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attempt to parse Link header from https url scanned from welcome screen

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This commit is contained in:
Daniel Gultsch 2021-10-07 09:48:49 +02:00
parent cc489ef7bf
commit 6d2e406ee5
5 changed files with 162 additions and 48 deletions
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3
src/conversations/java/eu/siacs/conversations/ui/WelcomeActivity.java
View file

@ -106,7 +106,8 @@ public class WelcomeActivity extends XmppActivity implements XmppConnectionServi
}
@Override
public void onNewIntent(Intent intent) {
public void onNewIntent(final Intent intent) {
super.onNewIntent(intent);
if (intent != null) {
setIntent(intent);
}

166
src/main/java/eu/siacs/conversations/ui/UriHandlerActivity.java
View file

@ -7,24 +7,39 @@ import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Toast;
import androidx.annotation.StringRes;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.content.ContextCompat;
import androidx.databinding.DataBindingUtil;
import com.google.common.base.Strings;
import org.jetbrains.annotations.NotNull;
import java.io.IOException;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import eu.siacs.conversations.Config;
import eu.siacs.conversations.R;
import eu.siacs.conversations.databinding.ActivityUriHandlerBinding;
import eu.siacs.conversations.http.HttpConnectionManager;
import eu.siacs.conversations.persistance.DatabaseBackend;
import eu.siacs.conversations.services.QuickConversationsService;
import eu.siacs.conversations.utils.ProvisioningUtils;
import eu.siacs.conversations.utils.SignupUtils;
import eu.siacs.conversations.utils.XmppUri;
import eu.siacs.conversations.xmpp.Jid;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.HttpUrl;
import okhttp3.Request;
import okhttp3.Response;
public class UriHandlerActivity extends AppCompatActivity {
@ -34,7 +49,9 @@ public class UriHandlerActivity extends AppCompatActivity {
private static final int REQUEST_CAMERA_PERMISSIONS_TO_SCAN = 0x6789;
private static final int REQUEST_CAMERA_PERMISSIONS_TO_SCAN_AND_PROVISION = 0x6790;
private static final Pattern V_CARD_XMPP_PATTERN = Pattern.compile("\nIMPP([^:]*):(xmpp:.+)\n");
private boolean handled = false;
private static final Pattern LINK_HEADER_PATTERN = Pattern.compile("<(.*?)>");
private ActivityUriHandlerBinding binding;
private Call call;
public static void scan(final Activity activity) {
scan(activity, false);
@ -77,9 +94,7 @@ public class UriHandlerActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.handled = savedInstanceState != null && savedInstanceState.getBoolean("handled", false);
getLayoutInflater().inflate(R.layout.toolbar, findViewById(android.R.id.content));
setSupportActionBar(findViewById(R.id.toolbar));
this.binding = DataBindingUtil.setContentView(this, R.layout.activity_uri_handler);
}
@Override
@ -88,23 +103,17 @@ public class UriHandlerActivity extends AppCompatActivity {
handleIntent(getIntent());
}
@Override
public void onSaveInstanceState(Bundle savedInstanceState) {
savedInstanceState.putBoolean("handled", this.handled);
super.onSaveInstanceState(savedInstanceState);
}
@Override
public void onNewIntent(final Intent intent) {
super.onNewIntent(intent);
handleIntent(intent);
}
private void handleUri(Uri uri) {
handleUri(uri, false);
private boolean handleUri(final Uri uri) {
return handleUri(uri, false);
}
private void handleUri(Uri uri, final boolean scanned) {
private boolean handleUri(final Uri uri, final boolean scanned) {
final Intent intent;
final XmppUri xmppUri = new XmppUri(uri);
final List<Jid> accounts = DatabaseBackend.getInstance(this).getAccountJids(true);
@ -114,19 +123,22 @@ public class UriHandlerActivity extends AppCompatActivity {
final Jid jid = xmppUri.getJid();
if (xmppUri.isAction(XmppUri.ACTION_REGISTER)) {
if (jid.getEscapedLocal() != null && accounts.contains(jid.asBareJid())) {
Toast.makeText(this, R.string.account_already_exists, Toast.LENGTH_LONG).show();
return;
showError(R.string.account_already_exists);
return false;
}
intent = SignupUtils.getTokenRegistrationIntent(this, jid, preAuth);
startActivity(intent);
return;
return true;
}
if (accounts.size() == 0 && xmppUri.isAction(XmppUri.ACTION_ROSTER) && "y".equals(xmppUri.getParameter(XmppUri.PARAMETER_IBR))) {
intent = SignupUtils.getTokenRegistrationIntent(this, jid.getDomain(), preAuth);
intent.putExtra(StartConversationActivity.EXTRA_INVITE_URI, xmppUri.toString());
startActivity(intent);
return;
return true;
}
} else if (xmppUri.isAction(XmppUri.ACTION_REGISTER)) {
showError(R.string.account_registrations_are_not_supported);
return false;
}
if (accounts.size() == 0) {
@ -134,15 +146,14 @@ public class UriHandlerActivity extends AppCompatActivity {
intent = SignupUtils.getSignUpIntent(this);
intent.putExtra(StartConversationActivity.EXTRA_INVITE_URI, xmppUri.toString());
startActivity(intent);
return true;
} else {
Toast.makeText(this, R.string.invalid_jid, Toast.LENGTH_SHORT).show();
showError(R.string.invalid_jid);
return false;
}
return;
}
if (xmppUri.isAction(XmppUri.ACTION_MESSAGE)) {
final Jid jid = xmppUri.getJid();
final String body = xmppUri.getBody();
@ -177,11 +188,57 @@ public class UriHandlerActivity extends AppCompatActivity {
intent.putExtra("scanned", scanned);
intent.setData(uri);
} else {
Toast.makeText(this, R.string.invalid_jid, Toast.LENGTH_SHORT).show();
return;
showError(R.string.invalid_jid);
return false;
}
startActivity(intent);
return true;
}
private void checkForLinkHeader(final HttpUrl url) {
Log.d(Config.LOGTAG, "checking for link header on " + url);
this.call = HttpConnectionManager.OK_HTTP_CLIENT.newCall(new Request.Builder()
.url(url)
.head()
.build());
this.call.enqueue(new Callback() {
@Override
public void onFailure(@NotNull Call call, @NotNull IOException e) {
Log.d(Config.LOGTAG, "unable to check HTTP url", e);
showError(R.string.no_xmpp_adddress_found);
}
@Override
public void onResponse(@NotNull Call call, @NotNull Response response) {
if (response.isSuccessful()) {
final String linkHeader = response.header("Link");
if (linkHeader != null && processLinkHeader(linkHeader)) {
return;
}
}
showError(R.string.no_xmpp_adddress_found);
}
});
}
private boolean processLinkHeader(final String header) {
final Matcher matcher = LINK_HEADER_PATTERN.matcher(header);
if (matcher.find()) {
final String group = matcher.group();
final String link = group.substring(1, group.length() - 1);
if (handleUri(Uri.parse(link))) {
finish();
return true;
}
}
return false;
}
private void showError(@StringRes int error) {
this.binding.progress.setVisibility(View.INVISIBLE);
this.binding.error.setText(error);
this.binding.error.setVisibility(View.VISIBLE);
}
private static Class<?> findShareViaAccountClass() {
@ -192,29 +249,33 @@ public class UriHandlerActivity extends AppCompatActivity {
}
}
private void handleIntent(Intent data) {
if (handled) {
private void handleIntent(final Intent data) {
final String action = data == null ? null : data.getAction();
if (action == null) {
return;
}
if (data == null || data.getAction() == null) {
finish();
return;
}
handled = true;
switch (data.getAction()) {
switch (action) {
case Intent.ACTION_MAIN:
binding.progress.setVisibility(call != null && !call.isCanceled() ? View.VISIBLE : View.INVISIBLE);
break;
case Intent.ACTION_VIEW:
case Intent.ACTION_SENDTO:
handleUri(data.getData());
if (handleUri(data.getData())) {
finish();
}
break;
case ACTION_SCAN_QR_CODE:
Intent intent = new Intent(this, ScanActivity.class);
startActivityForResult(intent, REQUEST_SCAN_QR_CODE);
return;
Log.d(Config.LOGTAG, "scan. allow=" + allowProvisioning());
setIntent(createMainIntent());
startActivityForResult(new Intent(this, ScanActivity.class), REQUEST_SCAN_QR_CODE);
break;
}
}
finish();
private Intent createMainIntent() {
final Intent intent = new Intent(Intent.ACTION_MAIN);
intent.putExtra(EXTRA_ALLOW_PROVISIONING, allowProvisioning());
return intent;
}
private boolean allowProvisioning() {
@ -226,6 +287,7 @@ public class UriHandlerActivity extends AppCompatActivity {
public void onActivityResult(final int requestCode, final int resultCode, final Intent intent) {
super.onActivityResult(requestCode, requestCode, intent);
if (requestCode == REQUEST_SCAN_QR_CODE && resultCode == RESULT_OK) {
final boolean allowProvisioning = allowProvisioning();
final String result = intent.getStringExtra(ScanActivity.INTENT_EXTRA_RESULT);
if (Strings.isNullOrEmpty(result)) {
finish();
@ -234,18 +296,34 @@ public class UriHandlerActivity extends AppCompatActivity {
if (result.startsWith("BEGIN:VCARD\n")) {
final Matcher matcher = V_CARD_XMPP_PATTERN.matcher(result);
if (matcher.find()) {
handleUri(Uri.parse(matcher.group(2)), true);
if (handleUri(Uri.parse(matcher.group(2)), true)) {
finish();
}
} else {
showError(R.string.no_xmpp_adddress_found);
}
finish();
return;
} else if (QuickConversationsService.isConversations() && looksLikeJsonObject(result) && allowProvisioning()) {
} else if (QuickConversationsService.isConversations() && looksLikeJsonObject(result) && allowProvisioning) {
ProvisioningUtils.provision(this, result);
finish();
return;
}
handleUri(Uri.parse(result), true);
final Uri uri = Uri.parse(result.trim());
if (allowProvisioning && "https".equalsIgnoreCase(uri.getScheme()) && !XmppUri.INVITE_DOMAIN.equalsIgnoreCase(uri.getHost())) {
final HttpUrl httpUrl = HttpUrl.parse(uri.toString());
if (httpUrl != null) {
checkForLinkHeader(httpUrl);
} else {
finish();
}
} else if (handleUri(uri, true)) {
finish();
} else {
setIntent(new Intent(Intent.ACTION_VIEW, uri));
}
} else {
finish();
}
finish();
}
private static boolean looksLikeJsonObject(final String input) {

8
src/main/java/eu/siacs/conversations/utils/XmppUri.java
View file

@ -35,6 +35,8 @@ public class XmppUri {
private Map<String, String> parameters = Collections.emptyMap();
private boolean safeSource = true;
public static final String INVITE_DOMAIN = "conversations.im";
public XmppUri(final String uri) {
try {
parse(Uri.parse(uri));
@ -136,10 +138,10 @@ public class XmppUri {
return;
}
this.uri = uri;
String scheme = uri.getScheme();
String host = uri.getHost();
final String scheme = uri.getScheme();
final String host = uri.getHost();
List<String> segments = uri.getPathSegments();
if ("https".equalsIgnoreCase(scheme) && "conversations.im".equalsIgnoreCase(host)) {
if ("https".equalsIgnoreCase(scheme) && INVITE_DOMAIN.equalsIgnoreCase(host)) {
if (segments.size() >= 2 && segments.get(1).contains("@")) {
// sample : https://conversations.im/i/foo@bar.com
try {

31
src/main/res/layout/activity_uri_handler.xml Normal file
View file

@ -0,0 +1,31 @@
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="?colorPrimaryDark"
android:padding="24dp">
<ProgressBar
android:id="@+id/progress"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:indeterminate="true"
android:indeterminateTint="@color/white" />
<TextView
android:id="@+id/error"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/progress"
android:layout_centerHorizontal="true"
android:layout_marginTop="16dp"
android:gravity="center_horizontal"
android:textAppearance="@style/TextAppearance.Conversations.Body2"
android:textColor="@color/white87"
android:visibility="invisible" />
</RelativeLayout>
</layout>

2
src/main/res/values/strings.xml
View file

@ -968,5 +968,7 @@
<string name="backup_started_message">The backup has been started. You’ll get a notification once it has been completed.</string>
<string name="unable_to_enable_video">Unable to enable video.</string>
<string name="plain_text_document">Plain text document</string>
<string name="account_registrations_are_not_supported">Account registrations are not supported</string>
<string name="no_xmpp_adddress_found">No XMPP address found</string>
</resources>