pki-server system certificate from nssdb

System certificates are stored in CS.cfg and nssdb. This is redundant,
all operations should use the same source for the certificate which is
the nssdb.

This modify the following command in order to get the certificate from
nssdb:

  [root@pki /] # pki-server cert-export --cert-file <filename>

base/common/python/pki/nssdb.py

@@ -2009,6 +2009,8 @@ def get_cert_info(self, nickname, token=None):
         cert = {}
         cert['object'] = cert_obj
 
+        cert['data'] = self.get_cert(nickname=nickname, token=token, output_format='base64')
+
         cert['serial_number'] = cert_obj.serial_number
 
         cert['issuer'] = pki.convert_x509_name_to_dn(cert_obj.issuer)

base/server/python/pki/server/subsystem.py

@@ -306,7 +306,6 @@ def get_cert_info(self, tag):
         cert['id'] = tag
         cert['nickname'] = self.config.get('%s.%s.nickname' % (self.name, tag))
         cert['token'] = self.config.get('%s.%s.tokenname' % (self.name, tag))
-        cert['data'] = self.config.get('%s.%s.cert' % (self.name, tag))
         cert['request'] = self.config.get('%s.%s.certreq' % (self.name, tag))
         cert['certusage'] = self.config.get('%s.cert.%s.certusage' % (self.name, tag))