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Refactor claimRemoteKeys

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This commit is contained in:
Neil Alexander 2022-10-27 15:34:26 +01:00
parent a785532463
commit a2706e6498
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2 changed files with 28 additions and 37 deletions
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2
federationapi/internal/federationclient.go
View file

@ -44,7 +44,7 @@ func (a *FederationInternalAPI) ClaimKeys(
) (gomatrixserverlib.RespClaimKeys, error) {
ctx, cancel := context.WithTimeout(ctx, time.Second*30)
defer cancel()
ires, err := a.doRequestIfNotBackingOffOrBlacklisted(s, func() (interface{}, error) {
ires, err := a.doRequestIfNotBlacklisted(s, func() (interface{}, error) {
return a.federation.ClaimKeys(ctx, s, oneTimeKeys)
})
if err != nil {

63
keyserver/internal/internal.go
View file

@ -128,58 +128,49 @@ func (a *KeyInternalAPI) PerformClaimKeys(ctx context.Context, req *api.PerformC
func (a *KeyInternalAPI) claimRemoteKeys(
ctx context.Context, timeout time.Duration, res *api.PerformClaimKeysResponse, domainToDeviceKeys map[string]map[string]map[string]string,
) {
resultCh := make(chan *gomatrixserverlib.RespClaimKeys, len(domainToDeviceKeys))
// allows us to wait until all federation servers have been poked
var wg sync.WaitGroup
wg.Add(len(domainToDeviceKeys))
// mutex for failures
var failMu sync.Mutex
util.GetLogger(ctx).WithField("num_servers", len(domainToDeviceKeys)).Info("Claiming remote keys from servers")
var wg sync.WaitGroup // Wait for fan-out goroutines to finish
var mu sync.Mutex // Protects the response struct
var claimed int // Number of keys claimed in total
var failures int // Number of servers we failed to ask
util.GetLogger(ctx).Infof("Claiming remote keys from %d server(s)", len(domainToDeviceKeys))
wg.Add(len(domainToDeviceKeys))
// fan out
for d, k := range domainToDeviceKeys {
go func(domain string, keysToClaim map[string]map[string]string) {
defer wg.Done()
fedCtx, cancel := context.WithTimeout(ctx, timeout)
defer cancel()
defer wg.Done()
claimKeyRes, err := a.FedClient.ClaimKeys(fedCtx, gomatrixserverlib.ServerName(domain), keysToClaim)
mu.Lock()
defer mu.Unlock()
if err != nil {
util.GetLogger(ctx).WithError(err).WithField("server", domain).Error("ClaimKeys failed")
failMu.Lock()
res.Failures[domain] = map[string]interface{}{
"message": err.Error(),
}
failMu.Unlock()
failures++
return
}
resultCh <- &claimKeyRes
for userID, deviceIDToKeys := range claimKeyRes.OneTimeKeys {
res.OneTimeKeys[userID] = make(map[string]map[string]json.RawMessage)
for deviceID, keys := range deviceIDToKeys {
res.OneTimeKeys[userID][deviceID] = keys
claimed += len(keys)
}
}
}(d, k)
}
// Close the result channel when the goroutines have quit so the for .. range exits
go func() {
wg.Wait()
close(resultCh)
}()
keysClaimed := 0
for result := range resultCh {
for userID, nest := range result.OneTimeKeys {
res.OneTimeKeys[userID] = make(map[string]map[string]json.RawMessage)
for deviceID, nest2 := range nest {
res.OneTimeKeys[userID][deviceID] = make(map[string]json.RawMessage)
for keyIDWithAlgo, otk := range nest2 {
keyJSON, err := json.Marshal(otk)
if err != nil {
continue
}
res.OneTimeKeys[userID][deviceID][keyIDWithAlgo] = keyJSON
keysClaimed++
}
}
}
}
util.GetLogger(ctx).WithField("num_keys", keysClaimed).Info("Claimed remote keys")
wg.Wait()
util.GetLogger(ctx).WithFields(logrus.Fields{
"num_keys": claimed,
"num_failures": failures,
}).Infof("Claimed remote keys from %d server(s)", len(domainToDeviceKeys))
}
func (a *KeyInternalAPI) PerformDeleteKeys(ctx context.Context, req *api.PerformDeleteKeysRequest, res *api.PerformDeleteKeysResponse) error {