NGINX 将 HEAD 转换为 GET 请求

NGINX 将 HEAD 转换为 GET 请求

由于一些糟糕的设计决策,我们的应用程序无法响应 HTTP HEAD 请求(返回“方法不允许”)。修改软件以正确返回 HEAD 请求会很棘手,虽然不是不可能,但需要额外的工作。该应用程序位于 NGINX 代理后面,我想知道是否有办法让 NGINX 将从客户端收到的 HEAD 请求转换为对后端的 GET 请求,然后丢弃除标头之外的响应并将其发送回客户端,就好像我们的应用程序服务器能够响应 HEAD 请求一样。

当前配置(相当标准)

upstream ourupstream{
    server unix:/var/apps/sockets/ourapp.socket.thread1
    server unix:/var/apps/sockets/ourapp.socket.thread2
    server unix:/var/apps/sockets/ourapp.socket.thread3
    [like 20 of these]
}

server {
    listen       1.2.3.4:80;
    server_name  ourapp;

    access_log  /var/apps/logs/ourapp.nginx.plog    proxy;
    error_log   /var/apps/logs/ourapp.nginx.elog    info;

    gzip on;

    gzip_types  text/plain text/html;

    proxy_intercept_errors on;
    proxy_connect_timeout 10;
    proxy_send_timeout 10;
    proxy_read_timeout 10;
    proxy_next_upstream error timeout;
    client_max_body_size 2m;

    error_page 404 /static/404.html;
    error_page 500 501 502 503 504 =500 /static/500.html;

    location / {
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_pass http://ourupstream/;
    }

    location /static/ {
        root /var/apps/global/;
    }
}

答案1

由于您正在使用 proxy_pass,我认为您必须使用一些 error_page 滥用(并且由于您已经在使用 error_pages,因此您还需要启用递归错误页面)。我认为这对您有用:

upstream ourupstream{
    server unix:/var/apps/sockets/ourapp.socket.thread1
    server unix:/var/apps/sockets/ourapp.socket.thread2
    server unix:/var/apps/sockets/ourapp.socket.thread3
    [like 20 of these]
}

server {
    listen       1.2.3.4:80;
    server_name  ourapp;

    access_log  /var/apps/logs/ourapp.nginx.plog    proxy;
    error_log   /var/apps/logs/ourapp.nginx.elog    info;

    gzip on;

    gzip_types  text/plain text/html;

    proxy_intercept_errors on;
    proxy_connect_timeout 10;
    proxy_send_timeout 10;
    proxy_read_timeout 10;
    proxy_next_upstream error timeout;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    client_max_body_size 2m;

    error_page 404 /static/404.html;
    error_page 500 501 502 503 504 =500 /static/500.html;

    location @force_get {
        recursive_error_pages on;
        proxy_method GET;
        proxy_pass http://ourupstream;
    }

    location / {
        error_page 550 = @force_get;
        if ($request_method = HEAD) { return 550; }
        proxy_pass http://ourupstream;
    }

    location /static/ {
        root /var/apps/global/;
    }
}

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