Files
cgrates/utils/http_client.go
2015-10-01 14:47:40 +02:00

100 lines
2.8 KiB
Go

/*
Real-time Charging System for Telecom & ISP environments
Copyright (C) 2012-2015 ITsysCOM GmbH
This program is free software: you can Storagetribute 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 WITH*out 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 utils
import (
"bytes"
"crypto/tls"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"os"
"time"
)
// Post without automatic failover
func HttpJsonPost(url string, skipTlsVerify bool, content interface{}) ([]byte, error) {
body, err := json.Marshal(content)
if err != nil {
return nil, err
}
tr := &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: skipTlsVerify},
}
client := &http.Client{Transport: tr}
resp, err := client.Post(url, "application/json", bytes.NewBuffer(body))
if err != nil {
return nil, err
}
defer resp.Body.Close()
respBody, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
if resp.StatusCode > 299 {
return respBody, fmt.Errorf("Unexpected status code received: %d", resp.StatusCode)
}
return respBody, nil
}
// Post with built-in failover
func HttpPoster(url string, skipTlsVerify bool, content interface{}, retries int, fallbackFilePath string) ([]byte, error) {
body, err := json.Marshal(content)
if err != nil {
return nil, err
}
tr := &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: skipTlsVerify},
}
client := &http.Client{Transport: tr}
delay := Fib()
for i := 0; i < retries; i++ {
resp, err := client.Post(url, "application/json", bytes.NewBuffer(body))
if err != nil {
Logger.Warning(fmt.Sprintf("<HttpPoster> Posting to : <%s>, error: <%s>", url, err.Error()))
time.Sleep(delay())
continue
}
defer resp.Body.Close()
respBody, err := ioutil.ReadAll(resp.Body)
if err != nil {
Logger.Warning(fmt.Sprintf("<HttpPoster> Posting to : <%s>, error: <%s>", url, err.Error()))
time.Sleep(delay())
continue
}
if resp.StatusCode > 299 {
Logger.Warning(fmt.Sprintf("<HttpPoster> Posting to : <%s>, unexpected status code received: <%d>", url, resp.StatusCode))
time.Sleep(delay())
continue
}
return respBody, nil
}
// If we got that far, post was not possible, write it on disk
fileOut, err := os.Create(fallbackFilePath)
if err != nil {
return nil, err
}
defer fileOut.Close()
if _, err := fileOut.Write(body); err != nil {
return nil, err
}
return nil, nil
}