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tests: Update SSL network tests to use SSLContext, and work on CPython.

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Changes are:
- use ssl.SSLContext.wrap_socket instead of ssl.wrap_socket
- disable check_hostname and call load_default_certs() where appropriate,
  to get CPython to run the tests correctly
- pass socket.AF_INET to getaddrinfo and socket.socket(), to force IPv4
- change tests to use github.com instead of google.com, because certificate
  validation was failing with google.com

Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George 2023-12-12 17:17:22 +11:00
parent ef996d15b9
commit bba8a673d5
6 changed files with 61 additions and 44 deletions
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9
tests/net_hosted/connect_nonblock_xfer.py
View File

@ -27,11 +27,12 @@ def do_connect(peer_addr, tls, handshake):
print(" got", er.errno)
# wrap with ssl/tls if desired
if tls:
ssl_context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
if hasattr(ssl_context, "check_hostname"):
ssl_context.check_hostname = False
try:
if sys.implementation.name == "micropython":
s = ssl.wrap_socket(s, do_handshake=handshake)
else:
s = ssl.wrap_socket(s, do_handshake_on_connect=handshake)
s = ssl_context.wrap_socket(s, do_handshake_on_connect=handshake)
print("wrap: True")
except Exception as e:
dp(e)

28
tests/net_inet/ssl_errors.py
View File

@ -1,12 +1,12 @@
# test that socket.connect() on a non-blocking socket raises EINPROGRESS
# and that an immediate write/send/read/recv does the right thing
import sys, errno, socket, ssl
import sys, errno, select, socket, ssl
def test(addr, hostname, block=True):
print("---", hostname or addr)
s = socket.socket()
print("---", hostname)
s = socket.socket(socket.AF_INET)
s.setblocking(block)
try:
s.connect(addr)
@ -16,11 +16,15 @@ def test(addr, hostname, block=True):
raise
print("EINPROGRESS")
if sys.implementation.name != "micropython":
# in CPython we have to wait, otherwise wrap_socket is not happy
select.select([], [s], [])
ssl_context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
ssl_context.verify_mode = ssl.CERT_REQUIRED
try:
if sys.implementation.name == "micropython":
s = ssl.wrap_socket(s, do_handshake=block)
else:
s = ssl.wrap_socket(s, do_handshake_on_connect=block)
s = ssl_context.wrap_socket(s, do_handshake_on_connect=block, server_hostname=hostname)
print("wrap: True")
except OSError:
print("wrap: error")
@ -36,11 +40,11 @@ def test(addr, hostname, block=True):
if __name__ == "__main__":
# connect to plain HTTP port, oops!
addr = socket.getaddrinfo("micropython.org", 80)[0][-1]
test(addr, None)
addr = socket.getaddrinfo("micropython.org", 80, socket.AF_INET)[0][-1]
test(addr, "micropython.org")
# connect to plain HTTP port, oops!
addr = socket.getaddrinfo("micropython.org", 80)[0][-1]
test(addr, None, False)
addr = socket.getaddrinfo("micropython.org", 80, socket.AF_INET)[0][-1]
test(addr, "micropython.org", False)
# connect to server with self-signed cert, oops!
addr = socket.getaddrinfo("test.mosquitto.org", 8883)[0][-1]
addr = socket.getaddrinfo("test.mosquitto.org", 8883, socket.AF_INET)[0][-1]
test(addr, "test.mosquitto.org")

26
tests/net_inet/test_tls_nonblock.py
View File

@ -2,12 +2,12 @@ import socket, ssl, errno, sys, time, select
def test_one(site, opts):
ai = socket.getaddrinfo(site, 443)
ai = socket.getaddrinfo(site, 443, socket.AF_INET)
addr = ai[0][-1]
print(addr)
print(site)
# Connect the raw socket
s = socket.socket()
s = socket.socket(socket.AF_INET)
s.setblocking(False)
try:
s.connect(addr)
@ -16,17 +16,22 @@ def test_one(site, opts):
if e.errno != errno.EINPROGRESS:
raise
# Create SSLContext.
ssl_context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
# CPython compatibility:
# - disable check_hostname
# - load default system certificate chain
# - must wait for socket to be writable before calling wrap_socket
if sys.implementation.name != "micropython":
# in CPython we have to wait, otherwise wrap_socket is not happy
ssl_context.check_hostname = False
ssl_context.load_default_certs()
select.select([], [s], [])
try:
# Wrap with SSL
try:
if sys.implementation.name == "micropython":
s = ssl.wrap_socket(s, do_handshake=False)
else:
s = ssl.wrap_socket(s, do_handshake_on_connect=False)
s = ssl_context.wrap_socket(s, do_handshake_on_connect=False)
except OSError as e:
if e.errno != errno.EINPROGRESS:
raise
@ -87,8 +92,7 @@ def test_one(site, opts):
SITES = [
"google.com",
{"host": "www.google.com"},
"www.github.com",
"micropython.org",
"pypi.org",
{"host": "api.pushbullet.com", "sni": True},
@ -105,7 +109,7 @@ def main():
test_one(site, opts)
print(site, "ok")
except Exception as e:
print(site, "error")
print(site, "error", e)
print("DONE")

29
tests/net_inet/test_tls_sites.py
View File

@ -1,24 +1,34 @@
import sys
import select
import socket
import ssl
# CPython only supports server_hostname with SSLContext
if hasattr(ssl, "SSLContext"):
ssl = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
def test_one(site, opts):
ai = socket.getaddrinfo(site, 443)
ai = socket.getaddrinfo(site, 443, socket.AF_INET)
addr = ai[0][-1]
s = socket.socket()
s = socket.socket(socket.AF_INET)
# Create SSLContext.
ssl_context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
# CPython compatibility:
# - disable check_hostname
# - load default system certificate chain
# - must wait for socket to be writable before calling wrap_socket
if sys.implementation.name != "micropython":
ssl_context.check_hostname = False
ssl_context.load_default_certs()
select.select([], [s], [])
try:
s.connect(addr)
if "sni" in opts:
s = ssl.wrap_socket(s, server_hostname=opts["host"])
s = ssl_context.wrap_socket(s, server_hostname=opts["host"])
else:
s = ssl.wrap_socket(s)
s = ssl_context.wrap_socket(s)
s.write(b"GET / HTTP/1.0\r\nHost: %s\r\n\r\n" % bytes(site, "latin"))
resp = s.read(4096)
@ -31,8 +41,7 @@ def test_one(site, opts):
SITES = [
"google.com",
"www.google.com",
"www.github.com",
"micropython.org",
"pypi.org",
{"host": "api.pushbullet.com", "sni": True},

5
tests/net_inet/test_tls_sites.py.exp
View File

@ -1,5 +0,0 @@
google.com ok
www.google.com ok
micropython.org ok
pypi.org ok
api.pushbullet.com ok

8
tests/net_inet/tls_text_errors.py
View File

@ -1,13 +1,17 @@
# test that modtls produces a text error message
import socket, ssl, sys
import socket, ssl
def test(addr):
s = socket.socket()
s.connect(addr)
try:
s = ssl.wrap_socket(s)
ssl_context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
if hasattr(ssl_context, "check_hostname"):
# Disable hostname check on CPython.
ssl_context.check_hostname = False
s = ssl_context.wrap_socket(s)
print("wrap: no exception")
except OSError as e:
# mbedtls produces "mbedtls -0x7200: SSL - An invalid SSL record was received"