add module for create certificate to SSL

Author: pessoa736

PS/Cert/init.lua

@@ -0,0 +1,59 @@
+local scriptDir = debug.getinfo(1, "S").source:match("@(.*/)") or "./"
+
+if not _G.log then _G.log = require("loglua") end
+local openssl = require("openssl")
+
+local Cert = {}
+
+function Cert:CreateKey(keyCfg)
+    keyCfg = keyCfg or { type="rsa", bits=4096 }
+    
+    local CK = log.inSection("Create Key Certificate")
+
+    local pkey = openssl.pkey.new(keyCfg)
+
+    CK.debug("create pkey", pkey)
+
+    -- exporta para PEM
+    local key_pem = pkey:export("pem")
+    CK.debug("pkey exported to PEM", key_pem)
+
+    local f = assert(io.open(scriptDir.."server.key","w"))
+    CK.debug("saving Server.key")
+    f:write(key_pem)
+    f:close()
+
+    return pkey
+end
+
+function Cert:CreateCertificate(subjectCfg, keyCfg)
+    local subjectCfg = subjectCfg or {
+        CN = "pudim.local",
+        C  = "BR",
+        ST = "RN",
+    }
+
+    local pkey = self:CreateKey(keyCfg)
+    local x509 = openssl.x509.new()
+
+    x509:set_version(2)                 
+    x509:set_serial(os.time())          
+
+    x509:set_subject_name(subjectCfg)
+    x509:set_issuer_name(subjectCfg)
+    x509:set_pubkey(pkey)
+
+    x509:set_not_before(os.time())
+    x509:set_not_after(os.time() + 365*24*60*60)
+
+    x509:sign(pkey, "sha256")
+
+    local cert_pem = x509:export("pem")
+    local f = assert(io.open(scriptDir.."server.crt","w"))
+    f:write(cert_pem)
+    f:close()
+end
+
+
+
+return Cert