55 lines
1.9 KiB
Bash
Executable File
55 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" ]; then
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#echo "Repo does not exist, trying to clone..."
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git -C "$dest" clone --quiet --single-branch --depth=1 ssh://git.chaospott.de/Keyverwaltung/foodoor-keys.git "$dest"
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else
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#echo "Repo exists, updating..."
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git -C "$dest" fetch --quiet && git -C "$dest" 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" -type f -name '*.pub' | sort |
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while read -r keyfile; do
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if ssh-keygen -l -f "$keyfile" &> /dev/null; then
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keyinfo=$(ssh-keygen -l -f "$keyfile") # The whole key information
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crypto=$(echo "$keyinfo" | sed 's/.*(\(.*\))/\1/') # 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 $keyfile less than 4096. Not adding it to key database." >&2
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continue
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fi
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# valid
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elif [ "$crypto" == "ED25519" ]; then
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: # valid
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else
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continue
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fi
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echo "command=\"/usr/sbin/foodoor \$action \",no-port-forwarding,no-X11-forwarding,no-agent-forwarding $(sed 's/\r//g' "$keyfile") $keyfile" >> $temp_outfile
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fi
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done
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for appendix in open close door; do
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action=$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.$appendix
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envsubst < "$temp_outfile" > "$outfile"
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# Oben und unten
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install -d -o "$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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