sunlabs.brazil.handler

Class VirtualHostHandler

public class VirtualHostHandler extends Object implements Handler

Handler for managing virtual hosts using the same server configuration. This prefixes the host name (from the http "host" header, with the port portion removed) onto the url and passes the request along. If no host is provided, the host "default" is used instead.
If hosts require their own server configurations, use the {@link MultiHostHandler} instead.

Configuration parameters:

maproot
If set upon server startup, this handler changes the "root" property instead of the "url" property, by appending the "host" onto the document root, instead of prepending the "host" to the url.
[prefix].[host].
If the "mapping" property exists that matches the incoming "host" name, then that value is used instead of [host] to rewrite the "url" or "root".
default
If set, then all hosts for which no mappings are defined are mapped to the value of this property.
levels
If defined, then for the purpose of host matching, only "levels" of hostnames are considered. If levels=3, then for host: a.b.c.d.e, the host is considered to be "c.d.e". This enables support for wildcard-host matching within a virtual domain.
addlevel=true|false
If "true", "levels" is specified, and the number of tokens (levels) in the hostname exceeds "levels", then all the extra tokens in the hostname are prepended to the URL as initial directories: If "levels" is 3, and "addlevel=true" then: host http://a.b.c.d.e/foo.html will be mapped to http://c.d.e/b/a/foo.html, and the file "foo.html" should be at [docroot]/c.d.e/b/a/foo.html].

If "addlevel=false", then http://a.b.c.d.e/foo.html will be mapped to http://c.d.e/foo.html, and the file "foo.html" should be at [docroot]/c.d.e/foo.html. In this case, the "a.b" part of the host is available as part of the host property, which retains its original value.

With no configuration options, each virtual host document root is in a subdirectory whose name matches the host (e.g. www.foo.com). The "maproot" property changes how virtual roots are distingished: by URL or by document root. The "mapping" properties are used to choose a name for the subdirectory that differs from the virtual hostname. Finally, if "default" is set, then virtual hosts with no subdirectory are all shunted into the subdirectory specified.

Version: 2.1, 02/10/01

Author: Stephen Uhler

Method Summary
booleaninit(Server server, String prefix)
booleanrespond(Request request)
Either look for host header, tack on front of url, or modify the "root" property

Method Detail

init

public boolean init(Server server, String prefix)

respond

public boolean respond(Request request)
Either look for host header, tack on front of url, or modify the "root" property