Ensure consistent JSON output with previous version of the API for datetime element.

sys.path.append(os.path.join(_runPath, ".."))

from bson               import json_util

from bson.json_util import DEFAULT_JSON_OPTIONS

DEFAULT_JSON_OPTIONS.datetime_representation = 2

from dateutil.parser    import parse      as parse_datetime

from flask              import Flask, request, Response, render_template

from functools          import wraps

from tornado.httpserver import HTTPServer

from tornado.ioloop     import IOLoop

from tornado.wsgi       import WSGIContainer

import datetime

import lib.CVEs          as cves

import lib.DatabaseLayer as db

from lib.Config import Configuration

def convertDatetime(dct=None):

  for key, val in dct.items():

    if isinstance(val, datetime.datetime):

      dct[key] = val.isoformat()

  return dct

class APIError(Exception):

  def __init__(self, message, status=500):

    self.message = message

  def addRoute(self, route):

    self.app.add_url_rule(route['r'], view_func=route['f'], methods=route['m'])

  #############

  # Decorator #

  #############

          if type(data) is not str:

            if type(data) is tuple:

              data = list(data)

              data[0] = json.dumps(data[0], indent=2, sort_keys=True, default=json_util.default)

              data[0] = json.dumps(convertDatetime(dct=data[0]), indent=4, sort_keys=True, default=json_util.default)

            else:

              data = (json.dumps(data, indent=2, sort_keys=True, default=json_util.default), 200)

              data = (json.dumps(convertDatetime(dct=data), indent=4, sort_keys=True, default=json_util.default), 200)

          return Response(data[0], mimetype=returnType), data[1]

      except:

        pass

    value=self.htmlDecode(value)

    regex = re.compile(re.escape(value), re.I)

    data = {'cves': db.via4Linked(key, regex)}

    cvssList=[float(x['cvss']) for x in data['cves'] if 'cvss' in x]

    cvssList=[float(x['cvss']) for x in data['cves'] if x.get('cvss')]

    if cvssList:

        data['stats']={'maxCVSS': max(cvssList), 'minCVSS': min(cvssList),'count':len(data['cves'])}

    else: