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