1 /*
   2  * Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #ifndef PLATFORM_H
  27 #define PLATFORM_H
  28 
  29 #include "OrderedMap.h"
  30 
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <memory.h>
  34 #include <string>
  35 #include <map>
  36 #include <list>
  37 #include <vector>
  38 
  39 
  40 #ifdef WIN32
  41 #ifndef WINDOWS
  42 #define WINDOWS
  43 #endif
  44 #endif //WIN32
  45 
  46 #ifdef __APPLE__
  47 #define MAC
  48 #define POSIX
  49 #endif //__APPLE__
  50 
  51 
  52 #ifdef __linux
  53 #ifndef LINUX
  54 #define LINUX
  55 #endif
  56 #endif //__linux
  57 
  58 #ifdef LINUX
  59 #define POSIX
  60 #endif //LINUX
  61 
  62 
  63 
  64 #ifdef WINDOWS
  65 // Define Windows compatibility requirements XP or later
  66 #define WINVER 0x0600
  67 #define _WIN32_WINNT 0x0600
  68 
  69 #include <Windows.h>
  70 #include <tchar.h>
  71 #include <shlobj.h>
  72 #include <direct.h>
  73 #include <process.h>
  74 #include <malloc.h>
  75 
  76 typedef std::wstring TString;
  77 #define StringLength wcslen
  78 
  79 #define TRAILING_PATHSEPARATOR '\\'
  80 #define BAD_TRAILING_PATHSEPARATOR '/'
  81 #define PATH_SEPARATOR ';'
  82 #define BAD_PATH_SEPARATOR ':'
  83 
  84 typedef ULONGLONG TPlatformNumber;
  85 typedef DWORD TProcessID;
  86 
  87 #endif //WINDOWS
  88 
  89 
  90 #ifdef POSIX
  91 #include <errno.h>
  92 #include <unistd.h>
  93 #include <sys/stat.h>
  94 #include <dlfcn.h>
  95 #include <libgen.h>
  96 
  97 #define _T(x) x
  98 
  99 typedef char TCHAR;
 100 typedef std::string TString;
 101 #define StringLength strlen
 102 
 103 typedef unsigned long DWORD;
 104 
 105 #define TRAILING_PATHSEPARATOR '/'
 106 #define BAD_TRAILING_PATHSEPARATOR '\\'
 107 #define PATH_SEPARATOR ':'
 108 #define BAD_PATH_SEPARATOR ';'
 109 #define MAX_PATH 1000
 110 
 111 typedef long TPlatformNumber;
 112 typedef pid_t TProcessID;
 113 
 114 #define HMODULE void*
 115 #endif //POSIX
 116 
 117 
 118 // Config file sections
 119 #define CONFIG_SECTION_APPLICATION       _T("CONFIG_SECTION_APPLICATION")
 120 #define CONFIG_SECTION_JVMOPTIONS        _T("CONFIG_SECTION_JVMOPTIONS")
 121 #define CONFIG_SECTION_APPCDSJVMOPTIONS  _T("CONFIG_SECTION_APPCDSJVMOPTIONS")
 122 #define CONFIG_SECTION_ARGOPTIONS        _T("CONFIG_SECTION_ARGOPTIONS")
 123 #define CONFIG_SECTION_APPCDSGENERATECACHEJVMOPTIONS \
 124         _T("CONFIG_SECTION_APPCDSGENERATECACHEJVMOPTIONS")
 125 
 126 // Config file keys.
 127 #define CONFIG_VERSION            _T("CONFIG_VERSION")
 128 #define CONFIG_MAINJAR_KEY        _T("CONFIG_MAINJAR_KEY")
 129 #define CONFIG_MAINMODULE_KEY     _T("CONFIG_MAINMODULE_KEY")
 130 #define CONFIG_MAINCLASSNAME_KEY  _T("CONFIG_MAINCLASSNAME_KEY")
 131 #define CONFIG_CLASSPATH_KEY      _T("CONFIG_CLASSPATH_KEY")
 132 #define CONFIG_MODULEPATH_KEY     _T("CONFIG_MODULEPATH_KEY")
 133 #define APP_NAME_KEY              _T("APP_NAME_KEY")
 134 #define CONFIG_SPLASH_KEY         _T("CONFIG_SPLASH_KEY")
 135 #define CONFIG_APP_ID_KEY         _T("CONFIG_APP_ID_KEY")
 136 #define CONFIG_APP_MEMORY         _T("CONFIG_APP_MEMORY")
 137 #define CONFIG_APP_DEBUG          _T("CONFIG_APP_DEBUG")
 138 #define CONFIG_APPLICATION_INSTANCE _T("CONFIG_APPLICATION_INSTANCE")
 139 
 140 #define JVM_RUNTIME_KEY           _T("JVM_RUNTIME_KEY")
 141 #define JPACKAGER_APP_DATA_DIR     _T("CONFIG_APP_IDENTIFIER")
 142 
 143 
 144 
 145 typedef void* Module;
 146 typedef void* Procedure;
 147 
 148 
 149 template <typename ObjectType, typename ValueType,
 150         ValueType (ObjectType::*getter)(void),
 151         void (ObjectType::*setter)(ValueType)>
 152 class Property {
 153 private:
 154     ObjectType* FObject;
 155 
 156 public:
 157     Property() {
 158         FObject = NULL;
 159     }
 160 
 161     void SetInstance(ObjectType* Value) {
 162         FObject = Value;
 163     }
 164 
 165     // To set the value using the set method.
 166     ValueType operator =(const ValueType& Value) {
 167         assert(FObject != NULL);
 168         (FObject->*setter)(Value);
 169         return Value;
 170     }
 171 
 172     // The Property class is treated as the internal type.
 173     operator ValueType() {
 174         assert(FObject != NULL);
 175         return (FObject->*getter)();
 176     }
 177 };
 178 
 179 template <typename ObjectType, typename ValueType,
 180         ValueType (ObjectType::*getter)(void)>
 181 class ReadProperty {
 182 private:
 183     ObjectType* FObject;
 184 
 185 public:
 186     ReadProperty() {
 187         FObject = NULL;
 188     }
 189 
 190     void SetInstance(ObjectType* Value) {
 191         FObject = Value;
 192     }
 193 
 194     // The Property class is treated as the internal type.
 195     operator ValueType() {
 196         assert(FObject != NULL);
 197         return (FObject->*getter)();
 198     }
 199 };
 200 
 201 template <typename ObjectType, typename ValueType,
 202         void (ObjectType::*setter)(ValueType)>
 203 class WriteProperty {
 204 private:
 205     ObjectType* FObject;
 206 
 207 public:
 208     WriteProperty() {
 209         FObject = NULL;
 210     }
 211 
 212     void SetInstance(ObjectType* Value) {
 213         FObject = Value;
 214     }
 215 
 216     // To set the value using the set method.
 217     ValueType operator =(const ValueType& Value) {
 218         assert(FObject != NULL);
 219         (FObject->*setter)(Value);
 220         return Value;
 221     }
 222 };
 223 
 224 template <typename ValueType,
 225         ValueType (*getter)(void), void (*setter)(ValueType)>
 226 class StaticProperty {
 227 public:
 228     StaticProperty() {
 229     }
 230 
 231     // To set the value using the set method.
 232     ValueType operator =(const ValueType& Value) {
 233         (*getter)(Value);
 234         return Value;
 235     }
 236 
 237     // The Property class is treated as the internal type which is the getter.
 238     operator ValueType() {
 239         return (*setter)();
 240     }
 241 };
 242 
 243 template <typename ValueType, ValueType (*getter)(void)>
 244 class StaticReadProperty {
 245 public:
 246     StaticReadProperty() {
 247     }
 248 
 249     // The Property class is treated as the internal type which is the getter.
 250     operator ValueType() {
 251         return (*getter)();
 252     }
 253 };
 254 
 255 template <typename ValueType, void (*setter)(ValueType)>
 256 class StaticWriteProperty {
 257 public:
 258     StaticWriteProperty() {
 259     }
 260 
 261     // To set the value using the set method.
 262     ValueType operator =(const ValueType& Value) {
 263         (*setter)(Value);
 264         return Value;
 265     }
 266 };
 267 
 268 
 269 class Process {
 270 protected:
 271     std::list<TString> FOutput;
 272 
 273 public:
 274     Process() {
 275         Output.SetInstance(this);
 276         Input.SetInstance(this);
 277     }
 278 
 279     virtual ~Process() {}
 280 
 281     virtual bool IsRunning() = 0;
 282     virtual bool Terminate() = 0;
 283     virtual bool Execute(const TString Application,
 284         const std::vector<TString> Arguments, bool AWait = false) = 0;
 285     virtual bool Wait() = 0;
 286     virtual TProcessID GetProcessID() = 0;
 287 
 288     virtual std::list<TString> GetOutput() { return FOutput; }
 289     virtual void SetInput(TString Value) = 0;
 290 
 291     ReadProperty<Process, std::list<TString>, &Process::GetOutput> Output;
 292     WriteProperty<Process, TString, &Process::SetInput> Input;
 293 };
 294 
 295 
 296 template <typename T>
 297 class AutoFreePtr {
 298 private:
 299     T* FObject;
 300 
 301 public:
 302     AutoFreePtr() {
 303         FObject = NULL;
 304     }
 305 
 306     AutoFreePtr(T* Value) {
 307         FObject = Value;
 308     }
 309 
 310     ~AutoFreePtr() {
 311         if (FObject != NULL) {
 312             delete FObject;
 313         }
 314     }
 315 
 316     operator T* () const {
 317         return FObject;
 318     }
 319 
 320     T& operator* () const {
 321         return *FObject;
 322     }
 323 
 324     T* operator->() const {
 325         return FObject;
 326     }
 327 
 328     T** operator&() {
 329         return &FObject;
 330     }
 331 
 332     T* operator=(const T * rhs) {
 333         FObject = rhs;
 334         return FObject;
 335     }
 336 };
 337 
 338 
 339 class IPropertyContainer {
 340 public:
 341     IPropertyContainer(void) {}
 342     virtual ~IPropertyContainer(void) {}
 343 
 344     virtual bool GetValue(const TString Key, TString& Value) = 0;
 345     virtual size_t GetCount() = 0;
 346 };
 347 
 348 class ISectionalPropertyContainer {
 349 public:
 350     ISectionalPropertyContainer(void) {}
 351     virtual ~ISectionalPropertyContainer(void) {}
 352 
 353     virtual bool GetValue(const TString SectionName,
 354             const TString Key, TString& Value) = 0;
 355     virtual bool ContainsSection(const TString SectionName) = 0;
 356     virtual bool GetSection(const TString SectionName,
 357             OrderedMap<TString, TString> &Data) = 0;
 358 };
 359 
 360 class Environment {
 361 private:
 362     Environment() {
 363     }
 364 
 365 public:
 366     static TString GetNewLine() {
 367 #ifdef WINDOWS
 368         return _T("\r\n");
 369 #endif //WINDOWS
 370 #ifdef POSIX
 371         return _T("\n");
 372 #endif //POSIX
 373     }
 374 
 375     static StaticReadProperty<TString, &Environment::GetNewLine> NewLine;
 376 };
 377 
 378 
 379 enum DebugState {dsNone, dsNative, dsJava};
 380 enum MessageResponse {mrOK, mrCancel};
 381 enum AppCDSState {cdsUninitialized, cdsDisabled,
 382         cdsEnabled, cdsAuto, cdsGenCache};
 383 
 384 class Platform {
 385 private:
 386     AppCDSState FAppCDSState;
 387 
 388 protected:
 389     TProcessID singleInstanceProcessId;
 390 
 391     Platform(void): FAppCDSState(cdsUninitialized), singleInstanceProcessId(0) {
 392     }
 393 
 394 public:
 395     AppCDSState GetAppCDSState() { return FAppCDSState; }
 396     void SetAppCDSState(AppCDSState Value) { FAppCDSState = Value; }
 397     TProcessID GetSingleInstanceProcessId() { return singleInstanceProcessId; }
 398 
 399     static Platform& GetInstance();
 400 
 401     virtual ~Platform(void) {}
 402 
 403 public:
 404     virtual void ShowMessage(TString title, TString description) = 0;
 405     virtual void ShowMessage(TString description) = 0;
 406     virtual MessageResponse ShowResponseMessage(TString title,
 407            TString description) = 0;
 408 
 409     virtual void SetCurrentDirectory(TString Value) = 0;
 410 
 411     // Caller must free result using delete[].
 412     virtual TCHAR* ConvertStringToFileSystemString(TCHAR* Source,
 413             bool &release) = 0;
 414 
 415     // Caller must free result using delete[].
 416     virtual TCHAR* ConvertFileSystemStringToString(TCHAR* Source,
 417             bool &release) = 0;
 418 
 419     // Returns:
 420     // Windows=C:\Users\<username>\AppData\Local
 421     // Linux=~/.local
 422     // Mac=~/Library/Application Support
 423     virtual TString GetAppDataDirectory() = 0;
 424 
 425     virtual TString GetPackageAppDirectory() = 0;
 426     virtual TString GetPackageLauncherDirectory() = 0;
 427     virtual TString GetPackageRuntimeBinDirectory() = 0;
 428     virtual TString GetAppName() = 0;
 429 
 430     virtual TString GetConfigFileName() = 0;
 431 
 432     virtual TString GetBundledJVMLibraryFileName(TString RuntimePath) = 0;
 433 
 434     // Caller must free result.
 435     virtual ISectionalPropertyContainer* GetConfigFile(TString FileName) = 0;
 436 
 437     virtual TString GetModuleFileName() = 0;
 438     virtual TString GetPackageRootDirectory() = 0;
 439 
 440     virtual Module LoadLibrary(TString FileName) = 0;
 441     virtual void FreeLibrary(Module Module) = 0;
 442     virtual Procedure GetProcAddress(Module Module, std::string MethodName) = 0;
 443     virtual std::vector<TString> GetLibraryImports(const TString FileName) = 0;
 444     virtual std::vector<TString> FilterOutRuntimeDependenciesForPlatform(
 445             std::vector<TString> Imports) = 0;
 446 
 447     // Caller must free result.
 448     virtual Process* CreateProcess() = 0;
 449 
 450     virtual bool IsMainThread() = 0;
 451     virtual bool CheckForSingleInstance(TString Name) = 0;
 452     virtual void reactivateAnotherInstance() = 0;
 453 
 454     // Returns megabytes.
 455     virtual TPlatformNumber GetMemorySize() = 0;
 456 
 457     virtual std::map<TString, TString> GetKeys() = 0;
 458 
 459     virtual std::list<TString> LoadFromFile(TString FileName) = 0;
 460     virtual void SaveToFile(TString FileName,
 461              std::list<TString> Contents, bool ownerOnly) = 0;
 462 
 463     virtual TString GetTempDirectory() = 0;
 464 
 465 #ifdef DEBUG
 466     virtual DebugState GetDebugState() = 0;
 467     virtual int GetProcessID() = 0;
 468     virtual bool IsNativeDebuggerPresent() = 0;
 469 #endif //DEBUG
 470 };
 471 
 472 
 473 class Library {
 474 private:
 475     std::vector<TString> *FDependentLibraryNames;
 476     std::vector<Library*> *FDependenciesLibraries;
 477     Module FModule;
 478     std::string fname;
 479 
 480     void Initialize();
 481     void InitializeDependencies();
 482     void LoadDependencies();
 483     void UnloadDependencies();
 484 
 485 public:
 486     void* GetProcAddress(const std::string& MethodName) const;
 487 
 488 public:
 489     Library();
 490     Library(const TString &FileName);
 491     ~Library();
 492 
 493     bool Load(const TString &FileName);
 494     bool Unload();
 495 
 496     const std::string& GetName() const {
 497         return fname;
 498     }
 499 
 500     void AddDependency(const TString &FileName);
 501     void AddDependencies(const std::vector<TString> &Dependencies);
 502 };
 503 
 504 
 505 class Exception: public std::exception {
 506 private:
 507     TString FMessage;
 508 
 509 protected:
 510     void SetMessage(const TString Message) {
 511         FMessage = Message;
 512     }
 513 
 514 public:
 515     explicit Exception() : exception() {}
 516     explicit Exception(const TString Message) : exception() {
 517         SetMessage(Message);
 518     }
 519     virtual ~Exception() throw() {}
 520 
 521     TString GetMessage() { return FMessage; }
 522 };
 523 
 524 class FileNotFoundException: public Exception {
 525 public:
 526     explicit FileNotFoundException(const TString Message) : Exception(Message) {}
 527 };
 528 
 529 #endif // PLATFORM_H