config.py

   1 import ConfigParser, os
   2 import re
   3 import random
   4 import string
   5 from ConfigParser import NoOptionError
   6
   7 BLACKLIST_169 = ('540', '649')
   8 guid = ''.join([random.choice(string.letters) for i in range(10)])
   9
  10 config = ConfigParser.ConfigParser()
  11 p = os.path.dirname(__file__)
  12 config_files = [
  13     '/etc/pyTivo.conf',
  14     os.path.join(p, 'pyTivo.conf'),
  15 ]
  16 config.read(config_files)
  17
  18 def reset():
  19     global config
  20     del config
  21     config = ConfigParser.ConfigParser()
  22     config.read(config_file)
  23
  24 def getGUID():
  25     if config.has_option('Server', 'GUID'):
  26         return config.get('Server', 'GUID')
  27     else:
  28         return guid
  29
  30 def getTivoUsername():
  31     return config.get('Server', 'tivo_username')
  32
  33 def getTivoPassword():
  34     return config.get('Server', 'tivo_password')
  35
  36 def getBeaconAddresses():
  37     if config.has_option('Server', 'beacon'):
  38         beacon_ips = config.get('Server', 'beacon')
  39     else:
  40         beacon_ips = '255.255.255.255'
  41     return beacon_ips
  42
  43 def getPort():
  44     return config.get('Server', 'Port')
  45
  46 def get169Setting(tsn):
  47     if not tsn:
  48         return True
  49
  50     if config.has_section('_tivo_' + tsn):
  51         if config.has_option('_tivo_' + tsn, 'aspect169'):
  52             try:
  53                 return config.getboolean('_tivo_' + tsn, 'aspect169')
  54             except ValueError:
  55                 pass
  56
  57     if tsn[:3] in BLACKLIST_169:
  58         return False
  59
  60     return True
  61
  62 def getShares(tsn=''):
  63     shares = [(section, dict(config.items(section)))
  64               for section in config.sections()
  65               if not(section.startswith('_tivo_') or section == 'Server')]
  66
  67     if config.has_section('_tivo_' + tsn):
  68         if config.has_option('_tivo_' + tsn, 'shares'):
  69             # clean up leading and trailing spaces & make sure ref is valid
  70             tsnshares = []
  71             for x in config.get('_tivo_' + tsn, 'shares').split(','):
  72                 y = x.lstrip().rstrip()
  73                 if config.has_section(y):
  74                     tsnshares += [(y, dict(config.items(y)))]
  75             if tsnshares:
  76                 shares = tsnshares
  77
  78     for name, data in shares:
  79         if not data.get('auto_subshares', 'False').lower() == 'true':
  80             continue
  81
  82         base_path = data['path']
  83         try:
  84             for item in os.listdir(base_path):
  85                 item_path = os.path.join(base_path, item)
  86                 if not os.path.isdir(item_path):
  87                     continue
  88
  89                 new_name = name + '/' + item
  90                 new_data = dict(data)
  91                 new_data['path'] = item_path
  92
  93                 shares.append((new_name, new_data))
  94         except:
  95             pass
  96
  97     return shares
  98
  99 def getDebug(ref):
 100     if config.has_option('Server', 'debug'):
 101         try:
 102             return str2tuple(config.get('Server', 'debug')+',,')[ref]
 103         except NoOptionError:
 104             pass
 105     return str2tuple('False,,')[ref]
 106
 107 def getHack83():
 108     try:
 109         debug = config.get('Server', 'hack83')
 110         if debug.lower() == 'true':
 111             return True
 112         else:
 113             return False
 114     except NoOptionError:
 115         return False
 116
 117 def getOptres(tsn = None):
 118     if tsn and config.has_section('_tivo_' + tsn):
 119         try:
 120             return config.getboolean('_tivo_' + tsn, 'optres')
 121         except NoOptionError, ValueError:
 122             pass
 123     try:
 124         return config.getboolean('Server', 'optres')
 125     except NoOptionError, ValueError:
 126         return False
 127
 128 def getPixelAR(ref):
 129     if config.has_option('Server', 'par'):
 130         try:
 131             return (True, config.getfloat('Server', 'par'))[ref]
 132         except NoOptionError, ValueError:
 133             pass
 134     return (False, 1.0)[ref]
 135
 136 def get(section, key):
 137     return config.get(section, key)
 138
 139 def getFFmpegTemplate(tsn):
 140     if tsn and config.has_section('_tivo_' + tsn):
 141         try:
 142             return config.get('_tivo_' + tsn, 'ffmpeg_tmpl', raw=True)
 143         except NoOptionError:
 144             pass
 145     try:
 146         return config.get('Server', 'ffmpeg_tmpl', raw=True)
 147     except NoOptionError: #default
 148         return '%(video_codec)s %(video_fps)s %(video_br)s %(max_video_br)s \
 149                 %(buff_size)s %(aspect_ratio)s -comment pyTivo.py %(audio_br)s \
 150                 %(audio_fr)s %(audio_ch)s %(audio_codec)s %(ffmpeg_pram)s %(format)s'
 151
 152 def getFFmpegPrams(tsn):
 153     if tsn and config.has_section('_tivo_' + tsn):
 154         try:
 155             return config.get('_tivo_' + tsn, 'ffmpeg_pram', raw=True)
 156         except NoOptionError:
 157             pass
 158     try:
 159         return config.get('Server', 'ffmpeg_pram', raw=True)
 160     except NoOptionError:
 161         return None
 162
 163 def isHDtivo(tsn):  # tsn's of High Definition Tivo's
 164     return tsn != '' and tsn[:3] in ['648', '652']
 165
 166 def getValidWidths():
 167     return [1920, 1440, 1280, 720, 704, 544, 480, 352]
 168
 169 def getValidHeights():
 170     return [1080, 720, 480] # Technically 240 is also supported
 171
 172 # Return the number in list that is nearest to x
 173 # if two values are equidistant, return the larger
 174 def nearest(x, list):
 175     return reduce(lambda a, b: closest(x, a, b), list)
 176
 177 def closest(x, a, b):
 178     if abs(x - a) < abs(x - b) or (abs(x - a) == abs(x - b) and a > b):
 179         return a
 180     else:
 181         return b
 182
 183 def nearestTivoHeight(height):
 184     return nearest(height, getValidHeights())
 185
 186 def nearestTivoWidth(width):
 187     return nearest(width, getValidWidths())
 188
 189 def getTivoHeight(tsn):
 190     if tsn and config.has_section('_tivo_' + tsn):
 191         try:
 192             height = config.getint('_tivo_' + tsn, 'height')
 193             return nearestTivoHeight(height)
 194         except NoOptionError:
 195             pass
 196     try:
 197         height = config.getint('Server', 'height')
 198         return nearestTivoHeight(height)
 199     except NoOptionError: #defaults for S3/S2 TiVo
 200         if isHDtivo(tsn):
 201             return 720
 202         else:
 203             return 480
 204
 205 def getTivoWidth(tsn):
 206     if tsn and config.has_section('_tivo_' + tsn):
 207         try:
 208             width = config.getint('_tivo_' + tsn, 'width')
 209             return nearestTivoWidth(width)
 210         except NoOptionError:
 211             pass
 212     try:
 213         width = config.getint('Server', 'width')
 214         return nearestTivoWidth(width)
 215     except NoOptionError: #defaults for S3/S2 TiVo
 216         if isHDtivo(tsn):
 217             return 1280
 218         else:
 219             return 544
 220
 221 def getAudioBR(tsn = None):
 222     #convert to non-zero multiple of 64 to ensure ffmpeg compatibility
 223     #compare audio_br to max_audio_br and return lowest
 224     if tsn and config.has_section('_tivo_' + tsn):
 225         try:
 226             audiobr = int(max(int(strtod(config.get('_tivo_' + tsn, 'audio_br'))/1000), 64)/64)*64
 227             return str(min(audiobr, getMaxAudioBR(tsn))) + 'k'
 228         except NoOptionError:
 229             pass
 230     try:
 231         audiobr = int(max(int(strtod(config.get('Server', 'audio_br'))/1000), 64)/64)*64
 232         return str(min(audiobr, getMaxAudioBR(tsn))) + 'k'
 233     except NoOptionError:
 234         return str(min(384, getMaxAudioBR(tsn))) + 'k'
 235
 236 def getVideoBR(tsn = None):
 237     if tsn and config.has_section('_tivo_' + tsn):
 238         try:
 239             return config.get('_tivo_' + tsn, 'video_br')
 240         except NoOptionError:
 241             pass
 242     try:
 243         return config.get('Server', 'video_br')
 244     except NoOptionError: #defaults for S3/S2 TiVo
 245         if isHDtivo(tsn):
 246             return '8192k'
 247         else:
 248             return '4096K'
 249
 250 def getMaxVideoBR():
 251     try:
 252         return str(int(strtod(config.get('Server', 'max_video_br'))/1000)) + 'k'
 253     except NoOptionError: #default to 17Mi
 254         return '17408k'
 255
 256 def getBuffSize():
 257     try:
 258         return str(int(strtod(config.get('Server', 'bufsize'))))
 259     except NoOptionError: #default 1024k
 260         return '1024k'
 261
 262 def getMaxAudioBR(tsn = None):
 263     #convert to non-zero multiple of 64 for ffmpeg compatibility
 264     if tsn and config.has_section('_tivo_' + tsn):
 265         try:
 266             return int(int(strtod(config.get('_tivo_' + tsn, 'max_audio_br'))/1000)/64)*64
 267         except NoOptionError:
 268             pass
 269     try:
 270         return int(int(strtod(config.get('Server', 'max_audio_br'))/1000)/64)*64
 271     except NoOptionError:
 272         return int(448) #default to 448
 273
 274 def getAudioCodec(tsn = None):
 275     if tsn and config.has_section('_tivo_' + tsn):
 276         try:
 277             return config.get('_tivo_' + tsn, 'audio_codec')
 278         except NoOptionError:
 279             pass
 280     try:
 281         return config.get('Server', 'audio_codec')
 282     except NoOptionError:
 283         return None
 284
 285 def getAudioCH(tsn = None):
 286     if tsn and config.has_section('_tivo_' + tsn):
 287         try:
 288             return config.get('_tivo_' + tsn, 'audio_ch')
 289         except NoOptionError:
 290             pass
 291     try:
 292         return config.get('Server', 'audio_ch')
 293     except NoOptionError:
 294         return None
 295
 296 def getAudioFR(tsn = None):
 297     if tsn and config.has_section('_tivo_' + tsn):
 298         try:
 299             return config.get('_tivo_' + tsn, 'audio_fr')
 300         except NoOptionError:
 301             pass
 302     try:
 303         return config.get('Server', 'audio_fr')
 304     except NoOptionError:
 305         return None
 306
 307 def getVideoFPS(tsn = None):
 308     if tsn and config.has_section('_tivo_' + tsn):
 309         try:
 310             return config.get('_tivo_' + tsn, 'video_fps')
 311         except NoOptionError:
 312             pass
 313     try:
 314         return config.get('Server', 'video_fps')
 315     except NoOptionError:
 316         return None
 317
 318 def getVideoCodec(tsn = None):
 319     if tsn and config.has_section('_tivo_' + tsn):
 320         try:
 321             return config.get('_tivo_' + tsn, 'video_codec')
 322         except NoOptionError:
 323             pass
 324     try:
 325         return config.get('Server', 'video_codec')
 326     except NoOptionError:
 327         return None
 328
 329 def getFormat(tsn = None):
 330     if tsn and config.has_section('_tivo_' + tsn):
 331         try:
 332             return config.get('_tivo_' + tsn, 'force_format')
 333         except NoOptionError:
 334             pass
 335     try:
 336         return config.get('Server', 'force_format')
 337     except NoOptionError:
 338         return None
 339
 340 def str2tuple(s):
 341     items = s.split(',')
 342     L = [x.strip() for x in items]
 343     return tuple(L)
 344
 345 # Parse a bitrate using the SI/IEEE suffix values as if by ffmpeg
 346 # For example, 2K==2000, 2Ki==2048, 2MB==16000000, 2MiB==16777216
 347 # Algorithm: http://svn.mplayerhq.hu/ffmpeg/trunk/libavcodec/eval.c
 348 def strtod(value):
 349     prefixes = {'y': -24, 'z': -21, 'a': -18, 'f': -15, 'p': -12,
 350                 'n': -9,  'u': -6,  'm': -3,  'c': -2,  'd': -1,
 351                 'h': 2,   'k': 3,   'K': 3,   'M': 6,   'G': 9,
 352                 'T': 12,  'P': 15,  'E': 18,  'Z': 21,  'Y': 24}
 353     p = re.compile(r'^(\d+)(?:([yzafpnumcdhkKMGTPEZY])(i)?)?([Bb])?$')
 354     m = p.match(value)
 355     if m is None:
 356         raise SyntaxError('Invalid bit value syntax')
 357     (coef, prefix, power, byte) = m.groups()
 358     if prefix is None:
 359         value = float(coef)
 360     else:
 361         exponent = float(prefixes[prefix])
 362         if power == 'i':
 363             # Use powers of 2
 364             value = float(coef) * pow(2.0, exponent / 0.3)
 365         else:
 366             # Use powers of 10
 367             value = float(coef) * pow(10.0, exponent)
 368     if byte == 'B': # B == Byte, b == bit
 369         value *= 8;
 370     return value