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Fix skylink v2 redirect (#946) 

* replace skylink in location header

* missing ;

* add comments for skylink v2 resolver
This commit is contained in:
Karol Wypchło 2021-07-08 14:44:13 +02:00 committed by GitHub
parent 3f040c7c0f
commit 6b5e09620d
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1 changed files with 11 additions and 3 deletions
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14
docker/nginx/conf.d/client.conf
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@ -409,12 +409,16 @@ server {
set $skylink $2;
set $path $3;
# v2 support
# $skylink_v1 and $skylink_v2 variables default to the same value but in case the requested skylink was:
# a) skylink v1 - it wouldn't matter, no additional logic is executed
# b) skylink v2 - in a lua block below we will resolve the skylink v2 into skylink v1 and update
# $skylink_v1 variable so then the proxy request to skyd can be cached in nginx (proxy_cache_key
# in proxy-cache-downloads includes $skylink_v1 as a part of the cache key)
set $skylink_v1 $skylink;
set $skylink_v2 $skylink;
access_by_lua_block {
-- disable cache if this is skylink v2
-- detect whether requested skylink is 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"
@ -440,7 +444,11 @@ 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)
# in case the requested skylink was v2 and we already resolved it to skylink v1, we're going to pass resolved
# skylink v1 to skyd to save that extra skylink v2 lookup in skyd but in turn, in case skyd returns a redirect
# we need to rewrite the skylink v1 to skylink v2 in the location header with proxy_redirect
proxy_redirect $skylink_v1 $skylink_v2;
proxy_pass http://siad/skynet/skylink/$skylink_v1$path$is_args$args;
}