import logging

from logging.handlers import SMTPHandler, RotatingFileHandler

import os

from flask import Flask, request, current_app

from flask_sqlalchemy import SQLAlchemy

from flask_migrate import Migrate

from flask_login import LoginManager

from flask_mail import Mail

from flask_bootstrap import Bootstrap

from config import Config

db = SQLAlchemy()

migrate = Migrate()

login = LoginManager()

login.login_view = 'auth.login'

login.login_message = 'Please log in to access this page.'

mail = Mail()

bootstrap = Bootstrap()

def create_app(config_class=Config):

app = Flask(__name__)

app.config.from_object(config_class)

db.init_app(app)

migrate.init_app(app, db)

login.init_app(app)

mail.init_app(app)

bootstrap.init_app(app)

from app.errors import bp as errors_bp

app.register_blueprint(errors_bp)

from app.auth import bp as auth_bp

app.register_blueprint(auth_bp, url_prefix='/auth')

from app.main import bp as main_bp

app.register_blueprint(main_bp)

if not app.debug and not app.testing:

if app.config['MAIL_SERVER']:

auth = None

if app.config['MAIL_USERNAME'] or app.config['MAIL_PASSWORD']:

auth = (app.config['MAIL_USERNAME'], app.config['MAIL_PASSWORD'])

secure = None

if app.config['MAIL_USE_TLS']:

secure = ()

mail_handler = SMTPHandler(

mailhost=(app.config['MAIL_SERVER'], app.config['MAIL_PORT']),

fromaddr='no-reply@' + app.config['MAIL_SERVER'],

toaddrs=app.config['ADMINS'], subject='Microblog Failure',

credentials=auth, secure=secure)

mail_handler.setLevel(logging.ERROR)

app.logger.addHandler(mail_handler)

if app.config['LOG_TO_STDOUT']:

stream_handler = logging.StreamHandler()

stream_handler.setLevel(logging.INFO)

app.logger.addHandler(stream_handler)

else:

if not os.path.exists('logs'):

os.mkdir('logs')

file_handler = RotatingFileHandler('logs/microblog.log', maxBytes=10240,

backupCount=10)

file_handler.setFormatter(logging.Formatter(

'%(asctime)s %(levelname)s: %(message)s [in %(pathname)s:%(lineno)d]'))

file_handler.setLevel(logging.INFO)

app.logger.addHandler(file_handler)

app.logger.setLevel(logging.INFO)

app.logger.info('Microblog startup')

return app

from app import models