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<?php

/***************************************************************************\
 *  SPIP, Système de publication pour l'internet                           *
 *                                                                         *
 *  Copyright © avec tendresse depuis 2001                                 *
 *  Arnaud Martin, Antoine Pitrou, Philippe Rivière, Emmanuel Saint-James  *
 *                                                                         *
 *  Ce programme est un logiciel libre distribué sous licence GNU/GPL.     *
\***************************************************************************/

if (!defined('_ECRIRE_INC_VERSION')) {
	return;
}
include_spip('inc/presentation');
include_spip('inc/config');

function formulaires_configurer_relayeur_charger_dist() {
	$valeurs = [
		'http_proxy' => no_password_proxy_url(lire_config('http_proxy', '')),
		'http_noproxy' => lire_config('http_noproxy', ''),
		'test_proxy' => 'https://www.spip.net/',
	];

	return $valeurs;
}

function formulaires_configurer_relayeur_verifier_dist() {
	$erreurs = [];
	$http_proxy = relayeur_saisie_ou_config(_request('http_proxy'), lire_config('http_proxy', ''));
	$http_noproxy = _request('http_noproxy');

	if ($http_proxy and !tester_url_absolue($http_proxy)) {
		$erreurs['http_proxy'] = _T('info_url_proxy_pas_conforme');
	}

	if (!isset($erreurs['http_proxy']) and _request('tester_proxy')) {
		if (!$http_proxy) {
			$erreurs['http_proxy'] = _T('info_obligatoire');
		} else {
			include_spip('inc/distant');
			$test_proxy = _request('test_proxy');
			$t = parse_url($test_proxy);
			if (!@$t['host']) {
				$erreurs['test_proxy'] = _T('info_adresse_non_indiquee');
			} else {
				include_spip('inc/texte'); // pour aide, couper, lang
				$info = '';
				if (!need_proxy($t['host'], $http_proxy, $http_noproxy)) {
					$info = '<strong>' . _T('page_pas_proxy') . '</strong><br />';
				}

				// il faut fausser le proxy actuel pour faire le test !
				$cur_http_proxy = $GLOBALS['meta']['http_proxy'];
				$cur_http_noproxy = $GLOBALS['meta']['http_noproxy'];
				$GLOBALS['meta']['http_proxy'] = $http_proxy;
				$GLOBALS['meta']['http_noproxy'] = $http_noproxy;
				$page = recuperer_url($test_proxy, ['transcoder' => true]);
				$page = $page['page'] ?? '';
				$GLOBALS['meta']['http_proxy'] = $cur_http_proxy;
				$GLOBALS['meta']['http_noproxy'] = $cur_http_noproxy;
				if ($page) {
					$erreurs['message_ok'] = _T('info_proxy_ok') . "<br />$info\n<tt>" . couper(entites_html($page), 300) . '</tt>';
					$erreurs['message_erreur'] = '';
				} else {
					$erreurs['message_erreur'] = $info . _T(
						'info_impossible_lire_page',
						['test_proxy' => "<tt>$test_proxy</tt>"]
					)
						. ' <b><tt>' . no_password_proxy_url($http_proxy) . '</tt></b>.'
						. aider('confhttpproxy');
				}
			}
		}
	}

	return $erreurs;
}

function formulaires_configurer_relayeur_traiter_dist() {
	$res = ['editable' => true];

	$http_proxy = relayeur_saisie_ou_config(_request('http_proxy'), lire_config('http_proxy', ''));
	$http_noproxy = _request('http_noproxy');
	if ($http_proxy !== null) {
		ecrire_meta('http_proxy', $http_proxy);
	}

	if ($http_noproxy !== null) {
		ecrire_meta('http_noproxy', $http_noproxy);
	}

	$res['message_ok'] = _T('config_info_enregistree');

	return $res;
}

function relayeur_saisie_ou_config($http_proxy, $default) {
	// http_proxy : ne pas prendre en compte la modif si le password est '****'
	if (preg_match(',:\*\*\*\*@,', $http_proxy)) {
		$http_proxy = $default;
	}

	return $http_proxy;
}

// Function glue_url : le pendant de parse_url
function glue_url($url) {
	if (!is_array($url)) {
		return false;
	}
	// scheme
	$uri = (!empty($url['scheme'])) ? $url['scheme'] . '://' : '';
	// user & pass
	if (!empty($url['user'])) {
		$uri .= $url['user'] . ':' . $url['pass'] . '@';
	}
	// host
	$uri .= $url['host'];
	// port
	$port = (!empty($url['port'])) ? ':' . $url['port'] : '';
	$uri .= $port;
	// path
	$uri .= $url['path'];
// fragment or query
	if (isset($url['fragment'])) {
		$uri .= '#' . $url['fragment'];
	} elseif (isset($url['query'])) {
		$uri .= '?' . $url['query'];
	}

	return $uri;
}


// Ne pas afficher la partie 'password' du proxy
function no_password_proxy_url($http_proxy) {
	if (
		$http_proxy
		and $p = @parse_url($http_proxy)
		and isset($p['pass'])
		and $p['pass']
	) {
		$p['pass'] = '****';
		$http_proxy = glue_url($p);
	}

	return $http_proxy;
}