feat: implement global autoresponder plugin

scripts/backend.sh

@@ -0,0 +1,36 @@
+#!/bin/sh
+set -eu
+
+BASE_DIR="/usr/local/hitme_plugins/global-autoresponders"
+STATE_FILE="$BASE_DIR/config/backend-state.json"
+
+usage() {
+  echo "Usage: scripts/backend.sh da|exim" >&2
+}
+
+if [ "${1:-}" != "da" ] && [ "${1:-}" != "exim" ]; then
+  usage
+  exit 2
+fi
+
+mkdir -p "$BASE_DIR/config" "$BASE_DIR/data" "$BASE_DIR/state" "$BASE_DIR/logs"
+chmod 700 "$BASE_DIR/config" "$BASE_DIR/logs"
+
+if [ "$1" = "da" ]; then
+  cat > "$STATE_FILE" <<'EOF'
+{"active_backend":"da","migration_status":"complete"}
+EOF
+  echo "Backend set to da"
+  exit 0
+fi
+
+CUSTOM_DIR="/usr/local/directadmin/custombuild/custom/exim"
+if [ ! -d "$CUSTOM_DIR" ]; then
+  echo "Cannot enable exim backend: safe CustomBuild exim customization directory not found." >&2
+  exit 1
+fi
+
+cat > "$STATE_FILE" <<'EOF'
+{"active_backend":"exim","migration_status":"pending_exim_validation"}
+EOF
+echo "Backend prepared for exim; validate Exim customization before production use."

scripts/exim/global_autoresponder_router.conf

@@ -0,0 +1,2 @@
+# global-autoresponder router placeholder
+# This file must only be installed through DirectAdmin/CustomBuild-safe Exim customization paths.

scripts/exim/global_autoresponder_transport.conf

@@ -0,0 +1,2 @@
+# global-autoresponder transport placeholder
+# This file must only be installed through DirectAdmin/CustomBuild-safe Exim customization paths.

scripts/global_autoresponder_worker.php

@@ -0,0 +1,10 @@
+#!/usr/local/bin/php
+<?php
+declare(strict_types=1);
+
+require_once dirname(__DIR__) . '/exec/lib/Settings.php';
+require_once dirname(__DIR__) . '/exec/lib/MessageClassifier.php';
+require_once dirname(__DIR__) . '/exec/lib/RepeatState.php';
+require_once dirname(__DIR__) . '/exec/lib/MailSender.php';
+
+echo "global-autoresponder worker placeholder: enable only after safe Exim integration review.\n";

scripts/install.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+set -eu
+
+BASE_DIR="/usr/local/hitme_plugins/global-autoresponders"
+PLUGIN_DIR="/usr/local/directadmin/plugins/global-autoresponder"
+
+mkdir -p "$BASE_DIR/config/users" "$BASE_DIR/data/users" "$BASE_DIR/state/replies" "$BASE_DIR/logs"
+chmod 700 "$BASE_DIR/config" "$BASE_DIR/logs"
+chmod 711 "$BASE_DIR/data" "$BASE_DIR/state"
+
+if [ ! -f "$BASE_DIR/config/plugin-settings.conf" ]; then
+  cp "$PLUGIN_DIR/plugin-settings.conf" "$BASE_DIR/config/plugin-settings.conf"
+  chmod 600 "$BASE_DIR/config/plugin-settings.conf"
+fi
+
+if [ ! -f "$BASE_DIR/config/backend-state.json" ]; then
+  printf '%s\n' '{"active_backend":"da","migration_status":"complete"}' > "$BASE_DIR/config/backend-state.json"
+  chmod 600 "$BASE_DIR/config/backend-state.json"
+fi
+
+touch "$BASE_DIR/logs/audit.log"
+chmod 600 "$BASE_DIR/logs/audit.log"
+echo "global-autoresponder installed"

scripts/package.sh

@@ -0,0 +1,25 @@
+#!/bin/sh
+set -eu
+
+VERSION="$(awk -F= '$1=="version"{print $2}' plugin.conf)"
+if [ -z "$VERSION" ]; then
+  echo "Cannot determine version from plugin.conf" >&2
+  exit 1
+fi
+if [ ! -f images/user_icon.svg ]; then
+  echo "Missing user-supplied icon: src/images/user_icon.svg" >&2
+  exit 1
+fi
+
+ROOT_DIR="$(cd .. && pwd)"
+mkdir -p "$ROOT_DIR/archives/$VERSION"
+tar -czf "$ROOT_DIR/archives/$VERSION/global-autoresponder.tar.gz" \
+  --exclude='./.git' \
+  --exclude='./tests' \
+  --exclude='./data' \
+  --exclude='./state' \
+  --exclude='./logs' \
+  --exclude='./*.log' \
+  --exclude='./.DS_Store' \
+  .
+echo "$ROOT_DIR/archives/$VERSION/global-autoresponder.tar.gz"

scripts/sync_directadmin_vacations.php

@@ -0,0 +1,5 @@
+#!/usr/local/bin/php
+<?php
+declare(strict_types=1);
+
+echo "DirectAdmin vacation synchronization is executed by plugin handlers when DA backend is active.\n";

scripts/uninstall.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+set -eu
+
+BASE_DIR="/usr/local/hitme_plugins/global-autoresponders"
+if [ "${PURGE_GLOBAL_AUTORESPONDER_DATA:-0}" = "1" ]; then
+  rm -rf "$BASE_DIR"
+  echo "global-autoresponder data purged"
+else
+  echo "global-autoresponder uninstalled; external data preserved at $BASE_DIR"
+fi

scripts/update.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+set -eu
+
+BASE_DIR="/usr/local/hitme_plugins/global-autoresponders"
+mkdir -p "$BASE_DIR/config/users" "$BASE_DIR/data/users" "$BASE_DIR/state/replies" "$BASE_DIR/logs"
+echo "global-autoresponder updated; external configuration preserved"