dlls/msi/appsearch.c

   1 /*
   2  * Implementation of the AppSearch action of the Microsoft Installer (msi.dll)
   3  *
   4  * Copyright 2005 Juan Lang
   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 #include <stdarg.h>
  21
  22 #define COBJMACROS
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "winreg.h"
  27 #include "msi.h"
  28 #include "msiquery.h"
  29 #include "msidefs.h"
  30 #include "winver.h"
  31 #include "shlwapi.h"
  32 #include "wine/debug.h"
  33 #include "msipriv.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(msi);
  36
  37 struct signature
  38 {
  39     LPCWSTR  Name;     /* NOT owned by this structure */
  40     LPWSTR   File;
  41     DWORD    MinVersionMS;
  42     DWORD    MinVersionLS;
  43     DWORD    MaxVersionMS;
  44     DWORD    MaxVersionLS;
  45     DWORD    MinSize;
  46     DWORD    MaxSize;
  47     FILETIME MinTime;
  48     FILETIME MaxTime;
  49     LPWSTR   Languages;
  50 };
  51
  52 void msi_parse_version_string(LPCWSTR verStr, PDWORD ms, PDWORD ls)
  53 {
  54     const WCHAR *ptr;
  55     int x1 = 0, x2 = 0, x3 = 0, x4 = 0;
  56
  57     x1 = wcstol(verStr, NULL, 10);
  58     ptr = wcschr(verStr, '.');
  59     if (ptr)
  60     {
  61         x2 = wcstol(ptr + 1, NULL, 10);
  62         ptr = wcschr(ptr + 1, '.');
  63     }
  64     if (ptr)
  65     {
  66         x3 = wcstol(ptr + 1, NULL, 10);
  67         ptr = wcschr(ptr + 1, '.');
  68     }
  69     if (ptr)
  70         x4 = wcstol(ptr + 1, NULL, 10);
  71     /* FIXME: byte-order dependent? */
  72     *ms = x1 << 16 | x2;
  73     if (ls) *ls = x3 << 16 | x4;
  74 }
  75
  76 /* Fills in sig with the values from the Signature table, where name is the
  77  * signature to find.  Upon return, sig->File will be NULL if the record is not
  78  * found, and not NULL if it is found.
  79  * Warning: clears all fields in sig!
  80  * Returns ERROR_SUCCESS upon success (where not finding the record counts as
  81  * success), something else on error.
  82  */
  83 static UINT get_signature( MSIPACKAGE *package, struct signature *sig, const WCHAR *name )
  84 {
  85     WCHAR *minVersion, *maxVersion, *p;
  86     MSIRECORD *row;
  87     DWORD time;
  88
  89     TRACE("package %p, sig %p\n", package, sig);
  90
  91     memset(sig, 0, sizeof(*sig));
  92     sig->Name = name;
  93     row = MSI_QueryGetRecord( package->db, L"SELECT * FROM `Signature` WHERE `Signature` = '%s'", name );
  94     if (!row)
  95     {
  96         TRACE("failed to query signature for %s\n", debugstr_w(name));
  97         return ERROR_SUCCESS;
  98     }
  99
 100     /* get properties */
 101     sig->File = msi_dup_record_field(row,2);
 102     if ((p = wcschr(sig->File, '|')))
 103     {
 104         p++;
 105         memmove(sig->File, p, (lstrlenW(p) + 1) * sizeof(WCHAR));
 106     }
 107
 108     minVersion = msi_dup_record_field(row,3);
 109     if (minVersion)
 110     {
 111         msi_parse_version_string( minVersion, &sig->MinVersionMS, &sig->MinVersionLS );
 112         free( minVersion );
 113     }
 114     maxVersion = msi_dup_record_field(row,4);
 115     if (maxVersion)
 116     {
 117         msi_parse_version_string( maxVersion, &sig->MaxVersionMS, &sig->MaxVersionLS );
 118         free( maxVersion );
 119     }
 120     sig->MinSize = MSI_RecordGetInteger(row,5);
 121     if (sig->MinSize == MSI_NULL_INTEGER)
 122         sig->MinSize = 0;
 123     sig->MaxSize = MSI_RecordGetInteger(row,6);
 124     if (sig->MaxSize == MSI_NULL_INTEGER)
 125         sig->MaxSize = 0;
 126     sig->Languages = msi_dup_record_field(row,9);
 127     time = MSI_RecordGetInteger(row,7);
 128     if (time != MSI_NULL_INTEGER)
 129         DosDateTimeToFileTime(HIWORD(time), LOWORD(time), &sig->MinTime);
 130     time = MSI_RecordGetInteger(row,8);
 131     if (time != MSI_NULL_INTEGER)
 132         DosDateTimeToFileTime(HIWORD(time), LOWORD(time), &sig->MaxTime);
 133
 134     TRACE("Found file name %s for Signature_ %s;\n",
 135           debugstr_w(sig->File), debugstr_w(name));
 136     TRACE("MinVersion is %d.%d.%d.%d\n", HIWORD(sig->MinVersionMS),
 137           LOWORD(sig->MinVersionMS), HIWORD(sig->MinVersionLS),
 138           LOWORD(sig->MinVersionLS));
 139     TRACE("MaxVersion is %d.%d.%d.%d\n", HIWORD(sig->MaxVersionMS),
 140           LOWORD(sig->MaxVersionMS), HIWORD(sig->MaxVersionLS),
 141           LOWORD(sig->MaxVersionLS));
 142     TRACE("MinSize is %lu, MaxSize is %lu\n", sig->MinSize, sig->MaxSize);
 143     TRACE("Languages is %s\n", debugstr_w(sig->Languages));
 144
 145     msiobj_release( &row->hdr );
 146
 147     return ERROR_SUCCESS;
 148 }
 149
 150 /* Frees any memory allocated in sig */
 151 static void free_signature( struct signature *sig )
 152 {
 153     free(sig->File);
 154     free(sig->Languages);
 155 }
 156
 157 static WCHAR *search_file( MSIPACKAGE *package, WCHAR *path, struct signature *sig )
 158 {
 159     VS_FIXEDFILEINFO *info;
 160     DWORD attr;
 161     UINT size;
 162     LPWSTR val = NULL;
 163     LPBYTE buffer;
 164
 165     if (!sig->File)
 166     {
 167         PathRemoveFileSpecW(path);
 168         PathAddBackslashW(path);
 169
 170         attr = msi_get_file_attributes( package, path );
 171         if (attr != INVALID_FILE_ATTRIBUTES && (attr & FILE_ATTRIBUTE_DIRECTORY))
 172             return wcsdup(path);
 173
 174         return NULL;
 175     }
 176
 177     attr = msi_get_file_attributes( package, path );
 178     if (attr == INVALID_FILE_ATTRIBUTES || (attr & FILE_ATTRIBUTE_DIRECTORY))
 179         return NULL;
 180
 181     size = msi_get_file_version_info( package, path, 0, NULL );
 182     if (!size)
 183         return wcsdup(path);
 184
 185     buffer = malloc(size);
 186     if (!buffer)
 187         return NULL;
 188
 189     size = msi_get_file_version_info( package, path, size, buffer );
 190     if (!size)
 191         goto done;
 192
 193     if (!VerQueryValueW(buffer, L"\\", (LPVOID)&info, &size) || !info)
 194         goto done;
 195
 196     if (sig->MinVersionLS || sig->MinVersionMS)
 197     {
 198         if (info->dwFileVersionMS < sig->MinVersionMS)
 199             goto done;
 200
 201         if (info->dwFileVersionMS == sig->MinVersionMS &&
 202             info->dwFileVersionLS < sig->MinVersionLS)
 203             goto done;
 204     }
 205
 206     if (sig->MaxVersionLS || sig->MaxVersionMS)
 207     {
 208         if (info->dwFileVersionMS > sig->MaxVersionMS)
 209             goto done;
 210
 211         if (info->dwFileVersionMS == sig->MaxVersionMS &&
 212             info->dwFileVersionLS > sig->MaxVersionLS)
 213             goto done;
 214     }
 215
 216     val = wcsdup(path);
 217
 218 done:
 219     free(buffer);
 220     return val;
 221 }
 222
 223 static UINT search_components( MSIPACKAGE *package, WCHAR **appValue, struct signature *sig )
 224 {
 225     MSIRECORD *row, *rec;
 226     LPCWSTR signature, guid;
 227     BOOL sigpresent = TRUE;
 228     BOOL isdir;
 229     UINT type;
 230     WCHAR path[MAX_PATH];
 231     DWORD size = MAX_PATH;
 232     LPWSTR ptr;
 233     DWORD attr;
 234
 235     TRACE("%s\n", debugstr_w(sig->Name));
 236
 237     *appValue = NULL;
 238
 239     row = MSI_QueryGetRecord(package->db, L"SELECT * FROM `CompLocator` WHERE `Signature_` = '%s'", sig->Name);
 240     if (!row)
 241     {
 242         TRACE("failed to query CompLocator for %s\n", debugstr_w(sig->Name));
 243         return ERROR_SUCCESS;
 244     }
 245
 246     signature = MSI_RecordGetString(row, 1);
 247     guid = MSI_RecordGetString(row, 2);
 248     type = MSI_RecordGetInteger(row, 3);
 249
 250     rec = MSI_QueryGetRecord(package->db, L"SELECT * FROM `Signature` WHERE `Signature` = '%s'", signature);
 251     if (!rec)
 252         sigpresent = FALSE;
 253
 254     *path = '\0';
 255     MsiLocateComponentW(guid, path, &size);
 256     if (!*path)
 257         goto done;
 258
 259     attr = msi_get_file_attributes( package, path );
 260     if (attr == INVALID_FILE_ATTRIBUTES)
 261         goto done;
 262
 263     isdir = (attr & FILE_ATTRIBUTE_DIRECTORY);
 264
 265     if (type != msidbLocatorTypeDirectory && sigpresent && !isdir)
 266     {
 267         *appValue = search_file( package, path, sig );
 268     }
 269     else if (!sigpresent && (type != msidbLocatorTypeDirectory || isdir))
 270     {
 271         if (type == msidbLocatorTypeFileName)
 272         {
 273             ptr = wcsrchr(path, '\\');
 274             *(ptr + 1) = '\0';
 275         }
 276         else
 277             PathAddBackslashW(path);
 278
 279         *appValue = wcsdup(path);
 280     }
 281     else if (sigpresent)
 282     {
 283         PathAddBackslashW(path);
 284         lstrcatW(path, MSI_RecordGetString(rec, 2));
 285
 286         attr = msi_get_file_attributes( package, path );
 287         if (attr != INVALID_FILE_ATTRIBUTES && !(attr & FILE_ATTRIBUTE_DIRECTORY))
 288             *appValue = wcsdup(path);
 289     }
 290
 291 done:
 292     if (rec) msiobj_release(&rec->hdr);
 293     msiobj_release(&row->hdr);
 294     return ERROR_SUCCESS;
 295 }
 296
 297 static void convert_reg_value( DWORD regType, const BYTE *value, DWORD sz, WCHAR **appValue )
 298 {
 299     LPWSTR ptr;
 300     DWORD i;
 301
 302     switch (regType)
 303     {
 304         case REG_SZ:
 305             if (*(LPCWSTR)value == '#')
 306             {
 307                 /* escape leading pound with another */
 308                 *appValue = malloc(sz + sizeof(WCHAR));
 309                 (*appValue)[0] = '#';
 310                 lstrcpyW(*appValue + 1, (LPCWSTR)value);
 311             }
 312             else
 313             {
 314                 *appValue = malloc(sz);
 315                 lstrcpyW(*appValue, (LPCWSTR)value);
 316             }
 317             break;
 318         case REG_DWORD:
 319             /* 7 chars for digits, 1 for NULL, 1 for #, and 1 for sign
 320              * char if needed
 321              */
 322             *appValue = malloc(10 * sizeof(WCHAR));
 323             swprintf(*appValue, 10, L"#%d", *(const DWORD *)value);
 324             break;
 325         case REG_EXPAND_SZ:
 326             sz = ExpandEnvironmentStringsW((LPCWSTR)value, NULL, 0);
 327             *appValue = malloc(sz * sizeof(WCHAR));
 328             ExpandEnvironmentStringsW((LPCWSTR)value, *appValue, sz);
 329             break;
 330         case REG_BINARY:
 331             /* #x<nibbles>\0 */
 332             *appValue = malloc((sz * 2 + 3) * sizeof(WCHAR));
 333             lstrcpyW(*appValue, L"#x");
 334             ptr = *appValue + lstrlenW(L"#x");
 335             for (i = 0; i < sz; i++, ptr += 2)
 336                 swprintf(ptr, 3, L"%02X", value[i]);
 337             break;
 338         default:
 339             WARN( "unimplemented for values of type %lu\n", regType );
 340             *appValue = NULL;
 341     }
 342 }
 343
 344 static UINT search_directory( MSIPACKAGE *, struct signature *, const WCHAR *, int, WCHAR ** );
 345
 346 static UINT search_reg( MSIPACKAGE *package, WCHAR **appValue, struct signature *sig )
 347 {
 348     const WCHAR *keyPath, *valueName;
 349     WCHAR *deformatted = NULL, *ptr = NULL, *end;
 350     int root, type;
 351     REGSAM access = KEY_READ;
 352     HKEY rootKey, key = NULL;
 353     DWORD sz = 0, regType;
 354     LPBYTE value = NULL;
 355     MSIRECORD *row;
 356     UINT rc;
 357
 358     TRACE("%s\n", debugstr_w(sig->Name));
 359
 360     *appValue = NULL;
 361
 362     row = MSI_QueryGetRecord( package->db, L"SELECT * FROM `RegLocator` WHERE `Signature_` = '%s'", sig->Name );
 363     if (!row)
 364     {
 365         TRACE("failed to query RegLocator for %s\n", debugstr_w(sig->Name));
 366         return ERROR_SUCCESS;
 367     }
 368
 369     root = MSI_RecordGetInteger(row, 2);
 370     keyPath = MSI_RecordGetString(row, 3);
 371     valueName = MSI_RecordGetString(row, 4);
 372     type = MSI_RecordGetInteger(row, 5);
 373
 374     deformat_string(package, keyPath, &deformatted);
 375
 376     switch (root)
 377     {
 378     case msidbRegistryRootClassesRoot:
 379         rootKey = HKEY_CLASSES_ROOT;
 380         break;
 381     case msidbRegistryRootCurrentUser:
 382         rootKey = HKEY_CURRENT_USER;
 383         break;
 384     case msidbRegistryRootLocalMachine:
 385         rootKey = HKEY_LOCAL_MACHINE;
 386         if (type & msidbLocatorType64bit) access |= KEY_WOW64_64KEY;
 387         else access |= KEY_WOW64_32KEY;
 388         break;
 389     case msidbRegistryRootUsers:
 390         rootKey = HKEY_USERS;
 391         break;
 392     default:
 393         WARN("Unknown root key %d\n", root);
 394         goto end;
 395     }
 396
 397     rc = RegOpenKeyExW( rootKey, deformatted, 0, access, &key );
 398     if (rc)
 399     {
 400         TRACE("RegOpenKeyExW returned %d\n", rc);
 401         goto end;
 402     }
 403
 404     free(deformatted);
 405     deformat_string(package, valueName, &deformatted);
 406
 407     rc = RegQueryValueExW(key, deformatted, NULL, NULL, NULL, &sz);
 408     if (rc)
 409     {
 410         TRACE("RegQueryValueExW returned %d\n", rc);
 411         goto end;
 412     }
 413     /* FIXME: sanity-check sz before allocating (is there an upper-limit
 414      * on the value of a property?)
 415      */
 416     value = malloc(sz);
 417     rc = RegQueryValueExW(key, deformatted, NULL, &regType, value, &sz);
 418     if (rc)
 419     {
 420         TRACE("RegQueryValueExW returned %d\n", rc);
 421         goto end;
 422     }
 423
 424     /* bail out if the registry key is empty */
 425     if (sz == 0)
 426         goto end;
 427
 428     /* expand if needed */
 429     if (regType == REG_EXPAND_SZ)
 430     {
 431         sz = ExpandEnvironmentStringsW((LPCWSTR)value, NULL, 0);
 432         if (sz)
 433         {
 434             WCHAR *buf = malloc(sz * sizeof(WCHAR));
 435             ExpandEnvironmentStringsW((LPCWSTR)value, buf, sz);
 436             free(value);
 437             value = (LPBYTE)buf;
 438         }
 439     }
 440
 441     if ((regType == REG_SZ || regType == REG_EXPAND_SZ) &&
 442         (ptr = wcschr((LPWSTR)value, '"')) && (end = wcschr(++ptr, '"')))
 443         *end = '\0';
 444     else
 445         ptr = (LPWSTR)value;
 446
 447     switch (type & 0x0f)
 448     {
 449     case msidbLocatorTypeDirectory:
 450         search_directory( package, sig, ptr, 0, appValue );
 451         break;
 452     case msidbLocatorTypeFileName:
 453         *appValue = search_file( package, ptr, sig );
 454         break;
 455     case msidbLocatorTypeRawValue:
 456         convert_reg_value( regType, value, sz, appValue );
 457         break;
 458     default:
 459         FIXME("unimplemented for type %d (key path %s, value %s)\n",
 460               type, debugstr_w(keyPath), debugstr_w(valueName));
 461     }
 462 end:
 463     free( value );
 464     RegCloseKey( key );
 465     free( deformatted );
 466
 467     msiobj_release(&row->hdr);
 468     return ERROR_SUCCESS;
 469 }
 470
 471 static LPWSTR get_ini_field(LPWSTR buf, int field)
 472 {
 473     LPWSTR beg, end;
 474     int i = 1;
 475
 476     if (field == 0)
 477         return wcsdup(buf);
 478
 479     beg = buf;
 480     while ((end = wcschr(beg, ',')) && i < field)
 481     {
 482         beg = end + 1;
 483         while (*beg == ' ')
 484             beg++;
 485
 486         i++;
 487     }
 488
 489     end = wcschr(beg, ',');
 490     if (!end)
 491         end = beg + lstrlenW(beg);
 492
 493     *end = '\0';
 494     return wcsdup(beg);
 495 }
 496
 497 static UINT search_ini( MSIPACKAGE *package, WCHAR **appValue, struct signature *sig )
 498 {
 499     MSIRECORD *row;
 500     LPWSTR fileName, section, key;
 501     int field, type;
 502     WCHAR buf[MAX_PATH];
 503
 504     TRACE("%s\n", debugstr_w(sig->Name));
 505
 506     *appValue = NULL;
 507
 508     row = MSI_QueryGetRecord( package->db, L"SELECT * FROM `IniLocator` WHERE `Signature_` = '%s'", sig->Name );
 509     if (!row)
 510     {
 511         TRACE("failed to query IniLocator for %s\n", debugstr_w(sig->Name));
 512         return ERROR_SUCCESS;
 513     }
 514
 515     fileName = msi_dup_record_field(row, 2);
 516     section = msi_dup_record_field(row, 3);
 517     key = msi_dup_record_field(row, 4);
 518     field = MSI_RecordGetInteger(row, 5);
 519     type = MSI_RecordGetInteger(row, 6);
 520     if (field == MSI_NULL_INTEGER)
 521         field = 0;
 522     if (type == MSI_NULL_INTEGER)
 523         type = 0;
 524
 525     GetPrivateProfileStringW(section, key, NULL, buf, MAX_PATH, fileName);
 526     if (buf[0])
 527     {
 528         switch (type & 0x0f)
 529         {
 530         case msidbLocatorTypeDirectory:
 531             search_directory( package, sig, buf, 0, appValue );
 532             break;
 533         case msidbLocatorTypeFileName:
 534             *appValue = search_file( package, buf, sig );
 535             break;
 536         case msidbLocatorTypeRawValue:
 537             *appValue = get_ini_field(buf, field);
 538             break;
 539         }
 540     }
 541
 542     free(fileName);
 543     free(section);
 544     free(key);
 545
 546     msiobj_release(&row->hdr);
 547
 548     return ERROR_SUCCESS;
 549 }
 550
 551 /* Expands the value in src into a path without property names and only
 552  * containing long path names into dst.  Replaces at most len characters of dst,
 553  * and always NULL-terminates dst if dst is not NULL and len >= 1.
 554  * May modify src.
 555  * Assumes src and dst are non-overlapping.
 556  * FIXME: return code probably needed:
 557  * - what does AppSearch return if the table values are invalid?
 558  * - what if dst is too small?
 559  */
 560 static void expand_any_path( MSIPACKAGE *package, WCHAR *src, WCHAR *dst, size_t len )
 561 {
 562     WCHAR *ptr, *deformatted;
 563
 564     if (!src || !dst || !len)
 565     {
 566         if (dst) *dst = '\0';
 567         return;
 568     }
 569
 570     dst[0] = '\0';
 571
 572     /* Ignore the short portion of the path */
 573     if ((ptr = wcschr(src, '|')))
 574         ptr++;
 575     else
 576         ptr = src;
 577
 578     deformat_string(package, ptr, &deformatted);
 579     if (!deformatted || lstrlenW(deformatted) > len - 1)
 580     {
 581         free(deformatted);
 582         return;
 583     }
 584
 585     lstrcpyW(dst, deformatted);
 586     dst[lstrlenW(deformatted)] = '\0';
 587     free(deformatted);
 588 }
 589
 590 static LANGID *parse_languages( const WCHAR *languages, DWORD *num_ids )
 591 {
 592     UINT i, count = 1;
 593     WCHAR *str = wcsdup( languages ), *p, *q;
 594     LANGID *ret;
 595
 596     if (!str) return NULL;
 597     for (p = q = str; (q = wcschr( q, ',' )); q++) count++;
 598
 599     if (!(ret = malloc( count * sizeof(LANGID) )))
 600     {
 601         free( str );
 602         return NULL;
 603     }
 604     i = 0;
 605     while (*p)
 606     {
 607         q = wcschr( p, ',' );
 608         if (q) *q = 0;
 609         ret[i] = wcstol( p, NULL, 10 );
 610         if (!q) break;
 611         p = q + 1;
 612         i++;
 613     }
 614     free( str );
 615     *num_ids = count;
 616     return ret;
 617 }
 618
 619 static BOOL match_languages( const void *version, const WCHAR *languages )
 620 {
 621     struct lang
 622     {
 623         USHORT id;
 624         USHORT codepage;
 625     } *lang;
 626     UINT len, j;
 627     DWORD num_ids, i;
 628     BOOL found = FALSE;
 629     LANGID *ids;
 630
 631     if (!languages || !languages[0]) return TRUE;
 632     if (!VerQueryValueW( version, L"\\VarFileInfo\\Translation", (void **)&lang, &len )) return FALSE;
 633     if (!(ids = parse_languages( languages, &num_ids ))) return FALSE;
 634
 635     for (i = 0; i < num_ids; i++)
 636     {
 637         found = FALSE;
 638         for (j = 0; j < len / sizeof(struct lang); j++)
 639         {
 640             if (!ids[i] || ids[i] == lang[j].id) found = TRUE;
 641         }
 642         if (!found) goto done;
 643     }
 644
 645 done:
 646     free( ids );
 647     return found;
 648 }
 649
 650 /* Sets *matches to whether the file (whose path is filePath) matches the
 651  * versions set in sig.
 652  * Return ERROR_SUCCESS in case of success (whether or not the file matches),
 653  * something else if an install-halting error occurs.
 654  */
 655 static UINT file_version_matches( MSIPACKAGE *package, const struct signature *sig, const WCHAR *filePath,
 656                                   BOOL *matches )
 657 {
 658     UINT len;
 659     void *version;
 660     VS_FIXEDFILEINFO *info = NULL;
 661     DWORD size = msi_get_file_version_info( package, filePath, 0, NULL );
 662
 663     *matches = FALSE;
 664
 665     if (!size) return ERROR_SUCCESS;
 666     if (!(version = malloc( size ))) return ERROR_OUTOFMEMORY;
 667
 668     if (msi_get_file_version_info( package, filePath, size, version ))
 669         VerQueryValueW( version, L"\\", (void **)&info, &len );
 670
 671     if (info)
 672     {
 673         TRACE("comparing file version %d.%d.%d.%d:\n",
 674               HIWORD(info->dwFileVersionMS),
 675               LOWORD(info->dwFileVersionMS),
 676               HIWORD(info->dwFileVersionLS),
 677               LOWORD(info->dwFileVersionLS));
 678         if (info->dwFileVersionMS < sig->MinVersionMS
 679             || (info->dwFileVersionMS == sig->MinVersionMS &&
 680                 info->dwFileVersionLS < sig->MinVersionLS))
 681         {
 682             TRACE("less than minimum version %d.%d.%d.%d\n",
 683                    HIWORD(sig->MinVersionMS),
 684                    LOWORD(sig->MinVersionMS),
 685                    HIWORD(sig->MinVersionLS),
 686                    LOWORD(sig->MinVersionLS));
 687         }
 688         else if ((sig->MaxVersionMS || sig->MaxVersionLS) &&
 689                  (info->dwFileVersionMS > sig->MaxVersionMS ||
 690                   (info->dwFileVersionMS == sig->MaxVersionMS &&
 691                    info->dwFileVersionLS > sig->MaxVersionLS)))
 692         {
 693             TRACE("greater than maximum version %d.%d.%d.%d\n",
 694                    HIWORD(sig->MaxVersionMS),
 695                    LOWORD(sig->MaxVersionMS),
 696                    HIWORD(sig->MaxVersionLS),
 697                    LOWORD(sig->MaxVersionLS));
 698         }
 699         else if (!match_languages( version, sig->Languages ))
 700         {
 701             TRACE("languages %s not supported\n", debugstr_w( sig->Languages ));
 702         }
 703         else *matches = TRUE;
 704     }
 705     free( version );
 706     return ERROR_SUCCESS;
 707 }
 708
 709 /* Sets *matches to whether the file in findData matches that in sig.
 710  * fullFilePath is assumed to be the full path of the file specified in
 711  * findData, which may be necessary to compare the version.
 712  * Return ERROR_SUCCESS in case of success (whether or not the file matches),
 713  * something else if an install-halting error occurs.
 714  */
 715 static UINT file_matches_sig( MSIPACKAGE *package, const struct signature *sig, const WIN32_FIND_DATAW *findData,
 716                               const WCHAR *fullFilePath, BOOL *matches )
 717 {
 718     UINT rc = ERROR_SUCCESS;
 719
 720     *matches = TRUE;
 721     /* assumes the caller has already ensured the filenames match, so check
 722      * the other fields..
 723      */
 724     if (sig->MinTime.dwLowDateTime || sig->MinTime.dwHighDateTime)
 725     {
 726         if (findData->ftCreationTime.dwHighDateTime <
 727          sig->MinTime.dwHighDateTime ||
 728          (findData->ftCreationTime.dwHighDateTime == sig->MinTime.dwHighDateTime
 729          && findData->ftCreationTime.dwLowDateTime <
 730          sig->MinTime.dwLowDateTime))
 731             *matches = FALSE;
 732     }
 733     if (*matches && (sig->MaxTime.dwLowDateTime || sig->MaxTime.dwHighDateTime))
 734     {
 735         if (findData->ftCreationTime.dwHighDateTime >
 736          sig->MaxTime.dwHighDateTime ||
 737          (findData->ftCreationTime.dwHighDateTime == sig->MaxTime.dwHighDateTime
 738          && findData->ftCreationTime.dwLowDateTime >
 739          sig->MaxTime.dwLowDateTime))
 740             *matches = FALSE;
 741     }
 742     if (*matches && sig->MinSize && findData->nFileSizeLow < sig->MinSize)
 743         *matches = FALSE;
 744     if (*matches && sig->MaxSize && findData->nFileSizeLow > sig->MaxSize)
 745         *matches = FALSE;
 746     if (*matches && (sig->MinVersionMS || sig->MinVersionLS ||
 747      sig->MaxVersionMS || sig->MaxVersionLS))
 748         rc = file_version_matches( package, sig, fullFilePath, matches );
 749     return rc;
 750 }
 751
 752 /* Recursively searches the directory dir for files that match the signature
 753  * sig, up to (depth + 1) levels deep.  That is, if depth is 0, it searches dir
 754  * (and only dir).  If depth is 1, searches dir and its immediate
 755  * subdirectories.
 756  * Assumes sig->File is not NULL.
 757  * Returns ERROR_SUCCESS on success (which may include non-critical errors),
 758  * something else on failures which should halt the install.
 759  */
 760 static UINT recurse_search_directory( MSIPACKAGE *package, WCHAR **appValue, struct signature *sig, const WCHAR *dir,
 761                                       int depth )
 762 {
 763     HANDLE hFind;
 764     WIN32_FIND_DATAW findData;
 765     UINT rc = ERROR_SUCCESS;
 766     size_t dirLen = lstrlenW(dir), fileLen = lstrlenW(sig->File);
 767     WCHAR subpath[MAX_PATH];
 768     WCHAR *buf;
 769     DWORD len;
 770
 771     TRACE("Searching directory %s for file %s, depth %d\n", debugstr_w(dir), debugstr_w(sig->File), depth);
 772
 773     if (depth < 0)
 774         return ERROR_SUCCESS;
 775
 776     *appValue = NULL;
 777     /* We need the buffer in both paths below, so go ahead and allocate it
 778      * here.  Add two because we might need to add a backslash if the dir name
 779      * isn't backslash-terminated.
 780      */
 781     len = dirLen + max(fileLen, lstrlenW(L"*.*")) + 2;
 782     buf = malloc(len * sizeof(WCHAR));
 783     if (!buf)
 784         return ERROR_OUTOFMEMORY;
 785
 786     lstrcpyW(buf, dir);
 787     PathAddBackslashW(buf);
 788     lstrcatW(buf, sig->File);
 789
 790     hFind = msi_find_first_file( package, buf, &findData );
 791     if (hFind != INVALID_HANDLE_VALUE)
 792     {
 793         if (!(findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
 794         {
 795             BOOL matches;
 796
 797             rc = file_matches_sig( package, sig, &findData, buf, &matches );
 798             if (rc == ERROR_SUCCESS && matches)
 799             {
 800                 TRACE("found file, returning %s\n", debugstr_w(buf));
 801                 *appValue = buf;
 802             }
 803         }
 804         FindClose(hFind);
 805     }
 806
 807     if (rc == ERROR_SUCCESS && !*appValue)
 808     {
 809         lstrcpyW(buf, dir);
 810         PathAddBackslashW(buf);
 811         lstrcatW(buf, L"*.*");
 812
 813         hFind = msi_find_first_file( package, buf, &findData );
 814         if (hFind != INVALID_HANDLE_VALUE)
 815         {
 816             if (findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY &&
 817                 wcscmp( findData.cFileName, L"." ) &&
 818                 wcscmp( findData.cFileName, L".." ))
 819             {
 820                 lstrcpyW(subpath, dir);
 821                 PathAppendW(subpath, findData.cFileName);
 822                 rc = recurse_search_directory( package, appValue, sig, subpath, depth - 1 );
 823             }
 824
 825             while (rc == ERROR_SUCCESS && !*appValue && msi_find_next_file( package, hFind, &findData ))
 826             {
 827                 if (!wcscmp( findData.cFileName, L"." ) ||
 828                     !wcscmp( findData.cFileName, L".." ))
 829                     continue;
 830
 831                 lstrcpyW(subpath, dir);
 832                 PathAppendW(subpath, findData.cFileName);
 833                 if (findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
 834                     rc = recurse_search_directory( package, appValue, sig, subpath, depth - 1 );
 835             }
 836
 837             FindClose(hFind);
 838         }
 839     }
 840
 841     if (*appValue != buf)
 842         free(buf);
 843
 844     return rc;
 845 }
 846
 847 static UINT check_directory( MSIPACKAGE *package, const WCHAR *dir, WCHAR **appValue )
 848 {
 849     DWORD attr = msi_get_file_attributes( package, dir );
 850
 851     if (attr != INVALID_FILE_ATTRIBUTES && (attr & FILE_ATTRIBUTE_DIRECTORY))
 852     {
 853         TRACE("directory exists, returning %s\n", debugstr_w(dir));
 854         *appValue = wcsdup(dir);
 855     }
 856
 857     return ERROR_SUCCESS;
 858 }
 859
 860 static BOOL is_full_path( const WCHAR *path )
 861 {
 862     WCHAR first = towupper(path[0]);
 863     BOOL ret;
 864
 865     if (first >= 'A' && first <= 'Z' && path[1] == ':')
 866         ret = TRUE;
 867     else if (path[0] == '\\' && path[1] == '\\')
 868         ret = TRUE;
 869     else
 870         ret = FALSE;
 871     return ret;
 872 }
 873
 874 static UINT search_directory( MSIPACKAGE *package, struct signature *sig, const WCHAR *path, int depth, WCHAR **appValue )
 875 {
 876     UINT rc;
 877     DWORD attr;
 878     WCHAR *val = NULL, *new_val;
 879
 880     TRACE("%p, %p, %s, %d, %p\n", package, sig, debugstr_w(path), depth, appValue);
 881
 882     if (is_full_path( path ))
 883     {
 884         if (sig->File)
 885             rc = recurse_search_directory( package, &val, sig, path, depth );
 886         else
 887         {
 888             /* Recursively searching a directory makes no sense when the
 889              * directory to search is the thing you're trying to find.
 890              */
 891             rc = check_directory( package, path, &val );
 892         }
 893     }
 894     else
 895     {
 896         WCHAR pathWithDrive[MAX_PATH] = { 'C',':','\\',0 };
 897         DWORD drives = GetLogicalDrives();
 898         int i;
 899
 900         rc = ERROR_SUCCESS;
 901         for (i = 0; rc == ERROR_SUCCESS && !val && i < 26; i++)
 902         {
 903             if (!(drives & (1 << i)))
 904                 continue;
 905
 906             pathWithDrive[0] = 'A' + i;
 907             if (GetDriveTypeW(pathWithDrive) != DRIVE_FIXED)
 908                 continue;
 909
 910             lstrcpynW(pathWithDrive + 3, path, ARRAY_SIZE(pathWithDrive) - 3);
 911
 912             if (sig->File)
 913                 rc = recurse_search_directory( package, &val, sig, pathWithDrive, depth );
 914             else
 915                 rc = check_directory( package, pathWithDrive, &val );
 916         }
 917     }
 918
 919     attr = msi_get_file_attributes( package, val );
 920     if (attr != INVALID_FILE_ATTRIBUTES && (attr & FILE_ATTRIBUTE_DIRECTORY) &&
 921         val && val[lstrlenW(val) - 1] != '\\')
 922     {
 923         new_val = realloc(val, (wcslen(val) + 2) * sizeof(WCHAR));
 924         if (!new_val)
 925         {
 926             free(val);
 927             val = NULL;
 928             rc = ERROR_OUTOFMEMORY;
 929         }
 930         else
 931         {
 932             val = new_val;
 933             PathAddBackslashW(val);
 934         }
 935     }
 936
 937     *appValue = val;
 938
 939     TRACE("returning %d\n", rc);
 940     return rc;
 941 }
 942
 943 static UINT search_sig_name( MSIPACKAGE *, const WCHAR *, struct signature *, WCHAR ** );
 944
 945 static UINT search_dr( MSIPACKAGE *package, WCHAR **appValue, struct signature *sig )
 946 {
 947     LPWSTR parent = NULL;
 948     LPCWSTR parentName;
 949     WCHAR path[MAX_PATH];
 950     WCHAR expanded[MAX_PATH];
 951     MSIRECORD *row;
 952     int depth;
 953     DWORD sz, attr;
 954     UINT rc;
 955
 956     TRACE("%s\n", debugstr_w(sig->Name));
 957
 958     *appValue = NULL;
 959
 960     row = MSI_QueryGetRecord( package->db, L"SELECT * FROM `DrLocator` WHERE `Signature_` = '%s'", sig->Name );
 961     if (!row)
 962     {
 963         TRACE("failed to query DrLocator for %s\n", debugstr_w(sig->Name));
 964         return ERROR_SUCCESS;
 965     }
 966
 967     /* check whether parent is set */
 968     parentName = MSI_RecordGetString(row, 2);
 969     if (parentName)
 970     {
 971         struct signature parentSig;
 972
 973         search_sig_name( package, parentName, &parentSig, &parent );
 974         free_signature( &parentSig );
 975         if (!parent)
 976         {
 977             msiobj_release(&row->hdr);
 978             return ERROR_SUCCESS;
 979         }
 980     }
 981
 982     sz = MAX_PATH;
 983     MSI_RecordGetStringW(row, 3, path, &sz);
 984
 985     if (MSI_RecordIsNull(row,4))
 986         depth = 0;
 987     else
 988         depth = MSI_RecordGetInteger(row,4);
 989
 990     if (sz)
 991         expand_any_path( package, path, expanded, MAX_PATH );
 992     else
 993         lstrcpyW(expanded, path);
 994
 995     if (parent)
 996     {
 997         attr = msi_get_file_attributes( package, parent );
 998         if (attr != INVALID_FILE_ATTRIBUTES &&
 999             !(attr & FILE_ATTRIBUTE_DIRECTORY))
1000         {
1001             PathRemoveFileSpecW(parent);
1002             PathAddBackslashW(parent);
1003         }
1004
1005         lstrcpyW(path, parent);
1006         lstrcatW(path, expanded);
1007     }
1008     else if (sz) lstrcpyW(path, expanded);
1009
1010     PathAddBackslashW(path);
1011
1012     rc = search_directory( package, sig, path, depth, appValue );
1013
1014     free(parent);
1015     msiobj_release(&row->hdr);
1016     TRACE("returning %d\n", rc);
1017     return rc;
1018 }
1019
1020 static UINT search_sig_name( MSIPACKAGE *package, const WCHAR *sigName, struct signature *sig, WCHAR **appValue )
1021 {
1022     UINT rc;
1023
1024     *appValue = NULL;
1025     rc = get_signature( package, sig, sigName );
1026     if (rc == ERROR_SUCCESS)
1027     {
1028         rc = search_components( package, appValue, sig );
1029         if (rc == ERROR_SUCCESS && !*appValue)
1030         {
1031             rc = search_reg( package, appValue, sig );
1032             if (rc == ERROR_SUCCESS && !*appValue)
1033             {
1034                 rc = search_ini( package, appValue, sig );
1035                 if (rc == ERROR_SUCCESS && !*appValue)
1036                     rc = search_dr( package, appValue, sig );
1037             }
1038         }
1039     }
1040     return rc;
1041 }
1042
1043 static UINT ITERATE_AppSearch(MSIRECORD *row, LPVOID param)
1044 {
1045     MSIPACKAGE *package = param;
1046     LPCWSTR propName, sigName;
1047     LPWSTR value = NULL;
1048     struct signature sig;
1049     MSIRECORD *uirow;
1050     UINT r;
1051
1052     /* get property and signature */
1053     propName = MSI_RecordGetString(row, 1);
1054     sigName = MSI_RecordGetString(row, 2);
1055
1056     TRACE("%s %s\n", debugstr_w(propName), debugstr_w(sigName));
1057
1058     r = search_sig_name( package, sigName, &sig, &value );
1059     if (value)
1060     {
1061         r = msi_set_property( package->db, propName, value, -1 );
1062         if (r == ERROR_SUCCESS && !wcscmp( propName, L"SourceDir" ))
1063             msi_reset_source_folders( package );
1064
1065         free(value);
1066     }
1067     free_signature( &sig );
1068
1069     uirow = MSI_CreateRecord( 2 );
1070     MSI_RecordSetStringW( uirow, 1, propName );
1071     MSI_RecordSetStringW( uirow, 2, sigName );
1072     MSI_ProcessMessage(package, INSTALLMESSAGE_ACTIONDATA, uirow);
1073     msiobj_release( &uirow->hdr );
1074
1075     return r;
1076 }
1077
1078 UINT ACTION_AppSearch(MSIPACKAGE *package)
1079 {
1080     MSIQUERY *view;
1081     UINT r;
1082
1083     if (msi_action_is_unique(package, L"AppSearch"))
1084     {
1085         TRACE("Skipping AppSearch action: already done in UI sequence\n");
1086         return ERROR_SUCCESS;
1087     }
1088     else
1089         msi_register_unique_action(package, L"AppSearch");
1090
1091     r = MSI_OpenQuery( package->db, &view, L"SELECT * FROM `AppSearch`" );
1092     if (r != ERROR_SUCCESS)
1093         return ERROR_SUCCESS;
1094
1095     r = MSI_IterateRecords( view, NULL, ITERATE_AppSearch, package );
1096     msiobj_release( &view->hdr );
1097     return r;
1098 }
1099
1100 static UINT ITERATE_CCPSearch(MSIRECORD *row, LPVOID param)
1101 {
1102     MSIPACKAGE *package = param;
1103     LPCWSTR signature;
1104     LPWSTR value = NULL;
1105     struct signature sig;
1106     UINT r = ERROR_SUCCESS;
1107
1108     signature = MSI_RecordGetString(row, 1);
1109
1110     TRACE("%s\n", debugstr_w(signature));
1111
1112     search_sig_name( package, signature, &sig, &value );
1113     if (value)
1114     {
1115         TRACE("Found signature %s\n", debugstr_w(signature));
1116         msi_set_property( package->db, L"CCP_Success", L"1", -1 );
1117         free(value);
1118         r = ERROR_NO_MORE_ITEMS;
1119     }
1120
1121     free_signature(&sig);
1122     return r;
1123 }
1124
1125 UINT ACTION_CCPSearch(MSIPACKAGE *package)
1126 {
1127     MSIQUERY *view;
1128     UINT r;
1129
1130     if (msi_action_is_unique(package, L"CCPSearch"))
1131     {
1132         TRACE("Skipping AppSearch action: already done in UI sequence\n");
1133         return ERROR_SUCCESS;
1134     }
1135     else
1136         msi_register_unique_action(package, L"CCPSearch");
1137
1138     r = MSI_OpenQuery(package->db, &view, L"SELECT * FROM `CCPSearch`");
1139     if (r != ERROR_SUCCESS)
1140         return ERROR_SUCCESS;
1141
1142     r = MSI_IterateRecords(view, NULL, ITERATE_CCPSearch, package);
1143     msiobj_release(&view->hdr);
1144     return r;
1145 }