upload php script

mady · January 5, 2009

upload.php

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
<head>
  <title>ES Simple Uploader</title>
  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
  <meta name="generator" content="handmade" />
<style type="text/css">
<!--
	body {
		font-family: Arial, Helvetica, sans-serif;
		font-size: 14px;
		background-color: #DDDDDD;
	}
	.cnt {
		text-align: center;
	}
	.cnt_welcome {
		font-size: 16px;
		font-weight: bold;
		text-align: center;
	}
	.cnt_powered {
		font-size: 14px;
		font-weight: bold;
		text-align: center;
	}
	.cnt_small {
		font-size: 12px;
		text-align: center;
		padding-top: 50px;
	}
	.head_line {
		background-color: #BBBBBB;
	}
	.main_table {
		border: solid 1px #9D9992;
		font-size: 13px;
	}
	h4 {
		font-size: 12px;
		color: #DD0000;
		text-align: center;
	}
	.button {
		border: 1px solid #55555;
		font-weight: bold;
	}
-->
</style>
</head>

<body>
<?
include("config.php");

function path_options()
{
global $upload_dirs;
  $option = "";
  foreach ($upload_dirs as $path => $pinfo)
  {
    $option .= '<option value="'.$path.'">'.$pinfo["name"].'</option>';
  }
return $option;
}

function check_vals()
{
global $upload_dirs, $err;
if (!ini_get("file_uploads")) { $err .= "HTTP file uploading is blocked in php configuration file (php.ini). Please, contact to server administrator."; return 0; }
$pos = strpos(ini_get("disable_functions"), "move_uploaded_file");
if ($pos !== false) { $err .= "PHP function move_uploaded_file is blocked in php configuration file (php.ini). Please, contact to server administrator."; return 0; }
  if (!isset($_POST["path"]) || (strlen($_POST["path"]) == 0)) { $err .= "Please fill out path"; return 0; }
  if (!isset($upload_dirs[$_POST["path"]])) { $err .= "Incorrect path"; return 0; }
  if (!isset($_POST["pwd"]) || (strlen($_POST["pwd"]) == 0)) { $err .= "Please fill out password"; return 0; }
  elseif ($_POST["pwd"] != $upload_dirs[$_POST["path"]]["password"]) { $err .= "The upload password is incorrect"; return 0; }
  if (!isset($_FILES["userfile"])) { $err .= "Empty file"; return 0; }
  elseif (!is_uploaded_file($_FILES['userfile']['tmp_name'])) { $err .= "Empty file"; return 0; }
return 1;
}

$err = ""; $status = 0;
if (isset($_POST["upload"])) {
  if (check_vals()) {
    if (filesize($_FILES["userfile"]["tmp_name"]) > $max_file_size) $err .= "Maximum file size limit: $max_file_size bytes";
    else {
      if (move_uploaded_file($_FILES["userfile"]["tmp_name"], $upload_dirs[$_POST["path"]]["dir"].$_FILES["userfile"]["name"])) {
			$status = 1;
		}
      else $err .= "There are some errors!";
    }
  }
}

if (!$status) {
  if (strlen($err) > 0) echo "<h4>$err</h4>";
}
else {
  echo "<h4>"".$_FILES["userfile"]["name"]."" was successfully uploaded.</h4>";
}
?>
<p class="cnt_welcome">Welcome to ES Simple Uploader v 1.1.</p>
<p class="cnt">« <a href="http://www.energyscripts.com/Products/product2.html">Back to Product page</a> «</p>
<p class="cnt">(Select folder, set it's password, then select a file to upload and click "Upload" button).
<br />Note: 
	Folder: "Images folder", Password: "images";
	Folder: "Docs", Password: "docs";
	Folder: "Common files", Password: "common";
	Maximum file size: <?=$max_file_size/1024?> Kb.</p><br />
<form enctype="multipart/form-data" action="index.php" method="POST">
<input type="hidden" name="MAX_FILE_SIZE" value="<?=$max_file_size?>" />
<table class="main_table" align="center">
  <tr>
    <td colspan="2" class="head_line"> </td>
  </tr>
  <tr>
    <td>Folder:</td>
    <td><select name="path"><?=path_options()?></select></td>
  </tr>
  <tr>
    <td>Password:</td>
    <td><input type="password" name="pwd" style="width: 217px;" /></td>
  </tr>
  <tr>
    <td>Choose file:</td>
    <td><input type="file" name="userfile" style="width: 222px;" /></td>
  </tr>
  <tr>
    <td colspan="2" align="right"><input type="submit" name="upload" value="Upload" class="button" /></td>
  </tr>
</table>
</form>
</body>
</html>

config.php

<?
/*
Upload dirs(folders) list
- - - - - - - - - - - - - - - - - -
  "images" => array(
      "dir"     =>"uploads/images",
      "password"=>"images",
  ),
- - - - - - - - - - - - - - - - - -
"images" - just section name (any name you like), it is a key
"name" - the dir(folder) name in select box
"dir" - path to uploaded files
"password" - "dir" password
*/
$upload_dirs = array(
  "images" => array(
      "dir"     =>"uploads/images/",
      "name"    =>"Images folder",
      "password"=>"images",
  ),
  "docs" => array(
      "dir"     =>"uploads/docs/",
      "name"    =>"Docs",
      "password"=>"docs",
  ),
  "common" => array(
      "dir"     =>"uploads/common/",
      "name"    =>"Common files",
      "password"=>"common",
  ),
);

$max_file_size = 500000*1024; //max file upload size (bytes)
?>

I want to allow only one file extention '.mp3' to be uploaded.

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upload php script

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