/usr/share/php/data/HTTP_Request2/generate-list.php is in php-http-request2 2.3.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* Helper file for downloading Public Suffix List and converting it to PHP array
*
* You can run this script to update PSL to the current version instead of
* waiting for a new release of HTTP_Request2.
*
* NB: peer validation is DISABLED when downloading. If you want to enable it,
* change ssl_verify_peer to true and provide CA file (see below)
*/
/** URL to download Public Suffix List from */
define('LIST_URL', 'https://publicsuffix.org/list/public_suffix_list.dat');
/** Name of PHP file to write */
define('OUTPUT_FILE', dirname(__FILE__) . '/public-suffix-list.php');
require_once 'HTTP/Request2.php';
function buildSubdomain(&$node, $tldParts)
{
$part = trim(array_pop($tldParts));
if (!array_key_exists($part, $node)) {
$node[$part] = array();
}
if (0 < count($tldParts)) {
buildSubdomain($node[$part], $tldParts);
}
}
function writeNode($fp, $valueTree, $key = null, $indent = 0)
{
if (is_null($key)) {
fwrite($fp, "return ");
} else {
fwrite($fp, str_repeat(' ', $indent) . "'$key' => ");
}
if (0 == ($count = count($valueTree))) {
fwrite($fp, 'true');
} else {
fwrite($fp, "array(\n");
for ($keys = array_keys($valueTree), $i = 0; $i < $count; $i++) {
writeNode($fp, $valueTree[$keys[$i]], $keys[$i], $indent + 1);
if ($i + 1 != $count) {
fwrite($fp, ",\n");
} else {
fwrite($fp, "\n");
}
}
fwrite($fp, str_repeat(' ', $indent) . ")");
}
}
try {
$request = new HTTP_Request2(LIST_URL, HTTP_Request2::METHOD_GET, array(
// Provide path to your CA file and change 'ssl_verify_peer' to true to enable peer validation
// 'ssl_cafile' => '... path to your Certificate Authority file ...',
'ssl_verify_peer' => false
));
$response = $request->send();
if (200 != $response->getStatus()) {
throw new Exception("List download URL returned status: " .
$response->getStatus() . ' ' . $response->getReasonPhrase());
}
$list = $response->getBody();
if (false === strpos($list, '// ===BEGIN ICANN DOMAINS===')) {
throw new Exception("List download URL does not contain expected phrase");
}
if (!($fp = @fopen(OUTPUT_FILE, 'wt'))) {
throw new Exception("Unable to open " . OUTPUT_FILE);
}
} catch (Exception $e) {
die($e->getMessage());
}
$tldTree = array();
$license = true;
fwrite($fp, "<?php\n");
foreach (array_filter(array_map('trim', explode("\n", $list))) as $line) {
if ('//' != substr($line, 0, 2)) {
buildSubdomain($tldTree, explode('.', $line));
} elseif ($license) {
if (0 === strpos($line, "// ===BEGIN ICANN DOMAINS===")) {
fwrite($fp, "\n");
$license = false;
} else {
fwrite($fp, $line . "\n");
}
}
}
writeNode($fp, $tldTree);
fwrite($fp, ";\n?>");
fclose($fp);
?>
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