tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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content_settings.py (2364B)

      1 # Copyright 2014 The Chromium Authors
      2 # Use of this source code is governed by a BSD-style license that can be
      3 # found in the LICENSE file.
      4 
      5 
      6 class ContentSettings(dict):
      7 
      8  """A dict interface to interact with device content settings.
      9 
     10  System properties are key/value pairs as exposed by adb shell content.
     11  """
     12 
     13  def __init__(self, table, device):
     14    super().__init__()
     15    self._table = table
     16    self._device = device
     17 
     18  @staticmethod
     19  def _GetTypeBinding(value):
     20    if isinstance(value, bool):
     21      return 'b'
     22    if isinstance(value, float):
     23      return 'f'
     24    if isinstance(value, int):
     25      return 'i'
     26    if isinstance(value, int):
     27      return 'l'
     28    if isinstance(value, str):
     29      return 's'
     30    raise ValueError('Unsupported type %s' % type(value))
     31 
     32  def iteritems(self):
     33    # Example row:
     34    # 'Row: 0 _id=13, name=logging_id2, value=-1fccbaa546705b05'
     35    for row in self._device.RunShellCommand(
     36        'content query --uri content://%s' % self._table, as_root=True):
     37      fields = row.split(', ')
     38      key = None
     39      value = None
     40      for field in fields:
     41        k, _, v = field.partition('=')
     42        if k == 'name':
     43          key = v
     44        elif k == 'value':
     45          value = v
     46      if not key:
     47        continue
     48      if not value:
     49        value = ''
     50      yield key, value
     51 
     52  def __getitem__(self, key):
     53    return self._device.RunShellCommand(
     54        'content query --uri content://%s --where "name=\'%s\'" '
     55        '--projection value' % (self._table, key), as_root=True).strip()
     56 
     57  def __setitem__(self, key, value):
     58    if key in self:
     59      self._device.RunShellCommand(
     60          'content update --uri content://%s '
     61          '--bind value:%s:%s --where "name=\'%s\'"' % (
     62              self._table,
     63              self._GetTypeBinding(value), value, key),
     64          as_root=True)
     65    else:
     66      self._device.RunShellCommand(
     67          'content insert --uri content://%s '
     68          '--bind name:%s:%s --bind value:%s:%s' % (
     69              self._table,
     70              self._GetTypeBinding(key), key,
     71              self._GetTypeBinding(value), value),
     72          as_root=True)
     73 
     74  def __delitem__(self, key):
     75    self._device.RunShellCommand(
     76        'content delete --uri content://%s '
     77        '--bind name:%s:%s' % (
     78            self._table,
     79            self._GetTypeBinding(key), key),
     80        as_root=True)