DEV Community πŸ‘©β€πŸ’»πŸ‘¨β€πŸ’»

Timothy Spann.   πŸ‡ΊπŸ‡¦
Timothy Spann. πŸ‡ΊπŸ‡¦

Posted on • Originally published at datainmotion.dev on

OpenSSL / SSL Hosting in NiFi

  1. Host a Web Page (index.html) via HTTP GET with 200 OK Status
  2. Receive POST from that page via AJAX with browser data
  3. Extract Content and Attributes
  4. Build a JSON file of HTTP data
  5. Store it To accept location in a phone or modern browser you must be running SSL. So I added that for this HTTP Request.

Use openssl to create your 2048 RSA X509, PKCS12, JKS Keystore, Import Trust Store and import in browser

Your web page can be any web page, just POST back via AJAX or Form Submit.

\<html\>
\<head\>
\<title\>NiFi Browser Data Acquisition\</title\>
\<body\>
\<script\>
// Usage
window.onload = function() {

navigator.getBattery().then(function(battery) {
 console.log(battery.level);
 battery.addEventListener('levelchange', function() {
 console.log(this.level);
 });
});

};

////////////// print these

 var latitude = "";
 var longitude = "";
 var ips = "";
 var batteryInfo = "";
 var screenInfo = screen.width +","+ screen.height + "," +
 screen.availWidth +","+ screen.availHeight + "," +
 screen.colorDepth + "," + screen.pixelDepth;
 var pluginsInfo = "";
 var coresInfo = "";

/////////////

////// Set Plugins
 for (var i = 0; i \< 12; i++) {
 if ( typeof window.navigator.plugins[i] !== 'undefined' ) { 
 pluginsInfo += window.navigator.plugins[i].name + ', '; 
 }
 }


////// Set Cores
if ( window.navigator.hardwareConcurrency \> 0 ) {
 coresInfo = window.navigator.hardwareConcurrency + " cores";
}

/////////////
/// send the information to the server
function loadDoc() {
 var xhttp = new XMLHttpRequest();
 xhttp.onreadystatechange = function() {
 if (this.readyState == 4 && this.status == 200) {
 document.getElementById("demo").innerHTML = 'Sent.';
 }
 };
 // /send
 xhttp.open("POST", "/send", true);
 xhttp.setRequestHeader("Content-type", "application/json");
 xhttp.send('{"plugins":"' + pluginsInfo +
 '", "screen":"' + screenInfo + 
 '", "cores":"' + coresInfo + 
 '", "battery":"' + batteryInfo + 
 '", "ip":"' + ips + 
 '", "lat":"' + latitude + '", "lng":"' + longitude + '"}')
}

////////////
function geoFindMe() {
 var output = document.getElementById("out");

 if (!navigator.geolocation){
 output.innerHTML = "\<p\>Geolocation is not supported by your browser\</p\>";
 return;
 }

 function success(position) {
 latitude = position.coords.latitude;
 longitude = position.coords.longitude;

 output.innerHTML = '\<p\>Latitude is ' + latitude + 'Β° \<br\>Longitude is ' + longitude + 'Β°\</p\>';

 var img = new Image();
 img.src="https://maps.googleapis.com/maps/api/staticmap?center=" + latitude + "," + longitude + "&zoom=13&size=300x300&sensor=false";

 output.appendChild(img);
 }

 function error() {
 output.innerHTML = "Unable to retrieve your location";
 }

 output.innerHTML = "\<p\>Locating…\</p\>";

 navigator.geolocation.getCurrentPosition(success, error);
}

//get the IP addresses associated with an account
function getIPs(callback){
 var ip\_dups = {};

 //compatibility for firefox and chrome
 var RTCPeerConnection = window.RTCPeerConnection
 || window.mozRTCPeerConnection
 || window.webkitRTCPeerConnection;
 var useWebKit = !!window.webkitRTCPeerConnection;

 //bypass naive webrtc blocking using an iframe
 if(!RTCPeerConnection){
 //NOTE: you need to have an iframe in the page right above the script tag
 //
 //\<iframe id="iframe" sandbox="allow-same-origin" style="display: none"\>\</iframe\>
 //\<script\>...getIPs called in here...
 //
 var win = iframe.contentWindow;
 RTCPeerConnection = win.RTCPeerConnection
 || win.mozRTCPeerConnection
 || win.webkitRTCPeerConnection;
 useWebKit = !!win.webkitRTCPeerConnection;
 }

 //minimal requirements for data connection
 var mediaConstraints = {
 optional: [{RtpDataChannels: true}]
 };

 var servers = {iceServers: [{urls: "stun:stun.services.mozilla.com"}]};

 //construct a new RTCPeerConnection
 var pc = new RTCPeerConnection(servers, mediaConstraints);

 function handleCandidate(candidate){
 //match just the IP address
 var ip\_regex = /([0-9]{1,3}(\.[0-9]{1,3}){3}|[a-f0-9]{1,4}(:[a-f0-9]{1,4}){7})/
 var ip\_addr = ip\_regex.exec(candidate)[1];

 //remove duplicates
 if(ip\_dups[ip\_addr] === undefined)
 callback(ip\_addr);

 ip\_dups[ip\_addr] = true;
 }

 //listen for candidate events
 pc.onicecandidate = function(ice){

 //skip non-candidate events
 if(ice.candidate)
 handleCandidate(ice.candidate.candidate);
 };

 //create a bogus data channel
 pc.createDataChannel("");

 //create an offer sdp
 pc.createOffer(function(result){

 //trigger the stun server request
 pc.setLocalDescription(result, function(){}, function(){});

 }, function(){});

 //wait for a while to let everything done
 setTimeout(function(){
 //read candidate info from local description
 var lines = pc.localDescription.sdp.split('\n');

 lines.forEach(function(line){
 if(line.indexOf('a=candidate:') === 0)
 handleCandidate(line);
 });
 }, 1000);
}

window.addEventListener("load", function (ev) {
 "use strict";
 var log = document.getElementById("log");
 // [https://dvcs.w3.org/hg/dap/raw-file/tip/sensor-api/Overview.html](https://dvcs.w3.org/hg/dap/raw-file/tip/sensor-api/Overview.html)
 window.addEventListener("devicetemperature", function (ev) {
 log.textContent += "devicetemperature " + ev.value + "\n";
 }, false);
 window.addEventListener("devicepressure", function (ev) {
 log.textContent += "devicepressure " + ev.value + "\n";
 }, false);
 window.addEventListener("devicelight", function (ev) {
 log.textContent += "devicelight " + ev.value + "\n";
 // toy tric
 log.style.color = "rgb(" + (255 - 2\*ev.value) + ",0,0)";
 log.style.backgroundColor = "rgb(0,0," + (2\*ev.value) + ")";
 }, false);
 window.addEventListener("deviceproximity", function (ev) {
 log.textContent += "deviceproximity " + ev.value + "\n";
 // toy tric
 if (ev.value \< 3) navigator.vibrate([300, 100, 100]);
 }, false);
 window.addEventListener("devicenoise", function (ev) {
 log.textContent += "devicenoise " + ev.value + "\n";
 }, false);
 window.addEventListener("devicehumidity", function (ev) {
 log.textContent += "devicehumidity " + ev.value + "\n";
 }, false);

 //https://wiki.mozilla.org/Magnetic\_Field\_Events
 window.addEventListener("devicemagneticfield", function (ev) {
 log.textContent += "devicemagneticfield " + [ev.x, ev.y, ev.x]+ "\n";
 }, false);

 // [https://dvcs.w3.org/hg/dap/raw-file/default/pressure/Overview.html](https://dvcs.w3.org/hg/dap/raw-file/default/pressure/Overview.html)
 window.addEventListener("atmpressure", function (ev) {
 log.textContent += "atmpressure " + ev.value + "\n";
 }, false);

 // [https://dvcs.w3.org/hg/dap/raw-file/tip/humidity/Overview.html](https://dvcs.w3.org/hg/dap/raw-file/tip/humidity/Overview.html)
 window.addEventListener("humidity", function (ev) {
 log.textContent += "humidity " + ev.value + "\n";
 }, false);

 // [https://dvcs.w3.org/hg/dap/raw-file/tip/temperature/Overview.html](https://dvcs.w3.org/hg/dap/raw-file/tip/temperature/Overview.html)
 window.addEventListener("temperature", function (ev) {
 log.textContent += "temperature " + [ev.f, ev.c, ev.k, ev.value] + "\n";
 }, false);

 // [https://dvcs.w3.org/hg/dap/raw-file/tip/battery/Overview.html](https://dvcs.w3.org/hg/dap/raw-file/tip/battery/Overview.html)
 try {
 if (typeof navigator.getBattery === "function") {
 navigator.getBattery().then(function (battery) {
 log.textContent += "battery.level " + battery.level + "\n";
 log.textContent += "battery.charging " + battery.charging + "\n";

 batteryInfo = "battery.level=" + battery.level + "," + 
 "battery.charging=" + battery.charging;

 log.textContent += "battery.chargeTime " + battery.chargeTime + "\n";
 log.textContent += "battery.dischargeTime " + battery.dischargeTime + "\n";
 battery.addEventListener("levelcharge", function (ev) {
 log.textContent += "change battery.level " + battery.level + "\n";
 }, false);
 }).catch(function (err) {
 log.textContent += err.toString() + "\n";
 });
 } else {
 log.textContent += "";
 }
 } catch (ex) {
 log.textContent += ex.toString() + "\n";
 }
}, false);

\</script\>

\<p\>
\<br\>
DEMO: Send Data to HDF / Apache NiFi via HandleHTTPRequest
\<br\>

\<p\>\<button onclick="geoFindMe()"\>Show my location\</button\>\</p\>

\<div id="out"\>\</div\>

\<div id="demo"\>\</div\>

\<pre id="log"\>\</pre\>

\<button type="button" onclick="loadDoc()"\>Send data to Apache NiFi SSL Server\</button\>

\<iframe id="iframe" sandbox="allow-same-origin" style="display: none"\>\</iframe\>
\<script\>

getIPs(function(ip){ips = ip;});

\</script\>
\</body\>
\</html\>
Enter fullscreen mode Exit fullscreen mode

index.html : A web page to grab user information.

mobile-ingest-v3.xml : Apache NiFi 1.1.x template.

Note: Different browsers, devices, phones, tables and versions will send different values. Users should get a location request pop-up.

JSON Result File

{
 "http.request.uri" : "/send",
 "http.context.identifier" : "a4f9ae25-5f49-463e-97eb-c8a6bf3be8a7",
 "http.remote.host" : "192.168.1.151",
 "http.headers.Host" : "192.168.1.151:9178",
 "http.local.name" : "192.168.1.151",
 "http.headers.DNT" : "1",
 "plugins" : "Widevine Content Decryption Module, Shockwave Flash, Chrome PDF Viewer, Native Client, Chrome PDF Viewer, ",
 "latitude" : "40.2681799",
 "http.headers.Accept" : "\*/\*",
 "battery" : "battery.level=1,battery.charging=true",
 "uuid" : "a2f299ae-6ef6-480d-a359-1362d25abe76",
 "http.request.url" : "https://192.168.1.151:9178/send",
 "http.server.name" : "192.168.1.151",
 "http.character.encoding" : "UTF-8",
 "path" : "./",
 "cores" : "8 cores",
 "http.remote.addr" : "192.168.1.151",
 "http.headers.User-Agent" : "Mozilla/5.0 (Macintosh; Intel Mac OS X 10\_12\_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36",
 "http.method" : "POST",
 "http.headers.Connection" : "keep-alive",
 "longitude" : "-74.5291745",
 "http.server.port" : "9178",
 "ip" : "192.168.1.151",
 "mime.type" : "application/json",
 "http.locale" : "en\_US",
 "http.headers.Accept-Encoding" : "gzip, deflate, br",
 "http.headers.Origin" : "https://192.168.1.151:9178",
 "http.servlet.path" : "",
 "http.local.addr" : "192.168.1.151",
 "filename" : "1082639525534467",
 "http.headers.Referer" : "https://192.168.1.151:9178/",
 "http.headers.Accept-Language" : "en-US,en;q=0.8",
 "http.headers.Content-Length" : "253",
 "http.headers.Content-Type" : "application/json",
 "RouteOnAttribute.Route" : "isjsonpost"
}
Enter fullscreen mode Exit fullscreen mode

References:

Resources

https://www.freecodecamp.org/news/openssl-command-cheatsheet-b441be1e8c4a/

https://www.ibm.com/support/knowledgecenter/en/SSMNED_5.0.0/com.ibm.apic.cmc.doc/task_apionprem_gernerate_self_signed_openSSL.html

https://blogs.oracle.com/blogbypuneeth/steps-to-create-a-self-signed-certificate-using-openssl

https://www.batchiq.com/nifi-configuring-ssl-auth.html

http://www.treselle.com/blog/apache-nifi-data-crawling-from-https-websites/

https://www.tomaszezula.com/2016/11/06/using-ssl-with-nifi/

https://community.cloudera.com/t5/Support-Questions/Nifi-WebSocket-Secure-wss/m-p/237209

https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi/nifi-ssl-context-service-nar/1.9.0/org.apache.nifi.ssl.StandardRestrictedSSLContextService/index.html

p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Andale Mono'; color: #2fff12; background-color: #000000; background-color: rgba(0, 0, 0, 0.9)} span.s1 {font-variant-ligatures: no-common-ligatures}

openssl req -newkey rsa:2048 -x509 -keyout cakey.pem -out cacert.pem -days 3650

openssl pkcs12 -export -in cacert.pem -inkey cakey.pem -out identity.p12 -name "mykey"

keytool -importkeystore -destkeystore identity.jks -deststorepass password -srckeystore identity.p12 -srcstoretype PKCS12 -srcstorepass password

keytool -import -file cacert.pem -keystore trust.jks -storepass password

openssl x509 -in cacert.pem -noout -text

cat cakey.pem cacert.pem > server.pem

http://www.gaudreault.ca/nifi-kerberize-ssl/

Top comments (0)

Another day as a dev

Stop by this week's meme thread!