added notes to settings.yaml

moved core app config (name, version) out of settings and into app/app_settings.py
added ability to brand SneakyScope to any name
added caching of cert information from crt.sh (cache enable and lenght is configurable in settings.yaml)

streamlined header/footer loading to be more correct

app/utils/enrichment.py

@@ -30,6 +30,8 @@ days = 24 * 60
 
 GEOIP_DEFAULT_TTL = settings.cache.geoip_cache_days * days
 WHOIS_DEFAULT_TTL = settings.cache.whois_cache_days * days
+CRT_DEFAULT_TTL = settings.cache.crt_cache_days * days
+
 
 logger = get_app_logger()
 
@@ -137,6 +139,20 @@ def search_certs(domain, wildcard=True, expired=True, deduplicate=True):
         "not_before": "2018-02-08T15:47:39"
     }
     """
+    
+    cache_key = f"crt_cert:{domain}"
+    
+    # log if caching is turned on or not
+    logger.info(f"CRT Cache is set to: {settings.cache.crt_cache_enabled}")
+
+    if settings.cache.crt_cache_enabled:
+        cached = cache.read(cache_key)
+        if cached:
+            logger.info(f"[CACHE HIT] for CRT Cert: {domain}")
+            return cached
+        else:
+            logger.info(f"[CACHE MISS] for CRT Cert: {domain} - {cache_key}")
+
     base_url = "https://crt.sh/?q={}&output=json"
     if not expired:
         base_url = base_url + "&exclude=expired"
@@ -153,11 +169,21 @@ def search_certs(domain, wildcard=True, expired=True, deduplicate=True):
         try:
             content = req.content.decode('utf-8')
             data = json.loads(content)
+            # if caching
+            if settings.cache.crt_cache_enabled:
+                logger.info(f"Setting Cache for {cache_key}")
+                cache.create(cache_key, data, CRT_DEFAULT_TTL)
             return data
         except ValueError:
             # crt.sh fixed their JSON response. This shouldn't be necessary anymore
             # https://github.com/crtsh/certwatch_db/commit/f4f46ea37c23543c4cdf1a3c8867d68967641807
             data = json.loads("[{}]".format(content.replace('}{', '},{')))
+
+            # if caching
+            if settings.cache.crt_cache_enabled:
+                logger.info(f"Setting Cache for {cache_key}")
+                cache.create(cache_key, data, CRT_DEFAULT_TTL)
+
             return data
         except Exception as err:
             logger.error("Error retrieving cert information from CRT.sh.")
@@ -200,6 +226,7 @@ def gather_crtsh_certs_for_target(target):
         hostname = parse_target_to_host(target)
         result["hostname"] = hostname
 
+        # return fake return if no hostname was able to be parsed
         if hostname is None:
             return result
 
@@ -209,6 +236,7 @@ def gather_crtsh_certs_for_target(target):
 
         # Always query crt.sh for the specific hostname
         # (expired=False means we filter expired)
+
         host_certs = search_certs(hostname, wildcard=False, expired=False)
         result["crtsh"]["host_certs"] = host_certs