lnc-web: Add function to clear all stored data

Author: kaloudis

lib/index.ts

@@ -119,20 +119,22 @@ export default class LNC {
         this.salt = '';
         this.testCipher = '';
 
-        if (localStorage.getItem(`${this._namespace}:salt`)) {
-            this.salt = localStorage.getItem(`${this._namespace}:salt`) || '';
+        if (localStorage.getItem(`lnc-web:${this._namespace}:salt`)) {
+            this.salt =
+                localStorage.getItem(`lnc-web:${this._namespace}:salt`) || '';
         } else if (!this._onLocalPrivCreate && !this._onRemoteKeyReceive) {
             this.salt = generateSalt();
-            localStorage.setItem(`${this._namespace}:salt`, this.salt);
+            localStorage.setItem(`lnc-web:${this._namespace}:salt`, this.salt);
         }
 
-        if (localStorage.getItem(`${this._namespace}:testCipher`)) {
+        if (localStorage.getItem(`lnc-web:${this._namespace}:testCipher`)) {
             this.testCipher =
-                localStorage.getItem(`${this._namespace}:testCipher`) || '';
+                localStorage.getItem(`lnc-web:${this._namespace}:testCipher`) ||
+                '';
         } else if (!this._onLocalPrivCreate && !this._onRemoteKeyReceive) {
             this.testCipher = createTestCipher(this._password, this.salt);
             localStorage.setItem(
-                `${this._namespace}:testCipher`,
+                `lnc-web:${this._namespace}:testCipher`,
                 this.testCipher
             );
         }
@@ -150,15 +152,15 @@ export default class LNC {
     onLocalPrivCreate = (keyHex: string) => {
         log.debug('local private key created: ' + keyHex);
         localStorage.setItem(
-            `${this._namespace}:localKey`,
+            `lnc-web:${this._namespace}:localKey`,
             this._password ? encrypt(keyHex, this._password, this.salt) : keyHex
         );
     };
 
     onRemoteKeyReceive = (keyHex: string) => {
         log.debug('remote key received: ' + keyHex);
         localStorage.setItem(
-            `${this._namespace}:remoteKey`,
+            `lnc-web:${this._namespace}:remoteKey`,
             this._password ? encrypt(keyHex, this._password, this.salt) : keyHex
         );
     };
@@ -183,6 +185,12 @@ export default class LNC {
         );
     }
 
+    clearStorage = () =>
+        Object.entries(localStorage)
+            .map((x) => x[0])
+            .filter((x) => x.substring(0, 8) == 'lnc-web:')
+            .map((x) => localStorage.removeItem(x));
+
     /**
      * Downloads the WASM client binary and run
      */
@@ -199,9 +207,11 @@ export default class LNC {
 
             if (this._localKey) {
                 localKey = this._localKey;
-            } else if (localStorage.getItem(`${this._namespace}:localKey`)) {
+            } else if (
+                localStorage.getItem(`lnc-web:${this._namespace}:localKey`)
+            ) {
                 const data = localStorage.getItem(
-                    `${this._namespace}:localKey`
+                    `lnc-web:${this._namespace}:localKey`
                 );
                 if (
                     !verifyTestCipher(
@@ -219,9 +229,11 @@ export default class LNC {
 
             if (this._remoteKey) {
                 remoteKey = this._remoteKey;
-            } else if (localStorage.getItem(`${this._namespace}:remoteKey`)) {
+            } else if (
+                localStorage.getItem(`lnc-web:${this._namespace}:remoteKey`)
+            ) {
                 const data = localStorage.getItem(
-                    `${this._namespace}:remoteKey`
+                    `lnc-web:${this._namespace}:remoteKey`
                 );
                 if (
                     !verifyTestCipher(