I have to do a redirect to another host if a certain parameter/value pair is in the querystring.
So far I have
RewriteCond %{REQUEST_URI}?%{QUERY_STRING} [&\?]abc=23&?
RewriteRule ^(.*)$ http://anotherserver.com/$1 [R,NC,L]
that works for:
/index.php?id=95&abc=23
/index.php?abc=23&id=95
/index.php?id=95&abc=23&bla=123
but it also matches /index.php?id=95&abc=234 for example.
I need a pattern that matches exactly abc=23, no matter where it occurs.
Any suggestions on this? :-)
I'd try this regex (&|^)abc=23(&|$) and match is only against %{QUERY_STRING}.
The question mark makes the preceding token in the regular expression optional. E.g.: colou?r matches colour or color.
RewriteCond %{REQUEST_URI}?%{QUERY_STRING} [&\?]abc=23&?
You are matching abc=23& OR abc=23 with the rest of the string unconstrained so abc=234 is a valid match. What you really want is & or nothing else. I'm not sure if this RegExp is legal in Apache but it would be written as:
RewriteCond %{REQUEST_URI}?%{QUERY_STRING} [&\?]abc=23(&|$)
Here are the test cases I used at my favourite online RegExp tester:
abc=23&def=123
abc=234
abc=23
Related
I would like to use mod_rewrite to capture a string within brackets in my URL and do a redirect.
My URL:
something?var_a=A&var_b=(B)&var_c=C
my .httaccess file with the regex:
RewriteEngine on
RewriteRule ^/?.+var_b=\((.*)\)$ somedir/$1 [R]
I just would like to capture what's in between the round brackets, so my redirect should look something like this: somedir/B
I test my regex at http://htaccess.madewithlove.be/ but I get no match.
I don't know what I am missing here, even if I try much simpler regexes, e.g. .+var_b(.*)$ I get no match. Only if my regex was looking for a pattern at the beginning, I get a match, so for example the regex something(.*)$ works.
What am I missing here?
RewriteEngine On
RewriteCond %{QUERY_STRING} (^|&)var_b=\((.*?)\)(&|$) [NC]
RewriteRule ^.*$ somedir/%2? [R]
The reason is that RewriteRule does not receive the ?x=y part of the query. The %2 variable refers to the pattern from the last RewriteCond, while $2 would refer to the pattern from this RewriteRule. The ? at the end prevents the query part ?x=y from being automatically appended at the end of the result.
The (^|&) and (&|$) in the pattern guarantee that var_b=(B) is the complete parameter and not a part of it. Without these, the pattern would also match ?xyzvar_b=(B) or ?var_b=(B)xyz. With these, it will only match ?var_b=(B) or ?a=b&var_b=(B)&x=z etc.
I have done this: http://rubular.com/r/AHI15Tb4ju, and it match the second url (http://gamempire.localhost.it/news/tomb-pc), but I want to exclude that url and match everything that do not have the word "news/" inside (but at the same time end in the way that I have specified).
How to do that?
Basically, i want to match only the third url (http://gamempire.localhost.it/tomb-pc).
Thanks!
You can use a rule like this:
RewriteEngine On
RewriteCond %{REQUEST_URI} !/news/
RewriteRule -(?:pc|ps2|ps3|ps4|xbox-360|xbox-one|xbox|wii-u|wii|psp|ps-vita|ds|3ds|iphone|ipad|android|playstation)(.*)$ / [L,R]
Since I didn't know any action part I just redirected these matching URI patterns to / that you can change according to your need.
Try using this:
^((?!news).)*-(?:pc|ps2|ps3|ps4|xbox-360|xbox-one|xbox|wii-u|wii|psp|ps-vita|ds|3ds|iphone|ipad|android|playstation)(.*)$
It should be noted that I tried to modify your original pattern as little as possible, assuming you also needed the (.*) at the end even though it appears that this is unnecessary for your purposes, and would match strings such as
"http://gamempire.localhost-pc.it/tomb" and "http://-pcgamempire.localhost.it/tomb".
So, I have the following RegEx..
RewriteRule ^([-a-z0-9]*[A-Z\.]+.*)$ file.php?string=$1 [QSA]
The URL I want file.php to trigger for must either have capital letters or a period in it, then send the URL to the PHP script.
However, the problem I have is that this script is triggering on any URL, because of the not-truly-escaped Period.
I've tried escaping the period with a backslash, or two backslashes, or three... but none stop the generic interpretation.
What am I doing wrong?
Edit: As an example,
RewriteRule ^([-a-z0-9]*[A-Z\\.]+[-a-z0-9\/]*)$ file.php?string=$1 [QSA]
Doesn't work, but
RewriteRule ^([-a-z0-9]*\\.+[-a-z0-9\/]*)$ file.php?string=$1 [QSA]
does escape it.
Edit 2: Examples of URLs I want to redirect:
/some-page-goes-here.html
/heres-Robs/Old/Page/
And ones I don't:
/testing/one/two/
/an/actual-file.gif
EDIT 3: Old regex was:
RewriteRule ^([-a-z0-9]*[A-Z\.]+[-a-z0-9\/]*)$ file.php?string=$1 [QSA]
But while writing the post, I updated the question's regex to what you see above.
Try:
RewriteCond %{REQUEST_URI} [A-Z] [OR]
RewriteCond %{REQUEST_URI} \.html$
RewriteRule (.*) file.php?string=$1 [QSA]
When using mod_rewrite and you have several URLs to match, it is always better to use RewriteCond to filter and then apply your RewriteRule.
I don't think your problem can be what you think it is: periods in a character class are supposed to mean literal periods, not "any character". If this really is the problem, somehow, then you could change [A-Z\.]+ to ([A-Z]|\.)+; but I doubt it. Some things to try:
what happens if you comment out this line? does that successfully disable this redirect? if not, then obviously the problem isn't with this line. :-)
what happens if you make this a real HTTP redirect, by changing QSA to QSA,R? Does the destination URL look like what you expect? Maybe there are some unexpected periods or uppercase letters? (Warning: this will very likely trigger an infinite redirect loop if you try it in a browser; it'll probably be easier to try submitting the request via port-80 Telnet and seeing the actual HTTP response.)
Also, your rule doesn't quite match how you describe it. For example, your rule wouldn't match a URL like a.b.c, because you only uppercase letters and/or dots to occur in a single "clump"; if they're separated by lowercase letters, no match will occur. Is that just because you didn't want to overcomplicate the description?
I'm trying to understand mod_rewrite better and have one particular problem I think I need to get my head round first.
I am rewriting http://www.somesite.tld/a/b/c to index.php?path=a/b/c using the following
RewriteRule ^(?!index.php)(.*)$ index.php?path=$1 [NC,L]
An equivalent rewrite would, in this case, be
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ index.php?path=$1 [NC,L]
This does not work without the RewriteCond -- path=index.php would be the result without specifically ignoring files or saying 'not index.php'. Why is this?
Also, what is the ?! and ?: syntax that I sometimes see used? I do not understand the use of the ? when it is not prefixed by anything.
And why, in the first RewriteRule above, do the second pair of brackets return a match for $1?
Cheers
(?= ...) and (?! ...) is special syntax in Perl regular expressions and in PCRE, which is the regex library that Apache uses. They are, respectively, positive and negative lookahead assertions: they match an empty string if the text after it matches or does not match the content in the brackets.
They are non-capturing, so they don't define any $n (it would be pointless, since they match an empty string). (?: ...) is also non-capturing, it is used to group subexpressions.
Your first rule should work in .htaccess (but not in a virtual host configuration file), though it would be more correct to write it as
RewriteRule ^(?!index\.php$)(.*)$ index.php?path=$1 [L]
Perhaps another rule is interacting with it. You can check what exactly is being matched and rewritten with RewriteLog and RewriteLogLevel.
"!" means negation. Like a = 1 (a is equal one) a != 1 (a is not equal one);
"f" means file. So if you use together with "!", like "!-f" would be something "file does not exist". the links below may help you better:
http://www.askapache.com/htaccess/htaccess.html
http://net.tutsplus.com/tutorials/other/using-htaccess-files-for-pretty-urls/
http://corz.org/serv/tricks/htaccess2.php
I'm almost there with a mod_rewrite rule, but I've caved in :)
I need to rewrite
country/[countryname].php
to
country/[countryname]/
however, [countryname] may have an underscore like this: 'south_africa.php' and if it does I want to replace it with a hypen: 'south-africa/'
I also want to match if the country has numbers following it: 'france03.php' to 'france/'
Heres my rule, its almost there but its still adding a hyphen even if there is no second part after the underscore.
RewriteRule ^country/(.*)_(.*?)[0-9]*\.php$ country/$1-$2 [R=301,L]
so currently 'country/south_.php' becomes 'country/south-/'
Can someone please help me find the missing piece of the puzzle? Thanks.
Try this:
RewriteRule ^country/([^_]*)_([^_]*?)\d*\.php$ country/$1-$2 [R=301,L]
This rule will match urls with a single underscore - you'll need a different rule for more underscores or none.
If you want to make sure $2 contains only letter and isn't empty, change ([^_]*?) it to ([a-zA-Z]+).
Alternatively you could do it over several passes:
# If request is for something in "country/"
RewriteCond %{REQUEST_URI} ^country/.+\.php$
# Replace underscore and digits with (single) hyphen
RewriteRule [_0-9]+ \-
# Remove extension (and possible trailing hyphen)
RewriteRule ^(.*)-?\.php$ $1
# Final rewrite
RewriteRule ^country/(.*)$ country/$1 [R=301,L]
Untested ... and not necessarily "pretty" :)