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#!/usr/bin/python3
# SPDX-License-Identifier: LGPL-3.0-or-later
# Copyright (c) 2020 Daniel Thompson
import argparse
import random
import os.path
import pexpect
import time
import string
import sys
def pbar(iterable, quiet=False):
step = 100 / len(iterable)
for i, v in enumerate(iterable):
if not quiet:
percent = round(step * i, 1)
bar = int(percent) // 2
print(f'[{"#"*bar}{"."*(50-bar)}] {percent}%', end='\r', flush=True)
yield v
if not quiet:
print(f'[{"#"*50}] 100% ')
def sync(c):
"""Stop the watch and synchronize with the command prompt.
Sending a random print ensure the final export (of the prompt)
does not accidentally match a previously issued prompt.
"""
tag = ''.join([random.choice(string.ascii_uppercase) for i in range(6)])
c.send('\x03')
c.expect('>>> ')
c.sendline(f'print("{tag[:3]}""{tag[3:]}")')
c.expect(tag)
c.expect('>>> ')
def unsync(c):
"""Set the watch running again.
There must be an expect (or a sleep) since if we kill the subordinate
process too early then the sendline will not have completed.
"""
c.sendline('wasp.system.run()')
c.expect('Watch is running, use Ctrl-C to stop')
c.send('\x18')
def paste(c, f, verbose=False):
docstring = False
tosend = []
for ln in f.readlines():
ln = ln.rstrip()
# This is a bit loose (definitely not PEP-257 compliant) but
# is enough for most code.
if ln.lstrip().startswith('"""'):
docstring = True
if docstring:
if ln.rstrip().endswith('"""'):
docstring = False
continue
if ln.lstrip().startswith('#'):
continue
tosend.append(ln)
for ln in pbar(tosend, verbose):
c.sendline(ln)
c.expect('=== ')
def handle_eval(c, cmd):
verbose = bool(c.logfile)
c.send('\x05')
c.expect('=== ')
c.sendline(cmd)
c.expect('=== ')
c.logfile = sys.stdout
c.send('\x04')
c.expect('>>> ')
if not verbose:
c.logfile = None
def handle_exec(c, fname):
verbose = bool(c.logfile)
with open(fname) as f:
if not verbose:
print(f'Preparing to run {fname}:')
c.send('\x05')
c.expect('=== ')
paste(c, f, verbose)
c.logfile = sys.stdout
c.send('\x04')
c.expect('>>> ')
if not verbose:
c.logfile = None
def handle_rtc(c):
# Wait for the clock to tick over to the next second
now = then = time.localtime()
while now[5] == then[5]:
now = time.localtime()
# Set the time
c.sendline(f'watch.rtc.set_localtime(({now[0]}, {now[1]}, {now[2]}, {now[3]}, {now[4]}, {now[5]}, {now[6]}, {now[7]}))')
c.expect('>>> ')
def handle_upload(c, fname):
verbose = bool(c.logfile)
c.sendline('from shell import upload')
c.expect('>>> ')
with open(fname) as f:
if not verbose:
print(f'Uploading {fname}:')
c.sendline(f'upload("{os.path.basename(fname)}")')
c.expect('=== ')
paste(c, f, verbose)
c.send('\x04')
c.expect('>>> ')
if __name__ == '__main__':
parser = argparse.ArgumentParser(
description='WASP command and control client')
parser.add_argument('--console', action='store_true',
help='Launch a REPL session')
parser.add_argument('--device',
help='Connect only to a specific named device')
parser.add_argument('--exec',
help='Execute the contents of a file')
parser.add_argument('--eval',
help='Execute the provided python string')
parser.add_argument('--rtc', action='store_true',
help='Set the time on the WASP device')
parser.add_argument('--upload',
help='Copy the specified file to the WASP device')
parser.add_argument('--verbose', action='store_true',
help='Log interaction with the WASP device')
args = parser.parse_args()
device_name = args.device
pynus = os.path.dirname(sys.argv[0]) + '/pynus/pynus.py'
console = pexpect.spawn(pynus, encoding='UTF-8')
if args.verbose:
console.logfile = sys.stdout
console.expect('Connect')
console.expect('Exit console using Ctrl-X')
time.sleep(0.5)
sync(console)
if args.rtc:
handle_rtc(console)
if args.exec:
handle_exec(console, args.exec)
if args.eval:
handle_eval(console, args.eval)
if args.upload:
handle_upload(console, args.upload)
if args.console:
console.close()
os.execl(pynus, pynus)
unsync(console)
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