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feat(integrations/lark): align WS to official binary Frame protocol + DispatchResult outbound replies (MUL-2671)
Two must-fix items from Elon's review of PR #3277: 1. WS protocol layer rewritten to match the official Lark Go SDK (`larksuite/oapi-sdk-go/v3/ws`): - Bootstrap is `POST /callback/ws/endpoint` with AppID/AppSecret in the body (no tenant_access_token bearer). Response carries wss URL + ClientConfig (PingInterval / ReconnectInterval / ReconnectNonce / ReconnectCount). - `service_id` is parsed from the wss URL query and used as Frame.Service on every outbound frame. - Wire envelope is the binary protobuf `pbbp2.Frame` (hand-rolled via protowire to avoid pulling the whole SDK in, byte-identical field tags). JSON payloads are nested inside Frame.Payload. - Inbound data frames are ACKed with a `Response{code:200,...}` JSON payload that reuses the inbound headers; infra failures produce code=500 so Lark retries. - Ping is the app-layer binary `NewPingFrame(serviceID)` at the server-supplied cadence; WebSocket protocol PING is removed (Lark ignores it). Server-initiated pings get a pong reply. - ctx-cancel-breaks-read invariant preserved via the watchdog goroutine that closes the conn on ctx.Done; the read loop and ping goroutine serialize their writes through a single mutex. 2. `DispatchResult` outbound replies wired via a new `OutcomeReplier`: - `OutcomeNeedsBinding` mints a one-shot binding token and sends the binding prompt card to the sender's open_id. - `OutcomeAgentOffline` / `OutcomeAgentArchived` push a notice card into the chat with the agent name + Chinese copy matching §4.6. - `OutcomeIngested` stays owned by the Patcher; `OutcomeDropped` is silent. - The replier is best-effort: outbound failures are logged and swallowed so a Lark outage cannot stall the inbound pipeline. - Hub installs the noop replier by default; router wires the production `LarkOutcomeReplier` when APIClient.IsConfigured(). PersonalAgent long-conn risk surfaced (open per Feishu docs: `长连接模式仅支持企业自建应用`). The implementation works for any app archetype; the open question is whether `/callback/ws/endpoint` accepts PersonalAgent credentials in practice. Surfacing the Lark code+msg verbatim from the bootstrap response so an operator running the smoke test sees the exact failure rather than a generic timeout. Co-authored-by: multica-agent <[email protected]>
This commit is contained in:
J
+34
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@@ -254,6 +254,25 @@ func NewRouterWithOptions(pool *pgxpool.Pool, hub *realtime.Hub, bus *events.Bus
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// piggybacks on its tenant_access_token cache.
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connectorFactory, connectorLabel := buildLarkConnectorFactory(larkClient, installSvc)
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h.LarkHub = lark.NewHub(queries, connectorFactory, dispatcher, lark.HubConfig{})
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// OutcomeReplier wires the outbound side of the
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// EventEmitter contract: NeedsBinding / AgentOffline /
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// AgentArchived translate to a Lark-side reply card.
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// Requires the real APIClient (the stub returns
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// ErrAPIClientNotConfigured on every send) and the
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// binding token service. When either is missing, the
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// Hub falls back to the noop replier and the outcomes
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// get logged but not delivered — clearly visible in
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// boot output so operators understand the gap.
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replier := lark.NewLarkOutcomeReplier(lark.OutcomeReplierConfig{
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APIClient: larkClient,
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BindingSvc: h.LarkBindingTokens,
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Credentials: installSvc,
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Queries: queries,
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PublicURL: signupConfig.PublicURL,
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Logger: slog.Default(),
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})
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h.LarkHub.SetOutcomeReplier(replier)
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slog.Info("lark inbound pipeline wired", "connector", connectorLabel)
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// Device-flow registration service: end-to-end install
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@@ -861,28 +880,27 @@ func NewRouterWithOptions(pool *pgxpool.Pool, hub *realtime.Hub, bus *events.Bus
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// buildLarkConnectorFactory picks between the staging-mode
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// NoopConnector and the real WS long-conn connector based on
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// MULTICA_LARK_WS_ENABLED. The real connector requires an HTTP
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// APIClient that can mint a tenant_access_token; the stub cannot, so we
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// fall back to noop with a warning if the operator enables the WS flag
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// without also enabling MULTICA_LARK_HTTP_ENABLED. Returns the factory
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// the Hub will use plus a short label for the boot log so operators
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// can see at a glance which mode they are in.
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// MULTICA_LARK_WS_ENABLED. The real connector talks to
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// /callback/ws/endpoint directly with app_id/app_secret (no
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// tenant_access_token bearer needed for the bootstrap), so it can
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// run independently of MULTICA_LARK_HTTP_ENABLED — but outbound
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// reply cards (binding prompt, offline / archived notices) require
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// the HTTP APIClient. We still recommend enabling both together;
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// when only WS is on, the OutcomeReplier surfaces a warning and
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// downgrades to silent drops.
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//
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// Returns the factory plus a short label for the boot log so
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// operators can see at a glance which mode they are in.
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func buildLarkConnectorFactory(client lark.APIClient, installSvc *lark.InstallationService) (lark.ConnectorFactory, string) {
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if !strings.EqualFold(strings.TrimSpace(os.Getenv("MULTICA_LARK_WS_ENABLED")), "true") {
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return lark.NoopConnectorFactory(slog.Default()), "noop"
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}
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tokenSource, err := lark.NewHTTPAPIClientTokenSource(client)
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if err != nil {
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slog.Warn("lark ws: MULTICA_LARK_WS_ENABLED requires MULTICA_LARK_HTTP_ENABLED; falling back to noop", "error", err)
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return lark.NoopConnectorFactory(slog.Default()), "noop"
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}
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endpointFetcher, err := lark.NewHTTPConnectionTokenFetcher(lark.HTTPConnectionTokenConfig{
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BaseURL: strings.TrimSpace(os.Getenv("MULTICA_LARK_HTTP_BASE_URL")),
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TokenSource: tokenSource,
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Logger: slog.Default(),
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BaseURL: strings.TrimSpace(os.Getenv("MULTICA_LARK_CALLBACK_BASE_URL")),
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Logger: slog.Default(),
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})
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if err != nil {
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slog.Error("lark ws: connection_token fetcher init failed; falling back to noop", "error", err)
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slog.Error("lark ws: endpoint fetcher init failed; falling back to noop", "error", err)
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return lark.NoopConnectorFactory(slog.Default()), "noop"
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}
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decoder := lark.NewLarkJSONFrameDecoder()
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@@ -912,6 +930,7 @@ func buildLarkConnectorFactory(client lark.APIClient, installSvc *lark.Installat
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slog.Error("lark ws: connector init failed; falling back to noop", "error", err)
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return lark.NoopConnectorFactory(slog.Default()), "noop"
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}
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_ = client // outbound APIClient flows in through OutcomeReplier wiring on the Hub
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return func(_ db.LarkInstallation) (lark.EventConnector, error) {
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return conn, nil
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}, "ws-long-conn"
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@@ -15,18 +15,27 @@
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// for offline / archived; emit returns DispatchResult + error so
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// the connector can post the matching Lark-side reply card)
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// 6. AuditLogger (lark_inbound_audit; deliberately no body column)
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// 7. APIClient interface + stub (transport surface for outbound;
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// real Lark wire-protocol implementation lands in a follow-up
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// behind this same interface)
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// 7. APIClient interface + http_client.go (real Lark Open Platform
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// transport for IM v1 send/patch + binding prompt + bot info;
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// stubAPIClient refuses calls when no production client is wired)
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// 8. Hub (WS lease + per-installation supervisor goroutines with
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// exponential backoff + jitter; renewer cancels the connector's
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// run ctx on lease loss to keep §4.4 ownership safe across
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// replicas; EventConnector interface is the seam for the real
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// wire protocol)
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// 9. Patcher (subscribes to task / chat-done events; keeps the
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// 9. WSLongConnConnector (real long-conn over gorilla/websocket; the
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// wire protocol is the binary Frame envelope from the official Go
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// SDK — bootstrap via POST /callback/ws/endpoint, app-layer
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// ping/pong, ACK responses on every data frame, ctx cancel breaks
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// blocking ReadMessage via a watchdog goroutine for §4.4)
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// 10. Patcher (subscribes to task / chat-done events; keeps the
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// per-task Lark interactive card in sync; throttled patches +
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// final/error bypass)
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// 10. RegistrationService (RFC 8628 device-flow scan-to-install: opens
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// 11. OutcomeReplier (outbound side of the EventEmitter contract:
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// NeedsBinding mints a token + sends the binding prompt;
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// AgentOffline / AgentArchived push status notice cards into the
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// chat; Ingested is owned by the Patcher; Dropped is silent)
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// 12. RegistrationService (RFC 8628 device-flow scan-to-install: opens
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// a session against accounts.feishu.cn, polls in the background,
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// and on success writes through InstallationService + auto-binds
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// the installer via InstallerBinder so §2.1 "scan to bind, you're
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@@ -189,6 +189,7 @@ type Hub struct {
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queries HubQueries
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factory ConnectorFactory
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dispatcher *Dispatcher
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replier OutcomeReplier
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cfg HubConfig
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// nodeID is the per-process lease ownership token. The CAS
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@@ -206,13 +207,19 @@ type Hub struct {
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// NewHub constructs a Hub bound to the supplied queries, connector
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// factory and dispatcher. The Hub does not start any goroutines until
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// Run is called.
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// Run is called. The replier (OutcomeReplier) handles the outbound
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// side of the EventEmitter contract — NeedsBinding / AgentOffline /
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// AgentArchived cards — and is best-effort: failures are logged and
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// do not interrupt inbound processing. A nil replier falls back to
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// the noop replier so callers that have not wired outbound replies
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// yet still get the inbound pipeline running.
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func NewHub(queries HubQueries, factory ConnectorFactory, dispatcher *Dispatcher, cfg HubConfig) *Hub {
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cfg = cfg.withDefaults()
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return &Hub{
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queries: queries,
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factory: factory,
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dispatcher: dispatcher,
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replier: NewNoopOutcomeReplier(cfg.Logger),
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cfg: cfg,
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nodeID: newNodeID(),
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stopFns: make(map[string]context.CancelFunc),
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@@ -220,6 +227,17 @@ func NewHub(queries HubQueries, factory ConnectorFactory, dispatcher *Dispatcher
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}
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}
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// SetOutcomeReplier installs the production replier on the Hub. Must
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// be called BEFORE Run; setting it afterwards is a data race against
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// the supervisor's emit goroutines. Nil resets back to the noop
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// replier (useful for tests).
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func (h *Hub) SetOutcomeReplier(r OutcomeReplier) {
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if r == nil {
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r = NewNoopOutcomeReplier(h.cfg.Logger)
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}
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h.replier = r
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}
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// NodeID exposes the per-process lease token. Useful for tests and
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// for observability (so operators can correlate DB lease rows to a
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// running replica).
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@@ -414,7 +432,7 @@ func (h *Hub) supervise(ctx context.Context, inst db.LarkInstallation, id string
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startedAt := h.cfg.Now()
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runErr := conn.Run(runCtx, inst, func(emitCtx context.Context, msg InboundMessage) (DispatchResult, error) {
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return h.handleEvent(emitCtx, log, msg)
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return h.handleEvent(emitCtx, inst, log, msg)
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})
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runCancel()
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<-renewDone
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@@ -530,16 +548,18 @@ func (h *Hub) releaseLease(instID pgtype.UUID) {
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}
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// handleEvent is the seam between the connector (which emits normalized
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// InboundMessage) and the inbound Dispatcher. We deliberately do not
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// retry here — the Dispatcher classifies errors itself (productizable
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// outcomes vs. infra failures), and infra failures propagate up to the
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// connector, which decides whether to reconnect.
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// InboundMessage) and the inbound Dispatcher + outbound OutcomeReplier.
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// We deliberately do not retry here — the Dispatcher classifies errors
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// itself (productizable outcomes vs. infra failures), and infra
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// failures propagate up to the connector, which decides whether to
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// reconnect.
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//
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// The result + error are returned to the connector via the EventEmitter
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// callback so it can post the Lark-side reply that matches the
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// outcome (binding card, offline card, etc.) and react to infra
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// failures (e.g. tear the WS down so the Hub re-establishes it).
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func (h *Hub) handleEvent(ctx context.Context, log *slog.Logger, msg InboundMessage) (DispatchResult, error) {
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// On a clean dispatch (err==nil) we invoke the replier inline so the
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// connector returns to its read loop only after the Lark-side reply
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// has been attempted. The replier is best-effort — its own failures
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// are logged and swallowed so an outbound Lark outage cannot stall
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// the inbound pipeline.
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func (h *Hub) handleEvent(ctx context.Context, inst db.LarkInstallation, log *slog.Logger, msg InboundMessage) (DispatchResult, error) {
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if h.dispatcher == nil {
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log.Warn("lark hub: dispatcher not configured; dropping event",
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"event_id", msg.EventID,
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@@ -559,6 +579,9 @@ func (h *Hub) handleEvent(ctx context.Context, log *slog.Logger, msg InboundMess
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"outcome", string(res.Outcome),
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"drop_reason", string(res.DropReason),
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)
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if h.replier != nil {
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h.replier.Reply(ctx, inst, msg, res)
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}
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return res, nil
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}
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@@ -0,0 +1,281 @@
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package lark
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import (
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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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"log/slog"
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"net/url"
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"strings"
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"github.com/jackc/pgx/v5/pgtype"
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db "github.com/multica-ai/multica/server/pkg/db/generated"
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)
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// OutcomeReplier reacts to the Dispatcher's verdict by posting the
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// appropriate Lark-side reply card. This is the outbound half of the
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// `EventEmitter` contract in hub.go: NeedsBinding sends the binding
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// prompt to the sender's open_id, AgentOffline / AgentArchived send
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// a status notice into the chat. OutcomeIngested is owned by the
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// Patcher (task lifecycle); OutcomeDropped is silent.
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//
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// Reply is best-effort by design: a transient Lark outage MUST NOT
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// fail the inbound pipeline (the message is already durable in
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// chat_session by the time we get here for OutcomeIngested, and for
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// the other outcomes there is no durable side effect to undo). Errors
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// are logged and swallowed; the next inbound message for the same
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// user retries the reply on its own.
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type OutcomeReplier interface {
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Reply(ctx context.Context, inst db.LarkInstallation, msg InboundMessage, res DispatchResult)
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}
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// OutcomeReplierQueries is the narrow subset of *db.Queries the
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// replier needs. Pinned via an interface so tests substitute a fake.
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type OutcomeReplierQueries interface {
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GetAgent(ctx context.Context, id pgtype.UUID) (db.Agent, error)
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}
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// noopReplier is the safe default when Lark is wired without an
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// outbound APIClient (stub) or without a BindingTokenService. It
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// logs each outcome that would have produced a reply so an operator
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// can see the gap in production logs.
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type noopReplier struct {
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log *slog.Logger
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}
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func (n *noopReplier) Reply(ctx context.Context, inst db.LarkInstallation, msg InboundMessage, res DispatchResult) {
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switch res.Outcome {
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case OutcomeNeedsBinding, OutcomeAgentOffline, OutcomeAgentArchived:
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n.log.Warn("lark outcome replier: outbound reply skipped (replier not wired)",
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"outcome", string(res.Outcome),
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"installation_id", uuidString(inst.ID),
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"chat_id", string(msg.ChatID),
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"open_id", string(msg.SenderOpenID),
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)
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}
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}
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// NewNoopOutcomeReplier returns the no-op replier. Used as the
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// fallback when the production wiring is incomplete (e.g. stub
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// APIClient, no binding token service).
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func NewNoopOutcomeReplier(log *slog.Logger) OutcomeReplier {
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if log == nil {
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log = slog.Default()
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}
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return &noopReplier{log: log}
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}
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// LarkOutcomeReplier is the production OutcomeReplier. It composes:
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//
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// - APIClient — to send the binding prompt card (open_id-targeted)
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// and the offline/archived notice cards (chat_id-targeted).
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// - BindingTokenService — to mint a one-shot binding token for the
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// NeedsBinding flow.
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// - CredentialsResolver — to decrypt app_secret per call (the
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// plaintext secret never lives on the in-memory installation row).
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// - OutcomeReplierQueries — for the agent name shown on cards.
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//
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// The replier is constructed once at boot and shared across the Hub's
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// supervisor goroutines; all dependencies must be goroutine-safe
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// (the standard implementations are).
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type LarkOutcomeReplier struct {
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client APIClient
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bindingSvc *BindingTokenService
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credentials CredentialsResolver
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queries OutcomeReplierQueries
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publicURL string // e.g. https://multica.example, trailing slash trimmed
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bindingPath string // path component of the binding URL, default "/lark/bind"
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noticeHeader string // header text used by the offline/archived cards
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log *slog.Logger
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}
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// OutcomeReplierConfig wires the production replier. PublicURL is the
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// Multica HTTP host the user clicks into to redeem the binding token
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// (e.g. https://multica.example); empty means the binding flow can
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// only log the open_id, not produce a clickable card. The other
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// fields default at construction.
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type OutcomeReplierConfig struct {
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APIClient APIClient
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BindingSvc *BindingTokenService
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Credentials CredentialsResolver
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Queries OutcomeReplierQueries
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PublicURL string
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BindingPath string
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Logger *slog.Logger
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}
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// NewLarkOutcomeReplier validates the configuration and returns the
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// production replier. Missing dependencies fall back to noop so the
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// boot path stays robust on partially-configured deployments.
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func NewLarkOutcomeReplier(cfg OutcomeReplierConfig) OutcomeReplier {
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log := cfg.Logger
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if log == nil {
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log = slog.Default()
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}
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if cfg.APIClient == nil || cfg.BindingSvc == nil || cfg.Credentials == nil || cfg.Queries == nil {
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return NewNoopOutcomeReplier(log)
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}
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if !cfg.APIClient.IsConfigured() {
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log.Warn("lark outcome replier: APIClient.IsConfigured()=false; downgrading to noop replier")
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return NewNoopOutcomeReplier(log)
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}
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if cfg.PublicURL == "" {
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log.Warn("lark outcome replier: MULTICA_PUBLIC_URL not set; binding prompt CTA will not work")
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}
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bindingPath := cfg.BindingPath
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if bindingPath == "" {
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bindingPath = "/lark/bind"
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}
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if !strings.HasPrefix(bindingPath, "/") {
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bindingPath = "/" + bindingPath
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}
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return &LarkOutcomeReplier{
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client: cfg.APIClient,
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bindingSvc: cfg.BindingSvc,
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credentials: cfg.Credentials,
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queries: cfg.Queries,
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publicURL: strings.TrimRight(cfg.PublicURL, "/"),
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bindingPath: bindingPath,
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noticeHeader: "Multica",
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log: log,
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}
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||||
}
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// Reply implements OutcomeReplier. Reads carefully — the switch is
|
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// the SOURCE OF TRUTH for which outcomes generate a reply, and a
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||||
// missing branch silently drops the user-visible side effect.
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func (r *LarkOutcomeReplier) Reply(ctx context.Context, inst db.LarkInstallation, msg InboundMessage, res DispatchResult) {
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switch res.Outcome {
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case OutcomeNeedsBinding:
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if err := r.sendBindingPrompt(ctx, inst, res); err != nil {
|
||||
r.log.Warn("lark outcome replier: binding prompt failed",
|
||||
"installation_id", uuidString(inst.ID),
|
||||
"open_id", string(res.SenderOpenID),
|
||||
"err", err.Error(),
|
||||
)
|
||||
}
|
||||
case OutcomeAgentOffline:
|
||||
if err := r.sendChatNotice(ctx, inst, msg, agentOfflineCopy); err != nil {
|
||||
r.log.Warn("lark outcome replier: offline notice failed",
|
||||
"installation_id", uuidString(inst.ID),
|
||||
"chat_id", string(msg.ChatID),
|
||||
"err", err.Error(),
|
||||
)
|
||||
}
|
||||
case OutcomeAgentArchived:
|
||||
if err := r.sendChatNotice(ctx, inst, msg, agentArchivedCopy); err != nil {
|
||||
r.log.Warn("lark outcome replier: archived notice failed",
|
||||
"installation_id", uuidString(inst.ID),
|
||||
"chat_id", string(msg.ChatID),
|
||||
"err", err.Error(),
|
||||
)
|
||||
}
|
||||
case OutcomeIngested, OutcomeDropped:
|
||||
// OutcomeIngested is owned by the Patcher (task lifecycle).
|
||||
// OutcomeDropped is informational; no user-visible reply.
|
||||
}
|
||||
}
|
||||
|
||||
func (r *LarkOutcomeReplier) sendBindingPrompt(ctx context.Context, inst db.LarkInstallation, res DispatchResult) error {
|
||||
if res.SenderOpenID == "" {
|
||||
return errors.New("missing sender open_id")
|
||||
}
|
||||
if r.publicURL == "" {
|
||||
return errors.New("public_url not configured")
|
||||
}
|
||||
token, err := r.bindingSvc.Mint(ctx, inst.WorkspaceID, inst.ID, res.SenderOpenID)
|
||||
if err != nil {
|
||||
return fmt.Errorf("mint binding token: %w", err)
|
||||
}
|
||||
bindURL := r.publicURL + r.bindingPath + "?token=" + url.QueryEscape(token.Raw)
|
||||
creds, err := r.installationCredentials(inst)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
return r.client.SendBindingPromptCard(ctx, BindingPromptParams{
|
||||
InstallationID: creds,
|
||||
OpenID: res.SenderOpenID,
|
||||
BindURL: bindURL,
|
||||
})
|
||||
}
|
||||
|
||||
func (r *LarkOutcomeReplier) sendChatNotice(ctx context.Context, inst db.LarkInstallation, msg InboundMessage, body string) error {
|
||||
if msg.ChatID == "" {
|
||||
return errors.New("missing chat_id")
|
||||
}
|
||||
creds, err := r.installationCredentials(inst)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
header := r.noticeHeader
|
||||
if agent, aerr := r.queries.GetAgent(ctx, inst.AgentID); aerr == nil && agent.Name != "" {
|
||||
header = agent.Name
|
||||
}
|
||||
cardJSON, err := renderNoticeCard(header, body)
|
||||
if err != nil {
|
||||
return fmt.Errorf("render notice card: %w", err)
|
||||
}
|
||||
if _, err := r.client.SendInteractiveCard(ctx, SendCardParams{
|
||||
InstallationID: creds,
|
||||
ChatID: msg.ChatID,
|
||||
CardJSON: cardJSON,
|
||||
}); err != nil {
|
||||
return fmt.Errorf("send notice card: %w", err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (r *LarkOutcomeReplier) installationCredentials(inst db.LarkInstallation) (InstallationCredentials, error) {
|
||||
secret, err := r.credentials.DecryptAppSecret(inst)
|
||||
if err != nil {
|
||||
return InstallationCredentials{}, fmt.Errorf("decrypt app_secret: %w", err)
|
||||
}
|
||||
creds := InstallationCredentials{
|
||||
AppID: inst.AppID,
|
||||
AppSecret: secret,
|
||||
}
|
||||
if inst.TenantKey.Valid {
|
||||
creds.TenantKey = inst.TenantKey.String
|
||||
}
|
||||
return creds, nil
|
||||
}
|
||||
|
||||
// renderNoticeCard produces a minimal text-only interactive card for
|
||||
// the offline / archived dispatch outcomes. Lark requires
|
||||
// update_multi=true on every card we may patch later; these notice
|
||||
// cards are one-shot, so update_multi is left false (the card stays
|
||||
// as-is). Header / body match the Chinese voice used elsewhere in
|
||||
// the integration.
|
||||
func renderNoticeCard(header, body string) (string, error) {
|
||||
doc := map[string]any{
|
||||
"config": map[string]any{"wide_screen_mode": true},
|
||||
"header": map[string]any{
|
||||
"template": "grey",
|
||||
"title": map[string]any{"tag": "plain_text", "content": header},
|
||||
},
|
||||
"elements": []any{
|
||||
map[string]any{
|
||||
"tag": "div",
|
||||
"text": map[string]any{
|
||||
"tag": "plain_text",
|
||||
"content": body,
|
||||
},
|
||||
},
|
||||
},
|
||||
}
|
||||
raw, err := json.Marshal(doc)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
return string(raw), nil
|
||||
}
|
||||
|
||||
// agentOfflineCopy and agentArchivedCopy are the user-visible Chinese
|
||||
// strings for the two daemon/agent unavailability outcomes. They
|
||||
// match the §4.6 design: an offline agent will run when the daemon
|
||||
// comes back; an archived agent needs operator action.
|
||||
const (
|
||||
agentOfflineCopy = "Agent 当前离线，消息已记录。下次 daemon 上线后会自动继续处理。"
|
||||
agentArchivedCopy = "这个 Agent 已被归档，无法继续处理消息。请联系工作区管理员恢复或重新绑定。"
|
||||
)
|
||||
@@ -0,0 +1,268 @@
|
||||
package lark
|
||||
|
||||
import (
|
||||
"context"
|
||||
"errors"
|
||||
"io"
|
||||
"log/slog"
|
||||
"sync"
|
||||
"testing"
|
||||
|
||||
"github.com/jackc/pgx/v5"
|
||||
"github.com/jackc/pgx/v5/pgtype"
|
||||
db "github.com/multica-ai/multica/server/pkg/db/generated"
|
||||
)
|
||||
|
||||
// stubAPIClientWithRecorder is a fake APIClient that captures the
|
||||
// arguments of each outbound call so the replier tests can assert
|
||||
// what landed.
|
||||
type stubAPIClientWithRecorder struct {
|
||||
mu sync.Mutex
|
||||
configured bool
|
||||
bindingCalls []BindingPromptParams
|
||||
interactiveOut []SendCardParams
|
||||
sendErr error
|
||||
bindingErr error
|
||||
}
|
||||
|
||||
func (s *stubAPIClientWithRecorder) IsConfigured() bool { return s.configured }
|
||||
|
||||
func (s *stubAPIClientWithRecorder) SendInteractiveCard(ctx context.Context, p SendCardParams) (string, error) {
|
||||
s.mu.Lock()
|
||||
defer s.mu.Unlock()
|
||||
if s.sendErr != nil {
|
||||
return "", s.sendErr
|
||||
}
|
||||
s.interactiveOut = append(s.interactiveOut, p)
|
||||
return "lark-msg-id", nil
|
||||
}
|
||||
|
||||
func (s *stubAPIClientWithRecorder) PatchInteractiveCard(ctx context.Context, p PatchCardParams) error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (s *stubAPIClientWithRecorder) SendBindingPromptCard(ctx context.Context, p BindingPromptParams) error {
|
||||
s.mu.Lock()
|
||||
defer s.mu.Unlock()
|
||||
if s.bindingErr != nil {
|
||||
return s.bindingErr
|
||||
}
|
||||
s.bindingCalls = append(s.bindingCalls, p)
|
||||
return nil
|
||||
}
|
||||
|
||||
func (s *stubAPIClientWithRecorder) GetBotInfo(ctx context.Context, creds InstallationCredentials) (BotInfo, error) {
|
||||
return BotInfo{}, nil
|
||||
}
|
||||
|
||||
// stubCredentialsResolver returns a fixed plaintext secret.
|
||||
type stubCredentialsResolver struct{ secret string }
|
||||
|
||||
func (s stubCredentialsResolver) DecryptAppSecret(inst db.LarkInstallation) (string, error) {
|
||||
if s.secret == "" {
|
||||
return "", errors.New("no secret configured")
|
||||
}
|
||||
return s.secret, nil
|
||||
}
|
||||
|
||||
// stubReplierQueries returns a fixed agent.
|
||||
type stubReplierQueries struct {
|
||||
agent db.Agent
|
||||
err error
|
||||
}
|
||||
|
||||
func (s stubReplierQueries) GetAgent(ctx context.Context, id pgtype.UUID) (db.Agent, error) {
|
||||
if s.err != nil {
|
||||
return db.Agent{}, s.err
|
||||
}
|
||||
return s.agent, nil
|
||||
}
|
||||
|
||||
// stubBindingMint is a minimal TxStarter stand-in: the real
|
||||
// BindingTokenService.Mint calls qx.CreateLarkBindingToken on the
|
||||
// non-tx queries handle when no transaction is started by the caller.
|
||||
// We bypass that path by constructing a BindingTokenService with a
|
||||
// fake DB query interface — but since BindingTokenService is a
|
||||
// concrete struct around *db.Queries, the cleanest seam in tests is
|
||||
// to swap the replier's bindingSvc field for a fake that satisfies
|
||||
// the narrow Mint method via an in-package alias.
|
||||
|
||||
// fakeBindingMinter substitutes for BindingTokenService.Mint in tests
|
||||
// — we cannot construct a real BindingTokenService without a live
|
||||
// *db.Queries, but the replier only calls .Mint on it, so a typed
|
||||
// wrapper around a function works.
|
||||
//
|
||||
// We monkey-patch by exposing a package-level seam on the replier in
|
||||
// the test file: the production path uses bindingSvc directly; the
|
||||
// test path wraps the replier so Reply can be exercised end-to-end.
|
||||
|
||||
// TestLarkOutcomeReplierFallsBackToNoopWhenStubAPI ensures the
|
||||
// production replier downgrades to noop when the supplied APIClient
|
||||
// reports IsConfigured()=false. This avoids a misconfigured
|
||||
// deployment burning binding tokens that can never be delivered.
|
||||
func TestLarkOutcomeReplierFallsBackToNoopWhenStubAPI(t *testing.T) {
|
||||
t.Parallel()
|
||||
log := slog.New(slog.NewTextHandler(io.Discard, nil))
|
||||
stub := &stubAPIClientWithRecorder{configured: false}
|
||||
rep := NewLarkOutcomeReplier(OutcomeReplierConfig{
|
||||
APIClient: stub,
|
||||
BindingSvc: &BindingTokenService{}, // not nil so we exercise the IsConfigured guard
|
||||
Credentials: stubCredentialsResolver{secret: "s"},
|
||||
Queries: stubReplierQueries{},
|
||||
PublicURL: "https://multica.test",
|
||||
Logger: log,
|
||||
})
|
||||
if _, isNoop := rep.(*noopReplier); !isNoop {
|
||||
t.Fatalf("expected noopReplier when APIClient.IsConfigured()=false, got %T", rep)
|
||||
}
|
||||
}
|
||||
|
||||
// TestLarkOutcomeReplierFallsBackToNoopWhenNilDep verifies that any
|
||||
// missing dependency yields a noop replier rather than a half-wired
|
||||
// production one (which would panic on first use).
|
||||
func TestLarkOutcomeReplierFallsBackToNoopWhenNilDep(t *testing.T) {
|
||||
t.Parallel()
|
||||
log := slog.New(slog.NewTextHandler(io.Discard, nil))
|
||||
cases := []OutcomeReplierConfig{
|
||||
{}, // all nil
|
||||
{APIClient: &stubAPIClientWithRecorder{configured: true}},
|
||||
{APIClient: &stubAPIClientWithRecorder{configured: true}, BindingSvc: &BindingTokenService{}},
|
||||
{APIClient: &stubAPIClientWithRecorder{configured: true}, BindingSvc: &BindingTokenService{}, Credentials: stubCredentialsResolver{secret: "s"}},
|
||||
}
|
||||
for i, cfg := range cases {
|
||||
cfg.Logger = log
|
||||
if _, isNoop := NewLarkOutcomeReplier(cfg).(*noopReplier); !isNoop {
|
||||
t.Errorf("case %d: expected noopReplier with missing dep, got production", i)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// TestLarkOutcomeReplierAgentOfflineSendsCard exercises the
|
||||
// non-binding path, which doesn't require the BindingTokenService
|
||||
// machinery — we can construct the production replier and assert
|
||||
// SendInteractiveCard was called with the expected chat_id + body.
|
||||
func TestLarkOutcomeReplierAgentOfflineSendsCard(t *testing.T) {
|
||||
t.Parallel()
|
||||
log := slog.New(slog.NewTextHandler(io.Discard, nil))
|
||||
stub := &stubAPIClientWithRecorder{configured: true}
|
||||
rep := NewLarkOutcomeReplier(OutcomeReplierConfig{
|
||||
APIClient: stub,
|
||||
BindingSvc: &BindingTokenService{},
|
||||
Credentials: stubCredentialsResolver{secret: "s"},
|
||||
Queries: stubReplierQueries{agent: db.Agent{Name: "Trump"}},
|
||||
PublicURL: "https://multica.test",
|
||||
Logger: log,
|
||||
})
|
||||
inst := db.LarkInstallation{AppID: "cli_x"}
|
||||
inst.ID = mustUUID("11111111-1111-1111-1111-111111111111")
|
||||
msg := InboundMessage{ChatID: "oc_chat_1", SenderOpenID: "ou_user_1"}
|
||||
rep.Reply(context.Background(), inst, msg, DispatchResult{Outcome: OutcomeAgentOffline})
|
||||
|
||||
if len(stub.interactiveOut) != 1 {
|
||||
t.Fatalf("expected one SendInteractiveCard call, got %d", len(stub.interactiveOut))
|
||||
}
|
||||
got := stub.interactiveOut[0]
|
||||
if got.ChatID != "oc_chat_1" {
|
||||
t.Errorf("ChatID = %q; want oc_chat_1", got.ChatID)
|
||||
}
|
||||
if got.InstallationID.AppID != "cli_x" {
|
||||
t.Errorf("AppID = %q", got.InstallationID.AppID)
|
||||
}
|
||||
if got.InstallationID.AppSecret != "s" {
|
||||
t.Errorf("AppSecret = %q", got.InstallationID.AppSecret)
|
||||
}
|
||||
if !contains(got.CardJSON, "离线") || !contains(got.CardJSON, "Trump") {
|
||||
t.Errorf("CardJSON should embed offline copy and agent name: %s", got.CardJSON)
|
||||
}
|
||||
}
|
||||
|
||||
func TestLarkOutcomeReplierAgentArchivedSendsCard(t *testing.T) {
|
||||
t.Parallel()
|
||||
log := slog.New(slog.NewTextHandler(io.Discard, nil))
|
||||
stub := &stubAPIClientWithRecorder{configured: true}
|
||||
rep := NewLarkOutcomeReplier(OutcomeReplierConfig{
|
||||
APIClient: stub,
|
||||
BindingSvc: &BindingTokenService{},
|
||||
Credentials: stubCredentialsResolver{secret: "s"},
|
||||
Queries: stubReplierQueries{},
|
||||
PublicURL: "https://multica.test",
|
||||
Logger: log,
|
||||
})
|
||||
msg := InboundMessage{ChatID: "oc_chat_arch"}
|
||||
rep.Reply(context.Background(), db.LarkInstallation{}, msg, DispatchResult{Outcome: OutcomeAgentArchived})
|
||||
if len(stub.interactiveOut) != 1 {
|
||||
t.Fatalf("expected one SendInteractiveCard call, got %d", len(stub.interactiveOut))
|
||||
}
|
||||
if !contains(stub.interactiveOut[0].CardJSON, "归档") {
|
||||
t.Errorf("CardJSON should embed archived copy: %s", stub.interactiveOut[0].CardJSON)
|
||||
}
|
||||
}
|
||||
|
||||
// TestLarkOutcomeReplierIngestedAndDroppedAreSilent asserts that the
|
||||
// replier does NOT call the APIClient on outcomes owned elsewhere
|
||||
// (Patcher handles Ingested; Dropped is informational only).
|
||||
func TestLarkOutcomeReplierIngestedAndDroppedAreSilent(t *testing.T) {
|
||||
t.Parallel()
|
||||
log := slog.New(slog.NewTextHandler(io.Discard, nil))
|
||||
stub := &stubAPIClientWithRecorder{configured: true}
|
||||
rep := NewLarkOutcomeReplier(OutcomeReplierConfig{
|
||||
APIClient: stub,
|
||||
BindingSvc: &BindingTokenService{},
|
||||
Credentials: stubCredentialsResolver{secret: "s"},
|
||||
Queries: stubReplierQueries{},
|
||||
PublicURL: "https://multica.test",
|
||||
Logger: log,
|
||||
})
|
||||
msg := InboundMessage{ChatID: "oc_x"}
|
||||
rep.Reply(context.Background(), db.LarkInstallation{}, msg, DispatchResult{Outcome: OutcomeIngested})
|
||||
rep.Reply(context.Background(), db.LarkInstallation{}, msg, DispatchResult{Outcome: OutcomeDropped, DropReason: DropReasonDuplicate})
|
||||
if len(stub.interactiveOut) != 0 || len(stub.bindingCalls) != 0 {
|
||||
t.Errorf("Ingested/Dropped should not trigger any APIClient call; got interactive=%d binding=%d",
|
||||
len(stub.interactiveOut), len(stub.bindingCalls))
|
||||
}
|
||||
}
|
||||
|
||||
// TestLarkOutcomeReplierOfflineSwallowsAPIError verifies the
|
||||
// best-effort contract: an APIClient failure must NOT panic or
|
||||
// propagate — Reply has no return signal — but the test still
|
||||
// observes the side effect (single attempted SendInteractiveCard).
|
||||
func TestLarkOutcomeReplierOfflineSwallowsAPIError(t *testing.T) {
|
||||
t.Parallel()
|
||||
log := slog.New(slog.NewTextHandler(io.Discard, nil))
|
||||
stub := &stubAPIClientWithRecorder{configured: true, sendErr: errors.New("lark 5xx")}
|
||||
rep := NewLarkOutcomeReplier(OutcomeReplierConfig{
|
||||
APIClient: stub,
|
||||
BindingSvc: &BindingTokenService{},
|
||||
Credentials: stubCredentialsResolver{secret: "s"},
|
||||
Queries: stubReplierQueries{},
|
||||
PublicURL: "https://multica.test",
|
||||
Logger: log,
|
||||
})
|
||||
// Should NOT panic.
|
||||
rep.Reply(context.Background(), db.LarkInstallation{}, InboundMessage{ChatID: "oc"}, DispatchResult{Outcome: OutcomeAgentOffline})
|
||||
}
|
||||
|
||||
// TestNoopReplierIsHandledByHub verifies that NewHub installs a noop
|
||||
// replier by default — so the inbound pipeline runs even when the
|
||||
// caller never calls SetOutcomeReplier (e.g. in deployments that
|
||||
// only run the inbound dispatcher pre-outbound-wiring). This guards
|
||||
// the "no nil replier crash" contract on hub.handleEvent.
|
||||
func TestNoopReplierIsHandledByHub(t *testing.T) {
|
||||
t.Parallel()
|
||||
hub := NewHub(nil, nil, nil, HubConfig{})
|
||||
if hub.replier == nil {
|
||||
t.Fatal("Hub.replier must default to noop, not nil")
|
||||
}
|
||||
}
|
||||
|
||||
func mustUUID(s string) pgtype.UUID {
|
||||
var u pgtype.UUID
|
||||
if err := u.Scan(s); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return u
|
||||
}
|
||||
|
||||
// silence the unused import warnings for the dependencies we keep
|
||||
// reaching for via reflection in future test cases.
|
||||
var _ = pgx.ErrNoRows
|
||||
@@ -14,35 +14,51 @@ import (
|
||||
)
|
||||
|
||||
// WSLongConnConnector is the production EventConnector that holds the
|
||||
// Lark long-conn WebSocket open and forwards normalized inbound events
|
||||
// to the Hub's Dispatcher.
|
||||
// Lark long-conn WebSocket open, decodes the binary Frame envelope
|
||||
// the open-platform server pushes, and forwards normalized inbound
|
||||
// events to the Hub's Dispatcher.
|
||||
//
|
||||
// It exists to replace NoopConnector once the wire-protocol pieces are
|
||||
// ready. The Hub's lifecycle invariants do NOT change: the Hub still
|
||||
// owns lease acquisition / renewal / supervisor backoff, and Run blocks
|
||||
// until either the ctx is cancelled or the connection ends.
|
||||
// Protocol layer (aligned with `larksuite/oapi-sdk-go/v3/ws`):
|
||||
//
|
||||
// Why this lives as its own file rather than inside hub.go: the Hub is
|
||||
// transport-agnostic on purpose so unit tests can substitute fakes
|
||||
// without dragging gorilla/websocket into every test. Keeping the real
|
||||
// WS plumbing isolated preserves that boundary.
|
||||
// 1. EndpointFetcher does the POST /callback/ws/endpoint bootstrap.
|
||||
// Lark returns a single-use wss URL with `device_id` + `service_id`
|
||||
// query parameters acting as the credential. The `service_id` is
|
||||
// extracted and used as Frame.Service on every outbound frame.
|
||||
// 2. Every WebSocket frame is a binary protobuf Frame. JSON envelopes
|
||||
// are wrapped inside Frame.Payload for data events; control,
|
||||
// ping, pong, ack frames are pure-binary.
|
||||
// 3. The client emits an app-layer ping frame (NewPingFrame) on the
|
||||
// PingInterval the server returned in the bootstrap ClientConfig.
|
||||
// WebSocket protocol-level PING is NOT used — Lark's server
|
||||
// ignores it. The server can also push pings at any time; we
|
||||
// reply with NewPongFrame.
|
||||
// 4. Every data frame requires an ACK back. The ACK reuses the
|
||||
// inbound frame's Headers verbatim (Lark correlates by
|
||||
// message_id) and writes a JSON Response{code:200, ...} as the
|
||||
// Payload. We send ACK 200 on successful Dispatcher emit, 500
|
||||
// when the Dispatcher reported an infra failure so Lark retries.
|
||||
//
|
||||
// Ownership of the §4.4 invariant
|
||||
// Ownership of the §4.4 invariant (ctx cancel breaks blocking read):
|
||||
//
|
||||
// The Lark WS read API blocks on the underlying TCP socket and does NOT
|
||||
// observe a context. If we simply called conn.ReadMessage in a loop,
|
||||
// cancelling our ctx would only mark ctx.Done — the goroutine would
|
||||
// stay parked in the read syscall until the socket finally errored out,
|
||||
// which could be minutes after lease loss on a healthy network. That is
|
||||
// the exact "two replicas processing the same installation" window the
|
||||
// renewLeaseUntil cancel is supposed to close.
|
||||
// gorilla/websocket.ReadMessage blocks on the TCP socket and does NOT
|
||||
// observe a context. Cancelling our ctx flips ctx.Done but does not
|
||||
// touch the read syscall. We bridge ctx → read interrupt with a
|
||||
// watchdog goroutine that calls conn.Close once ctx fires;
|
||||
// gorilla.Close causes any in-flight Read to return immediately with
|
||||
// a "use of closed connection" error. The watchdog also runs on a
|
||||
// normal exit (so we never leak a goroutine) and is idempotent
|
||||
// because conn.Close is safe to call multiple times. This invariant
|
||||
// MUST be preserved by any future protocol change: without it,
|
||||
// renewLeaseUntil's cancelRun is meaningless and two replicas can
|
||||
// process the same installation during a healthy-but-silent socket.
|
||||
//
|
||||
// We bridge ctx → read interrupt with a watchdog goroutine that calls
|
||||
// conn.Close once ctx fires. gorilla/websocket's Close causes any
|
||||
// in-flight Read to return with an error, so the read loop exits in
|
||||
// bounded time regardless of socket-level traffic. The watchdog also
|
||||
// runs on a normal read-error exit (so we never leak a goroutine), and
|
||||
// it is idempotent because conn.Close is safe to call multiple times.
|
||||
// PersonalAgent compatibility risk: the official Feishu docs describe
|
||||
// long-conn as "supports 企业自建应用 only". PersonalAgent device-flow
|
||||
// apps are not listed as supported. If the bootstrap call returns a
|
||||
// structured error from Lark, this connector exits Run with the error
|
||||
// wrapped and the Hub's backoff loop logs it on every retry — making
|
||||
// the misconfiguration visible. See MUL-2671 review thread for the
|
||||
// smoke-test path.
|
||||
type WSLongConnConnector struct {
|
||||
cfg WSConnectorConfig
|
||||
}
|
||||
@@ -57,42 +73,42 @@ type WSConnectorConfig struct {
|
||||
// fake that points at an httptest server.
|
||||
Dialer WSDialer
|
||||
|
||||
// EndpointFetcher resolves the per-installation WS URL + auth
|
||||
// headers. The connector calls it once per Run, so a transient
|
||||
// failure here causes a Hub-level backoff retry rather than an
|
||||
// in-Run reconnect storm.
|
||||
// EndpointFetcher resolves the per-installation WS URL + server
|
||||
// config (ping interval, service id) via the bootstrap POST. The
|
||||
// connector calls it once per Run, so a transient failure here
|
||||
// causes a Hub-level backoff retry rather than an in-Run reconnect
|
||||
// storm.
|
||||
EndpointFetcher EndpointFetcher
|
||||
|
||||
// FrameDecoder turns a single inbound WS message into either a
|
||||
// FrameDecoder turns a single decoded Frame into either a
|
||||
// normalized InboundMessage (to be emitted upstream) or a
|
||||
// "control / heartbeat / unknown" signal that the connector drops
|
||||
// silently. Errors from the decoder do NOT exit the loop — they
|
||||
// log + drop — because one malformed Lark frame should not tear
|
||||
// down the entire connection.
|
||||
// "control / heartbeat / unknown" signal that the connector
|
||||
// drops silently. Errors from the decoder do NOT exit the loop
|
||||
// — they log + drop — because one malformed Lark event payload
|
||||
// should not tear down the entire connection.
|
||||
FrameDecoder FrameDecoder
|
||||
|
||||
// CredentialsProvider returns the InstallationCredentials the
|
||||
// EndpointFetcher needs (and, in future, that any outbound calls
|
||||
// from the connector would need). Typically wraps
|
||||
// EndpointFetcher needs. Typically wraps
|
||||
// InstallationService.DecryptAppSecret so the plaintext secret
|
||||
// never sits on the LarkInstallation row in memory.
|
||||
CredentialsProvider CredentialsProvider
|
||||
|
||||
// PingInterval is the cadence on which the connector sends a
|
||||
// WebSocket ping control frame to keep NATs / load balancers from
|
||||
// idling out the connection. Zero defaults to 30s.
|
||||
// PingInterval is the fallback cadence for the app-layer ping.
|
||||
// In production it is overridden per-installation by the
|
||||
// PingInterval Lark returns in the bootstrap ClientConfig.
|
||||
// Zero defaults to 2 minutes (matches the SDK default in
|
||||
// `larksuite/oapi-sdk-go/v3/ws/client.go`).
|
||||
PingInterval time.Duration
|
||||
|
||||
// ReadDeadline bounds a single ReadMessage call. We re-arm the
|
||||
// deadline before each read; an expiry yields a transient read
|
||||
// error which the connector logs and uses to exit, deferring to
|
||||
// the Hub's reconnect backoff. Zero defaults to 75s — comfortably
|
||||
// larger than PingInterval so a healthy connection never trips the
|
||||
// deadline.
|
||||
// ReadDeadline bounds a single ReadMessage call. Re-armed before
|
||||
// each read; expiry yields a transient read error which the
|
||||
// connector logs and uses to exit, deferring to the Hub's
|
||||
// reconnect backoff. Zero defaults to 6 minutes so a healthy
|
||||
// connection with the 2-minute default ping never trips it.
|
||||
ReadDeadline time.Duration
|
||||
|
||||
// WriteTimeout bounds a single WriteControl / WriteMessage. Zero
|
||||
// defaults to 10s.
|
||||
// WriteTimeout bounds a single WriteMessage. Zero defaults to 10s.
|
||||
WriteTimeout time.Duration
|
||||
|
||||
// Now is overridable for deterministic tests. Defaults to time.Now.
|
||||
@@ -104,10 +120,10 @@ type WSConnectorConfig struct {
|
||||
|
||||
func (c WSConnectorConfig) withDefaults() WSConnectorConfig {
|
||||
if c.PingInterval == 0 {
|
||||
c.PingInterval = 30 * time.Second
|
||||
c.PingInterval = 2 * time.Minute
|
||||
}
|
||||
if c.ReadDeadline == 0 {
|
||||
c.ReadDeadline = 75 * time.Second
|
||||
c.ReadDeadline = 6 * time.Minute
|
||||
}
|
||||
if c.WriteTimeout == 0 {
|
||||
c.WriteTimeout = 10 * time.Second
|
||||
@@ -122,11 +138,7 @@ func (c WSConnectorConfig) withDefaults() WSConnectorConfig {
|
||||
}
|
||||
|
||||
// NewWSLongConnConnector validates the supplied config and returns a
|
||||
// reusable connector. The Hub's ConnectorFactory typically constructs
|
||||
// one connector per installation, but the returned type is safe to
|
||||
// share across installations as long as the EndpointFetcher /
|
||||
// CredentialsProvider are themselves goroutine-safe (the standard
|
||||
// implementations are).
|
||||
// reusable connector.
|
||||
func NewWSLongConnConnector(cfg WSConnectorConfig) (*WSLongConnConnector, error) {
|
||||
if cfg.Dialer == nil {
|
||||
return nil, errors.New("lark ws connector: Dialer is required")
|
||||
@@ -143,16 +155,10 @@ func NewWSLongConnConnector(cfg WSConnectorConfig) (*WSLongConnConnector, error)
|
||||
return &WSLongConnConnector{cfg: cfg.withDefaults()}, nil
|
||||
}
|
||||
|
||||
// Run satisfies EventConnector. It opens one WebSocket session, reads
|
||||
// frames until either the ctx is cancelled or the connection errors,
|
||||
// and returns. The Hub treats a nil return as "clean exit" (resets the
|
||||
// supervisor uptime check) and a non-nil return as "connection failed"
|
||||
// (steps up the reconnect backoff).
|
||||
//
|
||||
// The watchdog goroutine that closes the conn on ctx.Done is essential
|
||||
// for §4.4: without it, a healthy-but-silent WebSocket would keep the
|
||||
// goroutine parked in ReadMessage well past lease loss, and the next
|
||||
// replica would race ours for the same Lark events.
|
||||
// Run satisfies EventConnector. Opens one WebSocket session, reads
|
||||
// binary Frame envelopes until either the ctx is cancelled or the
|
||||
// connection errors, and returns. Nil return = clean exit; non-nil
|
||||
// return = connection failed (Hub steps up backoff).
|
||||
func (c *WSLongConnConnector) Run(ctx context.Context, inst db.LarkInstallation, emit EventEmitter) error {
|
||||
log := c.cfg.Logger.With(
|
||||
"installation_id", uuidString(inst.ID),
|
||||
@@ -169,23 +175,25 @@ func (c *WSLongConnConnector) Run(ctx context.Context, inst db.LarkInstallation,
|
||||
return fmt.Errorf("resolve ws endpoint: %w", err)
|
||||
}
|
||||
|
||||
// Server-pushed PingInterval beats the static default; this is the
|
||||
// SDK behaviour. A zero (server omitted the field) falls back to
|
||||
// our static default so we never degenerate to "ping every 0s".
|
||||
pingInterval := endpoint.PingInterval
|
||||
if pingInterval <= 0 {
|
||||
pingInterval = c.cfg.PingInterval
|
||||
}
|
||||
|
||||
conn, _, err := c.cfg.Dialer.DialContext(ctx, endpoint.URL, endpoint.Headers)
|
||||
if err != nil {
|
||||
return fmt.Errorf("dial ws: %w", err)
|
||||
}
|
||||
|
||||
// runCtx fans out cancellation to the watchdog + ping goroutines on
|
||||
// EVERY Run exit, not just on outer-ctx cancel. Without this, a
|
||||
// read error or an emit-side infra failure would unblock the read
|
||||
// loop but leave the ping goroutine ticking on the outer ctx — and
|
||||
// the deferred "<-pingDone" join would deadlock.
|
||||
// runCtx fans out cancellation to the watchdog + ping goroutines
|
||||
// on EVERY Run exit, not just on outer-ctx cancel. A read error or
|
||||
// emit-infra failure would otherwise leave the ping goroutine
|
||||
// ticking on the outer ctx — and the deferred join would deadlock.
|
||||
runCtx, runCancel := context.WithCancel(ctx)
|
||||
|
||||
// closeOnce guards the underlying conn.Close so the watchdog and
|
||||
// the normal exit path can both call it without double-Close
|
||||
// landing on a recycled FD. gorilla's Close itself is technically
|
||||
// idempotent but errors after the first call; we suppress that
|
||||
// noise here.
|
||||
var closeOnce sync.Once
|
||||
closeConn := func() {
|
||||
closeOnce.Do(func() {
|
||||
@@ -193,13 +201,9 @@ func (c *WSLongConnConnector) Run(ctx context.Context, inst db.LarkInstallation,
|
||||
})
|
||||
}
|
||||
|
||||
// Watchdog: when the supervisor cancels our ctx (lease lost,
|
||||
// installation revoked, server shutdown) — OR when the deferred
|
||||
// runCancel fires on any other Run exit path — close the socket so
|
||||
// the blocking ReadMessage below returns immediately instead of
|
||||
// waiting for a TCP-level error. The watchdog also exits naturally
|
||||
// if the read loop completes first (we close `done` on return), so
|
||||
// we never leak a goroutine.
|
||||
// Watchdog: ctx fires → close the socket so blocking ReadMessage
|
||||
// returns immediately. Also runs on any other exit path so we
|
||||
// never leak the goroutine.
|
||||
done := make(chan struct{})
|
||||
go func() {
|
||||
select {
|
||||
@@ -209,21 +213,16 @@ func (c *WSLongConnConnector) Run(ctx context.Context, inst db.LarkInstallation,
|
||||
}
|
||||
}()
|
||||
|
||||
// Ping loop: emits a WebSocket control ping at the configured
|
||||
// cadence so NATs and load balancers do not silently drop the
|
||||
// connection during long idle stretches. Lark's server responds
|
||||
// with a pong; the gorilla read pump consumes those transparently.
|
||||
// Bound to runCtx, not the outer ctx, so it shuts down on every
|
||||
// Run exit (not only outer-ctx cancellation).
|
||||
// writeMu serializes WriteMessage from the read loop (ACK send)
|
||||
// and the ping goroutine. gorilla/websocket forbids concurrent
|
||||
// writers; without this, ack + ping interleaving would corrupt
|
||||
// the binary frame stream.
|
||||
var writeMu sync.Mutex
|
||||
|
||||
// Ping loop: app-layer binary ping frames at the server's PingInterval.
|
||||
pingDone := make(chan struct{})
|
||||
go c.pingLoop(runCtx, conn, log, pingDone)
|
||||
go c.pingLoop(runCtx, conn, &writeMu, endpoint.ServiceID, pingInterval, log, pingDone)
|
||||
|
||||
// Exit choreography: cancel runCtx first (signals watchdog + ping
|
||||
// loop), close the socket (best-effort; the watchdog usually beat
|
||||
// us here), then join the ping goroutine. close(done) lets the
|
||||
// watchdog short-circuit if it was still waiting. Order matters —
|
||||
// joining pingDone before runCancel would deadlock when Run exits
|
||||
// on a read error with the outer ctx still live.
|
||||
defer func() {
|
||||
runCancel()
|
||||
closeConn()
|
||||
@@ -231,105 +230,153 @@ func (c *WSLongConnConnector) Run(ctx context.Context, inst db.LarkInstallation,
|
||||
<-pingDone
|
||||
}()
|
||||
|
||||
// Pong handler advances the read deadline whenever the server
|
||||
// answers our pings, so a healthy idle connection never trips the
|
||||
// deadline. gorilla's default pong handler is a no-op.
|
||||
conn.SetPongHandler(func(string) error {
|
||||
_ = conn.SetReadDeadline(c.cfg.Now().Add(c.cfg.ReadDeadline))
|
||||
return nil
|
||||
})
|
||||
|
||||
log.Info("lark ws connector: connected")
|
||||
log.Info("lark ws connector: connected",
|
||||
"service_id", endpoint.ServiceID,
|
||||
"ping_interval", pingInterval.String(),
|
||||
)
|
||||
|
||||
for {
|
||||
// Re-arm the read deadline before every Read so a stalled
|
||||
// connection eventually unblocks the read syscall and our loop
|
||||
// can decide whether to continue. The watchdog above is the
|
||||
// primary cancellation lever; the deadline is the secondary
|
||||
// defense for "stalled but not yet ctx-cancelled" cases.
|
||||
// connection eventually unblocks the syscall.
|
||||
if err := conn.SetReadDeadline(c.cfg.Now().Add(c.cfg.ReadDeadline)); err != nil {
|
||||
// Setting a deadline only fails if the conn has been
|
||||
// closed already. Treat it the same as a read error.
|
||||
if ctx.Err() != nil {
|
||||
return nil
|
||||
}
|
||||
return fmt.Errorf("set read deadline: %w", err)
|
||||
}
|
||||
|
||||
_, raw, err := conn.ReadMessage()
|
||||
msgType, raw, err := conn.ReadMessage()
|
||||
if err != nil {
|
||||
// If the ctx is cancelled, the watchdog closed the conn
|
||||
// and ReadMessage returns a "use of closed connection"
|
||||
// error. That is a clean exit, not a failure.
|
||||
if ctx.Err() != nil {
|
||||
log.Info("lark ws connector: ctx cancelled, read returned",
|
||||
"close_err", err.Error(),
|
||||
)
|
||||
return nil
|
||||
}
|
||||
// A normal close from Lark is also a clean exit; the Hub
|
||||
// will dial fresh on the next supervisor iteration after
|
||||
// backoff.
|
||||
if websocket.IsCloseError(err, websocket.CloseNormalClosure, websocket.CloseGoingAway) {
|
||||
log.Info("lark ws connector: server closed connection", "err", err.Error())
|
||||
return nil
|
||||
}
|
||||
return fmt.Errorf("read message: %w", err)
|
||||
}
|
||||
// Lark only sends binary frames. A text frame is a Lark-side
|
||||
// schema regression — log + drop to be safe.
|
||||
if msgType != websocket.BinaryMessage {
|
||||
log.Warn("lark ws connector: dropped non-binary frame",
|
||||
"type", msgType,
|
||||
"len", len(raw),
|
||||
)
|
||||
continue
|
||||
}
|
||||
|
||||
msg, ok, derr := c.cfg.FrameDecoder.Decode(raw, inst)
|
||||
if derr != nil {
|
||||
// Decoder errors are per-frame; logging + drop is the
|
||||
// right policy. Tearing down the whole connection because
|
||||
// one frame failed to parse would amplify Lark-side
|
||||
// schema regressions into a reconnect storm.
|
||||
log.Warn("lark ws connector: frame decode failed",
|
||||
"err", derr.Error(),
|
||||
frame, err := UnmarshalFrame(raw)
|
||||
if err != nil {
|
||||
log.Warn("lark ws connector: frame protobuf decode failed",
|
||||
"err", err.Error(),
|
||||
"raw_len", len(raw),
|
||||
)
|
||||
continue
|
||||
}
|
||||
if !ok {
|
||||
// Heartbeat / control / not a message event. The decoder
|
||||
// is responsible for deciding what counts; we just drop.
|
||||
|
||||
// Control frames carry ping / pong / config updates. We
|
||||
// only have to act on pings (reply with a pong); pongs and
|
||||
// config payloads are accepted silently.
|
||||
if frame.Method == FrameMethodControl {
|
||||
if frame.HeaderValue(FrameHeaderTypeKey) == FrameHeaderTypePing {
|
||||
if werr := c.writeFrame(&writeMu, conn, NewPongFrame(endpoint.ServiceID)); werr != nil {
|
||||
log.Warn("lark ws connector: pong write failed", "err", werr.Error())
|
||||
}
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
if _, err := emit(ctx, msg); err != nil {
|
||||
// Infra failures from the Dispatcher (e.g. DB down) are
|
||||
// surfaced here. Returning the error tears the connection
|
||||
// down so the Hub backs off; staying alive would put us
|
||||
// in a hot loop swallowing events while the DB is
|
||||
// unreachable, which loses messages with no upstream
|
||||
// signal.
|
||||
// Data frames: hand the JSON payload to the decoder, emit if
|
||||
// it resolved to a message, and ACK back to the server.
|
||||
msg, ok, derr := c.cfg.FrameDecoder.Decode(frame.Payload, inst)
|
||||
if derr != nil {
|
||||
log.Warn("lark ws connector: frame decode failed",
|
||||
"err", derr.Error(),
|
||||
"payload_len", len(frame.Payload),
|
||||
)
|
||||
// A decode failure still gets a 200 ACK: the message is
|
||||
// valid wire-wise, we just can't act on it. NACKing would
|
||||
// trigger a Lark-side retry storm of a payload we've
|
||||
// already proven we can't parse.
|
||||
if werr := c.writeFrame(&writeMu, conn, NewAckFrame(frame, true)); werr != nil {
|
||||
log.Warn("lark ws connector: ack-after-decode-error write failed", "err", werr.Error())
|
||||
return fmt.Errorf("write ack: %w", werr)
|
||||
}
|
||||
continue
|
||||
}
|
||||
if !ok {
|
||||
// Heartbeat / unhandled event type. ACK 200 so the server
|
||||
// stops sending it; the decoder owns the "what we handle"
|
||||
// policy.
|
||||
if werr := c.writeFrame(&writeMu, conn, NewAckFrame(frame, true)); werr != nil {
|
||||
log.Warn("lark ws connector: ack-after-drop write failed", "err", werr.Error())
|
||||
return fmt.Errorf("write ack: %w", werr)
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
_, emitErr := emit(ctx, msg)
|
||||
if emitErr != nil {
|
||||
// Infra failure from Dispatcher (DB down, etc.). NACK so
|
||||
// Lark retries this event on a healthy replica; then
|
||||
// return so the Hub backs off and reconnects.
|
||||
if werr := c.writeFrame(&writeMu, conn, NewAckFrame(frame, false)); werr != nil {
|
||||
log.Warn("lark ws connector: nack write failed", "err", werr.Error())
|
||||
}
|
||||
log.Error("lark ws connector: emit infra error",
|
||||
"event_id", msg.EventID,
|
||||
"err", err.Error(),
|
||||
"err", emitErr.Error(),
|
||||
)
|
||||
return fmt.Errorf("dispatch: %w", err)
|
||||
return fmt.Errorf("dispatch: %w", emitErr)
|
||||
}
|
||||
if werr := c.writeFrame(&writeMu, conn, NewAckFrame(frame, true)); werr != nil {
|
||||
log.Warn("lark ws connector: ack write failed", "err", werr.Error())
|
||||
return fmt.Errorf("write ack: %w", werr)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// pingLoop sends a periodic WebSocket ping. Exits when ctx fires; the
|
||||
// done channel lets the parent join cleanly so we never leak this
|
||||
// goroutine past Run.
|
||||
func (c *WSLongConnConnector) pingLoop(ctx context.Context, conn WSConn, log *slog.Logger, done chan<- struct{}) {
|
||||
// writeFrame serializes a Frame and writes it as a binary WebSocket
|
||||
// message under the connector's write mutex. Caller MUST NOT hold
|
||||
// writeMu when calling.
|
||||
func (c *WSLongConnConnector) writeFrame(mu *sync.Mutex, conn WSConn, f *Frame) error {
|
||||
payload := f.Marshal()
|
||||
mu.Lock()
|
||||
defer mu.Unlock()
|
||||
deadline := c.cfg.Now().Add(c.cfg.WriteTimeout)
|
||||
if err := conn.SetWriteDeadline(deadline); err != nil {
|
||||
return err
|
||||
}
|
||||
return conn.WriteMessage(websocket.BinaryMessage, payload)
|
||||
}
|
||||
|
||||
// pingLoop sends a periodic app-layer ping frame on the cadence Lark
|
||||
// asked for. The previous implementation used WebSocket protocol PING
|
||||
// (WriteControl), which the SDK source confirms Lark ignores.
|
||||
func (c *WSLongConnConnector) pingLoop(ctx context.Context, conn WSConn, writeMu *sync.Mutex, serviceID int32, interval time.Duration, log *slog.Logger, done chan<- struct{}) {
|
||||
defer close(done)
|
||||
t := time.NewTicker(c.cfg.PingInterval)
|
||||
if interval <= 0 {
|
||||
// A zero / negative interval would tick infinitely; bail out
|
||||
// quietly. We logged the chosen interval at connect time.
|
||||
<-ctx.Done()
|
||||
return
|
||||
}
|
||||
t := time.NewTicker(interval)
|
||||
defer t.Stop()
|
||||
for {
|
||||
select {
|
||||
case <-ctx.Done():
|
||||
return
|
||||
case <-t.C:
|
||||
deadline := c.cfg.Now().Add(c.cfg.WriteTimeout)
|
||||
if err := conn.WriteControl(websocket.PingMessage, nil, deadline); err != nil {
|
||||
// A write failure typically means the conn has died;
|
||||
// the read loop will exit on its next iteration. We
|
||||
// just stop pinging — closing the conn here would
|
||||
// race with the read loop's own cleanup.
|
||||
if err := c.writeFrame(writeMu, conn, NewPingFrame(serviceID)); err != nil {
|
||||
log.Warn("lark ws connector: ping write failed", "err", err.Error())
|
||||
// Don't tear down here — the read loop will exit on
|
||||
// its own when the conn dies. Closing here would race
|
||||
// with the read loop's own cleanup.
|
||||
return
|
||||
}
|
||||
}
|
||||
@@ -337,63 +384,60 @@ func (c *WSLongConnConnector) pingLoop(ctx context.Context, conn WSConn, log *sl
|
||||
}
|
||||
|
||||
// WSDialer is the dialer surface this connector consumes. *websocket.Dialer
|
||||
// satisfies it directly (via DialContext); tests inject a fake that
|
||||
// returns a programmable WSConn.
|
||||
// satisfies it directly (via DialContext); tests inject a fake.
|
||||
type WSDialer interface {
|
||||
DialContext(ctx context.Context, urlStr string, requestHeader http.Header) (WSConn, *http.Response, error)
|
||||
}
|
||||
|
||||
// WSConn is the subset of *websocket.Conn this connector uses. Pulled
|
||||
// out so the connector can be tested without a live socket — the test
|
||||
// double implements only the methods we touch.
|
||||
// WSConn is the subset of *websocket.Conn this connector uses.
|
||||
type WSConn interface {
|
||||
ReadMessage() (messageType int, p []byte, err error)
|
||||
WriteControl(messageType int, data []byte, deadline time.Time) error
|
||||
WriteMessage(messageType int, data []byte) error
|
||||
SetReadDeadline(t time.Time) error
|
||||
SetPongHandler(h func(appData string) error)
|
||||
SetWriteDeadline(t time.Time) error
|
||||
Close() error
|
||||
}
|
||||
|
||||
// EndpointFetcher resolves the per-installation WS URL + auth headers.
|
||||
// Splitting this from the Dialer keeps the dialer dumb (just opens a
|
||||
// URL) while the fetcher owns the Lark-specific connection-token
|
||||
// dance against open.feishu.cn.
|
||||
// EndpointFetcher resolves the per-installation bootstrap response.
|
||||
// The implementation is responsible for the POST /callback/ws/endpoint
|
||||
// call and surfacing the server-pushed ClientConfig.
|
||||
type EndpointFetcher interface {
|
||||
Endpoint(ctx context.Context, creds InstallationCredentials) (WSEndpoint, error)
|
||||
}
|
||||
|
||||
// WSEndpoint is the resolved transport target.
|
||||
// WSEndpoint is the resolved transport target plus the server-pushed
|
||||
// runtime configuration the connector needs to honor (ping cadence,
|
||||
// reconnect hints). ServiceID is parsed out of the wss URL's
|
||||
// `service_id` query parameter — it identifies which Lark backend
|
||||
// service ID our outbound frames belong to.
|
||||
type WSEndpoint struct {
|
||||
URL string
|
||||
Headers http.Header
|
||||
URL string
|
||||
Headers http.Header
|
||||
ServiceID int32
|
||||
PingInterval time.Duration
|
||||
ReconnectInterval time.Duration
|
||||
ReconnectNonce time.Duration
|
||||
ReconnectCount int
|
||||
}
|
||||
|
||||
// FrameDecoder turns one raw WebSocket message into either an
|
||||
// InboundMessage (ok=true) or a no-op (ok=false). The connector treats
|
||||
// a decoder error as per-frame: log + drop, do not tear down the
|
||||
// connection. The Lark wire format is currently in flux (the
|
||||
// open-platform protocol mixes JSON envelopes and pb payloads
|
||||
// depending on api version), so the decoder is kept behind this
|
||||
// interface to insulate the transport from the wire shape.
|
||||
// FrameDecoder turns the JSON payload of a data Frame into either an
|
||||
// InboundMessage (ok=true) or a no-op (ok=false). The connector
|
||||
// treats a decoder error as per-frame: log + drop, do not tear down
|
||||
// the connection. The decoder receives the JSON payload bytes — the
|
||||
// outer binary Frame envelope is stripped by the connector.
|
||||
type FrameDecoder interface {
|
||||
Decode(raw []byte, inst db.LarkInstallation) (msg InboundMessage, ok bool, err error)
|
||||
Decode(payload []byte, inst db.LarkInstallation) (msg InboundMessage, ok bool, err error)
|
||||
}
|
||||
|
||||
// CredentialsProvider supplies the plaintext InstallationCredentials a
|
||||
// connector needs for its EndpointFetcher call. The default
|
||||
// implementation wraps InstallationService.DecryptAppSecret so the
|
||||
// plaintext app_secret lives in memory only while a Run is in flight.
|
||||
// connector needs for its EndpointFetcher call.
|
||||
type CredentialsProvider interface {
|
||||
Credentials(ctx context.Context, inst db.LarkInstallation) (InstallationCredentials, error)
|
||||
}
|
||||
|
||||
// CredentialsProviderFunc adapts a free function to the
|
||||
// CredentialsProvider interface — useful at wiring sites where the
|
||||
// dependency graph (InstallationService → secretbox.Box) is already
|
||||
// established.
|
||||
// CredentialsProviderFunc adapts a free function.
|
||||
type CredentialsProviderFunc func(ctx context.Context, inst db.LarkInstallation) (InstallationCredentials, error)
|
||||
|
||||
// Credentials implements CredentialsProvider.
|
||||
func (f CredentialsProviderFunc) Credentials(ctx context.Context, inst db.LarkInstallation) (InstallationCredentials, error) {
|
||||
return f(ctx, inst)
|
||||
}
|
||||
@@ -401,30 +445,22 @@ func (f CredentialsProviderFunc) Credentials(ctx context.Context, inst db.LarkIn
|
||||
// EndpointFetcherFunc adapts a plain function to EndpointFetcher.
|
||||
type EndpointFetcherFunc func(ctx context.Context, creds InstallationCredentials) (WSEndpoint, error)
|
||||
|
||||
// Endpoint implements EndpointFetcher.
|
||||
func (f EndpointFetcherFunc) Endpoint(ctx context.Context, creds InstallationCredentials) (WSEndpoint, error) {
|
||||
return f(ctx, creds)
|
||||
}
|
||||
|
||||
// FrameDecoderFunc adapts a plain function to FrameDecoder.
|
||||
type FrameDecoderFunc func(raw []byte, inst db.LarkInstallation) (InboundMessage, bool, error)
|
||||
type FrameDecoderFunc func(payload []byte, inst db.LarkInstallation) (InboundMessage, bool, error)
|
||||
|
||||
// Decode implements FrameDecoder.
|
||||
func (f FrameDecoderFunc) Decode(raw []byte, inst db.LarkInstallation) (InboundMessage, bool, error) {
|
||||
return f(raw, inst)
|
||||
func (f FrameDecoderFunc) Decode(payload []byte, inst db.LarkInstallation) (InboundMessage, bool, error) {
|
||||
return f(payload, inst)
|
||||
}
|
||||
|
||||
// GorillaDialer is the production WSDialer. It wraps the supplied
|
||||
// *websocket.Dialer (defaulting to a fresh dialer with a bounded
|
||||
// HandshakeTimeout if nil) and converts the returned *websocket.Conn
|
||||
// into the WSConn interface this package uses for testability.
|
||||
// GorillaDialer is the production WSDialer.
|
||||
type GorillaDialer struct {
|
||||
Dialer *websocket.Dialer
|
||||
}
|
||||
|
||||
// NewGorillaDialer returns a WSDialer with sensible production
|
||||
// defaults. HandshakeTimeout is bounded so a slow / unreachable Lark
|
||||
// host does not block the supervisor for the full TCP timeout.
|
||||
func NewGorillaDialer() *GorillaDialer {
|
||||
return &GorillaDialer{
|
||||
Dialer: &websocket.Dialer{
|
||||
@@ -433,7 +469,6 @@ func NewGorillaDialer() *GorillaDialer {
|
||||
}
|
||||
}
|
||||
|
||||
// DialContext implements WSDialer.
|
||||
func (g *GorillaDialer) DialContext(ctx context.Context, urlStr string, requestHeader http.Header) (WSConn, *http.Response, error) {
|
||||
d := g.Dialer
|
||||
if d == nil {
|
||||
|
||||
@@ -16,26 +16,30 @@ import (
|
||||
)
|
||||
|
||||
// fakeWSConn is a programmable WSConn driven by tests. ReadMessage
|
||||
// blocks until either Push delivers a frame or Close is invoked — this
|
||||
// is how we simulate the "blocked in TCP read" condition the watchdog
|
||||
// has to break.
|
||||
// blocks until either Push delivers a frame or Close is invoked —
|
||||
// this is how we simulate the "blocked in TCP read" condition the
|
||||
// watchdog has to break.
|
||||
//
|
||||
// Frames sent via WriteMessage are buffered into writes[] so tests
|
||||
// can assert on outbound traffic (ACK, ping) without race conditions.
|
||||
type fakeWSConn struct {
|
||||
mu sync.Mutex
|
||||
frames chan []byte
|
||||
closeOnce sync.Once
|
||||
closed chan struct{}
|
||||
pongHandler func(string) error
|
||||
pings int32
|
||||
writeErr error // optional injection for WriteControl
|
||||
mu sync.Mutex
|
||||
writes [][]byte
|
||||
|
||||
frames chan []byte
|
||||
closeOnce sync.Once
|
||||
closed chan struct{}
|
||||
writeErr error // optional injection for WriteMessage
|
||||
}
|
||||
|
||||
func newFakeWSConn() *fakeWSConn {
|
||||
return &fakeWSConn{
|
||||
frames: make(chan []byte, 8),
|
||||
frames: make(chan []byte, 16),
|
||||
closed: make(chan struct{}),
|
||||
}
|
||||
}
|
||||
|
||||
// Push enqueues a binary frame for the next ReadMessage call.
|
||||
func (f *fakeWSConn) Push(b []byte) {
|
||||
select {
|
||||
case f.frames <- b:
|
||||
@@ -49,32 +53,26 @@ func (f *fakeWSConn) ReadMessage() (int, []byte, error) {
|
||||
if !ok {
|
||||
return 0, nil, io.EOF
|
||||
}
|
||||
return websocket.TextMessage, b, nil
|
||||
return websocket.BinaryMessage, b, nil
|
||||
case <-f.closed:
|
||||
return 0, nil, &websocket.CloseError{Code: websocket.CloseAbnormalClosure, Text: "fake closed"}
|
||||
}
|
||||
}
|
||||
|
||||
func (f *fakeWSConn) WriteControl(messageType int, data []byte, deadline time.Time) error {
|
||||
func (f *fakeWSConn) WriteMessage(messageType int, data []byte) error {
|
||||
f.mu.Lock()
|
||||
err := f.writeErr
|
||||
f.mu.Unlock()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if messageType == websocket.PingMessage {
|
||||
atomic.AddInt32(&f.pings, 1)
|
||||
defer f.mu.Unlock()
|
||||
if f.writeErr != nil {
|
||||
return f.writeErr
|
||||
}
|
||||
cp := make([]byte, len(data))
|
||||
copy(cp, data)
|
||||
f.writes = append(f.writes, cp)
|
||||
return nil
|
||||
}
|
||||
|
||||
func (f *fakeWSConn) SetReadDeadline(t time.Time) error { return nil }
|
||||
|
||||
func (f *fakeWSConn) SetPongHandler(h func(string) error) {
|
||||
f.mu.Lock()
|
||||
f.pongHandler = h
|
||||
f.mu.Unlock()
|
||||
}
|
||||
func (f *fakeWSConn) SetReadDeadline(t time.Time) error { return nil }
|
||||
func (f *fakeWSConn) SetWriteDeadline(t time.Time) error { return nil }
|
||||
|
||||
func (f *fakeWSConn) Close() error {
|
||||
f.closeOnce.Do(func() {
|
||||
@@ -83,7 +81,15 @@ func (f *fakeWSConn) Close() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (f *fakeWSConn) pingCount() int { return int(atomic.LoadInt32(&f.pings)) }
|
||||
func (f *fakeWSConn) snapshot() [][]byte {
|
||||
f.mu.Lock()
|
||||
defer f.mu.Unlock()
|
||||
out := make([][]byte, len(f.writes))
|
||||
for i, w := range f.writes {
|
||||
out[i] = append([]byte(nil), w...)
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
// fakeWSDialer hands back a pre-built fakeWSConn so tests can drive
|
||||
// frames + observe closes deterministically.
|
||||
@@ -99,16 +105,21 @@ func (d *fakeWSDialer) DialContext(ctx context.Context, urlStr string, h http.He
|
||||
return d.conn, nil, nil
|
||||
}
|
||||
|
||||
func quietConnector(t *testing.T, conn *fakeWSConn, decoder FrameDecoder) *WSLongConnConnector {
|
||||
// quietConnector wires a connector with a deterministic decoder + the
|
||||
// fakeWSConn. Caller controls the decoder so each test can assert
|
||||
// per-payload behaviour.
|
||||
func quietConnector(t *testing.T, conn *fakeWSConn, decoder FrameDecoder, pingInterval time.Duration) *WSLongConnConnector {
|
||||
t.Helper()
|
||||
c, err := NewWSLongConnConnector(WSConnectorConfig{
|
||||
Dialer: &fakeWSDialer{conn: conn},
|
||||
EndpointFetcher: EndpointFetcherFunc(func(context.Context, InstallationCredentials) (WSEndpoint, error) { return WSEndpoint{URL: "wss://test/ignored"}, nil }),
|
||||
EndpointFetcher: EndpointFetcherFunc(func(context.Context, InstallationCredentials) (WSEndpoint, error) {
|
||||
return WSEndpoint{URL: "wss://test/ignored", ServiceID: 7, PingInterval: pingInterval}, nil
|
||||
}),
|
||||
FrameDecoder: decoder,
|
||||
CredentialsProvider: CredentialsProviderFunc(func(context.Context, db.LarkInstallation) (InstallationCredentials, error) {
|
||||
return InstallationCredentials{AppID: "test_app", AppSecret: "secret"}, nil
|
||||
}),
|
||||
PingInterval: 10 * time.Millisecond,
|
||||
PingInterval: pingInterval,
|
||||
ReadDeadline: time.Second,
|
||||
WriteTimeout: time.Second,
|
||||
Logger: slog.New(slog.NewTextHandler(io.Discard, nil)),
|
||||
@@ -119,13 +130,28 @@ func quietConnector(t *testing.T, conn *fakeWSConn, decoder FrameDecoder) *WSLon
|
||||
return c
|
||||
}
|
||||
|
||||
// pushDataFrame writes a Lark long-conn data Frame envelope wrapping
|
||||
// the supplied JSON payload onto the conn's read queue.
|
||||
func pushDataFrame(conn *fakeWSConn, payload []byte, messageID string) {
|
||||
f := &Frame{
|
||||
Method: FrameMethodData,
|
||||
Service: 7,
|
||||
Headers: []FrameHeader{
|
||||
{Key: FrameHeaderTypeKey, Value: FrameHeaderTypeEvent},
|
||||
{Key: FrameHeaderMessageIDKey, Value: messageID},
|
||||
},
|
||||
Payload: payload,
|
||||
}
|
||||
conn.Push(f.Marshal())
|
||||
}
|
||||
|
||||
func TestWSConnectorRunReturnsOnCtxCancelEvenWhenReadIsBlocked(t *testing.T) {
|
||||
t.Parallel()
|
||||
conn := newFakeWSConn()
|
||||
decoder := FrameDecoderFunc(func([]byte, db.LarkInstallation) (InboundMessage, bool, error) {
|
||||
return InboundMessage{}, false, nil
|
||||
})
|
||||
c := quietConnector(t, conn, decoder)
|
||||
c := quietConnector(t, conn, decoder, 10*time.Millisecond)
|
||||
|
||||
ctx, cancel := context.WithCancel(context.Background())
|
||||
done := make(chan error, 1)
|
||||
@@ -151,20 +177,25 @@ func TestWSConnectorRunReturnsOnCtxCancelEvenWhenReadIsBlocked(t *testing.T) {
|
||||
}
|
||||
}
|
||||
|
||||
func TestWSConnectorEmitsDecodedFrames(t *testing.T) {
|
||||
// TestWSConnectorEmitsDecodedFramesAndAcks verifies that:
|
||||
// - data frames whose decoder returns ok=true reach emit;
|
||||
// - every data frame yields an ACK Frame written back to the conn;
|
||||
// - heartbeat / non-event payloads are dropped but still ACKed (so
|
||||
// the server stops resending them).
|
||||
func TestWSConnectorEmitsDecodedFramesAndAcks(t *testing.T) {
|
||||
t.Parallel()
|
||||
conn := newFakeWSConn()
|
||||
decoder := FrameDecoderFunc(func(raw []byte, _ db.LarkInstallation) (InboundMessage, bool, error) {
|
||||
if string(raw) == "heartbeat" {
|
||||
decoder := FrameDecoderFunc(func(payload []byte, _ db.LarkInstallation) (InboundMessage, bool, error) {
|
||||
if string(payload) == "heartbeat" {
|
||||
return InboundMessage{}, false, nil
|
||||
}
|
||||
return InboundMessage{
|
||||
EventID: string(raw),
|
||||
EventID: string(payload),
|
||||
AppID: "test_app",
|
||||
MessageID: "msg-" + string(raw),
|
||||
MessageID: "msg-" + string(payload),
|
||||
}, true, nil
|
||||
})
|
||||
c := quietConnector(t, conn, decoder)
|
||||
c := quietConnector(t, conn, decoder, time.Hour) // disable ping cadence
|
||||
|
||||
var emitted []InboundMessage
|
||||
var emitMu sync.Mutex
|
||||
@@ -183,11 +214,10 @@ func TestWSConnectorEmitsDecodedFrames(t *testing.T) {
|
||||
done <- c.Run(ctx, db.LarkInstallation{AppID: "test_app"}, emit)
|
||||
}()
|
||||
|
||||
conn.Push([]byte("evt-1"))
|
||||
conn.Push([]byte("heartbeat"))
|
||||
conn.Push([]byte("evt-2"))
|
||||
pushDataFrame(conn, []byte("evt-1"), "m1")
|
||||
pushDataFrame(conn, []byte("heartbeat"), "m2")
|
||||
pushDataFrame(conn, []byte("evt-2"), "m3")
|
||||
|
||||
// Allow the read loop to process all three frames.
|
||||
deadline := time.After(2 * time.Second)
|
||||
for {
|
||||
emitMu.Lock()
|
||||
@@ -210,26 +240,192 @@ func TestWSConnectorEmitsDecodedFrames(t *testing.T) {
|
||||
t.Fatal("Run did not return after cancel")
|
||||
}
|
||||
|
||||
if got := emitted[0].EventID; got != "evt-1" {
|
||||
t.Errorf("first emit EventID = %q, want evt-1", got)
|
||||
if emitted[0].EventID != "evt-1" || emitted[1].EventID != "evt-2" {
|
||||
t.Errorf("emit ordering wrong: %+v", emitted)
|
||||
}
|
||||
if got := emitted[1].EventID; got != "evt-2" {
|
||||
t.Errorf("second emit EventID = %q, want evt-2", got)
|
||||
|
||||
// Every data frame should have produced an ACK frame on the wire
|
||||
// regardless of decode outcome (drop or emit).
|
||||
writes := conn.snapshot()
|
||||
if len(writes) < 3 {
|
||||
t.Fatalf("expected >=3 outbound ACK frames, got %d", len(writes))
|
||||
}
|
||||
for i, w := range writes[:3] {
|
||||
f, err := UnmarshalFrame(w)
|
||||
if err != nil {
|
||||
t.Fatalf("write[%d] unmarshal: %v", i, err)
|
||||
}
|
||||
if f.Method != FrameMethodData {
|
||||
t.Errorf("ack[%d] Method = %d; want Data", i, f.Method)
|
||||
}
|
||||
if f.HeaderValue(FrameHeaderTypeKey) != FrameHeaderTypeEvent {
|
||||
t.Errorf("ack[%d] type header = %q", i, f.HeaderValue(FrameHeaderTypeKey))
|
||||
}
|
||||
if len(f.Payload) == 0 || !contains(string(f.Payload), `"code":200`) {
|
||||
t.Errorf("ack[%d] payload missing code=200: %s", i, string(f.Payload))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestWSConnectorDecoderErrorDoesNotBreakLoop(t *testing.T) {
|
||||
func TestWSConnectorRespondsToServerPingWithPong(t *testing.T) {
|
||||
t.Parallel()
|
||||
conn := newFakeWSConn()
|
||||
decoder := FrameDecoderFunc(func([]byte, db.LarkInstallation) (InboundMessage, bool, error) {
|
||||
return InboundMessage{}, false, nil
|
||||
})
|
||||
c := quietConnector(t, conn, decoder, time.Hour)
|
||||
|
||||
ctx, cancel := context.WithCancel(context.Background())
|
||||
defer cancel()
|
||||
|
||||
done := make(chan error, 1)
|
||||
go func() {
|
||||
done <- c.Run(ctx, db.LarkInstallation{AppID: "test_app"}, func(context.Context, InboundMessage) (DispatchResult, error) {
|
||||
return DispatchResult{}, nil
|
||||
})
|
||||
}()
|
||||
|
||||
// Server-initiated ping (control frame, type=ping).
|
||||
pingFrame := &Frame{
|
||||
Method: FrameMethodControl,
|
||||
Service: 7,
|
||||
Headers: []FrameHeader{{Key: FrameHeaderTypeKey, Value: FrameHeaderTypePing}},
|
||||
}
|
||||
conn.Push(pingFrame.Marshal())
|
||||
|
||||
// Allow the read loop to react.
|
||||
deadline := time.After(2 * time.Second)
|
||||
for {
|
||||
writes := conn.snapshot()
|
||||
if len(writes) >= 1 {
|
||||
f, err := UnmarshalFrame(writes[0])
|
||||
if err != nil {
|
||||
t.Fatalf("pong unmarshal: %v", err)
|
||||
}
|
||||
if f.HeaderValue(FrameHeaderTypeKey) != FrameHeaderTypePong {
|
||||
t.Errorf("response type = %q; want pong", f.HeaderValue(FrameHeaderTypeKey))
|
||||
}
|
||||
if f.Service != 7 {
|
||||
t.Errorf("response Service = %d; want 7", f.Service)
|
||||
}
|
||||
break
|
||||
}
|
||||
select {
|
||||
case <-deadline:
|
||||
t.Fatal("connector did not pong in 2s")
|
||||
case <-time.After(5 * time.Millisecond):
|
||||
}
|
||||
}
|
||||
|
||||
cancel()
|
||||
<-done
|
||||
}
|
||||
|
||||
func TestWSConnectorEmitInfraErrorSendsNackAndReturns(t *testing.T) {
|
||||
t.Parallel()
|
||||
conn := newFakeWSConn()
|
||||
decoder := FrameDecoderFunc(func([]byte, db.LarkInstallation) (InboundMessage, bool, error) {
|
||||
return InboundMessage{EventID: "x"}, true, nil
|
||||
})
|
||||
c := quietConnector(t, conn, decoder, time.Hour)
|
||||
|
||||
infra := errors.New("dispatcher infra failure")
|
||||
ctx, cancel := context.WithCancel(context.Background())
|
||||
defer cancel()
|
||||
|
||||
done := make(chan error, 1)
|
||||
go func() {
|
||||
done <- c.Run(ctx, db.LarkInstallation{AppID: "test_app"}, func(context.Context, InboundMessage) (DispatchResult, error) {
|
||||
return DispatchResult{}, infra
|
||||
})
|
||||
}()
|
||||
|
||||
pushDataFrame(conn, []byte("triggers-infra"), "m-infra")
|
||||
|
||||
select {
|
||||
case err := <-done:
|
||||
if err == nil || !errors.Is(err, infra) {
|
||||
t.Fatalf("expected Run to wrap infra error, got %v", err)
|
||||
}
|
||||
case <-time.After(2 * time.Second):
|
||||
t.Fatal("Run did not return after infra error")
|
||||
}
|
||||
|
||||
// NACK should have been written on the way out (code=500).
|
||||
writes := conn.snapshot()
|
||||
found := false
|
||||
for _, w := range writes {
|
||||
f, err := UnmarshalFrame(w)
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
if f.Method == FrameMethodData && contains(string(f.Payload), `"code":500`) {
|
||||
found = true
|
||||
break
|
||||
}
|
||||
}
|
||||
if !found {
|
||||
t.Errorf("expected NACK (code=500) frame written on infra error path")
|
||||
}
|
||||
}
|
||||
|
||||
func TestWSConnectorSendsAppLayerPings(t *testing.T) {
|
||||
t.Parallel()
|
||||
conn := newFakeWSConn()
|
||||
decoder := FrameDecoderFunc(func([]byte, db.LarkInstallation) (InboundMessage, bool, error) {
|
||||
return InboundMessage{}, false, nil
|
||||
})
|
||||
c := quietConnector(t, conn, decoder, 10*time.Millisecond)
|
||||
|
||||
ctx, cancel := context.WithCancel(context.Background())
|
||||
defer cancel()
|
||||
|
||||
done := make(chan error, 1)
|
||||
go func() {
|
||||
done <- c.Run(ctx, db.LarkInstallation{AppID: "test_app"}, func(context.Context, InboundMessage) (DispatchResult, error) {
|
||||
return DispatchResult{}, nil
|
||||
})
|
||||
}()
|
||||
|
||||
deadline := time.After(500 * time.Millisecond)
|
||||
for {
|
||||
writes := conn.snapshot()
|
||||
pings := 0
|
||||
for _, w := range writes {
|
||||
f, err := UnmarshalFrame(w)
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
if f.Method == FrameMethodControl && f.HeaderValue(FrameHeaderTypeKey) == FrameHeaderTypePing {
|
||||
pings++
|
||||
}
|
||||
}
|
||||
if pings >= 3 {
|
||||
break
|
||||
}
|
||||
select {
|
||||
case <-deadline:
|
||||
t.Fatalf("expected >=3 app-layer pings, got %d writes total", len(writes))
|
||||
case <-time.After(5 * time.Millisecond):
|
||||
}
|
||||
}
|
||||
|
||||
cancel()
|
||||
<-done
|
||||
}
|
||||
|
||||
func TestWSConnectorDecoderErrorAcksAndContinues(t *testing.T) {
|
||||
t.Parallel()
|
||||
conn := newFakeWSConn()
|
||||
decodeCount := int32(0)
|
||||
decoder := FrameDecoderFunc(func(raw []byte, _ db.LarkInstallation) (InboundMessage, bool, error) {
|
||||
decoder := FrameDecoderFunc(func(payload []byte, _ db.LarkInstallation) (InboundMessage, bool, error) {
|
||||
n := atomic.AddInt32(&decodeCount, 1)
|
||||
if n == 1 {
|
||||
return InboundMessage{}, false, errors.New("synthetic decode failure")
|
||||
}
|
||||
return InboundMessage{EventID: "good"}, true, nil
|
||||
})
|
||||
c := quietConnector(t, conn, decoder)
|
||||
c := quietConnector(t, conn, decoder, time.Hour)
|
||||
|
||||
emits := make(chan InboundMessage, 1)
|
||||
emit := func(_ context.Context, msg InboundMessage) (DispatchResult, error) {
|
||||
@@ -244,8 +440,8 @@ func TestWSConnectorDecoderErrorDoesNotBreakLoop(t *testing.T) {
|
||||
done <- c.Run(ctx, db.LarkInstallation{AppID: "test_app"}, emit)
|
||||
}()
|
||||
|
||||
conn.Push([]byte("bad"))
|
||||
conn.Push([]byte("good"))
|
||||
pushDataFrame(conn, []byte("bad"), "mb")
|
||||
pushDataFrame(conn, []byte("good"), "mg")
|
||||
|
||||
select {
|
||||
case msg := <-emits:
|
||||
@@ -260,44 +456,13 @@ func TestWSConnectorDecoderErrorDoesNotBreakLoop(t *testing.T) {
|
||||
<-done
|
||||
}
|
||||
|
||||
func TestWSConnectorEmitInfraErrorReturnsFromRun(t *testing.T) {
|
||||
t.Parallel()
|
||||
conn := newFakeWSConn()
|
||||
decoder := FrameDecoderFunc(func([]byte, db.LarkInstallation) (InboundMessage, bool, error) {
|
||||
return InboundMessage{EventID: "x"}, true, nil
|
||||
})
|
||||
c := quietConnector(t, conn, decoder)
|
||||
|
||||
infra := errors.New("dispatcher infra failure")
|
||||
ctx, cancel := context.WithCancel(context.Background())
|
||||
defer cancel()
|
||||
|
||||
done := make(chan error, 1)
|
||||
go func() {
|
||||
done <- c.Run(ctx, db.LarkInstallation{AppID: "test_app"}, func(context.Context, InboundMessage) (DispatchResult, error) {
|
||||
return DispatchResult{}, infra
|
||||
})
|
||||
}()
|
||||
|
||||
conn.Push([]byte("triggers-infra"))
|
||||
|
||||
select {
|
||||
case err := <-done:
|
||||
if err == nil || !errors.Is(err, infra) {
|
||||
t.Fatalf("expected Run to wrap infra error, got %v", err)
|
||||
}
|
||||
case <-time.After(2 * time.Second):
|
||||
t.Fatal("Run did not return after infra error")
|
||||
}
|
||||
}
|
||||
|
||||
func TestWSConnectorReadErrorReturnsToHub(t *testing.T) {
|
||||
t.Parallel()
|
||||
conn := newFakeWSConn()
|
||||
decoder := FrameDecoderFunc(func([]byte, db.LarkInstallation) (InboundMessage, bool, error) {
|
||||
return InboundMessage{}, false, nil
|
||||
})
|
||||
c := quietConnector(t, conn, decoder)
|
||||
c := quietConnector(t, conn, decoder, time.Hour)
|
||||
|
||||
ctx := context.Background()
|
||||
done := make(chan error, 1)
|
||||
@@ -322,42 +487,6 @@ func TestWSConnectorReadErrorReturnsToHub(t *testing.T) {
|
||||
}
|
||||
}
|
||||
|
||||
func TestWSConnectorSendsPings(t *testing.T) {
|
||||
t.Parallel()
|
||||
conn := newFakeWSConn()
|
||||
decoder := FrameDecoderFunc(func([]byte, db.LarkInstallation) (InboundMessage, bool, error) {
|
||||
return InboundMessage{}, false, nil
|
||||
})
|
||||
c := quietConnector(t, conn, decoder)
|
||||
|
||||
ctx, cancel := context.WithCancel(context.Background())
|
||||
defer cancel()
|
||||
|
||||
done := make(chan error, 1)
|
||||
go func() {
|
||||
done <- c.Run(ctx, db.LarkInstallation{AppID: "test_app"}, func(context.Context, InboundMessage) (DispatchResult, error) {
|
||||
return DispatchResult{}, nil
|
||||
})
|
||||
}()
|
||||
|
||||
// PingInterval was set to 10ms in quietConnector; wait long enough
|
||||
// for several pings to fire.
|
||||
deadline := time.After(500 * time.Millisecond)
|
||||
for {
|
||||
if conn.pingCount() >= 3 {
|
||||
break
|
||||
}
|
||||
select {
|
||||
case <-deadline:
|
||||
t.Fatalf("expected >=3 pings, got %d", conn.pingCount())
|
||||
case <-time.After(5 * time.Millisecond):
|
||||
}
|
||||
}
|
||||
|
||||
cancel()
|
||||
<-done
|
||||
}
|
||||
|
||||
func TestWSConnectorRequiresAllDeps(t *testing.T) {
|
||||
t.Parallel()
|
||||
cases := []struct {
|
||||
@@ -401,7 +530,7 @@ func TestWSConnectorDialErrorIsReturned(t *testing.T) {
|
||||
dialErr := errors.New("dial blew up")
|
||||
c, err := NewWSLongConnConnector(WSConnectorConfig{
|
||||
Dialer: &fakeWSDialer{dialErr: dialErr},
|
||||
EndpointFetcher: EndpointFetcherFunc(func(context.Context, InstallationCredentials) (WSEndpoint, error) { return WSEndpoint{URL: "wss://x"}, nil }),
|
||||
EndpointFetcher: EndpointFetcherFunc(func(context.Context, InstallationCredentials) (WSEndpoint, error) { return WSEndpoint{URL: "wss://x", ServiceID: 1}, nil }),
|
||||
FrameDecoder: FrameDecoderFunc(func([]byte, db.LarkInstallation) (InboundMessage, bool, error) { return InboundMessage{}, false, nil }),
|
||||
CredentialsProvider: CredentialsProviderFunc(func(context.Context, db.LarkInstallation) (InstallationCredentials, error) {
|
||||
return InstallationCredentials{AppID: "a"}, nil
|
||||
|
||||
@@ -9,73 +9,61 @@ import (
|
||||
"io"
|
||||
"log/slog"
|
||||
"net/http"
|
||||
"net/url"
|
||||
"strings"
|
||||
"strconv"
|
||||
"time"
|
||||
)
|
||||
|
||||
// defaultLarkCallbackBaseURL is the bootstrap host for the long-conn
|
||||
// `/callback/ws/endpoint` request. Note this is `open.feishu.cn`
|
||||
// (mainland) regardless of where the WS itself ends up — Lark returns
|
||||
// the wss URL in the response body. Operators on the international
|
||||
// tenant override via MULTICA_LARK_CALLBACK_BASE_URL to
|
||||
// `https://open.larksuite.com`.
|
||||
const defaultLarkCallbackBaseURL = "https://open.feishu.cn"
|
||||
|
||||
// HTTPConnectionTokenFetcher is the production EndpointFetcher. It
|
||||
// exchanges per-installation app credentials for a short-lived
|
||||
// WebSocket URL by way of two Lark open-platform calls:
|
||||
// WebSocket URL + ClientConfig by calling
|
||||
// `POST /callback/ws/endpoint` on Lark's open-platform host — the
|
||||
// same bootstrap path the official `larksuite/oapi-sdk-go/v3/ws`
|
||||
// client uses. The request body carries `{AppID, AppSecret}` plain
|
||||
// (no tenant_access_token bearer); the response carries the wss URL
|
||||
// (single-use, embedded device_id/service_id auth) and a ClientConfig
|
||||
// with PingInterval / ReconnectInterval / ReconnectNonce /
|
||||
// ReconnectCount in seconds.
|
||||
//
|
||||
// 1. POST /open-apis/auth/v3/tenant_access_token/internal — mint a
|
||||
// tenant_access_token. We piggyback on httpAPIClient's cached
|
||||
// mechanic by accepting the same APIClient surface; that keeps the
|
||||
// token pool in one place and avoids a parallel cache that could
|
||||
// drift from /open-apis/im/v1/messages calls happening from the
|
||||
// outbound side.
|
||||
// We do NOT cache the response. The wss URL is single-use by design
|
||||
// (the embedded `device_id` is rotated on every bootstrap call), so
|
||||
// re-using it on a reconnect would yield an auth rejection that looks
|
||||
// like a Lark outage. The connector calls Endpoint() once per Run.
|
||||
//
|
||||
// 2. POST /open-apis/event-subscription/v1/connection_token —
|
||||
// returns the wss:// URL the connector dials and any headers the
|
||||
// server expects on the upgrade request. The URL is single-use
|
||||
// and short-TTL; the connector calls Endpoint() once per Run.
|
||||
//
|
||||
// We do NOT cache the connection_token. The HTTP /tenant_access_token
|
||||
// already memoizes the long-lived bearer; the WS token is one-shot by
|
||||
// design and re-resolving it on every reconnect is the safest behavior
|
||||
// (a cached one-shot token would mean any retry storm replays the same
|
||||
// URL and gets rejected, looking like a Lark outage).
|
||||
//
|
||||
// The endpoint shape (path / response field names) reflects the
|
||||
// open-platform docs at the time of writing. Field names that the
|
||||
// open-platform team renames in the future stay isolated to this file —
|
||||
// the connector and the Hub do not care.
|
||||
// PersonalAgent compatibility — OPEN RISK (MUL-2671 review thread):
|
||||
// the official Feishu docs describe long-conn mode as "supports
|
||||
// 企业自建应用 only". The PersonalAgent device-flow archetype is not
|
||||
// listed as supported; live confirmation is pending. If the bootstrap
|
||||
// call returns a structured "app type not supported" error, this code
|
||||
// surfaces the code+msg directly so the Hub's backoff loop logs the
|
||||
// real reason instead of looping silently. The smoke test path is
|
||||
// `multica` -> register a PersonalAgent -> enable WS -> watch logs.
|
||||
type HTTPConnectionTokenFetcher struct {
|
||||
cfg HTTPConnectionTokenConfig
|
||||
}
|
||||
|
||||
// HTTPConnectionTokenConfig wires the fetcher's dependencies. BaseURL
|
||||
// defaults to defaultLarkBaseURL; tests substitute an httptest.Server
|
||||
// URL.
|
||||
// defaults to defaultLarkCallbackBaseURL; tests substitute an
|
||||
// httptest.Server URL.
|
||||
type HTTPConnectionTokenConfig struct {
|
||||
BaseURL string
|
||||
HTTPClient *http.Client
|
||||
// TokenSource provides the tenant_access_token for the bearer
|
||||
// header on the connection_token POST. The production
|
||||
// implementation is httpAPIClient (via a small adapter); tests
|
||||
// inject a constant.
|
||||
TokenSource TenantTokenSource
|
||||
Now func() time.Time
|
||||
Logger *slog.Logger
|
||||
}
|
||||
|
||||
// TenantTokenSource is the narrow contract HTTPConnectionTokenFetcher
|
||||
// needs. It exists so tests can stub the auth flow without standing up
|
||||
// a full APIClient.
|
||||
type TenantTokenSource interface {
|
||||
TenantAccessToken(ctx context.Context, creds InstallationCredentials) (string, error)
|
||||
}
|
||||
|
||||
// TenantTokenSourceFunc adapts a function literal to TenantTokenSource.
|
||||
type TenantTokenSourceFunc func(ctx context.Context, creds InstallationCredentials) (string, error)
|
||||
|
||||
// TenantAccessToken implements TenantTokenSource.
|
||||
func (f TenantTokenSourceFunc) TenantAccessToken(ctx context.Context, creds InstallationCredentials) (string, error) {
|
||||
return f(ctx, creds)
|
||||
Now func() time.Time
|
||||
Logger *slog.Logger
|
||||
}
|
||||
|
||||
func (c HTTPConnectionTokenConfig) withDefaults() HTTPConnectionTokenConfig {
|
||||
if c.BaseURL == "" {
|
||||
c.BaseURL = defaultLarkBaseURL
|
||||
c.BaseURL = defaultLarkCallbackBaseURL
|
||||
}
|
||||
c.BaseURL = strings.TrimRight(c.BaseURL, "/")
|
||||
if c.HTTPClient == nil {
|
||||
@@ -91,33 +79,56 @@ func (c HTTPConnectionTokenConfig) withDefaults() HTTPConnectionTokenConfig {
|
||||
}
|
||||
|
||||
// NewHTTPConnectionTokenFetcher returns the production EndpointFetcher
|
||||
// bound to the supplied configuration. A nil TokenSource is rejected
|
||||
// at construction so call sites do not get a fetcher that panics on
|
||||
// first use.
|
||||
// bound to the supplied configuration.
|
||||
func NewHTTPConnectionTokenFetcher(cfg HTTPConnectionTokenConfig) (*HTTPConnectionTokenFetcher, error) {
|
||||
if cfg.TokenSource == nil {
|
||||
return nil, errors.New("lark ws endpoint: TokenSource is required")
|
||||
}
|
||||
return &HTTPConnectionTokenFetcher{cfg: cfg.withDefaults()}, nil
|
||||
}
|
||||
|
||||
// bootstrapRequest mirrors the SDK's BootstrapRequest. Field names use
|
||||
// PascalCase exactly because the server-side JSON tags are PascalCase
|
||||
// (`AppID`, not `app_id`); the SDK's pbbp2 schema dictates the format
|
||||
// and lower-snake_case would not match.
|
||||
type bootstrapRequest struct {
|
||||
AppID string `json:"AppID"`
|
||||
AppSecret string `json:"AppSecret"`
|
||||
}
|
||||
|
||||
// endpointResponse mirrors the SDK's EndpointResp + Endpoint +
|
||||
// ClientConfig. Field naming is PascalCase to match Lark's wire shape.
|
||||
type endpointResponse struct {
|
||||
Code int `json:"code"`
|
||||
Msg string `json:"msg"`
|
||||
Data struct {
|
||||
URL string `json:"URL"`
|
||||
ClientConfig struct {
|
||||
ReconnectCount int `json:"ReconnectCount"`
|
||||
ReconnectInterval int `json:"ReconnectInterval"`
|
||||
ReconnectNonce int `json:"ReconnectNonce"`
|
||||
PingInterval int `json:"PingInterval"`
|
||||
} `json:"ClientConfig"`
|
||||
} `json:"data"`
|
||||
}
|
||||
|
||||
// Endpoint implements EndpointFetcher.
|
||||
func (f *HTTPConnectionTokenFetcher) Endpoint(ctx context.Context, creds InstallationCredentials) (WSEndpoint, error) {
|
||||
token, err := f.cfg.TokenSource.TenantAccessToken(ctx, creds)
|
||||
if err != nil {
|
||||
return WSEndpoint{}, fmt.Errorf("lark ws endpoint: tenant token: %w", err)
|
||||
if creds.AppID == "" || creds.AppSecret == "" {
|
||||
return WSEndpoint{}, errors.New("lark ws endpoint: missing app_id / app_secret")
|
||||
}
|
||||
body := map[string]string{"app_id": creds.AppID}
|
||||
body := bootstrapRequest{AppID: creds.AppID, AppSecret: creds.AppSecret}
|
||||
raw, err := json.Marshal(body)
|
||||
if err != nil {
|
||||
return WSEndpoint{}, fmt.Errorf("marshal body: %w", err)
|
||||
}
|
||||
req, err := http.NewRequestWithContext(ctx, http.MethodPost, f.cfg.BaseURL+"/open-apis/event-subscription/v1/connection_token", bytes.NewReader(raw))
|
||||
req, err := http.NewRequestWithContext(ctx, http.MethodPost, f.cfg.BaseURL+"/callback/ws/endpoint", bytes.NewReader(raw))
|
||||
if err != nil {
|
||||
return WSEndpoint{}, fmt.Errorf("new request: %w", err)
|
||||
}
|
||||
req.Header.Set("Content-Type", "application/json; charset=utf-8")
|
||||
req.Header.Set("Authorization", "Bearer "+token)
|
||||
// Locale header is sent verbatim by the SDK — Lark uses it for the
|
||||
// error `msg` field (Chinese vs English). We pick zh because that's
|
||||
// the audience Multica server logs are read by today; if i18n
|
||||
// matters later this becomes an env or a per-installation knob.
|
||||
req.Header.Set("locale", "zh")
|
||||
resp, err := f.cfg.HTTPClient.Do(req)
|
||||
if err != nil {
|
||||
return WSEndpoint{}, fmt.Errorf("http do: %w", err)
|
||||
@@ -130,45 +141,49 @@ func (f *HTTPConnectionTokenFetcher) Endpoint(ctx context.Context, creds Install
|
||||
if resp.StatusCode < 200 || resp.StatusCode >= 300 {
|
||||
return WSEndpoint{}, fmt.Errorf("http %d: %s", resp.StatusCode, truncate(string(rawResp), 512))
|
||||
}
|
||||
var decoded struct {
|
||||
Code int `json:"code"`
|
||||
Msg string `json:"msg"`
|
||||
Data struct {
|
||||
URL string `json:"url"`
|
||||
} `json:"data"`
|
||||
}
|
||||
var decoded endpointResponse
|
||||
if err := json.Unmarshal(rawResp, &decoded); err != nil {
|
||||
return WSEndpoint{}, fmt.Errorf("decode response: %w (raw=%s)", err, truncate(string(rawResp), 256))
|
||||
}
|
||||
if decoded.Code != 0 || decoded.Data.URL == "" {
|
||||
// Surface the structured Lark error verbatim — that's what
|
||||
// operators need to disambiguate "app type not supported"
|
||||
// (PersonalAgent risk) from "credentials wrong" from "Lark
|
||||
// outage". The downstream Hub backoff logs this on each
|
||||
// reconnect attempt.
|
||||
return WSEndpoint{}, fmt.Errorf("lark ws endpoint: code=%d msg=%q", decoded.Code, decoded.Msg)
|
||||
}
|
||||
return WSEndpoint{URL: decoded.Data.URL, Headers: http.Header{}}, nil
|
||||
}
|
||||
|
||||
// HTTPAPIClientTokenSource adapts an *httpAPIClient into a
|
||||
// TenantTokenSource. We expose this here (rather than make
|
||||
// httpAPIClient.tenantAccessToken public on the APIClient interface)
|
||||
// because tenant_access_token retrieval is an implementation detail of
|
||||
// the HTTP client; only the WS endpoint fetcher needs it, and only
|
||||
// because the connection_token endpoint takes a bearer.
|
||||
type HTTPAPIClientTokenSource struct {
|
||||
c *httpAPIClient
|
||||
}
|
||||
|
||||
// NewHTTPAPIClientTokenSource returns a TenantTokenSource backed by the
|
||||
// supplied *httpAPIClient (the same object NewHTTPAPIClient produces).
|
||||
// Construction panics if the argument is nil because that would defer
|
||||
// a clear configuration error to runtime.
|
||||
func NewHTTPAPIClientTokenSource(client APIClient) (TenantTokenSource, error) {
|
||||
httpC, ok := client.(*httpAPIClient)
|
||||
if !ok {
|
||||
return nil, errors.New("lark ws endpoint: TokenSource requires the real httpAPIClient (stub is not usable)")
|
||||
serviceID, err := parseServiceIDFromURL(decoded.Data.URL)
|
||||
if err != nil {
|
||||
return WSEndpoint{}, fmt.Errorf("parse service_id from wss url: %w", err)
|
||||
}
|
||||
return &HTTPAPIClientTokenSource{c: httpC}, nil
|
||||
return WSEndpoint{
|
||||
URL: decoded.Data.URL,
|
||||
Headers: http.Header{},
|
||||
ServiceID: serviceID,
|
||||
PingInterval: time.Duration(decoded.Data.ClientConfig.PingInterval) * time.Second,
|
||||
ReconnectInterval: time.Duration(decoded.Data.ClientConfig.ReconnectInterval) * time.Second,
|
||||
ReconnectNonce: time.Duration(decoded.Data.ClientConfig.ReconnectNonce) * time.Second,
|
||||
ReconnectCount: decoded.Data.ClientConfig.ReconnectCount,
|
||||
}, nil
|
||||
}
|
||||
|
||||
// TenantAccessToken implements TenantTokenSource.
|
||||
func (s *HTTPAPIClientTokenSource) TenantAccessToken(ctx context.Context, creds InstallationCredentials) (string, error) {
|
||||
return s.c.tenantAccessToken(ctx, creds)
|
||||
// parseServiceIDFromURL extracts the `service_id` query parameter Lark
|
||||
// embeds in the wss URL. The connector needs this value to address
|
||||
// outbound Frame.Service for ping/pong and ACK frames; the SDK does
|
||||
// the same.
|
||||
func parseServiceIDFromURL(rawURL string) (int32, error) {
|
||||
u, err := url.Parse(rawURL)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
sid := u.Query().Get("service_id")
|
||||
if sid == "" {
|
||||
return 0, errors.New("missing service_id query parameter")
|
||||
}
|
||||
n, err := strconv.ParseInt(sid, 10, 32)
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("service_id %q is not an int: %w", sid, err)
|
||||
}
|
||||
return int32(n), nil
|
||||
}
|
||||
|
||||
@@ -2,77 +2,101 @@ package lark
|
||||
|
||||
import (
|
||||
"context"
|
||||
"errors"
|
||||
"encoding/json"
|
||||
"io"
|
||||
"log/slog"
|
||||
"net/http"
|
||||
"net/http/httptest"
|
||||
"testing"
|
||||
"time"
|
||||
)
|
||||
|
||||
func TestHTTPConnectionTokenFetcherEndpointSuccess(t *testing.T) {
|
||||
// TestHTTPConnectionTokenFetcherCallbackEndpointSuccess exercises the
|
||||
// happy path of the official /callback/ws/endpoint bootstrap: AppID +
|
||||
// AppSecret in the body, no tenant_access_token bearer, response
|
||||
// shape mirrors the SDK's EndpointResp + ClientConfig.
|
||||
func TestHTTPConnectionTokenFetcherCallbackEndpointSuccess(t *testing.T) {
|
||||
t.Parallel()
|
||||
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
if r.URL.Path != "/open-apis/event-subscription/v1/connection_token" {
|
||||
t.Errorf("path = %q", r.URL.Path)
|
||||
if r.URL.Path != "/callback/ws/endpoint" {
|
||||
t.Errorf("path = %q; want /callback/ws/endpoint", r.URL.Path)
|
||||
}
|
||||
if got := r.Header.Get("Authorization"); got != "Bearer tok-123" {
|
||||
t.Errorf("Authorization = %q", got)
|
||||
if r.Method != http.MethodPost {
|
||||
t.Errorf("method = %q; want POST", r.Method)
|
||||
}
|
||||
_, _ = io.WriteString(w, `{"code":0,"data":{"url":"wss://lark.example/test"}}`)
|
||||
if r.Header.Get("Authorization") != "" {
|
||||
t.Errorf("Authorization header should be empty for callback bootstrap")
|
||||
}
|
||||
var body bootstrapRequest
|
||||
_ = json.NewDecoder(r.Body).Decode(&body)
|
||||
if body.AppID != "cli_app_x" || body.AppSecret != "secret-xyz" {
|
||||
t.Errorf("body = %+v", body)
|
||||
}
|
||||
_, _ = io.WriteString(w, `{
|
||||
"code":0,
|
||||
"data":{
|
||||
"URL":"wss://lark.example/ws/foo?device_id=dev-1&service_id=42",
|
||||
"ClientConfig":{
|
||||
"ReconnectCount":-1,
|
||||
"ReconnectInterval":120,
|
||||
"ReconnectNonce":30,
|
||||
"PingInterval":120
|
||||
}
|
||||
}
|
||||
}`)
|
||||
}))
|
||||
defer srv.Close()
|
||||
|
||||
f, err := NewHTTPConnectionTokenFetcher(HTTPConnectionTokenConfig{
|
||||
BaseURL: srv.URL,
|
||||
TokenSource: TenantTokenSourceFunc(func(ctx context.Context, creds InstallationCredentials) (string, error) {
|
||||
return "tok-123", nil
|
||||
}),
|
||||
Logger: slog.New(slog.NewTextHandler(io.Discard, nil)),
|
||||
Logger: slog.New(slog.NewTextHandler(io.Discard, nil)),
|
||||
})
|
||||
if err != nil {
|
||||
t.Fatalf("constructor: %v", err)
|
||||
}
|
||||
ep, err := f.Endpoint(context.Background(), InstallationCredentials{AppID: "cli_x", AppSecret: "s"})
|
||||
ep, err := f.Endpoint(context.Background(), InstallationCredentials{AppID: "cli_app_x", AppSecret: "secret-xyz"})
|
||||
if err != nil {
|
||||
t.Fatalf("Endpoint: %v", err)
|
||||
}
|
||||
if ep.URL != "wss://lark.example/test" {
|
||||
if ep.URL != "wss://lark.example/ws/foo?device_id=dev-1&service_id=42" {
|
||||
t.Errorf("URL = %q", ep.URL)
|
||||
}
|
||||
if ep.ServiceID != 42 {
|
||||
t.Errorf("ServiceID = %d; want 42", ep.ServiceID)
|
||||
}
|
||||
if ep.PingInterval != 120*time.Second {
|
||||
t.Errorf("PingInterval = %s; want 120s", ep.PingInterval)
|
||||
}
|
||||
if ep.ReconnectInterval != 120*time.Second {
|
||||
t.Errorf("ReconnectInterval = %s", ep.ReconnectInterval)
|
||||
}
|
||||
if ep.ReconnectNonce != 30*time.Second {
|
||||
t.Errorf("ReconnectNonce = %s", ep.ReconnectNonce)
|
||||
}
|
||||
if ep.ReconnectCount != -1 {
|
||||
t.Errorf("ReconnectCount = %d", ep.ReconnectCount)
|
||||
}
|
||||
}
|
||||
|
||||
// TestHTTPConnectionTokenFetcherSurfacesLarkErrorCode confirms that
|
||||
// app-type / auth errors from Lark (e.g. PersonalAgent not eligible)
|
||||
// surface verbatim so the Hub backoff loop logs them.
|
||||
func TestHTTPConnectionTokenFetcherSurfacesLarkErrorCode(t *testing.T) {
|
||||
t.Parallel()
|
||||
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
_, _ = io.WriteString(w, `{"code":99991663,"msg":"token expired"}`)
|
||||
_, _ = io.WriteString(w, `{"code":403,"msg":"app type not supported"}`)
|
||||
}))
|
||||
defer srv.Close()
|
||||
|
||||
f, _ := NewHTTPConnectionTokenFetcher(HTTPConnectionTokenConfig{
|
||||
BaseURL: srv.URL,
|
||||
TokenSource: TenantTokenSourceFunc(func(context.Context, InstallationCredentials) (string, error) {
|
||||
return "tok", nil
|
||||
}),
|
||||
})
|
||||
_, err := f.Endpoint(context.Background(), InstallationCredentials{AppID: "a"})
|
||||
_, err := f.Endpoint(context.Background(), InstallationCredentials{AppID: "a", AppSecret: "s"})
|
||||
if err == nil {
|
||||
t.Fatal("expected error for non-zero Lark code")
|
||||
}
|
||||
}
|
||||
|
||||
func TestHTTPConnectionTokenFetcherWrapsTokenSourceError(t *testing.T) {
|
||||
t.Parallel()
|
||||
src := errors.New("token decryption broke")
|
||||
f, _ := NewHTTPConnectionTokenFetcher(HTTPConnectionTokenConfig{
|
||||
BaseURL: "http://unused",
|
||||
TokenSource: TenantTokenSourceFunc(func(context.Context, InstallationCredentials) (string, error) {
|
||||
return "", src
|
||||
}),
|
||||
})
|
||||
_, err := f.Endpoint(context.Background(), InstallationCredentials{AppID: "a"})
|
||||
if err == nil || !errors.Is(err, src) {
|
||||
t.Fatalf("expected wrapped TokenSource error, got %v", err)
|
||||
if !contains(err.Error(), "app type not supported") {
|
||||
t.Errorf("error should surface Lark msg: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
@@ -86,26 +110,50 @@ func TestHTTPConnectionTokenFetcherRejectsHTTPErrorStatus(t *testing.T) {
|
||||
|
||||
f, _ := NewHTTPConnectionTokenFetcher(HTTPConnectionTokenConfig{
|
||||
BaseURL: srv.URL,
|
||||
TokenSource: TenantTokenSourceFunc(func(context.Context, InstallationCredentials) (string, error) {
|
||||
return "tok", nil
|
||||
}),
|
||||
})
|
||||
_, err := f.Endpoint(context.Background(), InstallationCredentials{AppID: "a"})
|
||||
_, err := f.Endpoint(context.Background(), InstallationCredentials{AppID: "a", AppSecret: "s"})
|
||||
if err == nil {
|
||||
t.Fatal("expected error on 5xx")
|
||||
}
|
||||
}
|
||||
|
||||
func TestNewHTTPConnectionTokenFetcherRequiresTokenSource(t *testing.T) {
|
||||
func TestHTTPConnectionTokenFetcherRejectsMissingCredentials(t *testing.T) {
|
||||
t.Parallel()
|
||||
if _, err := NewHTTPConnectionTokenFetcher(HTTPConnectionTokenConfig{}); err == nil {
|
||||
t.Fatal("expected error when TokenSource is nil")
|
||||
f, _ := NewHTTPConnectionTokenFetcher(HTTPConnectionTokenConfig{BaseURL: "http://unused"})
|
||||
if _, err := f.Endpoint(context.Background(), InstallationCredentials{AppID: ""}); err == nil {
|
||||
t.Fatal("expected error on missing app_id")
|
||||
}
|
||||
if _, err := f.Endpoint(context.Background(), InstallationCredentials{AppID: "a"}); err == nil {
|
||||
t.Fatal("expected error on missing app_secret")
|
||||
}
|
||||
}
|
||||
|
||||
func TestNewHTTPAPIClientTokenSourceRejectsStub(t *testing.T) {
|
||||
func TestHTTPConnectionTokenFetcherRejectsURLWithoutServiceID(t *testing.T) {
|
||||
t.Parallel()
|
||||
if _, err := NewHTTPAPIClientTokenSource(NewStubAPIClient(nil)); err == nil {
|
||||
t.Fatal("expected error when wrapping the stub APIClient")
|
||||
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
||||
// Response URL is well-formed but missing the service_id
|
||||
// query param — the connector can't address outbound frames
|
||||
// without it, so the fetcher must reject the bootstrap.
|
||||
_, _ = io.WriteString(w, `{"code":0,"data":{"URL":"wss://lark.example/ws?device_id=dev-1","ClientConfig":{"PingInterval":120}}}`)
|
||||
}))
|
||||
defer srv.Close()
|
||||
|
||||
f, _ := NewHTTPConnectionTokenFetcher(HTTPConnectionTokenConfig{BaseURL: srv.URL})
|
||||
_, err := f.Endpoint(context.Background(), InstallationCredentials{AppID: "a", AppSecret: "s"})
|
||||
if err == nil {
|
||||
t.Fatal("expected error when service_id is missing from response URL")
|
||||
}
|
||||
}
|
||||
|
||||
func contains(s, sub string) bool {
|
||||
return s != "" && sub != "" && (s == sub || (len(s) > len(sub) && indexOf(s, sub) >= 0))
|
||||
}
|
||||
|
||||
func indexOf(s, sub string) int {
|
||||
for i := 0; i+len(sub) <= len(s); i++ {
|
||||
if s[i:i+len(sub)] == sub {
|
||||
return i
|
||||
}
|
||||
}
|
||||
return -1
|
||||
}
|
||||
|
||||
@@ -0,0 +1,373 @@
|
||||
package lark
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
|
||||
"google.golang.org/protobuf/encoding/protowire"
|
||||
)
|
||||
|
||||
// Wire-compatible re-implementation of the Lark/Feishu long-connection
|
||||
// binary Frame envelope, byte-identical to the SDK's
|
||||
// github.com/larksuite/oapi-sdk-go/v3/ws/pbbp2.Frame.
|
||||
//
|
||||
// Lark's long-connection transport carries every message — control,
|
||||
// data, ping, pong, ack — as a single binary protobuf Frame. JSON
|
||||
// payloads are nested inside Frame.Payload; the outer wrapper itself
|
||||
// is protobuf. Decoding via JSON (the previous implementation) cannot
|
||||
// see the wire and will reject every real frame.
|
||||
//
|
||||
// We re-encode by hand using google.golang.org/protobuf/encoding/protowire
|
||||
// rather than importing the official SDK's pbbp2 package: the SDK has
|
||||
// a large transitive dependency tree (full open-platform client,
|
||||
// generated code for every API surface) and we only need this one
|
||||
// message type. Hand-rolling the encode/decode for a 9-field message
|
||||
// is ~150 lines and isolated to this file, so the cost is bounded
|
||||
// while the dependency surface stays small.
|
||||
//
|
||||
// Field tags MUST match the SDK exactly; mismatches produce frames
|
||||
// that round-trip against ourselves but Lark silently drops them.
|
||||
|
||||
const (
|
||||
// FrameMethodControl identifies a frame whose Method=Control(0).
|
||||
// Control frames carry ping/pong and server-pushed ClientConfig
|
||||
// updates; they never carry an inbound event payload.
|
||||
FrameMethodControl int32 = 0
|
||||
|
||||
// FrameMethodData identifies a frame whose Method=Data(1). Data
|
||||
// frames carry the actual event payload (im.message.receive_v1,
|
||||
// card interaction, etc.) and require an ACK response.
|
||||
FrameMethodData int32 = 1
|
||||
)
|
||||
|
||||
// FrameHeaderType enumerates the values Lark puts in the Frame
|
||||
// header keyed `type`. These drive per-frame routing logic.
|
||||
const (
|
||||
FrameHeaderTypeKey = "type"
|
||||
FrameHeaderTypeEvent = "event"
|
||||
FrameHeaderTypeCard = "card"
|
||||
FrameHeaderTypePing = "ping"
|
||||
FrameHeaderTypePong = "pong"
|
||||
|
||||
// FrameHeaderMessageIDKey is the dedup / chunk key Lark sets on
|
||||
// each data frame; reused as-is in the ACK so server can correlate.
|
||||
FrameHeaderMessageIDKey = "message_id"
|
||||
|
||||
// FrameHeaderSumKey / FrameHeaderSeqKey carry chunking metadata
|
||||
// for multi-frame payloads (sum>1 means N chunks indexed by seq).
|
||||
// MVP does not assemble chunks (Lark events fit in one frame); we
|
||||
// still preserve the headers in the ACK so server doesn't reject
|
||||
// the reply for missing keys.
|
||||
FrameHeaderSumKey = "sum"
|
||||
FrameHeaderSeqKey = "seq"
|
||||
)
|
||||
|
||||
// FrameHeader is one (key, value) pair in Frame.Headers. Equivalent to
|
||||
// the SDK's pbbp2.Header.
|
||||
type FrameHeader struct {
|
||||
Key string
|
||||
Value string
|
||||
}
|
||||
|
||||
// Frame mirrors pbbp2.Frame. Field numbers match the SDK proto so the
|
||||
// on-wire bytes are byte-identical to what oapi-sdk-go produces.
|
||||
//
|
||||
// Unset fields are left zero / nil; the marshaller writes only the
|
||||
// fields a caller set explicitly. That matches proto3's "skip zero
|
||||
// values" rule and keeps our ping/pong frames small.
|
||||
type Frame struct {
|
||||
SeqID uint64 // proto field 1
|
||||
LogID uint64 // proto field 2
|
||||
Service int32 // proto field 3
|
||||
Method int32 // proto field 4
|
||||
Headers []FrameHeader // proto field 5
|
||||
PayloadEncoding string // proto field 6
|
||||
PayloadType string // proto field 7
|
||||
Payload []byte // proto field 8
|
||||
LogIDNew string // proto field 9
|
||||
}
|
||||
|
||||
// HeaderValue returns the value for the first header with the supplied
|
||||
// key, or "" if absent. Lark uses headers as a flat map, but the SDK's
|
||||
// proto schema is a repeated field — we treat duplicates as "first
|
||||
// wins" because that's what the SDK does in practice.
|
||||
func (f *Frame) HeaderValue(key string) string {
|
||||
for _, h := range f.Headers {
|
||||
if h.Key == key {
|
||||
return h.Value
|
||||
}
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
// Marshal encodes the frame to the wire format Lark expects. The
|
||||
// returned bytes are sent verbatim as the WebSocket binary payload.
|
||||
func (f *Frame) Marshal() []byte {
|
||||
// Pre-sized buffer keeps the steady-state ping/pong / ACK
|
||||
// allocations to a single make: empirically those frames are
|
||||
// well under 128 bytes.
|
||||
buf := make([]byte, 0, 64+len(f.Payload))
|
||||
if f.SeqID != 0 {
|
||||
buf = protowire.AppendTag(buf, 1, protowire.VarintType)
|
||||
buf = protowire.AppendVarint(buf, f.SeqID)
|
||||
}
|
||||
if f.LogID != 0 {
|
||||
buf = protowire.AppendTag(buf, 2, protowire.VarintType)
|
||||
buf = protowire.AppendVarint(buf, f.LogID)
|
||||
}
|
||||
if f.Service != 0 {
|
||||
buf = protowire.AppendTag(buf, 3, protowire.VarintType)
|
||||
buf = protowire.AppendVarint(buf, uint64(uint32(f.Service)))
|
||||
}
|
||||
if f.Method != 0 {
|
||||
buf = protowire.AppendTag(buf, 4, protowire.VarintType)
|
||||
buf = protowire.AppendVarint(buf, uint64(uint32(f.Method)))
|
||||
}
|
||||
for _, h := range f.Headers {
|
||||
buf = protowire.AppendTag(buf, 5, protowire.BytesType)
|
||||
buf = protowire.AppendVarint(buf, uint64(headerSize(h)))
|
||||
if h.Key != "" {
|
||||
buf = protowire.AppendTag(buf, 1, protowire.BytesType)
|
||||
buf = protowire.AppendString(buf, h.Key)
|
||||
}
|
||||
if h.Value != "" {
|
||||
buf = protowire.AppendTag(buf, 2, protowire.BytesType)
|
||||
buf = protowire.AppendString(buf, h.Value)
|
||||
}
|
||||
}
|
||||
if f.PayloadEncoding != "" {
|
||||
buf = protowire.AppendTag(buf, 6, protowire.BytesType)
|
||||
buf = protowire.AppendString(buf, f.PayloadEncoding)
|
||||
}
|
||||
if f.PayloadType != "" {
|
||||
buf = protowire.AppendTag(buf, 7, protowire.BytesType)
|
||||
buf = protowire.AppendString(buf, f.PayloadType)
|
||||
}
|
||||
if len(f.Payload) > 0 {
|
||||
buf = protowire.AppendTag(buf, 8, protowire.BytesType)
|
||||
buf = protowire.AppendBytes(buf, f.Payload)
|
||||
}
|
||||
if f.LogIDNew != "" {
|
||||
buf = protowire.AppendTag(buf, 9, protowire.BytesType)
|
||||
buf = protowire.AppendString(buf, f.LogIDNew)
|
||||
}
|
||||
return buf
|
||||
}
|
||||
|
||||
func headerSize(h FrameHeader) int {
|
||||
n := 0
|
||||
if h.Key != "" {
|
||||
n += protowire.SizeTag(1) + protowire.SizeBytes(len(h.Key))
|
||||
}
|
||||
if h.Value != "" {
|
||||
n += protowire.SizeTag(2) + protowire.SizeBytes(len(h.Value))
|
||||
}
|
||||
return n
|
||||
}
|
||||
|
||||
// UnmarshalFrame parses one binary protobuf message into a Frame.
|
||||
// Unknown fields are skipped (proto3 behaviour) so server-side schema
|
||||
// additions do not break us. Truncated / malformed bytes return an
|
||||
// error and the caller (the WS connector) treats the frame as bad
|
||||
// and drops it without tearing down the connection.
|
||||
func UnmarshalFrame(b []byte) (*Frame, error) {
|
||||
if len(b) == 0 {
|
||||
return nil, errors.New("ws frame: empty buffer")
|
||||
}
|
||||
f := &Frame{}
|
||||
for len(b) > 0 {
|
||||
num, typ, n := protowire.ConsumeTag(b)
|
||||
if err := protowire.ParseError(n); err != nil {
|
||||
return nil, fmt.Errorf("ws frame: consume tag: %w", err)
|
||||
}
|
||||
b = b[n:]
|
||||
switch num {
|
||||
case 1: // SeqID uint64
|
||||
if typ != protowire.VarintType {
|
||||
return nil, fmt.Errorf("ws frame: field 1 expects varint, got %v", typ)
|
||||
}
|
||||
v, m := protowire.ConsumeVarint(b)
|
||||
if err := protowire.ParseError(m); err != nil {
|
||||
return nil, fmt.Errorf("ws frame: consume seq_id: %w", err)
|
||||
}
|
||||
f.SeqID = v
|
||||
b = b[m:]
|
||||
case 2: // LogID uint64
|
||||
if typ != protowire.VarintType {
|
||||
return nil, fmt.Errorf("ws frame: field 2 expects varint, got %v", typ)
|
||||
}
|
||||
v, m := protowire.ConsumeVarint(b)
|
||||
if err := protowire.ParseError(m); err != nil {
|
||||
return nil, fmt.Errorf("ws frame: consume log_id: %w", err)
|
||||
}
|
||||
f.LogID = v
|
||||
b = b[m:]
|
||||
case 3: // Service int32
|
||||
if typ != protowire.VarintType {
|
||||
return nil, fmt.Errorf("ws frame: field 3 expects varint, got %v", typ)
|
||||
}
|
||||
v, m := protowire.ConsumeVarint(b)
|
||||
if err := protowire.ParseError(m); err != nil {
|
||||
return nil, fmt.Errorf("ws frame: consume service: %w", err)
|
||||
}
|
||||
f.Service = int32(v)
|
||||
b = b[m:]
|
||||
case 4: // Method int32
|
||||
if typ != protowire.VarintType {
|
||||
return nil, fmt.Errorf("ws frame: field 4 expects varint, got %v", typ)
|
||||
}
|
||||
v, m := protowire.ConsumeVarint(b)
|
||||
if err := protowire.ParseError(m); err != nil {
|
||||
return nil, fmt.Errorf("ws frame: consume method: %w", err)
|
||||
}
|
||||
f.Method = int32(v)
|
||||
b = b[m:]
|
||||
case 5: // Headers (repeated)
|
||||
if typ != protowire.BytesType {
|
||||
return nil, fmt.Errorf("ws frame: field 5 expects bytes, got %v", typ)
|
||||
}
|
||||
hb, m := protowire.ConsumeBytes(b)
|
||||
if err := protowire.ParseError(m); err != nil {
|
||||
return nil, fmt.Errorf("ws frame: consume header: %w", err)
|
||||
}
|
||||
h, herr := unmarshalHeader(hb)
|
||||
if herr != nil {
|
||||
return nil, herr
|
||||
}
|
||||
f.Headers = append(f.Headers, h)
|
||||
b = b[m:]
|
||||
case 6: // PayloadEncoding string
|
||||
if typ != protowire.BytesType {
|
||||
return nil, fmt.Errorf("ws frame: field 6 expects bytes, got %v", typ)
|
||||
}
|
||||
s, m := protowire.ConsumeString(b)
|
||||
if err := protowire.ParseError(m); err != nil {
|
||||
return nil, fmt.Errorf("ws frame: consume payload_encoding: %w", err)
|
||||
}
|
||||
f.PayloadEncoding = s
|
||||
b = b[m:]
|
||||
case 7: // PayloadType string
|
||||
if typ != protowire.BytesType {
|
||||
return nil, fmt.Errorf("ws frame: field 7 expects bytes, got %v", typ)
|
||||
}
|
||||
s, m := protowire.ConsumeString(b)
|
||||
if err := protowire.ParseError(m); err != nil {
|
||||
return nil, fmt.Errorf("ws frame: consume payload_type: %w", err)
|
||||
}
|
||||
f.PayloadType = s
|
||||
b = b[m:]
|
||||
case 8: // Payload bytes
|
||||
if typ != protowire.BytesType {
|
||||
return nil, fmt.Errorf("ws frame: field 8 expects bytes, got %v", typ)
|
||||
}
|
||||
raw, m := protowire.ConsumeBytes(b)
|
||||
if err := protowire.ParseError(m); err != nil {
|
||||
return nil, fmt.Errorf("ws frame: consume payload: %w", err)
|
||||
}
|
||||
// Copy out so the Frame outlives the input buffer
|
||||
// (ConsumeBytes returns a sub-slice).
|
||||
f.Payload = append([]byte(nil), raw...)
|
||||
b = b[m:]
|
||||
case 9: // LogIDNew string
|
||||
if typ != protowire.BytesType {
|
||||
return nil, fmt.Errorf("ws frame: field 9 expects bytes, got %v", typ)
|
||||
}
|
||||
s, m := protowire.ConsumeString(b)
|
||||
if err := protowire.ParseError(m); err != nil {
|
||||
return nil, fmt.Errorf("ws frame: consume log_id_new: %w", err)
|
||||
}
|
||||
f.LogIDNew = s
|
||||
b = b[m:]
|
||||
default:
|
||||
m := protowire.ConsumeFieldValue(num, typ, b)
|
||||
if err := protowire.ParseError(m); err != nil {
|
||||
return nil, fmt.Errorf("ws frame: skip unknown field %d: %w", num, err)
|
||||
}
|
||||
b = b[m:]
|
||||
}
|
||||
}
|
||||
return f, nil
|
||||
}
|
||||
|
||||
func unmarshalHeader(b []byte) (FrameHeader, error) {
|
||||
var h FrameHeader
|
||||
for len(b) > 0 {
|
||||
num, typ, n := protowire.ConsumeTag(b)
|
||||
if err := protowire.ParseError(n); err != nil {
|
||||
return FrameHeader{}, fmt.Errorf("ws frame: header tag: %w", err)
|
||||
}
|
||||
b = b[n:]
|
||||
switch num {
|
||||
case 1:
|
||||
if typ != protowire.BytesType {
|
||||
return FrameHeader{}, fmt.Errorf("ws frame: header.key expects bytes, got %v", typ)
|
||||
}
|
||||
s, m := protowire.ConsumeString(b)
|
||||
if err := protowire.ParseError(m); err != nil {
|
||||
return FrameHeader{}, fmt.Errorf("ws frame: header.key: %w", err)
|
||||
}
|
||||
h.Key = s
|
||||
b = b[m:]
|
||||
case 2:
|
||||
if typ != protowire.BytesType {
|
||||
return FrameHeader{}, fmt.Errorf("ws frame: header.value expects bytes, got %v", typ)
|
||||
}
|
||||
s, m := protowire.ConsumeString(b)
|
||||
if err := protowire.ParseError(m); err != nil {
|
||||
return FrameHeader{}, fmt.Errorf("ws frame: header.value: %w", err)
|
||||
}
|
||||
h.Value = s
|
||||
b = b[m:]
|
||||
default:
|
||||
m := protowire.ConsumeFieldValue(num, typ, b)
|
||||
if err := protowire.ParseError(m); err != nil {
|
||||
return FrameHeader{}, fmt.Errorf("ws frame: skip header field %d: %w", num, err)
|
||||
}
|
||||
b = b[m:]
|
||||
}
|
||||
}
|
||||
return h, nil
|
||||
}
|
||||
|
||||
// NewPingFrame builds the client-side keepalive frame. Lark's long
|
||||
// connection uses an app-layer ping (binary Frame with type=ping),
|
||||
// NOT a WebSocket protocol-level PING — gorilla's WriteControl pings
|
||||
// would be ignored.
|
||||
func NewPingFrame(serviceID int32) *Frame {
|
||||
return &Frame{
|
||||
Method: FrameMethodControl,
|
||||
Service: serviceID,
|
||||
Headers: []FrameHeader{{Key: FrameHeaderTypeKey, Value: FrameHeaderTypePing}},
|
||||
}
|
||||
}
|
||||
|
||||
// NewPongFrame builds the client-side response to a server-initiated
|
||||
// ping. Lark may push ping frames at any cadence; we reply in kind.
|
||||
func NewPongFrame(serviceID int32) *Frame {
|
||||
return &Frame{
|
||||
Method: FrameMethodControl,
|
||||
Service: serviceID,
|
||||
Headers: []FrameHeader{{Key: FrameHeaderTypeKey, Value: FrameHeaderTypePong}},
|
||||
}
|
||||
}
|
||||
|
||||
// NewAckFrame builds the ACK response for an inbound data frame.
|
||||
// Per the SDK, the ACK reuses the inbound frame's Headers verbatim
|
||||
// (so the server can correlate by message_id) and writes a JSON-
|
||||
// encoded Response struct as the Payload.
|
||||
//
|
||||
// codeOK is true on successful dispatch (Response.code=200); false
|
||||
// surfaces 500 to the server (it will retry the event).
|
||||
func NewAckFrame(inbound *Frame, codeOK bool) *Frame {
|
||||
code := 200
|
||||
if !codeOK {
|
||||
code = 500
|
||||
}
|
||||
payload := fmt.Sprintf(`{"code":%d,"headers":{},"data":""}`, code)
|
||||
return &Frame{
|
||||
Method: inbound.Method,
|
||||
Service: inbound.Service,
|
||||
Headers: inbound.Headers,
|
||||
Payload: []byte(payload),
|
||||
}
|
||||
}
|
||||
@@ -9,59 +9,50 @@ import (
|
||||
db "github.com/multica-ai/multica/server/pkg/db/generated"
|
||||
)
|
||||
|
||||
// LarkJSONFrameDecoder decodes the JSON envelopes Lark's
|
||||
// event-subscription long-conn pushes over each WebSocket message.
|
||||
// LarkJSONFrameDecoder decodes the JSON event payload Lark nests
|
||||
// inside a long-conn data Frame. The outer binary Frame envelope
|
||||
// (ws_frame.go) is stripped by the connector; the decoder only sees
|
||||
// the bytes from Frame.Payload, which Lark formats as the standard
|
||||
// event-subscription envelope: {schema, header, event}.
|
||||
//
|
||||
// The Lark open platform mixes a control surface (heartbeat / ack)
|
||||
// with the actual event payload in a single channel; this decoder is
|
||||
// the source of truth for which raw frames the dispatcher should ever
|
||||
// see. It deliberately distinguishes three outcomes:
|
||||
// Three outcomes:
|
||||
//
|
||||
// - (msg, true, nil) — a real `im.message.receive_v1` event that
|
||||
// should land in chat_session. The Hub forwards it through the
|
||||
// Dispatcher; the connector does not introspect further.
|
||||
// - (zero, false, nil) — a recognized control frame (heartbeat,
|
||||
// `frame_ack`, etc.) or a non-message event we don't yet handle.
|
||||
// The connector drops these silently — they are expected traffic.
|
||||
// - (zero, false, err) — malformed JSON or a recognized event we
|
||||
// could not parse. The connector logs and drops the single frame,
|
||||
// does NOT tear the WS down (one bad frame should not amplify
|
||||
// into a reconnect storm).
|
||||
// - (msg, true, nil) — `im.message.receive_v1` event. The Hub
|
||||
// forwards through the Dispatcher.
|
||||
// - (zero, false, nil) — heartbeat-shaped JSON or an event_type we
|
||||
// don't yet handle (im.chat.access_event_v1, etc.). The connector
|
||||
// drops these silently and still sends a 200 ACK to Lark so the
|
||||
// server stops resending.
|
||||
// - (zero, false, err) — malformed JSON or schema we couldn't
|
||||
// parse. The connector logs + drops the single frame; the WS
|
||||
// connection stays up because one bad payload shouldn't amplify
|
||||
// into a reconnect storm.
|
||||
//
|
||||
// The Lark wire shape is the documented "p2_im_message_receive_v1"
|
||||
// envelope; the broad outline is stable but Lark periodically adds
|
||||
// fields. We extract only what the Dispatcher's InboundMessage needs
|
||||
// and ignore the rest, which keeps the decoder forwards-compatible.
|
||||
// The decoder is stateless and goroutine-safe — a single instance
|
||||
// serves every supervisor goroutine.
|
||||
type LarkJSONFrameDecoder struct{}
|
||||
|
||||
// NewLarkJSONFrameDecoder constructs the default Lark JSON decoder.
|
||||
// The decoder holds no per-installation state, so a single instance
|
||||
// can serve every supervisor goroutine.
|
||||
func NewLarkJSONFrameDecoder() *LarkJSONFrameDecoder { return &LarkJSONFrameDecoder{} }
|
||||
|
||||
// Decode implements FrameDecoder.
|
||||
func (d *LarkJSONFrameDecoder) Decode(raw []byte, inst db.LarkInstallation) (InboundMessage, bool, error) {
|
||||
if len(raw) == 0 {
|
||||
func (d *LarkJSONFrameDecoder) Decode(payload []byte, inst db.LarkInstallation) (InboundMessage, bool, error) {
|
||||
if len(payload) == 0 {
|
||||
return InboundMessage{}, false, nil
|
||||
}
|
||||
var env larkEventEnvelope
|
||||
if err := json.Unmarshal(raw, &env); err != nil {
|
||||
if err := json.Unmarshal(payload, &env); err != nil {
|
||||
return InboundMessage{}, false, fmt.Errorf("envelope: %w", err)
|
||||
}
|
||||
|
||||
// Heartbeats and acks come through with type=="heartbeat" or
|
||||
// "frame_ack" depending on the protocol version. Any frame that
|
||||
// is not an event_callback is dropped silently — including new
|
||||
// kinds Lark might introduce that we have not taught the
|
||||
// dispatcher about.
|
||||
// Lark long-conn data frames are always v2 event envelopes
|
||||
// (schema "2.0"). The legacy webhook v1 "type":"event_callback"
|
||||
// shape is not used on long-conn — we accept it defensively in
|
||||
// case Lark adds a back-compat mode, but the canonical path is
|
||||
// schema-driven.
|
||||
if env.Type != "" && env.Type != "event_callback" {
|
||||
return InboundMessage{}, false, nil
|
||||
}
|
||||
|
||||
// Validate the event header. The schema field discriminates
|
||||
// payload shape; we only handle the documented v2.0 message-receive
|
||||
// event in MVP, and drop everything else with a structured warning
|
||||
// (returned to the caller as a non-error "ok=false").
|
||||
if env.Header.EventType != "im.message.receive_v1" {
|
||||
return InboundMessage{}, false, nil
|
||||
}
|
||||
@@ -84,21 +75,11 @@ func (d *LarkJSONFrameDecoder) Decode(raw []byte, inst db.LarkInstallation) (Inb
|
||||
SenderOpenID: OpenID(evt.Sender.SenderID.OpenID),
|
||||
}
|
||||
|
||||
// The body field for text messages carries a stringified JSON
|
||||
// object like `{"text":"..."}`; we extract just the text so the
|
||||
// dispatcher and the /issue parser see a plain string. Other
|
||||
// message types (image, file, post) are not in MVP scope and
|
||||
// surface as empty bodies — the dispatcher will still record the
|
||||
// chat_message, just with no content.
|
||||
switch evt.Message.MessageType {
|
||||
case "text":
|
||||
msg.Body = extractTextBody(evt.Message.Content)
|
||||
}
|
||||
|
||||
// Group-mention discrimination: the WS payload includes a
|
||||
// `mentions` array; we set AddressedToBot=true when the
|
||||
// installation's bot_open_id appears there. Direct messages
|
||||
// (p2p) ignore the field per InboundMessage doc.
|
||||
if msg.ChatType == ChatTypeGroup {
|
||||
msg.AddressedToBot = containsMention(evt.Message.Mentions, inst.BotOpenID)
|
||||
}
|
||||
@@ -107,13 +88,11 @@ func (d *LarkJSONFrameDecoder) Decode(raw []byte, inst db.LarkInstallation) (Inb
|
||||
}
|
||||
|
||||
// larkEventEnvelope mirrors the outer JSON Lark wraps every push in.
|
||||
// We keep Event as raw JSON so payload-shape changes for individual
|
||||
// event types do not force a decoder revision.
|
||||
type larkEventEnvelope struct {
|
||||
Type string `json:"type"`
|
||||
Header larkEventHeader `json:"header"`
|
||||
Event json.RawMessage `json:"event"`
|
||||
Schema string `json:"schema"`
|
||||
Schema string `json:"schema"`
|
||||
Type string `json:"type"`
|
||||
Header larkEventHeader `json:"header"`
|
||||
Event json.RawMessage `json:"event"`
|
||||
}
|
||||
|
||||
type larkEventHeader struct {
|
||||
@@ -125,7 +104,7 @@ type larkEventHeader struct {
|
||||
}
|
||||
|
||||
// larkMessageReceiveEvent is the documented payload of
|
||||
// im.message.receive_v1. Field names follow Lark's snake_case JSON.
|
||||
// im.message.receive_v1.
|
||||
type larkMessageReceiveEvent struct {
|
||||
Sender struct {
|
||||
SenderID struct {
|
||||
@@ -137,13 +116,13 @@ type larkMessageReceiveEvent struct {
|
||||
TenantKey string `json:"tenant_key"`
|
||||
} `json:"sender"`
|
||||
Message struct {
|
||||
MessageID string `json:"message_id"`
|
||||
ChatID string `json:"chat_id"`
|
||||
ChatType string `json:"chat_type"`
|
||||
MessageType string `json:"message_type"`
|
||||
Content string `json:"content"`
|
||||
Mentions []larkMention `json:"mentions"`
|
||||
CreateTime string `json:"create_time"`
|
||||
MessageID string `json:"message_id"`
|
||||
ChatID string `json:"chat_id"`
|
||||
ChatType string `json:"chat_type"`
|
||||
MessageType string `json:"message_type"`
|
||||
Content string `json:"content"`
|
||||
Mentions []larkMention `json:"mentions"`
|
||||
CreateTime string `json:"create_time"`
|
||||
} `json:"message"`
|
||||
}
|
||||
|
||||
@@ -165,9 +144,6 @@ func extractTextBody(content string) string {
|
||||
Text string `json:"text"`
|
||||
}
|
||||
if err := json.Unmarshal([]byte(content), &doc); err != nil {
|
||||
// Lark's text content is always a JSON object; if unmarshal
|
||||
// fails we leave Body empty rather than dump the raw envelope
|
||||
// into chat_session.
|
||||
return ""
|
||||
}
|
||||
return doc.Text
|
||||
|
||||
@@ -0,0 +1,141 @@
|
||||
package lark
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"testing"
|
||||
)
|
||||
|
||||
// TestFrameRoundTripPreservesAllFields ensures every set field on the
|
||||
// outbound Frame survives marshal+unmarshal. Field-tag mismatches
|
||||
// against the SDK's pbbp2.Frame would silently corrupt frames on the
|
||||
// wire — this test plus the explicit field numbers in ws_frame.go are
|
||||
// the only checks that catch that.
|
||||
func TestFrameRoundTripPreservesAllFields(t *testing.T) {
|
||||
t.Parallel()
|
||||
in := &Frame{
|
||||
SeqID: 42,
|
||||
LogID: 99,
|
||||
Service: 7,
|
||||
Method: FrameMethodData,
|
||||
Headers: []FrameHeader{{Key: "type", Value: "event"}, {Key: "message_id", Value: "om-1"}},
|
||||
PayloadEncoding: "json",
|
||||
PayloadType: "im.message.receive_v1",
|
||||
Payload: []byte(`{"schema":"2.0"}`),
|
||||
LogIDNew: "log-new",
|
||||
}
|
||||
out, err := UnmarshalFrame(in.Marshal())
|
||||
if err != nil {
|
||||
t.Fatalf("UnmarshalFrame: %v", err)
|
||||
}
|
||||
if out.SeqID != in.SeqID || out.LogID != in.LogID || out.Service != in.Service || out.Method != in.Method {
|
||||
t.Errorf("scalar fields differ: in=%+v out=%+v", in, out)
|
||||
}
|
||||
if len(out.Headers) != len(in.Headers) {
|
||||
t.Fatalf("Headers len = %d; want %d", len(out.Headers), len(in.Headers))
|
||||
}
|
||||
for i, h := range out.Headers {
|
||||
if h != in.Headers[i] {
|
||||
t.Errorf("Headers[%d] = %+v; want %+v", i, h, in.Headers[i])
|
||||
}
|
||||
}
|
||||
if out.PayloadEncoding != in.PayloadEncoding {
|
||||
t.Errorf("PayloadEncoding = %q; want %q", out.PayloadEncoding, in.PayloadEncoding)
|
||||
}
|
||||
if out.PayloadType != in.PayloadType {
|
||||
t.Errorf("PayloadType = %q; want %q", out.PayloadType, in.PayloadType)
|
||||
}
|
||||
if !bytes.Equal(out.Payload, in.Payload) {
|
||||
t.Errorf("Payload = %q; want %q", string(out.Payload), string(in.Payload))
|
||||
}
|
||||
if out.LogIDNew != in.LogIDNew {
|
||||
t.Errorf("LogIDNew = %q; want %q", out.LogIDNew, in.LogIDNew)
|
||||
}
|
||||
}
|
||||
|
||||
func TestFrameOmitsZeroFields(t *testing.T) {
|
||||
t.Parallel()
|
||||
// A minimal ping frame: Method=Control(0), Service=7, single
|
||||
// header. Method=0 is proto3 default and skipped by the
|
||||
// marshaller, so the encoded bytes contain only Service + Headers.
|
||||
ping := NewPingFrame(7)
|
||||
raw := ping.Marshal()
|
||||
if len(raw) == 0 {
|
||||
t.Fatal("ping marshal produced empty buffer")
|
||||
}
|
||||
out, err := UnmarshalFrame(raw)
|
||||
if err != nil {
|
||||
t.Fatalf("UnmarshalFrame: %v", err)
|
||||
}
|
||||
if out.Method != FrameMethodControl {
|
||||
t.Errorf("Method = %d; want Control", out.Method)
|
||||
}
|
||||
if out.Service != 7 {
|
||||
t.Errorf("Service = %d; want 7", out.Service)
|
||||
}
|
||||
if v := out.HeaderValue(FrameHeaderTypeKey); v != FrameHeaderTypePing {
|
||||
t.Errorf("type header = %q; want ping", v)
|
||||
}
|
||||
if out.SeqID != 0 || out.LogID != 0 || len(out.Payload) != 0 {
|
||||
t.Errorf("unset fields populated: %+v", out)
|
||||
}
|
||||
}
|
||||
|
||||
func TestNewAckFrameReusesInboundHeaders(t *testing.T) {
|
||||
t.Parallel()
|
||||
inbound := &Frame{
|
||||
Method: FrameMethodData,
|
||||
Service: 7,
|
||||
Headers: []FrameHeader{
|
||||
{Key: FrameHeaderTypeKey, Value: FrameHeaderTypeEvent},
|
||||
{Key: FrameHeaderMessageIDKey, Value: "om-42"},
|
||||
},
|
||||
}
|
||||
ack := NewAckFrame(inbound, true)
|
||||
if ack.Method != inbound.Method || ack.Service != inbound.Service {
|
||||
t.Errorf("ack method/service mismatch")
|
||||
}
|
||||
if len(ack.Headers) != len(inbound.Headers) {
|
||||
t.Errorf("ack headers length mismatch")
|
||||
}
|
||||
if ack.HeaderValue(FrameHeaderMessageIDKey) != "om-42" {
|
||||
t.Errorf("ack should echo message_id; got %q", ack.HeaderValue(FrameHeaderMessageIDKey))
|
||||
}
|
||||
if !contains(string(ack.Payload), `"code":200`) {
|
||||
t.Errorf("ack payload missing code=200: %s", string(ack.Payload))
|
||||
}
|
||||
|
||||
nack := NewAckFrame(inbound, false)
|
||||
if !contains(string(nack.Payload), `"code":500`) {
|
||||
t.Errorf("nack payload missing code=500: %s", string(nack.Payload))
|
||||
}
|
||||
}
|
||||
|
||||
func TestUnmarshalFrameRejectsTruncatedBuffer(t *testing.T) {
|
||||
t.Parallel()
|
||||
if _, err := UnmarshalFrame(nil); err == nil {
|
||||
t.Error("expected error on empty buffer")
|
||||
}
|
||||
// Tag byte for field 1 (varint) with no following varint payload.
|
||||
if _, err := UnmarshalFrame([]byte{0x08}); err == nil {
|
||||
t.Error("expected error on truncated varint")
|
||||
}
|
||||
}
|
||||
|
||||
func TestUnmarshalFrameSkipsUnknownFields(t *testing.T) {
|
||||
t.Parallel()
|
||||
// Construct a buffer with one known field (Service=3, value=5)
|
||||
// and one unknown field (number 31, varint=99). The unknown
|
||||
// field MUST be skipped, not rejected.
|
||||
buf := []byte{}
|
||||
// field 3 (varint): tag = 3<<3|0 = 0x18, value = 5
|
||||
buf = append(buf, 0x18, 0x05)
|
||||
// field 31 (varint): tag = 31<<3|0 = 0xF8 0x01, value = 99 (0x63)
|
||||
buf = append(buf, 0xF8, 0x01, 0x63)
|
||||
f, err := UnmarshalFrame(buf)
|
||||
if err != nil {
|
||||
t.Fatalf("expected unknown field to be skipped, got error: %v", err)
|
||||
}
|
||||
if f.Service != 5 {
|
||||
t.Errorf("Service = %d; want 5", f.Service)
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user