56 lines
2.0 KiB
Plaintext
56 lines
2.0 KiB
Plaintext
include /etc/nginx/conf.d/include/init-optional-variables;
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location / {
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set $skylink "";
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set $path $uri;
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rewrite_by_lua_block {
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local cjson = require("cjson")
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local cache = ngx.shared.dnslink
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local cache_value = cache:get(ngx.var.host)
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if cache_value == nil then
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local httpc = require("resty.http").new()
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-- 10.10.10.55 points to dnslink-api service (alias not available when using resty-http)
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local res, err = httpc:request_uri("http://10.10.10.55:3100/dnslink/" .. ngx.var.host)
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if err or (res and res.status ~= ngx.HTTP_OK) then
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-- check whether we can fallback to regular skylink request
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local match_skylink = ngx.re.match(ngx.var.uri, "^/([a-zA-Z0-9-_]{46}|[a-z0-9]{55})(/.*)?")
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if match_skylink then
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ngx.var.skylink = match_skylink[1]
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ngx.var.path = match_skylink[2] or "/"
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else
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ngx.status = (err and ngx.HTTP_INTERNAL_SERVER_ERROR) or res.status
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ngx.header["content-type"] = "text/plain"
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ngx.say(err or res.body)
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ngx.exit(ngx.status)
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end
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else
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local resolved = cjson.decode(res.body)
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ngx.var.skylink = resolved.skylink
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if resolved.sponsor then
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ngx.req.set_header("Skynet-Api-Key", resolved.sponsor)
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end
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local cache_ttl = 300 -- 5 minutes cache expire time
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cache:set(ngx.var.host, res.body, cache_ttl)
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end
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else
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local resolved = cjson.decode(cache_value)
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ngx.var.skylink = resolved.skylink
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if resolved.sponsor then
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ngx.req.set_header("Skynet-Api-Key", resolved.sponsor)
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end
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end
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ngx.var.skylink = require("skynet.skylink").parse(ngx.var.skylink)
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}
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include /etc/nginx/conf.d/include/location-skylink;
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}
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