mudvault-mesh/dist/utils.js

Node.js client library for connecting to MudVault Mesh network

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.createMessage = createMessage;
exports.createTellMessage = createTellMessage;
exports.createChannelMessage = createChannelMessage;
exports.createWhoRequestMessage = createWhoRequestMessage;
exports.createFingerRequestMessage = createFingerRequestMessage;
exports.createLocateRequestMessage = createLocateRequestMessage;
exports.createPingMessage = createPingMessage;
exports.createPongMessage = createPongMessage;
exports.createErrorMessage = createErrorMessage;
exports.isExpired = isExpired;
exports.sanitizeMessage = sanitizeMessage;
const uuid_1 = require("uuid");
function createMessage(type, from, to, payload, metadata) {
    const defaultMetadata = {
        priority: 5,
        ttl: 300,
        encoding: 'utf-8',
        language: 'en',
        ...metadata
    };
    return {
        version: '1.0',
        id: (0, uuid_1.v4)(),
        timestamp: new Date().toISOString(),
        type,
        from,
        to,
        payload,
        metadata: defaultMetadata
    };
}
function createTellMessage(from, to, message) {
    return createMessage('tell', from, to, {
        message
    });
}
function createChannelMessage(from, channel, message, action = 'message') {
    return createMessage('channel', from, { mud: '*', channel }, {
        channel,
        message,
        action
    });
}
function createWhoRequestMessage(from, targetMud) {
    return createMessage('who', from, { mud: targetMud }, {
        request: true
    });
}
function createFingerRequestMessage(from, targetMud, targetUser) {
    return createMessage('finger', from, { mud: targetMud, user: targetUser }, {
        user: targetUser,
        request: true
    });
}
function createLocateRequestMessage(from, targetUser) {
    return createMessage('locate', from, { mud: '*' }, {
        user: targetUser,
        request: true
    });
}
function createPingMessage(from, to) {
    return createMessage('ping', from, to, {
        timestamp: Date.now()
    });
}
function createPongMessage(from, to, originalTimestamp) {
    return createMessage('pong', from, to, {
        timestamp: originalTimestamp
    });
}
function createErrorMessage(from, to, code, message, details) {
    return createMessage('error', from, to, {
        code,
        message,
        details
    });
}
function isExpired(message) {
    const messageTime = new Date(message.timestamp).getTime();
    const now = Date.now();
    const ttlMs = message.metadata.ttl * 1000;
    return (now - messageTime) > ttlMs;
}
function sanitizeMessage(message) {
    return message
        .replace(/[^\x20-\x7E]/g, '')
        .substring(0, 4096)
        .trim();
}
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