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This restores bitswap setup we had in v1.0.0 where only the client is initialized by default.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,122 @@ | ||
| package main | ||
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||
| import ( | ||
| "context" | ||
| "time" | ||
|
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| "github.com/ipfs/boxo/bitswap" | ||
| bsclient "github.com/ipfs/boxo/bitswap/client" | ||
| wl "github.com/ipfs/boxo/bitswap/client/wantlist" | ||
| bsmspb "github.com/ipfs/boxo/bitswap/message/pb" | ||
| bsnet "github.com/ipfs/boxo/bitswap/network" | ||
| bsserver "github.com/ipfs/boxo/bitswap/server" | ||
| "github.com/ipfs/boxo/blockstore" | ||
| "github.com/ipfs/boxo/exchange" | ||
| blocks "github.com/ipfs/go-block-format" | ||
| "github.com/ipfs/go-cid" | ||
| delay "github.com/ipfs/go-ipfs-delay" | ||
| metri "github.com/ipfs/go-metrics-interface" | ||
| "github.com/libp2p/go-libp2p/core/host" | ||
| "github.com/libp2p/go-libp2p/core/peer" | ||
| "github.com/libp2p/go-libp2p/core/routing" | ||
| ) | ||
|
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| func setupBitswapExchange(ctx context.Context, cfg Config, h host.Host, cr routing.ContentRouting, bstore blockstore.Blockstore) exchange.Interface { | ||
| bsctx := metri.CtxScope(ctx, "ipfs_bitswap") | ||
| bn := bsnet.NewFromIpfsHost(h, cr) | ||
|
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| // --- Client Options | ||
| // bitswap.RebroadcastDelay: default is 1 minute to search for a random | ||
| // live-want (1 CID). I think we want to search for random live-wants more | ||
| // often although probably it overlaps with general rebroadcasts. | ||
| rebroadcastDelay := delay.Fixed(10 * time.Second) | ||
| // bitswap.ProviderSearchDelay: default is 1 second. | ||
| providerSearchDelay := 1 * time.Second | ||
|
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| // If peering and shared cache are both enabled, we initialize both a | ||
| // Client and a Server with custom request filter and custom options. | ||
| // client+server is more expensive but necessary when deployment requires | ||
| // serving cached blocks to safelisted peerids | ||
| if cfg.PeeringSharedCache && len(cfg.Peering) > 0 { | ||
| var peerBlockRequestFilter bsserver.PeerBlockRequestFilter | ||
|
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| // Set up request filter to only respond to request for safelisted (peered) nodes | ||
| peers := make(map[peer.ID]struct{}, len(cfg.Peering)) | ||
| for _, a := range cfg.Peering { | ||
| peers[a.ID] = struct{}{} | ||
| } | ||
| peerBlockRequestFilter = func(p peer.ID, c cid.Cid) bool { | ||
| _, ok := peers[p] | ||
| return ok | ||
| } | ||
|
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| // Initialize client+server | ||
| bswap := bitswap.New(bsctx, bn, bstore, | ||
| // --- Client Options | ||
| bitswap.RebroadcastDelay(rebroadcastDelay), | ||
| bitswap.ProviderSearchDelay(providerSearchDelay), | ||
| bitswap.WithoutDuplicatedBlockStats(), | ||
|
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| // ---- Server Options | ||
| bitswap.WithPeerBlockRequestFilter(peerBlockRequestFilter), | ||
| bitswap.ProvideEnabled(false), | ||
| // Do not keep track of other peer's wantlists, we only want to reply if we | ||
| // have a block. If we get it later, it's no longer relevant. | ||
| bitswap.WithPeerLedger(&noopPeerLedger{}), | ||
| // When we don't have a block, don't reply. This reduces processment. | ||
| bitswap.SetSendDontHaves(false), | ||
| ) | ||
| bn.Start(bswap) | ||
| return &noNotifyExchange{bswap} | ||
| } | ||
|
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| // By default, rainbow runs with bitswap client alone | ||
| bswap := bsclient.New(bsctx, bn, bstore, | ||
| // --- Client Options | ||
| bsclient.RebroadcastDelay(rebroadcastDelay), | ||
| bsclient.ProviderSearchDelay(providerSearchDelay), | ||
| bsclient.WithoutDuplicatedBlockStats(), | ||
| ) | ||
| bn.Start(bswap) | ||
| return bswap | ||
| } | ||
|
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| type noopPeerLedger struct{} | ||
|
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| func (*noopPeerLedger) Wants(p peer.ID, e wl.Entry) {} | ||
|
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| func (*noopPeerLedger) CancelWant(p peer.ID, k cid.Cid) bool { | ||
| return false | ||
| } | ||
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| func (*noopPeerLedger) CancelWantWithType(p peer.ID, k cid.Cid, typ bsmspb.Message_Wantlist_WantType) { | ||
| } | ||
|
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| func (*noopPeerLedger) Peers(k cid.Cid) []bsserver.PeerEntry { | ||
| return nil | ||
| } | ||
|
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| func (*noopPeerLedger) CollectPeerIDs() []peer.ID { | ||
| return nil | ||
| } | ||
|
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| func (*noopPeerLedger) WantlistSizeForPeer(p peer.ID) int { | ||
| return 0 | ||
| } | ||
|
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| func (*noopPeerLedger) WantlistForPeer(p peer.ID) []wl.Entry { | ||
| return nil | ||
| } | ||
|
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| func (*noopPeerLedger) ClearPeerWantlist(p peer.ID) {} | ||
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| func (*noopPeerLedger) PeerDisconnected(p peer.ID) {} | ||
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| type noNotifyExchange struct { | ||
| exchange.Interface | ||
| } | ||
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| func (e *noNotifyExchange) NotifyNewBlocks(ctx context.Context, blocks ...blocks.Block) error { | ||
| // Rainbow does not notify when we get new blocks in our Blockservice. | ||
| return nil | ||
| } |
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