wgctl/commands/block/helpers.sh
Nuno Duque Nunes f61bc59446 feat: block/unblock migration, help.sh optimization
- commands/block/: block.sh, show.sh, helpers.sh
- commands/unblock/: unblock.sh, show.sh, helpers.sh
- flag::define array type: --ip[], --subnet[], --port[], --service[]
- help.sh: use pre-cached _FLAG_C_* arrays instead of flag::_parse_constraints
- remove flag::_parse_constraints/flag::_constraint_get calls from help.sh
- adopt local var; var=value pattern for safe assignment
2026-05-30 12:31:41 +00:00

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#!/usr/bin/env bash
# commands/block/helpers.sh
# cmd::block::_impl <name> <identity> <type> <block_name> <reason>
# <quiet> <force>
# <ips_nameref> <subnets_nameref> <ports_nameref> <services_nameref>
function cmd::block::_impl() {
local name="$1" identity="$2" type="$3" block_name="$4" reason="$5"
local quiet="$6" force="$7"
local -n _ips_ref="$8"
local -n _subnets_ref="$9"
local -n _ports_ref="${10}"
local -n _services_ref="${11}"
# --identity: block all peers for this identity
if [[ -n "$identity" ]]; then
cmd::block::_block_identity "$identity" "$quiet" \
"${_ips_ref[@]+"${_ips_ref[@]}"}" || return 1
return 0
fi
[[ -z "$name" ]] && {
log::error "Missing required flag: --name or --identity"
return 1
}
name=$(peers::resolve_and_require "$name" "$type") || return 1
local client_ip
client_ip=$(peers::get_ip "$name") || return 1
# Full block if no specific targets
if [[ ${#_ips_ref[@]} -eq 0 && ${#_ports_ref[@]} -eq 0 && \
${#_subnets_ref[@]} -eq 0 && ${#_services_ref[@]} -eq 0 ]]; then
if peers::is_blocked "$name"; then
log::wg_warning "Client is already blocked: ${name}"
return 0
fi
monitor::update_endpoint_cache
cmd::block::_block_all "$name" "$client_ip" "$quiet"
cmd::block::_record_history "$name" "full" "manual" "$reason"
return 0
fi
# Specific rules
if block::has_file "$name"; then
local direct
direct=$(block::is_blocked_direct "$name")
if [[ "$direct" == "true" ]]; then
log::wg_warning "${name} is fully blocked — unblock first to add specific rules"
return 1
fi
fi
local changed=false
for ip in "${_ips_ref[@]:-}"; do
ip::require_valid "$ip"
fw::block_ip "$client_ip" "$ip"
block::add_rule "$name" "$client_ip" "ip" "${block_name:-}" "$ip"
$quiet || log::wg_success "${ip} has been blocked for ${name}"
done
for subnet in "${_subnets_ref[@]:-}"; do
ip::require_valid "$subnet"
fw::block_subnet "$client_ip" "$subnet"
block::add_rule "$name" "$client_ip" "subnet" "${block_name:-}" "$subnet"
$quiet || log::wg_success "${subnet} has been blocked for ${name}"
done
for entry in "${_ports_ref[@]:-}"; do
local b_target b_port b_proto
IFS=":" read -r b_target b_port b_proto <<< "$entry"
ip::require_valid "$b_target"
fw::block_port "$client_ip" "$b_target" "$b_port" "${b_proto:-tcp}"
block::add_rule "$name" "$client_ip" "port" "${block_name:-}" \
"$b_target" "$b_port" "${b_proto:-tcp}"
$quiet || log::wg_success "${b_target}:${b_port}:${b_proto:-tcp} has been blocked for ${name}"
done
for svc in "${_services_ref[@]:-}"; do
local resolved_lines=()
mapfile -t resolved_lines < <(net::resolve "$svc" 2>/dev/null)
if [[ ${#resolved_lines[@]} -eq 0 ]]; then
log::error "Service not found or has no ports: ${svc}"
return 1
fi
local already_blocked=true
for resolved in "${resolved_lines[@]}"; do
if [[ "$resolved" == *:*:* ]]; then
local b_ip b_port b_proto
IFS=":" read -r b_ip b_port b_proto <<< "$resolved"
fw::has_block_rule "$client_ip" "$b_ip" "$b_port" "$b_proto" 2>/dev/null || \
{ already_blocked=false; break; }
else
fw::has_block_rule "$client_ip" "$resolved" 2>/dev/null || \
{ already_blocked=false; break; }
fi
done
if $already_blocked; then
$quiet || log::wg_warning "${svc} is already blocked for ${name}"
continue
fi
for resolved in "${resolved_lines[@]}"; do
if [[ "$resolved" == *:*:* ]]; then
local b_ip b_port b_proto
IFS=":" read -r b_ip b_port b_proto <<< "$resolved"
fw::block_port "$client_ip" "$b_ip" "$b_port" "$b_proto"
block::add_rule "$name" "$client_ip" "port" "$svc" \
"$b_ip" "$b_port" "$b_proto"
else
fw::block_ip "$client_ip" "$resolved"
block::add_rule "$name" "$client_ip" "ip" "$svc" "$resolved"
fi
done
changed=true
$quiet || log::wg_success "${svc} has been blocked for ${name}"
done
[[ ${#_ips_ref[@]} -gt 0 || ${#_ports_ref[@]} -gt 0 || \
${#_subnets_ref[@]} -gt 0 ]] && changed=true
if $changed; then
local peer_rule
peer_rule=$(peers::get_meta "$name" "rule")
if [[ -n "$peer_rule" ]] && rule::exists "$peer_rule"; then
fw::flush_peer "$client_ip"
rule::apply "$peer_rule" "$client_ip" "$name"
block::restore_rules_for "$name" "$client_ip"
fi
fi
local btype="specific"
[[ ${#_services_ref[@]} -gt 0 ]] && btype="${_services_ref[0]}"
[[ ${#_ips_ref[@]} -gt 0 ]] && btype="ip"
[[ ${#_subnets_ref[@]} -gt 0 ]] && btype="subnet"
[[ ${#_ports_ref[@]} -gt 0 ]] && btype="port"
cmd::block::_record_history "$name" "$btype" "manual" "$reason"
return 0
}
# ── Helpers ───────────────────────────────────────────────────────────────────
function cmd::block::_block_identity() {
local identity_name="${1:-}" quiet="${2:-false}"
shift 2 || true
identity::require_exists "$identity_name" || return 1
identity::require_has_peers "$identity_name" || return 1
local peers blocked=0 failed=0
peers=$(identity::peers "$identity_name")
while IFS= read -r peer_name; do
[[ -z "$peer_name" ]] && continue
if peers::is_blocked "$peer_name"; then
$quiet || log::wg_warning "${peer_name} is already blocked"
continue
fi
local client_ip
client_ip=$(peers::get_ip "$peer_name") || continue
monitor::update_endpoint_cache
if cmd::block::_block_all "$peer_name" "$client_ip" true; then
blocked=$(( blocked + 1 ))
else
failed=$(( failed + 1 ))
fi
done <<< "$peers"
log::ok "Blocked ${blocked} peer(s) for identity '${identity_name}'"
[[ $failed -gt 0 ]] && log::warn "${failed} peer(s) failed to block"
return 0
}
function cmd::block::_get_endpoint() {
local name="$1" public_key="$2"
local endpoint
endpoint=$(monitor::endpoint_for_key "$public_key")
if [[ -z "$endpoint" || "$endpoint" == "(none)" ]]; then
endpoint=$(monitor::get_cached_endpoint "$name")
fi
echo "$endpoint"
}
function cmd::block::_block_all() {
local name="${1:?name required}"
local client_ip="${2:?client_ip required}"
local quiet="${3:-false}"
block::apply_full "$name" "$client_ip"
block::set_direct "$name" "$client_ip" "true"
$quiet || log::wg_success "${name} has been blocked."
}
function cmd::block::_record_history() {
local name="${1:-}" block_type="${2:-full}" \
triggered_by="${3:-manual}" reason="${4:-}"
local endpoint
endpoint=$(json::peer_history_lookup "$name" 2>/dev/null || true)
# endpoint_cache lookup
local ep_cache
ep_cache=$(json::endpoint_cache_get "$(ctx::endpoint_cache)" "$name" 2>/dev/null || true)
json::block_history_record \
"$(ctx::block_history)" \
"$name" \
"$block_type" \
"$triggered_by" \
"$reason" \
"${ep_cache:-}" \
2>/dev/null > /dev/null || true
}