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{ system ? builtins.currentSystem, config ? { }
, pkgs ? import ../.. { inherit system config; } }:
with import ../lib/testing-python.nix { inherit system pkgs; };
with pkgs.lib;
let
stunnelCommon = {
services.stunnel = {
enable = true;
user = "stunnel";
};
users.groups.stunnel = { };
users.users.stunnel = {
isSystemUser = true;
group = "stunnel";
};
};
makeCert = { config, pkgs, ... }: {
systemd.services.create-test-cert = {
wantedBy = [ "sysinit.target" ];
before = [ "sysinit.target" ];
unitConfig.DefaultDependencies = false;
script = ''
${pkgs.openssl}/bin/openssl req -batch -x509 -newkey rsa -nodes -out /test-cert.pem -keyout /test-key.pem -subj /CN=${config.networking.hostName}
( umask 077; cat /test-key.pem /test-cert.pem > /test-key-and-cert.pem )
chown stunnel /test-key.pem /test-key-and-cert.pem
'';
};
};
serverCommon = { pkgs, ... }: {
networking.firewall.allowedTCPPorts = [ 443 ];
services.stunnel.servers.https = {
accept = "443";
connect = 80;
cert = "/test-key-and-cert.pem";
};
systemd.services.simple-webserver = {
wantedBy = [ "multi-user.target" ];
script = ''
cd /etc/webroot
${pkgs.python3}/bin/python -m http.server 80
'';
};
};
copyCert = src: dest: filename: ''
from shlex import quote
${src}.wait_for_file("/test-key-and-cert.pem")
server_cert = ${src}.succeed("cat /test-cert.pem")
${dest}.succeed("echo %s > ${filename}" % quote(server_cert))
'';
in {
basicServer = makeTest {
name = "basicServer";
nodes = {
client = { };
server = {
imports = [ makeCert serverCommon stunnelCommon ];
environment.etc."webroot/index.html".text = "well met";
};
};
testScript = ''
start_all()
${copyCert "server" "client" "/authorized-server-cert.crt"}
server.wait_for_unit("simple-webserver")
server.wait_for_unit("stunnel")
client.succeed("curl --fail --cacert /authorized-server-cert.crt https://server/ > out")
client.succeed('[[ "$(< out)" == "well met" ]]')
'';
};
serverAndClient = makeTest {
name = "serverAndClient";
nodes = {
client = {
imports = [ stunnelCommon ];
services.stunnel.clients = {
httpsClient = {
accept = "80";
connect = "server:443";
CAFile = "/authorized-server-cert.crt";
};
httpsClientWithHostVerify = {
accept = "81";
connect = "server:443";
CAFile = "/authorized-server-cert.crt";
verifyHostname = "server";
};
httpsClientWithHostVerifyFail = {
accept = "82";
connect = "server:443";
CAFile = "/authorized-server-cert.crt";
verifyHostname = "wronghostname";
};
};
};
server = {
imports = [ makeCert serverCommon stunnelCommon ];
environment.etc."webroot/index.html".text = "hello there";
};
};
testScript = ''
start_all()
${copyCert "server" "client" "/authorized-server-cert.crt"}
server.wait_for_unit("simple-webserver")
server.wait_for_unit("stunnel")
# In case stunnel came up before we got the server's cert copied over
client.succeed("systemctl reload-or-restart stunnel")
client.succeed("curl --fail http://localhost/ > out")
client.succeed('[[ "$(< out)" == "hello there" ]]')
client.succeed("curl --fail http://localhost:81/ > out")
client.succeed('[[ "$(< out)" == "hello there" ]]')
client.fail("curl --fail http://localhost:82/ > out")
client.succeed('[[ "$(< out)" == "" ]]')
'';
};
mutualAuth = makeTest {
name = "mutualAuth";
nodes = rec {
client = {
imports = [ makeCert stunnelCommon ];
services.stunnel.clients.authenticated-https = {
accept = "80";
connect = "server:443";
verifyPeer = true;
CAFile = "/authorized-server-cert.crt";
cert = "/test-cert.pem";
key = "/test-key.pem";
};
};
wrongclient = client;
server = {
imports = [ makeCert serverCommon stunnelCommon ];
services.stunnel.servers.https = {
CAFile = "/authorized-client-certs.crt";
verifyPeer = true;
};
environment.etc."webroot/index.html".text = "secret handshake";
};
};
testScript = ''
start_all()
${copyCert "server" "client" "/authorized-server-cert.crt"}
${copyCert "client" "server" "/authorized-client-certs.crt"}
${copyCert "server" "wrongclient" "/authorized-server-cert.crt"}
# In case stunnel came up before we got the cross-certs in place
client.succeed("systemctl reload-or-restart stunnel")
server.succeed("systemctl reload-or-restart stunnel")
wrongclient.succeed("systemctl reload-or-restart stunnel")
server.wait_for_unit("simple-webserver")
client.fail("curl --fail --insecure https://server/ > out")
client.succeed('[[ "$(< out)" == "" ]]')
client.succeed("curl --fail http://localhost/ > out")
client.succeed('[[ "$(< out)" == "secret handshake" ]]')
wrongclient.fail("curl --fail http://localhost/ > out")
wrongclient.succeed('[[ "$(< out)" == "" ]]')
'';
};
}
|