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|
from .core import (
abort, override_template, Pecan, Request, Response, load_app,
redirect, render, request, response
)
from .decorators import expose
from .hooks import RequestViewerHook
from .middleware.debug import DebugMiddleware
from .middleware.errordocument import ErrorDocumentMiddleware
from .middleware.recursive import RecursiveMiddleware
from .middleware.static import StaticFileMiddleware
from .routing import route
from .configuration import set_config, Config
from .configuration import _runtime_conf as conf
from . import middleware
try:
from logging.config import dictConfig as load_logging_config
except ImportError:
from logutils.dictconfig import dictConfig as load_logging_config # noqa
import six
import warnings
__all__ = [
'make_app', 'load_app', 'Pecan', 'Request', 'Response', 'request',
'response', 'override_template', 'expose', 'conf', 'set_config', 'render',
'abort', 'redirect', 'route'
]
def make_app(root, **kw):
'''
Utility for creating the Pecan application object. This function should
generally be called from the ``setup_app`` function in your project's
``app.py`` file.
:param root: A string representing a root controller object (e.g.,
"myapp.controller.root.RootController")
:param static_root: The relative path to a directory containing static
files. Serving static files is only enabled when
debug mode is set.
:param debug: A flag to enable debug mode. This enables the debug
middleware and serving static files.
:param debugger: A callable to start debugging, defaulting to the Python
debugger entry point ``pdb.post_mortem``.
:param wrap_app: A function or middleware class to wrap the Pecan app.
This must either be a wsgi middleware class or a
function that returns a wsgi application. This wrapper
is applied first before wrapping the application in
other middlewares such as Pecan's debug middleware.
This should be used if you want to use middleware to
perform authentication or intercept all requests before
they are routed to the root controller.
:param logging: A dictionary used to configure logging. This uses
``logging.config.dictConfig``.
All other keyword arguments are passed in to the Pecan app constructor.
:returns: a ``Pecan`` object.
'''
# Pass logging configuration (if it exists) on to the Python logging module
logging = kw.get('logging', {})
debug = kw.get('debug', False)
if logging:
if debug:
try:
#
# By default, Python 2.7+ silences DeprecationWarnings.
# However, if conf.app.debug is True, we should probably ensure
# that users see these types of warnings.
#
from logging import captureWarnings
captureWarnings(True)
warnings.simplefilter("default", DeprecationWarning)
except ImportError:
# No captureWarnings on Python 2.6, DeprecationWarnings are on
pass
if isinstance(logging, Config):
logging = logging.to_dict()
if 'version' not in logging:
logging['version'] = 1
load_logging_config(logging)
# Instantiate the WSGI app by passing **kw onward
app = Pecan(root, **kw)
# Optionally wrap the app in another WSGI app
wrap_app = kw.get('wrap_app', None)
if wrap_app:
app = wrap_app(app)
# Configuration for serving custom error messages
errors = kw.get('errors', getattr(conf.app, 'errors', {}))
if errors:
app = middleware.errordocument.ErrorDocumentMiddleware(app, errors)
# Included for internal redirect support
app = middleware.recursive.RecursiveMiddleware(app)
# When in debug mode, load our exception dumping middleware
static_root = kw.get('static_root', None)
if debug:
debugger = kw.get('debugger', None)
debugger_kwargs = {}
if six.callable(debugger):
debugger_kwargs['debugger'] = debugger
elif debugger:
warnings.warn(
"`app.debugger` is not callable, ignoring",
RuntimeWarning
)
app = middleware.debug.DebugMiddleware(app, **debugger_kwargs)
# Support for serving static files (for development convenience)
if static_root:
app = middleware.static.StaticFileMiddleware(app, static_root)
elif static_root:
warnings.warn(
"`static_root` is only used when `debug` is True, ignoring",
RuntimeWarning
)
if hasattr(conf, 'requestviewer'):
warnings.warn(''.join([
"`pecan.conf.requestviewer` is deprecated. To apply the ",
"`RequestViewerHook` to your application, add it to ",
"`pecan.conf.app.hooks` or manually in your project's `app.py` ",
"file."]),
DeprecationWarning
)
return app
|
