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Only emit key change notifications from federation when changes are made (#2217)
* Only emit key changes when poked over federation * Remove logging * Fix unit test possibly
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bbe7d37928
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@ -241,14 +241,33 @@ func (u *DeviceListUpdater) update(ctx context.Context, event gomatrixserverlib.
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StreamID: event.StreamID,
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},
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}
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// DeviceKeysJSON will side-effect modify this, so it needs
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// to be a copy, not sharing any pointers with the above.
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deviceKeysCopy := *keys[0].DeviceKeys
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deviceKeysCopy.KeyJSON = nil
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existingKeys := []api.DeviceMessage{
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{
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Type: keys[0].Type,
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DeviceKeys: &deviceKeysCopy,
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StreamID: keys[0].StreamID,
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},
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}
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// fetch what keys we had already and only emit changes
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if err = u.db.DeviceKeysJSON(ctx, existingKeys); err != nil {
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// non-fatal, log and continue
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util.GetLogger(ctx).WithError(err).WithField("user_id", event.UserID).Errorf(
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"failed to query device keys json for calculating diffs",
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)
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}
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err = u.db.StoreRemoteDeviceKeys(ctx, keys, nil)
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if err != nil {
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return false, fmt.Errorf("failed to store remote device keys for %s (%s): %w", event.UserID, event.DeviceID, err)
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}
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// ALWAYS emit key changes when we've been poked over federation even if there's no change
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// just in case this poke is important for something.
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err = u.producer.ProduceKeyChanges(keys)
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if err != nil {
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if err = emitDeviceKeyChanges(u.producer, existingKeys, keys); err != nil {
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return false, fmt.Errorf("failed to produce device key changes for %s (%s): %w", event.UserID, event.DeviceID, err)
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}
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return false, nil
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