# RouteBasedOnHostname.ini
# 
# Route based on hostname.
#
# Combines the use of server variables with the detection of
# files and directories, to do routing of requests.
#
#
# remember to rename this file to IsapiRewrite4.ini ,
# or copy this content to a file named IsapiRewrite4.ini
# before using it!
#
# Thu, 13 Jul 2006  15:11
# 

RewriteLog  c:\temp\iirfLog.out
RewriteLogLevel 5


# The next three non-blank and non-comment lines are a stanza.
# Two RewriteCond statements and an attached RewriteRule.

# This RewriteCond statement says - execute the attached RewriteRule
# if the SERVER_NAME used in the URL matches the specified pattern.
# In this case,  "www.chiesa.net" will match, and "images.chiesa.net" 
# will match, but www.chiesa.com will not match.
RewriteCond %{SERVER_NAME}          ([^\.]+)\.chiesa\.net$                [I]

# This RewriteCond evaluates to true only if the specified directory
# does not exist.  In this case the pattern to match for the directory is
# c:\Inetpub\wwwroot\XXXXX  where XXXX is replaced by the most-recently 
# matched pattern.  In this case it is the enclosing parens in the above
# RewriteCond, which captures the host name.  For example, "www" or "images".
# As a result the RewriteConf evaluates to true when c:\Inetpub\wwwroot\www or
# c:\Inetpub\wwwroot\images IS NOT a directory.
RewriteCond c:\Inetpub\wwwroot\%1   !-d

# If both the above statements are true (they are joined by a logical AND), 
# then the Rule is executed.  In this case it redirects to a URL "NotFound.htm."
# The flags attached to this rule say, U = set the HTTP_URL_REWRITE variable, 
# I = case insensitive, and L = make this the last rule to process, if it 
# evaluates to true.  So, no more mapping of URLs after this. 
RewriteRule ^(.*)$                  /NotFound.htm                         [U,I,L]


# This stanza of rules is the converse.   It rewrites if the directory
# in question DOES exist.  
RewriteCond %{SERVER_NAME}          ([^\.]+)\.chiesa\.net$                [I]
RewriteCond c:\Inetpub\wwwroot\%1   -d
RewriteRule ^(.*)$                  /common/driver.aspx?url=$1&host=%1      [U,I,L]