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