116 lines
2.6 KiB
Lua
116 lines
2.6 KiB
Lua
|
local platform = require 'bee.platform'
|
||
|
|
|
||
|
|
---@alias uri string
|
||
|
|
|
||
|
|
local escPatt = '[^%w%-%.%_%~%/]'
|
||
|
|
|
||
|
|
local function esc(c)
|
||
|
|
return ('%%%02X'):format(c:byte())
|
||
|
|
end
|
||
|
|
|
||
|
|
local function normalize(str)
|
||
|
|
return str:gsub('%%(%x%x)', function (n)
|
||
|
|
return string.char(tonumber(n, 16))
|
||
|
|
end)
|
||
|
|
end
|
||
|
|
|
||
|
|
local m = {}
|
||
|
|
|
||
|
|
-- c:\my\files --> file:///c%3A/my/files
|
||
|
|
-- /usr/home --> file:///usr/home
|
||
|
|
-- \\server\share\some\path --> file://server/share/some/path
|
||
|
|
|
||
|
|
--- path -> uri
|
||
|
|
---@param path string
|
||
|
|
---@return uri uri
|
||
|
|
function m.encode(path)
|
||
|
|
local authority = ''
|
||
|
|
if platform.OS == 'Windows' then
|
||
|
|
path = path:gsub('\\', '/')
|
||
|
|
end
|
||
|
|
|
||
|
|
if path:sub(1, 2) == '//' then
|
||
|
|
local idx = path:find('/', 3)
|
||
|
|
if idx then
|
||
|
|
authority = path:sub(3, idx)
|
||
|
|
path = path:sub(idx + 1)
|
||
|
|
if path == '' then
|
||
|
|
path = '/'
|
||
|
|
end
|
||
|
|
else
|
||
|
|
authority = path:sub(3)
|
||
|
|
path = '/'
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
if path:sub(1, 1) ~= '/' then
|
||
|
|
path = '/' .. path
|
||
|
|
end
|
||
|
|
|
||
|
|
--lower-case windows drive letters in /C:/fff or C:/fff
|
||
|
|
local start, finish, drive = path:find '/(%u):'
|
||
|
|
if drive then
|
||
|
|
path = path:sub(1, start) .. drive:lower() .. path:sub(finish, -1)
|
||
|
|
end
|
||
|
|
|
||
|
|
local uri = 'file://'
|
||
|
|
.. authority:gsub(escPatt, esc)
|
||
|
|
.. path:gsub(escPatt, esc)
|
||
|
|
return uri
|
||
|
|
end
|
||
|
|
|
||
|
|
-- file:///c%3A/my/files --> c:\my\files
|
||
|
|
-- file:///usr/home --> /usr/home
|
||
|
|
-- file://server/share/some/path --> \\server\share\some\path
|
||
|
|
|
||
|
|
--- uri -> path
|
||
|
|
---@param uri uri
|
||
|
|
---@return string path
|
||
|
|
function m.decode(uri)
|
||
|
|
local scheme, authority, path = uri:match('([^:]*):?/?/?([^/]*)(.*)')
|
||
|
|
if not scheme then
|
||
|
|
return ''
|
||
|
|
end
|
||
|
|
scheme = normalize(scheme)
|
||
|
|
authority = normalize(authority)
|
||
|
|
path = normalize(path)
|
||
|
|
local value
|
||
|
|
if scheme == 'file' and #authority > 0 and #path > 1 then
|
||
|
|
value = '//' .. authority .. path
|
||
|
|
elseif path:match '/%a:' then
|
||
|
|
value = path:sub(2, 2):upper() .. path:sub(3)
|
||
|
|
else
|
||
|
|
value = path
|
||
|
|
end
|
||
|
|
if platform.OS == 'Windows' then
|
||
|
|
value = value:gsub('/', '\\')
|
||
|
|
end
|
||
|
|
return value
|
||
|
|
end
|
||
|
|
|
||
|
|
function m.split(uri)
|
||
|
|
return uri:match('([^:]*):/?/?([^/]*)(.*)')
|
||
|
|
end
|
||
|
|
|
||
|
|
---@param uri string
|
||
|
|
---@return boolean
|
||
|
|
function m.isValid(uri)
|
||
|
|
local scheme, authority, path = m.split(uri)
|
||
|
|
if not scheme or scheme == '' then
|
||
|
|
return false
|
||
|
|
end
|
||
|
|
if path == '' then
|
||
|
|
return false
|
||
|
|
end
|
||
|
|
return true
|
||
|
|
end
|
||
|
|
|
||
|
|
function m.normalize(uri)
|
||
|
|
if uri == '' then
|
||
|
|
return uri
|
||
|
|
end
|
||
|
|
return m.encode(m.decode(uri))
|
||
|
|
end
|
||
|
|
|
||
|
|
return m
|