Module:UserLinks
Documentation for this module may be created at Module:UserLinks/doc
--------------------------------------------------------------------------------
-- UserLinks --
-- This module creates a list of links about a given user. It can be used on --
-- its own or from a template. See the /doc page for more documentation. --
--------------------------------------------------------------------------------
-- Require necessary modules
local yesno = require('Module:Yesno')
-- Lazily initialise modules that we might or might not need
local mExtra -- [[Module:UserLinks/extra]]
local mArguments -- [[Module:Arguments]]
local mToolbar -- [[Module:Toolbar]]
local mCategoryHandler -- [[Module:Category handler]]
local mTableTools -- [[Module:TableTools]]
local interwikiTable -- [[Module:InterwikiTable]], loaded with mw.loadData
-- Load shared helper functions
local mShared = require('Module:UserLinks/shared')
local raiseError = mShared.raiseError
local maybeLoadModule = mShared.maybeLoadModule
local makeWikitextError = mShared.makeWikitextError
local makeWikilink = mShared.makeWikilink
local makeUrlLink = mShared.makeUrlLink
local makeFullUrlLink = mShared.makeFullUrlLink
local message = mShared.message
local p = {}
--------------------------------------------------------------------------------
-- Link table
--------------------------------------------------------------------------------
function p.getLinks(snippets)
--[=[
-- Get a table of links that can be indexed with link codes. The table
-- returned is blank, but links are added to it on demand when it is
-- indexed. This is made possible by the metatable and by the various link
-- functions, some of which are defined here, and some of which are defined
-- at [[Module:UserLinks/extra]].
--]=]
local links, linkFunctions = {}, {}
----------------------------------------------------------------------------
-- Link functions
--
-- The following functions make the links from the link codes and the user
-- data snippets. New link functions should be added below the existing
-- functions.
--
-- For documentation on how to add new link functions, please see
-- [[Module:UserLinks#Adding new links]].
----------------------------------------------------------------------------
function linkFunctions.u(snippets)
-- User page
return makeWikilink(
snippets.interwiki,
2,
snippets.username,
snippets.username
)
end
function linkFunctions.t(snippets)
-- User talk page
return makeWikilink(
snippets.interwiki,
3,
snippets.username,
message('display-talk')
)
end
function linkFunctions.c(snippets)
-- Contributions
return makeWikilink(
snippets.interwiki,
-1,
'Contributions/' .. snippets.username,
message('display-contributions')
)
end
function linkFunctions.ct(snippets)
-- Edit count
return makeUrlLink(
{
host = 'tools.wmflabs.org',
path = '/supercount/index.php',
query = {
user = snippets.username,
project = snippets.toolLang .. '.' .. snippets.projectLong
}
},
message('display-count')
)
end
function linkFunctions.m(snippets)
-- Page moves
return makeWikilink(
snippets.interwiki,
-1,
'Log/move/' .. snippets.username,
message('display-moves')
)
end
function linkFunctions.l(snippets)
-- Logs
return makeWikilink(
snippets.interwiki,
-1,
'Log/' .. snippets.username,
message('display-logs')
)
end
function linkFunctions.bl(snippets)
-- Block log
return makeFullUrlLink(
snippets.interwiki,
-1,
'Log/block',
{page = 'User:' .. snippets.username},
message('display-blocklog')
)
end
function linkFunctions.bls(snippets)
-- Blocks
return makeWikilink(
snippets.interwiki,
-1,
'Log/block/' .. snippets.username,
message('display-blocks')
)
end
function linkFunctions.bu(snippets)
-- Block user
return makeWikilink(
snippets.interwiki,
-1,
'Block/' .. snippets.username,
message('display-blockuser')
)
end
function linkFunctions.ca(snippets)
-- Central auth
return makeWikilink(
snippets.interwiki,
-1,
'CentralAuth/' .. snippets.username,
message('display-centralauth')
)
end
function linkFunctions.dc(snippets)
-- Deleted contribs
return makeWikilink(
snippets.interwiki,
-1,
'DeletedContributions/' .. snippets.username,
message('display-deletedcontributions')
)
end
function linkFunctions.e(snippets)
-- Email
return makeWikilink(
snippets.interwiki,
-1,
'EmailUser/' .. snippets.username,
message('display-email')
)
end
function linkFunctions.es(snippets)
-- Edit summaries
return makeUrlLink(
{
host = 'tools.wmflabs.org',
path = '/xtools/editsummary/index.php',
query = {
name = snippets.username,
lang = snippets.toolLang,
wiki = snippets.projectLong
}
},
message('display-editsummaries')
)
end
function linkFunctions.del(snippets)
-- Deletions
return makeWikilink(
snippets.interwiki,
-1,
'Log/delete/' .. snippets.username,
message('display-deletions')
)
end
function linkFunctions.lu(snippets)
-- List user
return makeFullUrlLink(
snippets.interwiki,
-1,
'ListUsers',
{limit = 1, username = snippets.username},
message('display-listuser')
)
end
function linkFunctions.sul(snippets)
-- SUL
return makeWikilink(
nil,
nil,
'sulutil:' .. snippets.username,
message('display-sul')
)
end
function linkFunctions.tl(snippets)
-- Target logs
return makeFullUrlLink(
snippets.interwiki,
-1,
'Log',
{page = mw.site.namespaces[2].name .. ':' .. snippets.username},
message('display-targetlogs')
)
end
function linkFunctions.efl(snippets)
-- Edit filter log
return makeFullUrlLink(
snippets.interwiki,
-1,
'AbuseLog',
{wpSearchUser = snippets.username},
message('display-abuselog')
)
end
function linkFunctions.pr(snippets)
-- Protections
return makeWikilink(
snippets.interwiki,
-1,
'Log/protect/' .. snippets.username,
message('display-protections')
)
end
function linkFunctions.rl(snippets)
-- User rights
return makeWikilink(
snippets.interwiki,
-1,
'Log/rights/' .. snippets.username,
message('display-rights')
)
end
function linkFunctions.ren(snippets)
-- Renames
return makeWikilink(
snippets.interwiki,
-1,
'Log/renameuser/' .. snippets.username,
message('display-renames')
)
end
function linkFunctions.rfa(snippets)
-- Requests for adminship
return makeWikilink(
nil,
-1,
'PrefixIndex/' .. message('page-rfa') .. '/' .. snippets.username,
message('display-rfa')
)
end
function linkFunctions.api(snippets)
-- API user data
return makeUrlLink(
{
host = snippets.fullDomain,
path = '/w/api.php',
query = {
action = 'query',
list = 'users',
usprop = 'groups|editcount',
ususers = snippets.username
}
},
message('display-api')
)
end
function linkFunctions.up(snippets)
-- Uploads
return makeWikilink(
snippets.interwiki,
-1,
'ListFiles/' .. snippets.username,
message('display-uploads')
)
end
----------------------------------------------------------------------------
-- End of link functions
----------------------------------------------------------------------------
-- Define the metatable that memoizes the link functions, and fetches link
-- functions from [[Module:UserLinks/extra]] if necessary.
-- Lazily initialise the extraLinkFunctions table. We only want to load
-- [[Module:UserLinks/extra]] as necessary, so it has a low transclusion
-- count.
local extraLinkFunctions
-- Define functions for shared code in the metatable.
local function validateCode(code)
-- Checks whether code is a valid link code - i.e. checks that it is a
-- string and that it is not the blank string. Returns the code if
-- the check passes, and nil if not.
if type(code) == 'string' and code ~= '' then
return code
else
return nil
end
end
local function getExtraLinkFunctions()
-- Loads the table of extra link functions from the /extra module.
-- If there is a problem with loading it, return false. We use the
-- distinction between false and nil to record whether we have already
-- tried to load it.
if extraLinkFunctions ~= nil then
return extraLinkFunctions
end
if mExtra == nil then
-- If loading the module fails, maybeLoadModule returns false.
-- Here we use the distinction between false and nil to record
-- whether we have already tried to load the /extra module.
mExtra = maybeLoadModule('Module:UserLinks/extra')
end
if type(mExtra) == 'table'
and type(mExtra.linkFunctions) == 'table'
then
extraLinkFunctions = mExtra.linkFunctions
else
extraLinkFunctions = false
end
return extraLinkFunctions
end
local function memoizeExtraLink(code, func)
local success, link = pcall(func, snippets)
if success and type(link) == 'string' then
links[code] = link
return link
end
return nil
end
-- Define the metatable.
setmetatable(links, {
__index = function (t, key)
local code = validateCode(key)
if not code then
raiseError(
message('error-malformedlinkcode'),
message('error-malformedlinkcode-section')
)
end
local linkFunction = linkFunctions[code]
local link
if linkFunction then
link = linkFunction(snippets)
links[code] = link
else
extraLinkFunctions = getExtraLinkFunctions()
if extraLinkFunctions then
local extraLinkFunction = extraLinkFunctions[code]
if type(extraLinkFunction) == 'function' then
link = memoizeExtraLink(code, extraLinkFunction)
end
end
end
if link then
return link
else
raiseError(
message('error-invalidlinkcode', code),
message('error-invalidlinkcode-section')
)
end
end,
__pairs = function ()
extraLinkFunctions = getExtraLinkFunctions()
if extraLinkFunctions then
for code, func in pairs(extraLinkFunctions) do
if validateCode(code) and type(func) == 'function' then
memoizeExtraLink(code, func)
end
end
end
-- Allow built-in functions to overwrite extra functions.
for code, func in pairs(linkFunctions) do
local link = func(snippets)
links[code] = link
end
return function (t, key)
return next(links, key)
end
end
})
return links
end
--------------------------------------------------------------------------------
-- User data snippets
--------------------------------------------------------------------------------
function p.getSnippets(args)
--[=[
-- This function gets user data snippets from the arguments, and from
-- [[Module:InterwikiTable]]. The data is loaded as necessary and memoized
-- in the snippets table for performance.
--
-- Snippets default to the blank string, '', so they can be used in
-- concatenation operations without coders having to worry about raising
-- errors. Because of this, the local functions snippetExists and
-- getSnippet have been written to aid people writing new snippets. These
-- functions treat the blank string as false. It is not necessary to return
-- the blank string from a snippet function, as nil and false values are
-- automatically converted into the blank string by the metatable.
--
-- If you add a new snippet, please document it at
-- [[Module:UserLinks#Adding new links]].
--]=]
local snippets, snippetFunctions = {}, {}
setmetatable(snippets, {
__index = function (t, key)
local snippetFunction = snippetFunctions[key]
if snippetFunction then
snippets[key] = snippetFunction() or ''
return snippets[key]
else
raiseError(
message('error-nosnippet', key),
message('error-nosnippet-section')
)
end
end
})
-- Define helper functions for writting the snippet functions.
local function snippetExists(key)
-- We have set the metatable up to make snippets default to '', so we
-- don't have to test for false or nil.
return snippets[key] ~= ''
end
local function getSnippet(key)
local ret = snippets[key]
if ret == '' then
return nil
else
return ret
end
end
-- Start snippet functions.
function snippetFunctions.username()
-- The username.
local username = args.user or args.User
return username or raiseError(
message('error-nousername'),
message('error-nousername-section')
)
end
function snippetFunctions.usernameHtml()
-- The username html-encoded. Spaces are encoded as pluses.
return mw.uri.encode(snippets.username)
end
function snippetFunctions.project()
-- The project name.
-- Also does the work for snippetFunctions.interwikiTableKey, and adds
-- the project value to snippets.lang if it is a valid language code.
local project = args.Project or args.project
if not project then
return nil
end
local projectValidated, interwikiTableKey = p.validateProjectCode(project)
if not projectValidated then
if mw.language.isKnownLanguageTag(project) then
if not snippetExists('lang') then
snippets.lang = project
end
else
raiseError(
message('error-invalidproject', project),
message('error-invalidproject-section')
)
end
end
snippets.interwikiTableKey = interwikiTableKey
return project
end
function snippetFunctions.interwikiTableKey()
-- The key for the project in Module:InterwikiTable.
-- Relies on snippetFunctions.project to do the real work.
local temp = snippets.project -- required; puts key in snippets table
return rawget(snippets, 'interwikiTableKey')
end
function snippetFunctions.toolProject()
-- The short project code for use with toolserver or labs. It is always
-- present, even if the "project" argument is absent. The default value
-- is the "snippet-project-default" message.
local project = getSnippet('project')
if not project then
return message('snippet-project-default')
else
return project
end
end
function snippetFunctions.projectLong()
-- The long form of the project name, e.g. "wikipedia" or "wikibooks".
local key = getSnippet('interwikiTableKey')
if not key then
return message('snippet-projectlong-default')
end
interwikiTable = interwikiTable or mw.loadData('Module:InterwikiTable')
local prefixes = interwikiTable[key].iw_prefix
-- Using prefixes[2] is a bit of a hack, but should find the long name
-- most of the time.
return prefixes[2] or prefixes[1]
end
function snippetFunctions.lang()
-- The language code.
local lang = args.lang or args.Lang
if not lang then
return nil
end
if mw.language.isKnownLanguageTag(lang) then
return lang
else
raiseError(
message('error-invalidlanguage', lang),
message('error-invalidlanguage-section')
)
end
end
function snippetFunctions.toolLang()
-- The language code for use with toolserver or labs tools. It is always
-- present, even if the "lang" argument is absent. The default value is
-- the "snippet-lang-default" message.
return getSnippet('lang') or message('snippet-lang-default')
end
function snippetFunctions.interwiki()
-- The interwiki prefix, consisting of the project and language values,
-- separated by colons, e.g. ":wikt:es:".
local project = getSnippet('project')
local lang = getSnippet('lang')
if not project and not lang then
return nil
end
local ret = {}
ret[#ret + 1] = project
ret[#ret + 1] = lang
return table.concat(ret, ':')
end
function snippetFunctions.fullDomain()
-- The full domain name of the site, e.g. www.mediawiki.org,
-- en.wikpedia.org, or ja.wikibooks.org.
local fullDomain
local lang = getSnippet('toolLang')
local key = getSnippet('interwikiTableKey')
if key then
interwikiTable = interwikiTable or mw.loadData('Module:InterwikiTable')
local domain = interwikiTable[key].domain
local takesLangPrefix = interwikiTable[key].takes_lang_prefix
if takesLangPrefix then
fullDomain = lang .. '.' .. domain
else
fullDomain = domain
end
else
fullDomain = lang .. '.wikipedia.org'
end
return fullDomain
end
-- End snippet functions. If you add a new snippet function, please
-- document it at [[Module:UserLinks#Adding new links]].
return snippets
end
function p.validateProjectCode(s)
-- Validates a project code, by seeing whether it is present in
-- [[Module:InterwikiTable]]. If it is present, returns the code and the
-- InterwikiTable key for the corresponding site. If not present,
-- returns nil for both.
interwikiTable = interwikiTable or mw.loadData('Module:InterwikiTable')
for key, t in pairs(interwikiTable) do
for i, prefix in ipairs(t.iw_prefix) do
if s == prefix then
return s, key
end
end
end
return nil, nil
end
--------------------------------------------------------------------------------
-- Main functions
--------------------------------------------------------------------------------
local function makeInvokeFunction(funcName)
-- Makes a function that can be accessed from #invoke. This is only required
-- for functions that need to access arguments.
return function (frame)
mArguments = require('Module:Arguments')
local args = mArguments.getArgs(frame)
return p[funcName](args)
end
end
p.main = makeInvokeFunction('_main')
function p._main(args)
-- The main function. This is the one called from [[Template:User-multi]],
-- via p.main.
local options = p.getOptions(args)
local snippets = p.getSnippets(args)
local codes = p.getCodes(args)
local links = p.getLinks(snippets)
-- Overload the built-in Lua error function to generate wikitext errors
-- meant for end users to see. This makes things harder to debug when
-- real errors occur, but it is the only realistic way to show wikitext
-- errors and and still have sane code when using metatables, etc.
local success, result = pcall(p.export, codes, links, options)
if success then
return result
else
return makeWikitextError(result, options.isDemo)
end
end
function p.getOptions(args)
-- Gets the options from the args table, so that we don't have to pass
-- around the whole args table all the time.
local options = {}
options.isDemo = yesno(args.demo) or false
options.toolbarStyle = yesno(args.small) and 'font-size: 90%;' or nil
options.sup = yesno(args.sup, true)
options.separator = args.separator
options.span = args.span
return options
end
function p.getCodes(args)
-- Gets the link codes from the arguments. The codes aren't validated
-- at this point.
mTableTools = maybeLoadModule('Module:TableTools')
local codes
if mTableTools then
codes = mTableTools.compressSparseArray(args)
else
codes = {}
for i, code in ipairs(args) do
codes[i] = code
end
end
return codes
end
function p.export(codes, links, options)
-- Make the user link.
local userLink = links.u
-- If we weren't passed any link codes, just return the user link.
if #codes < 1 then
return userLink
end
-- Make the toolbar.
mToolbar = require('Module:Toolbar')
local toolbarArgs = {}
for i, code in ipairs(codes) do
local link = links[code]
toolbarArgs[#toolbarArgs + 1] = link
end
toolbarArgs.style = options.toolbarStyle
toolbarArgs.separator = options.separator or 'dot'
toolbarArgs.span = options.span
local toolbar = mToolbar.main(toolbarArgs)
-- Apply the sup option.
if options.sup then
toolbar = '<sup>' .. toolbar .. '</sup>'
end
-- If we are transcluding, add a non-breaking space, but if we are substing
-- just use a normal space
local space = mw.isSubsting() and ' ' or ' '
return userLink .. space .. toolbar
end
--------------------------------------------------------------------------------
-- Single link function
--------------------------------------------------------------------------------
p.single = makeInvokeFunction('_single')
function p._single(args)
-- Fetches a single link from the link table.
local options = p.getOptions(args)
local snippets = p.getSnippets(args)
local links = p.getLinks(snippets)
local code = args[1]
local success, link = pcall(p.exportSingle, links, code)
if success then
return link
else
return makeWikitextError(link, options.isDemo)
end
end
function p.exportSingle(links, code)
-- If any errors occur, they will probably occur here. This function
-- exists purely so that all the errors that will occur in p._single can
-- be handled using a single pcall.
if not code then
raiseError(
message('error-nolinkcode'),
message('error-nolinkcode-section')
)
end
return links[code]
end
--------------------------------------------------------------------------------
-- Link table
--------------------------------------------------------------------------------
function p.linktable()
-- Returns a wikitext table of link codes, with an example link for each
-- one. This function doesn't take any arguments, so it can be accessed
-- directly from wiki pages without using makeInvokeFunction.
local args = {user = 'Example'}
local snippets = p.getSnippets(args)
local links = p.getLinks(snippets)
-- Assemble the codes and links in order
local firstCodes = {'u', 't', 'c'}
local firstLinks, firstCodesKeys = {}, {}
for i, code in ipairs(firstCodes) do
firstCodesKeys[code] = true
firstLinks[#firstLinks + 1] = {code, links[code]}
end
local secondLinks = {}
for code, link in pairs(links) do
if not firstCodesKeys[code] then
secondLinks[#secondLinks + 1] = {code, link}
end
end
table.sort(secondLinks, function(t1, t2)
return t1[1] < t2[1]
end)
local links = {}
for i, t in ipairs(firstLinks) do
links[#links + 1] = t
end
for i, t in ipairs(secondLinks) do
links[#links + 1] = t
end
-- Output the code table in table format
local ret = {}
ret[#ret + 1] = '{| class="wikitable plainlinks sortable"'
ret[#ret + 1] = '|-'
ret[#ret + 1] = '! ' .. message('linktable-codeheader')
ret[#ret + 1] = '! ' .. message('linktable-previewheader')
for i, t in ipairs(links) do
local code = t[1]
local link = t[2]
ret[#ret + 1] = '|-'
ret[#ret + 1] = "| '''" .. code .. "'''"
ret[#ret + 1] = '| ' .. link
end
ret[#ret + 1] = '|}'
return table.concat(ret, '\n')
end
return p