1package eu.siacs.conversations.ui;
2
3import android.support.v7.app.AlertDialog;
4import android.content.Intent;
5import android.os.Bundle;
6import android.support.v4.content.ContextCompat;
7import android.support.v7.widget.SwitchCompat;
8import android.view.ContextMenu;
9import android.view.MenuItem;
10import android.view.View;
11import android.widget.CompoundButton;
12import android.widget.ImageButton;
13import android.widget.ImageView;
14import android.widget.LinearLayout;
15import android.widget.TextView;
16import android.widget.Toast;
17
18import java.security.cert.X509Certificate;
19import java.util.Arrays;
20
21import eu.siacs.conversations.Config;
22import eu.siacs.conversations.R;
23import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
24import eu.siacs.conversations.crypto.axolotl.XmppAxolotlSession;
25import eu.siacs.conversations.entities.Account;
26import eu.siacs.conversations.utils.CryptoHelper;
27import eu.siacs.conversations.utils.XmppUri;
28import eu.siacs.conversations.utils.zxing.IntentIntegrator;
29import eu.siacs.conversations.utils.zxing.IntentResult;
30
31
32public abstract class OmemoActivity extends XmppActivity {
33
34 private Account mSelectedAccount;
35 private String mSelectedFingerprint;
36
37 protected XmppUri mPendingFingerprintVerificationUri = null;
38
39 @Override
40 public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
41 super.onCreateContextMenu(menu,v,menuInfo);
42 Object account = v.getTag(R.id.TAG_ACCOUNT);
43 Object fingerprint = v.getTag(R.id.TAG_FINGERPRINT);
44 Object fingerprintStatus = v.getTag(R.id.TAG_FINGERPRINT_STATUS);
45 if (account != null
46 && fingerprint != null
47 && account instanceof Account
48 && fingerprintStatus != null
49 && fingerprint instanceof String
50 && fingerprintStatus instanceof FingerprintStatus) {
51 getMenuInflater().inflate(R.menu.omemo_key_context, menu);
52 MenuItem distrust = menu.findItem(R.id.distrust_key);
53 MenuItem verifyScan = menu.findItem(R.id.verify_scan);
54 if (this instanceof TrustKeysActivity) {
55 distrust.setVisible(false);
56 verifyScan.setVisible(false);
57 } else {
58 FingerprintStatus status = (FingerprintStatus) fingerprintStatus;
59 if (!status.isActive() || status.isVerified()) {
60 verifyScan.setVisible(false);
61 }
62 distrust.setVisible(status.isVerified() || (!status.isActive() && status.isTrusted()));
63 }
64 this.mSelectedAccount = (Account) account;
65 this.mSelectedFingerprint = (String) fingerprint;
66 }
67 }
68
69 @Override
70 public boolean onContextItemSelected(MenuItem item) {
71 switch (item.getItemId()) {
72 case R.id.distrust_key:
73 showPurgeKeyDialog(mSelectedAccount,mSelectedFingerprint);
74 break;
75 case R.id.copy_omemo_key:
76 copyOmemoFingerprint(mSelectedFingerprint);
77 break;
78 case R.id.verify_scan:
79 new IntentIntegrator(this).initiateScan(Arrays.asList("AZTEC","QR_CODE"));
80 break;
81 }
82 return true;
83 }
84
85 @Override
86 public void onActivityResult(int requestCode, int resultCode, Intent intent) {
87 IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, intent);
88 if (scanResult != null && scanResult.getFormatName() != null) {
89 String data = scanResult.getContents();
90 XmppUri uri = new XmppUri(data);
91 if (xmppConnectionServiceBound) {
92 processFingerprintVerification(uri);
93 } else {
94 this.mPendingFingerprintVerificationUri =uri;
95 }
96 }
97 }
98
99 protected abstract void processFingerprintVerification(XmppUri uri);
100
101 protected void copyOmemoFingerprint(String fingerprint) {
102 if (copyTextToClipboard(CryptoHelper.prettifyFingerprint(fingerprint.substring(2)), R.string.omemo_fingerprint)) {
103 Toast.makeText(
104 this,
105 R.string.toast_message_omemo_fingerprint,
106 Toast.LENGTH_SHORT).show();
107 }
108 }
109
110 protected void addFingerprintRow(LinearLayout keys, final XmppAxolotlSession session, boolean highlight) {
111 final Account account = session.getAccount();
112 final String fingerprint = session.getFingerprint();
113 addFingerprintRowWithListeners(keys,
114 session.getAccount(),
115 fingerprint,
116 highlight,
117 session.getTrust(),
118 true,
119 true,
120 (buttonView, isChecked) -> account.getAxolotlService().setFingerprintTrust(fingerprint, FingerprintStatus.createActive(isChecked)));
121 }
122
123 protected void addFingerprintRowWithListeners(LinearLayout keys, final Account account,
124 final String fingerprint,
125 boolean highlight,
126 FingerprintStatus status,
127 boolean showTag,
128 boolean undecidedNeedEnablement,
129 CompoundButton.OnCheckedChangeListener
130 onCheckedChangeListener) {
131 View view = getLayoutInflater().inflate(R.layout.contact_key, keys, false);
132 TextView key = view.findViewById(R.id.key);
133 TextView keyType = view.findViewById(R.id.key_type);
134 ImageButton enableUndecided = view.findViewById(R.id.button_enable_device);
135 if (Config.X509_VERIFICATION && status.getTrust() == FingerprintStatus.Trust.VERIFIED_X509) {
136 key.setOnClickListener(v -> showX509Certificate(account,fingerprint));
137 keyType.setOnClickListener(v -> showX509Certificate(account,fingerprint));
138 }
139 SwitchCompat trustToggle = view.findViewById(R.id.tgl_trust);
140 ImageView verifiedFingerprintSymbol = view.findViewById(R.id.verified_fingerprint);
141 trustToggle.setVisibility(View.VISIBLE);
142 registerForContextMenu(view);
143 view.setTag(R.id.TAG_ACCOUNT,account);
144 view.setTag(R.id.TAG_FINGERPRINT,fingerprint);
145 view.setTag(R.id.TAG_FINGERPRINT_STATUS,status);
146 boolean x509 = Config.X509_VERIFICATION && status.getTrust() == FingerprintStatus.Trust.VERIFIED_X509;
147 final View.OnClickListener toast;
148 trustToggle.setChecked(status.isTrusted());
149
150 if (status.isActive()){
151 key.setTextColor(getPrimaryTextColor());
152 keyType.setTextColor(getSecondaryTextColor());
153 if (status.isVerified()) {
154 verifiedFingerprintSymbol.setVisibility(View.VISIBLE);
155 verifiedFingerprintSymbol.setAlpha(1.0f);
156 trustToggle.setVisibility(View.GONE);
157 verifiedFingerprintSymbol.setOnClickListener(v -> replaceToast(getString(R.string.this_device_has_been_verified), false));
158 toast = null;
159 } else {
160 verifiedFingerprintSymbol.setVisibility(View.GONE);
161 trustToggle.setVisibility(View.VISIBLE);
162 trustToggle.setOnCheckedChangeListener(onCheckedChangeListener);
163 if (status.getTrust() == FingerprintStatus.Trust.UNDECIDED && undecidedNeedEnablement) {
164 enableUndecided.setVisibility(View.VISIBLE);
165 enableUndecided.setOnClickListener(v -> {
166 account.getAxolotlService().setFingerprintTrust(fingerprint,FingerprintStatus.createActive(false));
167 enableUndecided.setVisibility(View.GONE);
168 trustToggle.setVisibility(View.VISIBLE);
169 });
170 trustToggle.setVisibility(View.GONE);
171 } else {
172 trustToggle.setOnClickListener(null);
173 trustToggle.setEnabled(true);
174 }
175 toast = v -> hideToast();
176 }
177 } else {
178 key.setTextColor(getTertiaryTextColor());
179 keyType.setTextColor(getTertiaryTextColor());
180 toast = v -> replaceToast(getString(R.string.this_device_is_no_longer_in_use), false);
181 if (status.isVerified()) {
182 trustToggle.setVisibility(View.GONE);
183 verifiedFingerprintSymbol.setVisibility(View.VISIBLE);
184 verifiedFingerprintSymbol.setAlpha(0.4368f);
185 verifiedFingerprintSymbol.setOnClickListener(toast);
186 } else {
187 trustToggle.setVisibility(View.VISIBLE);
188 verifiedFingerprintSymbol.setVisibility(View.GONE);
189 trustToggle.setOnClickListener(null);
190 trustToggle.setEnabled(false);
191 trustToggle.setOnClickListener(toast);
192 }
193 }
194
195 view.setOnClickListener(toast);
196 key.setOnClickListener(toast);
197 keyType.setOnClickListener(toast);
198 if (showTag) {
199 keyType.setText(getString(x509 ? R.string.omemo_fingerprint_x509 : R.string.omemo_fingerprint));
200 } else {
201 keyType.setVisibility(View.GONE);
202 }
203 if (highlight) {
204 keyType.setTextColor(ContextCompat.getColor(this, R.color.accent));
205 keyType.setText(getString(x509 ? R.string.omemo_fingerprint_x509_selected_message : R.string.omemo_fingerprint_selected_message));
206 } else {
207 keyType.setText(getString(x509 ? R.string.omemo_fingerprint_x509 : R.string.omemo_fingerprint));
208 }
209
210 key.setText(CryptoHelper.prettifyFingerprint(fingerprint.substring(2)));
211
212 keys.addView(view);
213 }
214
215 public void showPurgeKeyDialog(final Account account, final String fingerprint) {
216 AlertDialog.Builder builder = new AlertDialog.Builder(this);
217 builder.setTitle(R.string.distrust_omemo_key);
218 builder.setMessage(R.string.distrust_omemo_key_text);
219 builder.setNegativeButton(getString(R.string.cancel), null);
220 builder.setPositiveButton(R.string.confirm,
221 (dialog, which) -> {
222 account.getAxolotlService().distrustFingerprint(fingerprint);
223 refreshUi();
224 });
225 builder.create().show();
226 }
227
228 private void showX509Certificate(Account account, String fingerprint) {
229 X509Certificate x509Certificate = account.getAxolotlService().getFingerprintCertificate(fingerprint);
230 if (x509Certificate != null) {
231 showCertificateInformationDialog(CryptoHelper.extractCertificateInformation(x509Certificate));
232 } else {
233 Toast.makeText(this,R.string.certificate_not_found, Toast.LENGTH_SHORT).show();
234 }
235 }
236
237 private void showCertificateInformationDialog(Bundle bundle) {
238 View view = getLayoutInflater().inflate(R.layout.certificate_information, null);
239 final String not_available = getString(R.string.certicate_info_not_available);
240 TextView subject_cn = (TextView) view.findViewById(R.id.subject_cn);
241 TextView subject_o = (TextView) view.findViewById(R.id.subject_o);
242 TextView issuer_cn = (TextView) view.findViewById(R.id.issuer_cn);
243 TextView issuer_o = (TextView) view.findViewById(R.id.issuer_o);
244 TextView sha1 = (TextView) view.findViewById(R.id.sha1);
245
246 subject_cn.setText(bundle.getString("subject_cn", not_available));
247 subject_o.setText(bundle.getString("subject_o", not_available));
248 issuer_cn.setText(bundle.getString("issuer_cn", not_available));
249 issuer_o.setText(bundle.getString("issuer_o", not_available));
250 sha1.setText(bundle.getString("sha1", not_available));
251
252 AlertDialog.Builder builder = new AlertDialog.Builder(this);
253 builder.setTitle(R.string.certificate_information);
254 builder.setView(view);
255 builder.setPositiveButton(R.string.ok, null);
256 builder.create().show();
257 }
258}