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/*
* This file is part of PowerDNS or dnsdist.
* Copyright -- PowerDNS.COM B.V. and its contributors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* In addition, for the avoidance of any doubt, permission is granted to
* link this program with OpenSSL and to (re)distribute the binaries
* produced as the result of such linking.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <yahttp/yahttp.hpp>
#include "dnsdist.hh"
#include "dnsdist-lua.hh"
#include "dnsdist-web.hh"
namespace dnsdist::webserver
{
void registerWebHandler(const std::string& endpoint, std::function<void(const YaHTTP::Request&, YaHTTP::Response&)> handler, bool isLua);
}
void setupLuaWeb([[maybe_unused]] LuaContext& luaCtx)
{
#ifndef DISABLE_LUA_WEB_HANDLERS
luaCtx.writeFunction("registerWebHandler", [](const std::string& path, std::function<void(const YaHTTP::Request*, YaHTTP::Response*)> handler) {
/* LuaWrapper does a copy for objects passed by reference, so we pass a pointer */
dnsdist::webserver::registerWebHandler(path, [handler](const YaHTTP::Request& req, YaHTTP::Response& resp) { handler(&req, &resp); }, true);
});
luaCtx.registerMember<std::string(YaHTTP::Request::*)>("path", [](const YaHTTP::Request& req) -> std::string { return req.url.path; }, [](YaHTTP::Request& req, const std::string& path) { (void)req; (void) path; });
luaCtx.registerMember<int(YaHTTP::Request::*)>("version", [](const YaHTTP::Request& req) -> int { return req.version; }, [](YaHTTP::Request& req, int version) { (void)req; (void)version; });
luaCtx.registerMember<std::string(YaHTTP::Request::*)>("method", [](const YaHTTP::Request& req) -> std::string { return req.method; }, [](YaHTTP::Request& req, const std::string& method) { (void)req; (void) method; });
luaCtx.registerMember<std::string(YaHTTP::Request::*)>("body", [](const YaHTTP::Request& req) -> std::string { return req.body; }, [](YaHTTP::Request& req, const std::string& body) { (void)req; (void)body; });
luaCtx.registerMember<LuaAssociativeTable<std::string>(YaHTTP::Request::*)>("getvars", [](const YaHTTP::Request& req) {
LuaAssociativeTable<std::string> values;
for (const auto& entry : req.getvars) {
values.insert({entry.first, entry.second});
}
return values;
}, [](YaHTTP::Request& req, const LuaAssociativeTable<std::string>& values) { (void)req; (void)values; });
luaCtx.registerMember<LuaAssociativeTable<std::string>(YaHTTP::Request::*)>("postvars", [](const YaHTTP::Request& req) {
LuaAssociativeTable<std::string> values;
for (const auto& entry : req.postvars) {
values.insert({entry.first, entry.second});
}
return values;
}, [](YaHTTP::Request& req, const LuaAssociativeTable<std::string>& values) { (void)req; (void)values; });
luaCtx.registerMember<LuaAssociativeTable<std::string>(YaHTTP::Request::*)>("headers", [](const YaHTTP::Request& req) {
LuaAssociativeTable<std::string> values;
for (const auto& entry : req.headers) {
values.insert({entry.first, entry.second});
}
return values;
}, [](YaHTTP::Request& req, const LuaAssociativeTable<std::string>& values) { (void)req; (void)values; });
/* Response */
luaCtx.registerMember<std::string(YaHTTP::Response::*)>("body", [](const YaHTTP::Response& resp) -> const std::string { return resp.body; }, [](YaHTTP::Response& resp, const std::string& body) { resp.body = body; });
luaCtx.registerMember<int(YaHTTP::Response::*)>("status", [](const YaHTTP::Response& resp) -> int { return resp.status; }, [](YaHTTP::Response& resp, int status) { resp.status = status; });
luaCtx.registerMember<LuaAssociativeTable<std::string>(YaHTTP::Response::*)>("headers", [](const YaHTTP::Response& resp) {
LuaAssociativeTable<std::string> values;
for (const auto& entry : resp.headers) {
values.insert({entry.first, entry.second});
}
return values;
}, [](YaHTTP::Response& resp, const LuaAssociativeTable<std::string>& values) {
resp.headers.clear();
for (const auto& entry : values) {
resp.headers.insert({entry.first, entry.second});
}
});
#endif /* DISABLE_LUA_WEB_HANDLERS */
}
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