upgrade dependencies

adjust transaction summary fields

.travis.yml

@@ -1,8 +1,8 @@
 os: linux
-dist: xenial
+dist: bionic
 language: go
 go:
-  - 1.11.x
+  - 1.17.x
 
 env:
   global:

dht/config.go

@@ -17,7 +17,7 @@ const (
 
 	// TODO: all these constants should be defaults, and should be used to set values in the standard Config. then the code should use values in the config
 	// TODO: alternatively, have a global Config for constants. at least that way tests can modify the values
-	alpha           = 3             // this is the constant alpha in the spec
+	alpha           = 5             // this is the constant alpha in the spec
 	bucketSize      = 8             // this is the constant k in the spec
 	nodeIDLength    = bits.NumBytes // bytes. this is the constant B in the spec
 	messageIDLength = 20            // bytes.

dht/contact.go

@@ -2,6 +2,7 @@ package dht
 
 import (
 	"bytes"
+	"encoding/json"
 	"net"
 	"sort"
 	"strconv"
@@ -41,6 +42,20 @@ func (c Contact) String() string {
 	return str
 }
 
+func (c Contact) MarshalJSON() ([]byte, error) {
+	return json.Marshal(&struct {
+		ID       string
+		IP       string
+		Port     int
+		PeerPort int
+	}{
+		ID:       c.ID.Hex(),
+		IP:       c.IP.String(),
+		Port:     c.Port,
+		PeerPort: c.PeerPort,
+	})
+}
+
 // MarshalCompact returns a compact byteslice representation of the contact
 // NOTE: The compact representation always uses the tcp PeerPort, not the udp Port. This is dumb, but that's how the python daemon does it
 func (c Contact) MarshalCompact() ([]byte, error) {

dht/message.go

@@ -40,6 +40,7 @@ const (
 	headerPayloadField   = "3"
 	headerArgsField      = "4"
 	contactsField        = "contacts"
+	pageField            = "p"
 	tokenField           = "token"
 	protocolVersionField = "protocolVersion"
 )
@@ -270,6 +271,7 @@ type Response struct {
 	FindValueKey    string
 	Token           string
 	ProtocolVersion int
+	Page            uint8
 }
 
 func (r Response) argsDebug() string {
@@ -390,10 +392,18 @@ func (r *Response) UnmarshalBencode(b []byte) error {
 
 	if contacts, ok := rawData[contactsField]; ok {
 		err = bencode.DecodeBytes(contacts, &r.Contacts)
+		delete(rawData, contactsField) // so it doesnt mess up findValue key finding below
 		if err != nil {
 			return err
 		}
-	} else {
+	}
+	if page, ok := rawData[pageField]; ok {
+		err = bencode.DecodeBytes(page, &r.Page)
+		delete(rawData, pageField) // so it doesnt mess up findValue key finding below
+		if err != nil {
+			return err
+		}
+	}
 	for k, v := range rawData {
 		r.FindValueKey = k
 		var compactContacts [][]byte
@@ -411,7 +421,6 @@ func (r *Response) UnmarshalBencode(b []byte) error {
 		}
 		break
 	}
-	}
 
 	return nil
 }

dht/node_finder.go

@@ -10,7 +10,7 @@ import (
 	"github.com/lbryio/lbry.go/v2/extras/stop"
 
 	"github.com/sirupsen/logrus"
-	"github.com/uber-go/atomic"
+	"go.uber.org/atomic"
 )
 
 // TODO: iterativeFindValue may be stopping early. if it gets a response with one peer, it should keep going because other nodes may know about more peers that have that blob

dht/rpc.go

@@ -102,6 +102,7 @@ type RpcIterativeFindValueArgs struct {
 type RpcIterativeFindValueResult struct {
 	Contacts   []Contact
 	FoundValue bool
+	Values     []Contact
 }
 
 func (rpc *rpcReceiver) IterativeFindValue(r *http.Request, args *RpcIterativeFindValueArgs, result *RpcIterativeFindValueResult) error {
@@ -109,12 +110,19 @@ func (rpc *rpcReceiver) IterativeFindValue(r *http.Request, args *RpcIterativeFi
 	if err != nil {
 		return err
 	}
-	foundContacts, found, err := FindContacts(rpc.dht.node, key, false, nil)
+	foundContacts, found, err := FindContacts(rpc.dht.node, key, true, nil)
 	if err != nil {
 		return err
 	}
 	result.Contacts = foundContacts
 	result.FoundValue = found
+	if found {
+		for _, contact := range foundContacts {
+			if contact.PeerPort > 0 {
+				result.Values = append(result.Values, contact)
+			}
+		}
+	}
 	return nil
 }
 

extras/api/server.go

@@ -17,6 +17,12 @@ import (
 // ResponseHeaders are returned with each response
 var ResponseHeaders map[string]string
 
+// CorsDomains Allowed domains for CORS Policy
+var CorsDomains []string
+
+// CorsAllowLocalhost if true localhost connections are always allowed
+var CorsAllowLocalhost bool
+
 // Log allows logging of events and errors
 var Log = func(*http.Request, *Response, error) {}
 
@@ -77,6 +83,32 @@ func (h Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			w.Header().Set(key, value)
 		}
 	}
+	origin := r.Header.Get("origin")
+	for _, d := range CorsDomains {
+		if d == origin {
+			w.Header().Set("Access-Control-Allow-Origin", d)
+			vary := w.Header().Get("Vary")
+			if vary != "*" {
+				if vary != "" {
+					vary += ", "
+				}
+				vary += "Origin"
+			}
+			w.Header().Set("Vary", vary)
+		}
+	}
+
+	if CorsAllowLocalhost && strings.HasPrefix(origin, "http://localhost:") {
+		w.Header().Set("Access-Control-Allow-Origin", origin)
+		vary := w.Header().Get("Vary")
+		if vary != "*" {
+			if vary != "" {
+				vary += ", "
+			}
+			vary += "Origin"
+		}
+		w.Header().Set("Vary", vary)
+	}
 
 	// Stop here if its a preflighted OPTIONS request
 	if r.Method == "OPTIONS" {
@@ -89,6 +121,9 @@ func (h Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		if rsp.Error != nil {
 			ogErr := errors.Unwrap(rsp.Error)
 			if statusError, ok := ogErr.(StatusError); ok {
+				if statusError.Status == 0 {
+					statusError.Status = http.StatusInternalServerError
+				}
 				rsp.Status = statusError.Status
 			} else {
 				rsp.Status = http.StatusInternalServerError

extras/jsonrpc/daemon.go

@@ -15,16 +15,29 @@ import (
 	"github.com/mitchellh/mapstructure"
 	"github.com/shopspring/decimal"
 	log "github.com/sirupsen/logrus"
-	"github.com/ybbus/jsonrpc"
+	"github.com/ybbus/jsonrpc/v2"
 )
 
 const DefaultPort = 5279
 
+const (
+	ErrorWalletNotLoaded     = "WalletNotLoadedError"
+	ErrorWalletAlreadyLoaded = "WalletAlreadyLoadedError"
+	ErrorWalletNotFound      = "WalletNotFoundError"
+	ErrorWalletAlreadyExists = "WalletAlreadyExistsError"
+)
+
 type Client struct {
 	conn    jsonrpc.RPCClient
 	address string
 }
 
+type Error struct {
+	Code    int
+	Name    string
+	Message string
+}
+
 func NewClient(address string) *Client {
 	d := Client{}
 
@@ -70,6 +83,15 @@ func Decode(data interface{}, targetStruct interface{}) error {
 	return nil
 }
 
+// WrapError adds error metadata from JSONRPC error response for clients to access
+func WrapError(rpcError *jsonrpc.RPCError) Error {
+	e := Error{Code: rpcError.Code, Message: rpcError.Message}
+	if d, ok := rpcError.Data.(map[string]interface{}); ok {
+		e.Name = d["name"].(string)
+	}
+	return e
+}
+
 func decodeNumber(data interface{}) (decimal.Decimal, error) {
 	var number string
 
@@ -106,6 +128,10 @@ func debugParams(params map[string]interface{}) string {
 	return strings.Join(s, " ")
 }
 
+func (e Error) Error() string {
+	return fmt.Sprintf("Error in daemon: %s", e.Message)
+}
+
 func (d *Client) callNoDecode(command string, params map[string]interface{}) (interface{}, error) {
 	log.Debugln("jsonrpc: " + command + " " + debugParams(params))
 	r, err := d.conn.Call(command, params)
@@ -114,7 +140,7 @@ func (d *Client) callNoDecode(command string, params map[string]interface{}) (in
 	}
 
 	if r.Error != nil {
-		return nil, errors.Err("Error in daemon: " + r.Error.Message)
+		return nil, WrapError(r.Error)
 	}
 
 	return r.Result, nil
@@ -138,6 +164,21 @@ func (d *Client) SetRPCTimeout(timeout time.Duration) {
 //				NEW SDK
 //============================================
 
+func (d *Client) AccountSend(accountID *string, amount, toAddress string) (*TransactionSummary, error) {
+	response := new(TransactionSummary)
+	args := struct {
+		AccountID *string `json:"account_id"`
+		Amount    string  `json:"amount"`
+		Addresses string  `json:"addresses"`
+	}{
+		AccountID: accountID,
+		Amount:    amount,
+		Addresses: toAddress,
+	}
+	structs.DefaultTagName = "json"
+	return response, d.call(response, "account_send", structs.Map(args))
+}
+
 func (d *Client) AccountList(page uint64, pageSize uint64) (*AccountListResponse, error) {
 	response := new(AccountListResponse)
 	return response, d.call(response, "account_list", map[string]interface{}{
@@ -220,6 +261,13 @@ func (d *Client) AddressUnused(account *string) (*AddressUnusedResponse, error)
 	})
 }
 
+func (d *Client) TransactionShow(txid string) (*TransactionSummary, error) {
+	response := new(TransactionSummary)
+	return response, d.call(response, "transaction_show", map[string]interface{}{
+		"txid": txid,
+	})
+}
+
 func (d *Client) ChannelList(account *string, page uint64, pageSize uint64, wid *string) (*ChannelListResponse, error) {
 	if page == 0 {
 		return nil, errors.Err("pages start from 1")
@@ -270,6 +318,7 @@ type ChannelCreateOptions struct {
 	CoverURL           *string  `json:"cover_url,omitempty"`
 	Featured           []string `json:"featured,omitempty"`
 	AccountID          *string  `json:"account_id,omitempty"`
+	FundingAccountIDs  []string `json:"funding_account_ids,omitempty"`
 }
 
 func (d *Client) ChannelCreate(name string, bid float64, options ChannelCreateOptions) (*TransactionSummary, error) {
@@ -473,10 +522,11 @@ func (d *Client) Status() (*StatusResponse, error) {
 	return response, d.call(response, "status", map[string]interface{}{})
 }
 
-func (d *Client) TransactionList(account *string, page uint64, pageSize uint64) (*TransactionListResponse, error) {
+func (d *Client) TransactionList(account *string, wallet *string, page uint64, pageSize uint64) (*TransactionListResponse, error) {
 	response := new(TransactionListResponse)
 	return response, d.call(response, "transaction_list", map[string]interface{}{
 		"account_id": account,
+		"wallet_id":  wallet,
 		"page":       page,
 		"page_size":  pageSize,
 	})
@@ -528,24 +578,35 @@ func (d *Client) Resolve(urls string) (*ResolveResponse, error) {
 	})
 }
 
-func (d *Client) ClaimSearch(claimName, claimID, txid *string, nout *uint, page uint64, pageSize uint64) (*ClaimSearchResponse, error) {
-	response := new(ClaimSearchResponse)
-	args := struct {
+type ClaimSearchArgs struct {
 	ClaimID               *string  `json:"claim_id,omitempty"`
 	TXID                  *string  `json:"txid,omitempty"`
 	Nout                  *uint    `json:"nout,omitempty"`
 	Name                  *string  `json:"name,omitempty"`
-		IncludeProtobuf bool    `json:"include_protobuf"`
+	ClaimType             []string `json:"claim_type,omitempty"`
+	OrderBy               []string `json:"order_by,omitempty"`
+	LimitClaimsPerChannel *int     `json:"limit_claims_per_channel,omitempty"`
+	HasNoSource           *bool    `json:"has_no_source,omitempty"`
+	ReleaseTime           string   `json:"release_time,omitempty"`
+	ChannelIDs            []string `json:"channel_ids,omitempty"`
+	NoTotals              *bool    `json:"no_totals,omitempty"`
+	IncludeProtobuf       *bool    `json:"include_protobuf,omitempty"`
+	AnyTags               []string `json:"any_tags,omitempty"`
+
 	Page     uint64 `json:"page"`
 	PageSize uint64 `json:"page_size"`
-	}{
-		ClaimID:         claimID,
-		TXID:            txid,
-		Nout:            nout,
-		Name:            claimName,
-		IncludeProtobuf: true,
-		Page:            page,
-		PageSize:        pageSize,
+}
+
+func (d *Client) ClaimSearch(args ClaimSearchArgs) (*ClaimSearchResponse, error) {
+	response := new(ClaimSearchResponse)
+	if args.NoTotals == nil {
+		nototals := true
+		args.NoTotals = &nototals
+	}
+
+	if args.IncludeProtobuf == nil {
+		include := true
+		args.IncludeProtobuf = &include
 	}
 	structs.DefaultTagName = "json"
 	return response, d.call(response, "claim_search", structs.Map(args))

extras/jsonrpc/daemon_test.go

@@ -11,6 +11,7 @@ import (
 	"time"
 
 	"github.com/shopspring/decimal"
+	"github.com/stretchr/testify/assert"
 
 	"github.com/lbryio/lbry.go/v2/extras/errors"
 
@@ -54,6 +55,32 @@ func TestClient_AccountFund(t *testing.T) {
 	prettyPrint(*got)
 }
 
+func TestClient_AccountSend(t *testing.T) {
+	d := NewClient("")
+	accounts, err := d.AccountList(1, 20)
+	if !assert.NoError(t, err) {
+		return
+	}
+	if !assert.NotEmpty(t, accounts.Items[1].ID) {
+		return
+	}
+	account := (accounts.Items)[1].ID
+
+	addressess, err := d.AddressList(&account, nil, 1, 20)
+	if !assert.NoError(t, err) {
+		return
+	}
+	if !assert.NotEmpty(t, addressess.Items) {
+		return
+	}
+
+	got, err := d.AccountSend(&account, "0.01", string(addressess.Items[0].Address))
+	if !assert.NoError(t, err) {
+		return
+	}
+	prettyPrint(*got)
+}
+
 func TestClient_AccountList(t *testing.T) {
 	d := NewClient("")
 	got, err := d.AccountList(1, 20)
@@ -130,11 +157,11 @@ func TestClient_ChannelCreate(t *testing.T) {
 				State:   util.PtrToString("Ticino"),
 				City:    util.PtrToString("Lugano"),
 			}},
-			ThumbnailURL: util.PtrToString("https://scrn.storni.info/2019-04-12_15-43-25-001592625.png"),
+			ThumbnailURL: util.PtrToString("https://scrn.storni.info/2022-06-10_17-18-29-409175881.png"),
 		},
 		Email:      util.PtrToString("niko@lbry.com"),
 		WebsiteURL: util.PtrToString("https://lbry.com"),
-		CoverURL:   util.PtrToString("https://scrn.storni.info/2019-04-12_15-43-25-001592625.png"),
+		CoverURL:   util.PtrToString("https://scrn.storni.info/2022-06-10_17-18-29-409175881.png"),
 	})
 	if err != nil {
 		t.Error(err)
@@ -304,7 +331,7 @@ func TestClient_StreamList(t *testing.T) {
 func TestClient_TransactionList(t *testing.T) {
 	_ = os.Setenv("BLOCKCHAIN_NAME", "lbrycrd_regtest")
 	d := NewClient("")
-	got, err := d.TransactionList(nil, 1, 20)
+	got, err := d.TransactionList(nil, nil, 1, 20)
 	if err != nil {
 		t.Error(err)
 		return
@@ -463,7 +490,14 @@ func TestClient_TxoSpendTest(t *testing.T) {
 
 func TestClient_ClaimSearch(t *testing.T) {
 	d := NewClient("")
-	got, err := d.ClaimSearch(nil, util.PtrToString(channelID), nil, nil, 1, 20)
+	got, err := d.ClaimSearch(ClaimSearchArgs{
+		ChannelIDs:  []string{channelID},
+		ReleaseTime: ">1633350820",
+		HasNoSource: util.PtrToBool(true),
+		OrderBy:     []string{"^release_time"},
+		Page:        1,
+		PageSize:    20,
+	})
 	if err != nil {
 		t.Error(err)
 		return
@@ -743,11 +777,15 @@ func TestClient_WalletList(t *testing.T) {
 	d := NewClient("")
 
 	id := "lbry#wallet#id:" + fmt.Sprintf("%d", rand.Int())
-	wList, err := d.WalletList(id, 1, 20)
+	_, err := d.WalletList(id, 1, 20)
 	if err == nil {
 		t.Fatalf("wallet %v was unexpectedly found", id)
 	}
-	if !strings.Contains(err.Error(), fmt.Sprintf("Couldn't find wallet: %v.", id)) {
+	derr, ok := err.(Error)
+	if !ok {
+		t.Fatalf("unknown error returned: %s", err)
+	}
+	if derr.Name != ErrorWalletNotLoaded {
 		t.Fatal(err)
 	}
 
@@ -756,7 +794,7 @@ func TestClient_WalletList(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	wList, err = d.WalletList(id, 1, 20)
+	wList, err := d.WalletList(id, 1, 20)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -791,3 +829,17 @@ func TestClient_WalletRemoveWalletAdd(t *testing.T) {
 		t.Fatalf("wallet ID mismatch, expected %q, got %q", wallet.ID, addedWallet.Name)
 	}
 }
+
+func TestClient_TransactionSummary(t *testing.T) {
+	d := NewClient("https://api.na-backend.odysee.com/api/v1/proxy")
+	r, err := d.TransactionShow("d104a1616c6af581e2046819de678f370d624e97cf176f95acaec4b183a42db6")
+	if err != nil {
+		t.Error(err)
+	}
+	if len(r.Outputs) != 2 {
+		t.Fatal("found wrong transaction")
+	}
+	if r.Outputs[0].Amount != "5.0" {
+		t.Error("found wrong lbc amount for transaction.")
+	}
+}

extras/jsonrpc/daemon_types.go

@@ -7,11 +7,12 @@ import (
 	"net/http"
 	"os"
 	"reflect"
+	"strings"
 
 	"github.com/lbryio/lbry.go/v2/extras/errors"
 	"github.com/lbryio/lbry.go/v2/stream"
 
-	schema "github.com/lbryio/lbryschema.go/claim"
+	schema "github.com/lbryio/lbry.go/v2/schema/stake"
 	lbryschema "github.com/lbryio/types/v2/go"
 
 	"github.com/shopspring/decimal"
@@ -49,12 +50,10 @@ type File struct {
 	Height               int               `json:"height"`
 	IsFullyReflected     bool              `json:"is_fully_reflected"`
 	Key                  string            `json:"key"`
-	Metadata             *lbryschema.Claim `json:"protobuf"`
+	Value                *lbryschema.Claim `json:"protobuf"`
 	MimeType             string            `json:"mime_type"`
 	Nout                 int               `json:"nout"`
 	Outpoint             string            `json:"outpoint"`
-	PointsPaid           decimal.Decimal   `json:"points_paid"`
-	Protobuf             string            `json:"protobuf"`
 	PurchaseReceipt      interface{}       `json:"purchase_receipt"`
 	ReflectorProgress    int               `json:"reflector_progress"`
 	SdHash               string            `json:"sd_hash"`
@@ -252,11 +251,11 @@ type Transaction struct {
 	NormalizedName     string            `json:"normalized_name"`
 	Nout               uint64            `json:"nout"`
 	PermanentUrl       string            `json:"permanent_url"`
+	SigningChannel     *Claim            `json:"signing_channel,omitempty"`
 	TimeStamp          uint64            `json:"time_stamp"`
-	Protobuf           string            `json:"protobuf,omitempty"`
 	Txid               string            `json:"txid"`
 	Type               string            `json:"type"`
-	Value              *lbryschema.Claim `json:"protobuf"`
+	Value              *lbryschema.Claim `json:"protobuf,omitempty"`
 }
 
 type TransactionSummary struct {
@@ -265,6 +264,7 @@ type TransactionSummary struct {
 	Inputs      []Transaction `json:"inputs"`
 	Outputs     []Transaction `json:"outputs"`
 	TotalFee    string        `json:"total_fee"`
+	TotalInput  string        `json:"total_input"`
 	TotalOutput string        `json:"total_output"`
 	Txid        string        `json:"txid"`
 }
@@ -305,10 +305,23 @@ type Support struct {
 	Txid   string `json:"txid"`
 }
 
+type PurchaseReceipt struct {
+	Address       string `json:"file_name"`
+	Amount        string `json:"amount"`
+	ClaimID       string `json:"claim_id"`
+	Confirmations int    `json:"confirmations"`
+	Height        int    `json:"height"`
+	Nout          uint64 `json:"nout"`
+	Timestamp     uint64 `json:"timestamp"`
+	Txid          string `json:"txid"`
+	Type          string `json:"purchase"`
+}
+
 type Claim struct {
 	Address                 string           `json:"address"`
 	Amount                  string           `json:"amount"`
 	CanonicalURL            string           `json:"canonical_url"`
+	ChannelID               string           `json:"channel_id"`
 	ClaimID                 string           `json:"claim_id"`
 	ClaimOp                 string           `json:"claim_op,omitempty"`
 	Confirmations           int              `json:"confirmations"`
@@ -324,6 +337,7 @@ type Claim struct {
 	NormalizedName          string           `json:"normalized_name"`
 	Nout                    uint64           `json:"nout"`
 	PermanentURL            string           `json:"permanent_url"`
+	PurchaseReceipt         *PurchaseReceipt `json:"purchase_receipt,omitempty"`
 	ShortURL                string           `json:"short_url"`
 	SigningChannel          *Claim           `json:"signing_channel,omitempty"`
 	Timestamp               int              `json:"timestamp"`
@@ -356,7 +370,7 @@ type Meta struct {
 	TrendingMixed     float64 `json:"trending_mixed,omitempty"`
 }
 
-const reflectorURL = "http://blobs.lbry.io/"
+const coldStorageURL = "https://s3.wasabisys.com/blobs.lbry.com/"
 
 // GetStreamSizeByMagic uses "magic" to not just estimate, but actually return the exact size of a stream
 // It does so by fetching the sd blob and the last blob from our S3 bucket, decrypting and unpadding the last blob
@@ -366,7 +380,7 @@ func (c *Claim) GetStreamSizeByMagic() (streamSize uint64, e error) {
 	if c.Value.GetStream() == nil {
 		return 0, errors.Err("this claim is not a stream")
 	}
-	resp, err := http.Get(reflectorURL + hex.EncodeToString(c.Value.GetStream().Source.SdHash))
+	resp, err := http.Get(coldStorageURL + hex.EncodeToString(c.Value.GetStream().Source.SdHash))
 	if err != nil {
 		return 0, errors.Err(err)
 	}
@@ -389,7 +403,7 @@ func (c *Claim) GetStreamSizeByMagic() (streamSize uint64, e error) {
 		streamSize = uint64(stream.MaxBlobSize-1) * uint64(len(sdb.BlobInfos)-2)
 	}
 
-	resp2, err := http.Get(reflectorURL + hex.EncodeToString(lastBlobHash))
+	resp2, err := http.Get(coldStorageURL + hex.EncodeToString(lastBlobHash))
 	if err != nil {
 		return 0, errors.Err(err)
 	}
@@ -413,6 +427,33 @@ func (c *Claim) GetStreamSizeByMagic() (streamSize uint64, e error) {
 	return streamSize, nil
 }
 
+const (
+	ProtectedContentTag      = SpecialContentType("c:members-only")
+	PurchaseContentTag       = SpecialContentType("c:purchase:")
+	RentalContentTag         = SpecialContentType("c:rental:")
+	PreorderContentTag       = SpecialContentType("c:preorder:")
+	LegacyPurchaseContentTag = SpecialContentType("purchase:")
+	LegacyRentalContentTag   = SpecialContentType("rental:")
+	LegacyPreorderContentTag = SpecialContentType("preorder:")
+	ScheduledShowContentTag  = SpecialContentType("c:scheduled:show")
+	ScheduledHideContentTag  = SpecialContentType("c:scheduled:hide")
+	UnlistedContentTag       = SpecialContentType("c:unlisted")
+)
+
+type SpecialContentType string
+
+//IsContentSpecial returns true if the claim is of a special content type
+func (c *Claim) IsContentSpecial(specialTags ...SpecialContentType) bool {
+	for _, t := range c.Value.GetTags() {
+		for _, ct := range specialTags {
+			if strings.Contains(t, string(ct)) {
+				return true
+			}
+		}
+	}
+	return false
+}
+
 type StreamListResponse struct {
 	Items      []Claim `json:"items"`
 	Page       uint64  `json:"page"`

extras/lbryinc/client.go

@@ -10,11 +10,13 @@ import (
 	"net/url"
 	"time"
 
+	"golang.org/x/oauth2"
+
 	log "github.com/sirupsen/logrus"
 )
 
 const (
-	defaultServerAddress = "https://api.lbry.com"
+	defaultServerAddress = "https://api.odysee.tv"
 	timeout              = 5 * time.Second
 	headerForwardedFor   = "X-Forwarded-For"
 
@@ -26,6 +28,7 @@ const (
 // Client stores data about internal-apis call it is about to make.
 type Client struct {
 	AuthToken     string
+	OAuthToken    oauth2.TokenSource
 	Logger        *log.Logger
 	serverAddress string
 	extraHeaders  map[string]string
@@ -43,11 +46,52 @@ type ClientOpts struct {
 type APIResponse struct {
 	Success bool        `json:"success"`
 	Error   *string     `json:"error"`
-	Data    *ResponseData `json:"data"`
+	Data    interface{} `json:"data"`
+}
+
+type data struct {
+	obj   map[string]interface{}
+	array []interface{}
+}
+
+func (d data) IsObject() bool {
+	return d.obj != nil
+}
+
+func (d data) IsArray() bool {
+	return d.array != nil
+}
+
+func (d data) Object() (map[string]interface{}, error) {
+	if d.obj == nil {
+		return nil, errors.New("no object data found")
+	}
+	return d.obj, nil
+}
+
+func (d data) Array() ([]interface{}, error) {
+	if d.array == nil {
+		return nil, errors.New("no array data found")
+	}
+	return d.array, nil
+}
+
+// APIError wraps errors returned by LBRY API server to discern them from other kinds (like http errors).
+type APIError struct {
+	Err error
+}
+
+func (e APIError) Error() string {
+	return fmt.Sprintf("api error: %v", e.Err)
 }
 
 // ResponseData is a map containing parsed json response.
-type ResponseData map[string]interface{}
+type ResponseData interface {
+	IsObject() bool
+	IsArray() bool
+	Object() (map[string]interface{}, error)
+	Array() ([]interface{}, error)
+}
 
 func makeMethodPath(obj, method string) string {
 	return fmt.Sprintf("/%s/%s", obj, method)
@@ -74,13 +118,42 @@ func NewClient(authToken string, opts *ClientOpts) Client {
 	return c
 }
 
+// NewOauthClient returns a client instance for internal-apis. It requires Oauth Token Source to be provided
+// for authentication.
+func NewOauthClient(token oauth2.TokenSource, opts *ClientOpts) Client {
+	c := Client{
+		serverAddress: defaultServerAddress,
+		extraHeaders:  make(map[string]string),
+		OAuthToken:    token,
+		Logger:        log.StandardLogger(),
+	}
+	if opts != nil {
+		if opts.ServerAddress != "" {
+			c.serverAddress = opts.ServerAddress
+		}
+		if opts.RemoteIP != "" {
+			c.extraHeaders[headerForwardedFor] = opts.RemoteIP
+		}
+	}
+
+	return c
+}
+
 func (c Client) getEndpointURL(object, method string) string {
 	return fmt.Sprintf("%s%s", c.serverAddress, makeMethodPath(object, method))
 }
 
+func (c Client) getEndpointURLFromPath(path string) string {
+	return fmt.Sprintf("%s%s", c.serverAddress, path)
+}
+
 func (c Client) prepareParams(params map[string]interface{}) (string, error) {
 	form := url.Values{}
+	if c.AuthToken != "" {
 		form.Add("auth_token", c.AuthToken)
+	} else if c.OAuthToken == nil {
+		return "", errors.New("oauth token source must be supplied")
+	}
 	for k, v := range params {
 		if k == "auth_token" {
 			return "", errors.New("extra auth_token supplied in request params")
@@ -100,6 +173,16 @@ func (c Client) doCall(url string, payload string) ([]byte, error) {
 
 	req.Header.Add("Accept", "application/json")
 	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
+	if c.OAuthToken != nil {
+		t, err := c.OAuthToken.Token()
+		if err != nil {
+			return nil, err
+		}
+		if t.Type() != "Bearer" {
+			return nil, errors.New("internal-apis requires an oAuth token of type 'Bearer'")
+		}
+		t.SetAuthHeader(req)
+	}
 
 	for k, v := range c.extraHeaders {
 		req.Header.Set(k, v)
@@ -110,39 +193,77 @@ func (c Client) doCall(url string, payload string) ([]byte, error) {
 	if err != nil {
 		return body, err
 	}
+	if r.StatusCode >= 500 {
+		return body, fmt.Errorf("server returned non-OK status: %v", r.StatusCode)
+	}
 	defer r.Body.Close()
 	return ioutil.ReadAll(r.Body)
 }
 
-// Call calls a remote internal-apis server, returning a response,
+// CallResource calls a remote internal-apis server resource, returning a response,
 // wrapped into standardized API Response struct.
-func (c Client) Call(object, method string, params map[string]interface{}) (ResponseData, error) {
-	var rd ResponseData
+func (c Client) CallResource(object, method string, params map[string]interface{}) (ResponseData, error) {
+	var d data
 	payload, err := c.prepareParams(params)
 	if err != nil {
-		return rd, err
+		return d, err
 	}
 
 	body, err := c.doCall(c.getEndpointURL(object, method), payload)
 	if err != nil {
-		return rd, err
+		return d, err
 	}
 	var ar APIResponse
 	err = json.Unmarshal(body, &ar)
 	if err != nil {
-		return rd, err
+		return d, err
 	}
 	if !ar.Success {
-		return rd, errors.New(*ar.Error)
+		return d, APIError{errors.New(*ar.Error)}
 	}
-	return *ar.Data, err
+	if v, ok := ar.Data.([]interface{}); ok {
+		d.array = v
+	} else if v, ok := ar.Data.(map[string]interface{}); ok {
+		d.obj = v
+	}
+	return d, err
 }
 
-// UserMe returns user details for the user associated with the current auth_token
+// Call calls a remote internal-apis server, returning a response,
+// wrapped into standardized API Response struct.
+func (c Client) Call(path string, params map[string]interface{}) (ResponseData, error) {
+	var d data
+	payload, err := c.prepareParams(params)
+	if err != nil {
+		return d, err
+	}
+
+	body, err := c.doCall(c.getEndpointURLFromPath(path), payload)
+	if err != nil {
+		return d, err
+	}
+	var ar APIResponse
+	err = json.Unmarshal(body, &ar)
+	if err != nil {
+		return d, err
+	}
+	if !ar.Success {
+		return d, APIError{errors.New(*ar.Error)}
+	}
+	if v, ok := ar.Data.([]interface{}); ok {
+		d.array = v
+	} else if v, ok := ar.Data.(map[string]interface{}); ok {
+		d.obj = v
+	}
+	return d, err
+}
+
+// UserMe returns user details for the user associated with the current auth_token.
 func (c Client) UserMe() (ResponseData, error) {
-	return c.Call(userObjectPath, userMeMethod, map[string]interface{}{})
+	return c.CallResource(userObjectPath, userMeMethod, map[string]interface{}{})
 }
 
+// UserHasVerifiedEmail calls has_verified_email method.
 func (c Client) UserHasVerifiedEmail() (ResponseData, error) {
-	return c.Call(userObjectPath, userHasVerifiedEmailMethod, map[string]interface{}{})
+	return c.CallResource(userObjectPath, userHasVerifiedEmailMethod, map[string]interface{}{})
 }

extras/lbryinc/client_test.go

@@ -6,66 +6,96 @@ import (
 	"net/http/httptest"
 	"testing"
 
+	"golang.org/x/oauth2"
+
 	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
 )
 
-func TestUserMeWrongToken(t *testing.T) {
-	c := NewClient("abc", nil)
-	r, err := c.UserMe()
-	require.NotNil(t, err)
-	assert.Equal(t, "could not authenticate user", err.Error())
-	assert.Nil(t, r)
-}
-
-func TestUserHasVerifiedEmailWrongToken(t *testing.T) {
-	c := NewClient("abc", nil)
-	r, err := c.UserHasVerifiedEmail()
-	require.NotNil(t, err)
-	assert.Equal(t, "could not authenticate user", err.Error())
-	assert.Nil(t, r)
-}
-
-func launchDummyServer(lastReq **http.Request, path, response string) *httptest.Server {
+func launchDummyServer(lastReq **http.Request, path, response string, status int) *httptest.Server {
 	return httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if lastReq != nil {
 			*lastReq = &*r
+		}
+		authT := r.FormValue("auth_token")
+		if authT == "" {
+			accessT := r.Header.Get("Authorization")
+			if accessT == "" {
+				w.WriteHeader(http.StatusUnauthorized)
+				return
+			}
+		}
 		if r.URL.Path != path {
 			fmt.Printf("path doesn't match: %v != %v", r.URL.Path, path)
 			w.WriteHeader(http.StatusNotFound)
 		} else {
 			w.Header().Set("Content-Type", "application/json; charset=utf-8")
-			w.WriteHeader(http.StatusOK)
+			w.WriteHeader(status)
 			w.Write([]byte(response))
 		}
 	}))
 }
 
 func TestUserMe(t *testing.T) {
-	var req *http.Request
-	ts := launchDummyServer(&req, makeMethodPath(userObjectPath, userMeMethod), userMeResponse)
+	ts := launchDummyServer(nil, makeMethodPath(userObjectPath, userMeMethod), userMeResponse, http.StatusOK)
 	defer ts.Close()
 
 	c := NewClient("realToken", &ClientOpts{ServerAddress: ts.URL})
 	r, err := c.UserMe()
 	assert.Nil(t, err)
-	assert.Equal(t, "user@lbry.tv", r["primary_email"])
+	robj, err := r.Object()
+	if err != nil {
+		t.Fatal(err)
+	}
+	assert.Equal(t, "user@lbry.tv", robj["primary_email"])
+}
+
+func TestListFiltered(t *testing.T) {
+	ts := launchDummyServer(nil, "/file/list_filtered", listFilteredResponse, http.StatusOK)
+	defer ts.Close()
+
+	c := NewClient("realToken", &ClientOpts{ServerAddress: ts.URL})
+	r, err := c.CallResource("file", "list_filtered", map[string]interface{}{"with_claim_id": "true"})
+	assert.Nil(t, err)
+	assert.True(t, r.IsArray())
+	_, err = r.Array()
+	if err != nil {
+		t.Fatal(err)
+	}
 }
 
 func TestUserHasVerifiedEmail(t *testing.T) {
-	var req *http.Request
-	ts := launchDummyServer(&req, makeMethodPath(userObjectPath, userHasVerifiedEmailMethod), userHasVerifiedEmailResponse)
+	ts := launchDummyServer(nil, makeMethodPath(userObjectPath, userHasVerifiedEmailMethod), userHasVerifiedEmailResponse, http.StatusOK)
 	defer ts.Close()
 
 	c := NewClient("realToken", &ClientOpts{ServerAddress: ts.URL})
 	r, err := c.UserHasVerifiedEmail()
 	assert.Nil(t, err)
-	assert.EqualValues(t, 12345, r["user_id"])
-	assert.Equal(t, true, r["has_verified_email"])
+	robj, err := r.Object()
+	if err != nil {
+		t.Error(err)
+	}
+	assert.EqualValues(t, 12345, robj["user_id"])
+	assert.Equal(t, true, robj["has_verified_email"])
+}
+
+func TestUserHasVerifiedEmailOAuth(t *testing.T) {
+	ts := launchDummyServer(nil, makeMethodPath(userObjectPath, userHasVerifiedEmailMethod), userHasVerifiedEmailResponse, http.StatusOK)
+	defer ts.Close()
+
+	c := NewOauthClient(oauth2.StaticTokenSource(&oauth2.Token{AccessToken: "Test-Access-Token"}), &ClientOpts{ServerAddress: ts.URL})
+	r, err := c.UserHasVerifiedEmail()
+	assert.Nil(t, err)
+	robj, err := r.Object()
+	if err != nil {
+		t.Error(err)
+	}
+	assert.EqualValues(t, 12345, robj["user_id"])
+	assert.Equal(t, true, robj["has_verified_email"])
 }
 
 func TestRemoteIP(t *testing.T) {
 	var req *http.Request
-	ts := launchDummyServer(&req, makeMethodPath(userObjectPath, userMeMethod), userMeResponse)
+	ts := launchDummyServer(&req, makeMethodPath(userObjectPath, userMeMethod), userMeResponse, http.StatusOK)
 	defer ts.Close()
 
 	c := NewClient("realToken", &ClientOpts{ServerAddress: ts.URL, RemoteIP: "8.8.8.8"})
@@ -74,6 +104,34 @@ func TestRemoteIP(t *testing.T) {
 	assert.Equal(t, []string{"8.8.8.8"}, req.Header["X-Forwarded-For"])
 }
 
+func TestWrongToken(t *testing.T) {
+	c := NewClient("zcasdasc", nil)
+
+	r, err := c.UserHasVerifiedEmail()
+	assert.False(t, r.IsObject())
+	assert.EqualError(t, err, "api error: could not authenticate user")
+	assert.ErrorAs(t, err, &APIError{})
+}
+
+func TestHTTPError(t *testing.T) {
+	c := NewClient("zcasdasc", &ClientOpts{ServerAddress: "http://lolcathost"})
+
+	r, err := c.UserHasVerifiedEmail()
+	assert.False(t, r.IsObject())
+	assert.EqualError(t, err, `Post "http://lolcathost/user/has_verified_email": dial tcp: lookup lolcathost: no such host`)
+}
+
+func TestGatewayError(t *testing.T) {
+	var req *http.Request
+	ts := launchDummyServer(&req, makeMethodPath(userObjectPath, userHasVerifiedEmailMethod), "", http.StatusBadGateway)
+	defer ts.Close()
+	c := NewClient("zcasdasc", &ClientOpts{ServerAddress: ts.URL})
+
+	r, err := c.UserHasVerifiedEmail()
+	assert.False(t, r.IsObject())
+	assert.EqualError(t, err, `server returned non-OK status: 502`)
+}
+
 const userMeResponse = `{
 	"success": true,
 	"error": null,
@@ -107,3 +165,18 @@ const userHasVerifiedEmailResponse = `{
 	  "has_verified_email": true
 	}
 }`
+
+const listFilteredResponse = `{
+  "success": true,
+  "error": null,
+  "data": [
+    {
+      "claim_id": "322ce77e9085d9da42279c790f7c9755b4916fca",
+      "outpoint": "20e04af21a569061ced7aa1801a43b4ed4839dfeb79919ea49a4059c7fe114c5:0"
+    },
+    {
+      "claim_id": "61496c567badcd98b82d9a700a8d56fd8a5fa8fb",
+      "outpoint": "657e4ec774524b326f9d3ecb9f468ea085bd1f3d450565f0330feca02e8fd25b:0"
+    }
+  ]
+}`

extras/orderedmap/ordered_map.go

@@ -9,7 +9,7 @@ import (
 	"strings"
 	"sync"
 
-	"github.com/lbryio/lbry.go/extras/errors"
+	"github.com/lbryio/lbry.go/v2/extras/errors"
 )
 
 type keyIndex struct {

extras/query/query.go

@@ -87,11 +87,11 @@ func InterpolateParams(query string, args ...interface{}) (string, error) {
 
 // Qs is a shortcut for one group of positional placeholders
 func Qs(count int) string {
-	return placeholders(false, count, 1, 1)
+	return Placeholders(false, count, 1, 1)
 }
 
 // placeholders creates indexed or positional placeholders, in groups, with different starts
-func placeholders(indexPlaceholders bool, count int, start int, group int) string {
+func Placeholders(indexPlaceholders bool, count int, start int, group int) string {
 	buf := bytes.Buffer{}
 
 	if start == 0 || group == 0 {

extras/util/slack.go

@@ -2,12 +2,15 @@ package util
 
 import (
 	"fmt"
+	"net"
+	"net/http"
 	"strings"
+	"time"
 
 	"github.com/lbryio/lbry.go/v2/extras/errors"
 
-	"github.com/nlopes/slack"
 	log "github.com/sirupsen/logrus"
+	"github.com/slack-go/slack"
 )
 
 var defaultChannel string
@@ -16,7 +19,18 @@ var slackApi *slack.Client
 
 // InitSlack Initializes a slack client with the given token and sets the default channel.
 func InitSlack(token string, channel string, username string) {
-	slackApi = slack.New(token)
+	c := &http.Client{
+		Transport: &http.Transport{
+			DialContext: (&net.Dialer{
+				Timeout:   30 * time.Second,
+				KeepAlive: 30 * time.Second,
+			}).DialContext,
+			TLSHandshakeTimeout:   10 * time.Second,
+			ResponseHeaderTimeout: 10 * time.Second,
+			ExpectContinueTimeout: 1 * time.Second,
+		},
+	}
+	slackApi = slack.New(token, slack.OptionHTTPClient(c))
 	defaultChannel = channel
 	defaultUsername = username
 }
@@ -65,7 +79,13 @@ func sendToSlack(channel, username, message string) error {
 		err = errors.Err("no slack token provided")
 	} else {
 		log.Debugln("slack: " + channel + ": " + message)
+		for {
 			_, _, err = slackApi.PostMessage(channel, slack.MsgOptionText(message, false), slack.MsgOptionUsername(username))
+			if err != nil && strings.Contains(err.Error(), "timeout awaiting response headers") {
+				continue
+			}
+			break
+		}
 	}
 
 	if err != nil {

extras/util/strings.go

@@ -0,0 +1,53 @@
+package util
+
+import (
+	"encoding/hex"
+	"golang.org/x/text/cases"
+	"golang.org/x/text/unicode/norm"
+	"strings"
+)
+
+func StringSplitArg(stringToSplit, separator string) []interface{} {
+	split := strings.Split(stringToSplit, separator)
+	splitInterface := make([]interface{}, len(split))
+	for i, s := range split {
+		splitInterface[i] = s
+	}
+	return splitInterface
+}
+
+// NormalizeName Normalize names to remove weird characters and account to capitalization
+func NormalizeName(s string) string {
+	c := cases.Fold()
+	return c.String(norm.NFD.String(s))
+}
+
+// ReverseBytesInPlace reverse the bytes. thanks, Satoshi 😒
+func ReverseBytesInPlace(s []byte) {
+	for i, j := 0, len(s)-1; i < j; i, j = i+1, j-1 {
+		s[i], s[j] = s[j], s[i]
+	}
+}
+
+// TxIdToTxHash convert the txid to a hash for returning from the hub
+func TxIdToTxHash(txid string) []byte {
+	t, err := hex.DecodeString(txid)
+	if err != nil {
+		return nil
+	}
+
+	ReverseBytesInPlace(t)
+
+	return t
+}
+
+// TxHashToTxId convert the txHash from the response format back to an id
+func TxHashToTxId(txHash []byte) string {
+	t := make([]byte, len(txHash))
+	copy(t, txHash)
+
+	ReverseBytesInPlace(t)
+
+	return hex.EncodeToString(t)
+
+}

go.mod

@@ -1,55 +1,55 @@
+go 1.18
+
 module github.com/lbryio/lbry.go/v2
 
 replace github.com/btcsuite/btcd => github.com/lbryio/lbrycrd.go v0.0.0-20200203050410-e1076f12bf19
 
 require (
-	github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a // indirect
 	github.com/btcsuite/btcd v0.0.0-20190213025234-306aecffea32
 	github.com/btcsuite/btcutil v0.0.0-20190425235716-9e5f4b9a998d
 	github.com/davecgh/go-spew v1.1.1
 	github.com/fatih/structs v1.1.0
-	github.com/go-errors/errors v1.0.1
-	github.com/go-ini/ini v1.48.0
-	github.com/go-ozzo/ozzo-validation v3.6.0+incompatible // indirect
-	github.com/golang/protobuf v1.3.2
-	github.com/google/go-cmp v0.3.1 // indirect
-	github.com/gopherjs/gopherjs v0.0.0-20190915194858-d3ddacdb130f // indirect
-	github.com/gorilla/mux v1.7.3
+	github.com/go-errors/errors v1.4.2
+	github.com/go-ini/ini v1.67.0
+	github.com/golang/protobuf v1.5.2
+	github.com/gorilla/mux v1.8.0
 	github.com/gorilla/rpc v1.2.0
-	github.com/gorilla/websocket v1.4.1 // indirect
-	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
-	github.com/kr/pretty v0.1.0 // indirect
-	github.com/lbryio/lbry.go v1.1.2
-	github.com/lbryio/lbryschema.go v0.0.0-20190602173230-6d2f69a36f46
-	github.com/lbryio/ozzo-validation v0.0.0-20170323141101-d1008ad1fd04
-	github.com/lbryio/types v0.0.0-20191009145016-1bb8107e04f8
+	github.com/lbryio/ozzo-validation v3.0.3-0.20170512160344-202201e212ec+incompatible
+	github.com/lbryio/types v0.0.0-20220224142228-73610f6654a6
 	github.com/lyoshenka/bencode v0.0.0-20180323155644-b7abd7672df5
-	github.com/mitchellh/mapstructure v1.1.2
-	github.com/nlopes/slack v0.6.0
-	github.com/onsi/ginkgo v1.10.2 // indirect
-	github.com/onsi/gomega v1.7.0 // indirect
-	github.com/sebdah/goldie v0.0.0-20190531093107-d313ffb52c77
-	github.com/sergi/go-diff v1.0.0
-	github.com/shopspring/decimal v0.0.0-20191009025716-f1972eb1d1f5
-	github.com/sirupsen/logrus v1.4.2
-	github.com/smartystreets/assertions v1.0.1 // indirect
-	github.com/smartystreets/goconvey v0.0.0-20190731233626-505e41936337 // indirect
-	github.com/spf13/cast v1.3.0
-	github.com/stretchr/testify v1.4.0
-	github.com/uber-go/atomic v1.4.0
-	github.com/ybbus/jsonrpc v0.0.0-20180411222309-2a548b7d822d
-	go.uber.org/atomic v1.4.0 // indirect
-	golang.org/x/crypto v0.0.0-20191002192127-34f69633bfdc
-	golang.org/x/net v0.0.0-20191009170851-d66e71096ffb
-	golang.org/x/sys v0.0.0-20191009170203-06d7bd2c5f4f // indirect
-	golang.org/x/text v0.3.2 // indirect
-	golang.org/x/time v0.0.0-20190921001708-c4c64cad1fd0
-	google.golang.org/genproto v0.0.0-20191009194640-548a555dbc03 // indirect
-	google.golang.org/grpc v1.24.0
-	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
-	gopkg.in/ini.v1 v1.48.0 // indirect
+	github.com/mitchellh/mapstructure v1.5.0
+	github.com/sebdah/goldie v1.0.0
+	github.com/sergi/go-diff v1.3.1
+	github.com/shopspring/decimal v1.3.1
+	github.com/sirupsen/logrus v1.9.0
+	github.com/slack-go/slack v0.12.1
+	github.com/spf13/cast v1.5.0
+	github.com/stretchr/testify v1.8.2
+	github.com/ybbus/jsonrpc/v2 v2.1.7
+	go.uber.org/atomic v1.10.0
+	golang.org/x/crypto v0.7.0
+	golang.org/x/net v0.8.0
+	golang.org/x/oauth2 v0.6.0
+	golang.org/x/text v0.8.0
+	golang.org/x/time v0.3.0
+	google.golang.org/grpc v1.53.0
 	gopkg.in/nullbio/null.v6 v6.0.0-20161116030900-40264a2e6b79
-	gopkg.in/yaml.v2 v2.2.4 // indirect
+	gotest.tools v2.2.0+incompatible
 )
 
-go 1.13
+require (
+	github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a // indirect
+	github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f // indirect
+	github.com/btcsuite/go-socks v0.0.0-20170105172521-4720035b7bfd // indirect
+	github.com/btcsuite/websocket v0.0.0-20150119174127-31079b680792 // indirect
+	github.com/google/go-cmp v0.5.9 // indirect
+	github.com/gorilla/websocket v1.4.2 // indirect
+	github.com/onsi/gomega v1.7.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	golang.org/x/sys v0.6.0 // indirect
+	google.golang.org/appengine v1.6.7 // indirect
+	google.golang.org/genproto v0.0.0-20230110181048-76db0878b65f // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

go.sum

@@ -1,228 +1,150 @@
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 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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-google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
-google.golang.org/appengine v1.4.0 h1:/wp5JvzpHIxhs/dumFmF7BXTf3Z+dd4uXta4kVyO508=
-google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
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-google.golang.org/genproto v0.0.0-20191009194640-548a555dbc03/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
-google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
-google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
-google.golang.org/grpc v1.24.0 h1:vb/1TCsVn3DcJlQ0Gs1yB1pKI6Do2/QNwxdKqmc/b0s=
-google.golang.org/grpc v1.24.0/go.mod h1:XDChyiUovWa60DnaeDeZmSW86xtLtjtZbwvSiRnRtcA=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/appengine v1.6.7 h1:FZR1q0exgwxzPzp/aF+VccGrSfxfPpkBqjIIEq3ru6c=
+google.golang.org/appengine v1.6.7/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
+google.golang.org/genproto v0.0.0-20230110181048-76db0878b65f h1:BWUVssLB0HVOSY78gIdvk1dTVYtT1y8SBWtPYuTJ/6w=
+google.golang.org/genproto v0.0.0-20230110181048-76db0878b65f/go.mod h1:RGgjbofJ8xD9Sq1VVhDM1Vok1vRONV+rg+CjzG4SZKM=
+google.golang.org/grpc v1.53.0 h1:LAv2ds7cmFV/XTS3XG1NneeENYrXGmorPxsBbptIjNc=
+google.golang.org/grpc v1.53.0/go.mod h1:OnIrk0ipVdj4N5d9IUoFUx72/VlD7+jUsHwZgwSMQpw=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175w=
+google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
-gopkg.in/ini.v1 v1.41.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
-gopkg.in/ini.v1 v1.48.0 h1:URjZc+8ugRY5mL5uUeQH/a63JcHwdX9xZaWvmNWD7z8=
-gopkg.in/ini.v1 v1.48.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
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 gopkg.in/nullbio/null.v6 v6.0.0-20161116030900-40264a2e6b79/go.mod h1:gWkaRU7CoXpezCBWfWjm3999QqS+1pYPXGbqQCTMzo8=
-gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 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.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.4 h1:/eiJrUcujPVeJ3xlSWaiNi3uSVmDGBK1pDHUHAnao1I=
-gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gotest.tools v2.2.0+incompatible h1:VsBPFP1AI068pPrMxtb/S8Zkgf9xEmTLJjfM+P5UIEo=
 gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
-honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

lbrycrd/channel.go

@@ -3,11 +3,12 @@ package lbrycrd
 import (
 	"github.com/btcsuite/btcd/btcec"
 	"github.com/lbryio/lbry.go/v2/extras/errors"
-	c "github.com/lbryio/lbryschema.go/claim"
+	"github.com/lbryio/lbry.go/v2/schema/keys"
+	c "github.com/lbryio/lbry.go/v2/schema/stake"
 	pb "github.com/lbryio/types/v2/go"
 )
 
-func NewChannel() (*c.ClaimHelper, *btcec.PrivateKey, error) {
+func NewChannel() (*c.StakeHelper, *btcec.PrivateKey, error) {
 	claimChannel := new(pb.Claim_Channel)
 	channel := new(pb.Channel)
 	claimChannel.Channel = channel
@@ -19,21 +20,21 @@ func NewChannel() (*c.ClaimHelper, *btcec.PrivateKey, error) {
 	if err != nil {
 		return nil, nil, errors.Err(err)
 	}
-	pubkeyBytes, err := c.PublicKeyToDER(privateKey.PubKey())
+	pubkeyBytes, err := keys.PublicKeyToDER(privateKey.PubKey())
 	if err != nil {
 		return nil, nil, errors.Err(err)
 	}
 
-	helper := c.ClaimHelper{Claim: pbClaim}
+	helper := c.StakeHelper{Claim: pbClaim}
 	helper.Version = c.NoSig
-	helper.GetChannel().PublicKey = pubkeyBytes
-	helper.Tags = []string{}
+	helper.Claim.GetChannel().PublicKey = pubkeyBytes
+	helper.Claim.Tags = []string{}
 	coverSrc := new(pb.Source)
-	helper.GetChannel().Cover = coverSrc
-	helper.Languages = []*pb.Language{}
+	helper.Claim.GetChannel().Cover = coverSrc
+	helper.Claim.Languages = []*pb.Language{}
 	thumbnailSrc := new(pb.Source)
-	helper.Thumbnail = thumbnailSrc
-	helper.Locations = []*pb.Location{}
+	helper.Claim.Thumbnail = thumbnailSrc
+	helper.Claim.Locations = []*pb.Location{}
 
 	return &helper, privateKey, nil
 }

lbrycrd/claim.go

@@ -4,14 +4,14 @@ import (
 	"encoding/hex"
 
 	"github.com/lbryio/lbry.go/v2/extras/errors"
-	c "github.com/lbryio/lbryschema.go/claim"
+	c "github.com/lbryio/lbry.go/v2/schema/stake"
 	pb "github.com/lbryio/types/v2/go"
 
 	"github.com/btcsuite/btcd/btcec"
 	"github.com/btcsuite/btcd/wire"
 )
 
-func NewImageStreamClaim() (*c.ClaimHelper, error) {
+func NewImageStreamClaim() (*c.StakeHelper, error) {
 	streamClaim := new(pb.Claim_Stream)
 	stream := new(pb.Stream)
 	image := new(pb.Stream_Image)
@@ -23,12 +23,12 @@ func NewImageStreamClaim() (*c.ClaimHelper, error) {
 	pbClaim := new(pb.Claim)
 	pbClaim.Type = streamClaim
 
-	helper := c.ClaimHelper{Claim: pbClaim}
+	helper := c.StakeHelper{Claim: pbClaim}
 
 	return &helper, nil
 }
 
-func NewVideoStreamClaim() (*c.ClaimHelper, error) {
+func NewVideoStreamClaim() (*c.StakeHelper, error) {
 	streamClaim := new(pb.Claim_Stream)
 	stream := new(pb.Stream)
 	video := new(pb.Stream_Video)
@@ -39,12 +39,12 @@ func NewVideoStreamClaim() (*c.ClaimHelper, error) {
 	pbClaim := new(pb.Claim)
 	pbClaim.Type = streamClaim
 
-	helper := c.ClaimHelper{Claim: pbClaim}
+	helper := c.StakeHelper{Claim: pbClaim}
 
 	return &helper, nil
 }
 
-func NewStreamClaim(title, description string) (*c.ClaimHelper, error) {
+func NewStreamClaim(title, description string) (*c.StakeHelper, error) {
 	streamClaim := new(pb.Claim_Stream)
 	stream := new(pb.Stream)
 	streamClaim.Stream = stream
@@ -52,14 +52,14 @@ func NewStreamClaim(title, description string) (*c.ClaimHelper, error) {
 	pbClaim := new(pb.Claim)
 	pbClaim.Type = streamClaim
 
-	helper := c.ClaimHelper{Claim: pbClaim}
-	helper.Title = title
-	helper.Description = description
+	helper := c.StakeHelper{Claim: pbClaim}
+	helper.Claim.Title = title
+	helper.Claim.Description = description
 
 	return &helper, nil
 }
 
-func SignClaim(rawTx *wire.MsgTx, privKey btcec.PrivateKey, claim, channel *c.ClaimHelper, channelClaimID string) error {
+func SignClaim(rawTx *wire.MsgTx, privKey btcec.PrivateKey, claim, channel *c.StakeHelper, channelClaimID string) error {
 	claimIDHexBytes, err := hex.DecodeString(channelClaimID)
 	if err != nil {
 		return errors.Err(err)

lbrycrd/client.go

@@ -7,7 +7,7 @@ import (
 	"strconv"
 
 	"github.com/lbryio/lbry.go/v2/extras/errors"
-	c "github.com/lbryio/lbryschema.go/claim"
+	c "github.com/lbryio/lbry.go/v2/schema/stake"
 
 	"github.com/btcsuite/btcd/btcec"
 	"github.com/btcsuite/btcd/btcjson"
@@ -271,7 +271,7 @@ const (
 	ClaimSupport
 )
 
-func (c *Client) AddStakeToTx(rawTx *wire.MsgTx, claim *c.ClaimHelper, name string, claimAmount float64, scriptType ScriptType) error {
+func (c *Client) AddStakeToTx(rawTx *wire.MsgTx, claim *c.StakeHelper, name string, claimAmount float64, scriptType ScriptType) error {
 
 	address, err := c.GetNewAddress("")
 	if err != nil {
@@ -314,7 +314,7 @@ func (c *Client) AddStakeToTx(rawTx *wire.MsgTx, claim *c.ClaimHelper, name stri
 	return nil
 }
 
-func (c *Client) CreateChannel(name string, amount float64) (*c.ClaimHelper, *btcec.PrivateKey, error) {
+func (c *Client) CreateChannel(name string, amount float64) (*c.StakeHelper, *btcec.PrivateKey, error) {
 	channel, key, err := NewChannel()
 	if err != nil {
 		return nil, nil, err

readme.md

@@ -2,6 +2,8 @@
 
 lbry.go is a set of tools and projects implemented in Golang. See each subfolder for more details
 
+**there are significant updates in the [v3 branch](https://github.com/lbryio/lbry.go/tree/v3). if you're starting a new project, strongly consider using that version instead**
+
 [![Build Status](https://travis-ci.org/lbryio/lbry.go.svg?branch=master)](https://travis-ci.org/lbryio/lbry.go)
 
 This project uses Go modules. Make sure you have Go 1.11+ installed.
@@ -34,7 +36,7 @@ This project is MIT licensed. For the full license, see [LICENSE](LICENSE).
 ## Security
 
 We take security seriously. Please contact security@lbry.com regarding any issues you may encounter.
-Our PGP key is [here](https://keybase.io/lbry/key.asc) if you need it.
+Our PGP key is [here](https://lbry.com/faq/pgp-key) if you need it.
 
 ## Contact
 

schema/.gitignore

@@ -0,0 +1,4 @@
+.idea/
+lbryschema-cli
+lbryschema-python-binding.h
+lbryschema-python-binding.so

schema/.travis.yml

@@ -0,0 +1,9 @@
+os: linux
+dist: trusty
+language: go
+
+go:
+  - 1.15.x
+
+script:
+  - ./build_and_test.sh

schema/address/address_test.go

@@ -0,0 +1,29 @@
+package address
+
+import "testing"
+
+func TestDecodeAddressLBRYCrdMain(t *testing.T) {
+	addr := "bUc9gyCJPKu2CBYpTvJ98MdmsLb68utjP6"
+	correct := [25]byte{85, 174, 41, 64, 245, 110, 91, 239, 43, 208, 32, 73, 115, 20, 70, 204, 83, 199, 3,
+		206, 210, 176, 194, 188, 193}
+	result, err := DecodeAddress(addr, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+	}
+	if result != correct {
+		t.Error("Mismatch")
+	}
+}
+
+func TestEncodeAddressLBRYCrdMain(t *testing.T) {
+	addr := [25]byte{85, 174, 41, 64, 245, 110, 91, 239, 43, 208, 32, 73, 115, 20, 70, 204, 83, 199, 3,
+		206, 210, 176, 194, 188, 193}
+	correct := "bUc9gyCJPKu2CBYpTvJ98MdmsLb68utjP6"
+	result, err := EncodeAddress(addr, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+	}
+	if result != correct {
+		t.Error("Mismatch")
+	}
+}

schema/address/base58/base58_test.go

@@ -0,0 +1 @@
+package base58

schema/address/base58/character.go

@@ -0,0 +1,21 @@
+package base58
+
+import (
+	"errors"
+	"math/big"
+)
+
+var b58Characters = [58]byte{0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x41, 0x42, 0x43, 0x44, 0x45,
+	0x46, 0x47, 0x48, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55,
+	0x56, 0x57, 0x58, 0x59, 0x5a, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
+	0x6a, 0x6b, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
+	0x79, 0x7a}
+
+func CharacterIndex(character byte) (*big.Int, error) {
+	for i := 0; i < 58; i++ {
+		if b58Characters[i] == character {
+			return big.NewInt(int64(i)), nil
+		}
+	}
+	return nil, errors.New("invalid character")
+}

schema/address/base58/checksum.go

@@ -0,0 +1,20 @@
+package base58
+
+import "crypto/sha256"
+
+const checksumLength = 4
+
+func VerifyBase58Checksum(v []byte) bool {
+	checksum := [checksumLength]byte{}
+	for i := range checksum {
+		checksum[i] = v[len(v)-checksumLength+i]
+	}
+	real_checksum := sha256.Sum256(v[:len(v)-checksumLength])
+	real_checksum = sha256.Sum256(real_checksum[:])
+	for i, c := range checksum {
+		if c != real_checksum[i] {
+			return false
+		}
+	}
+	return true
+}

schema/address/base58/decode.go

@@ -0,0 +1,39 @@
+package base58
+
+import (
+	"errors"
+	"math/big"
+)
+
+func DecodeBase58(value string, size int64) ([]byte, error) {
+	buf := []byte(value)
+	longValue := big.NewInt(0)
+	result := make([]byte, size)
+	for i := int64(len(buf) - 1); i >= 0; i-- {
+		to_add := big.NewInt(0)
+		to_add = to_add.Exp(big.NewInt(58), big.NewInt(i), to_add)
+		c, err := CharacterIndex(buf[int64(len(buf))-i-1])
+		if err != nil {
+			return result, err
+		}
+		to_add = to_add.Mul(c, to_add)
+		longValue = longValue.Add(to_add, longValue)
+	}
+	for i := size - 1; i >= 0; i-- {
+		m := big.NewInt(0)
+		longValue, m = longValue.DivMod(longValue, big.NewInt(256), m)
+		bs := m.Bytes()
+		if len(bs) == 0 {
+			bs = append(bs, 0x00)
+		}
+		b := byte(bs[0])
+		result[i] = b
+	}
+	if longValue.Int64() != 0 {
+		return result, errors.New("cannot decode to the given size")
+	}
+	if size != int64(len(result)) {
+		return result, errors.New("length mismatch")
+	}
+	return result, nil
+}

schema/address/base58/encode.go

@@ -0,0 +1,32 @@
+package base58
+
+import (
+	"math/big"
+)
+
+func EncodeBase58(data []byte) string {
+	longValue := big.NewInt(0)
+	result := ""
+	for i := 0; i < len(data); i++ {
+		to_add := big.NewInt(0)
+		to_add = to_add.Exp(big.NewInt(256), big.NewInt(int64(i)), to_add)
+		to_add = to_add.Mul(big.NewInt(int64(data[24-i])), to_add)
+		longValue = longValue.Add(to_add, longValue)
+	}
+	i := 0
+	for {
+		m := big.NewInt(0)
+		longValue, m = longValue.DivMod(longValue, big.NewInt(58), m)
+		bs := m.Bytes()
+		if len(bs) == 0 {
+			bs = append(bs, 0x00)
+		}
+		b := b58Characters[bs[0]]
+		result = string(b) + result
+		if longValue.Int64() == 0 {
+			break
+		}
+		i += 1
+	}
+	return result
+}

schema/address/decode.go

@@ -0,0 +1,19 @@
+package address
+
+import (
+	"github.com/lbryio/lbry.go/v2/extras/errors"
+	"github.com/lbryio/lbry.go/v2/schema/address/base58"
+)
+
+func DecodeAddress(address string, blockchainName string) ([addressLength]byte, error) {
+	decoded, err := base58.DecodeBase58(address, addressLength)
+	if err != nil {
+		return [addressLength]byte{}, errors.Err("failed to decode")
+	}
+	buf := [addressLength]byte{}
+	for i, b := range decoded {
+		buf[i] = b
+	}
+
+	return ValidateAddress(buf, blockchainName)
+}

schema/address/encode.go

@@ -0,0 +1,13 @@
+package address
+
+import (
+	"github.com/lbryio/lbry.go/v2/schema/address/base58"
+)
+
+func EncodeAddress(address [addressLength]byte, blockchainName string) (string, error) {
+	buf, err := ValidateAddress(address, blockchainName)
+	if err != nil {
+		return "", err
+	}
+	return base58.EncodeBase58(buf[:]), nil
+}

schema/address/validate.go

@@ -0,0 +1,69 @@
+package address
+
+import (
+	"github.com/lbryio/lbry.go/v2/extras/errors"
+	"github.com/lbryio/lbry.go/v2/schema/address/base58"
+)
+
+const lbrycrdMainPubkeyPrefix = byte(85)
+const lbrycrdMainScriptPrefix = byte(122)
+
+const lbrycrdTestnetPubkeyPrefix = byte(111)
+const lbrycrdTestnetScriptPrefix = byte(196)
+
+const lbrycrdRegtestPubkeyPrefix = byte(111)
+const lbrycrdRegtestScriptPrefix = byte(196)
+
+const prefixLength = 1
+const pubkeyLength = 20
+const checksumLength = 4
+const addressLength = prefixLength + pubkeyLength + checksumLength
+
+const lbrycrdMain = "lbrycrd_main"
+const lbrycrdTestnet = "lbrycrd_testnet"
+const lbrycrdRegtest = "lbrycrd_regtest"
+
+var addressPrefixes = map[string][2]byte{
+	lbrycrdMain:    {lbrycrdMainPubkeyPrefix, lbrycrdMainScriptPrefix},
+	lbrycrdTestnet: {lbrycrdTestnetPubkeyPrefix, lbrycrdTestnetScriptPrefix},
+	lbrycrdRegtest: {lbrycrdRegtestPubkeyPrefix, lbrycrdRegtestScriptPrefix},
+}
+
+func PrefixIsValid(address [addressLength]byte, blockchainName string) bool {
+	prefix := address[0]
+	for _, addrPrefix := range addressPrefixes[blockchainName] {
+		if addrPrefix == prefix {
+			return true
+		}
+	}
+	return false
+}
+
+func PubKeyIsValid(address [addressLength]byte) bool {
+	pubkey := address[prefixLength : pubkeyLength+prefixLength]
+	// TODO: validate this for real
+	if len(pubkey) != pubkeyLength {
+		return false
+	}
+	return true
+}
+
+func ChecksumIsValid(address [addressLength]byte) bool {
+	return base58.VerifyBase58Checksum(address[:])
+}
+
+func ValidateAddress(address [addressLength]byte, blockchainName string) ([addressLength]byte, error) {
+	if blockchainName != lbrycrdMain && blockchainName != lbrycrdTestnet && blockchainName != lbrycrdRegtest {
+		return address, errors.Err("invalid blockchain name")
+	}
+	if !PrefixIsValid(address, blockchainName) {
+		return address, errors.Err("invalid prefix")
+	}
+	if !PubKeyIsValid(address) {
+		return address, errors.Err("invalid pubkey")
+	}
+	if !ChecksumIsValid(address) {
+		return address, errors.Err("invalid address checksum")
+	}
+	return address, nil
+}

schema/build.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+set -euxo pipefail
+go build ./...
+go build ./cli/lbryschema-cli.go

schema/build_and_test.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+set -euxo pipefail
+./build.sh
+./test.sh

schema/cli/lbryschema-cli.go

@@ -0,0 +1,44 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/lbryio/lbry.go/v2/schema/stake"
+)
+
+func main() {
+	args := os.Args[1:]
+	if len(args) == 1 {
+		claimBytes := []byte(args[0])
+		decoded, err := stake.DecodeClaimBytes(claimBytes, "lbrycrd_main")
+		if err != nil {
+			fmt.Println("Decoding error:", err)
+			return
+		}
+		text, err := decoded.RenderJSON()
+		if err != nil {
+			fmt.Println("Decoding error:", err)
+			return
+		}
+		fmt.Println(text)
+		return
+	} else if (len(args) == 2) && (args[1] == "--decode_hex") {
+		claimHex := args[0]
+		decoded, err := stake.DecodeClaimHex(claimHex, "lbrycrd_main")
+		if err != nil {
+			fmt.Println("Decoding error:", err)
+			return
+		}
+		text, err := decoded.RenderJSON()
+		if err != nil {
+			fmt.Println("Decoding error:", err)
+			return
+		}
+		fmt.Println(text)
+		return
+	} else {
+		fmt.Println("encountered an error\nusage: \n\tlbryschema-cli <value to decode> [--decode_hex]")
+		return
+	}
+}

schema/keys/keys.go

@@ -0,0 +1,108 @@
+package keys
+
+import (
+	"crypto/elliptic"
+	"crypto/x509/pkix"
+	"encoding/asn1"
+	"encoding/pem"
+
+	"github.com/lbryio/lbry.go/v2/extras/errors"
+
+	"github.com/btcsuite/btcd/btcec"
+)
+
+type publicKeyInfo struct {
+	Raw       asn1.RawContent
+	Algorithm pkix.AlgorithmIdentifier
+	PublicKey asn1.BitString
+}
+
+func PublicKeyToDER(publicKey *btcec.PublicKey) ([]byte, error) {
+	var publicKeyBytes []byte
+	var publicKeyAlgorithm pkix.AlgorithmIdentifier
+	var err error
+	pub := publicKey.ToECDSA()
+	publicKeyBytes = elliptic.Marshal(pub.Curve, pub.X, pub.Y)
+	//ans1 encoding oid for ecdsa public key https://github.com/golang/go/blob/release-branch.go1.12/src/crypto/x509/x509.go#L457
+	publicKeyAlgorithm.Algorithm = asn1.ObjectIdentifier{1, 2, 840, 10045, 2, 1}
+	//asn1 encoding oid for secp256k1 https://github.com/bitpay/bitpay-go/blob/v2.2.2/key_utils/key_utils.go#L30
+	paramBytes, err := asn1.Marshal(asn1.ObjectIdentifier{1, 3, 132, 0, 10})
+	if err != nil {
+		return nil, errors.Err(err)
+	}
+	publicKeyAlgorithm.Parameters.FullBytes = paramBytes
+
+	return asn1.Marshal(publicKeyInfo{
+		Algorithm: publicKeyAlgorithm,
+		PublicKey: asn1.BitString{
+			Bytes:     publicKeyBytes,
+			BitLength: 8 * len(publicKeyBytes),
+		},
+	})
+
+}
+
+//This type provides compatibility with the btcec package
+type ecPrivateKey struct {
+	Version       int
+	PrivateKey    []byte
+	NamedCurveOID asn1.ObjectIdentifier `asn1:"optional,explicit,tag:0"`
+	PublicKey     asn1.BitString        `asn1:"optional,explicit,tag:1"`
+}
+
+func PrivateKeyToDER(key *btcec.PrivateKey) ([]byte, error) {
+	privateKey := make([]byte, (key.Curve.Params().N.BitLen()+7)/8)
+	oid := asn1.ObjectIdentifier{1, 3, 132, 0, 10}
+	return asn1.Marshal(ecPrivateKey{
+		Version:       1,
+		PrivateKey:    key.D.FillBytes(privateKey),
+		NamedCurveOID: oid,
+		PublicKey:     asn1.BitString{Bytes: elliptic.Marshal(key.Curve, key.X, key.Y)},
+	})
+}
+
+func GetPublicKeyFromBytes(pubKeyBytes []byte) (*btcec.PublicKey, error) {
+	if len(pubKeyBytes) == 33 {
+		return btcec.ParsePubKey(pubKeyBytes, btcec.S256())
+	}
+	PKInfo := publicKeyInfo{}
+	_, err := asn1.Unmarshal(pubKeyBytes, &PKInfo)
+	if err != nil {
+		return nil, errors.Err(err)
+	}
+	pubkeyBytes1 := PKInfo.PublicKey.Bytes
+	return btcec.ParsePubKey(pubkeyBytes1, btcec.S256())
+}
+
+func GetPrivateKeyFromBytes(privKeyBytes []byte) (*btcec.PrivateKey, *btcec.PublicKey, error) {
+	ecPK := ecPrivateKey{}
+	_, err := asn1.Unmarshal(privKeyBytes, &ecPK)
+	if err != nil {
+		return nil, nil, errors.Err(err)
+	}
+	priv, publ := btcec.PrivKeyFromBytes(btcec.S256(), ecPK.PrivateKey)
+	return priv, publ, nil
+}
+
+//Returns a btec.Private key object if provided a correct secp256k1 encoded pem.
+func ExtractKeyFromPem(pm string) (*btcec.PrivateKey, *btcec.PublicKey) {
+	byta := []byte(pm)
+	blck, _ := pem.Decode(byta)
+	var ecp ecPrivateKey
+	asn1.Unmarshal(blck.Bytes, &ecp)
+	return btcec.PrivKeyFromBytes(btcec.S256(), ecp.PrivateKey)
+}
+
+type Signature struct {
+	btcec.Signature
+}
+
+func (s *Signature) LBRYSDKEncode() ([]byte, error) {
+	if s.R == nil || s.S == nil {
+		return nil, errors.Err("invalid signature, both S & R are nil")
+	}
+	rBytes := s.R.Bytes()
+	sBytes := s.S.Bytes()
+
+	return append(rBytes, sBytes...), nil
+}

schema/keys/keys_test.go

@@ -0,0 +1,95 @@
+package keys
+
+import (
+	"bytes"
+	"encoding/hex"
+	"encoding/pem"
+	"testing"
+
+	"github.com/btcsuite/btcd/btcec"
+	"gotest.tools/assert"
+)
+
+// The purpose of this test, is to make sure the function converts btcec.PublicKey to DER format the same way
+// lbry SDK does as this is the bytes that are put into protobuf and the same bytes are used for verify signatures.
+// Making sure these
+func TestPublicKeyToDER(t *testing.T) {
+	publicKeyHex := "3056301006072a8648ce3d020106052b8104000a03420004d015365a40f3e5c03c87227168e5851f44659837bcf6a3398ae633bc37d04ee19baeb26dc888003bd728146dbea39f5344bf8c52cedaf1a3a1623a0166f4a367"
+	pubKeyBytes, err := hex.DecodeString(publicKeyHex)
+	if err != nil {
+		t.Error(err)
+	}
+
+	p1, err := GetPublicKeyFromBytes(pubKeyBytes)
+	if err != nil {
+		t.Error(err)
+	}
+
+	pubkeyBytes2, err := PublicKeyToDER(p1)
+	if err != nil {
+		t.Error(err)
+	}
+	for i, b := range pubKeyBytes {
+		assert.Assert(t, b == pubkeyBytes2[i], "DER format in bytes must match!")
+	}
+
+	p2, err := GetPublicKeyFromBytes(pubkeyBytes2)
+	if err != nil {
+		t.Error(err)
+	}
+	assert.Assert(t, p1.IsEqual(p2), "The keys produced must be the same key!")
+}
+
+func TestPrivateKeyToDER(t *testing.T) {
+	private1, err := btcec.NewPrivateKey(btcec.S256())
+	if err != nil {
+		t.Fatal(err)
+	}
+	bytes, err := PrivateKeyToDER(private1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	private2, _, err := GetPrivateKeyFromBytes(bytes)
+	if err != nil {
+		t.Error(err)
+	}
+	if !private1.ToECDSA().Equal(private2.ToECDSA()) {
+		t.Error("private keys dont match")
+	}
+}
+
+func TestGetPrivateKeyFromBytes(t *testing.T) {
+	private, err := btcec.NewPrivateKey(btcec.S256())
+	if err != nil {
+		t.Fatal(err)
+	}
+	bytes, err := PrivateKeyToDER(private)
+	private2, _, err := GetPrivateKeyFromBytes(bytes)
+	if !private.ToECDSA().Equal(private2.ToECDSA()) {
+		t.Error("private keys dont match")
+	}
+}
+
+func TestEncodePEMAndBack(t *testing.T) {
+	private1, err := btcec.NewPrivateKey(btcec.S256())
+	if err != nil {
+		t.Fatal(err)
+	}
+	b := bytes.NewBuffer(nil)
+	derBytes, err := PrivateKeyToDER(private1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = pem.Encode(b, &pem.Block{Type: "PRIVATE KEY", Bytes: derBytes})
+	if err != nil {
+		t.Fatal(err)
+	}
+	println(string(b.Bytes()))
+	private2, _ := ExtractKeyFromPem(string(b.Bytes()))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !private1.ToECDSA().Equal(private2.ToECDSA()) {
+		t.Error("private keys dont match")
+	}
+}

schema/stake/decode_test.go

@@ -0,0 +1,105 @@
+package stake
+
+import (
+	"encoding/hex"
+	"testing"
+
+	"github.com/lbryio/lbry.go/v2/schema/keys"
+
+	pb "github.com/lbryio/types/v2/go"
+
+	"github.com/btcsuite/btcd/btcec"
+)
+
+type rawClaim struct {
+	Hex     string
+	ClaimID string
+}
+
+var raw_claims = []string{
+	"08011002225e0801100322583056301006072a8648ce3d020106052b8104000a03420004d015365a40f3e5c03c87227168e5851f44659837bcf6a3398ae633bc37d04ee19baeb26dc888003bd728146dbea39f5344bf8c52cedaf1a3a1623a0166f4a367",
+	"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",
+	"080110011ad7010801128f01080410011a0c47616d65206f66206c696665221047616d65206f66206c696665206769662a0b4a6f686e20436f6e776179322e437265617469766520436f6d6d6f6e73204174747269627574696f6e20342e3020496e7465726e6174696f6e616c38004224080110011a195569c917f18bf5d2d67f1346aa467b218ba90cdbf2795676da250000803f4a0052005a001a41080110011a30b6adf6e2a62950407ea9fb045a96127b67d39088678d2f738c359894c88d95698075ee6203533d3c204330713aa7acaf2209696d6167652f676966",
+	"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",
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+	"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",
+	"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",
+	"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",
+}
+
+func TestDecodeClaim(t *testing.T) {
+	claimHex := "000aa4010a8a010a30f1303989f58396694b0c5982c97f7e9d9435841d92aa13f4b80f671c27110c469babc4fbf4bd764155eaac089cfc49e8121454554d205045204d45524e45204c41472e6d703418cad0c8012209766964656f2f6d70343230c2c9389731e2a9568f66c78d703736a8c341015ada2e46f5dcc87aa6f08ab17c02df2121d9f6ef74055827a29dfc75801a044e6f6e6532040803180a5a0908b001109001188102421054554d205045204d45524e45204c41474a0944657369206c6f636b62020801"
+	claim, err := DecodeClaimHex(claimHex, "lbrycrd_main")
+	if err != nil {
+		t.Error(err, claim.ClaimID)
+	}
+}
+
+func TestDecodeClaims(t *testing.T) {
+	for _, claim_hex := range raw_claims {
+		claim, err := DecodeClaimHex(claim_hex, "lbrycrd_main")
+		if err != nil {
+			t.Error(err)
+		}
+		serializedHex, err := claim.serializedHexString()
+		if err != nil {
+			t.Error(err)
+		}
+		if serializedHex != claim_hex {
+			t.Error("failed to re-serialize")
+		}
+
+	}
+}
+
+func TestStripSignature(t *testing.T) {
+	claimHex := raw_claims[1]
+	claim, err := DecodeClaimHex(claimHex, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+	}
+	noSig, err := claim.serializedNoSignature()
+	if err != nil {
+		t.Error(err)
+	}
+	if hex.EncodeToString(noSig) != raw_claims[2] {
+		t.Error("failed to remove signature")
+	}
+}
+
+func TestCreateChannelClaim(t *testing.T) {
+	private, err := btcec.NewPrivateKey(btcec.S256())
+	if err != nil {
+		t.Error(err)
+	}
+	pubKeyBytes, err := keys.PublicKeyToDER(private.PubKey())
+	if err != nil {
+		t.Error(err)
+	}
+	claim := &StakeHelper{Claim: newChannelClaim(), Version: NoSig}
+	claim.Claim.GetChannel().PublicKey = pubKeyBytes
+	claim.Claim.Title = "Test Channel Title"
+	claim.Claim.Description = "Test Channel Description"
+	claim.Claim.GetChannel().Cover = &pb.Source{Url: "http://testcoverurl.com"}
+	claim.Claim.Tags = []string{"TagA", "TagB", "TagC"}
+	claim.Claim.Languages = []*pb.Language{{Language: pb.Language_en}, {Language: pb.Language_es}}
+	claim.Claim.Thumbnail = &pb.Source{Url: "http://thumbnailurl.com"}
+	claim.Claim.GetChannel().WebsiteUrl = "http://homepageurl.com"
+	claim.Claim.Locations = []*pb.Location{{Country: pb.Location_AD}, {Country: pb.Location_US, State: "NJ", City: "some city"}}
+
+	rawClaim, err := claim.CompileValue()
+	if err != nil {
+		t.Error(err)
+	}
+
+	claim, err = DecodeClaimBytes(rawClaim, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+	}
+
+	if bytes, err := claim.CompileValue(); err != nil || len(bytes) != len(rawClaim) {
+		t.Error("decoded claim does not match original")
+	}
+
+}

schema/stake/migration.go

@@ -0,0 +1,197 @@
+package stake
+
+import (
+	"encoding/hex"
+
+	"github.com/lbryio/lbry.go/v2/extras/errors"
+	v1pb "github.com/lbryio/types/v1/go"
+	pb "github.com/lbryio/types/v2/go"
+
+	"github.com/btcsuite/btcutil/base58"
+)
+
+const lbrySDHash = "lbry_sd_hash"
+
+func newStreamClaim() *pb.Claim {
+	claimStream := new(pb.Claim_Stream)
+	stream := new(pb.Stream)
+
+	pbClaim := new(pb.Claim)
+	pbClaim.Type = claimStream
+	claimStream.Stream = stream
+
+	return pbClaim
+}
+
+func newChannelClaim() *pb.Claim {
+	claimChannel := new(pb.Claim_Channel)
+	channel := new(pb.Channel)
+
+	pbClaim := new(pb.Claim)
+	pbClaim.Type = claimChannel
+	claimChannel.Channel = channel
+
+	return pbClaim
+}
+
+func setMetaData(claim *pb.Claim, author string, description string, language pb.Language_Language, license string,
+	licenseURL *string, title string, thumbnail *string, nsfw bool) {
+	claim.Title = title
+	claim.Description = description
+
+	claim.GetStream().Author = author
+	claim.Languages = []*pb.Language{{Language: language}}
+
+	if thumbnail != nil {
+		source := new(pb.Source)
+		source.Url = *thumbnail
+		claim.Thumbnail = source
+	}
+	if nsfw {
+		claim.Tags = []string{"mature"}
+	}
+	claim.GetStream().License = license
+	if licenseURL != nil {
+		claim.GetStream().LicenseUrl = *licenseURL
+	}
+}
+
+func migrateV1PBClaim(vClaim v1pb.Claim) (*pb.Claim, error) {
+	if *vClaim.ClaimType == v1pb.Claim_streamType {
+		return migrateV1PBStream(vClaim)
+	}
+	if *vClaim.ClaimType == v1pb.Claim_certificateType {
+		return migrateV1PBChannel(vClaim)
+	}
+	return nil, errors.Err("Could not migrate v1 protobuf claim due to unknown type '%s'.", vClaim.ClaimType.String())
+}
+
+func migrateV1PBStream(vClaim v1pb.Claim) (*pb.Claim, error) {
+	claim := newStreamClaim()
+	source := new(pb.Source)
+	source.MediaType = vClaim.GetStream().GetSource().GetContentType()
+	source.SdHash = vClaim.GetStream().GetSource().GetSource()
+	claim.GetStream().Source = source
+	md := vClaim.GetStream().GetMetadata()
+	if md.GetFee() != nil {
+		claim.GetStream().Fee = new(pb.Fee)
+		claim.GetStream().GetFee().Amount = uint64(*md.GetFee().Amount * 100000000)
+		claim.GetStream().GetFee().Address = md.GetFee().GetAddress()
+		claim.GetStream().GetFee().Currency = pb.Fee_Currency(pb.Fee_Currency_value[md.GetFee().GetCurrency().String()])
+	}
+	if vClaim.GetStream().GetMetadata().GetNsfw() {
+		claim.Tags = []string{"mature"}
+	}
+	thumbnailSource := new(pb.Source)
+	thumbnailSource.Url = md.GetThumbnail()
+	claim.Thumbnail = thumbnailSource
+	language := pb.Language_Language(pb.Language_Language_value[md.GetLanguage().String()])
+	claim.Languages = []*pb.Language{{Language: language}}
+	claim.GetStream().LicenseUrl = md.GetLicenseUrl()
+	claim.GetStream().License = md.GetLicense()
+	claim.Title = md.GetTitle()
+	claim.Description = md.GetDescription()
+	claim.GetStream().Author = md.GetAuthor()
+
+	return claim, nil
+}
+
+func migrateV1PBChannel(vClaim v1pb.Claim) (*pb.Claim, error) {
+	claim := newChannelClaim()
+	claim.GetChannel().PublicKey = vClaim.GetCertificate().PublicKey
+
+	return claim, nil
+}
+
+func migrateV1Claim(vClaim V1Claim) (*pb.Claim, error) {
+	pbClaim := newStreamClaim()
+	//Stream
+	// -->Universal
+	setFee(vClaim.Fee, pbClaim)
+	// -->MetaData
+	language := pb.Language_Language(pb.Language_Language_value[vClaim.Language])
+	setMetaData(pbClaim, vClaim.Author, vClaim.Description, language,
+		vClaim.License, nil, vClaim.Title, vClaim.Thumbnail, false)
+	// -->Source
+	source := new(pb.Source)
+	source.MediaType = vClaim.ContentType
+
+	src, err := hex.DecodeString(vClaim.Sources.LbrySDHash)
+	if err != nil {
+		return nil, errors.Err(err)
+	}
+	source.SdHash = src
+	pbClaim.GetStream().Source = source
+
+	return pbClaim, nil
+}
+
+func migrateV2Claim(vClaim V2Claim) (*pb.Claim, error) {
+	pbClaim := newStreamClaim()
+	//Stream
+	// -->Fee
+	setFee(vClaim.Fee, pbClaim)
+	// -->MetaData
+	language := pb.Language_Language(pb.Language_Language_value[vClaim.Language])
+	setMetaData(pbClaim, vClaim.Author, vClaim.Description, language,
+		vClaim.License, vClaim.LicenseURL, vClaim.Title, vClaim.Thumbnail, vClaim.NSFW)
+	// -->Source
+	source := new(pb.Source)
+	source.MediaType = vClaim.ContentType
+	src, err := hex.DecodeString(vClaim.Sources.LbrySDHash)
+	if err != nil {
+		return nil, errors.Err(err)
+	}
+	source.SdHash = src
+	pbClaim.GetStream().Source = source
+
+	return pbClaim, nil
+}
+
+func migrateV3Claim(vClaim V3Claim) (*pb.Claim, error) {
+	pbClaim := newStreamClaim()
+	//Stream
+	// -->Fee
+	setFee(vClaim.Fee, pbClaim)
+	// -->MetaData
+	language := pb.Language_Language(pb.Language_Language_value[vClaim.Language])
+	setMetaData(pbClaim, vClaim.Author, vClaim.Description, language,
+		vClaim.License, vClaim.LicenseURL, vClaim.Title, vClaim.Thumbnail, vClaim.NSFW)
+	// -->Source
+	source := new(pb.Source)
+	source.MediaType = vClaim.ContentType
+	src, err := hex.DecodeString(vClaim.Sources.LbrySDHash)
+	if err != nil {
+		return nil, errors.Err(err)
+	}
+	source.SdHash = src
+	pbClaim.GetStream().Source = source
+
+	return pbClaim, nil
+}
+
+func setFee(fee *Fee, pbClaim *pb.Claim) {
+	if fee != nil {
+		amount := float32(0.0)
+		currency := pb.Fee_LBC
+		address := ""
+		if fee.BTC != nil {
+			amount = fee.BTC.Amount
+			currency = pb.Fee_BTC
+			address = fee.BTC.Address
+		} else if fee.LBC != nil {
+			amount = fee.LBC.Amount
+			currency = pb.Fee_LBC
+			address = fee.LBC.Address
+		} else if fee.USD != nil {
+			amount = fee.USD.Amount
+			currency = pb.Fee_USD
+			address = fee.USD.Address
+		}
+		pbClaim.GetStream().Fee = new(pb.Fee)
+		//Fee Settings
+		pbClaim.GetStream().GetFee().Amount = uint64(amount * 100000000)
+		pbClaim.GetStream().GetFee().Currency = currency
+		pbClaim.GetStream().GetFee().Address = base58.Decode(address)
+	}
+}

schema/stake/migration_test.go

@@ -0,0 +1,282 @@
+package stake
+
+import (
+	"bytes"
+	"encoding/hex"
+	"fmt"
+	"testing"
+
+	"github.com/lbryio/lbry.go/v2/schema/address"
+
+	"github.com/btcsuite/btcutil/base58"
+	"gotest.tools/assert"
+)
+
+type valueTestPair struct {
+	ValueAsHex string
+	Claim      claimResult
+}
+
+type claimResult struct {
+	Version     string
+	Author      string
+	Title       string
+	Description string
+	License     string
+	LicenseURL  string
+	FeeAmount   float32
+	FeeCurrency string
+	FeeAddress  string
+	ContentType string
+	Language    string
+	LbrySDHash  string
+	Thumbnail   string
+	NSFW        bool
+}
+
+var badJsonVersionTests = []string{
+	"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",
+	"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",
+	"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",
+	"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",
+	"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",
+	"30383031313030313161356330383031313231343038303431303030316130303232303032613030333230303338303034613030353230303561303031613432303830313130303131613330333933333030616561386262623636613238613966633031316231666238373634636364386338323633656233343532623733303832363233656534356431363866646530343836346435303563376535396539353430636263643766623336323230613639366436313637363532663661373036353637",
+}
+
+var jsonVersionTests = []valueTestPair{
+	{"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",
+		claimResult{"0.0.1",
+			"root",
+			"1000MB speed test file",
+			"1000MB test file to measure download speed on Lbry p2p-network.",
+			"None",
+			"",
+			1,
+			"LBC",
+			"bPwGA9h7uijoy5uAvzVPQw9QyLoYZehHJo",
+			"application/octet-stream",
+			"", //"English" is not supported for conversion.
+			"bd94033d13f4f3908708701caf565bfa09cfadf2f34fadf4a73fb86b295d1b21a7e64805994e45b5fbc650f30bac4874",
+			"/homerobert/lbry/speed.jpg",
+			false,
+		},
+	},
+	{"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",
+		claimResult{"0.0.1",
+			"Written and directed by Todd Berger",
+			"It's a Disaster",
+			"Four couples meet for Sunday brunch only to discover they are stuck in a house together as the world may be about to end.",
+			"Oscilloscope Laboratories",
+			"",
+			50,
+			"LBC",
+			"bLVs3ifPruyZnpYmFfT2TLAmhqZvgjpQDa",
+			"video/quicktime",
+			"language:en ",
+			"dcc1bf28893a5037eab9e4a9cd7a4bfe6f76ad6c21970ea4ceee0122f502ef079657d4dca456b4be3249849c4e1868b8",
+			"http://ia.media-imdb.com/images/M/MV5BMTQwNjYzMTQ0Ml5BMl5BanBnXkFtZTcwNDUzODM5Nw@@._V1_SY1000_CR0,0,673,1000_AL_.jpg",
+			false,
+		},
+	},
+	{"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",
+		claimResult{"0.0.1",
+			"Samuel Bryan",
+			"Meet the Team Episode 1",
+			"Advisor Alex Tabarrok gives his take on LBRY.",
+			"LBRY, Inc.",
+			"",
+			0,
+			"UNKNOWN_CURRENCY",
+			"",
+			"video/mp4",
+			"language:en ",
+			"799a1de93b8e556d7f668103a6ffc48ac5fd6801dd4d89cae6773c80d81c283710fd4fd25ed68d0dbeee268f82914145",
+			"http://ia.media-imdb.com/images/M/MV5BMTQwNjYzMTQ0Ml5BMl5BanBnXkFtZTcwNDUzODM5Nw@@._V1_SY1000_CR0,0,673,1000_AL_.jpg",
+			false,
+		},
+	},
+	{"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",
+		claimResult{"0.0.2",
+			"https://www.videezy.com/clouds/2676-dark-storm-clouds-royalty-free-hd-stock-video",
+			"clouds",
+			"clouds",
+			"creative commons",
+			"",
+			0.01,
+			"USD",
+			"bMHmZKZbPq6bPBEQFc8MXpiDhF9f7MVxMR",
+			"video/mp4",
+			"language:en ",
+			"2bd8d9dd1a218c7f56717e53fa510efd5a8c089ed1f2675a0f8d0b5b8bb3c1ed383cb9f3aeb9b891789761305293979a",
+			"",
+			false,
+		},
+	},
+	{"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",
+		claimResult{"0.0.2",
+			"y",
+			"x",
+			"z",
+			"Creative Commons Attribution 3.0 United States",
+			"https://creativecommons.org/licenses/by/3.0/us/legalcode",
+			1,
+			"LBC",
+			"bVPqWwYfvjBHYBouuvknbQMXUZFvLdEs5M",
+			"text/plain",
+			"language:en ",
+			"7c21ee237324e5a50a3425620fe6cc400d3cccc05519867cda1b9c10a977194e31200414d87146bff470bab7f7d75478",
+			"",
+			false,
+		},
+	},
+	{"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",
+		claimResult{"0.0.3",
+			"Ernest Cline",
+			"Ready Player One (Audiobook 1 of 2)",
+			"In the year 2044, the world is gripped by an energy crisis causing widespread social problems and economic stagnation. The primary escape for most people is the OASIS, a virtual universe, accessed with a visor and haptic gloves. It functions both as an MMORPG and as a virtual society, with its currency being the most stable currency in the world. It was created by James Halliday, whose will left a series of clues towards an Easter Egg within the OASIS that would grant whoever found it both his fortune and control of the OASIS itself. This has led to an intense interest in all aspects of 80s pop culture, which Halliday made clear would be essential to finding his egg.",
+			"Creative Commons Attribution 3.0 United States",
+			"https://creativecommons.org/licenses/by/3.0/us/legalcode",
+			0.4,
+			"USD",
+			"bHSe3KAvtVSR4m6S11zduuF9XHtwscDjoE",
+			"audio/mpeg",
+			"language:en ",
+			"340e1dda0e8414c21fafbb1f28f2c8b384821fe0d1e2a7143a4810545e64e26a4105042d4d47dc9754b618ecdfe0d191",
+			"http://i.imgur.com/lyKEHZc.jpg",
+			false,
+		},
+	},
+	{"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",
+		claimResult{"0.0.3",
+			"brazzers",
+			"hot porn",
+			"hot porn\nbrazzers",
+			"Copyright 2016 brazzers",
+			"",
+			1,
+			"LBC",
+			"bRTxtCUpj6TvJHgWcRsGcHaFyrRLkkiXgG",
+			"video/mp4",
+			"language:en ",
+			"fc0dac5cfc526354963ff1769f6e739c4e42a0790420ffab9fa3b6401e93ae5a0515eff960f8c9c272907eda6fcba254",
+			"",
+			true,
+		},
+	},
+}
+
+func TestBadMigrationFromJSON(t *testing.T) {
+	for _, hexStr := range badJsonVersionTests {
+		valueBytes, err := hex.DecodeString(hexStr)
+		if err != nil {
+			t.Error(err)
+		}
+		_, err = DecodeClaimBytes(valueBytes, "lbrycrd_main")
+		if err == nil {
+			t.Error(fmt.Sprintf("Decode error: The raw claim '%s' should have failed decoding.", hexStr))
+		}
+	}
+}
+
+func TestMigrationFromJSON(t *testing.T) {
+	for _, pair := range jsonVersionTests {
+		valueBytes, err := hex.DecodeString(pair.ValueAsHex)
+		if err != nil {
+			t.Error(err)
+		}
+		helper, err := DecodeClaimBytes(valueBytes, "lbrycrd_main")
+		if err != nil {
+			t.Error("Decode error: ", err)
+		}
+		if helper.Claim.GetStream().GetAuthor() != pair.Claim.Author {
+			t.Error("Author mismatch: expected", pair.Claim.Author, "got", helper.Claim.GetStream().GetAuthor())
+		}
+		if helper.Claim.GetTitle() != pair.Claim.Title {
+			t.Error("Title mismatch: expected", pair.Claim.Title, "got '", helper.Claim.GetTitle(), "'")
+		}
+		if helper.Claim.GetDescription() != pair.Claim.Description {
+			t.Error("Description mismatch: expected", pair.Claim.Description, "got '", helper.Claim.GetDescription(), "'")
+		}
+		if helper.Claim.GetStream().GetLicense() != pair.Claim.License {
+			t.Error("License mismatch: expected", pair.Claim.License, "got", helper.Claim.GetStream().GetLicense())
+		}
+		if helper.Claim.GetStream().GetLicenseUrl() != pair.Claim.LicenseURL {
+			t.Error("LicenseURL mismatch: expected", pair.Claim.LicenseURL, "got", helper.Claim.GetStream().GetLicenseUrl())
+		}
+		if helper.Claim.GetStream().GetFee().GetAmount() != uint64(pair.Claim.FeeAmount*100000000) {
+			t.Error("Fee Amount mismatch: expected", pair.Claim.FeeAmount, "got", helper.Claim.GetStream().GetFee().GetAmount())
+		}
+		if helper.Claim.GetStream().GetFee().GetCurrency().String() != pair.Claim.FeeCurrency {
+			t.Error("Fee Currency mismatch: expected", pair.Claim.FeeCurrency, "got", helper.Claim.GetStream().GetFee().GetCurrency())
+		}
+		hexaddress := base58.Encode(helper.Claim.GetStream().GetFee().GetAddress())
+		if hexaddress != pair.Claim.FeeAddress {
+			t.Error("Fee Address mismatch: expected", pair.Claim.FeeAddress, "got", hexaddress)
+		}
+		if helper.Claim.GetStream().GetSource().GetMediaType() != pair.Claim.ContentType {
+			t.Error("ContentType mismatch: expected", pair.Claim.ContentType, "got", helper.Claim.GetStream().GetSource().GetMediaType())
+		}
+		if helper.Claim.GetLanguages()[0].String() != pair.Claim.Language {
+			t.Error("Language mismatch: expected ", pair.Claim.Language, " got ", helper.Claim.GetLanguages()[0].String())
+		}
+		content := hex.EncodeToString(helper.Claim.GetStream().GetSource().GetSdHash())
+		if content != pair.Claim.LbrySDHash {
+			t.Error("Source mismatch: expected", pair.Claim.LbrySDHash, "got", content)
+		}
+	}
+}
+
+func TestMigrationFromV1YTSync(t *testing.T) {
+	claimHex := "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"
+	claim, err := DecodeClaimHex(claimHex, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+	}
+	assert.Assert(t, claim.Claim.GetTitle() == "Here are 5 Reasons I ❤️ Nextcloud | TLG")
+	assert.Assert(t, claim.Claim.GetDescription() == "Find out more about Nextcloud: https://nextcloud.com/\n\nYou can find me on these socials:\n * Forums: https://forum.heavyelement.io/\n * Podcast: https://offtopical.net\n * Patreon: https://patreon.com/thelinuxgamer\n * Merch: https://teespring.com/stores/official-linux-gamer\n * Twitch: https://twitch.tv/xondak\n * Twitter: https://twitter.com/thelinuxgamer\n\n...\nhttps://www.youtube.com/watch?v=FrTdBCOS_fc")
+	assert.Assert(t, claim.GetStream().GetLicense() == "Copyrighted (contact author)")
+	assert.Assert(t, claim.GetStream().GetAuthor() == "The Linux Gamer")
+	//?assert.Assert(t, claim.GetStream().GetLanguages()[0])
+	assert.Assert(t, claim.GetStream().GetSource().GetMediaType() == "video/mp4")
+	assert.Assert(t, claim.Claim.GetThumbnail().GetUrl() == "https://berk.ninja/thumbnails/FrTdBCOS_fc")
+	sdHashBytes, err := hex.DecodeString("040e8ac6e89c061f982528c23ad33829fd7146435bf7a4cc22f0bff70c4fe0b91fd36da9a375e3e1c171db825bf5d1f3")
+	if err != nil {
+		t.Error(err)
+	}
+	assert.Assert(t, bytes.Equal(claim.GetStream().GetSource().GetSdHash(), sdHashBytes))
+
+	channelHex := "08011002225e0801100322583056301006072a8648ce3d020106052b8104000a034200043878b1edd4a1373149909ef03f4339f6da9c2bd2214c040fd2e530463ffe66098eca14fc70b50ff3aefd106049a815f595ed5a13eda7419ad78d9ed7ae473f17"
+	channel, err := DecodeClaimHex(channelHex, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+	}
+	pubKeyBytes, err := hex.DecodeString("3056301006072a8648ce3d020106052b8104000a034200043878b1edd4a1373149909ef03f4339f6da9c2bd2214c040fd2e530463ffe66098eca14fc70b50ff3aefd106049a815f595ed5a13eda7419ad78d9ed7ae473f17")
+	if err != nil {
+		t.Error(err)
+	}
+	assert.Assert(t, bytes.Equal(pubKeyBytes, channel.Claim.GetChannel().GetPublicKey()))
+}
+
+func TestMigrationFromV1UnsignedWithFee(t *testing.T) {
+	claimHex := "080110011ad6010801127c080410011a08727067206d69646922046d6964692a08727067206d696469322e437265617469766520436f6d6d6f6e73204174747269627574696f6e20342e3020496e7465726e6174696f6e616c38004224080110011a19553f00bc139bbf40de425f94d51fffb34c1bea6d9171cd374c25000070414a0052005a001a54080110011a301f41eb0312aa7e8a5ce49349bc77d811da975833719d751523b19f123fc3d528d6a94e3446ccddb7b9329f27a9cad7e3221c6170706c69636174696f6e2f782d7a69702d636f6d70726573736564"
+	claim, err := DecodeClaimHex(claimHex, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+	}
+	assert.Assert(t, claim.Claim.GetTitle() == "rpg midi")
+	assert.Assert(t, claim.Claim.GetDescription() == "midi")
+	assert.Assert(t, claim.GetStream().GetLicense() == "Creative Commons Attribution 4.0 International")
+	assert.Assert(t, claim.GetStream().GetAuthor() == "rpg midi")
+	//assert.Assert(t, claim.GetStream().GetLanguage() == "en")
+	assert.Assert(t, claim.GetStream().GetSource().GetMediaType() == "application/x-zip-compressed")
+	sdHashBytes, err := hex.DecodeString("1f41eb0312aa7e8a5ce49349bc77d811da975833719d751523b19f123fc3d528d6a94e3446ccddb7b9329f27a9cad7e3")
+	if err != nil {
+		t.Error(err)
+	}
+	assert.Assert(t, bytes.Equal(claim.GetStream().GetSource().GetSdHash(), sdHashBytes))
+	feeAddressBytes, err := address.DecodeAddress("bJUQ9MxS9N6M29zsA5GTpVSDzsnPjMBBX9", "lbrycrd_main")
+	assert.Assert(t, bytes.Equal(claim.GetStream().GetFee().GetAddress(), feeAddressBytes[:]))
+	assert.Assert(t, claim.GetStream().GetFee().GetAmount() == 1500000000)
+	assert.Assert(t, claim.GetStream().GetFee().GetCurrency().String() == "LBC")
+
+}

schema/stake/pretty.go

@@ -0,0 +1,32 @@
+package stake
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"github.com/golang/protobuf/jsonpb"
+)
+
+func marshalToString(c *StakeHelper) (string, error) {
+	m_pb := &jsonpb.Marshaler{}
+	if c.IsSupport() {
+		return m_pb.MarshalToString(c.Support)
+	}
+	return m_pb.MarshalToString(c.Claim)
+}
+
+func (c *StakeHelper) RenderJSON() (string, error) {
+	r, err := marshalToString(c)
+	if err != nil {
+		fmt.Println("err")
+		return "", err
+	}
+	var dat map[string]interface{}
+	err = json.Unmarshal([]byte(r), &dat)
+	if err != nil {
+		return "", err
+	}
+	return r, nil
+}
+
+//TODO: encode byte arrays with b58 for addresses and b16 for source hashes instead of the default of b64

schema/stake/schema.go

@@ -0,0 +1,125 @@
+package stake
+
+import (
+	"encoding/json"
+
+	"github.com/lbryio/lbry.go/v2/extras/errors"
+)
+
+// V1Claim is the first version of claim metadata used by lbry.
+type V1Claim struct {
+	Version     string  `json:"ver,omitempty"`
+	Title       string  `json:"title"`        //Required
+	Description string  `json:"description"`  //Required
+	Author      string  `json:"author"`       //Required
+	Language    string  `json:"language"`     //Required
+	License     string  `json:"license"`      //Required
+	Sources     Sources `json:"sources"`      //Required
+	ContentType string  `json:"content-type"` //Required
+	Thumbnail   *string `json:"thumbnail,omitempty"`
+	Fee         *Fee    `json:"fee,omitempty"`
+	Contact     *int    `json:"contact,omitempty"`
+	PubKey      *string `json:"pubkey,omitempty"`
+}
+
+// V2Claim is the second version of claim metadata used by lbry.
+type V2Claim struct {
+	Version     string  `json:"ver"`          //Required
+	Title       string  `json:"title"`        //Required
+	Description string  `json:"description"`  //Required
+	Author      string  `json:"author"`       //Required
+	Language    string  `json:"language"`     //Required
+	License     string  `json:"license"`      //Required
+	Sources     Sources `json:"sources"`      //Required
+	ContentType string  `json:"content-type"` //Required
+	Thumbnail   *string `json:"thumbnail,omitempty"`
+	Fee         *Fee    `json:"fee,omitempty"`
+	Contact     *int    `json:"contact,omitempty"`
+	PubKey      *string `json:"pubkey,omitempty"`
+	LicenseURL  *string `json:"license_url,omitempty"`
+	NSFW        bool    `json:"nsfw"` //Required
+
+}
+
+// V3Claim is the third version of claim metadata used by lbry.
+type V3Claim struct {
+	Version     string  `json:"ver"`          //Required
+	Title       string  `json:"title"`        //Required
+	Description string  `json:"description"`  //Required
+	Author      string  `json:"author"`       //Required
+	Language    string  `json:"language"`     //Required
+	License     string  `json:"license"`      //Required
+	Sources     Sources `json:"sources"`      //Required
+	ContentType string  `json:"content_type"` //Required
+	Thumbnail   *string `json:"thumbnail,omitempty"`
+	Fee         *Fee    `json:"fee,omitempty"`
+	Contact     *int    `json:"contact,omitempty"`
+	PubKey      *string `json:"pubkey,omitempty"`
+	LicenseURL  *string `json:"license_url,omitempty"`
+	NSFW        bool    `json:"nsfw"` //Required
+	Sig         *string `json:"sig"`
+}
+
+// FeeInfo is the structure of fee information used by lbry.
+type FeeInfo struct {
+	Amount  float32 `json:"amount"`  //Required
+	Address string  `json:"address"` //Required
+}
+
+// Sources is the structure of Sources that can be used for a claim. Sources mainly include lbrysdhash but could be from
+// elsewhere in the future.
+type Sources struct {
+	LbrySDHash string `json:"lbry_sd_hash"` //Required
+	BTIH       string `json:"btih"`         //Required
+	URL        string `json:"url"`          //Required
+}
+
+// Fee is the structure used for different currencies allowed for claims.
+type Fee struct {
+	LBC *FeeInfo `json:"LBC,omitempty"`
+	BTC *FeeInfo `json:"BTC,omitempty"`
+	USD *FeeInfo `json:"USD,omitempty"`
+}
+
+// Unmarshal is an implementation to unmarshal the V1 claim from json. Main addition is to check the version.
+func (c *V1Claim) Unmarshal(value []byte) error {
+	err := json.Unmarshal(value, c)
+	if err != nil {
+		return err
+	} //Version can be blank for version 1
+	if c.Version != "" && c.Version != "0.0.1" {
+		err = errors.Base("Incorrect version, expected 0.0.1 found " + c.Version)
+		return err
+	}
+	//ToDo - restrict to required fields?
+
+	return nil
+}
+
+// Unmarshal is an implementation to unmarshal the V2 claim from json. Main addition is to check the version.
+func (c *V2Claim) Unmarshal(value []byte) error {
+	err := json.Unmarshal(value, c)
+	if err != nil {
+		return err
+	}
+	if c.Version != "0.0.2" {
+		err = errors.Base("Incorrect version, expected 0.0.2 found " + c.Version)
+		return err
+	}
+
+	return nil
+}
+
+// Unmarshal is an implementation to unmarshal the V3 claim from json. Main addition is to check the version.
+func (c *V3Claim) Unmarshal(value []byte) error {
+	err := json.Unmarshal(value, c)
+	if err != nil {
+		return err
+	}
+	if c.Version != "0.0.3" {
+		err = errors.Base("Incorrect version, expected 0.0.3 found " + c.Version)
+		return err
+	}
+
+	return nil
+}

schema/stake/serialization.go

@@ -0,0 +1,105 @@
+package stake
+
+import (
+	"encoding/hex"
+
+	"github.com/lbryio/lbry.go/v2/extras/errors"
+	legacy "github.com/lbryio/types/v1/go"
+	pb "github.com/lbryio/types/v2/go"
+
+	"github.com/golang/protobuf/proto"
+)
+
+func (c *StakeHelper) serialized() ([]byte, error) {
+	serialized := c.Claim.String() + c.Support.String()
+	if serialized == "" {
+		return nil, errors.Err("not initialized")
+	}
+
+	if c.LegacyClaim != nil {
+		return proto.Marshal(c.getLegacyProtobuf())
+	} else if c.IsSupport() {
+		return proto.Marshal(c.getSupportProtobuf())
+	}
+
+	return proto.Marshal(c.getClaimProtobuf())
+}
+
+func (c *StakeHelper) getClaimProtobuf() *pb.Claim {
+	claim := &pb.Claim{
+		Title:       c.Claim.GetTitle(),
+		Description: c.Claim.GetDescription(),
+		Thumbnail:   c.Claim.GetThumbnail(),
+		Tags:        c.Claim.GetTags(),
+		Languages:   c.Claim.GetLanguages(),
+		Locations:   c.Claim.GetLocations(),
+	}
+	if c.Claim.GetChannel() != nil {
+		claim.Type = &pb.Claim_Channel{Channel: c.Claim.GetChannel()}
+	} else if c.GetStream() != nil {
+		claim.Type = &pb.Claim_Stream{Stream: c.GetStream()}
+	} else if c.Claim.GetCollection() != nil {
+		claim.Type = &pb.Claim_Collection{Collection: c.Claim.GetCollection()}
+	} else if c.Claim.GetRepost() != nil {
+		claim.Type = &pb.Claim_Repost{Repost: c.Claim.GetRepost()}
+	}
+
+	return claim
+}
+
+func (c *StakeHelper) getSupportProtobuf() *pb.Support {
+	return &pb.Support{
+		Emoji:                c.Support.GetEmoji(),
+		XXX_NoUnkeyedLiteral: struct{}{},
+		XXX_unrecognized:     nil,
+		XXX_sizecache:        0,
+	}
+}
+
+func (c *StakeHelper) getLegacyProtobuf() *legacy.Claim {
+	v := c.LegacyClaim.GetVersion()
+	t := c.LegacyClaim.GetClaimType()
+	return &legacy.Claim{
+		Version:            &v,
+		ClaimType:          &t,
+		Stream:             c.LegacyClaim.GetStream(),
+		Certificate:        c.LegacyClaim.GetCertificate(),
+		PublisherSignature: c.LegacyClaim.GetPublisherSignature()}
+}
+
+func (c *StakeHelper) serializedHexString() (string, error) {
+	serialized, err := c.serialized()
+	if err != nil {
+		return "", err
+	}
+	serialized_hex := hex.EncodeToString(serialized)
+	return serialized_hex, nil
+}
+
+func (c *StakeHelper) serializedNoSignature() ([]byte, error) {
+	if c.Claim.String() == "" && c.Support.String() == "" {
+		return nil, errors.Err("not initialized")
+	}
+	if c.Signature == nil {
+		serialized, err := c.serialized()
+		if err != nil {
+			return nil, err
+		}
+		return serialized, nil
+	} else {
+		if c.LegacyClaim != nil {
+			clone := &legacy.Claim{}
+			proto.Merge(clone, c.getLegacyProtobuf())
+			proto.ClearAllExtensions(clone.PublisherSignature)
+			clone.PublisherSignature = nil
+			return proto.Marshal(clone)
+		} else if c.IsSupport() {
+			clone := &pb.Support{}
+			proto.Merge(clone, c.getSupportProtobuf())
+			return proto.Marshal(clone)
+		}
+		clone := &pb.Claim{}
+		proto.Merge(clone, c.getClaimProtobuf())
+		return proto.Marshal(clone)
+	}
+}

schema/stake/sign.go

@@ -0,0 +1,99 @@
+package stake
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+
+	"github.com/lbryio/lbry.go/v2/extras/errors"
+	"github.com/lbryio/lbry.go/v2/schema/address"
+	"github.com/lbryio/lbry.go/v2/schema/keys"
+
+	"github.com/btcsuite/btcd/btcec"
+)
+
+func Sign(privKey btcec.PrivateKey, channel StakeHelper, claim StakeHelper, k string) (*keys.Signature, error) {
+	if channel.Claim.GetChannel() == nil {
+		return nil, errors.Err("claim as channel is not of type channel")
+	}
+	if claim.LegacyClaim != nil {
+		return claim.signV1(privKey, channel, k)
+	}
+
+	return claim.sign(privKey, channel, k)
+}
+
+func (c *StakeHelper) sign(privKey btcec.PrivateKey, channel StakeHelper, firstInputTxID string) (*keys.Signature, error) {
+
+	txidBytes, err := hex.DecodeString(firstInputTxID)
+	if err != nil {
+		return nil, errors.Err(err)
+	}
+
+	metadataBytes, err := c.serialized()
+	if err != nil {
+		return nil, errors.Err(err)
+	}
+
+	var digest []byte
+	digest = append(digest, txidBytes...)
+	digest = append(digest, c.ClaimID...)
+	digest = append(digest, metadataBytes...)
+	hash := sha256.Sum256(digest)
+	hashBytes := make([]byte, len(hash))
+	for i, b := range hash {
+		hashBytes[i] = b
+	}
+
+	sig, err := privKey.Sign(hashBytes)
+	if err != nil {
+		return nil, errors.Err(err)
+	}
+
+	return &keys.Signature{*sig}, nil
+
+}
+
+func (c *StakeHelper) signV1(privKey btcec.PrivateKey, channel StakeHelper, claimAddress string) (*keys.Signature, error) {
+	metadataBytes, err := c.serializedNoSignature()
+	if err != nil {
+		return nil, errors.Err(err)
+	}
+
+	addressBytes, err := address.DecodeAddress(claimAddress, "lbrycrd_main")
+	if err != nil {
+		return nil, errors.Prefix("V1 signing requires claim address and the decode failed with: ", err)
+	}
+
+	var digest []byte
+
+	address := make([]byte, len(addressBytes))
+	for i, b := range addressBytes {
+		address[i] = b
+	}
+
+	digest = append(digest, address...)
+	digest = append(digest, metadataBytes...)
+	digest = append(digest, channel.ClaimID...)
+
+	hash := sha256.Sum256(digest)
+	hashBytes := make([]byte, len(hash))
+	for i, b := range hash {
+		hashBytes[i] = b
+	}
+
+	sig, err := privKey.Sign(hashBytes)
+	if err != nil {
+		return nil, errors.Err(err)
+	}
+
+	return &keys.Signature{Signature: *sig}, nil
+}
+
+// rev reverses a byte slice. useful for switching endian-ness
+func reverseBytes(b []byte) []byte {
+	r := make([]byte, len(b))
+	for left, right := 0, len(b)-1; left < right; left, right = left+1, right-1 {
+		r[left], r[right] = b[right], b[left]
+	}
+	return r
+}

schema/stake/sign_test.go

@@ -0,0 +1,196 @@
+package stake
+
+import (
+	"encoding/hex"
+	"testing"
+
+	pb "github.com/lbryio/types/v2/go"
+
+	"github.com/lbryio/lbry.go/v2/schema/keys"
+
+	"github.com/btcsuite/btcd/btcec"
+	"gotest.tools/assert"
+)
+
+func TestSign(t *testing.T) {
+	privateKey, err := btcec.NewPrivateKey(btcec.S256())
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	channel := &StakeHelper{newChannelClaim(), nil, nil, nil, NoSig, nil, nil}
+	pubkeyBytes, err := keys.PublicKeyToDER(privateKey.PubKey())
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	channel.Claim.GetChannel().PublicKey = pubkeyBytes
+	claimID := "cf3f7c898af87cc69b06a6ac7899efb9a4878fdb"                      //Fake
+	txid := "4c1df9e022e396859175f9bfa69b38e444db10fb53355fa99a0989a83bcdb82f" //Fake
+	claimIDHexBytes, err := hex.DecodeString(claimID)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	claim := &StakeHelper{newStreamClaim(), nil, nil, reverseBytes(claimIDHexBytes), WithSig, nil, nil}
+	claim.Claim.Title = "Test title"
+	claim.Claim.Description = "Test description"
+	sig, err := Sign(*privateKey, *channel, *claim, txid)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	signatureBytes, err := sig.LBRYSDKEncode()
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	claim.Signature = signatureBytes
+
+	rawChannel, err := channel.CompileValue()
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	rawClaim, err := claim.CompileValue()
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	channel, err = DecodeClaimBytes(rawChannel, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	claim, err = DecodeClaimBytes(rawClaim, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	valid, err := claim.ValidateClaimSignature(channel, txid, claimID, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	assert.Assert(t, valid, "could not verify signature")
+
+}
+
+func TestSignSupportWithChannel(t *testing.T) {
+	cert_claim_hex := "08011002225e0801100322583056301006072a8648ce3d020106052b8104000a03420004d015365a40f3e5c03c87227168e5851f44659837bcf6a3398ae633bc37d04ee19baeb26dc888003bd728146dbea39f5344bf8c52cedaf1a3a1623a0166f4a367"
+	channel, err := DecodeClaimHex(cert_claim_hex, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+	}
+	privateKey, err := btcec.NewPrivateKey(btcec.S256())
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	pubkeyBytes, err := keys.PublicKeyToDER(privateKey.PubKey())
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	channel.Claim.GetChannel().PublicKey = pubkeyBytes
+
+	claimID := "251305ca93d4dbedb50dceb282ebcb7b07b7ac64"
+	txid := "4c1df9e022e396859175f9bfa69b38e444db10fb53355fa99a0989a83bcdb82f" //Fake
+	claimIDHexBytes, err := hex.DecodeString(claimID)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	support := &StakeHelper{nil, &pb.Support{}, nil, reverseBytes(claimIDHexBytes), WithSig, nil, nil}
+	sig, err := Sign(*privateKey, *channel, *support, txid)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	signatureBytes, err := sig.LBRYSDKEncode()
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	support.Signature = signatureBytes
+	compiledSupport, err := support.CompileValue()
+	if err != nil {
+		t.Error(err)
+	}
+	support, err = DecodeSupportBytes(compiledSupport, "lbrycrd_main")
+
+	valid, err := support.ValidateClaimSignature(channel, txid, claimID, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	assert.Assert(t, valid, "could not verify signature")
+}
+
+func TestSignWithV1Channel(t *testing.T) {
+	cert_claim_hex := "08011002225e0801100322583056301006072a8648ce3d020106052b8104000a03420004d015365a40f3e5c03c87227168e5851f44659837bcf6a3398ae633bc37d04ee19baeb26dc888003bd728146dbea39f5344bf8c52cedaf1a3a1623a0166f4a367"
+	channel, err := DecodeClaimHex(cert_claim_hex, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+	}
+	privateKey, err := btcec.NewPrivateKey(btcec.S256())
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	pubkeyBytes, err := keys.PublicKeyToDER(privateKey.PubKey())
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	channel.Claim.GetChannel().PublicKey = pubkeyBytes
+
+	claimID := "251305ca93d4dbedb50dceb282ebcb7b07b7ac64"
+	txid := "4c1df9e022e396859175f9bfa69b38e444db10fb53355fa99a0989a83bcdb82f" //Fake
+	claimIDHexBytes, err := hex.DecodeString(claimID)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	claim := &StakeHelper{newStreamClaim(), nil, nil, reverseBytes(claimIDHexBytes), WithSig, nil, nil}
+	claim.Claim.Title = "Test title"
+	claim.Claim.Description = "Test description"
+	sig, err := Sign(*privateKey, *channel, *claim, txid)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	signatureBytes, err := sig.LBRYSDKEncode()
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	claim.Signature = signatureBytes
+	compiledClaim, err := claim.CompileValue()
+	if err != nil {
+		t.Error(err)
+	}
+	claim, err = DecodeClaimBytes(compiledClaim, "lbrycrd_main")
+
+	valid, err := claim.ValidateClaimSignature(channel, txid, claimID, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	assert.Assert(t, valid, "could not verify signature")
+
+}

schema/stake/stake.go

@@ -0,0 +1,317 @@
+package stake
+
+import (
+	"encoding/hex"
+	"strconv"
+
+	"github.com/lbryio/lbry.go/v2/extras/errors"
+	"github.com/lbryio/lbry.go/v2/schema/address"
+	"github.com/lbryio/lbry.go/v2/schema/keys"
+	legacy_pb "github.com/lbryio/types/v1/go"
+	pb "github.com/lbryio/types/v2/go"
+
+	"github.com/btcsuite/btcd/btcec"
+	"github.com/golang/protobuf/proto"
+)
+
+type version byte
+
+func (v version) byte() byte {
+	return byte(v)
+}
+
+const (
+	NoSig = version(byte(0))
+	//Signature using ECDSA SECP256k1 key and SHA-256 hash.
+	WithSig = version(byte(1))
+	UNKNOWN = version(byte(2))
+)
+
+type StakeHelper struct {
+	Claim       *pb.Claim
+	Support     *pb.Support
+	LegacyClaim *legacy_pb.Claim
+	ClaimID     []byte
+	Version     version
+	Signature   []byte
+	Payload     []byte
+}
+
+const migrationErrorMessage = "migration from v1 to v2 protobuf failed with: "
+
+func (c *StakeHelper) ValidateAddresses(blockchainName string) error {
+	if c.Claim != nil { // V2
+		// check the validity of a fee address
+		if c.Claim.GetStream() != nil {
+			fee := c.GetStream().GetFee()
+			if fee != nil {
+				return validateAddress(fee.GetAddress(), blockchainName)
+			} else {
+				return nil
+			}
+		} else if c.Claim.GetChannel() != nil {
+			return nil
+		}
+	}
+
+	return errors.Err("claim helper created with migrated v2 protobuf claim 'invalid state'")
+}
+
+func validateAddress(tmp_addr []byte, blockchainName string) error {
+	if len(tmp_addr) != 25 {
+		return errors.Err("invalid address length: " + strconv.FormatInt(int64(len(tmp_addr)), 10) + "!")
+	}
+	addr := [25]byte{}
+	for i := range addr {
+		addr[i] = tmp_addr[i]
+	}
+	_, err := address.EncodeAddress(addr, blockchainName)
+	if err != nil {
+		return errors.Err(err)
+	}
+
+	return nil
+}
+
+func getVersionFromByte(versionByte byte) version {
+	if versionByte == byte(0) {
+		return NoSig
+	} else if versionByte == byte(1) {
+		return WithSig
+	}
+
+	return UNKNOWN
+}
+
+func (c *StakeHelper) ValidateCertificate() error {
+	if !c.IsClaim() || c.Claim.GetChannel() == nil {
+		return nil
+	}
+	_, err := c.GetPublicKey()
+	if err != nil {
+		return errors.Err(err)
+	}
+	return nil
+}
+
+func (c *StakeHelper) IsClaim() bool {
+	return c.Claim != nil && c.Claim.String() != ""
+}
+
+func (c *StakeHelper) IsSupport() bool {
+	return c.Support != nil
+}
+
+func (c *StakeHelper) LoadFromBytes(raw_claim []byte, blockchainName string) error {
+	return c.loadFromBytes(raw_claim, false, blockchainName)
+}
+
+func (c *StakeHelper) LoadSupportFromBytes(raw_claim []byte, blockchainName string) error {
+	return c.loadFromBytes(raw_claim, true, blockchainName)
+}
+
+func (c *StakeHelper) loadFromBytes(raw_claim []byte, isSupport bool, blockchainName string) error {
+	if c.Claim.String() != "" && !isSupport {
+		return errors.Err("already initialized")
+	}
+	if len(raw_claim) < 1 {
+		return errors.Err("there is nothing to decode")
+	}
+
+	var claim_pb *pb.Claim
+	var legacy_claim_pb *legacy_pb.Claim
+	var support_pb *pb.Support
+
+	version := getVersionFromByte(raw_claim[0]) //First byte = version
+	pbPayload := raw_claim[1:]
+	var claimID []byte
+	var signature []byte
+	if version == WithSig {
+		if len(raw_claim) < 85 {
+			return errors.Err("signature version indicated by 1st byte but not enough bytes for valid format")
+		}
+		claimID = raw_claim[1:21]    // channel claimid = next 20 bytes
+		signature = raw_claim[21:85] // signature = next 64 bytes
+		pbPayload = raw_claim[85:]   // protobuf payload = remaining bytes
+	}
+
+	var err error
+	if !isSupport {
+		claim_pb = &pb.Claim{}
+		err = proto.Unmarshal(pbPayload, claim_pb)
+	} else {
+		support := &pb.Support{}
+		err = proto.Unmarshal(pbPayload, support)
+		if err == nil {
+			support_pb = support
+		}
+	}
+	if err != nil {
+		legacy_claim_pb = &legacy_pb.Claim{}
+		legacyErr := proto.Unmarshal(raw_claim, legacy_claim_pb)
+		if legacyErr == nil {
+			claim_pb, err = migrateV1PBClaim(*legacy_claim_pb)
+			if err != nil {
+				return errors.Prefix(migrationErrorMessage, err)
+			}
+			if legacy_claim_pb.GetPublisherSignature() != nil {
+				version = WithSig
+				claimID = legacy_claim_pb.GetPublisherSignature().GetCertificateId()
+				signature = legacy_claim_pb.GetPublisherSignature().GetSignature()
+			}
+			if legacy_claim_pb.GetCertificate() != nil {
+				version = NoSig
+			}
+		} else {
+			return err
+		}
+	}
+
+	*c = StakeHelper{
+		Claim:       claim_pb,
+		Support:     support_pb,
+		LegacyClaim: legacy_claim_pb,
+		ClaimID:     claimID,
+		Version:     version,
+		Signature:   signature,
+		Payload:     pbPayload,
+	}
+
+	// Commenting out because of a bug in SDK release allowing empty addresses.
+	//err = c.ValidateAddresses(blockchainName)
+	//if err != nil {
+	//	return err
+	//}
+
+	err = c.ValidateCertificate()
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (c *StakeHelper) LoadFromHexString(claim_hex string, blockchainName string) error {
+	buf, err := hex.DecodeString(claim_hex)
+	if err != nil {
+		return err
+	}
+	return c.LoadFromBytes(buf, blockchainName)
+}
+
+func (c *StakeHelper) LoadSupportFromHexString(claim_hex string, blockchainName string) error {
+	buf, err := hex.DecodeString(claim_hex)
+	if err != nil {
+		return err
+	}
+	return c.LoadSupportFromBytes(buf, blockchainName)
+}
+
+func DecodeClaimProtoBytes(serialized []byte, blockchainName string) (*StakeHelper, error) {
+	claim := &StakeHelper{&pb.Claim{}, &pb.Support{}, nil, nil, NoSig, nil, nil}
+	err := claim.LoadFromBytes(serialized, blockchainName)
+	if err != nil {
+		return nil, err
+	}
+	return claim, nil
+}
+
+func DecodeSupportProtoBytes(serialized []byte, blockchainName string) (*StakeHelper, error) {
+	claim := &StakeHelper{nil, &pb.Support{}, nil, nil, NoSig, nil, nil}
+	err := claim.LoadSupportFromBytes(serialized, blockchainName)
+	if err != nil {
+		return nil, err
+	}
+	return claim, nil
+}
+
+func DecodeClaimHex(serialized string, blockchainName string) (*StakeHelper, error) {
+	claim_bytes, err := hex.DecodeString(serialized)
+	if err != nil {
+		return nil, errors.Err(err)
+	}
+	return DecodeClaimBytes(claim_bytes, blockchainName)
+}
+
+// DecodeClaimBytes take a byte array and tries to decode it to a protobuf claim or migrate it from either json v1,2,3 or pb v1
+func DecodeClaimBytes(serialized []byte, blockchainName string) (*StakeHelper, error) {
+	helper, err := DecodeClaimProtoBytes(serialized, blockchainName)
+	if err == nil {
+		return helper, nil
+	}
+	helper = &StakeHelper{}
+	//If protobuf fails, try json versions before returning an error.
+	v1Claim := new(V1Claim)
+	err = v1Claim.Unmarshal(serialized)
+	if err != nil {
+		v2Claim := new(V2Claim)
+		err := v2Claim.Unmarshal(serialized)
+		if err != nil {
+			v3Claim := new(V3Claim)
+			err := v3Claim.Unmarshal(serialized)
+			if err != nil {
+				return nil, errors.Prefix("Claim value has no matching version", err)
+			}
+			helper.Claim, err = migrateV3Claim(*v3Claim)
+			if err != nil {
+				return nil, errors.Prefix("V3 Metadata Migration Error", err)
+			}
+			return helper, nil
+		}
+		helper.Claim, err = migrateV2Claim(*v2Claim)
+		if err != nil {
+			return nil, errors.Prefix("V2 Metadata Migration Error ", err)
+		}
+		return helper, nil
+	}
+
+	helper.Claim, err = migrateV1Claim(*v1Claim)
+	if err != nil {
+		return nil, errors.Prefix("V1 Metadata Migration Error ", err)
+	}
+	return helper, nil
+}
+
+// DecodeSupportBytes take a byte array and tries to decode it to a protobuf support
+func DecodeSupportBytes(serialized []byte, blockchainName string) (*StakeHelper, error) {
+	helper, err := DecodeSupportProtoBytes(serialized, blockchainName)
+	if err != nil {
+		return nil, errors.Err(err)
+	}
+	return helper, nil
+}
+
+func (c *StakeHelper) GetStream() *pb.Stream {
+	if c != nil {
+		return c.Claim.GetStream()
+	}
+	return nil
+}
+
+func (c *StakeHelper) CompileValue() ([]byte, error) {
+	payload, err := c.serialized()
+	if err != nil {
+		return nil, err
+	}
+	var value []byte
+	value = append(value, c.Version.byte())
+	if c.Version == WithSig {
+		value = append(value, c.ClaimID...)
+		value = append(value, c.Signature...)
+	}
+	value = append(value, payload...)
+
+	return value, nil
+}
+
+func (c *StakeHelper) GetPublicKey() (*btcec.PublicKey, error) {
+	if c.IsClaim() {
+		if c.Claim.GetChannel() == nil {
+			return nil, errors.Err("claim is not of type channel, so there is no public key to get")
+		}
+
+	} else if c.IsSupport() {
+		return nil, errors.Err("stake is a support and does not come with a public key to get")
+	}
+	return keys.GetPublicKeyFromBytes(c.Claim.GetChannel().PublicKey)
+}

schema/stake/stake_test.go

@@ -0,0 +1,33 @@
+package stake
+
+import "testing"
+
+func TestClaimHelper(t *testing.T) {
+	for _, rawClaim := range raw_claims {
+		helper, err := DecodeClaimHex(rawClaim, "lbrycrd_main")
+		if err != nil {
+			t.Error(err)
+		}
+		_, err = helper.RenderJSON()
+		if err != nil {
+			t.Error(err)
+		}
+
+		_, err = helper.serialized()
+		if err != nil {
+			t.Error(err)
+		}
+		_, err = helper.serializedHexString()
+		if err != nil {
+			t.Error(err)
+		}
+		_, err = helper.serializedNoSignature()
+		if err != nil {
+			t.Error(err)
+		}
+		err = helper.ValidateAddresses("lbrycrd_main")
+		if err != nil {
+			t.Error(err)
+		}
+	}
+}

schema/stake/validator.go

@@ -0,0 +1,120 @@
+package stake
+
+import (
+	"crypto/ecdsa"
+	"crypto/sha256"
+	"encoding/binary"
+	"encoding/hex"
+	"math/big"
+
+	"github.com/lbryio/lbry.go/v2/extras/errors"
+	"github.com/lbryio/lbry.go/v2/schema/address"
+)
+
+const SECP256k1 = "SECP256k1"
+
+//const NIST256p = "NIST256p"
+//const NIST384p = "NIST384p"
+
+func getClaimSignatureDigest(bytes ...[]byte) [32]byte {
+
+	var combined []byte
+	for _, b := range bytes {
+		combined = append(combined, b...)
+	}
+	digest := sha256.Sum256(combined)
+	return [32]byte(digest)
+}
+
+func (c *StakeHelper) VerifyDigest(certificate *StakeHelper, signature [64]byte, digest [32]byte) bool {
+	if certificate == nil {
+		return false
+	}
+
+	R := &big.Int{}
+	S := &big.Int{}
+	R.SetBytes(signature[0:32])
+	S.SetBytes(signature[32:64])
+	pk, err := certificate.GetPublicKey()
+	if err != nil {
+		return false
+	}
+	return ecdsa.Verify(pk.ToECDSA(), digest[:], R, S)
+}
+
+func (c *StakeHelper) ValidateClaimSignature(certificate *StakeHelper, k string, certificateId string, blockchainName string) (bool, error) {
+	if c.LegacyClaim != nil {
+		return c.validateV1ClaimSignature(certificate, k, certificateId, blockchainName)
+	}
+
+	return c.validateClaimSignature(certificate, k, certificateId, blockchainName)
+}
+
+func (c *StakeHelper) validateClaimSignature(certificate *StakeHelper, firstInputTxHash, certificateId string, blockchainName string) (bool, error) {
+	certificateIdSlice, err := hex.DecodeString(certificateId)
+	if err != nil {
+		return false, errors.Err(err)
+	}
+	certificateIdSlice = reverseBytes(certificateIdSlice)
+	firstInputTxIDBytes, err := hex.DecodeString(firstInputTxHash)
+	if err != nil {
+		return false, errors.Err(err)
+	}
+
+	signature := c.Signature
+	if signature == nil {
+		return false, errors.Err("claim does not have a signature")
+	}
+	signatureBytes := [64]byte{}
+	for i, b := range signature {
+		signatureBytes[i] = b
+	}
+
+	claimDigest := getClaimSignatureDigest(firstInputTxIDBytes, certificateIdSlice, c.Payload)
+	return c.VerifyDigest(certificate, signatureBytes, claimDigest), nil
+}
+
+func (c *StakeHelper) validateV1ClaimSignature(certificate *StakeHelper, claimAddy string, certificateId string, blockchainName string) (bool, error) {
+	addressBytes, err := address.DecodeAddress(claimAddy, blockchainName)
+	if err != nil {
+		return false, err
+	}
+	//For V1 claim_id was incorrectly stored for claim signing.
+	// So the bytes are not reversed like they are supposed to be (Endianess)
+	certificateIdSlice, err := hex.DecodeString(certificateId)
+	if err != nil {
+		return false, err
+	}
+
+	signature := c.Signature
+	if signature == nil {
+		return false, errors.Err("claim does not have a signature")
+	}
+	signatureBytes := [64]byte{}
+	for i := range signatureBytes {
+		signatureBytes[i] = signature[i]
+	}
+
+	claimAddress, err := address.ValidateAddress(addressBytes, blockchainName)
+	if err != nil {
+		return false, errors.Err("invalid address")
+	}
+
+	serializedNoSig, err := c.serializedNoSignature()
+	if err != nil {
+		return false, errors.Err("serialization error")
+	}
+
+	claimDigest := getClaimSignatureDigest(claimAddress[:], serializedNoSig, certificateIdSlice)
+	return c.VerifyDigest(certificate, signatureBytes, claimDigest), nil
+}
+
+func GetOutpointHash(txid string, vout uint32) (string, error) {
+	txidBytes, err := hex.DecodeString(txid)
+	if err != nil {
+		return "", errors.Err(err)
+	}
+	var voutBytes = make([]byte, 4)
+	binary.LittleEndian.PutUint32(voutBytes, vout)
+	return hex.EncodeToString(append(reverseBytes(txidBytes), voutBytes...)), nil
+}

schema/stake/validator_test.go

@@ -0,0 +1,94 @@
+package stake
+
+import (
+	"testing"
+
+	"gotest.tools/assert"
+)
+
+func TestV1ValidateClaimSignature(t *testing.T) {
+	cert_claim_hex := "08011002225e0801100322583056301006072a8648ce3d020106052b8104000a03420004d015365a40f3e5c03c87227168e5851f44659837bcf6a3398ae633bc37d04ee19baeb26dc888003bd728146dbea39f5344bf8c52cedaf1a3a1623a0166f4a367"
+	signed_claim_hex := "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"
+
+	signed_claim, err := DecodeClaimHex(signed_claim_hex, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+	}
+	cert_claim, err := DecodeClaimHex(cert_claim_hex, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+	}
+
+	claim_addr := "bSkUov7HMWpYBiXackDwRnR5ishhGHvtJt"
+	cert_id := "251305ca93d4dbedb50dceb282ebcb7b07b7ac65"
+
+	result, err := signed_claim.ValidateClaimSignature(cert_claim, claim_addr, cert_id, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+	}
+	if result != true {
+		t.Error("failed to validate signature:", result)
+	}
+}
+
+func TestV1FailToValidateClaimSignature(t *testing.T) {
+	cert_claim_hex := "08011002225e0801100322583056301006072a8648ce3d020106052b8104000a03420004d015365a40f3e5c03c87227168e5851f44659837bcf6a3398ae633bc37d04ee19baeb26dc888003bd728146dbea39f5344bf8c52cedaf1a3a1623a0166f4a367"
+	signed_claim_hex := "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"
+
+	signed_claim, err := DecodeClaimHex(signed_claim_hex, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+	}
+	cert_claim, err := DecodeClaimHex(cert_claim_hex, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+	}
+
+	claim_addr := "bSkUov7HMWpYBiXackDwRnR5ishhGHvtJt"
+	cert_id := "251305ca93d4dbedb50dceb282ebcb7b07b7ac64"
+
+	result, err := signed_claim.ValidateClaimSignature(cert_claim, claim_addr, cert_id, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+	}
+	if result != false {
+		t.Error("failed to validate signature:", result)
+	}
+}
+
+func TestV2ValidateClaimSignature(t *testing.T) {
+	cert_claim_hex := "00125a0a583056301006072a8648ce3d020106052b8104000a034200045a0343c155302280da01ae0001b7295241eb03c42a837acf92ccb9680892f7db50fd1d3c14b28bb594e304f05fc4ae7c1f222a85d1d1a3461b3cfb9906f66cb5"
+	signed_claim_hex := "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"
+
+	signed_claim, err := DecodeClaimHex(signed_claim_hex, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+	}
+	cert_claim, err := DecodeClaimHex(cert_claim_hex, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+	}
+
+	firstInputTxHash, err := GetOutpointHash("becb96a4a2e66bd24f083772fe9da904654ea9b5f07cc5bfbee233355911ddb1", uint32(0))
+	if err != nil {
+		t.Error(err)
+	}
+	cert_id := "e67323a67a42307410f9679bf7fb344a428eb75c"
+
+	result, err := signed_claim.ValidateClaimSignature(cert_claim, firstInputTxHash, cert_id, "lbrycrd_main")
+	if err != nil {
+		t.Error(err)
+	}
+	if result != true {
+		t.Error("failed to validate signature:", result)
+	}
+
+}
+
+func TestGetOutpointHash(t *testing.T) {
+	hash, err := GetOutpointHash("dc3dcf2f94d3c91e454ac2474802e20f26b30705372dda43890c811d918aef64", 1)
+	if err != nil {
+		t.Error(err)
+	}
+	assert.Assert(t, hash == "64ef8a911d810c8943da2d370507b3260fe2024847c24a451ec9d3942fcf3ddc01000000", uint(1))
+}

schema/test.sh

@@ -0,0 +1 @@
+go test ./... -v

scripts/release.sh

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
 
-GO111MODULE=off go get github.com/caarlos0/svu
+go install github.com/caarlos0/svu@latest
 git tag `svu "$1"`
 git push --tags

stream/blob.go

@@ -35,7 +35,7 @@ func (b Blob) Hash() []byte {
 	return hashBytes[:]
 }
 
-// HashHex returns th blob hash as a hex string
+// HashHex returns the blob hash as a hex string
 func (b Blob) HashHex() string {
 	return hex.EncodeToString(b.Hash())
 }

stream/sdBlob.go

@@ -8,6 +8,7 @@ import (
 	"encoding/hex"
 	"encoding/json"
 	"strconv"
+	"strings"
 )
 
 const streamTypeLBRYFile = "lbryfile"
@@ -44,10 +45,39 @@ type SDBlob struct {
 	StreamHash        []byte     `json:"-"`
 }
 
+// Hash returns a hash of the SD blob data
+func (s SDBlob) Hash() []byte {
+	hashBytes := sha512.Sum384(s.ToBlob())
+	return hashBytes[:]
+}
+
+// HashHex returns the SD blob hash as a hex string
+func (s SDBlob) HashHex() string {
+	return hex.EncodeToString(s.Hash())
+}
+
+// ToJson returns the SD blob hash as JSON
+func (s SDBlob) ToJson() string {
+	j, err := json.MarshalIndent(s, "", "  ")
+	if err != nil {
+		panic(err)
+	}
+	return string(j)
+}
+
 // ToBlob converts the SDBlob to a normal data Blob
-func (s SDBlob) ToBlob() (Blob, error) {
-	b, err := json.Marshal(s)
-	return Blob(b), err
+func (s SDBlob) ToBlob() Blob {
+	jsonSD, err := json.Marshal(s)
+	if err != nil {
+		panic(err)
+	}
+
+	// COMPATIBILITY HACK to make json output match python's json. this can be
+	// removed when we implement canonical JSON encoding
+	jsonSD = []byte(strings.Replace(string(jsonSD), ",", ", ", -1))
+	jsonSD = []byte(strings.Replace(string(jsonSD), ":", ": ", -1))
+
+	return jsonSD
 }
 
 // FromBlob unmarshals a data Blob that should contain SDBlob data
@@ -55,30 +85,6 @@ func (s *SDBlob) FromBlob(b Blob) error {
 	return json.Unmarshal(b, s)
 }
 
-func newSdBlob(blobs []Blob, key []byte, ivs [][]byte, streamName, suggestedFilename string) *SDBlob {
-	if len(ivs) != len(blobs)+1 { // +1 for terminating 0-length blob
-		panic("wrong number of IVs provided")
-	}
-
-	sd := &SDBlob{
-		StreamType:        streamTypeLBRYFile,
-		StreamName:        streamName,
-		SuggestedFileName: suggestedFilename,
-		Key:               key,
-	}
-
-	for i, b := range blobs {
-		sd.addBlob(b, ivs[i])
-	}
-
-	// terminating blob
-	sd.addBlob(Blob{}, ivs[len(ivs)-1])
-
-	sd.updateStreamHash()
-
-	return sd
-}
-
 // addBlob adds the blob's info to stream
 func (s *SDBlob) addBlob(b Blob, iv []byte) {
 	if len(iv) == 0 {

stream/stream.go

@@ -2,8 +2,10 @@ package stream
 
 import (
 	"bytes"
+	"crypto/sha512"
+	"hash"
+	"io"
 	"math"
-	"strings"
 
 	"github.com/lbryio/lbry.go/v2/extras/errors"
 )
@@ -13,66 +15,22 @@ type Stream []Blob
 // -1 to leave room for padding, since there must be at least one byte of pkcs7 padding
 const maxBlobDataSize = MaxBlobSize - 1
 
-// New creates a new Stream from a byte slice
-func New(data []byte) (Stream, error) {
-	key := randIV()
-	ivs := make([][]byte, numContentBlobs(data)+1) // +1 for terminating 0-length blob
-	for i := range ivs {
-		ivs[i] = randIV()
-	}
-
-	return makeStream(data, key, ivs, "", "")
-}
-
-// Reconstruct creates a stream from the given data using predetermined IVs and key from the SD blob
-// NOTE: this will assume that all blobs except the last one are at max length. in theory this is not
-// required, but in practice this is always true. if this is false, streams may not match exactly
-func Reconstruct(data []byte, sdBlob SDBlob) (Stream, error) {
-	ivs := make([][]byte, len(sdBlob.BlobInfos))
-	for i := range ivs {
-		ivs[i] = sdBlob.BlobInfos[i].IV
-	}
-
-	return makeStream(data, sdBlob.Key, ivs, sdBlob.StreamName, sdBlob.SuggestedFileName)
-}
-
-func makeStream(data, key []byte, ivs [][]byte, streamName, suggestedFilename string) (Stream, error) {
-	var err error
-
-	numBlobs := numContentBlobs(data)
-	if len(ivs) != numBlobs+1 { // +1 for terminating 0-length blob
-		return nil, errors.Err("incorrect number of IVs provided")
-	}
-
-	s := make(Stream, numBlobs+1) // +1 for sd blob
-	for i := 0; i < numBlobs; i++ {
-		start := i * maxBlobDataSize
-		end := start + maxBlobDataSize
-		if end > len(data) {
-			end = len(data)
-		}
-		s[i+1], err = NewBlob(data[start:end], key, ivs[i])
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	sd := newSdBlob(s[1:], key, ivs, streamName, suggestedFilename)
-	jsonSD, err := sd.ToBlob()
-	if err != nil {
-		return nil, err
-	}
-
-	// COMPATIBILITY HACK to make json output match python's json. this can be
-	// removed when we implement canonical JSON encoding
-	jsonSD = []byte(strings.Replace(string(jsonSD), ",", ", ", -1))
-	jsonSD = []byte(strings.Replace(string(jsonSD), ":", ": ", -1))
-
-	s[0] = jsonSD
-	return s, nil
+// New creates a new Stream from a stream of bytes.
+func New(src io.Reader) (Stream, error) {
+	return NewEncoder(src).Stream()
 }
 
+// Data returns the file data that a stream encapsulates.
+//
+// Deprecated: use Decode() instead. It's a more accurate name. Data() will be removed in the future.
 func (s Stream) Data() ([]byte, error) {
+	return s.Decode()
+}
+
+// Decode returns the file data that a stream encapsulates
+//
+// TODO: this should use io.Writer instead of returning bytes
+func (s Stream) Decode() ([]byte, error) {
 	if len(s) < 2 {
 		return nil, errors.Err("stream must be at least 2 blobs long") // sd blob and content blob
 	}
@@ -124,7 +82,161 @@ func (s Stream) Data() ([]byte, error) {
 	return file, nil
 }
 
-//numContentBlobs returns the number of content blobs required to store the data
-func numContentBlobs(data []byte) int {
-	return int(math.Ceil(float64(len(data)) / float64(maxBlobDataSize)))
+// Encoder reads bytes from a source and returns blobs of the stream
+type Encoder struct {
+	// source data to be encoded into a stream
+	src io.Reader
+	// preset IVs to use for encrypting blobs
+	ivs [][]byte
+	// an optionals hint about the total size of the source data
+	// encoder will use this to preallocate space for blobs
+	srcSizeHint int
+
+	// buffer for reading bytes from reader
+	buf []byte
+	// sd blob that gets built as stream is encoded
+	sd *SDBlob
+	// number of bytes read from src
+	srcLen int
+	// running hash bytes read from src
+	srcHash hash.Hash
+}
+
+// NewEncoder creates a new stream encoder
+func NewEncoder(src io.Reader) *Encoder {
+	return &Encoder{
+		src: src,
+
+		buf: make([]byte, maxBlobDataSize),
+		sd: &SDBlob{
+			StreamType: streamTypeLBRYFile,
+			Key:        randIV(),
+		},
+		srcHash: sha512.New384(),
+	}
+}
+
+// NewEncoderWithIVs creates a new encoder that uses preset cryptographic material
+func NewEncoderWithIVs(src io.Reader, key []byte, ivs [][]byte) *Encoder {
+	e := NewEncoder(src)
+	e.sd.Key = key
+	e.ivs = ivs
+	return e
+}
+
+// NewEncoderFromSD creates a new encoder that reuses cryptographic material from an sd blob
+// This can be used to reconstruct a stream exactly from a file
+// NOTE: this will assume that all blobs except the last one are at max length. in theory this is not
+// required, but in practice this is always true. if this is false, streams may not match exactly
+func NewEncoderFromSD(src io.Reader, sdBlob *SDBlob) *Encoder {
+	ivs := make([][]byte, len(sdBlob.BlobInfos))
+	for i := range ivs {
+		ivs[i] = sdBlob.BlobInfos[i].IV
+	}
+
+	e := NewEncoderWithIVs(src, sdBlob.Key, ivs)
+	e.sd.StreamName = sdBlob.StreamName
+	e.sd.SuggestedFileName = sdBlob.SuggestedFileName
+	return e
+}
+
+// TODO: consider making a NewPartialEncoder that also copies blobinfos from sdBlobs and seeks forward in the data
+// this would avoid re-creating blobs that were created in the past
+
+// Next reads the next chunk of data, encodes it into a blob, and adds it to the stream
+// When the source is fully consumed, Next() makes sure the stream is terminated (i.e. the sd blob
+// ends with an empty terminating blob) and returns io.EOF
+func (e *Encoder) Next() (Blob, error) {
+	n, err := e.src.Read(e.buf)
+	if err != nil {
+		if errors.Is(err, io.EOF) {
+			e.ensureTerminated()
+		}
+		return nil, err
+	}
+
+	e.srcLen += n
+	e.srcHash.Write(e.buf[:n])
+	iv := e.nextIV()
+
+	blob, err := NewBlob(e.buf[:n], e.sd.Key, iv)
+	if err != nil {
+		return nil, err
+	}
+
+	e.sd.addBlob(blob, iv)
+
+	return blob, nil
+}
+
+// Stream creates the whole stream in one call
+func (e *Encoder) Stream() (Stream, error) {
+	s := make(Stream, 1, 1+int(math.Ceil(float64(e.srcSizeHint)/maxBlobDataSize))) // len starts at 1 and cap is +1 to leave room for sd blob
+
+	for {
+		blob, err := e.Next()
+		if err != nil {
+			if errors.Is(err, io.EOF) {
+				break
+			}
+			return nil, err
+		}
+
+		s = append(s, blob)
+	}
+
+	s[0] = e.SDBlob().ToBlob()
+
+	if cap(s) > len(s) {
+		// size hint was too big. copy stream to smaller underlying array to free memory
+		// this might be premature optimization...
+		s = append(Stream(nil), s[:]...)
+	}
+
+	return s, nil
+}
+
+// SDBlob returns the sd blob so far
+func (e *Encoder) SDBlob() *SDBlob {
+	e.sd.updateStreamHash()
+	return e.sd
+}
+
+// SourceLen returns the number of bytes read from source
+func (e *Encoder) SourceLen() int {
+	return e.srcLen
+}
+
+// SourceLen returns a hash of the bytes read from source
+func (e *Encoder) SourceHash() []byte {
+	return e.srcHash.Sum(nil)
+}
+
+// SourceSizeHint sets a hint about the total size of the source
+// This helps allocate RAM more efficiently.
+// If the hint is wrong, it still works fine but there will be a small performance penalty.
+func (e *Encoder) SourceSizeHint(size int) *Encoder {
+	e.srcSizeHint = size
+	return e
+}
+
+func (e *Encoder) isTerminated() bool {
+	return len(e.sd.BlobInfos) >= 1 && e.sd.BlobInfos[len(e.sd.BlobInfos)-1].Length == 0
+}
+
+func (e *Encoder) ensureTerminated() {
+	if !e.isTerminated() {
+		e.sd.addBlob(Blob{}, e.nextIV())
+	}
+}
+
+// nextIV returns the next preset IV if there is one
+func (e *Encoder) nextIV() []byte {
+	if len(e.ivs) == 0 {
+		return randIV()
+	}
+
+	iv := e.ivs[0]
+	e.ivs = e.ivs[1:]
+	return iv
 }

stream/stream_test.go

@@ -2,13 +2,17 @@ package stream
 
 import (
 	"bytes"
+	"crypto/rand"
 	"crypto/sha256"
+	"crypto/sha512"
 	"encoding/hex"
+	"io"
 	"testing"
+
+	"github.com/lbryio/lbry.go/v2/extras/errors"
 )
 
-func TestStreamToFile(t *testing.T) {
-	blobHashes := []string{
+var testdataBlobHashes = []string{
 	"1bf7d39c45d1a38ffa74bff179bf7f67d400ff57fa0b5a0308963f08d01712b3079530a8c188e8c89d9b390c6ee06f05", // sd hash
 	"a2f1841bb9c5f3b583ac3b8c07ee1a5bf9cc48923721c30d5ca6318615776c284e8936d72fa4db7fdda2e4e9598b1e6c",
 	"0c9675ad7f40f29dcd41883ed9cf7e145bbb13976d9b83ab9354f4f61a87f0f7771a56724c2aa7a5ab43c68d7942e5cb",
@@ -16,12 +20,13 @@ func TestStreamToFile(t *testing.T) {
 	"dcd2093f4a3eca9f6dd59d785d0bef068fee788481986aa894cf72ed4d992c0ff9d19d1743525de2f5c3c62f5ede1c58",
 }
 
-	stream := make(Stream, len(blobHashes))
-	for i, hash := range blobHashes {
+func TestStreamToFile(t *testing.T) {
+	stream := make(Stream, len(testdataBlobHashes))
+	for i, hash := range testdataBlobHashes {
 		stream[i] = testdata(t, hash)
 	}
 
-	data, err := stream.Data()
+	data, err := stream.Decode()
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -33,6 +38,8 @@ func TestStreamToFile(t *testing.T) {
 		t.Errorf("file length mismatch. got %d, expected %d", actualLen, expectedLen)
 	}
 
+	expectedFileHash := sha512.Sum384(data)
+
 	expectedSha256 := unhex(t, "51e4d03bd6d69ea17d1be3ce01fdffa44ffe053f2dbce8d42a50283b2890fea2")
 	actualSha256 := sha256.Sum256(data)
 
@@ -46,22 +53,150 @@ func TestStreamToFile(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	newStream, err := Reconstruct(data, *sdBlob)
-	if err != nil {
-		t.Fatal(err)
+	enc := NewEncoderFromSD(bytes.NewBuffer(data), sdBlob)
+	newStream, err := enc.Stream()
+
+	if len(newStream) != len(testdataBlobHashes) {
+		t.Fatalf("stream length mismatch. got %d blobs, expected %d", len(newStream), len(testdataBlobHashes))
 	}
 
-	if len(newStream) != len(blobHashes) {
-		t.Fatalf("stream length mismatch. got %d blobs, expected %d", len(newStream), len(blobHashes))
+	if enc.SourceLen() != expectedLen {
+		t.Errorf("reconstructed file length mismatch. got %d, expected %d", enc.SourceLen(), expectedLen)
 	}
 
-	for i, hash := range blobHashes {
+	if !bytes.Equal(enc.SourceHash(), expectedFileHash[:]) {
+		t.Errorf("reconstructed file hash mismatch. got %s, expected %s", hex.EncodeToString(enc.SourceHash()), hex.EncodeToString(expectedFileHash[:]))
+	}
+
+	for i, hash := range testdataBlobHashes {
 		if newStream[i].HashHex() != hash {
 			t.Errorf("blob %d hash mismatch. got %s, expected %s", i, newStream[i].HashHex(), hash)
 		}
 	}
 }
 
+func TestMakeStream(t *testing.T) {
+	blobsToRead := 3
+	totalBlobs := blobsToRead + 3
+
+	data := make([]byte, ((totalBlobs-1)*maxBlobDataSize)+1000) // last blob is partial
+	_, err := rand.Read(data)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	buf := bytes.NewBuffer(data)
+
+	enc := NewEncoder(buf)
+
+	stream := make(Stream, blobsToRead+1) // +1 for sd blob
+	for i := 1; i < blobsToRead+1; i++ {  // start at 1 to skip sd blob
+		stream[i], err = enc.Next()
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	sdBlob := enc.SDBlob()
+
+	if len(sdBlob.BlobInfos) != blobsToRead {
+		t.Errorf("expected %d blobs in partial sdblob, got %d", blobsToRead, len(sdBlob.BlobInfos))
+	}
+	if enc.SourceLen() != maxBlobDataSize*blobsToRead {
+		t.Errorf("expected length of %d , got %d", maxBlobDataSize*blobsToRead, enc.SourceLen())
+	}
+
+	// now finish the stream, reusing key and IVs
+
+	buf = bytes.NewBuffer(data) // rewind to the beginning of the data
+
+	enc = NewEncoderFromSD(buf, sdBlob)
+
+	reconstructedStream, err := enc.Stream()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if len(reconstructedStream) != totalBlobs+1 { // +1 for the terminating blob at the end
+		t.Errorf("expected %d blobs in stream, got %d", totalBlobs+1, len(reconstructedStream))
+	}
+	if enc.SourceLen() != len(data) {
+		t.Errorf("expected length of %d , got %d", len(data), enc.SourceLen())
+	}
+
+	reconstructedSDBlob := enc.SDBlob()
+
+	for i := 0; i < len(sdBlob.BlobInfos); i++ {
+		if !bytes.Equal(sdBlob.BlobInfos[i].IV, reconstructedSDBlob.BlobInfos[i].IV) {
+			t.Errorf("blob info %d of reconstructed sd blobd does not match original sd blob", i)
+		}
+	}
+	for i := 1; i < len(stream); i++ { // start at 1 to skip sd blob
+		if !bytes.Equal(stream[i], reconstructedStream[i]) {
+			t.Errorf("blob %d of reconstructed stream does not match original stream", i)
+		}
+	}
+}
+
+func TestEmptyStream(t *testing.T) {
+	enc := NewEncoder(bytes.NewBuffer(nil))
+	_, err := enc.Next()
+	if !errors.Is(err, io.EOF) {
+		t.Errorf("expected io.EOF, got %v", err)
+	}
+	sd := enc.SDBlob()
+	if len(sd.BlobInfos) != 1 {
+		t.Errorf("expected 1 blobinfos in sd blob, got %d", len(sd.BlobInfos))
+	}
+	if sd.BlobInfos[0].Length != 0 {
+		t.Errorf("first and only blob to be the terminator blob")
+	}
+}
+
+func TestTermination(t *testing.T) {
+	b := make([]byte, 12)
+
+	enc := NewEncoder(bytes.NewBuffer(b))
+
+	_, err := enc.Next()
+	if err != nil {
+		t.Error(err)
+	}
+	if enc.isTerminated() {
+		t.Errorf("stream should not terminate until after EOF")
+	}
+
+	_, err = enc.Next()
+	if !errors.Is(err, io.EOF) {
+		t.Errorf("expected io.EOF, got %v", err)
+	}
+	if !enc.isTerminated() {
+		t.Errorf("stream should be terminated after EOF")
+	}
+
+	_, err = enc.Next()
+	if !errors.Is(err, io.EOF) {
+		t.Errorf("expected io.EOF on all subsequent reads, got %v", err)
+	}
+	sd := enc.SDBlob()
+	if len(sd.BlobInfos) != 2 {
+		t.Errorf("expected 2 blobinfos in sd blob, got %d", len(sd.BlobInfos))
+	}
+}
+
+func TestSizeHint(t *testing.T) {
+	b := make([]byte, 12)
+
+	newStream, err := NewEncoder(bytes.NewBuffer(b)).SourceSizeHint(5 * maxBlobDataSize).Stream()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if cap(newStream) != 2 { // 1 for sd blob, 1 for the 12 bytes of the actual stream
+		t.Fatalf("expected 2 blobs allocated, got %d", cap(newStream))
+	}
+}
+
 func TestNew(t *testing.T) {
 	t.Skip("TODO: test new stream creation and decryption")
 }

url/url.go

@@ -0,0 +1,347 @@
+package url
+
+import (
+	"errors"
+	"fmt"
+	"regexp"
+	"strconv"
+	"strings"
+)
+
+const regexPartProtocol = "^((?:lbry://|https://)?)"
+const regexPartHost = "((?:open.lbry.com/|lbry.tv/|lbry.lat/|lbry.fr/|lbry.in/)?)"
+const regexPartStreamOrChannelName = "([^:$#/]*)"
+const regexPartModifierSeparator = "([:$#]?)([^/]*)"
+const regexQueryStringBreaker = "^([\\S]+)([?][\\S]*)"
+const urlComponentsSize = 9
+
+const ChannelNameMinLength = 1
+const ClaimIdMaxLength = 40
+const ProtoDefault = "lbry://"
+const RegexClaimId = "(?i)^[0-9a-f]+$"
+const RegexInvalidUri = "(?i)[ =&#:$@%?;/\\\\\\\\\\\"<>%\\\\{\\\\}|^~\\\\[\\\\]`\\u0000-\\u0008\\u000b-\\u000c\\u000e-\\u001F\\uD800-\\uDFFF\\uFFFE-\\uFFFF]"
+
+type LbryUri struct {
+	Path                   string
+	IsChannel              bool
+	StreamName             string
+	StreamClaimId          string
+	ChannelName            string
+	ChannelClaimId         string
+	PrimaryClaimSequence   int
+	SecondaryClaimSequence int
+	PrimaryBidPosition     int
+	SecondaryBidPosition   int
+	ClaimName              string
+	ClaimId                string
+	ContentName            string
+	QueryString            string
+}
+
+type UriModifier struct {
+	ClaimId       string
+	ClaimSequence int
+	BidPosition   int
+}
+
+func (uri LbryUri) IsChannelUrl() bool {
+	return (!isEmpty(uri.ChannelName) && isEmpty(uri.StreamName)) || (!isEmpty(uri.ClaimName) && strings.HasPrefix(uri.ClaimName, "@"))
+}
+
+func (uri LbryUri) IsNameValid(name string) bool {
+	return !regexp.MustCompile(RegexInvalidUri).MatchString(name)
+}
+
+func (uri LbryUri) String() string {
+	return uri.Build(true, ProtoDefault, false)
+}
+
+func (uri LbryUri) VanityString() string {
+	return uri.Build(true, ProtoDefault, true)
+}
+
+func (uri LbryUri) TvString() string {
+	return uri.Build(true, "https://lbry.tv/", false)
+}
+
+func (uri LbryUri) Build(includeProto bool, protocol string, vanity bool) string {
+	formattedChannelName := ""
+	if !isEmpty(uri.ChannelName) {
+		formattedChannelName = uri.ChannelName
+		if !strings.HasPrefix(formattedChannelName, "@") {
+			formattedChannelName = fmt.Sprintf("@%s", formattedChannelName)
+		}
+	}
+	primaryClaimName := uri.ClaimName
+	if isEmpty(primaryClaimName) {
+		primaryClaimName = uri.ContentName
+	}
+	if isEmpty(primaryClaimName) {
+		primaryClaimName = formattedChannelName
+	}
+	if isEmpty(primaryClaimName) {
+		primaryClaimName = uri.StreamName
+	}
+
+	primaryClaimId := uri.ClaimId
+	if isEmpty(primaryClaimId) {
+		if !isEmpty(formattedChannelName) {
+			primaryClaimId = uri.ChannelClaimId
+		} else {
+			primaryClaimId = uri.StreamClaimId
+		}
+	}
+
+	var sb strings.Builder
+	if includeProto {
+		sb.WriteString(protocol)
+	}
+	sb.WriteString(primaryClaimName)
+	if vanity {
+		return sb.String()
+	}
+
+	secondaryClaimName := ""
+	if isEmpty(uri.ClaimName) && !isEmpty(uri.ContentName) {
+		secondaryClaimName = uri.ContentName
+	}
+	if isEmpty(secondaryClaimName) {
+		if !isEmpty(formattedChannelName) {
+			secondaryClaimName = uri.StreamName
+		}
+	}
+	secondaryClaimId := ""
+	if !isEmpty(secondaryClaimName) {
+		secondaryClaimId = uri.StreamClaimId
+	}
+
+	if !isEmpty(primaryClaimId) {
+		sb.WriteString("#")
+		sb.WriteString(primaryClaimId)
+	} else if uri.PrimaryClaimSequence > 0 {
+		sb.WriteString(":")
+		sb.WriteString(strconv.Itoa(uri.PrimaryClaimSequence))
+	} else if uri.PrimaryBidPosition > 0 {
+		sb.WriteString("$")
+		sb.WriteString(strconv.Itoa(uri.PrimaryBidPosition))
+	}
+
+	if !isEmpty(secondaryClaimName) {
+		sb.WriteString("/")
+		sb.WriteString(secondaryClaimName)
+	}
+
+	if !isEmpty(secondaryClaimId) {
+		sb.WriteString("#")
+		sb.WriteString(secondaryClaimId)
+	} else if uri.SecondaryClaimSequence > 0 {
+		sb.WriteString(":")
+		sb.WriteString(strconv.Itoa(uri.SecondaryClaimSequence))
+	} else if uri.SecondaryBidPosition > 0 {
+		sb.WriteString("$")
+		sb.WriteString(strconv.Itoa(uri.SecondaryBidPosition))
+	}
+
+	return sb.String()
+}
+
+func Parse(url string, requireProto bool) (*LbryUri, error) {
+	if isEmpty(url) {
+		return nil, errors.New("invalid url parameter")
+	}
+
+	reComponents := regexp.MustCompile(
+		fmt.Sprintf("(?i)%s%s%s%s(/?)%s%s",
+			regexPartProtocol,
+			regexPartHost,
+			regexPartStreamOrChannelName,
+			regexPartModifierSeparator,
+			regexPartStreamOrChannelName,
+			regexPartModifierSeparator))
+	reSeparateQueryString := regexp.MustCompile(regexQueryStringBreaker)
+
+	cleanUrl := url
+	queryString := ""
+
+	qsMatches := reSeparateQueryString.FindStringSubmatch(url)
+	if len(qsMatches) == 3 {
+		cleanUrl = qsMatches[1]
+		queryString = qsMatches[2][1:]
+	}
+
+	var components []string
+	componentMatches := reComponents.FindStringSubmatch(cleanUrl)
+	for _, component := range componentMatches[1:] {
+		components = append(components, component)
+	}
+	if len(components) != urlComponentsSize {
+		return nil, errors.New("regular expression error occurred while trying to Parse the value")
+	}
+
+	/*
+	 * components[0] = proto
+	 * components[1] = host
+	 * components[2] = streamName or channelName
+	 * components[3] = primaryModSeparator
+	 * components[4] = primaryModValue
+	 * components[5] = path separator
+	 * components[6] = possibleStreamName
+	 * components[7] = secondaryModSeparator
+	 * components[8] = secondaryModValue
+	 */
+	if requireProto && isEmpty(components[0]) {
+		return nil, errors.New("url must include a protocol prefix (lbry://)")
+	}
+	if isEmpty(components[2]) {
+		return nil, errors.New("url does not include a name")
+	}
+	for _, component := range components[2:] {
+		if strings.Index(component, " ") > -1 {
+			return nil, errors.New("url cannot include a space")
+		}
+	}
+
+	streamOrChannelName := components[2]
+	primaryModSeparator := components[3]
+	primaryModValue := components[4]
+	possibleStreamName := components[6]
+	secondaryModSeparator := components[7]
+	secondaryModValue := components[8]
+	primaryClaimId := ""
+	primaryClaimSequence := -1
+	primaryBidPosition := -1
+	secondaryClaimSequence := -1
+	secondaryBidPosition := -1
+
+	includesChannel := strings.HasPrefix(streamOrChannelName, "@")
+	isChannel := includesChannel && isEmpty(possibleStreamName)
+	channelName := ""
+	if includesChannel && len(streamOrChannelName) > 1 {
+		channelName = streamOrChannelName[1:]
+	}
+
+	// Convert the mod separators when parsing with protocol https://lbry.tv/ or similar
+	// [https://] uses ':', [lbry://] expects #
+	if !isEmpty(components[1]) {
+		if primaryModSeparator == ":" {
+			primaryModSeparator = "#"
+		}
+		if secondaryModSeparator == ":" {
+			secondaryModSeparator = "#"
+		}
+	}
+
+	if includesChannel {
+		if isEmpty(channelName) {
+			// I wonder if this check is really necessary, considering the subsequent min length check
+			return nil, errors.New("no channel name after @")
+		}
+		if len(channelName) < ChannelNameMinLength {
+			return nil, errors.New(fmt.Sprintf("Channel names must be at least %d character long.", ChannelNameMinLength))
+		}
+	}
+
+	var err error
+	var primaryMod *UriModifier
+	var secondaryMod *UriModifier
+	if !isEmpty(primaryModSeparator) && !isEmpty(primaryModValue) {
+		primaryMod, err = parseModifier(primaryModSeparator, primaryModValue)
+		if err != nil {
+			return nil, err
+		}
+
+		primaryClaimId = primaryMod.ClaimId
+		primaryClaimSequence = primaryMod.ClaimSequence
+		primaryBidPosition = primaryMod.BidPosition
+	}
+	if !isEmpty(secondaryModSeparator) && !isEmpty(secondaryModValue) {
+		secondaryMod, err = parseModifier(secondaryModSeparator, secondaryModValue)
+		if err != nil {
+			return nil, err
+		}
+
+		secondaryClaimSequence = secondaryMod.ClaimSequence
+		secondaryBidPosition = secondaryMod.BidPosition
+	}
+
+	streamName := streamOrChannelName
+	if includesChannel {
+		streamName = possibleStreamName
+	}
+
+	streamClaimId := ""
+	if includesChannel && secondaryMod != nil {
+		streamClaimId = secondaryMod.ClaimId
+	} else if primaryMod != nil {
+		streamClaimId = primaryMod.ClaimId
+	}
+	channelClaimId := ""
+	if includesChannel && primaryMod != nil {
+		channelClaimId = primaryMod.ClaimId
+	}
+
+	return &LbryUri{
+		Path:                   strings.Join(components[2:], ""),
+		IsChannel:              isChannel,
+		StreamName:             streamName,
+		StreamClaimId:          streamClaimId,
+		ChannelName:            channelName,
+		ChannelClaimId:         channelClaimId,
+		PrimaryClaimSequence:   primaryClaimSequence,
+		SecondaryClaimSequence: secondaryClaimSequence,
+		PrimaryBidPosition:     primaryBidPosition,
+		SecondaryBidPosition:   secondaryBidPosition,
+		ClaimName:              streamOrChannelName,
+		ClaimId:                primaryClaimId,
+		ContentName:            streamName,
+		QueryString:            queryString,
+	}, nil
+}
+
+func parseModifier(modSeparator string, modValue string) (*UriModifier, error) {
+	claimId := ""
+	claimSequence := 0
+	bidPosition := 0
+
+	if !isEmpty(modSeparator) {
+		if isEmpty(modValue) {
+			return nil, errors.New(fmt.Sprintf("No modifier provided after separator %s", modSeparator))
+		}
+
+		if modSeparator == "#" {
+			claimId = modValue
+		} else if modSeparator == ":" {
+			claimId = modValue
+		} else if modSeparator == "$" {
+			bidPosition = parseInt(modValue, -1)
+		}
+	}
+
+	if !isEmpty(claimId) && (len(claimId) > ClaimIdMaxLength || !regexp.MustCompile(RegexClaimId).MatchString(claimId)) {
+		return nil, errors.New(fmt.Sprintf("Invalid claim ID %s", claimId))
+	}
+	if claimSequence == -1 {
+		return nil, errors.New("claim sequence must be a number")
+	}
+	if bidPosition == -1 {
+		return nil, errors.New("bid position must be a number")
+	}
+
+	return &UriModifier{
+		ClaimId:       claimId,
+		ClaimSequence: claimSequence,
+		BidPosition:   bidPosition,
+	}, nil
+}
+
+func parseInt(value string, defaultValue int) int {
+	v, err := strconv.ParseInt(value, 10, 32)
+	if err != nil {
+		return defaultValue
+	}
+	return int(v)
+}
+
+func isEmpty(s string) bool {
+	return len(strings.TrimSpace(s)) == 0
+}