dlls/msi/helpers.c

   1 /*
   2  * Implementation of the Microsoft Installer (msi.dll)
   3  *
   4  * Copyright 2005 Aric Stewart 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 /*
  22  * Here are helper functions formally in action.c that are used by a variety of
  23  * actions and functions.
  24  */
  25
  26 #include <stdarg.h>
  27
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "winerror.h"
  31 #include "wine/debug.h"
  32 #include "msipriv.h"
  33 #include "winuser.h"
  34 #include "winreg.h"
  35 #include "shlwapi.h"
  36 #include "wine/unicode.h"
  37 #include "msidefs.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(msi);
  40
  41 static const WCHAR cszTargetDir[] = {'T','A','R','G','E','T','D','I','R',0};
  42 static const WCHAR cszDatabase[]={'D','A','T','A','B','A','S','E',0};
  43
  44 const WCHAR cszSourceDir[] = {'S','o','u','r','c','e','D','i','r',0};
  45 const WCHAR cszSOURCEDIR[] = {'S','O','U','R','C','E','D','I','R',0};
  46 const WCHAR cszRootDrive[] = {'R','O','O','T','D','R','I','V','E',0};
  47 const WCHAR cszbs[]={'\\',0};
  48
  49 LPWSTR build_icon_path(MSIPACKAGE *package, LPCWSTR icon_name )
  50 {
  51     LPWSTR SystemFolder, dest, FilePath;
  52
  53     static const WCHAR szInstaller[] =
  54         {'M','i','c','r','o','s','o','f','t','\\',
  55          'I','n','s','t','a','l','l','e','r','\\',0};
  56     static const WCHAR szFolder[] =
  57         {'A','p','p','D','a','t','a','F','o','l','d','e','r',0};
  58
  59     SystemFolder = msi_dup_property( package, szFolder );
  60
  61     dest = build_directory_name(3, SystemFolder, szInstaller, package->ProductCode);
  62
  63     create_full_pathW(dest);
  64
  65     FilePath = build_directory_name(2, dest, icon_name);
  66
  67     msi_free(SystemFolder);
  68     msi_free(dest);
  69     return FilePath;
  70 }
  71
  72 LPWSTR msi_dup_record_field( MSIRECORD *rec, INT field )
  73 {
  74     DWORD sz = 0;
  75     LPWSTR str;
  76     UINT r;
  77
  78     if (MSI_RecordIsNull( rec, field ))
  79         return NULL;
  80
  81     r = MSI_RecordGetStringW( rec, field, NULL, &sz );
  82     if (r != ERROR_SUCCESS)
  83         return NULL;
  84
  85     sz ++;
  86     str = msi_alloc( sz * sizeof (WCHAR) );
  87     if (!str)
  88         return str;
  89     str[0] = 0;
  90     r = MSI_RecordGetStringW( rec, field, str, &sz );
  91     if (r != ERROR_SUCCESS)
  92     {
  93         ERR("failed to get string!\n");
  94         msi_free( str );
  95         return NULL;
  96     }
  97     return str;
  98 }
  99
 100 MSICOMPONENT* get_loaded_component( MSIPACKAGE* package, LPCWSTR Component )
 101 {
 102     MSICOMPONENT *comp;
 103
 104     LIST_FOR_EACH_ENTRY( comp, &package->components, MSICOMPONENT, entry )
 105     {
 106         if (lstrcmpW(Component,comp->Component)==0)
 107             return comp;
 108     }
 109     return NULL;
 110 }
 111
 112 MSIFEATURE* get_loaded_feature(MSIPACKAGE* package, LPCWSTR Feature )
 113 {
 114     MSIFEATURE *feature;
 115
 116     LIST_FOR_EACH_ENTRY( feature, &package->features, MSIFEATURE, entry )
 117     {
 118         if (lstrcmpW( Feature, feature->Feature )==0)
 119             return feature;
 120     }
 121     return NULL;
 122 }
 123
 124 MSIFILE* get_loaded_file( MSIPACKAGE* package, LPCWSTR key )
 125 {
 126     MSIFILE *file;
 127
 128     LIST_FOR_EACH_ENTRY( file, &package->files, MSIFILE, entry )
 129     {
 130         if (lstrcmpW( key, file->File )==0)
 131             return file;
 132     }
 133     return NULL;
 134 }
 135
 136 int track_tempfile( MSIPACKAGE *package, LPCWSTR path )
 137 {
 138     MSITEMPFILE *temp;
 139
 140     TRACE("%s\n", debugstr_w(path));
 141
 142     LIST_FOR_EACH_ENTRY( temp, &package->tempfiles, MSITEMPFILE, entry )
 143         if (!lstrcmpW( path, temp->Path ))
 144             return 0;
 145
 146     temp = msi_alloc_zero( sizeof (MSITEMPFILE) );
 147     if (!temp)
 148         return -1;
 149
 150     list_add_head( &package->tempfiles, &temp->entry );
 151     temp->Path = strdupW( path );
 152
 153     return 0;
 154 }
 155
 156 MSIFOLDER *get_loaded_folder( MSIPACKAGE *package, LPCWSTR dir )
 157 {
 158     MSIFOLDER *folder;
 159
 160     LIST_FOR_EACH_ENTRY( folder, &package->folders, MSIFOLDER, entry )
 161     {
 162         if (lstrcmpW( dir, folder->Directory )==0)
 163             return folder;
 164     }
 165     return NULL;
 166 }
 167
 168 static LPWSTR get_source_root( MSIPACKAGE *package )
 169 {
 170     LPWSTR path, p;
 171
 172     path = msi_dup_property( package, cszSourceDir );
 173     if (path)
 174         return path;
 175
 176     path = msi_dup_property( package, cszDatabase );
 177     if (path)
 178     {
 179         p = strrchrW(path,'\\');
 180         if (p)
 181             *(p+1) = 0;
 182     }
 183     return path;
 184 }
 185
 186 /*
 187  * clean_spaces_from_path()
 188  *
 189  * removes spaces from the beginning and end of path segments
 190  * removes multiple \\ characters
 191  */
 192 static void clean_spaces_from_path( LPWSTR p )
 193 {
 194     LPWSTR q = p;
 195     int n, len = 0;
 196
 197     while (1)
 198     {
 199         /* copy until the end of the string or a space */
 200         while (*p != ' ' && (*q = *p))
 201         {
 202             p++, len++;
 203             /* reduce many backslashes to one */
 204             if (*p != '\\' || *q != '\\')
 205                 q++;
 206         }
 207
 208         /* quit at the end of the string */
 209         if (!*p)
 210             break;
 211
 212         /* count the number of spaces */
 213         n = 0;
 214         while (p[n] == ' ')
 215             n++;
 216
 217         /* if it's leading or trailing space, skip it */
 218         if ( len == 0 || p[-1] == '\\' || p[n] == '\\' )
 219             p += n;
 220         else  /* copy n spaces */
 221             while (n && (*q++ = *p++)) n--;
 222     }
 223 }
 224
 225 LPWSTR resolve_folder(MSIPACKAGE *package, LPCWSTR name, BOOL source,
 226                       BOOL set_prop, BOOL load_prop, MSIFOLDER **folder)
 227 {
 228     MSIFOLDER *f;
 229     LPWSTR p, path = NULL, parent;
 230
 231     TRACE("Working to resolve %s\n",debugstr_w(name));
 232
 233     if (!name)
 234         return NULL;
 235
 236     if (!lstrcmpW(name,cszSourceDir))
 237         name = cszTargetDir;
 238
 239     f = get_loaded_folder( package, name );
 240     if (!f)
 241         return NULL;
 242
 243     /* special resolving for Target and Source root dir */
 244     if (!strcmpW(name,cszTargetDir))
 245     {
 246         if (!f->ResolvedTarget && !f->Property)
 247         {
 248             LPWSTR check_path;
 249             check_path = msi_dup_property( package, cszTargetDir );
 250             if (!check_path)
 251             {
 252                 check_path = msi_dup_property( package, cszRootDrive );
 253                 if (set_prop)
 254                     MSI_SetPropertyW(package,cszTargetDir,check_path);
 255             }
 256
 257             /* correct misbuilt target dir */
 258             path = build_directory_name(2, check_path, NULL);
 259             clean_spaces_from_path( path );
 260             if (strcmpiW(path,check_path)!=0)
 261                 MSI_SetPropertyW(package,cszTargetDir,path);
 262             msi_free(check_path);
 263
 264             f->ResolvedTarget = path;
 265         }
 266
 267         if (!f->ResolvedSource)
 268             f->ResolvedSource = get_source_root( package );
 269     }
 270
 271     if (folder)
 272         *folder = f;
 273
 274     if (!source && f->ResolvedTarget)
 275     {
 276         path = strdupW( f->ResolvedTarget );
 277         TRACE("   already resolved to %s\n",debugstr_w(path));
 278         return path;
 279     }
 280
 281     if (source && f->ResolvedSource)
 282     {
 283         path = strdupW( f->ResolvedSource );
 284         TRACE("   (source)already resolved to %s\n",debugstr_w(path));
 285         return path;
 286     }
 287
 288     if (!source && f->Property)
 289     {
 290         path = build_directory_name( 2, f->Property, NULL );
 291
 292         TRACE("   internally set to %s\n",debugstr_w(path));
 293         if (set_prop)
 294             MSI_SetPropertyW( package, name, path );
 295         return path;
 296     }
 297
 298     if (!source && load_prop && (path = msi_dup_property( package, name )))
 299     {
 300         f->ResolvedTarget = strdupW( path );
 301         TRACE("   property set to %s\n", debugstr_w(path));
 302         return path;
 303     }
 304
 305     if (!f->Parent)
 306         return path;
 307
 308     parent = f->Parent;
 309
 310     TRACE(" ! Parent is %s\n", debugstr_w(parent));
 311
 312     p = resolve_folder(package, parent, source, set_prop, load_prop, NULL);
 313     if (!source)
 314     {
 315         TRACE("   TargetDefault = %s\n", debugstr_w(f->TargetDefault));
 316
 317         path = build_directory_name( 3, p, f->TargetDefault, NULL );
 318         clean_spaces_from_path( path );
 319         f->ResolvedTarget = strdupW( path );
 320         TRACE("target -> %s\n", debugstr_w(path));
 321         if (set_prop)
 322             MSI_SetPropertyW(package,name,path);
 323     }
 324     else
 325     {
 326         /* source may be in a few different places ... check each of them */
 327         path = NULL;
 328
 329         /* try the long path directory */
 330         if (f->SourceLongPath)
 331         {
 332             path = build_directory_name( 3, p, f->SourceLongPath, NULL );
 333             if (INVALID_FILE_ATTRIBUTES == GetFileAttributesW( path ))
 334             {
 335                 msi_free( path );
 336                 path = NULL;
 337             }
 338         }
 339
 340         /* try the short path directory */
 341         if (!path && f->SourceShortPath)
 342         {
 343             path = build_directory_name( 3, p, f->SourceShortPath, NULL );
 344             if (INVALID_FILE_ATTRIBUTES == GetFileAttributesW( path ))
 345             {
 346                 msi_free( path );
 347                 path = NULL;
 348             }
 349         }
 350
 351         /* try the root of the install */
 352         if (!path)
 353             path = get_source_root( package );
 354
 355         TRACE("source -> %s\n", debugstr_w(path));
 356         f->ResolvedSource = strdupW( path );
 357     }
 358     msi_free(p);
 359
 360     return path;
 361 }
 362
 363 /* wrapper to resist a need for a full rewrite right now */
 364 DWORD deformat_string(MSIPACKAGE *package, LPCWSTR ptr, WCHAR** data )
 365 {
 366     if (ptr)
 367     {
 368         MSIRECORD *rec = MSI_CreateRecord(1);
 369         DWORD size = 0;
 370
 371         MSI_RecordSetStringW(rec,0,ptr);
 372         MSI_FormatRecordW(package,rec,NULL,&size);
 373
 374         size++;
 375         *data = msi_alloc(size*sizeof(WCHAR));
 376         if (size > 1)
 377             MSI_FormatRecordW(package,rec,*data,&size);
 378         else
 379             *data[0] = 0;
 380
 381         msiobj_release( &rec->hdr );
 382         return sizeof(WCHAR)*size;
 383     }
 384
 385     *data = NULL;
 386     return 0;
 387 }
 388
 389 UINT schedule_action(MSIPACKAGE *package, UINT script, LPCWSTR action)
 390 {
 391     UINT count;
 392     LPWSTR *newbuf = NULL;
 393     if (script >= TOTAL_SCRIPTS)
 394     {
 395         FIXME("Unknown script requested %i\n",script);
 396         return ERROR_FUNCTION_FAILED;
 397     }
 398     TRACE("Scheduling Action %s in script %i\n",debugstr_w(action), script);
 399
 400     count = package->script->ActionCount[script];
 401     package->script->ActionCount[script]++;
 402     if (count != 0)
 403         newbuf = msi_realloc( package->script->Actions[script],
 404                         package->script->ActionCount[script]* sizeof(LPWSTR));
 405     else
 406         newbuf = msi_alloc( sizeof(LPWSTR));
 407
 408     newbuf[count] = strdupW(action);
 409     package->script->Actions[script] = newbuf;
 410
 411    return ERROR_SUCCESS;
 412 }
 413
 414 void msi_free_action_script(MSIPACKAGE *package, UINT script)
 415 {
 416     int i;
 417     for (i = 0; i < package->script->ActionCount[script]; i++)
 418         msi_free(package->script->Actions[script][i]);
 419
 420     msi_free(package->script->Actions[script]);
 421     package->script->Actions[script] = NULL;
 422     package->script->ActionCount[script] = 0;
 423 }
 424
 425 static void remove_tracked_tempfiles(MSIPACKAGE* package)
 426 {
 427     struct list *item, *cursor;
 428
 429     LIST_FOR_EACH_SAFE( item, cursor, &package->tempfiles )
 430     {
 431         MSITEMPFILE *temp = LIST_ENTRY( item, MSITEMPFILE, entry );
 432
 433         list_remove( &temp->entry );
 434         TRACE("deleting temp file %s\n", debugstr_w( temp->Path ));
 435         if (!DeleteFileW( temp->Path ))
 436             ERR("failed to delete %s\n", debugstr_w( temp->Path ));
 437         msi_free( temp->Path );
 438         msi_free( temp );
 439     }
 440 }
 441
 442 static void free_feature( MSIFEATURE *feature )
 443 {
 444     struct list *item, *cursor;
 445
 446     LIST_FOR_EACH_SAFE( item, cursor, &feature->Children )
 447     {
 448         FeatureList *fl = LIST_ENTRY( item, FeatureList, entry );
 449         list_remove( &fl->entry );
 450         msi_free( fl );
 451     }
 452
 453     LIST_FOR_EACH_SAFE( item, cursor, &feature->Components )
 454     {
 455         ComponentList *cl = LIST_ENTRY( item, ComponentList, entry );
 456         list_remove( &cl->entry );
 457         msi_free( cl );
 458     }
 459     msi_free( feature->Feature );
 460     msi_free( feature->Feature_Parent );
 461     msi_free( feature->Directory );
 462     msi_free( feature->Description );
 463     msi_free( feature->Title );
 464     msi_free( feature );
 465 }
 466
 467 static void free_extension( MSIEXTENSION *ext )
 468 {
 469     struct list *item, *cursor;
 470
 471     LIST_FOR_EACH_SAFE( item, cursor, &ext->verbs )
 472     {
 473         MSIVERB *verb = LIST_ENTRY( item, MSIVERB, entry );
 474
 475         list_remove( &verb->entry );
 476         msi_free( verb->Verb );
 477         msi_free( verb->Command );
 478         msi_free( verb->Argument );
 479         msi_free( verb );
 480     }
 481
 482     msi_free( ext->Extension );
 483     msi_free( ext->ProgIDText );
 484     msi_free( ext );
 485 }
 486
 487 /* Called when the package is being closed */
 488 void ACTION_free_package_structures( MSIPACKAGE* package)
 489 {
 490     INT i;
 491     struct list *item, *cursor;
 492
 493     TRACE("Freeing package action data\n");
 494
 495     remove_tracked_tempfiles(package);
 496
 497     LIST_FOR_EACH_SAFE( item, cursor, &package->features )
 498     {
 499         MSIFEATURE *feature = LIST_ENTRY( item, MSIFEATURE, entry );
 500         list_remove( &feature->entry );
 501         free_feature( feature );
 502     }
 503
 504     LIST_FOR_EACH_SAFE( item, cursor, &package->folders )
 505     {
 506         MSIFOLDER *folder = LIST_ENTRY( item, MSIFOLDER, entry );
 507
 508         list_remove( &folder->entry );
 509         msi_free( folder->Parent );
 510         msi_free( folder->Directory );
 511         msi_free( folder->TargetDefault );
 512         msi_free( folder->SourceLongPath );
 513         msi_free( folder->SourceShortPath );
 514         msi_free( folder->ResolvedTarget );
 515         msi_free( folder->ResolvedSource );
 516         msi_free( folder->Property );
 517         msi_free( folder );
 518     }
 519
 520     LIST_FOR_EACH_SAFE( item, cursor, &package->components )
 521     {
 522         MSICOMPONENT *comp = LIST_ENTRY( item, MSICOMPONENT, entry );
 523
 524         list_remove( &comp->entry );
 525         msi_free( comp->Component );
 526         msi_free( comp->ComponentId );
 527         msi_free( comp->Directory );
 528         msi_free( comp->Condition );
 529         msi_free( comp->KeyPath );
 530         msi_free( comp->FullKeypath );
 531         msi_free( comp );
 532     }
 533
 534     LIST_FOR_EACH_SAFE( item, cursor, &package->files )
 535     {
 536         MSIFILE *file = LIST_ENTRY( item, MSIFILE, entry );
 537
 538         list_remove( &file->entry );
 539         msi_free( file->File );
 540         msi_free( file->FileName );
 541         msi_free( file->ShortName );
 542         msi_free( file->LongName );
 543         msi_free( file->Version );
 544         msi_free( file->Language );
 545         msi_free( file->SourcePath );
 546         msi_free( file->TargetPath );
 547         msi_free( file );
 548     }
 549
 550     /* clean up extension, progid, class and verb structures */
 551     LIST_FOR_EACH_SAFE( item, cursor, &package->classes )
 552     {
 553         MSICLASS *cls = LIST_ENTRY( item, MSICLASS, entry );
 554
 555         list_remove( &cls->entry );
 556         msi_free( cls->clsid );
 557         msi_free( cls->Context );
 558         msi_free( cls->Description );
 559         msi_free( cls->FileTypeMask );
 560         msi_free( cls->IconPath );
 561         msi_free( cls->DefInprocHandler );
 562         msi_free( cls->DefInprocHandler32 );
 563         msi_free( cls->Argument );
 564         msi_free( cls->ProgIDText );
 565         msi_free( cls );
 566     }
 567
 568     LIST_FOR_EACH_SAFE( item, cursor, &package->extensions )
 569     {
 570         MSIEXTENSION *ext = LIST_ENTRY( item, MSIEXTENSION, entry );
 571
 572         list_remove( &ext->entry );
 573         free_extension( ext );
 574     }
 575
 576     LIST_FOR_EACH_SAFE( item, cursor, &package->progids )
 577     {
 578         MSIPROGID *progid = LIST_ENTRY( item, MSIPROGID, entry );
 579
 580         list_remove( &progid->entry );
 581         msi_free( progid->ProgID );
 582         msi_free( progid->Description );
 583         msi_free( progid->IconPath );
 584         msi_free( progid );
 585     }
 586
 587     LIST_FOR_EACH_SAFE( item, cursor, &package->mimes )
 588     {
 589         MSIMIME *mt = LIST_ENTRY( item, MSIMIME, entry );
 590
 591         list_remove( &mt->entry );
 592         msi_free( mt->clsid );
 593         msi_free( mt->ContentType );
 594         msi_free( mt );
 595     }
 596
 597     LIST_FOR_EACH_SAFE( item, cursor, &package->appids )
 598     {
 599         MSIAPPID *appid = LIST_ENTRY( item, MSIAPPID, entry );
 600
 601         list_remove( &appid->entry );
 602         msi_free( appid->AppID );
 603         msi_free( appid->RemoteServerName );
 604         msi_free( appid->LocalServer );
 605         msi_free( appid->ServiceParameters );
 606         msi_free( appid->DllSurrogate );
 607         msi_free( appid );
 608     }
 609
 610     LIST_FOR_EACH_SAFE( item, cursor, &package->sourcelist_info )
 611     {
 612         MSISOURCELISTINFO *info = LIST_ENTRY( item, MSISOURCELISTINFO, entry );
 613
 614         list_remove( &info->entry );
 615         msi_free( info->value );
 616         msi_free( info );
 617     }
 618
 619     LIST_FOR_EACH_SAFE( item, cursor, &package->sourcelist_media )
 620     {
 621         MSIMEDIADISK *info = LIST_ENTRY( item, MSIMEDIADISK, entry );
 622
 623         list_remove( &info->entry );
 624         msi_free( info->volume_label );
 625         msi_free( info->disk_prompt );
 626         msi_free( info );
 627     }
 628
 629     if (package->script)
 630     {
 631         for (i = 0; i < TOTAL_SCRIPTS; i++)
 632             msi_free_action_script(package, i);
 633
 634         for (i = 0; i < package->script->UniqueActionsCount; i++)
 635             msi_free(package->script->UniqueActions[i]);
 636
 637         msi_free(package->script->UniqueActions);
 638         msi_free(package->script);
 639     }
 640
 641     msi_free(package->BaseURL);
 642     msi_free(package->PackagePath);
 643     msi_free(package->ProductCode);
 644     msi_free(package->ActionFormat);
 645     msi_free(package->LastAction);
 646
 647     /* cleanup control event subscriptions */
 648     ControlEvent_CleanupSubscriptions(package);
 649 }
 650
 651 /*
 652  *  build_directory_name()
 653  *
 654  *  This function is to save messing round with directory names
 655  *  It handles adding backslashes between path segments,
 656  *   and can add \ at the end of the directory name if told to.
 657  *
 658  *  It takes a variable number of arguments.
 659  *  It always allocates a new string for the result, so make sure
 660  *   to free the return value when finished with it.
 661  *
 662  *  The first arg is the number of path segments that follow.
 663  *  The arguments following count are a list of path segments.
 664  *  A path segment may be NULL.
 665  *
 666  *  Path segments will be added with a \ separating them.
 667  *  A \ will not be added after the last segment, however if the
 668  *    last segment is NULL, then the last character will be a \
 669  *
 670  */
 671 LPWSTR build_directory_name(DWORD count, ...)
 672 {
 673     DWORD sz = 1, i;
 674     LPWSTR dir;
 675     va_list va;
 676
 677     va_start(va,count);
 678     for(i=0; i<count; i++)
 679     {
 680         LPCWSTR str = va_arg(va,LPCWSTR);
 681         if (str)
 682             sz += strlenW(str) + 1;
 683     }
 684     va_end(va);
 685
 686     dir = msi_alloc(sz*sizeof(WCHAR));
 687     dir[0]=0;
 688
 689     va_start(va,count);
 690     for(i=0; i<count; i++)
 691     {
 692         LPCWSTR str = va_arg(va,LPCWSTR);
 693         if (!str)
 694             continue;
 695         strcatW(dir, str);
 696         if( ((i+1)!=count) && dir[strlenW(dir)-1]!='\\')
 697             strcatW(dir, cszbs);
 698     }
 699     return dir;
 700 }
 701
 702 /***********************************************************************
 703  *            create_full_pathW
 704  *
 705  * Recursively create all directories in the path.
 706  *
 707  * shamelessly stolen from setupapi/queue.c
 708  */
 709 BOOL create_full_pathW(const WCHAR *path)
 710 {
 711     BOOL ret = TRUE;
 712     int len;
 713     WCHAR *new_path;
 714
 715     new_path = msi_alloc( (strlenW(path) + 1) * sizeof(WCHAR));
 716
 717     strcpyW(new_path, path);
 718
 719     while((len = strlenW(new_path)) && new_path[len - 1] == '\\')
 720     new_path[len - 1] = 0;
 721
 722     while(!CreateDirectoryW(new_path, NULL))
 723     {
 724         WCHAR *slash;
 725         DWORD last_error = GetLastError();
 726         if(last_error == ERROR_ALREADY_EXISTS)
 727             break;
 728
 729         if(last_error != ERROR_PATH_NOT_FOUND)
 730         {
 731             ret = FALSE;
 732             break;
 733         }
 734
 735         if(!(slash = strrchrW(new_path, '\\')))
 736         {
 737             ret = FALSE;
 738             break;
 739         }
 740
 741         len = slash - new_path;
 742         new_path[len] = 0;
 743         if(!create_full_pathW(new_path))
 744         {
 745             ret = FALSE;
 746             break;
 747         }
 748         new_path[len] = '\\';
 749     }
 750
 751     msi_free(new_path);
 752     return ret;
 753 }
 754
 755 void ui_progress(MSIPACKAGE *package, int a, int b, int c, int d )
 756 {
 757     MSIRECORD * row;
 758
 759     row = MSI_CreateRecord(4);
 760     MSI_RecordSetInteger(row,1,a);
 761     MSI_RecordSetInteger(row,2,b);
 762     MSI_RecordSetInteger(row,3,c);
 763     MSI_RecordSetInteger(row,4,d);
 764     MSI_ProcessMessage(package, INSTALLMESSAGE_PROGRESS, row);
 765     msiobj_release(&row->hdr);
 766
 767     msi_dialog_check_messages(NULL);
 768 }
 769
 770 void ui_actiondata(MSIPACKAGE *package, LPCWSTR action, MSIRECORD * record)
 771 {
 772     static const WCHAR Query_t[] =
 773         {'S','E','L','E','C','T',' ','*',' ','F','R','O','M',' ',
 774          '`','A','c','t','i','o', 'n','T','e','x','t','`',' ',
 775          'W','H','E','R','E',' ', '`','A','c','t','i','o','n','`',' ','=',
 776          ' ','\'','%','s','\'',0};
 777     WCHAR message[1024];
 778     MSIRECORD * row = 0;
 779     DWORD size;
 780
 781     if (!package->LastAction || strcmpW(package->LastAction,action))
 782     {
 783         row = MSI_QueryGetRecord(package->db, Query_t, action);
 784         if (!row)
 785             return;
 786
 787         if (MSI_RecordIsNull(row,3))
 788         {
 789             msiobj_release(&row->hdr);
 790             return;
 791         }
 792
 793         /* update the cached actionformat */
 794         msi_free(package->ActionFormat);
 795         package->ActionFormat = msi_dup_record_field(row,3);
 796
 797         msi_free(package->LastAction);
 798         package->LastAction = strdupW(action);
 799
 800         msiobj_release(&row->hdr);
 801     }
 802
 803     MSI_RecordSetStringW(record,0,package->ActionFormat);
 804     size = 1024;
 805     MSI_FormatRecordW(package,record,message,&size);
 806
 807     row = MSI_CreateRecord(1);
 808     MSI_RecordSetStringW(row,1,message);
 809
 810     MSI_ProcessMessage(package, INSTALLMESSAGE_ACTIONDATA, row);
 811
 812     msiobj_release(&row->hdr);
 813 }
 814
 815 BOOL ACTION_VerifyComponentForAction( const MSICOMPONENT* comp, INSTALLSTATE check )
 816 {
 817     if (!comp)
 818         return FALSE;
 819
 820     if (comp->Installed == check)
 821         return FALSE;
 822
 823     if (comp->ActionRequest == check)
 824         return TRUE;
 825     else
 826         return FALSE;
 827 }
 828
 829 BOOL ACTION_VerifyFeatureForAction( const MSIFEATURE* feature, INSTALLSTATE check )
 830 {
 831     if (!feature)
 832         return FALSE;
 833
 834     if (feature->ActionRequest == check)
 835         return TRUE;
 836     else
 837         return FALSE;
 838 }
 839
 840 void reduce_to_longfilename(WCHAR* filename)
 841 {
 842     LPWSTR p = strchrW(filename,'|');
 843     if (p)
 844         memmove(filename, p+1, (strlenW(p+1)+1)*sizeof(WCHAR));
 845 }
 846
 847 void reduce_to_shortfilename(WCHAR* filename)
 848 {
 849     LPWSTR p = strchrW(filename,'|');
 850     if (p)
 851         *p = 0;
 852 }
 853
 854 LPWSTR create_component_advertise_string(MSIPACKAGE* package,
 855                 MSICOMPONENT* component, LPCWSTR feature)
 856 {
 857     static const WCHAR fmt[] = {'%','s','%','s','%','c','%','s',0};
 858     WCHAR productid_85[21], component_85[21];
 859     LPWSTR output = NULL;
 860     DWORD sz = 0;
 861     GUID clsid;
 862
 863     /* > is used if there is a component GUID and < if not.  */
 864
 865     productid_85[0] = 0;
 866     component_85[0] = 0;
 867
 868     CLSIDFromString(package->ProductCode, &clsid);
 869     encode_base85_guid(&clsid, productid_85);
 870
 871     if (component)
 872     {
 873         CLSIDFromString(component->ComponentId, &clsid);
 874         encode_base85_guid(&clsid, component_85);
 875     }
 876
 877     TRACE("prod=%s feat=%s comp=%s\n", debugstr_w(productid_85),
 878           debugstr_w(feature), debugstr_w(component_85));
 879
 880     sz = 20 + lstrlenW(feature) + 20 + 3;
 881
 882     output = msi_alloc_zero(sz*sizeof(WCHAR));
 883
 884     sprintfW(output, fmt, productid_85, feature,
 885              component?'>':'<', component_85);
 886
 887     return output;
 888 }
 889
 890 /* update component state based on a feature change */
 891 void ACTION_UpdateComponentStates(MSIPACKAGE *package, LPCWSTR szFeature)
 892 {
 893     INSTALLSTATE newstate;
 894     MSIFEATURE *feature;
 895     ComponentList *cl;
 896
 897     feature = get_loaded_feature(package,szFeature);
 898     if (!feature)
 899         return;
 900
 901     newstate = feature->ActionRequest;
 902
 903     if (newstate == INSTALLSTATE_ABSENT)
 904         newstate = INSTALLSTATE_UNKNOWN;
 905
 906     LIST_FOR_EACH_ENTRY( cl, &feature->Components, ComponentList, entry )
 907     {
 908         MSICOMPONENT* component = cl->component;
 909
 910         TRACE("MODIFYING(%i): Component %s (Installed %i, Action %i, Request %i)\n",
 911             newstate, debugstr_w(component->Component), component->Installed,
 912             component->Action, component->ActionRequest);
 913
 914         if (!component->Enabled)
 915             continue;
 916
 917         if (newstate == INSTALLSTATE_LOCAL)
 918             msi_component_set_state( component, INSTALLSTATE_LOCAL );
 919         else
 920         {
 921             ComponentList *clist;
 922             MSIFEATURE *f;
 923
 924             component->hasLocalFeature = FALSE;
 925
 926             msi_component_set_state( component, newstate );
 927
 928             /*if any other feature wants is local we need to set it local*/
 929             LIST_FOR_EACH_ENTRY( f, &package->features, MSIFEATURE, entry )
 930             {
 931                 if ( f->ActionRequest != INSTALLSTATE_LOCAL &&
 932                      f->ActionRequest != INSTALLSTATE_SOURCE )
 933                 {
 934                     continue;
 935                 }
 936
 937                 LIST_FOR_EACH_ENTRY( clist, &f->Components, ComponentList, entry )
 938                 {
 939                     if ( clist->component == component &&
 940                          (f->ActionRequest == INSTALLSTATE_LOCAL ||
 941                           f->ActionRequest == INSTALLSTATE_SOURCE) )
 942                     {
 943                         TRACE("Saved by %s\n", debugstr_w(f->Feature));
 944                         component->hasLocalFeature = TRUE;
 945
 946                         if (component->Attributes & msidbComponentAttributesOptional)
 947                         {
 948                             if (f->Attributes & msidbFeatureAttributesFavorSource)
 949                                 msi_component_set_state( component, INSTALLSTATE_SOURCE );
 950                             else
 951                                 msi_component_set_state( component, INSTALLSTATE_LOCAL );
 952                         }
 953                         else if (component->Attributes & msidbComponentAttributesSourceOnly)
 954                             msi_component_set_state( component, INSTALLSTATE_SOURCE );
 955                         else
 956                             msi_component_set_state( component, INSTALLSTATE_LOCAL );
 957                     }
 958                 }
 959             }
 960         }
 961         TRACE("Result (%i): Component %s (Installed %i, Action %i, Request %i)\n",
 962             newstate, debugstr_w(component->Component), component->Installed,
 963             component->Action, component->ActionRequest);
 964     }
 965 }
 966
 967 UINT register_unique_action(MSIPACKAGE *package, LPCWSTR action)
 968 {
 969     UINT count;
 970     LPWSTR *newbuf = NULL;
 971
 972     if (!package->script)
 973         return FALSE;
 974
 975     TRACE("Registering Action %s as having fun\n",debugstr_w(action));
 976
 977     count = package->script->UniqueActionsCount;
 978     package->script->UniqueActionsCount++;
 979     if (count != 0)
 980         newbuf = msi_realloc( package->script->UniqueActions,
 981                         package->script->UniqueActionsCount* sizeof(LPWSTR));
 982     else
 983         newbuf = msi_alloc( sizeof(LPWSTR));
 984
 985     newbuf[count] = strdupW(action);
 986     package->script->UniqueActions = newbuf;
 987
 988     return ERROR_SUCCESS;
 989 }
 990
 991 BOOL check_unique_action(const MSIPACKAGE *package, LPCWSTR action)
 992 {
 993     INT i;
 994
 995     if (!package->script)
 996         return FALSE;
 997
 998     for (i = 0; i < package->script->UniqueActionsCount; i++)
 999         if (!strcmpW(package->script->UniqueActions[i],action))
1000             return TRUE;
1001
1002     return FALSE;
1003 }
1004
1005 WCHAR* generate_error_string(MSIPACKAGE *package, UINT error, DWORD count, ... )
1006 {
1007     static const WCHAR query[] = {'S','E','L','E','C','T',' ','`','M','e','s','s','a','g','e','`',' ','F','R','O','M',' ','`','E','r','r','o','r','`',' ','W','H','E','R','E',' ','`','E','r','r','o','r','`',' ','=',' ','%','i',0};
1008
1009     MSIRECORD *rec;
1010     MSIRECORD *row;
1011     DWORD size = 0;
1012     DWORD i;
1013     va_list va;
1014     LPCWSTR str;
1015     LPWSTR data;
1016
1017     row = MSI_QueryGetRecord(package->db, query, error);
1018     if (!row)
1019         return 0;
1020
1021     rec = MSI_CreateRecord(count+2);
1022
1023     str = MSI_RecordGetString(row,1);
1024     MSI_RecordSetStringW(rec,0,str);
1025     msiobj_release( &row->hdr );
1026     MSI_RecordSetInteger(rec,1,error);
1027
1028     va_start(va,count);
1029     for (i = 0; i < count; i++)
1030     {
1031         str = va_arg(va,LPCWSTR);
1032         MSI_RecordSetStringW(rec,(i+2),str);
1033     }
1034     va_end(va);
1035
1036     MSI_FormatRecordW(package,rec,NULL,&size);
1037
1038     size++;
1039     data = msi_alloc(size*sizeof(WCHAR));
1040     if (size > 1)
1041         MSI_FormatRecordW(package,rec,data,&size);
1042     else
1043         data[0] = 0;
1044     msiobj_release( &rec->hdr );
1045     return data;
1046 }
1047
1048 void msi_ui_error( DWORD msg_id, DWORD type )
1049 {
1050     WCHAR text[2048];
1051
1052     static const WCHAR title[] = {
1053         'W','i','n','d','o','w','s',' ','I','n','s','t','a','l','l','e','r',0
1054     };
1055
1056     if (!MsiLoadStringW( -1, msg_id, text, sizeof(text) / sizeof(text[0]),
1057                          MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL) ))
1058         return;
1059
1060     MessageBoxW( NULL, text, title, type );
1061 }
1062
1063 typedef struct
1064 {
1065     MSIPACKAGE *package;
1066     MSIMEDIAINFO *mi;
1067     MSIFILE *file;
1068     LPWSTR destination;
1069 } CabData;
1070
1071 static INT_PTR cabinet_notify(FDINOTIFICATIONTYPE fdint, PFDINOTIFICATION pfdin)
1072 {
1073     TRACE("(%d)\n", fdint);
1074
1075     switch (fdint)
1076     {
1077     case fdintNEXT_CABINET:
1078     {
1079         ERR("continuous cabinets not handled\n");
1080         return 0;
1081     }
1082
1083     case fdintCOPY_FILE:
1084     {
1085         CabData *data = (CabData*) pfdin->pv;
1086         LPWSTR file, path;
1087         DWORD attrs, size;
1088         HANDLE handle;
1089         MSIFILE *f;
1090
1091         file = strdupAtoW(pfdin->psz1);
1092         f = get_loaded_file(data->package, file);
1093         msi_free(file);
1094
1095         if (!f)
1096         {
1097             WARN("unknown file in cabinet (%s)\n",debugstr_a(pfdin->psz1));
1098             return 0;
1099         }
1100
1101         if (lstrcmpW(f->File, data->file->File))
1102             return 0;
1103
1104         size = lstrlenW(data->destination) + lstrlenW(data->file->FileName) + 2;
1105         path = msi_alloc(size * sizeof(WCHAR));
1106         lstrcpyW(path, data->destination);
1107         PathAddBackslashW(path);
1108         lstrcatW(path, data->file->FileName);
1109
1110         TRACE("extracting %s\n", debugstr_w(path));
1111
1112         attrs = f->Attributes & (FILE_ATTRIBUTE_READONLY|FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM);
1113         if (!attrs) attrs = FILE_ATTRIBUTE_NORMAL;
1114
1115         handle = CreateFileW(path, GENERIC_READ | GENERIC_WRITE, 0,
1116                              NULL, CREATE_ALWAYS, attrs, NULL);
1117         if (handle == INVALID_HANDLE_VALUE)
1118         {
1119             if (GetFileAttributesW(path) == INVALID_FILE_ATTRIBUTES)
1120                 ERR("failed to create %s (error %d)\n",
1121                     debugstr_w(path), GetLastError());
1122
1123             msi_free(path);
1124             return 0;
1125         }
1126
1127         msi_free(path);
1128         return (INT_PTR)handle;
1129     }
1130
1131     case fdintCLOSE_FILE_INFO:
1132     {
1133         FILETIME ft;
1134         FILETIME ftLocal;
1135         HANDLE handle = (HANDLE)pfdin->hf;
1136
1137         if (!DosDateTimeToFileTime(pfdin->date, pfdin->time, &ft))
1138             return -1;
1139         if (!LocalFileTimeToFileTime(&ft, &ftLocal))
1140             return -1;
1141         if (!SetFileTime(handle, &ftLocal, 0, &ftLocal))
1142             return -1;
1143         CloseHandle(handle);
1144         return 1;
1145     }
1146
1147     default:
1148         return 0;
1149     }
1150 }
1151
1152 UINT msi_extract_file(MSIPACKAGE *package, MSIFILE *file, LPWSTR destdir)
1153 {
1154     MSIMEDIAINFO *mi;
1155     CabData data;
1156     UINT r;
1157
1158     mi = msi_alloc_zero(sizeof(MSIMEDIAINFO));
1159     if (!mi)
1160         return ERROR_OUTOFMEMORY;
1161
1162     r = msi_load_media_info(package, file, mi);
1163     if (r != ERROR_SUCCESS)
1164         goto done;
1165
1166     data.package = package;
1167     data.mi = mi;
1168     data.file = file;
1169     data.destination = destdir;
1170
1171     if (!msi_cabextract(package, mi, cabinet_notify, &data))
1172     {
1173         ERR("Failed to extract cabinet file\n");
1174         r = ERROR_FUNCTION_FAILED;
1175     }
1176
1177 done:
1178     msi_free_media_info(mi);
1179     return r;
1180 }