如何从路径到查询进行mod_rewrite？

Question

I have url like:

http://olddomain.com/demo?abc=ced&ghi=jkl

And I would like to rewrite it to separate domain as query:

http://newdomain.com/legacy?url=http%3A%2F%2Folddomain.com%2Fdemo%3Fabc%3Ddef%26ghi%3Djkl

Right now I have something like this:

RewriteRule (.*) http://newdomain.com/legacy?url=%{HTTP_HOST}%{REQUEST_URI}?%{QUERY_STRING}

The problem is that the output is:

http://newdomain.com/?url=olddomain.com/demo?abc=def&ghi=jkl

So no http:// and characters /, ?, = and & are not escaped. In addition to that if there will be no query in original requests there will be trailing ?, but that's probably not big problem.

Answer 1

You may try this:

Options +FollowSymLinks
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} ^/demo [NC]
RewriteRule .*   http://newdomain.com/legacy?url=http://%{HTTP_HOST}%{REQUEST_URI}  [L,R,QSA]

Redirects

http://olddomain.com/demo?abc=ced

To

http://newdomain.com/legacy?url=http://olddomain.com/demo?abc=ced

All strings are assumed to be fixed, except the incoming query.

As there was no response to my comment, this answer assumes:

• &ghi=jkl in the query appended to the substitution URL (In the question), is also part of the query in the incoming URL

• http://example.com/ is the same http://newdomain.com/ .