xmlsecurity: allow creating multiple signatures with the same certificate

Now that the user can provide a description of the signature, it makes
sense to allow multiple signatures from the same user, assuming that the
descriptions explain the purpose of the different signatures.

Change-Id: I2cd4680594732d6b40dc3ffbcb6b4a9a6ca87919

xmlsecurity/inc/xmlsecurity/certificatechooser.hxx

@@ -46,7 +46,6 @@ private:
     css::uno::Reference< css::uno::XComponentContext > mxCtx;
     css::uno::Reference< css::xml::crypto::XSecurityEnvironment > mxSecurityEnvironment;
     css::uno::Sequence< css::uno::Reference< css::security::XCertificate > > maCerts;
-    SignatureInformations   maCertsToIgnore;
 
     VclPtr<SvSimpleTable>   m_pCertLB;
     VclPtr<PushButton>      m_pViewBtn;
@@ -65,7 +64,7 @@ private:
     void ImplInitialize();
 
 public:
-    CertificateChooser( vcl::Window* pParent, css::uno::Reference< css::uno::XComponentContext>& rxCtx, css::uno::Reference< css::xml::crypto::XSecurityEnvironment >& rxSecurityEnvironment, const SignatureInformations& rCertsToIgnore );
+    CertificateChooser(vcl::Window* pParent, css::uno::Reference< css::uno::XComponentContext>& rxCtx, css::uno::Reference< css::xml::crypto::XSecurityEnvironment >& rxSecurityEnvironment);
     virtual ~CertificateChooser();
     virtual void dispose() override;
 

xmlsecurity/source/component/documentdigitalsignatures.cxx

@@ -439,7 +439,7 @@ Reference< css::security::XCertificate > DocumentDigitalSignatures::chooseCertif
     if ( aSignatureHelper.Init() )
         xSecEnv = aSignatureHelper.GetSecurityEnvironment();
 
-    ScopedVclPtrInstance< CertificateChooser > aChooser( nullptr, mxCtx, xSecEnv, aSignatureHelper.GetSignatureInformations());
+    ScopedVclPtrInstance< CertificateChooser > aChooser(nullptr, mxCtx, xSecEnv);
 
     if (aChooser->Execute() != RET_OK)
         return Reference< css::security::XCertificate >(nullptr);

xmlsecurity/source/dialogs/certificatechooser.cxx

@@ -48,9 +48,8 @@ sal_uInt16 CertificateChooser::GetSelectedEntryPos() const
     return (sal_uInt16) nSel;
 }
 
-CertificateChooser::CertificateChooser( vcl::Window* _pParent, uno::Reference< uno::XComponentContext>& _rxCtx, uno::Reference< css::xml::crypto::XSecurityEnvironment >& _rxSecurityEnvironment, const SignatureInformations& _rCertsToIgnore )
+CertificateChooser::CertificateChooser(vcl::Window* _pParent, uno::Reference<uno::XComponentContext>& _rxCtx, uno::Reference<xml::crypto::XSecurityEnvironment>& _rxSecurityEnvironment)
     : ModalDialog(_pParent, "SelectCertificateDialog", "xmlsec/ui/selectcertificatedialog.ui")
-    , maCertsToIgnore( _rCertsToIgnore )
 {
     get(m_pOKBtn, "ok");
     get(m_pViewBtn, "viewcert");
@@ -136,39 +135,13 @@ void CertificateChooser::ImplInitialize()
             ::com::sun::star::security::SerialNumberAdapter::create(mxCtx);
 
         sal_Int32 nCertificates = maCerts.getLength();
-        sal_Int32 nCertificatesToIgnore = maCertsToIgnore.size();
         for( sal_Int32 nCert = nCertificates; nCert; )
         {
             uno::Reference< security::XCertificate > xCert = maCerts[ --nCert ];
-            bool bIgnoreThis = false;
+            // Check if we have a private key for this...
+            long nCertificateCharacters = mxSecurityEnvironment->getCertificateCharacters(xCert);
 
-            // Do we already use that?
-            if( nCertificatesToIgnore )
-            {
-                OUString aIssuerName = xCert->getIssuerName();
-                for( sal_Int32 nSig = 0; nSig < nCertificatesToIgnore; ++nSig )
-                {
-                    const SignatureInformation& rInf = maCertsToIgnore[ nSig ];
-                    if ( ( aIssuerName == rInf.ouX509IssuerName ) &&
-                        ( xSerialNumberAdapter->toString( xCert->getSerialNumber() ) == rInf.ouX509SerialNumber ) )
-                    {
-                        bIgnoreThis = true;
-                        break;
-                    }
-                }
-            }
-
-            if ( !bIgnoreThis )
-            {
-                // Check if we have a private key for this...
-                long nCertificateCharacters = mxSecurityEnvironment->getCertificateCharacters( xCert );
-
-                if ( !( nCertificateCharacters & security::CertificateCharacters::HAS_PRIVATE_KEY ) )
-                    bIgnoreThis = true;
-
-            }
-
-            if ( bIgnoreThis )
+            if (!(nCertificateCharacters & security::CertificateCharacters::HAS_PRIVATE_KEY))
             {
                 ::comphelper::removeElementAt( maCerts, nCert );
                 nCertificates = maCerts.getLength();

xmlsecurity/source/dialogs/digitalsignaturesdialog.cxx

@@ -430,7 +430,7 @@ IMPL_LINK_NOARG_TYPED(DigitalSignaturesDialog, AddButtonHdl, Button*, void)
 
         uno::Reference<com::sun::star::security::XSerialNumberAdapter> xSerialNumberAdapter =
             ::com::sun::star::security::SerialNumberAdapter::create(mxCtx);
-        ScopedVclPtrInstance< CertificateChooser > aChooser( this, mxCtx, xSecEnv, maCurrentSignatureInformations );
+        ScopedVclPtrInstance< CertificateChooser > aChooser( this, mxCtx, xSecEnv );
         if ( aChooser->Execute() == RET_OK )
         {
             uno::Reference< ::com::sun::star::security::XCertificate > xCert = aChooser->GetSelectedCertificate();