url: add HTTP handler that uses a proxied socket
Now that we have a socket proxy that can log I/O, we need to teach
mechanisms that open URLs how to use it.
We invent a custom HTTP handler class that knows how to proxy
sockets as soon as they are opened. We teach the high-level
opener() to accept logging arguments so a logging HTTP handler
can be constructed.
We don't yet support intercepting HTTPS sockets because I
don't want to go down that rabbit hole.
For the record, the urllib API is crazy and it took way too long
to figure out at what levels I needed to plug in to modify
the socket.
# no-check-commit because we must name http_open that way
Differential Revision: https://phab.mercurial-scm.org/D2722
#!/usr/bin/env python
#
# An example hgweb CGI script, edit as necessary
# See also https://mercurial-scm.org/wiki/PublishingRepositories
# Path to repo or hgweb config to serve (see 'hg help hgweb')
config = "/path/to/repo/or/config"
# Uncomment and adjust if Mercurial is not installed system-wide
# (consult "installed modules" path from 'hg debuginstall'):
#import sys; sys.path.insert(0, "/path/to/python/lib")
# Uncomment to send python tracebacks to the browser if an error occurs:
#import cgitb; cgitb.enable()
from mercurial import demandimport; demandimport.enable()
from mercurial.hgweb import hgweb, wsgicgi
application = hgweb(config)
wsgicgi.launch(application)