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8821a3856d
* feat: 获取稳定版接口调用凭据 * Update default_access_token.go * fix: format code --------- Co-authored-by: ctr <orinfy@foxmail.com> Co-authored-by: houseme <housemecn@gmail.com>
246 lines
8.0 KiB
Go
246 lines
8.0 KiB
Go
package credential
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import (
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"context"
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"encoding/json"
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"fmt"
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"sync"
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"time"
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"github.com/silenceper/wechat/v2/cache"
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"github.com/silenceper/wechat/v2/util"
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)
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const (
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// accessTokenURL 获取access_token的接口
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accessTokenURL = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=%s&secret=%s"
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// stableAccessTokenURL 获取稳定版access_token的接口
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stableAccessTokenURL = "https://api.weixin.qq.com/cgi-bin/stable_token"
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// workAccessTokenURL 企业微信获取access_token的接口
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workAccessTokenURL = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=%s&corpsecret=%s"
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// CacheKeyOfficialAccountPrefix 微信公众号cache key前缀
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CacheKeyOfficialAccountPrefix = "gowechat_officialaccount_"
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// CacheKeyMiniProgramPrefix 小程序cache key前缀
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CacheKeyMiniProgramPrefix = "gowechat_miniprogram_"
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// CacheKeyWorkPrefix 企业微信cache key前缀
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CacheKeyWorkPrefix = "gowechat_work_"
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)
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// DefaultAccessToken 默认AccessToken 获取
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type DefaultAccessToken struct {
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appID string
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appSecret string
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cacheKeyPrefix string
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cache cache.Cache
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accessTokenLock *sync.Mutex
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}
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// NewDefaultAccessToken new DefaultAccessToken
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func NewDefaultAccessToken(appID, appSecret, cacheKeyPrefix string, cache cache.Cache) AccessTokenContextHandle {
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if cache == nil {
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panic("cache is ineed")
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}
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return &DefaultAccessToken{
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appID: appID,
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appSecret: appSecret,
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cache: cache,
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cacheKeyPrefix: cacheKeyPrefix,
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accessTokenLock: new(sync.Mutex),
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}
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}
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// ResAccessToken struct
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type ResAccessToken struct {
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util.CommonError
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AccessToken string `json:"access_token"`
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ExpiresIn int64 `json:"expires_in"`
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}
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// GetAccessToken 获取access_token,先从cache中获取，没有则从服务端获取
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func (ak *DefaultAccessToken) GetAccessToken() (accessToken string, err error) {
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return ak.GetAccessTokenContext(context.Background())
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}
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// GetAccessTokenContext 获取access_token,先从cache中获取，没有则从服务端获取
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func (ak *DefaultAccessToken) GetAccessTokenContext(ctx context.Context) (accessToken string, err error) {
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// 先从cache中取
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accessTokenCacheKey := fmt.Sprintf("%s_access_token_%s", ak.cacheKeyPrefix, ak.appID)
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if val := ak.cache.Get(accessTokenCacheKey); val != nil {
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return val.(string), nil
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}
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// 加上lock，是为了防止在并发获取token时，cache刚好失效，导致从微信服务器上获取到不同token
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ak.accessTokenLock.Lock()
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defer ak.accessTokenLock.Unlock()
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// 双检，防止重复从微信服务器获取
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if val := ak.cache.Get(accessTokenCacheKey); val != nil {
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return val.(string), nil
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}
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// cache失效，从微信服务器获取
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var resAccessToken ResAccessToken
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if resAccessToken, err = GetTokenFromServerContext(ctx, fmt.Sprintf(accessTokenURL, ak.appID, ak.appSecret)); err != nil {
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return
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}
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if err = ak.cache.Set(accessTokenCacheKey, resAccessToken.AccessToken, time.Duration(resAccessToken.ExpiresIn-1500)*time.Second); err != nil {
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return
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}
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accessToken = resAccessToken.AccessToken
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return
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}
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// StableAccessToken 获取稳定版接口调用凭据(与getAccessToken获取的调用凭证完全隔离，互不影响)
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// 不强制更新access_token,可用于不同环境不同服务而不需要分布式锁以及公用缓存，避免access_token争抢
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// https://developers.weixin.qq.com/miniprogram/dev/OpenApiDoc/mp-access-token/getStableAccessToken.html
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type StableAccessToken struct {
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appID string
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appSecret string
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cacheKeyPrefix string
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cache cache.Cache
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}
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// NewStableAccessToken new StableAccessToken
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func NewStableAccessToken(appID, appSecret, cacheKeyPrefix string, cache cache.Cache) AccessTokenContextHandle {
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if cache == nil {
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panic("cache is need")
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}
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return &StableAccessToken{
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appID: appID,
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appSecret: appSecret,
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cache: cache,
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cacheKeyPrefix: cacheKeyPrefix,
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}
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}
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// GetAccessToken 获取access_token,先从cache中获取，没有则从服务端获取
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func (ak *StableAccessToken) GetAccessToken() (accessToken string, err error) {
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return ak.GetAccessTokenContext(context.Background())
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}
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// GetAccessTokenContext 获取access_token,先从cache中获取，没有则从服务端获取
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func (ak *StableAccessToken) GetAccessTokenContext(ctx context.Context) (accessToken string, err error) {
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// 先从cache中取
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accessTokenCacheKey := fmt.Sprintf("%s_stable_access_token_%s", ak.cacheKeyPrefix, ak.appID)
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if val := ak.cache.Get(accessTokenCacheKey); val != nil {
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return val.(string), nil
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}
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// cache失效，从微信服务器获取
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var resAccessToken ResAccessToken
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resAccessToken, err = ak.GetAccessTokenDirectly(ctx, false)
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if err != nil {
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return
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}
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expires := resAccessToken.ExpiresIn - 300
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_ = ak.cache.Set(accessTokenCacheKey, resAccessToken.AccessToken, time.Duration(expires)*time.Second)
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accessToken = resAccessToken.AccessToken
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return
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}
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// GetAccessTokenDirectly 从微信获取access_token
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func (ak *StableAccessToken) GetAccessTokenDirectly(ctx context.Context, forceRefresh bool) (resAccessToken ResAccessToken, err error) {
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b, err := util.PostJSONContext(ctx, stableAccessTokenURL, map[string]interface{}{
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"grant_type": "client_credential",
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"appid": ak.appID,
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"secret": ak.appSecret,
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"force_refresh": forceRefresh,
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})
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if err != nil {
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return
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}
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if err = json.Unmarshal(b, &resAccessToken); err != nil {
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return
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}
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if resAccessToken.ErrCode != 0 {
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err = fmt.Errorf("get stable access_token error : errcode=%v , errormsg=%v", resAccessToken.ErrCode, resAccessToken.ErrMsg)
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return
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}
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return
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}
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// WorkAccessToken 企业微信AccessToken 获取
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type WorkAccessToken struct {
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CorpID string
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CorpSecret string
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cacheKeyPrefix string
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cache cache.Cache
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accessTokenLock *sync.Mutex
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}
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// NewWorkAccessToken new WorkAccessToken
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func NewWorkAccessToken(corpID, corpSecret, cacheKeyPrefix string, cache cache.Cache) AccessTokenContextHandle {
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if cache == nil {
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panic("cache the not exist")
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}
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return &WorkAccessToken{
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CorpID: corpID,
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CorpSecret: corpSecret,
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cache: cache,
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cacheKeyPrefix: cacheKeyPrefix,
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accessTokenLock: new(sync.Mutex),
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}
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}
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// GetAccessToken 企业微信获取access_token,先从cache中获取，没有则从服务端获取
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func (ak *WorkAccessToken) GetAccessToken() (accessToken string, err error) {
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return ak.GetAccessTokenContext(context.Background())
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}
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// GetAccessTokenContext 企业微信获取access_token,先从cache中获取，没有则从服务端获取
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func (ak *WorkAccessToken) GetAccessTokenContext(ctx context.Context) (accessToken string, err error) {
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// 加上lock，是为了防止在并发获取token时，cache刚好失效，导致从微信服务器上获取到不同token
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ak.accessTokenLock.Lock()
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defer ak.accessTokenLock.Unlock()
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accessTokenCacheKey := fmt.Sprintf("%s_access_token_%s", ak.cacheKeyPrefix, ak.CorpID)
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val := ak.cache.Get(accessTokenCacheKey)
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if val != nil {
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accessToken = val.(string)
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return
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}
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// cache失效，从微信服务器获取
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var resAccessToken ResAccessToken
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resAccessToken, err = GetTokenFromServerContext(ctx, fmt.Sprintf(workAccessTokenURL, ak.CorpID, ak.CorpSecret))
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if err != nil {
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return
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}
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expires := resAccessToken.ExpiresIn - 1500
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err = ak.cache.Set(accessTokenCacheKey, resAccessToken.AccessToken, time.Duration(expires)*time.Second)
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if err != nil {
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return
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}
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accessToken = resAccessToken.AccessToken
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return
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}
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// GetTokenFromServer 强制从微信服务器获取token
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func GetTokenFromServer(url string) (resAccessToken ResAccessToken, err error) {
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return GetTokenFromServerContext(context.Background(), url)
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}
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// GetTokenFromServerContext 强制从微信服务器获取token
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func GetTokenFromServerContext(ctx context.Context, url string) (resAccessToken ResAccessToken, err error) {
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var body []byte
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body, err = util.HTTPGetContext(ctx, url)
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if err != nil {
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return
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}
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err = json.Unmarshal(body, &resAccessToken)
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if err != nil {
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return
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}
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if resAccessToken.ErrCode != 0 {
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err = fmt.Errorf("get access_token error : errcode=%v , errormsg=%v", resAccessToken.ErrCode, resAccessToken.ErrMsg)
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return
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}
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return
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}
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