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#! /usr/bin/env python
# -*- coding: utf-8 -*-
import os
import logging
from datetime import datetime
from werkzeug.security import generate_password_hash
from bootstrap import application, db, conf, set_logging
from flask_script import Manager
from flask_migrate import Migrate, MigrateCommand
import web.models
from web.controllers import UserController
logger = logging.getLogger('manager')
Migrate(application, db)
manager = Manager(application)
manager.add_command('db', MigrateCommand)
@manager.command
def db_empty():
"Will drop every datas stocked in db."
with application.app_context():
web.models.db_empty(db)
@manager.command
def db_create():
"Will create the database from conf parameters."
admin = {'is_admin': True, 'is_api': True, 'is_active': True,
'nickname': 'admin',
'pwdhash': generate_password_hash(
os.environ.get("ADMIN_PASSWORD", "password"))}
with application.app_context():
db.create_all()
UserController(ignore_context=True).create(**admin)
@manager.command
def create_admin(nickname, password):
"Will create an admin user."
admin = {'is_admin': True, 'is_api': True, 'is_active': True,
'nickname': nickname,
'pwdhash': generate_password_hash(password)}
with application.app_context():
UserController(ignore_context=True).create(**admin)
@manager.command
def fetch_asyncio(user_id=None, feed_id=None):
"Crawl the feeds with asyncio."
import asyncio
with application.app_context():
from crawler import default_crawler
filters = {}
filters['is_active'] = True
filters['automatic_crawling'] = True
if None is not user_id:
filters['id'] = user_id
users = UserController().read(**filters).all()
try:
feed_id = int(feed_id)
except:
feed_id = None
loop = asyncio.get_event_loop()
queue = asyncio.Queue(maxsize=3, loop=loop)
producer_coro = default_crawler.retrieve_feed(queue, users, feed_id)
consumer_coro = default_crawler.insert_articles(queue, 1)
logger.info('Starting crawler.')
start = datetime.now()
loop.run_until_complete(asyncio.gather(producer_coro, consumer_coro))
end = datetime.now()
loop.close()
logger.info('Crawler finished in {} seconds.' \
.format((end - start).seconds))
if __name__ == '__main__':
manager.run()
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