将附件文件上载到另一个服务器[Mybb]

Question

我使用的是最新版本的mybb（mybb1.8），它有附件功能，但它将文件上传到当前主机，我想将文件上传至不同的服务器或主机。

我该怎么做？

如果您需要，请下载Mybb18：http://resources.mybb.com/downloads/mybb_1800.zip

附件PHP文件的PHP代码

<?php
/**
 * MyBB 1.8
 * Copyright 2014 MyBB Group, All Rights Reserved
 *
 * Website: http://www.mybb.com
 * License: http://www.mybb.com/about/license
 *
 */
define("IN_MYBB", 1);
define('THIS_SCRIPT', 'attachment.php');
require_once "./global.php";
if($mybb->settings['enableattachments'] != 1)
{
    error($lang->attachments_disabled);
}
// Find the AID we're looking for
if(isset($mybb->input['thumbnail']))
{
    $aid = $mybb->get_input('thumbnail', 1);
}
else
{
    $aid = $mybb->get_input('aid', 1);
}
$pid = $mybb->get_input('pid', 1);
// Select attachment data from database
if($aid)
{
    $query = $db->simple_select("attachments", "*", "aid='{$aid}'");
}
else
{
    $query = $db->simple_select("attachments", "*", "pid='{$pid}'");
}
$attachment = $db->fetch_array($query);
$plugins->run_hooks("attachment_start");
if(!$attachment)
{
    error($lang->error_invalidattachment);
}
$pid = $attachment['pid'];
// Don't check the permissions on preview
if($pid || $attachment['uid'] != $mybb->user['uid'])
{
    $post = get_post($pid);
    $thread = get_thread($post['tid']);
    if(!$thread && !isset($mybb->input['thumbnail']))
    {
        error($lang->error_invalidthread);
    }
    $fid = $thread['fid'];
    // Get forum info
    $forum = get_forum($fid);
    // Permissions
    $forumpermissions = forum_permissions($fid);
    if($forumpermissions['canview'] == 0 || $forumpermissions['canviewthreads'] == 0 || (isset($forumpermissions['canonlyviewownthreads']) && $forumpermissions['canonlyviewownthreads'] != 0 && $thread['uid'] != $mybb->user['uid']) || ($forumpermissions['candlattachments'] == 0 && !$mybb->input['thumbnail']))
    {
        error_no_permission();
    }
    // Error if attachment is invalid or not visible
    if(!$attachment['attachname'] || (!is_moderator($fid, "canviewunapprove") && ($attachment['visible'] != 1 || $thread['visible'] != 1 || $post['visible'] != 1)))
    {
        error($lang->error_invalidattachment);
    }
}
if(!isset($mybb->input['thumbnail'])) // Only increment the download count if this is not a thumbnail
{
    $attachupdate = array(
        "downloads" => $attachment['downloads']+1,
    );
    $db->update_query("attachments", $attachupdate, "aid='{$attachment['aid']}'");
}
// basename isn't UTF-8 safe. This is a workaround.
$attachment['filename'] = ltrim(basename(' '.$attachment['filename']));
$plugins->run_hooks("attachment_end");
if(isset($mybb->input['thumbnail']))
{
    $ext = get_extension($attachment['thumbnail']);
    switch($ext)
    {
        case "gif":
            $type = "image/gif";
            break;
        case "bmp":
            $type = "image/bmp";
            break;
        case "png":
            $type = "image/png";
            break;
        case "jpg":
        case "jpeg":
        case "jpe":
            $type = "image/jpeg";
            break;
        default:
            $type = "image/unknown";
            break;
    }
    header("Content-disposition: filename="{$attachment['filename']}"");
    header("Content-type: ".$type);
    $thumb = $mybb->settings['uploadspath']."/".$attachment['thumbnail'];
    header("Content-length: ".@filesize($thumb));
    $handle = fopen($thumb, 'rb');
    while(!feof($handle))
    {
        echo fread($handle, 8192);
    }
    fclose($handle);
}
else
{
    $ext = get_extension($attachment['filename']);
    switch($attachment['filetype'])
    {
        case "application/pdf":
        case "image/bmp":
        case "image/gif":
        case "image/jpeg":
        case "image/pjpeg":
        case "image/png":
        case "text/plain":
            header("Content-type: {$attachment['filetype']}");
            $disposition = "inline";
            break;
        default:
            $filetype = $attachment['filetype'];
            if(!$filetype)
            {
                $filetype = 'application/force-download';
            }
            header("Content-type: {$filetype}");
            $disposition = "attachment";
    }
    if(strpos(strtolower($_SERVER['HTTP_USER_AGENT']), "msie") !== false)
    {
        header("Content-disposition: attachment; filename="{$attachment['filename']}"");
    }
    else
    {
        header("Content-disposition: {$disposition}; filename="{$attachment['filename']}"");
    }
    if(strpos(strtolower($_SERVER['HTTP_USER_AGENT']), "msie 6.0") !== false)
    {
        header("Expires: -1");
    }
    header("Content-length: {$attachment['filesize']}");
    header("Content-range: bytes=0-".($attachment['filesize']-1)."/".$attachment['filesize']);
    $handle = fopen($mybb->settings['uploadspath']."/".$attachment['attachname'], 'rb');
    while(!feof($handle))
    {
        echo fread($handle, 8192);
    }
    fclose($handle);
}

Answer 1

Firstof:一个在服务器上发布（数据，文件）的表单被认为存在安全风险。要让浏览器感到自信，实现起来并不容易。因此，您的接收脚本应该在同一台服务器上。

这就是为什么我会在文件发布后移动它们。

如果你有一个linux/unix服务器，我会使用命令行。

您必须将文件从主机复制到目标上，并在成功时删除原始文件。

通过在文件系统中（在同一服务器上）

system("cp filename targetdir");

或者通过转移到不同的服务器上

system("scp filename server:targetdir")

还可以看看"rsync"，它在从服务器到服务器同步文件时效率高得多。