Nginx 如果 cookie 存在不同的位置

Question

我有一个使用预呈现服务的 nginx 配置文件，我想检查 cookie 名称 access_token 是否存在然后服务于本地 angular ，如果 cookie 不存在（用户未登录），则代理将请求传递给预渲染服务，

这是我的 nginx 配置文件，

proxy_cache_path /etc/nginx/cache levels=1:2 keys_zone=prerendercloud_cache:10m max_size=100m inactive=60m use_temp_path=off;

server {
    set $root /var/www/;
    resolver 8.8.8.8;
    set $prerendercloud 'service.prerender.cloud';

    listen 80;
    server_name _; 

    location = / {
        if ($http_cookie ~* "access_token" ) {
            root $root;
            try_files $uri $uri/ /index.html;
            index index.html;
        }

        root $root;
        try_files $uri @prerendercloud;
    }

    location / {
        root $root;
        try_files $uri $uri/ /index.html;
        index index.html;
    }



    location @prerendercloud {
        proxy_set_header Accept-Encoding "gzip";
        gunzip on;
        root $root;
        proxy_set_header X-Prerender-Token 'my_token';
        proxy_cache prerendercloud_cache;
        proxy_cache_valid 200 5m;
        proxy_intercept_errors on;
        error_page 429 500 502 503 504 =200 /index.html;
        proxy_cache_use_stale updating;
        set $prerender 0;
        if ($uri ~ "^(([^.]|\.html?)+)$") {
            set $prerender "EXTENSION";
        }
        set $prerender "${prerender}-USER_AGENT";
        if ($http_x_prerendered ~ true) {
            set $prerender 0;
        }
        if ($http_user_agent ~ "prerendercloud") {
            set $prerender 0;
        }
        proxy_cache_key "$prerender$host$uri";

        if ($prerender = "EXTENSION-USER_AGENT") {
            rewrite .* /$scheme://$host$request_uri? break;
            proxy_pass http://$prerendercloud$uri;
            break;
        }
        rewrite .* /index.html break;
    }

}

这是 nginx 给我的错误：

nginx: [emerg] "try_files" directive is not allowed here in /etc/nginx/conf.d/default.conf:30

我应该补充一点，美元符号被转义了，因为这个文件在我的 docker 入口点内。

Answer 1

我找到了解决方案这是我的有效配置文件：

proxy_cache_path /etc/nginx/cache levels=1:2 keys_zone=prerendercloud_cache:10m max_size=100m inactive=60m use_temp_path=off;

server {
    set $root /var/www/;
    resolver 8.8.8.8;
    set $prerendercloud 'service.prerender.cloud';
    listen 80;
    server_name _;

    root $root;

    location = / {
        try_files $uri @prerendercloud;
    }


    location / {
        try_files $uri $uri/index.html $uri/ /index.html;
        index index.html;
    }

    location @prerendercloud {
        proxy_set_header Accept-Encoding "gzip";
        gunzip on;
        proxy_set_header X-Prerender-Token 'my_token';
        proxy_cache prerendercloud_cache;
        proxy_cache_valid 200 5m;
        proxy_intercept_errors on;
        error_page 429 500 502 503 504 =200 /index.html;
        proxy_cache_use_stale updating;
        set $prerender 0;
        if ($uri ~ "^(([^.]|\.html?)+)$") {
            set $prerender "EXTENSION";
        }
        set $prerender "${prerender}-USER_AGENT";
        if ($http_x_prerendered ~ true) {
            set $prerender 0;
        }

        if ($http_user_agent ~ "prerendercloud") {
            set $prerender 0;
        }

        if ($http_cookie ~* "access_token" ) {
            set $prerender 0;
        }

        proxy_cache_key "$prerender$host$uri";



        if ($prerender = "EXTENSION-USER_AGENT") {

            rewrite .* /$scheme://$host$request_uri? break;
            proxy_pass http://$prerendercloud$uri;
            break;
        }

        rewrite .* /index.html break;
    }

}

现在我知道nginx rewrite不仅仅是用301或302重定向请求，它还可以服务器与其他位置相关的内容。所以我发现最重要的是重写 != redirect (301, 302)

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