Query Stop Forum Spam

sfs.go

func CheckStopForumSpam(ip string) error {

        sfs_endpoint, err := url.Parse("http://api.stopforumspam.org/api")
        if err != nil {
                return errors.New("error parsing sfs endpoint")
        }

        queryValues := url.Values{}

        if ip == "" {
                return errors.New("no ip provided")
        }

        queryValues.Add("ip", ip)
        queryValues.Add("f", "json")

        sfs_endpoint.RawQuery = queryValues.Encode()

        res, err := http.Get(sfs_endpoint.String())
        if err != nil {
                return errors.New("error reaching sfs")
        }
        defer res.Body.Close()

        res.Header.Add("User-Agent", "Pram/1.2")

        body, err := ioutil.ReadAll(res.Body)
        if err != nil {
                return errors.New("error parsing sfs response")
        }

        sfs_data := StopForumSpam{}

        err = json.Unmarshal(body, &sfs_data)
        if err != nil {
                return errors.New("error parsing sfs data")
        }

        if sfs_data.Ip.Confidence > SfsConfidence {
                return errors.New("ip on blacklist")
        }

        return nil

}

// Stop Forum Spam return format
type StopForumSpam struct {
        Ip struct {
                Appears    float64 `json:"appears"`
                Confidence float64 `json:"confidence"`
                Frequency  float64 `json:"frequency"`
                Lastseen   string  `json:"lastseen"`
        } `json:"ip"`
        Success float64 `json:"success"`
}