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import sys |
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from json import dumps, loads |
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from circuits import handler, Timer, Event |
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from circuits.io import stdin |
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from circuits.net.events import write |
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from circuits.web.websockets import WebSocketClient |
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from isomer.component import LoggingComponent |
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from isomer.logger import error, verbose, debug, set_verbosity |
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from isomer.events.system import isomer_event |
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class get_data(isomer_event): |
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def __init__(self, schema, search_filter): |
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super(get_data, self).__init__() |
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self.schema = schema |
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self.search_filter = search_filter |
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class call_loop(isomer_event): |
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pass |
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class IsomerClient(LoggingComponent): |
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def __init__(self, no_stdin=False, no_stdout=False, loop_function=None, loop_frequency=60, *args, **kwargs): |
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super(IsomerClient, self).__init__(*args, **kwargs) |
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self.url = '{protocol}://{host}:{port}/{url}'.format(**kwargs) |
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if no_stdout: |
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set_verbosity(100) |
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if not no_stdin: |
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self.log("Connecting stdin") |
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stdin.register(self) |
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self.log("Connecting to isomer instance at", self.url) |
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self.username = kwargs.get('username') |
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self.password = kwargs.get('password') |
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self.max_length = 100 |
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self._request_id = 0 |
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self.messages = [] |
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self.hooks = {} |
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self.client = WebSocketClient(self.url).register(self) |
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if loop_function is not None: |
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self.log('Registering external loop function') |
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self.loop_function = loop_function |
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self.loop_timer = Timer(1/loop_frequency, call_loop(), persist=True).register(self) |
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self.log("Ready") |
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@handler("call_loop") |
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def call_loop(self, event): |
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"""Runs a given client loop for interactive processes""" |
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self.log('Running external loop') |
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try: |
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self.loop_function() |
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except Exception: |
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self.loop_timer.unregister() |
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Timer(2, Event.create("quit")).register(self) |
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@handler("quit") |
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def quit(self): |
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self.log("Quitting") |
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sys.exit() |
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@handler("registered") |
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def registered(self, event, *args): |
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if 'ws' not in event.channels: |
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self.log("Hello", event) |
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return |
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self.log('Transmitting login') |
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self.fireEvent(write(""), "ws") |
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packet = { |
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'component': 'auth', |
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'action': 'login', |
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'data': { |
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'username': self.username, |
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'password': self.password |
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} |
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} |
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self._transmit(packet) |
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def _transmit(self, packet): |
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self.log(packet) |
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unicode = dumps(packet).encode('utf-8') |
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self.log(unicode, type(unicode)) |
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self.fireEvent(write(bytes(unicode)), 'ws') |
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@handler("read") |
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def read(self, *args): |
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self.log("Reading") |
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msg = args[0] |
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self._handle_message(msg) |
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self.messages.append(msg) |
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if len(msg) > self.max_length: |
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msg = str(msg)[:self.max_length] + " ..." |
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self.log("Response [%i]: %s" % (len(self.messages), msg)) |
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def _handle_message(self, msg): |
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try: |
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decoded = loads(msg) |
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except Exception: |
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self.log("Couldn't decode message!") |
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return |
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if decoded['component'] == 'isomer.auth' and decoded['action'] == 'fail': |
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self.log("Login failed. Check credentials and url!", lvl=error) |
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sys.exit() |
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@handler("read", channel="stdin") |
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def stdin_read(self, data): |
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"""read Event (on channel ``stdin``) |
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This is the event handler for ``read`` events specifically from the |
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``stdin`` channel. This is triggered each time stdin has data that |
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it has read. |
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""" |
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data = data.strip().decode("utf-8") |
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self.log("Incoming:", data, lvl=verbose) |
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if len(data) == 0: |
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self.log('Use /help to get a list of client commands') |
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return |
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if data[0] == "/": |
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cmd = data[1:] |
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args = [] |
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if ' ' in cmd: |
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cmd, args = cmd.split(' ', maxsplit=1) |
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args = args.split(' ') |
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if cmd in self.hooks: |
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self.log('Firing hooked event:', cmd, args, lvl=debug) |
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self.fireEvent(self.hooks[cmd](*args)) |
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if cmd.lower() in ('send', 's'): |
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data = " ".join(args) |
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json = loads(" ".join(args)) |
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self.log("Transmitting:", data, pretty=True, lvl=debug) |
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self.fireEvent(write(data), 'ws') |
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if cmd.lower() in ('history', 'h'): |
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position = int(args[0]) |
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pretty = '-p' in args |
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self.log('Response [%i]: %s' % (position, self.messages[position]), |
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pretty=pretty) |
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if cmd.lower() == "test": |
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self.fireEvent(get_data('user', {'name': 'riot'})) |
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if cmd.lower() in ('quit', 'q'): |
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self.log('Initiating system exit in 3 seconds on request.', lvl=verbose) |
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Timer(3, Event.create("quit")).register(self) |
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def get_data(self, event: get_data): |
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"""Request data from Isomer server""" |
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request = { |
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'component': 'isomer.events.objectmanager', |
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'action': 'search', |
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'data': { |
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'schema': event.schema, |
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'search': event.search_filter, |
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'req': self._request_id |
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} |
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} |
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self._transmit(request) |
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self._request_id += 1 |
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isomeric /
isomer
