1 files changed, 132 insertions, 0 deletions
diff --git a/python/gui/api/__init__.py b/python/gui/api/__init__.py
new file mode 100755
index 0000000..77faa10
--- /dev/null
+++ b/python/gui/api/__init__.py
@@ -0,0 +1,132 @@
+# -*- coding: utf-8 -*-
+#
+#   Copyright (C) 2018
+#   Matthias P. Braendli, matthias.braendli@mpb.li
+#
+#    http://www.opendigitalradio.org
+#
+#   This file is part of ODR-DabMod.
+#
+#   ODR-DabMod is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as
+#   published by the Free Software Foundation, either version 3 of the
+#   License, or (at your option) any later version.
+#
+#   ODR-DabMod is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with ODR-DabMod.  If not, see <http://www.gnu.org/licenses/>.
+
+import cherrypy
+from cherrypy.lib.httputil import parse_query_string
+
+import json
+import urllib
+import os
+
+import io
+import datetime
+import threading
+
+def send_ok(data=None):
+    if data is not None:
+        return {'status' : 'ok', 'data': data}
+    else:
+        return {'status': 'ok'}
+
+def send_error(reason=""):
+    if reason:
+        return {'status' : 'error', 'reason': reason}
+    else:
+        return {'status' : 'error'}
+
+class RXThread(threading.Thread):
+    def __init__(self, api):
+        super(RXThread, self).__init__()
+        self.api = api
+        self.running = False
+        self.daemon = True
+
+    def cancel(self):
+        self.running = False
+
+    def run(self):
+        self.running = True
+        while self.running:
+            if self.api.dpd_pipe.poll(1):
+                rx = self.api.dpd_pipe.recv()
+                if rx['cmd'] == "quit":
+                    break
+                elif rx['cmd'] == "dpd-state":
+                    self.api.dpd_state = rx['data']
+                elif rx['cmd'] == "dpd-calibration-result":
+                    self.api.calibration_result = rx['data']
+
+class API:
+    def __init__(self, mod_rc, dpd_pipe):
+        self.mod_rc = mod_rc
+        self.dpd_pipe = dpd_pipe
+        self.dpd_state = None
+        self.calibration_result = None
+        self.receive_thread = RXThread(self)
+        self.receive_thread.start()
+
+    @cherrypy.expose
+    def index(self):
+        return """This is the api area."""
+
+    @cherrypy.expose
+    @cherrypy.tools.json_out()
+    def rc_parameters(self):
+        return send_ok(self.mod_rc.get_modules())
+
+    @cherrypy.expose
+    @cherrypy.tools.json_out()
+    def parameter(self, **kwargs):
+        if cherrypy.request.method == 'POST':
+            cl = cherrypy.request.headers['Content-Length']
+            rawbody = cherrypy.request.body.read(int(cl))
+            params = json.loads(rawbody.decode())
+            try:
+                self.mod_rc.set_param_value(params['controllable'], params['param'], params['value'])
+            except ValueError as e:
+                cherrypy.response.status = 400
+                return send_error(str(e))
+            return send_ok()
+        else:
+            cherrypy.response.status = 400
+            return send_error("POST only")
+
+    @cherrypy.expose
+    @cherrypy.tools.json_out()
+    def trigger_capture(self, **kwargs):
+        if cherrypy.request.method == 'POST':
+            self.dpd_pipe.send({'cmd': "dpd-capture"})
+            return send_ok()
+        else:
+            cherrypy.response.status = 400
+            return send_error("POST only")
+
+    @cherrypy.expose
+    @cherrypy.tools.json_out()
+    def dpd_status(self, **kwargs):
+        if self.dpd_state is not None:
+            return send_ok(self.dpd_state)
+        else:
+            return send_error("DPD state unknown")
+
+    @cherrypy.expose
+    @cherrypy.tools.json_out()
+    def calibrate(self, **kwargs):
+        if cherrypy.request.method == 'POST':
+            self.dpd_pipe.send({'cmd': "dpd-calibrate"})
+            return send_ok()
+        else:
+            if self.calibration_result is not None:
+                return send_ok(self.calibration_result)
+            else:
+                return send_error("DPD calibration result unknown")
+