if verbose:
print """
==================== test for correct non-checksig behaviour %s ================
convert a human-readable script to bin and back: %s
""" % (test_num, chop_to_size(human_script, 200))
bin_script_list = btc_grunt.human_script2bin_list(human_script)
bin_script = btc_grunt.script_list2bin(bin_script_list)
rebin_script_list = btc_grunt.script_bin2list(bin_script)
if rebin_script_list is False:
raise Exception(
"failed test %s - converting script %s to binary list" % (
test_num, chop_to_size(human_script, 200)
)
)
human_script2 = btc_grunt.script_list2human_str(rebin_script_list)
if human_script2 == human_script:
if verbose:
print "pass"
else:
raise Exception(
"test %s failed for correct non-checksig behaviour" % (
test_num, chop_to_size(human_script, 200)
)
)
################################################################################
# unit tests for correctly evaluating a non-checksig script
################################################################################
human_scripts = {
# tx 9 in block 251684 - first use of OP_SIZE, OP_GREATERTHAN, OP_NEGATE
#!/usr/bin/env python2.7 import os, sys # when executing this script directly include the parent dir in the path if ( (__name__ == "__main__") and (__package__ is None) ): os.sys.path.append( os.path.dirname(os.path.dirname(os.path.abspath(__file__))) ) import btc_grunt if len(sys.argv) < 2: raise ValueError( "\n\nUsage: ./script_hex2human_str.py <the script in hex>\n" "eg: ./script_hex2human_str.py 76a914b0c1c1de86419f7c6f3186935e6bd6ccb5" "2b8ee588ac\n\n" ) script_hex = sys.argv[1] script_bin = btc_grunt.hex2bin(script_hex) # convert to a list of binary opcodes and data elements script_list = btc_grunt.script_bin2list(script_bin) # convert to a human readable string print btc_grunt.script_list2human_str(script_list)
def process_tx_body_from_db(tx_dict, human_readable = True):
if (btc_grunt.valid_hex_hash(tx_dict["hash"])):
tx_hash_hex = tx_dict["hash"]
else:
tx_hash_hex = btc_grunt.bin2hex(tx_dict["hash"])
txin_txout_data = queries.get_txins_and_txouts(tx_hash_hex)
count_txins = 0
count_txouts = 0
for (i, row) in enumerate(txin_txout_data):
if (row["type"] == "txin"):
count_txins += 1
prev_txout = {}
if tx_dict["tx_num"] > 0:
prev_txout_script = btc_grunt.hex2bin(
row["prev_txout_script_hex"]
)
prev_txout0 = {
"script": prev_txout_script,
"script_format": row["prev_txout_script_format"],
"script_length": len(prev_txout_script),
"standard_script_pubkey": row["prev_txout_pubkey"],
"standard_script_address": row["prev_txout_address"],
"standard_script_alternate_address": \
row["prev_txout_alternate_address"]
}
prev_txout0["script_list"] = btc_grunt.script_bin2list(
prev_txout_script
)
if human_readable:
prev_txout0["parsed_script"] = \
btc_grunt.script_list2human_str(prev_txout0["script_list"])
prev_txout["output"] = { row["prev_txout_num"]: prev_txout0 }
txin_script = btc_grunt.hex2bin(row["txin_script_hex"])
txin = {
"checksig_validation_status": \
btc_grunt.bin2bool(row["txin_checksig_validation_status"]),
"funds": row["txin_funds"],
"hash": btc_grunt.hex2bin(row["prev_txout_hash_hex"]),
"hash_validation_status": btc_grunt.bin2bool(
row["txin_hash_validation_status"]
),
"index": row["prev_txout_num"],
"index_validation_status": btc_grunt.bin2bool(
row["txin_index_validation_status"]
),
"mature_coinbase_spend_validation_status": \
btc_grunt.bin2bool(
row["txin_mature_coinbase_spend_validation_status"]
),
"script": txin_script,
"script_format": row["txin_script_format"],
"script_length": len(txin_script),
"sequence_num": row["txin_sequence_num"],
"single_spend_validation_status": \
btc_grunt.bin2bool(row["txin_single_spend_validation_status"]),
"spend_from_non_orphan_validation_status": \
btc_grunt.bin2bool(
row["txin_spend_from_non_orphan_validation_status"]
)
}
if tx_dict["tx_num"] > 0:
txin["prev_txs"] = { 0: prev_txout }
txin["script_list"] = btc_grunt.script_bin2list(txin_script)
if human_readable:
txin["parsed_script"] = \
btc_grunt.script_list2human_str(txin["script_list"])
tx_dict["input"][row["txin_num"]] = txin
if (row["type"] == "txout"):
count_txouts += 1
txout_script = btc_grunt.hex2bin(row["txout_script_hex"])
txout = {
"funds": row["txout_funds"],
"script": txout_script,
"script_format": row["txout_script_format"],
"script_length": len(txout_script),
"standard_script_address": row["txout_address"],
"standard_script_alternate_address": \
row["txout_alternate_address"],
"standard_script_address_checksum_validation_status": \
btc_grunt.bin2bool(
row["standard_script_address_checksum_validation_status"]
)
}
if row["txout_pubkey_hex"] is None:
txout["standard_script_pubkey"] = None
else:
txout["standard_script_pubkey"] = \
btc_grunt.hex2bin(row["txout_pubkey_hex"])
txout["script_list"] = btc_grunt.script_bin2list(txout_script)
if human_readable:
txout["parsed_script"] = \
btc_grunt.script_list2human_str(txout["script_list"])
tx_dict["output"][row["txout_num"]] = txout
tx_dict["txins_exist_validation_status"] = \
(count_txins == tx_dict["num_inputs"])
tx_dict["txouts_exist_validation_status"] = \
(count_txouts == tx_dict["num_outputs"])
if human_readable:
tx_dict = btc_grunt.human_readable_tx(tx_dict, 0, 0, 0, 0, None)
return tx_dict