mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
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153 lines
2.8 KiB
C++
153 lines
2.8 KiB
C++
/** API Request.
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*
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* @file
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* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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* @copyright 2014-2020, Institute for Automation of Complex Power Systems, EONERC
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* @license GNU General Public License (version 3)
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*
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* VILLASnode
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************************/
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#pragma once
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#include <regex>
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#include <jansson.h>
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#include <villas/log.hpp>
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#include <villas/plugin.hpp>
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#include <villas/super_node.hpp>
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#include <villas/api/session.hpp>
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#define REGEX_UUID "[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}"
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namespace villas {
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namespace node {
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namespace api {
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/* Forward declarations */
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class Session;
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class Response;
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class RequestFactory;
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class Request {
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friend RequestFactory;
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friend Response;
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protected:
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Session *session;
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Logger logger;
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public:
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std::string uri;
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int method;
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std::smatch matches;
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json_t *body;
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RequestFactory *factory;
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enum Method {
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UNKNOWN,
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GET,
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POST,
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DELETE,
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OPTIONS,
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PUT,
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PATCH
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};
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Request(Session *s) :
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session(s),
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body(nullptr)
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{
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logger = logging.get("api:request");
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}
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virtual ~Request()
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{
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if (body)
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json_decref(body);
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}
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virtual Response * execute() = 0;
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virtual void prepare()
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{ }
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void setBody(json_t *j)
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{
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body = j;
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}
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};
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class RequestFactory : public plugin::Plugin {
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public:
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using plugin::Plugin::Plugin;
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virtual bool
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match(const std::string &uri, std::smatch &m) const = 0;
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virtual Request *
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make(Session *s) = 0;
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static Request *
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make(Session *s, const std::string &uri, int meth);
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};
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template<typename T, const char *name, const char *re, const char *desc>
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class RequestPlugin : public RequestFactory {
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protected:
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std::regex regex;
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public:
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RequestPlugin() :
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RequestFactory(),
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regex(re)
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{ }
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virtual Request *
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make(Session *s)
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{
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return new T(s);
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}
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// Get plugin name
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virtual std::string
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getName() const
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{
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return name;
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}
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// Get plugin description
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virtual std::string
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getDescription() const
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{
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return desc;
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}
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virtual bool
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match(const std::string &uri, std::smatch &match) const
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{
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return std::regex_match(uri, match, regex);
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}
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};
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} /* namespace api */
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} /* namespace node */
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} /* namespace villas */
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