diff options
Diffstat (limited to 'xmlsecurity/source/xmlsec/nss/securityenvironment_nssimpl.cxx')
| -rw-r--r-- | xmlsecurity/source/xmlsec/nss/securityenvironment_nssimpl.cxx | 890 |
1 files changed, 890 insertions, 0 deletions
diff --git a/xmlsecurity/source/xmlsec/nss/securityenvironment_nssimpl.cxx b/xmlsecurity/source/xmlsec/nss/securityenvironment_nssimpl.cxx new file mode 100644 index 000000000..f6c35257f --- /dev/null +++ b/xmlsecurity/source/xmlsec/nss/securityenvironment_nssimpl.cxx @@ -0,0 +1,890 @@ +/* -*- 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 "nssrenam.h" +#include <cert.h> +#include <secerr.h> +#include <ocsp.h> + +#include <sal/config.h> +#include <sal/macros.h> +#include <osl/diagnose.h> +#include "securityenvironment_nssimpl.hxx" +#include <cppuhelper/supportsservice.hxx> +#include <comphelper/servicehelper.hxx> + +#include <xmlsec-wrapper.h> + +#include <rtl/ustrbuf.hxx> +#include <comphelper/processfactory.hxx> +#include <comphelper/docpasswordrequest.hxx> +#include <sal/log.hxx> +#include <com/sun/star/task/InteractionHandler.hpp> +#include <vector> +#include <memory> +#include <osl/thread.h> +#include <comphelper/sequence.hxx> + +#include "x509certificate_nssimpl.hxx" +#include "secerror.hxx" +#include <prerror.h> +#include <keyhi.h> + +// added for password exception +#include <com/sun/star/security/NoPasswordException.hpp> +#include <com/sun/star/security/CertificateCharacters.hpp> +#include <com/sun/star/security/CertificateValidity.hpp> + +namespace csss = ::com::sun::star::security; +using namespace ::com::sun::star::security; +using namespace com::sun::star; +using namespace ::com::sun::star::uno ; +using namespace ::com::sun::star::lang ; + +using ::com::sun::star::xml::crypto::XSecurityEnvironment ; +using ::com::sun::star::security::XCertificate ; + +namespace std +{ +template <> struct default_delete<PRArenaPool> +{ + void operator()(PRArenaPool* ptr) { PORT_FreeArena(ptr, PR_FALSE); } +}; +} + +static rtl::Reference<X509Certificate_NssImpl> NssCertToXCert( CERTCertificate* cert ) ; +static rtl::Reference<X509Certificate_NssImpl> NssPrivKeyToXCert( SECKEYPrivateKey* ) ; + +namespace { + +struct UsageDescription +{ + SECCertificateUsage usage; + char const* description; + + UsageDescription() + : usage( certificateUsageCheckAllUsages ) + , description( nullptr ) + {} + + UsageDescription( SECCertificateUsage i_usage, char const* i_description ) + : usage( i_usage ) + , description( i_description ) + {} +}; + +} + +static char* GetPasswordFunction( PK11SlotInfo* pSlot, PRBool bRetry, void* /*arg*/ ) +{ + uno::Reference< uno::XComponentContext > xContext( ::comphelper::getProcessComponentContext() ); + uno::Reference < task::XInteractionHandler2 > xInteractionHandler( + task::InteractionHandler::createWithParent(xContext, nullptr) ); + + task::PasswordRequestMode eMode = bRetry ? task::PasswordRequestMode_PASSWORD_REENTER : task::PasswordRequestMode_PASSWORD_ENTER; + rtl::Reference<::comphelper::DocPasswordRequest> pPasswordRequest = new ::comphelper::DocPasswordRequest( + ::comphelper::DocPasswordRequestType::Standard, eMode, OUString::createFromAscii(PK11_GetTokenName(pSlot)) ); + + xInteractionHandler->handle( pPasswordRequest ); + + if ( pPasswordRequest->isPassword() ) + { + OString aPassword(OUStringToOString( + pPasswordRequest->getPassword(), + osl_getThreadTextEncoding())); + sal_Int32 nLen = aPassword.getLength(); + char* pPassword = static_cast<char*>(PORT_Alloc( nLen+1 ) ); + pPassword[nLen] = 0; + memcpy( pPassword, aPassword.getStr(), nLen ); + return pPassword; + } + return nullptr; +} + +SecurityEnvironment_NssImpl::SecurityEnvironment_NssImpl() : +m_pHandler( nullptr ) { + PK11_SetPasswordFunc( GetPasswordFunction ) ; +} + +SecurityEnvironment_NssImpl::~SecurityEnvironment_NssImpl() { + + PK11_SetPasswordFunc( nullptr ) ; + + for (auto& slot : m_Slots) + { + PK11_FreeSlot(slot); + } + + for( auto& symKey : m_tSymKeyList ) + PK11_FreeSymKey( symKey ) ; +} + +/* XServiceInfo */ +OUString SAL_CALL SecurityEnvironment_NssImpl::getImplementationName() { + return "com.sun.star.xml.crypto.SecurityEnvironment"; +} + +/* XServiceInfo */ +sal_Bool SAL_CALL SecurityEnvironment_NssImpl::supportsService( const OUString& serviceName) { + return cppu::supportsService(this, serviceName); +} + +/* XServiceInfo */ +Sequence< OUString > SAL_CALL SecurityEnvironment_NssImpl::getSupportedServiceNames() { + Sequence<OUString> seqServiceNames{ "com.sun.star.xml.crypto.SecurityEnvironment" }; + return seqServiceNames; +} + +/* XUnoTunnel */ +sal_Int64 SAL_CALL SecurityEnvironment_NssImpl::getSomething( const Sequence< sal_Int8 >& aIdentifier ) +{ + return comphelper::getSomethingImpl(aIdentifier, this); +} + +/* XUnoTunnel extension */ + +const Sequence< sal_Int8>& SecurityEnvironment_NssImpl::getUnoTunnelId() { + static const comphelper::UnoIdInit theSecurityEnvironment_NssImplUnoTunnelId; + return theSecurityEnvironment_NssImplUnoTunnelId.getSeq(); +} + +OUString SecurityEnvironment_NssImpl::getSecurityEnvironmentInformation() +{ + OUStringBuffer buff; + for (auto& slot : m_Slots) + { + buff.append(OUString::createFromAscii(PK11_GetTokenName(slot))); + buff.append("\n"); + } + return buff.makeStringAndClear(); +} + +void SecurityEnvironment_NssImpl::addCryptoSlot( PK11SlotInfo* aSlot) +{ + PK11_ReferenceSlot(aSlot); + m_Slots.push_back(aSlot); +} + +//Could we have multiple cert dbs? +void SecurityEnvironment_NssImpl::setCertDb( CERTCertDBHandle* aCertDb ) { + m_pHandler = aCertDb ; +} + +void SecurityEnvironment_NssImpl::adoptSymKey( PK11SymKey* aSymKey ) { + if( aSymKey == nullptr ) return; + + //First try to find the key in the list + if (std::find(m_tSymKeyList.begin(), m_tSymKeyList.end(), aSymKey) != m_tSymKeyList.end()) + return; + + //If we do not find the key in the list, add a new node + PK11SymKey* symkey = PK11_ReferenceSymKey( aSymKey ) ; + if( symkey == nullptr ) + throw RuntimeException() ; + + try { + m_tSymKeyList.push_back( symkey ) ; + } catch ( Exception& ) { + PK11_FreeSymKey( symkey ) ; + } +} + +void SecurityEnvironment_NssImpl::updateSlots() +{ + //In case new tokens are present then we can obtain the corresponding slot + std::scoped_lock guard(m_mutex); + + m_Slots.clear(); + m_tSymKeyList.clear(); + + PK11SlotList * slotList = PK11_GetAllTokens( CKM_INVALID_MECHANISM, PR_FALSE, PR_FALSE, nullptr ) ; + if( slotList == nullptr ) + return; + + for (PK11SlotListElement* slotEle = slotList->head ; slotEle != nullptr; slotEle = slotEle->next) + { + PK11SlotInfo * pSlot = slotEle->slot ; + + if(pSlot != nullptr) + { + SAL_INFO( + "xmlsecurity.xmlsec", + "Found a slot: SlotName=" << PK11_GetSlotName(pSlot) + << ", TokenName=" << PK11_GetTokenName(pSlot)); + +//The following code which is commented out checks if a slot, that is a smart card for example, is +// able to generate a symmetric key of type CKM_DES3_CBC. If this fails then this token +// will not be used. This key is possibly used for the encryption service. However, all +// interfaces and services used for public key signature and encryption are not published +// and the encryption is not used in OOo. Therefore it does not do any harm to remove +// this code, hence allowing smart cards which cannot generate this type of key. +// +// By doing this, the encryption may fail if a smart card is being used which does not +// support this key generation. +// + PK11SymKey * pSymKey = PK11_KeyGen( pSlot , CKM_DES3_CBC, nullptr, 128, nullptr ) ; +// if( pSymKey == NULL ) +// { +// PK11_FreeSlot( pSlot ) ; +// SAL_INFO( "xmlsecurity", "XMLSEC: Error - pSymKey is NULL" ); +// continue; +// } + addCryptoSlot(pSlot); + + if (pSymKey != nullptr) + { + adoptSymKey( pSymKey ) ; + PK11_FreeSymKey( pSymKey ) ; + pSymKey = nullptr; + } + + }// end of if(pSlot != NULL) + }// end of for + + PK11_FreeSlotList(slotList); +} + +Sequence< Reference < XCertificate > > +SecurityEnvironment_NssImpl::getPersonalCertificates() +{ + std::vector< rtl::Reference<X509Certificate_NssImpl> > certsList ; + + updateSlots(); + //firstly, we try to find private keys in slot + for (auto& slot : m_Slots) + { + SECKEYPrivateKeyList* priKeyList ; + + if( PK11_NeedLogin(slot ) ) { + SECStatus nRet = PK11_Authenticate(slot, PR_TRUE, nullptr); + //PK11_Authenticate may fail in case the a slot has not been initialized. + //this is the case if the user has a new profile, so that they have never + //added a personal certificate. + if( nRet != SECSuccess && PORT_GetError() != SEC_ERROR_IO) { + throw NoPasswordException(); + } + } + + priKeyList = PK11_ListPrivateKeysInSlot(slot) ; + if( priKeyList != nullptr ) + { + for (SECKEYPrivateKeyListNode* curPri = PRIVKEY_LIST_HEAD(priKeyList); + !PRIVKEY_LIST_END( curPri, priKeyList ) && curPri != nullptr; + curPri = PRIVKEY_LIST_NEXT(curPri)) + { + rtl::Reference<X509Certificate_NssImpl> xcert = NssPrivKeyToXCert( curPri->key ) ; + if( xcert != nullptr ) + certsList.push_back( xcert ) ; + } + SECKEY_DestroyPrivateKeyList( priKeyList ) ; + } + + + } + + if( certsList.size() != 0 ) { + return comphelper::containerToSequence<Reference< XCertificate >>(certsList) ; + } + + return Sequence< Reference < XCertificate > > (); +} + +Reference< XCertificate > SecurityEnvironment_NssImpl::getCertificate( const OUString& issuerName, const Sequence< sal_Int8 >& serialNumber ) +{ + if( !m_pHandler ) + return nullptr; + + rtl::Reference<X509Certificate_NssImpl> xcert; + CERTIssuerAndSN issuerAndSN ; + CERTCertificate* cert ; + CERTName* nmIssuer ; + char* chIssuer ; + SECItem* derIssuer ; + std::unique_ptr<PRArenaPool> arena(PORT_NewArena(DER_DEFAULT_CHUNKSIZE)); + if( arena == nullptr ) + throw RuntimeException() ; + + // Create cert info from issue and serial + OString ostr = OUStringToOString( issuerName , RTL_TEXTENCODING_UTF8 ) ; + chIssuer = PL_strndup( ostr.getStr(), static_cast<int>(ostr.getLength()) ) ; + nmIssuer = CERT_AsciiToName( chIssuer ) ; + if( nmIssuer == nullptr ) { + PL_strfree( chIssuer ) ; + return nullptr; // no need for exception cf. i40394 + } + + derIssuer = SEC_ASN1EncodeItem( arena.get(), nullptr, static_cast<void*>(nmIssuer), SEC_ASN1_GET( CERT_NameTemplate ) ) ; + if( derIssuer == nullptr ) { + PL_strfree( chIssuer ) ; + CERT_DestroyName( nmIssuer ) ; + throw RuntimeException() ; + } + + memset( &issuerAndSN, 0, sizeof( issuerAndSN ) ) ; + + issuerAndSN.derIssuer.data = derIssuer->data ; + issuerAndSN.derIssuer.len = derIssuer->len ; + + issuerAndSN.serialNumber.data = reinterpret_cast<unsigned char *>(const_cast<sal_Int8 *>(serialNumber.getConstArray())); + issuerAndSN.serialNumber.len = serialNumber.getLength() ; + + cert = CERT_FindCertByIssuerAndSN( m_pHandler, &issuerAndSN ) ; + if( cert != nullptr ) { + xcert = NssCertToXCert( cert ) ; + } + + PL_strfree( chIssuer ) ; + CERT_DestroyName( nmIssuer ) ; + //SECITEM_FreeItem( derIssuer, PR_FALSE ) ; + CERT_DestroyCertificate( cert ) ; + + return xcert ; +} + +Sequence< Reference < XCertificate > > SecurityEnvironment_NssImpl::buildCertificatePath( const Reference< XCertificate >& begin ) { + // Remember the signing certificate. + m_xSigningCertificate = begin; + + Reference< XUnoTunnel > xCertTunnel( begin, UNO_QUERY_THROW ) ; + const X509Certificate_NssImpl* xcert = comphelper::getFromUnoTunnel<X509Certificate_NssImpl>(xCertTunnel); + if( xcert == nullptr ) { + throw RuntimeException() ; + } + + const CERTCertificate* cert = xcert->getNssCert() ; + if (!cert) + return {}; + + //Get the system clock time + int64 timeboundary = PR_Now() ; + CERTCertList* certChain = CERT_GetCertChainFromCert( const_cast<CERTCertificate*>(cert), timeboundary, certUsageAnyCA ) ; + + if( !certChain ) + return {}; + + std::vector<uno::Reference<security::XCertificate>> aCertChain; + + for (CERTCertListNode* node = CERT_LIST_HEAD(certChain); !CERT_LIST_END(node, certChain); node = CERT_LIST_NEXT(node)) { + rtl::Reference<X509Certificate_NssImpl> pCert = new X509Certificate_NssImpl(); + if( pCert == nullptr ) { + CERT_DestroyCertList( certChain ) ; + throw RuntimeException() ; + } + + pCert->setCert( node->cert ) ; + + aCertChain.push_back(pCert); + } + + CERT_DestroyCertList( certChain ) ; + + return comphelper::containerToSequence(aCertChain); +} + +rtl::Reference<X509Certificate_NssImpl> SecurityEnvironment_NssImpl::createAndAddCertificateFromPackage( + const css::uno::Sequence<sal_Int8>& raDERCertificate, + std::u16string_view raString) +{ + auto pCertificateBytes = reinterpret_cast<char *>(const_cast<sal_Int8 *>(raDERCertificate.getConstArray())); + CERTCertificate* pCERTCertificate = CERT_DecodeCertFromPackage(pCertificateBytes, raDERCertificate.getLength()); + + if (!pCERTCertificate) + return nullptr; + + SECStatus aStatus; + + OString aTrustString = OUStringToOString(raString, RTL_TEXTENCODING_ASCII_US); + CERTCertTrust aTrust; + + aStatus = CERT_DecodeTrustString(&aTrust, aTrustString.getStr()); + + if (aStatus != SECSuccess) + { + PRIntn err = PR_GetError(); + SAL_WARN("xmlsecurity.xmlsec", "Error: " << err << ": " << getCertError(err)); + return nullptr; + } + + PK11SlotInfo* pSlot = PK11_GetInternalKeySlot(); + + if (!pSlot) + return nullptr; + + aStatus = PK11_ImportCert(pSlot, pCERTCertificate, CK_INVALID_HANDLE, nullptr, PR_FALSE); + + if (aStatus != SECSuccess) + { + PRIntn err = PR_GetError(); + SAL_WARN("xmlsecurity.xmlsec", "Error: " << err << ": " << getCertError(err)); + return nullptr; + } + + aStatus = CERT_ChangeCertTrust(CERT_GetDefaultCertDB(), pCERTCertificate, &aTrust); + + if (aStatus != SECSuccess) + { + PRIntn err = PR_GetError(); + SAL_WARN("xmlsecurity.xmlsec", "Error: " << err << ": " << getCertError(err)); + return nullptr; + } + + PK11_FreeSlot(pSlot); + + rtl::Reference<X509Certificate_NssImpl> pX509Certificate = new X509Certificate_NssImpl(); + pX509Certificate->setCert(pCERTCertificate); + return pX509Certificate; +} + +rtl::Reference<X509Certificate_NssImpl> SecurityEnvironment_NssImpl::createX509CertificateFromDER(const css::uno::Sequence<sal_Int8>& aDerCertificate) +{ + rtl::Reference<X509Certificate_NssImpl> pX509Certificate; + + if (aDerCertificate.hasElements()) + { + pX509Certificate = new X509Certificate_NssImpl(); + if (pX509Certificate == nullptr) + throw RuntimeException(); + pX509Certificate->setRawCert(aDerCertificate); + } + return pX509Certificate; +} + +Reference<XCertificate> SecurityEnvironment_NssImpl::createCertificateFromRaw(const Sequence< sal_Int8 >& rawCertificate) +{ + return createX509CertificateFromDER(rawCertificate); +} + +Reference< XCertificate > SecurityEnvironment_NssImpl::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()) ) ; + int certSize = xmlSecBase64Decode( chCert, reinterpret_cast<xmlSecByte*>(chCert), xmlStrlen( chCert ) ) ; + if (certSize == 0) + return nullptr; + + Sequence< sal_Int8 > rawCert(comphelper::arrayToSequence<sal_Int8>(chCert, certSize)) ; + + xmlFree( chCert ) ; + + return createCertificateFromRaw( rawCert ) ; +} + +sal_Int32 SecurityEnvironment_NssImpl :: +verifyCertificate( const Reference< csss::XCertificate >& aCert, + const Sequence< Reference< csss::XCertificate > >& intermediateCerts ) +{ + sal_Int32 validity = csss::CertificateValidity::INVALID; + const CERTCertificate* cert ; + Reference< XUnoTunnel > xCertTunnel( aCert, UNO_QUERY_THROW ) ; + + SAL_INFO("xmlsecurity.xmlsec", "Start verification of certificate: " << aCert->getSubjectName()); + + const X509Certificate_NssImpl* xcert = comphelper::getFromUnoTunnel<X509Certificate_NssImpl>(xCertTunnel); + if( xcert == nullptr ) { + throw RuntimeException() ; + } + + //CERT_PKIXVerifyCert does not take a db as argument. It will therefore + //internally use CERT_GetDefaultCertDB + //Make sure m_pHandler is the default DB + OSL_ASSERT(m_pHandler == CERT_GetDefaultCertDB()); + CERTCertDBHandle * certDb = m_pHandler != nullptr ? m_pHandler : CERT_GetDefaultCertDB(); + cert = xcert->getNssCert() ; + if( !cert ) + return css::security::CertificateValidity::INVALID; + + + ::std::vector<CERTCertificate*> vecTmpNSSCertificates; + + //prepare the intermediate certificates + for (const auto& rIntermediateCert : intermediateCerts) + { + Sequence<sal_Int8> der = rIntermediateCert->getEncoded(); + SECItem item; + item.type = siBuffer; + item.data = reinterpret_cast<unsigned char*>(der.getArray()); + item.len = der.getLength(); + + CERTCertificate* certTmp = CERT_NewTempCertificate(certDb, &item, + nullptr /* nickname */, + PR_FALSE /* isPerm */, + PR_TRUE /* copyDER */); + if (!certTmp) + { + SAL_INFO("xmlsecurity.xmlsec", "Failed to add a temporary certificate: " << rIntermediateCert->getIssuerName()); + + } + else + { + SAL_INFO("xmlsecurity.xmlsec", "Added temporary certificate: " << + (certTmp->subjectName ? certTmp->subjectName : "")); + vecTmpNSSCertificates.push_back(certTmp); + } + } + + + SECStatus status ; + + CERTVerifyLog log; + log.arena = PORT_NewArena(512); + log.head = log.tail = nullptr; + log.count = 0; + + CERT_EnableOCSPChecking(certDb); + CERT_DisableOCSPDefaultResponder(certDb); + CERTValOutParam cvout[5]; + CERTValInParam cvin[3]; + int ncvinCount=0; + +#if ( NSS_VMAJOR > 3 ) || ( NSS_VMAJOR == 3 && NSS_VMINOR > 12 ) || ( NSS_VMAJOR == 3 && NSS_VMINOR == 12 && NSS_VPATCH > 0 ) + cvin[ncvinCount].type = cert_pi_useAIACertFetch; + cvin[ncvinCount].value.scalar.b = PR_TRUE; + ncvinCount++; +#endif + + PRUint64 revFlagsLeaf[2]; + PRUint64 revFlagsChain[2]; + CERTRevocationFlags rev; + rev.leafTests.number_of_defined_methods = 2; + rev.leafTests.cert_rev_flags_per_method = revFlagsLeaf; + //the flags are defined in cert.h + //We check both leaf and chain. + //It is enough if one revocation method has fresh info, + //but at least one must have some. Otherwise validation fails. + //!!! using leaf test and CERT_REV_MI_REQUIRE_SOME_FRESH_INFO_AVAILABLE + // when validating a root certificate will result in "revoked". Usually + //there is no revocation information available for the root cert because + //it must be trusted anyway and it does itself issue revocation information. + //When we use the flag here and OOo shows the certification path then the root + //cert is invalid while all other can be valid. It would probably best if + //this interface method returned the whole chain. + //Otherwise we need to check if the certificate is self-signed and if it is + //then not use the flag when doing the leaf-test. + rev.leafTests.cert_rev_flags_per_method[cert_revocation_method_crl] = + CERT_REV_M_TEST_USING_THIS_METHOD + | CERT_REV_M_IGNORE_IMPLICIT_DEFAULT_SOURCE; + rev.leafTests.cert_rev_flags_per_method[cert_revocation_method_ocsp] = + CERT_REV_M_TEST_USING_THIS_METHOD + | CERT_REV_M_IGNORE_IMPLICIT_DEFAULT_SOURCE; + rev.leafTests.number_of_preferred_methods = 0; + rev.leafTests.preferred_methods = nullptr; + rev.leafTests.cert_rev_method_independent_flags = + CERT_REV_MI_TEST_ALL_LOCAL_INFORMATION_FIRST; + + rev.chainTests.number_of_defined_methods = 2; + rev.chainTests.cert_rev_flags_per_method = revFlagsChain; + rev.chainTests.cert_rev_flags_per_method[cert_revocation_method_crl] = + CERT_REV_M_TEST_USING_THIS_METHOD + | CERT_REV_M_IGNORE_IMPLICIT_DEFAULT_SOURCE; + rev.chainTests.cert_rev_flags_per_method[cert_revocation_method_ocsp] = + CERT_REV_M_TEST_USING_THIS_METHOD + | CERT_REV_M_IGNORE_IMPLICIT_DEFAULT_SOURCE; + rev.chainTests.number_of_preferred_methods = 0; + rev.chainTests.preferred_methods = nullptr; + rev.chainTests.cert_rev_method_independent_flags = + CERT_REV_MI_TEST_ALL_LOCAL_INFORMATION_FIRST; + + + cvin[ncvinCount].type = cert_pi_revocationFlags; + cvin[ncvinCount].value.pointer.revocation = &rev; + ncvinCount++; + // does not work, not implemented yet in 3.12.4 +// cvin[ncvinCount].type = cert_pi_keyusage; +// cvin[ncvinCount].value.scalar.ui = KU_DIGITAL_SIGNATURE; +// ncvinCount++; + cvin[ncvinCount].type = cert_pi_end; + + cvout[0].type = cert_po_trustAnchor; + cvout[0].value.pointer.cert = nullptr; + cvout[1].type = cert_po_errorLog; + cvout[1].value.pointer.log = &log; + cvout[2].type = cert_po_end; + + // We check SSL server certificates, CA certificates and signing certificates. + // + // ToDo check keyusage, looking at CERT_KeyUsageAndTypeForCertUsage ( + // mozilla/security/nss/lib/certdb/certdb.c indicates that + // certificateUsageSSLClient, certificateUsageSSLServer and certificateUsageSSLCA + // are sufficient. They cover the key usages for digital signature, key agreement + // and encipherment and certificate signature + + //never use the following usages because they are not checked properly + // certificateUsageUserCertImport + // certificateUsageVerifyCA + // certificateUsageAnyCA + // certificateUsageProtectedObjectSigner + + UsageDescription arUsages[5]; + arUsages[0] = UsageDescription( certificateUsageSSLClient, "certificateUsageSSLClient" ); + arUsages[1] = UsageDescription( certificateUsageSSLServer, "certificateUsageSSLServer" ); + arUsages[2] = UsageDescription( certificateUsageSSLCA, "certificateUsageSSLCA" ); + arUsages[3] = UsageDescription( certificateUsageEmailSigner, "certificateUsageEmailSigner" ); + arUsages[4] = UsageDescription( certificateUsageEmailRecipient, "certificateUsageEmailRecipient" ); + + int numUsages = SAL_N_ELEMENTS(arUsages); + for (int i = 0; i < numUsages; i++) + { + SAL_INFO("xmlsecurity.xmlsec", "Testing usage " << i+1 << + " of " << numUsages << ": " << + arUsages[i].description << + " (0x" << std::hex << static_cast<int>(arUsages[i].usage) << ")" << std::dec); + + status = CERT_PKIXVerifyCert(const_cast<CERTCertificate *>(cert), arUsages[i].usage, + cvin, cvout, nullptr); + if( status == SECSuccess ) + { + SAL_INFO("xmlsecurity.xmlsec", "CERT_PKIXVerifyCert returned SECSuccess."); + //When an intermediate or root certificate is checked then we expect the usage + //certificateUsageSSLCA. This, however, will be only set when in the trust settings dialog + //the button "This certificate can identify websites" is checked. If for example only + //"This certificate can identify mail users" is set then the end certificate can + //be validated and the returned usage will contain certificateUsageEmailRecipient. + //But checking directly the root or intermediate certificate will fail. In the + //certificate path view the end certificate will be shown as valid but the others + //will be displayed as invalid. + + validity = csss::CertificateValidity::VALID; + SAL_INFO("xmlsecurity.xmlsec", "Certificate is valid."); + CERTCertificate * issuerCert = cvout[0].value.pointer.cert; + if (issuerCert) + { + SAL_INFO("xmlsecurity.xmlsec", "Root certificate: " << issuerCert->subjectName); + CERT_DestroyCertificate(issuerCert); + }; + + break; + } + else + { + PRIntn err = PR_GetError(); + SAL_INFO("xmlsecurity.xmlsec", "Error: " << err << ": " << getCertError(err)); + + /* Display validation results */ + if ( log.count > 0) + { + CERTVerifyLogNode *node = nullptr; + printChainFailure(&log); + + for (node = log.head; node; node = node->next) { + if (node->cert) + CERT_DestroyCertificate(node->cert); + } + log.head = log.tail = nullptr; + log.count = 0; + } + SAL_INFO("xmlsecurity.xmlsec", "Certificate is invalid."); + } + } + + //Destroying the temporary certificates + for (auto& tmpCert : vecTmpNSSCertificates) + { + SAL_INFO("xmlsecurity.xmlsec", "Destroying temporary certificate"); + CERT_DestroyCertificate(tmpCert); + } + PORT_FreeArena(log.arena, true); + return validity ; +} + +sal_Int32 SecurityEnvironment_NssImpl::getCertificateCharacters( + const css::uno::Reference< css::security::XCertificate >& aCert ) { + sal_Int32 characters ; + const CERTCertificate* cert ; + + Reference< XUnoTunnel > xCertTunnel( aCert, UNO_QUERY_THROW ) ; + const X509Certificate_NssImpl* xcert = comphelper::getFromUnoTunnel<X509Certificate_NssImpl>(xCertTunnel); + if( xcert == nullptr ) { + throw RuntimeException() ; + } + + cert = xcert->getNssCert() ; + + characters = 0x00000000 ; + + //Firstly, find out whether or not the cert is self-signed. + if( SECITEM_CompareItem( &(cert->derIssuer), &(cert->derSubject) ) == SECEqual ) { + characters |= css::security::CertificateCharacters::SELF_SIGNED ; + } else { + characters &= ~ css::security::CertificateCharacters::SELF_SIGNED ; + } + + //Secondly, find out whether or not the cert has a private key. + + /* + * i40394 + * + * mmi : need to check whether the cert's slot is valid first + */ + SECKEYPrivateKey* priKey = nullptr; + + if (cert->slot != nullptr) + { + priKey = PK11_FindPrivateKeyFromCert( cert->slot, const_cast<CERTCertificate*>(cert), nullptr ) ; + } + if(priKey == nullptr) + { + for (auto& slot : m_Slots) + { + priKey = PK11_FindPrivateKeyFromCert(slot, const_cast<CERTCertificate*>(cert), nullptr); + if (priKey) + break; + } + } + if( priKey != nullptr ) { + characters |= css::security::CertificateCharacters::HAS_PRIVATE_KEY ; + + SECKEY_DestroyPrivateKey( priKey ) ; + } else { + characters &= ~ css::security::CertificateCharacters::HAS_PRIVATE_KEY ; + } + + return characters ; +} + +rtl::Reference<X509Certificate_NssImpl> NssCertToXCert( CERTCertificate* cert ) +{ + if( cert != nullptr ) { + rtl::Reference<X509Certificate_NssImpl> xcert = new X509Certificate_NssImpl() ; + xcert->setCert( cert ) ; + return xcert; + } + + return nullptr; +} + +rtl::Reference<X509Certificate_NssImpl> NssPrivKeyToXCert( SECKEYPrivateKey* priKey ) +{ + if( priKey != nullptr ) { + rtl::Reference<X509Certificate_NssImpl> xcert; + CERTCertificate* cert = PK11_GetCertFromPrivateKey( priKey ) ; + + if( cert != nullptr ) { + xcert = NssCertToXCert( cert ) ; + } + + CERT_DestroyCertificate( cert ) ; + return xcert; + } + + return nullptr; +} + +xmlSecKeysMngrPtr SecurityEnvironment_NssImpl::createKeysManager() { + + /*- + * The following lines is based on the private version of xmlSec-NSS + * crypto engine + */ + int cSlots = m_Slots.size(); + std::unique_ptr<PK11SlotInfo*[]> sarSlots(new PK11SlotInfo*[cSlots]); + PK11SlotInfo** slots = sarSlots.get(); + int count = 0; + for (const auto& slot : m_Slots) + { + slots[count] = slot; + ++count; + } + + xmlSecKeysMngrPtr pKeysMngr = xmlSecKeysMngrCreate(); + if (!pKeysMngr) + throw RuntimeException(); + + if (xmlSecNssAppDefaultKeysMngrInit(pKeysMngr) < 0) + throw RuntimeException(); + + // Adopt the private key of the signing certificate, if it has any. + if (auto pCertificate = dynamic_cast<X509Certificate_NssImpl*>(m_xSigningCertificate.get())) + { + SECKEYPrivateKey* pPrivateKey = SECKEY_CopyPrivateKey(pCertificate->getPrivateKey()); + if (pPrivateKey) + { + xmlSecKeyDataPtr pKeyData = xmlSecNssPKIAdoptKey(pPrivateKey, nullptr); + xmlSecKeyPtr pKey = xmlSecKeyCreate(); + xmlSecKeySetValue(pKey, pKeyData); + xmlSecNssAppDefaultKeysMngrAdoptKey(pKeysMngr, pKey); + } + else + { + SAL_WARN("xmlsecurity.xmlsec", "Can't get the private key from the certificate."); + } + } + + return pKeysMngr; +} + +void SecurityEnvironment_NssImpl::destroyKeysManager(xmlSecKeysMngrPtr pKeysMngr) { + if( pKeysMngr != nullptr ) { + xmlSecKeysMngrDestroy( pKeysMngr ) ; + } +} + +SECKEYPrivateKey* SecurityEnvironment_NssImpl::insertPrivateKey(css::uno::Sequence<sal_Int8> const & raPrivateKey) +{ + PK11SlotInfo* pSlot = PK11_GetInternalKeySlot(); + + if (!pSlot) + return nullptr; + + SECItem aDerPrivateKeyInfo; + aDerPrivateKeyInfo.data = reinterpret_cast<unsigned char *>(const_cast<sal_Int8 *>(raPrivateKey.getConstArray())); + aDerPrivateKeyInfo.len = raPrivateKey.getLength(); + + const unsigned int aKeyUsage = KU_ALL; + SECKEYPrivateKey* pPrivateKey = nullptr; + + bool bPermanent = PR_FALSE; + bool bPrivate = PR_TRUE; + + SECStatus nStatus = PK11_ImportDERPrivateKeyInfoAndReturnKey( + pSlot, &aDerPrivateKeyInfo, nullptr, nullptr, bPermanent, bPrivate, + aKeyUsage, &pPrivateKey, nullptr); + + if (nStatus != SECSuccess) + return nullptr; + + PK11_FreeSlot(pSlot); + + return pPrivateKey; +} + +uno::Reference<security::XCertificate> SecurityEnvironment_NssImpl::createDERCertificateWithPrivateKey( + Sequence<sal_Int8> const & raDERCertificate, Sequence<sal_Int8> const & raPrivateKey) +{ + SECKEYPrivateKey* pPrivateKey = insertPrivateKey(raPrivateKey); + + if (!pPrivateKey) + return uno::Reference<security::XCertificate>(); + + return createAndAddCertificateFromPackage(raDERCertificate, u"TCu,TCu,TCu"); +} + +uno::Reference<security::XCertificate> SecurityEnvironment_NssImpl::addDERCertificateToTheDatabase( + uno::Sequence<sal_Int8> const & raDERCertificate, OUString const & raTrustString) +{ + return createAndAddCertificateFromPackage(raDERCertificate, raTrustString); +} + +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_NssImpl); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |