2 # Copyright (c) 2016-2022 by Someone <someone@somenet.org> (aka. Jan Vales <jan@jvales.net>)
3 # published under MIT-License
16 from inspect import cleandoc
17 from http.server import BaseHTTPRequestHandler, HTTPServer
18 from urllib.request import Request, urlopen
19 from socketserver import ThreadingMixIn
25 logger = logging.getLogger(__name__)
29 def __init__(self, local_websrv_hostname="localhost", local_websrv_port=18065, api_user=None, api_user_pw=None, api_bearer=None, mm_api_url="http://localhost:8065/api", mm_ws_url="ws://localhost:8065/api/v4/websocket", debug_chan_id=None):
30 self.local_websrv_hostname = local_websrv_hostname
31 self.local_websrv_port = local_websrv_port
32 self.api_user = api_user
33 self.mm_api_url = mm_api_url
34 self.mm_ws_url = mm_ws_url
36 self.local_websrv_url = ("http://"+self.local_websrv_hostname+":"+str(self.local_websrv_port)+"/").strip("/")
40 self.debug_chan_id = debug_chan_id
41 self.command_stats = {}
47 atexit.register(self.on_shutdown)
48 signal.signal(signal.SIGUSR1, self.on_SIGUSR1)
49 signal.signal(signal.SIGTERM, self.shutdown)
50 signal.signal(signal.SIGINT, self.shutdown)
52 # monkey-patch thread naming
55 def _rename_current_thread(self, name, thread):
56 if thread == threading.current_thread():
58 pyprctl.set_name(name)
60 def _bootstrap_named_thread(self):
61 self.rename_current_thread(self._name, threading.current_thread())
62 self.original_bootstrap()
64 threading.Thread.original_bootstrap = threading.Thread._bootstrap
65 threading.Thread._bootstrap = _bootstrap_named_thread
68 logger.error('pyprctl module is not installed. You will not be able to see thread names')
69 def _rename_current_thread(self, name, thread):
70 if thread == threading.current_thread():
73 threading.Thread.rename_current_thread = _rename_current_thread
76 # Core-Command: /use-data
77 self.USETOPICS = {"bot":cleandoc("""##### Here I am, brain the size of a planet, and they ask me to fill in some missing MM-features and be fun ... It gives me a headache.
78 Written by **``@someone``** in python3. Big thanks to contributors: **``@ju``**, **``@gittenburg``**
79 Inspiring ideas by: ``@bearza``, ``@frunobulax``, **``@x5468656f``**
81 Feel like contributing too? Talk to **``@someone``**. :)
82 The repository is here: https://git.somenet.org/pub/jan/mattermost-bot.git
85 if api_user is not None and api_user_pw is not None:
86 logger.info("User credentials given. Trying to login.")
87 self.api = mattermost.MMApi(self.mm_api_url)
88 self.api.login(api_user, api_user_pw)
89 elif api_user is not None:
90 self.api = mattermost.MMApi(self.mm_api_url)
91 self.api.login(bearer=api_bearer)
95 # Register a module with the bot.
96 def register(self, module):
97 if module.TEAM_ID not in self.modules:
98 self.modules[module.TEAM_ID] = {}
100 if module.TRIGGER not in self.modules[module.TEAM_ID]:
101 self.modules[module.TEAM_ID][module.TRIGGER] = module
102 module._on_register(self)
105 raise Exception("Multiple registration attempts for module: "+module.TRIGGER+" and team: "+module.TEAM_ID)
109 # Register a websocket handling module with the bot.
110 # There is no useful way to discriminate WS-events by originating teams atm. :(
111 def register_ws(self, module, eventlist):
112 for evtype in eventlist:
113 if evtype not in self.wsmodules:
114 self.wsmodules[evtype] = {}
116 if module.NAME not in self.wsmodules[evtype]:
117 self.wsmodules[evtype][module.NAME] = module
118 module._on_register_ws_evtype(self, evtype)
121 raise Exception("Multiple registration attempts for module: "+module.NAME+" and evtype: "+evtype)
126 logger.info("Starting: Almost there.")
127 logger.info(pprint.pformat(self.modules))
128 logger.info(pprint.pformat(self.wsmodules))
130 if self.mm_ws_url is not None:
131 self.mmws = mattermost.ws.MMws(self.websocket_handler, self.api, self.mm_ws_url)
133 if self.local_websrv_hostname is not None and self.local_websrv_port is not None:
134 self.start_webserver()
138 def on_shutdown(self):
139 logger.info("Shutting down ...")
142 self.mmws.close_websocket()
144 for team_modules in self.modules:
145 for module in self.modules[team_modules]:
146 self.modules[team_modules][module]._on_shutdown()
148 for evtype in self.wsmodules:
149 for module in self.wsmodules[evtype]:
150 self.wsmodules[evtype][module]._on_shutdown()
153 self.command_stats_dump()
161 def shutdown(self, unk1=None, unk2=None, exit_code=0):
165 def on_SIGUSR1(self, unk1=None, unk2=None):
166 logger.info("on_SIGUSR1()")
167 self.sigusr1_cnt += 1
168 self.command_stats_inc("internal::SIGUSR1")
169 self.command_stats_dump()
171 for team_modules in self.modules:
172 for module in self.modules[team_modules]:
173 self.modules[team_modules][module]._on_SIGUSR1(self.sigusr1_cnt)
175 for evtype in self.wsmodules:
176 for module in self.wsmodules[evtype]:
177 self.wsmodules[evtype][module]._on_SIGUSR1(self.sigusr1_cnt)
181 def debug_chan(self, message):
182 if self.debug_chan_id is None:
183 logger.error("debug_chan() called, but debug_chan_id is unspecified.")
185 self.api.create_post(self.debug_chan_id, "``AUTODELETE-DAY``\n"+message)
189 def command_stats_inc(self, command, amount=1):
190 if command in self.command_stats:
191 self.command_stats[command] += amount
193 self.command_stats[command] = amount
197 def command_stats_dump(self):
198 self.dump_stats_json(self.command_stats, "/tmp/somebot_command_stats.json", "#command_usage #mmstats")
199 self.command_stats = {}
203 def dump_stats_json(self, stats_data, file_path, header="", footer="", no_data_text=""):
209 with open(file_path, "r") as file:
210 old_stats = json.load(file)
211 for item, cnt in old_stats["data"].items():
212 if item in stats_data:
213 stats_data[item] += cnt
215 stats_data[item] = cnt
216 except (FileNotFoundError, json.JSONDecodeError, KeyError):
219 # if no data, but file exists: skip write
220 if not do_write and "header" in old_stats and "footer" in old_stats and "no_data_text" in old_stats and old_stats["header"] == header and old_stats["footer"] == footer and old_stats["no_data_text"] == no_data_text:
223 logger.info("dump_stats_json(): writing file: %s", file_path)
224 self.command_stats_inc("internal::dump_stats_json:"+file_path)
226 with open(file_path, "w", encoding="utf-8") as file:
227 json.dump({"header":header, "footer":footer, "no_data_text":no_data_text, "data":dict(sorted(stats_data.items()))}, file, ensure_ascii=False, indent=2)
231 ##########################
232 # Bot's websocket client #
233 ##########################
234 def websocket_handler(self, mmws, event_data):
235 for evtype in self.wsmodules:
236 if evtype == event_data["event"]:
237 for module_name in self.wsmodules[evtype]:
239 if self.wsmodules[evtype][module_name].on_WS_EVENT(event_data):
240 self.command_stats_inc("ws::"+evtype+"::"+module_name)
242 exctxt = "".join(traceback.format_exc())
250 def start_webserver(self):
251 logger.info("Starting webserver.")
253 class HTTPRequestHandler(BaseHTTPRequestHandler):
259 threading.current_thread().rename_current_thread("HTTPRequestHandler", threading.current_thread())
262 if self.headers["Content-Type"] == "application/x-www-form-urlencoded":
263 data = urllib.parse.parse_qs(self.rfile.read(int(self.headers["Content-Length"])).decode("utf-8"), keep_blank_values=True)
264 # only accept first occurence
265 data = {k: v[0] for k, v in data.items()}
267 elif self.headers["Content-Type"] == "application/json":
268 data = json.loads(self.rfile.read(int(self.headers["Content-Length"])).decode("utf-8"))
276 if "response_url" in data:
277 self.responseURL = data["response_url"]
281 logger.debug("do_POST(): request incomming.")
283 module = 'not yet known'
284 splitpath = self.path.strip("/").split("/")
285 if splitpath[0] in self.bot.modules and splitpath[1] in self.bot.modules[splitpath[0]]:
286 module = self.bot.modules[splitpath[0]][splitpath[1]]
289 if len(splitpath) > 2 and splitpath[2] == "command":
290 if "token" in data and module.mm_secret_token == data["token"]:
291 self.bot.command_stats_inc("/"+splitpath[1]+"/"+splitpath[2])
292 module._on_POST(self, data)
295 logger.error("do_POST(): Auth problem: Shutting down: mm_secret_token mismatch expected/got -%s-%s-", module.mm_secret_token, data["token"])
296 traceback.print_stack()
298 self.bot.on_shutdown()
301 # interactive button-handler. TODO auth!
302 elif len(splitpath) > 2 and splitpath[2] == "interactive":
303 self.bot.command_stats_inc("/"+splitpath[1]+"/"+splitpath[2])
304 module._on_POST_interactive(self, data)
306 # dialog-handler: TODO: auth!
307 elif len(splitpath) > 2 and splitpath[2] == "dialog":
308 self.bot.command_stats_inc("/"+splitpath[1]+"/"+splitpath[2])
309 module._on_POST_dialog(self, data)
311 else: # Invalid command action
312 logger.error("do_POST(): Invalid command action.")
313 self.bot.debug_chan("do_POST(): Invalid command action.\n# :boom::boom::boom::boom::boom:\n```\n"+self.path+"\n```")
314 self.respond_cmd_err("Invalid command action")
316 else: # Invalid command/unknown command
317 logger.error("do_POST(): Invalid command/unknown command.")
318 self.bot.debug_chan("do_POST(): Invalid command/unknown command.\n# :boom::boom::boom::boom::boom:\n```\n"+self.path+"\n```")
319 self.respond_cmd_err("Invalid command/unknown command")
322 self.bot.debug_chan("##### Error in module: ``"+repr(module)+"``\n# :boom::boom::boom::boom::boom:\n```\n"+traceback.format_exc()+"\n```")
324 # always try to fail to retain userinput. If previously responded to, nothing will happen.
325 self.respond(400, if_nonzero_secondary='ignore')
329 # Send a response to the channel.
330 def respond_cmd_chan(self, message, props=None, att=None, http_code=200):
331 data = {"skip_slack_parsing":True, "response_type":"in_channel", "text":message}
334 data.update({"props": props})
337 data.update({"attachments": att})
339 self.respond(http_code, data)
343 # Send a ephemeral response to the user.
344 def respond_cmd_temp(self, message, props=None, att=None, http_code=200):
345 data = {"skip_slack_parsing":True, "response_type":"ephemeral", "text":message}
348 data.update({"props": props})
351 data.update({"attachments": att})
353 self.respond(http_code, data)
356 def respond_interactive_temp(self, message, http_code=200):
357 # cant be secondary, because no response url (interactive messages only?)
358 self.respond(http_code, {"ephemeral_text":message})
362 # Use to send a failure to the user. Use only the first time during a request. Should retain input on clientside.
363 def respond_cmd_err(self, message, props=None):
364 data = {"skip_slack_parsing":True, "response_type":"ephemeral", "text": "## :x: Failure! :(\n### "+message}
367 data.update({"props": props})
369 # must be 2 separatecalls, as the message is ignored in a non-200.
371 self.respond(000, data)
375 def respond(self, http_code=200, data=None, if_nonzero_secondary='exc'):
377 First response call must have a valid http code.
378 Secondary responses should have http_code = 0.
379 use if_nonzero_secondary = 'ignore' to ignore response with http_code != 0.
380 use if_nonzero_secondary = 'force' to send secondary with http_code != 0.
388 if http_code >= 600 or http_code < 100:
389 raise Exception("respond(): Primary response must have a valid http code.")
392 self.send_response(http_code)
393 self.send_header("Content-Type", "application/json")
394 self.send_header("Content-Length", len(bytes(json.dumps(data), "utf8")))
396 self.wfile.write(bytes(json.dumps(data), "utf8"))
397 logger.debug("respond(): Primary response send.")
400 # Secondary responses
402 if http_code != 0 and if_nonzero_secondary == "ignore":
403 logger.info("respond(): Secondary responses must have a zero http code, but if_nonzero_secondary='ignore'. Doing nothing.")
406 elif http_code != 0 and if_nonzero_secondary == "force":
407 logger.warning("respond(): Secondary responses must have a zero http code, but if_nonzero_secondary='force'. Sending anyway.")
408 traceback.print_stack()
411 raise Exception("respond(): Secondary responses must have a zero http code.")
414 if not self.responseURL:
415 raise Exception("respond(): Secondary response attempt without response url.")
418 logger.debug("respond(): Secondary response. Using responseURL: %s", self.responseURL)
419 req = Request(self.responseURL, data=bytes(json.dumps(data), "utf8"), method='POST')
420 req.add_header("Content-Type", "application/json")
421 conn = urlopen(req, timeout=3)
422 logger.debug("respond(): Secondary response send. Status: %s", conn.status)
426 class MyHTTPServer(ThreadingMixIn, HTTPServer):
427 def serve_forever(self, bot):
428 self.RequestHandlerClass.bot = bot
429 HTTPServer.serve_forever(self)
431 self.httpd = MyHTTPServer((self.local_websrv_hostname, self.local_websrv_port), HTTPRequestHandler)
432 threading.current_thread().rename_current_thread("HTTPServer", threading.current_thread())
433 self.httpd.serve_forever(self)