1 files changed, 335 insertions, 0 deletions
diff --git a/conversations/src/main/java/eu/siacs/conversations/persistance/DatabaseBackend.java b/conversations/src/main/java/eu/siacs/conversations/persistance/DatabaseBackend.java
new file mode 100644
index 00000000..b49cf4e6
--- /dev/null
+++ b/conversations/src/main/java/eu/siacs/conversations/persistance/DatabaseBackend.java
@@ -0,0 +1,335 @@
+package eu.siacs.conversations.persistance;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.entities.Contact;
+import eu.siacs.conversations.entities.Conversation;
+import eu.siacs.conversations.entities.Message;
+import eu.siacs.conversations.entities.Roster;
+import android.content.Context;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteCantOpenDatabaseException;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+
+public class DatabaseBackend extends SQLiteOpenHelper {
+
+	private static DatabaseBackend instance = null;
+
+	private static final String DATABASE_NAME = "history";
+	private static final int DATABASE_VERSION = 8;
+
+	private static String CREATE_CONTATCS_STATEMENT = "create table "
+			+ Contact.TABLENAME + "(" + Contact.ACCOUNT + " TEXT, "
+			+ Contact.SERVERNAME + " TEXT, " + Contact.SYSTEMNAME + " TEXT,"
+			+ Contact.JID + " TEXT," + Contact.KEYS + " TEXT,"
+			+ Contact.PHOTOURI + " TEXT," + Contact.OPTIONS + " NUMBER,"
+			+ Contact.SYSTEMACCOUNT + " NUMBER, " + Contact.AVATAR + " TEXT, "
+			+ "FOREIGN KEY(" + Contact.ACCOUNT + ") REFERENCES "
+			+ Account.TABLENAME + "(" + Account.UUID
+			+ ") ON DELETE CASCADE, UNIQUE(" + Contact.ACCOUNT + ", "
+			+ Contact.JID + ") ON CONFLICT REPLACE);";
+
+	private DatabaseBackend(Context context) {
+		super(context, DATABASE_NAME, null, DATABASE_VERSION);
+	}
+
+	@Override
+	public void onCreate(SQLiteDatabase db) {
+		db.execSQL("PRAGMA foreign_keys=ON;");
+		db.execSQL("create table " + Account.TABLENAME + "(" + Account.UUID
+				+ " TEXT PRIMARY KEY," + Account.USERNAME + " TEXT,"
+				+ Account.SERVER + " TEXT," + Account.PASSWORD + " TEXT,"
+				+ Account.ROSTERVERSION + " TEXT," + Account.OPTIONS
+				+ " NUMBER, " + Account.AVATAR + " TEXT, " + Account.KEYS
+				+ " TEXT)");
+		db.execSQL("create table " + Conversation.TABLENAME + " ("
+				+ Conversation.UUID + " TEXT PRIMARY KEY, " + Conversation.NAME
+				+ " TEXT, " + Conversation.CONTACT + " TEXT, "
+				+ Conversation.ACCOUNT + " TEXT, " + Conversation.CONTACTJID
+				+ " TEXT, " + Conversation.CREATED + " NUMBER, "
+				+ Conversation.STATUS + " NUMBER, " + Conversation.MODE
+				+ " NUMBER, " + Conversation.ATTRIBUTES + " TEXT, FOREIGN KEY("
+				+ Conversation.ACCOUNT + ") REFERENCES " + Account.TABLENAME
+				+ "(" + Account.UUID + ") ON DELETE CASCADE);");
+		db.execSQL("create table " + Message.TABLENAME + "( " + Message.UUID
+				+ " TEXT PRIMARY KEY, " + Message.CONVERSATION + " TEXT, "
+				+ Message.TIME_SENT + " NUMBER, " + Message.COUNTERPART
+				+ " TEXT, " + Message.TRUE_COUNTERPART + " TEXT,"
+				+ Message.BODY + " TEXT, " + Message.ENCRYPTION + " NUMBER, "
+				+ Message.STATUS + " NUMBER," + Message.TYPE + " NUMBER, "
+				+ Message.REMOTE_MSG_ID + " TEXT, FOREIGN KEY("
+				+ Message.CONVERSATION + ") REFERENCES "
+				+ Conversation.TABLENAME + "(" + Conversation.UUID
+				+ ") ON DELETE CASCADE);");
+
+		db.execSQL(CREATE_CONTATCS_STATEMENT);
+	}
+
+	@Override
+	public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+		if (oldVersion < 2 && newVersion >= 2) {
+			db.execSQL("update " + Account.TABLENAME + " set "
+					+ Account.OPTIONS + " = " + Account.OPTIONS + " | 8");
+		}
+		if (oldVersion < 3 && newVersion >= 3) {
+			db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN "
+					+ Message.TYPE + " NUMBER");
+		}
+		if (oldVersion < 5 && newVersion >= 5) {
+			db.execSQL("DROP TABLE " + Contact.TABLENAME);
+			db.execSQL(CREATE_CONTATCS_STATEMENT);
+			db.execSQL("UPDATE " + Account.TABLENAME + " SET "
+					+ Account.ROSTERVERSION + " = NULL");
+		}
+		if (oldVersion < 6 && newVersion >= 6) {
+			db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN "
+					+ Message.TRUE_COUNTERPART + " TEXT");
+		}
+		if (oldVersion < 7 && newVersion >= 7) {
+			db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN "
+					+ Message.REMOTE_MSG_ID + " TEXT");
+			db.execSQL("ALTER TABLE " + Contact.TABLENAME + " ADD COLUMN "
+					+ Contact.AVATAR + " TEXT");
+			db.execSQL("ALTER TABLE " + Account.TABLENAME + " ADD COLUMN "
+					+ Account.AVATAR + " TEXT");
+		}
+		if (oldVersion < 8 && newVersion >= 8) {
+			db.execSQL("ALTER TABLE " + Conversation.TABLENAME + " ADD COLUMN "
+					+ Conversation.ATTRIBUTES + " TEXT");
+		}
+	}
+
+	public static synchronized DatabaseBackend getInstance(Context context) {
+		if (instance == null) {
+			instance = new DatabaseBackend(context);
+		}
+		return instance;
+	}
+
+	public void createConversation(Conversation conversation) {
+		SQLiteDatabase db = this.getWritableDatabase();
+		db.insert(Conversation.TABLENAME, null, conversation.getContentValues());
+	}
+
+	public void createMessage(Message message) {
+		SQLiteDatabase db = this.getWritableDatabase();
+		db.insert(Message.TABLENAME, null, message.getContentValues());
+	}
+
+	public void createAccount(Account account) {
+		SQLiteDatabase db = this.getWritableDatabase();
+		db.insert(Account.TABLENAME, null, account.getContentValues());
+	}
+
+	public void createContact(Contact contact) {
+		SQLiteDatabase db = this.getWritableDatabase();
+		db.insert(Contact.TABLENAME, null, contact.getContentValues());
+	}
+
+	public int getConversationCount() {
+		SQLiteDatabase db = this.getReadableDatabase();
+		Cursor cursor = db.rawQuery("select count(uuid) as count from "
+				+ Conversation.TABLENAME + " where " + Conversation.STATUS
+				+ "=" + Conversation.STATUS_AVAILABLE, null);
+		cursor.moveToFirst();
+		return cursor.getInt(0);
+	}
+
+	public CopyOnWriteArrayList<Conversation> getConversations(int status) {
+		CopyOnWriteArrayList<Conversation> list = new CopyOnWriteArrayList<Conversation>();
+		SQLiteDatabase db = this.getReadableDatabase();
+		String[] selectionArgs = { Integer.toString(status) };
+		Cursor cursor = db.rawQuery("select * from " + Conversation.TABLENAME
+				+ " where " + Conversation.STATUS + " = ? order by "
+				+ Conversation.CREATED + " desc", selectionArgs);
+		while (cursor.moveToNext()) {
+			list.add(Conversation.fromCursor(cursor));
+		}
+		return list;
+	}
+
+	public ArrayList<Message> getMessages(Conversation conversations, int limit) {
+		return getMessages(conversations, limit, -1);
+	}
+
+	public ArrayList<Message> getMessages(Conversation conversation, int limit,
+			long timestamp) {
+		ArrayList<Message> list = new ArrayList<Message>();
+		SQLiteDatabase db = this.getReadableDatabase();
+		Cursor cursor;
+		if (timestamp == -1) {
+			String[] selectionArgs = { conversation.getUuid() };
+			cursor = db.query(Message.TABLENAME, null, Message.CONVERSATION
+					+ "=?", selectionArgs, null, null, Message.TIME_SENT
+					+ " DESC", String.valueOf(limit));
+		} else {
+			String[] selectionArgs = { conversation.getUuid(),
+					Long.toString(timestamp) };
+			cursor = db.query(Message.TABLENAME, null, Message.CONVERSATION
+					+ "=? and " + Message.TIME_SENT + "<?", selectionArgs,
+					null, null, Message.TIME_SENT + " DESC",
+					String.valueOf(limit));
+		}
+		if (cursor.getCount() > 0) {
+			cursor.moveToLast();
+			do {
+				Message message = Message.fromCursor(cursor);
+				message.setConversation(conversation);
+				list.add(message);
+			} while (cursor.moveToPrevious());
+		}
+		return list;
+	}
+
+	public Conversation findConversation(Account account, String contactJid) {
+		SQLiteDatabase db = this.getReadableDatabase();
+		String[] selectionArgs = { account.getUuid(), contactJid + "%" };
+		Cursor cursor = db.query(Conversation.TABLENAME, null,
+				Conversation.ACCOUNT + "=? AND " + Conversation.CONTACTJID
+						+ " like ?", selectionArgs, null, null, null);
+		if (cursor.getCount() == 0)
+			return null;
+		cursor.moveToFirst();
+		return Conversation.fromCursor(cursor);
+	}
+
+	public void updateConversation(Conversation conversation) {
+		SQLiteDatabase db = this.getWritableDatabase();
+		String[] args = { conversation.getUuid() };
+		db.update(Conversation.TABLENAME, conversation.getContentValues(),
+				Conversation.UUID + "=?", args);
+	}
+
+	public List<Account> getAccounts() {
+		List<Account> list = new ArrayList<Account>();
+		SQLiteDatabase db = this.getReadableDatabase();
+		Cursor cursor = db.query(Account.TABLENAME, null, null, null, null,
+				null, null);
+		while (cursor.moveToNext()) {
+			list.add(Account.fromCursor(cursor));
+		}
+		cursor.close();
+		return list;
+	}
+
+	public void updateAccount(Account account) {
+		SQLiteDatabase db = this.getWritableDatabase();
+		String[] args = { account.getUuid() };
+		db.update(Account.TABLENAME, account.getContentValues(), Account.UUID
+				+ "=?", args);
+	}
+
+	public void deleteAccount(Account account) {
+		SQLiteDatabase db = this.getWritableDatabase();
+		String[] args = { account.getUuid() };
+		db.delete(Account.TABLENAME, Account.UUID + "=?", args);
+	}
+
+	public boolean hasEnabledAccounts() {
+		SQLiteDatabase db = this.getReadableDatabase();
+		Cursor cursor = db.rawQuery("select count(" + Account.UUID + ")  from "
+				+ Account.TABLENAME + " where not options & (1 <<1)", null);
+		try {
+			cursor.moveToFirst();
+			int count = cursor.getInt(0);
+			cursor.close();
+			return (count > 0);
+		} catch (SQLiteCantOpenDatabaseException e) {
+			return true; // better safe than sorry
+		}
+	}
+
+	@Override
+	public SQLiteDatabase getWritableDatabase() {
+		SQLiteDatabase db = super.getWritableDatabase();
+		db.execSQL("PRAGMA foreign_keys=ON;");
+		return db;
+	}
+
+	public void updateMessage(Message message) {
+		SQLiteDatabase db = this.getWritableDatabase();
+		String[] args = { message.getUuid() };
+		db.update(Message.TABLENAME, message.getContentValues(), Message.UUID
+				+ "=?", args);
+	}
+
+	public void readRoster(Roster roster) {
+		SQLiteDatabase db = this.getReadableDatabase();
+		Cursor cursor;
+		String args[] = { roster.getAccount().getUuid() };
+		cursor = db.query(Contact.TABLENAME, null, Contact.ACCOUNT + "=?",
+				args, null, null, null);
+		while (cursor.moveToNext()) {
+			roster.initContact(Contact.fromCursor(cursor));
+		}
+		cursor.close();
+	}
+
+	public void writeRoster(Roster roster) {
+		Account account = roster.getAccount();
+		SQLiteDatabase db = this.getWritableDatabase();
+		for (Contact contact : roster.getContacts()) {
+			if (contact.getOption(Contact.Options.IN_ROSTER)) {
+				db.insert(Contact.TABLENAME, null, contact.getContentValues());
+			} else {
+				String where = Contact.ACCOUNT + "=? AND " + Contact.JID + "=?";
+				String[] whereArgs = { account.getUuid(), contact.getJid() };
+				db.delete(Contact.TABLENAME, where, whereArgs);
+			}
+		}
+		account.setRosterVersion(roster.getVersion());
+		updateAccount(account);
+	}
+
+	public void deleteMessage(Message message) {
+		SQLiteDatabase db = this.getWritableDatabase();
+		String[] args = { message.getUuid() };
+		db.delete(Message.TABLENAME, Message.UUID + "=?", args);
+	}
+
+	public void deleteMessagesInConversation(Conversation conversation) {
+		SQLiteDatabase db = this.getWritableDatabase();
+		String[] args = { conversation.getUuid() };
+		db.delete(Message.TABLENAME, Message.CONVERSATION + "=?", args);
+	}
+
+	public Conversation findConversationByUuid(String conversationUuid) {
+		SQLiteDatabase db = this.getReadableDatabase();
+		String[] selectionArgs = { conversationUuid };
+		Cursor cursor = db.query(Conversation.TABLENAME, null,
+				Conversation.UUID + "=?", selectionArgs, null, null, null);
+		if (cursor.getCount() == 0) {
+			return null;
+		}
+		cursor.moveToFirst();
+		return Conversation.fromCursor(cursor);
+	}
+
+	public Message findMessageByUuid(String messageUuid) {
+		SQLiteDatabase db = this.getReadableDatabase();
+		String[] selectionArgs = { messageUuid };
+		Cursor cursor = db.query(Message.TABLENAME, null, Message.UUID + "=?",
+				selectionArgs, null, null, null);
+		if (cursor.getCount() == 0) {
+			return null;
+		}
+		cursor.moveToFirst();
+		return Message.fromCursor(cursor);
+	}
+
+	public Account findAccountByUuid(String accountUuid) {
+		SQLiteDatabase db = this.getReadableDatabase();
+		String[] selectionArgs = { accountUuid };
+		Cursor cursor = db.query(Account.TABLENAME, null, Account.UUID + "=?",
+				selectionArgs, null, null, null);
+		if (cursor.getCount() == 0) {
+			return null;
+		}
+		cursor.moveToFirst();
+		return Account.fromCursor(cursor);
+	}
+}