dictionary - NGINX 中用户代理的不同文件

Question

如何正确编写nginx服务器的配置？

...
if the client has useragent (A) and it refers to http://somehost.domain/somefile.someextension
       nginx responding a file from the root /file.zip
if the client has useragent (B) and it refers to http://somehost.domain/somefile.someextension
       nginx responding a file from the root /file2.zip
if the client has useragent (C) and it refers to http://somehost.domain/somefile.someextension
       nginx responding 403 error
...

---

我做了这段代码:

map $http_user_agent $browser {
        "~*Firefox"             "/var/www/test1";
        "~*Wget"                "/var/www/test2";
        "~*SomeUserAgent"       "/var/www/test3";
}

server {
...
root $browser

但是我如何获得传递到任何地址的条件 http://somehost.domain/somefile.someextension ？

Answer 1

您可以使用 map、location 和 alias 指令根据 header 的值将特定 URI 映射到多个文件。

例如(所有文件都在同一目录中):

map $http_user_agent $browser {
    default           "nonexistent";
    "~*Firefox"       "file.zip";
    "~*Wget"          "file1.zip";
}

server {
    ...
    location = /somefile.someextension {
        alias /path/to/directory/$browser;

        if (!-f $request_filename) {
            return 403;
        }
    }
}

if block 只需要将 404 响应更改为 403 响应。

参见 this document了解更多。