/usr/lib/python2.7/dist-packages/stetl/filters/zipfileextractor.py is in python-stetl 1.1+ds-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 | # -*- coding: utf-8 -*-
#
# Extracts a file from a ZIP file, and saves it as the given file name.
#
# Author: Frank Steggink
#
from stetl.component import Config
from stetl.filter import Filter
from stetl.util import Util
from stetl.packet import FORMAT
log = Util.get_log('zipfileextractor')
BUFFER_SIZE = 1024 * 1024 * 1024
class ZipFileExtractor(Filter):
"""
Extracts a file from a ZIP file, and saves it as the given file name.
consumes=FORMAT.record, produces=FORMAT.string
"""
# Start attribute config meta
@Config(ptype=str, default=None, required=True)
def file_path(self):
"""
File name to write the extracted file to.
"""
pass
# End attribute config meta
# Constructor
def __init__(self, configdict, section):
Filter.__init__(self, configdict, section, consumes=FORMAT.record, produces=FORMAT.string)
self.cur_file_path = self.cfg.get('file_path')
def invoke(self, packet):
if packet.data is None:
log.info("No file name given")
return packet
import zipfile
with zipfile.ZipFile(packet.data['file_path']) as z:
with open(self.cur_file_path, 'wb') as f:
with z.open(packet.data['name']) as zf:
while True:
buffer = zf.read(BUFFER_SIZE)
if not buffer:
break
f.write(buffer)
packet.data = self.cur_file_path
return packet
def after_chain_invoke(self, packet):
import os.path
if os.path.isfile(self.cur_file_path):
os.remove(self.cur_file_path)
return True
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