Make sure replication works after DM password is changed

Replica information file contains the file `cacert.p12` which is protected by
the Directory Manager password of the initial IPA server installation. The DM
password of the initial installation is also used for the PKI admin user
password.

If the DM password is changed after the IPA server installation, the replication
fails.

To prevent this failure, add the following steps to ipa-replica-prepare:
1. Regenerate the `cacert.p12` file and protect it with the current DM password
2. Update the password of the PKI admin user with the current DM password

https://fedorahosted.org/freeipa/ticket/3594

1 files changed, 36 insertions, 0 deletions

diff --git a/ipaserver/install/ipa_replica_prepare.py b/ipaserver/install/ipa_replica_prepare.py
index f6af28e3a..a92e9a111 100644
--- a/ipaserver/install/ipa_replica_prepare.py
+++ b/ipaserver/install/ipa_replica_prepare.py
@@ -274,6 +274,11 @@ class ReplicaPrepare(admintool.AdminTool):
             self.copy_info_file(options.dirsrv_pkcs12, "dscert.p12")
         else:
             if ipautil.file_exists(options.ca_file):
+                # Since it is possible that the Directory Manager password
+                # has changed since ipa-server-install, we need to regenerate
+                # the CA PKCS#12 file and update the pki admin user password
+                self.regenerate_ca_file(options.ca_file)
+                self.update_pki_admin_password()
                 self.copy_info_file(options.ca_file, "cacert.p12")
             else:
                 raise admintool.ScriptError("Root CA PKCS#12 not "
@@ -505,3 +510,34 @@ class ReplicaPrepare(admintool.AdminTool):
                 db.export_pkcs12(pkcs12_fname, agent_name, "ipaCert")
         finally:
             os.remove(agent_name)
+
+    def update_pki_admin_password(self):
+        ldap = ldap2(shared_instance=False)
+        ldap.connect(
+            bind_dn=DN(('cn', 'directory manager')),
+            bind_pw=self.dirman_password
+        )
+        dn = DN('uid=admin', 'ou=people', 'o=ipaca')
+        ldap.modify_password(dn, self.dirman_password)
+        ldap.disconnect()
+
+    def regenerate_ca_file(self, ca_file):
+        dm_pwd_fd = ipautil.write_tmp_file(self.dirman_password)
+
+        keydb_pwd = ''
+        with open('/etc/pki/pki-tomcat/password.conf') as f:
+            for line in f.readlines():
+                key, value = line.strip().split('=')
+                if key == 'internal':
+                    keydb_pwd = value
+                    break
+
+        keydb_pwd_fd = ipautil.write_tmp_file(keydb_pwd)
+
+        ipautil.run([
+            '/usr/bin/PKCS12Export',
+            '-d', '/etc/pki/pki-tomcat/alias/',
+            '-p', keydb_pwd_fd.name,
+            '-w', dm_pwd_fd.name,
+            '-o', ca_file
+        ])