js-libp2p-interfaces/test/pubsub/topic-validators.spec.js
Cayman 946b046440
feat: pubsub: add global signature policy (#66)
BREAKING CHANGE:
`signMessages` and `strictSigning` pubsub configuration options replaced
with a `globalSignaturePolicy` option
2020-11-03 18:22:03 +01:00

105 lines
2.7 KiB
JavaScript

/* eslint-env mocha */
'use strict'
const { expect } = require('aegir/utils/chai')
const sinon = require('sinon')
const pWaitFor = require('p-wait-for')
const errCode = require('err-code')
const PeerId = require('peer-id')
const uint8ArrayEquals = require('uint8arrays/equals')
const uint8ArrayFromString = require('uint8arrays/from-string')
const PeerStreams = require('../../src/pubsub/peer-streams')
const { SignaturePolicy } = require('../../src/pubsub/signature-policy')
const {
createPeerId,
mockRegistrar,
PubsubImplementation
} = require('./utils')
const protocol = '/pubsub/1.0.0'
describe('topic validators', () => {
let pubsub
beforeEach(async () => {
const peerId = await createPeerId()
pubsub = new PubsubImplementation(protocol, {
peerId: peerId,
registrar: mockRegistrar
}, {
globalSignaturePolicy: SignaturePolicy.StrictNoSign
})
pubsub.start()
})
afterEach(() => {
sinon.restore()
})
it('should filter messages by topic validator', async () => {
// use _publish.callCount() to see if a message is valid or not
sinon.spy(pubsub, '_publish')
sinon.stub(pubsub.peers, 'get').returns({})
const filteredTopic = 't'
const peer = new PeerStreams({ id: await PeerId.create() })
// Set a trivial topic validator
pubsub.topicValidators.set(filteredTopic, (topic, message) => {
if (!uint8ArrayEquals(message.data, uint8ArrayFromString('a message'))) {
throw errCode(new Error(), 'ERR_TOPIC_VALIDATOR_REJECT')
}
})
// valid case
const validRpc = {
subscriptions: [],
msgs: [{
data: uint8ArrayFromString('a message'),
topicIDs: [filteredTopic]
}]
}
// process valid message
pubsub.subscribe(filteredTopic)
pubsub._processRpc(peer.id.toB58String(), peer, validRpc)
await pWaitFor(() => pubsub._publish.callCount === 1)
// invalid case
const invalidRpc = {
subscriptions: [],
msgs: [{
data: uint8ArrayFromString('a different message'),
topicIDs: [filteredTopic]
}]
}
// process invalid message
pubsub._processRpc(peer.id.toB58String(), peer, invalidRpc)
expect(pubsub._publish.callCount).to.eql(1)
// remove topic validator
pubsub.topicValidators.delete(filteredTopic)
// another invalid case
const invalidRpc2 = {
subscriptions: [],
msgs: [{
data: uint8ArrayFromString('a different message'),
topicIDs: [filteredTopic]
}]
}
// process previously invalid message, now is valid
pubsub._processRpc(peer.id.toB58String(), peer, invalidRpc2)
pubsub.unsubscribe(filteredTopic)
await pWaitFor(() => pubsub._publish.callCount === 2)
})
})