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generateICS.py
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generateICS.py
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#!/usr/bin/env python3
# -*- coding:utf-8 -*-
"""
generateICS 生成及导出.ics日历文件
@Author: MiaoTony, Triple-Z(原作者)
"""
# from __future__ import print_function
# from __future__ import unicode_literals
from icalendar import Calendar, Event
from datetime import datetime, timedelta
from pytz import timezone
# import tempfile
from hashlib import md5
import os
# from sys import getsizeof
def create_ics(lessons, semester_start_date):
"""
生成课表的ical
:param lessons: {list} Lesson类组成的列表
:param semester_start_date: {datatime}学期开始日期
:return: cal {Calendar}
"""
cal = Calendar()
cal.add('prodid', '-//miaotony//NUAA_ClassSchedule//CN')
cal.add('version', '2.0')
cal.add('X-WR-TIMEZONE', 'Asia/Shanghai')
for lesson in lessons:
for week in lesson.vaildWeeks:
event = Event()
event.add('summary', lesson.courseName)
# Lesson start time
# fix bug: 匹配天目湖校区时间表
# 潜在bug: roomName为空的情况默认为将军路明故宫的时间表
if '天目湖' in lesson.roomName:
lesson_start_hour = {
'1': 8,
'3': 10,
'5': 14,
'7': 16,
'9': 18,
'11': 20,
}.get(lesson.course_unit[0])
lesson_start_minute = {
'1': 30,
'3': 30,
'5': 0,
'7': 0,
'9': 45,
'11': 35,
}.get(lesson.course_unit[0])
else:
lesson_start_hour = {
'1': 8,
'3': 10,
'5': 14,
'7': 16,
'9': 18,
'11': 20,
}.get(lesson.course_unit[0])
lesson_start_minute = {
'1': 0,
'3': 15,
'5': 0,
'7': 15,
'9': 45,
'11': 35,
}.get(lesson.course_unit[0])
lesson_start_time = semester_start_date + \
timedelta(weeks=week - 1, days=int(lesson.day_of_week) - 1,
hours=lesson_start_hour - semester_start_date.hour,
minutes=lesson_start_minute - semester_start_date.minute,
seconds=-semester_start_date.second,
milliseconds=-semester_start_date.microsecond)
lesson_end_time = lesson_start_time + timedelta(
minutes=50 * len(lesson.course_unit) + 5 * (len(lesson.course_unit) - 1))
# fix隐含bug:课程时间仅一节或超过两节(非连续两节课)的情况
event.add('dtstart', lesson_start_time)
event.add('dtend', lesson_end_time)
# event.add('dtstamp', datetime.now(tz=timezone('Asia/Shanghai')))
event.add('location', lesson.roomName)
try:
event.add('description', lesson.output_description(week=week))
except UnicodeDecodeError:
print("ERROR!")
exit(6) # 放弃python2.x了
cal.add_component(event)
return cal
def create_exam_ics(cal, exams):
"""
生成考试安排的iCal
:param cal: 加入了课表后的cal
:param exams: {list}考试安排Exam类组成的列表
:return: cal {Calendar}
"""
for exam in exams:
if isinstance(exam.examDate, list): # 如果时间未确定, 不导出
event = Event()
event.add('summary', exam.courseName + '_' + exam.examType)
# exam start time
examStartTime = datetime(exam.examDate[0], exam.examDate[1], exam.examDate[2], exam.examTime[0],
exam.examTime[1], 0,
tzinfo=timezone('Asia/Shanghai')) # examTime[0]、examTime[1] 起始时间
examEndTime = datetime(exam.examDate[0], exam.examDate[1], exam.examDate[2], exam.examTime[2],
exam.examTime[3], 0,
tzinfo=timezone('Asia/Shanghai')) # examTime[2]、examTime[3] 终止时间
event.add('dtstart', examStartTime)
event.add('dtend', examEndTime)
event.add('location', exam.examLocation)
event.add('description', exam.description)
cal.add_component(event)
return cal
def export_ics(cal, semester_year, semester, stuID):
filename = 'NUAAiCal-Data/NUAA-curriculum-' + semester_year + '-' + semester + '-' + stuID + '.ics'
if os.path.exists('NUAAiCal-Data'):
# print('Directory exists.')
if os.path.isfile(filename):
# File exists, check whether need to be updated.
tem = open('.temp', 'w+b')
tem_path = os.path.abspath(tem.name)
tem.write(cal.to_ical())
tem_filename = tem.name
tem.read() # fix a py2.7 bug... issue#2
tem.close()
# print(getsizeof(tem.read()))
is_update = not is_same(tem_path, filename)
# print("Temp file name is %s, in %s" % (tem_filename, os.path.abspath(tem_filename)))
os.remove(tem_path)
if is_update:
print('有更新的信息!')
f = open(os.path.join(filename), 'wb')
f.write(cal.to_ical())
f.close()
print("更新的日历文件已导出到 \"" + os.path.abspath(filename) + "\"。")
else:
print('没有需要更新的信息!')
print("原有的日历文件位置为 \"" + os.path.abspath(filename) + "\"。")
else:
f = open(os.path.join(filename), 'wb')
f.write(cal.to_ical())
f.close()
print("日历文件已导出到 \"" + os.path.abspath(filename) + "\"。")
else:
os.mkdir('NUAAiCal-Data')
f = open(os.path.join(filename), 'wb')
f.write(cal.to_ical())
f.close()
# print('ICS file has successfully exported to \"' + filename + '\".')
print("日历文件已导出到 \"" + os.path.abspath(filename) + "\"。")
return True
def is_same(file1, file2):
hash1 = md5()
with open(file1, 'rb') as f1:
f1_data = f1.read()
# print(getsizeof(f1_data))
hash1.update(f1_data)
md5_1 = hash1.hexdigest()
# print(f1_data)
# print(file1.name)
# print(md5_1)
hash2 = md5()
with open(file2, 'rb') as f2:
f2_data = f2.read()
# print(getsizeof(f2_data))
hash2.update(f2_data)
md5_2 = hash2.hexdigest()
# print(f2_data)
# print(f2.name)
# print(md5_2)
# print(f1_data == f2_data)
if md5_1 == md5_2:
return True
else:
return False