ClickHouse/dbms/Common/HTMLForm.h

#pragma once

#include <sstream>
#include <Poco/Net/HTMLForm.h>
#include <Poco/Net/HTTPRequest.h>
#include <Poco/URI.h>

#include <IO/ReadHelpers.h>


/** Somehow, in case of POST, Poco::Net::HTMLForm doesn't read parameters from URL, only from body.
  * This helper allows to read parameters just from URL.
  */
struct HTMLForm : public Poco::Net::HTMLForm
{
    HTMLForm(const Poco::Net::HTTPRequest & request)
    {
        Poco::URI uri(request.getURI());
        std::istringstream istr(uri.getRawQuery());
        readUrl(istr);
    }

    HTMLForm(const Poco::URI & uri)
    {
        std::istringstream istr(uri.getRawQuery());
        readUrl(istr);
    }


    template <typename T>
    T getParsed(const std::string & key, T default_value)
    {
        auto it = find(key);
        return (it != end()) ? DB::parse<T>(it->second) : default_value;
    }

    template <typename T>
    T getParsed(const std::string & key)
    {
        return DB::parse<T>(get(key));
    }
};