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/*
* Copyright (C) 2007 Kenny Root (kenny at the-b.org)
*
* This file is part of Connectbot.
*
* Connectbot is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Connectbot is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Connectbot. If not, see <http://www.gnu.org/licenses/>.
*/
package org.theb.ssh;
import java.util.HashMap;
import org.theb.provider.HostDb;
import android.content.ContentProvider;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.UriMatcher;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.database.sqlite.SQLiteQueryBuilder;
import android.net.Uri;
import android.text.TextUtils;
import android.util.Log;
public class HostDbProvider extends ContentProvider {
private SQLiteDatabase mDB;
private static final String TAG = "HostDbProvider";
private static final String DATABASE_NAME = "ssh_hosts.db";
private static final int DATABASE_VERSION = 2;
private static HashMap<String, String> HOSTS_LIST_PROJECTION_MAP;
private static final int HOSTS = 1;
private static final int HOST_ID = 2;
private static final UriMatcher URL_MATCHER;
private static class DatabaseHelper extends SQLiteOpenHelper {
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("CREATE TABLE hosts (_id INTEGER PRIMARY KEY,"
+ "hostname TEXT," + "username TEXT," + "port INTEGER,"
+ "hostkey TEXT" + ")");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
Log.w(TAG, "Upgrading database from version " + oldVersion + " to "
+ newVersion + ", which will destroy all old data");
db.execSQL("DROP TABLE IF EXISTS hosts");
onCreate(db);
}
}
@Override
public int delete(Uri uri, String where, String[] whereArgs) {
int count;
switch (URL_MATCHER.match(uri)) {
case HOSTS:
count = mDB.delete("ssh_hosts", where, whereArgs);
break;
case HOST_ID:
String segment = uri.getPathSegments().get(1);
count = mDB.delete("hosts", "_id="
+ segment
+ (!TextUtils.isEmpty(where) ? " AND (" + where
+ ')' : ""), whereArgs);
break;
default:
throw new IllegalArgumentException("Unknown Delete " + uri);
}
getContext().getContentResolver().notifyChange(uri, null);
return count;
}
@Override
public String getType(Uri uri) {
switch (URL_MATCHER.match(uri)) {
case HOSTS:
return "vnd.android.cursor.dir/vnd.theb.host";
case HOST_ID:
return "vnd.android.cursor.item/vnd.theb.host";
default:
throw new IllegalArgumentException("Unknown getType " + uri);
}
}
@Override
public Uri insert(Uri uri, ContentValues initialValues) {
long rowID;
ContentValues values;
if (initialValues != null) {
values = new ContentValues(initialValues);
} else {
values = new ContentValues();
}
/*
if (URL_MATCHER.match(uri) != HOSTS) {
throw new IllegalArgumentException("Unknown Insert " + uri);
}
*/
if (values.containsKey(HostDb.Hosts.HOSTNAME) == false) {
values.put(HostDb.Hosts.HOSTNAME, "");
}
if (values.containsKey(HostDb.Hosts.USERNAME) == false) {
values.put(HostDb.Hosts.USERNAME, "");
}
if (values.containsKey(HostDb.Hosts.PORT) == false) {
values.put(HostDb.Hosts.PORT, 22);
}
if (values.containsKey(HostDb.Hosts.HOSTKEY) == false) {
values.put(HostDb.Hosts.HOSTKEY, "");
}
rowID = mDB.insert("hosts", "host", values);
if (rowID > 0) {
Uri newUri = ContentUris.withAppendedId(HostDb.Hosts.CONTENT_URI, rowID);
getContext().getContentResolver().notifyChange(newUri, null);
return newUri;
}
throw new SQLException("Failed to insert row into " + uri);
}
@Override
public boolean onCreate() {
DatabaseHelper dbHelper = new DatabaseHelper();
mDB = dbHelper.openDatabase(getContext(), DATABASE_NAME, null, DATABASE_VERSION);
return (mDB == null) ? false : true;
}
@Override
public Cursor query(Uri uri, String[] projection, String selection,
String[] selectionArgs, String sortOrder) {
SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
switch (URL_MATCHER.match(uri)) {
case HOSTS:
qb.setTables("hosts");
qb.setProjectionMap(HOSTS_LIST_PROJECTION_MAP);
break;
case HOST_ID:
qb.setTables("hosts");
qb.appendWhere("_id=" + uri.getPathSegments().get(1));
break;
default:
throw new IllegalArgumentException("Unknown Query " + uri);
}
String orderBy;
if (TextUtils.isEmpty(sortOrder)) {
orderBy = HostDb.Hosts.DEFAULT_SORT_ORDER;
} else {
orderBy = sortOrder;
}
Cursor c = qb.query(mDB, projection, selection, selectionArgs, null,
null, orderBy);
c.setNotificationUri(getContext().getContentResolver(), uri);
return c;
}
@Override
public int update(Uri uri, ContentValues values, String where,
String[] whereArgs) {
int count;
switch (URL_MATCHER.match(uri)) {
case HOSTS:
count = mDB.update("hosts", values, where, whereArgs);
break;
case HOST_ID:
String segment = uri.getPathSegments().get(1);
count = mDB
.update("hosts", values, "_id="
+ segment
+ (!TextUtils.isEmpty(where) ? " AND (" + where
+ ')' : ""), whereArgs);
break;
default:
throw new IllegalArgumentException("Unknown Update " + uri);
}
getContext().getContentResolver().notifyChange(uri, null);
return count;
}
static {
URL_MATCHER = new UriMatcher(UriMatcher.NO_MATCH);
URL_MATCHER.addURI("org.theb.provider.HostDb", "hosts", HOSTS);
URL_MATCHER.addURI("org.theb.provider.HostDb", "hosts/#", HOST_ID);
HOSTS_LIST_PROJECTION_MAP = new HashMap<String, String>();
HOSTS_LIST_PROJECTION_MAP.put(HostDb.Hosts._ID, "_id");
HOSTS_LIST_PROJECTION_MAP.put(HostDb.Hosts.HOSTNAME, "hostname");
HOSTS_LIST_PROJECTION_MAP.put(HostDb.Hosts.USERNAME, "username");
HOSTS_LIST_PROJECTION_MAP.put(HostDb.Hosts.PORT, "port");
HOSTS_LIST_PROJECTION_MAP.put(HostDb.Hosts.HOSTKEY, "hostkey");
}
}
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