So I have this piece of code in a socket server:
def process(self, request, client_address):
input_file = request.makefile("rb", 0)
output = request.makefile('wb', 0)
remote_input = input_file.readline().strip() + b"\n"
self.log(remote_input)
self.proc.stdin.write(remote_input)
self.proc.stdin.flush()
self.proc.stdout.flush()
while True:
line = self.proc.stdout.readline()
line = line.decode()
if line:
line = bytes(line.rstrip() + "\n", 'utf-8')
output.write(line)
else:
break
Where self.proc is a subprocess with the following setup:
self.proc = subprocess.Popen(
["/bin/bash"],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
stdin=subprocess.PIPE)
It seems to work fine for the first time, then breaks afterwards- for example,
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
hello
/bin/bash: line 1: hello: command not found
this doesn't work
It seems to block at the while True loop found in the first snippet. How can I solve this problem?
