import * as NodeMediaServer from "node-media-server"; import { mkdir, fstat, access } from "fs"; import * as db from "./database"; const sleep = ms => new Promise(resolve => setTimeout(resolve, ms)); const { exec, execFile } = require('child_process'); function init (mediaconfig: any, satyrconfig: any) { const nms = new NodeMediaServer(mediaconfig); nms.run(); nms.on('postPublish', (id, StreamPath, args) => { console.log("[NodeMediaServer] Publish Hook for stream:",id); let session = nms.getSession(id); let app: string = StreamPath.split("/")[1]; let key: string = StreamPath.split("/")[2]; //disallow urls not formatted exactly right if (StreamPath.split("/").length !== 3){ console.log("[NodeMediaServer] Malformed URL, closing connection for stream:",id); session.reject(); return false; } if(app === satyrconfig.publicEndpoint) { if(session.ip.includes('127.0.0.1') || session.ip === '::1') { //only allow publish to public endpoint from localhost //this is NOT a comprehensive way of doing this, but I'm ignoring it //until satyr releases and someone opens an issue console.log("[NodeMediaServer] Local publish, stream:",`${id} ok.`); } else{ console.log("[NodeMediaServer] Non-local Publish to public endpoint, rejecting stream:",id); session.reject(); return false; } console.log("[NodeMediaServer] Public endpoint, checking record flag."); //set live flag db.query('update user_meta set live=true where username=\''+key+'\' limit 1'); //if this stream is from the public endpoint, check if we should be recording return db.query('select username,record_flag from users where username=\''+key+'\' limit 1').then((results) => { if(results[0].record_flag && satyrconfig.record){ console.log('[NodeMediaServer] Initiating recording for stream:',id); mkdir(satyrconfig.directory+'/'+satyrconfig.publicEndpoint+'/'+results[0].username, { recursive : true }, (err) => { if (err) throw err; let subprocess = exec('ffmpeg -i rtmp://127.0.0.1:'+mediaconfig.rtmp.port+'/'+satyrconfig.publicEndpoint+'/'+results[0].username+' -vcodec copy -acodec copy '+satyrconfig.directory+'/'+satyrconfig.publicEndpoint+'/'+results[0].username+'/$(date +%d%b%Y-%H%M).mp4',{ detached : true, stdio : 'inherit' }); subprocess.unref(); //spawn an ffmpeg process to record the stream, then detach it completely //ffmpeg can then (probably) finalize the recording if satyr crashes mid-stream }); } else { console.log('[NodeMediaServer] Skipping recording for stream:',id); } return true; }); } if(app !== satyrconfig.privateEndpoint){ //app isn't at public endpoint if we've reached this point console.log("[NodeMediaServer] Wrong endpoint, rejecting stream:",id); session.reject(); return false; } //if the url is formatted correctly and the user is streaming to the correct private endpoint //grab the username from the database and redirect the stream there if the key is valid //otherwise kill the session if(key.includes(' ')) { session.reject(); return false; } db.query('select username from users where stream_key='+db.raw.escape(key)+' limit 1').then(async (results) => { if(results[0]){ //push to rtmp exec('ffmpeg -analyzeduration 0 -i rtmp://127.0.0.1:'+mediaconfig.rtmp.port+'/'+satyrconfig.privateEndpoint+'/'+key+' -vcodec copy -acodec copy -crf 18 -f flv rtmp://127.0.0.1:'+mediaconfig.rtmp.port+'/'+satyrconfig.publicEndpoint+'/'+results[0].username); //push to mpd after making sure directory exists mkdir(satyrconfig.directory+'/'+satyrconfig.publicEndpoint+'/'+results[0].username, { recursive : true }, (err) => {;}); sleep(5000).then( () => { //wait for stream to initialize, but i'm not happy about this exec('ffmpeg -y -i rtmp://127.0.0.1:'+mediaconfig.rtmp.port+'/'+satyrconfig.privateEndpoint+'/'+key+' -map 0:2 -map 0:2 -map 0:2 -map 0:1 -c:a copy -c:v:0 copy -c:v:1 libx264 -c:v:2 libx264 -crf:1 33 -crf:2 40 -b:v:1 3000K -b:v:2 1500K -remove_at_exit 1 -seg_duration 1 -window_size 30 -f dash '+satyrconfig.directory+'/'+satyrconfig.publicEndpoint+'/'+results[0].username+'/index.mpd'); }); //switch to execFile at some point, it's safer //execFile('/usr/bin/ffmpeg',['-analyzeduration 0', '-i rtmp://127.0.0.1:'+mediaconfig.rtmp.port+'/'+satyrconfig.privateEndpoint+'/'+key, '-vcodec copy', '-acodec copy', '-crf 18', '-f flv', 'rtmp://127.0.0.1:'+mediaconfig.rtmp.port+'/'+satyrconfig.publicEndpoint+'/'+results[0].username]); console.log('[NodeMediaServer] Stream key okay for stream:',id); } else{ console.log('[NodeMediaServer] Invalid stream key for stream:',id); session.reject(); } }); }); nms.on('donePublish', (id, StreamPath, args) => { let app: string = StreamPath.split("/")[1]; let key: string = StreamPath.split("/")[2]; if(app === satyrconfig.publicEndpoint) { db.query('update user_meta set live=false where username=\''+key+'\' limit 1'); } }); nms.on('prePlay', (id, StreamPath, args) => { let session = nms.getSession(id); let app: string = StreamPath.split("/")[1]; let key: string = StreamPath.split("/")[2]; //correctly formatted urls again if (StreamPath.split("/").length !== 3){ console.log("[NodeMediaServer] Malformed URL, closing connection for stream:",id); session.reject(); return false; } //disallow playing from the private endpoint for anyone except localhost //(this will be the ffmpeg instance redirecting the stream) if(app === satyrconfig.privateEndpoint) { if(session.ip.includes('127.0.0.1') || session.ip === '::1') { console.log("[NodeMediaServer] Local play, client:",`${id} ok.`); } else{ console.log("[NodeMediaServer] Non-local Play from private endpoint, rejecting client:",id); session.reject(); } } }); } export { init };