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package core
import (
"crypto/sha256"
"fmt"
"regexp"
"strconv"
"strings"
"time"
"github.com/MichaelMure/git-bug/entity"
"github.com/araddon/dateparse"
"github.com/MichaelMure/git-bug/repository"
)
const (
tokenConfigKeyPrefix = "git-bug.token"
tokenValueKey = "value"
tokenTargetKey = "target"
tokenCreateTimeKey = "createtime"
)
// Token holds an API access token data
type Token struct {
ID entity.Id
Value string
Target string
CreateTime time.Time
}
// NewToken instantiate a new token
func NewToken(value, target string) *Token {
token := &Token{
Value: value,
Target: target,
CreateTime: time.Now(),
}
token.ID = entity.Id(hashToken(token))
return token
}
func hashToken(token *Token) string {
sum := sha256.Sum256([]byte(token.Value))
return fmt.Sprintf("%x", sum)
}
// Validate ensure token important fields are valid
func (t *Token) Validate() error {
if t.ID == "" {
return fmt.Errorf("missing id")
}
if t.Value == "" {
return fmt.Errorf("missing value")
}
if t.Target == "" {
return fmt.Errorf("missing target")
}
if t.CreateTime.Equal(time.Time{}) {
return fmt.Errorf("missing creation time")
}
if _, ok := bridgeImpl[t.Target]; !ok {
return fmt.Errorf("unknown target")
}
return nil
}
// LoadToken loads a token from repo config
func LoadToken(repo repository.RepoCommon, id string) (*Token, error) {
keyPrefix := fmt.Sprintf("git-bug.token.%s.", id)
// read token config pairs
configs, err := repo.GlobalConfig().ReadAll(keyPrefix)
if err != nil {
return nil, err
}
// trim key prefix
for key, value := range configs {
delete(configs, key)
newKey := strings.TrimPrefix(key, keyPrefix)
configs[newKey] = value
}
token := &Token{ID: entity.Id(id)}
var ok bool
token.Value, ok = configs[tokenValueKey]
if !ok {
return nil, fmt.Errorf("empty token value")
}
token.Target, ok = configs[tokenTargetKey]
if !ok {
return nil, fmt.Errorf("empty token key")
}
createTime, ok := configs[tokenCreateTimeKey]
if !ok {
return nil, fmt.Errorf("missing createtime key")
}
token.CreateTime, err = dateparse.ParseLocal(createTime)
if err != nil {
return nil, err
}
return token, nil
}
// ListTokens return a map representing the stored tokens in the repo config and global config
// along with their type (global: true, local:false)
func ListTokens(repo repository.RepoCommon) ([]string, error) {
configs, err := repo.GlobalConfig().ReadAll(tokenConfigKeyPrefix + ".")
if err != nil {
return nil, err
}
re, err := regexp.Compile(tokenConfigKeyPrefix + `.([^.]+)`)
if err != nil {
panic(err)
}
set := make(map[string]interface{})
for key := range configs {
res := re.FindStringSubmatch(key)
if res == nil {
continue
}
set[res[1]] = nil
}
result := make([]string, len(set))
i := 0
for key := range set {
result[i] = key
i++
}
return result, nil
}
// StoreToken stores a token in the repo config
func StoreToken(repo repository.RepoCommon, token *Token) error {
storeValueKey := fmt.Sprintf("git-bug.token.%s.%s", token.ID.String(), tokenValueKey)
err := repo.GlobalConfig().StoreString(storeValueKey, token.Value)
if err != nil {
return err
}
storeTargetKey := fmt.Sprintf("git-bug.token.%s.%s", token.ID.String(), tokenTargetKey)
err = repo.GlobalConfig().StoreString(storeTargetKey, token.Target)
if err != nil {
return err
}
createTimeKey := fmt.Sprintf("git-bug.token.%s.%s", token.ID.String(), tokenCreateTimeKey)
return repo.GlobalConfig().StoreString(createTimeKey, strconv.Itoa(int(token.CreateTime.Unix())))
}
// RemoveToken removes a token from the repo config
func RemoveToken(repo repository.RepoCommon, id string) error {
keyPrefix := fmt.Sprintf("git-bug.token.%s", id)
return repo.GlobalConfig().RemoveAll(keyPrefix)
}
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