hooks: improve torrent downloader

bin/hooks/qbittorrent-magnet.py

@@ -1,10 +1,10 @@
 #!/usr/bin/env python3
 # coding: utf-8
-from __future__ import print_function, unicode_literals
 
 import os
 import sys
 import json
+import shutil
 import subprocess as sp
 
 
@@ -12,6 +12,16 @@ _ = r"""
 start downloading a torrent by POSTing a magnet URL to copyparty,
 for example using 📟 (message-to-server-log) in the web-ui
 
+by default it will download the torrent to the folder you were in
+when you pasted the magnet into the message-to-server-log field
+
+you can optionally specify another location by adding a whitespace
+after the magnet URL followed by the name of the subfolder to DL into,
+or for example "anime/airing" would download to /srv/media/anime/airing
+because the keyword "anime" is in the DESTS config below
+
+needs python3
+
 example usage as global config (not a good idea):
     python copyparty-sfx.py --xm f,j,t60,bin/hooks/qbittorrent-magnet.py
 
@@ -45,6 +55,15 @@ while you're in the /qb folder (or any folder below there)
 ALLOWLIST = [ "ed", "morpheus" ]
 
 
+# list of destination aliases to translate into full filesystem
+# paths; takes effect if the first folder component in the
+# custom download location matches anything in this dict
+DESTS = {
+    "iso": "/srv/pub/linux-isos",
+    "anime": "/srv/media/anime",
+}
+
+
 def main():
     inf = json.loads(sys.argv[1])
     url = inf["txt"]
@@ -60,14 +79,40 @@ def main():
     # which matches the URL that the magnet message was sent to
     os.chdir(inf["ap"])
 
+    # is there is a custom download location in the url?
+    dst = ""
+    if " " in url:
+        url, dst = url.split(" ", 1)
+
+        # is the location in the predefined list of locations?
+        parts = dst.replace("\\", "/").split("/")
+        if parts[0] in DESTS:
+            dst = os.path.join(DESTS[parts[0]], *(parts[1:]))
+
+    else:
+        # nope, so download to the current folder instead;
+        # comment the dst line below to instead use the default
+        # download location from your qbittorrent settings
+        dst = inf["ap"]
+        pass
+
+    # archlinux has a -nox suffix for qbittorrent if headless
+    # so check if we should be using that
+    if shutil.which("qbittorrent-nox"):
+        torrent_bin = "qbittorrent-nox"
+    else:
+        torrent_bin = "qbittorrent"
+
     # the command to add a new torrent, adjust if necessary
-    cmd = ["qbittorrent-nox", url]
+    cmd = [torrent_bin, url]
+    if dst:
+        cmd += ["--save-path=%s" % (dst,)]
 
     # if copyparty and qbittorrent are running as different users
     # you may have to do something like the following
-    # (assuming qbittorrent-nox* is nopasswd-allowed in sudoers):
+    # (assuming qbittorrent* is nopasswd-allowed in sudoers):
     #
-    # cmd = ["sudo", "-u", "qbitter", "qbittorrent-nox", url]
+    # cmd = ["sudo", "-u", "qbitter"] + cmd
 
     print("🧲", cmd)