45 lines
1.2 KiB
Python
Executable file
45 lines
1.2 KiB
Python
Executable file
#!/usr/bin/env python3
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import struct
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import socket
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import argparse
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import crap
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import config
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class OPCClient:
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def __init__(self, host, port):
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s = self.sock = socket.socket() # Yea, we're using TCP here to receive frame data…
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s.connect((host, port))
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def close(self):
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self.s.close()
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def sendframe(self, frame):
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self.s.sendall(b'\x00\x00' + struct.pack('>H', len(frame)) + frame)
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def crap_to_opc(dhost, dport, lhost, lport):
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cs = crap.CRAPServer(dhost, dport, blocking=True)
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while True:
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try:
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oc = None
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for _id, frame in cs:
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if not oc:
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oc = OPCClient(dhost, dport)
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oc.sendframe(frame)
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oc.close()
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except OSError:
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pass
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if __file__ != '__main__':
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parser = argparse.ArgumentParser('CRAP server to OPC client')
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parser.add_argument('dhost', nargs='?', default='localhost', help='OPC destination host')
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parser.add_argument('dport', nargs='?', default=7890, help='OPC destination port')
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parser.add_argument('lport', nargs='?', default=1337, help='CRAP listening host')
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parser.add_argument('lhost', nargs='?', default='', help='CRAP listening port')
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args = parser.parse_args()
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crap_to_opc(args.dhost, args.dport, args.lhost, args.lport)
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