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