91 lines
2.7 KiB
TypeScript
91 lines
2.7 KiB
TypeScript
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import * as express from 'express'
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import { UserRight } from '../../../../shared/models/users'
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import { asyncMiddleware, authenticate, ensureUserHasRight } from '../../../middlewares'
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import { mtimeSortFilesDesc } from '../../../../shared/utils/logs/logs'
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import { readdir } from 'fs-extra'
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import { CONFIG, MAX_LOGS_OUTPUT_CHARACTERS } from '../../../initializers'
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import { createInterface } from 'readline'
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import { createReadStream } from 'fs'
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import { join } from 'path'
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import { getLogsValidator } from '../../../middlewares/validators/logs'
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import { LogLevel } from '../../../../shared/models/server/log-level.type'
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const logsRouter = express.Router()
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logsRouter.get('/logs',
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authenticate,
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ensureUserHasRight(UserRight.MANAGE_LOGS),
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getLogsValidator,
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asyncMiddleware(getLogs)
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)
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// ---------------------------------------------------------------------------
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export {
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logsRouter
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}
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// ---------------------------------------------------------------------------
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async function getLogs (req: express.Request, res: express.Response) {
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const logFiles = await readdir(CONFIG.STORAGE.LOG_DIR)
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const sortedLogFiles = await mtimeSortFilesDesc(logFiles, CONFIG.STORAGE.LOG_DIR)
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let currentSize = 0
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const startDate = new Date(req.query.startDate)
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const endDate = req.query.endDate ? new Date(req.query.endDate) : new Date()
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const level: LogLevel = req.query.level || 'info'
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let output = ''
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for (const meta of sortedLogFiles) {
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const path = join(CONFIG.STORAGE.LOG_DIR, meta.file)
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const result = await getOutputFromFile(path, startDate, endDate, level, currentSize)
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if (!result.output) break
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output = output + result.output
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currentSize = result.currentSize
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if (currentSize > MAX_LOGS_OUTPUT_CHARACTERS) break
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}
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return res.json(output).end()
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}
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function getOutputFromFile (path: string, startDate: Date, endDate: Date, level: LogLevel, currentSize: number) {
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const startTime = startDate.getTime()
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const endTime = endDate.getTime()
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const logsLevel: { [ id in LogLevel ]: number } = {
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debug: 0,
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info: 1,
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warn: 2,
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error: 3
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}
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return new Promise<{ output: string, currentSize: number }>(res => {
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const stream = createReadStream(path)
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let output = ''
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stream.once('close', () => res({ output, currentSize }))
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const rl = createInterface({
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input: stream
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})
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rl.on('line', line => {
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const log = JSON.parse(line)
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const logTime = new Date(log.timestamp).getTime()
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if (logTime >= startTime && logTime <= endTime && logsLevel[log.level] >= logsLevel[level]) {
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output += line
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currentSize += line.length
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if (currentSize > MAX_LOGS_OUTPUT_CHARACTERS) stream.close()
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}
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})
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})
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}
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