too much stuff. uploader script from template. dropdown menu for tools

code/utils/utils.py

@@ -3,8 +3,18 @@ from datetime import datetime
 from flask import current_app as app
 try:
     from urllib.request import pathname2url
+    from urllib.request import URLopener
+    from urllib.request import urlparse
 except ImportError:
     from urllib import pathname2url
+    from urllib import URLopener
+    from urlparse import urlparse
+
+
+def download_url(url,filename):
+    downloader = URLopener()
+    downloader.retrieve(url, filename)
+    return
 
 def file_date_human(num):
     return datetime.fromtimestamp(
@@ -61,6 +71,14 @@ def is_path_safe(path):
     return True
 
 
+def is_valid_url(url, qualifying = None):
+    min_attributes = ('scheme', 'netloc')
+    qualifying = min_attributes if qualifying is None else qualifying
+    token = urlparse(url)
+    return all([getattr(token, qualifying_attr)
+                for qualifying_attr in qualifying])
+
+
 def iter_folder_files(path, recursive = True):
     if recursive:
         for dirpath, dirnames, filenames in os.walk(path, topdown = False):