On 15.10.20 18:25, 0815@lenhardt.in wrote:
> 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.


I found a include file in my vhost that is removing some unwanted query
parameters (to be not part of the cache key). That include was also in
the /hotel rewrite location and removed all query parameters. So I
removed it and the cache key looks now ok.

set $c_uri $args; # e.g. "param1=true&param4=false"

# get url path into variable for cache_key
set $u_path $request_uri;
if ($request_uri ~ (.*)(\?.*)) {
set $u_path $1;
}

# remove unwanted get params
if ($c_uri ~ (.*)(?:&|^)utm_source=[^&]*(.*)) {
set $c_uri $1$2;
}

if ($c_uri ~ (.*)(?:&|^)utm_term=[^&]*(.*)) {
set $c_uri $1$2;
}

if ($c_uri ~ (.*)(?:&|^)utm_campaign=[^&]*(.*)) {
set $c_uri $1$2;
}

set $c_uri $is_args$c_uri;

if ($c_uri ~ ^\?$) {
set $c_uri "";
}

# finally we have stripped out utms and has nice cache key
set $c_uri $u_path$c_uri;

# DEBUG (disable in prd env)
#add_header X-RURI $request_uri;
#add_header X-CACHE-KEY $c_uri;
#add_header X-U-Path $u_path;

# set cleaned $c_uri as cache_key
fastcgi_cache_key "$scheme$request_method$host$c_uri";


2020/10/15 18:42:24 [debug] 10179#10179: *66 http2 request line: "GET
/hotel/3/bl-zzz-xxxccccccresort-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 18:42:24 [debug] 10179#10179: *66 http cache key:
"httpsGETdev1.restplatzboerse.at/hotel/3/bl-zzz-xxxccccccresort-spa-antigua/?ddate=2020-11-01&rdate=2021-04-30&adult=2&aid=3&dur=13,15&ibe=package"


br,
Marco

>
> br,
> Marco
>
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