From fb492c384c7979e93055f9a2e9b27a7856e8b45a Mon Sep 17 00:00:00 2001
From: Adam Young <ayoung@redhat.com>
Date: Wed, 17 Aug 2011 15:36:18 -0400
Subject: [PATCH] enable proxy for dogtag

Dogtag is going to be proxied through httpd.  To make this work, it has to support renegotiation of the SSL
connection.  This patch enables renegotiate in the nss configuration file during during apache configuration,
as well as modifies libnss to set the appropriate optins on the ssl connection in order to  renegotiate.

The IPA install uses the internal ports instead of proxying through
httpd since  httpd is not set up yet.

IPA needs to Request the certificate through a port that uses authentication.  On the Dogtag side, they provide an additional mapping for this:   /ca/eeca/ca as opposed tp /ca/ee/ca  just for this purpose.

https://fedorahosted.org/freeipa/ticket/1334

add flag to pkicreate in order to enable using proxy.

adding /etc/http/conf.d/ symlink to  /etc/pki-ca/proxy.conf.  and cleanit up on uninstall
---
 ipalib/constants.py               |   10 +++++++---
 ipapython/dogtag.py               |    2 +-
 ipapython/nsslib.py               |   15 ++++++++++++++-
 ipaserver/install/cainstance.py   |   17 +++++++++++++++--
 ipaserver/install/certs.py        |    4 ++--
 ipaserver/install/httpinstance.py |    5 +++++
 ipaserver/plugins/dogtag.py       |    2 +-
 7 files changed, 45 insertions(+), 10 deletions(-)

diff --git a/ipalib/constants.py b/ipalib/constants.py
index 026e0735441eabf8dbe63fffa85da69aa151c5d7..244360fe17dee4ff91b561fb6e3f7b5f4e443726 100644
--- a/ipalib/constants.py
+++ b/ipalib/constants.py
@@ -136,9 +136,13 @@ DEFAULT_CONFIG = (
 
     # CA plugin:
     ('ca_host', FQDN),  # Set in Env._finalize_core()
-    ('ca_port', 9180),
-    ('ca_agent_port', 9443),
-    ('ca_ee_port', 9444),
+    ('ca_port', 80),
+    ('ca_agent_port', 443),
+    ('ca_ee_port', 443),
+    ('ca_install_port', 9180),
+    ('ca_agent_install_port',9443 ),
+    ('ca_ee_install_port',9444 ),
+
 
     # Special CLI:
     ('prompt_all', False),
diff --git a/ipapython/dogtag.py b/ipapython/dogtag.py
index 969535e4b95d3fc7f7f5202000bb29deef558e32..02f981974e1047a880ed05e428a86b4a4d4a6c21 100644
--- a/ipapython/dogtag.py
+++ b/ipapython/dogtag.py
@@ -34,7 +34,7 @@ def get_ca_certchain(ca_host=None):
     if ca_host is None:
         ca_host = api.env.ca_host
     chain = None
-    conn = httplib.HTTPConnection(ca_host, api.env.ca_port)
+    conn = httplib.HTTPConnection(ca_host, api.env.ca_install_port)
     conn.request("GET", "/ca/ee/ca/getCertChain")
     res = conn.getresponse()
     doc = None
diff --git a/ipapython/nsslib.py b/ipapython/nsslib.py
index e347d217992a4a549413f3e33d9248a403ee68cd..a0c5a8d36921c6eef3bf4320aab0a0c544ce82fd 100644
--- a/ipapython/nsslib.py
+++ b/ipapython/nsslib.py
@@ -208,12 +208,25 @@ class NSSConnection(httplib.HTTPConnection, NSSAddressFamilyFallback):
         self._create_socket()
 
     def _create_socket(self):
+
+        #TODO remove the try block once python-nss is guaranteed to
+	#contain these values
+	try :
+        	ssl_enable_renegotiation  = SSL_ENABLE_RENEGOTIATION   #pylint: disable=E0602
+		ssl_require_safe_negotiation = SSL_REQUIRE_SAFE_NEGOTIATION  #pylint: disable=E0602
+		ssl_renegotiate_requires_xtn = SSL_RENEGOTIATE_REQUIRES_XTN #pylint: disable=E0602
+	except :
+        	ssl_enable_renegotiation  = 20
+		ssl_require_safe_negotiation = 21
+		ssl_renegotiate_requires_xtn = 2
+
         # Create the socket here so we can do things like let the caller
         # override the NSS callbacks
         self.sock = ssl.SSLSocket(family=self.family)
         self.sock.set_ssl_option(ssl.SSL_SECURITY, True)
         self.sock.set_ssl_option(ssl.SSL_HANDSHAKE_AS_CLIENT, True)
-
+	self.sock.set_ssl_option(ssl_require_safe_negotiation, False)
+	self.sock.set_ssl_option(ssl_enable_renegotiation, ssl_renegotiate_requires_xtn)
         # Provide a callback which notifies us when the SSL handshake is complete
         self.sock.set_handshake_callback(self.handshake_callback)
 
diff --git a/ipaserver/install/cainstance.py b/ipaserver/install/cainstance.py
index 5c6c49e4b1780e5b64815cad2c39c7994d981cd4..cb542b874c5a103f823f08618d2ecd8e98267255 100644
--- a/ipaserver/install/cainstance.py
+++ b/ipaserver/install/cainstance.py
@@ -257,6 +257,7 @@ class CADSInstance(service.Service):
 
         self.step("creating directory server user", self.__create_ds_user)
         self.step("creating directory server instance", self.__create_instance)
+
         self.step("restarting directory server", self.restart_instance)
 
         self.start_creation("Configuring directory server for the CA", 30)
@@ -476,6 +477,7 @@ class CAInstance(service.Service):
         """
         return os.path.exists(self.server_root + '/' + PKI_INSTANCE_NAME)
 
+
     def configure_instance(self, host_name, dm_password,
                            admin_password, ds_port=DEFAULT_DSPORT,
                            pkcs12_info=None, master_host=None, csr_file=None,
@@ -537,6 +539,7 @@ class CAInstance(service.Service):
                 self.step("requesting RA certificate from CA", self.__request_ra_certificate)
                 self.step("issuing RA agent certificate", self.__issue_ra_cert)
                 self.step("adding RA agent as a trusted user", self.__configure_ra)
+            self.step("linking CA proxy configuration", self.__link_proxy_conf)
 
         self.start_creation("Configuring certificate server", 210)
 
@@ -557,6 +560,7 @@ class CAInstance(service.Service):
                 '-tomcat_server_port', str(TOMCAT_SERVER_PORT),
                 '-redirect', 'conf=/etc/pki-ca',
                 '-redirect', 'logs=/var/log/pki-ca',
+		'-enable_proxy'
         ]
         ipautil.run(args, env={'PKI_HOSTNAME':self.fqdn})
 
@@ -658,7 +662,7 @@ class CAInstance(service.Service):
                 args.append("-sd_hostname")
                 args.append(self.master_host)
                 args.append("-sd_admin_port")
-                args.append(str(ADMIN_SECURE_PORT))
+                args.append("443")
                 args.append("-sd_admin_name")
                 args.append("admin")
                 args.append("-sd_admin_password")
@@ -666,7 +670,7 @@ class CAInstance(service.Service):
                 args.append("-clone_start_tls")
                 args.append("true")
                 args.append("-clone_uri")
-                args.append("https://%s:%d" % (self.master_host, EE_SECURE_PORT))
+                args.append("https://%s:%d" % (self.master_host, 443))
             else:
                 args.append("-clone")
                 args.append("false")
@@ -809,6 +813,9 @@ class CAInstance(service.Service):
         finally:
             os.remove(agent_name)
 
+    def __link_proxy_conf(self):
+        os.symlink("/etc/pki-ca/proxy.conf","/etc/httpd/conf.d/ca_proxy.conf")
+
     def __configure_ra(self):
         # Create an RA user in the CA LDAP server and add that user to
         # the appropriate groups so it can issue certificates without
@@ -1069,6 +1076,11 @@ class CAInstance(service.Service):
             except ipautil.CalledProcessError, e:
                 logging.critical("failed to delete user %s" % e)
 
+        self.print_msg("Removing proxy configuration")
+        os.unlink("/etc/pki-ca/proxy.conf","/etc/httpd/conf.d/ca_proxy.conf")
+
+
+
     def publish_ca_cert(self, location):
         args = ["-L", "-n", self.canickname, "-a"]
         (cert, err, returncode) = self.__run_certutil(args)
@@ -1125,6 +1137,7 @@ def install_replica_ca(config, postinstall=False):
         # If installing this afterward the Apache NSS database already
         # exists, don't remove it.
         ca.create_ra_agent_db = False
+
     ca.configure_instance(config.host_name, config.dirman_password,
                           config.dirman_password, pkcs12_info=(cafile,),
                           master_host=config.master_host_name,
diff --git a/ipaserver/install/certs.py b/ipaserver/install/certs.py
index 738b329a6edd22501dc21459f89b271d93dc2b2c..6d5231a7eaea29fa94121ad902e84708742c9d99 100644
--- a/ipaserver/install/certs.py
+++ b/ipaserver/install/certs.py
@@ -631,7 +631,7 @@ class CertDB(object):
             password = f.readline()
             f.close()
             http_status, http_reason_phrase, http_headers, http_body = \
-                dogtag.https_request(self.host_name, api.env.ca_ee_port, "/ca/ee/ca/profileSubmitSSLClient", self.secdir, password, "ipaCert", **params)
+                dogtag.https_request(self.host_name, api.env.ca_ee_install_port, "/ca/ee/ca/profileSubmitSSLClient", self.secdir, password, "ipaCert", **params)
 
             if http_status != 200:
                 raise CertificateOperationError(error='Unable to communicate with CMS (%s)' % \
@@ -713,7 +713,7 @@ class CertDB(object):
             password = f.readline()
             f.close()
             http_status, http_reason_phrase, http_headers, http_body = \
-                dogtag.https_request(self.host_name, api.env.ca_ee_port, "/ca/ee/ca/profileSubmitSSLClient", self.secdir, password, "ipaCert", **params)
+                dogtag.https_request(self.host_name, api.env.ca_ee_install_port, "/ca/ee/ca/profileSubmitSSLClient", self.secdir, password, "ipaCert", **params)
             if http_status != 200:
                 raise RuntimeError("Unable to submit cert request")
 
diff --git a/ipaserver/install/httpinstance.py b/ipaserver/install/httpinstance.py
index d2eb27c96eb2dbf6baf5f1b24edf579cd6d0881a..d2654ba671789111fc9185702dbb358a456e5746 100644
--- a/ipaserver/install/httpinstance.py
+++ b/ipaserver/install/httpinstance.py
@@ -75,6 +75,7 @@ class HTTPInstance(service.Service):
         self.step("disabling mod_ssl in httpd", self.__disable_mod_ssl)
         self.step("setting mod_nss port to 443", self.__set_mod_nss_port)
         self.step("setting mod_nss password file", self.__set_mod_nss_passwordfile)
+        self.step("enabling mod_nss renegotiate", self.__enable_mod_nss_renegotiate)
         self.step("adding URL rewriting rules", self.__add_include)
         self.step("configuring httpd", self.__configure_http)
         self.step("setting up ssl", self.__setup_ssl)
@@ -160,6 +161,10 @@ class HTTPInstance(service.Service):
     def __set_mod_nss_nickname(self, nickname):
         installutils.set_directive(NSS_CONF, 'NSSNickname', nickname)
 
+    def __enable_mod_nss_renegotiate(self):
+        installutils.set_directive(NSS_CONF, 'NSSRenegotiation', 'on',False)
+        installutils.set_directive(NSS_CONF, 'NSSRequireSafeNegotiation', 'on',False)
+
     def __set_mod_nss_passwordfile(self):
         installutils.set_directive(NSS_CONF, 'NSSPassPhraseDialog', 'file:/etc/httpd/conf/password.conf')
 
diff --git a/ipaserver/plugins/dogtag.py b/ipaserver/plugins/dogtag.py
index d1234a0d242339cbd77d2190d3c181fd8e8c94db..23d06abc112c41bbd9bfba5d7173ed2ae84d5752 100644
--- a/ipaserver/plugins/dogtag.py
+++ b/ipaserver/plugins/dogtag.py
@@ -1514,7 +1514,7 @@ class ra(rabase.rabase):
 
         # Call CMS
         http_status, http_reason_phrase, http_headers, http_body = \
-            self._sslget('/ca/ee/ca/profileSubmitSSLClient',
+            self._sslget('/ca/eeca/ca/profileSubmitSSLClient',
                          self.env.ca_ee_port,
                          profileId='caIPAserviceCert',
                          cert_request_type=request_type,
-- 
1.7.6

