smartproxy/ts/core/models/route-context.ts

113 lines
3.4 KiB
TypeScript

import * as plugins from '../../plugins.js';
/**
* Shared Route Context Interface
*
* This interface defines the route context object that is used by both
* SmartProxy and NetworkProxy, ensuring consistent context throughout the system.
*/
/**
* Route context for route matching and function-based target resolution
*/
export interface IRouteContext {
// Connection basics
port: number; // The matched incoming port
domain?: string; // The domain from SNI or Host header
clientIp: string; // The client's IP address
serverIp: string; // The server's IP address
// HTTP specifics (NetworkProxy only)
path?: string; // URL path (for HTTP connections)
query?: string; // Query string (for HTTP connections)
headers?: Record<string, string>; // HTTP headers (for HTTP connections)
// TLS information
isTls: boolean; // Whether the connection is TLS
tlsVersion?: string; // TLS version if applicable
// Routing information
routeName?: string; // The name of the matched route
routeId?: string; // The ID of the matched route
// Resolved values
targetHost?: string | string[]; // The resolved target host
targetPort?: number; // The resolved target port
// Request metadata
timestamp: number; // The request timestamp
connectionId: string; // Unique connection identifier
}
/**
* Extended context interface with HTTP-specific objects
* Used only in NetworkProxy for HTTP request handling
*/
export interface IHttpRouteContext extends IRouteContext {
req?: plugins.http.IncomingMessage;
res?: plugins.http.ServerResponse;
method?: string; // HTTP method (GET, POST, etc.)
}
/**
* Extended context interface with HTTP/2-specific objects
* Used only in NetworkProxy for HTTP/2 request handling
*/
export interface IHttp2RouteContext extends IHttpRouteContext {
stream?: plugins.http2.ServerHttp2Stream;
headers?: Record<string, string>; // HTTP/2 pseudo-headers like :method, :path
}
/**
* Create a basic route context from connection information
*/
export function createBaseRouteContext(options: {
port: number;
clientIp: string;
serverIp: string;
domain?: string;
isTls: boolean;
tlsVersion?: string;
connectionId: string;
}): IRouteContext {
return {
...options,
timestamp: Date.now(),
};
}
/**
* Convert IHttpRouteContext to IRouteContext
* This is used to ensure type compatibility when passing HTTP-specific context
* to methods that require the base IRouteContext type
*/
export function toBaseContext(httpContext: IHttpRouteContext): IRouteContext {
// Create a new object with only the properties from IRouteContext
const baseContext: IRouteContext = {
port: httpContext.port,
domain: httpContext.domain,
clientIp: httpContext.clientIp,
serverIp: httpContext.serverIp,
path: httpContext.path,
query: httpContext.query,
headers: httpContext.headers,
isTls: httpContext.isTls,
tlsVersion: httpContext.tlsVersion,
routeName: httpContext.routeName,
routeId: httpContext.routeId,
timestamp: httpContext.timestamp,
connectionId: httpContext.connectionId
};
// Only copy targetHost if it's a string
if (httpContext.targetHost) {
baseContext.targetHost = httpContext.targetHost;
}
// Copy targetPort if it exists
if (httpContext.targetPort) {
baseContext.targetPort = httpContext.targetPort;
}
return baseContext;
}