Question

我写了一些与默认规则完美配合的代码。代码是这样的：

import numpy as np
import tensorflow as tf

N_CHANNELS = 5
pl=tf.placeholder(dtype=tf.int32, shape=(None, 28, 28, N_CHANNELS))

# Indices we'll use. batch_size = 4 here.
label_predictions = tf.constant([0, 2, 0, 3])

# Indices of shape [?, 2], with indices[i] = [i, self.label_predictions[i]],
# which is easy to do with tf.range() and tf.stack()
indices = tf.stack([tf.range(tf.size(label_predictions)), label_predictions], axis=-1)
# [[0, 0], [1, 2], [2, 0], [3, 3]]

transposed = tf.transpose(pl, perm=[0, 3, 1, 2])
gathered = tf.gather_nd(transposed, indices)  # Should be of shape (4, 2, 3)
result = tf.expand_dims(gathered, -1)

initial_value = np.arange(4*28*28*N_CHANNELS).reshape((4, 28, 28, N_CHANNELS))
sess = tf.InteractiveSession()
res = sess.run(result, feed_dict={pl: initial_value})
# print(res)

print("checking validity")
for i in range(4):
    for x in range(28):
        print(x)
        for y in range(28):
            assert res[i, x, y, 0] == initial_value[i, x, y, indices[i, 1].eval()]
print("All assertions passed")

但是如果我使用这些规则

function listenerNewMessages(chats) {

        chats.forEach(function(item) {

            db.collection("pm").doc(chats[0]).collection('messaggi')
            .onSnapshot(function(snapshot) {
                snapshot.docChanges().forEach(function(change) {
                    if (change.type === "added" && change.doc.data().idUser != idUser && (String(Date.now()) > change.doc.id  && dateChat < change.doc.id) && idChat != item) {

                        //alert('hai ricevuto un nuovo messaggio in '+ item)
                        $('#contact-'+item).removeClass('flash')

                        setTimeout(function(){
                            $('#contact-'+item).addClass('flash')
                        }, 50);
                    }
                })

            })
        })
    }

我明白了

service cloud.firestore {
  match /databases/{database}/documents {
    match /pm/{pm} {
      allow read, write: if request.auth.uid == resource.data.partecipanti.partecipante1 || request.auth.uid == resource.data.partecipanti.partecipante2;
    }

  }
}

我在做什么错了？

Answer 1

您需要为新写入添加request.resource限定符。

allow read, write: if request.auth.uid == request.resource.data.some-property-A || request.auth.uid == resource.data.some-property-A;

allow read, write: if request.auth.uid == request.resource.data.some-property-B || request.auth.uid == resource.data.some-property-B;

设置新规则后，Firestore缺少权限或权限不足

1 个答案: