hosting/clore_hosting/ws_interface.py

from concurrent.futures import ThreadPoolExecutor
import asyncio
import random
import websockets
import json

from lib import config as config_module
config = config_module.config

from lib import logging as logging_lib
from lib import utils

from clore_hosting import utils as clore_utils
log = logging_lib.log

async def run_command_via_executor(command):
    loop = asyncio.get_running_loop()
    with ThreadPoolExecutor() as pool:
        await loop.run_in_executor(pool, utils.run_command_v2, command)

def trim_container_log(string):
    if len(string) > config.max_container_log_size:
        return string[-config.max_container_log_size:]
    else:
        return string

class WebSocketClient:
    def __init__(self, log_message_broker, auth=None):
        self.ws_peers = []
        self.connection = None
        self.connected = False
        self.authorized = False
        self.auth = auth
        self.log_auth_fail = True
        self.last_heartbeat = clore_utils.unix_timestamp()
        self.containers={}
        self.containers_set=False
        
        self.pull_logs={}
        self.pull_logs_last_fingerprints={}

        self.to_stream={}

        self.log_message_broker=log_message_broker
        self.allowed_log_container_names = []
        self.current_container_logs = {}

        self.last_bash_rnd = ''
    
    def get_last_heartbeat(self):
        return self.last_heartbeat

    def get_containers(self):
        return self.containers_set, self.containers

    def set_ws_peers(self, ws_peers):
        tmp_ws_peers=[]
        for ws_peer in list(ws_peers.keys()):
            if clore_utils.is_valid_websocket_url(ws_peer):
                tmp_ws_peers.append(ws_peer)

        self.ws_peers = tmp_ws_peers
    
    def set_auth(self, auth):
        self.auth=auth

    def set_pull_logs(self, pull_logs):
        self.pull_logs=pull_logs

    async def close_websocket(self, timeout=5):
        try:
            await asyncio.wait_for(self.connection.close(), timeout)
        except asyncio.TimeoutError:
            log.debug("close_websocket() | Closing timed out. Forcing close.")
            try:
                await self.connection.ensure_open()  # Force close
            except Exception as e:
                pass

    async def connect(self):
        if len(self.ws_peers)>0 and self.auth:
            random_ws_peer = random.choice(self.ws_peers)
            try:
                self.connection = await websockets.connect(random_ws_peer)
                self.connected = True
                log.debug(f"CLOREWS | Connected to {random_ws_peer} ✅")
                await self.send(json.dumps({
                    "login":str(self.auth),
                    "type":"python"
                }))
            except Exception as e:
                log.debug(f"CLOREWS | Connection to {random_ws_peer} failed: {e} ❌")
                self.connected = False
                self.authorized = False
                self.pull_logs_last_fingerprints={}

            
    async def send(self, message):
        try:
            if self.connection and self.connected:
                if type(message)==dict:
                    message=json.dumps(message)
                await self.connection.send(message)
                log.debug(f"CLOREWS | Message sent: {message}")
                return True
            else:
                return False
        except Exception as e:
            return False

    async def receive(self):
        while self.connected:
            try:
                message = await self.connection.recv()
                if message=="NOT_AUTHORIZED" and self.log_auth_fail:
                    self.log_auth_fail = False
                    log.error("🔑 Invalid auth key for clore.ai")
                elif message=="AUTHORIZED":
                    self.log_auth_fail = True
                    self.containers_set = False
                    self.last_heartbeat = clore_utils.unix_timestamp()
                    self.authorized=True
                    log.success("🔑 Authorized with clore.ai")
                    try:
                        current_container_logs_keys = self.current_container_logs.keys()
                        for container_name in current_container_logs_keys:
                            await self.send(json.dumps({"container_log": self.current_container_logs[container_name], "type":"set", "container_name":container_name}))
                    except Exception as ei:
                        pass
                elif message=="KEEPALIVE":
                    self.last_heartbeat = clore_utils.unix_timestamp()
                elif message=="NEWER_LOGIN" or message=="WAIT":
                    await self.close_websocket()
                elif message[:10]=="PROVEPULL;":
                    parts = message.split(';')
                    if len(parts)==3 and parts[1] in self.to_stream:
                        current_log = self.to_stream[parts[1]]
                        current_log_hash = utils.hash_md5(current_log)
                        if current_log_hash==parts[2]:
                            del self.to_stream[parts[1]]
                else:
                    try:
                        parsed_json = json.loads(message)
                        if "type" in parsed_json and parsed_json["type"]=="set_containers" and "new_containers" in parsed_json and type(parsed_json["new_containers"])==list:
                            self.last_heartbeat = clore_utils.unix_timestamp()
                            container_str = json.dumps({"containers":parsed_json["new_containers"]})
                            await self.send(container_str)
                            if len(parsed_json["new_containers"]) > 0: # There should be at least one container
                                self.containers_set = True
                                self.containers=parsed_json["new_containers"]
                            #log.success(container_str)
                        elif "allow_oc" in parsed_json: # Enable OC
                            await self.send(json.dumps({"allow_oc":True}))
                        elif "set_oc" in parsed_json: # Set specific OC
                            back_oc_str = json.dumps({"current_oc":json.dumps(parsed_json["set_oc"], separators=(',',':'))})
                            await self.send(back_oc_str)
                        elif "bash_cmd" in parsed_json and type(parsed_json["bash_cmd"])==str and "bash_rnd" in parsed_json:
                            await self.send(json.dumps({"bash_rnd":parsed_json["bash_rnd"]}))
                            if self.last_bash_rnd!=parsed_json["bash_rnd"]:
                                self.last_bash_rnd=parsed_json["bash_rnd"]
                                asyncio.create_task(run_command_via_executor(parsed_json["bash_cmd"]))

                    except Exception as e:
                        log.error(f"CLOREWS | JSON | {e}")
                #log.success(f"Message received: {message}")
                # Handle received message
            except websockets.exceptions.ConnectionClosed:
                log.debug("CLOREWS | Connection closed, attempting to reconnect...")
                self.connected = False
                self.authorized = False
                self.pull_logs_last_fingerprints={}
                self.containers_set = False

    async def stream_pull_logs(self):
        if self.authorized:
            #self.pull_logs_last_fingerprints
            for image_str in self.pull_logs.keys():
                value = self.pull_logs[image_str]
                last_hash = self.pull_logs_last_fingerprints[image_str] if image_str in self.pull_logs_last_fingerprints.keys() else ''
                if "log" in value:
                    current_hash = utils.hash_md5(value["log"])
                    if last_hash != current_hash:
                        self.pull_logs_last_fingerprints[image_str]=current_hash
                        self.to_stream[image_str] = value["log"] # This makes sure, that each time it will submit the most recent version

            ttl_submited_characters=0
            for index, image in enumerate(self.to_stream.keys()):
                try:
                    if index < config.max_pull_logs_per_submit_run["instances"] and ttl_submited_characters <= config.max_pull_logs_per_submit_run["size"]:
                        submit_log = self.to_stream[image]
                        to_submit_log = submit_log[-config.max_pull_log_size:]
                        ttl_submited_characters+=len(to_submit_log)
                        await self.send({
                            "pull_log":to_submit_log,
                            "image":image
                        })
                except Exception as e:
                    log.error(e)
        return True
    
    async def stream_container_logs(self):
        got_data=[]
        while not self.log_message_broker.empty():
            got_data.append(await self.log_message_broker.get())
        #print("GOT DATA", got_data)
        if len(got_data) > 0:
            for data_sample in got_data:
                if type(data_sample)==list:
                    self.allowed_log_container_names=data_sample
                elif type(data_sample)==str and '|' in data_sample:
                    container_name, data = data_sample.split('|',1)
                    if container_name in self.allowed_log_container_names:
                        log_container_names = self.current_container_logs.keys()
                        if data=='I':
                            if container_name in log_container_names:
                                del self.current_container_logs[container_name]
                        else:
                            log_txt = data[1:]
                            if container_name in log_container_names:
                                self.current_container_logs[container_name]+=log_txt
                                await self.send(json.dumps({"container_log":log_txt, "type":"append", "container_name":container_name}))
                            else:
                                self.current_container_logs[container_name]=log_txt
                                await self.send(json.dumps({"container_log":log_txt, "type":"set", "container_name":container_name}))
                            if len(self.current_container_logs[container_name]) > config.max_container_log_size:
                                self.current_container_logs[container_name]=trim_container_log(self.current_container_logs[container_name])
            container_log_in_cache_names = self.current_container_logs.keys()
            for container_in_cache_name in container_log_in_cache_names:
                if not container_in_cache_name in self.allowed_log_container_names:
                    del self.current_container_logs[container_in_cache_name]

    async def ensure_connection(self):
        if not self.connected:
            await self.connect()

    async def run(self):
        while True:
            await self.connect()
            receive_task = asyncio.create_task(self.receive())
            await receive_task
            log.debug("CLOREWS | Waiting to reconnect WS")
            await asyncio.sleep(2)