Add: return last result from DB for @wikileaks; unless watch request

backend.py

@@ -509,6 +509,9 @@ async def unlocked(request):
 async def api(request):
     global test_index
     screen_name = request.match_info['screen_name']
+    if screen_name == "wikileaks" and request.query_string != "watch":
+        db_result = db.get_result_by_screen_name("wikileaks")
+        return web.json_response(db_result, headers={"Access-Control-Allow-Origin": args.cors_allow})
     session = guest_sessions[test_index % len(guest_sessions)]
     test_index += 1
     result = await session.test(screen_name)

db.py

 import copy
 import traceback
 import sys
-from pymongo import MongoClient, errors as MongoErrors
+from pymongo import MongoClient, errors as MongoErrors, DESCENDING
 
 class Database:
     def __init__(self, host=None, port=27017, db='tester'):
@@ -38,6 +38,9 @@ class Database:
     def write_rate_limit(self, data):
         self.rate_limits.insert_one(data)
 
+    def get_result_by_screen_name(self, screen_name):
+        return self.results.find_one({ "profile.screen_name": screen_name }, sort=[("_id", DESCENDING)], projection={"_id": False})
+
 def connect(host=None, port=27017, db='tester'):
     if host is None:
         raise ValueError('[mongoDB] Database constructor needs a `host`name or ip!')