D2770: hgweb: make parsedrequest part of wsgirequest

[indygreg (Gregory Szorc)]

indygreg created this revision.
Herald added a subscriber: mercurial-devel.
Herald added a reviewer: hg-reviewers.

REVISION SUMMARY
  This is kind of ugly. But upcoming commits will teach our parsedrequest
  instances about how to read from the input stream and how to parse
  form variables which might be specified on the input stream. Because
  the input stream is global state and can't be accessed without
  side-effects, we need to take actions to ensure that multiple
  consumers don't read from it independently. The easiest way to
  do this is for one object to hold a reference to both things so it
  can ensure (via attribute nuking) that consumers only touch one
  object or the other.
  
  So we create our parsed request instance from the wsgirequest
  constructor and hold a reference to it there. This is better than
  our new type holding a reference to wsgirequest because all the
  code for managing access will be temporary and we shouldn't pollute
  parsedrequest with this ugly history.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D2770

AFFECTED FILES
  mercurial/hgweb/hgweb_mod.py
  mercurial/hgweb/hgwebdir_mod.py
  mercurial/hgweb/request.py

CHANGE DETAILS

diff --git a/mercurial/hgweb/request.py b/mercurial/hgweb/request.py
--- a/mercurial/hgweb/request.py
+++ b/mercurial/hgweb/request.py
@@ -254,6 +254,8 @@
         self.server_write = None
         self.headers = []
 
+        self.req = parserequestfromenv(wsgienv)
+
     def respond(self, status, type, filename=None, body=None):
         if not isinstance(type, str):
             type = pycompat.sysstr(type)
diff --git a/mercurial/hgweb/hgwebdir_mod.py b/mercurial/hgweb/hgwebdir_mod.py
--- a/mercurial/hgweb/hgwebdir_mod.py
+++ b/mercurial/hgweb/hgwebdir_mod.py
@@ -229,7 +229,7 @@
                 yield r
 
     def _runwsgi(self, wsgireq):
-        req = requestmod.parserequestfromenv(wsgireq.env)
+        req = wsgireq.req
 
         try:
             self.refresh()
@@ -289,6 +289,11 @@
                 real = repos.get(virtualrepo)
                 if real:
                     wsgireq.env['REPO_NAME'] = virtualrepo
+                    # We have to re-parse because of updated environment
+                    # variable.
+                    # TODO this is kind of hacky and we should have a better
+                    # way of doing this than with REPO_NAME side-effects.
+                    wsgireq.req = requestmod.parserequestfromenv(wsgireq.env)
                     try:
                         # ensure caller gets private copy of ui
                         repo = hg.repository(self.ui.copy(), real)
diff --git a/mercurial/hgweb/hgweb_mod.py b/mercurial/hgweb/hgweb_mod.py
--- a/mercurial/hgweb/hgweb_mod.py
+++ b/mercurial/hgweb/hgweb_mod.py
@@ -304,7 +304,7 @@
                     yield r
 
     def _runwsgi(self, wsgireq, repo):
-        req = requestmod.parserequestfromenv(wsgireq.env)
+        req = wsgireq.req
         rctx = requestcontext(self, repo)
 
         # This state is global across all threads.



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