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