config.py

import os

basedir = os.path.abspath(os.path.dirname(__file__))


class Config:
    SECRET_KEY = os.environ.get('SECRET_KEY') or 'hard to guess string'
    SSL_DISABLE = False
    REDIS_URL = os.environ['REDIS_URL']
    REDIS_CHAN = 'karel'

    @staticmethod
    def init_app(app):
        pass


class DevelopmentConfig(Config):
    DEBUG = True
    @classmethod
    def init_app(cls, app):
        # log to file
        import logging
        from logging import FileHandler
        file_handler = FileHandler('/var/log/chess_server.log')
        file_handler.setLevel(logging.INFO)
        app.logger.addHandler(file_handler)


class TestingConfig(Config):
    TESTING = True
    WTF_CSRF_ENABLED = False
    SERVER_NAME = 'localhost:5000'


class ProductionConfig(Config):
    @classmethod
    def init_app(cls, app):
        Config.init_app(app)


class HerokuConfig(ProductionConfig):
    SSL_DISABLE = bool(os.environ.get('SSL_DISABLE'))

    @classmethod
    def init_app(cls, app):
        ProductionConfig.init_app(app)

        # handle proxy server headers
        from werkzeug.contrib.fixers import ProxyFix
        app.wsgi_app = ProxyFix(app.wsgi_app)

        # log to stderr
        import logging
        from logging import StreamHandler
        file_handler = StreamHandler()
        file_handler.setLevel(logging.WARNING)
        app.logger.addHandler(file_handler)


class UnixConfig(ProductionConfig):
    @classmethod
    def init_app(cls, app):
        ProductionConfig.init_app(app)

        # log to syslog
        import logging
        from logging.handlers import SysLogHandler
        syslog_handler = SysLogHandler()
        syslog_handler.setLevel(logging.WARNING)
        app.logger.addHandler(syslog_handler)


config = {
    'development': DevelopmentConfig,
    'testing': TestingConfig,
    'production': ProductionConfig,
    'heroku': HerokuConfig,
    'unix': UnixConfig,

    'default': DevelopmentConfig
}