def parsing_server(self, content, farm_args, members_args):
while content:
head = str(content.pop())
if head == 'listen':
listen = str(content.pop())
if listen.endswith(';'):
listen = listen[:-1]
if ':' in listen:
listen = listen.split(':')
farm_args['ip'] = listen[0]
farm_args['port'] = listen[1]
else:
farm_args['port'] = listen
elif head == 'location':
farm_args['location'] = str(content.pop())
if str(content.pop()) == '{':
self.parsing_location(content, farm_args, members_args)
else:
logger.debug("after location expected {, instead got %s " % head)
raise "In Emily_Controller.parsing_server: after location expected {, instead got %s " % head
elif head == '}':
return True
else:
logger.debug("unknown word %s " % head)
raise "In Emily_Controller.parsing_server: unknown word %s " % head
def load_farms(self):
logger.debug("loading farms")
farms={}
conf_files = listdir(self.conf_dir)
for conf in conf_files:
if conf.endswith('.conf'):
farm_id=conf[:-5]
farms[farm_id] = self.load_farm(farm_id)
return farms
def parsing_location(content, farm_args, members_args):
while content:
head = str(content.pop())
if head == 'proxy_pass':
head = str(content.pop())
if "://" in head:
farm_args['protocol'] = head.split("://")[0]
elif head == '}':
return True
else:
logger.debug("expected proxy_pass, instead got %s " % head)
raise "In Emily_Controller.parsing_location: expected proxy_pass, instead got %s " % head
def parsing_member(content, farm_args, members_args):
head = str(content.pop())
if head[head.__len__()-1] == ';':
members_args[head[:-1]] = 1
return True
else:
weight = str(content.pop())
if weight.startswith('weight='):
members_args[head] = weight.split('=')[1]
else:
logger.debug("unknown word %s , expected ; or weight" % weight)
raise("In Emily_Controller.parsing_member: unknown word %s , expected ; or weight" % weight)
def farm_member_api(self, farm_id, member_id):
if request.method == 'GET':
return json.dumps(
self.model.get_farm_member(farm_id, member_id).__dict__)
elif request.method == 'DELETE':
return json.dumps(self.model.delete_farm_member(
farm_id, member_id))
else:
logger.debug("unknown method: {}".format(
request.method.to_string()))
raise ("in Emily_View.farm_member_api, unknown method: {}".format(
request.method.to_string()))
def parsing_upstream(self, content, farm_args, members_args):
while content:
head = str(content.pop())
if head in ['round_robin;', 'ip_hash;', 'least_conn;']:
farm_args['lb_method'] = head[:-1]
elif head == "server":
self.parsing_member(content, farm_args, members_args)
elif head == "}":
return True
else:
logger.debug("unknown word %s " % head)
raise("In Emily_Controller.parsing_upstream: unknown word %s " % head)
def request_data(request):
if request.headers['Content-Type'] == 'application/json':
return json.loads(request.data)
elif request.headers['Content-Type'] == 'text/plain':
try:
return json.loads(request.data)
except Exception:
raise Exception("couldn't parse request {} as json".format(
str(request.data)))
else:
logger.debug("unknown content type: %s" %
request.headers['Content-Type'])
raise ("unknown content type: %s" %
request.headers['Content-Type'])
def farm_members_api(self, farm_id):
if request.method == 'GET':
members_json = []
for member in self.model.get_farm_members(farm_id):
members_json.append(json.dumps(member))
return json.dumps(members_json)
elif request.method == 'POST':
args = self.request_data(request)
return make_response(self.model.create_farm_member(farm_id, args))
else:
logger.debug("unknown method: %s" % request.method.to_string())
raise ("in Emily_View.farm_members_api, unknown method: %s" %
request.method.to_string())
def farms_api(self):
if request.method == 'GET':
farms_list = []
for farm in self.model.get_farms():
farms_list.append(json.dumps(str(farm)))
return json.dumps(farms_list)
elif request.method == 'POST':
args = self.request_data(request)
res = make_response(self.model.create_farm(args))
return res.data
else:
logger.debug("unknown method: %s" % request.method.to_string())
raise ("in Emily_View.farms_api, unknown method: %s" %
request.method.to_string())
def farm_api(self, farm_id):
if request.method == 'GET':
if self.model.get_farm(farm_id):
response = self.model.get_farm(farm_id).to_json()
else:
response = json.dumps({"error": "farm not found"}), 404
elif request.method == 'PUT':
args = self.request_data(request)
response = make_response(self.model.update_farm(farm_id, args))
elif request.method == 'DELETE':
response = make_response(self.model.delete_farm(farm_id))
else:
logger.debug("unknown method: %s" % request.method.to_string())
raise ("in Emily_View.farm_api, unknown method: %s" %
request.method.to_string())
return response
def parsing_begin(self, content, farm_args, members_args):
while content:
head = str(content.pop())
if head == 'upstream':
farm_args['name'] = content.pop()
if str(content.pop()) == '{':
self.parsing_upstream(content, farm_args, members_args)
else:
logger.debug("after upstream expected {, instead got %s " % head)
raise "In Emily_Controller.parsing_begin: after upstream expected {, instead got %s " % head
elif head == 'server':
if str(content.pop()) == '{':
self.parsing_server(content, farm_args, members_args)
else:
logger.debug("after server expected {, instead got %s " % head)
raise "In Emily_Controller.parsing_begin: after server expected {, instead got %s " % head
else:
logger.debug("unknown word %s " % head)
raise "In Emily_Controller.parsing_begin: unknown word %s " % head