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lego/providers/dns/wedos/internal/client.go
2023-05-05 09:49:38 +02:00

182 lines
4.3 KiB
Go

package internal
import (
"context"
"encoding/json"
"fmt"
"io"
"net/http"
"net/url"
"strings"
"time"
"github.com/go-acme/lego/v4/challenge/dns01"
"github.com/go-acme/lego/v4/providers/dns/internal/errutils"
)
const baseURL = "https://api.wedos.com/wapi/json"
// Client the API client for Webos.
type Client struct {
username string
password string
baseURL string
HTTPClient *http.Client
}
// NewClient creates a new Client.
func NewClient(username string, password string) *Client {
return &Client{
username: username,
password: password,
baseURL: baseURL,
HTTPClient: &http.Client{Timeout: 10 * time.Second},
}
}
// GetRecords lists all the records in the zone.
// https://kb.wedos.com/en/wapi-api-interface/wapi-command-dns-rows-list/
func (c *Client) GetRecords(ctx context.Context, zone string) ([]DNSRow, error) {
payload := map[string]any{
"domain": dns01.UnFqdn(zone),
}
req, err := c.newRequest(ctx, commandDNSRowsList, payload)
if err != nil {
return nil, err
}
result := APIResponse[Rows]{}
err = c.do(req, &result)
if err != nil {
return nil, err
}
return result.Response.Data.Rows, err
}
// AddRecord adds a record in the zone, either by updating existing records or creating new ones.
// https://kb.wedos.com/en/wapi-api-interface/wapi-command-dns-add-row/
// https://kb.wedos.com/en/wapi-api-interface/wapi-command-dns-row-update/
func (c *Client) AddRecord(ctx context.Context, zone string, record DNSRow) error {
payload := DNSRowRequest{
Domain: dns01.UnFqdn(zone),
TTL: record.TTL,
Type: record.Type,
Data: record.Data,
}
cmd := commandDNSRowAdd
if record.ID == "" {
payload.Name = record.Name
} else {
cmd = commandDNSRowUpdate
payload.ID = record.ID
}
req, err := c.newRequest(ctx, cmd, payload)
if err != nil {
return err
}
return c.do(req, &APIResponse[json.RawMessage]{})
}
// DeleteRecord deletes a record from the zone.
// If a record does not have an ID, it will be looked up.
// https://kb.wedos.com/en/wapi-api-interface/wapi-command-dns-row-delete/
func (c *Client) DeleteRecord(ctx context.Context, zone string, recordID string) error {
payload := DNSRowRequest{
Domain: dns01.UnFqdn(zone),
ID: recordID,
}
req, err := c.newRequest(ctx, commandDNSRowDelete, payload)
if err != nil {
return err
}
return c.do(req, &APIResponse[json.RawMessage]{})
}
// Commit not really required, all changes will be auto-committed after 5 minutes.
// https://kb.wedos.com/en/wapi-api-interface/wapi-command-dns-domain-commit/
func (c *Client) Commit(ctx context.Context, zone string) error {
payload := map[string]any{
"name": dns01.UnFqdn(zone),
}
req, err := c.newRequest(ctx, commandDNSDomainCommit, payload)
if err != nil {
return err
}
return c.do(req, &APIResponse[json.RawMessage]{})
}
func (c *Client) Ping(ctx context.Context) error {
req, err := c.newRequest(ctx, commandPing, nil)
if err != nil {
return err
}
return c.do(req, &APIResponse[json.RawMessage]{})
}
func (c *Client) do(req *http.Request, result Response) error {
resp, err := c.HTTPClient.Do(req)
if err != nil {
return errutils.NewHTTPDoError(req, err)
}
raw, err := io.ReadAll(resp.Body)
if err != nil {
return errutils.NewReadResponseError(req, resp.StatusCode, err)
}
if resp.StatusCode/100 != 2 {
return errutils.NewUnexpectedStatusCodeError(req, resp.StatusCode, raw)
}
err = json.Unmarshal(raw, result)
if err != nil {
return errutils.NewUnmarshalError(req, resp.StatusCode, raw, err)
}
if result.GetCode() != codeOk {
return fmt.Errorf("error %d: %s", result.GetCode(), result.GetResult())
}
return err
}
func (c *Client) newRequest(ctx context.Context, command string, payload any) (*http.Request, error) {
requestObject := map[string]any{
"request": APIRequest{
User: c.username,
Auth: authToken(c.username, c.password),
Command: command,
Data: payload,
},
}
object, err := json.Marshal(requestObject)
if err != nil {
return nil, fmt.Errorf("failed to create request JSON body: %w", err)
}
form := url.Values{}
form.Add("request", string(object))
req, err := http.NewRequestWithContext(ctx, http.MethodPost, c.baseURL, strings.NewReader(form.Encode()))
if err != nil {
return nil, fmt.Errorf("unable to create request: %w", err)
}
req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
return req, nil
}