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[wine/wine64.git] / dlls / msi / table.c
blobf54f6b2c92cc77e4d5433662bafaed86a2171776
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 static const MSICOLUMNINFO _Columns_cols[4] = {
105 { szColumns, 1, szTable, MSITYPE_VALID | MSITYPE_STRING | MSITYPE_KEY | 64, 0, 0, NULL },
106 { szColumns, 2, szNumber, MSITYPE_VALID | MSITYPE_KEY | 2, 2, 0, NULL },
107 { szColumns, 3, szName, MSITYPE_VALID | MSITYPE_STRING | 64, 4, 0, NULL },
108 { szColumns, 4, szType, MSITYPE_VALID | 2, 6, 0, NULL },
109 };
110
111 static const MSICOLUMNINFO _Tables_cols[1] = {
112 { szTables, 1, szName, MSITYPE_VALID | MSITYPE_STRING | MSITYPE_KEY | 64, 0, 0, NULL },
113 };
114
115 #define MAX_STREAM_NAME 0x1f
116
117 static UINT table_get_column_info( MSIDATABASE *db, LPCWSTR name,
118 MSICOLUMNINFO **pcols, UINT *pcount );
119 static void table_calc_column_offsets( MSIDATABASE *db, MSICOLUMNINFO *colinfo,
120 DWORD count );
121 static UINT get_tablecolumns( MSIDATABASE *db,
122 LPCWSTR szTableName, MSICOLUMNINFO *colinfo, UINT *sz);
123 static void msi_free_colinfo( MSICOLUMNINFO *colinfo, UINT count );
124
125 static inline UINT bytes_per_column( MSIDATABASE *db, const MSICOLUMNINFO *col )
126 {
127 if( MSITYPE_IS_BINARY(col->type) )
128 return 2;
129 if( col->type & MSITYPE_STRING )
130 return db->bytes_per_strref;
131 if( (col->type & 0xff) > 4 )
132 ERR("Invalid column size!\n");
133 return col->type & 0xff;
134 }
135
136 static int utf2mime(int x)
137 {
138 if( (x>='0') && (x<='9') )
139 return x-'0';
140 if( (x>='A') && (x<='Z') )
141 return x-'A'+10;
142 if( (x>='a') && (x<='z') )
143 return x-'a'+10+26;
144 if( x=='.' )
145 return 10+26+26;
146 if( x=='_' )
147 return 10+26+26+1;
148 return -1;
149 }
150
151 LPWSTR encode_streamname(BOOL bTable, LPCWSTR in)
152 {
153 DWORD count = MAX_STREAM_NAME;
154 DWORD ch, next;
155 LPWSTR out, p;
156
157 if( !bTable )
158 count = lstrlenW( in )+2;
159 out = msi_alloc( count*sizeof(WCHAR) );
160 p = out;
161
162 if( bTable )
163 {
164 *p++ = 0x4840;
165 count --;
166 }
167 while( count -- )
168 {
169 ch = *in++;
170 if( !ch )
171 {
172 *p = ch;
173 return out;
174 }
175 if( ( ch < 0x80 ) && ( utf2mime(ch) >= 0 ) )
176 {
177 ch = utf2mime(ch) + 0x4800;
178 next = *in;
179 if( next && (next<0x80) )
180 {
181 next = utf2mime(next);
182 if( next != -1 )
183 {
184 next += 0x3ffffc0;
185 ch += (next<<6);
186 in++;
187 }
188 }
189 }
190 *p++ = ch;
191 }
192 ERR("Failed to encode stream name (%s)\n",debugstr_w(in));
193 msi_free( out );
194 return NULL;
195 }
196
197 static int mime2utf(int x)
198 {
199 if( x<10 )
200 return x + '0';
201 if( x<(10+26))
202 return x - 10 + 'A';
203 if( x<(10+26+26))
204 return x - 10 - 26 + 'a';
205 if( x == (10+26+26) )
206 return '.';
207 return '_';
208 }
209
210 BOOL decode_streamname(LPCWSTR in, LPWSTR out)
211 {
212 WCHAR ch;
213 DWORD count = 0;
214
215 while ( (ch = *in++) )
216 {
217 if( (ch >= 0x3800 ) && (ch < 0x4840 ) )
218 {
219 if( ch >= 0x4800 )
220 ch = mime2utf(ch-0x4800);
221 else
222 {
223 ch -= 0x3800;
224 *out++ = mime2utf(ch&0x3f);
225 count++;
226 ch = mime2utf((ch>>6)&0x3f);
227 }
228 }
229 *out++ = ch;
230 count++;
231 }
232 *out = 0;
233 return count;
234 }
235
236 void enum_stream_names( IStorage *stg )
237 {
238 IEnumSTATSTG *stgenum = NULL;
239 HRESULT r;
240 STATSTG stat;
241 ULONG n, count;
242 WCHAR name[0x40];
243
244 r = IStorage_EnumElements( stg, 0, NULL, 0, &stgenum );
245 if( FAILED( r ) )
246 return;
247
248 n = 0;
249 while( 1 )
250 {
251 count = 0;
252 r = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
253 if( FAILED( r ) || !count )
254 break;
255 decode_streamname( stat.pwcsName, name );
256 TRACE("stream %2d -> %s %s\n", n,
257 debugstr_w(stat.pwcsName), debugstr_w(name) );
258 CoTaskMemFree( stat.pwcsName );
259 n++;
260 }
261
262 IEnumSTATSTG_Release( stgenum );
263 }
264
265 UINT read_stream_data( IStorage *stg, LPCWSTR stname, BOOL table,
266 BYTE **pdata, UINT *psz )
267 {
268 HRESULT r;
269 UINT ret = ERROR_FUNCTION_FAILED;
270 VOID *data;
271 ULONG sz, count;
272 IStream *stm = NULL;
273 STATSTG stat;
274 LPWSTR encname;
275
276 encname = encode_streamname(table, stname);
277
278 TRACE("%s -> %s\n",debugstr_w(stname),debugstr_w(encname));
279
280 r = IStorage_OpenStream(stg, encname, NULL,
281 STGM_READ | STGM_SHARE_EXCLUSIVE, 0, &stm);
282 msi_free( encname );
283 if( FAILED( r ) )
284 {
285 WARN("open stream failed r = %08x - empty table?\n", r);
286 return ret;
287 }
288
289 r = IStream_Stat(stm, &stat, STATFLAG_NONAME );
290 if( FAILED( r ) )
291 {
292 WARN("open stream failed r = %08x!\n", r);
293 goto end;
294 }
295
296 if( stat.cbSize.QuadPart >> 32 )
297 {
298 WARN("Too big!\n");
299 goto end;
300 }
301
302 sz = stat.cbSize.QuadPart;
303 data = msi_alloc( sz );
304 if( !data )
305 {
306 WARN("couldn't allocate memory r=%08x!\n", r);
307 ret = ERROR_NOT_ENOUGH_MEMORY;
308 goto end;
309 }
310
311 r = IStream_Read(stm, data, sz, &count );
312 if( FAILED( r ) || ( count != sz ) )
313 {
314 msi_free( data );
315 WARN("read stream failed r = %08x!\n", r);
316 goto end;
317 }
318
319 *pdata = data;
320 *psz = sz;
321 ret = ERROR_SUCCESS;
322
323 end:
324 IStream_Release( stm );
325
326 return ret;
327 }
328
329 UINT db_get_raw_stream( MSIDATABASE *db, LPCWSTR stname, IStream **stm )
330 {
331 LPWSTR encname;
332 HRESULT r;
333
334 encname = encode_streamname(FALSE, stname);
335
336 TRACE("%s -> %s\n",debugstr_w(stname),debugstr_w(encname));
337
338 r = IStorage_OpenStream(db->storage, encname, NULL,
339 STGM_READ | STGM_SHARE_EXCLUSIVE, 0, stm);
340 if( FAILED( r ) )
341 {
342 MSITRANSFORM *transform;
343
344 LIST_FOR_EACH_ENTRY( transform, &db->transforms, MSITRANSFORM, entry )
345 {
346 TRACE("looking for %s in transform storage\n", debugstr_w(stname) );
347 r = IStorage_OpenStream( transform->stg, encname, NULL,
348 STGM_READ | STGM_SHARE_EXCLUSIVE, 0, stm );
349 if (SUCCEEDED(r))
350 break;
351 }
352 }
353
354 msi_free( encname );
355
356 return SUCCEEDED(r) ? ERROR_SUCCESS : ERROR_FUNCTION_FAILED;
357 }
358
359 UINT read_raw_stream_data( MSIDATABASE *db, LPCWSTR stname,
360 USHORT **pdata, UINT *psz )
361 {
362 HRESULT r;
363 UINT ret = ERROR_FUNCTION_FAILED;
364 VOID *data;
365 ULONG sz, count;
366 IStream *stm = NULL;
367 STATSTG stat;
368
369 r = db_get_raw_stream( db, stname, &stm );
370 if( r != ERROR_SUCCESS)
371 return ret;
372 r = IStream_Stat(stm, &stat, STATFLAG_NONAME );
373 if( FAILED( r ) )
374 {
375 WARN("open stream failed r = %08x!\n", r);
376 goto end;
377 }
378
379 if( stat.cbSize.QuadPart >> 32 )
380 {
381 WARN("Too big!\n");
382 goto end;
383 }
384
385 sz = stat.cbSize.QuadPart;
386 data = msi_alloc( sz );
387 if( !data )
388 {
389 WARN("couldn't allocate memory r=%08x!\n", r);
390 ret = ERROR_NOT_ENOUGH_MEMORY;
391 goto end;
392 }
393
394 r = IStream_Read(stm, data, sz, &count );
395 if( FAILED( r ) || ( count != sz ) )
396 {
397 msi_free( data );
398 WARN("read stream failed r = %08x!\n", r);
399 goto end;
400 }
401
402 *pdata = data;
403 *psz = sz;
404 ret = ERROR_SUCCESS;
405
406 end:
407 IStream_Release( stm );
408
409 return ret;
410 }
411
412 UINT write_stream_data( IStorage *stg, LPCWSTR stname,
413 LPCVOID data, UINT sz, BOOL bTable )
414 {
415 HRESULT r;
416 UINT ret = ERROR_FUNCTION_FAILED;
417 ULONG count;
418 IStream *stm = NULL;
419 ULARGE_INTEGER size;
420 LARGE_INTEGER pos;
421 LPWSTR encname;
422
423 encname = encode_streamname(bTable, stname );
424 r = IStorage_OpenStream( stg, encname, NULL,
425 STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, &stm);
426 if( FAILED(r) )
427 {
428 r = IStorage_CreateStream( stg, encname,
429 STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, 0, &stm);
430 }
431 msi_free( encname );
432 if( FAILED( r ) )
433 {
434 WARN("open stream failed r = %08x\n", r);
435 return ret;
436 }
437
438 size.QuadPart = sz;
439 r = IStream_SetSize( stm, size );
440 if( FAILED( r ) )
441 {
442 WARN("Failed to SetSize\n");
443 goto end;
444 }
445
446 pos.QuadPart = 0;
447 r = IStream_Seek( stm, pos, STREAM_SEEK_SET, NULL );
448 if( FAILED( r ) )
449 {
450 WARN("Failed to Seek\n");
451 goto end;
452 }
453
454 if (sz)
455 {
456 r = IStream_Write(stm, data, sz, &count );
457 if( FAILED( r ) || ( count != sz ) )
458 {
459 WARN("Failed to Write\n");
460 goto end;
461 }
462 }
463
464 ret = ERROR_SUCCESS;
465
466 end:
467 IStream_Release( stm );
468
469 return ret;
470 }
471
472 static void free_table( MSITABLE *table )
473 {
474 UINT i;
475 for( i=0; i<table->row_count; i++ )
476 msi_free( table->data[i] );
477 msi_free( table->data );
478 for( i=0; i<table->nonpersistent_row_count; i++ )
479 msi_free( table->nonpersistent_data[i] );
480 msi_free( table->nonpersistent_data );
481 msi_free_colinfo( table->colinfo, table->col_count );
482 msi_free( table->colinfo );
483 msi_free( table );
484 }
485
486 static UINT msi_table_get_row_size( MSIDATABASE *db,const MSICOLUMNINFO *cols,
487 UINT count )
488 {
489 const MSICOLUMNINFO *last_col = &cols[count-1];
490 if (!count)
491 return 0;
492 return last_col->offset + bytes_per_column( db, last_col );
493 }
494
495 /* add this table to the list of cached tables in the database */
496 static UINT read_table_from_storage( MSIDATABASE *db, MSITABLE *t, IStorage *stg )
497 {
498 BYTE *rawdata = NULL;
499 UINT rawsize = 0, i, j, row_size = 0;
500
501 TRACE("%s\n",debugstr_w(t->name));
502
503 row_size = msi_table_get_row_size( db, t->colinfo, t->col_count );
504
505 /* if we can't read the table, just assume that it's empty */
506 read_stream_data( stg, t->name, TRUE, &rawdata, &rawsize );
507 if( !rawdata )
508 return ERROR_SUCCESS;
509
510 TRACE("Read %d bytes\n", rawsize );
511
512 if( rawsize % row_size )
513 {
514 WARN("Table size is invalid %d/%d\n", rawsize, row_size );
515 goto err;
516 }
517
518 t->row_count = rawsize / row_size;
519 t->data = msi_alloc_zero( t->row_count * sizeof (USHORT*) );
520 if( !t->data )
521 goto err;
522
523 /* transpose all the data */
524 TRACE("Transposing data from %d rows\n", t->row_count );
525 for( i=0; i<t->row_count; i++ )
526 {
527 t->data[i] = msi_alloc( row_size );
528 if( !t->data[i] )
529 goto err;
530
531 for( j=0; j<t->col_count; j++ )
532 {
533 UINT ofs = t->colinfo[j].offset;
534 UINT n = bytes_per_column( db, &t->colinfo[j] );
535 UINT k;
536
537 if ( n != 2 && n != 3 && n != 4 )
538 {
539 ERR("oops - unknown column width %d\n", n);
540 goto err;
541 }
542
543 for ( k = 0; k < n; k++ )
544 t->data[i][ofs + k] = rawdata[ofs*t->row_count + i * n + k];
545 }
546 }
547
548 msi_free( rawdata );
549 return ERROR_SUCCESS;
550 err:
551 msi_free( rawdata );
552 return ERROR_FUNCTION_FAILED;
553 }
554
555 void free_cached_tables( MSIDATABASE *db )
556 {
557 while( !list_empty( &db->tables ) )
558 {
559 MSITABLE *t = LIST_ENTRY( list_head( &db->tables ), MSITABLE, entry );
560
561 list_remove( &t->entry );
562 free_table( t );
563 }
564 }
565
566 static MSITABLE *find_cached_table( MSIDATABASE *db, LPCWSTR name )
567 {
568 MSITABLE *t;
569
570 LIST_FOR_EACH_ENTRY( t, &db->tables, MSITABLE, entry )
571 if( !lstrcmpW( name, t->name ) )
572 return t;
573
574 return NULL;
575 }
576
577 static UINT table_get_column_info( MSIDATABASE *db, LPCWSTR name, MSICOLUMNINFO **pcols, UINT *pcount )
578 {
579 UINT r, column_count = 0;
580 MSICOLUMNINFO *columns;
581
582 /* get the number of columns in this table */
583 column_count = 0;
584 r = get_tablecolumns( db, name, NULL, &column_count );
585 if( r != ERROR_SUCCESS )
586 return r;
587
588 *pcount = column_count;
589
590 /* if there's no columns, there's no table */
591 if( column_count == 0 )
592 return ERROR_INVALID_PARAMETER;
593
594 TRACE("Table %s found\n", debugstr_w(name) );
595
596 columns = msi_alloc( column_count*sizeof (MSICOLUMNINFO) );
597 if( !columns )
598 return ERROR_FUNCTION_FAILED;
599
600 r = get_tablecolumns( db, name, columns, &column_count );
601 if( r != ERROR_SUCCESS )
602 {
603 msi_free( columns );
604 return ERROR_FUNCTION_FAILED;
605 }
606
607 *pcols = columns;
608
609 return r;
610 }
611
612 UINT msi_create_table( MSIDATABASE *db, LPCWSTR name, column_info *col_info,
613 BOOL persistent, MSITABLE **table_ret)
614 {
615 UINT r, nField;
616 MSIVIEW *tv = NULL;
617 MSIRECORD *rec = NULL;
618 column_info *col;
619 MSITABLE *table;
620 UINT i;
621
622 /* only add tables that don't exist already */
623 if( TABLE_Exists(db, name ) )
624 {
625 WARN("table %s exists\n", debugstr_w(name));
626 return ERROR_BAD_QUERY_SYNTAX;
627 }
628
629 table = msi_alloc( sizeof (MSITABLE) + lstrlenW(name)*sizeof (WCHAR) );
630 if( !table )
631 return ERROR_FUNCTION_FAILED;
632
633 table->ref_count = 1;
634 table->row_count = 0;
635 table->data = NULL;
636 table->nonpersistent_row_count = 0;
637 table->nonpersistent_data = NULL;
638 table->colinfo = NULL;
639 table->col_count = 0;
640 table->persistent = persistent;
641 lstrcpyW( table->name, name );
642
643 for( col = col_info; col; col = col->next )
644 table->col_count++;
645
646 table->colinfo = msi_alloc( table->col_count * sizeof(MSICOLUMNINFO) );
647 if (!table->colinfo)
648 {
649 free_table( table );
650 return ERROR_FUNCTION_FAILED;
651 }
652
653 for( i = 0, col = col_info; col; i++, col = col->next )
654 {
655 table->colinfo[ i ].tablename = strdupW( col->table );
656 table->colinfo[ i ].number = i + 1;
657 table->colinfo[ i ].colname = strdupW( col->column );
658 table->colinfo[ i ].type = col->type;
659 table->colinfo[ i ].offset = 0;
660 table->colinfo[ i ].ref_count = 0;
661 table->colinfo[ i ].hash_table = NULL;
662 }
663 table_calc_column_offsets( db, table->colinfo, table->col_count);
664
665 r = TABLE_CreateView( db, szTables, &tv );
666 TRACE("CreateView returned %x\n", r);
667 if( r )
668 {
669 free_table( table );
670 return r;
671 }
672
673 r = tv->ops->execute( tv, 0 );
674 TRACE("tv execute returned %x\n", r);
675 if( r )
676 goto err;
677
678 rec = MSI_CreateRecord( 1 );
679 if( !rec )
680 goto err;
681
682 r = MSI_RecordSetStringW( rec, 1, name );
683 if( r )
684 goto err;
685
686 r = tv->ops->insert_row( tv, rec, !persistent );
687 TRACE("insert_row returned %x\n", r);
688 if( r )
689 goto err;
690
691 tv->ops->delete( tv );
692 tv = NULL;
693
694 msiobj_release( &rec->hdr );
695 rec = NULL;
696
697 if( persistent )
698 {
699 /* add each column to the _Columns table */
700 r = TABLE_CreateView( db, szColumns, &tv );
701 if( r )
702 return r;
703
704 r = tv->ops->execute( tv, 0 );
705 TRACE("tv execute returned %x\n", r);
706 if( r )
707 goto err;
708
709 rec = MSI_CreateRecord( 4 );
710 if( !rec )
711 goto err;
712
713 r = MSI_RecordSetStringW( rec, 1, name );
714 if( r )
715 goto err;
716
717 /*
718 * need to set the table, column number, col name and type
719 * for each column we enter in the table
720 */
721 nField = 1;
722 for( col = col_info; col; col = col->next )
723 {
724 r = MSI_RecordSetInteger( rec, 2, nField );
725 if( r )
726 goto err;
727
728 r = MSI_RecordSetStringW( rec, 3, col->column );
729 if( r )
730 goto err;
731
732 r = MSI_RecordSetInteger( rec, 4, col->type );
733 if( r )
734 goto err;
735
736 r = tv->ops->insert_row( tv, rec, FALSE );
737 if( r )
738 goto err;
739
740 nField++;
741 }
742 if( !col )
743 r = ERROR_SUCCESS;
744 }
745
746 err:
747 if (rec)
748 msiobj_release( &rec->hdr );
749 /* FIXME: remove values from the string table on error */
750 if( tv )
751 tv->ops->delete( tv );
752
753 if (r == ERROR_SUCCESS)
754 {
755 list_add_head( &db->tables, &table->entry );
756 *table_ret = table;
757 }
758 else
759 free_table( table );
760
761 return r;
762 }
763
764 static UINT get_table( MSIDATABASE *db, LPCWSTR name, MSITABLE **table_ret )
765 {
766 MSITABLE *table;
767 UINT r;
768
769 /* first, see if the table is cached */
770 table = find_cached_table( db, name );
771 if( table )
772 {
773 *table_ret = table;
774 return ERROR_SUCCESS;
775 }
776
777 /* nonexistent tables should be interpreted as empty tables */
778 table = msi_alloc( sizeof (MSITABLE) + lstrlenW(name)*sizeof (WCHAR) );
779 if( !table )
780 return ERROR_FUNCTION_FAILED;
781
782 table->row_count = 0;
783 table->data = NULL;
784 table->nonpersistent_row_count = 0;
785 table->nonpersistent_data = NULL;
786 table->colinfo = NULL;
787 table->col_count = 0;
788 table->persistent = TRUE;
789 lstrcpyW( table->name, name );
790
791 r = table_get_column_info( db, name, &table->colinfo, &table->col_count);
792 if (r != ERROR_SUCCESS)
793 {
794 free_table ( table );
795 return r;
796 }
797
798 r = read_table_from_storage( db, table, db->storage );
799 if( r != ERROR_SUCCESS )
800 {
801 free_table( table );
802 return r;
803 }
804
805 list_add_head( &db->tables, &table->entry );
806 *table_ret = table;
807 return ERROR_SUCCESS;
808 }
809
810 static UINT save_table( MSIDATABASE *db, const MSITABLE *t )
811 {
812 BYTE *rawdata = NULL, *p;
813 UINT rawsize, r, i, j, row_size;
814
815 /* Nothing to do for non-persistent tables */
816 if( !t->persistent )
817 return ERROR_SUCCESS;
818
819 TRACE("Saving %s\n", debugstr_w( t->name ) );
820
821 row_size = msi_table_get_row_size( db, t->colinfo, t->col_count );
822
823 rawsize = t->row_count * row_size;
824 rawdata = msi_alloc_zero( rawsize );
825 if( !rawdata )
826 {
827 r = ERROR_NOT_ENOUGH_MEMORY;
828 goto err;
829 }
830
831 p = rawdata;
832 for( i=0; i<t->col_count; i++ )
833 {
834 for( j=0; j<t->row_count; j++ )
835 {
836 UINT offset = t->colinfo[i].offset;
837
838 *p++ = t->data[j][offset];
839 *p++ = t->data[j][offset + 1];
840 if( 4 == bytes_per_column( db, &t->colinfo[i] ) )
841 {
842 *p++ = t->data[j][offset + 2];
843 *p++ = t->data[j][offset + 3];
844 }
845 }
846 }
847
848 TRACE("writing %d bytes\n", rawsize);
849 r = write_stream_data( db->storage, t->name, rawdata, rawsize, TRUE );
850
851 err:
852 msi_free( rawdata );
853
854 return r;
855 }
856
857 static void table_calc_column_offsets( MSIDATABASE *db, MSICOLUMNINFO *colinfo,
858 DWORD count )
859 {
860 DWORD i;
861
862 for( i=0; colinfo && (i<count); i++ )
863 {
864 assert( (i+1) == colinfo[ i ].number );
865 if (i)
866 colinfo[i].offset = colinfo[ i - 1 ].offset
867 + bytes_per_column( db, &colinfo[ i - 1 ] );
868 else
869 colinfo[i].offset = 0;
870 TRACE("column %d is [%s] with type %08x ofs %d\n",
871 colinfo[i].number, debugstr_w(colinfo[i].colname),
872 colinfo[i].type, colinfo[i].offset);
873 }
874 }
875
876 static UINT get_defaulttablecolumns( MSIDATABASE *db, LPCWSTR name,
877 MSICOLUMNINFO *colinfo, UINT *sz)
878 {
879 const MSICOLUMNINFO *p;
880 DWORD i, n;
881
882 TRACE("%s\n", debugstr_w(name));
883
884 if (!lstrcmpW( name, szTables ))
885 {
886 p = _Tables_cols;
887 n = 1;
888 }
889 else if (!lstrcmpW( name, szColumns ))
890 {
891 p = _Columns_cols;
892 n = 4;
893 }
894 else
895 return ERROR_FUNCTION_FAILED;
896
897 /* duplicate the string data so we can free it in msi_free_colinfo */
898 for (i=0; i<n; i++)
899 {
900 if (colinfo && (i < *sz) )
901 {
902 colinfo[i] = p[i];
903 colinfo[i].tablename = strdupW( p[i].tablename );
904 colinfo[i].colname = strdupW( p[i].colname );
905 }
906 if( colinfo && (i >= *sz) )
907 break;
908 }
909 table_calc_column_offsets( db, colinfo, n );
910 *sz = n;
911 return ERROR_SUCCESS;
912 }
913
914 static void msi_free_colinfo( MSICOLUMNINFO *colinfo, UINT count )
915 {
916 UINT i;
917
918 for( i=0; i<count; i++ )
919 {
920 msi_free( colinfo[i].tablename );
921 msi_free( colinfo[i].colname );
922 msi_free( colinfo[i].hash_table );
923 }
924 }
925
926 static LPWSTR msi_makestring( const MSIDATABASE *db, UINT stringid)
927 {
928 return strdupW(msi_string_lookup_id( db->strings, stringid ));
929 }
930
931 static UINT read_table_int(BYTE *const *data, UINT row, UINT col, UINT bytes)
932 {
933 UINT ret = 0, i;
934
935 for (i = 0; i < bytes; i++)
936 ret += (data[row][col + i] << i * 8);
937
938 return ret;
939 }
940
941 static UINT get_tablecolumns( MSIDATABASE *db,
942 LPCWSTR szTableName, MSICOLUMNINFO *colinfo, UINT *sz)
943 {
944 UINT r, i, n=0, table_id, count, maxcount = *sz;
945 MSITABLE *table = NULL;
946
947 TRACE("%s\n", debugstr_w(szTableName));
948
949 /* first check if there is a default table with that name */
950 r = get_defaulttablecolumns( db, szTableName, colinfo, sz );
951 if( ( r == ERROR_SUCCESS ) && *sz )
952 return r;
953
954 r = get_table( db, szColumns, &table );
955 if( r != ERROR_SUCCESS )
956 {
957 ERR("couldn't load _Columns table\n");
958 return ERROR_FUNCTION_FAILED;
959 }
960
961 /* convert table and column names to IDs from the string table */
962 r = msi_string2idW( db->strings, szTableName, &table_id );
963 if( r != ERROR_SUCCESS )
964 {
965 WARN("Couldn't find id for %s\n", debugstr_w(szTableName));
966 return r;
967 }
968
969 TRACE("Table id is %d, row count is %d\n", table_id, table->row_count);
970
971 /* Note: _Columns table doesn't have non-persistent data */
972
973 /* if maxcount is non-zero, assume it's exactly right for this table */
974 memset( colinfo, 0, maxcount*sizeof(*colinfo) );
975 count = table->row_count;
976 for( i=0; i<count; i++ )
977 {
978 if( read_table_int(table->data, i, 0, db->bytes_per_strref) != table_id )
979 continue;
980 if( colinfo )
981 {
982 UINT id = read_table_int(table->data, i, table->colinfo[2].offset, db->bytes_per_strref);
983 UINT col = read_table_int(table->data, i, table->colinfo[1].offset, sizeof(USHORT)) - (1<<15);
984
985 /* check the column number is in range */
986 if (col<1 || col>maxcount)
987 {
988 ERR("column %d out of range\n", col);
989 continue;
990 }
991
992 /* check if this column was already set */
993 if (colinfo[ col - 1 ].number)
994 {
995 ERR("duplicate column %d\n", col);
996 continue;
997 }
998
999 colinfo[ col - 1 ].tablename = msi_makestring( db, table_id );
1000 colinfo[ col - 1 ].number = col;
1001 colinfo[ col - 1 ].colname = msi_makestring( db, id );
1002 colinfo[ col - 1 ].type = read_table_int(table->data, i,
1003 table->colinfo[3].offset,
1004 sizeof(USHORT)) - (1<<15);
1005 colinfo[ col - 1 ].offset = 0;
1006 colinfo[ col - 1 ].ref_count = 0;
1007 colinfo[ col - 1 ].hash_table = NULL;
1008 }
1009 n++;
1010 }
1011
1012 TRACE("%s has %d columns\n", debugstr_w(szTableName), n);
1013
1014 if (colinfo && n != maxcount)
1015 {
1016 ERR("missing column in table %s\n", debugstr_w(szTableName));
1017 msi_free_colinfo(colinfo, maxcount );
1018 return ERROR_FUNCTION_FAILED;
1019 }
1020
1021 table_calc_column_offsets( db, colinfo, n );
1022 *sz = n;
1023
1024 return ERROR_SUCCESS;
1025 }
1026
1027 static void msi_update_table_columns( MSIDATABASE *db, LPCWSTR name )
1028 {
1029 MSITABLE *table;
1030 UINT size, offset, old_count;
1031 UINT n;
1032
1033 table = find_cached_table( db, name );
1034 old_count = table->col_count;
1035 msi_free( table->colinfo );
1036 table_get_column_info( db, name, &table->colinfo, &table->col_count );
1037
1038 if (!table->col_count)
1039 return;
1040
1041 size = msi_table_get_row_size( db, table->colinfo, table->col_count );
1042 offset = table->colinfo[table->col_count - 1].offset;
1043
1044 for ( n = 0; n < table->row_count; n++ )
1045 {
1046 table->data[n] = msi_realloc( table->data[n], size );
1047 if (old_count < table->col_count)
1048 memset( &table->data[n][offset], 0, size - offset );
1049 }
1050 }
1051
1052 /* try to find the table name in the _Tables table */
1053 BOOL TABLE_Exists( MSIDATABASE *db, LPCWSTR name )
1054 {
1055 UINT r, table_id = 0, i, count;
1056 MSITABLE *table = NULL;
1057
1058 if( !lstrcmpW( name, szTables ) )
1059 return TRUE;
1060 if( !lstrcmpW( name, szColumns ) )
1061 return TRUE;
1062
1063 r = msi_string2idW( db->strings, name, &table_id );
1064 if( r != ERROR_SUCCESS )
1065 {
1066 TRACE("Couldn't find id for %s\n", debugstr_w(name));
1067 return FALSE;
1068 }
1069
1070 r = get_table( db, szTables, &table );
1071 if( r != ERROR_SUCCESS )
1072 {
1073 ERR("table %s not available\n", debugstr_w(szTables));
1074 return FALSE;
1075 }
1076
1077 count = table->row_count;
1078 for( i=0; i<count; i++ )
1079 if( table->data[ i ][ 0 ] == table_id )
1080 return TRUE;
1081
1082 count = table->nonpersistent_row_count;
1083 for( i=0; i<count; i++ )
1084 if( table->nonpersistent_data[ i ][ 0 ] == table_id )
1085 return TRUE;
1086
1087 return FALSE;
1088 }
1089
1090 /* below is the query interface to a table */
1091
1092 typedef struct tagMSITABLEVIEW
1093 {
1094 MSIVIEW view;
1095 MSIDATABASE *db;
1096 MSITABLE *table;
1097 MSICOLUMNINFO *columns;
1098 MSIORDERINFO *order;
1099 UINT num_cols;
1100 UINT row_size;
1101 WCHAR name[1];
1102 } MSITABLEVIEW;
1103
1104 static UINT TABLE_fetch_int( struct tagMSIVIEW *view, UINT row, UINT col, UINT *val )
1105 {
1106 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1107 UINT offset, n;
1108 BYTE **data;
1109
1110 if( !tv->table )
1111 return ERROR_INVALID_PARAMETER;
1112
1113 if( (col==0) || (col>tv->num_cols) )
1114 return ERROR_INVALID_PARAMETER;
1115
1116 /* how many rows are there ? */
1117 if( row >= tv->table->row_count + tv->table->nonpersistent_row_count )
1118 return ERROR_NO_MORE_ITEMS;
1119
1120 if( tv->columns[col-1].offset >= tv->row_size )
1121 {
1122 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1123 ERR("%p %p\n", tv, tv->columns );
1124 return ERROR_FUNCTION_FAILED;
1125 }
1126
1127 if (tv->order)
1128 row = tv->order->reorder[row];
1129
1130 if (row >= tv->table->row_count)
1131 {
1132 row -= tv->table->row_count;
1133 data = tv->table->nonpersistent_data;
1134 }
1135 else
1136 data = tv->table->data;
1137
1138 n = bytes_per_column( tv->db, &tv->columns[col-1] );
1139 if (n != 2 && n != 3 && n != 4)
1140 {
1141 ERR("oops! what is %d bytes per column?\n", n );
1142 return ERROR_FUNCTION_FAILED;
1143 }
1144
1145 offset = tv->columns[col-1].offset;
1146 *val = read_table_int(data, row, offset, n);
1147
1148 /* TRACE("Data [%d][%d] = %d\n", row, col, *val ); */
1149
1150 return ERROR_SUCCESS;
1151 }
1152
1153 /*
1154 * We need a special case for streams, as we need to reference column with
1155 * the name of the stream in the same table, and the table name
1156 * which may not be available at higher levels of the query
1157 */
1158 static UINT TABLE_fetch_stream( struct tagMSIVIEW *view, UINT row, UINT col, IStream **stm )
1159 {
1160 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1161 UINT ival = 0, refcol = 0, r;
1162 LPCWSTR sval;
1163 LPWSTR full_name;
1164 DWORD len;
1165 static const WCHAR szDot[] = { '.', 0 };
1166 WCHAR number[0x20];
1167
1168 if( !view->ops->fetch_int )
1169 return ERROR_INVALID_PARAMETER;
1170
1171 /*
1172 * The column marked with the type stream data seems to have a single number
1173 * which references the column containing the name of the stream data
1174 *
1175 * Fetch the column to reference first.
1176 */
1177 r = view->ops->fetch_int( view, row, col, &ival );
1178 if( r != ERROR_SUCCESS )
1179 return r;
1180
1181 /* check the column value is in range */
1182 if (ival > tv->num_cols || ival == col)
1183 {
1184 ERR("bad column ref (%u) for stream\n", ival);
1185 return ERROR_FUNCTION_FAILED;
1186 }
1187
1188 if ( tv->columns[ival - 1].type & MSITYPE_STRING )
1189 {
1190 /* now get the column with the name of the stream */
1191 r = view->ops->fetch_int( view, row, ival, &refcol );
1192 if ( r != ERROR_SUCCESS )
1193 return r;
1194
1195 /* lookup the string value from the string table */
1196 sval = msi_string_lookup_id( tv->db->strings, refcol );
1197 if ( !sval )
1198 return ERROR_INVALID_PARAMETER;
1199 }
1200 else
1201 {
1202 static const WCHAR fmt[] = { '%','d',0 };
1203 sprintfW( number, fmt, ival );
1204 sval = number;
1205 }
1206
1207 len = lstrlenW( tv->name ) + 2 + lstrlenW( sval );
1208 full_name = msi_alloc( len*sizeof(WCHAR) );
1209 lstrcpyW( full_name, tv->name );
1210 lstrcatW( full_name, szDot );
1211 lstrcatW( full_name, sval );
1212
1213 r = db_get_raw_stream( tv->db, full_name, stm );
1214 if( r )
1215 ERR("fetching stream %s, error = %d\n",debugstr_w(full_name), r);
1216 msi_free( full_name );
1217
1218 return r;
1219 }
1220
1221 static UINT TABLE_set_int( MSITABLEVIEW *tv, UINT row, UINT col, UINT val )
1222 {
1223 UINT offset, n, i;
1224 BYTE **data;
1225
1226 if( !tv->table )
1227 return ERROR_INVALID_PARAMETER;
1228
1229 if( (col==0) || (col>tv->num_cols) )
1230 return ERROR_INVALID_PARAMETER;
1231
1232 if( row >= tv->table->row_count + tv->table->nonpersistent_row_count )
1233 return ERROR_INVALID_PARAMETER;
1234
1235 if( tv->columns[col-1].offset >= tv->row_size )
1236 {
1237 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1238 ERR("%p %p\n", tv, tv->columns );
1239 return ERROR_FUNCTION_FAILED;
1240 }
1241
1242 msi_free( tv->columns[col-1].hash_table );
1243 tv->columns[col-1].hash_table = NULL;
1244
1245 if (row >= tv->table->row_count)
1246 {
1247 row -= tv->table->row_count;
1248 data = tv->table->nonpersistent_data;
1249 }
1250 else
1251 data = tv->table->data;
1252
1253 n = bytes_per_column( tv->db, &tv->columns[col-1] );
1254 if ( n != 2 && n != 3 && n != 4 )
1255 {
1256 ERR("oops! what is %d bytes per column?\n", n );
1257 return ERROR_FUNCTION_FAILED;
1258 }
1259
1260 offset = tv->columns[col-1].offset;
1261 for ( i = 0; i < n; i++ )
1262 data[row][offset + i] = (val >> i * 8) & 0xff;
1263
1264 return ERROR_SUCCESS;
1265 }
1266
1267 static UINT TABLE_get_row( struct tagMSIVIEW *view, UINT row, MSIRECORD **rec )
1268 {
1269 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1270
1271 if (!tv->table)
1272 return ERROR_INVALID_PARAMETER;
1273
1274 if (tv->order)
1275 row = tv->order->reorder[row];
1276
1277 return msi_view_get_row(tv->db, view, row, rec);
1278 }
1279
1280 static UINT TABLE_set_row( struct tagMSIVIEW *view, UINT row, MSIRECORD *rec, UINT mask )
1281 {
1282 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1283 UINT i, val, r = ERROR_SUCCESS;
1284
1285 if ( !tv->table )
1286 return ERROR_INVALID_PARAMETER;
1287
1288 /* test if any of the mask bits are invalid */
1289 if ( mask >= (1<<tv->num_cols) )
1290 return ERROR_INVALID_PARAMETER;
1291
1292 for ( i = 0; i < tv->num_cols; i++ )
1293 {
1294 BOOL persistent;
1295
1296 /* only update the fields specified in the mask */
1297 if ( !(mask&(1<<i)) )
1298 continue;
1299
1300 /* if row >= tv->table->row_count then it is a non-persistent row */
1301 persistent = tv->table->persistent && (row < tv->table->row_count);
1302 /* FIXME: should we allow updating keys? */
1303
1304 val = 0;
1305 if ( !MSI_RecordIsNull( rec, i + 1 ) )
1306 {
1307 if ( MSITYPE_IS_BINARY(tv->columns[ i ].type) )
1308 {
1309 val = 1; /* refers to the first key column */
1310 }
1311 else if ( tv->columns[i].type & MSITYPE_STRING )
1312 {
1313 LPCWSTR sval = MSI_RecordGetString( rec, i + 1 );
1314 UINT ival, x;
1315
1316 r = msi_string2idW(tv->db->strings, sval, &ival);
1317 if (r == ERROR_SUCCESS)
1318 {
1319 TABLE_fetch_int(&tv->view, row, i + 1, &x);
1320 if (ival == x)
1321 continue;
1322 }
1323
1324 val = msi_addstringW( tv->db->strings, 0, sval, -1, 1,
1325 persistent ? StringPersistent : StringNonPersistent );
1326 }
1327 else if ( 2 == bytes_per_column( tv->db, &tv->columns[ i ] ) )
1328 {
1329 val = 0x8000 + MSI_RecordGetInteger( rec, i + 1 );
1330 if ( val & 0xffff0000 )
1331 {
1332 ERR("field %u value %d out of range\n", i+1, val - 0x8000 );
1333 return ERROR_FUNCTION_FAILED;
1334 }
1335 }
1336 else
1337 {
1338 INT ival = MSI_RecordGetInteger( rec, i + 1 );
1339 val = ival ^ 0x80000000;
1340 }
1341 }
1342
1343 r = TABLE_set_int( tv, row, i+1, val );
1344 if ( r != ERROR_SUCCESS )
1345 break;
1346 }
1347 return r;
1348 }
1349
1350 static UINT table_create_new_row( struct tagMSIVIEW *view, UINT *num, BOOL temporary )
1351 {
1352 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1353 BYTE **p, *row;
1354 UINT sz;
1355 BYTE ***data_ptr;
1356 UINT *row_count;
1357
1358 TRACE("%p %s\n", view, temporary ? "TRUE" : "FALSE");
1359
1360 if( !tv->table )
1361 return ERROR_INVALID_PARAMETER;
1362
1363 row = msi_alloc_zero( tv->row_size );
1364 if( !row )
1365 return ERROR_NOT_ENOUGH_MEMORY;
1366
1367 if( temporary )
1368 {
1369 row_count = &tv->table->nonpersistent_row_count;
1370 data_ptr = &tv->table->nonpersistent_data;
1371 *num = tv->table->row_count + tv->table->nonpersistent_row_count;
1372 }
1373 else
1374 {
1375 row_count = &tv->table->row_count;
1376 data_ptr = &tv->table->data;
1377 *num = tv->table->row_count;
1378 }
1379
1380 sz = (*row_count + 1) * sizeof (BYTE*);
1381 if( *data_ptr )
1382 p = msi_realloc( *data_ptr, sz );
1383 else
1384 p = msi_alloc( sz );
1385 if( !p )
1386 {
1387 msi_free( row );
1388 return ERROR_NOT_ENOUGH_MEMORY;
1389 }
1390
1391 *data_ptr = p;
1392 (*data_ptr)[*row_count] = row;
1393 (*row_count)++;
1394
1395 return ERROR_SUCCESS;
1396 }
1397
1398 static UINT TABLE_execute( struct tagMSIVIEW *view, MSIRECORD *record )
1399 {
1400 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1401
1402 TRACE("%p %p\n", tv, record);
1403
1404 TRACE("There are %d columns\n", tv->num_cols );
1405
1406 return ERROR_SUCCESS;
1407 }
1408
1409 static UINT TABLE_close( struct tagMSIVIEW *view )
1410 {
1411 TRACE("%p\n", view );
1412
1413 return ERROR_SUCCESS;
1414 }
1415
1416 static UINT TABLE_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols)
1417 {
1418 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1419
1420 TRACE("%p %p %p\n", view, rows, cols );
1421
1422 if( cols )
1423 *cols = tv->num_cols;
1424 if( rows )
1425 {
1426 if( !tv->table )
1427 return ERROR_INVALID_PARAMETER;
1428 *rows = tv->table->row_count + tv->table->nonpersistent_row_count;
1429 }
1430
1431 return ERROR_SUCCESS;
1432 }
1433
1434 static UINT TABLE_get_column_info( struct tagMSIVIEW *view,
1435 UINT n, LPWSTR *name, UINT *type )
1436 {
1437 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1438
1439 TRACE("%p %d %p %p\n", tv, n, name, type );
1440
1441 if( ( n == 0 ) || ( n > tv->num_cols ) )
1442 return ERROR_INVALID_PARAMETER;
1443
1444 if( name )
1445 {
1446 *name = strdupW( tv->columns[n-1].colname );
1447 if( !*name )
1448 return ERROR_FUNCTION_FAILED;
1449 }
1450 if( type )
1451 *type = tv->columns[n-1].type;
1452
1453 return ERROR_SUCCESS;
1454 }
1455
1456 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row );
1457
1458 static UINT table_validate_new( MSITABLEVIEW *tv, MSIRECORD *rec )
1459 {
1460 UINT r, row, i;
1461
1462 /* check there's no null values where they're not allowed */
1463 for( i = 0; i < tv->num_cols; i++ )
1464 {
1465 if ( tv->columns[i].type & MSITYPE_NULLABLE )
1466 continue;
1467
1468 if ( MSITYPE_IS_BINARY(tv->columns[i].type) )
1469 TRACE("skipping binary column\n");
1470 else if ( tv->columns[i].type & MSITYPE_STRING )
1471 {
1472 LPCWSTR str;
1473
1474 str = MSI_RecordGetString( rec, i+1 );
1475 if (str == NULL || str[0] == 0)
1476 return ERROR_INVALID_DATA;
1477 }
1478 else
1479 {
1480 UINT n;
1481
1482 n = MSI_RecordGetInteger( rec, i+1 );
1483 if (n == MSI_NULL_INTEGER)
1484 return ERROR_INVALID_DATA;
1485 }
1486 }
1487
1488 /* check there's no duplicate keys */
1489 r = msi_table_find_row( tv, rec, &row );
1490 if (r == ERROR_SUCCESS)
1491 return ERROR_FUNCTION_FAILED;
1492
1493 return ERROR_SUCCESS;
1494 }
1495
1496 static UINT TABLE_insert_row( struct tagMSIVIEW *view, MSIRECORD *rec, BOOL temporary )
1497 {
1498 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1499 UINT r, row = -1;
1500
1501 TRACE("%p %p %s\n", tv, rec, temporary ? "TRUE" : "FALSE" );
1502
1503 /* check that the key is unique - can we find a matching row? */
1504 r = table_validate_new( tv, rec );
1505 if( r != ERROR_SUCCESS )
1506 return ERROR_FUNCTION_FAILED;
1507
1508 r = table_create_new_row( view, &row, temporary );
1509 TRACE("insert_row returned %08x\n", r);
1510 if( r != ERROR_SUCCESS )
1511 return r;
1512
1513 return TABLE_set_row( view, row, rec, (1<<tv->num_cols) - 1 );
1514 }
1515
1516 static UINT TABLE_delete_row( struct tagMSIVIEW *view, UINT row )
1517 {
1518 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1519 UINT r, num_rows, num_cols, i;
1520 BYTE **data;
1521
1522 TRACE("%p %d\n", tv, row);
1523
1524 if ( !tv->table )
1525 return ERROR_INVALID_PARAMETER;
1526
1527 r = TABLE_get_dimensions( view, &num_rows, &num_cols );
1528 if ( r != ERROR_SUCCESS )
1529 return r;
1530
1531 if ( row >= num_rows )
1532 return ERROR_FUNCTION_FAILED;
1533
1534 if ( row < tv->table->row_count )
1535 {
1536 num_rows = tv->table->row_count;
1537 tv->table->row_count--;
1538 data = tv->table->data;
1539 }
1540 else
1541 {
1542 num_rows = tv->table->nonpersistent_row_count;
1543 row -= tv->table->row_count;
1544 tv->table->nonpersistent_row_count--;
1545 data = tv->table->nonpersistent_data;
1546 }
1547
1548 /* reset the hash tables */
1549 for (i = 0; i < tv->num_cols; i++)
1550 {
1551 msi_free( tv->columns[i].hash_table );
1552 tv->columns[i].hash_table = NULL;
1553 }
1554
1555 if ( row == num_rows - 1 )
1556 return ERROR_SUCCESS;
1557
1558 for (i = row + 1; i < num_rows; i++)
1559 memcpy(data[i - 1], data[i], tv->row_size);
1560
1561 return ERROR_SUCCESS;
1562 }
1563
1564 static UINT msi_table_update(struct tagMSIVIEW *view, MSIRECORD *rec, UINT row)
1565 {
1566 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1567 UINT r, new_row;
1568
1569 /* FIXME: MsiViewFetch should set rec index 0 to some ID that
1570 * sets the fetched record apart from other records
1571 */
1572
1573 if (!tv->table)
1574 return ERROR_INVALID_PARAMETER;
1575
1576 r = msi_table_find_row(tv, rec, &new_row);
1577 if (r != ERROR_SUCCESS)
1578 {
1579 ERR("can't find row to modify\n");
1580 return ERROR_FUNCTION_FAILED;
1581 }
1582
1583 /* the row cannot be changed */
1584 if (row != new_row + 1)
1585 return ERROR_FUNCTION_FAILED;
1586
1587 return TABLE_set_row(view, new_row, rec, (1 << tv->num_cols) - 1);
1588 }
1589
1590 static UINT modify_delete_row( struct tagMSIVIEW *view, MSIRECORD *rec )
1591 {
1592 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1593 UINT row, r;
1594
1595 r = msi_table_find_row(tv, rec, &row);
1596 if (r != ERROR_SUCCESS)
1597 return r;
1598
1599 return TABLE_delete_row(view, row);
1600 }
1601
1602 static UINT msi_refresh_record( struct tagMSIVIEW *view, MSIRECORD *rec, UINT row )
1603 {
1604 MSIRECORD *curr;
1605 UINT r, i, count;
1606
1607 r = TABLE_get_row(view, row - 1, &curr);
1608 if (r != ERROR_SUCCESS)
1609 return r;
1610
1611 count = MSI_RecordGetFieldCount(rec);
1612 for (i = 0; i < count; i++)
1613 MSI_RecordCopyField(curr, i + 1, rec, i + 1);
1614
1615 msiobj_release(&curr->hdr);
1616 return ERROR_SUCCESS;
1617 }
1618
1619 static UINT TABLE_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode,
1620 MSIRECORD *rec, UINT row)
1621 {
1622 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1623 UINT r;
1624
1625 TRACE("%p %d %p\n", view, eModifyMode, rec );
1626
1627 switch (eModifyMode)
1628 {
1629 case MSIMODIFY_DELETE:
1630 r = modify_delete_row( view, rec );
1631 break;
1632 case MSIMODIFY_VALIDATE_NEW:
1633 r = table_validate_new( tv, rec );
1634 break;
1635
1636 case MSIMODIFY_INSERT:
1637 r = table_validate_new( tv, rec );
1638 if (r != ERROR_SUCCESS)
1639 break;
1640 r = TABLE_insert_row( view, rec, FALSE );
1641 break;
1642
1643 case MSIMODIFY_INSERT_TEMPORARY:
1644 r = table_validate_new( tv, rec );
1645 if (r != ERROR_SUCCESS)
1646 break;
1647 r = TABLE_insert_row( view, rec, TRUE );
1648 break;
1649
1650 case MSIMODIFY_REFRESH:
1651 r = msi_refresh_record( view, rec, row );
1652 break;
1653
1654 case MSIMODIFY_UPDATE:
1655 r = msi_table_update( view, rec, row );
1656 break;
1657
1658 case MSIMODIFY_ASSIGN:
1659 case MSIMODIFY_REPLACE:
1660 case MSIMODIFY_MERGE:
1661 case MSIMODIFY_VALIDATE:
1662 case MSIMODIFY_VALIDATE_FIELD:
1663 case MSIMODIFY_VALIDATE_DELETE:
1664 FIXME("%p %d %p - mode not implemented\n", view, eModifyMode, rec );
1665 r = ERROR_CALL_NOT_IMPLEMENTED;
1666 break;
1667
1668 default:
1669 r = ERROR_INVALID_DATA;
1670 }
1671
1672 return r;
1673 }
1674
1675 static UINT TABLE_delete( struct tagMSIVIEW *view )
1676 {
1677 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1678
1679 TRACE("%p\n", view );
1680
1681 tv->table = NULL;
1682 tv->columns = NULL;
1683
1684 if (tv->order)
1685 {
1686 msi_free( tv->order->reorder );
1687 msi_free( tv->order );
1688 tv->order = NULL;
1689 }
1690
1691 msi_free( tv );
1692
1693 return ERROR_SUCCESS;
1694 }
1695
1696 static UINT TABLE_find_matching_rows( struct tagMSIVIEW *view, UINT col,
1697 UINT val, UINT *row, MSIITERHANDLE *handle )
1698 {
1699 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1700 const MSICOLUMNHASHENTRY *entry;
1701
1702 TRACE("%p, %d, %u, %p\n", view, col, val, *handle);
1703
1704 if( !tv->table )
1705 return ERROR_INVALID_PARAMETER;
1706
1707 if( (col==0) || (col > tv->num_cols) )
1708 return ERROR_INVALID_PARAMETER;
1709
1710 if( !tv->columns[col-1].hash_table )
1711 {
1712 UINT i;
1713 UINT num_rows = tv->table->row_count + tv->table->nonpersistent_row_count;
1714 MSICOLUMNHASHENTRY **hash_table;
1715 MSICOLUMNHASHENTRY *new_entry;
1716
1717 if( tv->columns[col-1].offset >= tv->row_size )
1718 {
1719 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1720 ERR("%p %p\n", tv, tv->columns );
1721 return ERROR_FUNCTION_FAILED;
1722 }
1723
1724 /* allocate contiguous memory for the table and its entries so we
1725 * don't have to do an expensive cleanup */
1726 hash_table = msi_alloc(MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*) +
1727 num_rows * sizeof(MSICOLUMNHASHENTRY));
1728 if (!hash_table)
1729 return ERROR_OUTOFMEMORY;
1730
1731 memset(hash_table, 0, MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*));
1732 tv->columns[col-1].hash_table = hash_table;
1733
1734 new_entry = (MSICOLUMNHASHENTRY *)(hash_table + MSITABLE_HASH_TABLE_SIZE);
1735
1736 for (i = 0; i < num_rows; i++, new_entry++)
1737 {
1738 UINT row_value;
1739
1740 if (view->ops->fetch_int( view, i, col, &row_value ) != ERROR_SUCCESS)
1741 continue;
1742
1743 new_entry->next = NULL;
1744 new_entry->value = row_value;
1745 new_entry->row = i;
1746 if (hash_table[row_value % MSITABLE_HASH_TABLE_SIZE])
1747 {
1748 MSICOLUMNHASHENTRY *prev_entry = hash_table[row_value % MSITABLE_HASH_TABLE_SIZE];
1749 while (prev_entry->next)
1750 prev_entry = prev_entry->next;
1751 prev_entry->next = new_entry;
1752 }
1753 else
1754 hash_table[row_value % MSITABLE_HASH_TABLE_SIZE] = new_entry;
1755 }
1756 }
1757
1758 if( !*handle )
1759 entry = tv->columns[col-1].hash_table[val % MSITABLE_HASH_TABLE_SIZE];
1760 else
1761 entry = (*handle)->next;
1762
1763 while (entry && entry->value != val)
1764 entry = entry->next;
1765
1766 *handle = entry;
1767 if (!entry)
1768 return ERROR_NO_MORE_ITEMS;
1769
1770 *row = entry->row;
1771
1772 return ERROR_SUCCESS;
1773 }
1774
1775 static UINT TABLE_add_ref(struct tagMSIVIEW *view)
1776 {
1777 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1778 UINT i;
1779
1780 TRACE("%p %d\n", view, tv->table->ref_count);
1781
1782 for (i = 0; i < tv->table->col_count; i++)
1783 {
1784 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
1785 InterlockedIncrement(&tv->table->colinfo[i].ref_count);
1786 }
1787
1788 return InterlockedIncrement(&tv->table->ref_count);
1789 }
1790
1791 static UINT TABLE_remove_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number)
1792 {
1793 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1794 MSIRECORD *rec = NULL;
1795 MSIVIEW *columns = NULL;
1796 UINT row, r;
1797
1798 rec = MSI_CreateRecord(2);
1799 if (!rec)
1800 return ERROR_OUTOFMEMORY;
1801
1802 MSI_RecordSetStringW(rec, 1, table);
1803 MSI_RecordSetInteger(rec, 2, number);
1804
1805 r = TABLE_CreateView(tv->db, szColumns, &columns);
1806 if (r != ERROR_SUCCESS)
1807 return r;
1808
1809 r = msi_table_find_row((MSITABLEVIEW *)columns, rec, &row);
1810 if (r != ERROR_SUCCESS)
1811 goto done;
1812
1813 r = TABLE_delete_row(columns, row);
1814 if (r != ERROR_SUCCESS)
1815 goto done;
1816
1817 msi_update_table_columns(tv->db, table);
1818
1819 done:
1820 msiobj_release(&rec->hdr);
1821 if (columns) columns->ops->delete(columns);
1822 return r;
1823 }
1824
1825 static UINT TABLE_release(struct tagMSIVIEW *view)
1826 {
1827 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1828 INT ref = tv->table->ref_count;
1829 UINT i, r;
1830
1831 TRACE("%p %d\n", view, ref);
1832
1833 for (i = 0; i < tv->table->col_count; i++)
1834 {
1835 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
1836 {
1837 ref = InterlockedDecrement(&tv->table->colinfo[i].ref_count);
1838 if (ref == 0)
1839 {
1840 r = TABLE_remove_column(view, tv->table->colinfo[i].tablename,
1841 tv->table->colinfo[i].number);
1842 if (r != ERROR_SUCCESS)
1843 break;
1844 }
1845 }
1846 }
1847
1848 ref = InterlockedDecrement(&tv->table->ref_count);
1849 if (ref == 0)
1850 {
1851 if (!tv->table->row_count)
1852 {
1853 list_remove(&tv->table->entry);
1854 free_table(tv->table);
1855 TABLE_delete(view);
1856 }
1857 }
1858
1859 return ref;
1860 }
1861
1862 static UINT TABLE_add_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number,
1863 LPCWSTR column, UINT type, BOOL hold)
1864 {
1865 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1866 MSITABLE *msitable;
1867 MSIRECORD *rec;
1868 UINT r, i;
1869
1870 rec = MSI_CreateRecord(4);
1871 if (!rec)
1872 return ERROR_OUTOFMEMORY;
1873
1874 MSI_RecordSetStringW(rec, 1, table);
1875 MSI_RecordSetInteger(rec, 2, number);
1876 MSI_RecordSetStringW(rec, 3, column);
1877 MSI_RecordSetInteger(rec, 4, type);
1878
1879 r = TABLE_insert_row(&tv->view, rec, FALSE);
1880 if (r != ERROR_SUCCESS)
1881 goto done;
1882
1883 msi_update_table_columns(tv->db, table);
1884
1885 if (!hold)
1886 goto done;
1887
1888 msitable = find_cached_table(tv->db, table);
1889 for (i = 0; i < msitable->col_count; i++)
1890 {
1891 if (!lstrcmpW(msitable->colinfo[i].colname, column))
1892 {
1893 InterlockedIncrement(&msitable->colinfo[i].ref_count);
1894 break;
1895 }
1896 }
1897
1898 done:
1899 msiobj_release(&rec->hdr);
1900 return r;
1901 }
1902
1903 static UINT order_add_column(struct tagMSIVIEW *view, MSIORDERINFO *order, LPCWSTR name)
1904 {
1905 UINT n, r, count;
1906
1907 r = TABLE_get_dimensions(view, NULL, &count);
1908 if (r != ERROR_SUCCESS)
1909 return r;
1910
1911 if (order->num_cols >= count)
1912 return ERROR_FUNCTION_FAILED;
1913
1914 r = VIEW_find_column(view, name, &n);
1915 if (r != ERROR_SUCCESS)
1916 return r;
1917
1918 order->cols[order->num_cols] = n;
1919 TRACE("Ordering by column %s (%d)\n", debugstr_w(name), n);
1920
1921 order->num_cols++;
1922
1923 return ERROR_SUCCESS;
1924 }
1925
1926 static UINT order_compare(struct tagMSIVIEW *view, MSIORDERINFO *order,
1927 UINT a, UINT b, UINT *swap)
1928 {
1929 UINT r, i, a_val = 0, b_val = 0;
1930
1931 *swap = 0;
1932 for (i = 0; i < order->num_cols; i++)
1933 {
1934 r = TABLE_fetch_int(view, a, order->cols[i], &a_val);
1935 if (r != ERROR_SUCCESS)
1936 return r;
1937
1938 r = TABLE_fetch_int(view, b, order->cols[i], &b_val);
1939 if (r != ERROR_SUCCESS)
1940 return r;
1941
1942 if (a_val != b_val)
1943 {
1944 if (a_val > b_val)
1945 *swap = 1;
1946 break;
1947 }
1948 }
1949
1950 return ERROR_SUCCESS;
1951 }
1952
1953 static UINT order_mergesort(struct tagMSIVIEW *view, MSIORDERINFO *order,
1954 UINT left, UINT right)
1955 {
1956 UINT r, i, j, temp;
1957 UINT swap = 0, center = (left + right) / 2;
1958 UINT *array = order->reorder;
1959
1960 if (left == right)
1961 return ERROR_SUCCESS;
1962
1963 /* sort the left half */
1964 r = order_mergesort(view, order, left, center);
1965 if (r != ERROR_SUCCESS)
1966 return r;
1967
1968 /* sort the right half */
1969 r = order_mergesort(view, order, center + 1, right);
1970 if (r != ERROR_SUCCESS)
1971 return r;
1972
1973 for (i = left, j = center + 1; (i <= center) && (j <= right); i++)
1974 {
1975 r = order_compare(view, order, array[i], array[j], &swap);
1976 if (r != ERROR_SUCCESS)
1977 return r;
1978
1979 if (swap)
1980 {
1981 temp = array[j];
1982 memmove(&array[i + 1], &array[i], (j - i) * sizeof(UINT));
1983 array[i] = temp;
1984 j++;
1985 center++;
1986 }
1987 }
1988
1989 return ERROR_SUCCESS;
1990 }
1991
1992 static UINT order_verify(struct tagMSIVIEW *view, MSIORDERINFO *order, UINT num_rows)
1993 {
1994 UINT i, swap, r;
1995
1996 for (i = 1; i < num_rows; i++)
1997 {
1998 r = order_compare(view, order, order->reorder[i - 1],
1999 order->reorder[i], &swap);
2000 if (r != ERROR_SUCCESS)
2001 return r;
2002
2003 if (!swap)
2004 continue;
2005
2006 ERR("Bad order! %d\n", i);
2007 return ERROR_FUNCTION_FAILED;
2008 }
2009
2010 return ERROR_SUCCESS;
2011 }
2012
2013 static UINT TABLE_sort(struct tagMSIVIEW *view, column_info *columns)
2014 {
2015 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
2016 MSIORDERINFO *order;
2017 column_info *ptr;
2018 UINT r, i;
2019 UINT rows, cols;
2020
2021 TRACE("sorting table %s\n", debugstr_w(tv->name));
2022
2023 r = TABLE_get_dimensions(view, &rows, &cols);
2024 if (r != ERROR_SUCCESS)
2025 return r;
2026
2027 if (rows == 0)
2028 return ERROR_SUCCESS;
2029
2030 order = msi_alloc_zero(sizeof(MSIORDERINFO) + sizeof(UINT) * cols);
2031 if (!order)
2032 return ERROR_OUTOFMEMORY;
2033
2034 for (ptr = columns; ptr; ptr = ptr->next)
2035 order_add_column(view, order, ptr->column);
2036
2037 order->reorder = msi_alloc(rows * sizeof(UINT));
2038 if (!order->reorder)
2039 return ERROR_OUTOFMEMORY;
2040
2041 for (i = 0; i < rows; i++)
2042 order->reorder[i] = i;
2043
2044 r = order_mergesort(view, order, 0, rows - 1);
2045 if (r != ERROR_SUCCESS)
2046 return r;
2047
2048 r = order_verify(view, order, rows);
2049 if (r != ERROR_SUCCESS)
2050 return r;
2051
2052 tv->order = order;
2053
2054 return ERROR_SUCCESS;
2055 }
2056
2057 static UINT TABLE_drop(struct tagMSIVIEW *view)
2058 {
2059 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
2060 MSIVIEW *tables = NULL;
2061 MSIRECORD *rec = NULL;
2062 UINT r, row;
2063 INT i;
2064
2065 TRACE("dropping table %s\n", debugstr_w(tv->name));
2066
2067 for (i = tv->table->col_count - 1; i >= 0; i--)
2068 {
2069 r = TABLE_remove_column(view, tv->table->colinfo[i].tablename,
2070 tv->table->colinfo[i].number);
2071 if (r != ERROR_SUCCESS)
2072 return r;
2073 }
2074
2075 rec = MSI_CreateRecord(1);
2076 if (!rec)
2077 return ERROR_OUTOFMEMORY;
2078
2079 MSI_RecordSetStringW(rec, 1, tv->name);
2080
2081 r = TABLE_CreateView(tv->db, szTables, &tables);
2082 if (r != ERROR_SUCCESS)
2083 return r;
2084
2085 r = msi_table_find_row((MSITABLEVIEW *)tables, rec, &row);
2086 if (r != ERROR_SUCCESS)
2087 goto done;
2088
2089 r = TABLE_delete_row(tables, row);
2090 if (r != ERROR_SUCCESS)
2091 goto done;
2092
2093 list_remove(&tv->table->entry);
2094 free_table(tv->table);
2095 TABLE_delete(view);
2096
2097 done:
2098 msiobj_release(&rec->hdr);
2099 tables->ops->delete(tables);
2100
2101 return r;
2102 }
2103
2104 static const MSIVIEWOPS table_ops =
2105 {
2106 TABLE_fetch_int,
2107 TABLE_fetch_stream,
2108 TABLE_get_row,
2109 TABLE_set_row,
2110 TABLE_insert_row,
2111 TABLE_delete_row,
2112 TABLE_execute,
2113 TABLE_close,
2114 TABLE_get_dimensions,
2115 TABLE_get_column_info,
2116 TABLE_modify,
2117 TABLE_delete,
2118 TABLE_find_matching_rows,
2119 TABLE_add_ref,
2120 TABLE_release,
2121 TABLE_add_column,
2122 TABLE_remove_column,
2123 TABLE_sort,
2124 TABLE_drop,
2125 };
2126
2127 UINT TABLE_CreateView( MSIDATABASE *db, LPCWSTR name, MSIVIEW **view )
2128 {
2129 MSITABLEVIEW *tv ;
2130 UINT r, sz;
2131
2132 static const WCHAR Streams[] = {'_','S','t','r','e','a','m','s',0};
2133 static const WCHAR Storages[] = {'_','S','t','o','r','a','g','e','s',0};
2134
2135 TRACE("%p %s %p\n", db, debugstr_w(name), view );
2136
2137 if ( !lstrcmpW( name, Streams ) )
2138 return STREAMS_CreateView( db, view );
2139 else if ( !lstrcmpW( name, Storages ) )
2140 return STORAGES_CreateView( db, view );
2141
2142 sz = sizeof *tv + lstrlenW(name)*sizeof name[0] ;
2143 tv = msi_alloc_zero( sz );
2144 if( !tv )
2145 return ERROR_FUNCTION_FAILED;
2146
2147 r = get_table( db, name, &tv->table );
2148 if( r != ERROR_SUCCESS )
2149 {
2150 msi_free( tv );
2151 WARN("table not found\n");
2152 return r;
2153 }
2154
2155 TRACE("table %p found with %d columns\n", tv->table, tv->table->col_count);
2156
2157 /* fill the structure */
2158 tv->view.ops = &table_ops;
2159 tv->db = db;
2160 tv->columns = tv->table->colinfo;
2161 tv->num_cols = tv->table->col_count;
2162 tv->row_size = msi_table_get_row_size( db, tv->table->colinfo, tv->table->col_count );
2163
2164 TRACE("%s one row is %d bytes\n", debugstr_w(name), tv->row_size );
2165
2166 *view = (MSIVIEW*) tv;
2167 lstrcpyW( tv->name, name );
2168
2169 return ERROR_SUCCESS;
2170 }
2171
2172 UINT MSI_CommitTables( MSIDATABASE *db )
2173 {
2174 UINT r;
2175 MSITABLE *table = NULL;
2176
2177 TRACE("%p\n",db);
2178
2179 r = msi_save_string_table( db->strings, db->storage );
2180 if( r != ERROR_SUCCESS )
2181 {
2182 WARN("failed to save string table r=%08x\n",r);
2183 return r;
2184 }
2185
2186 LIST_FOR_EACH_ENTRY( table, &db->tables, MSITABLE, entry )
2187 {
2188 r = save_table( db, table );
2189 if( r != ERROR_SUCCESS )
2190 {
2191 WARN("failed to save table %s (r=%08x)\n",
2192 debugstr_w(table->name), r);
2193 return r;
2194 }
2195 }
2196
2197 /* force everything to reload next time */
2198 free_cached_tables( db );
2199
2200 return ERROR_SUCCESS;
2201 }
2202
2203 MSICONDITION MSI_DatabaseIsTablePersistent( MSIDATABASE *db, LPCWSTR table )
2204 {
2205 MSITABLE *t;
2206 UINT r;
2207
2208 TRACE("%p %s\n", db, debugstr_w(table));
2209
2210 if (!table)
2211 return MSICONDITION_ERROR;
2212
2213 r = get_table( db, table, &t );
2214 if (r != ERROR_SUCCESS)
2215 return MSICONDITION_NONE;
2216
2217 if (t->persistent)
2218 return MSICONDITION_TRUE;
2219 else
2220 return MSICONDITION_FALSE;
2221 }
2222
2223 static UINT read_raw_int(const BYTE *data, UINT col, UINT bytes)
2224 {
2225 UINT ret = 0, i;
2226
2227 for (i = 0; i < bytes; i++)
2228 ret += (data[col + i] << i * 8);
2229
2230 return ret;
2231 }
2232
2233 static MSIRECORD *msi_get_transform_record( const MSITABLEVIEW *tv, const string_table *st,
2234 const BYTE *rawdata, UINT bytes_per_strref )
2235 {
2236 UINT i, val, ofs = 0;
2237 USHORT mask;
2238 MSICOLUMNINFO *columns = tv->columns;
2239 MSIRECORD *rec;
2240
2241 mask = rawdata[0] | (rawdata[1] << 8);
2242 rawdata += 2;
2243
2244 rec = MSI_CreateRecord( tv->num_cols );
2245 if( !rec )
2246 return rec;
2247
2248 TRACE("row ->\n");
2249 for( i=0; i<tv->num_cols; i++ )
2250 {
2251 if ( (mask&1) && (i>=(mask>>8)) )
2252 break;
2253 /* all keys must be present */
2254 if ( (~mask&1) && (~columns[i].type & MSITYPE_KEY) && ((1<<i) & ~mask) )
2255 continue;
2256
2257 if( (columns[i].type & MSITYPE_STRING) &&
2258 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2259 {
2260 LPCWSTR sval;
2261
2262 val = read_raw_int(rawdata, ofs, bytes_per_strref);
2263 sval = msi_string_lookup_id( st, val );
2264 MSI_RecordSetStringW( rec, i+1, sval );
2265 TRACE(" field %d [%s]\n", i+1, debugstr_w(sval));
2266 ofs += bytes_per_strref;
2267 }
2268 else
2269 {
2270 UINT n = bytes_per_column( tv->db, &columns[i] );
2271 switch( n )
2272 {
2273 case 2:
2274 val = read_raw_int(rawdata, ofs, n);
2275 if (val)
2276 MSI_RecordSetInteger( rec, i+1, val^0x8000 );
2277 TRACE(" field %d [0x%04x]\n", i+1, val );
2278 break;
2279 case 4:
2280 val = read_raw_int(rawdata, ofs, n);
2281 if (val)
2282 MSI_RecordSetInteger( rec, i+1, val^0x80000000 );
2283 TRACE(" field %d [0x%08x]\n", i+1, val );
2284 break;
2285 default:
2286 ERR("oops - unknown column width %d\n", n);
2287 break;
2288 }
2289 ofs += n;
2290 }
2291 }
2292 return rec;
2293 }
2294
2295 static void dump_record( MSIRECORD *rec )
2296 {
2297 UINT i, n;
2298
2299 n = MSI_RecordGetFieldCount( rec );
2300 for( i=1; i<=n; i++ )
2301 {
2302 LPCWSTR sval = MSI_RecordGetString( rec, i );
2303
2304 if( MSI_RecordIsNull( rec, i ) )
2305 TRACE("row -> []\n");
2306 else if( (sval = MSI_RecordGetString( rec, i )) )
2307 TRACE("row -> [%s]\n", debugstr_w(sval));
2308 else
2309 TRACE("row -> [0x%08x]\n", MSI_RecordGetInteger( rec, i ) );
2310 }
2311 }
2312
2313 static void dump_table( const string_table *st, const USHORT *rawdata, UINT rawsize )
2314 {
2315 LPCWSTR sval;
2316 UINT i;
2317
2318 for( i=0; i<(rawsize/2); i++ )
2319 {
2320 sval = msi_string_lookup_id( st, rawdata[i] );
2321 MESSAGE(" %04x %s\n", rawdata[i], debugstr_w(sval) );
2322 }
2323 }
2324
2325 static UINT* msi_record_to_row( const MSITABLEVIEW *tv, MSIRECORD *rec )
2326 {
2327 LPCWSTR str;
2328 UINT i, r, *data;
2329
2330 data = msi_alloc( tv->num_cols *sizeof (UINT) );
2331 for( i=0; i<tv->num_cols; i++ )
2332 {
2333 data[i] = 0;
2334
2335 if ( ~tv->columns[i].type & MSITYPE_KEY )
2336 continue;
2337
2338 /* turn the transform column value into a row value */
2339 if ( ( tv->columns[i].type & MSITYPE_STRING ) &&
2340 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2341 {
2342 str = MSI_RecordGetString( rec, i+1 );
2343 r = msi_string2idW( tv->db->strings, str, &data[i] );
2344
2345 /* if there's no matching string in the string table,
2346 these keys can't match any record, so fail now. */
2347 if( ERROR_SUCCESS != r )
2348 {
2349 msi_free( data );
2350 return NULL;
2351 }
2352 }
2353 else
2354 {
2355 data[i] = MSI_RecordGetInteger( rec, i+1 );
2356 if ((tv->columns[i].type&0xff) == 2)
2357 data[i] += 0x8000;
2358 else
2359 data[i] += 0x80000000;
2360 }
2361 }
2362 return data;
2363 }
2364
2365 static UINT msi_row_matches( MSITABLEVIEW *tv, UINT row, const UINT *data )
2366 {
2367 UINT i, r, x, ret = ERROR_FUNCTION_FAILED;
2368
2369 for( i=0; i<tv->num_cols; i++ )
2370 {
2371 if ( ~tv->columns[i].type & MSITYPE_KEY )
2372 continue;
2373
2374 /* turn the transform column value into a row value */
2375 r = TABLE_fetch_int( &tv->view, row, i+1, &x );
2376 if ( r != ERROR_SUCCESS )
2377 {
2378 ERR("TABLE_fetch_int shouldn't fail here\n");
2379 break;
2380 }
2381
2382 /* if this key matches, move to the next column */
2383 if ( x != data[i] )
2384 {
2385 ret = ERROR_FUNCTION_FAILED;
2386 break;
2387 }
2388
2389 ret = ERROR_SUCCESS;
2390 }
2391
2392 return ret;
2393 }
2394
2395 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row )
2396 {
2397 UINT i, r = ERROR_FUNCTION_FAILED, *data;
2398
2399 data = msi_record_to_row( tv, rec );
2400 if( !data )
2401 return r;
2402 for( i = 0; i < tv->table->row_count + tv->table->nonpersistent_row_count; i++ )
2403 {
2404 r = msi_row_matches( tv, i, data );
2405 if( r == ERROR_SUCCESS )
2406 {
2407 *row = i;
2408 break;
2409 }
2410 }
2411 msi_free( data );
2412 return r;
2413 }
2414
2415 typedef struct
2416 {
2417 struct list entry;
2418 LPWSTR name;
2419 } TRANSFORMDATA;
2420
2421 static UINT msi_table_load_transform( MSIDATABASE *db, IStorage *stg,
2422 string_table *st, TRANSFORMDATA *transform,
2423 UINT bytes_per_strref )
2424 {
2425 UINT rawsize = 0;
2426 BYTE *rawdata = NULL;
2427 MSITABLEVIEW *tv = NULL;
2428 UINT r, n, sz, i, mask;
2429 MSIRECORD *rec = NULL;
2430 UINT colcol = 0;
2431 WCHAR coltable[32];
2432 LPWSTR name;
2433
2434 if (!transform)
2435 return ERROR_SUCCESS;
2436
2437 name = transform->name;
2438
2439 coltable[0] = 0;
2440 TRACE("%p %p %p %s\n", db, stg, st, debugstr_w(name) );
2441
2442 /* read the transform data */
2443 read_stream_data( stg, name, TRUE, &rawdata, &rawsize );
2444 if ( !rawdata )
2445 {
2446 TRACE("table %s empty\n", debugstr_w(name) );
2447 return ERROR_INVALID_TABLE;
2448 }
2449
2450 /* create a table view */
2451 r = TABLE_CreateView( db, name, (MSIVIEW**) &tv );
2452 if( r != ERROR_SUCCESS )
2453 goto err;
2454
2455 r = tv->view.ops->execute( &tv->view, NULL );
2456 if( r != ERROR_SUCCESS )
2457 goto err;
2458
2459 TRACE("name = %s columns = %u row_size = %u raw size = %u\n",
2460 debugstr_w(name), tv->num_cols, tv->row_size, rawsize );
2461
2462 /* interpret the data */
2463 r = ERROR_SUCCESS;
2464 for( n=0; n < rawsize; )
2465 {
2466 mask = rawdata[n] | (rawdata[n+1] << 8);
2467
2468 if (mask&1)
2469 {
2470 /*
2471 * if the low bit is set, columns are continuous and
2472 * the number of columns is specified in the high byte
2473 */
2474 sz = 2;
2475 for( i=0; i<tv->num_cols; i++ )
2476 {
2477 if( (tv->columns[i].type & MSITYPE_STRING) &&
2478 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2479 sz += bytes_per_strref;
2480 else
2481 sz += bytes_per_column( tv->db, &tv->columns[i] );
2482 }
2483 }
2484 else
2485 {
2486 /*
2487 * If the low bit is not set, mask is a bitmask.
2488 * Excepting for key fields, which are always present,
2489 * each bit indicates that a field is present in the transform record.
2490 *
2491 * mask == 0 is a special case ... only the keys will be present
2492 * and it means that this row should be deleted.
2493 */
2494 sz = 2;
2495 for( i=0; i<tv->num_cols; i++ )
2496 {
2497 if( (tv->columns[i].type & MSITYPE_KEY) || ((1<<i)&mask))
2498 {
2499 if( (tv->columns[i].type & MSITYPE_STRING) &&
2500 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2501 sz += bytes_per_strref;
2502 else
2503 sz += bytes_per_column( tv->db, &tv->columns[i] );
2504 }
2505 }
2506 }
2507
2508 /* check we didn't run of the end of the table */
2509 if ( (n+sz) > rawsize )
2510 {
2511 ERR("borked.\n");
2512 dump_table( st, (USHORT *)rawdata, rawsize );
2513 break;
2514 }
2515
2516 rec = msi_get_transform_record( tv, st, &rawdata[n], bytes_per_strref );
2517 if (rec)
2518 {
2519 if ( mask & 1 )
2520 {
2521 WCHAR table[32];
2522 DWORD sz = 32;
2523 UINT number = MSI_NULL_INTEGER;
2524
2525 TRACE("inserting record\n");
2526
2527 if (!lstrcmpW(name, szColumns))
2528 {
2529 MSI_RecordGetStringW( rec, 1, table, &sz );
2530 number = MSI_RecordGetInteger( rec, 2 );
2531
2532 /*
2533 * Native msi seems writes nul into the Number (2nd) column of
2534 * the _Columns table, only when the columns are from a new table
2535 */
2536 if ( number == MSI_NULL_INTEGER )
2537 {
2538 /* reset the column number on a new table */
2539 if ( lstrcmpW(coltable, table) )
2540 {
2541 colcol = 0;
2542 lstrcpyW( coltable, table );
2543 }
2544
2545 /* fix nul column numbers */
2546 MSI_RecordSetInteger( rec, 2, ++colcol );
2547 }
2548 }
2549
2550 r = TABLE_insert_row( &tv->view, rec, FALSE );
2551 if (r != ERROR_SUCCESS)
2552 ERR("insert row failed\n");
2553
2554 if ( number != MSI_NULL_INTEGER && !lstrcmpW(name, szColumns) )
2555 msi_update_table_columns( db, table );
2556 }
2557 else
2558 {
2559 UINT row = 0;
2560
2561 r = msi_table_find_row( tv, rec, &row );
2562 if (r != ERROR_SUCCESS)
2563 ERR("no matching row to transform\n");
2564 else if ( mask )
2565 {
2566 TRACE("modifying row [%d]:\n", row);
2567 TABLE_set_row( &tv->view, row, rec, mask );
2568 }
2569 else
2570 {
2571 TRACE("deleting row [%d]:\n", row);
2572 TABLE_delete_row( &tv->view, row );
2573 }
2574 }
2575 if( TRACE_ON(msidb) ) dump_record( rec );
2576 msiobj_release( &rec->hdr );
2577 }
2578
2579 n += sz;
2580 }
2581
2582 err:
2583 /* no need to free the table, it's associated with the database */
2584 msi_free( rawdata );
2585 if( tv )
2586 tv->view.ops->delete( &tv->view );
2587
2588 return ERROR_SUCCESS;
2589 }
2590
2591 /*
2592 * msi_table_apply_transform
2593 *
2594 * Enumerate the table transforms in a transform storage and apply each one.
2595 */
2596 UINT msi_table_apply_transform( MSIDATABASE *db, IStorage *stg )
2597 {
2598 struct list transforms;
2599 IEnumSTATSTG *stgenum = NULL;
2600 TRANSFORMDATA *transform;
2601 TRANSFORMDATA *tables = NULL, *columns = NULL;
2602 HRESULT r;
2603 STATSTG stat;
2604 string_table *strings;
2605 UINT ret = ERROR_FUNCTION_FAILED;
2606 UINT bytes_per_strref;
2607
2608 TRACE("%p %p\n", db, stg );
2609
2610 strings = msi_load_string_table( stg, &bytes_per_strref );
2611 if( !strings )
2612 goto end;
2613
2614 r = IStorage_EnumElements( stg, 0, NULL, 0, &stgenum );
2615 if( FAILED( r ) )
2616 goto end;
2617
2618 list_init(&transforms);
2619
2620 while ( TRUE )
2621 {
2622 MSITABLEVIEW *tv = NULL;
2623 WCHAR name[0x40];
2624 ULONG count = 0;
2625
2626 r = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
2627 if ( FAILED( r ) || !count )
2628 break;
2629
2630 decode_streamname( stat.pwcsName, name );
2631 CoTaskMemFree( stat.pwcsName );
2632 if ( name[0] != 0x4840 )
2633 continue;
2634
2635 if ( !lstrcmpW( name+1, szStringPool ) ||
2636 !lstrcmpW( name+1, szStringData ) )
2637 continue;
2638
2639 transform = msi_alloc_zero( sizeof(TRANSFORMDATA) );
2640 if ( !transform )
2641 break;
2642
2643 list_add_tail( &transforms, &transform->entry );
2644
2645 transform->name = strdupW( name + 1 );
2646
2647 if ( !lstrcmpW( transform->name, szTables ) )
2648 tables = transform;
2649 else if (!lstrcmpW( transform->name, szColumns ) )
2650 columns = transform;
2651
2652 TRACE("transform contains stream %s\n", debugstr_w(name));
2653
2654 /* load the table */
2655 r = TABLE_CreateView( db, transform->name, (MSIVIEW**) &tv );
2656 if( r != ERROR_SUCCESS )
2657 continue;
2658
2659 r = tv->view.ops->execute( &tv->view, NULL );
2660 if( r != ERROR_SUCCESS )
2661 {
2662 tv->view.ops->delete( &tv->view );
2663 continue;
2664 }
2665
2666 tv->view.ops->delete( &tv->view );
2667 }
2668
2669 /*
2670 * Apply _Tables and _Columns transforms first so that
2671 * the table metadata is correct, and empty tables exist.
2672 */
2673 ret = msi_table_load_transform( db, stg, strings, tables, bytes_per_strref );
2674 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2675 goto end;
2676
2677 ret = msi_table_load_transform( db, stg, strings, columns, bytes_per_strref );
2678 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2679 goto end;
2680
2681 ret = ERROR_SUCCESS;
2682
2683 while ( !list_empty( &transforms ) )
2684 {
2685 transform = LIST_ENTRY( list_head( &transforms ), TRANSFORMDATA, entry );
2686
2687 if ( lstrcmpW( transform->name, szColumns ) &&
2688 lstrcmpW( transform->name, szTables ) &&
2689 ret == ERROR_SUCCESS )
2690 {
2691 ret = msi_table_load_transform( db, stg, strings, transform, bytes_per_strref );
2692 }
2693
2694 list_remove( &transform->entry );
2695 msi_free( transform->name );
2696 msi_free( transform );
2697 }
2698
2699 if ( ret == ERROR_SUCCESS )
2700 append_storage_to_db( db, stg );
2701
2702 end:
2703 if ( stgenum )
2704 IEnumSTATSTG_Release( stgenum );
2705 if ( strings )
2706 msi_destroy_stringtable( strings );
2707
2708 return ret;
2709 }
2710
2711 void append_storage_to_db( MSIDATABASE *db, IStorage *stg )
2712 {
2713 MSITRANSFORM *t;
2714
2715 t = msi_alloc( sizeof *t );
2716 t->stg = stg;
2717 IStorage_AddRef( stg );
2718 list_add_tail( &db->transforms, &t->entry );
2719 }
2720
2721 void msi_free_transforms( MSIDATABASE *db )
2722 {
2723 while( !list_empty( &db->transforms ) )
2724 {
2725 MSITRANSFORM *t = LIST_ENTRY( list_head( &db->transforms ),
2726 MSITRANSFORM, entry );
2727 list_remove( &t->entry );
2728 IStorage_Release( t->stg );
2729 msi_free( t );
2730 }
2731 }