forked from oz123/coredns-netbox-plugin
/
query.go
91 lines (76 loc) · 2.37 KB
/
query.go
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// Copyright 2020 Oz Tiram <oz.tiram@gmail.com>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package netbox
import (
"encoding/json"
"fmt"
"net/http"
"strings"
)
type Record struct {
// Family Family `json:"family"`
// Address string `json:"address"`
// HostName string `json:"dns_name,omitempty"`
Value string `json:"value"`
}
// type Family struct {
// Version int `json:"value"`
// Label string `json:"label"`
// }
type RecordsList struct {
Records []Record `json:"results"`
}
func get(client *http.Client, url, token string) (*http.Response, error) {
// handle if provided client was not set up
if client == nil {
return nil, fmt.Errorf("provided *http.Client was invalid")
}
// set up HTTP request
req, err := http.NewRequest("GET", url, nil)
if err != nil {
return nil, err
}
// set authorization header for request to NetBox
req.Header.Set("Authorization", fmt.Sprintf("Token %s", token))
// do request
return client.Do(req)
}
func (n *Netbox) query(host string, dns_type string) (RecordsList, error) {
var (
dns_name = strings.TrimSuffix(host, ".")
requrl = fmt.Sprintf("%s/?type=%s&name=%s", n.Url, dns_type, dns_name)
records RecordsList
)
// do http request against NetBox instance
resp, err := get(n.Client, requrl, n.Token)
if err != nil {
return records, fmt.Errorf("Problem performing request: %w", err)
}
// ensure body is closed once we are done
defer resp.Body.Close()
// status code must be http.StatusOK
if resp.StatusCode != http.StatusOK {
return records, fmt.Errorf("Bad HTTP response code: %d", resp.StatusCode)
}
// read and parse response body
decoder := json.NewDecoder(resp.Body)
if err := decoder.Decode(&records); err != nil {
return records, fmt.Errorf("Could not unmarshal response: %w", err)
}
// handle empty list of records
if len(records.Records) == 0 {
return records, nil
}
return records, nil
}