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store.go
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store.go
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package v5
import (
"github.com/cosmos/cosmos-sdk/codec"
"github.com/cosmos/cosmos-sdk/store/prefix"
sdk "github.com/cosmos/cosmos-sdk/types"
v5types "github.com/magewar/mage/x/profiles/legacy/v5/types"
"github.com/magewar/mage/x/profiles/types"
)
// MigrateStore performs in-place store migrations from v5 to v6.
// The migration includes:
//
// - add missing application links owner keys to allow reverse searches
// - add missing chain links owner keys to allow reverse searches
// - remove all chain links that are not valid anymore due to the new validation rules
func MigrateStore(ctx sdk.Context, storeKey sdk.StoreKey, cdc codec.BinaryCodec, legacyAmino *codec.LegacyAmino) error {
store := ctx.KVStore(storeKey)
// Fix the application links
err := fixApplicationLinks(store, cdc)
if err != nil {
return err
}
// Fix the chain links
err = fixChainLinks(store, cdc, legacyAmino)
if err != nil {
return err
}
return nil
}
// fixApplicationLinks fixes the application links by adding the missing owner keys
func fixApplicationLinks(store sdk.KVStore, cdc codec.BinaryCodec) error {
applicationLinksStore := prefix.NewStore(store, types.ApplicationLinkPrefix)
applicationLinksIterator := applicationLinksStore.Iterator(nil, nil)
var applicationLinks []v5types.ApplicationLink
for ; applicationLinksIterator.Valid(); applicationLinksIterator.Next() {
var applicationLink v5types.ApplicationLink
err := cdc.Unmarshal(applicationLinksIterator.Value(), &applicationLink)
if err != nil {
return err
}
applicationLinks = append(applicationLinks, applicationLink)
}
applicationLinksIterator.Close()
for _, link := range applicationLinks {
store.Set(types.ApplicationLinkOwnerKey(link.Data.Application, link.Data.Username, link.User), []byte{0x01})
}
return nil
}
// fixChainLinks fixes the chain links by adding the missing owner keys
func fixChainLinks(store sdk.KVStore, cdc codec.BinaryCodec, legacyAmino *codec.LegacyAmino) error {
chainLinkStore := prefix.NewStore(store, types.ChainLinksPrefix)
chainLinksIterator := chainLinkStore.Iterator(nil, nil)
var validChainLinks []v5types.ChainLink
var invalidChainLinks []v5types.ChainLink
for ; chainLinksIterator.Valid(); chainLinksIterator.Next() {
var chainLink v5types.ChainLink
err := cdc.Unmarshal(chainLinksIterator.Value(), &chainLink)
if err != nil {
return err
}
// Make sure the signed value is valid, if it's a transaction
err = chainLink.Proof.Verify(cdc, legacyAmino, chainLink.User, chainLink.GetAddressData())
if err == nil {
validChainLinks = append(validChainLinks, chainLink)
} else {
invalidChainLinks = append(invalidChainLinks, chainLink)
}
}
chainLinksIterator.Close()
// Delete invalid chain links
for _, link := range invalidChainLinks {
store.Delete(types.ChainLinksStoreKey(link.User, link.ChainConfig.Name, link.GetAddressData().GetValue()))
}
// Store the owners of valid chain links
for _, link := range validChainLinks {
store.Set(types.ChainLinkOwnerKey(link.ChainConfig.Name, link.GetAddressData().GetValue(), link.User), []byte{0x01})
}
return nil
}