add support for toml config file

Author: ahmubashshir

requirements.txt

@@ -1 +1,3 @@
-transmissionrpc>=0.11
+transmission-rpc>=3.2; python_version >= '3'
+transmissionrpc>=0.11; python_version < '3'
+toml

transmission-trackers.py

@@ -2,44 +2,75 @@
 
 # Host, port, username and password to connect to Transmission
 # Set user and pw to None if auth is not required
-host, port, user, pw = 'localhost', 9091, 'admin', 'passwd'
-
-# Work with torrents having only these statuses.
-# Can be any combination of: 'check pending', 'checking', 'downloading', 'seeding', 'stopped'
-# If empty - will affect all torrents
-status_filter = ()
-
-# How frequently to update trackers cache
-update_freq = 86400
-
-# A list of URLs where to get the tracker lists from.
-# The lists are combined into one with duplicates removed.
-# The trackers from these lists are checked by looking up the URL's hostname in DNS.
-urls = [
-  'https://raw.githubusercontent.com/ngosang/trackerslist/master/trackers_all.txt',
-  'https://raw.githubusercontent.com/zcq100/transmission-trackers/master/tracker_ipv6.txt',
-  # ...
-]
-
-# Whether to print an error if connection failed (no Transmission running?)
-err_on_connect = False
-
-# Where to cache downloaded lists
-cache_file = '/tmp/trackers_cache.txt'
-
-# Additional local lists of trackers to load.
-# Better to use absolute paths.
-# These are not checked against DNS
-local_lists = [
-  # '/var/cache/trackers1.txt'
-  # '/var/cache/trackers2.txt'
-  # ...
-]
-
-# Don't print anything (unless an error occures)
-silent = False
-# Debug output
-debug = False
+client = {
+  'host': 'localhost',
+  'port': 9091,
+  'user': 'admin',
+  'password': 'passwd'
+}
+config = {
+
+  # Work with torrents having only these statuses.
+  # Can be any combination of: 'check pending', 'checking', 'downloading', 'seeding', 'stopped'
+  # If empty - will affect all torrents
+  'status_filter': (),
+
+  # A list of URLs where to get the tracker lists from.
+  # The lists are combined into one with duplicates removed.
+  # The trackers from these lists are checked by looking up the URL's hostname in DNS.
+  'remote_lists': [
+    'https://raw.githubusercontent.com/ngosang/trackerslist/master/trackers_all.txt',
+    'https://raw.githubusercontent.com/zcq100/transmission-trackers/master/tracker_ipv6.txt',
+    # ...
+  ],
+
+  # How frequently to update trackers cache
+  'update_freq': 86400,
+
+  # Additional local lists of trackers to load.
+  # Better to use absolute paths.
+  # These are not checked against DNS
+  'local_lists': [
+    # '/var/cache/trackers1.txt'
+    # '/var/cache/trackers2.txt'
+    # ...
+  ],
+
+  # Whether to print an error if connection failed (no Transmission running?)
+  'err_on_connect': False,
+
+  # Don't print anything (unless an error occures)
+  'silent': False,
+
+  # Debug output
+  'debug': False
+}
+
+from os import getcwd
+if getcwd() != '/docker/transmission/transmission-trackers':
+  from os import environ as env, path, mkdir
+  try:
+    import toml
+    configfile = path.join( \
+      env.get('XDG_CONFIG_HOME', path.join(env['HOME'],'.config')),
+      'transmission/trackers.toml'
+    )
+    if path.exists(configfile):
+      with open(configfile, 'r') as f:
+        client, config = toml.load(f).values()
+    else:
+      if not path.isdir(path.dirname(configfile)):
+        mkdir(path.dirname(configfile))
+      with open(configfile, 'w') as f:
+        toml.dump( {'client': client, 'config': config }, f )
+  except:
+    pass
+  # Where to cache downloaded lists
+  cache_file = path.join(env['HOME'] ,'.cache/trackers.txt')
+else:
+  cache_file = '/tmp/trackers_cache.txt'
+
+
 
 ### Configuration ends here ###
 hdrs = {'User-Agent': 'Mozilla/5.0'}
@@ -49,8 +80,11 @@
 try:
   from transmissionrpc import Client
 except ImportError:
-  try
+  try:
     from transmission_rpc import Client
+    if 'user' in client:
+      client['username'] = client['user']
+      del client['user']
   except ImportError:
     print("neither transmissionrpc nor transmission-rpc is installed")
     exit()
@@ -63,10 +97,10 @@
   from urllib.parse import urlparse
 
 def lg(msg):
-  if not silent: print(msg)
+  if not config['silent']: print(msg)
 
 def dbg(msg):
-  if debug: lg(msg)
+  if config['debug']: lg(msg)
 
 def parse(txt):
   l = []
@@ -125,7 +159,7 @@ def downloadLists():
 
   try:
     mt = os.stat(cache_file).st_mtime
-    if time.time() - mt > update_freq:
+    if time.time() - mt > config['update_freq']:
       update = True
   except:
     update = True
@@ -134,7 +168,7 @@ def downloadLists():
     return None
 
   trk = []
-  for url in urls:
+  for url in config['remote_lists']:
     l = loadURL(url)
     trk += l
     dbg("Remote URL '{}' loaded: {} trackers".format(url, len(l)))
@@ -151,7 +185,7 @@ def downloadLists():
 
 def readLocalLists():
   trk = []
-  for f in local_lists:
+  for f in config['local_lists']:
     l = loadFile(f)
     trk += l
     dbg("Local list '{}' loaded: {} trackers".format(f, len(l)))
@@ -167,7 +201,7 @@ def readLocalLists():
   lg('Remote URLs downloaded: {} trackers'.format(len(trk_remote)))
 elif trk_remote is None:
   trk_remote = []
-  local_lists.append(cache_file)
+  config['local_lists'].append(cache_file)
 
 trk_local = readLocalLists()
 if trk_local:
@@ -181,12 +215,9 @@ def readLocalLists():
   exit(1)
 
 try:
-  if Client.__module__ == 'transmission_rpc.client':
-    tc = Client(host=host, port=port, username=user, password=pw)
-  else:
-    tc = Client(host, port=port, user=user, password=pw)
+  tc = Client(**client)
 except:
-  if not err_on_connect:
+  if not config['err_on_connect']:
     exit()
 
   print("Unable to connect to Transmission: ", sys.exc_info()[0])
@@ -197,7 +228,7 @@ def readLocalLists():
 dbg('{} torrents total'.format(len(torrents)))
 
 for t in torrents:
-  if status_filter and not t.status in status_filter:
+  if config['status_filter'] and not t.status in config['status_filter']:
     dbg('{}: skipping due to status filter'.format(t.name))
     continue