424 lines
18 KiB
Python
424 lines
18 KiB
Python
#!/usr/bin/env python3
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"""HTTP handler and route wiring for ani-cli-web."""
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import json
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import mimetypes
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import os
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import shutil
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import traceback
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from dataclasses import dataclass
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from http import HTTPStatus
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from http.server import BaseHTTPRequestHandler
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from pathlib import Path
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from urllib.parse import parse_qs, unquote, urlparse
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from app_support import (
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ANI_CLI,
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APP_NAME,
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CLIENT_DISCONNECT_ERRORS,
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MAX_JSON_BODY_BYTES,
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MODE_CHOICES,
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VERSION,
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client_address_is_local,
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debug_enabled,
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debug_log,
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normalize_config,
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remote_access_allowed,
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remote_access_token_configured,
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remote_access_token_matches,
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)
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@dataclass(frozen=True)
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class HandlerContext:
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add_to_watchlist: object
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config_html: str
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ensure_runtime: object
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episode_list: object
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get_config_snapshot: object
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get_watchlist: object
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get_watchlist_refresh_status: object
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http_error: object
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index_html: str
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remove_from_watchlist: object
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runtime_state: object
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save_runtime_config: object
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search_anime: object
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thumbnail_file_path: object
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update_all_watchlist_statuses: object
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update_watchlist_category: object
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update_watchlist_status: object
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upload_watchlist_thumbnail: object
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watchlist_html: str
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def build_handler_class(context):
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class ConfiguredHandler(Handler):
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handler_context = context
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return ConfiguredHandler
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def dependency_status():
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checks = ["curl", "sed", "grep", "openssl", "fzf", "aria2c", "ffmpeg", "yt-dlp"]
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result = {name: bool(shutil.which(name)) for name in checks}
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result["ani-cli"] = bool(shutil.which(ANI_CLI) or (Path(ANI_CLI).exists() and os.access(ANI_CLI, os.X_OK)))
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return result
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class Handler(BaseHTTPRequestHandler):
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server_version = "AniCliWeb/1.0"
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def _context(self):
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context = getattr(self, "handler_context", None) or getattr(type(self), "handler_context", None)
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if context is None:
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raise RuntimeError("Handler context is not configured.")
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return context
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def _runtime(self):
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context = Handler._context(self)
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context.ensure_runtime(start_workers=True)
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return context.runtime_state()
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def _effective_client_host(self):
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peer_host = self.client_address[0] if self.client_address else ""
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if not client_address_is_local(peer_host):
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return peer_host
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forwarded = (
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self.headers.get("X-Forwarded-For")
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or self.headers.get("x-forwarded-for")
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or self.headers.get("X-Real-IP")
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or self.headers.get("x-real-ip")
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or ""
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)
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if forwarded:
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first = str(forwarded).split(",", 1)[0].strip().strip("[]")
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if first:
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return first
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forwarded_header = str(self.headers.get("Forwarded") or self.headers.get("forwarded") or "").strip()
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if forwarded_header:
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for part in forwarded_header.split(";"):
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key, _, value = part.partition("=")
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if key.strip().lower() != "for":
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continue
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candidate = value.strip().strip('"')
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if candidate.startswith("[") and "]" in candidate:
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candidate = candidate[1 : candidate.index("]")]
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elif ":" in candidate and candidate.count(":") == 1:
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candidate = candidate.split(":", 1)[0]
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candidate = candidate.strip()
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if candidate:
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return candidate
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return peer_host
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def _remote_token(self):
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return (
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self.headers.get("X-AniCli-Web-Token")
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or self.headers.get("x-ani-cli-web-token")
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or Handler._bearer_token(self)
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or ""
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)
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def _bearer_token(self):
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header = str(self.headers.get("Authorization") or "").strip()
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if not header.startswith("Bearer "):
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return ""
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return header[len("Bearer ") :].strip()
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def ensure_client_access(self):
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client_host = Handler._effective_client_host(self)
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if client_address_is_local(client_host):
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return
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if not remote_access_allowed():
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raise PermissionError(
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"Remote access is disabled. Set ANI_CLI_WEB_ALLOW_REMOTE=1 to allow non-local clients."
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)
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if not remote_access_token_configured():
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raise PermissionError(
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"Remote access requires ANI_CLI_WEB_REMOTE_TOKEN for non-local clients."
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)
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if not remote_access_token_matches(Handler._remote_token(self)):
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raise PermissionError("Remote access token missing or invalid.")
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def do_GET(self):
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parsed = urlparse(self.path)
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try:
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self.ensure_client_access()
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if parsed.path == "/":
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self.html(Handler._context(self).index_html)
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elif parsed.path == "/config":
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self.html(Handler._context(self).config_html)
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elif parsed.path == "/watchlist":
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self.html(Handler._context(self).watchlist_html)
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elif parsed.path == "/api/config":
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self.json(Handler._context(self).get_config_snapshot())
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elif parsed.path == "/api/version":
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self.json({"name": APP_NAME, "version": VERSION})
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elif parsed.path == "/api/dependencies":
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self.json(dependency_status())
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elif parsed.path == "/api/search":
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runtime = Handler._runtime(self)
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config = runtime["config"]
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params = parse_qs(parsed.query)
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query = (params.get("q") or [""])[0].strip()
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mode = (params.get("mode") or [config["mode"]])[0].lower()
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if not query:
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raise ValueError("Search query is required")
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if mode not in MODE_CHOICES:
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raise ValueError("Mode must be sub or dub")
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self.json({"results": Handler._context(self).search_anime(query, mode)})
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elif parsed.path.startswith("/api/anime/") and parsed.path.endswith("/episodes"):
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runtime = Handler._runtime(self)
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config = runtime["config"]
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show_id = unquote(parsed.path[len("/api/anime/") : -len("/episodes")])
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params = parse_qs(parsed.query)
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mode = (params.get("mode") or [config["mode"]])[0].lower()
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if mode not in MODE_CHOICES:
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raise ValueError("Mode must be sub or dub")
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self.json({"episodes": Handler._context(self).episode_list(show_id, mode)})
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elif parsed.path == "/api/queue":
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runtime = Handler._runtime(self)
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params = parse_qs(parsed.query)
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page = (params.get("page") or ["1"])[0]
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per_page = (params.get("per_page") or ["10"])[0]
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self.json(runtime["download_queue"].list(page=page, per_page=per_page))
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elif parsed.path.startswith("/api/watchlist/thumb/"):
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runtime = Handler._runtime(self)
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show_id = unquote(parsed.path[len("/api/watchlist/thumb/") :]).strip()
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debug_log("thumbnail.route.request", show_id=show_id, path=parsed.path, query=parsed.query)
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item = runtime["watchlist"].get(show_id)
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path = Handler._context(self).thumbnail_file_path(item.get("thumbnail_path"))
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if not path or not path.exists():
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debug_log("thumbnail.route.miss", show_id=show_id, resolved_path=path)
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self.error(HTTPStatus.NOT_FOUND, "Thumbnail not found")
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return
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debug_log("thumbnail.route.hit", show_id=show_id, resolved_path=path)
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self.file(path)
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elif parsed.path in {"/api/watchlist", "/api/watchlist/get"}:
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Handler._runtime(self)
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params = parse_qs(parsed.query)
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page = (params.get("page") or ["1"])[0]
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per_page = (params.get("per_page") or ["30"])[0]
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category = (params.get("category") or [""])[0].strip().lower() or None
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self.json(Handler._context(self).get_watchlist(page=page, per_page=per_page, category=category))
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elif parsed.path == "/api/watchlist/refresh-status":
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Handler._runtime(self)
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self.json(Handler._context(self).get_watchlist_refresh_status())
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else:
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self.error(HTTPStatus.NOT_FOUND, "Not found")
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except Exception as exc:
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self.exception(exc)
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def do_POST(self):
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parsed = urlparse(self.path)
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try:
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self.ensure_client_access()
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if parsed.path == "/api/config":
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Handler.update_config(self, Handler.require_json_object(self, self.body_json()))
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elif parsed.path == "/api/queue":
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runtime = Handler._runtime(self)
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self.json(runtime["download_queue"].add(self.body_json()), HTTPStatus.CREATED)
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elif parsed.path == "/api/queue/retry-failed":
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runtime = Handler._runtime(self)
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self.json(runtime["download_queue"].retry_all_failed())
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elif parsed.path == "/api/queue/clear-finished":
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runtime = Handler._runtime(self)
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self.json(runtime["download_queue"].clear_finished())
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elif parsed.path.startswith("/api/queue/"):
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runtime = Handler._runtime(self)
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parts = parsed.path.strip("/").split("/")
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if len(parts) != 4:
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self.error(HTTPStatus.NOT_FOUND, "Not found")
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return
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_, _, job_id, action = parts
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actions = {
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"retry": runtime["download_queue"].retry,
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"cancel": runtime["download_queue"].cancel,
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"remove": runtime["download_queue"].remove,
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}
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if action not in actions:
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self.error(HTTPStatus.NOT_FOUND, "Not found")
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return
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self.json(actions[action](job_id))
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elif parsed.path in {"/api/watchlist", "/api/watchlist/add"}:
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Handler._runtime(self)
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result = Handler._context(self).add_to_watchlist(Handler.require_json_object(self, self.body_json()))
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status = HTTPStatus.CREATED if result.get("created") else HTTPStatus.OK
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self.json(result, status)
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elif parsed.path == "/api/watchlist/ensure-thumbnails":
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runtime = Handler._runtime(self)
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payload = Handler.require_json_object(self, self.body_json())
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self.json(
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runtime["watchlist"].ensure_thumbnails(
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Handler.optional_list_field(self, payload, "show_ids") or [],
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limit=payload.get("limit", 6),
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force=Handler.optional_bool_field(self, payload, "force", default=False),
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)
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)
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elif parsed.path == "/api/watchlist/update-status":
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Handler._runtime(self)
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payload = Handler.require_fields(self, self.body_json(), "show_id")
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self.json(Handler._context(self).update_watchlist_status(payload["show_id"], payload.get("mode")))
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elif parsed.path == "/api/watchlist/update-category":
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Handler._runtime(self)
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payload = Handler.require_fields(self, self.body_json(), "show_id")
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self.json(Handler._context(self).update_watchlist_category(payload["show_id"], payload.get("category")))
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elif parsed.path == "/api/watchlist/update-all":
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Handler._runtime(self)
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result = Handler._context(self).update_all_watchlist_statuses()
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status = HTTPStatus.ACCEPTED if result.get("created") else HTTPStatus.OK
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self.json(result, status)
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elif parsed.path == "/api/watchlist/remove":
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Handler._runtime(self)
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payload = Handler.require_fields(self, self.body_json(), "show_id")
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self.json(Handler._context(self).remove_from_watchlist(payload["show_id"]))
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elif parsed.path == "/api/watchlist/upload-thumbnail":
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Handler._runtime(self)
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payload = Handler.require_fields(self, self.body_json(), "show_id", "data_url")
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self.json(Handler._context(self).upload_watchlist_thumbnail(payload))
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else:
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self.error(HTTPStatus.NOT_FOUND, "Not found")
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except Exception as exc:
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self.exception(exc)
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def update_config(self, payload):
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config = normalize_config(payload)
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Path(config["download_dir"]).expanduser().mkdir(parents=True, exist_ok=True)
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context = Handler._context(self)
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context.save_runtime_config(config)
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self.json(context.get_config_snapshot())
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def require_fields(self, payload, *names):
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payload = Handler.require_json_object(self, payload)
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missing = [name for name in names if not str(payload.get(name) or "").strip()]
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if missing:
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if len(missing) == 1:
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raise ValueError(f"Missing required field: {missing[0]}")
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raise ValueError(f"Missing required fields: {', '.join(missing)}")
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return payload
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def require_json_object(self, payload):
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if not isinstance(payload, dict):
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raise ValueError("Expected a JSON object")
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return payload
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def optional_list_field(self, payload, name):
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payload = Handler.require_json_object(self, payload)
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if name not in payload or payload.get(name) is None:
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return None
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value = payload.get(name)
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if not isinstance(value, list):
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raise ValueError(f"Field '{name}' must be a JSON array")
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return value
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def optional_bool_field(self, payload, name, default=False):
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payload = Handler.require_json_object(self, payload)
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if name not in payload or payload.get(name) is None:
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return default
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value = payload.get(name)
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if isinstance(value, bool):
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return value
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if isinstance(value, str):
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normalized = value.strip().lower()
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if normalized in {"1", "true", "yes", "on"}:
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return True
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if normalized in {"0", "false", "no", "off"}:
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return False
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raise ValueError(f"Field '{name}' must be a boolean")
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def body_json(self):
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try:
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length = int(self.headers.get("Content-Length", "0") or "0")
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except ValueError as exc:
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raise ValueError("Invalid Content-Length header") from exc
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if length < 0:
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raise ValueError("Invalid Content-Length header")
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if length > MAX_JSON_BODY_BYTES:
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raise Handler._context(self).http_error(HTTPStatus.REQUEST_ENTITY_TOO_LARGE, "Request body too large.")
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raw_bytes = self.rfile.read(length) if length else b"{}"
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if len(raw_bytes) > MAX_JSON_BODY_BYTES:
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raise Handler._context(self).http_error(HTTPStatus.REQUEST_ENTITY_TOO_LARGE, "Request body too large.")
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try:
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raw = raw_bytes.decode("utf-8")
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except UnicodeDecodeError as exc:
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raise ValueError("Request body must be valid UTF-8 JSON.") from exc
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try:
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return json.loads(raw)
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except json.JSONDecodeError as exc:
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raise ValueError("Invalid JSON body") from exc
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def html(self, content):
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data = content.encode("utf-8")
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self.write_response_bytes(data, HTTPStatus.OK, {"Content-Type": "text/html; charset=utf-8"})
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def file(self, path):
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payload = Path(path).read_bytes()
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content_type = mimetypes.guess_type(str(path))[0] or "application/octet-stream"
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debug_log("file.serve", path=path, content_type=content_type, bytes=len(payload))
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self.write_response_bytes(
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payload,
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HTTPStatus.OK,
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{
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"Content-Type": content_type,
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"Cache-Control": "public, max-age=86400",
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},
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)
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def json(self, payload, status=HTTPStatus.OK):
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data = json.dumps(payload).encode("utf-8")
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self.write_response_bytes(data, status, {"Content-Type": "application/json"})
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def write_response_bytes(self, payload, status, headers):
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try:
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self.send_response(status)
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for key, value in headers.items():
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self.send_header(key, value)
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self.send_header("Content-Length", str(len(payload)))
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self.end_headers()
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self.wfile.write(payload)
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except CLIENT_DISCONNECT_ERRORS:
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return
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def error(self, status, message):
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try:
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self.json({"error": message}, status)
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except CLIENT_DISCONNECT_ERRORS:
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return
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def exception(self, exc):
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if isinstance(exc, CLIENT_DISCONNECT_ERRORS):
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return
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if isinstance(exc, Handler._context(self).http_error):
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self.error(exc.status, exc.message)
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elif isinstance(exc, KeyError):
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self.error(HTTPStatus.NOT_FOUND, str(exc).strip("'"))
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elif isinstance(exc, PermissionError):
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self.error(HTTPStatus.FORBIDDEN, str(exc))
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elif isinstance(exc, ValueError):
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self.error(HTTPStatus.BAD_REQUEST, str(exc))
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else:
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if debug_enabled():
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debug_log("handler.exception", path=getattr(self, "path", ""), error=exc)
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traceback.print_exc()
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else:
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debug_log("handler.exception", path=getattr(self, "path", ""), error=exc)
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self.error(HTTPStatus.INTERNAL_SERVER_ERROR, "Internal server error.")
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def log_message(self, fmt, *args):
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print(f"{self.address_string()} - {fmt % args}")
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def server_host():
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return os.environ.get("ANI_CLI_WEB_HOST", "127.0.0.1").strip() or "127.0.0.1"
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def server_port():
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raw = str(os.environ.get("ANI_CLI_WEB_PORT", "8421")).strip() or "8421"
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try:
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port = int(raw, 10)
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except ValueError as exc:
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raise ValueError("ANI_CLI_WEB_PORT must be a valid integer") from exc
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if not 1 <= port <= 65535:
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raise ValueError("ANI_CLI_WEB_PORT must be between 1 and 65535")
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return port
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