Fix xml parser when host is up but not ports are open (#46). Also fix error when getting description from the cache. The entire vuln description object should be saved in the cache not just the string of the description. Also added all __pycache__ files to gitignore

.gitignore

@@ -0,0 +1 @@
+__pycache__

contrib/descriptions/cveproject.py

@@ -29,8 +29,9 @@ class CveProjectProvider(VulnDescriptionProvider):
                 response.raise_for_status()
                 cve_json = response.json()
                 description = cve_json['description']['description_data'][0]['value']
-                self.cache[vuln] = description
-                return VulnDescription(description, self.nist_uri_template.format(vuln))
+                vuln_description = VulnDescription(description, self.nist_uri_template.format(vuln))
+                self.cache[vuln] = vuln_description
+                return vuln_description
         except HTTPError as he:
             return VulnDescription('', 'Description fetching error: ' + str(he))
 

contrib/parsers/flan_xml_parser.py

@@ -113,7 +113,7 @@ class FlanXmlParser:
         if not ip_addr:
             return
 
-        if host['status']['@state'] == 'up' and 'port' in host['ports']:
+        if host['status']['@state'] == 'up' and 'ports' in host.keys() and 'port' in host['ports']:
             ports = host['ports']['port']
             if isinstance(ports, list):
                 for p in ports: