mirror of
https://github.com/boltgolt/howdy.git
synced 2024-09-19 09:51:19 +02:00
108 lines
3.2 KiB
Python
Executable file
108 lines
3.2 KiB
Python
Executable file
#!/usr/bin/env python3
|
|
# Used to check cameras before commiting to install
|
|
# Executed before primary apt install of files
|
|
|
|
def col(id):
|
|
"""Add color escape sequences"""
|
|
if id == 1: return "\033[32m"
|
|
if id == 2: return "\033[33m"
|
|
if id == 3: return "\033[31m"
|
|
return "\033[0m"
|
|
|
|
import subprocess
|
|
import time
|
|
import sys
|
|
import os
|
|
import re
|
|
import signal
|
|
|
|
# Backup the config file if we're upgrading
|
|
if "upgrade" in sys.argv:
|
|
# Try to copy the config file as a backup
|
|
try:
|
|
subprocess.call(["cp /lib/security/howdy/config.ini /tmp/howdy_config_backup_v" + sys.argv[2] + ".ini"], shell=True)
|
|
|
|
# Let the user know so he knows where to look on a failed install
|
|
print("Backup of Howdy config file created in /tmp/howdy_config_backup_v" + sys.argv[2] + ".ini")
|
|
except e:
|
|
print("Could not make an backup of old Howdy config file")
|
|
|
|
# Don't continue setup when we're just upgrading
|
|
sys.exit(0)
|
|
|
|
# Don't run if we're not trying to install fresh
|
|
if "install" not in sys.argv:
|
|
sys.exit(0)
|
|
|
|
# The default picked video device id
|
|
picked = -1
|
|
|
|
print(col(1) + "Starting IR camera check...\n" + col(0))
|
|
|
|
# If prompting has been disabled, skip camera check
|
|
if "HOWDY_NO_PROMPT" in os.environ:
|
|
print(col(2) + "AUTOMATED INSTALL, YOU WILL NOT BE ASKED FOR INPUT AND CHECKS WILL BE SKIPPED" + col(0))
|
|
|
|
# Write the default device to disk and exit
|
|
with open("/tmp/howdy_picked_device", "w") as out_file:
|
|
out_file.write("0")
|
|
|
|
sys.exit(0)
|
|
|
|
# Get all devices
|
|
devices = os.listdir("/dev")
|
|
|
|
# Loop though all devices
|
|
for dev in devices:
|
|
# Only use the video devices
|
|
if (dev[:5] == "video"):
|
|
time.sleep(.5)
|
|
|
|
# The full path to the device is the default name
|
|
device_name = "/dev/" + dev
|
|
# Get the udevadm details to try to get a better name
|
|
udevadm = subprocess.check_output(["udevadm info -r --query=all -n " + device_name], shell=True).decode("utf-8")
|
|
|
|
# Loop though udevadm to search for a better name
|
|
for line in udevadm.split("\n"):
|
|
# Match it and encase it in quotes
|
|
re_name = re.search('product.*=(.*)$', line, re.IGNORECASE)
|
|
if re_name:
|
|
device_name = '"' + re_name.group(1) + '"'
|
|
|
|
# Show what device we're using
|
|
print("Trying " + device_name)
|
|
|
|
# Let fswebcam keep the camera open in the background
|
|
sub = subprocess.Popen(["fswebcam -S 9999999999 -d /dev/" + dev + " /dev/null 2>/dev/null"], shell=True, preexec_fn=os.setsid)
|
|
|
|
try:
|
|
# Ask the user if this is the right one
|
|
print(col(2) + "One of your cameras should now be on." + col(0))
|
|
ans = input("Did your IR emitters turn on? [y/N]: ")
|
|
except KeyboardInterrupt:
|
|
# Kill fswebcam if the user aborts
|
|
os.killpg(os.getpgid(sub.pid), signal.SIGTERM)
|
|
raise
|
|
|
|
# The user has answered, kill fswebcam
|
|
os.killpg(os.getpgid(sub.pid), signal.SIGTERM)
|
|
|
|
# Set this camera as picked if the answer was yes, go to the next one if no
|
|
if ans.lower().strip() == "y" or ans.lower().strip() == "yes":
|
|
picked = dev[5:]
|
|
break
|
|
else:
|
|
print("Interpreting as a " + col(3) + "\"NO\"\n" + col(0))
|
|
|
|
# Abort if no camera was picked
|
|
if picked == -1:
|
|
print(col(3) + "No suitable IR camera found, aborting install." + col(0))
|
|
sys.exit(23)
|
|
|
|
# Write the result to disk so postinst can have a look at it
|
|
with open("/tmp/howdy_picked_device", "w") as out_file:
|
|
out_file.write(str(picked))
|
|
|
|
# Add a line break
|
|
print("")
|