certspotter/loglist/load.go

62 lines
1.3 KiB
Go

// Copyright (C) 2020 Opsmate, Inc.
//
// This Source Code Form is subject to the terms of the Mozilla
// Public License, v. 2.0. If a copy of the MPL was not distributed
// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
//
// This software is distributed WITHOUT A WARRANTY OF ANY KIND.
// See the Mozilla Public License for details.
package loglist
import (
"encoding/json"
"fmt"
"net/http"
"io/ioutil"
"strings"
)
func Load(urlOrFile string) (*List, error) {
if strings.HasPrefix(urlOrFile, "https://") {
return Fetch(urlOrFile)
} else {
return ReadFile(urlOrFile)
}
}
func Fetch(url string) (*List, error) {
response, err := http.Get(url)
if err != nil {
return nil, err
}
content, err := ioutil.ReadAll(response.Body)
response.Body.Close()
if err != nil {
return nil, err
}
if response.StatusCode != 200 {
return nil, fmt.Errorf("%s: %s", url, response.Status)
}
return Unmarshal(content)
}
func ReadFile(filename string) (*List, error) {
content, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
return Unmarshal(content)
}
func Unmarshal(jsonBytes []byte) (*List, error) {
list := new(List)
if err := json.Unmarshal(jsonBytes, list); err != nil {
return nil, err
}
if err := list.Validate(); err != nil {
return nil, fmt.Errorf("Invalid log list: %s", err)
}
return list, nil
}