通过电子邮件发送给用户的链接 [英] sent link to user via email

问题描述

我正在开发一个应用程序，我已经制作了一个会计软件，我有我的网站，这里有一些关于这个软件的信息，我已经把一个名为下载演示的链接现在每当点击此链接时，一个查询表格打开现在，当用户按下提交按钮链接将发送到他的电子邮件时，该用户用强制性的现场电子邮件地址填写他对此软件的查询，他现在可以下载此软件演示，因为链接应该是随机数而不是像www.xyz.com/ test.aspx？demosoftware 24小时后该链接应该消失给该用户.....我有完整的邮件模块，简单的一封邮件将发送给他但我应该如何将此链接邮寄给他???请任何人帮助我...

解决方案

http://stackoverflow.com/questions/10719722/asp-net-app-to-send-an-mail-with-a-hyperlink [ ^ ]

试试这个链接



http://www.techrepublic.com/article/sending-e-mail-via-aspnet/5766248 [ ^ ]

没有直接的解决方案。你需要使用加密和一些盐。对于每天您需要生成一个字符串，该字符串将从服务器端进行验证。甚至你需要检查链接是来自同一个IP地址还是来自不同的地址（如果你想限制用户）。



其中一个方法是，

你可以使用MD5和一些盐。首先得到当前日期。并在添加salt（一些预定义的字符串）后应用MD5。将此烘焙加密字符串传递到URL以便在电子邮件中下载。



在服务器端，您已经拥有当前日期。你需要在服务器端执行相同的过程。获取日期，添加日期盐并生成MD5。如果两个MD5匹配然后弹出下载，否则你可以提示一些消息。



你还需要考虑这种方法的本地化。如果您将使用服务器日期，则不会发生此问题。所以最好的选择是使用服务器日期。



祝你好运

-Amit

i m developing one application now i have made one accounting software and i have my websites on this there is some information about this software with this i have put one link called download demo now whenever click on this link one inquiry form is open in that user fill his inquiry for this software with compulsary field email address now whenever he press submit button the link will send to his email and he can download this demo of software now that link should be random number and not like www.xyz.com/test.aspx?demosoftware and after 24 hours that link should be disappeare to that user..... i have complete mailing module to simple one mail will send to him but how should i mail this link to him???please anyone help me ...

解决方案

http://stackoverflow.com/questions/10719722/asp-net-app-to-send-an-mail-with-a-hyperlink[^]

Try this Link

http://www.techrepublic.com/article/sending-e-mail-via-aspnet/5766248[^]

Hi,

There is no straight forward solution for this. you need to use encryption along with some salt. for every day you need to generate one string and that string will be validated from the server side. Even you need to check if the link is from the same ip address or from the different(in case you want to restrict users).

One of the way is,
You can use MD5 along with some salt. First get the current date. and apply MD5 on that after adding salt(some predefined string). Pass this baked encrypted string to the URL for download in the email.

On the server side you already have the current date. you need to do the same process on the server side. get the date, add salt with the date and generate MD5. If both MD5 match then popup for the download, otherwise you can prompt some message.

You also need to consider localization for this methodology. If you will use Server date then this issue will not happen. so best option is to use server date.

Best luck
-Amit

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