mirror of
https://github.com/okxlin/appstore.git
synced 2026-09-23 16:01:01 +00:00
118 lines
4.2 KiB
Bash
Executable File
118 lines
4.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd -P)"
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ENV_FILE="${ENV_FILE:-${ROOT_DIR}/.env}"
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fail() {
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printf '%s\n' "$1" >&2
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exit 1
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}
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strip_matching_quotes() {
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local value="$1"
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if [[ ${#value} -ge 2 ]]; then
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if [[ "${value:0:1}" == '"' && "${value: -1}" == '"' ]]; then
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value="${value:1:${#value}-2}"
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elif [[ "${value:0:1}" == "'" && "${value: -1}" == "'" ]]; then
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value="${value:1:${#value}-2}"
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fi
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fi
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printf '%s\n' "$value"
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}
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read_env_value() {
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local key="$1"
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local value=""
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if [[ -f "$ENV_FILE" ]]; then
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value="$(grep -E "^${key}=" "$ENV_FILE" | tail -n 1 | cut -d '=' -f 2- || true)"
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fi
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strip_matching_quotes "$value"
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}
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path_is_dotenv_safe() {
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local value="$1"
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case "$value" in
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*$'\n'* | *$'\r'* | *\\* | *'$'* | *'#'* | *'"'* | *"'"*) return 1 ;;
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*) return 0 ;;
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esac
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}
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[[ -f "$ENV_FILE" ]] || fail "$ENV_FILE not found"
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[[ ! -L "$ENV_FILE" ]] || fail "$ENV_FILE must not be a symbolic link"
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if [[ ${APP_DATA_DIR+x} ]]; then
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APP_DATA_DIR_RAW="$APP_DATA_DIR"
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else
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APP_DATA_DIR_RAW="$(read_env_value APP_DATA_DIR)"
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fi
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APP_DATA_DIR_RAW="$(strip_matching_quotes "${APP_DATA_DIR_RAW:-./data}")"
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[[ -n "$APP_DATA_DIR_RAW" ]] || fail "APP_DATA_DIR must not be empty"
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path_is_dotenv_safe "$APP_DATA_DIR_RAW" || fail "APP_DATA_DIR contains unsupported dotenv characters"
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case "$APP_DATA_DIR_RAW" in
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/*)
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APP_DATA_DIR_ABS="$(realpath -m -- "$APP_DATA_DIR_RAW")"
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;;
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*)
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APP_DATA_DIR_ABS="$(realpath -m -- "${ROOT_DIR}/${APP_DATA_DIR_RAW#./}")"
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case "$APP_DATA_DIR_ABS" in
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"${ROOT_DIR}" | "${ROOT_DIR}"/*) ;;
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*) fail "Relative APP_DATA_DIR must stay inside the application directory" ;;
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esac
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;;
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esac
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[[ "$APP_DATA_DIR_ABS" != "/" ]] || fail "APP_DATA_DIR must not be the filesystem root"
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[[ ! -L "$APP_DATA_DIR_ABS" ]] || fail "APP_DATA_DIR must not be a symbolic link"
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if [[ -e "$APP_DATA_DIR_ABS" && ! -d "$APP_DATA_DIR_ABS" ]]; then
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fail "APP_DATA_DIR must be a directory"
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fi
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DRAGONFLY_PASSWORD_VALUE="${DRAGONFLY_PASSWORD:-$(read_env_value DRAGONFLY_PASSWORD)}"
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DRAGONFLY_MAX_MEMORY_VALUE="${DRAGONFLY_MAX_MEMORY:-$(read_env_value DRAGONFLY_MAX_MEMORY)}"
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DRAGONFLY_THREADS_VALUE="${DRAGONFLY_THREADS:-$(read_env_value DRAGONFLY_THREADS)}"
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DRAGONFLY_SNAPSHOT_CRON_VALUE="${DRAGONFLY_SNAPSHOT_CRON:-$(read_env_value DRAGONFLY_SNAPSHOT_CRON)}"
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[[ ${#DRAGONFLY_PASSWORD_VALUE} -ge 16 ]] || fail "DRAGONFLY_PASSWORD must be at least 16 characters"
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case "$DRAGONFLY_PASSWORD_VALUE" in
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*$'\n'* | *$'\r'*) fail "DRAGONFLY_PASSWORD must stay on one line" ;;
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esac
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DRAGONFLY_MAX_MEMORY_VALUE="${DRAGONFLY_MAX_MEMORY_VALUE,,}"
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[[ "$DRAGONFLY_MAX_MEMORY_VALUE" =~ ^[1-9][0-9]*(b|kb|mb|gb|kib|mib|gib)$ ]] || \
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fail "DRAGONFLY_MAX_MEMORY must be a memory size such as 1gb"
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MEMORY_AMOUNT="${DRAGONFLY_MAX_MEMORY_VALUE%%[a-z]*}"
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MEMORY_UNIT="${DRAGONFLY_MAX_MEMORY_VALUE#"${MEMORY_AMOUNT}"}"
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[[ ${#MEMORY_AMOUNT} -le 9 ]] || fail "DRAGONFLY_MAX_MEMORY exceeds the supported memory size range"
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[[ "$DRAGONFLY_THREADS_VALUE" =~ ^[1-9][0-9]*$ ]] || \
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fail "DRAGONFLY_THREADS must be a positive integer"
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[[ ${#DRAGONFLY_THREADS_VALUE} -le 9 ]] || fail "DRAGONFLY_THREADS must be a positive integer in the supported range"
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MEMORY_AMOUNT_DECIMAL=$((10#${MEMORY_AMOUNT}))
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THREAD_COUNT=$((10#${DRAGONFLY_THREADS_VALUE}))
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case "$MEMORY_UNIT" in
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b) MEMORY_KIB=$((MEMORY_AMOUNT_DECIMAL / 1024)) ;;
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kb | kib) MEMORY_KIB=$MEMORY_AMOUNT_DECIMAL ;;
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mb | mib) MEMORY_KIB=$((MEMORY_AMOUNT_DECIMAL * 1024)) ;;
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gb | gib) MEMORY_KIB=$((MEMORY_AMOUNT_DECIMAL * 1048576)) ;;
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*) fail "DRAGONFLY_MAX_MEMORY must use b, kb, mb, gb, kib, mib, or gib" ;;
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esac
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REQUIRED_MEMORY_KIB=$((THREAD_COUNT * 262144))
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((MEMORY_KIB >= REQUIRED_MEMORY_KIB)) || \
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fail "DRAGONFLY_MAX_MEMORY must provide at least 256 MiB per worker thread"
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[[ "$DRAGONFLY_SNAPSHOT_CRON_VALUE" =~ ^[^[:space:]]+([[:space:]]+[^[:space:]]+){4}$ ]] || \
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fail "DRAGONFLY_SNAPSHOT_CRON must contain five cron fields"
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[[ "$DRAGONFLY_SNAPSHOT_CRON_VALUE" =~ ^[0-9*/?,\ -]+$ ]] || \
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fail "DRAGONFLY_SNAPSHOT_CRON contains unsupported characters"
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mkdir -p -- "$APP_DATA_DIR_ABS"
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chown 999:999 -- "$APP_DATA_DIR_ABS"
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chmod 700 -- "$APP_DATA_DIR_ABS"
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chmod 600 -- "$ENV_FILE"
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