def respond(self, body):
"""Write the response body to the client. Convert it into UMCP format."""
CORE.info('Writing response...')
message = self.responseHeaders.getRawHeaders('X-UMC-Message')
message = json.loads(message and message[0] or '""')
if not isinstance(body, dict):
body = dict(result=body)
data = dict(
message=message,
status=self.code,
)
data.update(body)
body = json.dumps(data)
self.setHeader('Content-Type', 'application/json')
self.setHeader('Content-Length', '%d' % (len(body),))
if self.is_iframe_upload:
# this is a workaround to make iframe uploads work, they need the textarea field
# TODO: break API: remove
self.setHeader('Content-Type', 'text/html; charset=UTF-8')
body = b'<html><body><textarea>%s</textarea></body></html>' % (body,)
self.write(body)
self.finish()
def render(self, request):
request.single_sign_on(request.args.get('loginToken'))
targeturl = '/univention-management-console/'
query = dict((arg, value) for arg, value in request.args.iteritems() if arg not in ('loginToken', 'username', 'password'))
if query:
# HTTP FIXME: Location header does not allow a querystring in its URI
# command/lib/sso should be fixed to add e.g. language settings
targeturl += '?%s' % urlencode(query)
CORE.info('Redirecting to %s' % (targeturl))
request.responseHeaders.addRawHeader('Location', targeturl)
request.setResponseCode(303)
def render(self, resource):
"""Renders identified resource and write response"""
CORE.info('Rendering resource...')
try:
body = resource.render(self)
except NotAuthenticated:
body = None
self.setResponseCode(BAD_REQUEST_UNAUTH) # HTTP FIXME
except UnsupportedMethod:
Request.render(self, resource) # use twisteds error handling
return
if body is NOT_DONE_YET:
return
self.respond(body)
def requestReceived(self, command, path, version):
"""Processes the self"""
CORE.info('Receiving request...')
try:
# prevent twisted's processing by lowercasing method
Request.requestReceived(self, command.lower(), path, version)
finally:
self.method = command
# fix twisted's query string processing
self.__fix_twisted_query_string()
self.site = self.channel.site
self._set_default_response_headers()
try:
CORE.info('Parse request body...')
self._parse_request_payload()
except ValueError as err:
self.respond(bytes(err))
return
self._set_default_request_headers()
CORE.info('Authenticate? ...')
self._authenticate_and_process()
def render(self, request):
session = request.getSession()
acls = ACLs(session)
moduleManager = request.site.moduleManager
command = '/'.join(request.prepath[1:])
module_name = acls.get_module_providing(moduleManager, command)
if not module_name:
MODULE.warn('No module provides %s' % (command))
request.setResponseCode(BAD_REQUEST_FORBIDDEN)
return
MODULE.info('Checking ACLs for %s (%s)' % (command, module_name))
if not acls.is_command_allowed(request, command):
MODULE.warn('Command %s is not allowed' % (command))
request.setResponseCode(BAD_REQUEST_FORBIDDEN)
return
methodname = acls.get_method_name(moduleManager, module_name, command)
if not methodname:
MODULE.warn('Command %s does not exists' % (command))
request.setResponseCode(BAD_REQUEST_NOT_FOUND)
return
headers = self.get_request_header(request, methodname)
body = self.get_request_body(request)
CORE.info('Passing new request to module %s' % (module_name,))
process = self.get_process(session, module_name)
urequest = process.request(request.method, request.uri, headers, body)
urequest.addCallback(self.respond, request)
urequest.addErrback(self.failed_request, request)
return NOT_DONE_YET
def _continue_request():
CORE.info('Dispatch request ...')
Request.process(self)
