added boolean conversion from url strings, continuing browser resize additions

ChangeLog.md

@@ -5,6 +5,10 @@ Mostly client (browser) related changes in this release
 ### Added
 - Menu system
 - Fontawesome icons
+- Resizing browser window sends resize events to terminal container as well as SSH session (pty)
+- Adding terminal options
+- New serverside (nodejs) terminal configuration options (cursorBlink, scrollback, tabStopWidth)
+- Logging of MRH session (unassigned if not present)
 
 ### Changed
 - Updated xterm.js to 3.0.2

README.md

@@ -80,6 +80,12 @@ docker run --name webssh2 -d -p 2222:2222 webssh2
 
 * **ssh.keepaliveCountMax** - _integer_ - How many consecutive, unanswered SSH-level keepalive packets that can be sent to the server before disconnection (similar to OpenSSH's ServerAliveCountMax config option). **Default:** 10.
 
+* **terminal.cursorBlink** - _boolean_ - Cursor blinks (true), does not (false) **Default:** true.
+
+* **terminal.scrollback** - _integer_ - Lines in the scrollback buffer. **Default:** 10000.
+
+* **terminal.tabStopWidth** - _integer_ - Tab stops at _n_ characters **Default:** 8.
+
 * **useminified** - _boolean_ - Choose between ./public/client-full.htm (false/non-minified) or ./public/client-min.htm (true/minified js), defaults to false (non-minified version)
 
 * **header.text** - _string_ - Specify header text, defaults to `My Header` but may also be set to `null`. When set to `null` no header bar will be displayed on the client.

app.js

@@ -48,8 +48,13 @@ app.get('/ssh/host/:host?', function (req, res, next) {
     keepaliveCountMax: config.ssh.keepaliveCountMax,
     term: (/^(([a-z]|[A-Z]|[0-9]|[!^(){}\-_~])+)?\w$/.test(req.query.sshterm) &&
       req.query.sshterm) || config.ssh.term,
-    allowreplay: validator.isBoolean(req.headers.allowreplay + '') || false,
-    sessionID: validator.isAlphanumeric(req.headers.sessionID + '') || false,
+    terminal: {
+      cursorBlink: (validator.isBoolean(req.query.cursorBlink + '') ? myutil.parseBool(req.query.cursorBlink) : config.terminal.cursorBlink),
+      scrollback: config.terminal.scrollback,
+      tabStopWidth: config.terminal.tabStopWidth
+    },
+    allowreplay: (validator.isBoolean(req.headers.allowreplay + '') ? myutil.parseBool(req.headers.allowreplay) : false),
+    MRH_Session: validator.isAlphanumeric(req.headers.lastMRH_Session + '') && req.headers.lastMRH_Session || 'none',
     serverlog: {
       client: config.serverlog.client || false,
       server: config.serverlog.server || false

config.json

@@ -15,6 +15,11 @@
     "keepaliveInterval": 120000,
     "keepaliveCountMax": 10
   },
+  "terminal": {
+    "cursorBlink": true,
+    "scrollback": 10000,
+    "tabStopWidth": 8
+  },
   "useminified": false,
   "header": {
     "text": null,

public/webssh2.bundle.js

@@ -125,15 +125,20 @@ logBtn.addEventListener('click', toggleLog)
 logBtn.style.color = '#000'
 
 var terminalContainer = document.getElementById('terminal-container')
-
-var term = new __WEBPACK_IMPORTED_MODULE_1__node_modules_xterm_dist_xterm__({
-  cursorBlink: true
-})
 var socket, termid // eslint-disable-line
+var term = new __WEBPACK_IMPORTED_MODULE_1__node_modules_xterm_dist_xterm__()
 term.open(terminalContainer)
 term.focus()
 term.fit()
 
+document.body.onresize = function () {
+  term.fit()
+  term.resize(term.cols, term.rows)
+  console.log('document resize...')
+  console.log('geometry cols: ' + term.cols + ' rows: ' + term.rows)
+  socket.emit('resize', {cols: term.cols, rows: term.rows})
+}
+
 if (document.location.pathname) {
   var parts = document.location.pathname.split('/')
   var base = parts.slice(0, parts.length - 1).join('/') + '/'
@@ -149,6 +154,12 @@ socket.on('connect', function () {
   socket.emit('geometry', term.cols, term.rows)
   console.log('geometry cols: ' + term.cols + ' rows: ' + term.rows)
 })
+socket.on('setTerminalOpts', function (data) {
+  console.log('terminalOpts: ' + JSON.stringify(data))
+  term.setOption('cursorBlink', data.cursorBlink)
+  term.setOption('scrollback', data.scrollback)
+  term.setOption('tabStopWidth', data.tabStopWidth)
+})
 term.on('data', function (data) {
   socket.emit('data', data)
 })

socket.js

@@ -29,8 +29,10 @@ module.exports = function socket (socket) {
   })
 
   conn.on('ready', function connOnReady () {
-    console.log('WebSSH2 Login: user=' + socket.request.session.username + ' from=' + socket.handshake.address + ' host=' + socket.request.session.ssh.host + ' port=' + socket.request.session.ssh.port + ' sessionID=' + socket.request.sessionID + '/' + socket.id + ' allowreplay=' + socket.request.session.ssh.allowreplay + ' term=' + socket.request.session.ssh.term)
+    console.log('WebSSH2 Login: user=' + socket.request.session.username + ' from=' + socket.handshake.address + ' host=' + socket.request.session.ssh.host + ' port=' + socket.request.session.ssh.port + ' sessionID=' + socket.request.sessionID + '/' + socket.id + ' MRH_Session=' + socket.request.session.ssh.MRH_Session + ' allowreplay=' + socket.request.session.ssh.allowreplay + ' term=' + socket.request.session.ssh.term)
+    socket.emit('setTerminalOpts', socket.request.session.ssh.terminal)
     socket.emit('title', 'ssh://' + socket.request.session.ssh.host)
+    console.log('terminal: ' + JSON.stringify(socket.request.session.ssh.terminal))
     if (socket.request.session.ssh.header.background) socket.emit('headerBackground', socket.request.session.ssh.header.background)
     if (socket.request.session.ssh.header.name) socket.emit('header', socket.request.session.ssh.header.name)
     socket.emit('footer', 'ssh://' + socket.request.session.username + '@' + socket.request.session.ssh.host + ':' + socket.request.session.ssh.port)
@@ -64,12 +66,17 @@ module.exports = function socket (socket) {
       socket.on('control', function socketOnControl (controlData) {
         switch (controlData) {
           case 'replayCredentials':
-            stream.write(socket.request.session.userpassword + '\n')
+            if (socket.request.session.ssh.allowreplay) {
+              stream.write(socket.request.session.userpassword + '\n')
+            }
           /* falls through */
           default:
             console.log('controlData: ' + controlData)
         }
       })
+      socket.on('resize', function socketOnResize (data) {
+        stream.setWindow(data.rows, data.cols)
+      })
       socket.on('disconnecting', function socketOnDisconnecting (reason) { debugWebSSH2('SOCKET DISCONNECTING: ' + reason) })
       socket.on('disconnect', function socketOnDisconnect (reason) {
         debugWebSSH2('SOCKET DISCONNECT: ' + reason)

src/js/index.js

@@ -37,15 +37,20 @@ logBtn.addEventListener('click', toggleLog)
 logBtn.style.color = '#000'
 
 var terminalContainer = document.getElementById('terminal-container')
-
-var term = new Terminal({
-  cursorBlink: true
-})
 var socket, termid // eslint-disable-line
+var term = new Terminal()
 term.open(terminalContainer)
 term.focus()
 term.fit()
 
+document.body.onresize = function () {
+  term.fit()
+  term.resize(term.cols, term.rows)
+  console.log('document resize...')
+  console.log('geometry cols: ' + term.cols + ' rows: ' + term.rows)
+  socket.emit('resize', {cols: term.cols, rows: term.rows})
+}
+
 if (document.location.pathname) {
   var parts = document.location.pathname.split('/')
   var base = parts.slice(0, parts.length - 1).join('/') + '/'
@@ -61,6 +66,12 @@ socket.on('connect', function () {
   socket.emit('geometry', term.cols, term.rows)
   console.log('geometry cols: ' + term.cols + ' rows: ' + term.rows)
 })
+socket.on('setTerminalOpts', function (data) {
+  console.log('terminalOpts: ' + JSON.stringify(data))
+  term.setOption('cursorBlink', data.cursorBlink)
+  term.setOption('scrollback', data.scrollback)
+  term.setOption('tabStopWidth', data.tabStopWidth)
+})
 term.on('data', function (data) {
   socket.emit('data', data)
 })

util.js

@@ -21,3 +21,8 @@ exports.basicAuth = function basicAuth (req, res, next) {
     res.end('Username and password required for web SSH service.')
   }
 }
+
+// takes a string, makes it boolean (true if the string is true, false otherwise)
+exports.parseBool = function parseBool (str) {
+  return (str.toLowerCase() === 'true')
+}