Virtual URLs without define_atbegin

The following is an alternative to using define_atbegin in a LassoStartup folder for virtual URLs on Apache 2.2.

In this method because all virtual URLs get rewritten, response_filepath and response_path return the location of the URL handler, not the virtual URL. Therefore a custom tag to replace these tags is required.

Huge thanks to Bil Corry for his help and amazing skills.

Virual Host Directive for Apache 2.2

----- BEGIN VIRTUAL HOST DIRECTIVES for APACHE 2.2 -----

<ifmodule mod_rewrite.c="">
# Turn mod_rewrite on.
    RewriteEngine on

# Honor the server-wide rewrite rules if any exist.
    RewriteOptions inherit

# Debug rewrite rules for use in development only.
# RewriteLogLevel can be 1-9.
# Configure the path to the rewrite log file.
# Do NOT enable in production or your log file will get huge quickly.
#   RewriteLog /private/var/log/apache2/rewrite.log
#   RewriteLogLevel 9

# Lasso gets all virtual files and directories
# that don&#39;t have an extension between 1 and 8 characters long
    RewriteCond %{REQUEST_URI}  !^.*\.[^.]{1,8}$
    RewriteCond %{DOCUMENT_ROOT}%{REQUEST_FILENAME} !-f
    RewriteCond %{DOCUMENT_ROOT}%{REQUEST_FILENAME} !-d
    RewriteRule  (.*) /_urlhandler.lasso [L,NS,PT,E=X-VIRTUAL-PATH:$1]
    RequestHeader unset X-VIRTUAL-PATH
    RequestHeader set X-VIRTUAL-PATH %{X-VIRTUAL-PATH}e env=X-VIRTUAL-PATH
</ifmodule>

----- END VIRTUAL HOST DIRECTIVES for APACHE 2.2 -----

Custom Tag to replace response_filepath and response_path

----- BEGIN Custom Tag to replace response_filepath and response_path -----
[
// Overload response_filepath and response_path.
// Place in LassoStartup for the site.

define_tag('filepath',-namespace='response',-priority='high',-criteria=(params->size == 0));
    local('vpath') = string;
    protect;
        #vpath = string_findregexp(client_headers,-find='(?im)^X-VIRTUAL-PATH:\\s*(.*)$')->get(2)->trim&;
    /protect;
    if(#vpath->size);
        return(#vpath);
    else;
        return(response_filepath(-original));
    /if;
/define_tag;

global('response_path') = tags_find('response_path');
define_tag('path',-namespace='response',-priority='replace');
    local('vpath') = string;
    local('vfilepath') = string;
    protect;
        #vpath = string_findregexp(client_headers,-find='(?im)^X-VIRTUAL-PATH:\\s*(.*)$')->get(2)->trim&;
        #vfilepath = response_filepath->split('/')->last;
        #vpath->removetrailing(#vfilepath);
    /protect;
    if(#vpath->size);
        return(#vpath);
    else;
        return(global('response_path')->run);
    /if;
/define_tag;
]
----- END Custom Tag to replace response_filepath and response_path -----

----- BEGIN /_urlhandler.lasso -----
[
// Optionally add logic to determine what gets processed by your framework.
content_body = include('/myframework.lasso');
content_body -> trim;
abort;
]
----- END /_urlhandler.lasso -----

Author: Steve Piercy
Created: 23 Jan 2010
Last Modified: 20 Jun 2012