE" : "FALSE" );
1514
1515 /* check that the key is unique - can we find a matching row? */
1516 r = table_validate_new( tv, rec );
1517 if( r != ERROR_SUCCESS )
1518 return ERROR_FUNCTION_FAILED;
1519
1520 r = table_create_new_row( view, &row, temporary );
1521 TRACE("insert_row returned %08x\n", r);
1522 if( r != ERROR_SUCCESS )
1523 return r;
1524
1525 return TABLE_set_row( view, row, rec, (1<<tv->num_cols) - 1 );
1526 }
1527
1528 static UINT TABLE_delete_row( struct tagMSIVIEW *view, UINT row )
1529 {
1530 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1531 UINT r, num_rows, num_cols, i;
1532
1533 TRACE("%p %d\n", tv, row);
1534
1535 if ( !tv->table )
1536 return ERROR_INVALID_PARAMETER;
1537
1538 r = TABLE_get_dimensions( view, &num_rows, &num_cols );
1539 if ( r != ERROR_SUCCESS )
1540 return r;
1541
1542 if ( row >= num_rows )
1543 return ERROR_FUNCTION_FAILED;
1544
1545 tv->table->row_count--;
1546
1547 if ( row == num_rows - 1 )
1548 return ERROR_SUCCESS;
1549
1550 for (i = row + 1; i < num_rows; i++)
1551 memcpy(tv->table->data[i - 1], tv->table->data[i], tv->row_size);
1552
1553 return ERROR_SUCCESS;
1554 }
1555
1556 static UINT msi_table_update(struct tagMSIVIEW *view, MSIRECORD *rec, UINT row)
1557 {
1558 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1559 UINT r, new_row;
1560
1561 /* FIXME: MsiViewFetch should set rec index 0 to some ID that
1562 * sets the fetched record apart from other records
1563 */
1564
1565 if (!tv->table)
1566 return ERROR_INVALID_PARAMETER;
1567
1568 r = msi_table_find_row(tv, rec, &new_row);
1569 if (r != ERROR_SUCCESS)
1570 {
1571 ERR("can't find row to modify\n");
1572 return ERROR_FUNCTION_FAILED;
1573 }
1574
1575 /* the row cannot be changed */
1576 if (row != new_row + 1)
1577 return ERROR_FUNCTION_FAILED;
1578
1579 return TABLE_set_row(view, new_row, rec, (1 << tv->num_cols) - 1);
1580 }
1581
1582 static UINT modify_delete_row( struct tagMSIVIEW *view, MSIRECORD *rec )
1583 {
1584 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1585 UINT row, r;
1586
1587 r = msi_table_find_row(tv, rec, &row);
1588 if (r != ERROR_SUCCESS)
1589 return r;
1590
1591 return TABLE_delete_row(view, row);
1592 }
1593
1594 static UINT TABLE_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode,
1595 MSIRECORD *rec, UINT row)
1596 {
1597 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1598 UINT r;
1599
1600 TRACE("%p %d %p\n", view, eModifyMode, rec );
1601
1602 switch (eModifyMode)
1603 {
1604 case MSIMODIFY_DELETE:
1605 r = modify_delete_row( view, rec );
1606 break;
1607 case MSIMODIFY_VALIDATE_NEW:
1608 r = table_validate_new( tv, rec );
1609 break;
1610
1611 case MSIMODIFY_INSERT_TEMPORARY:
1612 r = table_validate_new( tv, rec );
1613 if (r != ERROR_SUCCESS)
1614 break;
1615 r = TABLE_insert_row( view, rec, TRUE );
1616 break;
1617
1618 case MSIMODIFY_UPDATE:
1619 r = msi_table_update( view, rec, row );
1620 break;
1621
1622 case MSIMODIFY_REFRESH:
1623 case MSIMODIFY_INSERT:
1624 case MSIMODIFY_ASSIGN:
1625 case MSIMODIFY_REPLACE:
1626 case MSIMODIFY_MERGE:
1627 case MSIMODIFY_VALIDATE:
1628 case MSIMODIFY_VALIDATE_FIELD:
1629 case MSIMODIFY_VALIDATE_DELETE:
1630 FIXME("%p %d %p - mode not implemented\n", view, eModifyMode, rec );
1631 r = ERROR_CALL_NOT_IMPLEMENTED;
1632 break;
1633
1634 default:
1635 r = ERROR_INVALID_DATA;
1636 }
1637
1638 return r;
1639 }
1640
1641 static UINT TABLE_delete( struct tagMSIVIEW *view )
1642 {
1643 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1644
1645 TRACE("%p\n", view );
1646
1647 tv->table = NULL;
1648
1649 tv->columns = NULL;
1650
1651 msi_free( tv );
1652
1653 return ERROR_SUCCESS;
1654 }
1655
1656 static UINT TABLE_find_matching_rows( struct tagMSIVIEW *view, UINT col,
1657 UINT val, UINT *row, MSIITERHANDLE *handle )
1658 {
1659 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1660 const MSICOLUMNHASHENTRY *entry;
1661
1662 TRACE("%p, %d, %u, %p\n", view, col, val, *handle);
1663
1664 if( !tv->table )
1665 return ERROR_INVALID_PARAMETER;
1666
1667 if( (col==0) || (col > tv->num_cols) )
1668 return ERROR_INVALID_PARAMETER;
1669
1670 if( !tv->columns[col-1].hash_table )
1671 {
1672 UINT i;
1673 UINT num_rows = tv->table->row_count + tv->table->nonpersistent_row_count;
1674 MSICOLUMNHASHENTRY **hash_table;
1675 MSICOLUMNHASHENTRY *new_entry;
1676
1677 if( tv->columns[col-1].offset >= tv->row_size )
1678 {
1679 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1680 ERR("%p %p\n", tv, tv->columns );
1681 return ERROR_FUNCTION_FAILED;
1682 }
1683
1684 /* allocate contiguous memory for the table and its entries so we
1685 * don't have to do an expensive cleanup */
1686 hash_table = msi_alloc(MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*) +
1687 num_rows * sizeof(MSICOLUMNHASHENTRY));
1688 if (!hash_table)
1689 return ERROR_OUTOFMEMORY;
1690
1691 memset(hash_table, 0, MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*));
1692 tv->columns[col-1].hash_table = hash_table;
1693
1694 new_entry = (MSICOLUMNHASHENTRY *)(hash_table + MSITABLE_HASH_TABLE_SIZE);
1695
1696 for (i = 0; i < num_rows; i++, new_entry++)
1697 {
1698 UINT row_value;
1699
1700 if (view->ops->fetch_int( view, i, col, &row_value ) != ERROR_SUCCESS)
1701 continue;
1702
1703 new_entry->next = NULL;
1704 new_entry->value = row_value;
1705 new_entry->row = i;
1706 if (hash_table[row_value % MSITABLE_HASH_TABLE_SIZE])
1707 {
1708 MSICOLUMNHASHENTRY *prev_entry = hash_table[row_value % MSITABLE_HASH_TABLE_SIZE];
1709 while (prev_entry->next)
1710 prev_entry = prev_entry->next;
1711 prev_entry->next = new_entry;
1712 }
1713 else
1714 hash_table[row_value % MSITABLE_HASH_TABLE_SIZE] = new_entry;
1715 }
1716 }
1717
1718 if( !*handle )
1719 entry = tv->columns[col-1].hash_table[val % MSITABLE_HASH_TABLE_SIZE];
1720 else
1721 entry = (*handle)->next;
1722
1723 while (entry && entry->value != val)
1724 entry = entry->next;
1725
1726 *handle = entry;
1727 if (!entry)
1728 return ERROR_NO_MORE_ITEMS;
1729
1730 *row = entry->row;
1731 return ERROR_SUCCESS;
1732 }
1733
1734 static UINT TABLE_add_ref(struct tagMSIVIEW *view)
1735 {
1736 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1737 int i;
1738
1739 TRACE("%p %d\n", view, tv->table->ref_count);
1740
1741 for (i = 0; i < tv->table->col_count; i++)
1742 {
1743 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
1744 InterlockedIncrement(&tv->table->colinfo[i].ref_count);
1745 }
1746
1747 return InterlockedIncrement(&tv->table->ref_count);
1748 }
1749
1750 static UINT TABLE_remove_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number)
1751 {
1752 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1753 MSIRECORD *rec = NULL;
1754 MSIVIEW *columns = NULL;
1755 UINT row, r;
1756
1757 rec = MSI_CreateRecord(2);
1758 if (!rec)
1759 return ERROR_OUTOFMEMORY;
1760
1761 MSI_RecordSetStringW(rec, 1, table);
1762 MSI_RecordSetInteger(rec, 2, number);
1763
1764 r = TABLE_CreateView(tv->db, szColumns, &columns);
1765 if (r != ERROR_SUCCESS)
1766 return r;
1767
1768 r = msi_table_find_row((MSITABLEVIEW *)columns, rec, &row);
1769 if (r != ERROR_SUCCESS)
1770 goto done;
1771
1772 r = TABLE_delete_row(columns, row);
1773 if (r != ERROR_SUCCESS)
1774 goto done;
1775
1776 msi_update_table_columns(tv->db, table);
1777
1778 done:
1779 msiobj_release(&rec->hdr);
1780 if (columns) columns->ops->delete(columns);
1781 return r;
1782 }
1783
1784 static UINT TABLE_release(struct tagMSIVIEW *view)
1785 {
1786 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1787 INT ref = tv->table->ref_count;
1788 int i;
1789 UINT r;
1790
1791 TRACE("%p %d\n", view, ref);
1792
1793 for (i = 0; i < tv->table->col_count; i++)
1794 {
1795 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
1796 {
1797 ref = InterlockedDecrement(&tv->table->colinfo[i].ref_count);
1798 if (ref == 0)
1799 {
1800 r = TABLE_remove_column(view, tv->table->colinfo[i].tablename,
1801 tv->table->colinfo[i].number);
1802 if (r != ERROR_SUCCESS)
1803 break;
1804 }
1805 }
1806 }
1807
1808 ref = InterlockedDecrement(&tv->table->ref_count);
1809 if (ref == 0)
1810 {
1811 if (!tv->table->row_count)
1812 {
1813 list_remove(&tv->table->entry);
1814 free_table(tv->table);
1815 TABLE_delete(view);
1816 }
1817 }
1818
1819 return ref;
1820 }
1821
1822 static UINT TABLE_add_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number,
1823 LPCWSTR column, UINT type, BOOL hold)
1824 {
1825 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1826 MSITABLE *msitable;
1827 MSIRECORD *rec;
1828 UINT r, i;
1829
1830 rec = MSI_CreateRecord(4);
1831 if (!rec)
1832 return ERROR_OUTOFMEMORY;
1833
1834 MSI_RecordSetStringW(rec, 1, table);
1835 MSI_RecordSetInteger(rec, 2, number);
1836 MSI_RecordSetStringW(rec, 3, column);
1837 MSI_RecordSetInteger(rec, 4, type);
1838
1839 r = TABLE_insert_row(&tv->view, rec, FALSE);
1840 if (r != ERROR_SUCCESS)
1841 goto done;
1842
1843 msi_update_table_columns(tv->db, table);
1844
1845 if (!hold)
1846 goto done;
1847
1848 msitable = find_cached_table(tv->db, table);
1849 for (i = 0; i < msitable->col_count; i++)
1850 {
1851 if (!lstrcmpW(msitable->colinfo[i].colname, column))
1852 {
1853 InterlockedIncrement(&msitable->colinfo[i].ref_count);
1854 break;
1855 }
1856 }
1857
1858 done:
1859 msiobj_release(&rec->hdr);
1860 return r;
1861 }
1862
1863 static const MSIVIEWOPS table_ops =
1864 {
1865 TABLE_fetch_int,
1866 TABLE_fetch_stream,
1867 TABLE_get_row,
1868 TABLE_set_row,
1869 TABLE_insert_row,
1870 TABLE_delete_row,
1871 TABLE_execute,
1872 TABLE_close,
1873 TABLE_get_dimensions,
1874 TABLE_get_column_info,
1875 TABLE_modify,
1876 TABLE_delete,
1877 TABLE_find_matching_rows,
1878 TABLE_add_ref,
1879 TABLE_release,
1880 TABLE_add_column,
1881 TABLE_remove_column,
1882 };
1883
1884 UINT TABLE_CreateView( MSIDATABASE *db, LPCWSTR name, MSIVIEW **view )
1885 {
1886 MSITABLEVIEW *tv ;
1887 UINT r, sz;
1888
1889 static const WCHAR Streams[] = {'_','S','t','r','e','a','m','s',0};
1890
1891 TRACE("%p %s %p\n", db, debugstr_w(name), view );
1892
1893 if ( !lstrcmpW( name, Streams ) )
1894 return STREAMS_CreateView( db, view );
1895
1896 sz = sizeof *tv + lstrlenW(name)*sizeof name[0] ;
1897 tv = msi_alloc_zero( sz );
1898 if( !tv )
1899 return ERROR_FUNCTION_FAILED;
1900
1901 r = get_table( db, name, &tv->table );
1902 if( r != ERROR_SUCCESS )
1903 {
1904 msi_free( tv );
1905 WARN("table not found\n");
1906 return r;
1907 }
1908
1909 TRACE("table %p found with %d columns\n", tv->table, tv->table->col_count);
1910
1911 /* fill the structure */
1912 tv->view.ops = &table_ops;
1913 tv->db = db;
1914 tv->columns = tv->table->colinfo;
1915 tv->num_cols = tv->table->col_count;
1916 tv->row_size = msi_table_get_row_size( tv->table->colinfo, tv->table->col_count );
1917
1918 TRACE("%s one row is %d bytes\n", debugstr_w(name), tv->row_size );
1919
1920 *view = (MSIVIEW*) tv;
1921 lstrcpyW( tv->name, name );
1922
1923 return ERROR_SUCCESS;
1924 }
1925
1926 UINT MSI_CommitTables( MSIDATABASE *db )
1927 {
1928 UINT r;
1929 MSITABLE *table = NULL;
1930
1931 TRACE("%p\n",db);
1932
1933 r = msi_save_string_table( db->strings, db->storage );
1934 if( r != ERROR_SUCCESS )
1935 {
1936 WARN("failed to save string table r=%08x\n",r);
1937 return r;
1938 }
1939
1940 LIST_FOR_EACH_ENTRY( table, &db->tables, MSITABLE, entry )
1941 {
1942 r = save_table( db, table );
1943 if( r != ERROR_SUCCESS )
1944 {
1945 WARN("failed to save table %s (r=%08x)\n",
1946 debugstr_w(table->name), r);
1947 return r;
1948 }
1949 }
1950
1951 /* force everything to reload next time */
1952 free_cached_tables( db );
1953
1954 return ERROR_SUCCESS;
1955 }
1956
1957 MSICONDITION MSI_DatabaseIsTablePersistent( MSIDATABASE *db, LPCWSTR table )
1958 {
1959 MSITABLE *t;
1960 UINT r;
1961
1962 TRACE("%p %s\n", db, debugstr_w(table));
1963
1964 if (!table)
1965 return MSICONDITION_ERROR;
1966
1967 r = get_table( db, table, &t );
1968 if (r != ERROR_SUCCESS)
1969 return MSICONDITION_NONE;
1970
1971 if (t->persistent)
1972 return MSICONDITION_TRUE;
1973 else
1974 return MSICONDITION_FALSE;
1975 }
1976
1977 static UINT read_raw_int(const BYTE *data, UINT col, UINT bytes)
1978 {
1979 UINT ret = 0, i;
1980
1981 for (i = 0; i < bytes; i++)
1982 ret += (data[col + i] << i * 8);
1983
1984 return ret;
1985 }
1986
1987 static MSIRECORD *msi_get_transform_record( const MSITABLEVIEW *tv, const string_table *st,
1988 const BYTE *rawdata, UINT bytes_per_strref )
1989 {
1990 UINT i, val, ofs = 0;
1991 USHORT mask;
1992 MSICOLUMNINFO *columns = tv->columns;
1993 MSIRECORD *rec;
1994
1995 mask = rawdata[0] | (rawdata[1] << 8);
1996 rawdata += 2;
1997
1998 rec = MSI_CreateRecord( tv->num_cols );
1999 if( !rec )
2000 return rec;
2001
2002 TRACE("row ->\n");
2003 for( i=0; i<tv->num_cols; i++ )
2004 {
2005 if ( (mask&1) && (i>=(mask>>8)) )
2006 break;
2007 /* all keys must be present */
2008 if ( (~mask&1) && (~columns[i].type & MSITYPE_KEY) && ((1<<i) & ~mask) )
2009 continue;
2010
2011 if( (columns[i].type & MSITYPE_STRING) &&
2012 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2013 {
2014 LPCWSTR sval;
2015
2016 val = read_raw_int(rawdata, ofs, bytes_per_strref);
2017 sval = msi_string_lookup_id( st, val );
2018 MSI_RecordSetStringW( rec, i+1, sval );
2019 TRACE(" field %d [%s]\n", i+1, debugstr_w(sval));
2020 ofs += bytes_per_strref;
2021 }
2022 else
2023 {
2024 UINT n = bytes_per_column( &columns[i] );
2025 switch( n )
2026 {
2027 case 2:
2028 val = read_raw_int(rawdata, ofs, n);
2029 if (val)
2030 MSI_RecordSetInteger( rec, i+1, val^0x8000 );
2031 TRACE(" field %d [0x%04x]\n", i+1, val );
2032 break;
2033 case 4:
2034 val = read_raw_int(rawdata, ofs, n);
2035 if (val)
2036 MSI_RecordSetInteger( rec, i+1, val^0x80000000 );
2037 TRACE(" field %d [0x%08x]\n", i+1, val );
2038 break;
2039 default:
2040 ERR("oops - unknown column width %d\n", n);
2041 break;
2042 }
2043 ofs += n;
2044 }
2045 }
2046 return rec;
2047 }
2048
2049 static void dump_record( MSIRECORD *rec )
2050 {
2051 UINT i, n;
2052
2053 n = MSI_RecordGetFieldCount( rec );
2054 for( i=1; i<=n; i++ )
2055 {
2056 LPCWSTR sval = MSI_RecordGetString( rec, i );
2057
2058 if( MSI_RecordIsNull( rec, i ) )
2059 TRACE("row -> []\n");
2060 else if( (sval = MSI_RecordGetString( rec, i )) )
2061 TRACE("row -> [%s]\n", debugstr_w(sval));
2062 else
2063 TRACE("row -> [0x%08x]\n", MSI_RecordGetInteger( rec, i ) );
2064 }
2065 }
2066
2067 static void dump_table( const string_table *st, const USHORT *rawdata, UINT rawsize )
2068 {
2069 LPCWSTR sval;
2070 UINT i;
2071
2072 for( i=0; i<(rawsize/2); i++ )
2073 {
2074 sval = msi_string_lookup_id( st, rawdata[i] );
2075 MESSAGE(" %04x %s\n", rawdata[i], debugstr_w(sval) );
2076 }
2077 }
2078
2079 static UINT* msi_record_to_row( const MSITABLEVIEW *tv, MSIRECORD *rec )
2080 {
2081 LPCWSTR str;
2082 UINT i, r, *data;
2083
2084 data = msi_alloc( tv->num_cols *sizeof (UINT) );
2085 for( i=0; i<tv->num_cols; i++ )
2086 {
2087 data[i] = 0;
2088
2089 if ( ~tv->columns[i].type & MSITYPE_KEY )
2090 continue;
2091
2092 /* turn the transform column value into a row value */
2093 if ( ( tv->columns[i].type & MSITYPE_STRING ) &&
2094 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2095 {
2096 str = MSI_RecordGetString( rec, i+1 );
2097 r = msi_string2idW( tv->db->strings, str, &data[i] );
2098
2099 /* if there's no matching string in the string table,
2100 these keys can't match any record, so fail now. */
2101 if( ERROR_SUCCESS != r )
2102 {
2103 msi_free( data );
2104 return NULL;
2105 }
2106 }
2107 else
2108 {
2109 data[i] = MSI_RecordGetInteger( rec, i+1 );
2110 if ((tv->columns[i].type&0xff) == 2)
2111 data[i] += 0x8000;
2112 else
2113 data[i] += 0x80000000;
2114 }
2115 }
2116 return data;
2117 }
2118
2119 static UINT msi_row_matches( MSITABLEVIEW *tv, UINT row, const UINT *data )
2120 {
2121 UINT i, r, x, ret = ERROR_FUNCTION_FAILED;
2122
2123 for( i=0; i<tv->num_cols; i++ )
2124 {
2125 if ( ~tv->columns[i].type & MSITYPE_KEY )
2126 continue;
2127
2128 /* turn the transform column value into a row value */
2129 r = TABLE_fetch_int( &tv->view, row, i+1, &x );
2130 if ( r != ERROR_SUCCESS )
2131 {
2132 ERR("TABLE_fetch_int shouldn't fail here\n");
2133 break;
2134 }
2135
2136 /* if this key matches, move to the next column */
2137 if ( x != data[i] )
2138 {
2139 ret = ERROR_FUNCTION_FAILED;
2140 break;
2141 }
2142
2143 ret = ERROR_SUCCESS;
2144 }
2145
2146 return ret;
2147 }
2148
2149 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row )
2150 {
2151 UINT i, r = ERROR_FUNCTION_FAILED, *data;
2152
2153 data = msi_record_to_row( tv, rec );
2154 if( !data )
2155 return r;
2156 for( i = 0; i < tv->table->row_count + tv->table->nonpersistent_row_count; i++ )
2157 {
2158 r = msi_row_matches( tv, i, data );
2159 if( r == ERROR_SUCCESS )
2160 {
2161 *row = i;
2162 break;
2163 }
2164 }
2165 msi_free( data );
2166 return r;
2167 }
2168
2169 typedef struct
2170 {
2171 struct list entry;
2172 LPWSTR name;
2173 } TRANSFORMDATA;
2174
2175 static UINT msi_table_load_transform( MSIDATABASE *db, IStorage *stg,
2176 string_table *st, TRANSFORMDATA *transform,
2177 UINT bytes_per_strref )
2178 {
2179 UINT rawsize = 0;
2180 BYTE *rawdata = NULL;
2181 MSITABLEVIEW *tv = NULL;
2182 UINT r, n, sz, i, mask;
2183 MSIRECORD *rec = NULL;
2184 UINT colcol = 0;
2185 WCHAR coltable[32];
2186 LPWSTR name;
2187
2188 if (!transform)
2189 return ERROR_SUCCESS;
2190
2191 name = transform->name;
2192
2193 coltable[0] = 0;
2194 TRACE("%p %p %p %s\n", db, stg, st, debugstr_w(name) );
2195
2196 /* read the transform data */
2197 read_stream_data( stg, name, TRUE, &rawdata, &rawsize );
2198 if ( !rawdata )
2199 {
2200 TRACE("table %s empty\n", debugstr_w(name) );
2201 return ERROR_INVALID_TABLE;
2202 }
2203
2204 /* create a table view */
2205 r = TABLE_CreateView( db, name, (MSIVIEW**) &tv );
2206 if( r != ERROR_SUCCESS )
2207 goto err;
2208
2209 r = tv->view.ops->execute( &tv->view, NULL );
2210 if( r != ERROR_SUCCESS )
2211 goto err;
2212
2213 TRACE("name = %s columns = %u row_size = %u raw size = %u\n",
2214 debugstr_w(name), tv->num_cols, tv->row_size, rawsize );
2215
2216 /* interpret the data */
2217 r = ERROR_SUCCESS;
2218 for( n=0; n < rawsize; )
2219 {
2220 mask = rawdata[n] | (rawdata[n+1] << 8);
2221
2222 if (mask&1)
2223 {
2224 /*
2225 * if the low bit is set, columns are continuous and
2226 * the number of columns is specified in the high byte
2227 */
2228 sz = 2;
2229 for( i=0; i<tv->num_cols; i++ )
2230 {
2231 if( (tv->columns[i].type & MSITYPE_STRING) &&
2232 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2233 sz += bytes_per_strref;
2234 else
2235 sz += bytes_per_column( &tv->columns[i] );
2236 }
2237 }
2238 else
2239 {
2240 /*
2241 * If the low bit is not set, mask is a bitmask.
2242 * Excepting for key fields, which are always present,
2243 * each bit indicates that a field is present in the transform record.
2244 *
2245 * mask == 0 is a special case ... only the keys will be present
2246 * and it means that this row should be deleted.
2247 */
2248 sz = 2;
2249 for( i=0; i<tv->num_cols; i++ )
2250 {
2251 if( (tv->columns[i].type & MSITYPE_KEY) || ((1<<i)&mask))
2252 {
2253 if( (tv->columns[i].type & MSITYPE_STRING) &&
2254 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2255 sz += bytes_per_strref;
2256 else
2257 sz += bytes_per_column( &tv->columns[i] );
2258 }
2259 }
2260 }
2261
2262 /* check we didn't run of the end of the table */
2263 if ( (n+sz) > rawsize )
2264 {
2265 ERR("borked.\n");
2266 dump_table( st, (USHORT *)rawdata, rawsize );
2267 break;
2268 }
2269
2270 rec = msi_get_transform_record( tv, st, &rawdata[n], bytes_per_strref );
2271 if (rec)
2272 {
2273 if ( mask & 1 )
2274 {
2275 WCHAR table[32];
2276 DWORD sz = 32;
2277 UINT number = MSI_NULL_INTEGER;
2278
2279 TRACE("inserting record\n");
2280
2281 if (!lstrcmpW(name, szColumns))
2282 {
2283 MSI_RecordGetStringW( rec, 1, table, &sz );
2284 number = MSI_RecordGetInteger( rec, 2 );
2285
2286 /*
2287 * Native msi seems writes nul into the Number (2nd) column of
2288 * the _Columns table, only when the columns are from a new table
2289 */
2290 if ( number == MSI_NULL_INTEGER )
2291 {
2292 /* reset the column number on a new table */
2293 if ( lstrcmpW(coltable, table) )
2294 {
2295 colcol = 0;
2296 lstrcpyW( coltable, table );
2297 }
2298
2299 /* fix nul column numbers */
2300 MSI_RecordSetInteger( rec, 2, ++colcol );
2301 }
2302 }
2303
2304 r = TABLE_insert_row( &tv->view, rec, FALSE );
2305 if (r != ERROR_SUCCESS)
2306 ERR("insert row failed\n");
2307
2308 if ( number != MSI_NULL_INTEGER && !lstrcmpW(name, szColumns) )
2309 msi_update_table_columns( db, table );
2310 }
2311 else
2312 {
2313 UINT row = 0;
2314
2315 r = msi_table_find_row( tv, rec, &row );
2316 if (r != ERROR_SUCCESS)
2317 ERR("no matching row to transform\n");
2318 else if ( mask )
2319 {
2320 TRACE("modifying row [%d]:\n", row);
2321 TABLE_set_row( &tv->view, row, rec, mask );
2322 }
2323 else
2324 {
2325 TRACE("deleting row [%d]:\n", row);
2326 TABLE_delete_row( &tv->view, row );
2327 }
2328 }
2329 if( TRACE_ON(msidb) ) dump_record( rec );
2330 msiobj_release( &rec->hdr );
2331 }
2332
2333 n += sz;
2334 }
2335
2336 err:
2337 /* no need to free the table, it's associated with the database */
2338 msi_free( rawdata );
2339 if( tv )
2340 tv->view.ops->delete( &tv->view );
2341
2342 return ERROR_SUCCESS;
2343 }
2344
2345 /*
2346 * msi_table_apply_transform
2347 *
2348 * Enumerate the table transforms in a transform storage and apply each one.
2349 */
2350 UINT msi_table_apply_transform( MSIDATABASE *db, IStorage *stg )
2351 {
2352 struct list transforms;
2353 IEnumSTATSTG *stgenum = NULL;
2354 TRANSFORMDATA *transform;
2355 TRANSFORMDATA *tables = NULL, *columns = NULL;
2356 HRESULT r;
2357 STATSTG stat;
2358 string_table *strings;
2359 UINT ret = ERROR_FUNCTION_FAILED;
2360 UINT bytes_per_strref;
2361
2362 TRACE("%p %p\n", db, stg );
2363
2364 strings = msi_load_string_table( stg, &bytes_per_strref );
2365 if( !strings )
2366 goto end;
2367
2368 r = IStorage_EnumElements( stg, 0, NULL, 0, &stgenum );
2369 if( FAILED( r ) )
2370 goto end;
2371
2372 list_init(&transforms);
2373
2374 while ( TRUE )
2375 {
2376 MSITABLEVIEW *tv = NULL;
2377 WCHAR name[0x40];
2378 ULONG count = 0;
2379
2380 r = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
2381 if ( FAILED( r ) || !count )
2382 break;
2383
2384 decode_streamname( stat.pwcsName, name );
2385 if ( name[0] != 0x4840 )
2386 continue;
2387
2388 if ( !lstrcmpW( name+1, szStringPool ) ||
2389 !lstrcmpW( name+1, szStringData ) )
2390 continue;
2391
2392 transform = msi_alloc_zero( sizeof(TRANSFORMDATA) );
2393 if ( !transform )
2394 break;
2395
2396 list_add_tail( &transforms, &transform->entry );
2397
2398 transform->name = strdupW( name + 1 );
2399
2400 if ( !lstrcmpW( transform->name, szTables ) )
2401 tables = transform;
2402 else if (!lstrcmpW( transform->name, szColumns ) )
2403 columns = transform;
2404
2405 TRACE("transform contains stream %s\n", debugstr_w(name));
2406
2407 /* load the table */
2408 r = TABLE_CreateView( db, transform->name, (MSIVIEW**) &tv );
2409 if( r != ERROR_SUCCESS )
2410 continue;
2411
2412 r = tv->view.ops->execute( &tv->view, NULL );
2413 if( r != ERROR_SUCCESS )
2414 {
2415 tv->view.ops->delete( &tv->view );
2416 continue;
2417 }
2418
2419 tv->view.ops->delete( &tv->view );
2420 }
2421
2422 /*
2423 * Apply _Tables and _Columns transforms first so that
2424 * the table metadata is correct, and empty tables exist.
2425 */
2426 ret = msi_table_load_transform( db, stg, strings, tables, bytes_per_strref );
2427 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2428 goto end;
2429
2430 ret = msi_table_load_transform( db, stg, strings, columns, bytes_per_strref );
2431 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2432 goto end;
2433
2434 ret = ERROR_SUCCESS;
2435
2436 while ( !list_empty( &transforms ) )
2437 {
2438 transform = LIST_ENTRY( list_head( &transforms ), TRANSFORMDATA, entry );
2439
2440 if ( lstrcmpW( transform->name, szColumns ) &&
2441 lstrcmpW( transform->name, szTables ) &&
2442 ret == ERROR_SUCCESS )
2443 {
2444 ret = msi_table_load_transform( db, stg, strings, transform, bytes_per_strref );
2445 }
2446
2447 list_remove( &transform->entry );
2448 msi_free( transform->name );
2449 msi_free( transform );
2450 }
2451
2452 if ( ret == ERROR_SUCCESS )
2453 append_storage_to_db( db, stg );
2454
2455 end:
2456 if ( stgenum )
2457 IEnumSTATSTG_Release( stgenum );
2458 if ( strings )
2459 msi_destroy_stringtable( strings );
2460
2461 return ret;
2462 }
2463
2464 void append_storage_to_db( MSIDATABASE *db, IStorage *stg )
2465 {
2466 MSITRANSFORM *t;
2467
2468 t = msi_alloc( sizeof *t );
2469 t->stg = stg;
2470 IStorage_AddRef( stg );
2471 list_add_tail( &db->transforms, &t->entry );
2472 }
2473
2474 void msi_free_transforms( MSIDATABASE *db )
2475 {
2476 while( !list_empty( &db->transforms ) )
2477 {
2478 MSITRANSFORM *t = LIST_ENTRY( list_head( &db->transforms ),
2479 MSITRANSFORM, entry );
2480 list_remove( &t->entry );
2481 IStorage_Release( t->stg );
2482 msi_free( t );
2483 }
2484 }
Windows API implementation