107 lines
3.4 KiB
PHP
107 lines
3.4 KiB
PHP
<?php
|
|
function artembc_createbc($filename, $namebc, $data=[]) {
|
|
$temp=[[
|
|
"id"=>0,
|
|
"time"=>time(),
|
|
"data"=>$data,
|
|
"transaction"=>[],
|
|
"prevhash"=>"ZeroBlock"
|
|
]];
|
|
$temp[0]["data"]["namebc"]=$namebc;
|
|
$temp[0]["hash"]=hash("sha256", json_encode($temp));
|
|
return artembc_save($filename, $temp);
|
|
}
|
|
function artembc_addtransaction($filename, &$transaction, $data) {
|
|
$bc=artembc_load($filename);
|
|
$temp=count($transaction);
|
|
$transaction[]=[
|
|
"id"=>count($transaction),
|
|
"idblock"=>count($bc),
|
|
"time"=>time(),
|
|
"data"=>$data
|
|
];
|
|
$transaction[$temp]["hash"]=hash("sha256", json_encode($transaction[$temp]));
|
|
return true;
|
|
}
|
|
function artembc_initblock($filename, &$transaction, $data=[]) {
|
|
$bc=artembc_load($filename);
|
|
$temp=count($bc);
|
|
for($i = 0, $size = count($transaction), $correct=true; $i < $size; ++$i) {
|
|
$block=$transaction[$i];
|
|
$hash=hash("sha256", json_encode([
|
|
"id"=>$block["id"],
|
|
"idblock"=>$block["idblock"],
|
|
"time"=>$block["time"],
|
|
"data"=>$block["data"]
|
|
]));
|
|
if ($block["idblock"] != $temp and $hash != $block["hash"]) {
|
|
$correct=false;
|
|
break;
|
|
};
|
|
};
|
|
if ($correct) {
|
|
$bc[]=[
|
|
"id"=>$temp,
|
|
"time"=>time(),
|
|
"data"=>$data,
|
|
"transaction"=>$transaction,
|
|
"prevhash"=>$bc[$temp-1]["hash"]
|
|
];
|
|
};
|
|
$bc[$temp]["hash"]=hash("sha256", json_encode($bc[$temp]));
|
|
artembc_save($filename, $bc);
|
|
return $correct;
|
|
}
|
|
function artembc_checkbc($filename) {
|
|
$bc=artembc_load($filename);
|
|
$temp=count($bc);
|
|
for ($i = 0, $size = count($bc), $correct2=true; $i < $size; ++$i) {
|
|
$transaction=$bc[$i];
|
|
for($i1 = 0, $size = count($transaction), $correct=true; $i1 < $size; ++$i1) {
|
|
if (count($transaction["transaction"])>0){
|
|
$block=$transaction["transaction"][$i1];
|
|
$hash=hash("sha256", json_encode([
|
|
"id"=>$block["id"],
|
|
"idblock"=>$block["idblock"],
|
|
"time"=>$block["time"],
|
|
"data"=>$block["data"]
|
|
]));
|
|
if ($block["idblock"] != $temp-1 or $hash != $block["hash"]) {
|
|
$correct=false;
|
|
break;
|
|
};
|
|
};
|
|
};
|
|
$hash=hash("sha256", json_encode([
|
|
"id"=>$transaction["id"],
|
|
"time"=>$transaction["time"],
|
|
"data"=>$transaction["data"],
|
|
"transaction"=>$transaction["transaction"],
|
|
"prevhash"=>$transaction["prevhash"]
|
|
]));
|
|
if (/*$hash != $transaction["hash"] or */($transaction["prevhash"] != $bc[$temp-1]["hash"] and $i != 0)) {
|
|
$correct2 = [false, $i];
|
|
break;
|
|
};
|
|
};
|
|
return [$correct, $correct2];
|
|
}
|
|
function artembc_getblock($filename, $id) {
|
|
$temp=artembc_load($filename);
|
|
return $temp[$id];
|
|
}
|
|
function artembc_getbc($filename) {
|
|
return artembc_load($filename);
|
|
}
|
|
function artembc_getnamebc($filename) {
|
|
$bc=artembc_load($filename);
|
|
return $bc[0]["data"]["namebc"];
|
|
}
|
|
function artembc_save($filename, $data) {
|
|
return file_put_contents($filename, json_encode($data));
|
|
}
|
|
function artembc_load($filename) {
|
|
return json_decode(file_get_contents($filename), true);
|
|
}
|
|
?>
|