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@ -3,28 +3,31 @@ package acr.browser.lightning;
@@ -3,28 +3,31 @@ package acr.browser.lightning;
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import android.content.Context; |
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import android.content.SharedPreferences; |
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import android.content.res.AssetManager; |
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import android.util.Log; |
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import java.io.BufferedReader; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.InputStreamReader; |
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import java.net.URI; |
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import java.net.URISyntaxException; |
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import java.util.SortedMap; |
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import java.util.TreeMap; |
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import java.util.HashSet; |
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import java.util.Set; |
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public class AdBlock { |
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private static SortedMap<String, Integer> mAdBlockMap = |
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new TreeMap<String, Integer>(String.CASE_INSENSITIVE_ORDER); |
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private static final String TAG = "AdBlock"; |
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private static final String BLOCKED_DOMAINS_LIST_FILE_NAME = "hosts.txt"; |
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private static final Set<String> mBlockedDomainsList = new HashSet<String>(); |
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private SharedPreferences mPreferences; |
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private boolean mBlockAds; |
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public AdBlock(Context context) { |
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if (mAdBlockMap.isEmpty()) { |
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fillSearchTree(context); |
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if (mBlockedDomainsList.isEmpty()) { |
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loadBlockedDomainsList(context); |
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} |
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mPreferences = context.getSharedPreferences( |
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PreferenceConstants.PREFERENCES, 0); |
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@ -37,27 +40,24 @@ public class AdBlock {
@@ -37,27 +40,24 @@ public class AdBlock {
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false); |
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} |
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public void fillSearchTree(final Context context) { |
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private void loadBlockedDomainsList(final Context context) { |
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Thread thread = new Thread(new Runnable() { |
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@Override |
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public void run() { |
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AssetManager asset = context.getAssets(); |
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try { |
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InputStream input = asset.open("hosts.txt"); |
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InputStreamReader read = new InputStreamReader(input); |
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BufferedReader reader = new BufferedReader(read); |
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String line = reader.readLine(); |
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while (line != null) { |
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mAdBlockMap.put(line, 1); |
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line = reader.readLine(); |
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BufferedReader reader = new BufferedReader( |
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new InputStreamReader(asset.open(BLOCKED_DOMAINS_LIST_FILE_NAME))); |
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String line; |
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while ((line = reader.readLine()) != null) { |
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mBlockedDomainsList.add(line.trim().toLowerCase()); |
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} |
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} catch (IOException e) { |
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e.printStackTrace(); |
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Log.wtf(TAG, "Reading blocked domains list from file '" + |
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BLOCKED_DOMAINS_LIST_FILE_NAME + "' failed.", e); |
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} |
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} |
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}); |
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thread.start(); |
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} |
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@ -66,14 +66,20 @@ public class AdBlock {
@@ -66,14 +66,20 @@ public class AdBlock {
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if (!mBlockAds) { |
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return false; |
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} |
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String domain; |
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try { |
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domain = getDomainName(url); |
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} catch (URISyntaxException e) { |
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e.printStackTrace(); |
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Log.e(TAG, "URL '" + url + "' is invalid", e); |
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return false; |
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} |
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return mAdBlockMap.containsKey(domain); |
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boolean isOnBlacklist = mBlockedDomainsList.contains(domain.toLowerCase()); |
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if (isOnBlacklist) { |
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Log.d(TAG, "URL '" + url + "' is an ad"); |
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} |
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return isOnBlacklist; |
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} |
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private static String getDomainName(String url) throws URISyntaxException { |
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@ -81,11 +87,13 @@ public class AdBlock {
@@ -81,11 +87,13 @@ public class AdBlock {
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if (index != -1) { |
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url = url.substring(0, index); |
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} |
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URI uri = new URI(url); |
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String domain = uri.getHost(); |
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if (domain == null) { |
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return url; |
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} |
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return domain.startsWith("www.") ? domain.substring(4) : domain; |
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} |
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} |
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