340 lines
10 KiB
Python
340 lines
10 KiB
Python
# LEDD Project
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# Copyright (C) 2015 LEDD Team
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import logging
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import configparser
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import os
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import sys
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import asyncio
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import signal
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from sqlalchemy import create_engine
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from jsonrpc import JSONRPCResponseManager, dispatcher
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from jsonrpc.exceptions import JSONRPCError, JSONRPCInvalidParams
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import spectra
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from sqlalchemy.exc import OperationalError
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from sqlalchemy.orm.exc import NoResultFound
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from ledd import VERSION
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from ledd.effectstack import EffectStack
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from ledd.models import Meta
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from ledd.stripe import Stripe
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from ledd.controller import Controller
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from . import Base, session
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log = logging.getLogger(__name__)
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daemonSection = 'daemon'
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databaseSection = 'db'
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""" :type : asyncio.BaseEventLoop """
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effects = []
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def run():
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try:
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# read config
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config = configparser.ConfigParser()
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try:
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with open('ledd.config', 'w+') as f:
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config.read_file(f)
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except FileNotFoundError:
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log.info("No config file found!")
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# SQL init
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global engine
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engine = create_engine("sqlite:///" + config.get(databaseSection, 'name', fallback='ledd.sqlite'),
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echo=log.getEffectiveLevel() == logging.DEBUG)
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session.configure(bind=engine)
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Base.metadata.bind = engine
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if not check_db():
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init_db()
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log.debug(Controller.query.all())
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logging.getLogger("asyncio").setLevel(log.getEffectiveLevel())
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# sigterm handler
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def sigterm_handler():
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raise SystemExit
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signal.signal(signal.SIGTERM, sigterm_handler)
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# init plugins
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# TODO: check all plugins for existing hooks
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# main loop
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global loop
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loop = asyncio.get_event_loop()
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coro = loop.create_server(LedDProtocol,
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config.get(daemonSection, 'host', fallback='0.0.0.0'),
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config.get(daemonSection, 'port', fallback=1425))
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global server
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server = loop.run_until_complete(coro)
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loop.run_forever()
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except (KeyboardInterrupt, SystemExit):
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log.info("Exiting")
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try:
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os.remove("ledd.pid")
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except FileNotFoundError:
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pass
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# TODO: close engine?
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if server is not None:
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server.close()
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if loop is not None:
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loop.run_until_complete(server.wait_closed())
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loop.close()
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sys.exit(0)
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def check_db():
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"""
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Checks database version
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:return: database validity
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:rtype: bool
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"""
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try:
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db_version = Meta.get_version()
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if db_version is not None:
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log.info("DB connection established; db-version=%s", db_version)
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return True
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except OperationalError:
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return False
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return False
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def init_db():
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Base.metadata.drop_all()
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Base.metadata.create_all()
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session.add(Meta(option="db_version", value="2"))
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session.commit()
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check_db()
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@dispatcher.add_method
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def start_effect(**kwargs):
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"""
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Part of the Color API. Used to start a specific effect.
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Required parameters: stripe IDs: sids; effect id: eid, effect options: eopt
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"""
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if "sids" not in kwargs or "eid" not in kwargs or "eopt" not in kwargs:
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return JSONRPCInvalidParams()
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for stripe in Stripe.query.filter(Stripe.id.in_(kwargs['sids'])):
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# TODO: add anything required to start effect with req_json['eid']
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# on stripes[] with options in req_json['eopt']
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effect = EffectStack()
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effects.append(effect)
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effect.stripes.append(stripe)
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effect.start()
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# asyncio.ensure_future(asyncio.get_event_loop().run_in_executor(executor, effect.execute))
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rjson = {
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'eident': None, # unique effect identifier that identifies excatly this effect started on this set of
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# stripes, used to stop them later and to give informations about running effects
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}
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return rjson
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return JSONRPCError(-1003, "Stripeid not found")
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@dispatcher.add_method
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def stop_effect(**kwargs):
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"""
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Part of the Color API. Used to stop a specific effect.
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Required parameters: effect identifier: eident
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"""
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# TODO: add stop effect by eident logic
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@dispatcher.add_method
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def get_effects(**kwargs):
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"""
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Part of the Color API. Used to show all available and running effects.
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Required parameters: -
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"""
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# TODO: list all effects here and on which stripes they run atm
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# TODO: all effects get runtime only ids, "eid"'s. They are shown here for the client to start effects.
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# TODO: All options that an effect may have need to be transmitted here too with "eopt".
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@dispatcher.add_method
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def set_color(**kwargs):
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"""
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Part of the Color API. Used to set color of a stripe.
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Required parameters: stripe ID: sid; HSV values hsv: h,s,v, controller id: cid
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"""
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if "sid" not in kwargs or "hsv" not in kwargs:
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return JSONRPCInvalidParams()
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try:
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stripe = Stripe.query.filter(Stripe.id == kwargs['sid']).one()
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stripe.set_color(spectra.hsv(kwargs['hsv']['h'], kwargs['hsv']['s'], kwargs['hsv']['v']))
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except NoResultFound:
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log.warning("Stripe not found: id=%s", kwargs['sid'])
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return JSONRPCError(-1003, "Stripeid not found")
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return ""
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@dispatcher.add_method
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def add_controller(**kwargs):
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"""
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Part of the Color API. Used to add a controller.
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Required parameters: channels; i2c_dev: number of i2c device (e.g. /dev/i2c-1 would be i2c_dev = 1);
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address: hexdecimal address of controller on i2c bus, e.g. 0x40
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"""
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if "i2c_dev" not in kwargs or "channels" not in kwargs or "address" not in kwargs:
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return JSONRPCInvalidParams()
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try:
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ncontroller = Controller(channels=int(kwargs['channels']), i2c_device=int(kwargs['i2c_dev']),
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address=kwargs['address'])
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except OSError as e:
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log.error("Error opening i2c device: %s (%s)", kwargs['i2c_dev'], e)
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return JSONRPCError(-1004, "Error while opening i2c device", e)
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session.add(ncontroller)
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session.commit()
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return {'cid': ncontroller.id}
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@dispatcher.add_method
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def get_color(**kwargs):
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"""
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Part of the Color API. Used to get the current color of an stripe.
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Required parameters: sid
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"""
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if "sid" not in kwargs:
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return JSONRPCInvalidParams()
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try:
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stripe = Stripe.query.filter(Stripe.id == kwargs['sid']).one()
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except NoResultFound:
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log.warning("Stripe not found: id=%s", kwargs['sid'])
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return JSONRPCError(-1003, "Stripeid not found")
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return {'color': stripe.color.values}
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@dispatcher.add_method
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def add_stripe(**kwargs):
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"""
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Part of the Color API. Used to add stripes.
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Required parameters: name; rgb: bool; map: r: r-channel, g: g-channel, b: b-channel, cid
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"""
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if "name" not in kwargs or "rgb" not in kwargs or "map" not in kwargs or "cid" not in kwargs:
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return JSONRPCInvalidParams()
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c = Controller.query.filter(Controller.id == int(kwargs['cid'])).first()
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""" :type c: ledd.controller.Controller """
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if c is None:
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return JSONRPCError(-1002, "Controller not found")
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s = Stripe(name=kwargs['name'], rgb=bool(kwargs['rgb']),
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channel_r=kwargs['map']['r'], channel_g=kwargs['map']['g'], channel_b=kwargs['map']['b'])
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s.controller = c
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log.debug("Added stripe %s to controller %s; new len %s", s.id, c.id, len(c.stripes))
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session.commit()
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return {'sid': s.id}
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@dispatcher.add_method
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def get_stripes(**kwargs):
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"""
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Part of the Color API. Used to get all registered stripes known to the daemon.
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Required parameters: -
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"""
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rjson = {
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'ccount': len(Controller.query.all()),
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'controller': Controller.query.all()
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}
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return rjson
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@dispatcher.add_method
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def test_channel(**kwargs):
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"""
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Part of the Color API. Used to test a channel on a specified controller.
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Required parameters: controller id: cid, channel, value
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"""
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if "cid" not in kwargs or "channel" not in kwargs or "value" not in kwargs:
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return JSONRPCInvalidParams()
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result = Controller.query.filter(Controller.id == kwargs['cid']).first()
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""" :type : ledd.controller.Controller """
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if result is not None:
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result.set_channel(kwargs['channel'], kwargs['value'], 2.8)
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else:
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return JSONRPCError(-1002, "Controller not found")
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return ""
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@dispatcher.add_method
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def discover(**kwargs):
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"""
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Part of the Color API. Used by mobile applications to find the controller.
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Required parameters: -
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"""
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return {'version': VERSION}
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class LedDProtocol(asyncio.Protocol):
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transport = None
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def connection_made(self, transport):
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log.debug("New connection from %s", transport.get_extra_info("peername"))
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self.transport = transport
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def data_received(self, data):
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try:
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d_decoded = data.decode()
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except UnicodeDecodeError:
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log.warning("Recieved undecodable data, ignoring")
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else:
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log.debug("Received: %s from: %s", d_decoded, self.transport.get_extra_info("peername"))
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self.select_task(d_decoded)
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def select_task(self, data):
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if data:
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data_split = data.splitlines()
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log.debug(data_split)
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for line in data_split:
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if line:
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self.transport.write(JSONRPCResponseManager.handle(line, dispatcher).json.encode())
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def connection_lost(self, exc):
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log.info("Lost connection to %s", self.transport.get_extra_info("peername"))
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