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mod_http_file_share: Validate that filename does not contain '/'

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Kim Alvefur 2021-01-26 14:52:37 +01:00
parent 62f77b9ac9
commit ea3b09dea8
2 changed files with 19 additions and 0 deletions
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6
plugins/mod_http_file_share.lua
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@ -36,6 +36,7 @@ end
local upload_errors = errors.init(module.name, namespace, {
access = { "auth"; "forbidden" };
filename = { "modify"; "bad-request", "Invalid filename" };
});
function may_upload(uploader, filename, filesize, filetype) -- > boolean, error
@ -44,6 +45,11 @@ function may_upload(uploader, filename, filesize, filetype) -- > boolean, error
return false, upload_errors.new("access");
end
if not filename or filename:find"/" then
-- On Linux, only '/' and '\0' are invalid in filenames and NUL can't be in XML
return false, upload_errors.new("filename");
end
return true;
end