def basic_authentication():
""" Tries to authenticate using the Authorization header.
"""
authorization = flask.request.headers.get("Authorization")
if authorization and authorization.startswith("Basic "):
encoded = authorization.replace("Basic ", "")
user_email, password = base64.b64decode(encoded).split(b":", 1)
user = models.User.query.get(user_email.decode("utf8"))
if nginx.check_credentials(user, password.decode('utf-8'),
flask.request.remote_addr, "web"):
response = flask.Response()
response.headers["X-User"] = user.email
return response
response = flask.Response(status=401)
response.headers["WWW-Authenticate"] = 'Basic realm="Login Required"'
return response
def basic_authentication():
""" Tries to authenticate using the Authorization header.
"""
client_ip = flask.request.headers.get('X-Real-IP',
flask.request.remote_addr)
if utils.limiter.should_rate_limit_ip(client_ip):
response = flask.Response(status=401)
response.headers[
"WWW-Authenticate"] = 'Basic realm="Authentication rate limit from one source exceeded"'
response.headers['Retry-After'] = '60'
return response
authorization = flask.request.headers.get("Authorization")
if authorization and authorization.startswith("Basic "):
encoded = authorization.replace("Basic ", "")
user_email, password = base64.b64decode(encoded).split(b":", 1)
user_email = user_email.decode("utf8")
if utils.limiter.should_rate_limit_user(user_email, client_ip):
response = flask.Response(status=401)
response.headers[
"WWW-Authenticate"] = 'Basic realm="Authentication rate limit for this username exceeded"'
response.headers['Retry-After'] = '60'
return response
try:
user = models.User.query.get(
user_email) if '@' in user_email else None
except sqlalchemy.exc.StatementError as exc:
exc = str(exc).split('\n', 1)[0]
app.logger.warn(f'Invalid user {user_email!r}: {exc}')
else:
if user is not None and nginx.check_credentials(
user, password.decode('utf-8'), client_ip, "web"):
response = flask.Response()
response.headers[
"X-User"] = models.IdnaEmail.process_bind_param(
flask_login, user.email, "")
utils.limiter.exempt_ip_from_ratelimits(client_ip)
return response
# We failed check_credentials
utils.limiter.rate_limit_user(
user_email,
client_ip) if user else utils.limiter.rate_limit_ip(client_ip)
response = flask.Response(status=401)
response.headers["WWW-Authenticate"] = 'Basic realm="Login Required"'
return response