最新的文章由發佈者： perlish

这个是我改好的for 1.0的pluginauthimage.class.php文件，有需要的朋友可以直接拿来用了，数字1有时有点难看，我也去掉了
程式碼:
<?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/dao/model.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" );
    define( "AUTHIMAGE_BACKGROUND_FOLDER", PLOG_CLASS_PATH."plugins/authimage/backgrounds/" );
   // twu2 20061016 begin
    define( "AUTHIMAGE_FONT_FOLDER", PLOG_CLASS_PATH."plugins/authimage/fonts/" );
   // twu2 20061016 end

    /**
     * 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 pLog. The idea is inspired by <a href="http://www.gudlyf.com/index.php?p=376">WordPress AuthImage Plugin</a> written by Gudlyf.';

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

		function init()
		{
			// 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->default = $blogSettings->getValue( "plugin_authimage_default" );
		}

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

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

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

            return $templatePage;
        }

        function show() {
		$authImageUrl = $this->generateImageUrl();
        $authImage = $this->pluginTemplatePage( "authimage" );
              if ( $authImageUrl )
			  return '<img src="'.$authImageUrl.'" style="vertical-align:middle;" alt="authimage" />';
else 
			  return ' you did not have gd support';
        }

        function showImage() {
		// twu2 20061016 begin
		            $code = $this->generateCode();
		            $encrypt = $this->encrypt($code, $this->key);
		            if ( function_exists ( 'ImageGIF' ) )
		       $image_format = 'gif';
		       else
		       $image_format = 'png';
		           $tempFile = $this->cacheFolder."/".$encrypt.".".$image_format;
		       $this->captcha_createimage($code, $image_format, $tempFile);
        /*    $code = $this->generateCode();
            $encrypt = $this->encrypt($code, $this->key);
            $background = AUTHIMAGE_BACKGROUND_FOLDER.$this->default;
           $tempFile = $this->cacheFolder."/".$encrypt.".gif";

            if(function_exists ( 'imagecreatefromgif' )){
                $image = @imagecreatefromgif($background) or die("Cannot Initialize new GD image stream");
			}
			else if(function_exists ( 'imagecreatefrompng' )){
                $image = @imagecreatefrompng($background) or die("Cannot Initialize new GD image stream"); 
            } else {
			  die("Server doesn't support GIF or PNG creation. Sorry.");
            }           
            
            $textColor = imageColorAllocate($image, 0x00, 0x00, 0x00);
            ImageString($image, 5, 7, 2, $code, $textColor);

            if ( !function_exists ( 'ImageGIF' ) ) {
                ImagePNG($image, $tempFile);
            } else {
              ImageGIF($image, $tempFile);
            } */
            $temp = fopen($tempFile,"rb");
            $buffer = fread($temp,filesize($tempFile));
            fclose($temp);
  
            // Now zero-length the file. No need for its content anymore.
            $temp = fopen($tempFile,"w");
            fwrite($temp, NULL);
            fclose($temp);

            // Now chmod it so it can be deleted later by the user
            chmod($tempFile, 0666);
            
	// twu2 20061016 begin
	            //header("Content-type: image/gif");
	            header("Content-type: image/".$image_format);
	// twu2 20061016 end

	echo $buffer;
        }

        // encrypt string
        function encrypt($string, $key) {
            $plainText = $string.$key;
            $encodeText = md5($plainText);
            return $encodeText;
        }
        	
        function generateCode() {
            $code = "";
            // twu2 20061016 begin
			            //for($i=0; $i < $this->length; $i++) $code .= rand(0,9);
			       //$hash = "0123456789";
			      //$hash = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
			       $hash = "03456789ABCDEFGHKMNPQRWXYZ";
			       $len = strlen($hash) - 1;
			            for($i=0; $i < $this->length; $i++) $code .= $hash[rand(0,$len)];
			// twu2 20061016 end

			return $code;
        }        
        
        function deleteExpiredAuthImage( $expiretime ) {
            $path = PLOG_CLASS_PATH . $this->cacheFolder;
            if ( is_dir($path) ) 
            { 
                $handle=opendir($path); 
                while (false!==($file = readdir($handle))) { 
                    if ($file != "." && $file != ".." && $file != "index.htm") {  
                        $diff = time() - filectime("$path/$file");
                        if ($diff > $expiretime) unlink("$path/$file");
                    } 
                }
                closedir($handle); 
            }
        }       

		// twu2 20061016 begin
		       function captcha_createimage($code, $image_format, $tempFile)
		        {
		            $breedte = rand(256, 384);
		            $hoogte = rand(64, 96);
		            $img = imagecreatetruecolor($breedte,$hoogte);
		            $achtergrond = imagecolorallocate($img, $this->captcha_color("bg"), $this->captcha_color("bg"), $this->captcha_color("bg"));
		
	            imagefilledrectangle($img, 0, 0, $breedte-1, $hoogte-1, $achtergrond);
	           $hash = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
	           $hash_len = strlen($hash);
	            for($g = 0;$g < 30; $g++)
	            {
		               $t = $hash[rand(0, $hash_len)];
		
	                $ypos = rand(0,$hoogte);
	                $xpos = rand(0,$breedte);
		
	                $kleur = imagecolorallocate($img, $this->captcha_color("bgtekst"), $this->captcha_color("bgtekst"),
		$this->captcha_color("bgtekst"));
		
		                if (!($g % 2))
		               {
		                     $scribx = rand(0,($breedte*2));
		                     $scriby = rand(0,($hoogte*2));
		
	                     $wibblex = rand(0,($breedte*2));
	                     $wibbley = rand(0,($hoogte*2));
	
                     imageline($img, rand(0, $scribx-$xpos), rand(0, $scriby+$ypos), rand(0, $wibblex), rand(0, $wibbley), $kleur+$g);
                     imageellipse($img, rand(0, $scribx+$xpos), rand(0, $scriby-$ypos), rand(0, $scriby), rand(0, $scribx), $kleur-$g);    
	               }
	
	                imagettftext($img, $this->captcha_size(), $this->captcha_move(), $xpos, $ypos, $kleur, $this->captcha_font(), $t);
	            }
	            $stukje = $breedte / (strlen($code) + 3);
	
	            for($j = 0;$j < strlen($code); $j++)
	            {
	                $tek = $code[$j];
	                $ypos = rand(32,$hoogte-8);
	                $xpos = $stukje * ($j+2);
	
	                $kleur2 = imagecolorallocate($img, $this->captcha_color("tekst"), $this->captcha_color("tekst"),
	$this->captcha_color("tekst"));
	
                imagettftext($img, $this->captcha_size(), $this->captcha_move(), $xpos, $ypos, $kleur2, $this->captcha_font() , $tek);
		            }
		
	           if ($image_format == 'gif')
		                imagegif($img, $tempFile);
		           else
		                imagepng($img, $tempFile);
		            imagedestroy($img);
		        }
		
		        /**
		          * Some functions :)
		          * Also orginally written by mastercode.nl
		          **/
		        /**
		          * Function to create a random color
		          * @auteur mastercode.nl
		          * @param $type string Mode for the color
		          * @return int
		          **/
		        function captcha_color($type)
		        {
		            switch($type)
		            {
		                case "bg":
		                    $kleur = rand(224,255);
		                break;
		                case "tekst":
		                   $kleur = rand(0,127);
		                break;
		                case "bgtekst":
		                    $kleur = rand(200,224);
		                break;
		                default:
		                    $kleur = rand(0,255);
		                break;
		            }
		            return $kleur;
		        }
		        /**
		          * Function to ranom the size
		          * @auteur mastercode.nl
		          * @return int
		          **/
		        function captcha_size()
		        {
		            $grootte = rand(24,32);
		            return $grootte;
		        }
		        /**
		          * Function to random the posistion
		          * @auteur mastercode.nl
		          * @return int
		          **/
		        function captcha_move()
		        {
		            $draai = rand(-25,25);
		            return $draai;
		        }


				 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 to return a ttf file from fonts map
		          * @auteur mastercode.nl
		          * @return string
		          **/
		        function captcha_font()
		        {
		            $f = @opendir(AUTHIMAGE_FONT_FOLDER);
		            $ar = array();
		            while(($file = @readdir($f)) !== false)
		            {
		                if(!in_array($file,array('.','..')) && eregi('.ttf',$file))
		                {
		                    $ar[] = $file;
		                }
		            }
		            if(count($ar))
		            {
		                shuffle($ar);
		                $i = rand(0,(count($ar) - 1));
		                return AUTHIMAGE_FONT_FOLDER . $ar[$i];
		           }
		        }
		// twu2 20061016 end
		

    }
        
?>