【发布时间】：2015-05-07 17:38:09
【问题描述】：
我正在为我的部门开发一个网站。我在 Ubuntu 中使用临时服务器 apache。我在访问文件夹中的文件时遇到了麻烦。我有这样的情况，我将上传一张照片，它将存储在文件夹 /var/www/web/uploads 中，其路径存储在 mysql php 数据库中。我将路径保存在数据库和上述文件夹中没有问题，但是当我尝试在网站中显示时，我无法访问它。它说我不是所有者。它显示 www-data 作为所有者。我知道我应该更改终端中的权限级别。我尽了最大努力，但没有得到丰硕的成果。任何人都可以帮助我如何更改其权限级别。
//这是html代码indeximg.php
<html>
<head>
<title>File Upload with PHP</title>
<link href="styleimg.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="theForm">
<form action="uploader.php" enctype="multipart/form-data" method="post" >
<label>Title
<span class="small">Title of the File</span>
</label>
<input type="text" name="mName" id="mName" />
<label>File
<span class="small">Choose a File</span>
</label>
<input type="file" name="mFile" id="mFile" />
<button type="submit" class="red-button" id="sendmail">Upload (<?php echo ini_get('upload_max_filesize').'B'; ?>)</button>
<div class="spacer"></div>
</form>
</div>
</body>
</html>
// 这是文件上传加载器代码
// replace with your mysql database details
$MySql_username = "shwetharao"; //mysql username
$MySql_password = "shwetha"; //mysql password
$MySql_hostname = "localhost"; //hostname
$MySql_databasename = 'semilab'; //databasename
if (!@file_exists($UploadDirectory)) {
//destination folder does not exist
die("Make sure Upload directory exist!");
}
if($_POST)
{
if(!isset($_POST['mName']) || strlen($_POST['mName'])<1)
{
//required variables are empty
die("Title is empty!");
}
if($_FILES['mFile']['error'])
{
//File upload error encountered
die(upload_errors($_FILES['mFile']['error']));
}
$FileName = strtolower($_FILES['mFile']['name']); //uploaded file name
$FileTitle = mysql_real_escape_string($_POST['mName']); // file title
$ImageExt = substr($FileName, strrpos($FileName, '.')); //file extension
$FileType = $_FILES['mFile']['type']; //file type
$FileSize = $_FILES['mFile']["size"]; //file size
$RandNumber = rand(0, 9999999999); //Random number to make each filename unique.
$uploaded_date = date("Y-m-d H:i:s");
switch(strtolower($FileType))
{
//allowed file types
case 'image/png': //png file
case 'image/gif': //gif file
case 'image/jpeg': //jpeg file
case 'application/pdf': //PDF file
case 'application/msword': //ms word file
case 'application/vnd.ms-excel': //ms excel file
case 'application/x-zip-compressed': //zip file
case 'text/plain': //text file
case 'text/html': //html file
break;
default:
die('Unsupported File!'); //output error
}
//File Title will be used as new File name
$NewFileName = preg_replace(array('/\s/', '/\.[\.]+/', '/[^\w_\.\-]/'), array('_', '.', ''), strtolower($FileTitle));
$NewFileName = $NewFileName.'_'.$RandNumber.$ImageExt;
$UploadDirectory = "/var/www/web/".$NewFileName;
echo $UploadDirectory;
//Rename and save uploded file to destination folder.
if(move_uploaded_file($_FILES['mFile']["tmp_name"], $UploadDirectory))
{
//connect & insert file record in database
$dbconn = mysql_connect($MySql_hostname, $MySql_username, $MySql_password)or die("Unable to connect to MySQL");
mysql_select_db($MySql_databasename,$dbconn);
@mysql_query("INSERT INTO file_recordimg (file_name, file_title, file_size, uploaded_date , uploaded_path) VALUES ('$NewFileName', '$FileTitle',$FileSize,'$uploaded_date','$UploadDirectory')");
mysql_close($dbconn);
header('Location: '.$SuccessRedirect); //redirect user after success
}else{
die('error uploading File!');
}
}
//function outputs upload error messages, http://www.php.net/manual/en/features.file-upload.errors.php#90522
function upload_errors($err_code) {
switch ($err_code) {
case UPLOAD_ERR_INI_SIZE:
return 'The uploaded file exceeds the upload_max_filesize directive in php.ini';
case UPLOAD_ERR_FORM_SIZE:
return 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form';
case UPLOAD_ERR_PARTIAL:
return 'The uploaded file was only partially uploaded';
case UPLOAD_ERR_NO_FILE:
return 'No file was uploaded';
case UPLOAD_ERR_NO_TMP_DIR:
return 'Missing a temporary folder';
case UPLOAD_ERR_CANT_WRITE:
return 'Failed to write file to disk';
case UPLOAD_ERR_EXTENSION:
return 'File upload stopped by extension';
default:
return 'Unknown upload error';
}
}
?>
/// 输出
<?php
$MySql_username = "shwetharao"; //mysql username
$MySql_password = "shwetha"; //mysql password
$MySql_hostname = "localhost"; //hostname
$MySql_databasename = 'semilab'; //databasename
$dbconn = mysql_connect($MySql_hostname, $MySql_username, $MySql_password)or die("Unable to connect to MySQL");
mysql_select_db($MySql_databasename,$dbconn);
$sql = 'SELECT uploaded_path
FROM file_recordimg';
$retval = mysql_query( $sql, $dbconn );
if(! $retval )
{
die('Could not get data: ' . mysql_error());
}
while($row = mysql_fetch_array($retval, MYSQL_ASSOC))
{
echo "$row[uploaded_path]";
?>
<table style="border-collapse: collapse; font: 12px Tahoma;" border="1">
<tbody><tr>
<td>
<img src="<?php echo $row[uploaded_path];?>">
</td>
</tr>
</tbody></table>
<div align="center"><strong>Success.. File uploaded!</strong></div>
<?php
}
mysql_close($dbconn);
?>
【问题讨论】：
-
可以给我们看代码吗？？
-
你能以 www.appname.com/uploads 的身份访问 images 文件夹吗？
-
什么时候说你不是所有者？
-
从前端获取图像并上传到“uploads”文件夹。但是图像被锁定。当我单击属性-> 权限（图像）时，它将所有者显示为 www-data。它表明我不是上传文件的所有者。但在 /var/www/web/uploads 之前，我可以访问文件夹。
标签： php mysql apache web file-permissions