1

.gitignore

@@ -0,0 +1 @@
+ssl/*

0010-cache.conf

@@ -0,0 +1,106 @@
+server {
+      listen 80;
+	server_name cdn.playemulator.io www.playemulator.io static.playemulator.io images.playemulator.io;
+      root /srv/playemulator/data;
+  index index.html index.htm;
+  #  access_log /srv/steamcache/logs/access.log steamcache-default;
+  #  error_log /srv/steamcache/logs/error.log;
+  proxy_temp_path /tmp/nginx/ 1 2;
+
+  resolver 8.8.8.8;
+
+#  location / {
+#     try_files $uri @mirror;
+#     #     access_log /srv/steamcache/logs/access.log steamcache-local;
+#  }
+
+  location / {
+     proxy_next_upstream error timeout http_404;
+     proxy_pass http://$host$request_uri;
+     proxy_redirect off;
+     proxy_set_header Host $host;
+     proxy_set_header X-Real-IP $remote_addr;
+     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+     add_header X-Mirror-Upstream-Status $upstream_status;
+     add_header X-Mirror-Upstream-Response-Time $upstream_response_time;
+     add_header X-Mirror-Status $upstream_cache_status;
+     add_header Host $host;
+     #     access_log /srv/steamcache/logs/access.log steamcache-other;
+  }
+
+  location @mirror {
+     proxy_store on;
+     proxy_store_access user:rw group:rw all:r;
+     proxy_next_upstream error timeout http_404;
+     proxy_pass https://$host;
+#$request_uri;
+     proxy_redirect off;
+#     proxy_set_header Host $host;
+#     proxy_set_header X-Real-IP $remote_addr;
+#     proxy_set_header X-Forwarded-For proxy_add_x_forwarded_for;
+#     add_header X-Mirror-Upstream-Status $upstream_status;
+#     add_header X-Mirror-Upstream-Response-Time  $upstream_response_time;
+#     add_header X-Mirror-Status $upstream_cache_status;
+     #     access_log /srv/steamcache/logs/access.log steamcache-remote;
+  }
+}
+
+server {
+      listen 443 ssl http2;
+        proxy_cache default_cache;
+
+	server_name cdn.playemulator.io www.playemulator.io static.playemulator.io images.playemulator.io;
+#	ssl_certificate     www.example.com.chained.crt;
+#	ssl_certificate_key www.example.com.key;
+	ssl_certificate     /etc/ssl/local/cache.chained.crt;
+	ssl_certificate_key /etc/ssl/local/cache.key;
+
+      root /srv/playemulator/data;
+  index index.html index.htm;
+  #  access_log /srv/steamcache/logs/access.log steamcache-default;
+  #  error_log /srv/steamcache/logs/error.log;
+  proxy_temp_path /tmp/nginx/ 1 2;
+
+  resolver 8.8.8.8;
+
+#  location /uploads/games/ {
+#     try_files $uri @mirror;
+#          access_log /srv/playemulator/logs/access.log steamcache-local;
+#  }
+
+  location / {
+     proxy_next_upstream error timeout http_404;
+     proxy_pass https://$host$request_uri;
+    proxy_ssl_verify       off;
+
+     proxy_ssl_server_name on;
+
+proxy_ignore_headers "Set-Cookie";
+proxy_hide_header "Set-Cookie";
+proxy_buffering on;
+     proxy_redirect off;
+     proxy_set_header Host $host;
+     proxy_set_header X-Real-IP $remote_addr;
+     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+     add_header X-Mirror-Upstream-Status $upstream_status;
+     add_header X-Mirror-Upstream-Response-Time $upstream_response_time;
+     add_header X-Mirror-Status $upstream_cache_status;
+     add_header Host $host;
+     #     access_log /srv/steamcache/logs/access.log steamcache-other;
+  }
+
+  location @mirror {
+     proxy_store on;
+     proxy_store_access user:rw group:rw all:r;
+     proxy_next_upstream error timeout http_404;
+     proxy_pass https://$host$request_uri;
+     proxy_redirect off;
+     proxy_set_header Host $host;
+     proxy_set_header X-Real-IP $remote_addr;
+     proxy_set_header X-Forwarded-For proxy_add_x_forwarded_for;
+     add_header X-Mirror-Upstream-Status $upstream_status;
+     add_header X-Mirror-Upstream-Response-Time  $upstream_response_time;
+     add_header X-Mirror-Status $upstream_cache_status;
+     #     access_log /srv/steamcache/logs/access.log steamcache-remote;
+  }
+}

Makefile

@@ -0,0 +1,27 @@
+all:
+	echo OK
+
+install:
+	mkdir /srv/playemulator/data -p
+	chown www-data:www-data -R /srv/playemulator/data
+	cp -vf 0010-cache.conf /etc/nginx/sites-available/
+	cp -vf cache-dir.conf /etc/nginx/conf.d/
+	cd /etc/nginx/sites-enabled && ln -s ../sites-available/0010-cache.conf;true
+
+install-cert:
+	mkdir /etc/ssl/local -p
+	cat ssl/cert.pem ssl/chain.pem > /etc/ssl/local/cache.chained.crt
+	cat ssl/key.pem > /etc/ssl/local/cache.key
+
+start:
+	systemctl start nginx
+reload:
+	systemctl reload nginx
+restart: stop start
+
+stop:
+	systemctl stop nginx
+enable:
+	systemctl enable nginx
+disable:
+	systemctl disable nginx

README.md

@@ -0,0 +1,3 @@
+##
+
+* <https://arstechnica.com/gaming/2017/01/building-a-local-steam-caching-server-to-ease-the-bandwidth-blues/>

cache-dir.conf

@@ -0,0 +1,9 @@
+proxy_cache_path /srv/playemulator/cache levels=1:2 keys_zone=default_cache:10m max_size=2g
+                 inactive=120m use_temp_path=off;
+proxy_cache_key "$scheme$request_method$host$request_uri";
+proxy_cache_valid 200 302 129600m;
+
+#proxy_cache_methods GET HEAD POST;
+
+log_format steamcache-local '$remote_addr - $remote_user [$time_local] "$request" $status $body_bytes_sent "$http_referer" "$http_user_agent" LOCAL';
+

decrypt-key.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+openssl rsa -in ssl/key.pem.encrypted -out ssl/key.pem

test.sh

@@ -0,0 +1 @@
+curl 'https://static.playemulator.io/uploads/games/202011/kawasaki-superbike-challenge.smc?ver=104' -H 'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:127.0) Gecko/20100101 Firefox/127.0' -H 'Accept: */*' -H 'Accept-Language: en-US,en;q=0.5' -H 'Accept-Encoding: gzip, deflate, br, zstd' -H 'Origin: https://load.retroemulator.com' -H 'Connection: keep-alive' -H 'Referer: https://load.retroemulator.com/' -H 'Sec-Fetch-Dest: empty' -H 'Sec-Fetch-Mode: cors' -H 'Sec-Fetch-Site: cross-site' -H 'TE: trailers' --output /dev/null -k