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vjudge_synchronizer.py
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vjudge_synchronizer.py
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#
# Created by YXH_XianYu 2023.9.29
#
# ----- Imports -----
from selenium import webdriver
from selenium.webdriver.chrome.service import Service
from selenium.webdriver.common.by import By
from selenium.common.exceptions import NoSuchElementException
import time
import yaml
import sys
class VjudgeSynchronizer:
def __init__(self):
# ----- Load Configs -----
yml = yaml.load(open(r'config.yml', 'r', encoding='utf-8'), Loader=yaml.FullLoader)
self.vjudge_link: str = yml['vjudge-link']
self.board_link: str = yml['board-link']
self.contest_length_proportional_scaling: bool = bool(yml['contest-length-proportional-scaling'])
self.vjudge_wait_time: float = yml['vjudge-wait-time']
self.board_wait_time: float = yml['board-wait-time']
self.loop_wait_time: float = yml['loop-wait-time']
self.vjudge_account: str = yml['vjudge-account']
self.vjudge_password: str = yml['vjudge-password']
# ----- Load Web Driver -----
self.wd = webdriver.Chrome(service=Service(r'chromedriver.exe'))
self.haveEnd = self.login_vjudge()
if self.haveEnd:
print("Contest have ended.")
return
self.vjudge_contest_length = self.get_vjudge_contest_length()
self.board_contest_length = self.get_board_contest_length()
print("vjudge contest length: ", self.vjudge_contest_length, "sec")
print("board contest length: ", self.board_contest_length, "sec")
def get_current_time(self):
self.wd.get(self.vjudge_link)
time.sleep(self.vjudge_wait_time)
t1 = [int(i) for i in self.wd.find_element(By.ID, "span-elapsed").text.split(':')]
v1 = t1[0] * 60 * 60 + t1[1] * 60 + t1[2]
return v1
def get_vjudge_contest_length(self):
self.wd.get(self.vjudge_link)
time.sleep(self.vjudge_wait_time)
t1 = [int(i) for i in self.wd.find_element(By.ID, "span-elapsed").text.split(':')]
v1 = t1[0] * 60 * 60 + t1[1] * 60 + t1[2]
t2 = [int(i) for i in self.wd.find_element(By.ID, "span-remaining").text.split(':')]
v2 = t2[0] * 60 * 60 + t2[1] * 60 + t2[2]
return v1 + v2
# 本函数假定该比赛已经结束！
def get_board_contest_length(self):
self.wd.get(self.board_link)
self.wd.implicitly_wait(self.board_wait_time)
t1 = self.wd.find_element(By.XPATH, '//div[contains(text(), "Elapsed:")]').text.split(':')
v1 = int(t1[1]) * 60 * 60 + int(t1[2]) * 60 + int(t1[3])
return v1
def get_current_status(self, process_ratio: int):
self.wd.get(self.board_link + "?progress-ratio=" + str(process_ratio))
self.wd.implicitly_wait(self.board_wait_time)
result = []
problems = self.wd.find_elements(By.XPATH, '//table[@class="standings"]//th[@class="success"]')
for problem in problems:
result.append(problem.text.split("\n"))
# print(result)
return result
# 登录vjudge
# 并返回比赛是否结束
def login_vjudge(self):
self.wd.get(self.vjudge_link)
self.wd.implicitly_wait(self.vjudge_wait_time)
try:
self.wd.find_element(By.XPATH, '//a[@class="nav-link logout"]').click()
except NoSuchElementException:
pass
self.wd.find_element(By.XPATH, '//a[@class="nav-link login"]').click()
self.wd.find_element(By.XPATH, '//input[@id="login-username"]').send_keys(self.vjudge_account)
self.wd.find_element(By.XPATH, '//input[@id="login-password"]').send_keys(self.vjudge_password)
time.sleep(self.vjudge_wait_time)
self.wd.find_element(By.XPATH, '//button[@id="btn-login"]').click()
time.sleep(self.vjudge_wait_time)
while True:
try:
self.wd.find_element(By.XPATH, '//input[@id="login-captcha"]')
print(" ===== Important! ===== ")
print("You need to enter vjudge captcha in terminal:")
captcha = sys.stdin.readline()
self.wd.find_element(By.XPATH, '//input[@id="login-captcha"]').clear()
self.wd.find_element(By.XPATH, '//input[@id="login-captcha"]').send_keys(captcha)
self.wd.find_element(By.XPATH, '//button[@id="btn-login"]').click()
time.sleep(self.vjudge_wait_time)
except NoSuchElementException:
break
return bool(self.wd.find_element(By.XPATH, '//span[@id="info-running"]').text == 'Ended')
def close(self):
self.wd.close()
def get_process_ratio(
self,
current_time: int,
contest_length_proportional_scaling: bool = True):
if not contest_length_proportional_scaling:
assert False, "非等比缩放功能没写，有兴趣可以直接提交PR\ngithub.com/YXHXianYu\n"
else:
return int(1.0 * current_time / self.vjudge_contest_length * 10000)
def get_announcement(self, current_time: int, contest_status):
s = "比赛时间: " + str(int(current_time/3600)) + ":" + str(int(current_time/60%60)) + ":" + str(int(current_time%60)) + "\n"
for i in contest_status:
s += i[0] + " " + i[1] + "; "
s += '\n\n' + 'From github.com/yxhxianyu/vjudge-synchronizer'
return s
def set_announcement(self, announcement: str):
self.wd.get(self.vjudge_link)
time.sleep(self.vjudge_wait_time)
try:
self.wd.find_element(By.XPATH, '//button[@id="btn-update"]').click()
time.sleep(self.vjudge_wait_time)
textarea = self.wd.find_element(By.XPATH, '//textarea[@id="contest-announcement-edit"]')
textarea.click()
textarea.clear()
textarea.send_keys(announcement)
time.sleep(self.vjudge_wait_time)
self.wd.find_element(By.XPATH, '//div[@class="modal-footer"]/button[@id="btn-confirm"]').click()
except NoSuchElementException:
print("Accouncement setting error.")
def run(self):
if not hasattr(self, 'haveEnd'):
print("Initialization error.")
return
if self.haveEnd:
print("Contest have ended.")
return
while True:
current_time = self.get_current_time()
print("current_time: ", current_time)
process_ratio = self.get_process_ratio(current_time)
print("process_ratio: ", process_ratio)
current_status = self.get_current_status(process_ratio)
announcement = self.get_announcement(current_time, current_status)
print("Announcement: ")
print(announcement)
self.set_announcement(announcement)
time.sleep(self.loop_wait_time)
vs = VjudgeSynchronizer()
vs.run()
vs.close()
exit(0)