242 lines
11 KiB
PHP
242 lines
11 KiB
PHP
<?php
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header('Content-Type: application/json');
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header('Cache-Control: no-store, no-cache');
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require_once dirname(__DIR__) . '/include/config.php';
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require_once dirname(__DIR__) . '/include/arrs.php';
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require_once dirname(__DIR__) . '/include/partnership.php'; // vv_pt_ts_peers, vv_pt_ssh
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function _ms_caller(): array {
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$host = vv_detect_host();
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$id = strtoupper($host);
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$raw = vv_read_conf_raw($host . '.conf');
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$sshKey = vv_arr_scalar($raw, $id . '_SSH_KEY');
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return ['host' => $host, 'ssh_key' => $sshKey];
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}
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function _ms_target(string $slot, string $sshKey): array {
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$vars = vv_conf_vars();
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$hostname = $vars[strtoupper($slot)] ?? '';
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if (!$hostname) return ['ok' => false, 'error' => 'Unknown host: ' . $slot];
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if (!$sshKey || !file_exists($sshKey))
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return ['ok' => false, 'error' => 'SSH key not configured on this host'];
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$ip = vv_resolve_tailscale_ip($hostname);
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if (!$ip) return ['ok' => false, 'error' => 'Cannot reach ' . $hostname . ' via Tailscale'];
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return ['ok' => true, 'ip' => $ip, 'hostname' => $hostname];
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}
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$action = trim($_GET['action'] ?? $_POST['action'] ?? '');
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// ── hosts ─────────────────────────────────────────────────────────────────────
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if ($action === 'hosts') {
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['host' => $current, 'ssh_key' => $sshKey] = _ms_caller();
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$all = vv_arr_known_hosts();
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$peers = vv_pt_ts_peers();
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$out = [];
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foreach ($all as $slot => $hostname) {
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if ($slot === $current) continue;
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$label = strtolower($hostname);
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$ts = $peers[$label] ?? [];
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$out[] = [
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'slot' => $slot,
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'id' => strtoupper($slot),
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'hostname' => $hostname,
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'online' => $ts['online'] ?? null,
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'ip' => $ts['ip'] ?? null,
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];
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}
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echo json_encode(['ok' => true, 'hosts' => $out, 'has_key' => !empty($sshKey) && file_exists($sshKey), 'ssh_key' => $sshKey]);
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exit;
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}
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// ── browse remote (SSH) ───────────────────────────────────────────────────────
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if ($action === 'browse') {
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$slot = trim($_GET['host'] ?? '');
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$path = trim($_GET['path'] ?? '/mnt/user');
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if (!preg_match('#^/[^\0]*$#', $path) || str_contains($path, '..')) {
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echo json_encode(['ok' => false, 'error' => 'Invalid path']); exit;
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}
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['ssh_key' => $sshKey] = _ms_caller();
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$t = _ms_target($slot, $sshKey);
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if (!$t['ok']) { echo json_encode($t); exit; }
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$clean = rtrim($path, '/') ?: '/';
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$out = vv_pt_ssh($t['ip'], $sshKey,
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'find ' . escapeshellarg($clean) . ' -maxdepth 1 -mindepth 1 -type d 2>/dev/null',
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8);
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$dirs = array_values(array_filter(array_map('trim', explode("\n", $out))));
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sort($dirs);
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$dirs = array_slice($dirs, 0, 200);
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// If empty, do a quick SSH echo to distinguish "no dirs" from "SSH failed"
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if (empty($dirs)) {
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$ping = trim(vv_pt_ssh($t['ip'], $sshKey, 'echo ok', 4));
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if ($ping !== 'ok') {
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echo json_encode(['ok' => false, 'error' => 'SSH connection failed to ' . $t['hostname']]);
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exit;
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}
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}
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$parent = ($clean !== '/') ? (dirname($clean) ?: '/') : null;
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echo json_encode(['ok' => true, 'path' => $clean, 'dirs' => $dirs, 'parent' => $parent]);
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exit;
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}
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// ── browse local ──────────────────────────────────────────────────────────────
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if ($action === 'browse_local') {
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$path = trim($_GET['path'] ?? '/mnt/user');
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if (!preg_match('#^/[^\0]*$#', $path) || str_contains($path, '..')) {
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echo json_encode(['ok' => false, 'error' => 'Invalid path']); exit;
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}
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$clean = rtrim($path, '/') ?: '/';
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if (!is_dir($clean)) {
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echo json_encode(['ok' => false, 'error' => 'Not a directory: ' . $clean]); exit;
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}
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$out = shell_exec('find ' . escapeshellarg($clean) . ' -maxdepth 1 -mindepth 1 -type d 2>/dev/null | sort | head -200') ?: '';
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$dirs = array_values(array_filter(array_map('trim', explode("\n", $out))));
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$parent = ($clean !== '/') ? (dirname($clean) ?: '/') : null;
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echo json_encode(['ok' => true, 'path' => $clean, 'dirs' => $dirs, 'parent' => $parent]);
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exit;
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}
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// ── run (background, returns token) ──────────────────────────────────────────
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if ($_SERVER['REQUEST_METHOD'] === 'POST' && $action === 'run') {
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$local = trim($_POST['local'] ?? '');
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$slot = trim($_POST['host'] ?? '');
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$remotePath = trim($_POST['remote_path'] ?? '');
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$user = preg_replace('/[^a-z0-9_.-]/i', '', trim($_POST['user'] ?? 'root')) ?: 'root';
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$bwLimit = max(0, (int)($_POST['bw_limit'] ?? 0));
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$useKey = ($_POST['use_key'] ?? '1') !== '0';
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$rawFlags = trim($_POST['flags'] ?? '');
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$flags = $rawFlags !== '' ? preg_replace('/[`$!|&;><(){}\[\]\\\\]/', '', $rawFlags) : '-av --stats';
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foreach (['local' => $local, 'host' => $slot, 'remote_path' => $remotePath] as $f => $v) {
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if (!$v) { echo json_encode(['ok' => false, 'error' => 'Missing: ' . $f]); exit; }
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}
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foreach ([$local, $remotePath] as $p) {
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if (!str_starts_with($p, '/') || str_contains($p, '..') || preg_match('/[\x00\n\r`$]/', $p)) {
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echo json_encode(['ok' => false, 'error' => 'Invalid path: ' . $p]); exit;
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}
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}
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// ── Safeguards ────────────────────────────────────────────────────────────
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// Block syncing from/to dangerous system paths
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$blocked = ['/', '/proc', '/sys', '/dev', '/run', '/etc', '/bin', '/sbin',
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'/usr', '/lib', '/lib64', '/boot/EFI', '/tmp'];
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foreach ($blocked as $b) {
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if (rtrim($local, '/') === $b) {
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echo json_encode(['ok' => false, 'error' => 'Refusing to sync from system path: ' . $b]); exit;
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}
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if (rtrim($remotePath, '/') === $b) {
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echo json_encode(['ok' => false, 'error' => 'Refusing to sync to system path: ' . $b]); exit;
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}
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}
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// Local source must exist
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if (!file_exists($local)) {
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echo json_encode(['ok' => false, 'error' => 'Local source does not exist: ' . $local]); exit;
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}
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// Prevent concurrent manual syncs
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foreach (glob('/tmp/vv_ms_*.pid') ?: [] as $pf) {
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$pid = (int)trim(@file_get_contents($pf) ?: '0');
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if ($pid > 0 && file_exists('/proc/' . $pid)) {
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echo json_encode(['ok' => false, 'error' => 'Another manual sync is already running — stop it first.']); exit;
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}
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@unlink($pf); // stale
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}
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['ssh_key' => $sshKey] = _ms_caller();
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$t = _ms_target($slot, $sshKey);
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if (!$t['ok']) { echo json_encode($t); exit; }
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// Remote destination must exist
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$destCheck = trim(vv_pt_ssh($t['ip'], $sshKey,
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'test -d ' . escapeshellarg($remotePath) . ' && echo ok || echo missing', 5));
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if ($destCheck === 'missing') {
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echo json_encode(['ok' => false, 'error' => 'Remote destination does not exist: ' . $remotePath]); exit;
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}
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if ($destCheck !== 'ok') {
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// SSH check inconclusive — log warning but proceed; rsync will fail cleanly if needed
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// (e.g. Tailscale not yet up, rsync error will surface in output)
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}
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// ── Build and launch ──────────────────────────────────────────────────────
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$token = bin2hex(random_bytes(8));
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$logFile = '/tmp/vv_ms_' . $token . '.log';
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$pidFile = '/tmp/vv_ms_' . $token . '.pid';
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if ($useKey && $sshKey && file_exists($sshKey)) {
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$sshOpts = 'ssh -i ' . escapeshellarg($sshKey) . ' -o StrictHostKeyChecking=no -o BatchMode=yes -o ConnectTimeout=10';
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} else {
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$sshOpts = 'ssh -o StrictHostKeyChecking=no -o ConnectTimeout=10';
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}
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if ($bwLimit) $flags .= ' --bwlimit=' . (int)$bwLimit;
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$src = escapeshellarg(rtrim($local, '/') . '/');
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$dst = escapeshellarg($user . '@' . $t['ip'] . ':' . rtrim($remotePath, '/') . '/');
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// Start rsync in background, capture its PID for stop support
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$inner = "rsync $flags -e " . escapeshellarg($sshOpts) . " $src $dst >> " . escapeshellarg($logFile) . " 2>&1 &"
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. " RSYNC_PID=\$!;"
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. " echo \$RSYNC_PID > " . escapeshellarg($pidFile) . ";"
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. " wait \$RSYNC_PID;"
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. " echo __DONE__ >> " . escapeshellarg($logFile) . ";"
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. " rm -f " . escapeshellarg($pidFile);
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shell_exec('nohup bash -c ' . escapeshellarg($inner) . ' &>/dev/null &');
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echo json_encode(['ok' => true, 'token' => $token]);
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exit;
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}
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// ── stop ──────────────────────────────────────────────────────────────────────
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if ($_SERVER['REQUEST_METHOD'] === 'POST' && $action === 'stop') {
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$token = preg_replace('/[^a-f0-9]/', '', trim($_POST['token'] ?? ''));
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if (!$token || strlen($token) !== 16) {
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echo json_encode(['ok' => false, 'error' => 'Invalid token']); exit;
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}
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$pidFile = '/tmp/vv_ms_' . $token . '.pid';
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$logFile = '/tmp/vv_ms_' . $token . '.log';
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$pid = (int)trim(@file_get_contents($pidFile) ?: '0');
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if ($pid > 0 && file_exists('/proc/' . $pid)) {
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shell_exec('kill -TERM ' . $pid . ' 2>/dev/null');
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usleep(400000); // 400ms grace
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if (file_exists('/proc/' . $pid)) shell_exec('kill -KILL ' . $pid . ' 2>/dev/null');
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}
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@unlink($pidFile);
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@file_put_contents($logFile, "\n\n--- Cancelled by user ---\n__DONE__\n", FILE_APPEND);
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echo json_encode(['ok' => true]);
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exit;
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}
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// ── poll ──────────────────────────────────────────────────────────────────────
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if ($action === 'poll') {
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$token = preg_replace('/[^a-f0-9]/', '', trim($_GET['token'] ?? ''));
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if (!$token || strlen($token) !== 16) {
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echo json_encode(['ok' => false, 'error' => 'Invalid token']); exit;
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}
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$logFile = '/tmp/vv_ms_' . $token . '.log';
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$pidFile = '/tmp/vv_ms_' . $token . '.pid';
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if (!file_exists($logFile)) {
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echo json_encode(['ok' => true, 'output' => '', 'done' => false, 'started' => false]); exit;
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}
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$content = file_get_contents($logFile) ?: '';
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$done = str_contains($content, '__DONE__');
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if ($done) {
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$content = str_replace(['__DONE__', "\n\n\n"], ['', "\n\n"], $content);
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@unlink($logFile);
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@unlink($pidFile);
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}
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// Check if rsync process is actually alive (catches crashes without __DONE__)
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$pid = (int)trim(@file_get_contents($pidFile) ?: '0');
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if (!$done && $pid > 0 && !file_exists('/proc/' . $pid)) {
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$done = true;
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$content .= "\n\n--- Process ended unexpectedly ---";
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@unlink($pidFile);
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}
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echo json_encode(['ok' => true, 'output' => $content, 'done' => $done, 'started' => true]);
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exit;
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}
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echo json_encode(['ok' => false, 'error' => 'Unknown action']);
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