148 lines
5.3 KiB
Java
148 lines
5.3 KiB
Java
package eu.siacs.conversations.generator;
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import android.util.Base64;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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import java.text.SimpleDateFormat;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.List;
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import java.util.Locale;
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import java.util.TimeZone;
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import eu.siacs.conversations.Config;
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import eu.siacs.conversations.R;
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import eu.siacs.conversations.crypto.axolotl.AxolotlService;
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import eu.siacs.conversations.entities.Account;
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import eu.siacs.conversations.services.XmppConnectionService;
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import eu.siacs.conversations.utils.PhoneHelper;
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import eu.siacs.conversations.xml.Namespace;
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import eu.siacs.conversations.xmpp.XmppConnection;
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import eu.siacs.conversations.xmpp.jingle.stanzas.FileTransferDescription;
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public abstract class AbstractGenerator {
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private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
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private final String[] FEATURES = {
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Namespace.JINGLE,
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//Jingle File Transfer
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FileTransferDescription.Version.FT_3.getNamespace(),
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FileTransferDescription.Version.FT_4.getNamespace(),
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FileTransferDescription.Version.FT_5.getNamespace(),
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Namespace.JINGLE_TRANSPORTS_S5B,
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Namespace.JINGLE_TRANSPORTS_IBB,
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Namespace.JINGLE_ENCRYPTED_TRANSPORT,
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Namespace.JINGLE_ENCRYPTED_TRANSPORT_OMEMO,
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"http://jabber.org/protocol/muc",
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"jabber:x:conference",
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Namespace.OOB,
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"http://jabber.org/protocol/caps",
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"http://jabber.org/protocol/disco#info",
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"urn:xmpp:avatar:metadata+notify",
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Namespace.NICK + "+notify",
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"urn:xmpp:ping",
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"jabber:iq:version",
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"http://jabber.org/protocol/chatstates"
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};
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private final String[] MESSAGE_CONFIRMATION_FEATURES = {
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"urn:xmpp:chat-markers:0",
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"urn:xmpp:receipts"
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};
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private final String[] MESSAGE_CORRECTION_FEATURES = {
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"urn:xmpp:message-correct:0"
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};
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private final String[] PRIVACY_SENSITIVE = {
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"urn:xmpp:time" //XEP-0202: Entity Time leaks time zone
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};
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private final String[] VOIP_NAMESPACES = {
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Namespace.JINGLE_TRANSPORT_ICE_UDP,
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Namespace.JINGLE_FEATURE_AUDIO,
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Namespace.JINGLE_FEATURE_VIDEO,
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Namespace.JINGLE_APPS_RTP,
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Namespace.JINGLE_APPS_DTLS,
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Namespace.JINGLE_MESSAGE
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};
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protected XmppConnectionService mXmppConnectionService;
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private String mVersion = null;
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AbstractGenerator(XmppConnectionService service) {
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this.mXmppConnectionService = service;
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}
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public static String getTimestamp(long time) {
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DATE_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC"));
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return DATE_FORMAT.format(time);
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}
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String getIdentityVersion() {
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if (mVersion == null) {
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this.mVersion = PhoneHelper.getVersionName(mXmppConnectionService);
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}
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return this.mVersion;
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}
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String getIdentityName() {
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return mXmppConnectionService.getString(R.string.app_name);
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}
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public String getUserAgent() {
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return mXmppConnectionService.getString(R.string.app_name) + '/' + getIdentityVersion();
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}
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String getIdentityType() {
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if ("chromium".equals(android.os.Build.BRAND)) {
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return "pc";
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} else {
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return mXmppConnectionService.getString(R.string.default_resource).toLowerCase();
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}
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}
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String getCapHash(final Account account) {
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StringBuilder s = new StringBuilder();
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s.append("client/").append(getIdentityType()).append("//").append(getIdentityName()).append('<');
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MessageDigest md;
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try {
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md = MessageDigest.getInstance("SHA-1");
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} catch (NoSuchAlgorithmException e) {
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return null;
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}
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for (String feature : getFeatures(account)) {
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s.append(feature).append('<');
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}
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final byte[] sha1 = md.digest(s.toString().getBytes());
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return Base64.encodeToString(sha1, Base64.NO_WRAP);
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}
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public List<String> getFeatures(Account account) {
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final XmppConnection connection = account.getXmppConnection();
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final ArrayList<String> features = new ArrayList<>(Arrays.asList(FEATURES));
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if (mXmppConnectionService.confirmMessages()) {
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features.addAll(Arrays.asList(MESSAGE_CONFIRMATION_FEATURES));
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}
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if (mXmppConnectionService.allowMessageCorrection()) {
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features.addAll(Arrays.asList(MESSAGE_CORRECTION_FEATURES));
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}
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if (Config.supportOmemo()) {
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features.add(AxolotlService.PEP_DEVICE_LIST_NOTIFY);
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}
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if (!mXmppConnectionService.useTorToConnect() && !account.isOnion()) {
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features.addAll(Arrays.asList(PRIVACY_SENSITIVE));
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features.addAll(Arrays.asList(VOIP_NAMESPACES));
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}
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if (mXmppConnectionService.broadcastLastActivity()) {
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features.add(Namespace.IDLE);
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}
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if (connection != null && connection.getFeatures().bookmarks2()) {
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features.add(Namespace.BOOKMARKS2 + "+notify");
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} else {
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features.add(Namespace.BOOKMARKS + "+notify");
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}
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Collections.sort(features);
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return features;
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}
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}
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