ytptube/app/library/HttpSocket.py

299 lines
10 KiB
Python

import asyncio
import errno
import functools
import json
import logging
import os
import pty
import shlex
import time
from datetime import datetime
import socketio
from aiohttp import web
from .common import common
from .config import Config
from .DownloadQueue import DownloadQueue
from .Emitter import Emitter
from .encoder import Encoder
from .Utils import isDownloaded, arg_converter
LOG = logging.getLogger("socket_api")
class HttpSocket(common):
"""
This class is used to handle WebSocket events.
"""
config: Config
sio: socketio.AsyncServer
def __init__(self, queue: DownloadQueue, emitter: Emitter, encoder: Encoder):
super().__init__(queue=queue, encoder=encoder)
self.sio = socketio.AsyncServer(cors_allowed_origins="*")
emitter.add_emitter(lambda event, data, **kwargs: self.sio.emit(event, encoder.encode(data), **kwargs))
self.config = Config.get_instance()
self.queue = queue
self.emitter = emitter
def ws_event(func): # type: ignore
"""
Decorator to mark a method as a socket event.
"""
@functools.wraps(func) # type: ignore
async def wrapper(*args, **kwargs):
return await func(*args, **kwargs) # type: ignore
wrapper._ws_event = func.__name__ # type: ignore
return wrapper
def attach(self, app: web.Application):
self.sio.attach(app, socketio_path=self.config.url_prefix + "socket.io")
for attr_name in dir(self):
method = getattr(self, attr_name)
if hasattr(method, "_ws_event") and self.sio:
self.sio.on(method._ws_event)(method) # type: ignore
@ws_event # type: ignore
async def cli_post(self, sid: str, data):
if not data:
await self.emitter.emit("cli_close", {"exitcode": 0}, to=sid)
return
try:
LOG.info(f"Cli command from client '{sid}'. '{data}'")
args = ["yt-dlp"] + shlex.split(data)
_env = os.environ.copy()
_env.update(
{
"TERM": "xterm-256color",
"LANG": "en_US.UTF-8",
"SHELL": "/bin/bash",
"LC_ALL": "en_US.UTF-8",
"PWD": self.config.download_path,
"FORCE_COLOR": "1",
"PYTHONUNBUFFERED": "1",
}
)
master_fd, slave_fd = pty.openpty()
proc = await asyncio.create_subprocess_exec(
*args,
cwd=self.config.download_path,
stdin=asyncio.subprocess.DEVNULL,
stdout=slave_fd,
stderr=slave_fd,
env=_env,
)
try:
os.close(slave_fd)
except Exception as e:
LOG.error(f"Error closing PTY. '{str(e)}'.")
async def read_pty():
loop = asyncio.get_running_loop()
buffer = b""
while True:
try:
chunk = await loop.run_in_executor(None, lambda: os.read(master_fd, 1024))
except OSError as e:
if e.errno == errno.EIO:
break
else:
raise
if not chunk:
# No more output
if buffer:
# Emit any remaining partial line
await self.emitter.emit(
"cli_output", {"type": "stdout", "line": buffer.decode("utf-8", errors="replace")}
)
break
buffer += chunk
*lines, buffer = buffer.split(b"\n")
for line in lines:
await self.emitter.emit(
"cli_output", {"type": "stdout", "line": line.decode("utf-8", errors="replace")}
)
try:
os.close(master_fd)
except Exception as e:
LOG.error(f"Error closing PTY. '{str(e)}'.")
# Start reading output from PTY
read_task = asyncio.create_task(read_pty())
# Wait until process finishes
returncode = await proc.wait()
# Ensure reading is done
await read_task
await self.emitter.emit("cli_close", {"exitcode": returncode}, to=sid)
except Exception as e:
LOG.error(f"CLI execute exception was thrown for client '{sid}'.")
LOG.exception(e)
await self.emitter.emit(
"cli_out1put",
{
"type": "stderr",
"line": str(e),
},
to=sid,
)
await self.emitter.emit("cli_close", {"exitcode": -1}, to=sid)
@ws_event # type: ignore
async def add_url(self, sid: str, data: dict):
url: str | None = data.get("url")
if not url:
await self.emitter.warning("No URL provided.", to=sid)
return
preset: str = str(data.get("preset", self.config.default_preset))
folder: str = str(data.get("folder")) if data.get("folder") else ""
ytdlp_cookies: str = str(data.get("ytdlp_cookies")) if data.get("ytdlp_cookies") else ""
output_template: str = str(data.get("output_template")) if data.get("output_template") else ""
ytdlp_config = data.get("ytdlp_config")
if isinstance(ytdlp_config, str) and ytdlp_config:
try:
ytdlp_config = json.loads(ytdlp_config)
except Exception as e:
await self.emitter.warning(f"Failed to parse json yt-dlp config. {str(e)}", to=sid)
return
status = await self.add(
url=url,
preset=preset,
folder=folder,
ytdlp_cookies=ytdlp_cookies,
ytdlp_config=ytdlp_config if isinstance(ytdlp_config, dict) else {},
output_template=output_template,
)
await self.emitter.emit("status", status, to=sid)
@ws_event # type: ignore
async def item_cancel(self, sid: str, id: str):
if not id:
await self.emitter.warning("Invalid request.", to=sid)
return
status: dict[str, str] = {}
status = await self.queue.cancel([id])
status.update({"identifier": id})
await self.emitter.emit("item_cancel", status)
@ws_event # type: ignore
async def item_delete(self, sid: str, data: dict):
if not data:
await self.emitter.warning("Invalid request.", to=sid)
return
id: str | None = data.get("id")
if not id:
await self.emitter.warning("Invalid request.", to=sid)
return
status: dict[str, str] = {}
status = await self.queue.clear([id], remove_file=bool(data.get("remove_file", False)))
status.update({"identifier": id})
await self.emitter.emit("item_delete", status)
@ws_event # type: ignore
async def archive_item(self, sid: str, data: dict):
if not isinstance(data, dict) or "url" not in data or not self.config.keep_archive:
return
if not isinstance(self.config.ytdl_options, dict):
self.config.ytdl_options = {}
file: str = self.config.ytdl_options.get("download_archive", None)
if not file:
return
exists, idDict = isDownloaded(file, data["url"])
if exists or "archive_id" not in idDict or idDict["archive_id"] is None:
return
with open(file, "a") as f:
f.write(f"{idDict['archive_id']}\n")
manual_archive = self.config.manual_archive
if manual_archive:
previouslyArchived = False
if os.path.exists(manual_archive):
with open(manual_archive, "r") as f:
for line in f.readlines():
if idDict["archive_id"] in line:
previouslyArchived = True
break
if not previouslyArchived:
with open(manual_archive, "a") as f:
f.write(f"{idDict['archive_id']} - at: {datetime.now().isoformat()}\n")
LOG.info(f"Archiving url '{data['url']}' with id '{idDict['archive_id']}'.")
@ws_event # type: ignore
async def connect(self, sid: str, _=None):
data = {
**self.queue.get(),
"config": self.config.frontend(),
"tasks": self.config.tasks,
"presets": self.config.presets,
"paused": self.queue.isPaused(),
}
# get download folder listing
downloadPath: str = self.config.download_path
data["folders"] = [name for name in os.listdir(downloadPath) if os.path.isdir(os.path.join(downloadPath, name))]
await self.emitter.emit("initial_data", data, to=sid)
@ws_event # type: ignore
async def pause(self, sid: str, _=None):
self.queue.pause()
await self.emitter.emit("paused", {"paused": True, "at": time.time()})
@ws_event # type: ignore
async def resume(self, sid: str, _=None):
self.queue.resume()
await self.emitter.emit("paused", {"paused": False, "at": time.time()})
@ws_event
async def ytdlp_convert(self, sid: str, data: dict):
if not isinstance(data, dict) or "args" not in data:
await self.emitter.warning("Invalid request or no options were given.", to=sid)
return
args: str | None = data.get("args")
if not args:
await self.emitter.warning("no options were given.", to=sid)
return
try:
await self.emitter.emit("ytdlp_convert", arg_converter(args), to=sid)
return
except Exception as e:
err = str(e).strip()
err = err.split("\n")[-1] if "\n" in err else err
LOG.error(f"Failed to convert args. '{err}'.")
await self.emitter.error(f"Failed to convert options. '{e}'.", to=sid)