mirror of
https://github.com/overleaf/overleaf.git
synced 2024-10-31 21:21:03 -04:00
36 lines
1 KiB
CoffeeScript
36 lines
1 KiB
CoffeeScript
BADCHAR_RX = ///
|
|
[
|
|
\/ # no slashes
|
|
\* # no asterisk
|
|
\u0000-\u001F # no control characters (0-31)
|
|
\u007F # no delete
|
|
\u0080-\u009F # no unicode control characters (C1)
|
|
\uD800-\uDFFF # no unicode surrogate characters
|
|
]
|
|
///g
|
|
|
|
BADFILE_RX = ///
|
|
(^\.$) # reject . as a filename
|
|
| (^\.\.$) # reject .. as a filename
|
|
| (^\s+) # reject leading space
|
|
| (\s+$) # reject trailing space
|
|
///g
|
|
|
|
MAX_PATH = 1024 # Maximum path length, in characters. This is fairly arbitrary.
|
|
|
|
module.exports = SafePath =
|
|
|
|
clean: (filename) ->
|
|
filename = filename.replace BADCHAR_RX, '_'
|
|
# for BADFILE_RX replace any matches with an equal number of underscores
|
|
filename = filename.replace BADFILE_RX, (match) ->
|
|
return new Array(match.length + 1).join("_")
|
|
return filename
|
|
|
|
isCleanFilename: (filename) ->
|
|
return SafePath.isAllowedLength(filename) &&
|
|
not filename.match(BADCHAR_RX) &&
|
|
not filename.match(BADFILE_RX)
|
|
|
|
isAllowedLength: (pathname) ->
|
|
return pathname.length > 0 && pathname.length <= MAX_PATH
|