dlls/gameux/gamestatistics.c

   1 /*
   2  *    Gameux library coclass GameStatistics implementation
   3  *
   4  * Copyright (C) 2010 Mariusz Pluciński
   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 #define COBJMACROS
  21
  22 #include "config.h"
  23
  24 #include "ole2.h"
  25 #include "winreg.h"
  26 #include "msxml2.h"
  27 #include "shlwapi.h"
  28 #include "shlobj.h"
  29
  30 #include "gameux.h"
  31 #include "gameux_private.h"
  32
  33 #include "wine/debug.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(gameux);
  36
  37 /*
  38  * constant definitions
  39  */
  40 #define MAX_CATEGORY_LENGTH 60
  41 #define MAX_NAME_LENGTH 30
  42 #define MAX_VALUE_LENGTH 30
  43 #define MAX_CATEGORIES 10
  44 #define MAX_STATS_PER_CATEGORY 10
  45 /*******************************************************************************
  46  * Game statistics helper components
  47  */
  48 /*******************************************************************************
  49  * struct GAMEUX_STATS
  50  *
  51  * set of structures for containing game's data
  52  */
  53 struct GAMEUX_STATS_STAT
  54 {
  55     WCHAR sName[MAX_NAME_LENGTH+1];
  56     WCHAR sValue[MAX_VALUE_LENGTH+1];
  57 };
  58 struct GAMEUX_STATS_CATEGORY
  59 {
  60     WCHAR sName[MAX_CATEGORY_LENGTH+1];
  61     struct GAMEUX_STATS_STAT stats[MAX_STATS_PER_CATEGORY];
  62 };
  63 struct GAMEUX_STATS
  64 {
  65     WCHAR sStatsFile[MAX_PATH];
  66     struct GAMEUX_STATS_CATEGORY categories[MAX_CATEGORIES];
  67 };
  68 /*******************************************************************************
  69  * GAMEUX_createStatsDirectory
  70  *
  71  * Helper function, creates directory to store game statistics
  72  *
  73  * Parameters
  74  *  path                [I]     path to game statistics file.
  75  *                              base directory of this file will
  76  *                              be created if it doesn't exists
  77  */
  78 static HRESULT GAMEUX_createStatsDirectory(LPCWSTR lpFilePath)
  79 {
  80     HRESULT hr;
  81     WCHAR lpDirectoryPath[MAX_PATH];
  82     LPCWSTR lpEnd;
  83
  84     lpEnd = StrRChrW(lpFilePath, NULL, '\\');
  85     lstrcpynW(lpDirectoryPath, lpFilePath, lpEnd-lpFilePath+1);
  86
  87     hr = HRESULT_FROM_WIN32(SHCreateDirectoryExW(NULL, lpDirectoryPath, NULL));
  88
  89     if(hr == HRESULT_FROM_WIN32(ERROR_FILE_EXISTS) ||
  90        hr == HRESULT_FROM_WIN32(ERROR_ALREADY_EXISTS))
  91         hr = S_FALSE;
  92
  93     return hr;
  94 }
  95 /*******************************************************************
  96  * GAMEUX_updateStatisticsFile
  97  *
  98  * Helper function updating data stored in statistics file
  99  *
 100  * Parameters:
 101  *  data                [I]     pointer to struct containing
 102  *                              statistics data
 103  */
 104 static HRESULT GAMEUX_updateStatisticsFile(struct GAMEUX_STATS *stats)
 105 {
 106     static const WCHAR sStatistics[] = {'S','t','a','t','i','s','t','i','c','s',0};
 107     static const WCHAR sCategory[] = {'C','a','t','e','g','o','r','y',0};
 108     static const WCHAR sIndex[] = {'I','n','d','e','x',0};
 109     static const WCHAR sStatistic[] = {'S','t','a','t','i','s','t','i','c',0};
 110     static const WCHAR sName[] = {'N','a','m','e',0};
 111     static const WCHAR sValue[] = {'V','a','l','u','e',0};
 112
 113     HRESULT hr = S_OK;
 114     IXMLDOMDocument *document;
 115     IXMLDOMElement *root, *statisticsElement;
 116     IXMLDOMNode *categoryNode, *statisticsNode;
 117     VARIANT vStatsFilePath, vValue;
 118     BSTR bstrStatistics = NULL, bstrCategory = NULL, bstrIndex = NULL,
 119         bstrStatistic = NULL, bstrName = NULL, bstrValue = NULL;
 120     int i, j;
 121
 122     TRACE("(%p)\n", stats);
 123
 124     V_VT(&vStatsFilePath) = VT_BSTR;
 125     V_BSTR(&vStatsFilePath) = SysAllocString(stats->sStatsFile);
 126     if(!V_BSTR(&vStatsFilePath))
 127         hr = E_OUTOFMEMORY;
 128
 129     if(SUCCEEDED(hr))
 130         hr = CoCreateInstance(&CLSID_DOMDocument, NULL, CLSCTX_INPROC_SERVER,
 131                               &IID_IXMLDOMDocument, (void**)&document);
 132
 133     if(SUCCEEDED(hr))
 134     {
 135         bstrStatistics = SysAllocString(sStatistics);
 136         if(!bstrStatistics)
 137             hr = E_OUTOFMEMORY;
 138     }
 139
 140     if(SUCCEEDED(hr))
 141         hr = IXMLDOMDocument_createElement(document, bstrStatistics, &root);
 142
 143     if(SUCCEEDED(hr))
 144     {
 145         bstrCategory = SysAllocString(sCategory);
 146         if(!bstrCategory)
 147             hr = E_OUTOFMEMORY;
 148     }
 149
 150     if(SUCCEEDED(hr))
 151     {
 152         bstrIndex = SysAllocString(sIndex);
 153         if(!bstrIndex)
 154             hr = E_OUTOFMEMORY;
 155     }
 156
 157     if(SUCCEEDED(hr))
 158     {
 159         bstrStatistic = SysAllocString(sStatistic);
 160         if(!bstrStatistic)
 161             hr = E_OUTOFMEMORY;
 162     }
 163
 164     if(SUCCEEDED(hr))
 165     {
 166         bstrName = SysAllocString(sName);
 167         if(!bstrName)
 168             hr = E_OUTOFMEMORY;
 169     }
 170
 171     if(SUCCEEDED(hr))
 172     {
 173         bstrValue = SysAllocString(sValue);
 174         if(!bstrValue)
 175             hr = E_OUTOFMEMORY;
 176     }
 177
 178     if(SUCCEEDED(hr))
 179         for(i=0; i<MAX_CATEGORIES; ++i)
 180         {
 181             IXMLDOMElement *categoryElement = NULL;
 182
 183             if(!stats->categories[i].sName[0])
 184                 continue;
 185
 186             V_VT(&vValue) = VT_INT;
 187             V_INT(&vValue) = NODE_ELEMENT;
 188
 189             hr = IXMLDOMDocument_createNode(document, vValue, bstrCategory, NULL, &categoryNode);
 190
 191             if(SUCCEEDED(hr))
 192                 hr = IXMLDOMNode_QueryInterface(categoryNode, &IID_IXMLDOMElement, (void**)&categoryElement);
 193
 194             V_INT(&vValue) = i;
 195             if(SUCCEEDED(hr))
 196                 hr = IXMLDOMElement_setAttribute(categoryElement, bstrIndex, vValue);
 197
 198             if(SUCCEEDED(hr))
 199             {
 200                 V_VT(&vValue) = VT_BSTR;
 201                 V_BSTR(&vValue) = SysAllocString(stats->categories[i].sName);
 202                 if(!V_BSTR(&vValue))
 203                     hr = E_OUTOFMEMORY;
 204             }
 205
 206             if(SUCCEEDED(hr))
 207             {
 208                 TRACE("storing category %d: %s\n", i, debugstr_w(V_BSTR(&vValue)));
 209                 hr = IXMLDOMElement_setAttribute(categoryElement, bstrName, vValue);
 210             }
 211
 212             if (categoryElement)
 213                 IXMLDOMElement_Release(categoryElement);
 214
 215             SysFreeString(V_BSTR(&vValue));
 216
 217             if(SUCCEEDED(hr))
 218             {
 219                 for(j=0; j<MAX_STATS_PER_CATEGORY; ++j)
 220                 {
 221                     if(!stats->categories[i].stats[j].sName[0])
 222                         continue;
 223
 224                     V_VT(&vValue) = VT_INT;
 225                     V_INT(&vValue) = NODE_ELEMENT;
 226
 227                     hr = IXMLDOMDocument_createNode(document, vValue, bstrStatistic, NULL, &statisticsNode);
 228
 229                     if(SUCCEEDED(hr))
 230                         hr = IXMLDOMNode_QueryInterface(statisticsNode, &IID_IXMLDOMElement, (LPVOID*)&statisticsElement);
 231
 232                     V_INT(&vValue) = j;
 233                     if(SUCCEEDED(hr))
 234                         hr = IXMLDOMElement_setAttribute(statisticsElement, bstrIndex, vValue);
 235
 236                     if(SUCCEEDED(hr))
 237                     {
 238                         V_VT(&vValue) = VT_BSTR;
 239                         V_BSTR(&vValue) = SysAllocString(stats->categories[i].stats[j].sName);
 240                         if(!V_BSTR(&vValue))
 241                             hr = E_OUTOFMEMORY;
 242                     }
 243
 244                     if(SUCCEEDED(hr))
 245                     {
 246                         TRACE("    storing statistic %d: name: %s\n", j, debugstr_w(V_BSTR(&vValue)));
 247                         hr = IXMLDOMElement_setAttribute(statisticsElement, bstrName, vValue);
 248                         SysFreeString(V_BSTR(&vValue));
 249                     }
 250
 251                     if(SUCCEEDED(hr))
 252                     {
 253                         V_VT(&vValue) = VT_BSTR;
 254                         V_BSTR(&vValue) = SysAllocString(stats->categories[i].stats[j].sValue);
 255                         if(!V_BSTR(&vValue))
 256                             hr = E_OUTOFMEMORY;
 257                     }
 258
 259                     if(SUCCEEDED(hr))
 260                     {
 261                         TRACE("    storing statistic %d: name: %s\n", j, debugstr_w(V_BSTR(&vValue)));
 262                         hr = IXMLDOMElement_setAttribute(statisticsElement, bstrValue, vValue);
 263                         SysFreeString(V_BSTR(&vValue));
 264                     }
 265
 266                     if(SUCCEEDED(hr))
 267                         hr = IXMLDOMNode_appendChild(categoryNode, statisticsNode, &statisticsNode);
 268
 269                     IXMLDOMElement_Release(statisticsElement);
 270                     IXMLDOMNode_Release(statisticsNode);
 271                 }
 272             }
 273
 274             if(SUCCEEDED(hr))
 275                 hr = IXMLDOMElement_appendChild(root, categoryNode, &categoryNode);
 276
 277             IXMLDOMNode_Release(categoryNode);
 278
 279             if(FAILED(hr))
 280                 break;
 281         }
 282
 283     if(SUCCEEDED(hr))
 284         hr = IXMLDOMDocument_putref_documentElement(document, root);
 285
 286     IXMLDOMElement_Release(root);
 287
 288     TRACE("saving game statistics in %s file\n", debugstr_w(stats->sStatsFile));
 289     if(SUCCEEDED(hr))
 290         hr = GAMEUX_createStatsDirectory(stats->sStatsFile);
 291
 292     if(SUCCEEDED(hr))
 293         hr = IXMLDOMDocument_save(document, vStatsFilePath);
 294
 295     IXMLDOMDocument_Release(document);
 296
 297     SysFreeString(bstrValue);
 298     SysFreeString(bstrName);
 299     SysFreeString(bstrStatistic);
 300     SysFreeString(bstrIndex);
 301     SysFreeString(bstrCategory);
 302     SysFreeString(bstrStatistics);
 303     SysFreeString(V_BSTR(&vStatsFilePath));
 304     TRACE("ret=0x%x\n", hr);
 305     return hr;
 306 }
 307 /*******************************************************************************
 308  * GAMEUX_buildStatisticsFilePath
 309  * Creates path to file containing statistics of game with given id.
 310  *
 311  * Parameters:
 312  *  lpApplicationId                         [I]     application id of game,
 313  *                                                  as string
 314  *  lpStatisticsFile                        [O]     array where path will be
 315  *                                                  stored. Its size must be
 316  *                                                  at least MAX_PATH
 317  */
 318 static HRESULT GAMEUX_buildStatisticsFilePath(
 319         LPCWSTR lpApplicationId,
 320         LPWSTR lpStatisticsFile)
 321 {
 322     static const WCHAR sBackslash[] = {'\\',0};
 323     static const WCHAR sStatisticsDir[] = {'\\','M','i','c','r','o','s','o','f','t',
 324             '\\','W','i','n','d','o','w','s','\\','G','a','m','e','E','x','p',
 325             'l','o','r','e','r','\\','G','a','m','e','S','t','a','t','i','s',
 326             't','i','c','s','\\',0};
 327     static const WCHAR sDotGamestats[] = {'.','g','a','m','e','s','t','a','t','s',0};
 328
 329     HRESULT hr;
 330
 331     hr = SHGetFolderPathW(NULL, CSIDL_LOCAL_APPDATA, NULL, SHGFP_TYPE_CURRENT, lpStatisticsFile);
 332
 333     if(SUCCEEDED(hr))
 334     {
 335         lstrcatW(lpStatisticsFile, sStatisticsDir);
 336         lstrcatW(lpStatisticsFile, lpApplicationId);
 337         lstrcatW(lpStatisticsFile, sBackslash);
 338         lstrcatW(lpStatisticsFile, lpApplicationId);
 339         lstrcatW(lpStatisticsFile, sDotGamestats);
 340     }
 341
 342     return hr;
 343 }
 344 /*******************************************************************************
 345  * GAMEUX_getAppIdFromGDFPath
 346  *
 347  * Loads application identifier associated with given GDF binary.
 348  * Routine reads identifier from registry, so will fail if game
 349  * is not registered.
 350  *
 351  * Parameters:
 352  *  GDFBinaryPath                       [I]     path to gdf binary
 353  *  lpApplicationId                     [O]     place to store application id.
 354  *                                              must be at least 49 characters
 355  *                                              to store guid and termination 0
 356  */
 357 static HRESULT GAMEUX_getAppIdFromGDFPath(
 358         LPCWSTR GDFBinaryPath,
 359         LPWSTR lpApplicationId)
 360 {
 361     static const WCHAR sApplicationId[] =
 362             {'A','p','p','l','i','c','a','t','i','o','n','I','d',0};
 363
 364     HRESULT hr;
 365     GAME_INSTALL_SCOPE installScope;
 366     GUID instanceId;
 367     LPWSTR lpRegistryPath = NULL;
 368     HKEY hKey;
 369     DWORD dwLength = 49*sizeof(WCHAR);/* place for GUID */
 370
 371     TRACE("(%s, %p)\n", debugstr_w(GDFBinaryPath), lpApplicationId);
 372
 373     if(!GDFBinaryPath)
 374         return E_INVALIDARG;
 375
 376     installScope = GIS_CURRENT_USER;
 377     hr = GAMEUX_FindGameInstanceId(GDFBinaryPath, installScope, &instanceId);
 378
 379     if(hr == S_FALSE)
 380     {
 381         installScope = GIS_ALL_USERS;
 382         hr = GAMEUX_FindGameInstanceId(GDFBinaryPath, installScope, &instanceId);
 383     }
 384
 385     if(hr == S_FALSE)
 386         /* game not registered, so statistics cannot be used */
 387         hr = E_FAIL;
 388
 389     if(SUCCEEDED(hr))
 390         /* game is registered, let's read its application id from registry */
 391         hr = GAMEUX_buildGameRegistryPath(installScope, &instanceId, &lpRegistryPath);
 392
 393     if(SUCCEEDED(hr)) {
 394         hr = HRESULT_FROM_WIN32(RegOpenKeyExW(HKEY_LOCAL_MACHINE,
 395                 lpRegistryPath, 0, KEY_READ | KEY_WOW64_64KEY, &hKey));
 396         if(SUCCEEDED(hr)) {
 397             hr = HRESULT_FROM_WIN32(RegGetValueW(hKey,
 398                     NULL, sApplicationId, RRF_RT_REG_SZ,
 399                     NULL, lpApplicationId, &dwLength));
 400             RegCloseKey(hKey);
 401         }
 402     }
 403
 404     HeapFree(GetProcessHeap(), 0, lpRegistryPath);
 405
 406     TRACE("found app id: %s, return: %#x\n", debugstr_w(lpApplicationId), hr);
 407     return hr;
 408 }
 409 /*******************************************************************
 410  * GAMEUX_loadGameStatisticsFromFile
 411  * Helper function, loads game statistics from file and stores them
 412  * in the structure.
 413  *
 414  * Parameters:
 415  *  data                [I/O]   structure containing file name to
 416  *                              load and data fields to store data in
 417  */
 418 static HRESULT GAMEUX_loadStatisticsFromFile(struct GAMEUX_STATS *data)
 419 {
 420     static const WCHAR sStatistics[] = {'S','t','a','t','i','s','t','i','c','s',0};
 421     static const WCHAR sCategory[] = {'C','a','t','e','g','o','r','y',0};
 422     static const WCHAR sIndex[] = {'I','n','d','e','x',0};
 423     static const WCHAR sStatistic[] = {'S','t','a','t','i','s','t','i','c',0};
 424     static const WCHAR sName[] = {'N','a','m','e',0};
 425     static const WCHAR sValue[] = {'V','a','l','u','e',0};
 426
 427     HRESULT hr = S_OK;
 428     IXMLDOMDocument *document = NULL;
 429     IXMLDOMElement *root = NULL, *categoryElement, *statisticElement;
 430     IXMLDOMNode *categoryNode, *statisticNode;
 431     IXMLDOMNodeList *rootChildren = NULL, *categoryChildren;
 432     VARIANT vStatsFilePath, vValue;
 433     BSTR bstrStatistics = NULL, bstrCategory = NULL, bstrIndex = NULL,
 434         bstrStatistic = NULL, bstrName = NULL, bstrValue = NULL;
 435     VARIANT_BOOL isSuccessful =  VARIANT_FALSE;
 436     int i, j;
 437
 438     TRACE("(%p)\n", data);
 439
 440     V_VT(&vStatsFilePath) = VT_BSTR;
 441     V_BSTR(&vStatsFilePath) = SysAllocString(data->sStatsFile);
 442     if(!V_BSTR(&vStatsFilePath))
 443         hr = E_OUTOFMEMORY;
 444
 445     if(SUCCEEDED(hr))
 446         hr = CoCreateInstance(&CLSID_DOMDocument30, NULL, CLSCTX_INPROC_SERVER, &IID_IXMLDOMDocument, (void**)&document);
 447
 448     if(SUCCEEDED(hr))
 449     {
 450         bstrStatistics = SysAllocString(sStatistics);
 451         if(!bstrStatistics)
 452             hr = E_OUTOFMEMORY;
 453     }
 454
 455     if(SUCCEEDED(hr))
 456     {
 457         bstrCategory = SysAllocString(sCategory);
 458         if(!bstrCategory)
 459             hr = E_OUTOFMEMORY;
 460     }
 461
 462     if(SUCCEEDED(hr))
 463     {
 464         bstrIndex = SysAllocString(sIndex);
 465         if(!bstrIndex)
 466             hr = E_OUTOFMEMORY;
 467     }
 468
 469     if(SUCCEEDED(hr))
 470     {
 471         bstrStatistic = SysAllocString(sStatistic);
 472         if(!bstrStatistic)
 473             hr = E_OUTOFMEMORY;
 474     }
 475
 476     if(SUCCEEDED(hr))
 477     {
 478         bstrName = SysAllocString(sName);
 479         if(!bstrName)
 480             hr = E_OUTOFMEMORY;
 481     }
 482
 483     if(SUCCEEDED(hr))
 484     {
 485         bstrValue = SysAllocString(sValue);
 486         if(!bstrValue)
 487             hr = E_OUTOFMEMORY;
 488     }
 489
 490     if(SUCCEEDED(hr))
 491         hr = IXMLDOMDocument_load(document, vStatsFilePath, &isSuccessful);
 492
 493     if(hr == S_OK && isSuccessful != VARIANT_TRUE)
 494         hr = S_FALSE;
 495
 496     if( hr == S_OK )
 497         hr = IXMLDOMDocument_get_documentElement(document, &root);
 498
 499     if(hr == S_OK)
 500         hr = IXMLDOMElement_get_childNodes(root, &rootChildren);
 501
 502     if(hr == S_OK)
 503     {
 504         hr = S_OK;
 505         while(hr == S_OK)
 506         {
 507             hr = IXMLDOMNodeList_nextNode(rootChildren, &categoryNode);
 508
 509             if(hr == S_OK)
 510             {
 511                 hr = IXMLDOMNode_QueryInterface(categoryNode, &IID_IXMLDOMElement, (LPVOID*)&categoryElement);
 512
 513                 if(SUCCEEDED(hr))
 514                 {
 515                     hr = IXMLDOMElement_getAttribute(categoryElement, bstrIndex, &vValue);
 516                     if( hr == S_OK && V_VT(&vValue) != VT_BSTR)
 517                         hr = E_FAIL;
 518
 519                     if(SUCCEEDED(hr))
 520                     {
 521                         i = StrToIntW(V_BSTR(&vValue));
 522                         hr = IXMLDOMElement_getAttribute(categoryElement, bstrName, &vValue);
 523                         if( hr == S_OK && V_VT(&vValue) != VT_BSTR)
 524                             hr = E_FAIL;
 525                     }
 526
 527                     if(SUCCEEDED(hr))
 528                     {
 529                         lstrcpynW(data->categories[i].sName, V_BSTR(&vValue), MAX_CATEGORY_LENGTH);
 530                         TRACE("category %d name %s\n", i, debugstr_w(data->categories[i].sName));
 531                         hr = IXMLDOMElement_get_childNodes(categoryElement, &categoryChildren);
 532                     }
 533
 534                     if(SUCCEEDED(hr))
 535                     {
 536                         hr = S_OK;
 537                         while(hr == S_OK)
 538                         {
 539                             hr = IXMLDOMNodeList_nextNode(categoryChildren, &statisticNode);
 540
 541                             if(hr == S_OK)
 542                             {
 543                                 hr = IXMLDOMNode_QueryInterface(statisticNode, &IID_IXMLDOMElement, (LPVOID*)&statisticElement);
 544
 545                                 if(SUCCEEDED(hr))
 546                                 {
 547                                     hr = IXMLDOMElement_getAttribute(statisticElement, bstrIndex, &vValue);
 548                                     if( hr == S_OK && V_VT(&vValue) != VT_BSTR)
 549                                         hr = E_FAIL;
 550
 551                                     if(SUCCEEDED(hr))
 552                                     {
 553                                         j = StrToIntW(V_BSTR(&vValue));
 554                                         hr = IXMLDOMElement_getAttribute(statisticElement, bstrName, &vValue);
 555                                         if( hr == S_OK && V_VT(&vValue) != VT_BSTR)
 556                                             hr = E_FAIL;
 557                                     }
 558
 559                                     if(SUCCEEDED(hr))
 560                                     {
 561                                         lstrcpynW(data->categories[i].stats[j].sName, V_BSTR(&vValue), MAX_NAME_LENGTH);
 562                                         hr = IXMLDOMElement_getAttribute(statisticElement, bstrValue, &vValue);
 563                                         if( hr == S_OK && V_VT(&vValue) != VT_BSTR)
 564                                             hr = E_FAIL;
 565                                     }
 566
 567                                     if(SUCCEEDED(hr))
 568                                     {
 569                                         lstrcpynW(data->categories[i].stats[j].sValue, V_BSTR(&vValue), MAX_VALUE_LENGTH);
 570                                         TRACE("statistic %d name %s value %s\n", j,
 571                                               debugstr_w(data->categories[i].stats[j].sName),
 572                                               debugstr_w(data->categories[i].stats[j].sValue));
 573                                     }
 574                                     IXMLDOMElement_Release(statisticElement);
 575                                 }
 576
 577                                 IXMLDOMNode_Release(statisticNode);
 578                             }
 579                         }
 580
 581                         if(SUCCEEDED(hr))
 582                             hr = S_OK;
 583                     }
 584                     IXMLDOMElement_Release(categoryElement);
 585                 }
 586
 587                 IXMLDOMNode_Release(categoryNode);
 588             }
 589         }
 590         if(SUCCEEDED(hr))
 591             hr = S_OK;
 592     }
 593
 594     if(rootChildren) IXMLDOMNodeList_Release(rootChildren);
 595     if(root) IXMLDOMElement_Release(root);
 596     if(document) IXMLDOMDocument_Release(document);
 597
 598     SysFreeString(bstrValue);
 599     SysFreeString(bstrName);
 600     SysFreeString(bstrStatistic);
 601     SysFreeString(bstrIndex);
 602     SysFreeString(bstrCategory);
 603     SysFreeString(bstrStatistics);
 604     SysFreeString(V_BSTR(&vStatsFilePath));
 605     return hr;
 606 }
 607 /*******************************************************************
 608  * GAMEUX_loadGameStatistics
 609  *
 610  * Helper function which loads game statistics associated with game
 611  * into interface's internal structures
 612  *
 613  * Parameters:
 614  *  pStats              [O]     structure which will receive data
 615  *  sGameId             [I]     application instance Id, stored as string
 616  *                              to avoid additional conversions
 617  *  openType            [I]     allowed ways of opening statistics
 618  *  pOpenResult         [O]     way used to open statistics
 619  *
 620  */
 621 static HRESULT GAMEUX_loadGameStatistics(struct GAMEUX_STATS *pStats,
 622         LPWSTR sGameId,
 623         GAMESTATS_OPEN_TYPE openType,
 624         GAMESTATS_OPEN_RESULT* pOpenResult)
 625 {
 626     HRESULT hr;
 627     TRACE("(%p, %s, %d, %p)\n", pStats, debugstr_w(sGameId), openType, pOpenResult);
 628
 629     hr = GAMEUX_buildStatisticsFilePath(sGameId, pStats->sStatsFile);
 630     if (FAILED(hr)) return hr;
 631
 632     hr = GAMEUX_loadStatisticsFromFile(pStats);
 633     TRACE("ldstats finished, res: %#x\n", hr);
 634     if(hr == S_OK)
 635     {
 636         *pOpenResult = GAMESTATS_OPEN_OPENED;
 637     }
 638     else if(hr == S_FALSE && openType == GAMESTATS_OPEN_OPENORCREATE) /* file does not exist */
 639     {
 640         /* create new statistics, not yet connected with file */
 641         ZeroMemory(pStats->categories, sizeof(pStats->categories));
 642         *pOpenResult = GAMESTATS_OPEN_CREATED;
 643         hr = S_OK;
 644     }
 645     else
 646         hr = HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
 647
 648     TRACE("openResult=%#x ret=%#x\n", *pOpenResult, hr);
 649     return hr;
 650 }
 651  /*******************************************************************
 652  * IGameStatistics implementation
 653  */
 654 typedef struct _GameStatisticsImpl
 655 {
 656     IGameStatistics IGameStatistics_iface;
 657     LONG ref;
 658     struct GAMEUX_STATS stats;
 659 } GameStatisticsImpl;
 660
 661 static inline GameStatisticsImpl *impl_from_IGameStatistics( IGameStatistics *iface )
 662 {
 663     return CONTAINING_RECORD(iface, GameStatisticsImpl, IGameStatistics_iface);
 664 }
 665
 666 static HRESULT WINAPI GameStatisticsImpl_QueryInterface(
 667         IGameStatistics *iface,
 668         REFIID riid,
 669         void **ppvObject)
 670 {
 671     GameStatisticsImpl *This = impl_from_IGameStatistics( iface );
 672
 673     TRACE("%p %s %p\n", This, debugstr_guid( riid ), ppvObject );
 674
 675     *ppvObject = NULL;
 676
 677     if ( IsEqualGUID( riid, &IID_IUnknown ) ||
 678          IsEqualGUID( riid, &IID_IGameStatistics ) )
 679     {
 680         *ppvObject = iface;
 681     }
 682     else
 683     {
 684         FIXME("interface %s not implemented\n", debugstr_guid(riid));
 685         return E_NOINTERFACE;
 686     }
 687
 688     IGameStatistics_AddRef( iface );
 689     return S_OK;
 690 }
 691
 692 static ULONG WINAPI GameStatisticsImpl_AddRef(IGameStatistics *iface)
 693 {
 694     GameStatisticsImpl *This = impl_from_IGameStatistics( iface );
 695     LONG ref;
 696
 697     ref = InterlockedIncrement(&This->ref);
 698
 699     TRACE("(%p): ref=%d\n", This, ref);
 700     return ref;
 701 }
 702
 703 static ULONG WINAPI GameStatisticsImpl_Release(IGameStatistics *iface)
 704 {
 705     GameStatisticsImpl *This = impl_from_IGameStatistics( iface );
 706     LONG ref;
 707
 708     ref = InterlockedDecrement( &This->ref );
 709     TRACE("(%p): ref=%d\n", This, ref);
 710
 711     if ( ref == 0 )
 712     {
 713         TRACE("freeing IGameStatistics\n");
 714         HeapFree( GetProcessHeap(), 0, This );
 715     }
 716
 717     return ref;
 718 }
 719
 720 static HRESULT WINAPI GameStatisticsImpl_GetMaxCategoryLength(
 721     IGameStatistics *iface,
 722     UINT *cch)
 723 {
 724     TRACE("(%p, %p)\n", iface, cch);
 725     if(!cch)
 726         return E_INVALIDARG;
 727
 728     *cch = MAX_CATEGORY_LENGTH;
 729     return S_OK;
 730 }
 731
 732 static HRESULT WINAPI GameStatisticsImpl_GetMaxNameLength(
 733     IGameStatistics *iface,
 734     UINT *cch)
 735 {
 736     TRACE("(%p, %p)\n", iface, cch);
 737     if(!cch)
 738         return E_INVALIDARG;
 739
 740     *cch = MAX_NAME_LENGTH;
 741     return S_OK;
 742 }
 743
 744 static HRESULT WINAPI GameStatisticsImpl_GetMaxValueLength(
 745     IGameStatistics *iface,
 746     UINT *cch)
 747 {
 748     TRACE("(%p, %p)\n", iface, cch);
 749     if(!cch)
 750         return E_INVALIDARG;
 751
 752     *cch = MAX_VALUE_LENGTH;
 753     return S_OK;
 754 }
 755
 756 static HRESULT WINAPI GameStatisticsImpl_GetMaxCategories(
 757     IGameStatistics *iface,
 758     WORD *pMax)
 759 {
 760     TRACE("(%p, %p)\n", iface, pMax);
 761     if(!pMax)
 762         return E_INVALIDARG;
 763
 764     *pMax = MAX_CATEGORIES;
 765     return S_OK;
 766 }
 767
 768 static HRESULT WINAPI GameStatisticsImpl_GetMaxStatsPerCategory(
 769     IGameStatistics *iface,
 770     WORD *pMax)
 771 {
 772     TRACE("(%p, %p)\n", iface, pMax);
 773     if(!pMax)
 774         return E_INVALIDARG;
 775
 776     *pMax = MAX_STATS_PER_CATEGORY;
 777     return S_OK;
 778 }
 779
 780 static HRESULT WINAPI GameStatisticsImpl_SetCategoryTitle(
 781     IGameStatistics *iface,
 782     WORD categoryIndex,
 783     LPCWSTR title)
 784 {
 785     HRESULT hr = S_OK;
 786     DWORD dwLength;
 787     GameStatisticsImpl *This = impl_from_IGameStatistics(iface);
 788
 789     TRACE("(%p, %d, %s)\n", This, categoryIndex, debugstr_w(title));
 790
 791     if(!title || categoryIndex >= MAX_CATEGORIES)
 792         return E_INVALIDARG;
 793
 794     dwLength = lstrlenW(title);
 795
 796     if(dwLength > MAX_CATEGORY_LENGTH)
 797     {
 798         hr = S_FALSE;
 799         dwLength = MAX_CATEGORY_LENGTH;
 800     }
 801
 802     lstrcpynW(This->stats.categories[categoryIndex].sName,
 803               title, dwLength+1);
 804
 805     return hr;
 806 }
 807
 808 static HRESULT WINAPI GameStatisticsImpl_GetCategoryTitle(
 809     IGameStatistics *iface,
 810     WORD categoryIndex,
 811     LPWSTR *pTitle)
 812 {
 813     HRESULT hr = S_OK;
 814     LONG nLength;
 815     GameStatisticsImpl *This = impl_from_IGameStatistics(iface);
 816
 817     TRACE("%p, %d, %p\n", This, categoryIndex, pTitle);
 818
 819     if(!pTitle)
 820         return E_INVALIDARG;
 821     *pTitle = NULL;
 822
 823     if (categoryIndex >= MAX_CATEGORIES)
 824         hr = E_INVALIDARG;
 825
 826     if(SUCCEEDED(hr))
 827     {
 828         nLength = lstrlenW(This->stats.categories[categoryIndex].sName);
 829         if(nLength != 0)
 830         {
 831             *pTitle = CoTaskMemAlloc(sizeof(WCHAR)*(nLength+1));
 832             lstrcpyW(*pTitle, This->stats.categories[categoryIndex].sName);
 833         }
 834     }
 835
 836     return hr;
 837 }
 838
 839 static HRESULT WINAPI GameStatisticsImpl_GetStatistic(
 840     IGameStatistics *iface,
 841     WORD categoryIndex,
 842     WORD statIndex,
 843     LPWSTR *pName,
 844     LPWSTR *pValue)
 845 {
 846     HRESULT hr = S_OK;
 847     LONG nLength;
 848     GameStatisticsImpl *This = impl_from_IGameStatistics(iface);
 849
 850     TRACE("%p, %d,%d, %p, %p\n", This, categoryIndex, statIndex, pName, pValue);
 851
 852     if(!pName || !pValue)
 853         return E_INVALIDARG;
 854
 855     *pName = NULL;
 856     *pValue = NULL;
 857
 858     if(categoryIndex >= MAX_CATEGORIES || statIndex >= MAX_STATS_PER_CATEGORY)
 859         hr = E_INVALIDARG;
 860
 861     if(SUCCEEDED(hr))
 862     {
 863         nLength = lstrlenW(This->stats.categories[categoryIndex].stats[statIndex].sName);
 864         if(nLength != 0)
 865         {
 866             *pName = CoTaskMemAlloc(sizeof(WCHAR)*(nLength+1));
 867             if(!(*pName))
 868                 hr = E_OUTOFMEMORY;
 869             else
 870                 lstrcpyW(*pName, This->stats.categories[categoryIndex].stats[statIndex].sName);
 871         }
 872     }
 873
 874     if(SUCCEEDED(hr))
 875     {
 876         nLength = lstrlenW(This->stats.categories[categoryIndex].stats[statIndex].sValue);
 877         if(nLength != 0)
 878         {
 879             *pValue = CoTaskMemAlloc(sizeof(WCHAR)*(nLength+1));
 880             if(!(*pValue))
 881                 hr = E_OUTOFMEMORY;
 882             else
 883                 lstrcpyW(*pValue, This->stats.categories[categoryIndex].stats[statIndex].sValue);
 884         }
 885     }
 886
 887     TRACE("returning pair; %s => %s\n", debugstr_w(*pName), debugstr_w(*pValue));
 888     return hr;
 889 }
 890
 891 static HRESULT WINAPI GameStatisticsImpl_SetStatistic(
 892     IGameStatistics *iface,
 893     WORD categoryIndex,
 894     WORD statIndex,
 895     LPCWSTR name,
 896     LPCWSTR value)
 897 {
 898     HRESULT hr = S_OK;
 899     DWORD dwNameLen, dwValueLen;
 900     GameStatisticsImpl *This = impl_from_IGameStatistics(iface);
 901
 902     TRACE("(%p, %d, %d, %s, %s)\n", This, categoryIndex, statIndex,
 903           debugstr_w(name), debugstr_w(value));
 904
 905     if(!name)
 906         return S_FALSE;
 907
 908     if(categoryIndex >= MAX_CATEGORIES || statIndex >= MAX_STATS_PER_CATEGORY)
 909         return E_INVALIDARG;
 910
 911     dwNameLen = lstrlenW(name);
 912
 913     if(dwNameLen > MAX_NAME_LENGTH)
 914     {
 915         hr = S_FALSE;
 916         dwNameLen = MAX_NAME_LENGTH;
 917     }
 918
 919     lstrcpynW(This->stats.categories[categoryIndex].stats[statIndex].sName,
 920               name, dwNameLen+1);
 921
 922     if(value)
 923     {
 924         dwValueLen = lstrlenW(value);
 925
 926         if(dwValueLen > MAX_VALUE_LENGTH)
 927         {
 928             hr = S_FALSE;
 929             dwValueLen = MAX_VALUE_LENGTH;
 930         }
 931
 932         lstrcpynW(This->stats.categories[categoryIndex].stats[statIndex].sValue,
 933                   value, dwValueLen+1);
 934     }
 935     else
 936         /* Windows allows passing NULL as value */
 937         This->stats.categories[categoryIndex].stats[statIndex].sValue[0] = 0;
 938
 939     return hr;
 940 }
 941
 942 static HRESULT WINAPI GameStatisticsImpl_Save(
 943     IGameStatistics *iface,
 944     BOOL trackChanges)
 945 {
 946     GameStatisticsImpl *This = impl_from_IGameStatistics(iface);
 947
 948     TRACE("(%p, %d)\n", This, trackChanges);
 949
 950     if(trackChanges)
 951         FIXME("tracking changes not yet implemented\n");
 952
 953     return GAMEUX_updateStatisticsFile(&This->stats);
 954 }
 955
 956 static HRESULT WINAPI GameStatisticsImpl_SetLastPlayedCategory(
 957     IGameStatistics *iface,
 958     UINT categoryIndex)
 959 {
 960     FIXME("stub\n");
 961     return E_NOTIMPL;
 962 }
 963
 964 static HRESULT WINAPI GameStatisticsImpl_GetLastPlayedCategory(
 965     IGameStatistics *iface,
 966     UINT *pCategoryIndex)
 967 {
 968     FIXME("stub\n");
 969     return E_NOTIMPL;
 970 }
 971
 972 static const struct IGameStatisticsVtbl GameStatisticsImplVtbl =
 973 {
 974     GameStatisticsImpl_QueryInterface,
 975     GameStatisticsImpl_AddRef,
 976     GameStatisticsImpl_Release,
 977     GameStatisticsImpl_GetMaxCategoryLength,
 978     GameStatisticsImpl_GetMaxNameLength,
 979     GameStatisticsImpl_GetMaxValueLength,
 980     GameStatisticsImpl_GetMaxCategories,
 981     GameStatisticsImpl_GetMaxStatsPerCategory,
 982     GameStatisticsImpl_SetCategoryTitle,
 983     GameStatisticsImpl_GetCategoryTitle,
 984     GameStatisticsImpl_GetStatistic,
 985     GameStatisticsImpl_SetStatistic,
 986     GameStatisticsImpl_Save,
 987     GameStatisticsImpl_SetLastPlayedCategory,
 988     GameStatisticsImpl_GetLastPlayedCategory
 989 };
 990
 991
 992 static HRESULT create_IGameStatistics(GameStatisticsImpl** ppStats)
 993 {
 994     TRACE("(%p)\n", ppStats);
 995
 996     *ppStats = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(**ppStats));
 997     if(!(*ppStats))
 998         return E_OUTOFMEMORY;
 999
1000     (*ppStats)->IGameStatistics_iface.lpVtbl = &GameStatisticsImplVtbl;
1001     (*ppStats)->ref = 1;
1002
1003     TRACE("returning coclass: %p\n", *ppStats);
1004     return S_OK;
1005 }
1006
1007 /*******************************************************************************
1008  * IGameStatisticsMgr implementation
1009  */
1010 typedef struct _GameStatisticsMgrImpl
1011 {
1012     IGameStatisticsMgr IGameStatisticsMgr_iface;
1013     LONG ref;
1014 } GameStatisticsMgrImpl;
1015
1016 static inline GameStatisticsMgrImpl *impl_from_IGameStatisticsMgr( IGameStatisticsMgr *iface )
1017 {
1018     return CONTAINING_RECORD(iface, GameStatisticsMgrImpl, IGameStatisticsMgr_iface);
1019 }
1020
1021
1022 static HRESULT WINAPI GameStatisticsMgrImpl_QueryInterface(
1023         IGameStatisticsMgr *iface,
1024         REFIID riid,
1025         void **ppvObject)
1026 {
1027     GameStatisticsMgrImpl *This = impl_from_IGameStatisticsMgr( iface );
1028
1029     TRACE("%p %s %p\n", This, debugstr_guid( riid ), ppvObject );
1030
1031     *ppvObject = NULL;
1032
1033     if(IsEqualGUID(riid, &IID_IUnknown) ||
1034        IsEqualGUID(riid, &IID_IGameStatisticsMgr) )
1035     {
1036         *ppvObject = iface;
1037     }
1038     else
1039     {
1040         FIXME("interface %s not implemented\n", debugstr_guid(riid));
1041         return E_NOINTERFACE;
1042     }
1043
1044     IGameStatisticsMgr_AddRef( iface );
1045     return S_OK;
1046 }
1047
1048 static ULONG WINAPI GameStatisticsMgrImpl_AddRef(IGameStatisticsMgr *iface)
1049 {
1050     GameStatisticsMgrImpl *This = impl_from_IGameStatisticsMgr( iface );
1051     LONG ref;
1052
1053     ref = InterlockedIncrement(&This->ref);
1054
1055     TRACE("(%p): ref=%d\n", This, ref);
1056     return ref;
1057 }
1058
1059 static ULONG WINAPI GameStatisticsMgrImpl_Release(IGameStatisticsMgr *iface)
1060 {
1061     GameStatisticsMgrImpl *This = impl_from_IGameStatisticsMgr( iface );
1062     LONG ref;
1063
1064     ref = InterlockedDecrement(&This->ref);
1065     TRACE("(%p): ref=%d\n", This, ref);
1066
1067     if ( ref == 0 )
1068     {
1069         TRACE("freeing GameStatistics object\n");
1070         HeapFree( GetProcessHeap(), 0, This);
1071     }
1072
1073     return ref;
1074 }
1075
1076 static HRESULT STDMETHODCALLTYPE GameStatisticsMgrImpl_GetGameStatistics(
1077         IGameStatisticsMgr* iface,
1078         LPCWSTR GDFBinaryPath,
1079         GAMESTATS_OPEN_TYPE openType,
1080         GAMESTATS_OPEN_RESULT *pOpenResult,
1081         IGameStatistics **ppiStats)
1082 {
1083     HRESULT hr;
1084     WCHAR lpApplicationId[49];
1085     GameStatisticsImpl *statisticsImpl = NULL;
1086     IGameStatistics *output_iface;
1087
1088     TRACE("(%p, %s, 0x%x, %p, %p)\n", iface, debugstr_w(GDFBinaryPath), openType, pOpenResult, ppiStats);
1089
1090     hr = GAMEUX_getAppIdFromGDFPath(GDFBinaryPath, lpApplicationId);
1091
1092     if(SUCCEEDED(hr))
1093         hr = create_IGameStatistics(&statisticsImpl);
1094
1095     if(SUCCEEDED(hr))
1096     {
1097         output_iface = &statisticsImpl->IGameStatistics_iface;
1098         hr = GAMEUX_buildStatisticsFilePath(lpApplicationId, statisticsImpl->stats.sStatsFile);
1099     }
1100
1101     if(SUCCEEDED(hr))
1102         hr = GAMEUX_loadGameStatistics(&statisticsImpl->stats, lpApplicationId, openType, pOpenResult);
1103
1104     if(SUCCEEDED(hr))
1105         *ppiStats = output_iface;
1106     else
1107     {
1108         HeapFree(GetProcessHeap(), 0, statisticsImpl);
1109         *ppiStats = NULL;
1110     }
1111
1112     return hr;
1113 }
1114
1115 static HRESULT STDMETHODCALLTYPE GameStatisticsMgrImpl_RemoveGameStatistics(
1116         IGameStatisticsMgr* iface,
1117         LPCWSTR GDFBinaryPath)
1118 {
1119     HRESULT hr;
1120     WCHAR lpApplicationId[49];
1121     WCHAR sStatsFile[MAX_PATH];
1122
1123     TRACE("(%p, %s)\n", iface, debugstr_w(GDFBinaryPath));
1124
1125     hr = GAMEUX_getAppIdFromGDFPath(GDFBinaryPath, lpApplicationId);
1126
1127     if(SUCCEEDED(hr))
1128         hr = GAMEUX_buildStatisticsFilePath(lpApplicationId, sStatsFile);
1129
1130     if(SUCCEEDED(hr))
1131         hr = DeleteFileW(sStatsFile) ? S_OK : HRESULT_FROM_WIN32(GetLastError());
1132
1133     return hr;
1134 }
1135
1136 static const struct IGameStatisticsMgrVtbl GameStatisticsMgrImplVtbl =
1137 {
1138     GameStatisticsMgrImpl_QueryInterface,
1139     GameStatisticsMgrImpl_AddRef,
1140     GameStatisticsMgrImpl_Release,
1141     GameStatisticsMgrImpl_GetGameStatistics,
1142     GameStatisticsMgrImpl_RemoveGameStatistics,
1143 };
1144
1145 HRESULT GameStatistics_create(
1146         IUnknown *pUnkOuter,
1147         IUnknown **ppObj)
1148 {
1149     GameStatisticsMgrImpl *pGameStatistics;
1150
1151     TRACE("(%p, %p)\n", pUnkOuter, ppObj);
1152
1153     pGameStatistics = HeapAlloc( GetProcessHeap(), 0, sizeof (*pGameStatistics) );
1154
1155     if( !pGameStatistics )
1156         return E_OUTOFMEMORY;
1157
1158     pGameStatistics->IGameStatisticsMgr_iface.lpVtbl = &GameStatisticsMgrImplVtbl;
1159     pGameStatistics->ref = 1;
1160
1161     *ppObj = (IUnknown*)&pGameStatistics->IGameStatisticsMgr_iface;
1162
1163     TRACE("returning iface %p\n", *ppObj);
1164     return S_OK;
1165 }