63 lines
1.9 KiB
Go
63 lines
1.9 KiB
Go
package messages
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import (
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"errors"
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"forge.redroom.link/yves/meowlib"
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"forge.redroom.link/yves/meowlib/client"
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"google.golang.org/protobuf/proto"
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)
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// Step3InitiatorFinalizesInviteeAndCreatesContactCard is called by the initiator when the
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// step-2 answer (serialized Invitation bytes) arrives. It decrypts the invitee's ContactCard,
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// upgrades the pending peer with the invitee's real keys, and returns a serialized Invitation
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// (step=3) whose Payload is the initiator's ContactCard, ready to be consumed directly by
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// Step4InviteeFinalizesInitiator on the invitee side.
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func Step3InitiatorFinalizesInviteeAndCreatesContactCard(invitationBytes []byte) ([]byte, error) {
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var invitation meowlib.Invitation
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if err := proto.Unmarshal(invitationBytes, &invitation); err != nil {
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return nil, err
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}
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var invitationAnswer meowlib.PackedUserMessage
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if err := proto.Unmarshal(invitation.Payload, &invitationAnswer); err != nil {
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return nil, err
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}
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peer := client.GetConfig().GetIdentity().Peers.GetFromInvitationId(invitation.Uuid)
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if peer == nil {
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return nil, errors.New("no peer for invitation uuid " + invitation.Uuid)
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}
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// Guard against duplicate delivery (e.g., same answer from multiple servers).
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if peer.InvitationKp == nil {
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return nil, nil
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}
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usermsg, err := peer.ProcessInboundStep2UserMessage(&invitationAnswer, invitation.From)
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if err != nil {
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return nil, err
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}
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var inviteeCC meowlib.ContactCard
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if err := proto.Unmarshal(usermsg.Invitation.Payload, &inviteeCC); err != nil {
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return nil, err
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}
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myCC, _, err := client.GetConfig().GetIdentity().InvitationStep3(&inviteeCC)
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if err != nil {
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return nil, err
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}
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client.GetConfig().GetIdentity().Save()
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ccBytes, err := proto.Marshal(myCC)
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if err != nil {
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return nil, err
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}
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inv := &meowlib.Invitation{
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Uuid: myCC.InvitationId,
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Step: 3,
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Payload: ccBytes,
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}
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return proto.Marshal(inv)
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}
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