def get_view_state(self, url_suffix, **kwargs):
""" 获取页面 view_state 值"""
res = self.get(url_suffix, allow_redirects=False, **kwargs)
res.raise_for_status()
if res.status_code == 302:
raise requests.TooManyRedirects
return get_view_state_from_html(res.text)
def _get_payload(self, html):
''' 获取课表post 的参数 '''
view_state = get_view_state_from_html(html)
payload = {
'__VIEWSTATE': view_state,
['xnd', 'xn'][self.schedule_type]: self.schedule_year,
['xqd', 'xq'][self.schedule_type]: self.schedule_term
}
return payload
def _get_login_payload(self, login_url, **kwargs):
''' 获取登录页面的 请求参数'''
try:
kwargs['timeout'] = 3
res = self._get(login_url, **kwargs)
except RequestException:
# 首次请求可能出现 Connection aborted
res = self._get(login_url, **kwargs)
view_state = get_view_state_from_html(res.text)
return {'__VIEWSTATE': view_state}
def _get_login_payload(self, login_url, **kwargs):
''' 获取登录页面的 请求参数'''
try:
kwargs['timeout'] = 3
res = self._get(login_url, **kwargs)
except RequestException:
# 首次请求可能出现 Connection aborted
res = self._get(login_url, **kwargs)
url_info = res.url.split(login_url)[0].split('/(')
if len(url_info) == 2:
self._update_url_token('/(' + url_info[1])
view_state = get_view_state_from_html(res.text)
return {'__VIEWSTATE': view_state}
def _get_api_by_bm(self, class_name, **kwargs):
''' 部门教师 查询学生班级课表 共3个请求'''
# steps 1: 获取课表 view_state
try:
res = self._get(self.schedule_url, **kwargs)
if res.status_code != 200:
raise RequestException
view_state = get_view_state_from_html(res.text)
except RequestException:
raise ScheduleException(self.code, '获取课表请求参数失败')
# steps 2: 选择课表 学年学期
if self.schedule_year and self.schedule_term:
payload = {
'__VIEWSTATE': view_state,
'xn': self.schedule_year,
'xq': self.schedule_term
}
try:
res = self._post(self.schedule_url, data=payload, **kwargs)
if res.status_code != 200:
raise RequestException
except RequestException:
raise ScheduleException(self.code, '获取课表请求参数失败')
# steps 3: 获取课表数据
payload = self._get_payload_by_bm(res.content.decode('gbk'),
class_name)
try:
res = self._post(self.schedule_url, data=payload, **kwargs)
if res.status_code != 200:
raise RequestException
except RequestException:
raise ScheduleException(self.code, '获取课表信息失败')
html = res.content.decode('gbk')
schedule = ScheduleParse(html, self.time_list,
self.schedule_type).get_schedule_dict()
return schedule
def get_view_state(self, url_suffix, **kwargs):
""" 获取页面 view_state 值"""
res = self.get(url_suffix, **kwargs)
return get_view_state_from_html(res.text)
def get_view_state(self, url_suffix, **kwargs):
res = self.get(url_suffix, allow_redirects=False, **kwargs)
if res.status_code != 200:
raise requests.RequestException
return get_view_state_from_html(res.text)