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 "wine/debug.h"
  30 #include "msipriv.h"
  31 #include "winuser.h"
  32 #include "wine/unicode.h"
  33 #include "msidefs.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(msi);
  36
  37 static const WCHAR cszTargetDir[] = {'T','A','R','G','E','T','D','I','R',0};
  38 static const WCHAR cszDatabase[]={'D','A','T','A','B','A','S','E',0};
  39
  40 LPWSTR build_icon_path(MSIPACKAGE *package, LPCWSTR icon_name )
  41 {
  42     LPWSTR SystemFolder, dest, FilePath;
  43
  44     static const WCHAR szMicrosoft[] =
  45         {'M','i','c','r','o','s','o','f','t','\\',0};
  46     static const WCHAR szInstaller[] =
  47         {'I','n','s','t','a','l','l','e','r','\\',0};
  48     static const WCHAR szADFolder[] =
  49         {'A','p','p','D','a','t','a','F','o','l','d','e','r',0};
  50     static const WCHAR szWFolder[] =
  51         {'W','i','n','d','o','w','s','F','o','l','d','e','r',0};
  52
  53     if(package->Context == MSIINSTALLCONTEXT_MACHINE)
  54         SystemFolder = msi_dup_property( package->db, szWFolder );
  55     else
  56     {
  57         LPWSTR ADTgt = msi_dup_property( package->db, szADFolder );
  58         SystemFolder = build_directory_name(2, ADTgt, szMicrosoft);
  59         msi_free(ADTgt);
  60     }
  61
  62     dest = build_directory_name(3, SystemFolder, szInstaller, package->ProductCode);
  63
  64     create_full_pathW(dest);
  65
  66     FilePath = build_directory_name(2, dest, icon_name);
  67
  68     msi_free(SystemFolder);
  69     msi_free(dest);
  70     return FilePath;
  71 }
  72
  73 LPWSTR msi_dup_record_field( MSIRECORD *rec, INT field )
  74 {
  75     DWORD sz = 0;
  76     LPWSTR str;
  77     UINT r;
  78
  79     if (MSI_RecordIsNull( rec, field ))
  80         return NULL;
  81
  82     r = MSI_RecordGetStringW( rec, field, NULL, &sz );
  83     if (r != ERROR_SUCCESS)
  84         return NULL;
  85
  86     sz ++;
  87     str = msi_alloc( sz * sizeof (WCHAR) );
  88     if (!str)
  89         return str;
  90     str[0] = 0;
  91     r = MSI_RecordGetStringW( rec, field, str, &sz );
  92     if (r != ERROR_SUCCESS)
  93     {
  94         ERR("failed to get string!\n");
  95         msi_free( str );
  96         return NULL;
  97     }
  98     return str;
  99 }
 100
 101 MSICOMPONENT* get_loaded_component( MSIPACKAGE* package, LPCWSTR Component )
 102 {
 103     MSICOMPONENT *comp;
 104
 105     LIST_FOR_EACH_ENTRY( comp, &package->components, MSICOMPONENT, entry )
 106     {
 107         if (!strcmpW( Component, comp->Component ))
 108             return comp;
 109     }
 110     return NULL;
 111 }
 112
 113 MSIFEATURE* get_loaded_feature(MSIPACKAGE* package, LPCWSTR Feature )
 114 {
 115     MSIFEATURE *feature;
 116
 117     LIST_FOR_EACH_ENTRY( feature, &package->features, MSIFEATURE, entry )
 118     {
 119         if (!strcmpW( Feature, feature->Feature ))
 120             return feature;
 121     }
 122     return NULL;
 123 }
 124
 125 MSIFILE* get_loaded_file( MSIPACKAGE* package, LPCWSTR key )
 126 {
 127     MSIFILE *file;
 128
 129     LIST_FOR_EACH_ENTRY( file, &package->files, MSIFILE, entry )
 130     {
 131         if (!strcmpW( key, file->File ))
 132             return file;
 133     }
 134     return NULL;
 135 }
 136
 137 int track_tempfile( MSIPACKAGE *package, LPCWSTR path )
 138 {
 139     MSITEMPFILE *temp;
 140
 141     TRACE("%s\n", debugstr_w(path));
 142
 143     LIST_FOR_EACH_ENTRY( temp, &package->tempfiles, MSITEMPFILE, entry )
 144         if (!strcmpW( path, temp->Path ))
 145             return 0;
 146
 147     temp = msi_alloc_zero( sizeof (MSITEMPFILE) );
 148     if (!temp)
 149         return -1;
 150
 151     list_add_head( &package->tempfiles, &temp->entry );
 152     temp->Path = strdupW( path );
 153
 154     return 0;
 155 }
 156
 157 MSIFOLDER *get_loaded_folder( MSIPACKAGE *package, LPCWSTR dir )
 158 {
 159     MSIFOLDER *folder;
 160
 161     LIST_FOR_EACH_ENTRY( folder, &package->folders, MSIFOLDER, entry )
 162     {
 163         if (!strcmpW( dir, folder->Directory ))
 164             return folder;
 165     }
 166     return NULL;
 167 }
 168
 169 static LPWSTR get_source_root( MSIPACKAGE *package )
 170 {
 171     LPWSTR path, p;
 172
 173     path = msi_dup_property( package->db, cszSourceDir );
 174     if (path)
 175         return path;
 176
 177     path = msi_dup_property( package->db, cszDatabase );
 178     if (path)
 179     {
 180         p = strrchrW(path,'\\');
 181         if (p)
 182             *(p+1) = 0;
 183     }
 184     return path;
 185 }
 186
 187 /*
 188  * clean_spaces_from_path()
 189  *
 190  * removes spaces from the beginning and end of path segments
 191  * removes multiple \\ characters
 192  */
 193 static void clean_spaces_from_path( LPWSTR p )
 194 {
 195     LPWSTR q = p;
 196     int n, len = 0;
 197
 198     while (1)
 199     {
 200         /* copy until the end of the string or a space */
 201         while (*p != ' ' && (*q = *p))
 202         {
 203             p++, len++;
 204             /* reduce many backslashes to one */
 205             if (*p != '\\' || *q != '\\')
 206                 q++;
 207         }
 208
 209         /* quit at the end of the string */
 210         if (!*p)
 211             break;
 212
 213         /* count the number of spaces */
 214         n = 0;
 215         while (p[n] == ' ')
 216             n++;
 217
 218         /* if it's leading or trailing space, skip it */
 219         if ( len == 0 || p[-1] == '\\' || p[n] == '\\' )
 220             p += n;
 221         else  /* copy n spaces */
 222             while (n && (*q++ = *p++)) n--;
 223     }
 224 }
 225
 226 LPWSTR resolve_file_source(MSIPACKAGE *package, MSIFILE *file)
 227 {
 228     LPWSTR p, path;
 229
 230     TRACE("Working to resolve source of file %s\n", debugstr_w(file->File));
 231
 232     if (file->IsCompressed)
 233         return NULL;
 234
 235     p = resolve_source_folder( package, file->Component->Directory, NULL );
 236     path = build_directory_name(2, p, file->ShortName);
 237
 238     if (file->LongName &&
 239         GetFileAttributesW(path) == INVALID_FILE_ATTRIBUTES)
 240     {
 241         msi_free(path);
 242         path = build_directory_name(2, p, file->LongName);
 243     }
 244
 245     msi_free(p);
 246
 247     TRACE("file %s source resolves to %s\n", debugstr_w(file->File), debugstr_w(path));
 248     return path;
 249 }
 250
 251 LPWSTR resolve_source_folder( MSIPACKAGE *package, LPCWSTR name, MSIFOLDER **folder )
 252 {
 253     MSIFOLDER *f;
 254     LPWSTR p, path = NULL, parent;
 255
 256     TRACE("working to resolve %s\n", debugstr_w(name));
 257
 258     if (!strcmpW( name, cszSourceDir ))
 259         name = cszTargetDir;
 260
 261     f = get_loaded_folder( package, name );
 262     if (!f)
 263         return NULL;
 264
 265     /* special resolving for Target and Source root dir */
 266     if (!strcmpW( name, cszTargetDir ))
 267     {
 268         if (!f->ResolvedSource)
 269             f->ResolvedSource = get_source_root( package );
 270     }
 271
 272     if (folder)
 273         *folder = f;
 274
 275     if (f->ResolvedSource)
 276     {
 277         path = strdupW( f->ResolvedSource );
 278         TRACE("   already resolved to %s\n", debugstr_w(path));
 279         return path;
 280     }
 281
 282     if (!f->Parent)
 283         return path;
 284
 285     parent = f->Parent;
 286     TRACE(" ! parent is %s\n", debugstr_w(parent));
 287
 288     p = resolve_source_folder( package, parent, NULL );
 289
 290     if (package->WordCount & msidbSumInfoSourceTypeCompressed)
 291         path = get_source_root( package );
 292     else if (package->WordCount & msidbSumInfoSourceTypeSFN)
 293         path = build_directory_name( 3, p, f->SourceShortPath, NULL );
 294     else
 295         path = build_directory_name( 3, p, f->SourceLongPath, NULL );
 296
 297     TRACE("-> %s\n", debugstr_w(path));
 298     f->ResolvedSource = strdupW( path );
 299     msi_free( p );
 300
 301     return path;
 302 }
 303
 304 LPWSTR resolve_target_folder( MSIPACKAGE *package, LPCWSTR name, BOOL set_prop, BOOL load_prop,
 305                               MSIFOLDER **folder )
 306 {
 307     MSIFOLDER *f;
 308     LPWSTR p, path = NULL, parent;
 309
 310     TRACE("working to resolve %s\n", debugstr_w(name));
 311
 312     f = get_loaded_folder( package, name );
 313     if (!f)
 314         return NULL;
 315
 316     /* special resolving for Target and Source root dir */
 317     if (!strcmpW( name, cszTargetDir ))
 318     {
 319         if (!f->ResolvedTarget && !f->Property)
 320         {
 321             LPWSTR check_path;
 322             check_path = msi_dup_property( package->db, cszTargetDir );
 323             if (!check_path)
 324             {
 325                 check_path = msi_dup_property( package->db, cszRootDrive );
 326                 if (set_prop)
 327                     msi_set_property( package->db, cszTargetDir, check_path );
 328             }
 329
 330             /* correct misbuilt target dir */
 331             path = build_directory_name(2, check_path, NULL);
 332             clean_spaces_from_path( path );
 333             if (strcmpiW( path, check_path ))
 334                 msi_set_property( package->db, cszTargetDir, path );
 335             msi_free(check_path);
 336
 337             f->ResolvedTarget = path;
 338         }
 339     }
 340
 341     if (folder)
 342         *folder = f;
 343
 344     if (f->ResolvedTarget)
 345     {
 346         path = strdupW( f->ResolvedTarget );
 347         TRACE("   already resolved to %s\n", debugstr_w(path));
 348         return path;
 349     }
 350
 351     if (f->Property)
 352     {
 353         path = build_directory_name( 2, f->Property, NULL );
 354         TRACE("   internally set to %s\n", debugstr_w(path));
 355         if (set_prop) msi_set_property( package->db, name, path );
 356         return path;
 357     }
 358
 359     if (load_prop && (path = msi_dup_property( package->db, name )))
 360     {
 361         f->ResolvedTarget = strdupW( path );
 362         TRACE("   property set to %s\n", debugstr_w(path));
 363         return path;
 364     }
 365
 366     if (!f->Parent)
 367         return path;
 368
 369     parent = f->Parent;
 370
 371     TRACE(" ! parent is %s\n", debugstr_w(parent));
 372
 373     p = resolve_target_folder( package, parent, set_prop, load_prop, NULL );
 374
 375     TRACE("   TargetDefault = %s\n", debugstr_w(f->TargetDefault));
 376     path = build_directory_name( 3, p, f->TargetDefault, NULL );
 377     clean_spaces_from_path( path );
 378     f->ResolvedTarget = strdupW( path );
 379
 380     TRACE("-> %s\n", debugstr_w(path));
 381     if (set_prop) msi_set_property( package->db, name, path );
 382     msi_free( p );
 383
 384     return path;
 385 }
 386
 387 /* wrapper to resist a need for a full rewrite right now */
 388 DWORD deformat_string(MSIPACKAGE *package, LPCWSTR ptr, WCHAR** data )
 389 {
 390     if (ptr)
 391     {
 392         MSIRECORD *rec = MSI_CreateRecord(1);
 393         DWORD size = 0;
 394
 395         MSI_RecordSetStringW(rec,0,ptr);
 396         MSI_FormatRecordW(package,rec,NULL,&size);
 397
 398         size++;
 399         *data = msi_alloc(size*sizeof(WCHAR));
 400         if (size > 1)
 401             MSI_FormatRecordW(package,rec,*data,&size);
 402         else
 403             *data[0] = 0;
 404
 405         msiobj_release( &rec->hdr );
 406         return sizeof(WCHAR)*size;
 407     }
 408
 409     *data = NULL;
 410     return 0;
 411 }
 412
 413 UINT schedule_action(MSIPACKAGE *package, UINT script, LPCWSTR action)
 414 {
 415     UINT count;
 416     LPWSTR *newbuf = NULL;
 417     if (script >= TOTAL_SCRIPTS)
 418     {
 419         FIXME("Unknown script requested %i\n",script);
 420         return ERROR_FUNCTION_FAILED;
 421     }
 422     TRACE("Scheduling Action %s in script %i\n",debugstr_w(action), script);
 423
 424     count = package->script->ActionCount[script];
 425     package->script->ActionCount[script]++;
 426     if (count != 0)
 427         newbuf = msi_realloc( package->script->Actions[script],
 428                         package->script->ActionCount[script]* sizeof(LPWSTR));
 429     else
 430         newbuf = msi_alloc( sizeof(LPWSTR));
 431
 432     newbuf[count] = strdupW(action);
 433     package->script->Actions[script] = newbuf;
 434
 435    return ERROR_SUCCESS;
 436 }
 437
 438 void msi_free_action_script(MSIPACKAGE *package, UINT script)
 439 {
 440     UINT i;
 441     for (i = 0; i < package->script->ActionCount[script]; i++)
 442         msi_free(package->script->Actions[script][i]);
 443
 444     msi_free(package->script->Actions[script]);
 445     package->script->Actions[script] = NULL;
 446     package->script->ActionCount[script] = 0;
 447 }
 448
 449 /*
 450  *  build_directory_name()
 451  *
 452  *  This function is to save messing round with directory names
 453  *  It handles adding backslashes between path segments,
 454  *   and can add \ at the end of the directory name if told to.
 455  *
 456  *  It takes a variable number of arguments.
 457  *  It always allocates a new string for the result, so make sure
 458  *   to free the return value when finished with it.
 459  *
 460  *  The first arg is the number of path segments that follow.
 461  *  The arguments following count are a list of path segments.
 462  *  A path segment may be NULL.
 463  *
 464  *  Path segments will be added with a \ separating them.
 465  *  A \ will not be added after the last segment, however if the
 466  *    last segment is NULL, then the last character will be a \
 467  *
 468  */
 469 LPWSTR build_directory_name(DWORD count, ...)
 470 {
 471     DWORD sz = 1, i;
 472     LPWSTR dir;
 473     va_list va;
 474
 475     va_start(va,count);
 476     for(i=0; i<count; i++)
 477     {
 478         LPCWSTR str = va_arg(va,LPCWSTR);
 479         if (str)
 480             sz += strlenW(str) + 1;
 481     }
 482     va_end(va);
 483
 484     dir = msi_alloc(sz*sizeof(WCHAR));
 485     dir[0]=0;
 486
 487     va_start(va,count);
 488     for(i=0; i<count; i++)
 489     {
 490         LPCWSTR str = va_arg(va,LPCWSTR);
 491         if (!str)
 492             continue;
 493         strcatW(dir, str);
 494         if( ((i+1)!=count) && dir[strlenW(dir)-1]!='\\')
 495             strcatW(dir, szBackSlash);
 496     }
 497     return dir;
 498 }
 499
 500 /***********************************************************************
 501  *            create_full_pathW
 502  *
 503  * Recursively create all directories in the path.
 504  *
 505  * shamelessly stolen from setupapi/queue.c
 506  */
 507 BOOL create_full_pathW(const WCHAR *path)
 508 {
 509     BOOL ret = TRUE;
 510     int len;
 511     WCHAR *new_path;
 512
 513     new_path = msi_alloc( (strlenW(path) + 1) * sizeof(WCHAR));
 514
 515     strcpyW(new_path, path);
 516
 517     while((len = strlenW(new_path)) && new_path[len - 1] == '\\')
 518     new_path[len - 1] = 0;
 519
 520     while(!CreateDirectoryW(new_path, NULL))
 521     {
 522         WCHAR *slash;
 523         DWORD last_error = GetLastError();
 524         if(last_error == ERROR_ALREADY_EXISTS)
 525             break;
 526
 527         if(last_error != ERROR_PATH_NOT_FOUND)
 528         {
 529             ret = FALSE;
 530             break;
 531         }
 532
 533         if(!(slash = strrchrW(new_path, '\\')))
 534         {
 535             ret = FALSE;
 536             break;
 537         }
 538
 539         len = slash - new_path;
 540         new_path[len] = 0;
 541         if(!create_full_pathW(new_path))
 542         {
 543             ret = FALSE;
 544             break;
 545         }
 546         new_path[len] = '\\';
 547     }
 548
 549     msi_free(new_path);
 550     return ret;
 551 }
 552
 553 void ui_progress(MSIPACKAGE *package, int a, int b, int c, int d )
 554 {
 555     MSIRECORD * row;
 556
 557     row = MSI_CreateRecord(4);
 558     MSI_RecordSetInteger(row,1,a);
 559     MSI_RecordSetInteger(row,2,b);
 560     MSI_RecordSetInteger(row,3,c);
 561     MSI_RecordSetInteger(row,4,d);
 562     MSI_ProcessMessage(package, INSTALLMESSAGE_PROGRESS, row);
 563     msiobj_release(&row->hdr);
 564
 565     msi_dialog_check_messages(NULL);
 566 }
 567
 568 void ui_actiondata(MSIPACKAGE *package, LPCWSTR action, MSIRECORD * record)
 569 {
 570     static const WCHAR Query_t[] =
 571         {'S','E','L','E','C','T',' ','*',' ','F','R','O','M',' ',
 572          '`','A','c','t','i','o', 'n','T','e','x','t','`',' ',
 573          'W','H','E','R','E',' ', '`','A','c','t','i','o','n','`',' ','=',
 574          ' ','\'','%','s','\'',0};
 575     WCHAR message[1024];
 576     MSIRECORD * row = 0;
 577     DWORD size;
 578
 579     if (!package->LastAction || strcmpW(package->LastAction, action))
 580     {
 581         row = MSI_QueryGetRecord(package->db, Query_t, action);
 582         if (!row)
 583             return;
 584
 585         if (MSI_RecordIsNull(row,3))
 586         {
 587             msiobj_release(&row->hdr);
 588             return;
 589         }
 590
 591         /* update the cached actionformat */
 592         msi_free(package->ActionFormat);
 593         package->ActionFormat = msi_dup_record_field(row,3);
 594
 595         msi_free(package->LastAction);
 596         package->LastAction = strdupW(action);
 597
 598         msiobj_release(&row->hdr);
 599     }
 600
 601     MSI_RecordSetStringW(record,0,package->ActionFormat);
 602     size = 1024;
 603     MSI_FormatRecordW(package,record,message,&size);
 604
 605     row = MSI_CreateRecord(1);
 606     MSI_RecordSetStringW(row,1,message);
 607
 608     MSI_ProcessMessage(package, INSTALLMESSAGE_ACTIONDATA, row);
 609
 610     msiobj_release(&row->hdr);
 611 }
 612
 613 void reduce_to_longfilename(WCHAR* filename)
 614 {
 615     LPWSTR p = strchrW(filename,'|');
 616     if (p)
 617         memmove(filename, p+1, (strlenW(p+1)+1)*sizeof(WCHAR));
 618 }
 619
 620 LPWSTR create_component_advertise_string(MSIPACKAGE* package,
 621                 MSICOMPONENT* component, LPCWSTR feature)
 622 {
 623     static const WCHAR fmt[] = {'%','s','%','s','%','c','%','s',0};
 624     WCHAR productid_85[21], component_85[21];
 625     LPWSTR output = NULL;
 626     DWORD sz = 0;
 627     GUID clsid;
 628
 629     /* > is used if there is a component GUID and < if not.  */
 630
 631     productid_85[0] = 0;
 632     component_85[0] = 0;
 633
 634     CLSIDFromString(package->ProductCode, &clsid);
 635     encode_base85_guid(&clsid, productid_85);
 636
 637     if (component)
 638     {
 639         CLSIDFromString(component->ComponentId, &clsid);
 640         encode_base85_guid(&clsid, component_85);
 641     }
 642
 643     TRACE("prod=%s feat=%s comp=%s\n", debugstr_w(productid_85),
 644           debugstr_w(feature), debugstr_w(component_85));
 645
 646     sz = 20 + lstrlenW(feature) + 20 + 3;
 647
 648     output = msi_alloc_zero(sz*sizeof(WCHAR));
 649
 650     sprintfW(output, fmt, productid_85, feature,
 651              component?'>':'<', component_85);
 652
 653     return output;
 654 }
 655
 656 /* update component state based on a feature change */
 657 void ACTION_UpdateComponentStates( MSIPACKAGE *package, MSIFEATURE *feature )
 658 {
 659     INSTALLSTATE newstate;
 660     ComponentList *cl;
 661
 662     newstate = feature->ActionRequest;
 663
 664     if (newstate == INSTALLSTATE_ABSENT)
 665         newstate = INSTALLSTATE_UNKNOWN;
 666
 667     LIST_FOR_EACH_ENTRY( cl, &feature->Components, ComponentList, entry )
 668     {
 669         MSICOMPONENT* component = cl->component;
 670
 671         if (!component->Enabled) continue;
 672
 673         TRACE("MODIFYING(%i): Component %s (Installed %i, Action %i, Request %i)\n",
 674             newstate, debugstr_w(component->Component), component->Installed,
 675             component->Action, component->ActionRequest);
 676
 677         if (newstate == INSTALLSTATE_LOCAL)
 678         {
 679             component->Action = INSTALLSTATE_LOCAL;
 680             component->ActionRequest = INSTALLSTATE_LOCAL;
 681         }
 682         else
 683         {
 684             ComponentList *clist;
 685             MSIFEATURE *f;
 686
 687             component->hasLocalFeature = FALSE;
 688
 689             component->Action = newstate;
 690             component->ActionRequest = newstate;
 691
 692             /* if any other feature wants it local we need to set it local */
 693             LIST_FOR_EACH_ENTRY( f, &package->features, MSIFEATURE, entry )
 694             {
 695                 if ( f->ActionRequest != INSTALLSTATE_LOCAL &&
 696                      f->ActionRequest != INSTALLSTATE_SOURCE )
 697                 {
 698                     continue;
 699                 }
 700
 701                 LIST_FOR_EACH_ENTRY( clist, &f->Components, ComponentList, entry )
 702                 {
 703                     if ( clist->component == component &&
 704                          (f->ActionRequest == INSTALLSTATE_LOCAL ||
 705                           f->ActionRequest == INSTALLSTATE_SOURCE) )
 706                     {
 707                         TRACE("Saved by %s\n", debugstr_w(f->Feature));
 708                         component->hasLocalFeature = TRUE;
 709
 710                         if (component->Attributes & msidbComponentAttributesOptional)
 711                         {
 712                             if (f->Attributes & msidbFeatureAttributesFavorSource)
 713                             {
 714                                 component->Action = INSTALLSTATE_SOURCE;
 715                                 component->ActionRequest = INSTALLSTATE_SOURCE;
 716                             }
 717                             else
 718                             {
 719                                 component->Action = INSTALLSTATE_LOCAL;
 720                                 component->ActionRequest = INSTALLSTATE_LOCAL;
 721                             }
 722                         }
 723                         else if (component->Attributes & msidbComponentAttributesSourceOnly)
 724                         {
 725                             component->Action = INSTALLSTATE_SOURCE;
 726                             component->ActionRequest = INSTALLSTATE_SOURCE;
 727                         }
 728                         else
 729                         {
 730                             component->Action = INSTALLSTATE_LOCAL;
 731                             component->ActionRequest = INSTALLSTATE_LOCAL;
 732                         }
 733                     }
 734                 }
 735             }
 736         }
 737         TRACE("Result (%i): Component %s (Installed %i, Action %i, Request %i)\n",
 738             newstate, debugstr_w(component->Component), component->Installed,
 739             component->Action, component->ActionRequest);
 740     }
 741 }
 742
 743 UINT register_unique_action(MSIPACKAGE *package, LPCWSTR action)
 744 {
 745     UINT count;
 746     LPWSTR *newbuf = NULL;
 747
 748     if (!package->script)
 749         return FALSE;
 750
 751     TRACE("Registering %s as unique action\n", debugstr_w(action));
 752
 753     count = package->script->UniqueActionsCount;
 754     package->script->UniqueActionsCount++;
 755     if (count != 0)
 756         newbuf = msi_realloc( package->script->UniqueActions,
 757                         package->script->UniqueActionsCount* sizeof(LPWSTR));
 758     else
 759         newbuf = msi_alloc( sizeof(LPWSTR));
 760
 761     newbuf[count] = strdupW(action);
 762     package->script->UniqueActions = newbuf;
 763
 764     return ERROR_SUCCESS;
 765 }
 766
 767 BOOL check_unique_action(const MSIPACKAGE *package, LPCWSTR action)
 768 {
 769     UINT i;
 770
 771     if (!package->script)
 772         return FALSE;
 773
 774     for (i = 0; i < package->script->UniqueActionsCount; i++)
 775         if (!strcmpW(package->script->UniqueActions[i], action))
 776             return TRUE;
 777
 778     return FALSE;
 779 }
 780
 781 WCHAR* generate_error_string(MSIPACKAGE *package, UINT error, DWORD count, ... )
 782 {
 783     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};
 784
 785     MSIRECORD *rec;
 786     MSIRECORD *row;
 787     DWORD size = 0;
 788     DWORD i;
 789     va_list va;
 790     LPCWSTR str;
 791     LPWSTR data;
 792
 793     row = MSI_QueryGetRecord(package->db, query, error);
 794     if (!row)
 795         return 0;
 796
 797     rec = MSI_CreateRecord(count+2);
 798
 799     str = MSI_RecordGetString(row,1);
 800     MSI_RecordSetStringW(rec,0,str);
 801     msiobj_release( &row->hdr );
 802     MSI_RecordSetInteger(rec,1,error);
 803
 804     va_start(va,count);
 805     for (i = 0; i < count; i++)
 806     {
 807         str = va_arg(va,LPCWSTR);
 808         MSI_RecordSetStringW(rec,(i+2),str);
 809     }
 810     va_end(va);
 811
 812     MSI_FormatRecordW(package,rec,NULL,&size);
 813
 814     size++;
 815     data = msi_alloc(size*sizeof(WCHAR));
 816     if (size > 1)
 817         MSI_FormatRecordW(package,rec,data,&size);
 818     else
 819         data[0] = 0;
 820     msiobj_release( &rec->hdr );
 821     return data;
 822 }