分析x2相册批量上传

evenzhou · 发表于 2011-5-16 09:26:53

===================Discuz! x2====================
首先我们进入相册批量上传从地址栏可以分析 home.php?mod=spacecp&ac=upload&op=flash&albumid=0
访问的文件是 source\module\home\home_spacecp.php
此文件底部 require_once libfile('spacecp/'.$ac, 'include');
调用source\include\spacecp\spacecp_upload.php
进入这部分

if(!checkperm('allowupload')) {
showmessage('no_privilege_upload', '', array(), array('return' => true));
}
cknewuser();
$config = urlencode($_G['siteroot'].'home.php?mod=misc&ac=swfupload&op=config'.($_GET['op'] == 'cam'? '&cam=1' : ''));
$albums = getalbums($_G['uid']);
$actives = ($_GET['op'] == 'flash' || $_GET['op'] == 'cam')?array($_GET['op']=>' class="a"'):array('js'=>' class="a"');
$maxspacesize = checkperm('maxspacesize');
if(!empty($maxspacesize)) {
space_merge($space, 'count');
space_merge($space, 'field_home');
$maxspacesize = $maxspacesize + $space['addsize'] * 1024 * 1024;
$haveattachsize = ($maxspacesize < $space['attachsize'] ? '-':'').formatsize($maxspacesize - $space['attachsize']);
} else {
$haveattachsize = 0;
}
require_once libfile('function/friend');
$groups = friend_group_list();
loadcache('albumcategory');
$category = $_G['cache']['albumcategory'];
$categoryselect = '';
if($category) {
include_once libfile('function/portalcp');
$categoryselect = category_showselect('album', 'catid', !$_G['setting']['albumcategoryrequired'] ? true : false, $_GET['catid']);
}
}

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此处的代码中 $config = urlencode($_G['siteroot'].'home.php?mod=misc&ac=swfupload&op=config'.($_GET['op'] == 'cam'? '&cam=1' : ''));
是访问flash 处理文件的入口
include_once template("home/spacecp_upload");
然后调用模版文件，下面我们来查看模版相应的相册批量上传部分的代码

<script type="text/javascript">
document.write(AC_FL_RunContent(
'width', '100%', 'height', '400',
'src', '{IMGDIR}/album_upload.swf?config=$config&albumid=$_GET[albumid]',
'quality', 'high', 'wmode', 'transparent'
));
</script>

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代码中的config来自上面提到的$config 这部分代码，这部分代码用来显示flash，来自于static/js/common.js
接下来，访问将进入flash处理的关键部分
source\include\misc\misc_swfupload.php
首次执行的是

} elseif($op == 'config') {
$hash = md5($_G['uid'].UC_KEY);
$uploadurl = urlencode(getsiteurl().'home.php?mod=misc&ac=swfupload'.($iscamera ? '&op=screen' : ($isdoodle ? '&op=doodle&from=':'')));
.......中间代码省略
$albums = getalbums($_G['uid']);
//系统分类
loadcache('albumcategory');
$categorys = $_G['cache']['albumcategory'];
$categorystat = $_G['setting']['albumcategorystat'] ? intval($_G['setting']['albumcategorystat']) : 0;
$categoryrequired = $_G['setting']['albumcategoryrequired'] ? intval($_G['setting']['albumcategoryrequired']) : 0;

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代码中$albums = getalbums($_G['uid']);
      //系统分类
      loadcache('albumcategory');
      $categorys = $_G['cache']['albumcategory'];
用于获取用户的相册分类，这也是容易出错的地方（当用户在后台开启了相册分类，但是没有设置分类项，导致$categorys为空）
$categorystat = $_G['setting']['albumcategorystat'] ? intval($_G['setting']['albumcategorystat']) : 0;
用于调用返回给flash的相册分类xml文件（template\default\home\misc_swfupload.htm）
当第一次访问完 misc_swfupload.php文件将返回xml文件给flash 用于显示，主要处理在文件底部
如果返回的xml文件有错误将导致flash上显示不正确，或者终止继续运行，导致flash停滞。返回正常程序将通过用户提交上传图片将再次访问该文件进入

elseif($_FILES && $_POST) {
if($_FILES["Filedata"]['error']) {
$uploadfiles = lang('spacecp', 'file_is_too_big');
} else {
$_FILES["Filedata"]['name'] = addslashes(diconv(urldecode($_FILES["Filedata"]['name']), 'UTF-8'));
$_POST['albumid'] = addslashes(diconv(urldecode($_POST['albumid']), 'UTF-8'));
$catid = $_POST['catid'] ? intval($_POST['catid']) : 0;
$uploadfiles = pic_save($_FILES["Filedata"], $_POST['albumid'], addslashes(diconv(urldecode($_POST['title']), 'UTF-8')), true, $catid);
}
$proid = $_POST['proid'];
$uploadResponse = true;
$albumid = 0;
if($uploadfiles && is_array($uploadfiles)) {
$status = "success";
$albumid = $uploadfiles['albumid'];
} else {
$status = "failure";
}
}

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其中$uploadfiles = pic_save($_FILES["Filedata"], $_POST['albumid'], addslashes(diconv(urldecode($_POST['title']), 'UTF-8')), true, $catid); 作用是保存图片（从临时目录移动到服务器端，达到上传文件效果），（函数来自source\function\function_spacecp.php）
到此，相册批量上传图片已基本结束。

otherbank · 发表于 2011-8-24 11:54:42

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