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migration.go
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migration.go
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package stake
import (
"encoding/hex"
"github.com/cockroachdb/errors"
v1pb "github.com/lbryio/types/v1/go"
pb "github.com/lbryio/types/v2/go"
"github.com/lbryio/lbcutil/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.WithStack(errors.Newf("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.WithStack(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.WithStack(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.WithStack(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)
}
}