TorrentScript

qBittorrent post‑processing PowerShell script that imports newly downloaded media into Radarr (Movies) and Medusa or Sonarr (TV), while taking care of unpacking, remuxing, subtitle handling, cleanup, logging, and notifications.

⚠️ I'm not a programmer — use at your own risk 🙂. Tested on Windows with PowerShell 7+. Most paths below assume Windows. PowerShell 7 can run on Linux/macOS, but you’ll need equivalent tools and paths.

Description

The script processes torrent downloads by:

1. Unpacking or copying files to a Temporary Processing folder defined in config.json.
2. If the torrent label is a TV show (as defined in config.json under Label.TV):
   • Removes unwanted subtitle languages from MKV files.
   • Extracts subtitles in the wanted languages from MKV files.
   • Attempts to download missing subtitles from OpenSubtitles.
   • Converts subtitle language codes from ISO 639-2 (3-letter) to ISO 639-1 (2-letter) as per LanguageCodes.json.
   • Cleans up SRT subtitles using Subtitle Edit:
     • Removes Hearing Impaired subtitles.
     • Fixes common errors.
   • Starts Medusa or Sonarr import (as defined in config.json under ImportPrograms.TV).
3. If the torrent label is a Movie (as defined in config.json under Label.Movie):
   • Performs the same subtitle processing as above.
   • Starts Radarr import.
4. If there is another unrecognized label, the script will simply unpack/extract the files without further processing.
5. Cleans up the temporary folder after processing.
6. If no label is set or if the label is NoProcess, the script exits without processing.
7. Sends an email notification with the result.

Success

Medusa wrong host

Unrar error

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Installation

1. Create a config.json file in the root directory of the script.
   You can copy the provided config-sample.json and modify it as needed, see: https://github.com/Rouzax/TorrentScript/wiki/Configuration-file-explained for information

2. Set up qBittorrent to trigger the script after downloads finish
   The script should be triggered with the following command:

   powershell "C:\Scripts\TorrentScript\TorrentScript.ps1" -DownloadPath '%R' -DownloadLabel '%L' -TorrentHash '%I'

   

3. Enable per-torrent folders in qBittorrent
   This setting ensures that each torrent is placed inside its own folder.

4. Configure Remote Path Mapping in Radarr/Sonarr
   Radarr and Sonarr should not directly access qBittorrent's completed downloads folder. We need to trick them to look at an empty folder.

   Example:

   • qBittorrent root download path: C:\Torrent\Downloads\
   • Radarr Remote Path Mapping: C:\Torrent\Radarr\

   

   This ensures that Radarr and Sonarr only imports processed media via this script.

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Understanding RemotePath in config.json

The RemotePath setting in config.json ensures that Medusa, Radarr, and Sonarr receive the correct file paths when the script is executed from a different machine than where these applications are running.

How It Works

• If the script is triggered from a jumphost or another system different from the one hosting Medusa, Radarr, or Sonarr, the local file paths may not match what these applications expect.
• The RemotePath setting provides the correct path that Medusa, Radarr, or Sonarr should use to locate the processed files, even when the script itself is running from another machine.
• This is especially useful in setups using shared storage where multiple machines have access to the same files but reference them with different paths.

Example Scenario

Assume your downloads are stored on a network share at \\NAS\Downloads\, but:

• The jumphost (where the script runs) mounts this as D:\Downloads\
• The server running Medusa accesses the same location as C:\TEMP\Torrent\Medusa
• The server running Radarr expects C:\TEMP\Torrent\Radarr

Required External Tools

This script relies on the following external tools, which need to be installed and defined in config.json:

Tool	Purpose
WinRAR	Extracting archives
MKVMerge	Merging MKV streams
MKVExtract	Extracting subtitles from MKV
Subtitle Edit	Cleaning and renaming subtitles

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Advanced Features & Additional Notes

1. Multi-Instance Handling

• The script ensures that only one instance runs at a time.
• If multiple torrents complete while a process is already running, they wait until the first script execution is finished.

2. Subtitle Processing

• Extracts, cleans, and renames subtitles for supported languages.
• Uses LanguageCodes.json to convert 3-letter language codes to 2-letter codes.

3. Logging & Error Handling

• Logs are stored in a defined path (LogArchivePath in config.json).
• Errors are logged and can be sent via email notifications.

4. Medusa/Radarr/Sonarr Import

• The script interacts with Medusa or Sonarr and Radarr via their API using the provided API keys.
• It ensures that only properly processed files are imported.