129 lines
3.9 KiB
Go
129 lines
3.9 KiB
Go
package protocol
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import (
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"crypto/ecdsa"
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"encoding/hex"
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"github.com/status-im/status-go/eth-node/crypto"
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"github.com/status-im/status-go/eth-node/types"
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"github.com/status-im/status-go/protocol/identity/alias"
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"github.com/status-im/status-go/protocol/identity/identicon"
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)
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const (
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contactBlocked = ":contact/blocked"
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contactAdded = ":contact/added"
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contactRequestReceived = ":contact/request-received"
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)
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// ContactDeviceInfo is a struct containing information about a particular device owned by a contact
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type ContactDeviceInfo struct {
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// The installation id of the device
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InstallationID string `json:"id"`
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// Timestamp represents the last time we received this info
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Timestamp int64 `json:"timestamp"`
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// FCMToken is to be used for push notifications
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FCMToken string `json:"fcmToken"`
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}
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// Contact has information about a "Contact". A contact is not necessarily one
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// that we added or added us, that's based on SystemTags.
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type Contact struct {
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// ID of the contact. It's a hex-encoded public key (prefixed with 0x).
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ID string `json:"id"`
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// Ethereum address of the contact
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Address string `json:"address,omitempty"`
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// ENS name of contact
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Name string `json:"name,omitempty"`
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// EnsVerified whether we verified the name of the contact
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ENSVerified bool `json:"ensVerified"`
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// EnsVerifiedAt the time we last verified the name
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ENSVerifiedAt uint64 `json:"ensVerifiedAt"`
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// LastENSClockValue is the last clock value of when we
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// received an ENS name for the user
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LastENSClockValue uint64 `json:"lastENSClockValue"`
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// ENSVerificationRetries is how many times we retried the ENS
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ENSVerificationRetries uint64 `json:"ensVerificationRetries"`
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// Generated username name of the contact
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Alias string `json:"alias,omitempty"`
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// Identicon generated from public key
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Identicon string `json:"identicon"`
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// Photo is the base64 encoded photo
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Photo string `json:"photoPath,omitempty"`
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// LastUpdated is the last time we received an update from the contact
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// updates should be discarded if last updated is less than the one stored
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LastUpdated uint64 `json:"lastUpdated"`
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// SystemTags contains information about whether we blocked/added/have been
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// added.
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SystemTags []string `json:"systemTags"`
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DeviceInfo []ContactDeviceInfo `json:"deviceInfo"`
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TributeToTalk string `json:"tributeToTalk,omitempty"`
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}
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func (c Contact) PublicKey() (*ecdsa.PublicKey, error) {
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b, err := types.DecodeHex(c.ID)
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if err != nil {
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return nil, err
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}
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return crypto.UnmarshalPubkey(b)
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}
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func (c Contact) IsAdded() bool {
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return existsInStringSlice(c.SystemTags, contactAdded)
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}
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func (c Contact) HasBeenAdded() bool {
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return existsInStringSlice(c.SystemTags, contactRequestReceived)
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}
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func (c Contact) IsBlocked() bool {
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return existsInStringSlice(c.SystemTags, contactBlocked)
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}
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func (c *Contact) ResetENSVerification(clock uint64, name string) {
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c.ENSVerifiedAt = 0
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c.ENSVerified = false
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c.ENSVerificationRetries = 0
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c.LastENSClockValue = clock
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c.Name = name
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}
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// existsInStringSlice checks if a string is in a set.
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func existsInStringSlice(set []string, find string) bool {
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for _, s := range set {
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if s == find {
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return true
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}
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}
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return false
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}
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func buildContact(publicKey *ecdsa.PublicKey) (*Contact, error) {
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id := "0x" + hex.EncodeToString(crypto.FromECDSAPub(publicKey))
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identicon, err := identicon.GenerateBase64(id)
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if err != nil {
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return nil, err
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}
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contact := &Contact{
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ID: id,
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Alias: alias.GenerateFromPublicKey(publicKey),
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Identicon: identicon,
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}
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return contact, nil
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}
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// HasCustomFields returns whether the the contact has any field that is valuable
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// to the client other than the computed name/image
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func (c Contact) HasCustomFields() bool {
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return c.IsAdded() || c.HasBeenAdded() || c.IsBlocked() || c.ENSVerified
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}
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func contactIDFromPublicKey(key *ecdsa.PublicKey) string {
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return types.EncodeHex(crypto.FromECDSAPub(key))
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}
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