mirror of
https://github.com/Terranom674/Piwigo_Bratonien_Tools.git
synced 2026-09-19 11:44:31 +00:00
Add Piwigo-owned derivative request bridge for shadow paths
This commit is contained in:
Terranom674
194
runtime/lib/piwigo-cache-request-by-shadow.php
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194
runtime/lib/piwigo-cache-request-by-shadow.php
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<?php
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if (PHP_SAPI !== 'cli')
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{
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http_response_code(404);
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exit;
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}
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$piwigo_root = realpath(dirname(__DIR__, 4));
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if ($piwigo_root === false)
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{
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fwrite(STDERR, "Piwigo-Root wurde nicht gefunden.\n");
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exit(1);
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}
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define('PHPWG_ROOT_PATH', rtrim($piwigo_root, DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR);
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$_SERVER['REMOTE_ADDR'] = '127.0.0.1';
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$_SERVER['SERVER_ADDR'] = '127.0.0.1';
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$_SERVER['SERVER_NAME'] = 'localhost';
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$_SERVER['HTTP_HOST'] = 'localhost';
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$_SERVER['SERVER_PORT'] = '80';
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$_SERVER['REQUEST_METHOD'] = 'GET';
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$_SERVER['REQUEST_URI'] = '/';
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$_SERVER['SCRIPT_NAME'] = '/plugins/bratonien_tools/runtime/lib/piwigo-cache-request-by-shadow.php';
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$_SERVER['PHP_SELF'] = $_SERVER['SCRIPT_NAME'];
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$_SERVER['QUERY_STRING'] = '';
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$_SERVER['HTTP_USER_AGENT'] = 'Bratonien-Piwigo-Shadow-Cache-Bridge/0.9.7.1.17';
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$_SERVER['HTTPS'] = 'off';
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require_once(PHPWG_ROOT_PATH.'include/common.inc.php');
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require_once(PHPWG_ROOT_PATH.'include/derivative.inc.php');
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if (!defined('BRATONIEN_TOOLS_PATH'))
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{
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fwrite(STDERR, "Bratonien Tools ist nicht aktiv.\n");
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exit(1);
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}
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require_once(BRATONIEN_TOOLS_PATH.'include/nc_connector.inc.php');
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require_once(BRATONIEN_TOOLS_PATH.'include/webdav_cache_validation.inc.php');
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require_once(BRATONIEN_TOOLS_PATH.'include/webdav_materialize_runtime.inc.php');
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function bratonien_tools_shadow_bridge_fail($message, $code=1)
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{
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fwrite(STDERR, $message."\n");
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exit((int)$code);
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}
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function bratonien_tools_shadow_bridge_i_request($target)
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{
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$root = PHPWG_ROOT_PATH.PWG_DERIVATIVE_DIR;
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$target = str_replace('\\', '/', (string)$target);
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$root = str_replace('\\', '/', (string)$root);
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if (strpos($target, $root) !== 0) return null;
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$relative = ltrim(substr($target, strlen($root)), '/');
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if ($relative === '') return null;
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return '/i.php?/'.implode('/', array_map('rawurlencode', explode('/', $relative)));
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}
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function bratonien_tools_shadow_bridge_call_i($request, &$detail=null)
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{
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$detail = '';
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$runner = BRATONIEN_TOOLS_PATH.'runtime/lib/piwigo-derivative-call.php';
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if (!is_file($runner)) { $detail = 'Piwigo-Derivataufruf fehlt.'; return false; }
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if (!function_exists('exec')) { $detail = 'PHP exec() ist deaktiviert.'; return false; }
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$output = array();
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$exit = 1;
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@exec(escapeshellarg(PHP_BINARY).' '.escapeshellarg($runner).' --request='.escapeshellarg($request).' 2>&1', $output, $exit);
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if ($exit !== 0)
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{
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$detail = 'Piwigo-Aufruf Exit '.$exit;
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if ($output) $detail .= ': '.implode(' ', array_slice($output, -3));
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return false;
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}
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return true;
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}
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function bratonien_tools_shadow_bridge_variants(array $row, $stage)
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{
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$src = new SrcImage($row);
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$variants = array();
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foreach (ImageStdParams::get_defined_type_map() as $type=>$params)
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{
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$derivative = new DerivativeImage($params, $src);
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if ($derivative->same_as_source()) continue;
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$size = $derivative->get_size();
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$max_edge = max((int)($size[0] ?? 0), (int)($size[1] ?? 0));
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$priority = $max_edge > 0 && $max_edge <= 1920;
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if (($stage === 1 && $priority) || ($stage === 2 && !$priority))
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{
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$variants[] = array('name'=>'standard:'.$type, 'derivative'=>$derivative, 'params'=>$params, 'target'=>$derivative->get_path());
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}
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}
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foreach (ImageStdParams::$custom as $key=>$last_used)
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{
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$params = bratonien_tools_webdav_materialize_custom_params($key);
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if (!$params) continue;
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$derivative = new DerivativeImage($params, $src);
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if ($derivative->same_as_source()) continue;
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$size = $derivative->get_size();
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$max_edge = max((int)($size[0] ?? 0), (int)($size[1] ?? 0));
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$priority = $max_edge > 0 && $max_edge <= 1920;
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if (($stage === 1 && $priority) || ($stage === 2 && !$priority))
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{
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$variants[] = array('name'=>'custom:'.$key, 'derivative'=>$derivative, 'params'=>$params, 'target'=>$derivative->get_path());
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}
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}
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return $variants;
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}
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$connection_id = 0;
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$shadow_relative = '';
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$stage = 0;
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foreach ($argv as $arg)
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{
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if (preg_match('/^--connection-id=(\d+)$/', $arg, $m)) $connection_id = (int)$m[1];
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elseif (strpos($arg, '--shadow-relative=') === 0) $shadow_relative = ltrim(substr($arg, strlen('--shadow-relative=')), '/');
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elseif (preg_match('/^--stage=([12])$/', $arg, $m)) $stage = (int)$m[1];
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}
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if ($connection_id < 1 || $shadow_relative === '' || !in_array($stage, array(1,2), true))
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{
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bratonien_tools_shadow_bridge_fail('Parameter --connection-id, --shadow-relative und --stage=1|2 werden benötigt.', 2);
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}
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if (strpos($shadow_relative, '..') !== false || strpos($shadow_relative, "\0") !== false)
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{
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bratonien_tools_shadow_bridge_fail('Unsicherer Shadow-Pfad.', 2);
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}
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$connection = bratonien_tools_nc_connector_connection($connection_id, false);
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if (!$connection || empty($connection['enabled'])) bratonien_tools_shadow_bridge_fail('WebDAV-Verbindung wurde nicht gefunden.');
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$config = isset($connection['config']) && is_array($connection['config']) ? $connection['config'] : array();
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$gallery_root = rtrim((string)($config['parallel_gallery_root'] ?? ''), '/');
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if ($gallery_root === '' || !is_dir($gallery_root)) bratonien_tools_shadow_bridge_fail('Shadow-Tree der Verbindung fehlt.');
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$shadow_absolute = $gallery_root.'/'.$shadow_relative;
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if (!is_link($shadow_absolute)) bratonien_tools_shadow_bridge_fail('Shadow-Datei ist kein Symlink: '.$shadow_relative);
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$shadow_real = realpath($shadow_absolute);
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if ($shadow_real === false || !is_file($shadow_real)) bratonien_tools_shadow_bridge_fail('Shadow-Ziel ist nicht lesbar: '.$shadow_relative);
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$root = rtrim(str_replace('\\', '/', PHPWG_ROOT_PATH), '/');
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$gallery = rtrim(str_replace('\\', '/', $gallery_root), '/');
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if (strpos($gallery.'/', $root.'/') !== 0) bratonien_tools_shadow_bridge_fail('Shadow-Tree liegt außerhalb von Piwigo.');
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$relative_gallery = ltrim(substr($gallery, strlen($root)), '/');
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$db_path = './'.$relative_gallery.'/'.$shadow_relative;
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$result = pwg_query("SELECT * FROM ".IMAGES_TABLE." WHERE path='".pwg_db_real_escape_string($db_path)."' LIMIT 2");
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$rows = array();
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while ($row = pwg_db_fetch_assoc($result)) $rows[] = $row;
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if (count($rows) !== 1)
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{
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bratonien_tools_shadow_bridge_fail('Piwigo kann den Shadow-Pfad nicht eindeutig einem Bild zuordnen: '.$db_path);
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}
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$row = $rows[0];
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$variants = bratonien_tools_shadow_bridge_variants($row, $stage);
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$generated = 0;
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$already = 0;
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foreach ($variants as $variant)
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{
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$reason = '';
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if (bratonien_tools_webdav_derivative_cache_valid($variant['target'], $variant['derivative'], $variant['params'], $reason))
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{
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$already++;
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continue;
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}
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$request = bratonien_tools_shadow_bridge_i_request($variant['target']);
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if ($request === null) bratonien_tools_shadow_bridge_fail($variant['name'].': ungültiger Piwigo-Derivatpfad.');
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$detail = '';
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if (!bratonien_tools_shadow_bridge_call_i($request, $detail))
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{
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bratonien_tools_shadow_bridge_fail($variant['name'].': '.$detail);
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}
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clearstatcache(true, $variant['target']);
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$reason = '';
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if (!bratonien_tools_webdav_derivative_cache_valid($variant['target'], $variant['derivative'], $variant['params'], $reason))
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{
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bratonien_tools_shadow_bridge_fail($variant['name'].': Piwigo hat kein gültiges Derivat erzeugt ('.$reason.').');
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}
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$generated++;
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}
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echo json_encode(array(
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'ok'=>true,
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'connection_id'=>$connection_id,
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'shadow_relative'=>$shadow_relative,
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'stage'=>$stage,
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'piwigo_image_id'=>(int)$row['id'],
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'variants'=>count($variants),
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'generated'=>$generated,
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'already_valid'=>$already,
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), JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES)."\n";
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exit(0);
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