Mô đun:External links

require('strict')
-- local genitive = require('Module:Genitive')._genitive
local contLang = mw.language.getContentLanguage()

local cmodule = {}
local conf = require 'Module:External links/conf'(contLang:getCode())
local hasdatafromwikidata = false
local hasdatafromlocal = false
local haswikidatalink = true -- we assume it's connected

local p = {}

local function getLabel(entity, use_genitive, pagetitle)
local label = (pagetitle and pagetitle ~= ) and pagetitle or nil
if not label and not entity then
label = mw.title.getCurrentTitle().text
elseif not label then
label = mw.wikibase.label(entity.id) or mw.title.getCurrentTitle().text
end
-- return use_genitive and genitive(label, 'sitt') or label
return use_genitive and label .. "'s" or label
end

-- @todo cleanup, this is in production, use the console
local function dump(obj)
return "" .. mw.dumpObject(obj) .. ""
end

local function stringFormatter( datavalue )
if datavalue == nil or datavalue['type'] ~= 'string' then
return nil
end
return datavalue.value
end

local pval = {}
pval.P1793 = { -- format as a regular expression
types = {
snaktype = 'value',
datatype = 'string',
},
}

pval.P407 = { -- language of work or name
types = {
snaktype = 'value',
datatype = 'wikibase-item',
datavalue = {
type = 'wikibase-entityid',
}
},
}

pval.P364 = { -- original language of work
types = {
snaktype = 'value',
datatype = 'wikibase-item',
datavalue = {
type = 'wikibase-entityid',
}
},
}

pval.P218 = { -- ISO 639-1 language
types = {
snaktype = 'value',
datatype = 'external-id',
datavalue = {
type = 'string',
}
},
}

pval.P305 = { -- IETF language tag
types = {
snaktype = 'value',
datatype = 'external-id',
datavalue = {
type = 'string',
}
},
}

pval.P582 = { -- end time
types = {
snaktype = 'value',
datatype = 'time',
datavalue = {
type = 'string',
}
},
}

-- This is a really makeshift crappy converter, but it'll do some basic
-- conversion from PCRE to Lua-style patterns (note that this only work
-- in very few cases)
local function regexConverter( regex )
local output = regex
output = string.gsub(output, "\\d{2}", "%%d%%d")
output = string.gsub(output, "\\d{3}", "%%d%%d%%d")
output = string.gsub(output, "\\d{4}", "%%d%%d%%d%%d")
output = string.gsub(output, "\\d{5}", "%%d%%d%%d%%d%%d")
output = string.gsub(output, "\\d{6}", "%%d%%d%%d%%d%%d%%d")
output = string.gsub(output, "\\d{7}", "%%d%%d%%d%%d%%d%%d%%d")
output = string.gsub(output, "\\d{8}", "%%d%%d%%d%%d%%d%%d%%d%%d")
output = string.gsub(output, "\\d", "%%d")

return output
end

local function getFormatterUrl( prop, value )
local head = ""
local tail = ""
local entity = mw.wikibase.getEntity(prop)
-- to avoid deep tests
if not entity or not entity.claims then
return head
end
-- get the claims for this entity
local statements = entity.claims['P1630'] -- formatter URL
-- to avoid deep tests
if not statements then
return head
end
local formatters = {}
-- let's go through the claims
for _, claim in ipairs( statements ) do
-- to avoid deep tests
if not claim then
claim = {}
end
local valid = claim['type'] == 'statement'
and claim['rank'] ~= 'deprecated'
if valid then
local mainsnak = claim.mainsnak or {}
local preferred = claim['rank'] == 'preferred'
-- get any qualifiers for this claim (we are interested in P1793 for
-- indication of which claim is correct)
local qualifiers = claim.qualifiers or {}
-- now let's check the qualifier we are interested in
local qualid = 'P1793' -- format as a regular expression
-- if the claim has this qualifier
if qualifiers[qualid] then
-- it's here, let's check it out!
local items = {}
-- traverse all snaks in this qualifier
for _, qualsnak in ipairs( qualifiers[qualid] ) do
if qualsnak and pval[qualid] then
--mw.log("qualsnak = " .. dump(qualsnak))
-- check if the snak is of the correct snaktype and datatype
local valid = qualsnak.snaktype pval[qualid].types.snaktype
and qualsnak.datatype pval[qualid].types.datatype
if valid then
-- we'll have to convert the regex to Lua-style
local regex = regexConverter(qualsnak.datavalue.value)
local test = string.match( value, '^'..regex..'$' )
if test then
-- it matched, this is correct and overrides any other.
if preferred then
head = mainsnak.datavalue.value
else
tail = mainsnak.datavalue.value
end
end
end
end
end
else
-- we don't have any qualifier, is it preferred?
if (head and preferred) or (tail and not preferred) then
-- if we don't have any other, use this one
if preferred and head == then
head = mainsnak.datavalue.value
elseif not preferred and tail == then
tail = mainsnak.datavalue.value
end
end
end
end
end
return head ~= and head or tail

end

local function getLanguageData(prop, qid)
local head = {}
local tail = {}
-- mw.log("getLanguageData, prop="..dump(prop).." qid="..dump(qid))
-- get the entity we are checking
local entity = mw.wikibase.getEntityObject(qid)
-- to avoid deep tests
if not entity then
return nil
end
if not entity.claims then
return {}
end
-- get the claims for this entity
local statements = entity.claims[prop]
-- to avoid deep tests
if not statements then
return {}
end
-- mw.log("getLanguageData going through claims="..dump(statements))
-- let's go through the claims
for _, claim in ipairs( statements ) do
-- to avoid deep tests
if not claim then
claim = {}
end
local valid = claim['type'] == 'statement'
and claim['rank'] ~= 'deprecated'
if valid then
local mainsnak = claim.mainsnak or {}
local preferred = claim['rank'] == 'preferred'
-- verify the item is what we expect
local valid = mainsnak.snaktype pval[prop].types.snaktype
and mainsnak.datatype pval[prop].types.datatype
and mainsnak.datavalue.type == pval[prop].types.datavalue.type
if valid then
-- mw.log("getLanguageData claim is valid="..dump(claim))
-- if this is the correct P-value, dive into it and get P218 (ISO 639-1)
if mainsnak.property == 'P364' then -- original language of work
if preferred then
head[head+1] = table.concat(getLanguageData('P218', 'Q'..mainsnak.datavalue.value['numeric-id']), conf:a('mod-filter-separator'))
else
tail[tail+1] = table.concat(getLanguageData('P218', 'Q'..mainsnak.datavalue.value['numeric-id']), conf:a('mod-filter-separator'))
end
elseif mainsnak.property 'P218' or mainsnak.property 'P305' then -- ISO 639-1 code or IETF language tag
if preferred then
head[head+1] = stringFormatter(mainsnak.datavalue)
else
tail[tail+1] = stringFormatter(mainsnak.datavalue)
end
end
end
end
end
-- mw.log("getLanguageData returning head="..dump(head).." tail="..dump(tail))
return head>0 and head or tail
end

local langqvalorder = {'P407','P364'}
local otherqvalorder = {'P582'}

local function getValuesFromWikidata(props)
local head = {}
local tail = {}
-- mw.log("getValuesFromWikidata, props="..dump(props))
-- get the entity we are checking
local entity = mw.wikibase.getEntityObject()
-- to avoid deep tests
if not entity then
--mw.log("getValuesFromWikidata no entity")
return nil
end
if not entity.claims or not props or not props.prop or props.prop == then
--mw.log("getValuesFromWikidata no claims or no props")
return {}
end
-- get the claims for this entity
local statements = entity.claims[props.prop]
-- to avoid deep tests
if not statements then
return {}
end
-- let's go through the claims
for _, claim in ipairs( statements ) do
-- to avoid deep tests
if not claim then
claim = {}
end
local valid = claim['type'] == 'statement'
and claim['rank'] ~= 'deprecated'
if valid then
-- mw.log("getValuesFromWikidata valid claim="..dump(claim))
local mainsnak = claim.mainsnak or {}
local preferred = claim['rank'] == 'preferred'
-- get the content of the claim (the identifier)
local langcode = props.langcode
local checklangcode = nil
if props.langcode and props.langcode ~= then
checklangcode = string.find(langcode, "([pP]%d+)")
end
if checklangcode and checklangcode ~= "" then
-- this is a P-value for language-code, so we'll check qualifiers for languagedata
-- first get any qualifiers
local qualifiers = claim.qualifiers or {}
for _, qualid in ipairs( langqvalorder ) do
-- if the claim has this qualifier
if qualifiers[qualid] then
-- it's here, let's check it out!
local items = {}
-- traverse all snaks in this qualifier
for _, qualsnak in ipairs( qualifiers[qualid] ) do
if qualsnak and pval[qualid] then
-- mw.log("qualsnak = " .. dump(qualsnak))
-- check if the snak is of the correct snaktype and datatype
local valid = qualsnak.snaktype pval[qualid].types.snaktype
and qualsnak.datatype pval[qualid].types.datatype
if valid then
-- now get the actual data
langcode = table.concat(getLanguageData('P305', 'Q'..qualsnak.datavalue.value['numeric-id']), )
end
end
end
end
-- mw.log("langcode is now="..dump(langcode))
end
if string.find(langcode, "([pP]%d+)") then
-- we still don't have any langcode, so we default to "en"
langcode = nil
end
end
local stillvalid = true
-- we should check a couple of other qualifiers as well
-- first get any qualifiers
local qualifiers = claim.qualifiers or {}
for _, qualid in ipairs( otherqvalorder ) do
-- if the claim has this qualifier
if qualifiers[qualid] then
-- it's here, let's check it out!
local items = {}
-- traverse all snaks in this qualifier
for _, qualsnak in ipairs( qualifiers[qualid] ) do
if qualsnak and pval[qualid] then
-- mw.log("qualsnak = " .. dump(qualsnak))
-- check if the snak is of the correct snaktype and datatype
local valid = qualsnak.snaktype pval[qualid].types.snaktype
and qualsnak.datatype pval[qualid].types.datatype
if not valid then
-- sorry, this is not correct
mw.log("qualsnak = INCORRECT")
stillvalid = false
end
end
end
end
-- mw.log("langcode is now="..dump(langcode))
end
if stillvalid then
if preferred then
head[head+1] = { value=stringFormatter(mainsnak.datavalue) }
if langcode and langcode ~= then
head[head]['langcode'] = langcode
end
else
tail[tail+1] = { value=stringFormatter(mainsnak.datavalue) }
if langcode and langcode ~= then
tail[tail]['langcode'] = langcode
end
end
end
end
end
-- mw.log("getValuesFromWikidata returning head="..dump(head).." tail="..dump(tail))
return head>0 and head or tail
end

local function findMainLinksOnWikidata(props, pagetitle, short_links)
local output = {}
local pid = nil
-- get the entity we are checking
local entity = mw.wikibase.getEntityObject()
-- to avoid deep tests
if not entity then
return nil
end
local values = getValuesFromWikidata(props)
for _, value in ipairs( values ) do
local verified_value = nil
if props.regex then
-- we have a local defined regex, so this will have to pass first
-- maybe we'll have to convert the regex to Lua-style
local regex = regexConverter(props.regex)
local test = string.match( value.value, '^'..regex..'$' )
--mw.log("testing with "..regex.. " and test="..dump(test).." and value="..id)
if test then
-- it matched, this is correct and overrides any other.
verified_value = value.value
end
else
verified_value = value.value
end
if verified_value then
local url =
output[output+1] = {}
output[output].langcode = value.langcode
output[output].category = {}
if props.url_f then
-- we have a local defined url-formatter function, use it as first priority
url = props.url_f(verified_value)
if props.track and not string.find(props.langcode, "([pP]%d+)") then
output[output].category[output[output].category+1] = mw.message.newRawMessage(cmodule:getMessage(contLang:getCode(), 'track-cat-local-wd'), props.prop):plain()
elseif props.track then
output[output].category[output[output].category+1] = mw.message.newRawMessage(cmodule:getMessage(contLang:getCode(), 'track-cat-wd-wd'), props.prop):plain()
end
elseif props.url then
-- we have a local defined url-formatter string, use it as second priority
url = mw.message.newRawMessage(props.url, verified_value):plain()
if props.track and not string.find(props.langcode, "([pP]%d+)") then
output[output].category[output[output].category+1] = mw.message.newRawMessage(cmodule:getMessage(contLang:getCode(), 'track-cat-local-wd'), props.prop):plain()
elseif props.track then
output[output].category[output[output].category+1] = mw.message.newRawMessage(cmodule:getMessage(contLang:getCode(), 'track-cat-wd-wd'), props.prop):plain()
end
else
-- get the formatvalue from the property, if it exists
local formatterUrl = getFormatterUrl(props.prop, verified_value)
if formatterUrl ~= then
url = mw.message.newRawMessage(formatterUrl, verified_value):plain()
if props.track then
output[output].category[output[output].category+1] = mw.message.newRawMessage(cmodule:getMessage(contLang:getCode(), 'track-cat-wd-wd'), props.prop):plain()
end
end
end
if url ~= then
local this_wiki = mw.getContentLanguage()
local this_wiki_code = this_wiki:getCode()
local langlink = (value.langcode and value.langcode ~= and value.langcode ~= this_wiki_code) and mw.message.newRawMessage(conf:g('msg-langcode'), value.langcode, mw.language.fetchLanguageName(value.langcode, this_wiki_code)) or ""
if short_links and props.short then
output[output].text =
mw.message.newRawMessage(props.short,
getLabel(entity, props.genitive, pagetitle),
url,
langlink,
verified_value,
mw.uri.encode(verified_value, 'PATH'))
:plain()
else
output[output].text =
mw.message.newRawMessage(props.message,
getLabel(entity, props.genitive, pagetitle),
url,
langlink,
verified_value,
mw.uri.encode(verified_value, 'PATH'))
:plain()
end
end
end
end
--mw.log("findMainLinksOnWikidata returning="..dump(output))
return output
end

local function getSitelinksFromWikidata(props, entity)
local output = {}
--mw.log("getSitelinksFromWikidata, props="..dump(props))
-- to avoid deep tests
if not entity then
entity = mw.wikibase.getEntityObject()
if not entity then
--mw.log("getSitelinksFromWikidata no entity")
return nil
end
end
local requested_sitelink = string.match(props.prop, "SL(%l+)")
local sitelinks = entity:getSitelink(requested_sitelink)
if sitelinks and sitelinks ~= then
output[output+1] = { value = sitelinks }
end
--mw.log("getSitelinksFromWikidata returning output="..dump(output))
return output
end

local function findSiteLinksOnWikidata(props, pagetitle, short_links)
local output = {}
local pid = nil
-- get the entity we are checking
local entity = mw.wikibase.getEntityObject()
-- to avoid deep tests
if not entity then
return nil
end
local values = getSitelinksFromWikidata(props)
for _, value in ipairs( values ) do
local verified_value = nil
if props.regex then
-- we have a local defined regex, so this will have to pass first
-- maybe we'll have to convert the regex to Lua-style
local regex = regexConverter(props.regex)
local test = string.match( value.value, '^'..regex..'$' )
--mw.log("testing with "..regex.. " and test="..dump(test).." and value="..id)
if test then
-- it matched, this is correct and overrides any other.
verified_value = value.value
end
else
verified_value = value.value
end
if verified_value then
--mw.log("it's verified..")
local url =
output[output+1] = {}
output[output].langcode = value.langcode
output[output].category = {}
if props.url_f then
-- we have a local defined url-formatter function, use it as first priority
url = props.url_f(verified_value)
if props.track and not string.find(props.langcode, "(SL%l+)") then
output[output].category[output[output].category+1] = mw.message.newRawMessage(cmodule:getMessage(contLang:getCode(), 'track-cat-local-wd'), props.prop):plain()
elseif props.track then
output[output].category[output[output].category+1] = mw.message.newRawMessage(cmodule:getMessage(contLang:getCode(), 'track-cat-wd-wd'), props.prop):plain()
end
elseif props.url then
-- we have a local defined url-formatter string, use it as second priority
url = mw.message.newRawMessage(props.url, verified_value):plain()
if props.track and not string.find(props.langcode, "(SL%l+)") then
output[output].category[output[output].category+1] = mw.message.newRawMessage(cmodule:getMessage(contLang:getCode(), 'track-cat-local-wd'), props.prop):plain()
elseif props.track then
output[output].category[output[output].category+1] = mw.message.newRawMessage(cmodule:getMessage(contLang:getCode(), 'track-cat-wd-wd'), props.prop):plain()
end
else
url = verified_value:gsub(' ','_')
if props.track then
output[output].category[output[output].category+1] = mw.message.newRawMessage(cmodule:getMessage(contLang:getCode(), 'track-cat-wd-wd'), props.prop):plain()
end
end
if url ~= then
local this_wiki = mw.getContentLanguage()
local this_wiki_code = this_wiki:getCode()
local langlink = (value.langcode and value.langcode ~= and value.langcode ~= this_wiki_code) and mw.message.newRawMessage(conf:g('msg-langcode'), value.langcode, mw.language.fetchLanguageName(value.langcode, this_wiki_code)) or ""
if short_links and props.short then
output[output].text =
mw.message.newRawMessage(props.short,
getLabel(entity, props.genitive, pagetitle),
url,
langlink,
verified_value,
mw.uri.encode(verified_value, 'PATH'))
:plain()
else
output[output].text =
mw.message.newRawMessage(props.message,
getLabel(entity, props.genitive, pagetitle),
url,
langlink,
verified_value,
mw.uri.encode(verified_value, 'PATH'))
:plain()
end
end
end
end
--mw.log("findSiteLinksOnWikidata returning="..dump(output))
return output
end

local function findMainLinksLocal(props, pagetitle, short_links, local_value)
local output = {}
-- to avoid deep tests
if not props.prop then
return nil
end
if not local_value or local_value == then
-- bail out if no value is present
return output
end
-- get the formatvalue from the property
local verified_value = local_value
if props.regex and props.regex ~= then
-- let's verify the id
-- maybe we'll have to convert the regex to Lua-style
local regex = regexConverter(props.regex)
local test = string.match( local_value, '^'..regex..'$' )
if test then
-- it matched, this is correct
verified_value = local_value
else
verified_value = nil
end

end
if not verified_value then
return output
end
local wikidata_property = string.find(props.prop, "([pP]%d+)")
local wikidata_values = {}
if wikidata_property then
-- get any wikidata values to see if they are equal to local values
wikidata_values = getValuesFromWikidata(props)
end
if wikidata_property or (props.url and props.url ~= ) or (props.url_f) then
output[output+1] = {}
output[output].langcode = string.find(props.langcode, "([pP]%d+)") and "" or props.langcode
--mw.log("findMainLinksLocal - props="..dump(props).." langcode="..output[output].langcode)
output[output].category = {}
local url =
if props.track and wikidata_property and wikidata_values and wikidata_values then
local local_value_in_wikidata = false
for _,value in ipairs( wikidata_values ) do
if value.value == verified_value then
local_value_in_wikidata = true
end
end
output[output].category[output[output].category+1] = mw.message.newRawMessage(cmodule:getMessage(contLang:getCode(), (local_value_in_wikidata and 'track-cat-local-wd-equal' or 'track-cat-local-wd-unequal')), props.prop):plain()
end
if wikidata_property and wikidata_values and wikidata_values then
hasdatafromwikidata = true -- signal up the chain this article has a wikidata claim
end
if props.url_f then
-- we have a local defined url-formatter function, use it as first priority
url = props.url_f(verified_value)
if props.track then
output[output].category[output[output].category+1] = mw.message.newRawMessage(cmodule:getMessage(contLang:getCode(), 'track-cat-local-local'), props.prop):plain()
end
elseif props.url then
-- we have a local defined url-formatter string, use it as second priority
url = mw.message.newRawMessage(props.url, verified_value):plain()
if props.track then
output[output].category[output[output].category+1] = mw.message.newRawMessage(cmodule:getMessage(contLang:getCode(), 'track-cat-local-local'), props.prop):plain()
end
elseif wikidata_property then
-- get the formatvalue from the property, if it exists
local formatterUrl = getFormatterUrl(props.prop, verified_value)
if formatterUrl ~= then
url = mw.message.newRawMessage(formatterUrl, verified_value):plain()
if props.track then
output[output].category[output[output].category+1] = mw.message.newRawMessage(cmodule:getMessage(contLang:getCode(), 'track-cat-wd-local'), props.prop):plain()
end
end
else
-- no other choice, bail out
return {}
end
local this_wiki = mw.getContentLanguage()
local this_wiki_code = this_wiki:getCode()
local langlink = (output[output].langcode and output[output].langcode ~= and output[output].langcode ~= this_wiki_code) and mw.message.newRawMessage(conf:g('msg-langcode'), props.langcode, mw.language.fetchLanguageName(props.langcode, this_wiki_code)) or ""
if short_links and props.short then
output[output].text =
mw.message.newRawMessage(props.short,
getLabel(nil, props.genitive, pagetitle),
url,
langlink,
verified_value,
mw.uri.encode(verified_value, 'PATH'))
:plain()
else
output[output].text =
mw.message.newRawMessage(props.message,
getLabel(nil, props.genitive, pagetitle),
url,
langlink,
verified_value,
mw.uri.encode(verified_value, 'PATH'))
:plain()
end
end
--mw.log("findMainLinksLocal returning="..dump(output))
return output
end

local function findSiteLinksLocal(props, pagetitle, short_links, local_value)
local output = {}
-- to avoid deep tests
if not props.prop then
return nil
end
if not local_value or local_value == then
-- bail out if no value is present
return output
end
-- get the formatvalue from the property
local verified_value = local_value
if props.regex and props.regex ~= then
-- let's verify the id
-- maybe we'll have to convert the regex to Lua-style
local regex = regexConverter(props.regex)
local test = string.match( local_value, '^'..regex..'$' )
if test then
-- it matched, this is correct
verified_value = local_value
else
verified_value = nil
end

end
if not verified_value then
return output
end
local wikidata_property = string.find(props.prop, "(SL.+)")
local wikidata_values = {}
if wikidata_property then
-- get any wikidata values to see if they are equal to local values
wikidata_values = getSitelinksFromWikidata(props)
end
if wikidata_property or (props.url and props.url ~= ) or (props.url_f) then
output[output+1] = {}
output[output].langcode = string.find(props.langcode, "(SL.+)") and "" or props.langcode
--mw.log("findSiteLinksLocal - props="..dump(props).." langcode="..output[output].langcode .." wikidata_values="..dump(wikidata_values))
output[output].category = {}
local url =
if props.track and wikidata_property and wikidata_values and wikidata_values then
local local_value_in_wikidata = false
for _,value in ipairs( wikidata_values ) do
if value.value == verified_value then
local_value_in_wikidata = true
end
end
output[output].category[output[output].category+1] = mw.message.newRawMessage(cmodule:getMessage(contLang:getCode(), (local_value_in_wikidata and 'track-cat-local-wd-equal' or 'track-cat-local-wd-unequal')), props.prop):plain()
end
if wikidata_property and wikidata_values and wikidata_values then
hasdatafromwikidata = true -- signal up the chain this article has a wikidata claim
end
if props.url_f then
-- we have a local defined url-formatter function, use it as first priority
url = props.url_f(verified_value)
if props.track then
output[output].category[output[output].category+1] = mw.message.newRawMessage(cmodule:getMessage(contLang:getCode(), 'track-cat-local-local'), props.prop):plain()
end
elseif props.url then
-- we have a local defined url-formatter string, use it as second priority
url = mw.message.newRawMessage(props.url, verified_value):plain()
if props.track then
output[output].category[output[output].category+1] = mw.message.newRawMessage(cmodule:getMessage(contLang:getCode(), 'track-cat-local-local'), props.prop):plain()
end
elseif wikidata_property then
url = verified_value:gsub(' ','_')
if props.track then
output[output].category[output[output].category+1] = mw.message.newRawMessage(cmodule:getMessage(contLang:getCode(), 'track-cat-wd-local'), props.prop):plain()
end
else
-- no other choice, bail out
return {}
end
local this_wiki = mw.getContentLanguage()
local this_wiki_code = this_wiki:getCode()
local langlink = (output[output].langcode and output[output].langcode ~= and output[output].langcode ~= this_wiki_code) and mw.message.newRawMessage(conf:g('msg-langcode'), props.langcode, mw.language.fetchLanguageName(props.langcode, this_wiki_code)) or ""
if short_links and props.short then
output[output].text =
mw.message.newRawMessage(props.short,
getLabel(nil, props.genitive, pagetitle),
url,
langlink,
verified_value,
mw.uri.encode(verified_value, 'PATH'))
:plain()
else
output[output].text =
mw.message.newRawMessage(props.message,
getLabel(nil, props.genitive, pagetitle),
url,
langlink,
verified_value,
mw.uri.encode(verified_value, 'PATH'))
:plain()
end
end
--mw.log("findSiteLinksLocal returning="..dump(output))
return output
end

local function addLinkback(str, property)
local id = mw.wikibase.getEntityObject()
if not id then
return str
end
if type(id) == 'table' then
id = id.id
end

local class =
local url =
if property then
class = 'wd_' .. string.lower(property)
url = mw.uri.fullUrl('d:' .. id .. '' .. property)
url.fragment = property
else
url = mw.uri.fullUrl('d:' .. id )
end

local title = conf:g('wikidata-linkback-edit')
local icon = '[%s ]'
url = tostring(url)
local v = mw.html.create('span')
:addClass(class)
:wikitext(str)
:tag('span')
:addClass('noprint plainlinks wikidata-linkback')
:css('padding-left', '.3em')
:wikitext(icon:format(url, title))
:allDone()
return tostring(v)
end

local function getArgument(frame, argument)
local args = frame.args
if args[1] == nil then
local pFrame = frame:getParent();
args = pFrame.args;
for k,v in pairs( frame.args ) do
args[k] = v;
end
end
if args[argument] then
return args[argument]
end
return nil
end

local function removeEntry(conf_claims, identifier, property)
for i, props in ipairs(conf_claims) do
if props[identifier] == property then
table.remove(conf_claims, i)
end
end
return conf_claims
end

function p.getLinks(frame)
local configured_conf = getArgument(frame, conf:a('arg-conf'))
if configured_conf then
cmodule = require ('Module:External_links/conf/'..configured_conf)
else
error(mw.message.newRawMessage(conf:g('missing-conf'), configured_conf):plain())
end
local output = {}
local category = {}
local conf_claims = cmodule:getConfiguredClaims(contLang:getCode())
local limits = cmodule:getLimits()
assert(limits, mw.message.newRawMessage(conf:g('missing-limits'), configured_conf):plain())
local links_shown = getArgument(frame, conf:a('arg-maxlink'))
local pagetitle = getArgument(frame, conf:a('arg-title'))
-- get a list of tracked properties from the article itself
local requested_tracking = getArgument(frame, conf:a('arg-track'))
if requested_tracking and requested_tracking ~= then
-- the properties should be written as P1234, P2345 and other
-- version corresponding to the applicable property-identifiers in the config
for track_prop in string.gmatch(requested_tracking,"([^ ,;:]+)") do
-- get the requested properties and be able to access them
-- like req_prop['P345'] to verify if it was requested
local remove_track = string.match(track_prop, "^-(.)")
for i,claim in ipairs ( conf_claims ) do
if remove_track claim.prop or remove_track conf:a('mod-filter-all') then
-- if a property starts with "-", then we'll simply remove that
-- property from the conf_claims
conf_claims[i]['track'] = false
elseif track_prop claim.prop or track_prop conf:a('mod-filter-all') then
conf_claims[i]['track'] = true
end
end
end
end
-- get a list of "approved" properties from the article itself
local requested_properties = getArgument(frame, conf:a('arg-properties'))
--mw.log("requested_properties="..dump(requested_properties))
-- assume all properties are allowed
local req_prop = {}
local no_req_prop = false -- we'll allow properties to be filtered for now
if requested_properties and requested_properties ~= then
-- the properties should be written as P1234, P2345 and other
-- version corresponding to the applicable property-identifiers in the config
for i in string.gmatch(requested_properties,"([^ ,;:]+)") do
-- get the requested properties and be able to access them
-- like req_prop['P345'] to verify if it was requested
if i == conf:a('mod-filter-all') then
-- this is a special modifier, saying we should ignore
-- all previous and future positive filters and remove the
-- filter (with exception of negative filters)
req_prop = {}
no_req_prop = true
end
local remove_prop = string.match(i, "^-(.)")
if remove_prop then
-- if a property starts with "-", then we'll simply remove that
-- property from the conf_claims
conf_claims = removeEntry(conf_claims, 'prop', remove_prop)
elseif not no_req_prop then -- only if we are allowing properties to be filtered
req_prop[i] = 1
-- cheat to make req_prop indicate populated table
req_prop[1] = 1
end
end
end
local requested_langs = getArgument(frame, conf:a('arg-languages'))
--mw.log("requested_langs="..dump(requested_langs))
-- assume all languages are allowed
local req_lang = {}
local no_req_lang = false -- we'll allow languages to be filtered for now
if requested_langs and requested_langs ~= then
-- the languages should be written as langcodes as used in the conf_claims
for i in string.gmatch(requested_langs,"([^ ,;:]+)") do
-- get the requested languages and be able to access them
if i == conf:a('mod-filter-all') then
-- this is a special modifier, saying we should ignore
-- all previous and future positive filters and remove the
-- filter (with exception of negative filters)
req_lang = {}
no_req_lang = true
end
-- like req_lang['en'] to verify if it was requested
local remove_lang = string.match(i, "^-(.)")
if remove_lang then
-- if a language starts with "-", then we'll simply remove that
-- language from the conf_claims
conf_claims = removeEntry(conf_claims, 'langcode', remove_lang)
elseif not no_req_lang then -- only if we are allowing languages to be filtered
req_lang[i] = 1
-- cheat to make req_lang indicate populated table
req_lang[1] = 1
end
end
end
local short_links = getArgument(frame, conf:a('arg-short'))
if short_links and short_links ~= then
short_links = true
else
short_links = false
end
local showinline = getArgument(frame, conf:a('arg-inline'))
if showinline and showinline ~= then
showinline = true
else
showinline = false
end
if not links_shown or links_shown == then
links_shown = limits['links-shown'] and limits['links-shown'] or 10
else
links_shown = tonumber(links_shown)
end
local somedataonwikidata = not short_links
--mw.log("conf_claims="..dump(conf_claims))
--mw.log("req_prop="..dump(req_prop))
--mw.log("req_lang="..dump(req_lang))
--mw.log("short_links="..dump(short_links))
for _, props in ipairs(conf_claims) do
-- if we're called with a list of approved properties or languages, check if this one is "approved"
if (req_prop0 or req_prop[props.prop]) and (req_lang0 or req_lang[props.langcode] or string.find(props.langcode, "([pP]%d+)")) then
--mw.log("checking claim="..dump(props))
local links = {}
local checkedonwikidata = false
-- get the any local overriding value from the call
local wikivalue = getArgument(frame, props.prop)
--mw.log("wikivalue="..dump(wikivalue))
if (not wikivalue or wikivalue == "") and string.find(props.prop, "([pP]%d+)") then
-- the property is a Pnnn type, and therefore on Wikidata
links = findMainLinksOnWikidata(props, pagetitle, short_links)
if links == nil then
-- a nil-value indicated no wikidata-link
haswikidatalink = false
links = {}
else
checkedonwikidata = true
end
elseif (not wikivalue or wikivalue == "") and string.find(props.prop, "(SL%l+)") then
-- this is a sitelink-type (SLspecieswiki)
--mw.log("finding sitelinks..")
links = findSiteLinksOnWikidata(props, pagetitle, short_links)
if links == nil then
-- a nil-value indicated no wikidata-link
haswikidatalink = false
links = {}
else
checkedonwikidata = true
end
elseif (wikivalue and wikivalue ~= "") and string.find(props.prop, "(SL%l+)") then
-- this is a sitelink-type (SLspecieswiki)
links = findSiteLinksLocal(props, pagetitle, short_links, wikivalue)
elseif wikivalue and wikivalue ~= then
-- the property is of another annotation, and therefore a local construct
links = findMainLinksLocal(props, pagetitle, short_links, wikivalue)
end
--mw.log("links="..dump(links))
for _,v in ipairs(links) do
-- we'll have to check langcodes again as they may have come from wikidata
if (req_lang==0 or req_lang[v.langcode]) then
if checkedonwikidata and not hasdatafromwikidata then
-- add a general tracking category for articles with data from wikidata
hasdatafromwikidata = true
category[category+1] = cmodule:getMessage(contLang:getCode(), 'with-data-cat')
elseif not checkedonwikidata and not hasdatafromlocal then
-- add a general tracking category for articles with data from template-calls in local articles
hasdatafromlocal = true
category[category+1] = cmodule:getMessage(contLang:getCode(), 'with-local-cat')
end
if short_links and props.short and v.text and v.text ~= then
-- if short links were requested, and a short definition exists for this property, let's use it
if output==0 then
output[output+1] = v.text
else
output[output] = output[output] .. cmodule:getMessage(contLang:getCode(),'short-list-separator') .. v.text
end
somedataonwikidata = true
elseif not short_links and not showinline and v.text and v.text ~= then
-- only if short links were not requested
output[output+1] = (output>=1 and conf:g('msg-ul-prepend') or ) -- if this is the first link, we won't output a list-element (msg-ul-prepend)
.. (checkedonwikidata and addLinkback(v.text, props.prop) or v.text) -- if the link comes from wikidata, also output a linkback.
elseif not short_links and showinline and v.text and v.text ~= then
-- only if short links were not requested
output[output+1] = v.text
end
if props.track and v.category and v.category then
-- add category if tracking is on for this property and a category exists in the link-result.
for _,cats in ipairs( v.category ) do
category[category+1] = cats
end
end
if links_shown>0 then
links_shown = links_shown - 1
else
break
end
end
end
if links_shown==0 then
break
end
end
end
local outtext = ""
if short_links and output>0 then
-- if these are short links, output the whole thing with linkback to wikidata
--mw.log("somedataonwikidata="..dump(somedataonwikidata).." and output="..dump(output).." and output="..dump(output))
outtext = (somedataonwikidata
and addLinkback(table.concat(output,cmodule:getMessage(contLang:getCode(),'short-list-separator')), nil)
or table.concat(output,cmodule:getMessage(contLang:getCode(),'short-list-separator')))
elseif not short_links and not showinline and output>0 then
outtext = table.concat(output,"\n")
elseif not short_links and showinline and output>0 then
outtext = table.concat(output,conf:g('msg-inline-separator'))
end
if not hasdatafromwikidata then
category[category+1] = cmodule:getMessage(contLang:getCode(), 'no-data-cat')
if not hasdatafromlocal and not short_links then
outtext = cmodule:getMessage(contLang:getCode(), 'no-data-text')
end
end
if not haswikidatalink then
category[category+1] = cmodule:getMessage(contLang:getCode(), 'no-wikilink-cat')
if not hasdatafromlocal and not short_links then
outtext = cmodule:getMessage(contLang:getCode(), 'no-wikilink')
end
end
local nocategory = getArgument(frame, conf:a('arg-no-categories'))
category = category>0 and "\n" .. table.concat(category,"\n") or ""
--mw.log("nocategory="..dump(nocategory).." and outtext="..dump(outtext).." and category="..dump(category))
outtext = outtext .. (nocategory and or category)
return outtext
end

function p.getLanguageCode(frame)
local prop = getArgument(frame, conf:a('arg-properties'))
local output = getLanguageData(prop)
return table.concat(output, conf:a('mod-filter-separator'))
end

return p