163 lines
6.6 KiB
PHP
Executable File
163 lines
6.6 KiB
PHP
Executable File
<?php
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class Account {
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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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global $db;
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$id=$this->get_address($public_key);
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$bind=array(":id"=>$id, ":public_key"=>$public_key, ":block"=>$block,":public_key2"=>$public_key );
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$db->run("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)",$bind);
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}
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// inserts just the account without public key
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public function add_id($id, $block){
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global $db;
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$bind=array(":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($hash){
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//broken base58 addresses, which are block winners, missing the first 0 bytes from the address.
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if($hash=='PZ8Tyr4Nx8MHsRAGMpZmZ6TWY63dXWSCwCpspGFGQSaF9yVGLamBgymdf8M7FafghmP3oPzQb3W4PZsZApVa41uQrrHRVBH5p9bdoz7c6XeRQHK2TkzWR45e') return '22SoB29oyq2JhMxtBbesL7JioEYytyC6VeFmzvBH6fRQrueSvyZfEXR5oR7ajSQ9mLERn6JKU85EAbVDNChke32';
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elseif($hash=='PZ8Tyr4Nx8MHsRAGMpZmZ6TWY63dXWSCzbRyyz5oDNDKhk5jyjg4caRjkbqegMZMrUkuBjVMuYcVfPyc3aKuLmPHS4QEDjCrNGks7Z5oPxwv4yXSv7WJnkbL') return 'AoFnv3SLujrJSa2J7FDTADGD7Eb9kv3KtNAp7YVYQEUPcLE6cC6nLvvhVqcVnRLYF5BFF38C1DyunUtmfJBhyU';
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elseif($hash=='PZ8Tyr4Nx8MHsRAGMpZmZ6TWY63dXWSCyradtFFJoaYB4QdcXyBGSXjiASMMnofsT4f5ZNaxTnNDJt91ubemn3LzgKrfQh8CBpqaphkVNoRLub2ctdMnrzG1') return 'RncXQuc7S7aWkvTUJSHEFvYoV3ntAf7bfxEHjSiZNBvQV37MzZtg44L7GAV7szZ3uV8qWqikBewa3piZMqzBqm';
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elseif($hash=='PZ8Tyr4Nx8MHsRAGMpZmZ6TWY63dXWSCyjKMBY4ihhJ2G25EVezg7KnoCBVbhdvWfqzNA4LC5R7wgu3VNfJgvqkCq9sKKZcCoCpX6Qr9cN882MoXsfGTvZoj') return 'Rq53oLzpCrb4BdJZ1jqQ2zsixV2ukxVdM4H9uvUhCGJCz1q2wagvuXV4hC6UVwK7HqAt1FenukzhVXgzyG1y32';
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// hashes 9 times in sha512 (binary) and encodes in base58
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for($i=0;$i<9;$i++) $hash=hash('sha512',$hash, true);
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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, $public_key){
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return ec_verify($data ,$signature, $public_key);
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}
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// generates a new account and a public/private key pair
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public function generate_account(){
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// using secp256k1 curve for ECDSA
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$args = array(
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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 array("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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$chars = str_split("123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz");
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for($i=0;$i<strlen($id);$i++) if(!in_array($id[$i],$chars)) return false;
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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($id){
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if(strlen($id)<70||strlen($id)>128) return false;
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$chars = str_split("123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz");
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for($i=0;$i<strlen($id);$i++) if(!in_array($id[$i],$chars)) return false;
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return true;
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}
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// returns the current account balance
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public function balance($id){
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global $db;
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$res=$db->single("SELECT balance FROM accounts WHERE id=:id",array(":id"=>$id));
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if($res===false) $res="0.00000000";
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return number_format($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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global $db;
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$res=$db->single("SELECT balance FROM accounts WHERE id=:id",array(":id"=>$id));
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if($res===false) $res="0.00000000";
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// if the original balance is 0, no mempool transactions are possible
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if($res=="0.00000000") return $res;
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$mem=$db->single("SELECT SUM(val+fee) FROM mempool WHERE src=:id",array(":id"=>$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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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) $limit=100;
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$res=$db->run("SELECT * FROM transactions WHERE dst=:dst or public_key=:src ORDER by height DESC LIMIT :limit",array(":src"=>$public_key, ":dst"=>$id, ":limit"=>$limit));
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$transactions=array();
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foreach($res as $x){
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$trans=array("block"=>$x['block'],"height"=>$x['height'], "id"=>$x['id'],"dst"=>$x['dst'],"val"=>$x['val'],"fee"=>$x['fee'],"signature"=>$x['signature'], "message"=>$x['message'],"version"=>$x['version'],"date"=>$x['date'], "public_key"=>$x['public_key']);
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$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) $trans['type']="mining";
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elseif($x['version']==1){
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if($x['dst']==$id) $trans['type']="credit";
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else $trans['type']="debit";
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} else {
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$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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global $db;
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$transactions=array();
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$res=$db->run("SELECT * FROM mempool WHERE src=:src ORDER by height DESC LIMIT 100",array(":src"=>$id, ":dst"=>$id));
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foreach($res as $x){
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$trans=array("block"=>$x['block'],"height"=>$x['height'], "id"=>$x['id'],"src"=>$x['src'],"dst"=>$x['dst'],"val"=>$x['val'],"fee"=>$x['fee'],"signature"=>$x['signature'], "message"=>$x['message'],"version"=>$x['version'],"date"=>$x['date'], "public_key"=>$x['public_key']);
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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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global $db;
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$res=$db->single("SELECT public_key FROM accounts WHERE id=:id",array(":id"=>$id));
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return $res;
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}
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}
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?>
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