lovevn

from flask import Flask, request, redirect, url_for, make_response, abort
from werkzeug import secure_filename
from pymongo import MongoClient
from bson.objectid import ObjectId
from gridfs import GridFS
from gridfs.errors import NoFile

ALLOWED_EXTENSIONS = set(['txt', 'pdf', 'png', 'jpg', 'jpeg', 'gif'])
DB = MongoClient().pdfs
FS = GridFS(DB)