Handling file uploads that exceed PHP's post_max_size?

[Jeffrey Zhao]

If I upload a file whose size exceeds post_max_size in php.ini, I get this error:
 

Internal Server Error

 

Fatal error: POST Content-Length of 18535303 bytes exceeds the limit of 8388608 bytes

From what I've googled, this is usually a warning instead of a fatal error, and can be handled with one of the solutions from this StackOverflow question. However, it seems that F3 terminates on receiving too large of a file immediately before any PHP code can be executed.

Is there a different way to handle large files in F3? Thanks.

[ved]

As that SO thread already kind of states. Change the following values on your php.ini:

upload_max_filesize = 20M
post_max_size = 20M

If you don't have access to your php.ini and are using apache, try the following on your .htaccess:

php_value upload_max_filesize 20M
php_value post_max_size 20M

[Jeffrey Zhao]

However, if I upload an even larger file, F3 will still terminate and
throw a 500 internal server error. What I'm asking is, is there a way
to show my own error to the user before the 500 is thrown?

On Mon, Jan 9, 2017 at 5:31 PM, ved via Fat-Free Framework
<f3-framework+APn2wQdk8BzurMhBnm1...@googlegroups.com>
wrote:

> As that SO thread already kind of states. Change the following values on
> your php.ini:
>
> upload_max_filesize = 20M
> post_max_size = 20M
>
> If you don't have access to your php.ini and are using apache, try the
> following on your .htaccess:
>

> php_value upload_max_filesize 10M
> php_value post_max_size 10M

>
>
>
>
> On Monday, January 9, 2017 at 7:42:26 AM UTC, Jeffrey Zhao wrote:
>>
>> If I upload a file whose size exceeds post_max_size in php.ini, I get this
>> error:
>>
>>>
>>> Internal Server Error
>>
>>
>>>
>>> Fatal error: POST Content-Length of 18535303 bytes exceeds the limit of
>>> 8388608 bytes
>>
>>
>> From what I've googled, this is usually a warning instead of a fatal
>> error, and can be handled with one of the solutions from this StackOverflow
>> question. However, it seems that F3 terminates on receiving too large of a
>> file immediately before any PHP code can be executed.
>>
>> Is there a different way to handle large files in F3? Thanks.
>

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[Jeffrey Zhao]

However, if I upload an even larger file, F3 will still terminate and
throw a 500 internal server error. What I'm asking is, is there a way
to show my own error to the user before the 500 is thrown?

[ved]

That's maybe because the upload time is exceeding the max_execution_time parameter of php.ini which is usually 30s by default.

But there are a few other things that can be causing those issues (fastcgi paramters, webserver config, etc) 

Anyway, you can override F3's errors. See: https://fatfreeframework.com/3.6/framework-variables#AbouttheF3ErrorHandler

[Jeffrey Zhao]

Thanks!

[ikkez]

I think this can be solved with a custom error handler. Just have a look for the ERROR.text inside it, and if you find something about post_max_size, then don't halt execution, add a silent error and continue

$f3->set("ONERROR", function($f3, $params) {
  if (is_int(strpos($f3->{'ERROR.text'},'post_max_size') {
    // Don't stop here:
    $f3->HALT = false;
    return true;

  } else {
    // Process more serious problems:
    echo "Error: ".$f3->get('ERROR.text')."\n";
    $f3->HALT = true;
    return false;
  }
});