proxy_cache_path /data/nginx/cache levels=1:2 keys_zone=skynet:10m max_size=10g use_temp_path=off; limit_req_zone $binary_remote_addr zone=stats_by_ip:10m rate=10r/m; limit_conn_zone $binary_remote_addr zone=uploads_by_ip:10m; limit_conn_zone $binary_remote_addr zone=downloads_by_ip:10m; limit_req_status 429; limit_conn_status 429; # since we are proxying request to nginx from caddy, access logs will contain caddy's ip address # as the request address so we need to use real_ip_header module to use ip address from # X-Forwarded-For header as a real ip address of the request set_real_ip_from 10.0.0.0/8; set_real_ip_from 127.0.0.1/32; set_real_ip_from 172.16.0.0/12; set_real_ip_from 192.168.0.0/16; real_ip_header X-Forwarded-For; upstream siad { server sia:9980; } server { listen 80 default_server; listen [::]:80 default_server; # parse subdomain (a base32 encoded Skylink) into custom variable server_name "~^([a-z0-9]{55})\..*$"; set $subdomain $1; # ddos protection: closing slow connections client_body_timeout 5s; client_header_timeout 5s; # Increase the body buffer size, to ensure the internal POSTs can always # parse the full POST contents into memory. client_body_buffer_size 128k; client_max_body_size 128k; location / { # The only safe thing to do inside an if in a location block is return # or rewrite, since we need to proxy_pass we have to work our way around # using a custom error code. # # See https://www.nginx.com/resources/wiki/start/topics/depth/ifisevil/ error_page 418 = @subdomain; recursive_error_pages on; if ($subdomain != "") { return 418; } include /etc/nginx/conf.d/include/cors; root /var/www/webportal; } location /blacklist { include /etc/nginx/conf.d/include/cors; proxy_cache skynet; proxy_cache_valid any 1m; # cache blacklist for 1 minute proxy_set_header User-Agent: Sia-Agent; proxy_pass http://siad/skynet/blacklist; } location /skynet/blacklist { include /etc/nginx/conf.d/include/cors; proxy_cache skynet; proxy_cache_valid any 1m; # cache blacklist for 1 minute proxy_set_header User-Agent: Sia-Agent; proxy_pass http://siad/skynet/blacklist; } location /portals { include /etc/nginx/conf.d/include/cors; proxy_cache skynet; proxy_cache_valid any 1m; # cache portals for 1 minute proxy_set_header User-Agent: Sia-Agent; proxy_pass http://siad/skynet/portals; } location /skynet/portals { include /etc/nginx/conf.d/include/cors; proxy_cache skynet; proxy_cache_valid any 1m; # cache portals for 1 minute proxy_set_header User-Agent: Sia-Agent; proxy_pass http://siad/skynet/portals; } location /stats { include /etc/nginx/conf.d/include/cors; proxy_cache skynet; proxy_cache_valid any 10m; # cache stats for 10 minutes proxy_set_header User-Agent: Sia-Agent; proxy_read_timeout 5m; # extend the read timeout proxy_pass http://siad/skynet/stats; } location /skynet/stats { include /etc/nginx/conf.d/include/cors; proxy_cache skynet; proxy_cache_valid any 10m; # cache stats for 10 minutes proxy_set_header User-Agent: Sia-Agent; proxy_read_timeout 5m; # extend the read timeout proxy_pass http://siad/skynet/stats; } # This endpoint is a backward compatilibilty workaround for reporting stats from legacy # upload siad node for portals that used double-siad setup. If your portal does not need # to support additional siad node, you can remove it from this config. location /statsdown { include /etc/nginx/conf.d/include/cors; proxy_cache skynet; proxy_cache_valid any 10m; # cache stats for 10 minutes proxy_set_header User-Agent: Sia-Agent; proxy_read_timeout 5m; # extend the read timeout proxy_pass http://sia-upload:9980/skynet/stats; # serve upload node stats temporarily } location /health-check { include /etc/nginx/conf.d/include/cors; proxy_pass http://health-check:3100; } location /hns { include /etc/nginx/conf.d/include/proxy-buffer; set $skylink ''; # placeholder for the raw 46 bit skylink set $rest ''; # placeholder for the rest of the url that gets appended to skylink (path and args) # resolve handshake domain by requesting to /hnsres endpoint and assign correct values to $skylink and $rest access_by_lua_block { local json = require('cjson') local hns_domain_name, request_uri_rest = string.match(ngx.var.request_uri, "/hns/([^/?]+)(.*)") local hnsres_res = ngx.location.capture("/hnsres/" .. hns_domain_name) if hnsres_res.status ~= ngx.HTTP_OK then ngx.exit(ngx.HTTP_NOT_FOUND) end local hnsres_json = json.decode(hnsres_res.body) local skylink_prefix, skylink, skylink_rest = string.match(hnsres_json.skylink, "(sia://)([^/?]+)(.*)") ngx.var.skylink = skylink if request_uri_rest == "" or (request_uri_rest == "/" and skylink_rest ~= "") then ngx.var.rest = skylink_rest else ngx.var.rest = request_uri_rest end } # overwrite the Cache-Control header to only cache for 60s in case the domain gets updated more_set_headers 'Cache-Control: public, max-age=60'; # we proxy to another nginx location rather than directly to siad because we don't want to deal with caching here proxy_pass http://127.0.0.1/$skylink$rest; # in case siad returns location header, we need to replace the skylink with the domain name header_filter_by_lua_block { if ngx.header.location then local hns_domain_name = string.match(ngx.var.request_uri, "/hns/([^/?]+)") local location = string.gsub(ngx.header.location, ngx.var.skylink, hns_domain_name) ngx.header.location = location end } } location /hnsres { include /etc/nginx/conf.d/include/cors; proxy_pass http://handshake-api:3100; } location /skynet/skyfile { include /etc/nginx/conf.d/include/cors; include /etc/nginx/conf.d/include/sia-auth; limit_conn uploads_by_ip 10; # ddos protection: max 10 uploads at a time client_max_body_size 1000M; # make sure to limit the size of upload to a sane value proxy_read_timeout 600; proxy_request_buffering off; # stream uploaded files through the proxy as it comes in proxy_set_header Expect $http_expect; proxy_set_header User-Agent: Sia-Agent; # Extract 3 sets of 2 characters from $request_id and assign to $dir1, $dir2, $dir3 # respectfully. The rest of the $request_id is going to be assigned to $dir4. # We use those variables to automatically generate a unique path for the uploaded file. # This ensures that not all uploaded files end up in the same directory, which is something # that causes performance issues in the renter. # Example path result: /af/24/9b/c5ec894920ccc45634dc9a8065 if ($request_id ~* "(\w{2})(\w{2})(\w{2})(\w+)") { set $dir1 $1; set $dir2 $2; set $dir3 $3; set $dir4 $4; } # proxy this call to siad endpoint (make sure the ip is correct) proxy_pass http://siad/skynet/skyfile/$dir1/$dir2/$dir3/$dir4$is_args$args; } location ~ "^/([a-zA-Z0-9-_]{46}(/.*)?)$" { include /etc/nginx/conf.d/include/cors; include /etc/nginx/conf.d/include/proxy-buffer; include /etc/nginx/conf.d/include/proxy-cache-downloads; limit_conn downloads_by_ip 100; # ddos protection: max 100 downloads at a time add_header Cache-Control "public, max-age=86400"; # allow consumer to cache response # we need to explicitly use set directive here because $1 will contain the skylink with # decoded whitespaces and set will re-encode it for us before passing it to proxy_pass set $skylink $1; proxy_read_timeout 600; proxy_set_header User-Agent: Sia-Agent; # proxy this call to siad /skynet/skylink/ endpoint (make sure the ip is correct) proxy_pass http://siad/skynet/skylink/$skylink$is_args$args; } location @subdomain { include /etc/nginx/conf.d/include/cors; include /etc/nginx/conf.d/include/proxy-buffer; include /etc/nginx/conf.d/include/proxy-cache-downloads; limit_conn downloads_by_ip 100; # ddos protection: max 100 downloads at a time add_header Cache-Control "public, max-age=86400"; # allow consumer to cache response proxy_read_timeout 600; proxy_set_header User-Agent: Sia-Agent; # proxy this call to siad /skynet/skylink/ endpoint (make sure the ip is correct) proxy_pass http://siad/skynet/skylink/$subdomain/$request_uri; } location ~ "^/file/([a-zA-Z0-9-_]{46}(/.*)?)$" { include /etc/nginx/conf.d/include/cors; include /etc/nginx/conf.d/include/proxy-buffer; include /etc/nginx/conf.d/include/proxy-cache-downloads; limit_conn downloads_by_ip 100; # ddos protection: max 100 downloads at a time add_header Cache-Control "public, max-age=86400"; # allow consumer to cache response # we need to explicitly use set directive here because $1 will contain the skylink with # decoded whitespaces and set will re-encode it for us before passing it to proxy_pass set $skylink $1; proxy_read_timeout 600; proxy_set_header User-Agent: Sia-Agent; # proxy this call to siad /skynet/skylink/ endpoint (make sure the ip is correct) # this alias also adds attachment=true url param to force download the file proxy_pass http://siad/skynet/skylink/$skylink?attachment=true&$args; } }