From: Marek Vavrusa <marek@vavrusa.com>
Date: Wed, 1 Jun 2016 07:08:20 +0000 (-0700)
Subject: modules/daf: initial commit
X-Git-Tag: v1.1.0~61
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7ed94014adef94cbaa99372dce3470dd02b3da46;p=thirdparty%2Fknot-resolver.git

modules/daf: initial commit
---

diff --git a/doc/modules.rst b/doc/modules.rst
index b40c802eb..83b169b3c 100644
--- a/doc/modules.rst
+++ b/doc/modules.rst
@@ -14,6 +14,7 @@ Knot DNS Resolver modules
 .. include:: ../modules/view/README.rst
 .. include:: ../modules/predict/README.rst
 .. include:: ../modules/http/README.rst
+.. include:: ../modules/daf/README.rst
 .. include:: ../modules/graphite/README.rst
 .. include:: ../modules/kmemcached/README.rst
 .. include:: ../modules/redis/README.rst
diff --git a/modules/daf/README.md b/modules/daf/README.md
new file mode 100644
index 000000000..a267aaa7a
--- /dev/null
+++ b/modules/daf/README.md
@@ -0,0 +1,13 @@
+.. _mod-daf:
+
+DNS Application Firewall
+------------------------
+
+This module is a high-level interface for other powerful filtering modules and DNS views. It provides an easy interface to apply and monitor DNS filtering rules and a persistent memory for them. It also provides a restful service interface and an HTTP interface.
+
+Example configuration
+^^^^^^^^^^^^^^^^^^^^^
+
+.. code-block:: lua
+
+	modules = { 'http', 'daf' }
diff --git a/modules/daf/daf.lua b/modules/daf/daf.lua
new file mode 100644
index 000000000..1c8a7d140
--- /dev/null
+++ b/modules/daf/daf.lua
@@ -0,0 +1,44 @@
+local cqueues = require('cqueues')
+
+-- Module declaration
+local M = {
+}
+
+-- @function Public-facing API
+local function api(h, stream)
+	print('DAF: ')
+	for k,v in h:each() do print(k,v) end
+end
+
+-- @function Publish DAF statistics
+local function publish(h, ws)
+	local ok = true
+	while ok do
+		-- Publish stats updates periodically
+		local push = tojson({})
+		ok = ws:send(push)
+		cqueues.sleep(0.5)
+	end
+	ws:close()
+end
+
+-- @function Cleanup module
+function M.deinit()
+	if http then
+		http.endpoints['/daf'] = nil
+		http.snippets['/daf'] = nil
+	end
+end
+
+-- @function Configure module
+function M.config(conf)
+	if not http then error('"http" module is not loaded, cannot load DAF') end
+	-- Export API and data publisher
+	http.endpoints['/daf'] = {'application/json', api, publish}
+	-- Export snippet
+	http.snippets['/daf'] = {'Application Firewall', [[
+		<p>Hello world!</p>
+	]]}
+end
+
+return M
\ No newline at end of file
diff --git a/modules/daf/daf.mk b/modules/daf/daf.mk
new file mode 100644
index 000000000..bd66866ae
--- /dev/null
+++ b/modules/daf/daf.mk
@@ -0,0 +1,2 @@
+daf_SOURCES := daf.lua
+$(call make_lua_module,daf)
diff --git a/modules/modules.mk b/modules/modules.mk
index 5924c3928..a3647382c 100644
--- a/modules/modules.mk
+++ b/modules/modules.mk
@@ -20,7 +20,8 @@ modules_TARGETS += ketcd \
                    predict \
                    dns64 \
                    renumber \
-                   http
+                   http \
+                   daf
 endif
 
 # List of Golang modules