小编Par*_*ack的帖子

可怕的'让我登录'和会话检查

所以,我知道这已经完成了死亡,但我遇到的所有答案都非常令人困惑/相互矛盾,或者他们的解释是不完整的,我正在努力跟上并利用所有资源做到这一点可用,但我想我已经失去了某个地方.我想一劳永逸地澄清一下.感谢您提前耐心,因为这可能会让您有点长时间的啰嗦.

我的页面顶部有一个小的登录框,如果用户没有登录,它将保持不变.如果他们已登录,那么他们将看到一个问候语,其中包含他们的名字,而不是登录框.

会话检查

首先,这里是一个图表(据我所知到目前为止)如何检查用户是否可以访问"仅限会员"的内容.(此代码位于页面顶部以检查和设置变量,例如$loggedin = true;)

会话检查图

就目前而言,我$_SESSION['loggedin']只是用户名.根据我的理解,会话可以伪造或劫持来自同一个域,因此我知道这是非常不安全的(例如,攻击者可能会以某种方式创建一个包含不同用户名和会话的会话 - 即时访问该用户的东西)但是我不知道我应该如何检查会话.我可以想象这样做的唯一方法是每次加载页面时连接到数据库并检查MD5哈希或来自数据库的东西(并更新它)但我想这会产生大量不必要的服务器流量而且我我几乎可以肯定有更好的方法.

在登录

以下是用户登录时发生的情况(以及是否显示问候语或登录框).

登录图

在大多数情况下,我非常坚定这部分(我希望),但我不知道我的MD5哈希应该包含什么,以便以后能够重新检查数据库中的哈希值, cookie和一个新生成的哈希,以确保攻击者没有召唤出一个cookie.另外,如下面的评论中所述,我可能会废弃在哈希中使用IP地址以允许用户保持从多个位置登录(例如,他们的手机和笔记本电脑.)

所以我的问题是:

我应该如何检查我的会话是不是假的？
我该怎么检查我的饼干是不是假的？
在检查到位后,我的登录方法是否足够安全？
我遗漏了什么重要的东西？

如果您有什么想问的话,请在评论中告诉我,我很乐意用尽可能多的信息来编辑我的问题.

php mysql session

Par*_*ack

2011 08-09

36
推荐指数

1
解决办法

1998
查看次数

为什么在HTML元素中添加id ="ad_a"有时会使其在Chrome和Firefox中不可见？

我带给你一个简单的HTML片段:

<HTML>
<HEAD></HEAD>
<BODY>
<div id="ad_a">                 
    test DIV
</div>

test BODY

</BODY>
</HTML>

Run Code Online (Sandbox Code Playgroud)

是的,没有doctype或者你有什么,但这些奇怪的行为似乎都不重要.

任何人都可以告诉我为什么叫我的div id="ad_(ANYTHING HERE)"隐藏在这个div里面的一切？它只是..消失..它显示在页面源中但它没有显示在加载的页面上..

我首先在Google Chrome中注意到了这一点.Firefox似乎忽略了它(至少对我来说,但我的朋友说它发生在他的FF中)我的Internet Explorer 9也忽略了这个div名称并在页面上显示其内容.

发生了什么事,为什么这样做？

这是常用的东西吗？如果是这样,它会做什么？

html

Par*_*ack

2011 09-02

8
推荐指数

1
解决办法

138
查看次数

AS3:`FullScreenEvent`是否暂时将内容添加到显示列表中？

简答: 是的,FullScreenEvent暂时将1个孩子加入舞台.

Long Rant: 那怎么样......我并不疯狂......我不知道这是否有记载但是 - 这是真的.弹出"你可以按esc退出全屏"的小消息会暂时将一个孩子添加到舞台上,并将其保持在最高级别,直到它淡出为止.索引的突然入侵真的搞砸了我.所以我的回答是,我猜.现在我只需要弄清楚如何摆脱这种轻微的烦恼.

寻找幽灵孩子: 我试图在我的项目中找到孩子,使用stage.getChildAt(11)+" "+stage.getChildAt(10)+..Etc Etc ..和stage.getChildAt(11).name+" "+stage.getChildAt(10).name+..Etc Etc ..(一种快速的草率方式将其追踪到舞台上的文本框..)但是我无法将它绑定到一个特定的名称..这个名字只是作为'实例(无论在线创建它是什么数字)'.类型很有意思,因为它是null..我不知道这是正常还是其他任何东西,但如果它是我所做的事情之一,它将是[Object Sprite]或类似的东西......非常奇怪.此外,当试图从adobe livedocs获取信息时(比如从石头上挤血......)我在弹出消息上找到的是:

当用户进入全屏模式以通知用户他们处于全屏模式并且他们可以按Escape键结束全屏模式时,电影上方会出现Flash运行时对话框.

"Flash运行时对话框"..这是否意味着它是内部的但它仍然使用那个索引点？

每当弹出窗口显示时,我都尝试在舞台上制作所有的东西alpha = 0(stage.numChildren比它应该的更多)并且除了'esc to exit'消息之外应该有的东西都消失了.

Sooo ..是的..这就是我现在所能想到的......

考虑到我还在学习闪光灯,我可能已经采用了自己的方法来寻找孩子.如果有人检查出来并制作一个简单的原型来捣乱它,请让我知道你发现了什么^ __ ^

作为Tyler的旁注,我记得为什么我没想到要做一些追踪Event.ENTER_FRAME.这是因为我在浏览器中查看SWF时无法查看跟踪.并且由于FullScreenEvent仅在设置了HTML参数allowfullscreen ='true'时才在浏览器中工作,所以我懒得在舞台上添加一个动态文本框并更新它而不是我想.. = P

无论如何,

感谢您的时间和耐心.

原帖: 嗨!

我正在flash中创建一个图库.它几乎处于正常工作状态,除非我尝试将其全屏显示,否则我对此非常满意.

当我使用全屏幕画廊时FullScreenEvent,会让用户知道他们可以按下的那个小默认消息Esc出现在屏幕上.并且当显示此消息时,如果我在屏幕外创建图像并将其补间以进行查看,则下一个图像将位于我的所有 GUI精灵之上.

但是,如果我等待这个小消息淡出并消失,那么一切都按照应有的方式行事,我的图像索引设置为1,就像我想要的那样(在我的GUI精灵和东西下面).

现在,请记住,我并不排除我的代码有问题,因为这种情况很可能就是这样,但经过长时间的思考和空手而归之后,我一直有点迷信闪光灯在我身上耍花招'小消息'不是独立的,实际上已添加到显示列表中.

有人知道我是不是在想象事情？或者'press esc'消息是我的swf在显示列表中的一部分？

感谢任何人的时间,如果他们能在这件事上启发我.

flash actionscript children fullscreen actionscript-3

Par*_*ack

2011 01-27

5
推荐指数

1
解决办法

523
查看次数

PHP:检查3个变量是否相同的最佳方法？

请原谅我,如果这是一个常见的事情,但我不确定我应该怎么做.

我想看看三个变量是否彼此相同

我以为我能做到这一点:

<?php
 if ($one == $two == $three) {
  echo "they all match.";
 } else {
  echo "one of these variables do not match."; 
 }
?>

Run Code Online (Sandbox Code Playgroud)

但我想这是不可能的.

有这个语法吗？或者我必须单独检查它们/用&&或|| ？

我知道单独检查它们会提供更多的准确性(并且可能是更好的做法)但是对于这种特殊情况,哪一个不匹配并不重要.

php variables syntax

Par*_*ack

2011 08-03

3
推荐指数

2
解决办法

3562
查看次数

GIF上的黑色背景而不是PHP中的透明度使用imagegif()

编辑2: 成功!非常感谢moycakes!

在保持透明度的同时将PNG转换为GIF的正确方法如下:

$input =  "data:image/png;base64,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";
$image = imagecreatefrompng($input);

imagesavealpha($image, true);
imagecolortransparent($image, 127<<24);

imagegif($image, 'img/test.gif');

Run Code Online (Sandbox Code Playgroud)

歌诗!两天这么简单的几行代码> __ <

感谢所有发布建议的人.

老帖子:

好吧,我现在已经知道了.(为什么PHP中的GD库如此令人困惑？)我已经在这里工作了两个小时了两天...而且我无法让PHP从具有透明背景的PNG制作GIF.

在StackOverflow上有几个关于这个的帖子,但提供的解决方案都没有真正帮助我.我总是以黑色背景图像结束,或者我的图像中的所有黑色都变得透明,除了背景(或者只是一切都保持黑色).

我打字imagecolorallocate和imagecolortransparent很多次,这些命令都失去了意义,我..> ___ <

我的代码看起来像这样:

$input =  "data:image/png;base64,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";
list($ignore, $imgData) = explode(',', $input);
$image = imagecreatefromstring(base64_decode($imgData));

imagealphablending($image, true); // setting alpha blending on
imagesavealpha($image, true); // save alphablending setting

//my code works up until this point (I can output a transparent PNG successfully)


//this is where I would make a new …

Run Code Online (Sandbox Code Playgroud)

php gd image gif

Par*_*ack

2013 06-10

3
推荐指数

1
解决办法

3495
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