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util/filters.lua @ 12579:ca6a43fe0231 0.12
util.jsonschema: Fix validation to not assume presence of "type" field
MattJ reported a curious issue where validation did not work as
expected. Primarily that the "type" field was expected to be mandatory,
and thus leaving it out would result in no checks being performed.
This was likely caused by misreading during initial development.
Spent some time testing against
https://github.com/json-schema-org/JSON-Schema-Test-Suite.git and
discovered a multitude of issues, far too many to bother splitting into
separate commits.
More than half of them fail. Many because of features not implemented,
which have been marked NYI. For example, some require deep comparisons
e.g. when objects or arrays are present in enums fields.
Some because of quirks with how Lua differs from JavaScript, e.g. no
distinct array or object types. Tests involving fractional floating
point numbers. We're definitely not going to follow references to remote
resources. Or deal with UTF-16 sillyness. One test asserted that 1.0 is
an integer, where Lua 5.3+ will disagree.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Fri, 08 Jul 2022 14:38:23 +0200 |
parent | 8555:4f0f5b49bb03 |
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-- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- local t_insert, t_remove = table.insert, table.remove; local _ENV = nil; -- luacheck: std none local new_filter_hooks = {}; local function initialize(session) if not session.filters then local filters = {}; session.filters = filters; function session.filter(type, data) local filter_list = filters[type]; if filter_list then for i = 1, #filter_list do data = filter_list[i](data, session); if data == nil then break; end end end return data; end end for i=1,#new_filter_hooks do new_filter_hooks[i](session); end return session.filter; end local function add_filter(session, type, callback, priority) if not session.filters then initialize(session); end local filter_list = session.filters[type]; if not filter_list then filter_list = {}; session.filters[type] = filter_list; elseif filter_list[callback] then return; -- Filter already added end priority = priority or 0; local i = 0; repeat i = i + 1; until not filter_list[i] or filter_list[filter_list[i]] < priority; t_insert(filter_list, i, callback); filter_list[callback] = priority; end local function remove_filter(session, type, callback) if not session.filters then return; end local filter_list = session.filters[type]; if filter_list and filter_list[callback] then for i=1, #filter_list do if filter_list[i] == callback then t_remove(filter_list, i); filter_list[callback] = nil; return true; end end end end local function add_filter_hook(callback) t_insert(new_filter_hooks, callback); end local function remove_filter_hook(callback) for i=1,#new_filter_hooks do if new_filter_hooks[i] == callback then t_remove(new_filter_hooks, i); end end end return { initialize = initialize; add_filter = add_filter; remove_filter = remove_filter; add_filter_hook = add_filter_hook; remove_filter_hook = remove_filter_hook; };