Aspose::Pdf::LicenseCore Class Reference

The actual code of the license class is put into an internal class and made into long functions to make it harder for the crackers to find anything meaningful after the dlls were cracked in November 2005. The obfuscation virtualization is also applied using custom attribute. More...

Inherits System::Object.

Public Member Functions
System::ArrayPtr< System::String >	get_Products () const
	Gets Aspose product names this license is for. You need to specify value that matches the value specified in AssemblyProduct attribute. This is used to check that the license is suitable for this product. More...
Aspose::Pdf::EditionType	get_EditionType () const
	Gets edition type. You can use this to enable/disable some features depending on the edition type. More...
System::String	get_SerialNumber () const
	Unique license number. Used to black list stolen licenses. More...
System::DateTime	get_SubscriptionExpiry () const
	Gets the last date of the subscription. This is to be checked against custom attribute on the assembly that contains the relase date. More...
System::DateTime	get_LicenseExpiry () const
	This is for temporary licenses. Setter is only for unit testing. More...
void	set_LicenseExpiry (System::DateTime value)
	This is for temporary licenses. Setter is only for unit testing. More...
void	SetLicenseCore (System::String licenseName, System::SharedPtr< System::Reflection::Assembly > clientAssembly, bool embedded)
void	SetLicenseCore (System::String licenseName, System::SharedPtr< System::Reflection::Assembly > clientAssembly)
void	SetLicenseCore (System::SharedPtr< System::IO::Stream > stream)
	LicenseCore ()
Public Member Functions inherited from System::Object
ASPOSECPP_SHARED_API	Object ()
	Creates object. Initializes all internal data structures. More...
virtual ASPOSECPP_SHARED_API	~Object ()
	Destroys object. Frees all internal data structures. More...
ASPOSECPP_SHARED_API	Object (Object const &x)
	Copy constructor. Doesn't copy anything, really, just initializes new object and enables copy constructing subclasses. More...
Object &	operator= (Object const &x)
	Assignment operator. Doesn't copy anything, really, just initializes new object and enables copy constructing subclasses. More...
Object *	SharedRefAdded ()
	Increments shared reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...
int	SharedRefRemovedSafe ()
	Decrements and returns shared reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...
int	RemovedSharedRefs (int count)
	Decreases shared reference count by specified value. More...
Detail::SmartPtrCounter *	WeakRefAdded ()
	Increments weak reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...
void	WeakRefRemoved ()
	Decrements weak reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...
Detail::SmartPtrCounter *	GetCounter ()
	Gets reference counter data structure associated with the object. More...
int	SharedCount () const
	Gets current value of shared refernce counter. More...
ASPOSECPP_SHARED_API void	Lock ()
	Implements C# lock() statement locking. Call directly or use LockContext sentry object. More...
ASPOSECPP_SHARED_API void	Unlock ()
	Implements C# lock() statement unlocking. Call directly or use LockContext sentry object. More...
virtual ASPOSECPP_SHARED_API bool	Equals (ptr obj)
	Compares objects using C# Object.Equals semantics. More...
virtual ASPOSECPP_SHARED_API int	GetHashCode () const
	Analog of C# Object.GetHashCode() method. Enables hashing of custom objects. More...
virtual ASPOSECPP_SHARED_API String	ToString () const
	Analog of C# Object.ToString() method. Enables converting custom objects to string. More...
virtual ASPOSECPP_SHARED_API ptr	MemberwiseClone () const
	Analog of C# Object.MemberwiseClone() method. Enables cloning custom types. More...
virtual ASPOSECPP_SHARED_API const TypeInfo &	GetType () const
	Gets actual type of object. Analog of C# System.Object.GetType() call. More...
virtual ASPOSECPP_SHARED_API bool	Is (const TypeInfo &targetType) const
	Check if object represents an instance of type described by targetType. Analog of C# 'is' operator. More...
virtual ASPOSECPP_SHARED_API void	SetTemplateWeakPtr (unsigned int argument)
	Set n'th template argument a weak pointer (rather than shared). Allows switching pointers in containers to weak mode. More...
template<>
bool	Equals (float const &objA, float const &objB)
template<>
bool	Equals (double const &objA, double const &objB)
template<>
bool	ReferenceEquals (String const &str, std::nullptr_t)
template<>
bool	ReferenceEquals (String const &str1, String const &str2)

Static Public Member Functions
static void	ClearLicense ()
static LicenseState	GetLicenseState_ForInternalUse ()
	Call this from your component code to check if running evaluation version or not. More...
static LicenseState	GetLicenseState_ForPublicUse ()
	This method has to be exactly the same as GetLicenseState_ForInternalUse. It is created (and duplicated) to make hacking of Aspose licensing a little more difficult. The hacker can easily find this method and attempt to circumvent it, but it will not affect the real decision about watermark injection because it is made in GetLicenseState_ForInternalUse. More...
Static Public Member Functions inherited from System::Object
static bool	ReferenceEquals (ptr const &objA, ptr const &objB)
	Compares objects by reference. More...
template<typename T >
static std::enable_if<!IsSmartPtr< T >::value, bool >::type	ReferenceEquals (T const &objA, T const &objB)
	Compares objects by reference. More...
template<typename T >
static std::enable_if<!IsSmartPtr< T >::value, bool >::type	ReferenceEquals (T const &objA, std::nullptr_t)
	Reference-compares value type object with nullptr. More...
template<typename T1 , typename T2 >
static std::enable_if< IsSmartPtr< T1 >::value &&IsSmartPtr< T2 >::value, bool >::type	Equals (T1 const &objA, T2 const &objB)
	Compares reference type objects in C# style. More...
template<typename T1 , typename T2 >
static std::enable_if<!IsSmartPtr< T1 >::value &&!IsSmartPtr< T2 >::value, bool >::type	Equals (T1 const &objA, T2 const &objB)
	Compares value type objects in C# style. More...
static const TypeInfo &	Type ()
	Impleemnts C# typeof(System.Object) construct. More...

Static Public Attributes
static bool	UseInUnitTestsOneGlobalLicenseLikeOnProduction
	Generally now in unit tests used binding of license to thread that installed it. It makes sense cause in unit tests possible situation runs different tests where license must can be set and reset in different threads in same time - like in PCL conversion tests. This parameter allows if necessary force in unit tests' code usage of production model of work with license in multithreading : i.e. use fully static license(one installed license used with all threads, instead of situation where each thread will use independent copy of license) Please use try/finally blocks to ensure that this behaviour will be allways turned off after running of test that uses it More...

Protected Member Functions
virtual	~LicenseCore ()

Additional Inherited Members
Public Types inherited from System::Object
typedef SmartPtr< Object >	ptr
	Alias for smart pointer type. More...
typedef System::Details::SharedMembersType	shared_members_type
	structure to keep list of shared pointers contained in object. More...

Detailed Description

The actual code of the license class is put into an internal class and made into long functions to make it harder for the crackers to find anything meaningful after the dlls were cracked in November 2005. The obfuscation virtualization is also applied using custom attribute.

Constructor & Destructor Documentation

LicenseCore()

Aspose::Pdf::LicenseCore::LicenseCore

(

)

~LicenseCore()

virtual Aspose::Pdf::LicenseCore::~LicenseCore ( )

protectedvirtual

Member Function Documentation

ClearLicense()

static void Aspose::Pdf::LicenseCore::ClearLicense ( )

static

get_EditionType()

Aspose::Pdf::EditionType Aspose::Pdf::LicenseCore::get_EditionType

(

)

const

Gets edition type. You can use this to enable/disable some features depending on the edition type.

get_LicenseExpiry()

System::DateTime Aspose::Pdf::LicenseCore::get_LicenseExpiry

(

)

const

This is for temporary licenses. Setter is only for unit testing.

get_Products()

System::ArrayPtr<System::String> Aspose::Pdf::LicenseCore::get_Products

(

)

const

Gets Aspose product names this license is for. You need to specify value that matches the value specified in AssemblyProduct attribute. This is used to check that the license is suitable for this product.

get_SerialNumber()

System::String Aspose::Pdf::LicenseCore::get_SerialNumber

(

)

const

Unique license number. Used to black list stolen licenses.

get_SubscriptionExpiry()

System::DateTime Aspose::Pdf::LicenseCore::get_SubscriptionExpiry

(

)

const

Gets the last date of the subscription. This is to be checked against custom attribute on the assembly that contains the relase date.

GetLicenseState_ForInternalUse()

static LicenseState Aspose::Pdf::LicenseCore::GetLicenseState_ForInternalUse ( )

static

Call this from your component code to check if running evaluation version or not.

if (Aspose.Words.LicenseCore.GetLicenseState_ForInternalUse() == LicenseState.Evaluation)
    InjectWatermark();

GetLicenseState_ForPublicUse()

static LicenseState Aspose::Pdf::LicenseCore::GetLicenseState_ForPublicUse ( )

static

This method has to be exactly the same as GetLicenseState_ForInternalUse. It is created (and duplicated) to make hacking of Aspose licensing a little more difficult. The hacker can easily find this method and attempt to circumvent it, but it will not affect the real decision about watermark injection because it is made in GetLicenseState_ForInternalUse.

The issue was discussed and a solution proposed in https://asposeproductleads.wordpress.com/2015/08/20/license-islicensed-a-potential-security-leak/#comment-22

Returns

set_LicenseExpiry()

void Aspose::Pdf::LicenseCore::set_LicenseExpiry

(

System::DateTime

value

)

This is for temporary licenses. Setter is only for unit testing.

SetLicenseCore() [1/3]

void Aspose::Pdf::LicenseCore::SetLicenseCore	(	System::String	licenseName,
		System::SharedPtr< System::Reflection::Assembly >	clientAssembly,
		bool	embedded
	)

SetLicenseCore() [2/3]

void Aspose::Pdf::LicenseCore::SetLicenseCore	(	System::String	licenseName,
		System::SharedPtr< System::Reflection::Assembly >	clientAssembly
	)

SetLicenseCore() [3/3]

void Aspose::Pdf::LicenseCore::SetLicenseCore

(

System::SharedPtr< System::IO::Stream >

stream

)

Member Data Documentation

UseInUnitTestsOneGlobalLicenseLikeOnProduction

bool Aspose::Pdf::LicenseCore::UseInUnitTestsOneGlobalLicenseLikeOnProduction

static

Generally now in unit tests used binding of license to thread that installed it. It makes sense cause in unit tests possible situation runs different tests where license must can be set and reset in different threads in same time - like in PCL conversion tests. This parameter allows if necessary force in unit tests' code usage of production model of work with license in multithreading : i.e. use fully static license(one installed license used with all threads, instead of situation where each thread will use independent copy of license) Please use try/finally blocks to ensure that this behaviour will be allways turned off after running of test that uses it