50 lines
1.3 KiB
Go
50 lines
1.3 KiB
Go
package notify
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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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"errors"
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"fmt"
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"net/http"
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)
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// Telegram delivers notifications via the Telegram Bot API sendMessage
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// endpoint. Config is {"chat_id": "..."}; secret is the bot token and is
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// never logged.
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type Telegram struct {
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BaseURL string
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HTTP *http.Client
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}
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func (t *Telegram) Send(ctx context.Context, cfg json.RawMessage, secret string, ev Event) error {
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var c struct {
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ChatID string `json:"chat_id"`
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}
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if err := json.Unmarshal(cfg, &c); err != nil {
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return err
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}
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body, _ := json.Marshal(map[string]string{
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"chat_id": c.ChatID,
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"text": fmt.Sprintf("[%s] %s → %s\n%s", ev.Project, ev.Domain, ev.Status, ev.Summary),
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})
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url := t.BaseURL + "/bot" + secret + "/sendMessage"
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req, err := http.NewRequestWithContext(ctx, http.MethodPost, url, bytes.NewReader(body))
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if err != nil {
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return err
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}
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req.Header.Set("Content-Type", "application/json")
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resp, err := t.HTTP.Do(req)
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if err != nil {
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// Do NOT wrap/return err as-is: *url.Error.Error() embeds the full
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// request URL, which contains the bot token (/bot<secret>/...). A
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// caller logging this error would leak the secret.
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return errors.New("telegram: request failed")
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}
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defer resp.Body.Close()
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if resp.StatusCode >= 300 {
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return fmt.Errorf("telegram: status %d", resp.StatusCode)
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}
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return nil
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}
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