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dd25fbb2cde52927ce90a34eb1483b52b002c60d
[reactos.git] / reactos / dll / win32 / msi / table.c
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's 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_string2idW( db->strings, szTableName, &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_id( db->strings, table_id );
697 colinfo[col - 1].number = col;
698 colinfo[col - 1].colname = msi_string_lookup_id( db->strings, id );
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_id( db->strings, table_id );
767 table->colinfo[ i ].number = i + 1;
768 table->colinfo[ i ].colname = msi_string_lookup_id( db->strings, col_id );
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_string2idW( db->strings, name, &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_id( tv->db->strings, ival );
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
1263 if ( (iField <= 0) ||
1264 (iField > tv->num_cols) ||
1265 MSI_RecordIsNull( rec, iField ) )
1266 return ERROR_FUNCTION_FAILED;
1267
1268 columninfo = tv->columns[ iField - 1 ];
1269
1270 if ( MSITYPE_IS_BINARY(columninfo.type) )
1271 {
1272 *pvalue = 1; /* refers to the first key column */
1273 }
1274 else if ( columninfo.type & MSITYPE_STRING )
1275 {
1276 LPCWSTR sval = MSI_RecordGetString( rec, iField );
1277 if (sval)
1278 {
1279 r = msi_string2idW(tv->db->strings, sval, pvalue);
1280 if (r != ERROR_SUCCESS)
1281 return ERROR_NOT_FOUND;
1282 }
1283 else *pvalue = 0;
1284 }
1285 else if ( bytes_per_column( tv->db, &columninfo, LONG_STR_BYTES ) == 2 )
1286 {
1287 *pvalue = 0x8000 + MSI_RecordGetInteger( rec, iField );
1288 if ( *pvalue & 0xffff0000 )
1289 {
1290 ERR("field %u value %d out of range\n", iField, *pvalue - 0x8000);
1291 return ERROR_FUNCTION_FAILED;
1292 }
1293 }
1294 else
1295 {
1296 INT ival = MSI_RecordGetInteger( rec, iField );
1297 *pvalue = ival ^ 0x80000000;
1298 }
1299
1300 return ERROR_SUCCESS;
1301 }
1302
1303 static UINT TABLE_set_row( struct tagMSIVIEW *view, UINT row, MSIRECORD *rec, UINT mask )
1304 {
1305 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1306 UINT i, val, r = ERROR_SUCCESS;
1307
1308 if ( !tv->table )
1309 return ERROR_INVALID_PARAMETER;
1310
1311 /* test if any of the mask bits are invalid */
1312 if ( mask >= (1<<tv->num_cols) )
1313 return ERROR_INVALID_PARAMETER;
1314
1315 for ( i = 0; i < tv->num_cols; i++ )
1316 {
1317 BOOL persistent;
1318
1319 /* only update the fields specified in the mask */
1320 if ( !(mask&(1<<i)) )
1321 continue;
1322
1323 persistent = (tv->table->persistent != MSICONDITION_FALSE) &&
1324 (tv->table->data_persistent[row]);
1325 /* FIXME: should we allow updating keys? */
1326
1327 val = 0;
1328 if ( !MSI_RecordIsNull( rec, i + 1 ) )
1329 {
1330 r = get_table_value_from_record (tv, rec, i + 1, &val);
1331 if ( MSITYPE_IS_BINARY(tv->columns[ i ].type) )
1332 {
1333 IStream *stm;
1334 LPWSTR stname;
1335
1336 if ( r != ERROR_SUCCESS )
1337 return ERROR_FUNCTION_FAILED;
1338
1339 r = MSI_RecordGetIStream( rec, i + 1, &stm );
1340 if ( r != ERROR_SUCCESS )
1341 return r;
1342
1343 r = msi_stream_name( tv, row, &stname );
1344 if ( r != ERROR_SUCCESS )
1345 {
1346 IStream_Release( stm );
1347 return r;
1348 }
1349
1350 r = msi_addstreamW( tv->db, stname, stm );
1351 IStream_Release( stm );
1352 msi_free ( stname );
1353
1354 if ( r != ERROR_SUCCESS )
1355 return r;
1356 }
1357 else if ( tv->columns[i].type & MSITYPE_STRING )
1358 {
1359 UINT x;
1360
1361 if ( r != ERROR_SUCCESS )
1362 {
1363 LPCWSTR sval = MSI_RecordGetString( rec, i + 1 );
1364 val = msi_addstringW( tv->db->strings, sval, -1, 1,
1365 persistent ? StringPersistent : StringNonPersistent );
1366 }
1367 else
1368 {
1369 TABLE_fetch_int(&tv->view, row, i + 1, &x);
1370 if (val == x)
1371 continue;
1372 }
1373 }
1374 else
1375 {
1376 if ( r != ERROR_SUCCESS )
1377 return ERROR_FUNCTION_FAILED;
1378 }
1379 }
1380
1381 r = TABLE_set_int( tv, row, i+1, val );
1382 if ( r != ERROR_SUCCESS )
1383 break;
1384 }
1385 return r;
1386 }
1387
1388 static UINT table_create_new_row( struct tagMSIVIEW *view, UINT *num, BOOL temporary )
1389 {
1390 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1391 BYTE **p, *row;
1392 BOOL *b;
1393 UINT sz;
1394 BYTE ***data_ptr;
1395 BOOL **data_persist_ptr;
1396 UINT *row_count;
1397
1398 TRACE("%p %s\n", view, temporary ? "TRUE" : "FALSE");
1399
1400 if( !tv->table )
1401 return ERROR_INVALID_PARAMETER;
1402
1403 row = msi_alloc_zero( tv->row_size );
1404 if( !row )
1405 return ERROR_NOT_ENOUGH_MEMORY;
1406
1407 row_count = &tv->table->row_count;
1408 data_ptr = &tv->table->data;
1409 data_persist_ptr = &tv->table->data_persistent;
1410 if (*num == -1)
1411 *num = tv->table->row_count;
1412
1413 sz = (*row_count + 1) * sizeof (BYTE*);
1414 if( *data_ptr )
1415 p = msi_realloc( *data_ptr, sz );
1416 else
1417 p = msi_alloc( sz );
1418 if( !p )
1419 {
1420 msi_free( row );
1421 return ERROR_NOT_ENOUGH_MEMORY;
1422 }
1423
1424 sz = (*row_count + 1) * sizeof (BOOL);
1425 if( *data_persist_ptr )
1426 b = msi_realloc( *data_persist_ptr, sz );
1427 else
1428 b = msi_alloc( sz );
1429 if( !b )
1430 {
1431 msi_free( row );
1432 msi_free( p );
1433 return ERROR_NOT_ENOUGH_MEMORY;
1434 }
1435
1436 *data_ptr = p;
1437 (*data_ptr)[*row_count] = row;
1438
1439 *data_persist_ptr = b;
1440 (*data_persist_ptr)[*row_count] = !temporary;
1441
1442 (*row_count)++;
1443
1444 return ERROR_SUCCESS;
1445 }
1446
1447 static UINT TABLE_execute( struct tagMSIVIEW *view, MSIRECORD *record )
1448 {
1449 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1450
1451 TRACE("%p %p\n", tv, record);
1452
1453 TRACE("There are %d columns\n", tv->num_cols );
1454
1455 return ERROR_SUCCESS;
1456 }
1457
1458 static UINT TABLE_close( struct tagMSIVIEW *view )
1459 {
1460 TRACE("%p\n", view );
1461
1462 return ERROR_SUCCESS;
1463 }
1464
1465 static UINT TABLE_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols)
1466 {
1467 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1468
1469 TRACE("%p %p %p\n", view, rows, cols );
1470
1471 if( cols )
1472 *cols = tv->num_cols;
1473 if( rows )
1474 {
1475 if( !tv->table )
1476 return ERROR_INVALID_PARAMETER;
1477 *rows = tv->table->row_count;
1478 }
1479
1480 return ERROR_SUCCESS;
1481 }
1482
1483 static UINT TABLE_get_column_info( struct tagMSIVIEW *view,
1484 UINT n, LPCWSTR *name, UINT *type, BOOL *temporary,
1485 LPCWSTR *table_name )
1486 {
1487 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1488
1489 TRACE("%p %d %p %p\n", tv, n, name, type );
1490
1491 if( ( n == 0 ) || ( n > tv->num_cols ) )
1492 return ERROR_INVALID_PARAMETER;
1493
1494 if( name )
1495 {
1496 *name = tv->columns[n-1].colname;
1497 if( !*name )
1498 return ERROR_FUNCTION_FAILED;
1499 }
1500
1501 if( table_name )
1502 {
1503 *table_name = tv->columns[n-1].tablename;
1504 if( !*table_name )
1505 return ERROR_FUNCTION_FAILED;
1506 }
1507
1508 if( type )
1509 *type = tv->columns[n-1].type;
1510
1511 if( temporary )
1512 *temporary = tv->columns[n-1].temporary;
1513
1514 return ERROR_SUCCESS;
1515 }
1516
1517 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row, UINT *column );
1518
1519 static UINT table_validate_new( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *column )
1520 {
1521 UINT r, row, i;
1522
1523 /* check there's no null values where they're not allowed */
1524 for( i = 0; i < tv->num_cols; i++ )
1525 {
1526 if ( tv->columns[i].type & MSITYPE_NULLABLE )
1527 continue;
1528
1529 if ( MSITYPE_IS_BINARY(tv->columns[i].type) )
1530 TRACE("skipping binary column\n");
1531 else if ( tv->columns[i].type & MSITYPE_STRING )
1532 {
1533 LPCWSTR str;
1534
1535 str = MSI_RecordGetString( rec, i+1 );
1536 if (str == NULL || str[0] == 0)
1537 {
1538 if (column) *column = i;
1539 return ERROR_INVALID_DATA;
1540 }
1541 }
1542 else
1543 {
1544 UINT n;
1545
1546 n = MSI_RecordGetInteger( rec, i+1 );
1547 if (n == MSI_NULL_INTEGER)
1548 {
1549 if (column) *column = i;
1550 return ERROR_INVALID_DATA;
1551 }
1552 }
1553 }
1554
1555 /* check there's no duplicate keys */
1556 r = msi_table_find_row( tv, rec, &row, column );
1557 if (r == ERROR_SUCCESS)
1558 return ERROR_FUNCTION_FAILED;
1559
1560 return ERROR_SUCCESS;
1561 }
1562
1563 static int compare_record( MSITABLEVIEW *tv, UINT row, MSIRECORD *rec )
1564 {
1565 UINT r, i, ivalue, x;
1566
1567 for (i = 0; i < tv->num_cols; i++ )
1568 {
1569 if (!(tv->columns[i].type & MSITYPE_KEY)) continue;
1570
1571 r = get_table_value_from_record( tv, rec, i + 1, &ivalue );
1572 if (r != ERROR_SUCCESS)
1573 return 1;
1574
1575 r = TABLE_fetch_int( &tv->view, row, i + 1, &x );
1576 if (r != ERROR_SUCCESS)
1577 {
1578 WARN("TABLE_fetch_int should not fail here %u\n", r);
1579 return -1;
1580 }
1581 if (ivalue > x)
1582 {
1583 return 1;
1584 }
1585 else if (ivalue == x)
1586 {
1587 if (i < tv->num_cols - 1) continue;
1588 return 0;
1589 }
1590 else
1591 return -1;
1592 }
1593 return 1;
1594 }
1595
1596 static int find_insert_index( MSITABLEVIEW *tv, MSIRECORD *rec )
1597 {
1598 int idx, c, low = 0, high = tv->table->row_count - 1;
1599
1600 TRACE("%p %p\n", tv, rec);
1601
1602 while (low <= high)
1603 {
1604 idx = (low + high) / 2;
1605 c = compare_record( tv, idx, rec );
1606
1607 if (c < 0)
1608 high = idx - 1;
1609 else if (c > 0)
1610 low = idx + 1;
1611 else
1612 {
1613 TRACE("found %u\n", idx);
1614 return idx;
1615 }
1616 }
1617 TRACE("found %u\n", high + 1);
1618 return high + 1;
1619 }
1620
1621 static UINT TABLE_insert_row( struct tagMSIVIEW *view, MSIRECORD *rec, UINT row, BOOL temporary )
1622 {
1623 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1624 UINT i, r;
1625
1626 TRACE("%p %p %s\n", tv, rec, temporary ? "TRUE" : "FALSE" );
1627
1628 /* check that the key is unique - can we find a matching row? */
1629 r = table_validate_new( tv, rec, NULL );
1630 if( r != ERROR_SUCCESS )
1631 return ERROR_FUNCTION_FAILED;
1632
1633 if (row == -1)
1634 row = find_insert_index( tv, rec );
1635
1636 r = table_create_new_row( view, &row, temporary );
1637 TRACE("insert_row returned %08x\n", r);
1638 if( r != ERROR_SUCCESS )
1639 return r;
1640
1641 /* shift the rows to make room for the new row */
1642 for (i = tv->table->row_count - 1; i > row; i--)
1643 {
1644 memmove(&(tv->table->data[i][0]),
1645 &(tv->table->data[i - 1][0]), tv->row_size);
1646 tv->table->data_persistent[i] = tv->table->data_persistent[i - 1];
1647 }
1648
1649 /* Re-set the persistence flag */
1650 tv->table->data_persistent[row] = !temporary;
1651 return TABLE_set_row( view, row, rec, (1<<tv->num_cols) - 1 );
1652 }
1653
1654 static UINT TABLE_delete_row( struct tagMSIVIEW *view, UINT row )
1655 {
1656 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1657 UINT r, num_rows, num_cols, i;
1658
1659 TRACE("%p %d\n", tv, row);
1660
1661 if ( !tv->table )
1662 return ERROR_INVALID_PARAMETER;
1663
1664 r = TABLE_get_dimensions( view, &num_rows, &num_cols );
1665 if ( r != ERROR_SUCCESS )
1666 return r;
1667
1668 if ( row >= num_rows )
1669 return ERROR_FUNCTION_FAILED;
1670
1671 num_rows = tv->table->row_count;
1672 tv->table->row_count--;
1673
1674 /* reset the hash tables */
1675 for (i = 0; i < tv->num_cols; i++)
1676 {
1677 msi_free( tv->columns[i].hash_table );
1678 tv->columns[i].hash_table = NULL;
1679 }
1680
1681 for (i = row + 1; i < num_rows; i++)
1682 {
1683 memcpy(tv->table->data[i - 1], tv->table->data[i], tv->row_size);
1684 tv->table->data_persistent[i - 1] = tv->table->data_persistent[i];
1685 }
1686
1687 msi_free(tv->table->data[num_rows - 1]);
1688
1689 return ERROR_SUCCESS;
1690 }
1691
1692 static UINT msi_table_update(struct tagMSIVIEW *view, MSIRECORD *rec, UINT row)
1693 {
1694 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1695 UINT r, new_row;
1696
1697 /* FIXME: MsiViewFetch should set rec index 0 to some ID that
1698 * sets the fetched record apart from other records
1699 */
1700
1701 if (!tv->table)
1702 return ERROR_INVALID_PARAMETER;
1703
1704 r = msi_table_find_row(tv, rec, &new_row, NULL);
1705 if (r != ERROR_SUCCESS)
1706 {
1707 ERR("can't find row to modify\n");
1708 return ERROR_FUNCTION_FAILED;
1709 }
1710
1711 /* the row cannot be changed */
1712 if (row != new_row + 1)
1713 return ERROR_FUNCTION_FAILED;
1714
1715 return TABLE_set_row(view, new_row, rec, (1 << tv->num_cols) - 1);
1716 }
1717
1718 static UINT msi_table_assign(struct tagMSIVIEW *view, MSIRECORD *rec)
1719 {
1720 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1721 UINT r, row;
1722
1723 if (!tv->table)
1724 return ERROR_INVALID_PARAMETER;
1725
1726 r = msi_table_find_row(tv, rec, &row, NULL);
1727 if (r == ERROR_SUCCESS)
1728 return TABLE_set_row(view, row, rec, (1 << tv->num_cols) - 1);
1729 else
1730 return TABLE_insert_row( view, rec, -1, FALSE );
1731 }
1732
1733 static UINT modify_delete_row( struct tagMSIVIEW *view, MSIRECORD *rec )
1734 {
1735 MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
1736 UINT row, r;
1737
1738 r = msi_table_find_row(tv, rec, &row, NULL);
1739 if (r != ERROR_SUCCESS)
1740 return r;
1741
1742 return TABLE_delete_row(view, row);
1743 }
1744
1745 static UINT msi_refresh_record( struct tagMSIVIEW *view, MSIRECORD *rec, UINT row )
1746 {
1747 MSIRECORD *curr;
1748 UINT r, i, count;
1749
1750 r = TABLE_get_row(view, row - 1, &curr);
1751 if (r != ERROR_SUCCESS)
1752 return r;
1753
1754 /* Close the original record */
1755 MSI_CloseRecord(&rec->hdr);
1756
1757 count = MSI_RecordGetFieldCount(rec);
1758 for (i = 0; i < count; i++)
1759 MSI_RecordCopyField(curr, i + 1, rec, i + 1);
1760
1761 msiobj_release(&curr->hdr);
1762 return ERROR_SUCCESS;
1763 }
1764
1765 static UINT TABLE_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode,
1766 MSIRECORD *rec, UINT row)
1767 {
1768 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1769 UINT r, frow, column;
1770
1771 TRACE("%p %d %p\n", view, eModifyMode, rec );
1772
1773 switch (eModifyMode)
1774 {
1775 case MSIMODIFY_DELETE:
1776 r = modify_delete_row( view, rec );
1777 break;
1778 case MSIMODIFY_VALIDATE_NEW:
1779 r = table_validate_new( tv, rec, &column );
1780 if (r != ERROR_SUCCESS)
1781 {
1782 tv->view.error = MSIDBERROR_DUPLICATEKEY;
1783 tv->view.error_column = tv->columns[column].colname;
1784 r = ERROR_INVALID_DATA;
1785 }
1786 break;
1787
1788 case MSIMODIFY_INSERT:
1789 r = table_validate_new( tv, rec, NULL );
1790 if (r != ERROR_SUCCESS)
1791 break;
1792 r = TABLE_insert_row( view, rec, -1, FALSE );
1793 break;
1794
1795 case MSIMODIFY_INSERT_TEMPORARY:
1796 r = table_validate_new( tv, rec, NULL );
1797 if (r != ERROR_SUCCESS)
1798 break;
1799 r = TABLE_insert_row( view, rec, -1, TRUE );
1800 break;
1801
1802 case MSIMODIFY_REFRESH:
1803 r = msi_refresh_record( view, rec, row );
1804 break;
1805
1806 case MSIMODIFY_UPDATE:
1807 r = msi_table_update( view, rec, row );
1808 break;
1809
1810 case MSIMODIFY_ASSIGN:
1811 r = msi_table_assign( view, rec );
1812 break;
1813
1814 case MSIMODIFY_MERGE:
1815 /* check row that matches this record */
1816 r = msi_table_find_row( tv, rec, &frow, &column );
1817 if (r != ERROR_SUCCESS)
1818 {
1819 r = table_validate_new( tv, rec, NULL );
1820 if (r == ERROR_SUCCESS)
1821 r = TABLE_insert_row( view, rec, -1, FALSE );
1822 }
1823 break;
1824
1825 case MSIMODIFY_REPLACE:
1826 case MSIMODIFY_VALIDATE:
1827 case MSIMODIFY_VALIDATE_FIELD:
1828 case MSIMODIFY_VALIDATE_DELETE:
1829 FIXME("%p %d %p - mode not implemented\n", view, eModifyMode, rec );
1830 r = ERROR_CALL_NOT_IMPLEMENTED;
1831 break;
1832
1833 default:
1834 r = ERROR_INVALID_DATA;
1835 }
1836
1837 return r;
1838 }
1839
1840 static UINT TABLE_delete( struct tagMSIVIEW *view )
1841 {
1842 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1843
1844 TRACE("%p\n", view );
1845
1846 tv->table = NULL;
1847 tv->columns = NULL;
1848
1849 msi_free( tv );
1850
1851 return ERROR_SUCCESS;
1852 }
1853
1854 static UINT TABLE_find_matching_rows( struct tagMSIVIEW *view, UINT col,
1855 UINT val, UINT *row, MSIITERHANDLE *handle )
1856 {
1857 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1858 const MSICOLUMNHASHENTRY *entry;
1859
1860 TRACE("%p, %d, %u, %p\n", view, col, val, *handle);
1861
1862 if( !tv->table )
1863 return ERROR_INVALID_PARAMETER;
1864
1865 if( (col==0) || (col > tv->num_cols) )
1866 return ERROR_INVALID_PARAMETER;
1867
1868 if( !tv->columns[col-1].hash_table )
1869 {
1870 UINT i;
1871 UINT num_rows = tv->table->row_count;
1872 MSICOLUMNHASHENTRY **hash_table;
1873 MSICOLUMNHASHENTRY *new_entry;
1874
1875 if( tv->columns[col-1].offset >= tv->row_size )
1876 {
1877 ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
1878 ERR("%p %p\n", tv, tv->columns );
1879 return ERROR_FUNCTION_FAILED;
1880 }
1881
1882 /* allocate contiguous memory for the table and its entries so we
1883 * don't have to do an expensive cleanup */
1884 hash_table = msi_alloc(MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*) +
1885 num_rows * sizeof(MSICOLUMNHASHENTRY));
1886 if (!hash_table)
1887 return ERROR_OUTOFMEMORY;
1888
1889 memset(hash_table, 0, MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*));
1890 tv->columns[col-1].hash_table = hash_table;
1891
1892 new_entry = (MSICOLUMNHASHENTRY *)(hash_table + MSITABLE_HASH_TABLE_SIZE);
1893
1894 for (i = 0; i < num_rows; i++, new_entry++)
1895 {
1896 UINT row_value;
1897
1898 if (view->ops->fetch_int( view, i, col, &row_value ) != ERROR_SUCCESS)
1899 continue;
1900
1901 new_entry->next = NULL;
1902 new_entry->value = row_value;
1903 new_entry->row = i;
1904 if (hash_table[row_value % MSITABLE_HASH_TABLE_SIZE])
1905 {
1906 MSICOLUMNHASHENTRY *prev_entry = hash_table[row_value % MSITABLE_HASH_TABLE_SIZE];
1907 while (prev_entry->next)
1908 prev_entry = prev_entry->next;
1909 prev_entry->next = new_entry;
1910 }
1911 else
1912 hash_table[row_value % MSITABLE_HASH_TABLE_SIZE] = new_entry;
1913 }
1914 }
1915
1916 if( !*handle )
1917 entry = tv->columns[col-1].hash_table[val % MSITABLE_HASH_TABLE_SIZE];
1918 else
1919 entry = (*handle)->next;
1920
1921 while (entry && entry->value != val)
1922 entry = entry->next;
1923
1924 *handle = entry;
1925 if (!entry)
1926 return ERROR_NO_MORE_ITEMS;
1927
1928 *row = entry->row;
1929
1930 return ERROR_SUCCESS;
1931 }
1932
1933 static UINT TABLE_add_ref(struct tagMSIVIEW *view)
1934 {
1935 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1936 UINT i;
1937
1938 TRACE("%p %d\n", view, tv->table->ref_count);
1939
1940 for (i = 0; i < tv->table->col_count; i++)
1941 {
1942 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
1943 InterlockedIncrement(&tv->table->colinfo[i].ref_count);
1944 }
1945
1946 return InterlockedIncrement(&tv->table->ref_count);
1947 }
1948
1949 static UINT TABLE_remove_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number)
1950 {
1951 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1952 MSIRECORD *rec = NULL;
1953 MSIVIEW *columns = NULL;
1954 UINT row, r;
1955
1956 rec = MSI_CreateRecord(2);
1957 if (!rec)
1958 return ERROR_OUTOFMEMORY;
1959
1960 MSI_RecordSetStringW(rec, 1, table);
1961 MSI_RecordSetInteger(rec, 2, number);
1962
1963 r = TABLE_CreateView(tv->db, szColumns, &columns);
1964 if (r != ERROR_SUCCESS)
1965 return r;
1966
1967 r = msi_table_find_row((MSITABLEVIEW *)columns, rec, &row, NULL);
1968 if (r != ERROR_SUCCESS)
1969 goto done;
1970
1971 r = TABLE_delete_row(columns, row);
1972 if (r != ERROR_SUCCESS)
1973 goto done;
1974
1975 msi_update_table_columns(tv->db, table);
1976
1977 done:
1978 msiobj_release(&rec->hdr);
1979 columns->ops->delete(columns);
1980 return r;
1981 }
1982
1983 static UINT TABLE_release(struct tagMSIVIEW *view)
1984 {
1985 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
1986 INT ref = tv->table->ref_count;
1987 UINT i, r;
1988
1989 TRACE("%p %d\n", view, ref);
1990
1991 for (i = 0; i < tv->table->col_count; i++)
1992 {
1993 if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
1994 {
1995 ref = InterlockedDecrement(&tv->table->colinfo[i].ref_count);
1996 if (ref == 0)
1997 {
1998 r = TABLE_remove_column(view, tv->table->colinfo[i].tablename,
1999 tv->table->colinfo[i].number);
2000 if (r != ERROR_SUCCESS)
2001 break;
2002 }
2003 }
2004 }
2005
2006 ref = InterlockedDecrement(&tv->table->ref_count);
2007 if (ref == 0)
2008 {
2009 if (!tv->table->row_count)
2010 {
2011 list_remove(&tv->table->entry);
2012 free_table(tv->table);
2013 TABLE_delete(view);
2014 }
2015 }
2016
2017 return ref;
2018 }
2019
2020 static UINT TABLE_add_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number,
2021 LPCWSTR column, UINT type, BOOL hold)
2022 {
2023 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
2024 MSITABLE *msitable;
2025 MSIRECORD *rec;
2026 UINT r, i;
2027
2028 rec = MSI_CreateRecord(4);
2029 if (!rec)
2030 return ERROR_OUTOFMEMORY;
2031
2032 MSI_RecordSetStringW(rec, 1, table);
2033 MSI_RecordSetInteger(rec, 2, number);
2034 MSI_RecordSetStringW(rec, 3, column);
2035 MSI_RecordSetInteger(rec, 4, type);
2036
2037 r = TABLE_insert_row(&tv->view, rec, -1, FALSE);
2038 if (r != ERROR_SUCCESS)
2039 goto done;
2040
2041 msi_update_table_columns(tv->db, table);
2042
2043 if (!hold)
2044 goto done;
2045
2046 msitable = find_cached_table(tv->db, table);
2047 for (i = 0; i < msitable->col_count; i++)
2048 {
2049 if (!strcmpW( msitable->colinfo[i].colname, column ))
2050 {
2051 InterlockedIncrement(&msitable->colinfo[i].ref_count);
2052 break;
2053 }
2054 }
2055
2056 done:
2057 msiobj_release(&rec->hdr);
2058 return r;
2059 }
2060
2061 static UINT TABLE_drop(struct tagMSIVIEW *view)
2062 {
2063 MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
2064 MSIVIEW *tables = NULL;
2065 MSIRECORD *rec = NULL;
2066 UINT r, row;
2067 INT i;
2068
2069 TRACE("dropping table %s\n", debugstr_w(tv->name));
2070
2071 for (i = tv->table->col_count - 1; i >= 0; i--)
2072 {
2073 r = TABLE_remove_column(view, tv->table->colinfo[i].tablename,
2074 tv->table->colinfo[i].number);
2075 if (r != ERROR_SUCCESS)
2076 return r;
2077 }
2078
2079 rec = MSI_CreateRecord(1);
2080 if (!rec)
2081 return ERROR_OUTOFMEMORY;
2082
2083 MSI_RecordSetStringW(rec, 1, tv->name);
2084
2085 r = TABLE_CreateView(tv->db, szTables, &tables);
2086 if (r != ERROR_SUCCESS)
2087 return r;
2088
2089 r = msi_table_find_row((MSITABLEVIEW *)tables, rec, &row, NULL);
2090 if (r != ERROR_SUCCESS)
2091 goto done;
2092
2093 r = TABLE_delete_row(tables, row);
2094 if (r != ERROR_SUCCESS)
2095 goto done;
2096
2097 list_remove(&tv->table->entry);
2098 free_table(tv->table);
2099
2100 done:
2101 msiobj_release(&rec->hdr);
2102 tables->ops->delete(tables);
2103
2104 return r;
2105 }
2106
2107 static const MSIVIEWOPS table_ops =
2108 {
2109 TABLE_fetch_int,
2110 TABLE_fetch_stream,
2111 TABLE_get_row,
2112 TABLE_set_row,
2113 TABLE_insert_row,
2114 TABLE_delete_row,
2115 TABLE_execute,
2116 TABLE_close,
2117 TABLE_get_dimensions,
2118 TABLE_get_column_info,
2119 TABLE_modify,
2120 TABLE_delete,
2121 TABLE_find_matching_rows,
2122 TABLE_add_ref,
2123 TABLE_release,
2124 TABLE_add_column,
2125 TABLE_remove_column,
2126 NULL,
2127 TABLE_drop,
2128 };
2129
2130 UINT TABLE_CreateView( MSIDATABASE *db, LPCWSTR name, MSIVIEW **view )
2131 {
2132 MSITABLEVIEW *tv ;
2133 UINT r, sz;
2134
2135 TRACE("%p %s %p\n", db, debugstr_w(name), view );
2136
2137 if ( !strcmpW( name, szStreams ) )
2138 return STREAMS_CreateView( db, view );
2139 else if ( !strcmpW( name, szStorages ) )
2140 return STORAGES_CreateView( db, view );
2141
2142 sz = sizeof *tv + lstrlenW(name)*sizeof name[0] ;
2143 tv = msi_alloc_zero( sz );
2144 if( !tv )
2145 return ERROR_FUNCTION_FAILED;
2146
2147 r = get_table( db, name, &tv->table );
2148 if( r != ERROR_SUCCESS )
2149 {
2150 msi_free( tv );
2151 WARN("table not found\n");
2152 return r;
2153 }
2154
2155 TRACE("table %p found with %d columns\n", tv->table, tv->table->col_count);
2156
2157 /* fill the structure */
2158 tv->view.ops = &table_ops;
2159 tv->db = db;
2160 tv->columns = tv->table->colinfo;
2161 tv->num_cols = tv->table->col_count;
2162 tv->row_size = msi_table_get_row_size( db, tv->table->colinfo, tv->table->col_count, LONG_STR_BYTES );
2163
2164 TRACE("%s one row is %d bytes\n", debugstr_w(name), tv->row_size );
2165
2166 *view = (MSIVIEW*) tv;
2167 lstrcpyW( tv->name, name );
2168
2169 return ERROR_SUCCESS;
2170 }
2171
2172 UINT MSI_CommitTables( MSIDATABASE *db )
2173 {
2174 UINT r, bytes_per_strref;
2175 HRESULT hr;
2176 MSITABLE *table = NULL;
2177
2178 TRACE("%p\n",db);
2179
2180 r = msi_save_string_table( db->strings, db->storage, &bytes_per_strref );
2181 if( r != ERROR_SUCCESS )
2182 {
2183 WARN("failed to save string table r=%08x\n",r);
2184 return r;
2185 }
2186
2187 LIST_FOR_EACH_ENTRY( table, &db->tables, MSITABLE, entry )
2188 {
2189 r = save_table( db, table, bytes_per_strref );
2190 if( r != ERROR_SUCCESS )
2191 {
2192 WARN("failed to save table %s (r=%08x)\n",
2193 debugstr_w(table->name), r);
2194 return r;
2195 }
2196 }
2197
2198 hr = IStorage_Commit( db->storage, 0 );
2199 if (FAILED( hr ))
2200 {
2201 WARN("failed to commit changes 0x%08x\n", hr);
2202 r = ERROR_FUNCTION_FAILED;
2203 }
2204 return r;
2205 }
2206
2207 MSICONDITION MSI_DatabaseIsTablePersistent( MSIDATABASE *db, LPCWSTR table )
2208 {
2209 MSITABLE *t;
2210 UINT r;
2211
2212 TRACE("%p %s\n", db, debugstr_w(table));
2213
2214 if (!table)
2215 return MSICONDITION_ERROR;
2216
2217 r = get_table( db, table, &t );
2218 if (r != ERROR_SUCCESS)
2219 return MSICONDITION_NONE;
2220
2221 return t->persistent;
2222 }
2223
2224 static UINT read_raw_int(const BYTE *data, UINT col, UINT bytes)
2225 {
2226 UINT ret = 0, i;
2227
2228 for (i = 0; i < bytes; i++)
2229 ret += (data[col + i] << i * 8);
2230
2231 return ret;
2232 }
2233
2234 static UINT msi_record_encoded_stream_name( const MSITABLEVIEW *tv, MSIRECORD *rec, LPWSTR *pstname )
2235 {
2236 LPWSTR stname = NULL, sval, p;
2237 DWORD len;
2238 UINT i, r;
2239
2240 TRACE("%p %p\n", tv, rec);
2241
2242 len = lstrlenW( tv->name ) + 1;
2243 stname = msi_alloc( len*sizeof(WCHAR) );
2244 if ( !stname )
2245 {
2246 r = ERROR_OUTOFMEMORY;
2247 goto err;
2248 }
2249
2250 lstrcpyW( stname, tv->name );
2251
2252 for ( i = 0; i < tv->num_cols; i++ )
2253 {
2254 if ( tv->columns[i].type & MSITYPE_KEY )
2255 {
2256 sval = msi_dup_record_field( rec, i + 1 );
2257 if ( !sval )
2258 {
2259 r = ERROR_OUTOFMEMORY;
2260 goto err;
2261 }
2262
2263 len += lstrlenW( szDot ) + lstrlenW ( sval );
2264 p = msi_realloc ( stname, len*sizeof(WCHAR) );
2265 if ( !p )
2266 {
2267 r = ERROR_OUTOFMEMORY;
2268 goto err;
2269 }
2270 stname = p;
2271
2272 lstrcatW( stname, szDot );
2273 lstrcatW( stname, sval );
2274
2275 msi_free( sval );
2276 }
2277 else
2278 continue;
2279 }
2280
2281 *pstname = encode_streamname( FALSE, stname );
2282 msi_free( stname );
2283
2284 return ERROR_SUCCESS;
2285
2286 err:
2287 msi_free ( stname );
2288 *pstname = NULL;
2289 return r;
2290 }
2291
2292 static MSIRECORD *msi_get_transform_record( const MSITABLEVIEW *tv, const string_table *st,
2293 IStorage *stg,
2294 const BYTE *rawdata, UINT bytes_per_strref )
2295 {
2296 UINT i, val, ofs = 0;
2297 USHORT mask;
2298 MSICOLUMNINFO *columns = tv->columns;
2299 MSIRECORD *rec;
2300
2301 mask = rawdata[0] | (rawdata[1] << 8);
2302 rawdata += 2;
2303
2304 rec = MSI_CreateRecord( tv->num_cols );
2305 if( !rec )
2306 return rec;
2307
2308 TRACE("row ->\n");
2309 for( i=0; i<tv->num_cols; i++ )
2310 {
2311 if ( (mask&1) && (i>=(mask>>8)) )
2312 break;
2313 /* all keys must be present */
2314 if ( (~mask&1) && (~columns[i].type & MSITYPE_KEY) && ((1<<i) & ~mask) )
2315 continue;
2316
2317 if( MSITYPE_IS_BINARY(tv->columns[i].type) )
2318 {
2319 LPWSTR encname;
2320 IStream *stm = NULL;
2321 UINT r;
2322
2323 ofs += bytes_per_column( tv->db, &columns[i], bytes_per_strref );
2324
2325 r = msi_record_encoded_stream_name( tv, rec, &encname );
2326 if ( r != ERROR_SUCCESS )
2327 return NULL;
2328
2329 r = IStorage_OpenStream( stg, encname, NULL,
2330 STGM_READ | STGM_SHARE_EXCLUSIVE, 0, &stm );
2331 msi_free( encname );
2332 if ( r != ERROR_SUCCESS )
2333 return NULL;
2334
2335 MSI_RecordSetStream( rec, i+1, stm );
2336 TRACE(" field %d [%s]\n", i+1, debugstr_w(encname));
2337 }
2338 else if( columns[i].type & MSITYPE_STRING )
2339 {
2340 LPCWSTR sval;
2341
2342 val = read_raw_int(rawdata, ofs, bytes_per_strref);
2343 sval = msi_string_lookup_id( st, val );
2344 MSI_RecordSetStringW( rec, i+1, sval );
2345 TRACE(" field %d [%s]\n", i+1, debugstr_w(sval));
2346 ofs += bytes_per_strref;
2347 }
2348 else
2349 {
2350 UINT n = bytes_per_column( tv->db, &columns[i], bytes_per_strref );
2351 switch( n )
2352 {
2353 case 2:
2354 val = read_raw_int(rawdata, ofs, n);
2355 if (val)
2356 MSI_RecordSetInteger( rec, i+1, val-0x8000 );
2357 TRACE(" field %d [0x%04x]\n", i+1, val );
2358 break;
2359 case 4:
2360 val = read_raw_int(rawdata, ofs, n);
2361 if (val)
2362 MSI_RecordSetInteger( rec, i+1, val^0x80000000 );
2363 TRACE(" field %d [0x%08x]\n", i+1, val );
2364 break;
2365 default:
2366 ERR("oops - unknown column width %d\n", n);
2367 break;
2368 }
2369 ofs += n;
2370 }
2371 }
2372 return rec;
2373 }
2374
2375 static void dump_record( MSIRECORD *rec )
2376 {
2377 UINT i, n;
2378
2379 n = MSI_RecordGetFieldCount( rec );
2380 for( i=1; i<=n; i++ )
2381 {
2382 LPCWSTR sval;
2383
2384 if( MSI_RecordIsNull( rec, i ) )
2385 TRACE("row -> []\n");
2386 else if( (sval = MSI_RecordGetString( rec, i )) )
2387 TRACE("row -> [%s]\n", debugstr_w(sval));
2388 else
2389 TRACE("row -> [0x%08x]\n", MSI_RecordGetInteger( rec, i ) );
2390 }
2391 }
2392
2393 static void dump_table( const string_table *st, const USHORT *rawdata, UINT rawsize )
2394 {
2395 LPCWSTR sval;
2396 UINT i;
2397
2398 for( i=0; i<(rawsize/2); i++ )
2399 {
2400 sval = msi_string_lookup_id( st, rawdata[i] );
2401 MESSAGE(" %04x %s\n", rawdata[i], debugstr_w(sval) );
2402 }
2403 }
2404
2405 static UINT* msi_record_to_row( const MSITABLEVIEW *tv, MSIRECORD *rec )
2406 {
2407 LPCWSTR str;
2408 UINT i, r, *data;
2409
2410 data = msi_alloc( tv->num_cols *sizeof (UINT) );
2411 for( i=0; i<tv->num_cols; i++ )
2412 {
2413 data[i] = 0;
2414
2415 if ( ~tv->columns[i].type & MSITYPE_KEY )
2416 continue;
2417
2418 /* turn the transform column value into a row value */
2419 if ( ( tv->columns[i].type & MSITYPE_STRING ) &&
2420 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2421 {
2422 str = MSI_RecordGetString( rec, i+1 );
2423 if (str)
2424 {
2425 r = msi_string2idW( tv->db->strings, str, &data[i] );
2426
2427 /* if there's no matching string in the string table,
2428 these keys can't match any record, so fail now. */
2429 if (r != ERROR_SUCCESS)
2430 {
2431 msi_free( data );
2432 return NULL;
2433 }
2434 }
2435 else data[i] = 0;
2436 }
2437 else
2438 {
2439 data[i] = MSI_RecordGetInteger( rec, i+1 );
2440
2441 if (data[i] == MSI_NULL_INTEGER)
2442 data[i] = 0;
2443 else if ((tv->columns[i].type&0xff) == 2)
2444 data[i] += 0x8000;
2445 else
2446 data[i] += 0x80000000;
2447 }
2448 }
2449 return data;
2450 }
2451
2452 static UINT msi_row_matches( MSITABLEVIEW *tv, UINT row, const UINT *data, UINT *column )
2453 {
2454 UINT i, r, x, ret = ERROR_FUNCTION_FAILED;
2455
2456 for( i=0; i<tv->num_cols; i++ )
2457 {
2458 if ( ~tv->columns[i].type & MSITYPE_KEY )
2459 continue;
2460
2461 /* turn the transform column value into a row value */
2462 r = TABLE_fetch_int( &tv->view, row, i+1, &x );
2463 if ( r != ERROR_SUCCESS )
2464 {
2465 ERR("TABLE_fetch_int shouldn't fail here\n");
2466 break;
2467 }
2468
2469 /* if this key matches, move to the next column */
2470 if ( x != data[i] )
2471 {
2472 ret = ERROR_FUNCTION_FAILED;
2473 break;
2474 }
2475 if (column) *column = i;
2476 ret = ERROR_SUCCESS;
2477 }
2478 return ret;
2479 }
2480
2481 static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row, UINT *column )
2482 {
2483 UINT i, r = ERROR_FUNCTION_FAILED, *data;
2484
2485 data = msi_record_to_row( tv, rec );
2486 if( !data )
2487 return r;
2488 for( i = 0; i < tv->table->row_count; i++ )
2489 {
2490 r = msi_row_matches( tv, i, data, column );
2491 if( r == ERROR_SUCCESS )
2492 {
2493 *row = i;
2494 break;
2495 }
2496 }
2497 msi_free( data );
2498 return r;
2499 }
2500
2501 typedef struct
2502 {
2503 struct list entry;
2504 LPWSTR name;
2505 } TRANSFORMDATA;
2506
2507 static UINT msi_table_load_transform( MSIDATABASE *db, IStorage *stg,
2508 string_table *st, TRANSFORMDATA *transform,
2509 UINT bytes_per_strref )
2510 {
2511 BYTE *rawdata = NULL;
2512 MSITABLEVIEW *tv = NULL;
2513 UINT r, n, sz, i, mask, num_cols, colcol = 0, rawsize = 0;
2514 MSIRECORD *rec = NULL;
2515 WCHAR coltable[32];
2516 const WCHAR *name;
2517
2518 if (!transform)
2519 return ERROR_SUCCESS;
2520
2521 name = transform->name;
2522
2523 coltable[0] = 0;
2524 TRACE("%p %p %p %s\n", db, stg, st, debugstr_w(name) );
2525
2526 /* read the transform data */
2527 read_stream_data( stg, name, TRUE, &rawdata, &rawsize );
2528 if ( !rawdata )
2529 {
2530 TRACE("table %s empty\n", debugstr_w(name) );
2531 return ERROR_INVALID_TABLE;
2532 }
2533
2534 /* create a table view */
2535 r = TABLE_CreateView( db, name, (MSIVIEW**) &tv );
2536 if( r != ERROR_SUCCESS )
2537 goto err;
2538
2539 r = tv->view.ops->execute( &tv->view, NULL );
2540 if( r != ERROR_SUCCESS )
2541 goto err;
2542
2543 TRACE("name = %s columns = %u row_size = %u raw size = %u\n",
2544 debugstr_w(name), tv->num_cols, tv->row_size, rawsize );
2545
2546 /* interpret the data */
2547 for (n = 0; n < rawsize;)
2548 {
2549 mask = rawdata[n] | (rawdata[n + 1] << 8);
2550 if (mask & 1)
2551 {
2552 /*
2553 * if the low bit is set, columns are continuous and
2554 * the number of columns is specified in the high byte
2555 */
2556 sz = 2;
2557 num_cols = mask >> 8;
2558 for (i = 0; i < num_cols; i++)
2559 {
2560 if( (tv->columns[i].type & MSITYPE_STRING) &&
2561 ! MSITYPE_IS_BINARY(tv->columns[i].type) )
2562 sz += bytes_per_strref;
2563 else
2564 sz += bytes_per_column( tv->db, &tv->columns[i], bytes_per_strref );
2565 }
2566 }
2567 else
2568 {
2569 /*
2570 * If the low bit is not set, mask is a bitmask.
2571 * Excepting for key fields, which are always present,
2572 * each bit indicates that a field is present in the transform record.
2573 *
2574 * mask == 0 is a special case ... only the keys will be present
2575 * and it means that this row should be deleted.
2576 */
2577 sz = 2;
2578 num_cols = tv->num_cols;
2579 for (i = 0; i < num_cols; i++)
2580 {
2581 if ((tv->columns[i].type & MSITYPE_KEY) || ((1 << i) & mask))
2582 {
2583 if ((tv->columns[i].type & MSITYPE_STRING) &&
2584 !MSITYPE_IS_BINARY(tv->columns[i].type))
2585 sz += bytes_per_strref;
2586 else
2587 sz += bytes_per_column( tv->db, &tv->columns[i], bytes_per_strref );
2588 }
2589 }
2590 }
2591
2592 /* check we didn't run of the end of the table */
2593 if (n + sz > rawsize)
2594 {
2595 ERR("borked.\n");
2596 dump_table( st, (USHORT *)rawdata, rawsize );
2597 break;
2598 }
2599
2600 rec = msi_get_transform_record( tv, st, stg, &rawdata[n], bytes_per_strref );
2601 if (rec)
2602 {
2603 WCHAR table[32];
2604 DWORD sz = 32;
2605 UINT number = MSI_NULL_INTEGER;
2606 UINT row = 0;
2607
2608 if (!strcmpW( name, szColumns ))
2609 {
2610 MSI_RecordGetStringW( rec, 1, table, &sz );
2611 number = MSI_RecordGetInteger( rec, 2 );
2612
2613 /*
2614 * Native msi seems writes nul into the Number (2nd) column of
2615 * the _Columns table, only when the columns are from a new table
2616 */
2617 if ( number == MSI_NULL_INTEGER )
2618 {
2619 /* reset the column number on a new table */
2620 if (strcmpW( coltable, table ))
2621 {
2622 colcol = 0;
2623 lstrcpyW( coltable, table );
2624 }
2625
2626 /* fix nul column numbers */
2627 MSI_RecordSetInteger( rec, 2, ++colcol );
2628 }
2629 }
2630
2631 if (TRACE_ON(msidb)) dump_record( rec );
2632
2633 r = msi_table_find_row( tv, rec, &row, NULL );
2634 if (r == ERROR_SUCCESS)
2635 {
2636 if (!mask)
2637 {
2638 TRACE("deleting row [%d]:\n", row);
2639 r = TABLE_delete_row( &tv->view, row );
2640 if (r != ERROR_SUCCESS)
2641 WARN("failed to delete row %u\n", r);
2642 }
2643 else if (mask & 1)
2644 {
2645 TRACE("modifying full row [%d]:\n", row);
2646 r = TABLE_set_row( &tv->view, row, rec, (1 << tv->num_cols) - 1 );
2647 if (r != ERROR_SUCCESS)
2648 WARN("failed to modify row %u\n", r);
2649 }
2650 else
2651 {
2652 TRACE("modifying masked row [%d]:\n", row);
2653 r = TABLE_set_row( &tv->view, row, rec, mask );
2654 if (r != ERROR_SUCCESS)
2655 WARN("failed to modify row %u\n", r);
2656 }
2657 }
2658 else
2659 {
2660 TRACE("inserting row\n");
2661 r = TABLE_insert_row( &tv->view, rec, -1, FALSE );
2662 if (r != ERROR_SUCCESS)
2663 WARN("failed to insert row %u\n", r);
2664 }
2665
2666 if (number != MSI_NULL_INTEGER && !strcmpW( name, szColumns ))
2667 msi_update_table_columns( db, table );
2668
2669 msiobj_release( &rec->hdr );
2670 }
2671
2672 n += sz;
2673 }
2674
2675 err:
2676 /* no need to free the table, it's associated with the database */
2677 msi_free( rawdata );
2678 if( tv )
2679 tv->view.ops->delete( &tv->view );
2680
2681 return ERROR_SUCCESS;
2682 }
2683
2684 /*
2685 * msi_table_apply_transform
2686 *
2687 * Enumerate the table transforms in a transform storage and apply each one.
2688 */
2689 UINT msi_table_apply_transform( MSIDATABASE *db, IStorage *stg )
2690 {
2691 struct list transforms;
2692 IEnumSTATSTG *stgenum = NULL;
2693 TRANSFORMDATA *transform;
2694 TRANSFORMDATA *tables = NULL, *columns = NULL;
2695 HRESULT r;
2696 STATSTG stat;
2697 string_table *strings;
2698 UINT ret = ERROR_FUNCTION_FAILED;
2699 UINT bytes_per_strref;
2700
2701 TRACE("%p %p\n", db, stg );
2702
2703 strings = msi_load_string_table( stg, &bytes_per_strref );
2704 if( !strings )
2705 goto end;
2706
2707 r = IStorage_EnumElements( stg, 0, NULL, 0, &stgenum );
2708 if( FAILED( r ) )
2709 goto end;
2710
2711 list_init(&transforms);
2712
2713 while ( TRUE )
2714 {
2715 MSITABLEVIEW *tv = NULL;
2716 WCHAR name[0x40];
2717 ULONG count = 0;
2718
2719 r = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
2720 if ( FAILED( r ) || !count )
2721 break;
2722
2723 decode_streamname( stat.pwcsName, name );
2724 CoTaskMemFree( stat.pwcsName );
2725 if ( name[0] != 0x4840 )
2726 continue;
2727
2728 if ( !strcmpW( name+1, szStringPool ) ||
2729 !strcmpW( name+1, szStringData ) )
2730 continue;
2731
2732 transform = msi_alloc_zero( sizeof(TRANSFORMDATA) );
2733 if ( !transform )
2734 break;
2735
2736 list_add_tail( &transforms, &transform->entry );
2737
2738 transform->name = strdupW( name + 1 );
2739
2740 if ( !strcmpW( transform->name, szTables ) )
2741 tables = transform;
2742 else if (!strcmpW( transform->name, szColumns ) )
2743 columns = transform;
2744
2745 TRACE("transform contains stream %s\n", debugstr_w(name));
2746
2747 /* load the table */
2748 r = TABLE_CreateView( db, transform->name, (MSIVIEW**) &tv );
2749 if( r != ERROR_SUCCESS )
2750 continue;
2751
2752 r = tv->view.ops->execute( &tv->view, NULL );
2753 if( r != ERROR_SUCCESS )
2754 {
2755 tv->view.ops->delete( &tv->view );
2756 continue;
2757 }
2758
2759 tv->view.ops->delete( &tv->view );
2760 }
2761
2762 /*
2763 * Apply _Tables and _Columns transforms first so that
2764 * the table metadata is correct, and empty tables exist.
2765 */
2766 ret = msi_table_load_transform( db, stg, strings, tables, bytes_per_strref );
2767 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2768 goto end;
2769
2770 ret = msi_table_load_transform( db, stg, strings, columns, bytes_per_strref );
2771 if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
2772 goto end;
2773
2774 ret = ERROR_SUCCESS;
2775
2776 while ( !list_empty( &transforms ) )
2777 {
2778 transform = LIST_ENTRY( list_head( &transforms ), TRANSFORMDATA, entry );
2779
2780 if ( strcmpW( transform->name, szColumns ) &&
2781 strcmpW( transform->name, szTables ) &&
2782 ret == ERROR_SUCCESS )
2783 {
2784 ret = msi_table_load_transform( db, stg, strings, transform, bytes_per_strref );
2785 }
2786
2787 list_remove( &transform->entry );
2788 msi_free( transform->name );
2789 msi_free( transform );
2790 }
2791
2792 if ( ret == ERROR_SUCCESS )
2793 append_storage_to_db( db, stg );
2794
2795 end:
2796 if ( stgenum )
2797 IEnumSTATSTG_Release( stgenum );
2798 if ( strings )
2799 msi_destroy_stringtable( strings );
2800
2801 return ret;
2802 }
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