Merge pull request #26 from mtte/master

Fix error when OAUTH_PUBKEY_PATH is not set

Author: NickMRamirez

lib/jwtverify.lua

@@ -274,13 +274,15 @@ core.register_init(function()
 
   -- when using an RS256 signature
   local publicKeyPath = os.getenv("OAUTH_PUBKEY_PATH") 
-  local pem = readAll(publicKeyPath)
-  config.publicKey = pem
+  if publicKeyPath ~= nil then
+    local pem = readAll(publicKeyPath)
+    config.publicKey = pem
+  end
 
   -- when using an HS256 or HS512 signature
   config.hmacSecret = os.getenv("OAUTH_HMAC_SECRET")
 
-  log("PublicKeyPath: " .. publicKeyPath)
+  log("PublicKeyPath: " .. (publicKeyPath or "<none>"))
   log("Issuer: " .. (config.issuer or "<none>"))
   log("Audience: " .. (config.audience or "<none>"))
 end)