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package identity
import (
"crypto/sha256"
"encoding/json"
"fmt"
"strings"
"github.com/MichaelMure/git-bug/repository"
"github.com/MichaelMure/git-bug/util/lamport"
"github.com/MichaelMure/git-bug/util/text"
"github.com/MichaelMure/git-bug/util/timestamp"
)
var _ Interface = &Bare{}
// Bare is a very minimal identity, designed to be fully embedded directly along
// other data.
//
// in particular, this identity is designed to be compatible with the handling of
// identities in the early version of git-bug.
type Bare struct {
id string
name string
email string
login string
avatarUrl string
}
func NewBare(name string, email string) *Bare {
return &Bare{name: name, email: email}
}
func NewBareFull(name string, email string, login string, avatarUrl string) *Bare {
return &Bare{name: name, email: email, login: login, avatarUrl: avatarUrl}
}
type bareIdentityJSON struct {
Name string `json:"name,omitempty"`
Email string `json:"email,omitempty"`
Login string `json:"login,omitempty"`
AvatarUrl string `json:"avatar_url,omitempty"`
}
func (i *Bare) MarshalJSON() ([]byte, error) {
return json.Marshal(bareIdentityJSON{
Name: i.name,
Email: i.email,
Login: i.login,
AvatarUrl: i.avatarUrl,
})
}
func (i *Bare) UnmarshalJSON(data []byte) error {
aux := bareIdentityJSON{}
if err := json.Unmarshal(data, &aux); err != nil {
return err
}
i.name = aux.Name
i.email = aux.Email
i.login = aux.Login
i.avatarUrl = aux.AvatarUrl
return nil
}
// Id return the Identity identifier
func (i *Bare) Id() string {
// We don't have a proper ID at hand, so let's hash all the data to get one.
// Hopefully the
if i.id != "" {
return i.id
}
data, err := json.Marshal(i)
if err != nil {
panic(err)
}
h := fmt.Sprintf("%x", sha256.New().Sum(data)[:16])
i.id = string(h)
return i.id
}
// HumanId return the Identity identifier truncated for human consumption
func (i *Bare) HumanId() string {
return FormatHumanID(i.Id())
}
// Name return the last version of the name
func (i *Bare) Name() string {
return i.name
}
// Email return the last version of the email
func (i *Bare) Email() string {
return i.email
}
// Login return the last version of the login
func (i *Bare) Login() string {
return i.login
}
// AvatarUrl return the last version of the Avatar URL
func (i *Bare) AvatarUrl() string {
return i.avatarUrl
}
// Keys return the last version of the valid keys
func (i *Bare) Keys() []Key {
return []Key{}
}
// ValidKeysAtTime return the set of keys valid at a given lamport time
func (i *Bare) ValidKeysAtTime(time lamport.Time) []Key {
return []Key{}
}
// DisplayName return a non-empty string to display, representing the
// identity, based on the non-empty values.
func (i *Bare) DisplayName() string {
switch {
case i.name == "" && i.login != "":
return i.login
case i.name != "" && i.login == "":
return i.name
case i.name != "" && i.login != "":
return fmt.Sprintf("%s (%s)", i.name, i.login)
}
panic("invalid person data")
}
// Validate check if the Identity data is valid
func (i *Bare) Validate() error {
if text.Empty(i.name) && text.Empty(i.login) {
return fmt.Errorf("either name or login should be set")
}
if strings.Contains(i.name, "\n") {
return fmt.Errorf("name should be a single line")
}
if !text.Safe(i.name) {
return fmt.Errorf("name is not fully printable")
}
if strings.Contains(i.login, "\n") {
return fmt.Errorf("login should be a single line")
}
if !text.Safe(i.login) {
return fmt.Errorf("login is not fully printable")
}
if strings.Contains(i.email, "\n") {
return fmt.Errorf("email should be a single line")
}
if !text.Safe(i.email) {
return fmt.Errorf("email is not fully printable")
}
if i.avatarUrl != "" && !text.ValidUrl(i.avatarUrl) {
return fmt.Errorf("avatarUrl is not a valid URL")
}
return nil
}
// Write the identity into the Repository. In particular, this ensure that
// the Id is properly set.
func (i *Bare) Commit(repo repository.ClockedRepo) error {
// Nothing to do, everything is directly embedded
return nil
}
// If needed, write the identity into the Repository. In particular, this
// ensure that the Id is properly set.
func (i *Bare) CommitAsNeeded(repo repository.ClockedRepo) error {
// Nothing to do, everything is directly embedded
return nil
}
// IsProtected return true if the chain of git commits started to be signed.
// If that's the case, only signed commit with a valid key for this identity can be added.
func (i *Bare) IsProtected() bool {
return false
}
// LastModificationLamportTime return the Lamport time at which the last version of the identity became valid.
func (i *Bare) LastModificationLamport() lamport.Time {
return 0
}
// LastModification return the timestamp at which the last version of the identity became valid.
func (i *Bare) LastModification() timestamp.Timestamp {
return 0
}
|
