# -*- coding: utf-8 -*- # Copyright (C) 2010-2016 RhodeCode GmbH # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License, version 3 # (only), as published by the Free Software Foundation. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see . # # This program is dual-licensed. If you wish to learn more about the # RhodeCode Enterprise Edition, including its added features, Support services, # and proprietary license terms, please see https://rhodecode.com/licenses/ """ The base Controller API Provides the BaseController class for subclassing. And usage in different controllers """ import logging import socket import ipaddress from paste.auth.basic import AuthBasicAuthenticator from paste.httpexceptions import HTTPUnauthorized, HTTPForbidden, get_exception from paste.httpheaders import WWW_AUTHENTICATE, AUTHORIZATION from pylons import config, tmpl_context as c, request, session, url from pylons.controllers import WSGIController from pylons.controllers.util import redirect from pylons.i18n import translation # marcink: don't remove this import from pylons.templating import render_mako as render # noqa from pylons.i18n.translation import _ from webob.exc import HTTPFound import rhodecode from rhodecode.authentication.base import VCS_TYPE from rhodecode.lib import auth, utils2 from rhodecode.lib import helpers as h from rhodecode.lib.auth import AuthUser, CookieStoreWrapper from rhodecode.lib.exceptions import UserCreationError from rhodecode.lib.utils import ( get_repo_slug, set_rhodecode_config, password_changed, get_enabled_hook_classes) from rhodecode.lib.utils2 import ( str2bool, safe_unicode, AttributeDict, safe_int, md5, aslist) from rhodecode.lib.vcs.exceptions import RepositoryRequirementError from rhodecode.model import meta from rhodecode.model.db import Repository, User from rhodecode.model.notification import NotificationModel from rhodecode.model.scm import ScmModel from rhodecode.model.settings import VcsSettingsModel, SettingsModel log = logging.getLogger(__name__) def _filter_proxy(ip): """ Passed in IP addresses in HEADERS can be in a special format of multiple ips. Those comma separated IPs are passed from various proxies in the chain of request processing. The left-most being the original client. We only care about the first IP which came from the org. client. :param ip: ip string from headers """ if ',' in ip: _ips = ip.split(',') _first_ip = _ips[0].strip() log.debug('Got multiple IPs %s, using %s', ','.join(_ips), _first_ip) return _first_ip return ip def _filter_port(ip): """ Removes a port from ip, there are 4 main cases to handle here. - ipv4 eg. 127.0.0.1 - ipv6 eg. ::1 - ipv4+port eg. 127.0.0.1:8080 - ipv6+port eg. [::1]:8080 :param ip: """ def is_ipv6(ip_addr): if hasattr(socket, 'inet_pton'): try: socket.inet_pton(socket.AF_INET6, ip_addr) except socket.error: return False else: # fallback to ipaddress try: ipaddress.IPv6Address(ip_addr) except Exception: return False return True if ':' not in ip: # must be ipv4 pure ip return ip if '[' in ip and ']' in ip: # ipv6 with port return ip.split(']')[0][1:].lower() # must be ipv6 or ipv4 with port if is_ipv6(ip): return ip else: ip, _port = ip.split(':')[:2] # means ipv4+port return ip def get_ip_addr(environ): proxy_key = 'HTTP_X_REAL_IP' proxy_key2 = 'HTTP_X_FORWARDED_FOR' def_key = 'REMOTE_ADDR' _filters = lambda x: _filter_port(_filter_proxy(x)) ip = environ.get(proxy_key) if ip: return _filters(ip) ip = environ.get(proxy_key2) if ip: return _filters(ip) ip = environ.get(def_key, '0.0.0.0') return _filters(ip) def get_server_ip_addr(environ, log_errors=True): hostname = environ.get('SERVER_NAME') try: return socket.gethostbyname(hostname) except Exception as e: if log_errors: # in some cases this lookup is not possible, and we don't want to # make it an exception in logs log.exception('Could not retrieve server ip address: %s', e) return hostname def get_server_port(environ): return environ.get('SERVER_PORT') 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 def vcs_operation_context( environ, repo_name, username, action, scm, check_locking=True): """ Generate the context for a vcs operation, e.g. push or pull. This context is passed over the layers so that hooks triggered by the vcs operation know details like the user, the user's IP address etc. :param check_locking: Allows to switch of the computation of the locking data. This serves mainly the need of the simplevcs middleware to be able to disable this for certain operations. """ # Tri-state value: False: unlock, None: nothing, True: lock make_lock = None locked_by = [None, None, None] is_anonymous = username == User.DEFAULT_USER if not is_anonymous and check_locking: log.debug('Checking locking on repository "%s"', repo_name) user = User.get_by_username(username) repo = Repository.get_by_repo_name(repo_name) make_lock, __, locked_by = repo.get_locking_state( action, user.user_id) settings_model = VcsSettingsModel(repo=repo_name) ui_settings = settings_model.get_ui_settings() extras = { 'ip': get_ip_addr(environ), 'username': username, 'action': action, 'repository': repo_name, 'scm': scm, 'config': rhodecode.CONFIG['__file__'], 'make_lock': make_lock, 'locked_by': locked_by, 'server_url': utils2.get_server_url(environ), 'hooks': get_enabled_hook_classes(ui_settings), } return extras class BasicAuth(AuthBasicAuthenticator): def __init__(self, realm, authfunc, auth_http_code=None, initial_call_detection=False): self.realm = realm self.initial_call = initial_call_detection self.authfunc = authfunc self._rc_auth_http_code = auth_http_code def _get_response_from_code(self, http_code): try: return get_exception(safe_int(http_code)) except Exception: log.exception('Failed to fetch response for code %s' % http_code) return HTTPForbidden def build_authentication(self): head = WWW_AUTHENTICATE.tuples('Basic realm="%s"' % self.realm) if self._rc_auth_http_code and not self.initial_call: # return alternative HTTP code if alternative http return code # is specified in RhodeCode config, but ONLY if it's not the # FIRST call custom_response_klass = self._get_response_from_code( self._rc_auth_http_code) return custom_response_klass(headers=head) return HTTPUnauthorized(headers=head) def authenticate(self, environ): authorization = 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, VCS_TYPE): return username if username and password: # we mark that we actually executed authentication once, at # that point we can use the alternative auth code self.initial_call = False return self.build_authentication() __call__ = authenticate def attach_context_attributes(context): rc_config = SettingsModel().get_all_settings() context.rhodecode_version = rhodecode.__version__ context.rhodecode_edition = config.get('rhodecode.edition') # unique secret + version does not leak the version but keep consistency context.rhodecode_version_hash = md5( config.get('beaker.session.secret', '') + rhodecode.__version__)[:8] # Default language set for the incoming request context.language = translation.get_lang()[0] # Visual options context.visual = AttributeDict({}) # DB store context.visual.show_public_icon = str2bool( rc_config.get('rhodecode_show_public_icon')) context.visual.show_private_icon = str2bool( rc_config.get('rhodecode_show_private_icon')) context.visual.stylify_metatags = str2bool( rc_config.get('rhodecode_stylify_metatags')) context.visual.dashboard_items = safe_int( rc_config.get('rhodecode_dashboard_items', 100)) context.visual.admin_grid_items = safe_int( rc_config.get('rhodecode_admin_grid_items', 100)) context.visual.repository_fields = str2bool( rc_config.get('rhodecode_repository_fields')) context.visual.show_version = str2bool( rc_config.get('rhodecode_show_version')) context.visual.use_gravatar = str2bool( rc_config.get('rhodecode_use_gravatar')) context.visual.gravatar_url = rc_config.get('rhodecode_gravatar_url') context.visual.default_renderer = rc_config.get( 'rhodecode_markup_renderer', 'rst') context.visual.rhodecode_support_url = \ rc_config.get('rhodecode_support_url') or url('rhodecode_support') context.pre_code = rc_config.get('rhodecode_pre_code') context.post_code = rc_config.get('rhodecode_post_code') context.rhodecode_name = rc_config.get('rhodecode_title') context.default_encodings = aslist(config.get('default_encoding'), sep=',') # if we have specified default_encoding in the request, it has more # priority if request.GET.get('default_encoding'): context.default_encodings.insert(0, request.GET.get('default_encoding')) context.clone_uri_tmpl = rc_config.get('rhodecode_clone_uri_tmpl') # INI stored context.labs_active = str2bool( config.get('labs_settings_active', 'false')) context.visual.allow_repo_location_change = str2bool( config.get('allow_repo_location_change', True)) context.visual.allow_custom_hooks_settings = str2bool( config.get('allow_custom_hooks_settings', True)) context.debug_style = str2bool(config.get('debug_style', False)) context.rhodecode_instanceid = config.get('instance_id') # AppEnlight context.appenlight_enabled = str2bool(config.get('appenlight', 'false')) context.appenlight_api_public_key = config.get( 'appenlight.api_public_key', '') context.appenlight_server_url = config.get('appenlight.server_url', '') # END CONFIG VARS # TODO: This dosn't work when called from pylons compatibility tween. # Fix this and remove it from base controller. # context.repo_name = get_repo_slug(request) # can be empty context.csrf_token = auth.get_csrf_token() context.backends = rhodecode.BACKENDS.keys() context.backends.sort() context.unread_notifications = NotificationModel().get_unread_cnt_for_user( context.rhodecode_user.user_id) def get_auth_user(environ): ip_addr = get_ip_addr(environ) # make sure that we update permissions each time we call controller _auth_token = (request.GET.get('auth_token', '') or request.GET.get('api_key', '')) if _auth_token: # when using API_KEY we are sure user exists. auth_user = AuthUser(api_key=_auth_token, ip_addr=ip_addr) authenticated = False else: cookie_store = CookieStoreWrapper(session.get('rhodecode_user')) try: auth_user = AuthUser(user_id=cookie_store.get('user_id', None), ip_addr=ip_addr) except UserCreationError as e: h.flash(e, 'error') # 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. We then create a simple blank # AuthUser auth_user = AuthUser(ip_addr=ip_addr) if password_changed(auth_user, session): session.invalidate() cookie_store = CookieStoreWrapper( session.get('rhodecode_user')) auth_user = AuthUser(ip_addr=ip_addr) authenticated = cookie_store.get('is_authenticated') if not auth_user.is_authenticated and auth_user.is_user_object: # user is not authenticated and not empty auth_user.set_authenticated(authenticated) return auth_user class BaseController(WSGIController): def __before__(self): """ __before__ is called before controller methods and after __call__ """ # on each call propagate settings calls into global settings. set_rhodecode_config(config) attach_context_attributes(c) # TODO: Remove this when fixed in attach_context_attributes() c.repo_name = get_repo_slug(request) # can be empty self.cut_off_limit_diff = safe_int(config.get('cut_off_limit_diff')) self.cut_off_limit_file = safe_int(config.get('cut_off_limit_file')) self.sa = meta.Session self.scm_model = ScmModel(self.sa) default_lang = c.language user_lang = c.language try: user_obj = self._rhodecode_user.get_instance() if user_obj: user_lang = user_obj.user_data.get('language') except Exception: log.exception('Failed to fetch user language for user %s', self._rhodecode_user) if user_lang and user_lang != default_lang: log.debug('set language to %s for user %s', user_lang, self._rhodecode_user) translation.set_lang(user_lang) def _dispatch_redirect(self, with_url, environ, start_response): resp = HTTPFound(with_url) environ['SCRIPT_NAME'] = '' # handle prefix middleware environ['PATH_INFO'] = with_url return resp(environ, start_response) def __call__(self, environ, start_response): """Invoke the Controller""" # WSGIController.__call__ dispatches to the Controller method # the request is routed to. This routing information is # available in environ['pylons.routes_dict'] from rhodecode.lib import helpers as h # Provide the Pylons context to Pyramid's debugtoolbar if it asks if environ.get('debugtoolbar.wants_pylons_context', False): environ['debugtoolbar.pylons_context'] = c._current_obj() _route_name = '.'.join([environ['pylons.routes_dict']['controller'], environ['pylons.routes_dict']['action']]) self.rc_config = SettingsModel().get_all_settings() self.ip_addr = get_ip_addr(environ) # The rhodecode auth user is looked up and passed through the # environ by the pylons compatibility tween in pyramid. # So we can just grab it from there. auth_user = environ['rc_auth_user'] # set globals for auth user request.user = auth_user c.rhodecode_user = self._rhodecode_user = auth_user log.info('IP: %s User: %s accessed %s [%s]' % ( self.ip_addr, auth_user, safe_unicode(get_access_path(environ)), _route_name) ) # TODO: Maybe this should be move to pyramid to cover all views. # check user attributes for password change flag user_obj = auth_user.get_instance() if user_obj and user_obj.user_data.get('force_password_change'): h.flash('You are required to change your password', 'warning', ignore_duplicate=True) skip_user_check_urls = [ 'error.document', 'login.logout', 'login.index', 'admin/my_account.my_account_password', 'admin/my_account.my_account_password_update' ] if _route_name not in skip_user_check_urls: return self._dispatch_redirect( url('my_account_password'), environ, start_response) return WSGIController.__call__(self, environ, start_response) class BaseRepoController(BaseController): """ Base class for controllers responsible for loading all needed data for repository loaded items are c.rhodecode_repo: instance of scm repository c.rhodecode_db_repo: instance of db c.repository_requirements_missing: shows that repository specific data could not be displayed due to the missing requirements c.repository_pull_requests: show number of open pull requests """ def __before__(self): super(BaseRepoController, self).__before__() if c.repo_name: # extracted from routes db_repo = Repository.get_by_repo_name(c.repo_name) if not db_repo: return log.debug( 'Found repository in database %s with state `%s`', safe_unicode(db_repo), safe_unicode(db_repo.repo_state)) route = getattr(request.environ.get('routes.route'), 'name', '') # allow to delete repos that are somehow damages in filesystem if route in ['delete_repo']: return if db_repo.repo_state in [Repository.STATE_PENDING]: if route in ['repo_creating_home']: return check_url = url('repo_creating_home', repo_name=c.repo_name) return redirect(check_url) self.rhodecode_db_repo = db_repo missing_requirements = False try: self.rhodecode_repo = self.rhodecode_db_repo.scm_instance() except RepositoryRequirementError as e: missing_requirements = True self._handle_missing_requirements(e) if self.rhodecode_repo is None and not missing_requirements: log.error('%s this repository is present in database but it ' 'cannot be created as an scm instance', c.repo_name) h.flash(_( "The repository at %(repo_name)s cannot be located.") % {'repo_name': c.repo_name}, category='error', ignore_duplicate=True) redirect(url('home')) # update last change according to VCS data if not missing_requirements: commit = db_repo.get_commit( pre_load=["author", "date", "message", "parents"]) db_repo.update_commit_cache(commit) # Prepare context c.rhodecode_db_repo = db_repo c.rhodecode_repo = self.rhodecode_repo c.repository_requirements_missing = missing_requirements self._update_global_counters(self.scm_model, db_repo) def _update_global_counters(self, scm_model, db_repo): """ Base variables that are exposed to every page of repository """ c.repository_pull_requests = scm_model.get_pull_requests(db_repo) def _handle_missing_requirements(self, error): self.rhodecode_repo = None log.error( 'Requirements are missing for repository %s: %s', c.repo_name, error.message) summary_url = url('summary_home', repo_name=c.repo_name) statistics_url = url('edit_repo_statistics', repo_name=c.repo_name) settings_update_url = url('repo', repo_name=c.repo_name) path = request.path should_redirect = ( path not in (summary_url, settings_update_url) and '/settings' not in path or path == statistics_url ) if should_redirect: redirect(summary_url)