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327 lines
14 KiB
C++
327 lines
14 KiB
C++
//
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// SSLManager.h
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//
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// $Id$
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//
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// Library: NetSSL_Win
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// Package: SSLCore
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// Module: SSLManager
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//
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// Definition of the SSLManager class.
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//
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// Copyright (c) 2006-2014, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef NetSSL_SSLManager_INCLUDED
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#define NetSSL_SSLManager_INCLUDED
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#include "Poco/Net/NetSSL.h"
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#include "Poco/Net/VerificationErrorArgs.h"
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#include "Poco/Net/Context.h"
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#include "Poco/Net/PrivateKeyFactoryMgr.h"
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#include "Poco/Net/CertificateHandlerFactoryMgr.h"
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#include "Poco/Net/InvalidCertificateHandler.h"
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#include "Poco/Util/AbstractConfiguration.h"
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#include "Poco/BasicEvent.h"
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#include "Poco/SharedPtr.h"
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#include <wincrypt.h>
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#include <schannel.h>
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#ifndef SECURITY_WIN32
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#define SECURITY_WIN32
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#endif
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#include <security.h>
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#include <sspi.h>
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namespace Poco {
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namespace Net {
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class Context;
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class NetSSL_Win_API SSLManager
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/// SSLManager is a singleton for holding the default server/client
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/// Context and handling callbacks for certificate verification errors
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/// and private key passphrases.
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///
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/// Proper initialization of SSLManager is critical.
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///
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/// SSLManager can be initialized manually, by calling initializeServer()
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/// and/or initializeClient(), or initialization can be automatic. In the latter
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/// case, a Poco::Util::Application instance must be available and the required
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/// configuration properties must be set (see below).
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///
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/// Note that manual initialization must happen very early in the application,
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/// before defaultClientContext() or defaultServerContext() are called.
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///
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/// If defaultClientContext() and defaultServerContext() are never called
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/// in an application, initialization of SSLManager can be omitted.
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/// However, in this case, delegates for the ServerVerificationError,
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/// ClientVerificationError and PrivateKeyPassphraseRequired events
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/// must be registered.
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///
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/// An exemplary documentation which sets either the server or client default context and creates
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/// a PrivateKeyPassphraseHandler that reads the password from the XML file looks like this:
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///
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/// <AppConfig>
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/// <schannel>
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/// <server|client>
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/// <certificateName>cert Id</certificateName>
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/// <certificateStore>MY</certificateStore>
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/// <verificationMode>none|relaxed|strict</verificationMode>
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/// <revocationCheck>true|false</revocationCheck>
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/// <trustRoots>true|false</trustRoots>
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/// <useMachineStore>true|false</useMachineStore>
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/// <useStrongCrypto>true|false</useStrongCrypto>
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/// <privateKeyPassphraseHandler>
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/// <name>KeyFileHandler</name>
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/// <options>
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/// <password>s3cr3t</password>
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/// </options>
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/// </privateKeyPassphraseHandler>
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/// <invalidCertificateHandler>
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/// <name>ConsoleCertificateHandler</name>
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/// <options>
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/// </options>
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/// </invalidCertificateHandler>
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/// <requireTLSv1>true|false</requireTLSv1>
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/// <requireTLSv1_1>true|false</requireTLSv1_1>
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/// <requireTLSv1_2>true|false</requireTLSv1_2>
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/// </server|client>
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/// </schannel>
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/// </AppConfig>
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///
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/// Following is a list of supported configuration properties. Property names must always
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/// be prefixed with openSSL.server or openSSL.client. Some properties are only supported
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/// for servers.
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///
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/// - certificateName (string): The subject name of the certificate to use. The certificate must
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/// be available in the Windows user or machine certificate store.
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/// - certificatePath (string): The path of a certificate and private key file in PKCS #12 format.
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/// - certificateStore (string): The certificate store location to use.
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/// Valid values are "MY", "Root", "Trust" or "CA". Defaults to "MY".
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/// - verificationMode (string): Specifies whether and how peer certificates are validated (see
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/// the Context class for details). Valid values are "none", "relaxed", "strict". Defaults to "relaxed".
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/// - revocationCheck (boolean): Enable or disable checking of certificates against revocation list.
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/// Defaults to true. Not supported (ignored) on Windows Embedded Compact.
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/// - trustRoots (boolean): Trust root certificates from Windows root certificate store. Defaults to true.
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/// - useMachineStore (boolean): Use Windows machine certificate store instead of user store (server only).
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/// Special user privileges may be required. Defaults to false.
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/// - useStrongCrypto (boolean): Disable known weak cryptographic algorithms, cipher suites, and
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/// SSL/TLS protocol versions that may be otherwise enabled for better interoperability.
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/// Defaults to true.
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/// - privateKeyPassphraseHandler.name (string): The name of the class (subclass of PrivateKeyPassphraseHandler)
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/// used for obtaining the passphrase for accessing the private key.
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/// - privateKeyPassphraseHandler.options.password (string): The password to be used by KeyFileHandler.
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/// - invalidCertificateHandler.name: The name of the class (subclass of CertificateHandler)
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/// used for confirming invalid certificates.
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/// - requireTLSv1 (boolean): Require a TLSv1 connection.
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/// - requireTLSv1_1 (boolean): Require a TLSv1.1 connection. Not supported on Windows Embedded Compact.
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/// - requireTLSv1_2 (boolean): Require a TLSv1.2 connection. Not supported on Windows Embedded Compact.
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{
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public:
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typedef Poco::SharedPtr<PrivateKeyPassphraseHandler> PrivateKeyPassphraseHandlerPtr;
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typedef Poco::SharedPtr<InvalidCertificateHandler> InvalidCertificateHandlerPtr;
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Poco::BasicEvent<VerificationErrorArgs> ServerVerificationError;
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/// Fired whenever a certificate verification error is detected by the server during a handshake.
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Poco::BasicEvent<VerificationErrorArgs> ClientVerificationError;
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/// Fired whenever a certificate verification error is detected by the client during a handshake.
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Poco::BasicEvent<std::string> PrivateKeyPassphraseRequired;
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/// Fired when a encrypted certificate is loaded. Not setting the password
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/// in the event parameter will result in a failure to load the certificate.
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static SSLManager& instance();
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/// Returns the instance of the SSLManager singleton.
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void initializeServer(PrivateKeyPassphraseHandlerPtr ptrPassphraseHandler, InvalidCertificateHandlerPtr pCertificateHandler, Context::Ptr pContext);
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/// Initializes the server side of the SSLManager with a default invalid certificate handler and a default context. If this method
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/// is never called the SSLmanager will try to initialize its members from an application configuration.
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///
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/// pCertificateHandler can be 0. However, in this case, event delegates
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/// must be registered with the ServerVerificationError event.
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///
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/// Note: Always create the handlers (or register the corresponding event delegates) before creating
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/// the Context.
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///
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/// Valid initialization code would be:
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/// SharedPtr<InvalidCertificateHandler> pInvalidCertHandler = new ConsoleCertificateHandler;
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/// Context::Ptr pContext = new Context(Context::SERVER_USE, "mycert");
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/// SSLManager::instance().initializeServer(pInvalidCertHandler, pContext);
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void initializeClient(PrivateKeyPassphraseHandlerPtr ptrPassphraseHandler, InvalidCertificateHandlerPtr pCertificateHandler, Context::Ptr ptrContext);
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/// Initializes the client side of the SSLManager with a default invalid certificate handler and a default context. If this method
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/// is never called the SSLmanager will try to initialize its members from an application configuration.
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///
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/// pCertificateHandler can be 0. However, in this case, event delegates
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/// must be registered with the ClientVerificationError event.
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///
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/// Note: Always create the handlers (or register the corresponding event delegates) before creating
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/// the Context, as during creation of the Context the passphrase for the private key might be needed.
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///
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/// Valid initialization code would be:
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/// SharedPtr<InvalidCertificateHandler> pInvalidCertHandler = new ConsoleCertificateHandler;
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/// Context::Ptr pContext = new Context(Context::CLIENT_USE, "");
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/// SSLManager::instance().initializeClient(pInvalidCertHandler, pContext);
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Context::Ptr defaultServerContext();
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/// Returns the default Context used by the server.
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///
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/// Unless initializeServer() has been called, the first call to this method initializes the default Context
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/// from the application configuration.
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Context::Ptr defaultClientContext();
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/// Returns the default Context used by the client.
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///
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/// Unless initializeClient() has been called, the first call to this method initializes the default Context
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/// from the application configuration.
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PrivateKeyPassphraseHandlerPtr serverPassphraseHandler();
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/// Returns the configured passphrase handler of the server. If none is set, the method will create a default one
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/// from an application configuration.
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InvalidCertificateHandlerPtr serverCertificateHandler();
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/// Returns an initialized certificate handler (used by the server to verify client cert) which determines how invalid certificates are treated.
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/// If none is set, it will try to auto-initialize one from an application configuration.
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PrivateKeyPassphraseHandlerPtr clientPassphraseHandler();
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/// Returns the configured passphrase handler of the client. If none is set, the method will create a default one
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/// from an application configuration.
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InvalidCertificateHandlerPtr clientCertificateHandler();
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/// Returns an initialized certificate handler (used by the client to verify server cert) which determines how invalid certificates are treated.
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/// If none is set, it will try to auto-initialize one from an application configuration.
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PrivateKeyFactoryMgr& privateKeyFactoryMgr();
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/// Returns the private key factory manager which stores the
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/// factories for the different registered passphrase handlers for private keys.
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CertificateHandlerFactoryMgr& certificateHandlerFactoryMgr();
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/// Returns the CertificateHandlerFactoryMgr which stores the
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/// factories for the different registered certificate handlers.
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void shutdown();
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/// Shuts down the SSLManager and releases the default Context
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/// objects. After a call to shutdown(), the SSLManager can no
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/// longer be used.
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///
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/// Normally, it's not necessary to call this method directly, as this
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/// will be called either by uninitializeSSL(), or when
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/// the SSLManager instance is destroyed.
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static const std::string CFG_SERVER_PREFIX;
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static const std::string CFG_CLIENT_PREFIX;
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protected:
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SecurityFunctionTableW& securityFunctions();
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private:
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SSLManager();
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/// Creates the SSLManager.
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~SSLManager();
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/// Destroys the SSLManager.
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void initDefaultContext(bool server);
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/// Inits the default context, the first time it is accessed.
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void initEvents(bool server);
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/// Registers delegates at the events according to the configuration.
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void initPassphraseHandler(bool server);
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/// Inits the passphrase handler.
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void initCertificateHandler(bool server);
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/// Inits the certificate handler.
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void loadSecurityLibrary();
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/// Loads the Windows security DLL.
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void unloadSecurityLibrary();
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/// Unloads the Windows security DLL.
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static Poco::Util::AbstractConfiguration& appConfig();
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/// Returns the application configuration.
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///
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/// Throws a InvalidStateException if not application instance
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/// is available.
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HMODULE _hSecurityModule;
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SecurityFunctionTableW _securityFunctions;
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PrivateKeyFactoryMgr _factoryMgr;
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CertificateHandlerFactoryMgr _certHandlerFactoryMgr;
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Context::Ptr _ptrDefaultServerContext;
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PrivateKeyPassphraseHandlerPtr _ptrServerPassphraseHandler;
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InvalidCertificateHandlerPtr _ptrServerCertificateHandler;
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Context::Ptr _ptrDefaultClientContext;
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PrivateKeyPassphraseHandlerPtr _ptrClientPassphraseHandler;
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InvalidCertificateHandlerPtr _ptrClientCertificateHandler;
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Poco::FastMutex _mutex;
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static const std::string CFG_CERT_NAME;
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static const std::string VAL_CERT_NAME;
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static const std::string CFG_CERT_PATH;
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static const std::string VAL_CERT_PATH;
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static const std::string CFG_CERT_STORE;
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static const std::string VAL_CERT_STORE;
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static const std::string CFG_VER_MODE;
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static const Context::VerificationMode VAL_VER_MODE;
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static const std::string CFG_REVOCATION_CHECK;
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static const bool VAL_REVOCATION_CHECK;
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static const std::string CFG_TRUST_ROOTS;
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static const bool VAL_TRUST_ROOTS;
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static const std::string CFG_USE_MACHINE_STORE;
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static const bool VAL_USE_MACHINE_STORE;
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static const std::string CFG_USE_STRONG_CRYPTO;
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static const bool VAL_USE_STRONG_CRYPTO;
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static const std::string CFG_DELEGATE_HANDLER;
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static const std::string VAL_DELEGATE_HANDLER;
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static const std::string CFG_CERTIFICATE_HANDLER;
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static const std::string VAL_CERTIFICATE_HANDLER;
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static const std::string CFG_REQUIRE_TLSV1;
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static const std::string CFG_REQUIRE_TLSV1_1;
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static const std::string CFG_REQUIRE_TLSV1_2;
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friend class Poco::SingletonHolder<SSLManager>;
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friend class SecureSocketImpl;
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friend class Context;
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};
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//
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// inlines
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//
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inline PrivateKeyFactoryMgr& SSLManager::privateKeyFactoryMgr()
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{
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return _factoryMgr;
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}
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inline CertificateHandlerFactoryMgr& SSLManager::certificateHandlerFactoryMgr()
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{
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return _certHandlerFactoryMgr;
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}
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inline SecurityFunctionTableW& SSLManager::securityFunctions()
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{
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return _securityFunctions;
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}
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} } // namespace Poco::Net
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#endif // NetSSL_SSLManager_INCLUDED
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