mirror of
https://github.com/SagerNet/sing-box.git
synced 2024-11-16 12:02:22 +08:00
117 lines
3.7 KiB
Go
117 lines
3.7 KiB
Go
package inbound
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import (
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"context"
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"net"
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"os"
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"github.com/sagernet/sing-box/adapter"
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C "github.com/sagernet/sing-box/constant"
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"github.com/sagernet/sing-box/log"
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"github.com/sagernet/sing-box/option"
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"github.com/sagernet/sing-shadowsocks/shadowaead_2022"
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"github.com/sagernet/sing/common"
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"github.com/sagernet/sing/common/auth"
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"github.com/sagernet/sing/common/buf"
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F "github.com/sagernet/sing/common/format"
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N "github.com/sagernet/sing/common/network"
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)
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var (
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_ adapter.Inbound = (*ShadowsocksMulti)(nil)
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_ adapter.InjectableInbound = (*ShadowsocksMulti)(nil)
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)
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type ShadowsocksMulti struct {
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myInboundAdapter
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service *shadowaead_2022.MultiService[int]
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users []option.ShadowsocksUser
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}
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func newShadowsocksMulti(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.ShadowsocksInboundOptions) (*ShadowsocksMulti, error) {
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inbound := &ShadowsocksMulti{
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myInboundAdapter: myInboundAdapter{
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protocol: C.TypeShadowsocks,
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network: options.Network.Build(),
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ctx: ctx,
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router: router,
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logger: logger,
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tag: tag,
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listenOptions: options.ListenOptions,
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},
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}
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inbound.connHandler = inbound
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inbound.packetHandler = inbound
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var udpTimeout int64
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if options.UDPTimeout != 0 {
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udpTimeout = options.UDPTimeout
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} else {
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udpTimeout = int64(C.UDPTimeout.Seconds())
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}
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service, err := shadowaead_2022.NewMultiServiceWithPassword[int](
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options.Method,
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options.Password,
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udpTimeout,
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adapter.NewUpstreamContextHandler(inbound.newConnection, inbound.newPacketConnection, inbound),
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)
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if err != nil {
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return nil, err
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}
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err = service.UpdateUsersWithPasswords(common.MapIndexed(options.Users, func(index int, user option.ShadowsocksUser) int {
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return index
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}), common.Map(options.Users, func(user option.ShadowsocksUser) string {
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return user.Password
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}))
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if err != nil {
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return nil, err
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}
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inbound.service = service
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inbound.packetUpstream = service
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inbound.users = options.Users
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return inbound, err
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}
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func (h *ShadowsocksMulti) NewConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
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return h.service.NewConnection(adapter.WithContext(log.ContextWithNewID(ctx), &metadata), conn, adapter.UpstreamMetadata(metadata))
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}
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func (h *ShadowsocksMulti) NewPacket(ctx context.Context, conn N.PacketConn, buffer *buf.Buffer, metadata adapter.InboundContext) error {
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return h.service.NewPacket(adapter.WithContext(ctx, &metadata), conn, buffer, adapter.UpstreamMetadata(metadata))
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}
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func (h *ShadowsocksMulti) NewPacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext) error {
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return os.ErrInvalid
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}
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func (h *ShadowsocksMulti) newConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
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userIndex, loaded := auth.UserFromContext[int](ctx)
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if !loaded {
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return os.ErrInvalid
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}
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user := h.users[userIndex].Name
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if user == "" {
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user = F.ToString(userIndex)
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} else {
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metadata.User = user
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}
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h.logger.InfoContext(ctx, "[", user, "] inbound connection to ", metadata.Destination)
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return h.router.RouteConnection(ctx, conn, metadata)
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}
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func (h *ShadowsocksMulti) newPacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext) error {
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userIndex, loaded := auth.UserFromContext[int](ctx)
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if !loaded {
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return os.ErrInvalid
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}
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user := h.users[userIndex].Name
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if user == "" {
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user = F.ToString(userIndex)
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} else {
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metadata.User = user
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}
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ctx = log.ContextWithNewID(ctx)
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h.logger.InfoContext(ctx, "[", user, "] inbound packet connection from ", metadata.Source)
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h.logger.InfoContext(ctx, "[", user, "] inbound packet connection to ", metadata.Destination)
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return h.router.RoutePacketConnection(ctx, conn, metadata)
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}
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