Feature/wasm client topology injection (#3311)

* added cargo config file to explicitly specify build target

* wip

* Config option to disable topology refreshing

* extracted common parsing code

* helper trait for working on wasm topology

* wasm topology parsing

* restored (slightly modified) old js-example

* wip

* Moved message preparation into a trait

* wip

* long-winded way of sending test packet

* standalone NymNodeTester

* finishing the test upon receiving all packets even if timeout wasnt reached

* initial round of cleanup

* sending multiple test packets in normal NymClient

* javascript-side cleanup

* starting mixnode test on btn click

* Improved NymNodeTester constructors

* improved error handling and constructors

* tester utils error handling

* further cleanup + using BTreeMap for NymTopology mixnodes

* handling missed errors

* splitting up 'test_node'

* split up and cleaned up generation of test result

* clippy + fixed example

* post rebase fixes

* another broken test

* prevent running multiple parallel tests

* cargo fmt

* Added nym- prefix to node tester utils
This commit is contained in:
Jędrzej Stuczyński
2023-04-24 09:56:26 +01:00
committed by GitHub
parent f24bb5c038
commit cbbeb66b5b
47 changed files with 5192 additions and 299 deletions
Generated
+18
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@@ -3778,6 +3778,24 @@ dependencies = [
"tokio",
]
[[package]]
name = "nym-node-tester-utils"
version = "0.1.0"
dependencies = [
"futures",
"log",
"nym-crypto",
"nym-sphinx",
"nym-task",
"nym-topology",
"rand 0.7.3",
"serde",
"serde_json",
"thiserror",
"tokio",
"wasm-utils",
]
[[package]]
name = "nym-nonexhaustive-delayqueue"
version = "0.1.0"
+1
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@@ -48,6 +48,7 @@ members = [
"common/ledger",
"common/mixnode-common",
"common/network-defaults",
"common/node-tester-utils",
"common/nonexhaustive-delayqueue",
"common/nymcoconut",
"common/nymsphinx",
+2
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@@ -0,0 +1,2 @@
[build]
target = "wasm32-unknown-unknown"
+7
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@@ -17,6 +17,7 @@ default = ["console_error_panic_hook"]
offline-test = []
[dependencies]
bs58 = "0.4.0"
futures = "0.3"
js-sys = "0.3"
rand = { version = "0.7.3", features = ["wasm-bindgen"] }
@@ -28,8 +29,12 @@ tokio = { version = "1.24.1", features = ["sync"] }
url = "2.2"
wasm-bindgen = { version = "=0.2.83", features = ["serde-serialize"] }
wasm-bindgen-futures = "0.4"
thiserror = "1.0.40"
wasm-timer = { git = "https://github.com/mmsinclair/wasm-timer", rev = "b9d1a54ad514c2f230a026afe0dde341e98cd7b6"}
# internal
nym-node-tester-utils = { path = "../../common/node-tester-utils" }
nym-client-core = { path = "../../common/client-core", default-features = false, features = ["wasm"] }
nym-bandwidth-controller = { path = "../../common/bandwidth-controller" }
nym-coconut-interface = { path = "../../common/coconut-interface" }
@@ -37,6 +42,8 @@ nym-credentials = { path = "../../common/credentials" }
nym-credential-storage = { path = "../../common/credential-storage" }
nym-crypto = { path = "../../common/crypto" }
nym-sphinx = { path = "../../common/nymsphinx" }
nym-topology = { path = "../../common/topology" }
nym-gateway-client = { path = "../../common/client-libs/gateway-client", default-features = false, features = ["wasm"] }
nym-validator-client = { path = "../../common/client-libs/validator-client", default-features = false }
wasm-utils = { path = "../../common/wasm-utils" }
nym-task = { path = "../../common/task" }
@@ -0,0 +1,2 @@
node_modules
dist
+5
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@@ -0,0 +1,5 @@
// A dependency graph that contains any wasm must all be imported
// asynchronously. This `bootstrap.js` file does the single async import, so
// that no one else needs to worry about it again.
import('./index.js')
.catch(e => console.error('Error importing `index.js`:', e));
@@ -0,0 +1,43 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Nym WebAssembly Demo</title>
</head>
<body>
<p>
<label>Sender: </label><input disabled="true" size="85" type="text" id="sender" value="">
</p>
<p>
<label>Recipient: </label><input size="85" type="text" id="recipient" value="">
</p>
<p>
<label>Message: </label><input type="text" id="message" value="Hello mixnet!">
</p>
<p>
<button id="send-button">Send</button>
</p>
<div>
<label>Mixnode Identity: </label>
<input type="text" size = "60" id="mixnode_identity" value="...">
<button id="magic-button">✨ Magic Test Button ✨</button>
</div>
<p>Send messages from your browser, through the mixnet, and to the recipient using the "send" button.</p>
<p><span style='color: blue;'>Sent</span> messages show in blue, <span style='color: green;'>received</span>
messages show in green.</p>
<hr>
<p>
<span id="output"></span>
</p>
<script src="./bootstrap.js"></script>
</body>
</html>
+170
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@@ -0,0 +1,170 @@
// Copyright 2020-2023 Nym Technologies SA
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
class WebWorkerClient {
worker = null;
constructor() {
this.worker = new Worker('./worker.js');
this.worker.onmessage = (ev) => {
if (ev.data && ev.data.kind) {
switch (ev.data.kind) {
case 'Ready':
const {selfAddress} = ev.data.args;
displaySenderAddress(selfAddress);
break;
case 'ReceiveMessage':
const {message, senderTag, isTestPacket } = ev.data.args;
displayReceived(message, senderTag, isTestPacket);
break;
case 'DisableMagicTestButton':
const magicButton = document.querySelector('#magic-button');
magicButton.setAttribute('disabled', "true")
break;
case 'DisplayTesterResults':
const {score, sentPackets, receivedPackets, receivedAcks, duplicatePackets, duplicateAcks} = ev.data.args;
const resultText = `Test score: ${score}. Sent ${sentPackets} packets. Received ${receivedPackets} packets and ${receivedAcks} acks back. We also got ${duplicatePackets} duplicate packets and ${duplicateAcks} duplicate acks.`
displayReceivedRawString(resultText)
break;
}
}
};
}
sendMessage = (message, recipient) => {
if (!this.worker) {
console.error('Could not send message because worker does not exist');
return;
}
this.worker.postMessage({
kind: 'SendMessage',
args: {
message, recipient,
},
});
};
sendTestPacket = (mixnodeIdentity) => {
if (!this.worker) {
console.error('Could not send message because worker does not exist');
return;
}
this.worker.postMessage({
kind: 'TestPacket',
args: {
mixnodeIdentity,
},
});
}
}
let client = null;
async function main() {
client = new WebWorkerClient();
const sendButton = document.querySelector('#send-button');
sendButton.onclick = function () {
sendMessageTo();
};
const magicButton = document.querySelector('#magic-button');
magicButton.onclick = function () {
sendTestPacket();
}
}
/**
* Create a Sphinx packet and send it to the mixnet through the gateway node.
*
* Message and recipient are taken from the values in the user interface.
*
*/
async function sendMessageTo() {
const message = document.getElementById('message').value;
const recipient = document.getElementById('recipient').value;
await client.sendMessage(message, recipient);
displaySend(message);
}
async function sendTestPacket() {
const mixnodeIdentity = document.getElementById('mixnode_identity').value;
await client.sendTestPacket(mixnodeIdentity)
displaySend(`sending test packets to: ${mixnodeIdentity}...`);
}
/**
* Display messages that have been sent up the websocket. Colours them blue.
*
* @param {string} message
*/
function displaySend(message) {
let timestamp = new Date().toISOString().substr(11, 12);
let sendDiv = document.createElement('div');
let paragraph = document.createElement('p');
paragraph.setAttribute('style', 'color: blue');
let paragraphContent = document.createTextNode(timestamp + ' sent >>> ' + message);
paragraph.appendChild(paragraphContent);
sendDiv.appendChild(paragraph);
document.getElementById('output').appendChild(sendDiv);
}
/**
* Display received text messages in the browser. Colour them green.
*
* @param {Uint8Array} raw
*/
function displayReceived(raw, sender_tag, isTestPacket) {
let content = new TextDecoder().decode(raw);
if (sender_tag !== undefined) {
console.log("this message also contained some surbs from", sender_tag)
}
if (isTestPacket) {
const decoded = JSON.parse(content)
content = `Received packet ${decoded.msg_id} / ${decoded.total_msgs} for node ${decoded.encoded_node_identity} (test: ${decoded.test_id})`
}
displayReceivedRawString(content)
}
function displayReceivedRawString(raw) {
let timestamp = new Date().toISOString().substr(11, 12);
let receivedDiv = document.createElement('div');
let paragraph = document.createElement('p');
paragraph.setAttribute('style', 'color: green');
let paragraphContent = document.createTextNode(timestamp + ' received >>> ' + raw);
paragraph.appendChild(paragraphContent);
receivedDiv.appendChild(paragraph);
document.getElementById('output').appendChild(receivedDiv);
}
/**
* Display the nymClient's sender address in the user interface
*
* @param {String} address
*/
function displaySenderAddress(address) {
document.getElementById('sender').value = address;
}
main();
@@ -0,0 +1,39 @@
{
"name": "create-wasm-app",
"version": "0.1.0",
"description": "create an app to consume rust-generated wasm packages",
"main": "index.js",
"bin": {
"create-wasm-app": ".bin/create-wasm-app.js"
},
"scripts": {
"build": "webpack --config webpack.config.js",
"start": "webpack-dev-server --port 8001"
},
"repository": {
"type": "git",
"url": "git+https://github.com/rustwasm/create-wasm-app.git"
},
"keywords": [
"webassembly",
"wasm",
"rust",
"webpack"
],
"author": "Dave Hrycyszyn <futurechimp@users.noreply.github.com>",
"license": "Apache-2.0",
"bugs": {
"url": "https://github.com/nymtech/nym/issues"
},
"homepage": "https://nymtech.net/docs",
"devDependencies": {
"copy-webpack-plugin": "^10.2.4",
"hello-wasm-pack": "^0.1.0",
"webpack": "^5.70.0",
"webpack-cli": "^4.9.2",
"webpack-dev-server": "^4.7.4"
},
"dependencies": {
"@nymproject/nym-client-wasm": "file:../pkg"
}
}
@@ -0,0 +1,33 @@
const CopyWebpackPlugin = require('copy-webpack-plugin');
const path = require('path');
module.exports = {
performance: {
hints: false,
maxEntrypointSize: 512000,
maxAssetSize: 512000
},
entry: {
bootstrap: './bootstrap.js',
worker: './worker.js',
},
output: {
path: path.resolve(__dirname, 'dist'),
filename: '[name].js',
},
// mode: 'development',
mode: 'production',
plugins: [
new CopyWebpackPlugin({
patterns: [
'index.html',
{
from: 'node_modules/@nymproject/nym-client-wasm/*.(js|wasm)',
to: '[name][ext]',
},
],
}),
],
experiments: { syncWebAssembly: true },
};
+294
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@@ -0,0 +1,294 @@
// Copyright 2020-2023 Nym Technologies SA
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
importScripts('nym_client_wasm.js');
console.log('Initializing worker');
// wasm_bindgen creates a global variable (with the exports attached) that is in scope after `importScripts`
const {
NymNodeTester,
WasmGateway,
WasmMixNode,
WasmNymTopology,
default_debug,
NymClientBuilder,
NymClient,
set_panic_hook,
Config,
GatewayEndpointConfig,
current_network_topology,
} = wasm_bindgen;
let client = null;
let tester = null;
function dummyTopology() {
const l1Mixnode = new WasmMixNode(
1,
'n1fzv4jc7fanl9s0qj02ge2ezk3kts545kjtek47',
'178.79.143.65',
1789,
'4Yr4qmEHd9sgsuQ83191FR2hD88RfsbMmB4tzhhZWriz',
'8ndjk5oZ6HxUZNScLJJ7hk39XtUqGexdKgW7hSX6kpWG',
1,
'1.10.0',
);
const l2Mixnode = new WasmMixNode(
2,
'n1z93z44vf8ssvdhujjvxcj4rd5e3lz0l60wdk70',
'109.74.197.180',
1789,
'7sVjiMrPYZrDWRujku9QLxgE8noT7NTgBAqizCsu7AoK',
'GepXwRnKZDd8x2nBWAajGGBVvF3mrpVMQBkgfrGuqRCN',
2,
'1.10.0',
);
const l3Mixnode = new WasmMixNode(
3,
'n1ptg680vnmef2cd8l0s9uyc4f0hgf3x8sed6w77',
'176.58.101.80',
1789,
'FoM5Mx9Pxk1g3zEqkS3APgtBeTtTo3M8k7Yu4bV6kK1R',
'DeYjrDC2AcQRVFshiKnbUo6bRvPyZ33QGYR2DLeFJ9qD',
3,
'1.10.0',
);
const gateway = new WasmGateway(
'n16evnn8glr0sham3matj8rg2s24m6x56ayk87ts',
'85.159.212.96',
1789,
9000,
'336yuXAeGEgedRfqTJZsG2YV7P13QH1bHv1SjCZYarc9',
'BtYjoWihiuFihGKQypmpSspbhmWDPxzqeTVSd8ciCpWL',
'1.10.1',
);
const mixnodes = new Map();
mixnodes.set(1, [l1Mixnode]);
mixnodes.set(2, [l2Mixnode]);
mixnodes.set(3, [l3Mixnode]);
const gateways = [gateway];
return new WasmNymTopology(mixnodes, gateways)
}
function printAndDisplayTestResult(result) {
result.log_details();
self.postMessage({
kind: 'DisplayTesterResults',
args: {
score: result.score(),
sentPackets: result.sent_packets,
receivedPackets: result.received_packets,
receivedAcks: result.received_acks,
duplicatePackets: result.duplicate_packets,
duplicateAcks: result.duplicate_acks,
},
});
}
function dummyGatewayConfig() {
return new GatewayEndpointConfig(
'336yuXAeGEgedRfqTJZsG2YV7P13QH1bHv1SjCZYarc9',
'n1rqqw8km7a0rvf8lr6k8dsdqvvkyn2mglj7xxfm',
'ws://85.159.212.96:9000',
)
}
async function testWithTester() {
const gatewayConfig = dummyGatewayConfig();
// A) construct with hardcoded topology
const topology = dummyTopology()
const nodeTester = await new NymNodeTester(gatewayConfig, topology);
// B) first get topology directly from nym-api
// const validator = 'https://qwerty-validator-api.qa.nymte.ch/api';
// const topology = await current_network_topology(validator)
// const nodeTester = await new NymNodeTester(gatewayConfig, topology);
//
// C) use nym-api in the constructor (note: it does no filtering for 'good' nodes on other layers)
// const validator = 'https://qwerty-validator-api.qa.nymte.ch/api';
// const nodeTester = await NymNodeTester.new_with_api(gatewayConfig, validator)
self.onmessage = async event => {
if (event.data && event.data.kind) {
switch (event.data.kind) {
case 'TestPacket': {
const {mixnodeIdentity} = event.data.args;
console.log("starting node test...");
let result = await nodeTester.test_node(mixnodeIdentity);
printAndDisplayTestResult(result)
}
}
}
};
}
async function testWithNymClient() {
const gatewayConfig = dummyGatewayConfig();
const topology = dummyTopology()
let received = 0
const onMessageHandler = (message) => {
received += 1;
self.postMessage({
kind: 'ReceiveMessage',
args: {
message,
senderTag: undefined,
isTestPacket: true,
},
});
// it's really up to the user to create proper callback here...
console.log(`received ${received} packets so far`)
};
console.log('Instantiating WASM client...');
let clientBuilder = NymClientBuilder.new_tester(gatewayConfig, topology, onMessageHandler)
console.log('Web worker creating WASM client...');
let local_client = await clientBuilder.start_client();
console.log('WASM client running!');
const selfAddress = local_client.self_address();
// set the global (I guess we don't have to anymore?)
client = local_client;
console.log(`Client address is ${selfAddress}`);
self.postMessage({
kind: 'Ready',
args: {
selfAddress,
},
});
// Set callback to handle messages passed to the worker.
self.onmessage = async event => {
console.log(event)
if (event.data && event.data.kind) {
switch (event.data.kind) {
case 'SendMessage': {
const {message, recipient} = event.data.args;
let uint8Array = new TextEncoder().encode(message);
await client.send_regular_message(uint8Array, recipient);
break;
}
case 'TestPacket': {
const {mixnodeIdentity} = event.data.args;
const req = await client.try_construct_test_packet_request(mixnodeIdentity);
await client.change_hardcoded_topology(req.injectable_topology());
await client.try_send_test_packets(req);
break;
}
}
}
};
}
async function normalNymClientUsage() {
self.postMessage({kind: 'DisableMagicTestButton'});
// only really useful if you want to adjust some settings like traffic rate
// (if not needed you can just pass a null)
const debug = default_debug();
debug.disable_main_poisson_packet_distribution = true;
debug.disable_loop_cover_traffic_stream = true;
debug.use_extended_packet_size = false;
// debug.average_packet_delay_ms = BigInt(10);
// debug.average_ack_delay_ms = BigInt(10);
// debug.ack_wait_addition_ms = BigInt(3000);
// debug.ack_wait_multiplier = 10;
debug.topology_refresh_rate_ms = BigInt(60000)
const gatewayConfig = dummyGatewayConfig();
const validator = 'https://qwerty-validator-api.qa.nymte.ch/api';
const config = new Config('my-awesome-wasm-client', validator, gatewayConfig, debug);
const onMessageHandler = (message) => {
console.log(message);
self.postMessage({
kind: 'ReceiveMessage',
args: {
message,
},
});
};
console.log('Instantiating WASM client...');
let localClient = await new NymClient(config, onMessageHandler)
console.log('WASM client running!');
const selfAddress = localClient.self_address();
// set the global (I guess we don't have to anymore?)
client = localClient;
console.log(`Client address is ${selfAddress}`);
self.postMessage({
kind: 'Ready',
args: {
selfAddress,
},
});
// Set callback to handle messages passed to the worker.
self.onmessage = async event => {
console.log(event)
if (event.data && event.data.kind) {
switch (event.data.kind) {
case 'SendMessage': {
const {message, recipient} = event.data.args;
let uint8Array = new TextEncoder().encode(message);
await client.send_regular_message(uint8Array, recipient);
break;
}
}
}
};
}
async function main() {
// load WASM package
await wasm_bindgen('nym_client_wasm_bg.wasm');
console.log('Loaded WASM');
// sets up better stack traces in case of in-rust panics
set_panic_hook();
// run test on simplified and dedicated tester:
await testWithTester()
// hook-up the whole client for testing
// await testWithNymClient()
// 'Normal' client setup (to send 'normal' messages)
// await normalNymClientUsage()
}
// Let's get started!
main();
File diff suppressed because it is too large Load Diff
+13 -4
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@@ -25,7 +25,7 @@ pub struct Config {
/// ID specifies the human readable ID of this particular client.
pub(crate) id: String,
pub(crate) nym_api_url: Url,
pub(crate) nym_api_url: Option<Url>,
pub(crate) disabled_credentials_mode: bool,
@@ -46,9 +46,11 @@ impl Config {
) -> Self {
Config {
id,
nym_api_url: validator_server
.parse()
.expect("provided url was malformed"),
nym_api_url: Some(
validator_server
.parse()
.expect("provided url was malformed"),
),
disabled_credentials_mode: true,
gateway_endpoint,
debug: debug.map(Into::into).unwrap_or_default(),
@@ -229,6 +231,11 @@ pub struct Topology {
/// path. This timeout determines waiting period until it is decided that the packet
/// did not reach its destination.
pub topology_resolution_timeout_ms: u64,
/// Specifies whether the client should not refresh the network topology after obtaining
/// the first valid instance.
/// Supersedes `topology_refresh_rate_ms`.
pub disable_refreshing: bool,
}
impl From<Topology> for ConfigTopology {
@@ -238,6 +245,7 @@ impl From<Topology> for ConfigTopology {
topology_resolution_timeout: Duration::from_millis(
topology.topology_resolution_timeout_ms,
),
disable_refreshing: topology.disable_refreshing,
}
}
}
@@ -247,6 +255,7 @@ impl From<ConfigTopology> for Topology {
Topology {
topology_refresh_rate_ms: topology.topology_refresh_rate.as_millis() as u64,
topology_resolution_timeout_ms: topology.topology_resolution_timeout.as_millis() as u64,
disable_refreshing: topology.disable_refreshing,
}
}
}
+146 -7
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@@ -1,16 +1,42 @@
// Copyright 2022 - Nym Technologies SA <contact@nymtech.net>
// Copyright 2022-2023 - Nym Technologies SA <contact@nymtech.net>
// SPDX-License-Identifier: Apache-2.0
use crate::error::WasmClientError;
use crate::tester::helpers::WasmTestMessageExt;
use crate::tester::{NodeTestMessage, DEFAULT_TEST_PACKETS};
use crate::topology::WasmNymTopology;
use js_sys::Promise;
use nym_client_core::client::base_client::ClientInput;
use nym_client_core::client::base_client::{ClientInput, ClientState};
use nym_client_core::client::inbound_messages::InputMessage;
use nym_topology::{MixLayer, NymTopology};
use std::sync::Arc;
use wasm_bindgen::prelude::*;
use wasm_bindgen::JsValue;
use wasm_bindgen_futures::future_to_promise;
use wasm_utils::{console_log, js_error, simple_js_error};
#[wasm_bindgen]
pub struct NymClientTestRequest {
// serialized NodeTestMessage
pub(crate) test_msgs: Vec<Vec<u8>>,
// specially constructed network topology that only contains the target
// node on the tested layer
pub(crate) testable_topology: NymTopology,
}
#[wasm_bindgen]
impl NymClientTestRequest {
pub fn injectable_topology(&self) -> WasmNymTopology {
self.testable_topology.clone().into()
}
}
// defining helper trait as we could directly call the method on the wrapper
pub(crate) trait InputSender {
fn send_message(&self, message: InputMessage) -> Promise;
fn send_messages(&self, messages: Vec<InputMessage>) -> Promise;
}
impl InputSender for Arc<ClientInput> {
@@ -19,12 +45,125 @@ impl InputSender for Arc<ClientInput> {
future_to_promise(async move {
match this.input_sender.send(message).await {
Ok(_) => Ok(JsValue::null()),
Err(_) => {
let js_error =
js_sys::Error::new("InputMessageReceiver has stopped receiving!");
Err(JsValue::from(js_error))
}
Err(_) => Err(simple_js_error(
"InputMessageReceiver has stopped receiving!",
)),
}
})
}
fn send_messages(&self, messages: Vec<InputMessage>) -> Promise {
let this = Arc::clone(self);
future_to_promise(async move {
for message in messages {
if this.input_sender.send(message).await.is_err() {
return Err(simple_js_error(
"InputMessageReceiver has stopped receiving!",
));
}
}
Ok(JsValue::null())
})
}
}
pub(crate) trait WasmTopologyExt {
/// Changes the current network topology to the provided value.
fn change_hardcoded_topology(&self, topology: WasmNymTopology) -> Promise;
/// Returns the current network topology.
fn current_topology(&self) -> Promise;
/// Checks whether the provided node exists in the known network topology and if so, returns its layer.
fn check_for_mixnode_existence(&self, mixnode_identity: String) -> Promise;
/// Creates a `NymClientTestRequest` with a variant of `this` topology where the target node is the only one on its layer.
fn mix_test_request(
&self,
test_id: u32,
mixnode_identity: String,
num_test_packets: Option<u32>,
) -> Promise;
}
impl WasmTopologyExt for Arc<ClientState> {
fn change_hardcoded_topology(&self, topology: WasmNymTopology) -> Promise {
let this = Arc::clone(self);
future_to_promise(async move {
let nym_topology: NymTopology = topology.into();
console_log!("changing topology to {nym_topology:?}");
this.topology_accessor
.manually_change_topology(nym_topology)
.await;
Ok(JsValue::null())
})
}
fn current_topology(&self) -> Promise {
let this = Arc::clone(self);
future_to_promise(async move {
match this.topology_accessor.current_topology().await {
Some(topology) => Ok(JsValue::from(WasmNymTopology::from(topology))),
None => Err(WasmClientError::UnavailableNetworkTopology.into()),
}
})
}
/// Checks whether the target mixnode exists in the known network topology and returns its layer.
fn check_for_mixnode_existence(&self, mixnode_identity: String) -> Promise {
let this = Arc::clone(self);
future_to_promise(async move {
let Some(current_topology) = this.topology_accessor.current_topology().await else {
return Err(WasmClientError::UnavailableNetworkTopology.into())
};
match current_topology.find_mix_by_identity(&mixnode_identity) {
None => Err(WasmClientError::NonExistentMixnode { mixnode_identity }.into()),
Some(node) => Ok(JsValue::from(MixLayer::from(node.layer))),
}
})
}
fn mix_test_request(
&self,
test_id: u32,
mixnode_identity: String,
num_test_packets: Option<u32>,
) -> Promise {
let num_test_packets = num_test_packets.unwrap_or(DEFAULT_TEST_PACKETS);
let this = Arc::clone(self);
future_to_promise(async move {
let Some(current_topology) = this.topology_accessor.current_topology().await else {
return Err(WasmClientError::UnavailableNetworkTopology.into())
};
let Some(mix) = current_topology.find_mix_by_identity(&mixnode_identity) else {
return Err(WasmClientError::NonExistentMixnode { mixnode_identity }.into());
};
let mut test_msgs = Vec::with_capacity(num_test_packets as usize);
for i in 1..=num_test_packets {
let msg = NodeTestMessage::new_mix(
mix,
i,
num_test_packets,
WasmTestMessageExt::new(test_id),
);
let serialized = match msg.as_bytes() {
Ok(bytes) => bytes,
Err(err) => return Err(js_error!("failed to serialize test message: {err}")),
};
test_msgs.push(serialized);
}
let mut updated = current_topology.clone();
updated.set_mixes_in_layer(mix.layer.into(), vec![mix.to_owned()]);
Ok(JsValue::from(NymClientTestRequest {
test_msgs,
testable_topology: updated,
}))
})
}
}
+178 -97
View File
@@ -1,27 +1,36 @@
// Copyright 2021-2022 - Nym Technologies SA <contact@nymtech.net>
// Copyright 2021-2023 - Nym Technologies SA <contact@nymtech.net>
// SPDX-License-Identifier: Apache-2.0
use self::config::Config;
use crate::client::helpers::InputSender;
use crate::client::helpers::{InputSender, NymClientTestRequest, WasmTopologyExt};
use crate::client::response_pusher::ResponsePusher;
use crate::error::WasmClientError;
use crate::helpers::{
parse_recipient, parse_sender_tag, setup_new_key_manager, setup_reply_surb_storage_backend,
};
use crate::topology::WasmNymTopology;
use js_sys::Promise;
use nym_bandwidth_controller::wasm_mockups::{Client as FakeClient, DirectSigningNyxdClient};
use nym_bandwidth_controller::BandwidthController;
use nym_client_core::client::base_client::{
BaseClientBuilder, ClientInput, ClientOutput, CredentialsToggle,
BaseClientBuilder, ClientInput, ClientOutput, ClientState, CredentialsToggle,
};
use nym_client_core::client::replies::reply_storage::browser_backend;
use nym_client_core::client::{inbound_messages::InputMessage, key_manager::KeyManager};
use nym_client_core::config::{
CoverTraffic, DebugConfig, GatewayEndpointConfig, Topology, Traffic,
};
use nym_credential_storage::ephemeral_storage::EphemeralStorage;
use nym_sphinx::addressing::clients::Recipient;
use nym_sphinx::anonymous_replies::requests::AnonymousSenderTag;
use nym_task::connections::TransmissionLane;
use nym_task::TaskManager;
use nym_topology::provider_trait::{HardcodedTopologyProvider, TopologyProvider};
use nym_topology::NymTopology;
use rand::rngs::OsRng;
use rand::RngCore;
use std::sync::Arc;
use wasm_bindgen::prelude::*;
use wasm_bindgen_futures::future_to_promise;
use wasm_utils::{console_error, console_log};
use wasm_utils::{check_promise_result, console_log, PromisableResult};
pub mod config;
mod helpers;
@@ -31,6 +40,11 @@ mod response_pusher;
pub struct NymClient {
self_address: String,
client_input: Arc<ClientInput>,
client_state: Arc<ClientState>,
// keep track of the "old" topology for the purposes of node tester
// so that it could be restored after the check is done
_full_topology: Option<NymTopology>,
// even though we don't use graceful shutdowns, other components rely on existence of this struct
// and if it's dropped, everything will start going offline
@@ -40,6 +54,7 @@ pub struct NymClient {
#[wasm_bindgen]
pub struct NymClientBuilder {
config: Config,
custom_topology: Option<NymTopology>,
/// KeyManager object containing smart pointers to all relevant keys used by the client.
key_manager: KeyManager,
@@ -60,118 +75,190 @@ impl NymClientBuilder {
pub fn new(config: Config, on_message: js_sys::Function) -> Self {
//, key_manager: Option<KeyManager>) {
NymClientBuilder {
reply_surb_storage_backend: Self::setup_reply_surb_storage_backend(&config),
reply_surb_storage_backend: setup_reply_surb_storage_backend(config.debug.reply_surbs),
config,
key_manager: Self::setup_key_manager(),
custom_topology: None,
key_manager: setup_new_key_manager(),
on_message,
bandwidth_controller: None,
disabled_credentials: true,
}
}
// TODO: once we make keys persistent, we'll require some kind of `init` method to generate
// a prior shared keypair between the client and the gateway
// no cover traffic
// no poisson delay
// hardcoded topology
// NOTE: you most likely want to use `[NymNodeTester]` instead.
pub fn new_tester(
gateway_config: GatewayEndpointConfig,
topology: WasmNymTopology,
on_message: js_sys::Function,
) -> Self {
if !topology.ensure_contains(&gateway_config) {
panic!("the specified topology does not contain the gateway used by the client")
}
// perhaps this should be public?
fn setup_key_manager() -> KeyManager {
let mut rng = OsRng;
// for time being generate new keys each time...
console_log!("generated new set of keys");
KeyManager::new(&mut rng)
}
let full_config = Config {
id: "ephemeral-id".to_string(),
nym_api_url: None,
disabled_credentials_mode: true,
gateway_endpoint: gateway_config,
debug: DebugConfig {
traffic: Traffic {
disable_main_poisson_packet_distribution: true,
..Default::default()
},
cover_traffic: CoverTraffic {
disable_loop_cover_traffic_stream: true,
..Default::default()
},
topology: Topology {
disable_refreshing: true,
..Default::default()
},
..Default::default()
},
};
// don't get too excited about the name, under the hood it's just a big fat placeholder
// with no persistence
fn setup_reply_surb_storage_backend(config: &Config) -> browser_backend::Backend {
browser_backend::Backend::new(
config
.debug
.reply_surbs
.minimum_reply_surb_storage_threshold,
config
.debug
.reply_surbs
.maximum_reply_surb_storage_threshold,
)
NymClientBuilder {
reply_surb_storage_backend: setup_reply_surb_storage_backend(
full_config.debug.reply_surbs,
),
config: full_config,
custom_topology: Some(topology.into()),
// TODO: once we make keys persistent, we'll require some kind of `init` method to generate
// a prior shared keypair between the client and the gateway
key_manager: setup_new_key_manager(),
on_message,
bandwidth_controller: None,
disabled_credentials: true,
}
}
fn start_reconstructed_pusher(client_output: ClientOutput, on_message: js_sys::Function) {
ResponsePusher::new(client_output, on_message).start()
}
pub async fn start_client(self) -> Promise {
future_to_promise(async move {
console_log!("Starting the wasm client");
fn topology_provider(&mut self) -> Option<Box<dyn TopologyProvider>> {
if let Some(hardcoded_topology) = self.custom_topology.take() {
Some(Box::new(HardcodedTopologyProvider::new(hardcoded_topology)))
} else {
None
}
}
let disabled_credentials = if self.disabled_credentials {
CredentialsToggle::Disabled
} else {
CredentialsToggle::Enabled
};
async fn start_client_async(mut self) -> Result<NymClient, WasmClientError> {
console_log!("Starting the wasm client");
let base_builder = BaseClientBuilder::new(
&self.config.gateway_endpoint,
&self.config.debug,
self.key_manager,
self.bandwidth_controller,
self.reply_surb_storage_backend,
disabled_credentials,
vec![self.config.nym_api_url.clone()],
);
let maybe_topology_provider = self.topology_provider();
let self_address = base_builder.as_mix_recipient().to_string();
let mut started_client = match base_builder.start_base().await {
Ok(base_client) => base_client,
Err(err) => {
let error_msg = format!("failed to start the base client components - {err}");
console_error!("{}", error_msg);
let js_error = js_sys::Error::new(&error_msg);
return Err(JsValue::from(js_error));
}
};
let disabled_credentials = if self.disabled_credentials {
CredentialsToggle::Disabled
} else {
CredentialsToggle::Enabled
};
let client_input = started_client.client_input.register_producer();
let client_output = started_client.client_output.register_consumer();
let nym_api_endpoints = match self.config.nym_api_url {
Some(endpoint) => vec![endpoint],
None => Vec::new(),
};
let mut base_builder = BaseClientBuilder::new(
&self.config.gateway_endpoint,
&self.config.debug,
self.key_manager,
self.bandwidth_controller,
self.reply_surb_storage_backend,
disabled_credentials,
nym_api_endpoints,
);
if let Some(topology_provider) = maybe_topology_provider {
base_builder = base_builder.with_topology_provider(topology_provider);
}
Self::start_reconstructed_pusher(client_output, self.on_message);
let self_address = base_builder.as_mix_recipient().to_string();
let mut started_client = base_builder.start_base().await?;
Ok(JsValue::from(NymClient {
self_address,
client_input: Arc::new(client_input),
_task_manager: started_client.task_manager,
}))
let client_input = started_client.client_input.register_producer();
let client_output = started_client.client_output.register_consumer();
Self::start_reconstructed_pusher(client_output, self.on_message);
Ok(NymClient {
self_address,
client_input: Arc::new(client_input),
client_state: Arc::new(started_client.client_state),
_full_topology: None,
_task_manager: started_client.task_manager,
})
}
pub fn start_client(self) -> Promise {
future_to_promise(async move { self.start_client_async().await.into_promise_result() })
}
}
#[wasm_bindgen]
impl NymClient {
async fn _new(
config: Config,
on_message: js_sys::Function,
) -> Result<NymClient, WasmClientError> {
NymClientBuilder::new(config, on_message)
.start_client_async()
.await
}
#[wasm_bindgen(constructor)]
#[allow(clippy::new_ret_no_self)]
pub fn new(config: Config, on_message: js_sys::Function) -> Promise {
future_to_promise(async move { Self::_new(config, on_message).await.into_promise_result() })
}
pub fn self_address(&self) -> String {
self.self_address.clone()
}
fn parse_recipient(recipient: &str) -> Result<Recipient, JsValue> {
match Recipient::try_from_base58_string(recipient) {
Ok(recipient) => Ok(recipient),
Err(err) => {
let error_msg = format!("{recipient} is not a valid Nym network recipient - {err}");
console_error!("{}", error_msg);
let js_error = js_sys::Error::new(&error_msg);
Err(JsValue::from(js_error))
}
}
pub fn try_construct_test_packet_request(
&self,
mixnode_identity: String,
num_test_packets: Option<u32>,
) -> Promise {
// TODO: improve the source of rng (i.e. don't make it ephemeral...)
let mut ephemeral_rng = OsRng;
let test_id = ephemeral_rng.next_u32();
self.client_state
.mix_test_request(test_id, mixnode_identity, num_test_packets)
}
fn parse_sender_tag(tag: &str) -> Result<AnonymousSenderTag, JsValue> {
match AnonymousSenderTag::try_from_base58_string(tag) {
Ok(tag) => Ok(tag),
Err(err) => {
let error_msg = format!("{tag} is not a valid Nym AnonymousSenderTag - {err}");
console_error!("{}", error_msg);
let js_error = js_sys::Error::new(&error_msg);
Err(JsValue::from(js_error))
}
}
pub fn change_hardcoded_topology(&self, topology: WasmNymTopology) -> Promise {
self.client_state.change_hardcoded_topology(topology)
}
pub fn current_network_topology(&self) -> Promise {
self.client_state.current_topology()
}
/// Sends a test packet through the current network topology.
/// It's the responsibility of the caller to ensure the correct topology has been injected and
/// correct onmessage handlers have been setup.
pub fn try_send_test_packets(&mut self, request: NymClientTestRequest) -> Promise {
// TOOD: use the premade packets instead
console_log!(
"Attempting to send {} test packets",
request.test_msgs.len()
);
// our address MUST BE valid
let recipient = parse_recipient(&self.self_address()).unwrap();
let lane = TransmissionLane::General;
let input_msgs = request
.test_msgs
.into_iter()
.map(|p| InputMessage::new_regular(recipient, p, lane))
.collect();
self.client_input.send_messages(input_msgs)
}
/// The simplest message variant where no additional information is attached.
@@ -184,10 +271,8 @@ impl NymClient {
message.len() as f64 / 1024.0
);
let recipient = match Self::parse_recipient(&recipient) {
Ok(recipient) => recipient,
Err(err) => return Promise::reject(&err),
};
let recipient = check_promise_result!(parse_recipient(&recipient));
let lane = TransmissionLane::General;
let input_msg = InputMessage::new_regular(recipient, message, lane);
@@ -213,10 +298,8 @@ impl NymClient {
message.len() as f64 / 1024.0
);
let recipient = match Self::parse_recipient(&recipient) {
Ok(recipient) => recipient,
Err(err) => return Promise::reject(&err),
};
let recipient = check_promise_result!(parse_recipient(&recipient));
let lane = TransmissionLane::General;
let input_msg = InputMessage::new_anonymous(recipient, message, reply_surbs, lane);
@@ -233,10 +316,8 @@ impl NymClient {
message.len() as f64 / 1024.0
);
let sender_tag = match Self::parse_sender_tag(&recipient_tag) {
Ok(recipient) => recipient,
Err(err) => return Promise::reject(&err),
};
let sender_tag = check_promise_result!(parse_sender_tag(&recipient_tag));
let lane = TransmissionLane::General;
let input_msg = InputMessage::new_reply(sender_tag, message, lane);
+99
View File
@@ -0,0 +1,99 @@
// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
// SPDX-License-Identifier: Apache-2.0
use crate::topology::WasmTopologyError;
use js_sys::Promise;
use nym_client_core::error::ClientCoreError;
use nym_crypto::asymmetric::identity::Ed25519RecoveryError;
use nym_gateway_client::error::GatewayClientError;
use nym_node_tester_utils::error::NetworkTestingError;
use nym_sphinx::addressing::clients::RecipientFormattingError;
use nym_sphinx::anonymous_replies::requests::InvalidAnonymousSenderTagRepresentation;
use nym_validator_client::ValidatorClientError;
use thiserror::Error;
use wasm_bindgen::JsValue;
use wasm_utils::simple_js_error;
// might as well start using well-defined error enum...
#[derive(Debug, Error)]
pub enum WasmClientError {
#[error(
"A node test is already in progress. Wait for it to finish before starting another one."
)]
TestInProgress,
#[error("experienced an issue with internal client components: {source}")]
BaseClientError {
#[from]
source: ClientCoreError,
},
#[error("The provided gateway identity is invalid: {source}")]
InvalidGatewayIdentity { source: Ed25519RecoveryError },
#[error("Gateway communication failure: {source}")]
GatewayClientError {
#[from]
source: GatewayClientError,
},
#[error("failed to query nym api: {source}")]
NymApiError {
#[from]
source: ValidatorClientError,
},
#[error("The provided topology was invalid: {source}")]
WasmTopologyError {
#[from]
source: WasmTopologyError,
},
#[error("failed to test the node: {source}")]
NodeTestingFailure {
#[from]
source: NetworkTestingError,
},
#[error("{raw} is not a valid url: {source}")]
MalformedUrl {
raw: String,
source: url::ParseError,
},
#[error("Network topology is currently unavailable")]
UnavailableNetworkTopology,
#[error("Mixnode {mixnode_identity} is not present in the current network topology")]
NonExistentMixnode { mixnode_identity: String },
#[error("{raw} is not a valid Nym network recipient: {source}")]
MalformedRecipient {
raw: String,
source: RecipientFormattingError,
},
#[error("{raw} is not a valid Nym AnonymousSenderTag: {source}")]
MalformedSenderTag {
raw: String,
source: InvalidAnonymousSenderTagRepresentation,
},
}
impl WasmClientError {
pub fn into_rejected_promise(self) -> Promise {
self.into()
}
}
impl From<WasmClientError> for JsValue {
fn from(value: WasmClientError) -> Self {
simple_js_error(value.to_string())
}
}
impl From<WasmClientError> for Promise {
fn from(value: WasmClientError) -> Self {
Promise::reject(&value.into())
}
}
+82
View File
@@ -0,0 +1,82 @@
// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
// SPDX-License-Identifier: Apache-2.0
use crate::error::WasmClientError;
use crate::topology::WasmNymTopology;
use js_sys::Promise;
use nym_client_core::client::key_manager::KeyManager;
use nym_client_core::client::replies::reply_storage::browser_backend;
use nym_client_core::config;
use nym_sphinx::addressing::clients::Recipient;
use nym_sphinx::anonymous_replies::requests::AnonymousSenderTag;
use nym_topology::NymTopology;
use nym_validator_client::NymApiClient;
use rand::rngs::OsRng;
use url::Url;
use wasm_bindgen::prelude::wasm_bindgen;
use wasm_bindgen_futures::future_to_promise;
use wasm_utils::{console_log, PromisableResult};
pub(crate) fn setup_new_key_manager() -> KeyManager {
let mut rng = OsRng;
console_log!("generated new set of keys");
KeyManager::new(&mut rng)
}
// don't get too excited about the name, under the hood it's just a big fat placeholder
// with no persistence
pub(crate) fn setup_reply_surb_storage_backend(
config: config::ReplySurbs,
) -> browser_backend::Backend {
browser_backend::Backend::new(
config.minimum_reply_surb_storage_threshold,
config.maximum_reply_surb_storage_threshold,
)
}
pub(crate) fn parse_recipient(recipient: &str) -> Result<Recipient, WasmClientError> {
Recipient::try_from_base58_string(recipient).map_err(|source| {
WasmClientError::MalformedRecipient {
raw: recipient.to_string(),
source,
}
})
}
pub(crate) fn parse_sender_tag(tag: &str) -> Result<AnonymousSenderTag, WasmClientError> {
AnonymousSenderTag::try_from_base58_string(tag).map_err(|source| {
WasmClientError::MalformedSenderTag {
raw: tag.to_string(),
source,
}
})
}
pub(crate) async fn current_network_topology_async(
nym_api_url: String,
) -> Result<WasmNymTopology, WasmClientError> {
let url: Url = match nym_api_url.parse() {
Ok(url) => url,
Err(source) => {
return Err(WasmClientError::MalformedUrl {
raw: nym_api_url,
source,
})
}
};
let api_client = NymApiClient::new(url);
let mixnodes = api_client.get_cached_active_mixnodes().await?;
let gateways = api_client.get_cached_gateways().await?;
Ok(NymTopology::from_detailed(mixnodes, gateways).into())
}
#[wasm_bindgen]
pub fn current_network_topology(nym_api_url: String) -> Promise {
future_to_promise(async move {
current_network_topology_async(nym_api_url)
.await
.into_promise_result()
})
}
+8
View File
@@ -7,11 +7,19 @@ use wasm_bindgen::prelude::*;
mod client;
#[cfg(target_arch = "wasm32")]
pub mod encoded_payload_helper;
pub mod error;
#[cfg(target_arch = "wasm32")]
pub mod gateway_selector;
#[cfg(target_arch = "wasm32")]
pub mod tester;
#[cfg(target_arch = "wasm32")]
pub mod topology;
#[cfg(target_arch = "wasm32")]
pub mod validation;
#[cfg(target_arch = "wasm32")]
mod helpers;
#[wasm_bindgen]
pub fn set_panic_hook() {
// When the `console_error_panic_hook` feature is enabled, we can call the
@@ -0,0 +1,117 @@
// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
// SPDX-License-Identifier: Apache-2.0
use crate::tester::helpers::NodeTestResult;
use crate::tester::NodeTestMessage;
use futures::StreamExt;
use nym_node_tester_utils::receiver::{Received, ReceivedReceiver};
use nym_sphinx::chunking::fragment::FragmentIdentifier;
use std::collections::HashSet;
use std::time::Duration;
use tokio::sync::MutexGuard as AsyncMutexGuard;
use wasm_utils::{console_error, console_log, console_warn};
pub(crate) struct EphemeralTestReceiver<'a> {
sent_packets: u32,
expected_acks: HashSet<FragmentIdentifier>,
received_valid_messages: HashSet<u32>,
received_valid_acks: HashSet<FragmentIdentifier>,
duplicate_packets: u32,
duplicate_acks: u32,
timeout_duration: Duration,
receiver_permit: AsyncMutexGuard<'a, ReceivedReceiver>,
}
impl<'a> EphemeralTestReceiver<'a> {
pub(crate) fn finish(self) -> NodeTestResult {
NodeTestResult {
sent_packets: self.sent_packets,
received_packets: self.received_valid_messages.len() as u32,
received_acks: self.received_valid_acks.len() as u32,
duplicate_packets: self.duplicate_packets,
duplicate_acks: self.duplicate_acks,
}
}
pub(crate) fn new(
sent_packets: u32,
expected_acks: HashSet<FragmentIdentifier>,
receiver_permit: AsyncMutexGuard<'a, ReceivedReceiver>,
timeout: Duration,
) -> Self {
EphemeralTestReceiver {
sent_packets,
expected_acks,
received_valid_messages: Default::default(),
received_valid_acks: Default::default(),
duplicate_packets: 0,
duplicate_acks: 0,
timeout_duration: timeout,
receiver_permit,
}
}
fn on_next_received_packet(&mut self, packet: Option<Received>) -> bool {
let Some(received_packet) = packet else {
// can't do anything more...
console_error!("packet receiver has stopped processing results!");
return true
};
match received_packet {
Received::Message(msg) => match NodeTestMessage::try_recover(msg) {
Ok(test_msg) => {
if !self.received_valid_messages.insert(test_msg.msg_id) {
self.duplicate_packets += 1;
}
}
Err(err) => {
console_warn!("failed to recover test message from received packet: {err}")
}
},
Received::Ack(frag_id) => {
if self.expected_acks.contains(&frag_id) {
if !self.received_valid_acks.insert(frag_id) {
self.duplicate_acks += 1
}
} else {
console_warn!("received an ack that was not part of the test! (id: {frag_id})")
}
}
}
if self.received_all() {
console_log!("already received all the packets! finishing the test...");
true
} else {
false
}
}
fn received_all(&self) -> bool {
self.received_valid_acks.len() == self.received_valid_messages.len()
&& self.received_valid_acks.len() == self.sent_packets as usize
}
pub(crate) async fn perform_test(mut self) -> NodeTestResult {
let mut timeout_fut = wasm_timer::Delay::new(self.timeout_duration);
loop {
tokio::select! {
_ = &mut timeout_fut => {
console_warn!("reached test timeout before receiving all packets.");
break
}
received_packet = self.receiver_permit.next() => {
let is_done = self.on_next_received_packet(received_packet);
if is_done {
break
}
}
}
}
self.finish()
}
}
+108
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@@ -0,0 +1,108 @@
// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
// SPDX-License-Identifier: Apache-2.0
// due to expansion of #[wasm_bindgen] macro on NodeTestResult
#![allow(clippy::drop_non_drop)]
use nym_node_tester_utils::receiver::{Received, ReceivedReceiver};
use serde::{Deserialize, Serialize};
use std::fmt::{Display, Formatter};
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::Arc;
use tokio::sync::{Mutex as AsyncMutex, MutexGuard as AsyncMutexGuard};
use wasm_bindgen::prelude::*;
use wasm_utils::{console_log, console_warn};
#[derive(Clone)]
pub(super) struct ReceivedReceiverWrapper(Arc<AsyncMutex<ReceivedReceiver>>);
impl ReceivedReceiverWrapper {
pub(super) fn new(inner: ReceivedReceiver) -> Self {
ReceivedReceiverWrapper(Arc::new(AsyncMutex::new(inner)))
}
pub(super) async fn clear_received_channel(&self) {
let mut lost_msgs = 0;
let mut lost_acks = 0;
let mut permit = self.0.lock().await;
while let Ok(Some(received)) = permit.try_next() {
match received {
Received::Message(_) => lost_msgs += 1,
Received::Ack(_) => lost_acks += 1,
}
}
if lost_msgs > 0 || lost_acks > 0 {
console_warn!("while preparing for the test run, we cleared {lost_msgs} messages and {lost_acks} acks that were received in the meantime.")
}
}
pub(super) async fn lock(&self) -> AsyncMutexGuard<'_, ReceivedReceiver> {
self.0.lock().await
}
}
#[derive(Serialize, Deserialize, Copy, Clone)]
pub struct WasmTestMessageExt {
pub test_id: u32,
}
impl WasmTestMessageExt {
pub fn new(test_id: u32) -> Self {
WasmTestMessageExt { test_id }
}
}
// TODO: maybe put it in the tester utils
#[wasm_bindgen]
pub struct NodeTestResult {
pub sent_packets: u32,
pub received_packets: u32,
pub received_acks: u32,
pub duplicate_packets: u32,
pub duplicate_acks: u32,
}
impl Display for NodeTestResult {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
writeln!(f, "Test results: ")?;
writeln!(f, "Total score: {:.2}%", self.score())?;
writeln!(f, "Sent packets: {}", self.sent_packets)?;
writeln!(f, "Received (valid) packets: {}", self.received_packets)?;
writeln!(f, "Received (valid) acks: {}", self.received_acks)?;
writeln!(f, "Received duplicate packets: {}", self.duplicate_packets)?;
write!(f, "Received duplicate acks: {}", self.duplicate_acks)
}
}
#[wasm_bindgen]
impl NodeTestResult {
pub fn log_details(&self) {
console_log!("{}", self)
}
pub fn score(&self) -> f32 {
let expected = self.sent_packets * 2;
let actual = (self.received_packets + self.received_acks)
.saturating_sub(self.duplicate_packets + self.duplicate_acks);
actual as f32 / expected as f32 * 100.
}
}
pub(crate) struct TestMarker {
value: Arc<AtomicBool>,
}
impl TestMarker {
pub fn new(value: Arc<AtomicBool>) -> Self {
Self { value }
}
}
impl Drop for TestMarker {
// make sure to clear the test flag when the marker is dropped
fn drop(&mut self) {
self.value.store(false, Ordering::SeqCst)
}
}
+316
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@@ -0,0 +1,316 @@
// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
// SPDX-License-Identifier: Apache-2.0
use crate::error::WasmClientError;
use crate::helpers::{current_network_topology_async, setup_new_key_manager};
use crate::tester::ephemeral_receiver::EphemeralTestReceiver;
use crate::tester::helpers::{
NodeTestResult, ReceivedReceiverWrapper, TestMarker, WasmTestMessageExt,
};
use crate::topology::WasmNymTopology;
use futures::channel::mpsc;
use js_sys::Promise;
use nym_bandwidth_controller::wasm_mockups::{Client as FakeClient, DirectSigningNyxdClient};
use nym_bandwidth_controller::BandwidthController;
use nym_client_core::client::key_manager::KeyManager;
use nym_client_core::config::GatewayEndpointConfig;
use nym_credential_storage::ephemeral_storage::EphemeralStorage;
use nym_crypto::asymmetric::identity;
use nym_gateway_client::GatewayClient;
use nym_node_tester_utils::receiver::SimpleMessageReceiver;
use nym_node_tester_utils::{NodeTester, TestMessage};
use nym_sphinx::addressing::clients::Recipient;
use nym_sphinx::addressing::nodes::NodeIdentity;
use nym_sphinx::params::PacketSize;
use nym_sphinx::preparer::PreparedFragment;
use nym_task::TaskManager;
use nym_topology::NymTopology;
use rand::rngs::OsRng;
use std::collections::HashSet;
use std::sync::atomic::{AtomicBool, AtomicU32, Ordering};
use std::sync::{Arc, Mutex as SyncMutex};
use std::time::Duration;
use tokio::sync::Mutex as AsyncMutex;
use wasm_bindgen::prelude::*;
use wasm_bindgen_futures::future_to_promise;
use wasm_utils::{check_promise_result, console_log, console_warn, PromisableResult};
mod ephemeral_receiver;
pub(crate) mod helpers;
pub type NodeTestMessage = TestMessage<WasmTestMessageExt>;
type LockedGatewayClient =
Arc<AsyncMutex<GatewayClient<FakeClient<DirectSigningNyxdClient>, EphemeralStorage>>>;
pub(crate) const DEFAULT_TEST_TIMEOUT: Duration = Duration::from_secs(10);
pub(crate) const DEFAULT_TEST_PACKETS: u32 = 20;
#[wasm_bindgen]
pub struct NymNodeTester {
test_in_progress: Arc<AtomicBool>,
// we need to increment the nonce between tests to distinguish the packets
// but we can't make the tester mutable because of wasm...
// so we're using the atomics
current_test_nonce: AtomicU32,
// blame all those mutexes on being unable to have an async method with internal mutability...
tester: Arc<SyncMutex<NodeTester<OsRng>>>,
gateway_client: LockedGatewayClient,
// we have to put it behind the lock due to wasm limitations and borrowing...
// the mutex acquisition should be instant as there aren't going to be any threads attempting
// to get simultaneous access
processed_receiver: ReceivedReceiverWrapper,
// even though we don't use graceful shutdowns, other components rely on existence of this struct
// and if it's dropped, everything will start going offline
_task_manager: TaskManager,
}
#[wasm_bindgen]
pub struct NymNodeTesterBuilder {
gateway_config: GatewayEndpointConfig,
base_topology: NymTopology,
/// KeyManager object containing smart pointers to all relevant keys used by the client.
key_manager: KeyManager,
// unimplemented
bandwidth_controller:
Option<BandwidthController<FakeClient<DirectSigningNyxdClient>, EphemeralStorage>>,
}
fn address(keys: &KeyManager, gateway_identity: NodeIdentity) -> Recipient {
Recipient::new(
*keys.identity_keypair().public_key(),
*keys.encryption_keypair().public_key(),
gateway_identity,
)
}
#[wasm_bindgen]
impl NymNodeTesterBuilder {
#[wasm_bindgen(constructor)]
pub fn new(
gateway_config: GatewayEndpointConfig,
base_topology: WasmNymTopology,
) -> NymNodeTesterBuilder {
NymNodeTesterBuilder {
gateway_config,
base_topology: base_topology.into(),
key_manager: setup_new_key_manager(),
bandwidth_controller: None,
}
}
async fn _new_with_api(
gateway_config: GatewayEndpointConfig,
api_url: String,
) -> Result<Self, WasmClientError> {
let topology = current_network_topology_async(api_url).await?;
Ok(NymNodeTesterBuilder::new(gateway_config, topology))
}
pub fn new_with_api(gateway_config: GatewayEndpointConfig, api_url: String) -> Promise {
future_to_promise(async move {
Self::_new_with_api(gateway_config, api_url)
.await
.into_promise_result()
})
}
async fn _setup_client(mut self) -> Result<NymNodeTester, WasmClientError> {
let rng = OsRng;
let task_manager = TaskManager::default();
let gateway_identity =
identity::PublicKey::from_base58_string(self.gateway_config.gateway_id)
.map_err(|source| WasmClientError::InvalidGatewayIdentity { source })?;
// we **REALLY** need persistence...
let shared_key = if self.key_manager.is_gateway_key_set() {
Some(self.key_manager.gateway_shared_key())
} else {
console_warn!("Gateway key not set - will derive a fresh one.");
None
};
let (mixnet_message_sender, mixnet_message_receiver) = mpsc::unbounded();
let (ack_sender, ack_receiver) = mpsc::unbounded();
let mut gateway_client = GatewayClient::new(
self.gateway_config.gateway_listener,
self.key_manager.identity_keypair(),
gateway_identity,
shared_key,
mixnet_message_sender,
ack_sender,
Duration::from_secs(10),
self.bandwidth_controller.take(),
task_manager.subscribe(),
);
gateway_client.set_disabled_credentials_mode(true);
let shared_keys = gateway_client.authenticate_and_start().await?;
// currently pointless but might as well do it for the future ¯\_(ツ)_/¯
self.key_manager.insert_gateway_shared_key(shared_keys);
// TODO: make those values configurable later
let tester = NodeTester::new(
rng,
self.base_topology,
address(&self.key_manager, gateway_identity),
PacketSize::default(),
Duration::from_millis(5),
Duration::from_millis(5),
self.key_manager.ack_key(),
);
let (processed_sender, processed_receiver) = mpsc::unbounded();
let mut receiver = SimpleMessageReceiver::new_sphinx_receiver(
self.key_manager.encryption_keypair(),
self.key_manager.ack_key(),
mixnet_message_receiver,
ack_receiver,
processed_sender,
task_manager.subscribe(),
);
nym_task::spawn(async move { receiver.run().await });
Ok(NymNodeTester {
test_in_progress: Arc::new(AtomicBool::new(false)),
current_test_nonce: Default::default(),
tester: Arc::new(SyncMutex::new(tester)),
gateway_client: Arc::new(AsyncMutex::new(gateway_client)),
processed_receiver: ReceivedReceiverWrapper::new(processed_receiver),
_task_manager: task_manager,
})
}
pub fn setup_client(self) -> Promise {
future_to_promise(async move { self._setup_client().await.into_promise_result() })
}
}
async fn test_mixnode(
test_packets: Vec<PreparedFragment>,
gateway_client: LockedGatewayClient,
processed_receiver: ReceivedReceiverWrapper,
_test_marker: TestMarker,
timeout: Duration,
) -> Result<NodeTestResult, WasmClientError> {
let num_test_packets = test_packets.len() as u32;
let expected_ack_ids = test_packets
.iter()
.map(|p| p.fragment_identifier)
.collect::<HashSet<_>>();
let mix_packets = test_packets.into_iter().map(|p| p.mix_packet).collect();
// start by clearing any messages that might have been received between tests
processed_receiver.clear_received_channel().await;
// locking the gateway client so that we could get mutable access to data without having to declare
// self mutable
let mut gateway_permit = gateway_client.lock().await;
gateway_permit.batch_send_mix_packets(mix_packets).await?;
let receiver_permit = processed_receiver.lock().await;
let result =
EphemeralTestReceiver::new(num_test_packets, expected_ack_ids, receiver_permit, timeout)
.perform_test()
.await;
Ok(result)
}
#[wasm_bindgen]
impl NymNodeTester {
#[wasm_bindgen(constructor)]
#[allow(clippy::new_ret_no_self)]
pub fn new(gateway_config: GatewayEndpointConfig, topology: WasmNymTopology) -> Promise {
console_log!("constructing node tester!");
NymNodeTesterBuilder::new(gateway_config, topology).setup_client()
}
async fn _new_with_api(
gateway_config: GatewayEndpointConfig,
api_url: String,
) -> Result<Self, WasmClientError> {
NymNodeTesterBuilder::_new_with_api(gateway_config, api_url)
.await?
._setup_client()
.await
}
pub fn new_with_api(gateway_config: GatewayEndpointConfig, api_url: String) -> Promise {
future_to_promise(async move {
Self::_new_with_api(gateway_config, api_url)
.await
.into_promise_result()
})
}
fn prepare_test_packets(
&self,
mixnode_identity: String,
test_nonce: u32,
num_test_packets: u32,
) -> Result<Vec<PreparedFragment>, WasmClientError> {
let test_ext = WasmTestMessageExt::new(test_nonce);
let mut tester_permit = self.tester.lock().expect("mutex got poisoned");
tester_permit
.existing_identity_mixnode_test_packets(mixnode_identity, test_ext, num_test_packets)
.map_err(Into::into)
}
pub fn test_node(
&self,
mixnode_identity: String,
timeout_millis: Option<u64>,
num_test_packets: Option<u32>,
) -> Promise {
// establish test parameters
let timeout = timeout_millis
.map(Duration::from_millis)
.unwrap_or(DEFAULT_TEST_TIMEOUT);
let num_test_packets = num_test_packets.unwrap_or(DEFAULT_TEST_PACKETS);
// mark start of the test
if self.test_in_progress.swap(true, Ordering::SeqCst) {
return WasmClientError::TestInProgress.into_rejected_promise();
}
// prepare test packets
// (I simultaneously feel both disgusted and amazed by this workaround)
let test_nonce = self.current_test_nonce.fetch_add(1, Ordering::Relaxed);
let test_packets = check_promise_result!(self.prepare_test_packets(
mixnode_identity,
test_nonce,
num_test_packets
));
let processed_receiver_clone = self.processed_receiver.clone();
let gateway_client_clone = Arc::clone(&self.gateway_client);
let tester_marker = TestMarker::new(Arc::clone(&self.test_in_progress));
// start doing async things (send packets and watch for anything coming back)
future_to_promise(async move {
test_mixnode(
test_packets,
gateway_client_clone,
processed_receiver_clone,
tester_marker,
timeout,
)
.await
.into_promise_result()
})
}
}
+262
View File
@@ -0,0 +1,262 @@
// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
// SPDX-License-Identifier: Apache-2.0
use nym_client_core::config::GatewayEndpointConfig;
use nym_crypto::asymmetric::{encryption, identity};
use nym_topology::gateway::GatewayConversionError;
use nym_topology::mix::{Layer, MixnodeConversionError};
use nym_topology::{gateway, mix, MixLayer, NymTopology};
use nym_validator_client::client::MixId;
use serde::{Deserialize, Serialize};
use std::collections::BTreeMap;
use thiserror::Error;
use wasm_bindgen::prelude::wasm_bindgen;
use wasm_bindgen::JsValue;
use wasm_utils::{console_log, simple_js_error};
#[derive(Debug, Error)]
pub enum WasmTopologyError {
#[error("got invalid mix layer {value}. Expected 1, 2 or 3.")]
InvalidMixLayer { value: u8 },
#[error(transparent)]
GatewayConversion(#[from] GatewayConversionError),
#[error(transparent)]
MixnodeConversion(#[from] MixnodeConversionError),
#[error("The provided mixnode map was malformed: {source}")]
MalformedMixnodeMap { source: serde_wasm_bindgen::Error },
#[error("The provided gateway list was malformed: {source}")]
MalformedGatewayList { source: serde_wasm_bindgen::Error },
}
impl From<WasmTopologyError> for JsValue {
fn from(value: WasmTopologyError) -> Self {
simple_js_error(value.to_string())
}
}
#[wasm_bindgen]
#[derive(Debug)]
pub struct WasmNymTopology {
inner: NymTopology,
}
#[wasm_bindgen]
impl WasmNymTopology {
#[wasm_bindgen(constructor)]
pub fn new(
// expected: BTreeMap<MixLayer, Vec<WasmMixNode>>,
// HashMap<MixLayer, Vec<WasmMixNode>> will also work because it has the same json representation
mixnodes: JsValue,
// expected: Vec<WasmGateway>
gateways: JsValue,
) -> Result<WasmNymTopology, WasmTopologyError> {
let mixnodes: BTreeMap<MixLayer, Vec<WasmMixNode>> =
serde_wasm_bindgen::from_value(mixnodes)
.map_err(|source| WasmTopologyError::MalformedMixnodeMap { source })?;
let gateways: Vec<WasmGateway> = serde_wasm_bindgen::from_value(gateways)
.map_err(|source| WasmTopologyError::MalformedGatewayList { source })?;
let mut converted_mixes = BTreeMap::new();
for (layer, nodes) in mixnodes {
let layer_nodes = nodes
.into_iter()
.map(TryInto::try_into)
.collect::<Result<_, _>>()?;
converted_mixes.insert(layer, layer_nodes);
}
let gateways = gateways
.into_iter()
.map(TryInto::try_into)
.collect::<Result<_, _>>()?;
Ok(WasmNymTopology {
inner: NymTopology::new(converted_mixes, gateways),
})
}
pub(crate) fn ensure_contains(&self, gateway_config: &GatewayEndpointConfig) -> bool {
self.inner
.gateways()
.iter()
.any(|g| g.identity_key.to_base58_string() == gateway_config.gateway_id)
}
pub fn print(&self) {
if !self.inner.mixes().is_empty() {
console_log!("mixnodes:");
for (layer, nodes) in self.inner.mixes() {
console_log!("\tlayer {layer}:");
for node in nodes {
console_log!("\t\t{} - {}", node.mix_id, node.identity_key)
}
}
} else {
console_log!("NO MIXNODES")
}
if !self.inner.gateways().is_empty() {
console_log!("gateways:");
for gateway in self.inner.gateways() {
console_log!("\t{}", gateway.identity_key)
}
} else {
console_log!("NO GATEWAYS")
}
}
}
impl From<WasmNymTopology> for NymTopology {
fn from(value: WasmNymTopology) -> Self {
value.inner
}
}
impl From<NymTopology> for WasmNymTopology {
fn from(value: NymTopology) -> Self {
WasmNymTopology { inner: value }
}
}
#[wasm_bindgen]
#[derive(Serialize, Deserialize, Debug, Clone)]
pub struct WasmMixNode {
pub mix_id: MixId,
#[wasm_bindgen(getter_with_clone)]
pub owner: String,
#[wasm_bindgen(getter_with_clone)]
pub host: String,
pub mix_port: u16,
#[wasm_bindgen(getter_with_clone)]
pub identity_key: String,
#[wasm_bindgen(getter_with_clone)]
pub sphinx_key: String,
pub layer: MixLayer,
#[wasm_bindgen(getter_with_clone)]
pub version: String,
}
#[wasm_bindgen]
impl WasmMixNode {
#[wasm_bindgen(constructor)]
#[allow(clippy::too_many_arguments)]
pub fn new(
mix_id: MixId,
owner: String,
host: String,
mix_port: u16,
identity_key: String,
sphinx_key: String,
layer: MixLayer,
version: String,
) -> Self {
Self {
mix_id,
owner,
host,
mix_port,
identity_key,
sphinx_key,
layer,
version,
}
}
}
impl TryFrom<WasmMixNode> for mix::Node {
type Error = WasmTopologyError;
fn try_from(value: WasmMixNode) -> Result<Self, Self::Error> {
let host = mix::Node::parse_host(&value.host)?;
// try to completely resolve the host in the mix situation to avoid doing it every
// single time we want to construct a path
let mix_host = mix::Node::extract_mix_host(&host, value.mix_port)?;
Ok(mix::Node {
mix_id: value.mix_id,
owner: value.owner,
host,
mix_host,
identity_key: identity::PublicKey::from_base58_string(&value.identity_key)
.map_err(MixnodeConversionError::from)?,
sphinx_key: encryption::PublicKey::from_base58_string(&value.sphinx_key)
.map_err(MixnodeConversionError::from)?,
layer: Layer::try_from(value.layer)
.map_err(|_| WasmTopologyError::InvalidMixLayer { value: value.layer })?,
version: value.version,
})
}
}
#[wasm_bindgen]
#[derive(Serialize, Deserialize, Debug, Clone)]
pub struct WasmGateway {
#[wasm_bindgen(getter_with_clone)]
pub owner: String,
#[wasm_bindgen(getter_with_clone)]
pub host: String,
pub mix_port: u16,
pub clients_port: u16,
#[wasm_bindgen(getter_with_clone)]
pub identity_key: String,
#[wasm_bindgen(getter_with_clone)]
pub sphinx_key: String,
#[wasm_bindgen(getter_with_clone)]
pub version: String,
}
#[wasm_bindgen]
impl WasmGateway {
#[wasm_bindgen(constructor)]
pub fn new(
owner: String,
host: String,
mix_port: u16,
clients_port: u16,
identity_key: String,
sphinx_key: String,
version: String,
) -> Self {
Self {
owner,
host,
mix_port,
clients_port,
identity_key,
sphinx_key,
version,
}
}
}
impl TryFrom<WasmGateway> for gateway::Node {
type Error = WasmTopologyError;
fn try_from(value: WasmGateway) -> Result<Self, Self::Error> {
let host = gateway::Node::parse_host(&value.host)?;
// try to completely resolve the host in the mix situation to avoid doing it every
// single time we want to construct a path
let mix_host = gateway::Node::extract_mix_host(&host, value.mix_port)?;
Ok(gateway::Node {
owner: value.owner,
host,
mix_host,
clients_port: value.clients_port,
identity_key: identity::PublicKey::from_base58_string(&value.identity_key)
.map_err(GatewayConversionError::from)?,
sphinx_key: encryption::PublicKey::from_base58_string(&value.sphinx_key)
.map_err(GatewayConversionError::from)?,
version: value.version,
})
}
}
@@ -22,7 +22,7 @@ use crate::client::topology_control::{
};
use crate::config::{Config, DebugConfig, GatewayEndpointConfig};
use crate::error::ClientCoreError;
use crate::spawn_future;
use crate::{config, spawn_future};
use futures::channel::mpsc;
use log::{debug, info};
use nym_bandwidth_controller::BandwidthController;
@@ -39,7 +39,6 @@ use nym_task::connections::{ConnectionCommandReceiver, ConnectionCommandSender,
use nym_task::{TaskClient, TaskManager};
use nym_topology::provider_trait::TopologyProvider;
use std::sync::Arc;
use std::time::Duration;
use tap::TapFallible;
use url::Url;
@@ -371,11 +370,12 @@ where
// the current global view of topology
async fn start_topology_refresher(
topology_provider: Box<dyn TopologyProvider>,
refresh_rate: Duration,
topology_config: config::Topology,
topology_accessor: TopologyAccessor,
shutdown: TaskClient,
mut shutdown: TaskClient,
) -> Result<(), ClientCoreError> {
let topology_refresher_config = TopologyRefresherConfig::new(refresh_rate);
let topology_refresher_config =
TopologyRefresherConfig::new(topology_config.topology_refresh_rate);
let mut topology_refresher = TopologyRefresher::new(
topology_refresher_config,
@@ -395,8 +395,17 @@ where
return Err(ClientCoreError::InsufficientNetworkTopology(err));
}
info!("Starting topology refresher...");
topology_refresher.start_with_shutdown(shutdown);
if topology_config.disable_refreshing {
// if we're not spawning the refresher, don't cause shutdown immediately
info!("The topology refesher is not going to be started");
shutdown.mark_as_success();
} else {
// don't spawn the refresher if we don't want to be refreshing the topology.
// only use the initial values obtained
info!("Starting topology refresher...");
topology_refresher.start_with_shutdown(shutdown);
}
Ok(())
}
@@ -500,7 +509,7 @@ where
);
Self::start_topology_refresher(
topology_provider,
self.debug_config.topology.topology_refresh_rate,
self.debug_config.topology,
shared_topology_accessor.clone(),
task_manager.subscribe(),
)
@@ -1,5 +1,9 @@
// Copyright 2020-2023 - Nym Technologies SA <contact@nymtech.net>
// SPDX-License-Identifier: Apache-2.0
use nym_sphinx::addressing::clients::Recipient;
use nym_sphinx::anonymous_replies::requests::AnonymousSenderTag;
use nym_sphinx::forwarding::packet::MixPacket;
use nym_task::connections::TransmissionLane;
pub type InputMessageSender = tokio::sync::mpsc::Sender<InputMessage>;
@@ -7,6 +11,14 @@ pub type InputMessageReceiver = tokio::sync::mpsc::Receiver<InputMessage>;
#[derive(Debug)]
pub enum InputMessage {
/// Fire an already prepared mix packets into the network.
/// No guarantees are made about it. For example no retransmssion
/// will be attempted if it gets dropped.
Premade {
msgs: Vec<MixPacket>,
lane: TransmissionLane,
},
/// The simplest message variant where no additional information is attached.
/// You're simply sending your `data` to specified `recipient` without any tagging.
///
@@ -44,6 +56,10 @@ pub enum InputMessage {
}
impl InputMessage {
pub fn new_premade(msgs: Vec<MixPacket>, lane: TransmissionLane) -> Self {
InputMessage::Premade { msgs, lane }
}
pub fn new_regular(recipient: Recipient, data: Vec<u8>, lane: TransmissionLane) -> Self {
InputMessage::Regular {
recipient,
@@ -82,7 +98,8 @@ impl InputMessage {
match self {
InputMessage::Regular { lane, .. }
| InputMessage::Anonymous { lane, .. }
| InputMessage::Reply { lane, .. } => lane,
| InputMessage::Reply { lane, .. }
| InputMessage::Premade { lane, .. } => lane,
}
}
}
@@ -3,10 +3,12 @@
use crate::client::inbound_messages::{InputMessage, InputMessageReceiver};
use crate::client::real_messages_control::message_handler::MessageHandler;
use crate::client::real_messages_control::real_traffic_stream::RealMessage;
use crate::client::replies::reply_controller::ReplyControllerSender;
use log::*;
use nym_sphinx::addressing::clients::Recipient;
use nym_sphinx::anonymous_replies::requests::AnonymousSenderTag;
use nym_sphinx::forwarding::packet::MixPacket;
use nym_task::connections::TransmissionLane;
use rand::{CryptoRng, Rng};
@@ -41,6 +43,18 @@ where
}
}
async fn handle_premade_packets(&mut self, packets: Vec<MixPacket>, lane: TransmissionLane) {
self.message_handler
.send_premade_mix_packets(
packets
.into_iter()
.map(|p| RealMessage::new(p, None))
.collect(),
lane,
)
.await
}
async fn handle_reply(
&mut self,
recipient_tag: AnonymousSenderTag,
@@ -106,6 +120,7 @@ where
} => {
self.handle_reply(recipient_tag, data, lane).await;
}
InputMessage::Premade { msgs, lane } => self.handle_premade_packets(msgs, lane).await,
};
}
@@ -131,7 +131,10 @@ where
// send to `OutQueueControl` to eventually send to the mix network
self.message_handler
.forward_messages(
vec![RealMessage::new(prepared_fragment.mix_packet, frag_id)],
vec![RealMessage::new(
prepared_fragment.mix_packet,
Some(frag_id),
)],
TransmissionLane::Retransmission,
)
.await
@@ -291,8 +291,10 @@ where
.try_prepare_single_reply_chunk_for_sending(reply_surb, chunk_clone)
.await?;
let real_messages =
RealMessage::new(prepared_fragment.mix_packet, chunk.fragment_identifier());
let real_messages = RealMessage::new(
prepared_fragment.mix_packet,
Some(chunk.fragment_identifier()),
);
let delay = prepared_fragment.total_delay;
let pending_ack =
PendingAcknowledgement::new_anonymous(chunk, delay, target, is_extra_surb_request);
@@ -384,7 +386,8 @@ where
let lane = raw.0;
let fragment = raw.1;
let real_message = RealMessage::new(prepared.mix_packet, prepared.fragment_identifier);
let real_message =
RealMessage::new(prepared.mix_packet, Some(prepared.fragment_identifier));
let delay = prepared.total_delay;
let pending_ack = PendingAcknowledgement::new_anonymous(fragment, delay, target, false);
@@ -401,6 +404,14 @@ where
Ok(())
}
pub(crate) async fn send_premade_mix_packets(
&mut self,
msgs: Vec<RealMessage>,
lane: TransmissionLane,
) {
self.forward_messages(msgs, lane).await;
}
pub(crate) async fn try_send_plain_message(
&mut self,
recipient: Recipient,
@@ -444,8 +455,10 @@ where
&recipient,
)?;
let real_message =
RealMessage::new(prepared_fragment.mix_packet, fragment.fragment_identifier());
let real_message = RealMessage::new(
prepared_fragment.mix_packet,
Some(fragment.fragment_identifier()),
);
let delay = prepared_fragment.total_delay;
let pending_ack = PendingAcknowledgement::new_known(fragment, delay, recipient);
@@ -121,7 +121,7 @@ where
#[derive(Debug)]
pub(crate) struct RealMessage {
mix_packet: MixPacket,
fragment_id: FragmentIdentifier,
fragment_id: Option<FragmentIdentifier>,
// TODO: add info about it being constructed with reply-surb
}
@@ -129,7 +129,7 @@ impl From<PreparedFragment> for RealMessage {
fn from(fragment: PreparedFragment) -> Self {
RealMessage {
mix_packet: fragment.mix_packet,
fragment_id: fragment.fragment_identifier,
fragment_id: Some(fragment.fragment_identifier),
}
}
}
@@ -139,7 +139,7 @@ impl RealMessage {
self.mix_packet.sphinx_packet().len()
}
pub(crate) fn new(mix_packet: MixPacket, fragment_id: FragmentIdentifier) -> Self {
pub(crate) fn new(mix_packet: MixPacket, fragment_id: Option<FragmentIdentifier>) -> Self {
RealMessage {
mix_packet,
fragment_id,
@@ -255,7 +255,7 @@ where
)
}
StreamMessage::Real(real_message) => {
(real_message.mix_packet, Some(real_message.fragment_id))
(real_message.mix_packet, real_message.fragment_id)
}
};
+6
View File
@@ -743,6 +743,11 @@ pub struct Topology {
/// did not reach its destination.
#[serde(with = "humantime_serde")]
pub topology_resolution_timeout: Duration,
/// Specifies whether the client should not refresh the network topology after obtaining
/// the first valid instance.
/// Supersedes `topology_refresh_rate_ms`.
pub disable_refreshing: bool,
}
impl Default for Topology {
@@ -750,6 +755,7 @@ impl Default for Topology {
Topology {
topology_refresh_rate: DEFAULT_TOPOLOGY_REFRESH_RATE,
topology_resolution_timeout: DEFAULT_TOPOLOGY_RESOLUTION_TIMEOUT,
disable_refreshing: false,
}
}
}
@@ -142,6 +142,7 @@ impl From<OldDebugConfigV1_1_13> for DebugConfig {
topology: Topology {
topology_refresh_rate: value.topology_refresh_rate,
topology_resolution_timeout: value.topology_resolution_timeout,
disable_refreshing: false,
},
reply_surbs: ReplySurbs {
minimum_reply_surb_storage_threshold: value.minimum_reply_surb_storage_threshold,
@@ -13,7 +13,8 @@ pub mod nyxd;
pub mod signing;
pub use crate::error::ValidatorClientError;
pub use client::NymApiClient;
pub use nym_api_requests::*;
#[cfg(feature = "nyxd-client")]
pub use client::{Client, CoconutApiClient, Config, NymApiClient};
pub use client::{Client, CoconutApiClient, Config};
+29
View File
@@ -0,0 +1,29 @@
[package]
name = "nym-node-tester-utils"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
futures = "0.3.28"
rand = "0.7.3"
serde = { workspace = true }
serde_json = { workspace = true }
thiserror = { workspace = true }
tokio = { workspace = true, features = ["macros"]}
nym-crypto = { path = "../crypto", features = ["asymmetric"] }
nym-task = { path = "../task" }
nym-topology = { path = "../topology" }
# TODO: do we need the whole nymsphinx?
nym-sphinx = { path = "../nymsphinx" }
## non-wasm-only dependencies
[target."cfg(not(target_arch = \"wasm32\"))".dependencies.log]
workspace = true
## wasm-only dependencies
[target."cfg(target_arch = \"wasm32\")".dependencies.wasm-utils]
path = "../wasm-utils"
+49
View File
@@ -0,0 +1,49 @@
// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
// SPDX-License-Identifier: Apache-2.0
use crate::MixId;
use nym_sphinx::chunking::ChunkingError;
use nym_sphinx::receiver::MessageRecoveryError;
use nym_topology::NymTopologyError;
use thiserror::Error;
#[derive(Debug, Error)]
pub enum NetworkTestingError {
#[error(transparent)]
SerializationFailure(#[from] serde_json::Error),
#[error("could not recover received test message: {source}")]
MalformedTestMessageReceived { source: serde_json::Error },
#[error(transparent)]
InvalidTopology(#[from] NymTopologyError),
#[error("The specified mixnode (id: {mix_id}) doesn't exist")]
NonExistentMixnode { mix_id: MixId },
#[error("The specified mixnode (identity: {mix_identity}) doesn't exist")]
NonExistentMixnodeIdentity { mix_identity: String },
#[error("The specified gateway (id: {gateway_identity}) doesn't exist")]
NonExistentGateway { gateway_identity: String },
#[error("The provided test message is too long to fit in a single sphinx packet")]
TestMessageTooLong,
#[error(
"could not recover underlying data from the received packet since it was malformed: {source}"
)]
MalformedPacketReceived {
#[from]
source: MessageRecoveryError,
},
#[error("Received ack packet could not be recovered")]
UnrecoverableAck,
#[error("could not recover ack FragmentIdentifier: {source}")]
MalformedAckIdentifier { source: ChunkingError },
#[error("received a packet that could not be reconstructed into a full message with a single fragment")]
NonReconstructablePacket,
}
+46
View File
@@ -0,0 +1,46 @@
// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
// SPDX-License-Identifier: Apache-2.0
pub mod error;
pub mod message;
pub mod receiver;
pub mod tester;
pub use message::{Empty, TestMessage};
pub use tester::NodeTester;
// it feels wrong to redefine it, but I don't want to import the whole of contract commons just for this one type
pub(crate) type MixId = u32;
#[macro_export]
macro_rules! log_err {
($($t:tt)*) => {{
#[cfg(target_arch = "wasm32")]
{::wasm_utils::console_error!($($t)*)}
#[cfg(not(target_arch = "wasm32"))]
{::log::error!($($t)*)}
}};
}
#[macro_export]
macro_rules! log_warn {
($($t:tt)*) => {{
#[cfg(target_arch = "wasm32")]
{::wasm_utils::console_warn!($($t)*)}
#[cfg(not(target_arch = "wasm32"))]
{::log::warn!($($t)*)}
}};
}
#[macro_export]
macro_rules! log_info {
($($t:tt)*) => {{
#[cfg(target_arch = "wasm32")]
{::wasm_utils::console_log!($($t)*)}
#[cfg(not(target_arch = "wasm32"))]
{::log::info!($($t)*)}
}};
}
+99
View File
@@ -0,0 +1,99 @@
// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
// SPDX-License-Identifier: Apache-2.0
use crate::error::NetworkTestingError;
use crate::MixId;
use nym_sphinx::message::NymMessage;
use nym_topology::{gateway, mix};
use serde::de::DeserializeOwned;
use serde::{Deserialize, Serialize};
use std::hash::{Hash, Hasher};
#[derive(Serialize, Deserialize, Hash, Clone, Copy)]
pub enum NodeType {
Mixnode(MixId),
Gateway,
}
#[derive(Serialize, Deserialize, Hash, Clone, Copy)]
pub struct Empty;
#[derive(Serialize, Deserialize, Clone)]
pub struct TestMessage<T = Empty> {
pub encoded_node_identity: String,
pub node_owner: String,
pub node_type: NodeType,
pub msg_id: u32,
pub total_msgs: u32,
// any additional fields that might be required by a specific tester.
// For example nym-api might want to attach route ids
#[serde(flatten)]
pub ext: T,
}
impl<T> TestMessage<T> {
pub fn new_mix(node: &mix::Node, msg_id: u32, total_msgs: u32, ext: T) -> Self {
TestMessage {
encoded_node_identity: node.identity_key.to_base58_string(),
node_owner: node.owner.clone(),
node_type: NodeType::Mixnode(node.mix_id),
msg_id,
total_msgs,
ext,
}
}
pub fn new_gateway(node: &gateway::Node, msg_id: u32, total_msgs: u32, ext: T) -> Self {
TestMessage {
encoded_node_identity: node.identity_key.to_base58_string(),
node_owner: node.owner.clone(),
node_type: NodeType::Gateway,
msg_id,
total_msgs,
ext,
}
}
pub fn as_json_string(&self) -> Result<String, NetworkTestingError>
where
T: Serialize,
{
serde_json::to_string(self).map_err(Into::into)
}
pub fn as_bytes(&self) -> Result<Vec<u8>, NetworkTestingError>
where
T: Serialize,
{
// the test messages are supposed to be rather small so we can use the good old serde_json
// (the performance penalty over bincode or custom serialization should be minimal)
serde_json::to_vec(self).map_err(Into::into)
}
pub fn try_recover(msg: NymMessage) -> Result<Self, NetworkTestingError>
where
T: DeserializeOwned,
{
let inner = msg.into_inner_data();
Self::try_recover_from_bytes(&inner)
}
pub fn try_recover_from_bytes(raw: &[u8]) -> Result<Self, NetworkTestingError>
where
T: DeserializeOwned,
{
serde_json::from_slice(raw)
.map_err(|source| NetworkTestingError::MalformedTestMessageReceived { source })
}
}
impl<T: Hash> Hash for TestMessage<T> {
fn hash<H: Hasher>(&self, state: &mut H) {
self.encoded_node_identity.hash(state);
self.node_owner.hash(state);
self.node_type.hash(state);
self.ext.hash(state)
}
}
+148
View File
@@ -0,0 +1,148 @@
// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
// SPDX-License-Identifier: Apache-2.0
use crate::error::NetworkTestingError;
use crate::{log_err, log_info, log_warn};
use futures::channel::mpsc;
use futures::StreamExt;
use nym_crypto::asymmetric::encryption;
use nym_sphinx::message::NymMessage;
use nym_sphinx::receiver::{MessageReceiver, SphinxMessageReceiver};
use nym_sphinx::{
acknowledgements::{identifier::recover_identifier, AckKey},
chunking::fragment::FragmentIdentifier,
};
use nym_task::TaskClient;
use std::sync::Arc;
pub type ReceivedSender = mpsc::UnboundedSender<Received>;
pub type ReceivedReceiver = mpsc::UnboundedReceiver<Received>;
// simple enum containing aggregated processed results
pub enum Received {
Message(NymMessage),
Ack(FragmentIdentifier),
}
impl From<NymMessage> for Received {
fn from(value: NymMessage) -> Self {
Received::Message(value)
}
}
impl From<FragmentIdentifier> for Received {
fn from(value: FragmentIdentifier) -> Self {
Received::Ack(value)
}
}
// the 'Simple' bit comes from the fact that it expects all received messages to consist of a single `Fragment`
pub struct SimpleMessageReceiver<R: MessageReceiver = SphinxMessageReceiver> {
local_encryption_keypair: Arc<encryption::KeyPair>,
ack_key: Arc<AckKey>,
/// Structure responsible for decrypting and recovering plaintext message from received ciphertexts.
message_receiver: R,
mixnet_message_receiver: mpsc::UnboundedReceiver<Vec<Vec<u8>>>,
acks_receiver: mpsc::UnboundedReceiver<Vec<Vec<u8>>>,
received_sender: ReceivedSender,
shutdown: TaskClient,
}
impl SimpleMessageReceiver<SphinxMessageReceiver> {
pub fn new_sphinx_receiver(
local_encryption_keypair: Arc<encryption::KeyPair>,
ack_key: Arc<AckKey>,
mixnet_message_receiver: mpsc::UnboundedReceiver<Vec<Vec<u8>>>,
acks_receiver: mpsc::UnboundedReceiver<Vec<Vec<u8>>>,
received_sender: ReceivedSender,
shutdown: TaskClient,
) -> Self {
SimpleMessageReceiver {
local_encryption_keypair,
ack_key,
message_receiver: SphinxMessageReceiver::new(),
mixnet_message_receiver,
acks_receiver,
received_sender,
shutdown,
}
}
}
impl<R: MessageReceiver> SimpleMessageReceiver<R> {
fn forward_received<T: Into<Received>>(&self, received: T) {
// TODO: remove the unwrap once/if we do graceful shutdowns here
self.received_sender
.unbounded_send(received.into())
.expect("ReceivedReceiver has stopped receiving");
}
fn on_mixnet_message(&mut self, mut raw_message: Vec<u8>) -> Result<(), NetworkTestingError> {
let plaintext = self
.message_receiver
.recover_plaintext_from_regular_packet(
self.local_encryption_keypair.private_key(),
&mut raw_message,
)?;
let fragment = self.message_receiver.recover_fragment(plaintext)?;
let (recovered, _) = self
.message_receiver
.insert_new_fragment(fragment)?
.ok_or(NetworkTestingError::NonReconstructablePacket)?; // by definition of this receiver, the message must consist of a single fragment
self.forward_received(recovered);
Ok(())
}
fn on_ack(&mut self, raw_ack: Vec<u8>) -> Result<(), NetworkTestingError> {
let serialized_ack = recover_identifier(&self.ack_key, &raw_ack)
.ok_or(NetworkTestingError::UnrecoverableAck)?;
let frag_id = FragmentIdentifier::try_from_bytes(serialized_ack)
.map_err(|source| NetworkTestingError::MalformedAckIdentifier { source })?;
self.forward_received(frag_id);
Ok(())
}
pub async fn run(&mut self) {
while !self.shutdown.is_shutdown() {
tokio::select! {
biased;
_ = self.shutdown.recv() => {
log_info!("SimpleMessageReceiver: received shutdown")
}
mixnet_messages = self.mixnet_message_receiver.next() => {
let Some(mixnet_messages) = mixnet_messages else {
log_err!("the mixnet messages stream has terminated!");
// note: this will cause global shutdown, but we have no choice if we stopped receiving mixnet messages
break
};
for message in mixnet_messages {
if let Err(err) = self.on_mixnet_message(message) {
log_warn!("failed to process received mixnet message: {err}")
}
}
}
acks = self.acks_receiver.next() => {
let Some(acks) = acks else {
log_err!("the ack messages stream has terminated!");
// note: this will cause global shutdown, but we have no choice if we stopped receiving mixnet messages
break
};
for ack in acks {
if let Err(err) = self.on_ack(ack) {
log_warn!("failed to process received ack message: {err}")
}
}
}
}
}
log_info!("SimpleMessageReceiver: Exiting")
}
}
+195
View File
@@ -0,0 +1,195 @@
// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
// SPDX-License-Identifier: Apache-2.0
use crate::error::NetworkTestingError;
use crate::Empty;
use crate::MixId;
use crate::TestMessage;
use nym_sphinx::acknowledgements::AckKey;
use nym_sphinx::addressing::clients::Recipient;
use nym_sphinx::message::NymMessage;
use nym_sphinx::params::{PacketSize, DEFAULT_NUM_MIX_HOPS};
use nym_sphinx::preparer::{FragmentPreparer, PreparedFragment};
use nym_topology::{gateway, mix, NymTopology};
use rand::{CryptoRng, Rng};
use serde::Serialize;
use std::sync::Arc;
use std::time::Duration;
pub struct NodeTester<R> {
rng: R,
base_topology: NymTopology,
recipient: Recipient,
packet_size: PacketSize,
/// Average delay a data packet is going to get delay at a single mixnode.
average_packet_delay: Duration,
/// Average delay an acknowledgement packet is going to get delay at a single mixnode.
average_ack_delay: Duration,
/// Number of mix hops each packet ('real' message, ack, reply) is expected to take.
/// Note that it does not include gateway hops.
num_mix_hops: u8,
// while acks are going to be ignored they still need to be constructed
// so that the gateway would be able to correctly process and forward the message
ack_key: Arc<AckKey>,
}
impl<R> NodeTester<R>
where
R: Rng + CryptoRng,
{
pub fn new(
rng: R,
base_topology: NymTopology,
recipient: Recipient,
packet_size: PacketSize,
average_packet_delay: Duration,
average_ack_delay: Duration,
ack_key: Arc<AckKey>,
) -> Self {
Self {
rng,
base_topology,
recipient,
packet_size,
average_packet_delay,
average_ack_delay,
num_mix_hops: DEFAULT_NUM_MIX_HOPS,
ack_key,
}
}
/// Allows setting non-default number of expected mix hops in the network.
#[allow(dead_code)]
pub fn with_mix_hops(mut self, hops: u8) -> Self {
self.num_mix_hops = hops;
self
}
pub fn testable_mix_topology(&self, node: &mix::Node) -> NymTopology {
let mut topology = self.base_topology.clone();
topology.set_mixes_in_layer(node.layer as u8, vec![node.clone()]);
topology
}
pub fn testable_gateway_topology(&self, gateway: &gateway::Node) -> NymTopology {
let mut topology = self.base_topology.clone();
topology.set_gateways(vec![gateway.clone()]);
topology
}
pub fn simple_mixnode_test_packets(
&mut self,
mix: &mix::Node,
test_packets: u32,
) -> Result<Vec<PreparedFragment>, NetworkTestingError> {
self.mixnode_test_packets(mix, Empty, test_packets)
}
pub fn mixnode_test_packets<T>(
&mut self,
mix: &mix::Node,
msg_ext: T,
test_packets: u32,
) -> Result<Vec<PreparedFragment>, NetworkTestingError>
where
T: Serialize + Clone,
{
let ephemeral_topology = self.testable_mix_topology(mix);
let mut packets = Vec::with_capacity(test_packets as usize);
for i in 1..=test_packets {
let msg = TestMessage::new_mix(mix, i, test_packets, msg_ext.clone());
packets.push(self.create_test_packet(&msg, &ephemeral_topology)?);
}
Ok(packets)
}
pub fn existing_mixnode_test_packets<T>(
&mut self,
mix_id: MixId,
msg_ext: T,
test_packets: u32,
) -> Result<Vec<PreparedFragment>, NetworkTestingError>
where
T: Serialize + Clone,
{
let Some(node) = self.base_topology.find_mix(mix_id) else {
return Err(NetworkTestingError::NonExistentMixnode {mix_id})
};
self.mixnode_test_packets(&node.clone(), msg_ext, test_packets)
}
pub fn existing_identity_mixnode_test_packets<T>(
&mut self,
encoded_mix_identity: String,
msg_ext: T,
test_packets: u32,
) -> Result<Vec<PreparedFragment>, NetworkTestingError>
where
T: Serialize + Clone,
{
let Some(node) = self.base_topology.find_mix_by_identity(&encoded_mix_identity) else {
return Err(NetworkTestingError::NonExistentMixnodeIdentity { mix_identity: encoded_mix_identity })
};
self.mixnode_test_packets(&node.clone(), msg_ext, test_packets)
}
pub fn create_test_packet<T>(
&mut self,
message: &TestMessage<T>,
topology: &NymTopology,
) -> Result<PreparedFragment, NetworkTestingError>
where
T: Serialize,
{
let serialized = message.as_bytes()?;
let message = NymMessage::new_plain(serialized);
let mut fragments = self.pad_and_split_message(message, self.packet_size);
if fragments.len() != 1 {
return Err(NetworkTestingError::TestMessageTooLong);
}
// SAFETY: the unwrap here is fine as if the vec was somehow empty
// we would have returned the error when checking for its length
let fragment = fragments.pop().unwrap();
// the packet is designed to be sent from ourselves to ourselves
let address = self.recipient;
// TODO: can we avoid this arc clone?
let ack_key = Arc::clone(&self.ack_key);
Ok(self.prepare_chunk_for_sending(fragment, topology, &ack_key, &address, &address)?)
}
}
impl<R: CryptoRng + Rng> FragmentPreparer for NodeTester<R> {
type Rng = R;
fn rng(&mut self) -> &mut Self::Rng {
&mut self.rng
}
fn num_mix_hops(&self) -> u8 {
self.num_mix_hops
}
fn average_packet_delay(&self) -> Duration {
self.average_packet_delay
}
fn average_ack_delay(&self) -> Duration {
self.average_ack_delay
}
}
+230 -125
View File
@@ -38,6 +38,200 @@ pub struct PreparedFragment {
pub fragment_identifier: FragmentIdentifier,
}
// this is extracted into a trait with default implementation to remove duplicate code
// (which we REALLY want to avoid with crypto)
pub trait FragmentPreparer {
type Rng: CryptoRng + Rng;
fn rng(&mut self) -> &mut Self::Rng;
fn num_mix_hops(&self) -> u8;
fn average_packet_delay(&self) -> Duration;
fn average_ack_delay(&self) -> Duration;
fn generate_reply_surbs(
&mut self,
amount: usize,
topology: &NymTopology,
reply_recipient: &Recipient,
) -> Result<Vec<ReplySurb>, NymTopologyError> {
let mut reply_surbs = Vec::with_capacity(amount);
let packet_delay = self.average_packet_delay();
for _ in 0..amount {
let reply_surb =
ReplySurb::construct(self.rng(), reply_recipient, packet_delay, topology)?;
reply_surbs.push(reply_surb)
}
Ok(reply_surbs)
}
fn generate_surb_ack(
&mut self,
recipient: &Recipient,
fragment_id: FragmentIdentifier,
topology: &NymTopology,
ack_key: &AckKey,
) -> Result<SurbAck, NymTopologyError> {
let ack_delay = self.average_ack_delay();
SurbAck::construct(
self.rng(),
recipient,
ack_key,
fragment_id.to_bytes(),
ack_delay,
topology,
)
}
/// The procedure is as follows:
/// For each fragment:
/// - compute SURB_ACK
/// - generate (x, g^x)
/// - obtain key k from the reply-surb which was computed as follows:
/// k = KDF(remote encryption key ^ x) this is equivalent to KDF( dh(remote, x) )
/// - compute v_b = AES-128-CTR(k, serialized_fragment)
/// - compute vk_b = H(k) || v_b
/// - compute sphinx_plaintext = SURB_ACK || H(k) || v_b
/// - compute sphinx_packet by applying the reply surb on the sphinx_plaintext
fn prepare_reply_chunk_for_sending(
&mut self,
fragment: Fragment,
topology: &NymTopology,
ack_key: &AckKey,
reply_surb: ReplySurb,
packet_sender: &Recipient,
) -> Result<PreparedFragment, NymTopologyError> {
// each reply attaches the digest of the encryption key so that the recipient could
// lookup correct key for decryption,
let reply_overhead = ReplySurbKeyDigestAlgorithm::output_size();
let expected_plaintext = fragment.serialized_size() + ACK_OVERHEAD + reply_overhead;
// the reason we're unwrapping (or rather 'expecting') here rather than handling the error
// more gracefully is that this error should never be reached as it implies incorrect chunking
let packet_size = PacketSize::get_type_from_plaintext(expected_plaintext)
.expect("the message has been incorrectly fragmented");
// this is not going to be accurate by any means. but that's the best estimation we can do
let expected_forward_delay = Delay::new_from_millis(
(self.average_packet_delay().as_millis() * self.num_mix_hops() as u128) as u64,
);
let fragment_identifier = fragment.fragment_identifier();
// create an ack
let surb_ack =
self.generate_surb_ack(packet_sender, fragment_identifier, topology, ack_key)?;
let ack_delay = surb_ack.expected_total_delay();
let packet_payload = NymsphinxPayloadBuilder::new(fragment, surb_ack)
.build_reply(reply_surb.encryption_key());
// the unwrap here is fine as the failures can only originate from attempting to use invalid payload lengths
// and we just very carefully constructed a (presumably) valid one
let (sphinx_packet, first_hop_address) =
reply_surb.apply_surb(packet_payload, packet_size).unwrap();
Ok(PreparedFragment {
// the round-trip delay is the sum of delays of all hops on the forward route as
// well as the total delay of the ack packet.
// we don't know the delays inside the reply surbs so we use best-effort estimation from our poisson distribution
total_delay: expected_forward_delay + ack_delay,
mix_packet: MixPacket::new(first_hop_address, sphinx_packet, Default::default()),
fragment_identifier,
})
}
/// Tries to convert this [`Fragment`] into a [`SphinxPacket`] that can be sent through the Nym mix-network,
/// such that it contains required SURB-ACK and public component of the ephemeral key used to
/// derive the shared key.
/// Also all the data, apart from the said public component, is encrypted with an ephemeral shared key.
/// This method can fail if the provided network topology is invalid.
/// It returns total expected delay as well as the [`SphinxPacket`] (including first hop address)
/// to be sent through the network.
///
/// The procedure is as follows:
/// For each fragment:
/// - compute SURB_ACK
/// - generate (x, g^x)
/// - compute k = KDF(remote encryption key ^ x) this is equivalent to KDF( dh(remote, x) )
/// - compute v_b = AES-128-CTR(k, serialized_fragment)
/// - compute vk_b = g^x || v_b
/// - compute sphinx_plaintext = SURB_ACK || g^x || v_b
/// - compute sphinx_packet = Sphinx(recipient, sphinx_plaintext)
fn prepare_chunk_for_sending(
&mut self,
fragment: Fragment,
topology: &NymTopology,
ack_key: &AckKey,
packet_sender: &Recipient,
packet_recipient: &Recipient,
) -> Result<PreparedFragment, NymTopologyError> {
// each plain or repliable packet (i.e. not a reply) attaches an ephemeral public key so that the recipient
// could perform diffie-hellman with its own keys followed by a kdf to re-derive
// the packet encryption key
let non_reply_overhead = encryption::PUBLIC_KEY_SIZE;
let expected_plaintext = fragment.serialized_size() + ACK_OVERHEAD + non_reply_overhead;
// the reason we're unwrapping (or rather 'expecting') here rather than handling the error
// more gracefully is that this error should never be reached as it implies incorrect chunking
let packet_size = PacketSize::get_type_from_plaintext(expected_plaintext)
.expect("the message has been incorrectly fragmented");
let fragment_identifier = fragment.fragment_identifier();
// create an ack
let surb_ack =
self.generate_surb_ack(packet_sender, fragment_identifier, topology, ack_key)?;
let ack_delay = surb_ack.expected_total_delay();
let packet_payload = NymsphinxPayloadBuilder::new(fragment, surb_ack)
.build_regular(self.rng(), packet_recipient.encryption_key());
// generate pseudorandom route for the packet
let hops = self.num_mix_hops();
let route =
topology.random_route_to_gateway(self.rng(), hops, packet_recipient.gateway())?;
let destination = packet_recipient.as_sphinx_destination();
// including set of delays
let delays =
delays::generate_from_average_duration(route.len(), self.average_packet_delay());
// create the actual sphinx packet here. With valid route and correct payload size,
// there's absolutely no reason for this call to fail.
let sphinx_packet = SphinxPacketBuilder::new()
.with_payload_size(packet_size.payload_size())
.build_packet(packet_payload, &route, &destination, &delays)
.unwrap();
// from the previously constructed route extract the first hop
let first_hop_address =
NymNodeRoutingAddress::try_from(route.first().unwrap().address).unwrap();
Ok(PreparedFragment {
// the round-trip delay is the sum of delays of all hops on the forward route as
// well as the total delay of the ack packet.
// note that the last hop of the packet is a gateway that does not do any delays
total_delay: delays.iter().take(delays.len() - 1).sum::<Delay>() + ack_delay,
mix_packet: MixPacket::new(first_hop_address, sphinx_packet, Default::default()),
fragment_identifier,
})
}
fn pad_and_split_message(
&mut self,
message: NymMessage,
packet_size: PacketSize,
) -> Vec<Fragment> {
let plaintext_per_packet = message.available_sphinx_plaintext_per_packet(packet_size);
message
.pad_to_full_packet_lengths(plaintext_per_packet)
.split_into_fragments(self.rng(), plaintext_per_packet)
}
}
/// Prepares the message that is to be sent through the mix network by attaching
/// an optional reply-SURB, padding it to appropriate length, encrypting its content,
/// and chunking into appropriate size [`Fragment`]s.
@@ -111,16 +305,6 @@ where
Ok(reply_surbs)
}
/// The procedure is as follows:
/// For each fragment:
/// - compute SURB_ACK
/// - generate (x, g^x)
/// - obtain key k from the reply-surb which was computed as follows:
/// k = KDF(remote encryption key ^ x) this is equivalent to KDF( dh(remote, x) )
/// - compute v_b = AES-128-CTR(k, serialized_fragment)
/// - compute vk_b = H(k) || v_b
/// - compute sphinx_plaintext = SURB_ACK || H(k) || v_b
/// - compute sphinx_packet by applying the reply surb on the sphinx_plaintext
pub fn prepare_reply_chunk_for_sending(
&mut self,
fragment: Fragment,
@@ -128,62 +312,13 @@ where
ack_key: &AckKey,
reply_surb: ReplySurb,
) -> Result<PreparedFragment, NymTopologyError> {
// each reply attaches the digest of the encryption key so that the recipient could
// lookup correct key for decryption,
let reply_overhead = ReplySurbKeyDigestAlgorithm::output_size();
let expected_plaintext = fragment.serialized_size() + ACK_OVERHEAD + reply_overhead;
let sender = self.sender_address;
// the reason we're unwrapping (or rather 'expecting') here rather than handling the error
// more gracefully is that this error should never be reached as it implies incorrect chunking
let packet_size = PacketSize::get_type_from_plaintext(expected_plaintext)
.expect("the message has been incorrectly fragmented");
// this is not going to be accurate by any means. but that's the best estimation we can do
let expected_forward_delay = Delay::new_from_millis(
(self.average_packet_delay.as_millis() * self.num_mix_hops as u128) as u64,
);
let fragment_identifier = fragment.fragment_identifier();
// create an ack
let surb_ack = self.generate_surb_ack(fragment_identifier, topology, ack_key)?;
let ack_delay = surb_ack.expected_total_delay();
let packet_payload = NymsphinxPayloadBuilder::new(fragment, surb_ack)
.build_reply(reply_surb.encryption_key());
// the unwrap here is fine as the failures can only originate from attempting to use invalid payload lengths
// and we just very carefully constructed a (presumably) valid one
let (sphinx_packet, first_hop_address) =
reply_surb.apply_surb(packet_payload, packet_size).unwrap();
Ok(PreparedFragment {
// the round-trip delay is the sum of delays of all hops on the forward route as
// well as the total delay of the ack packet.
// we don't know the delays inside the reply surbs so we use best-effort estimation from our poisson distribution
total_delay: expected_forward_delay + ack_delay,
mix_packet: MixPacket::new(first_hop_address, sphinx_packet, Default::default()),
fragment_identifier,
})
<Self as FragmentPreparer>::prepare_reply_chunk_for_sending(
self, fragment, topology, ack_key, reply_surb, &sender,
)
}
/// Tries to convert this [`Fragment`] into a [`SphinxPacket`] that can be sent through the Nym mix-network,
/// such that it contains required SURB-ACK and public component of the ephemeral key used to
/// derive the shared key.
/// Also all the data, apart from the said public component, is encrypted with an ephemeral shared key.
/// This method can fail if the provided network topology is invalid.
/// It returns total expected delay as well as the [`SphinxPacket`] (including first hop address)
/// to be sent through the network.
///
/// The procedure is as follows:
/// For each fragment:
/// - compute SURB_ACK
/// - generate (x, g^x)
/// - compute k = KDF(remote encryption key ^ x) this is equivalent to KDF( dh(remote, x) )
/// - compute v_b = AES-128-CTR(k, serialized_fragment)
/// - compute vk_b = g^x || v_b
/// - compute sphinx_plaintext = SURB_ACK || g^x || v_b
/// - compute sphinx_packet = Sphinx(recipient, sphinx_plaintext)
pub fn prepare_chunk_for_sending(
&mut self,
fragment: Fragment,
@@ -191,73 +326,27 @@ where
ack_key: &AckKey,
packet_recipient: &Recipient,
) -> Result<PreparedFragment, NymTopologyError> {
// each plain or repliable packet (i.e. not a reply) attaches an ephemeral public key so that the recipient
// could perform diffie-hellman with its own keys followed by a kdf to re-derive
// the packet encryption key
let non_reply_overhead = encryption::PUBLIC_KEY_SIZE;
let expected_plaintext = fragment.serialized_size() + ACK_OVERHEAD + non_reply_overhead;
let sender = self.sender_address;
// the reason we're unwrapping (or rather 'expecting') here rather than handling the error
// more gracefully is that this error should never be reached as it implies incorrect chunking
let packet_size = PacketSize::get_type_from_plaintext(expected_plaintext)
.expect("the message has been incorrectly fragmented");
let fragment_identifier = fragment.fragment_identifier();
// create an ack
let surb_ack = self.generate_surb_ack(fragment_identifier, topology, ack_key)?;
let ack_delay = surb_ack.expected_total_delay();
let packet_payload = NymsphinxPayloadBuilder::new(fragment, surb_ack)
.build_regular(&mut self.rng, packet_recipient.encryption_key());
// generate pseudorandom route for the packet
let route = topology.random_route_to_gateway(
&mut self.rng,
self.num_mix_hops,
packet_recipient.gateway(),
)?;
let destination = packet_recipient.as_sphinx_destination();
// including set of delays
let delays = delays::generate_from_average_duration(route.len(), self.average_packet_delay);
// create the actual sphinx packet here. With valid route and correct payload size,
// there's absolutely no reason for this call to fail.
let sphinx_packet = SphinxPacketBuilder::new()
.with_payload_size(packet_size.payload_size())
.build_packet(packet_payload, &route, &destination, &delays)
.unwrap();
// from the previously constructed route extract the first hop
let first_hop_address =
NymNodeRoutingAddress::try_from(route.first().unwrap().address).unwrap();
Ok(PreparedFragment {
// the round-trip delay is the sum of delays of all hops on the forward route as
// well as the total delay of the ack packet.
// note that the last hop of the packet is a gateway that does not do any delays
total_delay: delays.iter().take(delays.len() - 1).sum::<Delay>() + ack_delay,
mix_packet: MixPacket::new(first_hop_address, sphinx_packet, Default::default()),
fragment_identifier,
})
<Self as FragmentPreparer>::prepare_chunk_for_sending(
self,
fragment,
topology,
ack_key,
&sender,
packet_recipient,
)
}
/// Construct an acknowledgement SURB for the given [`FragmentIdentifier`]
fn generate_surb_ack(
pub fn generate_surb_ack(
&mut self,
fragment_id: FragmentIdentifier,
topology: &NymTopology,
ack_key: &AckKey,
) -> Result<SurbAck, NymTopologyError> {
SurbAck::construct(
&mut self.rng,
&self.sender_address,
ack_key,
fragment_id.to_bytes(),
self.average_ack_delay,
topology,
)
let sender = self.sender_address;
<Self as FragmentPreparer>::generate_surb_ack(self, &sender, fragment_id, topology, ack_key)
}
pub fn pad_and_split_message(
@@ -265,11 +354,27 @@ where
message: NymMessage,
packet_size: PacketSize,
) -> Vec<Fragment> {
let plaintext_per_packet = message.available_sphinx_plaintext_per_packet(packet_size);
<Self as FragmentPreparer>::pad_and_split_message(self, message, packet_size)
}
}
message
.pad_to_full_packet_lengths(plaintext_per_packet)
.split_into_fragments(&mut self.rng, plaintext_per_packet)
impl<R: CryptoRng + Rng> FragmentPreparer for MessagePreparer<R> {
type Rng = R;
fn rng(&mut self) -> &mut Self::Rng {
&mut self.rng
}
fn num_mix_hops(&self) -> u8 {
self.num_mix_hops
}
fn average_packet_delay(&self) -> Duration {
self.average_packet_delay
}
fn average_ack_delay(&self) -> Duration {
self.average_ack_delay
}
}
+2 -2
View File
@@ -263,7 +263,7 @@ mod message_receiver {
use nym_crypto::asymmetric::identity;
use nym_mixnet_contract_common::Layer;
use nym_topology::{gateway, mix, NymTopology};
use std::collections::HashMap;
use std::collections::BTreeMap;
// TODO: is it somehow maybe possible to move it to `topology` and have if conditionally
// available to other modules?
@@ -271,7 +271,7 @@ mod message_receiver {
/// tests requiring instance of topology.
#[allow(dead_code)]
fn topology_fixture() -> NymTopology {
let mut mixes = HashMap::new();
let mut mixes = BTreeMap::new();
mixes.insert(
1,
vec![mix::Node {
+1 -1
View File
@@ -11,4 +11,4 @@ pub use manager::{StatusReceiver, StatusSender, TaskClient, TaskManager};
#[cfg(not(target_arch = "wasm32"))]
pub use signal::wait_for_signal_and_error;
pub use spawn::spawn_with_report_error;
pub use spawn::{spawn, spawn_with_report_error};
+2 -2
View File
@@ -2,7 +2,7 @@ use crate::TaskClient;
use std::future::Future;
#[cfg(target_arch = "wasm32")]
pub(crate) fn spawn<F>(future: F)
pub fn spawn<F>(future: F)
where
F: Future<Output = ()> + 'static,
{
@@ -10,7 +10,7 @@ where
}
#[cfg(not(target_arch = "wasm32"))]
pub(crate) fn spawn<F>(future: F)
pub fn spawn<F>(future: F)
where
F: Future + Send + 'static,
F::Output: Send + 'static,
+14 -1
View File
@@ -2,7 +2,7 @@
// SPDX-License-Identifier: Apache-2.0
use nym_bin_common::version_checker;
use std::collections::HashMap;
use std::collections::{BTreeMap, HashMap};
use std::hash::Hash;
pub trait Versioned: Clone {
@@ -40,3 +40,16 @@ where
.collect()
}
}
impl<T, K, V> VersionFilterable<T> for BTreeMap<K, V>
where
K: Eq + Ord + Clone,
V: VersionFilterable<T>,
T: Versioned,
{
fn filter_by_version(&self, expected_version: &str) -> Self {
self.iter()
.map(|(k, v)| (k.clone(), v.filter_by_version(expected_version)))
.collect()
}
}
+22 -14
View File
@@ -42,6 +42,26 @@ pub struct Node {
}
impl Node {
pub fn parse_host(raw: &str) -> Result<NetworkAddress, GatewayConversionError> {
raw.parse()
.map_err(|err| GatewayConversionError::InvalidAddress {
value: raw.to_owned(),
source: err,
})
}
pub fn extract_mix_host(
host: &NetworkAddress,
mix_port: u16,
) -> Result<SocketAddr, GatewayConversionError> {
Ok(host.to_socket_addrs(mix_port).map_err(|err| {
GatewayConversionError::InvalidAddress {
value: host.to_string(),
source: err,
}
})?[0])
}
pub fn identity(&self) -> &NodeIdentity {
&self.identity_key
}
@@ -81,23 +101,11 @@ impl<'a> TryFrom<&'a GatewayBond> for Node {
type Error = GatewayConversionError;
fn try_from(bond: &'a GatewayBond) -> Result<Self, Self::Error> {
let host: NetworkAddress =
bond.gateway
.host
.parse()
.map_err(|err| GatewayConversionError::InvalidAddress {
value: bond.gateway.host.clone(),
source: err,
})?;
let host = Self::parse_host(&bond.gateway.host)?;
// try to completely resolve the host in the mix situation to avoid doing it every
// single time we want to construct a path
let mix_host = host.to_socket_addrs(bond.gateway.mix_port).map_err(|err| {
GatewayConversionError::InvalidAddress {
value: bond.gateway.host.clone(),
source: err,
}
})?[0];
let mix_host = Self::extract_mix_host(&host, bond.gateway.mix_port)?;
Ok(Node {
owner: bond.owner.as_str().to_owned(),
+38 -9
View File
@@ -1,14 +1,14 @@
// Copyright 2021-2022 - Nym Technologies SA <contact@nymtech.net>
// Copyright 2021-2023 - Nym Technologies SA <contact@nymtech.net>
// SPDX-License-Identifier: Apache-2.0
use crate::filter::VersionFilterable;
use log::warn;
use nym_mixnet_contract_common::mixnode::MixNodeDetails;
use nym_mixnet_contract_common::GatewayBond;
use nym_mixnet_contract_common::{GatewayBond, IdentityKeyRef, MixId};
use nym_sphinx_addressing::nodes::NodeIdentity;
use nym_sphinx_types::Node as SphinxNode;
use rand::{CryptoRng, Rng};
use std::collections::HashMap;
use std::collections::BTreeMap;
use std::convert::TryInto;
use std::fmt::{self, Display, Formatter};
use std::io;
@@ -96,16 +96,45 @@ pub type MixLayer = u8;
#[derive(Debug, Clone)]
pub struct NymTopology {
mixes: HashMap<MixLayer, Vec<mix::Node>>,
mixes: BTreeMap<MixLayer, Vec<mix::Node>>,
gateways: Vec<gateway::Node>,
}
impl NymTopology {
pub fn new(mixes: HashMap<MixLayer, Vec<mix::Node>>, gateways: Vec<gateway::Node>) -> Self {
pub fn new(mixes: BTreeMap<MixLayer, Vec<mix::Node>>, gateways: Vec<gateway::Node>) -> Self {
NymTopology { mixes, gateways }
}
pub fn mixes(&self) -> &HashMap<MixLayer, Vec<mix::Node>> {
pub fn from_detailed(
mix_details: Vec<MixNodeDetails>,
gateway_bonds: Vec<GatewayBond>,
) -> Self {
nym_topology_from_detailed(mix_details, gateway_bonds)
}
pub fn find_mix(&self, mix_id: MixId) -> Option<&mix::Node> {
for nodes in self.mixes.values() {
for node in nodes {
if node.mix_id == mix_id {
return Some(node);
}
}
}
None
}
pub fn find_mix_by_identity(&self, mixnode_identity: IdentityKeyRef) -> Option<&mix::Node> {
for nodes in self.mixes.values() {
for node in nodes {
if node.identity_key.to_base58_string() == mixnode_identity {
return Some(node);
}
}
}
None
}
pub fn mixes(&self) -> &BTreeMap<MixLayer, Vec<mix::Node>> {
&self.mixes
}
@@ -308,7 +337,7 @@ pub fn nym_topology_from_detailed(
mix_details: Vec<MixNodeDetails>,
gateway_bonds: Vec<GatewayBond>,
) -> NymTopology {
let mut mixes = HashMap::new();
let mut mixes = BTreeMap::new();
for bond in mix_details
.into_iter()
.map(|details| details.bond_information)
@@ -389,7 +418,7 @@ mod converting_mixes_to_vec {
..node1.clone()
};
let mut mixes: HashMap<MixLayer, Vec<mix::Node>> = HashMap::new();
let mut mixes: BTreeMap<MixLayer, Vec<mix::Node>> = BTreeMap::new();
mixes.insert(1, vec![node1, node2]);
mixes.insert(2, vec![node3]);
@@ -405,7 +434,7 @@ mod converting_mixes_to_vec {
#[test]
fn returns_an_empty_vec() {
let topology = NymTopology::new(HashMap::new(), vec![]);
let topology = NymTopology::new(BTreeMap::new(), vec![]);
let mixvec = topology.mixes_as_vec();
assert!(mixvec.is_empty());
}
+24 -14
View File
@@ -42,6 +42,28 @@ pub struct Node {
pub version: String,
}
impl Node {
pub fn parse_host(raw: &str) -> Result<NetworkAddress, MixnodeConversionError> {
raw.parse()
.map_err(|err| MixnodeConversionError::InvalidAddress {
value: raw.to_owned(),
source: err,
})
}
pub fn extract_mix_host(
host: &NetworkAddress,
mix_port: u16,
) -> Result<SocketAddr, MixnodeConversionError> {
Ok(host.to_socket_addrs(mix_port).map_err(|err| {
MixnodeConversionError::InvalidAddress {
value: host.to_string(),
source: err,
}
})?[0])
}
}
impl filter::Versioned for Node {
fn version(&self) -> String {
self.version.clone()
@@ -62,23 +84,11 @@ impl<'a> TryFrom<&'a MixNodeBond> for Node {
type Error = MixnodeConversionError;
fn try_from(bond: &'a MixNodeBond) -> Result<Self, Self::Error> {
let host: NetworkAddress =
bond.mix_node
.host
.parse()
.map_err(|err| MixnodeConversionError::InvalidAddress {
value: bond.mix_node.host.clone(),
source: err,
})?;
let host = Self::parse_host(&bond.mix_node.host)?;
// try to completely resolve the host in the mix situation to avoid doing it every
// single time we want to construct a path
let mix_host = host
.to_socket_addrs(bond.mix_node.mix_port)
.map_err(|err| MixnodeConversionError::InvalidAddress {
value: bond.mix_node.host.clone(),
source: err,
})?[0];
let mix_host = Self::extract_mix_host(&host, bond.mix_node.mix_port)?;
Ok(Node {
mix_id: bond.mix_id,
+74 -1
View File
@@ -15,7 +15,7 @@ macro_rules! console_log {
($($t:tt)*) => ($crate::log(&format_args!($($t)*).to_string()))
}
// will cause messages to be written as if console.warm("...") was called
// will cause messages to be written as if console.warn("...") was called
#[macro_export]
macro_rules! console_warn {
($($t:tt)*) => ($crate::warn(&format_args!($($t)*).to_string()))
@@ -50,3 +50,76 @@ pub async fn sleep(ms: i32) -> Result<(), JsValue> {
js_fut.await?;
Ok(())
}
/// A helper that construct a `JsValue` containing an error with the provided message.
pub fn simple_js_error<S: AsRef<str>>(message: S) -> JsValue {
let js_error = js_sys::Error::new(message.as_ref());
JsValue::from(js_error)
}
#[macro_export]
macro_rules! js_error {
($($t:tt)*) => {{
let js_error = js_sys::Error::new(&format!($($t)*));
wasm_bindgen::JsValue::from(js_error)
}}
}
/// Maps provided `Result`'s inner values into a pair of `JsValue` that can be returned
/// inside a promise (and in particular from inside `future_to_promise`)
pub fn into_promise_result<T, E>(res: Result<T, E>) -> Result<JsValue, JsValue>
where
T: Into<JsValue>,
E: Into<JsValue>,
{
res.map(Into::into).map_err(Into::into)
}
pub fn map_promise_err<T, E>(res: Result<T, E>) -> Result<T, JsValue>
where
E: Into<JsValue>,
{
res.map_err(Into::into)
}
pub trait PromisableResult {
fn into_promise_result(self) -> Result<JsValue, JsValue>;
}
// this should probably get renamed : )
pub trait PromisableResultError {
type Ok;
fn map_promise_err(self) -> Result<Self::Ok, JsValue>;
}
impl<T, E> PromisableResult for Result<T, E>
where
T: Into<JsValue>,
E: Into<JsValue>,
{
fn into_promise_result(self) -> Result<JsValue, JsValue> {
into_promise_result(self)
}
}
impl<T, E> PromisableResultError for Result<T, E>
where
E: Into<JsValue>,
{
type Ok = T;
fn map_promise_err(self) -> Result<T, JsValue> {
map_promise_err(self)
}
}
#[macro_export]
macro_rules! check_promise_result {
( $x:expr ) => {
match $crate::PromisableResultError::map_promise_err($x) {
Ok(r) => r,
Err(err) => return js_sys::Promise::reject(&err),
}
};
}
@@ -4,7 +4,7 @@
use nym_sdk::mixnet;
use nym_topology::mix::Layer;
use nym_topology::{mix, NymTopology};
use std::collections::HashMap;
use std::collections::BTreeMap;
#[tokio::main]
async fn main() {
@@ -15,7 +15,7 @@ async fn main() {
let starting_topology = client.read_current_topology().await.unwrap();
// but we don't like our default topology, we want to use only those very specific, hardcoded, nodes:
let mut mixnodes = HashMap::new();
let mut mixnodes = BTreeMap::new();
mixnodes.insert(
1,
vec![mix::Node {