Pure PHP implementation of Levin protocol

Example

require 'vendor/autoload.php';

use Denpa\Levin;

$vars = [
    'network_id' => 'somenetwork',
];

Levin\connection($ip, $port, $vars)->connect(
    function ($bucket, $connection) {
        if ($bucket->isRequest('supportflags', 'timedsync', 'ping')) {
            // respond to supportflags, timedsync and ping requests
            // to keep the connection open
            $connection->write($bucket->response());
        }

        if ($bucket->isResponse('handshake')) {
            // send ping request to the server after
            // receiving handshake response
            $connection->write(Levin\request('ping'));
        }

        if ($bucket->isResponse('ping')) {
            // dump server response to the console
            var_dump($bucket->getPayload());

            // returning false closes connection
            return false;
        }
    }
);

Request Support

command	link	request	response
Handshake	p2p_protocol_defs.h#L177	✅	✅
TimedSync	p2p_protocol_defs.h#L239	✅	✅
Ping	p2p_protocol_defs.h#L297	✅	✅
StatInfo	p2p_protocol_defs.h#L348	❌	❌
NetworkState	p2p_protocol_defs.h#L382	❌	❌
PeerId	p2p_protocol_defs.h#L414	✅	✅
SupportFlags	p2p_protocol_defs.h#L437	✅	✅

Notification Support

command	link	request
NewBlock	cryptonote_protocol_defs.h#L126	✅
RequestGetObjects	cryptonote_protocol_defs.h#L163	❌
ResponseGetObjects	cryptonote_protocol_defs.h#L179	❌
RequestChain	cryptonote_protocol_defs.h#L217	✅
ResponseChainEntry	cryptonote_protocol_defs.h#L231	✅
NewFluffyBlock	cryptonote_protocol_defs.h#L254	✅
RequestFluffyMissingTx	cryptonote_protocol_defs.h#L273	❌

Exceptions

• Denpa\Levin\Exceptions\ConnectionException - thrown on connection errors.
• Denpa\Levin\Exceptions\EntryTooLargeException - thrown when type or packet size is too large.
• Denpa\Levin\Exceptions\SignatureMismatchException - thrown on section or bucket signature mismatches.
• Denpa\Levin\Exceptions\UnexpectedTypeException - thrown on unexpected or invalid type.
• Denpa\Levin\Exceptions\UnknownCommandException - thrown on unknown command.
• Denpa\Levin\Exceptions\UnpackException - thrown when unable to unpack binary data.

License

This product is distributed under the MIT license.

Credits

Loosely based on py-levin.

Donations

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