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Server-side support for protocol 2.

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The "time" field of messages is now a string in RFC 3339 format,
and there is a new "error" field in messages.
This commit is contained in:
Juliusz Chroboczek 2022-12-16 18:56:36 +01:00
parent c58064d923
commit a1c1345719
3 changed files with 19 additions and 43 deletions
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18
group/group.go
View file

@ -60,7 +60,7 @@ func (err ProtocolError) Error() string {
type ChatHistoryEntry struct {
Id string
User string
Time int64
Time time.Time
Kind string
Value interface{}
}
@ -760,18 +760,6 @@ func (g *Group) WallOps(message string) {
}
}
func FromJSTime(tm int64) time.Time {
if tm == 0 {
return time.Time{}
}
return time.Unix(int64(tm)/1000, (int64(tm)%1000)*1000000)
}
func ToJSTime(tm time.Time) int64 {
return int64((tm.Sub(time.Unix(0, 0)) + time.Millisecond/2) /
time.Millisecond)
}
const maxChatHistory = 50
func (g *Group) ClearChatHistory() {
@ -780,7 +768,7 @@ func (g *Group) ClearChatHistory() {
g.history = nil
}
func (g *Group) AddToChatHistory(id, user string, time int64, kind string, value interface{}) {
func (g *Group) AddToChatHistory(id, user string, time time.Time, kind string, value interface{}) {
g.mu.Lock()
defer g.mu.Unlock()
@ -796,7 +784,7 @@ func (g *Group) AddToChatHistory(id, user string, time int64, kind string, value
func discardObsoleteHistory(h []ChatHistoryEntry, duration time.Duration) []ChatHistoryEntry {
i := 0
for i < len(h) {
if time.Since(FromJSTime(h[i].Time)) <= duration {
if time.Since(h[i].Time) <= duration {
break
}
i++

18
group/group_test.go
View file

@ -47,28 +47,12 @@ func TestGroup(t *testing.T) {
}
}
func TestJSTime(t *testing.T) {
tm := time.Now()
js := ToJSTime(tm)
tm2 := FromJSTime(js)
js2 := ToJSTime(tm2)
if js != js2 {
t.Errorf("%v != %v", js, js2)
}
delta := tm.Sub(tm2)
if delta < -time.Millisecond/2 || delta > time.Millisecond/2 {
t.Errorf("Delta %v, %v, %v", delta, tm, tm2)
}
}
func TestChatHistory(t *testing.T) {
g := Group{
description: &Description{},
}
for i := 0; i < 2*maxChatHistory; i++ {
g.AddToChatHistory("id", "user", ToJSTime(time.Now()), "",
g.AddToChatHistory("id", "user", time.Now(), "",
fmt.Sprintf("%v", i),
)
}

26
rtpconn/webclient.go
View file

@ -112,6 +112,7 @@ type clientMessage struct {
Type string `json:"type"`
Version []string `json:"version"`
Kind string `json:"kind,omitempty"`
Error string `json:"error,omitempty"`
Id string `json:"id,omitempty"`
Replace string `json:"replace,omitempty"`
Source string `json:"source,omitempty"`
@ -126,7 +127,7 @@ type clientMessage struct {
Group string `json:"group,omitempty"`
Value interface{} `json:"value,omitempty"`
NoEcho bool `json:"noecho,omitempty"`
Time int64 `json:"time,omitempty"`
Time string `json:"time,omitempty"`
SDP string `json:"sdp,omitempty"`
Candidate *webrtc.ICECandidateInit `json:"candidate,omitempty"`
Label string `json:"label,omitempty"`
@ -834,6 +835,8 @@ func readMessage(conn *websocket.Conn, m *clientMessage) error {
return conn.ReadJSON(&m)
}
const protocolVersion = "2"
func StartClient(conn *websocket.Conn) (err error) {
var m clientMessage
@ -858,7 +861,7 @@ func StartClient(conn *websocket.Conn) (err error) {
versionError := true
if m.Version != nil {
for _, v := range m.Version {
if v == "1" {
if v == protocolVersion {
versionError = false
}
}
@ -973,7 +976,7 @@ func clientLoop(c *webClient, ws *websocket.Conn, versionError bool) error {
err := c.write(clientMessage{
Type: "handshake",
Version: []string{"1"},
Version: []string{protocolVersion},
})
if err != nil {
return err
@ -1203,7 +1206,7 @@ func handleAction(c *webClient, a interface{}) error {
Type: "chathistory",
Source: m.Id,
Username: m.User,
Time: m.Time,
Time: m.Time.Format(time.RFC3339),
Value: m.Value,
Kind: m.Kind,
})
@ -1418,7 +1421,7 @@ func handleClientMessage(c *webClient, m clientMessage) error {
},
)
if err != nil {
var s string
var e, s string
if os.IsNotExist(err) {
s = "group does not exist"
} else if err == group.ErrNotAuthorised {
@ -1426,8 +1429,8 @@ func handleClientMessage(c *webClient, m clientMessage) error {
time.Sleep(200 * time.Millisecond)
} else if err == group.ErrAnonymousNotAuthorised {
s = "please choose a username"
} else if e, ok := err.(group.UserError); ok {
s = string(e)
} else if err, ok := err.(group.UserError); ok {
s = err.Error()
} else {
s = "internal server error"
log.Printf("Join group: %v", err)
@ -1435,6 +1438,7 @@ func handleClientMessage(c *webClient, m clientMessage) error {
return c.write(clientMessage{
Type: "joined",
Kind: "fail",
Error: e,
Group: m.Group,
Username: c.username,
Value: s,
@ -1559,12 +1563,12 @@ func handleClientMessage(c *webClient, m clientMessage) error {
return c.error(group.UserError("join a group first"))
}
tm := group.ToJSTime(time.Now())
now := time.Now()
if m.Type == "chat" {
if m.Dest == "" {
g.AddToChatHistory(
m.Source, m.Username, tm, m.Kind, m.Value,
m.Source, m.Username, now, m.Kind, m.Value,
)
}
}
@ -1574,7 +1578,7 @@ func handleClientMessage(c *webClient, m clientMessage) error {
Dest: m.Dest,
Username: m.Username,
Privileged: member("op", c.permissions),
Time: tm,
Time: now.Format(time.RFC3339),
Kind: m.Kind,
NoEcho: m.NoEcho,
Value: m.Value,
@ -1677,7 +1681,7 @@ func handleClientMessage(c *webClient, m clientMessage) error {
Type: "chat",
Dest: c.id,
Username: "Server",
Time: group.ToJSTime(time.Now()),
Time: time.Now().Format(time.RFC3339),
Value: s,
})
case "setdata":