mirror of
https://github.com/okxlin/appstore.git
synced 2026-09-23 08:01:00 +00:00
119 lines
3.5 KiB
Bash
Executable File
119 lines
3.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd -P)"
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APP_ROOT_DIR="$(dirname "$ROOT_DIR")"
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ENV_FILE="${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}=" "$ENV_FILE" | tail -n 1 | cut -d '=' -f 2- || true)"
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fi
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value="${value%$'\r'}"
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strip_matching_quotes "$value"
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}
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set_env_value() {
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local key="$1"
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local value="$2"
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local temp_file
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temp_file="$(mktemp "${ENV_FILE}.tmp.XXXXXX")"
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awk -v key="$key" -v value="$value" '
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BEGIN { updated = 0 }
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$0 ~ ("^" key "=") {
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if (!updated) {
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print key "=" value
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updated = 1
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}
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next
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}
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{ print }
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END {
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if (!updated) print key "=" value
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}
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' "$ENV_FILE" >"$temp_file"
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chmod 600 "$temp_file"
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mv -f -- "$temp_file" "$ENV_FILE"
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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 "Environment file not found: ${ENV_FILE}"
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[[ ! -L "$ENV_FILE" ]] || fail "Environment file must not be a symbolic link"
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[[ "$(id -u)" -eq 0 ]] || fail "HitKeep init must run as root"
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if [[ ${HITKEEP_DATA_DIR+x} ]]; then
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DATA_DIR_RAW="$HITKEEP_DATA_DIR"
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else
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DATA_DIR_RAW="$(read_env_value HITKEEP_DATA_DIR)"
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fi
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DATA_DIR_RAW="$(strip_matching_quotes "${DATA_DIR_RAW:-./data}")"
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[[ -n "$DATA_DIR_RAW" ]] || fail "HITKEEP_DATA_DIR must not be empty"
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path_is_dotenv_safe "$DATA_DIR_RAW" || fail "HITKEEP_DATA_DIR contains unsupported dotenv characters"
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if [[ "$DATA_DIR_RAW" = /* ]]; then
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[[ ! -L "$DATA_DIR_RAW" ]] || fail "HITKEEP_DATA_DIR must not be a symbolic link"
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DATA_DIR_ABS="$(realpath -m -- "$DATA_DIR_RAW")"
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[[ "$DATA_DIR_ABS" != "/" ]] || fail "HITKEEP_DATA_DIR must not be the filesystem root"
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else
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CONTAINER_NAME_VALUE="$(read_env_value CONTAINER_NAME)"
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[[ "$CONTAINER_NAME_VALUE" =~ ^[A-Za-z0-9._-]+$ ]] || \
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fail "CONTAINER_NAME contains unsupported characters"
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RETAINED_ROOT="${APP_ROOT_DIR}/retained-data"
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[[ ! -L "$RETAINED_ROOT" ]] || fail "The retained data root must not be a symbolic link"
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RETAINED_INSTANCE_ROOT="${RETAINED_ROOT}/${CONTAINER_NAME_VALUE}"
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[[ ! -L "$RETAINED_INSTANCE_ROOT" ]] || fail "The retained instance root must not be a symbolic link"
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DATA_DIR_PATH="${RETAINED_INSTANCE_ROOT}/${DATA_DIR_RAW#./}"
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[[ ! -L "$DATA_DIR_PATH" ]] || fail "HITKEEP_DATA_DIR must not be a symbolic link"
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RETAINED_INSTANCE_ABS="$(realpath -m -- "$RETAINED_INSTANCE_ROOT")"
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DATA_DIR_ABS="$(realpath -m -- "$DATA_DIR_PATH")"
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case "$DATA_DIR_ABS" in
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"${RETAINED_INSTANCE_ABS}"/*) ;;
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*) fail "Relative HITKEEP_DATA_DIR must remain inside the isolated retained-data directory" ;;
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esac
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set_env_value HITKEEP_DATA_DIR "\"${DATA_DIR_ABS}\""
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fi
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if [[ -e "$DATA_DIR_ABS" && ! -d "$DATA_DIR_ABS" ]]; then
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fail "HITKEEP_DATA_DIR must be a directory"
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fi
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if [[ ! -e "$DATA_DIR_ABS" ]]; then
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install -d -m 0750 -- "$DATA_DIR_ABS"
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chown 65532:65532 -- "$DATA_DIR_ABS"
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fi
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[[ "$(stat -c '%u:%g' "$DATA_DIR_ABS")" == "65532:65532" ]] || \
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fail "HITKEEP_DATA_DIR must be owned by UID/GID 65532:65532"
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