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mscoree: Implement IMetahostPolicy GetRequestedRuntime.
[wine/wine-gecko.git] / dlls / msi / table.c
blobf67981c7f4680fc417b110d9249ca25f037ffa1f
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
46 typedef struct tagMSICOLUMNHASHENTRY
47 {
48 struct tagMSICOLUMNHASHENTRY *next;
49 UINT value;
50 UINT row;
51 } MSICOLUMNHASHENTRY;
52
53 typedef struct tagMSICOLUMNINFO
54 {
55 LPCWSTR tablename;
56 UINT number;
57 LPCWSTR colname;
58 UINT type;
59 UINT offset;
60 INT ref_count;
61 BOOL temporary;
62 MSICOLUMNHASHENTRY **hash_table;
63 } MSICOLUMNINFO;
64
65 struct tagMSITABLE
66 {
67 BYTE **data;
68 BOOL *data_persistent;
69 UINT row_count;
70 struct list entry;
71 MSICOLUMNINFO *colinfo;
72 UINT col_count;
73 MSICONDITION persistent;
74 INT ref_count;
75 WCHAR name[1];
76 };
77
78 /* information for default tables */
79 static const WCHAR szTables[] = {'_','T','a','b','l','e','s',0};
80 static const WCHAR szTable[] = {'T','a','b','l','e',0};
81 static const WCHAR szColumns[] = {'_','C','o','l','u','m','n','s',0};
82 static const WCHAR szNumber[] = {'N','u','m','b','e','r',0};
83 static const WCHAR szType[] = {'T','y','p','e',0};
84
85 static const MSICOLUMNINFO _Columns_cols[4] = {
86 { szColumns, 1, szTable, MSITYPE_VALID | MSITYPE_STRING | MSITYPE_KEY | 64, 0, 0, 0, NULL },
87 { szColumns, 2, szNumber, MSITYPE_VALID | MSITYPE_KEY | 2, 2, 0, 0, NULL },
88 { szColumns, 3, szName, MSITYPE_VALID | MSITYPE_STRING | 64, 4, 0, 0, NULL },
89 { szColumns, 4, szType, MSITYPE_VALID | 2, 6, 0, 0, NULL },
90 };
91
92 static const MSICOLUMNINFO _Tables_cols[1] = {
93 { szTables, 1, szName, MSITYPE_VALID | MSITYPE_STRING | MSITYPE_KEY | 64, 0, 0, 0, NULL },
94 };
95
96 #define MAX_STREAM_NAME 0x1f
97
98 static inline UINT bytes_per_column( MSIDATABASE *db, const MSICOLUMNINFO *col, UINT bytes_per_strref )
99 {
100 if( MSITYPE_IS_BINARY(col->type) )
101 return 2;
102
103 if( col->type & MSITYPE_STRING )
104 return bytes_per_strref;
105
106 if( (col->type & 0xff) <= 2)
107 return 2;
108
109 if( (col->type & 0xff) != 4 )
110 ERR("Invalid column size!\n");
111
112 return 4;
113 }
114
115 static int utf2mime(int x)
116 {
117 if( (x>='0') && (x<='9') )
118 return x-'0';
119 if( (x>='A') && (x<='Z') )
120 return x-'A'+10;
121 if( (x>='a') && (x<='z') )
122 return x-'a'+10+26;
123 if( x=='.' )
124 return 10+26+26;
125 if( x=='_' )
126 return 10+26+26+1;
127 return -1;
128 }
129
130 LPWSTR encode_streamname(BOOL bTable, LPCWSTR in)
131 {
132 DWORD count = MAX_STREAM_NAME;
133 DWORD ch, next;
134 LPWSTR out, p;
135
136 if( !bTable )
137 count = lstrlenW( in )+2;
138 if (!(out = msi_alloc( count*sizeof(WCHAR) ))) return NULL;
139 p = out;
140
141 if( bTable )
142 {
143 *p++ = 0x4840;
144 count --;
145 }
146 while( count -- )
147 {
148 ch = *in++;
149 if( !ch )
150 {
151 *p = ch;
152 return out;
153 }
154 if( ( ch < 0x80 ) && ( utf2mime(ch) >= 0 ) )
155 {
156 ch = utf2mime(ch) + 0x4800;
157 next = *in;
158 if( next && (next<0x80) )
159 {
160 next = utf2mime(next);
161 if( next != -1 )
162 {
163 next += 0x3ffffc0;
164 ch += (next<<6);
165 in++;
166 }
167 }
168 }
169 *p++ = ch;
170 }
171 ERR("Failed to encode stream name (%s)\n",debugstr_w(in));
172 msi_free( out );
173 return NULL;
174 }
175
176 static int mime2utf(int x)
177 {
178 if( x<10 )
179 return x + '0';
180 if( x<(10+26))
181 return x - 10 + 'A';
182 if( x<(10+26+26))
183 return x - 10 - 26 + 'a';
184 if( x == (10+26+26) )
185 return '.';
186 return '_';
187 }
188
189 BOOL decode_streamname(LPCWSTR in, LPWSTR out)
190 {
191 WCHAR ch;
192 DWORD count = 0;
193
194 while ( (ch = *in++) )
195 {
196 if( (ch >= 0x3800 ) && (ch < 0x4840 ) )
197 {
198 if( ch >= 0x4800 )
199 ch = mime2utf(ch-0x4800);
200 else
201 {
202 ch -= 0x3800;
203 *out++ = mime2utf(ch&0x3f);
204 count++;
205 ch = mime2utf((ch>>6)&0x3f);
206 }
207 }
208 *out++ = ch;
209 count++;
210 }
211 *out = 0;
212 return count;
213 }
214
215 void enum_stream_names( IStorage *stg )
216 {
217 IEnumSTATSTG *stgenum = NULL;
218 HRESULT r;
219 STATSTG stat;
220 ULONG n, count;
221 WCHAR name[0x40];
222
223 r = IStorage_EnumElements( stg, 0, NULL, 0, &stgenum );
224 if( FAILED( r ) )
225 return;
226
227 n = 0;
228 while( 1 )
229 {
230 count = 0;
231 r = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
232 if( FAILED( r ) || !count )
233 break;
234 decode_streamname( stat.pwcsName, name );
235 TRACE("stream %2d -> %s %s\n", n,
236 debugstr_w(stat.pwcsName), debugstr_w(name) );
237 CoTaskMemFree( stat.pwcsName );
238 n++;
239 }
240
241 IEnumSTATSTG_Release( stgenum );
242 }
243
244 UINT read_stream_data( IStorage *stg, LPCWSTR stname, BOOL table,
245 BYTE **pdata, UINT *psz )
246 {
247 HRESULT r;
248 UINT ret = ERROR_FUNCTION_FAILED;
249 VOID *data;
250 ULONG sz, count;
251 IStream *stm = NULL;
252 STATSTG stat;
253 LPWSTR encname;
254
255 encname = encode_streamname(table, stname);
256
257 TRACE("%s -> %s\n",debugstr_w(stname),debugstr_w(encname));
258
259 r = IStorage_OpenStream(stg, encname, NULL,
260 STGM_READ | STGM_SHARE_EXCLUSIVE, 0, &stm);
261 msi_free( encname );
262 if( FAILED( r ) )
263 {
264 WARN("open stream failed r = %08x - empty table?\n", r);
265 return ret;
266 }
267
268 r = IStream_Stat(stm, &stat, STATFLAG_NONAME );
269 if( FAILED( r ) )
270 {
271 WARN("open stream failed r = %08x!\n", r);
272 goto end;
273 }
274
275 if( stat.cbSize.QuadPart >> 32 )
276 {
277 WARN("Too big!\n");
278 goto end;
279 }
280
281 sz = stat.cbSize.QuadPart;
282 data = msi_alloc( sz );
283 if( !data )
284 {
285 WARN("couldn't allocate memory r=%08x!\n", r);
286 ret = ERROR_NOT_ENOUGH_MEMORY;
287 goto end;
288 }
289
290 r = IStream_Read(stm, data, sz, &count );
291 if( FAILED( r ) || ( count != sz ) )
292 {
293 msi_free( data );
294 WARN("read stream failed r = %08x!\n", r);
295 goto end;
296 }
297
298 *pdata = data;
299 *psz = sz;
300 ret = ERROR_SUCCESS;
301
302 end:
303 IStream_Release( stm );
304
305 return ret;
306 }
307
308 UINT write_stream_data( IStorage *stg, LPCWSTR stname,
309 LPCVOID data, UINT sz, BOOL bTable )
310 {
311 HRESULT r;
312 UINT ret = ERROR_FUNCTION_FAILED;
313 ULONG count;
314 IStream *stm = NULL;
315 ULARGE_INTEGER size;
316 LARGE_INTEGER pos;
317 LPWSTR encname;
318
319 encname = encode_streamname(bTable, stname );
320 r = IStorage_OpenStream( stg, encname, NULL,
321 STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, &stm);
322 if( FAILED(r) )
323 {
324 r = IStorage_CreateStream( stg, encname,
325 STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, 0, &stm);
326 }
327 msi_free( encname );
328 if( FAILED( r ) )
329 {
330 WARN("open stream failed r = %08x\n", r);
331 return ret;
332 }
333
334 size.QuadPart = sz;
335 r = IStream_SetSize( stm, size );
336 if( FAILED( r ) )
337 {
338 WARN("Failed to SetSize\n");
339 goto end;
340 }
341
342 pos.QuadPart = 0;
343 r = IStream_Seek( stm, pos, STREAM_SEEK_SET, NULL );
344 if( FAILED( r ) )
345 {
346 WARN("Failed to Seek\n");
347 goto end;
348 }
349
350 if (sz)
351 {
352 r = IStream_Write(stm, data, sz, &count );
353 if( FAILED( r ) || ( count != sz ) )
354 {
355 WARN("Failed to Write\n");
356 goto end;
357 }
358 }
359
360 ret = ERROR_SUCCESS;
361
362 end:
363 IStream_Release( stm );
364
365 return ret;
366 }
367
368 static void msi_free_colinfo( MSICOLUMNINFO *colinfo, UINT count )
369 {
370 UINT i;
371 for (i = 0; i < count; i++) msi_free( colinfo[i].hash_table );
372 }
373
374 static void free_table( MSITABLE *table )
375 {
376 UINT i;
377 for( i=0; i<table->row_count; i++ )
378 msi_free( table->data[i] );
379 msi_free( table->data );
380 msi_free( table->data_persistent );
381 msi_free_colinfo( table->colinfo, table->col_count );
382 msi_free( table->colinfo );
383 msi_free( table );
384 }
385
386 static UINT msi_table_get_row_size( MSIDATABASE *db, const MSICOLUMNINFO *cols, UINT count, UINT bytes_per_strref )
387 {
388 const MSICOLUMNINFO *last_col;
389
390 if (!count)
391 return 0;
392
393 if (bytes_per_strref != LONG_STR_BYTES)
394 {
395 UINT i, size = 0;
396 for (i = 0; i < count; i++) size += bytes_per_column( db, &cols[i], bytes_per_strref );
397 return size;
398 }
399 last_col = &cols[count - 1];
400 return last_col->offset + bytes_per_column( db, last_col, bytes_per_strref );
401 }
402
403 /* add this table to the list of cached tables in the database */
404 static UINT read_table_from_storage( MSIDATABASE *db, MSITABLE *t, IStorage *stg )
405 {
406 BYTE *rawdata = NULL;
407 UINT rawsize = 0, i, j, row_size, row_size_mem;
408
409 TRACE("%s\n",debugstr_w(t->name));
410
411 row_size = msi_table_get_row_size( db, t->colinfo, t->col_count, db->bytes_per_strref );
412 row_size_mem = msi_table_get_row_size( db, t->colinfo, t->col_count, LONG_STR_BYTES );
413
414 /* if we can't read the table, just assume that it's empty */
415 read_stream_data( stg, t->name, TRUE, &rawdata, &rawsize );
416 if( !rawdata )
417 return ERROR_SUCCESS;
418
419 TRACE("Read %d bytes\n", rawsize );
420
421 if( rawsize % row_size )
422 {
423 WARN("Table size is invalid %d/%d\n", rawsize, row_size );
424 goto err;
425 }
426
427 t->row_count = rawsize / row_size;
428 t->data = msi_alloc_zero( t->row_count * sizeof (USHORT*) );
429 if( !t->data )
430 goto err;
431 t->data_persistent = msi_alloc_zero( t->row_count * sizeof(BOOL));
432 if ( !t->data_persistent )
433 goto err;
434
435 /* transpose all the data */
436 TRACE("Transposing data from %d rows\n", t->row_count );
437 for (i = 0; i < t->row_count; i++)
438 {
439 UINT ofs = 0, ofs_mem = 0;
440
441 t->data[i] = msi_alloc( row_size_mem );
442 if( !t->data[i] )
443 goto err;
444 t->data_persistent[i] = TRUE;
445
446 for (j = 0; j < t->col_count; j++)
447 {
448 UINT m = bytes_per_column( db, &t->colinfo[j], LONG_STR_BYTES );
449 UINT n = bytes_per_column( db, &t->colinfo[j], db->bytes_per_strref );
450 UINT k;
451
452 if ( n != 2 && n != 3 && n != 4 )
453 {
454 ERR("oops - unknown column width %d\n", n);
455 goto err;
456 }
457 if (t->colinfo[j].type & MSITYPE_STRING && n < m)
458 {
459 for (k = 0; k < m; k++)
460 {
461 if (k < n)
462 t->data[i][ofs_mem + k] = rawdata[ofs * t->row_count + i * n + k];
463 else
464 t->data[i][ofs_mem + k] = 0;
465 }
466 }
467 else
468 {
469 for (k = 0; k < n; k++)
470 t->data[i][ofs_mem + k] = rawdata[ofs * t->row_count + i * n + k];
471 }
472 ofs_mem += m;
473 ofs += n;
474 }
475 }
476
477 msi_free( rawdata );
478 return ERROR_SUCCESS;
479 err:
480 msi_free( rawdata );
481 return ERROR_FUNCTION_FAILED;
482 }
483
484 void free_cached_tables( MSIDATABASE *db )
485 {
486 while( !list_empty( &db->tables ) )
487 {
488 MSITABLE *t = LIST_ENTRY( list_head( &db->tables ), MSITABLE, entry );
489
490 list_remove( &t->entry );
491 free_table( t );
492 }
493 }
494
495 static MSITABLE *find_cached_table( MSIDATABASE *db, LPCWSTR name )
496 {
497 MSITABLE *t;
498
499 LIST_FOR_EACH_ENTRY( t, &db->tables, MSITABLE, entry )
500 if( !strcmpW( name, t->name ) )
501 return t;
502
503 return NULL;
504 }
505
506 static void table_calc_column_offsets( MSIDATABASE *db, MSICOLUMNINFO *colinfo, DWORD count )
507 {
508 DWORD i;
509
510 for (i = 0; colinfo && i < count; i++)
511 {
512 assert( i + 1 == colinfo[i].number );
513 if (i) colinfo[i].offset = colinfo[i - 1].offset +
514 bytes_per_column( db, &colinfo[i - 1], LONG_STR_BYTES );
515 else colinfo[i].offset = 0;
516
517 TRACE("column %d is [%s] with type %08x ofs %d\n",
518 colinfo[i].number, debugstr_w(colinfo[i].colname),
519 colinfo[i].type, colinfo[i].offset);
520 }
521 }
522
523 static UINT get_defaulttablecolumns( MSIDATABASE *db, LPCWSTR name, MSICOLUMNINFO *colinfo, UINT *sz )
524 {
525 const MSICOLUMNINFO *p;
526 DWORD i, n;
527
528 TRACE("%s\n", debugstr_w(name));
529
530 if (!strcmpW( name, szTables ))
531 {
532 p = _Tables_cols;
533 n = 1;
534 }
535 else if (!strcmpW( name, szColumns ))
536 {
537 p = _Columns_cols;
538 n = 4;
539 }
540 else return ERROR_FUNCTION_FAILED;
541
542 for (i = 0; i < n; i++)
543 {
544 if (colinfo && i < *sz) colinfo[i] = p[i];
545 if (colinfo && i >= *sz) break;
546 }
547 table_calc_column_offsets( db, colinfo, n );
548 *sz = n;
549 return ERROR_SUCCESS;
550 }
551
552 static UINT get_tablecolumns( MSIDATABASE *db, LPCWSTR szTableName, MSICOLUMNINFO *colinfo, UINT *sz );
553
554 static UINT table_get_column_info( MSIDATABASE *db, LPCWSTR name, MSICOLUMNINFO **pcols, UINT *pcount )
555 {
556 UINT r, column_count = 0;
557 MSICOLUMNINFO *columns;
558
559 /* get the number of columns in this table */
560 column_count = 0;
561 r = get_tablecolumns( db, name, NULL, &column_count );
562 if (r != ERROR_SUCCESS)
563 return r;
564
565 *pcount = column_count;
566
567 /* if there are no columns, there's no table */
568 if (!column_count)
569 return ERROR_INVALID_PARAMETER;
570
571 TRACE("table %s found\n", debugstr_w(name));
572
573 columns = msi_alloc( column_count * sizeof(MSICOLUMNINFO) );
574 if (!columns)
575 return ERROR_FUNCTION_FAILED;
576
577 r = get_tablecolumns( db, name, columns, &column_count );
578 if (r != ERROR_SUCCESS)
579 {
580 msi_free( columns );
581 return ERROR_FUNCTION_FAILED;
582 }
583 *pcols = columns;
584 return r;
585 }
586
587 static UINT get_table( MSIDATABASE *db, LPCWSTR name, MSITABLE **table_ret )
588 {
589 MSITABLE *table;
590 UINT r;
591
592 /* first, see if the table is cached */
593 table = find_cached_table( db, name );
594 if (table)
595 {
596 *table_ret = table;
597 return ERROR_SUCCESS;
598 }
599
600 /* nonexistent tables should be interpreted as empty tables */
601 table = msi_alloc( sizeof(MSITABLE) + lstrlenW( name ) * sizeof(WCHAR) );
602 if (!table)
603 return ERROR_FUNCTION_FAILED;
604
605 table->row_count = 0;
606 table->data = NULL;
607 table->data_persistent = NULL;
608 table->colinfo = NULL;
609 table->col_count = 0;
610 table->persistent = MSICONDITION_TRUE;
611 lstrcpyW( table->name, name );
612
613 if (!strcmpW( name, szTables ) || !strcmpW( name, szColumns ))
614 table->persistent = MSICONDITION_NONE;
615
616 r = table_get_column_info( db, name, &table->colinfo, &table->col_count );
617 if (r != ERROR_SUCCESS)
618 {
619 free_table( table );
620 return r;
621 }
622 r = read_table_from_storage( db, table, db->storage );
623 if (r != ERROR_SUCCESS)
624 {
625 free_table( table );
626 return r;
627 }
628 list_add_head( &db->tables, &table->entry );
629 *table_ret = table;
630 return ERROR_SUCCESS;
631 }
632
633 static UINT read_table_int( BYTE *const *data, UINT row, UINT col, UINT bytes )
634 {
635 UINT ret = 0, i;
636
637 for (i = 0; i < bytes; i++)
638 ret += data[row][col + i] << i * 8;
639
640 return ret;
641 }
642
643 static UINT get_tablecolumns( MSIDATABASE *db, LPCWSTR szTableName, MSICOLUMNINFO *colinfo, UINT *sz )
644 {
645 UINT r, i, n = 0, table_id, count, maxcount = *sz;
646 MSITABLE *table = NULL;
647
648 TRACE("%s\n", debugstr_w(szTableName));
649
650 /* first check if there is a default table with that name */
651 r = get_defaulttablecolumns( db, szTableName, colinfo, sz );
652 if (r == ERROR_SUCCESS && *sz)
653 return r;
654
655 r = get_table( db, szColumns, &table );
656 if (r != ERROR_SUCCESS)
657 {
658 ERR("couldn't load _Columns table\n");
659 return ERROR_FUNCTION_FAILED;
660 }
661
662 /* convert table and column names to IDs from the string table */
663 r = msi_string2id( db->strings, szTableName, -1, &table_id );
664 if (r != ERROR_SUCCESS)
665 {
666 WARN("Couldn't find id for %s\n", debugstr_w(szTableName));
667 return r;
668 }
669 TRACE("Table id is %d, row count is %d\n", table_id, table->row_count);
670
671 /* Note: _Columns table doesn't have non-persistent data */
672
673 /* if maxcount is non-zero, assume it's exactly right for this table */
674 memset( colinfo, 0, maxcount * sizeof(*colinfo) );
675 count = table->row_count;
676 for (i = 0; i < count; i++)
677 {
678 if (read_table_int( table->data, i, 0, LONG_STR_BYTES) != table_id) continue;
679 if (colinfo)
680 {
681 UINT id = read_table_int( table->data, i, table->colinfo[2].offset, LONG_STR_BYTES );
682 UINT col = read_table_int( table->data, i, table->colinfo[1].offset, sizeof(USHORT) ) - (1 << 15);
683
684 /* check the column number is in range */
685 if (col < 1 || col > maxcount)
686 {
687 ERR("column %d out of range\n", col);
688 continue;
689 }
690 /* check if this column was already set */
691 if (colinfo[col - 1].number)
692 {
693 ERR("duplicate column %d\n", col);
694 continue;
695 }
696 colinfo[col - 1].tablename = msi_string_lookup( db->strings, table_id, NULL );
697 colinfo[col - 1].number = col;
698 colinfo[col - 1].colname = msi_string_lookup( db->strings, id, NULL );
699 colinfo[col - 1].type = read_table_int( table->data, i, table->colinfo[3].offset,
700 sizeof(USHORT) ) - (1 << 15);
701 colinfo[col - 1].offset = 0;
702 colinfo[col - 1].ref_count = 0;
703 colinfo[col - 1].hash_table = NULL;
704 }
705 n++;
706 }
707 TRACE("%s has %d columns\n", debugstr_w(szTableName), n);
708
709 if (colinfo && n != maxcount)
710 {
711 ERR("missing column in table %s\n", debugstr_w(szTableName));
712 msi_free_colinfo( colinfo, maxcount );
713 return ERROR_FUNCTION_FAILED;
714 }
715 table_calc_column_offsets( db, colinfo, n );
716 *sz = n;
717 return ERROR_SUCCESS;
718 }
719
720 UINT msi_create_table( MSIDATABASE *db, LPCWSTR name, column_info *col_info,
721 MSICONDITION persistent )
722 {
723 enum StringPersistence string_persistence = (persistent) ? StringPersistent : StringNonPersistent;
724 UINT r, nField;
725 MSIVIEW *tv = NULL;
726 MSIRECORD *rec = NULL;
727 column_info *col;
728 MSITABLE *table;
729 UINT i;
730
731 /* only add tables that don't exist already */
732 if( TABLE_Exists(db, name ) )
733 {
734 WARN("table %s exists\n", debugstr_w(name));
735 return ERROR_BAD_QUERY_SYNTAX;
736 }
737
738 table = msi_alloc( sizeof (MSITABLE) + lstrlenW(name)*sizeof (WCHAR) );
739 if( !table )
740 return ERROR_FUNCTION_FAILED;
741
742 table->ref_count = 1;
743 table->row_count = 0;
744 table->data = NULL;
745 table->data_persistent = NULL;
746 table->colinfo = NULL;
747 table->col_count = 0;
748 table->persistent = persistent;
749 lstrcpyW( table->name, name );
750
751 for( col = col_info; col; col = col->next )
752 table->col_count++;
753
754 table->colinfo = msi_alloc( table->col_count * sizeof(MSICOLUMNINFO) );
755 if (!table->colinfo)
756 {
757 free_table( table );
758 return ERROR_FUNCTION_FAILED;
759 }
760
761 for( i = 0, col = col_info; col; i++, col = col->next )
762 {
763 UINT table_id = msi_addstringW( db->strings, col->table, -1, 1, string_persistence );
764 UINT col_id = msi_addstringW( db->strings, col->column, -1, 1, string_persistence );
765
766 table->colinfo[ i ].tablename = msi_string_lookup( db->strings, table_id, NULL );
767 table->colinfo[ i ].number = i + 1;
768 table->colinfo[ i ].colname = msi_string_lookup( db->strings, col_id, NULL );
769 table->colinfo[ i ].type = col->type;
770 table->colinfo[ i ].offset = 0;
771 table->colinfo[ i ].ref_count = 0;
772 table->colinfo[ i ].hash_table = NULL;
773 table->colinfo[ i ].temporary = col->temporary;
774 }
775 table_calc_column_offsets( db, table->colinfo, table->col_count);
776
777 r = TABLE_CreateView( db, szTables, &tv );
778 TRACE("CreateView returned %x\n", r);
779 if( r )
780 {
781 free_table( table );
782 return r;
783 }
784
785 r = tv->ops->execute( tv, 0 );
786 TRACE("tv execute returned %x\n", r);
787 if( r )
788 goto err;
789
790 rec = MSI_CreateRecord( 1 );
791 if( !rec )
792 goto err;
793
794 r = MSI_RecordSetStringW( rec, 1, name );
795 if( r )
796 goto err;
797
798 r = tv->ops->insert_row( tv, rec, -1, persistent == MSICONDITION_FALSE );
799 TRACE("insert_row returned %x\n", r);
800 if( r )
801 goto err;
802
803 tv->ops->delete( tv );
804 tv = NULL;
805
806 msiobj_release( &rec->hdr );
807 rec = NULL;
808
809 if( persistent != MSICONDITION_FALSE )
810 {
811 /* add each column to the _Columns table */
812 r = TABLE_CreateView( db, szColumns, &tv );
813 if( r )
814 return r;
815
816 r = tv->ops->execute( tv, 0 );
817 TRACE("tv execute returned %x\n", r);
818 if( r )
819 goto err;
820
821 rec = MSI_CreateRecord( 4 );
822 if( !rec )
823 goto err;
824
825 r = MSI_RecordSetStringW( rec, 1, name );
826 if( r )
827 goto err;
828
829 /*
830 * need to set the table, column number, col name and type
831 * for each column we enter in the table
832 */
833 nField = 1;
834 for( col = col_info; col; col = col->next )
835 {
836 r = MSI_RecordSetInteger( rec, 2, nField );
837 if( r )
838 goto err;
839
840 r = MSI_RecordSetStringW( rec, 3, col->column );
841 if( r )
842 goto err;
843
844 r = MSI_RecordSetInteger( rec, 4, col->type );
845 if( r )
846 goto err;
847
848 r = tv->ops->insert_row( tv, rec, -1, FALSE );
849 if( r )
850 goto err;
851
852 nField++;
853 }
854 if( !col )
855 r = ERROR_SUCCESS;
856 }
857
858 err:
859 if (rec)
860 msiobj_release( &rec->hdr );
861 /* FIXME: remove values from the string table on error */
862 if( tv )
863 tv->ops->delete( tv );
864
865 if (r == ERROR_SUCCESS)
866 list_add_head( &db->tables, &table->entry );
867 else
868 free_table( table );
869
870 return r;
871 }
872
873 static UINT save_table( MSIDATABASE *db, const MSITABLE *t, UINT bytes_per_strref )
874 {
875 BYTE *rawdata = NULL;
876 UINT rawsize, i, j, row_size, row_count;
877 UINT r = ERROR_FUNCTION_FAILED;
878
879 /* Nothing to do for non-persistent tables */
880 if( t->persistent == MSICONDITION_FALSE )
881 return ERROR_SUCCESS;
882
883 TRACE("Saving %s\n", debugstr_w( t->name ) );
884
885 row_size = msi_table_get_row_size( db, t->colinfo, t->col_count, bytes_per_strref );
886 row_count = t->row_count;
887 for (i = 0; i < t->row_count; i++)
888 {
889 if (!t->data_persistent[i])
890 {
891 row_count = 1; /* yes, this is bizarre */
892 break;
893 }
894 }
895 rawsize = row_count * row_size;
896 rawdata = msi_alloc_zero( rawsize );
897 if( !rawdata )
898 {
899 r = ERROR_NOT_ENOUGH_MEMORY;
900 goto err;
901 }
902
903 rawsize = 0;
904 for (i = 0; i < t->row_count; i++)
905 {
906 UINT ofs = 0, ofs_mem = 0;
907
908 if (!t->data_persistent[i]) break;
909
910 for (j = 0; j < t->col_count; j++)
911 {
912 UINT m = bytes_per_column( db, &t->colinfo[j], LONG_STR_BYTES );
913 UINT n = bytes_per_column( db, &t->colinfo[j], bytes_per_strref );
914 UINT k;
915
916 if (n != 2 && n != 3 && n != 4)
917 {
918 ERR("oops - unknown column width %d\n", n);
919 goto err;
920 }
921 if (t->colinfo[j].type & MSITYPE_STRING && n < m)
922 {
923 UINT id = read_table_int( t->data, i, ofs_mem, LONG_STR_BYTES );
924 if (id > 1 << bytes_per_strref * 8)
925 {
926 ERR("string id %u out of range\n", id);
927 goto err;
928 }
929 }
930 for (k = 0; k < n; k++)
931 {
932 rawdata[ofs * row_count + i * n + k] = t->data[i][ofs_mem + k];
933 }
934 ofs_mem += m;
935 ofs += n;
936 }
937 rawsize += row_size;
938 }
939
940 TRACE("writing %d bytes\n", rawsize);
941 r = write_stream_data( db->storage, t->name, rawdata, rawsize, TRUE );
942
943 err:
944 msi_free( rawdata );
945 return r;
946 }
947
948 static void msi_update_table_columns( MSIDATABASE *db, LPCWSTR name )
949 {
950 MSITABLE *table;
951 UINT size, offset, old_count;
952 UINT n;
953
954 table = find_cached_table( db, name );
955 old_count = table->col_count;
956 msi_free_colinfo( table->colinfo, table->col_count );
957 msi_free( table->colinfo );
958 table->colinfo = NULL;
959
960 table_get_column_info( db, name, &table->colinfo, &table->col_count );
961 if (!table->col_count) return;
962
963 size = msi_table_get_row_size( db, table->colinfo, table->col_count, LONG_STR_BYTES );
964 offset = table->colinfo[table->col_count - 1].offset;
965
966 for ( n = 0; n < table->row_count; n++ )
967 {
968 table->data[n] = msi_realloc( table->data[n], size );
969 if (old_count < table->col_count)
970 memset( &table->data[n][offset], 0, size - offset );
971 }
972 }
973
974 /* try to find the table name in the _Tables table */
975 BOOL TABLE_Exists( MSIDATABASE *db, LPCWSTR name )
976 {
977 UINT r, table_id, i;
978 MSITABLE *table;
979
980 if( !strcmpW( name, szTables ) || !strcmpW( name, szColumns ) ||
981 !strcmpW( name, szStreams ) || !strcmpW( name, szStorages ) )
982 return TRUE;
983
984 r = msi_string2id( db->strings, name, -1, &table_id );
985 if( r != ERROR_SUCCESS )
986 {
987 TRACE("Couldn't find id for %s\n", debugstr_w(name));
988 return FALSE;
989 }
990
991 r = get_table( db, szTables, &table );
992 if( r != ERROR_SUCCESS )
993 {
994 ERR("table %s not available\n", debugstr_w(szTables));
995 return FALSE;
996 }
997
998 for( i = 0; i < table->row_count; i++ )
999 {
1000 if( read_table_int( table->data, i, 0, LONG_STR_BYTES ) == table_id )
1001 return TRUE;
1002 }
1003
1004 return FALSE;
1005 }
1006
1007 /* below is the query interface to a table */
1008
1009 typedef struct tagMSITABLEVIEW
1010 {
1011 MSIVIEW view;
1012 MSIDATABASE *db;
1013 MSITABLE *table;
1014 MSICOLUMNINFO *columns;
1015 UINT num_cols;
1016 UINT row_size;
1017 WCHAR name[1];
1018 } MSITABLEVIEW;
1019
1020 static UINT TABLE_fetch_int( struct tagMSIVIEW *view, UINT row, UINT col, UINT *val )
1021 {
1022 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1023 UINT offset, n;
1024
1025 if( !tv->table )
1026 return ERROR_INVALID_PARAMETER;
1027
1028 if( (col==0) || (col>tv->num_cols) )
1029 return ERROR_INVALID_PARAMETER;
1030
1031 /* how many rows are there ? */
1032 if( row >= tv->table->row_count )
1033 return ERROR_NO_MORE_ITEMS;
1034
1035 if( tv->columns[col-1].offset >= tv->row_size )
1036 {
1037 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1038 ERR("%p %p\n", tv, tv->columns );
1039 return ERROR_FUNCTION_FAILED;
1040 }
1041
1042 n = bytes_per_column( tv->db, &tv->columns[col - 1], LONG_STR_BYTES );
1043 if (n != 2 && n != 3 && n != 4)
1044 {
1045 ERR("oops! what is %d bytes per column?\n", n );
1046 return ERROR_FUNCTION_FAILED;
1047 }
1048
1049 offset = tv->columns[col-1].offset;
1050 *val = read_table_int(tv->table->data, row, offset, n);
1051
1052 /* TRACE("Data [%d][%d] = %d\n", row, col, *val ); */
1053
1054 return ERROR_SUCCESS;
1055 }
1056
1057 static UINT msi_stream_name( const MSITABLEVIEW *tv, UINT row, LPWSTR *pstname )
1058 {
1059 LPWSTR p, stname = NULL;
1060 UINT i, r, type, ival;
1061 DWORD len;
1062 LPCWSTR sval;
1063 MSIVIEW *view = (MSIVIEW *) tv;
1064
1065 TRACE("%p %d\n", tv, row);
1066
1067 len = lstrlenW( tv->name ) + 1;
1068 stname = msi_alloc( len*sizeof(WCHAR) );
1069 if ( !stname )
1070 {
1071 r = ERROR_OUTOFMEMORY;
1072 goto err;
1073 }
1074
1075 lstrcpyW( stname, tv->name );
1076
1077 for ( i = 0; i < tv->num_cols; i++ )
1078 {
1079 type = tv->columns[i].type;
1080 if ( type & MSITYPE_KEY )
1081 {
1082 WCHAR number[0x20];
1083
1084 r = TABLE_fetch_int( view, row, i+1, &ival );
1085 if ( r != ERROR_SUCCESS )
1086 goto err;
1087
1088 if ( tv->columns[i].type & MSITYPE_STRING )
1089 {
1090 sval = msi_string_lookup( tv->db->strings, ival, NULL );
1091 if ( !sval )
1092 {
1093 r = ERROR_INVALID_PARAMETER;
1094 goto err;
1095 }
1096 }
1097 else
1098 {
1099 static const WCHAR fmt[] = { '%','d',0 };
1100 UINT n = bytes_per_column( tv->db, &tv->columns[i], LONG_STR_BYTES );
1101
1102 switch( n )
1103 {
1104 case 2:
1105 sprintfW( number, fmt, ival-0x8000 );
1106 break;
1107 case 4:
1108 sprintfW( number, fmt, ival^0x80000000 );
1109 break;
1110 default:
1111 ERR( "oops - unknown column width %d\n", n );
1112 r = ERROR_FUNCTION_FAILED;
1113 goto err;
1114 }
1115 sval = number;
1116 }
1117
1118 len += lstrlenW( szDot ) + lstrlenW( sval );
1119 p = msi_realloc ( stname, len*sizeof(WCHAR) );
1120 if ( !p )
1121 {
1122 r = ERROR_OUTOFMEMORY;
1123 goto err;
1124 }
1125 stname = p;
1126
1127 lstrcatW( stname, szDot );
1128 lstrcatW( stname, sval );
1129 }
1130 else
1131 continue;
1132 }
1133
1134 *pstname = stname;
1135 return ERROR_SUCCESS;
1136
1137 err:
1138 msi_free( stname );
1139 *pstname = NULL;
1140 return r;
1141 }
1142
1143 /*
1144 * We need a special case for streams, as we need to reference column with
1145 * the name of the stream in the same table, and the table name
1146 * which may not be available at higher levels of the query
1147 */
1148 static UINT TABLE_fetch_stream( struct tagMSIVIEW *view, UINT row, UINT col, IStream **stm )
1149 {
1150 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1151 UINT r;
1152 LPWSTR encname, full_name = NULL;
1153
1154 if( !view->ops->fetch_int )
1155 return ERROR_INVALID_PARAMETER;
1156
1157 r = msi_stream_name( tv, row, &full_name );
1158 if ( r != ERROR_SUCCESS )
1159 {
1160 ERR("fetching stream, error = %d\n", r);
1161 return r;
1162 }
1163
1164 encname = encode_streamname( FALSE, full_name );
1165 r = msi_get_raw_stream( tv->db, encname, stm );
1166 if( r )
1167 ERR("fetching stream %s, error = %d\n",debugstr_w(full_name), r);
1168
1169 msi_free( full_name );
1170 msi_free( encname );
1171 return r;
1172 }
1173
1174 static UINT TABLE_set_int( MSITABLEVIEW *tv, UINT row, UINT col, UINT val )
1175 {
1176 UINT offset, n, i;
1177
1178 if( !tv->table )
1179 return ERROR_INVALID_PARAMETER;
1180
1181 if( (col==0) || (col>tv->num_cols) )
1182 return ERROR_INVALID_PARAMETER;
1183
1184 if( row >= tv->table->row_count )
1185 return ERROR_INVALID_PARAMETER;
1186
1187 if( tv->columns[col-1].offset >= tv->row_size )
1188 {
1189 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1190 ERR("%p %p\n", tv, tv->columns );
1191 return ERROR_FUNCTION_FAILED;
1192 }
1193
1194 msi_free( tv->columns[col-1].hash_table );
1195 tv->columns[col-1].hash_table = NULL;
1196
1197 n = bytes_per_column( tv->db, &tv->columns[col - 1], LONG_STR_BYTES );
1198 if ( n != 2 && n != 3 && n != 4 )
1199 {
1200 ERR("oops! what is %d bytes per column?\n", n );
1201 return ERROR_FUNCTION_FAILED;
1202 }
1203
1204 offset = tv->columns[col-1].offset;
1205 for ( i = 0; i < n; i++ )
1206 tv->table->data[row][offset + i] = (val >> i * 8) & 0xff;
1207
1208 return ERROR_SUCCESS;
1209 }
1210
1211 static UINT TABLE_get_row( struct tagMSIVIEW *view, UINT row, MSIRECORD **rec )
1212 {
1213 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1214
1215 if (!tv->table)
1216 return ERROR_INVALID_PARAMETER;
1217
1218 return msi_view_get_row(tv->db, view, row, rec);
1219 }
1220
1221 static UINT msi_addstreamW( MSIDATABASE *db, LPCWSTR name, IStream *data )
1222 {
1223 static const WCHAR insert[] = {
1224 'I','N','S','E','R','T',' ','I','N','T','O',' ',
1225 '`','_','S','t','r','e','a','m','s','`',' ',
1226 '(','`','N','a','m','e','`',',','`','D','a','t','a','`',')',' ',
1227 'V','A','L','U','E','S',' ','(','?',',','?',')',0};
1228 MSIQUERY *query = NULL;
1229 MSIRECORD *rec;
1230 UINT r;
1231
1232 TRACE("%p %s %p\n", db, debugstr_w(name), data);
1233
1234 rec = MSI_CreateRecord( 2 );
1235 if ( !rec )
1236 return ERROR_OUTOFMEMORY;
1237
1238 r = MSI_RecordSetStringW( rec, 1, name );
1239 if ( r != ERROR_SUCCESS )
1240 goto err;
1241
1242 r = MSI_RecordSetIStream( rec, 2, data );
1243 if ( r != ERROR_SUCCESS )
1244 goto err;
1245
1246 r = MSI_DatabaseOpenViewW( db, insert, &query );
1247 if ( r != ERROR_SUCCESS )
1248 goto err;
1249
1250 r = MSI_ViewExecute( query, rec );
1251
1252 err:
1253 msiobj_release( &query->hdr );
1254 msiobj_release( &rec->hdr );
1255 return r;
1256 }
1257
1258 static UINT get_table_value_from_record( MSITABLEVIEW *tv, MSIRECORD *rec, UINT iField, UINT *pvalue )
1259 {
1260 MSICOLUMNINFO columninfo;
1261 UINT r;
1262 int ival;
1263
1264 if ( (iField <= 0) ||
1265 (iField > tv->num_cols) ||
1266 MSI_RecordIsNull( rec, iField ) )
1267 return ERROR_FUNCTION_FAILED;
1268
1269 columninfo = tv->columns[ iField - 1 ];
1270
1271 if ( MSITYPE_IS_BINARY(columninfo.type) )
1272 {
1273 *pvalue = 1; /* refers to the first key column */
1274 }
1275 else if ( columninfo.type & MSITYPE_STRING )
1276 {
1277 int len;
1278 const WCHAR *sval = msi_record_get_string( rec, iField, &len );
1279 if (sval)
1280 {
1281 r = msi_string2id( tv->db->strings, sval, len, pvalue );
1282 if (r != ERROR_SUCCESS)
1283 return ERROR_NOT_FOUND;
1284 }
1285 else *pvalue = 0;
1286 }
1287 else if ( bytes_per_column( tv->db, &columninfo, LONG_STR_BYTES ) == 2 )
1288 {
1289 ival = MSI_RecordGetInteger( rec, iField );
1290 if (ival == 0x80000000) *pvalue = 0x8000;
1291 else
1292 {
1293 *pvalue = 0x8000 + MSI_RecordGetInteger( rec, iField );
1294 if (*pvalue & 0xffff0000)
1295 {
1296 ERR("field %u value %d out of range\n", iField, *pvalue - 0x8000);
1297 return ERROR_FUNCTION_FAILED;
1298 }
1299 }
1300 }
1301 else
1302 {
1303 ival = MSI_RecordGetInteger( rec, iField );
1304 *pvalue = ival ^ 0x80000000;
1305 }
1306
1307 return ERROR_SUCCESS;
1308 }
1309
1310 static UINT TABLE_set_row( struct tagMSIVIEW *view, UINT row, MSIRECORD *rec, UINT mask )
1311 {
1312 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1313 UINT i, val, r = ERROR_SUCCESS;
1314
1315 if ( !tv->table )
1316 return ERROR_INVALID_PARAMETER;
1317
1318 /* test if any of the mask bits are invalid */
1319 if ( mask >= (1<<tv->num_cols) )
1320 return ERROR_INVALID_PARAMETER;
1321
1322 for ( i = 0; i < tv->num_cols; i++ )
1323 {
1324 BOOL persistent;
1325
1326 /* only update the fields specified in the mask */
1327 if ( !(mask&(1<<i)) )
1328 continue;
1329
1330 persistent = (tv->table->persistent != MSICONDITION_FALSE) &&
1331 (tv->table->data_persistent[row]);
1332 /* FIXME: should we allow updating keys? */
1333
1334 val = 0;
1335 if ( !MSI_RecordIsNull( rec, i + 1 ) )
1336 {
1337 r = get_table_value_from_record (tv, rec, i + 1, &val);
1338 if ( MSITYPE_IS_BINARY(tv->columns[ i ].type) )
1339 {
1340 IStream *stm;
1341 LPWSTR stname;
1342
1343 if ( r != ERROR_SUCCESS )
1344 return ERROR_FUNCTION_FAILED;
1345
1346 r = MSI_RecordGetIStream( rec, i + 1, &stm );
1347 if ( r != ERROR_SUCCESS )
1348 return r;
1349
1350 r = msi_stream_name( tv, row, &stname );
1351 if ( r != ERROR_SUCCESS )
1352 {
1353 IStream_Release( stm );
1354 return r;
1355 }
1356
1357 r = msi_addstreamW( tv->db, stname, stm );
1358 IStream_Release( stm );
1359 msi_free ( stname );
1360
1361 if ( r != ERROR_SUCCESS )
1362 return r;
1363 }
1364 else if ( tv->columns[i].type & MSITYPE_STRING )
1365 {
1366 UINT x;
1367
1368 if ( r != ERROR_SUCCESS )
1369 {
1370 int len;
1371 const WCHAR *sval = msi_record_get_string( rec, i + 1, &len );
1372 val = msi_addstringW( tv->db->strings, sval, len, 1,
1373 persistent ? StringPersistent : StringNonPersistent );
1374 }
1375 else
1376 {
1377 TABLE_fetch_int(&tv->view, row, i + 1, &x);
1378 if (val == x)
1379 continue;
1380 }
1381 }
1382 else
1383 {
1384 if ( r != ERROR_SUCCESS )
1385 return ERROR_FUNCTION_FAILED;
1386 }
1387 }
1388
1389 r = TABLE_set_int( tv, row, i+1, val );
1390 if ( r != ERROR_SUCCESS )
1391 break;
1392 }
1393 return r;
1394 }
1395
1396 static UINT table_create_new_row( struct tagMSIVIEW *view, UINT *num, BOOL temporary )
1397 {
1398 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1399 BYTE **p, *row;
1400 BOOL *b;
1401 UINT sz;
1402 BYTE ***data_ptr;
1403 BOOL **data_persist_ptr;
1404 UINT *row_count;
1405
1406 TRACE("%p %s\n", view, temporary ? "TRUE" : "FALSE");
1407
1408 if( !tv->table )
1409 return ERROR_INVALID_PARAMETER;
1410
1411 row = msi_alloc_zero( tv->row_size );
1412 if( !row )
1413 return ERROR_NOT_ENOUGH_MEMORY;
1414
1415 row_count = &tv->table->row_count;
1416 data_ptr = &tv->table->data;
1417 data_persist_ptr = &tv->table->data_persistent;
1418 if (*num == -1)
1419 *num = tv->table->row_count;
1420
1421 sz = (*row_count + 1) * sizeof (BYTE*);
1422 if( *data_ptr )
1423 p = msi_realloc( *data_ptr, sz );
1424 else
1425 p = msi_alloc( sz );
1426 if( !p )
1427 {
1428 msi_free( row );
1429 return ERROR_NOT_ENOUGH_MEMORY;
1430 }
1431
1432 sz = (*row_count + 1) * sizeof (BOOL);
1433 if( *data_persist_ptr )
1434 b = msi_realloc( *data_persist_ptr, sz );
1435 else
1436 b = msi_alloc( sz );
1437 if( !b )
1438 {
1439 msi_free( row );
1440 msi_free( p );
1441 return ERROR_NOT_ENOUGH_MEMORY;
1442 }
1443
1444 *data_ptr = p;
1445 (*data_ptr)[*row_count] = row;
1446
1447 *data_persist_ptr = b;
1448 (*data_persist_ptr)[*row_count] = !temporary;
1449
1450 (*row_count)++;
1451
1452 return ERROR_SUCCESS;
1453 }
1454
1455 static UINT TABLE_execute( struct tagMSIVIEW *view, MSIRECORD *record )
1456 {
1457 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1458
1459 TRACE("%p %p\n", tv, record);
1460
1461 TRACE("There are %d columns\n", tv->num_cols );
1462
1463 return ERROR_SUCCESS;
1464 }
1465
1466 static UINT TABLE_close( struct tagMSIVIEW *view )
1467 {
1468 TRACE("%p\n", view );
1469
1470 return ERROR_SUCCESS;
1471 }
1472
1473 static UINT TABLE_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols)
1474 {
1475 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1476
1477 TRACE("%p %p %p\n", view, rows, cols );
1478
1479 if( cols )
1480 *cols = tv->num_cols;
1481 if( rows )
1482 {
1483 if( !tv->table )
1484 return ERROR_INVALID_PARAMETER;
1485 *rows = tv->table->row_count;
1486 }
1487
1488 return ERROR_SUCCESS;
1489 }
1490
1491 static UINT TABLE_get_column_info( struct tagMSIVIEW *view,
1492 UINT n, LPCWSTR *name, UINT *type, BOOL *temporary,
1493 LPCWSTR *table_name )
1494 {
1495 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1496
1497 TRACE("%p %d %p %p\n", tv, n, name, type );
1498
1499 if( ( n == 0 ) || ( n > tv->num_cols ) )
1500 return ERROR_INVALID_PARAMETER;
1501
1502 if( name )
1503 {
1504 *name = tv->columns[n-1].colname;
1505 if( !*name )
1506 return ERROR_FUNCTION_FAILED;
1507 }
1508
1509 if( table_name )
1510 {
1511 *table_name = tv->columns[n-1].tablename;
1512 if( !*table_name )
1513 return ERROR_FUNCTION_FAILED;
1514 }
1515
1516 if( type )
1517 *type = tv->columns[n-1].type;
1518
1519 if( temporary )
1520 *temporary = tv->columns[n-1].temporary;
1521
1522 return ERROR_SUCCESS;
1523 }
1524
1525 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row, UINT *column );
1526
1527 static UINT table_validate_new( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *column )
1528 {
1529 UINT r, row, i;
1530
1531 /* check there are no null values where they're not allowed */
1532 for( i = 0; i < tv->num_cols; i++ )
1533 {
1534 if ( tv->columns[i].type & MSITYPE_NULLABLE )
1535 continue;
1536
1537 if ( MSITYPE_IS_BINARY(tv->columns[i].type) )
1538 TRACE("skipping binary column\n");
1539 else if ( tv->columns[i].type & MSITYPE_STRING )
1540 {
1541 int len;
1542 const WCHAR *str = msi_record_get_string( rec, i+1, &len );
1543
1544 if (!str || (!str[0] && !len))
1545 {
1546 if (column) *column = i;
1547 return ERROR_INVALID_DATA;
1548 }
1549 }
1550 else
1551 {
1552 UINT n;
1553
1554 n = MSI_RecordGetInteger( rec, i+1 );
1555 if (n == MSI_NULL_INTEGER)
1556 {
1557 if (column) *column = i;
1558 return ERROR_INVALID_DATA;
1559 }
1560 }
1561 }
1562
1563 /* check there are no duplicate keys */
1564 r = msi_table_find_row( tv, rec, &row, column );
1565 if (r == ERROR_SUCCESS)
1566 return ERROR_FUNCTION_FAILED;
1567
1568 return ERROR_SUCCESS;
1569 }
1570
1571 static int compare_record( MSITABLEVIEW *tv, UINT row, MSIRECORD *rec )
1572 {
1573 UINT r, i, ivalue, x;
1574
1575 for (i = 0; i < tv->num_cols; i++ )
1576 {
1577 if (!(tv->columns[i].type & MSITYPE_KEY)) continue;
1578
1579 r = get_table_value_from_record( tv, rec, i + 1, &ivalue );
1580 if (r != ERROR_SUCCESS)
1581 return 1;
1582
1583 r = TABLE_fetch_int( &tv->view, row, i + 1, &x );
1584 if (r != ERROR_SUCCESS)
1585 {
1586 WARN("TABLE_fetch_int should not fail here %u\n", r);
1587 return -1;
1588 }
1589 if (ivalue > x)
1590 {
1591 return 1;
1592 }
1593 else if (ivalue == x)
1594 {
1595 if (i < tv->num_cols - 1) continue;
1596 return 0;
1597 }
1598 else
1599 return -1;
1600 }
1601 return 1;
1602 }
1603
1604 static int find_insert_index( MSITABLEVIEW *tv, MSIRECORD *rec )
1605 {
1606 int idx, c, low = 0, high = tv->table->row_count - 1;
1607
1608 TRACE("%p %p\n", tv, rec);
1609
1610 while (low <= high)
1611 {
1612 idx = (low + high) / 2;
1613 c = compare_record( tv, idx, rec );
1614
1615 if (c < 0)
1616 high = idx - 1;
1617 else if (c > 0)
1618 low = idx + 1;
1619 else
1620 {
1621 TRACE("found %u\n", idx);
1622 return idx;
1623 }
1624 }
1625 TRACE("found %u\n", high + 1);
1626 return high + 1;
1627 }
1628
1629 static UINT TABLE_insert_row( struct tagMSIVIEW *view, MSIRECORD *rec, UINT row, BOOL temporary )
1630 {
1631 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1632 UINT i, r;
1633
1634 TRACE("%p %p %s\n", tv, rec, temporary ? "TRUE" : "FALSE" );
1635
1636 /* check that the key is unique - can we find a matching row? */
1637 r = table_validate_new( tv, rec, NULL );
1638 if( r != ERROR_SUCCESS )
1639 return ERROR_FUNCTION_FAILED;
1640
1641 if (row == -1)
1642 row = find_insert_index( tv, rec );
1643
1644 r = table_create_new_row( view, &row, temporary );
1645 TRACE("insert_row returned %08x\n", r);
1646 if( r != ERROR_SUCCESS )
1647 return r;
1648
1649 /* shift the rows to make room for the new row */
1650 for (i = tv->table->row_count - 1; i > row; i--)
1651 {
1652 memmove(&(tv->table->data[i][0]),
1653 &(tv->table->data[i - 1][0]), tv->row_size);
1654 tv->table->data_persistent[i] = tv->table->data_persistent[i - 1];
1655 }
1656
1657 /* Re-set the persistence flag */
1658 tv->table->data_persistent[row] = !temporary;
1659 return TABLE_set_row( view, row, rec, (1<<tv->num_cols) - 1 );
1660 }
1661
1662 static UINT TABLE_delete_row( struct tagMSIVIEW *view, UINT row )
1663 {
1664 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1665 UINT r, num_rows, num_cols, i;
1666
1667 TRACE("%p %d\n", tv, row);
1668
1669 if ( !tv->table )
1670 return ERROR_INVALID_PARAMETER;
1671
1672 r = TABLE_get_dimensions( view, &num_rows, &num_cols );
1673 if ( r != ERROR_SUCCESS )
1674 return r;
1675
1676 if ( row >= num_rows )
1677 return ERROR_FUNCTION_FAILED;
1678
1679 num_rows = tv->table->row_count;
1680 tv->table->row_count--;
1681
1682 /* reset the hash tables */
1683 for (i = 0; i < tv->num_cols; i++)
1684 {
1685 msi_free( tv->columns[i].hash_table );
1686 tv->columns[i].hash_table = NULL;
1687 }
1688
1689 for (i = row + 1; i < num_rows; i++)
1690 {
1691 memcpy(tv->table->data[i - 1], tv->table->data[i], tv->row_size);
1692 tv->table->data_persistent[i - 1] = tv->table->data_persistent[i];
1693 }
1694
1695 msi_free(tv->table->data[num_rows - 1]);
1696
1697 return ERROR_SUCCESS;
1698 }
1699
1700 static UINT msi_table_update(struct tagMSIVIEW *view, MSIRECORD *rec, UINT row)
1701 {
1702 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1703 UINT r, new_row;
1704
1705 /* FIXME: MsiViewFetch should set rec index 0 to some ID that
1706 * sets the fetched record apart from other records
1707 */
1708
1709 if (!tv->table)
1710 return ERROR_INVALID_PARAMETER;
1711
1712 r = msi_table_find_row(tv, rec, &new_row, NULL);
1713 if (r != ERROR_SUCCESS)
1714 {
1715 ERR("can't find row to modify\n");
1716 return ERROR_FUNCTION_FAILED;
1717 }
1718
1719 /* the row cannot be changed */
1720 if (row != new_row + 1)
1721 return ERROR_FUNCTION_FAILED;
1722
1723 return TABLE_set_row(view, new_row, rec, (1 << tv->num_cols) - 1);
1724 }
1725
1726 static UINT msi_table_assign(struct tagMSIVIEW *view, MSIRECORD *rec)
1727 {
1728 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1729 UINT r, row;
1730
1731 if (!tv->table)
1732 return ERROR_INVALID_PARAMETER;
1733
1734 r = msi_table_find_row(tv, rec, &row, NULL);
1735 if (r == ERROR_SUCCESS)
1736 return TABLE_set_row(view, row, rec, (1 << tv->num_cols) - 1);
1737 else
1738 return TABLE_insert_row( view, rec, -1, FALSE );
1739 }
1740
1741 static UINT modify_delete_row( struct tagMSIVIEW *view, MSIRECORD *rec )
1742 {
1743 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1744 UINT row, r;
1745
1746 r = msi_table_find_row(tv, rec, &row, NULL);
1747 if (r != ERROR_SUCCESS)
1748 return r;
1749
1750 return TABLE_delete_row(view, row);
1751 }
1752
1753 static UINT msi_refresh_record( struct tagMSIVIEW *view, MSIRECORD *rec, UINT row )
1754 {
1755 MSIRECORD *curr;
1756 UINT r, i, count;
1757
1758 r = TABLE_get_row(view, row - 1, &curr);
1759 if (r != ERROR_SUCCESS)
1760 return r;
1761
1762 /* Close the original record */
1763 MSI_CloseRecord(&rec->hdr);
1764
1765 count = MSI_RecordGetFieldCount(rec);
1766 for (i = 0; i < count; i++)
1767 MSI_RecordCopyField(curr, i + 1, rec, i + 1);
1768
1769 msiobj_release(&curr->hdr);
1770 return ERROR_SUCCESS;
1771 }
1772
1773 static UINT TABLE_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode,
1774 MSIRECORD *rec, UINT row)
1775 {
1776 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1777 UINT r, frow, column;
1778
1779 TRACE("%p %d %p\n", view, eModifyMode, rec );
1780
1781 switch (eModifyMode)
1782 {
1783 case MSIMODIFY_DELETE:
1784 r = modify_delete_row( view, rec );
1785 break;
1786 case MSIMODIFY_VALIDATE_NEW:
1787 r = table_validate_new( tv, rec, &column );
1788 if (r != ERROR_SUCCESS)
1789 {
1790 tv->view.error = MSIDBERROR_DUPLICATEKEY;
1791 tv->view.error_column = tv->columns[column].colname;
1792 r = ERROR_INVALID_DATA;
1793 }
1794 break;
1795
1796 case MSIMODIFY_INSERT:
1797 r = table_validate_new( tv, rec, NULL );
1798 if (r != ERROR_SUCCESS)
1799 break;
1800 r = TABLE_insert_row( view, rec, -1, FALSE );
1801 break;
1802
1803 case MSIMODIFY_INSERT_TEMPORARY:
1804 r = table_validate_new( tv, rec, NULL );
1805 if (r != ERROR_SUCCESS)
1806 break;
1807 r = TABLE_insert_row( view, rec, -1, TRUE );
1808 break;
1809
1810 case MSIMODIFY_REFRESH:
1811 r = msi_refresh_record( view, rec, row );
1812 break;
1813
1814 case MSIMODIFY_UPDATE:
1815 r = msi_table_update( view, rec, row );
1816 break;
1817
1818 case MSIMODIFY_ASSIGN:
1819 r = msi_table_assign( view, rec );
1820 break;
1821
1822 case MSIMODIFY_MERGE:
1823 /* check row that matches this record */
1824 r = msi_table_find_row( tv, rec, &frow, &column );
1825 if (r != ERROR_SUCCESS)
1826 {
1827 r = table_validate_new( tv, rec, NULL );
1828 if (r == ERROR_SUCCESS)
1829 r = TABLE_insert_row( view, rec, -1, FALSE );
1830 }
1831 break;
1832
1833 case MSIMODIFY_REPLACE:
1834 case MSIMODIFY_VALIDATE:
1835 case MSIMODIFY_VALIDATE_FIELD:
1836 case MSIMODIFY_VALIDATE_DELETE:
1837 FIXME("%p %d %p - mode not implemented\n", view, eModifyMode, rec );
1838 r = ERROR_CALL_NOT_IMPLEMENTED;
1839 break;
1840
1841 default:
1842 r = ERROR_INVALID_DATA;
1843 }
1844
1845 return r;
1846 }
1847
1848 static UINT TABLE_delete( struct tagMSIVIEW *view )
1849 {
1850 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1851
1852 TRACE("%p\n", view );
1853
1854 tv->table = NULL;
1855 tv->columns = NULL;
1856
1857 msi_free( tv );
1858
1859 return ERROR_SUCCESS;
1860 }
1861
1862 static UINT TABLE_find_matching_rows( struct tagMSIVIEW *view, UINT col,
1863 UINT val, UINT *row, MSIITERHANDLE *handle )
1864 {
1865 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1866 const MSICOLUMNHASHENTRY *entry;
1867
1868 TRACE("%p, %d, %u, %p\n", view, col, val, *handle);
1869
1870 if( !tv->table )
1871 return ERROR_INVALID_PARAMETER;
1872
1873 if( (col==0) || (col > tv->num_cols) )
1874 return ERROR_INVALID_PARAMETER;
1875
1876 if( !tv->columns[col-1].hash_table )
1877 {
1878 UINT i;
1879 UINT num_rows = tv->table->row_count;
1880 MSICOLUMNHASHENTRY **hash_table;
1881 MSICOLUMNHASHENTRY *new_entry;
1882
1883 if( tv->columns[col-1].offset >= tv->row_size )
1884 {
1885 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1886 ERR("%p %p\n", tv, tv->columns );
1887 return ERROR_FUNCTION_FAILED;
1888 }
1889
1890 /* allocate contiguous memory for the table and its entries so we
1891 * don't have to do an expensive cleanup */
1892 hash_table = msi_alloc(MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*) +
1893 num_rows * sizeof(MSICOLUMNHASHENTRY));
1894 if (!hash_table)
1895 return ERROR_OUTOFMEMORY;
1896
1897 memset(hash_table, 0, MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*));
1898 tv->columns[col-1].hash_table = hash_table;
1899
1900 new_entry = (MSICOLUMNHASHENTRY *)(hash_table + MSITABLE_HASH_TABLE_SIZE);
1901
1902 for (i = 0; i < num_rows; i++, new_entry++)
1903 {
1904 UINT row_value;
1905
1906 if (view->ops->fetch_int( view, i, col, &row_value ) != ERROR_SUCCESS)
1907 continue;
1908
1909 new_entry->next = NULL;
1910 new_entry->value = row_value;
1911 new_entry->row = i;
1912 if (hash_table[row_value % MSITABLE_HASH_TABLE_SIZE])
1913 {
1914 MSICOLUMNHASHENTRY *prev_entry = hash_table[row_value % MSITABLE_HASH_TABLE_SIZE];
1915 while (prev_entry->next)
1916 prev_entry = prev_entry->next;
1917 prev_entry->next = new_entry;
1918 }
1919 else
1920 hash_table[row_value % MSITABLE_HASH_TABLE_SIZE] = new_entry;
1921 }
1922 }
1923
1924 if( !*handle )
1925 entry = tv->columns[col-1].hash_table[val % MSITABLE_HASH_TABLE_SIZE];
1926 else
1927 entry = (*handle)->next;
1928
1929 while (entry && entry->value != val)
1930 entry = entry->next;
1931
1932 *handle = entry;
1933 if (!entry)
1934 return ERROR_NO_MORE_ITEMS;
1935
1936 *row = entry->row;
1937
1938 return ERROR_SUCCESS;
1939 }
1940
1941 static UINT TABLE_add_ref(struct tagMSIVIEW *view)
1942 {
1943 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1944 UINT i;
1945
1946 TRACE("%p %d\n", view, tv->table->ref_count);
1947
1948 for (i = 0; i < tv->table->col_count; i++)
1949 {
1950 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
1951 InterlockedIncrement(&tv->table->colinfo[i].ref_count);
1952 }
1953
1954 return InterlockedIncrement(&tv->table->ref_count);
1955 }
1956
1957 static UINT TABLE_remove_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number)
1958 {
1959 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1960 MSIRECORD *rec = NULL;
1961 MSIVIEW *columns = NULL;
1962 UINT row, r;
1963
1964 rec = MSI_CreateRecord(2);
1965 if (!rec)
1966 return ERROR_OUTOFMEMORY;
1967
1968 MSI_RecordSetStringW(rec, 1, table);
1969 MSI_RecordSetInteger(rec, 2, number);
1970
1971 r = TABLE_CreateView(tv->db, szColumns, &columns);
1972 if (r != ERROR_SUCCESS)
1973 return r;
1974
1975 r = msi_table_find_row((MSITABLEVIEW *)columns, rec, &row, NULL);
1976 if (r != ERROR_SUCCESS)
1977 goto done;
1978
1979 r = TABLE_delete_row(columns, row);
1980 if (r != ERROR_SUCCESS)
1981 goto done;
1982
1983 msi_update_table_columns(tv->db, table);
1984
1985 done:
1986 msiobj_release(&rec->hdr);
1987 columns->ops->delete(columns);
1988 return r;
1989 }
1990
1991 static UINT TABLE_release(struct tagMSIVIEW *view)
1992 {
1993 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1994 INT ref = tv->table->ref_count;
1995 UINT i, r;
1996
1997 TRACE("%p %d\n", view, ref);
1998
1999 for (i = 0; i < tv->table->col_count; i++)
2000 {
2001 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
2002 {
2003 ref = InterlockedDecrement(&tv->table->colinfo[i].ref_count);
2004 if (ref == 0)
2005 {
2006 r = TABLE_remove_column(view, tv->table->colinfo[i].tablename,
2007 tv->table->colinfo[i].number);
2008 if (r != ERROR_SUCCESS)
2009 break;
2010 }
2011 }
2012 }
2013
2014 ref = InterlockedDecrement(&tv->table->ref_count);
2015 if (ref == 0)
2016 {
2017 if (!tv->table->row_count)
2018 {
2019 list_remove(&tv->table->entry);
2020 free_table(tv->table);
2021 TABLE_delete(view);
2022 }
2023 }
2024
2025 return ref;
2026 }
2027
2028 static UINT TABLE_add_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number,
2029 LPCWSTR column, UINT type, BOOL hold)
2030 {
2031 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
2032 MSITABLE *msitable;
2033 MSIRECORD *rec;
2034 UINT r, i;
2035
2036 rec = MSI_CreateRecord(4);
2037 if (!rec)
2038 return ERROR_OUTOFMEMORY;
2039
2040 MSI_RecordSetStringW(rec, 1, table);
2041 MSI_RecordSetInteger(rec, 2, number);
2042 MSI_RecordSetStringW(rec, 3, column);
2043 MSI_RecordSetInteger(rec, 4, type);
2044
2045 r = TABLE_insert_row(&tv->view, rec, -1, FALSE);
2046 if (r != ERROR_SUCCESS)
2047 goto done;
2048
2049 msi_update_table_columns(tv->db, table);
2050
2051 if (!hold)
2052 goto done;
2053
2054 msitable = find_cached_table(tv->db, table);
2055 for (i = 0; i < msitable->col_count; i++)
2056 {
2057 if (!strcmpW( msitable->colinfo[i].colname, column ))
2058 {
2059 InterlockedIncrement(&msitable->colinfo[i].ref_count);
2060 break;
2061 }
2062 }
2063
2064 done:
2065 msiobj_release(&rec->hdr);
2066 return r;
2067 }
2068
2069 static UINT TABLE_drop(struct tagMSIVIEW *view)
2070 {
2071 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
2072 MSIVIEW *tables = NULL;
2073 MSIRECORD *rec = NULL;
2074 UINT r, row;
2075 INT i;
2076
2077 TRACE("dropping table %s\n", debugstr_w(tv->name));
2078
2079 for (i = tv->table->col_count - 1; i >= 0; i--)
2080 {
2081 r = TABLE_remove_column(view, tv->table->colinfo[i].tablename,
2082 tv->table->colinfo[i].number);
2083 if (r != ERROR_SUCCESS)
2084 return r;
2085 }
2086
2087 rec = MSI_CreateRecord(1);
2088 if (!rec)
2089 return ERROR_OUTOFMEMORY;
2090
2091 MSI_RecordSetStringW(rec, 1, tv->name);
2092
2093 r = TABLE_CreateView(tv->db, szTables, &tables);
2094 if (r != ERROR_SUCCESS)
2095 return r;
2096
2097 r = msi_table_find_row((MSITABLEVIEW *)tables, rec, &row, NULL);
2098 if (r != ERROR_SUCCESS)
2099 goto done;
2100
2101 r = TABLE_delete_row(tables, row);
2102 if (r != ERROR_SUCCESS)
2103 goto done;
2104
2105 list_remove(&tv->table->entry);
2106 free_table(tv->table);
2107
2108 done:
2109 msiobj_release(&rec->hdr);
2110 tables->ops->delete(tables);
2111
2112 return r;
2113 }
2114
2115 static const MSIVIEWOPS table_ops =
2116 {
2117 TABLE_fetch_int,
2118 TABLE_fetch_stream,
2119 TABLE_get_row,
2120 TABLE_set_row,
2121 TABLE_insert_row,
2122 TABLE_delete_row,
2123 TABLE_execute,
2124 TABLE_close,
2125 TABLE_get_dimensions,
2126 TABLE_get_column_info,
2127 TABLE_modify,
2128 TABLE_delete,
2129 TABLE_find_matching_rows,
2130 TABLE_add_ref,
2131 TABLE_release,
2132 TABLE_add_column,
2133 TABLE_remove_column,
2134 NULL,
2135 TABLE_drop,
2136 };
2137
2138 UINT TABLE_CreateView( MSIDATABASE *db, LPCWSTR name, MSIVIEW **view )
2139 {
2140 MSITABLEVIEW *tv ;
2141 UINT r, sz;
2142
2143 TRACE("%p %s %p\n", db, debugstr_w(name), view );
2144
2145 if ( !strcmpW( name, szStreams ) )
2146 return STREAMS_CreateView( db, view );
2147 else if ( !strcmpW( name, szStorages ) )
2148 return STORAGES_CreateView( db, view );
2149
2150 sz = FIELD_OFFSET( MSITABLEVIEW, name[lstrlenW( name ) + 1] );
2151 tv = msi_alloc_zero( sz );
2152 if( !tv )
2153 return ERROR_FUNCTION_FAILED;
2154
2155 r = get_table( db, name, &tv->table );
2156 if( r != ERROR_SUCCESS )
2157 {
2158 msi_free( tv );
2159 WARN("table not found\n");
2160 return r;
2161 }
2162
2163 TRACE("table %p found with %d columns\n", tv->table, tv->table->col_count);
2164
2165 /* fill the structure */
2166 tv->view.ops = &table_ops;
2167 tv->db = db;
2168 tv->columns = tv->table->colinfo;
2169 tv->num_cols = tv->table->col_count;
2170 tv->row_size = msi_table_get_row_size( db, tv->table->colinfo, tv->table->col_count, LONG_STR_BYTES );
2171
2172 TRACE("%s one row is %d bytes\n", debugstr_w(name), tv->row_size );
2173
2174 *view = (MSIVIEW*) tv;
2175 lstrcpyW( tv->name, name );
2176
2177 return ERROR_SUCCESS;
2178 }
2179
2180 UINT MSI_CommitTables( MSIDATABASE *db )
2181 {
2182 UINT r, bytes_per_strref;
2183 HRESULT hr;
2184 MSITABLE *table = NULL;
2185
2186 TRACE("%p\n",db);
2187
2188 r = msi_save_string_table( db->strings, db->storage, &bytes_per_strref );
2189 if( r != ERROR_SUCCESS )
2190 {
2191 WARN("failed to save string table r=%08x\n",r);
2192 return r;
2193 }
2194
2195 LIST_FOR_EACH_ENTRY( table, &db->tables, MSITABLE, entry )
2196 {
2197 r = save_table( db, table, bytes_per_strref );
2198 if( r != ERROR_SUCCESS )
2199 {
2200 WARN("failed to save table %s (r=%08x)\n",
2201 debugstr_w(table->name), r);
2202 return r;
2203 }
2204 }
2205
2206 hr = IStorage_Commit( db->storage, 0 );
2207 if (FAILED( hr ))
2208 {
2209 WARN("failed to commit changes 0x%08x\n", hr);
2210 r = ERROR_FUNCTION_FAILED;
2211 }
2212 return r;
2213 }
2214
2215 MSICONDITION MSI_DatabaseIsTablePersistent( MSIDATABASE *db, LPCWSTR table )
2216 {
2217 MSITABLE *t;
2218 UINT r;
2219
2220 TRACE("%p %s\n", db, debugstr_w(table));
2221
2222 if (!table)
2223 return MSICONDITION_ERROR;
2224
2225 r = get_table( db, table, &t );
2226 if (r != ERROR_SUCCESS)
2227 return MSICONDITION_NONE;
2228
2229 return t->persistent;
2230 }
2231
2232 static UINT read_raw_int(const BYTE *data, UINT col, UINT bytes)
2233 {
2234 UINT ret = 0, i;
2235
2236 for (i = 0; i < bytes; i++)
2237 ret += (data[col + i] << i * 8);
2238
2239 return ret;
2240 }
2241
2242 static UINT msi_record_encoded_stream_name( const MSITABLEVIEW *tv, MSIRECORD *rec, LPWSTR *pstname )
2243 {
2244 LPWSTR stname = NULL, sval, p;
2245 DWORD len;
2246 UINT i, r;
2247
2248 TRACE("%p %p\n", tv, rec);
2249
2250 len = lstrlenW( tv->name ) + 1;
2251 stname = msi_alloc( len*sizeof(WCHAR) );
2252 if ( !stname )
2253 {
2254 r = ERROR_OUTOFMEMORY;
2255 goto err;
2256 }
2257
2258 lstrcpyW( stname, tv->name );
2259
2260 for ( i = 0; i < tv->num_cols; i++ )
2261 {
2262 if ( tv->columns[i].type & MSITYPE_KEY )
2263 {
2264 sval = msi_dup_record_field( rec, i + 1 );
2265 if ( !sval )
2266 {
2267 r = ERROR_OUTOFMEMORY;
2268 goto err;
2269 }
2270
2271 len += lstrlenW( szDot ) + lstrlenW ( sval );
2272 p = msi_realloc ( stname, len*sizeof(WCHAR) );
2273 if ( !p )
2274 {
2275 r = ERROR_OUTOFMEMORY;
2276 msi_free(sval);
2277 goto err;
2278 }
2279 stname = p;
2280
2281 lstrcatW( stname, szDot );
2282 lstrcatW( stname, sval );
2283
2284 msi_free( sval );
2285 }
2286 else
2287 continue;
2288 }
2289
2290 *pstname = encode_streamname( FALSE, stname );
2291 msi_free( stname );
2292
2293 return ERROR_SUCCESS;
2294
2295 err:
2296 msi_free ( stname );
2297 *pstname = NULL;
2298 return r;
2299 }
2300
2301 static MSIRECORD *msi_get_transform_record( const MSITABLEVIEW *tv, const string_table *st,
2302 IStorage *stg,
2303 const BYTE *rawdata, UINT bytes_per_strref )
2304 {
2305 UINT i, val, ofs = 0;
2306 USHORT mask;
2307 MSICOLUMNINFO *columns = tv->columns;
2308 MSIRECORD *rec;
2309
2310 mask = rawdata[0] | (rawdata[1] << 8);
2311 rawdata += 2;
2312
2313 rec = MSI_CreateRecord( tv->num_cols );
2314 if( !rec )
2315 return rec;
2316
2317 TRACE("row ->\n");
2318 for( i=0; i<tv->num_cols; i++ )
2319 {
2320 if ( (mask&1) && (i>=(mask>>8)) )
2321 break;
2322 /* all keys must be present */
2323 if ( (~mask&1) && (~columns[i].type & MSITYPE_KEY) && ((1<<i) & ~mask) )
2324 continue;
2325
2326 if( MSITYPE_IS_BINARY(tv->columns[i].type) )
2327 {
2328 LPWSTR encname;
2329 IStream *stm = NULL;
2330 UINT r;
2331
2332 ofs += bytes_per_column( tv->db, &columns[i], bytes_per_strref );
2333
2334 r = msi_record_encoded_stream_name( tv, rec, &encname );
2335 if ( r != ERROR_SUCCESS )
2336 return NULL;
2337
2338 r = IStorage_OpenStream( stg, encname, NULL,
2339 STGM_READ | STGM_SHARE_EXCLUSIVE, 0, &stm );
2340 if ( r != ERROR_SUCCESS )
2341 {
2342 msi_free( encname );
2343 return NULL;
2344 }
2345
2346 MSI_RecordSetStream( rec, i+1, stm );
2347 TRACE(" field %d [%s]\n", i+1, debugstr_w(encname));
2348 msi_free( encname );
2349 }
2350 else if( columns[i].type & MSITYPE_STRING )
2351 {
2352 int len;
2353 const WCHAR *sval;
2354
2355 val = read_raw_int(rawdata, ofs, bytes_per_strref);
2356 sval = msi_string_lookup( st, val, &len );
2357 msi_record_set_string( rec, i+1, sval, len );
2358 TRACE(" field %d [%s]\n", i+1, debugstr_wn(sval, len));
2359 ofs += bytes_per_strref;
2360 }
2361 else
2362 {
2363 UINT n = bytes_per_column( tv->db, &columns[i], bytes_per_strref );
2364 switch( n )
2365 {
2366 case 2:
2367 val = read_raw_int(rawdata, ofs, n);
2368 if (val)
2369 MSI_RecordSetInteger( rec, i+1, val-0x8000 );
2370 TRACE(" field %d [0x%04x]\n", i+1, val );
2371 break;
2372 case 4:
2373 val = read_raw_int(rawdata, ofs, n);
2374 if (val)
2375 MSI_RecordSetInteger( rec, i+1, val^0x80000000 );
2376 TRACE(" field %d [0x%08x]\n", i+1, val );
2377 break;
2378 default:
2379 ERR("oops - unknown column width %d\n", n);
2380 break;
2381 }
2382 ofs += n;
2383 }
2384 }
2385 return rec;
2386 }
2387
2388 static void dump_record( MSIRECORD *rec )
2389 {
2390 UINT i, n;
2391
2392 n = MSI_RecordGetFieldCount( rec );
2393 for( i=1; i<=n; i++ )
2394 {
2395 int len;
2396 const WCHAR *sval;
2397
2398 if( MSI_RecordIsNull( rec, i ) )
2399 TRACE("row -> []\n");
2400 else if( (sval = msi_record_get_string( rec, i, &len )) )
2401 TRACE("row -> [%s]\n", debugstr_wn(sval, len));
2402 else
2403 TRACE("row -> [0x%08x]\n", MSI_RecordGetInteger( rec, i ) );
2404 }
2405 }
2406
2407 static void dump_table( const string_table *st, const USHORT *rawdata, UINT rawsize )
2408 {
2409 UINT i;
2410 for (i = 0; i < rawsize / 2; i++)
2411 {
2412 int len;
2413 const WCHAR *sval = msi_string_lookup( st, rawdata[i], &len );
2414 MESSAGE(" %04x %s\n", rawdata[i], debugstr_wn(sval, len) );
2415 }
2416 }
2417
2418 static UINT* msi_record_to_row( const MSITABLEVIEW *tv, MSIRECORD *rec )
2419 {
2420 UINT i, r, *data;
2421
2422 data = msi_alloc( tv->num_cols *sizeof (UINT) );
2423 for( i=0; i<tv->num_cols; i++ )
2424 {
2425 data[i] = 0;
2426
2427 if ( ~tv->columns[i].type & MSITYPE_KEY )
2428 continue;
2429
2430 /* turn the transform column value into a row value */
2431 if ( ( tv->columns[i].type & MSITYPE_STRING ) &&
2432 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2433 {
2434 int len;
2435 const WCHAR *str = msi_record_get_string( rec, i+1, &len );
2436 if (str)
2437 {
2438 r = msi_string2id( tv->db->strings, str, len, &data[i] );
2439
2440 /* if there's no matching string in the string table,
2441 these keys can't match any record, so fail now. */
2442 if (r != ERROR_SUCCESS)
2443 {
2444 msi_free( data );
2445 return NULL;
2446 }
2447 }
2448 else data[i] = 0;
2449 }
2450 else
2451 {
2452 data[i] = MSI_RecordGetInteger( rec, i+1 );
2453
2454 if (data[i] == MSI_NULL_INTEGER)
2455 data[i] = 0;
2456 else if ((tv->columns[i].type&0xff) == 2)
2457 data[i] += 0x8000;
2458 else
2459 data[i] += 0x80000000;
2460 }
2461 }
2462 return data;
2463 }
2464
2465 static UINT msi_row_matches( MSITABLEVIEW *tv, UINT row, const UINT *data, UINT *column )
2466 {
2467 UINT i, r, x, ret = ERROR_FUNCTION_FAILED;
2468
2469 for( i=0; i<tv->num_cols; i++ )
2470 {
2471 if ( ~tv->columns[i].type & MSITYPE_KEY )
2472 continue;
2473
2474 /* turn the transform column value into a row value */
2475 r = TABLE_fetch_int( &tv->view, row, i+1, &x );
2476 if ( r != ERROR_SUCCESS )
2477 {
2478 ERR("TABLE_fetch_int shouldn't fail here\n");
2479 break;
2480 }
2481
2482 /* if this key matches, move to the next column */
2483 if ( x != data[i] )
2484 {
2485 ret = ERROR_FUNCTION_FAILED;
2486 break;
2487 }
2488 if (column) *column = i;
2489 ret = ERROR_SUCCESS;
2490 }
2491 return ret;
2492 }
2493
2494 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row, UINT *column )
2495 {
2496 UINT i, r = ERROR_FUNCTION_FAILED, *data;
2497
2498 data = msi_record_to_row( tv, rec );
2499 if( !data )
2500 return r;
2501 for( i = 0; i < tv->table->row_count; i++ )
2502 {
2503 r = msi_row_matches( tv, i, data, column );
2504 if( r == ERROR_SUCCESS )
2505 {
2506 *row = i;
2507 break;
2508 }
2509 }
2510 msi_free( data );
2511 return r;
2512 }
2513
2514 typedef struct
2515 {
2516 struct list entry;
2517 LPWSTR name;
2518 } TRANSFORMDATA;
2519
2520 static UINT msi_table_load_transform( MSIDATABASE *db, IStorage *stg,
2521 string_table *st, TRANSFORMDATA *transform,
2522 UINT bytes_per_strref )
2523 {
2524 BYTE *rawdata = NULL;
2525 MSITABLEVIEW *tv = NULL;
2526 UINT r, n, sz, i, mask, num_cols, colcol = 0, rawsize = 0;
2527 MSIRECORD *rec = NULL;
2528 WCHAR coltable[32];
2529 const WCHAR *name;
2530
2531 if (!transform)
2532 return ERROR_SUCCESS;
2533
2534 name = transform->name;
2535
2536 coltable[0] = 0;
2537 TRACE("%p %p %p %s\n", db, stg, st, debugstr_w(name) );
2538
2539 /* read the transform data */
2540 read_stream_data( stg, name, TRUE, &rawdata, &rawsize );
2541 if ( !rawdata )
2542 {
2543 TRACE("table %s empty\n", debugstr_w(name) );
2544 return ERROR_INVALID_TABLE;
2545 }
2546
2547 /* create a table view */
2548 r = TABLE_CreateView( db, name, (MSIVIEW**) &tv );
2549 if( r != ERROR_SUCCESS )
2550 goto err;
2551
2552 r = tv->view.ops->execute( &tv->view, NULL );
2553 if( r != ERROR_SUCCESS )
2554 goto err;
2555
2556 TRACE("name = %s columns = %u row_size = %u raw size = %u\n",
2557 debugstr_w(name), tv->num_cols, tv->row_size, rawsize );
2558
2559 /* interpret the data */
2560 for (n = 0; n < rawsize;)
2561 {
2562 mask = rawdata[n] | (rawdata[n + 1] << 8);
2563 if (mask & 1)
2564 {
2565 /*
2566 * if the low bit is set, columns are continuous and
2567 * the number of columns is specified in the high byte
2568 */
2569 sz = 2;
2570 num_cols = mask >> 8;
2571 for (i = 0; i < num_cols; i++)
2572 {
2573 if( (tv->columns[i].type & MSITYPE_STRING) &&
2574 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2575 sz += bytes_per_strref;
2576 else
2577 sz += bytes_per_column( tv->db, &tv->columns[i], bytes_per_strref );
2578 }
2579 }
2580 else
2581 {
2582 /*
2583 * If the low bit is not set, mask is a bitmask.
2584 * Excepting for key fields, which are always present,
2585 * each bit indicates that a field is present in the transform record.
2586 *
2587 * mask == 0 is a special case ... only the keys will be present
2588 * and it means that this row should be deleted.
2589 */
2590 sz = 2;
2591 num_cols = tv->num_cols;
2592 for (i = 0; i < num_cols; i++)
2593 {
2594 if ((tv->columns[i].type & MSITYPE_KEY) || ((1 << i) & mask))
2595 {
2596 if ((tv->columns[i].type & MSITYPE_STRING) &&
2597 !MSITYPE_IS_BINARY(tv->columns[i].type))
2598 sz += bytes_per_strref;
2599 else
2600 sz += bytes_per_column( tv->db, &tv->columns[i], bytes_per_strref );
2601 }
2602 }
2603 }
2604
2605 /* check we didn't run of the end of the table */
2606 if (n + sz > rawsize)
2607 {
2608 ERR("borked.\n");
2609 dump_table( st, (USHORT *)rawdata, rawsize );
2610 break;
2611 }
2612
2613 rec = msi_get_transform_record( tv, st, stg, &rawdata[n], bytes_per_strref );
2614 if (rec)
2615 {
2616 WCHAR table[32];
2617 DWORD sz = 32;
2618 UINT number = MSI_NULL_INTEGER;
2619 UINT row = 0;
2620
2621 if (!strcmpW( name, szColumns ))
2622 {
2623 MSI_RecordGetStringW( rec, 1, table, &sz );
2624 number = MSI_RecordGetInteger( rec, 2 );
2625
2626 /*
2627 * Native msi seems writes nul into the Number (2nd) column of
2628 * the _Columns table, only when the columns are from a new table
2629 */
2630 if ( number == MSI_NULL_INTEGER )
2631 {
2632 /* reset the column number on a new table */
2633 if (strcmpW( coltable, table ))
2634 {
2635 colcol = 0;
2636 lstrcpyW( coltable, table );
2637 }
2638
2639 /* fix nul column numbers */
2640 MSI_RecordSetInteger( rec, 2, ++colcol );
2641 }
2642 }
2643
2644 if (TRACE_ON(msidb)) dump_record( rec );
2645
2646 r = msi_table_find_row( tv, rec, &row, NULL );
2647 if (r == ERROR_SUCCESS)
2648 {
2649 if (!mask)
2650 {
2651 TRACE("deleting row [%d]:\n", row);
2652 r = TABLE_delete_row( &tv->view, row );
2653 if (r != ERROR_SUCCESS)
2654 WARN("failed to delete row %u\n", r);
2655 }
2656 else if (mask & 1)
2657 {
2658 TRACE("modifying full row [%d]:\n", row);
2659 r = TABLE_set_row( &tv->view, row, rec, (1 << tv->num_cols) - 1 );
2660 if (r != ERROR_SUCCESS)
2661 WARN("failed to modify row %u\n", r);
2662 }
2663 else
2664 {
2665 TRACE("modifying masked row [%d]:\n", row);
2666 r = TABLE_set_row( &tv->view, row, rec, mask );
2667 if (r != ERROR_SUCCESS)
2668 WARN("failed to modify row %u\n", r);
2669 }
2670 }
2671 else
2672 {
2673 TRACE("inserting row\n");
2674 r = TABLE_insert_row( &tv->view, rec, -1, FALSE );
2675 if (r != ERROR_SUCCESS)
2676 WARN("failed to insert row %u\n", r);
2677 }
2678
2679 if (number != MSI_NULL_INTEGER && !strcmpW( name, szColumns ))
2680 msi_update_table_columns( db, table );
2681
2682 msiobj_release( &rec->hdr );
2683 }
2684
2685 n += sz;
2686 }
2687
2688 err:
2689 /* no need to free the table, it's associated with the database */
2690 msi_free( rawdata );
2691 if( tv )
2692 tv->view.ops->delete( &tv->view );
2693
2694 return ERROR_SUCCESS;
2695 }
2696
2697 /*
2698 * msi_table_apply_transform
2699 *
2700 * Enumerate the table transforms in a transform storage and apply each one.
2701 */
2702 UINT msi_table_apply_transform( MSIDATABASE *db, IStorage *stg )
2703 {
2704 struct list transforms;
2705 IEnumSTATSTG *stgenum = NULL;
2706 TRANSFORMDATA *transform;
2707 TRANSFORMDATA *tables = NULL, *columns = NULL;
2708 HRESULT r;
2709 STATSTG stat;
2710 string_table *strings;
2711 UINT ret = ERROR_FUNCTION_FAILED;
2712 UINT bytes_per_strref;
2713
2714 TRACE("%p %p\n", db, stg );
2715
2716 strings = msi_load_string_table( stg, &bytes_per_strref );
2717 if( !strings )
2718 goto end;
2719
2720 r = IStorage_EnumElements( stg, 0, NULL, 0, &stgenum );
2721 if( FAILED( r ) )
2722 goto end;
2723
2724 list_init(&transforms);
2725
2726 while ( TRUE )
2727 {
2728 MSITABLEVIEW *tv = NULL;
2729 WCHAR name[0x40];
2730 ULONG count = 0;
2731
2732 r = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
2733 if ( FAILED( r ) || !count )
2734 break;
2735
2736 decode_streamname( stat.pwcsName, name );
2737 CoTaskMemFree( stat.pwcsName );
2738 if ( name[0] != 0x4840 )
2739 continue;
2740
2741 if ( !strcmpW( name+1, szStringPool ) ||
2742 !strcmpW( name+1, szStringData ) )
2743 continue;
2744
2745 transform = msi_alloc_zero( sizeof(TRANSFORMDATA) );
2746 if ( !transform )
2747 break;
2748
2749 list_add_tail( &transforms, &transform->entry );
2750
2751 transform->name = strdupW( name + 1 );
2752
2753 if ( !strcmpW( transform->name, szTables ) )
2754 tables = transform;
2755 else if (!strcmpW( transform->name, szColumns ) )
2756 columns = transform;
2757
2758 TRACE("transform contains stream %s\n", debugstr_w(name));
2759
2760 /* load the table */
2761 r = TABLE_CreateView( db, transform->name, (MSIVIEW**) &tv );
2762 if( r != ERROR_SUCCESS )
2763 continue;
2764
2765 r = tv->view.ops->execute( &tv->view, NULL );
2766 if( r != ERROR_SUCCESS )
2767 {
2768 tv->view.ops->delete( &tv->view );
2769 continue;
2770 }
2771
2772 tv->view.ops->delete( &tv->view );
2773 }
2774
2775 /*
2776 * Apply _Tables and _Columns transforms first so that
2777 * the table metadata is correct, and empty tables exist.
2778 */
2779 ret = msi_table_load_transform( db, stg, strings, tables, bytes_per_strref );
2780 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2781 goto end;
2782
2783 ret = msi_table_load_transform( db, stg, strings, columns, bytes_per_strref );
2784 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2785 goto end;
2786
2787 ret = ERROR_SUCCESS;
2788
2789 while ( !list_empty( &transforms ) )
2790 {
2791 transform = LIST_ENTRY( list_head( &transforms ), TRANSFORMDATA, entry );
2792
2793 if ( strcmpW( transform->name, szColumns ) &&
2794 strcmpW( transform->name, szTables ) &&
2795 ret == ERROR_SUCCESS )
2796 {
2797 ret = msi_table_load_transform( db, stg, strings, transform, bytes_per_strref );
2798 }
2799
2800 list_remove( &transform->entry );
2801 msi_free( transform->name );
2802 msi_free( transform );
2803 }
2804
2805 if ( ret == ERROR_SUCCESS )
2806 append_storage_to_db( db, stg );
2807
2808 end:
2809 if ( stgenum )
2810 IEnumSTATSTG_Release( stgenum );
2811 if ( strings )
2812 msi_destroy_stringtable( strings );
2813
2814 return ret;
2815 }
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