321 lines
11 KiB
JavaScript
321 lines
11 KiB
JavaScript
let server;
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let uninstalled = false;
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setTimeout(run, 500);
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function run() {
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const nodeRequire = window.require;
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const http = nodeRequire('http');
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const crypto = nodeRequire('crypto');
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const fs = nodeRequire('fs');
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const path = nodeRequire('path');
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const electron = nodeRequire('electron');
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const AppModel = require('models/app-model');
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const AutoTypeFilter = require('auto-type/auto-type-filter');
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const Logger = require('util/logger');
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const Alerts = require('comp/alerts');
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const Generator = require('util/password-generator');
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const GeneratorPresets = require('comp/generator-presets');
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const Version = '1.8.4.2';
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const DebugMode = true;
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const keys = {};
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const logger = new Logger('keewebhttp');
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startServer();
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function startServer() {
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if (uninstalled) {
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return;
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}
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server = http.createServer((req, res) => {
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if (req.method === 'POST') {
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const body = [];
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req.on('data', data => body.push(data));
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req.on('end', () => {
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const postData = Buffer.concat(body).toString();
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if (DebugMode) {
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logger.debug('< ' + postData);
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}
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new RequestContext(postData)
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.handle()
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.then(response => {
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if (DebugMode) {
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logger.debug('> ' + response);
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}
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res.statusCode = 200;
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res.setHeader('Content-Type', 'application/json');
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res.end(response);
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});
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});
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} else {
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res.statusCode = 200;
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res.setHeader('Content-Type', 'text/plain');
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res.end('Hey dude, you should POST here!');
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}
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});
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const port = 19455;
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const hostname = '127.0.0.1';
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server.listen(port, hostname, () => {
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if (uninstalled) {
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server.close();
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return;
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}
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logger.debug(`Server running at http://${hostname}:${port}/`);
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});
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server.on('connection', function (conn) {
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const key = conn.remoteAddress + ':' + conn.remotePort;
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server.conn[key] = conn;
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conn.on('close', () => {
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if (server) {
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delete server.conn[key];
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}
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});
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});
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server.conn = {};
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}
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class RequestContext {
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constructor(postData) {
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this.postData = postData;
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}
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handle() {
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let result;
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try {
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this.req = JSON.parse(this.postData);
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const response = this.execute() || this.resp;
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if (response instanceof Promise) {
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result = response.catch(e => {
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return this.makeError(e);
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});
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} else {
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result = Promise.resolve(response);
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}
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} catch (e) {
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result = Promise.resolve(this.makeError(e));
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}
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return result.then(res => JSON.stringify(res));
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}
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execute() {
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switch (this.req.RequestType) {
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case 'test-associate':
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return this.testAssociate();
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case 'associate':
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return this.associate();
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case 'get-logins':
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return this.getLogins({});
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case 'get-logins-count':
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return this.getLogins({onlyCount: true});
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case 'get-all-logins':
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return this.getLogins({all: true});
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case 'set-login':
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return this.setLogin();
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case 'generate-password':
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return this.generatePassword();
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default:
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throw 'Not implemented';
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}
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}
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makeError(e, skipLog) {
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if (!skipLog) {
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logger.error('handleRequest error', e);
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}
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return {
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Error: e ? e.toString() : '',
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Success: false,
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RequestType: this.req ? this.req.RequestType : '',
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Version: Version
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};
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}
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decrypt(value) {
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if (!this.aesKey) {
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throw 'No key';
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}
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if (!this.req.Nonce) {
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throw 'No nonce';
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}
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const key = Buffer.from(this.aesKey, 'base64');
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const nonce = Buffer.from(this.req.Nonce, 'base64');
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const decipher = crypto.createDecipheriv('aes-256-cbc', key, nonce);
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return Buffer.concat([decipher.update(value, 'base64'), decipher.final()]).toString();
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}
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encrypt(value) {
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if (!this.aesKey) {
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throw 'No aes key';
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}
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if (!this.resp || !this.resp.Nonce) {
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throw 'No nonce';
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}
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const key = Buffer.from(this.aesKey, 'base64');
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const nonce = Buffer.from(this.resp.Nonce, 'base64');
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const cipher = crypto.createCipheriv('aes-256-cbc', key, nonce);
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let data;
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if (value.isProtected) {
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const binaryData = value.getBinary();
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data = Buffer.from(binaryData);
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binaryData.fill(0);
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} else {
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data = Buffer.from(value, 'utf8');
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}
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const encrypted = Buffer.concat([cipher.update(data), cipher.final()]).toString('base64');
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data.fill(0);
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return encrypted;
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}
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getKeyById() {
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// TODO
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return keys[this.req.Id];
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}
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saveKeyWithId() {
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keys[this.req.Id] = this.req.Key;
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// TODO
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}
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verifyRequest() {
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if (!this.req.Verifier) {
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throw 'No verifier';
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}
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if (!this.aesKey) {
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this.aesKey = this.getKeyById();
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}
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const decrypted = this.decrypt(this.req.Verifier);
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if (decrypted !== this.req.Nonce) {
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throw 'Bad signature';
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}
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}
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createResponse() {
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const resp = {
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Success: true,
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Nonce: '',
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Verifier: '',
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Version: Version,
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RequestType: this.req.RequestType
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};
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if (this.req.Id && keys[this.req.Id]) {
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const key = Buffer.from(keys[this.req.Id], 'base64');
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const nonce = crypto.randomBytes(16);
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const cipher = crypto.createCipheriv('aes-256-cbc', key, nonce);
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const encrypted = Buffer.concat([cipher.update(nonce.toString('base64'), 'utf8'), cipher.final()]).toString('base64');
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resp.Id = this.req.Id;
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resp.Nonce = nonce.toString('base64');
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resp.Verifier = encrypted;
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}
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this.resp = resp;
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}
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testAssociate() {
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if (!this.req.Id) {
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return this.makeError('', true);
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}
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if (!this.getKeyById(this.req.Id)) {
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return this.makeError('Unknown Id', true);
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}
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this.verifyRequest();
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this.createResponse();
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}
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associate() {
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if (this.req.Id) {
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throw 'Id not expected';
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}
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if (!this.req.Key) {
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throw 'No request key';
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}
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this.aesKey = this.req.Key;
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this.verifyRequest();
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electron.remote.app.getMainWindow().focus();
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return new Promise((resolve, reject) => {
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Alerts.yesno({
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header: 'External Connection',
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body: 'Some app is trying to connect to KeeWeb. If you are setting up your plugin, please allow the connection. Otherwise, click No.',
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success: () => {
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resolve();
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},
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cancel: () => {
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reject('Rejected by user');
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}
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});
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}).then(() => {
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this.req.Id = 'KeeWeb_' + new Date().toISOString() + '_' + crypto.randomBytes(16).toString('hex');
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logger.info('associate: ', this.req.Id);
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this.saveKeyWithId();
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this.createResponse();
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return this.resp;
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});
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}
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getLogins(config) {
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this.verifyRequest();
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if (!this.req.Url && !config.all) {
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throw 'No url';
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}
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const url = this.req.Url ? this.decrypt(this.req.Url) : '';
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this.createResponse();
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const filter = new AutoTypeFilter({url}, AppModel.instance);
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if (config.all) {
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filter.ignoreWindowInfo = true;
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}
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const entries = filter.getEntries();
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this.resp.Count = entries.length;
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logger.info(`getLogins(${url}): ${this.resp.Count}`);
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if (!config.onlyCount) {
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this.resp.Entries = entries.map(entry => ({
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Login: entry.user ? this.encrypt(entry.user) : '',
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Name: entry.title ? this.encrypt(entry.title) : '',
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Password: entry.password ? this.encrypt(entry.password) : '',
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StringFields: null,
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Uuid: this.encrypt(entry.id)
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}));
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}
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}
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setLogin() {
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this.verifyRequest();
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if (!this.req.Url || !this.req.Login || !this.req.Password) {
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throw 'Invalid request';
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}
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const url = this.decrypt(this.req.Url);
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const login = this.decrypt(this.req.Login);
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const password = this.decrypt(this.req.Password);
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logger.info('setLogin', url, login, password);
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this.createResponse();
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}
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generatePassword() {
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this.verifyRequest();
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this.createResponse();
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const preset = GeneratorPresets.all.filter(p => p.default)[0] || GeneratorPresets.defaultPreset;
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const password = Generator.generate(preset);
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this.resp.Count = 1;
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this.resp.Entries = [{
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Login: '',
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Name: '',
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Password: this.encrypt(password),
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StringFields: null,
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Uuid: ''
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}];
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}
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}
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}
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module.exports.uninstall = function() {
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if (server) {
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server.close();
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for (const key of Object.keys(server.conn)) {
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server.conn[key].destroy();
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}
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server = null;
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}
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uninstalled = true;
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};
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