sundynix-agentix/sundynix-gateway/internal/wechat/mp_test.go

package wechat

import (
	"crypto/sha1"
	"encoding/hex"
	"sort"
	"strings"
	"testing"
)

func TestConfig_Enabled(t *testing.T) {
	// 三者缺一不可：appid+secret 建二维码，token 验签
	cases := []struct {
		c    Config
		want bool
	}{
		{Config{AppID: "a", AppSecret: "s", Token: "t"}, true},
		{Config{AppID: "a", AppSecret: "s"}, false},
		{Config{AppID: "a", Token: "t"}, false},
		{Config{}, false},
	}
	for _, tc := range cases {
		if got := tc.c.Enabled(); got != tc.want {
			t.Fatalf("%+v Enabled=%v want %v", tc.c, got, tc.want)
		}
	}
}

// 验签必须与微信算法一致：sha1(sort(token,ts,nonce))。
func TestCheckSignature(t *testing.T) {
	c := Config{Token: "mytoken"}
	ts, nonce := "1700000000", "abc123"
	arr := []string{c.Token, ts, nonce}
	sort.Strings(arr)
	sum := sha1.Sum([]byte(strings.Join(arr, "")))
	good := hex.EncodeToString(sum[:])

	if !c.CheckSignature(good, ts, nonce) {
		t.Fatal("正确签名应通过")
	}
	if c.CheckSignature("deadbeef", ts, nonce) {
		t.Fatal("错误签名不该通过")
	}
	if (Config{}).CheckSignature(good, ts, nonce) {
		t.Fatal("无 token 一律不通过（防未配置时被绕过）")
	}
}

// 事件解析 + scene 提取：subscribe 带 qrscene_ 前缀，SCAN 不带；两者都要能登录。
func TestParseEvent_SubscribeAndScan(t *testing.T) {
	subscribe := `<xml><ToUserName><![CDATA[gh_x]]></ToUserName>
<FromUserName><![CDATA[openid_new]]></FromUserName>
<MsgType><![CDATA[event]]></MsgType>
<Event><![CDATA[subscribe]]></Event>
<EventKey><![CDATA[qrscene_tkt-abc]]></EventKey></xml>`
	ev, err := ParseEvent([]byte(subscribe))
	if err != nil {
		t.Fatal(err)
	}
	if !ev.IsLoginScan() {
		t.Fatal("subscribe 带 qrscene 应识别为登录扫码")
	}
	if ev.Scene() != "tkt-abc" {
		t.Fatalf("subscribe 应剥掉 qrscene_ 前缀，得 %q", ev.Scene())
	}
	if ev.FromUserName != "openid_new" {
		t.Fatalf("openid 取错：%q", ev.FromUserName)
	}

	scan := `<xml><FromUserName><![CDATA[openid_old]]></FromUserName>
<MsgType><![CDATA[event]]></MsgType>
<Event><![CDATA[SCAN]]></Event>
<EventKey><![CDATA[tkt-def]]></EventKey></xml>`
	ev2, _ := ParseEvent([]byte(scan))
	if !ev2.IsLoginScan() || ev2.Scene() != "tkt-def" {
		t.Fatalf("SCAN 事件应识别，scene=%q", ev2.Scene())
	}
}

// 非登录事件（取关、普通消息）不能被当成登录。
func TestParseEvent_IgnoresNonLogin(t *testing.T) {
	unsub := `<xml><FromUserName><![CDATA[o]]></FromUserName><MsgType><![CDATA[event]]></MsgType><Event><![CDATA[unsubscribe]]></Event></xml>`
	ev, _ := ParseEvent([]byte(unsub))
	if ev.IsLoginScan() {
		t.Fatal("取关事件不该被当成登录")
	}
	// 无 scene 的 subscribe（用户直接搜号关注，不是扫登录码）也不登录
	plainSub := `<xml><FromUserName><![CDATA[o]]></FromUserName><MsgType><![CDATA[event]]></MsgType><Event><![CDATA[subscribe]]></Event><EventKey><![CDATA[]]></EventKey></xml>`
	ev2, _ := ParseEvent([]byte(plainSub))
	if ev2.IsLoginScan() {
		t.Fatal("无 scene 的关注不该触发登录")
	}
	text := `<xml><FromUserName><![CDATA[o]]></FromUserName><MsgType><![CDATA[text]]></MsgType><Content><![CDATA[hi]]></Content></xml>`
	ev3, _ := ParseEvent([]byte(text))
	if ev3.IsLoginScan() {
		t.Fatal("普通文本消息不该触发登录")
	}
}

func TestConfig_SecretRoundTrip(t *testing.T) {
	c := Config{AppID: "x", AppSecret: "plain-secret", Token: "t"}
	stored, err := c.EncryptedForStore()
	if err != nil {
		t.Fatal(err)
	}
	if stored.AppSecret == "plain-secret" {
		t.Fatal("落库不该是明文")
	}
	if back := stored.DecryptFromStore(); back.AppSecret != "plain-secret" {
		t.Fatalf("还原失败：%q", back.AppSecret)
	}
}