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Decrypt application

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This commit is contained in:
Jakub Melka
2021-05-11 18:46:33 +02:00
parent d607c24459
commit aa059ea1f6
30 changed files with 295 additions and 87 deletions
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7
Pdf4QtLib/sources/pdfsecurityhandler.h
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@ -116,8 +116,9 @@ public:
/// to cancel the authentication (and \p Cancelled authentication result is returned) or true,
/// to try provided password.
/// \param getPasswordCallback Callback to get user password
/// \param authorizeOwnerOnly Authorize owner only
/// \returns Result of authentication
virtual AuthorizationResult authenticate(const std::function<QString(bool*)>& getPasswordCallback) = 0;
virtual AuthorizationResult authenticate(const std::function<QString(bool*)>& getPasswordCallback, bool authorizeOwnerOnly) = 0;
/// Decrypts the PDF object. This function works properly only (and only if)
/// \p authenticate function returns user/owner authorization code.
@ -188,7 +189,7 @@ class PDFNoneSecurityHandler : public PDFSecurityHandler
{
public:
virtual EncryptionMode getMode() const override { return EncryptionMode::None; }
virtual AuthorizationResult authenticate(const std::function<QString(bool*)>&) override { return AuthorizationResult::OwnerAuthorized; }
virtual AuthorizationResult authenticate(const std::function<QString(bool*)>&, bool) override { return AuthorizationResult::OwnerAuthorized; }
virtual QByteArray decrypt(const QByteArray& data, PDFObjectReference, EncryptionScope) const override { return data; }
virtual QByteArray decryptByFilter(const QByteArray& data, const QByteArray&, PDFObjectReference) const override { return data; }
virtual bool isMetadataEncrypted() const override { return true; }
@ -202,7 +203,7 @@ class PDFStandardSecurityHandler : public PDFSecurityHandler
{
public:
virtual EncryptionMode getMode() const override { return EncryptionMode::Standard; }
virtual AuthorizationResult authenticate(const std::function<QString(bool*)>& getPasswordCallback) override;
virtual AuthorizationResult authenticate(const std::function<QString(bool*)>& getPasswordCallback, bool authorizeOwnerOnly) override;
virtual QByteArray decrypt(const QByteArray& data, PDFObjectReference reference, EncryptionScope encryptionScope) const override;
virtual QByteArray decryptByFilter(const QByteArray& data, const QByteArray& filterName, PDFObjectReference reference) const override;
virtual bool isMetadataEncrypted() const override { return m_encryptMetadata; }