prosody
902d25cd0557
util/jsonpointer.lua

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util/jsonpointer.lua @ 13554:902d25cd0557

mod_s2s: Limit size of outgoing stanza queue This queue is used to buffer stanzas while waiting for an outgoing s2s connection to be established. Limit it to prevent excessive memory usage. Default chosen to approximate how many average stanzas fits in the server_epoll default max_send_buffer_size of 32 MiB Returns a custom error instead of the default core.stanza_router "Communication with remote domains is not enabled" from is sent back, which does not describe what is happening here. Closes #1106
author Kim Alvefur <zash@zash.se>
date Sat, 09 Nov 2024 16:47:14 +0100
parent 12781:22066b02887f
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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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03e307952816 util.jsonpointer: Fix Lua <5.3 compat
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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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03e307952816 util.jsonpointer: Fix Lua <5.3 compat
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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 }