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Apache RewriteRule与RewriteMap

rewritemap mod-rewrite apache

2

Glen Solsberry · 技术社区 · 16 年前

我有一本书 RewriteMap 看起来是这样的:

Guide           1
Mini-Guide      2
White Paper     3

我把它包括在 Apache

RewriteMap legacy txt:/var/www/site/var/rewrite_map.txt

我想创建一个 RewriteRule 处于这个位置;

RewriteRule ^/section/downloads/(${legacy})/(.*)$ /blah.php?subsection=${legacy:%1}&title=$2

我知道我可以用 ${legacy} 在右边,但我可以在左边使用它吗?如果可以,如何使用?

3 回复 | 直到 16 年前

1

7

matpie 16 年前

将重写规则更改为:

# Put these on one line
RewriteRule ^/section/downloads/([a-zA-Z-]+)/(.*)$
            /blah.php?subsection=${legacy:$1}&title=$2

第一个分组捕获传入URL中的字符串。替换中的$1将其应用于命名映射。要设置默认值,请更改 ${legacy:$1} 到 ${legacy:$1|Unknown} .

最后,如果您只希望规则处理映射文件中的值,请添加 RewriteCond :

RewriteCond ${legacy:$1|Unknown} !Unknown
# Put these on one line
RewriteRule ^/section/downloads/([a-zA-Z-]+)/(.*)$
            /blah.php?subsection=${legacy:$1}&title=$2

Unknown ),然后运行下一条规则。否则,请跳过规则并继续。

Apache RewriteMap

2

hqx5 13 年前

# %1 will be the subpattern number1 afterwards
RewriteCond %{REQUEST_URI} ^/section/downloads/(.*)
# check if there is no mapping for %1
RewriteCond ${legacy:%1} !^$
# if there is rewrite it
RewriteRule ^/(.*) /blah.php?subsection=${legacy:%1}&title=$2 [R]

3

1

Cheeso 16 年前

但是
如果未找到捕获的值,则可以指定默认值。这种方式:

## all on one line
RewriteRule ^/section/downloads/([a-zA-Z-]+)/(.*)$
        /blah.php?subsection=${legacy:$1|defaultValue}&title=$2

将“defaultValue”替换为您喜欢的任何内容。例如,如果在映射中找不到给定的参数,则为0(零)或“notfound”。

如果您选择使用另一个规则,则它将如下所示:

## all on one line
RewriteRule ^/section/downloads/([a-zA-Z-]+)/(.*)$
        /blah.php?subsection=${legacy:$1|notFoundMarker}&title=$2

## This rule fires if the lookupKey was not found in the map in the prior rule.
RewriteRule ^/blah.php?subsection=notFoundMarker  /404.php   [L]