@intuitionrobotics/thunderstorm
Version:
88 lines • 3.54 kB
JavaScript
/*
* Thunderstorm is a full web app framework!
*
* Typescript & Express backend infrastructure that natively runs on firebase function
* Typescript & React frontend infrastructure
*
* Copyright (C) 2020 Intuition Robotics
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { ImplementationMissingException, Module } from "@intuitionrobotics/ts-common";
import { HeaderKey } from "../server/HttpServer.js";
import { ApiException } from "../../exceptions.js";
import {} from "../server/server-api.js";
import {} from "../../utils/types.js";
export class RemoteProxy_Class extends Module {
constructor() {
super("RemoteProxy");
}
async __queryRequestInfo(request) {
let data;
try {
data = this.getProxyHeader(request);
}
catch (_e) {
}
return {
key: this.getName(),
data
};
}
getProxyHeader(request) {
return this.proxyHeader.get(request);
}
getSecretHeader(request) {
return this.secretHeader.get(request);
}
Middleware = async (request) => {
const extras = this.assertSecret(request);
return { extras, proxyId: this.getProxyHeader(request) };
};
secretHeader;
proxyHeader;
init() {
if (!this.config)
throw new ImplementationMissingException("MUST specify config for this module!!");
if (!this.config.secretHeaderName)
this.config.secretHeaderName = 'x-secret';
if (!this.config.proxyHeaderName)
this.config.proxyHeaderName = 'x-proxy';
this.secretHeader = new HeaderKey(this.config.secretHeaderName);
this.proxyHeader = new HeaderKey(this.config.proxyHeaderName);
}
assertSecret(request) {
if (!this.secretHeader || !this.proxyHeader)
throw new ImplementationMissingException("MUST add RemoteProxy to your module list!!!");
const secret = this.getSecretHeader(request);
const proxyId = this.getProxyHeader(request);
const expectedSecret = this.config.remotes[proxyId];
if (!proxyId)
throw new ApiException(403, `Missing proxy declaration in config for ${proxyId} !!`);
if (!secret)
throw new ApiException(403, `Missing secret !!`);
if (!expectedSecret)
throw new ApiException(403, `ProxyId '${proxyId}' is not registered for remote access !!`);
if (expectedSecret.secret !== secret)
throw new ApiException(403, `Secret does not match for proxyId: ${proxyId}`);
const requestUrl = request.path;
if (!expectedSecret.urls || !expectedSecret.urls.includes(requestUrl))
throw new ApiException(403, `Requested url '${requestUrl}' is not allowed from proxyId: ${proxyId}`);
return expectedSecret.extras;
}
async processApi(request, _requestData) {
return this.assertSecret(request);
}
}
export const RemoteProxy = new RemoteProxy_Class();
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