Python script for making WSGI isapi for Bazaar DVCS smart server

bzr_wsgi.py

from bzrlib.transport.http import wsgi
import sys
import os
import isapi_wsgi

if hasattr(sys, 'isapidllhandle'):
    import win32traceutil

path_strip = 0   # Strip this many path elements off (when using url rewrite)
path_prefix = 0  # This many path elements are prefixes (depends on the
                 # virtual path of the IIS application).

root_dir = r'D:\Repository\bzr'


def application(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

    if '/.bzr' in path_info and path_info[-11:] != '/.bzr/smart':
        with open(root_dir + path_info.replace('/',os.sep),'rt') as f:
            response_body = f.read()
            status = '200 OK'
            response_headers = [('Content-Type', 'application/octet-stream'),
                                ('Content-Length', str(len(response_body)))]
            start_response(status, response_headers)
            return [response_body]
    else:
        app = wsgi.make_app(
            root=root_dir,
            prefix='',
            path_var='PATH_INFO',
            readonly=False,
            enable_logging=False)
        return app(environ, start_response)
                 

def __ExtensionFactory__():
    return isapi_wsgi.ISAPISimpleHandler(application)

if __name__=='__main__':
    from isapi.install import *
    params = ISAPIParameters()
    HandleCommandLine(params)

use this script just like Mercurial. No need to follow the canonical site bad document.