GpgKeyManager.h

 
#ifndef GPGFRONTEND_ZH_CN_TS_GPGKEYMANAGER_H
#define GPGFRONTEND_ZH_CN_TS_GPGKEYMANAGER_H
 
#include <functional>
#include <string>
 
#include "core/GpgContext.h"
#include "core/GpgFunctionObject.h"
#include "core/GpgModel.h"
 
namespace GpgFrontend {
 
class GPGFRONTEND_CORE_EXPORT GpgKeyManager
    : public SingletonFunctionObject<GpgKeyManager> {
 public:
  explicit GpgKeyManager(
      int channel = SingletonFunctionObject::GetDefaultChannel());
 
  bool SignKey(const GpgKey& target, KeyArgsList& keys, const std::string& uid,
               const std::unique_ptr<boost::posix_time::ptime>& expires);
 
  bool RevSign(const GpgFrontend::GpgKey& key,
               const GpgFrontend::SignIdArgsListPtr& signature_id);
 
  bool SetExpire(const GpgKey& key, std::unique_ptr<GpgSubKey>& subkey,
                 std::unique_ptr<boost::posix_time::ptime>& expires);
 
  bool SetOwnerTrustLevel(const GpgKey& key, int trust_level);
 
 private:
  static gpgme_error_t interactor_cb_fnc(void* handle, const char* status,
                                         const char* args, int fd);
 
  using Command = std::string;
  using AutomatonState = enum {
    AS_START,
    AS_COMMAND,
    AS_VALUE,
    AS_REALLY_ULTIMATE,
    AS_SAVE,
    AS_ERROR,
    AS_QUIT,
  };
 
  struct AutomatonHandelStruct;
 
  using AutomatonActionHandler =
      std::function<Command(AutomatonHandelStruct&, AutomatonState)>;
  using AutomatonNextStateHandler =
      std::function<AutomatonState(AutomatonState, std::string, std::string)>;
 
  struct AutomatonHandelStruct {
    void SetStatus(AutomatonState next_state) { current_state_ = next_state; }
    AutomatonState CuurentStatus() { return current_state_; }
    void SetHandler(AutomatonNextStateHandler next_state_handler,
                    AutomatonActionHandler action_handler) {
      next_state_handler_ = next_state_handler;
      action_handler_ = action_handler;
    }
    AutomatonState NextState(std::string gpg_status, std::string args) {
      return next_state_handler_(current_state_, gpg_status, args);
    }
    Command Action() { return action_handler_(*this, current_state_); }
 
    void SetSuccess(bool success) { success_ = success; }
 
    bool Success() { return success_; }
 
    std::string KeyFpr() { return key_fpr_; }
 
    AutomatonHandelStruct(std::string key_fpr) : key_fpr_(key_fpr) {}
 
   private:
    AutomatonState current_state_ = AS_START;
    AutomatonNextStateHandler next_state_handler_;
    AutomatonActionHandler action_handler_;
    bool success_ = false;
    std::string key_fpr_;
  };
 
  GpgContext& ctx_ =
      GpgContext::GetInstance(SingletonFunctionObject::GetChannel());  
};
 
}  // namespace GpgFrontend
 
#endif  // GPGFRONTEND_ZH_CN_TS_GPGKEYMANAGER_H