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owenclave / app/src/main/java/io/nekohasekai/sagernet/fmt/hysteria2/Hysteria2Bean.java
/******************************************************************************
* *
* Copyright (C) 2023 dyhkwong *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see . *
* *
******************************************************************************/
package io.nekohasekai.sagernet.fmt.hysteria2;
import androidx.annotation.NonNull;
import com.esotericsoftware.kryo.io.ByteBufferInput;
import com.esotericsoftware.kryo.io.ByteBufferOutput;
import org.jetbrains.annotations.NotNull;
import io.nekohasekai.sagernet.fmt.AbstractBean;
import io.nekohasekai.sagernet.fmt.KryoConverters;
import io.nekohasekai.sagernet.ktx.NetsKt;
import libexclavecore.Libexclavecore;
public class Hysteria2Bean extends AbstractBean {
public String auth;
public String obfsPassword;
public String sni;
public String pinnedPeerCertificateSha256;
public String pinnedPeerCertificatePublicKeySha256;
public String pinnedPeerCertificateChainSha256;
public String certificates;
public Boolean allowInsecure;
public Long uploadMbps;
public Long downloadMbps;
public String serverPorts;
public Long hopInterval;
public Long hopIntervalMin;
public Long hopIntervalMax;
public Boolean echEnabled;
public String echConfig;
public String mtlsCertificate;
public String mtlsCertificatePrivateKey;
public String congestionControl;
public String bbrProfile;
public Boolean omitMaxDatagramFrameSize;
public String obfsType;
public Integer geckoMinPacketSize;
public Integer geckoMaxPacketSize;
public String serverNameToVerify;
@Override
public void initializeDefaultValues() {
super.initializeDefaultValues();
if (auth == null) auth = "";
if (obfsPassword == null) obfsPassword = "";
if (sni == null) sni = "";
if (pinnedPeerCertificateSha256 == null) pinnedPeerCertificateSha256 = "";
if (pinnedPeerCertificatePublicKeySha256 == null) pinnedPeerCertificatePublicKeySha256 = "";
if (pinnedPeerCertificateChainSha256 == null) pinnedPeerCertificateChainSha256 = "";
if (certificates == null) certificates = "";
if (allowInsecure == null) allowInsecure = false;
if (uploadMbps == null) uploadMbps = 0L;
if (downloadMbps == null) downloadMbps = 0L;
if (serverPorts == null) serverPorts = "1080";
if (hopInterval == null) hopInterval = 0L;
if (hopIntervalMin == null) hopIntervalMin = 0L;
if (hopIntervalMax == null) hopIntervalMax = 0L;
if (echEnabled == null) echEnabled = false;
if (echConfig == null) echConfig = "";
if (mtlsCertificate == null) mtlsCertificate = "";
if (mtlsCertificatePrivateKey == null) mtlsCertificatePrivateKey = "";
if (congestionControl == null) congestionControl = "bbr";
if (bbrProfile == null) bbrProfile = "standard";
if (omitMaxDatagramFrameSize == null) omitMaxDatagramFrameSize = false;
if (obfsType == null) obfsType = "";
if (geckoMinPacketSize == null) geckoMinPacketSize = 0;
if (geckoMaxPacketSize == null) geckoMaxPacketSize = 0;
if (serverNameToVerify == null) serverNameToVerify = "";
}
@Override
public void serialize(ByteBufferOutput output) {
output.writeInt(10);
super.serialize(output);
output.writeString(auth);
switch (obfsType) {
case "salamander", "gecko":
output.writeString(obfsPassword);
break;
default:
output.writeString(""); // obfsPassword
break;
}
output.writeString(sni);
output.writeString(pinnedPeerCertificateSha256);
output.writeString(pinnedPeerCertificatePublicKeySha256);
output.writeString(pinnedPeerCertificateChainSha256);
output.writeString(certificates);
output.writeBoolean(allowInsecure);
output.writeLong(uploadMbps);
output.writeLong(downloadMbps);
output.writeString(serverPorts);
output.writeLong(hopInterval);
output.writeString(echConfig);
output.writeString(mtlsCertificate);
output.writeString(mtlsCertificatePrivateKey);
output.writeBoolean(echEnabled);
output.writeLong(hopIntervalMin);
output.writeLong(hopIntervalMax);
output.writeString(congestionControl);
output.writeString(bbrProfile);
output.writeBoolean(omitMaxDatagramFrameSize);
output.writeString(obfsType);
switch (obfsType) {
case "gecko":
output.writeInt(geckoMinPacketSize);
output.writeInt(geckoMaxPacketSize);
break;
default:
output.writeInt(0); // geckoMinPacketSize
output.writeInt(0); // geckoMaxPacketSize
break;
}
output.writeString(serverNameToVerify);
}
@Override
public void deserialize(ByteBufferInput input) {
int version = input.readInt();
super.deserialize(input);
auth = input.readString();
obfsPassword = input.readString();
if (!obfsPassword.isEmpty() && version < 9) {
obfsType = "salamander";
}
sni = input.readString();
pinnedPeerCertificateSha256 = input.readString();
if (version >= 4) {
pinnedPeerCertificatePublicKeySha256 = input.readString();
pinnedPeerCertificateChainSha256 = input.readString();
}
certificates = input.readString();
allowInsecure = input.readBoolean();
if (version <= 2) {
uploadMbps = (long) input.readInt();
} else {
uploadMbps = input.readLong();
}
if (version <= 2) {
downloadMbps = (long) input.readInt();
} else {
downloadMbps = input.readLong();
}
if (version < 5) {
input.readBoolean(); // disableMtuDiscovery, removed
input.readInt(); // initStreamReceiveWindow, removed
input.readInt(); // maxStreamReceiveWindow, removed
input.readInt(); // initConnReceiveWindow, removed
input.readInt(); // maxConnReceiveWindow, removed
}
if (version < 2) {
serverPorts = serverPort.toString();
}
if (version >= 2) {
serverPorts = input.readString();
if (version == 2) {
hopInterval = (long) input.readInt();
} else {
hopInterval = input.readLong();
}
}
if (version >= 4) {
echConfig = input.readString();
if (version <= 5 && !echConfig.isEmpty()) {
echEnabled = true;
}
mtlsCertificate = input.readString();
mtlsCertificatePrivateKey = input.readString();
}
if (version >= 6) {
echEnabled = input.readBoolean();
}
if (version >= 7) {
hopIntervalMin = input.readLong();
hopIntervalMax = input.readLong();
congestionControl = input.readString();
bbrProfile = input.readString();
}
if (version >= 8) {
omitMaxDatagramFrameSize = input.readBoolean();
}
if (version >= 9) {
obfsType = input.readString();
switch (obfsType) {
case "salamander":
input.readInt(); // geckoMinPacketSize
input.readInt(); // geckoMaxPacketSize
geckoMinPacketSize = 0;
geckoMaxPacketSize = 0;
break;
case "gecko":
geckoMinPacketSize = input.readInt();
geckoMaxPacketSize = input.readInt();
break;
default:
input.readInt(); // geckoMinPacketSize
input.readInt(); // geckoMaxPacketSize
geckoMinPacketSize = 0;
geckoMaxPacketSize = 0;
obfsPassword = "";
break;
}
}
if (version >= 10) {
serverNameToVerify = input.readString();
}
}
@Override
public void applyFeatureSettings(AbstractBean other) {
if (!(other instanceof Hysteria2Bean bean)) return;
if (allowInsecure) {
bean.allowInsecure = true;
}
bean.uploadMbps = uploadMbps;
bean.downloadMbps = downloadMbps;
if (bean.pinnedPeerCertificateSha256 == null || bean.pinnedPeerCertificateSha256.isEmpty() && !pinnedPeerCertificateSha256.isEmpty()) {
bean.pinnedPeerCertificateSha256 = pinnedPeerCertificateSha256;
}
if (bean.pinnedPeerCertificatePublicKeySha256 == null || bean.pinnedPeerCertificatePublicKeySha256.isEmpty() &&
!pinnedPeerCertificatePublicKeySha256.isEmpty()) {
bean.pinnedPeerCertificatePublicKeySha256 = pinnedPeerCertificatePublicKeySha256;
}
if (bean.pinnedPeerCertificateChainSha256 == null || bean.pinnedPeerCertificateChainSha256.isEmpty() &&
!pinnedPeerCertificateChainSha256.isEmpty()) {
bean.pinnedPeerCertificateChainSha256 = pinnedPeerCertificateChainSha256;
}
if (bean.certificates == null || bean.certificates.isEmpty() && !certificates.isEmpty()) {
bean.certificates = certificates;
}
bean.echEnabled = echEnabled;
bean.echConfig = echConfig;
bean.hopInterval = hopInterval;
bean.hopIntervalMin = hopIntervalMin;
bean.hopIntervalMax = hopIntervalMax;
bean.congestionControl = congestionControl;
bean.bbrProfile = bbrProfile;
bean.omitMaxDatagramFrameSize = omitMaxDatagramFrameSize;
if (bean.geckoMinPacketSize == null || bean.geckoMinPacketSize == 0) {
bean.geckoMinPacketSize = geckoMinPacketSize;
}
if (bean.geckoMaxPacketSize == null || bean.geckoMaxPacketSize == 0) {
bean.geckoMaxPacketSize = geckoMaxPacketSize;
}
}
@Override
public String displayAddress() {
if (Libexclavecore.isIPv6(serverAddress)) {
return "[" + serverAddress + "]:" + serverPorts;
} else {
return NetsKt.wrapIDN(serverAddress) + ":" + serverPorts;
}
}
@NotNull
@Override
public Hysteria2Bean clone() {
return KryoConverters.deserialize(new Hysteria2Bean(), KryoConverters.serialize(this));
}
public static final Creator CREATOR = new CREATOR<>() {
@NonNull
@Override
public Hysteria2Bean newInstance() {
return new Hysteria2Bean();
}
@Override
public Hysteria2Bean[] newArray(int size) {
return new Hysteria2Bean[size];
}
};
@Override
public boolean isInsecure() {
if (Libexclavecore.isLoopbackIP(serverAddress) || serverAddress.equals("localhost")) {
return false;
}
if (echEnabled) {
// do not care if DNS server is reliable or not
return false;
}
if (!obfsPassword.isEmpty()) {
return false;
}
if (!allowInsecure) {
return false;
}
if (!pinnedPeerCertificateChainSha256.isEmpty()) {
return false;
}
if (!pinnedPeerCertificatePublicKeySha256.isEmpty()) {
return false;
}
if (!pinnedPeerCertificateSha256.isEmpty()) {
return false;
}
if (!serverNameToVerify.isEmpty()) {
return false;
}
return true;
}
}