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-rw-r--r--util/x509.lua109
1 files changed, 109 insertions, 0 deletions
diff --git a/util/x509.lua b/util/x509.lua
index d3c55bb4..f106e6fa 100644
--- a/util/x509.lua
+++ b/util/x509.lua
@@ -21,6 +21,10 @@
local nameprep = require "util.encodings".stringprep.nameprep;
local idna_to_ascii = require "util.encodings".idna.to_ascii;
local log = require "util.logger".init("x509");
+local pairs, ipairs = pairs, ipairs;
+local s_format = string.format;
+local t_insert = table.insert;
+local t_concat = table.concat;
module "x509"
@@ -208,4 +212,109 @@ function verify_identity(host, service, cert)
return false
end
+-- TODO Rename? Split out subroutines?
+-- Also, this is probably openssl specific, what TODO about that?
+function genx509san(hosts, config, certhosts, raw) -- recive config through that or some better way?
+ local function utf8string(s)
+ -- This is how we tell openssl not to encode UTF-8 strings as Latin1
+ return s_format("FORMAT:UTF8,UTF8:%s", s);
+ end
+
+ local function ia5string(s)
+ return s_format("IA5STRING:%s", s);
+ end
+
+ local function dnsname(t, host)
+ t_insert(t.DNS, idna_to_ascii(host));
+ end
+
+ local function srvname(t, host, service)
+ t_insert(t.otherName, s_format("%s;%s", oid_dnssrv, ia5string("_" .. service .."." .. idna_to_ascii(host))));
+ end
+
+ local function xmppAddr(t, host)
+ t_insert(t.otherName, s_format("%s;%s", oid_xmppaddr, utf8string(host)));
+ end
+
+ -----------------------------
+
+ local san = {
+ DNS = {};
+ otherName = {};
+ };
+
+ local sslsanconf = { };
+
+ for i = 1,#certhosts do
+ local certhost = certhosts[i];
+ for name, host in pairs(hosts) do
+ if name == certhost or name:sub(-1-#certhost) == "."..certhost then
+ dnsname(san, name);
+ --print(name .. "#component_module: " .. (config.get(name, "core", "component_module") or "nil"));
+ if config.get(name, "core", "component_module") == nil then
+ srvname(san, name, "xmpp-client");
+ end
+ --print(name .. "#anonymous_login: " .. tostring(config.get(name, "core", "anonymous_login")));
+ if not (config.get(name, "core", "anonymous_login") or
+ config.get(name, "core", "authentication") == "anonymous") then
+ srvname(san, name, "xmpp-server");
+ end
+ xmppAddr(san, name);
+ end
+ end
+ end
+
+ for t, n in pairs(san) do
+ for i = 1,#n do
+ t_insert(sslsanconf, s_format("%s.%d = %s", t, i -1, n[i]));
+ end
+ end
+
+ return raw and sslsanconf or t_concat(sslsanconf, "\n");
+end
+
+function baseconf()
+ return {
+ req = {
+ distinguished_name = "distinguished_name",
+ req_extensions = "v3_extensions",
+ x509_extensions = "v3_extensions",
+ prompt = "no",
+ },
+ distinguished_name = {
+ commonName = "example.com",
+ countryName = "GB",
+ localityName = "The Internet",
+ organizationName = "Your Organisation",
+ organizationalUnitName = "XMPP Department",
+ emailAddress = "xmpp@example.com",
+ },
+ v3_extensions = {
+ basicConstraints = "CA:FALSE",
+ keyUsage = "digitalSignature,keyEncipherment",
+ extendedKeyUsage = "serverAuth,clientAuth",
+ subjectAltName = "@subject_alternative_name",
+ },
+ subject_alternative_name = { },
+ }
+end
+
+function serialize_conf(conf)
+ local s = "";
+ for k, t in pairs(conf) do
+ s = s .. ("[%s]\n"):format(k);
+ if t[1] then
+ for i, v in ipairs(t) do
+ s = s .. ("%s\n"):format(v);
+ end
+ else
+ for k, v in pairs(t) do
+ s = s .. ("%s = %s\n"):format(k, v);
+ end
+ end
+ s = s .. "\n";
+ end
+ return s;
+end
+
return _M;