mirror of https://github.com/JakubMelka/PDF4QT.git
84 lines
2.9 KiB
C++
84 lines
2.9 KiB
C++
// Copyright (C) 2020 Jakub Melka
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//
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// This file is part of PdfForQt.
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//
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// PdfForQt is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// PdfForQt is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with PDFForQt. If not, see <https://www.gnu.org/licenses/>.
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#ifndef PDFSIGNATUREHANDLER_IMPL_H
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#define PDFSIGNATUREHANDLER_IMPL_H
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#include "pdfsignaturehandler.h"
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#include <openssl/x509.h>
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#include <openssl/x509v3.h>
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#include <openssl/pkcs7.h>
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namespace pdf
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{
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/// PKCS7 public key signature handler
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class PDFPublicKeySignatureHandler : public PDFSignatureHandler
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{
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protected:
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explicit PDFPublicKeySignatureHandler(const PDFFormFieldSignature* signatureField, const QByteArray& sourceData, const Parameters& parameters) :
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m_signatureField(signatureField),
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m_sourceData(sourceData),
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m_parameters(parameters)
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{
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}
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void initializeResult(PDFSignatureVerificationResult& result) const;
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void verifyCertificate(PDFSignatureVerificationResult& result) const;
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void verifySignature(PDFSignatureVerificationResult& result) const;
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void addTrustedCertificates(X509_STORE* store) const;
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BIO* getSignedDataBuffer(PDFSignatureVerificationResult& result, QByteArray& outputBuffer) const;
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public:
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/// Return a list of certificates from PKCS7 object
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static STACK_OF(X509)* getCertificates(PKCS7* pkcs7);
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/// Return certificate info for given certificate
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static PDFCertificateInfo getCertificateInfo(X509* certificate);
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/// Returns name converted to QString
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static QString getStringFromX509Name(X509_NAME* name, int nid);
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/// Converts ASN time to QDateTime. If conversion fails, then invalid
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/// datetime is returned.
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static QDateTime getDateTimeFromASN(const ASN1_TIME* time);
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protected:
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const PDFFormFieldSignature* m_signatureField;
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QByteArray m_sourceData;
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Parameters m_parameters;
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};
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class PDFSignatureHandler_adbe_pkcs7_detached : public PDFPublicKeySignatureHandler
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{
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public:
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explicit PDFSignatureHandler_adbe_pkcs7_detached(const PDFFormFieldSignature* signatureField, const QByteArray& sourceData, const Parameters& parameters) :
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PDFPublicKeySignatureHandler(signatureField, sourceData, parameters)
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{
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}
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virtual PDFSignatureVerificationResult verify() const override;
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};
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} // namespace pdf
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#endif // PDFSIGNATUREHANDLER_IMPL_H
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