Require an imported certificate's issuer to match our issuer.

The goal is to not import foreign certificates.

This caused a bunch of tests to fail because we had a hardcoded server
certificate. Instead a developer will need to run make-testcert to
create a server certificate generated by the local CA to test against.

ticket 1134

make-testcert

@@ -0,0 +1,135 @@
+#!/usr/bin/python
+#
+# Authors:
+#   Rob Crittenden <rcritten@redhat.com>
+#
+# Copyright (C) 2011  Red Hat
+# see file 'COPYING' for use and warranty information
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+"""
+Generate a custom certificate used in the service unit tests. The certificate
+will be created in tests/test_xmlrpc/service.crt
+"""
+import sys
+import os
+import tempfile
+import shutil
+import nss.nss as nss
+from ipalib import api, x509, backend, errors
+from ipaserver.plugins import rabase
+from ipapython import ipautil
+
+CERTPATH = 'tests/test_xmlrpc/service.crt'
+
+def run_certutil(reqdir, args, stdin=None):
+    """
+    Run an NSS certutil command
+    """
+    new_args = ["/usr/bin/certutil", "-d", reqdir]
+    new_args = new_args + args
+    return ipautil.run(new_args, stdin)
+
+def generateCSR(reqdir, pwname, subject):
+    """
+    Create a CSR for the given subject.
+    """
+    run_certutil(reqdir, ["-R", "-s", subject,
+                       "-o", '%s/req' % reqdir,
+                       "-z", "/etc/group",
+                       "-f", pwname,
+                       "-a",
+                       ])
+    fp = open('%s/req' % reqdir, "r")
+    data = fp.read()
+    fp.close()
+    return data
+
+class client(backend.Executioner):
+    """
+    A simple-minded IPA client that can execute remote commands.
+    """
+
+    def run(self, method, *args, **options):
+        self.create_context()
+        result = self.execute(method, *args, **options)
+        return result
+
+
+def makecert(reqdir):
+    """
+    Generate a service certificate that can be used during unit testing.
+    """
+    cfg = dict(
+        context='cli',
+        in_server=False,
+        debug=False,
+        verbose=0,
+    )
+
+    api.bootstrap(**cfg)
+    api.register(client)
+    api.finalize()
+
+    # This needs to be imported after the API is initialized
+    from ipalib.plugins.service import make_pem
+
+    ra = rabase.rabase()
+    if not os.path.exists(ra.sec_dir) and api.env.xmlrpc_uri == 'http://localhost:8888/ipa/xml':
+        sys.exit('The in-tree self-signed CA is not configured, see tests/test_xmlrpc/test_cert.py')
+
+    pwname = reqdir + "/pwd"
+
+    # Create an empty password file
+    fp = open(pwname, "w")
+    fp.write("\n")
+    fp.close()
+
+    # Generate NSS cert database to store the private key for our CSR
+    run_certutil(reqdir, ["-N", "-f", pwname])
+
+    cert = None
+    subject = 'CN=%s,O=%s' % (api.env.host, api.env.realm)
+    princ = 'unittest/%s@%s' % (api.env.host, api.env.realm)
+    csr = unicode(generateCSR(reqdir, pwname, subject))
+
+    try:
+        res = api.Backend.client.run('cert_request', csr, principal=princ,
+            add=True)
+        cert = make_pem(res['result']['certificate'])
+        fd = open(CERTPATH, 'w')
+        fd.write(cert)
+        fd.close()
+    except errors.NotFound:
+        return "certificate request failed"
+    except errors.CommandError:
+        return "You need to set enable_ra=True in ~/.ipa/default.conf"
+
+    nss.nss_init_nodb()
+    c = x509.load_certificate(cert, x509.PEM)
+    print c
+
+    return 0
+
+reqdir = None
+
+if os.path.exists(CERTPATH):
+    print "Test certificate %s exists, skipping." % CERTPATH
+    sys.exit(0)
+try:
+    reqdir = tempfile.mkdtemp(prefix = "tmp-")
+    sys.exit(makecert(reqdir))
+finally:
+    shutil.rmtree(reqdir)