├── .gitignore ├── 01-simple-connectivity ├── index.html └── simple-connectivity.js ├── 02-full-mesh ├── full-mesh.js └── index.html ├── 03-audio-video ├── audio-video.js └── index.html ├── 04-canvas-streams ├── canvas-streams.js └── index.html ├── 05-screen-sharing ├── chrome-addon │ ├── background-script.js │ ├── content-script.js │ ├── icon.png │ └── manifest.json ├── index.html └── screen-sharing.js ├── 06-sending-files ├── index.html └── sending-files.js ├── LICENSE ├── README.md └── shared └── screen.css /.gitignore: -------------------------------------------------------------------------------- 1 | # Logs 2 | logs 3 | *.log 4 | npm-debug.log* 5 | 6 | # Runtime data 7 | pids 8 | *.pid 9 | *.seed 10 | 11 | # Directory for instrumented libs generated by jscoverage/JSCover 12 | lib-cov 13 | 14 | # Coverage directory used by tools like istanbul 15 | coverage 16 | 17 | # nyc test coverage 18 | .nyc_output 19 | 20 | # Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files) 21 | .grunt 22 | 23 | # node-waf configuration 24 | .lock-wscript 25 | 26 | # Compiled binary addons (http://nodejs.org/api/addons.html) 27 | build/Release 28 | 29 | # Dependency directories 30 | node_modules 31 | jspm_packages 32 | 33 | # Optional npm cache directory 34 | .npm 35 | 36 | # Optional REPL history 37 | .node_repl_history 38 | -------------------------------------------------------------------------------- /01-simple-connectivity/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | WebRTC Example 01 Simple Connectivity 5 | 6 | 7 |
8 | 11 |
12 | 13 | 14 | 15 | 16 | -------------------------------------------------------------------------------- /01-simple-connectivity/simple-connectivity.js: -------------------------------------------------------------------------------- 1 | const log = msg => { 2 | $( '.output' ).append( '
  • ' + msg + '
    • ' ); 3 | }; 4 | 5 | log( 'connecting to deepstreamHub' ); 6 | 7 | const dshUrl = 'wss://013.deepstreamhub.com?apiKey=d02f8752-7d26-4cf0-965a-90c21536410f'; 8 | 9 | /* 10 | * Establish a connection to deepstreamHub 11 | */ 12 | const ds = deepstream( dshUrl ).login( null, success => { 13 | 14 | /* 15 | * We'll create a random username that only exists for the duration 16 | * of this session. It's only used to make sure we're not processing 17 | * our own events 18 | */ 19 | const userName = 'user/' + ds.getUid(); 20 | 21 | /* 22 | * WebSocket connections have to be awaited by one side and initiated by the other. 23 | * To keep things simple we check if this window's url ends in '#initiator' 24 | */ 25 | const isInitiator = document.location.hash === '#initiator'; 26 | 27 | log( 'connected to deepstreamHub' ); 28 | 29 | log( `${isInitiator ? 'initiating' : 'awaiting'} peer connection as ${userName}` ); 30 | 31 | /* 32 | * Let's open a peer connection with the minimal amout of configuration 33 | */ 34 | const p2pConnection = new SimplePeer({ 35 | initiator: isInitiator 36 | }); 37 | 38 | p2pConnection.on( 'error', error => { 39 | log( 'error: ' + error ); 40 | }); 41 | 42 | /* 43 | * This event will be emitted when our peer connection wants to 44 | * send a signal to the other side 45 | */ 46 | p2pConnection.on( 'signal', signal => { 47 | 48 | /* 49 | * We'll use deepstreamHub's publish/subscribe mechanism to 50 | * send session establishment data back and forth between the peers 51 | */ 52 | ds.event.emit( 'rtc-signal', { 53 | sender: userName, 54 | signal: signal 55 | }); 56 | }); 57 | 58 | /* 59 | * When receiving a signal check its 60 | * from the remote peer 61 | */ 62 | ds.event.subscribe( 'rtc-signal', msg => { 63 | if( msg.sender !== userName ) { 64 | p2pConnection.signal( msg.signal ); 65 | } 66 | }); 67 | 68 | /* 69 | * We'll send a message to the other side as soon as 70 | * the connection is established 71 | */ 72 | p2pConnection.on( 'connect', () => { 73 | log( 'webrtc datachannel connected' ); 74 | p2pConnection.send( 'Hello from user ' + userName ); 75 | }); 76 | 77 | p2pConnection.on( 'close', () => { 78 | log( 'webrtc datachannel closed' ); 79 | }); 80 | 81 | p2pConnection.on( 'data', data => { 82 | log( 'received data ' + data + '' ); 83 | }); 84 | }); 85 | -------------------------------------------------------------------------------- /02-full-mesh/full-mesh.js: -------------------------------------------------------------------------------- 1 | const ds = deepstream( 'wss://013.deepstreamhub.com?apiKey=d02f8752-7d26-4cf0-965a-90c21536410f' ).login(); 2 | const localUserName = ds.getUid(); 3 | const users = ds.record.getList( 'users' ); 4 | const connections = {}; 5 | const input = $('input'); 6 | 7 | $('form').on('submit', ( e ) => { 8 | e.preventDefault(); 9 | var val = input.val(); 10 | for( var username in connections ) { 11 | connections[ username ].send( val ); 12 | } 13 | input.val('').focus(); 14 | }); 15 | 16 | ds.event.subscribe( `rtc-signal/${localUserName}`, msg => { 17 | if( connections[ msg.user ] ) { 18 | connections[ msg.user ].processSignal( msg.signal ); 19 | } 20 | }); 21 | 22 | users.addEntry( localUserName ); 23 | 24 | users.subscribe( userNames => { 25 | userNames.forEach( userName => { 26 | if( connections[ userName ] ) return; 27 | if( userName === localUserName ) return; 28 | connections[ userName ] = new Connection( userName ); 29 | }) 30 | 31 | for( var userName in connections ) { 32 | if( userNames.indexOf( userName ) === -1 ) { 33 | connections[ userName ].destroy(); 34 | } 35 | } 36 | }); 37 | 38 | const log = msg => { 39 | $( '.output' ).append( '
  • ' + msg + '
    • ' ); 40 | }; 41 | 42 | log( 'connecting to deepstreamHub' ); 43 | log( `this is user ${localUserName}` ); 44 | 45 | class Connection{ 46 | constructor( remoteUserName ) { 47 | log( `Opening connection to ${remoteUserName}` ); 48 | 49 | this._remoteUserName = remoteUserName; 50 | this._isConnected = false; 51 | this._p2pConnection = new SimplePeer({ 52 | initiator: localUserName > remoteUserName, 53 | trickle: false 54 | }); 55 | this._p2pConnection.on( 'signal', this._onOutgoingSignal.bind( this ) ); 56 | this._p2pConnection.on( 'error', this._onError.bind( this ) ); 57 | this._p2pConnection.on( 'connect', this._onConnect.bind( this ) ); 58 | this._p2pConnection.on( 'close', this._onClose.bind( this ) ); 59 | this._p2pConnection.on( 'data', this._onData.bind( this ) ); 60 | setTimeout( this._checkConnected.bind( this ), 7000 ); 61 | } 62 | 63 | processSignal( signal ) { 64 | this._p2pConnection.signal( signal ); 65 | } 66 | 67 | send( msg ) { 68 | this._p2pConnection.send(msg); 69 | } 70 | 71 | destroy() { 72 | this._p2pConnection.destroy(); 73 | } 74 | 75 | _onOutgoingSignal( signal ) { 76 | ds.event.emit( `rtc-signal/${this._remoteUserName}` , { 77 | user: localUserName, 78 | signal: signal 79 | }); 80 | } 81 | 82 | _onConnect() { 83 | this._isConnected = true; 84 | log( 'connected to ' + this._remoteUserName ); 85 | } 86 | 87 | _onClose() { 88 | log( `connection to ${this._remoteUserName} closed` ); 89 | delete connections[ this._remoteUserName ]; 90 | users.removeEntry( this._remoteUserName ); 91 | } 92 | 93 | _checkConnected() { 94 | if( !this._isConnected ) { 95 | this.destroy(); 96 | } 97 | } 98 | 99 | _onData( data ) { 100 | log( `received message from ${this._remoteUserName}: ${data.toString()}` ); 101 | } 102 | 103 | _onError( error ) { 104 | log( `an error occured ${error.toString()}` ); 105 | } 106 | } -------------------------------------------------------------------------------- /02-full-mesh/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | WebRTC Example 02 Full Mesh 5 | 6 | 7 | 8 | 9 | 10 | 11 |
    12 | 13 |
    14 | 15 | 18 | 19 | 20 | -------------------------------------------------------------------------------- /03-audio-video/audio-video.js: -------------------------------------------------------------------------------- 1 | var localStream, ds, isInitialized = false; 2 | 3 | navigator.getUserMedia( 4 | { video: true, audio: true }, 5 | stream => { 6 | localStream = stream; 7 | $( '.local video' ).attr( 'src', URL.createObjectURL( stream ) ); 8 | init(); 9 | }, 10 | error => { 11 | console.log( 'error while accessing usermedia', error.toString() ); 12 | } 13 | ); 14 | 15 | ds = deepstream( 'wss://013.deepstreamhub.com?apiKey=d02f8752-7d26-4cf0-965a-90c21536410f' ); 16 | 17 | ds.login( null, init ); 18 | 19 | function init() { 20 | if( !localStream || ds.getConnectionState() !== 'OPEN' || isInitialized ) { 21 | return; 22 | } 23 | 24 | isInitialized = true; 25 | 26 | const userName = 'user/' + ds.getUid(); 27 | 28 | const p2pConnection = new SimplePeer({ 29 | initiator: document.location.hash === '#initiator', 30 | stream: localStream 31 | }); 32 | 33 | p2pConnection.on( 'signal', signal => { 34 | ds.event.emit( 'rtc-signal-03', { 35 | sender: userName, 36 | signal: signal 37 | }); 38 | }); 39 | 40 | ds.event.subscribe( 'rtc-signal-03', msg => { 41 | if( msg.sender !== userName ) { 42 | p2pConnection.signal( msg.signal ); 43 | } 44 | }); 45 | 46 | p2pConnection.on( 'stream', remoteStream => { 47 | $( '.remote video' ).attr( 'src', URL.createObjectURL( remoteStream ) ); 48 | }); 49 | } 50 | 51 | -------------------------------------------------------------------------------- /03-audio-video/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | WebRTC Example 03 Audio Video 5 | 6 | 7 | 8 | 9 | 10 | 11 |
    12 |
    13 | 14 | 15 |
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    17 | 18 | 19 |
    20 |
    21 | 22 | 23 | 24 | -------------------------------------------------------------------------------- /04-canvas-streams/canvas-streams.js: -------------------------------------------------------------------------------- 1 | var localStream; 2 | var ds; 3 | var isInitialized = false; 4 | var localVideo = $( '.local video' )[ 0 ]; 5 | var inputCtx = $( '.input-canvas canvas' )[ 0 ].getContext( '2d' ); 6 | var outputCtx = $( '.output-canvas canvas' )[ 0 ].getContext( '2d' ); 7 | var width = 300; 8 | var height = 225; 9 | 10 | navigator.getUserMedia( 11 | { video: true, audio: true }, 12 | stream => { 13 | localStream = stream; 14 | $( '.local video' ).attr( 'src', URL.createObjectURL( stream ) ); 15 | drawToCanvas(); 16 | init(); 17 | }, 18 | error => { 19 | alert( 'error while accessing usermedia ' + error.toString() ); 20 | } 21 | ); 22 | 23 | function drawToCanvas() { 24 | // draw video to input canvas 25 | inputCtx.drawImage( localVideo, 0, 0, width, height ); 26 | 27 | // get pixel data from input canvas 28 | var pixelData = inputCtx.getImageData( 0, 0, width, height ); 29 | 30 | var avg, i; 31 | 32 | // simple greyscale transformation 33 | for( i = 0; i < pixelData.data.length; i += 4 ) { 34 | avg = ( pixelData.data[ i ] + pixelData.data[ i + 1 ] + pixelData.data[ i + 2 ] ) / 3; 35 | pixelData.data[ i ] = avg; 36 | pixelData.data[ i + 1 ] = avg; 37 | pixelData.data[ i + 2 ] = avg; 38 | } 39 | 40 | outputCtx.putImageData( pixelData, 0, 0 ); 41 | requestAnimationFrame( drawToCanvas ); 42 | } 43 | 44 | ds = deepstream( 'wss://013.deepstreamhub.com?apiKey=d02f8752-7d26-4cf0-965a-90c21536410f' ); 45 | 46 | ds.login( null, init ); 47 | 48 | function init() { 49 | if( !localStream || ds.getConnectionState() !== 'OPEN' || isInitialized ) { 50 | return; 51 | } 52 | 53 | isInitialized = true; 54 | 55 | const userName = 'user/' + ds.getUid(); 56 | 57 | const p2pConnection = new SimplePeer({ 58 | initiator: document.location.hash === '#initiator', 59 | stream: $( '.output-canvas canvas' )[ 0 ].captureStream() 60 | }); 61 | 62 | p2pConnection.on( 'signal', signal => { 63 | ds.event.emit( 'rtc-signal-03', { 64 | sender: userName, 65 | signal: signal 66 | }); 67 | }); 68 | 69 | ds.event.subscribe( 'rtc-signal-03', msg => { 70 | if( msg.sender !== userName ) { 71 | p2pConnection.signal( msg.signal ); 72 | } 73 | }); 74 | 75 | p2pConnection.on( 'stream', remoteStream => { 76 | $( '.remote video' ).attr( 'src', URL.createObjectURL( remoteStream ) ); 77 | }); 78 | } -------------------------------------------------------------------------------- /04-canvas-streams/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | WebRTC Example 03 Audio Video 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 | -------------------------------------------------------------------------------- /05-screen-sharing/chrome-addon/background-script.js: -------------------------------------------------------------------------------- 1 | chrome.runtime.onConnect.addListener(function (port) { 2 | function onResponse( sourceId ) { 3 | if(!sourceId || !sourceId.length) { 4 | port.postMessage('PermissionDeniedError'); 5 | } else { 6 | port.postMessage({ sourceId: sourceId }); 7 | } 8 | } 9 | 10 | function onMessage( msg ) { 11 | if( msg !== 'requestScreenSourceId' ) { 12 | return; 13 | } 14 | chrome.desktopCapture.chooseDesktopMedia( 15 | ['screen', 'window'], 16 | port.sender.tab, 17 | onResponse 18 | ); 19 | } 20 | 21 | port.onMessage.addListener( onMessage ); 22 | }); -------------------------------------------------------------------------------- /05-screen-sharing/chrome-addon/content-script.js: -------------------------------------------------------------------------------- 1 | var port = chrome.runtime.connect(); 2 | 3 | port.onMessage.addListener(function (message) { 4 | window.postMessage(message, '*'); 5 | }); 6 | 7 | window.addEventListener('message', function (event) { 8 | if( event.data === 'check-addon-installed' ) { 9 | window.postMessage( 'addon-installed', '*' ); 10 | } else if (event.source === window) { 11 | port.postMessage( event.data ); 12 | } 13 | }); -------------------------------------------------------------------------------- /05-screen-sharing/chrome-addon/icon.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/deepstreamIO/dsh-demo-webrtc-examples/9720a92764284dd7ef15ea7a919857b1fd47db18/05-screen-sharing/chrome-addon/icon.png -------------------------------------------------------------------------------- /05-screen-sharing/chrome-addon/manifest.json: -------------------------------------------------------------------------------- 1 | { 2 | "name" : "Forward Screen Id", 3 | "author": "deepstreamHub GmbH", 4 | "version" : "3.4", 5 | "manifest_version" : 2, 6 | "minimum_chrome_version": "34", 7 | "description" : "Capture full-screen or specific application's screen on any HTTPs domain!", 8 | "homepage_url": "https://www.webrtc-experiment.com/", 9 | "background": { 10 | "scripts": ["background-script.js"], 11 | "persistent": false 12 | }, 13 | "content_scripts": [ { 14 | "js": [ "content-script.js" ], 15 | "all_frames": true, 16 | "run_at": "document_end", 17 | "matches": ["https://deepstreamhub.com/*"] 18 | }], 19 | "icons" : { 20 | "48" : "icon.png" 21 | }, 22 | "permissions": [ 23 | "desktopCapture" 24 | ], 25 | "web_accessible_resources": [ 26 | "icon.png" 27 | ] 28 | } -------------------------------------------------------------------------------- /05-screen-sharing/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | WebRTC Example 05 Screen Sharing 5 | 6 | 7 | 8 | 9 | 10 |
    11 |
    12 | This example will only work on deepstreamhub.com unless you change the domain path in https://github.com/deepstreamIO/dsh-demo-webrtc-examples/blob/master/05-screen-sharing/chrome-addon/manifest.json 13 |
    14 |
    15 | Chrome extension not found. Install it by following the steps in 16 | 17 | https://deepstreamhub.com/tutorials/protocols/webrtc-screen-sharing/#install-addon 18 |
    19 |
    20 | 21 |
    22 | 23 | -------------------------------------------------------------------------------- /05-screen-sharing/screen-sharing.js: -------------------------------------------------------------------------------- 1 | $(function(){ 2 | 3 | function getScreen( sourceId ) { 4 | var constraints = { 5 | mandatory: { 6 | chromeMediaSource: 'desktop', 7 | maxWidth: screen.width > 1920 ? screen.width : 1920, 8 | maxHeight: screen.height > 1080 ? screen.height : 1080, 9 | chromeMediaSourceId: sourceId 10 | }, 11 | optional: [ 12 | { googTemporalLayeredScreencast: true } 13 | ] 14 | }; 15 | navigator.getUserMedia({video:constraints}, 16 | stream => { 17 | $('video#local').attr( 'src', URL.createObjectURL( stream ) ); 18 | }, 19 | error => { 20 | console.log( error ); 21 | } 22 | ); 23 | } 24 | 25 | window.addEventListener("message", function(msg){ 26 | if( !msg.data ) { 27 | return; 28 | } else if ( msg.data.sourceId ) { 29 | getScreen( msg.data.sourceId ); 30 | } else if( msg.data.addonInstalled ) { 31 | $( '#addon-not-found' ).hide(); 32 | $( '#share-my-screen' ).removeAttr( 'disabled' ); 33 | } 34 | }, false); 35 | 36 | if( document.location.host !== 'deepstreamhub.com' ) { 37 | $( '#domain-warning' ).show(); 38 | } else { 39 | $( '#domain-warning' ).hide(); 40 | window.postMessage( 'check-addon-installed', '*' ) 41 | } 42 | 43 | $( '#share-my-screen' ).click(function(){ 44 | window.postMessage('requestScreenSourceId', '*' ); 45 | }) 46 | }); -------------------------------------------------------------------------------- /06-sending-files/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | WebRTC Example 06 Sending Files 5 | 6 | 7 | 8 | 9 | 10 | 11 |
    12 | 13 | 16 |
    17 | 18 | 19 | -------------------------------------------------------------------------------- /06-sending-files/sending-files.js: -------------------------------------------------------------------------------- 1 | const log = msg => { 2 | $( '.output' ).append( '
  • ' + msg + '
    • ' ); 3 | }; 4 | 5 | log( 'connecting to deepstreamHub' ); 6 | 7 | const ds = deepstream( 'wss://013.deepstreamhub.com?apiKey=d02f8752-7d26-4cf0-965a-90c21536410f' ).login( null, success => { 8 | 9 | const userName = 'user/' + ds.getUid(); 10 | const isInitiator = document.location.hash === '#initiator'; 11 | const BYTES_PER_CHUNK = 1200; 12 | 13 | log( 'connected to deepstreamHub' ); 14 | 15 | log( `${isInitiator ? 'initiating' : 'awaiting'} peer connection as ${userName}` ); 16 | 17 | /** 18 | * Connection 19 | */ 20 | const p2pConnection = new SimplePeer({ 21 | initiator: isInitiator 22 | }); 23 | 24 | p2pConnection.on( 'error', error => { 25 | log( 'error: ' + error ); 26 | }); 27 | 28 | p2pConnection.on( 'signal', signal => { 29 | signal.sdp = signal.sdp.replace( 'b=AS:30', 'b=AS:1638400' ); 30 | ds.event.emit( 'rtc-signal', { 31 | sender: userName, 32 | signal: signal 33 | }); 34 | }); 35 | 36 | ds.event.subscribe( 'rtc-signal', msg => { 37 | if( msg.sender !== userName ) { 38 | p2pConnection.signal( msg.signal ); 39 | } 40 | }); 41 | 42 | p2pConnection.on( 'connect', () => { 43 | log( 'webrtc datachannel connected' ); 44 | }); 45 | 46 | p2pConnection.on( 'close', () => { 47 | log( 'webrtc datachannel closed' ); 48 | }); 49 | 50 | var incomingFileInfo; 51 | var incomingFileData; 52 | var bytesReceived; 53 | var downloadInProgress = false; 54 | 55 | p2pConnection.on( 'data', data => { 56 | if( downloadInProgress === false ) { 57 | startDownload( data ); 58 | } else { 59 | progressDownload( data ); 60 | } 61 | }); 62 | 63 | function startDownload( data ) { 64 | incomingFileInfo = JSON.parse( data.toString() ); 65 | incomingFileData = []; 66 | bytesReceived = 0; 67 | downloadInProgress = true; 68 | log( 'incoming file ' + incomingFileInfo.fileName + ' of ' + incomingFileInfo.fileSize + ' bytes' ); 69 | } 70 | 71 | function progressDownload( data ) { 72 | bytesReceived += data.byteLength; 73 | incomingFileData.push( data ); 74 | log( 'progress: ' + ((bytesReceived / incomingFileInfo.fileSize ) * 100).toFixed( 2 ) + '%' ); 75 | if( bytesReceived === incomingFileInfo.fileSize ) { 76 | endDownload(); 77 | } 78 | } 79 | 80 | function endDownload() { 81 | downloadInProgress = false; 82 | var blob = new window.Blob( incomingFileData ); 83 | var anchor = document.createElement( 'a' ); 84 | anchor.href = URL.createObjectURL( blob ); 85 | anchor.download = incomingFileInfo.fileName; 86 | anchor.textContent = 'XXXXXXX'; 87 | 88 | if( anchor.click ) { 89 | anchor.click(); 90 | } else { 91 | var evt = document.createEvent( 'MouseEvents' ); 92 | evt.initMouseEvent( 'click', true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null ); 93 | anchor.dispatchEvent( evt ); 94 | } 95 | } 96 | 97 | /** 98 | * File Handling 99 | */ 100 | var file; 101 | var currentChunk; 102 | 103 | var fileInput = $( 'input[type=file]' ); 104 | var fileReader = new FileReader(); 105 | 106 | fileReader.onload = sendNextChunk; 107 | fileInput.on( 'change', startUpload ); 108 | 109 | function startUpload() { 110 | file = fileInput[ 0 ].files[ 0 ]; 111 | log( 'sending ' + file.name + ' of ' + file.size + ' bytes' ); 112 | currentChunk = 0; 113 | p2pConnection.send(JSON.stringify({ 114 | fileName: file.name, 115 | fileSize: file.size 116 | })); 117 | readNextChunk(); 118 | } 119 | 120 | function readNextChunk() { 121 | var start = BYTES_PER_CHUNK * currentChunk; 122 | var end = Math.min( file.size, start + BYTES_PER_CHUNK ); 123 | fileReader.readAsArrayBuffer( file.slice( start, end ) ); 124 | } 125 | 126 | function sendNextChunk() { 127 | p2pConnection.send( fileReader.result ); 128 | currentChunk++; 129 | 130 | if( BYTES_PER_CHUNK * currentChunk < file.size ) { 131 | readNextChunk(); 132 | } 133 | } 134 | }); -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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