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143 lines
3.3 KiB
JavaScript
143 lines
3.3 KiB
JavaScript
/* eslint-env node */
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/* eslint strict: ['error', 'never'] */
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const electron = require('electron');
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const bunyan = require('bunyan');
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const _ = require('lodash');
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const debuglogs = require('./modules/debuglogs');
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const Privacy = require('./modules/privacy');
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const ipc = electron.ipcRenderer;
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// Default Bunyan levels: https://github.com/trentm/node-bunyan#levels
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// To make it easier to visually scan logs, we make all levels the same length
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const BLANK_LEVEL = ' ';
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const LEVELS = {
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60: 'fatal',
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50: 'error',
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40: 'warn ',
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30: 'info ',
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20: 'debug',
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10: 'trace',
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};
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// Backwards-compatible logging, simple strings and no level (defaulted to INFO)
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function now() {
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const date = new Date();
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return date.toJSON();
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}
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function log(...args) {
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const consoleArgs = ['INFO ', now()].concat(args);
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console._log(...consoleArgs);
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// To avoid [Object object] in our log since console.log handles non-strings smoothly
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const str = args.map((item) => {
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if (typeof item !== 'string') {
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try {
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return JSON.stringify(item);
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} catch (error) {
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return item;
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}
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}
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return item;
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});
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const logText = Privacy.redactAll(str.join(' '));
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ipc.send('log-info', logText);
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}
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if (window.console) {
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console._log = console.log;
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console.log = log;
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}
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// The mechanics of preparing a log for publish
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function getHeader() {
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let header = window.navigator.userAgent;
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header += ` node/${window.config.node_version}`;
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header += ` env/${window.config.environment}`;
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return header;
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}
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function getLevel(level) {
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const text = LEVELS[level];
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if (!text) {
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return BLANK_LEVEL;
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}
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return text.toUpperCase();
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}
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function formatLine(entry) {
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return `${getLevel(entry.level)} ${entry.time} ${entry.msg}`;
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}
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function format(entries) {
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return Privacy.redactAll(entries.map(formatLine).join('\n'));
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}
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function fetch() {
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return new Promise((resolve) => {
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ipc.send('fetch-log');
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ipc.on('fetched-log', (event, text) => {
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const result = `${getHeader()}\n${format(text)}`;
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resolve(result);
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});
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});
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}
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const publish = debuglogs.upload;
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// A modern logging interface for the browser
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// We create our own stream because we don't want to output JSON to the devtools console.
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// Anyway, the default process.stdout stream goes to the command-line, not the devtools.
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const logger = bunyan.createLogger({
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name: 'log',
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streams: [{
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level: 'debug',
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stream: {
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write(entry) {
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console._log(formatLine(JSON.parse(entry)));
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},
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},
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}],
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});
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// The Bunyan API: https://github.com/trentm/node-bunyan#log-method-api
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function logAtLevel(level, ...args) {
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const ipcArgs = [`log-${level}`].concat(args);
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ipc.send(...ipcArgs);
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logger[level](...args);
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}
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window.log = {
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fatal: _.partial(logAtLevel, 'fatal'),
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error: _.partial(logAtLevel, 'error'),
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warn: _.partial(logAtLevel, 'warn'),
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info: _.partial(logAtLevel, 'info'),
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debug: _.partial(logAtLevel, 'debug'),
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trace: _.partial(logAtLevel, 'trace'),
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fetch,
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publish,
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};
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window.onerror = (message, script, line, col, error) => {
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const errorInfo = error && error.stack ? error.stack : JSON.stringify(error);
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window.log.error(`Top-level unhandled error: ${errorInfo}`);
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};
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window.addEventListener('unhandledrejection', (rejectionEvent) => {
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window.log.error(`Top-level unhandled promise rejection: ${rejectionEvent.reason}`);
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});
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