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115 lines
3.6 KiB
C++
115 lines
3.6 KiB
C++
#pragma once
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#include "IServer.h"
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#include <common/logger_useful.h>
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#include <Common/HTMLForm.h>
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#include <Common/StringUtils/StringUtils.h>
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#include <Poco/Net/HTTPServerRequest.h>
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#include <Poco/Net/HTTPServerResponse.h>
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#include <Poco/Net/HTTPRequestHandlerFactory.h>
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#include <Interpreters/AsynchronousMetrics.h>
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namespace DB
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{
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/// Handle request using child handlers
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class HTTPRequestHandlerFactoryMain : public Poco::Net::HTTPRequestHandlerFactory, boost::noncopyable
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{
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private:
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using TThis = HTTPRequestHandlerFactoryMain;
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Logger * log;
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std::string name;
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std::vector<Poco::Net::HTTPRequestHandlerFactory *> child_factories;
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public:
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~HTTPRequestHandlerFactoryMain();
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HTTPRequestHandlerFactoryMain(const std::string & name_);
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TThis * addHandler(Poco::Net::HTTPRequestHandlerFactory * child_factory);
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Poco::Net::HTTPRequestHandler * createRequestHandler(const Poco::Net::HTTPServerRequest & request) override;
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};
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template <typename TEndpoint>
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class HandlingRuleHTTPHandlerFactory : public Poco::Net::HTTPRequestHandlerFactory
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{
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public:
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using TThis = HandlingRuleHTTPHandlerFactory<TEndpoint>;
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using Filter = std::function<bool(const Poco::Net::HTTPServerRequest &)>;
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template <typename... TArgs>
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HandlingRuleHTTPHandlerFactory(TArgs &&... args)
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{
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creator = [args = std::tuple<TArgs...>(std::forward<TArgs>(args) ...)]()
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{
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return std::apply([&](auto && ... endpoint_args)
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{
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return new TEndpoint(std::forward<decltype(endpoint_args)>(endpoint_args)...);
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}, std::move(args));
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};
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}
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TThis * addFilter(Filter cur_filter)
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{
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Filter prev_filter = filter;
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filter = [prev_filter, cur_filter](const auto & request)
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{
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return prev_filter ? prev_filter(request) && cur_filter(request) : cur_filter(request);
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};
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return this;
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}
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TThis * attachStrictPath(const String & strict_path)
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{
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return addFilter([strict_path](const auto & request) { return request.getURI() == strict_path; });
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}
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TThis * attachNonStrictPath(const String & non_strict_path)
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{
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return addFilter([non_strict_path](const auto & request) { return startsWith(request.getURI(), non_strict_path); });
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}
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/// Handle GET or HEAD endpoint on specified path
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TThis * allowGetAndHeadRequest()
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{
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return addFilter([](const auto & request)
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{
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return request.getMethod() == Poco::Net::HTTPRequest::HTTP_GET
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|| request.getMethod() == Poco::Net::HTTPRequest::HTTP_HEAD;
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});
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}
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/// Handle POST or GET with params
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TThis * allowPostAndGetParamsRequest()
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{
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return addFilter([](const auto & request)
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{
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return request.getURI().find('?') != std::string::npos
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|| request.getMethod() == Poco::Net::HTTPRequest::HTTP_POST;
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});
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}
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Poco::Net::HTTPRequestHandler * createRequestHandler(const Poco::Net::HTTPServerRequest & request) override
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{
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return filter(request) ? creator() : nullptr;
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}
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private:
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Filter filter;
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std::function<Poco::Net::HTTPRequestHandler * ()> creator;
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};
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Poco::Net::HTTPRequestHandlerFactory * createStaticHandlerFactory(IServer & server, const std::string & config_prefix);
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Poco::Net::HTTPRequestHandlerFactory * createDynamicHandlerFactory(IServer & server, const std::string & config_prefix);
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Poco::Net::HTTPRequestHandlerFactory * createPredefinedHandlerFactory(IServer & server, const std::string & config_prefix);
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Poco::Net::HTTPRequestHandlerFactory * createHandlerFactory(IServer & server, AsynchronousMetrics & async_metrics, const std::string & name);
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}
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