109 lines
2.8 KiB
Go
109 lines
2.8 KiB
Go
package acltree
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import (
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"github.com/anytypeio/go-anytype-infrastructure-experiments/account"
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"github.com/anytypeio/go-anytype-infrastructure-experiments/aclchanges/pb"
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"github.com/anytypeio/go-anytype-infrastructure-experiments/util/cid"
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"github.com/anytypeio/go-anytype-infrastructure-experiments/util/keys"
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"github.com/gogo/protobuf/proto"
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)
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type MarshalledChange = []byte
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type ACLChangeBuilder interface {
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UserAdd(identity string, encryptionKey keys.EncryptionPubKey, permissions pb.ACLChangeUserPermissions)
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AddId(id string) // TODO: this is only for testing
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SetMakeSnapshot(bool) // TODO: who should decide this? probably ACLTree so we can delete it
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}
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type ChangeBuilder interface {
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ACLChangeBuilder
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AddChangeContent(marshaler proto.Marshaler) // user code should be responsible for making regular snapshots
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}
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type changeBuilder struct {
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aclState *ACLState
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tree *Tree
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acc *account.AccountData
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aclData *pb.ACLChangeACLData
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changeContent proto.Marshaler
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id string
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makeSnapshot bool
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}
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func newChangeBuilder() *changeBuilder {
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return &changeBuilder{}
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}
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func (c *changeBuilder) Init(state *ACLState, tree *Tree, acc *account.AccountData) {
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c.aclState = state
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c.tree = tree
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c.acc = acc
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c.aclData = &pb.ACLChangeACLData{}
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}
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func (c *changeBuilder) AddId(id string) {
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c.id = id
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}
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func (c *changeBuilder) SetMakeSnapshot(b bool) {
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c.makeSnapshot = b
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}
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func (c *changeBuilder) UserAdd(identity string, encryptionKey keys.EncryptionPubKey, permissions pb.ACLChangeUserPermissions) {
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//TODO implement me
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panic("implement me")
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}
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func (c *changeBuilder) Build() (*Change, []byte, error) {
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marshalled, err := c.changeContent.Marshal()
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if err != nil {
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return nil, nil, err
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}
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encrypted, err := c.aclState.userReadKeys[c.aclState.currentReadKeyHash].
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Encrypt(marshalled)
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if err != nil {
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return nil, nil, err
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}
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if c.makeSnapshot {
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c.aclData.AclSnapshot = c.aclState.makeSnapshot()
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}
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aclChange := &pb.ACLChange{
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TreeHeadIds: c.tree.Heads(),
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AclHeadIds: c.tree.ACLHeads(),
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SnapshotBaseId: c.tree.RootId(),
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AclData: c.aclData,
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ChangesData: encrypted,
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CurrentReadKeyHash: c.aclState.currentReadKeyHash,
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Timestamp: 0,
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Identity: c.acc.Identity,
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}
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fullMarshalledChange, err := proto.Marshal(aclChange)
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if err != nil {
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return nil, nil, err
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}
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signature, err := c.acc.SignKey.Sign(fullMarshalledChange)
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if err != nil {
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return nil, nil, err
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}
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id, err := cid.NewCIDFromBytes(fullMarshalledChange)
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if err != nil {
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return nil, nil, err
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}
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ch := NewChange(id, aclChange)
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ch.DecryptedDocumentChange = marshalled
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ch.Sign = signature
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return ch, fullMarshalledChange, nil
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}
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func (c *changeBuilder) AddChangeContent(marshaler proto.Marshaler) {
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c.changeContent = marshaler
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}
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