<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * Simple script to set correct charset for changelog
 *
 * @package PhpMyAdmin
 */
declare(strict_types=1);

use PhpMyAdmin\Response;
use PhpMyAdmin\Template;

if (! defined('ROOT_PATH')) {
    define('ROOT_PATH', __DIR__ . DIRECTORY_SEPARATOR);
}

/**
 * Gets core libraries and defines some variables
 */
require ROOT_PATH . 'libraries/common.inc.php';

/** @var Template $template */
$template = $containerBuilder->get('template');

$response = Response::getInstance();
$response->disable();
$response->getHeader()->sendHttpHeaders();

$filename = CHANGELOG_FILE;

/**
 * Read changelog.
 */
// Check if the file is available, some distributions remove these.
if (@is_readable($filename)) {
    // Test if the if is in a compressed format
    if (substr($filename, -3) == '.gz') {
        ob_start();
        readgzfile($filename);
        $changelog = ob_get_contents();
        ob_end_clean();
    } else {
        $changelog = file_get_contents($filename);
    }
} else {
    printf(
        __(
            'The %s file is not available on this system, please visit ' .
            '%s for more information.'
        ),
        $filename,
        '<a href="https://www.phpmyadmin.net/">phpmyadmin.net</a>'
    );
    exit;
}

/**
 * Whole changelog in variable.
 */
$changelog = htmlspecialchars($changelog);

$github_url = 'https://github.com/phpmyadmin/phpmyadmin/';
$faq_url = 'https://docs.phpmyadmin.net/en/latest/faq.html';

$replaces = [
    '@(https?://[./a-zA-Z0-9.-_-]*[/a-zA-Z0-9_])@'
    => '<a href="url.php?url=\\1">\\1</a>',

    // mail address
    '/([0-9]{4}-[0-9]{2}-[0-9]{2}) (.+[^ ]) +&lt;(.*@.*)&gt;/i'
    => '\\1 <a href="mailto:\\3">\\2</a>',

    // FAQ entries
    '/FAQ ([0-9]+)\.([0-9a-z]+)/i'
    => '<a href="url.php?url=' . $faq_url . '#faq\\1-\\2">FAQ \\1.\\2</a>',

    // GitHub issues
    '/issue\s*#?([0-9]{4,5}) /i'
    => '<a href="url.php?url=' . $github_url . 'issues/\\1">issue #\\1</a> ',

    // CVE/CAN entries
    '/((CAN|CVE)-[0-9]+-[0-9]+)/'
    => '<a href="url.php?url=https://cve.mitre.org/cgi-bin/cvename.cgi?name=\\1">\\1</a>',

    // PMASAentries
    '/(PMASA-[0-9]+-[0-9]+)/'
    => '<a href="url.php?url=https://www.phpmyadmin.net/security/\\1/">\\1</a>',

    // Highlight releases (with links)
    '/([0-9]+)\.([0-9]+)\.([0-9]+)\.0 (\([0-9-]+\))/'
    => '<a id="\\1_\\2_\\3"></a>'
        . '<a href="url.php?url=' . $github_url . 'commits/RELEASE_\\1_\\2_\\3">'
        . '\\1.\\2.\\3.0 \\4</a>',
    '/([0-9]+)\.([0-9]+)\.([0-9]+)\.([1-9][0-9]*) (\([0-9-]+\))/'
    => '<a id="\\1_\\2_\\3_\\4"></a>'
        . '<a href="url.php?url=' . $github_url . 'commits/RELEASE_\\1_\\2_\\3_\\4">'
        . '\\1.\\2.\\3.\\4 \\5</a>',

    // Highlight releases (not linkable)
    '/(    ### )(.*)/'
    => '\\1<b>\\2</b>',

    // Links target and rel
    '/a href="/' => 'a target="_blank" rel="noopener noreferrer" href="',

];

header('Content-type: text/html; charset=utf-8');

echo $template->render('changelog', [
    'changelog' => preg_replace(array_keys($replaces), $replaces, $changelog),
]);