mirror of
https://github.com/Terranom674/Piwigo_Bratonien_Tools.git
synced 2026-09-19 16:24:33 +00:00
298 lines
9.8 KiB
PHP
298 lines
9.8 KiB
PHP
<?php
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if (!defined('PHPWG_ROOT_PATH'))
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{
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die('Hacking attempt!');
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}
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function bratonien_tools_webdav_materialize_source_info($image_id)
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{
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static $cache = array();
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$image_id = (int)$image_id;
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if ($image_id < 1) return null;
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$warmup_cli = PHP_SAPI === 'cli'
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&& strpos((string)($_SERVER['HTTP_USER_AGENT'] ?? ''), 'Bratonien-WebDAV-Cache-Warmup/') === 0;
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if (!$warmup_cli && array_key_exists($image_id, $cache)) return $cache[$image_id];
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$result = pwg_query('SELECT path, coi FROM '.IMAGES_TABLE.' WHERE id='.$image_id.' LIMIT 1');
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if (!pwg_db_num_rows($result)) return $cache[$image_id] = null;
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$row = pwg_db_fetch_assoc($result);
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$path = (string)($row['path'] ?? '');
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if ($path === '') return $cache[$image_id] = null;
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$absolute = $path;
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if (strpos($absolute, '/') !== 0)
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{
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$absolute = PHPWG_ROOT_PATH.ltrim(preg_replace('#^\./#', '', $absolute), '/');
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}
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$resolved = realpath($absolute);
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if ($resolved === false) return $cache[$image_id] = null;
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$normalized = str_replace('\\', '/', $resolved);
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if (!preg_match('#/nc-webdav-source/connection-([0-9]+)/root-([0-9]+)/(.*)$#', $normalized, $match))
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{
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return $cache[$image_id] = null;
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}
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$connection_id = (int)$match[1];
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$root_fileid = (int)$match[2];
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$relative_path = trim((string)$match[3], '/');
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if ($connection_id < 1 || $root_fileid < 1 || $relative_path === '')
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{
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return $cache[$image_id] = null;
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}
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$table = defined('BRATONIEN_TOOLS_NC_CONNECTIONS_TABLE')
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? BRATONIEN_TOOLS_NC_CONNECTIONS_TABLE
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: $GLOBALS['prefixeTable'].'bratonien_tools_nc_connections';
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$connection_result = pwg_query('SELECT config_json FROM `'.$table.'` WHERE id='.$connection_id.' LIMIT 1');
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if (!pwg_db_num_rows($connection_result)) return $cache[$image_id] = null;
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$connection_row = pwg_db_fetch_assoc($connection_result);
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$config = json_decode((string)$connection_row['config_json'], true);
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if (!is_array($config) || (string)($config['source_mode'] ?? '') !== 'webdav-placeholder')
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{
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return $cache[$image_id] = null;
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}
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$root_found = false;
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$root_path = '';
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$roots = isset($config['roots']) && is_array($config['roots']) ? $config['roots'] : array();
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foreach ($roots as $root)
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{
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if ((int)($root['fileid'] ?? 0) === $root_fileid)
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{
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$root_found = true;
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$root_path = trim((string)($root['webdav_path'] ?? ''), '/');
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break;
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}
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}
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if (!$root_found) return $cache[$image_id] = null;
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$webdav_path = trim($root_path === '' ? $relative_path : $root_path.'/'.$relative_path, '/');
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if ($webdav_path === '') return $cache[$image_id] = null;
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$content_type = '';
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$size = 0;
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$etag = '';
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$fileid = 0;
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$width = 0;
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$height = 0;
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$state_dir = rtrim((string)($config['state_dir'] ?? ''), '/');
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if ($state_dir !== '')
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{
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$mapping_file = $state_dir.'/webdav-map.json';
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if (is_readable($mapping_file))
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{
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$mapping = json_decode((string)file_get_contents($mapping_file), true);
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if (is_array($mapping) && isset($mapping['files']) && is_array($mapping['files']))
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{
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$files = $mapping['files'];
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$entry = $files[$resolved] ?? $files[$normalized] ?? null;
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if (!is_array($entry))
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{
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foreach ($files as $candidate)
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{
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if (!is_array($candidate) || (string)($candidate['kind'] ?? '') !== 'file') continue;
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if (trim((string)($candidate['webdav_path'] ?? ''), '/') !== $webdav_path) continue;
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$entry = $candidate;
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break;
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}
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}
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if (is_array($entry) && (string)($entry['kind'] ?? '') === 'file')
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{
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$mapped_path = trim((string)($entry['webdav_path'] ?? ''), '/');
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if ($mapped_path !== '') $webdav_path = $mapped_path;
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$content_type = (string)($entry['content_type'] ?? '');
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$size = (int)($entry['size'] ?? 0);
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$etag = (string)($entry['etag'] ?? '');
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$fileid = (int)($entry['fileid'] ?? 0);
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$width = (int)($entry['width'] ?? 0);
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$height = (int)($entry['height'] ?? 0);
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}
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}
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}
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}
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return $cache[$image_id] = array(
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'image_id'=>$image_id,
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'connection_id'=>$connection_id,
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'root_fileid'=>$root_fileid,
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'relative_path'=>$relative_path,
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'webdav_path'=>$webdav_path,
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'content_type'=>$content_type,
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'size'=>$size,
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'etag'=>$etag,
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'fileid'=>$fileid,
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'width'=>$width,
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'height'=>$height,
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'state_dir'=>$state_dir,
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'coi'=>$row['coi'] ?? null,
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);
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}
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function bratonien_tools_webdav_materialize_image_url($image_id)
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{
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$info = bratonien_tools_webdav_materialize_source_info($image_id);
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if (!$info) return null;
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$url = get_root_url().'plugins/'.BRATONIEN_TOOLS_ID.'/webdav-image.php?id='.(int)$image_id;
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if ($info['etag'] !== '') $url .= '&v='.rawurlencode(substr(sha1($info['etag']), 0, 12));
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return $url;
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}
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function bratonien_tools_webdav_materialize_custom_params($key)
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{
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if (!class_exists('DerivativeParams') || !class_exists('SizingParams')) return null;
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$tokens = explode('_', trim((string)$key));
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if (!$tokens || $tokens[0] === '') return null;
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$parse_size = function($value)
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{
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if (!preg_match('/^[0-9]+(?:x[0-9]+)?$/', (string)$value)) return null;
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$parts = explode('x', (string)$value, 2);
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$width = (int)$parts[0];
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$height = count($parts) === 1 ? $width : (int)$parts[1];
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if ($width < 1 || $height < 1 || $width > 20000 || $height > 20000) return null;
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return array($width, $height);
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};
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$token = array_shift($tokens);
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$crop = 0;
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$min_size = null;
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if (isset($token[0]) && $token[0] === 's')
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{
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$size = $parse_size(substr($token, 1));
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}
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elseif (isset($token[0]) && $token[0] === 'e')
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{
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$crop = 1;
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$size = $min_size = $parse_size(substr($token, 1));
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}
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else
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{
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if (count($tokens) < 2) return null;
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$size = $parse_size($token);
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$crop_token = (string)array_shift($tokens);
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$min_size = $parse_size(array_shift($tokens));
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if (!preg_match('/^[a-z]$/', $crop_token) || $min_size === null) return null;
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$crop = function_exists('char_to_fraction') ? char_to_fraction($crop_token) : 0;
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}
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if ($size === null) return null;
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$params = new DerivativeParams(new SizingParams($size, $crop, $min_size));
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if (class_exists('ImageStdParams')) ImageStdParams::apply_global($params);
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return $params;
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}
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function bratonien_tools_webdav_materialize_variant_from_params($params)
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{
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if (!is_object($params) || !class_exists('ImageStdParams')) return null;
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$type = (string)($params->type ?? '');
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$defined = ImageStdParams::get_defined_type_map();
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if ($type !== '' && defined('IMG_CUSTOM') && $type !== IMG_CUSTOM && isset($defined[$type]))
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{
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return 'standard:'.$type;
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}
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if (!method_exists($params, 'add_url_tokens')) return null;
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$tokens = array();
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$params->add_url_tokens($tokens);
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if (!$tokens) return null;
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$key = implode('_', $tokens);
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if (!preg_match('/^[A-Za-z0-9_x-]+$/', $key)) return null;
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return 'custom:'.$key;
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}
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function bratonien_tools_webdav_materialize_params_from_variant($variant)
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{
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$variant = trim((string)$variant);
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if ($variant === '' || !class_exists('ImageStdParams')) return null;
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if (strpos($variant, 'standard:') === 0)
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{
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$type = substr($variant, strlen('standard:'));
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$defined = ImageStdParams::get_defined_type_map();
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return isset($defined[$type]) ? $defined[$type] : null;
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}
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if (strpos($variant, 'custom:') === 0)
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{
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$key = substr($variant, strlen('custom:'));
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if (!preg_match('/^[A-Za-z0-9_x-]+$/', $key)) return null;
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return bratonien_tools_webdav_materialize_custom_params($key);
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}
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return null;
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}
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function bratonien_tools_webdav_materialize_b64url_encode($value)
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{
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return rtrim(strtr(base64_encode((string)$value), '+/', '-_'), '=');
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}
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function bratonien_tools_webdav_materialize_after_signature($image_id, $variant, $after_url)
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{
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global $conf;
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$key = !empty($conf['secret_key']) ? $conf['secret_key'] : ($conf['db_password'] ?? 'bratonien-tools');
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return hash_hmac('sha256', (int)$image_id.'|'.(string)$variant.'|'.(string)$after_url, $key);
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}
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function bratonien_tools_webdav_materialize_derivative_url($image_id, $variant, array $info, $after_url='')
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{
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$url = get_root_url().'plugins/'.BRATONIEN_TOOLS_ID.'/webdav-derivative-guard.php?id='.(int)$image_id.'&variant='.rawurlencode($variant);
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if ($after_url !== '')
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{
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$url .= '&after='.rawurlencode(bratonien_tools_webdav_materialize_b64url_encode($after_url));
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$url .= '&sig='.rawurlencode(bratonien_tools_webdav_materialize_after_signature($image_id, $variant, $after_url));
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}
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if (!empty($info['etag'])) $url .= '&v='.rawurlencode(substr(sha1((string)$info['etag']), 0, 12));
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return $url;
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}
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function bratonien_tools_filter_webdav_materialize_src_url($url, $src_image)
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{
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if (!is_object($src_image) || empty($src_image->id)) return $url;
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$webdav_url = bratonien_tools_webdav_materialize_image_url((int)$src_image->id);
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return $webdav_url ?: $url;
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}
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function bratonien_tools_filter_webdav_materialize_derivative_url($url, $params, $src_image, $rel_url)
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{
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if (!is_object($src_image) || empty($src_image->id)) return $url;
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$image_id = (int)$src_image->id;
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$info = bratonien_tools_webdav_materialize_source_info($image_id);
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if (!$info) return $url;
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try
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{
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$derivative = new DerivativeImage($params, $src_image);
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if ($derivative->same_as_source())
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{
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$source_url = bratonien_tools_webdav_materialize_image_url($image_id);
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return $source_url ?: $url;
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}
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$path = $derivative->get_path();
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if ($path !== '' && is_file($path) && is_readable($path)) return $url;
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$variant = bratonien_tools_webdav_materialize_variant_from_params($params);
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if ($variant === null) return $url;
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return bratonien_tools_webdav_materialize_derivative_url($image_id, $variant, $info, (string)$url);
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}
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catch (Throwable $e)
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{
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error_log('Bratonien WebDAV materialize derivative #'.$image_id.': '.$e->getMessage());
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return $url;
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}
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}
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