wget: only allow http/https/ftp/ftps (#50):

these are all the protocols that are currently supported by wget,
so this has no practical effect aside from making sure we won't
suddenly get file:// support or something (which would be bad)

bin/hooks/wget.py

@@ -37,6 +37,10 @@ def main():
     if "://" not in url:
         url = "https://" + url
 
+    proto = url.split("://")[0].lower()
+    if proto not in ("http", "https", "ftp", "ftps"):
+        raise Exception("bad proto {}".format(proto))
+
     os.chdir(inf["ap"])
 
     name = url.split("?")[0].split("/")[-1]

bin/mtag/wget.py

@@ -65,6 +65,10 @@ def main():
     if "://" not in url:
         url = "https://" + url
 
+    proto = url.split("://")[0].lower()
+    if proto not in ("http", "https", "ftp", "ftps"):
+        raise Exception("bad proto {}".format(proto))
+
     os.chdir(fdir)
 
     name = url.split("?")[0].split("/")[-1]