vb.org Archive - Custom error-handler based on vBulletin templates

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- - Custom error-handler based on vBulletin templates (https://vborg.vbsupport.ru/showthread.php?t=65013)

Custom error-handler based on vBulletin templates

What this hack does?
---------------------------

UPDATE: Improved instruction.txt, fixed for those who use external style sheets

This hack adds a custom error-handler to your site using the vBulletin template engine to display the appropriate errors (e.g. 404 File not Found, 403 Forbidden, etc).

Demo
-------
Go to my site and enter some non-existing url. E.g. Random 404 Error. Or try to access my /cgi-bin path to receive a 403 error.

What to do?
----------------
queries to run: 0
templates changed: 0
templates added: 1 (ERROR_SHELL)
files changed: 1 (.htaccess)
files added: 1 (error.php)

Time needed to install
----------------------------
< 5 mins

Ahhh, a new toy for me to play with. Thank you very much, sir. ;)

[high]* Boofo clicks the install button continuously![/high]

Nice work. I'll add to my install list :cool:.

I'm having a strange problem with my style background not showing as well as the alt1 and alt2 variables. :(

I can't get this to work. I know it has something to do with how I'm doing the htaccess file.

Same here. When I install it every page get's a 500 error. Everything is in my root folder, I commented out the chmod line but to no avail.

Quote:

Originally Posted by Boofo

I'm having a strange problem with my style background not showing as well as the alt1 and alt2 variables. :(

If the error.php file is accessed from my forums directory, it looks like it is supposed to. If it is accessed from my home page, that is where I have the problem with the background of my styles not showing and making the page look wierd. Anyone have any ideas how to fix this? ;)

You might want to take out custom code in that error.php and re-release it...

Also a side note to anybody installing it, if you haven't put absolute paths to your navbar links, you'll see they point to incorrect files.

Quote:

Originally Posted by Boofo

Sounds like it's looking in the wrong place for the css file. I think i had to hack my board to give it an absolute path for the css file...can't remember though, it was awhile ago. ;)

Quote:

Originally Posted by Dankinit

Sounds like it's looking in the wrong place for the css file. I think i had to hack my board to give it an absolute path for the css file...can't remember though, it was awhile ago. ;)

Where would I have to give the path for that at? Do you remember? ;)

What's wierd is that my home page doesn't have a problem with it.

Good hack, but my host already lets me make my own error pages so I could easily do this without the hack.

Great job though!

I don't know if it validates but placing

Code:

<base href="http://www.sportboard.de" />

above </header> makes all links have an absolut path :)

test.html goes to http://www.sportboard.de/test.html and even a relative link to a stylesheet should change.

Pure magic ;)

oooh now this is handy :) thnx very much :)

Ok, I updated the hack with improved instruction. Please download again.

@Boofo: Error.php is now copied to your forums path; please re-download the hack. I assume you store CSS stylesheets as files, this is why it didn't work correctly for you.

@Preech/FleaBag: Check the new instruction. Perhaps you need to ask your webhost for assistance.

@Dankinit: Ok, I moved the custom error handling specific to my site to /example/. I included it first place to help people further customizing their error responses.

Greets
Alex

Quote:

Originally Posted by AlexanderT

Didn't chnage anything. I still get the same thing on the home page. If I select NO for stylesheets as files, it works fine. But I like to have them as files. :(

Boofo did you read the new instruction? Earlier you said yourself that "if the error.php file is accessed from my forums directory, it looks like it is supposed to" ?!

Edit: Ahh I think i understand your problem now. I must think again if it is at all possible to support external style sheets like in your case then. Perhaps if you copy the style sheets to your root path, but that would be a pain. Lemme think about it.

Edit2: Could you add <base href="http://www.yoursite.com/yourforum/" /> to the <head> section of the ERROR_SHELL template and see if it does any difference?

Greets

Quote:

Originally Posted by AlexanderT

Edit2: Could you add <base href="http://www.yoursite.com/yourforum/"> to the <head> section of the ERROR_SHELL template and see if it does any difference?

Greets

That fixed it! Thank you, sir. ;)

Do I need to put a closing </base> anywhere with that?

Quote:

Originally Posted by Boofo

That fixed it! Thank you, sir. ;)
Do I need to put a closing </base> anywhere with that?

Cool. I have updated the instruction accordingly. <base> is an empty tag, or a standalone tag, that doesn't use a </base> endtag. The /> at the end is sufficient to make the code xhtml 1.0-valid.

Quote:

Originally Posted by Boofo

Where would I have to give the path for that at? Do you remember? ;)

This is very useful for anybody writing custom hacks outside of their vb3 base directory and storing css as file:

https://vborg.vbsupport.ru/showthread.php?t=63520

Quote:

Originally Posted by AlexanderT

Cool. I have updated the instruction accordingly. <base> is an empty tag, or a standalone tag, that doesn't use a </base> endtag. The /> at the end is sufficient to make the code xhtml 1.0-valid.

Nice to see my tip actually worked :)

Quote:

Originally Posted by MrNase

Nice to see my tip actually worked :)

Yup, merci for it :)

Wow, this is awesome. :D Saves me a LOT of work.

[high]* Synicide clicks install![/high]

Quote:

Originally Posted by Synicide

Wow, this is awesome. :D Saves me a LOT of work.

[high]* Synicide clicks install![/high]

I love the skin on your site. Did you do that? ;)

Quote:

Originally Posted by Boofo

I love the skin on your site. Did you do that? ;)

Yep, that's homemade. :D

Quote:

Originally Posted by Synicide

Yep, that's homemade. :D

Have you thought about releasing it at all? ;)

Quote:

Originally Posted by AlexanderT

Cool. I have updated the instruction accordingly. <base> is an empty tag, or a standalone tag, that doesn't use a </base> endtag. The /> at the end is sufficient to make the code xhtml 1.0-valid.

One useful bit of info :) try

Code:

<base href="$vboptions[bburl]" />

and it should work across all boards :) you could include that code in your template :)

Also a switch($_SERVER['REDIRECT_STATUS']) would probably be a nicer way to code this ... rather than all those else if's

Just a personal preference thing :)

[high]* Natch clicks install just the same :)
[/high]

Great idea!

Quote:

Originally Posted by Natch

One useful bit of info :) try

Code:

<base href="$vboptions[bburl]" />

The $vboptions[bburl] doesn't work for stylesheets as files. I just tested it. You have to have the absolute path for the home page to work right. ;)

How would you set up the switch code?

As I mentioned in the post above, this code can be more efficient (and easier to add new error codes) witha switch statement:

Find:

PHP Code:


		
			
if(isset($_SERVER['REDIRECT_STATUS']))

{

    if ($_SERVER['REDIRECT_STATUS']=="404") 

    {

        $error['title'] = "404 File Not Found";

        $error['description'] = "The web server cannot find the file you asked for. Check the URL to ensure that the path is correct.";

        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if you believe that the mistake is on our part.";

    }

    elseif ($_SERVER['REDIRECT_STATUS']=="403") {

        $error['title'] = "403 Forbidden";

        $error['description'] = "You don't have permission to access this document on this server.";

        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if you think that there is a mistake.";

    }

    elseif ($_SERVER['REDIRECT_STATUS']=="401") {

        $error['title'] = "401 Unauthorized";

        $error['description'] = "The URL you are requesting requires proper authentication.";

        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if you think that there is a mistake.";

    }

    elseif ($_SERVER['REDIRECT_STATUS']=="500") {

        $error['title'] = "500 Internal Server Error";

        $error['description'] = "We encountered an unexpected condition.";

        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us to report this problem.";

    }

    elseif ($_SERVER['REDIRECT_STATUS']=="503") {

        $error['title'] = "503 Service Unavailable";

        $error['description'] = "We are currently unable to handle your request due to a temporary overloading or maintenance of the server.";

        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if this problem persists.";

    }    

    else

    {

        $error['title'] = "Unknown Error: " . $_SERVER['REDIRECT_STATUS'];

        $error['description'] = "We are currently unable to handle this error.";

        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if this problem persists.";        

    }

}

else

{

        $error['title'] = "Unknown Error";

        $error['description'] = "We are currently unable to handle this error.";

        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if this problem persists.";        

}

Replace with:

PHP Code:


		
			
if(!isset($_SERVER['REDIRECT_STATUS']))

{

        $error['title'] = "Unknown Error";

        $error['description'] = "We are currently unable to handle this error.";

        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if this problem persists.";        

}

else switch($_SERVER['REDIRECT_STATUS'])

{

    case("404"):

        $error['title'] = "404 File Not Found";

        $error['description'] = "The web server cannot find the file you asked for. Check the URL to ensure that the path is correct.";

        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if you believe that the mistake is on our part.";

    break;

    case("403"):

        $error['title'] = "403 Forbidden";

        $error['description'] = "You don't have permission to access this document on this server.";

        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if you think that there is a mistake.";

    break;

    case("401"):

        $error['title'] = "401 Unauthorized";

        $error['description'] = "The URL you are requesting requires proper authentication.";

        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if you think that there is a mistake.";

    break;

    case("500"):

        $error['title'] = "500 Internal Server Error";

        $error['description'] = "We encountered an unexpected condition.";

        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us to report this problem.";

    break;

    case("503"):

        $error['title'] = "503 Service Unavailable";

        $error['description'] = "We are currently unable to handle your request due to a temporary overloading or maintenance of the server.";

        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if this problem persists.";

    break;

    default:

        $error['title'] = "Unknown Error: " . $_SERVER['REDIRECT_STATUS'];

        $error['description'] = "We are currently unable to handle this error.";

        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if this problem persists.";        

}

Also (to follow all those W3C tips about the TITLE tags) ...

In the ERROR_SHELL template, find:

HTML Code:

<title>$vboptions[bbtitle]</title>

Replace with:

HTML Code:

<title>$error[title] - $vboptions[bbtitle]</title>

UPDATED: thanks Boofo for the heads up about the missing break;

Quote:

Originally Posted by Boofo

The $vboptions[bburl] doesn't work for stylesheets as files. I just tested it. You have to have the absolute path for the home page to work right. ;)

You're right ... then you could use $vboptions[homeurl]/forums/ but that defeats the purpose of having one template for all ...

Quote:

Originally Posted by Boofo

How would you set up the switch code?

I knoew you would ask :D see above :)

I believe that Zachery has posted code that gives an absolute path to the link href statement to call stylesheets - that's why I didn't notice it not working ... it did for me :)

Witrh Zach's code, I don't need the Base code in the template anymore. Thank you, sir. ;)

Quote:

Originally Posted by Natch

As I mentioned in the post above, this code can be more efficient (and easier to add new error codes) witha switch statement:

Find:

PHP Code:


		
			
if(isset($_SERVER['REDIRECT_STATUS']))
{
    if ($_SERVER['REDIRECT_STATUS']=="404") 
    {
        $error['title'] = "404 File Not Found";
        $error['description'] = "The web server cannot find the file you asked for. Check the URL to ensure that the path is correct.";
        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if you believe that the mistake is on our part.";
    }
    elseif ($_SERVER['REDIRECT_STATUS']=="403") {
        $error['title'] = "403 Forbidden";
        $error['description'] = "You don't have permission to access this document on this server.";
        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if you think that there is a mistake.";
    }
    elseif ($_SERVER['REDIRECT_STATUS']=="401") {
        $error['title'] = "401 Unauthorized";
        $error['description'] = "The URL you are requesting requires proper authentication.";
        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if you think that there is a mistake.";
    }
    elseif ($_SERVER['REDIRECT_STATUS']=="500") {
        $error['title'] = "500 Internal Server Error";
        $error['description'] = "We encountered an unexpected condition.";
        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us to report this problem.";
    }
    elseif ($_SERVER['REDIRECT_STATUS']=="503") {
        $error['title'] = "503 Service Unavailable";
        $error['description'] = "We are currently unable to handle your request due to a temporary overloading or maintenance of the server.";
        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if this problem persists.";
    }    
    else
    {
        $error['title'] = "Unknown Error: " . $_SERVER['REDIRECT_STATUS'];
        $error['description'] = "We are currently unable to handle this error.";
        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if this problem persists.";        
    }
}
else
{
        $error['title'] = "Unknown Error";
        $error['description'] = "We are currently unable to handle this error.";
        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if this problem persists.";        
}

Replace with:

PHP Code:


		
			
if(!isset($_SERVER['REDIRECT_STATUS']))
{
        $error['title'] = "Unknown Error";
        $error['description'] = "We are currently unable to handle this error.";
        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if this problem persists.";        
}
else switch($_SERVER['REDIRECT_STATUS'])
{
    case("404"):
        $error['title'] = "404 File Not Found";
        $error['description'] = "The web server cannot find the file you asked for. Check the URL to ensure that the path is correct.";
        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if you believe that the mistake is on our part.";
    break;
    case("403"):
        $error['title'] = "403 Forbidden";
        $error['description'] = "You don't have permission to access this document on this server.";
        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if you think that there is a mistake.";
    break;
    case("401"):
        $error['title'] = "401 Unauthorized";
        $error['description'] = "The URL you are requesting requires proper authentication.";
        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if you think that there is a mistake.";
    break;
    case("500"):
        $error['title'] = "500 Internal Server Error";
        $error['description'] = "We encountered an unexpected condition.";
        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us to report this problem.";
    break;
    case("503"):
        $error['title'] = "503 Service Unavailable";
        $error['description'] = "We are currently unable to handle your request due to a temporary overloading or maintenance of the server.";
        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if this problem persists.";
    default:
        $error['title'] = "Unknown Error: " . $_SERVER['REDIRECT_STATUS'];
        $error['description'] = "We are currently unable to handle this error.";
        $error['contact'] = "Please <a href=\"$vboptions[bburl]/$vboptions[contactuslink]\">contact</a> us if this problem persists.";        
}

Also (to follow all those W3C tips about the TITLE tags) ...

In the ERROR_SHELL template, find:

HTML Code:

<title>$vboptions[bbtitle]</title>

Replace with:

HTML Code:

<title>$error[title] - $vboptions[bbtitle]</title>

Shouldn't there be a break before the default line?

Where I can add the 'AllowOverride FileInfo' entry?

Problem already resolved, thanks

Quote:

Originally Posted by Boofo

Have you thought about releasing it at all? ;)

I dunno dude, I kind of like my one of a kind styles. But hey, if I ever feel like coming up with a more generic version of it... I guess I could release it, you think it'd be a good idea?

Quote:

Originally Posted by Synicide

I dunno dude, I kind of like my one of a kind styles. But hey, if I ever feel like coming up with a more generic version of it... I guess I could release it, you think it'd be a good idea?

I think that would be an excellent idea. ;)

i wasn't using the sendmessage.php, so the link was messed up for contact. that should be an option.

also, it's funny, when you do click the contact us link, it takes u to the contact page and after you send it, it takes u back to the 404 page. ;)

Quote:

Originally Posted by Boofo

Shouldn't there be a break before the default line?

Yup - I''ll modify my post to reflect that :) (good debugging)

Quote:

Originally Posted by Natch

Yup - I''ll modify my post to reflect that :) (good debugging)

Always willing to help a friend out. ;)

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