openmedialibrary/oml/update.py
2015-11-30 17:49:33 +01:00

209 lines
7.9 KiB
Python

# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
from contextlib import closing
import json
import os
import tarfile
import urllib.request, urllib.error, urllib.parse
import shutil
import subprocess
import sys
import ed25519
import ox
from oxtornado import actions
import settings
import logging
logger = logging.getLogger(__name__)
ENCODING='base64'
def verify(release):
vk = ed25519.VerifyingKey(settings.OML_UPDATE_KEY, encoding=ENCODING)
value = []
for module in sorted(release['modules']):
value += [str('%s/%s' % (release['modules'][module]['version'], release['modules'][module]['sha1']))]
value = '\n'.join(value)
value = value.encode()
sig = release['signature'].encode()
try:
vk.verify(sig, value, encoding=ENCODING)
except ed25519.BadSignatureError:
return False
return True
def get(url, filename=None):
request = urllib.request.Request(url, headers={
'User-Agent': settings.USER_AGENT
})
with closing(urllib.request.urlopen(request)) as u:
if not filename:
data = u.read()
return data
else:
dirname = os.path.dirname(filename)
if dirname and not os.path.exists(dirname):
os.makedirs(dirname)
with open(filename, 'wb') as fd:
data = u.read(4096)
while data:
fd.write(data)
data = u.read(4096)
def check():
if settings.release:
release_data = get(settings.server.get('release_url',
'http://downloads.openmedialibrary.com/release.json'))
release = json.loads(release_data.decode('utf-8'))
old = current_version('openmedialibrary')
new = release['modules']['openmedialibrary']['version']
return verify(release) and old < new
return False
def current_version(module):
if 'modules' in settings.release \
and module in settings.release['modules'] \
and 'version' in settings.release['modules'][module]:
version = settings.release['modules'][module]['version']
else:
version = ''
return version
def download():
if not os.path.exists(os.path.join(settings.config_path, 'release.json')):
return True
release_data = get(settings.server.get('release_url'))
release = json.loads(release_data.decode('utf-8'))
if verify(release):
ox.makedirs(settings.updates_path)
os.chdir(os.path.dirname(settings.base_dir))
current_files = {'release.json'}
for module in release['modules']:
if release['modules'][module]['version'] > current_version(module):
module_tar = os.path.join(settings.updates_path, release['modules'][module]['name'])
base_url = settings.server.get('release_url').rsplit('/', 1)[0]
url = '/'.join([base_url, release['modules'][module]['name']])
if not os.path.exists(module_tar):
print('downloading', os.path.basename(module_tar))
get(url, module_tar)
if ox.sha1sum(module_tar) != release['modules'][module]['sha1']:
os.unlink(module_tar)
return False
current_files.add(os.path.basename(module_tar))
with open(os.path.join(settings.updates_path, 'release.json'), 'wb') as fd:
fd.write(release_data)
for f in set(next(os.walk(settings.updates_path))[2])-current_files:
os.unlink(os.path.join(settings.updates_path, f))
return True
return True
def install():
if not os.path.exists(os.path.join(settings.updates_path, 'release.json')):
return True
if not os.path.exists(os.path.join(settings.config_path, 'release.json')):
return True
with open(os.path.join(settings.updates_path, 'release.json')) as fd:
release = json.load(fd)
old_version = current_version('openmedialibrary')
new_version = release['modules']['openmedialibrary']['version']
if verify(release) and old_version < new_version:
os.chdir(os.path.dirname(settings.base_dir))
for module in release['modules']:
if release['modules'][module]['version'] > current_version(module):
module_tar = os.path.join(settings.updates_path, release['modules'][module]['name'])
if os.path.exists(module_tar) and ox.sha1sum(module_tar) == release['modules'][module]['sha1']:
#tar fails if old platform is moved before extract
new = '%s_new' % module
ox.makedirs(new)
os.chdir(new)
tar = tarfile.open(module_tar)
tar.extractall()
tar.close()
os.chdir(os.path.dirname(settings.base_dir))
module_old = '%s_old' % module
if os.path.exists(module):
shutil.move(module, module_old)
shutil.move(os.path.join(new, module), module)
if os.path.exists(module_old):
shutil.rmtree(module_old)
shutil.rmtree(new)
else:
os.unlink(module_tar)
return False
shutil.copy(os.path.join(settings.updates_path, 'release.json'), os.path.join(settings.config_path, 'release.json'))
for cmd in [
['./ctl', 'stop'],
['./ctl', 'setup'],
['./ctl', 'postupdate', '-o', old_version, '-n', new_version]
]:
subprocess.call(cmd)
upgrade_app()
return True
return True
def get_app_version(app):
plist = app + '/Contents/Info.plist'
if os.path.exists(plist):
cmd = ['defaults', 'read', plist, 'CFBundleShortVersionString']
return subprocess.check_output(cmd).strip()
def upgrade_app():
if sys.platform == 'darwin':
base = os.path.dirname(settings.base_dir)
bundled_app = base + 'platform/Darwin/Applications/Open Media Library.app'
app = '/Applications/Open Media Library.app'
version = get_app_version(app)
current_version = get_app_version(bundled_app)
if version and current_version and version != current_version:
try:
shutil.rmtree(app)
shutil.copytree(bundled_app, app)
except:
logger.debug('Failed to update Application', exc_info=1)
def getVersion(data):
'''
check if new version is available
'''
response = {
'current': settings.MINOR_VERSION,
'upgrade': False,
}
if settings.MINOR_VERSION == 'git':
cmd = ['git', 'rev-parse', '@']
p = subprocess.Popen(cmd, stdout=subprocess.PIPE, close_fds=True)
stdout, stderr = p.communicate()
current = stdout.strip()
cmd = ['git', 'ls-remote', 'origin', '-h', 'refs/heads/master']
p = subprocess.Popen(cmd, stdout=subprocess.PIPE, close_fds=True)
stdout, stderr = p.communicate()
new = stdout.strip()[:40]
response['update'] = current != new
else:
if not os.path.exists(os.path.join(settings.updates_path, 'release.json')):
return response
if not os.path.exists(os.path.join(settings.config_path, 'release.json')):
return response
with open(os.path.join(settings.updates_path, 'release.json')) as fd:
release = json.load(fd)
current = current_version('openmedialibrary')
response['current'] = current
new = release['modules']['openmedialibrary']['version']
response['new'] = new
response['update'] = current < new
return response
actions.register(getVersion, cache=False)
def restart(data):
'''
restart (and upgrade if upgrades are available)
'''
subprocess.Popen([os.path.join(settings.base_dir, 'ctl'), 'restart'], close_fds=True)
return {}
actions.register(restart, cache=False)