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base.py
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# -*- 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 <http://www.gnu.org/licenses/>.
#
# 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)