请求之间未存储 Google 助理位置权限答案

【问题标题】：Google Assistant location permissions not stored between requests请求之间未存储 Google 助理位置权限
【发布时间】：2017-07-11 21:17:45
【问题描述】：

通过 API.AI 和 Google 助理，我请求获取用户姓名和位置的权限。目的是我将能够请求一次许可，随后对我的 Action 的请求将不需要再次请求（因为每次用户与我的 Action 交谈时，这都会导致对话非常生硬）。

我发现我只获取与actions_intent_PERMISSION 相关联的意图中的信息 - 即使我已经授予权限，该信息也不会在其他意图实现中发送。（在下面的示例代码中 - 它最终重新请求所有其他意图的权限。）

我也没有看到在调用我的操作之间维护此权限。因此，每次触发 Action 时，都会（再次）询问他们是否授予该操作权限。

这两种行为看起来都很奇怪。一般来说，应用程序模型不需要我在应用程序调用之间重新授权对资源的权限，甚至在应用程序“运行”时也不需要。甚至网页在会话期间也会保留授权。我做错了什么，还是这是预期的行为？

正在执行的代码（这在 Google Cloud Functions 中运行，并且有一些额外的结构通过 Promise 进行这些调用 - 这只是代码的相关部分）。 res.send(200) 只是向 API.AI 表明它应该使用那里定义的响应，并且可以正常工作。 return Promise.resolve(null); 只是确保不执行其他回退/错误条件。


exports.process = function( req, res ){
  var app = new ApiAiApp({request:req, response:res});

  if( app.isPermissionGranted() ){
    res.send( 200 );
    return Promise.resolve( null );
  } else {
    return askPermission( req, res, app );
  }
};

var askPermission = function( req, res, app ){
  //app.tell('foo');
  let namePermission = app.SupportedPermissions.NAME;
  let preciseLocationPermission = app.SupportedPermissions.DEVICE_PRECISE_LOCATION;

  // Ask for more than one permission. User can authorize all or none.
  app.askForPermissions('To address you by name and know your location',
    [namePermission, preciseLocationPermission]);
  return Promise.resolve( null );
};

处理actions_intent_PERMISSION请求的API.AI Intent：

另一个应具有用户/位置有效负载的 Intent，但永远不会使用该信息调用

模拟器的屏幕截图表明它总是请求许可，除非它特别被授予：

初始连接时发送的 JSON：


{
 "originalRequest": {
  "source": "google",
  "version": "2",
  "data": {
   "isInSandbox": true,
   "surface": {
    "capabilities": [
     {
      "name": "actions.capability.AUDIO_OUTPUT"
     },
     {
      "name": "actions.capability.SCREEN_OUTPUT"
     }
    ]
   },
   "inputs": [
    {
     "rawInputs": [
      {
       "query": "talk to my test app",
       "inputType": "KEYBOARD"
      }
     ],
     "intent": "actions.intent.MAIN"
    }
   ],
   "user": {
    "locale": "en-US",
    "userId": "APhe68HKWmHGe9cojGOMrX9WKQ0l"
   },
   "device": {},
   "conversation": {
    "conversationId": "1499807128489",
    "type": "NEW"
   }
  }
 },
 "id": "7e301f85-4178-4be6-8b7c-408bad3ef62b",
 "timestamp": "2017-07-11T21:05:28.504Z",
 "lang": "en",
 "result": {
  "source": "agent",
  "resolvedQuery": "GOOGLE_ASSISTANT_WELCOME",
  "speech": "",
  "action": "input.welcome",
  "actionIncomplete": false,
  "parameters": {},
  "contexts": [
   {
    "name": "google_assistant_welcome",
    "parameters": {},
    "lifespan": 0
   },
   {
    "name": "actions_capability_screen_output",
    "parameters": {},
    "lifespan": 0
   },
   {
    "name": "actions_capability_audio_output",
    "parameters": {},
    "lifespan": 0
   },
   {
    "name": "google_assistant_input_type_keyboard",
    "parameters": {},
    "lifespan": 0
   }
  ],
  "metadata": {
   "intentId": "f31e371a-db9e-4e00-8002-546ec14d40a9",
   "webhookUsed": "true",
   "webhookForSlotFillingUsed": "false",
   "nluResponseTime": 2,
   "intentName": "Default Welcome Intent"
  },
  "fulfillment": {
   "speech": "I'm not sure, I'm a little confused.",
   "messages": [
    {
     "type": 0,
     "speech": "I'm not sure, I'm a little confused."
    }
   ]
  },
  "score": 1
 },
 "status": {
  "code": 200,
  "errorType": "success"
 },
 "sessionId": "1499807128489"
}

请求许可后发送的 JSON，我已授予它。正如预期的那样，originalRequest.data.user 有名称，originalRequest.data.device 现在有位置。


{
 "originalRequest": {
  "source": "google",
  "version": "2",
  "data": {
   "isInSandbox": true,
   "surface": {
    "capabilities": [
     {
      "name": "actions.capability.AUDIO_OUTPUT"
     },
     {
      "name": "actions.capability.SCREEN_OUTPUT"
     }
    ]
   },
   "inputs": [
    {
     "rawInputs": [
      {
       "query": "yes",
       "inputType": "KEYBOARD"
      }
     ],
     "arguments": [
      {
       "rawText": "yes",
       "textValue": "true",
       "name": "PERMISSION"
      }
     ],
     "intent": "actions.intent.PERMISSION"
    }
   ],
   "user": {
    "profile": {
     "displayName": "Allen Firstenberg",
     "givenName": "Allen",
     "familyName": "Firstenberg"
    },
    "locale": "en-US",
    "userId": "APhe68HKWmHGe9cojGOMrX9WKQ0l"
   },
   "device": {
    "location": {
     "coordinates": {
      "latitude": 37.4219806,
      "longitude": -122.0841979
     }
    }
   },
   "conversation": {
    "conversationId": "1499807128489",
    "type": "ACTIVE",
    "conversationToken": "[\"_actions_on_google_\"]"
   }
  }
 },
 "id": "7a75593e-55d0-4962-ad91-564d47e5df13",
 "timestamp": "2017-07-11T21:05:43.391Z",
 "lang": "en",
 "result": {
  "source": "agent",
  "resolvedQuery": "actions_intent_PERMISSION",
  "speech": "",
  "action": "",
  "actionIncomplete": false,
  "parameters": {},
  "contexts": [
   {
    "name": "actions_capability_screen_output",
    "parameters": {},
    "lifespan": 0
   },
   {
    "name": "_actions_on_google_",
    "parameters": {},
    "lifespan": 99
   },
   {
    "name": "actions_intent_permission",
    "parameters": {
     "PERMISSION": "true"
    },
    "lifespan": 0
   },
   {
    "name": "actions_capability_audio_output",
    "parameters": {},
    "lifespan": 0
   },
   {
    "name": "google_assistant_input_type_keyboard",
    "parameters": {},
    "lifespan": 0
   }
  ],
  "metadata": {
   "intentId": "5d154d71-63f1-43a9-9c18-70d78bfd700f",
   "webhookUsed": "true",
   "webhookForSlotFillingUsed": "false",
   "nluResponseTime": 1,
   "intentName": "Location result"
  },
  "fulfillment": {
   "speech": "you're allowed",
   "messages": [
    {
     "type": 0,
     "speech": "you're allowed"
    }
   ]
  },
  "score": 1
 },
 "status": {
  "code": 200,
  "errorType": "success"
 },
 "sessionId": "1499807128489"
}

在我授予权限后发送 JSON（如上），然后发出“简单测试”短语。请注意，用户和设备字段缺少授予权限的信息，但这是正确的意图。


{
 "originalRequest": {
  "source": "google",
  "version": "2",
  "data": {
   "isInSandbox": true,
   "surface": {
    "capabilities": [
     {
      "name": "actions.capability.AUDIO_OUTPUT"
     },
     {
      "name": "actions.capability.SCREEN_OUTPUT"
     }
    ]
   },
   "inputs": [
    {
     "rawInputs": [
      {
       "query": "simple test",
       "inputType": "KEYBOARD"
      }
     ],
     "arguments": [
      {
       "rawText": "simple test",
       "textValue": "simple test",
       "name": "text"
      }
     ],
     "intent": "actions.intent.TEXT"
    }
   ],
   "user": {
    "locale": "en-US",
    "userId": "APhe68HKWmHGe9cojGOMrX9WKQ0l"
   },
   "device": {},
   "conversation": {
    "conversationId": "1499807128489",
    "type": "ACTIVE",
    "conversationToken": "[\"_actions_on_google_\"]"
   }
  }
 },
 "id": "f1804e02-bafc-4656-8726-0955bfb4f75d",
 "timestamp": "2017-07-11T21:05:55.001Z",
 "lang": "en",
 "result": {
  "source": "agent",
  "resolvedQuery": "simple test",
  "speech": "",
  "action": "",
  "actionIncomplete": false,
  "parameters": {},
  "contexts": [
   {
    "name": "actions_capability_screen_output",
    "parameters": {},
    "lifespan": 0
   },
   {
    "name": "_actions_on_google_",
    "parameters": {},
    "lifespan": 98
   },
   {
    "name": "actions_capability_audio_output",
    "parameters": {},
    "lifespan": 0
   },
   {
    "name": "google_assistant_input_type_keyboard",
    "parameters": {},
    "lifespan": 0
   }
  ],
  "metadata": {
   "intentId": "48257e82-3615-4445-8ea2-be21980b7115",
   "webhookUsed": "true",
   "webhookForSlotFillingUsed": "false",
   "nluResponseTime": 4,
   "intentName": "simple test"
  },
  "fulfillment": {
   "speech": "",
   "messages": [
    {
     "type": 0,
     "speech": ""
    }
   ]
  },
  "score": 1
 },
 "status": {
  "code": 200,
  "errorType": "success"
 },
 "sessionId": "1499807128489"
}

在两个会话之间执行此操作会产生相同的结果。

【问题讨论】：

标签： actions-on-google api-ai

【解决方案1】：

这是预期的行为。现在，我们建议在您的终端上保留用户许可的数据，由用户 ID 键入。要了解我们可能会如何推荐这样做，请查看 Name Psychic 示例。在该示例中，我们使用Firebase Realtime DB 在意图/对话中为该用户保留许可数据。

【讨论】：

答案被接受，因为它显然是预期的，但是虽然这对于很少更改的东西（例如名称）可能是合理的，但缓存...移动的设备的位置似乎是不合理的。跨度>
同意，我们不建议在移动设备（即 SCREEN_OUTPUT 设备）上缓存精确的位置许可数据。在这些情况下，是的，您应该在每次想要跨对话访问该位置时询问。
@SachitMishra 你打算改变这种行为吗？在我看来，最好只授予一次权限并让我们的行为更具上下文意识。
@SachitMishra 我有点好奇，你知道为什么选择不使用与 Android 相同的权限模型吗？是否建议如果我们有用户的位置，我们应该不时询问他们是否是最新的？