/usr/lib/python2.7/dist-packages/ccnet/sync_client.py is in libccnet0 6.0.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 | from ccnet.client import Client, parse_response
from ccnet.packet import read_packet, CCNET_MSG_RESPONSE
from ccnet.status_code import SC_PROC_DONE, SS_PROC_DONE
from ccnet.message import message_from_string, gen_inner_message_string
_REQ_ID_START = 1000
class Response(object):
def __init__(self, code, code_msg, content):
self.code = code
self.code_msg = code_msg
self.content = content
class SyncClient(Client):
'''sync mode client'''
def __init__(self, config_dir, central_config_dir=None):
Client.__init__(self, config_dir, central_config_dir)
self._req_id = _REQ_ID_START
self.mq_req_id = -1
def disconnect_daemon(self):
if self.is_connected():
try:
self._connfd.close()
except:
pass
def read_response(self):
packet = read_packet(self._connfd)
if packet.header.ptype != CCNET_MSG_RESPONSE:
raise RuntimeError('Invalid Response')
code, code_msg, content = parse_response(packet.body)
return Response(code, code_msg, content)
def send_cmd(self, cmd):
req_id = self.get_request_id()
self.send_request(req_id, 'receive-cmd')
resp = self.read_response()
if resp.code != '200':
raise RuntimeError('Failed to send-cmd: %s %s' % (resp.code, resp.code_msg))
cmd += '\000'
self.send_update(req_id, '200', '', cmd)
resp = self.read_response()
if resp.code != '200':
raise RuntimeError('Failed to send-cmd: %s %s' % (resp.code, resp.code_msg))
self.send_update(req_id, SC_PROC_DONE, SS_PROC_DONE, '')
def prepare_recv_message(self, msg_type):
request = 'mq-server %s' % msg_type
req_id = self.get_request_id()
self.send_request(req_id, request)
resp = self.read_response()
if resp.code != '200':
raise RuntimeError('bad response: %s %s' % (resp.code, resp.code_msg))
def receive_message(self):
resp = self.read_response()
# the message from ccnet daemon has the trailing null byte included
msg = message_from_string(resp.content[:-1])
return msg
def prepare_send_message(self):
request = 'mq-server'
mq_req_id = self.get_request_id()
self.send_request(mq_req_id, request)
resp = self.read_response()
if resp.code != '200':
raise RuntimeError('bad response: %s %s' % (resp.code, resp.code_msg))
self.mq_req_id = mq_req_id
def send_message(self, msg_type, content):
if self.mq_req_id == -1:
self.prepare_send_message()
msg = gen_inner_message_string(self.peer_id, msg_type, content)
self.send_update(self.mq_req_id, "300", '', msg)
resp = self.read_response()
if resp.code != '200':
self.mq_req_id = -1
raise RuntimeError('bad response: %s %s' % (resp.code, resp.code_msg))
def register_service_sync(self, service, group):
'''Mainly used by a program to register a dummy service to ensure only
single instance of that program is running
'''
cmd = 'register-service %s %s' % (service, group)
self.send_cmd(cmd)
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