Changeset - 815bf70a88ce
[Not reviewed]
default
0 4 0
Søren Løvborg - 10 years ago 2015-07-14 13:59:59
kwi@kwi.dk
AuthUser: simplify check_ip_allowed and drop is_ip_allowed

check_ip_allowed is always called with user_id and inherit_from_default
arguments taken from the same User/AuthUser object, so just take that
object instead. This simplifies the is_ip_allowed method to the point
where it can be removed.
4 files changed with 11 insertions and 20 deletions:
0 comments (0 inline, 0 general)
kallithea/controllers/api/__init__.py
Show inline comments
 
@@ -65,195 +65,194 @@ def jsonrpc_error(message, retid=None, c
 
    :param message:
 
    """
 
    from pylons.controllers.util import Response
 
    return Response(
 
        body=json.dumps(dict(id=retid, result=None, error=message)),
 
        status=code,
 
        content_type='application/json'
 
    )
 

	
 

	
 
class JSONRPCController(WSGIController):
 
    """
 
     A WSGI-speaking JSON-RPC controller class
 

	
 
     See the specification:
 
     <http://json-rpc.org/wiki/specification>`.
 

	
 
     Valid controller return values should be json-serializable objects.
 

	
 
     Sub-classes should catch their exceptions and raise JSONRPCError
 
     if they want to pass meaningful errors to the client.
 

	
 
     """
 

	
 
    def _get_ip_addr(self, environ):
 
        return _get_ip(environ)
 

	
 
    def _get_method_args(self):
 
        """
 
        Return `self._rpc_args` to dispatched controller method
 
        chosen by __call__
 
        """
 
        return self._rpc_args
 

	
 
    def __call__(self, environ, start_response):
 
        """
 
        Parse the request body as JSON, look up the method on the
 
        controller and if it exists, dispatch to it.
 
        """
 
        try:
 
            return self._handle_request(environ, start_response)
 
        finally:
 
            meta.Session.remove()
 

	
 
    def _handle_request(self, environ, start_response):
 
        start = time.time()
 
        ip_addr = self.ip_addr = self._get_ip_addr(environ)
 
        self._req_id = None
 
        if 'CONTENT_LENGTH' not in environ:
 
            log.debug("No Content-Length")
 
            return jsonrpc_error(retid=self._req_id,
 
                                 message="No Content-Length in request")
 
        else:
 
            length = environ['CONTENT_LENGTH'] or 0
 
            length = int(environ['CONTENT_LENGTH'])
 
            log.debug('Content-Length: %s' % length)
 

	
 
        if length == 0:
 
            log.debug("Content-Length is 0")
 
            return jsonrpc_error(retid=self._req_id,
 
                                 message="Content-Length is 0")
 

	
 
        raw_body = environ['wsgi.input'].read(length)
 

	
 
        try:
 
            json_body = json.loads(raw_body)
 
        except ValueError, e:
 
            # catch JSON errors Here
 
            return jsonrpc_error(retid=self._req_id,
 
                                 message="JSON parse error ERR:%s RAW:%r"
 
                                 % (e, raw_body))
 

	
 
        # check AUTH based on API key
 
        try:
 
            self._req_api_key = json_body['api_key']
 
            self._req_id = json_body['id']
 
            self._req_method = json_body['method']
 
            self._request_params = json_body['args']
 
            if not isinstance(self._request_params, dict):
 
                self._request_params = {}
 

	
 
            log.debug(
 
                'method: %s, params: %s' % (self._req_method,
 
                                            self._request_params)
 
            )
 
        except KeyError, e:
 
            return jsonrpc_error(retid=self._req_id,
 
                                 message='Incorrect JSON query missing %s' % e)
 

	
 
        # check if we can find this session using api_key
 
        try:
 
            u = User.get_by_api_key(self._req_api_key)
 
            if u is None:
 
                return jsonrpc_error(retid=self._req_id,
 
                                     message='Invalid API key')
 

	
 
            #check if we are allowed to use this IP
 
            auth_u = AuthUser(u.user_id, self._req_api_key)
 
            if not auth_u.is_ip_allowed(ip_addr):
 
            if not AuthUser.check_ip_allowed(auth_u, ip_addr):
 
                return jsonrpc_error(retid=self._req_id,
 
                        message='request from IP:%s not allowed' % (ip_addr,))
 
            else:
 
                log.info('Access for IP:%s allowed' % (ip_addr,))
 

	
 
        except Exception, e:
 
            return jsonrpc_error(retid=self._req_id,
 
                                 message='Invalid API key')
 

	
 
        self._error = None
 
        try:
 
            self._func = self._find_method()
 
        except AttributeError, e:
 
            return jsonrpc_error(retid=self._req_id,
 
                                 message=str(e))
 

	
 
        # now that we have a method, add self._req_params to
 
        # self.kargs and dispatch control to WGIController
 
        argspec = inspect.getargspec(self._func)
 
        arglist = argspec[0][1:]
 
        defaults = map(type, argspec[3] or [])
 
        default_empty = types.NotImplementedType
 

	
 
        # kw arguments required by this method
 
        func_kwargs = dict(izip_longest(reversed(arglist), reversed(defaults),
 
                                        fillvalue=default_empty))
 

	
 
        # this is little trick to inject logged in user for
 
        # perms decorators to work they expect the controller class to have
 
        # authuser attribute set
 
        self.authuser = auth_u
 

	
 
        # This attribute will need to be first param of a method that uses
 
        # api_key, which is translated to instance of user at that name
 
        USER_SESSION_ATTR = 'apiuser'
 

	
 
        if USER_SESSION_ATTR not in arglist:
 
            return jsonrpc_error(
 
                retid=self._req_id,
 
                message='This method [%s] does not support '
 
                         'authentication (missing %s param)' % (
 
                                    self._func.__name__, USER_SESSION_ATTR)
 
            )
 

	
 
        # get our arglist and check if we provided them as args
 
        for arg, default in func_kwargs.iteritems():
 
            if arg == USER_SESSION_ATTR:
 
                # USER_SESSION_ATTR is something translated from API key and
 
                # this is checked before so we don't need validate it
 
                continue
 

	
 
            # skip the required param check if it's default value is
 
            # NotImplementedType (default_empty)
 
            if default == default_empty and arg not in self._request_params:
 
                return jsonrpc_error(
 
                    retid=self._req_id,
 
                    message=(
 
                        'Missing non optional `%s` arg in JSON DATA' % arg
 
                    )
 
                )
 

	
 
        self._rpc_args = {USER_SESSION_ATTR: u}
 

	
 
        self._rpc_args.update(self._request_params)
 

	
 
        self._rpc_args['action'] = self._req_method
 
        self._rpc_args['environ'] = environ
 
        self._rpc_args['start_response'] = start_response
 

	
 
        status = []
 
        headers = []
 
        exc_info = []
 

	
 
        def change_content(new_status, new_headers, new_exc_info=None):
 
            status.append(new_status)
 
            headers.extend(new_headers)
 
            exc_info.append(new_exc_info)
 

	
 
        output = WSGIController.__call__(self, environ, change_content)
 
        output = list(output)
 
        headers.append(('Content-Length', str(len(output[0]))))
 
        replace_header(headers, 'Content-Type', 'application/json')
 
        start_response(status[0], headers, exc_info[0])
 
        log.info('IP: %s Request to %s time: %.3fs' % (
 
            self._get_ip_addr(environ),
 
            safe_unicode(_get_access_path(environ)), time.time() - start)
 
        )
 
        return output
 

	
 
    def _dispatch_call(self):
 
        """
 
        Implement dispatch interface specified by WSGIController
 
        """
 
        raw_response = ''
 
        try:
 
            raw_response = self._inspect_call(self._func)
kallithea/controllers/login.py
Show inline comments
 
@@ -16,193 +16,193 @@ kallithea.controllers.login
 
~~~~~~~~~~~~~~~~~~~~~~~~~~~
 

	
 
Login controller for Kallithea
 

	
 
This file was forked by the Kallithea project in July 2014.
 
Original author and date, and relevant copyright and licensing information is below:
 
:created_on: Apr 22, 2010
 
:author: marcink
 
:copyright: (c) 2013 RhodeCode GmbH, and others.
 
:license: GPLv3, see LICENSE.md for more details.
 
"""
 

	
 

	
 
import logging
 
import formencode
 
import datetime
 
import urlparse
 

	
 
from formencode import htmlfill
 
from webob.exc import HTTPFound
 
from pylons.i18n.translation import _
 
from pylons.controllers.util import redirect
 
from pylons import request, session, tmpl_context as c, url
 

	
 
import kallithea.lib.helpers as h
 
from kallithea.lib.auth import AuthUser, HasPermissionAnyDecorator
 
from kallithea.lib.auth_modules import importplugin
 
from kallithea.lib.base import BaseController, render
 
from kallithea.lib.exceptions import UserCreationError
 
from kallithea.lib.utils2 import safe_str
 
from kallithea.model.db import User, Setting
 
from kallithea.model.forms import LoginForm, RegisterForm, PasswordResetForm
 
from kallithea.model.user import UserModel
 
from kallithea.model.meta import Session
 

	
 

	
 
log = logging.getLogger(__name__)
 

	
 

	
 
class LoginController(BaseController):
 

	
 
    def __before__(self):
 
        super(LoginController, self).__before__()
 

	
 
    def _store_user_in_session(self, username, remember=False):
 
        user = User.get_by_username(username, case_insensitive=True)
 
        auth_user = AuthUser(user.user_id)
 
        auth_user.set_authenticated()
 
        cs = auth_user.get_cookie_store()
 
        session['authuser'] = cs
 
        user.update_lastlogin()
 
        Session().commit()
 

	
 
        # If they want to be remembered, update the cookie
 
        if remember:
 
            _year = (datetime.datetime.now() +
 
                     datetime.timedelta(seconds=60 * 60 * 24 * 365))
 
            session._set_cookie_expires(_year)
 

	
 
        session.save()
 

	
 
        log.info('user %s is now authenticated and stored in '
 
                 'session, session attrs %s' % (username, cs))
 

	
 
        # dumps session attrs back to cookie
 
        session._update_cookie_out()
 

	
 
    def _validate_came_from(self, came_from):
 
        """Return True if came_from is valid and can and should be used"""
 
        if not came_from:
 
            return False
 

	
 
        parsed = urlparse.urlparse(came_from)
 
        server_parsed = urlparse.urlparse(url.current())
 
        allowed_schemes = ['http', 'https']
 
        if parsed.scheme and parsed.scheme not in allowed_schemes:
 
            log.error('Suspicious URL scheme detected %s for url %s' %
 
                     (parsed.scheme, parsed))
 
            return False
 
        if server_parsed.netloc != parsed.netloc:
 
            log.error('Suspicious NETLOC detected %s for url %s server url '
 
                      'is: %s' % (parsed.netloc, parsed, server_parsed))
 
            return False
 
        return True
 

	
 
    def _redirect_to_origin(self, origin):
 
        '''redirect to the original page, preserving any get arguments given'''
 
        request.GET.pop('came_from', None)
 
        raise HTTPFound(location=url(origin, **request.GET))
 

	
 
    def index(self):
 
        c.came_from = safe_str(request.GET.get('came_from', ''))
 
        if not self._validate_came_from(c.came_from):
 
            c.came_from = url('home')
 

	
 
        not_default = self.authuser.username != User.DEFAULT_USER
 
        ip_allowed = self.authuser.is_ip_allowed(self.ip_addr)
 
        ip_allowed = AuthUser.check_ip_allowed(self.authuser, self.ip_addr)
 

	
 
        # redirect if already logged in
 
        if self.authuser.is_authenticated and not_default and ip_allowed:
 
            return self._redirect_to_origin(c.came_from)
 

	
 
        if request.POST:
 
            # import Login Form validator class
 
            login_form = LoginForm()
 
            try:
 
                session.invalidate()
 
                c.form_result = login_form.to_python(dict(request.POST))
 
                # form checks for username/password, now we're authenticated
 
                self._store_user_in_session(
 
                                        username=c.form_result['username'],
 
                                        remember=c.form_result['remember'])
 
                return self._redirect_to_origin(c.came_from)
 

	
 
            except formencode.Invalid, errors:
 
                defaults = errors.value
 
                # remove password from filling in form again
 
                del defaults['password']
 
                return htmlfill.render(
 
                    render('/login.html'),
 
                    defaults=errors.value,
 
                    errors=errors.error_dict or {},
 
                    prefix_error=False,
 
                    encoding="UTF-8",
 
                    force_defaults=False)
 
            except UserCreationError, e:
 
                # container auth or other auth functions that create users on
 
                # the fly can throw this exception signaling that there's issue
 
                # with user creation, explanation should be provided in
 
                # Exception itself
 
                h.flash(e, 'error')
 

	
 
        # check if we use container plugin, and try to login using it.
 
        auth_plugins = Setting.get_auth_plugins()
 
        if any((importplugin(name).is_container_auth for name in auth_plugins)):
 
            from kallithea.lib import auth_modules
 
            try:
 
                auth_info = auth_modules.authenticate('', '', request.environ)
 
            except UserCreationError, e:
 
                log.error(e)
 
                h.flash(e, 'error')
 
                # render login, with flash message about limit
 
                return render('/login.html')
 

	
 
            if auth_info:
 
                self._store_user_in_session(auth_info.get('username'))
 
                return self._redirect_to_origin(c.came_from)
 

	
 
        return render('/login.html')
 

	
 
    @HasPermissionAnyDecorator('hg.admin', 'hg.register.auto_activate',
 
                               'hg.register.manual_activate')
 
    def register(self):
 
        c.auto_active = 'hg.register.auto_activate' in User.get_default_user()\
 
            .AuthUser.permissions['global']
 

	
 
        settings = Setting.get_app_settings()
 
        captcha_private_key = settings.get('captcha_private_key')
 
        c.captcha_active = bool(captcha_private_key)
 
        c.captcha_public_key = settings.get('captcha_public_key')
 

	
 
        if request.POST:
 
            register_form = RegisterForm()()
 
            try:
 
                form_result = register_form.to_python(dict(request.POST))
 
                form_result['active'] = c.auto_active
 

	
 
                if c.captcha_active:
 
                    from kallithea.lib.recaptcha import submit
 
                    response = submit(request.POST.get('recaptcha_challenge_field'),
 
                                      request.POST.get('recaptcha_response_field'),
 
                                      private_key=captcha_private_key,
 
                                      remoteip=self.ip_addr)
 
                    if c.captcha_active and not response.is_valid:
 
                        _value = form_result
 
                        _msg = _('Bad captcha')
 
                        error_dict = {'recaptcha_field': _msg}
 
                        raise formencode.Invalid(_msg, _value, None,
 
                                                 error_dict=error_dict)
 

	
 
                UserModel().create_registration(form_result)
 
                h.flash(_('You have successfully registered into Kallithea'),
 
                        category='success')
 
                Session().commit()
 
                return redirect(url('login_home'))
 

	
 
            except formencode.Invalid, errors:
 
                return htmlfill.render(
 
                    render('/register.html'),
 
                    defaults=errors.value,
 
                    errors=errors.error_dict or {},
 
                    prefix_error=False,
 
                    encoding="UTF-8",
kallithea/lib/auth.py
Show inline comments
 
@@ -515,328 +515,322 @@ class AuthUser(object):
 
        if self.user_id is not None and self.user_id != self.anonymous_user.user_id:
 
            log.debug('Auth User lookup by USER ID %s' % self.user_id)
 
            is_user_loaded = user_model.fill_data(self, user_id=self.user_id)
 

	
 
        # try go get user by API key
 
        elif self._api_key and self._api_key != self.anonymous_user.api_key:
 
            log.debug('Auth User lookup by API key %s' % self._api_key)
 
            is_user_loaded = user_model.fill_data(self, api_key=self._api_key)
 

	
 
        # lookup by username
 
        elif self.username:
 
            log.debug('Auth User lookup by USER NAME %s' % self.username)
 
            is_user_loaded = user_model.fill_data(self, username=self.username)
 
        else:
 
            log.debug('No data in %s that could been used to log in' % self)
 

	
 
        if not is_user_loaded:
 
            # if we cannot authenticate user try anonymous
 
            if self.anonymous_user.active:
 
                user_model.fill_data(self, user_id=self.anonymous_user.user_id)
 
                # then we set this user is logged in
 
                self.is_authenticated = True
 
            else:
 
                self.user_id = None
 
                self.username = None
 
                self.is_authenticated = False
 

	
 
        if not self.username:
 
            self.username = 'None'
 

	
 
        log.debug('Auth User is now %s' % self)
 

	
 
    def __get_perms(self, user, explicit=True, algo='higherwin', cache=False):
 
        """
 
        Fills user permission attribute with permissions taken from database
 
        works for permissions given for repositories, and for permissions that
 
        are granted to groups
 

	
 
        :param user: `AuthUser` instance
 
        :param explicit: In case there are permissions both for user and a group
 
            that user is part of, explicit flag will define if user will
 
            explicitly override permissions from group, if it's False it will
 
            make decision based on the algo
 
        :param algo: algorithm to decide what permission should be choose if
 
            it's multiple defined, eg user in two different groups. It also
 
            decides if explicit flag is turned off how to specify the permission
 
            for case when user is in a group + have defined separate permission
 
        """
 
        user_id = user.user_id
 
        user_is_admin = user.is_admin
 
        user_inherit_default_permissions = user.inherit_default_permissions
 

	
 
        log.debug('Getting PERMISSION tree')
 
        compute = conditional_cache('short_term', 'cache_desc',
 
                                    condition=cache, func=_cached_perms_data)
 
        return compute(user_id, user_is_admin,
 
                       user_inherit_default_permissions, explicit, algo)
 

	
 
    def get_api_keys(self):
 
        api_keys = [self.api_key]
 
        for api_key in UserApiKeys.query()\
 
                .filter(UserApiKeys.user_id == self.user_id)\
 
                .filter(or_(UserApiKeys.expires == -1,
 
                            UserApiKeys.expires >= time.time())).all():
 
            api_keys.append(api_key.api_key)
 

	
 
        return api_keys
 

	
 
    @property
 
    def is_admin(self):
 
        return self.admin
 

	
 
    @property
 
    def repositories_admin(self):
 
        """
 
        Returns list of repositories you're an admin of
 
        """
 
        return [x[0] for x in self.permissions['repositories'].iteritems()
 
                if x[1] == 'repository.admin']
 

	
 
    @property
 
    def repository_groups_admin(self):
 
        """
 
        Returns list of repository groups you're an admin of
 
        """
 
        return [x[0] for x in self.permissions['repositories_groups'].iteritems()
 
                if x[1] == 'group.admin']
 

	
 
    @property
 
    def user_groups_admin(self):
 
        """
 
        Returns list of user groups you're an admin of
 
        """
 
        return [x[0] for x in self.permissions['user_groups'].iteritems()
 
                if x[1] == 'usergroup.admin']
 

	
 
    def is_ip_allowed(self, ip_addr):
 
        """
 
        Determine if `ip_addr` is on the list of allowed IP addresses
 
        for this user.
 
    @staticmethod
 
    def check_ip_allowed(user, ip_addr):
 
        """
 
        inherit = self.inherit_default_permissions
 
        return AuthUser.check_ip_allowed(self.user_id, ip_addr,
 
                                         inherit_from_default=inherit)
 

	
 
    @classmethod
 
    def check_ip_allowed(cls, user_id, ip_addr, inherit_from_default):
 
        allowed_ips = AuthUser.get_allowed_ips(user_id, cache=True,
 
                        inherit_from_default=inherit_from_default)
 
        Check if the given IP address (a `str`) is allowed for the given
 
        user (an `AuthUser` or `db.User`).
 
        """
 
        allowed_ips = AuthUser.get_allowed_ips(user.user_id, cache=True,
 
            inherit_from_default=user.inherit_default_permissions)
 
        if check_ip_access(source_ip=ip_addr, allowed_ips=allowed_ips):
 
            log.debug('IP:%s is in range of %s' % (ip_addr, allowed_ips))
 
            return True
 
        else:
 
            log.info('Access for IP:%s forbidden, '
 
                     'not in %s' % (ip_addr, allowed_ips))
 
            return False
 

	
 
    def __repr__(self):
 
        return "<AuthUser('id:%s[%s] auth:%s')>"\
 
            % (self.user_id, self.username, self.is_authenticated)
 

	
 
    def set_authenticated(self, authenticated=True):
 
        if self.user_id != self.anonymous_user.user_id:
 
            self.is_authenticated = authenticated
 

	
 
    def get_cookie_store(self):
 
        return {'username': self.username,
 
                'user_id': self.user_id,
 
                'is_authenticated': self.is_authenticated}
 

	
 
    @classmethod
 
    def from_cookie_store(cls, cookie_store):
 
        """
 
        Creates AuthUser from a cookie store
 

	
 
        :param cls:
 
        :param cookie_store:
 
        """
 
        user_id = cookie_store.get('user_id')
 
        username = cookie_store.get('username')
 
        api_key = cookie_store.get('api_key')
 
        return AuthUser(user_id, api_key, username)
 

	
 
    @classmethod
 
    def get_allowed_ips(cls, user_id, cache=False, inherit_from_default=False):
 
        _set = set()
 

	
 
        if inherit_from_default:
 
            default_ips = UserIpMap.query().filter(UserIpMap.user ==
 
                                            User.get_default_user(cache=True))
 
            if cache:
 
                default_ips = default_ips.options(FromCache("sql_cache_short",
 
                                                  "get_user_ips_default"))
 

	
 
            # populate from default user
 
            for ip in default_ips:
 
                try:
 
                    _set.add(ip.ip_addr)
 
                except ObjectDeletedError:
 
                    # since we use heavy caching sometimes it happens that we get
 
                    # deleted objects here, we just skip them
 
                    pass
 

	
 
        user_ips = UserIpMap.query().filter(UserIpMap.user_id == user_id)
 
        if cache:
 
            user_ips = user_ips.options(FromCache("sql_cache_short",
 
                                                  "get_user_ips_%s" % user_id))
 

	
 
        for ip in user_ips:
 
            try:
 
                _set.add(ip.ip_addr)
 
            except ObjectDeletedError:
 
                # since we use heavy caching sometimes it happens that we get
 
                # deleted objects here, we just skip them
 
                pass
 
        return _set or set(['0.0.0.0/0', '::/0'])
 

	
 

	
 
def set_available_permissions(config):
 
    """
 
    This function will propagate pylons globals with all available defined
 
    permission given in db. We don't want to check each time from db for new
 
    permissions since adding a new permission also requires application restart
 
    ie. to decorate new views with the newly created permission
 

	
 
    :param config: current pylons config instance
 

	
 
    """
 
    log.info('getting information about all available permissions')
 
    try:
 
        sa = meta.Session
 
        all_perms = sa.query(Permission).all()
 
        config['available_permissions'] = [x.permission_name for x in all_perms]
 
    finally:
 
        meta.Session.remove()
 

	
 

	
 
#==============================================================================
 
# CHECK DECORATORS
 
#==============================================================================
 

	
 
def redirect_to_login(message=None):
 
    from kallithea.lib import helpers as h
 
    p = url.current()
 
    if message:
 
        h.flash(h.literal(message), category='warning')
 
    log.debug('Redirecting to login page, origin: %s' % p)
 
    return redirect(url('login_home', came_from=p, **request.GET))
 

	
 
class LoginRequired(object):
 
    """
 
    Must be logged in to execute this function else
 
    redirect to login page
 

	
 
    :param api_access: if enabled this checks only for valid auth token
 
        and grants access based on valid token
 
    """
 

	
 
    def __init__(self, api_access=False):
 
        self.api_access = api_access
 

	
 
    def __call__(self, func):
 
        return decorator(self.__wrapper, func)
 

	
 
    def __wrapper(self, func, *fargs, **fkwargs):
 
        controller = fargs[0]
 
        user = controller.authuser
 
        loc = "%s:%s" % (controller.__class__.__name__, func.__name__)
 
        log.debug('Checking access for user %s @ %s' % (user, loc))
 

	
 
        # check if our IP is allowed
 
        if not user.is_ip_allowed(controller.ip_addr):
 
        if not AuthUser.check_ip_allowed(user, controller.ip_addr):
 
            return redirect_to_login(_('IP %s not allowed') % controller.ip_addr)
 

	
 
        # check if we used an API key and it's a valid one
 
        api_key = request.GET.get('api_key')
 
        if api_key is not None:
 
            # explicit controller is enabled or API is in our whitelist
 
            if self.api_access or allowed_api_access(loc, api_key=api_key):
 
                if api_key in user.api_keys:
 
                    log.info('user %s authenticated with API key ****%s @ %s'
 
                             % (user, api_key[-4:], loc))
 
                    return func(*fargs, **fkwargs)
 
                else:
 
                    log.warning('API key ****%s is NOT valid' % api_key[-4:])
 
                    return redirect_to_login(_('Invalid API key'))
 
            else:
 
                # controller does not allow API access
 
                log.warning('API access to %s is not allowed' % loc)
 
                return abort(403)
 

	
 
        # CSRF protection - POSTs with session auth must contain correct token
 
        if request.POST and user.is_authenticated:
 
            token = request.POST.get(secure_form.token_key)
 
            if not token or token != secure_form.authentication_token():
 
                log.error('CSRF check failed')
 
                return abort(403)
 

	
 
        # regular user authentication
 
        if user.is_authenticated:
 
            log.info('user %s authenticated with regular auth @ %s' % (user, loc))
 
            return func(*fargs, **fkwargs)
 
        else:
 
            log.warning('user %s NOT authenticated with regular auth @ %s' % (user, loc))
 
            return redirect_to_login()
 

	
 
class NotAnonymous(object):
 
    """
 
    Must be logged in to execute this function else
 
    redirect to login page"""
 

	
 
    def __call__(self, func):
 
        return decorator(self.__wrapper, func)
 

	
 
    def __wrapper(self, func, *fargs, **fkwargs):
 
        cls = fargs[0]
 
        self.user = cls.authuser
 

	
 
        log.debug('Checking if user is not anonymous @%s' % cls)
 

	
 
        anonymous = self.user.username == User.DEFAULT_USER
 

	
 
        if anonymous:
 
            return redirect_to_login(_('You need to be a registered user to '
 
                    'perform this action'))
 
        else:
 
            return func(*fargs, **fkwargs)
 

	
 

	
 
class PermsDecorator(object):
 
    """Base class for controller decorators"""
 

	
 
    def __init__(self, *required_perms):
 
        self.required_perms = set(required_perms)
 
        self.user_perms = None
 

	
 
    def __call__(self, func):
 
        return decorator(self.__wrapper, func)
 

	
 
    def __wrapper(self, func, *fargs, **fkwargs):
 
        cls = fargs[0]
 
        self.user = cls.authuser
 
        self.user_perms = self.user.permissions
 
        log.debug('checking %s permissions %s for %s %s',
 
           self.__class__.__name__, self.required_perms, cls, self.user)
 

	
 
        if self.check_permissions():
 
            log.debug('Permission granted for %s %s' % (cls, self.user))
 
            return func(*fargs, **fkwargs)
 

	
 
        else:
 
            log.debug('Permission denied for %s %s' % (cls, self.user))
 
            anonymous = self.user.username == User.DEFAULT_USER
 

	
 
            if anonymous:
 
                return redirect_to_login(_('You need to be signed in to view this page'))
 
            else:
 
                # redirect with forbidden ret code
 
                return abort(403)
 

	
 
    def check_permissions(self):
 
        """Dummy function for overriding"""
 
        raise Exception('You have to write this function in child class')
 

	
 

	
 
class HasPermissionAllDecorator(PermsDecorator):
 
    """
 
    Checks for access permission for all given predicates. All of them
kallithea/lib/base.py
Show inline comments
 
@@ -93,195 +93,193 @@ def _get_ip_addr(environ):
 

	
 
    ip = environ.get(def_key, '0.0.0.0')
 
    return _filter_proxy(ip)
 

	
 

	
 
def _get_access_path(environ):
 
    path = environ.get('PATH_INFO')
 
    org_req = environ.get('pylons.original_request')
 
    if org_req:
 
        path = org_req.environ.get('PATH_INFO')
 
    return path
 

	
 

	
 
class BasicAuth(paste.auth.basic.AuthBasicAuthenticator):
 

	
 
    def __init__(self, realm, authfunc, auth_http_code=None):
 
        self.realm = realm
 
        self.authfunc = authfunc
 
        self._rc_auth_http_code = auth_http_code
 

	
 
    def build_authentication(self):
 
        head = paste.httpheaders.WWW_AUTHENTICATE.tuples('Basic realm="%s"' % self.realm)
 
        if self._rc_auth_http_code and self._rc_auth_http_code == '403':
 
            # return 403 if alternative http return code is specified in
 
            # Kallithea config
 
            return paste.httpexceptions.HTTPForbidden(headers=head)
 
        return paste.httpexceptions.HTTPUnauthorized(headers=head)
 

	
 
    def authenticate(self, environ):
 
        authorization = paste.httpheaders.AUTHORIZATION(environ)
 
        if not authorization:
 
            return self.build_authentication()
 
        (authmeth, auth) = authorization.split(' ', 1)
 
        if 'basic' != authmeth.lower():
 
            return self.build_authentication()
 
        auth = auth.strip().decode('base64')
 
        _parts = auth.split(':', 1)
 
        if len(_parts) == 2:
 
            username, password = _parts
 
            if self.authfunc(username, password, environ):
 
                return username
 
        return self.build_authentication()
 

	
 
    __call__ = authenticate
 

	
 

	
 
class BaseVCSController(object):
 

	
 
    def __init__(self, application, config):
 
        self.application = application
 
        self.config = config
 
        # base path of repo locations
 
        self.basepath = self.config['base_path']
 
        #authenticate this VCS request using authfunc
 
        self.authenticate = BasicAuth('', auth_modules.authenticate,
 
                                      config.get('auth_ret_code'))
 
        self.ip_addr = '0.0.0.0'
 

	
 
    def _handle_request(self, environ, start_response):
 
        raise NotImplementedError()
 

	
 
    def _get_by_id(self, repo_name):
 
        """
 
        Gets a special pattern _<ID> from clone url and tries to replace it
 
        with a repository_name for support of _<ID> permanent URLs
 

	
 
        :param repo_name:
 
        """
 

	
 
        data = repo_name.split('/')
 
        if len(data) >= 2:
 
            from kallithea.lib.utils import get_repo_by_id
 
            by_id_match = get_repo_by_id(repo_name)
 
            if by_id_match:
 
                data[1] = by_id_match
 

	
 
        return '/'.join(data)
 

	
 
    def _invalidate_cache(self, repo_name):
 
        """
 
        Sets cache for this repository for invalidation on next access
 

	
 
        :param repo_name: full repo name, also a cache key
 
        """
 
        ScmModel().mark_for_invalidation(repo_name)
 

	
 
    def _check_permission(self, action, user, repo_name, ip_addr=None):
 
        """
 
        Checks permissions using action (push/pull) user and repository
 
        name
 

	
 
        :param action: push or pull action
 
        :param user: `User` instance
 
        :param repo_name: repository name
 
        """
 
        # check IP
 
        inherit = user.inherit_default_permissions
 
        ip_allowed = AuthUser.check_ip_allowed(user.user_id, ip_addr,
 
                                               inherit_from_default=inherit)
 
        ip_allowed = AuthUser.check_ip_allowed(user, ip_addr)
 
        if ip_allowed:
 
            log.info('Access for IP:%s allowed' % (ip_addr,))
 
        else:
 
            return False
 

	
 
        if action == 'push':
 
            if not HasPermissionAnyMiddleware('repository.write',
 
                                              'repository.admin')(user,
 
                                                                  repo_name):
 
                return False
 

	
 
        else:
 
            #any other action need at least read permission
 
            if not HasPermissionAnyMiddleware('repository.read',
 
                                              'repository.write',
 
                                              'repository.admin')(user,
 
                                                                  repo_name):
 
                return False
 

	
 
        return True
 

	
 
    def _get_ip_addr(self, environ):
 
        return _get_ip_addr(environ)
 

	
 
    def _check_ssl(self, environ):
 
        """
 
        Checks the SSL check flag and returns False if SSL is not present
 
        and required True otherwise
 
        """
 
        #check if we have SSL required  ! if not it's a bad request !
 
        if str2bool(Ui.get_by_key('push_ssl').ui_value):
 
            org_proto = environ.get('wsgi._org_proto', environ['wsgi.url_scheme'])
 
            if org_proto != 'https':
 
                log.debug('proto is %s and SSL is required BAD REQUEST !'
 
                          % org_proto)
 
                return False
 
        return True
 

	
 
    def _check_locking_state(self, environ, action, repo, user_id):
 
        """
 
        Checks locking on this repository, if locking is enabled and lock is
 
        present returns a tuple of make_lock, locked, locked_by.
 
        make_lock can have 3 states None (do nothing) True, make lock
 
        False release lock, This value is later propagated to hooks, which
 
        do the locking. Think about this as signals passed to hooks what to do.
 

	
 
        """
 
        locked = False  # defines that locked error should be thrown to user
 
        make_lock = None
 
        repo = Repository.get_by_repo_name(repo)
 
        user = User.get(user_id)
 

	
 
        # this is kind of hacky, but due to how mercurial handles client-server
 
        # server see all operation on changeset; bookmarks, phases and
 
        # obsolescence marker in different transaction, we don't want to check
 
        # locking on those
 
        obsolete_call = environ['QUERY_STRING'] in ['cmd=listkeys',]
 
        locked_by = repo.locked
 
        if repo and repo.enable_locking and not obsolete_call:
 
            if action == 'push':
 
                #check if it's already locked !, if it is compare users
 
                user_id, _date = repo.locked
 
                if user.user_id == user_id:
 
                    log.debug('Got push from user %s, now unlocking' % (user))
 
                    # unlock if we have push from user who locked
 
                    make_lock = False
 
                else:
 
                    # we're not the same user who locked, ban with 423 !
 
                    locked = True
 
            if action == 'pull':
 
                if repo.locked[0] and repo.locked[1]:
 
                    locked = True
 
                else:
 
                    log.debug('Setting lock on repo %s by %s' % (repo, user))
 
                    make_lock = True
 

	
 
        else:
 
            log.debug('Repository %s do not have locking enabled' % (repo))
 
        log.debug('FINAL locking values make_lock:%s,locked:%s,locked_by:%s'
 
                  % (make_lock, locked, locked_by))
 
        return make_lock, locked, locked_by
 

	
 
    def __call__(self, environ, start_response):
 
        start = time.time()
 
        try:
 
            return self._handle_request(environ, start_response)
 
        finally:
 
            log = logging.getLogger('kallithea.' + self.__class__.__name__)
 
            log.debug('Request time: %.3fs' % (time.time() - start))
 
            meta.Session.remove()
 

	
 

	
 
class BaseController(WSGIController):
 

	
 
    def __before__(self):
 
        """
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