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Diffstat (limited to '')
| -rw-r--r-- | xmlsecurity/inc/xmlsignaturehelper.hxx | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/xmlsecurity/inc/xmlsignaturehelper.hxx b/xmlsecurity/inc/xmlsignaturehelper.hxx new file mode 100644 index 000000000..de7de9908 --- /dev/null +++ b/xmlsecurity/inc/xmlsignaturehelper.hxx @@ -0,0 +1,176 @@ +/* -*- 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 . + */ + +#pragma once + +#include <tools/link.hxx> +#include <rtl/ustring.hxx> +#include <rtl/ref.hxx> +#include <svl/sigstruct.hxx> +#include "xmlsecuritydllapi.h" +#include "xmlsignaturehelper.hxx" +#include "xsecctl.hxx" + +#include <com/sun/star/security/XCertificate.hpp> +#include <com/sun/star/xml/crypto/XSecurityEnvironment.hpp> + +class DateTime; +class UriBindingHelper; + +namespace com::sun::star { + namespace io { + class XOutputStream; + class XInputStream; + } + namespace embed { class XStorage; } +} + +namespace com::sun::star::graphic { class XGraphic; } +namespace com::sun::star::uno { class XComponentContext; } +namespace com::sun::star::xml::crypto { class XXMLSecurityContext; } +namespace com::sun::star::xml::sax { class XDocumentHandler; } +namespace com::sun::star::xml::sax { class XWriter; } + +/********************************************************** + XMLSignatureHelper + + Helper class for the XML Security framework + + Functions: + 1. help to create a security context; + 2. help to listen signature creation result; + 3. help to listen signature verify result; + 4. help to indicate which signature to verify. + + **********************************************************/ + +class XMLSECURITY_DLLPUBLIC XMLSignatureHelper +{ +private: + css::uno::Reference< css::uno::XComponentContext > mxCtx; + rtl::Reference<UriBindingHelper> mxUriBinding; + + rtl::Reference<XSecController> mpXSecController; + bool mbError; + bool mbODFPre1_2; + Link<LinkParamNone*,bool> maStartVerifySignatureHdl; + +private: + XMLSignatureHelper(const XMLSignatureHelper&) = delete; + +public: + XMLSignatureHelper(const css::uno::Reference< css::uno::XComponentContext >& mrCtx ); + ~XMLSignatureHelper(); + + void StartVerifySignatureElement(); + + // Set the storage which should be used by the default UriBinding + // Must be set before StartMission(). + //sODFVersion indicates the ODF version + void SetStorage( const css::uno::Reference < css::embed::XStorage >& rxStorage, const OUString& sODFVersion ); + + // Argument for the Link is a uno::Reference< xml::sax::XAttributeList >* + // Return 1 to verify, 0 to skip. + // Default handler will verify all. + void SetStartVerifySignatureHdl( const Link<LinkParamNone*,bool>& rLink ); + + // After signing/verifying, get information about signatures + SignatureInformation GetSignatureInformation( sal_Int32 nSecurityId ) const; + SignatureInformations GetSignatureInformations() const; + /// ImplVerifySignature calls this to figure out which X509Data is the + /// signing certificate and update the internal state with the result. + /// @return + /// A sequence with the signing certificate at the back on success. + /// An empty sequence on failure. + std::vector<css::uno::Reference<css::security::XCertificate>> + CheckAndUpdateSignatureInformation( + css::uno::Reference<css::xml::crypto::XSecurityEnvironment> const& xSecEnv, + SignatureInformation const& rInfo); + + // See XSecController for documentation + void StartMission(const css::uno::Reference<css::xml::crypto::XXMLSecurityContext>& xSecurityContext); + void EndMission(); + sal_Int32 GetNewSecurityId(); + /** sets data that describes the certificate. + + It is absolutely necessary that the parameter ouX509IssuerName is set. It contains + the base64 encoded certificate, which is DER encoded. The XMLSec needs it to find + the private key. Although issuer name and certificate should be sufficient to identify + the certificate the implementation in XMLSec is broken, both for Windows and mozilla. + The reason is that they use functions to find the certificate which take as parameter + the DER encoded ASN.1 issuer name. The issuer name is a DName, where most attributes + are of type DirectoryName, which is a choice of 5 string types. This information is + not contained in the issuer string and while it is converted to the ASN.1 name the + conversion function must assume a particular type, which is often wrong. For example, + the Windows function CertStrToName will use a T.61 string if the string does not contain + special characters. So if the certificate uses simple characters but encodes the + issuer attributes in Utf8, then CertStrToName will use T.61. The resulting DER encoded + ASN.1 name now contains different bytes which indicate the string type. The functions + for finding the certificate apparently use memcmp - hence they fail to find the + certificate. + */ + void SetX509Certificate(sal_Int32 nSecurityId, const OUString& ouX509IssuerName, + const OUString& ouX509SerialNumber, const OUString& ouX509Cert, const OUString& ouX509CertDigest, + svl::crypto::SignatureMethodAlgorithm eAlgorithmID); + + void AddEncapsulatedX509Certificate(const OUString& ouEncapsulatedX509Certificate); + + void SetGpgCertificate(sal_Int32 nSecurityId, const OUString& ouGpgCertDigest, + const OUString& ouGpgCert, const OUString& ouGpgOwner); + + void SetDateTime( sal_Int32 nSecurityId, const DateTime& rDateTime ); + void SetDescription(sal_Int32 nSecurityId, const OUString& rDescription); + void SetSignatureLineId(sal_Int32 nSecurityId, const OUString& rSignatureLineId); + void + SetSignatureLineValidGraphic(sal_Int32 nSecurityId, + const css::uno::Reference<css::graphic::XGraphic>& xValidGraphic); + void SetSignatureLineInvalidGraphic( + sal_Int32 nSecurityId, const css::uno::Reference<css::graphic::XGraphic>& xInvalidGraphic); + + void AddForSigning( sal_Int32 securityId, const OUString& uri, bool bBinary, bool bXAdESCompliantIfODF ); + void CreateAndWriteSignature( const css::uno::Reference< css::xml::sax::XDocumentHandler >& xDocumentHandler, bool bXAdESCompliantIfODF ); + bool ReadAndVerifySignature( const css::uno::Reference< css::io::XInputStream >& xInputStream ); + + // MT: ??? I think only for adding/removing, not for new signatures... + // MM: Yes, but if you want to insert a new signature into an existing signature file, those function + // will be very useful, see Mission 3 in the new "multisigdemo" program :-) + css::uno::Reference< css::xml::sax::XWriter> CreateDocumentHandlerWithHeader( const css::uno::Reference< css::io::XOutputStream >& xOutputStream ); + static void CloseDocumentHandler( const css::uno::Reference< css::xml::sax::XDocumentHandler>& xDocumentHandler ); + static void ExportSignature( + const css::uno::Reference< css::xml::sax::XDocumentHandler >& xDocumentHandler, + const SignatureInformation& signatureInfo, + bool bXAdESCompliantIfODF ); + + /// Read and verify OOXML signatures. + bool ReadAndVerifySignatureStorage(const css::uno::Reference<css::embed::XStorage>& xStorage, bool bCacheLastSignature = true); + /// Read and verify a single OOXML signature. + bool ReadAndVerifySignatureStorageStream(const css::uno::Reference<css::io::XInputStream>& xInputStream); + /// Adds or removes an OOXML digital signature relation to _rels/.rels if there wasn't any before. + void EnsureSignaturesRelation(const css::uno::Reference<css::embed::XStorage>& xStorage, bool bAdd); + /// Given that xStorage is an OOXML _xmlsignatures storage, create origin.sigs and its relations. + void ExportSignatureRelations(const css::uno::Reference<css::embed::XStorage>& xStorage, int nSignatureCount); + /// Given that xSignatureStorage is an OOXML _xmlsignatures storage, create and write a new signature. + void CreateAndWriteOOXMLSignature(const css::uno::Reference<css::embed::XStorage>& xRootStorage, const css::uno::Reference<css::embed::XStorage>& xSignatureStorage, int nSignatureIndex); + /// Similar to CreateAndWriteOOXMLSignature(), but used to write the signature to the persistent storage, not the temporary one. + void ExportOOXMLSignature(const css::uno::Reference<css::embed::XStorage>& xRootStorage, const css::uno::Reference<css::embed::XStorage>& xSignatureStorage, const SignatureInformation& rInformation, int nSignatureIndex); + /// Given that xStorage is an OOXML root storage, advertise signatures in its [Content_Types].xml stream. + void ExportSignatureContentTypes(const css::uno::Reference<css::embed::XStorage>& xStorage, int nSignatureCount); +}; + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |