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Remove default relay pattern option from broker

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This was only useful to us when we first implemented the feature, to be
able to support proxies that hadn't yet updated, when we had a single
Snowflake bridge. Now that we have multiple bridges, it is unecessary as
proxies that don't send their accepted relay pattern are rejected
anyway.
This commit is contained in:
Cecylia Bocovich 2025-03-18 13:25:00 -04:00
parent c0ac0186f1
commit dd5fb03c49
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GPG key ID: 009DE379FD9B7B90
3 changed files with 31 additions and 35 deletions
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30
broker/broker.go
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@ -44,9 +44,8 @@ type BrokerContext struct {
proxyPolls chan *ProxyPoll
metrics *Metrics
bridgeList BridgeListHolderFileBased
allowedRelayPattern string
presumedPatternForLegacyClient string
bridgeList BridgeListHolderFileBased
allowedRelayPattern string
}
func (ctx *BrokerContext) GetBridgeInfo(fingerprint bridgefingerprint.Fingerprint) (BridgeInfo, error) {
@ -55,8 +54,7 @@ func (ctx *BrokerContext) GetBridgeInfo(fingerprint bridgefingerprint.Fingerprin
func NewBrokerContext(
metricsLogger *log.Logger,
allowedRelayPattern,
presumedPatternForLegacyClient string,
allowedRelayPattern string,
) *BrokerContext {
snowflakes := new(SnowflakeHeap)
heap.Init(snowflakes)
@ -79,14 +77,13 @@ func NewBrokerContext(
bridgeListHolder.LoadBridgeInfo(bytes.NewReader([]byte(DefaultBridges)))
return &BrokerContext{
snowflakes: snowflakes,
restrictedSnowflakes: rSnowflakes,
idToSnowflake: make(map[string]*Snowflake),
proxyPolls: make(chan *ProxyPoll),
metrics: metrics,
bridgeList: bridgeListHolder,
allowedRelayPattern: allowedRelayPattern,
presumedPatternForLegacyClient: presumedPatternForLegacyClient,
snowflakes: snowflakes,
restrictedSnowflakes: rSnowflakes,
idToSnowflake: make(map[string]*Snowflake),
proxyPolls: make(chan *ProxyPoll),
metrics: metrics,
bridgeList: bridgeListHolder,
allowedRelayPattern: allowedRelayPattern,
}
}
@ -176,7 +173,7 @@ func (ctx *BrokerContext) InstallBridgeListProfile(reader io.Reader) error {
func (ctx *BrokerContext) CheckProxyRelayPattern(pattern string, nonSupported bool) bool {
if nonSupported {
pattern = ctx.presumedPatternForLegacyClient
return false
}
proxyPattern := namematcher.NewNameMatcher(pattern)
brokerPattern := namematcher.NewNameMatcher(ctx.allowedRelayPattern)
@ -197,7 +194,7 @@ func main() {
var addr string
var geoipDatabase string
var geoip6Database string
var bridgeListFilePath, allowedRelayPattern, presumedPatternForLegacyClient string
var bridgeListFilePath, allowedRelayPattern string
var brokerSQSQueueName, brokerSQSQueueRegion string
var disableTLS bool
var certFilename, keyFilename string
@ -215,7 +212,6 @@ func main() {
flag.StringVar(&geoip6Database, "geoip6db", "/usr/share/tor/geoip6", "path to correctly formatted geoip database mapping IPv6 address ranges to country codes")
flag.StringVar(&bridgeListFilePath, "bridge-list-path", "", "file path for bridgeListFile")
flag.StringVar(&allowedRelayPattern, "allowed-relay-pattern", "", "allowed pattern for relay host name. The broker will reject proxies whose AcceptedRelayPattern is more restrictive than this")
flag.StringVar(&presumedPatternForLegacyClient, "default-relay-pattern", "", "presumed pattern for legacy client")
flag.StringVar(&brokerSQSQueueName, "broker-sqs-name", "", "name of broker SQS queue to listen for incoming messages on")
flag.StringVar(&brokerSQSQueueRegion, "broker-sqs-region", "", "name of AWS region of broker SQS queue")
flag.BoolVar(&disableTLS, "disable-tls", false, "don't use HTTPS")
@ -248,7 +244,7 @@ func main() {
metricsLogger := log.New(metricsFile, "", 0)
ctx := NewBrokerContext(metricsLogger, allowedRelayPattern, presumedPatternForLegacyClient)
ctx := NewBrokerContext(metricsLogger, allowedRelayPattern)
if bridgeListFilePath != "" {
bridgeListFile, err := os.Open(bridgeListFilePath)