apiscp-borg/bin/borg-apiscp-restore
Laurence Horrocks-Barlow 3ce5bf1a47 feat(borg): repository and restore tools (Layer 1 complete)
- borg-apiscp-repo: status/init/check-access/gen-passphrase/key-status/
  backup-key/key-bundle/config-get/set/sites/run/running/prune/maintenance
  (borg compact)/verify (borg check [--data])/set-schedule/notify-test/
  list-databases. Config whitelist + single-quote escaping + newline guard,
  mirroring apiscp-kopia's security boundary.
- borg-apiscp-restore: list/list-json/site (+ --subpath)/account/system/
  restore-db/import-db and site-owner variants (owner-files/-account/
  -restore-db/-import-db) that land under /.borg-restore chowned to the owner.
  All restores are `borg extract` with computed --strip-components to rebase
  archived paths under a staging target; ACLs/xattrs come back natively.
2026-07-24 22:49:24 +01:00

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#!/bin/sh
#
# borg-apiscp-restore: restore ApisCP data from a Borg repository.
#
# Borg stores archived paths relative (leading "/" stripped) and preserves
# POSIX ACLs and xattrs natively, so restore is a plain `borg extract` with
# `--strip-components` to rebase the archived path under a staging target. No
# ACL/xattr replay is needed (that is the kopia engine's job, not Borg's).
#
# Archive naming (from the engine): siteN-shadow-{now}, siteN-info-{now},
# siteN-db-{now}, _system-{now}, _custom-<slug>-{now}. "newest" means the most
# recent archive of a given prefix.
#
# Usage:
# borg-apiscp-restore list [PREFIX]
# List archives, optionally filtered to a prefix glob (e.g. "site1").
# borg-apiscp-restore list-json PREFIX
# Raw `borg list --json` for archives matching PREFIX-* (for the module).
# borg-apiscp-restore site SITE TARGET [--subpath P ...]
# Restore SITE's newest shadow (+ info) into TARGET/{shadow,info}. With
# --subpath, restore only those paths (relative to the site root).
# borg-apiscp-restore account SITE TARGET
# Restore a whole account: files (shadow+info) plus all databases (newest
# SITE-db archive) into TARGET, databases under TARGET/databases/.
# borg-apiscp-restore system TARGET
# Restore the newest _system archive into TARGET.
# borg-apiscp-restore restore-db SITE ENGINE DB TARGET
# Restore one database dump (DB.sql) from the newest SITE-db archive into
# TARGET/ (non-destructive).
# borg-apiscp-restore import-db SITE ENGINE DB
# DESTRUCTIVE: restore the newest dump of SITE's DB and import it into the
# live database via ApisCP's native, site-context import.
# borg-apiscp-restore owner-files SITE [--subpath P ...]
# borg-apiscp-restore owner-account SITE
# borg-apiscp-restore owner-restore-db SITE ENGINE DB
# borg-apiscp-restore owner-import-db SITE ENGINE DB
# Site-owner variants: restore INTO the site's own filesystem under
# /.borg-restore/, chowned to the site owner; print the in-site path.
# SITE is supplied by the trusted site-owner module (auth context).
set -u
_self_dir=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
for _cand in \
"${APISCP_BORG_LIB:-}" \
"$_self_dir/../lib/apiscp-borg-common.sh" \
/usr/local/lib/apiscp-borg/apiscp-borg-common.sh \
/usr/lib/apiscp-borg/apiscp-borg-common.sh; do
[ -n "$_cand" ] && [ -r "$_cand" ] && { . "$_cand"; _lib_loaded=1; break; }
done
[ "${_lib_loaded:-0}" = 1 ] || { echo "FATAL: cannot find apiscp-borg-common.sh" >&2; exit 1; }
CONFIG_FILE="${APISCP_BORG_CONFIG:-/etc/apiscp-borg/config}"
# shellcheck source=/dev/null
[ -r "$CONFIG_FILE" ] && . "$CONFIG_FILE"
: "${BORG_REPO:=}"
: "${BORG_RSH:=ssh -o BatchMode=yes}"
: "${VIRTBASE:=/home/virtual}"
: "${APNSCP_CMD:=/usr/local/apnscp/bin/cmd}"
export BORG_REPO BORG_RSH
[ -n "${BORG_PASSPHRASE:-}" ] && export BORG_PASSPHRASE
# Every real command needs a repository; help/usage does not.
case "${1:-}" in
-h|--help|help|"") ;;
*) [ -n "$BORG_REPO" ] || akp_die "BORG_REPO is not set (edit $CONFIG_FILE)" ;;
esac
usage() { awk 'NR>=2 && /^set -u/{exit} NR>=2{sub(/^# ?/,""); print}' "$0"; exit "${1:-2}"; }
# Number of path components in $1 (leading/trailing slashes ignored).
_strip_for() { printf '%s' "$1" | sed 's#^/*##; s#/*$##' | awk -F/ '{print NF}'; }
# Relative (leading-slash-stripped) form of a path, as Borg stores it.
_rel() { printf '%s' "$1" | sed 's#^/*##'; }
# Newest archive name for a prefix (PREFIX-*), or empty.
_newest() { akp_borg list --glob-archives "$1-*" --last 1 --format '{archive}{NL}' 2>/dev/null | head -1; }
cmd_list() {
if [ -n "${1:-}" ]; then akp_borg list --glob-archives "$1-*"; else akp_borg list; fi
}
cmd_list_json() {
[ -n "${1:-}" ] || akp_die "list-json: PREFIX required"
akp_borg list --json --glob-archives "$1-*"
}
# Extract SITE's shadow/info into TARGET (optionally only --subpath paths).
_extract_site_files() {
_site="$1"; _target="$2"; shift 2
_subs=""
while [ $# -gt 0 ]; do case "$1" in --subpath) _subs="$_subs${2:-}
"; shift 2 ;; *) shift ;; esac; done
mkdir -p "$_target" || akp_die "cannot create $_target"
_sc=$(_strip_for "$VIRTBASE/$_site")
_any=0
for _sub in shadow info; do
_arch=$(_newest "$_site-$_sub")
[ -n "$_arch" ] || continue
if [ -n "$_subs" ] && [ "$_sub" = shadow ]; then
# Selected paths only (relative to the site root, under shadow/).
_oifs=$IFS; IFS='
'
for _sp in $_subs; do
[ -n "$_sp" ] || continue
case "$_sp" in /*|*..*) akp_warn "skip unsafe subpath $_sp"; continue ;; esac
if ( cd "$_target" && akp_borg extract --numeric-ids --strip-components "$_sc" "::$_arch" "$(_rel "$VIRTBASE/$_site")/shadow/$_sp" ); then
_any=1; akp_log "restored $_sub/$_sp"
else akp_warn "failed subpath $_sub/$_sp"; fi
done
IFS=$_oifs
else
if ( cd "$_target" && akp_borg extract --numeric-ids --strip-components "$_sc" "::$_arch" ); then
_any=1; akp_log "restored $_sub ($_arch)"
else akp_warn "failed to restore $_sub ($_arch)"; fi
fi
done
return $(( _any == 1 ? 0 : 1 ))
}
cmd_site() {
_site="${1:-}"; _target="${2:-}"; shift 2 2>/dev/null || usage 2
case "$_site" in site[0-9]*) ;; *) akp_die "site: invalid site '$_site'" ;; esac
[ -n "$_target" ] || usage 2
_extract_site_files "$_site" "$_target" "$@" || akp_die "site: nothing restored for $_site"
echo "Restored $_site to $_target. Review, then copy back into place." >&2
}
# Extract all databases (newest SITE-db archive) into TARGET/databases.
_extract_site_dbs() {
_site="$1"; _target="$2"
_arch=$(_newest "$_site-db")
[ -n "$_arch" ] || { akp_warn "no database archive for $_site"; return 1; }
mkdir -p "$_target/databases" || return 1
_sc=$(_strip_for "$VIRTBASE/$_site/fst/tmp/.apiscp-borg-db")
( cd "$_target/databases" && akp_borg extract --strip-components "$_sc" "::$_arch" ) \
&& akp_log "restored databases ($_arch) -> $_target/databases" \
|| { akp_warn "failed to restore databases for $_site"; return 1; }
}
cmd_account() {
_site="${1:-}"; _target="${2:-}"
case "$_site" in site[0-9]*) ;; *) akp_die "account: invalid site '$_site'" ;; esac
[ -n "$_target" ] || usage 2
mkdir -p "$_target" || akp_die "account: cannot create $_target"
_extract_site_files "$_site" "$_target" || akp_die "account: no file archives for $_site"
_extract_site_dbs "$_site" "$_target" || akp_warn "account: no databases restored (files only)"
echo "Restored account $_site to $_target (files + databases under databases/)." >&2
}
cmd_system() {
_target="${1:-}"; [ -n "$_target" ] || usage 2
_arch=$(_newest "_system")
[ -n "$_arch" ] || akp_die "system: no _system archive found"
mkdir -p "$_target" || akp_die "system: cannot create $_target"
( cd "$_target" && akp_borg extract --numeric-ids "::$_arch" ) || akp_die "system: extract failed"
akp_log "restored system archive $_arch -> $_target"
echo "Restored system paths to $_target. Review, then copy back into place." >&2
}
# restore-db SITE ENGINE DB TARGET: extract one dump to TARGET/DB.sql.
cmd_restore_db() {
_site="${1:-}"; _eng="${2:-}"; _db="${3:-}"; _target="${4:-}"
case "$_site" in site[0-9]*) ;; *) akp_die "restore-db: invalid site '$_site'" ;; esac
case "$_eng" in mysql|pgsql) ;; *) akp_die "restore-db: ENGINE must be mysql or pgsql" ;; esac
case "$_db" in ''|*[!A-Za-z0-9_-]*) akp_die "restore-db: invalid DB name '$_db'" ;; esac
[ -n "$_target" ] || akp_die "restore-db: TARGET required"
_arch=$(_newest "$_site-db"); [ -n "$_arch" ] || akp_die "restore-db: no database archive for $_site"
mkdir -p "$_target" || akp_die "restore-db: cannot create $_target"
_sc=$(_strip_for "$VIRTBASE/$_site/fst/tmp/.apiscp-borg-db/$_eng")
_relpath="$(_rel "$VIRTBASE/$_site")/fst/tmp/.apiscp-borg-db/$_eng/$_db.sql"
( cd "$_target" && akp_borg extract --strip-components "$_sc" "::$_arch" "$_relpath" ) \
|| akp_die "restore-db: could not extract $_eng/$_db.sql from $_arch"
[ -f "$_target/$_db.sql" ] || akp_die "restore-db: $_db.sql not found in archive"
akp_log "restored $_eng db $_db for $_site to $_target/$_db.sql"
printf '%s\n' "$_target/$_db.sql"
}
# import-db SITE ENGINE DB: restore newest dump and import into the live DB.
cmd_import_db() {
_site="${1:-}"; _eng="${2:-}"; _db="${3:-}"
case "$_site" in site[0-9]*) ;; *) akp_die "import-db: invalid site '$_site'" ;; esac
case "$_eng" in mysql|pgsql) ;; *) akp_die "import-db: ENGINE must be mysql or pgsql" ;; esac
case "$_db" in ''|*[!A-Za-z0-9_-]*) akp_die "import-db: invalid DB name '$_db'" ;; esac
_dom=$(akp_site_domain "$_site"); [ -n "$_dom" ] || akp_die "import-db: no domain for $_site"
_tmp=$(mktemp -d) || akp_die "import-db: cannot stage"
cmd_restore_db "$_site" "$_eng" "$_db" "$_tmp" >/dev/null
# ApisCP import resolves the path inside the site fs namespace: stage the dump
# under the site fst and import via the site-relative path.
_srel="/tmp/.apiscp-borg-import"; _fst=$(akp_site_fst "$_site")
[ -d "$_fst" ] || { rm -rf "$_tmp"; akp_die "import-db: site fst not found ($_fst)"; }
_stage="$_fst$_srel"; mkdir -p "$_stage" || { rm -rf "$_tmp"; akp_die "import-db: cannot stage under $_stage"; }
cp "$_tmp/$_db.sql" "$_stage/$_db.sql" || { rm -rf "$_tmp" "$_stage"; akp_die "import-db: cannot stage dump"; }
chmod 0644 "$_stage/$_db.sql" 2>/dev/null || true
akp_log "importing $_eng db $_db into $_site ($_dom) (DESTRUCTIVE)"
_rc=0; "$APNSCP_CMD" -d "$_dom" "$_eng:import" "$_db" "$_srel/$_db.sql" || _rc=1
rm -rf "$_stage" "$_tmp"
[ "$_rc" = 0 ] || akp_die "import-db: import of $_db failed"
akp_log "imported $_eng db $_db into $_site"
}
# --- site-owner variants: restore into the site's own fs, chowned ------------
_owner_target() { printf '%s%s' "$(akp_site_fst "$1")" "/.borg-restore/$2-$(date +%s)"; }
cmd_owner_files() {
_site="${1:-}"; [ $# -ge 1 ] && shift || usage 2
case "$_site" in site[0-9]*) ;; *) akp_die "owner-files: invalid site '$_site'" ;; esac
_fst=$(akp_site_fst "$_site"); [ -d "$_fst" ] || akp_die "owner-files: site fst not found"
_rel="/.borg-restore/files-$(date +%s)"; _target="$_fst$_rel"
_extract_site_files "$_site" "$_target" "$@" || { rm -rf "$_target"; akp_die "owner-files: nothing restored"; }
akp_owner_chown "$_site" "$_fst/.borg-restore" || true
printf '%s\n' "$_rel"
}
cmd_owner_account() {
_site="${1:-}"
case "$_site" in site[0-9]*) ;; *) akp_die "owner-account: invalid site '$_site'" ;; esac
_fst=$(akp_site_fst "$_site"); [ -d "$_fst" ] || akp_die "owner-account: site fst not found"
_rel="/.borg-restore/account-$(date +%s)"; _target="$_fst$_rel"
mkdir -p "$_target" || akp_die "owner-account: cannot create restore dir"
_extract_site_files "$_site" "$_target" || { rm -rf "$_target"; akp_die "owner-account: no file archives"; }
_extract_site_dbs "$_site" "$_target" || akp_warn "owner-account: no databases restored"
akp_owner_chown "$_site" "$_fst/.borg-restore" || true
printf '%s\n' "$_rel"
}
cmd_owner_restore_db() {
_site="${1:-}"; _eng="${2:-}"; _db="${3:-}"
case "$_site" in site[0-9]*) ;; *) akp_die "owner-restore-db: invalid site '$_site'" ;; esac
_fst=$(akp_site_fst "$_site"); [ -d "$_fst" ] || akp_die "owner-restore-db: site fst not found"
_rel="/.borg-restore/db-$(date +%s)"; _target="$_fst$_rel"
cmd_restore_db "$_site" "$_eng" "$_db" "$_target" >/dev/null
akp_owner_chown "$_site" "$_fst/.borg-restore" || true
printf '%s/%s.sql\n' "$_rel" "$_db"
}
cmd_owner_import_db() {
_site="${1:-}"; _eng="${2:-}"; _db="${3:-}"
case "$_site" in site[0-9]*) ;; *) akp_die "owner-import-db: invalid site '$_site'" ;; esac
cmd_import_db "$_site" "$_eng" "$_db"
}
case "${1:-}" in
list) shift; cmd_list "$@" ;;
list-json) shift; cmd_list_json "$@" ;;
site) shift; cmd_site "$@" ;;
account) shift; cmd_account "$@" ;;
system) shift; cmd_system "$@" ;;
restore-db) shift; cmd_restore_db "$@" ;;
import-db) shift; cmd_import_db "$@" ;;
owner-files) shift; cmd_owner_files "$@" ;;
owner-account) shift; cmd_owner_account "$@" ;;
owner-restore-db) shift; cmd_owner_restore_db "$@" ;;
owner-import-db) shift; cmd_owner_import_db "$@" ;;
-h|--help|help|"") usage 0 ;;
*) echo "unknown command: $1" >&2; usage 2 ;;
esac