nginx - Nginx 在代理通道上解码“%2F”

Question

我正在尝试设置一个 Nginx 反向代理来访问位于 Docker 容器内端口 3000 的 API。

该代理适用于多种 url，包括带有转义字符的 URL，例如%20（空格）、%3C（<）、%3E（>）等。但是，当涉及字符%2F（/）时，Nginx 会在转发之前对其进行解码请求到相应的服务器。

例如，网址：

https://example.com/api/August%2F2021/games/desc/

变成：

https://example.com/api/August/2021/games/desc/,

从而返回400 bad request。

这是我的nginx.conf：

user nginx;
worker_processes 1;
error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;

events {
  worker_connections 1024;
}
http {
  include /etc/nginx/mime.types;
  default_type application/octet-stream;
  log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                  '$status $body_bytes_sent "$http_referer" '
                  '"$http_user_agent" "$http_x_forwarded_for"';
  access_log /var/log/nginx/access.log  main;
  sendfile on;
  keepalive_timeout  65;
  server {
    listen [::]:443 ssl ipv6only=on; # managed by Certbot
    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/haxmania.com.br/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/haxmania.com.br/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
    server_name example.com; # managed by Certbot

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

    location /api/ {
      proxy_pass http://backend:3000/;
    }

    error_page 500 502 503 504 /50x.html;

    location = /50x.html {
      root /usr/share/nginx/html;
    }
  }
  server {
    if ($host = example.com) {
      return 301 https://$host$request_uri;
    } # managed by Certbot

    listen 80;
    listen [::]:80;
    server_name example.com;
    return 404; # managed by Certbot
  }
}

我的问题与这个问题几乎相同，但是没有一个解决方案对我有用。我试着改变：

proxy_pass http://backend:3000/;至proxy_pass http://backend:3000$request_uri;

但它没有用。

我相信解决方案可能是编写rewrite指令，但我正在努力解决应该如何完成......任何提示将不胜感激。

标签： nginxreverse-proxy