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sandbox.html
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<!DOCTYPE html>
<head>
<title>FHIRcast JavaScript - Hub and Client</title>
<style>
body {padding: 2px; background-color: darkgray;font-family: Arial, Helvetica, sans-serif; font-weight: 500;border: 1px solid black; font-size: 16}
header {background-color:white; text-align:center;}
h2 {display: inline; background-color:white; text-align:center;}
div.selectHub {border-top: 1px solid black;}
div.subscribe {float: left;width: 50%;border-top: 1px solid black;}
div.publish {padding: 2px; border-top: 1px solid black;border-left: 1px solid black;margin-left: 50%}
div.conference {padding: 2px; border-top: 1px solid black;border-left: 1px solid black;margin-left: 50%}
label,button {padding: 2px; display: inline-block;width: 24.5%}
input,textarea,select {width: 65%;border:1px solid}
input.selectHub {float: left; }
textarea {vertical-align: top;}
textarea.textAreaMonitor {width: 99%;font-family: "Segoe UI Emoji";}
textarea.textAreaMonitor,textarea.subscriptionResponse,textarea.eventResponse {background-color:whitesmoke}
div.monitor {border-top: 1px solid black;text-align:left}
div.webmessage {display: none;}
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
</head>
<body>
<header><h2><span id="docTitle"></span></h2></header>
<div class="selectHub" id="selectHub">
<h3>1. Select the hub:
<input id="hubURL" name="hubURL" style="width: 40%;" value="http://localhost:3000">
<input id="hubEndpoint" name="hubEndpoint" style="width: 25%;" value="/api/hub/">
</h3>
</div>
<div class="subscribe" id="subscribe">
<h3>2. Subscribe to an event</h3>
<label>hub.callback: </label>
<input id="clientEndpoint" name="hub.callback" size="29" value="http://localhost:3000/client"/>
<label>hub.mode:</label>
<select id="hub.mode" name="hub.mode">
<option value="subscribe" selected >subscribe</option>
<option value="unsubscribe" >unsubscribe</option>
</select>
<label>hub.events:</label>
<select id="hub.events" name="hub.events">
<option value="patient-open" selected >patient-open</option>
<option value="patient-close">patient-close</option>
<option value="imagingstudy-open">imagingstudy-open</option>
<option value="imagingstudy-close">imagingstudy-close</option>
<option value="logout-user">logout-user</option>
<option value="hibernate-user">hibernate-user</option>
</select>
<label>hub.secret: </label>
<input id="hub.secret" name="hub.secret" type="text" value="secret">
<label>hub.topic: </label>
<input id="hub.topic" name="hub.topic" type="text" value="FHIRcast testing">
<label>hub.lease: </label>
<input id="hub.lease" name="hub.lease" type="text" value="999">
<button onclick="sendSubscription(document.getElementById('hubURL').value + document.getElementById('hubEndpoint').value)">Send</button>
<textarea class="subscriptionResponse" id="subscriptionResponse"></textarea>
</div>
<div class="publish" id="publish">
<h3>3. Publish an event to the hub</h3>
<label>id:</label>
<input id="eventId" name="eventId" type="text" value="">
<label>hub.events:</label>
<select id="publishEvents" name="publishEvents">
<option value="patient-open">patient-open</option>
<option value="patient-close">patient-close</option>
<option value="imagingstudy-open" selected >imagingstudy-open</option>
<option value="imagingstudy-close">imagingstudy-close</option>
<option value="conference-start" selected >conference-start</option>
<option value="conference-end">conference-end</option>
<option value="logout-user">logout-user</option>
<option value="hibernate-user">hibernate-user</option>
</select>
<button onclick="getContext(document.getElementById('hubURL').value + document.getElementById('hubEndpoint').value,document.getElementById('hub.topic').value)" style="text-align:left;" >context:</button>
<textarea id="context" rows="9" cols="35">{}</textarea>
<button onclick="sendEvent(document.getElementById('context').value,document.getElementById('hubURL').value + document.getElementById('hubEndpoint').value+document.getElementById('hub.topic').value)">Send</button>
<textarea class="eventResponse" id="eventResponse" spellcheck="false"></textarea>
</div>
<div class="monitor" id="monitor">
<h3>4. Monitor endpoints logs with a websocket connection</h3>
<button onclick="window.open('https://github.com/fhircast/sandbox.js/blob/master/README.md');">Online help</button>
<button onclick="document.getElementById('textAreaMonitor').value=''">Clear log window</button>
<button id="buttonStatus" onclick="getHubStatus();">Get hub status</button>
<button id="buttonDelete" onclick="deleteSubscriptions(document.getElementById('hubURL').value + document.getElementById('hubEndpoint').value);">Delete all subscriptions</button>
<textarea class="textAreaMonitor" id="textAreaMonitor" rows="20" spellcheck="false"></textarea><br>
</div>
<div class="webmessage" id="webmessage">
<label>Receive message:</label>
<textarea id="receiveMessage"></textarea>
<button onclick="postMessageSandbox()">Send Web Message</button>
<textarea id="sendWebMessage">Goedemiddag from the client</textarea>
</div>
<script>
function postMessageSandbox(){
var message= document.getElementById('sendWebMessage').value;
// window.parent.postMessage(message,'*');
window.opener.postMessage(message,'*');
}
function sendSubscription(url){
data ='hub.callback=' +encodeURIComponent(document.getElementById('clientEndpoint').value);
data +='&hub.mode=' +encodeURIComponent(document.getElementById('hub.mode').value);
data +='&hub.events=' +encodeURIComponent(document.getElementById('hub.events').value);
data +='&hub.secret=' +encodeURIComponent(document.getElementById('hub.secret').value);
data +='&hub.topic=' +encodeURIComponent(document.getElementById('hub.topic').value);
data +='&hub.lease=' +encodeURIComponent(document.getElementById('hub.lease').value);
data +='&subscriber.name=Javascript-Sandbox-client';
xhr.open('POST',url,true);
xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
xhr.send(data);
xhr.onloadend = function() {
document.getElementById('subscriptionResponse').value='Response code: '+this.status;
};
console.log('Subscribtion sent from browser: '+ data);
}
function sendEvent(contextData,url){
var eventData={};
eventData['hub.topic']=document.getElementById('hub.topic').value;
eventData['hub.event']=document.getElementById('publishEvents').value;
eventData.context=JSON.parse(contextData);
var timestamp= new Date();
var msg={};
msg.timestamp= timestamp.toJSON();
msg.id=document.getElementById('eventId').value;
msg['cast-session']=document.getElementById('hub.topic').value;
msg.event=eventData;
xhr.open('POST',url,true);
xhr.setRequestHeader('Content-Type','application/json');
console.log('Event sent from browser: '+ JSON.stringify(msg));
xhr.send(JSON.stringify(msg));
xhr.onloadend = function() {
document.getElementById('eventResponse').value='Response code: '+this.status;
};
}
function getContext(url,sessionid){
var xhr = new XMLHttpRequest();
xhr.open('GET', url+sessionid, true);
xhr.setRequestHeader('Content-Type', 'application/json');
xhr.send();
console.log('Context request sent from browser for session: ' + sessionid);
xhr.onloadend = function () {
var context=JSON.parse(this.responseText);
prompt('The hub responded with status code: '+ this.status +'\nUse Ctrl-C to copy the context: \n' + JSON.stringify(context,null,2),JSON.stringify(context,null,2));
};
}
// Below internal functions - not part of standard
function getHubStatus(){
var xhr=new XMLHttpRequest();
xhr.open('POST',parser.protocol+'//' + parser.host + '/status');
xhr.send();
return;
}
function deleteSubscriptions(url){
var xhr=new XMLHttpRequest();
xhr.open('DELETE',url);
xhr.send();
return;
}
// Set UI according to environment variables retrieved from sandbox.js.
var parser=document.createElement('a'); // use link tag as a url parser
parser.href=window.location;
var xhr=new XMLHttpRequest();
xhr.open('POST',parser.protocol+'//' + parser.host + '/mode');
xhr.send();
xhr.onloadend = function() {
var env=JSON.parse(this.responseText);
if (env.mode=='client') {
document.getElementById('buttonDelete').style.visibility = 'hidden';
document.getElementById('buttonStatus').style.visibility = 'hidden';
}
document.title=env.title;
var titleSpan = document.getElementById("docTitle");
titleSpan.textContent = env.title;
document.body.style.backgroundColor = env.backgroundColor;
document.getElementById('hubURL').value = env.hubURL;
document.getElementById('hubEndpoint').value = env.hubEndpoint;
document.getElementById('clientEndpoint').value=env.clientURL;
document.getElementById('context').value=env.defaultContext;
document.getElementById('sendWebMessage').value="Goedemiddag from the " + env.title;
};
document.getElementById('eventId').value='event-id-' + Math.random().toString(36).substr(2, 16);
var clientId='Tumor board'; //'session-id-' + Math.random().toString(36).substr(2, 16);
document.getElementById('hub.topic').value=clientId;
// Check if this is a SMART launch
var state = getUrlParameter("state"); // session key
var code = getUrlParameter("code"); // authorization code
if (code!= null){
// load the app parameters stored in the session
var params = JSON.parse(sessionStorage[state]); // load app session
var tokenUri = params.tokenUri;
clientId = params.clientId;
var secret = params.secret;
var serviceUri = params.serviceUri;
var redirectUri = params.redirectUri;
// Prep the token exchange call parameters
var data = {
code: code,
grant_type: 'authorization_code',
redirect_uri: redirectUri
};
var options;
if (!secret) {
data['client_id'] = clientId;
}
options = {
url: tokenUri,
type: 'POST',
data: data
};
if (secret) {
options['headers'] = {'Authorization': 'Basic ' + btoa(clientId + ':' + secret)};
}
// obtain authorization token from the authorization service using the authorization code
$.ajax(options).done(function(res){
// should get back the access token and the patient ID
var accessToken = res.access_token;
var patientId = res.patient;
// and now we can use these to construct standard FHIR
// REST calls to obtain patient resources with the
// SMART on FHIR-specific authorization header...
var url = serviceUri + "/Patient/" + patientId;
$.ajax({
url: url,
type: "GET",
dataType: "json",
headers: {
"Authorization": "Bearer " + accessToken
},
}).done(function(pt){
var name = pt.name[0].given.join(" ") +" "+ pt.name[0].family.join(" ");
var titleSpan = document.getElementById("docTitle");
titleSpan.textContent += " - Patient: " + name ;
document.getElementById("context").value=JSON.stringify(pt,null,2);
document.getElementById("context").style.backgroundColor='lightyellow';
document.getElementById('hub.topic').value=clientId;
document.getElementById('hub.topic').style.backgroundColor='lightyellow';
});
});
}
// Check if this is a Web Messaging demo, hide unwanted divs
var webmessage = getUrlParameter("webmessage");
if (webmessage!= null){
var x = document.getElementById("selectHub");
x.style.display = "none";
var x = document.getElementById("subscribe");
x.style.display = "none";
var x = document.getElementById("publish");
x.style.display = "none";
var x = document.getElementById("monitor");
x.style.display = "none";
var x = document.getElementById("webmessage");
x.style.display = "block";
}
// Start websocket
var protocol='ws:';
if (parser.protocol=='https:'){ protocol='wss:';}
var ws = new WebSocket(protocol+'//' + parser.host + '/log');
ws.onopen = function () {
console.log('websocket is connected ...')
ws.send(clientId);
}
ws.onmessage = function (ev) {
document.getElementById('textAreaMonitor').value=document.getElementById('textAreaMonitor').value+ev.data;
document.getElementById('textAreaMonitor').scrollTop = document.getElementById('textAreaMonitor').scrollHeight;
console.log(ev.data);
}
ws.onclose = function () {
console.log('websocket is closed ...')
}
// Convenience function for parsing of URL parameters
// based on http://www.jquerybyexample.net/2012/06/get-url-parameters-using-jquery.html
function getUrlParameter(sParam)
{
var sPageURL = window.location.search.substring(1);
var sURLVariables = sPageURL.split('&');
for (var i = 0; i < sURLVariables.length; i++)
{
var sParameterName = sURLVariables[i].split('=');
if (sParameterName[0] == sParam) {
var res = sParameterName[1].replace(/\+/g, '%20');
return decodeURIComponent(res);
}
}
}
function receiver(event) {
document.getElementById('receiveMessage').value=event.data;
}
window.addEventListener('message', receiver, false);
</script>
</body>