Merge pull request #218 from status-im/remove-json

CHANGELOG.md

@@ -16,6 +16,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - **Breaking**: Auto select peer if none provided for store and light push protocols.
 - Upgrade to `libp2p@0.31.7` and `libp2p-gossipsub@0.10.0` to avoid `TextEncoder` errors in ReactJS tests.
 
+### Fixed
+- Disable `keepAlive` if set to `0`.
+
 ## [0.7.0] - 2021-06-15
 
 ### Changed

examples/eth-dm/package-lock.json

@@ -19,6 +19,7 @@
         "ethers": "^5.2.0",
         "fontsource-roboto": "^4.0.0",
         "js-waku": "../../build/main",
+        "protobufjs": "^6.11.2",
         "react": "^17.0.2",
         "react-dom": "^17.0.2",
         "react-scripts": "4.0.3",
@@ -3705,6 +3706,60 @@
         "node": ">= 8"
       }
     },
+    "node_modules/@protobufjs/aspromise": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@protobufjs/aspromise/-/aspromise-1.1.2.tgz",
+      "integrity": "sha1-m4sMxmPWaafY9vXQiToU00jzD78="
+    },
+    "node_modules/@protobufjs/base64": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@protobufjs/base64/-/base64-1.1.2.tgz",
+      "integrity": "sha512-AZkcAA5vnN/v4PDqKyMR5lx7hZttPDgClv83E//FMNhR2TMcLUhfRUBHCmSl0oi9zMgDDqRUJkSxO3wm85+XLg=="
+    },
+    "node_modules/@protobufjs/codegen": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/@protobufjs/codegen/-/codegen-2.0.4.tgz",
+      "integrity": "sha512-YyFaikqM5sH0ziFZCN3xDC7zeGaB/d0IUb9CATugHWbd1FRFwWwt4ld4OYMPWu5a3Xe01mGAULCdqhMlPl29Jg=="
+    },
+    "node_modules/@protobufjs/eventemitter": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@protobufjs/eventemitter/-/eventemitter-1.1.0.tgz",
+      "integrity": "sha1-NVy8mLr61ZePntCV85diHx0Ga3A="
+    },
+    "node_modules/@protobufjs/fetch": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@protobufjs/fetch/-/fetch-1.1.0.tgz",
+      "integrity": "sha1-upn7WYYUr2VwDBYZ/wbUVLDYTEU=",
+      "dependencies": {
+        "@protobufjs/aspromise": "^1.1.1",
+        "@protobufjs/inquire": "^1.1.0"
+      }
+    },
+    "node_modules/@protobufjs/float": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/@protobufjs/float/-/float-1.0.2.tgz",
+      "integrity": "sha1-Xp4avctz/Ap8uLKR33jIy9l7h9E="
+    },
+    "node_modules/@protobufjs/inquire": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@protobufjs/inquire/-/inquire-1.1.0.tgz",
+      "integrity": "sha1-/yAOPnzyQp4tyvwRQIKOjMY48Ik="
+    },
+    "node_modules/@protobufjs/path": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@protobufjs/path/-/path-1.1.2.tgz",
+      "integrity": "sha1-bMKyDFya1q0NzP0hynZz2Nf79o0="
+    },
+    "node_modules/@protobufjs/pool": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@protobufjs/pool/-/pool-1.1.0.tgz",
+      "integrity": "sha1-Cf0V8tbTq/qbZbw2ZQbWrXhG/1Q="
+    },
+    "node_modules/@protobufjs/utf8": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@protobufjs/utf8/-/utf8-1.1.0.tgz",
+      "integrity": "sha1-p3c2C1s5oaLlEG+OhY8v0tBgxXA="
+    },
     "node_modules/@rollup/plugin-node-resolve": {
       "version": "7.1.3",
       "resolved": "https://registry.npmjs.org/@rollup/plugin-node-resolve/-/plugin-node-resolve-7.1.3.tgz",
@@ -4204,6 +4259,11 @@
       "resolved": "https://registry.npmjs.org/@types/json5/-/json5-0.0.29.tgz",
       "integrity": "sha1-7ihweulOEdK4J7y+UnC86n8+ce4="
     },
+    "node_modules/@types/long": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/@types/long/-/long-4.0.1.tgz",
+      "integrity": "sha512-5tXH6Bx/kNGd3MgffdmP4dy2Z+G4eaXw0SE81Tq3BNadtnMR5/ySMzX4SLEzHJzSmPNn4HIdpQsBvXMUykr58w=="
+    },
     "node_modules/@types/minimatch": {
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/@types/minimatch/-/minimatch-3.0.4.tgz",
@@ -14838,6 +14898,11 @@
         "url": "https://tidelift.com/funding/github/npm/loglevel"
       }
     },
+    "node_modules/long": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/long/-/long-4.0.0.tgz",
+      "integrity": "sha512-XsP+KhQif4bjX1kbuSiySJFNAehNxgLb6hPRGJ9QsUr8ajHkuXGdrHmFUTUUXhDwVX2R5bY4JNZEwbUiMhV+MA=="
+    },
     "node_modules/loose-envify": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/loose-envify/-/loose-envify-1.4.0.tgz",
@@ -17973,6 +18038,31 @@
       "resolved": "https://registry.npmjs.org/react-is/-/react-is-16.13.1.tgz",
       "integrity": "sha512-24e6ynE2H+OKt4kqsOvNd8kBpV65zoxbA4BVsEOB3ARVWQki/DHzaUoC5KuON/BiccDaCCTZBuOcfZs70kR8bQ=="
     },
+    "node_modules/protobufjs": {
+      "version": "6.11.2",
+      "resolved": "https://registry.npmjs.org/protobufjs/-/protobufjs-6.11.2.tgz",
+      "integrity": "sha512-4BQJoPooKJl2G9j3XftkIXjoC9C0Av2NOrWmbLWT1vH32GcSUHjM0Arra6UfTsVyfMAuFzaLucXn1sadxJydAw==",
+      "hasInstallScript": true,
+      "dependencies": {
+        "@protobufjs/aspromise": "^1.1.2",
+        "@protobufjs/base64": "^1.1.2",
+        "@protobufjs/codegen": "^2.0.4",
+        "@protobufjs/eventemitter": "^1.1.0",
+        "@protobufjs/fetch": "^1.1.0",
+        "@protobufjs/float": "^1.0.2",
+        "@protobufjs/inquire": "^1.1.0",
+        "@protobufjs/path": "^1.1.2",
+        "@protobufjs/pool": "^1.1.0",
+        "@protobufjs/utf8": "^1.1.0",
+        "@types/long": "^4.0.1",
+        "@types/node": ">=13.7.0",
+        "long": "^4.0.0"
+      },
+      "bin": {
+        "pbjs": "bin/pbjs",
+        "pbts": "bin/pbts"
+      }
+    },
     "node_modules/proxy-addr": {
       "version": "2.0.7",
       "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.7.tgz",
@@ -26672,6 +26762,60 @@
         }
       }
     },
+    "@protobufjs/aspromise": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@protobufjs/aspromise/-/aspromise-1.1.2.tgz",
+      "integrity": "sha1-m4sMxmPWaafY9vXQiToU00jzD78="
+    },
+    "@protobufjs/base64": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@protobufjs/base64/-/base64-1.1.2.tgz",
+      "integrity": "sha512-AZkcAA5vnN/v4PDqKyMR5lx7hZttPDgClv83E//FMNhR2TMcLUhfRUBHCmSl0oi9zMgDDqRUJkSxO3wm85+XLg=="
+    },
+    "@protobufjs/codegen": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/@protobufjs/codegen/-/codegen-2.0.4.tgz",
+      "integrity": "sha512-YyFaikqM5sH0ziFZCN3xDC7zeGaB/d0IUb9CATugHWbd1FRFwWwt4ld4OYMPWu5a3Xe01mGAULCdqhMlPl29Jg=="
+    },
+    "@protobufjs/eventemitter": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@protobufjs/eventemitter/-/eventemitter-1.1.0.tgz",
+      "integrity": "sha1-NVy8mLr61ZePntCV85diHx0Ga3A="
+    },
+    "@protobufjs/fetch": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@protobufjs/fetch/-/fetch-1.1.0.tgz",
+      "integrity": "sha1-upn7WYYUr2VwDBYZ/wbUVLDYTEU=",
+      "requires": {
+        "@protobufjs/aspromise": "^1.1.1",
+        "@protobufjs/inquire": "^1.1.0"
+      }
+    },
+    "@protobufjs/float": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/@protobufjs/float/-/float-1.0.2.tgz",
+      "integrity": "sha1-Xp4avctz/Ap8uLKR33jIy9l7h9E="
+    },
+    "@protobufjs/inquire": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@protobufjs/inquire/-/inquire-1.1.0.tgz",
+      "integrity": "sha1-/yAOPnzyQp4tyvwRQIKOjMY48Ik="
+    },
+    "@protobufjs/path": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@protobufjs/path/-/path-1.1.2.tgz",
+      "integrity": "sha1-bMKyDFya1q0NzP0hynZz2Nf79o0="
+    },
+    "@protobufjs/pool": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@protobufjs/pool/-/pool-1.1.0.tgz",
+      "integrity": "sha1-Cf0V8tbTq/qbZbw2ZQbWrXhG/1Q="
+    },
+    "@protobufjs/utf8": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@protobufjs/utf8/-/utf8-1.1.0.tgz",
+      "integrity": "sha1-p3c2C1s5oaLlEG+OhY8v0tBgxXA="
+    },
     "@rollup/plugin-node-resolve": {
       "version": "7.1.3",
       "resolved": "https://registry.npmjs.org/@rollup/plugin-node-resolve/-/plugin-node-resolve-7.1.3.tgz",
@@ -27034,6 +27178,11 @@
       "resolved": "https://registry.npmjs.org/@types/json5/-/json5-0.0.29.tgz",
       "integrity": "sha1-7ihweulOEdK4J7y+UnC86n8+ce4="
     },
+    "@types/long": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/@types/long/-/long-4.0.1.tgz",
+      "integrity": "sha512-5tXH6Bx/kNGd3MgffdmP4dy2Z+G4eaXw0SE81Tq3BNadtnMR5/ySMzX4SLEzHJzSmPNn4HIdpQsBvXMUykr58w=="
+    },
     "@types/minimatch": {
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/@types/minimatch/-/minimatch-3.0.4.tgz",
@@ -35215,6 +35364,11 @@
       "resolved": "https://registry.npmjs.org/loglevel/-/loglevel-1.7.1.tgz",
       "integrity": "sha512-Hesni4s5UkWkwCGJMQGAh71PaLUmKFM60dHvq0zi/vDhhrzuk+4GgNbTXJ12YYQJn6ZKBDNIjYcuQGKudvqrIw=="
     },
+    "long": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/long/-/long-4.0.0.tgz",
+      "integrity": "sha512-XsP+KhQif4bjX1kbuSiySJFNAehNxgLb6hPRGJ9QsUr8ajHkuXGdrHmFUTUUXhDwVX2R5bY4JNZEwbUiMhV+MA=="
+    },
     "loose-envify": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/loose-envify/-/loose-envify-1.4.0.tgz",
@@ -37707,6 +37861,26 @@
         }
       }
     },
+    "protobufjs": {
+      "version": "6.11.2",
+      "resolved": "https://registry.npmjs.org/protobufjs/-/protobufjs-6.11.2.tgz",
+      "integrity": "sha512-4BQJoPooKJl2G9j3XftkIXjoC9C0Av2NOrWmbLWT1vH32GcSUHjM0Arra6UfTsVyfMAuFzaLucXn1sadxJydAw==",
+      "requires": {
+        "@protobufjs/aspromise": "^1.1.2",
+        "@protobufjs/base64": "^1.1.2",
+        "@protobufjs/codegen": "^2.0.4",
+        "@protobufjs/eventemitter": "^1.1.0",
+        "@protobufjs/fetch": "^1.1.0",
+        "@protobufjs/float": "^1.0.2",
+        "@protobufjs/inquire": "^1.1.0",
+        "@protobufjs/path": "^1.1.2",
+        "@protobufjs/pool": "^1.1.0",
+        "@protobufjs/utf8": "^1.1.0",
+        "@types/long": "^4.0.1",
+        "@types/node": ">=13.7.0",
+        "long": "^4.0.0"
+      }
+    },
     "proxy-addr": {
       "version": "2.0.7",
       "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.7.tgz",

examples/eth-dm/package.json

@@ -16,6 +16,7 @@
     "ethers": "^5.2.0",
     "fontsource-roboto": "^4.0.0",
     "js-waku": "../../build/main",
+    "protobufjs": "^6.11.2",
     "react": "^17.0.2",
     "react-dom": "^17.0.2",
     "react-scripts": "4.0.3",

examples/eth-dm/src/App.tsx

@@ -83,6 +83,11 @@ function App() {
       .then((address) => setAddress(address));
   });
 
+  let peers;
+  if (waku) {
+    peers = waku.libp2p.connectionManager.connections.size;
+  }
+
   return (
     <ThemeProvider theme={theme}>
       <div className={classes.root}>
@@ -99,6 +104,7 @@ function App() {
                 style={waku ? { color: green[500] } : {}}
               />
             </IconButton>
+            <Typography>{peers}</Typography>
           </Toolbar>
         </AppBar>
 

examples/eth-dm/src/BroadcastPublicKey.tsx

@@ -1,7 +1,7 @@
 import { Button } from '@material-ui/core';
 import React, { useState } from 'react';
 import { createPublicKeyMessage, KeyPair } from './crypto';
-import { encode, PublicKeyMessage } from './messaging/wire';
+import { PublicKeyMessage } from './messaging/wire';
 import { WakuMessage, Waku } from 'js-waku';
 import { Signer } from '@ethersproject/abstract-signer';
 import { PublicKeyContentTopic } from './InitWaku';
@@ -56,7 +56,9 @@ export default function BroadcastPublicKey({
   );
 }
 
-function encodePublicKeyWakuMessage(ethDmMsg: PublicKeyMessage): WakuMessage {
+function encodePublicKeyWakuMessage(
-  const payload = encode(ethDmMsg);
+  publicKeyMessage: PublicKeyMessage
+): WakuMessage {
+  const payload = publicKeyMessage.encode();
   return WakuMessage.fromBytes(payload, PublicKeyContentTopic);
 }

examples/eth-dm/src/InitWaku.tsx

@@ -1,10 +1,15 @@
 import { Dispatch, SetStateAction, useEffect } from 'react';
 import { Environment, getStatusFleetNodes, Waku, WakuMessage } from 'js-waku';
-import { decode, DirectMessage, PublicKeyMessage } from './messaging/wire';
+import {
+  bytesToHexStr,
+  decode,
+  DirectMessage,
+  PublicKeyMessage,
+} from './messaging/wire';
 import { decryptMessage, KeyPair, validatePublicKeyMessage } from './crypto';
 import { Message } from './messaging/Messages';
 
-export const PublicKeyContentTopic = '/eth-dm/1/public-key/json';
+export const PublicKeyContentTopic = '/eth-dm/1/public-key/proto';
 export const DirectMessageContentTopic = '/eth-dm/1/direct-message/json';
 
 interface Props {
@@ -114,16 +119,22 @@ function handlePublicKeyMessage(
   setter: Dispatch<SetStateAction<Map<string, string>>>,
   msg: WakuMessage
 ) {
+  console.log('Public Key Message received:', msg);
   if (!msg.payload) return;
-  const publicKeyMsg: PublicKeyMessage = decode(msg.payload);
+  const publicKeyMsg = PublicKeyMessage.decode(msg.payload);
-  if (publicKeyMsg.ethDmPublicKey === myPublicKey) return;
+  if (!publicKeyMsg) return;
-  const res = validatePublicKeyMessage(publicKeyMsg);
+  const ethDmPublicKey = bytesToHexStr(publicKeyMsg.ethDmPublicKey);
-  console.log(`Public Key Message Received, valid: ${res}`, publicKeyMsg);
+  if (ethDmPublicKey === myPublicKey) return;
 
-  setter((prevPks: Map<string, string>) => {
+  const res = validatePublicKeyMessage(publicKeyMsg);
-    prevPks.set(publicKeyMsg.ethAddress, publicKeyMsg.ethDmPublicKey);
+  console.log('Is Public Key Message valid?', res);
-    return new Map(prevPks);
+
-  });
+  if (res) {
+    setter((prevPks: Map<string, string>) => {
+      prevPks.set(bytesToHexStr(publicKeyMsg.ethAddress), ethDmPublicKey);
+      return new Map(prevPks);
+    });
+  }
 }
 
 async function handleDirectMessage(
@@ -132,10 +143,11 @@ async function handleDirectMessage(
   address: string,
   wakuMsg: WakuMessage
 ) {
-  console.log('Waku Message received:', wakuMsg);
+  console.log('Direct Message received:', wakuMsg);
   if (!wakuMsg.payload) return;
   const directMessage: DirectMessage = decode(wakuMsg.payload);
-  if (directMessage.toAddress !== address) return;
+  // Do not return our own messages
+  if (directMessage.toAddress === address) return;
 
   const text = await decryptMessage(privateKey, directMessage);
 

examples/eth-dm/src/crypto.ts

@@ -3,7 +3,11 @@ import '@ethersproject/shims';
 import * as EthCrypto from 'eth-crypto';
 import { ethers } from 'ethers';
 import { Signer } from '@ethersproject/abstract-signer';
-import { DirectMessage, PublicKeyMessage } from './messaging/wire';
+import {
+  bytesToHexStr,
+  DirectMessage,
+  PublicKeyMessage,
+} from './messaging/wire';
 
 export interface KeyPair {
   privateKey: string;
@@ -29,23 +33,46 @@ export async function createPublicKeyMessage(
   ethDmPublicKey: string
 ): Promise<PublicKeyMessage> {
   const ethAddress = await web3Signer.getAddress();
-  const sig = await web3Signer.signMessage(
+  const bytesEthDmPublicKey = Buffer.from(
-    formatPublicKeyForSignature(ethDmPublicKey)
+    ethDmPublicKey.replace(/0x/, ''),
+    'hex'
   );
-  return { ethDmPublicKey, ethAddress, sig };
+  const signature = await web3Signer.signMessage(
+    formatPublicKeyForSignature(bytesEthDmPublicKey)
+  );
+
+  const bytesEthAddress = Buffer.from(ethAddress.replace(/0x/, ''), 'hex');
+  const bytesSignature = Buffer.from(signature.replace(/0x/, ''), 'hex');
+
+  return new PublicKeyMessage({
+    ethDmPublicKey: bytesEthDmPublicKey,
+    ethAddress: bytesEthAddress,
+    signature: bytesSignature,
+  });
 }
 
 /**
  * Validate that the EthDm Public Key was signed by the holder of the given Ethereum address.
  */
 export function validatePublicKeyMessage(msg: PublicKeyMessage): boolean {
+  const formattedMsg = formatPublicKeyForSignature(msg.ethDmPublicKey);
   try {
-    const sigAddress = ethers.utils.verifyMessage(
+    const sigAddress = ethers.utils.verifyMessage(formattedMsg, msg.signature);
-      formatPublicKeyForSignature(msg.ethDmPublicKey),
+    const sigAddressBytes = Buffer.from(sigAddress.replace(/0x/, ''), 'hex');
-      msg.sig
+    // Compare the actual byte arrays instead of strings that may differ in casing or prefixing.
+    const cmp = sigAddressBytes.compare(new Buffer(msg.ethAddress));
+    console.log(
+      `Buffer comparison result: ${cmp} for (signature address, message address)`,
+      sigAddressBytes,
+      msg.ethAddress
     );
-    return sigAddress === msg.ethAddress;
+    return cmp === 0;
   } catch (e) {
+    console.log(
+      'Failed to verify signature for Public Key Message',
+      formattedMsg,
+      msg
+    );
     return false;
   }
 }
@@ -57,9 +84,9 @@ export function validatePublicKeyMessage(msg: PublicKeyMessage): boolean {
  * The usage of the object helps ensure the signature is only used in an Eth-DM
  * context.
  */
-function formatPublicKeyForSignature(ethDmPublicKey: string): string {
+function formatPublicKeyForSignature(ethDmPublicKey: Uint8Array): string {
   return JSON.stringify({
-    ethDmPublicKey,
+    ethDmPublicKey: bytesToHexStr(ethDmPublicKey),
   });
 }
 

examples/eth-dm/src/messaging/wire.ts

@@ -1,12 +1,64 @@
 import * as EthCrypto from 'eth-crypto';
+import * as protobuf from 'protobufjs/light';
+
+export interface PublicKeyMessagePayload {
+  ethDmPublicKey: Uint8Array;
+  ethAddress: Uint8Array;
+  signature: Uint8Array;
+}
+
+const Root = protobuf.Root,
+  Type = protobuf.Type,
+  Field = protobuf.Field;
 
 /**
  * Message used to communicate the Eth-Dm public key linked to a given Ethereum account
  */
-export interface PublicKeyMessage {
+export class PublicKeyMessage {
-  ethDmPublicKey: string;
+  private static Type = new Type('PublicKeyMessage')
-  ethAddress: string;
+    .add(new Field('ethDmPublicKey', 1, 'bytes'))
-  sig: string;
+    .add(new Field('ethAddress', 2, 'bytes'))
+    .add(new Field('signature', 3, 'bytes'));
+  private static Root = new Root()
+    .define('messages')
+    .add(PublicKeyMessage.Type);
+
+  constructor(public payload: PublicKeyMessagePayload) {}
+
+  public encode(): Uint8Array {
+    const message = PublicKeyMessage.Type.create(this.payload);
+    return PublicKeyMessage.Type.encode(message).finish();
+  }
+
+  public static decode(
+    bytes: Uint8Array | Buffer
+  ): PublicKeyMessage | undefined {
+    const payload = PublicKeyMessage.Type.decode(
+      bytes
+    ) as unknown as PublicKeyMessagePayload;
+    if (!payload.signature || !payload.ethDmPublicKey || !payload.ethAddress) {
+      console.log('Field missing on decoded Public Key Message', payload);
+      return;
+    }
+    return new PublicKeyMessage(payload);
+  }
+
+  get ethDmPublicKey(): Uint8Array {
+    return this.payload.ethDmPublicKey;
+  }
+
+  get ethAddress(): Uint8Array {
+    return this.payload.ethAddress;
+  }
+
+  get signature(): Uint8Array {
+    return this.payload.signature;
+  }
+}
+
+export function bytesToHexStr(bytes: Uint8Array): string {
+  const buf = new Buffer(bytes);
+  return buf.toString('hex');
 }
 
 /**

src/lib/waku.ts

@@ -76,15 +76,20 @@ export class Waku {
     this.lightPush = lightPush;
     this.keepAliveTimers = {};
 
-    const keepAlive = options.keepAlive ? options.keepAlive : 10;
+    const keepAlive = options.keepAlive !== undefined ? options.keepAlive : 10;
 
-    libp2p.connectionManager.on('peer:connect', (connection: Connection) => {
+    if (keepAlive !== 0) {
-      this.startKeepAlive(connection.remotePeer, keepAlive);
+      libp2p.connectionManager.on('peer:connect', (connection: Connection) => {
-    });
+        this.startKeepAlive(connection.remotePeer, keepAlive);
+      });
 
-    libp2p.connectionManager.on('peer:disconnect', (connection: Connection) => {
+      libp2p.connectionManager.on(
-      this.stopKeepAlive(connection.remotePeer);
+        'peer:disconnect',
-    });
+        (connection: Connection) => {
+          this.stopKeepAlive(connection.remotePeer);
+        }
+      );
+    }
   }
 
   /**