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この mod_rewrite ルールが「一致しない」のはなぜですか? (大きな書き換えログが含まれています)

tag-icon • tag-icon mod-rewrite redirect .htaccess rewrite rewritecond
この mod_rewrite ルールが「一致しない」のはなぜですか? (大きな書き換えログが含まれています)

2 つのドメインに関係するシナリオがあります。

  1. domain1.com でホストされている WordPress サイト
  2. domain2.co.uk、mod_rewrite経由でユーザーをdomain1にリダイレクトするだけ

このルールは、www. が指定されているかどうかに関係なく適用されます。(最終的には URL から削除されます。私は WWW を好みません。)

domain2.co.uk には、mod_rewrite ルールがいくつか含まれた .htaccess 以外には何もありません。ただし、ユーザーが「間違った」URL を指定した場合でも、正しい記事の URI にリダイレクトできるようにしたいと考えています (つまり、最初のスラッシュの後のコンテンツを保持する 301 リダイレクト)。

現在、次のルールセットでこれを実現しています:

RewriteCond %{HTTP_HOST} ^((www\.)?[^\.]+)\.domain2\.co\.uk [NC,OR]
RewriteCond %{HTTP_HOST} ^domain2\.co\.uk [NC]
RewriteRule ^(.*)$ http://domain1.com/$1 [R=301,L]

これはうまく機能しますが、私が望んでいるよりも醜いです。私はmod_rewriteの達人ではありませんが、私が知る限り、トップルールはすべきwww. が指定されているかどうかに関係なく一致します... しかし、そうではありません。www のないリクエストをキャッチするには、2 番目の RewriteCond が必要です。

最初の RewriteCond のみを含む書き換えログから:

[domain2.co.uk/sid#e200498][rid#e670168/initial] (3) [perdir /home/devnull/domains/domain2.co.uk/public_html/] strip per-dir prefix: /home/devnull/domains/domain2.co.uk/public_html/ -> 
[domain2.co.uk/sid#e200498][rid#e670168/initial] (3) [perdir /home/devnull/domains/domain2.co.uk/public_html/] applying pattern '^(.*)$' to uri ''
[domain2.co.uk/sid#e200498][rid#e670168/initial] (4) [perdir /home/devnull/domains/domain2.co.uk/public_html/] RewriteCond: input='domain2.co.uk' pattern='^((www\.)|[^\.]+)\.domain2\.co\.uk' [NC] => not-matched
[domain2.co.uk/sid#e200498][rid#e670168/initial] (1) [perdir /home/devnull/domains/domain2.co.uk/public_html/] pass through /home/devnull/domains/domain2.co.uk/public_html/
[domain2.co.uk/sid#e200498][rid#e653868/subreq] (1) [perdir /home/devnull/domains/domain2.co.uk/public_html/] pass through /home/devnull/domains/domain2.co.uk/public_html/index.html
[domain2.co.uk/sid#e200498][rid#e65f8b8/subreq] (1) [perdir /home/devnull/domains/domain2.co.uk/public_html/] pass through /home/devnull/domains/domain2.co.uk/public_html/index.htm
[domain2.co.uk/sid#e200498][rid#e653868/subreq] (1) [perdir /home/devnull/domains/domain2.co.uk/public_html/] pass through /home/devnull/domains/domain2.co.uk/public_html/index.shtml
[domain2.co.uk/sid#e200498][rid#e65f8b8/subreq] (1) [perdir /home/devnull/domains/domain2.co.uk/public_html/] pass through /home/devnull/domains/domain2.co.uk/public_html/index.php
[domain2.co.uk/sid#e200498][rid#e653868/subreq] (1) [perdir /home/devnull/domains/domain2.co.uk/public_html/] pass through /home/devnull/domains/domain2.co.uk/public_html/index.php5
[domain2.co.uk/sid#e200498][rid#e666c98/subreq] (1) [perdir /home/devnull/domains/domain2.co.uk/public_html/] pass through /home/devnull/domains/domain2.co.uk/public_html/index.php4
[domain2.co.uk/sid#e200498][rid#e65f8b8/subreq] (1) [perdir /home/devnull/domains/domain2.co.uk/public_html/] pass through /home/devnull/domains/domain2.co.uk/public_html/index.php3
[domain2.co.uk/sid#e200498][rid#e653868/subreq] (1) [perdir /home/devnull/domains/domain2.co.uk/public_html/] pass through /home/devnull/domains/domain2.co.uk/public_html/index.phtml
[domain2.co.uk/sid#e200498][rid#e65f8b8/subreq] (1) [perdir /home/devnull/domains/domain2.co.uk/public_html/] pass through /home/devnull/domains/domain2.co.uk/public_html/index.cgi
[domain2.co.uk/sid#e200498][rid#e66c370/initial/redir#1] (3) [perdir /home/devnull/domains/domain2.co.uk/public_html/] strip per-dir prefix: /home/devnull/domains/domain2.co.uk/public_html/403.shtml -> 403.shtml
[domain2.co.uk/sid#e200498][rid#e66c370/initial/redir#1] (3) [perdir /home/devnull/domains/domain2.co.uk/public_html/] applying pattern '^(.*)$' to uri '403.shtml'
[domain2.co.uk/sid#e200498][rid#e66c370/initial/redir#1] (4) [perdir /home/devnull/domains/domain2.co.uk/public_html/] RewriteCond: input='domain2.co.uk' pattern='^((www\.)|[^\.]+)\.domain2\.co\.uk' [NC] => not-matched
[domain2.co.uk/sid#e200498][rid#e66c370/initial/redir#1] (1) [perdir /home/devnull/domains/domain2.co.uk/public_html/] pass through /home/devnull/domains/domain2.co.uk/public_html/403.shtml
[domain2.co.uk/sid#e200498][rid#e668ca8/initial] (3) [perdir /home/devnull/domains/domain2.co.uk/public_html/] strip per-dir prefix: /home/devnull/domains/domain2.co.uk/public_html/favicon.ico -> favicon.ico
[domain2.co.uk/sid#e200498][rid#e668ca8/initial] (3) [perdir /home/devnull/domains/domain2.co.uk/public_html/] applying pattern '^(.*)$' to uri 'favicon.ico'
[domain2.co.uk/sid#e200498][rid#e668ca8/initial] (4) [perdir /home/devnull/domains/domain2.co.uk/public_html/] RewriteCond: input='domain2.co.uk' pattern='^((www\.)|[^\.]+)\.domain2\.co\.uk' [NC] => not-matched
[domain2.co.uk/sid#e200498][rid#e668ca8/initial] (1) [perdir /home/devnull/domains/domain2.co.uk/public_html/] pass through /home/devnull/domains/domain2.co.uk/public_html/favicon.ico
[domain2.co.uk/sid#e200498][rid#f160b40/initial/redir#1] (3) [perdir /home/devnull/domains/domain2.co.uk/public_html/] strip per-dir prefix: /home/devnull/domains/domain2.co.uk/public_html/404.shtml -> 404.shtml
[domain2.co.uk/sid#e200498][rid#f160b40/initial/redir#1] (3) [perdir /home/devnull/domains/domain2.co.uk/public_html/] applying pattern '^(.*)$' to uri '404.shtml'
[domain2.co.uk/sid#e200498][rid#f160b40/initial/redir#1] (4) [perdir /home/devnull/domains/domain2.co.uk/public_html/] RewriteCond: input='domain2.co.uk' pattern='^((www\.)|[^\.]+)\.domain2\.co\.uk' [NC] => not-matched
[domain2.co.uk/sid#e200498][rid#f160b40/initial/redir#1] (1) [perdir /home/devnull/domains/domain2.co.uk/public_html/] pass through /home/devnull/domains/domain2.co.uk/public_html/404.shtml

ただし、2 番目の RewriteCond を追加すると、ルールは機能し、ログには次のように表示されます。

[domain2.co.uk/sid#e200498][rid#e65fe58/initial] (3) [perdir /home/devnull/domains/domain2.co.uk/public_html/] strip per-dir prefix: /home/devnull/domains/domain2.co.uk/public_html/ -> 
[domain2.co.uk/sid#e200498][rid#e65fe58/initial] (3) [perdir /home/devnull/domains/domain2.co.uk/public_html/] applying pattern '^(.*)$' to uri ''
[domain2.co.uk/sid#e200498][rid#e65fe58/initial] (4) [perdir /home/devnull/domains/domain2.co.uk/public_html/] RewriteCond: input='domain2.co.uk' pattern='^((www\.)?[^\.]+)\.domain2\.co\.uk' [NC] => not-matched
[domain2.co.uk/sid#e200498][rid#e65fe58/initial] (4) [perdir /home/devnull/domains/domain2.co.uk/public_html/] RewriteCond: input='domain2.co.uk' pattern='^domain2\.co\.uk' [NC] => matched
[domain2.co.uk/sid#e200498][rid#e65fe58/initial] (2) [perdir /home/devnull/domains/domain2.co.uk/public_html/] rewrite '' -> 'http://domain1.com/'
[domain2.co.uk/sid#e200498][rid#e65fe58/initial] (2) [perdir /home/devnull/domains/domain2.co.uk/public_html/] explicitly forcing redirect with http://domain1.com/
[domain2.co.uk/sid#e200498][rid#e65fe58/initial] (1) [perdir /home/devnull/domains/domain2.co.uk/public_html/] escaping http://domain1.com/ for redirect
[domain2.co.uk/sid#e200498][rid#e65fe58/initial] (1) [perdir /home/devnull/domains/domain2.co.uk/public_html/] redirect to http://domain1.com/ [REDIRECT/301]

1 つのルールではなぜ機能しないのか、誰か説明を手伝ってくれませんか? 明らかなことを見逃しているような気がします。2 番目の RewriteCond は有効な回避策ですが、場当たり的でイライラします。 ;-) どなたか助けていただければ幸いです...

答え1

調べてみましょう

^((www\.)?[^\.]+)\.domain2\.co\.uk

ホストヘッダーがwww.何か.domain2.co.ukあるいは単に何か.domain2.co.ukただし、Host ヘッダーが で終わる場合にのみ一致するため.domain2.co.uk、domain2.co.uk一致しません。

もっと簡単な答え: とにかくすべてをリダイレクトしたいので、両方のRewriteConds を完全に削除するだけです。

答え2

RewriteCond %{HTTP_HOST} ^(www\.)?domain2\.co\.uk [NC]
RewriteRule ^(.*)$ http://domain1.com/$1 [R=301,L]

ルールでは、www で始まり、オプションで . と任意の数のドットが続き、その後に必須の . が続くものを検索していました。

^((www\.)?[^\.]+)\.domain2\.co\.uk

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