1package eu.siacs.conversations.ui;
2
3import android.app.ActionBar;
4import android.content.Intent;
5import android.os.Bundle;
6import android.util.Log;
7import android.view.Gravity;
8import android.view.Menu;
9import android.view.MenuItem;
10import android.view.View;
11import android.view.View.OnClickListener;
12import android.widget.Button;
13import android.widget.CompoundButton;
14import android.widget.LinearLayout;
15import android.widget.TextView;
16import android.widget.Toast;
17
18import com.google.zxing.integration.android.IntentIntegrator;
19import com.google.zxing.integration.android.IntentResult;
20
21import org.whispersystems.libaxolotl.IdentityKey;
22
23import java.util.ArrayList;
24import java.util.Arrays;
25import java.util.HashMap;
26import java.util.List;
27import java.util.Map;
28import java.util.Set;
29
30import eu.siacs.conversations.Config;
31import eu.siacs.conversations.OmemoActivity;
32import eu.siacs.conversations.R;
33import eu.siacs.conversations.crypto.axolotl.AxolotlService;
34import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
35import eu.siacs.conversations.entities.Account;
36import eu.siacs.conversations.entities.Conversation;
37import eu.siacs.conversations.utils.XmppUri;
38import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
39import eu.siacs.conversations.xmpp.jid.InvalidJidException;
40import eu.siacs.conversations.xmpp.jid.Jid;
41
42public class TrustKeysActivity extends OmemoActivity implements OnKeyStatusUpdated {
43 private List<Jid> contactJids;
44
45 private Account mAccount;
46 private Conversation mConversation;
47 private TextView keyErrorMessage;
48 private LinearLayout keyErrorMessageCard;
49 private TextView ownKeysTitle;
50 private LinearLayout ownKeys;
51 private LinearLayout ownKeysCard;
52 private LinearLayout foreignKeys;
53 private Button mSaveButton;
54 private Button mCancelButton;
55
56 private AxolotlService.FetchStatus lastFetchReport = AxolotlService.FetchStatus.SUCCESS;
57
58 private final Map<String, Boolean> ownKeysToTrust = new HashMap<>();
59 private final Map<Jid,Map<String, Boolean>> foreignKeysToTrust = new HashMap<>();
60
61 private final OnClickListener mSaveButtonListener = new OnClickListener() {
62 @Override
63 public void onClick(View v) {
64 commitTrusts();
65 finishOk();
66 }
67 };
68
69 private final OnClickListener mCancelButtonListener = new OnClickListener() {
70 @Override
71 public void onClick(View v) {
72 setResult(RESULT_CANCELED);
73 finish();
74 }
75 };
76 private Toast mUseCameraHintToast = null;
77
78 @Override
79 protected void refreshUiReal() {
80 invalidateOptionsMenu();
81 populateView();
82 }
83
84 @Override
85 protected void onCreate(final Bundle savedInstanceState) {
86 super.onCreate(savedInstanceState);
87 setContentView(R.layout.activity_trust_keys);
88 this.contactJids = new ArrayList<>();
89 for(String jid : getIntent().getStringArrayExtra("contacts")) {
90 try {
91 this.contactJids.add(Jid.fromString(jid));
92 } catch (InvalidJidException e) {
93 e.printStackTrace();
94 }
95 }
96
97 keyErrorMessageCard = (LinearLayout) findViewById(R.id.key_error_message_card);
98 keyErrorMessage = (TextView) findViewById(R.id.key_error_message);
99 ownKeysTitle = (TextView) findViewById(R.id.own_keys_title);
100 ownKeys = (LinearLayout) findViewById(R.id.own_keys_details);
101 ownKeysCard = (LinearLayout) findViewById(R.id.own_keys_card);
102 foreignKeys = (LinearLayout) findViewById(R.id.foreign_keys);
103 mCancelButton = (Button) findViewById(R.id.cancel_button);
104 mCancelButton.setOnClickListener(mCancelButtonListener);
105 mSaveButton = (Button) findViewById(R.id.save_button);
106 mSaveButton.setOnClickListener(mSaveButtonListener);
107
108
109 if (getActionBar() != null) {
110 getActionBar().setHomeButtonEnabled(true);
111 getActionBar().setDisplayHomeAsUpEnabled(true);
112 }
113 }
114
115 @Override
116 public boolean onCreateOptionsMenu(Menu menu) {
117 getMenuInflater().inflate(R.menu.trust_keys, menu);
118 mUseCameraHintToast = Toast.makeText(this,R.string.use_camera_icon_to_scan_barcode,Toast.LENGTH_LONG);
119 ActionBar actionBar = getActionBar();
120 mUseCameraHintToast.setGravity(Gravity.TOP | Gravity.END, 0 ,actionBar == null ? 0 : actionBar.getHeight());
121 mUseCameraHintToast.show();
122 return super.onCreateOptionsMenu(menu);
123 }
124
125 @Override
126 public boolean onOptionsItemSelected(MenuItem item) {
127 switch (item.getItemId()) {
128 case R.id.action_scan_qr_code:
129 if (hasPendingKeyFetches()) {
130 Toast.makeText(this, R.string.please_wait_for_keys_to_be_fetched, Toast.LENGTH_SHORT).show();
131 } else {
132 new IntentIntegrator(this).initiateScan(Arrays.asList("AZTEC","QR_CODE"));
133 return true;
134 }
135 }
136 return super.onOptionsItemSelected(item);
137 }
138
139 @Override
140 protected void onStop() {
141 super.onStop();
142 if (mUseCameraHintToast != null) {
143 mUseCameraHintToast.cancel();
144 }
145 }
146
147 @Override
148 protected void processFingerprintVerification(XmppUri uri) {
149 if (mConversation != null
150 && mAccount != null
151 && uri.hasFingerprints()
152 && mAccount.getAxolotlService().getCryptoTargets(mConversation).contains(uri.getJid())) {
153 boolean performedVerification = xmppConnectionService.verifyFingerprints(mAccount.getRoster().getContact(uri.getJid()),uri.getFingerprints());
154 boolean keys = reloadFingerprints();
155 if (performedVerification && !keys && !hasNoOtherTrustedKeys() && !hasPendingKeyFetches()) {
156 Toast.makeText(this,R.string.all_omemo_keys_have_been_verified, Toast.LENGTH_SHORT).show();
157 finishOk();
158 return;
159 } else if (performedVerification) {
160 Toast.makeText(this,R.string.verified_fingerprints,Toast.LENGTH_SHORT).show();
161 }
162 } else {
163 reloadFingerprints();
164 Log.d(Config.LOGTAG,"xmpp uri was: "+uri.getJid()+" has Fingerprints: "+Boolean.toString(uri.hasFingerprints()));
165 Toast.makeText(this,R.string.barcode_does_not_contain_fingerprints_for_this_conversation,Toast.LENGTH_SHORT).show();
166 }
167 populateView();
168 }
169
170 private void populateView() {
171 setTitle(getString(R.string.trust_omemo_fingerprints));
172 ownKeys.removeAllViews();
173 foreignKeys.removeAllViews();
174 boolean hasOwnKeys = false;
175 boolean hasForeignKeys = false;
176 for(final String fingerprint : ownKeysToTrust.keySet()) {
177 hasOwnKeys = true;
178 addFingerprintRowWithListeners(ownKeys, mAccount, fingerprint, false,
179 FingerprintStatus.createActive(ownKeysToTrust.get(fingerprint)), false, false,
180 new CompoundButton.OnCheckedChangeListener() {
181 @Override
182 public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
183 ownKeysToTrust.put(fingerprint, isChecked);
184 // own fingerprints have no impact on locked status.
185 }
186 }
187 );
188 }
189
190 synchronized (this.foreignKeysToTrust) {
191 for (Map.Entry<Jid, Map<String, Boolean>> entry : foreignKeysToTrust.entrySet()) {
192 hasForeignKeys = true;
193 final LinearLayout layout = (LinearLayout) getLayoutInflater().inflate(R.layout.keys_card, foreignKeys, false);
194 final Jid jid = entry.getKey();
195 final TextView header = (TextView) layout.findViewById(R.id.foreign_keys_title);
196 final LinearLayout keysContainer = (LinearLayout) layout.findViewById(R.id.foreign_keys_details);
197 final TextView informNoKeys = (TextView) layout.findViewById(R.id.no_keys_to_accept);
198 header.setText(jid.toString());
199 final Map<String, Boolean> fingerprints = entry.getValue();
200 for (final String fingerprint : fingerprints.keySet()) {
201 addFingerprintRowWithListeners(keysContainer, mAccount, fingerprint, false,
202 FingerprintStatus.createActive(fingerprints.get(fingerprint)), false, false,
203 new CompoundButton.OnCheckedChangeListener() {
204 @Override
205 public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
206 fingerprints.put(fingerprint, isChecked);
207 lockOrUnlockAsNeeded();
208 }
209 }
210 );
211 }
212 if (fingerprints.size() == 0) {
213 informNoKeys.setVisibility(View.VISIBLE);
214 informNoKeys.setText(getString(R.string.no_keys_just_confirm,mAccount.getRoster().getContact(jid).getDisplayName()));
215 } else {
216 informNoKeys.setVisibility(View.GONE);
217 }
218 foreignKeys.addView(layout);
219 }
220 }
221
222 ownKeysTitle.setText(mAccount.getJid().toBareJid().toString());
223 ownKeysCard.setVisibility(hasOwnKeys ? View.VISIBLE : View.GONE);
224 foreignKeys.setVisibility(hasForeignKeys ? View.VISIBLE : View.GONE);
225 if(hasPendingKeyFetches()) {
226 setFetching();
227 lock();
228 } else {
229 if (!hasForeignKeys && hasNoOtherTrustedKeys()) {
230 keyErrorMessageCard.setVisibility(View.VISIBLE);
231 if (lastFetchReport == AxolotlService.FetchStatus.ERROR
232 || mAccount.getAxolotlService().fetchMapHasErrors(contactJids)) {
233 keyErrorMessage.setText(R.string.error_no_keys_to_trust_server_error);
234 } else {
235 keyErrorMessage.setText(R.string.error_no_keys_to_trust);
236 }
237 ownKeys.removeAllViews();
238 ownKeysCard.setVisibility(View.GONE);
239 foreignKeys.removeAllViews();
240 foreignKeys.setVisibility(View.GONE);
241 }
242 lockOrUnlockAsNeeded();
243 setDone();
244 }
245 }
246
247 private boolean reloadFingerprints() {
248 List<Jid> acceptedTargets = mConversation == null ? new ArrayList<Jid>() : mConversation.getAcceptedCryptoTargets();
249 ownKeysToTrust.clear();
250 AxolotlService service = this.mAccount.getAxolotlService();
251 Set<IdentityKey> ownKeysSet = service.getKeysWithTrust(FingerprintStatus.createActiveUndecided());
252 for(final IdentityKey identityKey : ownKeysSet) {
253 if(!ownKeysToTrust.containsKey(identityKey)) {
254 ownKeysToTrust.put(identityKey.getFingerprint().replaceAll("\\s", ""), false);
255 }
256 }
257 synchronized (this.foreignKeysToTrust) {
258 foreignKeysToTrust.clear();
259 for (Jid jid : contactJids) {
260 Set<IdentityKey> foreignKeysSet = service.getKeysWithTrust(FingerprintStatus.createActiveUndecided(), jid);
261 if (hasNoOtherTrustedKeys(jid) && ownKeysSet.size() == 0) {
262 foreignKeysSet.addAll(service.getKeysWithTrust(FingerprintStatus.createActive(false), jid));
263 }
264 Map<String, Boolean> foreignFingerprints = new HashMap<>();
265 for (final IdentityKey identityKey : foreignKeysSet) {
266 if (!foreignFingerprints.containsKey(identityKey)) {
267 foreignFingerprints.put(identityKey.getFingerprint().replaceAll("\\s", ""), false);
268 }
269 }
270 if (foreignFingerprints.size() > 0 || !acceptedTargets.contains(jid)) {
271 foreignKeysToTrust.put(jid, foreignFingerprints);
272 }
273 }
274 }
275 return ownKeysSet.size() + foreignKeysToTrust.size() > 0;
276 }
277
278 public void onBackendConnected() {
279 Intent intent = getIntent();
280 this.mAccount = extractAccount(intent);
281 if (this.mAccount != null && intent != null) {
282 String uuid = intent.getStringExtra("conversation");
283 this.mConversation = xmppConnectionService.findConversationByUuid(uuid);
284 if (this.mPendingFingerprintVerificationUri != null) {
285 processFingerprintVerification(this.mPendingFingerprintVerificationUri);
286 this.mPendingFingerprintVerificationUri = null;
287 } else {
288 reloadFingerprints();
289 populateView();
290 }
291 }
292 }
293
294 private boolean hasNoOtherTrustedKeys() {
295 return mAccount == null || mAccount.getAxolotlService().anyTargetHasNoTrustedKeys(contactJids);
296 }
297
298 private boolean hasNoOtherTrustedKeys(Jid contact) {
299 return mAccount == null || mAccount.getAxolotlService().getNumTrustedKeys(contact) == 0;
300 }
301
302 private boolean hasPendingKeyFetches() {
303 return mAccount != null && mAccount.getAxolotlService().hasPendingKeyFetches(mAccount, contactJids);
304 }
305
306
307 @Override
308 public void onKeyStatusUpdated(final AxolotlService.FetchStatus report) {
309 final boolean keysToTrust = reloadFingerprints();
310 if (report != null) {
311 lastFetchReport = report;
312 runOnUiThread(new Runnable() {
313 @Override
314 public void run() {
315 if (mUseCameraHintToast != null && !keysToTrust) {
316 mUseCameraHintToast.cancel();
317 }
318 switch (report) {
319 case ERROR:
320 Toast.makeText(TrustKeysActivity.this,R.string.error_fetching_omemo_key,Toast.LENGTH_SHORT).show();
321 break;
322 case SUCCESS_TRUSTED:
323 Toast.makeText(TrustKeysActivity.this,R.string.blindly_trusted_omemo_keys,Toast.LENGTH_LONG).show();
324 break;
325 case SUCCESS_VERIFIED:
326 Toast.makeText(TrustKeysActivity.this,
327 Config.X509_VERIFICATION ? R.string.verified_omemo_key_with_certificate : R.string.all_omemo_keys_have_been_verified,
328 Toast.LENGTH_LONG).show();
329 break;
330 }
331 }
332 });
333
334 }
335 if (keysToTrust || hasPendingKeyFetches() || hasNoOtherTrustedKeys()) {
336 refreshUi();
337 } else {
338 runOnUiThread(new Runnable() {
339 @Override
340 public void run() {
341 finishOk();
342 }
343 });
344
345 }
346 }
347
348 private void finishOk() {
349 Intent data = new Intent();
350 data.putExtra("choice", getIntent().getIntExtra("choice", ConversationActivity.ATTACHMENT_CHOICE_INVALID));
351 setResult(RESULT_OK, data);
352 finish();
353 }
354
355 private void commitTrusts() {
356 for(final String fingerprint :ownKeysToTrust.keySet()) {
357 mAccount.getAxolotlService().setFingerprintTrust(
358 fingerprint,
359 FingerprintStatus.createActive(ownKeysToTrust.get(fingerprint)));
360 }
361 List<Jid> acceptedTargets = mConversation == null ? new ArrayList<Jid>() : mConversation.getAcceptedCryptoTargets();
362 synchronized (this.foreignKeysToTrust) {
363 for (Map.Entry<Jid, Map<String, Boolean>> entry : foreignKeysToTrust.entrySet()) {
364 Jid jid = entry.getKey();
365 Map<String, Boolean> value = entry.getValue();
366 if (!acceptedTargets.contains(jid)) {
367 acceptedTargets.add(jid);
368 }
369 for (final String fingerprint : value.keySet()) {
370 mAccount.getAxolotlService().setFingerprintTrust(
371 fingerprint,
372 FingerprintStatus.createActive(value.get(fingerprint)));
373 }
374 }
375 }
376 if (mConversation != null && mConversation.getMode() == Conversation.MODE_MULTI) {
377 mConversation.setAcceptedCryptoTargets(acceptedTargets);
378 xmppConnectionService.updateConversation(mConversation);
379 }
380 }
381
382 private void unlock() {
383 mSaveButton.setEnabled(true);
384 mSaveButton.setTextColor(getPrimaryTextColor());
385 }
386
387 private void lock() {
388 mSaveButton.setEnabled(false);
389 mSaveButton.setTextColor(getSecondaryTextColor());
390 }
391
392 private void lockOrUnlockAsNeeded() {
393 synchronized (this.foreignKeysToTrust) {
394 for (Jid jid : contactJids) {
395 Map<String, Boolean> fingerprints = foreignKeysToTrust.get(jid);
396 if (hasNoOtherTrustedKeys(jid) && (fingerprints == null || !fingerprints.values().contains(true))) {
397 lock();
398 return;
399 }
400 }
401 }
402 unlock();
403
404 }
405
406 private void setDone() {
407 mSaveButton.setText(getString(R.string.done));
408 }
409
410 private void setFetching() {
411 mSaveButton.setText(getString(R.string.fetching_keys));
412 }
413}