/usr/lib/python2.7/dist-packages/crank/dispatchstate.py is in python-crank 0.7.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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This module implements the :class:`DispatchState` class
"""
from crank.util import default_path_translator, noop_translation
try:
string_type = basestring
except NameError: # pragma: no cover
string_type = str
class DispatchState(object):
"""
This class keeps around all the pertainent info for the state
of the dispatch as it traverses through the tree. This allows
us to attach things like routing args and to keep track of the
path the controller takes along the system.
Arguments:
request
object, must have a path_info attribute if path_info is not provided
dispatcher
dispatcher object to get the ball rolling
params
parameters to pass into the dispatch state will use request.params
path_info
pre-split list of path elements, will use request.pathinfo if not used
strip_extension
Whenever crank should strip the url extension or not resolving the path
path_translator
Function used to perform path escaping when looking for controller methods,
can be None to perform no escaping or True to use default escaping function.
"""
def __init__(self, request, dispatcher=None, params=None, path_info=None,
ignore_parameters=None, strip_extension=True, path_translator=None):
path = path_info
if path is None:
path = request.path_info[1:]
path = path.split('/')
elif isinstance(path, string_type):
path = path.split('/')
try:
if not path[0]:
path = path[1:]
except IndexError:
pass
try:
while not path[-1]:
path = path[:-1]
except IndexError:
pass
if path_translator is None:
path_translator = noop_translation
elif path_translator is True:
path_translator = default_path_translator
self.request = request
self.extension = None
self.path_translator = path_translator
#rob the extension
if strip_extension and len(path) > 0 and '.' in path[-1]:
end = path[-1]
end, ext = end.rsplit('.', 1)
self.extension = ext
path[-1] = end
self.path = path
if params is not None:
self.params = params
else:
self.params = request.params
#remove the ignore params from self.params
if ignore_parameters:
remove_params = ignore_parameters
for param in remove_params:
if param in self.params:
del self.params[param]
self.controller = None
self.controller_path = []
self.routing_args = {}
self.method = None
self.remainder = None
self.dispatcher = dispatcher
self.add_controller('/', dispatcher)
self._notfound_stack = []
def add_controller(self, location, controller):
"""Add a controller object to the stack"""
self.controller = controller
self.controller_path.append((location, controller))
def add_method(self, method, remainder):
"""Add the final method that will be called in the _call method"""
self.method = method
self.remainder = remainder
def add_routing_args(self, current_path, remainder, fixed_args, var_args):
"""
Add the "intermediate" routing args for a given controller mounted
at the current_path
"""
i = 0
for i, arg in enumerate(fixed_args):
if i >= len(remainder):
break
self.routing_args[arg] = remainder[i]
remainder = remainder[i:]
if var_args and remainder:
self.routing_args[current_path] = remainder
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