| Info |
|---|
You can reference here for a Site aware exception handling in Magnolia CMS which is updated for Magnolia CMS 5.7.+ |
The 404 Handler
In some projects you may want to have the possibility to define your own Error-Pages (as 404 etc.).
With magnolia it is either possible to define this pages internally in the website tree, or externally.
Since magnolia 3.5 (magnolia internal error page)
...
If you are using Tomcat/Jboss you can do so by simple edit the magnoliaPublic web.xml (inside
webapps\magnoliaPublic\WEB-INF\web.xml
...
)
...
and
...
add
...
the
...
following
...
section:
| Code Block | ||||
|---|---|---|---|---|
| ||||
{code} <error-page> <error-code>404</error-code> <location>/errorPages/404.html</location> </error-page> {code} After your application server restarted, the error page will now come out of magnolia (with all it's benefits). If you have an older version of magnolia or, for whatever reasons, want to have your error page outside of magnolia you can do this as well following the procedure below. h2. Before magnolia 3.5 (external/redirected error page) For this example let's assume that your magnolia site is under /index/ and that you have created your own 404.html error page under that..ie {code} /index/404.html {code} Edit the magnoliaPublic {{web.xml}} (inside {{ |
When using a single installation with multiple domains, host based virtual URI mapping might be useful:
| Code Block | ||||
|---|---|---|---|---|
| ||||
<!--
The error handler for HTTP 404 Not Found, and alike.
The page "/my-virtual-uri-mapping/error-404" does not exist, but
is used in some URL rewriting configured like below:
- The rewriting uses "ends-with" mappings, so "magnolia-cms.de" also
matches "www.magnolia-cms.de". And simply using ".de" matches both
domains as well.
- When there are multiple matches, the longest match is selected.
- If there's no match, then the mapping in "toUri" is used.
- Using "forward:" ensures that Tomcat preserves the actual HTTP
error code, making browsers and search engines understand that the
page is actually an error page, even though a normal Magnolia page
is shown to the visitor.
Configuration
+ modules
:
+ adminInterface
:
+ virtualURIMapping
:
+ my-error-forbidden
+ hosts
- 1 .de=forward:/de/some/magnolia/forbidden/page
- 2 .com=forward:/en/some/other/forbidden/page
- class info.magnolia.cms.beans.config.HostBasedVirtualURIMapping
- fromURI /my-virtual-uri-mapping/error-403
- toURI forward:/en/some/default/magnolia/forbidden/page
+ my-error-notfound
+ hosts
- 1 .de=forward:/de/some/magnolia/notfound/page
- 2 .com=forward:/en/some/other/notfound/page
- class info.magnolia.cms.beans.config.HostBasedVirtualURIMapping
- fromURI /my-virtual-uri-mapping/error-404
- toURI forward:/en/some/default/magnolia/notfound/page
-->
<error-page>
<error-code>403</error-code>
<location>/my-virtual-uri-mapping/error-403</location>
</error-page>
<error-page>
<error-code>404</error-code>
<location>/my-virtual-uri-mapping/error-404</location>
</error-page>
|
A 500 Internal Server Error might best be served without relying on Magnolia. Hence:
| Code Block | ||||
|---|---|---|---|---|
| ||||
<error-page>
<error-code>500</error-code>
<!--
Magnolia's default "/docroot" is known in server, filters, cms, bypasses.
When using another path, be sure to add a bypass for that path as well.
-->
<location>/docroot/error-500.html</location>
</error-page>
|
After your application server restarted, the error page will now come out of magnolia (with all it's benefits).
If you have an older version of magnolia or, for whatever reasons, want to have your error page outside of magnolia you can do this as well following the procedure below.
Before magnolia 3.5 (external/redirected error page)
For this example let's assume that your magnolia site is under /index/
and that you have created your own 404.html error page under that..ie
| Code Block |
|---|
/index/404.html
|
Edit the magnoliaPublic web.xml (inside webapps\magnoliaPublic\WEB-INF\web.xml
...
)
...
and
...
add
...
the
...
following
...
section:
| Code Block |
|---|
} <error-page> <error-code>404</error-code> <location>/admintemplates/404.jsp</location> </error-page> {code} |
Now,
...
create
...
a
...
404.jsp
...
file
...
inside
...
your
...
\webapps\magnoliaPublic\admintemplates
...
directory
...
that
...
contains
...
the
...
following
...
jsp
...
code
| Code Block |
|---|
} <% response.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY); String contextName = request.getContextPath(); String newLocn = contextName + "/index/404.html"; response.setHeader("Location",newLocn); %> {code} |
What
...
will
...
happen
...
is
...
that
...
if
...
a
...
user
...
requests
...
a
...
page
...
that
...
doesn't
...
exist
...
inside
...
your
...
magnoliaPublic
...
context
...
then
...
Tomcat
...
will
...
redirect
...
the
...
user
...
to
...
the
...
/admintemplates/404.jsp
...
page
...
which
...
then
...
redirects
...
to
...
your
...
/index/404.html
...
page.
...
Why
...
must
...
you
...
do
...
it
...
this
...
way??
...
Well,
...
your
...
web.xml
...
has
...
to
...
point
...
to
...
a
...
file
...
that
...
actually
...
exists
...
somewhere
...
in
...
your
...
webapps
...
directory,
...
not
...
to
...
a
...
'virtual'
...
file
...
in
...
your
...
Magnolia
...
repository.
...
If
...
you
...
doubt
...
this,
...
try
...
replacing
...
/admintemplates/404.jsp
...
with
...
/magnoliaPublic/index/404.html
...
and
...
see
...
what
...
happens.
...
We
...
point
...
the
...
web.xml
...
to
...
a
...
'real'
...
file
...
and
...
then
...
have
...
that
...
real
...
file
...
perform
...
a
...
redirect
...
to
...
your
...
magnolia
...
generated
...
404.html
...
file.
| Note |
|---|
| }
Please note here, that when you are redirecting the error page, the page header received by the request will no longer by 404 but 302 instead. This may lead to some issues with search engines, like with for example. {note} h4. When using this with Magnolia |
When using this with Magnolia 3.5.x
...
Now
...
to
...
make
...
this
...
work
...
with
...
Magnolia
...
v3.5.x
...
you
...
need
...
to
...
define
...
a
...
bypass
...
for
...
a
...
custom
...
jsp
...
page
...
created
...
above.
| Warning | ||||
|---|---|---|---|---|
| =
| |||
| }
When configuring bypass all the values are applied *immediately *. In other words, your filter will be applied before it is configured, resulting in a completely broken configuration. Hence you must configure this node elsewhere in the tree and only when fully configured move it to ( {{
) Read what you can do [ | Repair broken bypass configuration ] {warning} Go to the configuration menu and create new contentNode anywhere *but not at* {{ |
Go to the configuration menu and create new contentNode anywhere but not atserver/filters/bypasses
...
and
...
call
...
it
...
404
...
for
...
this
...
node
...
create
...
dataNode
...
class
...
and
...
set
...
it
...
to
...
info.magnolia.voting.voters.URIStartsWithVoter
...
and
...
dataNode
...
pattern
...
with
...
value
...
pointing
...
to
...
your
...
404.jsp
...
(i.e.
...
/admintemplates/404.jsp
...
in
...
the
...
case
...
of
...
example
...
above).
...
Once
...
configured,
...
move
...
your
...
node
...
to
...
server/filters/bypasses
...
.
In its previous incarnation on JspWiki, this page was last edited on Mar 31, 2007 10:07:56
...
PM
...
by
...
Magnolia
...
Other
...
known
...
authors
...
include
...
:
...
- RamonBuckland
- Jgibbens
- BorisKraft