| /* //device/content/providers/telephony/TelephonyProvider.java |
| ** |
| ** Copyright 2006, The Android Open Source Project |
| ** |
| ** Licensed under the Apache License, Version 2.0 (the "License"); |
| ** you may not use this file except in compliance with the License. |
| ** You may obtain a copy of the License at |
| ** |
| ** http://www.apache.org/licenses/LICENSE-2.0 |
| ** |
| ** Unless required by applicable law or agreed to in writing, software |
| ** distributed under the License is distributed on an "AS IS" BASIS, |
| ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| ** See the License for the specific language governing permissions and |
| ** limitations under the License. |
| */ |
| |
| package com.android.providers.telephony; |
| |
| import android.content.*; |
| import android.content.res.Resources; |
| import android.content.res.XmlResourceParser; |
| import android.database.Cursor; |
| import android.database.sqlite.SQLiteDatabase; |
| import android.database.sqlite.SQLiteOpenHelper; |
| import android.database.sqlite.SQLiteQueryBuilder; |
| import android.net.Uri; |
| import android.os.Environment; |
| import android.preference.PreferenceManager; |
| import android.provider.Telephony; |
| import android.util.Config; |
| import android.util.Log; |
| import android.util.Xml; |
| import com.android.internal.util.XmlUtils; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.FileReader; |
| import java.io.IOException; |
| |
| public class TelephonyProvider extends ContentProvider |
| { |
| private static final String DATABASE_NAME = "telephony.db"; |
| // DATABASE_VERSION needs to be in-sync with version in apns.xml. |
| private static final int DATABASE_VERSION = 4 << 16; |
| private static final int URL_TELEPHONY = 1; |
| private static final int URL_CURRENT = 2; |
| private static final int URL_ID = 3; |
| private static final int URL_RESTOREAPN = 4; |
| private static final int URL_PREFERAPN = 5; |
| |
| private static final String TAG = "TelephonyProvider"; |
| private static final String CARRIERS_TABLE = "carriers"; |
| |
| private static final String PREF_FILE = "preferred-apn"; |
| private static final String COLUMN_APN_ID = "apn_id"; |
| |
| private static final String PARTNER_APNS_PATH = "etc/apns-conf.xml"; |
| |
| private static final UriMatcher s_urlMatcher = new UriMatcher(UriMatcher.NO_MATCH); |
| |
| private static final ContentValues s_currentNullMap; |
| private static final ContentValues s_currentSetMap; |
| |
| static { |
| s_urlMatcher.addURI("telephony", "carriers", URL_TELEPHONY); |
| s_urlMatcher.addURI("telephony", "carriers/current", URL_CURRENT); |
| s_urlMatcher.addURI("telephony", "carriers/#", URL_ID); |
| s_urlMatcher.addURI("telephony", "carriers/restore", URL_RESTOREAPN); |
| s_urlMatcher.addURI("telephony", "carriers/preferapn", URL_PREFERAPN); |
| |
| s_currentNullMap = new ContentValues(1); |
| s_currentNullMap.put("current", (Long) null); |
| |
| s_currentSetMap = new ContentValues(1); |
| s_currentSetMap.put("current", "1"); |
| } |
| |
| private static class DatabaseHelper extends SQLiteOpenHelper { |
| // Context to access resources with |
| private Context mContext; |
| |
| /** |
| * DatabaseHelper helper class for loading apns into a database. |
| * |
| * @param parser the system-default parser for apns.xml |
| * @param confidential an optional parser for confidential APNS (stored separately) |
| */ |
| public DatabaseHelper(Context context) { |
| super(context, DATABASE_NAME, null, getVersion(context)); |
| mContext = context; |
| } |
| |
| private static int getVersion(Context context) { |
| // Get the database version, combining a static schema version and the XML version |
| Resources r = context.getResources(); |
| XmlResourceParser parser = r.getXml(com.android.internal.R.xml.apns); |
| try { |
| XmlUtils.beginDocument(parser, "apns"); |
| int publicversion = Integer.parseInt(parser.getAttributeValue(null, "version")); |
| return DATABASE_VERSION | publicversion; |
| } catch (Exception e) { |
| Log.e(TAG, "Can't get version of APN database", e); |
| return DATABASE_VERSION; |
| } finally { |
| parser.close(); |
| } |
| } |
| |
| @Override |
| public void onCreate(SQLiteDatabase db) { |
| // Set up the database schema |
| db.execSQL("CREATE TABLE " + CARRIERS_TABLE + |
| "(_id INTEGER PRIMARY KEY," + |
| "name TEXT," + |
| "numeric TEXT," + |
| "mcc TEXT," + |
| "mnc TEXT," + |
| "apn TEXT," + |
| "user TEXT," + |
| "server TEXT," + |
| "password TEXT," + |
| "proxy TEXT," + |
| "port TEXT," + |
| "mmsproxy TEXT," + |
| "mmsport TEXT," + |
| "mmsc TEXT," + |
| "type TEXT," + |
| "current INTEGER);"); |
| |
| initDatabase(db); |
| } |
| |
| private void initDatabase(SQLiteDatabase db) { |
| // Read internal APNS data |
| Resources r = mContext.getResources(); |
| XmlResourceParser parser = r.getXml(com.android.internal.R.xml.apns); |
| int publicversion = -1; |
| try { |
| XmlUtils.beginDocument(parser, "apns"); |
| publicversion = Integer.parseInt(parser.getAttributeValue(null, "version")); |
| loadApns(db, parser); |
| } catch (Exception e) { |
| Log.e(TAG, "Got exception while loading APN database.", e); |
| } finally { |
| parser.close(); |
| } |
| |
| // Read external APNS data (partner-provided) |
| XmlPullParser confparser = null; |
| // Environment.getRootDirectory() is a fancy way of saying ANDROID_ROOT or "/system". |
| File confFile = new File(Environment.getRootDirectory(), PARTNER_APNS_PATH); |
| FileReader confreader = null; |
| try { |
| confreader = new FileReader(confFile); |
| confparser = Xml.newPullParser(); |
| confparser.setInput(confreader); |
| XmlUtils.beginDocument(confparser, "apns"); |
| |
| // Sanity check. Force internal version and confidential versions to agree |
| int confversion = Integer.parseInt(confparser.getAttributeValue(null, "version")); |
| if (publicversion != confversion) { |
| throw new IllegalStateException("Internal APNS file version doesn't match " |
| + confFile.getAbsolutePath()); |
| } |
| |
| loadApns(db, confparser); |
| } catch (FileNotFoundException e) { |
| // It's ok if the file isn't found. It means there isn't a confidential file |
| // Log.e(TAG, "File not found: '" + confFile.getAbsolutePath() + "'"); |
| } catch (Exception e) { |
| Log.e(TAG, "Exception while parsing '" + confFile.getAbsolutePath() + "'", e); |
| } finally { |
| try { if (confreader != null) confreader.close(); } catch (IOException e) { } |
| } |
| } |
| |
| @Override |
| public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { |
| db.execSQL("DROP TABLE IF EXISTS " + CARRIERS_TABLE + ";"); |
| onCreate(db); |
| } |
| |
| /** |
| * Gets the next row of apn values. |
| * |
| * @param parser the parser |
| * @return the row or null if it's not an apn |
| */ |
| private ContentValues getRow(XmlPullParser parser) { |
| if (!"apn".equals(parser.getName())) { |
| return null; |
| } |
| |
| ContentValues map = new ContentValues(); |
| |
| String mcc = parser.getAttributeValue(null, "mcc"); |
| String mnc = parser.getAttributeValue(null, "mnc"); |
| String numeric = mcc + mnc; |
| |
| map.put(Telephony.Carriers.NUMERIC,numeric); |
| map.put(Telephony.Carriers.MCC, mcc); |
| map.put(Telephony.Carriers.MNC, mnc); |
| map.put(Telephony.Carriers.NAME, parser.getAttributeValue(null, "carrier")); |
| map.put(Telephony.Carriers.APN, parser.getAttributeValue(null, "apn")); |
| map.put(Telephony.Carriers.USER, parser.getAttributeValue(null, "user")); |
| map.put(Telephony.Carriers.SERVER, parser.getAttributeValue(null, "server")); |
| map.put(Telephony.Carriers.PASSWORD, parser.getAttributeValue(null, "password")); |
| |
| // do not add NULL to the map so that insert() will set the default value |
| String proxy = parser.getAttributeValue(null, "proxy"); |
| if (proxy != null) { |
| map.put(Telephony.Carriers.PROXY, proxy); |
| } |
| String port = parser.getAttributeValue(null, "port"); |
| if (port != null) { |
| map.put(Telephony.Carriers.PORT, port); |
| } |
| String mmsproxy = parser.getAttributeValue(null, "mmsproxy"); |
| if (mmsproxy != null) { |
| map.put(Telephony.Carriers.MMSPROXY, mmsproxy); |
| } |
| String mmsport = parser.getAttributeValue(null, "mmsport"); |
| if (mmsport != null) { |
| map.put(Telephony.Carriers.MMSPORT, mmsport); |
| } |
| map.put(Telephony.Carriers.MMSC, parser.getAttributeValue(null, "mmsc")); |
| String type = parser.getAttributeValue(null, "type"); |
| if (type != null) { |
| map.put(Telephony.Carriers.TYPE, type); |
| } |
| |
| return map; |
| } |
| |
| /* |
| * Loads apns from xml file into the database |
| * |
| * @param db the sqlite database to write to |
| * @param parser the xml parser |
| * |
| */ |
| private void loadApns(SQLiteDatabase db, XmlPullParser parser) { |
| if (parser != null) { |
| try { |
| while (true) { |
| XmlUtils.nextElement(parser); |
| ContentValues row = getRow(parser); |
| if (row != null) { |
| db.insert(CARRIERS_TABLE, null, row); |
| } else { |
| break; // do we really want to skip the rest of the file? |
| } |
| } |
| } catch (XmlPullParserException e) { |
| Log.e(TAG, "Got execption while getting perferred time zone.", e); |
| } catch (IOException e) { |
| Log.e(TAG, "Got execption while getting perferred time zone.", e); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public boolean onCreate() { |
| mOpenHelper = new DatabaseHelper(getContext()); |
| return true; |
| } |
| |
| private void setPreferredApnId(Long id) { |
| SharedPreferences sp = getContext().getSharedPreferences(PREF_FILE, Context.MODE_PRIVATE); |
| SharedPreferences.Editor editor = sp.edit(); |
| editor.putLong(COLUMN_APN_ID, id != null ? id.longValue() : -1); |
| editor.commit(); |
| } |
| |
| private long getPreferredApnId() { |
| SharedPreferences sp = getContext().getSharedPreferences(PREF_FILE, Context.MODE_PRIVATE); |
| return sp.getLong(COLUMN_APN_ID, -1); |
| } |
| |
| @Override |
| public Cursor query(Uri url, String[] projectionIn, String selection, |
| String[] selectionArgs, String sort) { |
| SQLiteQueryBuilder qb = new SQLiteQueryBuilder(); |
| qb.setTables("carriers"); |
| |
| int match = s_urlMatcher.match(url); |
| switch (match) { |
| // do nothing |
| case URL_TELEPHONY: { |
| break; |
| } |
| |
| |
| case URL_CURRENT: { |
| qb.appendWhere("current IS NOT NULL"); |
| // ignore the selection |
| selection = null; |
| break; |
| } |
| |
| case URL_ID: { |
| qb.appendWhere("_id = " + url.getPathSegments().get(1)); |
| break; |
| } |
| |
| case URL_PREFERAPN: { |
| qb.appendWhere("_id = " + getPreferredApnId()); |
| break; |
| } |
| |
| default: { |
| return null; |
| } |
| } |
| |
| SQLiteDatabase db = mOpenHelper.getReadableDatabase(); |
| Cursor ret = qb.query(db, projectionIn, selection, selectionArgs, null, null, sort); |
| ret.setNotificationUri(getContext().getContentResolver(), url); |
| return ret; |
| } |
| |
| @Override |
| public String getType(Uri url) |
| { |
| switch (s_urlMatcher.match(url)) { |
| case URL_TELEPHONY: |
| return "vnd.android.cursor.dir/telephony-carrier"; |
| |
| case URL_ID: |
| return "vnd.android.cursor.item/telephony-carrier"; |
| |
| case URL_PREFERAPN: |
| return "vnd.android.cursor.item/telephony-carrier"; |
| |
| default: |
| throw new IllegalArgumentException("Unknown URL " + url); |
| } |
| } |
| |
| @Override |
| public Uri insert(Uri url, ContentValues initialValues) |
| { |
| Uri result = null; |
| |
| checkPermission(); |
| |
| SQLiteDatabase db = mOpenHelper.getWritableDatabase(); |
| int match = s_urlMatcher.match(url); |
| boolean notify = false; |
| switch (match) |
| { |
| case URL_TELEPHONY: |
| { |
| ContentValues values; |
| if (initialValues != null) { |
| values = new ContentValues(initialValues); |
| } else { |
| values = new ContentValues(); |
| } |
| |
| // TODO Review this. This code should probably not bet here. |
| // It is valid for the database to return a null string. |
| if (values.containsKey(Telephony.Carriers.NAME) == false) { |
| values.put(Telephony.Carriers.NAME, ""); |
| } |
| if (values.containsKey(Telephony.Carriers.APN) == false) { |
| values.put(Telephony.Carriers.APN, ""); |
| } |
| if (values.containsKey(Telephony.Carriers.PORT) == false) { |
| values.put(Telephony.Carriers.PORT, ""); |
| } |
| if (values.containsKey(Telephony.Carriers.PROXY) == false) { |
| values.put(Telephony.Carriers.PROXY, ""); |
| } |
| if (values.containsKey(Telephony.Carriers.USER) == false) { |
| values.put(Telephony.Carriers.USER, ""); |
| } |
| if (values.containsKey(Telephony.Carriers.SERVER) == false) { |
| values.put(Telephony.Carriers.SERVER, ""); |
| } |
| if (values.containsKey(Telephony.Carriers.PASSWORD) == false) { |
| values.put(Telephony.Carriers.PASSWORD, ""); |
| } |
| if (values.containsKey(Telephony.Carriers.MMSPORT) == false) { |
| values.put(Telephony.Carriers.MMSPORT, ""); |
| } |
| if (values.containsKey(Telephony.Carriers.MMSPROXY) == false) { |
| values.put(Telephony.Carriers.MMSPROXY, ""); |
| } |
| |
| long rowID = db.insert(CARRIERS_TABLE, null, values); |
| if (rowID > 0) |
| { |
| result = ContentUris.withAppendedId(Telephony.Carriers.CONTENT_URI, rowID); |
| notify = true; |
| } |
| |
| if (Config.LOGD) Log.d(TAG, "inserted " + values.toString() + " rowID = " + rowID); |
| break; |
| } |
| |
| case URL_CURRENT: |
| { |
| // null out the previous operator |
| db.update("carriers", s_currentNullMap, "current IS NOT NULL", null); |
| |
| String numeric = initialValues.getAsString("numeric"); |
| int updated = db.update("carriers", s_currentSetMap, |
| "numeric = '" + numeric + "'", null); |
| |
| if (updated > 0) |
| { |
| if (Config.LOGD) { |
| Log.d(TAG, "Setting numeric '" + numeric + "' to be the current operator"); |
| } |
| } |
| else |
| { |
| Log.e(TAG, "Failed setting numeric '" + numeric + "' to the current operator"); |
| } |
| break; |
| } |
| |
| case URL_PREFERAPN: |
| { |
| if (initialValues != null) { |
| if(initialValues.containsKey(COLUMN_APN_ID)) { |
| setPreferredApnId(initialValues.getAsLong(COLUMN_APN_ID)); |
| } |
| } |
| break; |
| } |
| } |
| |
| if (notify) { |
| getContext().getContentResolver().notifyChange(Telephony.Carriers.CONTENT_URI, null); |
| } |
| |
| return result; |
| } |
| |
| @Override |
| public int delete(Uri url, String where, String[] whereArgs) |
| { |
| int count; |
| |
| checkPermission(); |
| |
| SQLiteDatabase db = mOpenHelper.getWritableDatabase(); |
| int match = s_urlMatcher.match(url); |
| switch (match) |
| { |
| case URL_TELEPHONY: |
| { |
| count = db.delete(CARRIERS_TABLE, where, whereArgs); |
| break; |
| } |
| |
| case URL_CURRENT: |
| { |
| count = db.delete(CARRIERS_TABLE, where, whereArgs); |
| break; |
| } |
| |
| case URL_ID: |
| { |
| count = db.delete(CARRIERS_TABLE, Telephony.Carriers._ID + "=?", |
| new String[] { url.getLastPathSegment() }); |
| break; |
| } |
| |
| case URL_RESTOREAPN: { |
| count = 1; |
| restoreDefaultAPN(); |
| break; |
| } |
| |
| case URL_PREFERAPN: |
| { |
| setPreferredApnId((long)-1); |
| count = 1; |
| break; |
| } |
| |
| default: { |
| throw new UnsupportedOperationException("Cannot delete that URL: " + url); |
| } |
| } |
| |
| if (count > 0) { |
| getContext().getContentResolver().notifyChange(Telephony.Carriers.CONTENT_URI, null); |
| } |
| |
| return count; |
| } |
| |
| @Override |
| public int update(Uri url, ContentValues values, String where, String[] whereArgs) |
| { |
| int count = 0; |
| |
| checkPermission(); |
| |
| SQLiteDatabase db = mOpenHelper.getWritableDatabase(); |
| int match = s_urlMatcher.match(url); |
| switch (match) |
| { |
| case URL_TELEPHONY: |
| { |
| count = db.update(CARRIERS_TABLE, values, where, whereArgs); |
| break; |
| } |
| |
| case URL_CURRENT: |
| { |
| count = db.update(CARRIERS_TABLE, values, where, whereArgs); |
| break; |
| } |
| |
| case URL_ID: |
| { |
| if (where != null || whereArgs != null) { |
| throw new UnsupportedOperationException( |
| "Cannot update URL " + url + " with a where clause"); |
| } |
| count = db.update(CARRIERS_TABLE, values, Telephony.Carriers._ID + "=?", |
| new String[] { url.getLastPathSegment() }); |
| break; |
| } |
| |
| case URL_PREFERAPN: |
| { |
| if (values != null) { |
| if (values.containsKey(COLUMN_APN_ID)) { |
| setPreferredApnId(values.getAsLong(COLUMN_APN_ID)); |
| count = 1; |
| } |
| } |
| break; |
| } |
| |
| default: { |
| throw new UnsupportedOperationException("Cannot update that URL: " + url); |
| } |
| } |
| |
| if (count > 0) { |
| getContext().getContentResolver().notifyChange(Telephony.Carriers.CONTENT_URI, null); |
| } |
| |
| return count; |
| } |
| |
| private void checkPermission() { |
| // Check the permissions |
| getContext().enforceCallingOrSelfPermission("android.permission.WRITE_APN_SETTINGS", |
| "No permission to write APN settings"); |
| } |
| |
| private SQLiteOpenHelper mOpenHelper; |
| |
| private void restoreDefaultAPN() { |
| SQLiteDatabase db = mOpenHelper.getWritableDatabase(); |
| |
| db.delete(CARRIERS_TABLE, null, null); |
| setPreferredApnId((long)-1); |
| ((DatabaseHelper) mOpenHelper).initDatabase(db); |
| } |
| } |