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token.go
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token.go
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package sudoclient
import (
"context"
"fmt"
"sync"
"time"
"github.com/pkg/errors"
"golang.org/x/oauth2"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
"github.com/sudo-privacy/sudo-sdk-go/protobuf/basic/protobuf/virtualservice/platformpb/jwt"
basiccommon "github.com/sudo-privacy/sudo-sdk-go/protobuf/basic/protobuf/virtualservice/platformpb/service/common"
)
// TokenSource 是对 [credentials.PerRPCCredentials] 的简单封装,每次访问可能触发token刷新。
type TokenSource interface {
credentials.PerRPCCredentials
Close() error
}
type accountSetting struct {
Account string
Password string
}
type userAccountToken struct {
basiccommon.CommonClient
accessToken string
opts *dialOptions
expiry time.Time
refreshToken string
mutex sync.RWMutex
}
// NewUserAccountToken 根据用户名、密码创建tokenSource,endpoint、账号等需要通过opts配置。
func NewUserAccountToken(ctx context.Context, opts ...DialOption) (TokenSource, error) {
o := newDefaultDialOptions()
for _, opt := range opts {
opt.Apply(o)
}
if o.cc == nil {
cc, err := grpc.DialContext(ctx, o.grpcEndPoint, o.grpcOpts...)
if err != nil {
return nil, err
}
o.cc = cc
}
token := &userAccountToken{
CommonClient: basiccommon.NewCommonClient(o.cc),
opts: o,
}
err := token.init(ctx)
if err != nil {
return nil, err
}
return token, nil
}
func (source *userAccountToken) tokenWithContext(ctx context.Context) (*oauth2.Token, error) {
token, err := source.token()
if err != nil || !token.Valid() {
refreshErr := source.refresh(ctx)
if refreshErr != nil {
return nil, refreshErr
}
return source.token()
}
return token, nil
}
func (source *userAccountToken) token() (*oauth2.Token, error) {
source.mutex.RLock()
defer source.mutex.RUnlock()
return &oauth2.Token{
AccessToken: source.accessToken,
RefreshToken: source.refreshToken,
Expiry: source.expiry,
}, nil
}
func (source *userAccountToken) Close() error {
return source.opts.cc.Close()
}
func (source *userAccountToken) init(ctx context.Context) error {
resp, err := source.CommonClient.CreateJwt(ctx, &jwt.CreateJwtRequest{
Account: source.opts.Account,
Password: source.opts.Password,
})
if err != nil {
return errors.Wrap(err, fmt.Sprintf("create jwt failed,account:%s", source.opts.Account))
}
source.mutex.Lock()
defer source.mutex.Unlock()
source.accessToken = resp.Access
source.refreshToken = resp.Refresh
source.expiry = time.Now().Add(source.opts.tokenTimeout)
return nil
}
func (source *userAccountToken) refresh(ctx context.Context) error {
resp, err := source.CommonClient.RefreshJwt(ctx, &jwt.RefreshJwtRequest{
Refresh: source.refreshToken,
})
if err != nil {
// refresh失败,尝试重新登录
err := source.init(ctx)
if err != nil {
return err
}
return err
}
source.mutex.Lock()
defer source.mutex.Unlock()
source.accessToken = resp.Access
source.refreshToken = resp.Refresh
source.expiry = time.Now().Add(source.opts.tokenTimeout)
return nil
}
func (source *userAccountToken) GetRequestMetadata(ctx context.Context, uri ...string) (map[string]string, error) {
token, err := source.tokenWithContext(ctx)
if err != nil {
return nil, err
}
return map[string]string{
"Authorization": token.Type() + " " + token.RefreshToken,
}, nil
}
// 直接访问furnace grpc接口,无需安全证书
func (source *userAccountToken) RequireTransportSecurity() bool {
return false
}