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Added a simple cache-helper function.
[wrw.git]
/
wrw
/
util.py
diff --git
a/wrw/util.py
b/wrw/util.py
index
cfc2c8c
..
abf865e
100644
(file)
--- a/
wrw/util.py
+++ b/
wrw/util.py
@@
-1,5
+1,5
@@
-import inspect
-import req, dispatch, session, form, resp
+import inspect
, math
+import req, dispatch, session, form, resp
, proto
def wsgiwrap(callable):
def wrapper(env, startreq):
def wsgiwrap(callable):
def wrapper(env, startreq):
@@
-233,3
+233,10
@@
class specdirty(sessiondata):
ss[i] = specslot.unbound
else:
ss[i] = val
ss[i] = specslot.unbound
else:
ss[i] = val
+
+def datecheck(req, mtime):
+ if "If-Modified-Since" in req.ihead:
+ rtime = proto.phttpdate(req.ihead["If-Modified-Since"])
+ if rtime >= math.floor(mtime):
+ raise resp.unmodified()
+ req.ohead["Last-Modified"] = proto.httpdate(mtime)