history1.php

一款基于PHP的网络日记程序。WikyBlog支持：多用户的 BLOG

}//end function


//
//					SINGLE REVISIONS
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
//					COMPARISON
//

function compareRevisions(){
	global $page,$dbObject;
	
	if( isset($_GET['revNum1']) ){
		$revNum1 = $_GET['revNum1'];
		$revNum2 = $page->cmdArg[0];
	}else{
		$revNum1 = $_GET['rev1'];
		$revNum2 = $_GET['rev2'];
	}
	
	////////	1)	Make sure times are set
		if( empty($revNum1) || empty($revNum2) ){
			message('SELECT_TWO_VERSIONS');
			return;
		}elseif( $revNum1 == $revNum2){
			message('SELECT_TWO_VERSIONS');
			return;
		}
	
	
	////////	2)	Find Min and Max times => get their events
		if( (wbStrtolower($revNum1) == 'current') ){
			$max = $revNum1;
			$min = $revNum2;
		}else{
			$max = max($revNum1,$revNum2);
			$min = min($revNum1,$revNum2);
		}
		
		getRevision($max);
		$newObject = php4_clone($dbObject);
		
		if( !$newObject){
			return false;
		}
		
		getRevision($min);
		if( !$dbObject){
			return false;
		}
	
	////////	Do Comparison
		compareTwo($dbObject,$newObject);
}

function compareTwo(&$oldObject,&$newObject,$title='',$oldHeader=false,$newHeader=false){
	global $page,$dbObject,$lang;
	$page->css2 = true;
	includeFile('tool/DifferenceEngine.php');
	ob_start();
	
	if( empty($title) ){
		$title = toDisplay($dbObject->title).' ('.$oldObject->revision.$lang['vs'].$newObject->revision.')';
		$page->displayTitle = $title;
	}
	
	if( $oldObject->distanceToCurrent === 1){
		$title = $lang['diff'];
		$dbObject->links[$title] = '/Edit'.$dbObject->uniqLink.'?cmd=difference';	//for compatibility with changelog links
	}elseif($oldObject->distanceToCurrent == 0){
		//case when comparing current changes
	}else{
		$dbObject->links[$title] = '/Edit'.$dbObject->uniqLink.'?cmd=compare&rev1='.$oldObject->revision.'&rev2='.$newObject->revision;
	}
	
	
	//Top of Differences
	//
	//
	echo '<table cellspacing="3" cellpadding="1" border="0" width="98%">';
	echo '<tr><td></td><td style="text-align:center;width:50%">';
	$isOwner = isOwner();
	
		//	Old Header
		//
		$editLink = false;
		if( $oldHeader ){
			echo $oldHeader;
		}else{
			if( $oldObject->revision == 'current'){
				echo '<h4 class="heading">'.wbLinks::local($dbObject->uniqLink,$lang['current_revision']).'</h4>';
			}else{	
				echo '<h4 class="heading">';
				$temp = wbLang::text('revision_num_as_of',$oldObject->revision,dbFromDate($oldObject->modified,3));
				echo wbLinks::local('/Edit'.$dbObject->uniqLink.'?cmd=show&revNum='.$oldObject->revision,$temp);
				echo '</h4>';
				
				if( $isOwner ){
					$editLink = wbLinks::local('/Edit'.$dbObject->uniqLink.'?cmd=editRevision&revNum='.$oldObject->revision,$lang['edit_revision']);
				}
			}
			
			if( !empty($oldObject->username) ){
				echo wbLinks::local('/'.$oldObject->username.'/Home',$oldObject->username);
				$user = $oldObject->username;
			}else{
				echo $oldObject->ip;
				$user = $oldObject->username;
			}
			if( isset($_SESSION['username']) && ($_SESSION['username'] != $oldObject->username) ){
				echo ' <span class="sm">('.wbLinks::special('Permissions?guest='.$user,'user permissions','title="'.$lang['SET_USER_PERMISSIONS'].$user.'"',$_SESSION['username']).')</span> ';
			}
			echo '<br/>&nbsp;'.$oldObject->summary;
			
			if( $editLink ){
				echo '<br/><span class="sm">'.$editLink.'</span>';
			}
			
			if( $oldObject->revision > 1){
				echo '<br/><span class="sm">'.wbLinks::local('/Edit'.$dbObject->uniqLink.'?cmd=compare&rev1='.($oldObject->revision-1).'&rev2='.$oldObject->revision,$lang['compare_with_prev']).' </span>';
			}elseif($oldObject->revision == 'current'){
				echo '<br/><span class="sm">'.wbLinks::local('/Edit'.$dbObject->uniqLink.'?cmd=difference',$lang['compare_with_prev']).' </span>';
			}
		}
		
		
	echo '</td><td></td>';
	echo '<td style="text-align:center;width:50%">';
	
		//	New Header
		//
		$editLink = false;
		if( $newHeader ){
			echo $newHeader;
			
		}else{
	
			if( $newObject->revision == 'current'){
				echo '<h4 class="heading">'.wbLinks::local($dbObject->uniqLink,$lang['current_revision']).'</h4>';
			}else{	
				echo '<h4 class="heading">';
				$temp = wbLang::text('revision_num_as_of',$newObject->revision,dbFromDate($newObject->modified,3));
				echo wbLinks::local('/Edit'.$dbObject->uniqLink.'?cmd=show&revNum='.$newObject->revision,$temp);
				echo '</h4>';
				
				if( $isOwner ){
					$editLink = wbLinks::local('/Edit'.$dbObject->uniqLink.'?cmd=editRevision&revNum='.$newObject->revision,$lang['edit_revision']);
				}
			}
			
			
			if( !empty($newObject->username) ){
				echo wbLinks::local('/'.$newObject->username.'/Home',$newObject->username);
				$user = $newObject->username;
			}else{
				echo $newObject->ip;
				$user = $newObject->ip;
			}
			if( isset($_SESSION['username']) && ($_SESSION['username'] != $newObject->username) ){
				echo ' <span class="sm">('.wbLinks::special('Permissions?guest='.$user,'user permissions','title="'.$lang['SET_USER_PERMISSIONS'].$user.'"',$_SESSION['username']).')</span> ';
			}
			
			echo '<br/>&nbsp;'.$newObject->summary;
			
			if( $editLink ){
				echo '<br/><span class="sm">'.$editLink.'</span>';
			}
		
			
			if( $newObject->distanceToCurrent > 0){
				if( $newObject->distanceToCurrent === 1){
					echo '<br/><span class="sm">'.wbLinks::local('/Edit'.$newObject->uniqLink.'?cmd=difference',$lang['compare_with_next']).' </span>';	
				}else{
					echo '<br/><span class="sm">'.wbLinks::local('/Edit'.$newObject->uniqLink.'?cmd=compare&rev1='.$newObject->revision.'&rev2='.($newObject->revision+1),$lang['compare_with_next']).' </span>';
				}
			}
		}
	echo '</td></tr>';
	
	
	//	New Difference
	//
	//
	
	global $diffClasses;
	$diffClasses['context'] = 'historyNeut';
	$diffClasses['deletedline'] = 'historyDelete';
	$diffClasses['addedline'] = 'historyAdd';
	$diffClasses['diffchange'] = 'historyChange';	
	$formatter = new TableDiffFormatter();

		
	$i= 0;
	foreach($oldObject->userValues as $key => $nothing){
		
		//	We don't want to show difference when comparing NULL with '' (empty string)
		//	NULL != '' also works
		//
		// if( getType($oldObject->$key) == 'NULL'){
		// 	$oldObject->$key = '';
		// }
		// if( getType($newObject->$key) == 'NULL'){
		// 	$newObject->$key = '';
		// }
		
		if( $oldObject->$key == $newObject->$key){
			continue;
		}
		$i++;
		echo '<tr><td colspan="4">';
		echo '<h3 class="heading">';
		if( isset($lang[$key]) ){
			echo $lang[$key];
		}else{
			echo $key;
		}
		echo '</h3><div class="underline"></div>';
		
		echo '</td></tr>';
		
		$oldArray = stringToArray($oldObject->$key);
		$newArray = stringToArray($newObject->$key);
		$diffs = new Diff( $oldArray,$newArray );
		echo $formatter->format( $diffs );
	}
	if( $i === 0){
		echo '<tr><td colspan="4" style="text-align:center">'.$lang['NO_DIFFERENCES'].'</td></tr>';
	}
	echo '</table>';
	
	
	$page->contentA[$title] = wb::get_clean();
}


function getLastDifference(){
	global $page, $dbObject,$lang;
	
	$current = php4_clone($dbObject);
	
	if( !getLastRevision() ){
		message('NO_REVISIONS');
		return false;
	}
	
	//compareTwo($dbObject,$current,toDisplay($dbObject->title).' (Diff)');
	compareTwo($dbObject,$current,$lang['diff']);
}


function showLines($array){
	
	$text = '<table border="0" cellpadding="7" ><tr><td><b>'.$lang['lines'].'</b></td><td><b>'.$lang['text'].'</b></td>';
	
	$odd = null;
	foreach($array as $key => $value){
		$text .= "\n";
		
		if( isset($odd) ){
			unset($odd);
		}else{
			$odd = ' class="row2" ';
		}
		$text .= "<tr $odd><td>";
		$text .= $key;
		$text .= '</td><td>';
		$text .= htmlspecialchars($value);
		$text .= '</td></tr>';
	}
	$text .= '</table>';
	return $text;	
}

//this needs toolEditPage if it's not an xmlHttp request
function showChanges(){
	global $dbObject,$lang;
	
	$current = php4_clone($dbObject);
	
	$dbObject->setFromPost();
	compareTwo($current,$dbObject,$lang['changes'],false,$lang['your_text'] );
	
	if( !isset($_GET['wb']) ){
		includeFile('tool/EditPage.php');
	}
	
}

//
//					COMPARISON
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
//					FLOW CONTROL
//


global $lang;

switch( $page->userCmd ){
	
	case 'changes':
	case wbStrtolower($lang['changes']):
		showChanges();
	break;
	
	case 'compare':
	case wbStrtolower($lang['compare']);
	case 'compare versions':
		compareRevisions();
	break;
	
	case 'editrevision':
		editRevision();
	break;
	
	case 'show':
	case 'revision':
		showRevision();
	break;
	
	case 'difference':
		getLastDifference();
	break;
}