Начальная структура директорий, каркас проекта

This commit is contained in:
Book Pauk
2022-08-15 18:38:31 +07:00
parent 5739fef2b7
commit c3a0ce183e
19 changed files with 16271 additions and 0 deletions

60
server/core/AppLogger.js Normal file
View File

@@ -0,0 +1,60 @@
const fs = require('fs-extra');
const Logger = require('./Logger');
let instance = null;
//singleton
class AppLogger {
constructor() {
if (!instance) {
this.inited = false;
this.logFileName = '';
this.errLogFileName = '';
this.fatalLogFileName = '';
instance = this;
}
return instance;
}
async init(config) {
if (this.inited)
throw new Error('already inited');
let loggerParams = null;
if (config.loggingEnabled) {
await fs.ensureDir(config.logDir);
this.logFileName = `${config.logDir}/${config.name}.log`;
this.errLogFileName = `${config.logDir}/${config.name}.err.log`;
this.fatalLogFileName = `${config.logDir}/${config.name}.fatal.log`;
loggerParams = [
{log: 'ConsoleLog'},
{log: 'FileLog', fileName: this.logFileName},
{log: 'FileLog', fileName: this.errLogFileName, exclude: [LM_OK, LM_INFO, LM_TOTAL]},
{log: 'FileLog', fileName: this.fatalLogFileName, exclude: [LM_OK, LM_INFO, LM_WARN, LM_ERR, LM_TOTAL]},//LM_FATAL only
];
}
this._logger = new Logger(loggerParams);
this.inited = true;
return this.logger;
}
get logger() {
if (!this.inited)
throw new Error('not inited');
return this._logger;
}
get log() {
const l = this.logger;
return l.log.bind(l);
}
}
module.exports = AppLogger;

105
server/core/AsyncExit.js Normal file
View File

@@ -0,0 +1,105 @@
let instance = null;
const defaultTimeout = 15*1000;//15 sec
const exitSignals = ['SIGINT', 'SIGTERM', 'SIGBREAK', 'SIGHUP', 'uncaughtException'];
//singleton
class AsyncExit {
constructor(signals = exitSignals, codeOnSignal = 2) {
if (!instance) {
this.onSignalCallbacks = new Map();
this.callbacks = new Map();
this.afterCallbacks = new Map();
this.exitTimeout = defaultTimeout;
this._init(signals, codeOnSignal);
instance = this;
}
return instance;
}
_init(signals, codeOnSignal) {
const runSingalCallbacks = async(signal, err, origin) => {
for (const signalCallback of this.onSignalCallbacks.keys()) {
try {
await signalCallback(signal, err, origin);
} catch(e) {
console.error(e);
}
}
};
for (const signal of signals) {
process.once(signal, async(err, origin) => {
await runSingalCallbacks(signal, err, origin);
this.exit(codeOnSignal);
});
}
}
onSignal(signalCallback) {
if (!this.onSignalCallbacks.has(signalCallback)) {
this.onSignalCallbacks.set(signalCallback, true);
}
}
add(exitCallback) {
if (!this.callbacks.has(exitCallback)) {
this.callbacks.set(exitCallback, true);
}
}
addAfter(exitCallback) {
if (!this.afterCallbacks.has(exitCallback)) {
this.afterCallbacks.set(exitCallback, true);
}
}
remove(exitCallback) {
if (this.callbacks.has(exitCallback)) {
this.callbacks.delete(exitCallback);
}
if (this.afterCallbacks.has(exitCallback)) {
this.afterCallbacks.delete(exitCallback);
}
}
setExitTimeout(timeout) {
this.exitTimeout = timeout;
}
exit(code = 0) {
if (this.exiting)
return;
this.exiting = true;
const timer = setTimeout(() => { process.exit(code); }, this.exitTimeout);
(async() => {
for (const exitCallback of this.callbacks.keys()) {
try {
await exitCallback();
} catch(e) {
console.error(e);
}
}
for (const exitCallback of this.afterCallbacks.keys()) {
try {
await exitCallback();
} catch(e) {
console.error(e);
}
}
clearTimeout(timer);
//console.log('Exited gracefully');
process.exit(code);
})();
}
}
module.exports = AsyncExit;

232
server/core/Logger.js Normal file
View File

@@ -0,0 +1,232 @@
/*
Журналирование с буферизацией вывода
*/
const fs = require('fs-extra');
const ayncExit = new (require('./AsyncExit'))();
const sleep = (ms) => { return new Promise(resolve => setTimeout(resolve, ms)) };
global.LM_OK = 0;
global.LM_INFO = 1;
global.LM_WARN = 2;
global.LM_ERR = 3;
global.LM_FATAL = 4;
global.LM_TOTAL = 5;
const LOG_CACHE_BUFFER_SIZE = 8192;
const LOG_BUFFER_FLUSH_INTERVAL = 200;
const LOG_ROTATE_FILE_LENGTH = 1000000;
const LOG_ROTATE_FILE_DEPTH = 9;
const LOG_ROTATE_FILE_CHECK_INTERVAL = 60000;
let msgTypeToStr = {
[LM_OK]: ' OK',
[LM_INFO]: ' INFO',
[LM_WARN]: ' WARN',
[LM_ERR]: 'ERROR',
[LM_FATAL]: 'FATAL ERROR',
[LM_TOTAL]: 'TOTAL'
};
class BaseLog {
constructor(params) {
this.params = params;
this.exclude = new Set(params.exclude);
this.outputBufferLength = 0;
this.outputBuffer = [];
this.flushing = false;
}
async flush() {
if (this.flushing || !this.outputBufferLength)
return;
this.flushing = true;
this.data = this.outputBuffer;
this.outputBufferLength = 0;
this.outputBuffer = [];
await this.flushImpl(this.data)
.catch(e => { console.error(`Logger error: ${e}`); ayncExit.exit(1); } );
this.flushing = false;
}
log(msgType, message) {
if (this.closed)
return;
if (!this.exclude.has(msgType)) {
this.outputBuffer.push(message);
this.outputBufferLength += message.length;
if (this.outputBufferLength >= LOG_CACHE_BUFFER_SIZE && !this.flushing) {
this.flush();
}
if (!this.iid) {
this.iid = setInterval(() => {
if (!this.flushing) {
clearInterval(this.iid);
this.iid = 0;
this.flush();
}
}, LOG_BUFFER_FLUSH_INTERVAL);
}
}
}
async close() {
if (this.closed)
return;
if (this.iid)
clearInterval(this.iid);
try {
while (this.outputBufferLength) {
await this.flush();
await sleep(1);
}
} catch(e) {
console.log(e);
ayncExit.exit(1);
}
this.outputBufferLength = 0;
this.outputBuffer = [];
this.closed = true;
}
}
class FileLog extends BaseLog {
constructor(params) {
super(params);
this.fileName = params.fileName;
this.fd = fs.openSync(this.fileName, 'a');
this.rcid = 0;
}
async close() {
if (this.closed)
return;
await super.close();
if (this.fd) {
await fs.close(this.fd);
this.fd = null;
}
if (this.rcid)
clearTimeout(this.rcid);
}
async rotateFile(fileName, i) {
let fn = fileName;
if (i > 0)
fn += `.${i}`;
let tn = fileName + '.' + (i + 1);
let exists = await fs.access(tn).then(() => true).catch(() => false);
if (exists) {
if (i >= LOG_ROTATE_FILE_DEPTH - 1) {
await fs.unlink(tn);
} else {
await this.rotateFile(fileName, i + 1);
}
}
await fs.rename(fn, tn);
}
async doFileRotationIfNeeded() {
this.rcid = 0;
let stat = await fs.fstat(this.fd);
if (stat.size > LOG_ROTATE_FILE_LENGTH) {
await fs.close(this.fd);
await this.rotateFile(this.fileName, 0);
this.fd = await fs.open(this.fileName, "a");
}
}
async flushImpl(data) {
if (this.closed)
return;
if (!this.rcid) {
await this.doFileRotationIfNeeded();
this.rcid = setTimeout(() => {
this.rcid = 0;
}, LOG_ROTATE_FILE_CHECK_INTERVAL);
}
if (this.fd)
await fs.write(this.fd, Buffer.from(data.join('')));
}
}
class ConsoleLog extends BaseLog {
async flushImpl(data) {
process.stdout.write(data.join(''));
}
}
//------------------------------------------------------------------
const factory = {
ConsoleLog,
FileLog,
};
class Logger {
constructor(params = null) {
this.handlers = [];
if (params) {
params.forEach((logParams) => {
let className = logParams.log;
let loggerClass = factory[className];
this.handlers.push(new loggerClass(logParams));
});
}
this.closed = false;
ayncExit.onSignal((signal, err) => {
this.log(LM_FATAL, `Signal "${signal}" received, error: "${(err.stack ? err.stack : err)}", exiting...`);
});
ayncExit.addAfter(this.close.bind(this));
}
formatDate(date) {
return `${date.getFullYear()}-${(date.getMonth() + 1).toString().padStart(2, '0')}-${date.getDate().toString().padStart(2, '0')} ` +
`${date.getHours().toString().padStart(2, '0')}:${date.getMinutes().toString().padStart(2, '0')}:${date.getSeconds().toString().padStart(2, '0')}.` +
`${date.getMilliseconds().toString().padStart(3, '0')}`;
}
prepareMessage(msgType, message) {
return this.formatDate(new Date()) + ` ${msgTypeToStr[msgType]}: ${message}\n`;
}
log(msgType, message) {
if (message == null) {
message = msgType;
msgType = LM_INFO;
}
const mes = this.prepareMessage(msgType, message);
if (!this.closed) {
for (let i = 0; i < this.handlers.length; i++)
this.handlers[i].log(msgType, mes);
} else {
console.log(mes);
}
return mes;
}
async close() {
for (let i = 0; i < this.handlers.length; i++)
await this.handlers[i].close();
this.closed = true;
}
}
module.exports = Logger;

7
server/core/utils.js Normal file
View File

@@ -0,0 +1,7 @@
function versionText(config) {
return `${config.name} v${config.version}, Node.js ${process.version}`;
}
module.exports = {
versionText,
};