forked from
willdot.net/cocoon
A fork of the Cocoon PDS but being made more distributed.
detect websocket disconnects
author
Hailey
date
(Jan 4, 2026, 1:53 PM -0800)
commit
a279b3fa
a279b3fae4d7782e6dce5da868357eb020becbcc
parent
3a1ebdc3
3a1ebdc36d372170de98ea5f9c9252ce6d1df184
+22
-8
+22
-8
server/handle_sync_subscribe_repos.go
+22
-8
server/handle_sync_subscribe_repos.go
···
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)
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func (s *Server) handleSyncSubscribeRepos(e echo.Context) error {
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-
ctx := e.Request().Context()
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+
ctx, cancel := context.WithCancel(e.Request().Context())
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defer cancel()
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+
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logger := s.logger.With("component", "subscribe-repos-websocket")
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conn, err := websocket.Upgrade(e.Response().Writer, e.Request(), e.Response().Header(), 1<<10, 1<<10)
···
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metrics.RelaysConnected.WithLabelValues(ident).Dec()
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}()
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-
evts, cancel, err := s.evtman.Subscribe(ctx, ident, func(evt *events.XRPCStreamEvent) bool {
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evts, evtManCancel, err := s.evtman.Subscribe(ctx, ident, func(evt *events.XRPCStreamEvent) bool {
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return true
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}, nil)
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if err != nil {
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return err
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}
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defer cancel()
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defer evtManCancel()
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+
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// drop the connection whenever a subscriber disconnects from the socket, we should get errors
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go func() {
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for {
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if _, _, err := conn.ReadMessage(); err != nil {
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logger.Warn("websocket error", "err", err)
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cancel()
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}
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}
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}()
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header := events.EventHeader{Op: events.EvtKindMessage}
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for evt := range evts {
···
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// we should tell the relay to request a new crawl at this point if we got disconnected
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// use a new context since the old one might be cancelled at this point
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ctx, cancel = context.WithTimeout(context.Background(), 10*time.Second)
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defer cancel()
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if err := s.requestCrawl(ctx); err != nil {
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logger.Error("error requesting crawls", "err", err)
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}
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go func() {
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retryCtx, retryCancel := context.WithTimeout(context.Background(), 10*time.Second)
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defer retryCancel()
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if err := s.requestCrawl(retryCtx); err != nil {
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logger.Error("error requesting crawls", "err", err)
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}
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}()
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return nil
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}