Domenico Testa
fa971ca9be
- dependency version pinning - automatic `secret_key` generation - automatic config file generation - installing `once` script - setup instructions in README.md - adding an architecture diagram
100 lines
2.9 KiB
Python
100 lines
2.9 KiB
Python
'''
|
|
Simple command to share one-time files
|
|
'''
|
|
|
|
import os
|
|
import base64
|
|
import configparser
|
|
import hashlib
|
|
import hmac
|
|
import json
|
|
import time
|
|
from datetime import datetime
|
|
from urllib.parse import quote_plus, urljoin
|
|
|
|
import click
|
|
import requests
|
|
from pygments import highlight, lexers, formatters
|
|
|
|
|
|
ONCE_CONFIG_FILE = os.getenv('ONCE_CONFIG_FILE', os.path.expanduser('~/.once'))
|
|
ONCE_SIGNATURE_HEADER = 'x-once-signature'
|
|
ONCE_TIMESTAMP_FORMAT = '%Y%m%d%H%M%S%f'
|
|
|
|
|
|
def highlight_json(obj):
|
|
formatted_json = json.dumps(obj, sort_keys=True, indent=4)
|
|
return highlight(formatted_json, lexers.JsonLexer(), formatters.TerminalFormatter())
|
|
|
|
|
|
def echo_obj(obj):
|
|
click.echo(highlight_json(obj))
|
|
|
|
|
|
def get_config(config_file: str = ONCE_CONFIG_FILE) -> configparser.ConfigParser:
|
|
if not os.path.exists(config_file):
|
|
raise ValueError(f'Config file not found at {config_file}')
|
|
config = configparser.ConfigParser()
|
|
config.read(ONCE_CONFIG_FILE)
|
|
return config
|
|
|
|
|
|
def api_req(method: str, url: str, verbose: bool = False, **kwargs):
|
|
config = get_config()
|
|
if not config.has_option('once', 'base_url'):
|
|
raise ValueError(f'Configuration file at {ONCE_CONFIG_FILE} misses `base_url` option')
|
|
|
|
base_url = os.getenv('ONCE_API_URL', config['once']['base_url'])
|
|
secret_key = base64.b64decode(os.getenv('ONCE_SECRET_KEY', config['once']['secret_key']))
|
|
|
|
method = method.lower()
|
|
if method not in ['get', 'post']:
|
|
raise ValueError(f'Unsupported HTTP method "{method}"')
|
|
|
|
actual_url = urljoin(base_url, url)
|
|
|
|
if verbose:
|
|
print(f'{method.upper()} {actual_url}')
|
|
|
|
req = requests.Request(method=method, url=actual_url, **kwargs).prepare()
|
|
plain_text = req.path_url.encode('utf-8')
|
|
hmac_obj = hmac.new(secret_key, msg=plain_text, digestmod=hashlib.sha256)
|
|
req.headers[ONCE_SIGNATURE_HEADER] = base64.b64encode(hmac_obj.digest())
|
|
|
|
response = requests.Session().send(req)
|
|
|
|
if verbose:
|
|
print(f'Server response status: {response.status_code}')
|
|
echo_obj(response.json())
|
|
|
|
return response
|
|
|
|
|
|
@click.command('share')
|
|
@click.argument('file', type=click.File(mode='rb'), required=True)
|
|
@click.option('--verbose', '-v', is_flag=True, default=False, help='Enables verbose output.')
|
|
def share(file: click.File, verbose: bool):
|
|
entry = api_req('GET', '/',
|
|
params={
|
|
'f': quote_plus(os.path.basename(file.name)),
|
|
't': datetime.utcnow().strftime(ONCE_TIMESTAMP_FORMAT)
|
|
},
|
|
verbose=verbose).json()
|
|
|
|
once_url = entry['once_url']
|
|
upload_data = entry['presigned_post']
|
|
files = {'file': file}
|
|
|
|
upload_started = time.time()
|
|
response = requests.post(upload_data['url'],
|
|
data=upload_data['fields'],
|
|
files=files)
|
|
|
|
upload_time = time.time() - upload_started
|
|
print(f"File uploaded in {upload_time}s")
|
|
print(f"File can be downloaded once at: {once_url}")
|
|
|
|
|
|
if __name__ == '__main__':
|
|
share()
|