dimitar
55789ab7d7
Implement the webhook dispatch subsystem so watch sessions can relay scan
results to external services when repositories change.
Webhook package (internal/webhook):
- Sender interface (Name + Send(ctx, Payload)) with three concrete
implementations:
- SlackSender: Block Kit message (header + mrkdwn section with summary
and change list + context footer), emoji status markers
- DiscordSender: single rich embed with color-coded sidebar (green=
clean, yellow=attention, red=errors) and markdown description
- GenericSender: raw JSON POST of the Payload struct, with custom
headers from config
- Config struct per destination: type, URL, send_all, on_change_only,
min_priority, rate_limit, timeout, custom headers, retry (max_attempts
+ backoff); TimeoutOrDefault helper
- NewSender factory switches on type; unknown types rejected
- Dispatcher: NewDispatcher builds a senderHandle per config (sender +
rate-limit state + its own http.Client with per-config timeout);
Dispatch() fans out with per-sender guards: on_change_only skips when
changedCount==0, rate_limit skips when too soon (lastSent check)
- senderHandle.sendWithRetry: retries with exponential backoff on
transient errors (5xx/timeout); 4xx errors fail immediately;
isRetryable helper
HTTP client (internal/httpclient):
- PostJSON now skips json.Unmarshal when out==nil, matching the common
webhook pattern where the response body is irrelevant
Testing:
- All three sender types round-trip through httptest (request payload
decoded and asserted)
- Discord embed colour: yellow for attention, red for errors
- Generic sender payload integrity check
- Dispatcher: OnChangeOnly guard skips when changedCount==0; multiple
senders all fire; HTTP errors surfaced (500)
- Retry: 504 Gateway Timeout retried 3× before succeeding via the
dispatcher's sendWithRetry
- NewSender rejects unknown types, requires a name for identification
Verified: go build, go vet, go test -race (13 packages), gofmt clean.
24 lines
595 B
Go
24 lines
595 B
Go
package webhook
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import (
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"context"
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"gitea.oblak.solutions/dimitar/gitFlow/internal/httpclient"
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)
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// GenericSender posts the Payload as JSON to a user-defined URL.
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type GenericSender struct {
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cfg Config
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http *httpclient.Client
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}
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func newGeneric(cfg Config) *GenericSender {
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return &GenericSender{cfg: cfg, http: httpclient.New(httpclient.WithTimeout(cfg.TimeoutOrDefault()))}
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}
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func (s *GenericSender) Name() string { return s.cfg.Name }
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func (s *GenericSender) Send(ctx context.Context, payload Payload) error {
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return s.http.PostJSON(ctx, s.cfg.URL, s.cfg.Headers, payload, nil)
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}
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