etesync-android/app/src/main/java/at/bitfire/davdroid/AccountSettings.java

/*
 * Copyright © 2013 – 2015 Ricki Hirner (bitfire web engineering).
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 */
package at.bitfire.davdroid;

import android.accounts.Account;
import android.accounts.AccountManager;
import android.app.Notification;
import android.app.NotificationManager;
import android.content.ContentProviderClient;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.content.PeriodicSync;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.net.Uri;
import android.os.Bundle;
import android.provider.CalendarContract;
import android.provider.CalendarContract.Calendars;
import android.provider.ContactsContract;
import android.support.annotation.NonNull;
import android.support.v7.app.NotificationCompat;
import android.text.TextUtils;

import java.lang.reflect.Method;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.logging.Level;

import at.bitfire.davdroid.model.ServiceDB;
import at.bitfire.davdroid.model.ServiceDB.*;
import at.bitfire.davdroid.resource.LocalAddressBook;
import at.bitfire.davdroid.resource.LocalCalendar;
import at.bitfire.davdroid.resource.LocalTaskList;
import at.bitfire.ical4android.CalendarStorageException;
import at.bitfire.ical4android.TaskProvider;
import at.bitfire.vcard4android.ContactsStorageException;
import lombok.Cleanup;
import okhttp3.HttpUrl;

public class AccountSettings {
	private final static int CURRENT_VERSION = 3;
	private final static String
		KEY_SETTINGS_VERSION = "version",

        KEY_USERNAME = "user_name",
		KEY_AUTH_PREEMPTIVE = "auth_preemptive";

    /** Time range limitation to the past [in days]
        value = null              default value (DEFAULT_TIME_RANGE_PAST_DAYS)
                < 0 (-1)          no limit
                >= 0              entries more than n days in the past won't be synchronized
     */
    private final static String KEY_TIME_RANGE_PAST_DAYS = "time_range_past_days";
    private final static int DEFAULT_TIME_RANGE_PAST_DAYS = 90;

	public final static long SYNC_INTERVAL_MANUALLY = -1;

	final Context context;
	final AccountManager accountManager;
	final Account account;
	
	
    public AccountSettings(@NonNull Context context, @NonNull Account account) {
		this.context = context;
		this.account = account;
		
		accountManager = AccountManager.get(context);
		
		synchronized(AccountSettings.class) {
			int version = 0;
			try {
				version = Integer.parseInt(accountManager.getUserData(account, KEY_SETTINGS_VERSION));
			} catch(NumberFormatException ignored) {
			}
            App.log.info("Account " + account.name + " has version " + version + ", current version: " + CURRENT_VERSION);

			if (version < CURRENT_VERSION) {
                Notification notify = new NotificationCompat.Builder(context)
                        .setSmallIcon(R.drawable.ic_launcher)
                        .setContentTitle(context.getString(R.string.settings_version_update))
                        .setContentText(context.getString(R.string.settings_version_update_warning))
                        .setCategory(NotificationCompat.CATEGORY_SYSTEM)
                        .setPriority(NotificationCompat.PRIORITY_HIGH)
                        .setLocalOnly(true)
                        .build();
                NotificationManager nm = (NotificationManager)context.getSystemService(Context.NOTIFICATION_SERVICE);
                nm.notify(Constants.NOTIFICATION_ACCOUNT_SETTINGS_UPDATED, notify);

                update(version);
            }
		}
	}

	public static Bundle initialUserData(String userName, boolean preemptive) {
		Bundle bundle = new Bundle();
		bundle.putString(KEY_SETTINGS_VERSION, String.valueOf(CURRENT_VERSION));
		bundle.putString(KEY_USERNAME, userName);
		bundle.putString(KEY_AUTH_PREEMPTIVE, Boolean.toString(preemptive));
		return bundle;
	}
	
	
	// authentication settings

	public String username() { return accountManager.getUserData(account, KEY_USERNAME); }
	public void username(@NonNull String userName) { accountManager.setUserData(account, KEY_USERNAME, userName); }
	
	public String password() { return accountManager.getPassword(account); }
	public void password(@NonNull String password) { accountManager.setPassword(account, password); }
	
	public boolean preemptiveAuth() { return Boolean.parseBoolean(accountManager.getUserData(account, KEY_AUTH_PREEMPTIVE)); }
	public void preemptiveAuth(boolean preemptive) { accountManager.setUserData(account, KEY_AUTH_PREEMPTIVE, Boolean.toString(preemptive)); }


	// sync. settings

	public Long getSyncInterval(@NonNull String authority) {
		if (ContentResolver.getIsSyncable(account, authority) <= 0)
			return null;

		if (ContentResolver.getSyncAutomatically(account, authority)) {
			List<PeriodicSync> syncs = ContentResolver.getPeriodicSyncs(account, authority);
			if (syncs.isEmpty())
				return SYNC_INTERVAL_MANUALLY;
			else
				return syncs.get(0).period;
		} else
			return SYNC_INTERVAL_MANUALLY;
	}

	public void setSyncInterval(@NonNull String authority, long seconds) {
		if (seconds == SYNC_INTERVAL_MANUALLY) {
			ContentResolver.setSyncAutomatically(account, authority, false);
		} else {
			ContentResolver.setSyncAutomatically(account, authority, true);
			ContentResolver.addPeriodicSync(account, authority, new Bundle(), seconds);
		}
	}

    public Integer getTimeRangePastDays() {
        String strDays = accountManager.getUserData(account, KEY_TIME_RANGE_PAST_DAYS);
        if (strDays != null) {
            int days = Integer.valueOf(strDays);
            return days < 0 ? null : days;
        } else
            return DEFAULT_TIME_RANGE_PAST_DAYS;
    }

    public void setTimeRangePastDays(Integer days) {
        accountManager.setUserData(account, KEY_TIME_RANGE_PAST_DAYS, String.valueOf(days == null ? -1 : days));
    }

	
	// update from previous account settings
	
	private void update(int fromVersion) {
		for (int toVersion = fromVersion + 1; toVersion <= CURRENT_VERSION; toVersion++) {
            App.log.info("Updating account " + account.name + " from version " + fromVersion + " to " + toVersion);
            try {
                Method updateProc = getClass().getDeclaredMethod("update_" + fromVersion + "_" + toVersion);
                updateProc.invoke(this);
            } catch (Exception e) {
                App.log.log(Level.SEVERE, "Couldn't update account settings", e);
            }
            fromVersion = toVersion;
        }
	}

    @SuppressWarnings({ "Recycle", "unused" })
	private void update_0_1() throws URISyntaxException {
		String	v0_principalURL = accountManager.getUserData(account, "principal_url"),
				v0_addressBookPath = accountManager.getUserData(account, "addressbook_path");
        App.log.fine("Old principal URL = " + v0_principalURL);
        App.log.fine("Old address book path = " + v0_addressBookPath);
		
		URI principalURI = new URI(v0_principalURL);

		// update address book
		if (v0_addressBookPath != null) {
			String addressBookURL = principalURI.resolve(v0_addressBookPath).toASCIIString();
            App.log.fine("New address book URL = " + addressBookURL);
			accountManager.setUserData(account, "addressbook_url", addressBookURL);
		}
		
		// update calendars
		ContentResolver resolver = context.getContentResolver();
		Uri calendars = Calendars.CONTENT_URI.buildUpon()
				.appendQueryParameter(Calendars.ACCOUNT_NAME, account.name)
				.appendQueryParameter(Calendars.ACCOUNT_TYPE, account.type)
				.appendQueryParameter(CalendarContract.CALLER_IS_SYNCADAPTER, "true").build();
		@Cleanup Cursor cursor = resolver.query(calendars, new String[] { Calendars._ID, Calendars.NAME }, null, null, null);
		while (cursor != null && cursor.moveToNext()) {
			int id = cursor.getInt(0);
			String	v0_path = cursor.getString(1),
					v1_url = principalURI.resolve(v0_path).toASCIIString();
            App.log.fine("Updating calendar #" + id + " name: " + v0_path + " -> " + v1_url);
			Uri calendar = ContentUris.appendId(Calendars.CONTENT_URI.buildUpon()
					.appendQueryParameter(Calendars.ACCOUNT_NAME, account.name)
					.appendQueryParameter(Calendars.ACCOUNT_TYPE, account.type)
					.appendQueryParameter(CalendarContract.CALLER_IS_SYNCADAPTER, "true"), id).build();
			ContentValues newValues = new ContentValues(1);
			newValues.put(Calendars.NAME, v1_url);
			if (resolver.update(calendar, newValues, null, null) != 1)
                App.log.fine("Number of modified calendars != 1");
		}

		accountManager.setUserData(account, "principal_url", null);
		accountManager.setUserData(account, "addressbook_path", null);

		accountManager.setUserData(account, KEY_SETTINGS_VERSION, "1");
	}

    @SuppressWarnings({ "Recycle", "unused" })
    private void update_1_2() throws ContactsStorageException {
        /* - KEY_ADDRESSBOOK_URL ("addressbook_url"),
           - KEY_ADDRESSBOOK_CTAG ("addressbook_ctag"),
           - KEY_ADDRESSBOOK_VCARD_VERSION ("addressbook_vcard_version") are not used anymore (now stored in ContactsContract.SyncState)
           - KEY_LAST_ANDROID_VERSION ("last_android_version") has been added
        */

        // move previous address book info to ContactsContract.SyncState
        @Cleanup("release") ContentProviderClient provider = context.getContentResolver().acquireContentProviderClient(ContactsContract.AUTHORITY);
        if (provider == null)
            throw new ContactsStorageException("Couldn't access Contacts provider");

        LocalAddressBook addr = new LocalAddressBook(account, provider);

        // until now, ContactsContract.Settings.UNGROUPED_VISIBLE was not set explicitly
        ContentValues values = new ContentValues();
        values.put(ContactsContract.Settings.UNGROUPED_VISIBLE, 1);
        addr.updateSettings(values);

        String url = accountManager.getUserData(account, "addressbook_url");
        if (!TextUtils.isEmpty(url))
            addr.setURL(url);
        accountManager.setUserData(account, "addressbook_url", null);

        String cTag = accountManager.getUserData(account, "addressbook_ctag");
        if (!TextUtils.isEmpty(cTag))
            addr.setCTag(cTag);
        accountManager.setUserData(account, "addressbook_ctag", null);

        accountManager.setUserData(account, KEY_SETTINGS_VERSION, "2");
    }

    @SuppressWarnings({ "Recycle", "unused" })
    private void update_2_3() {
        // Don't show a warning for Android updates anymore
        accountManager.setUserData(account, "last_android_version", null);

        ServiceDB.OpenHelper dbHelper = new ServiceDB.OpenHelper(context);
        try {
            SQLiteDatabase db = dbHelper.getWritableDatabase();
            // we have to create the WebDAV Service database only from the old address book, calendar and task list URLs

            // CardDAV: migrate address books
            ContentProviderClient client = context.getContentResolver().acquireContentProviderClient(ContactsContract.AUTHORITY);
            if (client != null)
                try {
                    LocalAddressBook addrBook = new LocalAddressBook(account, client);
                    String url = addrBook.getURL();
                    if (url != null) {
                        App.log.fine("Migrating address book " + url);

                        // insert CardDAV service
                        ContentValues values = new ContentValues();
                        values.put(Services.ACCOUNT_NAME, account.name);
                        values.put(Services.SERVICE, Services.SERVICE_CARDDAV);
                        long service = db.insert(Services._TABLE, null, values);

                        // insert address book
                        values.clear();
                        values.put(Collections.SERVICE_ID, service);
                        values.put(Collections.URL, url);
                        values.put(Collections.SYNC, 1);
                        db.insert(Collections._TABLE, null, values);

                        // insert home set
                        HttpUrl homeSet = HttpUrl.parse(url).resolve("../");
                        values.clear();
                        values.put(HomeSets.SERVICE_ID, service);
                        values.put(HomeSets.URL, homeSet.toString());
                        db.insert(HomeSets._TABLE, null, values);
                    }
                } catch (ContactsStorageException e) {
                    App.log.log(Level.SEVERE, "Couldn't migrate address book", e);
                } finally {
                    client.release();
                }

            // CalDAV: migrate calendars + task lists
            Set<String> collections = new HashSet<>();
            Set<HttpUrl> homeSets = new HashSet<>();

            client = context.getContentResolver().acquireContentProviderClient(CalendarContract.AUTHORITY);
            if (client != null)
                try {
                    LocalCalendar calendars[] = (LocalCalendar[])LocalCalendar.find(account, client, LocalCalendar.Factory.INSTANCE, null, null);
                    for (LocalCalendar calendar : calendars) {
                        String url = calendar.getName();
                        App.log.fine("Migrating calendar " + url);
                        collections.add(url);
                        homeSets.add(HttpUrl.parse(url).resolve("../"));
                    }
                } catch (CalendarStorageException e) {
                    App.log.log(Level.SEVERE, "Couldn't migrate calendars", e);
                } finally {
                    client.release();
                }

            TaskProvider provider = LocalTaskList.acquireTaskProvider(context.getContentResolver());
            if (provider != null)
                try {
                    LocalTaskList[] taskLists = (LocalTaskList[])LocalTaskList.find(account, provider, LocalTaskList.Factory.INSTANCE, null, null);
                    for (LocalTaskList taskList : taskLists) {
                        String url = taskList.getSyncId();
                        App.log.fine("Migrating task list " + url);
                        collections.add(url);
                        homeSets.add(HttpUrl.parse(url).resolve("../"));
                    }
                } catch (CalendarStorageException e) {
                    App.log.log(Level.SEVERE, "Couldn't migrate task lists", e);
                } finally {
                    provider.close();
                }

            if (!collections.isEmpty()) {
                // insert CalDAV service
                ContentValues values = new ContentValues();
                values.put(Services.ACCOUNT_NAME, account.name);
                values.put(Services.SERVICE, Services.SERVICE_CALDAV);
                long service = db.insert(Services._TABLE, null, values);

                // insert collections
                for (String url : collections) {
                    values.clear();
                    values.put(Collections.SERVICE_ID, service);
                    values.put(Collections.URL, url);
                    values.put(Collections.SYNC, 1);
                    db.insert(Collections._TABLE, null, values);
                }

                // insert home sets
                for (HttpUrl homeSet : homeSets) {
                    values.clear();
                    values.put(HomeSets.SERVICE_ID, service);
                    values.put(HomeSets.URL, homeSet.toString());
                    db.insert(HomeSets._TABLE, null, values);
                }
            }

        } finally {
            dbHelper.close();
        }

        accountManager.setUserData(account, KEY_SETTINGS_VERSION, "3");
    }

}