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path: root/backend/resilient/__init__.py
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import fileinput
import os
import shutil
import subprocess
import tempfile
import time
import urllib

__all__ = ["freenet"]

backend_path = os.path.normpath(os.path.join(os.path.dirname(__file__), '..'))

auth_path = os.path.join(backend_path, 'auth')
dep_path = os.path.join(backend_path, 'dep')
html_path = os.path.normpath(os.path.join(backend_path, '../html'))
wiki_src_path = os.path.normpath(os.path.join(backend_path, '../wiki'))
ikiwiki_setup_path = os.path.join(backend_path, 'ikiwiki.setup')
git_path = os.path.normpath(os.path.join(backend_path, '../.git'))

ssh_config_path = os.path.join(auth_path, "ssh-config")

for auth_subpath, auth_subpaths, auth_subfiles in os.walk(auth_path):
  for auth_subfile in auth_subfiles:
    auth_subfile = os.path.join(auth_subpath, auth_subfile)
    if os.path.isfile(auth_subfile):
      os.chmod(auth_subfile, 0600)

def url200(url):
  try:
    return urllib.urlopen(url).getcode() == 200
  except IOError:
    return False

class git:
  found = (os.system("git status --porcelain") == 0)
  if not found:
    print("ERROR: git not found")
    exit(1)
  else:
    os.system("git submodule init")
    os.system("git submodule update")

  def __init__(self, remote, push_remote = ""):
    self.remote = remote
    if push_remote == "":
      push_remote = remote
    self.push_remote = push_remote

  def pull(self):
    if self.remote == None:
      return False
    os.environ["GIT_SSH_COMMAND"] = "ssh -F %s" % ssh_config_path
    status = os.system("git pull %s master" % self.remote)
    del os.environ["GIT_SSH_COMMAND"]
    return status == 0

  def push(self):
    if self.push_remote == None:
      return False
    os.environ["GIT_SSH_COMMAND"] = "ssh -F %s" % ssh_config_path
    status = os.system("git push %s master" % self.push_remote)
    del os.environ["GIT_SSH_COMMAND"]
    return status == 0


class ikiwiki:
  found = (os.system("ikiwiki --version") == 0)
  if not found:
    print("WARNING: ikiwiki not found, pages will not be built")
  
  synced = False

  def push(self):
    if not ikiwiki.found:
      return False

    if ikiwiki.synced:
      return True

    shutil.rmtree(html_path)
    os.mkdir(html_path)

    status = os.system("ikiwiki --setup '%s' '%s' '%s'" % (ikiwiki_setup_path, wiki_src_path, html_path))

    ikiwiki.synced = (status == 0)
    if ikiwiki.synced:
      os.system('git gc')
      os.system('git update-server-info')
      html_git_path = os.path.join(html_path, '.git')
      os.mkdir(html_git_path)
      for path in ['objects', 'refs', 'HEAD', 'info', 'packed-refs']:
        git_subpath = os.path.join(git_path, path)
        html_git_subpath = os.path.join(html_git_path, path)
        if os.path.isdir(git_subpath):
          shutil.copytree(git_subpath, html_git_subpath)
        else:
          shutil.copy2(git_subpath, html_git_subpath)
    return ikiwiki.synced


class zeronet:
  running = url200('http://127.0.0.1:43110/1HeLLo4uzjaLetFx6NH3PMwFP3qbRbTf3D')
  if not running:
    print("WARNING: ZeroNet not running, won't be used")

  found = 'ZERONETDIR' in os.environ
  if found:
    zn_datadir = os.path.join(os.environ['ZERONETDIR'], 'ZeroNet/data')
    zn_script = os.path.join(os.environ['ZERONETDIR'], 'ZeroNet.sh')
    found = (os.system("'%s' --version" % zn_script) == 0)
  if not found:
    print("WARNING: ZeroNet bundle not found in ZERONETDIR, public zeronet site won't be updated")

  def __init__(self, addr, key):
    self.addr = addr
    self.key = key

  def push(self):
    if not ikiwiki.synced or not zeronet.found:
      return False
    zitedir = os.path.join(zeronet.zn_datadir, self.addr)
    shutil.rmtree(zitedir, True)
    shutil.copytree(html_path, zitedir)
    status = os.system('%s siteSign %s %s' % (zeronet.zn_script, self.addr, self.key))
    return status == 0

class ipfs:
  found = (os.system('ipfs version') == 0)
  if not found:
    print("WARNING: ipfs not found, ipfs content won't be updated")

  synced = False

  def __init__(self, configdir):
    self.configdir = os.path.join(auth_path, configdir)
    subprocess.Popen(['ipfs', '-c', self.configdir, 'daemon'])
    while self._config('Identity.PeerID') == None:
      time.sleep(0.5)
    self.peerid = self._config('Identity.PeerID')
    self.gateway = self._config('Addresses.Gateway').replace('/ip4','http:/').replace('/tcp/',':')

  def _config(self, key):
    proc = subprocess.Popen(['ipfs', '-c', self.configdir, 'config', key], stdout=subprocess.PIPE)
    for line in proc.stdout:
	return line[0:-1]
  
  def push(self):
    if not ikiwiki.synced or not ipfs.found:
      return False

    # add files to ipfs
    if not ipfs.synced:
      proc = subprocess.Popen(['ipfs', '-c', self.configdir, 'add', '-rH', html_path], stdout=subprocess.PIPE)
      for line in proc.stdout:
        print line[0:-1]
      ipfs.hash = line[6:52]
      ipfs.synced = True

    # publish hash to private key
    proc = subprocess.Popen(['ipfs', '-c', self.configdir, 'name', 'publish', ipfs.hash], stdout=subprocess.PIPE)
    for line in proc.stdout:
      print line[0:-1]
    self.peerid = line[13:59]
    status = proc.wait()
    return status == 0