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Avoid leaking cursor.

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// FREEBIE

Closes #1838
This commit is contained in:
Moxie Marlinspike 2014-08-20 10:35:02 -07:00
parent 7f51f9fd5b
commit 5264ebed67
1 changed files with 34 additions and 26 deletions
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18
src/org/thoughtcrime/securesms/database/ApnDatabase.java
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@ -37,6 +37,7 @@ import java.security.InvalidParameterException;
*/
public class ApnDatabase {
private static final String TAG = ApnDatabase.class.getSimpleName();
private final SQLiteDatabase db;
private static final String DATABASE_NAME = "apns.db";
@ -77,6 +78,7 @@ public class ApnDatabase {
private ApnDatabase(final Context context) throws IOException {
File dbFile = context.getDatabasePath(DATABASE_NAME);
if (!dbFile.getParentFile().exists() && !dbFile.getParentFile().mkdir()) {
throw new IOException("couldn't make databases directory");
}
@ -84,21 +86,24 @@ public class ApnDatabase {
Util.copy(context.getAssets().open(ASSET_PATH, AssetManager.ACCESS_STREAMING),
new FileOutputStream(dbFile));
db = SQLiteDatabase.openDatabase(context.getDatabasePath(DATABASE_NAME).getPath(),
this.db = SQLiteDatabase.openDatabase(context.getDatabasePath(DATABASE_NAME).getPath(),
null, SQLiteDatabase.OPEN_READONLY);
}
public MmsCommunication.MmsConnectionParameters getMmsConnectionParameters(final String mccmnc, final String apn) {
public MmsCommunication.MmsConnectionParameters getMmsConnectionParameters(final String mccmnc,
final String apn)
{
if (mccmnc == null) throw new InvalidParameterException("mccmnc must not be null");
Cursor cursor = null;
try {
if (apn != null) {
Log.w(TAG, "Querying table for MCC+MNC " + mccmnc + " and APN name " + apn);
cursor = db.query(TABLE_NAME, null,
BASE_SELECTION + " AND " + APN_COLUMN + " = ?",
new String[]{ mccmnc, apn },
new String[] {mccmnc, apn},
null, null, null);
}
@ -106,7 +111,7 @@ public class ApnDatabase {
Log.w(TAG, "Querying table for MCC+MNC " + mccmnc + " without APN name");
cursor = db.query(TABLE_NAME, null,
BASE_SELECTION,
new String[]{ mccmnc },
new String[] {mccmnc},
null, null, null);
}
@ -114,11 +119,14 @@ public class ApnDatabase {
MmsConnectionParameters params = new MmsConnectionParameters(cursor.getString(cursor.getColumnIndexOrThrow(MMSC_COLUMN)),
cursor.getString(cursor.getColumnIndexOrThrow(MMS_PROXY_COLUMN)),
cursor.getString(cursor.getColumnIndexOrThrow(MMS_PORT_COLUMN)));
Log.w(TAG, "returning preferred APN " + params.get().get(0));
Log.w(TAG, "Returning preferred APN " + params.get().get(0));
return params;
}
Log.w(TAG, "No matching APNs found, returning null");
return null;
} finally {
if (cursor != null) cursor.close();
}
}
}