|
|
# -*- coding: utf-8 -*-
|
|
|
|
|
|
# Copyright (C) 2010-2020 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/
|
|
|
|
|
|
import gzip
|
|
|
import shutil
|
|
|
import logging
|
|
|
import tempfile
|
|
|
import urlparse
|
|
|
|
|
|
from webob.exc import HTTPNotFound
|
|
|
|
|
|
import rhodecode
|
|
|
from rhodecode.lib.middleware.appenlight import wrap_in_appenlight_if_enabled
|
|
|
from rhodecode.lib.middleware.simplegit import SimpleGit, GIT_PROTO_PAT
|
|
|
from rhodecode.lib.middleware.simplehg import SimpleHg
|
|
|
from rhodecode.lib.middleware.simplesvn import SimpleSvn
|
|
|
from rhodecode.model.settings import VcsSettingsModel
|
|
|
|
|
|
log = logging.getLogger(__name__)
|
|
|
|
|
|
VCS_TYPE_KEY = '_rc_vcs_type'
|
|
|
VCS_TYPE_SKIP = '_rc_vcs_skip'
|
|
|
|
|
|
|
|
|
def is_git(environ):
|
|
|
"""
|
|
|
Returns True if requests should be handled by GIT wsgi middleware
|
|
|
"""
|
|
|
is_git_path = GIT_PROTO_PAT.match(environ['PATH_INFO'])
|
|
|
log.debug(
|
|
|
'request path: `%s` detected as GIT PROTOCOL %s', environ['PATH_INFO'],
|
|
|
is_git_path is not None)
|
|
|
|
|
|
return is_git_path
|
|
|
|
|
|
|
|
|
def is_hg(environ):
|
|
|
"""
|
|
|
Returns True if requests target is mercurial server - header
|
|
|
``HTTP_ACCEPT`` of such request would start with ``application/mercurial``.
|
|
|
"""
|
|
|
is_hg_path = False
|
|
|
|
|
|
http_accept = environ.get('HTTP_ACCEPT')
|
|
|
|
|
|
if http_accept and http_accept.startswith('application/mercurial'):
|
|
|
query = urlparse.parse_qs(environ['QUERY_STRING'])
|
|
|
if 'cmd' in query:
|
|
|
is_hg_path = True
|
|
|
|
|
|
log.debug(
|
|
|
'request path: `%s` detected as HG PROTOCOL %s', environ['PATH_INFO'],
|
|
|
is_hg_path)
|
|
|
|
|
|
return is_hg_path
|
|
|
|
|
|
|
|
|
def is_svn(environ):
|
|
|
"""
|
|
|
Returns True if requests target is Subversion server
|
|
|
"""
|
|
|
|
|
|
http_dav = environ.get('HTTP_DAV', '')
|
|
|
magic_path_segment = rhodecode.CONFIG.get(
|
|
|
'rhodecode_subversion_magic_path', '/!svn')
|
|
|
is_svn_path = (
|
|
|
'subversion' in http_dav or
|
|
|
magic_path_segment in environ['PATH_INFO']
|
|
|
or environ['REQUEST_METHOD'] in ['PROPFIND', 'PROPPATCH']
|
|
|
)
|
|
|
log.debug(
|
|
|
'request path: `%s` detected as SVN PROTOCOL %s', environ['PATH_INFO'],
|
|
|
is_svn_path)
|
|
|
|
|
|
return is_svn_path
|
|
|
|
|
|
|
|
|
class GunzipMiddleware(object):
|
|
|
"""
|
|
|
WSGI middleware that unzips gzip-encoded requests before
|
|
|
passing on to the underlying application.
|
|
|
"""
|
|
|
|
|
|
def __init__(self, application):
|
|
|
self.app = application
|
|
|
|
|
|
def __call__(self, environ, start_response):
|
|
|
accepts_encoding_header = environ.get('HTTP_CONTENT_ENCODING', b'')
|
|
|
|
|
|
if b'gzip' in accepts_encoding_header:
|
|
|
log.debug('gzip detected, now running gunzip wrapper')
|
|
|
wsgi_input = environ['wsgi.input']
|
|
|
|
|
|
if not hasattr(environ['wsgi.input'], 'seek'):
|
|
|
# The gzip implementation in the standard library of Python 2.x
|
|
|
# requires the '.seek()' and '.tell()' methods to be available
|
|
|
# on the input stream. Read the data into a temporary file to
|
|
|
# work around this limitation.
|
|
|
|
|
|
wsgi_input = tempfile.SpooledTemporaryFile(64 * 1024 * 1024)
|
|
|
shutil.copyfileobj(environ['wsgi.input'], wsgi_input)
|
|
|
wsgi_input.seek(0)
|
|
|
|
|
|
environ['wsgi.input'] = gzip.GzipFile(fileobj=wsgi_input, mode='r')
|
|
|
# since we "Ungzipped" the content we say now it's no longer gzip
|
|
|
# content encoding
|
|
|
del environ['HTTP_CONTENT_ENCODING']
|
|
|
|
|
|
# content length has changes ? or i'm not sure
|
|
|
if 'CONTENT_LENGTH' in environ:
|
|
|
del environ['CONTENT_LENGTH']
|
|
|
else:
|
|
|
log.debug('content not gzipped, gzipMiddleware passing '
|
|
|
'request further')
|
|
|
return self.app(environ, start_response)
|
|
|
|
|
|
|
|
|
def is_vcs_call(environ):
|
|
|
if VCS_TYPE_KEY in environ:
|
|
|
raw_type = environ[VCS_TYPE_KEY]
|
|
|
return raw_type and raw_type != VCS_TYPE_SKIP
|
|
|
return False
|
|
|
|
|
|
|
|
|
def detect_vcs_request(environ, backends):
|
|
|
checks = {
|
|
|
'hg': (is_hg, SimpleHg),
|
|
|
'git': (is_git, SimpleGit),
|
|
|
'svn': (is_svn, SimpleSvn),
|
|
|
}
|
|
|
handler = None
|
|
|
|
|
|
if VCS_TYPE_KEY in environ:
|
|
|
raw_type = environ[VCS_TYPE_KEY]
|
|
|
if raw_type == VCS_TYPE_SKIP:
|
|
|
log.debug('got `skip` marker for vcs detection, skipping...')
|
|
|
return handler
|
|
|
|
|
|
_check, handler = checks.get(raw_type) or [None, None]
|
|
|
if handler:
|
|
|
log.debug('got handler:%s from environ', handler)
|
|
|
|
|
|
if not handler:
|
|
|
log.debug('request start: checking if request is of VCS type in order: %s', backends)
|
|
|
for vcs_type in backends:
|
|
|
vcs_check, _handler = checks[vcs_type]
|
|
|
if vcs_check(environ):
|
|
|
log.debug('vcs handler found %s', _handler)
|
|
|
handler = _handler
|
|
|
break
|
|
|
|
|
|
return handler
|
|
|
|
|
|
|
|
|
class VCSMiddleware(object):
|
|
|
|
|
|
def __init__(self, app, registry, config, appenlight_client):
|
|
|
self.application = app
|
|
|
self.registry = registry
|
|
|
self.config = config
|
|
|
self.appenlight_client = appenlight_client
|
|
|
self.use_gzip = True
|
|
|
# order in which we check the middlewares, based on vcs.backends config
|
|
|
self.check_middlewares = config['vcs.backends']
|
|
|
|
|
|
def vcs_config(self, repo_name=None):
|
|
|
"""
|
|
|
returns serialized VcsSettings
|
|
|
"""
|
|
|
try:
|
|
|
return VcsSettingsModel(
|
|
|
repo=repo_name).get_ui_settings_as_config_obj()
|
|
|
except Exception:
|
|
|
pass
|
|
|
|
|
|
def wrap_in_gzip_if_enabled(self, app, config):
|
|
|
if self.use_gzip:
|
|
|
app = GunzipMiddleware(app)
|
|
|
return app
|
|
|
|
|
|
def _get_handler_app(self, environ):
|
|
|
app = None
|
|
|
log.debug('VCSMiddleware: detecting vcs type.')
|
|
|
handler = detect_vcs_request(environ, self.check_middlewares)
|
|
|
if handler:
|
|
|
app = handler(self.config, self.registry)
|
|
|
|
|
|
return app
|
|
|
|
|
|
def __call__(self, environ, start_response):
|
|
|
# check if we handle one of interesting protocols, optionally extract
|
|
|
# specific vcsSettings and allow changes of how things are wrapped
|
|
|
vcs_handler = self._get_handler_app(environ)
|
|
|
if vcs_handler:
|
|
|
# translate the _REPO_ID into real repo NAME for usage
|
|
|
# in middleware
|
|
|
environ['PATH_INFO'] = vcs_handler._get_by_id(environ['PATH_INFO'])
|
|
|
|
|
|
# Set acl, url and vcs repo names.
|
|
|
vcs_handler.set_repo_names(environ)
|
|
|
|
|
|
# register repo config back to the handler
|
|
|
vcs_conf = self.vcs_config(vcs_handler.acl_repo_name)
|
|
|
# maybe damaged/non existent settings. We still want to
|
|
|
# pass that point to validate on is_valid_and_existing_repo
|
|
|
# and return proper HTTP Code back to client
|
|
|
if vcs_conf:
|
|
|
vcs_handler.repo_vcs_config = vcs_conf
|
|
|
|
|
|
# check for type, presence in database and on filesystem
|
|
|
if not vcs_handler.is_valid_and_existing_repo(
|
|
|
vcs_handler.acl_repo_name,
|
|
|
vcs_handler.base_path,
|
|
|
vcs_handler.SCM):
|
|
|
return HTTPNotFound()(environ, start_response)
|
|
|
|
|
|
environ['REPO_NAME'] = vcs_handler.url_repo_name
|
|
|
|
|
|
# Wrap handler in middlewares if they are enabled.
|
|
|
vcs_handler = self.wrap_in_gzip_if_enabled(
|
|
|
vcs_handler, self.config)
|
|
|
vcs_handler, _ = wrap_in_appenlight_if_enabled(
|
|
|
vcs_handler, self.config, self.appenlight_client)
|
|
|
|
|
|
return vcs_handler(environ, start_response)
|
|
|
|
|
|
return self.application(environ, start_response)
|
|
|
|
