1package eu.siacs.conversations.ui;
2
3import android.Manifest;
4import android.app.Activity;
5import android.content.Intent;
6import android.content.pm.PackageManager;
7import android.net.Uri;
8import android.os.Build;
9import android.os.Bundle;
10import android.widget.Toast;
11
12import androidx.appcompat.app.AppCompatActivity;
13import androidx.core.content.ContextCompat;
14
15import com.google.common.base.Strings;
16
17import java.util.List;
18import java.util.regex.Matcher;
19import java.util.regex.Pattern;
20
21import eu.siacs.conversations.R;
22import eu.siacs.conversations.persistance.DatabaseBackend;
23import eu.siacs.conversations.services.QuickConversationsService;
24import eu.siacs.conversations.utils.ProvisioningUtils;
25import eu.siacs.conversations.utils.SignupUtils;
26import eu.siacs.conversations.utils.XmppUri;
27import eu.siacs.conversations.xmpp.Jid;
28
29public class UriHandlerActivity extends AppCompatActivity {
30
31 public static final String ACTION_SCAN_QR_CODE = "scan_qr_code";
32 private static final String EXTRA_ALLOW_PROVISIONING = "extra_allow_provisioning";
33 private static final int REQUEST_SCAN_QR_CODE = 0x1234;
34 private static final int REQUEST_CAMERA_PERMISSIONS_TO_SCAN = 0x6789;
35 private static final int REQUEST_CAMERA_PERMISSIONS_TO_SCAN_AND_PROVISION = 0x6790;
36 private static final Pattern V_CARD_XMPP_PATTERN = Pattern.compile("\nIMPP([^:]*):(xmpp:.+)\n");
37 private boolean handled = false;
38
39 public static void scan(final Activity activity) {
40 scan(activity, false);
41 }
42
43 public static void scan(final Activity activity, final boolean provisioning) {
44 if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M || ContextCompat.checkSelfPermission(activity, Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED) {
45 final Intent intent = new Intent(activity, UriHandlerActivity.class);
46 intent.setAction(UriHandlerActivity.ACTION_SCAN_QR_CODE);
47 if (provisioning) {
48 intent.putExtra(EXTRA_ALLOW_PROVISIONING, true);
49 }
50 intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
51 activity.startActivity(intent);
52 } else {
53 activity.requestPermissions(
54 new String[]{Manifest.permission.CAMERA},
55 provisioning ? REQUEST_CAMERA_PERMISSIONS_TO_SCAN_AND_PROVISION : REQUEST_CAMERA_PERMISSIONS_TO_SCAN
56 );
57 }
58 }
59
60 public static void onRequestPermissionResult(Activity activity, int requestCode, int[] grantResults) {
61 if (requestCode != REQUEST_CAMERA_PERMISSIONS_TO_SCAN && requestCode != REQUEST_CAMERA_PERMISSIONS_TO_SCAN_AND_PROVISION) {
62 return;
63 }
64 if (grantResults.length > 0) {
65 if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
66 if (requestCode == REQUEST_CAMERA_PERMISSIONS_TO_SCAN_AND_PROVISION) {
67 scan(activity, true);
68 } else {
69 scan(activity);
70 }
71 } else {
72 Toast.makeText(activity, R.string.qr_code_scanner_needs_access_to_camera, Toast.LENGTH_SHORT).show();
73 }
74 }
75 }
76
77 @Override
78 protected void onCreate(Bundle savedInstanceState) {
79 super.onCreate(savedInstanceState);
80 this.handled = savedInstanceState != null && savedInstanceState.getBoolean("handled", false);
81 getLayoutInflater().inflate(R.layout.toolbar, findViewById(android.R.id.content));
82 setSupportActionBar(findViewById(R.id.toolbar));
83 }
84
85 @Override
86 public void onStart() {
87 super.onStart();
88 handleIntent(getIntent());
89 }
90
91 @Override
92 public void onSaveInstanceState(Bundle savedInstanceState) {
93 savedInstanceState.putBoolean("handled", this.handled);
94 super.onSaveInstanceState(savedInstanceState);
95 }
96
97 @Override
98 public void onNewIntent(final Intent intent) {
99 super.onNewIntent(intent);
100 handleIntent(intent);
101 }
102
103 private void handleUri(Uri uri) {
104 handleUri(uri, false);
105 }
106
107 private void handleUri(Uri uri, final boolean scanned) {
108 final Intent intent;
109 final XmppUri xmppUri = new XmppUri(uri);
110 final List<Jid> accounts = DatabaseBackend.getInstance(this).getAccountJids(true);
111
112 if (SignupUtils.isSupportTokenRegistry() && xmppUri.isValidJid()) {
113 final String preAuth = xmppUri.getParameter(XmppUri.PARAMETER_PRE_AUTH);
114 final Jid jid = xmppUri.getJid();
115 if (xmppUri.isAction(XmppUri.ACTION_REGISTER)) {
116 if (jid.getEscapedLocal() != null && accounts.contains(jid.asBareJid())) {
117 Toast.makeText(this, R.string.account_already_exists, Toast.LENGTH_LONG).show();
118 return;
119 }
120 intent = SignupUtils.getTokenRegistrationIntent(this, jid, preAuth);
121 startActivity(intent);
122 return;
123 }
124 if (accounts.size() == 0 && xmppUri.isAction(XmppUri.ACTION_ROSTER) && "y".equals(xmppUri.getParameter(XmppUri.PARAMETER_IBR))) {
125 intent = SignupUtils.getTokenRegistrationIntent(this, jid.getDomain(), preAuth);
126 intent.putExtra(StartConversationActivity.EXTRA_INVITE_URI, xmppUri.toString());
127 startActivity(intent);
128 return;
129 }
130 }
131
132 if (accounts.size() == 0) {
133 if (xmppUri.isValidJid()) {
134 intent = SignupUtils.getSignUpIntent(this);
135 intent.putExtra(StartConversationActivity.EXTRA_INVITE_URI, xmppUri.toString());
136 startActivity(intent);
137 } else {
138 Toast.makeText(this, R.string.invalid_jid, Toast.LENGTH_SHORT).show();
139 }
140
141 return;
142 }
143
144 if (xmppUri.isAction(XmppUri.ACTION_MESSAGE)) {
145
146 final Jid jid = xmppUri.getJid();
147 final String body = xmppUri.getBody();
148
149 if (jid != null) {
150 final Class<?> clazz = findShareViaAccountClass();
151 if (clazz != null) {
152 intent = new Intent(this, clazz);
153 intent.putExtra("contact", jid.toEscapedString());
154 intent.putExtra("body", body);
155 } else {
156 intent = new Intent(this, StartConversationActivity.class);
157 intent.setAction(Intent.ACTION_VIEW);
158 intent.setData(uri);
159 intent.putExtra("account", accounts.get(0).toEscapedString());
160 }
161 } else {
162 intent = new Intent(this, ShareWithActivity.class);
163 intent.setAction(Intent.ACTION_SEND);
164 intent.setType("text/plain");
165 intent.putExtra(Intent.EXTRA_TEXT, body);
166 }
167 } else if (accounts.contains(xmppUri.getJid())) {
168 intent = new Intent(getApplicationContext(), EditAccountActivity.class);
169 intent.setAction(Intent.ACTION_VIEW);
170 intent.putExtra("jid", xmppUri.getJid().asBareJid().toString());
171 intent.setData(uri);
172 intent.putExtra("scanned", scanned);
173 } else if (xmppUri.isValidJid()) {
174 intent = new Intent(getApplicationContext(), StartConversationActivity.class);
175 intent.setAction(Intent.ACTION_VIEW);
176 intent.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
177 intent.putExtra("scanned", scanned);
178 intent.setData(uri);
179 } else {
180 Toast.makeText(this, R.string.invalid_jid, Toast.LENGTH_SHORT).show();
181 return;
182 }
183
184 startActivity(intent);
185 }
186
187 private static Class<?> findShareViaAccountClass() {
188 try {
189 return Class.forName("eu.siacs.conversations.ui.ShareViaAccountActivity");
190 } catch (final ClassNotFoundException e) {
191 return null;
192 }
193 }
194
195 private void handleIntent(Intent data) {
196 if (handled) {
197 return;
198 }
199 if (data == null || data.getAction() == null) {
200 finish();
201 return;
202 }
203
204 handled = true;
205
206 switch (data.getAction()) {
207 case Intent.ACTION_VIEW:
208 case Intent.ACTION_SENDTO:
209 handleUri(data.getData());
210 break;
211 case ACTION_SCAN_QR_CODE:
212 Intent intent = new Intent(this, ScanActivity.class);
213 startActivityForResult(intent, REQUEST_SCAN_QR_CODE);
214 return;
215 }
216
217 finish();
218 }
219
220 private boolean allowProvisioning() {
221 final Intent launchIntent = getIntent();
222 return launchIntent != null && launchIntent.getBooleanExtra(EXTRA_ALLOW_PROVISIONING, false);
223 }
224
225 @Override
226 public void onActivityResult(final int requestCode, final int resultCode, final Intent intent) {
227 super.onActivityResult(requestCode, requestCode, intent);
228 if (requestCode == REQUEST_SCAN_QR_CODE && resultCode == RESULT_OK) {
229 final String result = intent.getStringExtra(ScanActivity.INTENT_EXTRA_RESULT);
230 if (Strings.isNullOrEmpty(result)) {
231 finish();
232 return;
233 }
234 if (result.startsWith("BEGIN:VCARD\n")) {
235 final Matcher matcher = V_CARD_XMPP_PATTERN.matcher(result);
236 if (matcher.find()) {
237 handleUri(Uri.parse(matcher.group(2)), true);
238 }
239 finish();
240 return;
241 } else if (QuickConversationsService.isConversations() && looksLikeJsonObject(result) && allowProvisioning()) {
242 ProvisioningUtils.provision(this, result);
243 finish();
244 return;
245 }
246 handleUri(Uri.parse(result), true);
247 }
248 finish();
249 }
250
251 private static boolean looksLikeJsonObject(final String input) {
252 final String trimmed = Strings.nullToEmpty(input).trim();
253 return trimmed.charAt(0) == '{' && trimmed.charAt(trimmed.length() - 1) == '}';
254 }
255}