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# GNU MediaGoblin -- federated, autonomous media hosting
# Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import logging
from urllib.parse import urlparse
from werkzeug.routing import Map, Rule
from mediagoblin.tools.common import import_component
_log = logging.getLogger(__name__)
url_map = Map()
class MGRoute(Rule):
def __init__(self, endpoint, url, controller, match_slash=True):
Rule.__init__(self, url, endpoint=endpoint)
self.gmg_controller = controller
self.match_slash = match_slash
def empty(self):
new_rule = Rule.empty(self)
new_rule.gmg_controller = self.gmg_controller
return new_rule
def match(self, path, *args, **kwargs):
if not (self.match_slash or path.endswith("/")):
path = path + "/"
return super().match(path, *args, **kwargs)
def endpoint_to_controller(rule):
endpoint = rule.endpoint
view_func = rule.gmg_controller
_log.debug(f'endpoint: {endpoint} view_func: {view_func}')
# import the endpoint, or if it's already a callable, call that
if isinstance(view_func, str):
view_func = import_component(view_func)
rule.gmg_controller = view_func
return view_func
def add_route(endpoint, url, controller, *args, **kwargs):
"""
Add a route to the url mapping
"""
url_map.add(MGRoute(endpoint, url, controller, *args, **kwargs))
def mount(mountpoint, routes):
"""
Mount a bunch of routes to this mountpoint
"""
for endpoint, url, controller in routes:
url = "{}/{}".format(mountpoint.rstrip('/'), url.lstrip('/'))
add_route(endpoint, url, controller)
def extract_url_arguments(url, urlmap):
"""
This extracts the URL arguments from a given URL
"""
parsed_url = urlparse(url)
map_adapter = urlmap.bind(
server_name=parsed_url.netloc,
script_name=parsed_url.path,
url_scheme=parsed_url.scheme,
path_info=parsed_url.path
)
return map_adapter.match()[1]
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