Difference between revisions of "Module:URL"

m (1 revision imported)
en>RexxS
(catch nil value for msg)
Line 7: Line 7:
 
   
 
   
 
local function safeUri(s)
 
local function safeUri(s)
−
    local success, uri = pcall(function()
+
local success, uri = pcall(function()
−
        return mw.uri.new(s)
+
return mw.uri.new(s)
−
    end)
+
end)
−
    if success then
+
if success then
−
        return uri
+
return uri
−
    end
+
end
 
end
 
end
  
−
function p._url(url, text)
+
local function extractUrl(args)
−
    url = mw.text.trim(url or '')
+
for name, val in pairs(args) do
−
    text = mw.text.trim(text or '')
+
local url = name .. "=" .. val;
−
   
+
url = mw.ustring.gsub(url, '^[Hh][Tt][Tt][Pp]([Ss]?):(/?)([^/])', 'http%1://%3')
−
    if url == '' then
+
local uri = safeUri(url);
−
        if text == '' then
+
if uri and uri.host then
−
            return mw.getCurrentFrame():expandTemplate{ title = 'tlx', args = { 'URL', "''example.com''", "''optional display text''" } }
+
return url
−
        else
+
end
−
            return text
+
end
−
        end
+
end
−
    end
+
 
−
   
+
function p._url(url, text, msg)
−
    -- If the URL contains any unencoded spaces, encode them, because MediaWiki will otherwise interpret a space as the end of the URL.
+
url = mw.text.trim(url or '')
−
    url = mw.ustring.gsub(url, '%s', function(s) return mw.uri.encode(s, 'PATH') end)
+
text = mw.text.trim(text or '')
−
   
+
local nomsg = (msg or ''):sub(1,1):lower() == "n" or msg == 'false' -- boolean: true if msg is "false" or starts with n or N
−
    -- If there is an empty query string or fragment id, remove it as it will cause mw.uri.new to throw an error
+
 
−
    url = mw.ustring.gsub(url, '#$', '')
+
if url == '' then
−
    url = mw.ustring.gsub(url, '%?$', '')
+
if text == '' then
−
   
+
if nomsg then
−
    -- If it's an HTTP[S] URL without the double slash, fix it.
+
return nil
−
    url = mw.ustring.gsub(url, '^[Hh][Tt][Tt][Pp]([Ss]?):(/?)([^/])', 'http%1://%3')
+
else
 +
return mw.getCurrentFrame():expandTemplate{ title = 'tlx', args = { 'URL', "''example.com''", "''optional display text''" } }
 +
end
 +
else
 +
return text
 +
end
 +
end
 +
 
 +
-- If the URL contains any unencoded spaces, encode them, because MediaWiki will otherwise interpret a space as the end of the URL.
 +
url = mw.ustring.gsub(url, '%s', function(s) return mw.uri.encode(s, 'PATH') end)
 +
 
 +
-- If there is an empty query string or fragment id, remove it as it will cause mw.uri.new to throw an error
 +
url = mw.ustring.gsub(url, '#$', '')
 +
url = mw.ustring.gsub(url, '%?$', '')
 +
 
 +
-- If it's an HTTP[S] URL without the double slash, fix it.
 +
url = mw.ustring.gsub(url, '^[Hh][Tt][Tt][Pp]([Ss]?):(/?)([^/])', 'http%1://%3')
 +
 
 +
-- Handle URLs from Wikidata of the format http://
 +
url = mw.ustring.gsub(url, '^[Hh][Tt][Tt][Pp]([Ss]?)://', 'http%1://')
  
−
    -- Handle URLs from Wikidata of the format http://
+
local uri = safeUri(url)
−
    url = mw.ustring.gsub(url, '^[Hh][Tt][Tt][Pp]([Ss]?)://', 'http%1://')
+
 
−
   
+
-- Handle URL's without a protocol and URL's that are protocol-relative,  
−
    local uri = safeUri(url)
+
-- e.g. www.example.com/foo or www.example.com:8080/foo, and //www.example.com/foo
−
   
+
if uri and (not uri.protocol or (uri.protocol and not uri.host)) and url:sub(1, 2) ~= '//' then
−
    -- Handle URL's without a protocol and URL's that are protocol-relative,  
+
url = 'http://' .. url
−
    -- e.g. www.example.com/foo or www.example.com:8080/foo, and //www.example.com/foo
+
uri = safeUri(url)
−
    if uri and (not uri.protocol or (uri.protocol and not uri.host)) and url:sub(1, 2) ~= '//' then
+
end
−
        url = 'http://' .. url
+
 
−
        uri = safeUri(url)
+
if text == '' then
−
    end
+
if uri then
−
   
+
if uri.path == '/' then uri.path = '' end
−
    if text == '' then
+
 
−
        if uri then
+
local port = ''
−
            if uri.path == '/' then uri.path = '' end
+
if uri.port then port = ':' .. uri.port end
−
           
+
 
−
            local port = ''
+
text = mw.ustring.lower(uri.host or '') .. port .. (uri.relativePath or '')
−
            if uri.port then port = ':' .. uri.port end
 
−
           
 
−
            text = mw.ustring.lower(uri.host or '') .. port .. (uri.relativePath or '')
 
  
 
-- Add <wbr> before _/.-# sequences
 
-- Add <wbr> before _/.-# sequences
Line 64: Line 80:
 
text = mw.ustring.gsub(text,"(%#+)","<wbr/>%1")
 
text = mw.ustring.gsub(text,"(%#+)","<wbr/>%1")
 
text = mw.ustring.gsub(text,"(_+)","<wbr/>%1")
 
text = mw.ustring.gsub(text,"(_+)","<wbr/>%1")
−
        else -- URL is badly-formed, so just display whatever was passed in
+
else -- URL is badly-formed, so just display whatever was passed in
−
            text = url
+
text = url
−
        end
+
end
−
    end
+
end
  
−
    return mw.ustring.format('<span class="url">[%s %s]</span>', url, text)
+
return mw.ustring.format('<span class="url">[%s %s]</span>', url, text)
 
end
 
end
  
 +
--[[
 +
The main entry point for caling from Template:URL.
 +
--]]
 
function p.url(frame)
 
function p.url(frame)
−
    local templateArgs = frame.args
+
local templateArgs = frame.args
−
local parentArgs = frame:getParent().args;
+
local parentArgs = frame:getParent().args
−
    local url = templateArgs[1] or parentArgs[1] or ''
+
local url = templateArgs[1] or parentArgs[1] or ''
−
    local text = templateArgs[2] or parentArgs[2]
+
local text = templateArgs[2] or parentArgs[2]
−
    if not text then
+
local msg = templateArgs.msg or parentArgs.msg or ''
−
    url = url or extractUrl(templateArgs) or extractUrl(parentArgs);
+
if not text then
 +
url = url or extractUrl(templateArgs) or extractUrl(parentArgs)
 
end
 
end
 
text = text or ''
 
text = text or ''
−
    return p._url(url, text)
+
return p._url(url, text, msg)
 
end
 
end
−
function extractUrl(args)
+
 
−
for name, val in pairs(args) do
+
--[[
−
local url = name .. "=" .. val;
+
The entry point for calling from the forked Template:URL2.
−
url = mw.ustring.gsub(url, '^[Hh][Tt][Tt][Pp]([Ss]?):(/?)([^/])', 'http%1://%3')
+
This function returns no message by default.
−
local uri = safeUri(url);
+
It strips out wiki-link markup, html tags, and everything after a space.
−
if uri and uri.host then
+
--]]
−
return url
+
function p.url2(frame)
−
end
+
local templateArgs = frame.args
 +
local parentArgs = frame:getParent().args
 +
local url = templateArgs[1] or parentArgs[1] or ''
 +
local text = templateArgs[2] or parentArgs[2] or ''
 +
-- default to no message
 +
local msg = templateArgs.msg or parentArgs.msg or 'no'
 +
if text == '' then
 +
url = url or extractUrl(templateArgs) or extractUrl(parentArgs)
 
end
 
end
 +
-- strip out html tags and [ ] from url
 +
url = (url or ''):gsub("<[^>]*>", ""):gsub("[%[%]]", "")
 +
-- truncate anything after a space
 +
url = url:gsub("%%20", " "):gsub(" .*", "")
 +
return p._url(url, text, msg)
 
end
 
end
 +
 
return p
 
return p

Revision as of 16:45, 24 February 2019

Documentation for this module may be created at Module:URL/doc

Script error: Lua error: Internal error: The interpreter exited with status 127. 

--
-- This module implements {{URL}}
--
-- See unit tests at [[Module:URL/tests]]

local p = {}
 
local function safeUri(s)
	local success, uri = pcall(function()
		return mw.uri.new(s)
	end)
	if success then
		return uri
	end
end

local function extractUrl(args)
	for name, val in pairs(args) do
		local url = name .. "=" .. val;
		url = mw.ustring.gsub(url, '^[Hh][Tt][Tt][Pp]([Ss]?):(/?)([^/])', 'http%1://%3')
		local uri = safeUri(url);
		if uri and uri.host then
			return url
		end
	end
end

function p._url(url, text, msg)
	url = mw.text.trim(url or '')
	text = mw.text.trim(text or '')
	local nomsg = (msg or ''):sub(1,1):lower() == "n" or msg == 'false' -- boolean: true if msg is "false" or starts with n or N

	if url == '' then
		if text == '' then
			if nomsg then
				return nil
			else
				return mw.getCurrentFrame():expandTemplate{ title = 'tlx', args = { 'URL', "''example.com''", "''optional display text''" } }
			end
		else
			return text
		end
	end

	-- If the URL contains any unencoded spaces, encode them, because MediaWiki will otherwise interpret a space as the end of the URL.
	url = mw.ustring.gsub(url, '%s', function(s) return mw.uri.encode(s, 'PATH') end)

	-- If there is an empty query string or fragment id, remove it as it will cause mw.uri.new to throw an error
	url = mw.ustring.gsub(url, '#$', '')
	url = mw.ustring.gsub(url, '%?$', '')

	-- If it's an HTTP[S] URL without the double slash, fix it.
	url = mw.ustring.gsub(url, '^[Hh][Tt][Tt][Pp]([Ss]?):(/?)([^/])', 'http%1://%3')

	-- Handle URLs from Wikidata of the format http&#58;//
	url = mw.ustring.gsub(url, '^[Hh][Tt][Tt][Pp]([Ss]?)&#58;//', 'http%1://')

	local uri = safeUri(url)

	-- Handle URL's without a protocol and URL's that are protocol-relative, 
	-- e.g. www.example.com/foo or www.example.com:8080/foo, and //www.example.com/foo
	if uri and (not uri.protocol or (uri.protocol and not uri.host)) and url:sub(1, 2) ~= '//' then
		url = 'http://' .. url
		uri = safeUri(url)
	end

	if text == '' then
		if uri then
			if uri.path == '/' then uri.path = '' end

			local port = ''
			if uri.port then port = ':' .. uri.port end

			text = mw.ustring.lower(uri.host or '') .. port .. (uri.relativePath or '')

			-- Add <wbr> before _/.-# sequences
			text = mw.ustring.gsub(text,"(/+)","<wbr/>%1")      -- This entry MUST be the first. "<wbr/>" has a "/" in it, you know.
			text = mw.ustring.gsub(text,"(%.+)","<wbr/>%1")
			-- text = mw.ustring.gsub(text,"(%-+)","<wbr/>%1") 	-- DISABLED for now
			text = mw.ustring.gsub(text,"(%#+)","<wbr/>%1")
			text = mw.ustring.gsub(text,"(_+)","<wbr/>%1")
		else -- URL is badly-formed, so just display whatever was passed in
			text = url
		end
	end

	return mw.ustring.format('<span class="url">[%s %s]</span>', url, text)
end

--[[
The main entry point for caling from Template:URL.
--]]
function p.url(frame)
	local templateArgs = frame.args
	local parentArgs = frame:getParent().args
	local url = templateArgs[1] or parentArgs[1] or ''
	local text = templateArgs[2] or parentArgs[2]
	local msg = templateArgs.msg or parentArgs.msg or ''
	if not text then
		url = url or extractUrl(templateArgs) or extractUrl(parentArgs)
	end
	text = text or ''
	return p._url(url, text, msg)
end

--[[
The entry point for calling from the forked Template:URL2.
This function returns no message by default.
It strips out wiki-link markup, html tags, and everything after a space.
--]]
function p.url2(frame)
	local templateArgs = frame.args
	local parentArgs = frame:getParent().args
	local url = templateArgs[1] or parentArgs[1] or ''
	local text = templateArgs[2] or parentArgs[2] or ''
	-- default to no message
	local msg = templateArgs.msg or parentArgs.msg or 'no'
	if text == '' then
		url = url or extractUrl(templateArgs) or extractUrl(parentArgs)
	end
	-- strip out html tags and [ ] from url
	url = (url or ''):gsub("<[^>]*>", ""):gsub("[%[%]]", "")
	-- truncate anything after a space
	url = url:gsub("%%20", " "):gsub(" .*", "")
	return p._url(url, text, msg)
end

return p
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