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vpngen.py 9.6KB

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  1. import glob
  2. import json
  3. import os
  4. import os.path
  5. import re
  6. import shutil
  7. from enum import Enum
  8. from subprocess import call
  9. class VpnGenError(Enum):
  10. Success = 0,
  11. VpnAlreadyExists = 1,
  12. VpnDoesNotExists = 2,
  13. ClientAlreadyExists = 3,
  14. ClientDoesNotExists = 4
  15. class VpnGen:
  16. default_config_base_dir = ""
  17. default_config_file = ""
  18. default_client_config_file = ""
  19. ovpn_config_path = ""
  20. def __init__(self, default_config_path, ovpn_config_path):
  21. self.default_config_base_dir = os.path.abspath(default_config_path)
  22. self.default_config_file = "%s.conf" % self.default_config_base_dir
  23. self.default_client_config_file = "%s%sclients%sclient.conf" % (self.default_config_base_dir, os.sep, os.sep)
  24. self.ovpn_config_path = os.path.abspath(ovpn_config_path)
  25. def f7(self, seq):
  26. seen = set()
  27. seen_add = seen.add
  28. return [x for x in seq if not (x in seen or seen_add(x))]
  29. def get_vpn_vars(self):
  30. with open(self.default_config_file, "r") as f:
  31. default_config = f.read()
  32. variables = re.findall('\$\{([^}]+)}', default_config)
  33. variables += ["KEY_COUNTRY", "KEY_PROVINCE", "KEY_CITY", "KEY_ORG", "KEY_EMAIL"]
  34. variables = self.f7(variables)
  35. return variables
  36. def get_client_vars(self, vpn_name):
  37. default_client_config_path = self.get_client_default_config_path(vpn_name)
  38. if not os.path.exists(default_client_config_path):
  39. return None
  40. with open(default_client_config_path, "r") as f:
  41. default_config = f.read()
  42. variables = re.findall('\$\{([^}]+)}', default_config)
  43. variables = self.f7(variables)
  44. return variables
  45. def get_base_dir(self, vpn_name):
  46. return "%s%s%s%s" % (self.ovpn_config_path, os.sep, vpn_name, os.sep)
  47. def get_config_path(self, vpn_name):
  48. return "%s%s%s.conf" % (self.ovpn_config_path, os.sep, vpn_name)
  49. def get_vpn_variables_path(self, vpn_name):
  50. base_dir = self.get_base_dir(vpn_name)
  51. return "%svpngen.json" % base_dir
  52. def get_easy_rsa_dir(self, vpn_name):
  53. base_dir = self.get_base_dir(vpn_name)
  54. return "%seasy-rsa%s" % (base_dir, os.sep)
  55. def get_easy_rsa_key_dir(self, vpn_name):
  56. easyrsadir = self.get_easy_rsa_dir(vpn_name)
  57. return "%skeys%s" % (easyrsadir, os.sep)
  58. def get_pkitool_path(self, vpn_name):
  59. easyrsadir = self.get_easy_rsa_dir(vpn_name)
  60. return "%spkitool" % easyrsadir
  61. def get_client_default_config_path(self, vpn_name):
  62. base_dir = self.get_base_dir(vpn_name)
  63. return "%s%sclients/client.conf" % (base_dir, os.sep)
  64. def get_client_dir(self, vpn_name, client_name):
  65. base_dir = self.get_base_dir(vpn_name)
  66. return "%sclients%s%s-%s%s" % (base_dir, os.sep, client_name, vpn_name, os.sep)
  67. def get_client_config_path(self, vpn_name, client_name):
  68. client_dir = self.get_client_dir(vpn_name, client_name)
  69. return "%s%s-%s.conf" % (client_dir, client_name, vpn_name)
  70. def get_client_generated_files_paths(self, vpn_name, client_name):
  71. keys_dir = self.get_easy_rsa_key_dir(vpn_name,)
  72. return [
  73. "%s%s.crt" % (keys_dir, client_name),
  74. "%s%s.key" % (keys_dir, client_name)
  75. ]
  76. def get_client_tarball_path(self, vpn_name, client_name):
  77. base_dir = self.get_base_dir(vpn_name)
  78. return "%sclients%s%s-%s.tar.bz2" % (base_dir, os.sep, client_name, vpn_name)
  79. def get_server_needed_files_paths(self, vpn_name):
  80. keys_dir = self.get_easy_rsa_key_dir(vpn_name)
  81. return [
  82. "%sca.crt" % keys_dir,
  83. "%sta.key" % keys_dir
  84. ]
  85. def get_all_needed_files_paths(self, vpn_name, client_name):
  86. return self.get_client_generated_files_paths(vpn_name, client_name) +\
  87. self.get_server_needed_files_paths(vpn_name)
  88. def setup_vars(self, vpn_name, variables):
  89. easyrsadir = self.get_easy_rsa_dir(vpn_name)
  90. os.environ["KEY_COUNTRY"] = variables['KEY_COUNTRY']
  91. os.environ["KEY_PROVINCE"] = variables['KEY_PROVINCE']
  92. os.environ["KEY_CITY"] = variables['KEY_CITY']
  93. os.environ["KEY_ORG"] = variables['KEY_ORG']
  94. os.environ["KEY_OU"] = variables['KEY_ORG']
  95. os.environ["KEY_CN"] = variables['KEY_ORG']
  96. os.environ["KEY_NAME"] = variables['KEY_ORG']
  97. os.environ["KEY_EMAIL"] = variables['KEY_EMAIL']
  98. os.environ["KEY_SIZE"] = variables['KEY_SIZE']
  99. os.environ["CA_EXPIRE"] = variables['CA_EXPIRE']
  100. os.environ["KEY_EXPIRE"] = variables['KEY_EXPIRE']
  101. os.environ["EASY_RSA"] = easyrsadir
  102. os.environ["OPENSSL"] = "openssl"
  103. os.environ["PKCS11TOOL"] = "pkcs11-tool"
  104. os.environ["GREP"] = "grep"
  105. os.environ["KEY_CONFIG"] = "%s%s" % (easyrsadir, "openssl.cnf")
  106. os.environ["KEY_DIR"] = "%s%s" % (easyrsadir, "keys")
  107. os.environ["PKCS11_MODULE_PATH"] = "dummy"
  108. os.environ["PKCS11_PIN"] = "dummy"
  109. def create_vpn(self, vpn_name, variables):
  110. base_dir = self.get_base_dir(vpn_name)
  111. conf_file = self.get_config_path(vpn_name)
  112. conf_vpngen_file = self.get_vpn_variables_path(vpn_name)
  113. if os.path.exists(base_dir) or os.path.exists(conf_file):
  114. return VpnGenError.VpnAlreadyExists
  115. with open(self.default_config_file, "r") as f:
  116. default_config = f.read()
  117. variables['name'] = vpn_name
  118. for variable in variables:
  119. default_config = default_config.replace("${%s}" % variable, variables[variable])
  120. os.makedirs(base_dir)
  121. with open(conf_file, "w") as f:
  122. f.write(default_config)
  123. os.rmdir(base_dir)
  124. shutil.copytree(self.default_config_base_dir, base_dir)
  125. curdir = os.curdir
  126. easyrsadir = self.get_easy_rsa_dir(vpn_name)
  127. pkitool = self.get_pkitool_path(vpn_name)
  128. os.chdir(easyrsadir)
  129. self.setup_vars(vpn_name, variables)
  130. call([".%sclean-all" % os.sep])
  131. call([pkitool, "--initca", "-batch"])
  132. call([pkitool, "--server", "server", "-batch"])
  133. call([".%sbuild-dh" % os.sep])
  134. call(["openssl", "ca", "-gencrl",
  135. "-keyfile", "keys%sca.key" % os.sep,
  136. "-cert", "keys%sca.crt" % os.sep,
  137. "-out", "keys%scrl.pem" % os.sep,
  138. "-config", "openssl.cnf"])
  139. del os.environ["KEY_OU"]
  140. del os.environ["KEY_CN"]
  141. del os.environ["KEY_NAME"]
  142. call(["openvpn", "--genkey", "--secret", "keys%sta.key" % os.sep])
  143. with open(conf_vpngen_file, "w") as f:
  144. json.dump({'variables': variables}, f, indent=4, separators=(',', ': '))
  145. os.chdir(curdir)
  146. return VpnGenError.Success
  147. def remove_vpn(self, vpn_name):
  148. base_dir = self.get_base_dir(vpn_name)
  149. conf_file = self.get_config_path(vpn_name)
  150. if not os.path.exists(base_dir) and not os.path.exists(conf_file):
  151. return VpnGenError.VpnDoesNotExists
  152. os.remove(conf_file)
  153. shutil.rmtree(base_dir)
  154. return VpnGenError.Success
  155. def create_client(self, vpn_name, client_name, variables):
  156. base_dir = self.get_base_dir(vpn_name)
  157. if not os.path.exists(base_dir):
  158. return VpnGenError.VpnDoesNotExists
  159. client_dir = self.get_client_dir(vpn_name, client_name)
  160. if os.path.exists(client_dir):
  161. return VpnGenError.ClientAlreadyExists
  162. curdir = os.curdir
  163. easyrsadir = self.get_easy_rsa_dir(vpn_name)
  164. pkitool = self.get_pkitool_path(vpn_name)
  165. os.chdir(easyrsadir)
  166. self.setup_vars(vpn_name, variables)
  167. os.environ["KEY_CN"] = client_name
  168. os.environ["KEY_NAME"] = client_name
  169. call([pkitool, client_name])
  170. os.chdir(curdir)
  171. self.build_client(vpn_name, client_name, variables)
  172. return VpnGenError.Success
  173. def remove_client(self, vpn_name, client_name):
  174. base_dir = self.get_base_dir(vpn_name)
  175. if not os.path.exists(base_dir):
  176. return VpnGenError.VpnDoesNotExists
  177. client_dir = self.get_client_dir(vpn_name, client_name)
  178. if not os.path.exists(client_dir):
  179. return VpnGenError.ClientDoesNotExists
  180. return VpnGenError.Success
  181. def rebuild_clients(self, vpn_name):
  182. base_dir = self.get_base_dir(vpn_name)
  183. return VpnGenError.Success
  184. def build_client(self, vpn_name, client_name, variables):
  185. client_dir = self.get_client_dir(vpn_name, client_name)
  186. client_conf_file = self.get_client_config_path(vpn_name, client_name)
  187. client_default_config_path = self.get_client_default_config_path(vpn_name)
  188. with open(client_default_config_path, "r") as f:
  189. client_default_config = f.read()
  190. variables['name'] = vpn_name
  191. variables['client'] = client_name
  192. for variable in variables:
  193. client_default_config = client_default_config.replace("${%s}" % variable, variables[variable])
  194. os.makedirs(client_dir)
  195. with open(client_conf_file, "w") as f:
  196. f.write(client_default_config)
  197. files_paths = self.get_all_needed_files_paths(vpn_name, client_name)
  198. for file_path in files_paths:
  199. split = os.path.splitext(file_path)
  200. dest = "%s%s-%s%s" % (client_dir, os.path.basename(split[0]), vpn_name, split[1])
  201. shutil.copy(file_path, dest)
  202. files_names = glob.glob("%s%s*" % (client_dir, os.sep))
  203. files_names = list(map(lambda file_path: os.path.basename(file_path), files_names))
  204. call(["tar", "cfj", self.get_client_tarball_path(vpn_name, client_name),
  205. "-C", client_dir] + files_names)