mmgen-wallet/mmgen/globalvars.py

#!/usr/bin/env python
#
# mmgen = Multi-Mode GENerator, command-line Bitcoin cold storage solution
# Copyright (C)2013-2016 Philemon <mmgen-py@yandex.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

"""
globalvars.py:  Constants and configuration options for the MMGen suite
"""

import sys,os
from mmgen.obj import BTCAmt

# Global vars are set to dfl values in class g.
# They're overridden in this order:
#   1 - config file
#   2 - environmental vars
#   3 - command line

class g(object):

	def die(ev=0,s=''):
		if s: sys.stderr.write(s+'\n')
		sys.exit(ev)
	# Variables - these might be altered at runtime:

	version      = '0.9.0'
	release_date = 'December 2016'

	proj_name = 'MMGen'
	proj_url  = 'https://github.com/mmgen/mmgen'
	prog_name = os.path.basename(sys.argv[0])
	author    = 'Philemon'
	email     = '<mmgen@tuta.io>'
	Cdates    = '2013-2016'

	user_entropy   = ''
	hash_preset    = '3'
	usr_randchars  = 30

	tx_fee        = BTCAmt('0.0003')
	tx_fee_adj    = 1.0
	tx_confs      = 3

	seed_len     = 256

	http_timeout = 60

	# Constants - some of these might be overriden, but they don't change thereafter

	debug                = False
	quiet                = False
	no_license           = False
	hold_protect         = True
	color                = (False,True)[sys.stdout.isatty()]
	force_256_color      = False
	testnet              = False
	rpc_host             = ''
	rpc_port             = 0
	rpc_user             = ''
	rpc_password         = ''
	testnet_name         = 'testnet3'
	bogus_wallet_data    = '' # for debugging, used by test suite

	for k in ('win','linux'):
		if sys.platform[:len(k)] == k:
			platform = k; break
	else:
		die(1,"'%s': platform not supported by %s\n" % (sys.platform,proj_name))

	if os.getenv('HOME'):                             # Linux or MSYS
		home_dir = os.getenv('HOME')
	elif platform == 'win': # Windows native:
		die(1,'$HOME not set!  {} for Windows must be run in MSYS environment'.format(proj_name))
	else:
		die(2,'$HOME is not set!  Unable to determine home directory')

	data_dir_root,data_dir,cfg_file = None,None,None
	bitcoin_data_dir = os.path.join(os.getenv('APPDATA'),'Bitcoin') if platform == 'win' \
						else os.path.join(home_dir,'.bitcoin')

	# User opt sets global var:
	common_opts = (
		'color','no_license','rpc_host','rpc_port','testnet','rpc_user','rpc_password',
		'bitcoin_data_dir','force_256_color'
	)
	required_opts = (
		'quiet','verbose','debug','outdir','echo_passphrase','passwd_file','stdout',
		'show_hash_presets','label','keep_passphrase','keep_hash_preset',
		'brain_params','b16','usr_randchars'
	)
	incompatible_opts = (
		('quiet','verbose'),
		('label','keep_label'),
		('tx_id','info'),
		('tx_id','terse_info'),
		('batch','rescan')
	)
	cfg_file_opts = (
		'color','debug','hash_preset','http_timeout','no_license','rpc_host','rpc_port',
		'quiet','tx_fee','tx_fee_adj','usr_randchars','testnet','rpc_user','rpc_password',
		'bitcoin_data_dir','force_256_color'
	)
	env_opts = (
		'MMGEN_BOGUS_WALLET_DATA',
		'MMGEN_DEBUG',
		'MMGEN_QUIET',
		'MMGEN_DISABLE_COLOR',
		'MMGEN_FORCE_256_COLOR',
		'MMGEN_DISABLE_HOLD_PROTECT',
		'MMGEN_MIN_URANDCHARS',
		'MMGEN_NO_LICENSE',
		'MMGEN_RPC_HOST',
		'MMGEN_TESTNET'
	)

	min_screen_width = 80
	minconf = 1

	# Global var sets user opt:
	global_sets_opt = ['minconf','seed_len','hash_preset','usr_randchars','debug',
						'quiet','tx_confs','tx_fee_adj','tx_fee','key_generator']

	keyconv_exec = 'keyconv'

	mins_per_block   = 9
	passwd_max_tries = 5

	max_urandchars = 80
	min_urandchars = 10

	seed_lens = 128,192,256
	mn_lens = [i / 32 * 3 for i in seed_lens]

	mmenc_ext      = 'mmenc'
	salt_len       = 16
	aesctr_iv_len  = 16
	hincog_chk_len = 8

	key_generators = 'python-ecdsa','keyconv','secp256k1' # 1,2,3
	key_generator  = 3 # secp256k1 is default

	hash_presets = {
#   Scrypt params:
#   ID    N   p  r
# N is a power of two
		'1': [12, 8, 1],
		'2': [13, 8, 4],
		'3': [14, 8, 8],
		'4': [15, 8, 12],
		'5': [16, 8, 16],
		'6': [17, 8, 20],
		'7': [18, 8, 24],
	}