モジュール:UrlCheck
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-- module variable and administration
local uc = {
moduleInterface = {
suite = 'UrlCheck',
serial = '2023-11-02',
item = 40849609
}
}
function uc.ip4( address )
local parts = { address:match( '(%d+)%.(%d+)%.(%d+)%.(%d+)' ) }
local value
if #parts == 4 then
for _, value in pairs( parts ) do
if tonumber( value ) < 0 or tonumber( value ) > 255 then
return false
end
end
return true -- ok
end
return false
end
function uc.isUrl( url, skipPathCheck )
-- return codes 0 through 2 reserved
if not url or type( url ) ~= 'string' then
return 3
end
local s = mw.text.trim( url )
if s == '' then
return 3
elseif #s > 2048 then -- limitation because of search engines or IE
return 4
elseif s:find( '%s' ) or s:find( '%c' ) or s:match( '^%.' ) then
return 5
end
-- https://max:muster@www.example.com:8080/index.html?p1=A&p2=B#ressource
-- protocol
local count
s, count = s:gsub( '^https?://', '' )
if count == 0 then
s, count = s:gsub( '^//', '' )
end
if count == 0 then -- missing or wrong protocol
return 6
end
local user = ''
local password = ''
local host = ''
local port = ''
local aPath = ''
local topLevel = ''
-- split path from host
local at = s:find( '/' )
if at then
aPath = s:sub( at + 1, #s )
s = s:sub( 1, at - 1 )
if not s then
return 7
end
end
-- path check
if not skipPathCheck and aPath ~= '' then
if not aPath:match( "^[-A-Za-z0-9_.,~%%%+&:;#*?!'=()@/\128-\255]*$" ) then
return 23
end
end
if s:find( '%.%.' ) or s:find( '%.@' ) or s:find( '@[%.%-]' ) or s:find( '%-%.' )
or s:find( '%.%-' ) or s:find( '%./' ) or s:find( '/%.' ) then
return 8
end
-- user and password
s, count = s:gsub( '@', '@' )
if count > 1 then
return 9
elseif count == 1 then
at = s:find( '@' )
user = s:sub( 1, at - 1 )
host = s:sub( at + 1, #s )
if not user or not s then
return 10
end
user, count = user:gsub( ':', ':' )
if count > 1 then
return 11
elseif count == 1 then
at = user:find( ':' )
password = user:sub( at + 1, #user )
user = user:sub( 1, at - 1 )
if not user or not password then
return 12
elseif #user > 64 then
return 13
end
end
else
host = s
end
if host == '' then
return 14
end
-- host and port
host, count = host:gsub( ':', ':' )
if count > 1 then
return 15
elseif count == 1 then
at = host:find( ':' )
port = host:sub( at + 1, #host )
host = host:sub( 1, at - 1 )
if not host or not port then
return 16
elseif not port:match( '^[1-9]%d*$' ) or tonumber( port ) > 65535 then
return 17
end
end
-- handle host part
if #host > 253 then
return 18
end
-- getting top-level domain
at = host:match( '^.*()%.' ) -- find last dot
if not at then
return 19
end
topLevel = host:sub( at + 1, #host )
if not topLevel then
return 20
end
-- future: check of top-level domain
if uc.ip4( host ) then -- is ip4 address
return 2
elseif not mw.ustring.match( host, '^[ะ-๏%w%.%-]+%.%a%a+$' ) then
-- Thai diacritical marks ะ (0E30) - ๏ (0E4F)
return 22
elseif not host:match( '^[%w%.%-]+%.%a%a+$' ) then
return 1 -- matches domain only in UTF 8 mode
end
return 0
end
function uc.uriEncodePath( url )
local at, to = url:find( '[^/]/[^/]' )
if at then
local domain = url:sub( 1, at + 1 )
local aPath = url:sub( at + 2, #url )
url = domain .. mw.uri.encode( aPath, 'PATH' )
end
return url
end
function uc.checkUrl( frame )
local args = frame.args
local pArgs = frame:getParent().args
args.url = args.url or pArgs.url or ''
args.show = args.show or pArgs.show or ''
local result = uc.isUrl( args.url, false )
if args.show:lower() == 'msg' then
local ui = mw.loadData( 'Module:UrlCheck/i18n')
if ui[ result ] then
return ui[ result ]
else
return ui.unknown
end
end
return result
end
function uc.encodePath( frame )
local args = frame.args
local pArgs = frame:getParent().args
args.url = args.url or args[ 1 ] or pArgs.url or pArgs[ 1 ] or ''
return uc.uriEncodePath( args.url )
end
return uc