java - Apache/mod_rewrite > Tomcat 编码 %26 和 "&"

Question

Apache 是我的 Web 应用程序的前端，然后我使用 mod_rewrite 将请求代理到 JBoss。到目前为止，这听起来很标准，但我遇到的问题是:如果我直接通过 jboss @ http://localhost:8080/app/page?raw=foo%26bar&page=1 访问应用程序:

request.getParameter("raw") = foo&bar

如果我通过 Apache @ http://localhost/foo%26bar&page=1

访问应用程序

request.getParameter("raw") = foo

所以在这个过程中的某个地方，%26 丢失了，取而代之的是一个 &，它截断了原始变量。

这是我的 Apache 重写规则。

RewriteRule ^/(.*) \
    http://localhost:8080/app/home?raw=$1 [L,P]

Apache 访问日志显示:http://localhost/foo%26bar&page=1

重写日志显示:http://localhost:8080/app/home?raw=foo&bar&page=1

但我希望请求是:http://localhost:8080/app/home?raw=foo%26bar&page=1

我很确定斜杠 / 也会出现这种情况，所以对我来说这是某种编码问题。有没有办法代理 URL 不变？似乎无法弄清楚这一点。

编辑:

首先我想说的是感谢 Gumbo 给我一些非常好的建议!基于这些建议，我简化了我的 Apache 配置以用于测试目的。

这是它的样子:

ServerRoot "C:/apps/xampplite/apache"
Listen 80

LoadModule rewrite_module modules/mod_rewrite.so
LoadModule log_config_module modules/mod_log_config.so

ServerAdmin postmaster@localhost
ServerName localhost:80
DocumentRoot "C:/apps/xampplite/htdocs"
ErrorLog "logs/error.log"
LogLevel debug
DefaultType text/plain

<IfModule log_config_module>
    LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
    LogFormat "%h %l %u %t \"%r\" %>s %b" common

    <IfModule logio_module>
      LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio
    </IfModule>
    CustomLog "logs/access.log" combined
</IfModule>

RewriteEngine On    
RewriteLog "C:/apps/xampplite/apache/logs/rewrite.log"
RewriteLogLevel 9 
RewriteMap escape int:escape
RewriteRule ^/(.*) http://localhost:8080/app/home?raw=${escape:$1} [L,P]

以下是我采取的步骤:启动 Apache，转到

http://localhost/foo%26bar&page=1

在我的网络浏览器中，停止 Apache。

访问日志条目:

::1 - - [15/Mar/2010:19:17:18 -0400] "GET /foo%26bar&page=1 HTTP/1.1" 403 224 "-" "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6"

重写日志条目:

::1 - - [15/Mar/2010:19:17:18 --0400] [localhost/sid#54d160][rid#5e1360/initial] (2) init rewrite engine with requested uri /foo&bar&page=1
::1 - - [15/Mar/2010:19:17:18 --0400] [localhost/sid#54d160][rid#5e1360/initial] (3) applying pattern '^/(.*)' to uri '/foo&bar&page=1'
::1 - - [15/Mar/2010:19:17:18 --0400] [localhost/sid#54d160][rid#5e1360/initial] (5) map lookup OK: map=escape key=foo&bar&page=1 -> val=foo&bar&page=1
::1 - - [15/Mar/2010:19:17:18 --0400] [localhost/sid#54d160][rid#5e1360/initial] (2) rewrite '/foo&bar&page=1' -> 'http://localhost:8080/app/home?raw=foo&bar&page=1'
::1 - - [15/Mar/2010:19:17:18 --0400] [localhost/sid#54d160][rid#5e1360/initial] (3) split uri=http://localhost:8080/app/home?raw=foo&bar&page=1 -> uri=http://localhost:8080/app/home, args=raw=foo&bar&page=1
::1 - - [15/Mar/2010:19:17:18 --0400] [localhost/sid#54d160][rid#5e1360/initial] (2) forcing proxy-throughput with http://localhost:8080/app/home

错误日志条目:

[Mon Mar 15 19:16:56 2010] [notice] Apache/2.2.12 (Win32) configured -- resuming normal operations
[Mon Mar 15 19:16:56 2010] [notice] Server built: Jul 22 2009 11:35:54
[Mon Mar 15 19:16:56 2010] [notice] Parent: Created child process 2324
[Mon Mar 15 19:16:56 2010] [debug] mpm_winnt.c(487): Parent: Sent the scoreboard to the child
[Mon Mar 15 19:16:57 2010] [notice] Child 2324: Child process is running
[Mon Mar 15 19:16:57 2010] [debug] mpm_winnt.c(408): Child 2324: Retrieved our scoreboard from the parent.
[Mon Mar 15 19:16:57 2010] [info] Parent: Duplicating socket 148 and sending it to child process 2324
[Mon Mar 15 19:16:57 2010] [info] Parent: Duplicating socket 140 and sending it to child process 2324
[Mon Mar 15 19:16:57 2010] [debug] mpm_winnt.c(605): Parent: Sent 2 listeners to child 2324
[Mon Mar 15 19:16:57 2010] [debug] mpm_winnt.c(564): Child 2324: retrieved 2 listeners from parent
[Mon Mar 15 19:16:57 2010] [notice] Child 2324: Acquired the start mutex.
[Mon Mar 15 19:16:57 2010] [notice] Child 2324: Starting 64 worker threads.
[Mon Mar 15 19:16:57 2010] [notice] Child 2324: Starting thread to listen on port 80.
[Mon Mar 15 19:16:57 2010] [notice] Child 2324: Starting thread to listen on port 80.
[Mon Mar 15 19:17:18 2010] [error] [client ::1] attempt to make remote request from mod_rewrite without proxy enabled: proxy:http://localhost:8080/app/home
[Mon Mar 15 19:17:52 2010] [notice] Parent: Received shutdown signal -- Shutting down the server.
[Mon Mar 15 19:17:52 2010] [notice] Child 2324: Exit event signaled. Child process is ending.
[Mon Mar 15 19:17:52 2010] [info] Child 2324: Accept thread exiting.
[Mon Mar 15 19:17:53 2010] [notice] Child 2324: Released the start mutex
[Mon Mar 15 19:17:53 2010] [info] Child 2324: Accept thread exiting.
[Mon Mar 15 19:17:53 2010] [info] Child 2324: 64 threads blocked on the completion port
[Mon Mar 15 19:17:54 2010] [notice] Child 2324: All worker threads have exited.
[Mon Mar 15 19:17:54 2010] [notice] Child 2324: Child process is exiting
[Mon Mar 15 19:17:54 2010] [notice] Parent: Child process exited successfully.
[Mon Mar 15 19:17:54 2010] [info] removed PID file C:/apps/xampplite/apache/logs/httpd.pid (pid=1424)

有趣的是，访问日志中的第一个条目显示了 %26，而它在重写日志的第一个条目中消失了。

还是被这个搞糊涂了...

Answer 1

尝试使用 NE flag以防止转义该字符:

RewriteRule ^/(.*) http://localhost:8080/app/home?raw=$1 [NE,L,P]

---

编辑 我想我弄错了。您需要强制转义，而不是阻止值被转义。尝试使用内部转义函数:

RewriteMap escape int:escape
RewriteRule ^/(.*) http://localhost:8080/app/home?raw=${escape:$1} [L,P]