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push 049c9817897651ab7f8ef77a0d7281f865fdcedf
[wine/hacks.git] / dlls / msi / table.c
blob4f320b66c6460900a6ede6be2d6525e16b407a3f
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 /* if there's no columns, there's no table */
589 if( column_count == 0 )
590 return ERROR_INVALID_PARAMETER;
591
592 TRACE("Table %s found\n", debugstr_w(name) );
593
594 columns = msi_alloc( column_count*sizeof (MSICOLUMNINFO) );
595 if( !columns )
596 return ERROR_FUNCTION_FAILED;
597
598 r = get_tablecolumns( db, name, columns, &column_count );
599 if( r != ERROR_SUCCESS )
600 {
601 msi_free( columns );
602 return ERROR_FUNCTION_FAILED;
603 }
604
605 *pcols = columns;
606 *pcount = column_count;
607
608 return r;
609 }
610
611 UINT msi_create_table( MSIDATABASE *db, LPCWSTR name, column_info *col_info,
612 BOOL persistent, MSITABLE **table_ret)
613 {
614 UINT r, nField;
615 MSIVIEW *tv = NULL;
616 MSIRECORD *rec = NULL;
617 column_info *col;
618 MSITABLE *table;
619 UINT i;
620
621 /* only add tables that don't exist already */
622 if( TABLE_Exists(db, name ) )
623 {
624 WARN("table %s exists\n", debugstr_w(name));
625 return ERROR_BAD_QUERY_SYNTAX;
626 }
627
628 table = msi_alloc( sizeof (MSITABLE) + lstrlenW(name)*sizeof (WCHAR) );
629 if( !table )
630 return ERROR_FUNCTION_FAILED;
631
632 table->ref_count = 1;
633 table->row_count = 0;
634 table->data = NULL;
635 table->nonpersistent_row_count = 0;
636 table->nonpersistent_data = NULL;
637 table->colinfo = NULL;
638 table->col_count = 0;
639 table->persistent = persistent;
640 lstrcpyW( table->name, name );
641
642 for( col = col_info; col; col = col->next )
643 table->col_count++;
644
645 table->colinfo = msi_alloc( table->col_count * sizeof(MSICOLUMNINFO) );
646 if (!table->colinfo)
647 {
648 free_table( table );
649 return ERROR_FUNCTION_FAILED;
650 }
651
652 for( i = 0, col = col_info; col; i++, col = col->next )
653 {
654 table->colinfo[ i ].tablename = strdupW( col->table );
655 table->colinfo[ i ].number = i + 1;
656 table->colinfo[ i ].colname = strdupW( col->column );
657 table->colinfo[ i ].type = col->type;
658 table->colinfo[ i ].offset = 0;
659 table->colinfo[ i ].ref_count = 0;
660 table->colinfo[ i ].hash_table = NULL;
661 }
662 table_calc_column_offsets( db, table->colinfo, table->col_count);
663
664 r = TABLE_CreateView( db, szTables, &tv );
665 TRACE("CreateView returned %x\n", r);
666 if( r )
667 {
668 free_table( table );
669 return r;
670 }
671
672 r = tv->ops->execute( tv, 0 );
673 TRACE("tv execute returned %x\n", r);
674 if( r )
675 goto err;
676
677 rec = MSI_CreateRecord( 1 );
678 if( !rec )
679 goto err;
680
681 r = MSI_RecordSetStringW( rec, 1, name );
682 if( r )
683 goto err;
684
685 r = tv->ops->insert_row( tv, rec, !persistent );
686 TRACE("insert_row returned %x\n", r);
687 if( r )
688 goto err;
689
690 tv->ops->delete( tv );
691 tv = NULL;
692
693 msiobj_release( &rec->hdr );
694 rec = NULL;
695
696 if( persistent )
697 {
698 /* add each column to the _Columns table */
699 r = TABLE_CreateView( db, szColumns, &tv );
700 if( r )
701 return r;
702
703 r = tv->ops->execute( tv, 0 );
704 TRACE("tv execute returned %x\n", r);
705 if( r )
706 goto err;
707
708 rec = MSI_CreateRecord( 4 );
709 if( !rec )
710 goto err;
711
712 r = MSI_RecordSetStringW( rec, 1, name );
713 if( r )
714 goto err;
715
716 /*
717 * need to set the table, column number, col name and type
718 * for each column we enter in the table
719 */
720 nField = 1;
721 for( col = col_info; col; col = col->next )
722 {
723 r = MSI_RecordSetInteger( rec, 2, nField );
724 if( r )
725 goto err;
726
727 r = MSI_RecordSetStringW( rec, 3, col->column );
728 if( r )
729 goto err;
730
731 r = MSI_RecordSetInteger( rec, 4, col->type );
732 if( r )
733 goto err;
734
735 r = tv->ops->insert_row( tv, rec, FALSE );
736 if( r )
737 goto err;
738
739 nField++;
740 }
741 if( !col )
742 r = ERROR_SUCCESS;
743 }
744
745 err:
746 if (rec)
747 msiobj_release( &rec->hdr );
748 /* FIXME: remove values from the string table on error */
749 if( tv )
750 tv->ops->delete( tv );
751
752 if (r == ERROR_SUCCESS)
753 {
754 list_add_head( &db->tables, &table->entry );
755 *table_ret = table;
756 }
757 else
758 free_table( table );
759
760 return r;
761 }
762
763 static UINT get_table( MSIDATABASE *db, LPCWSTR name, MSITABLE **table_ret )
764 {
765 MSITABLE *table;
766 UINT r;
767
768 /* first, see if the table is cached */
769 table = find_cached_table( db, name );
770 if( table )
771 {
772 *table_ret = table;
773 return ERROR_SUCCESS;
774 }
775
776 /* nonexistent tables should be interpreted as empty tables */
777 table = msi_alloc( sizeof (MSITABLE) + lstrlenW(name)*sizeof (WCHAR) );
778 if( !table )
779 return ERROR_FUNCTION_FAILED;
780
781 table->row_count = 0;
782 table->data = NULL;
783 table->nonpersistent_row_count = 0;
784 table->nonpersistent_data = NULL;
785 table->colinfo = NULL;
786 table->col_count = 0;
787 table->persistent = TRUE;
788 lstrcpyW( table->name, name );
789
790 r = table_get_column_info( db, name, &table->colinfo, &table->col_count);
791 if (r != ERROR_SUCCESS)
792 {
793 free_table ( table );
794 return r;
795 }
796
797 r = read_table_from_storage( db, table, db->storage );
798 if( r != ERROR_SUCCESS )
799 {
800 free_table( table );
801 return r;
802 }
803
804 list_add_head( &db->tables, &table->entry );
805 *table_ret = table;
806 return ERROR_SUCCESS;
807 }
808
809 static UINT save_table( MSIDATABASE *db, const MSITABLE *t )
810 {
811 BYTE *rawdata = NULL, *p;
812 UINT rawsize, r, i, j, row_size;
813
814 /* Nothing to do for non-persistent tables */
815 if( !t->persistent )
816 return ERROR_SUCCESS;
817
818 TRACE("Saving %s\n", debugstr_w( t->name ) );
819
820 row_size = msi_table_get_row_size( db, t->colinfo, t->col_count );
821
822 rawsize = t->row_count * row_size;
823 rawdata = msi_alloc_zero( rawsize );
824 if( !rawdata )
825 {
826 r = ERROR_NOT_ENOUGH_MEMORY;
827 goto err;
828 }
829
830 p = rawdata;
831 for( i=0; i<t->col_count; i++ )
832 {
833 for( j=0; j<t->row_count; j++ )
834 {
835 UINT offset = t->colinfo[i].offset;
836
837 *p++ = t->data[j][offset];
838 *p++ = t->data[j][offset + 1];
839 if( 4 == bytes_per_column( db, &t->colinfo[i] ) )
840 {
841 *p++ = t->data[j][offset + 2];
842 *p++ = t->data[j][offset + 3];
843 }
844 }
845 }
846
847 TRACE("writing %d bytes\n", rawsize);
848 r = write_stream_data( db->storage, t->name, rawdata, rawsize, TRUE );
849
850 err:
851 msi_free( rawdata );
852
853 return r;
854 }
855
856 static void table_calc_column_offsets( MSIDATABASE *db, MSICOLUMNINFO *colinfo,
857 DWORD count )
858 {
859 DWORD i;
860
861 for( i=0; colinfo && (i<count); i++ )
862 {
863 assert( (i+1) == colinfo[ i ].number );
864 if (i)
865 colinfo[i].offset = colinfo[ i - 1 ].offset
866 + bytes_per_column( db, &colinfo[ i - 1 ] );
867 else
868 colinfo[i].offset = 0;
869 TRACE("column %d is [%s] with type %08x ofs %d\n",
870 colinfo[i].number, debugstr_w(colinfo[i].colname),
871 colinfo[i].type, colinfo[i].offset);
872 }
873 }
874
875 static UINT get_defaulttablecolumns( MSIDATABASE *db, LPCWSTR name,
876 MSICOLUMNINFO *colinfo, UINT *sz)
877 {
878 const MSICOLUMNINFO *p;
879 DWORD i, n;
880
881 TRACE("%s\n", debugstr_w(name));
882
883 if (!lstrcmpW( name, szTables ))
884 {
885 p = _Tables_cols;
886 n = 1;
887 }
888 else if (!lstrcmpW( name, szColumns ))
889 {
890 p = _Columns_cols;
891 n = 4;
892 }
893 else
894 return ERROR_FUNCTION_FAILED;
895
896 /* duplicate the string data so we can free it in msi_free_colinfo */
897 for (i=0; i<n; i++)
898 {
899 if (colinfo && (i < *sz) )
900 {
901 colinfo[i] = p[i];
902 colinfo[i].tablename = strdupW( p[i].tablename );
903 colinfo[i].colname = strdupW( p[i].colname );
904 }
905 if( colinfo && (i >= *sz) )
906 break;
907 }
908 table_calc_column_offsets( db, colinfo, n );
909 *sz = n;
910 return ERROR_SUCCESS;
911 }
912
913 static void msi_free_colinfo( MSICOLUMNINFO *colinfo, UINT count )
914 {
915 UINT i;
916
917 for( i=0; i<count; i++ )
918 {
919 msi_free( colinfo[i].tablename );
920 msi_free( colinfo[i].colname );
921 msi_free( colinfo[i].hash_table );
922 }
923 }
924
925 static LPWSTR msi_makestring( const MSIDATABASE *db, UINT stringid)
926 {
927 return strdupW(msi_string_lookup_id( db->strings, stringid ));
928 }
929
930 static UINT read_table_int(BYTE *const *data, UINT row, UINT col, UINT bytes)
931 {
932 UINT ret = 0, i;
933
934 for (i = 0; i < bytes; i++)
935 ret += (data[row][col + i] << i * 8);
936
937 return ret;
938 }
939
940 static UINT get_tablecolumns( MSIDATABASE *db,
941 LPCWSTR szTableName, MSICOLUMNINFO *colinfo, UINT *sz)
942 {
943 UINT r, i, n=0, table_id, count, maxcount = *sz;
944 MSITABLE *table = NULL;
945
946 TRACE("%s\n", debugstr_w(szTableName));
947
948 /* first check if there is a default table with that name */
949 r = get_defaulttablecolumns( db, szTableName, colinfo, sz );
950 if( ( r == ERROR_SUCCESS ) && *sz )
951 return r;
952
953 r = get_table( db, szColumns, &table );
954 if( r != ERROR_SUCCESS )
955 {
956 ERR("couldn't load _Columns table\n");
957 return ERROR_FUNCTION_FAILED;
958 }
959
960 /* convert table and column names to IDs from the string table */
961 r = msi_string2idW( db->strings, szTableName, &table_id );
962 if( r != ERROR_SUCCESS )
963 {
964 WARN("Couldn't find id for %s\n", debugstr_w(szTableName));
965 return r;
966 }
967
968 TRACE("Table id is %d, row count is %d\n", table_id, table->row_count);
969
970 /* Note: _Columns table doesn't have non-persistent data */
971
972 /* if maxcount is non-zero, assume it's exactly right for this table */
973 memset( colinfo, 0, maxcount*sizeof(*colinfo) );
974 count = table->row_count;
975 for( i=0; i<count; i++ )
976 {
977 if( read_table_int(table->data, i, 0, db->bytes_per_strref) != table_id )
978 continue;
979 if( colinfo )
980 {
981 UINT id = read_table_int(table->data, i, table->colinfo[2].offset, db->bytes_per_strref);
982 UINT col = read_table_int(table->data, i, table->colinfo[1].offset, sizeof(USHORT)) - (1<<15);
983
984 /* check the column number is in range */
985 if (col<1 || col>maxcount)
986 {
987 ERR("column %d out of range\n", col);
988 continue;
989 }
990
991 /* check if this column was already set */
992 if (colinfo[ col - 1 ].number)
993 {
994 ERR("duplicate column %d\n", col);
995 continue;
996 }
997
998 colinfo[ col - 1 ].tablename = msi_makestring( db, table_id );
999 colinfo[ col - 1 ].number = col;
1000 colinfo[ col - 1 ].colname = msi_makestring( db, id );
1001 colinfo[ col - 1 ].type = read_table_int(table->data, i,
1002 table->colinfo[3].offset,
1003 sizeof(USHORT)) - (1<<15);
1004 colinfo[ col - 1 ].offset = 0;
1005 colinfo[ col - 1 ].ref_count = 0;
1006 colinfo[ col - 1 ].hash_table = NULL;
1007 }
1008 n++;
1009 }
1010
1011 TRACE("%s has %d columns\n", debugstr_w(szTableName), n);
1012
1013 if (colinfo && n != maxcount)
1014 {
1015 ERR("missing column in table %s\n", debugstr_w(szTableName));
1016 msi_free_colinfo(colinfo, maxcount );
1017 return ERROR_FUNCTION_FAILED;
1018 }
1019
1020 table_calc_column_offsets( db, colinfo, n );
1021 *sz = n;
1022
1023 return ERROR_SUCCESS;
1024 }
1025
1026 static void msi_update_table_columns( MSIDATABASE *db, LPCWSTR name )
1027 {
1028 MSITABLE *table;
1029 UINT size, offset, old_count;
1030 UINT n;
1031
1032 table = find_cached_table( db, name );
1033 old_count = table->col_count;
1034 msi_free( table->colinfo );
1035 table_get_column_info( db, name, &table->colinfo, &table->col_count );
1036
1037 size = msi_table_get_row_size( db, table->colinfo, table->col_count );
1038 offset = table->colinfo[table->col_count - 1].offset;
1039
1040 for ( n = 0; n < table->row_count; n++ )
1041 {
1042 table->data[n] = msi_realloc( table->data[n], size );
1043 if (old_count < table->col_count)
1044 memset( &table->data[n][offset], 0, size - offset );
1045 }
1046 }
1047
1048 /* try to find the table name in the _Tables table */
1049 BOOL TABLE_Exists( MSIDATABASE *db, LPCWSTR name )
1050 {
1051 UINT r, table_id = 0, i, count;
1052 MSITABLE *table = NULL;
1053
1054 if( !lstrcmpW( name, szTables ) )
1055 return TRUE;
1056 if( !lstrcmpW( name, szColumns ) )
1057 return TRUE;
1058
1059 r = msi_string2idW( db->strings, name, &table_id );
1060 if( r != ERROR_SUCCESS )
1061 {
1062 TRACE("Couldn't find id for %s\n", debugstr_w(name));
1063 return FALSE;
1064 }
1065
1066 r = get_table( db, szTables, &table );
1067 if( r != ERROR_SUCCESS )
1068 {
1069 ERR("table %s not available\n", debugstr_w(szTables));
1070 return FALSE;
1071 }
1072
1073 count = table->row_count;
1074 for( i=0; i<count; i++ )
1075 if( table->data[ i ][ 0 ] == table_id )
1076 return TRUE;
1077
1078 count = table->nonpersistent_row_count;
1079 for( i=0; i<count; i++ )
1080 if( table->nonpersistent_data[ i ][ 0 ] == table_id )
1081 return TRUE;
1082
1083 return FALSE;
1084 }
1085
1086 /* below is the query interface to a table */
1087
1088 typedef struct tagMSITABLEVIEW
1089 {
1090 MSIVIEW view;
1091 MSIDATABASE *db;
1092 MSITABLE *table;
1093 MSICOLUMNINFO *columns;
1094 MSIORDERINFO *order;
1095 UINT num_cols;
1096 UINT row_size;
1097 WCHAR name[1];
1098 } MSITABLEVIEW;
1099
1100 static UINT TABLE_fetch_int( struct tagMSIVIEW *view, UINT row, UINT col, UINT *val )
1101 {
1102 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1103 UINT offset, n;
1104 BYTE **data;
1105
1106 if( !tv->table )
1107 return ERROR_INVALID_PARAMETER;
1108
1109 if( (col==0) || (col>tv->num_cols) )
1110 return ERROR_INVALID_PARAMETER;
1111
1112 /* how many rows are there ? */
1113 if( row >= tv->table->row_count + tv->table->nonpersistent_row_count )
1114 return ERROR_NO_MORE_ITEMS;
1115
1116 if( tv->columns[col-1].offset >= tv->row_size )
1117 {
1118 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1119 ERR("%p %p\n", tv, tv->columns );
1120 return ERROR_FUNCTION_FAILED;
1121 }
1122
1123 if (tv->order)
1124 row = tv->order->reorder[row];
1125
1126 if (row >= tv->table->row_count)
1127 {
1128 row -= tv->table->row_count;
1129 data = tv->table->nonpersistent_data;
1130 }
1131 else
1132 data = tv->table->data;
1133
1134 n = bytes_per_column( tv->db, &tv->columns[col-1] );
1135 if (n != 2 && n != 3 && n != 4)
1136 {
1137 ERR("oops! what is %d bytes per column?\n", n );
1138 return ERROR_FUNCTION_FAILED;
1139 }
1140
1141 offset = tv->columns[col-1].offset;
1142 *val = read_table_int(data, row, offset, n);
1143
1144 /* TRACE("Data [%d][%d] = %d\n", row, col, *val ); */
1145
1146 return ERROR_SUCCESS;
1147 }
1148
1149 /*
1150 * We need a special case for streams, as we need to reference column with
1151 * the name of the stream in the same table, and the table name
1152 * which may not be available at higher levels of the query
1153 */
1154 static UINT TABLE_fetch_stream( struct tagMSIVIEW *view, UINT row, UINT col, IStream **stm )
1155 {
1156 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1157 UINT ival = 0, refcol = 0, r;
1158 LPCWSTR sval;
1159 LPWSTR full_name;
1160 DWORD len;
1161 static const WCHAR szDot[] = { '.', 0 };
1162 WCHAR number[0x20];
1163
1164 if( !view->ops->fetch_int )
1165 return ERROR_INVALID_PARAMETER;
1166
1167 /*
1168 * The column marked with the type stream data seems to have a single number
1169 * which references the column containing the name of the stream data
1170 *
1171 * Fetch the column to reference first.
1172 */
1173 r = view->ops->fetch_int( view, row, col, &ival );
1174 if( r != ERROR_SUCCESS )
1175 return r;
1176
1177 /* check the column value is in range */
1178 if (ival > tv->num_cols || ival == col)
1179 {
1180 ERR("bad column ref (%u) for stream\n", ival);
1181 return ERROR_FUNCTION_FAILED;
1182 }
1183
1184 if ( tv->columns[ival - 1].type & MSITYPE_STRING )
1185 {
1186 /* now get the column with the name of the stream */
1187 r = view->ops->fetch_int( view, row, ival, &refcol );
1188 if ( r != ERROR_SUCCESS )
1189 return r;
1190
1191 /* lookup the string value from the string table */
1192 sval = msi_string_lookup_id( tv->db->strings, refcol );
1193 if ( !sval )
1194 return ERROR_INVALID_PARAMETER;
1195 }
1196 else
1197 {
1198 static const WCHAR fmt[] = { '%','d',0 };
1199 sprintfW( number, fmt, ival );
1200 sval = number;
1201 }
1202
1203 len = lstrlenW( tv->name ) + 2 + lstrlenW( sval );
1204 full_name = msi_alloc( len*sizeof(WCHAR) );
1205 lstrcpyW( full_name, tv->name );
1206 lstrcatW( full_name, szDot );
1207 lstrcatW( full_name, sval );
1208
1209 r = db_get_raw_stream( tv->db, full_name, stm );
1210 if( r )
1211 ERR("fetching stream %s, error = %d\n",debugstr_w(full_name), r);
1212 msi_free( full_name );
1213
1214 return r;
1215 }
1216
1217 static UINT TABLE_set_int( MSITABLEVIEW *tv, UINT row, UINT col, UINT val )
1218 {
1219 UINT offset, n, i;
1220 BYTE **data;
1221
1222 if( !tv->table )
1223 return ERROR_INVALID_PARAMETER;
1224
1225 if( (col==0) || (col>tv->num_cols) )
1226 return ERROR_INVALID_PARAMETER;
1227
1228 if( row >= tv->table->row_count + tv->table->nonpersistent_row_count )
1229 return ERROR_INVALID_PARAMETER;
1230
1231 if( tv->columns[col-1].offset >= tv->row_size )
1232 {
1233 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1234 ERR("%p %p\n", tv, tv->columns );
1235 return ERROR_FUNCTION_FAILED;
1236 }
1237
1238 msi_free( tv->columns[col-1].hash_table );
1239 tv->columns[col-1].hash_table = NULL;
1240
1241 if (row >= tv->table->row_count)
1242 {
1243 row -= tv->table->row_count;
1244 data = tv->table->nonpersistent_data;
1245 }
1246 else
1247 data = tv->table->data;
1248
1249 n = bytes_per_column( tv->db, &tv->columns[col-1] );
1250 if ( n != 2 && n != 3 && n != 4 )
1251 {
1252 ERR("oops! what is %d bytes per column?\n", n );
1253 return ERROR_FUNCTION_FAILED;
1254 }
1255
1256 offset = tv->columns[col-1].offset;
1257 for ( i = 0; i < n; i++ )
1258 data[row][offset + i] = (val >> i * 8) & 0xff;
1259
1260 return ERROR_SUCCESS;
1261 }
1262
1263 static UINT TABLE_get_row( struct tagMSIVIEW *view, UINT row, MSIRECORD **rec )
1264 {
1265 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1266
1267 if (!tv->table)
1268 return ERROR_INVALID_PARAMETER;
1269
1270 if (tv->order)
1271 row = tv->order->reorder[row];
1272
1273 return msi_view_get_row(tv->db, view, row, rec);
1274 }
1275
1276 static UINT TABLE_set_row( struct tagMSIVIEW *view, UINT row, MSIRECORD *rec, UINT mask )
1277 {
1278 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1279 UINT i, val, r = ERROR_SUCCESS;
1280
1281 if ( !tv->table )
1282 return ERROR_INVALID_PARAMETER;
1283
1284 /* test if any of the mask bits are invalid */
1285 if ( mask >= (1<<tv->num_cols) )
1286 return ERROR_INVALID_PARAMETER;
1287
1288 for ( i = 0; i < tv->num_cols; i++ )
1289 {
1290 BOOL persistent;
1291
1292 /* only update the fields specified in the mask */
1293 if ( !(mask&(1<<i)) )
1294 continue;
1295
1296 /* if row >= tv->table->row_count then it is a non-persistent row */
1297 persistent = tv->table->persistent && (row < tv->table->row_count);
1298 /* FIXME: should we allow updating keys? */
1299
1300 val = 0;
1301 if ( !MSI_RecordIsNull( rec, i + 1 ) )
1302 {
1303 if ( MSITYPE_IS_BINARY(tv->columns[ i ].type) )
1304 {
1305 val = 1; /* refers to the first key column */
1306 }
1307 else if ( tv->columns[i].type & MSITYPE_STRING )
1308 {
1309 LPCWSTR sval = MSI_RecordGetString( rec, i + 1 );
1310 UINT ival, x;
1311
1312 r = msi_string2idW(tv->db->strings, sval, &ival);
1313 if (r == ERROR_SUCCESS)
1314 {
1315 TABLE_fetch_int(&tv->view, row, i + 1, &x);
1316 if (ival == x)
1317 continue;
1318 }
1319
1320 val = msi_addstringW( tv->db->strings, 0, sval, -1, 1,
1321 persistent ? StringPersistent : StringNonPersistent );
1322 }
1323 else if ( 2 == bytes_per_column( tv->db, &tv->columns[ i ] ) )
1324 {
1325 val = 0x8000 + MSI_RecordGetInteger( rec, i + 1 );
1326 if ( val & 0xffff0000 )
1327 {
1328 ERR("field %u value %d out of range\n", i+1, val - 0x8000 );
1329 return ERROR_FUNCTION_FAILED;
1330 }
1331 }
1332 else
1333 {
1334 INT ival = MSI_RecordGetInteger( rec, i + 1 );
1335 val = ival ^ 0x80000000;
1336 }
1337 }
1338
1339 r = TABLE_set_int( tv, row, i+1, val );
1340 if ( r != ERROR_SUCCESS )
1341 break;
1342 }
1343 return r;
1344 }
1345
1346 static UINT table_create_new_row( struct tagMSIVIEW *view, UINT *num, BOOL temporary )
1347 {
1348 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1349 BYTE **p, *row;
1350 UINT sz;
1351 BYTE ***data_ptr;
1352 UINT *row_count;
1353
1354 TRACE("%p %s\n", view, temporary ? "TRUE" : "FALSE");
1355
1356 if( !tv->table )
1357 return ERROR_INVALID_PARAMETER;
1358
1359 row = msi_alloc_zero( tv->row_size );
1360 if( !row )
1361 return ERROR_NOT_ENOUGH_MEMORY;
1362
1363 if( temporary )
1364 {
1365 row_count = &tv->table->nonpersistent_row_count;
1366 data_ptr = &tv->table->nonpersistent_data;
1367 *num = tv->table->row_count + tv->table->nonpersistent_row_count;
1368 }
1369 else
1370 {
1371 row_count = &tv->table->row_count;
1372 data_ptr = &tv->table->data;
1373 *num = tv->table->row_count;
1374 }
1375
1376 sz = (*row_count + 1) * sizeof (BYTE*);
1377 if( *data_ptr )
1378 p = msi_realloc( *data_ptr, sz );
1379 else
1380 p = msi_alloc( sz );
1381 if( !p )
1382 {
1383 msi_free( row );
1384 return ERROR_NOT_ENOUGH_MEMORY;
1385 }
1386
1387 *data_ptr = p;
1388 (*data_ptr)[*row_count] = row;
1389 (*row_count)++;
1390
1391 return ERROR_SUCCESS;
1392 }
1393
1394 static UINT TABLE_execute( struct tagMSIVIEW *view, MSIRECORD *record )
1395 {
1396 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1397
1398 TRACE("%p %p\n", tv, record);
1399
1400 TRACE("There are %d columns\n", tv->num_cols );
1401
1402 return ERROR_SUCCESS;
1403 }
1404
1405 static UINT TABLE_close( struct tagMSIVIEW *view )
1406 {
1407 TRACE("%p\n", view );
1408
1409 return ERROR_SUCCESS;
1410 }
1411
1412 static UINT TABLE_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols)
1413 {
1414 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1415
1416 TRACE("%p %p %p\n", view, rows, cols );
1417
1418 if( cols )
1419 *cols = tv->num_cols;
1420 if( rows )
1421 {
1422 if( !tv->table )
1423 return ERROR_INVALID_PARAMETER;
1424 *rows = tv->table->row_count + tv->table->nonpersistent_row_count;
1425 }
1426
1427 return ERROR_SUCCESS;
1428 }
1429
1430 static UINT TABLE_get_column_info( struct tagMSIVIEW *view,
1431 UINT n, LPWSTR *name, UINT *type )
1432 {
1433 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1434
1435 TRACE("%p %d %p %p\n", tv, n, name, type );
1436
1437 if( ( n == 0 ) || ( n > tv->num_cols ) )
1438 return ERROR_INVALID_PARAMETER;
1439
1440 if( name )
1441 {
1442 *name = strdupW( tv->columns[n-1].colname );
1443 if( !*name )
1444 return ERROR_FUNCTION_FAILED;
1445 }
1446 if( type )
1447 *type = tv->columns[n-1].type;
1448
1449 return ERROR_SUCCESS;
1450 }
1451
1452 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row );
1453
1454 static UINT table_validate_new( MSITABLEVIEW *tv, MSIRECORD *rec )
1455 {
1456 UINT r, row, i;
1457
1458 /* check there's no null values where they're not allowed */
1459 for( i = 0; i < tv->num_cols; i++ )
1460 {
1461 if ( tv->columns[i].type & MSITYPE_NULLABLE )
1462 continue;
1463
1464 if ( MSITYPE_IS_BINARY(tv->columns[i].type) )
1465 TRACE("skipping binary column\n");
1466 else if ( tv->columns[i].type & MSITYPE_STRING )
1467 {
1468 LPCWSTR str;
1469
1470 str = MSI_RecordGetString( rec, i+1 );
1471 if (str == NULL || str[0] == 0)
1472 return ERROR_INVALID_DATA;
1473 }
1474 else
1475 {
1476 UINT n;
1477
1478 n = MSI_RecordGetInteger( rec, i+1 );
1479 if (n == MSI_NULL_INTEGER)
1480 return ERROR_INVALID_DATA;
1481 }
1482 }
1483
1484 /* check there's no duplicate keys */
1485 r = msi_table_find_row( tv, rec, &row );
1486 if (r == ERROR_SUCCESS)
1487 return ERROR_FUNCTION_FAILED;
1488
1489 return ERROR_SUCCESS;
1490 }
1491
1492 static UINT TABLE_insert_row( struct tagMSIVIEW *view, MSIRECORD *rec, BOOL temporary )
1493 {
1494 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1495 UINT r, row = -1;
1496
1497 TRACE("%p %p %s\n", tv, rec, temporary ? "TRUE" : "FALSE" );
1498
1499 /* check that the key is unique - can we find a matching row? */
1500 r = table_validate_new( tv, rec );
1501 if( r != ERROR_SUCCESS )
1502 return ERROR_FUNCTION_FAILED;
1503
1504 r = table_create_new_row( view, &row, temporary );
1505 TRACE("insert_row returned %08x\n", r);
1506 if( r != ERROR_SUCCESS )
1507 return r;
1508
1509 return TABLE_set_row( view, row, rec, (1<<tv->num_cols) - 1 );
1510 }
1511
1512 static UINT TABLE_delete_row( struct tagMSIVIEW *view, UINT row )
1513 {
1514 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1515 UINT r, num_rows, num_cols, i;
1516 BYTE **data;
1517
1518 TRACE("%p %d\n", tv, row);
1519
1520 if ( !tv->table )
1521 return ERROR_INVALID_PARAMETER;
1522
1523 r = TABLE_get_dimensions( view, &num_rows, &num_cols );
1524 if ( r != ERROR_SUCCESS )
1525 return r;
1526
1527 if ( row >= num_rows )
1528 return ERROR_FUNCTION_FAILED;
1529
1530 if ( row < tv->table->row_count )
1531 {
1532 num_rows = tv->table->row_count;
1533 tv->table->row_count--;
1534 data = tv->table->data;
1535 }
1536 else
1537 {
1538 num_rows = tv->table->nonpersistent_row_count;
1539 row -= tv->table->row_count;
1540 tv->table->nonpersistent_row_count--;
1541 data = tv->table->nonpersistent_data;
1542 }
1543
1544 /* reset the hash tables */
1545 for (i = 0; i < tv->num_cols; i++)
1546 {
1547 msi_free( tv->columns[i].hash_table );
1548 tv->columns[i].hash_table = NULL;
1549 }
1550
1551 if ( row == num_rows - 1 )
1552 return ERROR_SUCCESS;
1553
1554 for (i = row + 1; i < num_rows; i++)
1555 memcpy(data[i - 1], data[i], tv->row_size);
1556
1557 return ERROR_SUCCESS;
1558 }
1559
1560 static UINT msi_table_update(struct tagMSIVIEW *view, MSIRECORD *rec, UINT row)
1561 {
1562 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1563 UINT r, new_row;
1564
1565 /* FIXME: MsiViewFetch should set rec index 0 to some ID that
1566 * sets the fetched record apart from other records
1567 */
1568
1569 if (!tv->table)
1570 return ERROR_INVALID_PARAMETER;
1571
1572 r = msi_table_find_row(tv, rec, &new_row);
1573 if (r != ERROR_SUCCESS)
1574 {
1575 ERR("can't find row to modify\n");
1576 return ERROR_FUNCTION_FAILED;
1577 }
1578
1579 /* the row cannot be changed */
1580 if (row != new_row + 1)
1581 return ERROR_FUNCTION_FAILED;
1582
1583 return TABLE_set_row(view, new_row, rec, (1 << tv->num_cols) - 1);
1584 }
1585
1586 static UINT modify_delete_row( struct tagMSIVIEW *view, MSIRECORD *rec )
1587 {
1588 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1589 UINT row, r;
1590
1591 r = msi_table_find_row(tv, rec, &row);
1592 if (r != ERROR_SUCCESS)
1593 return r;
1594
1595 return TABLE_delete_row(view, row);
1596 }
1597
1598 static UINT msi_refresh_record( struct tagMSIVIEW *view, MSIRECORD *rec, UINT row )
1599 {
1600 MSIRECORD *curr;
1601 UINT r, i, count;
1602
1603 r = TABLE_get_row(view, row - 1, &curr);
1604 if (r != ERROR_SUCCESS)
1605 return r;
1606
1607 count = MSI_RecordGetFieldCount(rec);
1608 for (i = 0; i < count; i++)
1609 MSI_RecordCopyField(curr, i + 1, rec, i + 1);
1610
1611 msiobj_release(&curr->hdr);
1612 return ERROR_SUCCESS;
1613 }
1614
1615 static UINT TABLE_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode,
1616 MSIRECORD *rec, UINT row)
1617 {
1618 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1619 UINT r;
1620
1621 TRACE("%p %d %p\n", view, eModifyMode, rec );
1622
1623 switch (eModifyMode)
1624 {
1625 case MSIMODIFY_DELETE:
1626 r = modify_delete_row( view, rec );
1627 break;
1628 case MSIMODIFY_VALIDATE_NEW:
1629 r = table_validate_new( tv, rec );
1630 break;
1631
1632 case MSIMODIFY_INSERT:
1633 r = table_validate_new( tv, rec );
1634 if (r != ERROR_SUCCESS)
1635 break;
1636 r = TABLE_insert_row( view, rec, FALSE );
1637 break;
1638
1639 case MSIMODIFY_INSERT_TEMPORARY:
1640 r = table_validate_new( tv, rec );
1641 if (r != ERROR_SUCCESS)
1642 break;
1643 r = TABLE_insert_row( view, rec, TRUE );
1644 break;
1645
1646 case MSIMODIFY_REFRESH:
1647 r = msi_refresh_record( view, rec, row );
1648 break;
1649
1650 case MSIMODIFY_UPDATE:
1651 r = msi_table_update( view, rec, row );
1652 break;
1653
1654 case MSIMODIFY_ASSIGN:
1655 case MSIMODIFY_REPLACE:
1656 case MSIMODIFY_MERGE:
1657 case MSIMODIFY_VALIDATE:
1658 case MSIMODIFY_VALIDATE_FIELD:
1659 case MSIMODIFY_VALIDATE_DELETE:
1660 FIXME("%p %d %p - mode not implemented\n", view, eModifyMode, rec );
1661 r = ERROR_CALL_NOT_IMPLEMENTED;
1662 break;
1663
1664 default:
1665 r = ERROR_INVALID_DATA;
1666 }
1667
1668 return r;
1669 }
1670
1671 static UINT TABLE_delete( struct tagMSIVIEW *view )
1672 {
1673 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1674
1675 TRACE("%p\n", view );
1676
1677 tv->table = NULL;
1678 tv->columns = NULL;
1679
1680 if (tv->order)
1681 {
1682 msi_free( tv->order->reorder );
1683 msi_free( tv->order );
1684 tv->order = NULL;
1685 }
1686
1687 msi_free( tv );
1688
1689 return ERROR_SUCCESS;
1690 }
1691
1692 static UINT TABLE_find_matching_rows( struct tagMSIVIEW *view, UINT col,
1693 UINT val, UINT *row, MSIITERHANDLE *handle )
1694 {
1695 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1696 const MSICOLUMNHASHENTRY *entry;
1697
1698 TRACE("%p, %d, %u, %p\n", view, col, val, *handle);
1699
1700 if( !tv->table )
1701 return ERROR_INVALID_PARAMETER;
1702
1703 if( (col==0) || (col > tv->num_cols) )
1704 return ERROR_INVALID_PARAMETER;
1705
1706 if( !tv->columns[col-1].hash_table )
1707 {
1708 UINT i;
1709 UINT num_rows = tv->table->row_count + tv->table->nonpersistent_row_count;
1710 MSICOLUMNHASHENTRY **hash_table;
1711 MSICOLUMNHASHENTRY *new_entry;
1712
1713 if( tv->columns[col-1].offset >= tv->row_size )
1714 {
1715 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1716 ERR("%p %p\n", tv, tv->columns );
1717 return ERROR_FUNCTION_FAILED;
1718 }
1719
1720 /* allocate contiguous memory for the table and its entries so we
1721 * don't have to do an expensive cleanup */
1722 hash_table = msi_alloc(MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*) +
1723 num_rows * sizeof(MSICOLUMNHASHENTRY));
1724 if (!hash_table)
1725 return ERROR_OUTOFMEMORY;
1726
1727 memset(hash_table, 0, MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*));
1728 tv->columns[col-1].hash_table = hash_table;
1729
1730 new_entry = (MSICOLUMNHASHENTRY *)(hash_table + MSITABLE_HASH_TABLE_SIZE);
1731
1732 for (i = 0; i < num_rows; i++, new_entry++)
1733 {
1734 UINT row_value;
1735
1736 if (view->ops->fetch_int( view, i, col, &row_value ) != ERROR_SUCCESS)
1737 continue;
1738
1739 new_entry->next = NULL;
1740 new_entry->value = row_value;
1741 new_entry->row = i;
1742 if (hash_table[row_value % MSITABLE_HASH_TABLE_SIZE])
1743 {
1744 MSICOLUMNHASHENTRY *prev_entry = hash_table[row_value % MSITABLE_HASH_TABLE_SIZE];
1745 while (prev_entry->next)
1746 prev_entry = prev_entry->next;
1747 prev_entry->next = new_entry;
1748 }
1749 else
1750 hash_table[row_value % MSITABLE_HASH_TABLE_SIZE] = new_entry;
1751 }
1752 }
1753
1754 if( !*handle )
1755 entry = tv->columns[col-1].hash_table[val % MSITABLE_HASH_TABLE_SIZE];
1756 else
1757 entry = (*handle)->next;
1758
1759 while (entry && entry->value != val)
1760 entry = entry->next;
1761
1762 *handle = entry;
1763 if (!entry)
1764 return ERROR_NO_MORE_ITEMS;
1765
1766 *row = entry->row;
1767
1768 return ERROR_SUCCESS;
1769 }
1770
1771 static UINT TABLE_add_ref(struct tagMSIVIEW *view)
1772 {
1773 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1774 UINT i;
1775
1776 TRACE("%p %d\n", view, tv->table->ref_count);
1777
1778 for (i = 0; i < tv->table->col_count; i++)
1779 {
1780 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
1781 InterlockedIncrement(&tv->table->colinfo[i].ref_count);
1782 }
1783
1784 return InterlockedIncrement(&tv->table->ref_count);
1785 }
1786
1787 static UINT TABLE_remove_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number)
1788 {
1789 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1790 MSIRECORD *rec = NULL;
1791 MSIVIEW *columns = NULL;
1792 UINT row, r;
1793
1794 rec = MSI_CreateRecord(2);
1795 if (!rec)
1796 return ERROR_OUTOFMEMORY;
1797
1798 MSI_RecordSetStringW(rec, 1, table);
1799 MSI_RecordSetInteger(rec, 2, number);
1800
1801 r = TABLE_CreateView(tv->db, szColumns, &columns);
1802 if (r != ERROR_SUCCESS)
1803 return r;
1804
1805 r = msi_table_find_row((MSITABLEVIEW *)columns, rec, &row);
1806 if (r != ERROR_SUCCESS)
1807 goto done;
1808
1809 r = TABLE_delete_row(columns, row);
1810 if (r != ERROR_SUCCESS)
1811 goto done;
1812
1813 msi_update_table_columns(tv->db, table);
1814
1815 done:
1816 msiobj_release(&rec->hdr);
1817 if (columns) columns->ops->delete(columns);
1818 return r;
1819 }
1820
1821 static UINT TABLE_release(struct tagMSIVIEW *view)
1822 {
1823 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1824 INT ref = tv->table->ref_count;
1825 UINT i, r;
1826
1827 TRACE("%p %d\n", view, ref);
1828
1829 for (i = 0; i < tv->table->col_count; i++)
1830 {
1831 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
1832 {
1833 ref = InterlockedDecrement(&tv->table->colinfo[i].ref_count);
1834 if (ref == 0)
1835 {
1836 r = TABLE_remove_column(view, tv->table->colinfo[i].tablename,
1837 tv->table->colinfo[i].number);
1838 if (r != ERROR_SUCCESS)
1839 break;
1840 }
1841 }
1842 }
1843
1844 ref = InterlockedDecrement(&tv->table->ref_count);
1845 if (ref == 0)
1846 {
1847 if (!tv->table->row_count)
1848 {
1849 list_remove(&tv->table->entry);
1850 free_table(tv->table);
1851 TABLE_delete(view);
1852 }
1853 }
1854
1855 return ref;
1856 }
1857
1858 static UINT TABLE_add_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number,
1859 LPCWSTR column, UINT type, BOOL hold)
1860 {
1861 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1862 MSITABLE *msitable;
1863 MSIRECORD *rec;
1864 UINT r, i;
1865
1866 rec = MSI_CreateRecord(4);
1867 if (!rec)
1868 return ERROR_OUTOFMEMORY;
1869
1870 MSI_RecordSetStringW(rec, 1, table);
1871 MSI_RecordSetInteger(rec, 2, number);
1872 MSI_RecordSetStringW(rec, 3, column);
1873 MSI_RecordSetInteger(rec, 4, type);
1874
1875 r = TABLE_insert_row(&tv->view, rec, FALSE);
1876 if (r != ERROR_SUCCESS)
1877 goto done;
1878
1879 msi_update_table_columns(tv->db, table);
1880
1881 if (!hold)
1882 goto done;
1883
1884 msitable = find_cached_table(tv->db, table);
1885 for (i = 0; i < msitable->col_count; i++)
1886 {
1887 if (!lstrcmpW(msitable->colinfo[i].colname, column))
1888 {
1889 InterlockedIncrement(&msitable->colinfo[i].ref_count);
1890 break;
1891 }
1892 }
1893
1894 done:
1895 msiobj_release(&rec->hdr);
1896 return r;
1897 }
1898
1899 static UINT order_add_column(struct tagMSIVIEW *view, MSIORDERINFO *order, LPCWSTR name)
1900 {
1901 UINT n, r, count;
1902
1903 r = TABLE_get_dimensions(view, NULL, &count);
1904 if (r != ERROR_SUCCESS)
1905 return r;
1906
1907 if (order->num_cols >= count)
1908 return ERROR_FUNCTION_FAILED;
1909
1910 r = VIEW_find_column(view, name, &n);
1911 if (r != ERROR_SUCCESS)
1912 return r;
1913
1914 order->cols[order->num_cols] = n;
1915 TRACE("Ordering by column %s (%d)\n", debugstr_w(name), n);
1916
1917 order->num_cols++;
1918
1919 return ERROR_SUCCESS;
1920 }
1921
1922 static UINT order_compare(struct tagMSIVIEW *view, MSIORDERINFO *order,
1923 UINT a, UINT b, UINT *swap)
1924 {
1925 UINT r, i, a_val = 0, b_val = 0;
1926
1927 *swap = 0;
1928 for (i = 0; i < order->num_cols; i++)
1929 {
1930 r = TABLE_fetch_int(view, a, order->cols[i], &a_val);
1931 if (r != ERROR_SUCCESS)
1932 return r;
1933
1934 r = TABLE_fetch_int(view, b, order->cols[i], &b_val);
1935 if (r != ERROR_SUCCESS)
1936 return r;
1937
1938 if (a_val != b_val)
1939 {
1940 if (a_val > b_val)
1941 *swap = 1;
1942 break;
1943 }
1944 }
1945
1946 return ERROR_SUCCESS;
1947 }
1948
1949 static UINT order_mergesort(struct tagMSIVIEW *view, MSIORDERINFO *order,
1950 UINT left, UINT right)
1951 {
1952 UINT r, i, j, temp;
1953 UINT swap = 0, center = (left + right) / 2;
1954 UINT *array = order->reorder;
1955
1956 if (left == right)
1957 return ERROR_SUCCESS;
1958
1959 /* sort the left half */
1960 r = order_mergesort(view, order, left, center);
1961 if (r != ERROR_SUCCESS)
1962 return r;
1963
1964 /* sort the right half */
1965 r = order_mergesort(view, order, center + 1, right);
1966 if (r != ERROR_SUCCESS)
1967 return r;
1968
1969 for (i = left, j = center + 1; (i <= center) && (j <= right); i++)
1970 {
1971 r = order_compare(view, order, array[i], array[j], &swap);
1972 if (r != ERROR_SUCCESS)
1973 return r;
1974
1975 if (swap)
1976 {
1977 temp = array[j];
1978 memmove(&array[i + 1], &array[i], (j - i) * sizeof(UINT));
1979 array[i] = temp;
1980 j++;
1981 center++;
1982 }
1983 }
1984
1985 return ERROR_SUCCESS;
1986 }
1987
1988 static UINT order_verify(struct tagMSIVIEW *view, MSIORDERINFO *order, UINT num_rows)
1989 {
1990 UINT i, swap, r;
1991
1992 for (i = 1; i < num_rows; i++)
1993 {
1994 r = order_compare(view, order, order->reorder[i - 1],
1995 order->reorder[i], &swap);
1996 if (r != ERROR_SUCCESS)
1997 return r;
1998
1999 if (!swap)
2000 continue;
2001
2002 ERR("Bad order! %d\n", i);
2003 return ERROR_FUNCTION_FAILED;
2004 }
2005
2006 return ERROR_SUCCESS;
2007 }
2008
2009 static UINT TABLE_sort(struct tagMSIVIEW *view, column_info *columns)
2010 {
2011 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
2012 MSIORDERINFO *order;
2013 column_info *ptr;
2014 UINT r, i;
2015 UINT rows, cols;
2016
2017 TRACE("sorting table %s\n", debugstr_w(tv->name));
2018
2019 r = TABLE_get_dimensions(view, &rows, &cols);
2020 if (r != ERROR_SUCCESS)
2021 return r;
2022
2023 if (rows == 0)
2024 return ERROR_SUCCESS;
2025
2026 order = msi_alloc_zero(sizeof(MSIORDERINFO) + sizeof(UINT) * cols);
2027 if (!order)
2028 return ERROR_OUTOFMEMORY;
2029
2030 for (ptr = columns; ptr; ptr = ptr->next)
2031 order_add_column(view, order, ptr->column);
2032
2033 order->reorder = msi_alloc(rows * sizeof(UINT));
2034 if (!order->reorder)
2035 return ERROR_OUTOFMEMORY;
2036
2037 for (i = 0; i < rows; i++)
2038 order->reorder[i] = i;
2039
2040 r = order_mergesort(view, order, 0, rows - 1);
2041 if (r != ERROR_SUCCESS)
2042 return r;
2043
2044 r = order_verify(view, order, rows);
2045 if (r != ERROR_SUCCESS)
2046 return r;
2047
2048 tv->order = order;
2049
2050 return ERROR_SUCCESS;
2051 }
2052
2053 static UINT TABLE_drop(struct tagMSIVIEW *view)
2054 {
2055 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
2056 MSIVIEW *tables = NULL;
2057 MSIRECORD *rec = NULL;
2058 UINT i, r, row;
2059
2060 TRACE("dropping table %s\n", debugstr_w(tv->name));
2061
2062 for (i = 0; i < tv->table->col_count; i++)
2063 {
2064 r = TABLE_remove_column(view, tv->table->colinfo[i].tablename,
2065 tv->table->colinfo[i].number);
2066 if (r != ERROR_SUCCESS)
2067 return r;
2068 }
2069
2070 rec = MSI_CreateRecord(1);
2071 if (!rec)
2072 return ERROR_OUTOFMEMORY;
2073
2074 MSI_RecordSetStringW(rec, 1, tv->name);
2075
2076 r = TABLE_CreateView(tv->db, szTables, &tables);
2077 if (r != ERROR_SUCCESS)
2078 return r;
2079
2080 r = msi_table_find_row((MSITABLEVIEW *)tables, rec, &row);
2081 if (r != ERROR_SUCCESS)
2082 goto done;
2083
2084 r = TABLE_delete_row(tables, row);
2085 if (r != ERROR_SUCCESS)
2086 goto done;
2087
2088 list_remove(&tv->table->entry);
2089 free_table(tv->table);
2090 TABLE_delete(view);
2091
2092 done:
2093 msiobj_release(&rec->hdr);
2094 tables->ops->delete(tables);
2095
2096 return r;
2097 }
2098
2099 static const MSIVIEWOPS table_ops =
2100 {
2101 TABLE_fetch_int,
2102 TABLE_fetch_stream,
2103 TABLE_get_row,
2104 TABLE_set_row,
2105 TABLE_insert_row,
2106 TABLE_delete_row,
2107 TABLE_execute,
2108 TABLE_close,
2109 TABLE_get_dimensions,
2110 TABLE_get_column_info,
2111 TABLE_modify,
2112 TABLE_delete,
2113 TABLE_find_matching_rows,
2114 TABLE_add_ref,
2115 TABLE_release,
2116 TABLE_add_column,
2117 TABLE_remove_column,
2118 TABLE_sort,
2119 TABLE_drop,
2120 };
2121
2122 UINT TABLE_CreateView( MSIDATABASE *db, LPCWSTR name, MSIVIEW **view )
2123 {
2124 MSITABLEVIEW *tv ;
2125 UINT r, sz;
2126
2127 static const WCHAR Streams[] = {'_','S','t','r','e','a','m','s',0};
2128 static const WCHAR Storages[] = {'_','S','t','o','r','a','g','e','s',0};
2129
2130 TRACE("%p %s %p\n", db, debugstr_w(name), view );
2131
2132 if ( !lstrcmpW( name, Streams ) )
2133 return STREAMS_CreateView( db, view );
2134 else if ( !lstrcmpW( name, Storages ) )
2135 return STORAGES_CreateView( db, view );
2136
2137 sz = sizeof *tv + lstrlenW(name)*sizeof name[0] ;
2138 tv = msi_alloc_zero( sz );
2139 if( !tv )
2140 return ERROR_FUNCTION_FAILED;
2141
2142 r = get_table( db, name, &tv->table );
2143 if( r != ERROR_SUCCESS )
2144 {
2145 msi_free( tv );
2146 WARN("table not found\n");
2147 return r;
2148 }
2149
2150 TRACE("table %p found with %d columns\n", tv->table, tv->table->col_count);
2151
2152 /* fill the structure */
2153 tv->view.ops = &table_ops;
2154 tv->db = db;
2155 tv->columns = tv->table->colinfo;
2156 tv->num_cols = tv->table->col_count;
2157 tv->row_size = msi_table_get_row_size( db, tv->table->colinfo, tv->table->col_count );
2158
2159 TRACE("%s one row is %d bytes\n", debugstr_w(name), tv->row_size );
2160
2161 *view = (MSIVIEW*) tv;
2162 lstrcpyW( tv->name, name );
2163
2164 return ERROR_SUCCESS;
2165 }
2166
2167 UINT MSI_CommitTables( MSIDATABASE *db )
2168 {
2169 UINT r;
2170 MSITABLE *table = NULL;
2171
2172 TRACE("%p\n",db);
2173
2174 r = msi_save_string_table( db->strings, db->storage );
2175 if( r != ERROR_SUCCESS )
2176 {
2177 WARN("failed to save string table r=%08x\n",r);
2178 return r;
2179 }
2180
2181 LIST_FOR_EACH_ENTRY( table, &db->tables, MSITABLE, entry )
2182 {
2183 r = save_table( db, table );
2184 if( r != ERROR_SUCCESS )
2185 {
2186 WARN("failed to save table %s (r=%08x)\n",
2187 debugstr_w(table->name), r);
2188 return r;
2189 }
2190 }
2191
2192 /* force everything to reload next time */
2193 free_cached_tables( db );
2194
2195 return ERROR_SUCCESS;
2196 }
2197
2198 MSICONDITION MSI_DatabaseIsTablePersistent( MSIDATABASE *db, LPCWSTR table )
2199 {
2200 MSITABLE *t;
2201 UINT r;
2202
2203 TRACE("%p %s\n", db, debugstr_w(table));
2204
2205 if (!table)
2206 return MSICONDITION_ERROR;
2207
2208 r = get_table( db, table, &t );
2209 if (r != ERROR_SUCCESS)
2210 return MSICONDITION_NONE;
2211
2212 if (t->persistent)
2213 return MSICONDITION_TRUE;
2214 else
2215 return MSICONDITION_FALSE;
2216 }
2217
2218 static UINT read_raw_int(const BYTE *data, UINT col, UINT bytes)
2219 {
2220 UINT ret = 0, i;
2221
2222 for (i = 0; i < bytes; i++)
2223 ret += (data[col + i] << i * 8);
2224
2225 return ret;
2226 }
2227
2228 static MSIRECORD *msi_get_transform_record( const MSITABLEVIEW *tv, const string_table *st,
2229 const BYTE *rawdata, UINT bytes_per_strref )
2230 {
2231 UINT i, val, ofs = 0;
2232 USHORT mask;
2233 MSICOLUMNINFO *columns = tv->columns;
2234 MSIRECORD *rec;
2235
2236 mask = rawdata[0] | (rawdata[1] << 8);
2237 rawdata += 2;
2238
2239 rec = MSI_CreateRecord( tv->num_cols );
2240 if( !rec )
2241 return rec;
2242
2243 TRACE("row ->\n");
2244 for( i=0; i<tv->num_cols; i++ )
2245 {
2246 if ( (mask&1) && (i>=(mask>>8)) )
2247 break;
2248 /* all keys must be present */
2249 if ( (~mask&1) && (~columns[i].type & MSITYPE_KEY) && ((1<<i) & ~mask) )
2250 continue;
2251
2252 if( (columns[i].type & MSITYPE_STRING) &&
2253 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2254 {
2255 LPCWSTR sval;
2256
2257 val = read_raw_int(rawdata, ofs, bytes_per_strref);
2258 sval = msi_string_lookup_id( st, val );
2259 MSI_RecordSetStringW( rec, i+1, sval );
2260 TRACE(" field %d [%s]\n", i+1, debugstr_w(sval));
2261 ofs += bytes_per_strref;
2262 }
2263 else
2264 {
2265 UINT n = bytes_per_column( tv->db, &columns[i] );
2266 switch( n )
2267 {
2268 case 2:
2269 val = read_raw_int(rawdata, ofs, n);
2270 if (val)
2271 MSI_RecordSetInteger( rec, i+1, val^0x8000 );
2272 TRACE(" field %d [0x%04x]\n", i+1, val );
2273 break;
2274 case 4:
2275 val = read_raw_int(rawdata, ofs, n);
2276 if (val)
2277 MSI_RecordSetInteger( rec, i+1, val^0x80000000 );
2278 TRACE(" field %d [0x%08x]\n", i+1, val );
2279 break;
2280 default:
2281 ERR("oops - unknown column width %d\n", n);
2282 break;
2283 }
2284 ofs += n;
2285 }
2286 }
2287 return rec;
2288 }
2289
2290 static void dump_record( MSIRECORD *rec )
2291 {
2292 UINT i, n;
2293
2294 n = MSI_RecordGetFieldCount( rec );
2295 for( i=1; i<=n; i++ )
2296 {
2297 LPCWSTR sval = MSI_RecordGetString( rec, i );
2298
2299 if( MSI_RecordIsNull( rec, i ) )
2300 TRACE("row -> []\n");
2301 else if( (sval = MSI_RecordGetString( rec, i )) )
2302 TRACE("row -> [%s]\n", debugstr_w(sval));
2303 else
2304 TRACE("row -> [0x%08x]\n", MSI_RecordGetInteger( rec, i ) );
2305 }
2306 }
2307
2308 static void dump_table( const string_table *st, const USHORT *rawdata, UINT rawsize )
2309 {
2310 LPCWSTR sval;
2311 UINT i;
2312
2313 for( i=0; i<(rawsize/2); i++ )
2314 {
2315 sval = msi_string_lookup_id( st, rawdata[i] );
2316 MESSAGE(" %04x %s\n", rawdata[i], debugstr_w(sval) );
2317 }
2318 }
2319
2320 static UINT* msi_record_to_row( const MSITABLEVIEW *tv, MSIRECORD *rec )
2321 {
2322 LPCWSTR str;
2323 UINT i, r, *data;
2324
2325 data = msi_alloc( tv->num_cols *sizeof (UINT) );
2326 for( i=0; i<tv->num_cols; i++ )
2327 {
2328 data[i] = 0;
2329
2330 if ( ~tv->columns[i].type & MSITYPE_KEY )
2331 continue;
2332
2333 /* turn the transform column value into a row value */
2334 if ( ( tv->columns[i].type & MSITYPE_STRING ) &&
2335 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2336 {
2337 str = MSI_RecordGetString( rec, i+1 );
2338 r = msi_string2idW( tv->db->strings, str, &data[i] );
2339
2340 /* if there's no matching string in the string table,
2341 these keys can't match any record, so fail now. */
2342 if( ERROR_SUCCESS != r )
2343 {
2344 msi_free( data );
2345 return NULL;
2346 }
2347 }
2348 else
2349 {
2350 data[i] = MSI_RecordGetInteger( rec, i+1 );
2351 if ((tv->columns[i].type&0xff) == 2)
2352 data[i] += 0x8000;
2353 else
2354 data[i] += 0x80000000;
2355 }
2356 }
2357 return data;
2358 }
2359
2360 static UINT msi_row_matches( MSITABLEVIEW *tv, UINT row, const UINT *data )
2361 {
2362 UINT i, r, x, ret = ERROR_FUNCTION_FAILED;
2363
2364 for( i=0; i<tv->num_cols; i++ )
2365 {
2366 if ( ~tv->columns[i].type & MSITYPE_KEY )
2367 continue;
2368
2369 /* turn the transform column value into a row value */
2370 r = TABLE_fetch_int( &tv->view, row, i+1, &x );
2371 if ( r != ERROR_SUCCESS )
2372 {
2373 ERR("TABLE_fetch_int shouldn't fail here\n");
2374 break;
2375 }
2376
2377 /* if this key matches, move to the next column */
2378 if ( x != data[i] )
2379 {
2380 ret = ERROR_FUNCTION_FAILED;
2381 break;
2382 }
2383
2384 ret = ERROR_SUCCESS;
2385 }
2386
2387 return ret;
2388 }
2389
2390 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row )
2391 {
2392 UINT i, r = ERROR_FUNCTION_FAILED, *data;
2393
2394 data = msi_record_to_row( tv, rec );
2395 if( !data )
2396 return r;
2397 for( i = 0; i < tv->table->row_count + tv->table->nonpersistent_row_count; i++ )
2398 {
2399 r = msi_row_matches( tv, i, data );
2400 if( r == ERROR_SUCCESS )
2401 {
2402 *row = i;
2403 break;
2404 }
2405 }
2406 msi_free( data );
2407 return r;
2408 }
2409
2410 typedef struct
2411 {
2412 struct list entry;
2413 LPWSTR name;
2414 } TRANSFORMDATA;
2415
2416 static UINT msi_table_load_transform( MSIDATABASE *db, IStorage *stg,
2417 string_table *st, TRANSFORMDATA *transform,
2418 UINT bytes_per_strref )
2419 {
2420 UINT rawsize = 0;
2421 BYTE *rawdata = NULL;
2422 MSITABLEVIEW *tv = NULL;
2423 UINT r, n, sz, i, mask;
2424 MSIRECORD *rec = NULL;
2425 UINT colcol = 0;
2426 WCHAR coltable[32];
2427 LPWSTR name;
2428
2429 if (!transform)
2430 return ERROR_SUCCESS;
2431
2432 name = transform->name;
2433
2434 coltable[0] = 0;
2435 TRACE("%p %p %p %s\n", db, stg, st, debugstr_w(name) );
2436
2437 /* read the transform data */
2438 read_stream_data( stg, name, TRUE, &rawdata, &rawsize );
2439 if ( !rawdata )
2440 {
2441 TRACE("table %s empty\n", debugstr_w(name) );
2442 return ERROR_INVALID_TABLE;
2443 }
2444
2445 /* create a table view */
2446 r = TABLE_CreateView( db, name, (MSIVIEW**) &tv );
2447 if( r != ERROR_SUCCESS )
2448 goto err;
2449
2450 r = tv->view.ops->execute( &tv->view, NULL );
2451 if( r != ERROR_SUCCESS )
2452 goto err;
2453
2454 TRACE("name = %s columns = %u row_size = %u raw size = %u\n",
2455 debugstr_w(name), tv->num_cols, tv->row_size, rawsize );
2456
2457 /* interpret the data */
2458 r = ERROR_SUCCESS;
2459 for( n=0; n < rawsize; )
2460 {
2461 mask = rawdata[n] | (rawdata[n+1] << 8);
2462
2463 if (mask&1)
2464 {
2465 /*
2466 * if the low bit is set, columns are continuous and
2467 * the number of columns is specified in the high byte
2468 */
2469 sz = 2;
2470 for( i=0; i<tv->num_cols; i++ )
2471 {
2472 if( (tv->columns[i].type & MSITYPE_STRING) &&
2473 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2474 sz += bytes_per_strref;
2475 else
2476 sz += bytes_per_column( tv->db, &tv->columns[i] );
2477 }
2478 }
2479 else
2480 {
2481 /*
2482 * If the low bit is not set, mask is a bitmask.
2483 * Excepting for key fields, which are always present,
2484 * each bit indicates that a field is present in the transform record.
2485 *
2486 * mask == 0 is a special case ... only the keys will be present
2487 * and it means that this row should be deleted.
2488 */
2489 sz = 2;
2490 for( i=0; i<tv->num_cols; i++ )
2491 {
2492 if( (tv->columns[i].type & MSITYPE_KEY) || ((1<<i)&mask))
2493 {
2494 if( (tv->columns[i].type & MSITYPE_STRING) &&
2495 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2496 sz += bytes_per_strref;
2497 else
2498 sz += bytes_per_column( tv->db, &tv->columns[i] );
2499 }
2500 }
2501 }
2502
2503 /* check we didn't run of the end of the table */
2504 if ( (n+sz) > rawsize )
2505 {
2506 ERR("borked.\n");
2507 dump_table( st, (USHORT *)rawdata, rawsize );
2508 break;
2509 }
2510
2511 rec = msi_get_transform_record( tv, st, &rawdata[n], bytes_per_strref );
2512 if (rec)
2513 {
2514 if ( mask & 1 )
2515 {
2516 WCHAR table[32];
2517 DWORD sz = 32;
2518 UINT number = MSI_NULL_INTEGER;
2519
2520 TRACE("inserting record\n");
2521
2522 if (!lstrcmpW(name, szColumns))
2523 {
2524 MSI_RecordGetStringW( rec, 1, table, &sz );
2525 number = MSI_RecordGetInteger( rec, 2 );
2526
2527 /*
2528 * Native msi seems writes nul into the Number (2nd) column of
2529 * the _Columns table, only when the columns are from a new table
2530 */
2531 if ( number == MSI_NULL_INTEGER )
2532 {
2533 /* reset the column number on a new table */
2534 if ( lstrcmpW(coltable, table) )
2535 {
2536 colcol = 0;
2537 lstrcpyW( coltable, table );
2538 }
2539
2540 /* fix nul column numbers */
2541 MSI_RecordSetInteger( rec, 2, ++colcol );
2542 }
2543 }
2544
2545 r = TABLE_insert_row( &tv->view, rec, FALSE );
2546 if (r != ERROR_SUCCESS)
2547 ERR("insert row failed\n");
2548
2549 if ( number != MSI_NULL_INTEGER && !lstrcmpW(name, szColumns) )
2550 msi_update_table_columns( db, table );
2551 }
2552 else
2553 {
2554 UINT row = 0;
2555
2556 r = msi_table_find_row( tv, rec, &row );
2557 if (r != ERROR_SUCCESS)
2558 ERR("no matching row to transform\n");
2559 else if ( mask )
2560 {
2561 TRACE("modifying row [%d]:\n", row);
2562 TABLE_set_row( &tv->view, row, rec, mask );
2563 }
2564 else
2565 {
2566 TRACE("deleting row [%d]:\n", row);
2567 TABLE_delete_row( &tv->view, row );
2568 }
2569 }
2570 if( TRACE_ON(msidb) ) dump_record( rec );
2571 msiobj_release( &rec->hdr );
2572 }
2573
2574 n += sz;
2575 }
2576
2577 err:
2578 /* no need to free the table, it's associated with the database */
2579 msi_free( rawdata );
2580 if( tv )
2581 tv->view.ops->delete( &tv->view );
2582
2583 return ERROR_SUCCESS;
2584 }
2585
2586 /*
2587 * msi_table_apply_transform
2588 *
2589 * Enumerate the table transforms in a transform storage and apply each one.
2590 */
2591 UINT msi_table_apply_transform( MSIDATABASE *db, IStorage *stg )
2592 {
2593 struct list transforms;
2594 IEnumSTATSTG *stgenum = NULL;
2595 TRANSFORMDATA *transform;
2596 TRANSFORMDATA *tables = NULL, *columns = NULL;
2597 HRESULT r;
2598 STATSTG stat;
2599 string_table *strings;
2600 UINT ret = ERROR_FUNCTION_FAILED;
2601 UINT bytes_per_strref;
2602
2603 TRACE("%p %p\n", db, stg );
2604
2605 strings = msi_load_string_table( stg, &bytes_per_strref );
2606 if( !strings )
2607 goto end;
2608
2609 r = IStorage_EnumElements( stg, 0, NULL, 0, &stgenum );
2610 if( FAILED( r ) )
2611 goto end;
2612
2613 list_init(&transforms);
2614
2615 while ( TRUE )
2616 {
2617 MSITABLEVIEW *tv = NULL;
2618 WCHAR name[0x40];
2619 ULONG count = 0;
2620
2621 r = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
2622 if ( FAILED( r ) || !count )
2623 break;
2624
2625 decode_streamname( stat.pwcsName, name );
2626 CoTaskMemFree( stat.pwcsName );
2627 if ( name[0] != 0x4840 )
2628 continue;
2629
2630 if ( !lstrcmpW( name+1, szStringPool ) ||
2631 !lstrcmpW( name+1, szStringData ) )
2632 continue;
2633
2634 transform = msi_alloc_zero( sizeof(TRANSFORMDATA) );
2635 if ( !transform )
2636 break;
2637
2638 list_add_tail( &transforms, &transform->entry );
2639
2640 transform->name = strdupW( name + 1 );
2641
2642 if ( !lstrcmpW( transform->name, szTables ) )
2643 tables = transform;
2644 else if (!lstrcmpW( transform->name, szColumns ) )
2645 columns = transform;
2646
2647 TRACE("transform contains stream %s\n", debugstr_w(name));
2648
2649 /* load the table */
2650 r = TABLE_CreateView( db, transform->name, (MSIVIEW**) &tv );
2651 if( r != ERROR_SUCCESS )
2652 continue;
2653
2654 r = tv->view.ops->execute( &tv->view, NULL );
2655 if( r != ERROR_SUCCESS )
2656 {
2657 tv->view.ops->delete( &tv->view );
2658 continue;
2659 }
2660
2661 tv->view.ops->delete( &tv->view );
2662 }
2663
2664 /*
2665 * Apply _Tables and _Columns transforms first so that
2666 * the table metadata is correct, and empty tables exist.
2667 */
2668 ret = msi_table_load_transform( db, stg, strings, tables, bytes_per_strref );
2669 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2670 goto end;
2671
2672 ret = msi_table_load_transform( db, stg, strings, columns, bytes_per_strref );
2673 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2674 goto end;
2675
2676 ret = ERROR_SUCCESS;
2677
2678 while ( !list_empty( &transforms ) )
2679 {
2680 transform = LIST_ENTRY( list_head( &transforms ), TRANSFORMDATA, entry );
2681
2682 if ( lstrcmpW( transform->name, szColumns ) &&
2683 lstrcmpW( transform->name, szTables ) &&
2684 ret == ERROR_SUCCESS )
2685 {
2686 ret = msi_table_load_transform( db, stg, strings, transform, bytes_per_strref );
2687 }
2688
2689 list_remove( &transform->entry );
2690 msi_free( transform->name );
2691 msi_free( transform );
2692 }
2693
2694 if ( ret == ERROR_SUCCESS )
2695 append_storage_to_db( db, stg );
2696
2697 end:
2698 if ( stgenum )
2699 IEnumSTATSTG_Release( stgenum );
2700 if ( strings )
2701 msi_destroy_stringtable( strings );
2702
2703 return ret;
2704 }
2705
2706 void append_storage_to_db( MSIDATABASE *db, IStorage *stg )
2707 {
2708 MSITRANSFORM *t;
2709
2710 t = msi_alloc( sizeof *t );
2711 t->stg = stg;
2712 IStorage_AddRef( stg );
2713 list_add_tail( &db->transforms, &t->entry );
2714 }
2715
2716 void msi_free_transforms( MSIDATABASE *db )
2717 {
2718 while( !list_empty( &db->transforms ) )
2719 {
2720 MSITRANSFORM *t = LIST_ENTRY( list_head( &db->transforms ),
2721 MSITRANSFORM, entry );
2722 list_remove( &t->entry );
2723 IStorage_Release( t->stg );
2724 msi_free( t );
2725 }
2726 }
useful hacks and other patches not (yet) suitable for mainline