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import sys
import getopt
import subprocess
from sys import argv
try:
import zbar
except ImportError as e:
print('Cannot run gnunet-qr, please install the zbar module.')
print('For Debian, you can obtain it as "python-zbar".')
print('Upstream: http://zbar.sourceforge.net/')
sys.exit(1)
def help():
print('gnunet-qr\n\
Scan a QR code using a video device and import\n\
Arguments mandatory for long options are also mandatory for short options.\n\
-c, --config FILENAME use configuration file FILENAME\n\
-d, --device DEVICE use device DEVICE\n\
-s, --silent do not show preview windows\n\
-h, --help print this help\n\
-v, --verbose be verbose\n\
Report bugs to gnunet-developers@gnu.org.\n\
GNUnet home page: https://gnunet.org/\n\
General help using GNU software: https://www.gnu.org/gethelp/')
if __name__ == '__main__':
configuration = ''
device = '/dev/video0'
url = ''
verbose = False
silent = False
# Parse arguments
try:
opts, args = getopt.gnu_getopt(sys.argv[1:], "c:hd:sv", ["config", "help", "device", "silent", "verbose"])
except getopt.GetoptError as e:
help()
print(str(e))
exit(1)
for o, a in opts:
if o in ("-h", "--help"):
help()
sys.exit(0)
elif o in ("-c", "--config"):
configuration = a
elif o in ("-d", "--device"):
device = a
elif o in ("-s", "--silent"):
silent = True
elif o in ("-v", "--verbose"):
verbose = True
if (True == verbose):
print('Initializing')
# create a Processor
proc = zbar.Processor()
# configure the Processor
proc.parse_config('enable')
# initialize the Processor
try:
if (True == verbose):
print('Opening video device ' + device)
proc.init(device)
except Exception as e:
print('Failed to open device ' + device)
exit(1)
# enable the preview window
# if (True == silent):
# proc.visible = True
# else:
# proc.visible = False
proc.visible = True
# read at least one barcode (or until window closed)
try:
if (True == verbose):
print('Capturing')
proc.process_one()
except Exception as e:
# Window was closed without finding code
exit(1)
# hide the preview window
proc.visible = False
# extract results
for symbol in proc.results:
# do something useful with results
if (True == verbose):
print('Found ', symbol.type, ' symbol ', '"%s"' % symbol.data)
args = list()
args.append("gnunet-uri")
if (configuration != ''):
args.append(str("-c " + str(configuration)))
args.append(str(symbol.data))
cmd = ''
for a in args:
cmd += " " + str(a)
if (verbose):
print('Running `' + cmd +'`')
res = subprocess.call(args)
if (0 != res):
print('Failed to add URI ' + str(symbol.data))
else:
print('Added URI ' + str(symbol.data))
exit(res)
exit(1)
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