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"""
/***************************************************************************
Plugin Installer module
unzip function
-------------------
Date : May 2013
Copyright : (C) 2013 by Borys Jurgiel
Email : info at borysjurgiel dot pl
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
"""
import zipfile
import os
def unzip(file, targetDir, password=None):
"""Creates directory structure and extracts the zip contents to it.
file (file object) - the zip file to extract
targetDir (str) - target location
password (str; optional) - password to decrypt the zip file (if encrypted)
"""
# convert password to bytes
if isinstance(password, str):
password = bytes(password, "utf8")
# create destination directory if doesn't exist
if not targetDir.endswith(":") and not os.path.exists(targetDir):
os.makedirs(targetDir)
zf = zipfile.ZipFile(file)
for name in zf.namelist():
# Skip directories - they will be created when necessary by os.makedirs
if name.endswith("/"):
continue
# Read the source file before creating any output,
# so no directories are created if user doesn't know the password
memberContent = zf.read(name, password)
# create directory if doesn't exist
localDir = os.path.split(name)[0]
fullDir = os.path.normpath(os.path.join(targetDir, localDir))
if not os.path.exists(fullDir):
os.makedirs(fullDir)
# extract file
fullPath = os.path.normpath(os.path.join(targetDir, name))
outfile = open(fullPath, "wb")
outfile.write(memberContent)
outfile.flush()
outfile.close()
zf.close()
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