Updates README. Adds localStorage.clear() (patch)

README.md

@@ -1,6 +1,8 @@
 # gun-restrict-examples
 
-Examples of how to restrict put with [GUN](https://github.com/amark/gun)
+Examples of how to restrict put and get with [GUN](https://github.com/amark/gun)
+
+The solutions are based on an answer from [stackoverflow](https://stackoverflow.com/questions/38598391/jwt-authentication-with-gundb)
 
 ## Setup
 

gun-servers/server-gun-restricted.js

@@ -0,0 +1,47 @@
+const port = 8000
+const Gun = require('gun')
+
+function hasValidToken (msg) {
+  return msg && msg.headers && msg.headers.token && msg.headers.token === 'thisIsTheTokenForReals'
+}
+
+// Add listener
+Gun.on('opt', function (ctx) {
+  if (ctx.once) {
+    return
+  }
+  // Check all incoming traffic
+  ctx.on('in', function (msg) {
+    var to = this.to
+    // restrict everything with invalid tokens
+    if (msg.put || msg.get) {
+      if (hasValidToken(msg)) {
+        console.log('okay')
+        to.next(msg)
+      } else {
+        console.log('not okay')
+        console.log(msg)
+      }
+    } else {
+      console.log(msg)
+      to.next(msg)
+    }
+  })
+})
+
+const server = require('http').createServer((req, res) => {
+  // filters gun requests!
+  if (Gun.serve(req, res)) {
+    return
+  }
+})
+
+Gun({
+  file: 'data.json',
+  web: server
+})
+
+server.listen(port)
+
+console.log('Server started on port ' + port + ' with /gun')
+console.log('Use CTRL + C to stop it')

package.json

@@ -7,6 +7,7 @@
     "test": "standard",
     "restricted-put": "node gun-servers/server-gun-restricted-put",
     "unrestricted": "node gun-servers/server-gun-unrestricted",
+    "restricted": "node gun-servers/server-gun-restricted",
     "tunnel": "node tunnel",
     "start": "node www/server",
     "start-unauth": "node www/server-unauthenticated"

www/authenticated.js

@@ -1,3 +1,5 @@
+localStorage.clear()
+
 function init () {
   addListener(document.getElementById('gunForm'), 'submit', addLine)
 }

www/not-authenticated.js

@@ -1,3 +1,5 @@
+localStorage.clear()
+
 function init () {
   addListener(document.getElementById('gunForm'), 'submit', addLine)
 }

www/tunnel-url.js

@@ -1 +1 @@
-const tunnelUrl = 'https://3fa07bc7.ngrok.io'
+const tunnelUrl = 'https://4f9d3630.ngrok.io'