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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| // Copyright 2023 The Accumulate Authors | ||
| // | ||
| // Use of this source code is governed by an MIT-style | ||
| // license that can be found in the LICENSE file or at | ||
| // https://opensource.org/licenses/MIT. | ||
|
|
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| package healing | ||
|
|
||
| import ( | ||
| "context" | ||
| "strings" | ||
| "time" | ||
|
|
||
| "gitlab.com/accumulatenetwork/accumulate/pkg/api/v3" | ||
| "gitlab.com/accumulatenetwork/accumulate/pkg/api/v3/message" | ||
| "gitlab.com/accumulatenetwork/accumulate/pkg/errors" | ||
| "gitlab.com/accumulatenetwork/accumulate/pkg/types/messaging" | ||
| "gitlab.com/accumulatenetwork/accumulate/pkg/url" | ||
| "gitlab.com/accumulatenetwork/accumulate/protocol" | ||
| "golang.org/x/exp/slog" | ||
| ) | ||
|
|
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| type SequencedInfo struct { | ||
| Source string | ||
| Destination string | ||
| Number uint64 | ||
| ID *url.TxID | ||
| } | ||
|
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| // ResolveSequenced resolves an anchor or synthetic message (a sequenced | ||
| // message). If the client's address is non-nil, the query will be sent to that | ||
| // address. Otherwise, all of the source partition's nodes will be queried in | ||
| // order until one responds. | ||
| func ResolveSequenced[T messaging.Message](ctx context.Context, client message.AddressedClient, net *NetworkInfo, srcId, dstId string, seqNum uint64, anchor bool) (*api.MessageRecord[T], error) { | ||
| srcUrl := protocol.PartitionUrl(srcId) | ||
| dstUrl := protocol.PartitionUrl(dstId) | ||
|
|
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| var account string | ||
| if anchor { | ||
| account = protocol.AnchorPool | ||
| } else { | ||
| account = protocol.Synthetic | ||
| } | ||
|
|
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| // If the client has an address, use that | ||
| if client.Address != nil { | ||
| slog.InfoCtx(ctx, "Querying node", "address", client.Address) | ||
| res, err := client.Private().Sequence(ctx, srcUrl.JoinPath(account), dstUrl, seqNum) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| r2, err := api.MessageRecordAs[T](res) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return r2, nil | ||
| } | ||
|
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| // Otherwise try each node until one succeeds | ||
| slog.InfoCtx(ctx, "Resolving the message ID", "source", srcId, "destination", dstId, "number", seqNum) | ||
| for peer := range net.Peers[strings.ToLower(srcId)] { | ||
| ctx, cancel := context.WithTimeout(ctx, 5*time.Minute) | ||
| defer cancel() | ||
|
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| slog.InfoCtx(ctx, "Querying node", "id", peer) | ||
| res, err := client.ForPeer(peer).Private().Sequence(ctx, srcUrl.JoinPath(account), dstUrl, seqNum) | ||
| if err != nil { | ||
| slog.ErrorCtx(ctx, "Query failed", "error", err) | ||
| continue | ||
| } | ||
|
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| r2, err := api.MessageRecordAs[T](res) | ||
| if err != nil { | ||
| slog.ErrorCtx(ctx, "Query failed", "error", err) | ||
| continue | ||
| } | ||
|
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| return r2, nil | ||
| } | ||
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| return nil, errors.UnknownError.WithFormat("cannot resolve %s→%s #%d", srcId, dstId, seqNum) | ||
| } |
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