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// tokens.go
package main
import (
"crypto/rand"
"encoding/base64"
"encoding/json"
"os"
)
type TokenConfig struct {
Token string `json:"token"` // raw token; in real life you want a hash
Name string `json:"name"` // internal name ("jeff", etc.)
Revoked bool `json:"revoked,omitempty"`
}
func loadTokens(path string) (map[string]*TokenConfig, error) {
f, err := os.Open(path)
if err != nil {
return nil, err
}
defer f.Close()
var list []TokenConfig
if err := json.NewDecoder(f).Decode(&list); err != nil {
return nil, err
}
m := make(map[string]*TokenConfig)
for i := range list {
tc := list[i]
m[tc.Token] = &tc
}
return m, nil
}
func saveTokens(path string, tokens map[string]*TokenConfig) error {
f, err := os.Create(path)
if err != nil {
return err
}
defer f.Close()
enc := json.NewEncoder(f)
enc.SetIndent("", " ")
var list []TokenConfig
for _, tc := range tokens {
list = append(list, *tc)
}
return enc.Encode(list)
}
func generateToken() (string, error) {
b := make([]byte, 32)
if _, err := rand.Read(b); err != nil {
return "", err
}
return "brg_" + base64.RawURLEncoding.EncodeToString(b), nil
}
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