add missing schema in utils.http.sanitise_url, use in rss.py

modules/rss.py

@@ -103,7 +103,7 @@ class Module(ModuleManager.BaseModule):
             if not len(event["args_split"]) > 1:
                 raise utils.EventError("Please provide a URL")
 
-            url = event["args_split"][1]
+            url = utils.http.url_sanitise(event["args_split"][1])
             if url in rss_hooks:
                 raise utils.EventError("That URL is already being watched")
 
@@ -119,7 +119,7 @@ class Module(ModuleManager.BaseModule):
             if not len(event["args_split"]) > 1:
                 raise utils.EventError("Please provide a URL")
 
-            url = event["args_split"][1]
+            url = utils.http.url_sanitise(event["args_split"][1])
             if not url in rss_hooks:
                 raise utils.EventError("I'm not watching that URL")
             rss_hooks.remove(url)

src/utils/http.py

@@ -9,6 +9,9 @@ REGEX_URL = re.compile("https?://[A-Z0-9{}]+".format(re.escape("-._~:/%?#[]@!$&'
 
 # best-effort tidying up of URLs
 def url_sanitise(url: str):
+    if not urllib.parse.urlparse(url).scheme:
+        url = "http://%s" % url
+
     if url.endswith(")"):
         # trim ")" from the end only if there's not a "(" to match it
         # google.com/) -> google.com/