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import base64
import json
import threading
import logging
import http.server
from functools import partial
from urllib.parse import urlparse, parse_qsl
from openswitcher_proxy.frontend import AuthRequestHandler
from pyatem.field import FieldBase
import pyatem.command as commandmodule
class FieldEncoder(json.JSONEncoder):
def default(self, obj):
if isinstance(obj, FieldBase):
temp = obj.__dict__
result = {}
for key in temp:
if key == 'raw':
continue
result[key] = temp[key]
return result
elif isinstance(obj, bytes):
return base64.b64encode(obj).decode()
return obj
class ApiRequestHandler(AuthRequestHandler):
def __init__(self, config, threadpool, *args, **kwargs):
self.config = config
self.threadpool = threadpool
super().__init__(*args, **kwargs)
def response(self, data, status=200):
self.send_response(status)
self.send_header('Content-type', 'application/json')
self.end_headers()
raw = json.dumps(data, cls=FieldEncoder, indent=2)
self.wfile.write(raw.encode())
def do_GET(self):
if not self.verify_auth():
return
path = self.path
allowed_hw = self.config['hardware'].split(',')
if path == '/':
hardware = []
for hw in allowed_hw:
row = {
'id': hw,
}
if hw not in self.threadpool['hardware']:
row['status'] = 'missing'
else:
row['status'] = self.threadpool['hardware'][hw].get_status()
hardware.append(row)
self.response({'hardware': hardware})
return
parts = urlparse(path)
path = parts.path[1:]
part = path.split('/')
args = parts.query
if len(part) < 2:
return self.response({}, 400)
if part[0] not in allowed_hw:
return self.response({'error': 'unknown device specified'}, 404)
hw = part[0]
fieldname = part[1]
if fieldname in self.threadpool['hardware'][hw].switcher.mixerstate:
field = self.threadpool['hardware'][hw].switcher.mixerstate[fieldname]
return self.response(field)
else:
return self.response({'error': 'unknown field'}, 404)
def do_POST(self):
if not self.verify_auth():
return
path = self.path
allowed_hw = self.config['hardware'].split(',')
parts = urlparse(path)
path = parts.path[1:]
part = path.split('/')
args = parts.query
if len(part) < 2:
return self.response({}, 400)
if part[0] not in allowed_hw:
return self.response({'error': 'unknown device specified'}, 404)
hw = part[0]
fieldname = part[1]
classname = fieldname.title().replace('-', '') + "Command"
if not hasattr(commandmodule, classname):
return self.response({'error': 'unknown command'}, 404)
rt = self.headers['Content-type']
if rt is None:
arguments = dict(parse_qsl(args))
elif rt == 'application/x-www-form-urlencoded':
length = int(self.headers['Content-length'])
raw = self.rfile.read(length).decode()
arguments = dict(parse_qsl(raw))
elif rt == 'application/json':
length = int(self.headers['Content-length'])
raw = self.rfile.read(length).decode()
arguments = json.loads(raw)
else:
return self.response({'error': 'unknown content-type'}, 400)
for key in arguments:
try:
arguments[key] = int(arguments[key])
except:
pass
if 'source' in arguments:
inputs = self.threadpool['hardware'][hw].switcher.inputs
if arguments['source'] in inputs:
arguments['source'] = inputs[arguments['source']]
try:
cmd = getattr(commandmodule, classname)(**arguments)
self.threadpool['hardware'][hw].switcher.send_commands([cmd])
except Exception as e:
return self.response({"error": str(e)}, 500)
return self.response({"status": "ok"})
class HttpApiFrontendThread(threading.Thread):
def __init__(self, config, threadlist):
threading.Thread.__init__(self)
self.name = 'http-api.' + str(config['bind'])
self.config = config
self.threadlist = threadlist
self.stop = False
self.server = None
def run(self):
logging.info('HTTP-Api frontend run')
host, port = self.config['bind'].split(':')
address = (host, int(port))
logging.info(f'binding to {address}')
handler = partial(ApiRequestHandler, self.config, self.threadlist)
self.server = http.server.HTTPServer(address, handler)
with self.server:
self.server.serve_forever()
def handler(self, *args):
print(args)
def get_status(self):
return 'running'
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