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@push.rocks/smartproxy

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A powerful proxy package with unified route-based configuration for high traffic management. Features include SSL/TLS support, flexible routing patterns, WebSocket handling, advanced security options, and automatic ACME certificate management.

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/** * Route Utilities * * This file provides utility functions for working with route configurations, * including merging, finding, and managing route collections. */ import { validateRouteConfig } from './route-validator.js'; /** * Merge two route configurations * The second route's properties will override the first route's properties where they exist * @param baseRoute The base route configuration * @param overrideRoute The route configuration with overriding properties * @returns A new merged route configuration */ export function mergeRouteConfigs(baseRoute, overrideRoute) { // Create deep copies to avoid modifying original objects const mergedRoute = JSON.parse(JSON.stringify(baseRoute)); // Apply overrides at the top level if (overrideRoute.id) mergedRoute.id = overrideRoute.id; if (overrideRoute.name) mergedRoute.name = overrideRoute.name; if (overrideRoute.enabled !== undefined) mergedRoute.enabled = overrideRoute.enabled; if (overrideRoute.priority !== undefined) mergedRoute.priority = overrideRoute.priority; // Merge match configuration if (overrideRoute.match) { mergedRoute.match = { ...mergedRoute.match }; if (overrideRoute.match.ports !== undefined) { mergedRoute.match.ports = overrideRoute.match.ports; } if (overrideRoute.match.domains !== undefined) { mergedRoute.match.domains = overrideRoute.match.domains; } if (overrideRoute.match.path !== undefined) { mergedRoute.match.path = overrideRoute.match.path; } if (overrideRoute.match.headers !== undefined) { mergedRoute.match.headers = overrideRoute.match.headers; } } // Merge action configuration if (overrideRoute.action) { // If action types are different, replace the entire action if (overrideRoute.action.type && overrideRoute.action.type !== mergedRoute.action.type) { // Handle socket handler specially since it's a function if (overrideRoute.action.type === 'socket-handler' && overrideRoute.action.socketHandler) { mergedRoute.action = { type: 'socket-handler', socketHandler: overrideRoute.action.socketHandler }; } else { mergedRoute.action = JSON.parse(JSON.stringify(overrideRoute.action)); } } else { // Otherwise merge the action properties mergedRoute.action = { ...mergedRoute.action }; // Merge targets if (overrideRoute.action.targets) { mergedRoute.action.targets = overrideRoute.action.targets; } // Merge TLS options if (overrideRoute.action.tls) { mergedRoute.action.tls = { ...mergedRoute.action.tls, ...overrideRoute.action.tls }; } // Handle socket handler update if (overrideRoute.action.socketHandler) { mergedRoute.action.socketHandler = overrideRoute.action.socketHandler; } } } return mergedRoute; } import { DomainMatcher, PathMatcher, HeaderMatcher } from '../../../core/routing/matchers/index.js'; /** * Expand a port range specification into individual ports. */ export function expandPortRange(portRange) { if (typeof portRange === 'number') { return [portRange]; } return portRange.flatMap((item) => { if (typeof item === 'number') { return [item]; } if (item.from > item.to) { return []; } const ports = []; for (let port = item.from; port <= item.to; port++) { ports.push(port); } return ports; }); } /** * Check if a port range contains a port. */ export function portRangeIncludes(portRange, port) { if (typeof portRange === 'number') { return portRange === port; } return portRange.some((item) => { if (typeof item === 'number') { return item === port; } return port >= item.from && port <= item.to; }); } /** * Check if a route matches a domain * @param route The route to check * @param domain The domain to match against * @returns True if the route matches the domain, false otherwise */ export function routeMatchesDomain(route, domain) { if (!route.match?.domains) { return false; } const domains = Array.isArray(route.match.domains) ? route.match.domains : [route.match.domains]; return domains.some(d => DomainMatcher.match(d, domain)); } /** * Check if a route matches a port * @param route The route to check * @param port The port to match against * @returns True if the route matches the port, false otherwise */ export function routeMatchesPort(route, port) { if (!route.match?.ports) { return false; } return portRangeIncludes(route.match.ports, port); } /** * Check if a route matches a path * @param route The route to check * @param path The path to match against * @returns True if the route matches the path, false otherwise */ export function routeMatchesPath(route, path) { if (!route.match?.path) { return true; // No path specified means it matches any path } return PathMatcher.match(route.match.path, path).matches; } /** * Check if a route matches headers * @param route The route to check * @param headers The headers to match against * @returns True if the route matches the headers, false otherwise */ export function routeMatchesHeaders(route, headers) { if (!route.match?.headers || Object.keys(route.match.headers).length === 0) { return true; // No headers specified means it matches any headers } for (const [headerName, expectedValue] of Object.entries(route.match.headers)) { const actualKey = Object.keys(headers).find((key) => key.toLowerCase() === headerName.toLowerCase()); const actualValue = actualKey ? headers[actualKey] : undefined; if (actualValue === undefined) { return false; } if (expectedValue instanceof RegExp) { if (!expectedValue.test(actualValue)) { return false; } continue; } if (!HeaderMatcher.match(expectedValue, actualValue)) { return false; } } return true; } /** * Find all routes that match the given criteria * @param routes Array of routes to search * @param criteria Matching criteria * @returns Array of matching routes sorted by priority */ export function findMatchingRoutes(routes, criteria) { // Filter routes that are enabled and match all provided criteria const matchingRoutes = routes.filter(route => { // Skip disabled routes if (route.enabled === false) { return false; } // Check domain match if specified if (criteria.domain && !routeMatchesDomain(route, criteria.domain)) { return false; } // Check port match if specified if (criteria.port !== undefined && !routeMatchesPort(route, criteria.port)) { return false; } // Check path match if specified if (criteria.path && !routeMatchesPath(route, criteria.path)) { return false; } // Check headers match if specified if (criteria.headers && !routeMatchesHeaders(route, criteria.headers)) { return false; } return true; }); // Sort matching routes by priority (higher priority first) return matchingRoutes.sort((a, b) => { const priorityA = a.priority || 0; const priorityB = b.priority || 0; return priorityB - priorityA; // Higher priority first }); } /** * Find the best matching route for the given criteria * @param routes Array of routes to search * @param criteria Matching criteria * @returns The best matching route or undefined if no match */ export function findBestMatchingRoute(routes, criteria) { const matchingRoutes = findMatchingRoutes(routes, criteria); return matchingRoutes.length > 0 ? matchingRoutes[0] : undefined; } /** * Create a route ID based on route properties * @param route Route configuration * @returns Generated route ID */ export function generateRouteId(route) { // Create a deterministic ID based on route properties const domains = Array.isArray(route.match?.domains) ? route.match.domains.join('-') : route.match?.domains || 'any'; let portsStr = 'any'; if (route.match?.ports) { if (Array.isArray(route.match.ports)) { portsStr = route.match.ports.join('-'); } else if (typeof route.match.ports === 'number') { portsStr = route.match.ports.toString(); } } const path = route.match?.path || 'any'; const action = route.action?.type || 'unknown'; return `route-${domains}-${portsStr}-${path}-${action}`.replace(/[^a-zA-Z0-9-]/g, '-'); } /** * Clone a route configuration * @param route Route to clone * @returns Deep copy of the route */ export function cloneRoute(route) { return JSON.parse(JSON.stringify(route)); } //# 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