44 lines
1 KiB
Bash
44 lines
1 KiB
Bash
#!/bin/sh
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set -eu
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umask 022
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cd /srv/web/oob.foo.sh/routeros
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verbose=false
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if [ "${1:-}" = "-v" ]; then
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verbose=true
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shift
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fi
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if [ $# -gt 0 ]; then
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echo "Usage: $(basename "$0") [-v]" 1>&2
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exit 1
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fi
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packageurl="$(curl -sSf "https://mikrotik.com/download" | \
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sed -n 's/.*<a href="\(.*routeros-[0-9\.]*-arm\.npk\)"[> ].*/\1/p')"
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if [ -z "$packageurl" ]; then
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echo "ERR: Got empty package URL, exiting" 1>&2
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exit 1
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fi
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packagename="$(basename "$packageurl")"
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if [ -f "$packagename" ]; then
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"$verbose" && echo "Already up to date"
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exit 0
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fi
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checksum="$(curl -sSf "https://mikrotik.com/download" | \
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sed -n 's/.*routeros-[0-9\.]*-arm\.npk<\/td>.*<td>SHA256<\/td><td>\(.*\)<\/td>.*/\1/p')"
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echo "Downloading new package '${packagename}'"
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trap 'rm -f -- "${packagename}.tmp"' EXIT
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curl -sSf -o "${packagename}.tmp" "$packageurl"
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if [ "$(sha256sum "${packagename}.tmp" | cut -d " " -f 1)" != "$checksum" ]; then
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echo "ERR: Checksum check failed, not saving package" 1>&2
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exit 1
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fi
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mv "${packagename}.tmp" "$packagename"
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