Update urllib3 to 2.7.0 (#986)

Fixes a security issue relying on plain email fields for OIDC user
linking. Requires verified email instead.

.github/dependabot.yml

@@ -1,10 +1,17 @@
 version: 2
 updates:
   # Python dependencies
+  # Dependabot supports uv version updates, but GitHub currently lists uv
+  # security updates as "Not applicable"; daily checks keep uv.lock moving
+  # while repo-level Dependabot alerts/security updates cover supported ecosystems.
   - package-ecosystem: "uv"
     directory: "/"
     schedule:
-      interval: "weekly"
+      interval: "daily"
+      time: "05:00"
+      timezone: "Europe/London"
+    cooldown:
+      default-days: 3
     open-pull-requests-limit: 10
     groups:
       python-deps:
@@ -16,20 +23,25 @@ updates:
     directory: "/src/frontend"
     schedule:
       interval: "weekly"
+    cooldown:
+      default-days: 3
     open-pull-requests-limit: 10
     groups:
       npm-deps:
         patterns: ["*"]
         update-types: ["minor", "patch"]
 
-  # Dockerfile base images
+  # Dockerfile base image digests. When a tag stays the same, Dependabot titles
+  # can only show digest prefixes, so keep the group name explicit.
   - package-ecosystem: "docker"
     directory: "/"
     schedule:
       interval: "weekly"
+    cooldown:
+      default-days: 3
     open-pull-requests-limit: 5
     groups:
-      docker-images:
+      docker-base-image-digests:
         patterns: ["*"]
     ignore:
       # Node.js: block major-version bumps so dependabot never proposes
@@ -43,6 +55,8 @@ updates:
     directory: "/"
     schedule:
       interval: "weekly"
+    cooldown:
+      default-days: 3
     open-pull-requests-limit: 5
     groups:
       gh-actions:

.github/workflows/codeql.yml

@@ -25,14 +25,14 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@95e58e9a2cdfd71adc6e0353d5c52f41a045d225 # v3
+        uses: github/codeql-action/init@68bde559dea0fdcac2102bfdf6230c5f70eb485e # v3
         with:
           languages: ${{ matrix.language }}
 
       - name: Autobuild
-        uses: github/codeql-action/autobuild@95e58e9a2cdfd71adc6e0353d5c52f41a045d225 # v3
+        uses: github/codeql-action/autobuild@68bde559dea0fdcac2102bfdf6230c5f70eb485e # v3
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@95e58e9a2cdfd71adc6e0353d5c52f41a045d225 # v3
+        uses: github/codeql-action/analyze@68bde559dea0fdcac2102bfdf6230c5f70eb485e # v3
         with:
           category: "/language:${{ matrix.language }}"

Dockerfile

@@ -4,7 +4,7 @@ ARG BUILDPLATFORM
 ARG BUILDARCH
 
 # Frontend build stage.
-FROM --platform=$BUILDPLATFORM node:24-alpine AS frontend-builder
+FROM --platform=$BUILDPLATFORM node:24-alpine@sha256:d1b3b4da11eefd5941e7f0b9cf17783fc99d9c6fc34884a665f40a06dbdfc94f AS frontend-builder
 
 # Helpful debug output to see what platforms BuildKit thinks it's using
 RUN echo "BUILDPLATFORM=$BUILDPLATFORM BUILDARCH=$BUILDARCH TARGETPLATFORM=$TARGETPLATFORM TARGETARCH=$TARGETARCH"
@@ -25,9 +25,9 @@ COPY src/frontend/ ./
 RUN npm run build
 
 # Use python-slim as the base image
-FROM python:3.14-slim AS base
+FROM python:3.14-slim@sha256:1697e8e8d39bf168e177ac6b5fdab6df86d81cfc24dae17dfb96cfc3ef76b4dd AS base
 
-COPY --from=ghcr.io/astral-sh/uv:0.11.3 /uv /uvx /bin/
+COPY --from=ghcr.io/astral-sh/uv:0.11.3@sha256:90bbb3c16635e9627f49eec6539f956d70746c409209041800a0280b93152823 /uv /uvx /bin/
 
 # Add build argument for version
 ARG BUILD_VERSION
@@ -103,6 +103,15 @@ COPY pyproject.toml uv.lock ./
 RUN --mount=type=cache,target=/root/.cache/uv \
     uv sync --locked --no-default-groups
 
+# Runtime dependencies are installed into /app/.venv during the build. Remove the
+# base image's system pip so stale installer CVEs do not ship in the final image.
+RUN rm -rf \
+        /usr/local/bin/pip \
+        /usr/local/bin/pip3 \
+        /usr/local/bin/pip3.* \
+        /usr/local/lib/python*/site-packages/pip \
+        /usr/local/lib/python*/site-packages/pip-*.dist-info
+
 # Copy application code *after* dependencies are installed
 COPY . .
 
@@ -164,6 +173,9 @@ RUN apt-get update && \
 RUN --mount=type=cache,target=/root/.cache/uv \
     uv sync --locked --no-default-groups --extra browser
 
+# uv is only needed while building the image.
+RUN rm -f /usr/bin/uv /usr/bin/uvx
+
 # Keep SeleniumBase's bundled driver cache writable for the fixed non-root user.
 RUN SELENIUMBASE_DRIVERS_DIR=$(/app/.venv/bin/python -c "import pathlib, seleniumbase; print(pathlib.Path(seleniumbase.__file__).resolve().parent / 'drivers')") && \
     chown -R 1000:1000 "${SELENIUMBASE_DRIVERS_DIR}" && \
@@ -180,4 +192,7 @@ FROM base AS shelfmark-lite
 
 ENV USING_EXTERNAL_BYPASSER=true
 
+# uv is only needed while building the image.
+RUN rm -f /usr/bin/uv /usr/bin/uvx
+
 CMD ["/app/entrypoint.sh"]

docs/environment-variables.md

@@ -31,7 +31,7 @@ This document lists all configuration options that can be set via environment va
 
 ## Bootstrap Configuration
 
-These environment variables are used at startup before the settings system loads. They typically configure paths and server settings.
+These environment variables are used at startup before the settings system loads. They typically configure paths, server settings, and authentication startup behavior.
 
 | Variable | Description | Type | Default |
 |----------|-------------|------|---------|
@@ -43,6 +43,9 @@ These environment variables are used at startup before the settings system loads
 | `FLASK_PORT` | Port number for the Flask web server. | number | `8084` |
 | `SESSION_COOKIE_SECURE` | Enable secure cookies (requires HTTPS). | boolean | `false` |
 | `CWA_DB_PATH` | Path to the Calibre-Web database for authentication integration. | string (path) | `/auth/app.db` |
+| `HIDE_LOCAL_AUTH` | Hide the username/password login form when OIDC is active. | boolean | `false` |
+| `DISABLE_LOCAL_AUTH` | Disable username/password login and remove the local-admin prerequisite for OIDC. Implies HIDE_LOCAL_AUTH; with AUTH_METHOD=builtin, everyone is locked out until auth env vars are changed. | boolean | `false` |
+| `OIDC_AUTO_REDIRECT` | Automatically redirect to the OIDC provider instead of showing the login page. | boolean | `false` |
 | `DOCKERMODE` | Indicates the application is running inside a Docker container. | boolean | `false` |
 | `ONBOARDING` | Show the onboarding wizard on first run. Set to false to skip (useful for ephemeral storage). | boolean | `true` |
 
@@ -105,6 +108,27 @@ Path to the Calibre-Web database for authentication integration.
 - **Type:** string (path)
 - **Default:** `/auth/app.db`
 
+#### `HIDE_LOCAL_AUTH`
+
+Hide the username/password login form when OIDC is active.
+
+- **Type:** boolean
+- **Default:** `false`
+
+#### `DISABLE_LOCAL_AUTH`
+
+Disable username/password login and remove the local-admin prerequisite for OIDC. Implies HIDE_LOCAL_AUTH; with AUTH_METHOD=builtin, everyone is locked out until auth env vars are changed.
+
+- **Type:** boolean
+- **Default:** `false`
+
+#### `OIDC_AUTO_REDIRECT`
+
+Automatically redirect to the OIDC provider instead of showing the login page.
+
+- **Type:** boolean
+- **Default:** `false`
+
 #### `DOCKERMODE`
 
 Indicates the application is running inside a Docker container.
@@ -1073,6 +1097,7 @@ How long to cache individual book details. Default: 600 (10 minutes). Max: 60480
 | `PROWLARR_API_KEY` | Found in Prowlarr: Settings > General > API Key | string (secret) | _none_ |
 | `PROWLARR_INDEXERS` | Select which indexers to search. 📚 = has book categories. Leave empty to search all. | string (comma-separated) | _empty list_ |
 | `PROWLARR_AUTO_EXPAND` | Automatically retry search without category filtering if no results are found | boolean | `false` |
+| `PROWLARR_USE_SEED_PREFERENCES` | Apply per-indexer seed time and ratio preferences from Prowlarr when sending torrents to the download client | boolean | `false` |
 
 <details>
 <summary>Detailed descriptions</summary>
@@ -1124,6 +1149,15 @@ Automatically retry search without category filtering if no results are found
 - **Type:** boolean
 - **Default:** `false`
 
+#### `PROWLARR_USE_SEED_PREFERENCES`
+
+**Use Prowlarr seed preferences**
+
+Apply per-indexer seed time and ratio preferences from Prowlarr when sending torrents to the download client
+
+- **Type:** boolean
+- **Default:** `false`
+
 </details>
 
 ## Newznab

docs/oidc.md

@@ -39,9 +39,10 @@ These optional environment variables control login page behavior when OIDC is en
 | Variable | Description | Default |
 |----------|-------------|---------|
 | `HIDE_LOCAL_AUTH` | Hide the username/password login option, so only the OIDC button is shown | `false` |
+| `DISABLE_LOCAL_AUTH` | Disable username/password login and remove the local-admin prerequisite for OIDC. Implies `HIDE_LOCAL_AUTH`; with `AUTH_METHOD=builtin`, everyone is locked out until auth env vars are changed. | `false` |
 | `OIDC_AUTO_REDIRECT` | Automatically redirect to the OIDC provider instead of showing the login page | `false` |
 
-If both are enabled, users are redirected straight to the OIDC provider. On failure they return to the login page with an error message but no password fallback.
+If `DISABLE_LOCAL_AUTH` and `OIDC_AUTO_REDIRECT` are both enabled, users are redirected straight to the OIDC provider. On failure they return to the login page with an error message but no password fallback.
 
 ## Troubleshooting
 

entrypoint.sh

@@ -322,6 +322,27 @@ require_writable_dir() {
     fi
 }
 
+fail_unwritable_config_dir() {
+    local folder="$1"
+    local owner
+
+    owner=$(stat -c '%u:%g' "$folder" 2>/dev/null || echo "unknown")
+
+    echo ""
+    echo "========================================================"
+    echo "ERROR: Config directory is not writable!"
+    echo ""
+    echo "Config directory: $folder"
+    echo "Current owner: $owner"
+    echo "Configured runtime identity: ${RUN_UID}:${RUN_GID}"
+    echo ""
+    echo "To fix this permanently, run on your HOST machine:"
+    echo "  chown -R $RUN_UID:$RUN_GID /path/to/config"
+    echo "========================================================"
+    echo ""
+    exit 1
+}
+
 resolve_runtime_home() {
     local runtime_home
 
@@ -417,37 +438,15 @@ else
     # Config is Shelfmark-owned state, so it keeps the thorough repair path.
     make_writable "${CONFIG_DIR:-/config}" tree
 
-    # Fallback to root if config dir is still not writable (common on NAS/Unraid after upgrade from v0.4.0)
+    # Refuse to continue if the config directory is still not writable after repair.
     CONFIG_PATH=${CONFIG_DIR:-/config}
     set +e
     test_write "$CONFIG_PATH" >/dev/null 2>&1
     config_ok=$?
     set -e
 
-    if [ $config_ok -ne 0 ] && [ "$RUN_UID" != "0" ]; then
-        config_owner=$(stat -c '%u' "$CONFIG_PATH" 2>/dev/null || echo "unknown")
-        if [ "$config_owner" = "0" ]; then
-            echo ""
-            echo "========================================================"
-            echo "WARNING: Permission issue detected!"
-            echo ""
-            echo "Config directory is owned by root but PUID=$RUN_UID."
-            echo "This typically happens after upgrading from v0.4.0 where"
-            echo "PUID/PGID settings were not respected."
-            echo ""
-            echo "Falling back to running as root to prevent data loss."
-            echo ""
-            echo "To fix this permanently, run on your HOST machine:"
-            echo "  chown -R $RUN_UID:$RUN_GID /path/to/config"
-            echo ""
-            echo "Then restart the container."
-            echo "========================================================"
-            echo ""
-            RUN_UID=0
-            RUN_GID=0
-            USERNAME=root
-            TARGET_USER_SPEC="0:0"
-        fi
+    if [ $config_ok -ne 0 ]; then
+        fail_unwritable_config_dir "$CONFIG_PATH"
     fi
 fi
 

pyproject.toml

@@ -21,15 +21,15 @@ dependencies = [
     "rarfile",
     "qbittorrent-api",
     "transmission-rpc",
-    "authlib>=1.7.0,<1.8",
-    "apprise>=1.9.0",
+    "authlib>=1.7.2,<1.8",
+    "apprise>=1.10.0",
 ]
 
 [project.optional-dependencies]
 browser = [
     "pyvirtualdisplay",
     "pyautogui",
-    "seleniumbase==4.48.2",
+    "seleniumbase==4.48.4",
     "python-xlib",
 ]
 
@@ -40,7 +40,7 @@ dev = [
     "pytest",
     "pytest-cov",
     "pytest-xdist>=3.8.0",
-    "ruff==0.15.11",
+    "ruff==0.15.12",
     "vulture>=2.14",
 ]
 

scripts/generate_env_docs.py

@@ -172,6 +172,24 @@ def _generate_bootstrap_env_docs() -> list[str]:
             "type": "string (path)",
             "default": "/auth/app.db",
         },
+        {
+            "name": "HIDE_LOCAL_AUTH",
+            "description": "Hide the username/password login form when OIDC is active.",
+            "type": "boolean",
+            "default": "false",
+        },
+        {
+            "name": "DISABLE_LOCAL_AUTH",
+            "description": "Disable username/password login and remove the local-admin prerequisite for OIDC. Implies HIDE_LOCAL_AUTH; with AUTH_METHOD=builtin, everyone is locked out until auth env vars are changed.",
+            "type": "boolean",
+            "default": "false",
+        },
+        {
+            "name": "OIDC_AUTO_REDIRECT",
+            "description": "Automatically redirect to the OIDC provider instead of showing the login page.",
+            "type": "boolean",
+            "default": "false",
+        },
         {
             "name": "DOCKERMODE",
             "description": "Indicates the application is running inside a Docker container.",
@@ -189,7 +207,7 @@ def _generate_bootstrap_env_docs() -> list[str]:
     lines = [
         "## Bootstrap Configuration",
         "",
-        "These environment variables are used at startup before the settings system loads. They typically configure paths and server settings.",
+        "These environment variables are used at startup before the settings system loads. They typically configure paths, server settings, and authentication startup behavior.",
         "",
         "| Variable | Description | Type | Default |",
         "|----------|-------------|------|---------|",

shelfmark/config/env.py

@@ -121,6 +121,7 @@ SESSION_COOKIE_SECURE_ENV = os.getenv("SESSION_COOKIE_SECURE", "false")
 SESSION_COOKIE_NAME = "shelfmark_session"
 CWA_DB_PATH = _resolve_cwa_db_path()
 HIDE_LOCAL_AUTH = string_to_bool(os.getenv("HIDE_LOCAL_AUTH", "false"))
+DISABLE_LOCAL_AUTH = string_to_bool(os.getenv("DISABLE_LOCAL_AUTH", "false"))
 OIDC_AUTO_REDIRECT = string_to_bool(os.getenv("OIDC_AUTO_REDIRECT", "false"))
 
 

shelfmark/config/security.py

@@ -76,7 +76,7 @@ def _test_oidc_connection(current_values: dict[str, Any] | None = None) -> dict[
 @register_settings("security", "Security", icon="shield", order=5)
 def security_settings() -> list[SettingsField]:
     """Security and authentication settings."""
-    from shelfmark.config.env import CWA_DB_PATH
+    from shelfmark.config.env import CWA_DB_PATH, DISABLE_LOCAL_AUTH
 
     cwa_db_available = CWA_DB_PATH is not None and CWA_DB_PATH.exists()
 
@@ -108,11 +108,17 @@ def security_settings() -> list[SettingsField]:
             ),
             show_when=_auth_condition("builtin"),
         ),
-        CustomComponentField(
-            key="oidc_admin_requirement",
-            component="oidc_admin_hint",
-            label="A local admin account is required before OIDC can be enabled.",
-            show_when=_auth_condition("oidc"),
+        *(
+            []
+            if DISABLE_LOCAL_AUTH
+            else [
+                CustomComponentField(
+                    key="oidc_admin_requirement",
+                    component="oidc_admin_hint",
+                    label="A local admin account is required before OIDC can be enabled.",
+                    show_when=_auth_condition("oidc"),
+                ),
+            ]
         ),
         *(
             []

shelfmark/config/security_handlers.py

@@ -4,6 +4,7 @@ import os
 from pathlib import Path
 from typing import TYPE_CHECKING, Any
 
+from shelfmark.config.env import DISABLE_LOCAL_AUTH
 from shelfmark.core.user_db import UserDB
 from shelfmark.core.utils import normalize_http_url
 from shelfmark.download.network import get_ssl_verify
@@ -78,7 +79,7 @@ def on_save_security(
     auth_method = str(effective_values.get("AUTH_METHOD", "") or "").strip().lower()
 
     if auth_method == "oidc":
-        if not _has_local_password_admin():
+        if not DISABLE_LOCAL_AUTH and not _has_local_password_admin():
             return {"error": True, "message": _OIDC_LOCKOUT_MESSAGE, "values": normalized_values}
 
         missing_fields = _get_missing_oidc_required_fields(effective_values)

shelfmark/core/auth_modes.py

@@ -71,14 +71,16 @@ def determine_auth_mode(
     cwa_db_path: object | None,
     *,
     has_local_admin: bool = True,
+    disable_local_auth: bool = False,
 ) -> str:
     """Determine active auth mode from security config and runtime prerequisites."""
     auth_mode = security_config.get("AUTH_METHOD", "none")
+    local_admin_available = has_local_admin or disable_local_auth
 
     if auth_mode == AUTH_SOURCE_CWA and cwa_db_path:
         return AUTH_SOURCE_CWA
 
-    if auth_mode == AUTH_SOURCE_BUILTIN and has_local_admin:
+    if auth_mode == AUTH_SOURCE_BUILTIN and local_admin_available:
         return AUTH_SOURCE_BUILTIN
 
     if auth_mode == AUTH_SOURCE_PROXY and security_config.get("PROXY_AUTH_USER_HEADER"):
@@ -86,7 +88,7 @@ def determine_auth_mode(
 
     if (
         auth_mode == AUTH_SOURCE_OIDC
-        and has_local_admin
+        and local_admin_available
         and security_config.get("OIDC_DISCOVERY_URL")
         and security_config.get("OIDC_CLIENT_ID")
     ):
@@ -102,6 +104,7 @@ def load_active_auth_mode(
 ) -> str:
     """Resolve active auth mode using current security config and runtime prerequisites."""
     try:
+        from shelfmark.config.env import DISABLE_LOCAL_AUTH
         from shelfmark.core.config import config as app_config
 
         security_config = {
@@ -114,6 +117,7 @@ def load_active_auth_mode(
             security_config,
             cwa_db_path,
             has_local_admin=has_local_password_admin(user_db),
+            disable_local_auth=DISABLE_LOCAL_AUTH,
         )
     except ImportError, OSError, RuntimeError, TypeError, ValueError, sqlite3.Error:
         return "none"

shelfmark/core/image_cache.py

@@ -8,7 +8,7 @@ import time
 from http import HTTPStatus
 from io import BytesIO
 from typing import TYPE_CHECKING, Any
-from urllib.parse import urlparse
+from urllib.parse import urljoin, urlparse
 
 import requests
 
@@ -39,6 +39,7 @@ FETCH_HEADERS = {
 
 # Maximum image size to fetch (5 MB)
 MAX_IMAGE_SIZE = 5 * 1024 * 1024
+MAX_REDIRECTS = 5
 
 # Negative cache TTL (for failed fetches) - 1 hour
 NEGATIVE_CACHE_TTL = 3600
@@ -482,29 +483,85 @@ class ImageCacheService:
             }
 
     @staticmethod
-    def _is_safe_url(url: str) -> bool:
-        """Check that a URL is safe to fetch (no SSRF to internal resources)."""
+    def _prepare_safe_url(url: str) -> str | None:
+        """Prepare and validate a URL before fetching it."""
+        if "\\" in url or any(ord(char) < 32 for char in url):
+            return None
+
         try:
-            parsed = urlparse(url)
+            prepared = requests.Request("GET", url).prepare()
+            prepared_url = prepared.url
+            if not isinstance(prepared_url, str):
+                return None
+            parsed = urlparse(prepared_url)
             hostname = parsed.hostname
-        except ValueError:
-            return False
+        except requests.exceptions.RequestException, ValueError:
+            return None
+
+        if not prepared_url:
+            return None
+
+        if "\\" in prepared_url or any(ord(char) < 32 for char in prepared_url):
+            return None
+
+        netloc_lower = parsed.netloc.lower()
+        if "%2f" in netloc_lower or "%5c" in netloc_lower:
+            return None
 
         if parsed.scheme not in ("http", "https"):
-            return False
+            return None
         if not hostname:
-            return False
+            return None
 
         try:
             resolved = socket.getaddrinfo(hostname, None)
             for _, _, _, _, sockaddr in resolved:
                 ip = ipaddress.ip_address(sockaddr[0])
                 if ip.is_private or ip.is_loopback or ip.is_link_local or ip.is_reserved:
-                    return False
+                    return None
         except socket.gaierror, ValueError:
-            return False
+            return None
 
-        return True
+        return prepared_url
+
+    @staticmethod
+    def _is_safe_url(url: str) -> bool:
+        """Check that a URL is safe to fetch (no SSRF to internal resources)."""
+        return ImageCacheService._prepare_safe_url(url) is not None
+
+    def _fetch_safe_response(self, url: str) -> requests.Response | None:
+        """Fetch a URL after validating the initial URL and each redirect."""
+        current_url = self._prepare_safe_url(url)
+        if not current_url:
+            logger.warning("Blocked request to disallowed URL: %s", url)
+            return None
+
+        for _ in range(MAX_REDIRECTS + 1):
+            response = requests.get(
+                current_url,
+                timeout=(5, 10),
+                headers=FETCH_HEADERS,
+                stream=True,
+                verify=get_ssl_verify(current_url),
+                allow_redirects=False,
+            )
+
+            if not response.is_redirect:
+                return response
+
+            location = response.headers.get("location")
+            response.close()
+            if not location:
+                return None
+
+            redirect_url = urljoin(current_url, location)
+            next_url = self._prepare_safe_url(redirect_url)
+            if not next_url:
+                logger.warning("Blocked redirect to disallowed URL: %s", redirect_url)
+                return None
+            current_url = next_url
+
+        return None
 
     def fetch_and_cache(self, cache_id: str, url: str) -> tuple[bytes, str] | None:
         """Fetch an image from URL and cache it.
@@ -519,17 +576,9 @@ class ImageCacheService:
         """
         cached_data: tuple[bytes, str] | None = None
         try:
-            if not self._is_safe_url(url):
-                logger.warning("Blocked request to disallowed URL: %s", url)
+            response = self._fetch_safe_response(url)
+            if response is None:
                 return None
-
-            response = requests.get(
-                url,
-                timeout=(5, 10),
-                headers=FETCH_HEADERS,
-                stream=True,
-                verify=get_ssl_verify(url),
-            )
             response.raise_for_status()
 
             # Validate content type

shelfmark/core/oidc_routes.py

@@ -73,6 +73,16 @@ def _has_username_or_email(claims: dict[str, Any]) -> bool:
     return False
 
 
+def _is_email_verified(claims: dict[str, Any]) -> bool:
+    """Return True when claims explicitly mark the email address as verified."""
+    email_verified = claims.get("email_verified")
+    if isinstance(email_verified, bool):
+        return email_verified
+    if isinstance(email_verified, str):
+        return email_verified.strip().lower() == "true"
+    return False
+
+
 def _login_error_url(message: str) -> str:
     """Build a login URL (with script_root) that includes an OIDC error message."""
     script_root = request.script_root.rstrip("/")
@@ -295,7 +305,7 @@ def register_oidc_routes(app: Flask, user_db: UserDB) -> None:
             if admin_group and use_admin_group:
                 is_admin = admin_group in groups
 
-            allow_email_link = bool(user_info.get("email"))
+            allow_email_link = bool(user_info.get("email")) and _is_email_verified(claims)
             user = provision_oidc_user(
                 user_db,
                 user_info,

shelfmark/core/path_mappings.py

@@ -10,7 +10,7 @@ A mapping rewrites a remote path prefix into a local path prefix.
 from __future__ import annotations
 
 from dataclasses import dataclass
-from pathlib import Path
+from pathlib import Path, PureWindowsPath
 from typing import TYPE_CHECKING
 
 if TYPE_CHECKING:
@@ -50,6 +50,42 @@ def _normalize_host(host: str) -> str:
     return str(host or "").strip().lower()
 
 
+def _is_relative_to(path: Path, prefix: Path) -> bool:
+    try:
+        path.relative_to(prefix)
+    except ValueError:
+        return False
+
+    return True
+
+
+def _join_contained_path(local_prefix: str, remainder: str) -> Path | None:
+    local_path = Path(local_prefix)
+
+    if remainder:
+        remainder_path = Path(remainder)
+        windows_remainder_path = PureWindowsPath(remainder)
+
+        if (
+            remainder_path.is_absolute()
+            or windows_remainder_path.is_absolute()
+            or ".." in remainder_path.parts
+            or ".." in windows_remainder_path.parts
+        ):
+            return None
+
+        remapped = local_path / remainder_path
+    else:
+        remapped = local_path
+
+    resolved_local_path = local_path.resolve(strict=False)
+    resolved_remapped = remapped.resolve(strict=False)
+    if not _is_relative_to(resolved_remapped, resolved_local_path):
+        return None
+
+    return remapped
+
+
 def parse_remote_path_mappings(value: object) -> list[RemotePathMapping]:
     """Parse configured remote-path mapping rows into normalized mappings."""
     if not value or not isinstance(value, list):
@@ -81,8 +117,12 @@ def remap_remote_to_local_with_match(
     mappings: Iterable[RemotePathMapping],
     host: str,
     remote_path: str | Path,
-) -> tuple[Path, bool]:
-    """Remap a remote path and report whether a configured mapping matched."""
+) -> tuple[Path | None, bool]:
+    """Remap a remote path and report whether a configured mapping matched.
+
+    Returns ``(None, True)`` when a mapping prefix matched but the remainder was
+    unsafe to join under the local prefix.
+    """
     host_normalized = _normalize_host(host)
     remote_normalized = _normalize_prefix(str(remote_path))
 
@@ -119,7 +159,10 @@ def remap_remote_to_local_with_match(
 
             remainder = remainder.removeprefix("/")
 
-            remapped = Path(local_prefix) / remainder if remainder else Path(local_prefix)
+            remapped = _join_contained_path(local_prefix, remainder)
+            if remapped is None:
+                return None, True
+
             return remapped, True
 
     return Path(remote_normalized), False
@@ -134,6 +177,8 @@ def remap_remote_to_local(
         host=host,
         remote_path=remote_path,
     )
+    if remapped is None:
+        return Path(str(remote_path))
     return remapped
 
 

shelfmark/core/request_routes.py

@@ -220,6 +220,26 @@ def _normalize_release_result_request_payload(
     return "release", normalized_release_data
 
 
+def _validate_release_source_matches_policy_context(
+    *,
+    source: str,
+    release_data: object,
+) -> None:
+    if not isinstance(release_data, dict):
+        return
+
+    release_source = normalize_source(release_data.get("source"))
+    if release_source in {"", "*"} or release_source == source:
+        return
+
+    msg = "Policy context source must match release_data.source"
+    raise RequestServiceError(
+        msg,
+        status_code=400,
+        code="policy_source_mismatch",
+    )
+
+
 def _resolve_request_title(request_row: dict[str, Any]) -> str:
     return _resolve_title_from_book_data(request_row.get("book_data"))
 
@@ -317,6 +337,10 @@ def _prepare_request_create_arguments(
     content_type = normalize_content_type(
         context.get("content_type") or data.get("content_type") or book_data.get("content_type")
     )
+    _validate_release_source_matches_policy_context(
+        source=source,
+        release_data=release_data,
+    )
     request_level, release_data = _normalize_release_result_request_payload(
         source=source,
         request_level=request_level,
@@ -324,6 +348,10 @@ def _prepare_request_create_arguments(
         release_data=release_data,
         content_type=content_type,
     )
+    _validate_release_source_matches_policy_context(
+        source=source,
+        release_data=release_data,
+    )
 
     global_settings, user_settings, effective, requests_enabled = _resolve_effective_policy(
         user_db,

shelfmark/download/archive.py

@@ -1,18 +1,21 @@
 """Archive extraction utilities for downloaded book archives."""
 
+import shutil
+import tempfile
 import zipfile
 from pathlib import Path
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, cast
 
 from shelfmark.core.logger import setup_logger
 from shelfmark.core.utils import is_audiobook as check_audiobook
-from shelfmark.download.fs import atomic_write
+from shelfmark.download.fs import atomic_move
 from shelfmark.download.postprocess.policy import (
     get_supported_audiobook_formats,
     get_supported_formats,
 )
 
 logger = setup_logger(__name__)
+_ARCHIVE_COPY_CHUNK_SIZE = 1024 * 1024
 
 if TYPE_CHECKING:
     import rarfile
@@ -208,9 +211,25 @@ def _extract_files_from_archive(archive: ArchiveType, output_dir: Path) -> list[
             logger.warning("Path traversal attempt blocked: %r", info.filename)
             continue
 
-        with archive.open(info) as src:
-            data = src.read()
-        final_path = atomic_write(target_path, data)
+        temp_path: Path | None = None
+        try:
+            with (
+                archive.open(info) as src,
+                tempfile.NamedTemporaryFile(
+                    dir=output_dir,
+                    prefix=".shelfmark-extract-",
+                    suffix=".tmp",
+                    delete=False,
+                ) as temp_file,
+            ):
+                temp_path = Path(temp_file.name)
+                shutil.copyfileobj(src, temp_file, length=_ARCHIVE_COPY_CHUNK_SIZE)
+
+            final_path = atomic_move(cast("Path", temp_path), target_path)
+        except Exception:
+            if temp_path is not None:
+                temp_path.unlink(missing_ok=True)
+            raise
         extracted_files.append(final_path)
         logger.debug("Extracted: %s", filename)
 

shelfmark/download/clients/base_handler.py

@@ -276,7 +276,18 @@ class ExternalClientHandler(DownloadHandler, ABC):
             remote_path=source_path_obj,
         )
 
-        delete_path = remapped if matched_mapping else source_path_obj
+        if matched_mapping:
+            if remapped is None:
+                logger.warning(
+                    "Refusing to delete download data for %s %s because remote path mapping rejected unsafe path: %s",
+                    client.name,
+                    download_id,
+                    source_path_obj,
+                )
+                return
+            delete_path = remapped
+        else:
+            delete_path = source_path_obj
 
         if str(delete_path) in ("", "/"):
             logger.warning(
@@ -435,6 +446,19 @@ class ExternalClientHandler(DownloadHandler, ABC):
         )
 
         if matched_mapping:
+            if remapped is None:
+                message = (
+                    f"Remote path mapping rejected unsafe path '{source_path_obj}'. "
+                    f"Check Settings > Advanced > Remote Path Mappings."
+                )
+                failure_log = "Remote path mapping rejected unsafe path for %s (%s): %s"
+                failure_args = (client.name, download_id, source_path_obj)
+                if log_details:
+                    logger.error(failure_log, *failure_args)
+                else:
+                    logger.debug(failure_log, *failure_args)
+                return None, message
+
             remapped_exists, remapped_error = _probe_completed_path(remapped)
 
             if log_details:

shelfmark/download/clients/qbittorrent.py

@@ -2,9 +2,10 @@
 
 from __future__ import annotations
 
+import os
 import time
 from http import HTTPStatus
-from pathlib import Path
+from pathlib import Path, PurePosixPath, PureWindowsPath
 from types import SimpleNamespace
 from typing import NoReturn, TypedDict
 
@@ -46,6 +47,13 @@ _HTTP_STATUS_NOT_FOUND = HTTPStatus.NOT_FOUND
 _ONE_WEEK_IN_SECONDS = 604800
 
 
+class _UnsafeQBittorrentPath:
+    pass
+
+
+_UNSAFE_QBITTORRENT_PATH = _UnsafeQBittorrentPath()
+
+
 class _QBittorrentAddKwargs(TypedDict, total=False):
     rename: str
     category: str
@@ -136,6 +144,24 @@ def _is_explicit_add_failure(raw_result: object) -> bool:
     return normalized in {"fail", "fails", "error", "errors"}
 
 
+def _build_qbittorrent_child_path(base_path: object, child_path: object) -> str | None:
+    """Build a qBittorrent-reported child path without allowing escape from base."""
+    if not isinstance(base_path, str) or not base_path:
+        return None
+    if not isinstance(child_path, str) or not child_path:
+        return None
+
+    child = child_path.replace("\\", "/")
+    posix_child = PurePosixPath(child)
+    windows_child = PureWindowsPath(child_path)
+    if posix_child.is_absolute() or windows_child.is_absolute() or windows_child.drive:
+        return None
+    if any(part == ".." for part in posix_child.parts):
+        return None
+
+    return os.path.normpath(str(Path(base_path) / child))
+
+
 @register_client("torrent")
 class QBittorrentClient(DownloadClient):
     """qBittorrent download client."""
@@ -629,16 +655,18 @@ class QBittorrentClient(DownloadClient):
         download_id = getattr(torrent, "hash", "")
         if isinstance(download_id, str) and download_id:
             derived = self._derive_download_path_from_files(download_id)
-            if derived:
+            if derived and not isinstance(derived, _UnsafeQBittorrentPath):
                 return derived
 
         # Legacy fallback: save_path + name (for older clients/emulators)
-        return self._build_path(
+        return _build_qbittorrent_child_path(
             getattr(torrent, "save_path", ""),
             getattr(torrent, "name", ""),
         )
 
-    def _derive_download_path_from_files(self, download_id: str) -> str | None:
+    def _derive_download_path_from_files(
+        self, download_id: str
+    ) -> str | _UnsafeQBittorrentPath | None:
         """Derive completed download path using `/torrents/properties` + `/torrents/files`.
 
         This mirrors how common automation apps derive the path when
@@ -685,9 +713,12 @@ class QBittorrentClient(DownloadClient):
             first_name_norm = first_name.replace("\\", "/")
             top_level = first_name_norm.split("/", 1)[0]
             if not top_level:
-                return None
+                return _UNSAFE_QBITTORRENT_PATH
 
-            return os.path.normpath(str(Path(save_path) / top_level))
+            derived = _build_qbittorrent_child_path(save_path, top_level)
+            if derived is None:
+                return _UNSAFE_QBITTORRENT_PATH
+            return os.path.normpath(derived)
         except _QBITTORRENT_CLIENT_ERRORS as e:
             logger.debug(
                 "qBittorrent could not derive path from files: %s: %s",

shelfmark/download/clients/sabnzbd.py

@@ -33,6 +33,24 @@ _SABNZBD_CLIENT_ERRORS = (
 _SabnzbdRequestParam = str | int | float | bool
 
 
+def _url_origin(value: str) -> tuple[str, str, int] | None:
+    try:
+        parsed = urlparse(value)
+        port = parsed.port
+    except ValueError:
+        return None
+
+    scheme = parsed.scheme.lower()
+    hostname = (parsed.hostname or "").lower()
+    if scheme not in {"http", "https"} or not hostname:
+        return None
+
+    if port is None:
+        port = 443 if scheme == "https" else 80
+
+    return scheme, hostname, port
+
+
 def _parse_eta(eta_str: str) -> int | None:
     """Parse SABnzbd ETA string (format: 'H:MM:SS') to seconds."""
     if not eta_str or eta_str == "0:00:00":
@@ -220,6 +238,18 @@ class SABnzbdClient(DownloadClient):
         response.raise_for_status()
         return response.content
 
+    def _can_prefetch_nzb_url(self, url: str) -> bool:
+        target_origin = _url_origin(url)
+        if target_origin is None:
+            return False
+
+        for key in ("PROWLARR_URL", "NEWZNAB_URL"):
+            trusted_url = normalize_http_config_url(config.get(key, ""))
+            if trusted_url and _url_origin(trusted_url) == target_origin:
+                return True
+
+        return False
+
     def _get_prowlarr_headers(self, url: str) -> dict:
         # TODO(shelfmark): Move this source-specific Prowlarr auth handling into a source hook.
         api_key = str(config.get("PROWLARR_API_KEY", "") or "").strip()
@@ -326,15 +356,20 @@ class SABnzbdClient(DownloadClient):
 
         try:
             logger.debug("Adding NZB to SABnzbd: %s", name)
-            nzb_filename = self._build_nzb_filename(name, url)
-            nzb_content = self._fetch_nzb_content(url)
-            result = self._api_post_file(nzb_content, nzb_filename, name, resolved_category)
-            nzo_id = self._extract_nzo_id(result)
-            logger.info("Added NZB to SABnzbd: %s", nzo_id)
+            if self._can_prefetch_nzb_url(url):
+                nzb_filename = self._build_nzb_filename(name, url)
+                nzb_content = self._fetch_nzb_content(url)
+                result = self._api_post_file(nzb_content, nzb_filename, name, resolved_category)
+                nzo_id = self._extract_nzo_id(result)
+                logger.info("Added NZB to SABnzbd: %s", nzo_id)
+            else:
+                logger.info("Skipping SABnzbd addfile prefetch for untrusted NZB URL")
+                nzo_id = ""
         except _SABNZBD_CLIENT_ERRORS as e:
             logger.warning("SABnzbd addfile failed, falling back to addurl: %s", e)
         else:
-            return nzo_id
+            if nzo_id:
+                return nzo_id
 
         try:
             result = self._api_call(

shelfmark/download/clients/torrent_utils.py

@@ -7,12 +7,13 @@ import hashlib
 import re
 from binascii import Error as BinasciiError
 from dataclasses import dataclass
-from urllib.parse import parse_qs, urljoin, urlparse
+from urllib.parse import ParseResult, parse_qs, urljoin, urlparse
 
 import requests
 
 from shelfmark.core.config import config
 from shelfmark.core.logger import setup_logger
+from shelfmark.core.utils import normalize_http_url
 from shelfmark.download.network import get_ssl_verify
 
 logger = setup_logger(__name__)
@@ -32,6 +33,7 @@ _TORRENT_FETCH_ERRORS = (
     ValueError,
 )
 _TORRENT_PARSE_ERRORS = (IndexError, KeyError, TypeError, ValueError)
+_TRUSTED_TORRENT_FETCH_URL_CONFIG_KEYS = ("PROWLARR_URL", "NEWZNAB_URL")
 
 type BencodeValue = dict[str | bytes, BencodeValue] | list[BencodeValue] | int | bytes | str
 
@@ -93,6 +95,9 @@ def extract_torrent_info(
     # Not a magnet - try to fetch and parse the .torrent file
     if not fetch_torrent:
         return TorrentInfo(info_hash=expected_hash, torrent_data=None, is_magnet=False)
+    if not _is_trusted_torrent_fetch_url(url):
+        logger.debug("Skipping torrent prefetch for untrusted URL: %s...", url[:80])
+        return TorrentInfo(info_hash=expected_hash, torrent_data=None, is_magnet=False)
 
     headers: dict[str, str] = {"Accept": "application/x-bittorrent"}
     # TODO(shelfmark): Move this source-specific Prowlarr auth handling into a source hook.
@@ -133,6 +138,12 @@ def extract_torrent_info(
                     is_magnet=True,
                     magnet_url=redirect_url,
                 )
+            if not _is_trusted_torrent_fetch_url(redirect_url):
+                logger.debug(
+                    "Skipping torrent prefetch redirect to untrusted URL: %s...",
+                    redirect_url[:80],
+                )
+                return TorrentInfo(info_hash=expected_hash, torrent_data=None, is_magnet=False)
             # Not a magnet redirect, follow it manually
             logger.debug("Following redirect to: %s...", redirect_url[:80])
             resp = requests.get(
@@ -172,6 +183,36 @@ def extract_torrent_info(
         return TorrentInfo(info_hash=expected_hash, torrent_data=None, is_magnet=False)
 
 
+def _is_trusted_torrent_fetch_url(url: str) -> bool:
+    parsed = urlparse(url)
+    origin = _url_origin(parsed)
+    if origin is None:
+        return False
+
+    for key in _TRUSTED_TORRENT_FETCH_URL_CONFIG_KEYS:
+        configured_url = str(config.get(key, "") or "").strip()
+        if not configured_url:
+            continue
+        configured_origin = _url_origin(urlparse(normalize_http_url(configured_url)))
+        if configured_origin == origin:
+            return True
+
+    return False
+
+
+def _url_origin(parsed_url: ParseResult) -> tuple[str, str, int] | None:
+    scheme = parsed_url.scheme.lower()
+    if scheme not in {"http", "https"}:
+        return None
+
+    hostname = parsed_url.hostname
+    if not hostname:
+        return None
+
+    default_port = 443 if scheme == "https" else 80
+    return (scheme, hostname.lower(), parsed_url.port or default_port)
+
+
 def parse_transmission_url(url: str) -> tuple[str, str, int, str]:
     """Parse Transmission URL into (protocol, host, port, path)."""
     parsed = urlparse(url)

shelfmark/download/fs.py

@@ -229,6 +229,10 @@ def _is_permission_error(e: Exception) -> bool:
     return isinstance(e, PermissionError) or (isinstance(e, OSError) and e.errno == errno.EPERM)
 
 
+def _should_fallback_to_content_copy(error: Exception) -> bool:
+    return _is_permission_error(error) or (isinstance(error, OSError) and error.errno == errno.EIO)
+
+
 def _system_op(op: str, source: Path, dest: Path) -> None:
     """Execute system command (mv or cp) as final fallback."""
     logger.warning("Attempting system %s as final fallback: %s -> %s", op, source, dest)
@@ -463,9 +467,9 @@ def atomic_move(source_path: Path, dest_path: Path, max_attempts: int = 100) ->
                     try:
                         run_blocking_io(shutil.copy2, str(source_path), str(temp_path))
                     except (PermissionError, OSError) as copy_error:
-                        if _is_permission_error(copy_error):
+                        if _should_fallback_to_content_copy(copy_error):
                             logger.debug(
-                                "Permission error during move-copy, falling back to copyfile (%s -> %s): %s",
+                                "copy2 failed during move-copy, falling back to copyfile (%s -> %s): %s",
                                 source_path,
                                 temp_path,
                                 copy_error,
@@ -583,7 +587,7 @@ def atomic_hardlink(source_path: Path, dest_path: Path, max_attempts: int = 100)
                     error=e,
                 )
             if permission_error or _hardlink_not_supported(e):
-                logger.debug(
+                logger.warning(
                     "Hardlink failed (%s), falling back to copy: %s -> %s",
                     e,
                     source_path,
@@ -631,16 +635,16 @@ def atomic_copy(source_path: Path, dest_path: Path, max_attempts: int = 100) ->
             try:
                 run_blocking_io(shutil.copy2, str(source_path), str(temp_path))
             except (PermissionError, OSError) as e:
-                # Handle NFS permission errors immediately here
-                if _is_permission_error(e):
-                    log_transfer_permission_context(
-                        "atomic_copy",
-                        source=source_path,
-                        dest=temp_path,
-                        error=e,
-                    )
+                if _should_fallback_to_content_copy(e):
+                    if _is_permission_error(e):
+                        log_transfer_permission_context(
+                            "atomic_copy",
+                            source=source_path,
+                            dest=temp_path,
+                            error=e,
+                        )
                     logger.debug(
-                        "Permission error during copy, falling back to copyfile (%s -> %s): %s",
+                        "copy2 failed during copy, falling back to copyfile (%s -> %s): %s",
                         source_path,
                         temp_path,
                         e,

shelfmark/download/orchestrator.py

@@ -29,6 +29,7 @@ from shelfmark.download.postprocess.pipeline import is_torrent_source, safe_clea
 from shelfmark.download.postprocess.router import post_process_download
 from shelfmark.release_sources import (
     get_handler,
+    get_source,
     get_source_display_name,
 )
 
@@ -108,6 +109,13 @@ def _parse_release_search_mode(value: object) -> SearchMode:
     raise ValueError(msg)
 
 
+def _source_unavailable_message(source_name: str) -> str | None:
+    source = get_source(source_name)
+    if source.is_available():
+        return None
+    return f"{source.display_name} is unavailable. Enable and configure the source in Settings."
+
+
 def _optional_number(value: object) -> float | None:
     if isinstance(value, bool):
         return float(value)
@@ -138,13 +146,6 @@ def _optional_positive_int(value: object) -> int | None:
     return parsed if parsed > 0 else None
 
 
-def _seed_time_seconds_to_minutes(value: object) -> int | None:
-    seed_time_seconds = _optional_positive_int(value)
-    if seed_time_seconds is None:
-        return None
-    return (seed_time_seconds + 59) // 60
-
-
 def _config_float(value: object, default: float) -> float:
     if isinstance(value, bool) or value is None:
         return default
@@ -166,19 +167,34 @@ def _build_retry_resolution_fields(
     if not isinstance(extra, dict):
         extra = {}
 
+    retry_download_url = normalize_optional_text(release_data.get("download_url"))
     protocol = normalize_optional_text(release_data.get("protocol"))
+    source = normalize_optional_text(release_data.get("source"))
+    if source is not None:
+        handler = get_handler(source)
+        source_retry_fields = handler.build_retry_resolution_fields(release_data)
+        retry_download_url = (
+            normalize_optional_text(source_retry_fields.get("retry_download_url"))
+            or retry_download_url
+        )
+        protocol = (
+            normalize_optional_text(source_retry_fields.get("retry_download_protocol")) or protocol
+        )
+
     ratio_limit = _optional_number(release_data.get("ratio_limit"))
-    if ratio_limit is None:
-        ratio_limit = _optional_number(extra.get("minimum_ratio"))
+    if ratio_limit is None and config.get("PROWLARR_USE_SEED_PREFERENCES", False):
+        ratio_limit = _optional_number(extra.get("configured_ratio_limit"))
 
     seeding_time_limit_minutes = _optional_positive_int(
         release_data.get("seeding_time_limit_minutes")
     )
-    if seeding_time_limit_minutes is None:
-        seeding_time_limit_minutes = _seed_time_seconds_to_minutes(extra.get("minimum_seed_time"))
+    if seeding_time_limit_minutes is None and config.get("PROWLARR_USE_SEED_PREFERENCES", False):
+        seeding_time_limit_minutes = _optional_positive_int(
+            extra.get("configured_seed_time_minutes")
+        )
 
     return {
-        "retry_download_url": normalize_optional_text(release_data.get("download_url")),
+        "retry_download_url": retry_download_url,
         "retry_download_protocol": protocol.lower() if protocol is not None else None,
         "retry_release_name": normalize_optional_text(release_data.get("title")),
         "retry_expected_hash": normalize_optional_text(
@@ -199,6 +215,11 @@ def queue_release(
     """Add a release to the download queue. Returns (success, error_message)."""
     try:
         source = release_data["source"]
+        unavailable_message = _source_unavailable_message(source)
+        if unavailable_message:
+            logger.warning("Rejected queue request for unavailable source %s", source)
+            return False, unavailable_message
+
         extra = release_data.get("extra", {})
         raw_request_id = release_data.get("_request_id")
         request_id: int | None = None
@@ -590,6 +611,16 @@ def _download_task(task_id: str, cancel_flag: Event) -> str | None:
         logger.error("Task not found in queue: %s", task_id)
         return None
 
+    unavailable_message = _source_unavailable_message(task.source)
+    if unavailable_message:
+        logger.warning("Task %s: source unavailable: %s", task_id, unavailable_message)
+        _capture_task_error(
+            task,
+            message=unavailable_message,
+            exc_type="SourceUnavailable",
+        )
+        return None
+
     title_label = task.title or "Unknown title"
     logger.info(
         "Task %s: starting download (%s) - %s",

shelfmark/download/postprocess/transfer.py

@@ -13,7 +13,6 @@ from shelfmark.core.naming import (
     build_library_path,
     derive_primary_title,
     parse_naming_template,
-    same_filesystem,
     sanitize_filename,
 )
 from shelfmark.core.utils import is_audiobook as check_audiobook
@@ -39,10 +38,7 @@ _TRANSFER_PROCESS_ERRORS = (AttributeError, KeyError, OSError, RuntimeError, Typ
 
 
 def should_hardlink(task: DownloadTask) -> bool:
-    """Check if hardlinking is enabled for this task (Prowlarr torrents only)."""
-    if task.source != "prowlarr":
-        return False
-
+    """Check if hardlinking is enabled for this torrent-backed task."""
     if not task.original_download_path:
         return False
 
@@ -96,21 +92,21 @@ def resolve_hardlink_source(
     if hardlink_enabled and task.original_download_path:
         hardlink_source = Path(task.original_download_path)
         hardlink_source_exists = run_blocking_io(hardlink_source.exists)
-        if (
-            destination
-            and hardlink_source_exists
-            and run_blocking_io(same_filesystem, hardlink_source, destination)
-        ):
+        if hardlink_source_exists:
             use_hardlink = True
             source_path = hardlink_source
-        elif hardlink_source_exists:
-            logger.warning(
-                "Cannot hardlink: %s and %s are on different filesystems. Falling back to copy. To fix: ensure torrent client downloads to same filesystem as destination.",
+            logger.info(
+                "Hardlink enabled for task %s; attempting link from %s to %s",
+                task.task_id,
                 hardlink_source,
                 destination,
             )
-            if status_callback:
-                status_callback("resolving", "Cannot hardlink (different filesystems), using copy")
+        else:
+            logger.warning(
+                "Hardlink enabled for task %s, but source path does not exist: %s",
+                task.task_id,
+                hardlink_source,
+            )
 
     return TransferPlan(
         source_path=source_path,

shelfmark/main.py

@@ -26,6 +26,7 @@ from shelfmark.config.env import (
     BUILD_VERSION,
     CONFIG_DIR,
     CWA_DB_PATH,
+    DISABLE_LOCAL_AUTH,
     FLASK_HOST,
     FLASK_PORT,
     HIDE_LOCAL_AUTH,
@@ -1477,6 +1478,43 @@ def _download_row_owned_by_actor(
     return False
 
 
+def _resolve_queue_actor() -> tuple[bool, int | None, str | None, Response | None]:
+    is_admin, db_user_id, can_access_status = _resolve_status_scope()
+    actor_username = session.get("user_id")
+    normalized_actor_username = actor_username if isinstance(actor_username, str) else None
+
+    if not is_admin and (not can_access_status or db_user_id is None):
+        return (
+            is_admin,
+            db_user_id,
+            normalized_actor_username,
+            jsonify({"error": "User identity unavailable", "code": "user_identity_unavailable"}),
+        )
+
+    return is_admin, db_user_id, normalized_actor_username, None
+
+
+def _queue_task_visible_to_actor(
+    task_id: str,
+    *,
+    is_admin: bool,
+    actor_user_id: int | None,
+    actor_username: str | None,
+) -> bool:
+    if is_admin:
+        return True
+
+    task = backend.book_queue.get_task(task_id)
+    if task is None:
+        return False
+
+    return _task_owned_by_actor(
+        task,
+        actor_user_id=actor_user_id,
+        actor_username=actor_username,
+    )
+
+
 backend.book_queue.set_queue_hook(_record_download_queued)
 backend.book_queue.set_terminal_status_hook(_record_download_terminal_snapshot)
 
@@ -1586,6 +1624,7 @@ def api_local_download() -> Response | tuple[Response, int]:
 
 
 @app.route("/api/covers/<cover_id>", methods=["GET"])
+@login_required
 def api_cover(cover_id: str) -> Response | tuple[Response, int]:
     """Serve a cached book cover image.
 
@@ -1797,6 +1836,22 @@ def api_set_priority(book_id: str) -> Response | tuple[Response, int]:
             return jsonify({"error": "Priority not provided"}), 400
 
         priority = int(data["priority"])
+
+        is_admin, db_user_id, actor_username, identity_error = _resolve_queue_actor()
+        if identity_error is not None:
+            return identity_error, 403
+
+        task = backend.book_queue.get_task(book_id)
+        if task is None:
+            return jsonify({"error": "Failed to update priority or book not found"}), 404
+
+        if not is_admin and not _task_owned_by_actor(
+            task,
+            actor_user_id=db_user_id,
+            actor_username=actor_username,
+        ):
+            return jsonify({"error": "Forbidden", "code": "download_not_owned"}), 403
+
         success = backend.set_book_priority(book_id, priority)
 
         if success:
@@ -1835,6 +1890,23 @@ def api_reorder_queue() -> Response | tuple[Response, int]:
             if not isinstance(priority, int):
                 return jsonify({"error": f"Invalid priority for book {book_id}"}), 400
 
+        is_admin, db_user_id, actor_username, identity_error = _resolve_queue_actor()
+        if identity_error is not None:
+            return identity_error, 403
+
+        if not is_admin:
+            owned_book_priorities = {}
+            for book_id in book_priorities:
+                task = backend.book_queue.get_task(str(book_id))
+                if task is None:
+                    continue
+                if not _task_owned_by_actor(
+                    task, actor_user_id=db_user_id, actor_username=actor_username
+                ):
+                    return jsonify({"error": "Forbidden", "code": "download_not_owned"}), 403
+                owned_book_priorities[book_id] = book_priorities[book_id]
+            book_priorities = owned_book_priorities
+
         success = backend.reorder_queue(book_priorities)
 
         if success:
@@ -1856,6 +1928,20 @@ def api_queue_order() -> Response | tuple[Response, int]:
     """
     try:
         queue_order = backend.get_queue_order()
+        is_admin, db_user_id, actor_username, identity_error = _resolve_queue_actor()
+        if identity_error is not None:
+            return identity_error, 403
+        if not is_admin:
+            queue_order = [
+                item
+                for item in queue_order
+                if _queue_task_visible_to_actor(
+                    str(item.get("id", "")),
+                    is_admin=False,
+                    actor_user_id=db_user_id,
+                    actor_username=actor_username,
+                )
+            ]
         return jsonify({"queue": queue_order})
     except _OPERATIONAL_ERRORS as e:
         logger.error_trace(f"Queue order error: {e}")
@@ -1873,6 +1959,20 @@ def api_active_downloads() -> Response | tuple[Response, int]:
     """
     try:
         active_downloads = backend.get_active_downloads()
+        is_admin, db_user_id, actor_username, identity_error = _resolve_queue_actor()
+        if identity_error is not None:
+            return identity_error, 403
+        if not is_admin:
+            active_downloads = [
+                task_id
+                for task_id in active_downloads
+                if _queue_task_visible_to_actor(
+                    task_id,
+                    is_admin=False,
+                    actor_user_id=db_user_id,
+                    actor_username=actor_username,
+                )
+            ]
         return jsonify({"active_downloads": active_downloads})
     except _OPERATIONAL_ERRORS as e:
         logger.error_trace(f"Active downloads error: {e}")
@@ -1955,6 +2055,9 @@ def api_login() -> Response | tuple[Response, int]:
         if auth_mode == "proxy":
             return jsonify({"error": "Proxy authentication is enabled"}), 401
 
+        if auth_mode in ("builtin", "oidc") and DISABLE_LOCAL_AUTH:
+            return jsonify({"error": "Local authentication is disabled"}), 403
+
         if auth_mode == "oidc" and HIDE_LOCAL_AUTH:
             return jsonify({"error": "Local authentication is disabled"}), 403
 
@@ -2184,6 +2287,9 @@ def api_auth_check() -> Response | tuple[Response, int]:
             if logout_url:
                 response_data["logout_url"] = logout_url
 
+        if auth_mode in ("builtin", "oidc") and DISABLE_LOCAL_AUTH:
+            response_data["hide_local_auth"] = True
+
         # Add custom OIDC button label and SSO enforcement flags if configured
         if auth_mode == "oidc":
             oidc_button_label = app_config.get("OIDC_BUTTON_LABEL", "")

shelfmark/metadata_providers/googlebooks.py

@@ -47,6 +47,11 @@ _HTTP_STATUS_NOT_FOUND = HTTPStatus.NOT_FOUND
 
 GOOGLE_BOOKS_BASE_URL = "https://www.googleapis.com/books/v1"
 
+
+class _GoogleBooksRequestError(Exception):
+    """Raised when Google Books does not return a usable API response."""
+
+
 # Sort mapping - Google only supports "relevance" and "newest"
 SORT_MAPPING: dict[SortOrder, str | None] = {
     SortOrder.RELEVANCE: None,  # Default, no param needed
@@ -117,7 +122,10 @@ class GoogleBooksProvider(MetadataProvider):
             f"{options.query}:{options.search_type.value}:{options.sort.value}:"
             f"{options.language}:{options.limit}:{options.page}:{fields_key}"
         )
-        return self._search_cached(cache_key, options)
+        try:
+            return self._search_cached(cache_key, options)
+        except _GoogleBooksRequestError:
+            return []
 
     @cacheable(
         ttl_key="METADATA_CACHE_SEARCH_TTL",
@@ -166,18 +174,19 @@ class GoogleBooksProvider(MetadataProvider):
         if options.language:
             params["langRestrict"] = options.language
 
+        result = self._make_request("/volumes", params)
+        if result is None:
+            raise _GoogleBooksRequestError
+
         books: list[BookMetadata] = []
         try:
-            result = self._make_request("/volumes", params)
-            if result:
-                items = result.get("items", [])
+            items = result.get("items", [])
+            for item in items:
+                book = self._parse_volume(item)
+                if book:
+                    books.append(book)
 
-                for item in items:
-                    book = self._parse_volume(item)
-                    if book:
-                        books.append(book)
-
-                logger.info("Google Books search '%s' returned %s results", query, len(books))
+            logger.info("Google Books search '%s' returned %s results", query, len(books))
 
         except Exception:
             logger.exception("Google Books search error")

shelfmark/release_sources/__init__.py

@@ -390,6 +390,10 @@ class DownloadHandler(ABC):
         """
         return
 
+    def build_retry_resolution_fields(self, release_data: dict[str, Any]) -> dict[str, Any]:
+        """Return private queue-time fields needed for restart-safe retry."""
+        return {}
+
     @abstractmethod
     def cancel(self, task_id: str) -> bool:
         """Cancel an in-progress download."""

shelfmark/release_sources/audiobookbay/handler.py

@@ -24,6 +24,8 @@ if TYPE_CHECKING:
     from shelfmark.core.models import DownloadTask
 
 logger = setup_logger(__name__)
+DEFAULT_ABB_HOSTNAME = "audiobookbay.lu"
+ALLOWED_DETAIL_URL_SCHEMES = {"https"}
 
 
 def _resolve_configured_hostname() -> str:
@@ -32,6 +34,23 @@ def _resolve_configured_hostname() -> str:
     return normalize_hostname(configured_hostname if isinstance(configured_hostname, str) else "")
 
 
+def _resolve_allowed_detail_hostname() -> str:
+    """Return the ABB hostname allowed for queued detail URLs."""
+    return _resolve_configured_hostname() or DEFAULT_ABB_HOSTNAME
+
+
+def _detail_url_matches_host(detail_url: str, hostname: str) -> bool:
+    """Return True when a detail URL uses the allowed ABB scheme and host."""
+    parsed = urlparse(detail_url)
+    detail_hostname = normalize_hostname(parsed.hostname)
+    allowed_hostname = normalize_hostname(hostname).lower().rstrip(".")
+    return (
+        parsed.scheme.lower() in ALLOWED_DETAIL_URL_SCHEMES
+        and bool(detail_hostname)
+        and detail_hostname.lower().rstrip(".") == allowed_hostname
+    )
+
+
 @register_handler("audiobookbay")
 class AudiobookBayHandler(ExternalClientHandler):
     """Handler for AudiobookBay downloads via configured torrent client."""
@@ -69,9 +88,14 @@ class AudiobookBayHandler(ExternalClientHandler):
             logger.warning("Missing details URL for AudiobookBay task: %s", task.task_id)
             return None
 
-        hostname = _resolve_configured_hostname()
-        if not hostname:
-            hostname = normalize_hostname(urlparse(detail_url).hostname)
+        hostname = _resolve_allowed_detail_hostname()
+        if not _detail_url_matches_host(detail_url, hostname):
+            status_callback("error", "Invalid AudiobookBay details URL")
+            logger.warning(
+                "Rejected AudiobookBay details URL with invalid scheme or host: %s",
+                detail_url,
+            )
+            return None
 
         status_callback("resolving", "Extracting magnet link")
         magnet_link = scraper.extract_magnet_link(detail_url, hostname)

shelfmark/release_sources/irc/client.py

@@ -14,7 +14,7 @@ from typing import TYPE_CHECKING, Self
 
 from shelfmark.core.logger import setup_logger
 
-from .dcc import DCCOffer, parse_dcc_send
+from .dcc import DCCError, DCCOffer, parse_dcc_send, validate_dcc_endpoint
 
 if TYPE_CHECKING:
     from collections.abc import Iterator
@@ -400,6 +400,33 @@ class IRCClient:
             self.send_notice(sender, f"\x01VERSION {self.version}\x01")
             logger.debug("Sent VERSION to %s", sender)
 
+    @staticmethod
+    def _sender_nick(msg: IRCMessage) -> str | None:
+        """Extract the nick from a message prefix."""
+        if not msg.prefix:
+            return None
+        return msg.prefix.split("!", maxsplit=1)[0]
+
+    def _is_allowed_dcc_sender(
+        self,
+        msg: IRCMessage,
+        expected_senders: set[str] | None,
+    ) -> bool:
+        allowed_senders = expected_senders or self.online_servers
+        if not allowed_senders:
+            return True
+
+        sender = self._sender_nick(msg)
+        if sender is None:
+            logger.warning("Ignoring DCC offer without sender prefix")
+            return False
+
+        normalized_allowed = {nick.casefold() for nick in allowed_senders}
+        if sender.casefold() not in normalized_allowed:
+            logger.warning("Ignoring DCC offer from unexpected sender: %s", sender)
+            return False
+        return True
+
     def read_messages(self, *, auto_handle: bool = True) -> Iterator[IRCMessage]:
         """Read and yield IRC messages, optionally auto-handling PING/VERSION."""
         for line in self._recv_lines():
@@ -422,6 +449,7 @@ class IRCClient:
         timeout: float = 60.0,
         *,
         result_type: bool = False,
+        expected_senders: set[str] | None = None,
     ) -> DCCOffer | None:
         """Wait for a DCC SEND offer. Returns None on timeout or no results."""
         target_event = IRCEvent.SEARCH_RESULT if result_type else IRCEvent.BOOK_RESULT
@@ -433,12 +461,15 @@ class IRCClient:
                 return None
 
             if msg.event == target_event:
+                if not self._is_allowed_dcc_sender(msg, expected_senders):
+                    continue
                 try:
                     offer = parse_dcc_send(msg.raw)
+                    validate_dcc_endpoint(offer)
                     logger.info("Received DCC offer: %s", offer.filename)
-                except Exception:
-                    logger.exception("Failed to parse DCC")
-                    return None
+                except DCCError:
+                    logger.exception("Rejected DCC offer")
+                    continue
                 else:
                     return offer
 

shelfmark/release_sources/irc/dcc.py

@@ -7,6 +7,8 @@ import re
 import socket
 import struct
 from dataclasses import dataclass
+from ipaddress import ip_address
+from pathlib import PureWindowsPath
 from typing import TYPE_CHECKING
 
 from shelfmark.core.logger import setup_logger
@@ -59,6 +61,10 @@ class DCCConnectionError(DCCError):
     """Failed to connect to DCC sender."""
 
 
+class DCCSecurityError(DCCError):
+    """Rejected unsafe DCC offer metadata."""
+
+
 def int_to_ip(ip_int: int) -> str:
     """Convert 32-bit integer (DCC format) to dotted IP notation."""
     packed = struct.pack(">I", ip_int)
@@ -76,15 +82,53 @@ def parse_dcc_send(text: str) -> DCCOffer:
     ip_int = int(match.group(2))
     port = int(match.group(3))
     size = int(match.group(4))
+    try:
+        ip = int_to_ip(ip_int)
+    except struct.error as e:
+        msg = f"Invalid DCC IP integer: {ip_int}"
+        raise DCCParseError(msg) from e
 
     return DCCOffer(
-        filename=filename,
-        ip=int_to_ip(ip_int),
+        filename=safe_dcc_filename(filename),
+        ip=ip,
         port=port,
         size=size,
     )
 
 
+def safe_dcc_filename(filename: str) -> str:
+    """Return a DCC filename that cannot escape its destination directory."""
+    safe_name = filename.strip()
+    windows_path = PureWindowsPath(safe_name)
+    if (
+        not safe_name
+        or safe_name in {".", ".."}
+        or "/" in safe_name
+        or "\\" in safe_name
+        or windows_path.drive
+    ):
+        msg = f"Rejected unsafe DCC filename: {filename!r}"
+        raise DCCSecurityError(msg)
+    return safe_name
+
+
+def validate_dcc_endpoint(offer: DCCOffer) -> None:
+    """Reject DCC endpoints that can target local/internal network services."""
+    if not 1 <= offer.port <= 65535:
+        msg = f"Rejected invalid DCC port: {offer.port}"
+        raise DCCSecurityError(msg)
+
+    try:
+        address = ip_address(offer.ip)
+    except ValueError as e:
+        msg = f"Rejected invalid DCC IP address: {offer.ip}"
+        raise DCCSecurityError(msg) from e
+
+    if not address.is_global:
+        msg = f"Rejected non-public DCC endpoint: {offer.ip}"
+        raise DCCSecurityError(msg)
+
+
 def download_dcc(
     offer: DCCOffer,
     dest_path: Path,
@@ -93,6 +137,7 @@ def download_dcc(
     timeout: float = 30.0,
 ) -> None:
     """Download file via DCC protocol to dest_path. Raises DCCError on failure."""
+    validate_dcc_endpoint(offer)
     logger.info("DCC connecting to %s:%s for %s", offer.ip, offer.port, offer.filename)
 
     try:

shelfmark/release_sources/irc/handler.py

@@ -12,7 +12,7 @@ from shelfmark.core.logger import setup_logger
 from shelfmark.release_sources import DownloadHandler, register_handler
 
 from .connection_manager import connection_manager
-from .dcc import DCCError, download_dcc
+from .dcc import DCCError, download_dcc, safe_dcc_filename
 
 if TYPE_CHECKING:
     from collections.abc import Callable
@@ -23,6 +23,15 @@ if TYPE_CHECKING:
 logger = setup_logger(__name__)
 
 
+def _server_from_download_request(download_request: str) -> str | None:
+    """Extract the expected IRC bot nick from a release request line."""
+    stripped = download_request.strip()
+    if not stripped.startswith("!"):
+        return None
+    server = stripped[1:].split(maxsplit=1)[0]
+    return server or None
+
+
 def _config_text(key: str) -> str:
     """Read a string config value with whitespace trimmed."""
     value = config.get(key, "")
@@ -72,6 +81,7 @@ class IRCDownloadHandler(DownloadHandler):
         """Download a release via IRC DCC. task.task_id contains the IRC request string."""
         download_request = task.task_id
         logger.info("IRC download: %s...", download_request[:60])
+        expected_server = _server_from_download_request(download_request)
 
         # Get IRC settings
         server = _config_text("IRC_SERVER")
@@ -123,7 +133,8 @@ class IRCDownloadHandler(DownloadHandler):
             # Phase 3: Wait for DCC offer
             status_callback("resolving", "Waiting for bot response")
 
-            offer = client.wait_for_dcc(timeout=120.0, result_type=False)
+            wait_kwargs = {"expected_senders": {expected_server}} if expected_server else {}
+            offer = client.wait_for_dcc(timeout=120.0, result_type=False, **wait_kwargs)
 
             if not offer:
                 status_callback("error", "No response from bot")
@@ -137,7 +148,9 @@ class IRCDownloadHandler(DownloadHandler):
             status_callback("downloading", "")
 
             # Get file extension from offer filename
-            ext = Path(offer.filename).suffix.lstrip(".") or task.format or "epub"
+            ext = (
+                Path(safe_dcc_filename(offer.filename)).suffix.lstrip(".") or task.format or "epub"
+            )
 
             # Stage to temp directory (lazy import to avoid circular import)
             from shelfmark.download.staging import get_staging_path

shelfmark/release_sources/irc/source.py

@@ -30,7 +30,7 @@ from shelfmark.release_sources import (
 )
 
 from .connection_manager import connection_manager
-from .dcc import DCCError, download_dcc
+from .dcc import DCCError, download_dcc, safe_dcc_filename
 from .parser import SearchResult, extract_results_from_zip, parse_results_file
 
 logger = setup_logger(__name__)
@@ -227,7 +227,8 @@ class IRCReleaseSource(ReleaseSource):
 
             # Wait for results DCC - this is the long wait
             _emit_status(f"Connected to #{channel} - Waiting for results...", phase="searching")
-            offer = client.wait_for_dcc(timeout=60.0, result_type=True)
+            wait_kwargs = {"expected_senders": {search_bot}} if search_bot else {}
+            offer = client.wait_for_dcc(timeout=60.0, result_type=True, **wait_kwargs)
             if not offer:
                 logger.info("No search results received")
                 _emit_status("No results found", phase="complete")
@@ -247,7 +248,7 @@ class IRCReleaseSource(ReleaseSource):
             # Download results file
             _emit_status(f"Connected to #{channel} - Downloading results...", phase="downloading")
             with tempfile.TemporaryDirectory() as tmpdir:
-                result_path = Path(tmpdir) / offer.filename
+                result_path = Path(tmpdir) / safe_dcc_filename(offer.filename)
                 download_dcc(offer, result_path, timeout=30.0)
 
                 # Parse results

shelfmark/release_sources/newznab/handler.py

@@ -8,6 +8,7 @@ if TYPE_CHECKING:
     from shelfmark.core.models import DownloadTask
 
 from shelfmark.core.logger import setup_logger
+from shelfmark.core.request_helpers import normalize_optional_text
 from shelfmark.download.clients import DownloadClient, get_client, list_configured_clients
 from shelfmark.download.clients.base_handler import (
     COMPLETED_PATH_MAX_ATTEMPTS as _DEFAULT_COMPLETED_PATH_MAX_ATTEMPTS,
@@ -83,6 +84,44 @@ class NewznabHandler(ExternalClientHandler):
     def _completed_path_max_attempts(self) -> int:
         return COMPLETED_PATH_MAX_ATTEMPTS
 
+    def build_retry_resolution_fields(self, release_data: dict) -> dict:
+        source_id = normalize_optional_text(release_data.get("source_id"))
+        if source_id is None:
+            return {}
+
+        result = get_release(source_id)
+        if result is None:
+            return {}
+
+        return {
+            "retry_download_url": normalize_optional_text(_get_download_url(result)),
+            "retry_download_protocol": normalize_optional_text(_get_protocol(result)),
+        }
+
+    @classmethod
+    def _restore_download_request_from_task(cls, task: DownloadTask) -> DownloadRequest | None:
+        retry_download_url = normalize_optional_text(getattr(task, "retry_download_url", None))
+        retry_download_protocol = normalize_optional_text(
+            getattr(task, "retry_download_protocol", None)
+        )
+        if retry_download_url is None or retry_download_protocol is None:
+            return None
+
+        protocol = retry_download_protocol.lower()
+        if protocol not in {"torrent", "usenet"}:
+            return None
+
+        return DownloadRequest(
+            url=retry_download_url,
+            protocol=protocol,
+            release_name=(
+                normalize_optional_text(getattr(task, "retry_release_name", None))
+                or task.title
+                or "Unknown"
+            ),
+            expected_hash=normalize_optional_text(getattr(task, "retry_expected_hash", None)),
+        )
+
     def _resolve_download(
         self,
         task: DownloadTask,
@@ -90,6 +129,10 @@ class NewznabHandler(ExternalClientHandler):
     ) -> DownloadRequest | None:
         result = get_release(task.task_id)
         if not result:
+            restored_request = self._restore_download_request_from_task(task)
+            if restored_request is not None:
+                logger.info("Restored Newznab download request for retry: %s", task.task_id)
+                return restored_request
             logger.warning("Newznab release cache miss: %s", task.task_id)
             status_callback("error", "Release not found in cache (may have expired)")
             return None

shelfmark/release_sources/newznab/source.py

@@ -109,7 +109,6 @@ def _newznab_result_to_release(result: dict, content_type: str = "ebook") -> Rel
     if is_freeleech:
         add_flag("FreeLeech")
 
-    download_url = str(result.get("downloadUrl") or "").strip()
     info_url = result.get("infoUrl") or result.get("guid")
 
     return Release(
@@ -120,7 +119,7 @@ def _newznab_result_to_release(result: dict, content_type: str = "ebook") -> Rel
         language=None,
         size=_parse_size(size_bytes),
         size_bytes=size_bytes,
-        download_url=download_url or None,
+        download_url=None,
         info_url=info_url,
         protocol=protocol,
         indexer=indexer,

shelfmark/release_sources/prowlarr/api.py

@@ -3,7 +3,7 @@
 from collections.abc import Mapping
 from contextlib import suppress
 from http import HTTPStatus
-from typing import Any
+from typing import Any, TypedDict
 
 import requests
 
@@ -11,7 +11,7 @@ from shelfmark.core.logger import setup_logger
 from shelfmark.core.utils import normalize_http_url
 from shelfmark.download.network import get_ssl_verify
 from shelfmark.release_sources.prowlarr.torznab import parse_torznab_xml
-from shelfmark.release_sources.prowlarr.utils import coerce_int_like
+from shelfmark.release_sources.prowlarr.utils import coerce_float_like, coerce_int_like
 
 logger = setup_logger(__name__)
 
@@ -27,6 +27,15 @@ _PROWLARR_CLIENT_ERRORS = (
 )
 
 
+class IndexerSeedSettings(TypedDict, total=False):
+    ratio_limit: float
+    seeding_time_limit_minutes: int
+
+
+_INDEXER_FIELD_SEED_RATIO = "torrentBaseSettings.seedRatio"
+_INDEXER_FIELD_SEED_TIME_MINUTES = "torrentBaseSettings.seedTime"
+
+
 def _normalize_json_object(payload: object, *, context: str) -> dict[str, Any]:
     """Return a JSON object payload with string keys or raise on unexpected shapes."""
     if not isinstance(payload, Mapping):
@@ -52,6 +61,19 @@ def _normalize_json_object_list(payload: object, *, context: str) -> list[dict[s
     return [_normalize_json_object(item, context=context) for item in payload]
 
 
+def _get_field_value(fields: object, name: str) -> object | None:
+    if not isinstance(fields, list):
+        return None
+
+    for field in fields:
+        if not isinstance(field, Mapping):
+            continue
+        if field.get("name") == name:
+            return field.get("value")
+
+    return None
+
+
 class ProwlarrClient:
     """Client for interacting with the Prowlarr API."""
 
@@ -183,6 +205,42 @@ class ProwlarrClient:
 
         return enriched_ids
 
+    def get_indexer_seed_settings(
+        self, *, restrict_to: list[int] | None = None
+    ) -> dict[int, IndexerSeedSettings]:
+        """Return configured per-indexer torrent share limits.
+
+        Prowlarr exposes seedTime in minutes, which is also the unit expected by
+        torrent clients.
+        """
+        settings_by_indexer: dict[int, IndexerSeedSettings] = {}
+
+        for idx in self.get_enabled_indexers_detailed():
+            idx_id_int = coerce_int_like(idx.get("id"))
+            if idx_id_int is None:
+                continue
+            if restrict_to is not None and idx_id_int not in restrict_to:
+                continue
+            if str(idx.get("protocol") or "").lower() != "torrent":
+                continue
+
+            fields = idx.get("fields")
+            ratio_limit = coerce_float_like(_get_field_value(fields, _INDEXER_FIELD_SEED_RATIO))
+            seeding_time_limit = coerce_int_like(
+                _get_field_value(fields, _INDEXER_FIELD_SEED_TIME_MINUTES)
+            )
+
+            settings: IndexerSeedSettings = {}
+            if ratio_limit is not None and ratio_limit > 0:
+                settings["ratio_limit"] = ratio_limit
+            if seeding_time_limit is not None and seeding_time_limit > 0:
+                settings["seeding_time_limit_minutes"] = seeding_time_limit
+
+            if settings:
+                settings_by_indexer[idx_id_int] = settings
+
+        return settings_by_indexer
+
     def get_enabled_indexers(self) -> list[dict[str, Any]]:
         """Get enabled indexers with book capability info."""
         indexers = self.get_indexers()

shelfmark/release_sources/prowlarr/handler.py

@@ -1,6 +1,6 @@
 """Prowlarr download handler - resolves releases and delegates lifecycle to shared clients."""
 
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, Any
 
 from shelfmark.core.config import config
 from shelfmark.core.logger import setup_logger
@@ -51,22 +51,11 @@ COMPLETED_PATH_RETRY_INTERVAL = _DEFAULT_COMPLETED_PATH_RETRY_INTERVAL
 COMPLETED_PATH_MAX_ATTEMPTS = _DEFAULT_COMPLETED_PATH_MAX_ATTEMPTS
 
 
-def _coerce_seed_time_minutes(raw_seed_time: object) -> int | None:
-    """Convert Prowlarr's minimum seed time from seconds to whole minutes."""
-    if raw_seed_time is None:
+def _coerce_positive_minutes(raw_minutes: object) -> int | None:
+    minutes = coerce_int_like(raw_minutes)
+    if minutes is None:
         return None
-
-    seed_time_seconds = coerce_int_like(raw_seed_time)
-    if seed_time_seconds is None:
-        logger.warning("Invalid Prowlarr minimumSeedTime value: %r", raw_seed_time)
-        return None
-
-    if seed_time_seconds < 0:
-        logger.warning("Ignoring negative Prowlarr minimumSeedTime value: %s", seed_time_seconds)
-        return None
-
-    # Round up so we never under-seed when a tracker uses a non-minute boundary.
-    return (seed_time_seconds + 59) // 60
+    return minutes if minutes > 0 else None
 
 
 @register_handler("prowlarr")
@@ -90,6 +79,22 @@ class ProwlarrHandler(ExternalClientHandler):
     def _completed_path_max_attempts(self) -> int:
         return COMPLETED_PATH_MAX_ATTEMPTS
 
+    def build_retry_resolution_fields(self, release_data: dict[str, Any]) -> dict[str, Any]:
+        source_id = normalize_optional_text(release_data.get("source_id"))
+        if source_id is None:
+            return {}
+
+        prowlarr_result = get_release(source_id)
+        if prowlarr_result is None:
+            return {}
+
+        return {
+            "retry_download_url": normalize_optional_text(
+                get_preferred_download_url(prowlarr_result)
+            ),
+            "retry_download_protocol": normalize_optional_text(get_protocol(prowlarr_result)),
+        }
+
     @classmethod
     def _restore_download_request_from_task(cls, task: DownloadTask) -> DownloadRequest | None:
         """Rebuild a DownloadRequest when the in-memory Prowlarr cache is gone."""
@@ -157,12 +162,14 @@ class ProwlarrHandler(ExternalClientHandler):
         release_name = prowlarr_result.get("title") or task.title or "Unknown"
         expected_hash = str(prowlarr_result.get("infoHash") or "").strip() or None
 
-        # Seed criteria from the indexer (Torznab attributes)
-        raw_seed_time = prowlarr_result.get("minimumSeedTime")
-        raw_ratio = prowlarr_result.get("minimumRatio")
+        seeding_time_limit = None
+        ratio_limit = None
+        if config.get("PROWLARR_USE_SEED_PREFERENCES", False):
+            raw_configured_seed_time = prowlarr_result.get("configuredSeedTimeMinutes")
+            raw_configured_ratio = prowlarr_result.get("configuredRatioLimit")
 
-        seeding_time_limit = _coerce_seed_time_minutes(raw_seed_time)
-        ratio_limit = float(raw_ratio) if raw_ratio is not None else None
+            seeding_time_limit = _coerce_positive_minutes(raw_configured_seed_time)
+            ratio_limit = float(raw_configured_ratio) if raw_configured_ratio is not None else None
 
         return DownloadRequest(
             url=download_url,

shelfmark/release_sources/prowlarr/settings.py

@@ -190,4 +190,11 @@ def prowlarr_config_settings() -> list[SettingsField]:
             description="Automatically retry search without category filtering if no results are found",
             show_when={"field": "PROWLARR_ENABLED", "value": True},
         ),
+        CheckboxField(
+            key="PROWLARR_USE_SEED_PREFERENCES",
+            label="Use Prowlarr seed preferences",
+            default=False,
+            description="Apply per-indexer seed time and ratio preferences from Prowlarr when sending torrents to the download client",
+            show_when={"field": "PROWLARR_ENABLED", "value": True},
+        ),
     ]

shelfmark/release_sources/prowlarr/source.py

@@ -27,12 +27,11 @@ from shelfmark.release_sources import (
     SortOption,
     register_source,
 )
-from shelfmark.release_sources.prowlarr.api import ProwlarrClient
+from shelfmark.release_sources.prowlarr.api import IndexerSeedSettings, ProwlarrClient
 from shelfmark.release_sources.prowlarr.cache import cache_release
 from shelfmark.release_sources.prowlarr.utils import (
     coerce_float_like,
     coerce_int_like,
-    get_preferred_download_url,
     get_protocol,
 )
 
@@ -407,7 +406,7 @@ def _prowlarr_result_to_release(
         language=language_detected,
         size=_parse_size(size_bytes),
         size_bytes=size_bytes,
-        download_url=get_preferred_download_url(result),
+        download_url=None,
         info_url=result.get("infoUrl") or result.get("guid"),
         protocol=(
             ReleaseProtocol.TORRENT
@@ -433,8 +432,8 @@ def _prowlarr_result_to_release(
             "freeleech": is_freeleech,
             "download_volume_factor": result.get("downloadVolumeFactor"),
             "upload_volume_factor": result.get("uploadVolumeFactor"),
-            "minimum_ratio": result.get("minimumRatio"),
-            "minimum_seed_time": result.get("minimumSeedTime"),
+            "configured_ratio_limit": result.get("configuredRatioLimit"),
+            "configured_seed_time_minutes": result.get("configuredSeedTimeMinutes"),
             "info_hash": result.get("infoHash"),
             "formats": formats or None,
             "formats_display": formats_display,
@@ -444,6 +443,27 @@ def _prowlarr_result_to_release(
     )
 
 
+def _apply_indexer_seed_settings(
+    result: dict,
+    indexer_seed_settings: dict[int, IndexerSeedSettings],
+) -> dict:
+    indexer_id = _coerce_indexer_id(result.get("indexerId"))
+    if indexer_id is None:
+        return result
+
+    seed_settings = indexer_seed_settings.get(indexer_id)
+    if not seed_settings:
+        return result
+
+    enriched_result = dict(result)
+    if "ratio_limit" in seed_settings:
+        enriched_result["configuredRatioLimit"] = seed_settings["ratio_limit"]
+    if "seeding_time_limit_minutes" in seed_settings:
+        enriched_result["configuredSeedTimeMinutes"] = seed_settings["seeding_time_limit_minutes"]
+
+    return enriched_result
+
+
 @register_source("prowlarr")
 class ProwlarrSource(ReleaseSource):
     """Prowlarr release source for ebooks and audiobooks."""
@@ -762,6 +782,11 @@ class ProwlarrSource(ReleaseSource):
             # Some indexers benefit from title+author queries and extra format detection.
             enriched_indexer_ids = client.get_enriched_indexer_ids(restrict_to=indexer_ids)
             enriched_indexer_ids_set = set(enriched_indexer_ids)
+            indexer_seed_settings = (
+                client.get_indexer_seed_settings(restrict_to=indexer_ids)
+                if config.get("PROWLARR_USE_SEED_PREFERENCES", False)
+                else {}
+            )
 
             def _check_timeout() -> None:
                 if time.monotonic() > deadline:
@@ -839,15 +864,18 @@ class ProwlarrSource(ReleaseSource):
             results: list[Release] = []
             enriched_source_ids: set[str] = set()
 
-            for r in all_results:
-                idx_id = r.get("indexerId")
+            for raw_result in all_results:
+                result_with_seed_settings = _apply_indexer_seed_settings(
+                    raw_result, indexer_seed_settings
+                )
+                idx_id = result_with_seed_settings.get("indexerId")
                 idx_id_int = _coerce_indexer_id(idx_id)
 
                 is_enriched = bool(
                     idx_id_int is not None and idx_id_int in enriched_indexer_ids_set
                 )
                 release = _prowlarr_result_to_release(
-                    r,
+                    result_with_seed_settings,
                     content_type,
                     enable_format_detection=is_enriched,
                 )

shelfmark/release_sources/prowlarr/torznab.py

@@ -140,9 +140,6 @@ def parse_torznab_xml(xml_text: str) -> list[dict[str, Any]]:
 
         download_volume_factor = _coerce_float(attrs.get("downloadvolumefactor"))
         upload_volume_factor = _coerce_float(attrs.get("uploadvolumefactor"))
-        minimum_ratio = _coerce_float(attrs.get("minimumratio"))
-        minimum_seed_time = _coerce_int(attrs.get("minimumseedtime"))
-
         cleaned_title = _strip_author_from_title(title, author)
 
         results.append(
@@ -168,8 +165,6 @@ def parse_torznab_xml(xml_text: str) -> list[dict[str, Any]]:
                 "bookTitle": book_title,
                 "downloadVolumeFactor": download_volume_factor,
                 "uploadVolumeFactor": upload_volume_factor,
-                "minimumRatio": minimum_ratio,
-                "minimumSeedTime": minimum_seed_time,
                 # Pass through all torznab attributes for tooltip display
                 "torznabAttrs": attrs,
             }

src/frontend/.oxlintrc.json

@@ -58,6 +58,7 @@
     "react/jsx-no-useless-fragment": "error",
     "react/self-closing-comp": "error",
     "typescript/switch-exhaustiveness-check": "error",
+    "jsx-a11y/prefer-tag-over-role": "off",
     "no-restricted-imports": [
       "error",
       {

src/frontend/package.json

@@ -18,23 +18,23 @@
   },
   "dependencies": {
     "@tailwindcss/vite": "^4.2.4",
-    "react": "^19.2.5",
-    "react-dom": "^19.2.5",
-    "react-router-dom": "^7.14.2",
+    "react": "^19.2.6",
+    "react-dom": "^19.2.6",
+    "react-router-dom": "^7.15.0",
     "socket.io-client": "^4.7.5"
   },
   "devDependencies": {
-    "@types/node": "^25.6.0",
+    "@types/node": "^25.6.2",
     "@types/react": "^19.2.14",
     "@types/react-dom": "^19.2.3",
     "@vitejs/plugin-react": "^6.0.1",
-    "knip": "^6.6.2",
-    "oxfmt": "^0.46.0",
-    "oxlint": "^1.61.0",
-    "oxlint-tsgolint": "^0.21.1",
+    "knip": "^6.12.1",
+    "oxfmt": "^0.48.0",
+    "oxlint": "^1.63.0",
+    "oxlint-tsgolint": "^0.22.1",
     "tailwindcss": "^4.2.2",
     "typescript": "^6.0.3",
-    "vite": "^8.0.10",
+    "vite": "^8.0.11",
     "vitest": "^4.1.5"
   }
 }

src/frontend/src/components/settings/customFields/OidcEnvInfo.tsx

@@ -18,6 +18,10 @@ export const OidcEnvInfo = (_props: CustomSettingsFieldRendererProps) => {
           {'    '}
           <span className="opacity-40"># Hide the local login form</span>
           {'\n'}
+          {'  '}- <span className="text-blue-400">DISABLE_LOCAL_AUTH</span>=
+          <span className="text-green-400">true</span>{' '}
+          <span className="opacity-40"># Disable username/password login</span>
+          {'\n'}
           {'  '}- <span className="text-blue-400">OIDC_AUTO_REDIRECT</span>=
           <span className="text-green-400">true</span>
           {'  '}

src/frontend/src/hooks/useSettings.ts

@@ -75,8 +75,8 @@ const hydrateSettingsResponse = (response: SettingsResponse): HydratedSettingsSt
   });
 
   const values = extractSettingsValues(tabs);
-  if (values.general && Object.prototype.hasOwnProperty.call(values.general, '_THEME')) {
-    values.general._THEME = getStoredThemePreference();
+  if (values.general && Object.prototype.hasOwnProperty.call(values.general, THEME_FIELD.key)) {
+    values.general[THEME_FIELD.key] = getStoredThemePreference();
   }
 
   return {
@@ -208,7 +208,7 @@ export function useSettings(): UseSettingsReturn {
 
   const updateValue = useCallback(
     (tabName: string, key: string, value: unknown) => {
-      if (key === '_THEME' && typeof value === 'string') {
+      if (key === THEME_FIELD.key && typeof value === 'string') {
         setThemePreference(value);
         setOriginalValues((prev) => ({
           ...prev,
@@ -277,7 +277,7 @@ export function useSettings(): UseSettingsReturn {
         if (tab) {
           for (const field of getValueBearingFields(tab.fields)) {
             if (field.fromEnv) continue; // Skip env-locked fields
-            if (field.key === '_THEME') continue; // Skip client-side only theme field
+            if (field.key === THEME_FIELD.key) continue; // Skip client-side only theme field
 
             const value = tabValues[field.key];
             const originalValue = originalTabValues[field.key];

src/frontend/src/tests/languageFilters.test.ts

@@ -4,7 +4,9 @@ import type { Language } from '../types/index';
 import {
   LANGUAGE_OPTION_ALL,
   LANGUAGE_OPTION_DEFAULT,
+  buildLanguageNormalizer,
   getReleaseSearchLanguageParams,
+  releaseLanguageMatchesFilter,
 } from '../utils/languageFilters';
 
 const supportedLanguages: Language[] = [
@@ -35,4 +37,33 @@ describe('languageFilters release search params', () => {
 
     expect(result).toEqual(['de', 'hu']);
   });
+
+  it('normalizes legacy default language names when combined with explicit filters', () => {
+    const result = getReleaseSearchLanguageParams(
+      [LANGUAGE_OPTION_DEFAULT, 'de'],
+      supportedLanguages,
+      ['english'],
+    );
+
+    expect(result).toEqual(['en', 'de']);
+  });
+});
+
+describe('releaseLanguageMatchesFilter', () => {
+  it('matches release language names against legacy default language names', () => {
+    const normalizer = buildLanguageNormalizer(supportedLanguages);
+
+    expect(releaseLanguageMatchesFilter('English', ['english'], normalizer)).toBe(true);
+  });
+
+  it('keeps English-only issue 948 fallback results with a legacy English default', () => {
+    const normalizer = buildLanguageNormalizer(supportedLanguages);
+    const issue948Languages = [...Array<string>(48).fill('en'), 'de, en', 'en, es'];
+
+    const visibleLanguages = issue948Languages.filter((language) =>
+      releaseLanguageMatchesFilter(language, ['english'], normalizer),
+    );
+
+    expect(visibleLanguages).toHaveLength(48);
+  });
 });

src/frontend/src/utils/basePath.ts

@@ -31,13 +31,13 @@ const resolveBasePath = (): string => {
 };
 
 // Lazy initialization to ensure DOM is ready when base path is resolved
-let _basePath: string | null = null;
+let cachedBasePath: string | null = null;
 
 export const getBasePath = (): string => {
-  if (_basePath === null) {
-    _basePath = normalizeBasePath(resolveBasePath());
+  if (cachedBasePath === null) {
+    cachedBasePath = normalizeBasePath(resolveBasePath());
   }
-  return _basePath;
+  return cachedBasePath;
 };
 
 export const withBasePath = (path: string): string => {

src/frontend/src/utils/languageFilters.ts

@@ -48,8 +48,11 @@ export const getLanguageFilterValues = (
     return null;
   }
 
-  const supportedCodes = new Set(supportedLanguages.map((lang) => lang.code));
-  const defaultCodes = defaultLanguageCodes.filter((code) => supportedCodes.has(code));
+  const languageNormalizer = buildLanguageNormalizer(supportedLanguages);
+  const supportedCodes = new Set(supportedLanguages.map((lang) => lang.code.toLowerCase()));
+  const defaultCodes = defaultLanguageCodes
+    .map((code) => languageNormalizer.get(code.toLowerCase()) ?? code.toLowerCase())
+    .filter((code) => supportedCodes.has(code));
   const resolved = new Set<string>();
 
   uniqueSelection.forEach((code) => {
@@ -58,8 +61,9 @@ export const getLanguageFilterValues = (
       return;
     }
 
-    if (supportedCodes.has(code)) {
-      resolved.add(code);
+    const normalizedCode = languageNormalizer.get(code.toLowerCase()) ?? code.toLowerCase();
+    if (supportedCodes.has(normalizedCode)) {
+      resolved.add(normalizedCode);
     }
   });
 
@@ -130,6 +134,11 @@ export const releaseLanguageMatchesFilter = (
     return part;
   });
 
-  const selectedSet = new Set(selectedCodes.map((c) => c.toLowerCase()));
+  const selectedSet = new Set(
+    selectedCodes.map((code) => {
+      const normalizedCode = code.toLowerCase();
+      return languageNormalizer?.get(normalizedCode) ?? normalizedCode;
+    }),
+  );
   return releaseCodes.every((code) => selectedSet.has(code));
 };

tests/audiobookbay/test_handler.py

@@ -120,6 +120,83 @@ class TestAudiobookBayHandlerDownload:
         )
         assert "resolving" in recorder.statuses
 
+    @patch("shelfmark.release_sources.audiobookbay.handler.scraper.extract_magnet_link")
+    @patch("shelfmark.release_sources.audiobookbay.handler.get_client")
+    @patch("shelfmark.release_sources.audiobookbay.handler.config.get")
+    def test_download_rejects_source_url_host_mismatch(
+        self, mock_config_get, mock_get_client, mock_extract_magnet
+    ):
+        """Test hostile detail URLs are rejected before page fetch."""
+        mock_config_get.side_effect = lambda key, default="": (
+            "audiobookbay.lu" if key == "ABB_HOSTNAME" else default
+        )
+
+        handler = AudiobookBayHandler()
+        task = DownloadTask(
+            task_id="35f56a3e5734bfa69c3169ee8e605a60",
+            source="audiobookbay",
+            title="Test Book",
+            content_type="audiobook",
+            source_url="https://169.254.169.254/latest/meta-data/",
+        )
+        cancel_flag = Event()
+        recorder = ProgressRecorder()
+
+        result = handler.download(
+            task=task,
+            cancel_flag=cancel_flag,
+            progress_callback=recorder.progress_callback,
+            status_callback=recorder.status_callback,
+        )
+
+        assert result is None
+        assert recorder.last_status == "error"
+        assert "details url" in recorder.last_message.lower()
+        mock_extract_magnet.assert_not_called()
+        mock_get_client.assert_not_called()
+
+    @patch("shelfmark.release_sources.audiobookbay.handler.scraper.extract_magnet_link")
+    @patch("shelfmark.release_sources.audiobookbay.handler.get_client")
+    @patch("shelfmark.release_sources.audiobookbay.handler.config.get")
+    def test_download_allows_configured_source_url_host(
+        self, mock_config_get, mock_get_client, mock_extract_magnet
+    ):
+        """Test configured ABB host remains allowed for queued release URLs."""
+        mock_config_get.side_effect = lambda key, default="": (
+            "https://audiobookbay.lu/" if key == "ABB_HOSTNAME" else default
+        )
+        mock_extract_magnet.return_value = "magnet:?xt=urn:btih:abc123"
+
+        mock_client = MagicMock()
+        mock_client.name = "qbittorrent"
+        mock_client.find_existing.return_value = None
+        mock_client.add_download.return_value = "download_id_123"
+        mock_get_client.return_value = mock_client
+
+        handler = AudiobookBayHandler()
+        task = DownloadTask(
+            task_id="35f56a3e5734bfa69c3169ee8e605a60",
+            source="audiobookbay",
+            title="Test Book",
+            content_type="audiobook",
+            source_url="https://audiobookbay.lu/abss/test-book/",
+        )
+        cancel_flag = Event()
+        recorder = ProgressRecorder()
+        with patch.object(AudiobookBayHandler, "_poll_and_complete", return_value=None):
+            result = handler.download(
+                task=task,
+                cancel_flag=cancel_flag,
+                progress_callback=recorder.progress_callback,
+                status_callback=recorder.status_callback,
+            )
+
+        assert result is None
+        mock_extract_magnet.assert_called_once_with(
+            "https://audiobookbay.lu/abss/test-book/", "audiobookbay.lu"
+        )
+        mock_client.add_download.assert_called_once()
+
     @patch("shelfmark.release_sources.audiobookbay.handler.scraper.extract_magnet_link")
     @patch("shelfmark.release_sources.audiobookbay.handler.get_client")
     def test_download_existing_complete(self, mock_get_client, mock_extract_magnet):

tests/config/test_entrypoint_permissions.py

@@ -10,6 +10,9 @@ from pathlib import Path
 ENTRYPOINT_PATH = Path(__file__).resolve().parents[2] / "entrypoint.sh"
 ENTRYPOINT_LOCK_PATH = Path("/tmp/shelfmark_entrypoint_test.lock")
 BASH_PATH = shutil.which("bash") or "/bin/bash"
+ID_PATH = shutil.which("id") or "/usr/bin/id"
+MKDIR_PATH = shutil.which("mkdir") or "/bin/mkdir"
+STAT_PATH = shutil.which("stat") or "/usr/bin/stat"
 
 
 @contextlib.contextmanager
@@ -55,6 +58,61 @@ exit 2
 printf '%s' "$HOME" > "$ENTRYPOINT_GUNICORN_HOME_FILE"
 printf '%s' "$*" > "$ENTRYPOINT_GUNICORN_ARGS_FILE"
 exit 0
+""",
+    )
+    _write_executable(
+        bin_dir / "id",
+        """#!/bin/sh
+if [ -n "${ENTRYPOINT_STUB_CURRENT_UID:-}" ]; then
+  if [ "$1" = "-u" ]; then
+    printf '%s\\n' "$ENTRYPOINT_STUB_CURRENT_UID"
+    exit 0
+  fi
+  if [ "$1" = "-g" ]; then
+    printf '%s\\n' "$ENTRYPOINT_STUB_CURRENT_GID"
+    exit 0
+  fi
+fi
+exec "$ENTRYPOINT_REAL_ID" "$@"
+""",
+    )
+    _write_executable(
+        bin_dir / "gosu",
+        """#!/bin/sh
+shift
+if [ "${ENTRYPOINT_STUB_GOSU_FAIL_WRITES:-false}" = "true" ] && [ "$1" = "sh" ] && [ "$2" = "-c" ]; then
+  exit 1
+fi
+exec "$@"
+""",
+    )
+    _write_executable(
+        bin_dir / "mkdir",
+        """#!/bin/sh
+for arg in "$@"; do
+  if [ "$arg" = "/var/log/shelfmark" ]; then
+    exit 0
+  fi
+done
+exec "$ENTRYPOINT_REAL_MKDIR" "$@"
+""",
+    )
+    _write_executable(
+        bin_dir / "stat",
+        """#!/bin/sh
+if [ "$1" = "-c" ]; then
+  if [ "$2" = "%u:%g" ]; then
+    printf '%s\\n' "${ENTRYPOINT_STUB_STAT_OWNER:-0:0}"
+    exit 0
+  fi
+fi
+exec "$ENTRYPOINT_REAL_STAT" "$@"
+""",
+    )
+    _write_executable(
+        bin_dir / "chown",
+        """#!/bin/sh
+exit 0
 """,
     )
 
@@ -65,6 +123,8 @@ def _run_entrypoint(
     tmp_path: Path,
     *,
     extra_env: dict[str, str] | None = None,
+    simulate_root_startup: bool = False,
+    fail_gosu_writes: bool = False,
     stub_home: Path | str | None = None,
 ) -> tuple[subprocess.CompletedProcess[str], Path, Path, Path]:
     runtime_home = tmp_path / "runtime-home"
@@ -86,6 +146,9 @@ def _run_entrypoint(
             "ENABLE_LOGGING": "false",
             "ENTRYPOINT_GUNICORN_ARGS_FILE": str(runtime_args_file),
             "ENTRYPOINT_GUNICORN_HOME_FILE": str(runtime_home_file),
+            "ENTRYPOINT_REAL_ID": ID_PATH,
+            "ENTRYPOINT_REAL_MKDIR": MKDIR_PATH,
+            "ENTRYPOINT_REAL_STAT": STAT_PATH,
             "ENTRYPOINT_STUB_GID": str(os.getgid()),
             "ENTRYPOINT_STUB_HOME": str(stub_home),
             "ENTRYPOINT_STUB_UID": str(os.getuid()),
@@ -99,6 +162,18 @@ def _run_entrypoint(
             "USING_EXTERNAL_BYPASSER": "true",
         }
     )
+    if simulate_root_startup:
+        env.update(
+            {
+                "ENTRYPOINT_STUB_CURRENT_GID": "0",
+                "ENTRYPOINT_STUB_CURRENT_UID": "0",
+                "ENTRYPOINT_STUB_STAT_OWNER": "0:0",
+                "PGID": str(os.getgid()),
+                "PUID": str(os.getuid()),
+            }
+        )
+    if fail_gosu_writes:
+        env["ENTRYPOINT_STUB_GOSU_FAIL_WRITES"] = "true"
     if extra_env:
         env.update(extra_env)
 
@@ -168,3 +243,17 @@ def test_entrypoint_non_root_mode_requires_writable_config_dir(tmp_path):
         f"Config directory is not writable in non-root mode: {readonly_config_dir}" in result.stdout
     )
     assert "Prepare ownership outside the container" in result.stdout
+
+
+def test_entrypoint_root_bootstrap_fails_closed_when_config_repair_fails(tmp_path):
+    result, _, _, _ = _run_entrypoint(
+        tmp_path,
+        simulate_root_startup=True,
+        fail_gosu_writes=True,
+    )
+
+    assert result.returncode == 1
+    assert "ERROR: Config directory is not writable!" in result.stdout
+    assert f"Configured runtime identity: {os.getuid()}:{os.getgid()}" in result.stdout
+    assert f"chown -R {os.getuid()}:{os.getgid()} /path/to/config" in result.stdout
+    assert "Startup mode: root" not in result.stdout

tests/config/test_security.py

@@ -381,6 +381,16 @@ class TestSecuritySettings:
         assert "inactive" in hint.label.lower()
         assert "local admin" in hint.label.lower()
 
+    def test_oidc_admin_requirement_hint_absent_when_local_auth_is_disabled(self):
+        """OIDC mode should not show the local-admin warning when local auth is disabled."""
+        from shelfmark.config.security import security_settings
+
+        with patch("shelfmark.config.env.DISABLE_LOCAL_AUTH", True):
+            fields = security_settings()
+
+        hint = next((f for f in fields if f.key == "oidc_admin_requirement"), None)
+        assert hint is None
+
     def test_builtin_option_label_is_local(self):
         """Builtin auth option should be labeled Local."""
         from shelfmark.config.security import security_settings
@@ -429,6 +439,28 @@ class TestSecurityOnSave:
         assert result["error"] is True
         assert "local admin" in result["message"].lower()
 
+    def test_on_save_allows_oidc_without_local_admin_when_local_auth_is_disabled(
+        self, tmp_path, monkeypatch
+    ):
+        from shelfmark.config.security import _on_save_security
+
+        _set_config_dir(monkeypatch, tmp_path)
+        UserDB(str(tmp_path / "users.db")).initialize()
+
+        with patch("shelfmark.config.security_handlers.DISABLE_LOCAL_AUTH", True):
+            result = _on_save_security(
+                {
+                    "AUTH_METHOD": "oidc",
+                    "OIDC_DISCOVERY_URL": (
+                        "https://auth.example.com/.well-known/openid-configuration"
+                    ),
+                    "OIDC_CLIENT_ID": "shelfmark",
+                    "OIDC_CLIENT_SECRET": "secret123",
+                }
+            )
+
+        assert result["error"] is False
+
     def test_on_save_blocks_oidc_when_client_id_is_missing(self, tmp_path, monkeypatch):
         from shelfmark.config.security import _on_save_security
 

tests/config/test_tor_script_rules.py

@@ -0,0 +1,65 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+TOR_SCRIPT_PATH = Path(__file__).resolve().parents[2] / "tor.sh"
+
+
+def _generated_tor_healthcheck_script() -> str:
+    script = TOR_SCRIPT_PATH.read_text()
+    start = script.index("cat <<'HC' > /app/tor_healthcheck.sh")
+    content_start = script.index("\n", start) + 1
+    content_end = script.index("\nHC", content_start)
+    return script[content_start:content_end]
+
+
+def _tor_script_rule_lines() -> list[str]:
+    return [
+        line.strip()
+        for line in TOR_SCRIPT_PATH.read_text().splitlines()
+        if line.strip().startswith("iptables ")
+    ]
+
+
+def _line_index(lines: list[str], needle: str) -> int:
+    return next(index for index, line in enumerate(lines) if needle in line)
+
+
+def test_tor_nat_rules_bypass_private_networks_before_tcp_redirect():
+    lines = _tor_script_rule_lines()
+    tcp_redirect_index = _line_index(lines, "--syn -j REDIRECT --to-ports 9040")
+
+    for cidr in ("127.0.0.0/8", "10.0.0.0/8", "172.16.0.0/12", "192.168.0.0/16"):
+        rule_index = _line_index(lines, f"-d {cidr} -j RETURN")
+        assert rule_index < tcp_redirect_index
+
+
+def test_tor_nat_rules_exempt_tor_process_before_dns_and_tcp_redirects():
+    lines = _tor_script_rule_lines()
+
+    owner_index = _line_index(lines, "-m owner --uid-owner")
+    udp_dns_index = _line_index(lines, "-p udp --dport 53")
+    tcp_dns_index = _line_index(lines, "-p tcp --dport 53")
+    tcp_redirect_index = _line_index(lines, "--syn -j REDIRECT --to-ports 9040")
+
+    assert owner_index < udp_dns_index
+    assert owner_index < tcp_dns_index
+    assert owner_index < tcp_redirect_index
+
+
+def test_tor_nat_rules_handle_dns_before_tcp_redirect():
+    lines = _tor_script_rule_lines()
+
+    tcp_redirect_index = _line_index(lines, "--syn -j REDIRECT --to-ports 9040")
+
+    assert _line_index(lines, "-p udp --dport 53") < tcp_redirect_index
+    assert _line_index(lines, "-p tcp --dport 53") < tcp_redirect_index
+
+
+def test_tor_healthcheck_uses_local_tor_state_without_clear_net_probe():
+    healthcheck_script = _generated_tor_healthcheck_script()
+
+    assert "google.com" not in healthcheck_script
+    assert "curl " not in healthcheck_script
+    assert "supervisorctl status tor" in healthcheck_script
+    assert "Bootstrapped 100%" in healthcheck_script

tests/core/test_auth_api.py

@@ -126,6 +126,21 @@ class TestLoginSemantics:
         assert response.status_code == 403
         assert response.get_json()["error"] == "Local authentication is disabled"
 
+    @pytest.mark.parametrize("auth_mode", ["builtin", "oidc"])
+    def test_login_rejects_password_auth_when_local_auth_is_disabled(
+        self, main_module, client, auth_mode
+    ):
+        with patch.object(main_module, "get_auth_mode", return_value=auth_mode):
+            with patch.object(main_module, "DISABLE_LOCAL_AUTH", True):
+                response = client.post(
+                    "/api/auth/login",
+                    json={"username": "alice", "password": "wrong", "remember_me": False},
+                )
+
+        assert response.status_code == 403
+        assert response.get_json()["error"] == "Local authentication is disabled"
+        assert main_module.failed_login_attempts == {}
+
     def test_auth_check_none_mode_reports_full_access(self, main_module, client):
         with patch.object(main_module, "get_auth_mode", return_value="none"):
             response = client.get("/api/auth/check")
@@ -138,6 +153,19 @@ class TestLoginSemantics:
             "is_admin": True,
         }
 
+    @pytest.mark.parametrize("auth_mode", ["builtin", "oidc"])
+    def test_auth_check_hides_local_auth_when_disabled(self, main_module, client, auth_mode):
+        with patch.object(main_module, "get_auth_mode", return_value=auth_mode):
+            with patch.object(main_module, "DISABLE_LOCAL_AUTH", True):
+                response = client.get("/api/auth/check")
+
+        assert response.status_code == 200
+        body = response.get_json()
+        assert body["auth_mode"] == auth_mode
+        assert body["auth_required"] is True
+        assert body["authenticated"] is False
+        assert body["hide_local_auth"] is True
+
     def test_auth_check_includes_display_name_for_authenticated_user(
         self, main_module, client, temp_user_db, monkeypatch
     ):

tests/core/test_cover_proxy_api.py

@@ -0,0 +1,28 @@
+"""Cover proxy API security tests."""
+
+from __future__ import annotations
+
+import importlib
+from unittest.mock import patch
+
+import pytest
+
+
+@pytest.fixture(scope="module")
+def main_module():
+    """Import `shelfmark.main` with background startup disabled."""
+    with patch("shelfmark.download.orchestrator.start"):
+        import shelfmark.main as main
+
+        importlib.reload(main)
+        return main
+
+
+def test_cover_proxy_requires_authentication(main_module) -> None:
+    client = main_module.app.test_client()
+
+    with patch.object(main_module, "get_auth_mode", return_value="builtin"):
+        response = client.get("/api/covers/test-id")
+
+    assert response.status_code == 401
+    assert response.get_json() == {"error": "Unauthorized"}

tests/core/test_download_api_guardrails.py

@@ -856,3 +856,204 @@ class TestStatusEndpointGuardrails:
 
         assert resp.status_code == 200
         assert observed["user_id"] is None
+
+
+class TestQueueManagementEndpointGuardrails:
+    def test_non_owner_cannot_set_priority(self, main_module, client):
+        owner = _create_user(main_module, prefix="owner")
+        actor = _create_user(main_module, prefix="actor")
+        _set_authenticated_session(
+            client,
+            user_id=actor["username"],
+            db_user_id=actor["id"],
+            is_admin=False,
+        )
+        task = DownloadTask(
+            task_id="owned-priority-1",
+            source="direct_download",
+            title="Owned Task",
+            user_id=owner["id"],
+            username=owner["username"],
+        )
+
+        with patch.object(main_module, "get_auth_mode", return_value="builtin"):
+            with patch.object(main_module.backend.book_queue, "get_task", return_value=task):
+                with patch.object(main_module.backend, "set_book_priority") as mock_set_priority:
+                    resp = client.put("/api/queue/owned-priority-1/priority", json={"priority": 1})
+
+        assert resp.status_code == 403
+        assert resp.get_json()["code"] == "download_not_owned"
+        mock_set_priority.assert_not_called()
+
+    def test_owner_can_set_priority(self, main_module, client):
+        user = _create_user(main_module, prefix="reader")
+        _set_authenticated_session(
+            client,
+            user_id=user["username"],
+            db_user_id=user["id"],
+            is_admin=False,
+        )
+        task = DownloadTask(
+            task_id="reader-priority-1",
+            source="direct_download",
+            title="Reader Task",
+            user_id=user["id"],
+            username=user["username"],
+        )
+
+        with patch.object(main_module, "get_auth_mode", return_value="builtin"):
+            with patch.object(main_module.backend.book_queue, "get_task", return_value=task):
+                with patch.object(
+                    main_module.backend, "set_book_priority", return_value=True
+                ) as mock_set_priority:
+                    resp = client.put("/api/queue/reader-priority-1/priority", json={"priority": 2})
+
+        assert resp.status_code == 200
+        assert resp.get_json() == {
+            "status": "updated",
+            "book_id": "reader-priority-1",
+            "priority": 2,
+        }
+        mock_set_priority.assert_called_once_with("reader-priority-1", 2)
+
+    def test_non_owner_cannot_reorder_other_users_task(self, main_module, client):
+        owner = _create_user(main_module, prefix="owner")
+        actor = _create_user(main_module, prefix="actor")
+        _set_authenticated_session(
+            client,
+            user_id=actor["username"],
+            db_user_id=actor["id"],
+            is_admin=False,
+        )
+        owned_task = DownloadTask(
+            task_id="actor-reorder-1",
+            source="direct_download",
+            title="Actor Task",
+            user_id=actor["id"],
+            username=actor["username"],
+        )
+        other_task = DownloadTask(
+            task_id="owner-reorder-1",
+            source="direct_download",
+            title="Owner Task",
+            user_id=owner["id"],
+            username=owner["username"],
+        )
+
+        def fake_get_task(task_id):
+            return {
+                "actor-reorder-1": owned_task,
+                "owner-reorder-1": other_task,
+            }.get(task_id)
+
+        with patch.object(main_module, "get_auth_mode", return_value="builtin"):
+            with patch.object(
+                main_module.backend.book_queue, "get_task", side_effect=fake_get_task
+            ):
+                with patch.object(main_module.backend, "reorder_queue") as mock_reorder:
+                    resp = client.post(
+                        "/api/queue/reorder",
+                        json={
+                            "book_priorities": {
+                                "actor-reorder-1": 1,
+                                "owner-reorder-1": 0,
+                            }
+                        },
+                    )
+
+        assert resp.status_code == 403
+        assert resp.get_json()["code"] == "download_not_owned"
+        mock_reorder.assert_not_called()
+
+    def test_non_admin_queue_order_is_scoped_to_owned_tasks(self, main_module, client):
+        user = _create_user(main_module, prefix="reader")
+        other = _create_user(main_module, prefix="other")
+        _set_authenticated_session(
+            client,
+            user_id=user["username"],
+            db_user_id=user["id"],
+            is_admin=False,
+        )
+        user_task = DownloadTask(
+            task_id="reader-order-1",
+            source="direct_download",
+            title="Reader Task",
+            user_id=user["id"],
+            username=user["username"],
+        )
+        other_task = DownloadTask(
+            task_id="other-order-1",
+            source="direct_download",
+            title="Other Task",
+            user_id=other["id"],
+            username=other["username"],
+        )
+
+        def fake_get_task(task_id):
+            return {
+                "reader-order-1": user_task,
+                "other-order-1": other_task,
+            }.get(task_id)
+
+        with patch.object(main_module, "get_auth_mode", return_value="builtin"):
+            with patch.object(
+                main_module.backend,
+                "get_queue_order",
+                return_value=[
+                    {"id": "reader-order-1", "title": "Reader Task", "priority": 0},
+                    {"id": "other-order-1", "title": "Other Task", "priority": 1},
+                ],
+            ):
+                with patch.object(
+                    main_module.backend.book_queue, "get_task", side_effect=fake_get_task
+                ):
+                    resp = client.get("/api/queue/order")
+
+        assert resp.status_code == 200
+        assert resp.get_json()["queue"] == [
+            {"id": "reader-order-1", "title": "Reader Task", "priority": 0}
+        ]
+
+    def test_non_admin_active_downloads_are_scoped_to_owned_tasks(self, main_module, client):
+        user = _create_user(main_module, prefix="reader")
+        other = _create_user(main_module, prefix="other")
+        _set_authenticated_session(
+            client,
+            user_id=user["username"],
+            db_user_id=user["id"],
+            is_admin=False,
+        )
+        user_task = DownloadTask(
+            task_id="reader-active-1",
+            source="direct_download",
+            title="Reader Task",
+            user_id=user["id"],
+            username=user["username"],
+        )
+        other_task = DownloadTask(
+            task_id="other-active-1",
+            source="direct_download",
+            title="Other Task",
+            user_id=other["id"],
+            username=other["username"],
+        )
+
+        def fake_get_task(task_id):
+            return {
+                "reader-active-1": user_task,
+                "other-active-1": other_task,
+            }.get(task_id)
+
+        with patch.object(main_module, "get_auth_mode", return_value="builtin"):
+            with patch.object(
+                main_module.backend,
+                "get_active_downloads",
+                return_value=["reader-active-1", "other-active-1"],
+            ):
+                with patch.object(
+                    main_module.backend.book_queue, "get_task", side_effect=fake_get_task
+                ):
+                    resp = client.get("/api/downloads/active")
+
+        assert resp.status_code == 200
+        assert resp.get_json() == {"active_downloads": ["reader-active-1"]}

tests/core/test_download_processing.py

@@ -240,6 +240,26 @@ class TestAtomicCopy:
         assert result.exists()
         assert result.read_text() == "content"
 
+    def test_copy_falls_back_when_copy2_hits_fuse_eio(self, tmp_path):
+        """Fall back to content copy when FUSE rejects xattr metadata reads."""
+        import errno
+
+        from shelfmark.download.fs import atomic_copy as _atomic_copy
+
+        source = tmp_path / "source.txt"
+        source.write_text("content")
+        dest = tmp_path / "dest.txt"
+
+        with patch(
+            "shelfmark.download.fs.shutil.copy2",
+            side_effect=OSError(errno.EIO, "Input/output error"),
+        ):
+            result = _atomic_copy(source, dest)
+
+        assert result == dest
+        assert result.exists()
+        assert result.read_text() == "content"
+
     def test_copy_tolerates_post_publish_estale(self, tmp_path, monkeypatch):
         """Treat ESTALE on the final destination as a successful NFS publish."""
         import errno

tests/core/test_hardlink.py

@@ -28,7 +28,6 @@ def _run_organize_post_process(
     task,
     library: Path,
     hardlink_enabled: bool = True,
-    same_fs: bool = True,
 ):
     from shelfmark.download.postprocess.router import (
         post_process_download as _post_process_download,
@@ -37,10 +36,7 @@ def _run_organize_post_process(
     status_cb = MagicMock()
     cancel_flag = Event()
 
-    with (
-        patch("shelfmark.core.config.config") as mock_config,
-        patch("shelfmark.download.postprocess.transfer.same_filesystem", return_value=same_fs),
-    ):
+    with patch("shelfmark.core.config.config") as mock_config:
         mock_config.CUSTOM_SCRIPT = None
         mock_config.get = MagicMock(
             side_effect=lambda key, default=None, **_kwargs: {
@@ -407,6 +403,32 @@ class TestAtomicMove:
         assert mock_copy.called
         assert mock_fallback.called
 
+    def test_cross_filesystem_move_falls_back_when_copy2_hits_fuse_eio(self, tmp_path, monkeypatch):
+        """Falls back to content copy when FUSE rejects xattr metadata reads."""
+        import errno
+
+        from shelfmark.download.fs import atomic_move as _atomic_move
+
+        source = tmp_path / "source.txt"
+        source.write_text("content")
+        dest = tmp_path / "dest.txt"
+
+        def _raise_exdev(*_args, **_kwargs):
+            raise OSError(errno.EXDEV, "Cross-device link")
+
+        monkeypatch.setattr(os, "rename", _raise_exdev)
+
+        with patch(
+            "shelfmark.download.fs.shutil.copy2",
+            side_effect=OSError(errno.EIO, "Input/output error"),
+        ):
+            result = _atomic_move(source, dest)
+
+        assert result == dest
+        assert not source.exists()
+        assert dest.exists()
+        assert dest.read_text() == "content"
+
     def test_cross_filesystem_move_recovers_when_metadata_step_hits_enoent(
         self, tmp_path, monkeypatch
     ):
@@ -696,7 +718,6 @@ class TestHardlinkDecisionLogic:
             task=sample_task,
             library=library,
             hardlink_enabled=True,
-            same_fs=True,
         )
 
         assert result is not None
@@ -750,6 +771,29 @@ class TestHardlinkDecisionLogic:
         assert result is not None
         assert not staged.exists()
 
+    def test_non_prowlarr_torrent_with_original_path_can_hardlink(self, tmp_path, sample_task):
+        """Torrent-backed sources such as AudiobookBay can hardlink client files."""
+        library = tmp_path / "library"
+        library.mkdir()
+        source = tmp_path / "downloads" / "book.m4b"
+        source.parent.mkdir()
+        source.write_bytes(b"content")
+
+        sample_task.source = "audiobookbay"
+        sample_task.content_type = "audiobook"
+        sample_task.format = "m4b"
+        sample_task.original_download_path = str(source)
+
+        result, _ = _run_organize_post_process(
+            temp_file=source,
+            task=sample_task,
+            library=library,
+            hardlink_enabled=True,
+        )
+
+        assert result is not None
+        assert Path(result).stat().st_ino == source.stat().st_ino
+
 
 class TestHardlinkInodeVerification:
     """Tests that verify hardlinks share the same inode."""
@@ -1321,7 +1365,7 @@ class TestTorrentSourceCleanupProtection:
         from shelfmark.download.postprocess.pipeline import transfer_file_to_library
 
         # Simulate by directly calling transfer_file_to_library with use_hardlink=False
-        # (this is what happens after same_filesystem check fails)
+        # (this is what happens when hardlinking is disabled before transfer)
         downloads = tmp_path / "downloads"
         downloads.mkdir()
         torrent_file = downloads / "book.epub"

tests/core/test_image_cache.py

@@ -5,15 +5,67 @@ import requests
 from shelfmark.core.image_cache import ImageCacheService
 
 
+def test_fetch_and_cache_rejects_backslash_authority_bypass_before_request(
+    tmp_path, monkeypatch
+) -> None:
+    cache = ImageCacheService(tmp_path)
+    calls = []
+
+    def fake_get(url, **_kwargs):
+        calls.append(url)
+        raise AssertionError("unsafe URL should not be requested")
+
+    monkeypatch.setattr("shelfmark.core.image_cache.requests.get", fake_get)
+
+    assert cache.fetch_and_cache("cover-ssrf", "http://127.0.0.1:6666\\@1.1.1.1") is None
+    assert calls == []
+    assert "cover-ssrf" not in cache._index
+
+
+def test_is_safe_url_rejects_encoded_separator_in_authority() -> None:
+    assert ImageCacheService._is_safe_url("http://127.0.0.1:6666%5c@1.1.1.1") is False
+    assert ImageCacheService._is_safe_url("http://127.0.0.1:6666%2f@1.1.1.1") is False
+
+
 def test_is_safe_url_rejects_invalid_ipv6_url() -> None:
     assert ImageCacheService._is_safe_url("http://[") is False
 
 
+def test_fetch_and_cache_blocks_unsafe_redirect(tmp_path, monkeypatch) -> None:
+    cache = ImageCacheService(tmp_path)
+
+    def fake_getaddrinfo(hostname, *_args, **_kwargs):
+        addresses = {
+            "example.com": "93.184.216.34",
+            "127.0.0.1": "127.0.0.1",
+        }
+        return [(None, None, None, None, (addresses[hostname], 0))]
+
+    class RedirectResponse:
+        is_redirect = True
+        headers = {"location": "http://127.0.0.1/cover.jpg"}
+
+        def close(self):
+            return None
+
+    calls = []
+
+    def fake_get(url, **_kwargs):
+        calls.append(url)
+        return RedirectResponse()
+
+    monkeypatch.setattr("shelfmark.core.image_cache.socket.getaddrinfo", fake_getaddrinfo)
+    monkeypatch.setattr("shelfmark.core.image_cache.requests.get", fake_get)
+
+    assert cache.fetch_and_cache("cover-redirect", "https://example.com/cover.jpg") is None
+    assert calls == ["https://example.com/cover.jpg"]
+    assert "cover-redirect" not in cache._index
+
+
 def test_fetch_and_cache_returns_none_on_request_exception(tmp_path, monkeypatch) -> None:
     cache = ImageCacheService(tmp_path)
-    monkeypatch.setattr(cache, "_is_safe_url", lambda _url: True)
 
-    def fake_get(*args, **kwargs):
+    def fake_get(*_args, **_kwargs):
         raise requests.exceptions.TooManyRedirects("too many redirects")
 
     monkeypatch.setattr("shelfmark.core.image_cache.requests.get", fake_get)

tests/core/test_oidc_integration.py

@@ -2,6 +2,8 @@
 
 import sqlite3
 
+import pytest
+
 from shelfmark.core.auth_modes import (
     determine_auth_mode,
     get_auth_check_admin_status,
@@ -63,6 +65,31 @@ class TestDetermineAuthMode:
         }
         assert determine_auth_mode(config, cwa_db_path=None, has_local_admin=False) == "none"
 
+    @pytest.mark.parametrize(
+        ("auth_mode", "config"),
+        [
+            ("builtin", {"AUTH_METHOD": "builtin"}),
+            (
+                "oidc",
+                {
+                    "AUTH_METHOD": "oidc",
+                    "OIDC_DISCOVERY_URL": "https://auth.example.com/.well-known/openid-configuration",
+                    "OIDC_CLIENT_ID": "shelfmark",
+                },
+            ),
+        ],
+    )
+    def test_disable_local_auth_keeps_configured_mode_without_admin(self, auth_mode, config):
+        assert (
+            determine_auth_mode(
+                config,
+                cwa_db_path=None,
+                has_local_admin=False,
+                disable_local_auth=True,
+            )
+            == auth_mode
+        )
+
     def test_load_active_auth_mode_reads_env_backed_cwa_setting(self, monkeypatch, tmp_path):
         from shelfmark.core.config import config as app_config
 

tests/core/test_oidc_routes.py

@@ -445,6 +445,7 @@ class TestOIDCCallbackEndpoint:
             "userinfo": {
                 "sub": "oidc-alice-sub",
                 "email": "alice@example.com",
+                "email_verified": True,
                 "preferred_username": "alice_oidc",
                 "groups": [],
             }
@@ -548,6 +549,7 @@ class TestOIDCCallbackEndpoint:
             "userinfo": {
                 "sub": "oidc-new-sub",
                 "email": "shared@example.com",
+                "email_verified": True,
                 "preferred_username": "oidcuser",
                 "groups": [],
             }
@@ -574,6 +576,7 @@ class TestOIDCCallbackEndpoint:
             "userinfo": {
                 "sub": "oidc-nomatch",
                 "email": "different@example.com",
+                "email_verified": True,
                 "preferred_username": "newuser",
                 "groups": [],
             }
@@ -589,6 +592,60 @@ class TestOIDCCallbackEndpoint:
         original = user_db.get_user(username="existing")
         assert original["oidc_subject"] is None
 
+    @patch("shelfmark.core.oidc_routes._get_oidc_client")
+    def test_callback_does_not_link_with_unverified_email(self, mock_get_client, client, user_db):
+        """OIDC login should not link by email when email_verified is false."""
+        user_db.create_user(username="existing", email="shared@example.com", password_hash="hash")
+
+        fake_client = Mock()
+        fake_client.authorize_access_token.return_value = {
+            "userinfo": {
+                "sub": "oidc-unverified",
+                "email": "shared@example.com",
+                "email_verified": False,
+                "preferred_username": "attackeruser",
+                "groups": [],
+            }
+        }
+        mock_get_client.return_value = (fake_client, MOCK_OIDC_CONFIG)
+
+        resp = client.get("/api/auth/oidc/callback?code=abc123&state=test-state")
+        assert resp.status_code == 302
+
+        with client.session_transaction() as sess:
+            assert sess["user_id"] == "attackeruser"
+
+        original = user_db.get_user(username="existing")
+        assert original["oidc_subject"] is None
+
+    @patch("shelfmark.core.oidc_routes._get_oidc_client")
+    def test_callback_rejects_unverified_email_link_when_no_provision(
+        self, mock_get_client, client, user_db
+    ):
+        """OIDC login should not link by unverified email when creation is disabled."""
+        config = {**MOCK_OIDC_CONFIG, "OIDC_AUTO_PROVISION": False}
+        user_db.create_user(username="existing", email="shared@example.com", password_hash="hash")
+
+        fake_client = Mock()
+        fake_client.authorize_access_token.return_value = {
+            "userinfo": {
+                "sub": "oidc-unverified-no-provision",
+                "email": "shared@example.com",
+                "email_verified": False,
+                "preferred_username": "attackeruser",
+                "groups": [],
+            }
+        }
+        mock_get_client.return_value = (fake_client, config)
+
+        resp = client.get("/api/auth/oidc/callback?code=abc123&state=test-state")
+        error = _get_oidc_error(resp)
+        assert error is not None
+        assert "Account not found" in error
+
+        original = user_db.get_user(username="existing")
+        assert original["oidc_subject"] is None
+
     @patch("shelfmark.core.oidc_routes._get_oidc_client")
     def test_callback_no_email_link_when_oidc_has_no_email(self, mock_get_client, client, user_db):
         """OIDC login without email in claims should not attempt email linking."""

tests/core/test_path_mappings.py

@@ -0,0 +1,59 @@
+from shelfmark.core.path_mappings import (
+    RemotePathMapping,
+    remap_remote_to_local_with_match,
+)
+
+
+def test_remap_rejects_parent_directory_remainder(tmp_path):
+    mapping = RemotePathMapping(
+        host="qbittorrent",
+        remote_path="/remote/downloads",
+        local_path=str(tmp_path / "local" / "downloads"),
+    )
+    remote_path = "/remote/downloads/../outside/book.epub"
+
+    remapped, matched = remap_remote_to_local_with_match(
+        mappings=[mapping],
+        host="qbittorrent",
+        remote_path=remote_path,
+    )
+
+    assert matched is True
+    assert remapped is None
+
+
+def test_remap_rejects_path_that_resolves_outside_local_prefix(tmp_path):
+    local_prefix = tmp_path / "local" / "downloads"
+    mapping = RemotePathMapping(
+        host="qbittorrent",
+        remote_path="/remote/downloads",
+        local_path=str(local_prefix),
+    )
+    remote_path = "/remote/downloads/subdir/../../outside/book.epub"
+
+    remapped, matched = remap_remote_to_local_with_match(
+        mappings=[mapping],
+        host="qbittorrent",
+        remote_path=remote_path,
+    )
+
+    assert matched is True
+    assert remapped is None
+
+
+def test_remap_allows_normal_child_path_under_local_prefix(tmp_path):
+    local_prefix = tmp_path / "local" / "downloads"
+    mapping = RemotePathMapping(
+        host="qbittorrent",
+        remote_path="/remote/downloads",
+        local_path=str(local_prefix),
+    )
+
+    remapped, matched = remap_remote_to_local_with_match(
+        mappings=[mapping],
+        host="qbittorrent",
+        remote_path="/remote/downloads/author/book.epub",
+    )
+
+    assert matched is True
+    assert remapped == local_prefix / "author" / "book.epub"

tests/core/test_processing_integration.py

@@ -1,7 +1,9 @@
 """Integration tests for real filesystem processing flows."""
 
+import errno
 import os
 import zipfile
+from contextlib import nullcontext
 from pathlib import Path
 from threading import Event
 from unittest.mock import MagicMock, patch
@@ -46,6 +48,15 @@ def _sync_config(mock_config, mock_core):
     mock_core.CUSTOM_SCRIPT = mock_config.CUSTOM_SCRIPT
 
 
+def _hardlink_support_patch(supported: bool):
+    if supported:
+        return nullcontext()
+    return patch(
+        "shelfmark.download.fs.os.link",
+        side_effect=OSError(errno.EXDEV, "Invalid cross-device link"),
+    )
+
+
 def test_direct_download_rename_moves_file(tmp_path):
     from shelfmark.download.postprocess.router import (
         post_process_download as _post_process_download,
@@ -366,7 +377,7 @@ def test_torrent_hardlink_enabled_copy_fallback_does_not_extract_archives(tmp_pa
     with (
         patch("shelfmark.core.config.config") as mock_config,
         patch("shelfmark.config.env.TMP_DIR", staging),
-        patch("shelfmark.download.postprocess.transfer.same_filesystem", return_value=False),
+        _hardlink_support_patch(False),
     ):
         mock_config.get = _build_config(ingest, organization="none", hardlink=True)
         mock_config.CUSTOM_SCRIPT = None
@@ -385,7 +396,7 @@ def test_torrent_hardlink_enabled_copy_fallback_does_not_extract_archives(tmp_pa
     # Most importantly: hardlink-setting-enabled fallback to copy should NOT extract.
     assert list(ingest.glob("*.epub")) == []
 
-    assert any(msg.startswith("Copying") for _, msg in statuses)
+    assert any(msg.startswith("Hardlinking") for _, msg in statuses)
 
 
 def test_torrent_hardlink_enabled_copy_fallback_directory_archive_kept_when_zip_supported(tmp_path):
@@ -422,7 +433,7 @@ def test_torrent_hardlink_enabled_copy_fallback_directory_archive_kept_when_zip_
     with (
         patch("shelfmark.core.config.config") as mock_config,
         patch("shelfmark.config.env.TMP_DIR", staging),
-        patch("shelfmark.download.postprocess.transfer.same_filesystem", return_value=False),
+        _hardlink_support_patch(False),
     ):
         mock_config.get = _build_config(
             ingest,
@@ -1028,20 +1039,20 @@ def test_postprocess_folder_blackbox_matrix(
 @pytest.mark.parametrize("content_kind", ["book", "audiobook"])
 @pytest.mark.parametrize("organization", ["none", "organize"])
 @pytest.mark.parametrize("hardlink_enabled", [False, True])
-@pytest.mark.parametrize("same_filesystem", [True, False])
+@pytest.mark.parametrize("hardlink_supported", [True, False])
 def test_postprocess_torrent_blackbox_matrix(
     tmp_path,
     input_kind: str,
     content_kind: str,
     organization: str,
     hardlink_enabled: bool,
-    same_filesystem: bool,
+    hardlink_supported: bool,
 ):
     """Torrent-like (original_download_path set) black-box test matrix.
 
     This exercises:
     - hardlink enabled/disabled
-    - same-filesystem hardlink vs copy fallback
+    - successful hardlink vs copy fallback
     - content type differences (book vs audiobook)
 
     Assertions focus on invariants:
@@ -1087,7 +1098,7 @@ def test_postprocess_torrent_blackbox_matrix(
         source_file.write_text("content")
 
     task = DownloadTask(
-        task_id=f"torrent-matrix-{input_kind}-{content_kind}-{organization}-{hardlink_enabled}-{same_filesystem}",
+        task_id=f"torrent-matrix-{input_kind}-{content_kind}-{organization}-{hardlink_enabled}-{hardlink_supported}",
         source="prowlarr",
         title=title,
         author=author,
@@ -1100,9 +1111,7 @@ def test_postprocess_torrent_blackbox_matrix(
     with (
         patch("shelfmark.core.config.config") as mock_config,
         patch("shelfmark.config.env.TMP_DIR", staging),
-        patch(
-            "shelfmark.download.postprocess.transfer.same_filesystem", return_value=same_filesystem
-        ),
+        _hardlink_support_patch(hardlink_supported),
     ):
         mock_config.get = _build_config(
             ingest,
@@ -1131,8 +1140,8 @@ def test_postprocess_torrent_blackbox_matrix(
         assert result_path.parent == ingest
         assert result_path.name == f"random.{extension}"
 
-    # Hardlink only when enabled and same filesystem.
-    if hardlink_enabled and same_filesystem:
+    # Hardlink only when enabled and supported by the filesystem.
+    if hardlink_enabled and hardlink_supported:
         assert os.stat(source_file).st_ino == os.stat(result_path).st_ino
     else:
         assert os.stat(source_file).st_ino != os.stat(result_path).st_ino

tests/core/test_request_routes_api.py

@@ -354,6 +354,166 @@ class TestRequestRoutes:
         mock_notify_admin.assert_not_called()
         mock_notify_user.assert_not_called()
 
+    def test_download_policy_rejects_mismatched_context_and_release_source(
+        self, main_module, client
+    ):
+        user = _create_user(main_module, prefix="reader")
+        _set_session(client, user_id=user["username"], db_user_id=user["id"], is_admin=False)
+        policy = _policy(
+            default_ebook="download",
+            rules=[{"source": "direct_download", "content_type": "*", "mode": "blocked"}],
+        )
+
+        payload = {
+            "book_data": {
+                "title": "Policy Source Mismatch",
+                "author": "Shelfmark",
+                "content_type": "ebook",
+                "provider": "openlibrary",
+                "provider_id": "policy-source-mismatch-1",
+            },
+            "context": {
+                "source": "prowlarr",
+                "content_type": "ebook",
+                "request_level": "release",
+            },
+            "release_data": {
+                "source": "direct_download",
+                "source_id": "blocked-release-1",
+                "title": "Blocked Release.epub",
+            },
+        }
+
+        with patch.object(main_module, "get_auth_mode", return_value="builtin"):
+            with patch.object(
+                main_module, "load_users_request_policy_settings", return_value=policy
+            ):
+                with patch(
+                    "shelfmark.core.request_routes.load_users_request_policy_settings",
+                    return_value=policy,
+                ):
+                    with patch.object(main_module.backend, "queue_release") as mock_queue:
+                        resp = client.post("/api/requests", json=payload)
+
+        assert resp.status_code == 400
+        assert resp.json["code"] == "policy_source_mismatch"
+        assert resp.json["error"] == "Policy context source must match release_data.source"
+        assert main_module.user_db.list_requests(user_id=user["id"]) == []
+        mock_queue.assert_not_called()
+
+    def test_release_result_source_rejects_mismatch_before_normalization(self, main_module, client):
+        user = _create_user(main_module, prefix="reader")
+        _set_session(client, user_id=user["username"], db_user_id=user["id"], is_admin=False)
+        policy = _policy(
+            default_ebook="download",
+            rules=[{"source": "prowlarr", "content_type": "*", "mode": "blocked"}],
+        )
+
+        payload = {
+            "book_data": {
+                "title": "Release Result Source Mismatch",
+                "author": "Shelfmark",
+                "content_type": "ebook",
+                "provider": "openlibrary",
+                "provider_id": "release-result-mismatch-1",
+            },
+            "context": {
+                "source": "direct_download",
+                "content_type": "ebook",
+                "request_level": "release",
+            },
+            "release_data": {
+                "source": "prowlarr",
+                "source_id": "blocked-prowlarr-release-1",
+                "title": "Blocked Prowlarr Release.epub",
+            },
+        }
+
+        with patch.object(main_module, "get_auth_mode", return_value="builtin"):
+            with patch.object(
+                main_module, "load_users_request_policy_settings", return_value=policy
+            ):
+                with patch(
+                    "shelfmark.core.request_routes.load_users_request_policy_settings",
+                    return_value=policy,
+                ):
+                    with patch.object(main_module.backend, "queue_release") as mock_queue:
+                        resp = client.post("/api/requests", json=payload)
+
+        assert resp.status_code == 400
+        assert resp.json["code"] == "policy_source_mismatch"
+        assert resp.json["error"] == "Policy context source must match release_data.source"
+        assert main_module.user_db.list_requests(user_id=user["id"]) == []
+        mock_queue.assert_not_called()
+
+    def test_batch_rejects_release_result_source_mismatch_before_creating_any_requests(
+        self, main_module, client
+    ):
+        user = _create_user(main_module, prefix="reader")
+        _set_session(client, user_id=user["username"], db_user_id=user["id"], is_admin=False)
+        policy = _policy(
+            default_ebook="request_release",
+            rules=[{"source": "prowlarr", "content_type": "*", "mode": "blocked"}],
+        )
+
+        payloads = [
+            {
+                "book_data": {
+                    "title": "Batch Valid Direct",
+                    "author": "Shelfmark",
+                    "content_type": "ebook",
+                    "provider": "openlibrary",
+                    "provider_id": "batch-valid-direct-1",
+                },
+                "context": {
+                    "source": "direct_download",
+                    "content_type": "ebook",
+                    "request_level": "release",
+                },
+                "release_data": {
+                    "source": "direct_download",
+                    "source_id": "batch-valid-direct-release-1",
+                    "title": "Batch Valid Direct.epub",
+                },
+            },
+            {
+                "book_data": {
+                    "title": "Batch Release Result Mismatch",
+                    "author": "Shelfmark",
+                    "content_type": "ebook",
+                    "provider": "openlibrary",
+                    "provider_id": "batch-release-result-mismatch-1",
+                },
+                "context": {
+                    "source": "direct_download",
+                    "content_type": "ebook",
+                    "request_level": "release",
+                },
+                "release_data": {
+                    "source": "prowlarr",
+                    "source_id": "batch-blocked-prowlarr-release-1",
+                    "title": "Batch Blocked Prowlarr.epub",
+                },
+            },
+        ]
+
+        with patch.object(main_module, "get_auth_mode", return_value="builtin"):
+            with patch.object(
+                main_module, "load_users_request_policy_settings", return_value=policy
+            ):
+                with patch(
+                    "shelfmark.core.request_routes.load_users_request_policy_settings",
+                    return_value=policy,
+                ):
+                    with patch.object(main_module.backend, "queue_release") as mock_queue:
+                        resp = client.post("/api/requests/batch", json={"requests": payloads})
+
+        assert resp.status_code == 400
+        assert resp.json["code"] == "policy_source_mismatch"
+        assert resp.json["error"] == "Policy context source must match release_data.source"
+        assert main_module.user_db.list_requests(user_id=user["id"]) == []
+        mock_queue.assert_not_called()
+
     def test_batch_download_policy_queues_releases_without_creating_requests(
         self, main_module, client
     ):
@@ -1532,6 +1692,12 @@ class TestRequestRoutes:
     def test_admin_fulfil_uses_real_queue_and_preserves_requesting_identity(
         self, main_module, client
     ):
+        class AvailableSource:
+            display_name = "Direct Download"
+
+            def is_available(self):
+                return True
+
         user = _create_user(main_module, prefix="reader")
         other_user = _create_user(main_module, prefix="reader")
         admin = _create_user(main_module, prefix="admin", role="admin")
@@ -1567,13 +1733,23 @@ class TestRequestRoutes:
                     "shelfmark.core.request_routes.load_users_request_policy_settings",
                     return_value=policy,
                 ):
-                    create_resp = client.post("/api/requests", json=create_payload)
-                    request_id = create_resp.json["id"]
+                    with patch.object(
+                        main_module.backend,
+                        "get_source",
+                        return_value=AvailableSource(),
+                    ):
+                        create_resp = client.post("/api/requests", json=create_payload)
+                        request_id = create_resp.json["id"]
 
-                    _set_session(
-                        client, user_id=admin["username"], db_user_id=admin["id"], is_admin=True
-                    )
-                    fulfil_resp = client.post(f"/api/admin/requests/{request_id}/fulfil", json={})
+                        _set_session(
+                            client,
+                            user_id=admin["username"],
+                            db_user_id=admin["id"],
+                            is_admin=True,
+                        )
+                        fulfil_resp = client.post(
+                            f"/api/admin/requests/{request_id}/fulfil", json={}
+                        )
 
         assert fulfil_resp.status_code == 200
         assert fulfil_resp.json["status"] == "fulfilled"

tests/download/test_archive_extraction.py

@@ -0,0 +1,78 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+from shelfmark.download import archive as archive_mod
+
+
+class _FakeZipInfo:
+    filename = "book.epub"
+    flag_bits = 0
+
+    def is_dir(self) -> bool:
+        return False
+
+
+class _ChunkOnlyStream:
+    def __init__(self, content: bytes) -> None:
+        self._content = content
+        self._offset = 0
+        self.whole_read_called = False
+
+    def __enter__(self) -> _ChunkOnlyStream:
+        return self
+
+    def __exit__(self, *_args: object) -> None:
+        return None
+
+    def read(self, size: int = -1) -> bytes:
+        if size < 0:
+            self.whole_read_called = True
+            msg = "archive member was read into memory"
+            raise AssertionError(msg)
+
+        chunk = self._content[self._offset : self._offset + size]
+        self._offset += len(chunk)
+        return chunk
+
+
+class _FakeZipFile:
+    stream: _ChunkOnlyStream
+
+    def __init__(self, _path: Path, _mode: str) -> None:
+        self.stream = _ChunkOnlyStream(b"streamed archive content")
+
+    def __enter__(self) -> _FakeZipFile:
+        return self
+
+    def __exit__(self, *_args: object) -> None:
+        return None
+
+    def infolist(self) -> list[_FakeZipInfo]:
+        return [_FakeZipInfo()]
+
+    def testzip(self) -> None:
+        return None
+
+    def open(self, _info: _FakeZipInfo) -> _ChunkOnlyStream:
+        return self.stream
+
+
+def test_extract_archive_raw_streams_members_without_whole_read(
+    tmp_path: Path, monkeypatch
+) -> None:
+    fake_archives: list[_FakeZipFile] = []
+
+    def fake_zip_file(path: Path, mode: str) -> _FakeZipFile:
+        archive = _FakeZipFile(path, mode)
+        fake_archives.append(archive)
+        return archive
+
+    monkeypatch.setattr(archive_mod.zipfile, "ZipFile", fake_zip_file)
+
+    extracted_files, warnings = archive_mod.extract_archive_raw(tmp_path / "book.zip", tmp_path)
+
+    assert warnings == []
+    assert [path.name for path in extracted_files] == ["book.epub"]
+    assert extracted_files[0].read_bytes() == b"streamed archive content"
+    assert fake_archives[0].stream.whole_read_called is False

tests/download/test_orchestrator_retry.py

@@ -4,10 +4,26 @@ from pathlib import Path
 from threading import Event
 from unittest.mock import MagicMock
 
+import pytest
+
 from shelfmark.core.models import DownloadTask, QueueStatus
 from shelfmark.core.queue import BookQueue
 
 
+class _AvailableSource:
+    display_name = "Test Source"
+
+    def is_available(self):
+        return True
+
+
+@pytest.fixture(autouse=True)
+def source_available_by_default(monkeypatch):
+    import shelfmark.download.orchestrator as orchestrator
+
+    monkeypatch.setattr(orchestrator, "get_source", lambda _source: _AvailableSource())
+
+
 def test_retry_download_requeues_error_task(monkeypatch):
     import shelfmark.download.orchestrator as orchestrator
 

tests/download/test_orchestrator_user_output_mode.py

@@ -1,6 +1,40 @@
+from threading import Event
 from unittest.mock import MagicMock
 
-from shelfmark.core.models import SearchMode
+import pytest
+
+from shelfmark.core.models import DownloadTask, SearchMode
+
+
+class _AvailableSource:
+    display_name = "Test Source"
+
+    def is_available(self):
+        return True
+
+
+class _UnavailableSource:
+    display_name = "Direct Download"
+
+    def is_available(self):
+        return False
+
+
+@pytest.fixture(autouse=True)
+def source_available_by_default(monkeypatch):
+    import shelfmark.download.orchestrator as orchestrator
+
+    monkeypatch.setattr(orchestrator, "get_source", lambda _source: _AvailableSource())
+
+
+def enable_prowlarr_seed_preferences(monkeypatch, orchestrator):
+    monkeypatch.setattr(
+        orchestrator.config,
+        "get",
+        lambda key, default=None, user_id=None: (
+            True if key == "PROWLARR_USE_SEED_PREFERENCES" else default
+        ),
+    )
 
 
 def test_queue_release_uses_user_specific_books_output_mode(monkeypatch):
@@ -76,6 +110,28 @@ def test_queue_release_preserves_direct_search_mode_from_payload(monkeypatch):
     assert captured["task"].search_mode == SearchMode.DIRECT
 
 
+def test_queue_release_rejects_unavailable_source(monkeypatch):
+    import shelfmark.download.orchestrator as orchestrator
+
+    monkeypatch.setattr(orchestrator, "get_source", lambda _source: _UnavailableSource())
+    monkeypatch.setattr(orchestrator.book_queue, "add", MagicMock())
+
+    success, error = orchestrator.queue_release(
+        {
+            "source": "direct_download",
+            "source_id": "release-disabled-direct",
+            "title": "Disabled Direct Release",
+            "content_type": "ebook",
+        },
+        user_id=42,
+        username="alice",
+    )
+
+    assert success is False
+    assert error == "Direct Download is unavailable. Enable and configure the source in Settings."
+    orchestrator.book_queue.add.assert_not_called()
+
+
 def test_queue_release_email_mode_without_recipient_is_queued(monkeypatch):
     import shelfmark.download.orchestrator as orchestrator
 
@@ -114,6 +170,41 @@ def test_queue_release_email_mode_without_recipient_is_queued(monkeypatch):
     assert task.output_args == {}
 
 
+def test_download_task_rejects_unavailable_source_before_handler(monkeypatch):
+    import shelfmark.download.orchestrator as orchestrator
+
+    task = DownloadTask(
+        task_id="disabled-task",
+        source="direct_download",
+        title="Disabled Direct Release",
+    )
+    status_messages: list[tuple[str, str]] = []
+
+    monkeypatch.setattr(orchestrator, "get_source", lambda _source: _UnavailableSource())
+    monkeypatch.setattr(orchestrator, "get_handler", MagicMock())
+    monkeypatch.setattr(orchestrator.book_queue, "get_task", lambda _task_id: task)
+    monkeypatch.setattr(
+        orchestrator.book_queue,
+        "update_status_message",
+        lambda task_id, message: status_messages.append((task_id, message)),
+    )
+
+    result = orchestrator._download_task("disabled-task", Event())
+
+    assert result is None
+    assert task.last_error_type == "SourceUnavailable"
+    assert task.last_error_message == (
+        "Direct Download is unavailable. Enable and configure the source in Settings."
+    )
+    assert status_messages == [
+        (
+            "disabled-task",
+            "Direct Download is unavailable. Enable and configure the source in Settings.",
+        )
+    ]
+    orchestrator.get_handler.assert_not_called()
+
+
 def test_queue_release_persists_generic_retry_resolution_fields(monkeypatch):
     import shelfmark.download.orchestrator as orchestrator
 
@@ -125,6 +216,7 @@ def test_queue_release_persists_generic_retry_resolution_fields(monkeypatch):
 
     monkeypatch.setattr(orchestrator.book_queue, "add", fake_add)
     monkeypatch.setattr(orchestrator, "ws_manager", None)
+    enable_prowlarr_seed_preferences(monkeypatch, orchestrator)
 
     success, error = orchestrator.queue_release(
         {
@@ -135,8 +227,8 @@ def test_queue_release_persists_generic_retry_resolution_fields(monkeypatch):
             "protocol": "torrent",
             "indexer": "MyIndexer",
             "extra": {
-                "minimum_ratio": 1.25,
-                "minimum_seed_time": 5400,
+                "configured_ratio_limit": 1.25,
+                "configured_seed_time_minutes": 90,
                 "info_hash": "ABC123",
             },
         },
@@ -156,6 +248,114 @@ def test_queue_release_persists_generic_retry_resolution_fields(monkeypatch):
     assert task.can_retry_without_staged_source is True
 
 
+def test_queue_release_prefers_configured_seed_time_minutes_for_retry(monkeypatch):
+    import shelfmark.download.orchestrator as orchestrator
+
+    captured: dict[str, object] = {}
+
+    def fake_add(task):
+        captured["task"] = task
+        return True
+
+    monkeypatch.setattr(orchestrator.book_queue, "add", fake_add)
+    monkeypatch.setattr(orchestrator, "ws_manager", None)
+    enable_prowlarr_seed_preferences(monkeypatch, orchestrator)
+
+    success, error = orchestrator.queue_release(
+        {
+            "source": "prowlarr",
+            "source_id": "prowlarr-release-configured-seed-time",
+            "title": "Queued Prowlarr Release",
+            "download_url": "magnet:?xt=urn:btih:abc123",
+            "protocol": "torrent",
+            "extra": {
+                "configured_ratio_limit": 2,
+                "configured_seed_time_minutes": 7200,
+                "minimum_ratio": 1,
+                "minimum_seed_time": 259200,
+            },
+        },
+        user_id=42,
+        username="alice",
+    )
+
+    assert success is True
+    assert error is None
+    task = captured["task"]
+    assert task.retry_ratio_limit == 2.0
+    assert task.retry_seeding_time_limit_minutes == 7200
+
+
+def test_queue_release_ignores_configured_seed_time_when_disabled_for_retry(monkeypatch):
+    import shelfmark.download.orchestrator as orchestrator
+
+    captured: dict[str, object] = {}
+
+    def fake_add(task):
+        captured["task"] = task
+        return True
+
+    monkeypatch.setattr(orchestrator.book_queue, "add", fake_add)
+    monkeypatch.setattr(orchestrator, "ws_manager", None)
+
+    success, error = orchestrator.queue_release(
+        {
+            "source": "prowlarr",
+            "source_id": "prowlarr-release-configured-seed-time-disabled",
+            "title": "Queued Prowlarr Release",
+            "download_url": "magnet:?xt=urn:btih:abc123",
+            "protocol": "torrent",
+            "extra": {
+                "configured_ratio_limit": 2,
+                "configured_seed_time_minutes": 7200,
+            },
+        },
+        user_id=42,
+        username="alice",
+    )
+
+    assert success is True
+    assert error is None
+    task = captured["task"]
+    assert task.retry_ratio_limit is None
+    assert task.retry_seeding_time_limit_minutes is None
+
+
+def test_queue_release_ignores_torznab_minimum_seed_criteria_for_retry(monkeypatch):
+    import shelfmark.download.orchestrator as orchestrator
+
+    captured: dict[str, object] = {}
+
+    def fake_add(task):
+        captured["task"] = task
+        return True
+
+    monkeypatch.setattr(orchestrator.book_queue, "add", fake_add)
+    monkeypatch.setattr(orchestrator, "ws_manager", None)
+
+    success, error = orchestrator.queue_release(
+        {
+            "source": "prowlarr",
+            "source_id": "prowlarr-release-minimum-only",
+            "title": "Queued Prowlarr Release",
+            "download_url": "magnet:?xt=urn:btih:abc123",
+            "protocol": "torrent",
+            "extra": {
+                "minimum_ratio": 1,
+                "minimum_seed_time": 259200,
+            },
+        },
+        user_id=42,
+        username="alice",
+    )
+
+    assert success is True
+    assert error is None
+    task = captured["task"]
+    assert task.retry_ratio_limit is None
+    assert task.retry_seeding_time_limit_minutes is None
+
+
 def test_queue_release_returns_error_for_operational_queue_failure(monkeypatch):
     import shelfmark.download.orchestrator as orchestrator
 

tests/irc/test_client_dcc_security.py

@@ -0,0 +1,84 @@
+from ipaddress import IPv4Address
+
+from shelfmark.release_sources.irc.client import IRCClient, IRCEvent, IRCMessage
+
+
+def _dcc_raw(sender: str, filename: str, ip: str, port: int = 443) -> str:
+    ip_int = int(IPv4Address(ip))
+    return f':{sender}!user@example.test PRIVMSG reader :\x01DCC SEND "{filename}" {ip_int} {port} 1\x01'
+
+
+def test_wait_for_dcc_ignores_unexpected_sender(monkeypatch) -> None:
+    client = IRCClient(nick="reader", server="irc.example.test", port=6697)
+    client.online_servers = {"BookBot"}
+
+    messages = [
+        IRCMessage(
+            raw=_dcc_raw("Mallory", "evil.epub", "8.8.8.8"),
+            prefix="Mallory!user@example.test",
+            event=IRCEvent.BOOK_RESULT,
+        ),
+        IRCMessage(
+            raw=_dcc_raw("BookBot", "book.epub", "8.8.8.8"),
+            prefix="BookBot!user@example.test",
+            event=IRCEvent.BOOK_RESULT,
+        ),
+    ]
+    monkeypatch.setattr(client, "read_messages", lambda: iter(messages))
+
+    offer = client.wait_for_dcc(timeout=1.0, result_type=False)
+
+    assert offer is not None
+    assert offer.filename == "book.epub"
+
+
+def test_wait_for_dcc_uses_expected_sender_over_online_server_list(monkeypatch) -> None:
+    client = IRCClient(nick="reader", server="irc.example.test", port=6697)
+    client.online_servers = {"OtherBot"}
+
+    messages = [
+        IRCMessage(
+            raw=_dcc_raw("BookBot", "book.epub", "8.8.8.8"),
+            prefix="BookBot!user@example.test",
+            event=IRCEvent.BOOK_RESULT,
+        )
+    ]
+    monkeypatch.setattr(client, "read_messages", lambda: iter(messages))
+
+    offer = client.wait_for_dcc(
+        timeout=1.0,
+        result_type=False,
+        expected_senders={"BookBot"},
+    )
+
+    assert offer is not None
+    assert offer.filename == "book.epub"
+
+
+def test_wait_for_dcc_ignores_unsafe_offer_and_keeps_waiting(monkeypatch) -> None:
+    client = IRCClient(nick="reader", server="irc.example.test", port=6697)
+    client.online_servers = {"BookBot"}
+
+    messages = [
+        IRCMessage(
+            raw=_dcc_raw("BookBot", "../outside.epub", "8.8.8.8"),
+            prefix="BookBot!user@example.test",
+            event=IRCEvent.BOOK_RESULT,
+        ),
+        IRCMessage(
+            raw=_dcc_raw("BookBot", "internal.epub", "127.0.0.1"),
+            prefix="BookBot!user@example.test",
+            event=IRCEvent.BOOK_RESULT,
+        ),
+        IRCMessage(
+            raw=_dcc_raw("BookBot", "book.epub", "8.8.8.8"),
+            prefix="BookBot!user@example.test",
+            event=IRCEvent.BOOK_RESULT,
+        ),
+    ]
+    monkeypatch.setattr(client, "read_messages", lambda: iter(messages))
+
+    offer = client.wait_for_dcc(timeout=1.0, result_type=False)
+
+    assert offer is not None
+    assert offer.filename == "book.epub"

tests/irc/test_dcc_security.py

@@ -0,0 +1,82 @@
+import socket
+
+import pytest
+
+from shelfmark.release_sources.irc.dcc import (
+    DCCOffer,
+    DCCParseError,
+    DCCSecurityError,
+    download_dcc,
+    parse_dcc_send,
+    safe_dcc_filename,
+    validate_dcc_endpoint,
+)
+
+
+def test_safe_dcc_filename_allows_plain_filenames() -> None:
+    assert safe_dcc_filename("results.txt") == "results.txt"
+    assert safe_dcc_filename("Author - Title.epub") == "Author - Title.epub"
+
+
+@pytest.mark.parametrize(
+    "filename",
+    [
+        "",
+        ".",
+        "..",
+        "../outside.txt",
+        "/tmp/outside.txt",
+        r"..\outside.txt",
+        r"C:\temp\outside.txt",
+    ],
+)
+def test_safe_dcc_filename_rejects_paths(filename: str) -> None:
+    with pytest.raises(DCCSecurityError):
+        safe_dcc_filename(filename)
+
+
+@pytest.mark.parametrize(
+    "ip",
+    [
+        "127.0.0.1",
+        "10.0.0.1",
+        "172.16.0.1",
+        "192.168.1.1",
+        "169.254.169.254",
+        "0.0.0.0",
+    ],
+)
+def test_validate_dcc_endpoint_rejects_non_public_ips(ip: str) -> None:
+    with pytest.raises(DCCSecurityError):
+        validate_dcc_endpoint(DCCOffer(filename="book.epub", ip=ip, port=1234, size=1))
+
+
+@pytest.mark.parametrize("port", [0, 65536])
+def test_validate_dcc_endpoint_rejects_invalid_ports(port: int) -> None:
+    with pytest.raises(DCCSecurityError):
+        validate_dcc_endpoint(DCCOffer(filename="book.epub", ip="8.8.8.8", port=port, size=1))
+
+
+def test_validate_dcc_endpoint_allows_public_endpoint() -> None:
+    validate_dcc_endpoint(DCCOffer(filename="book.epub", ip="8.8.8.8", port=443, size=1))
+
+
+def test_parse_dcc_send_rejects_out_of_range_ip_integer() -> None:
+    with pytest.raises(DCCParseError):
+        parse_dcc_send('DCC SEND "book.epub" 999999999999999999 443 1')
+
+
+def test_download_dcc_rejects_private_endpoint_before_socket_connect(
+    monkeypatch,
+    tmp_path,
+) -> None:
+    def fail_socket(*_args: object, **_kwargs: object) -> socket.socket:
+        raise AssertionError("download should reject the endpoint before opening a socket")
+
+    monkeypatch.setattr(socket, "socket", fail_socket)
+
+    with pytest.raises(DCCSecurityError):
+        download_dcc(
+            DCCOffer(filename="book.epub", ip="127.0.0.1", port=1234, size=1),
+            tmp_path / "book.epub",
+        )

tests/metadata/test_googlebooks_parse.py

@@ -1,6 +1,59 @@
+import requests
+
+from shelfmark.core.cache import get_metadata_cache
+from shelfmark.metadata_providers import MetadataSearchOptions
 from shelfmark.metadata_providers.googlebooks import GoogleBooksProvider
 
 
+class _GoogleBooksResponse:
+    def __init__(self, payload):
+        self._payload = payload
+
+    def raise_for_status(self):
+        return None
+
+    def json(self):
+        return self._payload
+
+
+class _FlakyGoogleBooksSession:
+    def __init__(self):
+        self.calls = 0
+
+    def get(self, *args, **kwargs):
+        self.calls += 1
+        if self.calls == 1:
+            raise requests.Timeout
+        return _GoogleBooksResponse(
+            {
+                "items": [
+                    {
+                        "id": "volume-1",
+                        "volumeInfo": {
+                            "title": "Recovered Book",
+                            "authors": ["Alice Author"],
+                        },
+                    }
+                ]
+            }
+        )
+
+
+def test_googlebooks_search_does_not_cache_request_failures():
+    get_metadata_cache().clear()
+    provider = GoogleBooksProvider(api_key="test-key")
+    session = _FlakyGoogleBooksSession()
+    provider.session = session
+    options = MetadataSearchOptions(query="Recovered Book")
+
+    assert provider.search(options) == []
+
+    result = provider.search(options)
+
+    assert session.calls == 2
+    assert [book.title for book in result] == ["Recovered Book"]
+
+
 class TestGoogleBooksParseVolume:
     def test_parse_volume_returns_metadata_for_valid_payload(self):
         provider = GoogleBooksProvider(api_key="test-key")

tests/newznab/test_handler.py

@@ -96,6 +96,28 @@ class TestGetDownloadUrl:
 
 
 class TestHandlerErrors:
+    def test_cache_miss_uses_persisted_retry_fields(self):
+        with patch("shelfmark.release_sources.newznab.handler.get_release", return_value=None):
+            handler = NewznabHandler()
+            task = DownloadTask(
+                task_id="retryable",
+                source="newznab",
+                title="Book",
+                retry_download_url="https://indexer.example.com/nzb/42?apikey=secret",
+                retry_download_protocol="usenet",
+                retry_release_name="Book Release",
+                retry_expected_hash="abc123",
+            )
+            recorder = ProgressRecorder()
+            result = handler._resolve_download(task, recorder.status_callback)
+
+        assert result is not None
+        assert result.url == "https://indexer.example.com/nzb/42?apikey=secret"
+        assert result.protocol == "usenet"
+        assert result.release_name == "Book Release"
+        assert result.expected_hash == "abc123"
+        assert recorder.status_updates == []
+
     def test_cache_miss_returns_error(self):
         with patch("shelfmark.release_sources.newznab.handler.get_release", return_value=None):
             handler = NewznabHandler()

tests/newznab/test_source.py

@@ -2,6 +2,8 @@
 
 from unittest.mock import MagicMock
 
+import pytest
+
 from shelfmark.core.search_plan import ReleaseSearchPlan, ReleaseSearchVariant
 from shelfmark.metadata_providers import BookMetadata
 from shelfmark.release_sources import ReleaseProtocol
@@ -13,6 +15,20 @@ from shelfmark.release_sources.newznab.source import (
 # ── fixtures / helpers ─────────────────────────────────────────────────────────
 
 
+class _AvailableSource:
+    display_name = "Newznab"
+
+    def is_available(self):
+        return True
+
+
+@pytest.fixture(autouse=True)
+def source_available_by_default(monkeypatch):
+    import shelfmark.download.orchestrator as orchestrator
+
+    monkeypatch.setattr(orchestrator, "get_source", lambda _source: _AvailableSource())
+
+
 def _make_book(**kwargs) -> BookMetadata:
     defaults = {
         "provider": "hardcover",
@@ -60,7 +76,7 @@ class TestResultToRelease:
         assert r.size_bytes == 2097152
         assert r.indexer == "MyIndexer"
         assert r.source_id == "https://indexer.example.com/nzb/42"
-        assert r.download_url == "https://indexer.example.com/nzb/42?apikey=secret"
+        assert r.download_url is None
 
     def test_torrent_result_has_torrent_protocol(self):
         r = _newznab_result_to_release(
@@ -134,6 +150,33 @@ class TestResultToRelease:
         assert r.extra["book_title"] == "Dune"
         assert r.extra["info_hash"] == "abc123"
 
+    def test_redacted_result_still_builds_private_retry_payload(self, monkeypatch):
+        import shelfmark.download.orchestrator as orchestrator
+
+        secret_download_url = "https://indexer.example.com/nzb/42?apikey=secret"
+        release = _newznab_result_to_release(_make_result(downloadUrl=secret_download_url))
+
+        assert release.download_url is None
+
+        captured_tasks = []
+
+        def fake_add(task):
+            captured_tasks.append(task)
+            return True
+
+        monkeypatch.setattr(orchestrator.book_queue, "add", fake_add)
+        monkeypatch.setattr(
+            orchestrator.config, "get", lambda key, default=None, user_id=None: default
+        )
+
+        success, error = orchestrator.queue_release(release.__dict__)
+
+        assert success is True
+        assert error is None
+        assert captured_tasks[0].retry_download_url == secret_download_url
+        assert captured_tasks[0].retry_download_protocol == "usenet"
+        assert "retry_download_url" not in orchestrator._task_to_dict(captured_tasks[0])
+
 
 # ── NewznabSource.is_available ─────────────────────────────────────────────────
 

tests/prowlarr/test_handler.py

@@ -236,7 +236,7 @@ class TestProwlarrHandlerDownloadErrors:
 class TestProwlarrHandlerSeedCriteria:
     """Tests for seed criteria passed through from Prowlarr."""
 
-    def test_resolve_download_converts_seed_time_seconds_to_minutes(self):
+    def test_resolve_download_ignores_torznab_minimum_seed_criteria(self):
         with patch(
             "shelfmark.release_sources.prowlarr.handler.get_release",
             return_value={
@@ -257,22 +257,28 @@ class TestProwlarrHandlerSeedCriteria:
             request = handler._resolve_download(task, lambda *_: None)
 
             assert request is not None
-            assert request.seeding_time_limit == 4320
-            assert request.ratio_limit == 1.0
+            assert request.seeding_time_limit is None
+            assert request.ratio_limit is None
 
-    def test_resolve_download_rounds_seed_time_up_to_next_minute(self):
-        with patch(
-            "shelfmark.release_sources.prowlarr.handler.get_release",
-            return_value={
-                "protocol": "torrent",
-                "title": "Test Release",
-                "magnetUrl": "magnet:?xt=urn:btih:abc123",
-                "minimumSeedTime": 61,
-            },
+    def test_resolve_download_uses_configured_seed_time_minutes(self):
+        with (
+            patch(
+                "shelfmark.release_sources.prowlarr.handler.get_release",
+                return_value={
+                    "protocol": "torrent",
+                    "title": "Test Release",
+                    "magnetUrl": "magnet:?xt=urn:btih:abc123",
+                    "configuredSeedTimeMinutes": 7200,
+                    "configuredRatioLimit": 2,
+                    "minimumSeedTime": 259200,
+                    "minimumRatio": 1,
+                },
+            ),
+            patch("shelfmark.release_sources.prowlarr.handler.config.get", return_value=True),
         ):
             handler = ProwlarrHandler()
             task = DownloadTask(
-                task_id="seed-time-round-up",
+                task_id="configured-seed-time",
                 source="prowlarr",
                 title="Test Book",
             )
@@ -280,7 +286,35 @@ class TestProwlarrHandlerSeedCriteria:
             request = handler._resolve_download(task, lambda *_: None)
 
             assert request is not None
-            assert request.seeding_time_limit == 2
+            assert request.seeding_time_limit == 7200
+            assert request.ratio_limit == 2.0
+
+    def test_resolve_download_ignores_configured_seed_time_when_disabled(self):
+        with (
+            patch(
+                "shelfmark.release_sources.prowlarr.handler.get_release",
+                return_value={
+                    "protocol": "torrent",
+                    "title": "Test Release",
+                    "magnetUrl": "magnet:?xt=urn:btih:abc123",
+                    "configuredSeedTimeMinutes": 7200,
+                    "configuredRatioLimit": 2,
+                },
+            ),
+            patch("shelfmark.release_sources.prowlarr.handler.config.get", return_value=False),
+        ):
+            handler = ProwlarrHandler()
+            task = DownloadTask(
+                task_id="configured-seed-time-disabled",
+                source="prowlarr",
+                title="Test Book",
+            )
+
+            request = handler._resolve_download(task, lambda *_: None)
+
+            assert request is not None
+            assert request.seeding_time_limit is None
+            assert request.ratio_limit is None
 
     def test_download_passes_seed_limits_to_client(self):
         mock_client = MagicMock()
@@ -295,8 +329,10 @@ class TestProwlarrHandlerSeedCriteria:
                     "protocol": "torrent",
                     "title": "Test Release",
                     "magnetUrl": "magnet:?xt=urn:btih:abc123",
+                    "configuredSeedTimeMinutes": 7200,
+                    "configuredRatioLimit": 1.25,
                     "minimumSeedTime": 259200,
-                    "minimumRatio": 1.25,
+                    "minimumRatio": 1,
                 },
             ),
             patch(
@@ -306,6 +342,7 @@ class TestProwlarrHandlerSeedCriteria:
             patch(
                 "shelfmark.release_sources.prowlarr.handler.remove_release",
             ),
+            patch("shelfmark.release_sources.prowlarr.handler.config.get", return_value=True),
             patch.object(
                 ProwlarrHandler,
                 "_poll_and_complete",
@@ -329,7 +366,7 @@ class TestProwlarrHandlerSeedCriteria:
             )
 
             call_kwargs = mock_client.add_download.call_args.kwargs
-            assert call_kwargs["seeding_time_limit"] == 4320
+            assert call_kwargs["seeding_time_limit"] == 7200
             assert call_kwargs["ratio_limit"] == 1.25
 
 

tests/prowlarr/test_qbittorrent_client.py

@@ -406,6 +406,158 @@ class TestQBittorrentClientGetStatus:
             assert status.complete is True
             assert status.file_path == "/downloads/Some Torrent"
 
+    @pytest.mark.parametrize(
+        "file_name",
+        ["/escape/book.epub", "../escape/book.epub", "C:\\escape\\book.epub"],
+    )
+    def test_get_status_falls_back_after_unsafe_derived_file_path(self, monkeypatch, file_name):
+        """Unsafe file-derived paths do not block the safe legacy fallback."""
+        config_values = {
+            "QBITTORRENT_URL": "http://localhost:8080",
+            "QBITTORRENT_USERNAME": "admin",
+            "QBITTORRENT_PASSWORD": "password",
+            "QBITTORRENT_CATEGORY": "test",
+        }
+        monkeypatch.setattr(
+            "shelfmark.download.clients.qbittorrent.config.get",
+            lambda key, default="": config_values.get(key, default),
+        )
+
+        mock_torrent = MockTorrent(
+            hash_val="abc123",
+            progress=1.0,
+            state="uploading",
+            content_path="/downloads",
+            name="Some Torrent",
+        )
+        info_payload = mock_torrent.to_dict() | {"save_path": "/downloads"}
+
+        def response(kind: str):
+            r = MagicMock()
+            r.status_code = 200
+            r.raise_for_status = MagicMock()
+            if kind == "info":
+                r.json.return_value = [info_payload]
+            elif kind == "properties":
+                r.json.return_value = {"save_path": "/downloads"}
+            elif kind == "files":
+                r.json.return_value = [{"name": file_name}]
+            else:
+                raise AssertionError("unknown")
+            return r
+
+        mock_client_instance = MagicMock()
+
+        def get_side_effect(url, params=None, timeout=None):
+            if url.endswith("/api/v2/torrents/info"):
+                return response("info")
+            if url.endswith("/api/v2/torrents/properties"):
+                return response("properties")
+            if url.endswith("/api/v2/torrents/files"):
+                return response("files")
+            raise AssertionError(f"unexpected url: {url}")
+
+        mock_client_instance._session.get.side_effect = get_side_effect
+        mock_client_class = MagicMock(return_value=mock_client_instance)
+
+        with patch.dict("sys.modules", {"qbittorrentapi": MagicMock(Client=mock_client_class)}):
+            import importlib
+
+            import shelfmark.download.clients.qbittorrent as qb_module
+
+            importlib.reload(qb_module)
+
+            client = qb_module.QBittorrentClient()
+            status = client.get_status("abc123")
+            path = client.get_download_path("abc123")
+
+            assert status.complete is True
+            assert status.file_path == "/downloads/Some Torrent"
+            assert path == "/downloads/Some Torrent"
+
+    @pytest.mark.parametrize("torrent_name", ["/escape", "../escape", "C:\\escape"])
+    def test_get_status_rejects_unsafe_legacy_name_path(self, monkeypatch, torrent_name):
+        """Legacy save_path/name fallback must reject absolute and traversal names."""
+        config_values = {
+            "QBITTORRENT_URL": "http://localhost:8080",
+            "QBITTORRENT_USERNAME": "admin",
+            "QBITTORRENT_PASSWORD": "password",
+            "QBITTORRENT_CATEGORY": "test",
+        }
+        monkeypatch.setattr(
+            "shelfmark.download.clients.qbittorrent.config.get",
+            lambda key, default="": config_values.get(key, default),
+        )
+
+        mock_torrent = MockTorrent(
+            hash_val="abc123",
+            progress=1.0,
+            state="uploading",
+            content_path="/downloads",
+            name=torrent_name,
+        )
+        info_payload = mock_torrent.to_dict() | {"save_path": "/downloads"}
+        mock_client_instance = MagicMock()
+        mock_client_instance._session.get.side_effect = [
+            create_mock_session_response([info_payload], status_code=200),
+            create_mock_session_response([], status_code=404),
+        ]
+        mock_client_class = MagicMock(return_value=mock_client_instance)
+
+        with patch.dict("sys.modules", {"qbittorrentapi": MagicMock(Client=mock_client_class)}):
+            import importlib
+
+            import shelfmark.download.clients.qbittorrent as qb_module
+
+            importlib.reload(qb_module)
+
+            client = qb_module.QBittorrentClient()
+            status = client.get_status("abc123")
+
+            assert status.complete is True
+            assert status.file_path is None
+
+    def test_get_status_accepts_safe_legacy_name_path(self, monkeypatch):
+        """Normal relative torrent names still build under save_path."""
+        config_values = {
+            "QBITTORRENT_URL": "http://localhost:8080",
+            "QBITTORRENT_USERNAME": "admin",
+            "QBITTORRENT_PASSWORD": "password",
+            "QBITTORRENT_CATEGORY": "test",
+        }
+        monkeypatch.setattr(
+            "shelfmark.download.clients.qbittorrent.config.get",
+            lambda key, default="": config_values.get(key, default),
+        )
+
+        mock_torrent = MockTorrent(
+            hash_val="abc123",
+            progress=1.0,
+            state="uploading",
+            content_path="/downloads",
+            name="Some Torrent",
+        )
+        info_payload = mock_torrent.to_dict() | {"save_path": "/downloads"}
+        mock_client_instance = MagicMock()
+        mock_client_instance._session.get.side_effect = [
+            create_mock_session_response([info_payload], status_code=200),
+            create_mock_session_response([], status_code=404),
+        ]
+        mock_client_class = MagicMock(return_value=mock_client_instance)
+
+        with patch.dict("sys.modules", {"qbittorrentapi": MagicMock(Client=mock_client_class)}):
+            import importlib
+
+            import shelfmark.download.clients.qbittorrent as qb_module
+
+            importlib.reload(qb_module)
+
+            client = qb_module.QBittorrentClient()
+            status = client.get_status("abc123")
+
+            assert status.complete is True
+            assert status.file_path == "/downloads/Some Torrent"
+
     def test_get_status_not_found(self, monkeypatch):
         """Test status for non-existent torrent."""
         config_values = {

tests/prowlarr/test_remote_path_mappings.py

@@ -410,3 +410,83 @@ def test_windows_path_case_insensitive_matching():
 
             assert result == str(local_file)
             assert task.original_download_path == str(local_file)
+
+
+def test_resolve_download_path_rejects_unsafe_mapping_remainder_even_if_original_exists(
+    tmp_path,
+):
+    remote_dir = tmp_path / "remote" / "downloads"
+    local_dir = tmp_path / "local" / "downloads"
+    escaped_file = tmp_path / "escape" / "book.epub"
+    remote_dir.mkdir(parents=True)
+    local_dir.mkdir(parents=True)
+    escaped_file.parent.mkdir(parents=True)
+    escaped_file.write_text("escaped content")
+
+    raw_path = f"{remote_dir}/../../escape/book.epub"
+
+    mock_client = MagicMock()
+    mock_client.name = "qbittorrent"
+    mock_client.get_download_path.return_value = raw_path
+
+    def config_get(key: str, default=""):
+        if key == "PROWLARR_REMOTE_PATH_MAPPINGS":
+            return [
+                {
+                    "host": "qbittorrent",
+                    "remotePath": str(remote_dir),
+                    "localPath": str(local_dir),
+                }
+            ]
+        return default
+
+    with patch("shelfmark.download.clients.base_handler.config.get", side_effect=config_get):
+        handler = ProwlarrHandler()
+
+        resolved_path, error = handler._resolve_download_path_once(
+            mock_client,
+            "download_id",
+            log_details=False,
+        )
+
+    assert Path(raw_path).exists()
+    assert resolved_path is None
+    assert error is not None
+    assert "rejected unsafe path" in error
+
+
+def test_delete_local_download_data_skips_unsafe_mapping_remainder_even_if_original_exists(
+    tmp_path,
+):
+    remote_dir = tmp_path / "remote" / "downloads"
+    local_dir = tmp_path / "local" / "downloads"
+    escaped_file = tmp_path / "escape" / "book.epub"
+    remote_dir.mkdir(parents=True)
+    local_dir.mkdir(parents=True)
+    escaped_file.parent.mkdir(parents=True)
+    escaped_file.write_text("escaped content")
+
+    raw_path = f"{remote_dir}/../../escape/book.epub"
+
+    mock_client = MagicMock()
+    mock_client.name = "nzbget"
+    mock_client.get_download_path.return_value = raw_path
+
+    def config_get(key: str, default=""):
+        if key == "PROWLARR_REMOTE_PATH_MAPPINGS":
+            return [
+                {
+                    "host": "nzbget",
+                    "remotePath": str(remote_dir),
+                    "localPath": str(local_dir),
+                }
+            ]
+        return default
+
+    with patch("shelfmark.download.clients.base_handler.config.get", side_effect=config_get):
+        handler = ProwlarrHandler()
+        handler._delete_local_download_data(mock_client, "download_id")
+
+    assert Path(raw_path).exists()
+    assert escaped_file.exists()
+    assert escaped_file.read_text() == "escaped content"

tests/prowlarr/test_sabnzbd_client.py

@@ -476,6 +476,7 @@ class TestSABnzbdClientAddDownload:
             "SABNZBD_URL": "http://localhost:8080",
             "SABNZBD_API_KEY": "abc123",
             "SABNZBD_CATEGORY": "books",
+            "PROWLARR_URL": "https://example.com",
         }
         monkeypatch.setattr(
             "shelfmark.download.clients.sabnzbd.config.get",
@@ -512,6 +513,7 @@ class TestSABnzbdClientAddDownload:
             "SABNZBD_URL": "http://localhost:8080",
             "SABNZBD_API_KEY": "abc123",
             "SABNZBD_CATEGORY": "books",
+            "PROWLARR_URL": "https://example.com",
         }
         monkeypatch.setattr(
             "shelfmark.download.clients.sabnzbd.config.get",
@@ -551,6 +553,7 @@ class TestSABnzbdClientAddDownload:
             "SABNZBD_URL": "http://localhost:8080",
             "SABNZBD_API_KEY": "abc123",
             "SABNZBD_CATEGORY": "books",
+            "PROWLARR_URL": "https://example.com",
         }
         monkeypatch.setattr(
             "shelfmark.download.clients.sabnzbd.config.get",
@@ -592,6 +595,7 @@ class TestSABnzbdClientAddDownload:
             "SABNZBD_URL": "http://localhost:8080",
             "SABNZBD_API_KEY": "abc123",
             "SABNZBD_CATEGORY": "books",
+            "PROWLARR_URL": "https://example.com",
         }
         monkeypatch.setattr(
             "shelfmark.download.clients.sabnzbd.config.get",
@@ -620,6 +624,36 @@ class TestSABnzbdClientAddDownload:
             assert result == "SABnzbd_nzo_fallback"
             assert mock_api_call.call_args[0][0] == "addurl"
 
+    def test_add_download_does_not_prefetch_untrusted_nzb_url(self, monkeypatch):
+        """Untrusted NZB URLs should be handed to SABnzbd without backend prefetch."""
+        config_values = {
+            "SABNZBD_URL": "http://localhost:8080",
+            "SABNZBD_API_KEY": "abc123",
+            "SABNZBD_CATEGORY": "books",
+            "PROWLARR_URL": "https://prowlarr.example",
+        }
+        monkeypatch.setattr(
+            "shelfmark.download.clients.sabnzbd.config.get",
+            lambda key, default="": config_values.get(key, default),
+        )
+
+        mock_response = MagicMock()
+        mock_response.json.return_value = {"status": True, "nzo_ids": ["SABnzbd_nzo_addurl"]}
+
+        with patch(
+            "shelfmark.download.clients.sabnzbd.requests.get",
+            return_value=mock_response,
+        ) as mock_get:
+            from shelfmark.download.clients.sabnzbd import SABnzbdClient
+
+            client = SABnzbdClient()
+            result = client.add_download("https://attacker.example/download.nzb", "Test Book")
+
+        assert result == "SABnzbd_nzo_addurl"
+        called_urls = [call.args[0] for call in mock_get.call_args_list]
+        assert "https://attacker.example/download.nzb" not in called_urls
+        assert called_urls == ["http://localhost:8080/api"]
+
 
 class TestSABnzbdClientRemove:
     """Tests for SABnzbdClient.remove()."""

tests/prowlarr/test_source.py

@@ -5,7 +5,10 @@ Tests the utility functions for parsing release metadata.
 """
 
 # Import the functions to test
+import pytest
+
 from shelfmark.metadata_providers import BookMetadata
+from shelfmark.release_sources.prowlarr.api import ProwlarrClient
 from shelfmark.release_sources.prowlarr.source import (
     ProwlarrSource,
     _detect_content_type_from_categories,
@@ -15,6 +18,20 @@ from shelfmark.release_sources.prowlarr.source import (
 from shelfmark.release_sources.prowlarr.utils import get_protocol_display, sanitize_download_url
 
 
+class _AvailableSource:
+    display_name = "Prowlarr"
+
+    def is_available(self):
+        return True
+
+
+@pytest.fixture(autouse=True)
+def source_available_by_default(monkeypatch):
+    import shelfmark.download.orchestrator as orchestrator
+
+    monkeypatch.setattr(orchestrator, "get_source", lambda _source: _AvailableSource())
+
+
 class TestParseSize:
     """Tests for the _parse_size function."""
 
@@ -210,9 +227,12 @@ class TestDetectContentType:
 
 
 class FakeTorznabClient:
-    def __init__(self):
+    def __init__(self, search_results=None, seed_settings=None):
         self.calls: list[tuple[str, object]] = []
         self.queries: list[str] = []
+        self.seed_settings_calls: list[object] = []
+        self.search_results = search_results or []
+        self.seed_settings = seed_settings or {}
 
     def get_enabled_indexers_detailed(self):
         return [
@@ -241,12 +261,47 @@ class FakeTorznabClient:
         del indexer_id, search_type, limit, offset
         self.calls.append((query, categories))
         self.queries.append(query)
-        return []
+        return self.search_results
 
     def get_enriched_indexer_ids(self, restrict_to=None):
         del restrict_to
         return []
 
+    def get_indexer_seed_settings(self, restrict_to=None):
+        self.seed_settings_calls.append(restrict_to)
+        return self.seed_settings
+
+
+class TestProwlarrIndexerSeedSettings:
+    def test_get_indexer_seed_settings_reads_prowlarr_minutes_field(self, monkeypatch):
+        client = ProwlarrClient("http://prowlarr:9696", "apikey")
+        monkeypatch.setattr(
+            client,
+            "get_enabled_indexers_detailed",
+            lambda: [
+                {
+                    "id": 13,
+                    "protocol": "torrent",
+                    "fields": [
+                        {"name": "torrentBaseSettings.seedRatio", "value": "2.5"},
+                        {"name": "torrentBaseSettings.seedTime", "value": "7200"},
+                    ],
+                },
+                {
+                    "id": 14,
+                    "protocol": "usenet",
+                    "fields": [
+                        {"name": "torrentBaseSettings.seedRatio", "value": "3"},
+                        {"name": "torrentBaseSettings.seedTime", "value": "9999"},
+                    ],
+                },
+            ],
+        )
+
+        assert client.get_indexer_seed_settings() == {
+            13: {"ratio_limit": 2.5, "seeding_time_limit_minutes": 7200}
+        }
+
 
 class TestProwlarrLocalizedQueries:
     def test_manual_query_still_applies_content_type_categories(self, monkeypatch):
@@ -309,6 +364,163 @@ class TestProwlarrLocalizedQueries:
 
         assert fake_client.calls == [("my custom", None)]
 
+    def test_search_attaches_configured_seed_time_minutes_to_release(self, monkeypatch):
+        import shelfmark.release_sources.prowlarr.source as prowlarr_source
+
+        def fake_get(key: str, default=None):
+            values = {
+                "PROWLARR_INDEXERS": "",
+                "PROWLARR_AUTO_EXPAND": False,
+                "PROWLARR_USE_SEED_PREFERENCES": True,
+            }
+            return values.get(key, default)
+
+        monkeypatch.setattr(prowlarr_source.config, "get", fake_get)
+
+        fake_client = FakeTorznabClient(
+            search_results=[
+                {
+                    "guid": "mam-result-1",
+                    "protocol": "torrent",
+                    "title": "Test Release",
+                    "magnetUrl": "magnet:?xt=urn:btih:abc123",
+                    "indexerId": 1,
+                    "indexer": "MyAnonamouse",
+                    "minimumSeedTime": 259200,
+                    "minimumRatio": 1,
+                }
+            ],
+            seed_settings={1: {"ratio_limit": 2.0, "seeding_time_limit_minutes": 7200}},
+        )
+        source = ProwlarrSource()
+        monkeypatch.setattr(source, "_get_client", lambda: fake_client)
+
+        book = BookMetadata(
+            provider="hardcover",
+            provider_id="123",
+            title="Anything",
+            authors=["Someone"],
+        )
+
+        from shelfmark.core.search_plan import build_release_search_plan
+
+        plan = build_release_search_plan(book, languages=["en"])
+        releases = source.search(book, plan, content_type="ebook")
+
+        assert len(releases) == 1
+        assert fake_client.seed_settings_calls == [None]
+        assert releases[0].extra["configured_ratio_limit"] == 2.0
+        assert releases[0].extra["configured_seed_time_minutes"] == 7200
+        assert "minimum_seed_time" not in releases[0].extra
+        assert "minimum_ratio" not in releases[0].extra
+
+    def test_search_ignores_configured_seed_time_when_disabled(self, monkeypatch):
+        import shelfmark.release_sources.prowlarr.source as prowlarr_source
+
+        def fake_get(key: str, default=None):
+            values = {
+                "PROWLARR_INDEXERS": "",
+                "PROWLARR_AUTO_EXPAND": False,
+                "PROWLARR_USE_SEED_PREFERENCES": False,
+            }
+            return values.get(key, default)
+
+        monkeypatch.setattr(prowlarr_source.config, "get", fake_get)
+
+        fake_client = FakeTorznabClient(
+            search_results=[
+                {
+                    "guid": "mam-result-1",
+                    "protocol": "torrent",
+                    "title": "Test Release",
+                    "magnetUrl": "magnet:?xt=urn:btih:abc123",
+                    "indexerId": 1,
+                    "indexer": "MyAnonamouse",
+                }
+            ],
+            seed_settings={1: {"ratio_limit": 2.0, "seeding_time_limit_minutes": 7200}},
+        )
+        source = ProwlarrSource()
+        monkeypatch.setattr(source, "_get_client", lambda: fake_client)
+
+        book = BookMetadata(
+            provider="hardcover",
+            provider_id="123",
+            title="Anything",
+            authors=["Someone"],
+        )
+
+        from shelfmark.core.search_plan import build_release_search_plan
+
+        plan = build_release_search_plan(book, languages=["en"])
+        releases = source.search(book, plan, content_type="ebook")
+
+        assert len(releases) == 1
+        assert fake_client.seed_settings_calls == []
+        assert releases[0].extra["configured_ratio_limit"] is None
+        assert releases[0].extra["configured_seed_time_minutes"] is None
+
+    def test_redacted_search_result_still_builds_private_retry_payload(self, monkeypatch):
+        import shelfmark.download.orchestrator as orchestrator
+        import shelfmark.release_sources.prowlarr.source as prowlarr_source
+
+        secret_download_url = "https://prowlarr.example.com/1/download?apikey=secret"
+
+        def fake_get(key: str, default=None, user_id=None):
+            values = {
+                "PROWLARR_INDEXERS": "",
+                "PROWLARR_AUTO_EXPAND": False,
+                "PROWLARR_USE_SEED_PREFERENCES": False,
+            }
+            return values.get(key, default)
+
+        monkeypatch.setattr(prowlarr_source.config, "get", fake_get)
+        monkeypatch.setattr(orchestrator.config, "get", fake_get)
+
+        fake_client = FakeTorznabClient(
+            search_results=[
+                {
+                    "guid": "secret-prowlarr-release",
+                    "protocol": "usenet",
+                    "title": "Secret Bearing Release",
+                    "downloadUrl": secret_download_url,
+                }
+            ]
+        )
+        source = ProwlarrSource()
+        monkeypatch.setattr(source, "_get_client", lambda: fake_client)
+
+        book = BookMetadata(
+            provider="hardcover",
+            provider_id="123",
+            title="Anything",
+            authors=["Someone"],
+        )
+
+        from shelfmark.core.search_plan import build_release_search_plan
+
+        plan = build_release_search_plan(book, languages=["en"])
+        releases = source.search(book, plan, content_type="ebook")
+
+        assert len(releases) == 1
+        assert releases[0].download_url is None
+
+        captured_tasks = []
+
+        def fake_add(task):
+            captured_tasks.append(task)
+            return True
+
+        monkeypatch.setattr(orchestrator.book_queue, "add", fake_add)
+
+        success, error = orchestrator.queue_release(releases[0].__dict__)
+
+        assert success is True
+        assert error is None
+        assert captured_tasks[0].retry_download_url == secret_download_url
+        assert captured_tasks[0].retry_download_protocol == "usenet"
+        assert "retry_download_url" not in orchestrator._task_to_dict(captured_tasks[0])
+
     def test_search_uses_localized_titles_when_available(self, monkeypatch):
         import shelfmark.release_sources.prowlarr.source as prowlarr_source
 

tests/prowlarr/test_torrent_utils.py

@@ -10,6 +10,7 @@ Tests:
 
 import base64
 import hashlib
+from unittest.mock import MagicMock
 
 import pytest
 
@@ -18,6 +19,7 @@ from shelfmark.download.clients.torrent_utils import (
     bencode_encode,
     extract_hash_from_magnet,
     extract_info_hash_from_torrent,
+    extract_torrent_info,
     parse_transmission_url,
 )
 
@@ -356,6 +358,121 @@ class TestExtractInfoHash:
         assert extract_info_hash_from_torrent(torrent_bytes) == expected
 
 
+class TestExtractTorrentInfo:
+    """Tests for extracting torrent info from user-supplied URLs."""
+
+    def test_does_not_fetch_untrusted_http_torrent_url(self, monkeypatch):
+        """Arbitrary HTTP torrent URLs are passed through without backend prefetch."""
+        expected_hash = "3b245504cf5f11bbdbe1201cea6a6bf45aee1bc0"
+        monkeypatch.setattr(
+            "shelfmark.download.clients.torrent_utils.config.get",
+            lambda key, default="": "",
+        )
+        mock_get = MagicMock()
+        monkeypatch.setattr("shelfmark.download.clients.torrent_utils.requests.get", mock_get)
+
+        result = extract_torrent_info(
+            "https://attacker.example/book.torrent",
+            fetch_torrent=True,
+            expected_hash=expected_hash,
+        )
+
+        assert result.info_hash == expected_hash
+        assert result.torrent_data is None
+        assert result.is_magnet is False
+        mock_get.assert_not_called()
+
+    def test_fetches_configured_prowlarr_torrent_url(self, monkeypatch):
+        """Configured Prowlarr download URLs can still be prefetched and parsed."""
+        info_dict = {
+            b"name": b"trusted.txt",
+            b"length": 100,
+            b"piece length": 16384,
+            b"pieces": b"\x00" * 20,
+        }
+        torrent_data = bencode_encode({b"info": info_dict})
+        expected_hash = hashlib.sha1(bencode_encode(info_dict)).hexdigest().lower()
+
+        config_values = {
+            "PROWLARR_URL": "https://prowlarr.example",
+            "PROWLARR_API_KEY": "secret",
+        }
+        monkeypatch.setattr(
+            "shelfmark.download.clients.torrent_utils.config.get",
+            lambda key, default="": config_values.get(key, default),
+        )
+        response = MagicMock(status_code=200, content=torrent_data)
+        response.raise_for_status = MagicMock()
+        mock_get = MagicMock(return_value=response)
+        monkeypatch.setattr("shelfmark.download.clients.torrent_utils.requests.get", mock_get)
+
+        result = extract_torrent_info(
+            "https://prowlarr.example/1/download?apikey=secret&indexer=7",
+            fetch_torrent=True,
+        )
+
+        assert result.info_hash == expected_hash
+        assert result.torrent_data == torrent_data
+        assert result.is_magnet is False
+        mock_get.assert_called_once()
+
+    def test_normalizes_configured_origin_before_trusting_torrent_url(self, monkeypatch):
+        """Configured Prowlarr URLs match the same normalization used by the source."""
+        info_dict = {
+            b"name": b"trusted.txt",
+            b"length": 100,
+            b"piece length": 16384,
+            b"pieces": b"\x00" * 20,
+        }
+        torrent_data = bencode_encode({b"info": info_dict})
+        expected_hash = hashlib.sha1(bencode_encode(info_dict)).hexdigest().lower()
+
+        config_values = {
+            "PROWLARR_URL": "prowlarr.example:9696/",
+            "PROWLARR_API_KEY": "secret",
+        }
+        monkeypatch.setattr(
+            "shelfmark.download.clients.torrent_utils.config.get",
+            lambda key, default="": config_values.get(key, default),
+        )
+        response = MagicMock(status_code=200, content=torrent_data)
+        response.raise_for_status = MagicMock()
+        mock_get = MagicMock(return_value=response)
+        monkeypatch.setattr("shelfmark.download.clients.torrent_utils.requests.get", mock_get)
+
+        result = extract_torrent_info(
+            "http://prowlarr.example:9696/1/download?apikey=secret&indexer=7",
+            fetch_torrent=True,
+        )
+
+        assert result.info_hash == expected_hash
+        assert result.torrent_data == torrent_data
+        mock_get.assert_called_once()
+
+    def test_does_not_follow_trusted_torrent_url_redirect_to_untrusted_host(self, monkeypatch):
+        """Trusted HTTP prefetch does not continue through arbitrary redirects."""
+        expected_hash = "3b245504cf5f11bbdbe1201cea6a6bf45aee1bc0"
+        monkeypatch.setattr(
+            "shelfmark.download.clients.torrent_utils.config.get",
+            lambda key, default="": "https://prowlarr.example" if key == "PROWLARR_URL" else "",
+        )
+        response = MagicMock(status_code=302)
+        response.headers = {"Location": "https://attacker.example/book.torrent"}
+        mock_get = MagicMock(return_value=response)
+        monkeypatch.setattr("shelfmark.download.clients.torrent_utils.requests.get", mock_get)
+
+        result = extract_torrent_info(
+            "https://prowlarr.example/1/download?apikey=secret&indexer=7",
+            fetch_torrent=True,
+            expected_hash=expected_hash,
+        )
+
+        assert result.info_hash == expected_hash
+        assert result.torrent_data is None
+        assert result.is_magnet is False
+        mock_get.assert_called_once()
+
+
 class TestExtractHashFromMagnet:
     """Tests for extracting hash from magnet links."""
 

tor.sh

@@ -155,11 +155,14 @@ wait_for_tor() {
     return 1
 }
 
+tor_is_healthy() {
+    supervisorctl status tor | grep -q "RUNNING" &&
+        grep -q "Bootstrapped 100%" /var/log/tor/notices.log 2>/dev/null
+}
+
 FAIL_COUNT=0
 while true; do
-    # Try to resolve/connect to google.com (timeout 10s)
-    if curl -s --head --max-time 10 https://google.com > /dev/null; then
-        # Success
+    if tor_is_healthy; then
         FAIL_COUNT=0
     else
         FAIL_COUNT=$((FAIL_COUNT+1))
@@ -213,20 +216,29 @@ echo "[*] Setting up iptables rules..."
 
 iptables -F
 iptables -t nat -F
+TOR_UID=$(id -u debian-tor)
 
 # Allow loopback
 iptables -t nat -A OUTPUT -o lo -j RETURN
 
-# Redirect all TCP to Tor's TransPort
-iptables -t nat -A OUTPUT -p tcp --syn -j REDIRECT --to-ports 9040
+# Allow Tor itself to reach the network
+iptables -t nat -A OUTPUT -m owner --uid-owner "$TOR_UID" -j RETURN
 
 # For UDP DNS queries
 iptables -t nat -A OUTPUT -p udp --dport 53 ! -d 127.0.0.1 -j DNAT --to-destination 127.0.0.1:53
 
-
 # For TCP DNS queries (some DNS queries may use TCP)
 iptables -t nat -A OUTPUT -p tcp --dport 53 ! -d 127.0.0.1 -j DNAT --to-destination 127.0.0.1:53
 
+# Bypass Tor for local/private networks
+iptables -t nat -A OUTPUT -d 127.0.0.0/8 -j RETURN
+iptables -t nat -A OUTPUT -d 10.0.0.0/8 -j RETURN
+iptables -t nat -A OUTPUT -d 172.16.0.0/12 -j RETURN
+iptables -t nat -A OUTPUT -d 192.168.0.0/16 -j RETURN
+
+# Redirect all TCP to Tor's TransPort
+iptables -t nat -A OUTPUT -p tcp --syn -j REDIRECT --to-ports 9040
+
 echo "[✓] Transparent Tor routing enabled."
 
 sleep 5

uv.lock

@@ -4,7 +4,7 @@ requires-python = ">=3.14"
 
 [[package]]
 name = "apprise"
-version = "1.9.9"
+version = "1.10.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "certifi" },
@@ -15,9 +15,9 @@ dependencies = [
     { name = "requests-oauthlib" },
     { name = "tzdata", marker = "sys_platform == 'win32'" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/20/f4/be5c7e39b83a2285ab62ae7c19bb10704836f59c0a5b4c471730f54c9f98/apprise-1.9.9.tar.gz", hash = "sha256:fd622c0df16bdc79ed385539735573488cafe2405d25747e87eebd6b09b26012", size = 2032822, upload-time = "2026-03-21T17:49:14.041Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/2f/74/9c16829d3e7e45ce7daf1b704687fa4fde7ea00d72eafe8de18c72bf5995/apprise-1.10.0.tar.gz", hash = "sha256:b768f32d99e45ed5f4c3eef1f67903e803c97f97ba61a531a5d0a45d40df90a8", size = 2188611, upload-time = "2026-04-26T14:23:51.928Z" }
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+    { url = "https://files.pythonhosted.org/packages/69/f9/177a73589d34e676d10bc4c6a8328710e28af5907234e9f25bb149a04eec/apprise-1.10.0-py3-none-any.whl", hash = "sha256:e685303d3568bb7a057d6ddeafd27ee12fff183ca36483ad4bacc0b9b4efa82c", size = 1632292, upload-time = "2026-04-26T14:23:49.28Z" },
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 [[package]]
@@ -31,15 +31,15 @@ wheels = [
 
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 name = "authlib"
-version = "1.7.0"
+version = "1.7.2"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
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     { name = "joserfc" },
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+    { url = "https://files.pythonhosted.org/packages/fb/95/adcb68e20c34162e9135f370d6e31737719c2b6f94bc953fe7ed1f10fe21/authlib-1.7.2-py2.py3-none-any.whl", hash = "sha256:3e1faedc9d87e7d56a164eca3ccb6ace0d61b94abe83e92242f8dc8bba9b4a9f", size = 259548, upload-time = "2026-05-06T08:10:21.436Z" },
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 [[package]]
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-version = "2026.2.25"
+version = "2026.4.22"
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+    { url = "https://files.pythonhosted.org/packages/22/30/7cd8fdcdfbc5b869528b079bfb76dcdf6056b1a2097a662e5e8c04f42965/certifi-2026.4.22-py3-none-any.whl", hash = "sha256:3cb2210c8f88ba2318d29b0388d1023c8492ff72ecdde4ebdaddbb13a31b1c4a", size = 135707, upload-time = "2026-04-22T11:26:09.372Z" },
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+    { url = "https://files.pythonhosted.org/packages/5d/13/ad7d7ca3808a898b4612b6fe93cde56b53f3034dcde235acb1f0e1df24c6/idna-3.13-py3-none-any.whl", hash = "sha256:892ea0cde124a99ce773decba204c5552b69c3c67ffd5f232eb7696135bc8bb3", size = 68629, upload-time = "2026-04-22T16:42:40.909Z" },
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 [[package]]
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