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fix: Avoid use of r.Context() after r.Hijack() #1978

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Merged
merged 6 commits into from
Jun 3, 2022
Merged

fix: Avoid use of r.Context() after r.Hijack() #1978

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877959b
fix: Fix goroutine leak by propagating websocket closure
mafredri Jun 2, 2022
0a354b6
fix: Use of r.Context() in workspaceAgentDial
mafredri Jun 2, 2022
e0fb30c
fix: Use of rw and r.Context() in workspaceAgentListen
mafredri Jun 2, 2022
e90a0c0
fix: Use of r.Context() in workspaceAgentPTY
mafredri Jun 2, 2022
e0a2f8e
chore: Fix PR comments
mafredri Jun 2, 2022
9e6727e
fix: wsNetConn cancel on any error
mafredri Jun 2, 2022
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fix: Use of rw and r.Context() in workspaceAgentListen
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@mafredri
mafredri committed Jun 3, 2022
commit e0fb30ca0ee1ea5b9f076ac736a41636734c02d2
11 changes: 5 additions & 6 deletions coderd/workspaceagents.go
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Original file line number Diff line number Diff line change
Expand Up @@ -197,13 +197,12 @@ func (api *API) workspaceAgentListen(rw http.ResponseWriter, r *http.Request) {
return
}

defer func() {
_ = conn.Close(websocket.StatusNormalClosure, "")
}()
ctx, wsNetConn := websocketNetConn(r.Context(), conn, websocket.MessageBinary)
defer wsNetConn.Close() // Also closes conn.

config := yamux.DefaultConfig()
config.LogOutput = io.Discard
session, err := yamux.Server(websocket.NetConn(r.Context(), conn, websocket.MessageBinary), config)
session, err := yamux.Server(wsNetConn, config)
if err != nil {
_ = conn.Close(websocket.StatusAbnormalClosure, err.Error())
return
Expand Down Expand Up @@ -233,7 +232,7 @@ func (api *API) workspaceAgentListen(rw http.ResponseWriter, r *http.Request) {
}
disconnectedAt := workspaceAgent.DisconnectedAt
updateConnectionTimes := func() error {
err = api.Database.UpdateWorkspaceAgentConnectionByID(r.Context(), database.UpdateWorkspaceAgentConnectionByIDParams{
err = api.Database.UpdateWorkspaceAgentConnectionByID(ctx, database.UpdateWorkspaceAgentConnectionByIDParams{
ID: workspaceAgent.ID,
FirstConnectedAt: firstConnectedAt,
LastConnectedAt: lastConnectedAt,
Expand All @@ -259,7 +258,7 @@ func (api *API) workspaceAgentListen(rw http.ResponseWriter, r *http.Request) {
return
}

api.Logger.Info(r.Context(), "accepting agent", slog.F("resource", resource), slog.F("agent", workspaceAgent))
api.Logger.Info(ctx, "accepting agent", slog.F("resource", resource), slog.F("agent", workspaceAgent))

ticker := time.NewTicker(api.AgentConnectionUpdateFrequency)
defer ticker.Stop()
Expand Down