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, *categoryElement, *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
 180     if(SUCCEEDED(hr))
 181         for(i=0; i<MAX_CATEGORIES; ++i)
 182         {
 183             if(lstrlenW(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, (LPVOID*)&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             SysFreeString(V_BSTR(&vValue));
 213
 214             if(SUCCEEDED(hr))
 215             {
 216                 for(j=0; j<MAX_STATS_PER_CATEGORY; ++j)
 217                 {
 218                     if(lstrlenW(stats->categories[i].stats[j].sName)==0)
 219                         continue;
 220
 221                     V_VT(&vValue) = VT_INT;
 222                     V_INT(&vValue) = NODE_ELEMENT;
 223
 224                     hr = IXMLDOMDocument_createNode(document, vValue, bstrStatistic, NULL, &statisticsNode);
 225
 226                     if(SUCCEEDED(hr))
 227                         hr = IXMLDOMNode_QueryInterface(statisticsNode, &IID_IXMLDOMElement, (LPVOID*)&statisticsElement);
 228
 229                     V_INT(&vValue) = j;
 230                     if(SUCCEEDED(hr))
 231                         hr = IXMLDOMElement_setAttribute(statisticsElement, bstrIndex, vValue);
 232
 233                     if(SUCCEEDED(hr))
 234                     {
 235                         V_VT(&vValue) = VT_BSTR;
 236                         V_BSTR(&vValue) = SysAllocString(stats->categories[i].stats[j].sName);
 237                         if(!V_BSTR(&vValue))
 238                             hr = E_OUTOFMEMORY;
 239                     }
 240
 241                     if(SUCCEEDED(hr))
 242                     {
 243                         TRACE("    storing statistic %d: name: %s\n", j, debugstr_w(V_BSTR(&vValue)));
 244                         hr = IXMLDOMElement_setAttribute(statisticsElement, bstrName, vValue);
 245                     }
 246
 247                     SysFreeString(V_BSTR(&vValue));
 248
 249                     if(SUCCEEDED(hr))
 250                     {
 251                         V_VT(&vValue) = VT_BSTR;
 252                         V_BSTR(&vValue) = SysAllocString(stats->categories[i].stats[j].sValue);
 253                         if(!V_BSTR(&vValue))
 254                             hr = E_OUTOFMEMORY;
 255                     }
 256
 257                     if(SUCCEEDED(hr))
 258                     {
 259                         TRACE("    storing statistic %d: name: %s\n", j, debugstr_w(V_BSTR(&vValue)));
 260                         hr = IXMLDOMElement_setAttribute(statisticsElement, bstrValue, vValue);
 261                     }
 262
 263                     SysFreeString(V_BSTR(&vValue));
 264
 265                     if(SUCCEEDED(hr))
 266                         hr = IXMLDOMElement_appendChild(categoryNode, statisticsNode, &statisticsNode);
 267
 268                     IXMLDOMElement_Release(statisticsElement);
 269                     IXMLDOMNode_Release(statisticsNode);
 270                 }
 271             }
 272
 273             if(SUCCEEDED(hr))
 274                 hr = IXMLDOMElement_appendChild(root, categoryNode, &categoryNode);
 275
 276             IXMLDOMElement_Release(categoryElement);
 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 contaning 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. It's 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;
 368     DWORD dwLength = 49*sizeof(WCHAR);/* place for GUID */
 369
 370     TRACE("(%s, %p)\n", debugstr_w(GDFBinaryPath), lpApplicationId);
 371
 372     if(!GDFBinaryPath)
 373         return E_INVALIDARG;
 374
 375     installScope = GIS_CURRENT_USER;
 376     hr = GAMEUX_FindGameInstanceId(GDFBinaryPath, installScope, &instanceId);
 377
 378     if(hr == S_FALSE)
 379     {
 380         installScope = GIS_ALL_USERS;
 381         hr = GAMEUX_FindGameInstanceId(GDFBinaryPath, installScope, &instanceId);
 382     }
 383
 384     if(hr == S_FALSE)
 385         /* game not registered, so statistics cannot be used */
 386         hr = E_FAIL;
 387
 388     if(SUCCEEDED(hr))
 389         /* game is registered, let's read it's application id from registry */
 390         hr = GAMEUX_buildGameRegistryPath(installScope, &instanceId, &lpRegistryPath);
 391
 392     if(SUCCEEDED(hr))
 393         hr = HRESULT_FROM_WIN32(RegGetValueW(HKEY_LOCAL_MACHINE,
 394                 lpRegistryPath, sApplicationId, RRF_RT_REG_SZ,
 395                 NULL, lpApplicationId, &dwLength));
 396
 397     HeapFree(GetProcessHeap(), 0, lpRegistryPath);
 398
 399     TRACE("found app id: %s, return: %#x\n", debugstr_w(lpApplicationId), hr);
 400     return hr;
 401 }
 402 /*******************************************************************
 403  * GAMEUX_loadGameStatisticsFromFile
 404  * Helper function, loads game statistics from file and stores them
 405  * in the structure.
 406  *
 407  * Parameters:
 408  *  data                [I/O]   structure containing file name to
 409  *                              load and data fields to store data in
 410  */
 411 static HRESULT GAMEUX_loadStatisticsFromFile(struct GAMEUX_STATS *data)
 412 {
 413     static const WCHAR sStatistics[] = {'S','t','a','t','i','s','t','i','c','s',0};
 414     static const WCHAR sCategory[] = {'C','a','t','e','g','o','r','y',0};
 415     static const WCHAR sIndex[] = {'I','n','d','e','x',0};
 416     static const WCHAR sStatistic[] = {'S','t','a','t','i','s','t','i','c',0};
 417     static const WCHAR sName[] = {'N','a','m','e',0};
 418     static const WCHAR sValue[] = {'V','a','l','u','e',0};
 419
 420     HRESULT hr = S_OK;
 421     IXMLDOMDocument *document = NULL;
 422     IXMLDOMElement *root = NULL, *categoryElement, *statisticElement;
 423     IXMLDOMNode *categoryNode, *statisticNode;
 424     IXMLDOMNodeList *rootChildren = NULL, *categoryChildren;
 425     VARIANT vStatsFilePath, vValue;
 426     BSTR bstrStatistics = NULL, bstrCategory = NULL, bstrIndex = NULL,
 427         bstrStatistic = NULL, bstrName = NULL, bstrValue = NULL;
 428     VARIANT_BOOL isSuccessful =  VARIANT_FALSE;
 429     int i, j;
 430
 431     TRACE("(%p)\n", data);
 432
 433     V_VT(&vStatsFilePath) = VT_BSTR;
 434     V_BSTR(&vStatsFilePath) = SysAllocString(data->sStatsFile);
 435     if(!V_BSTR(&vStatsFilePath))
 436         hr = E_OUTOFMEMORY;
 437
 438     if(SUCCEEDED(hr))
 439         hr = CoCreateInstance(&CLSID_DOMDocument30, NULL, CLSCTX_INPROC_SERVER, &IID_IXMLDOMDocument, (void**)&document);
 440
 441     if(SUCCEEDED(hr))
 442     {
 443         bstrStatistics = SysAllocString(sStatistics);
 444         if(!bstrStatistics)
 445             hr = E_OUTOFMEMORY;
 446     }
 447
 448     if(SUCCEEDED(hr))
 449     {
 450         bstrCategory = SysAllocString(sCategory);
 451         if(!bstrCategory)
 452             hr = E_OUTOFMEMORY;
 453     }
 454
 455     if(SUCCEEDED(hr))
 456     {
 457         bstrIndex = SysAllocString(sIndex);
 458         if(!bstrIndex)
 459             hr = E_OUTOFMEMORY;
 460     }
 461
 462     if(SUCCEEDED(hr))
 463     {
 464         bstrStatistic = SysAllocString(sStatistic);
 465         if(!bstrStatistic)
 466             hr = E_OUTOFMEMORY;
 467     }
 468
 469     if(SUCCEEDED(hr))
 470     {
 471         bstrName = SysAllocString(sName);
 472         if(!bstrName)
 473             hr = E_OUTOFMEMORY;
 474     }
 475
 476     if(SUCCEEDED(hr))
 477     {
 478         bstrValue = SysAllocString(sValue);
 479         if(!bstrValue)
 480             hr = E_OUTOFMEMORY;
 481     }
 482
 483     if(SUCCEEDED(hr))
 484         hr = IXMLDOMDocument_load(document, vStatsFilePath, &isSuccessful);
 485
 486     if(hr == S_OK && isSuccessful != VARIANT_TRUE)
 487         hr = S_FALSE;
 488
 489     if( hr == S_OK )
 490         hr = IXMLDOMDocument_get_documentElement(document, &root);
 491
 492     if(hr == S_OK)
 493         hr = IXMLDOMElement_get_childNodes(root, &rootChildren);
 494
 495     if(hr == S_OK)
 496     {
 497         hr = S_OK;
 498         while(hr == S_OK)
 499         {
 500             hr = IXMLDOMNodeList_nextNode(rootChildren, &categoryNode);
 501
 502             if(hr == S_OK)
 503             {
 504                 hr = IXMLDOMNode_QueryInterface(categoryNode, &IID_IXMLDOMElement, (LPVOID*)&categoryElement);
 505
 506                 if(SUCCEEDED(hr))
 507                 {
 508                     hr = IXMLDOMElement_getAttribute(categoryElement, bstrIndex, &vValue);
 509                     if( hr == S_OK && V_VT(&vValue) != VT_BSTR)
 510                         hr = E_FAIL;
 511
 512                     if(SUCCEEDED(hr))
 513                     {
 514                         i = StrToIntW(V_BSTR(&vValue));
 515                         hr = IXMLDOMElement_getAttribute(categoryElement, bstrName, &vValue);
 516                         if( hr == S_OK && V_VT(&vValue) != VT_BSTR)
 517                             hr = E_FAIL;
 518                     }
 519
 520                     if(SUCCEEDED(hr))
 521                     {
 522                         lstrcpynW(data->categories[i].sName, V_BSTR(&vValue), MAX_CATEGORY_LENGTH);
 523                         TRACE("category %d name %s\n", i, debugstr_w(data->categories[i].sName));
 524                         hr = IXMLDOMElement_get_childNodes(categoryElement, &categoryChildren);
 525                     }
 526
 527                     if(SUCCEEDED(hr))
 528                     {
 529                         hr = S_OK;
 530                         while(hr == S_OK)
 531                         {
 532                             hr = IXMLDOMNodeList_nextNode(categoryChildren, &statisticNode);
 533
 534                             if(hr == S_OK)
 535                             {
 536                                 hr = IXMLDOMNode_QueryInterface(statisticNode, &IID_IXMLDOMElement, (LPVOID*)&statisticElement);
 537
 538                                 if(SUCCEEDED(hr))
 539                                 {
 540                                     hr = IXMLDOMElement_getAttribute(statisticElement, bstrIndex, &vValue);
 541                                     if( hr == S_OK && V_VT(&vValue) != VT_BSTR)
 542                                         hr = E_FAIL;
 543
 544                                     if(SUCCEEDED(hr))
 545                                     {
 546                                         j = StrToIntW(V_BSTR(&vValue));
 547                                         hr = IXMLDOMElement_getAttribute(statisticElement, bstrName, &vValue);
 548                                         if( hr == S_OK && V_VT(&vValue) != VT_BSTR)
 549                                             hr = E_FAIL;
 550                                     }
 551
 552                                     if(SUCCEEDED(hr))
 553                                     {
 554                                         lstrcpynW(data->categories[i].stats[j].sName, V_BSTR(&vValue), MAX_NAME_LENGTH);
 555                                         hr = IXMLDOMElement_getAttribute(statisticElement, bstrValue, &vValue);
 556                                         if( hr == S_OK && V_VT(&vValue) != VT_BSTR)
 557                                             hr = E_FAIL;
 558                                     }
 559
 560                                     if(SUCCEEDED(hr))
 561                                         lstrcpynW(data->categories[i].stats[j].sValue, V_BSTR(&vValue), MAX_VALUE_LENGTH);
 562
 563                                     TRACE("  statistic %d name %s value %s\n", j,
 564                                             debugstr_w(data->categories[i].stats[j].sName),
 565                                             debugstr_w(data->categories[i].stats[j].sValue));
 566                                     IXMLDOMElement_Release(statisticElement);
 567                                 }
 568
 569                                 IXMLDOMNode_Release(statisticNode);
 570                             }
 571                         }
 572
 573                         if(SUCCEEDED(hr))
 574                             hr = S_OK;
 575                     }
 576                     IXMLDOMElement_Release(categoryElement);
 577                 }
 578
 579                 IXMLDOMNode_Release(categoryNode);
 580             }
 581         }
 582         if(SUCCEEDED(hr))
 583             hr = S_OK;
 584     }
 585
 586     if(rootChildren) IXMLDOMNodeList_Release(rootChildren);
 587     if(root) IXMLDOMElement_Release(root);
 588     if(document) IXMLDOMDocument_Release(document);
 589
 590     SysFreeString(bstrValue);
 591     SysFreeString(bstrName);
 592     SysFreeString(bstrStatistic);
 593     SysFreeString(bstrIndex);
 594     SysFreeString(bstrCategory);
 595     SysFreeString(bstrStatistics);
 596     SysFreeString(V_BSTR(&vStatsFilePath));
 597     return hr;
 598 }
 599 /*******************************************************************
 600  * GAMEUX_loadGameStatistics
 601  *
 602  * Helper function which loads game statistics associated with game
 603  * into interface's internal structures
 604  *
 605  * Parameters:
 606  *  pStats              [O]     structure which will receive data
 607  *  sGameId             [I]     application instance Id, stored as string
 608  *                              to avoid additional conversions
 609  *  openType            [I]     allowed ways of opening statistics
 610  *  pOpenResult         [O]     way used to open statistics
 611  *
 612  */
 613 static HRESULT GAMEUX_loadGameStatistics(struct GAMEUX_STATS *pStats,
 614         LPWSTR sGameId,
 615         GAMESTATS_OPEN_TYPE openType,
 616         GAMESTATS_OPEN_RESULT* pOpenResult)
 617 {
 618     HRESULT hr;
 619     TRACE("(%p, %s, %d, %p)\n", pStats, debugstr_w(sGameId), openType, pOpenResult);
 620
 621     hr = GAMEUX_buildStatisticsFilePath(sGameId, pStats->sStatsFile);
 622
 623     hr = GAMEUX_loadStatisticsFromFile(pStats);
 624     TRACE("ldstats finished, res: %#x\n", hr);
 625     if(hr == S_OK)
 626     {
 627         *pOpenResult = GAMESTATS_OPEN_OPENED;
 628     }
 629     else if(hr == S_FALSE && openType == GAMESTATS_OPEN_OPENORCREATE) /* file does not exist */
 630     {
 631         /* create new statitics, not yet connected with file */
 632         TRACE("size: %d\n", sizeof(pStats->categories));
 633         ZeroMemory(pStats->categories, sizeof(pStats->categories));
 634         *pOpenResult = GAMESTATS_OPEN_CREATED;
 635         hr = S_OK;
 636     }
 637     else
 638         hr = HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
 639
 640     TRACE("openResult=%#x ret=%#x\n", *pOpenResult, hr);
 641     return hr;
 642 }
 643  /*******************************************************************
 644  * IGameStatistics implementation
 645  */
 646 typedef struct _GameStatisticsImpl
 647 {
 648     const struct IGameStatisticsVtbl *lpVtbl;
 649     LONG ref;
 650     struct GAMEUX_STATS stats;
 651 } GameStatisticsImpl;
 652
 653 static inline GameStatisticsImpl *impl_from_IGameStatistics( IGameStatistics *iface )
 654 {
 655     return (GameStatisticsImpl *)((char*)iface - FIELD_OFFSET(GameStatisticsImpl, lpVtbl));
 656 }
 657 static inline IGameStatistics *IGameStatistics_from_impl( GameStatisticsImpl* This )
 658 {
 659     return (struct IGameStatistics*)&This->lpVtbl;
 660 }
 661
 662
 663 static HRESULT WINAPI GameStatisticsImpl_QueryInterface(
 664         IGameStatistics *iface,
 665         REFIID riid,
 666         void **ppvObject)
 667 {
 668     GameStatisticsImpl *This = impl_from_IGameStatistics( iface );
 669
 670     TRACE("%p %s %p\n", This, debugstr_guid( riid ), ppvObject );
 671
 672     *ppvObject = NULL;
 673
 674     if ( IsEqualGUID( riid, &IID_IUnknown ) ||
 675          IsEqualGUID( riid, &IID_IGameStatistics ) )
 676     {
 677         *ppvObject = iface;
 678     }
 679     else
 680     {
 681         FIXME("interface %s not implemented\n", debugstr_guid(riid));
 682         return E_NOINTERFACE;
 683     }
 684
 685     IGameStatistics_AddRef( iface );
 686     return S_OK;
 687 }
 688
 689 static ULONG WINAPI GameStatisticsImpl_AddRef(IGameStatistics *iface)
 690 {
 691     GameStatisticsImpl *This = impl_from_IGameStatistics( iface );
 692     LONG ref;
 693
 694     ref = InterlockedIncrement(&This->ref);
 695
 696     TRACE("(%p): ref=%d\n", This, ref);
 697     return ref;
 698 }
 699
 700 static ULONG WINAPI GameStatisticsImpl_Release(IGameStatistics *iface)
 701 {
 702     GameStatisticsImpl *This = impl_from_IGameStatistics( iface );
 703     LONG ref;
 704
 705     ref = InterlockedDecrement( &This->ref );
 706     TRACE("(%p): ref=%d\n", This, ref);
 707
 708     if ( ref == 0 )
 709     {
 710         TRACE("freeing IGameStatistics\n");
 711         HeapFree( GetProcessHeap(), 0, This );
 712     }
 713
 714     return ref;
 715 }
 716
 717 static HRESULT WINAPI GameStatisticsImpl_GetMaxCategoryLength(
 718     IGameStatistics *iface,
 719     UINT *cch)
 720 {
 721     TRACE("(%p, %p)\n", iface, cch);
 722     if(!cch)
 723         return E_INVALIDARG;
 724
 725     *cch = MAX_CATEGORY_LENGTH;
 726     return S_OK;
 727 }
 728
 729 static HRESULT WINAPI GameStatisticsImpl_GetMaxNameLength(
 730     IGameStatistics *iface,
 731     UINT *cch)
 732 {
 733     TRACE("(%p, %p)\n", iface, cch);
 734     if(!cch)
 735         return E_INVALIDARG;
 736
 737     *cch = MAX_NAME_LENGTH;
 738     return S_OK;
 739 }
 740
 741 static HRESULT WINAPI GameStatisticsImpl_GetMaxValueLength(
 742     IGameStatistics *iface,
 743     UINT *cch)
 744 {
 745     TRACE("(%p, %p)\n", iface, cch);
 746     if(!cch)
 747         return E_INVALIDARG;
 748
 749     *cch = MAX_VALUE_LENGTH;
 750     return S_OK;
 751 }
 752
 753 static HRESULT WINAPI GameStatisticsImpl_GetMaxCategories(
 754     IGameStatistics *iface,
 755     WORD *pMax)
 756 {
 757     TRACE("(%p, %p)\n", iface, pMax);
 758     if(!pMax)
 759         return E_INVALIDARG;
 760
 761     *pMax = MAX_CATEGORIES;
 762     return S_OK;
 763 }
 764
 765 static HRESULT WINAPI GameStatisticsImpl_GetMaxStatsPerCategory(
 766     IGameStatistics *iface,
 767     WORD *pMax)
 768 {
 769     TRACE("(%p, %p)\n", iface, pMax);
 770     if(!pMax)
 771         return E_INVALIDARG;
 772
 773     *pMax = MAX_STATS_PER_CATEGORY;
 774     return S_OK;
 775 }
 776
 777 static HRESULT WINAPI GameStatisticsImpl_SetCategoryTitle(
 778     IGameStatistics *iface,
 779     WORD categoryIndex,
 780     LPCWSTR title)
 781 {
 782     HRESULT hr = S_OK;
 783     DWORD dwLength;
 784     GameStatisticsImpl *This = impl_from_IGameStatistics(iface);
 785
 786     TRACE("(%p, %d, %s)\n", This, categoryIndex, debugstr_w(title));
 787
 788     if(!title || categoryIndex >= MAX_CATEGORIES)
 789         return E_INVALIDARG;
 790
 791     dwLength = lstrlenW(title);
 792
 793     if(dwLength > MAX_CATEGORY_LENGTH)
 794     {
 795         hr = S_FALSE;
 796         dwLength = MAX_CATEGORY_LENGTH;
 797     }
 798
 799     lstrcpynW(This->stats.categories[categoryIndex].sName,
 800               title, dwLength+1);
 801
 802     return hr;
 803 }
 804
 805 static HRESULT WINAPI GameStatisticsImpl_GetCategoryTitle(
 806     IGameStatistics *iface,
 807     WORD categoryIndex,
 808     LPWSTR *pTitle)
 809 {
 810     HRESULT hr = S_OK;
 811     LONG nLength;
 812     GameStatisticsImpl *This = impl_from_IGameStatistics(iface);
 813
 814     TRACE("%p, %d, %p\n", This, categoryIndex, pTitle);
 815
 816     *pTitle = NULL;
 817
 818     if(!pTitle || categoryIndex >= MAX_CATEGORIES)
 819         hr = E_INVALIDARG;
 820
 821
 822     if(SUCCEEDED(hr))
 823     {
 824         nLength = lstrlenW(This->stats.categories[categoryIndex].sName);
 825         if(nLength != 0)
 826         {
 827             *pTitle = CoTaskMemAlloc(sizeof(WCHAR)*(nLength+1));
 828             lstrcpyW(*pTitle, This->stats.categories[categoryIndex].sName);
 829         }
 830     }
 831
 832     return hr;
 833 }
 834
 835 static HRESULT WINAPI GameStatisticsImpl_GetStatistic(
 836     IGameStatistics *iface,
 837     WORD categoryIndex,
 838     WORD statIndex,
 839     LPWSTR *pName,
 840     LPWSTR *pValue)
 841 {
 842     HRESULT hr = S_OK;
 843     LONG nLength;
 844     GameStatisticsImpl *This = impl_from_IGameStatistics(iface);
 845
 846     TRACE("%p, %d,%d, %p, %p\n", This, categoryIndex, statIndex, pName, pValue);
 847
 848     if(!pName || !pValue)
 849         return E_INVALIDARG;
 850
 851     *pName = NULL;
 852     *pValue = NULL;
 853
 854     if(categoryIndex >= MAX_CATEGORIES || statIndex >= MAX_STATS_PER_CATEGORY)
 855         hr = E_INVALIDARG;
 856
 857     if(SUCCEEDED(hr))
 858     {
 859         nLength = lstrlenW(This->stats.categories[categoryIndex].stats[statIndex].sName);
 860         if(nLength != 0)
 861         {
 862             *pName = CoTaskMemAlloc(sizeof(WCHAR)*(nLength+1));
 863             if(!(*pName))
 864                 hr = E_OUTOFMEMORY;
 865             else
 866                 lstrcpyW(*pName, This->stats.categories[categoryIndex].stats[statIndex].sName);
 867         }
 868     }
 869
 870     if(SUCCEEDED(hr))
 871     {
 872         nLength = lstrlenW(This->stats.categories[categoryIndex].stats[statIndex].sValue);
 873         if(nLength != 0)
 874         {
 875             *pValue = CoTaskMemAlloc(sizeof(WCHAR)*(nLength+1));
 876             if(!(*pValue))
 877                 hr = E_OUTOFMEMORY;
 878             else
 879                 lstrcpyW(*pValue, This->stats.categories[categoryIndex].stats[statIndex].sValue);
 880         }
 881     }
 882
 883     TRACE("returning pair; %s => %s\n", debugstr_w(*pName), debugstr_w(*pValue));
 884     return hr;
 885 }
 886
 887 static HRESULT WINAPI GameStatisticsImpl_SetStatistic(
 888     IGameStatistics *iface,
 889     WORD categoryIndex,
 890     WORD statIndex,
 891     LPCWSTR name,
 892     LPCWSTR value)
 893 {
 894     HRESULT hr = S_OK;
 895     DWORD dwNameLen, dwValueLen;
 896     GameStatisticsImpl *This = impl_from_IGameStatistics(iface);
 897
 898     TRACE("(%p, %d, %d, %s, %s)\n", This, categoryIndex, statIndex,
 899           debugstr_w(name), debugstr_w(value));
 900
 901     if(!name)
 902         return S_FALSE;
 903
 904     if(categoryIndex >= MAX_CATEGORIES || statIndex >= MAX_STATS_PER_CATEGORY)
 905         return E_INVALIDARG;
 906
 907     dwNameLen = lstrlenW(name);
 908
 909     if(dwNameLen > MAX_NAME_LENGTH)
 910     {
 911         hr = S_FALSE;
 912         dwNameLen = MAX_NAME_LENGTH;
 913     }
 914
 915     lstrcpynW(This->stats.categories[categoryIndex].stats[statIndex].sName,
 916               name, dwNameLen+1);
 917
 918     if(value)
 919     {
 920         dwValueLen = lstrlenW(value);
 921
 922         if(dwValueLen > MAX_VALUE_LENGTH)
 923         {
 924             hr = S_FALSE;
 925             dwValueLen = MAX_VALUE_LENGTH;
 926         }
 927
 928         lstrcpynW(This->stats.categories[categoryIndex].stats[statIndex].sValue,
 929                   value, dwValueLen+1);
 930     }
 931     else
 932         /* Windows allows to pass NULL as value */
 933         This->stats.categories[categoryIndex].stats[statIndex].sValue[0] = 0;
 934
 935     return hr;
 936 }
 937
 938 static HRESULT WINAPI GameStatisticsImpl_Save(
 939     IGameStatistics *iface,
 940     BOOL trackChanges)
 941 {
 942     GameStatisticsImpl *This = impl_from_IGameStatistics(iface);
 943     HRESULT hr = S_OK;
 944
 945     TRACE("(%p, %d)\n", This, trackChanges);
 946
 947     if(trackChanges == TRUE)
 948         FIXME("tracking changes not yet implemented\n");
 949
 950     hr = GAMEUX_updateStatisticsFile(&This->stats);
 951
 952     return hr;
 953 }
 954
 955 static HRESULT WINAPI GameStatisticsImpl_SetLastPlayedCategory(
 956     IGameStatistics *iface,
 957     UINT categoryIndex)
 958 {
 959     FIXME("stub\n");
 960     return E_NOTIMPL;
 961 }
 962
 963 static HRESULT WINAPI GameStatisticsImpl_GetLastPlayedCategory(
 964     IGameStatistics *iface,
 965     UINT *pCategoryIndex)
 966 {
 967     FIXME("stub\n");
 968     return E_NOTIMPL;
 969 }
 970
 971 static const struct IGameStatisticsVtbl GameStatisticsImplVtbl =
 972 {
 973     GameStatisticsImpl_QueryInterface,
 974     GameStatisticsImpl_AddRef,
 975     GameStatisticsImpl_Release,
 976     GameStatisticsImpl_GetMaxCategoryLength,
 977     GameStatisticsImpl_GetMaxNameLength,
 978     GameStatisticsImpl_GetMaxValueLength,
 979     GameStatisticsImpl_GetMaxCategories,
 980     GameStatisticsImpl_GetMaxStatsPerCategory,
 981     GameStatisticsImpl_SetCategoryTitle,
 982     GameStatisticsImpl_GetCategoryTitle,
 983     GameStatisticsImpl_GetStatistic,
 984     GameStatisticsImpl_SetStatistic,
 985     GameStatisticsImpl_Save,
 986     GameStatisticsImpl_SetLastPlayedCategory,
 987     GameStatisticsImpl_GetLastPlayedCategory
 988 };
 989
 990
 991 HRESULT create_IGameStatistics(GameStatisticsImpl** ppStats)
 992 {
 993     TRACE("(%p)\n", ppStats);
 994
 995     *ppStats = HeapAlloc( GetProcessHeap(), 0, sizeof(**ppStats));
 996     if(!(*ppStats))
 997         return E_OUTOFMEMORY;
 998
 999     (*ppStats)->lpVtbl = &GameStatisticsImplVtbl;
1000     (*ppStats)->ref = 1;
1001
1002     TRACE("returning coclass: %p\n", *ppStats);
1003     return S_OK;
1004 }
1005
1006 /*******************************************************************************
1007  * IGameStatisticsMgr implementation
1008  */
1009 typedef struct _GameStatisticsMgrImpl
1010 {
1011     const struct IGameStatisticsMgrVtbl *lpVtbl;
1012     LONG ref;
1013 } GameStatisticsMgrImpl;
1014
1015 static inline GameStatisticsMgrImpl *impl_from_IGameStatisticsMgr( IGameStatisticsMgr *iface )
1016 {
1017     return (GameStatisticsMgrImpl *)((char*)iface - FIELD_OFFSET(GameStatisticsMgrImpl, lpVtbl));
1018 }
1019
1020
1021 static HRESULT WINAPI GameStatisticsMgrImpl_QueryInterface(
1022         IGameStatisticsMgr *iface,
1023         REFIID riid,
1024         void **ppvObject)
1025 {
1026     GameStatisticsMgrImpl *This = impl_from_IGameStatisticsMgr( iface );
1027
1028     TRACE("%p %s %p\n", This, debugstr_guid( riid ), ppvObject );
1029
1030     *ppvObject = NULL;
1031
1032     if(IsEqualGUID(riid, &IID_IUnknown) ||
1033        IsEqualGUID(riid, &IID_IGameStatisticsMgr) )
1034     {
1035         *ppvObject = iface;
1036     }
1037     else
1038     {
1039         FIXME("interface %s not implemented\n", debugstr_guid(riid));
1040         return E_NOINTERFACE;
1041     }
1042
1043     IGameStatisticsMgr_AddRef( iface );
1044     return S_OK;
1045 }
1046
1047 static ULONG WINAPI GameStatisticsMgrImpl_AddRef(IGameStatisticsMgr *iface)
1048 {
1049     GameStatisticsMgrImpl *This = impl_from_IGameStatisticsMgr( iface );
1050     LONG ref;
1051
1052     ref = InterlockedIncrement(&This->ref);
1053
1054     TRACE("(%p): ref=%d\n", This, ref);
1055     return ref;
1056 }
1057
1058 static ULONG WINAPI GameStatisticsMgrImpl_Release(IGameStatisticsMgr *iface)
1059 {
1060     GameStatisticsMgrImpl *This = impl_from_IGameStatisticsMgr( iface );
1061     LONG ref;
1062
1063     ref = InterlockedDecrement(&This->ref);
1064     TRACE("(%p): ref=%d\n", This, ref);
1065
1066     if ( ref == 0 )
1067     {
1068         TRACE("freeing GameStatistics object\n");
1069         HeapFree( GetProcessHeap(), 0, This);
1070     }
1071
1072     return ref;
1073 }
1074
1075 static HRESULT STDMETHODCALLTYPE GameStatisticsMgrImpl_GetGameStatistics(
1076         IGameStatisticsMgr* iface,
1077         LPCWSTR GDFBinaryPath,
1078         GAMESTATS_OPEN_TYPE openType,
1079         GAMESTATS_OPEN_RESULT *pOpenResult,
1080         IGameStatistics **ppiStats)
1081 {
1082     HRESULT hr;
1083     WCHAR lpApplicationId[49];
1084     GameStatisticsImpl *statisticsImpl;
1085
1086     TRACE("(%p, %s, 0x%x, %p, %p)\n", iface, debugstr_w(GDFBinaryPath), openType, pOpenResult, ppiStats);
1087
1088     hr = GAMEUX_getAppIdFromGDFPath(GDFBinaryPath, lpApplicationId);
1089
1090     if(SUCCEEDED(hr))
1091         hr = create_IGameStatistics(&statisticsImpl);
1092
1093     if(SUCCEEDED(hr))
1094     {
1095         *ppiStats = IGameStatistics_from_impl(statisticsImpl);
1096         hr = GAMEUX_buildStatisticsFilePath(lpApplicationId, statisticsImpl->stats.sStatsFile);
1097     }
1098
1099     if(SUCCEEDED(hr))
1100         hr = GAMEUX_loadGameStatistics(&statisticsImpl->stats, lpApplicationId, openType, pOpenResult);
1101
1102     return hr;
1103 }
1104
1105 static HRESULT STDMETHODCALLTYPE GameStatisticsMgrImpl_RemoveGameStatistics(
1106         IGameStatisticsMgr* iface,
1107         LPCWSTR GDFBinaryPath)
1108 {
1109     HRESULT hr;
1110     WCHAR lpApplicationId[49];
1111     WCHAR sStatsFile[MAX_PATH];
1112
1113     TRACE("(%p, %s)\n", iface, debugstr_w(GDFBinaryPath));
1114
1115     hr = GAMEUX_getAppIdFromGDFPath(GDFBinaryPath, lpApplicationId);
1116
1117     if(SUCCEEDED(hr))
1118         hr = GAMEUX_buildStatisticsFilePath(lpApplicationId, sStatsFile);
1119
1120     if(SUCCEEDED(hr))
1121         hr = (DeleteFileW(sStatsFile)==TRUE ? S_OK : HRESULT_FROM_WIN32(GetLastError()));
1122
1123     return hr;
1124 }
1125
1126 static const struct IGameStatisticsMgrVtbl GameStatisticsMgrImplVtbl =
1127 {
1128     GameStatisticsMgrImpl_QueryInterface,
1129     GameStatisticsMgrImpl_AddRef,
1130     GameStatisticsMgrImpl_Release,
1131     GameStatisticsMgrImpl_GetGameStatistics,
1132     GameStatisticsMgrImpl_RemoveGameStatistics,
1133 };
1134
1135 HRESULT GameStatistics_create(
1136         IUnknown *pUnkOuter,
1137         IUnknown **ppObj)
1138 {
1139     GameStatisticsMgrImpl *pGameStatistics;
1140
1141     TRACE("(%p, %p)\n", pUnkOuter, ppObj);
1142
1143     pGameStatistics = HeapAlloc( GetProcessHeap(), 0, sizeof (*pGameStatistics) );
1144
1145     if( !pGameStatistics )
1146         return E_OUTOFMEMORY;
1147
1148     pGameStatistics->lpVtbl = &GameStatisticsMgrImplVtbl;
1149     pGameStatistics->ref = 1;
1150
1151     *ppObj = (IUnknown*)(&pGameStatistics->lpVtbl);
1152
1153     TRACE("returning iface %p\n", *ppObj);
1154     return S_OK;
1155 }