Take event handlers from vise-event

store/user_store.go

@@ -6,6 +6,8 @@ import (
 	visedb "git.defalsify.org/vise.git/db"
 	storedb "git.grassecon.net/grassrootseconomics/sarafu-vise/store/db"
 	"git.grassecon.net/grassrootseconomics/sarafu-vise/store/db"
+	"git.grassecon.net/grassrootseconomics/common/hex"
+	"git.grassecon.net/grassrootseconomics/common/identity"
 )
 
 // TODO: Rename interface, "datastore" is redundant naming and too general
@@ -39,3 +41,37 @@ func (store *UserDataStore) WriteEntry(ctx context.Context, sessionId string, ty
 func StoreToPrefixDb(userStore *UserDataStore, pfx []byte) storedb.PrefixDb {
 	return storedb.NewSubPrefixDb(userStore.Db, pfx)
 }
+
+// IdentityFromAddress fully populates and Identity object from a given
+// checksum address.
+//
+// It is the caller's responsibility to ensure that a valid checksum address
+// is passed.
+func IdentityFromAddress(ctx context.Context, userStore *UserDataStore, address string) (identity.Identity, error) {
+	var err error
+	var ident identity.Identity
+
+	ident.ChecksumAddress = address
+	ident.NormalAddress, err = hex.NormalizeHex(ident.ChecksumAddress)
+	if err != nil {
+		return ident, err
+	}
+	ident.SessionId, err = getSessionIdByAddress(ctx, userStore, ident.NormalAddress)
+	if err != nil {
+		return ident, err
+	}
+	return ident, nil
+}
+
+// load matching session from address from db store.
+func getSessionIdByAddress(ctx context.Context, userStore *UserDataStore, address string) (string, error) {
+	// TODO: replace with userdatastore when double sessionid issue fixed
+	//r, err := store.ReadEntry(ctx, address, common.DATA_PUBLIC_KEY_REVERSE)
+	userStore.Db.SetPrefix(visedb.DATATYPE_USERDATA)
+	userStore.Db.SetSession(address)
+	r, err := userStore.Db.Get(ctx, storedb.PackKey(storedb.DATA_PUBLIC_KEY_REVERSE, []byte{}))
+	if err != nil {
+		return "", err
+	}
+	return string(r), nil
+}