--- a
+++ b/src/cdplugins/pycommon/routing.py
@@ -0,0 +1,172 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2014-2015 Thomas Amland
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+from __future__ import print_function
+
+import re
+import sys
+from urlparse import urlsplit, parse_qs
+from urllib import urlencode
+
+try:
+ import xbmc
+ import xbmcaddon
+ _addon_id = xbmcaddon.Addon().getAddonInfo('id')
+
+ def log(msg):
+ msg = "[%s][routing] %s" % (_addon_id, msg)
+ xbmc.log(msg, level=xbmc.LOGDEBUG)
+except ImportError:
+ def log(msg):
+ print(msg, file=sys.stderr)
+
+
+class RoutingError(Exception):
+ pass
+
+
+class Plugin(object):
+ """
+ :ivar handle: The plugin handle from kodi
+ :type handle: int
+
+ :ivar args: The parsed query string.
+ :type args: dict of byte strings
+ """
+
+ def __init__(self, base_url=None):
+ self._rules = {} # function to list of rules
+ self.handle = -1
+ #self.handle = int(sys.argv[1]) if sys.argv[1].isdigit() else -1
+ self.args = {}
+ self.base_url = base_url
+ if self.base_url is None:
+ self.base_url = "plugin://" + xbmcaddon.Addon().getAddonInfo('id')
+
+ def route_for(self, path):
+ """
+ Returns the view function for path.
+
+ :type path: byte string.
+ """
+ if path.startswith(self.base_url):
+ path = path.split(self.base_url, 1)[1]
+
+ for view_fun, rules in self._rules.iteritems():
+ for rule in rules:
+ if rule.match(path) is not None:
+ return view_fun
+ return None
+
+ def url_for(self, func, *args, **kwargs):
+ """
+ Construct and returns an URL for view function with give arguments.
+ """
+ if func in self._rules:
+ for rule in self._rules[func]:
+ path = rule.make_path(*args, **kwargs)
+ if path is not None:
+ return self.url_for_path(path)
+ raise RoutingError("No known paths to '{0}' with args {1} and "
+ "kwargs {2}".format(func.__name__, args, kwargs))
+
+ def url_for_path(self, path):
+ """
+ Returns the complete URL for a path.
+ """
+ path = path if path.startswith('/') else '/' + path
+ return self.base_url + path
+
+ def route(self, pattern):
+ """ Register a route. """
+ def decorator(func):
+ self.add_route(func, pattern)
+ return func
+ return decorator
+
+ def add_route(self, func, pattern):
+ """ Register a route. """
+ rule = UrlRule(pattern)
+ if func not in self._rules:
+ self._rules[func] = []
+ self._rules[func].append(rule)
+
+ def run(self, argv=sys.argv):
+ if len(argv) > 2:
+ self.args = parse_qs(argv[2].lstrip(b'?'))
+ path = urlsplit(argv[0]).path or '/'
+ self._dispatch(path)
+
+ def redirect(self, path):
+ self._dispatch(path)
+
+ def _dispatch(self, path):
+ for view_func, rules in self._rules.iteritems():
+ for rule in rules:
+ kwargs = rule.match(path)
+ if kwargs is not None:
+ log("Dispatching to '%s', args: %s" % (view_func.__name__, kwargs))
+ view_func(**kwargs)
+ return
+ raise RoutingError('No route to path "%s"' % path)
+
+
+class UrlRule(object):
+
+ def __init__(self, pattern):
+ kw_pattern = r'<(?:[^:]+:)?([A-z]+)>'
+ self._pattern = re.sub(kw_pattern, '{\\1}', pattern)
+ self._keywords = re.findall(kw_pattern, pattern)
+
+ p = re.sub('<([A-z]+)>', '<string:\\1>', pattern)
+ p = re.sub('<string:([A-z]+)>', '(?P<\\1>[^/]+?)', p)
+ p = re.sub('<path:([A-z]+)>', '(?P<\\1>.*)', p)
+ self._compiled_pattern = p
+ self._regex = re.compile('^' + p + '$')
+
+ def match(self, path):
+ """
+ Check if path matches this rule. Returns a dictionary of the extracted
+ arguments if match, otherwise None.
+ """
+ # match = self._regex.search(urlsplit(path).path)
+ match = self._regex.search(path)
+ return match.groupdict() if match else None
+
+ def make_path(self, *args, **kwargs):
+ """Construct a path from arguments."""
+ if args and kwargs:
+ return None # can't use both args and kwargs
+ if args:
+ # Replace the named groups %s and format
+ try:
+ return re.sub(r'{[A-z]+}', r'%s', self._pattern) % args
+ except TypeError:
+ return None
+
+ # We need to find the keys from kwargs that occur in our pattern.
+ # Unknown keys are pushed to the query string.
+ url_kwargs = dict(((k, v) for k, v in kwargs.items() if k in self._keywords))
+ qs_kwargs = dict(((k, v) for k, v in kwargs.items() if k not in self._keywords))
+
+ query = '?' + urlencode(qs_kwargs) if qs_kwargs else ''
+ try:
+ return self._pattern.format(**url_kwargs) + query
+ except KeyError:
+ return None
+
+ def __str__(self):
+ return b"Rule(pattern=%s, keywords=%s)" % (self._pattern, self._keywords)