forked from go-acme/lego
/
client.go
123 lines (97 loc) · 2.5 KB
/
client.go
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package gandiv5
import (
"bytes"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
)
const apiKeyHeader = "X-Api-Key"
// types for JSON responses with only a message
type apiResponse struct {
Message string `json:"message"`
UUID string `json:"uuid,omitempty"`
}
// Record TXT record representation
type Record struct {
RRSetTTL int `json:"rrset_ttl"`
RRSetValues []string `json:"rrset_values"`
RRSetName string `json:"rrset_name,omitempty"`
RRSetType string `json:"rrset_type,omitempty"`
}
func (d *DNSProvider) newRequest(method, resource string, body interface{}) (*http.Request, error) {
u := fmt.Sprintf("%s/%s", d.config.BaseURL, resource)
if body == nil {
req, err := http.NewRequest(method, u, nil)
if err != nil {
return nil, err
}
return req, nil
}
reqBody, err := json.Marshal(body)
if err != nil {
return nil, err
}
req, err := http.NewRequest(method, u, bytes.NewBuffer(reqBody))
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", "application/json")
return req, nil
}
func (d *DNSProvider) do(req *http.Request, v interface{}) error {
if len(d.config.APIKey) > 0 {
req.Header.Set(apiKeyHeader, d.config.APIKey)
}
resp, err := d.config.HTTPClient.Do(req)
if err != nil {
return err
}
err = checkResponse(resp)
if err != nil {
return err
}
if v == nil {
return nil
}
raw, err := readBody(resp)
if err != nil {
return fmt.Errorf("failed to read body: %v", err)
}
if len(raw) > 0 {
err = json.Unmarshal(raw, v)
if err != nil {
return fmt.Errorf("unmarshaling error: %v: %s", err, string(raw))
}
}
return nil
}
func checkResponse(resp *http.Response) error {
if resp.StatusCode == 404 && resp.Request.Method == http.MethodGet {
return nil
}
if resp.StatusCode >= 400 {
data, err := readBody(resp)
if err != nil {
return fmt.Errorf("%d [%s] request failed: %v", resp.StatusCode, http.StatusText(resp.StatusCode), err)
}
message := &apiResponse{}
err = json.Unmarshal(data, message)
if err != nil {
return fmt.Errorf("%d [%s] request failed: %v: %s", resp.StatusCode, http.StatusText(resp.StatusCode), err, data)
}
return fmt.Errorf("%d [%s] request failed: %s", resp.StatusCode, http.StatusText(resp.StatusCode), message.Message)
}
return nil
}
func readBody(resp *http.Response) ([]byte, error) {
if resp.Body == nil {
return nil, fmt.Errorf("response body is nil")
}
defer resp.Body.Close()
rawBody, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
return rawBody, nil
}