config.php

<?php
/**
 * Usage:
 * File Name: config.php
 * Author: annhe  
 * Mail: i@annhe.net
 * Created Time: 2017-05-04 17:44:55
 **/

function readenv($env, $default="") {
	$e = getenv($env);
	if ($e == "") {
		return $default;
	}
	return $e;
}

// php在nginx后通过 HTTP_X_FORWARDED_PROTO 获取正确的 scheme
// Nginx须配置 proxy_set_header X-Forwarded-Proto $scheme;
$scheme = $_SERVER['REQUEST_SCHEME'];
if(isset($_SERVER['HTTP_X_FORWARDED_PROTO'])) $scheme = $_SERVER['HTTP_X_FORWARDED_PROTO'];

$config = array();
// api链接地址
$config['rooturl'] = $scheme . "://" . $_SERVER['HTTP_HOST'] . dirname($_SERVER['SCRIPT_NAME']);
$config['api'] = rtrim($config['rooturl'], "/") . "/api.php";
$config['cdn'] = getenv("CDN");
// 允许使用cdn的域名白名单，逗号分隔
$config['allowcdn'] = getenv("ALLOWCDN");
$config['allowcdns'] = explode(",", $config['allowcdn']);

if(isset($_SERVER['HTTP_REFERER'])) {
	preg_match('/http(s?):\/\/([a-z0-9\.-]+)?(:\d+)?(\/)?/', $_SERVER['HTTP_REFERER'], $matches);
	if(!in_array($matches[2], $config['allowcdns'])) {
		$config['cdn'] = "";
	}
}
// engine类型
$config['engine'] = array();
// 禁用某些engine
$config['disabled'] = explode(",",getenv("DISABLED"));
// 代码保存路径
$config['cache']['code'] = "./cache/code/";
// 图片保存路径
$config['cache']['image'] = "./cache/images/";
// 错误图片
$config['error'] = "cache/error.png";
$config['node_path'] = "/usr/lib/node_modules";

// cache
$config['cache']['error'] = readenv("CACHE_ERR",'600');
$config['cache']['age'] = readenv("CACHE_NORMAL",'2592000');

// analytics
$config['analytics']['baidu'] = getenv("BAIDU");

// ad
$config['ad']['google'] = getenv("GOOGLEAD");