115 lines
2.5 KiB
Go
115 lines
2.5 KiB
Go
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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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"strings"
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"time"
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"github.com/go-acme/lego/v4/providers/dns/internal/errutils"
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"github.com/miekg/dns"
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)
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const defaultBaseURL = "https://my.rcodezero.at/api"
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const authorizationHeader = "Authorization"
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// Client for the RcodeZero API.
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type Client struct {
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apiToken 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(apiToken string) *Client {
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baseURL, _ := url.Parse(defaultBaseURL)
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return &Client{
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apiToken: apiToken,
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baseURL: baseURL,
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HTTPClient: &http.Client{Timeout: 5 * time.Second},
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}
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}
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func (c *Client) UpdateRecords(ctx context.Context, authZone string, sets []UpdateRRSet) (*APIResponse, error) {
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endpoint := c.baseURL.JoinPath("v1", "acme", "zones", strings.TrimSuffix(dns.Fqdn(authZone), "."), "rrsets")
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req, err := newJSONRequest(ctx, http.MethodPatch, endpoint, sets)
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if err != nil {
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return nil, err
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}
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return c.do(req)
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}
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func (c *Client) do(req *http.Request) (*APIResponse, error) {
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req.Header.Set(authorizationHeader, "Bearer "+c.apiToken)
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resp, err := c.HTTPClient.Do(req)
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if err != nil {
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return nil, 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 nil, parseError(req, resp)
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}
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result := &APIResponse{}
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raw, err := io.ReadAll(resp.Body)
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if err != nil {
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return nil, 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 nil, errutils.NewUnmarshalError(req, resp.StatusCode, raw, err)
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}
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return result, 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 parseError(req *http.Request, resp *http.Response) error {
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raw, _ := io.ReadAll(resp.Body)
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errAPI := &APIResponse{}
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err := json.Unmarshal(raw, errAPI)
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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 fmt.Errorf("[status code: %d] %w", resp.StatusCode, errAPI)
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}
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