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Diffstat (limited to 'xmlsecurity/source/gpg/SecurityEnvironment.cxx')
| -rw-r--r-- | xmlsecurity/source/gpg/SecurityEnvironment.cxx | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/xmlsecurity/source/gpg/SecurityEnvironment.cxx b/xmlsecurity/source/gpg/SecurityEnvironment.cxx new file mode 100644 index 000000000..290529bc8 --- /dev/null +++ b/xmlsecurity/source/gpg/SecurityEnvironment.cxx @@ -0,0 +1,239 @@ +/* -*- 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/. + */ + +#include "SecurityEnvironment.hxx" +#include "CertificateImpl.hxx" + +#include <com/sun/star/security/CertificateCharacters.hpp> +#include <com/sun/star/security/CertificateValidity.hpp> + +#include <comphelper/servicehelper.hxx> +#include <vector> + +#ifdef _WIN32 +#include <config_folders.h> +#include <osl/file.hxx> +#include <osl/process.h> +#include <rtl/bootstrap.hxx> +#include <tools/urlobj.hxx> +#endif + +#include <key.h> +#include <keylistresult.h> +#include <xmlsec-wrapper.h> + +#if defined _MSC_VER && defined __clang__ +#pragma clang diagnostic push +#pragma clang diagnostic ignored "-Wundef" +#endif +#include <gpgme.h> +#if defined _MSC_VER && defined __clang__ +#pragma clang diagnostic pop +#endif +#include <context.h> + +using namespace css; +using namespace css::security; +using namespace css::uno; +using namespace css::lang; + +SecurityEnvironmentGpg::SecurityEnvironmentGpg() +{ +#ifdef _WIN32 + // On Windows, gpgme expects gpgme-w32spawn.exe to be in the same directory as the current + // process executable. This assumption might be wrong, e.g., for bundled python, which is + // in instdir/program/python-core-x.y.z/bin, while gpgme-w32spawn.exe is in instdir/program. + // If we can't find gpgme-w32spawn.exe in the current executable location, then try to find + // the spawn executable, and inform gpgme about actual location using gpgme_set_global_flag. + [[maybe_unused]] static bool bSpawnPathInitialized = [] { + auto accessUrl = [](const INetURLObject& url) { + osl::File file(url.GetMainURL(INetURLObject::DecodeMechanism::NONE)); + return file.open(osl_File_OpenFlag_Read) == osl::FileBase::E_None; + }; + OUString sPath; + osl_getExecutableFile(&sPath.pData); + INetURLObject aPathUrl(sPath); + aPathUrl.setName("gpgme-w32spawn.exe"); + if (!accessUrl(aPathUrl)) + { + sPath = "$BRAND_BASE_DIR/" LIBO_LIBEXEC_FOLDER "/gpgme-w32spawn.exe"; + rtl::Bootstrap::expandMacros(sPath); + aPathUrl.SetURL(sPath); + if (accessUrl(aPathUrl)) + { + aPathUrl.removeSegment(); + GpgME::setGlobalFlag("w32-inst-dir", + aPathUrl.getFSysPath(FSysStyle::Dos).toUtf8().getStr()); + } + } + return true; + }(); +#endif + GpgME::Error err = GpgME::checkEngine(GpgME::OpenPGP); + if (err) + throw RuntimeException("The GpgME library failed to initialize for the OpenPGP protocol."); + + m_ctx.reset( GpgME::Context::createForProtocol(GpgME::OpenPGP) ); + if (m_ctx == nullptr) + throw RuntimeException("The GpgME library failed to initialize for the OpenPGP protocol."); + m_ctx->setArmor(false); +} + +SecurityEnvironmentGpg::~SecurityEnvironmentGpg() +{ +} + +/* XUnoTunnel */ +sal_Int64 SAL_CALL SecurityEnvironmentGpg::getSomething( const Sequence< sal_Int8 >& aIdentifier ) +{ + if( isUnoTunnelId<SecurityEnvironmentGpg>(aIdentifier) ) { + return sal::static_int_cast<sal_Int64>(reinterpret_cast<sal_uIntPtr>(this)); + } + return 0 ; +} + +/* XUnoTunnel extension */ + +namespace +{ + class theSecurityEnvironmentUnoTunnelId : public rtl::Static< UnoTunnelIdInit, theSecurityEnvironmentUnoTunnelId > {}; +} + +const Sequence< sal_Int8>& SecurityEnvironmentGpg::getUnoTunnelId() { + return theSecurityEnvironmentUnoTunnelId::get().getSeq(); +} + +OUString SecurityEnvironmentGpg::getSecurityEnvironmentInformation() +{ + return OUString(); +} + +Sequence< Reference < XCertificate > > SecurityEnvironmentGpg::getCertificatesImpl( bool bPrivateOnly ) +{ + CertificateImpl* xCert; + std::vector< GpgME::Key > keyList; + std::vector< CertificateImpl* > certsList; + + m_ctx->setKeyListMode(GPGME_KEYLIST_MODE_LOCAL); + GpgME::Error err = m_ctx->startKeyListing("", bPrivateOnly ); + while (!err) { + GpgME::Key k = m_ctx->nextKey(err); + if (err) + break; + if (!k.isRevoked() && !k.isExpired() && !k.isDisabled() && !k.isInvalid()) { + // We can't create CertificateImpl here as CertificateImpl::setCertificate uses GpgME API + // which interrupts our key listing here. So first get the keys from GpgME, then create the CertificateImpls + keyList.push_back(k); + } + } + m_ctx->endKeyListing(); + + for (auto const& key : keyList) { + xCert = new CertificateImpl(); + xCert->setCertificate(m_ctx.get(),key); + certsList.push_back(xCert); + } + + Sequence< Reference< XCertificate > > xCertificateSequence(certsList.size()); + int i = 0; + for (auto const& cert : certsList) { + xCertificateSequence[i++] = cert; + } + + return xCertificateSequence; +} + +Sequence< Reference < XCertificate > > SecurityEnvironmentGpg::getPersonalCertificates() +{ + return getCertificatesImpl( true ); +} + +Sequence< Reference < XCertificate > > SecurityEnvironmentGpg::getAllCertificates() +{ + return getCertificatesImpl( false ); +} + +Reference< XCertificate > SecurityEnvironmentGpg::getCertificate( const OUString& keyId, const Sequence< sal_Int8 >& /*serialNumber*/ ) +{ + CertificateImpl* xCert=nullptr; + + //xmlChar* pSignatureValue=xmlNodeGetContent(cur); + OString ostr = OUStringToOString( keyId , RTL_TEXTENCODING_UTF8 ); + const xmlChar* strKeyId = reinterpret_cast<const xmlChar*>(ostr.getStr()); + if(xmlSecBase64Decode(strKeyId, const_cast<xmlSecByte*>(strKeyId), xmlStrlen(strKeyId)) < 0) + throw RuntimeException("Base64 decode failed"); + + m_ctx->setKeyListMode(GPGME_KEYLIST_MODE_LOCAL); + GpgME::Error err = m_ctx->startKeyListing("", false); + while (!err) { + GpgME::Key k = m_ctx->nextKey(err); + if (err) + break; + if (!k.isInvalid() && strcmp(k.primaryFingerprint(), reinterpret_cast<const char*>(strKeyId)) == 0) { + xCert = new CertificateImpl(); + xCert->setCertificate(m_ctx.get(), k); + m_ctx->endKeyListing(); + return xCert; + } + } + m_ctx->endKeyListing(); + + return nullptr; +} + +Sequence< Reference < XCertificate > > SecurityEnvironmentGpg::buildCertificatePath( const Reference< XCertificate >& /*begin*/ ) +{ + return Sequence< Reference < XCertificate > >(); +} + +Reference< XCertificate > SecurityEnvironmentGpg::createCertificateFromRaw( const Sequence< sal_Int8 >& /*rawCertificate*/ ) +{ + return nullptr; +} + +Reference< XCertificate > SecurityEnvironmentGpg::createCertificateFromAscii( const OUString& /*asciiCertificate*/ ) +{ + return nullptr; +} + +sal_Int32 SecurityEnvironmentGpg::verifyCertificate( const Reference< XCertificate >& aCert, + const Sequence< Reference< XCertificate > >& /*intermediateCerts*/ ) +{ + const CertificateImpl* xCert = dynamic_cast<CertificateImpl*>(aCert.get()); + if (xCert == nullptr) { + // Can't find the key locally -> unknown owner + return security::CertificateValidity::ISSUER_UNKNOWN; + } + + const GpgME::Key* key = xCert->getCertificate(); + if (key->ownerTrust() == GpgME::Key::OwnerTrust::Marginal || + key->ownerTrust() == GpgME::Key::OwnerTrust::Full || + key->ownerTrust() == GpgME::Key::OwnerTrust::Ultimate) + { + return security::CertificateValidity::VALID; + } + + return security::CertificateValidity::ISSUER_UNTRUSTED; +} + +sal_Int32 SecurityEnvironmentGpg::getCertificateCharacters( + const Reference< XCertificate >& aCert) +{ + const CertificateImpl* xCert; + Reference< XUnoTunnel > xCertTunnel(aCert, UNO_QUERY_THROW) ; + xCert = reinterpret_cast<CertificateImpl*>(sal::static_int_cast<sal_uIntPtr>(xCertTunnel->getSomething(CertificateImpl::getUnoTunnelId()))) ; + if (xCert == nullptr) + throw RuntimeException(); + + // we only listed private keys anyway, up in + // SecurityEnvironmentGpg::getPersonalCertificates + return CertificateCharacters::HAS_PRIVATE_KEY; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |