From: Luca Wehrstedt <lerks@users.sourceforge.net>
Date: Sun, 30 Oct 2011 16:37:29 +0000 (+0100)
Subject: Add Etag header on HEAD requests for StaticFileHandler.
X-Git-Tag: v2.2.0~14^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=848244ad0449a1906004ee0d7ccda3162d07e929;p=thirdparty%2Ftornado.git

Add Etag header on HEAD requests for StaticFileHandler.
---

diff --git a/tornado/web.py b/tornado/web.py
index 78267b3ae..86447bdc4 100644
--- a/tornado/web.py
+++ b/tornado/web.py
@@ -1485,6 +1485,10 @@ class StaticFileHandler(RequestHandler):
 
         if not include_body:
             self.set_header("Content-Length", os.path.getsize(abspath))
+            with open(abspath, "rb") as file:
+                hasher = hashlib.sha1()
+                hasher.update(file.read())
+                self.set_header("Etag", '"%s"' % hasher.hexdigest())
             return
         file = open(abspath, "rb")
         try: