Airship\Engine\Continuum\Installer::verifyMerkleRoot PHP Méthode

    public function verifyMerkleRoot(InstallFile $file) : bool
    {
        $debugArgs = ['supplier' => $this->supplier->getName(), 'name' => $this->package];
        $db = \Airship\get_database();
        $merkle = $db->row('SELECT * FROM airship_tree_updates WHERE merkleroot = ?', $file->getMerkleRoot());
        if (empty($merkle)) {
            $this->log('Merkle root not found in tree', LogLevel::DEBUG, $debugArgs);
            // Not found in Keyggdrasil
            return false;
        }
        $data = \Airship\parseJSON($merkle['data'], true);
        $instType = \strtolower($this->type);
        $keyggdrasilType = \strtolower($data['pkg_type']);
        if (!\hash_equals($instType, $keyggdrasilType)) {
            $this->log('Wrong package type', LogLevel::DEBUG, $debugArgs);
            // Wrong package type
            return false;
        }
        if (!\hash_equals($this->supplier->getName(), $data['supplier'])) {
            $this->log('Wrong supplier', LogLevel::DEBUG, $debugArgs);
            // Wrong supplier
            return false;
        }
        if (!\hash_equals($this->package, $data['name'])) {
            $this->log('Wrong package', LogLevel::DEBUG, $debugArgs);
            // Wrong package
            return false;
        }
        // Finally, we verify that the checksum matches the entry in our Merkle tree:
        return \hash_equals($file->getHash(), $data['checksum']);
    }