64 lines
1.8 KiB
Go
64 lines
1.8 KiB
Go
package files
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import (
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"errors"
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"os"
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"strings"
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"forge.redroom.link/yves/meowlib"
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"forge.redroom.link/yves/meowlib/client"
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"forge.redroom.link/yves/meowlib/client/invitation/messages"
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"google.golang.org/protobuf/proto"
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)
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// Step2ReadAndAnswer reads an InvitationInitPayload from a .mwiv file, creates the
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// invitee's peer entry, and writes the encrypted ContactCard (PackedUserMessage) to a
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// .mwiv file for the initiator to pick up and process in step 3.
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func Step2ReadAndAnswer(invitationFile string, nickname string, myNickname string, serverUids []string) error {
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if _, err := os.Stat(invitationFile); os.IsNotExist(err) {
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return err
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}
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if !strings.HasSuffix(invitationFile, ".mwiv") {
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return errors.New("only .mwiv files are supported")
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}
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data, err := os.ReadFile(invitationFile)
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if err != nil {
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return err
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}
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payload, err := meowlib.NewInvitationInitPayloadFromCompressed(data)
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if err != nil {
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return err
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}
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mynick := myNickname
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if mynick == "" {
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mynick = client.GetConfig().GetIdentity().Nickname
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}
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packed, peer, err := messages.Step2InviteeCreatesInitiatorAndEncryptedContactCard(payload, nickname, mynick, serverUids)
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if err != nil {
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return err
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}
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// Wrap the PackedUserMessage in an Invitation so the initiator (step3) has the
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// invitee's public key available for signature verification without an extra file.
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packedBytes, err := proto.Marshal(packed)
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if err != nil {
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return err
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}
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invitation := &meowlib.Invitation{
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Uuid: peer.InvitationId,
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Step: 2,
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From: peer.MyIdentity.Public,
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Payload: packedBytes,
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}
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out, err := proto.Marshal(invitation)
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if err != nil {
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return err
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}
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c := client.GetConfig()
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filename := c.StoragePath + string(os.PathSeparator) + mynick + "-" + nickname + ".mwiv"
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return os.WriteFile(filename, out, 0600)
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}
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