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client.go
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/
client.go
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package internal
import (
"bytes"
"context"
"encoding/json"
"fmt"
"io"
"net/http"
"net/url"
"time"
"github.com/entrustcorporation/dv/providers/internal/errutils"
)
// defaultBaseURL is the GleSYS API endpoint used by Present and CleanUp.
const defaultBaseURL = "https://api.glesys.com/"
type Client struct {
apiUser string
apiKey string
baseURL *url.URL
HTTPClient *http.Client
}
func NewClient(apiUser string, apiKey string) *Client {
baseURL, _ := url.Parse(defaultBaseURL)
return &Client{
apiUser: apiUser,
apiKey: apiKey,
baseURL: baseURL,
HTTPClient: &http.Client{Timeout: 5 * time.Second},
}
}
// AddTXTRecord adds a dns record to a domain.
// https://github.com/GleSYS/API/wiki/API-Documentation#domainaddrecord
func (c *Client) AddTXTRecord(ctx context.Context, domain, name, value string, ttl int) (int, error) {
endpoint := c.baseURL.JoinPath("domain", "addrecord")
request := addRecordRequest{
DomainName: domain,
Host: name,
Type: "TXT",
Data: value,
TTL: ttl,
}
req, err := newJSONRequest(ctx, http.MethodPost, endpoint, request)
if err != nil {
return 0, err
}
response, err := c.do(req)
if err != nil {
return 0, err
}
if response != nil && response.Response.Status.Code == http.StatusOK {
return response.Response.Record.RecordID, nil
}
return 0, err
}
// DeleteTXTRecord removes a dns record from a domain.
// https://github.com/GleSYS/API/wiki/API-Documentation#domaindeleterecord
func (c *Client) DeleteTXTRecord(ctx context.Context, recordID int) error {
endpoint := c.baseURL.JoinPath("domain", "deleterecord")
request := deleteRecordRequest{RecordID: recordID}
req, err := newJSONRequest(ctx, http.MethodPost, endpoint, request)
if err != nil {
return err
}
_, err = c.do(req)
return err
}
func (c *Client) do(req *http.Request) (*apiResponse, error) {
req.SetBasicAuth(c.apiUser, c.apiKey)
resp, err := c.HTTPClient.Do(req)
if err != nil {
return nil, errutils.NewHTTPDoError(req, err)
}
defer func() { _ = resp.Body.Close() }()
if resp.StatusCode/100 != 2 {
return nil, errutils.NewUnexpectedResponseStatusCodeError(req, resp)
}
raw, err := io.ReadAll(resp.Body)
if err != nil {
return nil, errutils.NewReadResponseError(req, resp.StatusCode, err)
}
var response apiResponse
err = json.Unmarshal(raw, &response)
if err != nil {
return nil, errutils.NewUnmarshalError(req, resp.StatusCode, raw, err)
}
return &response, nil
}
func newJSONRequest(ctx context.Context, method string, endpoint *url.URL, payload any) (*http.Request, error) {
buf := new(bytes.Buffer)
if payload != nil {
err := json.NewEncoder(buf).Encode(payload)
if err != nil {
return nil, fmt.Errorf("failed to create request JSON body: %w", err)
}
}
req, err := http.NewRequestWithContext(ctx, method, endpoint.String(), buf)
if err != nil {
return nil, fmt.Errorf("unable to create request: %w", err)
}
req.Header.Set("Accept", "application/json")
if payload != nil {
req.Header.Set("Content-Type", "application/json")
}
return req, nil
}