mkht.php/mkht.php
2023-11-24 20:50:46 +01:00

313 lines
10 KiB
PHP
Executable file

#!/usr/bin/php
<?php
if (php_sapi_name() !== 'cli')
exit('Must be run from CLI.' . PHP_EOL);
umask(0022);
const LF = "\n";
define('ROOT', dirname($_SERVER['SCRIPT_FILENAME']));
if (!extension_loaded('tidy'))
echo 'PHP tidy extension unavailable. Feature disabled.' . PHP_EOL;
foreach (['pandoc', 'gzip'] as $command) {
exec('command -v ' . $command, result_code: $code);
if ($code !== 0)
exit($command . ' command not available.' . PHP_EOL);
}
foreach ($argv as $arg) {
if ($arg === '-f')
$opt['force'] = true;
else
$args[] = $arg;
}
$opt['force'] ??= false;
$site = $args[1] ?? getcwd();
define('SITE', str_ends_with($site, '/') ? $site : $site . '/');
define('DESTINATION', $args[2] ?? 'dns');
if (file_exists(SITE . 'config.ini'))
$config = parse_ini_file(SITE . 'config.ini');
$config['header'] ??= false;
$config['author'] ??= NULL;
$config['base-url'] ??= [];
$config['center-index'] ??= false;
$config['default-lang'] ??= NULL;
$config['announce-css'] ??= false;
$config['announce-feed'] ??= false;
if (!isset($config['id'])) {
$config['id'] = bin2hex(random_bytes(32));
file_put_contents(SITE . 'config.ini', 'id = "' . $config['id'] . '"' . LF, FILE_APPEND);
}
// Determine whether links need to use Onion or DNS
function clearnetOrOnion($clearnet_url, $onion_url) {
return (DESTINATION === 'onion') ? $onion_url : $clearnet_url;
}
$dirs_last_update = [];
$pages_langs = [];
$nodes = new RecursiveIteratorIterator(new RecursiveDirectoryIterator(SITE, RecursiveDirectoryIterator::SKIP_DOTS));
foreach($nodes as $node) {
$node_info = new SplFileInfo($node->getPathName());
$src = $node_info->getPathname();
if (str_starts_with($src, SITE . 'target/'))
continue;
$target = str_replace(SITE, SITE . 'target/', $src);
$path_parts_src = pathinfo($src);
$path_parts_target = pathinfo($target);
if (preg_match('#/\.(?!htaccess|well-known)#', $src) !== 0) // Skip hidden nodes other than .htaccess and .well-known
continue;
if ($node_info->getType() !== 'file')
continue;
if (in_array('draft', explode('.', $path_parts_target['basename']), true))
continue;
if (!file_exists($path_parts_target['dirname'])) // Create parent directory if needed
mkdir($path_parts_target['dirname'], 0755, true);
copy($src, $target);
if ($node_info->getExtension() !== 'md')
continue;
preg_match('/(?<pagename>[-\w]+)(?:\.(?<lang>[a-z]{2}))?\.md/', $path_parts_src['basename'], $matches);
if ($matches['pagename'] === strtoupper($matches['pagename'])) // Ignore uppercase-only filenames (like README.md)
continue;
$pages[] = $node;
$lang = $matches['lang'] ?? $config['default-lang'] ?? exit('no language found for ' . $src . LF);
$pages_langs[$path_parts_src['dirname'] . '/' . $matches['pagename']][] = $lang;
$files_langs[$src] = $lang;
$page_names[$src] = $matches['pagename'];
}
foreach ($pages as $node) {
$node_info = new SplFileInfo($node->getPathName());
$src = $node_info->getPathname();
$target = str_replace(SITE, SITE . 'target/', $src);
$path_parts_src = pathinfo($src);
$path_parts_target = pathinfo($target);
$base_filepath_src = $path_parts_src['dirname'] . '/' . $path_parts_src['filename'];
$base_filepath_target = $path_parts_target['dirname'] . '/' . $path_parts_target['filename'];
$content = file_get_contents($src);
$lang = $files_langs[$src];
preg_match('/^# (?<title>.*)$/Dm', $content, $matches);
$title = $matches['title'] ?? NULL;
if (!file_exists($base_filepath_target . '.html') OR (filemtime($src) > filemtime($base_filepath_target . '.html')) OR $opt['force']) {
echo 'Compiling ' . $src . ' ' . date("Y-m-d H:i:s", $node_info->getMTime()) . LF;
// Execute PHP code
ob_start();
eval('?>' . $content);
$content = ob_get_clean();
// Convert Gemtext to Markdown
if ($path_parts_target['extension'] === 'gmi' OR $path_parts_target['extension'] === 'md') {
$content = preg_replace_callback(
'/^=>\h*(?<addr>\S+)(:?\h+(?<title>\V+))?$/m',
function ($matches) {
if (!str_contains($matches['addr'], ':') AND str_ends_with($matches['addr'], '.gmi'))
$matches['addr'] = substr($matches['addr'], 0, -3) . 'md';
return '[' . ($matches['title'] ?? $matches['addr']) . '](' . $matches['addr'] . ')';
},
$content,
);
}
// Compile Markdown to HTML
$process = proc_open('pandoc --fail-if-warnings --section-divs -f markdown-citations-native_divs-native_spans+abbreviations+hard_line_breaks+lists_without_preceding_blankline+multiline_tables+fenced_divs+bracketed_spans+markdown_attribute -t html --wrap none', [
0 => ['pipe', 'r'],
1 => ['pipe', 'w'],
], $pipes);
if (is_resource($process) !== true)
exit('Can\'t spawn pandoc.' . PHP_EOL);
fwrite($pipes[0], $content);
fclose($pipes[0]);
$content = stream_get_contents($pipes[1]);
fclose($pipes[1]);
if (proc_close($process) !== 0)
exit('pandoc failed.' . PHP_EOL);
// .md > .html for local links
$content = preg_replace('/ href="([^:"]+)\.md"/', ' href="$1.html"', $content);
$relative_root_path = str_repeat('../', substr_count(str_replace(SITE . 'target', '', $path_parts_target['dirname']), '/'));
ob_start();
?>
<!DOCTYPE html>
<html lang="<?= $lang ?>">
<head>
<meta charset="utf-8">
<?php
if (isset($title) AND isset($config['title']))
echo '<title>' . $title . ' · ' . $config['title'] . '</title>';
else if (isset($title))
echo '<title>' . $title . '</title>';
else if (isset($config['title']))
echo '<title>' . $config['title'] . '</title>';
?>
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="referrer" content="no-referrer">
<?php
if (isset($config['author']))
echo ' <meta name="author" content="' . $config['author'] . '">';
?>
<link rel="canonical" href="<?= ($page_names[$src] === 'index') ? './' : $page_names[$src] ?>">
<?php
if ($config['announce-feed'])
echo ' <link rel="alternate" type="application/atom+xml" href="' . $relative_root_path . 'feed.atom">' . LF;
if ($config['announce-css']) {
if (file_exists(SITE . 'style.css'))
echo ' <link rel="stylesheet" media="screen" href="' . $relative_root_path . 'style.css">' . LF;
echo ' <link rel="stylesheet" media="screen" href="' . $relative_root_path . 'mkht-php.css">' . LF;
}
if (file_exists(SITE . 'head.inc.html'))
echo file_get_contents(SITE . 'head.inc.html');
?>
</head>
<body>
<?php
$page_langs = $pages_langs[$path_parts_src['dirname'] . '/' . $page_names[$src]];
if (count($page_langs) > 1) {
sort($page_langs);
$lang_txt = [
'fr' => 'français',
'en' => 'english',
];
?>
<aside>
<nav>
<ul>
<?php foreach ($page_langs as $lang) { ?>
<li lang="<?= $lang ?>">
<small>
<a href="<?= $page_names[$src] ?>.<?= $lang ?>" rel="alternate" hreflang="<?= $lang ?>">
<?= $lang_txt[$lang] ?? $lang ?>
</a>
</small>
</li>
<?php } ?>
</ul>
</nav>
</aside>
<?php
}
if (file_exists(SITE . 'header.inc.php'))
eval('?>' . file_get_contents(SITE . 'header.inc.php'));
if ($config['center-index'] AND $path_parts_target['filename'] === 'index')
echo '<div class="centered">' . $content . '</div>';
else
echo '<main>' . $content . '</main>';
if (file_exists(SITE . 'end.inc.html'))
require SITE . 'end.inc.html';
echo '</body></html>';
$content = ob_get_clean();
if (extension_loaded('tidy')) {
$content = tidy_repair_string($content, [
'indent' => true,
'indent-spaces' => 4,
'output-xhtml' => true,
'wrap' => 0,
]);
$content = str_replace(' ', ' ', $content);
}
file_put_contents($base_filepath_target . '.html', $content);
// Gzip compression
exec('gzip --keep --fast --force ' . $base_filepath_target . '.html');
}
if ($page_names[$src] === 'index')
continue;
$relative_addr = substr_replace($base_filepath_src . '.html', '', strpos($base_filepath_src, SITE), strlen(SITE));
// As of RFC 3151: A URN Namespace for Public Identifiers
$public_id = 'urn:publicid:' . $config['id'] . str_replace('/', '%2F', $relative_addr);
preg_match('#\<body\>(?<content>.*)\</body\>#s', file_get_contents($base_filepath_target . '.html'), $match);
$atom_entry_content = $match['content'];
// Make relative links absolute
$atom_entry_content = preg_replace_callback('# href=\"(?<relative_url>[^:"]+)\"#', function ($matches) {
global $config;
global $path_parts_target;
return ' href="' . ($config['base-url'][0] ?? '') . substr($path_parts_target['dirname'], strlen(SITE)) . '/' . $matches['relative_url'] . '"';
}, $atom_entry_content);
ob_start();
?>
<entry>
<title><?= $title ?></title>
<id><?= $public_id ?></id>
<updated><?= date('c', $node_info->getMTime()) ?></updated>
<?php
foreach ($config['base-url'] as $base_url)
echo ' <link rel="alternate" type="text/html" href="' . $base_url . $relative_addr . '"></link>' . LF;
?>
<content type="html"><?= htmlspecialchars($atom_entry_content) ?></content>
</entry>
<?php
$atom_entry = ob_get_clean();
foreach (explode('/', $relative_addr) as $level => $unused) {
$dir = implode('/', array_slice(explode('/', $relative_addr), 0, $level)) . '/';
$last_update = $node_info->getMTime();
$dirs_entries_per_lang['all'][$dir] = ($dirs_entries_per_lang['all'][$dir] ?? '') . $atom_entry;
$dirs_entries_per_lang[$lang][$dir] = ($dirs_entries_per_lang[$lang][$dir] ?? '') . $atom_entry;
if (!isset($dirs_last_update['all'][$dir]) OR $last_update > $dirs_last_update['all'][$dir])
$dirs_last_update['all'][$dir] = $last_update;
if (!isset($dirs_last_update[$lang][$dir]) OR $last_update > $dirs_last_update[$lang][$dir])
$dirs_last_update[$lang][$dir] = $last_update;
}
}
foreach ($dirs_entries_per_lang as $lang => $dirs_entries) {
foreach ($dirs_entries as $dir => $entries) {
ob_start();
?>
<?xml version="1.0" encoding="UTF-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<title><?= ($config['title'] ?? '') . (($dir !== '/') ? ' ' . $dir : '') ?></title>
<id>urn:publicid:<?= $config['id'] . str_replace('/', '%2F', $dir) ?></id>
<?php
foreach ($config['base-url'] as $url)
echo ' <link rel="self" type="application/atom+xml" href="' . $url . $dir . 'feed.' . $lang . '.atom"></link>' . LF;
?>
<updated><?= date('c', $dirs_last_update[$lang][$dir]) ?></updated>
<author>
<name><?= $config['author'] ?? '' ?></name>
</author>
<?php
file_put_contents(SITE . 'target/' . $dir . 'feed.' . $lang . '.atom', ob_get_clean() . $entries . '</feed>' . LF);
}
}
if ($config['announce-css'])
copy(ROOT . '/style.css', SITE . 'target/mkht-php.css');