From a5de1e3d1a6632658315b3a47e677cb13b7c0f7f Mon Sep 17 00:00:00 2001
From: Tanguy Pruvot <tanguy.pruvot@gmail.com>
Date: Tue, 19 Feb 2019 14:24:22 +0100
Subject: [PATCH] api: kucoin v2 private api changes

---
 web/yaamp/commands/ExchangeCommand.php |  4 ++--
 web/yaamp/core/backend/rawcoins.php    |  7 +++----
 web/yaamp/core/exchange/kucoin.php     | 12 ++++++------
 3 files changed, 11 insertions(+), 12 deletions(-)

diff --git a/web/yaamp/commands/ExchangeCommand.php b/web/yaamp/commands/ExchangeCommand.php
index 1c33577..e659917 100644
--- a/web/yaamp/commands/ExchangeCommand.php
+++ b/web/yaamp/commands/ExchangeCommand.php
@@ -191,8 +191,8 @@ class ExchangeCommand extends CConsoleCommand
 			$balance = kraken_api_user('Balance');
 			echo("kraken btc: ".json_encode($balance)."\n");
 		}
-		if (!empty(EXCH_KUCOIN_KEY)) {
-			$balance = kucoin_api_user('accounts'/*,array('currency=BTC')*/);
+		if (!empty(EXCH_KUCOIN_KEY) && !empty(EXCH_KUCOIN_PASSPHRASE)) {
+			$balance = kucoin_api_user('accounts',array('currency'=>'BTC'));
 			if (!is_object($balance) || !isset($balance->data)) echo "kucoin error ".json_encode($balance)."\n";
 			else echo("kucoin: ".json_encode($balance->data)."\n");
 		}
diff --git a/web/yaamp/core/backend/rawcoins.php b/web/yaamp/core/backend/rawcoins.php
index 520ad91..c9948b5 100644
--- a/web/yaamp/core/backend/rawcoins.php
+++ b/web/yaamp/core/backend/rawcoins.php
@@ -339,14 +339,13 @@ function updateRawcoins()
 	}
 
 	if (!exchange_get('kucoin', 'disabled')) {
-		$list = kucoin_api_query('market/open/coins');
+		$list = kucoin_api_query('currencies');
 		if(is_object($list) && isset($list->data) && !empty($list->data))
 		{
 			dborun("UPDATE markets SET deleted=true WHERE name='kucoin'");
 			foreach($list->data as $item) {
-				$symbol = $item->coin;
-				$name = $item->name;
-				if (strpos($item->withdrawRemark,'Ethereum')) continue;
+				$symbol = $item->name;
+				$name = $item->fullName;
 				updateRawCoin('kucoin', $symbol, $name);
 			}
 		}
diff --git a/web/yaamp/core/exchange/kucoin.php b/web/yaamp/core/exchange/kucoin.php
index 8077f42..474846c 100644
--- a/web/yaamp/core/exchange/kucoin.php
+++ b/web/yaamp/core/exchange/kucoin.php
@@ -74,14 +74,14 @@ function kucoin_api_user($method, $params=NULL, $isPostMethod=false)
 
 	$req = $isPostMethod ? "POST" : "GET";
 	$tosign = "{$nonce}{$req}{$endpoint}{$body}";
-	$hmac = strtolower(hash_hmac('sha256', base64_encode($tosign), EXCH_KUCOIN_SECRET));
+	$hmac = hash_hmac('sha256', $tosign, EXCH_KUCOIN_SECRET, true);
 
 	$headers = array(
 		'Content-Type: application/json;charset=UTF-8',
 		'KC-API-KEY: '.EXCH_KUCOIN_KEY,
 		'KC-API-PASSPHRASE: '.EXCH_KUCOIN_PASSPHRASE,
 		'KC-API-TIMESTAMP: '.$nonce,
-		'KC-API-SIGN: '.$hmac,
+		'KC-API-SIGN: '.base64_encode($hmac),
 	);
 
 	$ch = curl_init();
@@ -145,14 +145,14 @@ function kucoin_update_market($market)
 	}
 
 	$t1 = microtime(true);
-	$query = kucoin_api_query("$pair/open/tick");
+	$query = kucoin_api_query('market/orderbook/level1','symbol='.$pair);
 	if(!kucoin_result_valid($query)) return false;
 	$ticker = $query->data;
 
-	$price2 = ((double) $ticker->buy + (double)$ticker->sell)/2;
+	$price2 = ((double) $ticker->bestBid + (double)$ticker->bestAsk)/2;
 	$market->price2 = AverageIncrement($market->price2, $price2);
-	$market->price = AverageIncrement($market->price, $ticker->buy);
-	$market->pricetime = time();
+	$market->price = AverageIncrement($market->price, $ticker->bestBid);
+	$market->pricetime = min(time(), 0 + $ticker->sequence);
 	$market->save();
 
 	$apims = round((microtime(true) - $t1)*1000,3);