http.go

/*
   conntrack-logger
   Copyright (C) 2015 Denis V Chapligin <akashihi@gmail.com>
   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.
   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, see <http://www.gnu.org/licenses/>.
*/

package main

import (
	"errors"
	"fmt"
	"io/ioutil"
	"net/http"
	"strconv"
)

func getPage(host string, port int) (string, error) {
	url := fmt.Sprintf("http://%s:%d/squid-internal-mgr/counters", host, port)

	resp, err := http.Get(url)
	if err != nil {
		log.Error("Can't request status page: %v", err)
		return "", err
	}
	defer resp.Body.Close()
	if resp.StatusCode != 200 {
		log.Error("Server responded with non-success code: %d", resp.StatusCode)
		return "", errors.New(strconv.Itoa(resp.StatusCode))
	}
	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		log.Error("Can't load status page: %v", err)
		return "", err
	}

	return string(body), nil
}