Logstash：将 URL 参数获取到哈希值中

我正在尝试使用 Logstash 和 ElasticSearch 来监视我的 Apache Web 服务器活动。目前，它工作得很好，但我需要有关我的请求字段的更多具体信息。 此时我的logstash配置是：

filter {
  grok { match => { "message" => "%{COMBINEDAPACHELOG}" } }
  grok { match => { "request" => [ "url", "%{URIPATH:url_path}%{URIPARAM:url_params}?" ]} }
   urldecode{ field => "url_path" }
   mutate { gsub =>  ["url_params","\?","" ] }
   kv {
     field_split => "&"
     source => "url_params"
     prefix => "url_param_"
   }
   date { match => [ "timestamp" , "dd/MMM/yyyy:HH:mm:ss Z" ] }
   geoip { source => "clientip" }
   useragent { source => "agent" }
 }

获取基本的 apache 日志：

255.254.230.10 - - [11/Dec/2013:00:01:45 -0800] "GET /xampp/boreal%3A123456/status.php?pretty=true&test=boreal%3A12345 HTTP/1.1" 200 3891 "http://cadenza/xampp/navi.php" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:25.0) Gecko/20100101 Firefox/25.0"

第一个配置的结果是：

{
         "message" => "255.254.230.10 - - [11/Dec/2013:00:01:45 -0800] \"GET /xampp/boreal%3A123456/status.php?pretty=true&test=boreal:%3A12345 HTTP/1.1\" 200 3891 \"http://cadenza/xampp/navi.php\" \"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:25.0) Gecko/20100101 Firefox/25.0\"",
        "@version" => "1",
      "@timestamp" => "2013-12-11T08:01:45.000Z",
            ...
         "request" => "/xampp/boreal%3A123456/status.php?pretty=true&test=boreal%3A12345",
        "url_path" => "/xampp/boreal:123456/status.php",
      "url_params" => "pretty=true&test=boreal%3A12345",
"url_param_pretty" => "true",
  "url_param_test" => "boreal%3A12345",
           ...    
}

并且（在梦想世界中），我希望对 url 参数有这样的响应：

{
         ...
         "request" => "/xampp/boreal%3A123456/status.php?pretty=true&test=boreal%3A12345",
        "url_path" => "/xampp/boreal:123456/status.php",
      "url_params" => {
                "pretty" => "true",
        "url_param_test" => "boreal:12345"
      },
           ...    
}

我的愿望

• url_params 成为一个哈希数组。
• 该散列的每个键都是参数的名称
• 每个对应的值将是 urldecode 值

问题

• 我是否需要创建自己的插件（我还不熟悉 ruby​​）？
• 是否存在现有插件（我没有找到......可能是错误的搜索）？
• 这是一种无需插件即可实现的方法吗？

感谢您的帮助（对我的英语感到抱歉）

Renaud

解决方案 ：

感谢瓦尔，他找到了解决方案。我将配置更改为：

grok { match => { "request" => [ "url", "%{URIPATH:url_path}%{URIPARAM:url_params}?" ]} }
urldecode{ field => "url_path" }
mutate { gsub =>  ["url_params","\?","" ] }
kv {
  field_split => "&"
  source => "url_params"
  target => "url_params_hash"
}
urldecode{ field => "url_params_hash" }

使用此解决方案，即使“&”(%26) 字符进入 url_params 字符串，分割也是正确的。

您几乎可以使用kv筛选。您需要稍微更改其配置。

您还需要添加另一个urldecode过滤器用于url_params就在另一条路径之后

urldecode{ field => "url_path" }
urldecode{ field => "url_params" }
mutate { gsub =>  ["url_params","\?","" ] }
kv {
  field_split => "&"
  source => "url_params"
  target => "url_params_hash"
}

你会得到这样的东西：

{
        "message" => "255.254.230.10 - - [11/Dec/2013:00:01:45 -0800] \"GET /xampp/boreal%3A123456/status.php?pretty=true&test=boreal:%3A12345 HTTP/1.1\" 200 3891 \"http://cadenza/xampp/navi.php\" \"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:25.0) Gecko/20100101 Firefox/25.0\"",
       "@version" => "1",
     "@timestamp" => "2013-12-11T08:01:45.000Z",
"url_params_hash" => {
         "pretty" => "true",
           "test" => "boreal:12345"
     }
}