Nginxのリダイレクト設定のメモ

個人的なメモなので注意
この辺あれば大体カバーできるかと

# 302の場合
  location ^~ /hoge/foo.html {
    rewrite ^(.*)$ http://example.com/hoge/foo.html redirect;
  }

# 301の場合 
 location ^~ /foo/bar.html {
    rewrite ^(.*)$ http://example.com/foo/ permanent;
  }

# ホスト名等引き継ぎ
  location ^~ /hoge {
    proxy_set_header Host $host;
    proxy_set_header X-Proto $http_x_forwarded_proto;
    proxy_pass http://127.0.0.1$request_uri;
  }

# 特定のクエリの場合だけ転送
  location ^~ /hoge/foo.php {
    if ($args ~ "(.*)&?hogehoge=01&foobar=1") {
      set $args $1$2;
      rewrite ^(.*)$ http://example.com/hoge/foo.aspx?hogehoge=foobar permanent;
    }

    if ($args ~ "(.*)&?hogehoge=01&hoge=2") {
      set $args $1$2;
      rewrite ^(.*)$ http://example.com/hoge/foo.aspx?hogehoge=hoge permanent;
    }
  }

# 特定のパスを転送
  location ~* ^/hoge/(.*)/info.html {
    rewrite /([^/]*)/(.*) http:/example.com/$2 redirect;
  }

# HTTPSでのアクセス時だけ転送(ELB経由とか)
  location ^~ / {
    if ($http_x_forwarded_proto = "https") {
      rewrite ^(.*)$ https://example.com$request_uri redirect;
      break;
    }
  }

# 特定のVirtualHostで/あり無しの判断をしたい
# 明示的に分けておく
# 例 :
#  sample.com/hoge/foo/bar  => example.com/hoge/foo/bar
#  sample.com/hoge/foo/bar/ => example.com/hoge/foo/bar  
 location ^~ /hoge/foo/ {
   if ($request_uri ~ "(.+)/$") {
     rewrite ^(.+)/$ http://example.com$1 permanent;
   }
   if ($request_uri ~ "(.*)"){
     rewrite ^(.*)$ http://example.com$1 permanent;
   }
 }