Software / code / prosody
Annotate
tools/dnsregistry.lua @ 12480:7e9ebdc75ce4
net: isolate LuaSec-specifics
For this, various accessor functions are now provided directly on the
sockets, which reach down into the LuaSec implementation to obtain the
information.
While this may seem of little gain at first, it hides the implementation
detail of the LuaSec+LuaSocket combination that the actual socket and
the TLS layer are separate objects.
The net gain here is that an alternative implementation does not have to
emulate that specific implementation detail and "only" has to expose
LuaSec-compatible data structures on the new functions.
| author | Jonas Schäfer <jonas@wielicki.name> |
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| date | Wed, 27 Apr 2022 17:44:14 +0200 |
| parent | 12271:f31bb79f51d7 |
| child | 12855:3306807c0619 |
| rev | line source |
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tools.dnsregistry: For converting IANA DNS registry data to Lua table
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1 -- Generate util/dnsregistry.lua from IANA HTTP status code registry |
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2 local xml = require "util.xml"; |
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3 local registries = xml.parse(io.read("*a"), { allow_processing_instructions = true }); |
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4 |
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5 print("-- Source: https://www.iana.org/assignments/dns-parameters/dns-parameters.xml"); |
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6 print(os.date("-- Generated on %Y-%m-%d")) |
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7 |
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8 local registry_mapping = { |
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9 ["dns-parameters-2"] = "classes"; |
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10 ["dns-parameters-4"] = "types"; |
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11 ["dns-parameters-6"] = "errors"; |
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12 }; |
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13 |
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14 print("return {"); |
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15 for registry in registries:childtags("registry") do |
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16 local registry_name = registry_mapping[registry.attr.id]; |
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17 if registry_name then |
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18 print("\t" .. registry_name .. " = {"); |
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19 for record in registry:childtags("record") do |
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20 local record_name = record:get_child_text("name"); |
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21 local record_type = record:get_child_text("type"); |
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22 local record_desc = record:get_child_text("description"); |
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23 local record_code = tonumber(record:get_child_text("value")); |
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24 |
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25 if tostring(record):lower():match("reserved") or tostring(record):lower():match("reserved") then |
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26 record_code = nil; |
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27 end |
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28 |
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29 if registry_name == "classes" and record_code then |
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30 record_type = record_desc and record_desc:match("%((%w+)%)$") |
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31 if record_type then |
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32 print(("\t\t[%q] = %d; [%d] = %q;"):format(record_type, record_code, record_code, record_type)) |
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33 end |
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34 elseif registry_name == "types" and record_type and record_code then |
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35 print(("\t\t[%q] = %d; [%d] = %q;"):format(record_type, record_code, record_code, record_type)) |
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36 elseif registry_name == "errors" and record_code and record_name then |
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37 print(("\t\t[%d] = %q; [%q] = %q;"):format(record_code, record_name, record_name, record_desc or record_name)); |
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38 end |
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39 end |
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40 print("\t};"); |
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41 end |
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42 end |
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43 print("};"); |
