107 lines
4.3 KiB
Bash
Executable File
107 lines
4.3 KiB
Bash
Executable File
#!/bin/bash
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# FILE: admin/user/del
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# DESCRIPTION: Delete a user from admin UI
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# USAGE: del $remote_ip $querystring
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# QUERYSTRING: ?t=$token&user=$username&un=$usernumber
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source /etc/wagon/config
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ip="${1}"; qs="$(<<<"${2}" tr '&' '\n' | sed 's/?//')"
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# Check token
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token_fail(){
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printf 'Rejecting admin %s request for new peer due to %s token\n' "${ip}" "${1}" >&2
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printf 'Invalid token\n' | /usr/lib/wagon/http_res 403; exit
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}
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saved_token="$(grep "${ip}" /var/local/wagon/tokens | cut -f2)"
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[ "${saved_token}" == "" ] && token_fail 'missing'
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<<<"${qs}" grep -qx "t=${saved_token}" || token_fail 'mismatched'
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printf '%s token was valid\n' "${ip}" >&2
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# Check username and usernumber
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username="$(<<<"${qs}" grep -oP 'user=(.*)' | sed 's/^user=//')"
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usernumber="$(<<<"${qs}" grep -oP 'un=(.*)' | sed 's/^un=//')"
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if [[ "${username}" == "" ]]; then
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printf 'ERROR! Username missing!\n' | tee >(cat 1>&2) | /usr/lib/wagon/http_res 400; exit
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elif [[ "${usernumber}" == "" ]]; then
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printf 'ERROR! Usernumber missing!\n' | tee >(cat 1>&2) |/usr/lib/wagon/http_res 400; exit
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else
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printf 'Admin %s requested deletion of user "%s" with usernumber "%s"\n' "${ip}" "${username}" "${usernumber}" >&2
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fi
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# Get all peer IPs
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if ! wg_output="$(sudo /usr/bin/wg show "${TLD}" allowed-ips)"; then
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printf 'ERROR! Wireguard failed!\n' >&2
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/usr/lib/wagon/http_res 500; exit
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fi
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# Filter out the user's
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user_peers="$(grep "${IPV4_NET%.*.*}.${usernumber}." <<<"${wg_output}" 2>/dev/null)"
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if [ "${user_peers}" == "" ]; then
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printf "ERROR! Couldn't find any peers for %s!\n" "${IPV4_NET%.*.*}.${usernumber}." >&2
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/usr/lib/wagon/http_res 500; exit
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fi
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# Get user peer domains
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if ! peers="$(/usr/lib/wagon/ips_to_peers tsv <<<"${user_peers}")"; then
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printf 'ERROR! Failed to retrieve domains for peers for %s!\n' "${IPV4_NET%.*.*}.${usernumber}" >&2
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/usr/lib/wagon/http_res 500; exit
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fi
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# Run this function in parallel in the while loop below
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# https://stackoverflow.com/a/33058618
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for_server_do() {
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[[ ${server_hostname:0:1} = \# ]] && return # Ignore comments
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server_hostname="${1}"; server_ipv4="${2}"; server_ipv6="${3}"; server_pubkey="${4}"
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server_endpoint="${5}"; server_url="${6}"; server_secret="${7}"
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if [ "${server_hostname}" == "${LOCAL_SERVER}" ]; then
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# Local server
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if /usr/lib/wagon/wg_peer_del "${pubkey}"; then
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printf 'Deleted %s from local wireguard server.\n' "${domain}" >&2
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else
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printf 'ERROR! Failed to delete %s from local wireguard server!\n' "${domain}" >&2
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# TODO: clear existing progress
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/usr/lib/wagon/http_res 500; exit
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fi
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else
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# Federated server
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if /usr/lib/wagon/fed_peer_del "${server_url}" "${server_secret}" "${pubkey}"; then
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printf 'Deleted %s from remote wireguard server %s.\n' "${domain}" "${server_hostname}" >&2
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else
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printf 'ERROR! Failed to delete %s from remote wireguard server %s!\n' "${domain}" "${server_hostname}" >&2
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/usr/lib/wagon/http_res 500; exit
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fi
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fi
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}
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# Delete user peers (in parallel)
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delete_peer() {
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domain="${1}"; ipv4="${2}"; ipv6="${3}"; pubkey="${4}"
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username="$(<<<"${domain}" cut -d'.' -f2)"
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printf 'Deleting peer %s\n' "${domain}" >&2
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# Remove peer from wireguard
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while IFS=$'\t' read -r server_hostname server_ipv4 server_ipv6 server_pubkey server_endpoint server_url server_secret
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do for_server_do "${server_hostname}" "${server_ipv4}" "${server_ipv6}" "${server_pubkey}" "${server_endpoint}" "${server_url}" "${server_secret}" &
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done </etc/wagon/servers &
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# Remove peer from nameserver
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if /usr/lib/wagon/ns_update_del "${domain:?}" "${ipv4:?}" "${ipv6:?}"
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then printf 'Successfully deleted %s from DNS server.\n' "${domain}" >&2
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else printf 'ERROR! Failed to delete %s %s %s from DNS server!\n' "${domain}" "${ipv4}" "${ipv6}" >&2
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fi
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}
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printf '%s\n' "${peers}" | while IFS=$'\t' read -r domain ipv4 ipv6 pubkey
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do delete_peer "${domain}" "${ipv4}" "${ipv6}" "${pubkey}" &
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[ "$(jobs | wc -l)" -ge "$(nproc)" ] && wait
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done
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# Delete SSL cert directory
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if ! sudo rm -rf "${SSL_CONFIG_DIR:?}/${username:?}/"; then
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printf 'Failed to delete user SSL directory %s/%s/:\n' "${SSL_CONFIG_DIR}" "${username}" >&2
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fi
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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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printf 'Deleted %s' "${username}" | /usr/lib/wagon/http_res 202 |