SHARE-343 Serve .webp images

[dmetzner]

• automatically serving webp images if supported by the client. Fallback remains jpeg/png

• new local Nginx config (must be adapted manually):

# First, make sure that NGINX' `mime.types` file includes 'image/webp webp'
include /etc/nginx/mime.types;

# Checking if HTTP's `ACCEPT` header contains 'webp'
# if not supported - just download uri
# if supported - define path that cant be found .. fallback will be webp converter
map $http_accept $handle_webp {
  default $uri;
  "~*webp" "use_webp_fallback";
}

server {
    listen 443 ssl;
    listen [::]:443 ssl;
    client_max_body_size 768M;

    ssl_certificate     /etc/ssl/certs/ssl-cert-snakeoil.pem;
    ssl_certificate_key /etc/ssl/private/ssl-cert-snakeoil.key;
    ssl_protocols       SSLv3 TLSv1 TLSv1.1 TLSv1.2;
    ssl_ciphers         ECDHE-RSA-AES256-SHA384:AES256-SHA256:RC4:HIGH:!MD5:!aNULL:!EDH:!AESGCM;
    fastcgi_param HTTPS on;

    root /var/www/catroweb/pr829/public/;

    server_name pr829-web.catrobat.ist.tugraz.at;

    location ~* ^.+\.(jpe?g|png) {
        # images should be served in webp format if supported by client
        set $args $args&source=$document_root$fastcgi_script_name;
        try_files $handle_webp /webp-on-demand.php$is_args$args;                                                                                                                                                                                                    
    }

    location / {
        # try to serve file directly, fallback to index.php
        try_files $uri /index.php$is_args$args;
    }

    location ~ \.php(/|$) {
        fastcgi_pass unix:/var/run/php/php7.4-fpm.sock;
        fastcgi_split_path_info ^(.+\.php)(/.*)$;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param HTTPS on;
        fastcgi_param HTTP_SCHEME https;
        keepalive_timeout 90;

        fastcgi_buffers 32 4k;                                                                                                                                                                                                                                                                                                                                       
        fastcgi_buffer_size 32k;

        send_timeout 300;
        fastcgi_send_timeout 300;
        fastcgi_read_timeout 300;

        # Prevents URIs that include the front controller. This will 404:
        # http://domain.tld/index.php/some-path
        # Remove the internal directive to allow URIs like this
        internal;
    }

    access_log /var/log/nginx/access.log combined;
    error_log /var/log/nginx/error.log warn;

    location ~ \.php$ {
        include snippets/fastcgi-php.conf;
        fastcgi_pass unix:/run/php/php7.4-fpm.sock;
    }
}

• Docker config fixed

• new local VirtualHost Apache settings (must be adapted manually):

<VirtualHost *:80>
        ServerName share
        ServerAlias share.catrob.at
        DocumentRoot /var/www/catroweb

        <Directory /var/www/catroweb>

             RewriteEngine On

             # Redirect images to webp-on-demand.php (if browser supports webp)
             RewriteCond %{HTTP_ACCEPT} image/webp
             RewriteCond %{REQUEST_FILENAME} -f
             RewriteRule ^(.*)\.(jpe?g|png)$ /webp-on-demand.php?source=%{SCRIPT_FILENAME} [NC,L]
             AddType image/webp .webp

             # Default Symfony routing
             DirectoryIndex /index.php
             FallbackResource /index.php

        </Directory>

        SetEnvIf Authorization "(.*)" HTTP_AUTHORIZATION=$1

        ErrorLog ${APACHE_LOG_DIR}/error.log
        CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

May have to run:

a2enmod rewrite
systemctl restart apache2

[codecov]

Codecov Report

Merging #829 into develop will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             develop     #829   +/-   ##
==========================================
  Coverage      43.43%   43.43%           
  Complexity      4308     4308           
==========================================
  Files            569      569           
  Lines          15116    15116           
==========================================
  Hits            6565     6565           
  Misses          8551     8551           

Flag	Coverage Δ	Complexity Δ
#behat	41.79% <ø> (ø)	4308.00 <ø> (ø)
#phpunit	7.71% <ø> (ø)	4308.00 <ø> (ø)

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[HCrane]

LGTM and works accordingly -- native IOS tests pending!