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Using RewriteMap in web.config for 301 redirects

Posted on 2013-06-21
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Last Modified: 2014-03-17
Hi experts,

Tearing my hair out here.

I want to use the web.config file to handle some 301 redirects.  I have a RewriteMap and this is firing successfully but only if I don't include the domain name in the key value.  the problem is, I want to be able to have entries in the rewriteMap that have full domain and paths so that I can differentiate entries for different domains.  

e.g.

    <rewriteMaps>
       <rewriteMap name="Redirects">
           <add key="mydomain1.com/book-event/" value="myNEWdomain.com/events1/" />
           <add key="mydomain2.com/book-event/" value="myNEWdomain.com/events2/" />
       </rewriteMap>
    </rewriteMaps>

But as soon as I add the domain, the rule doesn't seem to fire/match and I just get a 404.

e.g. this works:

    <rewriteMaps>
       <rewriteMap name="Redirects">
           <add key="/book-event/" value="/events1/" />
       </rewriteMap>
    </rewriteMaps>

...but is of no use because I can't differentiate between domain names.

This is my code in full, from the web.config:

<rewrite>
    <rewriteMaps>
       <rewriteMap name="Redirects">
         <add key="mydomain1.com/book-event/" value="myNEWdomain.com/events1/" />
           <add key="mydomain2.com/book-event/" value="myNEWdomain.com/events2/" />
       </rewriteMap>
    </rewriteMaps>
      <rules>
      <rule name="Redirect rule1 for Redirects">
         <match url=".*" />
         <conditions>
       <add input="{Redirects:{REQUEST_URI}}" pattern="(.+)" />
         </conditions>
         <action type="Redirect" url="{C:1}" appendQueryString="false" />
      </rule>

Any help, much appreciated.  Maybe I just have my regular expression all wrong?
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Question by:jammy-d0dger
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5 Comments
 
LVL 27

Expert Comment

by:Sammy
Comment Utility
You will need to use a rule for the {HTTP_HOST}
See the solution provided in this post
http://forums.iis.net/t/1155754.aspx
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Accepted Solution

by:
jammy-d0dger earned 0 total points
Comment Utility
Thanks, I did find this reference but the link you gave didn't give a working conclusion.  I went on to work out myself that I needed to combine the two. I also had to add http:// to the prefix if the domain was changing, otherwise it would redirect using a relative path.

<rewrite>
    <rewriteMaps>
       <rewriteMap name="Redirects">
         <add key="mydomain1.com/book-event/" value="http://myNEWdomain.com/events1/" />
           <add key="mydomain2.com/book-event/" value="http://myNEWdomain.com/events2/" />
       </rewriteMap>
    </rewriteMaps>
      <rules>
      <rule name="Redirect rule1 for Redirects">
         <match url="^.*" />
         <conditions>
       <add input="{Redirects:{HTTP_HOST}{REQUEST_URI}}" pattern="(.+)" />
         </conditions>
         <action type="Redirect" url="{C:1}" appendQueryString="false" />
      </rule>

This now works fully.  However, for the points, can you tell me how I would make this rule work if the visitor put www. prefix on the requested URL?  i.e. www.mydomain1.com/book-event/

Surely I don't have to duplicate the entire list of keys but with www. prefixing them all?

Help appreciated.
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LVL 9

Expert Comment

by:tanujchandna
Comment Utility
Hi,

The following is the example of redirection from http to https and its working fine for me. Try with following code by changing the urls required by you and it should work fine for you.

<rewrite>
<rules>
<rule name="HTTP to HTTPS redirect" stopProcessing="true">
<match url="(.*)" />
<conditions>
<add input="{HTTPS}" pattern="off" ignoreCase="true" />
</conditions>
<action type="Redirect" redirectType="Found" url="https://{HTTP_HOST}/{R:1}" />
</rule>
</rules>
</rewrite>
0
 

Author Comment

by:jammy-d0dger
Comment Utility
Sorry, not sure I follow. How does this become relevant to my question about making redirects work for both http://www.mydomain1.com AND http://mydomain1.com
0
 

Author Closing Comment

by:jammy-d0dger
Comment Utility
No comments directly related to my question were offered.  Worked it out myself and posted code.
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