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A transaction can have multiple recipients (i.e. for transfers), so take

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the first non-OP_RETURN one when we have a choice.
This commit is contained in:
Jude Nelson
2015-08-17 12:07:47 -04:00
parent 49996060bf
commit 2bc915faad
1 changed files with 9 additions and 7 deletions
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16
blockstore/lib/nameset/virtualchain_hooks.py
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@@ -38,17 +38,21 @@ log = virtualchain.session.log
blockstore_db = None
last_load_time = 0
def get_recipient_from_nameop_outputs(outputs):
def get_recipient_from_nameop_outputs( outputs ):
"""
Find the script_pubkey hex string from the
first non-OP_RETURN transaction in a list of
transaction outputs (i.e. there are expected
to be two transactions: the OP_RETURN with
to be two transactions for everything except
for NAME_TRANSFER operations: the OP_RETURN with
the 'transfer' operation, and the one with
the script_pubkey).
There should only be one recipient. Raise an exception if
there are more than one, or zero.
NAME_TRANSFER operations have three recipients:
the sender, the receiver, and the OP_RETURN.
By construction, the recipient's address in
the NAME_TRANSFER operation is the first
non-OP_RETURN address.
"""
ret = None
@@ -61,10 +65,8 @@ def get_recipient_from_nameop_outputs(outputs):
if output_asm[0:9] != 'OP_RETURN' and output_hex:
if ret is not None:
raise Exception("Multiple recipients are unsupported")
ret = output_hex
break
if ret is None:
raise Exception("No recipients found")