mirror of
https://github.com/NeoCloud/NeoNetwork
synced 2024-11-22 20:00:40 +08:00
57 lines
1.7 KiB
Python
Executable file
57 lines
1.7 KiB
Python
Executable file
#!/usr/bin/env python3
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import sys
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from ipaddress import IPv4Address, ip_network, IPv4Network
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from pathlib import Path
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import toml
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from rfc2317 import gen_reverse_pointers
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RESOLVE_FILE = Path("dns", "db.10.127")
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ROUTE_FILE = Path("route")
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RFC2317_FILE = Path("dns", "rfc2317.toml")
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def iter_route(route_type: str):
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items = []
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for f in ROUTE_FILE.iterdir():
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routes = toml.loads(f.read_text())
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items.extend(
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(entity["name"], ip_network(route).network_address)
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for route, entity in routes.items()
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if entity["type"] == route_type and isinstance(ip_network(route), IPv4Network)
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)
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routes = []
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remove = []
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for item in items[::-1]:
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if item[1] in routes:
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remove.append(item)
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else:
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routes.append(item[1])
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for i in remove:
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items.remove(i)
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return sorted(items, key=lambda item: item[1])
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def iter_rfc2317_entry():
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entries = toml.loads(RFC2317_FILE.read_text())
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for (route, attributes) in entries.items():
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ns = attributes.get('ns')
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yield(route, ns)
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def main():
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orignal = RESOLVE_FILE.read_text()
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orignal = orignal[: orignal.find("\n; AUTOGENERATED")]
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records = [orignal, "; AUTOGENERATED", "", "; Loopback Addresses"]
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for name, address in iter_route("loopback"):
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if isinstance(address, IPv4Address):
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pointer = address.reverse_pointer.replace(".127.10.in-addr.arpa", "")
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records.append("%s\tIN\tPTR\t%s.neo." % (pointer, name))
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records.extend(("", "; rfc2317"))
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for route, ns in iter_rfc2317_entry():
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records.extend(gen_reverse_pointers(route, ns))
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records.append("")
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RESOLVE_FILE.write_text("\n".join(records))
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if __name__ == "__main__":
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main()
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