专业整活儿:一种通过Cloudflare Workers反代SharePoint进行加速的方法

发布于 2021-01-27  1561 次阅读


本周又是低产的一周,但整活儿记录还是要有。

一种通过Cloudflare Workers反代SharePoint进行加速的方法

不多BB,上代码

// 替换成你OneDrive的网址
const upstream = '*-my.sharepoint.com'
 
// 替换成你OneDrive的网址
const upstream_mobile = '*-my.sharepoint.com'
 
// 下面的配置都不用动
const upstream_path = '/'
 
const blocked_region = ['KP', 'SY', 'PK', 'CU']
 
const blocked_ip_address = ['0.0.0.0', '127.0.0.1']
 
const https = true
 
const disable_cache = false
 
const replace_dict = {
    '$upstream': '$custom_domain',
    '//sunpma.com': ''
}
 
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
        })
 
        connection_upgrade = new_request_headers.get("Upgrade");
        if (connection_upgrade && connection_upgrade.toLowerCase() == "websocket") {
            return original_response;
        }
 
        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 (content_type != null && content_type.includes('text/html') && content_type.includes('UTF-8')) {
            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;
}
 
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
        }
 
        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;
}

如果代码窗格显示或复制报错,请查阅原始文件

StepⅠ:使用方法:

注册cloudflare账号:https://dash.cloudflare.com/sign-up

有账号可以直接登陆

点击页面右边的Workers
点击:创建worker

粘贴并修改好代码后,点击“保存并部署”,即可上线了

这里需要根据自己的SharePoint网址替换其中的*号,例如我的存储空间就是bbimax-my.sharepoint.com,将*号替换为bbimax即可。

保存并部署后访问这个网页,会出现如下显示:

显示这个页面说明部署正确了,但并不能用于登录

但通过这个地址,我们已经使用cloudflare成功反代了SharePoint的流量。

StepⅡ:应用举例:

Cloudreve V3.2.1版本加入了OneDrive反代功能,在对接存储时把反代链接填上即可。

在反代服务器地址填上类似https://*.*.workers.dev/的网址即可

StepⅢ:自定义域名

如果嫌自动分配的域名不美观的话,可以自定义域名,前提是你要有个域名,并完成cloudflare的接入。

进入你要添加域名的主域,点击“添加记录”

添加一条CNAME记录,点击保存

点击上方的workers,点击添加路由

如图所示进行填写,注意后面的斜杠与星号必须要有,worker指向我们刚才创建的这个:

点击保存后,稍等几分钟,解析成功就可以使用了。

显示这个页面,说明成功了

StepⅣ:效果验证

测试环境:中国电信500mbps家庭宽带,其实大陆的SharePoint国际版下载速度从2018年开始就一直不太好,时常处于“带宽紧张”的状态(不排除微软自行限速的可能)。从图中我们可以看出,经过反代后,单线程下载速度已经取得了明显的提升,毕竟cloudflare的反代能力有限,具体下载速度还要取决于国际带宽情况。

使用IDM之类的多线程下载工具,也许可以获得更好的效果。

核心代码部分,参考项目:

spencerwooo/onedrive-cf-indexEtherDream/jsproxy;小灯泡技术站


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