Create & Init Project...

app/interface/main/web-goblin/dao/wechat/BUILD

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+package(default_visibility = ["//visibility:public"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_test",
+    "go_library",
+)
+
+go_test(
+    name = "go_default_test",
+    srcs = [
+        "dao_test.go",
+        "qrcode_test.go",
+    ],
+    embed = [":go_default_library"],
+    rundir = ".",
+    tags = ["automanaged"],
+    deps = [
+        "//app/interface/main/web-goblin/conf:go_default_library",
+        "//app/interface/main/web-goblin/model/wechat:go_default_library",
+        "//library/ecode:go_default_library",
+        "//vendor/github.com/smartystreets/goconvey/convey:go_default_library",
+    ],
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "cache.go",
+        "dao.cache.go",
+        "dao.go",
+        "qrcode.go",
+    ],
+    importpath = "go-common/app/interface/main/web-goblin/dao/wechat",
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+    deps = [
+        "//app/interface/main/web-goblin/conf:go_default_library",
+        "//app/interface/main/web-goblin/model/wechat:go_default_library",
+        "//library/cache:go_default_library",
+        "//library/cache/redis:go_default_library",
+        "//library/ecode:go_default_library",
+        "//library/log:go_default_library",
+        "//library/net/http/blademaster:go_default_library",
+        "//library/net/metadata:go_default_library",
+        "//library/stat/prom:go_default_library",
+    ],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)

app/interface/main/web-goblin/dao/wechat/cache.go

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+package wechat
+
+import (
+	"context"
+
+	"go-common/app/interface/main/web-goblin/model/wechat"
+)
+
+//go:generate $GOPATH/src/go-common/app/tool/cache/gen
+type _cache interface {
+	// cache
+	AccessToken(c context.Context) (*wechat.AccessToken, error)
+}

app/interface/main/web-goblin/dao/wechat/dao.cache.go

@@ -0,0 +1,49 @@
+// Code generated by $GOPATH/src/go-common/app/tool/cache/gen. DO NOT EDIT.
+
+/*
+  Package wechat is a generated cache proxy package.
+  It is generated from:
+  type _cache interface {
+		// cache
+		AccessToken(c context.Context) (*wechat.AccessToken, error)
+	}
+*/
+
+package wechat
+
+import (
+	"context"
+
+	"go-common/app/interface/main/web-goblin/model/wechat"
+	"go-common/library/net/metadata"
+	"go-common/library/stat/prom"
+)
+
+var _ _cache
+
+// AccessToken get data from cache if miss will call source method, then add to cache.
+func (d *Dao) AccessToken(c context.Context) (res *wechat.AccessToken, err error) {
+	addCache := true
+	res, err = d.CacheAccessToken(c)
+	if err != nil {
+		addCache = false
+		err = nil
+	}
+	if res != nil {
+		prom.CacheHit.Incr("AccessToken")
+		return
+	}
+	prom.CacheMiss.Incr("AccessToken")
+	res, err = d.RawAccessToken(c)
+	if err != nil {
+		return
+	}
+	var miss = res
+	if !addCache {
+		return
+	}
+	d.cache.Save(func() {
+		d.AddCacheAccessToken(metadata.WithContext(c), miss)
+	})
+	return
+}

app/interface/main/web-goblin/dao/wechat/dao.go

@@ -0,0 +1,36 @@
+package wechat
+
+import (
+	"go-common/app/interface/main/web-goblin/conf"
+	"go-common/library/cache"
+	"go-common/library/cache/redis"
+	bm "go-common/library/net/http/blademaster"
+)
+
+// Dao dao struct.
+type Dao struct {
+	// config
+	c *conf.Config
+	// redis
+	redis *redis.Pool
+	// httpClient
+	httpClient *bm.Client
+	// url
+	wxAccessTokenURL string
+	wxQrcodeURL      string
+	cache            *cache.Cache
+}
+
+// New new dao.
+func New(c *conf.Config) (d *Dao) {
+	d = &Dao{
+		// config
+		c:          c,
+		redis:      redis.NewPool(c.Redis.Config),
+		httpClient: bm.NewClient(c.HTTPClient),
+		cache:      cache.New(1, 1024),
+	}
+	d.wxAccessTokenURL = d.c.Host.Wechat + _accessTokenURI
+	d.wxQrcodeURL = d.c.Host.Wechat + _qrcodeURI
+	return
+}

app/interface/main/web-goblin/dao/wechat/dao_test.go

@@ -0,0 +1,35 @@
+package wechat
+
+import (
+	"flag"
+	"os"
+	"testing"
+
+	"go-common/app/interface/main/web-goblin/conf"
+)
+
+var (
+	d *Dao
+)
+
+func TestMain(m *testing.M) {
+	if os.Getenv("DEPLOY_ENV") != "" {
+		flag.Set("app_id", "main.web-svr.web-goblin")
+		flag.Set("conf_token", "b2850ed0834343a9e435809857f5670d")
+		flag.Set("tree_id", "41730")
+		flag.Set("conf_version", "docker-1")
+		flag.Set("deploy_env", "uat")
+		flag.Set("conf_host", "config.bilibili.co")
+		flag.Set("conf_path", "/tmp")
+		flag.Set("region", "sh")
+		flag.Set("zone", "sh001")
+	} else {
+		flag.Set("conf", "../../cmd/web-goblin-test.toml")
+	}
+	flag.Parse()
+	if err := conf.Init(); err != nil {
+		panic(err)
+	}
+	d = New(conf.Conf)
+	os.Exit(m.Run())
+}

app/interface/main/web-goblin/dao/wechat/qrcode.go

@@ -0,0 +1,137 @@
+package wechat
+
+import (
+	"context"
+	"encoding/json"
+	"net/http"
+	"net/url"
+	"strings"
+
+	"go-common/app/interface/main/web-goblin/model/wechat"
+	"go-common/library/cache/redis"
+	"go-common/library/ecode"
+	"go-common/library/log"
+)
+
+const (
+	_accessTokenKey = "a_t_k"
+	_accessTokenURI = "/cgi-bin/token"
+	_qrcodeURI      = "/wxa/getwxacodeunlimit"
+)
+
+// RawAccessToken get wechat access token.
+func (d *Dao) RawAccessToken(c context.Context) (data *wechat.AccessToken, err error) {
+	params := url.Values{}
+	params.Set("grant_type", "client_credential")
+	params.Set("appid", d.c.Wechat.AppID)
+	params.Set("secret", d.c.Wechat.Secret)
+	var req *http.Request
+	if req, err = http.NewRequest(http.MethodGet, d.wxAccessTokenURL+"?"+params.Encode(), nil); err != nil {
+		log.Error("AccessToken http.NewRequest error(%v)", err)
+		return
+	}
+	var res struct {
+		Errcode     int    `json:"errcode"`
+		Errmsg      string `json:"errmsg"`
+		AccessToken string `json:"access_token"`
+		ExpiresIN   int64  `json:"expires_in"`
+	}
+	if err = d.httpClient.Do(c, req, &res); err != nil {
+		log.Error("AccessToken d.httpClient.Do error(%v)", err)
+		return
+	}
+	if res.Errcode != ecode.OK.Code() {
+		log.Error("AccessToken errcode error(%d) msg(%s)", res.Errcode, res.Errmsg)
+		err = ecode.RequestErr
+		return
+	}
+	data = &wechat.AccessToken{AccessToken: res.AccessToken, ExpiresIn: res.ExpiresIN}
+	return
+}
+
+// Qrcode get qrcode.
+func (d *Dao) Qrcode(c context.Context, accessToken, arg string) (qrcode []byte, err error) {
+	var (
+		req     *http.Request
+		bs      []byte
+		jsonErr error
+	)
+	params := url.Values{}
+	params.Set("access_token", accessToken)
+	if req, err = http.NewRequest(http.MethodPost, d.wxQrcodeURL+"?"+params.Encode(), strings.NewReader(arg)); err != nil {
+		log.Error("Qrcode http.NewRequest error(%v)", err)
+		return
+	}
+	if bs, err = d.httpClient.Raw(c, req); err != nil {
+		log.Error("Qrcode d.httpClient.Do error(%v)", err)
+		return
+	}
+	var res struct {
+		Errcode int    `json:"errcode"`
+		Errmsg  string `json:"errmsg"`
+	}
+	if jsonErr = json.Unmarshal(bs, &res); jsonErr == nil && res.Errcode != ecode.OK.Code() {
+		log.Error("Qrcode errcode error(%d) msg(%s)", res.Errcode, res.Errmsg)
+		err = ecode.RequestErr
+		return
+	}
+	qrcode = bs
+	return
+}
+
+// CacheAccessToken cache access token
+func (d *Dao) CacheAccessToken(c context.Context) (data *wechat.AccessToken, err error) {
+	var (
+		value []byte
+		key   = _accessTokenKey
+		conn  = d.redis.Get(c)
+	)
+	defer conn.Close()
+	if value, err = redis.Bytes(conn.Do("GET", key)); err != nil {
+		if err == redis.ErrNil {
+			err = nil
+		} else {
+			log.Error("CacheAccessToken conn.Do(GET, %s) error(%v)", key, err)
+		}
+		return
+	}
+	data = new(wechat.AccessToken)
+	if err = json.Unmarshal(value, &data); err != nil {
+		log.Error("CacheAccessToken json.Unmarshal(%v) error(%v)", value, err)
+	}
+	return
+}
+
+// AddCacheAccessToken add access token cache
+func (d *Dao) AddCacheAccessToken(c context.Context, data *wechat.AccessToken) (err error) {
+	var (
+		bs   []byte
+		key  = _accessTokenKey
+		conn = d.redis.Get(c)
+	)
+	defer conn.Close()
+	if bs, err = json.Marshal(data); err != nil {
+		log.Error("AddCacheAccessToken json.Marshal(%v) error (%v)", data, err)
+		return
+	}
+	if err = conn.Send("SET", key, bs); err != nil {
+		log.Error("conn.Send(SET, %s, %s) error(%v)", key, string(bs), err)
+		return
+	}
+	expire := data.ExpiresIn - 60
+	if err = conn.Send("EXPIRE", key, expire); err != nil {
+		log.Error("conn.Send(Expire, %s, %d) error(%v)", key, expire, err)
+		return
+	}
+	if err = conn.Flush(); err != nil {
+		log.Error("conn.Flush error(%v)", err)
+		return
+	}
+	for i := 0; i < 2; i++ {
+		if _, err = conn.Receive(); err != nil {
+			log.Error("conn.Receive() error(%v)", err)
+			return
+		}
+	}
+	return
+}

app/interface/main/web-goblin/dao/wechat/qrcode_test.go

@@ -0,0 +1,58 @@
+package wechat
+
+import (
+	"context"
+	"testing"
+
+	"go-common/app/interface/main/web-goblin/model/wechat"
+	"go-common/library/ecode"
+
+	"github.com/smartystreets/goconvey/convey"
+)
+
+func TestWechatQrcode(t *testing.T) {
+	convey.Convey("Qrcode", t, func(ctx convey.C) {
+		var (
+			c           = context.Background()
+			accessToken = "14_LZVbKTtstzal_T-AfG-EgkUI2WlCdRvKUqhiYKMhNyxsGjzc1K_a1GGWuMPCbX"
+			arg         = `{"page":"","scene":"?avid=34188644"}`
+		)
+		ctx.Convey("When everything goes positive", func(ctx convey.C) {
+			qrcode, err := d.Qrcode(c, accessToken, arg)
+			ctx.Convey("Then err should be nil.qrcode should not be nil.", func(ctx convey.C) {
+				ctx.So(err, convey.ShouldEqual, ecode.RequestErr)
+				ctx.Println(qrcode)
+			})
+		})
+	})
+}
+
+func TestWechatAddCacheAccessToken(t *testing.T) {
+	convey.Convey("AddCacheAccessToken", t, func(ctx convey.C) {
+		var (
+			c    = context.Background()
+			data = &wechat.AccessToken{AccessToken: "string", ExpiresIn: 1111}
+		)
+		ctx.Convey("When everything goes positive", func(ctx convey.C) {
+			err := d.AddCacheAccessToken(c, data)
+			ctx.Convey("Then err should be nil.", func(ctx convey.C) {
+				ctx.So(err, convey.ShouldBeNil)
+			})
+		})
+	})
+}
+
+func TestWechatCacheAccessToken(t *testing.T) {
+	convey.Convey("CacheAccessToken", t, func(ctx convey.C) {
+		var (
+			c = context.Background()
+		)
+		ctx.Convey("When everything goes positive", func(ctx convey.C) {
+			data, err := d.CacheAccessToken(c)
+			ctx.Convey("Then err should be nil.data should not be nil.", func(ctx convey.C) {
+				ctx.So(err, convey.ShouldBeNil)
+				ctx.So(data, convey.ShouldNotBeNil)
+			})
+		})
+	})
+}