NativeLauncher/tool/tac_common.cc

   1 /*
   2  * Copyright (c) 2019 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the License);
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an AS IS BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <fstream>
  18 #include <json/json.h>
  19 #include <pkgmgr-info.h>
  20 #include <pkgmgr_installer_info.h>
  21
  22 #include "log.h"
  23 #include "utils.h"
  24 #include "tac_common.h"
  25 #include "db_manager.h"
  26 #include "r2r_checker.h"
  27
  28 #ifdef  LOG_TAG
  29 #undef  LOG_TAG
  30 #endif
  31 #define LOG_TAG "DOTNET_INSTALLER_PLUGIN"
  32
  33 #define __XSTR(x) #x
  34 #define __STR(x) __XSTR(x)
  35 static const char* __DOTNET_DIR = __STR(DOTNET_DIR);
  36 static const char* __READ_ONLY_APP_UPDATE_DIR = __STR(READ_ONLY_APP_UPDATE_DIR);
  37 #undef __STR
  38 #undef __XSTR
  39
  40 static sqlite3 *tac_db = NULL;
  41 static sqlite3 *tlc_db = NULL;
  42 static std::vector<std::string> restore_nuget;
  43 static std::vector<std::string> restore_library;
  44
  45 static void cleanupDirectory()
  46 {
  47         std::vector<std::string> removeNuget;
  48         try {
  49                 for (auto& nuget : bf::recursive_directory_iterator(__DOTNET_DIR)) {
  50                         std::string nugetPath = nuget.path().string();
  51                         if (!bf::is_directory(nugetPath) ||
  52                                 nugetPath.find(TLC_LIBRARIES_DIR) != std::string::npos ||
  53                                 nugetPath.find(__READ_ONLY_APP_UPDATE_DIR) != std::string::npos) {
  54                                 continue;
  55                         }
  56
  57                         bool isExist = false;
  58                         for (auto& restore : restore_nuget) {
  59                                 if (nugetPath == restore || nugetPath == getBaseName(restore)) {
  60                                         isExist = true;
  61                                         break;
  62                                 }
  63                         }
  64                         if (!isExist) {
  65                                 removeNuget.push_back(nugetPath);
  66                         }
  67                 }
  68
  69                 for (auto& rm : removeNuget) {
  70                         if (!removeAll(rm)) {
  71                                 _SERR("Failed to remove of %s", rm.c_str());
  72                         }
  73                 }
  74                 removeNuget.clear();
  75         } catch (const bf::filesystem_error& error) {
  76                 _SERR("Failed to recursive directory: %s", error.what());
  77                 return;
  78         }
  79 }
  80
  81 // callback function of "pkgmgrinfo_appinfo_metadata_filter_foreach"
  82 static int tac_restoreDBCb(pkgmgrinfo_appinfo_h handle, void *userData)
  83 {
  84         char *pkgId = NULL;
  85         char *root = NULL;
  86         char *exec = NULL;
  87
  88         int ret = pkgmgrinfo_appinfo_get_pkgid(handle, &pkgId);
  89         if (ret != PMINFO_R_OK) {
  90                 _SERR("Failed to get pkgid");
  91                 return -1;
  92         }
  93
  94         ret = pkgmgrinfo_appinfo_get_root_path(handle, &root);
  95         if (ret != PMINFO_R_OK) {
  96                 _SERR("Failed to get root path");
  97                 return -1;
  98         }
  99         std::string rootPath = std::string(root);
 100
 101         ret = pkgmgrinfo_appinfo_get_exec(handle, &exec);
 102         if (ret != PMINFO_R_OK) {
 103                 _SERR("Failed to get exec name");
 104                 return -1;
 105         }
 106         std::string execName = std::string(exec).substr(std::string(exec).rfind('/') + 1);
 107
 108         enableTACPackage(std::string(pkgId));
 109
 110         std::vector<std::string> parserData;
 111         std::string binDir = concatPath(rootPath, "bin");
 112         std::string tacDir = concatPath(binDir, TAC_SYMLINK_SUB_DIR);
 113         for (auto& npAssembly : depsJsonParser(rootPath, execName)) {
 114                 std::string nugetPackage = npAssembly.substr(0, npAssembly.rfind(':'));
 115                 std::string assemblyName = npAssembly.substr(npAssembly.rfind(':') + 1);
 116                 if (exist(tacDir) && exist(concatPath(tacDir, assemblyName))) {
 117                         parserData.push_back(nugetPackage);
 118                 }
 119         }
 120         std::sort(parserData.begin(), parserData.end());
 121         parserData.erase(unique(parserData.begin(), parserData.end()), parserData.end());
 122
 123         for (auto& nuget : parserData) {
 124                 if (tac_db) {
 125                         std::string name = nuget.substr(0, nuget.find('/'));
 126                         std::string version = nuget.substr(nuget.rfind('/') + 1);
 127                         char *sql = sqlite3_mprintf(
 128                                 "INSERT INTO TAC (PKGID, NUGET, NAME, VERSION) " \
 129                                 "VALUES (%Q, %Q, %Q, %Q);",     pkgId, nuget.c_str(), name.c_str(), version.c_str());
 130                         insertDB(tac_db, sql);
 131                         restore_nuget.push_back(concatPath(__DOTNET_DIR, nuget));
 132                         sqlite3_free(sql);
 133                 }
 134         }
 135         parserData.clear();
 136
 137         return 0;
 138 }
 139
 140 tac_error_e tac_restoreDB()
 141 {
 142         if (!removeFile(TAC_APP_LIST_RESTORE_DB)) {
 143                 _SERR("Failed to remove of %s", TAC_APP_LIST_RESTORE_DB);
 144                 return TAC_ERROR_UNKNOWN;
 145         }
 146
 147         std::string dbRestoreJournal = TAC_APP_LIST_RESTORE_DB + std::string("-journal");
 148         if (!removeFile(dbRestoreJournal)) {
 149                 _SERR("Failed to remove of %s", dbRestoreJournal.c_str());
 150                 return TAC_ERROR_UNKNOWN;
 151         }
 152
 153         tac_db = createDB(TAC_APP_LIST_RESTORE_DB, CREATE_TAC_DB_TABLE);
 154         if (!tac_db) {
 155                 _SERR("Sqlite create error");
 156                 return TAC_ERROR_UNKNOWN;
 157         }
 158         sqlite3_exec(tac_db, "BEGIN;", NULL, NULL, NULL);
 159
 160         pkgmgrinfo_appinfo_metadata_filter_h handle;
 161         int ret = pkgmgrinfo_appinfo_metadata_filter_create(&handle);
 162         if (ret != PMINFO_R_OK) {
 163                 return TAC_ERROR_UNKNOWN;
 164         }
 165
 166         ret = pkgmgrinfo_appinfo_metadata_filter_add(handle, TAC_METADATA_KEY, METADATA_VALUE_TRUE);
 167         if (ret != PMINFO_R_OK) {
 168                 pkgmgrinfo_appinfo_metadata_filter_destroy(handle);
 169                 return TAC_ERROR_UNKNOWN;
 170         }
 171
 172         ret = pkgmgrMDFilterForeach(handle, tac_restoreDBCb, NULL);
 173         if (ret != 0) {
 174                 pkgmgrinfo_appinfo_metadata_filter_destroy(handle);
 175                 return TAC_ERROR_UNKNOWN;
 176         }
 177
 178         pkgmgrinfo_appinfo_metadata_filter_destroy(handle);
 179
 180         if (tac_db) {
 181                 closeDB(tac_db);
 182                 tac_db = NULL;
 183         }
 184
 185         if (!copyFile(TAC_APP_LIST_RESTORE_DB, TAC_APP_LIST_DB)) {
 186                 _SERR("Failed to copy of %s", TAC_APP_LIST_DB);
 187                 return TAC_ERROR_UNKNOWN;
 188         }
 189         if (!removeFile(TAC_APP_LIST_RESTORE_DB)) {
 190                 _SERR("Failed to remove of %s", TAC_APP_LIST_RESTORE_DB);
 191                 return TAC_ERROR_UNKNOWN;
 192         }
 193
 194         std::string dbJournal = TAC_APP_LIST_DB + std::string("-journal");
 195         if (!copyFile(dbRestoreJournal, dbJournal)) {
 196                 _SERR("Failed to copy of %s", dbJournal.c_str());
 197                 return TAC_ERROR_UNKNOWN;
 198         }
 199         if (!removeFile(dbRestoreJournal)) {
 200                 _SERR("Failed to remove of %s", dbRestoreJournal.c_str());
 201                 return TAC_ERROR_UNKNOWN;
 202         }
 203
 204         cleanupDirectory();
 205
 206         return TAC_ERROR_NONE;
 207 }
 208
 209 tac_error_e disableTACPackage(const std::string& pkgId)
 210 {
 211         std::string rootPath = getRootPath(pkgId);
 212         if (rootPath.empty()) {
 213                 _SERR("Failed to get root path from [%s]", pkgId.c_str());
 214                 return TAC_ERROR_INVALID_PACKAGE;
 215         }
 216
 217         std::string binDir = concatPath(rootPath, "bin");
 218         std::string tacDir = concatPath(binDir, TAC_SYMLINK_SUB_DIR);
 219         std::string binNIDir = concatPath(binDir, APP_NI_SUB_DIR);
 220         if (exist(tacDir)) {
 221                 try {
 222                         for (auto& symlinkAssembly : bf::recursive_directory_iterator(tacDir)) {
 223                                 std::string symPath = symlinkAssembly.path().string();
 224                                 std::string fileName = symlinkAssembly.path().filename().string();
 225                                 if (isSymlinkFile(symPath)) {
 226                                         std::string originPath = bf::read_symlink(symPath).string();
 227                                         if (!isR2RImage(symPath)) {
 228                                                 std::string dllPath = concatPath(binDir, fileName);
 229                                                 if (!copyFile(originPath, dllPath)) {
 230                                                         _SERR("Failed to copy of %s", dllPath.c_str());
 231                                                         return TAC_ERROR_UNKNOWN;
 232                                                 }
 233                                                 copySmackAndOwnership(binDir.c_str(), concatPath(binDir, fileName).c_str());
 234                                         } else {
 235                                                 std::string niPath = concatPath(binNIDir, fileName);
 236                                                 if (!copyFile(originPath, niPath)) {
 237                                                         _SERR("Failed to copy of %s", niPath.c_str());
 238                                                         return TAC_ERROR_UNKNOWN;
 239                                                 }
 240                                                 copySmackAndOwnership(binDir.c_str(), niPath.c_str());
 241                                         }
 242                                 }
 243                         }
 244                         if (!removeAll(tacDir)) {
 245                                 _SERR("Failed to remove of %s", tacDir.c_str());
 246                                 return TAC_ERROR_UNKNOWN;
 247                         }
 248                 } catch (const bf::filesystem_error& error) {
 249                         _SERR("Failed to recursive directory: %s", error.what());
 250                         return TAC_ERROR_UNKNOWN;
 251                 }
 252         }
 253         return TAC_ERROR_NONE;
 254 }
 255
 256 tac_error_e enableTACPackage(const std::string& pkgId)
 257 {
 258         std::string rootPath = getRootPath(pkgId);
 259         if (rootPath.empty()) {
 260                 _SERR("Failed to get root path from [%s]", pkgId.c_str());
 261                 return TAC_ERROR_INVALID_PACKAGE;
 262         }
 263
 264         std::string binDir = concatPath(rootPath, "bin");
 265         if (exist(concatPath(binDir, PRE_COMPILED_PACKAGE_FILE))) {
 266                 _INFO("The %s is a Pre-Compiled package. So, skip the TAC", pkgId.c_str());
 267                 return TAC_ERROR_NONE;
 268         }
 269
 270         std::string execName = getExecName(pkgId);
 271         if (execName.empty()) {
 272                 _SERR("Failed to get exec name from [%s]", pkgId.c_str());
 273                 return TAC_ERROR_INVALID_PACKAGE;
 274         }
 275
 276         std::string metaValue = getMetadataValue(pkgId, TAC_METADATA_KEY);
 277         if (metaValue.empty()) {
 278                 _SERR("Failed to get metadata from [%s]", pkgId.c_str());
 279                 return TAC_ERROR_INVALID_PACKAGE;
 280         }
 281
 282         if (!strcmp(metaValue.c_str(), METADATA_VALUE_TRUE)) {
 283                 std::string binDir = concatPath(rootPath, "bin");
 284                 std::string tacDir = concatPath(binDir, TAC_SYMLINK_SUB_DIR);
 285                 std::string binNIDir = concatPath(binDir, APP_NI_SUB_DIR);
 286                 if (!exist(tacDir)) {
 287                         if (!createDir(tacDir)) {
 288                                 _SERR("Cannot create directory: %s", tacDir.c_str());
 289                                 return TAC_ERROR_UNKNOWN;
 290                         }
 291                         copySmackAndOwnership(binDir.c_str(), tacDir.c_str());
 292
 293                         std::vector<std::string> enableNuget;
 294                         for (auto& npAssembly : depsJsonParser(rootPath, execName)) {
 295                                 std::string nugetPackage = npAssembly.substr(0, npAssembly.rfind(':'));
 296                                 std::string assemblyName = npAssembly.substr(npAssembly.rfind(':') + 1);
 297                                 std::string nugetPath = concatPath(__DOTNET_DIR, nugetPackage);
 298                                 if (exist(nugetPath)) {
 299                                         std::string originPath = concatPath(nugetPath, assemblyName);
 300                                         if (exist(originPath)) {
 301                                                 enableNuget.push_back(originPath);
 302                                         }
 303                                 }
 304                         }
 305
 306                         bs::error_code error;
 307                         for (auto& originPath : enableNuget) {
 308                                 if (exist(originPath)) {
 309                                         std::string fileName = originPath.substr(originPath.rfind('/') + 1);
 310                                         std::string NIFileName = changeExtension(fileName, "dll", "ni.dll");
 311                                         if (exist(binNIDir)) {
 312                                                 std::string originNIPath = changeExtension(originPath, "dll", "ni.dll");
 313                                                 if (exist(originNIPath)) {
 314                                                         bf::create_symlink(originNIPath, concatPath(tacDir, NIFileName), error);
 315                                                         if (error) {
 316                                                                 _SERR("Failed to create symlink %s file", concatPath(tacDir, NIFileName).c_str());
 317                                                                 return TAC_ERROR_UNKNOWN;
 318                                                         }
 319                                                         _SOUT("%s symbolic link file generated successfully.", concatPath(tacDir, NIFileName).c_str());
 320                                                         copySmackAndOwnership(tacDir.c_str(), concatPath(tacDir, NIFileName).c_str(), true);
 321
 322                                                         if (!removeFile(concatPath(binNIDir, NIFileName))) {
 323                                                                 _SERR("Failed to remove of %s", concatPath(binNIDir, NIFileName).c_str());
 324                                                                 return TAC_ERROR_UNKNOWN;
 325                                                         }
 326                                                 }
 327                                         }
 328                                         bf::create_symlink(originPath, concatPath(tacDir, fileName), error);
 329                                         if (error) {
 330                                                 _SERR("Failed to create symlink %s file", concatPath(tacDir, fileName).c_str());
 331                                                 return TAC_ERROR_UNKNOWN;
 332                                         }
 333                                         _SOUT("%s symbolic link file generated successfully.", concatPath(tacDir, fileName).c_str());
 334                                         copySmackAndOwnership(tacDir.c_str(), concatPath(tacDir, fileName).c_str(), true);
 335
 336                                         if (!removeFile(concatPath(binDir, fileName))) {
 337                                                 _SERR("Failed to remove of %s", concatPath(binDir, fileName).c_str());
 338                                                 return TAC_ERROR_UNKNOWN;
 339                                         }
 340                                 }
 341                         }
 342                         if (enableNuget.empty()) {
 343                                 if (!removeAll(tacDir)) {
 344                                         _SERR("Failed to remove of %s", tacDir.c_str());
 345                                 }
 346                         }
 347                         enableNuget.clear();
 348                 }
 349         } else {
 350                 _SERR("The metadata key is missing or the metadata value is false of [%s]", pkgId.c_str());
 351         }
 352         return TAC_ERROR_NONE;
 353 }
 354
 355 //Parser the .deps.json file to get nuget information.
 356 std::vector<std::string> depsJsonParser(const std::string& rootPath, const std::string& execName)
 357 {
 358         std::vector<std::string> parserData;
 359         std::string depsJsonName = changeExtension(execName, "dll", "deps.json");
 360         std::string depsJsonPath = concatPath(rootPath, depsJsonName);
 361         try {
 362                 if (exist(depsJsonPath)) {
 363                         std::ifstream ifs(depsJsonPath);
 364                         Json::CharReaderBuilder reader;
 365                         Json::Value root;
 366                         std::string error;
 367                         if (ifs.is_open()) {
 368                                 if (!Json::parseFromStream(reader, ifs, &root, &error)) {
 369                                         _ERR("Failed to parse of deps.json");
 370                                         ifs.close();
 371                                         return parserData;
 372                                 }
 373                                 const Json::Value runtimeTargetName = root["runtimeTarget"]["name"];
 374                                 const Json::Value nugetPackages = root["targets"][runtimeTargetName.asString().c_str()];
 375                                 for (auto& nuget : nugetPackages.getMemberNames()) {
 376                                         //Skip the nuget package related to Tizen
 377                                         if (strstr(nuget.c_str(), TIZEN_DOTNET_NUGET) == NULL &&
 378                                                 strstr(nuget.c_str(), TIZEN_DOTNET_SDK_NUGET) == NULL &&
 379                                                 strstr(nuget.c_str(), (execName.substr(0, execName.find(".Tizen."))).c_str()) == NULL &&
 380                                                 strstr(nuget.c_str(), (execName.substr(0, execName.find(".dll"))).c_str()) == NULL) {
 381                                                 const Json::Value assemblies = nugetPackages[nuget.c_str()]["runtime"];
 382                                                 if (assemblies != Json::nullValue) {
 383                                                         // handle assembly even though that is included in the TPA.
 384                                                         for (auto& assembly : assemblies.getMemberNames()) {
 385                                                                 std::string assemblyName = assembly.substr(assembly.rfind('/') + 1);
 386                                                                 parserData.push_back(nuget + ":" + assemblyName);
 387                                                                 _INFO("Nuget : [%s] / Assembly : [%s]", nuget.c_str(), assemblyName.c_str());
 388                                                         }
 389                                                 }
 390                                         }
 391                                 }
 392                                 ifs.close();
 393                         }
 394                 }
 395         } catch (const Json::Exception& error) {
 396                 _ERR("Failed to parse Json: %s", error.what());
 397         }
 398         return parserData;
 399 }
 400
 401 std::vector<std::string> getLibrariesInfo(const std::string& rootPath)
 402 {
 403         std::vector<std::string> LibrariesInfo;
 404         std::string binDir = concatPath(rootPath, "bin");
 405         if (!exist(binDir))
 406                 return LibrariesInfo;
 407
 408         auto convert = [&LibrariesInfo](const std::string& filepath, const std::string& filename) {
 409                 if (filename.find(".so", filename.size() - 3) != std::string::npos || filepath.rfind(".so.") != std::string::npos) {
 410                         std::string buffer = SHA256(filepath);
 411                         LibrariesInfo.push_back(filepath + ":" + buffer);
 412                         _INFO("Library : [%s] / SHA256 : [%s]", filename.c_str(), buffer.c_str());
 413                 }
 414         };
 415         scanFilesInDirectory(binDir, convert, -1);
 416
 417         return LibrariesInfo;
 418 }
 419
 420 // callback function of "pkgmgrinfo_appinfo_metadata_filter_foreach"
 421 static int tlc_restoreDBCb(pkgmgrinfo_appinfo_h handle, void *userData)
 422 {
 423         char *pkgId = NULL;
 424         char *root = NULL;
 425         std::string rootPath;
 426
 427         int ret = pkgmgrinfo_appinfo_get_pkgid(handle, &pkgId);
 428         if (ret != PMINFO_R_OK) {
 429                 _SERR("Failed to get pkgid");
 430                 return -1;
 431         }
 432
 433         ret = pkgmgrinfo_appinfo_get_root_path(handle, &root);
 434         if (ret != PMINFO_R_OK) {
 435                 _SERR("Failed to get root path");
 436                 return -1;
 437         }
 438         rootPath = std::string(root);
 439
 440         for (auto& librarySha : getLibrariesInfo(rootPath)) {
 441                 std::string library = librarySha.substr(0, librarySha.find(':'));
 442                 if (exist(library)) {
 443                         std::string fileSha = library.substr(library.rfind('/') + 1) + ".." + librarySha.substr(librarySha.find(':') + 1);
 444                         char *sql = sqlite3_mprintf("INSERT INTO TLC (PKGID, LIBRARY) VALUES (%Q, %Q);", pkgId, fileSha.c_str());
 445                         insertDB(tlc_db, sql);
 446                         restore_library.push_back(fileSha);
 447                         sqlite3_free(sql);
 448                 }
 449         }
 450         return 0;
 451 }
 452
 453 tac_error_e tlc_restoreDB()
 454 {
 455         if (!removeFile(TLC_APP_LIST_RESTORE_DB)) {
 456                 _SERR("Failed to remove of %s", TLC_APP_LIST_RESTORE_DB);
 457                 return TAC_ERROR_UNKNOWN;
 458         }
 459
 460         std::string dbRestoreJournal = TLC_APP_LIST_RESTORE_DB + std::string("-journal");
 461         if (!removeFile(dbRestoreJournal)) {
 462                 _SERR("Failed to remove of %s", dbRestoreJournal.c_str());
 463                 return TAC_ERROR_UNKNOWN;
 464         }
 465
 466         tlc_db = createDB(TLC_APP_LIST_RESTORE_DB, CREATE_TLC_DB_TABLE);
 467         if (!tlc_db) {
 468                 _SERR("Sqlite create error");
 469                 return TAC_ERROR_UNKNOWN;
 470         }
 471         sqlite3_exec(tlc_db, "BEGIN;", NULL, NULL, NULL);
 472
 473         pkgmgrinfo_appinfo_metadata_filter_h handle;
 474         int ret = pkgmgrinfo_appinfo_metadata_filter_create(&handle);
 475         if (ret != PMINFO_R_OK) {
 476                 return TAC_ERROR_UNKNOWN;
 477         }
 478
 479         ret = pkgmgrinfo_appinfo_metadata_filter_add(handle, TAC_METADATA_KEY, METADATA_VALUE_TRUE);
 480         if (ret != PMINFO_R_OK) {
 481                 pkgmgrinfo_appinfo_metadata_filter_destroy(handle);
 482                 return TAC_ERROR_UNKNOWN;
 483         }
 484
 485         ret = pkgmgrMDFilterForeach(handle, tlc_restoreDBCb, NULL);
 486         if (ret != 0) {
 487                 pkgmgrinfo_appinfo_metadata_filter_destroy(handle);
 488                 return TAC_ERROR_UNKNOWN;
 489         }
 490
 491         pkgmgrinfo_appinfo_metadata_filter_destroy(handle);
 492
 493         if (tlc_db) {
 494                 closeDB(tlc_db);
 495                 tlc_db = NULL;
 496         }
 497
 498         if (!copyFile(TLC_APP_LIST_RESTORE_DB, TLC_APP_LIST_DB)) {
 499                 _SERR("Failed to copy of %s", TLC_APP_LIST_DB);
 500                 return TAC_ERROR_UNKNOWN;
 501         }
 502         if (!removeFile(TLC_APP_LIST_RESTORE_DB)) {
 503                 _SERR("Failed to remove of %s", TLC_APP_LIST_RESTORE_DB);
 504                 return TAC_ERROR_UNKNOWN;
 505         }
 506
 507         std::string dbJournal = TLC_APP_LIST_DB + std::string("-journal");
 508         if (!copyFile(dbRestoreJournal, dbJournal)) {
 509                 _SERR("Failed to copy of %s", dbJournal.c_str());
 510                 return TAC_ERROR_UNKNOWN;
 511         }
 512         if (!removeFile(dbRestoreJournal)) {
 513                 _SERR("Failed to remove of %s", dbRestoreJournal.c_str());
 514                 return TAC_ERROR_UNKNOWN;
 515         }
 516
 517         auto convert = [](const std::string& path, const std::string& filename) {
 518                 bool isExist = false;
 519                 for (auto& library : restore_library) {
 520                         if (!strcmp(filename.c_str(), library.c_str())) {
 521                                 isExist = true;
 522                                 break;
 523                         }
 524                 }
 525                 if (!isExist) {
 526                         if (!removeFile(path)) {
 527                                 _ERR("Failed to remove of %s", path.c_str());
 528                         }
 529                 }
 530         };
 531
 532         scanFilesInDirectory(concatPath(__DOTNET_DIR, TLC_LIBRARIES_DIR), convert, 0);
 533
 534         return TAC_ERROR_NONE;
 535 }