Expose full certificate RFC 4514 Distinguished Name string

Using rfc4514_string() method added in cryptography version 2.5.

lemur/certificates/models.py

@@ -227,6 +227,10 @@ class Certificate(db.Model):
     def location(self):
         return defaults.location(self.parsed_cert)
 
+    @property
+    def distinguished_name(self):
+        return self.parsed_cert.subject.rfc4514_string()
+
     @property
     def key_type(self):
         if isinstance(self.parsed_cert.public_key(), rsa.RSAPublicKey):

lemur/certificates/schemas.py

@@ -206,6 +206,7 @@ class CertificateOutputSchema(LemurOutputSchema):
 
     cn = fields.String()
     common_name = fields.String(attribute='cn')
+    distinguished_name = fields.String()
 
     not_after = fields.DateTime()
     validity_end = ArrowDateTime(attribute='not_after')

lemur/static/app/angular/certificates/view/view.tpl.html

@@ -83,6 +83,8 @@
                     </div>
                     <!-- Certificate fields -->
                     <div class="list-group-item">
+                      <dt>Distinguished Name</dt>
+                      <dd>{{ certificate.distinguishedName }}</dd>
                       <dt>Certificate Authority</dt>
                       <dd>{{ certificate.authority ? certificate.authority.name : "Imported" }} <span class="text-muted">({{ certificate.issuer }})</span></dd>
                       <dt>Serial</dt>

lemur/tests/test_certificates.py

@@ -619,6 +619,12 @@ def test_certificate_get_body(client):
     response_body = client.get(api.url_for(Certificates, certificate_id=1), headers=VALID_USER_HEADER_TOKEN).json
     assert response_body['serial'] == '211983098819107449768450703123665283596'
     assert response_body['serialHex'] == '9F7A75B39DAE4C3F9524C68B06DA6A0C'
+    assert response_body['distinguishedName'] == ('CN=LemurTrust Unittests Class 1 CA 2018,'
+                                                  'O=LemurTrust Enterprises Ltd,'
+                                                  'OU=Unittesting Operations Center,'
+                                                  'C=EE,'
+                                                  'ST=N/A,'
+                                                  'L=Earth')
 
 
 @pytest.mark.parametrize("token,status", [