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also expose pem cert uid in certificate.call function

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This commit is contained in:
Elvin Efendi 2020-02-19 13:41:50 -05:00
parent 4bb9106be2
commit ad78425852
2 changed files with 23 additions and 16 deletions
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35
rootfs/etc/nginx/lua/certificate.lua
View file

@ -1,11 +1,13 @@
local ssl = require("ngx.ssl")
local configuration = require("configuration")
local re_sub = ngx.re.sub
local _M = {}
local DEFAULT_CERT_HOSTNAME = "_"
local certificate_data = ngx.shared.certificate_data
local certificate_servers = ngx.shared.certificate_servers
local function get_der_cert_and_priv_key(pem_cert_key)
local der_cert, der_cert_err = ssl.cert_pem_to_der(pem_cert_key)
if not der_cert then
@ -32,24 +34,25 @@ local function set_der_cert_and_key(der_cert, der_priv_key)
end
end
local function get_pem_cert_key(raw_hostname)
local function get_pem_cert_uid(raw_hostname)
local hostname = re_sub(raw_hostname, "\\.$", "", "jo")
local pem_cert_key = configuration.get_pem_cert_key(hostname)
if pem_cert_key then
return pem_cert_key
local uid = certificate_servers:get(hostname)
if uid then
return uid
end
local wildcard_hosatname, _, err = re_sub(hostname, "^[^\\.]+\\.", "*.", "jo")
if err then
ngx.log(ngx.ERR, "error: ", err)
return pem_cert_key
return uid
end
if wildcard_hosatname then
pem_cert_key = configuration.get_pem_cert_key(wildcard_hosatname)
uid = ngx.shared.certificate_servers:get(wildcard_hosatname)
end
return pem_cert_key
return uid
end
function _M.configured_for_current_request()
@ -57,7 +60,7 @@ function _M.configured_for_current_request()
return ngx.ctx.configured_for_current_request
end
ngx.ctx.configured_for_current_request = get_pem_cert_key(ngx.var.host) ~= nil
ngx.ctx.configured_for_current_request = get_pem_cert_uid(ngx.var.host) ~= nil
return ngx.ctx.configured_for_current_request
end
@ -73,11 +76,15 @@ function _M.call()
hostname = DEFAULT_CERT_HOSTNAME
end
local pem_cert_key = get_pem_cert_key(hostname)
if not pem_cert_key then
pem_cert_key = get_pem_cert_key(DEFAULT_CERT_HOSTNAME)
local pem_cert
local pem_cert_uid = get_pem_cert_uid(hostname)
if not pem_cert_uid then
pem_cert_uid = get_pem_cert_uid(DEFAULT_CERT_HOSTNAME)
end
if not pem_cert_key then
if pem_cert_uid then
pem_cert = certificate_data:get(pem_cert_uid)
end
if not pem_cert then
ngx.log(ngx.ERR, "certificate not found, falling back to fake certificate for hostname: " .. tostring(hostname))
return
end
@ -88,7 +95,7 @@ function _M.call()
return ngx.exit(ngx.ERROR)
end
local der_cert, der_priv_key, der_err = get_der_cert_and_priv_key(pem_cert_key)
local der_cert, der_priv_key, der_err = get_der_cert_and_priv_key(pem_cert)
if der_err then
ngx.log(ngx.ERR, der_err)
return ngx.exit(ngx.ERROR)

4
rootfs/etc/nginx/lua/configuration.lua
View file

@ -37,7 +37,7 @@ local function fetch_request_body()
return body
end
function _M.get_pem_cert_key(hostname)
local function get_pem_cert(hostname)
local uid = certificate_servers:get(hostname)
if not uid then
return nil
@ -143,7 +143,7 @@ local function handle_certs()
return
end
local key = _M.get_pem_cert_key(query["hostname"])
local key = get_pem_cert(query["hostname"])
if key then
ngx.status = ngx.HTTP_OK
ngx.print(key)