Module:Lockbox: Difference between revisions

Revision as of 09:43, 2 August 2014

Latest revision as of 06:48, 10 November 2024

(18 intermediate revisions by 4 users not shown)

Line 1:

local export = {}

-- XXX: OUTRAGEOUS ABUSE OF SCRIBUNTO API

-- Generates a transclusion without incrementing the "expensive function" count

local generate_transclusion

do

local mock_title = mw.title.new(mw.title.getCurrentTitle().id)

local getContent = mock_title.getContent

function generate_transclusion(title)

local full_text = type(title) == 'table' and title.fullText or title

rawset(mock_title, 'fullText', full_text)

getContent(mock_title)

end

end

local function make_wikitext_warning(msg)

return string.format('<strong class="error">Warning: %s.</strong>', msg)

end

function export.lock(frame)

local outputwarnings, transclusion_list = {}, {}

-- checkCheck if the currenttranscluding page is cascade-protected.

--

-- XXX: unfortunately there is no other way; title.protectionLevels does not report cascading protection status

-- Only pages transcluded from a cascade-protected page appear in

mw.title.getCurrentTitle():getContent() -- self-transclude; see [[mw:Extension:Scribunto/Lua reference manual#Title objects]]

if-- frame:preprocess "{{CASCADINGSOURCES}}", ==so normally we would not be able to tell if ""the thenlockbox

-- itself is cascade-protected. To work around this, we generate a

table.insert(output, '<strong class="warning">Warning: this page (' .. mw.title.getCurrentTitle().fullText .. ') is not cascade-protected.</strong>')

-- transclusion from the lockbox to itself, so that it will have an entry

end

-- for itself in CASCADINGSOURCES.

--

-- We cannot generate this transclusion using the title object for the

-- parent title (the lockbox), as if the lockbox is transcluded on another

-- page, we will generate a transclusion *from* the lockbox *to* that page

-- as well, and the page will be cascade-protected. Instead we generate it

-- with the title object for the current title.

--

-- When the current title is the parent title (i.e. we are rendering the

-- lockbox page), this creates the required entry in the link table in the

-- database. When the current title is the grandparent title or up (i.e. we

-- are rendering a page transcluding the lockbox), transclusions are only

-- created from the page itself, not from the lockbox, and it is not

-- cascade-protected.

--

-- This creates an extaneous self-transclusion for all pages using the

-- module, but we treat that as a necessary evil.

--[[ This entire block no longer works following https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Scribunto/+/1074581

-- transclude everything, and discard the output

do

for _, item in ipairs(frame.args) do

mw.title.getCurrentTitle():getContent() -- Generate self-transclusion

item = mw.text.trim(item)

local parent_title = frame:getParent():getTitle()

if not mw.title.new(parent_title).cascadingProtection.sources[1] then

-- getContent() on a title object might be cleaner, but getContent() and title objects

warnings[#warnings + 1] = make_wikitext_warning(string.format(

-- are considered "expensive". even though they are probably cheaper than actual transclusion

'the page "%s" is not cascade-protected',

frame:expandTemplate { title = item }

parent_title

))

end

end

--]]

-- Generate transclusions to the templates, and build the output list.

if not item:match(":") then

for i, item in ipairs(frame.args) do

item = "Template:" .. item

item = mw.text.trim(item)

elseif item:match("^File:") or item:match("^Image:") then

local title = mw.title.new(item)

-- XXX: leaving this separate just in case it needs special handling

if title then

item = ":" .. item

local ns = title.namespace

elseif item:match("^Category:") then

local prefixed_text = title.prefixedText

item = ":" .. item

if ns == 0 then

-- The item had no namespace text. If the item starts with a

-- colon, assume it is a mainspace page. Otherwise, assume it is

-- a template.

if item:sub(1, 1) == ':' then

generate_transclusion(title)

table.insert(transclusion_list, '* [[' .. prefixed_text .. ']]')

else

generate_transclusion('Template:' .. prefixed_text)

table.insert(transclusion_list, '* [[Template:' .. prefixed_text .. ']]')

end

elseif ns == 6 or ns == 14 then -- File or Category namespace

generate_transclusion(title)

table.insert(transclusion_list, '* [[:' .. prefixed_text .. ']]')

else

generate_transclusion(title)

table.insert(transclusion_list, '* [[' .. prefixed_text .. ']]')

end

else

warnings[#warnings + 1] = make_wikitext_warning(string.format(

'invalid title "%s" in argument #%d',

item,

i

))

end

table.insert(output, ('* [[%s]]'):format(item))

end

if frame.args.silent then

return ""''

else

-- If there were any warnings, show them at the top. Then show the list

return table.concat(output, "\n")

-- of transcluded pages.

local ret = ''

if #warnings > 0 then

if #warnings > 1 then

for i, warning in ipairs(warnings) do

warnings[i] = '* ' .. warning

end

end

ret = ret .. table.concat(warnings, '\n') .. '\n\n'

end

return ret .. table.concat(transclusion_list, '\n')

end

end