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rasapi32: Added some more tests for RasEnumDevicesA, fix Wine not to crash on the...
[wine/multimedia.git] / dlls / msi / table.c
blob13c61d4b8064887ecd47c72ae7754bb5478eea16
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 typedef struct tagMSIORDERINFO
66 {
67 UINT *reorder;
68 UINT num_cols;
69 UINT cols[1];
70 } MSIORDERINFO;
71
72 struct tagMSITABLE
73 {
74 BYTE **data;
75 UINT row_count;
76 BYTE **nonpersistent_data;
77 UINT nonpersistent_row_count;
78 struct list entry;
79 MSICOLUMNINFO *colinfo;
80 UINT col_count;
81 BOOL persistent;
82 INT ref_count;
83 WCHAR name[1];
84 };
85
86 typedef struct tagMSITRANSFORM {
87 struct list entry;
88 IStorage *stg;
89 } MSITRANSFORM;
90
91 static const WCHAR szStringData[] = {
92 '_','S','t','r','i','n','g','D','a','t','a',0 };
93 static const WCHAR szStringPool[] = {
94 '_','S','t','r','i','n','g','P','o','o','l',0 };
95
96 /* information for default tables */
97 static WCHAR szTables[] = { '_','T','a','b','l','e','s',0 };
98 static WCHAR szTable[] = { 'T','a','b','l','e',0 };
99 static WCHAR szName[] = { 'N','a','m','e',0 };
100 static WCHAR szColumns[] = { '_','C','o','l','u','m','n','s',0 };
101 static WCHAR szNumber[] = { 'N','u','m','b','e','r',0 };
102 static WCHAR szType[] = { 'T','y','p','e',0 };
103
104 /* These tables are written into (the .hash_table part).
105 * Do not mark them const.
106 */
107 static MSICOLUMNINFO _Columns_cols[4] = {
108 { szColumns, 1, szTable, MSITYPE_VALID | MSITYPE_STRING | MSITYPE_KEY | 64, 0, 0, NULL },
109 { szColumns, 2, szNumber, MSITYPE_VALID | MSITYPE_KEY | 2, 2, 0, NULL },
110 { szColumns, 3, szName, MSITYPE_VALID | MSITYPE_STRING | 64, 4, 0, NULL },
111 { szColumns, 4, szType, MSITYPE_VALID | 2, 6, 0, NULL },
112 };
113 static MSICOLUMNINFO _Tables_cols[1] = {
114 { szTables, 1, szName, MSITYPE_VALID | MSITYPE_STRING | 64, 0, 0, NULL },
115 };
116
117 #define MAX_STREAM_NAME 0x1f
118
119 static UINT table_get_column_info( MSIDATABASE *db, LPCWSTR name,
120 MSICOLUMNINFO **pcols, UINT *pcount );
121 static void table_calc_column_offsets( MSICOLUMNINFO *colinfo, DWORD count );
122 static UINT get_tablecolumns( MSIDATABASE *db,
123 LPCWSTR szTableName, MSICOLUMNINFO *colinfo, UINT *sz);
124 static void msi_free_colinfo( MSICOLUMNINFO *colinfo, UINT count );
125
126
127 void msi_table_set_strref(UINT bytes_per_strref)
128 {
129 _Columns_cols[0].offset = 0;
130 _Columns_cols[1].offset = bytes_per_strref;
131 _Columns_cols[2].offset = _Columns_cols[1].offset + sizeof(USHORT);
132 _Columns_cols[3].offset = _Columns_cols[2].offset + bytes_per_strref;
133 }
134
135 static inline UINT bytes_per_column( const MSICOLUMNINFO *col )
136 {
137 if( MSITYPE_IS_BINARY(col->type) )
138 return 2;
139 if( col->type & MSITYPE_STRING )
140 return _Columns_cols[1].offset;
141 if( (col->type & 0xff) > 4 )
142 ERR("Invalid column size!\n");
143 return col->type & 0xff;
144 }
145
146 static int utf2mime(int x)
147 {
148 if( (x>='0') && (x<='9') )
149 return x-'0';
150 if( (x>='A') && (x<='Z') )
151 return x-'A'+10;
152 if( (x>='a') && (x<='z') )
153 return x-'a'+10+26;
154 if( x=='.' )
155 return 10+26+26;
156 if( x=='_' )
157 return 10+26+26+1;
158 return -1;
159 }
160
161 LPWSTR encode_streamname(BOOL bTable, LPCWSTR in)
162 {
163 DWORD count = MAX_STREAM_NAME;
164 DWORD ch, next;
165 LPWSTR out, p;
166
167 if( !bTable )
168 count = lstrlenW( in )+2;
169 out = msi_alloc( count*sizeof(WCHAR) );
170 p = out;
171
172 if( bTable )
173 {
174 *p++ = 0x4840;
175 count --;
176 }
177 while( count -- )
178 {
179 ch = *in++;
180 if( !ch )
181 {
182 *p = ch;
183 return out;
184 }
185 if( ( ch < 0x80 ) && ( utf2mime(ch) >= 0 ) )
186 {
187 ch = utf2mime(ch) + 0x4800;
188 next = *in;
189 if( next && (next<0x80) )
190 {
191 next = utf2mime(next);
192 if( next != -1 )
193 {
194 next += 0x3ffffc0;
195 ch += (next<<6);
196 in++;
197 }
198 }
199 }
200 *p++ = ch;
201 }
202 ERR("Failed to encode stream name (%s)\n",debugstr_w(in));
203 msi_free( out );
204 return NULL;
205 }
206
207 static int mime2utf(int x)
208 {
209 if( x<10 )
210 return x + '0';
211 if( x<(10+26))
212 return x - 10 + 'A';
213 if( x<(10+26+26))
214 return x - 10 - 26 + 'a';
215 if( x == (10+26+26) )
216 return '.';
217 return '_';
218 }
219
220 BOOL decode_streamname(LPCWSTR in, LPWSTR out)
221 {
222 WCHAR ch;
223 DWORD count = 0;
224
225 while ( (ch = *in++) )
226 {
227 if( (ch >= 0x3800 ) && (ch < 0x4840 ) )
228 {
229 if( ch >= 0x4800 )
230 ch = mime2utf(ch-0x4800);
231 else
232 {
233 ch -= 0x3800;
234 *out++ = mime2utf(ch&0x3f);
235 count++;
236 ch = mime2utf((ch>>6)&0x3f);
237 }
238 }
239 *out++ = ch;
240 count++;
241 }
242 *out = 0;
243 return count;
244 }
245
246 void enum_stream_names( IStorage *stg )
247 {
248 IEnumSTATSTG *stgenum = NULL;
249 HRESULT r;
250 STATSTG stat;
251 ULONG n, count;
252 WCHAR name[0x40];
253
254 r = IStorage_EnumElements( stg, 0, NULL, 0, &stgenum );
255 if( FAILED( r ) )
256 return;
257
258 n = 0;
259 while( 1 )
260 {
261 count = 0;
262 r = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
263 if( FAILED( r ) || !count )
264 break;
265 decode_streamname( stat.pwcsName, name );
266 TRACE("stream %2d -> %s %s\n", n,
267 debugstr_w(stat.pwcsName), debugstr_w(name) );
268 CoTaskMemFree( stat.pwcsName );
269 n++;
270 }
271
272 IEnumSTATSTG_Release( stgenum );
273 }
274
275 UINT read_stream_data( IStorage *stg, LPCWSTR stname, BOOL table,
276 BYTE **pdata, UINT *psz )
277 {
278 HRESULT r;
279 UINT ret = ERROR_FUNCTION_FAILED;
280 VOID *data;
281 ULONG sz, count;
282 IStream *stm = NULL;
283 STATSTG stat;
284 LPWSTR encname;
285
286 encname = encode_streamname(table, stname);
287
288 TRACE("%s -> %s\n",debugstr_w(stname),debugstr_w(encname));
289
290 r = IStorage_OpenStream(stg, encname, NULL,
291 STGM_READ | STGM_SHARE_EXCLUSIVE, 0, &stm);
292 msi_free( encname );
293 if( FAILED( r ) )
294 {
295 WARN("open stream failed r = %08x - empty table?\n", r);
296 return ret;
297 }
298
299 r = IStream_Stat(stm, &stat, STATFLAG_NONAME );
300 if( FAILED( r ) )
301 {
302 WARN("open stream failed r = %08x!\n", r);
303 goto end;
304 }
305
306 if( stat.cbSize.QuadPart >> 32 )
307 {
308 WARN("Too big!\n");
309 goto end;
310 }
311
312 sz = stat.cbSize.QuadPart;
313 data = msi_alloc( sz );
314 if( !data )
315 {
316 WARN("couldn't allocate memory r=%08x!\n", r);
317 ret = ERROR_NOT_ENOUGH_MEMORY;
318 goto end;
319 }
320
321 r = IStream_Read(stm, data, sz, &count );
322 if( FAILED( r ) || ( count != sz ) )
323 {
324 msi_free( data );
325 WARN("read stream failed r = %08x!\n", r);
326 goto end;
327 }
328
329 *pdata = data;
330 *psz = sz;
331 ret = ERROR_SUCCESS;
332
333 end:
334 IStream_Release( stm );
335
336 return ret;
337 }
338
339 UINT db_get_raw_stream( MSIDATABASE *db, LPCWSTR stname, IStream **stm )
340 {
341 LPWSTR encname;
342 HRESULT r;
343
344 encname = encode_streamname(FALSE, stname);
345
346 TRACE("%s -> %s\n",debugstr_w(stname),debugstr_w(encname));
347
348 r = IStorage_OpenStream(db->storage, encname, NULL,
349 STGM_READ | STGM_SHARE_EXCLUSIVE, 0, stm);
350 if( FAILED( r ) )
351 {
352 MSITRANSFORM *transform;
353
354 LIST_FOR_EACH_ENTRY( transform, &db->transforms, MSITRANSFORM, entry )
355 {
356 TRACE("looking for %s in transform storage\n", debugstr_w(stname) );
357 r = IStorage_OpenStream( transform->stg, encname, NULL,
358 STGM_READ | STGM_SHARE_EXCLUSIVE, 0, stm );
359 if (SUCCEEDED(r))
360 break;
361 }
362 }
363
364 msi_free( encname );
365
366 return SUCCEEDED(r) ? ERROR_SUCCESS : ERROR_FUNCTION_FAILED;
367 }
368
369 UINT read_raw_stream_data( MSIDATABASE *db, LPCWSTR stname,
370 USHORT **pdata, UINT *psz )
371 {
372 HRESULT r;
373 UINT ret = ERROR_FUNCTION_FAILED;
374 VOID *data;
375 ULONG sz, count;
376 IStream *stm = NULL;
377 STATSTG stat;
378
379 r = db_get_raw_stream( db, stname, &stm );
380 if( r != ERROR_SUCCESS)
381 return ret;
382 r = IStream_Stat(stm, &stat, STATFLAG_NONAME );
383 if( FAILED( r ) )
384 {
385 WARN("open stream failed r = %08x!\n", r);
386 goto end;
387 }
388
389 if( stat.cbSize.QuadPart >> 32 )
390 {
391 WARN("Too big!\n");
392 goto end;
393 }
394
395 sz = stat.cbSize.QuadPart;
396 data = msi_alloc( sz );
397 if( !data )
398 {
399 WARN("couldn't allocate memory r=%08x!\n", r);
400 ret = ERROR_NOT_ENOUGH_MEMORY;
401 goto end;
402 }
403
404 r = IStream_Read(stm, data, sz, &count );
405 if( FAILED( r ) || ( count != sz ) )
406 {
407 msi_free( data );
408 WARN("read stream failed r = %08x!\n", r);
409 goto end;
410 }
411
412 *pdata = data;
413 *psz = sz;
414 ret = ERROR_SUCCESS;
415
416 end:
417 IStream_Release( stm );
418
419 return ret;
420 }
421
422 UINT write_stream_data( IStorage *stg, LPCWSTR stname,
423 LPCVOID data, UINT sz, BOOL bTable )
424 {
425 HRESULT r;
426 UINT ret = ERROR_FUNCTION_FAILED;
427 ULONG count;
428 IStream *stm = NULL;
429 ULARGE_INTEGER size;
430 LARGE_INTEGER pos;
431 LPWSTR encname;
432
433 encname = encode_streamname(bTable, stname );
434 r = IStorage_OpenStream( stg, encname, NULL,
435 STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, &stm);
436 if( FAILED(r) )
437 {
438 r = IStorage_CreateStream( stg, encname,
439 STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, 0, &stm);
440 }
441 msi_free( encname );
442 if( FAILED( r ) )
443 {
444 WARN("open stream failed r = %08x\n", r);
445 return ret;
446 }
447
448 size.QuadPart = sz;
449 r = IStream_SetSize( stm, size );
450 if( FAILED( r ) )
451 {
452 WARN("Failed to SetSize\n");
453 goto end;
454 }
455
456 pos.QuadPart = 0;
457 r = IStream_Seek( stm, pos, STREAM_SEEK_SET, NULL );
458 if( FAILED( r ) )
459 {
460 WARN("Failed to Seek\n");
461 goto end;
462 }
463
464 if (sz)
465 {
466 r = IStream_Write(stm, data, sz, &count );
467 if( FAILED( r ) || ( count != sz ) )
468 {
469 WARN("Failed to Write\n");
470 goto end;
471 }
472 }
473
474 ret = ERROR_SUCCESS;
475
476 end:
477 IStream_Release( stm );
478
479 return ret;
480 }
481
482 static void free_table( MSITABLE *table )
483 {
484 UINT i;
485 for( i=0; i<table->row_count; i++ )
486 msi_free( table->data[i] );
487 msi_free( table->data );
488 for( i=0; i<table->nonpersistent_row_count; i++ )
489 msi_free( table->nonpersistent_data[i] );
490 msi_free( table->nonpersistent_data );
491 if( (table->colinfo != _Tables_cols) &&
492 (table->colinfo != _Columns_cols) )
493 {
494 msi_free_colinfo( table->colinfo, table->col_count );
495 msi_free( table->colinfo );
496 }
497 msi_free( table );
498 }
499
500 static UINT msi_table_get_row_size( const MSICOLUMNINFO *cols, UINT count )
501 {
502 const MSICOLUMNINFO *last_col = &cols[count-1];
503 if (!count)
504 return 0;
505 return last_col->offset + bytes_per_column( last_col );
506 }
507
508 /* add this table to the list of cached tables in the database */
509 static UINT read_table_from_storage( MSITABLE *t, IStorage *stg )
510 {
511 BYTE *rawdata = NULL;
512 UINT rawsize = 0, i, j, row_size = 0;
513
514 TRACE("%s\n",debugstr_w(t->name));
515
516 row_size = msi_table_get_row_size( t->colinfo, t->col_count );
517
518 /* if we can't read the table, just assume that it's empty */
519 read_stream_data( stg, t->name, TRUE, &rawdata, &rawsize );
520 if( !rawdata )
521 return ERROR_SUCCESS;
522
523 TRACE("Read %d bytes\n", rawsize );
524
525 if( rawsize % row_size )
526 {
527 WARN("Table size is invalid %d/%d\n", rawsize, row_size );
528 goto err;
529 }
530
531 t->row_count = rawsize / row_size;
532 t->data = msi_alloc_zero( t->row_count * sizeof (USHORT*) );
533 if( !t->data )
534 goto err;
535
536 /* transpose all the data */
537 TRACE("Transposing data from %d rows\n", t->row_count );
538 for( i=0; i<t->row_count; i++ )
539 {
540 t->data[i] = msi_alloc( row_size );
541 if( !t->data[i] )
542 goto err;
543
544 for( j=0; j<t->col_count; j++ )
545 {
546 UINT ofs = t->colinfo[j].offset;
547 UINT n = bytes_per_column( &t->colinfo[j] );
548 UINT k;
549
550 if ( n != 2 && n != 3 && n != 4 )
551 {
552 ERR("oops - unknown column width %d\n", n);
553 goto err;
554 }
555
556 for ( k = 0; k < n; k++ )
557 t->data[i][ofs + k] = rawdata[ofs*t->row_count + i * n + k];
558 }
559 }
560
561 msi_free( rawdata );
562 return ERROR_SUCCESS;
563 err:
564 msi_free( rawdata );
565 return ERROR_FUNCTION_FAILED;
566 }
567
568 void free_cached_tables( MSIDATABASE *db )
569 {
570 while( !list_empty( &db->tables ) )
571 {
572 MSITABLE *t = LIST_ENTRY( list_head( &db->tables ), MSITABLE, entry );
573
574 list_remove( &t->entry );
575 free_table( t );
576 }
577 }
578
579 static MSITABLE *find_cached_table( MSIDATABASE *db, LPCWSTR name )
580 {
581 MSITABLE *t;
582
583 LIST_FOR_EACH_ENTRY( t, &db->tables, MSITABLE, entry )
584 if( !lstrcmpW( name, t->name ) )
585 return t;
586
587 return NULL;
588 }
589
590 static UINT table_get_column_info( MSIDATABASE *db, LPCWSTR name, MSICOLUMNINFO **pcols, UINT *pcount )
591 {
592 UINT r, column_count = 0;
593 MSICOLUMNINFO *columns;
594
595 /* get the number of columns in this table */
596 column_count = 0;
597 r = get_tablecolumns( db, name, NULL, &column_count );
598 if( r != ERROR_SUCCESS )
599 return r;
600
601 /* if there's no columns, there's no table */
602 if( column_count == 0 )
603 return ERROR_INVALID_PARAMETER;
604
605 TRACE("Table %s found\n", debugstr_w(name) );
606
607 columns = msi_alloc( column_count*sizeof (MSICOLUMNINFO) );
608 if( !columns )
609 return ERROR_FUNCTION_FAILED;
610
611 r = get_tablecolumns( db, name, columns, &column_count );
612 if( r != ERROR_SUCCESS )
613 {
614 msi_free( columns );
615 return ERROR_FUNCTION_FAILED;
616 }
617
618 *pcols = columns;
619 *pcount = column_count;
620
621 return r;
622 }
623
624 UINT msi_create_table( MSIDATABASE *db, LPCWSTR name, column_info *col_info,
625 BOOL persistent, MSITABLE **table_ret)
626 {
627 UINT r, nField;
628 MSIVIEW *tv = NULL;
629 MSIRECORD *rec = NULL;
630 column_info *col;
631 MSITABLE *table;
632 UINT i;
633
634 /* only add tables that don't exist already */
635 if( TABLE_Exists(db, name ) )
636 {
637 WARN("table %s exists\n", debugstr_w(name));
638 return ERROR_BAD_QUERY_SYNTAX;
639 }
640
641 table = msi_alloc( sizeof (MSITABLE) + lstrlenW(name)*sizeof (WCHAR) );
642 if( !table )
643 return ERROR_FUNCTION_FAILED;
644
645 table->ref_count = 1;
646 table->row_count = 0;
647 table->data = NULL;
648 table->nonpersistent_row_count = 0;
649 table->nonpersistent_data = NULL;
650 table->colinfo = NULL;
651 table->col_count = 0;
652 table->persistent = persistent;
653 lstrcpyW( table->name, name );
654
655 for( col = col_info; col; col = col->next )
656 table->col_count++;
657
658 table->colinfo = msi_alloc( table->col_count * sizeof(MSICOLUMNINFO) );
659 if (!table->colinfo)
660 {
661 free_table( table );
662 return ERROR_FUNCTION_FAILED;
663 }
664
665 for( i = 0, col = col_info; col; i++, col = col->next )
666 {
667 table->colinfo[ i ].tablename = strdupW( col->table );
668 table->colinfo[ i ].number = i + 1;
669 table->colinfo[ i ].colname = strdupW( col->column );
670 table->colinfo[ i ].type = col->type;
671 table->colinfo[ i ].offset = 0;
672 table->colinfo[ i ].ref_count = 0;
673 table->colinfo[ i ].hash_table = NULL;
674 }
675 table_calc_column_offsets( table->colinfo, table->col_count);
676
677 r = TABLE_CreateView( db, szTables, &tv );
678 TRACE("CreateView returned %x\n", r);
679 if( r )
680 {
681 free_table( table );
682 return r;
683 }
684
685 r = tv->ops->execute( tv, 0 );
686 TRACE("tv execute returned %x\n", r);
687 if( r )
688 goto err;
689
690 rec = MSI_CreateRecord( 1 );
691 if( !rec )
692 goto err;
693
694 r = MSI_RecordSetStringW( rec, 1, name );
695 if( r )
696 goto err;
697
698 r = tv->ops->insert_row( tv, rec, !persistent );
699 TRACE("insert_row returned %x\n", r);
700 if( r )
701 goto err;
702
703 tv->ops->delete( tv );
704 tv = NULL;
705
706 msiobj_release( &rec->hdr );
707 rec = NULL;
708
709 if( persistent )
710 {
711 /* add each column to the _Columns table */
712 r = TABLE_CreateView( db, szColumns, &tv );
713 if( r )
714 return r;
715
716 r = tv->ops->execute( tv, 0 );
717 TRACE("tv execute returned %x\n", r);
718 if( r )
719 goto err;
720
721 rec = MSI_CreateRecord( 4 );
722 if( !rec )
723 goto err;
724
725 r = MSI_RecordSetStringW( rec, 1, name );
726 if( r )
727 goto err;
728
729 /*
730 * need to set the table, column number, col name and type
731 * for each column we enter in the table
732 */
733 nField = 1;
734 for( col = col_info; col; col = col->next )
735 {
736 r = MSI_RecordSetInteger( rec, 2, nField );
737 if( r )
738 goto err;
739
740 r = MSI_RecordSetStringW( rec, 3, col->column );
741 if( r )
742 goto err;
743
744 r = MSI_RecordSetInteger( rec, 4, col->type );
745 if( r )
746 goto err;
747
748 r = tv->ops->insert_row( tv, rec, FALSE );
749 if( r )
750 goto err;
751
752 nField++;
753 }
754 if( !col )
755 r = ERROR_SUCCESS;
756 }
757
758 err:
759 if (rec)
760 msiobj_release( &rec->hdr );
761 /* FIXME: remove values from the string table on error */
762 if( tv )
763 tv->ops->delete( tv );
764
765 if (r == ERROR_SUCCESS)
766 {
767 list_add_head( &db->tables, &table->entry );
768 *table_ret = table;
769 }
770 else
771 free_table( table );
772
773 return r;
774 }
775
776 static UINT get_table( MSIDATABASE *db, LPCWSTR name, MSITABLE **table_ret )
777 {
778 MSITABLE *table;
779 UINT r;
780
781 /* first, see if the table is cached */
782 table = find_cached_table( db, name );
783 if( table )
784 {
785 *table_ret = table;
786 return ERROR_SUCCESS;
787 }
788
789 /* nonexistent tables should be interpreted as empty tables */
790 table = msi_alloc( sizeof (MSITABLE) + lstrlenW(name)*sizeof (WCHAR) );
791 if( !table )
792 return ERROR_FUNCTION_FAILED;
793
794 table->row_count = 0;
795 table->data = NULL;
796 table->nonpersistent_row_count = 0;
797 table->nonpersistent_data = NULL;
798 table->colinfo = NULL;
799 table->col_count = 0;
800 table->persistent = TRUE;
801 lstrcpyW( table->name, name );
802
803 /* these two tables are special - we know the column types already */
804 if( !lstrcmpW( name, szColumns ) )
805 {
806 table->colinfo = _Columns_cols;
807 table->col_count = sizeof(_Columns_cols)/sizeof(_Columns_cols[0]);
808 }
809 else if( !lstrcmpW( name, szTables ) )
810 {
811 table->colinfo = _Tables_cols;
812 table->col_count = sizeof(_Tables_cols)/sizeof(_Tables_cols[0]);
813 }
814 else
815 {
816 r = table_get_column_info( db, name, &table->colinfo, &table->col_count);
817 if (r != ERROR_SUCCESS)
818 {
819 free_table ( table );
820 return r;
821 }
822 }
823
824 r = read_table_from_storage( table, db->storage );
825 if( r != ERROR_SUCCESS )
826 {
827 free_table( table );
828 return r;
829 }
830
831 list_add_head( &db->tables, &table->entry );
832 *table_ret = table;
833 return ERROR_SUCCESS;
834 }
835
836 static UINT save_table( MSIDATABASE *db, const MSITABLE *t )
837 {
838 BYTE *rawdata = NULL, *p;
839 UINT rawsize, r, i, j, row_size;
840
841 /* Nothing to do for non-persistent tables */
842 if( !t->persistent )
843 return ERROR_SUCCESS;
844
845 TRACE("Saving %s\n", debugstr_w( t->name ) );
846
847 row_size = msi_table_get_row_size( t->colinfo, t->col_count );
848
849 rawsize = t->row_count * row_size;
850 rawdata = msi_alloc_zero( rawsize );
851 if( !rawdata )
852 {
853 r = ERROR_NOT_ENOUGH_MEMORY;
854 goto err;
855 }
856
857 p = rawdata;
858 for( i=0; i<t->col_count; i++ )
859 {
860 for( j=0; j<t->row_count; j++ )
861 {
862 UINT offset = t->colinfo[i].offset;
863
864 *p++ = t->data[j][offset];
865 *p++ = t->data[j][offset + 1];
866 if( 4 == bytes_per_column( &t->colinfo[i] ) )
867 {
868 *p++ = t->data[j][offset + 2];
869 *p++ = t->data[j][offset + 3];
870 }
871 }
872 }
873
874 TRACE("writing %d bytes\n", rawsize);
875 r = write_stream_data( db->storage, t->name, rawdata, rawsize, TRUE );
876
877 err:
878 msi_free( rawdata );
879
880 return r;
881 }
882
883 static void table_calc_column_offsets( MSICOLUMNINFO *colinfo, DWORD count )
884 {
885 DWORD i;
886
887 for( i=0; colinfo && (i<count); i++ )
888 {
889 assert( (i+1) == colinfo[ i ].number );
890 if (i)
891 colinfo[i].offset = colinfo[ i - 1 ].offset
892 + bytes_per_column( &colinfo[ i - 1 ] );
893 else
894 colinfo[i].offset = 0;
895 TRACE("column %d is [%s] with type %08x ofs %d\n",
896 colinfo[i].number, debugstr_w(colinfo[i].colname),
897 colinfo[i].type, colinfo[i].offset);
898 }
899 }
900
901 static UINT get_defaulttablecolumns( LPCWSTR name, MSICOLUMNINFO *colinfo, UINT *sz)
902 {
903 const MSICOLUMNINFO *p;
904 DWORD i, n;
905
906 TRACE("%s\n", debugstr_w(name));
907
908 if (!lstrcmpW( name, szTables ))
909 {
910 p = _Tables_cols;
911 n = 1;
912 }
913 else if (!lstrcmpW( name, szColumns ))
914 {
915 p = _Columns_cols;
916 n = 4;
917 }
918 else
919 return ERROR_FUNCTION_FAILED;
920
921 /* duplicate the string data so we can free it in msi_free_colinfo */
922 for (i=0; i<n; i++)
923 {
924 if (colinfo && (i < *sz) )
925 {
926 colinfo[i] = p[i];
927 colinfo[i].tablename = strdupW( p[i].tablename );
928 colinfo[i].colname = strdupW( p[i].colname );
929 }
930 if( colinfo && (i >= *sz) )
931 break;
932 }
933 table_calc_column_offsets( colinfo, n );
934 *sz = n;
935 return ERROR_SUCCESS;
936 }
937
938 static void msi_free_colinfo( MSICOLUMNINFO *colinfo, UINT count )
939 {
940 UINT i;
941
942 for( i=0; i<count; i++ )
943 {
944 msi_free( colinfo[i].tablename );
945 msi_free( colinfo[i].colname );
946 msi_free( colinfo[i].hash_table );
947 }
948 }
949
950 static LPWSTR msi_makestring( const MSIDATABASE *db, UINT stringid)
951 {
952 return strdupW(msi_string_lookup_id( db->strings, stringid ));
953 }
954
955 static UINT read_table_int(BYTE *const *data, UINT row, UINT col, UINT bytes)
956 {
957 UINT ret = 0, i;
958
959 for (i = 0; i < bytes; i++)
960 ret += (data[row][col + i] << i * 8);
961
962 return ret;
963 }
964
965 static UINT get_tablecolumns( MSIDATABASE *db,
966 LPCWSTR szTableName, MSICOLUMNINFO *colinfo, UINT *sz)
967 {
968 UINT r, i, n=0, table_id, count, maxcount = *sz;
969 MSITABLE *table = NULL;
970
971 TRACE("%s\n", debugstr_w(szTableName));
972
973 /* first check if there is a default table with that name */
974 r = get_defaulttablecolumns( szTableName, colinfo, sz );
975 if( ( r == ERROR_SUCCESS ) && *sz )
976 return r;
977
978 r = get_table( db, szColumns, &table );
979 if( r != ERROR_SUCCESS )
980 {
981 ERR("couldn't load _Columns table\n");
982 return ERROR_FUNCTION_FAILED;
983 }
984
985 /* convert table and column names to IDs from the string table */
986 r = msi_string2idW( db->strings, szTableName, &table_id );
987 if( r != ERROR_SUCCESS )
988 {
989 WARN("Couldn't find id for %s\n", debugstr_w(szTableName));
990 return r;
991 }
992
993 TRACE("Table id is %d, row count is %d\n", table_id, table->row_count);
994
995 /* Note: _Columns table doesn't have non-persistent data */
996
997 /* if maxcount is non-zero, assume it's exactly right for this table */
998 memset( colinfo, 0, maxcount*sizeof(*colinfo) );
999 count = table->row_count;
1000 for( i=0; i<count; i++ )
1001 {
1002 if( read_table_int(table->data, i, 0, db->bytes_per_strref) != table_id )
1003 continue;
1004 if( colinfo )
1005 {
1006 UINT id = read_table_int(table->data, i, _Columns_cols[2].offset, db->bytes_per_strref);
1007 UINT col = read_table_int(table->data, i, _Columns_cols[1].offset, sizeof(USHORT)) - (1<<15);
1008
1009 /* check the column number is in range */
1010 if (col<1 || col>maxcount)
1011 {
1012 ERR("column %d out of range\n", col);
1013 continue;
1014 }
1015
1016 /* check if this column was already set */
1017 if (colinfo[ col - 1 ].number)
1018 {
1019 ERR("duplicate column %d\n", col);
1020 continue;
1021 }
1022
1023 colinfo[ col - 1 ].tablename = msi_makestring( db, table_id );
1024 colinfo[ col - 1 ].number = col;
1025 colinfo[ col - 1 ].colname = msi_makestring( db, id );
1026 colinfo[ col - 1 ].type = read_table_int(table->data, i, _Columns_cols[3].offset, sizeof(USHORT)) - (1<<15);
1027 colinfo[ col - 1 ].offset = 0;
1028 colinfo[ col - 1 ].ref_count = 0;
1029 colinfo[ col - 1 ].hash_table = NULL;
1030 }
1031 n++;
1032 }
1033
1034 TRACE("%s has %d columns\n", debugstr_w(szTableName), n);
1035
1036 if (colinfo && n != maxcount)
1037 {
1038 ERR("missing column in table %s\n", debugstr_w(szTableName));
1039 msi_free_colinfo(colinfo, maxcount );
1040 return ERROR_FUNCTION_FAILED;
1041 }
1042
1043 table_calc_column_offsets( colinfo, n );
1044 *sz = n;
1045
1046 return ERROR_SUCCESS;
1047 }
1048
1049 static void msi_update_table_columns( MSIDATABASE *db, LPCWSTR name )
1050 {
1051 MSITABLE *table;
1052 UINT size, offset, old_count;
1053 UINT n;
1054
1055 table = find_cached_table( db, name );
1056 old_count = table->col_count;
1057 msi_free( table->colinfo );
1058 table_get_column_info( db, name, &table->colinfo, &table->col_count );
1059
1060 size = msi_table_get_row_size( table->colinfo, table->col_count );
1061 offset = table->colinfo[table->col_count - 1].offset;
1062
1063 for ( n = 0; n < table->row_count; n++ )
1064 {
1065 table->data[n] = msi_realloc( table->data[n], size );
1066 if (old_count < table->col_count)
1067 memset( &table->data[n][offset], 0, size - offset );
1068 }
1069 }
1070
1071 /* try to find the table name in the _Tables table */
1072 BOOL TABLE_Exists( MSIDATABASE *db, LPCWSTR name )
1073 {
1074 UINT r, table_id = 0, i, count;
1075 MSITABLE *table = NULL;
1076
1077 if( !lstrcmpW( name, szTables ) )
1078 return TRUE;
1079 if( !lstrcmpW( name, szColumns ) )
1080 return TRUE;
1081
1082 r = msi_string2idW( db->strings, name, &table_id );
1083 if( r != ERROR_SUCCESS )
1084 {
1085 TRACE("Couldn't find id for %s\n", debugstr_w(name));
1086 return FALSE;
1087 }
1088
1089 r = get_table( db, szTables, &table );
1090 if( r != ERROR_SUCCESS )
1091 {
1092 ERR("table %s not available\n", debugstr_w(szTables));
1093 return FALSE;
1094 }
1095
1096 count = table->row_count;
1097 for( i=0; i<count; i++ )
1098 if( table->data[ i ][ 0 ] == table_id )
1099 break;
1100
1101 if (i!=count)
1102 return TRUE;
1103
1104 count = table->nonpersistent_row_count;
1105 for( i=0; i<count; i++ )
1106 if( table->nonpersistent_data[ i ][ 0 ] == table_id )
1107 break;
1108
1109 if (i!=count)
1110 return TRUE;
1111
1112 TRACE("Searched %d tables, but %d was not found\n", count, table_id );
1113
1114 return FALSE;
1115 }
1116
1117 /* below is the query interface to a table */
1118
1119 typedef struct tagMSITABLEVIEW
1120 {
1121 MSIVIEW view;
1122 MSIDATABASE *db;
1123 MSITABLE *table;
1124 MSICOLUMNINFO *columns;
1125 MSIORDERINFO *order;
1126 UINT num_cols;
1127 UINT row_size;
1128 WCHAR name[1];
1129 } MSITABLEVIEW;
1130
1131 static UINT TABLE_fetch_int( struct tagMSIVIEW *view, UINT row, UINT col, UINT *val )
1132 {
1133 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1134 UINT offset, n;
1135 BYTE **data;
1136
1137 if( !tv->table )
1138 return ERROR_INVALID_PARAMETER;
1139
1140 if( (col==0) || (col>tv->num_cols) )
1141 return ERROR_INVALID_PARAMETER;
1142
1143 /* how many rows are there ? */
1144 if( row >= tv->table->row_count + tv->table->nonpersistent_row_count )
1145 return ERROR_NO_MORE_ITEMS;
1146
1147 if( tv->columns[col-1].offset >= tv->row_size )
1148 {
1149 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1150 ERR("%p %p\n", tv, tv->columns );
1151 return ERROR_FUNCTION_FAILED;
1152 }
1153
1154 if (tv->order)
1155 row = tv->order->reorder[row];
1156
1157 if (row >= tv->table->row_count)
1158 {
1159 row -= tv->table->row_count;
1160 data = tv->table->nonpersistent_data;
1161 }
1162 else
1163 data = tv->table->data;
1164
1165 n = bytes_per_column( &tv->columns[col-1] );
1166 if (n != 2 && n != 3 && n != 4)
1167 {
1168 ERR("oops! what is %d bytes per column?\n", n );
1169 return ERROR_FUNCTION_FAILED;
1170 }
1171
1172 offset = tv->columns[col-1].offset;
1173 *val = read_table_int(data, row, offset, n);
1174
1175 /* TRACE("Data [%d][%d] = %d\n", row, col, *val ); */
1176
1177 return ERROR_SUCCESS;
1178 }
1179
1180 /*
1181 * We need a special case for streams, as we need to reference column with
1182 * the name of the stream in the same table, and the table name
1183 * which may not be available at higher levels of the query
1184 */
1185 static UINT TABLE_fetch_stream( struct tagMSIVIEW *view, UINT row, UINT col, IStream **stm )
1186 {
1187 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1188 UINT ival = 0, refcol = 0, r;
1189 LPCWSTR sval;
1190 LPWSTR full_name;
1191 DWORD len;
1192 static const WCHAR szDot[] = { '.', 0 };
1193 WCHAR number[0x20];
1194
1195 if( !view->ops->fetch_int )
1196 return ERROR_INVALID_PARAMETER;
1197
1198 /*
1199 * The column marked with the type stream data seems to have a single number
1200 * which references the column containing the name of the stream data
1201 *
1202 * Fetch the column to reference first.
1203 */
1204 r = view->ops->fetch_int( view, row, col, &ival );
1205 if( r != ERROR_SUCCESS )
1206 return r;
1207
1208 /* check the column value is in range */
1209 if (ival > tv->num_cols || ival == col)
1210 {
1211 ERR("bad column ref (%u) for stream\n", ival);
1212 return ERROR_FUNCTION_FAILED;
1213 }
1214
1215 if ( tv->columns[ival - 1].type & MSITYPE_STRING )
1216 {
1217 /* now get the column with the name of the stream */
1218 r = view->ops->fetch_int( view, row, ival, &refcol );
1219 if ( r != ERROR_SUCCESS )
1220 return r;
1221
1222 /* lookup the string value from the string table */
1223 sval = msi_string_lookup_id( tv->db->strings, refcol );
1224 if ( !sval )
1225 return ERROR_INVALID_PARAMETER;
1226 }
1227 else
1228 {
1229 static const WCHAR fmt[] = { '%','d',0 };
1230 sprintfW( number, fmt, ival );
1231 sval = number;
1232 }
1233
1234 len = lstrlenW( tv->name ) + 2 + lstrlenW( sval );
1235 full_name = msi_alloc( len*sizeof(WCHAR) );
1236 lstrcpyW( full_name, tv->name );
1237 lstrcatW( full_name, szDot );
1238 lstrcatW( full_name, sval );
1239
1240 r = db_get_raw_stream( tv->db, full_name, stm );
1241 if( r )
1242 ERR("fetching stream %s, error = %d\n",debugstr_w(full_name), r);
1243 msi_free( full_name );
1244
1245 return r;
1246 }
1247
1248 static UINT TABLE_set_int( MSITABLEVIEW *tv, UINT row, UINT col, UINT val )
1249 {
1250 UINT offset, n, i;
1251 BYTE **data;
1252
1253 if( !tv->table )
1254 return ERROR_INVALID_PARAMETER;
1255
1256 if( (col==0) || (col>tv->num_cols) )
1257 return ERROR_INVALID_PARAMETER;
1258
1259 if( row >= tv->table->row_count + tv->table->nonpersistent_row_count )
1260 return ERROR_INVALID_PARAMETER;
1261
1262 if( tv->columns[col-1].offset >= tv->row_size )
1263 {
1264 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1265 ERR("%p %p\n", tv, tv->columns );
1266 return ERROR_FUNCTION_FAILED;
1267 }
1268
1269 msi_free( tv->columns[col-1].hash_table );
1270 tv->columns[col-1].hash_table = NULL;
1271
1272 if (row >= tv->table->row_count)
1273 {
1274 row -= tv->table->row_count;
1275 data = tv->table->nonpersistent_data;
1276 }
1277 else
1278 data = tv->table->data;
1279
1280 n = bytes_per_column( &tv->columns[col-1] );
1281 if ( n != 2 && n != 3 && n != 4 )
1282 {
1283 ERR("oops! what is %d bytes per column?\n", n );
1284 return ERROR_FUNCTION_FAILED;
1285 }
1286
1287 offset = tv->columns[col-1].offset;
1288 for ( i = 0; i < n; i++ )
1289 data[row][offset + i] = (val >> i * 8) & 0xff;
1290
1291 return ERROR_SUCCESS;
1292 }
1293
1294 static UINT TABLE_get_row( struct tagMSIVIEW *view, UINT row, MSIRECORD **rec )
1295 {
1296 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1297
1298 if (!tv->table)
1299 return ERROR_INVALID_PARAMETER;
1300
1301 if (tv->order)
1302 row = tv->order->reorder[row];
1303
1304 return msi_view_get_row(tv->db, view, row, rec);
1305 }
1306
1307 static UINT TABLE_set_row( struct tagMSIVIEW *view, UINT row, MSIRECORD *rec, UINT mask )
1308 {
1309 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1310 UINT i, val, r = ERROR_SUCCESS;
1311
1312 if ( !tv->table )
1313 return ERROR_INVALID_PARAMETER;
1314
1315 /* test if any of the mask bits are invalid */
1316 if ( mask >= (1<<tv->num_cols) )
1317 return ERROR_INVALID_PARAMETER;
1318
1319 for ( i = 0; i < tv->num_cols; i++ )
1320 {
1321 BOOL persistent;
1322
1323 /* only update the fields specified in the mask */
1324 if ( !(mask&(1<<i)) )
1325 continue;
1326
1327 /* if row >= tv->table->row_count then it is a non-persistent row */
1328 persistent = tv->table->persistent && (row < tv->table->row_count);
1329 /* FIXME: should we allow updating keys? */
1330
1331 val = 0;
1332 if ( !MSI_RecordIsNull( rec, i + 1 ) )
1333 {
1334 if ( MSITYPE_IS_BINARY(tv->columns[ i ].type) )
1335 {
1336 val = 1; /* refers to the first key column */
1337 }
1338 else if ( tv->columns[i].type & MSITYPE_STRING )
1339 {
1340 LPCWSTR sval = MSI_RecordGetString( rec, i + 1 );
1341 UINT ival, x;
1342
1343 r = msi_string2idW(tv->db->strings, sval, &ival);
1344 if (r == ERROR_SUCCESS)
1345 {
1346 TABLE_fetch_int(&tv->view, row, i + 1, &x);
1347 if (ival == x)
1348 continue;
1349 }
1350
1351 val = msi_addstringW( tv->db->strings, 0, sval, -1, 1,
1352 persistent ? StringPersistent : StringNonPersistent );
1353 }
1354 else if ( 2 == bytes_per_column( &tv->columns[ i ] ) )
1355 {
1356 val = 0x8000 + MSI_RecordGetInteger( rec, i + 1 );
1357 if ( val & 0xffff0000 )
1358 {
1359 ERR("field %u value %d out of range\n", i+1, val - 0x8000 );
1360 return ERROR_FUNCTION_FAILED;
1361 }
1362 }
1363 else
1364 {
1365 INT ival = MSI_RecordGetInteger( rec, i + 1 );
1366 val = ival ^ 0x80000000;
1367 }
1368 }
1369
1370 r = TABLE_set_int( tv, row, i+1, val );
1371 if ( r != ERROR_SUCCESS )
1372 break;
1373 }
1374 return r;
1375 }
1376
1377 static UINT table_create_new_row( struct tagMSIVIEW *view, UINT *num, BOOL temporary )
1378 {
1379 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1380 BYTE **p, *row;
1381 UINT sz;
1382 BYTE ***data_ptr;
1383 UINT *row_count;
1384
1385 TRACE("%p %s\n", view, temporary ? "TRUE" : "FALSE");
1386
1387 if( !tv->table )
1388 return ERROR_INVALID_PARAMETER;
1389
1390 row = msi_alloc_zero( tv->row_size );
1391 if( !row )
1392 return ERROR_NOT_ENOUGH_MEMORY;
1393
1394 if( temporary )
1395 {
1396 row_count = &tv->table->nonpersistent_row_count;
1397 data_ptr = &tv->table->nonpersistent_data;
1398 *num = tv->table->row_count + tv->table->nonpersistent_row_count;
1399 }
1400 else
1401 {
1402 row_count = &tv->table->row_count;
1403 data_ptr = &tv->table->data;
1404 *num = tv->table->row_count;
1405 }
1406
1407 sz = (*row_count + 1) * sizeof (BYTE*);
1408 if( *data_ptr )
1409 p = msi_realloc( *data_ptr, sz );
1410 else
1411 p = msi_alloc( sz );
1412 if( !p )
1413 {
1414 msi_free( row );
1415 return ERROR_NOT_ENOUGH_MEMORY;
1416 }
1417
1418 *data_ptr = p;
1419 (*data_ptr)[*row_count] = row;
1420 (*row_count)++;
1421
1422 return ERROR_SUCCESS;
1423 }
1424
1425 static UINT TABLE_execute( struct tagMSIVIEW *view, MSIRECORD *record )
1426 {
1427 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1428
1429 TRACE("%p %p\n", tv, record);
1430
1431 TRACE("There are %d columns\n", tv->num_cols );
1432
1433 return ERROR_SUCCESS;
1434 }
1435
1436 static UINT TABLE_close( struct tagMSIVIEW *view )
1437 {
1438 TRACE("%p\n", view );
1439
1440 return ERROR_SUCCESS;
1441 }
1442
1443 static UINT TABLE_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols)
1444 {
1445 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1446
1447 TRACE("%p %p %p\n", view, rows, cols );
1448
1449 if( cols )
1450 *cols = tv->num_cols;
1451 if( rows )
1452 {
1453 if( !tv->table )
1454 return ERROR_INVALID_PARAMETER;
1455 *rows = tv->table->row_count + tv->table->nonpersistent_row_count;
1456 }
1457
1458 return ERROR_SUCCESS;
1459 }
1460
1461 static UINT TABLE_get_column_info( struct tagMSIVIEW *view,
1462 UINT n, LPWSTR *name, UINT *type )
1463 {
1464 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1465
1466 TRACE("%p %d %p %p\n", tv, n, name, type );
1467
1468 if( ( n == 0 ) || ( n > tv->num_cols ) )
1469 return ERROR_INVALID_PARAMETER;
1470
1471 if( name )
1472 {
1473 *name = strdupW( tv->columns[n-1].colname );
1474 if( !*name )
1475 return ERROR_FUNCTION_FAILED;
1476 }
1477 if( type )
1478 *type = tv->columns[n-1].type;
1479
1480 return ERROR_SUCCESS;
1481 }
1482
1483 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row );
1484
1485 static UINT table_validate_new( MSITABLEVIEW *tv, MSIRECORD *rec )
1486 {
1487 UINT r, row, i;
1488
1489 /* check there's no null values where they're not allowed */
1490 for( i = 0; i < tv->num_cols; i++ )
1491 {
1492 if ( tv->columns[i].type & MSITYPE_NULLABLE )
1493 continue;
1494
1495 if ( MSITYPE_IS_BINARY(tv->columns[i].type) )
1496 TRACE("skipping binary column\n");
1497 else if ( tv->columns[i].type & MSITYPE_STRING )
1498 {
1499 LPCWSTR str;
1500
1501 str = MSI_RecordGetString( rec, i+1 );
1502 if (str == NULL || str[0] == 0)
1503 return ERROR_INVALID_DATA;
1504 }
1505 else
1506 {
1507 UINT n;
1508
1509 n = MSI_RecordGetInteger( rec, i+1 );
1510 if (n == MSI_NULL_INTEGER)
1511 return ERROR_INVALID_DATA;
1512 }
1513 }
1514
1515 /* check there's no duplicate keys */
1516 r = msi_table_find_row( tv, rec, &row );
1517 if (r == ERROR_SUCCESS)
1518 return ERROR_FUNCTION_FAILED;
1519
1520 return ERROR_SUCCESS;
1521 }
1522
1523 static UINT TABLE_insert_row( struct tagMSIVIEW *view, MSIRECORD *rec, BOOL temporary )
1524 {
1525 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1526 UINT r, row = -1;
1527
1528 TRACE("%p %p %s\n", tv, rec, temporary ? "TRUE" : "FALSE" );
1529
1530 /* check that the key is unique - can we find a matching row? */
1531 r = table_validate_new( tv, rec );
1532 if( r != ERROR_SUCCESS )
1533 return ERROR_FUNCTION_FAILED;
1534
1535 r = table_create_new_row( view, &row, temporary );
1536 TRACE("insert_row returned %08x\n", r);
1537 if( r != ERROR_SUCCESS )
1538 return r;
1539
1540 return TABLE_set_row( view, row, rec, (1<<tv->num_cols) - 1 );
1541 }
1542
1543 static UINT TABLE_delete_row( struct tagMSIVIEW *view, UINT row )
1544 {
1545 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1546 UINT r, num_rows, num_cols, i;
1547 BYTE **data;
1548
1549 TRACE("%p %d\n", tv, row);
1550
1551 if ( !tv->table )
1552 return ERROR_INVALID_PARAMETER;
1553
1554 r = TABLE_get_dimensions( view, &num_rows, &num_cols );
1555 if ( r != ERROR_SUCCESS )
1556 return r;
1557
1558 if ( row >= num_rows )
1559 return ERROR_FUNCTION_FAILED;
1560
1561 if ( row < tv->table->row_count )
1562 {
1563 num_rows = tv->table->row_count;
1564 tv->table->row_count--;
1565 data = tv->table->data;
1566 }
1567 else
1568 {
1569 num_rows = tv->table->nonpersistent_row_count;
1570 row -= tv->table->row_count;
1571 tv->table->nonpersistent_row_count--;
1572 data = tv->table->nonpersistent_data;
1573 }
1574
1575 /* reset the hash tables */
1576 for (i = 0; i < tv->num_cols; i++)
1577 {
1578 msi_free( tv->columns[i].hash_table );
1579 tv->columns[i].hash_table = NULL;
1580 }
1581
1582 if ( row == num_rows - 1 )
1583 return ERROR_SUCCESS;
1584
1585 for (i = row + 1; i < num_rows; i++)
1586 memcpy(data[i - 1], data[i], tv->row_size);
1587
1588 return ERROR_SUCCESS;
1589 }
1590
1591 static UINT msi_table_update(struct tagMSIVIEW *view, MSIRECORD *rec, UINT row)
1592 {
1593 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1594 UINT r, new_row;
1595
1596 /* FIXME: MsiViewFetch should set rec index 0 to some ID that
1597 * sets the fetched record apart from other records
1598 */
1599
1600 if (!tv->table)
1601 return ERROR_INVALID_PARAMETER;
1602
1603 r = msi_table_find_row(tv, rec, &new_row);
1604 if (r != ERROR_SUCCESS)
1605 {
1606 ERR("can't find row to modify\n");
1607 return ERROR_FUNCTION_FAILED;
1608 }
1609
1610 /* the row cannot be changed */
1611 if (row != new_row + 1)
1612 return ERROR_FUNCTION_FAILED;
1613
1614 return TABLE_set_row(view, new_row, rec, (1 << tv->num_cols) - 1);
1615 }
1616
1617 static UINT modify_delete_row( struct tagMSIVIEW *view, MSIRECORD *rec )
1618 {
1619 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1620 UINT row, r;
1621
1622 r = msi_table_find_row(tv, rec, &row);
1623 if (r != ERROR_SUCCESS)
1624 return r;
1625
1626 return TABLE_delete_row(view, row);
1627 }
1628
1629 static UINT msi_refresh_record( struct tagMSIVIEW *view, MSIRECORD *rec, UINT row )
1630 {
1631 MSIRECORD *curr;
1632 UINT r, i, count;
1633
1634 r = TABLE_get_row(view, row - 1, &curr);
1635 if (r != ERROR_SUCCESS)
1636 return r;
1637
1638 count = MSI_RecordGetFieldCount(rec);
1639 for (i = 0; i < count; i++)
1640 MSI_RecordCopyField(curr, i + 1, rec, i + 1);
1641
1642 msiobj_release(&curr->hdr);
1643 return ERROR_SUCCESS;
1644 }
1645
1646 static UINT TABLE_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode,
1647 MSIRECORD *rec, UINT row)
1648 {
1649 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1650 UINT r;
1651
1652 TRACE("%p %d %p\n", view, eModifyMode, rec );
1653
1654 switch (eModifyMode)
1655 {
1656 case MSIMODIFY_DELETE:
1657 r = modify_delete_row( view, rec );
1658 break;
1659 case MSIMODIFY_VALIDATE_NEW:
1660 r = table_validate_new( tv, rec );
1661 break;
1662
1663 case MSIMODIFY_INSERT:
1664 r = table_validate_new( tv, rec );
1665 if (r != ERROR_SUCCESS)
1666 break;
1667 r = TABLE_insert_row( view, rec, FALSE );
1668 break;
1669
1670 case MSIMODIFY_INSERT_TEMPORARY:
1671 r = table_validate_new( tv, rec );
1672 if (r != ERROR_SUCCESS)
1673 break;
1674 r = TABLE_insert_row( view, rec, TRUE );
1675 break;
1676
1677 case MSIMODIFY_REFRESH:
1678 r = msi_refresh_record( view, rec, row );
1679 break;
1680
1681 case MSIMODIFY_UPDATE:
1682 r = msi_table_update( view, rec, row );
1683 break;
1684
1685 case MSIMODIFY_ASSIGN:
1686 case MSIMODIFY_REPLACE:
1687 case MSIMODIFY_MERGE:
1688 case MSIMODIFY_VALIDATE:
1689 case MSIMODIFY_VALIDATE_FIELD:
1690 case MSIMODIFY_VALIDATE_DELETE:
1691 FIXME("%p %d %p - mode not implemented\n", view, eModifyMode, rec );
1692 r = ERROR_CALL_NOT_IMPLEMENTED;
1693 break;
1694
1695 default:
1696 r = ERROR_INVALID_DATA;
1697 }
1698
1699 return r;
1700 }
1701
1702 static UINT TABLE_delete( struct tagMSIVIEW *view )
1703 {
1704 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1705
1706 TRACE("%p\n", view );
1707
1708 tv->table = NULL;
1709 tv->columns = NULL;
1710
1711 if (tv->order)
1712 {
1713 msi_free( tv->order->reorder );
1714 msi_free( tv->order );
1715 tv->order = NULL;
1716 }
1717
1718 msi_free( tv );
1719
1720 return ERROR_SUCCESS;
1721 }
1722
1723 static UINT TABLE_find_matching_rows( struct tagMSIVIEW *view, UINT col,
1724 UINT val, UINT *row, MSIITERHANDLE *handle )
1725 {
1726 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1727 const MSICOLUMNHASHENTRY *entry;
1728
1729 TRACE("%p, %d, %u, %p\n", view, col, val, *handle);
1730
1731 if( !tv->table )
1732 return ERROR_INVALID_PARAMETER;
1733
1734 if( (col==0) || (col > tv->num_cols) )
1735 return ERROR_INVALID_PARAMETER;
1736
1737 if( !tv->columns[col-1].hash_table )
1738 {
1739 UINT i;
1740 UINT num_rows = tv->table->row_count + tv->table->nonpersistent_row_count;
1741 MSICOLUMNHASHENTRY **hash_table;
1742 MSICOLUMNHASHENTRY *new_entry;
1743
1744 if( tv->columns[col-1].offset >= tv->row_size )
1745 {
1746 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1747 ERR("%p %p\n", tv, tv->columns );
1748 return ERROR_FUNCTION_FAILED;
1749 }
1750
1751 /* allocate contiguous memory for the table and its entries so we
1752 * don't have to do an expensive cleanup */
1753 hash_table = msi_alloc(MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*) +
1754 num_rows * sizeof(MSICOLUMNHASHENTRY));
1755 if (!hash_table)
1756 return ERROR_OUTOFMEMORY;
1757
1758 memset(hash_table, 0, MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*));
1759 tv->columns[col-1].hash_table = hash_table;
1760
1761 new_entry = (MSICOLUMNHASHENTRY *)(hash_table + MSITABLE_HASH_TABLE_SIZE);
1762
1763 for (i = 0; i < num_rows; i++, new_entry++)
1764 {
1765 UINT row_value;
1766
1767 if (view->ops->fetch_int( view, i, col, &row_value ) != ERROR_SUCCESS)
1768 continue;
1769
1770 new_entry->next = NULL;
1771 new_entry->value = row_value;
1772 new_entry->row = i;
1773 if (hash_table[row_value % MSITABLE_HASH_TABLE_SIZE])
1774 {
1775 MSICOLUMNHASHENTRY *prev_entry = hash_table[row_value % MSITABLE_HASH_TABLE_SIZE];
1776 while (prev_entry->next)
1777 prev_entry = prev_entry->next;
1778 prev_entry->next = new_entry;
1779 }
1780 else
1781 hash_table[row_value % MSITABLE_HASH_TABLE_SIZE] = new_entry;
1782 }
1783 }
1784
1785 if( !*handle )
1786 entry = tv->columns[col-1].hash_table[val % MSITABLE_HASH_TABLE_SIZE];
1787 else
1788 entry = (*handle)->next;
1789
1790 while (entry && entry->value != val)
1791 entry = entry->next;
1792
1793 *handle = entry;
1794 if (!entry)
1795 return ERROR_NO_MORE_ITEMS;
1796
1797 *row = entry->row;
1798
1799 return ERROR_SUCCESS;
1800 }
1801
1802 static UINT TABLE_add_ref(struct tagMSIVIEW *view)
1803 {
1804 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1805 UINT i;
1806
1807 TRACE("%p %d\n", view, tv->table->ref_count);
1808
1809 for (i = 0; i < tv->table->col_count; i++)
1810 {
1811 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
1812 InterlockedIncrement(&tv->table->colinfo[i].ref_count);
1813 }
1814
1815 return InterlockedIncrement(&tv->table->ref_count);
1816 }
1817
1818 static UINT TABLE_remove_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number)
1819 {
1820 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1821 MSIRECORD *rec = NULL;
1822 MSIVIEW *columns = NULL;
1823 UINT row, r;
1824
1825 rec = MSI_CreateRecord(2);
1826 if (!rec)
1827 return ERROR_OUTOFMEMORY;
1828
1829 MSI_RecordSetStringW(rec, 1, table);
1830 MSI_RecordSetInteger(rec, 2, number);
1831
1832 r = TABLE_CreateView(tv->db, szColumns, &columns);
1833 if (r != ERROR_SUCCESS)
1834 return r;
1835
1836 r = msi_table_find_row((MSITABLEVIEW *)columns, rec, &row);
1837 if (r != ERROR_SUCCESS)
1838 goto done;
1839
1840 r = TABLE_delete_row(columns, row);
1841 if (r != ERROR_SUCCESS)
1842 goto done;
1843
1844 msi_update_table_columns(tv->db, table);
1845
1846 done:
1847 msiobj_release(&rec->hdr);
1848 if (columns) columns->ops->delete(columns);
1849 return r;
1850 }
1851
1852 static UINT TABLE_release(struct tagMSIVIEW *view)
1853 {
1854 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1855 INT ref = tv->table->ref_count;
1856 UINT i, r;
1857
1858 TRACE("%p %d\n", view, ref);
1859
1860 for (i = 0; i < tv->table->col_count; i++)
1861 {
1862 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
1863 {
1864 ref = InterlockedDecrement(&tv->table->colinfo[i].ref_count);
1865 if (ref == 0)
1866 {
1867 r = TABLE_remove_column(view, tv->table->colinfo[i].tablename,
1868 tv->table->colinfo[i].number);
1869 if (r != ERROR_SUCCESS)
1870 break;
1871 }
1872 }
1873 }
1874
1875 ref = InterlockedDecrement(&tv->table->ref_count);
1876 if (ref == 0)
1877 {
1878 if (!tv->table->row_count)
1879 {
1880 list_remove(&tv->table->entry);
1881 free_table(tv->table);
1882 TABLE_delete(view);
1883 }
1884 }
1885
1886 return ref;
1887 }
1888
1889 static UINT TABLE_add_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number,
1890 LPCWSTR column, UINT type, BOOL hold)
1891 {
1892 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1893 MSITABLE *msitable;
1894 MSIRECORD *rec;
1895 UINT r, i;
1896
1897 rec = MSI_CreateRecord(4);
1898 if (!rec)
1899 return ERROR_OUTOFMEMORY;
1900
1901 MSI_RecordSetStringW(rec, 1, table);
1902 MSI_RecordSetInteger(rec, 2, number);
1903 MSI_RecordSetStringW(rec, 3, column);
1904 MSI_RecordSetInteger(rec, 4, type);
1905
1906 r = TABLE_insert_row(&tv->view, rec, FALSE);
1907 if (r != ERROR_SUCCESS)
1908 goto done;
1909
1910 msi_update_table_columns(tv->db, table);
1911
1912 if (!hold)
1913 goto done;
1914
1915 msitable = find_cached_table(tv->db, table);
1916 for (i = 0; i < msitable->col_count; i++)
1917 {
1918 if (!lstrcmpW(msitable->colinfo[i].colname, column))
1919 {
1920 InterlockedIncrement(&msitable->colinfo[i].ref_count);
1921 break;
1922 }
1923 }
1924
1925 done:
1926 msiobj_release(&rec->hdr);
1927 return r;
1928 }
1929
1930 static UINT order_add_column(struct tagMSIVIEW *view, MSIORDERINFO *order, LPCWSTR name)
1931 {
1932 UINT n, r, count;
1933
1934 r = TABLE_get_dimensions(view, NULL, &count);
1935 if (r != ERROR_SUCCESS)
1936 return r;
1937
1938 if (order->num_cols >= count)
1939 return ERROR_FUNCTION_FAILED;
1940
1941 r = VIEW_find_column(view, name, &n);
1942 if (r != ERROR_SUCCESS)
1943 return r;
1944
1945 order->cols[order->num_cols] = n;
1946 TRACE("Ordering by column %s (%d)\n", debugstr_w(name), n);
1947
1948 order->num_cols++;
1949
1950 return ERROR_SUCCESS;
1951 }
1952
1953 static UINT order_compare(struct tagMSIVIEW *view, MSIORDERINFO *order,
1954 UINT a, UINT b, UINT *swap)
1955 {
1956 UINT r, i, a_val = 0, b_val = 0;
1957
1958 *swap = 0;
1959 for (i = 0; i < order->num_cols; i++)
1960 {
1961 r = TABLE_fetch_int(view, a, order->cols[i], &a_val);
1962 if (r != ERROR_SUCCESS)
1963 return r;
1964
1965 r = TABLE_fetch_int(view, b, order->cols[i], &b_val);
1966 if (r != ERROR_SUCCESS)
1967 return r;
1968
1969 if (a_val != b_val)
1970 {
1971 if (a_val > b_val)
1972 *swap = 1;
1973 break;
1974 }
1975 }
1976
1977 return ERROR_SUCCESS;
1978 }
1979
1980 static UINT order_mergesort(struct tagMSIVIEW *view, MSIORDERINFO *order,
1981 UINT left, UINT right)
1982 {
1983 UINT r, i, j, temp;
1984 UINT swap = 0, center = (left + right) / 2;
1985 UINT *array = order->reorder;
1986
1987 if (left == right)
1988 return ERROR_SUCCESS;
1989
1990 /* sort the left half */
1991 r = order_mergesort(view, order, left, center);
1992 if (r != ERROR_SUCCESS)
1993 return r;
1994
1995 /* sort the right half */
1996 r = order_mergesort(view, order, center + 1, right);
1997 if (r != ERROR_SUCCESS)
1998 return r;
1999
2000 for (i = left, j = center + 1; (i <= center) && (j <= right); i++)
2001 {
2002 r = order_compare(view, order, array[i], array[j], &swap);
2003 if (r != ERROR_SUCCESS)
2004 return r;
2005
2006 if (swap)
2007 {
2008 temp = array[j];
2009 memmove(&array[i + 1], &array[i], (j - i) * sizeof(UINT));
2010 array[i] = temp;
2011 j++;
2012 center++;
2013 }
2014 }
2015
2016 return ERROR_SUCCESS;
2017 }
2018
2019 static UINT order_verify(struct tagMSIVIEW *view, MSIORDERINFO *order, UINT num_rows)
2020 {
2021 UINT i, swap, r;
2022
2023 for (i = 1; i < num_rows; i++)
2024 {
2025 r = order_compare(view, order, order->reorder[i - 1],
2026 order->reorder[i], &swap);
2027 if (r != ERROR_SUCCESS)
2028 return r;
2029
2030 if (!swap)
2031 continue;
2032
2033 ERR("Bad order! %d\n", i);
2034 return ERROR_FUNCTION_FAILED;
2035 }
2036
2037 return ERROR_SUCCESS;
2038 }
2039
2040 static UINT TABLE_sort(struct tagMSIVIEW *view, column_info *columns)
2041 {
2042 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
2043 MSIORDERINFO *order;
2044 column_info *ptr;
2045 UINT r, i;
2046 UINT rows, cols;
2047
2048 TRACE("sorting table %s\n", debugstr_w(tv->name));
2049
2050 r = TABLE_get_dimensions(view, &rows, &cols);
2051 if (r != ERROR_SUCCESS)
2052 return r;
2053
2054 if (rows == 0)
2055 return ERROR_SUCCESS;
2056
2057 order = msi_alloc_zero(sizeof(MSIORDERINFO) + sizeof(UINT) * cols);
2058 if (!order)
2059 return ERROR_OUTOFMEMORY;
2060
2061 for (ptr = columns; ptr; ptr = ptr->next)
2062 order_add_column(view, order, ptr->column);
2063
2064 order->reorder = msi_alloc(rows * sizeof(UINT));
2065 if (!order->reorder)
2066 return ERROR_OUTOFMEMORY;
2067
2068 for (i = 0; i < rows; i++)
2069 order->reorder[i] = i;
2070
2071 r = order_mergesort(view, order, 0, rows - 1);
2072 if (r != ERROR_SUCCESS)
2073 return r;
2074
2075 r = order_verify(view, order, rows);
2076 if (r != ERROR_SUCCESS)
2077 return r;
2078
2079 tv->order = order;
2080
2081 return ERROR_SUCCESS;
2082 }
2083
2084 static const MSIVIEWOPS table_ops =
2085 {
2086 TABLE_fetch_int,
2087 TABLE_fetch_stream,
2088 TABLE_get_row,
2089 TABLE_set_row,
2090 TABLE_insert_row,
2091 TABLE_delete_row,
2092 TABLE_execute,
2093 TABLE_close,
2094 TABLE_get_dimensions,
2095 TABLE_get_column_info,
2096 TABLE_modify,
2097 TABLE_delete,
2098 TABLE_find_matching_rows,
2099 TABLE_add_ref,
2100 TABLE_release,
2101 TABLE_add_column,
2102 TABLE_remove_column,
2103 TABLE_sort,
2104 };
2105
2106 UINT TABLE_CreateView( MSIDATABASE *db, LPCWSTR name, MSIVIEW **view )
2107 {
2108 MSITABLEVIEW *tv ;
2109 UINT r, sz;
2110
2111 static const WCHAR Streams[] = {'_','S','t','r','e','a','m','s',0};
2112 static const WCHAR Storages[] = {'_','S','t','o','r','a','g','e','s',0};
2113
2114 TRACE("%p %s %p\n", db, debugstr_w(name), view );
2115
2116 if ( !lstrcmpW( name, Streams ) )
2117 return STREAMS_CreateView( db, view );
2118 else if ( !lstrcmpW( name, Storages ) )
2119 return STORAGES_CreateView( db, view );
2120
2121 sz = sizeof *tv + lstrlenW(name)*sizeof name[0] ;
2122 tv = msi_alloc_zero( sz );
2123 if( !tv )
2124 return ERROR_FUNCTION_FAILED;
2125
2126 r = get_table( db, name, &tv->table );
2127 if( r != ERROR_SUCCESS )
2128 {
2129 msi_free( tv );
2130 WARN("table not found\n");
2131 return r;
2132 }
2133
2134 TRACE("table %p found with %d columns\n", tv->table, tv->table->col_count);
2135
2136 /* fill the structure */
2137 tv->view.ops = &table_ops;
2138 tv->db = db;
2139 tv->columns = tv->table->colinfo;
2140 tv->num_cols = tv->table->col_count;
2141 tv->row_size = msi_table_get_row_size( tv->table->colinfo, tv->table->col_count );
2142
2143 TRACE("%s one row is %d bytes\n", debugstr_w(name), tv->row_size );
2144
2145 *view = (MSIVIEW*) tv;
2146 lstrcpyW( tv->name, name );
2147
2148 return ERROR_SUCCESS;
2149 }
2150
2151 UINT MSI_CommitTables( MSIDATABASE *db )
2152 {
2153 UINT r;
2154 MSITABLE *table = NULL;
2155
2156 TRACE("%p\n",db);
2157
2158 r = msi_save_string_table( db->strings, db->storage );
2159 if( r != ERROR_SUCCESS )
2160 {
2161 WARN("failed to save string table r=%08x\n",r);
2162 return r;
2163 }
2164
2165 LIST_FOR_EACH_ENTRY( table, &db->tables, MSITABLE, entry )
2166 {
2167 r = save_table( db, table );
2168 if( r != ERROR_SUCCESS )
2169 {
2170 WARN("failed to save table %s (r=%08x)\n",
2171 debugstr_w(table->name), r);
2172 return r;
2173 }
2174 }
2175
2176 /* force everything to reload next time */
2177 free_cached_tables( db );
2178
2179 return ERROR_SUCCESS;
2180 }
2181
2182 MSICONDITION MSI_DatabaseIsTablePersistent( MSIDATABASE *db, LPCWSTR table )
2183 {
2184 MSITABLE *t;
2185 UINT r;
2186
2187 TRACE("%p %s\n", db, debugstr_w(table));
2188
2189 if (!table)
2190 return MSICONDITION_ERROR;
2191
2192 r = get_table( db, table, &t );
2193 if (r != ERROR_SUCCESS)
2194 return MSICONDITION_NONE;
2195
2196 if (t->persistent)
2197 return MSICONDITION_TRUE;
2198 else
2199 return MSICONDITION_FALSE;
2200 }
2201
2202 static UINT read_raw_int(const BYTE *data, UINT col, UINT bytes)
2203 {
2204 UINT ret = 0, i;
2205
2206 for (i = 0; i < bytes; i++)
2207 ret += (data[col + i] << i * 8);
2208
2209 return ret;
2210 }
2211
2212 static MSIRECORD *msi_get_transform_record( const MSITABLEVIEW *tv, const string_table *st,
2213 const BYTE *rawdata, UINT bytes_per_strref )
2214 {
2215 UINT i, val, ofs = 0;
2216 USHORT mask;
2217 MSICOLUMNINFO *columns = tv->columns;
2218 MSIRECORD *rec;
2219
2220 mask = rawdata[0] | (rawdata[1] << 8);
2221 rawdata += 2;
2222
2223 rec = MSI_CreateRecord( tv->num_cols );
2224 if( !rec )
2225 return rec;
2226
2227 TRACE("row ->\n");
2228 for( i=0; i<tv->num_cols; i++ )
2229 {
2230 if ( (mask&1) && (i>=(mask>>8)) )
2231 break;
2232 /* all keys must be present */
2233 if ( (~mask&1) && (~columns[i].type & MSITYPE_KEY) && ((1<<i) & ~mask) )
2234 continue;
2235
2236 if( (columns[i].type & MSITYPE_STRING) &&
2237 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2238 {
2239 LPCWSTR sval;
2240
2241 val = read_raw_int(rawdata, ofs, bytes_per_strref);
2242 sval = msi_string_lookup_id( st, val );
2243 MSI_RecordSetStringW( rec, i+1, sval );
2244 TRACE(" field %d [%s]\n", i+1, debugstr_w(sval));
2245 ofs += bytes_per_strref;
2246 }
2247 else
2248 {
2249 UINT n = bytes_per_column( &columns[i] );
2250 switch( n )
2251 {
2252 case 2:
2253 val = read_raw_int(rawdata, ofs, n);
2254 if (val)
2255 MSI_RecordSetInteger( rec, i+1, val^0x8000 );
2256 TRACE(" field %d [0x%04x]\n", i+1, val );
2257 break;
2258 case 4:
2259 val = read_raw_int(rawdata, ofs, n);
2260 if (val)
2261 MSI_RecordSetInteger( rec, i+1, val^0x80000000 );
2262 TRACE(" field %d [0x%08x]\n", i+1, val );
2263 break;
2264 default:
2265 ERR("oops - unknown column width %d\n", n);
2266 break;
2267 }
2268 ofs += n;
2269 }
2270 }
2271 return rec;
2272 }
2273
2274 static void dump_record( MSIRECORD *rec )
2275 {
2276 UINT i, n;
2277
2278 n = MSI_RecordGetFieldCount( rec );
2279 for( i=1; i<=n; i++ )
2280 {
2281 LPCWSTR sval = MSI_RecordGetString( rec, i );
2282
2283 if( MSI_RecordIsNull( rec, i ) )
2284 TRACE("row -> []\n");
2285 else if( (sval = MSI_RecordGetString( rec, i )) )
2286 TRACE("row -> [%s]\n", debugstr_w(sval));
2287 else
2288 TRACE("row -> [0x%08x]\n", MSI_RecordGetInteger( rec, i ) );
2289 }
2290 }
2291
2292 static void dump_table( const string_table *st, const USHORT *rawdata, UINT rawsize )
2293 {
2294 LPCWSTR sval;
2295 UINT i;
2296
2297 for( i=0; i<(rawsize/2); i++ )
2298 {
2299 sval = msi_string_lookup_id( st, rawdata[i] );
2300 MESSAGE(" %04x %s\n", rawdata[i], debugstr_w(sval) );
2301 }
2302 }
2303
2304 static UINT* msi_record_to_row( const MSITABLEVIEW *tv, MSIRECORD *rec )
2305 {
2306 LPCWSTR str;
2307 UINT i, r, *data;
2308
2309 data = msi_alloc( tv->num_cols *sizeof (UINT) );
2310 for( i=0; i<tv->num_cols; i++ )
2311 {
2312 data[i] = 0;
2313
2314 if ( ~tv->columns[i].type & MSITYPE_KEY )
2315 continue;
2316
2317 /* turn the transform column value into a row value */
2318 if ( ( tv->columns[i].type & MSITYPE_STRING ) &&
2319 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2320 {
2321 str = MSI_RecordGetString( rec, i+1 );
2322 r = msi_string2idW( tv->db->strings, str, &data[i] );
2323
2324 /* if there's no matching string in the string table,
2325 these keys can't match any record, so fail now. */
2326 if( ERROR_SUCCESS != r )
2327 {
2328 msi_free( data );
2329 return NULL;
2330 }
2331 }
2332 else
2333 {
2334 data[i] = MSI_RecordGetInteger( rec, i+1 );
2335 if ((tv->columns[i].type&0xff) == 2)
2336 data[i] += 0x8000;
2337 else
2338 data[i] += 0x80000000;
2339 }
2340 }
2341 return data;
2342 }
2343
2344 static UINT msi_row_matches( MSITABLEVIEW *tv, UINT row, const UINT *data )
2345 {
2346 UINT i, r, x, ret = ERROR_FUNCTION_FAILED;
2347
2348 for( i=0; i<tv->num_cols; i++ )
2349 {
2350 if ( ~tv->columns[i].type & MSITYPE_KEY )
2351 continue;
2352
2353 /* turn the transform column value into a row value */
2354 r = TABLE_fetch_int( &tv->view, row, i+1, &x );
2355 if ( r != ERROR_SUCCESS )
2356 {
2357 ERR("TABLE_fetch_int shouldn't fail here\n");
2358 break;
2359 }
2360
2361 /* if this key matches, move to the next column */
2362 if ( x != data[i] )
2363 {
2364 ret = ERROR_FUNCTION_FAILED;
2365 break;
2366 }
2367
2368 ret = ERROR_SUCCESS;
2369 }
2370
2371 return ret;
2372 }
2373
2374 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row )
2375 {
2376 UINT i, r = ERROR_FUNCTION_FAILED, *data;
2377
2378 data = msi_record_to_row( tv, rec );
2379 if( !data )
2380 return r;
2381 for( i = 0; i < tv->table->row_count + tv->table->nonpersistent_row_count; i++ )
2382 {
2383 r = msi_row_matches( tv, i, data );
2384 if( r == ERROR_SUCCESS )
2385 {
2386 *row = i;
2387 break;
2388 }
2389 }
2390 msi_free( data );
2391 return r;
2392 }
2393
2394 typedef struct
2395 {
2396 struct list entry;
2397 LPWSTR name;
2398 } TRANSFORMDATA;
2399
2400 static UINT msi_table_load_transform( MSIDATABASE *db, IStorage *stg,
2401 string_table *st, TRANSFORMDATA *transform,
2402 UINT bytes_per_strref )
2403 {
2404 UINT rawsize = 0;
2405 BYTE *rawdata = NULL;
2406 MSITABLEVIEW *tv = NULL;
2407 UINT r, n, sz, i, mask;
2408 MSIRECORD *rec = NULL;
2409 UINT colcol = 0;
2410 WCHAR coltable[32];
2411 LPWSTR name;
2412
2413 if (!transform)
2414 return ERROR_SUCCESS;
2415
2416 name = transform->name;
2417
2418 coltable[0] = 0;
2419 TRACE("%p %p %p %s\n", db, stg, st, debugstr_w(name) );
2420
2421 /* read the transform data */
2422 read_stream_data( stg, name, TRUE, &rawdata, &rawsize );
2423 if ( !rawdata )
2424 {
2425 TRACE("table %s empty\n", debugstr_w(name) );
2426 return ERROR_INVALID_TABLE;
2427 }
2428
2429 /* create a table view */
2430 r = TABLE_CreateView( db, name, (MSIVIEW**) &tv );
2431 if( r != ERROR_SUCCESS )
2432 goto err;
2433
2434 r = tv->view.ops->execute( &tv->view, NULL );
2435 if( r != ERROR_SUCCESS )
2436 goto err;
2437
2438 TRACE("name = %s columns = %u row_size = %u raw size = %u\n",
2439 debugstr_w(name), tv->num_cols, tv->row_size, rawsize );
2440
2441 /* interpret the data */
2442 r = ERROR_SUCCESS;
2443 for( n=0; n < rawsize; )
2444 {
2445 mask = rawdata[n] | (rawdata[n+1] << 8);
2446
2447 if (mask&1)
2448 {
2449 /*
2450 * if the low bit is set, columns are continuous and
2451 * the number of columns is specified in the high byte
2452 */
2453 sz = 2;
2454 for( i=0; i<tv->num_cols; i++ )
2455 {
2456 if( (tv->columns[i].type & MSITYPE_STRING) &&
2457 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2458 sz += bytes_per_strref;
2459 else
2460 sz += bytes_per_column( &tv->columns[i] );
2461 }
2462 }
2463 else
2464 {
2465 /*
2466 * If the low bit is not set, mask is a bitmask.
2467 * Excepting for key fields, which are always present,
2468 * each bit indicates that a field is present in the transform record.
2469 *
2470 * mask == 0 is a special case ... only the keys will be present
2471 * and it means that this row should be deleted.
2472 */
2473 sz = 2;
2474 for( i=0; i<tv->num_cols; i++ )
2475 {
2476 if( (tv->columns[i].type & MSITYPE_KEY) || ((1<<i)&mask))
2477 {
2478 if( (tv->columns[i].type & MSITYPE_STRING) &&
2479 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2480 sz += bytes_per_strref;
2481 else
2482 sz += bytes_per_column( &tv->columns[i] );
2483 }
2484 }
2485 }
2486
2487 /* check we didn't run of the end of the table */
2488 if ( (n+sz) > rawsize )
2489 {
2490 ERR("borked.\n");
2491 dump_table( st, (USHORT *)rawdata, rawsize );
2492 break;
2493 }
2494
2495 rec = msi_get_transform_record( tv, st, &rawdata[n], bytes_per_strref );
2496 if (rec)
2497 {
2498 if ( mask & 1 )
2499 {
2500 WCHAR table[32];
2501 DWORD sz = 32;
2502 UINT number = MSI_NULL_INTEGER;
2503
2504 TRACE("inserting record\n");
2505
2506 if (!lstrcmpW(name, szColumns))
2507 {
2508 MSI_RecordGetStringW( rec, 1, table, &sz );
2509 number = MSI_RecordGetInteger( rec, 2 );
2510
2511 /*
2512 * Native msi seems writes nul into the Number (2nd) column of
2513 * the _Columns table, only when the columns are from a new table
2514 */
2515 if ( number == MSI_NULL_INTEGER )
2516 {
2517 /* reset the column number on a new table */
2518 if ( lstrcmpW(coltable, table) )
2519 {
2520 colcol = 0;
2521 lstrcpyW( coltable, table );
2522 }
2523
2524 /* fix nul column numbers */
2525 MSI_RecordSetInteger( rec, 2, ++colcol );
2526 }
2527 }
2528
2529 r = TABLE_insert_row( &tv->view, rec, FALSE );
2530 if (r != ERROR_SUCCESS)
2531 ERR("insert row failed\n");
2532
2533 if ( number != MSI_NULL_INTEGER && !lstrcmpW(name, szColumns) )
2534 msi_update_table_columns( db, table );
2535 }
2536 else
2537 {
2538 UINT row = 0;
2539
2540 r = msi_table_find_row( tv, rec, &row );
2541 if (r != ERROR_SUCCESS)
2542 ERR("no matching row to transform\n");
2543 else if ( mask )
2544 {
2545 TRACE("modifying row [%d]:\n", row);
2546 TABLE_set_row( &tv->view, row, rec, mask );
2547 }
2548 else
2549 {
2550 TRACE("deleting row [%d]:\n", row);
2551 TABLE_delete_row( &tv->view, row );
2552 }
2553 }
2554 if( TRACE_ON(msidb) ) dump_record( rec );
2555 msiobj_release( &rec->hdr );
2556 }
2557
2558 n += sz;
2559 }
2560
2561 err:
2562 /* no need to free the table, it's associated with the database */
2563 msi_free( rawdata );
2564 if( tv )
2565 tv->view.ops->delete( &tv->view );
2566
2567 return ERROR_SUCCESS;
2568 }
2569
2570 /*
2571 * msi_table_apply_transform
2572 *
2573 * Enumerate the table transforms in a transform storage and apply each one.
2574 */
2575 UINT msi_table_apply_transform( MSIDATABASE *db, IStorage *stg )
2576 {
2577 struct list transforms;
2578 IEnumSTATSTG *stgenum = NULL;
2579 TRANSFORMDATA *transform;
2580 TRANSFORMDATA *tables = NULL, *columns = NULL;
2581 HRESULT r;
2582 STATSTG stat;
2583 string_table *strings;
2584 UINT ret = ERROR_FUNCTION_FAILED;
2585 UINT bytes_per_strref;
2586
2587 TRACE("%p %p\n", db, stg );
2588
2589 strings = msi_load_string_table( stg, &bytes_per_strref );
2590 if( !strings )
2591 goto end;
2592
2593 r = IStorage_EnumElements( stg, 0, NULL, 0, &stgenum );
2594 if( FAILED( r ) )
2595 goto end;
2596
2597 list_init(&transforms);
2598
2599 while ( TRUE )
2600 {
2601 MSITABLEVIEW *tv = NULL;
2602 WCHAR name[0x40];
2603 ULONG count = 0;
2604
2605 r = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
2606 if ( FAILED( r ) || !count )
2607 break;
2608
2609 decode_streamname( stat.pwcsName, name );
2610 CoTaskMemFree( stat.pwcsName );
2611 if ( name[0] != 0x4840 )
2612 continue;
2613
2614 if ( !lstrcmpW( name+1, szStringPool ) ||
2615 !lstrcmpW( name+1, szStringData ) )
2616 continue;
2617
2618 transform = msi_alloc_zero( sizeof(TRANSFORMDATA) );
2619 if ( !transform )
2620 break;
2621
2622 list_add_tail( &transforms, &transform->entry );
2623
2624 transform->name = strdupW( name + 1 );
2625
2626 if ( !lstrcmpW( transform->name, szTables ) )
2627 tables = transform;
2628 else if (!lstrcmpW( transform->name, szColumns ) )
2629 columns = transform;
2630
2631 TRACE("transform contains stream %s\n", debugstr_w(name));
2632
2633 /* load the table */
2634 r = TABLE_CreateView( db, transform->name, (MSIVIEW**) &tv );
2635 if( r != ERROR_SUCCESS )
2636 continue;
2637
2638 r = tv->view.ops->execute( &tv->view, NULL );
2639 if( r != ERROR_SUCCESS )
2640 {
2641 tv->view.ops->delete( &tv->view );
2642 continue;
2643 }
2644
2645 tv->view.ops->delete( &tv->view );
2646 }
2647
2648 /*
2649 * Apply _Tables and _Columns transforms first so that
2650 * the table metadata is correct, and empty tables exist.
2651 */
2652 ret = msi_table_load_transform( db, stg, strings, tables, bytes_per_strref );
2653 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2654 goto end;
2655
2656 ret = msi_table_load_transform( db, stg, strings, columns, bytes_per_strref );
2657 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2658 goto end;
2659
2660 ret = ERROR_SUCCESS;
2661
2662 while ( !list_empty( &transforms ) )
2663 {
2664 transform = LIST_ENTRY( list_head( &transforms ), TRANSFORMDATA, entry );
2665
2666 if ( lstrcmpW( transform->name, szColumns ) &&
2667 lstrcmpW( transform->name, szTables ) &&
2668 ret == ERROR_SUCCESS )
2669 {
2670 ret = msi_table_load_transform( db, stg, strings, transform, bytes_per_strref );
2671 }
2672
2673 list_remove( &transform->entry );
2674 msi_free( transform->name );
2675 msi_free( transform );
2676 }
2677
2678 if ( ret == ERROR_SUCCESS )
2679 append_storage_to_db( db, stg );
2680
2681 end:
2682 if ( stgenum )
2683 IEnumSTATSTG_Release( stgenum );
2684 if ( strings )
2685 msi_destroy_stringtable( strings );
2686
2687 return ret;
2688 }
2689
2690 void append_storage_to_db( MSIDATABASE *db, IStorage *stg )
2691 {
2692 MSITRANSFORM *t;
2693
2694 t = msi_alloc( sizeof *t );
2695 t->stg = stg;
2696 IStorage_AddRef( stg );
2697 list_add_tail( &db->transforms, &t->entry );
2698 }
2699
2700 void msi_free_transforms( MSIDATABASE *db )
2701 {
2702 while( !list_empty( &db->transforms ) )
2703 {
2704 MSITRANSFORM *t = LIST_ENTRY( list_head( &db->transforms ),
2705 MSITRANSFORM, entry );
2706 list_remove( &t->entry );
2707 IStorage_Release( t->stg );
2708 msi_free( t );
2709 }
2710 }
Maarten's multimedia branch