Fix numerous encoding issues. Fixes #1307. Fixes #1479

web/pgadmin/tools/maintenance/__init__.py

@@ -9,7 +9,7 @@
 
 """A blueprint module implementing the maintenance tool for vacuum"""
 
-import json
+import simplejson as json
 
 from flask import url_for, Response, render_template, request, current_app
 from flask_babel import gettext as _
@@ -171,9 +171,9 @@ def create_maintenance_job(sid, did):
     if request.form:
         # Convert ImmutableDict to dict
         data = dict(request.form)
-        data = json.loads(data['data'][0])
+        data = json.loads(data['data'][0], encoding='utf-8')
     else:
-        data = json.loads(request.data.decode())
+        data = json.loads(request.data, encoding='utf-8')
 
     index_name = None