diff --git a/lib/config.js b/lib/config.js
index c4753b2124..3df78baa82 100644
--- a/lib/config.js
+++ b/lib/config.js
@@ -1,95 +1,108 @@
+let envs = process.env;
+
 const bilibili_cookies = {};
 const twitter_tokens = {};
 const email_config = {};
-const envs = process.env;
-for (const name in envs) {
-    if (name.startsWith('BILIBILI_COOKIE_')) {
-        const uid = name.slice(16);
-        bilibili_cookies[uid] = envs[name];
-    } else if (name.startsWith('TWITTER_TOKEN_')) {
-        const id = name.slice(14);
-        twitter_tokens[id] = envs[name];
-    } else if (name.startsWith('EMAIL_CONFIG_')) {
-        const id = name.slice(13);
-        email_config[id] = envs[name];
+
+const calculateValue = () => {
+    for (const name in envs) {
+        if (name.startsWith('BILIBILI_COOKIE_')) {
+            const uid = name.slice(16);
+            bilibili_cookies[uid] = envs[name];
+        } else if (name.startsWith('TWITTER_TOKEN_')) {
+            const id = name.slice(14);
+            twitter_tokens[id] = envs[name];
+        } else if (name.startsWith('EMAIL_CONFIG_')) {
+            const id = name.slice(13);
+            email_config[id] = envs[name];
+        }
     }
-}
+};
+calculateValue();
 
 module.exports = {
-    connect: {
-        port: process.env.PORT || 1200, // 监听端口
-        socket: process.env.SOCKET || null, // 监听 Unix Socket, null 为禁用
+    set: (env) => {
+        envs = Object.assign(process.env, env);
+        calculateValue();
     },
-    cache: {
-        type: typeof process.env.CACHE_TYPE === 'undefined' ? 'memory' : process.env.CACHE_TYPE, // 缓存类型，支持 'memory' 和 'redis'，设为空可以禁止缓存
-        routeExpire: parseInt(process.env.CACHE_EXPIRE) || 5 * 60, // 路由缓存时间，单位为秒
-        contentExpire: parseInt(process.env.CACHE_CONTENT_EXPIRE) || 1 * 60 * 60, // 不变内容缓存时间，单位为秒
-    },
-    ua: process.env.UA || 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36',
-    listenInaddrAny: parseInt(process.env.LISTEN_INADDR_ANY) || 1, // 是否允许公网连接，取值 0 1
-    requestRetry: parseInt(process.env.REQUEST_RETRY) || 2, // 请求失败重试次数
-    // 是否显示 Debug 信息，取值 boolean 'false' 'key' ，取值为 'false' false 时永远不显示，取值为 'key' 时带上 ?debug=key 显示
-    debugInfo: process.env.DEBUG_INFO || true,
-    titleLengthLimit: parseInt(process.env.TITLE_LENGTH_LIMIT) || 100,
-    redis: {
-        url: process.env.REDIS_URL || 'redis://localhost:6379/',
-        options: {
-            // 支持这些参数 https://github.com/NodeRedis/node_redis#options-object-properties
-            password: process.env.REDIS_PASSWORD || null,
-        },
-    },
-    nodeName: process.env.NODE_NAME,
-    pixiv: {
-        username: process.env.PIXIV_USERNAME,
-        password: process.env.PIXIV_PASSWORD,
-    },
-    disqus: {
-        api_key: process.env.DISQUS_API_KEY,
-    },
-    twitter: {
-        consumer_key: process.env.TWITTER_CONSUMER_KEY,
-        consumer_secret: process.env.TWITTER_CONSUMER_SECRET,
-        tokens: twitter_tokens,
-    },
-    youtube: {
-        key: process.env.YOUTUBE_KEY,
-    },
-    telegram: {
-        token: process.env.TELEGRAM_TOKEN,
-    },
-    github: {
-        access_token: process.env.GITHUB_ACCESS_TOKEN,
-    },
-    imgur: {
-        clientId: process.env.IMGUR_CLIRNT_ID,
-    },
-    authentication: {
-        name: process.env.HTTP_BASIC_AUTH_NAME || 'usernam3',
-        pass: process.env.HTTP_BASIC_AUTH_PASS || 'passw0rd',
-    },
-    bilibili: {
-        cookies: bilibili_cookies,
-    },
-    yuque: {
-        token: process.env.YUQUE_TOKEN,
-    },
-    puppeteerWSEndpoint: process.env.PUPPETEER_WS_ENDPOINT,
-    loggerLevel: process.env.LOGGER_LEVEL || 'info',
-    proxy: {
-        protocol: process.env.PROXY_PROTOCOL,
-        host: process.env.PROXY_HOST,
-        port: process.env.PROXY_PORT,
-        auth: process.env.PROXY_AUTH,
-        url_regex: process.env.PROXY_URL_REGEX || '.*',
-    },
-    blacklist: process.env.BLACKLIST && process.env.BLACKLIST.split(','),
-    whitelist: process.env.WHITELIST && process.env.WHITELIST.split(','),
-    enableCluster: process.env.ENABLE_CLUSTER,
-    email: {
-        config: email_config,
-    },
-    sentry: process.env.SENTRY,
-    chuiniu: {
-        member: process.env.CHUINIU_MEMBER,
+    get value() {
+        return {
+            connect: {
+                port: envs.PORT || 1200, // 监听端口
+                socket: envs.SOCKET || null, // 监听 Unix Socket, null 为禁用
+            },
+            cache: {
+                type: typeof envs.CACHE_TYPE === 'undefined' ? 'memory' : envs.CACHE_TYPE, // 缓存类型，支持 'memory' 和 'redis'，设为空可以禁止缓存
+                routeExpire: parseInt(envs.CACHE_EXPIRE) || 5 * 60, // 路由缓存时间，单位为秒
+                contentExpire: parseInt(envs.CACHE_CONTENT_EXPIRE) || 1 * 60 * 60, // 不变内容缓存时间，单位为秒
+            },
+            ua: envs.UA || 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36',
+            listenInaddrAny: parseInt(envs.LISTEN_INADDR_ANY) || 1, // 是否允许公网连接，取值 0 1
+            requestRetry: parseInt(envs.REQUEST_RETRY) || 2, // 请求失败重试次数
+            // 是否显示 Debug 信息，取值 boolean 'false' 'key' ，取值为 'false' false 时永远不显示，取值为 'key' 时带上 ?debug=key 显示
+            debugInfo: envs.DEBUG_INFO || true,
+            titleLengthLimit: parseInt(envs.TITLE_LENGTH_LIMIT) || 100,
+            redis: {
+                url: envs.REDIS_URL || 'redis://localhost:6379/',
+                options: {
+                    // 支持这些参数 https://github.com/NodeRedis/node_redis#options-object-properties
+                    password: envs.REDIS_PASSWORD || null,
+                },
+            },
+            nodeName: envs.NODE_NAME,
+            pixiv: {
+                username: envs.PIXIV_USERNAME,
+                password: envs.PIXIV_PASSWORD,
+            },
+            disqus: {
+                api_key: envs.DISQUS_API_KEY,
+            },
+            twitter: {
+                consumer_key: envs.TWITTER_CONSUMER_KEY,
+                consumer_secret: envs.TWITTER_CONSUMER_SECRET,
+                tokens: twitter_tokens,
+            },
+            youtube: {
+                key: envs.YOUTUBE_KEY,
+            },
+            telegram: {
+                token: envs.TELEGRAM_TOKEN,
+            },
+            github: {
+                access_token: envs.GITHUB_ACCESS_TOKEN,
+            },
+            imgur: {
+                clientId: envs.IMGUR_CLIRNT_ID,
+            },
+            authentication: {
+                name: envs.HTTP_BASIC_AUTH_NAME || 'usernam3',
+                pass: envs.HTTP_BASIC_AUTH_PASS || 'passw0rd',
+            },
+            bilibili: {
+                cookies: bilibili_cookies,
+            },
+            yuque: {
+                token: envs.YUQUE_TOKEN,
+            },
+            puppeteerWSEndpoint: envs.PUPPETEER_WS_ENDPOINT,
+            loggerLevel: envs.LOGGER_LEVEL || 'info',
+            proxy: {
+                protocol: envs.PROXY_PROTOCOL,
+                host: envs.PROXY_HOST,
+                port: envs.PROXY_PORT,
+                auth: envs.PROXY_AUTH,
+                url_regex: envs.PROXY_URL_REGEX || '.*',
+            },
+            blacklist: envs.BLACKLIST && envs.BLACKLIST.split(','),
+            whitelist: envs.WHITELIST && envs.WHITELIST.split(','),
+            enableCluster: envs.ENABLE_CLUSTER,
+            email: {
+                config: email_config,
+            },
+            sentry: envs.SENTRY,
+            chuiniu: {
+                member: envs.CHUINIU_MEMBER,
+            },
+        };
     },
 };
diff --git a/lib/pkg.js b/lib/pkg.js
index c2f3163423..583b85422f 100644
--- a/lib/pkg.js
+++ b/lib/pkg.js
@@ -1,21 +1,25 @@
 const app = require('./app');
+const config = require('./config');
 
-const pkg = (path) =>
-    new Promise((resolve) => {
-        app.callback()(
-            {
-                url: path,
-                method: 'GET',
-                headers: {},
-                socket: {},
-            },
-            {
-                setHeader: () => {},
-                end: (data) => {
-                    resolve(data);
+module.exports = {
+    setConfig: (conf) => {
+        config.set(conf);
+    },
+    request: (path) =>
+        new Promise((resolve) => {
+            app.callback()(
+                {
+                    url: path,
+                    method: 'GET',
+                    headers: {},
+                    socket: {},
                 },
-            }
-        );
-    });
-
-module.exports = pkg;
+                {
+                    setHeader: () => {},
+                    end: (data) => {
+                        resolve(data);
+                    },
+                }
+            );
+        }),
+};