private void loadBlockedDomainsList(@NonNull final Context context) {
BrowserApp.getTaskThread()
.execute(
new Runnable() {
@Override
public void run() {
AssetManager asset = context.getAssets();
BufferedReader reader = null;
try {
//noinspection IOResourceOpenedButNotSafelyClosed
reader =
new BufferedReader(
new InputStreamReader(asset.open(BLOCKED_DOMAINS_LIST_FILE_NAME)));
String line;
while ((line = reader.readLine()) != null) {
mBlockedDomainsList.add(line.trim());
}
} catch (IOException e) {
Log.wtf(
TAG,
"Reading blocked domains list from file '"
+ BLOCKED_DOMAINS_LIST_FILE_NAME
+ "' failed.",
e);
} finally {
Utils.close(reader);
}
}
});
}
@Inject
public AdBlock(@NonNull Context context) {
BrowserApp.getAppComponent().inject(this);
if (mBlockedDomainsList.isEmpty() && Constants.FULL_VERSION) {
loadHostsFile(context);
}
mBlockAds = mPreferenceManager.getAdBlockEnabled();
}
/**
* This method reads through a hosts file and extracts the domains that should be redirected to
* localhost (a.k.a. IP address 127.0.0.1). It can handle files that simply have a list of
* hostnames to block, or it can handle a full blown hosts file. It will strip out comments,
* references to the base IP address and just extract the domains to be used
*
* @param context the context needed to read the file
*/
private void loadHostsFile(@NonNull final Context context) {
BrowserApp.getTaskThread()
.execute(
new Runnable() {
@Override
public void run() {
AssetManager asset = context.getAssets();
BufferedReader reader = null;
try {
//noinspection IOResourceOpenedButNotSafelyClosed
reader =
new BufferedReader(
new InputStreamReader(asset.open(BLOCKED_DOMAINS_LIST_FILE_NAME)));
String line;
while ((line = reader.readLine()) != null) {
if (!line.isEmpty() && !line.startsWith(COMMENT)) {
line =
line.replace(LOCAL_IP_V4, EMPTY)
.replace(LOCAL_IP_V4_ALT, EMPTY)
.replace(LOCAL_IP_V6, EMPTY)
.replace(TAB, EMPTY);
int comment = line.indexOf(COMMENT);
if (comment >= 0) {
line = line.substring(0, comment);
}
line = line.trim();
if (!line.isEmpty() && !line.equals(LOCALHOST)) {
while (line.contains(SPACE)) {
int space = line.indexOf(SPACE);
String host = line.substring(0, space);
mBlockedDomainsList.add(host.trim());
line = line.substring(space, line.length()).trim();
}
mBlockedDomainsList.add(line.trim());
}
}
}
} catch (IOException e) {
Log.wtf(
TAG,
"Reading blocked domains list from file '"
+ BLOCKED_DOMAINS_LIST_FILE_NAME
+ "' failed.",
e);
} finally {
Utils.close(reader);
}
}
});
}
public TabsFragment() {
BrowserApp.getAppComponent().inject(this);
}