Hello. My time is very limited so I hope you look at the topic immediately.
I am having problems with Janus websocket connection.
I installed my Janus and TURN server in a virtual machine I created on Google Cloud.
I did the TURN configurations correctly.
Everything looks correct on the Janus side; janus.jcfg, janus.transport.websocket.jcfg… I also created firewall rules for the ports, but unfortunately I can’t connect to ws from an external device. I have a simple python project to do this:
main.py:
# main.py
import asyncio
from signaling.janus_signaling import JanusSignaler
async def main():
signaler = JanusSignaler("ws://a.b.c.d:8188/janus")
await signaler.connect()
asyncio.run(main())
janus_signaling.py:
# signaling/janus_signaling.py
import asyncio
import websockets
import json
import uuid
class JanusSignaler:
def __init__(self, ws_url):
self.ws_url = ws_url
self.ws = None
async def connect(self):
print("WebSocket bağlantısı kuruluyor")
self.ws = await websockets.connect(self.ws_url)
print("Buraya geldik mi hocam")
#Bağlandıktan sonra Janus'a create isteği gönder
transaction = str(uuid.uuid4())
create_msg = {
"janus": "create",
"transaction": transaction
}
await self.ws.send(json.dumps(create_msg))
print("Create mesajı gönderildi")
#Cevabı al
response = await self.ws.recv()
print("Gelen cevap: ")
print(json.dumps(json.loads(response), indent=4))
When I run these codes, I get the following error:
Traceback (most recent call last):
File "/home/nida/.local/lib/python3.8/site-packages/websockets/legacy/http.py", line 120, in read_response
status_line = await read_line(stream)
File "/home/nida/.local/lib/python3.8/site-packages/websockets/legacy/http.py", line 200, in read_line
raise EOFError("line without CRLF")
EOFError: line without CRLF
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/home/nida/.local/lib/python3.8/site-packages/websockets/legacy/client.py", line 134, in read_http_response
status_code, reason, headers = await read_response(self.reader)
File "/home/nida/.local/lib/python3.8/site-packages/websockets/legacy/http.py", line 122, in read_response
raise EOFError("connection closed while reading HTTP status line") from exc
EOFError: connection closed while reading HTTP status line
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "main.py", line 10, in <module>
asyncio.run(main())
File "/usr/lib/python3.8/asyncio/runners.py", line 44, in run
return loop.run_until_complete(main)
File "/usr/lib/python3.8/asyncio/base_events.py", line 616, in run_until_complete
return future.result()
File "main.py", line 8, in main
await signaler.connect()
File "/home/nida/raspberry_client/signaling/janus_signaling.py", line 15, in connect
self.ws = await websockets.connect(self.ws_url)
File "/home/nida/.local/lib/python3.8/site-packages/websockets/legacy/client.py", line 656, in __await_impl__
await protocol.handshake(
File "/home/nida/.local/lib/python3.8/site-packages/websockets/legacy/client.py", line 316, in handshake
status_code, response_headers = await self.read_http_response()
File "/home/nida/.local/lib/python3.8/site-packages/websockets/legacy/client.py", line 136, in read_http_response
raise InvalidMessage("did not receive a valid HTTP response") from exc
websockets.legacy.exceptions.InvalidMessage: did not receive a valid HTTP response
When I send a websocat request to Janus from the terminal, I get the following error:
~$ websocat ws://35.242.205.185:8188/janus
websocat: WebSocketError: WebSocket protocol error
websocat: error running
When I run this same command in VM with localhost or 127.0.0.0.1, I get the same error.
The Janus service works fine, and if I run it, the logs come as follows:
Traceback (most recent call last):
File "/home/nida/.local/lib/python3.8/site-packages/websockets/legacy/http.py", line 120, in read_response
status_line = await read_line(stream)
File "/home/nida/.local/lib/python3.8/site-packages/websockets/legacy/http.py", line 200, in read_line
raise EOFError("line without CRLF")
EOFError: line without CRLF
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/home/nida/.local/lib/python3.8/site-packages/websockets/legacy/client.py", line 134, in read_http_response
status_code, reason, headers = await read_response(self.reader)
File "/home/nida/.local/lib/python3.8/site-packages/websockets/legacy/http.py", line 122, in read_response
raise EOFError("connection closed while reading HTTP status line") from exc
EOFError: connection closed while reading HTTP status line
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "main.py", line 10, in <module>
asyncio.run(main())
File "/usr/lib/python3.8/asyncio/runners.py", line 44, in run
return loop.run_until_complete(main)
File "/usr/lib/python3.8/asyncio/base_events.py", line 616, in run_until_complete
return future.result()
File "main.py", line 8, in main
await signaler.connect()
File "/home/nida/raspberry_client/signaling/janus_signaling.py", line 15, in connect
self.ws = await websockets.connect(self.ws_url)
File "/home/nida/.local/lib/python3.8/site-packages/websockets/legacy/client.py", line 656, in __await_impl__
await protocol.handshake(
File "/home/nida/.local/lib/python3.8/site-packages/websockets/legacy/client.py", line 316, in handshake
status_code, response_headers = await self.read_http_response()
File "/home/nida/.local/lib/python3.8/site-packages/websockets/legacy/client.py", line 136, in read_http_response
raise InvalidMessage("did not receive a valid HTTP response") from exc
websockets.legacy.exceptions.InvalidMessage: did not receive a valid HTTP response
I would be really happy if you could help me solve this problem. Have a good day.
