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102 lines
3.3 KiB
C++
102 lines
3.3 KiB
C++
#pragma once
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#include <iostream>
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#include <memory>
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#include <mutex>
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#include <Poco/Net/HTTPClientSession.h>
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#include <Poco/Net/HTTPRequest.h>
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#include <Poco/Net/HTTPResponse.h>
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#include <Poco/URI.h>
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#include <Common/PoolBase.h>
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#include <Poco/URIStreamFactory.h>
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#include <IO/ConnectionTimeouts.h>
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namespace DB
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{
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class HTTPServerResponse;
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class HTTPException : public Exception
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{
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public:
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HTTPException(
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int code,
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const std::string & uri,
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Poco::Net::HTTPResponse::HTTPStatus http_status_,
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const std::string & reason,
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const std::string & body
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)
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: Exception(makeExceptionMessage(code, uri, http_status_, reason, body))
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, http_status(http_status_)
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{}
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HTTPException * clone() const override { return new HTTPException(*this); }
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void rethrow() const override { throw *this; }
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int getHTTPStatus() const { return http_status; }
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private:
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Poco::Net::HTTPResponse::HTTPStatus http_status{};
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static Exception makeExceptionMessage(
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int code,
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const std::string & uri,
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Poco::Net::HTTPResponse::HTTPStatus http_status,
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const std::string & reason,
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const std::string & body);
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const char * name() const noexcept override { return "DB::HTTPException"; }
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const char * className() const noexcept override { return "DB::HTTPException"; }
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};
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using PooledHTTPSessionPtr = PoolBase<Poco::Net::HTTPClientSession>::Entry; // SingleEndpointHTTPSessionPool::Entry
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using HTTPSessionPtr = std::shared_ptr<Poco::Net::HTTPClientSession>;
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/// If a session have this tag attached, it will be reused without calling `reset()` on it.
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/// All pooled sessions don't have this tag attached after being taken from a pool.
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/// If the request and the response were fully written/read, the client code should add this tag
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/// explicitly by calling `markSessionForReuse()`.
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struct HTTPSessionReuseTag
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{
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};
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void markSessionForReuse(HTTPSessionPtr session);
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void markSessionForReuse(PooledHTTPSessionPtr session);
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void setResponseDefaultHeaders(HTTPServerResponse & response, size_t keep_alive_timeout);
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/// Create session object to perform requests and set required parameters.
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HTTPSessionPtr makeHTTPSession(const Poco::URI & uri, const ConnectionTimeouts & timeouts);
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/// As previous method creates session, but tooks it from pool, without and with proxy uri.
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PooledHTTPSessionPtr makePooledHTTPSession(
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const Poco::URI & uri,
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const ConnectionTimeouts & timeouts,
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size_t per_endpoint_pool_size,
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bool wait_on_pool_size_limit = true);
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PooledHTTPSessionPtr makePooledHTTPSession(
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const Poco::URI & uri,
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const Poco::URI & proxy_uri,
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const ConnectionTimeouts & timeouts,
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size_t per_endpoint_pool_size,
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bool wait_on_pool_size_limit = true);
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bool isRedirect(Poco::Net::HTTPResponse::HTTPStatus status);
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/** Used to receive response (response headers and possibly body)
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* after sending data (request headers and possibly body).
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* Throws exception in case of non HTTP_OK (200) response code.
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* Returned istream lives in 'session' object.
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*/
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std::istream * receiveResponse(
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Poco::Net::HTTPClientSession & session, const Poco::Net::HTTPRequest & request, Poco::Net::HTTPResponse & response, bool allow_redirects);
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void assertResponseIsOk(
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const Poco::Net::HTTPRequest & request, Poco::Net::HTTPResponse & response, std::istream & istr, bool allow_redirects = false);
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}
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