File size: 2,415 Bytes
87cb242 4824a38 87cb242 4824a38 87cb242 4824a38 87cb242 4824a38 87cb242 4824a38 87cb242 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | import dotenv from 'dotenv';
dotenv.config();
function require_env(key: string): string {
const val = process.env[key];
if (!val) throw new Error(`Missing required env variable: ${key}`);
return val;
}
function optional_env(key: string, fallback: string): string {
return process.env[key] || fallback;
}
export const CONFIG = {
PORT: parseInt(optional_env('PORT', '7860'), 10),
NODE_ENV: optional_env('NODE_ENV', 'production'),
ALLOWED_ORIGINS: optional_env('ALLOWED_ORIGINS', '*').split(',').map(s => s.trim()),
JWT_SECRET: require_env('JWT_SECRET'),
REDIS_PRESENCE_URL: require_env('REDIS_PRESENCE_URL'),
REDIS_MESSAGE_URL: require_env('REDIS_MESSAGE_URL'),
MONGO_URI: require_env('MONGO_URI'),
SUPABASE_URL: require_env('SUPABASE_URL'),
SUPABASE_SERVICE_KEY: require_env('SUPABASE_SERVICE_KEY'),
SUPABASE_BUCKET: optional_env('SUPABASE_BUCKET', 'media'),
// STUN: comma-separated list of stun: URIs
STUN_SERVERS: optional_env('STUN_SERVERS', 'stun:stun.l.google.com:19302')
.split(',')
.map(s => s.trim())
.filter(Boolean),
// TURN: comma-separated list of turn:/turns: URIs (all share same credentials)
TURN_URLS: optional_env('TURN_URL', '')
.split(',')
.map(s => s.trim())
.filter(Boolean),
TURN_USERNAME: optional_env('TURN_USERNAME', ''),
TURN_CREDENTIAL: optional_env('TURN_CREDENTIAL', ''),
MAX_FILE_SIZE_BYTES: parseInt(optional_env('MAX_FILE_SIZE_MB', '99'), 10) * 1024 * 1024,
MAX_FILE_COUNT: parseInt(optional_env('MAX_FILE_COUNT', '10'), 10),
PRESENCE_TTL_S: parseInt(optional_env('PRESENCE_TTL_S', '60'), 10),
OFFLINE_MSG_TTL_S: parseInt(optional_env('OFFLINE_MSG_TTL_S', '604800'), 10),
HEARTBEAT_INTERVAL_MS: parseInt(optional_env('HEARTBEAT_INTERVAL_MS', '30000'), 10),
} as const;
interface RTCIceServerConfig {
urls: string;
username?: string;
credential?: string;
}
/**
* Builds the full ICE server array sent to clients on connect.
* Supports multiple TURN URLs (comma-separated in env) — all share
* the same username/credential pair (Metered format).
*/
export function buildIceServers(): RTCIceServerConfig[] {
const servers: RTCIceServerConfig[] = CONFIG.STUN_SERVERS.map(url => ({ urls: url }));
for (const url of CONFIG.TURN_URLS) {
servers.push({
urls: url,
username: CONFIG.TURN_USERNAME,
credential: CONFIG.TURN_CREDENTIAL,
});
}
return servers;
}
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