3 files changed, 66 insertions, 6 deletions

diff --git a/server/controllers/api/server/logs.ts b/server/controllers/api/server/logs.ts
index dfd5491aa..8aa4b7190 100644
--- a/server/controllers/api/server/logs.ts
+++ b/server/controllers/api/server/logs.ts
@@ -1,6 +1,7 @@
 import express from 'express'
 import { readdir, readFile } from 'fs-extra'
 import { join } from 'path'
+import { isArray } from '@server/helpers/custom-validators/misc'
 import { logger, mtimeSortFilesDesc } from '@server/helpers/logger'
 import { LogLevel } from '../../../../shared/models/server/log-level.type'
 import { UserRight } from '../../../../shared/models/users'
@@ -51,20 +52,27 @@ async function getLogs (req: express.Request, res: express.Response) {
     startDateQuery: req.query.startDate,
     endDateQuery: req.query.endDate,
     level: req.query.level || 'info',
+    tagsOneOf: req.query.tagsOneOf,
     nameFilter: logNameFilter
   })
 
-  return res.json(output).end()
+  return res.json(output)
 }
 
 async function generateOutput (options: {
   startDateQuery: string
   endDateQuery?: string
+
   level: LogLevel
   nameFilter: RegExp
+  tagsOneOf?: string[]
 }) {
   const { startDateQuery, level, nameFilter } = options
 
+  const tagsOneOf = Array.isArray(options.tagsOneOf) && options.tagsOneOf.length !== 0
+    ? new Set(options.tagsOneOf)
+    : undefined
+
   const logFiles = await readdir(CONFIG.STORAGE.LOG_DIR)
   const sortedLogFiles = await mtimeSortFilesDesc(logFiles, CONFIG.STORAGE.LOG_DIR)
   let currentSize = 0
@@ -80,7 +88,7 @@ async function generateOutput (options: {
     const path = join(CONFIG.STORAGE.LOG_DIR, meta.file)
     logger.debug('Opening %s to fetch logs.', path)
 
-    const result = await getOutputFromFile(path, startDate, endDate, level, currentSize)
+    const result = await getOutputFromFile({ path, startDate, endDate, level, currentSize, tagsOneOf })
     if (!result.output) break
 
     output = result.output.concat(output)
@@ -92,9 +100,20 @@ async function generateOutput (options: {
   return output
 }
 
-async function getOutputFromFile (path: string, startDate: Date, endDate: Date, level: LogLevel, currentSize: number) {
+async function getOutputFromFile (options: {
+  path: string
+  startDate: Date
+  endDate: Date
+  level: LogLevel
+  currentSize: number
+  tagsOneOf: Set<string>
+}) {
+  const { path, startDate, endDate, level, tagsOneOf } = options
+
   const startTime = startDate.getTime()
   const endTime = endDate.getTime()
+  let currentSize = options.currentSize
+
   let logTime: number
 
   const logsLevel: { [ id in LogLevel ]: number } = {
@@ -121,7 +140,12 @@ async function getOutputFromFile (path: string, startDate: Date, endDate: Date,
     }
 
     logTime = new Date(log.timestamp).getTime()
-    if (logTime >= startTime && logTime <= endTime && logsLevel[log.level] >= logsLevel[level]) {
+    if (
+      logTime >= startTime &&
+      logTime <= endTime &&
+      logsLevel[log.level] >= logsLevel[level] &&
+      (!tagsOneOf || lineHasTag(log, tagsOneOf))
+    ) {
       output.push(log)
 
       currentSize += line.length
@@ -135,6 +159,16 @@ async function getOutputFromFile (path: string, startDate: Date, endDate: Date,
   return { currentSize, output: output.reverse(), logTime }
 }
 
+function lineHasTag (line: { tags?: string }, tagsOneOf: Set<string>) {
+  if (!isArray(line.tags)) return false
+
+  for (const lineTag of line.tags) {
+    if (tagsOneOf.has(lineTag)) return true
+  }
+
+  return false
+}
+
 function generateLogNameFilter (baseName: string) {
   return new RegExp('^' + baseName.replace(/\.log$/, '') + '\\d*.log$')
 }
diff --git a/server/middlewares/validators/logs.ts b/server/middlewares/validators/logs.ts
index 03c1c4df1..901d8ca64 100644
--- a/server/middlewares/validators/logs.ts
+++ b/server/middlewares/validators/logs.ts
@@ -1,7 +1,8 @@
 import express from 'express'
 import { query } from 'express-validator'
+import { isStringArray } from '@server/helpers/custom-validators/search'
 import { isValidLogLevel } from '../../helpers/custom-validators/logs'
-import { isDateValid } from '../../helpers/custom-validators/misc'
+import { isDateValid, toArray } from '../../helpers/custom-validators/misc'
 import { logger } from '../../helpers/logger'
 import { areValidationErrors } from './shared'
 
@@ -11,6 +12,10 @@ const getLogsValidator = [
   query('level')
     .optional()
     .custom(isValidLogLevel).withMessage('Should have a valid level'),
+  query('tagsOneOf')
+    .optional()
+    .customSanitizer(toArray)
+    .custom(isStringArray).withMessage('Should have a valid one of tags array'),
   query('endDate')
     .optional()
     .custom(isDateValid).withMessage('Should have an end date that conforms to ISO 8601'),
diff --git a/server/tests/api/server/logs.ts b/server/tests/api/server/logs.ts
index bcd94dda3..4fa13886e 100644
--- a/server/tests/api/server/logs.ts
+++ b/server/tests/api/server/logs.ts
@@ -71,7 +71,7 @@ describe('Test logs', function () {
       expect(logsString.includes('video 5')).to.be.false
     })
 
-    it('Should get filter by level', async function () {
+    it('Should filter by level', async function () {
       this.timeout(20000)
 
       const now = new Date()
@@ -94,6 +94,27 @@ describe('Test logs', function () {
       }
     })
 
+    it('Should filter by tag', async function () {
+      const now = new Date()
+
+      const { uuid } = await server.videos.upload({ attributes: { name: 'video 6' } })
+      await waitJobs([ server ])
+
+      {
+        const body = await logsCommand.getLogs({ startDate: now, level: 'debug', tagsOneOf: [ 'toto' ] })
+        expect(body).to.have.lengthOf(0)
+      }
+
+      {
+        const body = await logsCommand.getLogs({ startDate: now, level: 'debug', tagsOneOf: [ uuid ] })
+        expect(body).to.not.have.lengthOf(0)
+
+        for (const line of body) {
+          expect(line.tags).to.contain(uuid)
+        }
+      }
+    })
+
     it('Should log ping requests', async function () {
       this.timeout(10000)