feat(plugins) Base plugins for rooms and permissions

This commit is contained in:
gh0sTedBuddy
2024-04-07 20:08:20 +01:00
parent 2a2a8c800f
commit 675ef2c5a7
3 changed files with 580 additions and 0 deletions

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/**
* Plugin for handling permissions.
*/
class PermissionsPlugin {
/**
* Predefined roles and their corresponding permissions.
*/
static defaultRoles = {
OWNER: 0o777,
ADMIN: 0o755,
MODERATOR: 0o644,
MEMBER: 0o444,
GUEST: 0o400,
};
/**
* Actions and their corresponding required permissions.
*/
static defaultActions = {
SEND_MESSAGE: 0o400,
MUTE_MEMBER: 0o200,
KICK_MEMBER: 0o200,
GRANT_PERMISSION: 0o100,
REVOKE_PERMISSION: 0o100,
ASSIGN_ROLE: 0o100,
};
/**
* Create a new instance of the PermissionsPlugin.
* @param {Object} [config={}] - The configuration object.
* @param {Object} [config.roles] - The custom roles and their corresponding permissions.
* @param {Object} [config.actions] - The custom actions and their corresponding required permissions.
*/
constructor(config = {}) {
this.roles = {
...PermissionsPlugin.defaultRoles,
...config.roles
};
this.actions = {
...PermissionsPlugin.defaultActions,
...config.actions
};
}
/**
* Initialize the plugin.
* @param {Object} server - The server instance.
*/
initialize(server) {
this.server = server;
this.contexts = new Map();
// Listen for the 'permissions:init' event
server.on('permissions:init', (pluginId, context, initContext) => {
const key = pluginId + context;
this.contexts.set(key, new Map());
initContext({
get: (...args) => this.getPermissions(key, ...args),
has: (...args) => this.hasPermission(key, ...args),
can: (...args) => this.hasPermission(key, ...args),
add: (...args) => this.grantPermission(key, ...args),
remove: (...args) => this.revokePermission(key, ...args),
role: (...args) => this.assignRole(key, ...args),
});
});
}
/**
* Get the permissions for the specified key and identifier.
* @param {string} key - The unique key identifying the plugin and context.
* @param {string} identifier - The identifier of the entity (e.g., user, member).
* @returns {Object} The permissions object.
*/
getPermissions(key, identifier) {
const context = this.contexts.get(key);
if (context) {
const permissions = context.get(identifier);
if (permissions) {
const result = {};
for (const [action, requiredPermission] of Object.entries(this.actions)) {
result[action] = this.hasPermission(permissions, requiredPermission);
}
return result;
}
}
return {};
}
/**
* Check if the specified key and identifier has the given permission.
* @param {string} key - The unique key identifying the plugin and context.
* @param {string} identifier - The identifier of the entity (e.g., user, member).
* @param {string} action - The action to check permissions for.
* @returns {boolean} True if the identifier has the permission, false otherwise.
*/
hasPermission(key, identifier, action) {
const context = this.contexts.get(key);
if (context) {
const permissions = context.get(identifier);
if (permissions) {
const requiredPermission = this.actions[action];
return (permissions & requiredPermission) === requiredPermission;
}
}
return false;
}
/**
* Grant permission to the specified key and identifier for the given action.
* @param {string} key - The unique key identifying the plugin and context.
* @param {string} identifier - The identifier of the entity (e.g., user, member).
* @param {string} action - The action to grant permission for.
*/
grantPermission(key, identifier, action) {
const context = this.contexts.get(key);
if (context) {
const permissions = context.get(identifier) || 0;
context.set(identifier, permissions | this.actions[action]);
}
}
/**
* Revoke permission from the specified key and identifier for the given action.
* @param {string} key - The unique key identifying the plugin and context.
* @param {string} identifier - The identifier of the entity (e.g., user, member).
* @param {string} action - The action to revoke permission for.
*/
revokePermission(key, identifier, action) {
const context = this.contexts.get(key);
if (context) {
const permissions = context.get(identifier);
if (permissions) {
context.set(identifier, permissions & ~this.actions[action]);
}
}
}
/**
* Assign a role to the specified key and identifier.
* @param {string} key - The unique key identifying the plugin and context.
* @param {string} identifier - The identifier of the entity (e.g., user, member).
* @param {string} role - The role to assign.
*/
assignRole(key, identifier, role) {
const context = this.contexts.get(key);
if (context) {
context.set(identifier, this.roles[role]);
}
}
}

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/**
* Represents a chat room.
*/
class Room {
/**
* Create a new room instance.
* @param {string} id - The unique identifier of the room.
* @param {Object} [config={}] - The configuration options for the room.
*/
constructor(id, config = {}) {
this.id = id;
this.members = new Map();
this.config = {
notifyMuteUnmute: config.notifyMuteUnmute || false,
notifyKick: config.notifyKick || false,
inactivityTimeout: config.inactivityTimeout || 60_000,
};
}
/**
* Add a member to the room.
* @param {string} memberId - The unique identifier of the member.
* @param {Object} memberData - Additional data associated with the member.
*/
add(memberId, memberData) {
this.members.set(memberId, {
...memberData,
lastActivity: Date.now(),
});
}
/**
* Remove a member from the room.
* @param {string} memberId - The unique identifier of the member.
*/
remove(memberId) {
this.members.delete(memberId);
}
/**
* Get the data of a member in the room.
* @param {string} memberId - The unique identifier of the member.
* @returns {Object|undefined} The member data or undefined if the member is not found.
*/
get(memberId) {
return this.members.get(memberId);
}
/**
* Check if a member is muted in the room.
* @param {string} memberId - The unique identifier of the member.
* @returns {boolean} True if the member is muted, false otherwise.
*/
isMuted(memberId) {
const memberData = this.get(memberId);
return memberData ? memberData.muted : false;
}
/**
* Check if a member is kicked from the room.
* @param {string} memberId - The unique identifier of the member.
* @returns {boolean} True if the member is kicked, false otherwise.
*/
isKicked(memberId) {
const memberData = this.get(memberId);
return memberData ? memberData.kicked : false;
}
/**
* Mute a member in the room.
* @param {string} memberId - The unique identifier of the member.
*/
mute(memberId) {
const memberData = this.get(memberId);
if (memberData) {
memberData.muted = true;
}
}
/**
* Unmute a member in the room.
* @param {string} memberId - The unique identifier of the member.
*/
unmute(memberId) {
const memberData = this.get(memberId);
if (memberData) {
memberData.muted = false;
}
}
/**
* Kick a member from the room.
* @param {string} memberId - The unique identifier of the member.
*/
kick(memberId) {
const memberData = this.get(memberId);
if (memberData) {
memberData.kicked = Date.now();
}
}
/**
* Update the last activity timestamp of a member in the room.
* @param {string} memberId - The unique identifier of the member.
*/
update(memberId) {
const memberData = this.get(memberId);
if (memberData) {
memberData.lastActivity = Date.now();
}
}
/**
* Purge inactive members from the room based on the inactivity timeout.
*/
purge() {
const now = Date.now();
for (const [memberId, memberData] of this.members.entries()) {
if (now - memberData.lastActivity > this.config.inactivityTimeout) {
this.kick(memberId);
}
}
}
}

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import BasePlugin from '../BasePlugin';
/**
* Plugin for handling room-related operations.
*/
export default class RoomPlugin extends BasePlugin {
#rooms = new Map();
#clients = new Map();
#config = {
allowMultipleRooms: true,
alwaysMainChannel: false,
notifyMuteUnmute: false,
notifyKick: false,
inactivityTimeout: 60_000,
};
/**
* Initialize the plugin.
* @param {Object} wetsock - The WetSock server instance.
* @param {Object} config - The configuration options for the plugin.
*/
initialize(wetsock, config = {}) {
super.initialize(wetsock);
this.#config = { ...this.#config, ...config };
wetsock.on('message', this.onMessage.bind(this));
wetsock.on('close', this.onClose.bind(this));
setInterval(this.#purge.bind(this), this.#config.inactivityTimeout);
}
/**
* Handle incoming messages from clients.
* @param {Object} client - The client object.
* @param {Object} message - The message object.
* @returns {boolean} - True if the message was handled, false otherwise.
*/
onMessage(client, message) {
if (typeof message === 'object' && message.type && this[message.type]) {
return this[message.type](client, message);
}
return false;
}
/**
* Handle a client disconnecting.
* @param {Object} client - The client object.
*/
onClose(client) {
const clientRooms = this.#clients.get(client.id);
if (clientRooms) {
for (const roomId of clientRooms) {
const room = this.#rooms.get(roomId);
if (room) {
room.members.delete(client.id);
this._getServer().publish(roomId, `${client.id} has left the room`);
}
}
this.#clients.delete(client.id);
}
}
actions () {
return Object.getOwnPropertyNames(
Object.getPrototypeOf(this)
).filter((prop) => {
return ![
"constructor",
"initialize",
"onMessage",
"onClose",
"actions"
].includes(prop) && typeof this[prop] === 'function'
});
}
/**
* Handle a client joining a room.
* @param {Object} client - The client object.
* @param {Object} message - The message object.
* @param {string} message.roomId - The ID of the room to join.
*/
join(client, { roomId }) {
const room = this.#rooms.get(roomId);
if (room) {
const memberData = room.members.get(client.id);
if (memberData && memberData.kicked) {
client.send({ type: 'error', message: 'You have been kicked from this room and cannot rejoin' });
return;
}
if (!this.#config.allowMultipleRooms && this.#clients.has(client.id)) {
client.send({ type: 'error', message: 'You can only be in one room at a time' });
return;
}
client.ws.subscribe(roomId);
room.add(client.id, {
muted: memberData ? memberData.muted : false,
lastActivity: Date.now()
});
this.#clients.set(client.id, (this.#clients.get(client.id) || new Set()).add(roomId));
this._getServer().publish(roomId, `${client.id} has joined the room`);
} else {
client.send({ type: 'error', message: `Room ${roomId} does not exist` });
}
}
/**
* Handle a client leaving a room.
* @param {Object} client - The client object.
* @param {Object} message - The message object.
* @param {string} message.roomId - The ID of the room to leave.
*/
leave(client, { roomId }) {
const room = this.#rooms.get(roomId);
if (room) {
client.ws.unsubscribe(roomId);
room.members.delete(client.id);
const clientRooms = this.#clients.get(client.id);
if (clientRooms) {
clientRooms.delete(roomId);
if (clientRooms.size === 0 && !this.#config.alwaysMainChannel) {
this.#clients.delete(client.id);
}
}
this._getServer().publish(roomId, `${client.id} has left the room`);
} else {
client.send({ type: 'error', message: `Room ${roomId} does not exist` });
}
}
/**
* Handle creating a new room.
* @param {Object} client - The client object.
* @param {Object} message - The message object.
* @param {string} message.roomId - The ID of the room to create.
*/
create(client, { roomId }) {
if (this.#rooms.has(roomId)) {
client.send({ type: 'error', message: `Room ${roomId} already exists` });
return;
}
const room = new Room(roomId);
this.#rooms.set(roomId, room);
client.ws.subscribe(roomId);
room.add(client.id, { muted: false, lastActivity: Date.now() });
this.#clients.set(client.id, (this.#clients.get(client.id) || new Set()).add(roomId));
// Initialize the permissions for the room
this._getServer().emit('permissions:init', this.constructor.name, roomId, (permissions) => {
room.permissions = permissions;
permissions.role(client.id, 'OWNER');
});
client.send({ type: 'success', message: `Room ${roomId} created successfully` });
}
/**
* Handle sending a message to a room.
* @param {Object} client - The client object.
* @param {Object} message - The message object.
* @param {string} message.roomId - The ID of the room to send the message to.
* @param {string} message.content - The content of the message.
* @returns {boolean} - True if the message was sent successfully, false otherwise.
*/
send(client, { roomId, content }) {
const room = this.#rooms.get(roomId);
if (room && room.get(client.id)) {
if (!room.permissions.can(client.id, 'SEND_MESSAGE')) {
client.send({ type: 'error', message: 'You do not have permission to send messages in this room' });
return false;
}
const memberData = room.members.get(client.id);
if (memberData.muted) {
client.send({ type: 'error', message: 'You are muted and cannot send messages in this room' });
return false;
}
room.update(client.id);
this._getServer().publish(roomId, `${client.id}: ${content}`);
this.emit('rooms:message', client, message.roomId, message.content);
this.emit(`rooms:message:${message.roomId}`, client, message.content);
return true;
} else {
client.send({ type: 'error', message: 'You are not allowed to send messages in this room' });
return false;
}
}
/**
* Handle kicking a member from a room.
* @param {Object} client - The client object.
* @param {Object} message - The message object.
* @param {string} message.roomId - The ID of the room.
* @param {string} message.memberId - The ID of the member to kick.
*/
kick(client, { roomId, memberId }) {
const room = this.#rooms.get(roomId);
if (room && room.get(memberId)) {
if (!room.permissions.can(client.id, 'KICK_MEMBER')) {
client.send({ type: 'error', message: 'You do not have permission to kick members from this room' });
return;
}
const member = this._getServer().getValidClient(memberId);
if (member) {
member.ws.unsubscribe(roomId);
room.members.set(memberId, { id: memberId, muted: true, kicked: Date.now() });
const clientRooms = this.#clients.get(memberId);
if (clientRooms) {
clientRooms.delete(roomId);
if (clientRooms.size === 0 && !this.#config.alwaysMainChannel) {
this.#clients.delete(memberId);
}
}
if (this.#config.notifyKick) {
this._getServer().publish(roomId, `${memberId} has been kicked from the room`);
}
member.send({ type: 'kicked', roomId });
}
client.send({ type: 'success', message: `Member ${memberId} has been kicked from room ${roomId}` });
} else {
client.send({ type: 'error', message: `Cannot kick member ${memberId} from room ${roomId}` });
}
}
/**
* Handle muting a member in a room.
* @param {Object} client - The client object.
* @param {Object} message - The message object.
* @param {string} message.roomId - The ID of the room.
* @param {string} message.memberId - The ID of the member to mute.
*/
mute(client, { roomId, memberId }) {
const room = this.#rooms.get(roomId);
if (room && room.get(memberId)) {
if (!room.permissions.can(client.id, 'MUTE_MEMBER')) {
client.send({ type: 'error', message: 'You do not have permission to mute members in this room' });
return;
}
room.members.get(memberId).muted = true;
const member = this._getServer().getValidClient(memberId);
if (member && this.#config.notifyMuteUnmute) {
member.send({ type: 'muted', roomId });
}
client.send({ type: 'success', message: `Member ${memberId} has been muted in room ${roomId}` });
} else {
client.send({ type: 'error', message: `Cannot mute member ${memberId} in room ${roomId}` });
}
}
/**
* Handle unmuting a member in a room.
* @param {Object} client - The client object.
* @param {Object} message - The message object.
* @param {string} message.roomId - The ID of the room.
* @param {string} message.memberId - The ID of the member to unmute.
*/
unmute(client, { roomId, memberId }) {
const room = this.#rooms.get(roomId);
if (room && room.get(memberId)) {
if (!room.permissions.can(client.id, 'UNMUTE_MEMBER')) {
client.send({ type: 'error', message: 'You do not have permission to unmute members in this room' });
return;
}
room.members.get(memberId).muted = false;
const member = this._getServer().getValidClient(memberId);
if (member && this.#config.notifyMuteUnmute) {
member.send({ type: 'unmuted', roomId });
}
client.send({ type: 'success', message: `Member ${memberId} has been unmuted in room ${roomId}` });
} else {
client.send({ type: 'error', message: `Cannot unmute member ${memberId} in room ${roomId}` });
}
}
/**
* Check for inactive members in each room and kick them.
*/
#purge() {
for (const [roomId, room] of this.#rooms.entries()) {
const now = Date.now();
for (const [memberId, memberData] of room.members.entries()) {
if (now - memberData.lastActivity > this.#config.inactivityTimeout) {
this.kick(null, { roomId, memberId });
}
}
}
}
/**
* Broadcast a message to a specific room or all rooms.
* @param {string} roomId - The ID of the room to broadcast to. If not provided, the message will be broadcast to all rooms.
* @param {string} message - The message to broadcast.
*/
#broadcast(message, roomId) {
if (this.#rooms.has(roomId)) {
this._getServer().publish(roomId, message);
return;
}
if(roomId == 'all') {
for (const room of this.#rooms.values()) {
this._getServer().publish(room.id, message);
}
}
}
}