status-go/protocol/contact.go

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package protocol
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import (
"crypto/ecdsa"
"github.com/status-im/status-go/eth-node/crypto"
"github.com/status-im/status-go/eth-node/types"
"github.com/status-im/status-go/images"
"github.com/status-im/status-go/multiaccounts/accounts"
"github.com/status-im/status-go/protocol/identity/alias"
"github.com/status-im/status-go/protocol/identity/identicon"
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)
// ContactDeviceInfo is a struct containing information about a particular device owned by a contact
type ContactDeviceInfo struct {
// The installation id of the device
InstallationID string `json:"id"`
// Timestamp represents the last time we received this info
Timestamp int64 `json:"timestamp"`
// FCMToken is to be used for push notifications
FCMToken string `json:"fcmToken"`
}
func (c *Contact) CanonicalName() string {
if c.LocalNickname != "" {
return c.LocalNickname
}
if c.ENSVerified {
return c.Name
}
return c.Alias
}
func (c *Contact) CanonicalImage(profilePicturesVisibility accounts.ProfilePicturesVisibilityType) string {
if profilePicturesVisibility == accounts.ProfilePicturesVisibilityNone || (profilePicturesVisibility == accounts.ProfilePicturesVisibilityContactsOnly && !c.Added) {
return c.Identicon
}
if largeImage, ok := c.Images[images.LargeDimName]; ok {
imageBase64, err := largeImage.GetDataURI()
if err == nil {
return imageBase64
}
}
if thumbImage, ok := c.Images[images.SmallDimName]; ok {
imageBase64, err := thumbImage.GetDataURI()
if err == nil {
return imageBase64
}
}
return c.Identicon
}
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// Contact has information about a "Contact"
type Contact struct {
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// ID of the contact. It's a hex-encoded public key (prefixed with 0x).
ID string `json:"id"`
// Ethereum address of the contact
Address string `json:"address,omitempty"`
// ENS name of contact
Name string `json:"name,omitempty"`
// EnsVerified whether we verified the name of the contact
ENSVerified bool `json:"ensVerified"`
// Generated username name of the contact
Alias string `json:"alias,omitempty"`
// Identicon generated from public key
Identicon string `json:"identicon"`
// LastUpdated is the last time we received an update from the contact
// updates should be discarded if last updated is less than the one stored
LastUpdated uint64 `json:"lastUpdated"`
// LastUpdatedLocally is the last time we updated the contact locally
LastUpdatedLocally uint64 `json:"lastUpdatedLocally"`
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LocalNickname string `json:"localNickname,omitempty"`
Images map[string]images.IdentityImage `json:"images"`
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Added bool `json:"added"`
Blocked bool `json:"blocked"`
HasAddedUs bool `json:"hasAddedUs"`
IsSyncing bool
Removed bool
}
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func (c Contact) PublicKey() (*ecdsa.PublicKey, error) {
b, err := types.DecodeHex(c.ID)
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if err != nil {
return nil, err
}
return crypto.UnmarshalPubkey(b)
}
func (c *Contact) Block() {
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c.Blocked = true
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c.Added = false
}
func (c *Contact) Unblock() {
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c.Blocked = false
}
func (c *Contact) Remove() {
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c.Added = false
c.Removed = true
}
func buildContactFromPkString(pkString string) (*Contact, error) {
publicKeyBytes, err := types.DecodeHex(pkString)
if err != nil {
return nil, err
}
publicKey, err := crypto.UnmarshalPubkey(publicKeyBytes)
if err != nil {
return nil, err
}
return buildContact(pkString, publicKey)
}
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func BuildContactFromPublicKey(publicKey *ecdsa.PublicKey) (*Contact, error) {
id := types.EncodeHex(crypto.FromECDSAPub(publicKey))
return buildContact(id, publicKey)
}
func buildContact(publicKeyString string, publicKey *ecdsa.PublicKey) (*Contact, error) {
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newIdenticon, err := identicon.GenerateBase64(publicKeyString)
if err != nil {
return nil, err
}
contact := &Contact{
ID: publicKeyString,
Alias: alias.GenerateFromPublicKey(publicKey),
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Identicon: newIdenticon,
}
return contact, nil
}
func contactIDFromPublicKey(key *ecdsa.PublicKey) string {
return types.EncodeHex(crypto.FromECDSAPub(key))
}