2022-09-06 20:57:41 -06:00
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#!/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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2022-09-08 14:39:59 -06:00
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# 11: Failed to generate new IPs
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2022-09-06 20:57:41 -06:00
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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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CONFIG_FILE='/etc/wgapi/config'
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SERVERS_FILE='/etc/wgapi/servers'
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[ ${#} -eq 2 ] || exit 3
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[ -f "${CONFIG_FILE}" ] || exit 4
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[ -f "${SERVERS_FILE}" ] || exit 12
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source "${CONFIG_FILE}"
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2022-09-08 14:44:55 -06:00
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[ -f "${TOKENS_FILE}" ] || exit 9
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2022-09-08 14:04:01 -06:00
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ip="${1}"
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2022-09-06 20:57:41 -06:00
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# Check hostname
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hostname="$(printf ${2}\n | jq -r '.name' | xargs | tr -dc '[a-z0-9]' | head -c10)"
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2022-09-08 14:04:01 -06:00
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printf "${ip} requested new peer with hostname ${hostname}\n" >>"${LOGFILE}"
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2022-09-06 20:57:41 -06:00
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[[ ${#hostname} -ge 3 ]] || (
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2022-09-08 14:04:01 -06:00
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printf "Rejecting hostname ${hostname} because it's too short.\n" >>"${LOGFILE}"
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printf 'Hostname too short\n' | "${LIB_DIR}/http_res" 400
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2022-09-06 20:57:41 -06:00
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exit 7
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)
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2022-09-08 14:04:01 -06:00
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# Check token
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token_fail(){
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printf "Rejecting ${ip} request for new peer due to ${1} token\n" >>"${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 "${1}" "${TOKENS_FILE}" | cut -f2)
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[ "${saved_token}" == "" ] && token_fail 'missing'
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<<<"${username}" grep "t=${saved_token}" || token_fail 'mismatched'
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# Check user
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2022-09-06 20:57:41 -06:00
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username="$(${LIB_DIR}/ns_lookup_rdns ${REMOTE_ADDR} | cut -d'.' -f2)"
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[ $? -ne 0 ] && (
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2022-09-08 14:04:01 -06:00
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printf "\n" >>"${LOGFILE}"
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2022-09-06 20:57:41 -06:00
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printf 'User not found' | "${LIB)DIR}/http_res" 403
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exit 403
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2022-09-08 14:04:01 -06:00
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) || printf "${ip} identified as ${username} ${hostname}\n" >>"${LOGFILE}"
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domain="${hostname}.${username}.${TLD}"
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2022-09-06 20:57:41 -06:00
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# Check if new peer already exists
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printf "${hostnames}" | grep "${hostname}" && (
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2022-09-08 14:04:01 -06:00
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printf "${hostname}.${username}.${TLD} already exists, sending 409...\n" >>"${LOGFILE}"
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printf "Hostname ${hostname} already exists!\n" | "${LIB_DIR}/http_res" 409
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2022-09-06 20:57:41 -06:00
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exit 6
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)
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# Collect/parse existing peer data
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2022-09-08 14:04:01 -06:00
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# Create new IPs
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2022-09-06 20:57:41 -06:00
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peers="$(sudo ${LIB_DIR}/wg_peer_list ${1} tsv)"
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[ ${?} -ne 0 ] && exit 10
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hostnames="$(printf "${peers}" | awk '{print $0}' | cut -d'.' -f1)"
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ipv4s="$(printf "${peers}" | awk '{print $1}')"
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ipv6s="$(printf "${peers}" | awk '{print $2}')"
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usernumber="$(printf ${ipv4s} head -n1 | cut -d'.' -f3)"
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used_ips="$(printf ${ipv4s} | cut -d'.' -f3)\n$(printf ${ipv6s} | cut -d'.' -f3)"
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used_hostnumbers="$(printf ${used_ipvs} | sort | uniq)"
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hostnumber=1
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while printf "${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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2022-09-08 14:04:01 -06:00
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printf "IP addresses for ${domain} created:\t${ipv4} ${ipv6} \n" >>"${LOGFILE}"
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2022-09-06 20:57:41 -06:00
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# TODO: Check it or exit 11
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# Create wg config
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#TODO Check for /usr/bin/wg binary
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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}/${IPV6_NET##*/}"
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server_blocks=''
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2022-09-08 14:39:59 -06:00
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while IFS=$' ' read -r server_hostname server_ipv4 server_ipv6 server_pubkey server_endpoint server_admin server_secret; do
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2022-09-06 20:57:41 -06:00
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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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2022-09-08 14:04:01 -06:00
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then printf "Adding ${domain} to local server..." >>"${LOGFILE}"
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#"${LIB_DIR}/wg_peer_add" "${pubkey}" "${server_psk}" "${ipv4}/32,${ipv6}/128"
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true
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[ ${?} -ne 0 ] && (
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printf 'Failed to add new peer ${ipv4} to local server!' >>"${LOGFILE}"
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# TODO: clear existing progress and exit 15
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)
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2022-09-06 20:57:41 -06:00
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# Send new user config to federated server
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2022-09-08 14:04:01 -06:00
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else printf "Sending ${domain} to remote server ${server_hostname}..." >>"${LOGFILE}"
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#"${LIB_DIR}/fed_add" "${server_admin}" "${pubkey}" "${server_psk}" "${ipv4}/32,${ipv6}/128" "${server_secret}"
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true
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[ ${?} -ne 0 ] && (
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printf 'Failed to add new peer ${ipv4} to federated server ${server_hostname}!' >>"${LOGFILE}"
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# TODO: clear existing progress and exit 16
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)
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2022-09-06 20:57:41 -06:00
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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${server_blocks}"
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# Respond to user
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2022-09-08 14:04:01 -06:00
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# Do it before updating nameserver and certs because
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# if wireguard worked, there's no going back. The admin
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# can clean up missing records and certs after checking the logs
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2022-09-06 20:57:41 -06:00
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printf "${wg_config}" | "${LIB_DIR}/http_res"
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# Update nameserver
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2022-09-08 14:04:01 -06:00
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#"${LIB_DIR}/ns_update_add" "${domain}" "${ipv4}" "${ipv6}"
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true
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[ ${?} -ne 0 ] && printf "Failed to add ${domain} ${ipv4} ${ipv6} to DNS server!" >>"${LOGFILE}"
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2022-09-06 20:57:41 -06:00
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# Create SSL cert
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2022-09-08 14:04:01 -06:00
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#sudo "${LIB_DIR}/ssl_peer_add" "${hostname}" "${username}" "IP:${ipv4},IP:${ipv6}"
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true
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[ ${?} -ne 0 ] && printf "Failed to create certs for ${domain} with IPS: ${ipv4} ${ipv6}!" >>"${LOGFILE}"
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