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# Test asyncio TCP server and client with TLS, using readline() to read data.
try:
import os
import asyncio
import ssl
except ImportError:
print("SKIP")
raise SystemExit
PORT = 8000
# These are test certificates. See tests/README.md for details.
cert = cafile = "ec_cert.der"
key = "ec_key.der"
try:
os.stat(cafile)
os.stat(key)
except OSError:
print("SKIP")
raise SystemExit
async def handle_connection(reader, writer):
data = await reader.readline()
print("echo:", data)
data2 = await reader.readline()
print("echo:", data2)
writer.write(data + data2)
await writer.drain()
print("close")
writer.close()
await writer.wait_closed()
print("done")
ev.set()
async def tcp_server():
global ev
server_ctx = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)
server_ctx.load_cert_chain(cert, key)
ev = asyncio.Event()
server = await asyncio.start_server(handle_connection, "0.0.0.0", PORT, ssl=server_ctx)
print("server running")
multitest.next()
async with server:
await asyncio.wait_for(ev.wait(), 10)
async def tcp_client(message):
client_ctx = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
client_ctx.verify_mode = ssl.CERT_REQUIRED
client_ctx.load_verify_locations(cafile=cafile)
reader, writer = await asyncio.open_connection(
IP, PORT, ssl=client_ctx, server_hostname="micropython.local"
)
print("write:", message)
writer.write(message)
await writer.drain()
data = await reader.readline()
print("read:", data)
data2 = await reader.readline()
print("read:", data2)
def instance0():
multitest.globals(IP=multitest.get_network_ip())
asyncio.run(tcp_server())
def instance1():
multitest.next()
asyncio.run(tcp_client(b"client data\nclient data2\n"))
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