nginx filter

server
{
listen 80;
server_name g.zcdn.com;
index index.html;

location / {
proxy_cache cache_go;
proxy_temp_path    /dev/shm/tmp  1 1 2;
proxy_cache_valid  200 302  8h;
proxy_cache_valid  404 415     1m;
proxy_cache_valid any 10m;
proxy_cache_key $host$uri$is_args$args;

proxy_set_header Host  $host;
proxy_pass           http://localhost:18001; }

location ~* .*_(\d+)x(\d+)_(\d+)\.(JPG|jpg|gif|png|PNG)$ {
set $img_width $1;
set $img_height $2;
set $img_quality $3;
rewrite ^(.*)_\d+x\d+_\d+.(JPG|jpg|gif|png|PNG)$ $1.$2 break;
image_filter resize $img_width $img_height;
image_filter_buffer 10M;
image_filter_jpeg_quality $img_quality;

proxy_cache cache_go;
proxy_temp_path    /dev/shm/tmp  1 1 2;
proxy_cache_valid  200 302  8h;
proxy_cache_valid  404 415     1m;
proxy_cache_valid any 10m;
proxy_cache_key $host$uri$is_args$args;

proxy_pass           http://localhost:18001; #error_page     415   = /empty;
expires 10d;
}

location ~* .*_(\d+)x(\d+)_(\d+)a(90|180|270)\.(JPG|jpg|gif|png|PNG)$ {
set $img_width $1;
set $img_height $2;
set $img_quality $3;
set $img_angle $4;
rewrite ^(.*)_\d+x\d+_\d+a\d+\.(JPG|jpg|gif|png|PNG)$ $1.$2 break;
image_filter resize $img_width $img_height;
image_filter rotate $img_angle;
image_filter_buffer 10M;
image_filter_jpeg_quality $img_quality;

proxy_cache cache_go;
proxy_temp_path    /dev/shm/tmp  1 1 2;
proxy_cache_valid  200 302  8h;
proxy_cache_valid  404 415     1m;
proxy_cache_valid any 10m;
proxy_cache_key $host$uri$is_args$args;

proxy_pass           http://localhost:18001; #error_page     415   = /empty;
expires 10d;
}

location ~* .*_r(90|180|270)\.(JPG|jpg|gif|png|PNG)$ {
set $angle $1;
rewrite ^(.*)_r(90|180|270)\.(JPG|jpg|gif|png|PNG)$ $1.$3 break;
image_filter rotate $angle;
image_filter_buffer 10M;

proxy_cache cache_go;
proxy_temp_path    /dev/shm/tmp  1 1 2;
proxy_cache_valid  200 302  8h;
proxy_cache_valid  404 415     1m;
proxy_cache_valid any 10m;
proxy_cache_key $host$uri$is_args$args;

proxy_pass           http://localhost:18001; #error_page     415   = /empty;
expires 10d;

}

access_log /apps/logs/nginx/g.zcdn.com.log    log_access;
}