增加企业微信 企业内部开发模块 (#418)

* 增加小程序内容安全接口

* 内容安全接口 按照golint规范进行优化

* 内容安全接口 按照golint规范进行优化

* 删除CheckImage中的输出代码

* 小程序内容安全接口

* 小程序内容安全接口

* 小程序内容安全接口
1:修改返回值 改为error异常统一返回

* 增加企业微信 企业内部开发模块
1:授权登录

* 增加企业微信 企业内部开发模块

* 修改参数为小写

* 优化参数格式

Co-authored-by: root <admin@example.com>

work/config/config.go

@@ -0,0 +1,14 @@
+// Package config 企业微信config配置
+package config
+
+import (
+	"github.com/silenceper/wechat/v2/cache"
+)
+
+// Config config for 企业微信
+type Config struct {
+	CorpID     string `json:"corp_id"`     // corp_id
+	CorpSecret string `json:"corp_secret"` // corp_secret
+	AgentID    string `json:"agent_id"`    // agent_id
+	Cache      cache.Cache
+}

work/context/context.go

@@ -0,0 +1,12 @@
+package context
+
+import (
+	"github.com/silenceper/wechat/v2/credential"
+	"github.com/silenceper/wechat/v2/work/config"
+)
+
+// Context struct
+type Context struct {
+	*config.Config
+	credential.AccessTokenHandle
+}

work/oauth/oauth.go

@@ -0,0 +1,87 @@
+package oauth
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/url"
+
+	"github.com/silenceper/wechat/v2/util"
+	"github.com/silenceper/wechat/v2/work/context"
+)
+
+//Oauth auth
+type Oauth struct {
+	*context.Context
+}
+
+var (
+	//oauthTargetURL 企业微信内跳转地址
+	oauthTargetURL = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=%s&redirect_uri=%s&response_type=code&scope=snsapi_base&state=STATE#wechat_redirect"
+	//oauthUserInfoURL 获取用户信息地址
+	oauthUserInfoURL = "https://qyapi.weixin.qq.com/cgi-bin/user/getuserinfo?access_token=%s&code=%s"
+	//oauthQrContentTargetURL 构造独立窗口登录二维码
+	oauthQrContentTargetURL = "https://open.work.weixin.qq.com/wwopen/sso/qrConnect?appid=%s&agentid=%s&redirect_uri=%s&state=%s"
+)
+
+//NewOauth new init oauth
+func NewOauth(ctx *context.Context) *Oauth {
+	return &Oauth{
+		ctx,
+	}
+}
+
+//GetTargetURL 获取授权地址
+func (ctr *Oauth) GetTargetURL(callbackURL string) string {
+	//url encode
+	urlStr := url.QueryEscape(callbackURL)
+	return fmt.Sprintf(
+		oauthTargetURL,
+		ctr.CorpID,
+		urlStr,
+	)
+}
+
+//GetQrContentTargetURL 构造独立窗口登录二维码
+func (ctr *Oauth) GetQrContentTargetURL(callbackURL string) string {
+	//url encode
+	urlStr := url.QueryEscape(callbackURL)
+	return fmt.Sprintf(
+		oauthQrContentTargetURL,
+		ctr.CorpID,
+		ctr.AgentID,
+		urlStr,
+		util.RandomStr(16),
+	)
+}
+
+//ResUserInfo 返回得用户信息
+type ResUserInfo struct {
+	util.CommonError
+	//当用户为企业成员时返回
+	UserID   string `json:"UserId"`
+	DeviceID string `json:"DeviceId"`
+	//非企业成员授权时返回
+	OpenID string `json:"OpenId"`
+}
+
+//UserFromCode 根据code获取用户信息
+func (ctr *Oauth) UserFromCode(code string) (result ResUserInfo, err error) {
+	var accessToken string
+	accessToken, err = ctr.GetAccessToken()
+	if err != nil {
+		return
+	}
+	var response []byte
+	response, err = util.HTTPGet(
+		fmt.Sprintf(oauthUserInfoURL, accessToken, code),
+	)
+	if err != nil {
+		return
+	}
+	err = json.Unmarshal(response, &result)
+	if result.ErrCode != 0 {
+		err = fmt.Errorf("GetUserAccessToken error : errcode=%v , errmsg=%v", result.ErrCode, result.ErrMsg)
+		return
+	}
+	return
+}

work/work.go

@@ -0,0 +1,33 @@
+package work
+
+import (
+	"github.com/silenceper/wechat/v2/credential"
+	"github.com/silenceper/wechat/v2/work/config"
+	"github.com/silenceper/wechat/v2/work/context"
+	"github.com/silenceper/wechat/v2/work/oauth"
+)
+
+// Work 企业微信
+type Work struct {
+	ctx *context.Context
+}
+
+//NewWork init work
+func NewWork(cfg *config.Config) *Work {
+	defaultAkHandle := credential.NewWorkAccessToken(cfg.CorpID, cfg.CorpSecret, credential.CacheKeyWorkPrefix, cfg.Cache)
+	ctx := &context.Context{
+		Config:            cfg,
+		AccessTokenHandle: defaultAkHandle,
+	}
+	return &Work{ctx: ctx}
+}
+
+//GetContext get Context
+func (wk *Work) GetContext() *context.Context {
+	return wk.ctx
+}
+
+//GetOauth get oauth
+func (wk *Work) GetOauth() *oauth.Oauth {
+	return oauth.NewOauth(wk.ctx)
+}