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ajax.php
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ajax.php
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<?php
define("IN_SCRIPT", true);
require_once 'conf/config.php';
require_once 'libs/functions.php';
require_once 'libs/easybitcoin.php';
//init url path prefix
if ($config["url_rewrite"]) {
// $name = isset($_GET['name']) ? $_GET['name'] : "";
// list($url_param_get_action, $url_param_get_value) = explode("/", $name);
$url_path["height"] = $config["explorer_path"] . 'height/';
$url_path["blockhash"] = $config["explorer_path"] . 'blockhash/';
$url_path["tx"] = $config["explorer_path"] . 'tx/';
$url_path["block"] = $config["explorer_path"] . 'block/';
$url_path["search"] = $config["explorer_path"] . 'search/';
} else {
// $url_param_get_action = isset($_GET['action']) ? $_GET['action'] : "";
// $url_param_get_value = isset($_GET['v']) ? $_GET['v'] : "";
$url_path["height"] = $config["explorer_path"] . '?action=height&v=';
$url_path["blockhash"] = $config["explorer_path"] . '?action=blockhash&v=';
$url_path["tx"] = $config["explorer_path"] . '?action=tx&v=';
$url_path["block"] = $config["explorer_path"] . '?action=block&v=';
$url_path["search"] = $config["explorer_path"] . '?action=search&v=';
}
$bitcoinrpc = new Bitcoin($config["rpc_user"], $config["rpc_password"], $config["rpc_host"], $config["rpc_port"]);
$action = isset($_POST['action']) ? $_POST['action'] : "";
switch ($action) {
case "get_nextdiff":
$last_block_height = $bitcoinrpc->getblockcount();
if ($bitcoinrpc->status !== 200 && $bitcoinrpc->error) {
$response = array();
$response['s'] = 0;
$response['e'] = $bitcoinrpc->error;
exit(json_encode($response));
}
$first_block_height = $last_block_height - $config["nTargetTimespan"] / $config["nTargetSpacing"];
$last_block_hash = $bitcoinrpc->getblockhash($last_block_height);
if ($bitcoinrpc->status !== 200 && $bitcoinrpc->error) {
$response = array();
$response['s'] = 0;
$response['e'] = $bitcoinrpc->error;
exit(json_encode($response));
}
$first_block_hash = $bitcoinrpc->getblockhash($first_block_height);
if ($bitcoinrpc->status !== 200 && $bitcoinrpc->error) {
$response = array();
$response['s'] = 0;
$response['e'] = $bitcoinrpc->error;
exit(json_encode($response));
}
$last_block = $bitcoinrpc->getblock($last_block_hash);
if ($bitcoinrpc->status !== 200 && $bitcoinrpc->error) {
$response = array();
$response['s'] = 0;
$response['e'] = $bitcoinrpc->error;
exit(json_encode($response));
}
$first_block = $bitcoinrpc->getblock($first_block_hash);
if ($bitcoinrpc->status !== 200 && $bitcoinrpc->error) {
$response = array();
$response['s'] = 0;
$response['e'] = $bitcoinrpc->error;
exit(json_encode($response));
}
$nActualTimespan = $last_block["time"] - $first_block["time"];
if ($nActualTimespan < $config["nTargetTimespan"] / 4) {
$nActualTimespan = $config["nTargetTimespan"] / 4;
}
if ($nActualTimespan > $config["nTargetTimespan"] * 4) {
$nActualTimespan = $config["nTargetTimespan"] * 4;
}
$bnNew = $last_block["difficulty"];
$bnNew /= $nActualTimespan;
$bnNew *= $config["nTargetTimespan"];
$response = array();
$response['s'] = 1;
$response['d'] = $bnNew;
// $response['n'] = $nActualTimespan;
// $response['l'] = $last_block;
// $response['f'] = $first_block;
// $response['lt'] = gmdate($config["date_format"], $last_block["time"]);
// $response['ft'] = gmdate($config["date_format"], $first_block["time"]);
exit(json_encode($response));
break;
case "block":
$height = (int) $url_param_get_value;
if ($height < 0) {
send404();
}
$blockhash = $bitcoinrpc->getblockhash($height);
if ($bitcoinrpc->status !== 200 && $bitcoinrpc->response['error']['code'] == -8) {
send404();
}
$block = $bitcoinrpc->getblock($blockhash);
if ($bitcoinrpc->status !== 200 && $bitcoinrpc->response['error']['code'] == -5) {
send404();
}
$output = get_output_from_block($block);
$header = loadfile("templates/header.html");
$body = loadfile("templates/block-body.html");
$footer = loadfile("templates/footer.html");
$html = $header . $body . $footer;
$html = html_replace_common($html);
$html = html_replace($html, $output);
echo clean_html($html);
break;
case "blockhash":
$blockhash = $url_param_get_value;
if (!$blockhash || !preg_match('/^[0-9a-f]{64}$/i', $blockhash)) {
send404();
}
$block = $bitcoinrpc->getblock($blockhash);
if ($bitcoinrpc->status !== 200 && $bitcoinrpc->response['error']['code'] == -5) {
send404();
}
$output = get_output_from_block($block);
$header = loadfile("templates/header.html");
$body = loadfile("templates/block-body.html");
$footer = loadfile("templates/footer.html");
$html = $header . $body . $footer;
$html = html_replace_common($html);
$html = html_replace($html, $output);
echo clean_html($html);
break;
case "tx":
$tx = $url_param_get_value;
if (!$tx || !preg_match('/^[0-9a-f]{64}$/i', $tx)) {
send404();
}
$rawtransaction = $bitcoinrpc->getrawtransaction($tx, 1);
// echo json_encode($bitcoinrpc);
// exit;
if ($bitcoinrpc->status !== 200 && $bitcoinrpc->response['error']['code'] == -5) {
send404();
}
if ($bitcoinrpc->status !== 200 && $bitcoinrpc->error !== '') {
exit('failed to connect - node not reachable, or user/pass incorrect');
}
$output['transaction_detail_tbody'] .= "<tr><th class=\"text-end\" style=\"width:30%\">txid</th><td class=\"text-start\">" . $rawtransaction["txid"] . "</td></tr>";
$output['transaction_detail_tbody'] .= "<tr><th class=\"text-end\">Block Hash</th><td class=\"text-start\">" . '<a class="text-info" href="' . $url_path["blockhash"] . $rawtransaction["blockhash"] . '">' . $rawtransaction["blockhash"] . "</a></td></tr>";
$output['transaction_detail_tbody'] .= "<tr><th class=\"text-end\">Time</th><td class=\"text-start\">" . gmdate($config["date_format"], $rawtransaction["time"]) . " UTC</td></tr>";
$output['transaction_detail_tbody'] .= "<tr><th class=\"text-end\">Version</th><td class=\"text-start\">" . $rawtransaction["version"] . "</td></tr>";
$output['transaction_detail_tbody'] .= "<tr><th class=\"text-end\">Confirmations</th><td class=\"text-start\">" . $rawtransaction["confirmations"] . "</td></tr>";
$output['tx_list_tbody'] .= '<tr class="text-start">';
$output['tx_list_tbody'] .= '<td>';
if (count($rawtransaction['vin']) > 0) {
foreach ($rawtransaction['vin'] as $key => $vin) {
if (isset($vin['coinbase'])) {
$output['tx_list_tbody'] .= 'coinbase:<br>' . $vin["coinbase"];
} else {
if ($vin['vout'] > 0) {
$output['tx_list_tbody'] .= 'txid: <a class="text-info" href="' . $url_path["tx"] . $vin["txid"] . '">' . $vin["txid"] . '</a><br>';
} else {
$output['tx_list_tbody'] .= 'txid: ' . $vin["txid"] . '<br>';
}
$output['tx_list_tbody'] .= 'vout: ' . $vin['vout'] . '<br><br>';
}
}
}
$output['tx_list_tbody'] .= '</td>';
$output['tx_list_tbody'] .= '<td>';
if (count($rawtransaction['vout']) > 0) {
foreach ($rawtransaction['vout'] as $vout) {
if ($vout['value'] > 0.0) {
if (count($vout['scriptPubKey']['addresses']) > 0) {
foreach ($vout['scriptPubKey']["addresses"] as $address) {
$output['tx_list_tbody'] .= $address . '<br>';
}
}
$output['tx_list_tbody'] .= trim_dotzero($vout['value']) . ' ' . $config["symbol"] . '<br><br>';
}
}
}
$output['tx_list_tbody'] .= '</td>';
$output['tx_list_tbody'] .= '</tr>';
$output["title"] = "Transaction Detail " . $tx . " - ";
$output["description"] = "This transaction's txid is " . $rawtransaction["txid"] . ". It was made transaction at " . gmdate($config["date_format"], $rawtransaction["time"]) . " UTC. And this transaction belongs to the block hash " . $rawtransaction["blockhash"] . ".";
// echo json_encode($output);
// exit;
$header = loadfile("templates/header.html");
$body = loadfile("templates/transaction-body.html");
$footer = loadfile("templates/footer.html");
$html = $header . $body . $footer;
$html = html_replace_common($html);
$html = html_replace($html, $output);
echo clean_html($html);
break;
case "search":
$search = $url_param_get_value;
if (preg_match('/^[0-9]{1,6}$/i', $search)) {
$output["search_result"] = 'Search Block with Height<br><a class="text-info" href="' . $url_path["block"] . $search . '">' . $search . '</a>';
} else if (preg_match('/^[0-9a-f]{64}$/i', $search)) {
$output["search_result"] = 'Search Block with Hash<br><a class="text-info" href="' . $url_path["blockhash"] . $search . '">' . $search . '</a>';
$output["search_result"] .= '<br><br>';
$output["search_result"] .= 'Search txid<br><a class="text-info" href="' . $url_path["tx"] . $search . '">' . $search . '</a>';
} else {
$output["search_result"] = 'Search for some valid data';
}
$output["title"] = "Search result for " . $search . " - ";
$output["description"] = "Search result for " . $search;
$header = loadfile("templates/header.html");
$body = loadfile("templates/search-body.html");
$footer = loadfile("templates/footer.html");
$html = $header . $body . $footer;
$html = html_replace_common($html);
$html = html_replace($html, $output);
echo clean_html($html);
break;
default:
send404();
break;
}
function get_output_from_block($block)
{
global $config, $url_path, $bitcoinrpc;
$output['block_detail_tbody'] .= "<tr><th class=\"text-end\" style=\"width:30%\">Height</th><td class=\"text-start\">" . $block["height"] . "</td></tr>";
$output['block_detail_tbody'] .= "<tr><th class=\"text-end\">Hash</th><td class=\"text-start\">" . $block["hash"] . "</td></tr>";
$output['block_detail_tbody'] .= "<tr><th class=\"text-end\">Time</th><td class=\"text-start\">" . gmdate($config["date_format"], $block["time"]) . " UTC</td></tr>";
$output['block_detail_tbody'] .= "<tr><th class=\"text-end\">Version</th><td class=\"text-start\">" . $block["version"] . "</td></tr>";
$output['block_detail_tbody'] .= "<tr><th class=\"text-end\">Size</th><td class=\"text-start\">" . short_number($block["size"], 1024, 3, " ") . "B" . "</td></tr>";
$output['block_detail_tbody'] .= "<tr><th class=\"text-end\">Confirmations</th><td class=\"text-start\">" . $block["confirmations"] . "</td></tr>";
$output['block_detail_tbody'] .= "<tr><th class=\"text-end\">Difficulty</th><td class=\"text-start\">" . short_number($block["difficulty"], 1000, 3, "") . "</td></tr>";
$output['block_detail_tbody'] .= "<tr><th class=\"text-end\">Bits</th><td class=\"text-start\">" . $block["bits"] . "</td></tr>";
$output['block_detail_tbody'] .= "<tr><th class=\"text-end\">Nonce</th><td class=\"text-start\">" . $block["nonce"] . "</td></tr>";
$output['block_detail_tbody'] .= "<tr><th class=\"text-end\">Chainwork</th><td class=\"text-start\">" . $block["chainwork"] . "</td></tr>";
$output['block_detail_tbody'] .= "<tr><th class=\"text-end\">Merkleroot</th><td class=\"text-start\">" . $block["merkleroot"] . "</td></tr>";
$output['block_detail_tbody'] .= "<tr><th class=\"text-end\">Previous block</th><td class=\"text-start\">" . ($block["previousblockhash"] ? "<a class=\"text-info\" href=\"" . $url_path["blockhash"] . $block["previousblockhash"] . "\">" . $block["previousblockhash"] . "</a>" : "") . "</td></tr>";
$output['block_detail_tbody'] .= "<tr><th class=\"text-end\">Next block</th><td class=\"text-start\">" . ($block["nextblockhash"] ? "<a class=\"text-info\" href=\"" . $url_path["blockhash"] . $block["nextblockhash"] . "\">" . $block["nextblockhash"] . "</a>" : "") . "</td></tr>";
$output['block_detail_tbody'] .= "<tr><th class=\"text-end\">Transactions</th><td class=\"text-start\">" . count($block["tx"]) . "</td></tr>";
if (count($block["tx"]) > 0) {
foreach ($block["tx"] as $tx) {
$transaction_detail = array();
$transaction_detail['tx'] = $tx;
$rawtransaction = $bitcoinrpc->getrawtransaction($tx, 1);
if ($rawtransaction === false) {
continue;
}
$transaction_detail['time'] = $rawtransaction["time"];
if (isset($rawtransaction['vin'][0]['coinbase'])) {
$transaction_detail['coinbase'] = $rawtransaction['vin'][0]['coinbase'];
} else {
$transaction_detail['coinbase'] = "";
$transaction_detail['vin_count'] = count($rawtransaction['vin']);
}
foreach ($rawtransaction['vout'] as $vout) {
if ($vout['value'] > 0.0) {
$transaction_detail['vout'][$vout['n']]['addresses'] = $vout['scriptPubKey']['addresses'];
$transaction_detail['vout'][$vout['n']]['value'] = trim_dotzero($vout['value']);
}
}
$output['transactions'][] = $transaction_detail;
}
}
// echo json_encode($output);
// exit;
if (count($output['transactions']) > 0) {
foreach ($output['transactions'] as $value) {
$output['block_detail_tbody'] .= '<tr><th class="text-end">tx</th><td class="text-start">';
$output['block_detail_tbody'] .= '<a class="text-info" href="' . $url_path["tx"] . $value["tx"] . '">' . $value["tx"] . '</a>';
$output['block_detail_tbody'] .= '</td></tr>';
$output['block_detail_tbody'] .= '<tr><th class="text-end"></th><td class="text-start">';
$output['block_detail_tbody'] .= '<table class="table table-borderless text-white-50 table-sm w-75"><tbody>';
if ($value["coinbase"]) {
$reward = " <span class=\"text-muted\">*</span>";
} else {
$reward = "";
}
foreach ($value["vout"] as $vout) {
$output['block_detail_tbody'] .= '<tr><td class="text-start">' . $reward . $vout["value"] . ' ' . $config["symbol"] . '</td><td class="text-start">';
foreach ($vout["addresses"] as $address) {
$output['block_detail_tbody'] .= $address . '<br>';
}
$output['block_detail_tbody'] .= '</td></tr>';
}
$output['block_detail_tbody'] .= '</tbody></table>';
}
}
$output["height"] = $block["height"];
$output["title"] = $block["height"] . " Block Detail - ";
$output["description"] = "This block's height is " . $block["height"] . ", and the block hash is " . $block["hash"] . ". It was mined at " . gmdate($config["date_format"], $block["time"]) . " UTC.";
return $output;
}
function send404()
{
global $config;
// header('HTTP/1.1 404 Not Found');
// header("status: 404 Not Found");
http_response_code(404);
$output["title"] = "Oops! 404 Not Found - ";
$output["description"] = "Oops! 404 Not Found";
$output["body"] = "Oops! 404 Not Found<br><br><a class=\"btn3\" href=\"" . $config["explorer_path"] . "\">go home</a>";
$header = loadfile('./templates/header.html');
$htmlbody = loadfile('./templates/404.html');
$footer = loadfile('./templates/footer.html');
$html = $header . $htmlbody . $footer;
$html = html_replace_common($html);
$html = html_replace($html, $output);
echo clean_html($html);
exit();
}
function html_replace_common($html)
{
global $config, $version, $url_path;
$common["name"] = $config["name"];
$common["currency"] = $config["name"];
$common["symbol"] = $config["symbol"];
$common["explorer_name"] = $config["explorer_name"];
$common["explorer_path"] = $config["explorer_path"];
$common["homepage"] = $config["homepage"];
$common["copy_name"] = $config["copy_name"];
$common["start_year"] = $config["start_year"];
$common["year"] = date("Y", time());
$common["version"] = $version;
$common["search_url"] = $url_path["search"];
return html_replace($html, $common);
}
function html_replace($html, $output)
{
$keys = array();
foreach ($output as $key => $value) {
$keys[] = '{$' . $key . '}';
}
return str_replace(
$keys,
array_values($output),
$html);
}
exit;