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Security information

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This commit is contained in:
Jakub Melka
2019-12-21 15:02:11 +01:00
parent c228cf6d24
commit f2f398e82b
7 changed files with 183 additions and 5 deletions
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11
PdfForQtLib/sources/pdfsecurityhandler.h
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@ -92,6 +92,7 @@ public:
enum class AuthorizationResult
{
NoAuthorizationRequired,
UserAuthorized,
OwnerAuthorized,
Failed,
@ -146,6 +147,12 @@ public:
/// Returns true, if metadata are encrypted
virtual bool isMetadataEncrypted() const = 0;
/// Returns result of authorization process
virtual AuthorizationResult getAuthorizationResult() const = 0;
/// Returns version of the encryption
int getVersion() const { return m_V; }
/// Creates a security handler from the object. If object is null, then
/// "None" security handler is created. If error occurs, then exception is thrown.
/// \param encryptionDictionaryObject Encryption dictionary object
@ -185,7 +192,8 @@ public:
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; }
virtual bool isAllowed(Permission) const { return true; }
virtual bool isAllowed(Permission) const override { return true; }
virtual AuthorizationResult getAuthorizationResult() const override { return AuthorizationResult::NoAuthorizationRequired; }
};
/// Specifies the security using standard security handler (see PDF specification
@ -199,6 +207,7 @@ public:
virtual QByteArray decryptByFilter(const QByteArray& data, const QByteArray& filterName, PDFObjectReference reference) const override;
virtual bool isMetadataEncrypted() const override { return m_encryptMetadata; }
virtual bool isAllowed(Permission permission) const { return m_authorizationData.authorizationResult == AuthorizationResult::OwnerAuthorized || (m_permissions & static_cast<uint32_t>(permission)); }
virtual AuthorizationResult getAuthorizationResult() const override { return m_authorizationData.authorizationResult; }
struct AuthorizationData
{