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Code Issues Releases Wiki Activity

Monkeypatching of google.protobuf.text_format

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This commit is contained in:
slush0 2014-02-01 11:29:44 +01:00
parent 366a7aa07d
commit 2782655320
2 changed files with 21 additions and 16 deletions
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17
trezorlib/client.py
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@ -9,21 +9,8 @@ import messages_pb2 as proto
import types_pb2 as types
from api_blockchain import BlockchainApi
# === start monkeypatching: text formatting of protobuf messages
import google.protobuf.text_format
import google.protobuf.descriptor
_oldPrintFieldValue = google.protobuf.text_format.PrintFieldValue
def _customPrintFieldValue(field, value, out, indent=0, as_utf8=False, as_one_line=False):
if field.cpp_type == google.protobuf.descriptor.FieldDescriptor.CPPTYPE_STRING:
if str(field.GetOptions()).strip() == '[binary]:': # binary option set
_oldPrintFieldValue(field, 'hex(%s)' % binascii.hexlify(value), out, indent, as_utf8, as_one_line)
else:
_oldPrintFieldValue(field, value, out, indent, as_utf8, as_one_line)
google.protobuf.text_format.PrintFieldValue = _customPrintFieldValue
# === end of monkeypatching
# monkeypatching: text formatting of protobuf messages
tools.monkeypatch_google_protobuf_text_format()
def show_message(message):
print "MESSAGE FROM DEVICE:", message

20
trezorlib/tools.py
View File

@ -1,4 +1,5 @@
import hashlib
import binascii
Hash = lambda x: hashlib.sha256(hashlib.sha256(x).digest()).digest()
@ -54,7 +55,6 @@ def b58encode(v):
return (__b58chars[0] * nPad) + result
def b58decode(v, length):
""" decode v into a string of len bytes."""
long_value = 0L
@ -80,3 +80,21 @@ def b58decode(v, length):
return None
return result
def monkeypatch_google_protobuf_text_format():
# monkeypatching: text formatting of protobuf messages
import google.protobuf.text_format
import google.protobuf.descriptor
_oldPrintFieldValue = google.protobuf.text_format.PrintFieldValue
def _customPrintFieldValue(field, value, out, indent=0, as_utf8=False, as_one_line=False):
if field.cpp_type == google.protobuf.descriptor.FieldDescriptor.CPPTYPE_STRING and \
str(field.GetOptions()).strip() == '[binary]:': # binary option set
_oldPrintFieldValue(field, 'hex(%s) str(%s)' % (binascii.hexlify(value), value), out, indent, as_utf8, as_one_line)
else:
_oldPrintFieldValue(field, value, out, indent, as_utf8, as_one_line)
google.protobuf.text_format.PrintFieldValue = _customPrintFieldValue