无法获得prerender.io nginx配置以使用https重写(Having trouble getting prerender.io nginx config to work with https rewrite)

 我想我可能已经咬了这个nginx配置我想要写的东西。 我是nginx configs的新手，我正在尝试写一个非常复杂的配置（至少对我而言）。 任何帮助将非常感激。 
 
 配置需要： 
 
 
 
 
  
 将http $ http_x_forwarded_proto重定向到https（https切断ec2负载均衡器） 
 
  
 使用prerender.io的nginx中间件（seo用于可抓取的单页应用程序） 
 
  
 将任何查询参数（ _escaped_fragment_= ）从http传递给https 
 
  
 将所有子域请求重定向到https://example.com/c/ $ subdomain 
 
  
 允许http://example.com/healthcheck.txt通过http（负载均衡器运行状况检查） 
 
 
 
 
 这是我目前的配置 
 
server {
    listen 80;
    server_name example.com;

    root   /var/www/html/dist;
    index  index.html;

    error_log  /var/log/mysite/error.log;
    access_log /var/log/mysite/access.log;

    location /healthcheck.txt {
        break;
    }

    location / {
        try_files $uri @prerender;

        if ($http_x_forwarded_proto != "https") {
            set $urltest N;
        }

        if ($query_string) {
            set $urltest "${urltest}Y";
        }

        if ($urltest = N) {
            rewrite ^(.*)$ https://example.com$1 permanent;
        }

        if ($urltest = NY) {
            rewrite ^(.*)$ https://example.com$1?$query_string permanent;
        }
    }

    location @prerender {
        proxy_set_header X-Prerender-Token MY_TOKEN;

        set $prerender 0;
        if ($http_user_agent ~* "baiduspider|twitterbot|facebookexternalhit|rogerbot|linkedinbot|embedly|quora link preview|showyoubot|outbrain|pinterest|slackbot|vkShare|W3C_Validator") {
            set $prerender 1;
        }
        if ($args ~ "_escaped_fragment_") {
            set $prerender 1;
        }
        if ($http_user_agent ~ "Prerender") {
            set $prerender 0;
        }
        if ($uri ~ "\.(js|css|xml|less|png|jpg|jpeg|gif|pdf|doc|txt|ico|rss|zip|mp3|rar|exe|wmv|doc|avi|ppt|mpg|mpeg|tif|wav|mov|psd|ai|xls|mp4|m4a|swf|dat|dmg|iso|flv|m4v|torrent|ttf|woff)") {
            set $prerender 0;
        }

        #resolve using Google's DNS server to force DNS resolution and prevent caching of IPs
        resolver 8.8.8.8;

        if ($prerender = 1) {

            #setting prerender as a variable forces DNS resolution since nginx caches IPs and doesnt play well with load balancing
            set $prerender "service.prerender.io";
            rewrite .* /$scheme://$host$request_uri? break;
            proxy_pass http://$prerender;
        }
        if ($prerender = 0) {
            rewrite .* /index.html break;
        }
    }
}

server {
    listen 80;
    server_name ~^(?<sub>.+)\.example\.com$ ;

    rewrite ^ https://example.com/c/$sub;
}
 
 这适用于第1项和第4项，但第2项和第3项不起作用 
 
 
 
 
  
 使用prerender.io的nginx中间件 
 
 
 
 
 这根本不起作用，但是没有https重定向它确实有效 
 
 
 
 
  
 将任何查询参数（ _escaped_fragment_= ）从http传递给https 
 
 
 
 
 它工作，但重复查询参数，如下所示： ?_escaped_fragment_=&_escaped_fragment_= 
 
 
 有人可以提供任何建议吗？ 

I think I may have bitten off more than I can chew with this nginx config I am trying to write. I am a novice at nginx configs and I am trying to write a pretty complex config (at least to me). Any help would be very appreciated.
 
The config needs to:
 
 
 
 
  
redirect http $http_x_forwarded_proto to https (https cuts off at the ec2 load balancer) 
 
  
work with prerender.io's nginx middleware (seo for crawlable single page application)
 
  
pass any query parameters (_escaped_fragment_=) from http to https
 
  
redirect all subdomain requests to https://example.com/c/$subdomain
 
  
allow http://example.com/healthcheck.txt to pass through http (load balancer health check)
 
 
 
 
Here is my current config
 
server {
    listen 80;
    server_name example.com;

    root   /var/www/html/dist;
    index  index.html;

    error_log  /var/log/mysite/error.log;
    access_log /var/log/mysite/access.log;

    location /healthcheck.txt {
        break;
    }

    location / {
        try_files $uri @prerender;

        if ($http_x_forwarded_proto != "https") {
            set $urltest N;
        }

        if ($query_string) {
            set $urltest "${urltest}Y";
        }

        if ($urltest = N) {
            rewrite ^(.*)$ https://example.com$1 permanent;
        }

        if ($urltest = NY) {
            rewrite ^(.*)$ https://example.com$1?$query_string permanent;
        }
    }

    location @prerender {
        proxy_set_header X-Prerender-Token MY_TOKEN;

        set $prerender 0;
        if ($http_user_agent ~* "baiduspider|twitterbot|facebookexternalhit|rogerbot|linkedinbot|embedly|quora link preview|showyoubot|outbrain|pinterest|slackbot|vkShare|W3C_Validator") {
            set $prerender 1;
        }
        if ($args ~ "_escaped_fragment_") {
            set $prerender 1;
        }
        if ($http_user_agent ~ "Prerender") {
            set $prerender 0;
        }
        if ($uri ~ "\.(js|css|xml|less|png|jpg|jpeg|gif|pdf|doc|txt|ico|rss|zip|mp3|rar|exe|wmv|doc|avi|ppt|mpg|mpeg|tif|wav|mov|psd|ai|xls|mp4|m4a|swf|dat|dmg|iso|flv|m4v|torrent|ttf|woff)") {
            set $prerender 0;
        }

        #resolve using Google's DNS server to force DNS resolution and prevent caching of IPs
        resolver 8.8.8.8;

        if ($prerender = 1) {

            #setting prerender as a variable forces DNS resolution since nginx caches IPs and doesnt play well with load balancing
            set $prerender "service.prerender.io";
            rewrite .* /$scheme://$host$request_uri? break;
            proxy_pass http://$prerender;
        }
        if ($prerender = 0) {
            rewrite .* /index.html break;
        }
    }
}

server {
    listen 80;
    server_name ~^(?<sub>.+)\.example\.com$ ;

    rewrite ^ https://example.com/c/$sub;
}
 
This works for items 1 4 & 5, however items 2 & 3 do not work
 
 
 
 
  
work with prerender.io's nginx middleware
 
 
 
 
this does not work at all, however it does work without the https redirect
 
 
 
 
  
pass any query parameters (_escaped_fragment_=) from http to https
 
 
 
 
it works, but duplicates the query parameters like so: ?_escaped_fragment_=&_escaped_fragment_=
 
 
Anyone have any advice they could offer?

原文：https://stackoverflow.com/questions/34776580