def _write_unassigned_ranges(out_filename):
"""
Downloads ports data from IANA & Wikipedia and converts
it to a python module. This function is used to generate _ranges.py.
"""
with open(out_filename, 'wt') as f:
f.write('# auto-generated by port_for._download_ranges (%s)\n' % datetime.date.today())
f.write('UNASSIGNED_RANGES = [\n')
for range in to_ranges(sorted(list(_unassigned_ports()))):
f.write(" (%d, %d),\n" % range)
f.write(']\n')
def _write_unassigned_ranges(out_filename):
"""
Downloads ports data from IANA & Wikipedia and converts
it to a python module. This function is used to generate _ranges.py.
"""
with open(out_filename, 'wt') as f:
f.write('# auto-generated by port_for._download_ranges (%s)\n' % datetime.date.today())
f.write('UNASSIGNED_RANGES = [\n')
for range in to_ranges(sorted(list(_unassigned_ports()))):
f.write(" (%d, %d),\n" % range)
f.write(']\n')
def good_port_ranges(ports=None, min_range_len=20, border=3):
"""
Returns a list of 'good' port ranges.
Such ranges are large and don't contain ephemeral or well-known ports.
Ranges borders are also excluded.
"""
min_range_len += border*2
if ports is None:
ports = available_ports()
ranges = utils.to_ranges(list(ports))
lenghts = sorted([(r[1]-r[0], r) for r in ranges], reverse=True)
long_ranges = [l[1] for l in lenghts if l[0] >= min_range_len]
without_borders = [(low+border, high-border) for low, high in long_ranges]
return without_borders
def good_port_ranges(ports=None, min_range_len=20, border=3):
"""
Returns a list of 'good' port ranges.
Such ranges are large and don't contain ephemeral or well-known ports.
Ranges borders are also excluded.
"""
min_range_len += border * 2
if ports is None:
ports = available_ports()
ranges = utils.to_ranges(list(ports))
lenghts = sorted([(r[1] - r[0], r) for r in ranges], reverse=True)
long_ranges = [l[1] for l in lenghts if l[0] >= min_range_len]
without_borders = [(low + border, high - border)
for low, high in long_ranges]
return without_borders
