mercury/web/app/token.go

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2023-09-04 03:33:13 +02:00
package app
import (
"context"
"fmt"
"emperror.dev/errors"
"git.sleepycat.moe/sam/mercury/internal/database"
"github.com/golang-jwt/jwt/v4"
)
func (app *App) TokenToJWT(token database.Token) (string, error) {
t := jwt.NewWithClaims(jwt.SigningMethodHS256, token.ToClaims())
return t.SignedString(app.tokenKey)
}
func (app *App) ParseToken(ctx context.Context, token string) (t database.Token, err error) {
parsed, err := jwt.ParseWithClaims(token, &database.TokenClaims{}, func(t *jwt.Token) (interface{}, error) {
if _, ok := t.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, fmt.Errorf(`unexpected signing method "%v"`, t.Header["alg"])
}
return app.tokenKey, nil
})
if err != nil {
return t, errors.Wrap(err, "parsing token")
}
c, ok := parsed.Claims.(*database.TokenClaims)
if !ok || !parsed.Valid {
return t, fmt.Errorf("unknown claims type %T", parsed.Claims)
}
t, err = app.Token().Get(ctx, c.TokenID)
if err != nil {
return t, errors.Wrap(err, "getting token from database")
}
return t, nil
}