162 lines
3.6 KiB
Go
162 lines
3.6 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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"time"
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"github.com/go-acme/lego/v4/providers/dns/internal/errutils"
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)
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const defaultBaseURL = "https://api.variomedia.de"
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const authorizationHeader = "Authorization"
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// Client the API client for Variomedia.
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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: 10 * time.Second},
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}
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}
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// CreateDNSRecord creates a new DNS entry.
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// https://api.variomedia.de/docs/dns-records.html#erstellen
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func (c Client) CreateDNSRecord(ctx context.Context, record DNSRecord) (*CreateDNSRecordResponse, error) {
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endpoint := c.baseURL.JoinPath("dns-records")
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data := CreateDNSRecordRequest{Data: Data{
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Type: "dns-record",
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Attributes: record,
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}}
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req, err := newJSONRequest(ctx, http.MethodPost, endpoint, data)
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if err != nil {
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return nil, err
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}
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var result CreateDNSRecordResponse
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err = c.do(req, &result)
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if err != nil {
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return nil, err
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}
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return &result, nil
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}
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// DeleteDNSRecord deletes a DNS record.
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// https://api.variomedia.de/docs/dns-records.html#l%C3%B6schen
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func (c Client) DeleteDNSRecord(ctx context.Context, id string) (*DeleteRecordResponse, error) {
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endpoint := c.baseURL.JoinPath("dns-records", 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 nil, err
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}
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var result DeleteRecordResponse
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err = c.do(req, &result)
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if err != nil {
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return nil, err
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}
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return &result, nil
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}
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// GetJob returns a single job based on its ID.
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// https://api.variomedia.de/docs/job-queue.html
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func (c Client) GetJob(ctx context.Context, id string) (*GetJobResponse, error) {
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endpoint := c.baseURL.JoinPath("queue-jobs", id)
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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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var result GetJobResponse
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err = c.do(req, &result)
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if err != nil {
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return nil, err
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}
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return &result, nil
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}
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func (c Client) do(req *http.Request, data any) error {
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req.Header.Set(authorizationHeader, "token "+c.apiToken)
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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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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, data)
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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 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/vnd.variomedia.v1+json")
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if payload != nil {
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req.Header.Set("Content-Type", "application/vnd.api+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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var errAPI APIError
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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 errAPI
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}
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