LifeType 中文開發論壇

標題 內文 作者 日期 狀態 IP 動作 
  620q3x6qx6  wmd3koxi  0opbn93z9  11/08/2006 23:57  正常迴響  218.177.126.64      
  w59tq  n8jidwafpot8qbt94lufr884 0ur2h1zs  11/08/2006 23:33  正常迴響  85.155.132.20      
  3puggcfi  d7vsbwm88ddo1vwsyhhzh0955  im02lu6di  11/08/2006 23:32  正常迴響  85.155.132.20      
  kjgfgj  fdlskjfkldsfdjsf  hgsdghjg  11/08/2006 23:28  正常迴響  195.234.200.33   

<?php

    include_once( PLOG_CLASS_PATH."class/plugin/pluginbase.class.php" );
    include_once( PLOG_CLASS_PATH."class/plugin/pluginmanager.class.php" );
	include_once( PLOG_CLASS_PATH."class/net/rawrequestgenerator.class.php" );
    include_once( PLOG_CLASS_PATH."class/misc/glob.class.php" );
    include_once( PLOG_CLASS_PATH."plugins/authimage/class/security/authimagefilter.class.php" );	

    //define( "AUTHIMAGE_FILE", "/plugins/authimage/authimage.php" );   //去掉背景图加载文件
    //define( "AUTHIMAGE_BACKGROUND_FOLDER", PLOG_CLASS_PATH."plugins/authimage/backgrounds/" );//去掉背景图加载
    
    /**
     * Plugin that offers comment authentication image for current blog
     * Original Author: Gudlyf http://www.gudlyf.com/index.php?p=376
     * Modified by: Mark Wu
     */
    class PluginAuthImage extends PluginBase
    {
        var $pluginEnabled;
        var $default;
        var $cacheFolder;
        
        function PluginAuthImage()
        {
            $this->PluginBase();
            
            $this->id      = "authimage";
            $this->author  = "Mark Wu";
            $this->desc    = 'This plugin offers extra comment authentication for LifeType. The idea is inspired by <a href="http://www.gudlyf.com/index.php?p=376">WordPress AuthImage Plugin</a> written by Gudlyf.';
            $this->version = '1.0.1';

            $this->locales = Array( "en_UK" , "zh_TW" , "zh_CN", "es_ES", "de_DE" );
            
            $this->init();              
        }

		function init()
		{
            include_once( PLOG_CLASS_PATH."class/template/menu/menu.class.php" );

			// register the filter
			$this->registerFilter( "AuthImageFilter" );

            $this->registerAdminAction( "authimage", "PluginAuthImageConfigAction" );
			$this->registerAdminAction( "updateAuthImageConfig", "PluginAuthImageUpdateConfigAction" );
			$this->registerBlogAction( "AuthImageShow", "PluginAuthImageShowAction" );
			
			$menu =& Menu::getMenu();
			if( !$menu->entryExists( "/menu/controlCenter/manageAntiSpamPlugins" ))						
				$this->addMenuEntry( "/menu/controlCenter", "manageAntiSpamPlugins", "", "", true, false );			
            $this->addMenuEntry( "/menu/controlCenter/manageAntiSpamPlugins", "AuthImage", "?op=authimage", "" );
		}
 
		function register()
		{
            $config =& Config::getConfig();
            $this->cacheFolder = $config->getValue('temp_folder');
			$this->cacheFolder = $this->cacheFolder.'/authimage/'.$this->blogInfo->getId();
			if( !File::exists( $this->cacheFolder )) {
				File::createDir( $this->cacheFolder );
			}
		    
		    $blogSettings = $this->blogInfo->getSettings();
			$this->pluginEnabled = $blogSettings->getValue( "plugin_authimage_enabled" );
			$this->length = $blogSettings->getValue( "plugin_authimage_length" );
			$this->key = $blogSettings->getValue( "plugin_authimage_key" );
			$this->expiredTime = $blogSettings->getValue( "plugin_authimage_expiredtime" );
			if ($this->expiredTime == "") $this->expiredTime = 3600;
			$this->default = $blogSettings->getValue( "plugin_authimage_default" );
		}

	    function isEnabled()
	    {
	        return $this->pluginEnabled;
	    }

        function generateImageUrl()
        {
 			$rg = new RawRequestGenerator($this->blogInfo);
            
        	$rg->addParameter( "op", "AuthImageShow" );
            $rg->addParameter( "blogId", $this->blogInfo->getId());

            $imageUrl = $rg->getIndexUrl().$rg->getRequest();

            if ( !function_exists ('gd_info') ) {
                // We don't have gd support compiled in, lets inform the user about it
                return false;
            }

            return $imageUrl;
        }

        function show() {
            $authImageUrl = $this->generateImageUrl();
            if ( $authImageUrl )
                return '<img src="'.$authImageUrl.'" style="vertical-align:middle;" "width:70px;" "height:20px;" alt="authimage" />'; 
            else
                return 'You don\'t have GD support compiled in, we cannot create an authimage. Please activate GD Support.';
        }

        function showImage() {
            // Delete those cached authimage files that never used
            $this->deleteExpiredAuthImage($this->expiredTime);
            
            $code = $this->generateCode();
            $encrypt = $this->encrypt($code, $this->key);
            //$background = AUTHIMAGE_BACKGROUND_FOLDER.$this->default;
            $tempFile = $this->cacheFolder."/".$encrypt.".gif";


//生成图形样式设置
     $image = @imagecreate (70, 20) or die ("Cannot initialize new GD image stream!");
     $background = imagecolorallocate ($image, 232, 238, 247);  
        //random points
     for ($i = 0; $i <= 128; $i++) {
        $background = imagecolorallocate ($image, rand(0,255), rand(0,255), rand(0,255));
        imagesetpixel($image, rand(2,128), rand(2,38), $background);
     }          
     //output characters
    for ($i = 0; $i < strlen($code); $i++) {
        $textColor = imagecolorallocate ($image, rand(0,255), rand(0,128), rand(0,255));
        $x = 5 + $i * 18;  //控制生成的文字的间距,可以根据后台设置
        $y = rand(1, 4);
        imagechar ($image, 5, $x, $y,  $code{$i}, $textColor);
    }   
          
          
    //改变了生成图形的种类  
          //ouput png
    header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
    //  HTTP/1.1
    header("Cache-Control: no-store, no-cache, must-revalidate");
    header("Cache-Control: post-check=0, pre-check=0", false);
    //  HTTP/1.0
    header("Pragma: no-cache");
    //  Let it more flexible!
    if (function_exists("imagepng")) {
       header("Content-type: image/png");
       Imagepng($image, $tempFile);
       imagepng($image);
    } elseif (function_exists("imagegif")) {
       header("Content-type: image/gif");
       Imagegif($image, $tempFile);
       imagegif($image);
    } elseif (function_exists("imagejpeg")) {
       header("Content-type: image/jpeg");
       Imagejpeg($image, $tempFile);
       imagejpeg($image);
    } else {
       die("No image support in this PHP server!");
    }
    imagedestroy ($image);    
    exit;
}

        // encrypt string
        function encrypt($string, $key) {
            $plainText = $string.$key;
            $encodeText = md5($plainText);
            return $encodeText;
        }
        	
        function generateCode() {
            $code = "";
            $code .= str_replace(array('0', 'a'), array('9', 'z'), strtolower(substr(md5(rand()), 20, $this->length))); //改后的生成文字方式,使可以生成英文
           // for($i=0; $i < $this->length; $i++) $code .= rand(0,9); //只生成数字被去掉
            return $code;
        }        
        
        function deleteExpiredAuthImage( $expiretime ) {
            $path = $this->cacheFolder;
            if ( is_dir($path) ) 
            { 
                $handle=opendir($path); 
                while (false!==($file = readdir($handle))) { 
                    if ($file != "." && $file != "..") {  
                        $diff = time() - filectime("$path/$file");
                        if ($diff > $expiretime) unlink("$path/$file");
                    } 
                }
                closedir($handle); 
            }
        }           
    }
        
?>