class Connection:
err_d = (errno.EINPROGRESS, errno.EALREADY, errno.EWOULDBLOCK)
err_conn = (errno.EISCONN, 10057, 10035) # client 10053
def __init__(self, workers):
self.client_fd = None
self.recv_buf = ''
self.send_buf = ''
self.conn_id = None
self.msg = Message()
self.logger = Log()
self.workers = workers
def close_fd(self):
try:
self.logger.debug(
"client exit. fd = " + str(self.client_fd) + "port = " + str(self.client_fd.getpeername()[1]))
self.client_fd.shutdown(socket.SHUT_RDWR)
self.client_fd.close()
except IOError as err:
self.logger.error("conn socket close fail err:" + str(err.errno))
def assign(self, fd, conn_id):
self.client_fd = fd
self.client_fd.setblocking(False)
self.client_fd.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
self.conn_id = conn_id
self.logger.debug("new client. fd = " + str(self.client_fd) + "port = " + str(self.client_fd.getpeername()[1]))
def _package_message(self):
while len(self.recv_buf) != 0:
size = self.msg.recv(self.recv_buf)
self.recv_buf = self.recv_buf[size:]
if self.msg.finish():
# self.logger.debug("recv msg:" + self.msg.__str__())
# print "recv msg:" + self.msg.__str__()
self.workers.message_handler(self.conn_id, self.msg)
self.msg.assign()
def recv_event(self):
text = ''
# 客户端退出 not text为 True，这里text上空字符串。
# 如果是客户端暂时没有数据，并不会导致text为空传，导致10035异常，非阻塞模式中
try:
text = self.client_fd.recv(1024)
if not text:
err_code = 10000
self.close_fd()
return True
except socket.error, (code, strerror):
if code not in Connection.err_d:
err_code = code
self.close_fd()
return True
self.recv_buf += text
self._package_message()
return False
class Request:
def __init__(self, conn_id=0, msg=None):
if msg is None:
self.msg = Message()
else:
self.msg = copy.copy(msg)
self.conn_id = conn_id
self.content = None
self.logger = Log()
self.parse_success = False
self.parse_err = None
def get_handler(self):
return self.msg.get_handler()
def get_msg_content(self):
return self.msg.get_msg_content()
def pack_buffer(self, handler, content=None):
if content and isinstance(content, dict):
self.content = content
if not isinstance(self.content, dict):
raise ValueError("request / response content must be dict. " +
str(type(self.content)))
self.content = unicode_convert(self.content)
self.msg.pack_buffer(handler, json.dumps(self.content))
def deserialization(self):
try:
self.content = json.loads(self.msg.get_msg_content())
except ValueError as err:
self.logger.debug("json parse err. " + str(err))
return
self.content = unicode_convert(self.content)
self.parse_success = True
def contain_key(self, key):
if key not in self.content.keys():
self.parse_success = False
self.parse_err = "key not exist. " + key
return False
return True
def check_contain_string(self, key):
if not self.contain_key(key):
return False
if not isinstance(self.content[key], str):
self.parse_success = False
self.parse_err = "key: " + key + " is not str"
return False
return True
def check_contain_float(self, key):
if not self.contain_key(key):
return False
val = self.content[key]
try:
val = float(val)
except Exception as e:
self.parse_success = False
self.parse_err = "val: " + str(val) + "is not float. " + str(e)
return False
else:
return True
def check_contain_int(self, key, min_val=None, max_val=None):
if not self.contain_key(key):
return False
val = self.content[key]
if not isinstance(val, int):
try:
val = int(val)
except Exception as e:
self.parse_success = False
self.parse_err = "val: " + str(val) + "is not int. " + str(e)
return False
else:
return True
if (min_val is not None and val < min_val) or (max_val is not None
and val > max_val):
self.parse_success = False
self.parse_err = "key: " + key + " value range error"
return False
return True