micropython/tests/multi_net/sslcontext_server_client_ci...

59 lines
1.5 KiB
Python

# Test creating an SSL connection with specified ciphers.
try:
import os
import socket
import ssl
except ImportError:
print("SKIP")
raise SystemExit
PORT = 8000
# These are test certificates. See tests/README.md for details.
cert = cafile = "rsa_cert.der"
key = "rsa_key.der"
try:
os.stat(cafile)
os.stat(key)
except OSError:
print("SKIP")
raise SystemExit
# Server
def instance0():
multitest.globals(IP=multitest.get_network_ip())
s = socket.socket()
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind(socket.getaddrinfo("0.0.0.0", PORT)[0][-1])
s.listen(1)
multitest.next()
s2, _ = s.accept()
server_ctx = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)
server_ctx.load_cert_chain(cert, key)
s2 = server_ctx.wrap_socket(s2, server_side=True)
assert isinstance(s2.cipher(), tuple)
print(s2.read(16))
s2.write(b"server to client")
s2.close()
s.close()
# Client
def instance1():
multitest.next()
s = socket.socket()
s.connect(socket.getaddrinfo(IP, PORT)[0][-1])
client_ctx = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
ciphers = client_ctx.get_ciphers()
assert "TLS-RSA-WITH-AES-256-CBC-SHA256" in ciphers
client_ctx.set_ciphers(["TLS-RSA-WITH-AES-256-CBC-SHA256"])
client_ctx.verify_mode = ssl.CERT_REQUIRED
client_ctx.load_verify_locations(cafile=cafile)
s = client_ctx.wrap_socket(s, server_hostname="micropython.local")
s.write(b"client to server")
print(s.read(16))
s.close()