init
This commit is contained in:
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c9d77c745e
18
Dockerfile
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18
Dockerfile
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FROM python:3
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WORKDIR /
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COPY requirements.txt ./
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RUN pip install --no-cache-dir -r requirements.txt
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COPY . .
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EXPOSE 80
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CMD ["python3", "webserver.py"]
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ENV AM_I_IN_A_DOCKER_CONTAINER Yes
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RUN date >/build-date.txt
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189
calendar_fetcher.py
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189
calendar_fetcher.py
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#!/usr/bin/env python3
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import time
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import datetime
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import json
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from pytz import UTC # timezone
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import caldav
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import caldav.elements.ical # for calendarColor
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import icalendar
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import requests
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import config as cfg
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from collections import OrderedDict
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from operator import getitem
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import pprint as pp
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def fetch_calendar():
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numberOfDaysToShow = 5
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excludedCalendars = ['todo', 'todogemeinsam', 'contact_birthdays', 'geburtstage', 'infos']
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#excludedCalendars = ['todo', 'todogemeinsam', 'contact_birthdays', 'geburtstage', 'gemeinsam', 'evtermine_shared_by_anita', 'jael']
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#excludedCalendars = ['gemeinsam', 'contact_birthdays', 'geburtstage']
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client = caldav.DAVClient(url=cfg.url, username=cfg.userN, password=cfg.passW)
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principal = client.principal()
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calendars = principal.calendars()
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firstDay = datetime.date.today()
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lastDay = firstDay + datetime.timedelta(days=numberOfDaysToShow)
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#print("Showing all events between %s and %s" % (firstDay, lastDay))
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days = []
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day = firstDay
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while day < lastDay:
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days.append(day)
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day += datetime.timedelta(days=1)
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#print("Days to list: %s" % days)
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# Get offset from local time to UTC, see also https://stackoverflow.com/questions/3168096/getting-computers-utc-offset-in-python
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# TODO: This should be done for every event individually!
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ts = time.time()
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utcOffset = (datetime.datetime.fromtimestamp(ts) -
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datetime.datetime.utcfromtimestamp(ts)).total_seconds()
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utcOffset = int(utcOffset / 3600) # in hours
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#print("UTC offset:", utcOffset)
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#print("All calendars:")
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#for calendar in calendars:
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#print(" %s" % str(calendar).split("/")[-2])
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calendarsFiltered = []
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# exclude some calendars:
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for calendar in calendars:
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#print(excludedCalendars)
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#print(calendar)
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#if str(calendar).split("/")[-2] in excludedCalendars:
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if str(calendar) in excludedCalendars:
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#print("Ignoring %s" % str(calendar).split("/")[-2])
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continue
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else:
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#print("Adding %s" % str(calendar).split("/")[-2])
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calendarsFiltered.append(calendar)
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#print("Filtered calendars:")
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#for calendar in calendarsFiltered:
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#print(" %s" % str(calendar).split("/")[-2])
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eventsList = {}
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metaData = {}
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for day in days:
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eventsList[day] = {}
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#print("processing calendars")
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for calendar in calendarsFiltered:
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#calendarName = str(calendar).split("/")[-2]
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calendarName = str(calendar)
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metaData[calendarName] = {}
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metaData[calendarName]['displayname'] = list(calendar.get_properties([caldav.dav.DisplayName()]).values())[0]
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metaData[calendarName]['color'] = list(calendar.get_properties([caldav.elements.ical.CalendarColor()]).values())[0]
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#print(metaData)
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for day in days:
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#print(" Looking for events between %s and %s" % (day, day + datetime.timedelta(days=1)))
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results = calendar.date_search(day, day + datetime.timedelta(days=1)) # get event for selected day (24h)
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for eventraw in results:
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eventUuid = str(eventraw).split("/")[-1].split(".")[0]
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#print(" - %s" % eventUuid)
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#print(str(eventraw))
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#event = icalendar.Calendar.from_ical(eventraw._data)
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url = "https://" + cfg.userN + ":" + cfg.passW + "@" + str(eventraw).replace("Event: https://", "")
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#print(url)
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data = requests.get(url).text
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event = icalendar.Calendar.from_ical(data)
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for component in event.walk():
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if component.name == "VEVENT":
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eventsList[day][eventUuid] = {}
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##eventsList[day][eventUuid]["calendar"] = str(calendar).split("/")[-2]
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eventsList[day][eventUuid]["calendar"] = str(calendar)
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#print(" summary: %s" % component.get('summary'))
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eventsList[day][eventUuid]["summary"] = str(component.get('summary'))
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#print(" description: %s" % component.get('description'))
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#eventsList[day][eventUuid]["description"] = str(component.get('description'))
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startDate = component.get('dtstart')
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#print(" dtstart: %s (%s)" % (startDate.dt.strftime('%m/%d/%Y %H:%M'), day))
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if startDate.dt.strftime('%m/%d/%Y') == day.strftime('%m/%d/%Y'): # event starts today
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#print(" single day event")
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eventsList[day][eventUuid]["startDate"] = startDate.dt.strftime('%m/%d/%Y')
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eventsList[day][eventUuid]["startTime"] = (startDate.dt + datetime.timedelta(hours=utcOffset)).strftime('%H:%M')
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else: # event started before today, set startdate to day and start time to midnight (for multi day events with start/end time)
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#print(" multi day event")
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eventsList[day][eventUuid]["startDate"] = day.strftime('%m/%d/%Y')
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eventsList[day][eventUuid]["startTime"] = "00:00"
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try:
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endDate = component.get('dtend')
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#print(" dtend: %s" % endDate.dt.strftime('%m/%d/%Y %H:%M'))
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if endDate.dt.strftime('%m/%d/%Y') == day.strftime('%m/%d/%Y'): # event ends today
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eventsList[day][eventUuid]["endDate"] = endDate.dt.strftime('%m/%d/%Y')
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eventsList[day][eventUuid]["endTime"] = (endDate.dt + datetime.timedelta(hours=utcOffset)).strftime('%H:%M')
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else: # event ends after today, set enddate to day and end time to midnight (for multi day events with start/end time)
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eventsList[day][eventUuid]["endDate"] = day.strftime('%m/%d/%Y')
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eventsList[day][eventUuid]["endTime"] = "24:00"
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except AttributeError as ae: # event has no endtime, use duration
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#print(" %s" % ae)
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duration = component.get('duration')
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#print(" Event misses end time, using duration")
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#print(" duration: %s" % duration.dt)
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if (startDate.dt + duration.dt).strftime('%m/%d/%Y') == day.strftime('%m/%d/%Y'): # event ends today
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eventsList[day][eventUuid]["endDate"] = (startDate.dt + duration.dt).strftime('%m/%d/%Y')
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eventsList[day][eventUuid]["endTime"] = (startDate.dt + duration.dt + datetime.timedelta(hours=utcOffset)).strftime('%H:%M')
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else: # event ends after today, set enddate to day and end time to midnight (for multi day events with start/end time)
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eventsList[day][eventUuid]["endDate"] = day.strftime('%m/%d/%Y')
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eventsList[day][eventUuid]["endTime"] = "24:00"
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#print('')
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#break
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# order by time per day, see https://www.geeksforgeeks.org/python-sort-nested-dictionary-by-key/
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for day in days:
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sortedbyTimePerDay = OrderedDict(sorted(eventsList[day].items(), key = lambda x: getitem(x[1], 'startTime')))
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eventsList[day] = sortedbyTimePerDay
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# Sort days
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eventsList = OrderedDict(sorted(eventsList.items()))
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# reformat day key (datetime => string)
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for day in days:
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eventsList[day.strftime('%m/%d/%Y')] = eventsList.pop(day)
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#pp.pprint(eventsList)
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data = {}
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data['metadata'] = metaData
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data['events'] = OrderedDict(eventsList)
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#pp.pprint(data)
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# Converting to JSON
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dataJson = json.dumps(data, indent=4)
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return dataJson
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if __name__ == '__main__':
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print(fetch_calendar())
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6
config.py
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6
config.py
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#!/usr/bin/env python
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# Configuration for the CalDAV server
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url = "https://cloud.ruinelli.ch/remote.php/dav/principals/users/"
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userN = "gruinelli"
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passW = "attgigoc1"
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19
readme.md
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19
readme.md
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# Docker
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## Build it manually
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`docker build -t calendar-fetcher .`
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## Run it in a Docker Container
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1. Adjust the parameters in `Dockerfile`
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1. Build the docker image with `docker build -t calendar-fetcher .`
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1. Run it with `docker run -it --rm -v /volume1/web/calendar-fetcher:/data --name my-calendar-fetcher -p 8014:8014 --label=com.centurylinklabs.watchtower.enable=false calendar-fetcher`
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1. Call it in a webbrowser: `http://localhost:8014`
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## replace existing Docker Container (Update)
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```
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docker build -t calendar-fetcher .
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docker stop calendar-fetcher
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docker rm calendar-fetcher
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docker run -d -P --name calendar-fetcher -p 8014:8014 -v /volume1/web/smartmirror/data:/data --label=com.centurylinklabs.watchtower.enable=false calendar-fetcher
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```
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2
requirements.txt
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2
requirements.txt
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pytz
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caldav
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70
webserver.py
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70
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#!/usr/bin/python
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from http.server import BaseHTTPRequestHandler, HTTPServer
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from urllib.parse import urlparse, parse_qs
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from calendar_fetcher import fetch_calendar
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internalPort = 8014
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outfile = "data/calendar.json"
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# This class will handle any incoming request from
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# a browser
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class myHandler(BaseHTTPRequestHandler):
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# Handler for the GET requests
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def do_GET(self):
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self.send_response(200)
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parsed_url = urlparse(self.path)
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query = parse_qs(parsed_url.query)
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print("File: %s, query: %s" % (parsed_url.path, query), flush=True)
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if parsed_url.path == "/":
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self.send_header('Content-type','text/html')
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self.send_header('Access-Control-Allow-Origin', '*')
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self.end_headers()
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self.wfile.write(b"<h1>Calendar Fetcher</h1>\n")
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self.wfile.write(b"fetching...<br>\n")
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print("fetching...")
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self.wfile.flush()
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data = fetch_calendar()
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self.wfile.write(b"storing...<br>\n")
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print("storing...")
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self.wfile.flush()
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f = open(outfile, "w")
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f.write(data)
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f.close()
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self.wfile.write(b"Done.\nData got written to %s}<br>\n" % bytes(outfile, "utf8"))
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print("Done.\nData got written to %s}" % outfile)
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self.wfile.flush()
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if __name__ == '__main__':
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# Run the service
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try:
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print("Starting...")
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server = HTTPServer(('', internalPort), myHandler)
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print("Listening on port %d" % internalPort)
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print("Ready to receive requests")
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# Wait forever for incoming http requests
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server.serve_forever()
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except KeyboardInterrupt:
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print ('^C received, shutting down the web server')
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server.socket.close()
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