14 lines
624 B
Scheme
14 lines
624 B
Scheme
(module external mzscheme
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(require (lib "servlet.ss" "web-server") (lib "defmacro.ss") "headelts.ss")
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(provide external-box check-external)
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(define external-box (box #f))
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(define (check-external show url)
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(when (unbox external-box)
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(show
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`(html (head ,hd-css ,@hd-links (title "Servlet unavailable"))
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(body (h3 (font ([color "red"]) "Servlet unavailable"))
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(p "Because the PLT Help Desk server is accepting external"
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" connections, the requested Help Desk servlet"
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(blockquote (tt ,url))
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"is not available.")))))))
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