Mercurial > prosody-modules
view mod_mam/rsm.lib.lua @ 3503:882180b459a0
mod_pubsub_post: Restructure authentication and authorization (BC)
This deprecates the default "superuser" actor model and makes the
default equivalent to the previous "request.id".
A single actor and secret per node is supported because HTTP and
WebHooks don't normally include any authorization identity.
Allowing authentication bypass when no secret is given should be
relatively safe when the actor is unprivileged, as will be unless
explicitly configured otherwise.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sat, 30 Mar 2019 21:16:13 +0100 |
parents | 57ee26681561 |
children |
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local stanza = require"util.stanza".stanza; local tostring, tonumber = tostring, tonumber; local type = type; local pairs = pairs; local xmlns_rsm = 'http://jabber.org/protocol/rsm'; local element_parsers = {}; do local parsers = element_parsers; local function xs_int(st) return tonumber((st:get_text())); end local function xs_string(st) return st:get_text(); end parsers.after = xs_string; parsers.before = function(st) local text = st:get_text(); return text == "" or text; end; parsers.max = xs_int; parsers.index = xs_int; parsers.first = function(st) return { index = tonumber(st.attr.index); st:get_text() }; end; parsers.last = xs_string; parsers.count = xs_int; end local element_generators = setmetatable({ first = function(st, data) if type(data) == "table" then st:tag("first", { index = data.index }):text(data[1]):up(); else st:tag("first"):text(tostring(data)):up(); end end; before = function(st, data) if data == true then st:tag("before"):up(); else st:tag("before"):text(tostring(data)):up(); end end }, { __index = function(_, name) return function(st, data) st:tag(name):text(tostring(data)):up(); end end; }); local function parse(set) local rs = {}; for tag in set:childtags() do local name = tag.name; local parser = name and element_parsers[name]; if parser then rs[name] = parser(tag); end end return rs; end local function generate(t) local st = stanza("set", { xmlns = xmlns_rsm }); for k,v in pairs(t) do if element_parsers[k] then element_generators[k](st, v); end end return st; end local function get(st) local set = st:get_child("set", xmlns_rsm); if set and #set.tags > 0 then return parse(set); end end return { parse = parse, generate = generate, get = get };