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import os
import shutil
import platform
import time
import threading
import ConfigParser
from leap.bitmask.app import start_app as bitmask_client
from leap.common.events import server, signal
from leap.common.events import events_pb2 as proto
import tuf.client.updater
bundles_per_platform = {
"Windows": "windows",
"Darwin": "darwin",
"Linux": "linux",
}
GENERAL_SECTION = "General"
DELAY_KEY = "updater_delay"
class TUF(threading.Thread):
def __init__(self, config):
"""
Initialize the list of mirrors, paths and other TUF dependencies from the config file
"""
if config.has_section(GENERAL_SECTION) and \
config.has_option(GENERAL_SECTION, DELAY_KEY):
self.delay = config.getint(GENERAL_SECTION, DELAY_KEY)
else:
self.delay = 60
self._load_mirrors(config)
if not self.mirrors:
print "ERROR: No updater mirrors found (missing or not well formed launcher.conf)"
self.bundle_path = os.getcwd()
self.source_path = self.bundle_path
self.dest_path = os.path.join(self.bundle_path, 'tmp')
self.update_path = os.path.join(self.bundle_path, 'updates')
threading.Thread.__init__(self)
def run(self):
"""
Check for updates periodically
"""
if not self.mirrors:
return
while True:
try:
tuf.conf.repository_directory = os.path.join(self.bundle_path, 'repo')
updater = tuf.client.updater.Updater('leap-updater', self.mirrors)
updater.refresh()
targets = updater.all_targets()
updated_targets = updater.updated_targets(targets, self.source_path)
for target in updated_targets:
updater.download_target(target, self.dest_path)
self._set_permissions(target)
if os.path.isdir(self.dest_path):
if os.path.isdir(self.update_path):
shutil.rmtree(self.update_path)
shutil.move(self.dest_path, self.update_path)
signal(proto.UPDATER_NEW_UPDATES,
content=", ".join(sorted([f['filepath'] for f in updated_targets])))
return
except Exception as e:
print "ERROR:", e
finally:
time.sleep(self.delay)
def _load_mirrors(self, config):
self.mirrors = {}
for section in config.sections():
if section[:6] != 'Mirror':
continue
url_prefix = config.get(section, 'url_prefix')
metadata_path = bundles_per_platform[platform.system()] + '/metadata'
targets_path = bundles_per_platform[platform.system()] + '/targets'
self.mirrors[section[7:]] = {'url_prefix': url_prefix,
'metadata_path': metadata_path,
'targets_path': targets_path,
'confined_target_dirs': ['']}
def _set_permissions(self, target):
file_permisions = int(target["fileinfo"]["custom"]["file_permissions"], 8)
filepath = target['filepath']
if filepath[0] == '/':
filepath = filepath[1:]
file_path = os.path.join(self.dest_path, filepath)
os.chmod(file_path, file_permisions)
if __name__ == "__main__":
server.ensure_server(port=8090)
config = ConfigParser.ConfigParser()
config.read("launcher.conf")
tuf_thread = TUF(config)
tuf_thread.daemon = True
tuf_thread.start()
bitmask_client()
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