Add the status of record into blockedlog export

htdocs/blockedlog/admin/blockedlog.php

@@ -1,5 +1,6 @@
 <?php
 /* Copyright (C) 2017      ATM Consulting      <contact@atm-consulting.fr>
+ * Copyright (C) 2017-2018 Laurent Destailleur <eldy@destailleur.fr>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

htdocs/blockedlog/admin/blockedlog_list.php

@@ -1,5 +1,6 @@
 <?php
 /* Copyright (C) 2017      ATM Consulting      <contact@atm-consulting.fr>
+ * Copyright (C) 2017-2018 Laurent Destailleur <eldy@destailleur.fr>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -103,9 +104,9 @@ else if($action === 'downloadcsv') {
 	$sql = "SELECT rowid,date_creation,tms,user_fullname,action,amounts,element,fk_object,date_object,ref_object,signature,fk_user,object_data";
 	$sql.= " FROM ".MAIN_DB_PREFIX."blockedlog";
 	$sql.= " WHERE entity = ".$conf->entity;
-	$sql.= " ORDER BY rowid ASC";
+	$sql.= " ORDER BY rowid ASC";					// Required so later we can use the parameter $previoushash of checkSignature()
-	$res = $db->query($sql);
 
+	$res = $db->query($sql);
 	if($res) {
 
 		$signature = $block_static->getSignature();
@@ -124,10 +125,43 @@ else if($action === 'downloadcsv') {
 			.';'.$langs->transnoentities('Date')
 			.';'.$langs->transnoentities('Ref')
 			.';'.$langs->transnoentities('Fingerprint')
+			.';'.$langs->transnoentities('Status')
 			.';'.$langs->transnoentities('FullData')
 			."\n";
 
-		while($obj = $db->fetch_object($res)) {
+		$previoushash = '';
+		$loweridinerror = 0;
+
+		while ($obj = $db->fetch_object($res))
+		{
+			// We set here all data used into signature calculation (see checkSignature method) and more
+			// IMPORTANT: We must have here, the same rule for transformation of data than into the fetch method (db->jdate for date, ...)
+			$block_static->id = $obj->rowid;
+			$block_static->date_creation = $db->jdate($obj->date_creation);
+			$block_static->date_modification = $db->jdate($obj->tms);
+			$block_static->action = $obj->action;
+			$block_static->fk_object = $obj->fk_object;
+			$block_static->element = $obj->element;
+			$block_static->amounts = (double) $obj->amounts;
+			$block_static->ref_object = $obj->ref_object;
+			$block_static->date_object = $db->jdate($obj->date_object);
+			$block_static->user_fullname = $obj->user_fullname;
+			$block_static->fk_user = $obj->fk_user;
+			$block_static->signature = $obj->signature;
+			$block_static->object_data = unserialize($obj->object_data);
+
+			$checksignature = $block_static->checkSignature($previoushash);	// If $previoushash is not defined, checkSignature will search it
+
+			if ($checksignature)
+			{
+				if ($loweridinerror > 0) $statusofrecord = 'ValidButFoundAPreviousKO';
+				else $statusofrecord = 'Valid';
+			}
+			else
+			{
+				$statusofrecord = 'KO';
+				$loweridinerror = $obj->rowid;
+			}
 
 			print $obj->rowid
 				.';'.$obj->date_creation
@@ -139,16 +173,20 @@ else if($action === 'downloadcsv') {
 				.';'.$obj->date_object
 				.';"'.$obj->ref_object.'"'
 				.';'.$obj->signature
+				.';'.$statusofrecord
 				.';"'.str_replace('"','""',$obj->object_data).'"'
 				."\n";
+
+			// Set new previous hash for next fetch
+			$previoushash = $obj->signature;
 		}
 
 		exit;
 	}
-	else{
+	else
+	{
 		setEventMessage($db->lasterror, 'errors');
 	}
-
 }
 
 
@@ -286,17 +324,28 @@ print getTitleFieldOfList($langs->trans('Fingerprint'), 0, $_SERVER["PHP_SELF"],
 print getTitleFieldOfList('<span id="blockchainstatus"></span>', 0, $_SERVER["PHP_SELF"],'','',$param,'align="center"',$sortfield,$sortorder,'')."\n";
 print '</tr>';
 
-$loweridinerror=0;
+if (! empty($conf->global->BLOCKEDLOG_SCAN_ALL_FOR_LOWERIDINERROR))
-$checkresult=array();
+{
-foreach($blocks as &$block) {
+	// This is version that is faster memory but require more memory and report errors that are outside the filter range
-	$checksignature = $block->checkSignature();
+
+	// TODO Make a full scan of table in reverse order of id of $block, so we can use the parameter $previoushash into checkSignature to save requests
+	// to find the $loweridinerror.
+
+}
+else
+{
+	// This is version that optimize memory (but will not report error that are outside the filter range)
+	$loweridinerror=0;
+	$checkresult=array();
+	foreach($blocks as &$block) {
+		$checksignature = $block->checkSignature();	// Note: this make a sql request at each call, we can't avoid this as the sorting order is various
 		$checkresult[$block->id]=$checksignature;	// false if error
 		if (! $checksignature)
 		{
 			if (empty($loweridinerror)) $loweridinerror=$block->id;
 			else $loweridinerror = min($loweridinerror, $block->id);
 		}
-
+	}
 }
 
 foreach($blocks as &$block) {

htdocs/blockedlog/class/blockedlog.class.php

@@ -82,6 +82,9 @@ class BlockedLog
 	 */
 	public $fk_user = 0;
 
+	public $date_creation;
+	public $date_modification;
+
 	public $date_object = 0;
 
 	public $ref_object = '';
@@ -607,7 +610,7 @@ class BlockedLog
 
 		$this->db->begin();
 
-		$previoushash = $this->getPreviousHash(1);	// This get last record and lock database until insert is done
+		$previoushash = $this->getPreviousHash(1, 0);	// This get last record and lock database until insert is done
 
 		$keyforsignature = $this->buildKeyForSignature();
 
@@ -678,19 +681,20 @@ class BlockedLog
 	}
 
 	/**
-	 *	Check if current signature still correct compare to the chain
+	 *	Check if current signature still correct compared to the value in chain
 	 *
+	 *	@param	string		$previoushash		If previous signature hash is known, we can provide it to avoid to make a search of it in database.
 	 *	@return	boolean							True if OK, False if KO
 	 */
-	public function checkSignature()
+	public function checkSignature($previoushash='')
+	{
+		if (empty($previoushash))
 		{
-
-		//$oldblockedlog = new BlockedLog($this->db);
-		//$previousrecord = $oldblockedlog->fetch($this->id - 1);
 			$previoushash = $this->getPreviousHash(0, $this->id);
-
+		}
 		// Recalculate hash
 		$keyforsignature = $this->buildKeyForSignature();
+
 		$signature_line = dol_hash($keyforsignature, '5');		// Not really usefull
 		$signature = dol_hash($previoushash . $keyforsignature, '5');
 		//var_dump($previoushash); var_dump($keyforsignature); var_dump($signature_line); var_dump($signature);
@@ -720,10 +724,10 @@ class BlockedLog
 	 *	Get previous signature/hash in chain
 	 *
 	 *	@param int	$withlock		1=With a lock
-	 *	@param int	$beforeid		Before id
+	 *	@param int	$beforeid		ID of a record
-	 *  @return	string				Hash of last record
+	 *  @return	string				Hash of previous record (if beforeid is defined) or hash of last record (if beforeid is 0)
 	 */
-	 private function getPreviousHash($withlock=0, $beforeid=0)
+	 public function getPreviousHash($withlock=0, $beforeid=0)
 	 {
 		global $conf;