upload.php

全新且完善的强大网上商店系统

<?php
/*
  [SOOBIC!] admin/includes/upload.php 

	Version: 1.0.0
	Author: Soolan ([e-mail])
	Copyright: soolan (www.soobic.com)
	Last Modified: 2005/4/1 10:00

*/

class upload {
    var $file, $filename, $destination, $permissions, $extensions, $tmp_filename, $message_location,$im;

    function upload($file = '', $destination = '', $permissions = '777', $extensions = '') {
      $this->set_file($file);
      $this->set_destination($destination);
      $this->set_permissions($permissions);
      $this->set_extensions($extensions);

      $this->set_output_messages('direct');

      if (tep_not_null($this->file) && tep_not_null($this->destination)) {
          $this->set_output_messages('session');
      }
    }

    function parse($filename) {
      global $messageStack;
      $filename=$filename=="" ? time() :$filename;
      if (isset($_FILES[$this->file])) {
        $file = array('name' => $_FILES[$this->file]['name'],
                      'type' => $_FILES[$this->file]['type'],
                      'size' => $_FILES[$this->file]['size'],
                      'tmp_name' => $_FILES[$this->file]['tmp_name']);
      } elseif (isset($GLOBALS['HTTP_POST_FILES'][$this->file])) {
        global $HTTP_POST_FILES;

        $file = array('name' => $HTTP_POST_FILES[$this->file]['name'],
                      'type' => $HTTP_POST_FILES[$this->file]['type'],
                      'size' => $HTTP_POST_FILES[$this->file]['size'],
                      'tmp_name' => $HTTP_POST_FILES[$this->file]['tmp_name']);
      } else {
        $file = array('name' => (isset($GLOBALS[$this->file . '_name']) ? $GLOBALS[$this->file . '_name'] : ''),
                      'type' => (isset($GLOBALS[$this->file . '_type']) ? $GLOBALS[$this->file . '_type'] : ''),
                      'size' => (isset($GLOBALS[$this->file . '_size']) ? $GLOBALS[$this->file . '_size'] : ''),
                      'tmp_name' => (isset($GLOBALS[$this->file]) ? $GLOBALS[$this->file] : ''));
      }
      
      if ( tep_not_null($file['tmp_name']) && ($file['tmp_name'] != 'none') && is_uploaded_file($file['tmp_name']) ) {
         if(CONFIG_CREATE_SMAILL_IMAGE=='True'){
				    if($file['type'] == "image/pjpeg"){
             $this->im = imagecreatefromjpeg($file['tmp_name']);
            }elseif($file['type'] == "image/x-png"){
             $this->im = imagecreatefrompng($file['tmp_name']);
            }elseif($file['type'] == "image/gif"){
             $this->im = imagecreatefromgif($file['tmp_name']);
            }
				 }
				if (sizeof($this->extensions) > 0) {
          if (!in_array(strtolower(substr($file['name'], strrpos($file['name'], '.')+1)), $this->extensions)) {
            if ($this->message_location == 'direct') {
              $messageStack->add(ERROR_FILETYPE_NOT_ALLOWED, 'error');
            } else {
              $messageStack->add_session(ERROR_FILETYPE_NOT_ALLOWED, 'error');
            }

            return false;
          }
        }
        $extension = strtolower(substr(strrchr($file['name'], '.'), 1));
        $this->set_file($file);
        $this->set_filename($filename.'.'.$extension);
        if(CONFIG_CREATE_SMAILL_IMAGE=='True'){
				    $this->set_filename_small('small_'.$filename);
        }
				$this->set_tmp_filename($file['tmp_name']);

        return $this->check_destination();
      } else {
        if ($this->message_location == 'direct') {
          $messageStack->add(WARNING_NO_FILE_UPLOADED, 'warning');
        } else {
          $messageStack->add_session(WARNING_NO_FILE_UPLOADED, 'warning');
        }

        return false;
      }
    }

    function save($newwidth='',$newheight='') {
      global $messageStack;

      if (substr($this->destination, -1) != '/') $this->destination .= '/';

			if (move_uploaded_file($this->file['tmp_name'], $this->destination . $this->filename)) {
         if(CONFIG_CREATE_SMAILL_IMAGE=='True'&& $newwidth!=''&& $newheight!=''){
             $this->ResizeImage($this->im,$newwidth,$newheight,$this->destination . $this->filename_small);
             ImageDestroy ($this->im);
				 }
				chmod($this->destination . $this->filename, $this->permissions);

        if ($this->message_location == 'direct') {
            $messageStack->add(SUCCESS_FILE_SAVED_SUCCESSFULLY, 'success');
        } else {
            $messageStack->add_session(SUCCESS_FILE_SAVED_SUCCESSFULLY, 'success');
        }

        return true;
      } else {
        if ($this->message_location == 'direct') {
          $messageStack->add(ERROR_FILE_NOT_SAVED, 'error');
        } else {
          $messageStack->add_session(ERROR_FILE_NOT_SAVED, 'error');
        }

        return false;
      }
    }

    function set_file($file) {
      $this->file = $file;
    }

    function set_destination($destination) {
       if(!is_dir($destination)) {
		       mkdir($destination, 0777);
	      }	
			$this->destination = $destination;
    }

    function set_permissions($permissions) {
      $this->permissions = octdec($permissions);
    }

    function set_filename($filename) {
      $this->filename = $filename;
    }
    function set_filename_small($filename) {
      $this->filename_small = $filename;
    }
    function set_tmp_filename($filename) {
      $this->tmp_filename = $filename;
    }

    function set_extensions($extensions) {
      if (tep_not_null($extensions)) {
        if (is_array($extensions)) {
          $this->extensions = $extensions;
        } else {
          $this->extensions = array($extensions);
        }
      } else {
        $this->extensions = array();
      }
    }

    function check_destination() {
      global $messageStack;

      if (!is_writeable($this->destination)) {
        if (is_dir($this->destination)) {
          if ($this->message_location == 'direct') {
            $messageStack->add(sprintf(ERROR_DESTINATION_NOT_WRITEABLE, $this->destination), 'error');
          } else {
            $messageStack->add_session(sprintf(ERROR_DESTINATION_NOT_WRITEABLE, $this->destination), 'error');
          }
        } else {
          if ($this->message_location == 'direct') {
            $messageStack->add(sprintf(ERROR_DESTINATION_DOES_NOT_EXIST, $this->destination), 'error');
          } else {
            $messageStack->add_session(sprintf(ERROR_DESTINATION_DOES_NOT_EXIST, $this->destination), 'error');
          }
        }

        return false;
      } else {
        return true;
      }
    }

    function set_output_messages($location) {
      switch ($location) {
        case 'session':
          $this->message_location = 'session';
          break;
        case 'direct':
        default:
          $this->message_location = 'direct';
          break;
      }
    }
    function ResizeImage($im,$maxwidth,$maxheight,$name){
        $width = imagesx($im);
        $height = imagesy($im);
        if(($maxwidth && $width > $maxwidth) || ($maxheight && $height > $maxheight)){
            if($maxwidth && $width > $maxwidth){
                $widthratio = $maxwidth/$width;
                $RESIZEWIDTH=true;
            }
            if($maxheight && $height > $maxheight){
                $heightratio = $maxheight/$height;
                $RESIZEHEIGHT=true;
            }
            if($RESIZEWIDTH && $RESIZEHEIGHT){
                if($widthratio < $heightratio){
                    $ratio = $widthratio;
                }else{
                    $ratio = $heightratio;
                }
            }elseif($RESIZEWIDTH){
                $ratio = $widthratio;
            }elseif($RESIZEHEIGHT){
                $ratio = $heightratio;
            }
            $newwidth = $width * $ratio;
            $newheight = $height * $ratio;
            if(function_exists("imagecopyresampled")){
                 $newim = imagecreatetruecolor($newwidth, $newheight);
                 imagecopyresampled($newim, $im, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
            }else{
                 $newim = imagecreate($newwidth, $newheight);
                 imagecopyresized($newim, $im, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
             }
             ImageJpeg ($newim,$name . ".jpg");
             ImageDestroy ($newim);
         }else{
            ImageJpeg ($im,$name . ".jpg");
         }
    }
}
?>