Superalgos Network: Query User Profiles debugged
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Luis Fernando Molina committed
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@@ -7,7 +7,6 @@ exports.newNetworkModulesWebSocketsClient = function newNetworkModulesWebSockets
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}
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let socketClient
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let callbackFunction
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let web3 = new SA.nodeModules.web3()
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let called = {}
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@@ -25,7 +24,7 @@ exports.newNetworkModulesWebSocketsClient = function newNetworkModulesWebSockets
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called = undefined
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}
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function initialize() {
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async function initialize() {
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/*
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Here we will pick a Network Node from all users profiles available that do have a Network Node running. // TODO
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In the meantime, we will assume that we have chosen the following Network Node to connect to.
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@@ -44,203 +43,204 @@ exports.newNetworkModulesWebSocketsClient = function newNetworkModulesWebSockets
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socketClient = new SA.nodeModules.ws('ws://' + selectedNetworkNode.host + ':' + selectedNetworkNode.port)
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setUpWebsocketClient()
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await setUpWebsocketClient()
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}
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function setUpWebsocketClient() {
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try {
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let handshakeDone = false
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async function setUpWebsocketClient() {
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socketClient.onopen = () => { onConnection() }
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socketClient.onerror = err => { onError(err) }
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return new Promise(connectToNewtwork)
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function onConnection() {
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function connectToNewtwork(resolve, reject) {
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handshakeProcedure()
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try {
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function handshakeProcedure() {
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socketClient.onopen = () => { onConnection() }
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socketClient.onerror = err => { onError(err) }
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let callerTimestamp
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function onConnection() {
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stepOneRequest()
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handshakeProcedure()
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function stepOneRequest() {
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/*
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Send Handshake Message Step One:
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At Step One we will just say hello, identify ourselves
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as a Network Client, and send the Network Node our
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User Profile Handle.
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This Handle will be signed by the Network Node to prove
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it's ouwn identity, and later we will sign it's own handle
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to prove ours.
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*/
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socketClient.onmessage = socketMessage => { stepOneResponse(socketMessage) }
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function handshakeProcedure() {
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callerTimestamp = (new Date()).valueOf()
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let callerTimestamp
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let message = {
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messageType: 'Handshake',
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callerRole: 'Network Client',
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callerProfileHandle: DK.TEST_NETWORK_CLIENT_USER_PROFILE_HANDLE,
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callerTimestamp: callerTimestamp,
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step: 'One'
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}
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socketClient.send(JSON.stringify(message))
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}
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stepOneRequest()
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function stepOneResponse(socketMessage) {
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let response = JSON.parse(socketMessage.data)
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function stepOneRequest() {
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/*
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Send Handshake Message Step One:
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At Step One we will just say hello, identify ourselves
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as a Network Client, and send the Network Node our
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User Profile Handle.
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This Handle will be signed by the Network Node to prove
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it's ouwn identity, and later we will sign it's own handle
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to prove ours.
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*/
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socketClient.onmessage = socketMessage => { stepOneResponse(socketMessage) }
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if (response.result !== 'Ok') {
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console.log('[ERROR] Web Sockets Client -> stepOneResponse -> response.message = ' + response.message)
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return
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callerTimestamp = (new Date()).valueOf()
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let message = {
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messageType: 'Handshake',
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callerRole: 'Network Client',
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callerProfileHandle: DK.TEST_NETWORK_CLIENT_USER_PROFILE_HANDLE,
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callerTimestamp: callerTimestamp,
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step: 'One'
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}
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socketClient.send(JSON.stringify(message))
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}
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let signature = JSON.parse(response.signature)
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called.blockchainAccount = web3.eth.accounts.recover(signature)
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/*
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We will check that the signature received produces a valid Blockchain Account.
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*/
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if (called.blockchainAccount === undefined) {
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console.log('[ERROR] Web Sockets Client -> stepOneResponse -> Signature does not produce a valid Blockchain Account.')
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return
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}
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/*
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We will check that the blockchain account taken from the signature matches
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the one we have on record for the user profile of the Network Node we are calling.
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*/
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if (called.blockchainAccount !== selectedNetworkNode.blockchainAccount) {
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console.log('[ERROR] Web Sockets Client -> stepOneResponse -> The Network Node called does not have the expected Profile Handle.')
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return
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function stepOneResponse(socketMessage) {
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let response = JSON.parse(socketMessage.data)
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if (response.result !== 'Ok') {
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console.log('[ERROR] Web Sockets Client -> stepOneResponse -> response.message = ' + response.message)
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reject()
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}
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let signature = JSON.parse(response.signature)
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called.blockchainAccount = web3.eth.accounts.recover(signature)
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/*
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We will check that the signature received produces a valid Blockchain Account.
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*/
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if (called.blockchainAccount === undefined) {
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console.log('[ERROR] Web Sockets Client -> stepOneResponse -> Signature does not produce a valid Blockchain Account.')
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reject()
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}
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/*
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We will check that the blockchain account taken from the signature matches
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the one we have on record for the user profile of the Network Node we are calling.
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*/
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if (called.blockchainAccount !== selectedNetworkNode.blockchainAccount) {
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console.log('[ERROR] Web Sockets Client -> stepOneResponse -> The Network Node called does not have the expected Profile Handle.')
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reject()
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}
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let signedMessage = JSON.parse(signature.message)
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/*
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We will check that the Network Node that responded has the same User Profile Handle
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that we have on record, otherwise something is wrong and we should not proceed.
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*/
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if (signedMessage.calledProfileHandle !== selectedNetworkNode.userProfileHandle) {
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console.log('[ERROR] Web Sockets Client -> stepOneResponse -> The Network Node called does not have the expected Profile Handle.')
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reject()
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}
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/*
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We will check that the profile handle we sent to the Network Node, is returned at the
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signed message, to avoid man in the middle attackts.
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*/
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if (signedMessage.callerProfileHandle !== DK.TEST_NETWORK_CLIENT_USER_PROFILE_HANDLE) {
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console.log('[ERROR] Web Sockets Client -> stepOneResponse -> The Network Node callerProfileHandle does not match my own userProfileHandle.')
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reject()
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}
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/*
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We will also check that the callerTimestamp we sent to the Network Node, is returned at the
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signed message, also to avoid man in the middle attackts.
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*/
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if (signedMessage.callerTimestamp !== callerTimestamp) {
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console.log('[ERROR] Web Sockets Client -> stepOneResponse -> The Network Node callerTimestamp does not match my own callerTimestamp.')
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reject()
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}
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/*
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All validations passed, it seems we can continue with Step Two.
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*/
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stepTwoRequest(signedMessage)
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}
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let signedMessage = JSON.parse(signature.message)
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function stepTwoRequest(signedMessage) {
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/*
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Send Handshake Message Step Two:
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Here we will sign a message with the Network Node profile
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handle and timestamp to prove our own identity.
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*/
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socketClient.onmessage = socketMessage => { stepTwoResponse(socketMessage) }
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/*
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We will check that the Network Node that responded has the same User Profile Handle
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that we have on record, otherwise something is wrong and we should not proceed.
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*/
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if (signedMessage.calledProfileHandle !== selectedNetworkNode.userProfileHandle) {
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console.log('[ERROR] Web Sockets Client -> stepOneResponse -> The Network Node called does not have the expected Profile Handle.')
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return
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}
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/*
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We will check that the profile handle we sent to the Network Node, is returned at the
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signed message, to avoid man in the middle attackts.
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*/
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if (signedMessage.callerProfileHandle !== DK.TEST_NETWORK_CLIENT_USER_PROFILE_HANDLE) {
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console.log('[ERROR] Web Sockets Client -> stepOneResponse -> The Network Node callerProfileHandle does not match my own userProfileHandle.')
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return
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}
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/*
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We will also check that the callerTimestamp we sent to the Network Node, is returned at the
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signed message, also to avoid man in the middle attackts.
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*/
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if (signedMessage.callerTimestamp !== callerTimestamp) {
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console.log('[ERROR] Web Sockets Client -> stepOneResponse -> The Network Node callerTimestamp does not match my own callerTimestamp.')
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return
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let signature = web3.eth.accounts.sign(JSON.stringify(signedMessage), DK.TEST_NETWORK_CLIENT_USER_PROFILE_PRIVATE_KEY)
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let message = {
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messageType: 'Handshake',
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signature: JSON.stringify(signature),
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step: 'Two'
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}
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socketClient.send(JSON.stringify(message))
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}
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/*
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All validations passed, it seems we can continue with Step Two.
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*/
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stepTwoRequest(signedMessage)
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}
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function stepTwoResponse(socketMessage) {
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let response = JSON.parse(socketMessage.data)
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function stepTwoRequest(signedMessage) {
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/*
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Send Handshake Message Step Two:
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Here we will sign a message with the Network Node profile
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handle and timestamp to prove our own identity.
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*/
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socketClient.onmessage = socketMessage => { stepTwoResponse(socketMessage) }
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let signature = web3.eth.accounts.sign(JSON.stringify(signedMessage), DK.TEST_NETWORK_CLIENT_USER_PROFILE_PRIVATE_KEY)
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let message = {
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messageType: 'Handshake',
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signature: JSON.stringify(signature),
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step: 'Two'
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if (response.result !== 'Ok') {
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console.log('[ERROR] Web Sockets Client -> stepOneResponse -> response.message = ' + response.message)
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reject()
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}
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console.log('[INFO] Web Sockets Client -> stepTwoResponse -> response.message = ' + response.message)
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/*
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This was the end of the Handshake producere. We are connected to the
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Network Node and from now on, all response messages will be received
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at this following function.
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*/
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resolve()
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}
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socketClient.send(JSON.stringify(message))
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}
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function stepTwoResponse(socketMessage) {
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let response = JSON.parse(socketMessage.data)
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if (response.result !== 'Ok') {
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console.log('[ERROR] Web Sockets Client -> stepOneResponse -> response.message = ' + response.message)
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return
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}
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console.log('[INFO] Web Sockets Client -> stepTwoResponse -> response.message = ' + response.message)
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/*
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This was the end of the Handshake producere. We are connected to the
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Network Node and from now on, all response messages will be received
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at this following function.
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*/
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socketClient.onmessage = socketMessage => { onMenssage(socketMessage) }
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}
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}
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function onError(err) {
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console.log('[ERROR] Web Sockets Client -> onError -> err.message = ' + err.message)
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console.log('[ERROR] Web Sockets Client -> onError -> err.stack = ' + err.stack)
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}
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} catch (err) {
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console.log('[ERROR] Web Sockets Client -> setUpWebsocketClient -> err.stack = ' + err.stack)
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}
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async function onMenssage(socketMessage) {
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}
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}
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function sendMessage(message) {
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return new Promise(sendSocketMessage)
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function sendSocketMessage(resolve, reject) {
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if (socketClient.readyState !== 1) { // 1 means connected and ready.
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console.log('[ERROR] Web Sockets Client -> sendMessage -> Cannot send message while connection is closed.')
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reject('Websockets Connection Not Ready.')
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}
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let socketMessage = {
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messageType: 'Request',
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payload: message
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}
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socketClient.onmessage = socketMessage => { onMenssage(socketMessage) }
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socketClient.send(
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JSON.stringify(socketMessage)
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)
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function onMenssage(socketMessage) {
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try {
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let response = JSON.parse(socketMessage.data)
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/*
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Chack if we are waiting for the Handshake response.
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*/
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if (handshakeDone === false) {
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if (response.result === 'Ok') {
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handshakeDone = true
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return
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} else {
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console.log('[ERROR] Web Sockets Client -> onMenssage -> handshakeDone -> response.message = ' + response.message)
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return
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}
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}
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callbackFunction.receiveResponse(response.message)
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callbackFunction = undefined
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if (response.result === 'Ok') {
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resolve(response.data)
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} else {
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console.log('[ERROR] Web Sockets Client -> onMenssage -> response.message = ' + response.message)
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reject(response.message)
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}
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} catch (err) {
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callbackFunction = undefined
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console.log('[ERROR] Web Sockets Client -> err.stack = ' + err.stack)
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}
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}
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function onError(err) {
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console.log('[ERROR] Web Sockets Client -> onError -> err.message = ' + err.message)
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console.log('[ERROR] Web Sockets Client -> onError -> err.stack = ' + err.stack)
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}
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} catch (err) {
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console.log('[ERROR] Web Sockets Client -> setUpWebsocketClient -> err.stack = ' + err.stack)
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}
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}
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function sendMessage(message, callback) {
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if (callbackFunction !== undefined) {
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console.log('[ERROR] Web Sockets Client -> sendMessage -> Cannot send more messages while waiting for a response.')
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return false
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}
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if (socketClient.readyState !== 1) { // 1 means connected and ready.
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console.log('[ERROR] Web Sockets Client -> sendMessage -> Cannot send message while connection is closed.')
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return false
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}
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try {
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callbackFunction = callback
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socketClient.send(message)
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return true
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} catch (err) {
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callbackFunction = false
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console.log('[ERROR] Web Sockets Client -> sendMessage -> err.stack = ' + err.stack)
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return false
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}
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}
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}
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