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index.php
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906 lines (851 loc) · 39.8 KB
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<?php
/**
* MySQL Database Sampler — single file PHP tool
* ------------------------------------------------
* - Choose a source database, then pick tables.
* - Copy X rows per selected table into a target database.
* - Pretty UI with Tailwind (via CDN) and helpful output.
*
* Usage:
* - Put this file on a PHP-enabled server (PHP 8+ recommended).
* - Open in browser.
*
* Security note: This is an admin tool. Protect the file (basic auth, IP allowlist, etc.).
*/
// Session hardening
ini_set('session.use_strict_mode', '1');
ini_set('session.cookie_httponly', '1');
if (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') {
ini_set('session.cookie_secure', '1');
}
session_start();
$csrfError = null;
function csrf_token(): string {
if (empty($_SESSION['_csrf'])) {
$_SESSION['_csrf'] = bin2hex(random_bytes(32));
}
return $_SESSION['_csrf'];
}
function csrf_check(): bool {
$token = $_POST['_csrf'] ?? '';
return is_string($token) && hash_equals($_SESSION['_csrf'] ?? '', $token);
}
// Load .env (simple parser) so ADMIN_PASSWORD can be read from a local .env file
function load_env_file(string $path): void {
if (!is_file($path)) return;
foreach (file($path, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES) ?: [] as $line) {
if ($line === '' || str_starts_with(trim($line), '#')) continue;
$pos = strpos($line, '=');
if ($pos === false) continue;
$key = trim(substr($line, 0, $pos));
$value = trim(substr($line, $pos + 1));
$value = trim($value, "\"' ");
if ($key !== '') {
$_ENV[$key] = $value;
$_SERVER[$key] = $value;
// putenv so getenv() works
@putenv($key.'='.$value);
}
}
}
load_env_file(__DIR__.'/.env');
// Global security headers
header('Referrer-Policy: no-referrer');
header('X-Frame-Options: DENY');
header('X-Content-Type-Options: nosniff');
header('Permissions-Policy: geolocation=(), microphone=(), camera=()');
// Relaxed CSP to allow Tailwind CDN and inline scripts (can be tightened later)
header("Content-Security-Policy: default-src 'self' https://cdn.tailwindcss.com; img-src 'self' data:; style-src 'self' 'unsafe-inline' https://cdn.tailwindcss.com; script-src 'self' 'unsafe-inline' https://cdn.tailwindcss.com");
// Simple auth configuration
$REQUIRE_AUTH = true; // set to false to disable auth
$CONFIG_PASSWORD = getenv('ADMIN_PASSWORD') ?: ($_ENV['ADMIN_PASSWORD'] ?? ($_SERVER['ADMIN_PASSWORD'] ?? 'admin123'));
$READ_ONLY = filter_var(getenv('READ_ONLY') ?: ($_ENV['READ_ONLY'] ?? 'false'), FILTER_VALIDATE_BOOLEAN);
$DIAGRAM_ENABLED = filter_var(getenv('DIAGRAM_ENABLED') ?: ($_ENV['DIAGRAM_ENABLED'] ?? 'true'), FILTER_VALIDATE_BOOLEAN);
// IP allowlist: comma-separated list in ALLOW_IPS
$ALLOW_IPS = array_filter(array_map('trim', explode(',', (string)(getenv('ALLOW_IPS') ?: ($_ENV['ALLOW_IPS'] ?? '')))));
if (!empty($ALLOW_IPS)) {
$clientIp = $_SERVER['REMOTE_ADDR'] ?? '';
if ($clientIp && !in_array($clientIp, $ALLOW_IPS, true)) {
http_response_code(403);
if (!class_exists('League\\Plates\\Engine')) {
require_once __DIR__ . '/vendor/autoload.php';
}
$templates = new League\Plates\Engine(__DIR__ . '/views');
echo '<!doctype html><html lang="en"><head><meta charset="utf-8" />'
. '<meta name="viewport" content="width=device-width, initial-scale=1" />'
. '<title>403 · Access Restricted</title>'
. '<script>window.tailwind=window.tailwind||{};tailwind.config={darkMode:"class"};</script>'
. '<script src="https://cdn.tailwindcss.com"></script>'
. '<script>(function(){try{if(window.matchMedia&&(window.matchMedia("(prefers-color-scheme: dark)").matches)){document.documentElement.classList.add("dark");}}catch(e){}})();</script>'
. '</head><body class="min-h-screen bg-slate-50 text-slate-800 dark:bg-slate-900 dark:text-slate-100 grid place-items-center p-6">';
echo $templates->render('error', [
'title' => '403 · Access Restricted',
'heading' => 'Access restricted by ALLOW_IPS',
'clientIp' => (string)$clientIp,
// omit allowed IPs from display
'retryUrl' => (string)($_SERVER['REQUEST_URI'] ?? 'index.php'),
]);
echo '</body></html>';
exit;
}
}
$isAuthed = !empty($_SESSION['sampler_authed']);
$authError = null;
require __DIR__ . '/vendor/autoload.php';
use League\Plates\Engine;
// -----------------------------
// Helpers
// -----------------------------
function e(string $s): string { return htmlspecialchars($s, ENT_QUOTES, 'UTF-8'); }
function pdo_connect(?string $db = null): PDO {
$host = $_SESSION['conn']['host'] ?? ($_POST['db_host'] ?? 'localhost');
$port = $_SESSION['conn']['port'] ?? ($_POST['db_port'] ?? '3306');
$user = $_SESSION['conn']['user'] ?? ($_POST['db_user'] ?? '');
$pass = $_SESSION['conn']['pass'] ?? ($_POST['db_pass'] ?? '');
$dsn = $db
? "mysql:host={$host};port={$port};dbname=" . $db . ";charset=utf8mb4"
: "mysql:host={$host};port={$port};charset=utf8mb4";
$pdo = new PDO($dsn, $user, $pass, [
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
PDO::MYSQL_ATTR_INIT_COMMAND => 'SET sql_mode="NO_ENGINE_SUBSTITUTION"',
]);
return $pdo;
}
function get_databases(PDO $pdo): array {
$stmt = $pdo->query('SHOW DATABASES');
$all = $stmt->fetchAll(PDO::FETCH_COLUMN);
// Exclude system schemas
return array_values(array_filter($all, fn($d) => !in_array($d, [
'information_schema','mysql','performance_schema','sys'
], true)));
}
function get_tables(PDO $pdo, string $db): array {
$sql = "SELECT TABLE_NAME FROM information_schema.TABLES WHERE TABLE_SCHEMA = ? AND TABLE_TYPE='BASE TABLE' ORDER BY TABLE_NAME";
$stmt = $pdo->prepare($sql);
$stmt->execute([$db]);
return $stmt->fetchAll(PDO::FETCH_COLUMN) ?: [];
}
function get_fk_relations(PDO $pdo, string $db): array {
$sql = "SELECT TABLE_NAME, REFERENCED_TABLE_NAME FROM information_schema.KEY_COLUMN_USAGE WHERE TABLE_SCHEMA = ? AND REFERENCED_TABLE_NAME IS NOT NULL";
$stmt = $pdo->prepare($sql);
$stmt->execute([$db]);
$rels = [];
foreach ($stmt->fetchAll(PDO::FETCH_ASSOC) as $row) {
$from = $row['TABLE_NAME'];
$to = $row['REFERENCED_TABLE_NAME'];
$rels[$from][] = $to;
}
return $rels;
}
function get_table_columns(PDO $pdo, string $db, array $tables): array {
if (empty($tables)) return [];
$in = implode(',', array_fill(0, count($tables), '?'));
$params = array_merge([$db], $tables);
$sql = "SELECT TABLE_NAME, COLUMN_NAME, DATA_TYPE, COLUMN_KEY FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = ? AND TABLE_NAME IN ($in) ORDER BY ORDINAL_POSITION";
$stmt = $pdo->prepare($sql);
$stmt->execute($params);
$out = [];
foreach ($stmt->fetchAll(PDO::FETCH_ASSOC) as $row) {
$out[$row['TABLE_NAME']][] = [
'name' => $row['COLUMN_NAME'],
'type' => $row['DATA_TYPE'],
'pk' => strtoupper((string)$row['COLUMN_KEY']) === 'PRI',
];
}
return $out;
}
function get_primary_key_column(PDO $pdo, string $db, string $table): ?string {
$sql = "SELECT COLUMN_NAME FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = ? AND TABLE_NAME = ? AND COLUMN_KEY = 'PRI' ORDER BY ORDINAL_POSITION LIMIT 1";
$stmt = $pdo->prepare($sql);
$stmt->execute([$db, $table]);
$col = $stmt->fetchColumn();
return $col !== false ? (string)$col : null;
}
/**
* Detect sensitive columns by heuristic column-name matching.
* Matches: password, pass, pwd, secret, token (case-insensitive, substring).
* Returns [tableName => [col1, col2, ...]]
*/
function detect_sensitive_columns(PDO $pdo, string $db, array $tables): array {
if (empty($tables)) return [];
$columnsByTable = get_table_columns($pdo, $db, $tables);
$sensitive = [];
foreach ($tables as $t) {
foreach (($columnsByTable[$t] ?? []) as $col) {
$name = strtolower((string)($col['name'] ?? ''));
if ($name === '') continue;
if (
str_contains($name, 'password') ||
$name === 'pass' || str_contains($name, 'pass') ||
str_contains($name, 'pwd') ||
str_contains($name, 'secret') ||
str_contains($name, 'token') ||
str_contains($name, 'api_key') ||
str_contains($name, 'apikey') ||
str_contains($name, 'api-secret') || str_contains($name, 'apisecret') || str_contains($name, 'api_secret') ||
str_contains($name, 'auth') || str_contains($name, 'bearer') || str_contains($name, 'jwt') ||
str_contains($name, 'access') || str_contains($name, 'refresh') ||
str_contains($name, 'credit') || str_contains($name, 'card') ||
$name === 'ssn'
) {
$sensitive[$t][] = $col['name'];
}
}
}
return $sensitive;
}
function build_mermaid_er_graph(array $tables, array $relations, array $columnsByTable): string {
$lines = ["erDiagram"]; // Mermaid ER diagram
// Normalize table names to Mermaid-safe identifiers and ensure uniqueness
$normalize = function(string $name): string {
$safe = preg_replace('/[^A-Za-z0-9_]/', '_', $name);
if ($safe === null) { $safe = $name; }
if ($safe === '' || ctype_digit($safe[0])) { $safe = 'T_' . $safe; }
return $safe;
};
$map = [];
$used = [];
foreach ($tables as $t) {
$base = $normalize($t);
$candidate = $base;
$i = 2;
while (isset($used[$candidate])) { $candidate = $base . '_' . $i++; }
$used[$candidate] = true;
$map[$t] = $candidate;
}
// Entities
foreach ($tables as $t) {
$lines[] = " " . $map[$t] . " {";
$cols = $columnsByTable[$t] ?? [];
if (empty($cols)) {
// add a placeholder so Mermaid renders the box
$lines[] = " id int";
} else {
foreach ($cols as $col) {
$attr = " " . $col['name'] . " " . $col['type'];
if (!empty($col['pk'])) { $attr .= " PK"; }
$lines[] = $attr;
}
}
$lines[] = " }";
}
// Relations
foreach ($relations as $from => $tos) {
$fromId = $map[$from] ?? null;
if (!$fromId) continue;
foreach ($tos as $to) {
$toId = $map[$to] ?? null;
if (!$toId) continue;
$lines[] = " " . $fromId . " }o--|| " . $toId . ": FK"; // crow's foot (many-to-one)
}
}
return implode("\n", $lines);
}
function get_table_row_estimates(PDO $pdo, string $db): array {
$sql = "SELECT TABLE_NAME, TABLE_ROWS FROM information_schema.TABLES WHERE TABLE_SCHEMA = ? AND TABLE_TYPE='BASE TABLE'";
$stmt = $pdo->prepare($sql);
$stmt->execute([$db]);
$rows = $stmt->fetchAll(PDO::FETCH_KEY_PAIR) ?: [];
// Cast to int; TABLE_ROWS can be null
foreach ($rows as $k => $v) {
$rows[$k] = $v !== null ? (int)$v : 0;
}
return $rows;
}
function get_database_summary(PDO $pdo, string $db): array {
try {
// Get table count and total rows
$sql = "SELECT
COUNT(*) as table_count,
SUM(TABLE_ROWS) as total_rows,
SUM(DATA_LENGTH + INDEX_LENGTH) as total_size_bytes,
SUM(DATA_LENGTH) as data_size_bytes,
SUM(INDEX_LENGTH) as index_size_bytes
FROM information_schema.TABLES
WHERE TABLE_SCHEMA = ? AND TABLE_TYPE='BASE TABLE'";
$stmt = $pdo->prepare($sql);
$stmt->execute([$db]);
$summary = $stmt->fetch(PDO::FETCH_ASSOC) ?: [];
// Get largest tables
$sql = "SELECT
TABLE_NAME,
TABLE_ROWS,
ROUND((DATA_LENGTH + INDEX_LENGTH) / 1024 / 1024, 2) as size_mb
FROM information_schema.TABLES
WHERE TABLE_SCHEMA = ? AND TABLE_TYPE='BASE TABLE'
ORDER BY (DATA_LENGTH + INDEX_LENGTH) DESC
LIMIT 5";
$stmt = $pdo->prepare($sql);
$stmt->execute([$db]);
$largestTables = $stmt->fetchAll(PDO::FETCH_ASSOC) ?: [];
// Get backup recommendations
$recommendations = [];
$totalSizeMB = ($summary['total_size_bytes'] ?? 0) / 1024 / 1024;
$totalRows = $summary['total_rows'] ?? 0;
if ($totalSizeMB > 500) {
$recommendations[] = "Large database (" . number_format($totalSizeMB, 1) . "MB) - consider using gzip compression";
}
if ($totalRows > 1000000) {
$recommendations[] = "High row count (" . number_format($totalRows) . ") - backup may take several minutes";
}
if (($summary['table_count'] ?? 0) > 50) {
$recommendations[] = "Many tables (" . ($summary['table_count']) . ") - consider selective backup";
}
if (empty($recommendations)) {
$recommendations[] = "Database size is manageable for standard backup";
}
return [
'table_count' => (int)($summary['table_count'] ?? 0),
'total_rows' => (int)($summary['total_rows'] ?? 0),
'total_size_mb' => round($totalSizeMB, 2),
'data_size_mb' => round(($summary['data_size_bytes'] ?? 0) / 1024 / 1024, 2),
'index_size_mb' => round(($summary['index_size_bytes'] ?? 0) / 1024 / 1024, 2),
'largest_tables' => $largestTables,
'recommendations' => $recommendations,
'estimated_time' => estimate_backup_time($totalSizeMB, $totalRows)
];
} catch (Throwable $ex) {
// Return a minimal summary if we can't get the full data
return [
'table_count' => 0,
'total_rows' => 0,
'total_size_mb' => 0,
'data_size_mb' => 0,
'index_size_mb' => 0,
'largest_tables' => [],
'recommendations' => ['Unable to analyze database - proceeding with backup'],
'estimated_time' => 'Unknown'
];
}
}
function estimate_backup_time(float $sizeMB, int $totalRows): string {
// Rough estimation based on size and row count
if ($sizeMB < 10) return "Less than 30 seconds";
if ($sizeMB < 100) return "30 seconds to 2 minutes";
if ($sizeMB < 500) return "2-5 minutes";
if ($sizeMB < 1000) return "5-10 minutes";
if ($sizeMB < 5000) return "10-30 minutes";
return "30+ minutes (consider using gzip)";
}
function create_target_db(PDO $pdo, string $db): void {
$pdo->exec("CREATE DATABASE IF NOT EXISTS `".$db."` CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
}
function clone_structure_and_copy_rows(PDO $rootPdo, string $sourceDB, string $targetDB, array $tables, int $limit, bool $orderByPk = false): array {
$report = [];
// Use dedicated PDOs pinned to specific DBs
$src = pdo_connect($sourceDB);
$tgt = pdo_connect($targetDB);
// Disable FK checks for duration
$tgt->exec('SET FOREIGN_KEY_CHECKS = 0');
foreach ($tables as $table) {
$row = ['table' => $table, 'created' => false, 'copied' => 0, 'error' => null];
try {
// Drop if exists (fresh)
$tgt->exec("DROP TABLE IF EXISTS `".$table."`");
// Get CREATE TABLE
$stmt = $src->query("SHOW CREATE TABLE `".$table."`");
$create = $stmt->fetch(PDO::FETCH_ASSOC);
if (!$create || empty($create['Create Table'])) {
throw new RuntimeException('SHOW CREATE TABLE returned empty.');
}
// Recreate in target
$tgt->exec($create['Create Table']);
$row['created'] = true;
// Copy rows
$orderClause = '';
if ($orderByPk) {
$pk = get_primary_key_column($src, $sourceDB, $table);
if ($pk) { $orderClause = " ORDER BY `".$pk."`"; }
}
$insertSql = "INSERT INTO `{$targetDB}`.`{$table}` SELECT * FROM `{$sourceDB}`.`{$table}`" . $orderClause . " LIMIT {$limit}";
$copied = $tgt->exec($insertSql);
$row['copied'] = (int)$copied;
} catch (Throwable $ex) {
$row['error'] = $ex->getMessage();
}
$report[] = $row;
}
$tgt->exec('SET FOREIGN_KEY_CHECKS = 1');
return $report;
}
/**
* After data is copied to target, mask sensitive columns by overwriting values.
*/
function apply_masking(PDO $pdoTarget, string $targetDB, array $tableToColumns): void {
if (empty($tableToColumns)) return;
foreach ($tableToColumns as $table => $cols) {
$cols = array_values(array_unique(array_filter(array_map('strval', $cols))));
if (empty($cols)) continue;
// Build SET clause like: `c1`=REPEAT('*',12), `c2`=REPEAT('*',12)
$sets = [];
foreach ($cols as $c) {
$sets[] = "`".$c."`=REPEAT('*', 12)";
}
$sql = "UPDATE `".$targetDB."`.`".$table."` SET ".implode(', ', $sets);
try {
$pdoTarget->exec($sql);
} catch (Throwable $ex) {
// Ignore masking errors per table/column to avoid failing the whole run
}
}
}
/**
* Create a sanitized copy of sourceDB into tempDB (full data) and mask sensitive columns.
*/
function create_sanitized_copy(PDO $rootPdo, string $sourceDB, string $tempDB): array {
$report = [];
$src = pdo_connect($sourceDB);
$tgt = pdo_connect();
// Create temp database
$tgt->exec("CREATE DATABASE IF NOT EXISTS `".$tempDB."` CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
$pdoTemp = pdo_connect($tempDB);
// Get tables
$tables = get_tables($src, $sourceDB);
foreach ($tables as $table) {
$row = ['table' => $table, 'created' => false, 'copied' => 0, 'error' => null];
try {
// Drop table if exists
$pdoTemp->exec("DROP TABLE IF EXISTS `".$table."`");
// Recreate structure
$stmt = $src->query("SHOW CREATE TABLE `".$table."`");
$create = $stmt->fetch(PDO::FETCH_ASSOC);
if (!$create || empty($create['Create Table'])) {
throw new RuntimeException('SHOW CREATE TABLE returned empty.');
}
$pdoTemp->exec($create['Create Table']);
$row['created'] = true;
// Copy all rows
$insertSql = "INSERT INTO `".$tempDB."`.`".$table."` SELECT * FROM `".$sourceDB."`.`".$table."`";
$copied = $pdoTemp->exec($insertSql);
$row['copied'] = (int)$copied;
} catch (Throwable $ex) {
$row['error'] = $ex->getMessage();
}
$report[] = $row;
}
return $report;
}
// -----------------------------
// Request handling
// -----------------------------
$step = (int)($_POST['step'] ?? 1);
$error = null;
$databases = $tables = $report = [];
$rowEstimates = [];
$mermaid = '';
try {
// Persist DB connection in session (host, port, user, pass) when provided
if (isset($_POST['db_host'], $_POST['db_port'], $_POST['db_user'])) {
$h = (string)($_POST['db_host'] ?? 'localhost');
$p = (string)($_POST['db_port'] ?? '3306');
$u = (string)($_POST['db_user'] ?? '');
$pw = array_key_exists('db_pass', $_POST) && $_POST['db_pass'] !== ''
? (string)$_POST['db_pass']
: (string)($_SESSION['conn']['pass'] ?? '');
$_SESSION['conn'] = ['host' => $h, 'port' => $p, 'user' => $u, 'pass' => $pw];
}
// Auth: logout
if (($_POST['action'] ?? '') === 'logout') {
if (!csrf_check()) { http_response_code(400); exit('Bad Request'); }
unset($_SESSION['sampler_authed']);
header('Location: ' . ($_SERVER['PHP_SELF'] ?? 'index.php'));
exit;
}
// Auth: login
if (($_POST['action'] ?? '') === 'login') {
// Rate limiting: 5 attempts per 5 minutes
$_SESSION['login_attempts'] = $_SESSION['login_attempts'] ?? [];
$_SESSION['login_attempts'] = array_values(array_filter($_SESSION['login_attempts'], fn($t) => $t > time() - 300));
if (count($_SESSION['login_attempts']) >= 5) {
$authError = 'Too many attempts. Please wait and try again.';
} elseif (!csrf_check()) {
$authError = 'Invalid request.';
} elseif (!isset($_POST['password'])) {
$authError = 'Please enter your password.';
} else {
$pwd = trim((string)($_POST['password'] ?? ''));
if (hash_equals($CONFIG_PASSWORD, $pwd)) {
session_regenerate_id(true);
$_SESSION['sampler_authed'] = true;
$isAuthed = true;
$_SESSION['login_attempts'] = [];
} else {
$_SESSION['login_attempts'][] = time();
$authError = 'Invalid password';
}
}
}
// If auth required and not logged in, render login view early
if ($REQUIRE_AUTH && !$isAuthed) {
$templates = new Engine(__DIR__ . '/views');
$body = $templates->render('login', [
'error' => $authError,
'csrf' => csrf_token(),
]);
echo $templates->render('template', [
'title' => 'SQL PowerTools · Login',
'body' => $body,
'authed' => false,
'error' => $authError,
]);
return;
}
// Download sampled SQL (mysqldump of target DB)
if (($_POST['action'] ?? '') === 'download_sql') {
if (!csrf_check()) { http_response_code(400); exit('Bad Request'); }
$sourceDB = $_POST['source_db'] ?? '';
$targetDB = trim($_POST['target_db'] ?? ($sourceDB . '_sample'));
$host = $_SESSION['conn']['host'] ?? ($_POST['db_host'] ?? 'localhost');
$port = $_SESSION['conn']['port'] ?? ($_POST['db_port'] ?? '3306');
$user = $_SESSION['conn']['user'] ?? ($_POST['db_user'] ?? '');
$pass = $_SESSION['conn']['pass'] ?? ($_POST['db_pass'] ?? '');
$filename = $targetDB . '_' . date('Ymd_His') . '.sql';
while (ob_get_level()) { @ob_end_clean(); }
header('Content-Type: application/sql');
header('Content-Disposition: attachment; filename=' . $filename);
header('X-Content-Type-Options: nosniff');
header('Cache-Control: no-store');
// Resolve mysqldump path: use env MYSQLDUMP_PATH if provided; on Windows try Wamp default locations
$mysqldump = getenv('MYSQLDUMP_PATH') ?: 'mysqldump';
if (DIRECTORY_SEPARATOR === '\\' && $mysqldump === 'mysqldump') {
// Try auto-discover under wamp64\bin\mysql\mysql*\bin
$candidates = glob('C:\\wamp64\\bin\\mysql\\mysql*\\bin\\mysqldump.exe');
if (!empty($candidates)) {
// Pick the last (usually highest version) path
natsort($candidates);
$last = array_values($candidates);
$mysqldump = end($last) ?: $mysqldump;
}
}
// Use a temporary defaults file to avoid exposing password via process args
$tmpCnf = tempnam(sys_get_temp_dir(), 'mycnf_');
$cnf = "[client]\nuser={$user}\npassword={$pass}\nhost={$host}\nport={$port}\n";
file_put_contents($tmpCnf, $cnf);
$cmd = $mysqldump . ' --defaults-extra-file=' . escapeshellarg($tmpCnf)
. ' --databases ' . escapeshellarg($targetDB)
. ' --compact --no-tablespaces';
$proc = proc_open($cmd, [1 => ['pipe','w'], 2 => ['pipe','w']], $pipes, null, null);
if (is_resource($proc)) {
while (!feof($pipes[1])) {
echo fread($pipes[1], 8192);
flush();
}
fclose($pipes[1]);
$stderr = stream_get_contents($pipes[2]);
fclose($pipes[2]);
proc_close($proc);
if ($stderr) {
echo "\n-- mysqldump error: " . str_replace(["\r","\n"], ' ', $stderr) . "\n";
}
} else {
echo "-- Unable to execute mysqldump. Ensure it's in PATH.\n";
}
@unlink($tmpCnf);
exit;
}
// Download full backup of source DB (structure + data)
if (($_POST['action'] ?? '') === 'download_full_backup') {
if (!csrf_check()) { http_response_code(400); exit('Bad Request'); }
$sourceDB = $_POST['source_db'] ?? '';
if (!$sourceDB) { http_response_code(400); exit('Missing source_db'); }
$host = $_SESSION['conn']['host'] ?? ($_POST['db_host'] ?? 'localhost');
$port = $_SESSION['conn']['port'] ?? ($_POST['db_port'] ?? '3306');
$user = $_SESSION['conn']['user'] ?? ($_POST['db_user'] ?? '');
$pass = $_SESSION['conn']['pass'] ?? ($_POST['db_pass'] ?? '');
$wantGzip = ($_POST['gzip'] ?? '') === '1';
$maskSensitive = (($_POST['mask_sensitive'] ?? '') === '1');
$orderByPk = (($_POST['order_by_pk'] ?? '') === '1');
$basename = $sourceDB . ($maskSensitive ? '_sanitized_full_' : '_full_') . date('Ymd_His');
while (ob_get_level()) { @ob_end_clean(); }
if ($wantGzip) {
header('Content-Type: application/gzip');
header('Content-Disposition: attachment; filename=' . $basename . '.sql.gz');
} else {
header('Content-Type: application/sql');
header('Content-Disposition: attachment; filename=' . $basename . '.sql');
}
header('X-Content-Type-Options: nosniff');
header('Cache-Control: no-store');
$mysqldump = getenv('MYSQLDUMP_PATH') ?: 'mysqldump';
if (DIRECTORY_SEPARATOR === '\\' && $mysqldump === 'mysqldump') {
$candidates = glob('C:\\wamp64\\bin\\mysql\\mysql*\\bin\\mysqldump.exe');
if (!empty($candidates)) { natsort($candidates); $last = array_values($candidates); $mysqldump = end($last) ?: $mysqldump; }
}
$dumpDb = $sourceDB;
$tempDbName = '';
if ($maskSensitive) {
// Create sanitized temp copy to dump
$tempDbName = $sourceDB . '_san_tmp_' . substr(bin2hex(random_bytes(4)), 0, 8);
try {
create_sanitized_copy(pdo_connect(), $sourceDB, $tempDbName);
$dumpDb = $tempDbName;
} catch (Throwable $ex) {
// Fallback: if sanitization fails, proceed with original DB
$dumpDb = $sourceDB;
}
}
$tmpCnf = tempnam(sys_get_temp_dir(), 'mycnf_');
$cnf = "[client]\nuser={$user}\npassword={$pass}\nhost={$host}\nport={$port}\n";
file_put_contents($tmpCnf, $cnf);
// If masking is requested, and we created a temp DB, stream a combined dump:
// 1) Header + schema (routines/triggers, no data) from source DB (no --databases)
// 2) Data only from sanitized temp DB (no --databases)
// Otherwise, fall back to dumping the chosen DB normally.
$writeRaw = function(string $data) use ($wantGzip, &$gzHandle) {
if ($wantGzip && function_exists('gzopen')) {
if (!isset($gzHandle)) { $gzHandle = @gzopen('php://output', 'wb9'); }
if ($gzHandle) { @gzwrite($gzHandle, $data); } else { echo $data; flush(); }
} else {
echo $data; flush();
}
};
$streamCmd = function(string $cmd) use (&$writeRaw) {
$proc = proc_open($cmd, [1 => ['pipe','w'], 2 => ['pipe','w']], $pipes, null, null);
if (is_resource($proc)) {
while (!feof($pipes[1])) { $chunk = fread($pipes[1], 8192); if ($chunk !== false) { $writeRaw($chunk); } }
fclose($pipes[1]);
$stderr = stream_get_contents($pipes[2]);
fclose($pipes[2]);
proc_close($proc);
if ($stderr) { $writeRaw("\n-- mysqldump note: " . str_replace(["\r","\n"], ' ', $stderr) . "\n"); }
return true;
}
$writeRaw("-- Unable to execute: " . $cmd . "\n");
return false;
};
$gzHandle = null;
if ($maskSensitive && $tempDbName) {
// Write header and USE statement
$writeRaw("-- SQL PowerTools combined sanitized dump\n");
$writeRaw("CREATE DATABASE IF NOT EXISTS `".$sourceDB."` CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;\nUSE `".$sourceDB."`;\n\n");
// 1) Schema from source (no data)
$cmdSchema = $mysqldump . ' --defaults-extra-file=' . escapeshellarg($tmpCnf)
. ' --single-transaction --quick --skip-lock-tables --routines --triggers --hex-blob'
. ' --no-data ' . escapeshellarg($sourceDB);
$streamCmd($cmdSchema);
// 2) Data-only from sanitized DB
// If user provided overrides, apply them to temp DB before dumping.
// If no overrides were provided, do NOT mask anything (explicit opt-in).
$overrides = [];
foreach ((array)($_POST['mask_cols'] ?? []) as $tbl => $cols) {
$tbl = (string)$tbl; if ($tbl === '') continue;
$overrides[$tbl] = array_values(array_unique(array_filter(array_map('strval', (array)$cols))));
}
if (!empty($overrides)) {
try { apply_masking(pdo_connect($tempDbName), $tempDbName, $overrides); } catch (Throwable $ex) {}
} else {
// Auto-detect sensitive columns across all tables (default fallback when none selected)
$allTables = get_tables(pdo_connect($sourceDB), $sourceDB);
$detected = detect_sensitive_columns(pdo_connect($sourceDB), $sourceDB, $allTables);
if (!empty($detected)) {
try { apply_masking(pdo_connect($tempDbName), $tempDbName, $detected); } catch (Throwable $ex) {}
}
}
$cmdData = $mysqldump . ' --defaults-extra-file=' . escapeshellarg($tmpCnf)
. ' --single-transaction --quick --skip-lock-tables --hex-blob --no-create-info --skip-triggers '
. escapeshellarg($tempDbName);
$streamCmd($cmdData);
if ($gzHandle) { @gzclose($gzHandle); }
} else {
// Standard single DB dump (structure + data)
$cmd = $mysqldump . ' --defaults-extra-file=' . escapeshellarg($tmpCnf)
. ' --single-transaction --quick --skip-lock-tables --routines --triggers --hex-blob '
. escapeshellarg($dumpDb);
$proc = proc_open($cmd, [1 => ['pipe','w'], 2 => ['pipe','w']], $pipes, null, null);
if (is_resource($proc)) {
if ($wantGzip && function_exists('gzopen')) {
$gzHandle = @gzopen('php://output', 'wb9');
if ($gzHandle) {
while (!feof($pipes[1])) { @gzwrite($gzHandle, fread($pipes[1], 8192)); }
@gzclose($gzHandle);
} else {
while (!feof($pipes[1])) { echo fread($pipes[1], 8192); flush(); }
}
} else {
while (!feof($pipes[1])) { echo fread($pipes[1], 8192); flush(); }
}
fclose($pipes[1]);
$stderr = stream_get_contents($pipes[2]);
fclose($pipes[2]);
proc_close($proc);
if ($stderr) { echo "\n-- mysqldump error: " . str_replace(["\r","\n"], ' ', $stderr) . "\n"; }
} else {
echo "-- Unable to execute mysqldump. Ensure it's in PATH.\n";
}
}
@unlink($tmpCnf);
// Drop temp sanitized DB if created
if ($maskSensitive && $tempDbName) {
try { pdo_connect()->exec("DROP DATABASE IF EXISTS `".$tempDbName."`"); } catch (Throwable $ex) {}
}
exit;
}
// Download structure-only SQL (no data)
if (($_POST['action'] ?? '') === 'download_sql_structure') {
if (!csrf_check()) { http_response_code(400); exit('Bad Request'); }
$sourceDB = $_POST['source_db'] ?? '';
$targetDB = trim($_POST['target_db'] ?? ($sourceDB . '_sample'));
$from = ($_POST['from'] ?? 'target') === 'source' ? 'source' : 'target';
$host = $_SESSION['conn']['host'] ?? ($_POST['db_host'] ?? 'localhost');
$port = $_SESSION['conn']['port'] ?? ($_POST['db_port'] ?? '3306');
$user = $_SESSION['conn']['user'] ?? ($_POST['db_user'] ?? '');
$pass = $_SESSION['conn']['pass'] ?? ($_POST['db_pass'] ?? '');
$tables = array_filter(array_map('strval', (array)($_POST['tables'] ?? [])));
$dbDump = $from === 'source' ? ($sourceDB ?: $targetDB) : $targetDB;
$filename = $dbDump . '_structure_' . date('Ymd_His') . '.sql';
while (ob_get_level()) { @ob_end_clean(); }
header('Content-Type: application/sql');
header('Content-Disposition: attachment; filename=' . $filename);
header('X-Content-Type-Options: nosniff');
header('Cache-Control: no-store');
$mysqldump = getenv('MYSQLDUMP_PATH') ?: 'mysqldump';
if (DIRECTORY_SEPARATOR === '\\' && $mysqldump === 'mysqldump') {
$candidates = glob('C:\\wamp64\\bin\\mysql\\mysql*\\bin\\mysqldump.exe');
if (!empty($candidates)) { natsort($candidates); $last = array_values($candidates); $mysqldump = end($last) ?: $mysqldump; }
}
$tmpCnf = tempnam(sys_get_temp_dir(), 'mycnf_');
$cnf = "[client]\nuser={$user}\npassword={$pass}\nhost={$host}\nport={$port}\n";
file_put_contents($tmpCnf, $cnf);
$cmd = $mysqldump . ' --defaults-extra-file=' . escapeshellarg($tmpCnf)
. ' --compact --no-tablespaces --no-data --routines --triggers ';
if (!empty($tables)) {
// Dump only selected tables' structure
$cmd .= escapeshellarg($dbDump);
foreach ($tables as $t) { $cmd .= ' ' . escapeshellarg($t); }
} else {
// Dump whole DB structure
$cmd .= '--databases ' . escapeshellarg($dbDump);
}
$proc = proc_open($cmd, [1 => ['pipe','w'], 2 => ['pipe','w']], $pipes, null, null);
if (is_resource($proc)) {
while (!feof($pipes[1])) { echo fread($pipes[1], 8192); flush(); }
fclose($pipes[1]);
$stderr = stream_get_contents($pipes[2]);
fclose($pipes[2]);
proc_close($proc);
if ($stderr) { echo "\n-- mysqldump error: " . str_replace(["\r","\n"], ' ', $stderr) . "\n"; }
} else {
echo "-- Unable to execute mysqldump. Ensure it's in PATH.\n";
}
@unlink($tmpCnf);
exit;
}
if ($step === 1) {
// just show the connection form
}
if ($step >= 2) {
// Validate connection
$pdo = pdo_connect();
$databases = get_databases($pdo);
if (!$databases) throw new RuntimeException('No databases found (or insufficient privileges).');
}
if ($step === 3) {
$sourceDB = $_POST['source_db'] ?? '';
if (!$sourceDB) throw new RuntimeException('Please select a source database.');
$pdoDB = pdo_connect($sourceDB);
$tables = get_tables($pdoDB, $sourceDB);
if (!$tables) throw new RuntimeException('No base tables found in source DB.');
// Approximate counts from information_schema (fast, may be approximate on InnoDB)
$rowEstimates = get_table_row_estimates($pdo, $sourceDB);
// Sensitive columns preview per table
$sensitiveColsByTable = detect_sensitive_columns($pdo, $sourceDB, $tables);
// Get database summary for backup preflight
$dbSummary = get_database_summary($pdo, $sourceDB);
// Build Mermaid ER diagram
if ($DIAGRAM_ENABLED) {
$relations = get_fk_relations($pdo, $sourceDB);
$columnsByTable = get_table_columns($pdo, $sourceDB, $tables);
$mermaid = build_mermaid_er_graph($tables, $relations, $columnsByTable);
} else {
$mermaid = '';
}
}
if ($step === 4) {
if ($READ_ONLY) { throw new RuntimeException('Read-only mode is enabled. Cloning is disabled on this environment.'); }
$sourceDB = $_POST['source_db'] ?? '';
$targetDB = trim($_POST['target_db'] ?? ($sourceDB . '_sample'));
$allRows = (($_POST['all_rows'] ?? '') === '1');
$rowLimit = max(0, (int)($_POST['row_limit'] ?? 50));
$selectedTables = $_POST['tables'] ?? [];
$maskSensitive = (($_POST['mask_sensitive'] ?? '') === '1');
$orderByPk = (($_POST['order_by_pk'] ?? '') === '1');
if (!$sourceDB) throw new RuntimeException('Missing source database.');
if (!$allRows && $rowLimit <= 0) throw new RuntimeException('Row limit must be > 0.');
$pdo = pdo_connect();
create_target_db($pdo, $targetDB);
// If no tables were checked, default to ALL tables
if (empty($selectedTables)) {
$selectedTables = get_tables(pdo_connect($sourceDB), $sourceDB);
}
// When all rows is requested, pass a very large limit sentinel and disable deterministic ordering effect on LIMIT size
if ($allRows) {
$report = clone_structure_and_copy_rows($pdo, $sourceDB, $targetDB, $selectedTables, PHP_INT_MAX, false);
} else {
$report = clone_structure_and_copy_rows($pdo, $sourceDB, $targetDB, $selectedTables, $rowLimit, $orderByPk);
}
if ($maskSensitive) {
try {
// Only mask when user explicitly selected columns via overrides
$overrides = [];
foreach ((array)($_POST['mask_cols'] ?? []) as $tbl => $cols) {
$tbl = (string)$tbl; if ($tbl === '') continue;
$overrides[$tbl] = array_values(array_unique(array_filter(array_map('strval', (array)$cols))));
}
if (!empty($overrides)) {
apply_masking(pdo_connect($targetDB), $targetDB, $overrides);
} elseif (($_POST['mask_autodetect'] ?? '') === '1' || empty($overrides)) {
// Auto-detect sensitive columns for selected tables only (default fallback when none selected)
$detected = detect_sensitive_columns(pdo_connect($sourceDB), $sourceDB, $selectedTables);
if (!empty($detected)) {
apply_masking(pdo_connect($targetDB), $targetDB, $detected);
}
}
} catch (Throwable $ex) {
// Continue even if masking fails
}
}
// Also compute approximate totals for display in the report
$rowEstimates = get_table_row_estimates($pdo, $sourceDB);
// ER diagram for convenience
if ($DIAGRAM_ENABLED) {
$relations = get_fk_relations($pdo, $sourceDB);
$diagramTables = $selectedTables ?: get_tables(pdo_connect($sourceDB), $sourceDB);
$columnsByTable = get_table_columns($pdo, $sourceDB, $diagramTables);
$mermaid = build_mermaid_er_graph($diagramTables, $relations, $columnsByTable);
} else {
$mermaid = '';
}
}
} catch (Throwable $ex) {
$error = $ex->getMessage();
}
// -----------------------------
// UI (Plates template)
// -----------------------------
$templates = new Engine(__DIR__ . '/views');
$body = $templates->render('app', [
'step' => $step,
'error' => $error,
'databases' => $databases,
'report' => $report,
'post' => $_POST,
'rowEstimates' => $rowEstimates,
'sensitiveColsByTable' => $sensitiveColsByTable ?? [],
'mermaid' => $mermaid,
'diagramEnabled' => $DIAGRAM_ENABLED,
'authed' => $isAuthed,
'dbSummary' => $dbSummary ?? null,
// Admin convenience defaults (no secrets)
'defaults' => [
'db_host' => getenv('DEFAULT_DB_HOST') ?: 'localhost',
'db_port' => getenv('DEFAULT_DB_PORT') ?: '3306',
'db_user' => getenv('DEFAULT_DB_USER') ?: '',
],
]);
echo $templates->render('template', [
'title' => 'SQL PowerTools',
'body' => $body,
'authed' => $isAuthed,
'error' => $error,
]);