Robots.txt 不应重定向到 HTTPS答案

【问题标题】：Robots.txt should not be redirected to HTTPSRobots.txt 不应重定向到 HTTPS
【发布时间】：2019-11-19 16:24:22
【问题描述】：

我有以下 Nginx 配置。我将所有 HTTP 请求重定向到 HTTPS。我想要实现的是 robots.txt（“http://example.com/robots.txt”或“http://example2.com/robots.txt”）上的 HTTP 请求不会被重定向到 HTTPS。我很难找到合适的陈述。

我的 Nginx 配置

server {

    server_name  example.com  www.example.com  example2.com  www.example2.com;

    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header HOST $http_host;
    proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header        X-Forwarded-Proto $scheme;
    proxy_set_header X-HTTPS-Protocol $ssl_protocol;
    proxy_set_header X-NginX-Proxy true;

    location / {
        proxy_pass http://127.0.0.1:9092;
    }

    listen 443 ssl;
    ssl_certificate /path
    ssl_certificate_key /path
    include /path
    ssl_dhparam /path



}
server {

    server_name  example.com  www.example.com  example2.com  www.example2.com;

    listen 80;
    listen [::]:80;

    #
    # What to put here not to redirect robots.txt to HTTPS?
    #

    if ($host = www.example.com) {
        return 301 https://$host$request_uri;
    }

    if ($host = example.com) {
        return 301 https://$host$request_uri;
    }

    if ($host = www.example2.com) {
        return 301 https://$host$request_uri;
    }

    if ($host = example2.com) {
        return 301 https://$host$request_uri;
    }

    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header HOST $http_host;
    proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header        X-Forwarded-Proto $scheme;
    proxy_set_header X-HTTPS-Protocol $ssl_protocol;
    proxy_set_header X-NginX-Proxy true;

    location / {
        proxy_pass http://127.0.0.1:9092;
    }

    return 404;
}

【问题讨论】：

标签： nginx nginx-location nginx-config

【解决方案1】：

简单的答案是废弃第二个server 块并重新开始。也许是这样的：

server {
    server_name  example.com  www.example.com  example2.com  www.example2.com;

    listen 80;
    listen [::]:80;

    location / {
        return 301 https://$host$request_uri;
    }
    location = /robots.txt {
        root /path/to/directory;
    }
}

【讨论】：