Index: smart/fetcher.py
===================================================================
--- smart/fetcher.py	(revision 896)
+++ smart/fetcher.py	(working copy)
@@ -68,6 +68,7 @@
         self._maxactivedownloads = 0
         self.time = 0
         self._eta = 0
+        self._httpheaders = {}
 
     def reset(self):
         self._items.clear()
@@ -401,6 +402,12 @@
                 return True, None
             return True
 
+    def setHttpHeaders(self, http_headers):
+        self._httpheaders = http_headers
+
+    def getHttpHeaders(self):
+        return self._httpheaders
+
 class FetchItem(object):
 
     def __init__(self, fetcher, url, mirror):
@@ -1171,6 +1178,12 @@
                 else:
                     partsize = 0
 
+                extraheaders = fetcher.getHttpHeaders()
+                if extraheaders:
+                    for key in extraheaders.keys():
+                        value = extraheaders[key]
+                        opener.addheader(key, "%s" % value)
+ 
                 remote = opener.open(url.original)
 
                 if hasattr(remote, "errcode") and remote.errcode == 416: