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daftspunk/HdWallet.php

Created April 14, 2018 02:27
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  1. daftspunk created this gist Apr 14, 2018.
    105 changes: 105 additions & 0 deletions HdWallet.php
    View file
    Original file line number Diff line number Diff line change
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    <?php

    use BitWasp\Bitcoin\Bitcoin;
    use BitWasp\Bitcoin\Key\Deterministic\HierarchicalKeyFactory;
    use BitWasp\Bitcoin\Key\Deterministic\HierarchicalKeySequence;
    use BitWasp\Bitcoin\Key\Deterministic\MultisigHD;
    use BitWasp\Bitcoin\Network\NetworkFactory;
    use Exception;

    /*
    * Require:
    *
    * "bitwasp/bitcoin": "^0.0.34"
    *
    * Usage:
    *
    * $wallet = new HdWallet;
    * $wallet->setXpub('...');
    * return $wallet->addressFromXpub('0/1');
    */
    class HdWallet
    {
    protected $network = null;

    protected $xpub = null;

    protected $multisigXpubs = null;

    public function __construct($network = 'bitcoin')
    {
    $this->network = NetworkFactory::$network();
    }

    public function setXpub($xpub)
    {
    $this->xpub = $xpub;
    }

    public function setMultisigXpubs($xpubs)
    {
    $this->multisigXpubs = $xpubs;
    }

    public function addressArrayFromXpub($change = 0, $from = 0, $count = 1)
    {
    if ($this->xpub === '') {
    throw new Exception("XPUB key is not present!");
    }

    $results = [];

    $key = HierarchicalKeyFactory::fromExtended($this->xpub, $this->network);

    $paths = [];

    for ($k = 0; $k < $count; $k++){
    $paths[] = $change.'/'.($from + $k);
    }

    foreach ($paths as $path) {
    $childKey = $key->derivePath($path);

    $pubKey = $childKey->getPublicKey();

    $results[] = $pubKey->getAddress()->getAddress();
    }

    return $results;
    }

    public function addressFromXpub($path = '0/0')
    {
    if ($this->xpub === '') {
    throw new Exception("XPUB key is not present!");
    }

    $key = HierarchicalKeyFactory::fromExtended($this->xpub, $this->network);

    $childKey = $key->derivePath($path);

    $pubKey = $childKey->getPublicKey();

    return $pubKey->getAddress()->getAddress();
    }

    public function multisigAddressFromXpub($m, $path = '0/0')
    {
    if (count($this->multisigXpubs) < 2) {
    throw new Exception("XPUB keys are not present!");
    }

    $keys = [];

    foreach ($this->multisigXpubs as $xpub) {
    $keys[] = HierarchicalKeyFactory::fromExtended($xpub, $this->network);
    }

    $sequences = new HierarchicalKeySequence();
    $hd = new MultisigHD($m, 'm', $keys, $sequences, TRUE);

    $childKey = $hd->derivePath($path);

    return $childKey->getAddress()->getAddress();
    }
    }