我的目标是拥有一个可以 proxy_pass 到其他服务器的 nginx。
Desired input
https://example.com/https://assets1.com/image.jpg?utm=whatever
Desired output
https://assets1.com/image.jpg?utm=whatever
这是我的位置块
server {
index index.html index.htm index.nginx-debian.html;
server_name example.com www.example.com;
location ~/(.*) {
if ($request_method = 'GET') {
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Credentials' 'true';
add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User->
}
proxy_pass https://$1$is_args$args/;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host "www.example.com";
}
listen 80;
listen [::]:442 ssl ipv6only=on;
listen 443 ssl; # managed by Certbot
ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem; # managed by Certbot
ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem; # managed by Certbot
include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
}
我得到的错误是:
2021/09/21 09:27:32 [错误] 8475#8475:*16上游端口无效 “https:/assets1.com/image.jpg?utm=whatever”,客户端:[IP],服务器:domain.com,请求:“GET /https://assets1.com/image.jpg?utm=whatever HTTP/1.1”,主机:“example.com”
答案1
您的原始请求 URL 包含协议前缀:https://example.com/https://assets1.com
。
您的location
块捕获了第一之后的部分/
,因此$1
变成https://assets1.com
。
在您的proxy_pass
语句中,您有,当变量扩展时https://$1$is_args$args
它就会变成。https://https://assets1.com
nginx 尝试将其解析https://assets1.com
为域:端口对,因此 URL 的域部分是,https
而端口是空字符串。
为了解决这个问题,我建议以下配置:
location ~^/https://(.+)$ {
proxy_pass https://$1$is_args$args;
...
}
这样,我们就可以将协议部分排除在 $1 之外,这样我们就有了一个正确的 URL。我还添加了开始和结束锚点,以使正则表达式更加健壮。