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setup-nginx.sh
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setup-nginx.sh
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#!/bin/bash
set -euox pipefail
source '/opt/ic/bin/helpers.shlib'
readonly RUN_DIR='/run/ic-node/etc/nginx'
readonly EMPTY_NJS_EXPORTS='let v = {}; export default v; // PLACEHOLDER'
SYSTEM_DOMAINS=()
APPLICATION_DOMAINS=()
API_DOMAINS=()
function read_variables() {
local -r BN_CONFIG="${BOOT_DIR}/bn_vars.conf"
if [[ ! -d "${BOOT_DIR}" ]]; then
err "missing prober configuration directory: ${BOOT_DIR}"
exit 1
fi
if [ ! -f "${BN_CONFIG}" ]; then
err "missing domain configuration: ${BN_CONFIG}"
exit 1
fi
# Read limited set of keys. Be extra-careful quoting values as it could
# otherwise lead to executing arbitrary shell code!
while IFS="=" read -r key value; do
case "${key}" in
"system_domains") SYSTEM_DOMAINS+=("${value}") ;;
"application_domains") APPLICATION_DOMAINS+=("${value}") ;;
"api_domains") API_DOMAINS+=("${value}") ;;
"require_seo_certification") REQUIRE_SEO_CERTIFICATION="${value}" ;;
"require_underscore_certification") REQUIRE_UNDERSCORE_CERTIFICATION="${value}" ;;
esac
done <"${BN_CONFIG}"
if [[ "${#SYSTEM_DOMAINS[@]}" -eq 0 ]]; then
err "SYSTEM_DOMAINS variable not set. Nginx won't be configured."
exit 1
fi
if [[ "${#APPLICATION_DOMAINS[@]}" -eq 0 ]]; then
err "APPLICATION_DOMAINS variables not set. Nginx won't be configured."
exit 1
fi
if [[ "${#API_DOMAINS[@]}" -eq 0 ]]; then
err "API_DOMAINS variables not set but are not required. Proceeding without them."
fi
}
function copy_certs() {
local -r SNAKEOIL_PEM='/etc/ssl/certs/ssl-cert-snakeoil.pem'
local -r CERT_SRC="${BOOT_DIR}/certs"
local -r CERT_DST="${RUN_DIR}/certs"
local -r CERTS=("fullchain.pem" "chain.pem")
mkdir -p "${CERT_DST}"
for CERT in "${CERTS[@]}"; do
if [[ -f "${CERT_SRC}/${CERT}" ]]; then
echo "Using certificate ${CERT_SRC}/${CERT}"
cp "${CERT_SRC}/${CERT}" "${CERT_DST}/${CERT}"
else
echo "Using snakeoil for ${CERT}"
cp "${SNAKEOIL_PEM}" "${CERT_DST}/${CERT}"
fi
done
# Prepend certificate hash to the Service Worker as a comment.
# This should force browsers to re-download it whenever the certificate is re-issued.
#
# See for details:
# - https://github.com/w3c/ServiceWorker/issues/1523
# - https://bugs.chromium.org/p/chromium/issues/detail?id=1103551
# - https://web.dev/service-worker-lifecycle/#updates
#
# TODO: remove when the bugs are fixed
local -r SW="/var/www/html/sw.js"
local -r CERT_HASH=$(sha256sum "${CERT_DST}/fullchain.pem" | awk '{print $1}')
echo "/* ${CERT_HASH} */" >"${SW}.prefix"
cat "${SW}.prefix" "${SW}" >"${SW}.new"
mv -f "${SW}.new" "${SW}"
rm -f "${SW}.prefix"
local -r SNAKEOIL_KEY='/etc/ssl/private/ssl-cert-snakeoil.key'
local -r KEYS_SRC="${CERT_SRC}"
local -r KEYS_DST="${RUN_DIR}/keys"
local -r KEYS=("privkey.pem")
mkdir -p "${KEYS_DST}"
for KEY in "${KEYS[@]}"; do
if [[ -f "${KEYS_SRC}/${KEY}" ]]; then
echo "Using certificate ${KEYS_SRC}/${KEY}"
cp "${KEYS_SRC}/${KEY}" "${KEYS_DST}/${KEY}"
else
echo "Using snakeoil for ${KEY}"
cp "${SNAKEOIL_KEY}" "${KEYS_DST}/${KEY}"
fi
done
}
function copy_deny_list() {
local -r DENY_LIST_SRC="${BOOT_DIR}/denylist.map"
local -r DENY_LIST_DST="/var/opt/nginx/denylist/denylist.map"
if [[ -f "${DENY_LIST_DST}" ]]; then
echo "${DENY_LIST_DST} already present, skipping"
return
fi
if [[ ! -f "${DENY_LIST_SRC}" ]]; then
touch "${DENY_LIST_DST}"
else
cp "${DENY_LIST_SRC}" "${DENY_LIST_DST}"
fi
}
function setup_domains() {
local -r SYSTEM_DOMAINS_PATH="${RUN_DIR}/conf.d/system_domains.conf"
for DOMAIN in "${SYSTEM_DOMAINS[@]}"; do
local DOMAIN_ESCAPED=${DOMAIN//\./\\.}
echo "~^([^.]+\.)?(raw\.)?${DOMAIN_ESCAPED}$ 1;" >>"${SYSTEM_DOMAINS_PATH}"
done
local -r APPLICATION_DOMAINS_PATH="${RUN_DIR}/conf.d/application_domains.conf"
for DOMAIN in "${APPLICATION_DOMAINS[@]}"; do
local DOMAIN_ESCAPED=${DOMAIN//\./\\.}
echo "~^([^.]+\.)?(raw\.)?${DOMAIN_ESCAPED}$ 1;" >>"${APPLICATION_DOMAINS_PATH}"
done
local -r DOMAIN_DIR="${RUN_DIR}/conf.d"
mkdir -p "${DOMAIN_DIR}"
# Configure a fallback api-domain in case an api-domain is not specified (e.g in the case of the testnets)
local -r FALLBACK_API_DOMAIN="api.${SYSTEM_DOMAINS[0]}"
if [[ -z "${API_DOMAINS[@]}" ]]; then
API_DOMAINS+=("${FALLBACK_API_DOMAIN}")
fi
# primary domains
echo "map nop \$primary_system_domain { default ${SYSTEM_DOMAINS[0]}; }" >"${DOMAIN_DIR}/set_primary_system_domain.conf"
echo "map nop \$primary_application_domain { default ${APPLICATION_DOMAINS[0]}; }" >"${DOMAIN_DIR}/set_primary_application_domain.conf"
echo "map nop \$primary_api_domain { default ${API_DOMAINS[0]}; }" >"${DOMAIN_DIR}/set_primary_api_domain.conf"
local -r DOMAINS=(
"${SYSTEM_DOMAINS[@]}"
"${APPLICATION_DOMAINS[@]}"
)
local -A UNIQUE_DOMAINS
for DOMAIN in "${DOMAINS[@]}"; do
UNIQUE_DOMAINS[$DOMAIN]=0
done
# server names
for DOMAIN in "${!UNIQUE_DOMAINS[@]}"; do
local DOMAIN_ESCAPED=${DOMAIN//\./\\.}
echo "server_name .rosetta-exchanges.${DOMAIN};" >>"${DOMAIN_DIR}/server_rosetta_domain.conf"
echo "server_name ~^([^.]+\.${DOMAIN_ESCAPED})$;" >>"${DOMAIN_DIR}/server_domain_escaped.conf"
echo "server_name ~^([^.]+\.raw\.${DOMAIN_ESCAPED})$;" >>"${DOMAIN_DIR}/server_raw_domain_escaped.conf"
echo "server_name ${DOMAIN};" >>"${DOMAIN_DIR}/server_domain.conf"
echo "server_name raw.${DOMAIN};" >>"${DOMAIN_DIR}/server_raw_domain.conf"
done
# api domains
for DOMAIN in "${API_DOMAINS[@]}"; do
echo "server_name ${DOMAIN};" >>"${DOMAIN_DIR}/api_domain.conf"
done
}
function setup_geolite2_dbs() {
local -r BOOT_DBS="${BOOT_DIR}/geolite2_dbs"
local -r EMPTY_DBS='/etc/nginx/geoip'
local -r DBS_DST="${RUN_DIR}/geoip"
local -r DB_NAMES=(
GeoLite2-Country.mmdb
GeoLite2-City.mmdb
)
mkdir -p "${DBS_DST}"
if [[ ! -d "${BOOT_DBS}" ]]; then
err "missing geolite2 dbs dir '${BOOT_DBS}', defaulting to empty dbs '${EMPTY_DBS}'"
local -r DBS_SRC="${EMPTY_DBS}"
else
local -r DBS_SRC="${BOOT_DBS}"
fi
# Copy databases
for DB_NAME in "${DB_NAMES[@]}"; do
if [[ ! -f "${DBS_SRC}/${DB_NAME}" ]]; then
err "missing geolite2 db: ${DBS_SRC}/${DB_NAME}"
exit 1
fi
cp \
"${DBS_SRC}/${DB_NAME}" \
"${DBS_DST}/${DB_NAME}"
done
}
function setup_custom_domains() {
local -r SERVER_BLOCKS='/var/opt/nginx/domains.conf'
mkdir -p "$(dirname ${SERVER_BLOCKS})"
if [[ ! -f "${SERVER_BLOCKS}" ]]; then
touch "${SERVER_BLOCKS}"
fi
local -r DOMAIN_MAPPINGS="/var/opt/nginx/domain_canister_mappings.js"
mkdir -p "$(dirname ${DOMAIN_MAPPINGS})"
if [[ ! -f "${DOMAIN_MAPPINGS}" ]]; then
echo "${EMPTY_NJS_EXPORTS}" >"${DOMAIN_MAPPINGS}"
fi
}
function setup_pre_isolation_canisters() {
local -r SRC_CANISTERS_PATH="${BOOT_DIR}/pre_isolation_canisters.txt"
local -r DST_CANISTERS_PATH="/run/ic-node/etc/nginx/conf.d/pre_isolation_canisters.conf"
# Make sure the file exists
touch "${DST_CANISTERS_PATH}"
if [[ ! -f "${SRC_CANISTERS_PATH}" ]]; then
err "missing pre_isolation_canisters.txt file: ${SRC_CANISTERS_PATH}; continuing with an empty one"
return
fi
# Check that ID matches the regex for a canister ID
# And write to nginx config
while read id; do
echo "${id} 1;" >>"${DST_CANISTERS_PATH}"
done < <(cat "${SRC_CANISTERS_PATH}" | grep -E '^[a-z0-9-]{27}$')
}
function setup_canister_id_alises() {
local -r CANISTER_ID_ALIASES_DIR="/var/opt/nginx/canister_aliases"
local -r CANISTER_ID_ALIASES_PATH="${CANISTER_ID_ALIASES_DIR}/canister_id_aliases.js"
mkdir -p "${CANISTER_ID_ALIASES_DIR}"
cat >"${CANISTER_ID_ALIASES_PATH}" <<EOF
let CANISTER_ID_ALIASES = {
dscvr: "h5aet-waaaa-aaaab-qaamq-cai",
identity: "rdmx6-jaaaa-aaaaa-aaadq-cai",
nns: "qoctq-giaaa-aaaaa-aaaea-cai",
personhood: "g3wsl-eqaaa-aaaan-aaaaa-cai",
};
export default CANISTER_ID_ALIASES;
EOF
}
function setup_cgi() {
cat >"/run/ic-node/etc/nginx/conf.d/cgi.conf" <<EOF
# Setup server for the cgi
server {
listen 80;
listen [::]:80;
# Fast cgi support from fcgiwrap
include /etc/nginx/fcgiwrap.conf;
}
EOF
}
function main() {
read_variables
copy_certs
copy_deny_list
setup_domains
setup_geolite2_dbs
setup_custom_domains
setup_pre_isolation_canisters
setup_canister_id_alises
setup_cgi
}
main "$@"