64 lines
1.9 KiB
Bash
Executable File
64 lines
1.9 KiB
Bash
Executable File
#!/bin/bash
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set -e
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export PATH="/usr/bin:/bin:/usr/sbin:/sbin"
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dest=/var/run/foodoor-keys
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temp_outfile="$dest.tmp"
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if [ ! -e "${dest}/.git/config" ]
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then
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#echo "Repo does not exist, trying to clone..."
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( cd /var/run && git clone --quiet --single-branch --depth=1 ssh://git.chaospott.de/Keyverwaltung/foodoor-keys.git "${dest}" )
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else
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#echo "Repo exists, updating..."
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( cd "${dest}" && git fetch --quiet && git merge --quiet origin/master master )
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fi
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rm -f ${temp_outfile}
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find "${dest}/keys" -name '*.pub' | sort | \
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while read keyfile
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do
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ssh-keygen -l -f ${keyfile} &> /dev/null
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if [ $? -eq 0 ]; then
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valid=false
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keyinfo=$(ssh-keygen -l -f ${keyfile}) # The whole key information
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crypto=$(echo "${keyinfo}" | cut -d" " -f4) # Looks like "(RSA)" or "(ED25519)"
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key_length=$(echo "${keyinfo}" | cut -d" " -f1)
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if [ "${crypto}" == "(RSA)" ]; then
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if [ ${key_length} -lt 4096 ]; then
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echo "Key size of key ${keyfile} not equal to 4096. Not adding it to key database." >&2
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continue
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else
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valid=true
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fi
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elif [ "${crypto}" == "(ED25519)" ]; then
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valid=true
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fi
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if [ "$valid" = true ]; then
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echo "command=\"/usr/sbin/foodoor \$action \",no-port-forwarding,no-X11-forwarding,no-agent-forwarding $(cat ${keyfile} | sed 's/\r//g')" >> ${temp_outfile}
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fi
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fi
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done
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for appendix in open close door
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do
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action="$appendix"
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if [ "$appendix" = "door" ]; then
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action=""
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fi
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export action
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outfile="${dest}/authorized_keys.${appendix}"
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cat ${temp_outfile} |envsubst > ${outfile}
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# Oben und unten
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install -d -o ${appendix} -g nogroup -m 0700 /var/lib/foodoor/${appendix}/.ssh
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install -b -S .last -o ${appendix} -g nogroup -m 0600 ${outfile} /var/lib/foodoor/${appendix}/.ssh/authorized_keys
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done
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