feat: 后端全量更新 - 含所有本次需求

- Contract.php: 返回合约账户余额(balance_contract)
- My.php: 地址管理增加BTC/ETH
- AppContract.php: 一键平仓(closeall)
- AppProxy.php: 代理专属注册链接 + 分级权限(L1/L2)
- site.php: 手续费减半(0.018→0.009)
- agent_permission_setup.sql: 代理权限SQL
- crypto_news_crawler.py: 新闻自动采集脚本

public/GoJS-master/learn/kod/app/controller/api.class.php

@@ -0,0 +1,53 @@
+<?php 
+/*
+* @link http://kodcloud.com/
+* @author warlee | e-mail:kodcloud@qq.com
+* @copyright warlee 2014.(Shanghai)Co.,Ltd
+* @license http://kodcloud.com/tools/license/license.txt
+*/
+
+class api extends Controller{
+	function __construct(){
+		parent::__construct();
+	}
+
+	/**
+	 * 通用文件预览方案
+	 * image,media,cad,office,webodf,pdf,epub,swf,text
+	 * 跨域:epub,pdf,odf,[text];  
+	 * @return [type] [description]
+	 */
+	public function view(){
+		if(!isset($this->in['path'])){
+			show_tips('参数错误!');
+		}
+		$this->checkAccessToken();
+		$this->setIdentify();
+		$this->display('view.html');
+	}
+	private function setIdentify(){
+		if(! $_SESSION['accessPlugin'] ){
+			session_start();
+			$_SESSION['accessPlugin'] = 'ok';
+			session_write_close();
+		}
+	}
+	public function checkAccessToken(){
+		$model  = $this->loadModel('Plugin');
+		$config = $model->getConfig('fileView');
+		if(!$config['apiKey']){
+			return;
+		}
+		$timeTo = isset($this->in['timeTo'])?intval($this->in['timeTo']):'';
+		$token = md5($config['apiKey'].$this->in['path'].$timeTo);
+		
+		//show_tips(array($config['apiKey'],$token,$this->in));
+		if($token != $this->in['token']){
+			show_tips('token 错误!');
+		}
+		if($timeTo != '' && $timeTo <= time()){
+			show_tips('token已失效!');
+		}
+	}
+}
+