Module:Protection banner

This module creates protection banners and padlock icons that are placed at the top of protected pages.

Usage

Most users will not need to use this module directly. For adding protection templates to pages you can use the {{pp}} template, or you may find it more convenient to use one of the more specific protection templates in the table below.

From wikitext

{{#invoke:Protection banner|main
| 1        = reason
| small    = yes/no
| action   = action
| date     = protection date
| user     = username
| section  = talk page section name
| category = no
}}

The #invoke syntax can be used for creating protection templates more specific than {{pp}}. For example, it is possible to create a protection template which always shows a padlock icon by using the code {{#invoke:Protection banner|main|small=yes}}. Pages which call this template will still be able to use other arguments, like action. However, this only works one level deep; a page calling a template which calls another template containing the above code will not automatically be able to use parameters like action.

Note: You should no longer specify the expiry, as it is automatically retrieved in all cases.

From Lua

First, load the module.

local mProtectionBanner = require('Module:Protection banner')

Then you can make protection banners by using the _main function.

mProtectionBanner._main(args, cfg, titleObj)

args is a table of arguments to pass to the module. For possible keys and values for this table, see the parameters section. The cfg and titleObj variables are intended only for testing; cfg specifies a customised config table to use instead of Module:Protection banner/config, and titleObj specifies a mw.title object to use instead of the current title. args, cfg and titleObj are all optional.

Parameters

All parameters are optional.

• 1 - the reason that the page was protected. If set, this must be one of the values listed in the reasons table.
• small - if set to "yes", "y", "1", or "true", a padlock icon is generated instead of a full protection banner.
• action - the protection action. Must be one of "edit" (for normal protection), "move" (for move-protection) or "autoreview" (for pending changes). The default value is "edit".
• date - the protection date. This must be valid input to the second parameter of the #time parser function. This argument has an effect for reasons that use the PROTECTIONDATE parameter in their configuration. As of July 2014, those were the "office" and "reset" reasons.
• user - the username of the user to generate links for. As of July 2014, this only has an effect when the "usertalk" reason is specified.
• section - the section name of the protected page's talk page where discussion is taking place. This works for most, but not all, values of reason.
• category - categories are suppressed if this is set to "no", "n", "0", or "false".

Reasons

The following table contains the available reasons, plus the actions for which they are available.

Reason	Action	Description
blp	edit	For pages protected to promote compliance with the biographies of living persons policy
dispute	edit	For pages protected due to editing disputes
dmca	edit	For pages protected by the Wikimedia Foundation due to Digital Millennium Copyright Act takedown requests
ecp	edit	For articles in topic areas authorized by ArbCom or meets the criteria for community use
mainpage	edit	For pages protected for being displayed on the Main Page
office	edit	For pages protected by the Wikimedia Foundation
reset	edit	For pages protected by the Wikimedia Foundation and "reset" to a bare-bones version
sock	edit	For pages protected due to sock puppetry
template	edit	For high-risk templates and Lua modules
usertalk	edit	For pages protected against disruptive edits by a particular user
vandalism	edit	For pages protected against vandalism
dispute	move	For pages protected against page moves due to disputes over the page title
vandalism	move	For pages protected against page-move vandalism

Errors

Below is a list of some of the common errors that this module can produce, and how to fix them.

Invalid protection date

This error is produced if you supply an |date= parameter value that is not recognised as a valid date by the #time parser function. If in doubt, you can just use a date in the format "dd Month YYYY", e.g. "28 May 2024". To see a full range of valid inputs, see the #time documentation (only the first parameter, the format string, may be specified).

Invalid action

This error is produced if you specify an invalid protection action. There are only three valid actions: edit (the default, for normal protection), move (for move-protection), and autoreview (for pending changes). This should only be possible if you are using a template that supports manually specifying the protection action, such as {{pp}}, or if you are using #invoke directly. If this is not the case, please leave a message on Module talk:Protection banner.

Reasons cannot contain the pipe character

This error is produced if you specify a reason using the |1= parameter that includes a pipe character ("|"). Please check that you are not entering the {{!}} template into this parameter by mistake. The pipe character is disallowed as the module uses it internally. A list of valid reasons can be seen in the reasons section.

Other errors

If you see an error other than the ones above, it is likely to either be a bug in the module or mistake in the configuration. Please post a message about it at Module talk:Protection banner.

Technical details

This module uses configuration data from Module:Protection banner/config. Most of the module's behaviour can be configured there, making it easily portable across different wikis and different languages.

General test cases for the module can be found at Module:Protection banner/testcases, and test cases specific to enwiki's config can be found at Module:Protection banner/config/testcases.

Bug reports and feature requests should be made on the module's talk page.

---

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

-- Initialise necessary modules.
require('Module:No globals')
local class = require('Module:Middleclass').class
local mArguments = require('Module:Arguments')
local mFileLink = require('Module:File link')
local mProtectionLevel = require('Module:Effective protection level')
local yesno = require('Module:Yesno')

--------------------------------------------------------------------------------
-- ProtectionStatus class
--------------------------------------------------------------------------------

local ProtectionStatus = class('ProtectionStatus')

function ProtectionStatus:initialize(args, titleObj)
	-- Set action
	do
		local actions = {
			create = true,
			edit = true,
			move = true,
			autoreview = true
		}
		if args.action and actions[args.action] then
			self._action = args.action
		else
			self._action = 'edit'
		end
	end

	-- Set level
	do
		local level = mProtectionLevel._main(self._action, titleObj)
		if level == 'accountcreator' then
			-- Lump titleblacklisted pages in with template-protected pages,
			-- since templateeditors can do both.
			level = 'templateeditor'
		end
		self._level = level or '*'
	end

	-- Set other params
	self._reason = args.reason
	self._expiry = args.expiry or 'indef'
	self._section = args.section
end

function ProtectionStatus:getAction()
	return self._action
end

function ProtectionStatus:getLevel()
	return self._level
end

function ProtectionStatus:getReason()
	return self._reason
end

function ProtectionStatus:getExpiry()
	return self._expiry
end

function ProtectionStatus:getSection()
	return self._section
end

--------------------------------------------------------------------------------
-- Config class
--------------------------------------------------------------------------------

local Config = class('Config')

function Config:initialize()
	self._cfg = mw.loadData('Module:Protection banner/config')
end

function Config:getBannerConfig(protectionStatusObj)
	local cfg = self._cfg
	local action = protectionStatusObj:getAction()
	local reason = protectionStatusObj:getReason()
	if cfg.banners[action][reason] then
		return cfg.banners[action][reason]
	else
		return cfg.defaultBanners[action]
	end
end

function Config:getConfigTable(key)
	local blacklist = {
		banners = true,
		defaultBanners = true
	}
	if not blacklist[key] then
		return self._cfg[key]
	else
		return nil
	end
end

function Config:getMessage(key)
	return self._cfg.msg[key]
end

--------------------------------------------------------------------------------
-- Blurb class
--------------------------------------------------------------------------------

local Blurb = class('Blurb')

function Blurb:initialize(configObj, protectionStatusObj, titleObj)
	self._configObj = configObj
	self._protectionStatusObj = protectionStatusObj
	self._bannerConfig = configObj:getBannerConfig(protectionStatusObj)
	self._titleObj = titleObj
end

function Blurb:_makePagetypeParameter()
	local pagetypes = self._configObj:getConfigTable('pagetypeNamespaces')
	local namespace = self._titleObj:getNamespace()
	return pagetypes[namespace] or pagetypes.default or 'page'
end

function Blurb:_substituteParameters(msg)
	if not self._params then
		local params, parameterFuncs = {}, {}
		setmetatable(params, {
			__index = function (t, k)
				local param
				if parameterFuncs[k] then
					param = parameterFuncs[k]()
				end
				param = param or ''
				params[k] = param
				return param
			end
		})
	
		parameterFuncs[1] = function ()
			-- Intro blurb
			local key
			local action = self._protectionStatusObj:getAction()
			local level = self._protectionStatusObj:getLevel()
			if action == 'edit' and level == 'autoconfirmed' then
				key = 'reason-text-semi'
			elseif action == 'move' then
				key = 'reason-text-move'
			elseif action == 'create' then
				key = 'reason-text-create'
			else
				key = 'reason-text-default'
			end
			local msg = self._configObj:getMessage(key)
			return self:_substituteParameters(msg)
		end
		
		parameterFuncs[2] = function ()
			-- "until" or "or until" depending on the expiry
			local expiry = self._protectionStatusObj:getExpiry()
			if expiry then
				return 'or until'
			else
				return 'until'
			end
		end
		
		parameterFuncs[3] = function ()
			-- "disputes", with or without a section link
			local section = self._protectionStatusObj:getSection()
			local disputes = self.configObj:getMessage('dispute-section-link-display')
			if section then
				return string.format(
					'[[%s:%s#%s|%s]]',
					mw.site.namespaces[self._titleObj.namespace].talk.name,
					self._titleObj.text,
					section,
					disputes
				)
			else
				return disputes
			end
		end

		self._params = params
	end
	return mw.message.newRawMessage(msg):params(self._params):plain()
end

--------------------------------------------------------------------------------
-- Image class
--------------------------------------------------------------------------------

local Image = class('Image')

function Image:initialize(configObj, protectionStatusObj, titleObj)
	self._configObj = configObj
	self._protectionStatusObj = protectionStatusObj
	self._titleObj = titleObj
end

function Image:setFilename(filename)
	if filename then
		self._filename = filename
	else
		local images, action, level, reason, namespace
		do
			local configObj = self._configObj
			local protectionStatusObj = self._protectionStatusObj
			local titleObj = self._titleObj
			images = configObj:getConfigTable('images')
			action = protectionStatusObj:getAction()
			level = protectionStatusObj:getLevel()
			reason = protectionStatusObj:getReason()
			namespace = titleObj:getNamespace()
		end

		local image
		if reason == 'office' or reason == 'reset' then
			image = images.office
		elseif namespace == 10 or namespace == 828 then
			-- We are in the template or module namespaces.
			if level == 'templateeditor' then
				image = images.template
			elseif level == 'sysop' then
				image = images.indef
			end
		elseif action == 'create' then
			image = images.create
		elseif action == 'move'
			and (
				level == 'templateeditor'
				or level == 'sysop'
			)
		then
			image = images.move
		elseif action == 'edit' then
			if level == 'sysop' then
				image = images.full
			elseif level == 'autoconfirmed' then
				image = images.semi
			end
		elseif action == 'autoreview' then
			if level == 'autoconfirmed' then
				image = images.pc1
			elseif level == 'reviewer' then
				image = images.pc2
			end
		end
		self._filename = image
	end
end

function Image:setWidth(width)
	self._width = width
end

function Image:setAlt(alt)
	self._alt = alt
end

function Image:setLink(link)
	self._link = link
end

function Image:setCaption(caption)
	self._caption = caption
end

function Image:export()
	return mFileLink.new(self._filename or 'Transparent.gif')
		:width(self._width or 20)
		:alt(self._alt)
		:link(self._link)
		:caption(self._caption)
		:render()
end

--------------------------------------------------------------------------------
-- BannerTemplate class
--------------------------------------------------------------------------------

local BannerTemplate = class('BannerTemplate')

function BannerTemplate:initialize()
end

function BannerTemplate:render()
end

--------------------------------------------------------------------------------
-- Banner class
--------------------------------------------------------------------------------

local Banner = BannerTemplate:subclass('Banner')

--------------------------------------------------------------------------------
-- Padlock class
--------------------------------------------------------------------------------

local Padlock = BannerTemplate:subclass('Padlock')

--------------------------------------------------------------------------------
-- Category class
--------------------------------------------------------------------------------

local Category = class('Category')

function Category:initialize()
end

function Category:setName(name)
	self._name = name
end

function Category:export()
	if self._categoryName then
		return string.format(
			'[[%s:%s]]',
			mw.site.namespaces[14].name,
			self._categoryName
		)
	else
		return ''
	end
end

--------------------------------------------------------------------------------
-- ProtectionCategory class
--------------------------------------------------------------------------------

local ProtectionCategory = Category:subclass('ProtectionCategory')

function ProtectionCategory:setName(
		name,
		configObj,
		protectionStatusObj,
		namespace
	)
	--[[
	-- Sets the protection category. If a category name is not provided, this
	-- method gets a category name from the module config, given a combination
	-- of the protection type, the protection level, the namespace number, the
	-- reason for protection, and the expiry date.
	--]]
	
	-- If a name was provided, use that.
	if name then
		Category.setName(self, name)
	end
	
	-- Get the namespace category key from the namespace number.
	local nskey
	do
		local categoryNamespaces = configObj:getConfigTable('categoryNamespaces')
		if not namespace or type(namespace) ~= 'number' then
			nskey = nil
		else
			nskey = categoryNamespaces[ns]
			if not nskey and ns % 2 == 1 then
					nskey = 'talk'
			end
		end
	end
 
	--[[
	-- Define the properties table. Each property is a table containing the
	-- canonical order that the property is tested in, the position the
	-- property has in the category key strings, and the property value itself.
	--]]
	local properties = {
		expiry = {order = 1, keypos = 5, val = protectionStatusObj:getExpiry()},
		namespace = {order = 2, keypos = 3, val = nskey},
		reason = {order = 3, keypos = 4, val = protectionStatusObj:getReason()},
		level = {order = 4, keypos = 2, val = protectionStatusObj:getLevel()},
		action = {order = 5, keypos = 1, val = protectionStatusObj:getAction()}
	}
 
	--[[
	-- Apply the category order configuration, if any. The configuration value
	-- will be a property string, e.g. 'reason', 'namespace', etc. The property
	-- corresponding to that string is tested last (i.e. it is the most
	-- important, because it keeps its specified value the longest) and the
	-- other properties are tested in the canonical order. If no configuration
	-- value is specified then the canonical order is used.
	--]]
	local configOrder = {}
	do
		local bannerConfig = configObj:getBannerConfig(protectionStatusObj)
		local categoryOrder = bannerConfig.categoryOrder
		for propertiesKey, t in pairs(properties) do
			configOrder[t.order] = t
		end
		if categoryOrder then
			local property = properties[categoryOrder]
			if not property then
				local msg = '"'
					.. categoryOrder
					.. '" is not a valid value of cfg.reasons.'
					.. reason
					.. '.categoryOrder'
				error(msg)
			end
			table.insert(configOrder, table.remove(configOrder, property.order))
		end
	end
 
	--[[
	-- Define the attempt order. Properties with no value defined are moved
	-- to the end, where they will later be given the value "all". This is
	-- to cut down on the number of table lookups in the cats table, which
	-- grows exponentially with the number of properties with valid values.
	-- We keep track of the number of active properties with the noActive
	-- parameter.
	--]]
	local noActive, attemptOrder
	do
		local active, inactive = {}, {}
		for i, t in ipairs(configOrder) do
			if t.val then
				active[#active + 1] = t
			else
				inactive[#inactive + 1] = t
			end
		end
		noActive = #active
		attemptOrder = active
		for i, t in ipairs(inactive) do
			attemptOrder[#attemptOrder + 1] = t
		end
	end
 
	--[[
	-- Check increasingly generic key combinations until we find a match.
	-- If a specific category exists for the combination of properties
	-- we are given, that match will be found first. If not, we keep
	-- trying different key combinations until we match using the key
	-- "all-all-all-all-all".
	--
	-- To generate the keys, we index the property subtables using a
	-- binary matrix with indexes i and j. j is only calculated up to
	-- the number of active properties. For example, if there were three
	-- active properties, the matrix would look like this, with 0
	-- corresponding to the string "all", and 1 corresponding to the
	-- val field in the property table:
	-- 
	--   j 1  2  3
	-- i  
	-- 1   1  1  1
	-- 2   0  1  1
	-- 3   1  0  1
	-- 4   0  0  1
	-- 5   1  1  0
	-- 6   0  1  0
	-- 7   1  0  0
	-- 8   0  0  0
	-- 
	-- Values of j higher than the number of active properties are set
	-- to the string "all".
	--
	-- A key for the category table is constructed for each value of i.
	-- The correct position of the value in the key is determined by the
	-- pos field in the property table.
	--]]
	local cats = configObj:getConfigTable('categories')
	local cat
	for i = 1, 2^noActive do
		local key = {}
		for j, t in ipairs(attemptOrder) do
			if j > noActive then
				key[t.keypos] = 'all'
			else
				local quotient = i / 2 ^ (j - 1)
				quotient = math.ceil(quotient)
				if quotient % 2 == 1 then
					key[t.keypos] = t.val
				else
					key[t.keypos] = 'all'
				end
			end
		end
		key = table.concat(key, '-')
		local attempt = cats[key]
		if attempt then
			cat = attempt
			break
		end
	end
	if cat then
		Category.setName(self, cat)
	else
		error(
			'No category match found;'
			.. ' please define the category for key "all-all-all-all-all"'
		)
	end
end

--------------------------------------------------------------------------------
-- ExpiryCategory class
--------------------------------------------------------------------------------

local ExpiryCategory = Category:subclass('ExpiryCategory')

--------------------------------------------------------------------------------
-- ErrorCategory class
--------------------------------------------------------------------------------

local ErrorCategory = Category:subclass('ErrorCategory')

--------------------------------------------------------------------------------
-- ProtectionBanner class
--------------------------------------------------------------------------------

local ProtectionBanner = {}

function ProtectionBanner.exportToWiki(frame, title)
	local args = mArguments.getArgs(frame)
	return ProtectionBanner.exportToLua(args, title)
end

function ProtectionBanner.exportToLua(args, title)
	title = title or mw.title.getCurrentTitle()

	-- Get data objects
	local theProtectionStatus = ProtectionStatus:new(args, title)
	local theConfig = Config:new()

	local ret = {}

	-- Render the banner
	
	-- Render the categories

	return table.concat(ret)	
end

function ProtectionBanner._exportClasses()
	-- This is used to export the classes for testing purposes.
	return {
		ProtectionStatus = ProtectionStatus,
		Config = Config,
		Image = Image,
		Blurb = Blurb,
		BannerTemplate = BannerTemplate,
		Banner = Banner,
		Padlock = Padlock,
		Category = Category,
		ProtectionCategory = ProtectionCategory,
		ErrorCategory = ErrorCategory,
		ExpiryCategory = ExpiryCategory,
	}
end

return ProtectionBanner