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正則表達式解析 CustomLog 格式 (PHP)

[英]Regex to parse CustomLog format (PHP)

我正在嘗試以這種格式解析 CustomLog 格式:

LogFormat "%v %{X-Forwarded-For}i %h %l %u %t \"%r\" %>s %b" MyCustomLog

這是條目的外觀 - 請注意,有一個逗號分隔在 X-Forwarded-For 標頭中傳遞的 IP。

my.server.com 24.24.24.3, 1.2.3.4 1.2.3.5 - - [18/May/2016:02:57:25 -0400] "GET /veer/eye?params=1&are=2&right=3&here=4 HTTP/1.1" 200 146351

我想捕獲以下字段:

  • x-forward-for IP(逗號分隔)
  • 遠程主機名
  • 遠程登錄名(可能是 -)
  • 遠程用戶(可能是 -)
  • [ ] 塊中的時間戳
  • 請求網址(在引號中)
  • 響應大小(最后一個值)

我對正則表達式有點生疏 - 至少在我認為我需要使用的負面前瞻的意義上?

幫助表示贊賞!

這是一個更完整的模式,應該適合你。 我更完整地將所有內容分解為一個組的一部分,甚至為這些組添加了名稱。 它與您的問題中的示例和評論中的示例相匹配。

演示: https : //3v4l.org/jMKFL

<?php
$pattern = '/(?P<hostname>[\w\.]+) '
         . '(?P<forwardedFor>(?:[\d\.]+, )*(?:[\d\.]+)|-) '
         . '(?P<remoteHostname>[\d\.]+) '
         . '(?P<remoteLogname>[^\s]+) '
         . '(?P<remoteUsername>[^\s]+) '
         . '\['
            . '(?P<requestDate>[^\]]+)'
         . '\] '
         . '"'
            . '(?P<method>\w+) '
            . '(?P<uri>[^\s]+) '
            . '(?<httpVersion>[^\"]+)'
         . '" '
         . '(?P<responseStatus>\d+) '
         . '(?P<responseSize>\d+)/';

$test = 'my.server.com 24.24.24.3, 1.2.3.4 1.2.3.5 - - [18/May/2016:02:57:25 -0400] "GET /veer/eye?params=1&are=2&right=3&here=4 HTTP/1.1" 200 146351';
$test2 = 'qa-test.test.com - 80.82.65.120 - - [18/May/2016:00:30:20 -0400] "GET // HTTP/1.1" 404 198';

preg_match($pattern, $test, $matches);
print_r($matches);

preg_match($pattern, $test2, $matches);
print_r($matches);

輸出:

Array
(
    [0] => my.server.com 24.24.24.3, 1.2.3.4 1.2.3.5 - - [18/May/2016:02:57:25 -0400] "GET /veer/eye?params=1&are=2&right=3&here=4 HTTP/1.1" 200 146351
    [hostname] => my.server.com
    [1] => my.server.com
    [forwardedFor] => 24.24.24.3, 1.2.3.4
    [2] => 24.24.24.3, 1.2.3.4
    [remoteHostname] => 1.2.3.5
    [3] => 1.2.3.5
    [remoteLogname] => -
    [4] => -
    [remoteUsername] => -
    [5] => -
    [requestDate] => 18/May/2016:02:57:25 -0400
    [6] => 18/May/2016:02:57:25 -0400
    [method] => GET
    [7] => GET
    [uri] => /veer/eye?params=1&are=2&right=3&here=4
    [8] => /veer/eye?params=1&are=2&right=3&here=4
    [httpVersion] => HTTP/1.1
    [9] => HTTP/1.1
    [responseStatus] => 200
    [10] => 200
    [responseSize] => 146351
    [11] => 146351
)
Array
(
    [0] => test.test.com - 80.82.65.120 - - [18/May/2016:00:30:20 -0400] "GET // HTTP/1.1" 404 198
    [hostname] => test.test.com
    [1] => test.test.com
    [forwardedFor] => -
    [2] => -
    [remoteHostname] => 80.82.65.120
    [3] => 80.82.65.120
    [remoteLogname] => -
    [4] => -
    [remoteUsername] => -
    [5] => -
    [requestDate] => 18/May/2016:00:30:20 -0400
    [6] => 18/May/2016:00:30:20 -0400
    [method] => GET
    [7] => GET
    [uri] => //
    [8] => //
    [httpVersion] => HTTP/1.1
    [9] => HTTP/1.1
    [responseStatus] => 404
    [10] => 404
    [responseSize] => 198
    [11] => 198
)

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