function ohlc()
{
//callback : required
if (!isset($_GET['callback']) || !preg_match('/^[a-zA-Z0-9_]+$/', $_GET['callback'])) {
die('Invalid callback name');
}
$callback = $_GET['callback'];
//pair : required
if (!isset($_GET['pair']) || !preg_match('/^[A-Z]{3}\\/[A-Z]{3}$/', $_GET['pair'])) {
die("Invalid pair parameter: " . $_GET['pair']);
}
$pair = $_GET['pair'];
//start : optional (default : now - 1 day)
if (isset($_GET['start']) && !preg_match('/^[0-9]+$/', $_GET['start'])) {
die("Invalid start parameter: " . $_GET['start']);
}
$start = isset($_GET['start']) ? $_GET['start'] : (time() - 86400) * 1000;
//end : optional (default : now())
if (isset($_GET['end']) && !preg_match('/^[0-9]+$/', $_GET['end'])) {
die("Invalid end parameter: " . $_GET['end']);
}
$end = isset($_GET['end']) ? $_GET['end'] : time() * 1000;
//bid_offer : optional (default : 'bid')
if (isset($_GET['bid_offer']) && !preg_match('/^(bid|offer)$/', $_GET['bid_offer'])) {
die("Invalid bid_offer parameter: " . $_GET['bid_offer']);
}
$bid_offer = isset($_GET['bid_offer']) ? $_GET['bid_offer'] : 'bid';
//force timeslice [s,m,h,d,w,M]
$timeslice = isset($_GET['timeslice']) ? $_GET['timeslice'] : null;
//debug
$startTime = gmstrftime('%Y-%m-%d %H:%M:%S', $start / 1000);
$endTime = gmstrftime('%Y-%m-%d %H:%M:%S', $end / 1000);
$my_ohlc = new OHLC();
$results = $my_ohlc->get_ohlc($pair, $start, $end, $bid_offer, $timeslice);
// print it
$this->setContentType('js');
echo "/* console.log(' start = {$start}, end = {$end}, startTime = {$startTime}, endTime = {$endTime} '); */";
echo $callback . "([\n" . join(",\n", $results) . "\n]);";
}
function ta()
{
//callback : required
if (!isset($_GET['callback']) || !preg_match('/^[a-zA-Z0-9_]+$/', $_GET['callback'])) {
die('Invalid callback name');
}
$callback = $_GET['callback'];
//pair : required
if (!isset($_GET['pair']) || !preg_match('/^[A-Z]{3}\\/[A-Z]{3}$/', $_GET['pair'])) {
die("Invalid pair parameter: " . $_GET['pair']);
}
$pair = $_GET['pair'];
//start : optional (default : now - 1 day)
if (isset($_GET['start']) && !preg_match('/^[0-9]+$/', $_GET['start'])) {
die("Invalid start parameter: " . $_GET['start']);
}
$start = isset($_GET['start']) ? $_GET['start'] : (time() - 86400) * 1000;
//end : optional (default : now())
if (isset($_GET['end']) && !preg_match('/^[0-9]+$/', $_GET['end'])) {
die("Invalid end parameter: " . $_GET['end']);
}
$end = isset($_GET['end']) ? $_GET['end'] : time() * 1000;
//bid_offer : optional (default : 'bid')
if (isset($_GET['bid_offer']) && !preg_match('/^(bid|offer)$/', $_GET['bid_offer'])) {
die("Invalid bid_offer parameter: " . $_GET['bid_offer']);
}
$bid_offer = isset($_GET['bid_offer']) ? $_GET['bid_offer'] : 'bid';
//function : required
$function = $_GET['function'];
if (!isset($_GET['function']) || !class_exists($function)) {
die("Invalid function parameter: " . $_GET['function']);
}
$function = $_GET['function'];
//function params arr : optional
$function_param_arr = isset($_GET['function_param_arr']) ? json_decode($_GET['function_param_arr'], true) : array();
//force timeslice [s,m,h,d,w,M]
$timeslice = isset($_GET['timeslice']) ? $_GET['timeslice'] : null;
//get extra rows needed to calculate fuction
$lag = call_user_func_array(array($function, "lag"), $function_param_arr);
if (!$lag) {
$lag = 0;
}
//get data
$my_ohlc = new OHLC();
$results = $my_ohlc->get_ohlc($pair, $start, $end, $bid_offer, $timeslice, $lag);
//build data
$data = array();
foreach ($results as $row) {
//parse out fields
$arr = explode(',', substr($row, 1, strlen($row) - 2));
//sava
$data[] = array('open' => $arr[1], 'high' => $arr[2], 'low' => $arr[3], 'close' => $arr[4], 'vol' => $arr[5], 'datetime' => $arr[0]);
}
//push data as first param to generic run function
array_unshift($function_param_arr, $data);
//pass to function
$ta_results = call_user_func_array(array($function, "run"), $function_param_arr);
//Supports 3 return values from $function. Convert to json format
$results = array();
foreach ($ta_results as $row) {
extract($row);
if (isset($val3) && isset($val2) && isset($val)) {
$results[] = "[{$datetime},{$val},{$val2},{$val3}]";
} else {
if (isset($val2) && isset($val)) {
$results[] = "[{$datetime},{$val},{$val2}]";
} else {
if (isset($val)) {
$results[] = "[{$datetime},{$val}]";
}
}
}
}
//debug
$startTime = gmstrftime('%Y-%m-%d %H:%M:%S', $start / 1000);
$endTime = gmstrftime('%Y-%m-%d %H:%M:%S', $end / 1000);
// print it
header('Content-Type: text/javascript');
echo "/* console.log(' start = {$start}, end = {$end}, startTime = {$startTime}, endTime = {$endTime} '); */";
echo $callback . "([\n" . join(",\n", $results) . "\n]);";
}
