tests: Attempt to set up nchan as part of unittests

.travis.yml

@@ -8,6 +8,9 @@ after_success:
 virtualenv:
   system_site_packages: true
 install:
+  - sudo add-apt-repository ppa:nginx/stable  -y
+  - sudo apt update
+  - sudo apt install libnginx-mod-nchan
   - echo "127.0.0.1 localhost" | sudo tee /etc/hosts
   - echo "127.0.1.1 ca.example.lan ca" | sudo tee -a /etc/hosts
   - echo "127.0.0.1 vpn.example.lan vpn" | sudo tee -a /etc/hosts
@@ -32,4 +35,5 @@ addons:
   hostname: ca
   apt:
     packages:
+    - software-properties-common
     - python-configparser

certidude/api/__init__.py

@@ -137,7 +137,7 @@ class StaticResource(object):
     def __call__(self, req, resp):
         path = os.path.realpath(os.path.join(self.root, req.path[1:]))
         if not path.startswith(self.root):
-            raise falcon.HTTPForbidden
+            raise falcon.HTTPBadRequest()
 
         if os.path.isdir(path):
             path = os.path.join(path, "index.html")

certidude/api/request.py

@@ -172,7 +172,7 @@ class RequestDetailResource(object):
 
         try:
             _, buf, _ = authority.get_request(cn)
-        except EnvironmentError:
+        except errors.RequestDoesNotExist:
             logger.warning(u"Failed to serve non-existant request %s to %s",
                 cn, req.context.get("remote_addr"))
             raise falcon.HTTPNotFound()
@@ -227,8 +227,8 @@ class RequestDetailResource(object):
         try:
             authority.delete_request(cn)
             # Logging implemented in the function above
-        except EnvironmentError as e:
-            resp.body = "No certificate CN=%s found" % cn
+        except errors.RequestDoesNotExist as e:
+            resp.body = "No certificate signing request for %s found" % cn
             logger.warning(u"User %s failed to delete signing request %s from %s, reason: %s",
                 req.context["user"], cn, req.context.get("remote_addr"), e)
             raise falcon.HTTPNotFound()

certidude/authority.py

@@ -33,9 +33,12 @@ def get_request(common_name):
     if not re.match(RE_HOSTNAME, common_name):
         raise ValueError("Invalid common name %s" % repr(common_name))
     path = os.path.join(config.REQUESTS_DIR, common_name + ".pem")
-    with open(path) as fh:
-        buf = fh.read()
-        return path, buf, x509.load_pem_x509_csr(buf, default_backend())
+    try:
+        with open(path) as fh:
+            buf = fh.read()
+            return path, buf, x509.load_pem_x509_csr(buf, default_backend())
+    except EnvironmentError:
+        raise errors.RequestDoesNotExist("Certificate signing request file %s does not exist" % path)
 
 def get_signed(common_name):
     if not re.match(RE_HOSTNAME, common_name):
@@ -210,8 +213,7 @@ def delete_request(common_name):
     if not re.match(RE_HOSTNAME, common_name):
         raise ValueError("Invalid common name")
 
-    path = os.path.join(config.REQUESTS_DIR, common_name + ".pem")
-    _, buf, csr = get_request(common_name)
+    path, buf, csr = get_request(common_name)
     os.unlink(path)
 
     # Publish event at CA channel

certidude/cli.py

@@ -92,9 +92,10 @@ def setup_client(prefix="client_", dh=False):
 @click.option("-nw", "--no-wait", default=False, is_flag=True, help="Return immideately if server doesn't autosign")
 def certidude_request(fork, renew, no_wait):
     # Here let's try to avoid compiling packages from scratch
-    rpm("openssl") # TODO
-    apt("openssl python-cryptography python-jinja2") # Native packages on Ubuntu 16.04
-    pip("cryptography jinja2") # Mac OS X, should be skipped on Ubuntu
+    rpm("openssl") or \
+    apt("openssl python-cryptography python-jinja2") or \
+    pip("cryptography jinja2")
+
     import requests
     from jinja2 import Environment, PackageLoader
     env = Environment(loader=PackageLoader("certidude", "templates"), trim_blocks=True)
@@ -270,16 +271,6 @@ def certidude_request(fork, renew, no_wait):
                         "%s/ipsec.conf" % const.STRONGSWAN_PREFIX)
                     break
 
-                # Regenerate /etc/ipsec.secrets
-                with open("%s/ipsec.secrets.part" % const.STRONGSWAN_PREFIX, "w") as fh:
-                    for filename in os.listdir("%s/ipsec.d/private" % const.STRONGSWAN_PREFIX):
-                        if not filename.endswith(".pem"):
-                            continue
-                        fh.write(": RSA %s/ipsec.d/private/%s\n" % (const.STRONGSWAN_PREFIX, filename))
-                os.rename(
-                    "%s/ipsec.secrets.part" % const.STRONGSWAN_PREFIX,
-                    "%s/ipsec.secrets" % const.STRONGSWAN_PREFIX)
-
                 # Attempt to reload config or start if it's not running
                 if os.path.exists("/usr/sbin/strongswan"): # wtf fedora
                     if os.system("strongswan update"):
@@ -319,7 +310,8 @@ def certidude_request(fork, renew, no_wait):
                 nm_config.set("vpn", "remote-cert-tls", "server") # Assert TLS Server flag of X.509 certificate
                 nm_config.set("vpn", "remote", service_config.get(endpoint, "remote"))
                 nm_config.set("vpn", "port", str(endpoint_port))
-                nm_config.set("vpn", "proto", endpoint_proto)
+                if endpoint_proto == "tcp":
+                    nm_config.set("vpn", "proto-tcp", "yes")
                 nm_config.set("vpn", "key", endpoint_key_path)
                 nm_config.set("vpn", "cert", endpoint_certificate_path)
                 nm_config.set("vpn", "ca", endpoint_authority_path)
@@ -498,7 +490,7 @@ def certidude_setup_nginx(authority, common_name, site_config, tls_config, verif
 @click.option("--common-name", "-cn", default=const.HOSTNAME, help="Common name, %s by default" % const.HOSTNAME)
 @click.option('--proto', "-t", default="udp", type=click.Choice(['udp', 'tcp']), help="OpenVPN transport protocol, UDP by default")
 @click.option("--config", "-o",
-    default="/etc/openvpn/client-to-site.conf",
+    default="/etc/openvpn/client-to-site.conf", # TODO: created initially disabled conf
     type=click.File(mode="w", atomic=True, lazy=True),
     help="OpenVPN configuration file")
 @setup_client()
@@ -580,19 +572,24 @@ def certidude_setup_strongswan_server(authority, common_name, subnet, route, **p
 
     # Create corresponding section to /etc/ipsec.conf
     from ipsecparse import loads
-    config = loads(open("%s/ipsec.conf" % const.STRONGSWAN_PREFIX).read())
-    config["conn", authority] = dict(
+    ipsec_conf = loads(open("%s/ipsec.conf" % const.STRONGSWAN_PREFIX).read())
+    ipsec_conf["ca", authority] = dict(
+        auto="add",
+        cacert=paths.get("authority_path"))
+    ipsec_conf["conn", authority] = dict(
         leftcert=paths.get("certificate_path"),
         leftsubnet=",".join(route),
         right="%any",
         rightsourceip=str(subnet),
         closeaction="restart",
         auto="ignore")
-    with open("%s/ipsec.conf.part" % const.STRONGSWAN_PREFIX, "w") as fh:
-        fh.write(config.dumps())
-    os.rename(
-        "%s/ipsec.conf.part" % const.STRONGSWAN_PREFIX,
-        "%s/ipsec.conf" % const.STRONGSWAN_PREFIX)
+    with open("%s/ipsec.conf" % const.STRONGSWAN_PREFIX, "w") as fh:
+        fh.write(ipsec_conf.dumps())
+    with open("%s/ipsec.secrets" % const.STRONGSWAN_PREFIX, "a") as fh:
+        fh.write(": RSA %s\n" % paths.get("key_path"))
+    if os.path.exists("/etc/apparmor.d/local"):
+        with open("/etc/apparmor.d/local/usr.lib.ipsec.charon", "w") as fh:
+            fh.write(os.path.join(const.STORAGE_PATH, "**") + " r,\n") # TODO: dedup!
 
     click.echo()
     click.echo("If you're running Ubuntu make sure you're not affected by #1505222")
@@ -606,8 +603,7 @@ def certidude_setup_strongswan_server(authority, common_name, subnet, route, **p
 @setup_client()
 def certidude_setup_strongswan_client(authority, remote, common_name, **paths):
     # Install dependencies
-    apt("strongswan")
-    rpm("strongswan")
+    apt("strongswan") or rpm("strongswan")
     pip("ipsecparse")
 
     # Create corresponding section in /etc/certidude/services.conf
@@ -629,24 +625,29 @@ def certidude_setup_strongswan_client(authority, remote, common_name, **paths):
 
     # Create corresponding section in /etc/ipsec.conf
     from ipsecparse import loads
-    config = loads(open('%s/ipsec.conf' % const.STRONGSWAN_PREFIX).read())
-    config["conn", remote] = dict(
+    ipsec_conf = loads(open('%s/ipsec.conf' % const.STRONGSWAN_PREFIX).read())
+    ipsec_conf["ca", authority] = dict(
+        auto="add",
+        cacert=paths.get("authority_path"))
+    ipsec_conf["conn", remote] = dict(
         leftsourceip="%config",
         left="%defaultroute",
         leftcert=paths.get("certificate_path"),
         rightid="%any",
         right=remote,
-        #rightsubnet=route,
+        rightsubnet="0.0.0.0/0", # To allow anything suggested by gateway
         keyexchange="ikev2",
         keyingtries="300",
         dpdaction="restart",
         closeaction="restart",
         auto="ignore")
-    with open("%s/ipsec.conf.part" % const.STRONGSWAN_PREFIX, "w") as fh:
-        fh.write(config.dumps())
-    os.rename(
-        "%s/ipsec.conf.part" % const.STRONGSWAN_PREFIX,
-        "%s/ipsec.conf" % const.STRONGSWAN_PREFIX)
+    with open("%s/ipsec.conf" % const.STRONGSWAN_PREFIX, "w") as fh:
+        fh.write(ipsec_conf.dumps())
+    with open("%s/ipsec.secrets" % const.STRONGSWAN_PREFIX, "a") as fh:
+        fh.write(": RSA %s\n" % paths.get("key_path"))
+    if os.path.exists("/etc/apparmor.d/local"):
+        with open("/etc/apparmor.d/local/usr.lib.ipsec.charon", "w") as fh:
+            fh.write(os.path.join(const.STORAGE_PATH, "**") + " r,\n")
 
     click.echo("Generated section %s in %s" % (authority, const.CLIENT_CONFIG_PATH))
     click.echo("Run 'certidude request' to request certificates and to enable services")
@@ -800,21 +801,23 @@ def certidude_setup_authority(username, kerberos_keytab, nginx_config, country,
     certidude_path = sys.argv[0]
 
     # Push server config generation
-    if not os.path.exists("/etc/nginx") or os.getenv("TRAVIS"):
-        click.echo("Directory /etc/nginx does not exist, hence not creating nginx configuration")
-        listen = "0.0.0.0"
-        port = "80"
-    else:
+    if os.path.exists("/etc/nginx"):
+        listen = "127.0.1.1"
         port = "8080"
         click.echo("Generating: %s" % nginx_config.name)
         nginx_config.write(env.get_template("server/nginx.conf").render(vars()))
+        nginx_config.close()
         if not os.path.exists("/etc/nginx/sites-enabled/certidude.conf"):
             os.symlink("../sites-available/certidude.conf", "/etc/nginx/sites-enabled/certidude.conf")
             click.echo("Symlinked %s -> /etc/nginx/sites-enabled/" % nginx_config.name)
         if os.path.exists("/etc/nginx/sites-enabled/default"):
             os.unlink("/etc/nginx/sites-enabled/default")
-        if not push_server:
-            click.echo("Remember to install nchan capable nginx instead of regular nginx!")
+        os.system("service nginx restart")
+    else:
+        click.echo("Directory /etc/nginx does not exist, hence not creating nginx configuration")
+        click.echo("Remember to install/configure nchan capable nginx instead of regular nginx!")
+        listen = "0.0.0.0"
+        port = "80"
 
     if os.path.exists("/etc/systemd"):
         if os.path.exists("/etc/systemd/system/certidude.service"):

certidude/common.py

@@ -40,6 +40,8 @@ def apt(packages):
         cmd = ["/usr/bin/apt-get", "install", "-yqq"] + packages.split(" ")
         click.echo("Running: %s" % " ".join(cmd))
         subprocess.call(cmd)
+        return True
+    return False
 
 
 def rpm(packages):
@@ -50,10 +52,13 @@ def rpm(packages):
         cmd = ["/usr/bin/dnf", "install", "-y"] + packages.split(" ")
         click.echo("Running: %s" % " ".join(cmd))
         subprocess.call(cmd)
+        return True
+    return False
 
 
 def pip(packages):
     click.echo("Running: pip install %s" % packages)
     import pip
     pip.main(['install'] + packages.split(" "))
+    return True
 

certidude/config.py

@@ -71,11 +71,6 @@ EVENT_SOURCE_SUBSCRIBE = cp.get("push", "event source subscribe")
 LONG_POLL_PUBLISH = cp.get("push", "long poll publish")
 LONG_POLL_SUBSCRIBE = cp.get("push", "long poll subscribe")
 
-if const.DOMAIN == "example.lan": # TODO: include nginx setup in Travis
-    EVENT_SOURCE_PUBLISH = ""
-    LONG_POLL_PUBLISH = ""
-    LONG_POLL_SUBSCRIBE = "//nonexistant/lp/sub/%s"
-
 LOGGING_BACKEND = cp.get("logging", "backend")
 
 if "whitelist" == AUTHORIZATION_BACKEND:

certidude/const.py

@@ -15,7 +15,7 @@ SERVER_LOG_PATH = "/var/log/certidude-server.log"
 SIGNER_SOCKET_PATH = "/run/certidude/signer.sock"
 SIGNER_PID_PATH = os.path.join(RUN_DIR, "signer.pid")
 SIGNER_LOG_PATH = "/var/log/certidude-signer.log"
-STORAGE_PATH = "/var/lib/certidude"
+STORAGE_PATH = "/var/lib/certidude/"
 
 try:
     FQDN = socket.getaddrinfo(socket.gethostname(), 0, socket.AF_INET, 0, 0, socket.AI_CANONNAME)[0][3]

certidude/errors.py

@@ -2,6 +2,9 @@
 class RequestExists(Exception):
     pass
 
+class RequestDoesNotExist(Exception):
+    pass
+
 class FatalError(Exception):
     """
     Exception to be raised when user intervention is required

certidude/templates/server/nginx.conf

@@ -23,7 +23,7 @@ server {
     root {{static_path}};
 
     location /api/ {
-        proxy_pass http://127.0.0.1{% if port != 80 %}:{{ port }}{% endif %}/api/;
+        proxy_pass http://127.0.1.1{% if port != 80 %}:{{ port }}{% endif %}/api/;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_connect_timeout 600;

tests/test_cli.py

@@ -72,6 +72,12 @@ def clean_client():
             if filename.endswith(".pem"):
                 os.unlink(os.path.join("/tmp/ca.example.lan", filename))
 
+    # Reset IPsec stuff
+    with open("/etc/ipsec.conf", "w") as fh: # TODO: make compatible with Fedora
+        pass
+    with open("/etc/ipsec.secrets", "w") as fh: # TODO: make compatible with Fedora
+        pass
+
 
 def test_cli_setup_authority():
     import os
@@ -110,12 +116,13 @@ def test_cli_setup_authority():
         os.unlink("/etc/nginx/sites-available/ca.conf")
     if os.path.exists("/etc/nginx/sites-enabled/ca.conf"):
         os.unlink("/etc/nginx/sites-enabled/ca.conf")
+    if os.path.exists("/etc/nginx/sites-available/certidude.conf"):
+        os.unlink("/etc/nginx/sites-available/certidude.conf")
+    if os.path.exists("/etc/nginx/sites-enabled/certidude.conf"):
+        os.unlink("/etc/nginx/sites-enabled/certidude.conf")
     if os.path.exists("/etc/nginx/conf.d/tls.conf"):
         os.unlink("/etc/nginx/conf.d/tls.conf")
 
-    with open("/etc/ipsec.conf", "w") as fh: # TODO: make compatible with Fedora
-        pass
-
     # Remove OpenVPN stuff
     if os.path.exists("/etc/openvpn"):
         for filename in os.listdir("/etc/openvpn"):
@@ -167,7 +174,7 @@ def test_cli_setup_authority():
     server_pid = os.fork()
     if not server_pid:
         # Fork to prevent umask, setuid, setgid side effects
-        result = runner.invoke(cli, ['serve', '-p', '80', '-l', '127.0.1.1'])
+        result = runner.invoke(cli, ['serve', '-p', '8080', '-l', '127.0.1.1'])
         assert not result.exception, result.output
         return
 
@@ -210,7 +217,7 @@ def test_cli_setup_authority():
     r = requests.get("http://ca.example.lan/nonexistant.html")
     assert r.status_code == 404, r.text
     r = requests.get("http://ca.example.lan/../nonexistant.html")
-    assert r.status_code == 403, r.text
+    assert r.status_code == 400, r.text
 
     r = client().simulate_get("/")
     assert r.status_code == 200, r.text
@@ -219,7 +226,7 @@ def test_cli_setup_authority():
     r = client().simulate_get("/nonexistant.html")
     assert r.status_code == 404, r.text
     r = client().simulate_get("/../nonexistant.html")
-    assert r.status_code == 403, r.text
+    assert r.status_code == 400, r.text
 
     # Test request submission
     buf = generate_csr(cn=u"test")
@@ -232,6 +239,7 @@ def test_cli_setup_authority():
         headers={"content-type":"application/pkcs10"})
     assert r.status_code == 202 # success
     assert "Stored request " in inbox.pop(), inbox
+    assert os.path.exists("/var/lib/certidude/ca.example.lan/requests/test.pem")
 
     # Test request deletion
     r = client().simulate_delete("/api/request/test/")
@@ -242,6 +250,7 @@ def test_cli_setup_authority():
     r = client().simulate_delete("/api/request/test/",
         headers={"User-Agent":UA_FEDORA_FIREFOX, "Authorization":admintoken})
     assert r.status_code == 403, r.text # CSRF prevented
+    assert os.path.exists("/var/lib/certidude/ca.example.lan/requests/test.pem")
     r = client().simulate_delete("/api/request/test/",
         headers={"Authorization":admintoken})
     assert r.status_code == 200, r.text
@@ -632,6 +641,7 @@ def test_cli_setup_authority():
     assert not result.exception, result.output
     assert "Writing certificate to:" in result.output, result.output
     assert os.path.exists("/tmp/ca.example.lan/server_cert.pem")
+    assert os.path.exists("/etc/openvpn/site-to-client.conf")
 
     # Reset config
     os.unlink("/etc/certidude/client.conf")
@@ -649,6 +659,7 @@ def test_cli_setup_authority():
     result = runner.invoke(cli, ["request", "--no-wait"])
     assert not result.exception, result.output
     assert "Writing certificate to:" in result.output, result.output
+    assert os.path.exists("/etc/openvpn/client-to-site.conf")
 
     # TODO: assert key, req, cert paths were included correctly in OpenVPN config
     # TODO: test client verification with curl
@@ -664,6 +675,7 @@ def test_cli_setup_authority():
 
     result = runner.invoke(cli, ['setup', 'strongswan', 'server', "-cn", "ipsec.example.lan", "ca.example.lan"])
     assert not result.exception, result.output
+    assert open("/etc/ipsec.secrets").read() == ": RSA /tmp/ca.example.lan/server_key.pem\n"
 
     result = runner.invoke(cli, ['setup', 'strongswan', 'server', "-cn", "ipsec.example.lan", "ca.example.lan"])
     assert not result.exception, result.output # client conf already exists, remove to regenerate
@@ -766,6 +778,13 @@ def test_cli_setup_authority():
     with open("/run/certidude/server.pid") as fh:
         os.kill(int(fh.read()), 1)
 
+    # Note: STORAGE_PATH was mangled above, hence it's /tmp not /var/lib/certidude
+    assert open("/etc/apparmor.d/local/usr.lib.ipsec.charon").read() == "/tmp/** r,\n"
+
     assert len(inbox) == 0, inbox # Make sure all messages were checked
 
     os.waitpid(server_pid, 0)
+
+    os.system("service nginx stop")
+    os.system("service openvpn stop")
+    os.system("ipsec stop")