v2rayN/v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayOutboundService.cs
2025-09-29 16:43:56 +08:00

795 lines
31 KiB
C#

namespace ServiceLib.Services.CoreConfig;
public partial class CoreConfigV2rayService
{
private async Task<int> GenOutbound(ProfileItem node, Outbounds4Ray outbound)
{
try
{
var muxEnabled = node.MuxEnabled ?? _config.CoreBasicItem.MuxEnabled;
switch (node.ConfigType)
{
case EConfigType.VMess:
{
VnextItem4Ray vnextItem;
if (outbound.settings.vnext.Count <= 0)
{
vnextItem = new VnextItem4Ray();
outbound.settings.vnext.Add(vnextItem);
}
else
{
vnextItem = outbound.settings.vnext.First();
}
vnextItem.address = node.Address;
vnextItem.port = node.Port;
UsersItem4Ray usersItem;
if (vnextItem.users.Count <= 0)
{
usersItem = new UsersItem4Ray();
vnextItem.users.Add(usersItem);
}
else
{
usersItem = vnextItem.users.First();
}
usersItem.id = node.Id;
usersItem.alterId = node.AlterId;
usersItem.email = Global.UserEMail;
if (Global.VmessSecurities.Contains(node.Security))
{
usersItem.security = node.Security;
}
else
{
usersItem.security = Global.DefaultSecurity;
}
await GenOutboundMux(node, outbound, muxEnabled, muxEnabled);
outbound.settings.servers = null;
break;
}
case EConfigType.Shadowsocks:
{
ServersItem4Ray serversItem;
if (outbound.settings.servers.Count <= 0)
{
serversItem = new ServersItem4Ray();
outbound.settings.servers.Add(serversItem);
}
else
{
serversItem = outbound.settings.servers.First();
}
serversItem.address = node.Address;
serversItem.port = node.Port;
serversItem.password = node.Id;
serversItem.method = AppManager.Instance.GetShadowsocksSecurities(node).Contains(node.Security) ? node.Security : "none";
serversItem.ota = false;
serversItem.level = 1;
await GenOutboundMux(node, outbound);
outbound.settings.vnext = null;
break;
}
case EConfigType.SOCKS:
case EConfigType.HTTP:
{
ServersItem4Ray serversItem;
if (outbound.settings.servers.Count <= 0)
{
serversItem = new ServersItem4Ray();
outbound.settings.servers.Add(serversItem);
}
else
{
serversItem = outbound.settings.servers.First();
}
serversItem.address = node.Address;
serversItem.port = node.Port;
serversItem.method = null;
serversItem.password = null;
if (node.Security.IsNotEmpty()
&& node.Id.IsNotEmpty())
{
SocksUsersItem4Ray socksUsersItem = new()
{
user = node.Security,
pass = node.Id,
level = 1
};
serversItem.users = new List<SocksUsersItem4Ray>() { socksUsersItem };
}
await GenOutboundMux(node, outbound);
outbound.settings.vnext = null;
break;
}
case EConfigType.VLESS:
{
VnextItem4Ray vnextItem;
if (outbound.settings.vnext?.Count <= 0)
{
vnextItem = new VnextItem4Ray();
outbound.settings.vnext.Add(vnextItem);
}
else
{
vnextItem = outbound.settings.vnext.First();
}
vnextItem.address = node.Address;
vnextItem.port = node.Port;
UsersItem4Ray usersItem;
if (vnextItem.users.Count <= 0)
{
usersItem = new UsersItem4Ray();
vnextItem.users.Add(usersItem);
}
else
{
usersItem = vnextItem.users.First();
}
usersItem.id = node.Id;
usersItem.email = Global.UserEMail;
usersItem.encryption = node.Security;
if (node.Flow.IsNullOrEmpty())
{
await GenOutboundMux(node, outbound, muxEnabled, muxEnabled);
}
else
{
usersItem.flow = node.Flow;
await GenOutboundMux(node, outbound, false, muxEnabled);
}
outbound.settings.servers = null;
break;
}
case EConfigType.Trojan:
{
ServersItem4Ray serversItem;
if (outbound.settings.servers.Count <= 0)
{
serversItem = new ServersItem4Ray();
outbound.settings.servers.Add(serversItem);
}
else
{
serversItem = outbound.settings.servers.First();
}
serversItem.address = node.Address;
serversItem.port = node.Port;
serversItem.password = node.Id;
serversItem.ota = false;
serversItem.level = 1;
await GenOutboundMux(node, outbound);
outbound.settings.vnext = null;
break;
}
case EConfigType.WireGuard:
{
var peer = new WireguardPeer4Ray
{
publicKey = node.PublicKey,
endpoint = node.Address + ":" + node.Port.ToString()
};
var setting = new Outboundsettings4Ray
{
address = Utils.String2List(node.RequestHost),
secretKey = node.Id,
reserved = Utils.String2List(node.Path)?.Select(int.Parse).ToList(),
mtu = node.ShortId.IsNullOrEmpty() ? Global.TunMtus.First() : node.ShortId.ToInt(),
peers = new List<WireguardPeer4Ray> { peer }
};
outbound.settings = setting;
outbound.settings.vnext = null;
outbound.settings.servers = null;
break;
}
}
outbound.protocol = Global.ProtocolTypes[node.ConfigType];
await GenBoundStreamSettings(node, outbound);
}
catch (Exception ex)
{
Logging.SaveLog(_tag, ex);
}
return 0;
}
private async Task<int> GenOutboundMux(ProfileItem node, Outbounds4Ray outbound, bool enabledTCP = false, bool enabledUDP = false)
{
try
{
outbound.mux.enabled = false;
outbound.mux.concurrency = -1;
if (enabledTCP)
{
outbound.mux.enabled = true;
outbound.mux.concurrency = _config.Mux4RayItem.Concurrency;
}
else if (enabledUDP)
{
outbound.mux.enabled = true;
outbound.mux.xudpConcurrency = _config.Mux4RayItem.XudpConcurrency;
outbound.mux.xudpProxyUDP443 = _config.Mux4RayItem.XudpProxyUDP443;
}
}
catch (Exception ex)
{
Logging.SaveLog(_tag, ex);
}
return await Task.FromResult(0);
}
private async Task<int> GenBoundStreamSettings(ProfileItem node, Outbounds4Ray outbound)
{
try
{
var streamSettings = outbound.streamSettings;
streamSettings.network = node.GetNetwork();
var host = node.RequestHost.TrimEx();
var path = node.Path.TrimEx();
var sni = node.Sni.TrimEx();
var useragent = "";
if (!_config.CoreBasicItem.DefUserAgent.IsNullOrEmpty())
{
try
{
useragent = Global.UserAgentTexts[_config.CoreBasicItem.DefUserAgent];
}
catch (KeyNotFoundException)
{
useragent = _config.CoreBasicItem.DefUserAgent;
}
}
//if tls
if (node.StreamSecurity == Global.StreamSecurity)
{
streamSettings.security = node.StreamSecurity;
TlsSettings4Ray tlsSettings = new()
{
allowInsecure = Utils.ToBool(node.AllowInsecure.IsNullOrEmpty() ? _config.CoreBasicItem.DefAllowInsecure.ToString().ToLower() : node.AllowInsecure),
alpn = node.GetAlpn(),
fingerprint = node.Fingerprint.IsNullOrEmpty() ? _config.CoreBasicItem.DefFingerprint : node.Fingerprint
};
if (sni.IsNotEmpty())
{
tlsSettings.serverName = sni;
}
else if (host.IsNotEmpty())
{
tlsSettings.serverName = Utils.String2List(host)?.First();
}
streamSettings.tlsSettings = tlsSettings;
}
//if Reality
if (node.StreamSecurity == Global.StreamSecurityReality)
{
streamSettings.security = node.StreamSecurity;
TlsSettings4Ray realitySettings = new()
{
fingerprint = node.Fingerprint.IsNullOrEmpty() ? _config.CoreBasicItem.DefFingerprint : node.Fingerprint,
serverName = sni,
publicKey = node.PublicKey,
shortId = node.ShortId,
spiderX = node.SpiderX,
mldsa65Verify = node.Mldsa65Verify,
show = false,
};
streamSettings.realitySettings = realitySettings;
}
//streamSettings
switch (node.GetNetwork())
{
case nameof(ETransport.kcp):
KcpSettings4Ray kcpSettings = new()
{
mtu = _config.KcpItem.Mtu,
tti = _config.KcpItem.Tti
};
kcpSettings.uplinkCapacity = _config.KcpItem.UplinkCapacity;
kcpSettings.downlinkCapacity = _config.KcpItem.DownlinkCapacity;
kcpSettings.congestion = _config.KcpItem.Congestion;
kcpSettings.readBufferSize = _config.KcpItem.ReadBufferSize;
kcpSettings.writeBufferSize = _config.KcpItem.WriteBufferSize;
kcpSettings.header = new Header4Ray
{
type = node.HeaderType,
domain = host.IsNullOrEmpty() ? null : host
};
if (path.IsNotEmpty())
{
kcpSettings.seed = path;
}
streamSettings.kcpSettings = kcpSettings;
break;
//ws
case nameof(ETransport.ws):
WsSettings4Ray wsSettings = new();
wsSettings.headers = new Headers4Ray();
if (host.IsNotEmpty())
{
wsSettings.host = host;
wsSettings.headers.Host = host;
}
if (path.IsNotEmpty())
{
wsSettings.path = path;
}
if (useragent.IsNotEmpty())
{
wsSettings.headers.UserAgent = useragent;
}
streamSettings.wsSettings = wsSettings;
break;
//httpupgrade
case nameof(ETransport.httpupgrade):
HttpupgradeSettings4Ray httpupgradeSettings = new();
if (path.IsNotEmpty())
{
httpupgradeSettings.path = path;
}
if (host.IsNotEmpty())
{
httpupgradeSettings.host = host;
}
streamSettings.httpupgradeSettings = httpupgradeSettings;
break;
//xhttp
case nameof(ETransport.xhttp):
streamSettings.network = ETransport.xhttp.ToString();
XhttpSettings4Ray xhttpSettings = new();
if (path.IsNotEmpty())
{
xhttpSettings.path = path;
}
if (host.IsNotEmpty())
{
xhttpSettings.host = host;
}
if (node.HeaderType.IsNotEmpty() && Global.XhttpMode.Contains(node.HeaderType))
{
xhttpSettings.mode = node.HeaderType;
}
if (node.Extra.IsNotEmpty())
{
xhttpSettings.extra = JsonUtils.ParseJson(node.Extra);
}
streamSettings.xhttpSettings = xhttpSettings;
await GenOutboundMux(node, outbound);
break;
//h2
case nameof(ETransport.h2):
HttpSettings4Ray httpSettings = new();
if (host.IsNotEmpty())
{
httpSettings.host = Utils.String2List(host);
}
httpSettings.path = path;
streamSettings.httpSettings = httpSettings;
break;
//quic
case nameof(ETransport.quic):
QuicSettings4Ray quicsettings = new()
{
security = host,
key = path,
header = new Header4Ray
{
type = node.HeaderType
}
};
streamSettings.quicSettings = quicsettings;
if (node.StreamSecurity == Global.StreamSecurity)
{
if (sni.IsNotEmpty())
{
streamSettings.tlsSettings.serverName = sni;
}
else
{
streamSettings.tlsSettings.serverName = node.Address;
}
}
break;
case nameof(ETransport.grpc):
GrpcSettings4Ray grpcSettings = new()
{
authority = host.IsNullOrEmpty() ? null : host,
serviceName = path,
multiMode = node.HeaderType == Global.GrpcMultiMode,
idle_timeout = _config.GrpcItem.IdleTimeout,
health_check_timeout = _config.GrpcItem.HealthCheckTimeout,
permit_without_stream = _config.GrpcItem.PermitWithoutStream,
initial_windows_size = _config.GrpcItem.InitialWindowsSize,
};
streamSettings.grpcSettings = grpcSettings;
break;
default:
//tcp
if (node.HeaderType == Global.TcpHeaderHttp)
{
TcpSettings4Ray tcpSettings = new()
{
header = new Header4Ray
{
type = node.HeaderType
}
};
//request Host
string request = EmbedUtils.GetEmbedText(Global.V2raySampleHttpRequestFileName);
string[] arrHost = host.Split(',');
string host2 = string.Join(",".AppendQuotes(), arrHost);
request = request.Replace("$requestHost$", $"{host2.AppendQuotes()}");
request = request.Replace("$requestUserAgent$", $"{useragent.AppendQuotes()}");
//Path
string pathHttp = @"/";
if (path.IsNotEmpty())
{
string[] arrPath = path.Split(',');
pathHttp = string.Join(",".AppendQuotes(), arrPath);
}
request = request.Replace("$requestPath$", $"{pathHttp.AppendQuotes()}");
tcpSettings.header.request = JsonUtils.Deserialize<object>(request);
streamSettings.tcpSettings = tcpSettings;
}
break;
}
}
catch (Exception ex)
{
Logging.SaveLog(_tag, ex);
}
return 0;
}
private async Task<int> GenMoreOutbounds(ProfileItem node, V2rayConfig v2rayConfig)
{
//fragment proxy
if (_config.CoreBasicItem.EnableFragment
&& v2rayConfig.outbounds.First().streamSettings?.security.IsNullOrEmpty() == false)
{
var fragmentOutbound = new Outbounds4Ray
{
protocol = "freedom",
tag = $"{Global.ProxyTag}3",
settings = new()
{
fragment = new()
{
packets = _config.Fragment4RayItem?.Packets,
length = _config.Fragment4RayItem?.Length,
interval = _config.Fragment4RayItem?.Interval
}
}
};
v2rayConfig.outbounds.Add(fragmentOutbound);
v2rayConfig.outbounds.First().streamSettings.sockopt = new()
{
dialerProxy = fragmentOutbound.tag
};
return 0;
}
if (node.Subid.IsNullOrEmpty())
{
return 0;
}
try
{
var subItem = await AppManager.Instance.GetSubItem(node.Subid);
if (subItem is null)
{
return 0;
}
//current proxy
var outbound = v2rayConfig.outbounds.First();
var txtOutbound = EmbedUtils.GetEmbedText(Global.V2raySampleOutbound);
//Previous proxy
var prevNode = await AppManager.Instance.GetProfileItemViaRemarks(subItem.PrevProfile);
string? prevOutboundTag = null;
if (prevNode is not null
&& Global.XraySupportConfigType.Contains(prevNode.ConfigType))
{
var prevOutbound = JsonUtils.Deserialize<Outbounds4Ray>(txtOutbound);
await GenOutbound(prevNode, prevOutbound);
prevOutboundTag = $"prev-{Global.ProxyTag}";
prevOutbound.tag = prevOutboundTag;
v2rayConfig.outbounds.Add(prevOutbound);
}
var nextOutbound = await GenChainOutbounds(subItem, outbound, prevOutboundTag);
if (nextOutbound is not null)
{
v2rayConfig.outbounds.Insert(0, nextOutbound);
}
}
catch (Exception ex)
{
Logging.SaveLog(_tag, ex);
}
return 0;
}
private async Task<int> GenOutboundsListWithChain(List<ProfileItem> nodes, V2rayConfig v2rayConfig, string baseTagName = Global.ProxyTag)
{
try
{
// Get template and initialize list
var txtOutbound = EmbedUtils.GetEmbedText(Global.V2raySampleOutbound);
if (txtOutbound.IsNullOrEmpty())
{
return 0;
}
var resultOutbounds = new List<Outbounds4Ray>();
var prevOutbounds = new List<Outbounds4Ray>(); // Separate list for prev outbounds and fragment
// Cache for chain proxies to avoid duplicate generation
var nextProxyCache = new Dictionary<string, Outbounds4Ray?>();
var prevProxyTags = new Dictionary<string, string?>(); // Map from profile name to tag
int prevIndex = 0; // Index for prev outbounds
// Process nodes
int index = 0;
foreach (var node in nodes)
{
index++;
if (node.ConfigType is EConfigType.PolicyGroup or EConfigType.ProxyChain)
{
ProfileGroupItemManager.Instance.TryGet(node.IndexId, out var profileGroupItem);
if (profileGroupItem == null || profileGroupItem.ChildItems.IsNullOrEmpty())
{
continue;
}
var childProfiles = (await Task.WhenAll(
Utils.String2List(profileGroupItem.ChildItems)
.Where(p => !p.IsNullOrEmpty())
.Select(AppManager.Instance.GetProfileItem)
)).Where(p => p != null).ToList();
if (childProfiles.Count <= 0)
{
continue;
}
var childBaseTagName = $"{baseTagName}-{index}";
var ret = node.ConfigType switch
{
EConfigType.PolicyGroup =>
await GenOutboundsListWithChain(childProfiles, v2rayConfig, childBaseTagName),
EConfigType.ProxyChain =>
await GenChainOutboundsList(childProfiles, v2rayConfig, childBaseTagName),
_ => throw new NotImplementedException()
};
continue;
}
// Handle proxy chain
string? prevTag = null;
var currentOutbound = JsonUtils.Deserialize<Outbounds4Ray>(txtOutbound);
var nextOutbound = nextProxyCache.GetValueOrDefault(node.Subid, null);
if (nextOutbound != null)
{
nextOutbound = JsonUtils.DeepCopy(nextOutbound);
}
var subItem = await AppManager.Instance.GetSubItem(node.Subid);
// current proxy
await GenOutbound(node, currentOutbound);
currentOutbound.tag = $"{baseTagName}-{index}";
if (!node.Subid.IsNullOrEmpty())
{
if (prevProxyTags.TryGetValue(node.Subid, out var value))
{
prevTag = value; // maybe null
}
else
{
var prevNode = await AppManager.Instance.GetProfileItemViaRemarks(subItem.PrevProfile);
if (prevNode is not null
&& Global.XraySupportConfigType.Contains(prevNode.ConfigType))
{
var prevOutbound = JsonUtils.Deserialize<Outbounds4Ray>(txtOutbound);
await GenOutbound(prevNode, prevOutbound);
prevTag = $"prev-{baseTagName}-{++prevIndex}";
prevOutbound.tag = prevTag;
prevOutbounds.Add(prevOutbound);
}
prevProxyTags[node.Subid] = prevTag;
}
nextOutbound = await GenChainOutbounds(subItem, currentOutbound, prevTag, nextOutbound);
if (!nextProxyCache.ContainsKey(node.Subid))
{
nextProxyCache[node.Subid] = nextOutbound;
}
}
if (nextOutbound is not null)
{
resultOutbounds.Add(nextOutbound);
}
resultOutbounds.Add(currentOutbound);
}
// Merge results: first the main chain outbounds, then other outbounds, and finally utility outbounds
resultOutbounds.AddRange(prevOutbounds);
resultOutbounds.AddRange(v2rayConfig.outbounds);
v2rayConfig.outbounds = resultOutbounds;
}
catch (Exception ex)
{
Logging.SaveLog(_tag, ex);
}
return 0;
}
/// <summary>
/// Generates a chained outbound configuration for the given subItem and outbound.
/// The outbound's tag must be set before calling this method.
/// Returns the next proxy's outbound configuration, which may be null if no next proxy exists.
/// </summary>
/// <param name="subItem">The subscription item containing proxy chain information.</param>
/// <param name="outbound">The current outbound configuration. Its tag must be set before calling this method.</param>
/// <param name="prevOutboundTag">The tag of the previous outbound in the chain, if any.</param>
/// <param name="nextOutbound">The outbound for the next proxy in the chain, if already created. If null, will be created inside.</param>
/// <returns>
/// The outbound configuration for the next proxy in the chain, or null if no next proxy exists.
/// </returns>
private async Task<Outbounds4Ray?> GenChainOutbounds(SubItem subItem, Outbounds4Ray outbound, string? prevOutboundTag, Outbounds4Ray? nextOutbound = null)
{
try
{
var txtOutbound = EmbedUtils.GetEmbedText(Global.V2raySampleOutbound);
if (!prevOutboundTag.IsNullOrEmpty())
{
outbound.streamSettings.sockopt = new()
{
dialerProxy = prevOutboundTag
};
}
// Next proxy
var nextNode = await AppManager.Instance.GetProfileItemViaRemarks(subItem.NextProfile);
if (nextNode is not null
&& Global.XraySupportConfigType.Contains(nextNode.ConfigType))
{
if (nextOutbound == null)
{
nextOutbound = JsonUtils.Deserialize<Outbounds4Ray>(txtOutbound);
await GenOutbound(nextNode, nextOutbound);
}
nextOutbound.tag = outbound.tag;
outbound.tag = $"mid-{outbound.tag}";
nextOutbound.streamSettings.sockopt = new()
{
dialerProxy = outbound.tag
};
}
return nextOutbound;
}
catch (Exception ex)
{
Logging.SaveLog(_tag, ex);
}
return null;
}
private async Task<int> GenOutboundsList(List<ProfileItem> nodes, V2rayConfig v2rayConfig, string baseTagName = Global.ProxyTag)
{
var resultOutbounds = new List<Outbounds4Ray>();
for (var i = 0; i < nodes.Count; i++)
{
var node = nodes[i];
var txtOutbound = EmbedUtils.GetEmbedText(Global.V2raySampleOutbound);
if (txtOutbound.IsNullOrEmpty())
{
break;
}
var outbound = JsonUtils.Deserialize<Outbounds4Ray>(txtOutbound);
var result = await GenOutbound(node, outbound);
if (result != 0)
{
break;
}
outbound.tag = baseTagName + (i + 1).ToString();
resultOutbounds.Add(outbound);
}
v2rayConfig.outbounds ??= new();
resultOutbounds.AddRange(v2rayConfig.outbounds);
v2rayConfig.outbounds = resultOutbounds;
return await Task.FromResult(0);
}
private async Task<int> GenChainOutboundsList(List<ProfileItem> nodes, V2rayConfig v2RayConfig, string baseTagName = Global.ProxyTag)
{
var resultOutbounds = new List<Outbounds4Ray>();
for (var i = 0; i < nodes.Count; i++)
{
var node = nodes[i];
var txtOutbound = EmbedUtils.GetEmbedText(Global.V2raySampleOutbound);
if (txtOutbound.IsNullOrEmpty())
{
break;
}
var outbound = JsonUtils.Deserialize<Outbounds4Ray>(txtOutbound);
var result = await GenOutbound(node, outbound);
if (result != 0)
{
break;
}
if (i == 0)
{
outbound.tag = baseTagName;
}
else
{
// avoid v2ray observe
outbound.tag = "chain-" + baseTagName + i.ToString();
}
if (i != nodes.Count - 1)
{
outbound.streamSettings.sockopt = new()
{
dialerProxy = "chain-" + baseTagName + (i + 1).ToString()
};
}
resultOutbounds.Add(outbound);
}
v2RayConfig.outbounds ??= new();
resultOutbounds.AddRange(v2RayConfig.outbounds);
v2RayConfig.outbounds = resultOutbounds;
return await Task.FromResult(0);
}
}