Synocommunity 第三方应用

Synocommunity提供了非常丰富和有用的第三方应用，具体可以去该网站查看。

在中国由于众所周知的原因，访问和下载packages.synocommunity.com里面的内容非常慢。安装、更新应用一直无法正常访问。最简单的想法就是使用镜像网站，发现并没有，所以就通过Cloudflare Workers自己搭建了一个。

搭建过程非常简单，我找到了一个专门用来反向代理的GitHub项目，然后修改了配置就可以使用了。

你可以使用我搭建的 https://synocommunity-packages.tuzhihao.com 直接配置在你的群晖使用，参考下图：

之后你就可以在社群里面找到丰富的插件，按需下载：

自行搭建

脚本

当然你可以自己搭建一个，创建一个wokers，在线编辑，填入如下脚本内容。

// copy from https://raw.githubusercontent.com/aD4wn/Workers-Proxy/master/src/index.js

// Website you intended to retrieve for users.
const upstream = 'packages.synocommunity.com'

// Custom pathname for the upstream website.
const upstream_path = '/'

// Website you intended to retrieve for users using mobile devices.
const upstream_mobile = 'packages.synocommunity.com'

// Countries and regions where you wish to suspend your service.
const blocked_region = []

// IP addresses which you wish to block from using your service.
const blocked_ip_address = []

// Whether to use HTTPS protocol for upstream address.
const https = true

// Whether to disable cache.
const disable_cache = true

// Replace texts.
const replace_dict = {
    '$upstream': '$custom_domain'
}

const replace_content_type = [
  'text/html',
  'application/json'
]


addEventListener('fetch', event => {
    event.respondWith(fetchAndApply(event.request));
})

async function fetchAndApply(request) {

    const region = (request.headers.get('cf-ipcountry') || "").toUpperCase();
    const ip_address = request.headers.get('cf-connecting-ip') || "";
    const user_agent = request.headers.get('user-agent') || "";

    let response = null;
    let url = new URL(request.url);
    let url_hostname = url.hostname;

    if (https == true) {
        url.protocol = 'https:';
    } else {
        url.protocol = 'http:';
    }

    if (await device_status(user_agent)) {
        var upstream_domain = upstream;
    } else {
        var upstream_domain = upstream_mobile;
    }

    url.host = upstream_domain;
    if (url.pathname == '/') {
        url.pathname = upstream_path;
    } else {
        url.pathname = upstream_path + url.pathname;
    }

    if (blocked_region.includes(region)) {
        response = new Response('Access denied: WorkersProxy is not available in your region yet.', {
            status: 403
        });
    } else if (blocked_ip_address.includes(ip_address)) {
        response = new Response('Access denied: Your IP address is blocked by WorkersProxy.', {
            status: 403
        });
    } else {
        let method = request.method;
        let request_headers = request.headers;
        let new_request_headers = new Headers(request_headers);

        new_request_headers.set('Host', upstream_domain);
        new_request_headers.set('Referer', url.protocol + '//' + url_hostname);

        let original_response = await fetch(url.href, {
            method: method,
            headers: new_request_headers
        })

        let original_response_clone = original_response.clone();
        let original_text = null;
        let response_headers = original_response.headers;
        let new_response_headers = new Headers(response_headers);
        let status = original_response.status;
		
		if (disable_cache) {
			new_response_headers.set('Cache-Control', 'no-store');
	    }

        new_response_headers.set('access-control-allow-origin', '*');
        new_response_headers.set('access-control-allow-credentials', true);
        new_response_headers.delete('content-security-policy');
        new_response_headers.delete('content-security-policy-report-only');
        new_response_headers.delete('clear-site-data');
		
        if(new_response_headers.get("x-pjax-url")) {
            new_response_headers.set("x-pjax-url", response_headers.get("x-pjax-url").replace("//" + upstream_domain, "//" + url_hostname));
        }
		
        const content_type = new_response_headers.get('content-type');
        if (check_replace_response_text(content_type)) {
            console.log('replace');
            original_text = await replace_response_text(original_response_clone, upstream_domain, url_hostname);
        } else {
            original_text = original_response_clone.body
        }
		
        response = new Response(original_text, {
            status,
            headers: new_response_headers
        })
    }
    return response;
}

function check_replace_response_text(content_type) {
  if(content_type == null){
    return false;
  }
  return replace_content_type.some((v) => content_type.includes(v));
}

async function replace_response_text(response, upstream_domain, host_name) {
    let text = await response.text()

    var i, j;
    for (i in replace_dict) {
        j = replace_dict[i]
        if (i == '$upstream') {
            i = upstream_domain
        } else if (i == '$custom_domain') {
            i = host_name
        }

        if (j == '$upstream') {
            j = upstream_domain
        } else if (j == '$custom_domain') {
            j = host_name
        }

        console.log(i, j);
        let re = new RegExp(i, 'g')
        text = text.replace(re, j);
    }
    return text;
}


async function device_status(user_agent_info) {
    var agents = ["Android", "iPhone", "SymbianOS", "Windows Phone", "iPad", "iPod"];
    var flag = true;
    for (var v = 0; v < agents.length; v++) {
        if (user_agent_info.indexOf(agents[v]) > 0) {
            flag = false;
            break;
        }
    }
    return flag;
}

检查是否搭建成功

访问如下地址(host替换为你自己的)：
https://synocommunity-packages.tuzhihao.com/?build=42962&language=enu&arch=apollolake

检查返回的json里面的link地址是否已经被替换，成功替换就代表搭建成功，恭喜🎉