I am working on supporting TLS, and it looks like everything that I need is
built into FlightServerBase.
However, I am struggling to understand how it works, or how to test that it
is working. For example, I don't understand why I can pass garbage in for
the tls_certs, and still get results when called from a client. Here is a
minimal example I put together to show where I am confused.
Server that I think should not work:
```python
from pyarrow import flight, Table
class SampleServer(flight.FlightServerBase):
def __init__(self, *args, **kwargs):
tls_certificates = [("garbage", "garbage")]
location = flight.Location.for_grpc_tcp("localhost", 8081)
super(SampleServer, self).__init__(location,
None,
tls_certificates,
False,
None,
*args, **kwargs)
def do_get(self, context, ticket):
data = {'col': [1]}
table = Table.from_pydict(data)
return flight.RecordBatchStream(table)
if __name__ == "__main__":
server = SampleServer()
server.serve()
```
Client code that I think should not work: ```python
import pyarrow.flight as fl
import json
def main():
server_location = "grpc://localhost:8081"
client = fl.FlightClient(server_location)
ticket = fl.Ticket(json.dumps({}))
reader = client.do_get(ticket)
print(reader.read_all().to_pandas())
if __name__ == "__main__":
main()
```
But when I run the server, and then the client, I get a result: ``` %
python3 client.py
col
0 1 ``` I would expect some kind of TLS error.
I am sure that I am confused about something, but if someone could help me
with my reasoning, I would appreciate it.
