利用Varnish做Discuz论坛的缓存服务器(2)

日期：2020-06-21 栏目：程序人生浏览：次

sub vcl_recv {
if (req.restarts == 0) {
if (req.http.x-forwarded-for) {
set req.http.X-Forwarded-For =
req.http.X-Forwarded-For + ", " + client.ip;
} else {
set req.http.X-Forwarded-For = client.ip;
}
}

if(req.request == "PURGE") {
if (!client.ip ~ local) {
error 405 "Not Allowed.";
}
return (lookup);
}

if (req.request == "GET" && req.url ~ "\.(jpg|png|gif|swf|jpeg|flv|bmp|gz|tgz|bz2|tbz|js|css|ico)$") {
unset req.http.cookie;
}

if (req.request == "GET" && req.url ~ "\.(js|css).*$") {
unset req.http.cookie;
}

if (req.url ~ "^/images") {
unset req.http.cookie;
}

if (req.request != "GET" &&
req.request != "HEAD" &&
req.request != "PUT" &&
req.request != "POST" &&
req.request != "TRACE" &&
req.request != "OPTIONS" &&
req.request != "DELETE") {
return (pipe);
}

if (req.request != "GET" && req.request != "HEAD") {
return (pass);
}

if (req.http.Authorization || req.http.Cookie) {
return (pass);
}

if (req.request == "GET" && req.url ~ "\.(php)($|\?)") {
return (pass);
}

return (lookup);
}

sub vcl_pipe {
return (pipe);
}

sub vcl_pass {
if (req.request == "PURGE") {
error 502 "PURGE on a passed object";
}
return (pass);
}

sub vcl_hash {
hash_data(req.url);
if (req.http.host) {
hash_data(req.http.host);
} else {
hash_data(server.ip);
}
return (hash);
}

sub vcl_hit {
if (!obj.ttl > 0s) {
return (pass);
}
if (req.request == "PURGE") {
purge;
error 200 "Purged.";
}
return (deliver);
}

sub vcl_miss {
if (req.request == "PURGE") {
purge;
error 404 "Not in cache";
}
return (fetch);
}

sub vcl_fetch {
if (beresp.ttl <= 0s ||
beresp.http.Set-Cookie ||
beresp.http.Vary == "*") {
set beresp.ttl = 120 s;
return (hit_for_pass);
}

if (beresp.http.Pragma ~ "no-cache" ||
beresp.http.Cache-Control ~ "no-cache" ||
beresp.http.Cache-Control ~ "private") {
return (hit_for_pass);
}

if (req.request == "GET" && req.url ~ "\.(bmp|jpeg|jpg|png|gif|svg|png|ico|txt|css|js|html|htm)$") {
unset beresp.http.set-cookie;
set beresp.ttl = 1h;
} else {
set beresp.ttl = 1800s;
}

return (deliver);
}

sub vcl_deliver {
if (obj.hits > 0) {
set resp.http.X-Cache = "Hit Via" + " " + server.hostname;
} else {
set resp.http.X-Cache = "Miss Via" + " " + server.hostname;
}
return (deliver);
}

sub vcl_init {
return (ok);
}

sub vcl_fini {
return (ok);
}

4.启动varnish，查看端口，并打开浏览器测试：

service varnish start
ss -tnl

利用Varnish做Discuz论坛的缓存服务器