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client.go
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client.go
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package oauth2
import (
"errors"
"net/http"
)
type Client struct {
Endpoint Endpoint
// TokenStorage 和 Token 两个字段正常情况下只用指定一个, 如果两个同时被指定了, 优先使用 TokenStorage
TokenStorage TokenStorage
Token *Token // Client 自动将最新的 Token 更新到此字段, 不管 Token 字段一开始是否被指定!!!
HttpClient *http.Client // 如果 HttpClient == nil 则默认用 http.DefaultClient
}
func (clt *Client) httpClient() *http.Client {
if clt.HttpClient != nil {
return clt.HttpClient
}
return http.DefaultClient
}
// GetToken 获取 Token, autoRefresh 为 true 时如果 Token 过期则自动刷新.
func (clt *Client) GetToken(autoRefresh bool) (tk *Token, err error) {
if clt.TokenStorage != nil {
if tk, err = clt.TokenStorage.Token(); err != nil {
return
}
if tk == nil {
err = errors.New("incorrect TokenStorage.Token implementation")
return
}
clt.Token = tk // update local
} else {
tk = clt.Token
if tk == nil {
err = errors.New("nil TokenStorage and nil Token")
return
}
}
if autoRefresh && tk.Expired() {
return clt.RefreshToken(tk.RefreshToken)
}
return
}
func (clt *Client) putToken(tk *Token) (err error) {
if clt.TokenStorage != nil {
if err = clt.TokenStorage.PutToken(tk); err != nil {
return
}
}
clt.Token = tk
return
}