I have installed apache2 on my ubuntu machine. As I need to work with subdomains I created a proper entry in sites-available which looks like this:
<VirtualHost *:80>
ServerName xxx.localhost
DocumentRoot /var/www/
</VirtualHost>
I also enabled mod_rewrite (and changed "AllowOverride All" in my sites-available/default file) but other than that nothing else was changed.
My .htaccess file does work, and I wanted to handle some error codes. Doing so with 404 worked pretty well, but for some reason other errors don't seem to work. I'm mostly interested in handling error 400:
ErrorDocument 400 /400.php
ErrorDocument 404 /404.php
Is there anything else I should look at? I couldn't seem to find any place where 404 are allowed while other error codes aren't.
If the php is returning the 400 error, then php should generate the error document.
Use something like:
if( $someError )
{
http_response_code(400);
include("{$_SERVER['DOCUMENT_ROOT']}/400.php");
exit();
}
From the Apache documentation:
Although most error messages can be overriden, there are certain circumstances where the internal messages are used regardless of the setting of ErrorDocument. In particular, if a malformed request is detected, normal request processing will be immediately halted and the internal error message returned. This is necessary to guard against security problems caused by bad requests.
Try adding it directly in the httpd.conf and restart Apache.
Related
I recently came across the AllowEncodedSlashes Apache directive:
https://intranet.csc.liv.ac.uk/manual/mod/core.html#AllowEncodedSlashes
If I hit a URL like this: www.domain.com/my/page/%2F/etcetera, Apache shows its default 404 error page:
However, I would like to return a custom 404 error page but how can I do it within my .htaccess? This doesn't work:
ErrorDocument 404 /entrypoint.php
I know I can do it if I have access to the server's httpd.conf configuration file (I tested locally). But what if I do not have access to the configuration on a remote site? Is there a way?
Thank you for the attention.
I need to disable Apache 401 error message or bypass it completely , in case of errors only back end application error codes should be displayed.
Thanks
Rakesh
Add following to your .htaccess file (works if AllowOverride allows it).
ErrorDocument 401 /URL/TO/YOUR/BACKEND/RESPONSE
Custom error documents are configured using the ErrorDocument directive, which may be used in global, virtualhost, or directory context.
More info about Apache ErrorDocument
I want to use local URL (relative path) to show my custom 404 error message and it doesn't seem to be working as expected. As apache documentation stated here :
The syntax of the ErrorDocument directive is:
ErrorDocument <3-digit-code> <action>
where the action will be treated as:
A local URL to redirect to (if the action begins with a "/").
An external URL to redirect to (if the action is a valid URL).
Text to be displayed (if none of the above). The text must be wrapped in quotes (") if it consists of more than one word.
Methods 2 and 3 are working correctly. For testing purpose imagine a folder named test with 3 files.
index.php: main page
404.php: a custom 404 page
.htaccess:
RewriteEngine On
ErrorDocument 404 /404.php
Now accessing this URL http://localhost/test/blah-blah does not show my 404.php page instead a default Not Found page is displayed with this message:
The requested URL /tests/test-htaccess/asdasd was not found on this server.
Additionally, a 404 Not Found error was encountered while trying to use an
ErrorDocument to handle the request.
Any idea how to fix this?
You probably found the solution to your problem since the time you asked, but for anyone having the same kind of issue, I would say the problem is that you are running your site with localhost.
The message says that Apache encountered a 404 error when trying to get the file specified for Errordocument 404, so it doesn't see
/404.php
I suggest you create a fake domain in your hosts file and set up a vhost with it.
Hosts on OSX :
sudo nano /etc/hosts
Hosts on Windows, Right-click this file to edit in administrator mode :
C:\WINDOWS\System32\Drivers\Etc\Hosts
and enter something like this:
127.0.0.1 myfakedomain.com
To set up virtual hosts, you must uncomment the call to httpd-vhosts.conf in httpd.conf (near the end, using MAMP in this case)
# Virtual hosts
Include /Applications/MAMP/conf/apache/extra/httpd-vhosts.conf
but the location of this file depends of the stack you are using (Wamp, Mamp, Xampp, etc) so search with the keyword "Virtual host" in its documentation.
Then you will be able to run your site using
myfakedomain.com/
in your browser and 404 errors should be handled the right way.
I wrote on my .htaccess an if to check if the *mod_rewrite* is installed and throw error 500 if not.
ErrorDocument 500 /500.html
<IfModule !mod_rewrite.c>
Error "mod_rewrite not installed"
</IfModule>
If i get an 500 error by it will show the 500.html. But if it gets that same error from the Error directive, it will show the default error page instead. Why ? How do i fix it ?
Well, after thinking a lot about it and reading a bit, i believe that the Error function simply makes the .htaccess parsing to be cancelled - and the error to be logged - and then throw an 500 error from the apache config that has been parsed before this one (for example, an .htaccess from another folder over this one or the httpd.conf from apache)
I have a number of ErrorDocuments setup in my .htaccess file for errors such as 404, 401, 403 etc which all redirect to my error page but the ErrorDocument set for a 500 error is never displayed when PHP reports a 500. The 500 code is sent to the browser and the output is blank. Is there something special I need to do to enable 500 error documents for use with PHP?
My directives look like this:
ErrorDocument 401 /errorpage.php?error=401
ErrorDocument 403 /errorpage.php?error=403
ErrorDocument 404 /errorpage.php?error=404
ErrorDocument 500 /errorpage.php?error=500
I've looked through the php.ini and can't see anything that would obviously override the Apache settings and there are no ErrorDocument directives in my httpd.conf either. Anywhere else I should be looking?
Thanks in advance.
See this answer to a very similar question. Basically, PHP isn't hardly ever going to trigger a 500.
You may need to add the ErrorDocument declaration earlier in the Apache conf chain. If you add this to a vhost conf it may not be called.
I happened to encounter the same issue while working with codeigniter and Imagick. imagick was setting a 500 HTTP error when something went wrong and in that case Codeigniter's custom 500 message was not displayed.
I resolved this by adding try-catch to all Imagick functions.Check that where from the 500 issue is arising and then add a try-catch there.As for
ErrorDocument 500 /errorpage.php?error=500
,I read loads online about the same where some people claim that this solved their similar issue, others say that it wouldnt help as Apache has handed over the control to PHP.Maybe some php code is setting Headers to 500 and that would probably lead to the browser displaying its custom 500 error message.
I don't believe Apache will let you run PHP files for 500 errors because the error page could generate an error. Try rendering out your 500 error to an HTML file and point your directives at that.