Module:Protection banner

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Revision as of 06:47, 10 March 2014 by Mr. Stradivarius (talk) (tidy this up and comment it so it will be easier for others to understand)
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Documentation for this module may be created at Module:Protection banner/doc

-- This module implements {{pp-meta}} and its daughter templates such as
-- {{pp-dispute}}, {{pp-vandalism}} and {{pp-sock}}.

local categories = {
	-- The key strings follow this format:
	-- type, level, ns, reason, expiry
	['edit-autoconfirmed-user-all-all'] = 'Wikipedia semi-protected user and user talk pages',
	['edit-autoconfirmed-project-all-all'] = 'Semi-protected project pages',
	['edit-autoconfirmed-file-all-all'] = 'Semi-protected images',
	['edit-autoconfirmed-template-all-all'] = 'Wikipedia semi-protected templates',
	['edit-autoconfirmed-portal-all-all'] = 'Semi-protected portals',
	['edit-autoconfirmed-talk-all-all'] = 'Semi-protected talk pages',
	['edit-autoconfirmed-all-vandalism-all'] = 'Wikipedia pages semi-protected against vandalism',
	['edit-sysop-user-all-all'] = 'Wikipedia protected user and user talk pages',
	['edit-sysop-file-all-all'] = 'Protected images',
	['edit-sysop-project-all-all'] = 'Protected project pages',
	['edit-sysop-template-all-all'] = 'Wikipedia protected templates',
	['edit-sysop-talk-all-all'] = 'Protected talk pages',
	['edit-sysop-all-vandalism-all'] = 'Wikipedia pages protected against vandalism',
	['edit-autoconfirmed-all-dispute-all'] = 'Wikipedia pages semi-protected due to dispute',
	['edit-sysop-all-dispute-all'] = 'Wikipedia pages protected due to dispute',
	['move-sysop-all-dispute-all'] = 'Wikipedia pages move-protected due to dispute',
	['move-sysop-user-all-all'] = 'Wikipedia move-protected user and user talk pages',
	['move-sysop-project-all-all'] = 'Wikipedia move-protected project pages',
	['move-sysop-portal-all-all'] = 'Wikipedia move-protected portals',
	['move-sysop-all-vandalism-all'] = 'Wikipedia pages move-protected due to vandalism',
	['edit-autoconfirmed-template-all-all'] = 'Wikipedia semi-protected templates',
	['move-sysop-template-all-all'] = 'Wikipedia move-protected templates',
	['edit-all-template-all-all'] = 'Wikipedia protected templates',
	['move-sysop-portal-all-all'] = 'Wikipedia move-protected portals',
	['edit-autoconfirmed-all-sock-all'] = 'Wikipedia pages semi-protected from banned users',
	['edit-sysop-all-sock-all'] = 'Wikipedia pages protected from banned users',
	['edit-autoconfirmed-all-blp-temp'] = 'Wikipedia temporarily semi-protected biographies of living people',
	['edit-sysop-all-blp-temp'] = 'Wikipedia temporarily protected biographies of living people',
	['edit-autoconfirmed-all-blp-all'] = 'Wikipedia indefinitely semi-protected biographies of living people',
	['edit-sysop-all-blp-all'] = 'Wikipedia indefinitely protected biographies of living people',
	['edit-autoconfirmed-all-all-indef'] = 'Wikipedia indefinitely semi-protected pages',
	['edit-autoconfirmed-category-all-all'] = 'Wikipedia semi-protected categories',
	['edit-sysop-category-all-all'] = 'Wikipedia protected categories',
	['move-sysop-talk-all-all'] = 'Wikipedia move-protected talk pages',
	['move-sysop-all-all-indef'] = 'Wikipedia indefinitely move-protected pages',
	['edit-autoconfirmed-all-all-all'] = 'Wikipedia semi-protected pages',
	['move-sysop-all-all-all'] = 'Wikipedia move-protected pages',
	['pc-autoconfirmed-all-all-all'] = 'Wikipedia pending changes protected pages (level 1)',
	['pc-reviewer-all-all-all'] = 'Wikipedia pending changes protected pages (level 2)',
	['all-all-all-office-all'] = 'Wikipedia Office-protected pages',
	['all-all-all-all-all'] = 'Wikipedia protected pages',
}

local nskeys = {
	[2] = 'user',
	[3] = 'user',
	[4] = 'project',
	[6] = 'file',
	[10] = 'template',
	[12] = 'project',
	[14] = 'category',
	[100] = 'portal',
}

local reasonBehaviors = {
	vandalism = 'namespaceFirst',
	dispute = 'reasonFirst',
	blp = 'reasonFirst',
	sock = 'reasonFirst',
	office = 'reasonFirst',
}

--[[
-- Not currently used
local error_categories = {
	incorrect = 'Wikipedia pages with incorrect protection templates',
	no_expiry = 'Wikipedia protected pages without expiry',
	create = 'Wikipedia pages tagged as create-protected',
	template = 'Wikipedia template-protected pages other than templates and modules'
}
--]]

--------------------------------------------------------------------------------
-- Main functions
--------------------------------------------------------------------------------

-- Define often-used functions as local variables.
local tconcat = table.concat

local p = {}

function p.matchNamespace(ns)
	-- Matches a namespace number to a string that can be passed to the
	-- namespacep parameter of p.getCategoryName.
	if not ns or type(ns) ~= 'number' then
		return 'all'
	end
	local nskey = nskeys[ns]
	if not nskey and ns % 2 == 1 then
		nskey = 'talk'
	elseif not nskey then
		nskey = 'all'
	end
	return nskey
end

function p.getCategoryName(cats, protType, protLevel, namespace, reason, expiry)
	-- Gets a category name from the category table, given a combination of
	-- the protection type, the protection level, the namespace number, the
	-- reason for protection, and the expiry date.
	
	-- Preprocess parameters
	cats = cats or categories
	protType = protType or 'all'
	protLevel = protLevel or 'all'
	namespace = p.matchNamespace(namespace)
	reason = reason or 'all'
	if not expiry then
		expiry = 'all'
	elseif expiry ~= 'indef' then
		expiry = 'temp'
	end
	
	--[[
	-- Define the key table and the order to test it in.
	-- The idiosyncracies of the old template system have been distilled down to
	-- two basic behaviors - templates that prioritise matching the reason over
	-- matching the namespace, and templates that prioritise matching the
	-- namespace over matching the reason. In each case the function tries to
	-- match specific keys, and if there is no match, it proceeds to match
	-- increasingly generic keys, until eventually it will match the key
	-- "all-all-all-all-all".
	--]]
	local protectionProperties = {protType, protLevel, namespace, reason, expiry}
	local reasonBehavior = reasonBehaviors[reason]
	local attemptOrder 
	if reasonBehavior == 'namespaceFirst' then
		attemptOrder = {
			-- type, level, ns, reason, expiry
			-- true corresponds to the original protectionProperties key,
			-- and false corresponds to the key "all".
			{true, true, true, true, true},     -- 1
			{true, true, true, true, false},    -- 2
			{true, true, true, false, true},    -- 3
			{true, true, true, false, false},   -- 4
			{true, false, true, true, true},    -- 5
			{true, false, true, true, false},   -- 6
			{true, false, true, false, true},   -- 7
			{true, false, true, false, false},  -- 8
			{false, false, true, false, false}, -- 9
			{true, true, false, true, true},    -- 10
			{true, true, false, true, false},   -- 11
			{true, true, false, false, true},   -- 12
			{true, false, false, true, true},   -- 13
			{true, false, false, true, false},  -- 14
			{true, false, false, false, true},  -- 15
			{true, false, false, false, false}, -- 16
			{false, false, false, false, false} -- 17
		}
	elseif reasonBehavior == 'reasonFirst' or reason == 'all' then
		attemptOrder = {
			-- type, level, ns, reason, expiry
			{true, true, true, true, true},     -- 1
			{true, true, true, true, false},    -- 2
			{true, true, false, true, true},    -- 3
			{true, true, false, true, false},   -- 4
			{true, false, true, true, true},    -- 5
			{true, false, true, true, false},   -- 6
			{true, false, false, true, true},   -- 7
			{true, false, false, true, false},  -- 8
			{false, false, false, true, false}, -- 9
			{true, true, true, false, true},    -- 10
			{true, true, true, false, false},   -- 11
			{true, true, false, false, true},   -- 12
			{true, false, true, false, true},   -- 13
			{true, false, true, false, false},  -- 14
			{true, false, false, false, true},  -- 15
			{true, false, false, false, false}, -- 16
			{false, false, false, false, false} -- 17
		}
	else
		error(reason .. ' is not a valid reason')
	end
	
	-- Try successively generic matches until we run out of key combinations
	for i, t in ipairs(attemptOrder) do
		local key = {}
		for j, useProperty in ipairs(t) do
			if useProperty then
				key[j] = protectionProperties[j]
			else
				key[j] = 'all'
			end
		end
		key = tconcat(key, '-')
		mw.log(key) -- for debugging
		local attempt = cats[key]
		if attempt then
			return attempt
		end
	end
	error('No category match found; please define the category for key "all-all-all-all-all"')
end			

return p