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djadhere
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services
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utils
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ip_conversion.py

ip_conversion.py 2.6 KB
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  1. from ipaddress import IPv4Address, IPv4Network, IPv6Address, IPv6Network
    2. 

  2. 

  3. 

  4. IPV4_NETWORKS = [
    5. 

  5.     IPv4Network('91.224.148.0/24'),
    6. 

  6.     IPv4Network('91.224.149.0/24'),
    7. 

  7.     IPv4Network('89.234.156.0/24'),
    8. 

  8.     IPv4Network('89.234.157.0/24'),
    9. 

  9.     IPv4Network('185.119.168.0/24'),
    10. 

  10.     IPv4Network('185.119.169.0/24'),
    11. 

  11.     IPv4Network('185.119.170.0/24'),
    12. 

  12.     IPv4Network('185.119.171.0/24'),
    13. 

  13. ]
    14. 

  14. 

  15. IPV6_NETWORKS = [
    16. 

  16.     IPv6Network('2a03:7220:8080::/48'),
    17. 

  17.     IPv6Network('2a03:7220:8081::/48'),
    18. 

  18.     IPv6Network('2a03:7220:8083::/48'),
    19. 

  19.     IPv6Network('2a03:7220:8084::/48'),
    20. 

  20.     IPv6Network('2a03:7220:8085::/48'),
    21. 

  21.     IPv6Network('2a03:7220:8086::/48'),
    22. 

  22.     IPv6Network('2a03:7220:8087::/48'),
    23. 

  23.     IPv6Network('2a03:7220:8088::/48'),
    24. 

  24. ]
    25. 

  25. 

  26. 

  27. def ipv4_to_ipv6(ipv4):
    28. 

  28.     ipv4_network = IPv4Network((ipv4, 24), strict=False)
    29. 

  29.     ipv6_network = IPV6_NETWORKS[IPV4_NETWORKS.index(ipv4_network)]
    30. 

  30.     return list(ipv6_network.subnets(8))[ipv4.packed[3]]
    31. 

  31. 

  32. 

  33. def ipv6_to_ipv4(ipv6):
    34. 

  34.     ipv6_network = IPv6Network((ipv6, 48), strict=False)
    35. 

  35.     ipv4_network = IPV4_NETWORKS[IPV6_NETWORKS.index(ipv6_network)]
    36. 

  36.     return ipv4_network[ipv6.packed[6]]
    37. 

  37. 

  38. 

  39. if __name__ == '__main__':
    40. 

  40.     ipv4_to_ipv6_tests = {
    41. 

  41.         IPv4Address('91.224.148.0'): IPv6Network('2a03:7220:8080::/56'),
    42. 

  42.         IPv4Address('91.224.149.170'): IPv6Network('2a03:7220:8081:aa00::/56'),
    43. 

  43.         IPv4Address('89.234.156.195'): IPv6Network('2a03:7220:8083:c300::/56'),
    44. 

  44.         IPv4Address('89.234.157.255'): IPv6Network('2a03:7220:8084:ff00::/56'),
    45. 

  45.     }
    46. 

  46.     for ipv4, ipv6 in ipv4_to_ipv6_tests.items():
    47. 

  47.         if ipv4_to_ipv6(ipv4) != ipv6:
    48. 

  48.             raise AssertionError('ipv4_to_ipv6(%s) = %s ≠ %s' \
    49. 

  49.                         % (ipv4, ipv4_to_ipv6(ipv4), ipv6))
    50. 

  50. 

  51.     ipv6_to_ipv4_tests = {
    52. 

  52.         IPv6Address('2a03:7220:8080:ff0d:35ac:3820::23'): IPv4Address('91.224.148.255'),
    53. 

  53.         IPv6Address('2a03:7220:8081:aa0d:35ac:3820::23'): IPv4Address('91.224.149.170'),
    54. 

  54.         IPv6Address('2a03:7220:8083:000d:35ac:3820::0'): IPv4Address('89.234.156.0'),
    55. 

  55.         IPv6Address('2a03:7220:8084:220d:35ac:3820::1'): IPv4Address('89.234.157.34'),
    56. 

  56.         IPv6Address('2a03:7220:8085:800d:35ac:3820::ff'): IPv4Address('185.119.168.128'),
    57. 

  57.         IPv6Address('2a03:7220:8086:2a0d:35ac:3820::f'): IPv4Address('185.119.169.42'),
    58. 

  58.         IPv6Address('2a03:7220:8087:f00d:35ac:3820::a'): IPv4Address('185.119.170.240'),
    59. 

  59.         IPv6Address('2a03:7220:8088:f59d:35ac:abcd:dead:beaf'): IPv4Address('185.119.171.245'),
    60. 

  60.     }
    61. 

  61.     for ipv6, ipv4 in ipv6_to_ipv4_tests.items():
    62. 

  62.         if ipv6_to_ipv4(ipv6) != ipv4:
    63. 

  63.             raise AssertionError('iv6_to_ipv4(%s) = %s ≠ %s' \
    64. 

  64.                         % (ipv6, ipv6_to_ipv4(ipv6), ipv4))
    65.