TypeScript!
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/**
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* Copyright 2013-2018 Zaid Abdulla
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*
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* This file is part of GenieACS.
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*
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* GenieACS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* GenieACS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with GenieACS. If not, see <http://www.gnu.org/licenses/>.
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*/
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import * as fs from "fs";
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import * as os from "os";
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import * as config from "./config";
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const REOPEN_EVERY = 60000;
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const LOG_FORMAT = config.get("LOG_FORMAT");
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const ACCESS_LOG_FORMAT = config.get("ACCESS_LOG_FORMAT") || LOG_FORMAT;
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const defaultMeta: { [name: string]: any } = {};
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let LOG_SYSTEMD = false;
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let ACCESS_LOG_SYSTEMD = false;
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let LOG_FILE, ACCESS_LOG_FILE;
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declare global {
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/* eslint-disable-next-line @typescript-eslint/no-namespace */
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namespace NodeJS {
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export interface WritableStream {
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fd?: number;
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}
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}
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}
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declare module "fs" {
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interface WriteStream {
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fd?: number;
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}
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}
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let logStream = fs.createWriteStream(null, { fd: process.stderr.fd });
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let logStat = fs.fstatSync(logStream.fd);
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let accessLogStream = fs.createWriteStream(null, { fd: process.stdout.fd });
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let accessLogStat = fs.fstatSync(accessLogStream.fd);
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// Reopen if original files have been moved (e.g. logrotate)
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function reopen(): void {
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let counter = 1;
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if (LOG_FILE) {
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++counter;
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fs.stat(LOG_FILE, (err, stat) => {
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if (err && !err.message.startsWith("ENOENT:")) throw err;
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if (!(stat && stat.dev === logStat.dev && stat.ino === logStat.ino)) {
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logStream.end();
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logStream = fs.createWriteStream(null, {
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fd: fs.openSync(LOG_FILE, "a")
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});
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logStat = fs.fstatSync(logStream.fd);
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}
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if (--counter === 0)
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setTimeout(reopen, REOPEN_EVERY - (Date.now() % REOPEN_EVERY)).unref();
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});
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}
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if (ACCESS_LOG_FILE) {
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++counter;
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fs.stat(ACCESS_LOG_FILE, (err, stat) => {
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if (err && !err.message.startsWith("ENOENT:")) throw err;
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if (
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!(
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stat &&
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stat.dev === accessLogStat.dev &&
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stat.ino === accessLogStat.ino
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)
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) {
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accessLogStream.end();
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accessLogStream = fs.createWriteStream(null, {
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fd: fs.openSync(ACCESS_LOG_FILE, "a")
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});
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accessLogStat = fs.fstatSync(accessLogStream.fd);
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}
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if (--counter === 0)
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setTimeout(reopen, REOPEN_EVERY - (Date.now() % REOPEN_EVERY)).unref();
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});
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}
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if (--counter === 0)
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setTimeout(reopen, REOPEN_EVERY - (Date.now() % REOPEN_EVERY)).unref();
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}
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export function init(service, version): void {
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defaultMeta.hostname = os.hostname();
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defaultMeta.pid = process.pid;
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defaultMeta.name = `genieacs-${service}`;
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defaultMeta.version = version;
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LOG_FILE = config.get(`${service.toUpperCase()}_LOG_FILE`);
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ACCESS_LOG_FILE = config.get(`${service.toUpperCase()}_ACCESS_LOG_FILE`);
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if (LOG_FILE) {
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logStream = fs.createWriteStream(null, { fd: fs.openSync(LOG_FILE, "a") });
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logStat = fs.fstatSync(logStream.fd);
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}
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if (ACCESS_LOG_FILE) {
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accessLogStream = fs.createWriteStream(null, {
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fd: fs.openSync(ACCESS_LOG_FILE, "a")
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});
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accessLogStat = fs.fstatSync(accessLogStream.fd);
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}
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// Determine if logs are going to journald
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const JOURNAL_STREAM = process.env["JOURNAL_STREAM"];
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if (JOURNAL_STREAM) {
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const [dev, inode] = JOURNAL_STREAM.split(":").map(parseInt);
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LOG_SYSTEMD = logStat.dev === dev && logStat.ino === inode;
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ACCESS_LOG_SYSTEMD =
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accessLogStat.dev === dev && accessLogStat.ino === inode;
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}
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if (LOG_FILE || ACCESS_LOG_FILE)
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// Can't use setInterval as we need all workers to cehck at the same time
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setTimeout(reopen, REOPEN_EVERY - (Date.now() % REOPEN_EVERY)).unref();
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}
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export function close(): void {
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accessLogStream.end();
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logStream.end();
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}
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export function flatten(details): {} {
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if (details.sessionContext) {
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details.deviceId = details.sessionContext.deviceId;
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details.remoteAddress =
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details.sessionContext.httpRequest.connection.remoteAddress;
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delete details.sessionContext;
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}
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if (details.exception) {
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details.exceptionName = details.exception.name;
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details.exceptionMessage = details.exception.message;
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details.exceptionStack = details.exception.stack;
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delete details.exception;
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}
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if (details.task) {
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details.taskId = details.task._id;
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delete details.task;
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}
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if (details.rpc) {
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if (details.rpc.acsRequest) {
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details.acsRequestId = details.rpc.id;
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details.acsRequestName = details.rpc.acsRequest.name;
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if (details.rpc.acsRequest.commandKey)
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details.acsRequestCommandKey = details.rpc.acsRequest.commandKey;
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} else if (details.rpc.cpeRequest) {
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details.cpeRequestId = details.rpc.id;
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if (details.rpc.cpeRequest.name === "Inform") {
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details.informEvent = details.rpc.cpeRequest.event.join(",");
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details.informRetryCount = details.rpc.cpeRequest.retryCount;
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} else {
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details.cpeRequestName = details.rpc.cpeRequest.name;
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if (details.rpc.cpeRequest.commandKey)
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details.cpeRequestCommandKey = details.rpc.cpeRequest.commandKey;
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}
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} else if (details.rpc.cpeFault) {
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details.acsRequestId = details.rpc.id;
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details.cpeFaultCode = details.rpc.cpeFault.detail.faultCode;
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details.cpeFaultString = details.rpc.cpeFault.detail.faultString;
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}
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delete details.rpc;
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}
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if (details.fault) {
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details.faultCode = details.fault.code;
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details.faultMessage = details.fault.message;
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delete details.fault;
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}
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// For genieacs-ui
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if (details.context) {
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details.remoteAddress = details.context.request.ip;
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if (details.context.state.user)
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details.user = details.context.state.user.username;
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delete details.context;
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}
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for (const [k, v] of Object.entries(details))
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if (v == null) delete details[k];
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return details;
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}
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function formatJson(details, systemd): string {
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if (systemd) {
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let severity = "";
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if (details.severity === "info") severity = "<6>";
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else if (details.severity === "warn") severity = "<4>";
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else if (details.severity === "error") severity = "<3>";
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return `${severity}${JSON.stringify(flatten(details))}${os.EOL}`;
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}
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return `${JSON.stringify(flatten(details))}${os.EOL}`;
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}
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function formatSimple(details, systemd): string {
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flatten(details);
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let remote = "";
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if (details.remoteAddress) {
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if (details.deviceId)
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remote = `${details.remoteAddress} ${details.deviceId}: `;
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else if (details.user)
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remote = `${details.user}@${details.remoteAddress}: `;
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else remote = `${details.remoteAddress}: `;
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}
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const keys = Object.keys(details);
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const skip = {
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deviceId: 1,
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user: 1,
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remoteAddress: 1,
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severity: 1,
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timestamp: 1,
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message: 1
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};
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let meta = "";
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const kv = [];
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for (const k of keys)
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if (!skip[k]) kv.push(`${k}=${JSON.stringify(details[k])}`);
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if (kv.length) meta = `; ${kv.join(" ")}`;
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if (systemd) {
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let severity = "";
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if (details.severity === "info") severity = "<6>";
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else if (details.severity === "warn") severity = "<4>";
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else if (details.severity === "error") severity = "<3>";
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return `${severity}${remote}${details.message}${meta}${os.EOL}`;
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}
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return `${details.timestamp} [${details.severity.toUpperCase()}] ${remote}${
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details.message
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}${meta}${os.EOL}`;
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}
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function log(details): void {
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details.timestamp = new Date().toISOString();
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if (LOG_FORMAT === "json") {
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details = Object.assign({}, defaultMeta, details);
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logStream.write(formatJson(details, LOG_SYSTEMD));
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} else {
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logStream.write(formatSimple(details, LOG_SYSTEMD));
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}
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}
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export function info(details): void {
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details.severity = "info";
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log(details);
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}
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export function warn(details): void {
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details.severity = "warn";
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log(details);
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}
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export function error(details): void {
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details.severity = "error";
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log(details);
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}
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export function accessLog(details): void {
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details.timestamp = new Date().toISOString();
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if (ACCESS_LOG_FORMAT === "json") {
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Object.assign(details, defaultMeta);
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accessLogStream.write(formatJson(details, ACCESS_LOG_SYSTEMD));
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} else {
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accessLogStream.write(formatSimple(details, ACCESS_LOG_SYSTEMD));
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}
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}
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export function accessInfo(details): void {
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details.severity = "info";
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accessLog(details);
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}
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export function accessWarn(details): void {
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details.severity = "warn";
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accessLog(details);
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}
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export function accessError(details): void {
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details.severity = "error";
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accessLog(details);
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}
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