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cryptcontroller.h
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/* @file cryptcontroller.h
* @brief Helper to handle sign and encrypt
*
* Copyright (C) 2018 Intevation GmbH
*
* This file is part of GpgOL.
*
* GpgOL is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* GpgOL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CRYPTCONTROLLER_H
#define CRYPTCONTROLLER_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <gpgme++/data.h>
#include <string.h>
class Recipient;
class Mail;
class Overlay;
namespace GpgME
{
class SigningResult;
class Error;
} // namespace GpgME
class CryptController
{
public:
/** @brief Construct a Crypthelper for a Mail object. */
CryptController (Mail *mail, bool encrypt, bool sign,
GpgME::Protocol proto);
~CryptController ();
/** @brief Collect the data from the mail into the internal
data structures.
@returns 0 on success.
*/
int collect_data ();
/** @brief Does the actual crypto work according to op.
Can be called in a different thread then the UI Thread.
An operational error is returned in the passed err
variable. Additional diagnostic output is passed
through r_diag.
@returns 0 on success.
*/
int do_crypto (GpgME::Error &err, std::string &r_diag);
/** @brief Update the MAPI structure of the mail with
the result. */
int update_mail_mapi ();
/** @brief Get an inline body as std::string. */
std::string get_inline_data ();
/** @brief Get the protocol. Valid after do_crypto. */
GpgME::Protocol get_protocol () const { return m_proto; }
/** @brief check weather something was encrypted. */
bool is_encrypter () const { return m_encrypt; }
/** @brief check if the cryptcontroller has all keys for
the operation. */
bool is_resolved () const;
private:
void clear_keys ();
void prepare_encryption ();
int resolve_keys ();
int resolve_keys_cached ();
bool resolve_through_protocol (GpgME::Protocol proto);
int parse_output (GpgME::Data &resolverOutput);
int lookup_fingerprints (const std::string &sigFpr,
const std::vector<std::string> recpFprs);
void parse_micalg (const GpgME::SigningResult &sResult);
void start_crypto_overlay ();
private:
Mail *m_mail;
GpgME::Data m_input, m_bodyInput, m_signedData, m_output;
std::string m_micalg;
bool m_encrypt, m_sign, m_crypto_success;
GpgME::Protocol m_proto;
std::string m_sender;
std::vector<GpgME::Key> m_signer_keys;
std::vector<GpgME::Key> m_enc_keys;
std::unique_ptr<Overlay> m_overlay;
std::vector<Recipient> m_recipients;
};
#endif

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