ISAPI Rewrite

2017-01-02T07:11:54Z

Calebd: /* Simple Redirects and Rewrites */

__FORCETOC__

= ISAPI_Rewrites and Redirects Version 3 =

ISAPI_Rewrite Version 3 is a powerful URL manipulation engine based on regular expressions. Hostek.com has lots of experience with Isapi_Rewrite Hosting. Here are a couple of examples of using Isapi_Rewrite Version 3:

<b>NOTE:</b> Place the rewrite rules in a file named .htaccess and place it at the web root (ie, /wwwroot folder)<br />If you do not have a .htaccess file created already then use a text editor like Notpad and save the file as a .htaccess or use the File Manager in the hosting control panel to create the .htaccess file on the server.

== Simple Redirects and Rewrites ==

==== Redirecting to a different domain ====
If you need to redirect your website to another website

<pre style="white-space: pre-wrap;
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RewriteEngine On

RewriteCond %{HTTP_HOST} ^(www\.)?domain\.com$ [NC]
RewriteRule ^(.*)$ http://www.newdomain.com/$1 [QSA,R=301]
</pre>

==== Rewrite a Folder to another Folder ====

<pre style="white-space: pre-wrap;
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RewriteEngine on
RewriteBase /

RewriteRule ^oldfolder$ /correctfolder [NC,R=301,L]
</pre>

==== Redirect File Names ====
To have your index.htm page auto redirect to index.asp user this example

<pre style="white-space: pre-wrap;
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RewriteEngine on

RewriteRule index.htm index.asp [R=301,L]
</pre>

==== Subfolder Rewrite ====
To redirect your domain to a subfolder of that domain example: www.domain.com to www.domain.com/folder

<pre style="white-space: pre-wrap;
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RewriteEngine On

# Exclude requests already going to /subfolder to avoid an infinite loop
RewriteRule ^subfolder.*$ - [NC,L]

# Rewrite normal requests to /subfolder
RewriteRule ^(.*)$ /subfolder/$1 [L]
</pre>

==== non-www. to www. Redirects ====

Redirecting non-www version to www., example domain.com to www.domain.com

<pre style="white-space: pre-wrap;
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RewriteEngine on

RewriteCond %{HTTP_HOST} !^$
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteCond %{HTTPS}s ^on(s)|
RewriteRule ^ http%1://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
</pre>

==== www. to non-www. Redirects ====

Redirecting www version to non-www., example www.domain.com to domain.com

<pre style="white-space: pre-wrap;
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white-space: -o-pre-wrap;
word-wrap: break-word">
RewriteEngine On
RewriteCond %{HTTP_HOST} ^www.domain.com
RewriteRule ^ http://domain.com%{REQUEST_URI} [R=301,L]
</pre>

==== URL Rewrite ====

Suppose you have URL like www.example.com/foo.asp?a=A&b=B&c=C and you want to access it as www.example.com/foo.asp/a/A/b/B/c/

<pre style="white-space: pre-wrap;
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RewriteEngine on
RewriteRule ^(.*?\.asp)/([^/]*)/([^/]*)(/.+)? $1$4?$2=$3 [NC,LP,QSA]
</pre>

==== WordPress Permalinks ====

WordPress Permalinks using mod_rewrite are for Linux, but ISAPI_Rewrite does offer the equivalent. If you want to have index.php not show in the url try using these in your .htaccess file.

If your WordPress site is in the wwwroot folder.

<pre style="white-space: pre-wrap;
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# BEGIN WordPress

#Options +Followsymlinks
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [NC,L]

# END WordPress
</pre>

If your WordPress site is in a subfolder.

<pre style="white-space: pre-wrap;
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# BEGIN WordPress

#Options +Followsymlinks
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /subfolder/index.php [NC,L]

# END WordPress
</pre>

==== Redirect wwwroot/public_html to subfolder ====

Allows you load your domain from a subfolder instead of the wwwroot/public_html folder.

<pre style="white-space: pre-wrap;
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RewriteEngine on
RewriteCond %{HTTP_HOST} ^(www.)?example.com$
RewriteCond %{REQUEST_URI} !^/subfolder/
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /subfolder/$1
RewriteCond %{HTTP_HOST} ^(www.)?example.com$
RewriteRule ^(/)?$ subfolder/index.html [L]
</pre>

== HTTP to HTTPS SSL Rewrites ==

==== SSL ====
Suppose you have URL like http://shop.example.com and you want your visitors to be redirected to https://shop.example.com

Here is example how to force SSL for certain folder. Simply put following rules into the .htaccess file in this folder:

<pre style="white-space: pre-wrap;
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RewriteEngine on

#Fix missing trailing slash char on folders
RewriteRule ^([^.?]+[^.?/])$ $1/ [R,L]

#Redirect non-HTTPS to HTTPS
RewriteEngine on

RewriteCond %{SERVER_PORT} !443
RewriteCond %{HTTP_HOST} ^(www\.)?(.+)$
RewriteRule ^(.*)$ https://%2/$1 [R,L]
</pre>

====Non-www, non-HTTPS to www, HTTPS redirects====
RewriteEngine on
RewriteCond %{SERVER_PORT} !443
RewriteCond %{HTTP_HOST} !^$
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteCond %{HTTPS} ^on(s)|
RewriteRule ^(.*)$ https://www.%{HTTP_HOST}/$1 [R,L]

==== Shared SSL ====

<pre style="white-space: pre-wrap;
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RewriteEngine on

# handle non-www HTTPS redirects. Consecutive conditions are implicitly ANDed together.
RewriteCond %{SERVER_PORT} ^443$
RewriteCond %{HTTP_HOST} ^(?!www\.).*mywebsite\.com$
RedirectRule ^/(.*)$ https://secure#.ezhostingserver.com/mywebsite-com/$1 [R=301]

# All requests arriving to this point either use www for the hostname, or use
# HTTP for the protocol.

# handle non-www non-HTTPS redirects
RewriteCond %{HTTP_HOST} ^(?!www\.).*mywebsite\.com$
RedirectRule ^/(.*)$ http://www.mywebsite.com/$1 [R=301]
</pre>

== Site Crawlers ==

Example on how to prevent certain spiders from crawling your site.

<pre style="white-space: pre-wrap;
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RewriteEngine on

RewriteCond %{HTTP_USER_AGENT} ^Baiduspider.*$
RewriteRule .* /block.htm

RewriteCond %{HTTP_USER_AGENT} ^Yandex.*$
RewriteRule .* /block.htm
</pre>

== Wild-Card Subdomains & Variables Rewrites ==

Here is an example to show how to get the variables from positions 1 and 2 without it mattering how many items are in the URL. In other words, a good example for a rewrite rule for optional parameters.

==== Variable URLs ====
Let's say you want to have a URL display like: http://your_domain.com/some-folder/34-77-some-key-word.html
But you want that to really process a query like:http://your_domain.com/folder/search.asp?country=34&city=77

<pre style="white-space: pre-wrap;
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RewriteEngine on
RewriteRule ^some-folder/([^-]+)-([^-]+)-.*$ /folder/search.asp?country=$1&city=$2
</pre>

==== Wild-Card Subdomains ====

Rewrite all wild-card sub-domain requests to a folder without affecting "your_domain.com" or "www.your_domain.com"

<pre style="white-space: pre-wrap;
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# Ignore requests that are already rewritten
RewriteRule ^subdomainfolder/.*$ - [NC,L]

# Rewrite all requests to non-www sub-domains to /subdomainfolder
RewriteCond %{HTTP_HOST} !^(www\.)?your_domain\.com$ [NC]
RewriteRule ^(.*)$ /subdomainfolder/$1 [L]
</pre>

For more Examples and other uses please visit [http://www.helicontech.com/isapi_rewrite/doc/examples.htm#SEF Helicon Tech]

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