fix rare npe
This commit is contained in:
Daniel Gultsch
parent
0b470534f1
commit
4129ca6af8
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@ -22,6 +22,7 @@ import java.util.List;
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import eu.siacs.conversations.Config;
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import eu.siacs.conversations.R;
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import eu.siacs.conversations.databinding.EnterJidDialogBinding;
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import eu.siacs.conversations.services.XmppConnectionService;
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import eu.siacs.conversations.ui.adapter.KnownHostsAdapter;
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import eu.siacs.conversations.ui.interfaces.OnBackendConnected;
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import eu.siacs.conversations.ui.util.DelayedHintHelper;
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@ -29,234 +30,250 @@ import eu.siacs.conversations.xmpp.Jid;
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public class EnterJidDialog extends DialogFragment implements OnBackendConnected, TextWatcher {
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private static final List<String> SUSPICIOUS_DOMAINS =
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Arrays.asList("conference", "muc", "room", "rooms", "chat");
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private static final List<String> SUSPICIOUS_DOMAINS = Arrays.asList("conference","muc","room","rooms","chat");
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private OnEnterJidDialogPositiveListener mListener = null;
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private OnEnterJidDialogPositiveListener mListener = null;
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private static final String TITLE_KEY = "title";
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private static final String POSITIVE_BUTTON_KEY = "positive_button";
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private static final String PREFILLED_JID_KEY = "prefilled_jid";
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private static final String ACCOUNT_KEY = "account";
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private static final String ALLOW_EDIT_JID_KEY = "allow_edit_jid";
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private static final String ACCOUNTS_LIST_KEY = "activated_accounts_list";
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private static final String SANITY_CHECK_JID = "sanity_check_jid";
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private static final String TITLE_KEY = "title";
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private static final String POSITIVE_BUTTON_KEY = "positive_button";
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private static final String PREFILLED_JID_KEY = "prefilled_jid";
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private static final String ACCOUNT_KEY = "account";
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private static final String ALLOW_EDIT_JID_KEY = "allow_edit_jid";
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private static final String ACCOUNTS_LIST_KEY = "activated_accounts_list";
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private static final String SANITY_CHECK_JID = "sanity_check_jid";
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private KnownHostsAdapter knownHostsAdapter;
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private Collection<String> whitelistedDomains = Collections.emptyList();
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private KnownHostsAdapter knownHostsAdapter;
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private Collection<String> whitelistedDomains = Collections.emptyList();
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private EnterJidDialogBinding binding;
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private AlertDialog dialog;
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private boolean sanityCheckJid = false;
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private EnterJidDialogBinding binding;
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private AlertDialog dialog;
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private boolean sanityCheckJid = false;
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private boolean issuedWarning = false;
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public static EnterJidDialog newInstance(
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final List<String> activatedAccounts,
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final String title,
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final String positiveButton,
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final String prefilledJid,
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final String account,
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boolean allowEditJid,
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final boolean sanity_check_jid) {
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EnterJidDialog dialog = new EnterJidDialog();
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Bundle bundle = new Bundle();
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bundle.putString(TITLE_KEY, title);
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bundle.putString(POSITIVE_BUTTON_KEY, positiveButton);
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bundle.putString(PREFILLED_JID_KEY, prefilledJid);
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bundle.putString(ACCOUNT_KEY, account);
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bundle.putBoolean(ALLOW_EDIT_JID_KEY, allowEditJid);
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bundle.putStringArrayList(ACCOUNTS_LIST_KEY, (ArrayList<String>) activatedAccounts);
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bundle.putBoolean(SANITY_CHECK_JID, sanity_check_jid);
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dialog.setArguments(bundle);
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return dialog;
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}
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private boolean issuedWarning = false;
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@Override
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public void onActivityCreated(Bundle savedInstanceState) {
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super.onActivityCreated(savedInstanceState);
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setRetainInstance(true);
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}
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public static EnterJidDialog newInstance(final List<String> activatedAccounts,
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final String title, final String positiveButton,
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final String prefilledJid, final String account,
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boolean allowEditJid, final boolean sanity_check_jid) {
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EnterJidDialog dialog = new EnterJidDialog();
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Bundle bundle = new Bundle();
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bundle.putString(TITLE_KEY, title);
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bundle.putString(POSITIVE_BUTTON_KEY, positiveButton);
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bundle.putString(PREFILLED_JID_KEY, prefilledJid);
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bundle.putString(ACCOUNT_KEY, account);
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bundle.putBoolean(ALLOW_EDIT_JID_KEY, allowEditJid);
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bundle.putStringArrayList(ACCOUNTS_LIST_KEY, (ArrayList<String>) activatedAccounts);
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bundle.putBoolean(SANITY_CHECK_JID, sanity_check_jid);
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dialog.setArguments(bundle);
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return dialog;
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}
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@Override
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public void onStart() {
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super.onStart();
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final Activity activity = getActivity();
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if (activity instanceof XmppActivity
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&& ((XmppActivity) activity).xmppConnectionService != null) {
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refreshKnownHosts();
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}
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}
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@Override
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public void onActivityCreated(Bundle savedInstanceState) {
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super.onActivityCreated(savedInstanceState);
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setRetainInstance(true);
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}
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@NonNull
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@Override
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public Dialog onCreateDialog(Bundle savedInstanceState) {
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final AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
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builder.setTitle(getArguments().getString(TITLE_KEY));
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binding =
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DataBindingUtil.inflate(
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getActivity().getLayoutInflater(), R.layout.enter_jid_dialog, null, false);
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this.knownHostsAdapter = new KnownHostsAdapter(getActivity(), R.layout.simple_list_item);
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binding.jid.setAdapter(this.knownHostsAdapter);
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binding.jid.addTextChangedListener(this);
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String prefilledJid = getArguments().getString(PREFILLED_JID_KEY);
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if (prefilledJid != null) {
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binding.jid.append(prefilledJid);
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if (!getArguments().getBoolean(ALLOW_EDIT_JID_KEY)) {
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binding.jid.setFocusable(false);
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binding.jid.setFocusableInTouchMode(false);
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binding.jid.setClickable(false);
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binding.jid.setCursorVisible(false);
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}
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}
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sanityCheckJid = getArguments().getBoolean(SANITY_CHECK_JID, false);
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@Override
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public void onStart() {
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super.onStart();
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final Activity activity = getActivity();
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if (activity instanceof XmppActivity && ((XmppActivity) activity).xmppConnectionService != null) {
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refreshKnownHosts();
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}
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}
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DelayedHintHelper.setHint(R.string.account_settings_example_jabber_id, binding.jid);
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@NonNull
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@Override
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public Dialog onCreateDialog(Bundle savedInstanceState) {
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final AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
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builder.setTitle(getArguments().getString(TITLE_KEY));
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binding = DataBindingUtil.inflate(getActivity().getLayoutInflater(), R.layout.enter_jid_dialog, null, false);
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this.knownHostsAdapter = new KnownHostsAdapter(getActivity(), R.layout.simple_list_item);
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binding.jid.setAdapter(this.knownHostsAdapter);
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binding.jid.addTextChangedListener(this);
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String prefilledJid = getArguments().getString(PREFILLED_JID_KEY);
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if (prefilledJid != null) {
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binding.jid.append(prefilledJid);
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if (!getArguments().getBoolean(ALLOW_EDIT_JID_KEY)) {
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binding.jid.setFocusable(false);
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binding.jid.setFocusableInTouchMode(false);
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binding.jid.setClickable(false);
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binding.jid.setCursorVisible(false);
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}
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}
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sanityCheckJid = getArguments().getBoolean(SANITY_CHECK_JID, false);
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String account = getArguments().getString(ACCOUNT_KEY);
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if (account == null) {
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StartConversationActivity.populateAccountSpinner(
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getActivity(),
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getArguments().getStringArrayList(ACCOUNTS_LIST_KEY),
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binding.account);
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} else {
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ArrayAdapter<String> adapter =
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new ArrayAdapter<>(
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getActivity(), R.layout.simple_list_item, new String[] {account});
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binding.account.setEnabled(false);
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adapter.setDropDownViewResource(R.layout.simple_list_item);
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binding.account.setAdapter(adapter);
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}
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DelayedHintHelper.setHint(R.string.account_settings_example_jabber_id, binding.jid);
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builder.setView(binding.getRoot());
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builder.setNegativeButton(R.string.cancel, null);
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builder.setPositiveButton(getArguments().getString(POSITIVE_BUTTON_KEY), null);
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this.dialog = builder.create();
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String account = getArguments().getString(ACCOUNT_KEY);
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if (account == null) {
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StartConversationActivity.populateAccountSpinner(getActivity(), getArguments().getStringArrayList(ACCOUNTS_LIST_KEY), binding.account);
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} else {
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ArrayAdapter<String> adapter = new ArrayAdapter<>(getActivity(),
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R.layout.simple_list_item,
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new String[]{account});
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binding.account.setEnabled(false);
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adapter.setDropDownViewResource(R.layout.simple_list_item);
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binding.account.setAdapter(adapter);
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}
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View.OnClickListener dialogOnClick =
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v -> {
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handleEnter(binding, account);
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};
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binding.jid.setOnEditorActionListener(
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(v, actionId, event) -> {
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handleEnter(binding, account);
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return true;
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});
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dialog.show();
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dialog.getButton(AlertDialog.BUTTON_POSITIVE).setOnClickListener(dialogOnClick);
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return dialog;
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}
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builder.setView(binding.getRoot());
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builder.setNegativeButton(R.string.cancel, null);
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builder.setPositiveButton(getArguments().getString(POSITIVE_BUTTON_KEY), null);
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this.dialog = builder.create();
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private void handleEnter(EnterJidDialogBinding binding, String account) {
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final Jid accountJid;
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if (!binding.account.isEnabled() && account == null) {
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return;
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}
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try {
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if (Config.DOMAIN_LOCK != null) {
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accountJid =
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Jid.ofEscaped(
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(String) binding.account.getSelectedItem(),
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Config.DOMAIN_LOCK,
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null);
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} else {
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accountJid = Jid.ofEscaped((String) binding.account.getSelectedItem());
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}
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} catch (final IllegalArgumentException e) {
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return;
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}
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final Jid contactJid;
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try {
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contactJid = Jid.ofEscaped(binding.jid.getText().toString());
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} catch (final IllegalArgumentException e) {
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binding.jidLayout.setError(getActivity().getString(R.string.invalid_jid));
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return;
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}
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View.OnClickListener dialogOnClick = v -> {
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handleEnter(binding, account);
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};
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if (!issuedWarning && sanityCheckJid) {
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if (contactJid.isDomainJid()) {
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binding.jidLayout.setError(
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getActivity().getString(R.string.this_looks_like_a_domain));
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dialog.getButton(AlertDialog.BUTTON_POSITIVE).setText(R.string.add_anway);
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issuedWarning = true;
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return;
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}
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if (suspiciousSubDomain(contactJid.getDomain().toEscapedString())) {
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binding.jidLayout.setError(
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getActivity().getString(R.string.this_looks_like_channel));
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dialog.getButton(AlertDialog.BUTTON_POSITIVE).setText(R.string.add_anway);
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issuedWarning = true;
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return;
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}
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}
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binding.jid.setOnEditorActionListener((v, actionId, event) -> {
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handleEnter(binding, account);
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return true;
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});
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if (mListener != null) {
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try {
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if (mListener.onEnterJidDialogPositive(accountJid, contactJid)) {
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dialog.dismiss();
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}
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} catch (JidError error) {
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binding.jidLayout.setError(error.toString());
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dialog.getButton(AlertDialog.BUTTON_POSITIVE).setText(R.string.add);
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issuedWarning = false;
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}
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}
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}
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dialog.show();
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dialog.getButton(AlertDialog.BUTTON_POSITIVE).setOnClickListener(dialogOnClick);
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return dialog;
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}
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public void setOnEnterJidDialogPositiveListener(OnEnterJidDialogPositiveListener listener) {
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this.mListener = listener;
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}
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private void handleEnter(EnterJidDialogBinding binding, String account) {
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final Jid accountJid;
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if (!binding.account.isEnabled() && account == null) {
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return;
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}
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try {
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if (Config.DOMAIN_LOCK != null) {
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accountJid = Jid.ofEscaped((String) binding.account.getSelectedItem(), Config.DOMAIN_LOCK, null);
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} else {
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accountJid = Jid.ofEscaped((String) binding.account.getSelectedItem());
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}
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} catch (final IllegalArgumentException e) {
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return;
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}
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final Jid contactJid;
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try {
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contactJid = Jid.ofEscaped(binding.jid.getText().toString());
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} catch (final IllegalArgumentException e) {
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binding.jidLayout.setError(getActivity().getString(R.string.invalid_jid));
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return;
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}
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@Override
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public void onBackendConnected() {
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refreshKnownHosts();
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}
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if (!issuedWarning && sanityCheckJid) {
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if (contactJid.isDomainJid()) {
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binding.jidLayout.setError(getActivity().getString(R.string.this_looks_like_a_domain));
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dialog.getButton(AlertDialog.BUTTON_POSITIVE).setText(R.string.add_anway);
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issuedWarning = true;
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return;
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}
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if (suspiciousSubDomain(contactJid.getDomain().toEscapedString())) {
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binding.jidLayout.setError(getActivity().getString(R.string.this_looks_like_channel));
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dialog.getButton(AlertDialog.BUTTON_POSITIVE).setText(R.string.add_anway);
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issuedWarning = true;
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return;
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}
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}
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private void refreshKnownHosts() {
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final Activity activity = getActivity();
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if (activity instanceof XmppActivity) {
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final XmppConnectionService service = ((XmppActivity) activity).xmppConnectionService;
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if (service == null) {
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return;
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}
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final Collection<String> hosts = service.getKnownHosts();
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this.knownHostsAdapter.refresh(hosts);
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this.whitelistedDomains = hosts;
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}
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}
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if (mListener != null) {
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try {
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if (mListener.onEnterJidDialogPositive(accountJid, contactJid)) {
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dialog.dismiss();
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}
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} catch (JidError error) {
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binding.jidLayout.setError(error.toString());
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dialog.getButton(AlertDialog.BUTTON_POSITIVE).setText(R.string.add);
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issuedWarning = false;
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}
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}
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}
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@Override
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public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
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public void setOnEnterJidDialogPositiveListener(OnEnterJidDialogPositiveListener listener) {
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this.mListener = listener;
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}
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@Override
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public void onTextChanged(CharSequence s, int start, int before, int count) {}
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@Override
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public void onBackendConnected() {
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refreshKnownHosts();
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}
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@Override
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public void afterTextChanged(Editable s) {
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if (issuedWarning) {
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dialog.getButton(AlertDialog.BUTTON_POSITIVE).setText(R.string.add);
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binding.jidLayout.setError(null);
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issuedWarning = false;
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}
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}
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private void refreshKnownHosts() {
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Activity activity = getActivity();
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if (activity instanceof XmppActivity) {
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Collection<String> hosts = ((XmppActivity) activity).xmppConnectionService.getKnownHosts();
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this.knownHostsAdapter.refresh(hosts);
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this.whitelistedDomains = hosts;
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}
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}
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public interface OnEnterJidDialogPositiveListener {
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boolean onEnterJidDialogPositive(Jid account, Jid contact) throws EnterJidDialog.JidError;
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}
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@Override
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public void beforeTextChanged(CharSequence s, int start, int count, int after) {
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public static class JidError extends Exception {
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final String msg;
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}
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public JidError(final String msg) {
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this.msg = msg;
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}
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@Override
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public void onTextChanged(CharSequence s, int start, int before, int count) {
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@NonNull
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public String toString() {
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return msg;
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}
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}
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}
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@Override
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public void onDestroyView() {
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Dialog dialog = getDialog();
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if (dialog != null && getRetainInstance()) {
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dialog.setDismissMessage(null);
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}
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super.onDestroyView();
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}
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@Override
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public void afterTextChanged(Editable s) {
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if (issuedWarning) {
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dialog.getButton(AlertDialog.BUTTON_POSITIVE).setText(R.string.add);
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binding.jidLayout.setError(null);
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issuedWarning = false;
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}
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}
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public interface OnEnterJidDialogPositiveListener {
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boolean onEnterJidDialogPositive(Jid account, Jid contact) throws EnterJidDialog.JidError;
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}
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public static class JidError extends Exception {
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final String msg;
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public JidError(final String msg) {
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this.msg = msg;
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}
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public String toString() {
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return msg;
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}
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}
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@Override
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public void onDestroyView() {
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Dialog dialog = getDialog();
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if (dialog != null && getRetainInstance()) {
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dialog.setDismissMessage(null);
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}
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super.onDestroyView();
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}
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private boolean suspiciousSubDomain(String domain) {
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if (this.whitelistedDomains.contains(domain)) {
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return false;
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}
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final String[] parts = domain.split("\\.");
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return parts.length >= 3 && SUSPICIOUS_DOMAINS.contains(parts[0]);
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}
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private boolean suspiciousSubDomain(String domain) {
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if (this.whitelistedDomains.contains(domain)) {
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return false;
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}
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final String[] parts = domain.split("\\.");
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return parts.length >= 3 && SUSPICIOUS_DOMAINS.contains(parts[0]);
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}
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}
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