Ürün Talep Formu
a productional environment, you might drop me a note, so I can add a link to the page.
*
**/
/**
* License: GNU GPL (http://www.opensource.org/licenses/gpl-license.html)
*
* 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 the Free Software Foundation; either version 2 of the License,
* or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with this program;
* if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
**/
/**
* Tabsize: 4
*
**/
require_once(dirname(__file__).'/hn_captcha.class.php');
/**
* This class is an extension for hn_captcha-class. It adds a garbage-collector!
*
* Normally all used images will be deleted automatically. But everytime a user
* doesn't finish a request one image stays as garbage in tempfolder.
* With this extension you can collect & trash this.
*
* You can specify:
* - when the garbage-collector should run, (default = after 100 calls)
* - the maxlifetime for images, (default is 600, = 10 minutes)
* - a filename-prefix for the captcha-images (default = 'hn_captcha_')
* - absolute filename for a textfile which stores the current counter-value
* (default is $tempfolder.'hn_captcha_counter.txt')
*
* The classextension needs the filename-prefix to identify lost images
* also if the tempfolder is shared with other scripts.
*
* If an error occures (with counting or trash-file-deleting), the class sets
* the variable $classhandle->garbage_collector_error to TRUE.
* You can check this in your scripts and if is TRUE, you might execute
* an email-notification or something else.
*
*
* @shortdesc Class that adds a garbage-collector to the class hn_captcha
* @public
* @author Horst Nogajski, (mail: horst@nogajski.de)
* @version 1.0
* @date 2004-April-19
*
**/
class hn_captcha_X1 extends hn_captcha
{
////////////////////////////////
//
// PUBLIC PARAMS
//
/**
* @shortdesc You optionally can specify an absolute filename for the counter. If is not specified, the class use the tempfolder and the default_basename.
* @public
* @type string
*
**/
var $counter_filename = '';
/**
* @shortdesc This is used as prefix for the picture filenames, so we can identify them also if we share the tempfolder with other programs.
* @public
* @type string
*
**/
var $prefix = 'hn_captcha_';
/**
* @shortdesc The garbage-collector will started once when the class was called that number times.
* @public
* @type integer
*
**/
var $collect_garbage_after = 100;
/**
* @shortdesc Only trash files which are older than this number of seconds.
* @public
* @type integer
*
**/
var $maxlifetime = 600;
/**
* @shortdesc This becomes TRUE if the counter doesn't work or if trashfiles couldn't be deleted.
* @public
* @type boolean
*
**/
var $garbage_collector_error = FALSE;
////////////////////////////////
//
// PRIVATE PARAMS
//
/** @private **/
var $counter_fn_default_basename = 'hn_captcha_counter.txt';
////////////////////////////////
//
// CONSTRUCTOR
//
/**
* @shortdesc This calls the constructor of main-class for extracting the config array and generating all needed params. Additionally it control the garbage-collector.
* @public
* @type void
* @return nothing
*
**/
function hn_captcha_X1($config,$secure=TRUE)
{
// Call Constructor of main-class
$this->hn_captcha($config,$secure);
// specify counter-filename
if($this->counter_filename == '') $this->counter_filename = $this->tempfolder.$this->counter_fn_default_basename;
if($this->debug) echo "\n
-Captcha-Debug: The counterfilename is (".$this->counter_filename.")"; // retrieve last counter-value $test = $this->txt_counter($this->counter_filename); // set and retrieve current counter-value $counter = $this->txt_counter($this->counter_filename,TRUE); // check if counter works correct if(($counter !== FALSE) && ($counter - $test == 1)) { // Counter works perfect, =:) if($this->debug) echo "\n
-Captcha-Debug: Current counter-value is ($counter). Garbage-collector should start at (".$this->collect_garbage_after.")"; // check if garbage-collector should run if($counter >= $this->collect_garbage_after) { // Reset counter if($this->debug) echo "\n
-Captcha-Debug: Reset the counter-value. (0)"; $this->txt_counter($this->counter_filename,TRUE,0); // start garbage-collector $this->garbage_collector_error = $this->collect_garbage() ? FALSE : TRUE; if($this->debug && $this->garbage_collector_error) echo "\n
-Captcha-Debug: ERROR! SOME TRASHFILES COULD NOT BE DELETED! (Set the garbage_collector_error to TRUE)"; } } else { // Counter-ERROR! if($this->debug) echo "\n
-Captcha-Debug: ERROR! NO COUNTER-VALUE AVAILABLE! (Set the garbage_collector_error to TRUE)"; $this->garbage_collector_error = TRUE; } } //////////////////////////////// // // PRIVATE METHODS // /** * @shortdesc Store/Retrieve a counter-value in/from a textfile. Optionally count it up or store a (as third param) specified value. * @private * @type integer * @return counter-value * **/ function txt_counter($filename,$add=FALSE,$fixvalue=FALSE) { if(is_file($filename) ? TRUE : touch($filename)) { if(is_readable($filename) && is_writable($filename)) { $fp = @fopen($filename, "r"); if($fp) { $counter = (int)trim(fgets($fp)); fclose($fp); if($add) { if($fixvalue !== FALSE) { $counter = (int)$fixvalue; } else { $counter++; } $fp = @fopen($filename, "w"); if($fp) { fputs($fp,$counter); fclose($fp); return $counter; } else return FALSE; } else { return $counter; } } else return FALSE; } else return FALSE; } else return FALSE; } /** * @shortdesc Scanns the tempfolder for jpeg-files with nameprefix used by the class and trash them if they are older than maxlifetime. * @private * **/ function collect_garbage() { $OK = FALSE; $captchas = 0; $trashed = 0; if($handle = @opendir($this->tempfolder)) { $OK = TRUE; while(false !== ($file = readdir($handle))) { if(!is_file($this->tempfolder.$file)) continue; // check for name-prefix, extension and filetime if(substr($file,0,strlen($this->prefix)) == $this->prefix) { if(strrchr($file, ".") == ".jpg") { $captchas++; if((time() - filemtime($this->tempfolder.$file)) >= $this->maxlifetime) { $trashed++; $res = @unlink($this->tempfolder.$file); if(!$res) $OK = FALSE; } } } } closedir($handle); } if($this->debug) echo "\n
-Captcha-Debug: There are ($captchas) captcha-images in tempfolder, where ($trashed) are seems to be lost."; return $OK; } /** @private **/ function get_filename($public="") { if($public=="") $public = $this->public_key; return $this->tempfolder.$this->prefix.$public.".jpg"; } /** @private **/ function get_filename_url($public="") { if($public=="") $public = $this->public_key; return str_replace($_SERVER['DOCUMENT_ROOT'],'',$this->tempfolder).$this->prefix.$public.".jpg"; } } // END CLASS hn_CAPTCHA_X1 ?>Truetype-Directory is not readable!
-Captcha-Debug: The counterfilename is (".$this->counter_filename.")"; // retrieve last counter-value $test = $this->txt_counter($this->counter_filename); // set and retrieve current counter-value $counter = $this->txt_counter($this->counter_filename,TRUE); // check if counter works correct if(($counter !== FALSE) && ($counter - $test == 1)) { // Counter works perfect, =:) if($this->debug) echo "\n
-Captcha-Debug: Current counter-value is ($counter). Garbage-collector should start at (".$this->collect_garbage_after.")"; // check if garbage-collector should run if($counter >= $this->collect_garbage_after) { // Reset counter if($this->debug) echo "\n
-Captcha-Debug: Reset the counter-value. (0)"; $this->txt_counter($this->counter_filename,TRUE,0); // start garbage-collector $this->garbage_collector_error = $this->collect_garbage() ? FALSE : TRUE; if($this->debug && $this->garbage_collector_error) echo "\n
-Captcha-Debug: ERROR! SOME TRASHFILES COULD NOT BE DELETED! (Set the garbage_collector_error to TRUE)"; } } else { // Counter-ERROR! if($this->debug) echo "\n
-Captcha-Debug: ERROR! NO COUNTER-VALUE AVAILABLE! (Set the garbage_collector_error to TRUE)"; $this->garbage_collector_error = TRUE; } } //////////////////////////////// // // PRIVATE METHODS // /** * @shortdesc Store/Retrieve a counter-value in/from a textfile. Optionally count it up or store a (as third param) specified value. * @private * @type integer * @return counter-value * **/ function txt_counter($filename,$add=FALSE,$fixvalue=FALSE) { if(is_file($filename) ? TRUE : touch($filename)) { if(is_readable($filename) && is_writable($filename)) { $fp = @fopen($filename, "r"); if($fp) { $counter = (int)trim(fgets($fp)); fclose($fp); if($add) { if($fixvalue !== FALSE) { $counter = (int)$fixvalue; } else { $counter++; } $fp = @fopen($filename, "w"); if($fp) { fputs($fp,$counter); fclose($fp); return $counter; } else return FALSE; } else { return $counter; } } else return FALSE; } else return FALSE; } else return FALSE; } /** * @shortdesc Scanns the tempfolder for jpeg-files with nameprefix used by the class and trash them if they are older than maxlifetime. * @private * **/ function collect_garbage() { $OK = FALSE; $captchas = 0; $trashed = 0; if($handle = @opendir($this->tempfolder)) { $OK = TRUE; while(false !== ($file = readdir($handle))) { if(!is_file($this->tempfolder.$file)) continue; // check for name-prefix, extension and filetime if(substr($file,0,strlen($this->prefix)) == $this->prefix) { if(strrchr($file, ".") == ".jpg") { $captchas++; if((time() - filemtime($this->tempfolder.$file)) >= $this->maxlifetime) { $trashed++; $res = @unlink($this->tempfolder.$file); if(!$res) $OK = FALSE; } } } } closedir($handle); } if($this->debug) echo "\n
-Captcha-Debug: There are ($captchas) captcha-images in tempfolder, where ($trashed) are seems to be lost."; return $OK; } /** @private **/ function get_filename($public="") { if($public=="") $public = $this->public_key; return $this->tempfolder.$this->prefix.$public.".jpg"; } /** @private **/ function get_filename_url($public="") { if($public=="") $public = $this->public_key; return str_replace($_SERVER['DOCUMENT_ROOT'],'',$this->tempfolder).$this->prefix.$public.".jpg"; } } // END CLASS hn_CAPTCHA_X1 ?>Truetype-Directory is not readable!