Question

我有一个要求，我必须从远程主机名中提取值并在标题中设置它，例如，如果URL是这样的 -
http://data1-data2.server.com/someuri

从上面的例子中，需要提取data1和data2并将其设置在标题中，即X-HEADER1 = data1＆amp; X-HEADER2 = DATA2。

我最初尝试过RewriteRule，但发现它只适用于URI而不适用于服务器名称

RewriteRule (?<=//)(.*)(?=-) - [E=INFO_REQUEST_CONTEXT_1:$1,NE]
RewriteRule (?<=-)(.*?)(?=[.]) - [E=INFO_REQUEST_CONTEXT_2:$1,NE]
RequestHeader set X-HEADER1 "%{INFO_REQUEST_CONTEXT_1}e"
RequestHeader set X-HEADER2 "%{INFO_REQUEST_CONTEXT_2}e"

使用什么是正确的配置？

Answer 1

以下配置有效，

# Extract data1 from URL and set the header
SetEnvIf Host "(.*)(?=-)" var1=$1   
RequestHeader set X-HEADER1 %{var1}e env=var1
# Extract data2 from URL and set the header 
SetEnvIf Host "(?<=-)(.*?)(?=[.])" var2=$1  
RequestHeader set X-HEADER2 %{var2}e env=var2

Answer 2

启用mod_rewrite和mod_headers至httpd.conf（如果尚未启用），然后将此代码放入DOCUMENT_ROOT/.htaccess文件中：

RewriteEngine On

# capture REMOTE_HOST components in env variables
RewriteCond %{REMOTE_HOST} ^([^-]+)\.([^.]+)\.
RewriteRule ^ - [E=INFO_REQUEST_CONTEXT_1:%1,E=INFO_REQUEST_CONTEXT_2:%2,L]

## set custom response headers to be used in server side scripts
RequestHeader set X-HEADER1 "%{INFO_REQUEST_CONTEXT_1}e"
RequestHeader set X-HEADER2 "%{INFO_REQUEST_CONTEXT_2}e"

## set custom response headers    
Header always set X-HEADER1 "%{INFO_REQUEST_CONTEXT_1}e"
Header always set X-HEADER2 "%{INFO_REQUEST_CONTEXT_2}e"

mod_headers reference

Apache conf从remotehost获取值并在header中设置

2 个答案: