anotherim/src/main/java/eu/siacs/conversations/Config.java

package eu.siacs.conversations;

import android.graphics.Bitmap;
import android.net.Uri;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Locale;

import eu.siacs.conversations.crypto.XmppDomainVerifier;
import eu.siacs.conversations.xmpp.Jid;
import eu.siacs.conversations.xmpp.chatstate.ChatState;

public final class Config {
    private static final int UNENCRYPTED = 1;
    private static final int OPENPGP = 2;
    private static final int OMEMO = 8;

    private static final int ENCRYPTION_MASK = UNENCRYPTED | OPENPGP | OMEMO;

    public static boolean supportUnencrypted() {
        return (ENCRYPTION_MASK & UNENCRYPTED) != 0;
    }

    public static boolean supportOpenPgp() {
        return (ENCRYPTION_MASK & OPENPGP) != 0;
    }

    public static boolean supportOmemo() {
        return (ENCRYPTION_MASK & OMEMO) != 0;
    }

    public static boolean omemoOnly() {
        return !multipleEncryptionChoices() && supportOmemo();
    }

    public static boolean multipleEncryptionChoices() {
        return (ENCRYPTION_MASK & (ENCRYPTION_MASK - 1)) != 0;
    }

    public static final String LOGTAG = BuildConfig.APP_NAME.toLowerCase(Locale.US);

    public static final Jid BUG_REPORTS = Jid.of("bugs@conversations.im");
    public static final Uri HELP = Uri.parse("https://help.conversations.im");


    public static final String DOMAIN_LOCK = null; //only allow account creation for this domain
    public static final String MAGIC_CREATE_DOMAIN = "conversations.im";
    public static final Jid QUICKSY_DOMAIN = Jid.of("quicksy.im");

    public static final String CHANNEL_DISCOVERY = "https://search.jabber.network";

    public static final boolean DISALLOW_REGISTRATION_IN_UI = false; //hide the register checkbox

    public static final boolean USE_RANDOM_RESOURCE_ON_EVERY_BIND = false;

    public static final boolean ALLOW_NON_TLS_CONNECTIONS = false; //very dangerous. you should have a good reason to set this to true

    public static final long CONTACT_SYNC_RETRY_INTERVAL = 1000L * 60 * 5;


    public static final boolean QUICKSTART_ENABLED = true;

    //Notification settings
    public static final boolean HIDE_MESSAGE_TEXT_IN_NOTIFICATION = false;
    public static final boolean ALWAYS_NOTIFY_BY_DEFAULT = false;
    public static final boolean SUPPRESS_ERROR_NOTIFICATION = false;


    public static final boolean DISABLE_BAN = false; // disables the ability to ban users from rooms

    public static final int PING_MAX_INTERVAL = 300;
    public static final int IDLE_PING_INTERVAL = 600; //540 is minimum according to docs;
    public static final int PING_MIN_INTERVAL = 30;
    public static final int LOW_PING_TIMEOUT = 1; // used after push received
    public static final int PING_TIMEOUT = 15;
    public static final int SOCKET_TIMEOUT = 15;
    public static final int CONNECT_TIMEOUT = 90;
    public static final int POST_CONNECTIVITY_CHANGE_PING_INTERVAL = 30;
    public static final int CONNECT_DISCO_TIMEOUT = 20;
    public static final int MINI_GRACE_PERIOD = 750;

    public static final boolean XEP_0392 = true; //enables XEP-0392 v0.6.0


    // media file formats. Homogenous Android or Conversations only deployments can switch to opus and webp
    public static final int AVATAR_SIZE = 192;
    public static final Bitmap.CompressFormat AVATAR_FORMAT = Bitmap.CompressFormat.JPEG;
    public static final int AVATAR_CHAR_LIMIT = 9400;

    public static final int IMAGE_SIZE = 1920;
    public static final Bitmap.CompressFormat IMAGE_FORMAT = Bitmap.CompressFormat.JPEG;
    public static final int IMAGE_QUALITY = 75;

    public static final boolean USE_OPUS_VOICE_MESSAGES = false;

    public static final int MESSAGE_MERGE_WINDOW = 20;

    public static final int PAGE_SIZE = 50;
    public static final int MAX_NUM_PAGES = 3;
    public static final int MAX_SEARCH_RESULTS = 300;

    public static final int REFRESH_UI_INTERVAL = 500;

    public static final int MAX_DISPLAY_MESSAGE_CHARS = 4096;
    public static final int MAX_STORAGE_MESSAGE_CHARS = 2 * 1024 * 1024; //2MB

    public static final long MILLISECONDS_IN_DAY = 24 * 60 * 60 * 1000;

    //remove *other* omemo devices from *your* device list announcement after not seeing any activity from them for 42 days. They will automatically add themselves after coming back online.
    public static final long OMEMO_AUTO_EXPIRY = 42 * MILLISECONDS_IN_DAY;

    public static final boolean REMOVE_BROKEN_DEVICES = false;
    public static final boolean OMEMO_PADDING = false;
    public static final boolean PUT_AUTH_TAG_INTO_KEY = true;
    public static final boolean AUTOMATICALLY_COMPLETE_SESSIONS = true;
    public static final boolean DISABLE_PROXY_LOOKUP = false; //useful to debug ibb
    public static final boolean USE_DIRECT_JINGLE_CANDIDATES = true;
    public static final boolean DISABLE_HTTP_UPLOAD = false;
    public static final boolean EXTENDED_SM_LOGGING = false; // log stanza counts
    public static final boolean BACKGROUND_STANZA_LOGGING = false; //log all stanzas that were received while the app is in background
    public static final boolean RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE = true; //setting to true might increase power consumption

    public static final boolean ENCRYPT_ON_HTTP_UPLOADED = false;

    public static final boolean X509_VERIFICATION = false; //use x509 certificates to verify OMEMO keys
    public static final boolean REQUIRE_RTP_VERIFICATION = false; //require a/v calls to be verified with OMEMO

    public static final boolean ONLY_INTERNAL_STORAGE = false; //use internal storage instead of sdcard to save attachments

    public static final boolean IGNORE_ID_REWRITE_IN_MUC = true;
    public static final boolean MUC_LEAVE_BEFORE_JOIN = false;

    public static final boolean USE_LMC_VERSION_1_1 = true;

    public static final long MAM_MAX_CATCHUP = MILLISECONDS_IN_DAY * 5;
    public static final int MAM_MAX_MESSAGES = 750;

    public static final ChatState DEFAULT_CHAT_STATE = ChatState.ACTIVE;
    public static final int TYPING_TIMEOUT = 8;

    public static final int EXPIRY_INTERVAL = 30 * 60 * 1000; // 30 minutes

    public static final String[] ENABLED_CIPHERS = {
            "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
            "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA384",
            "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA256",
            "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
            "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA",
            "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA",

            "TLS_DHE_RSA_WITH_AES_128_GCM_SHA256",
            "TLS_DHE_RSA_WITH_AES_128_GCM_SHA384",
            "TLS_DHE_RSA_WITH_AES_256_GCM_SHA256",
            "TLS_DHE_RSA_WITH_AES_256_GCM_SHA384",

            "TLS_DHE_RSA_WITH_CAMELLIA_256_SHA",

            // Fallback.
            "TLS_RSA_WITH_AES_128_GCM_SHA256",
            "TLS_RSA_WITH_AES_128_GCM_SHA384",
            "TLS_RSA_WITH_AES_256_GCM_SHA256",
            "TLS_RSA_WITH_AES_256_GCM_SHA384",
            "TLS_RSA_WITH_AES_128_CBC_SHA256",
            "TLS_RSA_WITH_AES_128_CBC_SHA384",
            "TLS_RSA_WITH_AES_256_CBC_SHA256",
            "TLS_RSA_WITH_AES_256_CBC_SHA384",
            "TLS_RSA_WITH_AES_128_CBC_SHA",
            "TLS_RSA_WITH_AES_256_CBC_SHA",
    };

    public static final String[] WEAK_CIPHER_PATTERNS = {
            "_NULL_",
            "_EXPORT_",
            "_anon_",
            "_RC4_",
            "_DES_",
            "_MD5",
    };

    public static class OMEMO_EXCEPTIONS {
        //if the own account matches one of the following domains OMEMO won’t be turned on automatically
        public static final List<String> ACCOUNT_DOMAINS = Collections.singletonList("s.ms");

        //if the contacts domain matches one of the following domains OMEMO won’t be turned on automatically
        //can be used for well known, widely used gateways
        private static final List<String> CONTACT_DOMAINS = Arrays.asList(
                "cheogram.com",
                "*.covid.monal.im"
        );

        public static boolean matchesContactDomain(final String domain) {
            return XmppDomainVerifier.matchDomain(domain, CONTACT_DOMAINS);
        }
    }

    private Config() {
    }

    public static final class Map {
        public final static double INITIAL_ZOOM_LEVEL = 4;
        public final static double FINAL_ZOOM_LEVEL = 15;
        public final static int MY_LOCATION_INDICATOR_SIZE = 10;
        public final static int MY_LOCATION_INDICATOR_OUTLINE_SIZE = 3;
        public final static long LOCATION_FIX_TIME_DELTA = 1000 * 10; // ms
        public final static float LOCATION_FIX_SPACE_DELTA = 10; // m
        public final static int LOCATION_FIX_SIGNIFICANT_TIME_DELTA = 1000 * 60 * 2; // ms
    }

    // How deep nested quotes should be displayed. '2' means one quote nested in another.
    public static final int QUOTE_MAX_DEPTH = 7;
    // How deep nested quotes should be created on quoting a message.
    public static final int QUOTING_MAX_DEPTH = 2;
}