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85 lines
2.5 KiB
Python
Executable file
85 lines
2.5 KiB
Python
Executable file
#!/usr/bin/env python3
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#
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# Test client for simple 1-1 call signalling server
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#
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# Copyright (C) 2017 Centricular Ltd.
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#
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# Author: Nirbheek Chauhan <nirbheek@centricular.com>
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#
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import sys
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import ssl
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import json
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import uuid
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import asyncio
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import websockets
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import argparse
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parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter)
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parser.add_argument('--url', default='wss://localhost:8443', help='URL to connect to')
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parser.add_argument('--call', default=None, help='uid of peer to call')
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options = parser.parse_args(sys.argv[1:])
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SERVER_ADDR = options.url
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CALLEE_ID = options.call
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PEER_ID = 'ws-test-client-' + str(uuid.uuid4())[:6]
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sslctx = False
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if SERVER_ADDR.startswith(('wss://', 'https://')):
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sslctx = ssl.create_default_context()
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# FIXME
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sslctx.check_hostname = False
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sslctx.verify_mode = ssl.CERT_NONE
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def reply_sdp_ice(msg):
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# Here we'd parse the incoming JSON message for ICE and SDP candidates
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print("Got: " + msg)
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reply = json.dumps({'sdp': 'reply sdp'})
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print("Sent: " + reply)
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return reply
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def send_sdp_ice():
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reply = json.dumps({'sdp': 'initial sdp'})
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print("Sent: " + reply)
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return reply
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async def hello():
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async with websockets.connect(SERVER_ADDR, ssl=sslctx) as ws:
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await ws.send('HELLO ' + PEER_ID)
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assert(await ws.recv() == 'HELLO')
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# Initiate call if requested
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if CALLEE_ID:
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await ws.send('CALL {}'.format(CALLEE_ID))
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# Receive messages
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while True:
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msg = await ws.recv()
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if msg.startswith('ERROR'):
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# On error, we bring down the webrtc pipeline, etc
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print('{!r}, exiting'.format(msg))
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return
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if CALLEE_ID:
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if msg == 'CALL_OK':
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await ws.send(send_sdp_ice())
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# Return so we don't have an infinite loop
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return
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else:
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print('Unknown reply: {!r}, exiting'.format(msg))
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return
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else:
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await ws.send(reply_sdp_ice(msg))
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# Return so we don't have an infinite loop
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return
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print('Our uid is {!r}'.format(PEER_ID))
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try:
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asyncio.get_event_loop().run_until_complete(hello())
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except websockets.exceptions.InvalidHandshake:
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print('Invalid handshake: are you sure this is a websockets server?\n')
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raise
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except ssl.SSLError:
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print('SSL Error: are you sure the server is using TLS?\n')
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raise
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