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#
# Copyright (C) 2008, 2009 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# 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 General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""Search for branches underneath a directory and serve them all."""
import logging
import os
import sys
from bzrlib.plugin import load_plugins
from paste import httpserver
from paste.auth.basic import AuthBasicHandler
from paste.auth.digest import AuthDigestHandler
from paste.httpexceptions import HTTPExceptionHandler, HTTPInternalServerError
from paste.translogger import TransLogger
from loggerhead import __version__
from loggerhead.apps.transport import (
BranchesFromTransportRoot, UserBranchesFromTransportRoot)
from loggerhead.config import LoggerheadConfig
from loggerhead import htpasswd
from loggerhead.util import Reloader
from loggerhead.apps.error import ErrorHandlerApp
def get_config_and_path(args):
config = LoggerheadConfig(args)
if config.get_option('show_version'):
print "loggerhead %s" % (__version__,)
sys.exit(0)
if config.arg_count > 1:
config.print_help()
sys.exit(1)
elif config.arg_count == 1:
base = config.get_arg(0)
else:
base = '.'
if not config.get_option('allow_writes'):
base = 'readonly+' + base
return config, base
def setup_logging(config, init_logging=True, log_file=None):
log_level = config.get_log_level()
if init_logging:
logging.basicConfig()
if log_level is not None:
logging.getLogger('').setLevel(log_level)
logger = logging.getLogger('loggerhead')
if log_level is not None:
logger.setLevel(log_level)
if log_file is not None:
handler = logging.StreamHandler(log_file)
else:
if config.get_option('log_folder'):
logfile_path = os.path.join(
config.get_option('log_folder'), 'serve-branches.log')
else:
logfile_path = 'serve-branches.log'
handler = logging.FileHandler(logfile_path, 'a')
formatter = logging.Formatter('%(asctime)s %(levelname)-8s %(name)s:'
' %(message)s')
handler.setFormatter(formatter)
# We set the handler to accept all messages, the *logger* won't emit them
# if it is configured to suppress it
handler.setLevel(logging.DEBUG)
logger.addHandler(handler)
def _restrict_logging(logger_name):
logger = logging.getLogger(logger_name)
if logger.getEffectiveLevel() < logging.INFO:
logger.setLevel(logging.INFO)
# simpleTAL is *very* verbose in DEBUG mode, which is otherwise the
# default. So quiet it up a bit.
_restrict_logging('simpleTAL')
_restrict_logging('simpleTALES')
return logger
def make_app_for_config_and_path(config, base):
if config.get_option('trunk_dir') and not config.get_option('user_dirs'):
print "--trunk-dir is only valid with --user-dirs"
sys.exit(1)
if config.get_option('reload'):
if Reloader.is_installed():
Reloader.install()
else:
return Reloader.restart_with_reloader()
if config.get_option('user_dirs'):
if not config.get_option('trunk_dir'):
print "You didn't specify a directory for the trunk directories."
sys.exit(1)
app = UserBranchesFromTransportRoot(base, config)
else:
app = BranchesFromTransportRoot(base, config)
setup_logging(config)
if config.get_option('profile'):
from loggerhead.middleware.profile import LSProfMiddleware
app = LSProfMiddleware(app)
if config.get_option('memory_profile'):
from dozer import Dozer
app = Dozer(app)
if not config.get_option('user_prefix'):
prefix = '/'
else:
prefix = config.get_option('user_prefix')
if not prefix.startswith('/'):
prefix = '/' + prefix
try:
from paste.deploy.config import PrefixMiddleware
except ImportError:
cant_proxy_correctly_message = (
'Unsupported configuration: PasteDeploy not available, but '
'loggerhead appears to be behind a proxy.')
def check_not_proxied(app):
def wrapped(environ, start_response):
if 'HTTP_X_FORWARDED_SERVER' in environ:
exc = HTTPInternalServerError()
exc.explanation = cant_proxy_correctly_message
raise exc
return app(environ, start_response)
return wrapped
app = check_not_proxied(app)
else:
app = PrefixMiddleware(app, prefix=prefix)
app = HTTPExceptionHandler(app)
app = ErrorHandlerApp(app)
app = TransLogger(app, logger=logging.getLogger('loggerhead'))
return app
def main(args):
load_plugins()
config, path = get_config_and_path(args)
app = make_app_for_config_and_path(config, path)
if not config.get_option('user_port'):
port = '8080'
else:
port = config.get_option('user_port')
if not config.get_option('user_host'):
host = '0.0.0.0'
else:
host = config.get_option('user_host')
if config.get_option('auth_realm'):
realm = config.get_option('auth_realm')
if config.get_option('digest_auth'):
path = config.get_option('digest_auth')
users = {}
# parse htdigest file
for line in open(path):
# format: $user:$realm:$hash
htuser, htrealm, hthash = line.strip().split(':', 2)
if htrealm not in users:
users[htrealm] = {}
users[htrealm][htuser] = hthash
def d_handler(environ, hrealm, huser):
return users.get(hrealm, {}).get(huser, False)
app = AuthDigestHandler(app, realm, d_handler)
elif config.get_option('basic_auth'):
path = config.get_option('basic_auth')
htp = htpasswd.HtpasswdFile(path)
def b_handler(environ, username, password):
result = [hthash for htuser, hthash in htp.entries
if htuser == username]
if len(result) == 0:
return False
hthash = result[0]
return htpasswd.crypt.crypt(password, hthash[:2]) == hthash
app = AuthBasicHandler(app, realm, b_handler)
elif config.get_option('basic_auth') or config.get_option('digest_auth'):
print 'Both the --basic-auth and --digest-auth flags require that', \
'the --auth-realm flag is set.'
sys.exit(1)
if not config.get_option('protocol'):
protocol = 'http'
else:
protocol = config.get_option('protocol')
if protocol == 'http':
httpserver.serve(app, host=host, port=port)
else:
if protocol == 'fcgi':
from flup.server.fcgi import WSGIServer
elif protocol == 'scgi':
from flup.server.scgi import WSGIServer
elif protocol == 'ajp':
from flup.server.ajp import WSGIServer
else:
print 'Unknown protocol: %s.' % (protocol)
sys.exit(1)
WSGIServer(app, bindAddress=(host, int(port))).run()
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