issue sending messages with more than 65,535 characters

[rbro]

I am running into an issue when trying to send a message body with more than 65,535 characters.

When running the below send.php, listener.php responds with "length: 0". If you change $content to be 65535 characters, then it responds correctly with "length: 65535".

send.php:

<?php
require('vendor/autoload.php');

use hollodotme\FastCGI\Client;
use hollodotme\FastCGI\Requests\PostRequest;
use hollodotme\FastCGI\SocketConnections\NetworkSocket;

$client = new Client(new NetworkSocket('127.0.0.1', 9000));

$content = str_repeat('a', 65536);

$request = new PostRequest(__DIR__.'/listener.php', $content);

$response = $client->sendRequest($request);

echo $response->getBody();
exit;

listener.php:

<?php
echo 'length: '.strlen(file_get_contents('php://input'));

[hollodotme]

@rbro after debugging and researching for hours, I finally found the cause:

The FastCGI specification says:

contentData: Between 0 and 65535 bytes of data, interpreted according to the record type.

Until now, only one content packet is sent to php-fpm for a request, that's why it is limited to 65535 characters/bytes. This issue seems to be in the client implementation from the beginning (in the original one and mine - for about 7 years).

I already have tested a working solution by sending chunks of content packets. Let me finalize it and bump a new bugfix release.

Thanks for this, you're obviously the first hitting this "edge case".

[rbro]

@hollodotme thanks so much for the quick fix. It works great!