feat: Improve security of access tokens (#279)

Closes #275

server/api/helpers/utils/create-token.js

@@ -0,0 +1,29 @@
+const jwt = require('jsonwebtoken');
+
+module.exports = {
+  sync: true,
+
+  inputs: {
+    subject: {
+      type: 'json',
+      required: true,
+    },
+    issuedAt: {
+      type: 'ref',
+    },
+  },
+
+  fn(inputs) {
+    const { issuedAt = new Date() } = inputs;
+    const iat = Math.floor(issuedAt / 1000);
+
+    return jwt.sign(
+      {
+        iat,
+        sub: inputs.subject,
+        exp: iat + sails.config.custom.tokenExpiresIn * 24 * 60 * 60,
+      },
+      sails.config.session.secret,
+    );
+  },
+};

server/api/helpers/utils/sign-token.js

@@ -1,16 +0,0 @@
-const jwt = require('jsonwebtoken');
-
-module.exports = {
-  sync: true,
-
-  inputs: {
-    payload: {
-      type: 'json',
-      required: true,
-    },
-  },
-
-  fn(inputs) {
-    return jwt.sign(inputs.payload, sails.config.session.secret);
-  },
-};

server/api/helpers/utils/verify-token.js

@@ -15,10 +15,16 @@ module.exports = {
   },
 
   fn(inputs) {
+    let payload;
     try {
-      return jwt.verify(inputs.token, sails.config.session.secret);
+      payload = jwt.verify(inputs.token, sails.config.session.secret);
     } catch (error) {
       throw 'invalidToken';
     }
+
+    return {
+      subject: payload.sub,
+      issuedAt: new Date(payload.iat * 1000),
+    };
   },
 };