forked from rc/aircox
84 lines
2.2 KiB
Python
Executable File
84 lines
2.2 KiB
Python
Executable File
import socket
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import re
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import json
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response_re = re.compile(r'(.*)\s+END\s*$')
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key_val_re = re.compile(r'(?P<key>[^=]+)="?(?P<value>([^"]|\\")+)"?')
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class Connector:
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"""
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Connection to AF_UNIX or AF_INET, get and send data. Received
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data can be parsed from list of `key=value` or JSON.
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"""
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socket = None
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""" The socket """
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address = None
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"""
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String to a Unix domain socket file, or a tuple (host, port) for
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TCP/IP connection
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"""
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@property
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def is_open(self):
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return self.socket is not None
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def __init__(self, address=None):
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if address:
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self.address = address
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def open(self):
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if self.is_open:
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return
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family = socket.AF_UNIX if isinstance(self.address, str) else \
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socket.AF_INET
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try:
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self.socket = socket.socket(family, socket.SOCK_STREAM)
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self.socket.connect(self.address)
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except:
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self.close()
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return -1
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def close(self):
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self.socket.close()
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self.socket = None
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# FIXME: return None on failed
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def send(self, *data, try_count=1, parse=False, parse_json=False):
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if self.open():
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return None
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data = bytes(''.join([str(d) for d in data]) + '\n', encoding='utf-8')
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try:
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self.socket.sendall(data)
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data = ''
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while not response_re.search(data):
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data += self.socket.recv(1024).decode('utf-8')
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if data:
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data = response_re.sub(r'\1', data).strip()
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data = self.parse(data) if parse else \
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self.parse_json(data) if parse_json else data
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return data
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except:
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self.close()
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if try_count > 0:
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return self.send(data, try_count - 1)
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def parse(self, value):
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return {
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line.groupdict()['key']: line.groupdict()['value']
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for line in (key_val_re.search(line) for line in value.split('\n'))
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if line
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}
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def parse_json(self, value):
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try:
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if value[0] == '"' and value[-1] == '"':
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value = value[1:-1]
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return json.loads(value) if value else None
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except:
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return None
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