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 == ydir:
  78                 return name_sort(x, y)
  79             else:
  80                 return ydir - xdir
  81
  82         def name_sort(x, y):
  83             numbername = re.compile(r'(\d*)(.*)')
  84             m = numbername.match(x)
  85             xNumber = m.group(1)
  86             xStr = m.group(2)
  87             m = numbername.match(y)
  88             yNumber = m.group(1)
  89             yStr = m.group(2)
  90
  91             if xNumber and yNumber:
  92                 xNumber, yNumber = int(xNumber), int(yNumber)
  93                 if xNumber == yNumber:
  94                     return cmp(xStr, yStr)
  95                 else:
  96                     return cmp(xNumber, yNumber)
  97             elif xNumber:
  98                 return -1
  99             elif yNumber:
 100                 return 1
 101             else:
 102                 return cmp(xStr, yStr)
 103
 104         if query.get('SortOrder',['Normal'])[0] == 'Random':
 105             seed = query.get('RandomSeed', ['1'])[0]
 106             self.random_lock.acquire()
 107             random.seed(seed)
 108             random.shuffle(files)
 109             self.random_lock.release()
 110         else:
 111             files.sort(dir_sort)
 112
 113         local_base_path = self.get_local_base_path(handler, query)
 114
 115         index = 0
 116         count = 10
 117         if query.has_key('ItemCount'):
 118             count = int(query['ItemCount'] [0])
 119
 120         if query.has_key('AnchorItem'):
 121             anchor = unquote(query['AnchorItem'][0])
 122             for file, i in zip(files, range(len(files))):
 123                 file_name = file.replace(local_base_path, '')
 124
 125                 if os.path.isdir(os.path.join(file)):
 126                     file_url = '/TiVoConnect?Command=QueryContainer&Container=' + cname + file_name
 127                 else:
 128                     file_url = '/' + cname + file_name
 129                 file_url = file_url.replace('\\', '/')
 130
 131                 if file_url == anchor:
 132                     if count > 0:
 133                         index = i + 1
 134                     else:
 135                         index = i
 136                     break
 137
 138             if query.has_key('AnchorOffset'):
 139                 index = index +  int(query['AnchorOffset'][0])
 140
 141         #foward count
 142         if index < index + count:
 143             files = files[index:index + count ]
 144             return files, totalFiles, index
 145         #backwards count
 146         else:
 147             #off the start of the list
 148             if index + count < 0:
 149                 index += 0 - (index + count)
 150             files = files[index + count:index]
 151             return files, totalFiles, index + count