Revert of Remove catapult_base from telemetry.

tools/telemetry/catapult_base/dependency_manager/dependency_manager_util.py

+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import os
+import shutil
+import stat
+import sys
+import zipfile
+
+from . import exceptions
+
+
+def _WinReadOnlyHandler(func, path, execinfo):
+  if not os.access(path, os.W_OK):
+    os.chmod(path, stat.S_IWRITE)
+    func(path)
+  else:
+    raise execinfo[0], execinfo[1], execinfo[2]
+
+
+def RemoveDir(dir_path):
+  if os.path.isdir(dir_path):
+    shutil.rmtree(dir_path, onerror=_WinReadOnlyHandler)
+
+
+def VerifySafeArchive(archive):
+  def ResolvePath(path_name):
+    return os.path.realpath(os.path.abspath(path_name))
+  # Must add pathsep to avoid false positives.
+  # Ex: /tmp/abc/bad_file.py starts with /tmp/a but not /tmp/a/
+  base_path = ResolvePath(os.getcwd()) + os.path.sep
+  for member in archive.namelist():
+    if not ResolvePath(os.path.join(base_path, member)).startswith(base_path):
+      raise exceptions.ArchiveError(
+          'Archive %s contains a bad member: %s.' % (archive.filename, member))
+
+
+def GetModeFromPath(file_path):
+  return stat.S_IMODE(os.stat(file_path).st_mode)
+
+
+def GetModeFromZipInfo(zip_info):
+  return zip_info.external_attr >> 16
+
+
+def SetUnzippedDirPermissions(archive, unzipped_dir):
+  """Set the file permissions in an unzipped archive.
+
+     Designed to be called right after extractall() was called on |archive|.
+     Noop on Win. Otherwise sets the executable bit on files where needed.
+
+     Args:
+         archive: A zipfile.ZipFile object opened for reading.
+         unzipped_dir: A path to a directory containing the unzipped contents
+             of |archive|.
+  """
+  if sys.platform.startswith('win'):
+    # Windows doesn't have an executable bit, so don't mess with the ACLs.
+    return
+  for zip_info in archive.infolist():
+    archive_acls = GetModeFromZipInfo(zip_info)
+    if archive_acls & stat.S_IXUSR:
+      # Only preserve owner execurable permissions.
+      unzipped_path = os.path.abspath(
+          os.path.join(unzipped_dir, zip_info.filename))
+      mode = GetModeFromPath(unzipped_path)
+      os.chmod(unzipped_path, mode | stat.S_IXUSR)
+
+
+def UnzipArchive(archive_path, unzip_path):
+  """Unzips a file if it is a zip file.
+
+  Args:
+      archive_path: The downloaded file to unzip.
+      unzip_path: The destination directory to unzip to.
+
+  Raises:
+      ValueError: If |archive_path| is not a zipfile.
+  """
+  # TODO(aiolos): Add tests once the refactor is completed. crbug.com/551158
+  if not (archive_path and zipfile.is_zipfile(archive_path)):
+    raise ValueError(
+        'Attempting to unzip a non-archive file at %s' % archive_path)
+  if not os.path.exists(unzip_path):
+    os.makedirs(unzip_path)
+  try:
+    with zipfile.ZipFile(archive_path, 'r') as archive:
+      VerifySafeArchive(archive)
+      archive.extractall(path=unzip_path)
+      SetUnzippedDirPermissions(archive, unzip_path)
+  except:
+    if unzip_path and os.path.isdir(unzip_path):
+      RemoveDir(unzip_path)
+    raise