status-go/protocol/messenger_profile_showcase.go

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package protocol
import (
"crypto/ecdsa"
crand "crypto/rand"
"errors"
"reflect"
"google.golang.org/protobuf/proto"
"github.com/status-im/status-go/protocol/common"
"github.com/status-im/status-go/protocol/protobuf"
)
func toProfileShowcaseCommunityProto(preferences []*ProfileShowcaseCommunityPreference, visibility ProfileShowcaseVisibility) []*protobuf.ProfileShowcaseCommunity {
communities := []*protobuf.ProfileShowcaseCommunity{}
for _, preference := range preferences {
if preference.ShowcaseVisibility != visibility {
continue
}
communities = append(communities, &protobuf.ProfileShowcaseCommunity{
CommunityId: preference.CommunityID,
Order: uint32(preference.Order),
})
}
return communities
}
func toProfileShowcaseAccountProto(preferences []*ProfileShowcaseAccountPreference, visibility ProfileShowcaseVisibility) []*protobuf.ProfileShowcaseAccount {
accounts := []*protobuf.ProfileShowcaseAccount{}
for _, preference := range preferences {
if preference.ShowcaseVisibility != visibility {
continue
}
accounts = append(accounts, &protobuf.ProfileShowcaseAccount{
Address: preference.Address,
Name: preference.Name,
ColorId: preference.ColorID,
Emoji: preference.Emoji,
Order: uint32(preference.Order),
})
}
return accounts
}
func toProfileShowcaseCollectibleProto(preferences []*ProfileShowcaseCollectiblePreference, visibility ProfileShowcaseVisibility) []*protobuf.ProfileShowcaseCollectible {
collectibles := []*protobuf.ProfileShowcaseCollectible{}
for _, preference := range preferences {
if preference.ShowcaseVisibility != visibility {
continue
}
collectibles = append(collectibles, &protobuf.ProfileShowcaseCollectible{
Uid: preference.UID,
Order: uint32(preference.Order),
})
}
return collectibles
}
func toProfileShowcaseAssetProto(preferences []*ProfileShowcaseAssetPreference, visibility ProfileShowcaseVisibility) []*protobuf.ProfileShowcaseAsset {
assets := []*protobuf.ProfileShowcaseAsset{}
for _, preference := range preferences {
if preference.ShowcaseVisibility != visibility {
continue
}
assets = append(assets, &protobuf.ProfileShowcaseAsset{
Symbol: preference.Symbol,
Order: uint32(preference.Order),
})
}
return assets
}
func fromProfileShowcaseCommunityProto(messages []*protobuf.ProfileShowcaseCommunity) []*ProfileShowcaseCommunity {
communities := []*ProfileShowcaseCommunity{}
for _, entry := range messages {
communities = append(communities, &ProfileShowcaseCommunity{
CommunityID: entry.CommunityId,
Order: int(entry.Order),
})
}
return communities
}
func fromProfileShowcaseAccountProto(messages []*protobuf.ProfileShowcaseAccount) []*ProfileShowcaseAccount {
accounts := []*ProfileShowcaseAccount{}
for _, entry := range messages {
accounts = append(accounts, &ProfileShowcaseAccount{
Address: entry.Address,
Name: entry.Name,
ColorID: entry.ColorId,
Emoji: entry.Emoji,
Order: int(entry.Order),
})
}
return accounts
}
func fromProfileShowcaseCollectibleProto(messages []*protobuf.ProfileShowcaseCollectible) []*ProfileShowcaseCollectible {
collectibles := []*ProfileShowcaseCollectible{}
for _, entry := range messages {
collectibles = append(collectibles, &ProfileShowcaseCollectible{
UID: entry.Uid,
Order: int(entry.Order),
})
}
return collectibles
}
func fromProfileShowcaseAssetProto(messages []*protobuf.ProfileShowcaseAsset) []*ProfileShowcaseAsset {
assets := []*ProfileShowcaseAsset{}
for _, entry := range messages {
assets = append(assets, &ProfileShowcaseAsset{
Symbol: entry.Symbol,
Order: int(entry.Order),
})
}
return assets
}
func (m *Messenger) SetProfileShowcasePreferences(preferences *ProfileShowcasePreferences) error {
err := m.persistence.SaveProfileShowcasePreferences(preferences)
if err != nil {
return err
}
return m.publishContactCode()
}
func (m *Messenger) GetProfileShowcasePreferences() (*ProfileShowcasePreferences, error) {
return m.persistence.GetProfileShowcasePreferences()
}
func (m *Messenger) GetProfileShowcaseForContact(contactID string) (*ProfileShowcase, error) {
return m.persistence.GetProfileShowcaseForContact(contactID)
}
func (m *Messenger) EncryptProfileShowcaseEntriesWithContactPubKeys(entries *protobuf.ProfileShowcaseEntries, contacts []*Contact) (*protobuf.ProfileShowcaseEntriesEncrypted, error) {
// Make AES key
AESKey := make([]byte, 32)
_, err := crand.Read(AESKey)
if err != nil {
return nil, err
}
// Encrypt showcase entries with the AES key
data, err := proto.Marshal(entries)
if err != nil {
return nil, err
}
encrypted, err := common.Encrypt(data, AESKey, crand.Reader)
if err != nil {
return nil, err
}
eAESKeys := [][]byte{}
// Sign for each contact
for _, contact := range contacts {
var pubK *ecdsa.PublicKey
var sharedKey []byte
var eAESKey []byte
pubK, err = contact.PublicKey()
if err != nil {
return nil, err
}
// Generate a Diffie-Helman (DH) between the sender private key and the recipient's public key
sharedKey, err = common.MakeECDHSharedKey(m.identity, pubK)
if err != nil {
return nil, err
}
// Encrypt the main AES key with AES encryption using the DH key
eAESKey, err = common.Encrypt(AESKey, sharedKey, crand.Reader)
if err != nil {
return nil, err
}
eAESKeys = append(eAESKeys, eAESKey)
}
return &protobuf.ProfileShowcaseEntriesEncrypted{
EncryptedEntries: encrypted,
EncryptionKeys: eAESKeys,
}, nil
}
func (m *Messenger) DecryptProfileShowcaseEntriesWithPubKey(senderPubKey *ecdsa.PublicKey, encrypted *protobuf.ProfileShowcaseEntriesEncrypted) (*protobuf.ProfileShowcaseEntries, error) {
for _, eAESKey := range encrypted.EncryptionKeys {
// Generate a Diffie-Helman (DH) between the recipient's private key and the sender's public key
sharedKey, err := common.MakeECDHSharedKey(m.identity, senderPubKey)
if err != nil {
return nil, err
}
// Decrypt the main encryption AES key with AES encryption using the DH key
dAESKey, err := common.Decrypt(eAESKey, sharedKey)
if err != nil {
if err.Error() == ErrCipherMessageAutentificationFailed {
continue
}
return nil, err
}
if dAESKey == nil {
return nil, errors.New("decrypting the payload encryption key resulted in no error and a nil key")
}
// Decrypt profile entries with the newly decrypted main encryption AES key
entriesData, err := common.Decrypt(encrypted.EncryptedEntries, dAESKey)
if err != nil {
return nil, err
}
entries := &protobuf.ProfileShowcaseEntries{}
err = proto.Unmarshal(entriesData, entries)
if err != nil {
return nil, err
}
return entries, nil
}
// Return empty if no matching key found
return &protobuf.ProfileShowcaseEntries{}, nil
}
func (m *Messenger) GetProfileShowcaseForSelfIdentity() (*protobuf.ProfileShowcase, error) {
preferences, err := m.GetProfileShowcasePreferences()
if err != nil {
return nil, err
}
forEveryone := &protobuf.ProfileShowcaseEntries{
Communities: toProfileShowcaseCommunityProto(preferences.Communities, ProfileShowcaseVisibilityEveryone),
Accounts: toProfileShowcaseAccountProto(preferences.Accounts, ProfileShowcaseVisibilityEveryone),
Collectibles: toProfileShowcaseCollectibleProto(preferences.Collectibles, ProfileShowcaseVisibilityEveryone),
Assets: toProfileShowcaseAssetProto(preferences.Assets, ProfileShowcaseVisibilityEveryone),
}
forContacts := &protobuf.ProfileShowcaseEntries{
Communities: toProfileShowcaseCommunityProto(preferences.Communities, ProfileShowcaseVisibilityContacts),
Accounts: toProfileShowcaseAccountProto(preferences.Accounts, ProfileShowcaseVisibilityContacts),
Collectibles: toProfileShowcaseCollectibleProto(preferences.Collectibles, ProfileShowcaseVisibilityContacts),
Assets: toProfileShowcaseAssetProto(preferences.Assets, ProfileShowcaseVisibilityContacts),
}
forIDVerifiedContacts := &protobuf.ProfileShowcaseEntries{
Communities: toProfileShowcaseCommunityProto(preferences.Communities, ProfileShowcaseVisibilityIDVerifiedContacts),
Accounts: toProfileShowcaseAccountProto(preferences.Accounts, ProfileShowcaseVisibilityIDVerifiedContacts),
Collectibles: toProfileShowcaseCollectibleProto(preferences.Collectibles, ProfileShowcaseVisibilityIDVerifiedContacts),
Assets: toProfileShowcaseAssetProto(preferences.Assets, ProfileShowcaseVisibilityIDVerifiedContacts),
}
mutualContacts := []*Contact{}
iDVerifiedContacts := []*Contact{}
m.allContacts.Range(func(_ string, contact *Contact) (shouldContinue bool) {
if contact.mutual() {
mutualContacts = append(mutualContacts, contact)
if contact.IsVerified() {
iDVerifiedContacts = append(iDVerifiedContacts, contact)
}
}
return true
})
forContactsEncrypted, err := m.EncryptProfileShowcaseEntriesWithContactPubKeys(forContacts, mutualContacts)
if err != nil {
return nil, err
}
forIDVerifiedContactsEncrypted, err := m.EncryptProfileShowcaseEntriesWithContactPubKeys(forIDVerifiedContacts, iDVerifiedContacts)
if err != nil {
return nil, err
}
return &protobuf.ProfileShowcase{
ForEveryone: forEveryone,
ForContacts: forContactsEncrypted,
ForIdVerifiedContacts: forIDVerifiedContactsEncrypted,
}, nil
}
func (m *Messenger) BuildProfileShowcaseFromIdentity(state *ReceivedMessageState, message *protobuf.ProfileShowcase) error {
communities := []*ProfileShowcaseCommunity{}
accounts := []*ProfileShowcaseAccount{}
collectibles := []*ProfileShowcaseCollectible{}
assets := []*ProfileShowcaseAsset{}
communities = append(communities, fromProfileShowcaseCommunityProto(message.ForEveryone.Communities)...)
accounts = append(accounts, fromProfileShowcaseAccountProto(message.ForEveryone.Accounts)...)
collectibles = append(collectibles, fromProfileShowcaseCollectibleProto(message.ForEveryone.Collectibles)...)
assets = append(assets, fromProfileShowcaseAssetProto(message.ForEveryone.Assets)...)
senderPubKey := state.CurrentMessageState.PublicKey
contactID := state.CurrentMessageState.Contact.ID
forContacts, err := m.DecryptProfileShowcaseEntriesWithPubKey(senderPubKey, message.ForContacts)
if err != nil {
return err
}
if forContacts != nil {
communities = append(communities, fromProfileShowcaseCommunityProto(forContacts.Communities)...)
accounts = append(accounts, fromProfileShowcaseAccountProto(forContacts.Accounts)...)
collectibles = append(collectibles, fromProfileShowcaseCollectibleProto(forContacts.Collectibles)...)
assets = append(assets, fromProfileShowcaseAssetProto(forContacts.Assets)...)
}
forIDVerifiedContacts, err := m.DecryptProfileShowcaseEntriesWithPubKey(senderPubKey, message.ForIdVerifiedContacts)
if err != nil {
return err
}
if forIDVerifiedContacts != nil {
communities = append(communities, fromProfileShowcaseCommunityProto(forIDVerifiedContacts.Communities)...)
accounts = append(accounts, fromProfileShowcaseAccountProto(forIDVerifiedContacts.Accounts)...)
collectibles = append(collectibles, fromProfileShowcaseCollectibleProto(forIDVerifiedContacts.Collectibles)...)
assets = append(assets, fromProfileShowcaseAssetProto(forIDVerifiedContacts.Assets)...)
}
newShowcase := &ProfileShowcase{
ContactID: contactID,
Communities: communities,
Accounts: accounts,
Collectibles: collectibles,
Assets: assets,
}
oldShowcase, err := m.persistence.GetProfileShowcaseForContact(contactID)
if err != nil {
return err
}
if reflect.DeepEqual(newShowcase, oldShowcase) {
return nil
}
err = m.persistence.ClearProfileShowcaseForContact(contactID)
if err != nil {
return err
}
err = m.persistence.SaveProfileShowcaseForContact(newShowcase)
if err != nil {
return err
}
state.Response.AddProfileShowcase(newShowcase)
return nil
}