oidplus.min.js.php

<?php

/*
 * OIDplus 2.0
 * Copyright 2019 - 2024 Daniel Marschall, ViaThinkSoft
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

use ViaThinkSoft\OIDplus\Core\OIDplus;
use ViaThinkSoft\OIDplus\Core\OIDplusLanguagePlugin;
use MatthiasMullie\Minify;

require_once __DIR__ . '/includes/oidplus.inc.php';

error_reporting(OIDplus::baseConfig()->getValue('DEBUG') ? E_ALL : 0);
@ini_set('display_errors', OIDplus::baseConfig()->getValue('DEBUG') ? '1' : '0');

$files = array();

# ---

$req_file = ($_REQUEST["file"] ?: "base");
if ($req_file != "base") {
	$do_minify = false;
	$inc_file = realpath(__DIR__ . DIRECTORY_SEPARATOR . $req_file);
	if (!str_starts_with($inc_file, __DIR__ . DIRECTORY_SEPARATOR) || !str_ends_with($inc_file, ".js")) {
		http_response_code(404);
	} else {
		$files[] = $inc_file;
	}
} else {
	$do_minify = OIDplus::baseConfig()->getValue('MINIFY_JS', true);

	$files[] = 'var DEFAULT_LANGUAGE = ' . json_encode(OIDplus::getDefaultLang()) . ';';

	OIDplus::registerAllPlugins('language', OIDplusLanguagePlugin::class, null);
	$translation_array = OIDplus::getTranslationArray();
	$files[] = 'var language_messages = ' . json_encode($translation_array) . ';';

	//$tbl_prefix = OIDplus::baseConfig()->getValue('TABLENAME_PREFIX','');
	//$files[] = 'var language_tblprefix = '.json_encode($tbl_prefix).';';
	$files[] = 'var language_tblprefix = "<tableprefix>";'; // hide TABLENAME_PREFIX from the client

	$files[] = 'var oidplus_webpath_relative = ' . js_escape(OIDplus::webpath(null, OIDplus::PATH_RELATIVE_TO_ROOT)) . ';';
	$files[] = 'var oidplus_webpath_absolute_canonical = ' . js_escape(OIDplus::webpath(null, OIDplus::PATH_ABSOLUTE_CANONICAL)) . ';';

	// The CSRF token is set by index.php
	// TODO: can there race-conditions if we set csrf_token here? Or should we set it as inline-script in index.php ?
	$files[] = 'var csrf_token = ' . js_escape($_COOKIE['csrf_token'] ?? '') . ';';

	$files[] = 'var samesite_policy = ' . js_escape(OIDplus::baseConfig()->getValue('COOKIE_SAMESITE_POLICY', 'Strict')) . ';';

	$files[] = process_file(__DIR__ . '/includes/oidplus_functions.js');
	$files[] = process_file(__DIR__ . '/includes/oidplus_language.js');
	$files[] = process_file(__DIR__ . '/includes/oidplus_base.js');

	$manifests = OIDplus::getAllPluginManifests(implode(',', OIDplus::INTERACTIVE_PLUGIN_TYPES), true); // due to interface gridGeneratorLinks (INTF_OID_1_3_6_1_4_1_37476_2_5_2_3_6) this plugin type can also have CSS
	foreach ($manifests as $manifest) {
		foreach ($manifest->getJSFiles() as $js_file) {
			$files[] = process_file($js_file);
		}
	}
}

# ---

if ($do_minify) {
	$minifier = null;
	foreach ($files as $file) {
		if (is_null($minifier)) {
			$minifier = new Minify\JS($file);
		} else {
			$minifier->add($file);
		}
	}
	$out = is_null($minifier) ? '' : $minifier->minify();
} else {
	$out = '';
	foreach ($files as $file) {
		if (file_exists($file)) {
			$out .= file_get_contents($file)."\n";
		} else {
			$out .= "$file\n";
		}
	}
}

# ---

if (OIDplus::baseConfig()->getValue('DEBUG')) {
	// In debug mode, we might get PHP error messages (see "error_reporting" above),
	// so it would be severe if we would allow ETAG! (since $out does not contain the PHP error messages!)
	header('Content-Type:application/javascript');
	echo $out;
} else {
	httpOutWithETag($out, 'application/javascript', 'oidplus_'.sha1($req_file).'.js');
}

# ---

/**
 * @param string $filename
 * @return string
 */
function process_file(string $filename): string {
	global $do_minify;

	$filename_min = preg_replace('/\.[^.]+$/', '.min.js', $filename);
	$filename_full = $filename;

	if ($do_minify) {
		if (file_exists($filename_min)) {
			$filename = $filename_min;
		} else if (file_exists($filename_full)) {
			$filename = $filename_full;
		} else {
			return "console.error('Script file not found: $filename');";
		}
	} else {
		if (file_exists($filename_full)) {
			$filename = $filename_full;
		} else if (file_exists($filename_min)) {
			$filename = $filename_min;
		} else {
			return "console.error('Script file not found: $filename');";
		}
	}

	$thisdir = __DIR__;
	$thisdir = str_replace('\\', '/', $thisdir); // change Windows Backslashes into Web-Slashes
	$filename = str_replace('\\', '/', $filename); // change Windows Backslashes into Web-Slashes
	$dir = dirname((strpos($filename, $thisdir.'/') === 0) ? substr($filename, strlen($thisdir.'/')) : $filename);
	$cont = file_get_contents($filename);

	// TODO: WHY???? "DevTools failed to load SourceMap: Could not load content for http://localhost/oidplus/bootstrap.css.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE"
	$cont = str_replace("//# sourceMappingURL=", "//# sourceMappingURL=".$dir.'/', $cont);

	return $cont."\n\n";
}