我怎么能只允许privledged用户下载使用PHP中的PDF文件？ [英] How can I allow only privledged users to download a pdf with php?

问题描述

可以说我有一些PDF文件存储在我的服务器上，我只想让谁的付出获得一个人去下载一个特定的PDF格式。

Lets say I have some pdf files stored on my server and I only want to allow a person who's paid have access to download a particular pdf.

因此​​，对于一个例子，比方说我有一大堆的电子书籍。用户将能够下载电子书A中的唯一方法是，如果他的帐户包含针对特定图书的权利凭证。

So for an example, let's say I have a bunch of e-books. The only way a user would be able to download e-book A is if his account contains the right credentials for that particular book.

什么是实现这一目标的最好方法是什么？

What's the best way to accomplish this?

任何意见/建议，关于如何提高我的想法是极大的AP preciated！

Any ideas/advice on how to improve my idea are greatly appreciated!

我目前的想法：

• 一个用户下订单

• A user places an order

成功时，一个新的文件夹会 通过创建自己的 / ACCOUNT_NUM / ORDER_ID / A的副本 特定文件将被存储在 这个目录

Upon success, a new folder would be created by their /account_num/order_id/ A copy of the particular file would be stored in this directory

推荐答案

下面存放的文档根的PDF文件。当有人想下载说，A.pdf，引导他们到PHP页面，如：<？code>的download.php文件= A.pdf 。编写的download.php页，检查请求用户的权限，并强制下载A.pdf的，如果他们的权限不够好。

Store the PDFs below the document root. When someone wants to download say, A.pdf, direct them to a PHP page like: download.php?file=A.pdf. Write that download.php page to check the requesting user's privileges, and force a download of A.pdf if their privileges are good enough.

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