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Code Issues Releases Wiki Activity

Simplify getQName

This commit is contained in:
M66B 2019-02-27 08:00:35 +00:00
parent 0b8646acf0
commit 7f966920e6
1 changed files with 2 additions and 5 deletions
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7
app/src/main/java/eu/faircode/netguard/DatabaseHelper.java
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@ -859,19 +859,16 @@ public class DatabaseHelper extends SQLiteOpenHelper {
}
public String getQName(int uid, String ip) {
long now = new Date().getTime();
lock.readLock().lock();
try {
SQLiteDatabase db = this.getReadableDatabase();
// There is a segmented index on resource
// There is an index on access.daddr
String query = "SELECT d.qname";
query += " FROM dns AS d";
query += " LEFT JOIN access AS a";
query += " ON a.daddr = d.qname AND a.uid = " + uid;
query += " WHERE d.resource = '" + ip.replace("'", "''") + "'";
query += " ORDER BY CASE WHEN a.daddr IS NULL THEN 1 ELSE 0 END, d.qname";
query += " ORDER BY d.qname";
query += " LIMIT 1";
// There is no way to known for sure which domain name an app used, so just pick the first one
return db.compileStatement(query).simpleQueryForString();
} catch (SQLiteDoneException ignored) {
// Not found