# An example WSGI script for IIS/isapi-wsgi to export multiple hgweb repos

# Copyright 2010 Sune Foldager <cryo@cyanite.org>

#

# This software may be used and distributed according to the terms of the

# GNU General Public License version 2 or any later version.

#

# Requirements:

# - Python 2.6

# - PyWin32 build 214 or newer

# - Mercurial installed from source (python setup.py install)

# - IIS 7

#

# Earlier versions will in general work as well, but the PyWin32 version is

# necessary for win32traceutil to work correctly.

#

#

# Installation and use:

#

# - Download the isapi-wsgi source and run python setup.py install:

#   http://code.google.com/p/isapi-wsgi/

#

# - Run this script (i.e. python hgwebdir_wsgi.py) to get a shim dll. The

#   shim is identical for all scripts, so you can just copy and rename one

#   from an earlier run, if you wish.

#

# - Setup an IIS application where your hgwebdir is to be served from.

#   On 64-bit systems, make sure it's assigned a 32-bit app pool.

#

# - In the application, setup a wildcard script handler mapping of type

#   IpsapiModule with the shim dll as its executable. This file MUST reside

#   in the same directory as the shim. Remove all other handlers, if you wish.

#

# - Make sure the ISAPI and CGI restrictions (configured globally on the

#   web server) includes the shim dll, to allow it to run.

#

# - Adjust the configuration variables below to match your needs.

#

# Configuration file location

hgweb_config = r'c:\src\iis\hg\hgweb.config'

# Global settings for IIS path translation

path_strip = 0   # Strip this many path elements off (when using url rewrite)

path_prefix = 1  # This many path elements are prefixes (depends on the

                 # virtual path of the IIS application).

import sys

# Adjust python path if this is not a system-wide install

#sys.path.insert(0, r'c:\path\to\python\lib')

# Enable tracing. Run 'python -m win32traceutil' to debug

    import win32traceutil

# To serve pages in local charset instead of UTF-8, remove the two lines below

import os

os.environ['HGENCODING'] = 'UTF-8'

import isapi_wsgi

from mercurial import demandimport; demandimport.enable()

from mercurial.hgweb.hgwebdir_mod import hgwebdir

# Example tweak: Replace isapi_wsgi's handler to provide better error message

# Other stuff could also be done here, like logging errors etc.

class WsgiHandler(isapi_wsgi.IsapiWsgiHandler):

    error_status = '500 Internal Server Error' # less silly error message

isapi_wsgi.IsapiWsgiHandler = WsgiHandler

# Only create the hgwebdir instance once

application = hgwebdir(hgweb_config)

def handler(environ, start_response):

    # Translate IIS's weird URLs

    url = environ['SCRIPT_NAME'] + environ['PATH_INFO']

    paths = url[1:].split('/')[path_strip:]

    script_name = '/' + '/'.join(paths[:path_prefix])

    path_info = '/'.join(paths[path_prefix:])

    if path_info:

        path_info = '/' + path_info

    environ['SCRIPT_NAME'] = script_name

    environ['PATH_INFO'] = path_info

    return application(environ, start_response)

def __ExtensionFactory__():

    return isapi_wsgi.ISAPISimpleHandler(handler)

if __name__=='__main__':

    from isapi.install import *

    params = ISAPIParameters()

    HandleCommandLine(params)