From 0a59819dcc209fe5c672f4784088ee44c8f6b6c0 Mon Sep 17 00:00:00 2001
From: Fredrik Tolf <fredrik@dolda2000.com>
Date: Mon, 30 May 2011 08:50:33 +0200
Subject: [PATCH] Made requests shallow-cloneable.

---
 wrw/__init__.py |  3 +--
 wrw/req.py      | 44 ++++++++++++++++++++++++++++++++++++++++++++
 wrw/util.py     |  2 +-
 3 files changed, 46 insertions(+), 3 deletions(-)

diff --git a/wrw/__init__.py b/wrw/__init__.py
index 61c6e04..aec9825 100644
--- a/wrw/__init__.py
+++ b/wrw/__init__.py
@@ -1,6 +1,5 @@
-__all__ = ["request", "wsgiwrap", "restart", "cookie", "formdata"]
+__all__ = ["wsgiwrap", "restart", "cookie", "formdata"]
 
-from req import request
 from util import wsgiwrap, persession
 from dispatch import restart
 import cookie
diff --git a/wrw/req.py b/wrw/req.py
index f3dc31f..0d26964 100644
--- a/wrw/req.py
+++ b/wrw/req.py
@@ -50,6 +50,16 @@ def fixcase(str):
     return str
 
 class request(object):
+    def copy(self):
+        return copyrequest(self)
+
+    def shift(self, n):
+        new = self.copy()
+        new.uriname = self.uriname + self.pathinfo[:n]
+        new.pathinfo = self.pathinfo[n:]
+        return new
+
+class origrequest(request):
     def __init__(self, env):
         self.env = env
         self.uriname = env["SCRIPT_NAME"]
@@ -117,3 +127,37 @@ class request(object):
             for val in self.ohead.getlist(nm):
                 hdrs.append((nm, val))
         startreq("%s %s" % self.statuscode, hdrs)
+
+    def topreq(self):
+        return self
+
+class copyrequest(request):
+    def __init__(self, p):
+        self.parent = p
+        self.top = p.topreq()
+        self.env = p.env
+        self.uriname = p.uriname
+        self.filename = p.filename
+        self.uri = p.uri
+        self.pathinfo = p.pathinfo
+        self.query = p.query
+        self.remoteaddr = p.remoteaddr
+        self.serverport = p.serverport
+        self.https = p.https
+        self.ihead = p.ihead
+        self.ohead = p.ohead
+
+    def status(self, code, msg):
+        return self.parent.status(code, msg)
+
+    def item(self, id):
+        return self.top.item(id)
+
+    def withres(self, res):
+        return self.top.withres(res)
+
+    def oncommit(self, fn):
+        return self.top.oncommit(fn)
+
+    def topreq(self):
+        return self.parent.topreq()
diff --git a/wrw/util.py b/wrw/util.py
index 86836bd..09b9e36 100644
--- a/wrw/util.py
+++ b/wrw/util.py
@@ -2,7 +2,7 @@ import req, dispatch, session
 
 def wsgiwrap(callable):
     def wrapper(env, startreq):
-        return dispatch.handle(req.request(env), startreq, callable)
+        return dispatch.handle(req.origrequest(env), startreq, callable)
     return wrapper
 
 def persession(data = None):
-- 
2.11.0