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Diffstat (limited to '')
| -rw-r--r-- | xmlsecurity/source/xmlsec/mscrypt/securityenvironment_mscryptimpl.cxx | 1118 |
1 files changed, 1118 insertions, 0 deletions
diff --git a/xmlsecurity/source/xmlsec/mscrypt/securityenvironment_mscryptimpl.cxx b/xmlsecurity/source/xmlsec/mscrypt/securityenvironment_mscryptimpl.cxx new file mode 100644 index 000000000..f198f839f --- /dev/null +++ b/xmlsecurity/source/xmlsec/mscrypt/securityenvironment_mscryptimpl.cxx @@ -0,0 +1,1118 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you 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 . + */ + +#include <sal/config.h> + +#include <cstddef> +#include <string.h> + +#if !defined WIN32_LEAN_AND_MEAN +# define WIN32_LEAN_AND_MEAN +#endif +#include <Windows.h> +#include <WinCrypt.h> +#include <sal/macros.h> +#include <osl/thread.h> +#include "securityenvironment_mscryptimpl.hxx" + +#include "x509certificate_mscryptimpl.hxx" +#include <comphelper/servicehelper.hxx> +#include <com/sun/star/lang/XMultiServiceFactory.hpp> +#include <com/sun/star/uno/XComponentContext.hpp> +#include <cppuhelper/supportsservice.hxx> +#include <xmlsec-wrapper.h> +#include "akmngr.hxx" + +#include <biginteger.hxx> + +#include <comphelper/windowserrorstring.hxx> +#include <sal/log.hxx> +#include <rtl/locale.h> +#include <rtl/ref.hxx> +#include <osl/nlsupport.h> +#include <osl/process.h> +#include <o3tl/char16_t2wchar_t.hxx> +#include <svl/cryptosign.hxx> + +using namespace ::com::sun::star; +using namespace ::com::sun::star::lang ; +using ::com::sun::star::lang::XMultiServiceFactory ; +using ::com::sun::star::lang::XSingleServiceFactory ; + +using ::com::sun::star::xml::crypto::XSecurityEnvironment ; +using ::com::sun::star::security::XCertificate ; + +static rtl::Reference<X509Certificate_MSCryptImpl> MswcryCertContextToXCert( PCCERT_CONTEXT cert ) ; + +namespace { + +struct CertErrorToString{ + DWORD error; + char const * name; +}; + +} + +CertErrorToString const arErrStrings[] = +{ + { 0x00000000, "CERT_TRUST_NO_ERROR"}, + { 0x00000001, "CERT_TRUST_IS_NOT_TIME_VALID"}, + { 0x00000002, "CERT_TRUST_IS_NOT_TIME_NESTED"}, + { 0x00000004, "CERT_TRUST_IS_REVOKED" }, + { 0x00000008, "CERT_TRUST_IS_NOT_SIGNATURE_VALID" }, + { 0x00000010, "CERT_TRUST_IS_NOT_SIGNATURE_VALID"}, + { 0x00000020, "CERT_TRUST_IS_UNTRUSTED_ROOT"}, + { 0x00000040, "CERT_TRUST_REVOCATION_STATUS_UNKNOWN"}, + { 0x00000080, "CERT_TRUST_IS_CYCLIC"}, + { 0x00000100, "CERT_TRUST_INVALID_EXTENSION"}, + { 0x00000200, "CERT_TRUST_INVALID_POLICY_CONSTRAINTS"}, + { 0x00000400, "CERT_TRUST_INVALID_BASIC_CONSTRAINTS"}, + { 0x00000800, "CERT_TRUST_INVALID_NAME_CONSTRAINTS"}, + { 0x00001000, "CERT_TRUST_HAS_NOT_SUPPORTED_NAME_CONSTRAINT"}, + { 0x00002000, "CERT_TRUST_HAS_NOT_DEFINED_NAME_CONSTRAINT"}, + { 0x00004000, "CERT_TRUST_HAS_NOT_PERMITTED_NAME_CONSTRAINT"}, + { 0x00008000, "CERT_TRUST_HAS_EXCLUDED_NAME_CONSTRAINT"}, + { 0x01000000, "CERT_TRUST_IS_OFFLINE_REVOCATION"}, + { 0x02000000, "CERT_TRUST_NO_ISSUANCE_CHAIN_POLICY"}, + { 0x04000000, "CERT_TRUST_IS_EXPLICIT_DISTRUST"}, + { 0x08000000, "CERT_TRUST_HAS_NOT_SUPPORTED_CRITICAL_EXT"}, + //Chain errors + { 0x00010000, "CERT_TRUST_IS_PARTIAL_CHAIN"}, + { 0x00020000, "CERT_TRUST_CTL_IS_NOT_TIME_VALID"}, + { 0x00040000, "CERT_TRUST_CTL_IS_NOT_SIGNATURE_VALID"}, + { 0x00080000, "CERT_TRUST_CTL_IS_NOT_VALID_FOR_USAGE"} +}; + +static void traceTrustStatus(DWORD err) +{ + if (err == 0) + SAL_INFO("xmlsecurity.xmlsec", " " << arErrStrings[0].name); + for (std::size_t i = 1; i < SAL_N_ELEMENTS(arErrStrings); i++) + { + if (arErrStrings[i].error & err) + SAL_INFO("xmlsecurity.xmlsec", " " << arErrStrings[i].name); + } +} + +SecurityEnvironment_MSCryptImpl::SecurityEnvironment_MSCryptImpl( const uno::Reference< uno::XComponentContext >& xContext ) : m_hProv( 0 ) , m_pszContainer( nullptr ) , m_hKeyStore( nullptr ), m_hCertStore( nullptr ), m_hMySystemStore(nullptr), m_hRootSystemStore(nullptr), m_hTrustSystemStore(nullptr), m_hCaSystemStore(nullptr), m_bEnableDefault( false ){ + + m_xServiceManager.set(xContext, uno::UNO_QUERY); +} + +SecurityEnvironment_MSCryptImpl::~SecurityEnvironment_MSCryptImpl() { + + if( m_hProv != 0 ) { + CryptReleaseContext( m_hProv, 0 ) ; + m_hProv = 0 ; + } + + if( m_pszContainer != nullptr ) { + //TODO: Don't know whether or not it should be released now. + m_pszContainer = nullptr ; + } + + if( m_hCertStore != nullptr ) { + CertCloseStore( m_hCertStore, CERT_CLOSE_STORE_FORCE_FLAG ) ; + m_hCertStore = nullptr ; + } + + if( m_hKeyStore != nullptr ) { + CertCloseStore( m_hKeyStore, CERT_CLOSE_STORE_FORCE_FLAG ) ; + m_hKeyStore = nullptr ; + } + + //i120675, close the store handles + if( m_hMySystemStore != nullptr ) { + CertCloseStore( m_hMySystemStore, CERT_CLOSE_STORE_CHECK_FLAG ) ; + m_hMySystemStore = nullptr ; + } + + if( m_hRootSystemStore != nullptr ) { + CertCloseStore( m_hRootSystemStore, CERT_CLOSE_STORE_CHECK_FLAG ) ; + m_hRootSystemStore = nullptr ; + } + + if( m_hTrustSystemStore != nullptr ) { + CertCloseStore( m_hTrustSystemStore, CERT_CLOSE_STORE_CHECK_FLAG ) ; + m_hTrustSystemStore = nullptr ; + } + + if( m_hCaSystemStore != nullptr ) { + CertCloseStore( m_hCaSystemStore, CERT_CLOSE_STORE_CHECK_FLAG ) ; + m_hCaSystemStore = nullptr ; + } +} + +/* XServiceInfo */ +OUString SAL_CALL SecurityEnvironment_MSCryptImpl::getImplementationName() { + return "com.sun.star.xml.crypto.SecurityEnvironment"; +} + +/* XServiceInfo */ +sal_Bool SAL_CALL SecurityEnvironment_MSCryptImpl::supportsService( const OUString& serviceName) { + return cppu::supportsService(this, serviceName); +} +/* XServiceInfo */ +uno::Sequence< OUString > SAL_CALL SecurityEnvironment_MSCryptImpl::getSupportedServiceNames() { + return { "com.sun.star.xml.crypto.SecurityEnvironment" }; +} + +/* XUnoTunnel */ +UNO3_GETIMPLEMENTATION_IMPL(SecurityEnvironment_MSCryptImpl); + +HCRYPTPROV SecurityEnvironment_MSCryptImpl::getCryptoProvider() { + return m_hProv ; +} + +void SecurityEnvironment_MSCryptImpl::setCryptoProvider( HCRYPTPROV aProv ) { + if( m_hProv != 0 ) { + CryptReleaseContext( m_hProv, 0 ) ; + m_hProv = 0 ; + } + + if( aProv != 0 ) { + m_hProv = aProv ; + } +} + +LPCTSTR SecurityEnvironment_MSCryptImpl::getKeyContainer() { + return m_pszContainer ; +} + +void SecurityEnvironment_MSCryptImpl::setKeyContainer( LPCTSTR aKeyContainer ) { + //TODO: Don't know whether or not it should be copied. + m_pszContainer = aKeyContainer ; +} + + +HCERTSTORE SecurityEnvironment_MSCryptImpl::getCryptoSlot() { + return m_hKeyStore ; +} + +void SecurityEnvironment_MSCryptImpl::setCryptoSlot( HCERTSTORE aSlot) { + if( m_hKeyStore != nullptr ) { + CertCloseStore( m_hKeyStore, CERT_CLOSE_STORE_FORCE_FLAG ) ; + m_hKeyStore = nullptr ; + } + + if( aSlot != nullptr ) { + m_hKeyStore = CertDuplicateStore( aSlot ) ; + } +} + +HCERTSTORE SecurityEnvironment_MSCryptImpl::getCertDb() { + return m_hCertStore ; +} + +void SecurityEnvironment_MSCryptImpl::setCertDb( HCERTSTORE aCertDb ) { + if( m_hCertStore != nullptr ) { + CertCloseStore( m_hCertStore, CERT_CLOSE_STORE_FORCE_FLAG ) ; + m_hCertStore = nullptr ; + } + + if( aCertDb != nullptr ) { + m_hCertStore = CertDuplicateStore( aCertDb ) ; + } +} + +#ifdef SAL_LOG_INFO + +// Based on sample code from MSDN + +static OUString get_system_name(const void *pvSystemStore, + DWORD dwFlags) +{ + LPCWSTR ppwszSystemName; + if (dwFlags & CERT_SYSTEM_STORE_RELOCATE_FLAG) + { + _CERT_SYSTEM_STORE_RELOCATE_PARA const * pRelocatePara; + pRelocatePara = static_cast<_CERT_SYSTEM_STORE_RELOCATE_PARA const *>(pvSystemStore); + ppwszSystemName = pRelocatePara->pwszSystemStore; + } + else + { + ppwszSystemName = static_cast<LPCWSTR>(pvSystemStore); + } + return OUString(o3tl::toU(ppwszSystemName)); +} + +extern "C" { + +static BOOL WINAPI cert_enum_physical_store_callback(const void *, + DWORD dwFlags, + LPCWSTR pwszStoreName, + PCERT_PHYSICAL_STORE_INFO, + void *, + void *) +{ + OUString name(o3tl::toU(pwszStoreName)); + if (dwFlags & CERT_PHYSICAL_STORE_PREDEFINED_ENUM_FLAG) + name += " (implicitly created)"; + SAL_INFO("xmlsecurity.xmlsec", " Physical store: " << name); + + return TRUE; +} + +static BOOL WINAPI cert_enum_system_store_callback(const void *pvSystemStore, + DWORD dwFlags, + PCERT_SYSTEM_STORE_INFO, + void *, + void *) +{ + SAL_INFO("xmlsecurity.xmlsec", "System store: " << get_system_name(pvSystemStore, dwFlags)); + + if (!CertEnumPhysicalStore(pvSystemStore, + dwFlags, + nullptr, + cert_enum_physical_store_callback)) + { + DWORD dwErr = GetLastError(); + if (!(ERROR_FILE_NOT_FOUND == dwErr || + ERROR_NOT_SUPPORTED == dwErr)) + { + SAL_WARN("xmlsecurity.xmlsec", "CertEnumPhysicalStore failed:" << WindowsErrorString(GetLastError())); + } + } + return TRUE; +} + +} + +#endif + +//Methods from XSecurityEnvironment +uno::Sequence< uno::Reference < XCertificate > > SecurityEnvironment_MSCryptImpl::getPersonalCertificates() +{ + sal_Int32 length ; + rtl::Reference<X509Certificate_MSCryptImpl> xcert ; + std::vector< rtl::Reference<X509Certificate_MSCryptImpl> > certsList ; + PCCERT_CONTEXT pCertContext = nullptr; + + //firstly, we try to find private keys in given key store. + if( m_hKeyStore != nullptr ) { + pCertContext = CertEnumCertificatesInStore( m_hKeyStore, pCertContext ); + while (pCertContext) + { + xcert = MswcryCertContextToXCert( pCertContext ) ; + if( xcert.is() ) + certsList.push_back( xcert ) ; + pCertContext = CertEnumCertificatesInStore( m_hKeyStore, pCertContext ); + } + } + + //Thirdly, we try to find certificate from system default key store. + if( m_bEnableDefault ) { + HCERTSTORE hSystemKeyStore ; + DWORD dwKeySpec; + NCRYPT_KEY_HANDLE hCryptKey; + +#ifdef SAL_LOG_INFO + CertEnumSystemStore(CERT_SYSTEM_STORE_CURRENT_USER, nullptr, nullptr, cert_enum_system_store_callback); +#endif + + hSystemKeyStore = CertOpenSystemStoreW( 0, L"MY" ) ; + if( hSystemKeyStore != nullptr ) { + pCertContext = CertEnumCertificatesInStore( hSystemKeyStore, pCertContext ); + while (pCertContext) + { + // for checking whether the certificate is a personal certificate or not. + DWORD dwFlags = CRYPT_ACQUIRE_COMPARE_KEY_FLAG | CRYPT_ACQUIRE_ONLY_NCRYPT_KEY_FLAG; + HCRYPTPROV_OR_NCRYPT_KEY_HANDLE* phCryptProvOrNCryptKey = &hCryptKey; + if(!(CryptAcquireCertificatePrivateKey(pCertContext, + dwFlags, + nullptr, + phCryptProvOrNCryptKey, + &dwKeySpec, + nullptr))) + { + // Not Privatekey found. SKIP this one. + pCertContext = CertEnumCertificatesInStore( hSystemKeyStore, pCertContext ); + continue; + } + // then TODO : Check the personal cert is valid or not. + + xcert = MswcryCertContextToXCert( pCertContext ) ; + if( xcert.is() ) + certsList.push_back( xcert ) ; + pCertContext = CertEnumCertificatesInStore( hSystemKeyStore, pCertContext ); + } + } + + CertCloseStore( hSystemKeyStore, CERT_CLOSE_STORE_CHECK_FLAG ) ; + } + + length = certsList.size() ; + if( length != 0 ) { + int i = 0; + uno::Sequence< uno::Reference< XCertificate > > certSeq( length ) ; + auto pcertSeq = certSeq.getArray(); + + for( const auto& rXCert : certsList ) { + pcertSeq[i] = rXCert ; + ++i; + } + + return certSeq ; + } + + return uno::Sequence< uno::Reference< XCertificate > >() ; +} + + +uno::Reference< XCertificate > SecurityEnvironment_MSCryptImpl::getCertificate( const OUString& issuerName, const uno::Sequence< sal_Int8 >& serialNumber ) { + unsigned int i ; + rtl::Reference<X509Certificate_MSCryptImpl> xcert ; + PCCERT_CONTEXT pCertContext = nullptr ; + HCERTSTORE hCertStore = nullptr ; + CRYPT_INTEGER_BLOB cryptSerialNumber ; + CERT_INFO certInfo ; + + // for correct encoding + rtl_Locale *pLocale = nullptr ; + osl_getProcessLocale( &pLocale ) ; + + //Create cert info from issue and serial + LPCWSTR pszName = o3tl::toW( issuerName.getStr() ); + + if( ! ( CertStrToNameW( + X509_ASN_ENCODING | PKCS_7_ASN_ENCODING , + pszName , + CERT_X500_NAME_STR | CERT_NAME_STR_REVERSE_FLAG | CERT_NAME_STR_ENABLE_UTF8_UNICODE_FLAG, + nullptr , + nullptr , + &certInfo.Issuer.cbData, nullptr ) ) + ) { + return nullptr ; + } + + certInfo.Issuer.pbData = static_cast<BYTE*>(malloc( certInfo.Issuer.cbData )); + if(!certInfo.Issuer.pbData) + throw uno::RuntimeException() ; + + if( ! ( CertStrToNameW( + X509_ASN_ENCODING | PKCS_7_ASN_ENCODING , + pszName , + CERT_X500_NAME_STR | CERT_NAME_STR_REVERSE_FLAG | CERT_NAME_STR_ENABLE_UTF8_UNICODE_FLAG, + nullptr , + certInfo.Issuer.pbData , + &certInfo.Issuer.cbData, nullptr ) ) + ) { + free( certInfo.Issuer.pbData ) ; + return nullptr ; + } + + //Get the SerialNumber + cryptSerialNumber.cbData = serialNumber.getLength() ; + cryptSerialNumber.pbData = static_cast<BYTE*>(malloc( cryptSerialNumber.cbData)); + if (!cryptSerialNumber.pbData) + { + free( certInfo.Issuer.pbData ) ; + throw uno::RuntimeException() ; + } + for( i = 0; i < cryptSerialNumber.cbData; i ++ ) + cryptSerialNumber.pbData[i] = serialNumber[ cryptSerialNumber.cbData - i - 1 ] ; + + certInfo.SerialNumber.cbData = cryptSerialNumber.cbData ; + certInfo.SerialNumber.pbData = cryptSerialNumber.pbData ; + + // Get the Cert from all store. + for( i = 0 ; i < 6 ; i ++ ) + { + switch(i) + { + case 0: + if(m_hKeyStore == nullptr) continue ; + hCertStore = m_hKeyStore ; + break; + case 1: + if(m_hCertStore == nullptr) continue ; + hCertStore = m_hCertStore ; + break; + case 2: + hCertStore = CertOpenSystemStoreW( 0, L"MY" ) ; + if(hCertStore == nullptr || !m_bEnableDefault) continue ; + break; + case 3: + hCertStore = CertOpenSystemStoreW( 0, L"Root" ) ; + if(hCertStore == nullptr || !m_bEnableDefault) continue ; + break; + case 4: + hCertStore = CertOpenSystemStoreW( 0, L"Trust" ) ; + if(hCertStore == nullptr || !m_bEnableDefault) continue ; + break; + case 5: + hCertStore = CertOpenSystemStoreW( 0, L"CA" ) ; + if(hCertStore == nullptr || !m_bEnableDefault) continue ; + break; + default: + i=6; + continue; + } + +/******************************************************************************* + * This code reserved for remind us there are another way to find one cert by + * IssuerName&serialnumber. You can use the code to replaced the function + * CertFindCertificateInStore IF and ONLY IF you must find one special cert in + * certStore but can not be found by CertFindCertificateInStore , then , you + * should also change the same part in libxmlsec/.../src/mscrypto/x509vfy.c#875. + * By Chandler Peng(chandler.peng@sun.com) + *****/ +/******************************************************************************* + pCertContext = NULL ; + found = 0; + do{ + // 1. enum the certs has same string in the issuer string. + pCertContext = CertEnumCertificatesInStore( hCertStore , pCertContext ) ; + if( pCertContext != NULL ) + { + // 2. check the cert's issuer name . + char* issuer = NULL ; + DWORD cbIssuer = 0 ; + + cbIssuer = CertNameToStr( + X509_ASN_ENCODING | PKCS_7_ASN_ENCODING , + &( pCertContext->pCertInfo->Issuer ), + CERT_X500_NAME_STR | CERT_NAME_STR_REVERSE_FLAG , + NULL, 0 + ) ; + + if( cbIssuer == 0 ) continue ; // discard this cert; + + issuer = (char *)malloc( cbIssuer ) ; + if( issuer == NULL ) // discard this cert; + { + free( cryptSerialNumber.pbData) ; + free( certInfo.Issuer.pbData ) ; + CertFreeCertificateContext( pCertContext ) ; + if(i != 0 && i != 1) CertCloseStore( hCertStore, CERT_CLOSE_STORE_CHECK_FLAG ) ; + throw RuntimeException() ; + } + + cbIssuer = CertNameToStr( + X509_ASN_ENCODING | PKCS_7_ASN_ENCODING , + &( pCertContext->pCertInfo->Issuer ), + CERT_X500_NAME_STR | CERT_NAME_STR_REVERSE_FLAG , + issuer, cbIssuer + ) ; + + if( cbIssuer <= 0 ) + { + free( issuer ) ; + continue ;// discard this cert; + } + + if(strncmp(pszName , issuer , cbIssuer) != 0) + { + free( issuer ) ; + continue ;// discard this cert; + } + free( issuer ) ; + + // 3. check the serial number. + if( memcmp( cryptSerialNumber.pbData , pCertContext->pCertInfo->SerialNumber.pbData , cryptSerialNumber.cbData ) != 0 ) + { + continue ;// discard this cert; + } + + // 4. confirm and break; + found = 1; + break ; + } + + }while(pCertContext); + + if(i != 0 && i != 1) CertCloseStore( hCertStore, CERT_CLOSE_STORE_CHECK_FLAG ) ; + if( found != 0 ) break; // Found the certificate. +********************************************************************************/ + + pCertContext = CertFindCertificateInStore( + hCertStore, + X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, + 0, + CERT_FIND_SUBJECT_CERT, + &certInfo, + nullptr + ) ; + + if(i != 0 && i != 1) CertCloseStore( hCertStore, CERT_CLOSE_STORE_CHECK_FLAG ) ; + if( pCertContext != nullptr ) break ; // Found the certificate. + + } + + free(cryptSerialNumber.pbData); + free(certInfo.Issuer.pbData); + + if( pCertContext != nullptr ) { + xcert = MswcryCertContextToXCert(pCertContext); + CertFreeCertificateContext(pCertContext); + } + + return xcert ; +} + +uno::Reference< XCertificate > SecurityEnvironment_MSCryptImpl::getCertificate( const OUString& issuerName, const OUString& serialNumber ) { + uno::Sequence< sal_Int8 > serial = xmlsecurity::numericStringToBigInteger( serialNumber ) ; + return getCertificate( issuerName, serial ) ; +} + +uno::Sequence< uno::Reference < XCertificate > > SecurityEnvironment_MSCryptImpl::buildCertificatePath( const uno::Reference< XCertificate >& begin ) { + PCCERT_CHAIN_CONTEXT pChainContext ; + PCCERT_CONTEXT pCertContext ; + + CERT_ENHKEY_USAGE enhKeyUsage ; + CERT_USAGE_MATCH certUsage ; + CERT_CHAIN_PARA chainPara ; + + enhKeyUsage.cUsageIdentifier = 0 ; + enhKeyUsage.rgpszUsageIdentifier = nullptr ; + certUsage.dwType = USAGE_MATCH_TYPE_AND ; + certUsage.Usage = enhKeyUsage ; + chainPara.cbSize = sizeof( CERT_CHAIN_PARA ) ; + chainPara.RequestedUsage = certUsage ; + + uno::Reference< XUnoTunnel > xCertTunnel( begin, uno::UNO_QUERY_THROW ) ; + const auto* xcert = comphelper::getFromUnoTunnel<X509Certificate_MSCryptImpl>(xCertTunnel); + if( xcert == nullptr ) { + throw uno::RuntimeException() ; + } + + pCertContext = xcert->getMswcryCert() ; + + pChainContext = nullptr ; + + bool bChain = false; + if( pCertContext != nullptr ) + { + HCERTSTORE hAdditionalStore = nullptr; + HCERTSTORE hCollectionStore = nullptr; + if (m_hCertStore && m_hKeyStore) + { + //Merge m_hCertStore and m_hKeyStore into one store. + hCollectionStore = CertOpenStore( + CERT_STORE_PROV_COLLECTION , + 0 , + 0 , + 0 , + nullptr + ) ; + if (hCollectionStore != nullptr) + { + CertAddStoreToCollection ( + hCollectionStore , + m_hCertStore , + CERT_PHYSICAL_STORE_ADD_ENABLE_FLAG , + 0) ; + CertAddStoreToCollection ( + hCollectionStore , + m_hKeyStore, + CERT_PHYSICAL_STORE_ADD_ENABLE_FLAG , + 0) ; + hAdditionalStore = hCollectionStore; + } + + } + + //if the merge of both stores failed then we add only m_hCertStore + if (hAdditionalStore == nullptr && m_hCertStore) + hAdditionalStore = m_hCertStore; + else if (hAdditionalStore == nullptr && m_hKeyStore) + hAdditionalStore = m_hKeyStore; + else + hAdditionalStore = nullptr; + + //CertGetCertificateChain searches by default in MY, CA, ROOT and TRUST + bChain = CertGetCertificateChain( + nullptr , + pCertContext , + nullptr , //use current system time + hAdditionalStore, + &chainPara , + CERT_CHAIN_REVOCATION_CHECK_CHAIN | CERT_CHAIN_TIMESTAMP_TIME , + nullptr , + &pChainContext); + if (!bChain) + pChainContext = nullptr; + + //Close the additional store + CertCloseStore(hCollectionStore, CERT_CLOSE_STORE_CHECK_FLAG); + } + + if(bChain && pChainContext != nullptr && pChainContext->cChain > 0 ) + { + PCCERT_CONTEXT pCertInChain ; + PCERT_SIMPLE_CHAIN pCertChain ; + rtl::Reference<X509Certificate_MSCryptImpl> pCert ; + + pCertChain = pChainContext->rgpChain[0] ; + if( pCertChain->cElement ) { + uno::Sequence< uno::Reference< XCertificate > > xCertChain( pCertChain->cElement ) ; + auto pxCertChain = xCertChain.getArray(); + + for( unsigned int i = 0 ; i < pCertChain->cElement ; i ++ ) { + if( pCertChain->rgpElement[i] ) + pCertInChain = pCertChain->rgpElement[i]->pCertContext ; + else + pCertInChain = nullptr ; + + if( pCertInChain != nullptr ) { + pCert = MswcryCertContextToXCert( pCertInChain ) ; + if( pCert.is() ) + pxCertChain[i] = pCert ; + } + } + + CertFreeCertificateChain( pChainContext ) ; + pChainContext = nullptr ; + + return xCertChain ; + } + } + if (pChainContext) + CertFreeCertificateChain(pChainContext); + + return uno::Sequence< uno::Reference < XCertificate > >(); +} + +uno::Reference< XCertificate > SecurityEnvironment_MSCryptImpl::createCertificateFromRaw( const uno::Sequence< sal_Int8 >& rawCertificate ) { + rtl::Reference<X509Certificate_MSCryptImpl> xcert ; + + if( rawCertificate.getLength() > 0 ) { + xcert = new X509Certificate_MSCryptImpl() ; + xcert->setRawCert( rawCertificate ) ; + } + + return xcert ; +} + +uno::Reference< XCertificate > SecurityEnvironment_MSCryptImpl::createCertificateFromAscii( const OUString& asciiCertificate ) { + + OString oscert = OUStringToOString( asciiCertificate , RTL_TEXTENCODING_ASCII_US ) ; + + xmlChar* chCert = xmlStrndup( reinterpret_cast<const xmlChar*>(oscert.getStr()), static_cast<int>(oscert.getLength()) ) ; + + xmlSecSize certSize = xmlSecBase64Decode( chCert, chCert, xmlStrlen( chCert ) ) ; + + uno::Sequence< sal_Int8 > rawCert( certSize ) ; + auto rawCertRange = asNonConstRange(rawCert); + for( xmlSecSize i = 0 ; i < certSize ; i ++ ) + rawCertRange[i] = *( chCert + i ) ; + + xmlFree( chCert ) ; + + return createCertificateFromRaw( rawCert ) ; +} + + +static HCERTSTORE getCertStoreForIntermediatCerts( + const uno::Sequence< uno::Reference< css::security::XCertificate > >& seqCerts) +{ + HCERTSTORE store = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0, 0, nullptr); + if (store == nullptr) + return nullptr; + + for (int i = 0; i < seqCerts.getLength(); i++) + { + SAL_INFO("xmlsecurity.xmlsec", "Added temporary certificate: " << seqCerts[i]->getSubjectName()); + + uno::Sequence<sal_Int8> data = seqCerts[i]->getEncoded(); + PCCERT_CONTEXT cert = CertCreateCertificateContext( + X509_ASN_ENCODING, reinterpret_cast<const BYTE*>(&data[0]), data.getLength()); + //Adding the certificate creates a copy and not just increases the ref count + //Therefore we free later the certificate that we now add + CertAddCertificateContextToStore(store, cert, CERT_STORE_ADD_ALWAYS, nullptr); + CertFreeCertificateContext(cert); + } + return store; +} + +static bool CheckUnitTestStore(PCCERT_CHAIN_CONTEXT const pChainContext, DWORD ignoreFlags) +{ + bool ret = false; + static char const*const pVar = getenv("LIBO_TEST_CRYPTOAPI_PKCS7"); + if (!pVar) + { + return ret; + } + if (pChainContext->cChain == 0) + { + return ret; + } + PCERT_SIMPLE_CHAIN pSimpleChain = pChainContext->rgpChain[0]; + // check if untrusted root is the only problem + if (pSimpleChain->TrustStatus.dwErrorStatus & ~(CERT_TRUST_IS_UNTRUSTED_ROOT | ignoreFlags)) + { + return ret; + } + + // leak this store, re-opening is a waste of time in tests + static HCERTSTORE const hExtra = CertOpenStore( + CERT_STORE_PROV_FILENAME_A, + PKCS_7_ASN_ENCODING | X509_ASN_ENCODING, + 0, + CERT_STORE_OPEN_EXISTING_FLAG | CERT_STORE_READONLY_FLAG, + OString(OString::Concat(pVar) + "/test.p7b").getStr()); + assert(hExtra != nullptr); + if (pSimpleChain->cElement < 1) + { + SAL_WARN("xmlsecurity.xmlsec", "unexpected empty chain"); + return ret; + } + PCCERT_CONTEXT const pRoot(pSimpleChain->rgpElement[pSimpleChain->cElement-1]->pCertContext); + PCCERT_CONTEXT const pIssuerCert = CertFindCertificateInStore( + hExtra, + PKCS_7_ASN_ENCODING | X509_ASN_ENCODING, + 0, + CERT_FIND_SUBJECT_NAME, + &pRoot->pCertInfo->Subject, + nullptr); + if (pIssuerCert) + { + // check that it signed itself + DWORD flags = CERT_STORE_SIGNATURE_FLAG; + bool result = CertVerifySubjectCertificateContext(pRoot, pIssuerCert, &flags); + if (result && flags == 0) + { + ret = true; + } + } + CertFreeCertificateContext(pIssuerCert); + return ret; +} + +//We return only valid or invalid, as long as the API documentation expresses +//explicitly that all validation steps are carried out even if one or several +//errors occur. See also +//http://wiki.openoffice.org/wiki/Certificate_Path_Validation#Validation_status +sal_Int32 SecurityEnvironment_MSCryptImpl::verifyCertificate( + const uno::Reference< css::security::XCertificate >& aCert, + const uno::Sequence< uno::Reference< css::security::XCertificate > >& seqCerts) +{ + sal_Int32 validity = css::security::CertificateValidity::INVALID; + PCCERT_CHAIN_CONTEXT pChainContext = nullptr; + PCCERT_CONTEXT pCertContext = nullptr; + + uno::Reference< XUnoTunnel > xCertTunnel( aCert, uno::UNO_QUERY_THROW ) ; + + SAL_INFO("xmlsecurity.xmlsec", "Start verification of certificate: " << aCert->getSubjectName()); + + const auto* xcert = comphelper::getFromUnoTunnel<X509Certificate_MSCryptImpl>(xCertTunnel); + if( xcert == nullptr ) { + throw uno::RuntimeException() ; + } + + pCertContext = xcert->getMswcryCert() ; + + CERT_ENHKEY_USAGE enhKeyUsage ; + CERT_USAGE_MATCH certUsage ; + CERT_CHAIN_PARA chainPara = {}; + + //Prepare parameter for CertGetCertificateChain + enhKeyUsage.cUsageIdentifier = 0 ; + enhKeyUsage.rgpszUsageIdentifier = nullptr ; + certUsage.dwType = USAGE_MATCH_TYPE_AND ; + certUsage.Usage = enhKeyUsage ; + chainPara.cbSize = sizeof( CERT_CHAIN_PARA ) ; + chainPara.RequestedUsage = certUsage ; + + + HCERTSTORE hCollectionStore = nullptr; + HCERTSTORE hIntermediateCertsStore = nullptr; + bool bChain = false; + if( pCertContext != nullptr ) + { + hIntermediateCertsStore = + getCertStoreForIntermediatCerts(seqCerts); + + //Merge m_hCertStore and m_hKeyStore and the store of the intermediate + //certificates into one store. + hCollectionStore = CertOpenStore( + CERT_STORE_PROV_COLLECTION , + 0 , + 0 , + 0 , + nullptr + ) ; + if (hCollectionStore != nullptr) + { + CertAddStoreToCollection ( + hCollectionStore , + m_hCertStore , + CERT_PHYSICAL_STORE_ADD_ENABLE_FLAG , + 0) ; + CertAddStoreToCollection ( + hCollectionStore , + m_hKeyStore, + CERT_PHYSICAL_STORE_ADD_ENABLE_FLAG , + 0) ; + CertAddStoreToCollection ( + hCollectionStore, + hIntermediateCertsStore, + CERT_PHYSICAL_STORE_ADD_ENABLE_FLAG, + 0); + + } + + //CertGetCertificateChain searches by default in MY, CA, ROOT and TRUST + //We do not check revocation of the root. In most cases there are none. + //Then we would get CERT_TRUST_REVOCATION_STATUS_UNKNOWN + SAL_INFO("xmlsecurity.xmlsec", "Verifying cert using revocation information."); + bChain = CertGetCertificateChain( + nullptr , + pCertContext , + nullptr , //use current system time + hCollectionStore, + &chainPara , + CERT_CHAIN_REVOCATION_CHECK_CHAIN | CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT, + nullptr , + &pChainContext); + + if (bChain && pChainContext->cChain > 0) + { + SAL_INFO("xmlsecurity.xmlsec", "Overall error status (all chains):"); + traceTrustStatus(pChainContext->TrustStatus.dwErrorStatus); + //highest quality chains come first + PCERT_SIMPLE_CHAIN pSimpleChain = pChainContext->rgpChain[0]; + SAL_INFO("xmlsecurity.xmlsec", "Error status of first chain:"); + traceTrustStatus(pSimpleChain->TrustStatus.dwErrorStatus); + + //CERT_TRUST_REVOCATION_STATUS_UNKNOWN is also set if a certificate + //has no AIA(OCSP) or CRLDP extension and there is no CRL locally installed. + DWORD revocationFlags = CERT_TRUST_REVOCATION_STATUS_UNKNOWN | + CERT_TRUST_IS_OFFLINE_REVOCATION; + DWORD otherErrorsMask = ~revocationFlags; + if (!(pSimpleChain->TrustStatus.dwErrorStatus & otherErrorsMask) + || CheckUnitTestStore(pChainContext, revocationFlags)) + + { + //No errors except maybe those caused by missing revocation information + //Check if there are errors + if ( pSimpleChain->TrustStatus.dwErrorStatus & revocationFlags) + { + //No revocation information. Because MSDN documentation is not + //clear about if all other tests are performed if an error occurs, + //we test again, without requiring revocation checking. + CertFreeCertificateChain(pChainContext); + pChainContext = nullptr; + SAL_INFO("xmlsecurity.xmlsec", "Checking again but without requiring revocation information."); + bChain = CertGetCertificateChain( + nullptr , + pCertContext , + nullptr , //use current system time + hCollectionStore, + &chainPara , + 0, + nullptr , + &pChainContext); + if (bChain + && pChainContext->cChain > 0 + && pChainContext->rgpChain[0]->TrustStatus.dwErrorStatus == CERT_TRUST_NO_ERROR) + { + SAL_INFO("xmlsecurity.xmlsec", "Certificate is valid."); + validity = css::security::CertificateValidity::VALID; + } + else if (CheckUnitTestStore(pChainContext, 0)) + { + SAL_INFO("xmlsecurity.xmlsec", "root certificate found in extra test store"); + validity = css::security::CertificateValidity::VALID; + } + else + { + SAL_INFO("xmlsecurity.xmlsec", "Certificate is invalid."); + } + } + else + { + //valid and revocation information available + SAL_INFO("xmlsecurity.xmlsec", "Certificate is valid."); + validity = css::security::CertificateValidity::VALID; + } + } + else + { + //invalid + SAL_INFO("xmlsecurity.xmlsec", "Certificate is invalid."); + validity = css::security::CertificateValidity::INVALID ; + } + } + else + { + SAL_INFO("xmlsecurity.xmlsec", "CertGetCertificateChain failed."); + } + } + + if (pChainContext) + { + CertFreeCertificateChain(pChainContext); + pChainContext = nullptr; + } + + //Close the additional store, do not destroy the contained certs + CertCloseStore(hCollectionStore, CERT_CLOSE_STORE_CHECK_FLAG); + //Close the temporary store containing the intermediate certificates and make + //sure all certificates are deleted. + CertCloseStore(hIntermediateCertsStore, CERT_CLOSE_STORE_CHECK_FLAG); + + return validity ; +} + +sal_Int32 SecurityEnvironment_MSCryptImpl::getCertificateCharacters( const css::uno::Reference< css::security::XCertificate >& aCert ) { + sal_Int32 characters ; + PCCERT_CONTEXT pCertContext ; + + uno::Reference< XUnoTunnel > xCertTunnel( aCert, uno::UNO_QUERY_THROW ) ; + const auto* xcert = comphelper::getFromUnoTunnel<X509Certificate_MSCryptImpl>(xCertTunnel); + if( xcert == nullptr ) { + throw uno::RuntimeException() ; + } + + pCertContext = xcert->getMswcryCert() ; + + characters = 0x00000000 ; + + //Firstly, make sentence whether or not the cert is self-signed. + if( CertCompareCertificateName( X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, &(pCertContext->pCertInfo->Subject), &(pCertContext->pCertInfo->Issuer) ) ) { + characters |= css::security::CertificateCharacters::SELF_SIGNED ; + } else { + characters &= ~ css::security::CertificateCharacters::SELF_SIGNED ; + } + + //Secondly, make sentence whether or not the cert has a private key. + { + BOOL fCallerFreeProv ; + DWORD dwKeySpec ; + NCRYPT_KEY_HANDLE hKey = 0; + DWORD dwFlags = CRYPT_ACQUIRE_ONLY_NCRYPT_KEY_FLAG; + HCRYPTPROV_OR_NCRYPT_KEY_HANDLE* phCryptProvOrNCryptKey = &hKey; + if( CryptAcquireCertificatePrivateKey( pCertContext , + dwFlags, + nullptr , + phCryptProvOrNCryptKey, + &dwKeySpec, + &fCallerFreeProv ) + ) { + characters |= css::security::CertificateCharacters::HAS_PRIVATE_KEY ; + + if (hKey && fCallerFreeProv) + NCryptFreeObject(hKey); + } else { + characters &= ~ css::security::CertificateCharacters::HAS_PRIVATE_KEY ; + } + } + return characters ; +} + +void SecurityEnvironment_MSCryptImpl::enableDefaultCrypt( bool enable ) { + m_bEnableDefault = enable ; +} + +bool SecurityEnvironment_MSCryptImpl::defaultEnabled() { + return m_bEnableDefault ; +} + +static rtl::Reference<X509Certificate_MSCryptImpl> MswcryCertContextToXCert( PCCERT_CONTEXT cert ) +{ + rtl::Reference<X509Certificate_MSCryptImpl> xcert ; + + if( cert != nullptr ) { + xcert = new X509Certificate_MSCryptImpl() ; + xcert->setMswcryCert( cert ) ; + } + + return xcert ; +} + +OUString SecurityEnvironment_MSCryptImpl::getSecurityEnvironmentInformation() +{ + return "Microsoft Crypto API"; +} + +xmlSecKeysMngrPtr SecurityEnvironment_MSCryptImpl::createKeysManager() { + + /*- + * The following lines is based on the of xmlsec-mscrypto crypto engine + */ + xmlSecKeysMngrPtr pKeysMngr = xmlsecurity::MSCryptoAppliedKeysMngrCreate() ; + if( pKeysMngr == nullptr ) + throw uno::RuntimeException() ; + + /*- + * Adopt system default certificate store. + */ + if( defaultEnabled() ) { + //Add system key store into the keys manager. + m_hMySystemStore = CertOpenSystemStoreW( 0, L"MY" ) ; + if( m_hMySystemStore != nullptr ) { + if( xmlsecurity::MSCryptoAppliedKeysMngrAdoptKeyStore( pKeysMngr, m_hMySystemStore ) < 0 ) { + CertCloseStore( m_hMySystemStore, CERT_CLOSE_STORE_CHECK_FLAG ) ; + m_hMySystemStore = nullptr; + throw uno::RuntimeException() ; + } + m_hMySystemStore = nullptr; + } + + //Add system root store into the keys manager. + m_hRootSystemStore = CertOpenSystemStoreW( 0, L"Root" ) ; + if( m_hRootSystemStore != nullptr ) { + if( xmlsecurity::MSCryptoAppliedKeysMngrAdoptTrustedStore( pKeysMngr, m_hRootSystemStore ) < 0 ) { + CertCloseStore( m_hRootSystemStore, CERT_CLOSE_STORE_CHECK_FLAG ) ; + m_hRootSystemStore = nullptr; + throw uno::RuntimeException() ; + } + m_hRootSystemStore = nullptr; + } + + //Add system trusted store into the keys manager. + m_hTrustSystemStore = CertOpenSystemStoreW( 0, L"Trust" ) ; + if( m_hTrustSystemStore != nullptr ) { + if( xmlsecurity::MSCryptoAppliedKeysMngrAdoptUntrustedStore( pKeysMngr, m_hTrustSystemStore ) < 0 ) { + CertCloseStore( m_hTrustSystemStore, CERT_CLOSE_STORE_CHECK_FLAG ) ; + m_hTrustSystemStore = nullptr; + throw uno::RuntimeException() ; + } + m_hTrustSystemStore = nullptr; + } + + //Add system CA store into the keys manager. + m_hCaSystemStore = CertOpenSystemStoreW( 0, L"CA" ) ; + if( m_hCaSystemStore != nullptr ) { + if( xmlsecurity::MSCryptoAppliedKeysMngrAdoptUntrustedStore( pKeysMngr, m_hCaSystemStore ) < 0 ) { + CertCloseStore( m_hCaSystemStore, CERT_CLOSE_STORE_CHECK_FLAG ) ; + m_hCaSystemStore = nullptr; + throw uno::RuntimeException() ; + } + m_hCaSystemStore = nullptr; + } + } + + return pKeysMngr ; +} +void SecurityEnvironment_MSCryptImpl::destroyKeysManager(xmlSecKeysMngrPtr pKeysMngr) { + if( pKeysMngr != nullptr ) { + xmlSecKeysMngrDestroy( pKeysMngr ) ; + } +} + +extern "C" SAL_DLLPUBLIC_EXPORT uno::XInterface* +com_sun_star_xml_crypto_SecurityEnvironment_get_implementation( + uno::XComponentContext* pCtx, uno::Sequence<uno::Any> const& /*rSeq*/) +{ + return cppu::acquire(new SecurityEnvironment_MSCryptImpl(pCtx)); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |