cis-kuldeep/PyBitmessage-2021-04-27
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Cyclic import fix

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- networkDefaultProofOfWorkNonceTrialsPerByte and
  networkDefaultPayloadLengthExtraBytes cyclic import fix
- PyBitmessage should launch now when there's no keys.dat
This commit is contained in:
Peter Šurda 2017-02-08 20:37:42 +01:00
parent 2cc4435cfc
commit 157881bc63
Signed by untrusted user: PeterSurda
GPG Key ID: 0C5F50C0B5F37D87
10 changed files with 75 additions and 72 deletions
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19
src/api.py
View File

@ -20,6 +20,7 @@ import shared
import time import time
from addresses import decodeAddress,addBMIfNotPresent,decodeVarint,calculateInventoryHash,varintDecodeError from addresses import decodeAddress,addBMIfNotPresent,decodeVarint,calculateInventoryHash,varintDecodeError
from configparser import BMConfigParser from configparser import BMConfigParser
import defaults
import helper_inbox import helper_inbox
import helper_sent import helper_sent
import hashlib import hashlib
@ -254,15 +255,15 @@ class MySimpleXMLRPCRequestHandler(SimpleXMLRPCRequestHandler):
elif len(params) == 3: elif len(params) == 3:
label, eighteenByteRipe, totalDifficulty = params label, eighteenByteRipe, totalDifficulty = params
nonceTrialsPerByte = int( nonceTrialsPerByte = int(
protocol.networkDefaultProofOfWorkNonceTrialsPerByte * totalDifficulty) defaults.networkDefaultProofOfWorkNonceTrialsPerByte * totalDifficulty)
payloadLengthExtraBytes = BMConfigParser().get( payloadLengthExtraBytes = BMConfigParser().get(
'bitmessagesettings', 'defaultpayloadlengthextrabytes') 'bitmessagesettings', 'defaultpayloadlengthextrabytes')
elif len(params) == 4: elif len(params) == 4:
label, eighteenByteRipe, totalDifficulty, smallMessageDifficulty = params label, eighteenByteRipe, totalDifficulty, smallMessageDifficulty = params
nonceTrialsPerByte = int( nonceTrialsPerByte = int(
protocol.networkDefaultProofOfWorkNonceTrialsPerByte * totalDifficulty) defaults.networkDefaultProofOfWorkNonceTrialsPerByte * totalDifficulty)
payloadLengthExtraBytes = int( payloadLengthExtraBytes = int(
protocol.networkDefaultPayloadLengthExtraBytes * smallMessageDifficulty) defaults.networkDefaultPayloadLengthExtraBytes * smallMessageDifficulty)
else: else:
raise APIError(0, 'Too many parameters!') raise APIError(0, 'Too many parameters!')
label = self._decode(label, "base64") label = self._decode(label, "base64")
@ -322,15 +323,15 @@ class MySimpleXMLRPCRequestHandler(SimpleXMLRPCRequestHandler):
elif len(params) == 6: elif len(params) == 6:
passphrase, numberOfAddresses, addressVersionNumber, streamNumber, eighteenByteRipe, totalDifficulty = params passphrase, numberOfAddresses, addressVersionNumber, streamNumber, eighteenByteRipe, totalDifficulty = params
nonceTrialsPerByte = int( nonceTrialsPerByte = int(
protocol.networkDefaultProofOfWorkNonceTrialsPerByte * totalDifficulty) defaults.networkDefaultProofOfWorkNonceTrialsPerByte * totalDifficulty)
payloadLengthExtraBytes = BMConfigParser().get( payloadLengthExtraBytes = BMConfigParser().get(
'bitmessagesettings', 'defaultpayloadlengthextrabytes') 'bitmessagesettings', 'defaultpayloadlengthextrabytes')
elif len(params) == 7: elif len(params) == 7:
passphrase, numberOfAddresses, addressVersionNumber, streamNumber, eighteenByteRipe, totalDifficulty, smallMessageDifficulty = params passphrase, numberOfAddresses, addressVersionNumber, streamNumber, eighteenByteRipe, totalDifficulty, smallMessageDifficulty = params
nonceTrialsPerByte = int( nonceTrialsPerByte = int(
protocol.networkDefaultProofOfWorkNonceTrialsPerByte * totalDifficulty) defaults.networkDefaultProofOfWorkNonceTrialsPerByte * totalDifficulty)
payloadLengthExtraBytes = int( payloadLengthExtraBytes = int(
protocol.networkDefaultPayloadLengthExtraBytes * smallMessageDifficulty) defaults.networkDefaultPayloadLengthExtraBytes * smallMessageDifficulty)
else: else:
raise APIError(0, 'Too many parameters!') raise APIError(0, 'Too many parameters!')
if len(passphrase) == 0: if len(passphrase) == 0:
@ -840,7 +841,7 @@ class MySimpleXMLRPCRequestHandler(SimpleXMLRPCRequestHandler):
# Let us do the POW and attach it to the front # Let us do the POW and attach it to the front
target = 2**64 / ((len(encryptedPayload)+requiredPayloadLengthExtraBytes+8) * requiredAverageProofOfWorkNonceTrialsPerByte) target = 2**64 / ((len(encryptedPayload)+requiredPayloadLengthExtraBytes+8) * requiredAverageProofOfWorkNonceTrialsPerByte)
with shared.printLock: with shared.printLock:
print '(For msg message via API) Doing proof of work. Total required difficulty:', float(requiredAverageProofOfWorkNonceTrialsPerByte) / protocol.networkDefaultProofOfWorkNonceTrialsPerByte, 'Required small message difficulty:', float(requiredPayloadLengthExtraBytes) / protocol.networkDefaultPayloadLengthExtraBytes print '(For msg message via API) Doing proof of work. Total required difficulty:', float(requiredAverageProofOfWorkNonceTrialsPerByte) / defaults.networkDefaultProofOfWorkNonceTrialsPerByte, 'Required small message difficulty:', float(requiredPayloadLengthExtraBytes) / defaults.networkDefaultPayloadLengthExtraBytes
powStartTime = time.time() powStartTime = time.time()
initialHash = hashlib.sha512(encryptedPayload).digest() initialHash = hashlib.sha512(encryptedPayload).digest()
trialValue, nonce = proofofwork.run(target, initialHash) trialValue, nonce = proofofwork.run(target, initialHash)
@ -882,8 +883,8 @@ class MySimpleXMLRPCRequestHandler(SimpleXMLRPCRequestHandler):
payload = self._decode(payload, "hex") payload = self._decode(payload, "hex")
# Let us do the POW # Let us do the POW
target = 2 ** 64 / ((len(payload) + protocol.networkDefaultPayloadLengthExtraBytes + target = 2 ** 64 / ((len(payload) + defaults.networkDefaultPayloadLengthExtraBytes +
8) * protocol.networkDefaultProofOfWorkNonceTrialsPerByte) 8) * defaults.networkDefaultProofOfWorkNonceTrialsPerByte)
print '(For pubkey message via API) Doing proof of work...' print '(For pubkey message via API) Doing proof of work...'
initialHash = hashlib.sha512(payload).digest() initialHash = hashlib.sha512(payload).digest()
trialValue, nonce = proofofwork.run(target, initialHash) trialValue, nonce = proofofwork.run(target, initialHash)

10
src/bitmessagemain.py
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@ -26,10 +26,10 @@ import time
from api import MySimpleXMLRPCRequestHandler, StoppableXMLRPCServer from api import MySimpleXMLRPCRequestHandler, StoppableXMLRPCServer
from helper_startup import isOurOperatingSystemLimitedToHavingVeryFewHalfOpenConnections from helper_startup import isOurOperatingSystemLimitedToHavingVeryFewHalfOpenConnections
import defaults
import shared import shared
from helper_sql import sqlQuery from helper_sql import sqlQuery
import state import state
import protocol
import shutdown import shutdown
import threading import threading
@ -149,10 +149,10 @@ class singleAPI(threading.Thread, StoppableThread):
selfInitiatedConnections = {} selfInitiatedConnections = {}
if shared.useVeryEasyProofOfWorkForTesting: if shared.useVeryEasyProofOfWorkForTesting:
protocol.networkDefaultProofOfWorkNonceTrialsPerByte = int( defaults.networkDefaultProofOfWorkNonceTrialsPerByte = int(
protocol.networkDefaultProofOfWorkNonceTrialsPerByte / 100) defaults.networkDefaultProofOfWorkNonceTrialsPerByte / 100)
protocol.networkDefaultPayloadLengthExtraBytes = int( defaults.networkDefaultPayloadLengthExtraBytes = int(
protocol.networkDefaultPayloadLengthExtraBytes / 100) defaults.networkDefaultPayloadLengthExtraBytes / 100)
class Main: class Main:
def start(self, daemon=False): def start(self, daemon=False):

22
src/bitmessageqt/__init__.py
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@ -31,6 +31,7 @@ from addresses import *
import shared import shared
from bitmessageui import * from bitmessageui import *
from configparser import BMConfigParser from configparser import BMConfigParser
import defaults
from namecoin import namecoinConnection, ensureNamecoinOptions from namecoin import namecoinConnection, ensureNamecoinOptions
from newaddressdialog import * from newaddressdialog import *
from newaddresswizard import * from newaddresswizard import *
@ -82,7 +83,6 @@ from inventory import PendingDownload, PendingUpload, PendingUploadDeadlineExcep
import knownnodes import knownnodes
import paths import paths
from proofofwork import getPowType from proofofwork import getPowType
import protocol
import queues import queues
import shutdown import shutdown
import state import state
@ -2417,10 +2417,10 @@ class MyForm(settingsmixin.SMainWindow):
# Demanded difficulty tab # Demanded difficulty tab
if float(self.settingsDialogInstance.ui.lineEditTotalDifficulty.text()) >= 1: if float(self.settingsDialogInstance.ui.lineEditTotalDifficulty.text()) >= 1:
BMConfigParser().set('bitmessagesettings', 'defaultnoncetrialsperbyte', str(int(float( BMConfigParser().set('bitmessagesettings', 'defaultnoncetrialsperbyte', str(int(float(
self.settingsDialogInstance.ui.lineEditTotalDifficulty.text()) * protocol.networkDefaultProofOfWorkNonceTrialsPerByte))) self.settingsDialogInstance.ui.lineEditTotalDifficulty.text()) * defaults.networkDefaultProofOfWorkNonceTrialsPerByte)))
if float(self.settingsDialogInstance.ui.lineEditSmallMessageDifficulty.text()) >= 1: if float(self.settingsDialogInstance.ui.lineEditSmallMessageDifficulty.text()) >= 1:
BMConfigParser().set('bitmessagesettings', 'defaultpayloadlengthextrabytes', str(int(float( BMConfigParser().set('bitmessagesettings', 'defaultpayloadlengthextrabytes', str(int(float(
self.settingsDialogInstance.ui.lineEditSmallMessageDifficulty.text()) * protocol.networkDefaultPayloadLengthExtraBytes))) self.settingsDialogInstance.ui.lineEditSmallMessageDifficulty.text()) * defaults.networkDefaultPayloadLengthExtraBytes)))
if self.settingsDialogInstance.ui.comboBoxOpenCL.currentText().toUtf8() != BMConfigParser().safeGet("bitmessagesettings", "opencl"): if self.settingsDialogInstance.ui.comboBoxOpenCL.currentText().toUtf8() != BMConfigParser().safeGet("bitmessagesettings", "opencl"):
BMConfigParser().set('bitmessagesettings', 'opencl', str(self.settingsDialogInstance.ui.comboBoxOpenCL.currentText())) BMConfigParser().set('bitmessagesettings', 'opencl', str(self.settingsDialogInstance.ui.comboBoxOpenCL.currentText()))
@ -2429,18 +2429,18 @@ class MyForm(settingsmixin.SMainWindow):
if float(self.settingsDialogInstance.ui.lineEditMaxAcceptableTotalDifficulty.text()) >= 1 or float(self.settingsDialogInstance.ui.lineEditMaxAcceptableTotalDifficulty.text()) == 0: if float(self.settingsDialogInstance.ui.lineEditMaxAcceptableTotalDifficulty.text()) >= 1 or float(self.settingsDialogInstance.ui.lineEditMaxAcceptableTotalDifficulty.text()) == 0:
if BMConfigParser().get('bitmessagesettings','maxacceptablenoncetrialsperbyte') != str(int(float( if BMConfigParser().get('bitmessagesettings','maxacceptablenoncetrialsperbyte') != str(int(float(
self.settingsDialogInstance.ui.lineEditMaxAcceptableTotalDifficulty.text()) * protocol.networkDefaultProofOfWorkNonceTrialsPerByte)): self.settingsDialogInstance.ui.lineEditMaxAcceptableTotalDifficulty.text()) * defaults.networkDefaultProofOfWorkNonceTrialsPerByte)):
# the user changed the max acceptable total difficulty # the user changed the max acceptable total difficulty
acceptableDifficultyChanged = True acceptableDifficultyChanged = True
BMConfigParser().set('bitmessagesettings', 'maxacceptablenoncetrialsperbyte', str(int(float( BMConfigParser().set('bitmessagesettings', 'maxacceptablenoncetrialsperbyte', str(int(float(
self.settingsDialogInstance.ui.lineEditMaxAcceptableTotalDifficulty.text()) * protocol.networkDefaultProofOfWorkNonceTrialsPerByte))) self.settingsDialogInstance.ui.lineEditMaxAcceptableTotalDifficulty.text()) * defaults.networkDefaultProofOfWorkNonceTrialsPerByte)))
if float(self.settingsDialogInstance.ui.lineEditMaxAcceptableSmallMessageDifficulty.text()) >= 1 or float(self.settingsDialogInstance.ui.lineEditMaxAcceptableSmallMessageDifficulty.text()) == 0: if float(self.settingsDialogInstance.ui.lineEditMaxAcceptableSmallMessageDifficulty.text()) >= 1 or float(self.settingsDialogInstance.ui.lineEditMaxAcceptableSmallMessageDifficulty.text()) == 0:
if BMConfigParser().get('bitmessagesettings','maxacceptablepayloadlengthextrabytes') != str(int(float( if BMConfigParser().get('bitmessagesettings','maxacceptablepayloadlengthextrabytes') != str(int(float(
self.settingsDialogInstance.ui.lineEditMaxAcceptableSmallMessageDifficulty.text()) * protocol.networkDefaultPayloadLengthExtraBytes)): self.settingsDialogInstance.ui.lineEditMaxAcceptableSmallMessageDifficulty.text()) * defaults.networkDefaultPayloadLengthExtraBytes)):
# the user changed the max acceptable small message difficulty # the user changed the max acceptable small message difficulty
acceptableDifficultyChanged = True acceptableDifficultyChanged = True
BMConfigParser().set('bitmessagesettings', 'maxacceptablepayloadlengthextrabytes', str(int(float( BMConfigParser().set('bitmessagesettings', 'maxacceptablepayloadlengthextrabytes', str(int(float(
self.settingsDialogInstance.ui.lineEditMaxAcceptableSmallMessageDifficulty.text()) * protocol.networkDefaultPayloadLengthExtraBytes))) self.settingsDialogInstance.ui.lineEditMaxAcceptableSmallMessageDifficulty.text()) * defaults.networkDefaultPayloadLengthExtraBytes)))
if acceptableDifficultyChanged: if acceptableDifficultyChanged:
# It might now be possible to send msgs which were previously marked as toodifficult. # It might now be possible to send msgs which were previously marked as toodifficult.
# Let us change them to 'msgqueued'. The singleWorker will try to send them and will again # Let us change them to 'msgqueued'. The singleWorker will try to send them and will again
@ -4112,15 +4112,15 @@ class settingsDialog(QtGui.QDialog):
# Demanded difficulty tab # Demanded difficulty tab
self.ui.lineEditTotalDifficulty.setText(str((float(BMConfigParser().getint( self.ui.lineEditTotalDifficulty.setText(str((float(BMConfigParser().getint(
'bitmessagesettings', 'defaultnoncetrialsperbyte')) / protocol.networkDefaultProofOfWorkNonceTrialsPerByte))) 'bitmessagesettings', 'defaultnoncetrialsperbyte')) / defaults.networkDefaultProofOfWorkNonceTrialsPerByte)))
self.ui.lineEditSmallMessageDifficulty.setText(str((float(BMConfigParser().getint( self.ui.lineEditSmallMessageDifficulty.setText(str((float(BMConfigParser().getint(
'bitmessagesettings', 'defaultpayloadlengthextrabytes')) / protocol.networkDefaultPayloadLengthExtraBytes))) 'bitmessagesettings', 'defaultpayloadlengthextrabytes')) / defaults.networkDefaultPayloadLengthExtraBytes)))
# Max acceptable difficulty tab # Max acceptable difficulty tab
self.ui.lineEditMaxAcceptableTotalDifficulty.setText(str((float(BMConfigParser().getint( self.ui.lineEditMaxAcceptableTotalDifficulty.setText(str((float(BMConfigParser().getint(
'bitmessagesettings', 'maxacceptablenoncetrialsperbyte')) / protocol.networkDefaultProofOfWorkNonceTrialsPerByte))) 'bitmessagesettings', 'maxacceptablenoncetrialsperbyte')) / defaults.networkDefaultProofOfWorkNonceTrialsPerByte)))
self.ui.lineEditMaxAcceptableSmallMessageDifficulty.setText(str((float(BMConfigParser().getint( self.ui.lineEditMaxAcceptableSmallMessageDifficulty.setText(str((float(BMConfigParser().getint(
'bitmessagesettings', 'maxacceptablepayloadlengthextrabytes')) / protocol.networkDefaultPayloadLengthExtraBytes))) 'bitmessagesettings', 'maxacceptablepayloadlengthextrabytes')) / defaults.networkDefaultPayloadLengthExtraBytes)))
# OpenCL # OpenCL
if openclpow.openclAvailable(): if openclpow.openclAvailable():

4
src/bitmessageqt/support.py
View File

@ -7,13 +7,13 @@ import time
import account import account
from configparser import BMConfigParser from configparser import BMConfigParser
from debug import logger from debug import logger
import defaults
from foldertree import AccountMixin from foldertree import AccountMixin
from helper_sql import * from helper_sql import *
from l10n import getTranslationLanguage from l10n import getTranslationLanguage
from openclpow import openclAvailable, openclEnabled from openclpow import openclAvailable, openclEnabled
import paths import paths
from proofofwork import bmpow from proofofwork import bmpow
import protocol
from pyelliptic.openssl import OpenSSL from pyelliptic.openssl import OpenSSL
import queues import queues
import shared import shared
@ -67,7 +67,7 @@ def checkHasNormalAddress():
def createAddressIfNeeded(myapp): def createAddressIfNeeded(myapp):
if not checkHasNormalAddress(): if not checkHasNormalAddress():
queues.addressGeneratorQueue.put(('createRandomAddress', 4, 1, str(QtGui.QApplication.translate("Support", SUPPORT_MY_LABEL)), 1, "", False, protocol.networkDefaultProofOfWorkNonceTrialsPerByte, protocol.networkDefaultPayloadLengthExtraBytes)) queues.addressGeneratorQueue.put(('createRandomAddress', 4, 1, str(QtGui.QApplication.translate("Support", SUPPORT_MY_LABEL)), 1, "", False, defaults.networkDefaultProofOfWorkNonceTrialsPerByte, defaults.networkDefaultPayloadLengthExtraBytes))
while state.shutdown == 0 and not checkHasNormalAddress(): while state.shutdown == 0 and not checkHasNormalAddress():
time.sleep(.2) time.sleep(.2)
myapp.rerenderComboBoxSendFrom() myapp.rerenderComboBoxSendFrom()

10
src/class_addressGenerator.py
View File

@ -9,8 +9,8 @@ import highlevelcrypto
from addresses import * from addresses import *
from configparser import BMConfigParser from configparser import BMConfigParser
from debug import logger from debug import logger
import defaults
from helper_threading import * from helper_threading import *
import protocol
from pyelliptic import arithmetic from pyelliptic import arithmetic
import tr import tr
from binascii import hexlify from binascii import hexlify
@ -80,13 +80,13 @@ class addressGenerator(threading.Thread, StoppableThread):
if nonceTrialsPerByte == 0: if nonceTrialsPerByte == 0:
nonceTrialsPerByte = BMConfigParser().getint( nonceTrialsPerByte = BMConfigParser().getint(
'bitmessagesettings', 'defaultnoncetrialsperbyte') 'bitmessagesettings', 'defaultnoncetrialsperbyte')
if nonceTrialsPerByte < protocol.networkDefaultProofOfWorkNonceTrialsPerByte: if nonceTrialsPerByte < defaults.networkDefaultProofOfWorkNonceTrialsPerByte:
nonceTrialsPerByte = protocol.networkDefaultProofOfWorkNonceTrialsPerByte nonceTrialsPerByte = defaults.networkDefaultProofOfWorkNonceTrialsPerByte
if payloadLengthExtraBytes == 0: if payloadLengthExtraBytes == 0:
payloadLengthExtraBytes = BMConfigParser().getint( payloadLengthExtraBytes = BMConfigParser().getint(
'bitmessagesettings', 'defaultpayloadlengthextrabytes') 'bitmessagesettings', 'defaultpayloadlengthextrabytes')
if payloadLengthExtraBytes < protocol.networkDefaultPayloadLengthExtraBytes: if payloadLengthExtraBytes < defaults.networkDefaultPayloadLengthExtraBytes:
payloadLengthExtraBytes = protocol.networkDefaultPayloadLengthExtraBytes payloadLengthExtraBytes = defaults.networkDefaultPayloadLengthExtraBytes
if command == 'createRandomAddress': if command == 'createRandomAddress':
queues.UISignalQueue.put(( queues.UISignalQueue.put((
'updateStatusBar', tr._translate("MainWindow", "Generating one new address"))) 'updateStatusBar', tr._translate("MainWindow", "Generating one new address")))

41
src/class_singleWorker.py
View File

@ -13,6 +13,7 @@ import sys
import tr import tr
from configparser import BMConfigParser from configparser import BMConfigParser
from debug import logger from debug import logger
import defaults
from helper_sql import * from helper_sql import *
import helper_inbox import helper_inbox
from helper_generic import addDataPadding from helper_generic import addDataPadding
@ -166,7 +167,7 @@ class singleWorker(threading.Thread, StoppableThread):
payload += pubEncryptionKey[1:] payload += pubEncryptionKey[1:]
# Do the POW for this pubkey message # Do the POW for this pubkey message
target = 2 ** 64 / (protocol.networkDefaultProofOfWorkNonceTrialsPerByte*(len(payload) + 8 + protocol.networkDefaultPayloadLengthExtraBytes + ((TTL*(len(payload)+8+protocol.networkDefaultPayloadLengthExtraBytes))/(2 ** 16)))) target = 2 ** 64 / (defaults.networkDefaultProofOfWorkNonceTrialsPerByte*(len(payload) + 8 + defaults.networkDefaultPayloadLengthExtraBytes + ((TTL*(len(payload)+8+defaults.networkDefaultPayloadLengthExtraBytes))/(2 ** 16))))
logger.info('(For pubkey message) Doing proof of work...') logger.info('(For pubkey message) Doing proof of work...')
initialHash = hashlib.sha512(payload).digest() initialHash = hashlib.sha512(payload).digest()
trialValue, nonce = proofofwork.run(target, initialHash) trialValue, nonce = proofofwork.run(target, initialHash)
@ -257,7 +258,7 @@ class singleWorker(threading.Thread, StoppableThread):
payload += signature payload += signature
# Do the POW for this pubkey message # Do the POW for this pubkey message
target = 2 ** 64 / (protocol.networkDefaultProofOfWorkNonceTrialsPerByte*(len(payload) + 8 + protocol.networkDefaultPayloadLengthExtraBytes + ((TTL*(len(payload)+8+protocol.networkDefaultPayloadLengthExtraBytes))/(2 ** 16)))) target = 2 ** 64 / (defaults.networkDefaultProofOfWorkNonceTrialsPerByte*(len(payload) + 8 + defaults.networkDefaultPayloadLengthExtraBytes + ((TTL*(len(payload)+8+defaults.networkDefaultPayloadLengthExtraBytes))/(2 ** 16))))
logger.info('(For pubkey message) Doing proof of work...') logger.info('(For pubkey message) Doing proof of work...')
initialHash = hashlib.sha512(payload).digest() initialHash = hashlib.sha512(payload).digest()
trialValue, nonce = proofofwork.run(target, initialHash) trialValue, nonce = proofofwork.run(target, initialHash)
@ -348,7 +349,7 @@ class singleWorker(threading.Thread, StoppableThread):
dataToEncrypt, hexlify(pubEncryptionKey)) dataToEncrypt, hexlify(pubEncryptionKey))
# Do the POW for this pubkey message # Do the POW for this pubkey message
target = 2 ** 64 / (protocol.networkDefaultProofOfWorkNonceTrialsPerByte*(len(payload) + 8 + protocol.networkDefaultPayloadLengthExtraBytes + ((TTL*(len(payload)+8+protocol.networkDefaultPayloadLengthExtraBytes))/(2 ** 16)))) target = 2 ** 64 / (defaults.networkDefaultProofOfWorkNonceTrialsPerByte*(len(payload) + 8 + defaults.networkDefaultPayloadLengthExtraBytes + ((TTL*(len(payload)+8+defaults.networkDefaultPayloadLengthExtraBytes))/(2 ** 16))))
logger.info('(For pubkey message) Doing proof of work...') logger.info('(For pubkey message) Doing proof of work...')
initialHash = hashlib.sha512(payload).digest() initialHash = hashlib.sha512(payload).digest()
trialValue, nonce = proofofwork.run(target, initialHash) trialValue, nonce = proofofwork.run(target, initialHash)
@ -470,7 +471,7 @@ class singleWorker(threading.Thread, StoppableThread):
payload += highlevelcrypto.encrypt( payload += highlevelcrypto.encrypt(
dataToEncrypt, hexlify(pubEncryptionKey)) dataToEncrypt, hexlify(pubEncryptionKey))
target = 2 ** 64 / (protocol.networkDefaultProofOfWorkNonceTrialsPerByte*(len(payload) + 8 + protocol.networkDefaultPayloadLengthExtraBytes + ((TTL*(len(payload)+8+protocol.networkDefaultPayloadLengthExtraBytes))/(2 ** 16)))) target = 2 ** 64 / (defaults.networkDefaultProofOfWorkNonceTrialsPerByte*(len(payload) + 8 + defaults.networkDefaultPayloadLengthExtraBytes + ((TTL*(len(payload)+8+defaults.networkDefaultPayloadLengthExtraBytes))/(2 ** 16))))
logger.info('(For broadcast message) Doing proof of work...') logger.info('(For broadcast message) Doing proof of work...')
queues.UISignalQueue.put(('updateSentItemStatusByAckdata', ( queues.UISignalQueue.put(('updateSentItemStatusByAckdata', (
ackdata, tr._translate("MainWindow", "Doing work necessary to send broadcast...")))) ackdata, tr._translate("MainWindow", "Doing work necessary to send broadcast..."))))
@ -664,8 +665,8 @@ class singleWorker(threading.Thread, StoppableThread):
# Let us fetch the amount of work required by the recipient. # Let us fetch the amount of work required by the recipient.
if toAddressVersionNumber == 2: if toAddressVersionNumber == 2:
requiredAverageProofOfWorkNonceTrialsPerByte = protocol.networkDefaultProofOfWorkNonceTrialsPerByte requiredAverageProofOfWorkNonceTrialsPerByte = defaults.networkDefaultProofOfWorkNonceTrialsPerByte
requiredPayloadLengthExtraBytes = protocol.networkDefaultPayloadLengthExtraBytes requiredPayloadLengthExtraBytes = defaults.networkDefaultPayloadLengthExtraBytes
queues.UISignalQueue.put(('updateSentItemStatusByAckdata', ( queues.UISignalQueue.put(('updateSentItemStatusByAckdata', (
ackdata, tr._translate("MainWindow", "Doing work necessary to send message.\nThere is no required difficulty for version 2 addresses like this.")))) ackdata, tr._translate("MainWindow", "Doing work necessary to send message.\nThere is no required difficulty for version 2 addresses like this."))))
elif toAddressVersionNumber >= 3: elif toAddressVersionNumber >= 3:
@ -675,13 +676,13 @@ class singleWorker(threading.Thread, StoppableThread):
requiredPayloadLengthExtraBytes, varintLength = decodeVarint( requiredPayloadLengthExtraBytes, varintLength = decodeVarint(
pubkeyPayload[readPosition:readPosition + 10]) pubkeyPayload[readPosition:readPosition + 10])
readPosition += varintLength readPosition += varintLength
if requiredAverageProofOfWorkNonceTrialsPerByte < protocol.networkDefaultProofOfWorkNonceTrialsPerByte: # We still have to meet a minimum POW difficulty regardless of what they say is allowed in order to get our message to propagate through the network. if requiredAverageProofOfWorkNonceTrialsPerByte < defaults.networkDefaultProofOfWorkNonceTrialsPerByte: # We still have to meet a minimum POW difficulty regardless of what they say is allowed in order to get our message to propagate through the network.
requiredAverageProofOfWorkNonceTrialsPerByte = protocol.networkDefaultProofOfWorkNonceTrialsPerByte requiredAverageProofOfWorkNonceTrialsPerByte = defaults.networkDefaultProofOfWorkNonceTrialsPerByte
if requiredPayloadLengthExtraBytes < protocol.networkDefaultPayloadLengthExtraBytes: if requiredPayloadLengthExtraBytes < defaults.networkDefaultPayloadLengthExtraBytes:
requiredPayloadLengthExtraBytes = protocol.networkDefaultPayloadLengthExtraBytes requiredPayloadLengthExtraBytes = defaults.networkDefaultPayloadLengthExtraBytes
logger.debug('Using averageProofOfWorkNonceTrialsPerByte: %s and payloadLengthExtraBytes: %s.' % (requiredAverageProofOfWorkNonceTrialsPerByte, requiredPayloadLengthExtraBytes)) logger.debug('Using averageProofOfWorkNonceTrialsPerByte: %s and payloadLengthExtraBytes: %s.' % (requiredAverageProofOfWorkNonceTrialsPerByte, requiredPayloadLengthExtraBytes))
queues.UISignalQueue.put(('updateSentItemStatusByAckdata', (ackdata, tr._translate("MainWindow", "Doing work necessary to send message.\nReceiver\'s required difficulty: %1 and %2").arg(str(float( queues.UISignalQueue.put(('updateSentItemStatusByAckdata', (ackdata, tr._translate("MainWindow", "Doing work necessary to send message.\nReceiver\'s required difficulty: %1 and %2").arg(str(float(
requiredAverageProofOfWorkNonceTrialsPerByte) / protocol.networkDefaultProofOfWorkNonceTrialsPerByte)).arg(str(float(requiredPayloadLengthExtraBytes) / protocol.networkDefaultPayloadLengthExtraBytes))))) requiredAverageProofOfWorkNonceTrialsPerByte) / defaults.networkDefaultProofOfWorkNonceTrialsPerByte)).arg(str(float(requiredPayloadLengthExtraBytes) / defaults.networkDefaultPayloadLengthExtraBytes)))))
if status != 'forcepow': if status != 'forcepow':
if (requiredAverageProofOfWorkNonceTrialsPerByte > BMConfigParser().getint('bitmessagesettings', 'maxacceptablenoncetrialsperbyte') and BMConfigParser().getint('bitmessagesettings', 'maxacceptablenoncetrialsperbyte') != 0) or (requiredPayloadLengthExtraBytes > BMConfigParser().getint('bitmessagesettings', 'maxacceptablepayloadlengthextrabytes') and BMConfigParser().getint('bitmessagesettings', 'maxacceptablepayloadlengthextrabytes') != 0): if (requiredAverageProofOfWorkNonceTrialsPerByte > BMConfigParser().getint('bitmessagesettings', 'maxacceptablenoncetrialsperbyte') and BMConfigParser().getint('bitmessagesettings', 'maxacceptablenoncetrialsperbyte') != 0) or (requiredPayloadLengthExtraBytes > BMConfigParser().getint('bitmessagesettings', 'maxacceptablepayloadlengthextrabytes') and BMConfigParser().getint('bitmessagesettings', 'maxacceptablepayloadlengthextrabytes') != 0):
# The demanded difficulty is more than we are willing # The demanded difficulty is more than we are willing
@ -689,8 +690,8 @@ class singleWorker(threading.Thread, StoppableThread):
sqlExecute( sqlExecute(
'''UPDATE sent SET status='toodifficult' WHERE ackdata=? ''', '''UPDATE sent SET status='toodifficult' WHERE ackdata=? ''',
ackdata) ackdata)
queues.UISignalQueue.put(('updateSentItemStatusByAckdata', (ackdata, tr._translate("MainWindow", "Problem: The work demanded by the recipient (%1 and %2) is more difficult than you are willing to do. %3").arg(str(float(requiredAverageProofOfWorkNonceTrialsPerByte) / protocol.networkDefaultProofOfWorkNonceTrialsPerByte)).arg(str(float( queues.UISignalQueue.put(('updateSentItemStatusByAckdata', (ackdata, tr._translate("MainWindow", "Problem: The work demanded by the recipient (%1 and %2) is more difficult than you are willing to do. %3").arg(str(float(requiredAverageProofOfWorkNonceTrialsPerByte) / defaults.networkDefaultProofOfWorkNonceTrialsPerByte)).arg(str(float(
requiredPayloadLengthExtraBytes) / protocol.networkDefaultPayloadLengthExtraBytes)).arg(l10n.formatTimestamp())))) requiredPayloadLengthExtraBytes) / defaults.networkDefaultPayloadLengthExtraBytes)).arg(l10n.formatTimestamp()))))
continue continue
else: # if we are sending a message to ourselves or a chan.. else: # if we are sending a message to ourselves or a chan..
logger.info('Sending a message.') logger.info('Sending a message.')
@ -708,8 +709,8 @@ class singleWorker(threading.Thread, StoppableThread):
privEncryptionKeyBase58)) privEncryptionKeyBase58))
pubEncryptionKeyBase256 = unhexlify(highlevelcrypto.privToPub( pubEncryptionKeyBase256 = unhexlify(highlevelcrypto.privToPub(
privEncryptionKeyHex))[1:] privEncryptionKeyHex))[1:]
requiredAverageProofOfWorkNonceTrialsPerByte = protocol.networkDefaultProofOfWorkNonceTrialsPerByte requiredAverageProofOfWorkNonceTrialsPerByte = defaults.networkDefaultProofOfWorkNonceTrialsPerByte
requiredPayloadLengthExtraBytes = protocol.networkDefaultPayloadLengthExtraBytes requiredPayloadLengthExtraBytes = defaults.networkDefaultPayloadLengthExtraBytes
queues.UISignalQueue.put(('updateSentItemStatusByAckdata', ( queues.UISignalQueue.put(('updateSentItemStatusByAckdata', (
ackdata, tr._translate("MainWindow", "Doing work necessary to send message.")))) ackdata, tr._translate("MainWindow", "Doing work necessary to send message."))))
@ -751,9 +752,9 @@ class singleWorker(threading.Thread, StoppableThread):
# the receiver is in any of those lists. # the receiver is in any of those lists.
if shared.isAddressInMyAddressBookSubscriptionsListOrWhitelist(toaddress): if shared.isAddressInMyAddressBookSubscriptionsListOrWhitelist(toaddress):
payload += encodeVarint( payload += encodeVarint(
protocol.networkDefaultProofOfWorkNonceTrialsPerByte) defaults.networkDefaultProofOfWorkNonceTrialsPerByte)
payload += encodeVarint( payload += encodeVarint(
protocol.networkDefaultPayloadLengthExtraBytes) defaults.networkDefaultPayloadLengthExtraBytes)
else: else:
payload += encodeVarint(BMConfigParser().getint( payload += encodeVarint(BMConfigParser().getint(
fromaddress, 'noncetrialsperbyte')) fromaddress, 'noncetrialsperbyte'))
@ -794,7 +795,7 @@ class singleWorker(threading.Thread, StoppableThread):
encryptedPayload += encodeVarint(1) # msg version encryptedPayload += encodeVarint(1) # msg version
encryptedPayload += encodeVarint(toStreamNumber) + encrypted encryptedPayload += encodeVarint(toStreamNumber) + encrypted
target = 2 ** 64 / (requiredAverageProofOfWorkNonceTrialsPerByte*(len(encryptedPayload) + 8 + requiredPayloadLengthExtraBytes + ((TTL*(len(encryptedPayload)+8+requiredPayloadLengthExtraBytes))/(2 ** 16)))) target = 2 ** 64 / (requiredAverageProofOfWorkNonceTrialsPerByte*(len(encryptedPayload) + 8 + requiredPayloadLengthExtraBytes + ((TTL*(len(encryptedPayload)+8+requiredPayloadLengthExtraBytes))/(2 ** 16))))
logger.info('(For msg message) Doing proof of work. Total required difficulty: %f. Required small message difficulty: %f.', float(requiredAverageProofOfWorkNonceTrialsPerByte) / protocol.networkDefaultProofOfWorkNonceTrialsPerByte, float(requiredPayloadLengthExtraBytes) / protocol.networkDefaultPayloadLengthExtraBytes) logger.info('(For msg message) Doing proof of work. Total required difficulty: %f. Required small message difficulty: %f.', float(requiredAverageProofOfWorkNonceTrialsPerByte) / defaults.networkDefaultProofOfWorkNonceTrialsPerByte, float(requiredPayloadLengthExtraBytes) / defaults.networkDefaultPayloadLengthExtraBytes)
powStartTime = time.time() powStartTime = time.time()
initialHash = hashlib.sha512(encryptedPayload).digest() initialHash = hashlib.sha512(encryptedPayload).digest()
@ -918,7 +919,7 @@ class singleWorker(threading.Thread, StoppableThread):
queues.UISignalQueue.put(('updateSentItemStatusByToAddress', ( queues.UISignalQueue.put(('updateSentItemStatusByToAddress', (
toAddress, tr._translate("MainWindow",'Doing work necessary to request encryption key.')))) toAddress, tr._translate("MainWindow",'Doing work necessary to request encryption key.'))))
target = 2 ** 64 / (protocol.networkDefaultProofOfWorkNonceTrialsPerByte*(len(payload) + 8 + protocol.networkDefaultPayloadLengthExtraBytes + ((TTL*(len(payload)+8+protocol.networkDefaultPayloadLengthExtraBytes))/(2 ** 16)))) target = 2 ** 64 / (defaults.networkDefaultProofOfWorkNonceTrialsPerByte*(len(payload) + 8 + defaults.networkDefaultPayloadLengthExtraBytes + ((TTL*(len(payload)+8+defaults.networkDefaultPayloadLengthExtraBytes))/(2 ** 16))))
initialHash = hashlib.sha512(payload).digest() initialHash = hashlib.sha512(payload).digest()
trialValue, nonce = proofofwork.run(target, initialHash) trialValue, nonce = proofofwork.run(target, initialHash)
logger.info('Found proof of work ' + str(trialValue) + ' Nonce: ' + str(nonce)) logger.info('Found proof of work ' + str(trialValue) + ' Nonce: ' + str(nonce))
@ -972,7 +973,7 @@ class singleWorker(threading.Thread, StoppableThread):
payload += encodeVarint(1) # msg version payload += encodeVarint(1) # msg version
payload += encodeVarint(toStreamNumber) + ackdata payload += encodeVarint(toStreamNumber) + ackdata
target = 2 ** 64 / (protocol.networkDefaultProofOfWorkNonceTrialsPerByte*(len(payload) + 8 + protocol.networkDefaultPayloadLengthExtraBytes + ((TTL*(len(payload)+8+protocol.networkDefaultPayloadLengthExtraBytes))/(2 ** 16)))) target = 2 ** 64 / (defaults.networkDefaultProofOfWorkNonceTrialsPerByte*(len(payload) + 8 + defaults.networkDefaultPayloadLengthExtraBytes + ((TTL*(len(payload)+8+defaults.networkDefaultPayloadLengthExtraBytes))/(2 ** 16))))
logger.info('(For ack message) Doing proof of work. TTL set to ' + str(TTL)) logger.info('(For ack message) Doing proof of work. TTL set to ' + str(TTL))
powStartTime = time.time() powStartTime = time.time()

17
src/class_sqlThread.py
View File

@ -10,7 +10,6 @@ import defaults
import helper_sql import helper_sql
from namecoin import ensureNamecoinOptions from namecoin import ensureNamecoinOptions
import paths import paths
import protocol
import queues import queues
import random import random
import state import state
@ -117,9 +116,9 @@ class sqlThread(threading.Thread):
if BMConfigParser().getint('bitmessagesettings', 'settingsversion') == 4: if BMConfigParser().getint('bitmessagesettings', 'settingsversion') == 4:
BMConfigParser().set('bitmessagesettings', 'defaultnoncetrialsperbyte', str( BMConfigParser().set('bitmessagesettings', 'defaultnoncetrialsperbyte', str(
protocol.networkDefaultProofOfWorkNonceTrialsPerByte)) defaults.networkDefaultProofOfWorkNonceTrialsPerByte))
BMConfigParser().set('bitmessagesettings', 'defaultpayloadlengthextrabytes', str( BMConfigParser().set('bitmessagesettings', 'defaultpayloadlengthextrabytes', str(
protocol.networkDefaultPayloadLengthExtraBytes)) defaults.networkDefaultPayloadLengthExtraBytes))
BMConfigParser().set('bitmessagesettings', 'settingsversion', '5') BMConfigParser().set('bitmessagesettings', 'settingsversion', '5')
if BMConfigParser().getint('bitmessagesettings', 'settingsversion') == 5: if BMConfigParser().getint('bitmessagesettings', 'settingsversion') == 5:
@ -240,8 +239,8 @@ class sqlThread(threading.Thread):
# Raise the default required difficulty from 1 to 2 # Raise the default required difficulty from 1 to 2
# With the change to protocol v3, this is obsolete. # With the change to protocol v3, this is obsolete.
if BMConfigParser().getint('bitmessagesettings', 'settingsversion') == 6: if BMConfigParser().getint('bitmessagesettings', 'settingsversion') == 6:
"""if int(shared.config.get('bitmessagesettings','defaultnoncetrialsperbyte')) == protocol.networkDefaultProofOfWorkNonceTrialsPerByte: """if int(shared.config.get('bitmessagesettings','defaultnoncetrialsperbyte')) == defaults.networkDefaultProofOfWorkNonceTrialsPerByte:
shared.config.set('bitmessagesettings','defaultnoncetrialsperbyte', str(protocol.networkDefaultProofOfWorkNonceTrialsPerByte * 2)) shared.config.set('bitmessagesettings','defaultnoncetrialsperbyte', str(defaults.networkDefaultProofOfWorkNonceTrialsPerByte * 2))
""" """
BMConfigParser().set('bitmessagesettings', 'settingsversion', '7') BMConfigParser().set('bitmessagesettings', 'settingsversion', '7')
@ -307,8 +306,8 @@ class sqlThread(threading.Thread):
# With the change to protocol version 3, reset the user-settable difficulties to 1 # With the change to protocol version 3, reset the user-settable difficulties to 1
if BMConfigParser().getint('bitmessagesettings', 'settingsversion') == 8: if BMConfigParser().getint('bitmessagesettings', 'settingsversion') == 8:
BMConfigParser().set('bitmessagesettings','defaultnoncetrialsperbyte', str(protocol.networkDefaultProofOfWorkNonceTrialsPerByte)) BMConfigParser().set('bitmessagesettings','defaultnoncetrialsperbyte', str(defaults.networkDefaultProofOfWorkNonceTrialsPerByte))
BMConfigParser().set('bitmessagesettings','defaultpayloadlengthextrabytes', str(protocol.networkDefaultPayloadLengthExtraBytes)) BMConfigParser().set('bitmessagesettings','defaultpayloadlengthextrabytes', str(defaults.networkDefaultPayloadLengthExtraBytes))
previousTotalDifficulty = int(BMConfigParser().getint('bitmessagesettings', 'maxacceptablenoncetrialsperbyte')) / 320 previousTotalDifficulty = int(BMConfigParser().getint('bitmessagesettings', 'maxacceptablenoncetrialsperbyte')) / 320
previousSmallMessageDifficulty = int(BMConfigParser().getint('bitmessagesettings', 'maxacceptablepayloadlengthextrabytes')) / 14000 previousSmallMessageDifficulty = int(BMConfigParser().getint('bitmessagesettings', 'maxacceptablepayloadlengthextrabytes')) / 14000
BMConfigParser().set('bitmessagesettings','maxacceptablenoncetrialsperbyte', str(previousTotalDifficulty * 1000)) BMConfigParser().set('bitmessagesettings','maxacceptablenoncetrialsperbyte', str(previousTotalDifficulty * 1000))
@ -336,9 +335,9 @@ class sqlThread(threading.Thread):
# sanity check # sanity check
if BMConfigParser().getint('bitmessagesettings', 'maxacceptablenoncetrialsperbyte') == 0: if BMConfigParser().getint('bitmessagesettings', 'maxacceptablenoncetrialsperbyte') == 0:
BMConfigParser().set('bitmessagesettings','maxacceptablenoncetrialsperbyte', str(defaults.ridiculousDifficulty * protocol.networkDefaultProofOfWorkNonceTrialsPerByte)) BMConfigParser().set('bitmessagesettings','maxacceptablenoncetrialsperbyte', str(defaults.ridiculousDifficulty * defaults.networkDefaultProofOfWorkNonceTrialsPerByte))
if BMConfigParser().getint('bitmessagesettings', 'maxacceptablepayloadlengthextrabytes') == 0: if BMConfigParser().getint('bitmessagesettings', 'maxacceptablepayloadlengthextrabytes') == 0:
BMConfigParser().set('bitmessagesettings','maxacceptablepayloadlengthextrabytes', str(defaults.ridiculousDifficulty * protocol.networkDefaultPayloadLengthExtraBytes)) BMConfigParser().set('bitmessagesettings','maxacceptablepayloadlengthextrabytes', str(defaults.ridiculousDifficulty * defaults.networkDefaultPayloadLengthExtraBytes))
# The format of data stored in the pubkeys table has changed. Let's # The format of data stored in the pubkeys table has changed. Let's
# clear it, and the pubkeys from inventory, so that they'll be re-downloaded. # clear it, and the pubkeys from inventory, so that they'll be re-downloaded.

5
src/defaults.py
View File

@ -6,3 +6,8 @@ ridiculousDifficulty = 20000000
# it as default whenever the user changes the "method" selection for # it as default whenever the user changes the "method" selection for
# namecoin integration to "namecoind". # namecoin integration to "namecoind".
namecoinDefaultRpcPort = "8336" namecoinDefaultRpcPort = "8336"
#If changed, these values will cause particularly unexpected behavior: You won't be able to either send or receive messages because the proof of work you do (or demand) won't match that done or demanded by others. Don't change them!
networkDefaultProofOfWorkNonceTrialsPerByte = 1000 #The amount of work that should be performed (and demanded) per byte of the payload.
networkDefaultPayloadLengthExtraBytes = 1000 #To make sending short messages a little more difficult, this value is added to the payload length for use in calculating the proof of work target.

6
src/helper_startup.py
View File

@ -1,5 +1,6 @@
import ConfigParser import ConfigParser
from configparser import BMConfigParser from configparser import BMConfigParser
import defaults
import sys import sys
import os import os
import locale import locale
@ -10,7 +11,6 @@ from distutils.version import StrictVersion
from namecoin import ensureNamecoinOptions from namecoin import ensureNamecoinOptions
import paths import paths
import protocol
import state import state
storeConfigFilesInSameDirectoryAsProgramByDefault = False # The user may de-select Portable Mode in the settings if they want the config files to stay in the application data folder. storeConfigFilesInSameDirectoryAsProgramByDefault = False # The user may de-select Portable Mode in the settings if they want the config files to stay in the application data folder.
@ -92,9 +92,9 @@ def loadConfig():
BMConfigParser().set( BMConfigParser().set(
'bitmessagesettings', 'messagesencrypted', 'false') 'bitmessagesettings', 'messagesencrypted', 'false')
BMConfigParser().set('bitmessagesettings', 'defaultnoncetrialsperbyte', str( BMConfigParser().set('bitmessagesettings', 'defaultnoncetrialsperbyte', str(
protocol.networkDefaultProofOfWorkNonceTrialsPerByte)) defaults.networkDefaultProofOfWorkNonceTrialsPerByte))
BMConfigParser().set('bitmessagesettings', 'defaultpayloadlengthextrabytes', str( BMConfigParser().set('bitmessagesettings', 'defaultpayloadlengthextrabytes', str(
protocol.networkDefaultPayloadLengthExtraBytes)) defaults.networkDefaultPayloadLengthExtraBytes))
BMConfigParser().set('bitmessagesettings', 'minimizeonclose', 'false') BMConfigParser().set('bitmessagesettings', 'minimizeonclose', 'false')
BMConfigParser().set( BMConfigParser().set(
'bitmessagesettings', 'maxacceptablenoncetrialsperbyte', '0') 'bitmessagesettings', 'maxacceptablenoncetrialsperbyte', '0')

13
src/protocol.py
View File

@ -12,6 +12,7 @@ import traceback
from addresses import calculateInventoryHash, encodeVarint, decodeVarint, decodeAddress, varintDecodeError from addresses import calculateInventoryHash, encodeVarint, decodeVarint, decodeAddress, varintDecodeError
from configparser import BMConfigParser from configparser import BMConfigParser
from debug import logger from debug import logger
import defaults
from helper_sql import sqlExecute from helper_sql import sqlExecute
import highlevelcrypto import highlevelcrypto
from inventory import Inventory from inventory import Inventory
@ -29,10 +30,6 @@ BITFIELD_DOESACK = 1
eightBytesOfRandomDataUsedToDetectConnectionsToSelf = pack( eightBytesOfRandomDataUsedToDetectConnectionsToSelf = pack(
'>Q', random.randrange(1, 18446744073709551615)) '>Q', random.randrange(1, 18446744073709551615))
#If changed, these values will cause particularly unexpected behavior: You won't be able to either send or receive messages because the proof of work you do (or demand) won't match that done or demanded by others. Don't change them!
networkDefaultProofOfWorkNonceTrialsPerByte = 1000 #The amount of work that should be performed (and demanded) per byte of the payload.
networkDefaultPayloadLengthExtraBytes = 1000 #To make sending short messages a little more difficult, this value is added to the payload length for use in calculating the proof of work target.
#Compiled struct for packing/unpacking headers #Compiled struct for packing/unpacking headers
#New code should use CreatePacket instead of Header.pack #New code should use CreatePacket instead of Header.pack
Header = Struct('!L12sL4s') Header = Struct('!L12sL4s')
@ -97,10 +94,10 @@ def checkSocksIP(host):
def isProofOfWorkSufficient(data, def isProofOfWorkSufficient(data,
nonceTrialsPerByte=0, nonceTrialsPerByte=0,
payloadLengthExtraBytes=0): payloadLengthExtraBytes=0):
if nonceTrialsPerByte < networkDefaultProofOfWorkNonceTrialsPerByte: if nonceTrialsPerByte < defaults.networkDefaultProofOfWorkNonceTrialsPerByte:
nonceTrialsPerByte = networkDefaultProofOfWorkNonceTrialsPerByte nonceTrialsPerByte = defaults.networkDefaultProofOfWorkNonceTrialsPerByte
if payloadLengthExtraBytes < networkDefaultPayloadLengthExtraBytes: if payloadLengthExtraBytes < defaults.networkDefaultPayloadLengthExtraBytes:
payloadLengthExtraBytes = networkDefaultPayloadLengthExtraBytes payloadLengthExtraBytes = defaults.networkDefaultPayloadLengthExtraBytes
endOfLifeTime, = unpack('>Q', data[8:16]) endOfLifeTime, = unpack('>Q', data[8:16])
TTL = endOfLifeTime - int(time.time()) TTL = endOfLifeTime - int(time.time())
if TTL < 300: if TTL < 300: