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lightningnetwork / lnd / 13035292482

29 Jan 2025 03:59PM UTC coverage: 49.3% (-9.5%) from 58.777%
13035292482

Pull #9456

github

mohamedawnallah
docs: update release-notes-0.19.0.md

In this commit, we warn users about the removal
of RPCs `SendToRoute`, `SendToRouteSync`, `SendPayment`,
and `SendPaymentSync` in the next release 0.20.
Pull Request #9456: lnrpc+docs: deprecate warning `SendToRoute`, `SendToRouteSync`, `SendPayment`, and `SendPaymentSync` in Release 0.19

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0.0
/lnwire/closing_complete.go
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package lnwire
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import (
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        "bytes"
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        "io"
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        "github.com/btcsuite/btcd/btcutil"
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        "github.com/lightningnetwork/lnd/tlv"
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)
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// ClosingSigs houses the 3 possible signatures that can be sent when
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// attempting to complete a cooperative channel closure. A signature will
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// either include both outputs, or only one of the outputs from either side.
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type ClosingSigs struct {
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        // CloserNoClosee is a signature that excludes the output of the
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        // clsoee.
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        CloserNoClosee tlv.OptionalRecordT[tlv.TlvType1, Sig]
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        // NoCloserClosee is a signature that excludes the output of the
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        // closer.
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        NoCloserClosee tlv.OptionalRecordT[tlv.TlvType2, Sig]
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        // CloserAndClosee is a signature that includes both outputs.
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        CloserAndClosee tlv.OptionalRecordT[tlv.TlvType3, Sig]
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}
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// ClosingComplete is sent by either side to kick off the process of obtaining
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// a valid signature on a c o-operative channel closure of their choice.
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type ClosingComplete struct {
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        // ChannelID serves to identify which channel is to be closed.
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        ChannelID ChannelID
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        // FeeSatoshis is the total fee in satoshis that the party to the
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        // channel would like to propose for the close transaction.
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        FeeSatoshis btcutil.Amount
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        // LockTime is the locktime number to be used in the input spending the
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        // funding transaction.
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        LockTime uint32
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        // ClosingSigs houses the 3 possible signatures that can be sent.
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        ClosingSigs
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        // ExtraData is the set of data that was appended to this message to
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        // fill out the full maximum transport message size. These fields can
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        // be used to specify optional data such as custom TLV fields.
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        ExtraData ExtraOpaqueData
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}
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// decodeClosingSigs decodes the closing sig TLV records in the passed
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// ExtraOpaqueData.
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func decodeClosingSigs(c *ClosingSigs, tlvRecords ExtraOpaqueData) error {
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        sig1 := c.CloserNoClosee.Zero()
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        sig2 := c.NoCloserClosee.Zero()
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        sig3 := c.CloserAndClosee.Zero()
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        typeMap, err := tlvRecords.ExtractRecords(&sig1, &sig2, &sig3)
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        if err != nil {
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                return err
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        }
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        // TODO(roasbeef): helper func to made decode of the optional vals
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        // easier?
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        if val, ok := typeMap[c.CloserNoClosee.TlvType()]; ok && val == nil {
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                c.CloserNoClosee = tlv.SomeRecordT(sig1)
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        }
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        if val, ok := typeMap[c.NoCloserClosee.TlvType()]; ok && val == nil {
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                c.NoCloserClosee = tlv.SomeRecordT(sig2)
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        }
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        if val, ok := typeMap[c.CloserAndClosee.TlvType()]; ok && val == nil {
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                c.CloserAndClosee = tlv.SomeRecordT(sig3)
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        }
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        return nil
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}
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// Decode deserializes a serialized ClosingComplete message stored in the
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// passed io.Reader.
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func (c *ClosingComplete) Decode(r io.Reader, _ uint32) error {
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        // First, read out all the fields that are hard coded into the message.
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        err := ReadElements(r, &c.ChannelID, &c.FeeSatoshis, &c.LockTime)
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        if err != nil {
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                return err
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        }
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        // With the hard coded messages read, we'll now read out the TLV fields
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        // of the message.
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        var tlvRecords ExtraOpaqueData
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        if err := ReadElements(r, &tlvRecords); err != nil {
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                return err
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        }
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        if err := decodeClosingSigs(&c.ClosingSigs, tlvRecords); err != nil {
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                return err
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        }
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        if len(tlvRecords) != 0 {
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                c.ExtraData = tlvRecords
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        }
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        return nil
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}
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// closingSigRecords returns the set of records that encode the closing sigs,
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// if present.
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func closingSigRecords(c *ClosingSigs) []tlv.RecordProducer {
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        recordProducers := make([]tlv.RecordProducer, 0, 3)
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        c.CloserNoClosee.WhenSome(func(sig tlv.RecordT[tlv.TlvType1, Sig]) {
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                recordProducers = append(recordProducers, &sig)
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        })
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        c.NoCloserClosee.WhenSome(func(sig tlv.RecordT[tlv.TlvType2, Sig]) {
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                recordProducers = append(recordProducers, &sig)
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        })
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        c.CloserAndClosee.WhenSome(func(sig tlv.RecordT[tlv.TlvType3, Sig]) {
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                recordProducers = append(recordProducers, &sig)
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        })
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        return recordProducers
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}
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// Encode serializes the target ClosingComplete into the passed io.Writer.
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func (c *ClosingComplete) Encode(w *bytes.Buffer, _ uint32) error {
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        if err := WriteChannelID(w, c.ChannelID); err != nil {
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                return err
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        }
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        if err := WriteSatoshi(w, c.FeeSatoshis); err != nil {
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                return err
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        }
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        if err := WriteUint32(w, c.LockTime); err != nil {
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                return err
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        }
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        recordProducers := closingSigRecords(&c.ClosingSigs)
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        err := EncodeMessageExtraData(&c.ExtraData, recordProducers...)
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        if err != nil {
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                return err
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        }
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        return WriteBytes(w, c.ExtraData)
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}
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// MsgType returns the uint32 code which uniquely identifies this message as a
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// ClosingComplete message on the wire.
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//
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// This is part of the lnwire.Message interface.
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func (c *ClosingComplete) MsgType() MessageType {
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        return MsgClosingComplete
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}
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// A compile time check to ensure ClosingComplete implements the lnwire.Message
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// interface.
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var _ Message = (*ClosingComplete)(nil)
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