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push 9ed7f32abbb93ea3a813fd6b1650e5bcfc506606
[wine/hacks.git] / dlls / msi / table.c
bloba8170982451e98d57fe2b3d6c78a094cf10760e2
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 val = msi_addstringW( tv->db->strings, 0, sval, -1, 1,
1327 persistent ? StringPersistent : StringNonPersistent );
1328 }
1329 else if ( 2 == bytes_per_column( &tv->columns[ i ] ) )
1330 {
1331 val = 0x8000 + MSI_RecordGetInteger( rec, i + 1 );
1332 if ( val & 0xffff0000 )
1333 {
1334 ERR("field %u value %d out of range\n", i+1, val - 0x8000 );
1335 return ERROR_FUNCTION_FAILED;
1336 }
1337 }
1338 else
1339 {
1340 INT ival = MSI_RecordGetInteger( rec, i + 1 );
1341 val = ival ^ 0x80000000;
1342 }
1343 }
1344
1345 r = TABLE_set_int( tv, row, i+1, val );
1346 if ( r != ERROR_SUCCESS )
1347 break;
1348 }
1349 return r;
1350 }
1351
1352 static UINT table_create_new_row( struct tagMSIVIEW *view, UINT *num, BOOL temporary )
1353 {
1354 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1355 BYTE **p, *row;
1356 UINT sz;
1357 BYTE ***data_ptr;
1358 UINT *row_count;
1359
1360 TRACE("%p %s\n", view, temporary ? "TRUE" : "FALSE");
1361
1362 if( !tv->table )
1363 return ERROR_INVALID_PARAMETER;
1364
1365 row = msi_alloc_zero( tv->row_size );
1366 if( !row )
1367 return ERROR_NOT_ENOUGH_MEMORY;
1368
1369 if( temporary )
1370 {
1371 row_count = &tv->table->nonpersistent_row_count;
1372 data_ptr = &tv->table->nonpersistent_data;
1373 *num = tv->table->row_count + tv->table->nonpersistent_row_count;
1374 }
1375 else
1376 {
1377 row_count = &tv->table->row_count;
1378 data_ptr = &tv->table->data;
1379 *num = tv->table->row_count;
1380 }
1381
1382 sz = (*row_count + 1) * sizeof (BYTE*);
1383 if( *data_ptr )
1384 p = msi_realloc( *data_ptr, sz );
1385 else
1386 p = msi_alloc( sz );
1387 if( !p )
1388 {
1389 msi_free( row );
1390 return ERROR_NOT_ENOUGH_MEMORY;
1391 }
1392
1393 *data_ptr = p;
1394 (*data_ptr)[*row_count] = row;
1395 (*row_count)++;
1396
1397 return ERROR_SUCCESS;
1398 }
1399
1400 static UINT TABLE_execute( struct tagMSIVIEW *view, MSIRECORD *record )
1401 {
1402 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1403
1404 TRACE("%p %p\n", tv, record);
1405
1406 TRACE("There are %d columns\n", tv->num_cols );
1407
1408 return ERROR_SUCCESS;
1409 }
1410
1411 static UINT TABLE_close( struct tagMSIVIEW *view )
1412 {
1413 TRACE("%p\n", view );
1414
1415 return ERROR_SUCCESS;
1416 }
1417
1418 static UINT TABLE_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols)
1419 {
1420 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1421
1422 TRACE("%p %p %p\n", view, rows, cols );
1423
1424 if( cols )
1425 *cols = tv->num_cols;
1426 if( rows )
1427 {
1428 if( !tv->table )
1429 return ERROR_INVALID_PARAMETER;
1430 *rows = tv->table->row_count + tv->table->nonpersistent_row_count;
1431 }
1432
1433 return ERROR_SUCCESS;
1434 }
1435
1436 static UINT TABLE_get_column_info( struct tagMSIVIEW *view,
1437 UINT n, LPWSTR *name, UINT *type )
1438 {
1439 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1440
1441 TRACE("%p %d %p %p\n", tv, n, name, type );
1442
1443 if( ( n == 0 ) || ( n > tv->num_cols ) )
1444 return ERROR_INVALID_PARAMETER;
1445
1446 if( name )
1447 {
1448 *name = strdupW( tv->columns[n-1].colname );
1449 if( !*name )
1450 return ERROR_FUNCTION_FAILED;
1451 }
1452 if( type )
1453 *type = tv->columns[n-1].type;
1454
1455 return ERROR_SUCCESS;
1456 }
1457
1458 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row );
1459
1460 static UINT table_validate_new( MSITABLEVIEW *tv, MSIRECORD *rec )
1461 {
1462 UINT r, row, i;
1463
1464 /* check there's no null values where they're not allowed */
1465 for( i = 0; i < tv->num_cols; i++ )
1466 {
1467 if ( tv->columns[i].type & MSITYPE_NULLABLE )
1468 continue;
1469
1470 if ( MSITYPE_IS_BINARY(tv->columns[i].type) )
1471 TRACE("skipping binary column\n");
1472 else if ( tv->columns[i].type & MSITYPE_STRING )
1473 {
1474 LPCWSTR str;
1475
1476 str = MSI_RecordGetString( rec, i+1 );
1477 if (str == NULL || str[0] == 0)
1478 return ERROR_INVALID_DATA;
1479 }
1480 else
1481 {
1482 UINT n;
1483
1484 n = MSI_RecordGetInteger( rec, i+1 );
1485 if (n == MSI_NULL_INTEGER)
1486 return ERROR_INVALID_DATA;
1487 }
1488 }
1489
1490 /* check there's no duplicate keys */
1491 r = msi_table_find_row( tv, rec, &row );
1492 if (r == ERROR_SUCCESS)
1493 return ERROR_FUNCTION_FAILED;
1494
1495 return ERROR_SUCCESS;
1496 }
1497
1498 static UINT TABLE_insert_row( struct tagMSIVIEW *view, MSIRECORD *rec, BOOL temporary )
1499 {
1500 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1501 UINT r, row = -1;
1502
1503 TRACE("%p %p %s\n", tv, rec, temporary ? "TRUE" : "FALSE" );
1504
1505 /* check that the key is unique - can we find a matching row? */
1506 r = table_validate_new( tv, rec );
1507 if( r != ERROR_SUCCESS )
1508 return ERROR_FUNCTION_FAILED;
1509
1510 r = table_create_new_row( view, &row, temporary );
1511 TRACE("insert_row returned %08x\n", r);
1512 if( r != ERROR_SUCCESS )
1513 return r;
1514
1515 return TABLE_set_row( view, row, rec, (1<<tv->num_cols) - 1 );
1516 }
1517
1518 static UINT TABLE_delete_row( struct tagMSIVIEW *view, UINT row )
1519 {
1520 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1521 UINT r, num_rows, num_cols;
1522 BYTE *src, *dest;
1523
1524 TRACE("%p %d\n", tv, row);
1525
1526 if ( !tv->table )
1527 return ERROR_INVALID_PARAMETER;
1528
1529 r = TABLE_get_dimensions( view, &num_rows, &num_cols );
1530 if ( r != ERROR_SUCCESS )
1531 return r;
1532
1533 if ( row >= num_rows )
1534 return ERROR_FUNCTION_FAILED;
1535
1536 tv->table->row_count--;
1537
1538 if ( row == num_rows - 1 )
1539 return ERROR_SUCCESS;
1540
1541 dest = tv->table->data[row];
1542 src = tv->table->data[row + 1];
1543 memmove(dest, src, (num_rows - row - 1) * tv->row_size);
1544 return ERROR_SUCCESS;
1545 }
1546
1547 static UINT msi_table_update(struct tagMSIVIEW *view, MSIRECORD *rec, UINT row)
1548 {
1549 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1550 UINT r, new_row;
1551
1552 /* FIXME: MsiViewFetch should set rec index 0 to some ID that
1553 * sets the fetched record apart from other records
1554 */
1555
1556 if (!tv->table)
1557 return ERROR_INVALID_PARAMETER;
1558
1559 r = msi_table_find_row(tv, rec, &new_row);
1560 if (r != ERROR_SUCCESS)
1561 {
1562 ERR("can't find row to modify\n");
1563 return ERROR_FUNCTION_FAILED;
1564 }
1565
1566 /* the row cannot be changed */
1567 if (row != new_row + 1)
1568 return ERROR_FUNCTION_FAILED;
1569
1570 return TABLE_set_row(view, new_row, rec, (1 << tv->num_cols) - 1);
1571 }
1572
1573 static UINT TABLE_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode,
1574 MSIRECORD *rec, UINT row)
1575 {
1576 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1577 UINT r;
1578
1579 TRACE("%p %d %p\n", view, eModifyMode, rec );
1580
1581 switch (eModifyMode)
1582 {
1583 case MSIMODIFY_VALIDATE_NEW:
1584 r = table_validate_new( tv, rec );
1585 break;
1586
1587 case MSIMODIFY_INSERT_TEMPORARY:
1588 r = table_validate_new( tv, rec );
1589 if (r != ERROR_SUCCESS)
1590 break;
1591 r = TABLE_insert_row( view, rec, TRUE );
1592 break;
1593
1594 case MSIMODIFY_UPDATE:
1595 r = msi_table_update( view, rec, row );
1596 break;
1597
1598 case MSIMODIFY_REFRESH:
1599 case MSIMODIFY_INSERT:
1600 case MSIMODIFY_ASSIGN:
1601 case MSIMODIFY_REPLACE:
1602 case MSIMODIFY_MERGE:
1603 case MSIMODIFY_DELETE:
1604 case MSIMODIFY_VALIDATE:
1605 case MSIMODIFY_VALIDATE_FIELD:
1606 case MSIMODIFY_VALIDATE_DELETE:
1607 FIXME("%p %d %p - mode not implemented\n", view, eModifyMode, rec );
1608 r = ERROR_CALL_NOT_IMPLEMENTED;
1609 break;
1610
1611 default:
1612 r = ERROR_INVALID_DATA;
1613 }
1614
1615 return r;
1616 }
1617
1618 static UINT TABLE_delete( struct tagMSIVIEW *view )
1619 {
1620 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1621
1622 TRACE("%p\n", view );
1623
1624 tv->table = NULL;
1625
1626 tv->columns = NULL;
1627
1628 msi_free( tv );
1629
1630 return ERROR_SUCCESS;
1631 }
1632
1633 static UINT TABLE_find_matching_rows( struct tagMSIVIEW *view, UINT col,
1634 UINT val, UINT *row, MSIITERHANDLE *handle )
1635 {
1636 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1637 const MSICOLUMNHASHENTRY *entry;
1638
1639 TRACE("%p, %d, %u, %p\n", view, col, val, *handle);
1640
1641 if( !tv->table )
1642 return ERROR_INVALID_PARAMETER;
1643
1644 if( (col==0) || (col > tv->num_cols) )
1645 return ERROR_INVALID_PARAMETER;
1646
1647 if( !tv->columns[col-1].hash_table )
1648 {
1649 UINT i;
1650 UINT num_rows = tv->table->row_count + tv->table->nonpersistent_row_count;
1651 MSICOLUMNHASHENTRY **hash_table;
1652 MSICOLUMNHASHENTRY *new_entry;
1653
1654 if( tv->columns[col-1].offset >= tv->row_size )
1655 {
1656 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1657 ERR("%p %p\n", tv, tv->columns );
1658 return ERROR_FUNCTION_FAILED;
1659 }
1660
1661 /* allocate contiguous memory for the table and its entries so we
1662 * don't have to do an expensive cleanup */
1663 hash_table = msi_alloc(MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*) +
1664 num_rows * sizeof(MSICOLUMNHASHENTRY));
1665 if (!hash_table)
1666 return ERROR_OUTOFMEMORY;
1667
1668 memset(hash_table, 0, MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*));
1669 tv->columns[col-1].hash_table = hash_table;
1670
1671 new_entry = (MSICOLUMNHASHENTRY *)(hash_table + MSITABLE_HASH_TABLE_SIZE);
1672
1673 for (i = 0; i < num_rows; i++, new_entry++)
1674 {
1675 UINT row_value;
1676
1677 if (view->ops->fetch_int( view, i, col, &row_value ) != ERROR_SUCCESS)
1678 continue;
1679
1680 new_entry->next = NULL;
1681 new_entry->value = row_value;
1682 new_entry->row = i;
1683 if (hash_table[row_value % MSITABLE_HASH_TABLE_SIZE])
1684 {
1685 MSICOLUMNHASHENTRY *prev_entry = hash_table[row_value % MSITABLE_HASH_TABLE_SIZE];
1686 while (prev_entry->next)
1687 prev_entry = prev_entry->next;
1688 prev_entry->next = new_entry;
1689 }
1690 else
1691 hash_table[row_value % MSITABLE_HASH_TABLE_SIZE] = new_entry;
1692 }
1693 }
1694
1695 if( !*handle )
1696 entry = tv->columns[col-1].hash_table[val % MSITABLE_HASH_TABLE_SIZE];
1697 else
1698 entry = (*handle)->next;
1699
1700 while (entry && entry->value != val)
1701 entry = entry->next;
1702
1703 *handle = entry;
1704 if (!entry)
1705 return ERROR_NO_MORE_ITEMS;
1706
1707 *row = entry->row;
1708 return ERROR_SUCCESS;
1709 }
1710
1711 static UINT TABLE_add_ref(struct tagMSIVIEW *view)
1712 {
1713 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1714 int i;
1715
1716 TRACE("%p %d\n", view, tv->table->ref_count);
1717
1718 for (i = 0; i < tv->table->col_count; i++)
1719 {
1720 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
1721 InterlockedIncrement(&tv->table->colinfo[i].ref_count);
1722 }
1723
1724 return InterlockedIncrement(&tv->table->ref_count);
1725 }
1726
1727 static UINT TABLE_remove_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number)
1728 {
1729 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1730 MSIRECORD *rec = NULL;
1731 MSIVIEW *columns = NULL;
1732 UINT row, r;
1733
1734 rec = MSI_CreateRecord(2);
1735 if (!rec)
1736 return ERROR_OUTOFMEMORY;
1737
1738 MSI_RecordSetStringW(rec, 1, table);
1739 MSI_RecordSetInteger(rec, 2, number);
1740
1741 r = TABLE_CreateView(tv->db, szColumns, &columns);
1742 if (r != ERROR_SUCCESS)
1743 return r;
1744
1745 r = msi_table_find_row((MSITABLEVIEW *)columns, rec, &row);
1746 if (r != ERROR_SUCCESS)
1747 goto done;
1748
1749 r = TABLE_delete_row(columns, row);
1750 if (r != ERROR_SUCCESS)
1751 goto done;
1752
1753 msi_update_table_columns(tv->db, table);
1754
1755 done:
1756 msiobj_release(&rec->hdr);
1757 if (columns) columns->ops->delete(columns);
1758 return r;
1759 }
1760
1761 static UINT TABLE_release(struct tagMSIVIEW *view)
1762 {
1763 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1764 INT ref = tv->table->ref_count;
1765 int i;
1766 UINT r;
1767
1768 TRACE("%p %d\n", view, ref);
1769
1770 for (i = 0; i < tv->table->col_count; i++)
1771 {
1772 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
1773 {
1774 ref = InterlockedDecrement(&tv->table->colinfo[i].ref_count);
1775 if (ref == 0)
1776 {
1777 r = TABLE_remove_column(view, tv->table->colinfo[i].tablename,
1778 tv->table->colinfo[i].number);
1779 if (r != ERROR_SUCCESS)
1780 break;
1781 }
1782 }
1783 }
1784
1785 ref = InterlockedDecrement(&tv->table->ref_count);
1786 if (ref == 0)
1787 {
1788 if (!tv->table->row_count)
1789 {
1790 list_remove(&tv->table->entry);
1791 free_table(tv->table);
1792 TABLE_delete(view);
1793 }
1794 }
1795
1796 return ref;
1797 }
1798
1799 static UINT TABLE_add_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number,
1800 LPCWSTR column, UINT type, BOOL hold)
1801 {
1802 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1803 MSITABLE *msitable;
1804 MSIRECORD *rec;
1805 UINT r, i;
1806
1807 rec = MSI_CreateRecord(4);
1808 if (!rec)
1809 return ERROR_OUTOFMEMORY;
1810
1811 MSI_RecordSetStringW(rec, 1, table);
1812 MSI_RecordSetInteger(rec, 2, number);
1813 MSI_RecordSetStringW(rec, 3, column);
1814 MSI_RecordSetInteger(rec, 4, type);
1815
1816 r = TABLE_insert_row(&tv->view, rec, FALSE);
1817 if (r != ERROR_SUCCESS)
1818 goto done;
1819
1820 msi_update_table_columns(tv->db, table);
1821
1822 if (!hold)
1823 goto done;
1824
1825 msitable = find_cached_table(tv->db, table);
1826 for (i = 0; i < msitable->col_count; i++)
1827 {
1828 if (!lstrcmpW(msitable->colinfo[i].colname, column))
1829 {
1830 InterlockedIncrement(&msitable->colinfo[i].ref_count);
1831 break;
1832 }
1833 }
1834
1835 done:
1836 msiobj_release(&rec->hdr);
1837 return r;
1838 }
1839
1840 static const MSIVIEWOPS table_ops =
1841 {
1842 TABLE_fetch_int,
1843 TABLE_fetch_stream,
1844 TABLE_get_row,
1845 TABLE_set_row,
1846 TABLE_insert_row,
1847 TABLE_delete_row,
1848 TABLE_execute,
1849 TABLE_close,
1850 TABLE_get_dimensions,
1851 TABLE_get_column_info,
1852 TABLE_modify,
1853 TABLE_delete,
1854 TABLE_find_matching_rows,
1855 TABLE_add_ref,
1856 TABLE_release,
1857 TABLE_add_column,
1858 TABLE_remove_column,
1859 };
1860
1861 UINT TABLE_CreateView( MSIDATABASE *db, LPCWSTR name, MSIVIEW **view )
1862 {
1863 MSITABLEVIEW *tv ;
1864 UINT r, sz;
1865
1866 static const WCHAR Streams[] = {'_','S','t','r','e','a','m','s',0};
1867
1868 TRACE("%p %s %p\n", db, debugstr_w(name), view );
1869
1870 if ( !lstrcmpW( name, Streams ) )
1871 return STREAMS_CreateView( db, view );
1872
1873 sz = sizeof *tv + lstrlenW(name)*sizeof name[0] ;
1874 tv = msi_alloc_zero( sz );
1875 if( !tv )
1876 return ERROR_FUNCTION_FAILED;
1877
1878 r = get_table( db, name, &tv->table );
1879 if( r != ERROR_SUCCESS )
1880 {
1881 msi_free( tv );
1882 WARN("table not found\n");
1883 return r;
1884 }
1885
1886 TRACE("table %p found with %d columns\n", tv->table, tv->table->col_count);
1887
1888 /* fill the structure */
1889 tv->view.ops = &table_ops;
1890 tv->db = db;
1891 tv->columns = tv->table->colinfo;
1892 tv->num_cols = tv->table->col_count;
1893 tv->row_size = msi_table_get_row_size( tv->table->colinfo, tv->table->col_count );
1894
1895 TRACE("%s one row is %d bytes\n", debugstr_w(name), tv->row_size );
1896
1897 *view = (MSIVIEW*) tv;
1898 lstrcpyW( tv->name, name );
1899
1900 return ERROR_SUCCESS;
1901 }
1902
1903 UINT MSI_CommitTables( MSIDATABASE *db )
1904 {
1905 UINT r;
1906 MSITABLE *table = NULL;
1907
1908 TRACE("%p\n",db);
1909
1910 r = msi_save_string_table( db->strings, db->storage );
1911 if( r != ERROR_SUCCESS )
1912 {
1913 WARN("failed to save string table r=%08x\n",r);
1914 return r;
1915 }
1916
1917 LIST_FOR_EACH_ENTRY( table, &db->tables, MSITABLE, entry )
1918 {
1919 r = save_table( db, table );
1920 if( r != ERROR_SUCCESS )
1921 {
1922 WARN("failed to save table %s (r=%08x)\n",
1923 debugstr_w(table->name), r);
1924 return r;
1925 }
1926 }
1927
1928 /* force everything to reload next time */
1929 free_cached_tables( db );
1930
1931 return ERROR_SUCCESS;
1932 }
1933
1934 MSICONDITION MSI_DatabaseIsTablePersistent( MSIDATABASE *db, LPCWSTR table )
1935 {
1936 MSITABLE *t;
1937 UINT r;
1938
1939 TRACE("%p %s\n", db, debugstr_w(table));
1940
1941 if (!table)
1942 return MSICONDITION_ERROR;
1943
1944 r = get_table( db, table, &t );
1945 if (r != ERROR_SUCCESS)
1946 return MSICONDITION_NONE;
1947
1948 if (t->persistent)
1949 return MSICONDITION_TRUE;
1950 else
1951 return MSICONDITION_FALSE;
1952 }
1953
1954 static UINT read_raw_int(const BYTE *data, UINT col, UINT bytes)
1955 {
1956 UINT ret = 0, i;
1957
1958 for (i = 0; i < bytes; i++)
1959 ret += (data[col + i] << i * 8);
1960
1961 return ret;
1962 }
1963
1964 static MSIRECORD *msi_get_transform_record( const MSITABLEVIEW *tv, const string_table *st,
1965 const BYTE *rawdata, UINT bytes_per_strref )
1966 {
1967 UINT i, val, ofs = 0;
1968 USHORT mask;
1969 MSICOLUMNINFO *columns = tv->columns;
1970 MSIRECORD *rec;
1971
1972 mask = rawdata[0] | (rawdata[1] << 8);
1973 rawdata += 2;
1974
1975 rec = MSI_CreateRecord( tv->num_cols );
1976 if( !rec )
1977 return rec;
1978
1979 TRACE("row ->\n");
1980 for( i=0; i<tv->num_cols; i++ )
1981 {
1982 if ( (mask&1) && (i>=(mask>>8)) )
1983 break;
1984 /* all keys must be present */
1985 if ( (~mask&1) && (~columns[i].type & MSITYPE_KEY) && ((1<<i) & ~mask) )
1986 continue;
1987
1988 if( (columns[i].type & MSITYPE_STRING) &&
1989 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
1990 {
1991 LPCWSTR sval;
1992
1993 val = read_raw_int(rawdata, ofs, bytes_per_strref);
1994 sval = msi_string_lookup_id( st, val );
1995 MSI_RecordSetStringW( rec, i+1, sval );
1996 TRACE(" field %d [%s]\n", i+1, debugstr_w(sval));
1997 ofs += bytes_per_strref;
1998 }
1999 else
2000 {
2001 UINT n = bytes_per_column( &columns[i] );
2002 switch( n )
2003 {
2004 case 2:
2005 val = read_raw_int(rawdata, ofs, n);
2006 if (val)
2007 MSI_RecordSetInteger( rec, i+1, val^0x8000 );
2008 TRACE(" field %d [0x%04x]\n", i+1, val );
2009 break;
2010 case 4:
2011 val = read_raw_int(rawdata, ofs, n);
2012 if (val)
2013 MSI_RecordSetInteger( rec, i+1, val^0x80000000 );
2014 TRACE(" field %d [0x%08x]\n", i+1, val );
2015 break;
2016 default:
2017 ERR("oops - unknown column width %d\n", n);
2018 break;
2019 }
2020 ofs += n;
2021 }
2022 }
2023 return rec;
2024 }
2025
2026 static void dump_record( MSIRECORD *rec )
2027 {
2028 UINT i, n;
2029
2030 n = MSI_RecordGetFieldCount( rec );
2031 for( i=1; i<=n; i++ )
2032 {
2033 LPCWSTR sval = MSI_RecordGetString( rec, i );
2034
2035 if( MSI_RecordIsNull( rec, i ) )
2036 TRACE("row -> []\n");
2037 else if( (sval = MSI_RecordGetString( rec, i )) )
2038 TRACE("row -> [%s]\n", debugstr_w(sval));
2039 else
2040 TRACE("row -> [0x%08x]\n", MSI_RecordGetInteger( rec, i ) );
2041 }
2042 }
2043
2044 static void dump_table( const string_table *st, const USHORT *rawdata, UINT rawsize )
2045 {
2046 LPCWSTR sval;
2047 UINT i;
2048
2049 for( i=0; i<(rawsize/2); i++ )
2050 {
2051 sval = msi_string_lookup_id( st, rawdata[i] );
2052 MESSAGE(" %04x %s\n", rawdata[i], debugstr_w(sval) );
2053 }
2054 }
2055
2056 static UINT* msi_record_to_row( const MSITABLEVIEW *tv, MSIRECORD *rec )
2057 {
2058 LPCWSTR str;
2059 UINT i, r, *data;
2060
2061 data = msi_alloc( tv->num_cols *sizeof (UINT) );
2062 for( i=0; i<tv->num_cols; i++ )
2063 {
2064 data[i] = 0;
2065
2066 if ( ~tv->columns[i].type & MSITYPE_KEY )
2067 continue;
2068
2069 /* turn the transform column value into a row value */
2070 if ( ( tv->columns[i].type & MSITYPE_STRING ) &&
2071 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2072 {
2073 str = MSI_RecordGetString( rec, i+1 );
2074 r = msi_string2idW( tv->db->strings, str, &data[i] );
2075
2076 /* if there's no matching string in the string table,
2077 these keys can't match any record, so fail now. */
2078 if( ERROR_SUCCESS != r )
2079 {
2080 msi_free( data );
2081 return NULL;
2082 }
2083 }
2084 else
2085 {
2086 data[i] = MSI_RecordGetInteger( rec, i+1 );
2087 if ((tv->columns[i].type&0xff) == 2)
2088 data[i] += 0x8000;
2089 else
2090 data[i] += 0x80000000;
2091 }
2092 }
2093 return data;
2094 }
2095
2096 static UINT msi_row_matches( MSITABLEVIEW *tv, UINT row, const UINT *data )
2097 {
2098 UINT i, r, x, ret = ERROR_FUNCTION_FAILED;
2099
2100 for( i=0; i<tv->num_cols; i++ )
2101 {
2102 if ( ~tv->columns[i].type & MSITYPE_KEY )
2103 continue;
2104
2105 /* turn the transform column value into a row value */
2106 r = TABLE_fetch_int( &tv->view, row, i+1, &x );
2107 if ( r != ERROR_SUCCESS )
2108 {
2109 ERR("TABLE_fetch_int shouldn't fail here\n");
2110 break;
2111 }
2112
2113 /* if this key matches, move to the next column */
2114 if ( x != data[i] )
2115 {
2116 ret = ERROR_FUNCTION_FAILED;
2117 break;
2118 }
2119
2120 ret = ERROR_SUCCESS;
2121 }
2122
2123 return ret;
2124 }
2125
2126 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row )
2127 {
2128 UINT i, r = ERROR_FUNCTION_FAILED, *data;
2129
2130 data = msi_record_to_row( tv, rec );
2131 if( !data )
2132 return r;
2133 for( i = 0; i < tv->table->row_count + tv->table->nonpersistent_row_count; i++ )
2134 {
2135 r = msi_row_matches( tv, i, data );
2136 if( r == ERROR_SUCCESS )
2137 {
2138 *row = i;
2139 break;
2140 }
2141 }
2142 msi_free( data );
2143 return r;
2144 }
2145
2146 typedef struct
2147 {
2148 struct list entry;
2149 LPWSTR name;
2150 } TRANSFORMDATA;
2151
2152 static UINT msi_table_load_transform( MSIDATABASE *db, IStorage *stg,
2153 string_table *st, TRANSFORMDATA *transform,
2154 UINT bytes_per_strref )
2155 {
2156 UINT rawsize = 0;
2157 BYTE *rawdata = NULL;
2158 MSITABLEVIEW *tv = NULL;
2159 UINT r, n, sz, i, mask;
2160 MSIRECORD *rec = NULL;
2161 UINT colcol = 0;
2162 WCHAR coltable[32];
2163 LPWSTR name;
2164
2165 if (!transform)
2166 return ERROR_SUCCESS;
2167
2168 name = transform->name;
2169
2170 coltable[0] = 0;
2171 TRACE("%p %p %p %s\n", db, stg, st, debugstr_w(name) );
2172
2173 /* read the transform data */
2174 read_stream_data( stg, name, TRUE, &rawdata, &rawsize );
2175 if ( !rawdata )
2176 {
2177 TRACE("table %s empty\n", debugstr_w(name) );
2178 return ERROR_INVALID_TABLE;
2179 }
2180
2181 /* create a table view */
2182 r = TABLE_CreateView( db, name, (MSIVIEW**) &tv );
2183 if( r != ERROR_SUCCESS )
2184 goto err;
2185
2186 r = tv->view.ops->execute( &tv->view, NULL );
2187 if( r != ERROR_SUCCESS )
2188 goto err;
2189
2190 TRACE("name = %s columns = %u row_size = %u raw size = %u\n",
2191 debugstr_w(name), tv->num_cols, tv->row_size, rawsize );
2192
2193 /* interpret the data */
2194 r = ERROR_SUCCESS;
2195 for( n=0; n < rawsize; )
2196 {
2197 mask = rawdata[n] | (rawdata[n+1] << 8);
2198
2199 if (mask&1)
2200 {
2201 /*
2202 * if the low bit is set, columns are continuous and
2203 * the number of columns is specified in the high byte
2204 */
2205 sz = 2;
2206 for( i=0; i<tv->num_cols; i++ )
2207 {
2208 if( (tv->columns[i].type & MSITYPE_STRING) &&
2209 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2210 sz += bytes_per_strref;
2211 else
2212 sz += bytes_per_column( &tv->columns[i] );
2213 }
2214 }
2215 else
2216 {
2217 /*
2218 * If the low bit is not set, mask is a bitmask.
2219 * Excepting for key fields, which are always present,
2220 * each bit indicates that a field is present in the transform record.
2221 *
2222 * mask == 0 is a special case ... only the keys will be present
2223 * and it means that this row should be deleted.
2224 */
2225 sz = 2;
2226 for( i=0; i<tv->num_cols; i++ )
2227 {
2228 if( (tv->columns[i].type & MSITYPE_KEY) || ((1<<i)&mask))
2229 {
2230 if( (tv->columns[i].type & MSITYPE_STRING) &&
2231 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2232 sz += bytes_per_strref;
2233 else
2234 sz += bytes_per_column( &tv->columns[i] );
2235 }
2236 }
2237 }
2238
2239 /* check we didn't run of the end of the table */
2240 if ( (n+sz) > rawsize )
2241 {
2242 ERR("borked.\n");
2243 dump_table( st, (USHORT *)rawdata, rawsize );
2244 break;
2245 }
2246
2247 rec = msi_get_transform_record( tv, st, &rawdata[n], bytes_per_strref );
2248 if (rec)
2249 {
2250 if ( mask & 1 )
2251 {
2252 WCHAR table[32];
2253 DWORD sz = 32;
2254 UINT number = MSI_NULL_INTEGER;
2255
2256 TRACE("inserting record\n");
2257
2258 if (!lstrcmpW(name, szColumns))
2259 {
2260 MSI_RecordGetStringW( rec, 1, table, &sz );
2261 number = MSI_RecordGetInteger( rec, 2 );
2262
2263 /*
2264 * Native msi seems writes nul into the Number (2nd) column of
2265 * the _Columns table, only when the columns are from a new table
2266 */
2267 if ( number == MSI_NULL_INTEGER )
2268 {
2269 /* reset the column number on a new table */
2270 if ( lstrcmpW(coltable, table) )
2271 {
2272 colcol = 0;
2273 lstrcpyW( coltable, table );
2274 }
2275
2276 /* fix nul column numbers */
2277 MSI_RecordSetInteger( rec, 2, ++colcol );
2278 }
2279 }
2280
2281 r = TABLE_insert_row( &tv->view, rec, FALSE );
2282 if (r != ERROR_SUCCESS)
2283 ERR("insert row failed\n");
2284
2285 if ( number != MSI_NULL_INTEGER && !lstrcmpW(name, szColumns) )
2286 msi_update_table_columns( db, table );
2287 }
2288 else
2289 {
2290 UINT row = 0;
2291
2292 r = msi_table_find_row( tv, rec, &row );
2293 if (r != ERROR_SUCCESS)
2294 ERR("no matching row to transform\n");
2295 else if ( mask )
2296 {
2297 TRACE("modifying row [%d]:\n", row);
2298 TABLE_set_row( &tv->view, row, rec, mask );
2299 }
2300 else
2301 {
2302 TRACE("deleting row [%d]:\n", row);
2303 TABLE_delete_row( &tv->view, row );
2304 }
2305 }
2306 if( TRACE_ON(msidb) ) dump_record( rec );
2307 msiobj_release( &rec->hdr );
2308 }
2309
2310 n += sz;
2311 }
2312
2313 err:
2314 /* no need to free the table, it's associated with the database */
2315 msi_free( rawdata );
2316 if( tv )
2317 tv->view.ops->delete( &tv->view );
2318
2319 return ERROR_SUCCESS;
2320 }
2321
2322 /*
2323 * msi_table_apply_transform
2324 *
2325 * Enumerate the table transforms in a transform storage and apply each one.
2326 */
2327 UINT msi_table_apply_transform( MSIDATABASE *db, IStorage *stg )
2328 {
2329 struct list transforms;
2330 IEnumSTATSTG *stgenum = NULL;
2331 TRANSFORMDATA *transform;
2332 TRANSFORMDATA *tables = NULL, *columns = NULL;
2333 HRESULT r;
2334 STATSTG stat;
2335 string_table *strings;
2336 UINT ret = ERROR_FUNCTION_FAILED;
2337 UINT bytes_per_strref;
2338
2339 TRACE("%p %p\n", db, stg );
2340
2341 strings = msi_load_string_table( stg, &bytes_per_strref );
2342 if( !strings )
2343 goto end;
2344
2345 r = IStorage_EnumElements( stg, 0, NULL, 0, &stgenum );
2346 if( FAILED( r ) )
2347 goto end;
2348
2349 list_init(&transforms);
2350
2351 while ( TRUE )
2352 {
2353 MSITABLEVIEW *tv = NULL;
2354 WCHAR name[0x40];
2355 ULONG count = 0;
2356
2357 r = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
2358 if ( FAILED( r ) || !count )
2359 break;
2360
2361 decode_streamname( stat.pwcsName, name );
2362 if ( name[0] != 0x4840 )
2363 continue;
2364
2365 if ( !lstrcmpW( name+1, szStringPool ) ||
2366 !lstrcmpW( name+1, szStringData ) )
2367 continue;
2368
2369 transform = msi_alloc_zero( sizeof(TRANSFORMDATA) );
2370 if ( !transform )
2371 break;
2372
2373 list_add_tail( &transforms, &transform->entry );
2374
2375 transform->name = strdupW( name + 1 );
2376
2377 if ( !lstrcmpW( transform->name, szTables ) )
2378 tables = transform;
2379 else if (!lstrcmpW( transform->name, szColumns ) )
2380 columns = transform;
2381
2382 TRACE("transform contains stream %s\n", debugstr_w(name));
2383
2384 /* load the table */
2385 r = TABLE_CreateView( db, transform->name, (MSIVIEW**) &tv );
2386 if( r != ERROR_SUCCESS )
2387 continue;
2388
2389 r = tv->view.ops->execute( &tv->view, NULL );
2390 if( r != ERROR_SUCCESS )
2391 {
2392 tv->view.ops->delete( &tv->view );
2393 continue;
2394 }
2395
2396 tv->view.ops->delete( &tv->view );
2397 }
2398
2399 /*
2400 * Apply _Tables and _Columns transforms first so that
2401 * the table metadata is correct, and empty tables exist.
2402 */
2403 ret = msi_table_load_transform( db, stg, strings, tables, bytes_per_strref );
2404 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2405 goto end;
2406
2407 ret = msi_table_load_transform( db, stg, strings, columns, bytes_per_strref );
2408 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2409 goto end;
2410
2411 ret = ERROR_SUCCESS;
2412
2413 while ( !list_empty( &transforms ) )
2414 {
2415 transform = LIST_ENTRY( list_head( &transforms ), TRANSFORMDATA, entry );
2416
2417 if ( lstrcmpW( transform->name, szColumns ) &&
2418 lstrcmpW( transform->name, szTables ) &&
2419 ret == ERROR_SUCCESS )
2420 {
2421 ret = msi_table_load_transform( db, stg, strings, transform, bytes_per_strref );
2422 }
2423
2424 list_remove( &transform->entry );
2425 msi_free( transform->name );
2426 msi_free( transform );
2427 }
2428
2429 if ( ret == ERROR_SUCCESS )
2430 append_storage_to_db( db, stg );
2431
2432 end:
2433 if ( stgenum )
2434 IEnumSTATSTG_Release( stgenum );
2435 if ( strings )
2436 msi_destroy_stringtable( strings );
2437
2438 return ret;
2439 }
2440
2441 void append_storage_to_db( MSIDATABASE *db, IStorage *stg )
2442 {
2443 MSITRANSFORM *t;
2444
2445 t = msi_alloc( sizeof *t );
2446 t->stg = stg;
2447 IStorage_AddRef( stg );
2448 list_add_tail( &db->transforms, &t->entry );
2449 }
2450
2451 void msi_free_transforms( MSIDATABASE *db )
2452 {
2453 while( !list_empty( &db->transforms ) )
2454 {
2455 MSITRANSFORM *t = LIST_ENTRY( list_head( &db->transforms ),
2456 MSITRANSFORM, entry );
2457 list_remove( &t->entry );
2458 IStorage_Release( t->stg );
2459 msi_free( t );
2460 }
2461 }
useful hacks and other patches not (yet) suitable for mainline