plugin.py

   1 import os, shutil, re, random, threading
   2 from urllib import unquote, unquote_plus
   3 from urlparse import urlparse
   4
   5 def GetPlugin(name):
   6     module_name = '.'.join(['plugins', name, name])
   7     module = __import__(module_name, globals(), locals(), name)
   8     plugin = getattr(module, module.CLASS_NAME)()
   9     return plugin
  10
  11 class Plugin(object):
  12
  13     random_lock = threading.Lock()
  14
  15     CONTENT_TYPE = ''
  16
  17     def __new__(cls, *args, **kwds):
  18         it = cls.__dict__.get('__it__')
  19         if it is not None:
  20             return it
  21         cls.__it__ = it = object.__new__(cls)
  22         it.init(*args, **kwds)
  23         return it
  24
  25     def init(self):
  26         pass
  27
  28     def send_file(self, handler, container, name):
  29         o = urlparse("http://fake.host" + handler.path)
  30         path = unquote_plus(o[2])
  31         handler.send_response(200)
  32         handler.end_headers()
  33         f = file(container['path'] + path[len(name)+1:], 'rb')
  34         shutil.copyfileobj(f, handler.wfile)
  35
  36     def get_local_base_path(self, handler, query):
  37
  38         subcname = query['Container'][0]
  39         container = handler.server.containers[subcname.split('/')[0]]
  40
  41         return container['path']
  42
  43     def get_local_path(self, handler, query):
  44
  45         subcname = query['Container'][0]
  46         container = handler.server.containers[subcname.split('/')[0]]
  47
  48         path = container['path']
  49         for folder in subcname.split('/')[1:]:
  50             if folder == '..':
  51                 return False
  52             path = os.path.join(path, folder)
  53         return path
  54
  55     def get_files(self, handler, query, filterFunction=None):
  56         subcname = query['Container'][0]
  57         cname = subcname.split('/')[0]
  58         path = self.get_local_path(handler, query)
  59
  60         files = [ os.path.join(path, file) for file in os.listdir(path)]
  61         if query.get('Recurse',['No'])[0]  == 'Yes':
  62             for file in files:
  63                 if os.path.isdir(file):
  64                     for new_file in os.listdir(file):
  65                         files.append( os.path.join(file, new_file) )
  66
  67         file_type = query.get('Filter', [''])[0]
  68         if filterFunction:
  69             files = [file for file in files if filterFunction(file, file_type)]
  70
  71         totalFiles = len(files)
  72
  73         def dir_sort(x, y):
  74             xdir = os.path.isdir(os.path.join(path, x))
  75             ydir = os.path.isdir(os.path.join(path, y))
  76
  77             if xdir and ydir:
  78                 return name_sort(x, y)
  79             elif xdir:
  80                 return -1
  81             elif ydir:
  82                 return 1
  83             else:
  84                 return name_sort(x, y)
  85
  86         def name_sort(x, y):
  87             numbername = re.compile(r'(\d*)(.*)')
  88             m = numbername.match(x)
  89             xNumber = m.group(1)
  90             xStr = m.group(2)
  91             m = numbername.match(y)
  92             yNumber = m.group(1)
  93             yStr = m.group(2)
  94
  95             if xNumber and yNumber:
  96                 xNumber, yNumber = int(xNumber), int(yNumber)
  97                 if xNumber == yNumber:
  98                     return cmp(xStr, yStr)
  99                 else:
 100                     return cmp(xNumber, yNumber)
 101             elif xNumber:
 102                 return -1
 103             elif yNumber:
 104                 return 1
 105             else:
 106                 return cmp(xStr, yStr)
 107
 108         if query.get('SortOrder',['Normal'])[0] == 'Random':
 109             seed = query.get('RandomSeed', ['1'])[0]
 110             self.random_lock.acquire()
 111             random.seed(seed)
 112             random.shuffle(files)
 113             self.random_lock.release()
 114         else:
 115             files.sort(dir_sort)
 116
 117         local_base_path = self.get_local_base_path(handler, query)
 118
 119         index = 0
 120         count = 10
 121         if query.has_key('ItemCount'):
 122             count = int(query['ItemCount'] [0])
 123
 124         if query.has_key('AnchorItem'):
 125             anchor = unquote(query['AnchorItem'][0])
 126             for file, i in zip(files, range(len(files))):
 127                 file_name = file.replace(local_base_path, '')
 128
 129                 if os.path.isdir(os.path.join(file)):
 130                     file_url = '/TiVoConnect?Command=QueryContainer&Container=' + cname + file_name
 131                 else:
 132                     file_url = '/' + cname + file_name
 133
 134                 if file_url == anchor:
 135                     if count > 0:
 136                         index = i + 1
 137                     elif count < 0:
 138                         index = i - 1
 139                     else:
 140                         index = i
 141                     break
 142
 143             if query.has_key('AnchorOffset'):
 144                 index = index +  int(query['AnchorOffset'][0])
 145
 146         #foward count
 147         if index < index + count:
 148             files = files[index:index + count ]
 149             return files, totalFiles, index
 150         #backwards count
 151         else:
 152             #off the start of the list
 153             if index + count < 0:
 154                 index += 0 - (index + count)
 155             files = files[index + count:index]
 156             return files, totalFiles, index + count