feat(setting): add image key manual setting (#238)

internal/chatlog/app.go

@@ -484,6 +484,11 @@ func (a *App) settingSelected(i *menu.Item) {
 			description: "配置数据解密密钥",
 			action:      a.settingDataKey,
 		},
+		{
+			name:        "设置图片密钥",
+			description: "配置图片解密密钥",
+			action:      a.settingImgKey,
+		},
 		{
 			name:        "设置数据目录",
 			description: "配置微信数据文件所在目录",
@@ -594,6 +599,30 @@ func (a *App) settingDataKey() {
 	a.SetFocus(formView)
 }
 
+// settingImgKey 设置图片密钥 (ImgKey)
+func (a *App) settingImgKey() {
+	formView := form.NewForm("设置图片密钥")
+
+	tempImgKey := a.ctx.ImgKey
+
+	formView.AddInputField("图片密钥", tempImgKey, 0, nil, func(text string) {
+		tempImgKey = text
+	})
+
+	formView.AddButton("保存", func() {
+		a.ctx.SetImgKey(tempImgKey)
+		a.mainPages.RemovePage("submenu2")
+		a.showInfo("图片密钥已设置")
+	})
+
+	formView.AddButton("取消", func() {
+		a.mainPages.RemovePage("submenu2")
+	})
+
+	a.mainPages.AddPage("submenu2", formView, true, true)
+	a.SetFocus(formView)
+}
+
 // settingDataDir 设置数据目录
 func (a *App) settingDataDir() {
 	// 使用我们的自定义表单组件

internal/chatlog/ctx/context.go

@@ -227,6 +227,16 @@ func (c *Context) SetDataDir(dir string) {
 	c.Refresh()
 }
 
+func (c *Context) SetImgKey(key string) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	if c.ImgKey == key {
+		return
+	}
+	c.ImgKey = key
+	c.UpdateConfig()
+}
+
 func (c *Context) SetAutoDecrypt(enabled bool) {
 	c.mu.Lock()
 	defer c.mu.Unlock()