mirror of
https://github.com/qpdf/qpdf.git
synced 2024-06-26 15:13:42 +00:00
Run this: for i in **/*.cc **/*.c **/*.h **/*.hh; do clang-format < $i >| $i.new && mv $i.new $i done
109 lines
3.4 KiB
C++
109 lines
3.4 KiB
C++
// Copyright (c) 2005-2022 Jay Berkenbilt
|
|
//
|
|
// This file is part of qpdf.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//
|
|
// Versions of qpdf prior to version 7 were released under the terms
|
|
// of version 2.0 of the Artistic License. At your option, you may
|
|
// continue to consider qpdf to be licensed under those terms. Please
|
|
// see the manual for additional information.
|
|
|
|
#ifndef QPDFCRYPTOPROVIDER_HH
|
|
#define QPDFCRYPTOPROVIDER_HH
|
|
|
|
#include <qpdf/DLL.h>
|
|
#include <qpdf/QPDFCryptoImpl.hh>
|
|
#include <functional>
|
|
#include <map>
|
|
#include <memory>
|
|
#include <set>
|
|
#include <string>
|
|
|
|
// This class is part of qpdf's pluggable crypto provider support.
|
|
// Most users won't need to know or care about this class, but you can
|
|
// use it if you want to supply your own crypto implementation. See
|
|
// also comments in QPDFCryptoImpl.hh.
|
|
|
|
class QPDFCryptoProvider
|
|
{
|
|
public:
|
|
// Methods for getting and registering crypto implementations.
|
|
// These methods are not thread-safe.
|
|
|
|
// Return an instance of a crypto provider using the default
|
|
// implementation.
|
|
QPDF_DLL
|
|
static std::shared_ptr<QPDFCryptoImpl> getImpl();
|
|
|
|
// Return an instance of the crypto provider registered using the
|
|
// given name.
|
|
QPDF_DLL
|
|
static std::shared_ptr<QPDFCryptoImpl> getImpl(std::string const& name);
|
|
|
|
// Register the given type (T) as a crypto implementation. T must
|
|
// be derived from QPDFCryptoImpl and must have a constructor that
|
|
// takes no arguments.
|
|
template <typename T>
|
|
QPDF_DLL static void registerImpl(std::string const& name);
|
|
|
|
// Set the crypto provider registered with the given name as the
|
|
// default crypto implementation.
|
|
QPDF_DLL
|
|
static void setDefaultProvider(std::string const& name);
|
|
|
|
// Get the names of registered implementations
|
|
QPDF_DLL
|
|
static std::set<std::string> getRegisteredImpls();
|
|
|
|
// Get the name of the default crypto provider
|
|
QPDF_DLL
|
|
static std::string getDefaultProvider();
|
|
|
|
private:
|
|
QPDFCryptoProvider();
|
|
~QPDFCryptoProvider() = default;
|
|
QPDFCryptoProvider(QPDFCryptoProvider const&) = delete;
|
|
QPDFCryptoProvider& operator=(QPDFCryptoProvider const&) = delete;
|
|
|
|
static QPDFCryptoProvider& getInstance();
|
|
|
|
std::shared_ptr<QPDFCryptoImpl>
|
|
getImpl_internal(std::string const& name) const;
|
|
template <typename T>
|
|
void registerImpl_internal(std::string const& name);
|
|
void setDefaultProvider_internal(std::string const& name);
|
|
|
|
class Members
|
|
{
|
|
friend class QPDFCryptoProvider;
|
|
|
|
public:
|
|
Members() = default;
|
|
QPDF_DLL
|
|
~Members() = default;
|
|
|
|
private:
|
|
Members(Members const&) = delete;
|
|
Members& operator=(Members const&) = delete;
|
|
|
|
typedef std::function<std::shared_ptr<QPDFCryptoImpl>()> provider_fn;
|
|
std::string default_provider;
|
|
std::map<std::string, provider_fn> providers;
|
|
};
|
|
|
|
std::shared_ptr<Members> m;
|
|
};
|
|
|
|
#endif // QPDFCRYPTOPROVIDER_HH
|