307 lines
11 KiB
Python
307 lines
11 KiB
Python
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import re
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from datetime import datetime
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from bs4 import BeautifulSoup
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from fastapi import APIRouter, Depends
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from fastapi.responses import JSONResponse
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from httpx import HTTPError
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from pydantic import ValidationError
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from loveace.router.endpoint.jwc.model.base import JWCConfig
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from loveace.router.endpoint.jwc.model.term import CurrentTermInfo, TermItem
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from loveace.router.schemas.error import ProtectRouterErrorToCode
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from loveace.router.schemas.uniresponse import UniResponseModel
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from loveace.service.remote.aufe import AUFEConnection
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from loveace.service.remote.aufe.depends import get_aufe_conn
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jwc_term_router = APIRouter(
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prefix="/term",
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responses=ProtectRouterErrorToCode().gen_code_table(),
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)
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ENDPOINT = {
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"all_terms": "/student/courseSelect/calendarSemesterCurriculum/index",
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"calendar": "/indexCalendar",
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}
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@jwc_term_router.get(
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"/all",
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summary="获取所有学期信息",
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response_model=UniResponseModel[list[TermItem]],
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)
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async def get_all_terms(
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conn: AUFEConnection = Depends(get_aufe_conn),
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) -> UniResponseModel[list[TermItem]] | JSONResponse:
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"""
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获取用户可选的所有学期列表
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✅ 功能特性：
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- 获取从入学至今的所有学期
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- 标记当前学期
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- 学期名称格式统一处理
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💡 使用场景：
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- 选课系统的学期选择菜单
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- 成绩查询的学期选择
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- 课程表查询的学期选择
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Returns:
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list[TermItem]: 学期列表，包含学期代码、名称、是否为当前学期
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"""
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try:
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all_terms = []
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response = await conn.client.get(
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JWCConfig().to_full_url(ENDPOINT["all_terms"]),
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follow_redirects=True,
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timeout=conn.timeout,
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)
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if response.status_code != 200:
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conn.logger.error(f"获取学期信息失败，状态码: {response.status_code}")
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return ProtectRouterErrorToCode().remote_service_error.to_json_response(
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conn.logger.trace_id
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)
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# 解析HTML获取学期选项
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soup = BeautifulSoup(response.text, "lxml")
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# 查找学期选择下拉框
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select_element = soup.find("select", {"id": "planCode"})
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if not select_element:
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conn.logger.error("未找到学期选择框")
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return UniResponseModel[list[TermItem]](
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success=False,
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data=[],
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message="未找到学期选择框",
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error=None,
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)
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terms = {}
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# 使用更安全的方式处理选项
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try:
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options = select_element.find_all("option") # type: ignore
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for option in options:
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value = option.get("value") # type: ignore
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text = option.get_text(strip=True) # type: ignore
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# 跳过空值选项（如"全部"）
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if value and str(value).strip() and text != "全部":
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terms[str(value)] = text
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except AttributeError:
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conn.logger.error("解析学期选项失败")
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return UniResponseModel[list[TermItem]](
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success=False,
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data=[],
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message="解析学期选项失败",
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error=None,
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)
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conn.logger.info(f"成功获取{len(terms)}个学期信息")
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counter = 0
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# 遍历学期选项，提取学期代码和名称
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# 将学期中的 "春" 替换为 "下" ， "秋" 替换为 "上"
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for key, value in terms.items():
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counter += 1
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value = value.replace("春", "下").replace("秋", "上")
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all_terms.append(
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TermItem(term_code=key, term_name=value, is_current=counter == 1)
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)
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return UniResponseModel[list[TermItem]](
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success=True,
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data=all_terms,
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message="获取学期信息成功",
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error=None,
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)
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except ValidationError as ve:
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conn.logger.error(f"数据验证错误: {ve}")
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return ProtectRouterErrorToCode().validation_error.to_json_response(
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conn.logger.trace_id
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)
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except HTTPError as he:
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conn.logger.error(f"HTTP请求错误: {he}")
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return ProtectRouterErrorToCode().remote_service_error.to_json_response(
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conn.logger.trace_id
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)
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except Exception as e:
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conn.logger.exception(e)
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return ProtectRouterErrorToCode().server_error.to_json_response(
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conn.logger.trace_id
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)
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@jwc_term_router.get(
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"/current",
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summary="获取当前学期信息",
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response_model=UniResponseModel[CurrentTermInfo],
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)
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async def get_current_term(
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conn: AUFEConnection = Depends(get_aufe_conn),
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) -> UniResponseModel[CurrentTermInfo] | JSONResponse:
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"""
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获取当前学期的详细信息
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✅ 功能特性：
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- 获取当前学期的开始和结束日期
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- 获取学期周数信息
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- 实时从教务系统获取
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💡 使用场景：
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- 显示当前学期进度
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- 课程表的周次显示参考
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- 学期时间提醒
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Returns:
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CurrentTermInfo: 包含学期代码、名称、开始日期、结束日期等
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"""
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try:
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info_response = await conn.client.get(
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JWCConfig().DEFAULT_BASE_URL, follow_redirects=True, timeout=conn.timeout
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)
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if info_response.status_code != 200:
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conn.logger.error(
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f"获取学期信息页面失败，状态码: {info_response.status_code}"
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)
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return ProtectRouterErrorToCode().remote_service_error.to_json_response(
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conn.logger.trace_id
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)
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start_response = await conn.client.get(
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JWCConfig().to_full_url(ENDPOINT["calendar"]),
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follow_redirects=True,
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timeout=conn.timeout,
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)
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if start_response.status_code != 200:
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conn.logger.error(
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f"获取学期开始时间失败，状态码: {start_response.status_code}"
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)
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return ProtectRouterErrorToCode().remote_service_error.to_json_response(
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conn.logger.trace_id
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)
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# 提取学期开始时间
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flexible_pattern = r'var\s+rq\s*=\s*"(\d{8})";\s*//.*'
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match = re.findall(flexible_pattern, start_response.text)
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if not match:
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conn.logger.error("未找到学期开始时间")
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return ProtectRouterErrorToCode().remote_service_error.to_json_response(
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conn.logger.trace_id
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)
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start_date_str = match[0]
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try:
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start_date = datetime.strptime(start_date_str, "%Y%m%d").date()
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except ValueError:
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conn.logger.error(f"学期开始时间格式错误: {start_date_str}")
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return ProtectRouterErrorToCode().remote_service_error.to_json_response(
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conn.logger.trace_id
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)
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start_date = datetime.strptime(start_date_str, "%Y%m%d").date()
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html_content = info_response.text
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# 使用BeautifulSoup解析HTML
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soup = BeautifulSoup(html_content, "html.parser")
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# 查找包含学期周数信息的元素
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# 使用CSS选择器查找
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calendar_element = soup.select_one(
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"#navbar-container > div.navbar-buttons.navbar-header.pull-right > ul > li.light-red > a"
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)
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if not calendar_element:
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# 如果CSS选择器失败，尝试其他方法
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# 查找包含"第X周"的元素
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potential_elements = soup.find_all("a", class_="dropdown-toggle")
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calendar_element = None
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for element in potential_elements:
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text = element.get_text(strip=True) if element else ""
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if "第" in text and "周" in text:
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calendar_element = element
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break
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# 如果还是找不到，尝试查找任何包含学期信息的元素
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if not calendar_element:
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all_elements = soup.find_all(text=re.compile(r"\d{4}-\d{4}.*第\d+周"))
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if all_elements:
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# 找到包含学期信息的文本，查找其父元素
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for text_node in all_elements:
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parent = text_node.parent
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if parent:
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calendar_element = parent
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break
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if not calendar_element:
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conn.logger.warning("未找到学期周数信息元素")
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# 尝试在整个页面中搜索学期信息模式
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semester_pattern = re.search(
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r"(\d{4}-\d{4})\s*(春|秋|夏)?\s*第(\d+)周\s*(星期[一二三四五六日天])?",
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html_content,
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)
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if semester_pattern:
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calendar_text = semester_pattern.group(0)
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conn.logger.info(f"通过正则表达式找到学期信息: {calendar_text}")
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else:
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conn.logger.debug(f"HTML内容长度: {len(html_content)}")
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conn.logger.debug(
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"未检测到学期周数相关内容，可能需要重新登录或检查访问权限"
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)
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return ProtectRouterErrorToCode().remote_service_error.to_json_response(
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conn.logger.trace_id
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)
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else:
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# 提取文本内容
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calendar_text = calendar_element.get_text(strip=True)
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conn.logger.info(f"找到学期周数信息: {calendar_text}")
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clean_text = re.sub(r"\s+", " ", calendar_text.strip())
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# 初始化默认值
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academic_year = ""
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term = ""
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week_number = 0
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is_end = False
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try:
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# 解析学年：2025-2026
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year_match = re.search(r"(\d{4}-\d{4})", clean_text)
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if year_match:
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academic_year = year_match.group(1)
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# 解析学期：秋、春
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semester_match = re.search(r"(春|秋)", clean_text)
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if semester_match:
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term = semester_match.group(1)
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# 解析周数：第1周、第15周等
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week_match = re.search(r"第(\d+)周", clean_text)
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if week_match:
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week_number = int(week_match.group(1))
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# 判断是否为学期结束（通常第16周以后或包含"结束"等关键词）
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if week_number >= 16 or "结束" in clean_text or "考试" in clean_text:
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is_end = True
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except Exception as e:
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conn.logger.warning(f"解析学期周数信息时出错: {str(e)}")
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return ProtectRouterErrorToCode().server_error.to_json_response(
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conn.logger.trace_id
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)
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result = CurrentTermInfo(
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academic_year=academic_year,
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current_term_name=term,
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week_number=week_number,
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start_at=start_date.strftime("%Y-%m-%d"),
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is_end=is_end,
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weekday=datetime.now().weekday(),
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)
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return UniResponseModel[CurrentTermInfo](
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success=True,
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data=result,
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message="获取当前学期信息成功",
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error=None,
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)
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except Exception as e:
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conn.logger.exception(e)
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return ProtectRouterErrorToCode().server_error.to_json_response(
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conn.logger.trace_id
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)
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