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disable caching v2 skylinks (#827) 

* disable caching v2 skylinks

* amend comment

* fix boolean switch
This commit is contained in:
Karol Wypchło 2021-05-31 20:27:56 +02:00 committed by GitHub
parent 7529c2c2c2
commit 45ce3de7c2
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2 changed files with 15 additions and 5 deletions
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15
docker/nginx/conf.d/client.conf
View File

@ -422,11 +422,20 @@ server {
limit_conn downloads_by_ip 100; # ddos protection: max 100 downloads at a time
# we need to explicitly use set directive here because $1 will contain the skylink with
# we need to explicitly use set directive here because $2 and $3 will contain values with
# decoded whitespaces and set will re-encode it for us before passing it to proxy_pass
set $skylink $1;
set $skylink $2;
set $path $3;
access_by_lua_block {
-- disable cache if this is skylink v2
local isBase32v2 = string.len(ngx.var.skylink) == 55 and string.sub(ngx.var.skylink, 0, 2) == "04"
local isBase64v2 = string.len(ngx.var.skylink) == 46 and string.sub(ngx.var.skylink, 0, 2) == "AQ"
if isBase32v2 or isBase64v2 then
ngx.var.nocache = 1 # nginx expects 0/1 for boolean
end
-- this block runs only when accounts are enabled
if os.getenv("ACCOUNTS_ENABLED", "0") == "0" then return end
@ -461,7 +470,7 @@ server {
proxy_read_timeout 600;
proxy_set_header User-Agent: Sia-Agent;
# proxy this call to siad /skynet/skylink/ endpoint (make sure the ip is correct)
proxy_pass http://siad/skynet/skylink/$skylink$is_args$args;
proxy_pass http://siad/skynet/skylink/$skylink$path$is_args$args;
}
location @base32_subdomain {

5
docker/nginx/conf.d/include/proxy-cache-downloads
View File

@ -1,4 +1,5 @@
proxy_cache skynet;
set $nocache 0; # internal variable for bypassing the cache, nginx expects 0/1 for boolean
proxy_cache skynet; # cache name
slice 1m;
proxy_http_version 1.1; # upgrade if necessary because 1.0 does not support byte-range requests
proxy_set_header Range $slice_range; # pass slice range to proxy
@ -6,5 +7,5 @@ proxy_cache_key $uri$arg_format$arg_attachment$slice_range; # use just the uri p
proxy_cache_min_uses 3; # cache responses after 3 requests of the same file
proxy_cache_valid 200 206 24h; # cache 200 and 206 responses for 24 hours
proxy_cache_lock on; # queue cache requests for the same resource until it is fully cached
proxy_cache_bypass $cookie_nocache $arg_nocache; # add cache bypass option
proxy_cache_bypass $nocache $cookie_nocache $arg_nocache; # add cache bypass option
add_header X-Proxy-Cache $upstream_cache_status; # add response header to indicate cache hits and misses