Merge pull request #2 from bstasyszyn/import-sidetree-core

chore: Import sidetree-core-go server-side code

.gitignore

@@ -1,5 +1,5 @@
 #
-# Copyright SecureKey Technologies Inc. All Rights Reserved.
+# Copyright Gen Digital Inc. All Rights Reserved.
 #
 # SPDX-License-Identifier: Apache-2.0
 #

README.md

@@ -1,4 +1,4 @@
-# sidetree-core-go
+# sidetree-svc-go
 
 This library implements components of a service conforming to the [Sidetree Protocol](https://github.com/decentralized-identity/sidetree/blob/master/docs/protocol.md>).
 

go.mod

@@ -4,4 +4,37 @@
 
 module github.com/trustbloc/sidetree-svc-go
 
+require (
+	github.com/gorilla/mux v1.8.0
+	github.com/pkg/errors v0.9.1
+	github.com/stretchr/testify v1.8.1
+	github.com/trustbloc/logutil-go v1.0.0-rc1
+	github.com/trustbloc/sidetree-go v0.0.0-20230928172705-30e78b6b6ddd
+	go.uber.org/zap v1.23.0
+)
+
+require (
+	github.com/btcsuite/btcd v0.22.3 // indirect
+	github.com/btcsuite/btcutil v1.0.3-0.20201208143702-a53e38424cce // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/evanphx/json-patch v4.1.0+incompatible // indirect
+	github.com/minio/blake2b-simd v0.0.0-20160723061019-3f5f724cb5b1 // indirect
+	github.com/minio/sha256-simd v0.1.1 // indirect
+	github.com/mr-tron/base58 v1.2.0 // indirect
+	github.com/multiformats/go-base32 v0.0.3 // indirect
+	github.com/multiformats/go-multibase v0.0.1 // indirect
+	github.com/multiformats/go-multihash v0.0.14 // indirect
+	github.com/multiformats/go-varint v0.0.6 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/spaolacci/murmur3 v1.1.0 // indirect
+	github.com/square/go-jose/v3 v3.0.0-20200630053402-0a67ce9b0693 // indirect
+	go.opentelemetry.io/otel v1.12.0 // indirect
+	go.opentelemetry.io/otel/trace v1.12.0 // indirect
+	go.uber.org/atomic v1.7.0 // indirect
+	go.uber.org/multierr v1.6.0 // indirect
+	golang.org/x/crypto v0.1.0 // indirect
+	golang.org/x/sys v0.1.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
+
 go 1.21

go.sum

@@ -0,0 +1,124 @@
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+gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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pkg/api/cas/client.go

@@ -0,0 +1,17 @@
+/*
+Copyright Gen Digital Inc. All Rights Reserved.
+
+SPDX-License-Identifier: Apache-2.0
+*/
+
+package cas
+
+// Client defines interface for accessing the underlying content addressable storage.
+type Client interface {
+	// Write writes the given content to CASClient.
+	Write(content []byte) (string, error)
+
+	// Read reads the content of the given address in CASClient.
+	// returns the content of the given address.
+	Read(address string) ([]byte, error)
+}

pkg/api/operation/models.go

@@ -0,0 +1,51 @@
+/*
+Copyright Gen Digital Inc. All Rights Reserved.
+
+SPDX-License-Identifier: Apache-2.0
+*/
+
+package operation
+
+import "github.com/trustbloc/sidetree-go/pkg/api/operation"
+
+// Reference holds minimum information about did operation (suffix and type).
+type Reference struct {
+	// UniqueSuffix defines document unique suffix.
+	UniqueSuffix string
+
+	// Type defines operation type.
+	Type operation.Type
+
+	// AnchorOrigin defines anchor origin.
+	AnchorOrigin interface{}
+}
+
+// QueuedOperation stores minimum required operation info for operations queue.
+type QueuedOperation struct {
+	Type             operation.Type
+	OperationRequest []byte
+	UniqueSuffix     string
+	Namespace        string
+	AnchorOrigin     interface{}
+	Properties       []operation.Property
+}
+
+// QueuedOperationAtTime contains queued operation info with protocol genesis time.
+type QueuedOperationAtTime struct {
+	QueuedOperation
+	ProtocolVersion uint64
+}
+
+// QueuedOperationsAtTime contains a collection of queued operations with protocol genesis time.
+type QueuedOperationsAtTime []*QueuedOperationAtTime
+
+// QueuedOperations returns a collection of QueuedOperation.
+func (o QueuedOperationsAtTime) QueuedOperations() []*QueuedOperation {
+	ops := make([]*QueuedOperation, len(o))
+
+	for i, op := range o {
+		ops[i] = &op.QueuedOperation
+	}
+
+	return ops
+}

pkg/api/protocol/protocol.go

@@ -0,0 +1,88 @@
+/*
+Copyright Gen Digital Inc. All Rights Reserved.
+
+SPDX-License-Identifier: Apache-2.0
+*/
+
+package protocol
+
+import (
+	"github.com/trustbloc/sidetree-go/pkg/api/operation"
+	"github.com/trustbloc/sidetree-go/pkg/api/protocol"
+
+	coreoperation "github.com/trustbloc/sidetree-svc-go/pkg/api/operation"
+	"github.com/trustbloc/sidetree-svc-go/pkg/api/txn"
+)
+
+//go:generate counterfeiter -o ../../mocks/txnprocessor.gen.go --fake-name TxnProcessor . TxnProcessor
+//go:generate counterfeiter -o ../../mocks/protocolversion.gen.go --fake-name ProtocolVersion . Version
+//go:generate counterfeiter -o ../../mocks/operationhandler.gen.go --fake-name OperationHandler . OperationHandler
+//go:generate counterfeiter -o ../../mocks/operationprovider.gen.go --fake-name OperationProvider . OperationProvider
+
+// TxnProcessor defines the functions for processing a Sidetree transaction.
+type TxnProcessor interface {
+	Process(sidetreeTxn txn.SidetreeTxn, suffixes ...string) (numProcessed int, err error)
+}
+
+// AnchorDocumentType defines valid values for anchor document type.
+type AnchorDocumentType string
+
+const (
+
+	// TypePermanent captures "permanent" anchor document type.
+	TypePermanent AnchorDocumentType = "permanent"
+
+	// TypeProvisional captures "provisional" anchor document type.
+	TypeProvisional AnchorDocumentType = "provisional"
+)
+
+// AnchorDocument describes Sidetree batch files.
+type AnchorDocument struct {
+	ID   string
+	Desc string
+	Type AnchorDocumentType
+}
+
+// AnchoringInfo contains anchoring info plus additional batch information.
+type AnchoringInfo struct {
+	AnchorString         string
+	Artifacts            []*AnchorDocument
+	OperationReferences  []*coreoperation.Reference
+	AdditionalOperations []*coreoperation.QueuedOperation
+	ExpiredOperations    []*coreoperation.QueuedOperation
+}
+
+// OperationHandler defines an interface for creating batch files.
+type OperationHandler interface {
+	// PrepareTxnFiles operations will create relevant batch files, store them in CAS and return anchor string.
+	PrepareTxnFiles(ops []*coreoperation.QueuedOperation) (*AnchoringInfo, error)
+}
+
+// OperationProvider retrieves the anchored operations for the given Sidetree transaction.
+type OperationProvider interface {
+	GetTxnOperations(sidetreeTxn *txn.SidetreeTxn) ([]*operation.AnchoredOperation, error)
+}
+
+// Version contains the protocol and corresponding implementations that are compatible with the protocol version.
+type Version interface {
+	protocol.Version
+
+	TransactionProcessor() TxnProcessor
+	OperationHandler() OperationHandler
+	OperationProvider() OperationProvider
+	DocumentComposer() protocol.DocumentComposer
+}
+
+// Client defines interface for accessing protocol version/information.
+type Client interface {
+	// Current returns latest version of protocol.
+	Current() (Version, error)
+
+	// Get returns the version at the given transaction time.
+	Get(transactionTime uint64) (Version, error)
+}
+
+// ClientProvider returns a protocol client for the given namespace.
+type ClientProvider interface {
+	ForNamespace(namespace string) (Client, error)
+}

pkg/api/txn/sidetree.go

@@ -0,0 +1,19 @@
+/*
+Copyright Gen Digital Inc. All Rights Reserved.
+
+SPDX-License-Identifier: Apache-2.0
+*/
+
+package txn
+
+// SidetreeTxn defines info about sidetree transaction.
+type SidetreeTxn struct {
+	TransactionTime      uint64
+	TransactionNumber    uint64
+	AnchorString         string
+	Namespace            string
+	ProtocolVersion      uint64
+	CanonicalReference   string
+	EquivalentReferences []string
+	AlternateSources     []string
+}