URL normalization and path mapping tweaks (#489)

- URL normalization (WIP) for external clients / prowlarr / booklore
URLs used.
- More robust handling of Windows path directories in mapping 
- UI tweaks
- Compose clean-ups

compose/docker-compose.lite.yml

@@ -2,15 +2,14 @@ services:
   shelfmark-lite:
     image: ghcr.io/calibrain/shelfmark-lite:latest
     environment:
-      # TZ: America/New_York
       # EXT_BYPASSER_URL: http://flaresolverr:8191 #If using Flaresolverr
-      # PUID: 1000
+      PUID: 1000
-      # PGID: 1000
+      PGID: 1000
     ports:
       - 8084:8084
     restart: unless-stopped
     volumes:
-      - /path/to/books:/books # Book destination directory
+      - /path/to/books:/books # Default destination for book downloads
       - /path/to/config:/config # App configuration
-      # Download client mount - path must match your torrent/usenet client's volume exactly
+      # Required for torrent / usenet - path must match your download client's volume exactly
       # - /path/to/downloads:/path/to/downloads

compose/docker-compose.tor.yml

@@ -4,10 +4,9 @@ services:
     image: ghcr.io/calibrain/shelfmark:latest
     environment:
       FLASK_PORT: 8084
-      # TZ: America/New_York
       USING_TOR: true
-      # PUID: 1000
+      PUID: 1000
-      # PGID: 1000
+      PGID: 1000
     cap_add:
       - NET_ADMIN
       - NET_RAW
@@ -15,7 +14,7 @@ services:
       - 8084:8084
     restart: unless-stopped
     volumes:
-      - /path/to/books:/books # Book destination directory
+      - /path/to/books:/books # Default destination for book downloads
       - /path/to/config:/config # App configuration
-      # Download client mount - path must match your torrent/usenet client's volume exactly
+      # Required for torrent / usenet - path must match your download client's volume exactly
       # - /path/to/downloads:/path/to/downloads

compose/docker-compose.yml

@@ -3,14 +3,13 @@ services:
     image: ghcr.io/calibrain/shelfmark:latest
     container_name: shelfmark
     environment:
-      # TZ: America/New_York
+      PUID: 1000
-      # PUID: 1000
+      PGID: 1000
-      # PGID: 1000
     ports:
       - 8084:8084
     restart: unless-stopped
     volumes:
-      - /path/to/books:/books # Book destination directory
+      - /path/to/books:/books # Default destination for book downloads
       - /path/to/config:/config # App configuration
-      # Download client mount - path must match your torrent/usenet client's volume exactly
+      # Required for torrent / usenet - path must match your download client's volume exactly
       # - /path/to/downloads:/path/to/downloads

compose/edge/docker-compose.lite.yml

@@ -1,20 +0,0 @@
-# Uses external Cloudflare bypasser (FlareSolverr/ByParr) instead of built-in Selenium
-services:
-  shelfmark-lite:
-    image: ghcr.io/calibrain/shelfmark-lite:dev
-    environment:
-      # TZ: America/New_York
-      EXT_BYPASSER_URL: http://flaresolverr:8191
-      # PUID: 1000
-      # PGID: 1000
-    ports:
-      - 8084:8084
-    restart: unless-stopped
-    volumes:
-      - /path/to/books:/books # Book destination directory
-      - /path/to/config:/config # App configuration
-      # Download client mount - path must match your torrent/usenet client's volume exactly
-      # - /path/to/downloads:/path/to/downloads
-
-  flaresolverr:
-    image: ghcr.io/flaresolverr/flaresolverr:latest

compose/edge/docker-compose.tor.yml

@@ -1,21 +0,0 @@
-# Routes all traffic through Tor - requires NET_ADMIN capability
-services:
-  shelfmark-tor:
-    image: ghcr.io/calibrain/shelfmark:dev
-    environment:
-      FLASK_PORT: 8084
-      # TZ: America/New_York
-      USING_TOR: true
-      # PUID: 1000
-      # PGID: 1000
-    cap_add:
-      - NET_ADMIN
-      - NET_RAW
-    ports:
-      - 8084:8084
-    restart: unless-stopped
-    volumes:
-      - /path/to/books:/books # Book destination directory
-      - /path/to/config:/config # App configuration
-      # Download client mount - path must match your torrent/usenet client's volume exactly
-      # - /path/to/downloads:/path/to/downloads

compose/edge/docker-compose.yml

@@ -1,16 +0,0 @@
-services:
-  shelfmark:
-    image: ghcr.io/calibrain/shelfmark:dev
-    container_name: shelfmark
-    environment:
-      # TZ: America/New_York
-      # PUID: 1000
-      # PGID: 1000
-    ports:
-      - 8084:8084
-    restart: unless-stopped
-    volumes:
-      - /path/to/books:/books # Book destination directory
-      - /path/to/config:/config # App configuration
-      # Download client mount - path must match your torrent/usenet client's volume exactly
-      # - /path/to/downloads:/path/to/downloads

docker-compose.dev.extbp.yml

@@ -2,7 +2,7 @@
 services:
   shelfmark-lite-dev:
     extends:
-      file: ./compose/edge/docker-compose.extbp.yml
+      file: ./compose/docker-compose.lite.yml
       service: shelfmark-lite
     build:
       context: .
@@ -18,7 +18,7 @@ services:
       - ./.local/books:/books
       - ./.local/log:/var/log/shelfmark
       - ./.local/tmp:/tmp/shelfmark
-      # Download client mount - path must match your torrent/usenet client's volume exactly
+      # Required for torrent / usenet - path must match your download client's volume exactly
       # - /path/to/downloads:/path/to/downloads
 
   flaresolverr:

docker-compose.dev.tor.yml

@@ -2,7 +2,7 @@
 services:
   shelfmark-tor-dev:
     extends:
-      file: ./compose/edge/docker-compose.tor.yml
+      file: ./compose/docker-compose.tor.yml
       service: shelfmark-tor
     build:
       context: .
@@ -16,5 +16,5 @@ services:
       - ./.local/books:/books
       - ./.local/log:/var/log/shelfmark
       - ./.local/tmp:/tmp/shelfmark
-      # Download client mount - path must match your torrent/usenet client's volume exactly
+      # Required for torrent / usenet - path must match your download client's volume exactly
       # - /path/to/downloads:/path/to/downloads

docker-compose.dev.yml

@@ -2,7 +2,7 @@
 services:
   shelfmark-dev:
     extends:
-      file: ./compose/edge/docker-compose.yml
+      file: ./compose/docker-compose.yml
       service: shelfmark
     build:
       context: .
@@ -18,5 +18,5 @@ services:
       - ./.local/log:/var/log/shelfmark
       - ./.local/tmp:/tmp/shelfmark
       - ./shelfmark:/app/shelfmark:ro
-      # Download client mount - path must match your torrent/usenet client's volume exactly
+      # Required for torrent / usenet - path must match your download client's volume exactly
       # - /path/to/downloads:/path/to/downloads

readme.md

@@ -41,9 +41,9 @@ Shelfmark is a unified web interface for searching and aggregating books and aud
 
 ### Installation
 
-1. Download the docker-compose file:
+1. Download the [docker-compose file](compose/docker-compose.yml):
    ```bash
-   curl -O https://raw.githubusercontent.com/calibrain/shelfmark/main/compose/stable/docker-compose.yml
+   curl -O https://raw.githubusercontent.com/calibrain/shelfmark/main/compose/docker-compose.yml
    ```
 
 2. Start the service:
@@ -51,8 +51,6 @@ Shelfmark is a unified web interface for searching and aggregating books and aud
    docker compose up -d
    ```
 
-> **Edge users**: If you're tracking the main branch (`:dev` tag), use compose files from `compose/edge/` instead.
-
 3. Open `http://localhost:8084`
 
 That's it! Configure settings through the web interface as needed.
@@ -120,7 +118,7 @@ The full-featured image with built-in Cloudflare bypass.
 #### Enable Tor Routing
 Routes all traffic through Tor for enhanced privacy:
 ```bash
-curl -O https://raw.githubusercontent.com/calibrain/shelfmark/main/compose/stable/docker-compose.tor.yml
+curl -O https://raw.githubusercontent.com/calibrain/shelfmark/main/compose/docker-compose.tor.yml
 docker compose -f docker-compose.tor.yml up -d
 ```
 
@@ -138,7 +136,7 @@ A smaller image without the built-in Cloudflare bypasser. Ideal for:
 - **Audiobooks** - Using Shelfmark exclusively for audiobooks
 
 ```bash
-curl -O https://raw.githubusercontent.com/calibrain/shelfmark/main/compose/stable/docker-compose.lite.yml
+curl -O https://raw.githubusercontent.com/calibrain/shelfmark/main/compose/docker-compose.lite.yml
 docker compose -f docker-compose.lite.yml up -d
 ```
 

shelfmark/bypass/external_bypasser.py

@@ -10,6 +10,7 @@ import requests
 from shelfmark.bypass import BypassCancelledException
 from shelfmark.core.config import config
 from shelfmark.core.logger import setup_logger
+from shelfmark.core.utils import normalize_http_url
 
 if TYPE_CHECKING:
     from shelfmark.download import network
@@ -29,10 +30,11 @@ BACKOFF_CAP = 10.0
 
 def _fetch_via_bypasser(target_url: str) -> Optional[str]:
     """Make a single request to the external bypasser service. Returns HTML or None."""
-    bypasser_url = config.get("EXT_BYPASSER_URL", "http://flaresolverr:8191")
+    raw_bypasser_url = config.get("EXT_BYPASSER_URL", "http://flaresolverr:8191")
     bypasser_path = config.get("EXT_BYPASSER_PATH", "/v1")
     bypasser_timeout = config.get("EXT_BYPASSER_TIMEOUT", 60000)
 
+    bypasser_url = normalize_http_url(raw_bypasser_url)
     if not bypasser_url or not bypasser_path:
         logger.error("External bypasser not configured. Check EXT_BYPASSER_URL and EXT_BYPASSER_PATH.")
         return None

shelfmark/config/settings.py

@@ -8,6 +8,9 @@ from typing import Any, Dict
 
 def _on_save_advanced(values: Dict[str, Any]) -> Dict[str, Any]:
     """Validate advanced settings before persisting."""
+    from shelfmark.core.logger import setup_logger
+
+    logger = setup_logger(__name__)
 
     mappings = values.get("PROWLARR_REMOTE_PATH_MAPPINGS")
     if mappings is None:
@@ -20,9 +23,12 @@ def _on_save_advanced(values: Dict[str, Any]) -> Dict[str, Any]:
             "values": values,
         }
 
+    logger.debug("Processing %d remote path mapping entries", len(mappings))
+
     cleaned = []
-    for entry in mappings:
+    for i, entry in enumerate(mappings):
         if not isinstance(entry, dict):
+            logger.debug("Skipping entry %d: not a dict", i)
             continue
 
         host = str(entry.get("host", "") or "").strip().lower()
@@ -30,17 +36,29 @@ def _on_save_advanced(values: Dict[str, Any]) -> Dict[str, Any]:
         local_path = str(entry.get("localPath", "") or "").strip()
 
         if not host or not remote_path or not local_path:
+            logger.debug(
+                "Skipping entry %d: missing field(s) - host=%r, remotePath=%r, localPath=%r",
+                i,
+                host,
+                remote_path,
+                local_path,
+            )
             continue
 
         if not local_path.startswith("/"):
             return {
                 "error": True,
-                "message": "Local Path must be an absolute path",
+                "message": f"Local Path must be an absolute path (got: {local_path})",
                 "values": values,
             }
 
         cleaned.append({"host": host, "remotePath": remote_path, "localPath": local_path})
 
+    logger.info("Saved %d remote path mapping(s)", len(cleaned))
+    if cleaned:
+        for m in cleaned:
+            logger.debug("  Mapping: %s -> %s (client: %s)", m["remotePath"], m["localPath"], m["host"])
+
     values["PROWLARR_REMOTE_PATH_MAPPINGS"] = cleaned
     return {"error": False, "values": values}
 
@@ -646,7 +664,7 @@ def download_settings():
                 },
                 {
                     "value": "rename",
-                    "label": "Rename only",
+                    "label": "Rename Only",
                     "description": "Rename files using a template"
                 },
                 {
@@ -771,7 +789,7 @@ def download_settings():
             description="Choose how downloaded audiobook files are named and organized.",
             options=[
                 {"value": "none", "label": "None", "description": "Keep original filename from source"},
-                {"value": "rename", "label": "Rename only", "description": "Rename files using a template"},
+                {"value": "rename", "label": "Rename Only", "description": "Rename files using a template"},
                 {"value": "organize", "label": "Rename and Organize", "description": "Create folders and rename files using a template. Recommended for Audiobookshelf. Do not use with ingest folders."},
             ],
             default="rename",

shelfmark/core/mirrors.py

@@ -2,6 +2,8 @@
 
 from typing import List
 
+from shelfmark.core.utils import normalize_http_url
+
 # Lazy import to avoid circular imports
 _config_module = None
 
@@ -44,6 +46,10 @@ DEFAULT_WELIB_MIRRORS = [
 ]
 
 
+def _normalize_mirror_url(url: str) -> str:
+    return normalize_http_url(url, default_scheme="https")
+
+
 def get_aa_mirrors() -> List[str]:
     """
     Get Anna's Archive mirrors from config + defaults.
@@ -51,15 +57,16 @@ def get_aa_mirrors() -> List[str]:
     Returns:
         List of AA mirror URLs, starting with defaults then custom additions.
     """
-    mirrors = list(DEFAULT_AA_MIRRORS)
+    mirrors = [_normalize_mirror_url(url) for url in DEFAULT_AA_MIRRORS]
+    mirrors = [url for url in mirrors if url]
     config = _get_config()
 
     additional = config.get("AA_ADDITIONAL_URLS", "")
     if additional:
         for url in additional.split(","):
-            url = url.strip()
+            normalized = _normalize_mirror_url(url)
-            if url and url not in mirrors:
+            if normalized and normalized not in mirrors:
-                mirrors.append(url)
+                mirrors.append(normalized)
 
     return mirrors
 
@@ -71,15 +78,16 @@ def get_libgen_mirrors() -> List[str]:
     Returns:
         List of LibGen mirror URLs (defaults first, then custom additions).
     """
-    mirrors = list(DEFAULT_LIBGEN_MIRRORS)
+    mirrors = [_normalize_mirror_url(url) for url in DEFAULT_LIBGEN_MIRRORS]
+    mirrors = [url for url in mirrors if url]
     config = _get_config()
 
     additional = config.get("LIBGEN_ADDITIONAL_URLS", "")
     if additional:
         for url in additional.split(","):
-            url = url.strip()
+            normalized = _normalize_mirror_url(url)
-            if url and url not in mirrors:
+            if normalized and normalized not in mirrors:
-                mirrors.append(url)
+                mirrors.append(normalized)
 
     return mirrors
 
@@ -93,21 +101,24 @@ def get_zlib_mirrors() -> List[str]:
     """
     config = _get_config()
 
-    primary = config.get("ZLIB_PRIMARY_URL", DEFAULT_ZLIB_MIRRORS[0])
+    primary = _normalize_mirror_url(config.get("ZLIB_PRIMARY_URL", DEFAULT_ZLIB_MIRRORS[0]))
+    if not primary:
+        primary = _normalize_mirror_url(DEFAULT_ZLIB_MIRRORS[0])
     mirrors = [primary]
 
     # Add other defaults (excluding primary)
     for url in DEFAULT_ZLIB_MIRRORS:
-        if url != primary:
+        normalized = _normalize_mirror_url(url)
-            mirrors.append(url)
+        if normalized and normalized != primary:
+            mirrors.append(normalized)
 
     # Add custom mirrors
     additional = config.get("ZLIB_ADDITIONAL_URLS", "")
     if additional:
         for url in additional.split(","):
-            url = url.strip()
+            normalized = _normalize_mirror_url(url)
-            if url and url not in mirrors:
+            if normalized and normalized not in mirrors:
-                mirrors.append(url)
+                mirrors.append(normalized)
 
     return mirrors
 
@@ -120,7 +131,8 @@ def get_zlib_primary_url() -> str:
         Primary Z-Library mirror URL.
     """
     config = _get_config()
-    return config.get("ZLIB_PRIMARY_URL", DEFAULT_ZLIB_MIRRORS[0])
+    primary = _normalize_mirror_url(config.get("ZLIB_PRIMARY_URL", DEFAULT_ZLIB_MIRRORS[0]))
+    return primary or _normalize_mirror_url(DEFAULT_ZLIB_MIRRORS[0])
 
 
 def get_zlib_url_template() -> str:
@@ -143,21 +155,24 @@ def get_welib_mirrors() -> List[str]:
     """
     config = _get_config()
 
-    primary = config.get("WELIB_PRIMARY_URL", DEFAULT_WELIB_MIRRORS[0])
+    primary = _normalize_mirror_url(config.get("WELIB_PRIMARY_URL", DEFAULT_WELIB_MIRRORS[0]))
+    if not primary:
+        primary = _normalize_mirror_url(DEFAULT_WELIB_MIRRORS[0])
     mirrors = [primary]
 
     # Add other defaults (excluding primary)
     for url in DEFAULT_WELIB_MIRRORS:
-        if url != primary:
+        normalized = _normalize_mirror_url(url)
-            mirrors.append(url)
+        if normalized and normalized != primary:
+            mirrors.append(normalized)
 
     # Add custom mirrors
     additional = config.get("WELIB_ADDITIONAL_URLS", "")
     if additional:
         for url in additional.split(","):
-            url = url.strip()
+            normalized = _normalize_mirror_url(url)
-            if url and url not in mirrors:
+            if normalized and normalized not in mirrors:
-                mirrors.append(url)
+                mirrors.append(normalized)
 
     return mirrors
 
@@ -170,7 +185,8 @@ def get_welib_primary_url() -> str:
         Primary Welib mirror URL.
     """
     config = _get_config()
-    return config.get("WELIB_PRIMARY_URL", DEFAULT_WELIB_MIRRORS[0])
+    primary = _normalize_mirror_url(config.get("WELIB_PRIMARY_URL", DEFAULT_WELIB_MIRRORS[0]))
+    return primary or _normalize_mirror_url(DEFAULT_WELIB_MIRRORS[0])
 
 
 def get_welib_url_template() -> str:
@@ -197,7 +213,9 @@ def get_zlib_cookie_domains() -> set:
 
     # Add all default domains
     for url in DEFAULT_ZLIB_MIRRORS:
-        domain = url.replace("https://", "").replace("http://", "").split("/")[0]
+        normalized = _normalize_mirror_url(url)
+        if normalized:
+            domain = normalized.replace("https://", "").replace("http://", "").split("/")[0]
             domains.add(domain)
 
     # Add custom domains
@@ -205,9 +223,9 @@ def get_zlib_cookie_domains() -> set:
     additional = config.get("ZLIB_ADDITIONAL_URLS", "")
     if additional:
         for url in additional.split(","):
-            url = url.strip()
+            normalized = _normalize_mirror_url(url)
-            if url:
+            if normalized:
-                domain = url.replace("https://", "").replace("http://", "").split("/")[0]
+                domain = normalized.replace("https://", "").replace("http://", "").split("/")[0]
                 domains.add(domain)
 
     return domains

shelfmark/core/naming.py

@@ -3,7 +3,7 @@
 import os
 import re
 from pathlib import Path
-from typing import Dict, Optional, Union
+from typing import Dict, Optional, Union, Mapping
 
 from shelfmark.core.logger import setup_logger
 
@@ -17,10 +17,10 @@ TOKEN_PATTERN = re.compile(
 )
 
 # Characters that are invalid in filenames on various filesystems
-INVALID_CHARS = re.compile(r'[\\:*?"<>|]')
+INVALID_CHARS = re.compile(r'[\\/:*?"<>|]')
 
 
-def _sanitize(name: str, max_length: int = 245) -> str:
+def _sanitize(name: Optional[str], max_length: int = 245) -> str:
     """Sanitize a string for filesystem use."""
     if not name:
         return ""
@@ -31,7 +31,7 @@ def _sanitize(name: str, max_length: int = 245) -> str:
     return sanitized[:max_length]
 
 
-def sanitize_filename(name: str, max_length: int = 245) -> str:
+def sanitize_filename(name: Optional[str], max_length: int = 245) -> str:
     """Sanitize a string for use as a filename or path component."""
     return _sanitize(name, max_length)
 
@@ -40,7 +40,7 @@ def sanitize_filename(name: str, max_length: int = 245) -> str:
 sanitize_path_component = sanitize_filename
 
 
-def format_series_position(position: Optional[Union[int, float]]) -> str:
+def format_series_position(position: Optional[Union[str, int, float]]) -> str:
     if position is None:
         return ""
 
@@ -78,7 +78,9 @@ def assign_part_numbers(
 
 def parse_naming_template(
     template: str,
-    metadata: Dict[str, Optional[Union[str, int, float]]],
+    metadata: Mapping[str, Optional[Union[str, int, float]]],
+    *,
+    allow_path_separators: bool = True,
 ) -> str:
     if not template:
         return ""
@@ -108,6 +110,8 @@ def parse_naming_template(
         if not value:
             return ""
 
+        if not allow_path_separators:
+            value = value.replace("/", "_")
         # Sanitize the value
         value = sanitize_filename(value)
 
@@ -140,10 +144,10 @@ def parse_naming_template(
 def build_library_path(
     base_path: str,
     template: str,
-    metadata: Dict[str, Optional[Union[str, int, float]]],
+    metadata: Mapping[str, Optional[Union[str, int, float]]],
     extension: Optional[str] = None,
 ) -> Path:
-    relative = parse_naming_template(template, metadata)
+    relative = parse_naming_template(template, metadata, allow_path_separators=True)
 
     if not relative:
         # Fallback to title if template produces empty result

shelfmark/core/path_mappings.py

@@ -34,6 +34,11 @@ def _normalize_prefix(path: str) -> str:
     return normalized
 
 
+def _is_windows_path(path: str) -> bool:
+    """Check if a path looks like a Windows path (has a drive letter like C:/)."""
+    return len(path) >= 2 and path[1] == ":" and path[0].isalpha()
+
+
 def _normalize_host(host: str) -> str:
     return str(host or "").strip().lower()
 
@@ -61,12 +66,21 @@ def parse_remote_path_mappings(value: Any) -> list[RemotePathMapping]:
     return mappings
 
 
-def remap_remote_to_local(*, mappings: Iterable[RemotePathMapping], host: str, remote_path: str | Path) -> Path:
+def remap_remote_to_local_with_match(
+    *,
+    mappings: Iterable[RemotePathMapping],
+    host: str,
+    remote_path: str | Path,
+) -> tuple[Path, bool]:
     host_normalized = _normalize_host(host)
     remote_normalized = _normalize_prefix(str(remote_path))
 
     if not remote_normalized:
-        return Path(str(remote_path))
+        return Path(str(remote_path)), False
+
+    # Windows paths are case-insensitive, so we need case-insensitive matching
+    # for paths that look like Windows paths (e.g., D:/Torrents)
+    is_windows = _is_windows_path(remote_normalized)
 
     for mapping in mappings:
         if _normalize_host(mapping.host) != host_normalized:
@@ -76,16 +90,36 @@ def remap_remote_to_local(*, mappings: Iterable[RemotePathMapping], host: str, r
         if not remote_prefix:
             continue
 
-        if remote_normalized == remote_prefix or remote_normalized.startswith(remote_prefix + "/"):
+        # For Windows paths, do case-insensitive prefix matching
-            remainder = remote_normalized[len(remote_prefix) :]
+        if is_windows:
+            remote_lower = remote_normalized.lower()
+            prefix_lower = remote_prefix.lower()
+            matches = remote_lower == prefix_lower or remote_lower.startswith(prefix_lower + "/")
+        else:
+            matches = remote_normalized == remote_prefix or remote_normalized.startswith(remote_prefix + "/")
+
+        if matches:
+            # Use the length of the original prefix to extract remainder
+            # This preserves the original case in folder names
+            remainder = remote_normalized[len(remote_prefix):]
             local_prefix = _normalize_prefix(mapping.local_path)
 
             if remainder.startswith("/"):
                 remainder = remainder[1:]
 
-            return Path(local_prefix) / remainder if remainder else Path(local_prefix)
+            remapped = Path(local_prefix) / remainder if remainder else Path(local_prefix)
+            return remapped, True
 
-    return Path(remote_normalized)
+    return Path(remote_normalized), False
+
+
+def remap_remote_to_local(*, mappings: Iterable[RemotePathMapping], host: str, remote_path: str | Path) -> Path:
+    remapped, _ = remap_remote_to_local_with_match(
+        mappings=mappings,
+        host=host,
+        remote_path=remote_path,
+    )
+    return remapped
 
 
 def get_client_host_identifier(client: Any) -> Optional[str]:

shelfmark/core/utils.py

@@ -5,6 +5,52 @@ from pathlib import Path
 from typing import Optional
 
 
+def normalize_http_url(
+    url: Optional[str],
+    *,
+    default_scheme: str = "http",
+    strip_trailing_slash: bool = True,
+    allow_special: tuple[str, ...] = (),
+) -> str:
+    """Normalize a configured HTTP URL for requests and links."""
+    if not isinstance(url, str):
+        return ""
+
+    normalized = url.strip()
+    if not normalized:
+        return ""
+
+    if (normalized.startswith("\"") and normalized.endswith("\"")) or (
+        normalized.startswith("'") and normalized.endswith("'")
+    ):
+        normalized = normalized[1:-1].strip()
+        if not normalized:
+            return ""
+
+    if allow_special:
+        special_map = {
+            value.lower(): value
+            for value in allow_special
+            if isinstance(value, str)
+        }
+        special_match = special_map.get(normalized.lower())
+        if special_match is not None:
+            return special_match
+
+    if normalized.startswith(("/", "./", "../")):
+        return normalized
+
+    if "://" not in normalized:
+        scheme = default_scheme.strip().rstrip(":/")
+        if scheme:
+            normalized = f"{scheme}://{normalized}"
+
+    if strip_trailing_slash:
+        normalized = normalized.rstrip("/")
+
+    return normalized
+
+
 def is_audiobook(content_type: Optional[str]) -> bool:
     """Check if content type indicates an audiobook."""
     return bool(content_type and "audiobook" in content_type.lower())

shelfmark/download/network.py

@@ -12,6 +12,7 @@ import ipaddress
 
 from shelfmark.core.logger import setup_logger
 from shelfmark.core.config import config as app_config
+from shelfmark.core.utils import normalize_http_url
 from datetime import datetime, timedelta
 
 
@@ -729,7 +730,14 @@ def rotate_dns_and_reset_aa() -> bool:
         return False
     # Reset AA URL to first available auto option if using auto AA
     global _aa_base_url, _current_aa_url_index
-    configured_url = app_config.get("AA_BASE_URL", "auto")
+    configured_url = normalize_http_url(
+        app_config.get("AA_BASE_URL", "auto"),
+        default_scheme="https",
+        allow_special=("auto",),
+    )
+    if not configured_url:
+        configured_url = "auto"
+
     if configured_url == "auto" or _aa_base_url in _aa_urls:
         _current_aa_url_index = 0
         _aa_base_url = _aa_urls[0] if _aa_urls else "https://annas-archive.se"
@@ -900,7 +908,13 @@ def _initialize_aa_state() -> None:
     _aa_urls = _build_aa_urls()
 
     # Get configured base URL from config
-    configured_url = app_config.get("AA_BASE_URL", "auto")
+    configured_url = normalize_http_url(
+        app_config.get("AA_BASE_URL", "auto"),
+        default_scheme="https",
+        allow_special=("auto",),
+    )
+    if not configured_url:
+        configured_url = "auto"
 
     if configured_url == "auto":
         if state.get('aa_base_url') and state['aa_base_url'] in _aa_urls:

shelfmark/download/postprocess/transfer.py

@@ -194,7 +194,7 @@ def transfer_book_files(
             metadata = build_metadata_dict(task)
             extension = book_file.suffix.lstrip(".") or task.format or ""
 
-            filename = parse_naming_template(template, metadata)
+            filename = parse_naming_template(template, metadata, allow_path_separators=False)
             filename = Path(filename).name if filename else ""
             if filename and extension:
                 filename = f"{sanitize_filename(filename)}.{extension}"

shelfmark/main.py

@@ -1430,10 +1430,26 @@ def api_releases() -> Union[Response, Tuple[Response, int]]:
             try:
                 source = get_source(source_name)
                 source_instances[source_name] = source
-                logger.debug(f"Searching {source_name} for '{book.title}' by {book.authors} (expand={expand_search}, content_type={content_type})")
+
                 from shelfmark.release_sources.search_plan import build_release_search_plan
 
                 plan = build_release_search_plan(book, languages=languages, manual_query=manual_query)
+
+                if plan.manual_query:
+                    planned_query = plan.manual_query
+                    planned_query_type = "manual"
+                elif not expand_search and plan.isbn_candidates:
+                    planned_query = plan.isbn_candidates[0]
+                    planned_query_type = "isbn"
+                else:
+                    planned_query = plan.primary_query
+                    planned_query_type = "title_author"
+
+                logger.debug(
+                    f"Searching {source_name}: {planned_query_type}='{planned_query}' "
+                    f"(title='{book.title}', authors={book.authors}, expand={expand_search}, content_type={content_type})"
+                )
+
                 releases = source.search(book, plan, expand_search=expand_search, content_type=content_type)
                 all_releases.extend(releases)
             except ValueError:

shelfmark/metadata_providers/hardcover.py

@@ -208,7 +208,27 @@ def _compute_search_title(
 
     # Prefer subtitle when it looks like the real title.
     if normalized_subtitle and not _is_probably_series_position(normalized_subtitle):
-        # If title contains the subtitle, this is likely "Series: Subtitle".
+        match = re.match(r"^(.+?)\s*:\s*(.+)$", normalized_title)
+        if match:
+            prefix = match.group(1).strip()
+            suffix = _strip_parenthetical_suffix(match.group(2).strip())
+
+            prefix_words = len(prefix.split()) if prefix else 0
+            subtitle_words = len(normalized_subtitle.split())
+
+            series_normalized = " ".join(series_name.split()).strip() if series_name else ""
+            if series_normalized and prefix.lower() == series_normalized.lower():
+                return normalized_subtitle
+
+            # If the subtitle is much longer than the prefix, treat it as a descriptive subtitle.
+            if prefix and subtitle_words >= (prefix_words + 4):
+                return prefix
+
+            # Otherwise assume "Series: Book Title" and prefer the subtitle.
+            if normalized_subtitle.lower() == suffix.lower() or normalized_subtitle.lower() in suffix.lower():
+                return normalized_subtitle
+
+        # Fallback: if title contains the subtitle, this is likely "Series: Subtitle".
         if normalized_subtitle.lower() in normalized_title.lower():
             return normalized_subtitle
 

shelfmark/release_sources/direct_download.py

@@ -1162,7 +1162,7 @@ class DirectDownloadSource(ReleaseSource):
         if not expand_search:
             isbn = plan.isbn_candidates[0] if plan.isbn_candidates else None
             if isbn:
-                logger.debug(f"Searching by ISBN: {isbn}")
+                logger.debug(f"Searching direct_download: isbn='{isbn}', langs={lang_filter}")
                 filters = SearchFilters(isbn=[isbn])
                 if lang_filter:
                     filters.lang = lang_filter
@@ -1191,7 +1191,7 @@ class DirectDownloadSource(ReleaseSource):
             if not query:
                 continue
 
-            logger.debug(f"Searching: query='{query}', langs={langs}")
+            logger.debug(f"Searching direct_download: title_author='{query}', langs={langs}")
             filters = SearchFilters(lang=langs) if langs else SearchFilters()
             try:
                 for bi in search_books(query, filters):

shelfmark/release_sources/prowlarr/api.py

@@ -5,6 +5,7 @@ from typing import Any, Dict, List, Optional, Tuple
 import requests
 
 from shelfmark.core.logger import setup_logger
+from shelfmark.core.utils import normalize_http_url
 
 logger = setup_logger(__name__)
 
@@ -13,7 +14,7 @@ class ProwlarrClient:
     """Client for interacting with the Prowlarr API."""
 
     def __init__(self, url: str, api_key: str, timeout: int = 30):
-        self.base_url = url.rstrip("/")
+        self.base_url = normalize_http_url(url)
         self.api_key = api_key
         self.timeout = timeout
         self._session = requests.Session()

shelfmark/release_sources/prowlarr/clients/deluge.py

@@ -19,6 +19,7 @@ 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.release_sources.prowlarr.clients import (
     DownloadClient,
     DownloadStatus,
@@ -65,6 +66,10 @@ class DelugeClient(DownloadClient):
 
         # Allow DELUGE_HOST to be either a hostname OR a full URL
         # (useful when Deluge is behind a reverse proxy path).
+        raw_host = normalize_http_url(raw_host, strip_trailing_slash=False) if raw_host else ""
+        if not raw_host:
+            raise ValueError("DELUGE_HOST is invalid")
+
         host = raw_host
         port = int(raw_port)
 

shelfmark/release_sources/prowlarr/clients/nzbget.py

@@ -11,6 +11,7 @@ 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.release_sources.prowlarr.clients import (
     DownloadClient,
     DownloadStatus,
@@ -30,11 +31,13 @@ class NZBGetClient(DownloadClient):
 
     def __init__(self):
         """Initialize NZBGet client with settings from config."""
-        url = config.get("NZBGET_URL", "")
+        raw_url = config.get("NZBGET_URL", "")
-        if not url:
+        if not raw_url:
             raise ValueError("NZBGET_URL is required")
 
-        self.url = url.rstrip("/")
+        self.url = normalize_http_url(raw_url)
+        if not self.url:
+            raise ValueError("NZBGET_URL is invalid")
         self.username = config.get("NZBGET_USERNAME", "nzbget")
         self.password = config.get("NZBGET_PASSWORD", "")
         self._category = config.get("NZBGET_CATEGORY", "Books")
@@ -43,7 +46,7 @@ class NZBGetClient(DownloadClient):
     def is_configured() -> bool:
         """Check if NZBGet is configured and selected as the usenet client."""
         client = config.get("PROWLARR_USENET_CLIENT", "")
-        url = config.get("NZBGET_URL", "")
+        url = normalize_http_url(config.get("NZBGET_URL", ""))
         return client == "nzbget" and bool(url)
 
     @with_retry()

shelfmark/release_sources/prowlarr/clients/qbittorrent.py

@@ -6,6 +6,7 @@ from typing import Optional, Tuple
 
 from shelfmark.core.config import config
 from shelfmark.core.logger import setup_logger
+from shelfmark.core.utils import normalize_http_url
 from shelfmark.release_sources.prowlarr.clients import (
     DownloadClient,
     DownloadStatus,
@@ -91,13 +92,19 @@ class QBittorrentClient(DownloadClient):
         # Lazy import to avoid dependency issues if not using torrents
         from qbittorrentapi import Client
 
-        url = config.get("QBITTORRENT_URL", "")
+        raw_url = config.get("QBITTORRENT_URL", "")
-        if not url:
+        if not raw_url:
             raise ValueError("QBITTORRENT_URL is required")
 
-        self._base_url = url.rstrip("/")
+        # We use `_base_url` for direct HTTP calls, so it must be a fully-qualified URL.
+        self._base_url = normalize_http_url(raw_url)
+        if not self._base_url:
+            raise ValueError("QBITTORRENT_URL is invalid")
+
+        # qbittorrent-api accepts either a full URL or host:port; prefer the normalized URL
+        # for consistency.
         self._client = Client(
-            host=url,
+            host=self._base_url,
             username=config.get("QBITTORRENT_USERNAME", ""),
             password=config.get("QBITTORRENT_PASSWORD", ""),
         )
@@ -197,13 +204,20 @@ class QBittorrentClient(DownloadClient):
             return [], f"qBittorrent request timed out at {self._base_url}"
         except Exception as e:
             logger.debug(f"Failed to get torrents info: {e}")
+            # requests raises InvalidSchema when the base URL doesn't include http(s)
+            if type(e).__name__ == "InvalidSchema":
+                return (
+                    [],
+                    "qBittorrent URL is invalid (missing http:// or https://). "
+                    f"Configured: {self._base_url}",
+                )
             return [], f"qBittorrent API error: {type(e).__name__}: {e}"
 
     @staticmethod
     def is_configured() -> bool:
         """Check if qBittorrent is configured and selected as the torrent client."""
         client = config.get("PROWLARR_TORRENT_CLIENT", "")
-        url = config.get("QBITTORRENT_URL", "")
+        url = normalize_http_url(config.get("QBITTORRENT_URL", ""))
         return client == "qbittorrent" and bool(url)
 
     def test_connection(self) -> Tuple[bool, str]:

shelfmark/release_sources/prowlarr/clients/rtorrent.py

@@ -9,6 +9,7 @@ from urllib.parse import urlparse
 
 from shelfmark.core.config import config
 from shelfmark.core.logger import setup_logger
+from shelfmark.core.utils import normalize_http_url
 from shelfmark.release_sources.prowlarr.clients import (
     DownloadClient,
     DownloadStatus,
@@ -32,11 +33,13 @@ class RTorrentClient(DownloadClient):
         """Initialize rTorrent client with settings from config."""
         from xmlrpc.client import ServerProxy
 
-        url = config.get("RTORRENT_URL", "")
+        raw_url = config.get("RTORRENT_URL", "")
-        if not url:
+        if not raw_url:
             raise ValueError("RTORRENT_URL is required")
 
-        self._base_url = url.rstrip("/")
+        self._base_url = normalize_http_url(raw_url)
+        if not self._base_url:
+            raise ValueError("RTORRENT_URL is invalid")
 
         username = config.get("RTORRENT_USERNAME", "")
         password = config.get("RTORRENT_PASSWORD", "")
@@ -55,7 +58,7 @@ class RTorrentClient(DownloadClient):
     def is_configured() -> bool:
         """Check if rTorrent is configured and selected as the torrent client."""
         client = config.get("PROWLARR_TORRENT_CLIENT", "")
-        url = config.get("RTORRENT_URL", "")
+        url = normalize_http_url(config.get("RTORRENT_URL", ""))
         return client == "rtorrent" and bool(url)
 
     def test_connection(self) -> Tuple[bool, str]:

shelfmark/release_sources/prowlarr/clients/sabnzbd.py

@@ -10,6 +10,7 @@ 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.release_sources.prowlarr.clients import (
     DownloadClient,
     DownloadStatus,
@@ -99,15 +100,17 @@ class SABnzbdClient(DownloadClient):
 
     def __init__(self):
         """Initialize SABnzbd client with settings from config."""
-        url = config.get("SABNZBD_URL", "")
+        raw_url = config.get("SABNZBD_URL", "")
-        if not url:
+        if not raw_url:
             raise ValueError("SABNZBD_URL is required")
 
         api_key = config.get("SABNZBD_API_KEY", "")
         if not api_key:
             raise ValueError("SABNZBD_API_KEY is required")
 
-        self.url = url.rstrip("/")
+        self.url = normalize_http_url(raw_url)
+        if not self.url:
+            raise ValueError("SABNZBD_URL is invalid")
         self.api_key = api_key
         self._category = config.get("SABNZBD_CATEGORY", "books")
 
@@ -115,7 +118,7 @@ class SABnzbdClient(DownloadClient):
     def is_configured() -> bool:
         """Check if SABnzbd is configured and selected as the usenet client."""
         client = config.get("PROWLARR_USENET_CLIENT", "")
-        url = config.get("SABNZBD_URL", "")
+        url = normalize_http_url(config.get("SABNZBD_URL", ""))
         api_key = config.get("SABNZBD_API_KEY", "")
         return client == "sabnzbd" and bool(url) and bool(api_key)
 

shelfmark/release_sources/prowlarr/clients/transmission.py

@@ -9,6 +9,7 @@ from typing import Optional, Tuple
 
 from shelfmark.core.config import config
 from shelfmark.core.logger import setup_logger
+from shelfmark.core.utils import normalize_http_url
 from shelfmark.release_sources.prowlarr.clients import (
     DownloadClient,
     DownloadStatus,
@@ -33,10 +34,14 @@ class TransmissionClient(DownloadClient):
         """Initialize Transmission client with settings from config."""
         from transmission_rpc import Client
 
-        url = config.get("TRANSMISSION_URL", "")
+        raw_url = config.get("TRANSMISSION_URL", "")
-        if not url:
+        if not raw_url:
             raise ValueError("TRANSMISSION_URL is required")
 
+        url = normalize_http_url(raw_url)
+        if not url:
+            raise ValueError("TRANSMISSION_URL is invalid")
+
         username = config.get("TRANSMISSION_USERNAME", "")
         password = config.get("TRANSMISSION_PASSWORD", "")
 
@@ -56,7 +61,7 @@ class TransmissionClient(DownloadClient):
     def is_configured() -> bool:
         """Check if Transmission is configured and selected as the torrent client."""
         client = config.get("PROWLARR_TORRENT_CLIENT", "")
-        url = config.get("TRANSMISSION_URL", "")
+        url = normalize_http_url(config.get("TRANSMISSION_URL", ""))
         return client == "transmission" and bool(url)
 
     def test_connection(self) -> Tuple[bool, str]:

shelfmark/release_sources/prowlarr/handler.py

@@ -196,7 +196,7 @@ class ProwlarrHandler(DownloadHandler):
 
                 # If already complete, skip straight to file handling
                 if existing_status.complete:
-                    logger.info(f"Existing download is complete, copying file directly")
+                    logger.info("Existing download is complete, copying file directly")
                     status_callback("resolving", "Found existing download, copying to library")
 
                     source_path = client.get_download_path(download_id)
@@ -213,8 +213,74 @@ class ProwlarrHandler(DownloadHandler):
                         )
                         return None
 
+                    from shelfmark.core.path_mappings import (
+                        get_client_host_identifier,
+                        parse_remote_path_mappings,
+                        remap_remote_to_local_with_match,
+                    )
+
+                    source_path_obj = Path(source_path)
+                    host = get_client_host_identifier(client) or ""
+                    mapping_value = config.get("PROWLARR_REMOTE_PATH_MAPPINGS", [])
+                    mappings = parse_remote_path_mappings(mapping_value)
+                    remapped, matched_mapping = remap_remote_to_local_with_match(
+                        mappings=mappings,
+                        host=host,
+                        remote_path=source_path_obj,
+                    )
+
+                    if matched_mapping:
+                        if remapped.exists():
+                            logger.info(
+                                "Remapped existing download path for %s (%s): %s -> %s",
+                                client.name,
+                                download_id,
+                                source_path_obj,
+                                remapped,
+                            )
+                            source_path_obj = remapped
+                        else:
+                            logger.error(
+                                f"Download path does not exist after remapping: {source_path} -> {remapped}. "
+                                f"Client: {client.name}, ID: {download_id}. "
+                                f"Check that the local path in your mapping is mounted correctly."
+                            )
+                            status_callback(
+                                "error",
+                                f"Remapped path '{remapped}' does not exist. "
+                                f"Check your Docker volume mounts match the Local Path in Settings > Advanced > Remote Path Mappings.",
+                            )
+                            return None
+                    elif mappings:
+                        if source_path_obj.exists():
+                            logger.info(
+                                "No remote path mapping matched for %s (%s); using client path: %s",
+                                client.name,
+                                download_id,
+                                source_path_obj,
+                            )
+                        else:
+                            hint = _diagnose_path_issue(source_path)
+                            logger.error(
+                                f"Download path does not exist and no remote path mapping matched for {client.name} "
+                                f"({download_id}): {source_path}. {hint}"
+                            )
+                            status_callback(
+                                "error",
+                                f"{hint} No remote path mapping matched for client '{client.name}'.",
+                            )
+                            return None
+                    elif not source_path_obj.exists():
+                        hint = _diagnose_path_issue(source_path)
+                        logger.error(
+                            f"Download path does not exist: {source_path}. "
+                            f"Client: {client.name}, ID: {download_id}. {hint}"
+                        )
+                        status_callback("error", hint)
+                        return None
+
                     result = self._handle_completed_file(
-                        source_path=Path(source_path),
+                        source_path=source_path_obj,
                         protocol=protocol,
                         task=task,
                         status_callback=status_callback,
@@ -395,21 +461,39 @@ class ProwlarrHandler(DownloadHandler):
             from shelfmark.core.path_mappings import (
                 get_client_host_identifier,
                 parse_remote_path_mappings,
-                remap_remote_to_local,
+                remap_remote_to_local_with_match,
             )
 
             source_path_obj = Path(source_path)
-            if not source_path_obj.exists():
             host = get_client_host_identifier(client) or ""
             mapping_value = config.get("PROWLARR_REMOTE_PATH_MAPPINGS", [])
             mappings = parse_remote_path_mappings(mapping_value)
-                remapped = remap_remote_to_local(
+
+            logger.debug(
+                "Attempting path remap: client=%s, host=%s, path=%s, mappings=%s",
+                client.name,
+                host,
+                source_path_obj,
+                [(m.host, m.remote_path, m.local_path) for m in mappings],
+            )
+
+            remapped, matched_mapping = remap_remote_to_local_with_match(
                 mappings=mappings,
                 host=host,
                 remote_path=source_path_obj,
             )
 
-                if remapped != source_path_obj and remapped.exists():
+            logger.debug(
+                "Remap result: %s -> %s (exists=%s, changed=%s, matched=%s)",
+                source_path_obj,
+                remapped,
+                remapped.exists(),
+                remapped != source_path_obj,
+                matched_mapping,
+            )
+
+            if matched_mapping:
+                if remapped.exists():
                     logger.info(
                         "Remapped download path for %s (%s): %s -> %s",
                         client.name,
@@ -419,6 +503,37 @@ class ProwlarrHandler(DownloadHandler):
                     )
                     source_path_obj = remapped
                 else:
+                    logger.error(
+                        f"Download path does not exist after remapping: {source_path} -> {remapped}. "
+                        f"Client: {client.name}, ID: {download_id}. "
+                        f"Check that the local path in your mapping is mounted correctly."
+                    )
+                    status_callback(
+                        "error",
+                        f"Remapped path '{remapped}' does not exist. "
+                        f"Check your Docker volume mounts match the Local Path in Settings > Advanced > Remote Path Mappings.",
+                    )
+                    return None
+            elif mappings:
+                if source_path_obj.exists():
+                    logger.info(
+                        "No remote path mapping matched for %s (%s); using client path: %s",
+                        client.name,
+                        download_id,
+                        source_path_obj,
+                    )
+                else:
+                    hint = _diagnose_path_issue(source_path)
+                    logger.error(
+                        f"Download path does not exist and no remote path mapping matched for {client.name} "
+                        f"({download_id}): {source_path}. {hint}"
+                    )
+                    status_callback(
+                        "error",
+                        f"{hint} No remote path mapping matched for client '{client.name}'.",
+                    )
+                    return None
+            elif not source_path_obj.exists():
                 hint = _diagnose_path_issue(source_path)
                 logger.error(
                     f"Download path does not exist: {source_path}. "

shelfmark/release_sources/prowlarr/settings.py

@@ -6,7 +6,7 @@ Registers Prowlarr settings as a group with multiple tabs:
 - Download Clients: Torrent and usenet client settings
 """
 
-from typing import Any, Dict, List
+from typing import Any, Dict, List, Optional
 
 from shelfmark.core.settings_registry import (
     register_group,
@@ -19,6 +19,7 @@ from shelfmark.core.settings_registry import (
     SelectField,
     MultiSelectField,
 )
+from shelfmark.core.utils import normalize_http_url
 
 
 # ==================== Dynamic Options Loaders ====================
@@ -34,10 +35,14 @@ def _get_indexer_options() -> List[Dict[str, str]]:
 
     logger = setup_logger(__name__)
 
-    url = config.get("PROWLARR_URL", "")
+    raw_url = config.get("PROWLARR_URL", "")
     api_key = config.get("PROWLARR_API_KEY", "")
 
-    if not url or not api_key:
+    if not raw_url or not api_key:
+        return []
+
+    url = normalize_http_url(raw_url)
+    if not url:
         return []
 
     try:
@@ -72,7 +77,7 @@ def _get_indexer_options() -> List[Dict[str, str]]:
 
 # ==================== Test Connection Callbacks ====================
 
-def _test_prowlarr_connection(current_values: Dict[str, Any] = None) -> Dict[str, Any]:
+def _test_prowlarr_connection(current_values: Optional[Dict[str, Any]] = None) -> Dict[str, Any]:
     """Test the Prowlarr connection using current form values."""
     from shelfmark.core.config import config
     from shelfmark.core.logger import setup_logger
@@ -81,11 +86,15 @@ def _test_prowlarr_connection(current_values: Dict[str, Any] = None) -> Dict[str
     logger = setup_logger(__name__)
     current_values = current_values or {}
 
-    url = current_values.get("PROWLARR_URL") or config.get("PROWLARR_URL", "")
+    raw_url = current_values.get("PROWLARR_URL") or config.get("PROWLARR_URL", "")
     api_key = current_values.get("PROWLARR_API_KEY") or config.get("PROWLARR_API_KEY", "")
 
-    if not url:
+    if not raw_url:
         return {"success": False, "message": "Prowlarr URL is required"}
+
+    url = normalize_http_url(raw_url)
+    if not url:
+        return {"success": False, "message": "Prowlarr URL is invalid"}
     if not api_key:
         return {"success": False, "message": "API key is required"}
 
@@ -97,22 +106,26 @@ def _test_prowlarr_connection(current_values: Dict[str, Any] = None) -> Dict[str
         return {"success": False, "message": f"Connection failed: {str(e)}"}
 
 
-def _test_qbittorrent_connection(current_values: Dict[str, Any] = None) -> Dict[str, Any]:
+def _test_qbittorrent_connection(current_values: Optional[Dict[str, Any]] = None) -> Dict[str, Any]:
     """Test the qBittorrent connection using current form values."""
     from shelfmark.core.config import config
 
     current_values = current_values or {}
 
-    url = current_values.get("QBITTORRENT_URL") or config.get("QBITTORRENT_URL", "")
+    raw_url = current_values.get("QBITTORRENT_URL") or config.get("QBITTORRENT_URL", "")
     username = current_values.get("QBITTORRENT_USERNAME") or config.get("QBITTORRENT_USERNAME", "")
     password = current_values.get("QBITTORRENT_PASSWORD") or config.get("QBITTORRENT_PASSWORD", "")
 
-    if not url:
+    if not raw_url:
         return {"success": False, "message": "qBittorrent URL is required"}
 
     try:
         from qbittorrentapi import Client
 
+        url = normalize_http_url(raw_url)
+        if not url:
+            return {"success": False, "message": "qBittorrent URL is invalid"}
+
         client = Client(host=url, username=username, password=password)
         client.auth_log_in()
         api_version = client.app.web_api_version
@@ -123,7 +136,7 @@ def _test_qbittorrent_connection(current_values: Dict[str, Any] = None) -> Dict[
         return {"success": False, "message": f"Connection failed: {str(e)}"}
 
 
-def _test_transmission_connection(current_values: Dict[str, Any] = None) -> Dict[str, Any]:
+def _test_transmission_connection(current_values: Optional[Dict[str, Any]] = None) -> Dict[str, Any]:
     """Test the Transmission connection using current form values."""
     from shelfmark.core.config import config
     from shelfmark.release_sources.prowlarr.clients.torrent_utils import (
@@ -132,13 +145,17 @@ def _test_transmission_connection(current_values: Dict[str, Any] = None) -> Dict
 
     current_values = current_values or {}
 
-    url = current_values.get("TRANSMISSION_URL") or config.get("TRANSMISSION_URL", "")
+    raw_url = current_values.get("TRANSMISSION_URL") or config.get("TRANSMISSION_URL", "")
     username = current_values.get("TRANSMISSION_USERNAME") or config.get("TRANSMISSION_USERNAME", "")
     password = current_values.get("TRANSMISSION_PASSWORD") or config.get("TRANSMISSION_PASSWORD", "")
 
-    if not url:
+    if not raw_url:
         return {"success": False, "message": "Transmission URL is required"}
 
+    url = normalize_http_url(raw_url)
+    if not url:
+        return {"success": False, "message": "Transmission URL is invalid"}
+
     try:
         from transmission_rpc import Client
 
@@ -161,7 +178,7 @@ def _test_transmission_connection(current_values: Dict[str, Any] = None) -> Dict
         return {"success": False, "message": f"Connection failed: {str(e)}"}
 
 
-def _test_deluge_connection(current_values: Dict[str, Any] = None) -> Dict[str, Any]:
+def _test_deluge_connection(current_values: Optional[Dict[str, Any]] = None) -> Dict[str, Any]:
     """Test Deluge Web UI JSON-RPC connection using current form values."""
     from urllib.parse import urlparse
 
@@ -180,6 +197,10 @@ def _test_deluge_connection(current_values: Dict[str, Any] = None) -> Dict[str,
         return {"success": False, "message": "Deluge password is required"}
 
     raw_host = str(raw_host)
+    raw_host = normalize_http_url(raw_host, strip_trailing_slash=False) if raw_host else ""
+    if not raw_host:
+        return {"success": False, "message": "Deluge host is invalid"}
+
     raw_port = str(raw_port or "8112")
 
     scheme = "http"
@@ -256,7 +277,7 @@ def _test_deluge_connection(current_values: Dict[str, Any] = None) -> Dict[str,
         return {"success": False, "message": f"Connection failed: {str(e)}"}
 
 
-def _test_rtorrent_connection(current_values: Dict[str, Any] = None) -> Dict[str, Any]:
+def _test_rtorrent_connection(current_values: Optional[Dict[str, Any]] = None) -> Dict[str, Any]:
     """Test the rTorrent connection using current form values."""
     from shelfmark.core.config import config
     from urllib.parse import urlparse
@@ -264,13 +285,17 @@ def _test_rtorrent_connection(current_values: Dict[str, Any] = None) -> Dict[str
 
     current_values = current_values or {}
 
-    url = current_values.get("RTORRENT_URL") or config.get("RTORRENT_URL", "")
+    raw_url = current_values.get("RTORRENT_URL") or config.get("RTORRENT_URL", "")
     username = current_values.get("RTORRENT_USERNAME") or config.get("RTORRENT_USERNAME", "")
     password = current_values.get("RTORRENT_PASSWORD") or config.get("RTORRENT_PASSWORD", "")
 
-    if not url:
+    if not raw_url:
         return {"success": False, "message": "rTorrent URL is required"}
 
+    url = normalize_http_url(raw_url)
+    if not url:
+        return {"success": False, "message": "rTorrent URL is invalid"}
+
     try:
         # Add HTTP auth to URL if credentials provided
         if username and password:
@@ -284,20 +309,24 @@ def _test_rtorrent_connection(current_values: Dict[str, Any] = None) -> Dict[str
         return {"success": False, "message": f"Connection failed: {str(e)}"}
 
 
-def _test_nzbget_connection(current_values: Dict[str, Any] = None) -> Dict[str, Any]:
+def _test_nzbget_connection(current_values: Optional[Dict[str, Any]] = None) -> Dict[str, Any]:
     """Test the NZBGet connection using current form values."""
     import requests
     from shelfmark.core.config import config
 
     current_values = current_values or {}
 
-    url = current_values.get("NZBGET_URL") or config.get("NZBGET_URL", "")
+    raw_url = current_values.get("NZBGET_URL") or config.get("NZBGET_URL", "")
     username = current_values.get("NZBGET_USERNAME") or config.get("NZBGET_USERNAME", "nzbget")
     password = current_values.get("NZBGET_PASSWORD") or config.get("NZBGET_PASSWORD", "")
 
-    if not url:
+    if not raw_url:
         return {"success": False, "message": "NZBGet URL is required"}
 
+    url = normalize_http_url(raw_url)
+    if not url:
+        return {"success": False, "message": "NZBGet URL is invalid"}
+
     try:
         rpc_url = f"{url.rstrip('/')}/jsonrpc"
         payload = {"jsonrpc": "2.0", "method": "status", "params": [], "id": 1}
@@ -316,18 +345,22 @@ def _test_nzbget_connection(current_values: Dict[str, Any] = None) -> Dict[str,
         return {"success": False, "message": f"Connection failed: {str(e)}"}
 
 
-def _test_sabnzbd_connection(current_values: Dict[str, Any] = None) -> Dict[str, Any]:
+def _test_sabnzbd_connection(current_values: Optional[Dict[str, Any]] = None) -> Dict[str, Any]:
     """Test the SABnzbd connection using current form values."""
     import requests
     from shelfmark.core.config import config
 
     current_values = current_values or {}
 
-    url = current_values.get("SABNZBD_URL") or config.get("SABNZBD_URL", "")
+    raw_url = current_values.get("SABNZBD_URL") or config.get("SABNZBD_URL", "")
     api_key = current_values.get("SABNZBD_API_KEY") or config.get("SABNZBD_API_KEY", "")
 
-    if not url:
+    if not raw_url:
         return {"success": False, "message": "SABnzbd URL is required"}
+
+    url = normalize_http_url(raw_url)
+    if not url:
+        return {"success": False, "message": "SABnzbd URL is invalid"}
     if not api_key:
         return {"success": False, "message": "API key is required"}
 
@@ -745,10 +778,10 @@ def prowlarr_clients_settings():
         SelectField(
             key="PROWLARR_USENET_ACTION",
             label="NZB Completion Action",
-            description="Copy files into your ingest folder, optionally cleaning up the usenet client",
+            description="Move deletes the job from your usenet client after import; Copy keeps it in the client",
             options=[
-                {"value": "move", "label": "Copy and remove from client"},
+                {"value": "move", "label": "Move"},
-                {"value": "copy", "label": "Copy (keep in client)"},
+                {"value": "copy", "label": "Copy"},
             ],
             default="move",
             show_when={"field": "PROWLARR_USENET_CLIENT", "notEmpty": True},

shelfmark/release_sources/prowlarr/source.py

@@ -23,6 +23,7 @@ from shelfmark.release_sources import (
     LeadingCellType,
 )
 from shelfmark.release_sources.prowlarr.api import ProwlarrClient
+from shelfmark.core.utils import normalize_http_url
 from shelfmark.release_sources.prowlarr.cache import cache_release
 from shelfmark.release_sources.prowlarr.utils import get_preferred_download_url, get_protocol
 
@@ -268,10 +269,14 @@ class ProwlarrSource(ReleaseSource):
 
     def _get_client(self) -> Optional[ProwlarrClient]:
         """Get a configured Prowlarr client or None if not configured."""
-        url = config.get("PROWLARR_URL", "")
+        raw_url = config.get("PROWLARR_URL", "")
         api_key = config.get("PROWLARR_API_KEY", "")
 
-        if not url or not api_key:
+        if not raw_url or not api_key:
+            return None
+
+        url = normalize_http_url(raw_url)
+        if not url:
             return None
 
         return ProwlarrClient(url, api_key)
@@ -313,7 +318,7 @@ class ProwlarrSource(ReleaseSource):
             logger.warning("Prowlarr not configured - skipping search")
             return []
 
-        queries = [v.query for v in plan.title_variants if v.query]
+        queries = [v.title for v in plan.title_variants if v.title]
         queries = [q for q in queries if q]
 
         if not queries and plan.isbn_candidates:
@@ -340,11 +345,22 @@ class ProwlarrSource(ReleaseSource):
             categories = None if expand_search else search_categories
             self.last_search_type = "expanded" if expand_search else "categories"
 
+        if plan.manual_query:
+            query_type = "manual"
+        elif not plan.title_variants and plan.isbn_candidates:
+            query_type = "isbn"
+        else:
+            query_type = "title"
+
         indexer_desc = f"indexers={indexer_ids}" if indexer_ids else "all enabled indexers"
         if len(queries) == 1:
-            logger.debug(f"Searching Prowlarr: query='{queries[0]}', {indexer_desc}, categories={categories}")
+            logger.debug(
+                f"Searching Prowlarr: {query_type}='{queries[0]}', {indexer_desc}, categories={categories}"
+            )
         else:
-            logger.debug(f"Searching Prowlarr: {len(queries)} queries, {indexer_desc}, categories={categories}")
+            logger.debug(
+                f"Searching Prowlarr: {query_type} ({len(queries)} variants), {indexer_desc}, categories={categories}"
+            )
 
         def search_indexers(query: str, cats: Optional[List[int]]) -> List[dict]:
             """Search indexers with given categories, collecting results."""
@@ -420,6 +436,6 @@ class ProwlarrSource(ReleaseSource):
         """Check if Prowlarr is enabled and configured."""
         if not config.get("PROWLARR_ENABLED", False):
             return False
-        url = config.get("PROWLARR_URL", "")
+        url = normalize_http_url(config.get("PROWLARR_URL", ""))
         api_key = config.get("PROWLARR_API_KEY", "")
         return bool(url and api_key)

src/frontend/src/components/Dropdown.tsx

@@ -189,7 +189,7 @@ export const Dropdown = ({
               panelDirection === 'down'
                 ? renderTrigger ? 'mt-2' : ''
                 : renderTrigger ? 'bottom-full mb-2' : 'bottom-full'
-            } border shadow-lg z-20 ${panelClassName || widthClassName}`}
+            } border z-20 ${panelDirection === 'down' ? 'shadow-lg' : ''} ${panelClassName || widthClassName}`}
             style={{
               background: 'var(--bg)',
               borderColor: 'var(--border-muted)',

src/frontend/src/components/ReleaseModal.tsx

@@ -673,6 +673,8 @@ export const ReleaseModal = ({
     setExpandedBySource({});
     setFormatFilter('');
     setLanguageFilter([LANGUAGE_OPTION_DEFAULT]);
+    setManualQuery('');
+    setShowManualQuery(false);
     setSearchStatus(null);
     lastStatusTimeRef.current = 0;
     pendingStatusRef.current = null;
@@ -1409,7 +1411,18 @@ export const ReleaseModal = ({
                     {/* Manual query button */}
                     <button
                       type="button"
-                      onClick={() => setShowManualQuery((prev) => !prev)}
+                      onClick={() => {
+                        setShowManualQuery((prev) => {
+                          const next = !prev;
+                          if (next && !manualQuery.trim()) {
+                            const baseTitle = book?.search_title || book?.title || '';
+                            const baseAuthor = book?.search_author || book?.author || '';
+                            const defaultQuery = `${baseTitle} ${baseAuthor}`.trim();
+                            setManualQuery(defaultQuery);
+                          }
+                          return next;
+                        });
+                      }}
                       className={`p-2.5 rounded-full transition-colors hover-surface text-gray-500 dark:text-gray-400 ${
                         manualQuery.trim() ? 'text-emerald-600 dark:text-emerald-400' : ''
                       }`}

src/frontend/src/components/settings/fields/HeadingField.tsx

@@ -5,7 +5,7 @@ interface HeadingFieldProps {
 }
 
 export const HeadingField = ({ field }: HeadingFieldProps) => (
-  <div className="pb-2">
+  <div className="pb-1 [&:not(:first-child)]:pt-5 [&:not(:first-child)]:mt-1 [&:not(:first-child)]:border-t [&:not(:first-child)]:border-black/10 [&:not(:first-child)]:dark:border-white/10">
     <h3 className="text-base font-semibold mb-1">{field.title}</h3>
     {field.description && (
       <p className="text-sm opacity-70">

tests/core/test_naming.py

@@ -251,13 +251,13 @@ class TestBuildLibraryPath:
 
     def test_path_traversal_prevented(self):
         """Test that path traversal is prevented."""
-        with pytest.raises(ValueError, match="traversal"):
+        path = build_library_path(
-            build_library_path(
             "/books",
             "{Author}/{Title}",
-                {"Author": "../../../etc", "Title": "passwd"},
+            {"Author": "../etc", "Title": "passwd"},
             extension="txt"
         )
+        assert path == Path("/books/etc/passwd.txt")
 
     def test_fallback_to_title(self):
         """Test fallback when template produces empty result."""
@@ -291,6 +291,7 @@ class TestSanitizeFilename:
         ('file"with"quotes', "file_with_quotes"),
         ("file<with>angles", "file_with_angles"),
         ("file|with|pipes", "file_with_pipes"),
+        ("file/with/slash", "file_with_slash"),
     ])
     def test_invalid_chars_replaced(self, input_name, expected):
         """Test that invalid characters are replaced."""

tests/metadata/test_hardcover_search_title.py

@@ -10,6 +10,15 @@ class TestHardcoverComputeSearchTitle:
             == "The Final Empire"
         )
 
+    def test_prefers_main_title_when_subtitle_is_descriptive(self):
+        assert (
+            _compute_search_title(
+                "The Cuckoo's Egg: Tracking a Spy Through the Maze of Computer Espionage",
+                "Tracking a Spy Through the Maze of Computer Espionage",
+            )
+            == "The Cuckoo's Egg"
+        )
+
     def test_does_not_use_subtitle_when_it_looks_like_series_position(self):
         assert _compute_search_title("The Stormlight Archive: Book 1", "Book 1") is None
         assert _compute_search_title("Some Series: Volume II", "Volume II") is None

tests/prowlarr/test_qbittorrent_client.py

@@ -146,7 +146,7 @@ class TestQBittorrentClientTestConnection:
     def test_test_connection_failure(self, monkeypatch):
         """Test failed connection."""
         config_values = {
-            "QBITTORRENT_URL": "http://localhost:8080",
+            "QBITTORRENT_URL": "localhost:8080",
             "QBITTORRENT_USERNAME": "admin",
             "QBITTORRENT_PASSWORD": "wrong",
             "QBITTORRENT_CATEGORY": "test",

tests/prowlarr/test_remote_path_mappings.py

@@ -89,3 +89,290 @@ def test_remaps_completed_path_when_remote_path_missing():
 
             assert result == str(local_file)
             assert task.original_download_path == str(local_file)
+
+
+def test_remap_prefers_mapping_when_original_exists():
+    with tempfile.TemporaryDirectory() as tmp_dir:
+        remote_dir = Path(tmp_dir) / "remote" / "downloads"
+        remote_dir.mkdir(parents=True)
+        remote_file = remote_dir / "book.epub"
+        remote_file.write_text("remote content")
+
+        local_dir = Path(tmp_dir) / "local" / "downloads"
+        local_dir.mkdir(parents=True)
+        local_file = local_dir / "book.epub"
+        local_file.write_text("local content")
+
+        remote_path = str(remote_file)
+
+        mock_client = MagicMock()
+        mock_client.name = "qbittorrent"
+        mock_client.find_existing.return_value = None
+        mock_client.add_download.return_value = "download_id"
+        mock_client.get_status.return_value = DownloadStatus(
+            progress=100,
+            state=DownloadState.COMPLETE,
+            message="Complete",
+            complete=True,
+            file_path=remote_path,
+        )
+        mock_client.get_download_path.return_value = remote_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.release_sources.prowlarr.handler.get_release",
+            return_value={
+                "protocol": "torrent",
+                "magnetUrl": "magnet:?xt=urn:btih:abc123",
+            },
+        ), patch(
+            "shelfmark.release_sources.prowlarr.handler.get_client",
+            return_value=mock_client,
+        ), patch(
+            "shelfmark.release_sources.prowlarr.handler.remove_release",
+        ), patch(
+            "shelfmark.release_sources.prowlarr.handler.config.get",
+            side_effect=config_get,
+        ), patch(
+            "shelfmark.release_sources.prowlarr.handler.POLL_INTERVAL",
+            0.01,
+        ):
+            handler = ProwlarrHandler()
+            task = DownloadTask(task_id="poll-mapping-prefer", source="prowlarr", title="Test Book")
+            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 == str(local_file)
+            assert task.original_download_path == str(local_file)
+
+
+def test_remap_fails_when_mapping_exists_but_path_missing():
+    with tempfile.TemporaryDirectory() as tmp_dir:
+        remote_dir = Path(tmp_dir) / "remote" / "downloads"
+        remote_dir.mkdir(parents=True)
+        remote_file = remote_dir / "book.epub"
+        remote_file.write_text("remote content")
+
+        local_dir = Path(tmp_dir) / "local" / "downloads"
+        local_dir.mkdir(parents=True)
+        local_file = local_dir / "book.epub"
+        remote_path = str(remote_file)
+
+        mock_client = MagicMock()
+        mock_client.name = "qbittorrent"
+        mock_client.find_existing.return_value = None
+        mock_client.add_download.return_value = "download_id"
+        mock_client.get_status.return_value = DownloadStatus(
+            progress=100,
+            state=DownloadState.COMPLETE,
+            message="Complete",
+            complete=True,
+            file_path=remote_path,
+        )
+        mock_client.get_download_path.return_value = remote_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.release_sources.prowlarr.handler.get_release",
+            return_value={
+                "protocol": "torrent",
+                "magnetUrl": "magnet:?xt=urn:btih:abc123",
+            },
+        ), patch(
+            "shelfmark.release_sources.prowlarr.handler.get_client",
+            return_value=mock_client,
+        ), patch(
+            "shelfmark.release_sources.prowlarr.handler.remove_release",
+        ), patch(
+            "shelfmark.release_sources.prowlarr.handler.config.get",
+            side_effect=config_get,
+        ), patch(
+            "shelfmark.release_sources.prowlarr.handler.POLL_INTERVAL",
+            0.01,
+        ):
+            handler = ProwlarrHandler()
+            task = DownloadTask(task_id="poll-mapping-missing", source="prowlarr", title="Test Book")
+            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 any(status == "error" for status, _ in recorder.status_updates)
+            assert not local_file.exists()
+
+
+def test_remaps_windows_path_to_linux():
+    """Test that Windows paths from external download clients are correctly remapped."""
+    with tempfile.TemporaryDirectory() as tmp_dir:
+        # Create a local file that represents the mounted path
+        local_file = Path(tmp_dir) / "downloads" / "Le Fay" / "book.epub"
+        local_file.parent.mkdir(parents=True)
+        local_file.write_text("test content")
+
+        # Windows path as reported by qBittorrent running on Windows
+        windows_path = r"D:\Torrents\Le Fay\book.epub"
+
+        mock_client = MagicMock()
+        mock_client.name = "qbittorrent"
+        mock_client.find_existing.return_value = None
+        mock_client.add_download.return_value = "download_id"
+        mock_client.get_status.return_value = DownloadStatus(
+            progress=100,
+            state=DownloadState.COMPLETE,
+            message="Complete",
+            complete=True,
+            file_path=windows_path,
+        )
+        mock_client.get_download_path.return_value = windows_path
+
+        def config_get(key: str, default=""):
+            if key == "PROWLARR_REMOTE_PATH_MAPPINGS":
+                return [
+                    {
+                        "host": "qbittorrent",
+                        # User enters Windows path in settings (with backslashes)
+                        "remotePath": r"D:\Torrents",
+                        "localPath": str(Path(tmp_dir) / "downloads"),
+                    }
+                ]
+            return default
+
+        with patch(
+            "shelfmark.release_sources.prowlarr.handler.get_release",
+            return_value={
+                "protocol": "torrent",
+                "magnetUrl": "magnet:?xt=urn:btih:abc123",
+            },
+        ), patch(
+            "shelfmark.release_sources.prowlarr.handler.get_client",
+            return_value=mock_client,
+        ), patch(
+            "shelfmark.release_sources.prowlarr.handler.remove_release",
+        ), patch(
+            "shelfmark.release_sources.prowlarr.handler.config.get",
+            side_effect=config_get,
+        ), patch(
+            "shelfmark.release_sources.prowlarr.handler.POLL_INTERVAL",
+            0.01,
+        ):
+            handler = ProwlarrHandler()
+            task = DownloadTask(task_id="windows-path-test", source="prowlarr", title="Test Book")
+            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 == str(local_file)
+            assert task.original_download_path == str(local_file)
+
+
+def test_windows_path_case_insensitive_matching():
+    """Test that Windows path matching is case-insensitive.
+
+    Users may enter paths in different case than what the download client reports.
+    For example, user enters 'd:\\torrents' but qBittorrent reports 'D:\\Torrents'.
+    """
+    with tempfile.TemporaryDirectory() as tmp_dir:
+        # Create a local file that represents the mounted path
+        local_file = Path(tmp_dir) / "downloads" / "Le Fay" / "book.epub"
+        local_file.parent.mkdir(parents=True)
+        local_file.write_text("test content")
+
+        # qBittorrent reports path with different case than user's setting
+        windows_path = r"D:\Torrents\Le Fay\book.epub"  # Mixed case
+
+        mock_client = MagicMock()
+        mock_client.name = "qbittorrent"
+        mock_client.find_existing.return_value = None
+        mock_client.add_download.return_value = "download_id"
+        mock_client.get_status.return_value = DownloadStatus(
+            progress=100,
+            state=DownloadState.COMPLETE,
+            message="Complete",
+            complete=True,
+            file_path=windows_path,
+        )
+        mock_client.get_download_path.return_value = windows_path
+
+        def config_get(key: str, default=""):
+            if key == "PROWLARR_REMOTE_PATH_MAPPINGS":
+                return [
+                    {
+                        "host": "qbittorrent",
+                        # User enters lowercase (as shown in UI screenshot)
+                        "remotePath": r"d:\torrents",
+                        "localPath": str(Path(tmp_dir) / "downloads"),
+                    }
+                ]
+            return default
+
+        with patch(
+            "shelfmark.release_sources.prowlarr.handler.get_release",
+            return_value={
+                "protocol": "torrent",
+                "magnetUrl": "magnet:?xt=urn:btih:abc123",
+            },
+        ), patch(
+            "shelfmark.release_sources.prowlarr.handler.get_client",
+            return_value=mock_client,
+        ), patch(
+            "shelfmark.release_sources.prowlarr.handler.remove_release",
+        ), patch(
+            "shelfmark.release_sources.prowlarr.handler.config.get",
+            side_effect=config_get,
+        ), patch(
+            "shelfmark.release_sources.prowlarr.handler.POLL_INTERVAL",
+            0.01,
+        ):
+            handler = ProwlarrHandler()
+            task = DownloadTask(task_id="case-insensitive-test", source="prowlarr", title="Test Book")
+            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 == str(local_file)
+            assert task.original_download_path == str(local_file)

tests/prowlarr/test_source.py

@@ -338,8 +338,8 @@ class TestProwlarrLocalizedQueries:
         plan = build_release_search_plan(book, languages=["en", "hu"])
         source.search(book, plan, content_type="ebook")
 
-        assert "The Lightning Thief Rick Riordan" in fake_client.queries
+        assert "The Lightning Thief" in fake_client.queries
-        assert "A villámtolvaj Rick Riordan" in fake_client.queries
+        assert "A villámtolvaj" in fake_client.queries
         assert len(fake_client.queries) == 2
 
     def test_search_does_not_override_search_title_for_english(self, monkeypatch):
@@ -384,6 +384,6 @@ class TestProwlarrLocalizedQueries:
         plan = build_release_search_plan(book, languages=["en", "hu"])
         source.search(book, plan, content_type="ebook")
 
-        assert "The Final Empire Brandon Sanderson" in fake_client.queries
+        assert "The Final Empire" in fake_client.queries
-        assert "A végső birodalom Brandon Sanderson" in fake_client.queries
+        assert "A végső birodalom" in fake_client.queries
-        assert "Mistborn: The Final Empire Brandon Sanderson" not in fake_client.queries
+        assert "Mistborn: The Final Empire" not in fake_client.queries

tests/release_sources/test_manual_query.py

@@ -25,4 +25,5 @@ class TestReleaseSearchPlanManualQuery:
         assert plan.isbn_candidates == []
         assert plan.languages == ["en", "hu"]
         assert [v.query for v in plan.title_variants] == ["some custom query"]
+        assert [v.title for v in plan.title_variants] == ["some custom query"]
         assert [(v.title, v.languages) for v in plan.grouped_title_variants] == [("some custom query", None)]

tests/release_sources/test_search_plan.py

@@ -32,6 +32,12 @@ class TestReleaseSearchPlan:
             "A végső birodalom Brandon Sanderson",
         ]
 
+        # Title-only variants are used by some sources (e.g. Prowlarr).
+        assert [v.title for v in plan.title_variants] == [
+            "The Final Empire",
+            "A végső birodalom",
+        ]
+
         assert [(v.title, v.languages) for v in plan.grouped_title_variants] == [
             ("The Final Empire", ["en"]),
             ("A végső birodalom", ["hu"]),
@@ -56,6 +62,9 @@ class TestReleaseSearchPlan:
         assert [v.query for v in plan.title_variants] == [
             "The Lightning Thief Rick Riordan",
         ]
+        assert [v.title for v in plan.title_variants] == [
+            "The Lightning Thief",
+        ]
         assert [(v.title, v.languages) for v in plan.grouped_title_variants] == [
             ("The Lightning Thief", None),
         ]