mleku
bc8a557f07
- Updated context creation in HandleCount and HandleReq to use context.Background() instead of the connection context, isolating timeouts to prevent affecting long-lived websocket connections. - Improved comments for clarity on the purpose of the context changes. - bump version to v0.17.17
80 lines
2.2 KiB
Go
80 lines
2.2 KiB
Go
package app
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import (
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"context"
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"errors"
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"fmt"
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"time"
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"lol.mleku.dev/chk"
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"lol.mleku.dev/log"
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"next.orly.dev/pkg/acl"
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"next.orly.dev/pkg/encoders/envelopes/authenvelope"
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"next.orly.dev/pkg/encoders/envelopes/countenvelope"
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"next.orly.dev/pkg/utils/normalize"
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)
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// HandleCount processes a COUNT envelope by parsing the request, verifying
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// permissions, invoking the database CountEvents for each provided filter, and
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// responding with a COUNT response containing the aggregate count.
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func (l *Listener) HandleCount(msg []byte) (err error) {
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log.D.F("HandleCount: START processing from %s", l.remote)
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// Parse the COUNT request
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env := countenvelope.New()
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if _, err = env.Unmarshal(msg); chk.E(err) {
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return normalize.Error.Errorf(err.Error())
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}
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log.D.C(func() string { return fmt.Sprintf("COUNT sub=%s filters=%d", env.Subscription, len(env.Filters)) })
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// If ACL is active, send a challenge (same as REQ path)
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if acl.Registry.Active.Load() != "none" {
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if err = authenvelope.NewChallengeWith(l.challenge.Load()).Write(l); chk.E(err) {
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return
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}
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}
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// Check read permissions
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accessLevel := acl.Registry.GetAccessLevel(l.authedPubkey.Load(), l.remote)
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switch accessLevel {
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case "none":
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return errors.New("auth required: user not authed or has no read access")
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default:
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// allowed to read
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}
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// Use a bounded context for counting, isolated from the connection context
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// to prevent count timeouts from affecting the long-lived websocket connection
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ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
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defer cancel()
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// Aggregate count across all provided filters
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var total int
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var approx bool // database returns false per implementation
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for _, f := range env.Filters {
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if f == nil {
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continue
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}
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var cnt int
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var a bool
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cnt, a, err = l.D.CountEvents(ctx, f)
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if chk.E(err) {
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return
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}
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total += cnt
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approx = approx || a
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}
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// Build and send COUNT response
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var res *countenvelope.Response
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if res, err = countenvelope.NewResponseFrom(env.Subscription, total, approx); chk.E(err) {
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return
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}
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if err = res.Write(l); chk.E(err) {
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return
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}
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log.D.F("HandleCount: COMPLETED processing from %s count=%d approx=%v", l.remote, total, approx)
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return nil
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}
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