|
|
# hgweb/wsgicgi.py - CGI->WSGI translator
|
|
|
#
|
|
|
# Copyright 2006 Eric Hopper <hopper@omnifarious.org>
|
|
|
#
|
|
|
# This software may be used and distributed according to the terms of the
|
|
|
# GNU General Public License version 2 or any later version.
|
|
|
#
|
|
|
# This was originally copied from the public domain code at
|
|
|
# http://www.python.org/dev/peps/pep-0333/#the-server-gateway-side
|
|
|
|
|
|
from __future__ import absolute_import
|
|
|
|
|
|
import os
|
|
|
|
|
|
from ..pycompat import getattr
|
|
|
from .. import pycompat
|
|
|
|
|
|
from ..utils import procutil
|
|
|
|
|
|
from . import common
|
|
|
|
|
|
|
|
|
def launch(application):
|
|
|
procutil.setbinary(procutil.stdin)
|
|
|
procutil.setbinary(procutil.stdout)
|
|
|
|
|
|
environ = dict(pycompat.iteritems(os.environ)) # re-exports
|
|
|
environ.setdefault('PATH_INFO', b'')
|
|
|
if environ.get('SERVER_SOFTWARE', '').startswith('Microsoft-IIS'):
|
|
|
# IIS includes script_name in PATH_INFO
|
|
|
scriptname = environ['SCRIPT_NAME']
|
|
|
if environ['PATH_INFO'].startswith(scriptname):
|
|
|
environ['PATH_INFO'] = environ['PATH_INFO'][len(scriptname) :]
|
|
|
|
|
|
stdin = procutil.stdin
|
|
|
if environ.get('HTTP_EXPECT', '').lower() == '100-continue':
|
|
|
stdin = common.continuereader(stdin, procutil.stdout.write)
|
|
|
|
|
|
environ['wsgi.input'] = stdin
|
|
|
environ['wsgi.errors'] = procutil.stderr
|
|
|
environ['wsgi.version'] = (1, 0)
|
|
|
environ['wsgi.multithread'] = False
|
|
|
environ['wsgi.multiprocess'] = True
|
|
|
environ['wsgi.run_once'] = True
|
|
|
|
|
|
if environ.get('HTTPS', 'off').lower() in ('on', '1', 'yes'):
|
|
|
environ['wsgi.url_scheme'] = 'https'
|
|
|
else:
|
|
|
environ['wsgi.url_scheme'] = 'http'
|
|
|
|
|
|
headers_set = []
|
|
|
headers_sent = []
|
|
|
out = procutil.stdout
|
|
|
|
|
|
def write(data):
|
|
|
if not headers_set:
|
|
|
raise AssertionError(b"write() before start_response()")
|
|
|
|
|
|
elif not headers_sent:
|
|
|
# Before the first output, send the stored headers
|
|
|
status, response_headers = headers_sent[:] = headers_set
|
|
|
out.write(b'Status: %s\r\n' % pycompat.bytesurl(status))
|
|
|
for hk, hv in response_headers:
|
|
|
out.write(
|
|
|
b'%s: %s\r\n'
|
|
|
% (pycompat.bytesurl(hk), pycompat.bytesurl(hv))
|
|
|
)
|
|
|
out.write(b'\r\n')
|
|
|
|
|
|
out.write(data)
|
|
|
out.flush()
|
|
|
|
|
|
def start_response(status, response_headers, exc_info=None):
|
|
|
if exc_info:
|
|
|
try:
|
|
|
if headers_sent:
|
|
|
# Re-raise original exception if headers sent
|
|
|
raise exc_info[0](exc_info[1], exc_info[2])
|
|
|
finally:
|
|
|
exc_info = None # avoid dangling circular ref
|
|
|
elif headers_set:
|
|
|
raise AssertionError(b"Headers already set!")
|
|
|
|
|
|
headers_set[:] = [status, response_headers]
|
|
|
return write
|
|
|
|
|
|
content = application(environ, start_response)
|
|
|
try:
|
|
|
for chunk in content:
|
|
|
write(chunk)
|
|
|
if not headers_sent:
|
|
|
write(b'') # send headers now if body was empty
|
|
|
finally:
|
|
|
getattr(content, 'close', lambda: None)()
|
|
|
|
