upload.php

简介：IceBB是一个强大

<?php
//******************************************************//
//           /////////                 ////   /////
//              //                    // //  //  //
//             //      /////  ////// ////   ////
//            //      //     ////   //  // //  //
//        /////////  /////  ////// /////  /////
//******************************************************//
// icebb.net // 1.0 Beta 7
//******************************************************//
// upload class
// $Id: upload.php 1 2006-04-25 22:10:16Z mutantmonkey $
//******************************************************//

if(!defined('IN_ICEBB'))
{
	die('This file may not be accessed directly.');
}

class Upload {
	var $temp_file_name;
	var $file_name;
	var $upload_dir;
	var $upload_log_dir;
	var $max_file_size;
	var $ext_array;

	function validate_extension() {
		$file_name = trim($this->file_name);
		$extension = strtolower(strrchr($file_name,"."));
		$ext_array = $this->ext_array;
		$ext_count = count($ext_array);
		if($file_name) {
			if (!$ext_array) {
				return true;
			}
          else {
				foreach ($ext_array as $key => $value) {
					$first_char = substr($value,0,1);
						if($first_char <> ".") {
							$extensions[] = ".".strtolower($value);
						}
                         else {
							$extensions[] = strtolower($value);
						}
				}
				foreach($extensions as $key => $value) {
					if($value == $extension) {
						$valid_extension = "TRUE";
					}				
				}
				if($valid_extension) {
					return true;
				}
               else {
					return false;
				}
			}
		}
     else {
			return false;
		}
	}

	function validate_size() {
		$temp_file_name = trim($this->temp_file_name);
		$max_file_size = trim($this->max_file_size);
		if($temp_file_name) {
			$size = filesize($temp_file_name);
				if($size > $max_file_size) {
					return false;														
				}
               else {
					return true;
				}
		}
     else {
			return false;
		}	

	}

	function existing_file() {
		$file_name = trim($this->file_name);
		$upload_dir = $this->get_upload_directory();

		if($upload_dir == "ERROR") {
			return true;
		}
     else {
			$file = $upload_dir . $file_name;
			if(file_exists($file)) {
				return true;
			}
          else {
				return false;
			}
		}	
	}

	function get_file_size() {
		$temp_file_name = trim($this->temp_file_name);
		$kb = 1024;
		$mb = 1024 * $kb;
		$gb = 1024 * $mb;
		$tb = 1024 * $gb;
			if($temp_file_name) {
				$size = filesize($temp_file_name);
					if($size < $kb) {
						$file_size = "$size Bytes";
					}
					elseif($size < $mb) {
						$final = round($size/$kb,2);
						$file_size = "$final KB";
					}
					elseif($size < $gb) {
						$final = round($size/$mb,2);
						$file_size = "$final MB";
					}
					elseif($size < $tb) {
						$final = round($size/$gb,2);
						$file_size = "$final GB";
					}
                    else {
						$final = round($size/$tb,2);
						$file_size = "$final TB";
					}
			}
          else {
				$file_size = "ERROR: NO FILE PASSED TO get_file_size()";
			}
			return $file_size;
	}

	function get_max_size() {
		$max_file_size = trim($this->max_file_size);
		$kb = 1024;
		$mb = 1024 * $kb;
		$gb = 1024 * $mb;
		$tb = 1024 * $gb;
		if($max_file_size) {
			if($max_file_size < $kb) {
				$max_file_size = "max_file_size Bytes";
			}
			elseif($max_file_size < $mb) {
				$final = round($max_file_size/$kb,2);
				$max_file_size = "$final KB";
			}
			elseif($max_file_size < $gb) {
				$final = round($max_file_size/$mb,2);
				$max_file_size = "$final MB";
			}
			elseif($max_file_size < $tb) {
				$final = round($max_file_size/$gb,2);
				$max_file_size = "$final GB";
			}
          else {
				$final = round($max_file_size/$tb,2);
				$max_file_size = "$final TB";
			}
		}
     else {
			$max_file_size = "ERROR: NO SIZE PARAMETER PASSED TO  get_max_size()";
		}
		return $max_file_size;

	}

	function get_upload_directory() {
		$upload_dir = trim($this->upload_dir);
		if($upload_dir) {
			$ud_len = strlen($upload_dir);
			$last_slash = substr($upload_dir,$ud_len-1,1);
				if($last_slash <> "/") {
					$upload_dir = $upload_dir."/";
				}
               else {
					$upload_dir = $upload_dir;
				}
				$handle = @opendir($upload_dir);
					if($handle) {
						$upload_dir = $upload_dir;
						closedir($handle);
					}
                    else {
						$upload_dir = "ERROR";
					}
		}
     else {
			$upload_dir = "ERROR";
		}
		return $upload_dir;
	}

	function get_upload_log_directory() {
		$upload_log_dir = trim($this->upload_log_dir);
		if($upload_log_dir) {
			$ud_len = strlen($upload_log_dir);
			$last_slash = substr($upload_log_dir,$ud_len-1,1);
				if($last_slash <> "/") {
					$upload_log_dir = $upload_log_dir."/";
				}
               else {
					$upload_log_dir = $upload_log_dir;
				}
				$handle = @opendir($upload_log_dir);
					if($handle) {
						$upload_log_dir = $upload_log_dir;
						closedir($handle);
					}
                    else {
						$upload_log_dir = "ERROR";
					}
		}
     else {
			$upload_log_dir = "ERROR";
		}
		return $upload_log_dir;
	}

	function upload_file_no_validation() {
		$temp_file_name = trim($this->temp_file_name);
		$file_name = trim(strtolower($this->file_name));
		$upload_dir = $this->get_upload_directory();
		$upload_log_dir = $this->get_upload_log_directory();
		$file_size = $this->get_file_size();
		$ip = trim($_SERVER['REMOTE_ADDR']);
		$cpu = gethostbyaddr($ip);
		$m = date("m");
		$d = date("d");
		$y = date("Y");
		$date = date("m/d/Y");
		$time = date("h:i:s A");

		if(($upload_dir == "ERROR") OR ($upload_log_dir == "ERROR")) {
			return false;
		}
     else {
			if(is_uploaded_file($temp_file_name)) {
				if(move_uploaded_file($temp_file_name,$upload_dir . $file_name)) {
					$log = $upload_log_dir.$y."_".$m."_".$d.".txt";
					$fp = fopen($log,"a+");
					fwrite($fp,"$ip-$cpu | $file_name | $file_size | $date | $time");
					fclose($fp);
					return true;
				}
               else {
					return false;	
				}
			}
          else {
				return false;
			}
		}
	}

	function upload_file_with_validation() {
		$temp_file_name = trim($this->temp_file_name);
		$file_name = trim(strtolower($this->file_name));
		$upload_dir = $this->get_upload_directory();
		$upload_log_dir = $this->get_upload_log_directory();
		$file_size = $this->get_file_size();
		$ip = trim($_SERVER['REMOTE_ADDR']);
		$cpu = gethostbyaddr($ip);
		$m = date("m");
		$d = date("d");
		$y = date("Y");
		$date = date("m/d/Y");
		$time = date("h:i:s A");
		$valid_user = $this->validate_user();
		$valid_size = $this->validate_size();
		$valid_ext = $this->validate_extension();
		$existing_file = $this->existing_file();

		if(($upload_dir == "ERROR") OR ($upload_log_dir == "ERROR")) {
			return false;
		}
		if((((!$valid_user) OR (!$valid_size) OR (!$valid_ext) OR ($existing_file)))) {
			return false;
		}
     else {
			if(is_uploaded_file($temp_file_name)) {
				if(move_uploaded_file($temp_file_name,$upload_dir . $file_name)) {
					$log = $upload_log_dir.$y."_".$m."_".$d.".txt";
					$fp = fopen($log,"a+");
					fwrite($fp,"$ip-$cpu | $file_name | $file_size | $date | $time");
					fclose($fp);
					return true;
				}
               else {
					return false;
				}
			}
          else {
				return false;
			}
		}
	}
}
?>