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Fix a potential ~ expansion issue in httpd-clean-path. #2

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Fix a potential ~ expansion issue in httpd-clean-path. #2

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9 changes: 6 additions & 3 deletions httpd.el
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Original file line number Diff line number Diff line change
Expand Up @@ -228,9 +228,12 @@
(httpd-send-buffer proc (current-buffer))))

(defun httpd-clean-path (path)
"Clean dangerous .. from the path."
(mapconcat 'identity
(delete ".." (split-string (url-unhex-string path) "\\/")) "/"))
"Clean dangerous .. and ~ from the path and remove the leading /."
(let* ((split (delete ".." (split-string path "/")))
(unsplit (mapconcat 'identity (delete "" split) "/")))
(if (and (> (length unsplit) 0) (eql ?~ (aref unsplit 0)))
(concat "./" unsplit)
unsplit)))

(defun httpd-get-ext (path)
"Get extention from path to determine MIME type."
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