3proxy/tests/cases/auto.py

75 lines
2.5 KiB
Python

"""auto: one port that works out which protocol the client is speaking.
Two origins, because the protocols reach different places: an HTTP or SOCKS
client names its own destination, while a TLS client names a host in the
handshake and the service supplies the port.
"""
def run(t):
certs = t.certs()
plain = t.free_port()
port = t.free_port()
secure = t.free_port() if certs else None
tls_origin = ""
if certs:
tls_origin = f"""
flush
ssl_server_cert {certs.server}
ssl_server_key {certs.server_key}
ssl_serv
auth iponly
allow *
http echo * /echo**
httpsrv -p{secure}
ssl_noserv"""
ports = [plain, port] + ([secure] if certs else [])
server = t.start("auto", f"""
log
auth iponly
allow *
http echo * /echo**
httpsrv -p{plain}
{tls_origin}
flush
nserver 127.0.0.1
nscache 1024
nsrecord sni.test 127.0.0.1
auth iponly
allow *
auto -p{port}{f' -P{secure}' if certs else ''}
""", ports=ports)
url = f"http://127.0.0.1:{plain}/echo"
at = f"127.0.0.1:{port}"
# --- as an HTTP proxy -------------------------------------------------
r = t.http(url, proxy=at)
t.eq(200, r.status, "the same port serves an HTTP proxy request")
t.contains(r, "path=/echo", "the origin sees it")
t.contains(t.http(url, proxy=at, method="POST", body="x=1"), "method=POST",
"a POST is recognised as HTTP too")
# --- as a SOCKS proxy --------------------------------------------------
r = t.socks_http(at, url)
t.eq(200, r.status, "the same port serves SOCKS5")
t.contains(r, "path=/echo", "the origin sees the SOCKS request")
t.eq(200, t.socks_http(at, url, socks4=True).status,
"and SOCKS4 on the same port")
# --- as a name-directed TLS proxy --------------------------------------
if certs and "Unknown command" not in server.output():
r = t.https(f"https://sni.test:{port}/echo", ca=certs.ca, strict=False,
connect_to=("127.0.0.1", port))
t.eq(200, r.status, "and a TLS handshake, routed by the name it carries")
t.contains(r, "path=/echo", "which reaches the TLS origin")
else:
t.skip("auto over TLS (no SSL support, or no openssl to make certificates)")
# --- what it is not ----------------------------------------------------
t.not_contains(t.raw(port, "GIBBERISH\r\n\r\n"), "200 OK",
"nonsense is not served as anything")