mirror of
https://github.com/go-acme/lego.git
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187 lines
4.3 KiB
Go
187 lines
4.3 KiB
Go
package internal
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"net/url"
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"github.com/go-acme/lego/v4/challenge/dns01"
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"github.com/go-acme/lego/v4/providers/dns/internal/errutils"
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"golang.org/x/net/publicsuffix"
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)
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const defaultBaseURL = "https://gateway.stackpath.com/dns/v1/stacks/"
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// Client the API client for Stackpath.
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type Client struct {
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stackID string
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baseURL *url.URL
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httpClient *http.Client
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}
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// NewClient creates a new Client.
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func NewClient(ctx context.Context, stackID, clientID, clientSecret string) *Client {
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baseURL, _ := url.Parse(defaultBaseURL)
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return &Client{
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baseURL: baseURL,
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stackID: stackID,
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httpClient: createOAuthClient(ctx, clientID, clientSecret),
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}
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}
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// GetZones gets all zones.
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// https://stackpath.dev/reference/getzones
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func (c *Client) GetZones(ctx context.Context, domain string) (*Zone, error) {
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endpoint := c.baseURL.JoinPath(c.stackID, "zones")
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req, err := newJSONRequest(ctx, http.MethodGet, endpoint, nil)
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if err != nil {
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return nil, err
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}
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tld, err := publicsuffix.EffectiveTLDPlusOne(dns01.UnFqdn(domain))
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if err != nil {
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return nil, err
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}
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query := req.URL.Query()
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query.Add("page_request.filter", fmt.Sprintf("domain='%s'", tld))
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req.URL.RawQuery = query.Encode()
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var zones Zones
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err = c.do(req, &zones)
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if err != nil {
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return nil, err
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}
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if len(zones.Zones) == 0 {
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return nil, fmt.Errorf("did not find zone with domain %s", domain)
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}
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return &zones.Zones[0], nil
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}
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// GetZoneRecords gets all records.
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// https://stackpath.dev/reference/getzonerecords
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func (c *Client) GetZoneRecords(ctx context.Context, name string, zone *Zone) ([]Record, error) {
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endpoint := c.baseURL.JoinPath(c.stackID, "zones", zone.ID, "records")
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req, err := newJSONRequest(ctx, http.MethodGet, endpoint, nil)
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if err != nil {
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return nil, err
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}
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query := req.URL.Query()
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query.Add("page_request.filter", fmt.Sprintf("name='%s' and type='TXT'", name))
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req.URL.RawQuery = query.Encode()
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var records Records
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err = c.do(req, &records)
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if err != nil {
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return nil, err
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}
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if len(records.Records) == 0 {
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return nil, fmt.Errorf("did not find record with name %s", name)
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}
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return records.Records, nil
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}
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// CreateZoneRecord creates a record.
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// https://stackpath.dev/reference/createzonerecord
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func (c *Client) CreateZoneRecord(ctx context.Context, zone *Zone, record Record) error {
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endpoint := c.baseURL.JoinPath(c.stackID, "zones", zone.ID, "records")
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req, err := newJSONRequest(ctx, http.MethodPost, endpoint, record)
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if err != nil {
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return err
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}
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return c.do(req, nil)
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}
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// DeleteZoneRecord deletes a record.
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// https://stackpath.dev/reference/deletezonerecord
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func (c *Client) DeleteZoneRecord(ctx context.Context, zone *Zone, record Record) error {
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endpoint := c.baseURL.JoinPath(c.stackID, "zones", zone.ID, "records", record.ID)
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req, err := newJSONRequest(ctx, http.MethodDelete, endpoint, nil)
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if err != nil {
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return err
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}
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return c.do(req, nil)
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}
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func newJSONRequest(ctx context.Context, method string, endpoint *url.URL, payload any) (*http.Request, error) {
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buf := new(bytes.Buffer)
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if payload != nil {
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err := json.NewEncoder(buf).Encode(payload)
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if err != nil {
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return nil, fmt.Errorf("failed to create request JSON body: %w", err)
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}
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}
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req, err := http.NewRequestWithContext(ctx, method, endpoint.String(), buf)
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if err != nil {
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return nil, fmt.Errorf("unable to create request: %w", err)
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}
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req.Header.Set("Accept", "application/json")
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if payload != nil {
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req.Header.Set("Content-Type", "application/json")
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}
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return req, nil
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}
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func (c *Client) do(req *http.Request, result any) error {
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resp, err := c.httpClient.Do(req)
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if err != nil {
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return errutils.NewHTTPDoError(req, err)
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}
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defer func() { _ = resp.Body.Close() }()
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if resp.StatusCode/100 != 2 {
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return parseError(req, resp)
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}
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if result == nil {
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return nil
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}
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raw, err := io.ReadAll(resp.Body)
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if err != nil {
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return errutils.NewReadResponseError(req, resp.StatusCode, err)
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}
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err = json.Unmarshal(raw, result)
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if err != nil {
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return errutils.NewUnmarshalError(req, resp.StatusCode, raw, err)
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}
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return nil
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}
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func parseError(req *http.Request, resp *http.Response) error {
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raw, _ := io.ReadAll(resp.Body)
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errResp := &ErrorResponse{}
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err := json.Unmarshal(raw, errResp)
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if err != nil {
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return errutils.NewUnexpectedStatusCodeError(req, resp.StatusCode, raw)
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}
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return errResp
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}
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