Question

人。我需要你的帮助。第一个配置文件正常运行：

set $cors "";
if ($http_origin ~* "^https?://auto.*") {
    set $cors "true";
}
if ($http_origin ~* "^https?://dom.*") {
    set $cors "true";
}
location /push/pub/ {
    push_stream_publisher                   admin;
    push_stream_channels_path               $arg_id;
    include allow/servers.*.conf;
    deny all;
}
location ~ /push/sub/(.*) {
    push_stream_subscriber                  long-polling;
    push_stream_channels_path               $1;
    push_stream_last_received_message_tag   $arg_tag;
    push_stream_last_received_message_time  $arg_time;
    push_stream_longpolling_connection_ttl  30s;
}
#cors configuration
    if ($cors = "true") {
      add_header  'Access-Control-Allow-Origin' "$http_origin";
      add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS';
      add_header 'Access-Control-Allow-Headers' 'If-Modified-Since';
    }
}

我试着重构这段代码，就像那样

location /push/pub/ {
    push_stream_publisher                   admin;
    push_stream_channels_path               $arg_id;
    include allow/servers.*.conf;
    deny all;
}

location ~ /push/sub/(.*) {
    push_stream_subscriber                  long-polling;
    push_stream_channels_path               $1;
    push_stream_last_received_message_tag   $arg_tag;
    push_stream_last_received_message_time  $arg_time;
    push_stream_longpolling_connection_ttl  30s;

    if ($http_origin ~* "^https?://(auto|dom).*") {
        add_header 'Access-Control-Allow-Origin' "$http_origin";
        add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS';
        add_header 'Access-Control-Allow-Headers' 'If-Modified-Since';
    }
}

现在js订阅者永远倾听。服务器无响应:( 两个配置之间的根本区别是什么。我没有责备。感谢您的建议。

Answer 1

不同之处在于，在第二种情况下，if指令创建了另一个配置上下文，其中add_headers但未配置push_stream。

您应该了解重写模块的工作原理（这很棘手）：http://nginx.org/en/docs/http/ngx_http_rewrite_module.html 并尽可能避免使用if：http://wiki.nginx.org/IfIsEvil

看不出两个nginx配置之间的区别

1 个答案: