WebUntis JavaAPI Wrap

gistfile1.txt

	public UntisAuthentication authenticate(String school, String user, String password) {
		try {
			JSONObject request = new JSONObject();
			request.put("method", "authenticate");

			JSONObject params = new JSONObject();
			params.put("user", user);
			params.put("password", password);
			params.put("client", "SchoolGuard/Beta");

			request.put("params", params);

			JSONObject data = postUntisRequest(request, new UntisAuthentication(school, null, null));
			JSONObject result = data.getJSONObject("result");
			return new UntisAuthentication(school, "" + result.getInt("personId"), result.getString("sessionId"));
		} catch (Exception ex) {
			return null;
		}
	}

	public JSONObject postUntisRequest(JSONObject requestBody, UntisAuthentication auth) {
		try {
			requestBody.put("id", "req_3");
			requestBody.put("jsonrpc", "2.0");

			MediaType JSON = MediaType.parse("application/json; charset=utf-8");
			RequestBody body = RequestBody.create(JSON, requestBody.toString());

			OkHttpClient client = new OkHttpClient();

			okhttp3.Request.Builder request = new Request.Builder()
//					.header("Content-Type", "application/json")
					.header("User-Agent", "SchoolGuard/Beta")
					.post(body)
					.url("https://kephiso.webuntis.com/WebUntis/jsonrpc.do?school="
							+ URLEncoder.encode(auth.school, StandardCharsets.UTF_8));

			if (auth.key != null) {
				request.header("JSESSIONID", auth.key.trim());
				request.header("Cookie", "JSESSIONID=" + auth.key.trim());
			}
			Response response = client.newCall(request.build()).execute();
			String strBody = response.body().string();
			JSONObject resp = new JSONObject(strBody);
			return resp;
		} catch (Exception ex) {
			ex.printStackTrace();
		}
		return null;
	}

	public class UntisAuthentication {

		String school;
		String classRoom;
		String key;

		public UntisAuthentication(String school, String classRoom, String key) {
			this.school = school;
			this.classRoom = classRoom;
			this.key = key;
		}

		public String getClassRoom() {
			return classRoom;
		}

		public String getKey() {
			return key;
		}

		public String getSchool() {
			return school;
		}

	}

	@SuppressWarnings("deprecation")
	public List<SchoolLesson> loadTimeTable(UntisAuthentication auth) {
		List<SchoolLesson> resultLessons = new ArrayList<SchoolLesson>();

		Date today = new Date();
		LocalDate localDate = today.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
		String todayString = formatNumber(localDate.getYear()) + formatNumber(localDate.getMonthValue())
				+ formatNumber(localDate.getDayOfMonth());
//		String todayString = "20210222";

		JSONObject request = new JSONObject(
				"{\"id\": \"req_3\", \"method\": \"getTimetable\", \"params\": {\"options\":\r\n" + " {\r\n"
						+ " \"startDate\":" + todayString + ",\r\n" + " \"endDate\":" + todayString + ",\r\n"
						+ " \"element\": {\"id\": 218, \"type\": 1, \"keyType\": \"id\"},\r\n"
						+ " \"showStudentgroup\": true,\r\n" + " \"showLsText\": true,\r\n"
						+ " \"showLsNumber\": true,\r\n" + " \"showInfo\": true,\r\n"
						+ " \"subjectFields\": [\"name\",\"longname\"]\r\n" + " }\r\n" + "}, \"jsonrpc\": \"2.0\"}");
		JSONObject data = postUntisRequest(request, auth);

		JSONArray lessons = data.getJSONArray("result");
		for (int i = 0; i < lessons.length(); i++) {
			JSONObject json = lessons.getJSONObject(i);
			JSONObject jsonLesson = (JSONObject) json;
			String date = "" + jsonLesson.getInt("date");
			int year = Integer.parseInt(date.substring(0, 4));
			int month = Integer.parseInt(date.substring(4, 6));
			int day = Integer.parseInt(date.substring(6, 8));
			String start = formatTime(jsonLesson.getInt("startTime"));
			int startHour = Integer.parseInt(start.substring(0, 2));
			int startMinute = Integer.parseInt(start.substring(2, 4));
			String end = formatTime(jsonLesson.getInt("endTime"));
			int endHour = Integer.parseInt(end.substring(0, 2));
			int endMinute = Integer.parseInt(end.substring(2, 4));

			Date startDate = new Date(year, month, day, startHour, startMinute);
			Date endDate = new Date(year, month, day, endHour, endMinute);
			resultLessons.add(new SchoolLesson(startDate, endDate, "",
					jsonLesson.getJSONArray("su").getJSONObject(0).getString("longname")));
		}

		Collections.sort(resultLessons, new Comparator<SchoolLesson>() {

			@Override
			public int compare(SchoolLesson l1, SchoolLesson l2) {
				int start1 = Integer.parseInt("" + l1.getStart().getHours() + l1.getStart().getMinutes());
				int start2 = Integer.parseInt("" + l2.getStart().getHours() + l2.getStart().getMinutes());
				if (start1 < start2)
					return -1;
				else
					return 1;
			}

		});

		return resultLessons;
	}

	public static String formatTime(int time) {
		String format = "" + time;
		if (format.length() <= 3) {
			format = "0" + time;
		}
		return format;
	}

	public static String formatNumber(int number) {
		String format = "" + number;
		if (format.length() <= 1) {
			format = "0" + format;
		}
		return format;
	}