55 lines
1.8 KiB
Go
55 lines
1.8 KiB
Go
package email
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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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"io"
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"net/http"
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"strconv"
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"time"
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"git.sendico.io/tech/sxchnge/notifications/model"
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)
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func (c *client) post(ctx context.Context, key string, payload any) Outcome {
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body, err := json.Marshal(payload)
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if err != nil {
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return Outcome{State: model.Failed, Code: "invalid_payload"}
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}
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req, err := http.NewRequestWithContext(ctx, http.MethodPost, c.endpoint, bytes.NewReader(body))
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if err != nil {
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return Outcome{State: model.Failed, Code: "invalid_provider_config"}
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}
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req.Header.Set("Authorization", "Bearer "+c.key)
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req.Header.Set("Content-Type", "application/json")
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if key != "" {
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req.Header.Set("Idempotency-Key", key)
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}
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resp, err := c.http.Do(req)
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if err != nil {
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return Outcome{State: model.Unknown, Code: "provider_outcome_unknown"}
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}
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defer resp.Body.Close()
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// Discard a bounded response without logging provider-controlled content.
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_, _ = io.Copy(io.Discard, io.LimitReader(resp.Body, 64<<10))
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switch {
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case resp.StatusCode >= 200 && resp.StatusCode < 300:
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return Outcome{State: model.Accepted}
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case resp.StatusCode == 429:
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delay := time.Minute
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if n, e := strconv.Atoi(resp.Header.Get("Retry-After")); e == nil && n > 0 && n <= 86400 {
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delay = time.Duration(n) * time.Second
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} else if date, e := http.ParseTime(resp.Header.Get("Retry-After")); e == nil && time.Until(date) > 0 {
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delay = time.Until(date)
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}
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return Outcome{State: model.RetryWait, Code: "provider_rate_limited", RetryAfter: delay}
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case resp.StatusCode >= 500 || resp.StatusCode == 408:
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return Outcome{State: model.Unknown, Code: "provider_outcome_unknown"}
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case resp.StatusCode == 401 || resp.StatusCode == 403:
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return Outcome{State: model.Failed, Code: "provider_authentication_failed"}
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default:
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return Outcome{State: model.Failed, Code: "provider_rejected"}
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}
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}
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