143 lines
5.6 KiB
Bash
Executable File
143 lines
5.6 KiB
Bash
Executable File
#!/bin/bash
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# FILE: wgapi:back/api/dashboard/add
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# DESCRIPTION: Add a new peer
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# USAGE: add ip querystring
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# ERRORS:
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# 3: bad args/usage
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# 4: vars file not found
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# 5: Wireguard not installed
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# 6: Hostname in use
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# 7: Hostname too short
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# 8: Invalid token
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# 9: Token file not found
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# 10: Failed to get peer data from wg
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# 11: Failed to generate new IPs
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# 12: Servers file doesn't exist
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# 15: Failed to add user to local wireguard
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# 16: Failed to add user to federated server
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# 17: User not found
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CONFIG_FILE='/etc/wgapi/config'
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SERVERS_FILE='/etc/wgapi/servers'
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[ ${#} -eq 2 ] || exit 3
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[ -x '/usr/bin/wg' ] || exit 5
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[ -f "${CONFIG_FILE}" ] || exit 4
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[ -f "${SERVERS_FILE}" ] || exit 12
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source "${CONFIG_FILE}"
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[ -f "${TOKENS_FILE}" ] || exit 9
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ip="${1}"
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qs="$(<<<"${2}" tr '&' '\n' | sed 's/?//')"
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# Check hostname
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hostname="$(<<<"${qs}" grep -oP 'name=(.*)' | sed 's/^name//' | xargs | tr -dc 'a-z0-9' | head -c10)"
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printf '%s requested new peer with hostname %s\n' "${ip}" "${hostname}" >>"${LOGFILE}"
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[[ ${#hostname} -ge 3 ]] || (
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printf 'Rejecting hostname %s because it is too short.\n' "${hostname}" >>"${LOGFILE}"
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printf 'Hostname too short\n' | "${LIB_DIR}/http_res" 400
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exit 7
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)
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# Check token
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token_fail(){
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printf 'Rejecting %s request for new peer due to %s token\n' "${ip}" "${1}" >>"${LOGFILE}"
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printf 'Invalid token\n' | "${LIB_DIR}/http_res" 403
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exit 8
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}
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saved_token="$(grep "${ip}" "${TOKENS_FILE}" | cut -f2)"
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[ "${saved_token}" == "" ] && token_fail 'missing'
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<<<"${qs}" grep -x "t=${saved_token}" || token_fail 'mismatched'
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printf '%s token was valid\n' "${ip}" >>"${LOGFILE}"
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# Check user
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username="$("${LIB_DIR}/ns_lookup_rdns" "${REMOTE_ADDR}" | cut -d'.' -f2)" || (
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printf 'User not found for %s\n' "${REMOTE_ADDR}" >>"${LOGFILE}"
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printf 'User not found' | "${LIB_DIR}/http_res" 403
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exit 17
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)
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printf '%s identified as %s\n' "${ip}" "${username}" >>"${LOGFILE}"
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domain="${hostname}.${username}.${TLD}"
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# Check if new peer already exists
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printf '%s' "${hostnames}" | grep -o "${hostname}" && (
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printf '%s.%s.%s already exists!\n' "${hostname}" "${username}" "${TLD}" >>"${LOGFILE}"
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printf 'Hostname %s already exists!\n' "${hostname}" | "${LIB_DIR}/http_res" 409
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exit 6
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)
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domain="${hostname:?}.${username:?}.${TLD:?}"
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printf 'New domain will be %s\n' "${domain}" >>"${LOGFILE}"
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# Collect/parse existing peer data
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# Create new IPs
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peers="$("${LIB_DIR}/wg_peer_list" "${1}" tsv)" || exit 10
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hostnames="$(<<<"${peers}" awk '{print $1}' | cut -d'.' -f1)"
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ipv4s="$(<<<"${peers}" awk '{print $2}')"
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ipv6s="$(<<<"${peers}" awk '{print $3}')"
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usernumber="$(<<<"${ipv4s}" head -n1 | cut -d'.' -f3)"
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# Increment hostnumber from 1 until an unused one is found
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used_hostnumbers="$(<<<"${ipv4s}" cut -d'.' -f4 | sort | uniq)"
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hostnumber=1; while <<<"${used_hostnumbers}" grep "${hostnumber}"
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do ((hostnumber++))
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done
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ipv4="${IPV4_NET%.*.*}.${usernumber}.${hostnumber}"
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ipv6="${IPV6_NET%:*:*}:${usernumber}:${hostnumber}"
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printf 'IP addresses for %s created: %s %s\n' "${domain:?}" "${ipv4:?}" "${ipv6:?}" \
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>>"${LOGFILE}" || (
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printf 'ERROR! Failed to create IP addresses for %s!' "${domain}" >>"${LOGFILE}"
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exit 11
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)
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# TODO: Check it or exit 11
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# Create wg config
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privkey="$(/usr/bin/wg genkey)"
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pubkey="$(echo "${privkey}" | /usr/bin/wg pubkey)"
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address="${ipv4}/${IPV4_NET##*/},${ipv6}/${IPV6_NET##*/}"
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server_blocks=''
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# TODO: Do this loop in parallel
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while IFS=$'\t' read -r server_hostname server_ipv4 server_ipv6 server_pubkey server_endpoint server_admin server_secret; do
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[[ ${server_hostname:0:1} = \# ]] && continue # Ignore comments
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server_psk="$(/usr/bin/wg genpsk)"
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server_blocks="${server_blocks}\n[Peer] # ${server_hostname}.${TLD}\nPublicKey=${server_pubkey}\nPresharedKey=${server_psk}\nAllowedIPs=${server_ipv4}/32,${server_ipv6}/128\nEndpoint=${server_endpoint}\n"
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if [ "${server_hostname}" == "${LOCAL_SERVER}" ]
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# Add new user to local server
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then printf 'Adding %s to local wireguard server... ' "${domain}" >>"${LOGFILE}"
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if "${LIB_DIR}/wg_peer_add" "${pubkey}" "${server_psk}" "${ipv4}/32,${ipv6}/128"; then
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printf 'success.\n' >>"${LOGFILE}"
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else
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printf 'failed!\n' >>"${LOGFILE}"
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# TODO: clear existing progress
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exit 15
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fi
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# Send new user config to federated server
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else printf 'Sending %s to remote wireguard server %s... ' "${domain}" "${server_hostname}" >>"${LOGFILE}"
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#if "${LIB_DIR}/fed_add" "${server_admin}" "${pubkey}" "${server_psk}" "${ipv4}/32,${ipv6}/128" "${server_secret}"; then
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printf 'success.\n' >>"${LOGFILE}"
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#else
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# printf 'failed!\n' >>"${LOGFILE}"
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# # TODO: clear existing progress
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# exit 16
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#fi
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fi
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done <"${SERVERS_FILE}"
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wg_config="[Interface] # ${hostname}.${username}.${TLD}\nPrivateKey=${privkey}\nAddress=${address}\n${WG_DNS}\n${server_blocks}"
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# Respond to user
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# Do it before updating nameserver and certs because
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# if wireguard worked, there's no going back. The admin
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# can clean up missing records and certs after checking the logs
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set -x
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<<<"${wg_config}" "${LIB_DIR}/http_res" 202
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set +x
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# Update nameserver
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if "${LIB_DIR}/ns_update_add" "${domain}" "${ipv4}" "${ipv6}"
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then printf 'Successfully added %s %s %s to DNS server.\n' "${domain}" "${ipv4}" "${ipv6}" >>"${LOGFILE}"
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else printf 'ERROR! Failed to add %s %s %s to DNS server!\n' "${domain}" "${ipv4}" "${ipv6}" >>"${LOGFILE}"
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fi
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# Create SSL cert
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if "${LIB_DIR}/ssl_peer_add" "${hostname}" "${username}" "IP:${ipv4},IP:${ipv6}"
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then printf 'Successfully signed SSL certs for %s,%s,%s.\n' "${domain}" "${ipv4}" "${ipv6}" >>"${LOGFILE}"
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else printf 'ERROR! Failed to create certs for %s with IPS: %s %s!\n' "${domain}" "${ipv4}" "${ipv6}" >>"${LOGFILE}"
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fi
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