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index.js
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/** @format */
// Copyright 2022 Elijah Bodden
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file or at
// https://opensource.org/licenses/MIT.
"use strict";
var CONFIG = {};
const allICEServers = [
{
urls: "stun:membranexus.com"
},
{
urls: "turn:membranexus.com",
username: "membrane",
credential: "membrane"
}
];
const STUNOnly = [
{
urls: "stun:membranexus.com"
}
];
/*
! NB !
Do not, under any circumstances, and at penalty of network integrity, modify the following:
- rtc\Icepresets\binaryType
- communication\specHiddenAliasAttributes\*
- constants\radix36Charset
- rtc\communication\hiddenAlias
*/
var defaultConfig = {
rtc: {
ICEpresets: {
iceServers: [
{
urls: "stun:membranexus.com"
},
{
urls: "turn:membranexus.com",
username: "membrane",
credential: "membrane"
}
],
iceCandidatePoolSize: 255,
},
ICEGatheringMaxLatency: 10000,
defaultChannelLabel: "channel",
channelOptions: {
negotiated: true,
id: 0,
ordered: true,
},
channelID: undefined,
binaryType: "arraybuffer",
},
communication: {
defaultUnknownPublicAlias: undefined,
basicPropogationInterval: 100,
publicAlias: "",
specHiddenAliasAttributes: {
len: 9,
},
hiddenAlias: Math.random().toString(36).slice(2, 11),
packageArgs: {
consumable: { required: ["raw"], optional: [] },
gossip: { required: ["type", "block"], optional: ["!*"] },
mapFetch: { required: [], optional: [] },
mapReturn: { required: ["map"], optional: [] },
routeImperative: {
required: ["SDP", "sender", "destination", "routeID"],
optional: ["desiredPermissions", "!*"],
},
invokerIntroduction: {
required: ["hiddenAlias", "isOriented"],
optional: ["publicAlias"],
},
reciprocalAlignment: {
required: ["hiddenAlias"],
optional: ["publicAlias", "map"],
},
routeInaccessible: {
required: ["routeID", "pointOfFailure", "destination"],
optional: ["!"],
},
routeRejected: { required: ["destination", "routeID"], optional: ["!*"] },
routeAccepted: {
required: ["SDP", "destination", "routeID"],
optional: ["!*"],
},
permissionEscalationRequest: { required: ["level"], optional: ["!*"] },
permissionEscalationResponse: { required: ["status"], optional: ["!*"] },
forcefulDeauth: { required: [], optional: ["!*"] },
},
allowNonStandardParsers: false,
mapImportTimeout: 10000,
moderateMapInstabilityTolerance: true,
arbitraryPeerRouteTimeout: 100000000,
routeAcceptHeuristic: async function (pkg) {
return true;
},
},
constants: {
defaultPropagationIterMod: 1,
radix36Charset: [
"0", "1", "2", "3", "4", "5",
"6", "7", "8", "9", "a", "b",
"c", "d", "e", "f", "g", "h",
"i", "j", "k", "l", "m", "n",
"o", "p", "q", "r", "s", "t",
"u", "v", "w", "x", "y", "z",
],
defaultEventHandlingMechanismTimeout: 100000,
violationWeightPenalties: {
pointOfRouteFailure: 10,
acquaintedInitAttempt: 10,
invalidMessage: 15,
invalidAliasInRoutingMap: 20,
failedGossip: 25,
genericUncaughtError: 35,
initSequenceError: 100,
invalidSDP: 100,
},
configLoadFunction: async function () {
return JSON.parse(window.localStorage.config ?? "{}");
},
},
serverLink: {
//Change to "wss://..." for ssl-secured sockets
initBindURL: `ws://${window.location.hostname}:8777/bind?originatingSDP=*`,
reconnectURL: `ws://${window.location.hostname}:8777/reconnect`,
reconnectInterval: 5000,
defaultNoResponseTimeout: 20000,
},
UI: {
renderUnfamiliarPublicAliases: true,
},
};
var mostRecentServerHeartbeat = NaN;
var effectiveFirstVisit = false;
const livePeers = {};
const authPeers = [];
const currentlyAuthenticating = [];
var serverHardRestart;
var serverTabCloseAlert;
const pubAliasLookup = {};
const hiddenAliasLookup = {};
const pubAliasUnparser = {};
const publicAliasTallies = {};
const initialReferenceLedger = {};
const HTMLEscape = document.createElement("textarea");
HTMLEscape.setAttribute("style", "visibility : hidden; left -10000px; position: fixed;");
var eventHandler;
var networkMap;
var gossipTransport;
var topologyTransport;
var routingTableTransport;
function addAuthPeer(peer) {
if (typeof peer != "string") return;
if (currentlyAuthenticating.includes(peer))
currentlyAuthenticating.splice(currentlyAuthenticating.indexOf(peer), 1);
authPeers.push(peer);
eventHandler.dispatch("authPeersUpdated", ["addition", peer]);
}
function deleteAuthPeer(peer) {
if (authPeers.indexOf(peer) == -1) return;
authPeers.splice(authPeers.indexOf(peer), 1);
eventHandler.dispatch("authPeersUpdated", ["deletion", peer]);
}
async function onAuthPeersUpdated(callback) {
eventHandler.onReceipt("authPeersUpdated", callback);
}
async function deauthPeer(peer, isPredicator) {
if (!authPeers.includes(peer)) return;
if (isPredicator) {
livePeers[peer].transport.channel.standardSend("forcefulDeauth");
deleteAuthPeer(peer);
} else {
deleteAuthPeer(peer);
obviatePeerError(peer);
}
}
async function loadConfig(defaultConfig, provisionFunction) {
checkForTypeErrors([{ defaultConfig }, { provisionFunction }], [["object"], ["function", "undefined"]]);
if (!provisionFunction) {
CONFIG = defaultConfig;
return;
}
const provided =
provisionFunction.constructor.name === "AsyncFunction"
? await provisionFunction()
: provisionFunction();
checkForTypeErrors([{ provided }], [["object"]]);
var loadableConfig = defaultConfig;
for (let i in provided) {
const referenceChain = i.split(".");
const deepestProperty = referenceChain.slice(-1);
const defaultPrefParent = referenceChain.slice(0, -1).reduce((previous, current) => {
return previous[current];
}, loadableConfig);
if (typeof defaultPrefParent[deepestProperty] === typeof provided[i]) {
defaultPrefParent[deepestProperty] = provided[i];
}
}
CONFIG = loadableConfig;
}
WebSocket.prototype.crudeSend = async function (type, typeArgs) {
checkForTypeErrors([{ type }, { typeArgs }], [["string"], ["object", "undefined"]]);
switch (type) {
case "heartbeat":
this.send(JSON.stringify(["heartbeat"]));
mostRecentServerHeartbeat = +new Date();
break;
case "reportNode":
checkForTypeErrors([{ "typeArgs.nodeID": typeArgs.nodeID }], [["string"]]);
this.send(JSON.stringify(["reportNode", typeArgs.nodeID]));
break;
case "returnSDP":
checkForTypeErrors(
[{ "typeArgs.SDP": typeArgs.SDP }, { "typeArgs.reciprocalID": typeArgs.reciprocalID }],
[["string"], ["string"]]
);
this.send(JSON.stringify(["returnSDP", typeArgs.SDP, typeArgs.reciprocalID]));
break;
case "ignoreSDPRequest":
checkForTypeErrors([{ "typeArgs.reciprocalID": typeArgs.reciprocalID }], [["string"]]);
this.send(JSON.stringify(["ignoreSDPRequest", typeArgs.reciprocalID]));
break;
default:
throw new Error(
`unable to communicate websocket message of type "${type}": no specified bundling method matches the criterion.`
);
}
};
RTCDataChannel.prototype.standardSend = async function (type, messageParams) {
checkForTypeErrors([{ type }, { messageParams }], [["string"], ["object", "undefined"]]);
const packaged = JSON.stringify(messageParams ? [type, messageParams] : [type]);
this.send(CONFIG.rtc.binaryType === "arrayBuffer" ? new TextEncoder().encode(packaged) : packaged);
};
class eventHandlingMechanism {
constructor() {
this.handlerFrame = {};
this.dispatchWatchers = {};
}
onReceipt(signalIdentifier, callback) {
if (!(signalIdentifier in this.handlerFrame)) {
this.handlerFrame[signalIdentifier] = [];
}
this.handlerFrame[signalIdentifier].push(callback);
}
dispatch(signalIdentifier, externalDetail) {
if (this.handlerFrame[signalIdentifier]) {
this.handlerFrame[signalIdentifier].forEach((method) => {
method(signalIdentifier, externalDetail, this.handlerFrame[signalIdentifier]);
});
}
if (this.dispatchWatchers[signalIdentifier]) {
this.dispatchWatchers[signalIdentifier].forEach((watcher) => {
watcher.resolve({
signalIdentifier: signalIdentifier,
externalDetail: externalDetail,
});
});
delete this.dispatchWatchers[signalIdentifier];
}
}
forceReject(signalIdentifier, reason) {
if (this.dispatchWatchers[signalIdentifier]) {
this.dispatchWatchers[signalIdentifier].forEach((watcher) => {
watcher.reject(reason);
});
delete this.dispatchWatchers[signalIdentifier];
}
}
async acquireExpectedDispatch(dispatchIdentifier, timeout) {
this.dispatchWatchers[dispatchIdentifier] = this.dispatchWatchers[dispatchIdentifier]
? this.dispatchWatchers[dispatchIdentifier]
: [];
var rejectGeneratedPromise;
var resolveGeneratedPromise;
let index =
this.dispatchWatchers[dispatchIdentifier].push({
promise: new Promise((resolve, reject) => {
let hasResolved = false;
let hasRejected = false;
resolveGeneratedPromise = async (resolution) => {
if (hasRejected) return;
resolve(resolution);
hasResolved = true;
};
rejectGeneratedPromise = async (rejection) => {
if (hasResolved) return;
reject(rejection);
hasRejected = true;
};
setTimeout(() => {
if (!hasResolved)
reject(
`Dispatch listener promise for the identifier ${dispatchIdentifier} timed out after ${
timeout ??
CONFIG?.constants?.defaultEventHandlingMechanismTimeout ??
100000
}ms`
);
}, timeout ?? CONFIG?.constants?.defaultEventHandlingMechanismTimeout ?? 100000);
}),
reject: rejectGeneratedPromise,
resolve: resolveGeneratedPromise,
}) - 1;
return await this.dispatchWatchers[dispatchIdentifier][index].promise;
}
async flushExpectedDispatches() {
for (let i in this.dispatchWatchers) {
for (let j = 0; j < this.dispatchWatchers[i].length; j++) {
this.dispatchWatchers[i][j].resolve({
signalIdentifier: i,
externalDetail: "flushed",
});
}
delete this.dispatchWatchers[i];
}
}
}
eventHandler = new eventHandlingMechanism();
class AbstractMap {
constructor() {
this.adjacencyList = {};
this.nodes = {};
this.export = undefined;
this.distances = undefined;
this.previous = undefined;
this.computationRefreshed = false;
this.exportRefreshed = false;
}
async onUpdate(callback) {
eventHandler.onReceipt("abstractMapUpdate", callback);
}
async triggerUpdate(method, relevantInformation) {
eventHandler.dispatch("abstractMapUpdate", [method, relevantInformation]);
}
async importList(raw, provider) {
try {
checkForTypeErrors([{ raw }, { provider }], [["string"], ["string"]]);
var mappedList = JSON.parse(raw);
if (!Array.isArray(mappedList))
throw new TypeError(`the provided JSON-parsed object (${raw} raw) is not an array`);
Object.keys(mappedList[0]).reduce((expendedKeys, currentKey) => {
expendedKeys.push(currentKey);
try {
verifyHiddenAlias(mappedList[0][currentKey][0]);
addAlias(mappedList[0][currentKey][2], mappedList[0][currentKey][0]);
this.addNode(mappedList[0][currentKey][0], mappedList[0][currentKey][1]);
} catch (error) {
if (CONFIG.communication.moderateMapInstabilityTolerance) {
shiftNodeWeight(
provider,
CONFIG.constants.violationWeightPenalties.invalidAliasInRoutingMap
);
this.removeNode(mappedList[0][currentKey][0]);
deleteAlias(mappedList[0][currentKey][0]);
delete mappedList[0][currentKey];
return;
} else {
expendedKeys.forEach((key) => {
this.removeNode(key);
deleteAlias(key);
});
throw new Error(
`sumarily terminating map import: provided key ${currentKey} could not be admitted because ${error}`
);
}
}
return expendedKeys;
}, []);
for (let i in mappedList[1]) {
mappedList[1][i].forEach((subKey) => {
if (!(mappedList[0]?.[subKey]?.[0] && mappedList[0]?.[i]?.[0])) return;
this.addEdge(mappedList[0][i][0], mappedList[0][subKey][0]);
});
}
} catch (error) {
if (livePeers[provider]) peerConnection.prototype.close(livePeers[provider]);
return;
}
eventHandler.dispatch("mapImportSuccessful");
this.export = raw;
this.exportRefreshed = true;
}
addEdge(i, j) {
checkForTypeErrors(
[{ i }, { j }],
[
["string", "number"],
["string", "number"],
]
);
var nodePresences = [Object.keys(this.nodes).includes(i), Object.keys(this.nodes).includes(j)];
if (!(nodePresences[0] && nodePresences[1]))
throw new Error(
`Unable to create a representative edge between the nodes aliased ${i} and ${j} as ${
nodePresences[0] ^ nodePresences[1]
? 'there exists no node "' + [i, j][nodePresences.indexOf(false)] + '"'
: "neither may be found"
} within the present networkMap`
);
this.adjacencyList[i][j] = this.nodes[j];
this.adjacencyList[j][i] = this.nodes[i];
this.triggerUpdate("addEdge", [i, j]);
this.exportRefreshed = false;
}
addNode(key, weight) {
checkForTypeErrors(
[{ key }, { weight }],
[
["string", "number"],
["undefined", "number"],
]
);
this.adjacencyList[key] = {};
this.setweight(key, weight ?? 1);
this.triggerUpdate("addNode", key);
this.exportRefreshed = false;
}
removeNode(key) {
try {
checkForTypeErrors([{ key }], [["string", "number"]]);
} catch {
return;
}
if (!(this.nodes[key] || this.adjacencyList[key])) return;
delete this.nodes[key];
delete this.adjacencyList[key];
this.triggerUpdate("removeNode", key);
this.exportRefreshed = false;
}
removeEdge(i, j) {
try {
checkForTypeErrors(
[{ i }, { j }],
[
["string", "number"],
["string", "number"],
]
);
} catch (error) {
return;
}
if (!(this.adjacencyList[i]?.[j] || this.adjacencyList[j]?.[i])) {
return;
}
delete this.adjacencyList[i]?.[j];
delete this.adjacencyList[j]?.[i];
this.triggerUpdate("removeEdge", [i, j]);
this.exportRefreshed = false;
}
async exportList() {
var temporaryNodeMap = {};
var persistentNodeMap = {};
var mapped = {};
var iters = 0;
for (let alias in this.nodes) {
let shorthand = iters.toString(36);
persistentNodeMap[shorthand] =
alias === CONFIG.communication.hiddenAlias
? [alias, this.nodes[alias].weight, CONFIG.communication.publicAlias]
: [alias, this.nodes[alias].weight, initialReferenceLedger[alias]];
mapped[shorthand] = this.adjacencyList[alias];
temporaryNodeMap[alias] = iters.toString(36);
iters++;
}
for (let key in mapped) {
let subkeys = [];
for (let subKey in mapped[key]) {
subkeys.push(temporaryNodeMap[subKey]);
}
mapped[key] = subkeys;
}
this.export = JSON.stringify([persistentNodeMap, mapped]);
this.exportRefreshed = true;
return this.export;
}
async optionalExport() {
const elected = !this.exportRefreshed ? await this.exportList() : this.export;
return elected ? elected : "none";
}
async precomputeRoutes(source) {
checkForTypeErrors([{ source }], [["string", "number"]]);
if (!Object.keys(this.nodes).includes(source))
throw new Error(
`Requested source node (${source}) is not present within AbstractMap.__instance__.nodes`
);
var dist = {};
var prev = {};
var queue = new crudeQueue();
dist[source] = 0;
Object.keys(this.adjacencyList).forEach((node) => {
if (node !== source) {
prev[node] = undefined;
dist[node] = Infinity;
}
queue.add(node, dist[node]);
});
while (Object.keys(queue.queue) != "") {
var current = queue.extractMin();
Object.keys(this.adjacencyList[current]).forEach((neighbor) => {
if (!queue.cachedPriorities[neighbor]) return;
let alt = dist[current] + this.nodes[neighbor].weight;
if (alt < dist[neighbor] && dist[current] != Infinity) {
dist[neighbor] = alt;
prev[neighbor] = current;
queue.modifyPriority(neighbor, alt);
}
});
}
this.distances = dist;
this.previous = prev;
this.computationRefreshed = true;
}
async findNextHop(currentNode, endNode) {
checkForTypeErrors(
[{ currentNode }, { endNode }],
[
["string", "number"],
["string", "number"],
]
);
await this.precomputeRoutes(currentNode);
if (!(Object.keys(this.nodes).includes(currentNode) && Object.keys(this.nodes).includes(endNode))) {
throw new Error(
`The requested route <${currentNode} -> ${endNode}> is not possible in the current map (one of both of these members does not exist).`
);
}
var node = endNode;
var lastNode = undefined;
while (node != currentNode) {
lastNode = node;
if (this.distances[node] == Infinity)
throw new Error(
`The requested route <${currentNode} -> ${endNode}> is not possible in the current map (there exists no path between intermediary node ${node} and the current node).`
);
node = this.previous[node];
}
return lastNode;
}
async reload() {
this.adjacencyList = {};
this.nodes = {};
this.export = undefined;
this.distances = undefined;
this.previous = undefined;
this.computationRefreshed = false;
this.exportRefreshed = false;
this.triggerUpdate("totalWipe");
}
async setweight(key, weight) {
this.nodes[key] = { weight };
}
}
networkMap = new AbstractMap();
networkMap.onUpdate((_sig, externalDetail) => {
if (Object.keys(livePeers).length != 1 || externalDetail[0] != "addNode") return;
setTimeout(() => {
peerConnection.prototype.stabilizeLink().catch(() => {});
}, 500);
});
class crudeQueue {
constructor() {
this.cachedPriorities = {};
this.queue = {};
}
add(item, priority) {
checkForTypeErrors([{ item }, { priority }], [["number", "string"], ["number"]]);
this.cachedPriorities[item] = priority;
if (!this.queue[priority]) {
this.queue[priority] = [];
}
this.queue[priority].push(item);
}
extractMin() {
if (Object.keys(this.queue) == "")
throw new Error(`unable to extract key of minimum priority, queue is empty`);
const index = Math.min(...Object.keys(this.queue));
const extracted = this.queue[index].pop();
delete this.cachedPriorities[extracted];
if (this.queue[index] == "") delete this.queue[index];
return extracted;
}
modifyPriority(item, newPriority) {
checkForTypeErrors(
[
{ item },
{ newPriority },
{ "this.queue[oldPriority]": this.queue[this.cachedPriorities[item]] },
],
[["number", "string"], ["number"], ["object"]]
);
this.queue[this.cachedPriorities[item]].splice(
this.queue[this.cachedPriorities[item]].indexOf(item),
1
);
if (this.queue[this.cachedPriorities[item]] == "") delete this.queue[this.cachedPriorities[item]];
this.add(item, newPriority);
}
}
async function addLivePeer(ref, value) {
livePeers[ref] = value;
eventHandler.dispatch("livePeersUpdated");
}
async function onLivePeersUpdated(callback) {
eventHandler.onReceipt("livePeersUpdated", callback);
}
async function deleteLivePeer(ref) {
delete livePeers[ref];
if (authPeers.includes(ref)) deleteAuthPeer(ref);
eventHandler.dispatch("livePeersUpdated");
}
class peerConnection {
constructor(permissions) {
checkForTypeErrors([{ permissions }], [["string", "undefined"]]);
this.closed = false;
this.acquainted = false;
this.voluntary = true;
this.peerData = {
hiddenAlias: undefined,
};
this.permissions = permissions ?? "standard";
this.isAuth = permissions == "advanced";
this.internalUID = `UID : ${Math.random().toString(36).slice(2, 11)}`;
this.transport = (() => {
let buffer = {};
buffer.connection = new RTCPeerConnection(CONFIG.rtc.ICEpresets);
buffer.channel = buffer.connection.createDataChannel(
CONFIG.rtc.defaultChannelLabel,
CONFIG.rtc.channelOptions
);
buffer.channel.binaryType = CONFIG.rtc.binaryType;
buffer.channel.onclose = function () {
if (this.closed) return;
peerConnection.prototype.close(this);
}.bind(this);
buffer.channel.onopen = function () {
this.announcePeer();
if (this.voluntary) {
this.transport.channel.standardSend("invokerIntroduction", {
hiddenAlias: CONFIG.communication.hiddenAlias,
isOriented: Object.keys(networkMap.nodes) != "",
publicAlias: CONFIG.communication.publicAlias,
});
if (Object.keys(networkMap.nodes) == "") primeForMapImport(this.internalUID);
}
}.bind(this);
buffer.channel.onmessage = async function (event) {
peerConnection.prototype.handleMessage
.bind(this)(event.data)
.catch((error) => {
if (this.peerData.hiddenAlias) {
shiftNodeWeight(this.peerData.hiddenAlias, CONFIG.constants.genericUncaughtError);
}
throw error;
});
}.bind(this);
return buffer;
})();
}
async onpeer(cb) {
eventHandler.onReceipt(`peerEstablished | ${this.internalUID}`, cb);
}
async announcePeer() {
eventHandler.dispatch(`peerEstablished | ${this.internalUID}`);
}
async onConsumableAuth(cb) {
eventHandler.onReceipt(`consumableAuth | ${this.internalUID}`, cb);
}
async dispatchConsumableAuth(consumableRaw) {
eventHandler.dispatch(`consumableAuth | ${this.internalUID}`, escapeHTML(consumableRaw));
}
async makeOffer() {
if (this.transport.connection.remoteDescription || this.transport.connection.localDescription)
throw new Error(
"This connection has already begun another ICE exchange sequence, and is, therefore, unable to generate a new local description."
);
await this.transport.connection.setLocalDescription(await this.transport.connection.createOffer());
const concurrentICEDifferentiator = Math.floor(Math.random() * 1000);
this.transport.connection.onicecandidate = async ({ candidate }) => {
if (candidate) return;
eventHandler.dispatch(`exhaustedICECandidates | ${concurrentICEDifferentiator}`);
};
await eventHandler.acquireExpectedDispatch(
`exhaustedICECandidates | ${concurrentICEDifferentiator}`,
CONFIG.rtc.ICEGatheringMaxLatency
);
return this.transport.connection.localDescription;
}
async receiveOffer(SDP) {
checkForTypeErrors([{ SDP }], [["object"]]);
if (this.transport.connection.remoteDescription || this.transport.connection.localDescription)
throw new Error(
"This connection has already begun another ICE exchange sequence, and is, therefore, unable to generate a new remote description."
);
this.voluntary = false;
await this.transport.connection.setRemoteDescription(SDP);
await this.transport.connection.setLocalDescription(await this.transport.connection.createAnswer());
const concurrentICEDifferentiator = Math.floor(Math.random() * 1000);
this.transport.connection.onicecandidate = async ({ candidate }) => {
if (candidate) return;
eventHandler.dispatch(`exhaustedICECandidates | ${concurrentICEDifferentiator}`);
};
await eventHandler.acquireExpectedDispatch(
`exhaustedICECandidates | ${concurrentICEDifferentiator}`,
CONFIG.rtc.ICEGatheringMaxLatency
);
return this.transport.connection.localDescription;
}
async receiveAnswer(SDP) {
if (typeof SDP === "string") SDP = JSON.parse(SDP);
checkForTypeErrors([{ SDP }], [["object"]]);
if (this.transport.connection.remoteDescription)
throw new Error(
"This connection already holds a remote description, and therefore, cannot overwrite it with a new external description."
);
this.transport.connection.setRemoteDescription(SDP);
}
async requestPermissionEscalation(level) {
this.transport.channel.standardSend("permissionEscalationRequest", {
level: level ?? "advanced",
});
eventHandler
.acquireExpectedDispatch(
`permissionEscalationResponse|${this.internalUID}`,
CONFIG.communication.arbitraryPeerRouteTimeout
)
.then(
(value) => {
if (value.externalDetail.status) {
this.permissions = level ?? "advanced";
if (this.permissions === "advanced" && !authPeers.includes(this.peerData.hiddenAlias))
addAuthPeer(this.peerData.hiddenAlias);
indicateRouteAccepted(this.peerData.hiddenAlias);
} else {
announceAuthRejected(this.peerData.hiddenAlias);
obviatePeerError(this.peerData.hiddenAlias);
}
},
() => {
announceAuthRejected(this.peerData.hiddenAlias);
obviatePeerError(this.peerData.hiddenAlias);
}
);
}
async makeDefiniteRoute(destination, desiredPermissions) {
if (Object.keys(livePeers).includes(destination))
throw new Error(`Direct route already exists to requested node ${destination}`);
const generatedChannel = new peerConnection();
const SDP = JSON.stringify(await generatedChannel.makeOffer());
const routeID = Math.random().toString().slice(2, 12);
var result;
try {
await detatchedRoute(destination, "routeImperative", {
SDP,
sender: CONFIG.communication.hiddenAlias,
destination,
desiredPermissions,
routeID,
});
result = await Promise.race(
["routeInaccessible", "routeAccepted", "routeRejected"].map((outcome) => {
return eventHandler.acquireExpectedDispatch(
`${outcome}|${routeID}`,
CONFIG.communication.arbitraryPeerRouteTimeout
);
})
);
} catch (error) {
result = { signalIdentifier: "routeInaccessible" };
}
switch (result.signalIdentifier.split("|")[0]) {
case "routeInaccessible":
peerConnection.prototype.close(generatedChannel);
if (desiredPermissions == "advanced") announceAuthRejected(destination);
if (result.externalDetail?.pointOfFailure) {
shiftNodeWeight(
result.externalDetail.pointOfFailure,
CONFIG.constants.violationWeightPenalties.pointOfRouteFailure
);
}
break;
case "routeRejected":
peerConnection.prototype.close(generatedChannel);
if (desiredPermissions == "advanced") announceAuthRejected(destination);
obviatePeerError(destination);
break;
case "routeAccepted":
try {
generatedChannel.receiveAnswer(result.externalDetail.SDP);
} catch {
obviatePeerError(destination);
return;
}
if (desiredPermissions === "advanced") {
addAuthPeer(destination);
}
indicateRouteAccepted(destination);
}
}
async comprehendProspectiveRoute(routePackage) {
var connection = new peerConnection(routePackage.desiredPermissions);
try {
var SDP = await connection.receiveOffer(JSON.parse(routePackage.SDP));
} catch {
if (routePackage.sender) {
shiftNodeWeight(routePackage.sender, CONFIG.constants.violationWeightPenalties.invalidSDP);
}
this.rejectProspectiveRoute(routePackage, connection);
return;
}
if (
CONFIG.communication.routeAcceptHeuristic.constructor.name === "AsyncFunction"
? await CONFIG.communication.routeAcceptHeuristic(routePackage)
: CONFIG.communication.routeAcceptHeuristic(routePackage)
) {
this.acceptProspectiveRoute(routePackage, SDP, connection);
} else {
this.rejectProspectiveRoute(routePackage, connection);
}
}
async rejectProspectiveRoute(routePackage, allocatedChannel) {
allocatedChannel.transport.connection.close();
detatchedRoute(routePackage.sender, "routeRejected", {
destination: routePackage.sender,
routeID: routePackage.routeID,
}).catch(() => {});
}
async acceptProspectiveRoute(routePackage, SDP, allocatedChannel) {
eventHandler.acquireExpectedDispatch(`peerEstablished | ${allocatedChannel.internalUID}`, 1000).then(
() => {
indicateRouteAccepted(routePackage.sender);
},
() => {
obviatePeerError(routePackage.sender);
allocatedChannel.transport.connection.close();
}
);
await detatchedRoute(routePackage.sender, "routeAccepted", {
SDP,
destination: routePackage.sender,
routeID: routePackage.routeID,
});
}
async handleMessage(message) {
const parsed = JSON.parse(
CONFIG.rtc.binaryType === "arrayBuffer" ? new TextDecoder().decode(message) : message
);
checkForTypeErrors([{ parsed }], [["object"]]);
if (
!(await peerConnection.prototype.weaklyValidateMessage(parsed)) ||
(!authPeers.includes(this.peerData?.hiddenAlias ?? Math.random().toString()) &&
parsed[0] === "consumable")
) {
if (this.peerData.peer) {
shiftNodeWeight(this.peerData.peer, CONFIG.constants.violationWeightPenalties.invalidMessage);
}
return;
}
switch (parsed[0]) {
case "consumable":
if (!this.peerData?.hiddenAlias) return;
this.dispatchConsumableAuth(escapeHTML(parsed[1].raw));
break;
case "gossip":
gossipTransport.consumeGossip(parsed[1]);
if (this.peerData.peer) {
shiftNodeWeight(
this.peerData.peer,
CONFIG.constants.violationWeightPenalties.failedGossip
);
}
break;
case "mapFetch":
this.transport.channel.standardSend("mapReturn", {
map: await networkMap.optionalExport(),
});
break;
case "mapReturn":
if (
parsed[1].map === "none" ||
eventHandler.dispatchWatchers[`networkMapRecieved${this.internalUID}`].length < 1
) {
return;
}
eventHandler.dispatch(`networkMapRecieved${this.internalUID}`);
networkMap.importList(parsed[1], this.peerData.hiddenAlias);
break;
case "routeImperative":
if (parsed[1].destination == CONFIG.communication.hiddenAlias) {
this.comprehendProspectiveRoute(parsed[1]);
return;
}
try {
detatchedRoute(parsed[1].destination, "routeImperative", parsed[1]);
} catch {
try {
detatchedRoute(parsed[1].sender, "routeInaccessible", {
routeID: parsed[1].routeID,
pointOfFailure: CONFIG.communication.hiddenAlias,
destination: parsed[1].sender,
});
} catch {
return;
}
}
break;
case "routeInaccessible":
if (parsed[1].destination == CONFIG.communication.hiddenAlias) {
eventHandler.dispatch(`routeInaccessible|${parsed[1].routeID}`, parsed[1]);
return;
}
try {
detatchedRoute(parsed[1].destination, "routeInaccessible", parsed[1]);
} catch {
return;
}
break;
case "routeRejected":
if (parsed[1].destination == CONFIG.communication.hiddenAlias) {
eventHandler.dispatch(`routeRejected|${parsed[1].routeID}`, parsed[1]);
return;
}
try {
detatchedRoute(parsed[1].destination, "routeRejected", parsed[1]);
} catch {
return;
}
break;
case "routeAccepted":
if (parsed[1].destination == CONFIG.communication.hiddenAlias) {
eventHandler.dispatch(`routeAccepted|${parsed[1].routeID}`, parsed[1]);
return;
}
try {
detatchedRoute(parsed[1].destination, "routeAccepted", parsed[1]);
} catch {
return;
}
break;
case "permissionEscalationRequest":
if (!this.peerData.hiddenAlias) return;
if (
CONFIG.communication.routeAcceptHeuristic.constructor.name === "AsyncFunction"
? await CONFIG.communication.routeAcceptHeuristic({
sender: this.peerData.hiddenAlias,
desiredPermissions: parsed[1].level,
})
: CONFIG.communication.routeAcceptHeuristic({
sender: this.peerData.hiddenAlias,
desiredPermissions: parsed[1].level,
})
) {
this.transport.channel.standardSend("permissionEscalationResponse", {
status: true,
});
this.permissions = parsed[1].level ?? "advanced";
if (this.permissions === "advanced" && !authPeers.includes(this.peerData.hiddenAlias))
addAuthPeer(this.peerData.hiddenAlias);
indicateRouteAccepted(this.peerData.hiddenAlias);
} else {
this.transport.channel.standardSend("permissionEscalationResponse", {
status: false,
});
}
break;
case "permissionEscalationResponse":
eventHandler.dispatch(`permissionEscalationResponse|${this.internalUID}`, {
status: parsed[1].status,
});
break;
case "invokerIntroduction":
if (this.acquainted) {