prosody
3a75472a3b9d
util/jsonpointer.lua

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util/jsonpointer.lua @ 13531:3a75472a3b9d

doap: Update XEP for mostly editorial changes XEP-0004: Changes <reported> which is not implemented XEP-0030: A note on some implementations not advertising disco#info XEP-0106: Now references PRECIS which we don't have access to XEP-0107: Editorial fixing of a typo XEP-0133: Removal of 'Get User Password' already done in 21a1b9fb08a1, editorial changes XEP-0153: Editorial changes XEP-0198: Editorial changes and clarifications XEP-0223: Updated security considerations XEP-0292: The difference is that the iq syntax implemented in mod_vcard4 is removed. To become compliant, simply unload this module. XEP-0313: Editorial and minor changes XEP-0398: Advanced to Stable, no other changes XEP-0398: Now mentions the implementation method used in mod_vcard_legacy XEP-0402: Changes only affecting clients XEP-0421: Added requirements we already satisfy XEP-0440: Editorial changes XEP-0478: Editorial changes Due to their size, review of changes to XEP-0045 and XEP-0060 has been left for later.
author Kim Alvefur <zash@zash.se>
date Sat, 26 Oct 2024 18:06:49 +0200
parent 12781:22066b02887f
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rev   line source
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22066b02887f util.startup: Provide a common Lua 5.3+ math.type() for Lua 5.2
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1 local m_type = math.type;
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2
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3 local function unescape_token(escaped_token)
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4 local unescaped = escaped_token:gsub("~1", "/"):gsub("~0", "~")
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5 return unescaped
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6 end
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7
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8 local function resolve_json_pointer(ref, path)
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9 local ptr_len = #path + 1
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10 for part, pos in path:gmatch("/([^/]*)()") do
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11 local token = unescape_token(part)
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12 if not (type(ref) == "table") then
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13 return nil
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14 end
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15 local idx = next(ref)
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16 local new_ref
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17
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18 if type(idx) == "string" then
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19 new_ref = ref[token]
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20 elseif m_type(idx) == "integer" then
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21 local i = tonumber(token)
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22 if token == "-" then
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23 i = #ref + 1
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24 end
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87c3d45208ef util.jsonpointer: Fix off-by-one in array resolution
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25 new_ref = ref[i + 1]
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26 else
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27 return nil, "invalid-table"
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28 end
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29
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30 if pos == ptr_len then
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31 return new_ref
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32 elseif type(new_ref) == "table" then
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33 ref = new_ref
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34 elseif not (type(ref) == "table") then
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35 return nil, "invalid-path"
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36 end
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37
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38 end
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39 return ref
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40 end
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41
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42 return { resolve = resolve_json_pointer }