Updated uploadController.js

Filters input in Manage Uploads will now display error if it's filled
with invalid filter/sort keys.
SQLITE_ERROR will also now be forwarded to users if they're moderators.
The expectation is to only display it when used through Manage Uploads.

controllers/uploadController.js

@@ -835,6 +835,9 @@ self.list = async (req, res) => {
       .select('id', 'username')
   }
 
+  if (filters && !(_filters.uploaders.length || _filters.names.length || _filters.ips.length || _filters.flags.nouser || _filters.flags.noip || _orderBy.length))
+    return res.json({ success: false, description: 'No valid filter or sort keys were used. Please confirm the valid keys through the Help? button!' })
+
   function filter () {
     if (req.params.id !== undefined)
       this.where('albumid', req.params.id)
@@ -861,6 +864,7 @@ self.list = async (req, res) => {
       })
   }
 
+  try {
     // Query uploads count for pagination
     const count = await db.table('files')
       .where(filter)
@@ -946,6 +950,25 @@ self.list = async (req, res) => {
       users[user.id] = user.username
 
     return res.json({ success: true, files, count, users, basedomain })
+  } catch (error) {
+    // If moderator, capture SQLITE_ERROR and use its error message for the response's description
+    let errorString
+    if (ismoderator && error.code === 'SQLITE_ERROR') {
+      const match = error.message.match(/SQLITE_ERROR: .*$/)
+      errorString = match && match[0]
+    }
+
+    // If not proper SQLITE_ERROR, log to console
+    if (!errorString) {
+      logger.error(error)
+      res.status(500) // Use 500 status code
+    }
+
+    return res.json({
+      success: false,
+      description: errorString || 'An unexpected error occurred. Try again?'
+    })
+  }
 }
 
 module.exports = self