def disassemble_scripts(input_script, output_script, lock_time, signature_for_hash_type_f):
"yield pre_annotations, pc, opcode, instruction, post_annotations"
input_annotations_f, output_annotations_f = annotation_f_for_scripts(
input_script, output_script, signature_for_hash_type_f)
pc = 0
while pc < len(input_script):
opcode, data, new_pc = get_opcode(input_script, pc)
pre_annotations, post_annotations = input_annotations_f(pc, opcode, data)
yield pre_annotations, pc, opcode, instruction_for_opcode(opcode, data), post_annotations
pc = new_pc
pc = 0
while pc < len(output_script):
opcode, data, new_pc = get_opcode(output_script, pc)
pre_annotations, post_annotations = output_annotations_f(pc, opcode, data)
yield pre_annotations, pc, opcode, instruction_for_opcode(opcode, data), post_annotations
pc = new_pc
if not is_pay_to_script_hash(output_script):
return
stack = []
eval_script(input_script, signature_for_hash_type_f, lock_time, expected_hash_type=None, stack=stack)
if stack:
signatures, new_output_script = stack[:-1], stack[-1]
new_input_script = bin_script(signatures)
else:
signatures, new_output_script, new_input_script = [], b'', b''
for r in disassemble_scripts(new_input_script, new_output_script, lock_time, signature_for_hash_type_f):
yield r
def annotation_f_for_scripts(input_script, output_script, signature_for_hash_type_f):
is_p2sh = is_pay_to_script_hash(output_script)
in_ap = b'\0'
out_ap = b'\0'
if is_p2sh:
out_ap = b'\5'
def input_annotations_f(pc, opcode, data):
a0, a1 = [], []
if pc == 0:
a0.append("--- SIGNATURE SCRIPT START")
ld = len(data) if data is not None else 0
if ld in (71, 72) and not is_p2sh:
add_signature_annotations(a1, data, signature_for_hash_type_f, output_script)
if ld == 20:
add_address_annotations(a1, data, address_prefix=in_ap)
if ld in (33, 65):
add_sec_annotations(a1, data, address_prefix=in_ap)
return a0, a1
def output_annotations_f(pc, opcode, data):
a0, a1 = [], []
if pc == 0:
a0.append("--- PUBLIC KEY SCRIPT START")
ld = len(data) if data is not None else 0
if ld == 20:
add_address_annotations(a1, data, address_prefix=out_ap)
if ld in (33, 65):
add_sec_annotations(a1, data, address_prefix=out_ap)
return a0, a1
return input_annotations_f, output_annotations_f
def annotation_f_for_scripts(input_script, output_script, signature_for_hash_type_f):
is_p2sh = is_pay_to_script_hash(output_script)
in_ap = b'\0'
out_ap = b'\0'
if is_p2sh:
out_ap = b'\5'
iaf = _make_input_annotations_f(input_script, output_script, signature_for_hash_type_f, in_ap, is_p2sh)
oaf = _make_output_annotations_f(input_script, output_script, signature_for_hash_type_f, out_ap)
return iaf, oaf
def annotation_f_for_scripts(input_script, output_script,
signature_for_hash_type_f):
is_p2sh = is_pay_to_script_hash(output_script)
in_ap = b'\0'
out_ap = b'\0'
if is_p2sh:
out_ap = b'\5'
iaf = _make_input_annotations_f(input_script, output_script,
signature_for_hash_type_f, in_ap, is_p2sh)
oaf = _make_output_annotations_f(input_script, output_script,
signature_for_hash_type_f, out_ap)
return iaf, oaf
