gpgidsigner.h

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// SPDX-FileCopyrightText: 2026 Anne Jan Brouwer
// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef SRC_GPGIDSIGNER_H_
#define SRC_GPGIDSIGNER_H_
 
#include <QString>
#include <QStringList>
#include <functional>

class GpgIdSigner {
public:
  static constexpr qint64 kMaxSignatureBytes = 64 * 1024;

  using Exec =
      std::function<int(const QString &app, const QStringList &args,
                        const QString &input, QString *out, QString *err)>;

  GpgIdSigner(QString gpgExecutable, QStringList signingKeys,
              Exec exec = Exec());

  static auto keysFromSetting(const QString &passSigningKey) -> QStringList;

  auto enabled() const -> bool { return !m_keys.isEmpty(); }

  auto keys() const -> const QStringList & { return m_keys; }

  auto haveSecretKey() const -> bool;

  auto sign(const QString &gpgIdFile, const QByteArray &contents,
            QString *error = nullptr) const -> bool;

  auto verify(const QByteArray &contents, const QString &signatureFile) const
      -> bool;

  auto verifyFile(const QString &gpgIdFile, QByteArray *contents) const -> bool;

  static auto validSigFingerprints(const QString &statusOutput) -> QStringList;
 
private:
  QString m_gpg;
  QStringList m_keys;
  Exec m_exec;

  auto run(const QStringList &args, QString *out = nullptr,
           QString *err = nullptr, const QString &input = QString()) const
      -> int;
};
 
#endif // SRC_GPGIDSIGNER_H_