238 lines
8.5 KiB
PHP
Executable File
238 lines
8.5 KiB
PHP
Executable File
<?php
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class Account
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{
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// inserts the account in the DB and updates the public key if empty
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public function add($public_key, $block)
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{
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global $db;
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$id = $this->get_address($public_key);
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$bind = [":id" => $id, ":public_key" => $public_key, ":block" => $block, ":public_key2" => $public_key];
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$db->run(
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"INSERT INTO accounts SET id=:id, public_key=:public_key, block=:block, balance=0 ON DUPLICATE KEY UPDATE public_key=if(public_key='',:public_key2,public_key)",
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$bind
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);
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}
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// inserts just the account without public key
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public function add_id($id, $block)
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{
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global $db;
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$bind = [":id" => $id, ":block" => $block];
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$db->run("INSERT ignore INTO accounts SET id=:id, public_key='', block=:block, balance=0", $bind);
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}
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// generates Account's address from the public key
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public function get_address($hash)
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{
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//broken base58 addresses, which are block winners, missing the first 0 bytes from the address.
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if ($hash == 'PZ8Tyr4Nx8MHsRAGMpZmZ6TWY63dXWSCwCpspGFGQSaF9yVGLamBgymdf8M7FafghmP3oPzQb3W4PZsZApVa41uQrrHRVBH5p9bdoz7c6XeRQHK2TkzWR45e') {
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return '22SoB29oyq2JhMxtBbesL7JioEYytyC6VeFmzvBH6fRQrueSvyZfEXR5oR7ajSQ9mLERn6JKU85EAbVDNChke32';
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} elseif ($hash == 'PZ8Tyr4Nx8MHsRAGMpZmZ6TWY63dXWSCzbRyyz5oDNDKhk5jyjg4caRjkbqegMZMrUkuBjVMuYcVfPyc3aKuLmPHS4QEDjCrNGks7Z5oPxwv4yXSv7WJnkbL') {
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return 'AoFnv3SLujrJSa2J7FDTADGD7Eb9kv3KtNAp7YVYQEUPcLE6cC6nLvvhVqcVnRLYF5BFF38C1DyunUtmfJBhyU';
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} elseif ($hash == 'PZ8Tyr4Nx8MHsRAGMpZmZ6TWY63dXWSCyradtFFJoaYB4QdcXyBGSXjiASMMnofsT4f5ZNaxTnNDJt91ubemn3LzgKrfQh8CBpqaphkVNoRLub2ctdMnrzG1') {
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return 'RncXQuc7S7aWkvTUJSHEFvYoV3ntAf7bfxEHjSiZNBvQV37MzZtg44L7GAV7szZ3uV8qWqikBewa3piZMqzBqm';
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} elseif ($hash == 'PZ8Tyr4Nx8MHsRAGMpZmZ6TWY63dXWSCyjKMBY4ihhJ2G25EVezg7KnoCBVbhdvWfqzNA4LC5R7wgu3VNfJgvqkCq9sKKZcCoCpX6Qr9cN882MoXsfGTvZoj') {
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return 'Rq53oLzpCrb4BdJZ1jqQ2zsixV2ukxVdM4H9uvUhCGJCz1q2wagvuXV4hC6UVwK7HqAt1FenukzhVXgzyG1y32';
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}
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// hashes 9 times in sha512 (binary) and encodes in base58
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for ($i = 0; $i < 9;
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$i++) {
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$hash = hash('sha512', $hash, true);
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}
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return base58_encode($hash);
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}
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// checks the ecdsa secp256k1 signature for a specific public key
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public function check_signature($data, $signature, $public_key)
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{
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return ec_verify($data, $signature, $public_key);
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}
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// generates a new account and a public/private key pair
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public function generate_account()
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{
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// using secp256k1 curve for ECDSA
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$args = [
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"curve_name" => "secp256k1",
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"private_key_type" => OPENSSL_KEYTYPE_EC,
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];
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// generates a new key pair
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$key1 = openssl_pkey_new($args);
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// exports the private key encoded as PEM
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openssl_pkey_export($key1, $pvkey);
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// converts the PEM to a base58 format
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$private_key = pem2coin($pvkey);
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// exports the private key encoded as PEM
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$pub = openssl_pkey_get_details($key1);
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// converts the PEM to a base58 format
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$public_key = pem2coin($pub['key']);
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// generates the account's address based on the public key
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$address = $this->get_address($public_key);
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return ["address" => $address, "public_key" => $public_key, "private_key" => $private_key];
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}
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// check the validity of a base58 encoded key. At the moment, it checks only the characters to be base58.
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public function valid_key($id)
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{
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$chars = str_split("123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz");
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for ($i = 0; $i < strlen($id);
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$i++) {
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if (!in_array($id[$i], $chars)) {
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return false;
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}
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}
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return true;
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}
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// check the validity of an address. At the moment, it checks only the characters to be base58 and the length to be >=70 and <=128.
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public function valid($id)
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{
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if (strlen($id) < 70 || strlen($id) > 128) {
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return false;
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}
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$chars = str_split("123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz");
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for ($i = 0; $i < strlen($id);
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$i++) {
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if (!in_array($id[$i], $chars)) {
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return false;
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}
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}
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return true;
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}
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// returns the current account balance
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public function balance($id)
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{
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global $db;
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$res = $db->single("SELECT balance FROM accounts WHERE id=:id", [":id" => $id]);
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if ($res === false) {
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$res = "0.00000000";
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}
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return number_format($res, 8, ".", "");
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}
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// returns the account balance - any pending debits from the mempool
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public function pending_balance($id)
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{
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global $db;
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$res = $db->single("SELECT balance FROM accounts WHERE id=:id", [":id" => $id]);
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if ($res === false) {
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$res = "0.00000000";
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}
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// if the original balance is 0, no mempool transactions are possible
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if ($res == "0.00000000") {
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return $res;
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}
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$mem = $db->single("SELECT SUM(val+fee) FROM mempool WHERE src=:id", [":id" => $id]);
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$rez = $res - $mem;
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return number_format($rez, 8, ".", "");
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}
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// returns all the transactions of a specific address
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public function get_transactions($id, $limit = 100)
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{
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global $db;
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$block = new Block();
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$current = $block->current();
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$public_key = $this->public_key($id);
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$limit = intval($limit);
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if ($limit > 100 || $limit < 1) {
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$limit = 100;
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}
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$res = $db->run(
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"SELECT * FROM transactions WHERE dst=:dst or public_key=:src ORDER by height DESC LIMIT :limit",
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[":src" => $public_key, ":dst" => $id, ":limit" => $limit]
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);
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$transactions = [];
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foreach ($res as $x) {
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$trans = [
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"block" => $x['block'],
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"height" => $x['height'],
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"id" => $x['id'],
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"dst" => $x['dst'],
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"val" => $x['val'],
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"fee" => $x['fee'],
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"signature" => $x['signature'],
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"message" => $x['message'],
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"version" => $x['version'],
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"date" => $x['date'],
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"public_key" => $x['public_key'],
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];
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$trans['src'] = $this->get_address($x['public_key']);
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$trans['confirmations'] = $current['height'] - $x['height'];
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// version 0 -> reward transaction, version 1 -> normal transaction
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if ($x['version'] == 0) {
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$trans['type'] = "mining";
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} elseif ($x['version'] == 1) {
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if ($x['dst'] == $id) {
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$trans['type'] = "credit";
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} else {
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$trans['type'] = "debit";
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}
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} else {
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$trans['type'] = "other";
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}
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ksort($trans);
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$transactions[] = $trans;
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}
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return $transactions;
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}
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// returns the transactions from the mempool
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public function get_mempool_transactions($id)
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{
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global $db;
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$transactions = [];
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$res = $db->run(
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"SELECT * FROM mempool WHERE src=:src ORDER by height DESC LIMIT 100",
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[":src" => $id, ":dst" => $id]
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);
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foreach ($res as $x) {
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$trans = [
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"block" => $x['block'],
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"height" => $x['height'],
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"id" => $x['id'],
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"src" => $x['src'],
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"dst" => $x['dst'],
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"val" => $x['val'],
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"fee" => $x['fee'],
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"signature" => $x['signature'],
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"message" => $x['message'],
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"version" => $x['version'],
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"date" => $x['date'],
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"public_key" => $x['public_key'],
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];
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$trans['type'] = "mempool";
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// they are unconfirmed, so they will have -1 confirmations.
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$trans['confirmations'] = -1;
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ksort($trans);
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$transactions[] = $trans;
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}
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return $transactions;
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}
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// returns the public key for a specific account
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public function public_key($id)
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{
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global $db;
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$res = $db->single("SELECT public_key FROM accounts WHERE id=:id", [":id" => $id]);
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return $res;
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}
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}
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