enable delayed POW checks

enable delayed POW checks via optional "receive time" argument
6 years ago · 609a4a92e2
parent 74ddda8775
commit 609a4a92e2
1 changed files with 3 additions and 2 deletions
--- a/src/protocol.py
+++ b/src/protocol.py
@ -168,13 +168,14 @@ def checkSocksIP(host):

 def isProofOfWorkSufficient(data,
                            nonceTrialsPerByte=0,
-                            payloadLengthExtraBytes=0):
+                            payloadLengthExtraBytes=0,
+                            recvTime=0):
    if nonceTrialsPerByte < defaults.networkDefaultProofOfWorkNonceTrialsPerByte:
        nonceTrialsPerByte = defaults.networkDefaultProofOfWorkNonceTrialsPerByte
    if payloadLengthExtraBytes < defaults.networkDefaultPayloadLengthExtraBytes:
        payloadLengthExtraBytes = defaults.networkDefaultPayloadLengthExtraBytes
    endOfLifeTime, = unpack('>Q', data[8:16])
-    TTL = endOfLifeTime - int(time.time())
+    TTL = endOfLifeTime - (recvTime if recvTime else int(time.time()))
    if TTL < 300:
        TTL = 300
    POW, = unpack('>Q', hashlib.sha512(hashlib.sha512(data[