Merge with Zash

3 files changed, 158 insertions, 107 deletions

diff --git a/util/openssl.lua b/util/openssl.lua
new file mode 100644
index 00000000..8fdb9b4a
--- /dev/null
+++ b/util/openssl.lua
@@ -0,0 +1,156 @@
+local type, tostring, pairs, ipairs = type, tostring, pairs, ipairs;
+local t_insert, t_concat = table.insert, table.concat;
+local s_format = string.format;
+
+local oid_xmppaddr = "1.3.6.1.5.5.7.8.5"; -- [XMPP-CORE]
+local oid_dnssrv   = "1.3.6.1.5.5.7.8.7"; -- [SRV-ID]
+
+local idna_to_ascii = require "util.encodings".idna.to_ascii;
+
+local _M = {};
+local config = {};
+_M.config = config;
+
+local ssl_config = {};
+local ssl_config_mt = {__index=ssl_config};
+
+function config.new()
+	return setmetatable({
+		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 = {
+			DNS = {},
+			otherName = {},
+		},
+	}, ssl_config_mt);
+end
+
+function ssl_config:serialize()
+	local s = "";
+	for k, t in pairs(self) do
+		s = s .. ("[%s]\n"):format(k);
+		if k == "subject_alternative_name" then
+			for san, n in pairs(t) do
+				for i = 1,#n do
+					s = s .. s_format("%s.%d = %s\n", san, i -1, n[i]);
+				end
+			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
+
+local function utf8string(s)
+	-- This is how we tell openssl not to encode UTF-8 strings as fake Latin1
+	return s_format("FORMAT:UTF8,UTF8:%s", s);
+end
+
+local function ia5string(s)
+	return s_format("IA5STRING:%s", s);
+end
+
+local util = {};
+_M.util = {
+	utf8string = utf8string,
+	ia5string = ia5string,
+};
+
+local function xmppAddr(t, host)
+end
+
+function ssl_config:add_dNSName(host)
+	t_insert(self.subject_alternative_name.DNS, idna_to_ascii(host));
+end
+
+function ssl_config:add_sRVName(host, service)
+	t_insert(self.subject_alternative_name.otherName,
+		s_format("%s;%s", oid_dnssrv, ia5string("_" .. service .."." .. idna_to_ascii(host))));
+end
+
+function ssl_config:add_xmppAddr(host)
+	t_insert(self.subject_alternative_name.otherName,
+		s_format("%s;%s", oid_xmppaddr, utf8string(host)));
+end
+
+function ssl_config:from_prosody(hosts, config, certhosts, raw)
+	-- TODO Decide if this should go elsewhere
+	local found_matching_hosts = false;
+	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
+				found_matching_hosts = true;
+				self:add_dNSName(name);
+				--print(name .. "#component_module: " .. (config.get(name, "core", "component_module") or "nil"));
+				if config.get(name, "core", "component_module") == nil then
+					self:add_sRVName(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
+					self:add_sRVName(name, "xmpp-server");
+				end
+				self:add_xmppAddr(name);
+			end
+		end
+	end
+	if not found_matching_hosts then
+		return nil, "no-matching-hosts";
+	end
+end
+
+do -- Lua to shell calls.
+	local function shell_escape(s)
+		return s:gsub("'",[['\'']]);
+	end
+
+	local function serialize(f,o)
+		local r = {"openssl", f};
+		for k,v in pairs(o) do
+			if type(k) == "string" then
+				t_insert(r, ("-%s"):format(k));
+				if v ~= true then
+					t_insert(r, ("'%s'"):format(shell_escape(tostring(v))));
+				end
+			end
+		end
+		for k,v in ipairs(o) do
+			t_insert(r, ("'%s'"):format(shell_escape(tostring(v))));
+		end
+		return t_concat(r, " ");
+	end
+
+	local os_execute = os.execute;
+	setmetatable(_M, {
+		__index=function(self,f)
+			return function(opts)
+				return 0 == os_execute(serialize(f, type(opts) == "table" and opts or {}));
+			end;
+		end;
+	});
+end
+
+return _M;
diff --git a/util/rfc3484.lua b/util/rfc3484.lua
index dd855a84..5ee572a0 100644
--- a/util/rfc3484.lua
+++ b/util/rfc3484.lua
@@ -19,7 +19,7 @@ local function t_sort(t, comp)
 	end
 end
 
-function source(dest, candidates)
+local function source(dest, candidates)
 	local function comp(ipA, ipB)
 		-- Rule 1: Prefer same address
 		if dest == ipA then
@@ -70,7 +70,7 @@ function source(dest, candidates)
 	return candidates[1];
 end
 
-function destination(candidates, sources)
+local function destination(candidates, sources)
 	local sourceAddrs = {};
 	local function comp(ipA, ipB)
 		local ipAsource = sourceAddrs[ipA];
diff --git a/util/x509.lua b/util/x509.lua
index f106e6fa..19d4ec6d 100644
--- a/util/x509.lua
+++ b/util/x509.lua
@@ -212,109 +212,4 @@ 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;