mirror of https://github.com/M66B/FairEmail.git
503 lines
24 KiB
Java
503 lines
24 KiB
Java
package eu.faircode.email;
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/*
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This file is part of FairEmail.
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FairEmail is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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FairEmail is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FairEmail. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2018-2024 by Marcel Bokhorst (M66B)
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*/
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import android.content.ContentResolver;
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import android.content.ContentUris;
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import android.content.ContentValues;
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import android.content.Context;
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import android.content.SharedPreferences;
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import android.database.Cursor;
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import android.net.Uri;
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import android.provider.CalendarContract;
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import android.text.TextUtils;
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import androidx.preference.PreferenceManager;
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import org.json.JSONObject;
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import java.io.BufferedInputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.nio.charset.StandardCharsets;
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import java.text.SimpleDateFormat;
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import java.util.Arrays;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.List;
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import java.util.TimeZone;
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import biweekly.ICalVersion;
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import biweekly.ICalendar;
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import biweekly.component.VAlarm;
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import biweekly.component.VEvent;
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import biweekly.io.ParseWarning;
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import biweekly.io.TimezoneAssignment;
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import biweekly.io.TimezoneInfo;
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import biweekly.io.WriteContext;
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import biweekly.io.scribe.property.RecurrenceRuleScribe;
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import biweekly.io.text.ICalReader;
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import biweekly.parameter.ParticipationStatus;
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import biweekly.property.Action;
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import biweekly.property.Attendee;
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import biweekly.property.ICalProperty;
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import biweekly.property.RawProperty;
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import biweekly.property.RecurrenceRule;
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import biweekly.property.Trigger;
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import biweekly.util.Duration;
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import biweekly.util.ICalDate;
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public class CalendarHelper {
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static boolean isWeekend(Context context, Calendar calendar) {
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return isWeekend(context, calendar.get(Calendar.DAY_OF_WEEK));
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}
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static boolean isWeekend(Context context, int aday) {
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SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
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String weekend = prefs.getString("weekend", Calendar.SATURDAY + "," + Calendar.SUNDAY);
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for (String day : weekend.split(","))
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if (!TextUtils.isEmpty(day) && aday == Integer.parseInt(day))
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return true;
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return false;
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}
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static String formatHour(Context context, int minutes) {
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Calendar cal = Calendar.getInstance();
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cal.set(Calendar.HOUR_OF_DAY, minutes / 60);
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cal.set(Calendar.MINUTE, minutes % 60);
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cal.set(Calendar.SECOND, 0);
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cal.set(Calendar.MILLISECOND, 0);
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return Helper.getTimeInstance(context, SimpleDateFormat.SHORT).format(cal.getTime());
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}
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static ICalendar parse(Context context, File file) throws IOException {
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try (InputStream is = new BufferedInputStream(new FileInputStream(file))) {
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// https://en.wikipedia.org/wiki/Byte_order_mark#UTF-8
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byte[] utf8_bom = "\uFEFF".getBytes(StandardCharsets.UTF_8);
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byte[] bom = new byte[utf8_bom.length];
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is.mark(bom.length);
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is.read(bom);
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if (!Arrays.equals(bom, utf8_bom))
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is.reset();
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try (ICalReader reader = new ICalReader(is)) {
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ICalendar icalendar = reader.readNext();
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for (ParseWarning warning : reader.getWarnings())
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EntityLog.log(context, "Event warning " + warning);
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// https://icalendar.org/validator.html
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if (icalendar == null)
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throw new IOException("Invalid iCal file");
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return icalendar;
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}
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}
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}
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static String getTimeZoneID(ICalendar icalendar, ICalProperty property) {
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TimezoneInfo tzinfo = icalendar.getTimezoneInfo();
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TimezoneAssignment tza = (tzinfo == null ? null : tzinfo.getTimezone(property));
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TimeZone tz = (tza == null ? null : tza.getTimeZone());
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String tzid = (tz == null ? null : tz.getID());
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if (tzid == null)
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tzid = TimeZone.getDefault().getID();
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return tzid;
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}
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static Uri getOnlineMeetingUrl(Context context, VEvent event) {
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try {
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RawProperty prop = event.getExperimentalProperty("X-GOOGLE-CONFERENCE");
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if (prop == null)
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prop = event.getExperimentalProperty("X-MICROSOFT-ONLINEMEETINGEXTERNALLINK");
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if (prop == null)
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prop = event.getExperimentalProperty("X-MICROSOFT-SKYPETEAMSMEETINGURL");
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if (prop == null)
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return null;
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String url = prop.getValue();
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if (TextUtils.isEmpty(url))
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return null;
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Uri uri = Uri.parse(url);
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return (uri.isHierarchical() ? uri : null);
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} catch (Throwable ex) {
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Log.e(ex);
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return null;
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}
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}
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static Long exists(Context context, String selectedAccount, String selectedName, String uid) {
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ContentResolver resolver = context.getContentResolver();
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try (Cursor cursor = resolver.query(CalendarContract.Events.CONTENT_URI,
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new String[]{CalendarContract.Events._ID},
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CalendarContract.Calendars.ACCOUNT_NAME + " = ?" +
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" AND " + (selectedName == null
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? "(" + CalendarContract.Calendars.CALENDAR_DISPLAY_NAME + " IS NULL" +
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" OR " + CalendarContract.Calendars.CALENDAR_DISPLAY_NAME + " = ''" +
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" OR " + CalendarContract.Calendars.CALENDAR_DISPLAY_NAME + " = ?)"
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: CalendarContract.Calendars.CALENDAR_DISPLAY_NAME + " = ?") +
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" AND " + CalendarContract.Events.UID_2445 + " = ?",
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selectedName == null
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? new String[]{selectedAccount, selectedAccount, uid}
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: new String[]{selectedAccount, selectedName, uid},
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null)) {
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if (cursor.moveToNext())
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return cursor.getLong(0);
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else
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return null;
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}
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}
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static Long insert(Context context, ICalendar icalendar, VEvent event, int status,
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EntityAccount account, EntityMessage message) {
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String selectedAccount;
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String selectedName;
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try {
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JSONObject jselected = new JSONObject(account.calendar);
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selectedAccount = jselected.getString("account");
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selectedName = jselected.optString("name", null);
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} catch (Throwable ex) {
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Log.i(ex);
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selectedAccount = account.calendar;
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selectedName = null;
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}
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return insert(context, icalendar, event, status, selectedAccount, selectedName, message);
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}
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static Long insert(Context context, ICalendar icalendar, VEvent event, int status,
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String selectedAccount, String selectedName, EntityMessage message) {
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Long existId = null;
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String uid = (event.getUid() == null ? null : event.getUid().getValue());
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if (!TextUtils.isEmpty(uid)) {
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existId = exists(context, selectedAccount, selectedName, uid);
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if (existId != null) {
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EntityLog.log(context, EntityLog.Type.General, message, "Event exists uid=" + uid + " id=" + existId);
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}
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}
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String organizer = (event.getOrganizer() == null ? null : event.getOrganizer().getEmail());
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String summary = (event.getSummary() == null ? null : event.getSummary().getValue());
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String description = (event.getDescription() == null ? null : event.getDescription().getValue());
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String location = (event.getLocation() == null ? null : event.getLocation().getValue());
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ICalDate start = (event.getDateStart() == null ? null : event.getDateStart().getValue());
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ICalDate end = (event.getDateEnd() == null ? null : event.getDateEnd().getValue());
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String tzstart = getTimeZoneID(icalendar, event.getDateStart());
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String tzend = getTimeZoneID(icalendar, event.getDateEnd());
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String rrule = null;
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RecurrenceRule recurrence = event.getRecurrenceRule();
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if (recurrence != null) {
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RecurrenceRuleScribe scribe = new RecurrenceRuleScribe();
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WriteContext wcontext = new WriteContext(ICalVersion.V2_0, icalendar.getTimezoneInfo(), null);
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rrule = scribe.writeText(recurrence, wcontext);
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}
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if (start == null || end == null) {
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EntityLog.log(context, EntityLog.Type.General, message,
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"Event start=" + start + " end=" + end);
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return null;
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}
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ContentResolver resolver = context.getContentResolver();
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try (Cursor cursor = resolver.query(CalendarContract.Calendars.CONTENT_URI,
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new String[]{CalendarContract.Calendars._ID},
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CalendarContract.Calendars.VISIBLE + " <> 0" +
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" AND " + CalendarContract.Calendars.ACCOUNT_NAME + " = ?" +
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" AND " + (selectedName == null
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? "(" + CalendarContract.Calendars.CALENDAR_DISPLAY_NAME + " IS NULL" +
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" OR " + CalendarContract.Calendars.CALENDAR_DISPLAY_NAME + " = ''" +
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" OR " + CalendarContract.Calendars.CALENDAR_DISPLAY_NAME + " = ?)"
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: CalendarContract.Calendars.CALENDAR_DISPLAY_NAME + " = ?"),
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selectedName == null
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? new String[]{selectedAccount, selectedAccount}
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: new String[]{selectedAccount, selectedName},
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null)) {
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if (cursor.getCount() == 0)
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EntityLog.log(context, EntityLog.Type.General, message,
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"Account not found account=" + selectedAccount + ":" + selectedName);
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if (cursor.moveToNext()) {
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// https://developer.android.com/guide/topics/providers/calendar-provider#add-event
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// https://developer.android.com/reference/android/provider/CalendarContract.EventsColumns
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long calId = cursor.getLong(0);
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ContentValues values = new ContentValues();
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values.put(CalendarContract.Events.CALENDAR_ID, calId);
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if (!TextUtils.isEmpty(uid))
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values.put(CalendarContract.Events.UID_2445, uid);
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if (!TextUtils.isEmpty(organizer))
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values.put(CalendarContract.Events.ORGANIZER, organizer);
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values.put(CalendarContract.Events.DTSTART, start.getTime());
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values.put(CalendarContract.Events.DTEND, end.getTime());
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values.put(CalendarContract.Events.EVENT_TIMEZONE, "UTC");
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values.put(CalendarContract.Events.EVENT_END_TIMEZONE, "UTC");
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if (rrule != null)
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values.put(CalendarContract.Events.RRULE, rrule);
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if (!TextUtils.isEmpty(summary))
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values.put(CalendarContract.Events.TITLE, summary);
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if (!TextUtils.isEmpty(description))
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values.put(CalendarContract.Events.DESCRIPTION, description);
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if (!TextUtils.isEmpty(location))
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values.put(CalendarContract.Events.EVENT_LOCATION, location);
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values.put(CalendarContract.Events.STATUS, status);
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long eventId;
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if (existId == null) {
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Uri uri = resolver.insert(CalendarContract.Events.CONTENT_URI, values);
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eventId = Long.parseLong(uri.getLastPathSegment());
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EntityLog.log(context, EntityLog.Type.General, message, "Inserted event" +
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" id=" + calId + ":" + eventId +
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" uid=" + uid +
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" organizer=" + organizer +
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" start=" + new Date(start.getTime()) + "/" + tzstart +
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" end=" + new Date(end.getTime()) + "/" + tzend +
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" rrule=" + rrule +
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" summary=" + summary +
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" location=" + location +
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" status=" + status);
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} else {
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Uri uri = ContentUris.withAppendedId(CalendarContract.Events.CONTENT_URI, existId);
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int rows = resolver.update(uri, values, null, null);
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EntityLog.log(context, EntityLog.Type.General, message, "Updated event" +
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" id=" + calId + ":" + existId +
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" uid=" + uid +
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" organizer=" + organizer +
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" start=" + new Date(start.getTime()) + "/" + tzstart +
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" end=" + new Date(end.getTime()) + "/" + tzend +
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" rrule=" + rrule +
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" summary=" + summary +
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" location=" + location +
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" status=" + status +
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" rows=" + rows);
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rows = resolver.delete(CalendarContract.Attendees.CONTENT_URI,
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CalendarContract.Attendees.EVENT_ID + " = ?",
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new String[]{Long.toString(existId)});
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EntityLog.log(context, EntityLog.Type.General, message, "Deleted event attendees for update" +
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" id=" + calId + ":" + existId +
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" rows=" + rows);
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rows = resolver.delete(CalendarContract.Reminders.CONTENT_URI,
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CalendarContract.Reminders.EVENT_ID + " = ?",
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new String[]{Long.toString(existId)});
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EntityLog.log(context, EntityLog.Type.General, message, "Deleted event reminders for update" +
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" id=" + calId + ":" + existId +
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" rows=" + rows);
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eventId = existId;
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}
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for (Attendee a : event.getAttendees())
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try {
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String email = a.getEmail();
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String name = a.getCommonName();
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String role = (a.getRole() == null ? null : a.getRole().getValue());
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String level = (a.getParticipationLevel() == null ? null
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: a.getParticipationLevel().getValue(icalendar.getVersion()));
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String pstatus = (a.getParticipationStatus() == null ? null : a.getParticipationStatus().getValue());
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ContentValues avalues = new ContentValues();
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if (!TextUtils.isEmpty(email))
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avalues.put(CalendarContract.Attendees.ATTENDEE_EMAIL, email);
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if (!TextUtils.isEmpty(name))
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avalues.put(CalendarContract.Attendees.ATTENDEE_NAME, name);
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if ("ORGANIZER".equals(role))
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avalues.put(CalendarContract.Attendees.ATTENDEE_RELATIONSHIP, CalendarContract.Attendees.RELATIONSHIP_ORGANIZER);
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else if ("ATTENDEE".equals(role))
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avalues.put(CalendarContract.Attendees.ATTENDEE_RELATIONSHIP, CalendarContract.Attendees.RELATIONSHIP_ATTENDEE);
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if ("REQUIRE".equals(level) || "REQ-PARTICIPANT".equals(level))
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avalues.put(CalendarContract.Attendees.ATTENDEE_TYPE, CalendarContract.Attendees.TYPE_REQUIRED);
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else if ("REQUEST".equals(level) || "OPT-PARTICIPANT".equals(level))
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avalues.put(CalendarContract.Attendees.ATTENDEE_TYPE, CalendarContract.Attendees.TYPE_OPTIONAL);
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if ("ACCEPTED".equals(pstatus) || "CONFIRMED".equals(pstatus))
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avalues.put(CalendarContract.Attendees.ATTENDEE_STATUS, CalendarContract.Attendees.ATTENDEE_STATUS_ACCEPTED);
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else if ("DECLINED".equals(pstatus))
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avalues.put(CalendarContract.Attendees.ATTENDEE_STATUS, CalendarContract.Attendees.ATTENDEE_STATUS_DECLINED);
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else if ("TENTATIVE".equals(pstatus))
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avalues.put(CalendarContract.Attendees.ATTENDEE_STATUS, CalendarContract.Attendees.ATTENDEE_STATUS_TENTATIVE);
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else if ("NEEDS-ACTION".equals(pstatus))
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avalues.put(CalendarContract.Attendees.ATTENDEE_STATUS, CalendarContract.Attendees.ATTENDEE_STATUS_NONE);
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avalues.put(CalendarContract.Attendees.EVENT_ID, eventId);
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Uri auri = resolver.insert(CalendarContract.Attendees.CONTENT_URI, avalues);
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long attendeeId = Long.parseLong(auri.getLastPathSegment());
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EntityLog.log(context, EntityLog.Type.General, message, "Inserted event attendee" +
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" id=" + eventId + ":" + attendeeId +
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" email=" + email +
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" name=" + name +
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" role=" + role +
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" level=" + level +
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" status=" + pstatus);
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} catch (Throwable ex) {
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Log.e(ex);
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}
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if (status == CalendarContract.Events.STATUS_CONFIRMED) {
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for (VAlarm valarm : event.getAlarms())
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try {
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// BEGIN:VALARM
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// ACTION:DISPLAY
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// DESCRIPTION:This is an event reminder
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// TRIGGER:-P0DT0H30M0S
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// END:VALARM
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Action action = valarm.getAction();
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Trigger trigger = valarm.getTrigger();
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EntityLog.log(context, EntityLog.Type.General, message, "Event reminder" +
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" action=" + (action == null ? null : action.getValue()) +
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" related=" + (trigger == null ? null : trigger.getRelated()) +
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" duration=" + (trigger == null ? null : trigger.getDuration()));
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if (action != null && trigger != null &&
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Action.DISPLAY.equals(action.getValue()) &&
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trigger.getRelated() == null && trigger.getDuration() != null) {
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Duration duration = trigger.getDuration();
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Integer w = duration.getWeeks();
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Integer d = duration.getDays();
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Integer h = duration.getHours();
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Integer m = duration.getMinutes();
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int minutes = (w == null ? 0 : w * 7 * 24 * 60) +
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(d == null ? 0 : d * 24 * 60) +
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(h == null ? 0 : h * 60) +
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(m == null ? 0 : m);
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ContentValues cv = new ContentValues();
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cv.put(CalendarContract.Reminders.EVENT_ID, eventId);
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cv.put(CalendarContract.Reminders.METHOD, CalendarContract.Reminders.METHOD_ALERT);
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cv.put(CalendarContract.Reminders.MINUTES, minutes);
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Uri reminder = resolver.insert(CalendarContract.Reminders.CONTENT_URI, cv);
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EntityLog.log(context, EntityLog.Type.General, message, "Inserted event reminder" +
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" w=" + w + " d=" + d + " h=" + h + " m=" + m +
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" uri=" + reminder);
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}
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} catch (Throwable ex) {
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Log.e(ex);
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}
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}
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return eventId;
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}
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}
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return null;
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}
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static void update(Context context, VEvent event, EntityMessage message) {
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String uid = (event.getUid() == null ? null : event.getUid().getValue());
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if (TextUtils.isEmpty(uid)) {
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EntityLog.log(context, EntityLog.Type.General, message,
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"Update event: no uid");
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return;
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}
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List<Attendee> attendees = event.getAttendees();
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if (attendees == null || attendees.size() == 0) {
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EntityLog.log(context, EntityLog.Type.General, message,
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"Update event: no attendees");
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return;
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}
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ParticipationStatus status = attendees.get(0).getParticipationStatus();
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if (!ParticipationStatus.ACCEPTED.equals(status) &&
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!ParticipationStatus.DECLINED.equals(status)) {
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EntityLog.log(context, EntityLog.Type.General, message,
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"Update event: not accepted/declined");
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return;
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}
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ContentResolver resolver = context.getContentResolver();
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try (Cursor cursor = resolver.query(CalendarContract.Events.CONTENT_URI,
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new String[]{CalendarContract.Events._ID},
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CalendarContract.Events.UID_2445 + " = ?",
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new String[]{uid},
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null)) {
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if (cursor.getCount() == 0)
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EntityLog.log(context, EntityLog.Type.General, message,
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"Update event: uid not found");
|
|
while (cursor.moveToNext()) {
|
|
long eventId = cursor.getLong(0);
|
|
|
|
// https://developer.android.com/guide/topics/providers/calendar-provider#modify-calendar
|
|
Uri updateUri = ContentUris.withAppendedId(CalendarContract.Events.CONTENT_URI, eventId);
|
|
ContentValues values = new ContentValues();
|
|
if (ParticipationStatus.ACCEPTED.equals(status))
|
|
values.put(CalendarContract.Events.STATUS, CalendarContract.Events.STATUS_CONFIRMED);
|
|
else
|
|
values.put(CalendarContract.Events.STATUS, CalendarContract.Events.STATUS_CANCELED);
|
|
int rows = resolver.update(updateUri, values, null, null);
|
|
|
|
int arows = 0;
|
|
String email = attendees.get(0).getEmail();
|
|
if (!TextUtils.isEmpty(email)) {
|
|
ContentValues avalues = new ContentValues();
|
|
avalues.put(CalendarContract.Attendees.ATTENDEE_STATUS, CalendarContract.Attendees.ATTENDEE_STATUS_ACCEPTED);
|
|
|
|
arows = resolver.update(
|
|
CalendarContract.Attendees.CONTENT_URI,
|
|
avalues,
|
|
CalendarContract.Attendees.EVENT_ID + " =? AND " + CalendarContract.Attendees.ATTENDEE_EMAIL + " =?",
|
|
new String[]{Long.toString(eventId), email});
|
|
}
|
|
|
|
EntityLog.log(context, EntityLog.Type.General, message,
|
|
"Updated event id=" + eventId + " uid=" + uid + " email=" + email +
|
|
" rows=" + rows + "/" + arows);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void delete(Context context, VEvent event, EntityMessage message) {
|
|
String uid = (event.getUid() == null ? null : event.getUid().getValue());
|
|
if (TextUtils.isEmpty(uid))
|
|
return;
|
|
|
|
ContentResolver resolver = context.getContentResolver();
|
|
try (Cursor cursor = resolver.query(CalendarContract.Events.CONTENT_URI,
|
|
new String[]{CalendarContract.Events._ID},
|
|
CalendarContract.Events.UID_2445 + " = ? ",
|
|
new String[]{uid},
|
|
null)) {
|
|
while (cursor.moveToNext()) {
|
|
long eventId = cursor.getLong(0);
|
|
|
|
// https://developer.android.com/guide/topics/providers/calendar-provider#delete-event
|
|
Uri deleteUri = ContentUris.withAppendedId(CalendarContract.Events.CONTENT_URI, eventId);
|
|
int rows = resolver.delete(deleteUri, null, null);
|
|
EntityLog.log(context, EntityLog.Type.General, message,
|
|
"Deleted event id=" + eventId + " uid=" + uid + " rows=" + rows);
|
|
}
|
|
}
|
|
}
|
|
}
|