Fierelier/chatServer
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Add null-byte after size bytes

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This commit is contained in:
Fierelier 2021-06-30 17:25:14 +02:00
parent 46a32f2255
commit 4cea08c314
2 changed files with 14 additions and 2 deletions
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5
clientBlaster.py
View File

@ -62,12 +62,15 @@ def removeThread():
tprint(colorama.Fore.YELLOW + colorama.Style.BRIGHT + "Thread closed. Threads: " +str(threadCount)+ " (Actual: " +str(threading.active_count())+ ")" + colorama.Style.RESET_ALL)
def sendResponse(connection,data):
connection.sendall(len(data).to_bytes(4,"big") + data)
connection.sendall(len(data).to_bytes(4,"big") + b"\x00" + data)
def getResponse(connection):
data = b''
data = connection.recv(4)
if not data: return False
nul = connection.recv(1)
if not nul: return False
if nul != b"\x00": return False
requestLength = int.from_bytes(data,"big")
if requestLength > maxRequestSize: raise Exception("security","request_too_large")
return connection.recv(requestLength)

11
serverBlaster.py
View File

@ -32,7 +32,7 @@ class receiverThread(threading.Thread):
print("server: " +response)
def sendRequest(connection,data):
connection.sendall(len(data).to_bytes(4,"big") + data)
connection.sendall(len(data).to_bytes(4,"big") + b"\x00" + data)
def getResponse(connection):
data = b''
@ -42,6 +42,15 @@ def getResponse(connection):
connection.close()
return
nul = connection.recv(1)
if not nul:
connection.close()
return
if nul != b"\x00":
connection.close()
return
requestLength = int.from_bytes(data,"big")
data = connection.recv(requestLength)
return data