mirror of
https://github.com/renbaoshuo/S2OJ.git
synced 2024-11-11 13:48:44 +00:00
Baoshuo
33ba0c9d4a
Co-authored-by: Baoshuo Ren <i@baoshuo.ren> Co-authored-by: Kaifeng Lyu <vfleaking@163.com> Co-authored-by: Haoxiang Yu <yhx12243@gmail.com>
611 lines
20 KiB
Python
Executable File
611 lines
20 KiB
Python
Executable File
#!/usr/bin/python3
|
|
|
|
import json
|
|
import sys
|
|
import os
|
|
import pipes
|
|
import socket
|
|
from threading import Thread, Lock, Condition, RLock
|
|
import fcntl
|
|
import shutil
|
|
import time
|
|
import logging
|
|
import codecs
|
|
from contextlib import closing
|
|
from typing import *
|
|
|
|
import requests
|
|
|
|
from queue import Queue, Empty
|
|
|
|
jconf: dict
|
|
|
|
|
|
# os related funciton
|
|
def clean_up_folder(path):
|
|
for f in os.listdir(path):
|
|
f_path = os.path.join(path, f)
|
|
if os.path.isfile(f_path):
|
|
os.unlink(f_path)
|
|
else:
|
|
shutil.rmtree(f_path)
|
|
|
|
|
|
def execute(cmd):
|
|
if os.system(cmd) != 0:
|
|
raise Exception('failed to execute: %s' % cmd)
|
|
|
|
|
|
def freopen(f, g):
|
|
os.dup2(g.fileno(), f.fileno())
|
|
g.close()
|
|
|
|
|
|
# utf 8
|
|
def uoj_text_replace(e):
|
|
return ''.join('<b>\\x%02x</b>' % b for b in e.object[e.start:e.end]), e.end
|
|
|
|
|
|
codecs.register_error('uoj_text_replace', uoj_text_replace)
|
|
|
|
|
|
# init
|
|
def init():
|
|
global jconf
|
|
os.chdir(os.path.dirname(os.path.realpath(__file__)))
|
|
with open('.conf.json', 'r') as fp:
|
|
jconf = json.load(fp)
|
|
assert 'uoj_protocol' in jconf
|
|
assert 'uoj_host' in jconf
|
|
assert 'judger_name' in jconf
|
|
assert 'judger_password' in jconf
|
|
assert 'socket_port' in jconf
|
|
assert 'socket_password' in jconf
|
|
if 'judger_cpus' not in jconf:
|
|
jconf['judger_cpus'] = [
|
|
'0'] # it should be distinct physical cores! Usually, you can just set it to some even numbers
|
|
|
|
|
|
# path related function
|
|
def uoj_url(uri):
|
|
return ("%s://%s%s" % (jconf['uoj_protocol'], jconf['uoj_host'], uri)).rstrip('/')
|
|
|
|
|
|
def uoj_judger_path(path=''):
|
|
return os.getcwd() + "/uoj_judger" + path
|
|
|
|
|
|
class RWLock:
|
|
def __init__(self):
|
|
self.rwlock = 0
|
|
self.writers_waiting = 0
|
|
self.monitor = Lock()
|
|
self.readers_ok = Condition(self.monitor)
|
|
self.writers_ok = Condition(self.monitor)
|
|
|
|
def acquire_read(self):
|
|
self.monitor.acquire()
|
|
while self.rwlock < 0 or self.writers_waiting:
|
|
self.readers_ok.wait()
|
|
self.rwlock += 1
|
|
self.monitor.release()
|
|
|
|
def acquire_write(self):
|
|
self.monitor.acquire()
|
|
while self.rwlock != 0:
|
|
self.writers_waiting += 1
|
|
self.writers_ok.wait()
|
|
self.writers_waiting -= 1
|
|
self.rwlock = -1
|
|
self.monitor.release()
|
|
|
|
def promote(self):
|
|
self.monitor.acquire()
|
|
self.rwlock -= 1
|
|
while self.rwlock != 0:
|
|
self.writers_waiting += 1
|
|
self.writers_ok.wait()
|
|
self.writers_waiting -= 1
|
|
self.rwlock = -1
|
|
self.monitor.release()
|
|
|
|
def demote(self):
|
|
self.monitor.acquire()
|
|
self.rwlock = 1
|
|
self.readers_ok.notifyAll()
|
|
self.monitor.release()
|
|
|
|
def release(self):
|
|
self.monitor.acquire()
|
|
if self.rwlock < 0:
|
|
self.rwlock = 0
|
|
else:
|
|
self.rwlock -= 1
|
|
wake_writers = self.writers_waiting and self.rwlock == 0
|
|
wake_readers = self.writers_waiting == 0
|
|
self.monitor.release()
|
|
if wake_writers:
|
|
self.writers_ok.acquire()
|
|
self.writers_ok.notify()
|
|
self.writers_ok.release()
|
|
elif wake_readers:
|
|
self.readers_ok.acquire()
|
|
self.readers_ok.notify_all()
|
|
self.readers_ok.release()
|
|
|
|
|
|
class Judger:
|
|
problem_data_lock = RWLock()
|
|
send_and_fetch_lock = RLock()
|
|
|
|
judger_id: int
|
|
cpus: str
|
|
main_path: str
|
|
submission: Optional[dict]
|
|
submission_judged: bool
|
|
main_thread: Optional[Thread]
|
|
report_thread: Optional[Thread]
|
|
_taskQ: Queue
|
|
|
|
def log_judge_client_status(self):
|
|
logging.info('submission: ' + str(self.submission))
|
|
|
|
def __init__(self, judger_id, cpus):
|
|
self.judger_id = judger_id
|
|
self.cpus = cpus
|
|
self.main_path = '/tmp/' + jconf['judger_name'] + '/' + str(self.judger_id)
|
|
self.submission = None
|
|
self.main_thread = Thread(target=self._main_loop)
|
|
self.report_thread = None
|
|
self.submission_judged = False
|
|
self._taskQ = Queue()
|
|
|
|
def start(self):
|
|
execute('mkdir -p %s' % (self.main_path + '/result'))
|
|
execute('mkdir -p %s' % (self.main_path + '/work'))
|
|
|
|
self.log_judge_client_status()
|
|
logging.info('hello from judger #%d' % self.judger_id)
|
|
|
|
self.main_thread.start()
|
|
|
|
def suspend(self):
|
|
self._taskQ.put('suspend')
|
|
self._taskQ.join()
|
|
|
|
def resume(self):
|
|
self._taskQ.put('resume')
|
|
self._taskQ.join()
|
|
|
|
def exit(self):
|
|
self._taskQ.put('exit')
|
|
self._taskQ.join()
|
|
self.main_thread.join()
|
|
|
|
# report thread
|
|
def _report_loop(self):
|
|
if 'is_hack' in self.submission:
|
|
return
|
|
while not self.submission_judged:
|
|
try:
|
|
with open(self.main_path + '/result/cur_status.txt', 'r') as f:
|
|
fcntl.flock(f, fcntl.LOCK_SH)
|
|
try:
|
|
status = f.read(100)
|
|
except Exception:
|
|
status = None
|
|
finally:
|
|
fcntl.flock(f, fcntl.LOCK_UN)
|
|
|
|
if status != None:
|
|
data = {}
|
|
data['update-status'] = True
|
|
data['id'] = self.submission['id']
|
|
if 'is_custom_test' in self.submission:
|
|
data['is_custom_test'] = True
|
|
data['status'] = status
|
|
uoj_interact(data)
|
|
time.sleep(0.2)
|
|
except Exception:
|
|
pass
|
|
|
|
def _get_result(self):
|
|
res = {}
|
|
with open(self.main_path + '/result/result.txt', 'r', encoding='utf-8', errors='uoj_text_replace') as fres:
|
|
res['score'] = 0
|
|
res['time'] = 0
|
|
res['memory'] = 0
|
|
while True:
|
|
line = fres.readline()
|
|
if line == '':
|
|
break
|
|
line = line.strip()
|
|
if line == 'details':
|
|
res['details'] = fres.read()
|
|
break
|
|
|
|
sp = line.split()
|
|
assert len(sp) >= 1
|
|
if sp[0] == 'error':
|
|
res['error'] = line[len('error') + 1:]
|
|
else:
|
|
assert len(sp) == 2
|
|
res[sp[0]] = sp[1]
|
|
try:
|
|
res['score'] = int(res['score'])
|
|
except ValueError:
|
|
res['score'] = float(res['score'])
|
|
if not (0 <= res['score'] <= 100):
|
|
res['score'] = 0
|
|
res['error'] = 'Score Error'
|
|
res['time'] = int(res['time'])
|
|
res['memory'] = int(res['memory'])
|
|
res['status'] = 'Judged'
|
|
return res
|
|
|
|
def _remove_problem_data(self, problem_id):
|
|
quoted_path = pipes.quote(uoj_judger_path(f'/data/{problem_id}'))
|
|
execute(f'chmod 700 {quoted_path} -R && rm -rf {quoted_path}')
|
|
|
|
def _update_problem_data_atime(self, problem_id):
|
|
path = uoj_judger_path(f'/data/{problem_id}')
|
|
execute(f'touch -a {pipes.quote(path)}')
|
|
|
|
def _update_problem_data(self, problem_id, problem_mtime):
|
|
Judger.problem_data_lock.acquire_read()
|
|
try:
|
|
copy_name = uoj_judger_path(f'/data/{problem_id}')
|
|
copy_zip_name = uoj_judger_path(f'/data/{problem_id}.zip')
|
|
if os.path.isdir(copy_name):
|
|
if os.path.getmtime(copy_name) >= problem_mtime:
|
|
self._update_problem_data_atime(problem_id)
|
|
return
|
|
else:
|
|
Judger.problem_data_lock.promote()
|
|
self._remove_problem_data(problem_id)
|
|
else:
|
|
Judger.problem_data_lock.promote()
|
|
|
|
del_list = sorted(os.listdir(uoj_judger_path('/data')),
|
|
key=lambda p: os.path.getatime(uoj_judger_path(f'/data/{p}')))[:-99]
|
|
for p in del_list:
|
|
self._remove_problem_data(p)
|
|
|
|
uoj_download(f'/problem/{problem_id}', copy_zip_name)
|
|
execute('cd %s && unzip -q %d.zip && rm %d.zip && chmod -w %d -R' % (
|
|
uoj_judger_path('/data'), problem_id, problem_id, problem_id))
|
|
os.utime(uoj_judger_path(f'/data/{problem_id}'), (time.time(), problem_mtime))
|
|
except Exception:
|
|
self.log_judge_client_status()
|
|
logging.exception('problem update error')
|
|
raise Exception(f'failed to update problem data of #{problem_id}')
|
|
else:
|
|
self.log_judge_client_status()
|
|
logging.info(f'updated problem data of #{problem_id} successfully')
|
|
finally:
|
|
Judger.problem_data_lock.release()
|
|
|
|
def _judge(self):
|
|
clean_up_folder(self.main_path + '/work')
|
|
clean_up_folder(self.main_path + '/result')
|
|
self._update_problem_data(self.submission['problem_id'], self.submission['problem_mtime'])
|
|
|
|
with open(self.main_path + '/work/submission.conf', 'w') as fconf:
|
|
uoj_download(self.submission['content']['file_name'], self.main_path + '/work/all.zip')
|
|
execute("cd %s && unzip -q all.zip && rm all.zip" % pipes.quote(self.main_path + '/work'))
|
|
for k, v in self.submission['content']['config']:
|
|
print(k, v, file=fconf)
|
|
|
|
if 'is_hack' in self.submission:
|
|
if self.submission['hack']['input_type'] == 'USE_FORMATTER':
|
|
uoj_download(self.submission['hack']['input'], self.main_path + '/work/hack_input_raw.txt')
|
|
execute('%s <%s >%s' % (
|
|
pipes.quote(uoj_judger_path('/run/formatter')),
|
|
pipes.quote(self.main_path + '/work/hack_input_raw.txt'),
|
|
pipes.quote(self.main_path + '/work/hack_input.txt')
|
|
))
|
|
else:
|
|
uoj_download(self.submission['hack']['input'], self.main_path + '/work/hack_input.txt')
|
|
print('test_new_hack_only on', file=fconf)
|
|
elif 'is_custom_test' in self.submission:
|
|
print('custom_test on', file=fconf)
|
|
|
|
self.submission_judged = False
|
|
self.report_thread = Thread(target=self._report_loop)
|
|
self.report_thread.start()
|
|
|
|
Judger.problem_data_lock.acquire_read()
|
|
try:
|
|
main_judger_cmd = pipes.quote(uoj_judger_path('/main_judger'))
|
|
if self.cpus != 'all':
|
|
main_judger_cmd = 'taskset -c %s %s' % (pipes.quote(self.cpus), main_judger_cmd)
|
|
execute('cd %s && %s' % (pipes.quote(self.main_path), main_judger_cmd))
|
|
finally:
|
|
Judger.problem_data_lock.release()
|
|
self.submission_judged = True
|
|
self.report_thread.join()
|
|
self.report_thread = None
|
|
|
|
return self._get_result()
|
|
|
|
def _send_and_fetch(self, result=None, fetch_new=True):
|
|
"""send judgement result, and fetch new submission to judge"""
|
|
|
|
data = {}
|
|
files = {}
|
|
|
|
if not fetch_new:
|
|
data['fetch_new'] = False
|
|
|
|
if result is not None:
|
|
data['submit'] = True
|
|
if 'is_hack' in self.submission:
|
|
data['is_hack'] = True
|
|
data['id'] = self.submission['hack']['id']
|
|
if result != False and result['score']:
|
|
try:
|
|
logging.info("succ hack!")
|
|
files = {
|
|
('hack_input', open(self.main_path + '/work/hack_input.txt', 'rb')),
|
|
('std_output', open(self.main_path + '/work/std_output.txt', 'rb'))
|
|
}
|
|
except Exception:
|
|
self.log_judge_client_status()
|
|
logging.exception('hack: submit error')
|
|
result = False
|
|
elif 'is_custom_test' in self.submission:
|
|
data['is_custom_test'] = True
|
|
data['id'] = self.submission['id']
|
|
else:
|
|
data['id'] = self.submission['id']
|
|
|
|
if 'judge_time' in self.submission:
|
|
data['judge_time'] = self.submission['judge_time']
|
|
|
|
if 'tid' in self.submission:
|
|
data['tid'] = self.submission['tid']
|
|
|
|
if result == False:
|
|
result = {
|
|
'score': 0,
|
|
'error': 'Judgment Failed',
|
|
'details': 'Unknown Error'
|
|
}
|
|
result['status'] = 'Judged'
|
|
data['result'] = json.dumps(result, ensure_ascii=False)
|
|
|
|
while True:
|
|
Judger.send_and_fetch_lock.acquire()
|
|
try:
|
|
ret = uoj_interact(data, files)
|
|
except Exception:
|
|
self.log_judge_client_status()
|
|
logging.exception('uoj_interact error')
|
|
else:
|
|
break
|
|
finally:
|
|
Judger.send_and_fetch_lock.release()
|
|
time.sleep(2)
|
|
|
|
try:
|
|
self.submission = json.loads(ret)
|
|
except Exception:
|
|
if ret != 'Nothing to judge':
|
|
logging.info(ret)
|
|
self.submission = None
|
|
return False
|
|
else:
|
|
return True
|
|
|
|
def _main_loop(self):
|
|
while True:
|
|
if not self._taskQ.empty():
|
|
while True:
|
|
task = self._taskQ.get()
|
|
if task == 'resume':
|
|
self._taskQ.task_done()
|
|
break
|
|
elif task == 'exit':
|
|
self._taskQ.task_done()
|
|
return
|
|
else:
|
|
self._taskQ.task_done()
|
|
|
|
if not self._send_and_fetch():
|
|
time.sleep(2)
|
|
continue
|
|
|
|
self.log_judge_client_status()
|
|
logging.info('judging')
|
|
|
|
while True:
|
|
try:
|
|
res = self._judge()
|
|
except Exception:
|
|
self.log_judge_client_status()
|
|
logging.exception('judge error')
|
|
res = False
|
|
if not self._send_and_fetch(result=res, fetch_new=self._taskQ.empty()):
|
|
break
|
|
|
|
|
|
class JudgerServer:
|
|
taskQ: Queue
|
|
judgers: List[Judger]
|
|
socket_thread: Thread
|
|
|
|
def __init__(self):
|
|
self.taskQ = Queue()
|
|
self.judgers = [Judger(i, cpus) for i, cpus in enumerate(jconf['judger_cpus'])]
|
|
self.socket_thread = Thread(target=self._socket_loop)
|
|
|
|
def _socket_loop(self):
|
|
try:
|
|
SOCK_CLOEXEC = 524288
|
|
with closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM | SOCK_CLOEXEC)) as s:
|
|
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
|
|
s.bind(('', jconf['socket_port']))
|
|
s.listen(5)
|
|
|
|
while True:
|
|
try:
|
|
conn, addr = s.accept()
|
|
with closing(conn) as conn:
|
|
data = conn.recv(1024)
|
|
assert data != None
|
|
task = json.loads(data)
|
|
assert task['password'] == jconf['socket_password']
|
|
assert 'cmd' in task
|
|
|
|
self.taskQ.put(task)
|
|
|
|
if task['cmd'] == 'stop':
|
|
logging.info('the judge client is closing...')
|
|
self.taskQ.join()
|
|
conn.sendall(b'ok')
|
|
return 'stop'
|
|
except Exception:
|
|
logging.exception('connection rejected')
|
|
else:
|
|
logging.info('a new task accomplished')
|
|
except Exception:
|
|
self.taskQ.put({'cmd': 'stop'})
|
|
logging.exception('socket server error!')
|
|
|
|
def run(self):
|
|
self.socket_thread.start()
|
|
for judger in self.judgers:
|
|
judger.start()
|
|
|
|
while True:
|
|
task = self.taskQ.get()
|
|
|
|
need_restart = False
|
|
block_wait = False
|
|
|
|
for judger in self.judgers:
|
|
judger.suspend()
|
|
|
|
try:
|
|
while True:
|
|
if task['cmd'] in ['update', 'self-update']:
|
|
try:
|
|
uoj_download('/judger', 'judger_update.zip')
|
|
execute('unzip -o judger_update.zip && cd %s && make clean && make' % uoj_judger_path())
|
|
except:
|
|
print(sys.stderr, "error when update")
|
|
if jconf['judger_name'] == 'main_judger':
|
|
uoj_sync_judge_client()
|
|
need_restart = True
|
|
elif task['cmd'] == 'stop':
|
|
self.taskQ.task_done()
|
|
self.socket_thread.join()
|
|
for judger in self.judgers:
|
|
judger.exit()
|
|
logging.info("goodbye!")
|
|
sys.exit(0)
|
|
|
|
self.taskQ.task_done()
|
|
task = self.taskQ.get(block=block_wait)
|
|
except Empty:
|
|
pass
|
|
|
|
if need_restart:
|
|
os.execl('./judge_client', './judge_client')
|
|
|
|
for judger in self.judgers:
|
|
judger.resume()
|
|
|
|
|
|
# interact with uoj web server
|
|
# TODO: set a larger timeout
|
|
def uoj_interact(data, files={}):
|
|
data = data.copy()
|
|
data.update({
|
|
'judger_name': jconf['judger_name'],
|
|
'password': jconf['judger_password']
|
|
})
|
|
return requests.post(uoj_url('/judge/submit'), data=data, files=files).text
|
|
|
|
|
|
def uoj_download(uri, filename):
|
|
data = {
|
|
'judger_name': jconf['judger_name'],
|
|
'password': jconf['judger_password']
|
|
}
|
|
with open(filename, 'wb') as f:
|
|
r = requests.post(uoj_url('/judge/download' + uri), data=data, stream=True)
|
|
for chunk in r.iter_content(chunk_size=65536):
|
|
if chunk:
|
|
f.write(chunk)
|
|
|
|
|
|
def uoj_sync_judge_client():
|
|
data = {
|
|
'judger_name': jconf['judger_name'],
|
|
'password': jconf['judger_password']
|
|
}
|
|
ret = requests.post(uoj_url('/judge/sync-judge-client'), data=data).text
|
|
if ret != "ok":
|
|
raise Exception('failed to sync judge clients: %s' % ret)
|
|
|
|
|
|
# main function
|
|
def main():
|
|
init()
|
|
|
|
logging.basicConfig(filename='log/judge.log', level=logging.INFO,
|
|
format='%(asctime)-15s [%(levelname)s]: %(message)s')
|
|
|
|
if len(sys.argv) == 1:
|
|
JudgerServer().run()
|
|
if len(sys.argv) == 2:
|
|
if sys.argv[1] == 'start':
|
|
pid = os.fork()
|
|
if pid == -1:
|
|
raise Exception('fork failed')
|
|
elif pid > 0:
|
|
return
|
|
else:
|
|
freopen(sys.stdout, open(os.devnull, 'w'))
|
|
freopen(sys.stderr, open('log/judge.log', 'a', encoding='utf-8', errors='uoj_text_replace'))
|
|
JudgerServer().run()
|
|
elif sys.argv[1] in ['update', 'self-update']:
|
|
try:
|
|
try:
|
|
with closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as s:
|
|
s.connect(('127.0.0.1', jconf['socket_port']))
|
|
s.sendall(json.dumps({
|
|
'password': jconf['socket_password'],
|
|
'cmd': sys.argv[1]
|
|
}).encode())
|
|
return
|
|
except OSError:
|
|
JudgerServer.update(broadcast=sys.argv[1] == 'update')
|
|
return
|
|
except Exception:
|
|
logging.exception('update error')
|
|
raise Exception('update failed')
|
|
elif sys.argv[1] == 'stop':
|
|
try:
|
|
with closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as s:
|
|
s.connect(('127.0.0.1', jconf['socket_port']))
|
|
s.sendall(json.dumps({
|
|
'password': jconf['socket_password'],
|
|
'cmd': 'stop'
|
|
}).encode())
|
|
if s.recv(10) != b'ok':
|
|
raise Exception('stop failed')
|
|
return
|
|
except Exception:
|
|
logging.exception('stop error')
|
|
raise Exception('stop failed')
|
|
raise Exception('invalid argument')
|
|
|
|
|
|
try:
|
|
main()
|
|
except Exception:
|
|
logging.exception('critical error!')
|
|
sys.exit(1)
|