sio-2425/delivery1/client/bin/rep_get_doc_file

92 lines
2.6 KiB
Python
Executable File

#!/bin/python3
import os
import sys
import logging
import requests
import json
import argparse
from subject import main
sys.path.append(os.path.abspath("../../"))
from lib import digest
from lib import symmetric_encryption
logging.basicConfig(format='%(levelname)s\t- %(message)s')
logger = logging.getLogger()
logger.setLevel(logging.INFO)
state = main(sys.argv)
BASE_DIR = os.path.join(os.path.expanduser('~'), '.sio/')
# session file - document name - output file(optional)
def getDoc(args):
parser = argparse.ArgumentParser()
parser.add_argument("-k", '--key', nargs=1, help="Path to the key file")
parser.add_argument("-r", '--repo', nargs=1, help="Address:Port of the repository")
parser.add_argument("-v", '--verbose', help="Increase verbosity", action="store_true")
parser.add_argument('session', nargs='?', default=None)
parser.add_argument('name', nargs='?', default=None)
parser.add_argument('output', nargs='?', default=None)
args = parser.parse_args()
if not args.session or not args.name:
logger.error("Need session file and document's name.")
sys.exit(-1)
if (not os.path.isfile(BASE_DIR + args.session)):
logger.error("File '" + args.session + "' not found.")
sys.exit(-1)
# Get session file content
with open(BASE_DIR + args.session, 'r') as f:
args.session = json.load(f)
# Get Document metadata
doc_name = digest.get_hash(bytes(args.name, encoding='utf-8'))
try:
metadata = requests.get(f'http://{state['REP_ADDRESS']}/file/get/' + doc_name + '/metadata', headers={'Authorization': args.session['token']})
metadata.raise_for_status()
except requests.exceptions.RequestException as errex:
logger.error("Failed to obtain response from server.")
sys.exit(1)
metadata = metadata.json()
#Get file with file_handle provided by metadata
try:
file = requests.get(f'http://{state['REP_ADDRESS']}/get/' + metadata['file_handle'] + '/content')
file.raise_for_status()
except requests.exceptions.RequestException as errex:
logger.error("Failed to obtain response from server.")
sys.exit(-1)
file = file.json()
if not digest.get_hash(file) == metadata['file_handle']:
logger.error("Files integrity is lost.")
sys.exit(-1)
content = symmetric_encryption.decrypt_file(file)
if args.output:
with open(BASE_DIR + args.output, 'w') as f:
f.write(content)
else:
sys.stdout.write(content)
sys.exit(0)
if __name__ == '__main__':
getDoc(sys.argv[1:])