2 files changed, 57 insertions, 0 deletions

diff --git a/server/middlewares/validators/index.ts b/server/middlewares/validators/index.ts
index b0ad04819..ffadb3b49 100644
--- a/server/middlewares/validators/index.ts
+++ b/server/middlewares/validators/index.ts
@@ -10,6 +10,7 @@ export * from './express'
 export * from './feeds'
 export * from './follows'
 export * from './jobs'
+export * from './metrics'
 export * from './logs'
 export * from './oembed'
 export * from './pagination'
diff --git a/server/middlewares/validators/metrics.ts b/server/middlewares/validators/metrics.ts
new file mode 100644
index 000000000..b1dbec603
--- /dev/null
+++ b/server/middlewares/validators/metrics.ts
@@ -0,0 +1,56 @@
+import express from 'express'
+import { body } from 'express-validator'
+import { isValidPlayerMode } from '@server/helpers/custom-validators/metrics'
+import { isIdOrUUIDValid, toCompleteUUID } from '@server/helpers/custom-validators/misc'
+import { CONFIG } from '@server/initializers/config'
+import { HttpStatusCode, PlaybackMetricCreate } from '@shared/models'
+import { logger } from '../../helpers/logger'
+import { areValidationErrors, doesVideoExist } from './shared'
+
+const addPlaybackMetricValidator = [
+  body('resolution')
+    .isInt({ min: 0 }).withMessage('Invalid resolution'),
+  body('fps')
+    .optional()
+    .isInt({ min: 0 }).withMessage('Invalid fps'),
+  body('playerMode')
+    .custom(isValidPlayerMode).withMessage('Invalid playerMode'),
+
+  body('resolutionChanges')
+    .isInt({ min: 0 }).withMessage('Invalid resolutionChanges'),
+
+  body('errors')
+    .isInt({ min: 0 }).withMessage('Invalid errors'),
+
+  body('downloadedBytesP2P')
+    .isInt({ min: 0 }).withMessage('Invalid downloadedBytesP2P'),
+  body('downloadedBytesHTTP')
+    .isInt({ min: 0 }).withMessage('Invalid downloadedBytesHTTP'),
+
+  body('uploadedBytesP2P')
+    .isInt({ min: 0 }).withMessage('Invalid uploadedBytesP2P'),
+
+  body('videoId')
+    .customSanitizer(toCompleteUUID)
+    .optional()
+    .custom(isIdOrUUIDValid),
+
+  async (req: express.Request, res: express.Response, next: express.NextFunction) => {
+    logger.debug('Checking addPlaybackMetricValidator parameters.', { parameters: req.query })
+
+    if (!CONFIG.OPEN_TELEMETRY.METRICS.ENABLED) return res.sendStatus(HttpStatusCode.NO_CONTENT_204)
+
+    const body: PlaybackMetricCreate = req.body
+
+    if (areValidationErrors(req, res)) return
+    if (!await doesVideoExist(body.videoId, res, 'only-immutable-attributes')) return
+
+    return next()
+  }
+]
+
+// ---------------------------------------------------------------------------
+
+export {
+  addPlaybackMetricValidator
+}