BlockLog/blocklog_fonctions.php

<?php
/**
 * Fonctions utiles au plugin Block Log
 *
 * @plugin     Block Log
 * @copyright  2019
 * @author     tofulm
 * @licence    GNU/GPL
 * @package    SPIP\Blocklog\Fonctions
 */

if (!defined('_ECRIRE_INC_VERSION')) {
	return;
}

function trouver_blocklog($id_objet, $objet, $all = false){
	static $r;

	if ($r == null) {
		$from = array(
			'spip_blocklogs',
		);
		$where = array(
			'id_objet='.intval($id_objet),
			'objet='.sql_quote($objet),
		);
		$r = sql_fetsel('id_blocklog, blockchaine, chaine, requete', $from, $where);
	}

	if ($all) {
		return $r;
	}

	return $r['blockchaine'];
}

function blockchaine_sur_pdf(){
	if (!defined('_BLOCKLOG_CACHER_PDF') or (defined('_BLOCKLOG_CACHER_PDF') and _BLOCKLOG_CACHER_PDF !== true)){
		return true;
	}
	return false;
}

function afficher_blocklog($texte = '', $id_dossier = 0, $objet = '', $type = 'chaine'){
	$objet = trim($objet);

	$blockchaine = '<span class="affichage_blockchaine">';
	$img = find_in_path('img/icone_blockchaine.png');
	if ($img) {
		$img = '<img class="icone_blockchaine" src="'.$img.'" style="height:1em;width: 1em;">';
		$img .= "&nbsp;";
	}
	if (!defined('_BLOCKLOG_CACHER_PDF') or (defined('_BLOCKLOG_CACHER_PDF') and _BLOCKLOG_CACHER_PDF !== true)){
		if (intval($id_dossier) and $objet) {
			$blockchaine .= $img;
			$blockchaine .= trouver_blocklog($id_dossier, $objet, true)[$type];
			$blockchaine .= '</span>';
		}
	}
	if (empty($texte)) {
		return $blockchaine;
	}

	$texte = str_replace('@@blockchaine@@', $blockchaine, $texte);
	$texte = str_replace('@@blocklog@@', $blockchaine, $texte);

	return $texte;
}

function blocklog_verifier_blockchaine($num, $objet){
	if (intval($num) and $objet) {
		$where = array(
			'num='.intval($num),
			'objet='.sql_quote($objet),
		);
		$r = sql_fetsel('id_blocklog, blockchaine, chaine, requete', 'spip_blocklogs', $where);

		$where = array(
			'objet='.sql_quote($objet),
			'id_blocklog<'.intval($r['id_blocklog'])
		);

		$blockchaine_prec = sql_getfetsel('blockchaine', 'spip_blocklogs', $where, 'id_blocklog DESC', 1);


		$blockchaine = $blockchaine_prec . $r['chaine'];
		$blockchaine  = hash(_BLOCKLOG_ALGO, $blockchaine);

		return $blockchaine === $r['blockchaine'];
	}
}

function blocklog_verifier_chaine($num, $objet){

	if (intval($num) and $objet) {
		$where = array(
			'num='.intval($num),
			'objet='.sql_quote($objet),
		);
		$r = sql_fetsel('id_blocklog, blockchaine, chaine, requete', 'spip_blocklogs', $where);

		$chaine_bdd = $r['chaine'];
		$chaine_dynamique = blocklog_creer_chaine($r['requete']);

		return $chaine_bdd === $chaine_dynamique;
	}
}

function blocklog_creer_chaine($requete = ""){
	if ( strlen($requete) < 5 ) {
		return '';
	}

	$get_infos = charger_fonction('get_infos', 'plugins');
	$version = $get_infos('blocklog');

	$r = sql_query($requete);

	if (
		intval($version) < 2
		or defined('_BLOCKLOG_CHAINE_SIMPLE')
	) {
		$chaine = sql_fetch($r);
		if (is_array($chaine)) {
			$c = [];
			foreach ($chaine as $i => $v) {
				$c[] = $v;
			}
			$chaine = implode('|', $c);
		}
	} else {
		$chaine = sql_fetch_all($r);
		if (is_array($chaine)) {
			$chaine = serialize($chaine);
		}
	}

	$chaine  = hash(_BLOCKLOG_ALGO, $chaine);

	return $chaine;
}

function blocklog_creer_blockchaine($chaine, $objet){
	$where = array(
		'objet='.sql_quote($objet)
	);
	$blockchaine  = sql_getfetsel('blockchaine', 'spip_blocklogs', $where,'', 'id_blocklog DESC', '1');
	$blockchaine .= $chaine;
	$blockchaine  = hash(_BLOCKLOG_ALGO, $blockchaine);

	return $blockchaine;
}

//function blocklog_verifier_blockchaines($objet, $date_debut = '', $date_fin = ''){

	//if (empty($objet)) {
		//return [];
	//}

	//if (empty($date_debut)) {
		//$date_debut = date_create() -> modify('-1 year')->format('Y-m-d H:i:s');
	//} else {
		//$date_debut = date_create($date_debut)->format('Y-m-d H:i:s');
	//}
	//if (empty($date_fin)) {
		//$date_fin = date_create()->format('Y-m-d H:i:s');
	//} else {
		//$date_fin = date_create($date_fin)->format('Y-m-d 23:59:59');
	//}

	//$from = 'spip_blocklogs';
	//$where = array(
		//'objet='.sql_quote($objet),
		//'maj>='.sql_quote($date_debut),
		//'maj<='.sql_quote($date_fin),
	//);

	//$res = sql_allfetsel('*', $from, $where);

	//$retour = [];
	//if (count($res)) {
		//$blockchaine = "";
		//foreach ($res as $r) {
			//$blockchaine .= $r['chaine'];
			//$blockchaine  = hash(_BLOCKLOG_ALGO, $blockchaine);
			//if ($blockchaine === $r['blockchaine']){
				//$r['v'] = 'ok';
				//$retour[] = $r;
			//} else {
				//$r['v'] = 'error';
				//$retour[] = $r;
				//break;
			//}
		//}
	//}

	//return $retour;
//}