Merge pull request #5 from fanick1/master

fix typo: quite->quote

Makefile

@@ -1,22 +1,17 @@
 # simple makefile for running tests for the adbfs plugin
 
-all: test_dir py2 py3 flake8
+all: test_dir py3 flake8
 
 TEST_DIR='.test'
-PY2_VENV=$(TEST_DIR)/py2
 PY3_VENV=$(TEST_DIR)/py3
 FL8_VENV=$(TEST_DIR)/flake8
 TST_EXISTS=$(shell [ -e $(TEST_DIR) ] && echo 1 || echo 0)
-PY2_EXISTS=$(shell [ -e $(PY2_VENV) ] && echo 1 || echo 0)
 PY3_EXISTS=$(shell [ -e $(PY3_VENV) ] && echo 1 || echo 0)
 FL8_EXISTS=$(shell [ -e $(FL8_VENV) ] && echo 1 || echo 0)
 
 py3: test_dir virtualenv3
 	.test/py3/bin/python test_adbfs.py
 
-py2: test_dir virtualenv2
-	.test/py2/bin/python test_adbfs.py
-
 flake8: test_dir virtualenv_flake8
 	.test/flake8/bin/flake8 adbfs test_adbfs.py
 
@@ -35,14 +30,6 @@ else
 virtualenv3:
 endif
 
-ifeq ($(PY2_EXISTS), 0)
-virtualenv2:
-	virtualenv -p python2 $(PY2_VENV)
-	$(PY2_VENV)/bin/pip install mock
-else
-virtualenv2:
-endif
-
 ifeq ($(FL8_EXISTS), 0)
 virtualenv_flake8:
 	virtualenv -p python2 $(FL8_VENV)

README.rst

@@ -9,7 +9,7 @@ This is Midnight Commander extfs plugin for browsing Android device through
 Rquirements
 ===========
 
-* Python 2.7 or 3.x (tested on 3.5.4)
+* Python 3.x (tested on 3.5.4, 3.6 and 3.7)
 * ``adb`` installed and in ``$PATH`` or provided via the config file
 * An Android device or emulator preferably rooted
 * ``busybox`` (``toolbox``, ``toybox``) installed and available in the path on
@@ -76,6 +76,7 @@ You can configure behaviour of this plugin using ``.ini`` file located under
    root =
    adb_command = adb
    adb_connect =
+   try_su = false
 
 where:
 
@@ -90,12 +91,14 @@ where:
 * ``root`` root directory to read. Everything outside of that directory will be
   omitted. That would be the fastest way to access certain location on the
   device. Note, that ``dirs_to_skip`` still apply inside this directory.
-* ``adb_command`` absolute or relative path to ``adb`` command. `~/` or
+* ``adb_command`` absolute or relative path to ``adb`` command. ``~/`` or
   environment variables are allowed.
 * ``adb_connect`` specifies if connection to specific device needs to be
   performed before accessing shell. It is useful for *adb over network*
   feature. Typical value here is a device IP address with optional port, which
   defaults to 5555.
+* ``try_su`` specifies whether or not to try to detect if ``su`` command is
+  available and usable.
 
 
 Contribution
@@ -103,27 +106,24 @@ Contribution
 
 There is a ``Makefile`` in the top directory, which is basic helper for running
 the tests. Please use it, and adapt/add tests for provided fixes/functionality.
+The reason why `tox`_ wasn't used is, that there is no ``setup.py`` file, and
+it's difficult to install simple script, which isn't a python module (python
+interpreter will refuse to import module without ``.py`` extension).
 
-It requires GNU ``make`` program, and also ``virtualenv`` besides Python in
+It requires GNU ``make`` program, and also ``virtualenv``. Using it is simple
-version 2 and 3. Using it is simple as running following command:
+as running following command:
 
 .. code:: shell-session
 
    $ make
 
-it will run `py2`, `py3` and `flake8` jobs to check it against the code. For
+it will run `py3` and `flake8` jobs to check it against the code. For
 running tests against Python 3:
 
 .. code:: shell-session
 
    $ make py3
 
-or Python 2:
-
-.. code:: shell-session
-
-   $ make py2
-
 or flake 8:
 
 .. code:: shell-session
@@ -150,3 +150,5 @@ License
 
 This software is licensed under 3-clause BSD license. See LICENSE file for
 details.
+
+.. _tox: https://tox.readthedocs.io

adbfs

@@ -1,14 +1,11 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 """
 adbfs Virtual filesystem for Midnight Commander
 
 * Copyright (c) 2016, Roman Dobosz,
 * Published under 3-clause BSD-style license (see LICENSE file)
 """
-try:
+import configparser
-    import ConfigParser as configparser
-except ImportError:
-    import configparser
 import argparse
 from datetime import datetime
 import json
@@ -16,8 +13,9 @@ import os
 import re
 import subprocess
 import sys
+import shlex
 
-__version__ = 0.12
+__version__ = 0.14
 
 XDG_CONFIG_HOME = os.getenv('XDG_CONFIG_HOME', os.path.expanduser('~/.config'))
 
@@ -82,6 +80,7 @@ class Conf(object):
         self.suppress_colors = False
         self.adb_command = 'adb'
         self.adb_connect = ''
+        self.try_su = False
 
         self.read()
         self.connect()
@@ -189,13 +188,14 @@ class Conf(object):
         if not os.path.exists(conf_fname):
             return
 
-        cfg = configparser.SafeConfigParser()
+        cfg = configparser.ConfigParser()
         cfg_map = {'debug': (cfg.getboolean, 'debug'),
                    'dirs_to_skip': (cfg.get, 'dirs_to_skip'),
                    'suppress_colors': (cfg.get, 'suppress_colors'),
                    'root': (cfg.get, 'root'),
                    'adb_command': (cfg.get, 'adb_command'),
-                   'adb_connect': (cfg.get, 'adb_connect')}
+                   'adb_connect': (cfg.get, 'adb_connect'),
+                   'try_su': (cfg.getboolean, 'try_su')}
         cfg.read(conf_fname)
 
         for key, (function, attr) in cfg_map.items():
@@ -205,7 +205,7 @@ class Conf(object):
                 pass
 
         if self.dirs_to_skip and isinstance(self.dirs_to_skip, str):
-            self.dirs_to_skip = json.loads(self.dirs_to_skip, encoding='ascii')
+            self.dirs_to_skip = json.loads(self.dirs_to_skip)
             self.dirs_to_skip = [x.encode('utf-8') for x in self.dirs_to_skip]
         else:
             self.dirs_to_skip = []
@@ -335,11 +335,23 @@ class Adb(object):
         self._links = {}
         self._got_root = False
 
-        self.__su_check()
+        if self.conf.try_su:
+            self.__su_check()
+
+    def _shell_cmd(self, with_root, *args):
+        cmd = [self.conf.adb_command, 'shell']
+
+        if with_root and self._got_root:
+            _args = [shlex.quote(x) for x in args]
+            cmd += ['su', '-c', shlex.quote(' '.join(_args))]
+        else:
+            cmd += args
+
+        return cmd
 
     def __su_check(self):
         """Check if we are able to get elevated privileges"""
-        cmd = [self.conf.adb_command] + 'shell su -c whoami'.split()
+        cmd = self._shell_cmd(False, 'su -c whoami')
         try:
             with open(os.devnull, 'w') as fnull:
                 result = check_output(cmd, stderr=fnull)
@@ -389,10 +401,8 @@ class Adb(object):
 
     def _retrieve_single_dir_list(self, dir_):
         """Retrieve file list using adb"""
-        lscmd = self.conf.box['rls'].format(dir_)
+        lscmd = self.conf.box['rls'].format(shlex.quote(dir_))
-        if self._got_root:
+        command = self._shell_cmd(True, *shlex.split(lscmd))
-            lscmd = 'su -c "{}"'.format(lscmd)
-        command = [self.conf.adb_command, 'shell', lscmd]
 
         try:
             if self.conf.debug:
@@ -449,12 +459,9 @@ class Adb(object):
         if not root:
             lscmd = self.conf.box['ls']
         else:
-            lscmd = self.conf.box['rls'].format(root.filepath)
+            lscmd = self.conf.box['rls'].format(shlex.quote(root.filepath))
 
-        if self._got_root:
+        command = self._shell_cmd(True, *shlex.split(lscmd))
-            lscmd = 'su -c "{}"'.format(lscmd)
-
-        command = [self.conf.adb_command, 'shell', lscmd]
 
         try:
             if self.conf.debug:
@@ -463,7 +470,7 @@ class Adb(object):
             lines = check_output(command)
         except subprocess.CalledProcessError:
             sys.stderr.write('Cannot read directory. Is device connected?\n')
-            return 1
+            return 2
 
         current_dir = root.dirname if root else '/'
         for line in lines.split('\n'):
@@ -499,13 +506,13 @@ class Adb(object):
         """Not supported"""
         sys.stderr.write('Not supported - or maybe you are on compatible '
                          'architecture?\n')
-        return 1
+        return 3
 
     def list(self):
         """Output list contents directory"""
         if self.error:
             sys.stderr.write(self.error)
-            return 1
+            return 4
 
         if self.conf.root:
             self._retrieve_single_dir_list(self.conf.root)
@@ -520,7 +527,7 @@ class Adb(object):
         """Copy file form the device using adb."""
         if self.error:
             sys.stderr.write(self.error)
-            return 1
+            return 5
 
         cmd = [self.conf.adb_command, 'pull', src, dst]
         if self.conf.debug:
@@ -531,7 +538,7 @@ class Adb(object):
                 err = subprocess.call(cmd, stdout=fnull, stderr=fnull)
             except subprocess.CalledProcessError:
                 sys.stderr.write('Error executing adb shell')
-                return 1
+                return 6
 
         return err
 
@@ -539,7 +546,7 @@ class Adb(object):
         """Copy file to the device through adb."""
         if self.error:
             sys.stderr.write(self.error)
-            return 1
+            return 7
         if not dst.startswith('/'):
             dst = '/' + dst
 
@@ -552,69 +559,69 @@ class Adb(object):
                 err = subprocess.call(cmd, stdout=fnull, stderr=fnull)
             except subprocess.CalledProcessError:
                 sys.stderr.write('Error executing adb shell')
-                return 1
+                return 8
 
         if err != 0:
             sys.stderr.write('Cannot push the file, '
                              '%s, error %d' % (dst, err))
-            return 1
+            return 9
         return 0
 
     def rm(self, dst):
         """Remove file from device."""
         if self.error:
             sys.stderr.write(self.error)
-            return 1
+            return 10
 
-        cmd = [self.conf.adb_command, 'shell', 'rm', dst]
+        cmd = self._shell_cmd(False, 'rm %s' % shlex.quote(dst))
         try:
-            err = check_output(cmd)
+            err = check_output(cmd).strip()
         except subprocess.CalledProcessError:
             sys.stderr.write('Error executing adb shell')
-            return 1
+            return 11
 
         if err != '':
             sys.stderr.write(err)
-            return 1
+            return 12
         return 0
 
     def rmdir(self, dst):
         """Remove directory from device."""
         if self.error:
             sys.stderr.write(self.error)
-            return 1
+            return 13
 
-        cmd = [self.conf.adb_command, 'shell', 'rm', '-r', dst]
+        cmd = self._shell_cmd(False, 'rm -r %s' % shlex.quote(dst))
         try:
-            err = check_output(cmd)
+            err = check_output(cmd).strip()
         except subprocess.CalledProcessError:
             sys.stderr.write('Error executing adb shell')
-            return 1
+            return 14
 
         if err != '':
             sys.stderr.write(err)
-            return 1
+            return 15
         return 0
 
     def mkdir(self, dst):
         """Make directory on the device through adb."""
         if self.error:
             sys.stderr.write(self.error)
-            return 1
+            return 16
 
         if not dst.startswith('/'):
             dst = '/' + dst
 
-        cmd = [self.conf.adb_command, 'shell', 'mkdir', dst]
+        cmd = self._shell_cmd(False, 'mkdir %s' % shlex.quote(dst))
         try:
-            err = check_output(cmd)
+            err = check_output(cmd).strip()
         except subprocess.CalledProcessError:
             sys.stderr.write('Error executing adb shell')
-            return 1
+            return 17
 
         if err != '':
             sys.stderr.write(err)
-            return 1
+            return 18
         return 0
 
 
@@ -673,7 +680,11 @@ def main():
 
     args = parser.parse_args()
 
-    return args.func(args)
+    try:
+        return args.func(args)
+    except AttributeError:
+        parser.print_help()
+        parser.exit()
 
 
 if __name__ == '__main__':

test_adbfs.py

@@ -1,24 +1,15 @@
 # -*- coding: utf-8 -*-
 import os
-import six
+from importlib.util import spec_from_loader, module_from_spec
+from importlib.machinery import SourceFileLoader
 import unittest
-try:
+from unittest import mock
-    from unittest import mock
-except ImportError:
-    import mock
 
-FILE = os.path.join(os.path.abspath(os.path.dirname(__file__)), 'adbfs')
 
-try:
+module_path = os.path.join(os.path.abspath(os.path.dirname(__file__)), 'adbfs')
-    from importlib.util import spec_from_loader, module_from_spec
+spec = spec_from_loader("adbfs", SourceFileLoader("adbfs", module_path))
-    from importlib.machinery import SourceFileLoader
+adbfs = module_from_spec(spec)
-    spec = spec_from_loader("adbfs", SourceFileLoader("adbfs", FILE))
+spec.loader.exec_module(adbfs)
-    adbfs = module_from_spec(spec)
-    spec.loader.exec_module(adbfs)
-except ImportError:
-    # py27
-    import imp
-    adbfs = imp.load_source('adbfs', FILE)
 
 LISTING = '''\
 -rw-rw----  1 0  1015  0 01/01/2010 22:11:01 /storage/emulated/0/Grüß Gott
@@ -44,10 +35,7 @@ class TestCheckOutput(unittest.TestCase):
         Python3 treats string as unicode objects, but subprocess.check_output
         returns bytes object, which is equvalend for py2 string… annoying.
         """
-        if six.PY3:
+        out.return_value = bytes(LISTING, 'utf-8')
-            out.return_value = bytes(LISTING, 'utf-8')
-        else:
-            out.return_value = LISTING
         result = adbfs.check_output(None)
         self.assertEqual(result, LISTING)
 
@@ -57,9 +45,6 @@ class TestCheckOutput(unittest.TestCase):
         Special case for py3. We have bytes with some weird character - like
         some system write something with codepage, instead of utf8.
         """
-        if six.PY2:
-            # doesn't affect Python 2
-            return
         line = (b'-rw-rw----  1 0  1015  0 01/01/2010 22:11:01 '
                 b'/storage/emulated/0/\xe2\n')  # Latin 1 char â
         out.return_value = bytes(line)