fix: performance of headless request creation (#317)

Refs: 
#316
0e13c11

Products/zms/_cachemanager.py

@@ -19,6 +19,8 @@
 # Imports.
 from Products.zms import standard
 
+headless_http_request = standard.create_headless_http_request()
+
 class Buff(object):
   pass
 
@@ -43,7 +45,7 @@ def getReqBuffId(self, key):
     #  Clear buffered values from Http-Request.
     # --------------------------------------------------------------------------
     def clearReqBuff(self, prefix='', REQUEST=None):
-      request = self.get('REQUEST', standard.create_headless_http_request())
+      request = self.get('REQUEST', headless_http_request )
       buff = request.get('__buff__', Buff())
       reqBuffId = self.getReqBuffId(prefix)
       if len(prefix) > 0:
@@ -60,7 +62,7 @@ def clearReqBuff(self, prefix='', REQUEST=None):
     #  @throws Exception
     # --------------------------------------------------------------------------
     def fetchReqBuff(self, key, REQUEST=None):
-      request = self.get('REQUEST', standard.create_headless_http_request())
+      request = self.get('REQUEST', headless_http_request )
       buff = request['__buff__']
       reqBuffId = self.getReqBuffId(key)
       return getattr(buff, reqBuffId)
@@ -71,7 +73,7 @@ def fetchReqBuff(self, key, REQUEST=None):
     #  Returns value and stores it in buffer of Http-Request.
     # --------------------------------------------------------------------------
     def storeReqBuff(self, key, value, REQUEST=None):
-      request = self.get('REQUEST', standard.create_headless_http_request())
+      request = self.get('REQUEST', headless_http_request )
       buff = request.get('__buff__', None)
       if buff is None:
         buff = Buff()

Products/zms/zmsobject.py

@@ -925,7 +925,7 @@ def default(*args, **kwargs):
         abs_url = args[1]['abs_url']
         forced = args[1]['forced']
         if context.getConfProperty('ZMSObject.getAbsoluteUrlInContext', False):
-          if context.getHome() != context.getHome():
+          if context.getHome() != self.getHome():
             protocol = context.getConfProperty('ASP.protocol', 'http')
             domain = context.getConfProperty('ASP.ip_or_domain', None)
             if domain: