BareRTC/pkg/messages/messages.go

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package messages
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import (
"sync"
"time"
)
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// Auto incrementing Message ID for anything pushed out by the server.
var (
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messageID = time.Now().Unix()
mu sync.Mutex
)
// NextMessageID atomically increments and returns a new MessageID.
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func NextMessageID() int64 {
mu.Lock()
defer mu.Unlock()
messageID++
var mid = messageID
return mid
}
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/*
Message is the basic carrier of WebSocket chat protocol actions.
Every message (client or server) has an Action and the rest of the
fields may vary depending on the action. Many messages target (or carry)
a Username, chat Channel and carry an arbitrary Message.
*/
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type Message struct {
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Action string `json:"action,omitempty"`
Channel string `json:"channel,omitempty"`
Username string `json:"username,omitempty"`
Message string `json:"message,omitempty"`
// JWT token for `login` actions.
JWTToken string `json:"jwt,omitempty"`
// WhoList for `who` actions
WhoList []WhoList `json:"whoList,omitempty"`
// Sent on `me` actions along with Username
VideoStatus int `json:"video,omitempty"` // user video flags
ChatStatus string `json:"status,omitempty"` // online vs. away
DND bool `json:"dnd,omitempty"` // Do Not Disturb, e.g. DMs are closed
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// Message ID to support takebacks/local deletions
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MessageID int64 `json:"msgID,omitempty"`
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// Sent on `open` actions along with the (other) Username.
OpenSecret string `json:"openSecret,omitempty"`
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// Send on `file` actions, passing e.g. image data.
Bytes []byte `json:"bytes,omitempty"`
// Send on `blocklist` actions, for doing a `mute` on a list of users
Usernames []string `json:"usernames,omitempty"`
// Sent on `report` actions.
Timestamp string `json:"timestamp,omitempty"`
Reason string `json:"reason,omitempty"`
Comment string `json:"comment,omitempty"`
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// WebRTC negotiation messages: proxy their signaling messages
// between the two users to negotiate peer connection.
Candidate string `json:"candidate,omitempty"` // candidate
Description string `json:"description,omitempty"` // sdp
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}
const (
// Actions sent by the client side only
ActionLogin = "login" // post the username to backend
ActionBoot = "boot" // boot a user off your video feed
ActionUnboot = "unboot" // unboot a user
ActionMute = "mute" // mute a user's chat messages
ActionUnmute = "unmute"
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ActionBlock = "block" // hard block another user
ActionBlocklist = "blocklist" // mute in bulk for usernames
ActionReport = "report" // user reports a message
// Actions sent by server or client
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ActionMessage = "message" // post a message to the room
ActionMe = "me" // user self-info sent by FE or BE
ActionOpen = "open" // user wants to view a webcam (open WebRTC)
ActionRing = "ring" // receiver of a WebRTC open request
ActionWatch = "watch" // user has received video and is watching you
ActionUnwatch = "unwatch" // user has closed your video
ActionFile = "file" // image sharing in chat
ActionTakeback = "takeback" // user takes back (deletes) their message for everybody
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ActionReact = "react" // emoji reaction to a chat message
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ActionTyping = "typing" // typing indicator for DM threads
// Actions sent by server only
ActionPing = "ping"
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ActionWhoList = "who" // server pushes the Who List
ActionPresence = "presence" // a user joined or left the room
ActionCut = "cut" // tell the client to turn off their webcam
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ActionError = "error" // ChatServer errors
ActionKick = "disconnect" // client should disconnect (e.g. have been kicked).
// WebRTC signaling messages.
ActionCandidate = "candidate"
ActionSDP = "sdp"
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)
// WhoList is a member entry in the chat room.
type WhoList struct {
Username string `json:"username"`
Nickname string `json:"nickname,omitempty"`
Status string `json:"status"`
Video int `json:"video"`
DND bool `json:"dnd,omitempty"`
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LoginAt int64 `json:"loginAt"`
// JWT auth extra settings.
Operator bool `json:"op"`
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VIP bool `json:"vip,omitempty"`
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Avatar string `json:"avatar,omitempty"`
ProfileURL string `json:"profileURL,omitempty"`
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Emoji string `json:"emoji,omitempty"`
Gender string `json:"gender,omitempty"`
}
// VideoFlags to convey the state and setting of users' cameras concisely.
// Also see the VideoFlag object in BareRTC.js for front-end sync.
const (
VideoFlagActive int = 1 << iota // user's camera is enabled/broadcasting
VideoFlagNSFW // viewer's camera is marked as NSFW
VideoFlagMuted // user source microphone is muted
VideoFlagNonExplicit // viewer prefers not to see NSFW cameras (don't auto-open red cams/auto-close blue cams going red)
VideoFlagMutualRequired // video wants viewers to share their camera too
VideoFlagMutualOpen // viewer wants to auto-open viewers' cameras
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VideoFlagOnlyVIP // can only shows as active to VIP members
)
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// Presence message templates.
const (
PresenceJoined = "has joined the room!"
PresenceExited = "has exited the room!"
PresenceKicked = "has been kicked from the room!"
PresenceBanned = "has been banned!"
PresenceTimedOut = "has timed out!"
)