iframe-proxy | Sunbelt Computer Software

209 lines (174 loc) · 5.85 KB
import ConfigParser
import optparse
import logging
import shutil
import urlparse
from StringIO import StringIO
from BaseHTTPServer import BaseHTTPRequestHandler
from BaseHTTPServer import HTTPServer
from onelogin.saml import AuthRequest, Response
from onelogin.saml.Utils import format_finger_print, calculate_x509_fingerprint
__version__ = '0.1'
log = logging.getLogger(__name__)
class SampleAppHTTPRequestHandler(BaseHTTPRequestHandler):
    server_version = 'SampleAppHTTPRequestHandler/%s' % __version__
    def _serve_msg(self, code, msg):
        f = StringIO()
        f.write('<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">')
        f.write("<html>\n<body>\n%s</body>\n</html>\n" % msg)
        length = f.tell()
        f.seek(0)
        if code == 200:
            self.send_response(code)
        else:
            self.send_error(code, message=msg)
        self.send_header('Content-type', 'text/html')
        self.send_header('Content-Length', str(length))
        self.end_headers()
        shutil.copyfileobj(f, self.wfile)
    def _bad_request(self):
        """Serve Bad Request (400)."""
        self._serve_msg(400, 'Bad Request')
    def prepare_request(self):
        request_data = {}
        request_data['server_name'] = self.server.server_name
        request_data['server_port'] = str(self.server.server_port)
        request_data['path_info'] = self.path
        request_data['request_uri'] = self.path
        request_data['script_name'] = ''
        if self.protocol_version == 'HTTP/1.0':
            request_data['https'] = 'off'
        else:
            request_data['https'] = 'on'
        return request_data
    def log_message(self, format, *args):
        log.info(format % args)
    def do_HEAD(self):
        """Serve a HEAD request."""
        self._bad_request()
    def do_DEL(self):
        """Serve a DEL request."""
        self._bad_request()
    def do_GET(self):
        """Serve a GET request."""
        if not self.path == '/':
            self._bad_request()
            return
        url = AuthRequest.create(**self.settings)
        self.send_response(302)
        self.send_header("Cache-Control", "no-cache, no-store")
        self.send_header("Pragma", "no-cache")
        self.send_header("Location", url)
        self.end_headers()
    def do_POST(self):
        """Serve a POST request."""
        if not self.path == self.saml_post_path:
            self._bad_request()
            return
        request_data = self.prepare_request()
        length = int(self.headers['Content-Length'])
        data = self.rfile.read(length)
        query = urlparse.parse_qs(data)
        res = Response(
            request_data,
            query['SAMLResponse'].pop(),
            self.settings['idp_cert_fingerprint'],
            issuer=self.settings['issuer']
        valid = res.is_valid()
        name_id = res.name_id
        if valid:
            msg = 'The identity of {name_id} has been verified'.format(
                name_id=name_id,
            self._serve_msg(200, msg)
        else:
            msg = '{name_id} is not authorized to use this resource'.format(
                name_id=name_id,
            self._serve_msg(401, msg)
def main(config_file):
    logging.basicConfig(
        level=logging.INFO,
        format='%(asctime)s.%(msecs)03d example: %(levelname)s: %(message)s',
        datefmt='%Y-%m-%dT%H:%M:%S',
    config = ConfigParser.RawConfigParser()
    config_path = os.path.expanduser(config_file)
    config_path = os.path.abspath(config_path)
    with open(config_path) as f:
        config.readfp(f)
    host = config.get('app', 'host')
    port = config.get('app', 'port')
    port = int(port)
    settings = dict()
    settings['assertion_consumer_service_url'] = config.get(
        'saml',
        'assertion_consumer_service_url'
    settings['issuer'] = config.get(
        'saml',
        'issuer'
    settings['name_identifier_format'] = config.get(
        'saml',
        'name_identifier_format'
    settings['idp_sso_target_url'] = config.get(
        'saml',
        'idp_sso_target_url'
    settings['idp_cert_file'] = config.get(
        'saml',
        'idp_cert_file'
    settings['idp_cert_fingerprint'] = config.get(
        'saml',
        'idp_cert_fingerprint'
    cert_file = settings.pop('idp_cert_file', None)
    # idp_cert_file has priority over idp_cert_fingerprint
    if cert_file:
        cert_path = os.path.expanduser(cert_file)
        cert_path = os.path.abspath(cert_path)
        with open(cert_path) as f:
            cert = f.read()
            fingerprint = calculate_x509_fingerprint(cert)
            if fingerprint:
                settings['idp_cert_fingerprint'] = fingerprint
        formated = format_finger_print(settings['idp_cert_fingerprint'])
        settings['idp_cert_fingerprint'] = formated
    parts = urlparse.urlparse(settings['assertion_consumer_service_url'])
    SampleAppHTTPRequestHandler.protocol_version = 'HTTP/1.0'
    SampleAppHTTPRequestHandler.settings = settings
    SampleAppHTTPRequestHandler.saml_post_path = parts.path
    httpd = HTTPServer(
        (host, port),
        SampleAppHTTPRequestHandler,
    socket_name = httpd.socket.getsockname()
    log.info(
        'Serving HTTP on {host} port {port} ...'.format(
            host=socket_name[0],
            port=socket_name[1],
    httpd.serve_forever()
if __name__ == '__main__':
    parser = optparse.OptionParser(
        usage='%prog [OPTS]',
    parser.add_option(
        '--config-file',
        metavar='PATH',
        help='The configuration file containing the app and SAML settings',
    parser.set_defaults(
        config_file='example.cfg'
    options, args = parser.parse_args()
    if args:
        parser.error('Wrong number of arguments')
    main(options.config_file)
Sunbelt Computer Software

PL/B Language Development and Support

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Sunbelt Computer Software

PL/B Language Development and Support

FilesExpand file tree

example.py

Latest commit

History

example.py

File metadata and controls
