akkoma/installation/pleroma.vcl
Mark Felder fcb32345d7 Remove attempted caching of toots
This does not work as expected. We should not attempt to be clever here.
Varnish will do the right thing if we just teach Pleroma to set headers
properly for content we know can be cached.
2018-04-10 14:17:23 +00:00

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vcl 4.0;
import std;
backend default {
.host = "127.0.0.1";
.port = "4000";
}
# ACL for IPs that are allowed to PURGE data from the cache
acl purge {
"127.0.0.1";
}
sub vcl_recv {
# Redirect HTTP to HTTPS
if (std.port(server.ip) != 443) {
set req.http.x-redir = "https://" + req.http.host + req.url;
return (synth(750, ""));
}
# Pipe if WebSockets request is coming through
if (req.http.upgrade ~ "(?i)websocket") {
return (pipe);
}
# Allow purging of the cache
if (req.method == "PURGE") {
if (!client.ip ~ purge) {
return(synth(405,"Not allowed."));
}
return(purge);
}
# Pleroma MediaProxy - strip headers that will affect caching
if (req.url ~ "^/proxy/") {
unset req.http.Cookie;
unset req.http.Authorization;
unset req.http.Accept;
return (hash);
}
# Hack to enable a Terms of Service page missing from Pleroma
if (req.url ~ "^/about/more$") {
set req.http.x-redir = "https://" + req.http.host + "/static/terms-of-service.html";
return (synth(750, ""));
}
# Strip headers that will affect caching from all other static content
# This also permits caching of individual toots and AP Activities
if ((req.url ~ "^/(media|notice|objects|static)/") ||
(req.url ~ "(?i)\.(html|js|css|jpg|jpeg|png|gif|gz|tgz|bz2|tbz|mp3|ogg|svg|swf|ttf|pdf|woff|woff2)$"))
{
unset req.http.Cookie;
unset req.http.Authorization;
return (hash);
}
# Everything else should just be piped to Pleroma
return (pipe);
}
sub vcl_backend_response {
# gzip text content
if (beresp.http.content-type ~ "(text|text/css|application/x-javascript|application/javascript)") {
set beresp.do_gzip = true;
}
# etags are bad
unset beresp.http.etag;
# Don't cache objects that require authentication
if (beresp.http.Authorization && !beresp.http.Cache-Control ~ "public") {
set beresp.uncacheable = true;
return (deliver);
}
# Default object caching of 86400s;
set beresp.ttl = 86400s;
# Allow serving cached content for 6h in case backend goes down
set beresp.grace = 6h;
# Do not cache 5xx responses
if (beresp.status == 500 || beresp.status == 502 || beresp.status == 503 || beresp.status == 504) {
set beresp.uncacheable = true;
return (abandon);
}
# Do not cache redirects and errors
if ((beresp.status >= 300) && (beresp.status < 500)) {
set beresp.uncacheable = true;
set beresp.ttl = 30s;
return (deliver);
}
# Pleroma MediaProxy internally sets headers properly
if (bereq.url ~ "^/proxy/") {
return (deliver);
}
# Strip cache-restricting headers from Pleroma on static content that we want to cache
# Also enable streaming of cached content to clients (no waiting for Varnish to complete backend fetch)
if ((bereq.url ~ "^/(notice|objects)/") ||
(bereq.url ~ "(?i)\.(js|css|jpg|jpeg|png|gif|gz|tgz|bz2|tbz|mp3|ogg|svg|swf|ttf|pdf|woff|woff2)$"))
{
unset beresp.http.set-cookie;
unset beresp.http.Cache-Control;
unset beresp.http.x-request-id;
set beresp.http.Cache-Control = "public, max-age=86400";
set beresp.do_stream = true;
}
}
# The synthetic response for 301 redirects
sub vcl_synth {
if (resp.status == 750) {
set resp.status = 301;
set resp.http.Location = req.http.x-redir;
return(deliver);
}
}
# Ensure WebSockets through the pipe do not close prematurely
sub vcl_pipe {
if (req.http.upgrade) {
set bereq.http.upgrade = req.http.upgrade;
set bereq.http.connection = req.http.connection;
}
}