client.go raw

   1  package internal
   2  
   3  import (
   4  	"bytes"
   5  	"context"
   6  	"encoding/json"
   7  	"fmt"
   8  	"io"
   9  	"net/http"
  10  	"net/url"
  11  	"strconv"
  12  	"time"
  13  
  14  	"github.com/go-acme/lego/v4/providers/dns/internal/errutils"
  15  )
  16  
  17  // DefaultEndpoint default API endpoint.
  18  const DefaultEndpoint = "https://api.autodns.com/v1/"
  19  
  20  // DefaultEndpointContext default API endpoint context.
  21  const DefaultEndpointContext int = 4
  22  
  23  // Client the Autodns API client.
  24  type Client struct {
  25  	username string
  26  	password string
  27  	context  int
  28  
  29  	BaseURL    *url.URL
  30  	HTTPClient *http.Client
  31  }
  32  
  33  // NewClient creates a new Client.
  34  func NewClient(username, password string, clientContext int) *Client {
  35  	baseURL, _ := url.Parse(DefaultEndpoint)
  36  
  37  	return &Client{
  38  		username:   username,
  39  		password:   password,
  40  		context:    clientContext,
  41  		BaseURL:    baseURL,
  42  		HTTPClient: &http.Client{Timeout: 5 * time.Second},
  43  	}
  44  }
  45  
  46  // AddRecords adds records.
  47  func (c *Client) AddRecords(ctx context.Context, domain string, records []*ResourceRecord) (*DataZoneResponse, error) {
  48  	zoneStream := &ZoneStream{Adds: records}
  49  
  50  	return c.updateZone(ctx, domain, zoneStream)
  51  }
  52  
  53  // RemoveRecords removes records.
  54  func (c *Client) RemoveRecords(ctx context.Context, domain string, records []*ResourceRecord) (*DataZoneResponse, error) {
  55  	zoneStream := &ZoneStream{Removes: records}
  56  
  57  	return c.updateZone(ctx, domain, zoneStream)
  58  }
  59  
  60  // https://github.com/InterNetX/domainrobot-api/blob/bdc8fe92a2f32fcbdb29e30bf6006ab446f81223/src/domainrobot.json#L21090
  61  func (c *Client) updateZone(ctx context.Context, domain string, zoneStream *ZoneStream) (*DataZoneResponse, error) {
  62  	endpoint := c.BaseURL.JoinPath("zone", domain, "_stream")
  63  
  64  	req, err := newJSONRequest(ctx, http.MethodPost, endpoint, zoneStream)
  65  	if err != nil {
  66  		return nil, err
  67  	}
  68  
  69  	var resp *DataZoneResponse
  70  	if err := c.do(req, &resp); err != nil {
  71  		return nil, err
  72  	}
  73  
  74  	return resp, nil
  75  }
  76  
  77  func (c *Client) do(req *http.Request, result any) error {
  78  	req.Header.Set("X-Domainrobot-Context", strconv.Itoa(c.context))
  79  	req.SetBasicAuth(c.username, c.password)
  80  
  81  	resp, err := c.HTTPClient.Do(req)
  82  	if err != nil {
  83  		return errutils.NewHTTPDoError(req, err)
  84  	}
  85  
  86  	defer func() { _ = resp.Body.Close() }()
  87  
  88  	if resp.StatusCode/100 != 2 {
  89  		return parseError(req, resp)
  90  	}
  91  
  92  	if result == nil {
  93  		return nil
  94  	}
  95  
  96  	raw, err := io.ReadAll(resp.Body)
  97  	if err != nil {
  98  		return errutils.NewReadResponseError(req, resp.StatusCode, err)
  99  	}
 100  
 101  	err = json.Unmarshal(raw, result)
 102  	if err != nil {
 103  		return errutils.NewUnmarshalError(req, resp.StatusCode, raw, err)
 104  	}
 105  
 106  	return nil
 107  }
 108  
 109  func newJSONRequest(ctx context.Context, method string, endpoint *url.URL, payload any) (*http.Request, error) {
 110  	buf := new(bytes.Buffer)
 111  
 112  	if payload != nil {
 113  		err := json.NewEncoder(buf).Encode(payload)
 114  		if err != nil {
 115  			return nil, fmt.Errorf("failed to create request JSON body: %w", err)
 116  		}
 117  	}
 118  
 119  	req, err := http.NewRequestWithContext(ctx, method, endpoint.String(), buf)
 120  	if err != nil {
 121  		return nil, fmt.Errorf("unable to create request: %w", err)
 122  	}
 123  
 124  	req.Header.Set("Accept", "application/json")
 125  
 126  	if payload != nil {
 127  		req.Header.Set("Content-Type", "application/json")
 128  	}
 129  
 130  	return req, nil
 131  }
 132  
 133  func parseError(req *http.Request, resp *http.Response) error {
 134  	raw, _ := io.ReadAll(resp.Body)
 135  
 136  	var errAPI APIError
 137  
 138  	err := json.Unmarshal(raw, &errAPI)
 139  	if err != nil {
 140  		return errutils.NewUnexpectedStatusCodeError(req, resp.StatusCode, raw)
 141  	}
 142  
 143  	return &errAPI
 144  }
 145