197 lines
7.5 KiB
Python
197 lines
7.5 KiB
Python
import json
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import os
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import requests
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import subprocess
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import sys
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import tempfile
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import urlparse
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from django.conf import settings
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from django.core.management.base import BaseCommand, CommandError
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from django.core.management import call_command, get_commands
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from tenant_schemas.utils import tenant_context
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from hobo.multitenant.middleware import TenantMiddleware, TenantNotFound
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from hobo.theme.utils import get_theme
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# TODO: move this to settings
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KEY_SIZE = 1024
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DAYS = 3652
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def replace_file(path, content):
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dirname = os.path.dirname(path)
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fd, temp = tempfile.mkstemp(dir=dirname,
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prefix='.tmp-'+os.path.basename(path)+'-')
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f = os.fdopen(fd, 'w')
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f.write(content)
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f.flush()
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os.fsync(f.fileno())
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f.close()
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os.rename(temp, path)
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class Command(BaseCommand):
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early_secondary_exit = True
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me = None
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def add_arguments(self, parser):
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parser.add_argument('base_url', metavar='BASE_URL', nargs='?', type=str)
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parser.add_argument('json_filename', metavar='JSON_FILENAME', nargs='?', type=str)
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parser.add_argument('--ignore-timestamp', dest='ignore_timestamp',
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action="store_true", default=False)
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parser.add_argument('--redeploy', action="store_true", default=False)
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def handle(self, base_url=None, json_filename=None, ignore_timestamp=None,
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redeploy=None, *args, **kwargs):
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if redeploy:
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for tenant in TenantMiddleware.get_tenants():
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try:
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hobo_environment = tenant.get_hobo_json()
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except IOError:
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continue
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try:
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me = [x for x in hobo_environment.get('services') if x.get('this') is True][0]
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except IndexError:
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continue
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self.deploy(me['base_url'], hobo_environment, True)
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print 'Redeployed', me['base_url']
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else:
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if not base_url or not json_filename:
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raise CommandError('missing args')
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if json_filename == '-':
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hobo_environment = json.load(sys.stdin)
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else:
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hobo_environment = json.load(file(json_filename))
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self.deploy(base_url, hobo_environment, ignore_timestamp)
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def deploy(self, base_url, hobo_environment, ignore_timestamp):
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self.me = [x for x in hobo_environment.get('services') if x.get('base_url') == base_url][0]
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if self.me.get('secondary') and self.early_secondary_exit:
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# early exit, we don't redeploy secondary services
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return
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domain = urlparse.urlparse(self.me.get('base_url')).netloc.split(':')[0]
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try:
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tenant = TenantMiddleware.get_tenant_by_hostname(domain)
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except TenantNotFound:
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# create tenant for domain
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call_command('create_tenant', domain)
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tenant = TenantMiddleware.get_tenant_by_hostname(domain)
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timestamp = hobo_environment.get('timestamp')
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tenant_hobo_json = os.path.join(tenant.get_directory(), 'hobo.json')
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if os.path.exists(tenant_hobo_json):
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if not ignore_timestamp and json.load(file(tenant_hobo_json)).get('timestamp') == timestamp:
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return
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# add an attribute to current tenant for easier retrieval
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self.me['this'] = True
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self.deploy_specifics(hobo_environment, tenant)
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if not self.me.get('secondary'):
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replace_file(tenant_hobo_json, json.dumps(hobo_environment, indent=2))
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self.configure_template(hobo_environment, tenant)
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def deploy_specifics(self, hobo_environment, tenant):
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# configure things that are quite common but may actually not be
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# common to *all* tenants.
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self.generate_saml_keys(tenant, prefix='sp-')
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self.configure_service_provider(hobo_environment, tenant)
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self.configure_theme(hobo_environment, tenant)
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def generate_saml_keys(self, tenant, prefix=''):
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def openssl(*args):
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with open('/dev/null', 'w') as dev_null:
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subprocess.check_call(['openssl'] + list(args), stdout=dev_null, stderr=dev_null)
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key_file = os.path.join(tenant.get_directory(), '%ssaml.key' % prefix)
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cert_file = os.path.join(tenant.get_directory(), '%ssaml.crt' % prefix)
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# if files exist don't regenerate them
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if os.path.exists(key_file) and os.path.exists(cert_file):
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return
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openssl('req', '-x509', '-sha256', '-newkey', 'rsa:%s' % KEY_SIZE, '-nodes',
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'-keyout', key_file, '-out', cert_file, '-batch',
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'-subj', '/CN=%s' % tenant.domain_url[:60], '-days', str(DAYS))
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def configure_service_provider(self, hobo_environment, tenant):
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# configure authentication against identity provider
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for service in hobo_environment.get('services'):
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idp_url = service.get('saml-idp-metadata-url')
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if not idp_url:
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continue
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try:
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response = requests.get(idp_url, verify=False)
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except requests.exceptions.RequestException:
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continue
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if response.status_code != 200:
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continue
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tenant_idp_metadata = os.path.join(tenant.get_directory(),
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'idp-metadata-%s.xml' % service.get('id'))
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replace_file(tenant_idp_metadata, response.content)
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# break now, only a single IdP is supported
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break
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def get_theme(self, hobo_environment):
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theme_id = None
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if self.me:
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theme_id = self.me.get('variables', {}).get('theme')
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if not theme_id:
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theme_id = hobo_environment.get('variables', {}).get('theme')
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if not theme_id:
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return
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theme = get_theme(theme_id)
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if not theme:
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return
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return theme
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def configure_theme(self, hobo_environment, tenant):
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theme = self.get_theme(hobo_environment)
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if not theme:
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return
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tenant_dir = tenant.get_directory()
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theme_dir = os.path.join(tenant_dir, 'theme')
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target_dir = os.path.join(settings.THEMES_DIRECTORY,
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theme.get('module'))
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def atomic_symlink(src, dst):
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if os.path.exists(dst) and os.readlink(dst) == src:
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return
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if os.path.exists(dst + '.tmp'):
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os.unlink(dst + '.tmp')
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os.symlink(src, dst + '.tmp')
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os.rename(dst + '.tmp', dst)
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atomic_symlink(target_dir, theme_dir)
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for part in ('static', 'templates'):
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if not os.path.islink(os.path.join(tenant_dir, part)) and \
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os.path.isdir(os.path.join(tenant_dir, part)):
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try:
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os.rmdir(os.path.join(tenant_dir, part))
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except OSError:
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continue
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if not theme.get('overlay'):
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try:
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os.unlink(os.path.join(tenant_dir, part))
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except OSError:
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pass
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else:
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target_dir = os.path.join(settings.THEMES_DIRECTORY,
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theme.get('overlay'), part)
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atomic_symlink(target_dir, os.path.join(tenant_dir, part))
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def configure_template(self, hobo_environment, tenant):
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me = [x for x in hobo_environment.get('services') if x.get('this') is True][0]
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if 'import_template' in get_commands() and me.get('template_name'):
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with tenant_context(tenant):
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call_command('import_template', me['template_name'])
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