plugins.php

一款基于PHP的网络日记程序。WikyBlog支持：多用户的 BLOG

<?php

defined('WikyBlog') or die("Not an entry point...");

global $page,$pageOwner,$dbObject,$lang;
$dbObject->links['Install Plugins'] = $page->formAction = '/Admin/'.$pageOwner['username'].'/DataTypes';
$dbObject->links['PluginSQL'] = '/Admin/'.$pageOwner['username'].'/PluginSQL';
$dbObject->links['?'] = 'Install Plugins';
$page->displayTitle = 'Install Plugins';

if( $_SESSION['userlevel'] !== 4){
	$page->contentA[$page->displayTitle] = 'You must be an administrator to access this page.';
	return;
}

class adminPlugins{
	var $available = array();
	var $installed = array();
	var $pluginDir;
	
	
	function adminPlugins(){
		global $page,$rootDir,$lang;
		$this->pluginDir = $rootDir.'/plugins';
		
		includeFile('admin/CheckPrivs.php');
		if( !checkPrivs::isGranted() ){
			return;
		}
		
		ob_start();
		$this->getPlugins();
		
		switch( $page->userCmd ){
			case 'upgrade':
				$this->upgrade();
				$this->show();
			break;
			case 'install':
				$this->install();
			break;
			
			case 'confirm install';
				$this->confirmedInstall();
				$this->show();
			break;
			
			default:
				$this->show();
			break;
			
		}
		
		$page->contentA['Install Plugins'] = wb::get_clean();
	}
	
	//This should just update the current config..
	function saveConfig(){
		global $wbTables;
		
		$query = 'SELECT revision, modified, data FROM '.$wbTables['config'].' ORDER BY revision DESC LIMIT 1'; 
		$result = wbDB::runQuery($query);
		$row = mysql_fetch_assoc($result);
		$data = unserialize($row['data']);
		$revision = $row['revision'];
		
		//Update
		$serialized = serialize($data);
		if( $serialized == $row['data'] ){
			return;
		}
		
		$query = 'UPDATE '.$wbTables['config'].' SET `modified`=`modified`, `data`="'.wbDB::escape($serialized).'"';
		$query .= ' WHERE `revision` = '.$revision;
		wbDB::runQuery($query);
		$num = mysql_affected_rows();
		if( $num < 1){
			message('<b>Warning</b> This configuration was not updated.');
		}else{
			message('Your configuration has been updated.');
		}
		
	}
	
	///////////////////////////////////////////////////////////////////////////
	//
	//	Upgrade
	//
	function upgrade(){
		global $page,$dbInfo;
		
		$class = $dbInfo[$page->cmdArg[0]]['class'];
		
		$infoFile = $this->pluginDir.'/'.$class.'/dbInfo.php';
		$classFile = $this->pluginDir.'/'.$class.'/class.php';
		$sqlFile = $this->pluginDir.'/'.$class.'/installSQL.php';
		
		if( !file_exists($infoFile) ){
			return;
		}
		if( !file_exists($classFile) ){
			return;
		}
		if( !file_exists($sqlFile) ){
			return;
		}
		$files = array($infoFile,$classFile,$sqlFile);
		
		if( $this->installUpdate($page->cmdArg[0],$class,$files) ){
			message('<tt>'.$page->cmdArg[0].'</tt> was successfully upgraded.');
		}
	}
	
	///////////////////////////////////////////////////////////////////////////
	//
	//	Install
	//
	function confirmedInstall(){
		global $page;
		includeFile('admin/PluginAdd.php');
		
		$name = toStorage($_POST['as']);
		$lowerName = wbStrtolower($name);

		//
		//	Check
		//
		
			$regExp = '^[A-Za-z0-9_-]+$';
			if(!eregi($regExp,$name)){
				message('The <tt>Install as:</tt> field can only contain alphanumeric, underscore and dash characters.');
				return false;
			}
		
			if( !pluginAdd::checkName($lowerName) ){
				return;
			}
		
		//
		//	install
		//
			if( $this->installUpdate($name,$page->cmdArg[0],$this->available[$page->cmdArg[0]]) ){
				
				message('<tt>'.$page->cmdArg[0].'</tt> was installed successfully.');
				unset($this->available[$page->cmdArg[0]]);
				$this->saveConfig();
			}
	}
		
	function installUpdate($name,$which,$files){
		global $page,$wbTablePrefix,$dbObject;
		require_once('installDB.php');
		$lowerName = wbStrtolower($name);
				
		list($infoFile, $classFile, $sqlFile) = $files;
		
		//Get the data
		require_once($sqlFile);
		if( !isset($dbData) ){
			message('Invalid installSQL.php file. Consult the plugin developer for more information.');
			return false;
		}
		require_once($infoFile);
		if( !isset($installInfo) ){
			message('Invalid dbInfo.php file. Consult the plugin developer for more information.');
			return false;
		}
		$installInfo['isPlugin'] = true;
		if( pluginAdd::add($name,$dbData,$installInfo) ){
			return true;
		}
		return false;
	}
	
	
	function install(){
		global $page;
		
		$_POST += array('as'=>$page->cmdArg[0]);
		
		if( !isset($this->available[$page->cmdArg[0]]) ){
			message('Invalid data type: '.$page->cmdArg[0]);
			return;
		}
		
		echo '<table style="margin-left:auto;margin-right:auto;" cellpadding="10">';
		echo '<tr><td>';
			echo 'Installing Plugin: ';
			echo '</td><td>';
			echo $page->cmdArg[0];
			echo '</td><td class="sm">';
			echo 'The name of the plugin your are installing.';
			echo '</td></tr>';
		echo '<tr><td>';
			echo 'Install as: ';
			echo '</td><td>';
			echo '<input type="text" name="as" value="'.$_POST['as'].'" >';
			echo '</td><td class="sm">';
			echo 'A unique name for your data type that will be used for urls and page titles. (a-zA-Z only) ';
			echo '</td></tr>';
			
		echo '<tr><td>';
			echo '</td><td>';
			echo '<input type="submit" name="cmd['.$page->cmdArg[0].']" value="Confirm Install" /> ';
			echo '<input type="submit" name="cmd" value="Cancel" />';
			echo '</td></tr>';
		echo '</table>';
		
		echo '<p class="sm" style="text-align:center;">';
		echo 'You should always backup your data before installing new components.';
		echo '</p>';
			
	}
	
	///////////////////////////////////////////////////////////////////////////
	//
	//	Show
	//
	function show(){
		global $dbInfo;
		
		echo '<table style="width:100%" cellpadding="15"><tr><td width="50%">';
		$this->showUninstalled();
		echo '</td></tr>';
		
		echo '<tr><td>';
		echo '<h3 class="heading">Your Plugin Directory</h3><div class="underline"></div>';
		echo '<ul><li>';
		echo '<tt>'.$this->pluginDir.'</tt>';
		echo '</li></ul>';
		
		echo '</td></tr>';
		
		echo '<tr><td colspan="2">';
		echo '<h3 class="heading">How To Install Plugins</h3><div class="underline"></div>
				<ol>
				<li> Download plugins from <a href="http://www.wikyblog.com/Main/Plugins">WikyBlog.com</a>.</li>
				<li> Copy the appropriate files into your plugins directory.</li>
				<li> Reload this page, then click "Install" for the new plugin.</li>
				</ol>';
				
		echo '</td></tr>';
		
		echo '<tr><td colspan="2">';
		echo '<h3 class="heading">Plugin Development</h3><div class="underline"></div>';
		echo 'If you plan on creating a custom plugin, the following may be useful.';
		echo '<ul>';
		echo '<li>'.wbLinks::admin('CreatePlugin','Plugin Creator').' This script can output php code for custom plugins.</li>';
		echo '<li>'.wbLinks::admin('PluginSQL','Plugin Development').' This script will create the data needed in a plugin\'s installSQL.php file.</li>';
		echo '<li>Integrated debugging is available. Uncomment the following line in your wiki.php file.<br><pre>	define(\'wbDebug\',true);</pre></li>';
		echo '</ul>';
		
		echo '</td></tr>';
		
		echo '</td></tr></table>';
	}
	
	function showUninstalled(){
		global $lang,$dbInfo;
		
		$i = 0;
		$classes[] = ' class="tableRowOdd" ';
		$classes[] = ' class="tableRowEven" ';

					
		echo '<table class="tableRows" style="width:100%" >';
		echo '<tr><th style="white-space:nowrap" colspan="2">'.$lang['available_plugins'].'</th><th>'.$lang['options'].'</th></tr>';
		foreach($this->available as $space => $null){
			echo '<tr'.$classes[($i%2)].'>';
			echo '<td colspan="2">';
			echo $space;
			echo '</td>';
			echo '<td>';
			echo '<input type="submit" name="cmd['.$space.']" value="Install" />';
			echo '</td>';
			echo '</tr>';
			$i++;
		}
		if( $i === 0){
			echo '<tr>';
			echo '<td style="text-align:center" colspan="3">';
			echo $lang['empty'];
			echo '</td>';
			echo '</tr>';			
		}
		
		if( count($this->installed) < 1){
			echo '</table>';
			return;
		}
		$i = 0;
		echo '<tr><td>&nbsp;</td></tr>';
		echo '<tr><th style="white-space:nowrap">Installed Plugins</th><th>Installed As</th><th>'.$lang['options'].'</th></tr>';
		foreach($this->installed as $plugin => $class){
			echo '<tr'.$classes[($i%2)].'>';
			echo '<td>';
			echo $plugin;
			echo '</td>';
			echo '<td>';
			echo $class;
			echo '</td>';
			echo '<td>';
			echo '<input type="submit" name="cmd['.$class.']" value="Upgrade" />';
			echo ' '.wbLinks::admin('ManageTypes?cmd['.$class.']=Remove','Remove');
			echo '</td>';
			echo '</tr>';
			$i++;
		}
		
		echo '</table>';
		
		
		
	}
	function getPlugins(){
		global $rootDir,$dbInfo;
		
		$newInfo = array();
		
		if( !file_exists($this->pluginDir) ){
			return;
		}
		$dh = @opendir($this->pluginDir);
		if(!$dh ){
			return;
		}
		
		while(($file = readdir($dh)) !== false){
			if( strpos($file,'.') === 0){
				continue;
			}
			
			$fullPath = $this->pluginDir.'/'.$file;
			if( !is_dir($fullPath) ){
				continue;
			}
			
			$infoFile = $this->pluginDir.'/'.$file.'/dbInfo.php';
			$classFile = $this->pluginDir.'/'.$file.'/class.php';
			$sqlFile = $this->pluginDir.'/'.$file.'/installSQL.php';
			
			if( !file_exists($infoFile) ){
				if( defined('wbDebug') && wbDebug == true){
					message('dbInfo.php doesn\'t exist for plugin <tt>'.$file.'</tt>');
				}
				continue;
			}
			if( !file_exists($classFile) ){
				if( defined('wbDebug') && wbDebug == true){
					message('class.php doesn\'t exist for plugin <tt>'.$file.'</tt>');
				}
				continue;
			}
			if( !file_exists($sqlFile) ){
				if( defined('wbDebug') && wbDebug == true){
					message('installSQL.php doesn\'t exist for plugin <tt>'.$file.'</tt>');
				}
				continue;
			}
			$this->available[$file] = array($infoFile,$classFile,$sqlFile);
		}
		
		//cannot have two of the same plugin because of database table names!
		foreach($dbInfo as $space => $info){
			$class =& $info['class'];
			if( isset($info['isPlugin']) && isset($this->available[$class])){
				unset($this->available[$class]);
				$this->installed[$class] = $space;
			}
		}
	}
	
}


new adminPlugins();