Nginx rewrite question mark - redirect

I want to redirect an url like
http://my-site.fr/?param1=xx&param2=xx&param3==xx to the homepage but that doesn't work.
Could you help me ?
I test many syntax but nothing work correctly
rewrite ^/?param1=xx&param2=xx&param3==xx http://my-site.fr permanent;
Could you help me ?
Thank you


The ? and anything following is the query string and is not part of the normalised URI used by nginx in location and rewrite directives.
You could test for the presence of a query string then use rewrite to remove them:
if ($args) {
rewrite ^/$ /? permanent;
}
See this document for details.


Syntax :
if ($args ~ "(^|&)param1=xx($|&)"){
set $rule_0 1$rule_0;
}
if ($args ~ "(^|&)param2=xx($|&)"){
set $rule_0 2$rule_0;
}
if ($args ~ "(^|&)param3=xx($|&)"){
set $rule_0 3$rule_0;
}
if ($rule_0 = "321"){
rewrite ^/$ /? permanent;
}

Related

Prevent API URL from redirection. (Nginx - Website redirection)

I have to redirect users from website to mobile. I have added the following code for this -
set $mobile_rewrite do_not_perform;
## chi http_user_agent for mobile / smart phones ##
if ($http_user_agent ~* "(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino") {
set $mobile_rewrite perform;
}
if ($http_user_agent ~* "^(1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-)") {
set $mobile_rewrite perform;
}
## redirect to m-development.abc.com ##
if ( $mobile_rewrite = perform) {
rewrite ^ http://m-development.abc.com$request_uri? redirect;
break;
}
The problem is it redirects the API as well. In order to prevent this, I added the following code -
location ~* /api.*$/ { set $mobile_rewrite do_not_perform; }
Above the line ## redirect to m-development.abc.com ##
But this does not work.
Can someone suggest the modification required in this line?

I would recommend nested location and avoid the if statement.
Especially since
If Is Evil
Handle the redirect inside the location - there is an excellent explanation here nginx url rewriting: difference between break and last and use the Negated Regular Expressions in location.
Define your configuration file as such -
location ~ "/example*" { # location include the cases you want to redirect
location ~ "!?/api/*" {
#do regular opperation
}
#redirect the way you want
}
Good Luck!

NGINX Config: How to redirect array of URLs to home page

I would like an array of URLs, let's say ['/about','/supported-software', '/the-team', ...] to simply redirect to /.
Do I need to write multiple location { } blocks?
I'm new to NGINX configuration so any guidance would be very much appreciated!

If the array entries are exact matches, then the following locations should give you the best performance:
location = /about { return 301 $scheme://$host; }
location = /supported-software { return 301 $scheme://$host; }
location = /the-team { return 301 $scheme://$host; }
# ... or put these in an included file
If they are not exact matches, a map may be better:
map $uri $send_home {
~^/about/? 1;
~^/supported-software/? 1;
~^/the-team/? 1;
# ... or put these in an included file
}
server {
# ...
if ($send_home) {
return 301 $scheme://$host;
}
# ...
}
The map would allow more flexible redirects like:
/about
/about/
/about/stuff

Redirect rules with "+" in the string not working

I'm using Nginx and have setup some redirect rules in the .conf for the site, eg
if ($query_string ~ "Search=shelving"){ rewrite .*$ /shelving.html? redirect; }
So any url with "Search=shelving" will redirect to /shelving.html
This works fine, but I have other rules that have + in the string, which are not working eg
if ($query_string ~ "Search=metal+shelving"){ rewrite .*$ /shelving.html? redirect; }
this is not working, and I think that the + is breaking it, is there anyway around this?
Thanks
Edit:
An example of an url I'm look to redirect is:
https://example.com/SearchResults.aspx?Search=metal+shelving
to
https://example.com/shelving.html

You should just update your nginx rule like this
if ($query_string ~ "Search=metal\+shelving"){ rewrite .*$ /shelving.html? redirect; }

I would write something like this:
map $arg_search $redirect_url {
default "";
"metal shelving" /shelving.html;
"metal+shelving" /shelving.html;
"metal%2bshelving" /shelving.html;
"metal%2Bshelving" /shelving.html;
}
server {
...
if ($redirect_url) {
return 301 $redirect_url;
}
...
}
Just to cover all possible url encodings.

Set Nginx redirect rule priority

I have nginx+php-fpm and some rewrite rules for sef-urls.
The problem is that all my custom redirects/rewrites are ignored and request going to php script instead redirecting.
Part for sef-links:
if ($request_filename !~ ".(png|gif|ico|swf|jpe?g|js|css)$"){
set $rule_0 1$rule_0;
}
if (!-f $request_filename){
set $rule_0 2$rule_0;
}
if (!-d $request_filename){
set $rule_0 3$rule_0;
}
if ($rule_0 = "321"){
rewrite /. /index.php?sef_rewrite=1 last;
}
And I want to do that redirect:
location = /first.html {
return 301 /second.html;
}

You need to thing in terms of nginx's locations and rules. Then it will be much easier to write proper config. Try this one:
location / {
# replacement for last three `if`s
try_files $uri $uri/ /index.php?sef_rewrite=1;
}
# here is you redirect
location = /first.html {
return 301 /second.html;
}
# this is replacement for first `if`
location ~ \.(png|gif|ico|swf|jpe?g|js|css)$ {
# serve static files
}
# I'm sure you have this block somewhere
location ~ \.php$ {
# serve php
}
Also these articles worth to read them:
http://wiki.nginx.org/Pitfalls
http://wiki.nginx.org/IfIsEvil

Why rewrite directive causes "301 Moved Permanently" with Nginx?

Below is a much simplified version of what I have in the configuration file of a server run by Nginx 1.2.5, yet it causes 301 Moved Permanently with Location: http://example.com/phpmyadmin/ before serving data, which is not what I expected from the default behavior of the rewrite directive.
server {
listen 80;
location /pma {
rewrite ^ /phpmyadmin;
}
location /phpmyadmin {
root /var/www;
index Documentation.html;
}
}
When I go to http://example.com/pma in a browser, the data is served but the URL in the address bar changes to http://example.com/phpmyadmin/ while it was supposed to stay http://example.com/pma.
How do I avoid Nginx sending 301 Moved Permanently so that it doesn't expose the actual directory structure on my server?

Try alias:
server {
listen 80;
location /pma {
alias /phpmyadmin;
}
location /phpmyadmin {
root /var/www;
index Documentation.html;
}

I think that you need to use alias instead of rewrite. Rewrite creates a "new" URL, so it makes a redirect
server {
listen 80;
location /pma {
alias /var/www/phpmyadmin;
index Documentation.html;
}
location /phpmyadmin {
root /var/www;
index Documentation.html;
}
}