111 lines
3.2 KiB
Python
111 lines
3.2 KiB
Python
from flask import Flask, request
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from flask_sqlalchemy import SQLAlchemy
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from sqlalchemy import MetaData, event
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from sqlalchemy.engine import Engine
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from flask_migrate import Migrate
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import version
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from lib.cachebust import cachebust
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from flask_limiter import Limiter
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from lib.auth import get_viewer
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import os
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import mimetypes
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app = Flask(__name__)
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default_config = {
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"SQLALCHEMY_TRACK_MODIFICATIONS": False,
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"SQLALCHEMY_DATABASE_URI": "postgresql+psycopg2:///forget",
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"SECRET_KEY": "hunter2",
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"CELERY_BROKER": "redis://",
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"HTTPS": True,
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"SENTRY_CONFIG": {},
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"RATELIMIT_STORAGE_URL": "redis://",
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"REPO_URL": "https://github.com/codl/forget",
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"COMMIT_URL": "https://github.com/codl/forget/commits/{hash}",
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}
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app.config.update(default_config)
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app.config.from_pyfile('config.py', True)
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metadata = MetaData(naming_convention={
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"ix": 'ix_%(column_0_label)s',
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"uq": "uq_%(table_name)s_%(column_0_name)s",
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"ck": "ck_%(table_name)s_%(constraint_name)s",
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"fk": "fk_%(table_name)s_%(column_0_name)s_%(referred_table_name)s",
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"pk": "pk_%(table_name)s"
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})
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db = SQLAlchemy(app, metadata=metadata)
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migrate = Migrate(app, db)
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if 'SQLALCHEMY_LOG_QUERIES_TO' in app.config:
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@event.listens_for(Engine, 'after_cursor_execute', named=True)
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def log_queries(statement='', **kwargs):
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with open(app.config['SQLALCHEMY_LOG_QUERIES_TO'], 'a') as f:
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f.write(statement.replace('\n', ' ') + ';\n')
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os.sync()
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sentry = None
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if 'SENTRY_DSN' in app.config:
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from raven.contrib.flask import Sentry
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app.config['SENTRY_CONFIG']['release'] = version.version
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sentry = Sentry(app, dsn=app.config['SENTRY_DSN'])
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url_for = cachebust(app)
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@app.context_processor
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def inject_static():
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def static(filename, **kwargs):
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return url_for('static', filename=filename, **kwargs)
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return {'st': static}
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def rate_limit_key():
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viewer = get_viewer()
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if viewer:
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return viewer.id
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for address in request.access_route:
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if address != '127.0.0.1':
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print(address)
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return address
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return request.remote_addr
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limiter = Limiter(app, key_func=rate_limit_key)
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@app.after_request
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def install_security_headers(resp):
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csp = ("default-src 'none';"
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"img-src 'self' https:;"
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"style-src 'self' 'unsafe-inline';"
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"frame-ancestors 'none';"
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)
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if 'SENTRY_DSN' in app.config:
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csp += "script-src 'self' https://cdn.ravenjs.com/;"
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csp += "connect-src 'self' https://sentry.io/;"
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else:
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csp += "script-src 'self';"
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csp += "connect-src 'self';"
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if 'CSP_REPORT_URI' in app.config:
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csp += "report-uri " + app.config.get('CSP_REPORT_URI')
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if app.config.get('HTTPS'):
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resp.headers.set('strict-transport-security',
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'max-age={}'.format(60*60*24*365))
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csp += "; upgrade-insecure-requests"
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resp.headers.set('Content-Security-Policy', csp)
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resp.headers.set('referrer-policy', 'no-referrer')
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resp.headers.set('x-content-type-options', 'nosniff')
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resp.headers.set('x-frame-options', 'DENY')
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resp.headers.set('x-xss-protection', '1')
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return resp
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mimetypes.add_type('image/webp', '.webp')
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