dlls/msi/database.c

   1 /*
   2  * Implementation of the Microsoft Installer (msi.dll)
   3  *
   4  * Copyright 2002,2003,2004,2005 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 <stdio.h>
  23
  24 #define COBJMACROS
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "winreg.h"
  29 #include "winnls.h"
  30 #include "wine/debug.h"
  31 #include "wine/unicode.h"
  32 #include "msi.h"
  33 #include "msiquery.h"
  34 #include "msipriv.h"
  35 #include "objidl.h"
  36 #include "objbase.h"
  37 #include "msiserver.h"
  38 #include "query.h"
  39
  40 #include "initguid.h"
  41
  42 WINE_DEFAULT_DEBUG_CHANNEL(msi);
  43
  44 /*
  45  *  .MSI  file format
  46  *
  47  *  An .msi file is a structured storage file.
  48  *  It contains a number of streams.
  49  *  A stream for each table in the database.
  50  *  Two streams for the string table in the database.
  51  *  Any binary data in a table is a reference to a stream.
  52  */
  53
  54 #define IS_INTMSIDBOPEN(x)      (((ULONG_PTR)(x) >> 16) == 0)
  55
  56 static void free_transforms( MSIDATABASE *db )
  57 {
  58     while( !list_empty( &db->transforms ) )
  59     {
  60         MSITRANSFORM *t = LIST_ENTRY( list_head( &db->transforms ), MSITRANSFORM, entry );
  61         list_remove( &t->entry );
  62         IStorage_Release( t->stg );
  63         msi_free( t );
  64     }
  65 }
  66
  67 static void free_streams( MSIDATABASE *db )
  68 {
  69     UINT i;
  70     for (i = 0; i < db->num_streams; i++)
  71     {
  72         if (db->streams[i].stream) IStream_Release( db->streams[i].stream );
  73     }
  74     msi_free( db->streams );
  75 }
  76
  77 void append_storage_to_db( MSIDATABASE *db, IStorage *stg )
  78 {
  79     MSITRANSFORM *t;
  80
  81     t = msi_alloc( sizeof *t );
  82     t->stg = stg;
  83     IStorage_AddRef( stg );
  84     list_add_head( &db->transforms, &t->entry );
  85 }
  86
  87 static VOID MSI_CloseDatabase( MSIOBJECTHDR *arg )
  88 {
  89     MSIDATABASE *db = (MSIDATABASE *) arg;
  90
  91     msi_free(db->path);
  92     free_streams( db );
  93     free_cached_tables( db );
  94     free_transforms( db );
  95     if (db->strings) msi_destroy_stringtable( db->strings );
  96     IStorage_Release( db->storage );
  97     if (db->deletefile)
  98     {
  99         DeleteFileW( db->deletefile );
 100         msi_free( db->deletefile );
 101     }
 102     msi_free( db->tempfolder );
 103 }
 104
 105 static HRESULT db_initialize( IStorage *stg, const GUID *clsid )
 106 {
 107     static const WCHAR szTables[]  = { '_','T','a','b','l','e','s',0 };
 108     HRESULT hr;
 109
 110     hr = IStorage_SetClass( stg, clsid );
 111     if (FAILED( hr ))
 112     {
 113         WARN("failed to set class id 0x%08x\n", hr);
 114         return hr;
 115     }
 116
 117     /* create the _Tables stream */
 118     hr = write_stream_data( stg, szTables, NULL, 0, TRUE );
 119     if (FAILED( hr ))
 120     {
 121         WARN("failed to create _Tables stream 0x%08x\n", hr);
 122         return hr;
 123     }
 124
 125     hr = msi_init_string_table( stg );
 126     if (FAILED( hr ))
 127     {
 128         WARN("failed to initialize string table 0x%08x\n", hr);
 129         return hr;
 130     }
 131
 132     hr = IStorage_Commit( stg, 0 );
 133     if (FAILED( hr ))
 134     {
 135         WARN("failed to commit changes 0x%08x\n", hr);
 136         return hr;
 137     }
 138
 139     return S_OK;
 140 }
 141
 142 UINT MSI_OpenDatabaseW(LPCWSTR szDBPath, LPCWSTR szPersist, MSIDATABASE **pdb)
 143 {
 144     IStorage *stg = NULL;
 145     HRESULT r;
 146     MSIDATABASE *db = NULL;
 147     UINT ret = ERROR_FUNCTION_FAILED;
 148     LPCWSTR szMode, save_path;
 149     STATSTG stat;
 150     BOOL created = FALSE, patch = FALSE;
 151     WCHAR path[MAX_PATH];
 152
 153     TRACE("%s %s\n",debugstr_w(szDBPath),debugstr_w(szPersist) );
 154
 155     if( !pdb )
 156         return ERROR_INVALID_PARAMETER;
 157
 158     if (szPersist - MSIDBOPEN_PATCHFILE <= MSIDBOPEN_CREATEDIRECT)
 159     {
 160         TRACE("Database is a patch\n");
 161         szPersist -= MSIDBOPEN_PATCHFILE;
 162         patch = TRUE;
 163     }
 164
 165     save_path = szDBPath;
 166     szMode = szPersist;
 167     if( !IS_INTMSIDBOPEN(szPersist) )
 168     {
 169         if (!CopyFileW( szDBPath, szPersist, FALSE ))
 170             return ERROR_OPEN_FAILED;
 171
 172         szDBPath = szPersist;
 173         szPersist = MSIDBOPEN_TRANSACT;
 174         created = TRUE;
 175     }
 176
 177     if( szPersist == MSIDBOPEN_READONLY )
 178     {
 179         r = StgOpenStorage( szDBPath, NULL,
 180               STGM_DIRECT|STGM_READ|STGM_SHARE_DENY_WRITE, NULL, 0, &stg);
 181     }
 182     else if( szPersist == MSIDBOPEN_CREATE )
 183     {
 184         r = StgCreateDocfile( szDBPath,
 185               STGM_CREATE|STGM_TRANSACTED|STGM_READWRITE|STGM_SHARE_EXCLUSIVE, 0, &stg );
 186
 187         if( SUCCEEDED(r) )
 188             r = db_initialize( stg, patch ? &CLSID_MsiPatch : &CLSID_MsiDatabase );
 189         created = TRUE;
 190     }
 191     else if( szPersist == MSIDBOPEN_CREATEDIRECT )
 192     {
 193         r = StgCreateDocfile( szDBPath,
 194               STGM_CREATE|STGM_DIRECT|STGM_READWRITE|STGM_SHARE_EXCLUSIVE, 0, &stg );
 195
 196         if( SUCCEEDED(r) )
 197             r = db_initialize( stg, patch ? &CLSID_MsiPatch : &CLSID_MsiDatabase );
 198         created = TRUE;
 199     }
 200     else if( szPersist == MSIDBOPEN_TRANSACT )
 201     {
 202         r = StgOpenStorage( szDBPath, NULL,
 203               STGM_TRANSACTED|STGM_READWRITE|STGM_SHARE_DENY_WRITE, NULL, 0, &stg);
 204     }
 205     else if( szPersist == MSIDBOPEN_DIRECT )
 206     {
 207         r = StgOpenStorage( szDBPath, NULL,
 208               STGM_DIRECT|STGM_READWRITE|STGM_SHARE_EXCLUSIVE, NULL, 0, &stg);
 209     }
 210     else
 211     {
 212         ERR("unknown flag %p\n",szPersist);
 213         return ERROR_INVALID_PARAMETER;
 214     }
 215
 216     if( FAILED( r ) || !stg )
 217     {
 218         WARN("open failed r = %08x for %s\n", r, debugstr_w(szDBPath));
 219         return ERROR_FUNCTION_FAILED;
 220     }
 221
 222     r = IStorage_Stat( stg, &stat, STATFLAG_NONAME );
 223     if( FAILED( r ) )
 224     {
 225         FIXME("Failed to stat storage\n");
 226         goto end;
 227     }
 228
 229     if ( !IsEqualGUID( &stat.clsid, &CLSID_MsiDatabase ) &&
 230          !IsEqualGUID( &stat.clsid, &CLSID_MsiPatch ) &&
 231          !IsEqualGUID( &stat.clsid, &CLSID_MsiTransform ) )
 232     {
 233         ERR("storage GUID is not a MSI database GUID %s\n",
 234              debugstr_guid(&stat.clsid) );
 235         goto end;
 236     }
 237
 238     if ( patch && !IsEqualGUID( &stat.clsid, &CLSID_MsiPatch ) )
 239     {
 240         ERR("storage GUID is not the MSI patch GUID %s\n",
 241              debugstr_guid(&stat.clsid) );
 242         ret = ERROR_OPEN_FAILED;
 243         goto end;
 244     }
 245
 246     db = alloc_msiobject( MSIHANDLETYPE_DATABASE, sizeof (MSIDATABASE),
 247                               MSI_CloseDatabase );
 248     if( !db )
 249     {
 250         FIXME("Failed to allocate a handle\n");
 251         goto end;
 252     }
 253
 254     if (!strchrW( save_path, '\\' ))
 255     {
 256         GetCurrentDirectoryW( MAX_PATH, path );
 257         lstrcatW( path, szBackSlash );
 258         lstrcatW( path, save_path );
 259     }
 260     else
 261         lstrcpyW( path, save_path );
 262
 263     db->path = strdupW( path );
 264     db->media_transform_offset = MSI_INITIAL_MEDIA_TRANSFORM_OFFSET;
 265     db->media_transform_disk_id = MSI_INITIAL_MEDIA_TRANSFORM_DISKID;
 266
 267     if( TRACE_ON( msi ) )
 268         enum_stream_names( stg );
 269
 270     db->storage = stg;
 271     db->mode = szMode;
 272     if (created)
 273         db->deletefile = strdupW( szDBPath );
 274     list_init( &db->tables );
 275     list_init( &db->transforms );
 276
 277     db->strings = msi_load_string_table( stg, &db->bytes_per_strref );
 278     if( !db->strings )
 279         goto end;
 280
 281     ret = ERROR_SUCCESS;
 282
 283     msiobj_addref( &db->hdr );
 284     IStorage_AddRef( stg );
 285     *pdb = db;
 286
 287 end:
 288     if( db )
 289         msiobj_release( &db->hdr );
 290     if( stg )
 291         IStorage_Release( stg );
 292
 293     return ret;
 294 }
 295
 296 UINT WINAPI MsiOpenDatabaseW(LPCWSTR szDBPath, LPCWSTR szPersist, MSIHANDLE *phDB)
 297 {
 298     MSIDATABASE *db;
 299     UINT ret;
 300
 301     TRACE("%s %s %p\n",debugstr_w(szDBPath),debugstr_w(szPersist), phDB);
 302
 303     ret = MSI_OpenDatabaseW( szDBPath, szPersist, &db );
 304     if( ret == ERROR_SUCCESS )
 305     {
 306         *phDB = alloc_msihandle( &db->hdr );
 307         if (! *phDB)
 308             ret = ERROR_NOT_ENOUGH_MEMORY;
 309         msiobj_release( &db->hdr );
 310     }
 311
 312     return ret;
 313 }
 314
 315 UINT WINAPI MsiOpenDatabaseA(LPCSTR szDBPath, LPCSTR szPersist, MSIHANDLE *phDB)
 316 {
 317     HRESULT r = ERROR_FUNCTION_FAILED;
 318     LPWSTR szwDBPath = NULL, szwPersist = NULL;
 319
 320     TRACE("%s %s %p\n", debugstr_a(szDBPath), debugstr_a(szPersist), phDB);
 321
 322     if( szDBPath )
 323     {
 324         szwDBPath = strdupAtoW( szDBPath );
 325         if( !szwDBPath )
 326             goto end;
 327     }
 328
 329     if( !IS_INTMSIDBOPEN(szPersist) )
 330     {
 331         szwPersist = strdupAtoW( szPersist );
 332         if( !szwPersist )
 333             goto end;
 334     }
 335     else
 336         szwPersist = (LPWSTR)(DWORD_PTR)szPersist;
 337
 338     r = MsiOpenDatabaseW( szwDBPath, szwPersist, phDB );
 339
 340 end:
 341     if( !IS_INTMSIDBOPEN(szPersist) )
 342         msi_free( szwPersist );
 343     msi_free( szwDBPath );
 344
 345     return r;
 346 }
 347
 348 static LPWSTR msi_read_text_archive(LPCWSTR path, DWORD *len)
 349 {
 350     HANDLE file;
 351     LPSTR data = NULL;
 352     LPWSTR wdata = NULL;
 353     DWORD read, size = 0;
 354
 355     file = CreateFileW( path, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL );
 356     if (file == INVALID_HANDLE_VALUE)
 357         return NULL;
 358
 359     size = GetFileSize( file, NULL );
 360     if (!(data = msi_alloc( size ))) goto done;
 361
 362     if (!ReadFile( file, data, size, &read, NULL ) || read != size) goto done;
 363
 364     while (!data[size - 1]) size--;
 365     *len = MultiByteToWideChar( CP_ACP, 0, data, size, NULL, 0 );
 366     if ((wdata = msi_alloc( (*len + 1) * sizeof(WCHAR) )))
 367     {
 368         MultiByteToWideChar( CP_ACP, 0, data, size, wdata, *len );
 369         wdata[*len] = 0;
 370     }
 371
 372 done:
 373     CloseHandle( file );
 374     msi_free( data );
 375     return wdata;
 376 }
 377
 378 static void msi_parse_line(LPWSTR *line, LPWSTR **entries, DWORD *num_entries, DWORD *len)
 379 {
 380     LPWSTR ptr = *line, save;
 381     DWORD i, count = 1, chars_left = *len;
 382
 383     *entries = NULL;
 384
 385     /* stay on this line */
 386     while (chars_left && *ptr != '\n')
 387     {
 388         /* entries are separated by tabs */
 389         if (*ptr == '\t')
 390             count++;
 391
 392         ptr++;
 393         chars_left--;
 394     }
 395
 396     *entries = msi_alloc(count * sizeof(LPWSTR));
 397     if (!*entries)
 398         return;
 399
 400     /* store pointers into the data */
 401     chars_left = *len;
 402     for (i = 0, ptr = *line; i < count; i++)
 403     {
 404         while (chars_left && *ptr == '\r')
 405         {
 406             ptr++;
 407             chars_left--;
 408         }
 409         save = ptr;
 410
 411         while (chars_left && *ptr != '\t' && *ptr != '\n' && *ptr != '\r')
 412         {
 413             if (!*ptr) *ptr = '\n'; /* convert embedded nulls to \n */
 414             if (ptr > *line && *ptr == '\x19' && *(ptr - 1) == '\x11')
 415             {
 416                 *ptr = '\n';
 417                 *(ptr - 1) = '\r';
 418             }
 419             ptr++;
 420             chars_left--;
 421         }
 422
 423         /* NULL-separate the data */
 424         if (*ptr == '\n' || *ptr == '\r')
 425         {
 426             while (chars_left && (*ptr == '\n' || *ptr == '\r'))
 427             {
 428                 *(ptr++) = 0;
 429                 chars_left--;
 430             }
 431         }
 432         else if (*ptr)
 433         {
 434             *(ptr++) = 0;
 435             chars_left--;
 436         }
 437         (*entries)[i] = save;
 438     }
 439
 440     /* move to the next line if there's more, else EOF */
 441     *line = ptr;
 442     *len = chars_left;
 443     if (num_entries)
 444         *num_entries = count;
 445 }
 446
 447 static LPWSTR msi_build_createsql_prelude(LPWSTR table)
 448 {
 449     LPWSTR prelude;
 450     DWORD size;
 451
 452     static const WCHAR create_fmt[] = {'C','R','E','A','T','E',' ','T','A','B','L','E',' ','`','%','s','`',' ','(',' ',0};
 453
 454     size = sizeof(create_fmt)/sizeof(create_fmt[0]) + lstrlenW(table) - 2;
 455     prelude = msi_alloc(size * sizeof(WCHAR));
 456     if (!prelude)
 457         return NULL;
 458
 459     sprintfW(prelude, create_fmt, table);
 460     return prelude;
 461 }
 462
 463 static LPWSTR msi_build_createsql_columns(LPWSTR *columns_data, LPWSTR *types, DWORD num_columns)
 464 {
 465     LPWSTR columns, p;
 466     LPCWSTR type;
 467     DWORD sql_size = 1, i, len;
 468     WCHAR expanded[128], *ptr;
 469     WCHAR size[10], comma[2], extra[30];
 470
 471     static const WCHAR column_fmt[] = {'`','%','s','`',' ','%','s','%','s','%','s','%','s',' ',0};
 472     static const WCHAR size_fmt[] = {'(','%','s',')',0};
 473     static const WCHAR type_char[] = {'C','H','A','R',0};
 474     static const WCHAR type_int[] = {'I','N','T',0};
 475     static const WCHAR type_long[] = {'L','O','N','G',0};
 476     static const WCHAR type_object[] = {'O','B','J','E','C','T',0};
 477     static const WCHAR type_notnull[] = {' ','N','O','T',' ','N','U','L','L',0};
 478     static const WCHAR localizable[] = {' ','L','O','C','A','L','I','Z','A','B','L','E',0};
 479
 480     columns = msi_alloc_zero(sql_size * sizeof(WCHAR));
 481     if (!columns)
 482         return NULL;
 483
 484     for (i = 0; i < num_columns; i++)
 485     {
 486         type = NULL;
 487         comma[1] = size[0] = extra[0] = '\0';
 488
 489         if (i == num_columns - 1)
 490             comma[0] = '\0';
 491         else
 492             comma[0] = ',';
 493
 494         ptr = &types[i][1];
 495         len = atolW(ptr);
 496         extra[0] = '\0';
 497
 498         switch (types[i][0])
 499         {
 500             case 'l':
 501                 lstrcpyW(extra, type_notnull);
 502                 /* fall through */
 503             case 'L':
 504                 lstrcatW(extra, localizable);
 505                 type = type_char;
 506                 sprintfW(size, size_fmt, ptr);
 507                 break;
 508             case 's':
 509                 lstrcpyW(extra, type_notnull);
 510                 /* fall through */
 511             case 'S':
 512                 type = type_char;
 513                 sprintfW(size, size_fmt, ptr);
 514                 break;
 515             case 'i':
 516                 lstrcpyW(extra, type_notnull);
 517                 /* fall through */
 518             case 'I':
 519                 if (len <= 2)
 520                     type = type_int;
 521                 else if (len == 4)
 522                     type = type_long;
 523                 else
 524                 {
 525                     WARN("invalid int width %u\n", len);
 526                     msi_free(columns);
 527                     return NULL;
 528                 }
 529                 break;
 530             case 'v':
 531                 lstrcpyW(extra, type_notnull);
 532                 /* fall through */
 533             case 'V':
 534                 type = type_object;
 535                 break;
 536             default:
 537                 ERR("Unknown type: %c\n", types[i][0]);
 538                 msi_free(columns);
 539                 return NULL;
 540         }
 541
 542         sprintfW(expanded, column_fmt, columns_data[i], type, size, extra, comma);
 543         sql_size += lstrlenW(expanded);
 544
 545         p = msi_realloc(columns, sql_size * sizeof(WCHAR));
 546         if (!p)
 547         {
 548             msi_free(columns);
 549             return NULL;
 550         }
 551         columns = p;
 552
 553         lstrcatW(columns, expanded);
 554     }
 555
 556     return columns;
 557 }
 558
 559 static LPWSTR msi_build_createsql_postlude(LPWSTR *primary_keys, DWORD num_keys)
 560 {
 561     LPWSTR postlude, keys, ptr;
 562     DWORD size, i;
 563
 564     static const WCHAR key_fmt[] = {'`','%','s','`',',',' ',0};
 565     static const WCHAR postlude_fmt[] = {'P','R','I','M','A','R','Y',' ','K','E','Y',' ','%','s',')',0};
 566
 567     for (i = 0, size = 1; i < num_keys; i++)
 568         size += lstrlenW(key_fmt) + lstrlenW(primary_keys[i]) - 2;
 569
 570     keys = msi_alloc(size * sizeof(WCHAR));
 571     if (!keys)
 572         return NULL;
 573
 574     for (i = 0, ptr = keys; i < num_keys; i++)
 575     {
 576         ptr += sprintfW(ptr, key_fmt, primary_keys[i]);
 577     }
 578
 579     /* remove final ', ' */
 580     *(ptr - 2) = '\0';
 581
 582     size = lstrlenW(postlude_fmt) + size - 1;
 583     postlude = msi_alloc(size * sizeof(WCHAR));
 584     if (!postlude)
 585         goto done;
 586
 587     sprintfW(postlude, postlude_fmt, keys);
 588
 589 done:
 590     msi_free(keys);
 591     return postlude;
 592 }
 593
 594 static UINT msi_add_table_to_db(MSIDATABASE *db, LPWSTR *columns, LPWSTR *types, LPWSTR *labels, DWORD num_labels, DWORD num_columns)
 595 {
 596     UINT r = ERROR_OUTOFMEMORY;
 597     DWORD size;
 598     MSIQUERY *view;
 599     LPWSTR create_sql = NULL;
 600     LPWSTR prelude, columns_sql, postlude;
 601
 602     prelude = msi_build_createsql_prelude(labels[0]);
 603     columns_sql = msi_build_createsql_columns(columns, types, num_columns);
 604     postlude = msi_build_createsql_postlude(labels + 1, num_labels - 1); /* skip over table name */
 605
 606     if (!prelude || !columns_sql || !postlude)
 607         goto done;
 608
 609     size = lstrlenW(prelude) + lstrlenW(columns_sql) + lstrlenW(postlude) + 1;
 610     create_sql = msi_alloc(size * sizeof(WCHAR));
 611     if (!create_sql)
 612         goto done;
 613
 614     lstrcpyW(create_sql, prelude);
 615     lstrcatW(create_sql, columns_sql);
 616     lstrcatW(create_sql, postlude);
 617
 618     r = MSI_DatabaseOpenViewW( db, create_sql, &view );
 619     if (r != ERROR_SUCCESS)
 620         goto done;
 621
 622     r = MSI_ViewExecute(view, NULL);
 623     MSI_ViewClose(view);
 624     msiobj_release(&view->hdr);
 625
 626 done:
 627     msi_free(prelude);
 628     msi_free(columns_sql);
 629     msi_free(postlude);
 630     msi_free(create_sql);
 631     return r;
 632 }
 633
 634 static LPWSTR msi_import_stream_filename(LPCWSTR path, LPCWSTR name)
 635 {
 636     DWORD len;
 637     LPWSTR fullname, ptr;
 638
 639     len = lstrlenW(path) + lstrlenW(name) + 1;
 640     fullname = msi_alloc(len*sizeof(WCHAR));
 641     if (!fullname)
 642        return NULL;
 643
 644     lstrcpyW( fullname, path );
 645
 646     /* chop off extension from path */
 647     ptr = strrchrW(fullname, '.');
 648     if (!ptr)
 649     {
 650         msi_free (fullname);
 651         return NULL;
 652     }
 653     *ptr++ = '\\';
 654     lstrcpyW( ptr, name );
 655     return fullname;
 656 }
 657
 658 static UINT construct_record(DWORD num_columns, LPWSTR *types,
 659                              LPWSTR *data, LPWSTR path, MSIRECORD **rec)
 660 {
 661     UINT i;
 662
 663     *rec = MSI_CreateRecord(num_columns);
 664     if (!*rec)
 665         return ERROR_OUTOFMEMORY;
 666
 667     for (i = 0; i < num_columns; i++)
 668     {
 669         switch (types[i][0])
 670         {
 671             case 'L': case 'l': case 'S': case 's':
 672                 MSI_RecordSetStringW(*rec, i + 1, data[i]);
 673                 break;
 674             case 'I': case 'i':
 675                 if (*data[i])
 676                     MSI_RecordSetInteger(*rec, i + 1, atoiW(data[i]));
 677                 break;
 678             case 'V': case 'v':
 679                 if (*data[i])
 680                 {
 681                     UINT r;
 682                     LPWSTR file = msi_import_stream_filename(path, data[i]);
 683                     if (!file)
 684                         return ERROR_FUNCTION_FAILED;
 685
 686                     r = MSI_RecordSetStreamFromFileW(*rec, i + 1, file);
 687                     msi_free (file);
 688                     if (r != ERROR_SUCCESS)
 689                         return ERROR_FUNCTION_FAILED;
 690                 }
 691                 break;
 692             default:
 693                 ERR("Unhandled column type: %c\n", types[i][0]);
 694                 msiobj_release(&(*rec)->hdr);
 695                 return ERROR_FUNCTION_FAILED;
 696         }
 697     }
 698
 699     return ERROR_SUCCESS;
 700 }
 701
 702 static UINT msi_add_records_to_table(MSIDATABASE *db, LPWSTR *columns, LPWSTR *types,
 703                                      LPWSTR *labels, LPWSTR **records,
 704                                      int num_columns, int num_records,
 705                                      LPWSTR path)
 706 {
 707     UINT r;
 708     int i;
 709     MSIQUERY *view;
 710     MSIRECORD *rec;
 711
 712     static const WCHAR select[] = {
 713         'S','E','L','E','C','T',' ','*',' ',
 714         'F','R','O','M',' ','`','%','s','`',0
 715     };
 716
 717     r = MSI_OpenQuery(db, &view, select, labels[0]);
 718     if (r != ERROR_SUCCESS)
 719         return r;
 720
 721     while (MSI_ViewFetch(view, &rec) != ERROR_NO_MORE_ITEMS)
 722     {
 723         r = MSI_ViewModify(view, MSIMODIFY_DELETE, rec);
 724         msiobj_release(&rec->hdr);
 725         if (r != ERROR_SUCCESS)
 726             goto done;
 727     }
 728
 729     for (i = 0; i < num_records; i++)
 730     {
 731         r = construct_record(num_columns, types, records[i], path, &rec);
 732         if (r != ERROR_SUCCESS)
 733             goto done;
 734
 735         r = MSI_ViewModify(view, MSIMODIFY_INSERT, rec);
 736         if (r != ERROR_SUCCESS)
 737         {
 738             msiobj_release(&rec->hdr);
 739             goto done;
 740         }
 741
 742         msiobj_release(&rec->hdr);
 743     }
 744
 745 done:
 746     msiobj_release(&view->hdr);
 747     return r;
 748 }
 749
 750 static UINT MSI_DatabaseImport(MSIDATABASE *db, LPCWSTR folder, LPCWSTR file)
 751 {
 752     UINT r;
 753     DWORD len, i;
 754     DWORD num_labels, num_types;
 755     DWORD num_columns, num_records = 0;
 756     LPWSTR *columns, *types, *labels;
 757     LPWSTR path, ptr, data;
 758     LPWSTR **records = NULL;
 759     LPWSTR **temp_records;
 760
 761     static const WCHAR suminfo[] =
 762         {'_','S','u','m','m','a','r','y','I','n','f','o','r','m','a','t','i','o','n',0};
 763     static const WCHAR forcecodepage[] =
 764         {'_','F','o','r','c','e','C','o','d','e','p','a','g','e',0};
 765
 766     TRACE("%p %s %s\n", db, debugstr_w(folder), debugstr_w(file) );
 767
 768     if( folder == NULL || file == NULL )
 769         return ERROR_INVALID_PARAMETER;
 770
 771     len = lstrlenW(folder) + lstrlenW(szBackSlash) + lstrlenW(file) + 1;
 772     path = msi_alloc( len * sizeof(WCHAR) );
 773     if (!path)
 774         return ERROR_OUTOFMEMORY;
 775
 776     lstrcpyW( path, folder );
 777     lstrcatW( path, szBackSlash );
 778     lstrcatW( path, file );
 779
 780     data = msi_read_text_archive( path, &len );
 781     if (!data)
 782     {
 783         msi_free(path);
 784         return ERROR_FUNCTION_FAILED;
 785     }
 786
 787     ptr = data;
 788     msi_parse_line( &ptr, &columns, &num_columns, &len );
 789     msi_parse_line( &ptr, &types, &num_types, &len );
 790     msi_parse_line( &ptr, &labels, &num_labels, &len );
 791
 792     if (num_columns == 1 && !columns[0][0] && num_labels == 1 && !labels[0][0] &&
 793         num_types == 2 && !strcmpW( types[1], forcecodepage ))
 794     {
 795         r = msi_set_string_table_codepage( db->strings, atoiW( types[0] ) );
 796         goto done;
 797     }
 798
 799     if (num_columns != num_types)
 800     {
 801         r = ERROR_FUNCTION_FAILED;
 802         goto done;
 803     }
 804
 805     records = msi_alloc(sizeof(LPWSTR *));
 806     if (!records)
 807     {
 808         r = ERROR_OUTOFMEMORY;
 809         goto done;
 810     }
 811
 812     /* read in the table records */
 813     while (len)
 814     {
 815         msi_parse_line( &ptr, &records[num_records], NULL, &len );
 816
 817         num_records++;
 818         temp_records = msi_realloc(records, (num_records + 1) * sizeof(LPWSTR *));
 819         if (!temp_records)
 820         {
 821             r = ERROR_OUTOFMEMORY;
 822             goto done;
 823         }
 824         records = temp_records;
 825     }
 826
 827     if (!strcmpW(labels[0], suminfo))
 828     {
 829         r = msi_add_suminfo( db, records, num_records, num_columns );
 830         if (r != ERROR_SUCCESS)
 831         {
 832             r = ERROR_FUNCTION_FAILED;
 833             goto done;
 834         }
 835     }
 836     else
 837     {
 838         if (!TABLE_Exists(db, labels[0]))
 839         {
 840             r = msi_add_table_to_db( db, columns, types, labels, num_labels, num_columns );
 841             if (r != ERROR_SUCCESS)
 842             {
 843                 r = ERROR_FUNCTION_FAILED;
 844                 goto done;
 845             }
 846         }
 847
 848         r = msi_add_records_to_table( db, columns, types, labels, records, num_columns, num_records, path );
 849     }
 850
 851 done:
 852     msi_free(path);
 853     msi_free(data);
 854     msi_free(columns);
 855     msi_free(types);
 856     msi_free(labels);
 857
 858     for (i = 0; i < num_records; i++)
 859         msi_free(records[i]);
 860
 861     msi_free(records);
 862
 863     return r;
 864 }
 865
 866 UINT WINAPI MsiDatabaseImportW(MSIHANDLE handle, LPCWSTR szFolder, LPCWSTR szFilename)
 867 {
 868     MSIDATABASE *db;
 869     UINT r;
 870
 871     TRACE("%x %s %s\n",handle,debugstr_w(szFolder), debugstr_w(szFilename));
 872
 873     db = msihandle2msiinfo( handle, MSIHANDLETYPE_DATABASE );
 874     if( !db )
 875     {
 876         MSIHANDLE remote_database = msi_get_remote( handle );
 877         if ( !remote_database )
 878             return ERROR_INVALID_HANDLE;
 879
 880         WARN("MsiDatabaseImport not allowed during a custom action!\n");
 881
 882         return ERROR_SUCCESS;
 883     }
 884
 885     r = MSI_DatabaseImport( db, szFolder, szFilename );
 886     msiobj_release( &db->hdr );
 887     return r;
 888 }
 889
 890 UINT WINAPI MsiDatabaseImportA( MSIHANDLE handle,
 891                LPCSTR szFolder, LPCSTR szFilename )
 892 {
 893     LPWSTR path = NULL, file = NULL;
 894     UINT r = ERROR_OUTOFMEMORY;
 895
 896     TRACE("%x %s %s\n", handle, debugstr_a(szFolder), debugstr_a(szFilename));
 897
 898     if( szFolder )
 899     {
 900         path = strdupAtoW( szFolder );
 901         if( !path )
 902             goto end;
 903     }
 904
 905     if( szFilename )
 906     {
 907         file = strdupAtoW( szFilename );
 908         if( !file )
 909             goto end;
 910     }
 911
 912     r = MsiDatabaseImportW( handle, path, file );
 913
 914 end:
 915     msi_free( path );
 916     msi_free( file );
 917
 918     return r;
 919 }
 920
 921 static UINT msi_export_record( HANDLE handle, MSIRECORD *row, UINT start )
 922 {
 923     UINT i, count, len, r = ERROR_SUCCESS;
 924     const char *sep;
 925     char *buffer;
 926     DWORD sz;
 927
 928     len = 0x100;
 929     buffer = msi_alloc( len );
 930     if ( !buffer )
 931         return ERROR_OUTOFMEMORY;
 932
 933     count = MSI_RecordGetFieldCount( row );
 934     for ( i=start; i<=count; i++ )
 935     {
 936         sz = len;
 937         r = MSI_RecordGetStringA( row, i, buffer, &sz );
 938         if (r == ERROR_MORE_DATA)
 939         {
 940             char *p = msi_realloc( buffer, sz + 1 );
 941             if (!p)
 942                 break;
 943             len = sz + 1;
 944             buffer = p;
 945         }
 946         sz = len;
 947         r = MSI_RecordGetStringA( row, i, buffer, &sz );
 948         if (r != ERROR_SUCCESS)
 949             break;
 950
 951         if (!WriteFile( handle, buffer, sz, &sz, NULL ))
 952         {
 953             r = ERROR_FUNCTION_FAILED;
 954             break;
 955         }
 956
 957         sep = (i < count) ? "\t" : "\r\n";
 958         if (!WriteFile( handle, sep, strlen(sep), &sz, NULL ))
 959         {
 960             r = ERROR_FUNCTION_FAILED;
 961             break;
 962         }
 963     }
 964     msi_free( buffer );
 965     return r;
 966 }
 967
 968 static UINT msi_export_row( MSIRECORD *row, void *arg )
 969 {
 970     return msi_export_record( arg, row, 1 );
 971 }
 972
 973 static UINT msi_export_forcecodepage( HANDLE handle, UINT codepage )
 974 {
 975     static const char fmt[] = "\r\n\r\n%u\t_ForceCodepage\r\n";
 976     char data[sizeof(fmt) + 10];
 977     DWORD sz;
 978
 979     sprintf( data, fmt, codepage );
 980
 981     sz = lstrlenA(data) + 1;
 982     if (!WriteFile(handle, data, sz, &sz, NULL))
 983         return ERROR_FUNCTION_FAILED;
 984
 985     return ERROR_SUCCESS;
 986 }
 987
 988 static UINT MSI_DatabaseExport( MSIDATABASE *db, LPCWSTR table,
 989                LPCWSTR folder, LPCWSTR file )
 990 {
 991     static const WCHAR query[] = {
 992         's','e','l','e','c','t',' ','*',' ','f','r','o','m',' ','%','s',0 };
 993     static const WCHAR forcecodepage[] = {
 994         '_','F','o','r','c','e','C','o','d','e','p','a','g','e',0 };
 995     MSIRECORD *rec = NULL;
 996     MSIQUERY *view = NULL;
 997     LPWSTR filename;
 998     HANDLE handle;
 999     UINT len, r;
1000
1001     TRACE("%p %s %s %s\n", db, debugstr_w(table),
1002           debugstr_w(folder), debugstr_w(file) );
1003
1004     if( folder == NULL || file == NULL )
1005         return ERROR_INVALID_PARAMETER;
1006
1007     len = lstrlenW(folder) + lstrlenW(file) + 2;
1008     filename = msi_alloc(len * sizeof (WCHAR));
1009     if (!filename)
1010         return ERROR_OUTOFMEMORY;
1011
1012     lstrcpyW( filename, folder );
1013     lstrcatW( filename, szBackSlash );
1014     lstrcatW( filename, file );
1015
1016     handle = CreateFileW( filename, GENERIC_READ | GENERIC_WRITE, 0,
1017                           NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL );
1018     msi_free( filename );
1019     if (handle == INVALID_HANDLE_VALUE)
1020         return ERROR_FUNCTION_FAILED;
1021
1022     if (!strcmpW( table, forcecodepage ))
1023     {
1024         UINT codepage = msi_get_string_table_codepage( db->strings );
1025         r = msi_export_forcecodepage( handle, codepage );
1026         goto done;
1027     }
1028
1029     r = MSI_OpenQuery( db, &view, query, table );
1030     if (r == ERROR_SUCCESS)
1031     {
1032         /* write out row 1, the column names */
1033         r = MSI_ViewGetColumnInfo(view, MSICOLINFO_NAMES, &rec);
1034         if (r == ERROR_SUCCESS)
1035         {
1036             msi_export_record( handle, rec, 1 );
1037             msiobj_release( &rec->hdr );
1038         }
1039
1040         /* write out row 2, the column types */
1041         r = MSI_ViewGetColumnInfo(view, MSICOLINFO_TYPES, &rec);
1042         if (r == ERROR_SUCCESS)
1043         {
1044             msi_export_record( handle, rec, 1 );
1045             msiobj_release( &rec->hdr );
1046         }
1047
1048         /* write out row 3, the table name + keys */
1049         r = MSI_DatabaseGetPrimaryKeys( db, table, &rec );
1050         if (r == ERROR_SUCCESS)
1051         {
1052             MSI_RecordSetStringW( rec, 0, table );
1053             msi_export_record( handle, rec, 0 );
1054             msiobj_release( &rec->hdr );
1055         }
1056
1057         /* write out row 4 onwards, the data */
1058         r = MSI_IterateRecords( view, 0, msi_export_row, handle );
1059         msiobj_release( &view->hdr );
1060     }
1061
1062 done:
1063     CloseHandle( handle );
1064     return r;
1065 }
1066
1067 /***********************************************************************
1068  * MsiExportDatabaseW        [MSI.@]
1069  *
1070  * Writes a file containing the table data as tab separated ASCII.
1071  *
1072  * The format is as follows:
1073  *
1074  * row1 : colname1 <tab> colname2 <tab> .... colnameN <cr> <lf>
1075  * row2 : coltype1 <tab> coltype2 <tab> .... coltypeN <cr> <lf>
1076  * row3 : tablename <tab> key1 <tab> key2 <tab> ... keyM <cr> <lf>
1077  *
1078  * Followed by the data, starting at row 1 with one row per line
1079  *
1080  * row4 : data <tab> data <tab> data <tab> ... data <cr> <lf>
1081  */
1082 UINT WINAPI MsiDatabaseExportW( MSIHANDLE handle, LPCWSTR szTable,
1083                LPCWSTR szFolder, LPCWSTR szFilename )
1084 {
1085     MSIDATABASE *db;
1086     UINT r;
1087
1088     TRACE("%x %s %s %s\n", handle, debugstr_w(szTable),
1089           debugstr_w(szFolder), debugstr_w(szFilename));
1090
1091     db = msihandle2msiinfo( handle, MSIHANDLETYPE_DATABASE );
1092     if( !db )
1093     {
1094         MSIHANDLE remote_database = msi_get_remote(handle);
1095         if ( !remote_database )
1096             return ERROR_INVALID_HANDLE;
1097
1098         WARN("MsiDatabaseExport not allowed during a custom action!\n");
1099
1100         return ERROR_SUCCESS;
1101     }
1102
1103     r = MSI_DatabaseExport( db, szTable, szFolder, szFilename );
1104     msiobj_release( &db->hdr );
1105     return r;
1106 }
1107
1108 UINT WINAPI MsiDatabaseExportA( MSIHANDLE handle, LPCSTR szTable,
1109                LPCSTR szFolder, LPCSTR szFilename )
1110 {
1111     LPWSTR path = NULL, file = NULL, table = NULL;
1112     UINT r = ERROR_OUTOFMEMORY;
1113
1114     TRACE("%x %s %s %s\n", handle, debugstr_a(szTable),
1115           debugstr_a(szFolder), debugstr_a(szFilename));
1116
1117     if( szTable )
1118     {
1119         table = strdupAtoW( szTable );
1120         if( !table )
1121             goto end;
1122     }
1123
1124     if( szFolder )
1125     {
1126         path = strdupAtoW( szFolder );
1127         if( !path )
1128             goto end;
1129     }
1130
1131     if( szFilename )
1132     {
1133         file = strdupAtoW( szFilename );
1134         if( !file )
1135             goto end;
1136     }
1137
1138     r = MsiDatabaseExportW( handle, table, path, file );
1139
1140 end:
1141     msi_free( table );
1142     msi_free( path );
1143     msi_free( file );
1144
1145     return r;
1146 }
1147
1148 UINT WINAPI MsiDatabaseMergeA(MSIHANDLE hDatabase, MSIHANDLE hDatabaseMerge,
1149                               LPCSTR szTableName)
1150 {
1151     UINT r;
1152     LPWSTR table;
1153
1154     TRACE("(%d, %d, %s)\n", hDatabase, hDatabaseMerge,
1155           debugstr_a(szTableName));
1156
1157     table = strdupAtoW(szTableName);
1158     r = MsiDatabaseMergeW(hDatabase, hDatabaseMerge, table);
1159
1160     msi_free(table);
1161     return r;
1162 }
1163
1164 typedef struct _tagMERGETABLE
1165 {
1166     struct list entry;
1167     struct list rows;
1168     LPWSTR name;
1169     DWORD numconflicts;
1170     LPWSTR *columns;
1171     DWORD numcolumns;
1172     LPWSTR *types;
1173     DWORD numtypes;
1174     LPWSTR *labels;
1175     DWORD numlabels;
1176 } MERGETABLE;
1177
1178 typedef struct _tagMERGEROW
1179 {
1180     struct list entry;
1181     MSIRECORD *data;
1182 } MERGEROW;
1183
1184 typedef struct _tagMERGEDATA
1185 {
1186     MSIDATABASE *db;
1187     MSIDATABASE *merge;
1188     MERGETABLE *curtable;
1189     MSIQUERY *curview;
1190     struct list *tabledata;
1191 } MERGEDATA;
1192
1193 static BOOL merge_type_match(LPCWSTR type1, LPCWSTR type2)
1194 {
1195     if (((type1[0] == 'l') || (type1[0] == 's')) &&
1196         ((type2[0] == 'l') || (type2[0] == 's')))
1197         return TRUE;
1198
1199     if (((type1[0] == 'L') || (type1[0] == 'S')) &&
1200         ((type2[0] == 'L') || (type2[0] == 'S')))
1201         return TRUE;
1202
1203     return !strcmpW( type1, type2 );
1204 }
1205
1206 static UINT merge_verify_colnames(MSIQUERY *dbview, MSIQUERY *mergeview)
1207 {
1208     MSIRECORD *dbrec, *mergerec;
1209     UINT r, i, count;
1210
1211     r = MSI_ViewGetColumnInfo(dbview, MSICOLINFO_NAMES, &dbrec);
1212     if (r != ERROR_SUCCESS)
1213         return r;
1214
1215     r = MSI_ViewGetColumnInfo(mergeview, MSICOLINFO_NAMES, &mergerec);
1216     if (r != ERROR_SUCCESS)
1217     {
1218         msiobj_release(&dbrec->hdr);
1219         return r;
1220     }
1221
1222     count = MSI_RecordGetFieldCount(dbrec);
1223     for (i = 1; i <= count; i++)
1224     {
1225         if (!MSI_RecordGetString(mergerec, i))
1226             break;
1227
1228         if (strcmpW( MSI_RecordGetString( dbrec, i ), MSI_RecordGetString( mergerec, i ) ))
1229         {
1230             r = ERROR_DATATYPE_MISMATCH;
1231             goto done;
1232         }
1233     }
1234
1235     msiobj_release(&dbrec->hdr);
1236     msiobj_release(&mergerec->hdr);
1237     dbrec = mergerec = NULL;
1238
1239     r = MSI_ViewGetColumnInfo(dbview, MSICOLINFO_TYPES, &dbrec);
1240     if (r != ERROR_SUCCESS)
1241         return r;
1242
1243     r = MSI_ViewGetColumnInfo(mergeview, MSICOLINFO_TYPES, &mergerec);
1244     if (r != ERROR_SUCCESS)
1245     {
1246         msiobj_release(&dbrec->hdr);
1247         return r;
1248     }
1249
1250     count = MSI_RecordGetFieldCount(dbrec);
1251     for (i = 1; i <= count; i++)
1252     {
1253         if (!MSI_RecordGetString(mergerec, i))
1254             break;
1255
1256         if (!merge_type_match(MSI_RecordGetString(dbrec, i),
1257                      MSI_RecordGetString(mergerec, i)))
1258         {
1259             r = ERROR_DATATYPE_MISMATCH;
1260             break;
1261         }
1262     }
1263
1264 done:
1265     msiobj_release(&dbrec->hdr);
1266     msiobj_release(&mergerec->hdr);
1267
1268     return r;
1269 }
1270
1271 static UINT merge_verify_primary_keys(MSIDATABASE *db, MSIDATABASE *mergedb,
1272                                       LPCWSTR table)
1273 {
1274     MSIRECORD *dbrec, *mergerec = NULL;
1275     UINT r, i, count;
1276
1277     r = MSI_DatabaseGetPrimaryKeys(db, table, &dbrec);
1278     if (r != ERROR_SUCCESS)
1279         return r;
1280
1281     r = MSI_DatabaseGetPrimaryKeys(mergedb, table, &mergerec);
1282     if (r != ERROR_SUCCESS)
1283         goto done;
1284
1285     count = MSI_RecordGetFieldCount(dbrec);
1286     if (count != MSI_RecordGetFieldCount(mergerec))
1287     {
1288         r = ERROR_DATATYPE_MISMATCH;
1289         goto done;
1290     }
1291
1292     for (i = 1; i <= count; i++)
1293     {
1294         if (strcmpW( MSI_RecordGetString( dbrec, i ), MSI_RecordGetString( mergerec, i ) ))
1295         {
1296             r = ERROR_DATATYPE_MISMATCH;
1297             goto done;
1298         }
1299     }
1300
1301 done:
1302     msiobj_release(&dbrec->hdr);
1303     msiobj_release(&mergerec->hdr);
1304
1305     return r;
1306 }
1307
1308 static LPWSTR get_key_value(MSIQUERY *view, LPCWSTR key, MSIRECORD *rec)
1309 {
1310     MSIRECORD *colnames;
1311     LPWSTR str, val;
1312     UINT r, i = 0, sz = 0;
1313     int cmp;
1314
1315     r = MSI_ViewGetColumnInfo(view, MSICOLINFO_NAMES, &colnames);
1316     if (r != ERROR_SUCCESS)
1317         return NULL;
1318
1319     do
1320     {
1321         str = msi_dup_record_field(colnames, ++i);
1322         cmp = strcmpW( key, str );
1323         msi_free(str);
1324     } while (cmp);
1325
1326     msiobj_release(&colnames->hdr);
1327
1328     r = MSI_RecordGetStringW(rec, i, NULL, &sz);
1329     if (r != ERROR_SUCCESS)
1330         return NULL;
1331     sz++;
1332
1333     if (MSI_RecordGetString(rec, i))  /* check record field is a string */
1334     {
1335         /* quote string record fields */
1336         const WCHAR szQuote[] = {'\'', 0};
1337         sz += 2;
1338         val = msi_alloc(sz*sizeof(WCHAR));
1339         if (!val)
1340             return NULL;
1341
1342         lstrcpyW(val, szQuote);
1343         r = MSI_RecordGetStringW(rec, i, val+1, &sz);
1344         lstrcpyW(val+1+sz, szQuote);
1345     }
1346     else
1347     {
1348         /* do not quote integer record fields */
1349         val = msi_alloc(sz*sizeof(WCHAR));
1350         if (!val)
1351             return NULL;
1352
1353         r = MSI_RecordGetStringW(rec, i, val, &sz);
1354     }
1355
1356     if (r != ERROR_SUCCESS)
1357     {
1358         ERR("failed to get string!\n");
1359         msi_free(val);
1360         return NULL;
1361     }
1362
1363     return val;
1364 }
1365
1366 static LPWSTR create_diff_row_query(MSIDATABASE *merge, MSIQUERY *view,
1367                                     LPWSTR table, MSIRECORD *rec)
1368 {
1369     LPWSTR query = NULL, clause = NULL, val;
1370     LPCWSTR setptr, key;
1371     DWORD size, oldsize;
1372     MSIRECORD *keys;
1373     UINT r, i, count;
1374
1375     static const WCHAR keyset[] = {
1376         '`','%','s','`',' ','=',' ','%','s',' ','A','N','D',' ',0};
1377     static const WCHAR lastkeyset[] = {
1378         '`','%','s','`',' ','=',' ','%','s',' ',0};
1379     static const WCHAR fmt[] = {'S','E','L','E','C','T',' ','*',' ',
1380         'F','R','O','M',' ','`','%','s','`',' ',
1381         'W','H','E','R','E',' ','%','s',0};
1382
1383     r = MSI_DatabaseGetPrimaryKeys(merge, table, &keys);
1384     if (r != ERROR_SUCCESS)
1385         return NULL;
1386
1387     clause = msi_alloc_zero(sizeof(WCHAR));
1388     if (!clause)
1389         goto done;
1390
1391     size = 1;
1392     count = MSI_RecordGetFieldCount(keys);
1393     for (i = 1; i <= count; i++)
1394     {
1395         key = MSI_RecordGetString(keys, i);
1396         val = get_key_value(view, key, rec);
1397
1398         if (i == count)
1399             setptr = lastkeyset;
1400         else
1401             setptr = keyset;
1402
1403         oldsize = size;
1404         size += lstrlenW(setptr) + lstrlenW(key) + lstrlenW(val) - 4;
1405         clause = msi_realloc(clause, size * sizeof (WCHAR));
1406         if (!clause)
1407         {
1408             msi_free(val);
1409             goto done;
1410         }
1411
1412         sprintfW(clause + oldsize - 1, setptr, key, val);
1413         msi_free(val);
1414     }
1415
1416     size = lstrlenW(fmt) + lstrlenW(table) + lstrlenW(clause) + 1;
1417     query = msi_alloc(size * sizeof(WCHAR));
1418     if (!query)
1419         goto done;
1420
1421     sprintfW(query, fmt, table, clause);
1422
1423 done:
1424     msi_free(clause);
1425     msiobj_release(&keys->hdr);
1426     return query;
1427 }
1428
1429 static UINT merge_diff_row(MSIRECORD *rec, LPVOID param)
1430 {
1431     MERGEDATA *data = param;
1432     MERGETABLE *table = data->curtable;
1433     MERGEROW *mergerow;
1434     MSIQUERY *dbview = NULL;
1435     MSIRECORD *row = NULL;
1436     LPWSTR query = NULL;
1437     UINT r = ERROR_SUCCESS;
1438
1439     if (TABLE_Exists(data->db, table->name))
1440     {
1441         query = create_diff_row_query(data->merge, data->curview, table->name, rec);
1442         if (!query)
1443             return ERROR_OUTOFMEMORY;
1444
1445         r = MSI_DatabaseOpenViewW(data->db, query, &dbview);
1446         if (r != ERROR_SUCCESS)
1447             goto done;
1448
1449         r = MSI_ViewExecute(dbview, NULL);
1450         if (r != ERROR_SUCCESS)
1451             goto done;
1452
1453         r = MSI_ViewFetch(dbview, &row);
1454         if (r == ERROR_SUCCESS && !MSI_RecordsAreEqual(rec, row))
1455         {
1456             table->numconflicts++;
1457             goto done;
1458         }
1459         else if (r != ERROR_NO_MORE_ITEMS)
1460             goto done;
1461
1462         r = ERROR_SUCCESS;
1463     }
1464
1465     mergerow = msi_alloc(sizeof(MERGEROW));
1466     if (!mergerow)
1467     {
1468         r = ERROR_OUTOFMEMORY;
1469         goto done;
1470     }
1471
1472     mergerow->data = MSI_CloneRecord(rec);
1473     if (!mergerow->data)
1474     {
1475         r = ERROR_OUTOFMEMORY;
1476         msi_free(mergerow);
1477         goto done;
1478     }
1479
1480     list_add_tail(&table->rows, &mergerow->entry);
1481
1482 done:
1483     msi_free(query);
1484     msiobj_release(&row->hdr);
1485     msiobj_release(&dbview->hdr);
1486     return r;
1487 }
1488
1489 static UINT msi_get_table_labels(MSIDATABASE *db, LPCWSTR table, LPWSTR **labels, DWORD *numlabels)
1490 {
1491     UINT r, i, count;
1492     MSIRECORD *prec = NULL;
1493
1494     r = MSI_DatabaseGetPrimaryKeys(db, table, &prec);
1495     if (r != ERROR_SUCCESS)
1496         return r;
1497
1498     count = MSI_RecordGetFieldCount(prec);
1499     *numlabels = count + 1;
1500     *labels = msi_alloc((*numlabels)*sizeof(LPWSTR));
1501     if (!*labels)
1502     {
1503         r = ERROR_OUTOFMEMORY;
1504         goto end;
1505     }
1506
1507     (*labels)[0] = strdupW(table);
1508     for (i=1; i<=count; i++ )
1509     {
1510         (*labels)[i] = strdupW(MSI_RecordGetString(prec, i));
1511     }
1512
1513 end:
1514     msiobj_release( &prec->hdr );
1515     return r;
1516 }
1517
1518 static UINT msi_get_query_columns(MSIQUERY *query, LPWSTR **columns, DWORD *numcolumns)
1519 {
1520     UINT r, i, count;
1521     MSIRECORD *prec = NULL;
1522
1523     r = MSI_ViewGetColumnInfo(query, MSICOLINFO_NAMES, &prec);
1524     if (r != ERROR_SUCCESS)
1525         return r;
1526
1527     count = MSI_RecordGetFieldCount(prec);
1528     *columns = msi_alloc(count*sizeof(LPWSTR));
1529     if (!*columns)
1530     {
1531         r = ERROR_OUTOFMEMORY;
1532         goto end;
1533     }
1534
1535     for (i=1; i<=count; i++ )
1536     {
1537         (*columns)[i-1] = strdupW(MSI_RecordGetString(prec, i));
1538     }
1539
1540     *numcolumns = count;
1541
1542 end:
1543     msiobj_release( &prec->hdr );
1544     return r;
1545 }
1546
1547 static UINT msi_get_query_types(MSIQUERY *query, LPWSTR **types, DWORD *numtypes)
1548 {
1549     UINT r, i, count;
1550     MSIRECORD *prec = NULL;
1551
1552     r = MSI_ViewGetColumnInfo(query, MSICOLINFO_TYPES, &prec);
1553     if (r != ERROR_SUCCESS)
1554         return r;
1555
1556     count = MSI_RecordGetFieldCount(prec);
1557     *types = msi_alloc(count*sizeof(LPWSTR));
1558     if (!*types)
1559     {
1560         r = ERROR_OUTOFMEMORY;
1561         goto end;
1562     }
1563
1564     *numtypes = count;
1565     for (i=1; i<=count; i++ )
1566     {
1567         (*types)[i-1] = strdupW(MSI_RecordGetString(prec, i));
1568     }
1569
1570 end:
1571     msiobj_release( &prec->hdr );
1572     return r;
1573 }
1574
1575 static void merge_free_rows(MERGETABLE *table)
1576 {
1577     struct list *item, *cursor;
1578
1579     LIST_FOR_EACH_SAFE(item, cursor, &table->rows)
1580     {
1581         MERGEROW *row = LIST_ENTRY(item, MERGEROW, entry);
1582
1583         list_remove(&row->entry);
1584         msiobj_release(&row->data->hdr);
1585         msi_free(row);
1586     }
1587 }
1588
1589 static void free_merge_table(MERGETABLE *table)
1590 {
1591     UINT i;
1592
1593     if (table->labels != NULL)
1594     {
1595         for (i = 0; i < table->numlabels; i++)
1596             msi_free(table->labels[i]);
1597
1598         msi_free(table->labels);
1599     }
1600
1601     if (table->columns != NULL)
1602     {
1603         for (i = 0; i < table->numcolumns; i++)
1604             msi_free(table->columns[i]);
1605
1606         msi_free(table->columns);
1607     }
1608
1609     if (table->types != NULL)
1610     {
1611         for (i = 0; i < table->numtypes; i++)
1612             msi_free(table->types[i]);
1613
1614         msi_free(table->types);
1615     }
1616
1617     msi_free(table->name);
1618     merge_free_rows(table);
1619
1620     msi_free(table);
1621 }
1622
1623 static UINT msi_get_merge_table (MSIDATABASE *db, LPCWSTR name, MERGETABLE **ptable)
1624 {
1625     UINT r;
1626     MERGETABLE *table;
1627     MSIQUERY *mergeview = NULL;
1628
1629     static const WCHAR query[] = {'S','E','L','E','C','T',' ','*',' ',
1630         'F','R','O','M',' ','`','%','s','`',0};
1631
1632     table = msi_alloc_zero(sizeof(MERGETABLE));
1633     if (!table)
1634     {
1635        *ptable = NULL;
1636        return ERROR_OUTOFMEMORY;
1637     }
1638
1639     r = msi_get_table_labels(db, name, &table->labels, &table->numlabels);
1640     if (r != ERROR_SUCCESS)
1641         goto err;
1642
1643     r = MSI_OpenQuery(db, &mergeview, query, name);
1644     if (r != ERROR_SUCCESS)
1645         goto err;
1646
1647     r = msi_get_query_columns(mergeview, &table->columns, &table->numcolumns);
1648     if (r != ERROR_SUCCESS)
1649         goto err;
1650
1651     r = msi_get_query_types(mergeview, &table->types, &table->numtypes);
1652     if (r != ERROR_SUCCESS)
1653         goto err;
1654
1655     list_init(&table->rows);
1656
1657     table->name = strdupW(name);
1658     table->numconflicts = 0;
1659
1660     msiobj_release(&mergeview->hdr);
1661     *ptable = table;
1662     return ERROR_SUCCESS;
1663
1664 err:
1665     msiobj_release(&mergeview->hdr);
1666     free_merge_table(table);
1667     *ptable = NULL;
1668     return r;
1669 }
1670
1671 static UINT merge_diff_tables(MSIRECORD *rec, LPVOID param)
1672 {
1673     MERGEDATA *data = param;
1674     MERGETABLE *table;
1675     MSIQUERY *dbview = NULL;
1676     MSIQUERY *mergeview = NULL;
1677     LPCWSTR name;
1678     UINT r;
1679
1680     static const WCHAR query[] = {'S','E','L','E','C','T',' ','*',' ',
1681         'F','R','O','M',' ','`','%','s','`',0};
1682
1683     name = MSI_RecordGetString(rec, 1);
1684
1685     r = MSI_OpenQuery(data->merge, &mergeview, query, name);
1686     if (r != ERROR_SUCCESS)
1687         goto done;
1688
1689     if (TABLE_Exists(data->db, name))
1690     {
1691         r = MSI_OpenQuery(data->db, &dbview, query, name);
1692         if (r != ERROR_SUCCESS)
1693             goto done;
1694
1695         r = merge_verify_colnames(dbview, mergeview);
1696         if (r != ERROR_SUCCESS)
1697             goto done;
1698
1699         r = merge_verify_primary_keys(data->db, data->merge, name);
1700         if (r != ERROR_SUCCESS)
1701             goto done;
1702     }
1703
1704     r = msi_get_merge_table(data->merge, name, &table);
1705     if (r != ERROR_SUCCESS)
1706         goto done;
1707
1708     data->curtable = table;
1709     data->curview = mergeview;
1710     r = MSI_IterateRecords(mergeview, NULL, merge_diff_row, data);
1711     if (r != ERROR_SUCCESS)
1712     {
1713         free_merge_table(table);
1714         goto done;
1715     }
1716
1717     list_add_tail(data->tabledata, &table->entry);
1718
1719 done:
1720     msiobj_release(&dbview->hdr);
1721     msiobj_release(&mergeview->hdr);
1722     return r;
1723 }
1724
1725 static UINT gather_merge_data(MSIDATABASE *db, MSIDATABASE *merge,
1726                               struct list *tabledata)
1727 {
1728     static const WCHAR query[] = {
1729         'S','E','L','E','C','T',' ','*',' ','F','R','O','M',' ',
1730         '`','_','T','a','b','l','e','s','`',0};
1731     MSIQUERY *view;
1732     MERGEDATA data;
1733     UINT r;
1734
1735     r = MSI_DatabaseOpenViewW(merge, query, &view);
1736     if (r != ERROR_SUCCESS)
1737         return r;
1738
1739     data.db = db;
1740     data.merge = merge;
1741     data.tabledata = tabledata;
1742     r = MSI_IterateRecords(view, NULL, merge_diff_tables, &data);
1743     msiobj_release(&view->hdr);
1744     return r;
1745 }
1746
1747 static UINT merge_table(MSIDATABASE *db, MERGETABLE *table)
1748 {
1749     UINT r;
1750     MERGEROW *row;
1751     MSIVIEW *tv;
1752
1753     if (!TABLE_Exists(db, table->name))
1754     {
1755         r = msi_add_table_to_db(db, table->columns, table->types,
1756                table->labels, table->numlabels, table->numcolumns);
1757         if (r != ERROR_SUCCESS)
1758            return ERROR_FUNCTION_FAILED;
1759     }
1760
1761     LIST_FOR_EACH_ENTRY(row, &table->rows, MERGEROW, entry)
1762     {
1763         r = TABLE_CreateView(db, table->name, &tv);
1764         if (r != ERROR_SUCCESS)
1765             return r;
1766
1767         r = tv->ops->insert_row(tv, row->data, -1, FALSE);
1768         tv->ops->delete(tv);
1769
1770         if (r != ERROR_SUCCESS)
1771             return r;
1772     }
1773
1774     return ERROR_SUCCESS;
1775 }
1776
1777 static UINT update_merge_errors(MSIDATABASE *db, LPCWSTR error,
1778                                 LPWSTR table, DWORD numconflicts)
1779 {
1780     UINT r;
1781     MSIQUERY *view;
1782
1783     static const WCHAR create[] = {
1784         'C','R','E','A','T','E',' ','T','A','B','L','E',' ',
1785         '`','%','s','`',' ','(','`','T','a','b','l','e','`',' ',
1786         'C','H','A','R','(','2','5','5',')',' ','N','O','T',' ',
1787         'N','U','L','L',',',' ','`','N','u','m','R','o','w','M','e','r','g','e',
1788         'C','o','n','f','l','i','c','t','s','`',' ','S','H','O','R','T',' ',
1789         'N','O','T',' ','N','U','L','L',' ','P','R','I','M','A','R','Y',' ',
1790         'K','E','Y',' ','`','T','a','b','l','e','`',')',0};
1791     static const WCHAR insert[] = {
1792         'I','N','S','E','R','T',' ','I','N','T','O',' ',
1793         '`','%','s','`',' ','(','`','T','a','b','l','e','`',',',' ',
1794         '`','N','u','m','R','o','w','M','e','r','g','e',
1795         'C','o','n','f','l','i','c','t','s','`',')',' ','V','A','L','U','E','S',
1796         ' ','(','\'','%','s','\'',',',' ','%','d',')',0};
1797
1798     if (!TABLE_Exists(db, error))
1799     {
1800         r = MSI_OpenQuery(db, &view, create, error);
1801         if (r != ERROR_SUCCESS)
1802             return r;
1803
1804         r = MSI_ViewExecute(view, NULL);
1805         msiobj_release(&view->hdr);
1806         if (r != ERROR_SUCCESS)
1807             return r;
1808     }
1809
1810     r = MSI_OpenQuery(db, &view, insert, error, table, numconflicts);
1811     if (r != ERROR_SUCCESS)
1812         return r;
1813
1814     r = MSI_ViewExecute(view, NULL);
1815     msiobj_release(&view->hdr);
1816     return r;
1817 }
1818
1819 UINT WINAPI MsiDatabaseMergeW(MSIHANDLE hDatabase, MSIHANDLE hDatabaseMerge,
1820                               LPCWSTR szTableName)
1821 {
1822     struct list tabledata = LIST_INIT(tabledata);
1823     struct list *item, *cursor;
1824     MSIDATABASE *db, *merge;
1825     MERGETABLE *table;
1826     BOOL conflicts;
1827     UINT r;
1828
1829     TRACE("(%d, %d, %s)\n", hDatabase, hDatabaseMerge,
1830           debugstr_w(szTableName));
1831
1832     if (szTableName && !*szTableName)
1833         return ERROR_INVALID_TABLE;
1834
1835     db = msihandle2msiinfo(hDatabase, MSIHANDLETYPE_DATABASE);
1836     merge = msihandle2msiinfo(hDatabaseMerge, MSIHANDLETYPE_DATABASE);
1837     if (!db || !merge)
1838     {
1839         r = ERROR_INVALID_HANDLE;
1840         goto done;
1841     }
1842
1843     r = gather_merge_data(db, merge, &tabledata);
1844     if (r != ERROR_SUCCESS)
1845         goto done;
1846
1847     conflicts = FALSE;
1848     LIST_FOR_EACH_ENTRY(table, &tabledata, MERGETABLE, entry)
1849     {
1850         if (table->numconflicts)
1851         {
1852             conflicts = TRUE;
1853
1854             r = update_merge_errors(db, szTableName, table->name,
1855                                     table->numconflicts);
1856             if (r != ERROR_SUCCESS)
1857                 break;
1858         }
1859         else
1860         {
1861             r = merge_table(db, table);
1862             if (r != ERROR_SUCCESS)
1863                 break;
1864         }
1865     }
1866
1867     LIST_FOR_EACH_SAFE(item, cursor, &tabledata)
1868     {
1869         MERGETABLE *table = LIST_ENTRY(item, MERGETABLE, entry);
1870         list_remove(&table->entry);
1871         free_merge_table(table);
1872     }
1873
1874     if (conflicts)
1875         r = ERROR_FUNCTION_FAILED;
1876
1877 done:
1878     msiobj_release(&db->hdr);
1879     msiobj_release(&merge->hdr);
1880     return r;
1881 }
1882
1883 MSIDBSTATE WINAPI MsiGetDatabaseState( MSIHANDLE handle )
1884 {
1885     MSIDBSTATE ret = MSIDBSTATE_READ;
1886     MSIDATABASE *db;
1887
1888     TRACE("%d\n", handle);
1889
1890     db = msihandle2msiinfo( handle, MSIHANDLETYPE_DATABASE );
1891     if( !db )
1892     {
1893         MSIHANDLE remote_database = msi_get_remote(handle);
1894         if ( !remote_database )
1895             return MSIDBSTATE_ERROR;
1896
1897         WARN("MsiGetDatabaseState not allowed during a custom action!\n");
1898
1899         return MSIDBSTATE_READ;
1900     }
1901
1902     if (db->mode != MSIDBOPEN_READONLY )
1903         ret = MSIDBSTATE_WRITE;
1904     msiobj_release( &db->hdr );
1905
1906     return ret;
1907 }
1908
1909 MSICONDITION __cdecl remote_DatabaseIsTablePersistent(MSIHANDLE db, LPCWSTR table)
1910 {
1911     return MsiDatabaseIsTablePersistentW(db, table);
1912 }
1913
1914 HRESULT __cdecl remote_DatabaseGetPrimaryKeys(MSIHANDLE db, LPCWSTR table, MSIHANDLE *keys)
1915 {
1916     UINT r = MsiDatabaseGetPrimaryKeysW(db, table, keys);
1917     return HRESULT_FROM_WIN32(r);
1918 }
1919
1920 HRESULT __cdecl remote_DatabaseGetSummaryInformation(MSIHANDLE db, UINT updatecount, MSIHANDLE *suminfo)
1921 {
1922     UINT r = MsiGetSummaryInformationW(db, NULL, updatecount, suminfo);
1923     return HRESULT_FROM_WIN32(r);
1924 }
1925
1926 UINT __cdecl remote_DatabaseOpenView(MSIHANDLE db, LPCWSTR query, MSIHANDLE *view)
1927 {
1928     return MsiDatabaseOpenViewW(db, query, view);
1929 }