cockpit-navigator/navigator/scripts/zip-for-download.py

103 lines
2.8 KiB
Python
Executable File

#!/usr/bin/env python3
"""
Cockpit Navigator - A File System Browser for Cockpit.
Copyright (C) 2021 Josh Boudreau <jboudreau@45drives.com>
This file is part of Cockpit Navigator.
Cockpit Navigator 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 3 of the License, or
(at your option) any later version.
Cockpit Navigator is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Cockpit Navigator. If not, see <https://www.gnu.org/licenses/>.
"""
"""
Synopsis: `zip-for-download.py </path/to/cwd> </path/to/file> [</path/to/file> ...]`
Output is JSON object with form:
{
message: <error message if applicable>,
archive-path: </path/to/archive>,
stat: {
size: <size of archive in bytes> // for setting channel max read size
}
}
"""
import os
import sys
import json
import subprocess
from datetime import datetime
def get_relpaths(full_paths, cwd):
response = []
for path in full_paths:
response.append(os.path.relpath(path, cwd))
return response
def make_zip(path):
try:
cwd = sys.argv[1]
files = get_relpaths(sys.argv[2:], cwd)
os.chdir(cwd)
except Exception as e:
print(json.dumps({
"message": e
}))
sys.exit(1)
cmd = ["zip", "-ryq", path, *files]
try:
child = subprocess.Popen(
cmd,
stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True
)
except Exception as e:
print(json.dumps({
"message": e
}))
sys.exit(1)
child.wait()
if child.returncode:
stdout, stderr = child.communicate()
print(json.dumps({
"message": stdout + stderr
}))
sys.exit(child.returncode)
try:
archive_size = os.stat(path).st_size
except Exception as e:
print(json.dumps({
"message": e
}))
sys.exit(1)
print(json.dumps({
"message": "",
"archive-path": path,
"stat": {
"size": archive_size
}
}))
def main():
tmp_dir = "/tmp/navigator"
if not os.path.exists(tmp_dir):
os.mkdir(tmp_dir)
elif not os.path.isdir(tmp_dir):
print(json.dumps({
"message": "Temp path already exists."
}))
sys.exit(1)
archive_path = tmp_dir + "/navigator-download_" + datetime.now().strftime("%Y-%m-%d_%H-%M-%S.%f") + ".zip"
make_zip(archive_path)
sys.exit(0)
if __name__ == "__main__":
main()