75 lines
1.9 KiB
Go
75 lines
1.9 KiB
Go
// SPDX-FileCopyrightText: 2021 The NGI Pointer Secure-Scuttlebutt Team of 2020/2021
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//
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// SPDX-License-Identifier: MIT
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package roomsrv
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import (
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"fmt"
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"net"
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"github.com/ssbc/go-muxrpc/v2"
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"github.com/ssbc/go-ssb-room/v2/internal/network"
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"github.com/ssbc/go-ssb-room/v2/roomdb"
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)
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// opens the shs listener for TCP connections
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func (s *Server) initNetwork() error {
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// muxrpc handler creation and authoratization decider
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mkHandler := func(conn net.Conn) (muxrpc.Handler, error) {
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s.closedMu.Lock()
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defer s.closedMu.Unlock()
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remote, err := network.GetFeedRefFromAddr(conn.RemoteAddr())
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if err != nil {
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return nil, fmt.Errorf("sbot: expected an address containing an shs-bs addr: %w", err)
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}
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if s.keyPair.Feed.Equal(remote) {
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return &s.master, nil
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}
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pm, err := s.Config.GetPrivacyMode(s.rootCtx)
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if err != nil {
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return nil, fmt.Errorf("running with unknown privacy mode")
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}
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// if privacy mode is restricted, deny connections from non-members
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if pm == roomdb.ModeRestricted {
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if _, err := s.Members.GetByFeed(s.rootCtx, remote); err != nil {
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return nil, fmt.Errorf("access restricted to members")
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}
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}
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// if feed is in the deny list, deny their connection
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if s.DeniedKeys.HasFeed(s.rootCtx, remote) {
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return nil, fmt.Errorf("this key has been banned")
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}
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// for community + open modes, allow all connections
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return &s.public, nil
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}
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// tcp+shs
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opts := network.Options{
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Logger: s.logger,
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Dialer: s.dialer,
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ListenAddr: s.listenAddr,
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KeyPair: s.keyPair,
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AppKey: s.appKey[:],
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MakeHandler: mkHandler,
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ConnTracker: s.networkConnTracker,
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BefreCryptoWrappers: s.preSecureWrappers,
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AfterSecureWrappers: s.postSecureWrappers,
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}
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var err error
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s.Network, err = network.New(opts)
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if err != nil {
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return fmt.Errorf("failed to create network node: %w", err)
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}
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return nil
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}
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