WordClockESP/lib/framework/SecurityManager.h
rjwats 0e2124062f
Use references & flash strings where approperate (#110)
* pass originId as const reference
* store strings for serial logging in flash
* Use string references where approperate.
2020-05-21 08:42:21 +01:00

98 lines
2.6 KiB
C++

#ifndef SecurityManager_h
#define SecurityManager_h
#include <ArduinoJsonJWT.h>
#include <ESPAsyncWebServer.h>
#include <ESPUtils.h>
#include <AsyncJson.h>
#include <list>
#ifndef FACTORY_JWT_SECRET
#define FACTORY_JWT_SECRET ESPUtils::defaultDeviceValue()
#endif
#define ACCESS_TOKEN_PARAMATER "access_token"
#define AUTHORIZATION_HEADER "Authorization"
#define AUTHORIZATION_HEADER_PREFIX "Bearer "
#define AUTHORIZATION_HEADER_PREFIX_LEN 7
#define MAX_JWT_SIZE 128
class User {
public:
String username;
String password;
bool admin;
public:
User(String username, String password, bool admin) : username(username), password(password), admin(admin) {
}
};
class Authentication {
public:
User* user;
boolean authenticated;
public:
Authentication(User& user) : user(new User(user)), authenticated(true) {
}
Authentication() : user(nullptr), authenticated(false) {
}
~Authentication() {
delete (user);
}
};
typedef std::function<boolean(Authentication& authentication)> AuthenticationPredicate;
class AuthenticationPredicates {
public:
static bool NONE_REQUIRED(Authentication& authentication) {
return true;
};
static bool IS_AUTHENTICATED(Authentication& authentication) {
return authentication.authenticated;
};
static bool IS_ADMIN(Authentication& authentication) {
return authentication.authenticated && authentication.user->admin;
};
};
class SecurityManager {
public:
/*
* Authenticate, returning the user if found
*/
virtual Authentication authenticate(const String& username, const String& password) = 0;
/*
* Check the request header for the Authorization token
*/
virtual Authentication authenticateRequest(AsyncWebServerRequest* request) = 0;
/*
* Generate a JWT for the user provided
*/
virtual String generateJWT(User* user) = 0;
/**
* Filter a request with the provided predicate, only returning true if the predicate matches.
*/
virtual ArRequestFilterFunction filterRequest(AuthenticationPredicate predicate) = 0;
/**
* Wrap the provided request to provide validation against an AuthenticationPredicate.
*/
virtual ArRequestHandlerFunction wrapRequest(ArRequestHandlerFunction onRequest,
AuthenticationPredicate predicate) = 0;
/**
* Wrap the provided json request callback to provide validation against an AuthenticationPredicate.
*/
virtual ArJsonRequestHandlerFunction wrapCallback(ArJsonRequestHandlerFunction callback,
AuthenticationPredicate predicate) = 0;
};
#endif // end SecurityManager_h