Hi!

This is the first time I am doing rewrites with a fastcgi backend (php-fpm).

This is my fpm location which is working fine on a ubuntu 18.04 VM:

# fpm-config
location ~ \.php$ {


include snippets/fastcgi-php.conf;
fastcgi_pass unix:/run/php/php-fpm-typo3.sock;
fastcgi_param HTTPS 'on';

fastcgi_read_timeout 240;
# cache settings
fastcgi_cache html_cache;
fastcgi_cache_valid 200 404 60m;
fastcgi_cache_bypass $no_cache_allowed;

fastcgi_cache_bypass $cookie_be_typo_user;
fastcgi_cache_bypass $eID_search_no_cache;


}


in the http section:

http {
...
...

fastcgi_cache_path /var/cache/nginx/proxy_cache levels=1:2
keys_zone=html_cache:10m max_size=5120m inactive=60m use_temp_path=off;

fastcgi_cache_key "$scheme$request_method$host$request_uri";

fastcgi_buffer_size 128k;
fastcgi_buffers 4 256k;
fastcgi_busy_buffers_size 256k;


...
}


After adding this location in the fpm vhost the caching is not working
as expected and delivers the same page for each request:


location ~ ^/hotel/([0-9]+)/.* {
rewrite ^/hotel/([0-9]+)/.*
/index.php?id=3238&user_kuoniibefe_pi3[iff]=$1 break;


include snippets/fastcgi-php.conf;
fastcgi_param REQUEST_URI
$fastcgi_script_name?$query_string;
fastcgi_pass unix:/run/php/php-fpm-typo3.sock;
fastcgi_param HTTPS 'on';

fastcgi_read_timeout 240;
# cache settings
include /etc/nginx/conf.d/fcgi_cache_settings.inc;

}

The location block is used to rewrite URLs like
/hotel/1234/bla?x=1&...

to
/index.php?h=1234&.....

but in this case the cache key is missing all the query parameters:

2020/10/15 17:27:51 [debug] 825#825: *1 http2 request line: "GET
/hotel/3/bl-zzz-xxxccccresort-spa-antigua/?ddate=2020-11-01&rdate=2021-04-30&adult=2&aid=3&dur=13,15&ibe=package
HTTP/2.0"
2020/10/15 17:27:51 [debug] 825#825: *1 http cache key:
"httpsGETdev1.restplatzboerse.at"


with other URLs the cache key is correct:
2020/10/15 17:27:30 [debug] 32644#32644: *761 http2 request line: "GET
/index.php?id=3238&user_kuoniibefe_pi3[iff]=3&ddate=2020-11-01&rdate=2021-04-30&adult=2&aid=3&dur=13,15&ibe=package
HTTP/2.0"
2020/10/15 17:27:30 [debug] 32644#32644: *761 http cache key:
"httpsGETdev1.restplatzboerse.at/index.php?id=3238&user_kuoniibefe_pi3[iff]=3&ddate=2020-11-01&rdate=2021-04-30&adult=2&aid=3&dur=13,15&ibe=package"


My question is why is the cache key incomplete with request that are
rewritten? How could I get the correct cache key after rewriting the
/hotel/1234/bla request.

The fastcgi_cache_key parameter in the http block is only once allowed,
so I can not use another fastcgi_cache_key parameter in the rewrite
location block.

br,
Marco

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