*Add dist
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parent
576ebdc09a
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GPG Key ID:
C997C339BE476FF2
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/// <reference types="node" />
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/// <reference types="node" />
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import EventEmitter from "events";
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export default class DHTFlood extends EventEmitter {
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private id;
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private ttl;
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private messageNumber;
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private lru;
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private swarm;
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constructor({ lruSize, ttl, messageNumber, id, swarm }?: {
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lruSize?: number | undefined;
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ttl?: number | undefined;
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messageNumber?: number | undefined;
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id?: Buffer | undefined;
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swarm?: null | undefined;
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});
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private handleMessage;
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private setupPeer;
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broadcast(data: any, ttl?: number): void;
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}
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//# sourceMappingURL=index.d.ts.map
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{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":";;AAAA,OAAO,YAAY,MAAM,QAAQ,CAAC;AAoBlC,MAAM,CAAC,OAAO,OAAO,QAAS,SAAQ,YAAY;IAC9C,OAAO,CAAC,EAAE,CAAS;IACnB,OAAO,CAAC,GAAG,CAAS;IACpB,OAAO,CAAC,aAAa,CAAS;IAC9B,OAAO,CAAC,GAAG,CAAM;IACjB,OAAO,CAAC,KAAK,CAAM;gBAEP,EACI,OAAkB,EAClB,GAAS,EACT,aAAiB,EACjB,EAA2B,EAC3B,KAAY,EACf;;;;;;KAAK;IAkBlB,OAAO,CAAC,aAAa;IAwBrB,OAAO,CAAC,SAAS;IAmCjB,SAAS,CAAC,IAAI,EAAE,GAAG,EAAE,GAAG,SAAW;CActC"}
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"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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const events_1 = __importDefault(require("events"));
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const crypto_1 = __importDefault(require("crypto"));
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// @ts-ignore
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const lru_1 = __importDefault(require("lru"));
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const debug_1 = __importDefault(require("debug"));
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// @ts-ignore
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const protomux_1 = __importDefault(require("protomux"));
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const messages_js_1 = require("./messages.js");
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// @ts-ignore
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const compact_encoding_1 = __importDefault(require("compact-encoding"));
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const b4a_1 = __importDefault(require("b4a"));
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const debug = (0, debug_1.default)('dht-flood');
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const LRU_SIZE = 255;
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const TTL = 255;
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const PROTOCOL = "lumeweb.flood";
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const FLOOD_SYMBOL = Symbol.for(PROTOCOL);
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class DHTFlood extends events_1.default {
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id;
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ttl;
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messageNumber;
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lru;
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swarm;
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constructor({ lruSize = LRU_SIZE, ttl = TTL, messageNumber = 0, id = crypto_1.default.randomBytes(32), swarm = null } = {}) {
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super();
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this.id = id;
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this.ttl = ttl;
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this.messageNumber = messageNumber;
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this.lru = new lru_1.default(lruSize);
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if (!swarm) {
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throw new Error('swarm is required');
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}
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this.swarm = swarm;
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this.swarm.on("connection", (peer) => {
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const mux = protomux_1.default.from(peer);
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mux.pair({ protocol: PROTOCOL }, () => this.setupPeer(peer));
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});
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}
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handleMessage({ originId, messageNumber, ttl, data }, messenger) {
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const originIdBuf = b4a_1.default.from(originId);
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// Ignore messages from ourselves
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if (originIdBuf.equals(this.id))
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return debug('Got message from self', originId, messageNumber);
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// Ignore messages we've already seen
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const key = originIdBuf.toString('hex') + messageNumber;
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if (this.lru.get(key))
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return debug('Got message that was already seen', originId, messageNumber);
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this.lru.set(key, true);
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this.emit('message', data, originId, messageNumber);
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if (ttl <= 0)
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return debug('Got message at end of TTL', originId, messageNumber, ttl);
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messenger.send({
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originId,
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messageNumber,
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data,
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ttl: ttl - 1
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});
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}
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setupPeer(peer) {
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const mux = protomux_1.default.from(peer);
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let chan;
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if (!mux.opened({ protocol: PROTOCOL })) {
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chan = mux.createChannel({
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protocol: PROTOCOL,
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});
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peer[FLOOD_SYMBOL] = chan;
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}
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chan = peer[FLOOD_SYMBOL];
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if (!chan) {
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throw new Error('could not find channel');
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}
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if (!chan.messages.length) {
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chan.addMessage({
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encoding: {
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preencode: (state, m) => compact_encoding_1.default.raw.preencode(state, messages_js_1.Packet.encode(m).finish()),
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encode: (state, m) => compact_encoding_1.default.raw.encode(state, messages_js_1.Packet.encode(m).finish()),
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decode: (state) => messages_js_1.Packet.decode(compact_encoding_1.default.raw.decode(state)),
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},
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onmessage: (msg) => this.handleMessage(msg, chan.messages[0]),
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});
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}
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if (!chan.opened) {
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chan.open();
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}
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return chan.messages[0];
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}
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broadcast(data, ttl = this.ttl) {
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this.messageNumber++;
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const { id, messageNumber } = this;
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for (const peer of this.swarm.connections.values()) {
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const message = this.setupPeer(peer);
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message.send({
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originId: id,
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messageNumber,
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ttl,
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data
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});
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}
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}
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}
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exports.default = DHTFlood;
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import * as _m0 from "protobufjs/minimal";
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export declare const protobufPackage = "";
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/** type=0 */
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export interface Packet {
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originId: Uint8Array;
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messageNumber: number;
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ttl: number;
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data: Uint8Array;
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}
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export declare const Packet: {
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encode(message: Packet, writer?: _m0.Writer): _m0.Writer;
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decode(input: _m0.Reader | Uint8Array, length?: number): Packet;
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fromJSON(object: any): Packet;
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toJSON(message: Packet): unknown;
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fromPartial<I extends {
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originId?: Uint8Array | undefined;
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messageNumber?: number | undefined;
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ttl?: number | undefined;
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data?: Uint8Array | undefined;
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} & {
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originId?: Uint8Array | undefined;
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messageNumber?: number | undefined;
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ttl?: number | undefined;
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data?: Uint8Array | undefined;
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} & { [K in Exclude<keyof I, keyof Packet>]: never; }>(object: I): Packet;
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};
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declare type Builtin = Date | Function | Uint8Array | string | number | boolean | undefined;
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export declare type DeepPartial<T> = T extends Builtin ? T : T extends Array<infer U> ? Array<DeepPartial<U>> : T extends ReadonlyArray<infer U> ? ReadonlyArray<DeepPartial<U>> : T extends {} ? {
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[K in keyof T]?: DeepPartial<T[K]>;
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} : Partial<T>;
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declare type KeysOfUnion<T> = T extends T ? keyof T : never;
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export declare type Exact<P, I extends P> = P extends Builtin ? P : P & {
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[K in keyof P]: Exact<P[K], I[K]>;
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} & {
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[K in Exclude<keyof I, KeysOfUnion<P>>]: never;
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};
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export {};
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//# sourceMappingURL=messages.d.ts.map
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{"version":3,"file":"messages.d.ts","sourceRoot":"","sources":["../src/messages.ts"],"names":[],"mappings":"AACA,OAAO,KAAK,GAAG,MAAM,oBAAoB,CAAC;AAE1C,eAAO,MAAM,eAAe,KAAK,CAAC;AAElC,aAAa;AACb,MAAM,WAAW,MAAM;IACrB,QAAQ,EAAE,UAAU,CAAC;IACrB,aAAa,EAAE,MAAM,CAAC;IACtB,GAAG,EAAE,MAAM,CAAC;IACZ,IAAI,EAAE,UAAU,CAAC;CAClB;AAMD,eAAO,MAAM,MAAM;oBACD,MAAM,WAAU,IAAI,MAAM,GAAyB,IAAI,MAAM;kBAgB/D,IAAI,MAAM,GAAG,UAAU,WAAW,MAAM,GAAG,MAAM;qBA2B9C,GAAG,GAAG,MAAM;oBASb,MAAM,GAAG,OAAO;;;;;;;;;;;uEAWiC,MAAM;CAQxE,CAAC;AA8CF,aAAK,OAAO,GAAG,IAAI,GAAG,QAAQ,GAAG,UAAU,GAAG,MAAM,GAAG,MAAM,GAAG,OAAO,GAAG,SAAS,CAAC;AAEpF,oBAAY,WAAW,CAAC,CAAC,IAAI,CAAC,SAAS,OAAO,GAAG,CAAC,GAC9C,CAAC,SAAS,KAAK,CAAC,MAAM,CAAC,CAAC,GAAG,KAAK,CAAC,WAAW,CAAC,CAAC,CAAC,CAAC,GAAG,CAAC,SAAS,aAAa,CAAC,MAAM,CAAC,CAAC,GAAG,aAAa,CAAC,WAAW,CAAC,CAAC,CAAC,CAAC,GACnH,CAAC,SAAS,EAAE,GAAG;KAAG,CAAC,IAAI,MAAM,CAAC,CAAC,CAAC,EAAE,WAAW,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;CAAE,GACrD,OAAO,CAAC,CAAC,CAAC,CAAC;AAEf,aAAK,WAAW,CAAC,CAAC,IAAI,CAAC,SAAS,CAAC,GAAG,MAAM,CAAC,GAAG,KAAK,CAAC;AACpD,oBAAY,KAAK,CAAC,CAAC,EAAE,CAAC,SAAS,CAAC,IAAI,CAAC,SAAS,OAAO,GAAG,CAAC,GACrD,CAAC,GAAG;KAAG,CAAC,IAAI,MAAM,CAAC,GAAG,KAAK,CAAC,CAAC,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC,CAAC,CAAC;CAAE,GAAG;KAAG,CAAC,IAAI,OAAO,CAAC,MAAM,CAAC,EAAE,WAAW,CAAC,CAAC,CAAC,CAAC,GAAG,KAAK;CAAE,CAAC"}
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"use strict";
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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var desc = Object.getOwnPropertyDescriptor(m, k);
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if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
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desc = { enumerable: true, get: function() { return m[k]; } };
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}
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Object.defineProperty(o, k2, desc);
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}) : (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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o[k2] = m[k];
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}));
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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}) : function(o, v) {
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o["default"] = v;
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});
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var __importStar = (this && this.__importStar) || function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
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__setModuleDefault(result, mod);
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return result;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.Packet = exports.protobufPackage = void 0;
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/* eslint-disable */
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const _m0 = __importStar(require("protobufjs/minimal"));
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exports.protobufPackage = "";
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function createBasePacket() {
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return { originId: new Uint8Array(), messageNumber: 0, ttl: 0, data: new Uint8Array() };
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}
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exports.Packet = {
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encode(message, writer = _m0.Writer.create()) {
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if (message.originId.length !== 0) {
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writer.uint32(10).bytes(message.originId);
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}
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if (message.messageNumber !== 0) {
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writer.uint32(16).uint32(message.messageNumber);
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}
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if (message.ttl !== 0) {
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writer.uint32(24).uint32(message.ttl);
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}
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if (message.data.length !== 0) {
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writer.uint32(34).bytes(message.data);
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}
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return writer;
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},
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decode(input, length) {
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const reader = input instanceof _m0.Reader ? input : new _m0.Reader(input);
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let end = length === undefined ? reader.len : reader.pos + length;
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const message = createBasePacket();
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while (reader.pos < end) {
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const tag = reader.uint32();
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switch (tag >>> 3) {
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case 1:
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message.originId = reader.bytes();
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break;
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case 2:
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message.messageNumber = reader.uint32();
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break;
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case 3:
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message.ttl = reader.uint32();
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break;
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case 4:
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message.data = reader.bytes();
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break;
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default:
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reader.skipType(tag & 7);
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break;
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}
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}
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return message;
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},
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fromJSON(object) {
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return {
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originId: isSet(object.originId) ? bytesFromBase64(object.originId) : new Uint8Array(),
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messageNumber: isSet(object.messageNumber) ? Number(object.messageNumber) : 0,
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ttl: isSet(object.ttl) ? Number(object.ttl) : 0,
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data: isSet(object.data) ? bytesFromBase64(object.data) : new Uint8Array(),
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};
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},
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toJSON(message) {
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const obj = {};
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message.originId !== undefined &&
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(obj.originId = base64FromBytes(message.originId !== undefined ? message.originId : new Uint8Array()));
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message.messageNumber !== undefined && (obj.messageNumber = Math.round(message.messageNumber));
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message.ttl !== undefined && (obj.ttl = Math.round(message.ttl));
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message.data !== undefined &&
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(obj.data = base64FromBytes(message.data !== undefined ? message.data : new Uint8Array()));
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return obj;
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},
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fromPartial(object) {
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const message = createBasePacket();
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message.originId = object.originId ?? new Uint8Array();
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message.messageNumber = object.messageNumber ?? 0;
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message.ttl = object.ttl ?? 0;
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message.data = object.data ?? new Uint8Array();
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return message;
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},
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};
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var globalThis = (() => {
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if (typeof globalThis !== "undefined") {
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return globalThis;
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}
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if (typeof self !== "undefined") {
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return self;
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}
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if (typeof window !== "undefined") {
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return window;
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}
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if (typeof global !== "undefined") {
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return global;
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}
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throw "Unable to locate global object";
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})();
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function bytesFromBase64(b64) {
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if (globalThis.Buffer) {
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return Uint8Array.from(globalThis.Buffer.from(b64, "base64"));
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}
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else {
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const bin = globalThis.atob(b64);
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const arr = new Uint8Array(bin.length);
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for (let i = 0; i < bin.length; ++i) {
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arr[i] = bin.charCodeAt(i);
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}
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return arr;
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}
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}
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function base64FromBytes(arr) {
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if (globalThis.Buffer) {
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return globalThis.Buffer.from(arr).toString("base64");
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}
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else {
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const bin = [];
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arr.forEach((byte) => {
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bin.push(String.fromCharCode(byte));
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});
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return globalThis.btoa(bin.join(""));
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}
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}
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function isSet(value) {
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return value !== null && value !== undefined;
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}
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