root_uris.py
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root_uris.py
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	import urlparse
	from application import log

	from xcap.errors import ResourceNotFound
	from xcap.config import ConfigFile

	configuration = ConfigFile()

	def list_contains_uri(uris, uri):
	for u in uris:
	if u == uri:
	return True
	if uri.startswith(u) or u.startswith(uri):
	log.warn("XCAP Root URI rejected: %r (looks like %r)" % (uri, u))
	return True

	class XCAPRootURIs(tuple):
	"""Configuration data type. A tuple of defined XCAP Root URIs is extracted from
	the configuration file."""
	def __new__(typ):
	uris = []
	def add(uri):
	scheme, host, path, params, query, fragment = urlparse.urlparse(uri)
	if not scheme or not host or scheme not in ("http", "https"):
	log.warn("Invalid XCAP Root URI: %r" % uri)
	elif not list_contains_uri(uris, uri):
	uris.append(uri)
	for uri in configuration.get_values_unique('Server', 'root'):
	add(uri)
	if not uris:
	import socket
	add('http://' + socket.getfqdn())
	if not uris:
	raise ResourceNotFound("At least one XCAP Root URI must be defined")
	return tuple(uris)

	root_uris = XCAPRootURIs()
	print 'Supported Root URIs: %s' % ', '.join(root_uris)