Add optional configurations to run HTTPS/ IPPS print server.

README.md

@@ -56,7 +56,14 @@ Bonjour/Zeroconf and write all jobs to the current working directory.
 var fs = require('fs')
 var Printer = require('ipp-printer')
 
-var printer = new Printer('My Printer')
+var printer = new Printer({
+  name: 'ipp-printer',
+  // optional
+  sslConfig: {
+    cert: fs.readFileSync('path_to_ssl_cert_file'),
+    key: fs.readFileSync('path_to_ssl_key_file'),
+  },
+})
 
 printer.on('job', function (job) {
   console.log('[job %d] Printing document: %s', job.id, job.name)
@@ -165,6 +172,11 @@ An array of all jobs handled by the printer.
 
 An instance of [`http.Server`](https://nodejs.org/api/http.html#http_class_http_server).
 
+#### `printer.sslConfig`
+
+Config options of type https://nodejs.org/api/tls.html#tlscreateserveroptions-secureconnectionlistener
+in order to enable SSL/ TLS on the printer server.
+
 ### Class: Job
 
 A job is a readable stream containing the document to be printed. In

lib/bind.js

@@ -3,6 +3,7 @@
 var util = require('util')
 var os = require('os')
 var http = require('http')
+var https = require('https')
 var Bonjour = require('bonjour')
 var ipp = require('ipp-encoder')
 var debug = require('debug')(require('../package').name)
@@ -19,6 +20,9 @@ module.exports = function (printer) {
     server.on('request', onrequest)
     if (server.address()) onlistening()
     else server.on('listening', onlistening)
+  } else if (printer.sslConfig) {
+    server = printer.server = https.createServer(printer.sslConfig, onrequest)
+    server.listen(printer.port, onlistening)
   } else {
     server = printer.server = http.createServer(onrequest)
     server.listen(printer.port, onlistening)
@@ -76,7 +80,7 @@ module.exports = function (printer) {
   function onlistening () {
     printer.port = server.address().port
 
-    if (!printer.uri) printer.uri = 'ipp://' + os.hostname() + ':' + printer.port + '/'
+    if (!printer.uri) printer.uri = (printer.sslConfig? 'ipps://': 'ipp://') + os.hostname() + ':' + printer.port + '/'
 
     debug('printer "%s" is listening on %s', printer.name, printer.uri)
     printer.start()

lib/printer.js

@@ -31,6 +31,7 @@ function Printer (opts) {
   this.state = C.STOPPED
   this.server = opts.server
   this.fallback = opts.fallback
+  this.sslConfig = opts.sslConfig
 
   bind(this)
 }