23 lines
580 B
Bash
23 lines
580 B
Bash
#!/bin/bash
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send_headers() {
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local timestamp do_exit header thisdate expiredate
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read timestamp < <(stat -c %Y $0 "$rrdfile" lib/* |sort -r)
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thisdate=$(LC_ALL=C TZ=GMT date +'%a, %d %b %Y %X %Z' -d @$timestamp)
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expiredate=$(LC_ALL=C TZ=GMT date +'%a, %d %b %Y %X %Z' -d '+1 minute')
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if [[ $thisdate == $HTTP_IF_MODIFIED_SINCE ]]
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then
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echo "Status: 304 Not Modified"
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do_exit=1
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fi
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echo "Last-Modified: $thisdate"
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echo "Expires: $expiredate"
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echo "Cache-Control: must-revalidate, max-age=60"
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while read header
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do
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echo "$header"
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done
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echo
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(( do_exit )) && exit
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}
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