1 files changed, 46 insertions, 0 deletions

diff --git a/server/server/middlewares/validators/themes.ts b/server/server/middlewares/validators/themes.ts
new file mode 100644
index 000000000..ec7ce3b4f
--- /dev/null
+++ b/server/server/middlewares/validators/themes.ts
@@ -0,0 +1,46 @@
+import express from 'express'
+import { param } from 'express-validator'
+import { HttpStatusCode } from '@peertube/peertube-models'
+import { isSafePath } from '../../helpers/custom-validators/misc.js'
+import { isPluginNameValid, isPluginStableOrUnstableVersionValid } from '../../helpers/custom-validators/plugins.js'
+import { PluginManager } from '../../lib/plugins/plugin-manager.js'
+import { areValidationErrors } from './shared/index.js'
+
+const serveThemeCSSValidator = [
+  param('themeName')
+    .custom(isPluginNameValid),
+  param('themeVersion')
+    .custom(isPluginStableOrUnstableVersionValid),
+  param('staticEndpoint')
+    .custom(isSafePath),
+
+  (req: express.Request, res: express.Response, next: express.NextFunction) => {
+    if (areValidationErrors(req, res)) return
+
+    const theme = PluginManager.Instance.getRegisteredThemeByShortName(req.params.themeName)
+
+    if (!theme || theme.version !== req.params.themeVersion) {
+      return res.fail({
+        status: HttpStatusCode.NOT_FOUND_404,
+        message: 'No theme named ' + req.params.themeName + ' was found with version ' + req.params.themeVersion
+      })
+    }
+
+    if (theme.css.includes(req.params.staticEndpoint) === false) {
+      return res.fail({
+        status: HttpStatusCode.NOT_FOUND_404,
+        message: 'No static endpoint was found for this theme'
+      })
+    }
+
+    res.locals.registeredPlugin = theme
+
+    return next()
+  }
+]
+
+// ---------------------------------------------------------------------------
+
+export {
+  serveThemeCSSValidator
+}