Rewrite Nginx Url only on specific path - nginx

So I have a main path https://app.example.com and I want it to keep it that, way but on all https://app.expample.com/p/* paths I want it to be rewritten to a short version of the url like. How can I achieve this?
I tried
location = /p/(.*)$ {
rewrite ^ https://example.com/p/$request_uri permanent; and also return 301 https://example.com/p/$request_uri;
}
but this resulted in too many http redirects and an error

Related

Rewrite Nginx URLs with Parameters (After a Question Mark)

I have URLS in this format:
/wiki/index.php?title=Widget
/wiki/index.php?title=Blue
/wiki/index.php?title=Red
/wiki/index.php?title=Etc
I want to be able to match any URL that has the pattern "/wiki/index.php?title=" or even just "/wiki/index.php" (but so it will pick up the above URLs with the "?") and then redirect them to simply /wiki/ (all pages that match the above pattern go to the single url /wiki/)
I used to have a Mediawiki install on the /wiki/ directory with a lot of pages in the format above. However now I am running a Wordpress install and it is using the /wiki/ directory. I don't need each rewritten URL to go to a different URL (I know that is difficult as my source URLs have parameters) but right now they all 404 and so I just want to direct to them /wiki/ at least.

Simple URL rewriting
The easiest case (rewrite all /wiki/index.php requests with any arguments) can be done by this config (inside your server block):
location = /wiki/index.php {
rewrite .* /wiki/?;
}
The '?' sign at the end of second rewrite parameter is a trick to completely remove any request arguments. Without it, request /wiki/index.php?title=Widget will be rewrited to /wiki/?title=Widget.
Rewriting only requests matching /wiki/index.php?title=... is a more complex, I don't know how to do it without if construction:
location = /wiki/index.php {
if ($request_uri ~ ^/wiki/index\.php\?title=) {
rewrite .* /wiki/?;
}
}
If you want to generate HTTP 301 or 302 redirect instead of simple URL rewriting, you can use redirect (for 301 temporary redirect) or permanent (for 302 permanent redirect) flag at the end of rewrite directive parameters (see documentation).
Rewriting URLs to individual pages
This task is not as difficult as it seems. For redirecting /wiki/index.php?title=Widget to /wiki/Widget, /wiki/index.php?title=Blue to /wiki/Blue etc. we can make use of map directive:
map $request_uri $uri_suffix {
~^/wiki/index\.php\?title=([^&]*) $1;
}
server {
...
location = /wiki/index.php {
rewrite .* /wiki/$uri_suffix?;
}
...
}
Please note that map directive must be declared outside your server configuration block!

Redirect AMP files on nginx

I'm trying to make redirect on nginx but unfortunately it doesn't work.
What I'd like to achieve, it is to redirect amp files on mobile.
What I'd like to do :
from
https://www.example.com/uri-759.html
to
https://www.example.com/uri-759-amp.html
What I did as redirect
if ($mobile_redirect = perform) {
redirect ^(.*)(\.html)$ $1-amp$2 permanent;
}
what I obtain
https://www.example.com/uri-759-amp-amp-amp-amp-amp-amp-amp-amp.html
Does someone have a solution to perform this redirection ?

You can use a negative lookbehind assertion to avoid matching the rewritten URI.
For example:
rewrite ^(.*)(?<!-amp)(\.html)$ $1-amp$2 permanent;
See this document for more.

Nginx rewrite rule: Add subfolder to URI if not there

Hello I'm trying to write a Nginx rewrite rule that adds a subdirectory to my URL if it's missing. For example, I need http://example.com to be re-written (and redirected) to http://example.com/legacy-app. Can't seem to find the proper example to do this.

You can use a rewrite directive, but an exact match location block is most efficient:
location = / {
return 301 /legacy-app;
}
See this document for more.

We ended up using this:
rewrite ^/$ /legacy-app/ last;

nginx rewrite rule to prepend something to a url

I want to rewrite all my JPG file URLs using mobify CDN. For that, all I have to do is prepend the URL
https://ir0.mobify.com/jpg50/ to my existing URL. So for example, if I have the URL
http://xxx.yyy.com/wp-content/uploads/2290/07/abc.png then the user has to be redirected to
https://ir0.mobify.com/jpg50/http://xxx.yyy.com/wp-content/uploads/2290/07/abc.jpg
I wrote the following code in my nginx config. I tested the regexs at regexlib and they seem to be fine.Still do not understand what is wrong with my config. Please help.
location ~ \.jpg$
{
rewrite ^http://(.*).jpg$ https://ir0.mobify.com/jpg50/$uri last;
}

Try this ...
location ~ \.jpg$ {
return 301 https://ir0.mobify.com/jpg50$request_uri;
}

Rewrite old image url with nginx

I have a single image that I renamed and need to redirect from the old image url to the new one my server uses nginx, I'm not having much success with the following rewrite:
rewrite ^/assets/avatar/avatar.png /assets/avatar/newavatar.png permanent;
Does someone know what is wrong?

If you want to use rewrite you need to use a full path to the new location
rewrite ^/assets/avatar/avatar.png http://example.com/assets/avatar/newavatar.png permanent;
A better way though is using a return
location /assets/avatar/avatar.png {
return 301 $scheme://example.com/assets/avatar/newavatar.png;
}
If you want to just rewrite, you need to change permanent to last or break

Resources