mirror of
https://github.com/binary-kitchen/doorlockd
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9c549d1d27
Make token size dynamically adjustable. Shorter tokens are absolutely sufficient and simplify the manual copying of tokens Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
105 lines
2.7 KiB
C++
105 lines
2.7 KiB
C++
#ifndef LOGIC_H
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#define LOGIC_H
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#include <condition_variable>
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#include <mutex>
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#include <string>
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#include <thread>
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#include "config.h"
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#include "clientmessage.h"
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#include "door.h"
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#include "logger.h"
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#include "request.h"
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#include "response.h"
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/* The "Logic" class
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*
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* This class is initilized by all settings.
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*
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* It handles incoming requests and allows modifications of the door
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*/
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class Logic
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{
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public:
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Logic(const std::chrono::seconds tokenTimeout,
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const std::string &ldapUri,
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const std::string &bindDN,
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const std::string &webPrefix,
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const unsigned int tokenLength,
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const std::string &serDev,
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const unsigned int baudrate,
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std::condition_variable &onClientUpdate);
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~Logic();
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// Parse incoming JSON Requests
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Response request(const Request &request);
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// Send direct command to door without credential checks
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enum class DoorCommand { Lock, Unlock };
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Response processDoor(const DoorCommand &doorCommand);
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// Returns the current Token
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Clientmessage getClientMessage();
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private:
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// Internal lock wrapper
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Response _lock();
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// Internal unlock wrapper
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Response _unlock();
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// Checks if the incoming token is valid
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Response _checkToken(std::string token) const;
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// Checks if incoming credentials against LDAP
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Response _checkLDAP(const std::string &user,
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const std::string &password);
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// Creates a new random token and draws it on the epaper.
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// stillValid indicates whether the old (previous) token is still valid
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void _createNewToken(const bool stillValid);
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void _doorCallback(Doormessage doormessage);
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Logger &_logger;
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// The door
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Door _door;
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// The current token
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std::string _curToken = {};
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// The previous token
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std::string _prevToken = {};
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// Indicates whether the previous token is valid
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bool _prevValid = { false };
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// Tokens are refreshed all tokenTimout seconds
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const std::chrono::seconds _tokenTimeout;
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// Thread for asynchronosly updating tokens
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std::thread _tokenUpdater = {};
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// Thread can be force-triggered for updates using the condition variable
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std::condition_variable _tokenCondition = {};
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// stop indicator for the thread
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bool _run = true;
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// General mutex for concurrent data access
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mutable std::mutex _mutex = {};
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Doormessage _doormessage = {};
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// This variable gets notified on token updates
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std::condition_variable &_onClientUpdate;
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// The URI of the ldap server
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const std::string _ldapUri;
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// LDAP bindDN
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const std::string _bindDN;
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// Prefix of the website
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const std::string _webPrefix;
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// Length of the token in bytes
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const unsigned int _tokenLength;
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};
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#endif
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