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Add "Enable legacy SSL" preference

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This commit is contained in:
Sam Whited 2014-10-19 15:53:03 -04:00
parent 113b7d1736
commit 6c7c3ddf15
3 changed files with 43 additions and 14 deletions
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6
res/values/strings.xml
View file

@ -249,8 +249,10 @@
<string name="pref_force_encryption">Force end-to-end encryption</string>
<string name="pref_force_encryption_summary">Always send messages encrypted (except for conferences)</string>
<string name="pref_dont_save_encrypted">Don’t save encrypted messages</string>
<string name="pref_dont_save_encrypted_summary">Warning: This could lead to message loss</string>
<string name="pref_expert_options">Expert options</string>
<string name="pref_dont_save_encrypted_summary">Warning: This could lead to message loss</string>
<string name="pref_enable_legacy_ssl">Enable legacy SSL</string>
<string name="pref_enable_legacy_ssl_summary">Enables SSLv3 support for legacy servers. Warning: SSLv3 is considered insecure.</string>
<string name="pref_expert_options">Expert options</string>
<string name="pref_expert_options_summary">Please be very careful with those</string>
<string name="pref_use_larger_font">Increase font size</string>
<string name="pref_use_larger_font_summary">Use larger font sizes across the entire app</string>

5
res/xml/preferences.xml
View file

@ -88,6 +88,11 @@
android:key="dont_save_encrypted"
android:summary="@string/pref_dont_save_encrypted_summary"
android:title="@string/pref_dont_save_encrypted" />
<CheckBoxPreference
android:defaultValue="true"
android:key="enable_legacy_ssl"
android:summary="@string/pref_enable_legacy_ssl_summary"
android:title="@string/pref_enable_legacy_ssl" />
</PreferenceCategory>
<PreferenceCategory android:title="@string/pref_expert_options_other" >
<CheckBoxPreference

44
src/eu/siacs/conversations/xmpp/XmppConnection.java
View file

@ -13,6 +13,7 @@ import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.LinkedList;
import java.util.List;
import java.util.Map.Entry;
@ -27,15 +28,19 @@ import org.xmlpull.v1.XmlPullParserException;
import de.duenndns.ssl.MemorizingTrustManager;
import android.content.Context;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.PowerManager;
import android.os.PowerManager.WakeLock;
import android.os.SystemClock;
import android.preference.PreferenceManager;
import android.util.Log;
import android.util.SparseArray;
import eu.siacs.conversations.Config;
import eu.siacs.conversations.entities.Account;
import eu.siacs.conversations.services.XmppConnectionService;
import eu.siacs.conversations.ui.StartConversationActivity;
import eu.siacs.conversations.utils.CryptoHelper;
import eu.siacs.conversations.utils.DNSHelper;
import eu.siacs.conversations.utils.zlib.ZLibOutputStream;
@ -105,6 +110,7 @@ public class XmppConnection implements Runnable {
private OnBindListener bindListener = null;
private OnMessageAcknowledged acknowledgedListener = null;
private MemorizingTrustManager mMemorizingTrustManager;
private final Context applicationContext;
public XmppConnection(Account account, XmppConnectionService service) {
this.mRandom = service.getRNG();
@ -113,6 +119,7 @@ public class XmppConnection implements Runnable {
this.wakeLock = service.getPowerManager().newWakeLock(
PowerManager.PARTIAL_WAKE_LOCK, account.getJid());
tagWriter = new TagWriter();
applicationContext = service.getApplicationContext();
}
protected void changeStatus(int nextStatus) {
@ -363,13 +370,13 @@ public class XmppConnection implements Runnable {
iq.addChild("ping", "urn:xmpp:ping");
this.sendIqPacket(iq, new OnIqPacketReceived() {
@Override
public void onIqPacketReceived(Account account, IqPacket packet) {
Log.d(Config.LOGTAG, account.getJid()
+ ": online with resource " + account.getResource());
changeStatus(Account.STATUS_ONLINE);
}
});
@Override
public void onIqPacketReceived(Account account, IqPacket packet) {
Log.d(Config.LOGTAG, account.getJid()
+ ": online with resource " + account.getResource());
changeStatus(Account.STATUS_ONLINE);
}
});
}
private Element processPacket(Tag currentTag, int packetType)
@ -505,6 +512,14 @@ public class XmppConnection implements Runnable {
tagWriter.writeTag(startTLS);
}
private SharedPreferences getPreferences() {
return PreferenceManager.getDefaultSharedPreferences(applicationContext);
}
private boolean enableLegacySSL() {
return getPreferences().getBoolean("enable_legacy_ssl", true);
}
private void switchOverToTls(Tag currentTag) throws XmlPullParserException,
IOException {
tagReader.readTag();
@ -524,10 +539,17 @@ public class XmppConnection implements Runnable {
// Support all protocols except legacy SSL.
// The min SDK version prevents us having to worry about SSLv2. In future, this may be
// true of SSLv3 as well.
final List<String> supportedProtocols = new LinkedList<String>(Arrays.asList(
sslSocket.getSupportedProtocols()));
supportedProtocols.remove("SSLv3");
sslSocket.setEnabledProtocols(supportedProtocols.toArray(new String[supportedProtocols.size()]));
final String[] supportProtocols;
if (enableLegacySSL()) {
supportProtocols = sslSocket.getSupportedProtocols();
} else {
final List<String> supportedProtocols = new LinkedList<String>(Arrays.asList(
sslSocket.getSupportedProtocols()));
supportedProtocols.remove("SSLv3");
supportProtocols = new String[supportedProtocols.size()];
supportedProtocols.toArray(supportProtocols);
}
sslSocket.setEnabledProtocols(supportProtocols);
if (verifier != null
&& !verifier.verify(account.getServer(),