reactos/lib/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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 /*
  22  * Here are helper functions formally in action.c that are used by a variaty 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 "wine/unicode.h"
  35 #include "action.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(msi);
  38
  39 static const WCHAR cszTargetDir[] = {'T','A','R','G','E','T','D','I','R',0};
  40 static const WCHAR cszDatabase[]={'D','A','T','A','B','A','S','E',0};
  41
  42 const WCHAR cszSourceDir[] = {'S','o','u','r','c','e','D','i','r',0};
  43 const WCHAR cszRootDrive[] = {'R','O','O','T','D','R','I','V','E',0};
  44 const WCHAR cszbs[]={'\\',0};
  45
  46 DWORD build_version_dword(LPCWSTR version_string)
  47 {
  48     SHORT major,minor;
  49     WORD build;
  50     DWORD rc = 0x00000000;
  51     LPCWSTR ptr1;
  52
  53     ptr1 = version_string;
  54
  55     if (!ptr1)
  56         return rc;
  57     else
  58         major = atoiW(ptr1);
  59
  60
  61     if(ptr1)
  62         ptr1 = strchrW(ptr1,'.');
  63     if (ptr1)
  64     {
  65         ptr1++;
  66         minor = atoiW(ptr1);
  67     }
  68     else
  69         minor = 0;
  70
  71     if (ptr1)
  72         ptr1 = strchrW(ptr1,'.');
  73
  74     if (ptr1)
  75     {
  76         ptr1++;
  77         build = atoiW(ptr1);
  78     }
  79     else
  80         build = 0;
  81
  82     rc = MAKELONG(build,MAKEWORD(minor,major));
  83     TRACE("%s -> 0x%lx\n",debugstr_w(version_string),rc);
  84     return rc;
  85 }
  86
  87 LPWSTR build_icon_path(MSIPACKAGE *package, LPCWSTR icon_name )
  88 {
  89     LPWSTR SystemFolder, dest, FilePath;
  90
  91     static const WCHAR szInstaller[] =
  92         {'M','i','c','r','o','s','o','f','t','\\',
  93          'I','n','s','t','a','l','l','e','r','\\',0};
  94     static const WCHAR szFolder[] =
  95         {'A','p','p','D','a','t','a','F','o','l','d','e','r',0};
  96
  97     SystemFolder = msi_dup_property( package, szFolder );
  98
  99     dest = build_directory_name(3, SystemFolder, szInstaller, package->ProductCode);
 100
 101     create_full_pathW(dest);
 102
 103     FilePath = build_directory_name(2, dest, icon_name);
 104
 105     msi_free(SystemFolder);
 106     msi_free(dest);
 107     return FilePath;
 108 }
 109
 110 LPWSTR msi_dup_record_field( MSIRECORD *row, INT index )
 111 {
 112     return strdupW( MSI_RecordGetString(row,index) );
 113 }
 114
 115 LPWSTR msi_dup_property(MSIPACKAGE *package, LPCWSTR prop)
 116 {
 117     DWORD sz = 0;
 118     LPWSTR str;
 119     UINT r;
 120
 121     r = MSI_GetPropertyW(package, prop, NULL, &sz);
 122     if (r != ERROR_SUCCESS && r != ERROR_MORE_DATA)
 123         return NULL;
 124
 125     sz++;
 126     str = msi_alloc(sz*sizeof(WCHAR));
 127     r = MSI_GetPropertyW(package, prop, str, &sz);
 128     if (r != ERROR_SUCCESS)
 129     {
 130         msi_free(str);
 131         str = NULL;
 132     }
 133     return str;
 134 }
 135
 136 MSICOMPONENT* get_loaded_component( MSIPACKAGE* package, LPCWSTR Component )
 137 {
 138     MSICOMPONENT *comp;
 139
 140     LIST_FOR_EACH_ENTRY( comp, &package->components, MSICOMPONENT, entry )
 141     {
 142         if (lstrcmpW(Component,comp->Component)==0)
 143             return comp;
 144     }
 145     return NULL;
 146 }
 147
 148 MSIFEATURE* get_loaded_feature(MSIPACKAGE* package, LPCWSTR Feature )
 149 {
 150     MSIFEATURE *feature;
 151
 152     LIST_FOR_EACH_ENTRY( feature, &package->features, MSIFEATURE, entry )
 153     {
 154         if (lstrcmpW( Feature, feature->Feature )==0)
 155             return feature;
 156     }
 157     return NULL;
 158 }
 159
 160 MSIFILE* get_loaded_file( MSIPACKAGE* package, LPCWSTR key )
 161 {
 162     MSIFILE *file;
 163
 164     LIST_FOR_EACH_ENTRY( file, &package->files, MSIFILE, entry )
 165     {
 166         if (lstrcmpW( key, file->File )==0)
 167             return file;
 168     }
 169     return NULL;
 170 }
 171
 172 int track_tempfile( MSIPACKAGE *package, LPCWSTR name, LPCWSTR path )
 173 {
 174     MSITEMPFILE *temp;
 175
 176     LIST_FOR_EACH_ENTRY( temp, &package->tempfiles, MSITEMPFILE, entry )
 177     {
 178         if (lstrcmpW( name, temp->File )==0)
 179         {
 180             TRACE("tempfile %s already exists with path %s\n",
 181                 debugstr_w(temp->File), debugstr_w(temp->Path));
 182             return -1;
 183         }
 184     }
 185
 186     temp = msi_alloc_zero( sizeof (MSITEMPFILE) );
 187     if (!temp)
 188         return -1;
 189
 190     list_add_head( &package->tempfiles, &temp->entry );
 191
 192     temp->File = strdupW( name );
 193     temp->Path = strdupW( path );
 194
 195     TRACE("adding tempfile %s with path %s\n",
 196            debugstr_w(temp->File), debugstr_w(temp->Path));
 197
 198     return 0;
 199 }
 200
 201 MSIFOLDER *get_loaded_folder( MSIPACKAGE *package, LPCWSTR dir )
 202 {
 203     MSIFOLDER *folder;
 204
 205     LIST_FOR_EACH_ENTRY( folder, &package->folders, MSIFOLDER, entry )
 206     {
 207         if (lstrcmpW( dir, folder->Directory )==0)
 208             return folder;
 209     }
 210     return NULL;
 211 }
 212
 213 LPWSTR resolve_folder(MSIPACKAGE *package, LPCWSTR name, BOOL source,
 214                       BOOL set_prop, MSIFOLDER **folder)
 215 {
 216     MSIFOLDER *f;
 217     LPWSTR p, path = NULL;
 218
 219     TRACE("Working to resolve %s\n",debugstr_w(name));
 220
 221     if (!name)
 222         return NULL;
 223
 224     /* special resolving for Target and Source root dir */
 225     if (strcmpW(name,cszTargetDir)==0 || strcmpW(name,cszSourceDir)==0)
 226     {
 227         if (!source)
 228         {
 229             LPWSTR check_path;
 230             check_path = msi_dup_property( package, cszTargetDir );
 231             if (!check_path)
 232             {
 233                 check_path = msi_dup_property( package, cszRootDrive );
 234                 if (set_prop)
 235                     MSI_SetPropertyW(package,cszTargetDir,check_path);
 236             }
 237
 238             /* correct misbuilt target dir */
 239             path = build_directory_name(2, check_path, NULL);
 240             if (strcmpiW(path,check_path)!=0)
 241                 MSI_SetPropertyW(package,cszTargetDir,path);
 242             msi_free(check_path);
 243         }
 244         else
 245         {
 246             path = msi_dup_property( package, cszSourceDir );
 247             if (!path)
 248             {
 249                 path = msi_dup_property( package, cszDatabase );
 250                 if (path)
 251                 {
 252                     p = strrchrW(path,'\\');
 253                     if (p)
 254                         *(p+1) = 0;
 255                 }
 256             }
 257         }
 258         if (folder)
 259             *folder = get_loaded_folder( package, name );
 260         return path;
 261     }
 262
 263     f = get_loaded_folder( package, name );
 264     if (!f)
 265         return NULL;
 266
 267     if (folder)
 268         *folder = f;
 269
 270     if (!source && f->ResolvedTarget)
 271     {
 272         path = strdupW( f->ResolvedTarget );
 273         TRACE("   already resolved to %s\n",debugstr_w(path));
 274         return path;
 275     }
 276     else if (source && f->ResolvedSource)
 277     {
 278         path = strdupW( f->ResolvedSource );
 279         TRACE("   (source)already resolved to %s\n",debugstr_w(path));
 280         return path;
 281     }
 282     else if (!source && f->Property)
 283     {
 284         path = build_directory_name( 2, f->Property, NULL );
 285
 286         TRACE("   internally set to %s\n",debugstr_w(path));
 287         if (set_prop)
 288             MSI_SetPropertyW( package, name, path );
 289         return path;
 290     }
 291
 292     if (f->Parent)
 293     {
 294         LPWSTR parent = f->Parent->Directory;
 295
 296         TRACE(" ! Parent is %s\n", debugstr_w(parent));
 297
 298         p = resolve_folder(package, parent, source, set_prop, NULL);
 299         if (!source)
 300         {
 301             TRACE("   TargetDefault = %s\n", debugstr_w(f->TargetDefault));
 302
 303             path = build_directory_name( 3, p, f->TargetDefault, NULL );
 304             f->ResolvedTarget = strdupW( path );
 305             TRACE("   resolved into %s\n",debugstr_w(path));
 306             if (set_prop)
 307                 MSI_SetPropertyW(package,name,path);
 308         }
 309         else
 310         {
 311             if (f->SourceDefault && f->SourceDefault[0]!='.')
 312                 path = build_directory_name( 3, p, f->SourceDefault, NULL );
 313             else
 314                 path = strdupW(p);
 315             TRACE("   (source)resolved into %s\n",debugstr_w(path));
 316             f->ResolvedSource = strdupW( path );
 317         }
 318         msi_free(p);
 319     }
 320     return path;
 321 }
 322
 323 /* wrapper to resist a need for a full rewrite right now */
 324 DWORD deformat_string(MSIPACKAGE *package, LPCWSTR ptr, WCHAR** data )
 325 {
 326     if (ptr)
 327     {
 328         MSIRECORD *rec = MSI_CreateRecord(1);
 329         DWORD size = 0;
 330
 331         MSI_RecordSetStringW(rec,0,ptr);
 332         MSI_FormatRecordW(package,rec,NULL,&size);
 333         if (size >= 0)
 334         {
 335             size++;
 336             *data = msi_alloc(size*sizeof(WCHAR));
 337             if (size > 1)
 338                 MSI_FormatRecordW(package,rec,*data,&size);
 339             else
 340                 *data[0] = 0;
 341             msiobj_release( &rec->hdr );
 342             return sizeof(WCHAR)*size;
 343         }
 344         msiobj_release( &rec->hdr );
 345     }
 346
 347     *data = NULL;
 348     return 0;
 349 }
 350
 351 UINT schedule_action(MSIPACKAGE *package, UINT script, LPCWSTR action)
 352 {
 353     UINT count;
 354     LPWSTR *newbuf = NULL;
 355     if (script >= TOTAL_SCRIPTS)
 356     {
 357         FIXME("Unknown script requested %i\n",script);
 358         return ERROR_FUNCTION_FAILED;
 359     }
 360     TRACE("Scheduling Action %s in script %i\n",debugstr_w(action), script);
 361
 362     count = package->script->ActionCount[script];
 363     package->script->ActionCount[script]++;
 364     if (count != 0)
 365         newbuf = msi_realloc( package->script->Actions[script],
 366                         package->script->ActionCount[script]* sizeof(LPWSTR));
 367     else
 368         newbuf = msi_alloc( sizeof(LPWSTR));
 369
 370     newbuf[count] = strdupW(action);
 371     package->script->Actions[script] = newbuf;
 372
 373    return ERROR_SUCCESS;
 374 }
 375
 376 static void remove_tracked_tempfiles(MSIPACKAGE* package)
 377 {
 378     struct list *item, *cursor;
 379
 380     LIST_FOR_EACH_SAFE( item, cursor, &package->tempfiles )
 381     {
 382         MSITEMPFILE *temp = LIST_ENTRY( item, MSITEMPFILE, entry );
 383
 384         list_remove( &temp->entry );
 385         TRACE("deleting temp file %s\n", debugstr_w( temp->Path ));
 386         DeleteFileW( temp->Path );
 387         msi_free( temp->File );
 388         msi_free( temp->Path );
 389         msi_free( temp );
 390     }
 391 }
 392
 393 static void free_feature( MSIFEATURE *feature )
 394 {
 395     struct list *item, *cursor;
 396
 397     LIST_FOR_EACH_SAFE( item, cursor, &feature->Components )
 398     {
 399         ComponentList *cl = LIST_ENTRY( item, ComponentList, entry );
 400         list_remove( &cl->entry );
 401         msi_free( cl );
 402     }
 403     msi_free( feature->Feature );
 404     msi_free( feature->Feature_Parent );
 405     msi_free( feature->Directory );
 406     msi_free( feature->Description );
 407     msi_free( feature->Title );
 408     msi_free( feature );
 409 }
 410
 411 void free_extension( MSIEXTENSION *ext )
 412 {
 413     struct list *item, *cursor;
 414
 415     LIST_FOR_EACH_SAFE( item, cursor, &ext->verbs )
 416     {
 417         MSIVERB *verb = LIST_ENTRY( item, MSIVERB, entry );
 418
 419         list_remove( &verb->entry );
 420         msi_free( verb->Verb );
 421         msi_free( verb->Command );
 422         msi_free( verb->Argument );
 423         msi_free( verb );
 424     }
 425
 426     msi_free( ext->Extension );
 427     msi_free( ext->ProgIDText );
 428     msi_free( ext );
 429 }
 430
 431 /* Called when the package is being closed */
 432 void ACTION_free_package_structures( MSIPACKAGE* package)
 433 {
 434     INT i;
 435     struct list *item, *cursor;
 436
 437     TRACE("Freeing package action data\n");
 438
 439     remove_tracked_tempfiles(package);
 440
 441     LIST_FOR_EACH_SAFE( item, cursor, &package->features )
 442     {
 443         MSIFEATURE *feature = LIST_ENTRY( item, MSIFEATURE, entry );
 444         list_remove( &feature->entry );
 445         free_feature( feature );
 446     }
 447
 448     LIST_FOR_EACH_SAFE( item, cursor, &package->folders )
 449     {
 450         MSIFOLDER *folder = LIST_ENTRY( item, MSIFOLDER, entry );
 451
 452         list_remove( &folder->entry );
 453         msi_free( folder->Directory );
 454         msi_free( folder->TargetDefault );
 455         msi_free( folder->SourceDefault );
 456         msi_free( folder->ResolvedTarget );
 457         msi_free( folder->ResolvedSource );
 458         msi_free( folder->Property );
 459         msi_free( folder );
 460     }
 461
 462     LIST_FOR_EACH_SAFE( item, cursor, &package->components )
 463     {
 464         MSICOMPONENT *comp = LIST_ENTRY( item, MSICOMPONENT, entry );
 465
 466         list_remove( &comp->entry );
 467         msi_free( comp->Component );
 468         msi_free( comp->ComponentId );
 469         msi_free( comp->Directory );
 470         msi_free( comp->Condition );
 471         msi_free( comp->KeyPath );
 472         msi_free( comp->FullKeypath );
 473         msi_free( comp );
 474     }
 475
 476     LIST_FOR_EACH_SAFE( item, cursor, &package->files )
 477     {
 478         MSIFILE *file = LIST_ENTRY( item, MSIFILE, entry );
 479
 480         list_remove( &file->entry );
 481         msi_free( file->File );
 482         msi_free( file->FileName );
 483         msi_free( file->ShortName );
 484         msi_free( file->Version );
 485         msi_free( file->Language );
 486         msi_free( file->SourcePath );
 487         msi_free( file->TargetPath );
 488         msi_free( file );
 489     }
 490
 491     /* clean up extension, progid, class and verb structures */
 492     LIST_FOR_EACH_SAFE( item, cursor, &package->classes )
 493     {
 494         MSICLASS *cls = LIST_ENTRY( item, MSICLASS, entry );
 495
 496         list_remove( &cls->entry );
 497         msi_free( cls->clsid );
 498         msi_free( cls->Context );
 499         msi_free( cls->Description );
 500         msi_free( cls->FileTypeMask );
 501         msi_free( cls->IconPath );
 502         msi_free( cls->DefInprocHandler );
 503         msi_free( cls->DefInprocHandler32 );
 504         msi_free( cls->Argument );
 505         msi_free( cls->ProgIDText );
 506         msi_free( cls );
 507     }
 508
 509     LIST_FOR_EACH_SAFE( item, cursor, &package->extensions )
 510     {
 511         MSIEXTENSION *ext = LIST_ENTRY( item, MSIEXTENSION, entry );
 512
 513         list_remove( &ext->entry );
 514         free_extension( ext );
 515     }
 516
 517     LIST_FOR_EACH_SAFE( item, cursor, &package->progids )
 518     {
 519         MSIPROGID *progid = LIST_ENTRY( item, MSIPROGID, entry );
 520
 521         list_remove( &progid->entry );
 522         msi_free( progid->ProgID );
 523         msi_free( progid->Description );
 524         msi_free( progid->IconPath );
 525         msi_free( progid );
 526     }
 527
 528     LIST_FOR_EACH_SAFE( item, cursor, &package->mimes )
 529     {
 530         MSIMIME *mt = LIST_ENTRY( item, MSIMIME, entry );
 531
 532         list_remove( &mt->entry );
 533         msi_free( mt->clsid );
 534         msi_free( mt->ContentType );
 535         msi_free( mt );
 536     }
 537
 538     LIST_FOR_EACH_SAFE( item, cursor, &package->appids )
 539     {
 540         MSIAPPID *appid = LIST_ENTRY( item, MSIAPPID, entry );
 541
 542         list_remove( &appid->entry );
 543         msi_free( appid->AppID );
 544         msi_free( appid->RemoteServerName );
 545         msi_free( appid->LocalServer );
 546         msi_free( appid->ServiceParameters );
 547         msi_free( appid->DllSurrogate );
 548         msi_free( appid );
 549     }
 550
 551     if (package->script)
 552     {
 553         for (i = 0; i < TOTAL_SCRIPTS; i++)
 554         {
 555             int j;
 556             for (j = 0; j < package->script->ActionCount[i]; j++)
 557                 msi_free(package->script->Actions[i][j]);
 558
 559             msi_free(package->script->Actions[i]);
 560         }
 561
 562         for (i = 0; i < package->script->UniqueActionsCount; i++)
 563             msi_free(package->script->UniqueActions[i]);
 564
 565         msi_free(package->script->UniqueActions);
 566         msi_free(package->script);
 567     }
 568
 569     msi_free(package->PackagePath);
 570     msi_free(package->ProductCode);
 571     msi_free(package->ActionFormat);
 572     msi_free(package->LastAction);
 573
 574     /* cleanup control event subscriptions */
 575     ControlEvent_CleanupSubscriptions(package);
 576 }
 577
 578 /*
 579  *  build_directory_name()
 580  *
 581  *  This function is to save messing round with directory names
 582  *  It handles adding backslashes between path segments,
 583  *   and can add \ at the end of the directory name if told to.
 584  *
 585  *  It takes a variable number of arguments.
 586  *  It always allocates a new string for the result, so make sure
 587  *   to free the return value when finished with it.
 588  *
 589  *  The first arg is the number of path segments that follow.
 590  *  The arguments following count are a list of path segments.
 591  *  A path segment may be NULL.
 592  *
 593  *  Path segments will be added with a \ separating them.
 594  *  A \ will not be added after the last segment, however if the
 595  *    last segment is NULL, then the last character will be a \
 596  *
 597  */
 598 LPWSTR build_directory_name(DWORD count, ...)
 599 {
 600     DWORD sz = 1, i;
 601     LPWSTR dir;
 602     va_list va;
 603
 604     va_start(va,count);
 605     for(i=0; i<count; i++)
 606     {
 607         LPCWSTR str = va_arg(va,LPCWSTR);
 608         if (str)
 609             sz += strlenW(str) + 1;
 610     }
 611     va_end(va);
 612
 613     dir = msi_alloc(sz*sizeof(WCHAR));
 614     dir[0]=0;
 615
 616     va_start(va,count);
 617     for(i=0; i<count; i++)
 618     {
 619         LPCWSTR str = va_arg(va,LPCWSTR);
 620         if (!str)
 621             continue;
 622         strcatW(dir, str);
 623         if( ((i+1)!=count) && dir[strlenW(dir)-1]!='\\')
 624             strcatW(dir, cszbs);
 625     }
 626     return dir;
 627 }
 628
 629 /***********************************************************************
 630  *            create_full_pathW
 631  *
 632  * Recursively create all directories in the path.
 633  *
 634  * shamelessly stolen from setupapi/queue.c
 635  */
 636 BOOL create_full_pathW(const WCHAR *path)
 637 {
 638     BOOL ret = TRUE;
 639     int len;
 640     WCHAR *new_path;
 641
 642     new_path = msi_alloc( (strlenW(path) + 1) * sizeof(WCHAR));
 643
 644     strcpyW(new_path, path);
 645
 646     while((len = strlenW(new_path)) && new_path[len - 1] == '\\')
 647     new_path[len - 1] = 0;
 648
 649     while(!CreateDirectoryW(new_path, NULL))
 650     {
 651         WCHAR *slash;
 652         DWORD last_error = GetLastError();
 653         if(last_error == ERROR_ALREADY_EXISTS)
 654             break;
 655
 656         if(last_error != ERROR_PATH_NOT_FOUND)
 657         {
 658             ret = FALSE;
 659             break;
 660         }
 661
 662         if(!(slash = strrchrW(new_path, '\\')))
 663         {
 664             ret = FALSE;
 665             break;
 666         }
 667
 668         len = slash - new_path;
 669         new_path[len] = 0;
 670         if(!create_full_pathW(new_path))
 671         {
 672             ret = FALSE;
 673             break;
 674         }
 675         new_path[len] = '\\';
 676     }
 677
 678     msi_free(new_path);
 679     return ret;
 680 }
 681
 682 void ui_progress(MSIPACKAGE *package, int a, int b, int c, int d )
 683 {
 684     MSIRECORD * row;
 685
 686     row = MSI_CreateRecord(4);
 687     MSI_RecordSetInteger(row,1,a);
 688     MSI_RecordSetInteger(row,2,b);
 689     MSI_RecordSetInteger(row,3,c);
 690     MSI_RecordSetInteger(row,4,d);
 691     MSI_ProcessMessage(package, INSTALLMESSAGE_PROGRESS, row);
 692     msiobj_release(&row->hdr);
 693
 694     msi_dialog_check_messages(NULL);
 695 }
 696
 697 void ui_actiondata(MSIPACKAGE *package, LPCWSTR action, MSIRECORD * record)
 698 {
 699     static const WCHAR Query_t[] =
 700         {'S','E','L','E','C','T',' ','*',' ','F','R','O','M',' ',
 701          '`','A','c','t','i','o', 'n','T','e','x','t','`',' ',
 702          'W','H','E','R','E',' ', '`','A','c','t','i','o','n','`',' ','=',
 703          ' ','\'','%','s','\'',0};
 704     WCHAR message[1024];
 705     MSIRECORD * row = 0;
 706     DWORD size;
 707     static const WCHAR szActionData[] =
 708         {'A','c','t','i','o','n','D','a','t','a',0};
 709
 710     if (!package->LastAction || strcmpW(package->LastAction,action))
 711     {
 712         row = MSI_QueryGetRecord(package->db, Query_t, action);
 713         if (!row)
 714             return;
 715
 716         if (MSI_RecordIsNull(row,3))
 717         {
 718             msiobj_release(&row->hdr);
 719             return;
 720         }
 721
 722         /* update the cached actionformat */
 723         msi_free(package->ActionFormat);
 724         package->ActionFormat = msi_dup_record_field(row,3);
 725
 726         msi_free(package->LastAction);
 727         package->LastAction = strdupW(action);
 728
 729         msiobj_release(&row->hdr);
 730     }
 731
 732     MSI_RecordSetStringW(record,0,package->ActionFormat);
 733     size = 1024;
 734     MSI_FormatRecordW(package,record,message,&size);
 735
 736     row = MSI_CreateRecord(1);
 737     MSI_RecordSetStringW(row,1,message);
 738
 739     MSI_ProcessMessage(package, INSTALLMESSAGE_ACTIONDATA, row);
 740
 741     ControlEvent_FireSubscribedEvent(package,szActionData, row);
 742
 743     msiobj_release(&row->hdr);
 744 }
 745
 746 BOOL ACTION_VerifyComponentForAction( MSICOMPONENT* comp, INSTALLSTATE check )
 747 {
 748     if (!comp)
 749         return FALSE;
 750
 751     if (comp->Installed == check)
 752         return FALSE;
 753
 754     if (comp->ActionRequest == check)
 755         return TRUE;
 756     else
 757         return FALSE;
 758 }
 759
 760 BOOL ACTION_VerifyFeatureForAction( MSIFEATURE* feature, INSTALLSTATE check )
 761 {
 762     if (!feature)
 763         return FALSE;
 764
 765     if (feature->Installed == check)
 766         return FALSE;
 767
 768     if (feature->ActionRequest == check)
 769         return TRUE;
 770     else
 771         return FALSE;
 772 }
 773
 774 void reduce_to_longfilename(WCHAR* filename)
 775 {
 776     LPWSTR p = strchrW(filename,'|');
 777     if (p)
 778         memmove(filename, p+1, (strlenW(p+1)+1)*sizeof(WCHAR));
 779 }
 780
 781 void reduce_to_shortfilename(WCHAR* filename)
 782 {
 783     LPWSTR p = strchrW(filename,'|');
 784     if (p)
 785         *p = 0;
 786 }
 787
 788 LPWSTR create_component_advertise_string(MSIPACKAGE* package,
 789                 MSICOMPONENT* component, LPCWSTR feature)
 790 {
 791     GUID clsid;
 792     WCHAR productid_85[21];
 793     WCHAR component_85[21];
 794     /*
 795      * I have a fair bit of confusion as to when a < is used and when a > is
 796      * used. I do not think i have it right...
 797      *
 798      * Ok it appears that the > is used if there is a guid for the compoenent
 799      * and the < is used if not.
 800      */
 801     static WCHAR fmt1[] = {'%','s','%','s','<',0,0};
 802     static WCHAR fmt2[] = {'%','s','%','s','>','%','s',0,0};
 803     LPWSTR output = NULL;
 804     DWORD sz = 0;
 805
 806     memset(productid_85,0,sizeof(productid_85));
 807     memset(component_85,0,sizeof(component_85));
 808
 809     CLSIDFromString(package->ProductCode, &clsid);
 810
 811     encode_base85_guid(&clsid,productid_85);
 812
 813     CLSIDFromString(component->ComponentId, &clsid);
 814     encode_base85_guid(&clsid,component_85);
 815
 816     TRACE("Doing something with this... %s %s %s\n",
 817             debugstr_w(productid_85), debugstr_w(feature),
 818             debugstr_w(component_85));
 819
 820     sz = lstrlenW(productid_85) + lstrlenW(feature);
 821     if (component)
 822         sz += lstrlenW(component_85);
 823
 824     sz+=3;
 825     sz *= sizeof(WCHAR);
 826
 827     output = msi_alloc(sz);
 828     memset(output,0,sz);
 829
 830     if (component)
 831         sprintfW(output,fmt2,productid_85,feature,component_85);
 832     else
 833         sprintfW(output,fmt1,productid_85,feature);
 834
 835     return output;
 836 }
 837
 838 /* update compoennt state based on a feature change */
 839 void ACTION_UpdateComponentStates(MSIPACKAGE *package, LPCWSTR szFeature)
 840 {
 841     INSTALLSTATE newstate;
 842     MSIFEATURE *feature;
 843     ComponentList *cl;
 844
 845     feature = get_loaded_feature(package,szFeature);
 846     if (!feature)
 847         return;
 848
 849     newstate = feature->ActionRequest;
 850
 851     LIST_FOR_EACH_ENTRY( cl, &feature->Components, ComponentList, entry )
 852     {
 853         MSICOMPONENT* component = cl->component;
 854
 855         TRACE("MODIFYING(%i): Component %s (Installed %i, Action %i, Request %i)\n",
 856             newstate, debugstr_w(component->Component), component->Installed,
 857             component->Action, component->ActionRequest);
 858
 859         if (!component->Enabled)
 860             continue;
 861
 862         if (newstate == INSTALLSTATE_LOCAL)
 863         {
 864             component->ActionRequest = INSTALLSTATE_LOCAL;
 865             component->Action = INSTALLSTATE_LOCAL;
 866         }
 867         else
 868         {
 869             ComponentList *clist;
 870             MSIFEATURE *f;
 871
 872             component->ActionRequest = newstate;
 873             component->Action = newstate;
 874
 875             /*if any other feature wants is local we need to set it local*/
 876             LIST_FOR_EACH_ENTRY( f, &package->features, MSIFEATURE, entry )
 877             {
 878                 if ( component->ActionRequest != INSTALLSTATE_LOCAL )
 879                     break;
 880
 881                 LIST_FOR_EACH_ENTRY( clist, &f->Components, ComponentList, entry )
 882                 {
 883                     if ( clist->component == component )
 884                     {
 885                         if (f->ActionRequest == INSTALLSTATE_LOCAL)
 886                         {
 887                             TRACE("Saved by %s\n", debugstr_w(f->Feature));
 888                             component->ActionRequest = INSTALLSTATE_LOCAL;
 889                             component->Action = INSTALLSTATE_LOCAL;
 890                         }
 891                         break;
 892                     }
 893                 }
 894             }
 895         }
 896         TRACE("Result (%i): Component %s (Installed %i, Action %i, Request %i)\n",
 897             newstate, debugstr_w(component->Component), component->Installed,
 898             component->Action, component->ActionRequest);
 899     }
 900 }
 901
 902 UINT register_unique_action(MSIPACKAGE *package, LPCWSTR action)
 903 {
 904     UINT count;
 905     LPWSTR *newbuf = NULL;
 906
 907     if (!package->script)
 908         return FALSE;
 909
 910     TRACE("Registering Action %s as having fun\n",debugstr_w(action));
 911
 912     count = package->script->UniqueActionsCount;
 913     package->script->UniqueActionsCount++;
 914     if (count != 0)
 915         newbuf = msi_realloc( package->script->UniqueActions,
 916                         package->script->UniqueActionsCount* sizeof(LPWSTR));
 917     else
 918         newbuf = msi_alloc( sizeof(LPWSTR));
 919
 920     newbuf[count] = strdupW(action);
 921     package->script->UniqueActions = newbuf;
 922
 923     return ERROR_SUCCESS;
 924 }
 925
 926 BOOL check_unique_action(MSIPACKAGE *package, LPCWSTR action)
 927 {
 928     INT i;
 929
 930     if (!package->script)
 931         return FALSE;
 932
 933     for (i = 0; i < package->script->UniqueActionsCount; i++)
 934         if (!strcmpW(package->script->UniqueActions[i],action))
 935             return TRUE;
 936
 937     return FALSE;
 938 }
 939
 940 WCHAR* generate_error_string(MSIPACKAGE *package, UINT error, DWORD count, ... )
 941 {
 942     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};
 943
 944     MSIRECORD *rec;
 945     MSIRECORD *row;
 946     DWORD size = 0;
 947     DWORD i;
 948     va_list va;
 949     LPCWSTR str;
 950     LPWSTR data;
 951
 952     row = MSI_QueryGetRecord(package->db, query, error);
 953     if (!row)
 954         return 0;
 955
 956     rec = MSI_CreateRecord(count+2);
 957
 958     str = MSI_RecordGetString(row,1);
 959     MSI_RecordSetStringW(rec,0,str);
 960     msiobj_release( &row->hdr );
 961     MSI_RecordSetInteger(rec,1,error);
 962
 963     va_start(va,count);
 964     for (i = 0; i < count; i++)
 965     {
 966         str = va_arg(va,LPCWSTR);
 967         MSI_RecordSetStringW(rec,(i+2),str);
 968     }
 969     va_end(va);
 970
 971     MSI_FormatRecordW(package,rec,NULL,&size);
 972     if (size >= 0)
 973     {
 974         size++;
 975         data = msi_alloc(size*sizeof(WCHAR));
 976         if (size > 1)
 977             MSI_FormatRecordW(package,rec,data,&size);
 978         else
 979             data[0] = 0;
 980         msiobj_release( &rec->hdr );
 981         return data;
 982     }
 983
 984     msiobj_release( &rec->hdr );
 985     data = NULL;
 986     return data;
 987 }