4b383b4951
Moved from the Dependency class to a generalized utility of the storages app. Signed-off-by: Roberto Rosario <roberto.rosario@mayan-edms.com>
131 lines
3.7 KiB
Python
131 lines
3.7 KiB
Python
from __future__ import unicode_literals
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import fileinput
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import logging
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import os
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import shutil
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import tempfile
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from pathlib2 import Path
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from django.utils.encoding import force_text
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from django.utils.module_loading import import_string
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from .settings import setting_temporary_directory
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logger = logging.getLogger(__name__)
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def TemporaryFile(*args, **kwargs):
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kwargs.update({'dir': setting_temporary_directory.value})
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return tempfile.TemporaryFile(*args, **kwargs)
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def NamedTemporaryFile(*args, **kwargs):
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kwargs.update({'dir': setting_temporary_directory.value})
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return tempfile.NamedTemporaryFile(*args, **kwargs)
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def fs_cleanup(filename, suppress_exceptions=True):
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"""
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Tries to remove the given filename. Ignores non-existent files.
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"""
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try:
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os.remove(filename)
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except OSError:
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try:
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shutil.rmtree(filename)
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except OSError:
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if suppress_exceptions:
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pass
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else:
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raise
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def get_storage_subclass(dotted_path):
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"""
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Import a storage class and return a subclass that will always return eq
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True to avoid creating a new migration when for runtime storage class
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changes.
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"""
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imported_storage_class = import_string(dotted_path=dotted_path)
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class StorageSubclass(imported_storage_class):
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def __init__(self, *args, **kwargs):
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return super(StorageSubclass, self).__init__(*args, **kwargs)
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def __eq__(self, other):
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return True
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def deconstruct(self):
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return ('mayan.apps.storage.classes.FakeStorageSubclass', (), {})
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return StorageSubclass
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def mkdtemp(*args, **kwargs):
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"""
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Creates a temporary directory in the most secure manner possible.
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There are no race conditions in the directory's creation.
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The directory is readable, writable, and searchable only by the creating
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user ID.
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"""
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kwargs.update({'dir': setting_temporary_directory.value})
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return tempfile.mkdtemp(*args, **kwargs)
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def mkstemp(*args, **kwargs):
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kwargs.update({'dir': setting_temporary_directory.value})
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return tempfile.mkstemp(*args, **kwargs)
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def patch_files(path=None, replace_list=None):
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"""
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Search and replace content from a list of file based on a pattern
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replace_list[
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{
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'filename_pattern': '*.css',
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'content_patterns': [
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{
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'search': '',
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'replace': '',
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}
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]
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}
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]
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"""
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path_object = Path(path)
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for replace_entry in replace_list or []:
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for path_entry in path_object.glob('**/{}'.format(replace_entry['filename_pattern'])):
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if path_entry.is_file():
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# PY3
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# Don't use context processor to allow working on Python 2.7
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# Update on Mayan EDMS version >= 4.0
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file_object = fileinput.FileInput(force_text(path_entry), inplace=True)
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for line in file_object:
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for pattern in replace_entry['content_patterns']:
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line = line.replace(pattern['search'], pattern['replace'])
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print(line, end='')
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file_object.close()
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def validate_path(path):
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if not os.path.exists(path):
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# If doesn't exist try to create it
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try:
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os.mkdir(path)
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except Exception as exception:
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logger.debug('unhandled exception: %s', exception)
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return False
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# Check if it is writable
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try:
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fd, test_filepath = tempfile.mkstemp(dir=path)
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os.close(fd)
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os.unlink(test_filepath)
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except Exception as exception:
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logger.debug('unhandled exception: %s', exception)
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return False
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return True
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