mirror of
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake.git
synced 2025-10-13 11:11:30 -04:00
126 lines
3.2 KiB
Go
126 lines
3.2 KiB
Go
package event
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import (
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"fmt"
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"time"
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"github.com/pion/webrtc/v4"
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"gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/ptutil/safelog"
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)
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type SnowflakeEvent interface {
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IsSnowflakeEvent()
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String() string
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}
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type EventOnOfferCreated struct {
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SnowflakeEvent
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WebRTCLocalDescription *webrtc.SessionDescription
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Error error
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}
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func (e EventOnOfferCreated) String() string {
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if e.Error != nil {
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scrubbed := safelog.Scrub([]byte(e.Error.Error()))
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return fmt.Sprintf("offer creation failure %s", scrubbed)
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}
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return "offer created"
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}
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type EventOnBrokerRendezvous struct {
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SnowflakeEvent
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WebRTCRemoteDescription *webrtc.SessionDescription
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Error error
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}
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func (e EventOnBrokerRendezvous) String() string {
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if e.Error != nil {
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scrubbed := safelog.Scrub([]byte(e.Error.Error()))
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return fmt.Sprintf("broker failure %s", scrubbed)
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}
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return "broker rendezvous peer received"
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}
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type EventOnSnowflakeConnected struct {
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SnowflakeEvent
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}
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func (e EventOnSnowflakeConnected) String() string {
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return "connected"
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}
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type EventOnSnowflakeConnectionFailed struct {
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SnowflakeEvent
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Error error
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}
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func (e EventOnSnowflakeConnectionFailed) String() string {
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scrubbed := safelog.Scrub([]byte(e.Error.Error()))
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return fmt.Sprintf("trying a new proxy: %s", scrubbed)
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}
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type EventOnProxyStarting struct {
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SnowflakeEvent
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}
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func (e EventOnProxyStarting) String() string {
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return "Proxy starting"
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}
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type EventOnProxyClientConnected struct {
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SnowflakeEvent
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}
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func (e EventOnProxyClientConnected) String() string {
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return fmt.Sprintf("client connected")
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}
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type EventOnProxyConnectionOver struct {
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SnowflakeEvent
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Country string
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}
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func (e EventOnProxyConnectionOver) String() string {
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return fmt.Sprintf("Proxy connection closed")
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}
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type EventOnProxyStats struct {
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SnowflakeEvent
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ConnectionCount int
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InboundBytes, OutboundBytes int64
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InboundUnit, OutboundUnit string
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SummaryInterval time.Duration
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}
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func (e EventOnProxyStats) String() string {
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statString := fmt.Sprintf("In the last %v, there were %v completed connections. Traffic Relayed ↓ %v %v (%.2f %v%s), ↑ %v %v (%.2f %v%s).",
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e.SummaryInterval.String(), e.ConnectionCount,
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e.InboundBytes, e.InboundUnit, float64(e.InboundBytes)/e.SummaryInterval.Seconds(), e.InboundUnit, "/s",
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e.OutboundBytes, e.OutboundUnit, float64(e.OutboundBytes)/e.SummaryInterval.Seconds(), e.OutboundUnit, "/s")
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return statString
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}
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type EventOnCurrentNATTypeDetermined struct {
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SnowflakeEvent
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CurNATType string
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}
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func (e EventOnCurrentNATTypeDetermined) String() string {
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return fmt.Sprintf("NAT type: %v", e.CurNATType)
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}
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type SnowflakeEventReceiver interface {
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// OnNewSnowflakeEvent notify receiver about a new event
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// This method MUST not block
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OnNewSnowflakeEvent(event SnowflakeEvent)
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}
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type SnowflakeEventDispatcher interface {
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SnowflakeEventReceiver
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// AddSnowflakeEventListener allow receiver(s) to receive event notification
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// when OnNewSnowflakeEvent is called on the dispatcher.
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// Every event listener added will be called when an event is received by the dispatcher.
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// The order each listener is called is undefined.
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AddSnowflakeEventListener(receiver SnowflakeEventReceiver)
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RemoveSnowflakeEventListener(receiver SnowflakeEventReceiver)
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}
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