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authordrebs <drebs@joselito.semvergonha.org>2013-03-07 16:34:22 -0300
committerdrebs <drebs@joselito.semvergonha.org>2013-03-07 16:34:22 -0300
commit1b1def113e6ed9b8af6897e16f0d9b4c96bbfa6b (patch)
treec34b751dde12bc92628165e8af902da54e39e898 /server.py
parent4672ec4f25daa6466b2850bea416eaf77fa90d9d (diff)
Move source files to subfolder.
Diffstat (limited to 'server.py')
-rw-r--r--server.py151
1 files changed, 0 insertions, 151 deletions
diff --git a/server.py b/server.py
deleted file mode 100644
index eaa5e964..00000000
--- a/server.py
+++ /dev/null
@@ -1,151 +0,0 @@
-# -*- coding: utf-8 -*-
-"""
-A U1DB server that stores data using couchdb.
-
-This should be run with:
- twistd -n web --wsgi=leap.soledad.server.application
-"""
-
-import configparser
-from wsgiref.util import shift_path_info
-import httplib
-try:
- import simplejson as json
-except ImportError:
- import json # noqa
-from urlparse import parse_qs
-
-from twisted.web.wsgi import WSGIResource
-from twisted.internet import reactor
-
-from u1db.remote import http_app
-
-from leap.soledad.backends.couch import CouchServerState
-
-
-#-----------------------------------------------------------------------------
-# Authentication
-#-----------------------------------------------------------------------------
-
-class Unauthorized(Exception):
- """
- User authentication failed.
- """
-
-
-class SoledadAuthMiddleware(object):
- """
- Soledad Authentication WSGI middleware.
-
- In general, databases are accessed using a token provided by the LEAP API.
- Some special databases can be read without authentication.
- """
-
- def __init__(self, app, prefix, public_dbs=None):
- self.app = app
- self.prefix = prefix
- self.public_dbs = public_dbs
-
- def _error(self, start_response, status, description, message=None):
- start_response("%d %s" % (status, httplib.responses[status]),
- [('content-type', 'application/json')])
- err = {"error": description}
- if message:
- err['message'] = message
- return [json.dumps(err)]
-
- def __call__(self, environ, start_response):
- if self.prefix and not environ['PATH_INFO'].startswith(self.prefix):
- return self._error(start_response, 400, "bad request")
- shift_path_info(environ)
- qs = parse_qs(environ.get('QUERY_STRING'), strict_parsing=True)
- if 'auth_token' not in qs:
- if self.need_auth(environ):
- return self._error(start_response, 401, "unauthorized",
- "Missing Authentication Token.")
- else:
- token = qs['auth_token'][0]
- try:
- self.verify_token(environ, token)
- except Unauthorized:
- return self._error(
- start_response, 401, "unauthorized",
- "Incorrect password or login.")
- # remove auth token from query string.
- del qs['auth_token']
- qs_str = ''
- if qs:
- qs_str = reduce(lambda x, y: '&'.join([x, y]),
- map(lambda (x, y): '='.join([x, str(y)]),
- qs.iteritems()))
- environ['QUERY_STRING'] = qs_str
- return self.app(environ, start_response)
-
- def verify_token(self, environ, token):
- """
- Verify if token is valid for authenticating this action.
- """
- # TODO: implement token verification
- raise NotImplementedError(self.verify_token)
-
- def need_auth(self, environ):
- """
- Check if action can be performed on database without authentication.
-
- For now, just allow access to /shared/*.
- """
- # TODO: design unauth verification.
- return not environ.get('PATH_INFO').startswith('/shared/')
-
-
-#-----------------------------------------------------------------------------
-# Soledad WSGI application
-#-----------------------------------------------------------------------------
-
-class SoledadApp(http_app.HTTPApp):
- """
- Soledad WSGI application
- """
-
- def __call__(self, environ, start_response):
- return super(SoledadApp, self).__call__(environ, start_response)
-
-
-#-----------------------------------------------------------------------------
-# Auxiliary functions
-#-----------------------------------------------------------------------------
-
-def load_configuration(file_path):
- conf = {
- 'couch_url': 'http://localhost:5984',
- 'working_dir': '/tmp',
- 'public_dbs': 'keys',
- 'prefix': '/soledad/',
- }
- config = configparser.ConfigParser()
- config.read(file_path)
- if 'soledad-server' in config:
- for key in conf:
- if key in config['soledad-server']:
- conf[key] = config['soledad-server'][key]
- # TODO: implement basic parsing/sanitization of options comming from
- # config file.
- return conf
-
-
-#-----------------------------------------------------------------------------
-# Run as Twisted WSGI Resource
-#-----------------------------------------------------------------------------
-
-# TODO: create command-line option for choosing config file.
-conf = load_configuration('/etc/leap/soledad-server.ini')
-state = CouchServerState(conf['couch_url'])
-# TODO: change working dir to something meaningful (maybe eliminate it)
-state.set_workingdir(conf['working_dir'])
-
-application = SoledadAuthMiddleware(
- SoledadApp(state),
- conf['prefix'],
- conf['public_dbs'].split(','))
-
-resource = WSGIResource(reactor, reactor.getThreadPool(), application)