File size: 11,386 Bytes
9af29a6 d258bfe 9af29a6 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 | """Armiger Torznab Filtering Proxy & Pre-Grab Admission Gate for Prowlarr, Bitmagnet, and the *Arr Stack.
Sits transparently between upstream Torznab indexers (`Prowlarr`, `Bitmagnet`, `DH-Waypoint`, `Jackett`)
and downstream Torznab media managers (`Sonarr`, `Radarr`, `Lidarr`, `Readarr`).
Every Torznab XML `<item>` returned by an upstream search is evaluated in milliseconds by
`ArmigerUltraPipeline.classify_batch` before `Sonarr` or `Radarr` can grab it:
1. Blocks disguised malware executables (`.mkv.exe`, `.scr`, `.vbs`, `.lnk`, `.ps1`, passworded archives).
2. Blocks fake-seeder malware honeypots (`SwarmSurvivalNet` `is_honeypot_trap == True`).
3. Blocks dead swarms (`viability_tier == "dead"` when `ARMIGER_REJECT_DEAD_SWARMS=true`).
4. Blocks unrequested foreign-language audio traps (`AudioLanguageGuard` cross-head check when
`ARMIGER_REQUIRE_ENGLISH_AUDIO=true`, with optional anime/subtitle allowance via `ARMIGER_ALLOW_ENGLISH_SUBS=true`).
5. Enriches surviving `<item>` nodes with `<torznab:attr name="armiger_category" .../>` and
`<torznab:attr name="armiger_viability" .../>` attributes.
"""
from __future__ import annotations
from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
import json
import os
from pathlib import Path
import sys
from typing import Any, Dict, List, Optional, Tuple
import urllib.parse
import urllib.request
import xml.etree.ElementTree as ET
ROOT_DIR = Path(__file__).resolve().parents[2]
if str(ROOT_DIR) not in sys.path:
sys.path.insert(0, str(ROOT_DIR))
from armiger_dht_rsi import DHTRSIMode
from armiger_ultra_pipeline import ArmigerUltraPipeline, ArmigerUltraPrediction
TORZNAB_NS = "http://torznab.com/schemas/2015/feed"
ET.register_namespace("torznab", TORZNAB_NS)
class ArmigerTorznabFilter:
"""Filters and enriches Torznab RSS/XML feeds using ArmigerUltraPipeline."""
def __init__(
self,
pipeline: ArmigerUltraPipeline,
*,
require_english_audio: bool = False,
allow_english_subs: bool = True,
reject_dead_swarms: bool = True,
allowed_categories: Optional[List[str]] = None,
use_zero_cue_catalog: bool = True,
) -> None:
self.pipeline = pipeline
self.require_english_audio = require_english_audio
self.allow_english_subs = allow_english_subs
self.reject_dead_swarms = reject_dead_swarms
self.allowed_categories = set(allowed_categories) if allowed_categories else None
self.use_zero_cue_catalog = use_zero_cue_catalog
@staticmethod
def _extract_item_row(item_elem: ET.Element) -> Dict[str, Any]:
title = (item_elem.findtext("title") or "").strip()
size_text = item_elem.findtext("size") or "0"
try:
size_val = int(size_text)
except ValueError:
size_val = 0
attrs: Dict[str, str] = {}
for attr in item_elem.findall(f"{{{TORZNAB_NS}}}attr"):
name = (attr.attrib.get("name") or "").lower().strip()
val = attr.attrib.get("value") or ""
if name:
attrs[name] = val
seeders = int(attrs.get("seeders", "0") or 0)
peers = int(attrs.get("peers", "0") or 0)
leechers = max(peers - seeders, int(attrs.get("leechers", "0") or 0))
grabs = int(attrs["grabs"]) if "grabs" in attrs and attrs["grabs"].strip() else None
infohash = attrs.get("infohash") or ""
files_attr = attrs.get("files") or ""
if files_attr:
files = [{"path": p.strip(), "size": size_val} for p in files_attr.split(";") if p.strip()]
else:
tail = title.rsplit(".", 1)[-1].lower() if "." in title else ""
known_exts = {"mkv", "mp4", "avi", "flac", "mp3", "m4b", "epub", "pdf", "cbz", "cbr", "iso", "exe", "scr", "vbs", "bat", "cmd", "lnk", "ps1", "msi"}
if tail in known_exts:
files = [{"path": title, "size": size_val}]
else:
low = title.lower()
if any(k in low for k in ("flac", "24bit", "lossless")):
synth_ext = ".flac"
elif any(k in low for k in ("m4b", "audiobook", "unabridged")):
synth_ext = ".m4b"
elif any(k in low for k in ("epub", "ebook")):
synth_ext = ".epub"
elif any(k in low for k in ("cbz", "cbr")):
synth_ext = ".cbz"
else:
synth_ext = ".mkv"
files = [{"path": f"{title}{synth_ext}", "size": size_val}]
return {
"infohash": infohash,
"name": title,
"size": size_val,
"files": files,
"swarm": {
"tracker_known": bool(seeders > 0 or leechers > 0 or "seeders" in attrs),
"tracker_seeders": seeders,
"tracker_leechers": leechers,
"tracker_completed": grabs,
},
}
def should_admit(self, pred: ArmigerUltraPrediction) -> Tuple[bool, str]:
"""Evaluate whether a Torznab release should be admitted to Sonarr/Radarr/Lidarr/Readarr."""
if not pred.csam_safety["is_safe"]:
return False, str(pred.csam_safety.get("reason") or "csam_or_malware_blocked")
if pred.honeypot_trap["is_honeypot_trap"]:
return False, "honeypot_trap_blocked"
if pred.junk == "junk" or not pred.mondrian_gates["passed_all"]:
return False, str(pred.mondrian_gates.get("safety_gate_reason") or "mondrian_gate_blocked")
if self.reject_dead_swarms and pred.swarm_viability["viability_tier"] == "dead":
return False, "dead_swarm_blocked"
if self.allowed_categories and pred.category not in self.allowed_categories:
return False, f"category_mismatch:{pred.category}"
if self.require_english_audio and pred.lang == "non_english":
has_subs = pred.english_subs == "has_eng_subs"
if not (self.allow_english_subs and has_subs):
return False, "non_english_audio_blocked"
return True, "admitted"
def filter_torznab_xml(self, xml_bytes: bytes) -> Tuple[bytes, Dict[str, Any]]:
"""Parse upstream Torznab XML, remove blocked `<item>` nodes, and enrich surviving items."""
root = ET.fromstring(xml_bytes)
channel = root.find("channel")
if channel is None:
return xml_bytes, {"total": 0, "admitted": 0, "blocked": 0, "blocked_reasons": {}}
items = channel.findall("item")
if not items:
return xml_bytes, {"total": 0, "admitted": 0, "blocked": 0, "blocked_reasons": {}}
rows = [self._extract_item_row(it) for it in items]
predictions = self.pipeline.classify_batch(
rows,
use_zero_cue_catalog=self.use_zero_cue_catalog,
)
admitted_count = 0
blocked_count = 0
blocked_reasons: Dict[str, int] = {}
for item_elem, pred in zip(items, predictions):
admit, reason = self.should_admit(pred)
if not admit:
channel.remove(item_elem)
blocked_count += 1
blocked_reasons[reason] = blocked_reasons.get(reason, 0) + 1
continue
admitted_count += 1
for attr_name, attr_val in (
("armiger_category", pred.category),
("armiger_lang", pred.lang),
("armiger_viability", str(pred.swarm_viability["viability_tier"])),
("armiger_survival_prob", f"{pred.swarm_viability['survival_net_prob']:.4f}"),
):
attr_el = ET.SubElement(item_elem, f"{{{TORZNAB_NS}}}attr")
attr_el.set("name", attr_name)
attr_el.set("value", attr_val)
filtered_bytes = ET.tostring(root, encoding="utf-8", xml_declaration=True)
stats = {
"total": len(items),
"admitted": admitted_count,
"blocked": blocked_count,
"blocked_reasons": blocked_reasons,
}
return filtered_bytes, stats
def create_proxy_server(host: str = "localhost", port: int = 8097) -> ThreadingHTTPServer:
model_dir = os.environ.get("ARMIGER_MODEL_DIR", str(ROOT_DIR))
variant = os.environ.get("ARMIGER_VARIANT", "int8")
upstream_url = os.environ.get("UPSTREAM_TORZNAB_URL", "http://dh-waypoint:3333/torznab").rstrip("/")
pipeline = ArmigerUltraPipeline.from_directory(
model_dir,
variant=variant,
rsi_mode=DHTRSIMode(os.environ.get("ARMIGER_DHT_RSI_MODE", "pull_only")),
preload_catalog=os.environ.get("ARMIGER_USE_ZERO_CUE_CATALOG", "true").lower() == "true",
)
torznab_filter = ArmigerTorznabFilter(
pipeline,
require_english_audio=os.environ.get("ARMIGER_REQUIRE_ENGLISH_AUDIO", "false").lower() == "true",
allow_english_subs=os.environ.get("ARMIGER_ALLOW_ENGLISH_SUBS", "true").lower() == "true",
reject_dead_swarms=os.environ.get("ARMIGER_REJECT_DEAD_SWARMS", "true").lower() == "true",
)
class ProxyHandler(BaseHTTPRequestHandler):
def do_GET(self) -> None:
if self.path == "/healthz":
body = json.dumps({"status": "ok", "service": "armiger-torznab-proxy", "variant": variant}).encode("utf-8")
self.send_response(200)
self.send_header("Content-Type", "application/json")
self.send_header("Content-Length", str(len(body)))
self.end_headers()
self.wfile.write(body)
return
parsed = urllib.parse.urlsplit(self.path)
params = urllib.parse.parse_qs(parsed.query)
t_param = (params.get("t") or [""])[0].lower()
target = f"{upstream_url}{parsed.path}"
if parsed.query:
target = f"{target}?{parsed.query}"
req = urllib.request.Request(target, method="GET")
with urllib.request.urlopen(req, timeout=15.0) as resp:
raw_xml = resp.read()
content_type = resp.headers.get("Content-Type", "application/rss+xml; charset=utf-8")
if t_param in ("caps", ""):
out_bytes = raw_xml
stats = {"total": 0, "admitted": 0, "blocked": 0}
else:
out_bytes, stats = torznab_filter.filter_torznab_xml(raw_xml)
self.send_response(200)
self.send_header("Content-Type", content_type)
self.send_header("X-Armiger-Total", str(stats["total"]))
self.send_header("X-Armiger-Admitted", str(stats["admitted"]))
self.send_header("X-Armiger-Blocked", str(stats["blocked"]))
self.send_header("Content-Length", str(len(out_bytes)))
self.end_headers()
self.wfile.write(out_bytes)
def log_message(self, fmt: str, *args: Any) -> None:
return
return ThreadingHTTPServer((host, port), ProxyHandler)
if __name__ == "__main__":
listen_host = os.environ.get("ARMIGER_PROXY_HOST", "localhost")
listen_port = int(os.environ.get("ARMIGER_PROXY_PORT", "8097"))
srv = create_proxy_server(listen_host, listen_port)
print(f"Armiger Torznab proxy listening on {listen_host}:{listen_port}")
srv.serve_forever()
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