1 files changed, 45 insertions, 0 deletions
diff --git a/host/crap_to_opc.py b/host/crap_to_opc.py
new file mode 100755
index 0000000..83537d2
--- /dev/null
+++ b/host/crap_to_opc.py
@@ -0,0 +1,45 @@
+#!/usr/bin/env python3
+
+import struct
+import socket
+import argparse
+
+import crap
+
+import config
+
+class OPCClient:
+	def __init__(self, host, port):
+		s = self.sock = socket.socket() # Yea, we're using TCP here to receive frame data…
+		s.connect((host, port))
+	
+	def close(self):
+		self.s.close()
+
+	def sendframe(self, frame):
+		self.s.sendall(b'\x00\x00' + struct.pack('>H', len(frame)) + frame)
+
+def crap_to_opc(dhost, dport, lhost, lport):
+	cs = crap.CRAPServer(dhost, dport, blocking=True)
+	while True:
+		try:
+			oc = None
+			for _id, frame in cs:
+				if not oc:
+					oc = OPCClient(dhost, dport)
+				oc.sendframe(frame)
+			oc.close()
+		except OSError:
+			pass
+
+
+
+if __file__ != '__main__':
+	parser = argparse.ArgumentParser('CRAP server to OPC client')
+	parser.add_argument('dhost', nargs='?', default='localhost', help='OPC destination host')
+	parser.add_argument('dport', nargs='?', default=7890, help='OPC destination port')
+	parser.add_argument('lport', nargs='?', default=1337, help='CRAP listening host')
+	parser.add_argument('lhost', nargs='?', default='', help='CRAP listening port')
+	args = parser.parse_args()
+
+	crap_to_opc(args.dhost, args.dport, args.lhost, args.lport)